GB 16914-1997 General Safety Technical Principles for Gas Burning Appliances
Some standard content:
GB16914-1997
Foreword
This standard is prepared based on the Japanese Industrial Standard JISS2092-91 "General Structural Principles of Household Gas Burning Appliances" and Japan's "Installation Regulations for Gas Burning Appliances" (1983 Edition). It is technically Equivalent in content. When this standard was compiled based on Japanese standards, in order to be consistent with Chinese standards, the upper limit of heat flow for direct-vent household gas burning appliances is still in accordance with Chinese standards.
This standard is proposed by the Ministry of Construction of the People's Republic of China. This standard is under the jurisdiction of China Municipal Engineering North China Design and Research Institute, the technical focal point for urban gas standards under the Ministry of Construction. This standard was drafted by: China Municipal Engineering North China Design and Research Institute, Guangdong Shenzhou Gas Appliances Co., Ltd., Beijing Natural Gas Company, Beijing Gas Appliances Factory, Zhejiang Cixi Gas Safety Appliances Factory, Guangdong Shunde Wanhe Electrical Appliances Co., Ltd., Meiling Group Hefei Mei Ji Kitchen Appliances Co., Ltd., Guangdong Zhongshan Baide Dachang Gas Appliances Co., Ltd., China Hongxiang Group Laizhou Gas Appliances Factory, Chengdu Qianfeng Electronics Co., Ltd.
The main drafters of this standard are: Gao Yong, Zhang Daoming, Xu Zhigang, Guo Minghui, Lu Fu, Ye Yuanzhang, Zhao Jun, Li Hongbin, Sun Shuguo, Chen Haibo793
1 Scope
People's Republic of China National Standard
General safety technical requirements of gas burning appliances
GB 16914-1997
Safety technical requirements for the design and manufacture, selection, installation, inspection and acceptance, use and maintenance of tools).
This standard applies to burning appliances used in civil and public buildings. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB/T13611-92 Urban Gas Classification
GB50028-93 Urban Gas Design Specification
CJ3062-1996 General Safety Requirements for Gas Burning Appliances Using AC Power Supply 3 General Provisions
3.1 In order to strengthen the safety requirements for civil use This standard is specially formulated to supervise the safety of burning appliances used in public buildings, ensure safe operation, and protect the safety of people's lives and property.
3.2 This standard is the basic requirement for the safety and technical supervision of burning appliances. The design, manufacture, installation, use, inspection and modification of burning appliances must comply with the provisions of relevant standards and specifications and meet the requirements of this standard. . 3.3 The quality of gas (category, characteristics, pressure and impurity content, etc.) that is directly related to the safety of burning appliances should comply with the regulations of GB50028 and GB/T13611; the quality of burning appliances and their accessories (exhaust pipes, pressure regulators, hoses and joints) etc.) should comply with relevant product standards: installation quality should comply with installation regulations; use and maintenance quality should comply with relevant management regulations. 3.4 This standard applies to gas water heaters, gas stoves, gas ovens, gas rice cookers, gas heating stoves, gas convenience stoves (cassette stoves) used in civil buildings, gas Chinese dining stoves, gas large cookers, gas stoves used in public buildings Water boilers, etc., as well as other burning appliances used in civil and public buildings such as inlet and exhaust facilities, gas leakage alarms, gas pipes, etc. used in conjunction with burning appliances should also refer to the implementation. 4 Design and manufacturing
4.1 General structural design
4.1.1 Smoke exhaust device
The following types of burning appliances must be equipped with exhaust pipe interfaces: a) Heating furnace; ||tt| |b) Water heaters with heat flow greater than 11.6kw (10000kcal/h); State Bureau of Technical Supervision approved 794
1998-05-01 on 794
c) Bath water heaters on 1997-07-07.
4.1.2 Electrical components
GB 16914--1997
Burning appliances using AC power supply should comply with the regulations of CJ3062. 4.1.3 Self-operating burning appliances (timing, constant temperature, automatic starting burning appliances) burning appliances with self-operating function shall comply with the following regulations; a) The gas interface shall adopt a tapered pipe thread or a quick connector that meets the specified requirements (4.2 kPa, leakage amount below 0.07L/h) connection;
b) The gas path leading to the burner should be connected in series with two or more solenoid valves, and the functions of the solenoid valves should be independent of each other; c) Series All the solenoid valves specified in b) are closed, and the leakage is less than 0.07L/h under 4.2kPa air pressure; d) An overheating protection device is installed.
4.2 Explosion-proof structural design
4.2.1 Fire viewing holes and ignition holes should be provided.
4.2.2 The explosion-proof and explosion-proof structures of large pots, water boilers, and volumetric water heaters shall comply with the following regulations:
a) The furnace and flue should be equipped with explosion-proof doors, and the explosion-proof doors can be 1m smoke each The volume of the tunnel or furnace is designed to have a pressure relief area of ??not less than 250cm2;
b) The burner used in the furnace should be equipped with a long open flame ignition burner, the ignition burner air supply valve and the main burner air supply valve It is advisable to choose a chain design.
4.2.3 Explosion-proof ovens and ovens
Ovens and ovens should be of a structure in which the fire hole can only be exposed and ignited by opening the door or furnace door. However, for those equipped with flameout protection devices and capable of igniting, Except for safety ignition.
4.3 Safety device design
4.3.1 Flameout protection device
4.3.1.1 Burning appliances with the following conditions must be equipped with flameout protection devices:; a) Actively controlled burning appliances ;
b) Automatic ignition burning appliances with closed or semi-closed furnaces; c) Burning appliances whose ignition cannot be confirmed;
d) Burning appliances that may accidentally flame out. 4.3.1.2 The performance of the flameout protection device must meet the following requirements: a) When the burner (main fire or small flame) is not ignited or flameout or blowout occurs midway, the gas path leading to the burner should be Automatically shut down within the time specified by the standard; b) When the flame monitoring part is damaged, the gas path to the burner should be automatically closed) The relative position of the flame monitoring part and the burner should remain unchanged under normal use conditions. 4.3.2 Overheating protection device
Burning appliances (water heaters, etc.) that may cause air burning or overheating should be equipped with an overheating protection device. The overheating protection device must meet the following requirements: a) Automatically cut off the gas path before overheating occurs in or around the burning appliance; b) When the temperature returns to normal, the gas path should not be automatically opened again. 4.3.3 Safety device for excessive wind pressure
Semi-closed forced exhaust burning appliances should be equipped with a safety device for excessive wind pressure. The safety device for excessive wind pressure should be tested according to the method specified in the standards for burning appliances. When the top of the exhaust pipe is subjected to excessive wind pressure, the gas path should be automatically cut off before the burner flame becomes unstable. 4.3.4 Flue blockage safety device
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Semi-closed forced exhaust burning appliances should be equipped with a flue blockage safety device. The flue blockage safety device should be tested according to the method specified in the standards for burning appliances. When the flue exhaust port is blocked, the gas path to the burner should be automatically cut off within 5 minutes. In the closed state, the gas passage no longer opens automatically. 4.3.5 Pressure detection safety device
Cassette furnaces using butane gas must be equipped with a pressure detection safety device. Pressure detection safety device at 0.40.? It should operate within the pressure range of MPa. After the structural action that closes the gas passage, the gas passage no longer opens automatically.
4.3.6 Time-limited use cut-off device
Direct-discharge water heaters should be equipped with time-limited use cut-off devices. 4.3.7 When the safety device is damaged, there is a power outage or an operation error occurs, the gas valve should be in a closed state. 4.3.8 Safety devices, alarms and other components must be verified by the designated department, and the installation department should conduct regular inspections. 4.3.9 The functions and quality indicators of safety devices should comply with relevant standards. 4.4 Inspection of important components
The main quality indicators of important components such as valve assemblies, controllers, safety devices and burning appliances must be inspected one by one before assembly. Those that fail to meet the standards are strictly prohibited from assembly and use.
4.5 Factory inspection of burning appliances (production line process inspection) Each burning appliance must be inspected for the following items in accordance with relevant standards before leaving the factory: a) Air tightness of the gas system:
b) Water System pressure resistance;
c) Combustion conditions:
d) Insulation performance (AC power supply).
4.6 Safety and health indicators
4.6.1 Air tightness of the gas system
The air tightness of the gas system should meet the following requirements: a) Air leakage of low-pressure burning appliances| |tt||The pressure of civilian burning appliances is 4.2kPa, and the pressure of public burning appliances is 7.Under 5kPa air pressure, the air tightness of the gas system should meet the following requirements: 1) For valves that have a sealing function, the air leakage should be less than 0.07L/h; 2) For valves that have automatic control functions, the air leakage should be less than 0.55 L/h. b) Pressure drop of medium- and high-pressure burning appliances
Medium-pressure burning appliances (public burning appliances) are under 0.15MPa air pressure, and the high-pressure side of high-pressure burning appliances (cassette furnaces) are at 0.9MPa (air tightness) and 1.3MPa (pressure resistance) air pressure, and the time is 1 minute, no air leakage (soap water check) and pressure drop (pressure gauge check) should occur. 4.6.2 Combustion stability
Combustion should be stable, and no defire, temper, yellow fire or carbon precipitation should occur. The combustion stability should be tested respectively under the gas pressure of 0.5 power or 1.5 power according to the limit gas specified by the relevant standards. 4.6.3 Carbon monoxide (CO) content in flue gas The carbon monoxide (CO) content in flue gas should comply with relevant product standards. 5 Selection
5.1--General Provisions
5.1.1 Users should select burning appliances based on factors such as gas category, installation conditions and usage. 5.1.2 The gas category code of the burning appliance must be consistent with the category code of the local gas supply. 5.1.3 The conditions required for the installation of burning appliances must be consistent with the conditions that may be achieved at the installation location. It is strictly prohibited to use it when the installation conditions do not meet the requirements. The installation conditions should include the following items:
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a) Ventilation conditions required for the installation of burning appliances;
GB 16914-1997
b) Ventilation conditions required for the installation of burning appliances Water supply, power supply, and gas supply conditions; c) Fire protection and heat insulation conditions required for the installation of burning appliances d) Other safety conditions required for the installation of burning appliances. 5.2 Selection of civilian burning appliances
5.2.1 Direct-discharge burning appliances
The selection range of direct-discharge burning appliances should meet the following requirements: a) Single-burner stoves, double-burner stoves, ovens, ovens and Gas stoves such as rice cookers; b) Gas water heaters with heat flow less than 11.6kw (10000kcal/h). 5.2.2 The selection range of semi-closed and closed burning appliances should meet the following requirements: a) bath water heater;
b) water heater;
c) heating furnace;
d) Other burning appliances equipped with exhaust pipes.
5.2.3 When taking a bath, it is advisable to choose semi-closed or closed burning appliances. 5.3 Selection of public burning appliances
Burning appliances with smoke exhaust devices or supplied with smoke exhaust facilities should be selected. 6 Installation
6.1-General Provisions
6.1.1 Users who install burning appliances should apply for approval from the local urban gas management department before installation. 6.1.2 The installation of burning appliances must be carried out in accordance with the design and construction drawings approved by the urban gas management department. 6.1.3 The installation unit of burning appliances must apply to the local urban gas management department. Only after passing the review and obtaining the registration certificate can they engage in the installation of burning appliances.
6.1.4 After installation, the burning appliance must be inspected and accepted by the local urban gas management department before it can be operated and used. 6.2 Installation location
6.2.1 Rooms and locations for installation
6.2.1.1 It is strictly prohibited to install burning appliances in the following rooms and locations: a) Bedrooms, basements:
b) Bathrooms (enclosed) (Except for burning appliances)); c) Near stairs and safety exits (not restricted beyond 5m); d) Storage areas of flammable and explosive items;
e) Rooms with corrosive media; || tt||f) Wires and electrical equipment.
6.2.1.2 Burning appliances can be installed in the following rooms and locations: a) kitchen;
b) non-residential rooms,
c) outdoors, verandas, and balconies (all should be windproof , rain and snow facilities). 6.2.1.3 Public burning appliances in public buildings, when installed in basements and kitchens (without doors and secrets directly leading to the outdoors), should comply with the relevant provisions of 7.2.27-~7.2.28 in GB50028--93. 6.2.2 The building of the kitchen or room where the burning appliance is installed The building of the kitchen or room where the burning appliance is installed shall comply with the following regulations; a) The inlet and exhaust outlets and flues shall comply with the provisions of Chapter 6; 797
GB 16914—1997
b) When installing burning appliances on walls or floors made of combustible or refractory materials, effective fire prevention and heat insulation measures should be taken; c) The installation room or kitchen close to the bedroom should have A door separates the bedroom. 6.2.3 Smoke exhaust facilities
Smoke exhaust facilities shall comply with the provisions of 7.7 in GB50028-93. 6.2.4 The gas leakage alarm and cut-off device should be installed in the installation space of burning appliances. 6.2.5 The installation space of direct-discharge water heaters should be equipped with automatic interlocking devices for water heaters and exhaust fans (with manual function). 6.3 Pipeline connection
6.3.1 The air tightness of the gas system and the pressure resistance of the water system. The connection between the burning appliance and the gas pipeline must ensure that there is no leakage of gas; the connection between the burning appliance and the water pipeline must ensure that there is no gas leakage. No leakage, no deformation, no detachment.
6.3.2 Connection method
For fixed burning appliances, metal pipes, metal flexible pipes or reinforced hoses (with reinforced metal mesh or fiber mesh) should be used for connection: For mobile burning appliances, reinforced soft Pipes, hoses or hose connections with quick connectors at both ends; hose joints should be tightened with special clamps. 6.3.3 Pipe material
Gas hoses should be special gas hoses that are anti-magic and oil-resistant; water hoses should be special hoses that meet sanitary requirements and water pressure and water temperature requirements; steel pipes should be galvanized steel pipes .
6.3.4 Hose connection length and replacement
The length of the hose should be within 3m, and the hose for temporary and seasonal use can be within 5m. The hose used should be replaced regularly.
6.3.5 Pipe valves
Valves should be installed on the gas supply and water supply branch pipes connected to the burning appliances. When the burning appliance is connected with a hose, a gas cock (safety cock) with an overflow protection valve should be installed on the gas supply branch pipe. 6.4 Electrical connection
6.4.1 Construction qualifications
The electrical installation construction of burning appliances, except for installation of movable flexible wires and other operations, must be carried out by qualified technicians. 6.4.2 Technical requirements
shall comply with the requirements of CJ3062.
6.5 Anti-snow and anti-freeze
When installing burning appliances in cold areas or outdoors where freezing is possible, the following protective measures should be taken: a) The burning appliances should not be affected by snow or falling snow after installation , ice hanging and freezing; b) The burning appliances that supply hot water should have anti-freeze measures, and the water supply pipes and hot water pipes should be anti-freeze construction. c) Drain plugs should be installed on the water supply and hot water pipes of the burning appliances. The drain plug should be located in a position to drain away the accumulated water in the burning appliance. 6.6 Installation of civil burning appliances
6.6.1 Direct-discharge burning appliances
6.6.1.1 Intake and exhaust equipment
Burning appliances with heat flow less than 11.6kW (10000kcal/h) , the room where the burning appliance is installed should be equipped with exhaust equipment: there should be an air inlet in the room where the burning appliance is installed.
6.6.1.2 Exhaust equipment
The exhaust equipment of direct-discharge burning appliances shall comply with the following regulations: a) Gas stoves
The exhaust equipment shall be equipped with any of the following exhaust equipment :798
1) Install an exhaust pipe with a hood above the stove: 2) Install a range hood above the stove:
3) Install an exhaust fan.
b) Gas water heater
GB 16914-1997
Exhaust fan should be installed (forced exhaust, with or without hood) 6.6.1.3 Exhaust fan capacity
For direct-discharge burning appliances, the exhaust volume of the heat flow of 1kW (860kcal/h) should be greater than 40.9m2/h; after installing an effective exhaust hood, the exhaust volume of the exhaust fan should be greater than 30.7 m2/h.
6.6.1.4 Exhaust fan installation location
The installation location should comply with the following regulations
a) The exhaust fan should be installed in a place directly connected to the atmosphere; b) The suction inlet of the exhaust fan The location should be higher than the installation location of the burning appliance, and should be as close as possible to the ceiling and the burning appliance (the horizontal clear distance from the burning appliance shall not be less than 30 cm).
6.6.1.5 The size and position of the air inlet
The size and position of the air inlet shall comply with the following regulations: a) Unless otherwise calculated, the size of the air inlet shall be 1kW in the room where the burning appliance is installed. (860kcal/h) heat flow, the effective opening area of ??the air inlet should be greater than 9.5cm2. The gaps between doors and windows can also be used as air inlets if they reach the specified effective area. b) The air inlet should be located in a place that will not cause flameout of the burning appliance, and at the same time, it should be able to ensure good replacement of indoor air. c) The air inlet should be installed on the wall that is ventilated to the atmosphere, but if the air is circulated, it can also be installed on the wall of the adjacent room. 6.6.1.6 Natural ventilation
The heat flow is less than 5.When a 2kW (4500kcal/h) burning appliance is installed in a room other than the kitchen, an exhaust outlet should be provided in the upper part of the room and should comply with the following regulations:
a) The upper exhaust outlet should be a fixed louver Or a specially designed window frame with a small exhaust window. b) The position of the upper exhaust port should be higher than the exhaust position of the burning appliance and should be as close to the ceiling as possible. c) The size of the exhaust port should be 1kW (860kcal/h). The heat flow rate is taken as 37.8cm*. 6.6.2 Semi-closed natural exhaust gas appliances
6.6.2.1 Intake and exhaust equipment
Gas bath water heaters, heating furnaces and gas heaters with heat flow greater than 11.6kW (10000kcal/h) For appliances, an exhaust pipe must be installed, and an air inlet should be provided in the room where the burning appliance is installed. When the building does not have a flue, other reliable smoke exhaust facilities must be installed. 6.6.2.2 Exhaust pipe
The exhaust pipe shall comply with the following requirements:
a) The exhaust pipe shall effectively remove smoke, and the diameter of the exhaust pipe shall not be smaller than the connection point of the exhaust pipe of the burning appliance The diameter of Be in a location that is not affected by wind pressure. 6.6.2.3 The size and position of the air inlet and exhaust port When semi-closed natural exhaust burning appliances are installed indoors. An air inlet larger than the cross-sectional area of ??the exhaust pipe should be provided. For burning appliances with heat flow greater than 6.4kW (5500kcal/h), or when the gas consumption of 1m2 room area is greater than 7.4kW (6400kcal/h), in addition to the air inlet, an exhaust port should also be provided on the upper part. The size of the exhaust port and exhaust port should be larger than the cross-sectional area of ??the exhaust pipe. Both the air inlet and the exhaust port should be installed in locations directly connected to the atmosphere. 6.6.3 Semi-closed forced exhaust type burning appliances
6.6.3.1 The safety device of semi-closed forced exhaust type burning appliances should ensure that when the exhaust fan stops, the gas can be automatically cut off and will not start again. 6.6.3.2 The exhaust capacity of the fan should be able to overcome the resistance of the exhaust pipe and the outdoor wind pressure. For a heat flow of 1kW (860kcal/h) of the burning appliance, the exhaust capacity should be greater than 2.8m2/h ( room temperature). GB 169141997
When the exhaust hood is in the wind pressure zone, the exhaust pressure of the fan should be greater than 80Pa. When it is not in the wind pressure zone, it should be greater than 20Pa. 6.6.3.3 The diameter of the exhaust pipe, the number of elbows and the length of the exhaust pipe should be selected within the range to ensure that the exhaust capacity of the fan meets the requirements of 6.6.3.2.
6.6.3.4 The area of ??the air inlet should be larger than the effective cross-sectional area of ??the exhaust pipe, and the available door and window gaps can be used as air inlets. 6.6.4 Closed burning appliances
6.6.4.1 Installation of balanced wall-mounted burning appliances
Balanced wall-mounted burning appliances should be installed on the outer wall that is directly connected to the atmosphere, and the air supply and exhaust pipes should be installed In a space and location where smoke does not remain trapped. 6.6.4.2 Installation of shared flue-type burning appliances
The burning appliances using the shared flue should be those that have passed the test and are allowed to be used on the shared flue (appliances that burn under low oxygen concentrations).
Closed burning appliances with forced air supply and exhaust shall not be installed on the common flue. When burning appliances installed on a shared flue use gas that is heavier than air, the flue should have safety measures to prevent gas leakage. 6.7 Installation of public burning appliances
6.7.1 Large brick stoves should have a furnace, flue (annular), explosion-proof door, stove door and secondary air inlet. 6.7.2 When public burning appliances such as brick cooking stoves and ovens are built with furnaces and flues, they should also comply with the provisions of 6.7.1. 6.7.3 For direct-discharge public burning appliances, an exhaust hood should be installed on the upper part or an exhaust fan should be installed on the upper part of the exterior wall. 6.8 Installation of gas leak alarms
6.8.1 When installing gas leak alarms in locations where burning appliances are used, the following regulations should be met: a) It should be installed in the same room as the burning appliances;
b) It should be installed in a place where gas is easy to accumulate and where maintenance is easy. 6.8.2 The installation location of the gas leak alarm should comply with the following regulations: a) When the gas is lighter than the air, the alarm should be installed within 8m horizontally from the burning appliance and less than 30cm from the ceiling; b) When the gas is lighter than the air In heavy cases, the alarm should be installed within 4m of the horizontal distance from the burning appliance and less than 30cm from the ground. 6.8.3 Users who install burning appliances should install outdoor alarm buzzers. The buzzer should be installed in a place such as an outdoor door where it is easy to be noticed and heard by neighbors, and there should be no water leakage there. 7 Inspection and acceptance
7.1 The installed burning appliances shall comply with the provisions of Chapters 1 to 6. 7.2 The type and pressure of gas, as well as the water supply pressure of tap water, should comply with the requirements on the nameplate and instructions of the burning appliance. 7.3 Open the gas pipeline valve, close the gas valve of the burning appliance, and use soap solution or a leak detector to check the gas pipeline and joints. There should be no air leakage.
7.4 Open the tap water valve and the cold water inlet valve of the water heater, close the hot water outlet valve of the water heater, and visually check that there should be no water leakage in the tap water system.
7.5 According to the requirements of the operating instructions of the burning appliance, the burning appliance should be operated. The burner should burn normally and the switches of various valves should be flexible. 7.6 Flue suction force inspection
When the burning appliance is running, use a compensated micro-pressure gauge to measure it at the outlet of the safety exhaust hood (anti-backdraft hood). The flue suction force (vacuum degree) of civilian burning appliances shall not be less than 3Pa (0.3mmH20): the flue suction force (vacuum degree) of public burning appliances shall not be less than 10 Pa (1 mmH,0).
If there is no instrument, paper strips or smoking objects can be used for visual inspection. There should be suction force. 7.7 Inspection of exhaust fans and exhaust hoods
Mainly check whether the installation and installation and use functions comply with the relevant standards. 7.8 Inspection of the inlet and exhaust ports
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Mainly check whether the installation, installation location and size comply with the relevant standards. 7.9 In addition to the above inspection, the product manual Items required to be inspected should also be qualified. 7.10 After passing the above inspection, the burning appliance can be put into operation. 7.11 Burning appliances that are not installed in accordance with this standard are illegal and must not be ventilated. 8 Use and maintenance www.bzxz.net
Users must use and maintain burning appliances according to the usage instructions and precautions indicated in the instruction manual and nameplate. 8.1
8.2 When using burning appliances, users must ensure ventilation in the room. 8.3 When using a direct-discharge water heater, the user must turn on the exhaust fan for forced exhaust (in the case of an effective air inlet). When there is a power outage or the exhaust fan fails, users must open windows for natural ventilation. 8.4 After using the burning appliance, the valves on the gas and water inlet pipes must be closed. 8.5 When the gas appliance appears to be leaking, leaking, the flame does not go out after the water is stopped (water heater), or the combustion conditions are poor (fire, backfire, yellow flame), etc., it should be stopped and the gas management department should be notified in time for repair. It is strictly prohibited to do so without permission. Disassembly and repair. 8.6 After receiving the notice of repair of the gas appliance, the gas management department should send someone to repair it within 24 hours. 8.7 The operating instructions for burning appliances should include provisions and precautions that remind users to report for regular inspections. The modification sheet No. 1 of GB16914-1997 General Safety Technical Principles for Gas Burning Appliances was approved by the State Bureau of Quality and Technical Supervision on August 17, 1998 in the form of Quality and Technical Supervision National Standard Letter [1998] No. 081. Since January 1999 It will be implemented from January 1st.
1. Change the content in line 4 of Article 6.6.2.1: "When the building does not have a flue, other reliable smoke exhaust facilities must be installed." Change to "When the building does not have a flue, it must be installed Smoke exhaust facilities that meet any of the following requirements: a. Installed in a compartment that opens to the outside, and there should be an intake and exhaust port in the compartment; b. Set up with a smoke exhaust hood, fan and exhaust. Mechanical ventilation device for the cylinder; c. Set up mechanical ventilation equipment with linkage devices for burning appliances and ventilation fans. ”801
3. The size and position of the air inlet and exhaust port. When the semi-closed natural exhaust burning appliance is installed indoors. An air inlet larger than the cross-sectional area of ??the exhaust pipe should be provided. For burning appliances with heat flow greater than 6.4kW (5500kcal/h), or when the gas consumption of 1m2 room area is greater than 7.4kW (6400kcal/h), in addition to the air inlet, an exhaust port should also be provided on the upper part. The size of the exhaust port and exhaust port should be larger than the cross-sectional area of ??the exhaust pipe. Both the air inlet and the exhaust port should be installed in locations directly connected to the atmosphere. 6.6.3 Semi-closed forced exhaust type burning appliances
6.6.3.1 The safety device of semi-closed forced exhaust type burning appliances should ensure that when the exhaust fan stops, the gas can be automatically cut off and will not start again. 6.6.3.2 The exhaust capacity of the fan should be able to overcome the resistance of the exhaust pipe and the outdoor wind pressure. For a heat flow of 1kW (860kcal/h) of the burning appliance, the exhaust capacity should be greater than 2.8m2/h ( room temperature). GB 169141997
When the exhaust hood is in the wind pressure zone, the exhaust pressure of the fan should be greater than 80Pa. When it is not in the wind pressure zone, it should be greater than 20Pa. 6.6.3.3 The diameter of the exhaust pipe, the number of elbows and the length of the exhaust pipe should be selected within the range to ensure that the exhaust capacity of the fan meets the requirements of 6.6.3.2.
6.6.3.4 The area of ??the air inlet should be larger than the effective cross-sectional area of ??the exhaust pipe, and the available door and window gaps can be used as air inlets. 6.6.4 Closed burning appliances
6.6.4.1 Installation of balanced wall-mounted burning appliances
Balanced wall-mounted burning appliances should be installed on the outer wall that is directly connected to the atmosphere, and the air supply and exhaust pipes should be installed In a space and location where smoke does not remain trapped. 6.6.4.2 Installation of shared flue-type burning appliances
The burning appliances using the shared flue should be those that have passed the test and are allowed to be used on the shared flue (appliances that burn under low oxygen concentrations).
Closed burning appliances with forced air supply and exhaust shall not be installed on the common flue. When burning appliances installed on a shared flue use gas that is heavier than air, the flue should have safety measures to prevent gas leakage. 6.7 Installation of public burning appliances
6.7.1 Large brick stoves should have a furnace, flue (annular), explosion-proof door, stove door and secondary air inlet. 6.7.2 When public burning appliances such as brick cooking stoves and ovens are built with furnaces and flues, they should also comply with the provisions of 6.7.1. 6.7.3 For direct-discharge public burning appliances, an exhaust hood should be installed on the upper part or an exhaust fan should be installed on the upper part of the exterior wall. 6.8 Installation of gas leak alarms
6.8.1 When installing gas leak alarms in locations where burning appliances are used, the following regulations should be met: a) It should be installed in the same room as the burning appliances;
b) It should be installed in a place where gas is easy to accumulate and where maintenance is easy. 6.8.2 The installation location of the gas leak alarm should comply with the following regulations: a) When the gas is lighter than the air, the alarm should be installed within 8m horizontally from the burning appliance and less than 30cm from the ceiling; b) When the gas is lighter than the air In heavy cases, the alarm should be installed within 4m of the horizontal distance from the burning appliance and less than 30cm from the ground. 6.8.3 Users who install burning appliances should install outdoor alarm buzzers. The buzzer should be installed in a place such as an outdoor door where it is easy to be noticed and heard by neighbors, and there should be no water leakage there. 7 Inspection and acceptance
7.1 The installed burning appliances shall comply with the provisions of Chapters 1 to 6. 7.2 The type and pressure of gas, as well as the water supply pressure of tap water, should comply with the requirements on the nameplate and instructions of the burning appliance. 7.3 Open the gas pipeline valve, close the gas valve of the burning appliance, and use soap solution or a leak detector to check the gas pipeline and joints. There should be no air leakage.
7.4 Open the tap water valve and the cold water inlet valve of the water heater, close the hot water outlet valve of the water heater, and visually check that there should be no water leakage in the tap water system.
7.5 According to the requirements of the operating instructions of the burning appliance, the burning appliance should be operated. The burner should burn normally and the switches of various valves should be flexible. 7.6 Flue suction force inspection
When the burning appliance is running, use a compensated micro-pressure gauge to measure it at the outlet of the safety exhaust hood (anti-backdraft hood). The flue suction force (vacuum degree) of civilian burning appliances shall not be less than 3Pa (0.3mmH20): the flue suction force (vacuum degree) of public burning appliances shall not be less than 10 Pa (1 mmH,0).
If there is no instrument, paper strips or smoking objects can be used for visual inspection. There should be suction force. 7.7 Inspection of exhaust fans and exhaust hoods
Mainly check whether the settings and installation and use functions comply with relevant standards. 7.8 Inspection of the intake and exhaust ports
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Mainly check whether the installation, installation location and size comply with the relevant standards. 7.9 In addition to the above inspection, the product manual Items required to be inspected should also be qualified. 7.10 After passing the above inspection, the burning appliance can be put into operation. 7.11 Burning appliances that are not installed in accordance with this standard are illegal and must not be ventilated. 8 Use and maintenance
Users must use and maintain burning appliances according to the usage instructions and precautions indicated in the instruction manual and nameplate. 8.1
8.2 When using burning appliances, users must ensure ventilation in the room. 8.3 When using a direct-discharge water heater, the user must turn on the exhaust fan for forced exhaust (in the case of an effective air inlet). When there is a power outage or the exhaust fan fails, users must open windows for natural ventilation. 8.4 After using the burning appliance, the valves on the gas and water inlet pipes must be closed. 8.5 When the gas appliance appears to be leaking, leaking, the flame does not go out after the water is stopped (water heater), or the combustion conditions are poor (fire, backfire, yellow flame), etc., it should be stopped and the gas management department should be notified in time for repair. It is strictly prohibited to do so without permission. Disassembly and repair. 8.6 After receiving the notice of repair of the gas appliance, the gas management department should send someone to repair it within 24 hours. 8.7 The operating instructions for burning appliances should include provisions and precautions that remind users to report for regular inspections. The modification sheet No. 1 of GB16914-1997 General Safety Technical Principles for Gas Burning Appliances was approved by the State Bureau of Quality and Technical Supervision on August 17, 1998 in the form of Quality and Technical Supervision National Standard Letter [1998] No. 081. Since January 1999 It will be implemented from January 1st.
1. Change the content in line 4 of Article 6.6.2.1: "When the building does not have a flue, other reliable smoke exhaust facilities must be installed." Change to "When the building does not have a flue, it must be installed Smoke exhaust facilities that meet any of the following requirements: a. Installed in a compartment that opens to the outdoors, and there should be an inlet and exhaust port in the compartment; b. Set up with a smoke exhaust hood, fan and exhaust. Mechanical ventilation device for the cylinder; c. Set up mechanical ventilation equipment with linkage devices for burning appliances and ventilation fans. ”801
3. The size and position of the air inlet and exhaust port. When the semi-closed natural exhaust burning appliance is installed indoors. An air inlet larger than the cross-sectional area of ??the exhaust pipe should be provided. For burning appliances with heat flow greater than 6.4kW (5500kcal/h), or when the gas consumption of 1m2 room area is greater than 7.4kW (6400kcal/h), in addition to the air inlet, an exhaust port should also be provided on the upper part. The size of the exhaust port and exhaust port should be larger than the cross-sectional area of ??the exhaust pipe. Both the air inlet and the exhaust port should be installed in locations directly connected to the atmosphere. 6.6.3 Semi-closed forced exhaust type burning appliances
6.6.3.1 The safety device of semi-closed forced exhaust type burning appliances should ensure that when the exhaust fan stops, the gas can be automatically cut off and will not start again. 6.6.3.2 The exhaust capacity of the fan should be able to overcome the resistance of the exhaust pipe and the outdoor wind pressure. For a heat flow of 1kW (860kcal/h) of the burning appliance, the exhaust capacity should be greater than 2.8m2/h ( room temperature). GB 169141997
When the exhaust hood is in the wind pressure zone, the exhaust pressure of the fan should be greater than 80Pa. When it is not in the wind pressure zone, it should be greater than 20Pa. 6.6.3.3 The diameter of the exhaust pipe, the number of elbows and the length of the exhaust pipe should be selected within the range to ensure that the exhaust capacity of the fan meets the requirements of 6.6.3.2.
6.6.3.4 The area of ??the air inlet should be larger than the effective cross-sectional area of ??the exhaust pipe, and the available door and window gaps can be used as air inlets. 6.6.4 Closed burning appliances
6.6.4.1 Installation of balanced wall-mounted burning appliances
Balanced wall-mounted burning appliances should be installed on the outer wall that is directly connected to the atmosphere, and the air supply and exhaust pipes should be installed In a space and location where smoke does not remain trapped. 6.6.4.2 Installation of shared flue-type burning appliances
The burning appliances using the shared flue should be those that have passed the test and are allowed to be used on the shared flue (appliances that burn under low oxygen concentrations).
Closed burning appliances with forced air supply and exhaust shall not be installed on the common flue. When the gas used by the burning appliances installed on the shared flue is heavier than air, the flue should have safety measures to prevent gas leakage. 6.7 Installation of public burning appliances
6.7.1 Large brick stoves should have a furnace, flue (annular), explosion-proof door, stove door and secondary air inlet. 6.7.2 When public burning appliances such as brick cooking stoves and ovens are built with furnaces and flues, they should also comply with the provisions of 6.7.1. 6.7.3 For direct-discharge public burning appliances, an exhaust hood should be installed on the upper part or an exhaust fan should be installed on the upper part of the exterior wall. 6.8 Installation of gas leak alarm
6.8.1 When installing a gas leak alarm in a location where burning appliances are used, the following regulations should be met: a) It should be installed in the same room as the burning appliance;
b) It should be installed in a place where gas is easy to accumulate and where maintenance is easy. 6.8.2 The installation location of the gas leak alarm should comply with the following regulations: a) When the gas is lighter than the air, the alarm should be installed within 8m horizontally from the burning appliance and less than 30cm from the ceiling; b) When the gas is lighter than the air In heavy cases, the alarm should be installed within 4m of the horizontal distance from the burning appliance and less than 30cm from the ground. 6.8.3 Users who install burning appliances should install outdoor alarm buzzers. The buzzer should be installed in a place such as an outdoor door where it is easy to be noticed and heard by neighbors, and there should be no water leakage there. 7 Inspection and acceptance
7.1 The installed burning appliances shall comply with the provisions of Chapters 1 to 6. 7.2 The type and pressure of gas, as well as the water supply pressure of tap water, should comply with the requirements on the nameplate and instructions of the burning appliance. 7.3 Open the gas pipeline valve, close the gas valve of the burning appliance, and use soap solution or a leak detector to check the gas pipeline and joints. There should be no air leakage.
7.4 Open the tap water valve and the cold water inlet valve of the water heater, close the hot water outlet valve of the water heater, and visually check that there should be no water leakage in the tap water system.
7.5 According to the requirements of the operating instructions of the burning appliance, the burning appliance should be operated. The burner should burn normally and the switches of various valves should be flexible. 7.6 Flue suction force inspection
When the burning appliance is running, use a compensated micro-pressure gauge to measure it at the outlet of the safety exhaust hood (anti-backdraft hood). The flue suction force (vacuum degree) of civilian burning appliances shall not be less than 3Pa (0.3mmH20): the flue suction force (vacuum degree) of public burning appliances shall not be less than 10 Pa (1 mmH,0).
If there is no instrument, paper strips or smoking objects can be used for visual inspection. There should be suction force. 7.7 Inspection of exhaust fans and exhaust hoods
Mainly check whether the installation and installation and use functions comply with the relevant standards. 7.8 Inspection of the inlet and exhaust ports
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Mainly check whether the installation, installation location and size comply with the relevant standards. 7.9 In addition to the above inspection, the product manual Items required to be inspected should also be qualified. 7.10 After passing the above inspection, the burning appliance can be put into operation. 7.11 Burning appliances that are not installed in accordance with this standard are illegal and must not be ventilated. 8 Use and maintenance
Users must use and maintain burning appliances according to the usage instructions and precautions indicated in the instruction manual and nameplate. 8.1
8.2 When using burning appliances, users must ensure ventilation in the room. 8.3 When using a direct-discharge water heater, the user must turn on the exhaust fan for forced exhaust (in the case of an effective air inlet). When there is a power outage or the exhaust fan fails, users must open windows for natural ventilation. 8.4 After using the burning appliance, the valves on the gas and water inlet pipes must be closed. 8.5 When the gas appliance appears to be leaking, leaking, the flame does not go out after the water is stopped (water heater), or the combustion conditions are poor (fire, backfire, yellow flame), etc., it should be stopped and the gas management department should be notified in time for repair. It is strictly prohibited to do so without permission. Disassembly and repair. 8.6 After receiving the notification of repair of the burning appliance, the gas management department should send someone to repair it within 24 hours. 8.7 The operating instructions for burning appliances should include provisions and precautions that remind users to report for regular inspections. The modification sheet No. 1 of GB16914-1997 General Safety Technical Principles for Gas Burning Appliances was approved by the State Bureau of Quality and Technical Supervision on August 17, 1998 in the form of Quality and Technical Supervision National Standard Letter [1998] No. 081. Since January 1999 It will be implemented from January 1st.
1. Change the content in line 4 of Article 6.6.2.1: "When the building does not have a flue, other reliable smoke exhaust facilities must be installed." Change to "When the building does not have a flue, it must be installed Smoke exhaust facilities that meet any of the following requirements: a. Installed in a compartment that opens to the outside, and there should be an intake and exhaust port in the compartment; b. Set up with a smoke exhaust hood, fan and exhaust. Mechanical ventilation device for the cylinder; c. Set up mechanical ventilation equipment with linkage devices for burning appliances and ventilation fans. ”801
3. For direct-discharge public burning appliances, an exhaust hood should be installed on the upper part or an exhaust fan should be installed on the upper part of the outer wall. 6.8 Installation of gas leak alarm
6.8.1 When installing a gas leak alarm in a location where burning appliances are used, the following regulations should be met: a) It should be installed in the same room as the burning appliance;
b) It should be installed in a place where gas is easy to accumulate and where maintenance is easy. 6.8.2 The installation location of the gas leak alarm should comply with the following regulations: a) When the gas is lighter than the air, the alarm should be installed within 8m horizontally from the burning appliance and less than 30cm from the ceiling; b) When the gas is lighter than the air In heavy cases, the alarm should be installed within 4m of the horizontal distance from the burning appliance and less than 30cm from the ground. 6.8.3 Users who install burning appliances should install outdoor alarm buzzers. The buzzer should be installed in a place such as an outdoor door where it is easy to be noticed and heard by neighbors, and there should be no water leakage there. 7 Inspection and acceptance
7.1 The installed burning appliances shall comply with the provisions of Chapters 1 to 6. 7.2 The type and pressure of gas, as well as the water supply pressure of tap water, should comply with the requirements on the nameplate and instructions of the burning appliance. 7.3 Open the gas pipeline valve, close the gas valve of the burning appliance, and use soap solution or a leak detector to check the gas pipeline and joints. There should be no air leakage.
7.4 Open the tap water valve and the cold water inlet valve of the water heater, close the hot water outlet valve of the water heater, and visually check that there should be no water leakage in the tap water system.
7.5 According to the requirements of the operating instructions of the burning appliance, the burning appliance should be operated. The burner should burn normally and the switches of various valves should be flexible. 7.6 Flue suction force inspection
When the burning appliance is running, use a compensated micro-pressure gauge to measure it at the outlet of the safety exhaust hood (anti-backdraft hood). The flue suction force (vacuum degree) of civilian burning appliances shall not be less than 3Pa (0.3mmH20): the flue suction force (vacuum degree) of public burning appliances shall not be less than 10 Pa (1 mmH,0).
If there is no instrument, paper strips or smoking objects can be used for visual inspection. There should be suction force. 7.7 Inspection of exhaust fans and exhaust hoods
Mainly check whether the settings and installation and use functions comply with relevant standards. 7.8 Inspection of the inlet and exhaust ports
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Mainly check whether the installation, installation location and size comply with the relevant standards. 7.9 In addition to the above inspection, the product manual Items required to be inspected should also be qualified. 7.10 After passing the above inspection, the burning appliance can be put into operation. 7.11 Burning appliances that are not installed in accordance with this standard are illegal and must not be ventilated. 8 Use and maintenance
Users must use and maintain burning appliances according to the usage instructions and precautions indicated in the instruction manual and nameplate. 8.1
8.2 When using burning appliances, users must ensure ventilation in the room. 8.3 When using a direct-discharge water heater, the user must turn on the exhaust fan for forced exhaust (in the case of an effective air inlet). When there is a power outage or the exhaust fan fails, users must open windows for natural ventilation. 8.4 After using the burning appliance, the valves on the gas and water inlet pipes must be closed. 8.5 When the gas appliance appears to be leaking, leaking, the flame does not go out after the water is stopped (water heater), or the combustion conditions are poor (fire, backfire, yellow flame), etc., it should be stopped and the gas management department should be notified in time for repair. It is strictly prohibited to do so without permission. Disassembly and repair. 8.6 After receiving the notice of repair of the gas appliance, the gas management department should send someone to repair it within 24 hours. 8.7 The operating instructions for burning appliances should include provisions and precautions that remind users to report for regular inspections. The modification sheet No. 1 of GB16914-1997 General Safety Technical Principles for Gas Burning Appliances was approved by the State Bureau of Quality and Technical Supervision on August 17, 1998 in the form of Quality and Technical Supervision National Standard Letter [1998] No. 081. Since January 1999 It will be implemented from January 1st.
1. Change the content in line 4 of Article 6.6.2.1: "When the building does not have a flue, other reliable smoke exhaust facilities must be installed." Change to "When the building does not have a flue, it must be installed Smoke exhaust facilities that meet any of the following requirements: a. Installed in a compartment that opens to the outdoors, and there should be an inlet and exhaust port in the compartment; b. Set up with a smoke exhaust hood, fan and exhaust. Mechanical ventilation device for the cylinder; c. Set up mechanical ventilation equipment with linkage devices for burning appliances and ventilation fans. ”801
3. For direct-discharge public burning appliances, an exhaust hood should be installed on the upper part or an exhaust fan should be installed on the upper part of the outer wall. 6.8 Installation of gas leak alarm
6.8.1 When installing a gas leak alarm in a location where burning appliances are used, the following regulations should be met: a) It should be installed in the same room as the burning appliance;
b) It should be installed in a place where gas is easy to accumulate and where maintenance is easy. 6.8.2 The installation location of the gas leak alarm should comply with the following regulations: a) When the gas is lighter than the air, the alarm should be installed within 8m horizontally from the burning appliance and less than 30cm from the ceiling; b) When the gas is lighter than the air In heavy cases, the alarm should be installed within 4m of the horizontal distance from the burning appliance and less than 30cm from the ground. 6.8.3 Users who install burning appliances should install outdoor alarm buzzers. The buzzer should be installed in a place such as an outdoor door where it is easy to be noticed and heard by neighbors, and there should be no water leakage there. 7 Inspection and acceptance
7.1 The installed burning appliances shall comply with the provisions of Chapters 1 to 6. 7.2 The type and pressure of gas, as well as the water supply pressure of tap water, should comply with the requirements on the nameplate and instructions of the burning appliance. 7.3 Open the gas pipeline valve, close the gas valve of the burning appliance, and use soap solution or a leak detector to check the gas pipeline and joints. There should be no air leakage.
7.4 Open the tap water valve and the cold water inlet valve of the water heater, close the hot water outlet valve of the water heater, and visually check that there should be no water leakage in the tap water system.
7.5 According to the requirements of the operating instructions of the burning appliance, the burning appliance should be operated. The burner should burn normally and the switches of various valves should be flexible. 7.6 Flue suction force inspection
When the burning appliance is running, use a compensated micro-pressure gauge to measure it at the outlet of the safety exhaust hood (anti-backdraft hood). The flue suction force (vacuum degree) of civilian burning appliances shall not be less than 3Pa (0.3mmH20): the flue suction force (vacuum degree) of public burning appliances shall not be less than 10 Pa (1 mmH,0).
If there is no instrument, paper strips or smoking objects can be used for visual inspection. There should be suction force. 7.7 Inspection of exhaust fans and exhaust hoods
Mainly check whether the installation and installation and use functions comply with the relevant standards. 7.8 Inspection of the inlet and exhaust ports
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Mainly check whether the installation, installation location and size comply with the relevant standards. 7.9 In addition to the above inspection, the product manual Items required to be inspected should also be qualified. 7.10 After passing the above inspection, the burning appliance can be put into operation. 7.11 Burning appliances that are not installed in accordance with this standard are illegal and must not be ventilated. 8 Use and maintenance
Users must use and maintain burning appliances according to the usage instructions and precautions indicated in the instruction manual and nameplate. 8.1
8.2 When using burning appliances, users must ensure ventilation in the room. 8.3 When using a direct-discharge water heater, the user must turn on the exhaust fan for forced exhaust (in the case of an effective air inlet). When there is a power outage or the exhaust fan fails, users must open windows for natural ventilation. 8.4 After using the burning appliance, the valves on the gas and water inlet pipes must be closed. 8.5 When the gas appliance appears to be leaking, leaking, the flame does not go out after the water is stopped (water heater), or the combustion conditions are poor (fire, backfire, yellow flame), etc., it should be stopped and the gas management department should be notified in time for repair. It is strictly prohibited to do so without permission. Disassembly and repair. 8.6 After receiving the notification of repair of the burning appliance, the gas management department should send someone to repair it within 24 hours. 8.7 The operating instructions for burning appliances should include provisions and precautions that remind users to report for regular inspections. The modification sheet No. 1 of GB16914-1997 General Safety Technical Principles for Gas Burning Appliances was approved by the State Bureau of Quality and Technical Supervision on August 17, 1998 in the form of Quality and Technical Supervision National Standard Letter [1998] No. 081. Since January 1999 It will be implemented from January 1st.
1. Change the content in line 4 of Article 6.6.2.1: "When the building does not have a flue, other reliable smoke exhaust facilities must be installed." Change to "When the building does not have a flue, it must be installed Smoke exhaust facilities that meet any of the following requirements: a. Installed in a compartment that opens to the outside, and there should be an intake and exhaust port in the compartment; b. Set up with a smoke exhaust hood, fan and exhaust. Mechanical ventilation device for the cylinder; c. Set up mechanical ventilation equipment with linkage devices for burning appliances and ventilation fans. ”801
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