CJ/T 3075.1-1998 Gas combustion equipment laboratory - Technical general rules
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Engineering Construction Standard Full-text Information System
Town Construction Industry Standard of the People's Republic of China CJ/T3075.1—1998
Laboratory of gas burning appliances General technique requirements Construction standard
Published on 1998-06-23
Implemented on 1998-11-01
Published by the Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
CJ/T3075.1—1998
Cited Standards
Laboratory Composition, Setting and Basic Conditions 5
Laboratory Location, Building and Public Facilities Gas Distribution Station and Gas Distribution System||tt ||Gas transmission pipeline:
Laboratory safety...
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) Inspection of gas storage containers, gas cylinders and other equipment Appendix A (Standard Appendix)
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CJ/T3075.1—1998
"Gas combustion equipment laboratory-Technical general rules" refers to the technical conditions necessary to meet product type inspection and factory inspection. The provisions of these general technical conditions can not only meet the needs of laboratory design and ensure the safety of the laboratory, but also meet the needs of product testing and promote the implementation of product standards.
This standard is proposed by the Standard and Quota Research Institute of the Ministry of Construction. This standard is under the jurisdiction of the China Municipal Engineering North China Design Institute, the technical unit responsible for urban gas standards of the Ministry of Construction.
The drafting units of this standard are: China Municipal Engineering North China Design Institute, Shandong Product Quality Supervision and Inspection Institute.
The main drafters of this standard are: Gao Yong, Liu Xiaowei. I
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Standards for Urban Construction of the People's Republic of China Gas Burning Appliances Laboratory - Technical General Requirements Laboratory of gas burning appliances General technique requirements 1 Scope
CJ/T3075.1—1998
This standard specifies the general technical requirements for urban gas burning appliances (referred to as appliances) laboratories.
This standard is applicable to laboratories for type inspection and factory inspection of appliances for civil and public buildings.
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the following latest versions. GB2894—82
2Safety signs
GB4962—85
GB7231—-87
Safety technical regulations for the use of hydrogen
Basic identification colors and symbols for industrial pipelinesCity gas classification
GB/T1361192
Urban gas design specifications
GB50028--93
GB50057 —94
GB50058—91
GB50209-95
Code for Lightning Protection Design of Buildings
Code for Design of Electrical Installations in Explosive and Fire Hazardous Environments Code for Construction and Acceptance of Building Ground Engineering
Approved by the Ministry of Construction of the People's Republic of China on 1998-06-23 Engineering Construction Standard Full-text Information System
Implementation on 1998-11-01
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GBJ16—87
Code for Fire Protection Design of Buildings (Revised Edition)
GBJ235—82
Code for Construction and Acceptance of Industrial Pipeline Engineering - Part 1 Metal Pipeline Part 3 General Provisions
3.1 This standard is formulated to ensure the safety and design quality of burning appliance laboratories and meet the needs of product type inspection and factory inspection. 3.2 The design of the fuel appliance laboratory shall meet the requirements of product testing functions, and shall actively adopt effective new processes, technologies, materials and equipment based on the continuous summary of production, construction and scientific experiments, so as to achieve advanced technology and economic rationality. 3.3 The design of the fuel appliance laboratory, for the contents not specified in this standard, shall still comply with the provisions of the relevant national standards and specifications.
Laboratory composition, settings and basic conditions 4
4.1 Laboratory composition
4.1.1 Thermal engineering laboratory
The thermal engineering laboratory should meet the following inspection items specified in the product standards: a) Gas passage airtightness;
b) Gas consumption (heat flow);
c) Combustion state (flame stability, yellow flame, carbon deposition, CO content, noise, smoke exhaust, etc.);
d) Electric ignition performance;
e) Safety device performance;
f) Insulation performance;
g) Electrical component performance;
h) Automatic control device performance;
i) Usage performance, etc.
4.1.2 Comprehensive laboratory
The comprehensive laboratory shall meet the following inspection items specified in the product standards: a) structural performance,
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b) heat resistance of components;
c) material performance;
d) durability, etc.
4.1.3 Gas analysis laboratory
shall analyze fuel gas and flue gas according to relevant standards. 4.1.4 Gas distribution station (room)
shall prepare fuel gas for product type inspection and factory inspection according to relevant standards. Basic conditions of the laboratory
4.2.1 Gas for testing
4.2.1.1 Commercial gas
The commercial gas supply in the laboratory shall meet the following requirements: a) Commercial propylene (CH), propane (CHg), and butane (C, Ho) shall be available, and their purity shall comply with the provisions of 4.5.1 of GB/T13611-92; when a mixture of commercial propane and butane (ordinary liquefied petroleum gas) is used, an evaporator gasification gas supply system shall be installed. b) Natural gas and artificial gas shall be directly introduced into the laboratory through pipelines. When the combustion characteristics of the gas do not meet the requirements, a gas distribution device shall be installed for distribution. 4.2.1.2 Prepared gas
The characteristics of the prepared gas in the laboratory shall comply with the provisions of 6.3.2 of this standard. 4.2.2 Equipment and instruments for testing
The laboratory shall have a gas distribution device and testing equipment and instruments for items specified in product standards.
5 Laboratory location, buildings and public facilities 5.1 Location
The location of the laboratory should be determined based on the floor area of the testing station (room) and gas distribution station (room), the surrounding environment, the layout of the gas pipeline and other factors, and should meet the following conditions:
a) The location of the laboratory should meet the requirements of the relevant safety standards. b) The laboratory should have a good orientation and be conducive to natural ventilation and lighting. 3
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The laboratory shall not be located in the basement, semi-basement and other places with poor ventilation.
d) The thermal engineering laboratory for testing public fuel appliances such as large cooking gas stoves and Chinese gas cooking stoves should be located on the first floor of the building.
e) The location of the laboratory should take into account the convenience of water supply, drainage, power supply and gas supply.
f) The laboratory should consider the possibility of expansion. Building
The building design of the laboratory should be based on the principles of safety, applicability, economy, and pay attention to aesthetics under possible conditions, meet the requirements of process design, ensure the convenience of equipment and pipeline installation, operation and maintenance, and also meet the following requirements: a) The building form and structure should be conducive to anti-poison and explosion-proof. 1) Good ventilation conditions, and lattice walls or shutters should be set in places where gas is likely to gather.
2) A pressure relief surface should be set. Lightweight roofs, walls and doors and windows that are easy to relieve pressure in the laboratory with a deadweight of no more than 120kg/m can be used as pressure relief surfaces. 3) The net height should be greater than 3.4m.
b) Other requirements for laboratory building design: 1) The doors and windows of the laboratory should open outwards, and the laboratory should have a door that can pass the largest equipment under test.
2) The laboratory should take insulation and cold protection measures according to the specific conditions of the region.
5.3 Heating and ventilation
5.3.1 Heating
The heating temperature can adopt the following values:
a) Testing room: 16~18℃
b) Other rooms where people often operate: should be greater than 12℃; c) Places where people do not often operate: should be greater than 5℃. 5.3.2 Ventilation
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The laboratory should have natural ventilation and mechanical ventilation facilities. The ventilation facilities should ensure that the smoke generated by the burning appliances and the gas leaked by the equipment are discharged to the outdoors in time. The ventilation frequency of the ventilation facilities should meet the following regulations:
a) Natural ventilation: should be greater than 3 times/h.
b) Mechanical ventilation: should be greater than 10 times/h.
5.4 Electricity and lighting
5.4.1 Electricity
a) When the laboratory is not allowed to interrupt the experiment, there should be two circuits of power supply. b) Centrally controlled compressors, blowers, exhaust fans, water pumps and other electric equipment should be equipped with two sets of control switches, one set installed near the equipment and the other set installed on the centralized control panel.
c) Various process signals and automatic control facilities in the laboratory must ensure safe operation. The voltage and frequency connected to various electrical equipment and instruments should meet the requirements of the product. d) Laboratory power equipment, except for special requirements, generally adopts ordinary models. 5.4.2 Lighting
a) In the storage room of flammable gas cylinders such as liquefied petroleum gas, hydrogen, and methane gas, the flammable gas preparation room, and the non-continuously operating test room, at least one explosion-proof lamp should be installed; its switch should be installed at the outdoor entrance.
b) Fluorescent lamps should be used as the light source for laboratory lighting. c) The voltage of portable lamps used in the laboratory should not exceed 36V. 5.5 Lighting
5.5.1 The light in the laboratory should be emitted from the left side of the seat. 5.5.2 The interior surface of the laboratory should be decorated in light colors. 5.6 Water supply, drainage, fire protection
5.6.1 General provisions
General water supply, drainage and fire protection facilities in the laboratory shall meet the following requirements: a) Generally, only one water supply pipe is laid in the laboratory, but when the laboratory does not allow any interruption of water supply, two water supply mains should be laid to supply water to the laboratory. b) The high-temperature drainage of the laboratory should reduce the water temperature to below 40°C before it can be discharged into the external drainage pipe. Generally, the cold water mixing method is used to reduce the water temperature. The laboratory should be equipped with fire hydrants, fire extinguishers and other fire protection facilities. Fire water generally uses the water in the laboratory water supply pipe. When the water supply pipe cannot meet the fire water requirements, a fire water pipe should be set up separately.
5.6.2 Special water supplybzxZ.net
The gas appliance laboratory shall be equipped with water supply facilities that meet the following requirements: a) Water for water flow calorimeter testing
A 0.3~0.5m2 normal pressure and normal temperature high-level water tank water supply system shall be set up. b) Water for instantaneous water heater testing
It is advisable to use a water pump to increase the pressure, a pressure reducer to adjust and stabilize the pressure, and it can simultaneously supply 0.5MMPa and 0.1MPa pressure water for testing.
Gas distribution station and gas distribution system
6.1 General provisions
6.1.1 The gas distribution station and gas distribution system specified in this standard are only applicable to the type inspection and factory inspection of gas appliances.
6.1.2 The type of gas distribution station and the selection of gas distribution equipment shall be determined after comprehensive comparison of factors such as gas consumption, gas supply conditions, and surrounding environment. 6.2 Gas distribution station
6.2.1 The general layout of the gas distribution station in the factory area shall meet the following requirements: a) It should be arranged at the edge of the factory area, in a location with convenient vehicle access, and as close to the main gas consumption location as possible.
b) It shall not be arranged in the basement, semi-basement and poorly ventilated places of the building.
c) It should be set up independently, and it is advisable to use a scattered or semi-knocked-open type factory building. d) In non-heating areas, the gas distribution station shall be arranged in the following ways and requirements: 1) It should be set up in the open air, but there should be facilities to shelter from rain, sun and prevent overheating and cooling, and a fence should be set up.
2) It should be set up in a knocked-open or semi-opened independent building. 6
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3) When it is set up adjacent to other buildings, it shall meet the requirements of 1) in e) of this article. e) It should be arranged in an independent single-story building on the ground in the heating area. When it is difficult to set up independently, it can also be set up in a building that meets the following requirements: 1) It can be adjacent to a gas-using plant with a fire resistance rating of not less than Level 2 or a Class D or E plant with a fire resistance rating of not less than Level 2 for non-open flame operations, but the adjacent wall should be a fire wall without doors, windows, or openings. The distance between the door and window openings of the two should not be less than 6m.
2) It can be set up near the outer wall of a single-story plant with a fire resistance rating of not less than Level 2 or near the outer wall of the top floor of a multi-story plant. Equipment with explosion hazards should be arranged away from load-bearing components such as beams and columns of the plant as much as possible. f) The storage room for liquefied petroleum gas, hydrogen, and nitrogen should be located in a knock-down or semi-dispersed building adjacent to the room specified in e). g) Offices and rest rooms should not be set up in the gas distribution station. If they must be set up, they should be implemented in accordance with Article 3.4.8 of GBJ16-87. 6.2.2 The building design of the gas distribution station shall comply with the following provisions: a) The fire resistance rating of the building shall not be less than Level 2. b) The liquefied petroleum gas cylinder group room, hydrogen and nitrogen cylinder group room, compressed air room, gas distribution and mixing room, and other auxiliary rooms should all be set up as independent rooms, and should have doors directly leading to the outside. The rooms should be separated by solid walls, and their design should meet the following requirements: 1) The thickness of the partition wall should not be less than 24cm, and it should be plastered on both sides. 2) Flues and ventilation equipment should not be set up in the partition wall. 3) When there is a pipeline passing through the partition wall, a sleeve should be set up, and the two ends of the sleeve should be sealed with packing.
4) Other walls should not be equipped with flues.
c) The doors and windows of the gas distribution station room should open outwards, and the windows should be equipped with guardrails and protective nets. When the door is made of wooden materials, it should be covered with iron sheets or other fireproof materials. d) The gas distribution station should be equipped with a protective fence.
e) The floor of the building should be made of materials that will not produce sparks, and its technical requirements should meet the requirements of GB50209. The ground should be 10cm higher than the surrounding ground. 7
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fBuildings should take pressure relief measures, and their design should comply with the provisions of GBJ16. g) The room should have good natural ventilation and mechanical ventilation facilities, and should meet the following requirements:
1) When mechanical ventilation is used, the ventilation volume per square meter of the ground should not be less than 0.5m/(m·min), and explosion-proof exhaust fans should be selected. 2) When natural ventilation is used, the total area of vents per square meter of the ground should not be less than 300cm2/m2, and the effective area should be calculated when blinds are set. There should be no less than 2 vents in the room, the hydrogen cylinder room should be set close to the ceiling, the liquefied petroleum gas room should be set close to the ground, and the mixing room should be set close to the ceiling and the ground respectively.
h) The explosion-proof level of electrical appliances in buildings shall comply with the provisions of GB50058-911 "zone 2" design.
i) Gas distribution stations shall have lightning protection and anti-static measures, and shall comply with the following provisions: 1) The lightning protection level of gas distribution stations shall comply with the "second category" design provisions of GB50057-94; the impact grounding resistance of the lightning protection grounding device shall be less than 102. 2) The electrostatic grounding design of the gas distribution station shall be carried out in accordance with the provisions of relevant standards: the grounding resistance of the electrostatic grounding body shall be less than 1002. When the metal conductor is connected to the grounding system such as lightning protection and electrical protection grounding (zero), no special electrostatic grounding measures may be taken. 6.2.3 The ambient temperature of the gas distribution station site shall meet the following requirements: a) The temperature between bottle groups, compressed air rooms, and gas distribution and mixing rooms should be kept consistent. b) When liquefied petroleum gas or other wet fuel gas or wet gas is used for gas distribution, it should not be lower than 0°C and should not be higher than 45°C.
6.2.4 When the indoor temperature of the gas distribution station cannot meet the requirements of 6.2.3 of this standard, it is strictly prohibited to use open fire for heating in the gas distribution station, but central heating can be used or a heating system can be installed in the gas distribution station, and its design should meet the following requirements: a) The heating boiler can be installed in a room adjacent to the raw gas room or the gas distribution and mixing room, but the adjacent wall must be a fire wall without doors, windows or openings. The doors and windows of the raw gas room or the gas distribution and mixing room and the doors and windows of the boiler room should not be set on the same side of the building.
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b) The heating system should adopt hot water circulation type. The exhaust temperature of the heating boiler smoke window is strictly prohibited to be greater than 300℃; the horizontal distance between the smoke outlet and the gas vent pipe outlet should be greater than 5m. c) The gas heating boiler should have a flameout protection device or a dedicated person on duty for management. 6.2.5 The storage capacity of flammable gas in the gas distribution station shall meet the following requirements: a) The total volume of liquefied petroleum gas cylinders shall be less than 1m (8 bottles of 50kg); b) The number of hydrogen cylinders shall be less than 60; c) The total amount of gas in high-pressure tanks (bottles) or low-pressure tanks shall not exceed 20m; d) When the storage capacity of flammable gas exceeds the above provisions, the gas distribution station shall be designed in accordance with the "fire protection distance" specified in GB50028-93, GB4962-85 and GBJ16-87. 6.3 Gas distribution system
6.3.1 The selection of gas distribution devices shall meet the following requirements: a) Continuous gas distribution devices should be used for product production line inspection; b) Intermittent gas distribution devices should be used for product laboratory performance inspection. 6.3.2 The performance of the gas distribution device shall meet the following requirements: a) Gas distribution accuracy
Production line Inspection: Wobbe number W fluctuation range ±10%; Laboratory performance inspection: Wobbe number W fluctuation range ±2%. b) Gas distribution volume
Should meet the inspection needs. Continuous gas distribution is generally not less than 20m/h; intermittent gas distribution is generally not less than 10m/time.
c) Gas distribution type and pressure
The type and pressure of gas distribution should meet the inspection needs, and it should be easy to switch when changing the type of gas.
The types of test gas to be prepared should include boundary gas. 6.3.3 The process design of the gas distribution device shall meet the following requirements: a) It should be able to adapt to the raw gas specified in 6.3.4 of this standard; it should be able to prepare urban gas and non-urban gas. The gas distribution performance should comply with the provisions of 6.3.2 of this standard. 9
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