GB/T 14088-1993 Technical requirements for marine halogenated fire extinguishing systems
Some standard content:
UC 629. 12 : 614. 844
National Standard of the People's Republic of China
GB/T 14088- 93
Marine halon fire extinguishing systemtechnical specifications
Published on January 9, 1993
State Administration of Technical Supervision
Implemented on October 1, 1993
W.National Standard of the People's Republic of China
Marine halon fire extinguishing systemtechnical specifications 1 Subject content and scope of application GR/T14088-93 This standard specifies the technical conditions for marine halogenated 1211 (difluoro-chloro-bromo-methane and 1301 (trifluoro-bromo-methane) fire extinguishing systems (hereinafter referred to as marine halogenated 1211 fire extinguishing systems). This standard is applicable to the halogenated 1211 fire extinguishing systems in the machinery spaces, cargo pump rooms, electronic equipment rooms and loading spaces where no cargo is loaded on various types of ships. And Gangdaiyuan 13GI fire system. Other places can refer to it. 2 Reference standards
G4065 Difluoro-1-bromomethane fire extinguishing agent
GB17:7 General technical parts of fire alarm controller GB6051 Trifluoromonobromomethane fire extinguishing agent (130t fire extinguishing agent) GB9193 Ship sound and light alarm signal and identification mark GB/T14G89 Ship halogenated fire extinguishing device
GBJ110 Halogenated environment 1211 Fire extinguishing system design specification 3 Terms
3.1 Flooding system
A system that sprays halogenated fire extinguishing agent in a fixed and closed protected space to make the extinguishing agent vapor reach an appropriate concentration. 3.2 Partial application system
A system that sprays halogenated fire extinguishing agent in a local area with a high risk of fire to make the extinguishing agent vapor reach an appropriate concentration. 3.3 Independent distribution system
A halogenated fire extinguishing system that protects a protected space is called an independent distribution system. 3.4 Combined distribution system
A halogenated fire extinguishing system that protects a protected space is called an independent distribution system. The fire fighting system is used to protect a group of protected places, which is called the combined distribution system. 3.5 Mixed distribution system
This combination of independent distribution systems provides a second protection for the protected places, which is called the mixed distribution system. 4 Technical requirements
4.1 General requirements
4.1.1 Marine nitrate fire extinguishing system should be able to work normally under the following environmental conditions: 2, the ambient temperature is -10 ~ +55, and the monitoring device should be able to withstand the air temperature of 7) in operation without malfunctioning within 2h. Relative humidity 95% + 3% with condensation
Approved by the State Bureau of Technical Supervision on January 9, 1993 and implemented on October 1, 1993
W. Tilt and swing
Tilt angle: pitch +10%, roll +122.5%; swing
Pitch +10°, roll +22.5%;
Rated frequency 2~80Hz
GB/T 14088-93
Of which, when the frequency is 2~13 Hz, the displacement amplitude is ±1mml
When the frequency is 13.2~80Hz, the acceleration amplitude is +0.7gt; It should be able to adapt to the normal environmental conditions of general ships and not be affected by salt spray, oil mist, mildew, etc. The halogenated fire extinguishing system for ships should be able to operate normally under the corresponding environmental conditions. 4.1.2 Types of halogenated fire extinguishing systems
According to the application occasion, they are divided into two types: full-scale system and local application system; the direct distribution method is divided into three types: independent distribution system, combined distribution system and combined distribution system. 4.1.3 Composition and basic functions of halogenated fire extinguishing system The halogenated fire extinguishing system is generally composed of monitoring devices, containers with fire extinguishing agents, check valves, and weak-water pipe systems. Its basic functions are shown in Table 1.
Fire depth alarm
Pre-alarm
Fire extinguishing agent application On-the-spot alarm
Fire extinguishing agent container busy sensing monitoring
Monitoring device failure alarm
Fire operation
Fire extinguishing agent liquid injection time, x
Release reverse alarm
Rotation status display
Time-controlled ship pressure release
Integrated medical release alarm
Main and auxiliary power supply first power supply
Output and input line alarm
Automatic operation
Electric (electric detonation)bzxZ.net
Manpower and machinery
For ships of 1 000 gross tonnage and below, the functional requirements of the basic emergency control device can be appropriately studied. 4.1.4 Life safety guarantee
Force
In one
≤20 (or special requirements)
4. 1.4. 1 For protected places where people are often present, the volume concentration of fire extinguishing agent shall not be greater than 5% for 1211 and 7% for 1301.
4.1.4.2 Sound and light warning facilities for the imminent release of fire extinguishing agent shall be provided to ensure the rapid and safe evacuation of personnel and meet the following requirements: B
Before the release of the alkyl extinguishing agent from its container, the sound of the handshake before the release of the extinguishing agent shall be a continuous sound signal code, and the personnel in the protected place shall be able to hear any tolerable noise b.
W.bzsoso：comGB/1 14088-93
In case of sound, it can be heard at any accessible position; the light is a blue revolving light; c. The noise intensity in the protected space is too high; when the alarm does not meet the requirements of 1.1.4.2 b, with the consent of the competent department, only light alarm facilities can be used, but the light signal emitted by it should be easy for the staff who frequently enter the protected space to find it at any position in the protected space.
4.1.4.3 There should be an alarm device for the release of fire extinguishing agent, and its sound and light should be clearly different from 4.1.4.2 b. In addition to the main power supply, the alarm and lighting facilities of 4.1.4.4, 1.4.2~4.1, 4.3 should also have an emergency power supply. 4.1.5 Monitoring device
4.1.5.1 The monitoring device should generally have the following basic functions: a. Power supply for fire detectors
b. Receive fire signals from fire detectors (or manual alarms) and send out sound and light alarm signals to indicate the location of the fire and maintain the signal until it is manually restored:
Signal:
Receive information from pressure transmitters for various purposes and send signals in accordance with 4.1.4.2 and 4.1.4. 3. The sound and light indication required by 4.1.4.4 can provide power supply or control signal of sound and light alarm facilities for fire extinguishing agent release; d.
e. "Can shut down fans and oil pumps, etc.:
f. Monitor and alarm for possible system failures, such as power failure of main power supply or emergency power supply, disconnection of output and input lines, etc., and its sound and light signals are clearly different from fire alarm signals. 4.1.5.2 The electrical equipment of the monitoring device shall have at least two sets of power supplies, one of which shall be the emergency power supply. The power supply shall adopt a dedicated independent feeder line. When the main power supply fails, the emergency power supply shall be automatically connected. When the main power supply is restored, the emergency power supply shall be automatically disconnected. 4.1.5.3 The monitoring device shall be of self-detection type and can be tested at any time. 4.1.6 Halon fire extinguishing agent supply
4.1 .6.1 The weight of halogenated fire extinguishing agent carried by each protected space can be calculated according to the following formula: c
Wherein: W-
weight of fire extinguishing agent in the protected space, kg;
designed volume of halogenated fire extinguishing agent, m; V...volume of the protected space, m\;
——specific volume of halogenated fire extinguishing agent vapor, m/kg; for \1211\, it is calculated as μ=0.14m/kg; for \1301\, it is calculated as μ=0.16m2/kg.
The fire dose calculated by this formula includes the fire dose that may be lost due to the increase in air pressure in the protected space when the fire agent is released. The weight of halogenated fire extinguishing agent 1211 and 1301 is calculated according to the volume ratio. The required weight for each cubic meter of cabin volume (including cabin cover volume) of the machinery space, the volume concentration should be calculated according to Table 2 Table 2
Halogenated hydrocarbons
Liquidity calculated by total volume
(Minimum volume concentration)
Concentration calculated by net volume
(Maximum volume concentration)
In the engine room of an internal combustion engine, if the compressed air in the air bottle is released in the space due to a fire, and its amount can seriously affect the fire extinguishing effect, the weight basis of the pyrotechnic agent should be appropriately increased. b.The weight of fire extinguishing agent required for each cubic meter of empty space in cargo pump rooms and vehicle loading spaces without any cargo shall be calculated in accordance with Table 3. This weight shall be calculated based on the total volume of the protected space. 3
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GB/T 14088-93
Total volume calculation roll
(minimum volume concentration)
4.1.6.2 Selection of total required amount of fire extinguishing agent; &, for a single distribution system, the total required amount of fire extinguishing agent is the required amount of each protected space: net concentration
(maximum concentration)
For a combined distribution system, the total required amount of fire extinguishing agent is the maximum value of the required amount of the protected space: b
For a combined distribution system, the total required amount of fire extinguishing agent is the sum of the required amount of each protected space or the required amount of each protected space. The most required is twice the amount
4.1.6.3 Quality requirements for halogenated fire extinguishing agents: a. Halogenated fire extinguishing agents shall comply with the provisions of GB4063; b. Halogenated fire extinguishing agents shall comply with the provisions of GB6051. 4.1.6.4 Fire extinguisher containers shall comply with the following provisions: 2. Fire extinguisher containers shall be made of steel and easy to refill with fire extinguishing agents. When the fire extinguishing agent is pressurized with dry nitrogen in the container, the filling rate of the extinguishing agent shall not be greater than 1.20k/L for 1211 and shall not be greater than 1.10 kg/l for 1301. b. When pressurized with dry nitrogen, each extinguishing agent container shall be filled to a similar pressure, and the difference shall not exceed ±5: the water content of the nitrogen used for pressurization shall be greater than 0.0H05 by volume: d. The fire extinguishing agent container shall be equipped with a fire extinguishing agent filling valve; if the fire extinguishing agent container is installed at the top of the container, a metal pipe with an oblique cut at the tail end shall be provided. The pipe shall extend to the bottom of the container so that the liquid fire can be ejected immediately. The inner diameter of the metal pipe shall not be smaller than the diameter of the container. f. The fire extinguishing agent container shall be equipped with an automatic overpressure discharge device or other approved safety device. The fire extinguishing agent discharged through the above device shall be led to the central opening of the station. The fire extinguishing agent container shall be clearly and permanently marked with the weight, volume, liquid test pressure, test date, fire extinguishing filling plate, filling pressure, factory number and inspection mark of the container. The body shall be marked with "1211" or "1301" in red and the mark shall be painted white. h. Facilities shall be provided for the operator to safely determine the weight and filling pressure of the secondary fire extinguishing agent in any container. 4.1.6.5 Fire extinguisher container placement and extinguisher operation: a. Fire extinguisher and valve are generally placed outside the protected area, but 1391 fire extinguisher container is designed to be placed inside the protected area: b. The installation of fire extinguisher container should be convenient for maintenance, operation and inspection; c. The fire extinguisher seat should be fixed to prevent movement, and its clearance should be at least 50 mm; d. The control device for releasing fire extinguisher should be easy to operate, and there should be a device that can automatically stop all fans and oil pumps in the protected area before the fire extinguisher is released; e. The control of the container for controlling the release of fire extinguisher should be able to be manually operated by the valve regardless of its power mode and whether it can be operated manually. The power supply requirements are: DC24V, 3A, common gas requirements; the starting gas source should be non-flammable or inert gas, with a pressure of 1. 0MPa; operating force (grip force) does not exceed 98 N + travel is about 15 rrru:f, the local operation position of the fire extinguishing agent should be equipped with: - a clear and permanent schematic diagram to show the placement of containers, main pipes, branch pipes, fittings, etc. related to the release and distribution of the fire extinguishing agent, and a brief description of the system operation method. 4.1.7 Distribution system
4.1.7.1 The distribution system of the pyrocarbon pyrocarbon extinguishing agent should be able to effectively transport and distribute the pyrocarbon extinguishing agent, and can spray the required pyrocarbon extinguishing agent into the protected space within the predetermined time. GB/T 14088--93
4.1.7.2 Or the pressure of the sudden gas at the end of the fire spray. For 1211\, it should not be less than 0.69MPa, and for 1301, it should not be less than 1.45Ma
4.1.7.3 The connecting pipe between the container and the nest should be made of old copper pipe or stainless steel pipe, or metal flexible pipe, and other pipe sections can use internal galvanized pipe.
4.1.7.4 The distribution pipeline shall not pass through the starting place, and should avoid passing through the service place. If it is necessary to avoid it, the arm through the service place shall not have a plastic joint
4.1.7.5 The fire extinguishing pipeline should be equipped with a positive air joint to regularly blow the fire extinguishing pipeline and nozzle with compressed air. 4.1.7.6 The fire extinguishing agent nozzle should be made of corrosion-resistant materials. 4.1.8 System quality assurance
4. 1. 8. 1
The equipment and devices used in the system shall be identified and registered, and approved by the competent authority. 4.1.8.2 The design of the system shall be reviewed and approved by the competent authority. 4.1.8.3 After completion, the fire extinguishing system shall be tested according to the approved test plan. 4.1.8. 4. Inspection, maintenance and training
The system must be kept in good operating condition at all times. The use, damage and recovery of the system must be reported immediately to the competent authority. The automatic links of the monitoring device must be manually inspected at least once a month.
c. Check the amount of fire extinguishing agent and the filling pressure in the fire extinguishing agent container every six months. If the net weight loss of the fire extinguishing agent is greater than 5% or the pressure loss corrected for temperature is greater than 10% according to Appendix A, Appendix B, and the gradual record (reference part), it must be refilled and replaced. d. Use compressed air with a pressure of 0.5MPa to blow the distribution pipe system once every six months to check whether the distribution pipe and nozzle are blocked.
Inspect the appearance of the system and the fixing of each device and equipment at least once a year: Any damage must be repaired immediately by the competent person:
f. All personnel who are expected to participate in the inspection, testing and operation of the fire extinguishing system must be fully trained to perform their duties. 4.2 Total fire protection system
4.2.1 This system is applicable to enclosed places with certain fire protection, in which the required concentration can be fully established and maintained within the required time to effectively extinguish the fire. 4.2.2 The system should be operated in an automatic mode. 4.2.3 The system should be designed so that the required extinguishing agent discharge time of the protected place does not exceed 20s. The discharge time of the extinguishing agent dose should be in accordance with the relevant regulations. 4.3 Local application system
4.3.1 The local application system is applicable to non-fixed enclosed areas with high fire risk, or local areas where there is a dangerous fixed enclosed area but the fire concentration cannot be fully established and maintained within the area. 4.3.2 The local application system can be operated in an automatic mode. 4.3.3 Wherever this additional local protection is provided, it is best to set it on a working plane and be on the same level as the exit. If necessary, it may be installed on more than one working plane, but there must be a medical product entrance on each plane. 4.3.4 The size of the space, the layout of the entrances and exits and the machinery inside it should be able to achieve escape from any location of the space within no more than 10 minutes.
4.3.5 An audible and visual signal should be provided outside each entrance to the hatch space and at the location where the fire control equipment is concentrated in the navigation bridge to indicate the operation of such device.
4.3.6 An indication sign should be provided outside each entrance and exit of the space to indicate whether the space has one or more automatically operated extinguishing devices and the type of extinguishing agent used. 4.3.7 The arrangement of nozzles should be such that the release of extinguishing agent will not endanger personnel using the normal exit stairs and escape routes of the cabin space; return 5
WGB/T14088—93
Measures should be provided to prevent accidental release of extinguishing agent and injury to personnel engaged in machinery maintenance. 4.3.8 The extinguishing device should be designed to be usable within an appropriate temperature range. 4.3.9 The total amount of extinguishing agent provided for each automatically operated local device shall be calculated in accordance with 4.1.6 based on the net volume of the local area. 4.3.10 The amount of fire extinguishing agent provided by each automatic local fire extinguishing device, when they are in action at the same time, calculated based on the total volume of the machinery space, the concentration of its evaporation gas in the air should not exceed 1.25%. 4.3.11 The extinguishing agent effect time of a single device should not exceed 10s. 4.3.12 The layout of the automatic local fire extinguishing device should be such that its release does not cause power failure or reduce the maneuverability of the ship. 4.4 Halon 1301 system with ignition agent containers stored in the machinery space. 4.4.1 Only Halon 1301 can be stored in the protected machinery space. Its containers should be dispersed in the space. 4.4.2 A manually started power release device should be installed outside the protected space. This power release device should have two sets of power sources, which are installed outside the protected space and can be used at any time. Only for machine spaces, one of the power sources is installed inside the protected space. The power lines connected to the fire extinguishing agent containers should be equipped with fault monitoring and power failure detection devices and have sound and light alarm displays. 4.4.3 A pneumatic or hydraulic power line connected to the fire extinguishing agent container should be set. The pneumatic or hydraulic pressure source is equipped with a device to monitor pressure loss and has sound and light alarm displays. 4.4.4 The power lines required for the release of the system laid in the protected space should be heat-resistant, such as mineral insulated relays or equivalent.
The piping required for the release of the system should be stainless steel pipes if it is designed for hydraulic or pneumatic operation. 4.4.5 Each pressure vessel shall be equipped with an automatic overpressure release device to enable the vessel to safely release gas to the protected space when the vessel is exposed to the effects of fire and the system is not activated. 4.4.6 The ignition medium container and the power lines and pipes mainly used for the release of the system shall be arranged so that when a fire or explosion occurs in the protected space and any power release line is damaged, that is, when a single failure occurs, at least 2/3 of the fire extinguishing dose required for the space in accordance with 4.1.6.1 can still be evenly released throughout the space. For spaces requiring only 1 or 2 containers, the arrangement of the system shall be specially approved.
4.4.7 Any extinguishing agent dispenser shall be equipped with a maximum of 2 nozzles. The maximum dose of each container shall be evenly distributed throughout the space according to the requirements of the extinguishing agent required: and shall be specially approved. 4.4.8 The container is equipped with a device to monitor the pressure drop (caused by air leakage and fire control effect) and an audible and visual alarm display should be provided in the protected area and the navigation cabin or in the place where the fire control equipment is concentrated. For the loading space, it is only necessary to set an alarm in the navigation cabin or the place where the fire control equipment is concentrated. 5 Test method
5.1 Test documents
a. Schematic diagram, layout diagram, installation diagram of main equipment, etc. of the halogenated hydrocarbon fire extinguishing system; h. Instruction manual, certificate of conformity and ship inspection certificate of the main equipment of the halogenated hydrocarbon fire extinguishing system; c. Test outline or test book of the halogenated hydrocarbon fire extinguishing system, 5.2 Appearance inspection
2. Check whether the layout of the equipment, devices and piping systems of the system meets the requirements of the design drawings: b. Check whether the installation and connection of the equipment, devices and piping systems of the system are firm. 5.3 Strength test
5.3.1 The pipe from the fire extinguishing agent container to the distribution valve shall be subjected to a traveling wave pressure strength test in the workshop. The test pressure P is: a. For the pipe of the Halon 1211 system, p.--f.0MPa; b. For the pipe of the Halon 1301 system - p = 12.0MPa; for the pneumatic control pipe, P = 6.0 MPa. 5.3.2 The pipeline from the distribution valve to the nozzle should be subjected to a hydraulic strength test in the workshop. The test pressure is: a. For the pipeline of the halon 1211 fire extinguishing system, 1, =1.05MPa6
: comGB/T14088-93
, for the pipeline of the halon 1301 fire extinguishing system, 1, =2.25M15.4 Air tightness test
5.4.1 All modified pipelines of the halon fire system should be subjected to an air tightness test on board with a test pressure of 0.7 MPa. During the test, each nozzle should be closed to check the tightness of each joint. 5.4.2 The control pipeline is tested for air tightness at a test pressure of 5.0 Mra on board to check the tightness of each joint. 5.5 Functional simulation test
5.5.1 Use the simulated system in actual operation to check the correctness and reliability of the basket loading work. 5.5.2 Use compressed air at a pressure of C.7 MPa to conduct a permeability test on the halogenated hydrocarbon distribution piping system to effectively check the correctness and reliability of the distribution piping system.
5.5.3 For ships built in batches, the first ship should be tested for function according to the approved test volume. 5.6 Test items and requirements for fire extinguishing agent containers and their main components and parts shall be in accordance with the requirements of GB/T 14089. 6 Inspection rules
6.1 The assembly plant of the system shall formulate and adhere to the quality management process regulations to ensure that the quality of the assembled system meets the design technical requirements. 6.2 Factory inspection
All the test requirements of 5.2~5.6 specified in this standard are qualified. 7
GH/T14088-93
1211 equal customer curve
(reference)
Rate, k/L
Figure A1211 fire extinguishing agent container pressurized to 2.5 and 3.0MP at 120'C Pressure W.ean
GB/T14088-93
Appendix B
1301 isochoric curve
(reference)
Figure B120℃ pressurized to 4.2MPa 1301 fire extinguishing agent pressure W.bzsoso.cOIAdditional instructions:
GB/T14088-93
1301 isochoric curve
(reference)
Filling rate, /
Pressure rate at 120℃ 2. 5 MPa 1301 fire extinguishing agent container pressure This standard is proposed by China Shipbuilding Industry Corporation. This standard is formulated by China Shipbuilding Industry Corporation 603 Institute. This standard is formulated by China Shipbuilding Industry Corporation 701 Institute of the Seventh Research Institute. The main drafters of this standard are Lin Deru, Weng Huiqian and Jiang Shaozeng.7MPa compressed air penetration test is carried out on the halogenated hydrocarbon distribution piping system to effectively check the correctness and reliability of the distribution piping system.
5.5.3 For ships built in batches, the first ship should be subjected to functional tests according to the approved test volume. 5.6 The test items and requirements of the fire extinguishing agent container and its main components and parts shall be in accordance with the requirements of GB/T 14089. 6 Inspection rules
6.1 The assembly plant of the system shall formulate and adhere to the quality management process regulations to ensure that the quality of the assembled system meets the design technical requirements. 6.2 Factory inspection
All the test requirements of 5.2~5.6 specified in this standard are qualified. 7
GH/T14088-93
1211 equal customer curve
(reference)
Rate, k/L
Figure A1211 fire extinguishing agent container pressurized to 2.5 and 3.0MP at 120'C Pressure W.ean
GB/T14088-93
Appendix B
1301 isochoric curve
(reference)
Figure B120℃ pressurized to 4.2MPa 1301 fire extinguishing agent pressure W.bzsoso.cOIAdditional instructions:
GB/T14088-93
1301 isochoric curve
(reference)
Filling rate, /
Pressure rate at 120℃ 2. 5 MPa 1301 fire extinguishing agent container pressure This standard is proposed by China Shipbuilding Industry Corporation. This standard is formulated by China Shipbuilding Industry Corporation 603 Institute. This standard is formulated by China Shipbuilding Industry Corporation 701 Institute of the Seventh Research Institute. The main drafters of this standard are Lin Deru, Weng Huiqian and Jiang Shaozeng.7MPa compressed air penetration test is carried out on the halogenated hydrocarbon distribution piping system to effectively check the correctness and reliability of the distribution piping system.
5.5.3 For ships built in batches, the first ship should be subjected to functional tests according to the approved test volume. 5.6 The test items and requirements of the fire extinguishing agent container and its main components and parts shall be in accordance with the requirements of GB/T 14089. 6 Inspection rules
6.1 The assembly plant of the system shall formulate and adhere to the quality management process regulations to ensure that the quality of the assembled system meets the design technical requirements. 6.2 Factory inspection
All the test requirements of 5.2~5.6 specified in this standard are qualified. 7
GH/T14088-93
1211 equal customer curve
(reference)
Rate, k/L
Figure A1211 fire extinguishing agent container pressurized to 2.5 and 3.0MP at 120'C Pressure W.ean
GB/T14088-93
Appendix B
1301 isochoric curve
(reference)
Figure B120℃ pressurized to 4.2MPa 1301 fire extinguishing agent pressure W.bzsoso.cOIAdditional instructions:
GB/T14088-93
1301 isochoric curve
(reference)
Filling rate, /
Pressure rate at 120℃ 2. 5 MPa 1301 fire extinguishing agent container pressure This standard is proposed by China Shipbuilding Industry Corporation. This standard is formulated by China Shipbuilding Industry Corporation 603 Institute. This standard is formulated by China Shipbuilding Industry Corporation 701 Institute of the Seventh Research Institute. The main drafters of this standard are Lin Deru, Weng Huiqian and Jiang Shaozeng.
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