GBJ 110-1987 Design specification for halogenated hydrocarbon 1211 fire extinguishing system
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Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Design Specification for Halon 1211 Fire Extinguishing System
GBJ110—87
1989Beijing
Engineering Construction Standard Full-text Information System
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National Standard of the People's Republic of China
Design Specification for Halon 1211 Fire Extinguishing System
GBJ110—87
Editor Department: Ministry of Public Security of the People's Republic of China Approving department: State Planning Commission of the People's Republic of China Effective date: June 1, 1988
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Notice on the release of "Halon 1211 Fire Extinguishing System Design Specification"
Ji Biao [1987] No. 1607
According to the requirements of the State Planning Commission's Ji Zong [1984305] document, the "Halon 1211 Fire Extinguishing System Design Specification" jointly compiled by the Ministry of Public Security and relevant units has been reviewed by relevant departments. The "Halon 1211 Fire Extinguishing System Design Specification" GBJ110-87 is now approved as a national standard and will be implemented on May 1, 1988.
This specification is managed by the Ministry of Public Security, and its specific interpretation and other work are the responsibility of the Tianjin Fire Science Research Institute of the Ministry of Public Security. The publication and distribution is organized by the Basic Construction Standard and Quota Research Institute of our Commission. State Planning Commission
September 16, 1987
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Preparation Instructions
This specification is prepared by the Tianjin Fire Science Research Institute of the Ministry of Public Security and the Wuhan Iron and Steel Design Institute of the Ministry of Metallurgical Industry and other five units in accordance with the notice of the State Planning Commission's Jizong {1984] No. 305.
During the preparation process, the preparation team conducted a comprehensive investigation and study on the research, design, production and use of halogenated hydrocarbon fire extinguishing systems in my country in accordance with the relevant policies and guidelines of national capital construction and the fire protection work principle of "prevention first, prevention and elimination combined", carried out some test verification work, and based on the summary of existing scientific research results and engineering practice, referred to relevant international standards and foreign advanced standards for preparation, and widely solicited opinions from relevant units. After repeated discussions and revisions, it was finally finalized by the relevant departments. This specification has seven chapters and six appendices. It includes general principles, protection zone setting, calculation of fire extinguishing agent dosage, design calculation, system components, operation and control, safety requirements and other contents. During the implementation process, each unit should pay attention to summarizing experience and accumulating information. If you find that there is a need for modification and supplement, please send your opinions and relevant information to the Tianjin Fire Science Research Institute of the Ministry of Public Security for reference in future modifications.
Ministry of Public Security of the People's Republic of China
September 1987
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Chapter 1 General
Chapter 2
Chapter 3
Protection Zone Setting
Calculation of Fire Extinguishing Agent Dosage·
Section 1
Section Section 2
Section 3
Chapter 4
Section 1
Section 2
Chapter 5
Section 1
Section 2
Section 3
Chapter 6
Chapter 7
Appendix 2
Appendix 3
Appendix 4
Appendix 5
Appendix 6
Total amount of fire extinguishing agent
Design extinguishing agent Exergy ·
Opening loss compensation
Design calculation
General provisions
Pipe network fire extinguishing system
System components
Storage device
Valves and nozzles
Pipeline and its accessories
Operation and control
Safety requirements
Glossary
Specific volume of halon 1211 vapor·
Halon 1211 vapor pressure Force·
Halon 1211 design concentration
Altitude correction factor
Terminology
Additional explanation
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Chapter 1 General Provisions
Article 1.0.1 This specification is formulated in order to reasonably design the Halon 1211 fire extinguishing system and protect the safety of public property and personal life and property. Article 1.0.2 The design of the Halon 1211 fire extinguishing system shall comply with the relevant principles and policies of the national capital construction and be safe, reliable, technologically advanced and economically reasonable in accordance with the specific conditions of the protection area.
Article 1.0.3
This specification applies to the Halon 1211 full flooding fire extinguishing system installed in industrial and civil buildings, and does not apply to the design of the Halon 1211 explosion suppression system. Article 1.0.4 Halon 1211 fire extinguishing system can be used to extinguish fires of the following substances: 1. Combustible gas fires; 2. Class A, B, and C liquid fires; 3. Surface fires of combustible solids; 4. Electrical fires. Article 1.0.5 Halon 1211 fire extinguishing system shall not be used to extinguish fires of the following substances: 1. Chemical substances that can be rapidly oxidized without air, such as nitrocellulose and gunpowder; 2. Active metals, such as potassium, sodium, magnesium, titanium, zirconium, uranium, cyclopentane, etc.; 3. Metal hydrides, such as potassium hydride and sodium hydride; 4. Chemical substances that can decompose by themselves, such as certain peroxides and hydrazine; 5. Substances that can spontaneously combust, such as phosphorus; 6. Strong oxidants, such as nitrogen oxides and fluorine. Article 1.0.6 In addition to implementing the provisions of this specification, the design of the halogenated hydrocarbon 1211 fire extinguishing system shall also comply with the requirements of the relevant national standards and specifications in force. Engineering Construction Standard Full Text Information System
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Chapter II Protection Zone Setting
Article 2.0.1 The division of protection zones shall comply with the following provisions: 1. Protection zones shall be divided by fixed enclosed spaces; 2. When a pipe network fire extinguishing system is used, the area of a protection zone should not be greater than 500m2, and the volume should not be greater than 2000m;
3. When a non-pipe network fire extinguishing device is used, the area of a protection zone should not be greater than 100m2, the volume should not be greater than 300m, and the number of non-pipe network fire extinguishing devices installed should not exceed 8.
Article 2.0.2 The minimum ambient temperature of the protection zone should not be lower than 0℃. Article 2.0.3 The fire resistance limit of the partition wall and door of the protection zone shall not be less than 0.60h; the fire resistance limit of the ceiling shall not be less than 0.25h. Article 2.0.4 The allowable pressure of doors, windows and enclosure components in the protection zone shall not be less than 1200Pa.
Article 2.0.5 The protection zone should not be opened. If it is necessary to open, an automatic closing device should be installed. When it is really difficult to install an automatic closing device, the provisions of Article 3.3.1 of this code shall be followed.
Article 2.0.6 Before spraying the fire extinguishing agent, the fire dampers of the ventilator and ventilation duct in the protection zone shall be automatically closed, and production operations that affect the fire extinguishing effect shall be stopped. Article 2.0.7 There should be a pressure relief port in the protection zone, which should be installed on the outer wall and its position should be more than 2/3 of the indoor clear height from the ground.
When the protection zone is equipped with explosion-proof pressure relief holes or the gaps between doors and windows are not equipped with sealing strips, the pressure relief port may not be installed.
Article 2.0.8 The area of the pressure relief port shall be calculated as follows: S = 7.65 × 10-2 (2 · 0 · 8)VP
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Wherein S—the area of the pressure relief port (m);
P—the allowable pressure of the enclosure components of the protection zone (including doors and windows) ((Pa); mar——the average design mass flow rate of the fire extinguishing agent (kg/s).Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter III Calculation of Fire Extinguishing Agent Consumption
Section 1 Total Consumption of Fire Extinguishing Agent
Article 3.1.1 The total consumption of fire extinguishing agent shall be the sum of the design consumption and the reserve consumption. The design consumption shall include the design fire extinguishing consumption, loss compensation, the remaining amount in the pipe network and the remaining amount in the storage container.
Article 3.1.2 The design consumption of fire extinguishing agent in the combined distribution system shall not be less than the design consumption of the protection zone that requires the most fire extinguishing dosage. Article 3.1.Article 3 The protection area of the key protection object or the combined distribution system of more than eight protection areas should have a spare amount, and it should not be less than the design amount. The storage container of the spare amount should be interchangeable with the main storage container. Section 2 Design fire extinguishing amount
Article 3.2.1 The design fire extinguishing amount should be calculated according to the following formula: MK·
(3·2·1)
Wherein M is the design fire extinguishing amount (kg);
Kc is the altitude correction factor, which should be adopted according to the provisions of Appendix 5;Φ is the design concentration of the fire extinguishing agent;
V is the maximum net volume of the protection area (m);-the specific volume of the fire extinguishing agent in the protection area at 101.325kPa atmospheric pressure and the lowest ambient temperature (m\/kg) should be calculated according to the provisions of Appendix 2.
Article 3.2.2 The design concentration of the fire extinguishing agent should not be less than 1.2 times the fire extinguishing concentration or 1.2 times the inerting concentration, and should not be less than 5%.
The extinguishing concentration and inerting concentration shall be determined through tests. Engineering 4 Construction Standard Full Text Information System
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Article 3.2.3 The protection area with explosion hazard shall adopt the inerting concentration, and the protection area without explosion hazard may adopt the extinguishing concentration.
Article 3.2.4 If the extinguishing concentration or inerting concentration of a mixture composed of several different flammable gases or Class A, B, and C liquids has not been tested, it shall be determined according to the highest concentration.
The extinguishing concentration, inerting concentration and minimum design concentration of the relevant flammable gases and Class A, B, and C liquids may be adopted according to Appendix 4.
Article 3.2.5 The design concentration of books, archives and cultural relics databases shall be 7.5%.
Article 3.2.6 The design concentration of places such as transformer substations, communication rooms, and computer rooms shall be 5%.
Article 3.2.7 The immersion time of the fire extinguishing agent shall comply with the following provisions: 1. For fires on the surface of combustible solids, it shall not be less than 10 minutes. 2. For fires on combustible gases, Class A, B, C liquid fires and electrical fires, it shall not be less than 1 minute.
Section 3 Opening loss compensation
Article 3.3.1 The opening loss compensation shall be determined based on the time for the interface to drop to the design height. When it is longer than the specified extinguishing agent immersion time, no compensation is required. When it is less than the specified immersion time, compensation shall be made.
The design height of the interface shall be greater than the height of the protected object in the protection zone, and shall not be less than 1/2 of the net height of the protection zone.
Article 3.3.2 When there is an opening or several openings with the same bottom elevation and equal height on the wall of a protection zone, the time for the interface to drop to the design height can be calculated as follows: t=1.2HH.-
Kb/2gnh3
[1 +(1± 4. 70)
......(3.3.2)
Wherein: t—time for the interface to drop to the design height (s); Engineering Construction Standard Full-text Information System
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H——net height of protection area (m);
Ha design height (m);
V——net volume of protection area (m*);
K——opening flow coefficient, which can be 0.66 for circular and rectangular openings; 6
——total width of opening (m);
gn——gravitational acceleration (9.81m/s2); h——opening height (m);
9——design concentration of fire extinguishing agent.
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Chapter 4 Design Calculation
Section 1 General Provisions
Article 4.1.1 When designing and calculating the pipe network fire extinguishing system, the ambient temperature can be 20℃. Article 4.1.2 The storage pressure of the fire extinguishing agent in the pressure storage system should be 0.5×105Pa or 25.0X105Pa.
Note: (1) Storage pressure refers to gauge pressure. The pressure in other articles of this chapter refers to gauge pressure unless otherwise specified. (2) The legal unit of measurement 1Pa can be converted into the commonly used non-legal unit of measurement 1.02×10-5kgf/cm2. Article 4.1.3 The fire extinguishing agent in the storage container of the pressure storage system should be pressurized with nitrogen, and the water content of the nitrogen should not be greater than 0.005% by volume. Article 4.1.4 The maximum filling density and filling ratio of the fire extinguishing agent of the pressure storage system shall be determined by calculation and shall not be greater than the provisions of Table 4.1.4. Maximum filling density and filling ratio
Storage pressure
10.5×105
25.0×105
Article 4.1.5
3.1X105Pa.
Filling density
(kg/m)
Filling ratio
The minimum design working pressure (absolute pressure) of the nozzle shall not be less than Article 4.1.6 The injection time of the fire extinguishing agent shall comply with the following provisions: 1. For flammable gas fires and Class A, B, and C liquid fires, it shall not be greater than 10s; 2. For national and provincial cultural relics databases, archives, and library collections, it shall not be greater than 10s;
3. For other protection areas, it shall not be greater than 15s.
Article 4.1.7 The time from the fire extinguishing agent flowing out of the container valve to filling the pipeline should not be longer than the Engineering Construction Standard Full Text Information System
W781m/s2); h——opening height (m);
9——design concentration of fire extinguishing agent.
Engineering and Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 4 Design Calculation
Section 1 General ProvisionswwW.bzxz.Net
Article 4.1.1 When designing and calculating the pipe network fire extinguishing system, the ambient temperature can be 20℃. Article 4.1.2 The storage pressure of the fire extinguishing agent in the pressure storage system should be 0.5×105Pa or 25.0X105Pa.
Note: (1) Storage pressure refers to gauge pressure. The pressure in other articles of this chapter refers to gauge pressure unless otherwise specified. (2) The legal unit of measurement 1Pa can be converted into the commonly used non-legal unit of measurement 1.02×10-5kgf/cm2. Article 4.1.3 The fire extinguishing agent in the storage container of the pressure storage system shall be pressurized with nitrogen, and the water content of the nitrogen shall not be greater than 0.005% by volume. Article 4.1.4 The maximum filling density and filling ratio of the fire extinguishing agent in the pressure storage system shall be determined based on calculations and should not be greater than the provisions of Table 4.1.4. Maximum filling density and filling ratio
Storage pressure
10.5×105
25.0×105
Article 4.1.5
3.1X105Pa.
Filling density
(kg/m)
Filling ratio
The minimum design working pressure (absolute pressure) of the nozzle shall not be less than Article 4.1.6 The spraying time of the fire extinguishing agent shall comply with the following provisions: 1. For flammable gas fires and Class A, B, and C liquid fires, it shall not be more than 10s; 2. For national and provincial cultural relics databases, archives, and library collections, it shall not be more than 10s;
3. For other protection areas, it shall not be more than 15s.
Article 4.1.7 The time from the fire extinguishing agent flowing out of the container valve to filling the pipeline shall not be more than the time of the fire extinguishing agent flowing out of the container valve to filling the pipeline shall not be more than the time of the fire extinguishing agent flowing out of the container valve to filling the pipeline.
W781m/s2); h——opening height (m);
9——design concentration of fire extinguishing agent.
Engineering and Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 4 Design Calculation
Section 1 General Provisions
Article 4.1.1 When designing and calculating the pipe network fire extinguishing system, the ambient temperature can be 20℃. Article 4.1.2 The storage pressure of the fire extinguishing agent in the pressure storage system should be 0.5×105Pa or 25.0X105Pa.
Note: (1) Storage pressure refers to gauge pressure. The pressure in other articles of this chapter refers to gauge pressure unless otherwise specified. (2) The legal unit of measurement 1Pa can be converted into the commonly used non-legal unit of measurement 1.02×10-5kgf/cm2. Article 4.1.3 The fire extinguishing agent in the storage container of the pressure storage system shall be pressurized with nitrogen, and the water content of the nitrogen shall not be greater than 0.005% by volume. Article 4.1.4 The maximum filling density and filling ratio of the fire extinguishing agent in the pressure storage system shall be determined based on calculations and should not be greater than the provisions of Table 4.1.4. Maximum filling density and filling ratio
Storage pressure
10.5×105
25.0×105
Article 4.1.5
3.1X105Pa.
Filling density
(kg/m)
Filling ratio
The minimum design working pressure (absolute pressure) of the nozzle shall not be less than Article 4.1.6 The spraying time of the fire extinguishing agent shall comply with the following provisions: 1. For flammable gas fires and Class A, B, and C liquid fires, it shall not be more than 10s; 2. For national and provincial cultural relics databases, archives, and library collections, it shall not be more than 10s;
3. For other protection areas, it shall not be more than 15s.
Article 4.1.7 The time from the fire extinguishing agent flowing out of the container valve to filling the pipeline shall not be more than the time of the fire extinguishing agent flowing out of the container valve to filling the pipeline shall not be more than the time of the fire extinguishing agent flowing out of the container valve to filling the pipeline.
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