【 Weak current College 】 posted: new construction of fire extinguishers configuration principles of selection---Power By 【 China power house network 】

The 2005 national GB50140-building fire extinguishers configuration design code compilation management group and Deputy Head of the Ministry of public security, Executive Vice President of the Shanghai Institute of science and Technology Department for fire research fellow Tang Zhu Hua 2008-08 (Shanghai 200032) Summary: this article according to the 2005 comprehensive revision of the new national standard GB50140-2005 the construction of fire extinguishers configuration design code that profiles, image discusses the architectural principle of fire extinguishers configuration selection and gives lectures on basic theory in fire and national norms GB50140 national protocols with a detailed explanation of the extinguisher mechanism, and can display board-fire safety and building fire extinguishers configuration selection when fire extinguisher suitable fight fire types of simple explanation table. Keywords: building; fire extinguishers; selection configuration mechanism; fire; fire; fire standardization; national norms; product standards. A short sequence of fire extinguishers, fire extinguisher proper selection is the primary configuration design key technologies. Different combustible respective has its unique combustion principle, various types of fire extinguishers have different extinguishing mechanism. According to the various types of fire extinguishers and fire-fighting mechanism different from new and reconstructed, expansion of industrial and civil construction in the place of production, use or storage of fuel combustion of different principles, decided on different types of fire extinguishers can fight A, B, C, D or/and E class fire. The 2005 edition of the 2005 national GB50140-building fire extinguishers configuration design code (hereinafter referred to as this specification may be) of chapter IV of detailed, scientifically establishes the types of fire extinguishers (extinguishing medium according to the type), type (in accordance with the portable and trolley), specifications (in accordance with the amount of fire extinguishers fire extinguishing agent for filling or classification), and select elements. These provisions are primarily based on international standards and advanced standard, and since the Ministry of public security fire research institute founded by the subordinate has 40 years of fire prevention experience and experiment. Selection principles of chapter IV of this specification is configured in the section "General provisions" and the first choice of the fire extinguishers provided for the six main factors. 4.1.1 fire extinguisher choice should consider the following factors: 1 fire extinguishers configuration types of fire extinguishers configuration places 2 risk level; 3 fire extinguishers efficiency and versatility; 4 fire extinguishing agent on the protection of items defaced; 5 fire extinguisher set point temperature of the environment; 6 use fire extinguishers personnel stamina. 4.1.1 article's main purpose is to: requirements and design units and departments to follow these six factors, to matching suitable type, size, type of fire extinguishers. This specification is the first section of chapter IV of the "General provisions" after 3 provides for priority matching general-purpose (ABC-E) fire extinguishers and extinguishing agent compatibility of fire extinguishers, fire extinguisher configuration: 4.1.2 the same place, use the same type, and operating methods of fire extinguishers. When the same fire extinguishers configuration types different fire places exist, should use universal type fire extinguishers. 4.1.3 in the same fire extinguishers configuration places, elected for two or more types of fire extinguishers, fire extinguisher with fire extinguishing agent compatibility. (Section 4.1.3 section is a compulsory provisions) 4.1.4 incompatible agent for example see Appendix E of this specification. This article discusses the topic is building fire extinguishers principle of selecting configuration, mainly based on national standards GB50140-2005 the construction of fire extinguishers configuration design specifications "Chapter 4, section II, select the" type "of fire extinguishers: 4.2.1A class fire place you should choose water-type fire extinguishers, ammonium phosphate dry chemical fire extinguisher, foam extinguisher or halon fire extinguishers. 4.2.2B class fire place you should choose the foam fire extinguishers, sodium bicarbonate powder fire extinguishers, fire extinguishers, ammonium phosphate powder extinguisher, class b-fire water extinguisher or halon fire extinguishers. Polar solvent B class fire place you should choose off B class fire resistance solubility of fire extinguishers. 4.2.3C class fire place you should choose the ammonium phosphate, sodium bicarbonate powder fire extinguishers, fire extinguishers or halon fire extinguishers. 4.2.4D class fire places should choose to fight metal fire private fire extinguishers. 4.2.5E class fire place you should choose the ammonium phosphate, sodium bicarbonate powder fire extinguishers, fire extinguisher or Halon extinguishers but may not use metal Horn spray tube CO2 fire extinguishers. (Section 4.2.1 ~ 4.2.5 is mandatory provisions) 4.2.6 non-essential facilities should not be configured halon fire extinguishers. Non-essential places for example see this specification Appendix F. Essential place to configure the halon fire extinguishers. Detailed tables and summary explanation of the basis of the above provisions of this specification and the author of 2000, the previous version of "applicability" table of fire extinguishers, author seriously modified, where appropriate, repeatedly and recently completed a new version of the applicability of the "building fire extinguishers" table (see table 1 and table summary details 2) for the reader. A detailed table that can be applied to the basic theory of lectures and the national fire code GB50140 explain of protocols, fire extinguishers mechanism. Summary table that can be applied to the display board-fire safety and building fire extinguishers configuration selection, simple explanations of fire extinguishers applicable fight fire type. From the new version of the applicability of the "building fire extinguishers" can be seen in the table: ABC class powder (ammonium phosphate powder) fire extinguishers and clean gas fire extinguishers applicable to fight A, B, C and E class and other classes (4) fire, belonging to the generic type (ABC-E) fire extinguishers. Therefore, in those of the possibility of a wide range of fire, should give priority to choose these multi-function General-purpose fire extinguishers. Unknown fire extinguishers configuration types of fire, it may be based on this specification section 4.2, figure out a place you should choose what type of fire extinguishers. At present more prevalent around the problems is, in A class of fire locations configured cannot fight A fire of BC powder (sodium bicarbonate powder) fire extinguishers. For class d fires, i.e. metal combustion fire, China's current situation, there is no fight such fires of shaping fire extinguisher products. The current foreign fight D class fire extinguisher mainly powder graphite fire extinguishers and fire fighting metal dedicated dry chemical fire extinguisher. Therefore, it is not yet in production in ChinaTypes of fire extinguishers and extinguishing agent, using imported fire extinguishers, or dry sand and iron filings, instead of at the end. In the combustion of flammable substances in the live-fire place, E class, with particular attention to: should prevent matching fire extinguishers improper causing electric shock wounding or equipment accident. The new version — applicability of building fire extinguishers (detail sheet 1) fire extinguishers, fire extinguisher fire place for water-based type fire extinguishers clean gas (1211) fire extinguishers, fire extinguisher water-foam fire extinguishers can eliminate water containing class b foam fire-resistant additives machinery ABC class-powder-coated foam (ammonium salt) BC powder (sodium bicarbonate) A class (solid matter) fire places suitable for applicable not applicable applies does not apply to water cooling and penetrating fire and solid combustible substances and fire-fighting, and can effectively prevent comes alive with cooling and cover fuel surface and makes it function with air insulation powder can be attached to the surface layer of solid fuel, has played the role of sodium bicarbonate to smother the flames solid fuel without glue, can only be controlled fire, not put out A fire with fire by effectiveness; clean gas fire extinguishers principle and applicability, and Halon 1211 fire extinguisher class with a fire extinguisher exhaled carbon dioxide no droplets, all gas, on the fight against A class of the class b fire basic invalid (liquid or solid substances can be melted) fire place does not apply apply applies apply applies apply applicable water jet direct attack on the oil side will shock-resistant oil fire, resulting in the spread of fire, resulting in fire suppression difficult added to extinguish the fire of additive B class, plus the spray function, can wipe out the class b non-suitable for extinguishing the fire of polarity solvents and oil fire, surface covering fuel to air is isolated for fire extinguishing polarity solvents can fast extinguishing suffocation flame, burning process with interrupt chain reaction of the chemical activity of clean gas fire extinguishing agent quickly asphyxia flame combustion chain reaction, suppression, and abort the combustion of carbon dioxide by gas piled up in the burning surface, dilution and isolated air C class (gas substances) fire places not applicable not applicable applied for the applicable fire extinguishers of small streams to fight gas fire is small, basic invalid foam on combustible liquid fire extinguishing is valid, but fighting combustible gas fire extinguishing basic invalid Jet fast fight gas flame, burning process with interrupt chain reaction of the chemical activity of clean gas fire extinguishing agent can inhibit combustion chain reaction, stop burning CO2 smothering, without leaving residual trace, not defaced device class d (metal substances) shall not apply to the fire place you should choose a special metal fire extinguished fire. As a result there is no such train product of fire extinguishers, fire fighting class d, fire-fighting equipment by design units and the local public security Fire Department consultation. You can use the import of fire extinguishers, mainly in the powder graphite fire extinguishers and off metal fire extinguishers, in private or in dry sand or iron filings next alternative. E class (electrical equipment) fire places not applicable not applicable to apply for suitable for extinguishing water, conductive, votalge and insulation resistance, and other performance indicators does not meet the requirements of a charged fire, electric shock hazard exists; see wounding GB50140-2005 national standards of the construction of fire extinguishers configuration design code 4.2.5 dry, clean gas (1211), carbon dioxide fire extinguishing agent for electric insulation properties, fire safety for live. As described in the 2005 national GB50140-building fire extinguishers configuration design code 4.2.5 applies to fight live A class a, b and c fire applies to fight live B class and C class fire to put out a live A class a, b and c fire applies to fight live B class and C class of fire, but may not use metal Horn spray tube of carbon dioxide fire extinguishers
In the display board-fire prevention and building fire extinguishers configuration selection, the table can be simplified to the following table: new version — applicability of building fire extinguishers (summary table 2) fire extinguishers, fire extinguisher fire place for water-based type fire extinguishers clean gas (1211) fire extinguishers, fire extinguisher water-foam fire extinguishers can eliminate water containing class b foam fire-resistant additives machinery ABC class-powder-coated foam (ammonium salt) BC powder (sodium bicarbonate) A class (solid matter) fire places suitable for applicable not applicable not applicable to class b (liquid or solid substances can be melted) fire place does not apply apply to fight non-polar solvents and oil fire suitable for extinguishing fire polar solvent is suitable for the applicable category c (gaseous substances) fire places not applicable not applicable applied for the applicable category d (metal substances) shall not apply to the fire place E class (electrical equipment) fire places not applicable not applicable for the fight live A class a, b and c fire applies to fight live B class and C class fire to put out a live A class a, b and c fire applies to fight live B class and C class fire thank at this point, the author to specifically thank GB Atlas 07S207 the gas fire design selection and construction of fire extinguishers configuration Napa Group, their applicability to the "building fire extinguishers" format table, language, content, layout and so made a very good suggestions in place, making it more scientific, rigorous, sophisticated, reasonable, convincing, but also for the 2005 national GB50140-the building of fire extinguishers configuration design code of protocols. [References] 1, the Ministry of public security fire editors-in-Chief. Shanghai Research Institute of the building fire extinguisher People's Republic of China national standard configuration design code GB50140-2005 Beijing: zhongguojihuachubanshe, 2005-2, the Ministry of public security fire editors-in-Chief. Shanghai Research Institute of the building fire extinguisher People's Republic of China national standard configuration check acceptance and standard "GB50444-2008 Beijing: zhongguojihuachubanshe, 2008 (3) international standard ISO11602-1-2000 in the fire of the selection and configuration of the International Organization for Standardization, international standard 4, 2000 ISO11602-2-2000 fire extinguisher inspection and maintenance of the International Organization for Standardization, 2000 5, Jiangsu Province, Heilongjiang province, Guangdong Province Public Security Bureau, fire station preparation. People's Republic of China public security industry standard fire extinguisher maintenanceAnd scrap statute GA95-2007-Beijing: CEN, the 2007 6, Tang Zhu Hua-China fire services standardization course calendar — 2003 fire monitor calendar and 2005 fire extinguisher calendar. Shenzhen "Asia fire on 2008-06 7: the Ministry of public security and the State in 1994 November joint publication gongtong Word 【 1994 】 094 No. 【about in non-essential places to stop and then configure the halon fire extinguishers notification 】 8, Ministry of 1999-02-01, issued by public-Word 【 1999 】 No. 031 【about phase-out of halons fixed fire extinguishing systems and halon fire extinguishers for 】 9, Ministry of public security 2001 01 Aug published public eliminating 【 2001 】 217, Wen, 【 on further strengthening the halon substitutes and alternative technology management notification 】 10, the Ministry of 15 December 2000 release of the public with 【 2000 】 No. 423, 【about supervision unit implement fire extinguishers configuration and periodic inspection maintenance functions to ensure the effective beginning of fire suppression of 】 11, Tang Zhu Hua Editor." architectural fire extinguishers configuration design manual. Shanghai: Shanghai Science and technology press, 1995, 12, Tang Zhu hua. regarding the extinguisher level physical concepts and topics of discussion: the architecture of Shanghai mechanical engineering ", the 2008-09-13, Tang Zhu Hua-version — construction of fire extinguishers configuration principles of selection of Beijing: the fire technical and product information on 2007-05-14, 2005 the national standard GB4351.1 extinguishers part 1: performance and structural requirements of Beijing: CEN, 2005 15, 2005 the national standard GB4351.2-extinguishers part 2: portable extinguishers seamless steel bottle requirements of Beijing: CEN, 2005 16, national standards GB/T4351.3-2005 the extinguishers, part 3: inspection rules. Beijing: CEN, 2005 17, 2005 the national standard GB8109-trolley fire extinguishers on Beijing: CEN, 2005 18, Tang Zhu Hua-version — the construction of fire extinguishers configuration design code of fire extinguishers configuration benchmarks. Tianjin: the China water supply and sewerage Act, 2006-08-19, the China fire protection Handbook, vol. 6 No. 4 the building fire safety facilities on Chapter 12 (Chief Editor Zhu Hua Tang) the selection and construction of fire extinguishers configuration, P730 ~ 750, 2007-12 1st Edition 1st printing, Shanghai Science and technology press 20, the construction of water supply and drainage design manual, Chapter 6 of the fire code section 7 (Chief Editor Zhu Hua Tang) the construction of fire extinguishers configuration on 2008-10 2nd Edition, first printing press in China's construction [the author] Tang Zhu hua (1942-05 «), male, Ministry of public security fire Research Institute, Shanghai Science and Technology Department, research fellow, level II, served as the IPCC GB50338-2003, 2005 and GB50140-GB50444-2008 three national norms of the management group of the Deputy group leader, nowadays mainly engaged in the revision of national standards and management, as well as national, industry fire product standards review of presentation. Contact address, zip code, phone, Shan Nan er Rd, Shanghai, no. 601, 200032 road, 13601762111.