Although my country's aerosol technology has the earliest development history, the technology has matured, and has reached the world's leading level. However, as a new type of fire extinguishing product, the relevant national specifications are in the continuous improvement stage. Currently, there are GB 50370- There are three national standards: 2005 "Code for Design of Gas Fire-Extinguishing Systems", GA 499.1-2010 "Code for Hot Aerosol Fire-Extinguishing Devices", and GB50263-2007 "Code for Construction and Acceptance of Gas Fire-Extinguishing Systems."
The latest industry standard GA 499.1-2010 "Thermal Aerosol Fire Extinguishing Device" issued by the Ministry of Public Security has made a more scientific revision of the GA499.1-2004 standard, classifying hot aerosols into S-types based on performance indicators. and K type, which overcomes the inconveniences of GA499.1-2004 due to the wide variety of chemical components, inconvenience in application and promotion, and high management costs; the product classification adds non-temperature-limiting fire extinguishing devices. According to the needs of the use site, this type of fire extinguishing device can reduce the use of coolant, reduce the mass of the device itself, and improve the fire extinguishing effect to a certain extent; the maximum filling quality of the aerosol fire extinguishing agent generating agent is limited; the generation of aerosol fire extinguishing agent The technical requirements for fire extinguishing agents and hot aerosol fire extinguishing agents have been adjusted; the 2004 version of the standard has been revised and supplemented from the aspects of product storage performance, safety performance, corrosion performance, etc.; from the aspect of environmental protection requirements, the materials of coolants and cooling devices have been proposed Comply with national environmental protection requirements.
The issuance and implementation of this industry standard is of great significance to standardizing the production and inspection of hot aerosol fire extinguishing devices and promoting its technological innovation and development. It also marks that my country's aerosol technology has become more mature.
In recent years, my country's fire protection industry has developed rapidly. In 2004, the sales of fire protection products were approximately 25 billion yuan. In 2008, sales reached approximately 46 billion yuan. The average annual sales growth rate in the past five years has reached 17 . The fire protection product market is mainly divided into four categories: automatic fire extinguishing systems, alarm equipment, building fire protection, and fire protection equipment. The market size of automatic fire extinguishing systems accounts for approximately 20% of the entire fire protection product market. Automatic fire extinguishing system products are mainly divided into four categories: gas fire extinguishing systems, water sprinkler fire extinguishing systems, foam fire extinguishing systems, and dry powder fire extinguishing systems. Among them, gas fire extinguishing systems account for 50%, water sprinkler fire extinguishing systems account for 25%, foam fire extinguishing systems account for 15%, and dry powder fire extinguishing systems account for 10%. In gas fire extinguishing systems, there are three main categories: IG541, heptafluoropropane, and aerosols. In 2006, 2007 and 2008, the market shares of aerosol fire extinguishing products in the gas fire extinguishing industry were 4.38, 4.99 and 3.42 respectively. Among them, the market shares of S-type aerosol products in the gas fire extinguishing industry were 1.17, 1.75 and 1.80 respectively. . The market share of S-type aerosol fire extinguishing products is gradually increasing.
my country's "Fire Protection Law" clearly stipulates: "The state encourages and supports fire protection scientific research and technological innovation, and promotes the use of advanced fire protection and emergency rescue technologies and equipment." At present, among the three major gas fire extinguishing systems, IG -541 is a patented product of the American Ansu Company, heptafluoropropane is a patented product of the American Great Lakes Company, and only S-type aerosol is a patented product independently developed by Jianrui Fire Protection and has independent intellectual property rights. Therefore, with the country's emphasis on encouragement and support for S-type aerosol fire extinguishing technology, the market for S-type aerosols is growing year by year.
The three traditional gas fire extinguishing systems are basically total submersion fire extinguishing methods. With the development of our country's scientific researchers, an aerosol fire extinguisher that can locally extinguish fires has been developed, targeting cars, kitchens, For fire extinguishing in homes and other places, aerosols are non-pressure storage, which greatly reduces the volume and weight of fire extinguishing. This breakthrough further reflects my country's global leadership in aerosol technology.