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Ultrafine powder fire extinguishing device applications in the petrochemical sites - petrochemical,    by hi joiney

An overview of Oil Chemical industry Refers to the oil, Natural gas As raw material, through physical, chemical and mechanical processing of the system to take all kinds of petrochemical products in the industry. It involves national Economy In various fields, is an important and indispensable industry people's livelihood and national economy one of the pillar industries in the national economy is very important position. Petrochemical complex industrial production processes, equipment, wide range, is a process more complicated, technical nature of the industry. As used in the production process of raw materials, semi-finished products and a variety of support materials are flammable and explosive substances in large, easy to cause fire and explosion, and fire is not easy when the fierce fire fight, the past 20 years, the world's petrochemical industry very rapidly, thus causing a major fire, explosion accidents have also been. For example: 1973 and 1974 occurred in a row in Japan joint venture oil fire accident, not only caused heavy casualties and property losses, but also seriously polluted the surrounding waters. Union Carbide Corporation in 1975, the Belgian company Ante Pu plant produce 150,000 T of high-pressure polyethylene unit, a result of a Reactor Filler Cover leaks, heat blast, chain reaction, the entire factory was destroyed. Occurred in Spain in 1978 due to over loading and sun exposure lead acid plant explosion, a death more than 200. 1982, near the Venezuelan capital of Caracas, a large power plant oil Tank Explosion, resulting in 145 deaths, 500 wounded, the casualties of the heavy oil storage tank fire in the world are rare. In our history have also appeared petrochemical fire was tragic history: at 9:55 on August 12, 1989, in Qingdao Huangdao oil depot explosion! The fire caused 97 casualties, including 19 deaths and injured 78 people, burning a total of 12 Fire Vehicles, more than 40,000 tons of crude oil, the destruction of houses more than 4000 m 2, the destruction of roads 20,000 m 2; burning heat, water pollution, explosion shock, so that 33 000 deaths rare black sea bream, nearly 3,000 mink expired, 5200 acres of shrimp ponds, 1,160 acres of mussels, scallop farms destroyed 2.2 hectares of tidal flats on the dead fish into 100 million. 35.4 million yuan in direct economic losses. By the visible: the petrochemical industry is also a large fire and explosion hazards, and in case of fire, explosion, the loss of big, big injuries, affecting the industry, so has been the focus of fire protection. Therefore developing the petrochemical fires the difficult task of fire protection products have fallen into the fire safety industry, heads of major companies. 2, storage tank for fire extinguishing agents and fire extinguishing device more options The past, in the storage tank fire protection design and application, the use of more of a foam fire extinguishing agent fire extinguishing systems, smoke fire extinguishing systems, dry powder fire extinguishing systems, these products for the oil system has achieved a lot of fire. However, the actual use of that, these products are used in oil tank fire, have their own advantages and shortcomings. 1, foam fire extinguishing system Foam fire extinguishing agent is foam and water mixture by the ratio of special foam mixture by mixing the air bubble generator and a bubble, cover the burning oil surface cooling through the foam separation of oxygen and the suppression of fuel evaporation such as the role, to the purpose of fighting fires. Foam fire extinguishing system is to mix water and foam mixture and foam, the foam delivered to the oil tank inside the fire extinguishing system. Foam fire extinguishing system used in storage tanks, cooling and anti recrudescence due to its good effect, which are universally applied. Its shortcomings: A) slow fire. Fighting lasted for more than 1min. B) equipment is huge. Fixed foam fire extinguishing system must bubble generator, foam pipe the mixture ratio of mixer, foam tank, foam mixture pump, pool and other equipment. In addition to portable foam fire extinguishing system large-scale fire, the need to water, foam trucks, hoses, foam gun, foam hook, foam tube rack etc.

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