Wednesday, January 5, 2011

【 Weak current College 】 prevent fire of basic technical measures---Power By 【 China power house network 】


1. eliminate the sources of ignition. Research and analysis of combustion conditions tell us of the fact that the basic principles of the fire main shall establish in eliminating sources of ignition. We know that people either at your home or Office or in the production, in short, in every place, often in various more or less combustible substances surrounding it, but the substance is present in people's lives are essential in the air. This means that with the fire of the burning three foundations of two conditions. The conclusion is simple: to eliminate the source of fire. Only thus can in most cases meet the prevention of fires and explosions of basic requirements. We said that the fire cause investigation actually find out what kind of a fire caused by the fire.

Measures to eliminate the fire source, such as installing a lot of explosion-proof lamps, prohibition of pyrotechnics, grounding lightning, quarantine and control temperature, etc.

2. control of fuel. Prevent burning three basic conditions in any one (such as eliminating the ignition source), you can prevent fires from occurring. If you take the Elimination of combustion conditions in the second, more security and reliability. For example in carbide library fire regulations, it is usually taken to prevent fire and prevent fuel acetylene of various measures.

Control fuel measure: the life and production possible for nonflammable and noncombustible materials instead of combustible materials, such as cement replaces wood buildings housing; less combustible substances (flammable gas, vapour and dust) in the concentrations in the air, such as in the shop or warehouse for comprehensive local exhaust ventilation or so that the fuel is not easy to accumulate, which does not exceed the maximum allowable concentration of combustible materials; preventing run, run, drip, leak; for those interactions can produce flammable gas or vapour of goods should be isolated, separate storage. Such as calcium carbide and water contact will produce acetylene gas interaction, so you must take the moisture-proof measures to prohibit water pipes and hot water pipe with carbide library and so on.

3. cut off the air. If necessary, you can make the production under vacuum conditions, equipment container filling inert media protection, such as water into carbide-acetylene generator in the feed, you should take the lazy media nitrogen purge; fuel container repair welding (welding) with inert media replacement. You can also cut air storage of combustibles, such as sodium in kerosene, phosphorus deposits in water, carbon disulfide used water storage, etc.

4. prevent formation of new combustion conditions, prevent the expansion of the fire. Set the flame devices, such as acetylene generator set water tempering on preventing, or underwater gas cutting time at cutting torch and hose set arrestors between, in the event of tempering, prevents flames into the acetylene tank, or prevent the spread of flame in the pipeline; in the shop or warehouse built firewall, or in the buildings between the fire separation, in the event of fire, so that it cannot form new combustion conditions, thereby preventing the expansion of their scope.

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