【 Weak current College 】 petrochemical of fire fighting measures---Power By 【 China power house network 】

A, liquefied petroleum gas fire suppression
1, residential LPG cylinder fire fighting:
1), civilian fire LPG cylinders, if the angle is not on the cylinder, with good gloves, angle valve closes, the fire will go out. If the angle is broken, should promptly fight indoor levels of other combustion fire while trying to put the gas bottle is transferred to a secure area.
2), automobile shipping civilian fire LPG bottles, because the cylinder number, bottles and bottle of electrostatic spark between or with the vehicle exhaust pipe Mars met, cause a fire and explosion. First of all against other vehicles, not onlookers; at the same time to roadside tree trunks, ditch Kham to bunker, using large diameter DC gun fire. Fire close to the frontiers of person to his/her water to prevent dead.
3), large liquefaction petroleum (Groove) fire fighting
Larger LPG tank fire, usually because the tank welding does not meet the design standards, or collision of tank rupture causing gas leakage, flame and explosion. Such fires can use the following methods:
① cooling, prevent explosion: the key is to have plenty of cooling water and high pressure spray gun, water cannon. Cooling cylindrical storage tank and a fire cupping is a center within the adjacent 30m tank water strength 29.4Pa.min; cooling 30m water supply tank outside o 9.8Pa.min strength.
② cover up, ready to fire. LPG tank explosion, or other causes wall collapse, valve bent so that combustion air dispersion, up, down, and different directions of the storage tank irregular flames, difficult to find a real rupture. To fire brings certain difficulties, this requirement before the fire, exposure to fire barriers. Barriers to work for the clean-up.
At the same time eliminate external attack on arm. Organizational strength, ready to fire.
③ stop leak, controlled burning, closing valve to snuff out and eliminate fires.
II. chemical enterprises fire fighting

Chemical enterprises in the fire, the fire quickly spread to nearby devices, equipment, plant a big threat, if not timely control may result in equipment explosion, collapse of the severe consequences such as factory, you must seize the melee fighters of the fast-break.
1. technology of fire control: chemical plant fire burning with explosions, fast speed, high combustion temperature, comes alive, explosions, etc. You should use the following process steps:
① immediately closing valve cutting, use the continuity of the petrochemical production,
② at open valves and diversion. Open outlet valves, fire equipment within material safety seal device or gravel arrestor import safety tank for fire fighting.
③ mixing fire: high flash point of materials in the equipment, the equipment of the fire from the bottom to enter a certain amount of same cold materials or nitrogen, carbon dioxide, from top to bottom agitation is upper high-temperature liquid and lower-temperature liquid for heat, temperature dropped below the flash point.
The fire was weakened for fire suppression.
2, the correct decision cooling method: the fire brigade arrived at the scene, you need to be flame-direct effect of the pressure equipment for cooling, chemical fire, burning of pressure equipment subject to the direct effects of flame, the risk of explosion. Therefore, it is first necessary to understand the nature of the explosives, select offensive line. According to the direct effect of being flame pressure equipment location, height, diameter, shape, and the danger level, the right to decide the number of cooling method, water gun, gun positions and maintain uninterrupted cooling. At the same time on the nearby from the fire threat of devices should, where appropriate, the necessary cooling.
3 flow control, containment: on the scene in the chemical industry, there will be a lot of combustible, flammable material, resulting in large areas of flowing liquid combustion. Firefighters responding to the fire for flowed to contain anti-stream, typically ① construct containment directed on the ground to prevent burning liquid flow to spread high-temperature and high-pressure installations; ② flowing space pipe container, take off the fire valve cutting, cut off the source of the material, to prevent the formation of extensive or solid combustion; ③ for flowed underground channel, and if available the fire clay drainage; if the ditch embankment, segmented intercept and then to ditch Jet high-expansion foam or take such as fire extinguishing suffocation.