Tuesday, December 21, 2010
【 Weak current College 】 ethanol gasoline to bring about new issues of fire safety
Ethanol gasoline is gasoline components oil press volume ratio to a certain percentage (10% in China require) denatured fuel ethanol blending into a new kind of cleaner fuels. Are denatured fuel ethanol is through special equipment, specific process of high-purity anhydrous alcohol, is the deployment of a dedicated ethanol gasoline ethanol. Ethanol gasoline's label is the label in the gasoline before the letter "E", varieties and regular, i.e.: E90 #, #, # E93, E97 # E95.
Since ethanol gasoline combustion full, low emissions of harmful gases, reduce oil system impurities precipitation, etc., so the relevant State agencies argue in national promotion of ethanol gasoline.
Ethanol is both a good performance of organic solvents, it is also a denatured fuel, its deployment into ethanol gasoline in has many advantages, but also for its storage, transport, sale and use of fire protection, fire-fighting work poses some questions:
1, the stored procedure, oil storage ordinary gasoline is a non-water soluble mode a liquid, when using liquid injection, you should be on the use of fluoride protein, water film or film-forming protein foam liquid oxygen; when the use of liquid injection foam extinguishing, should use fluorine protein, water film or film-forming foam liquid egg fluoride.
While storing ethanol gasoline, you must use anti foam liquid and for fire extinguishing system selection has changed. On the non-water soluble mode a liquid fuel fixed roof tank, you can use fluid, liquid, or half-liquid injection foam fire extinguishing systems; for ethanol gasoline of a fixed roof tank, you should use liquid or sprayed half under water-foam fire extinguishing system. This requires the original liquid injection foam fire extinguishing system of the storage tank to be transformed, into a half-liquid or liquid spray extinguishing systems on. On the new depot is selected under liquid design in spray foam fire extinguishing system.
2, in the transport and use, the original transport vehicles equipped with foam fire extinguishers, also need to adjust the best choice is the ABC class dry chemical fire extinguisher. Because oil system failure caused by the fire, the role of the foam fire extinguishers. According to the construction of fire extinguishers configuration design code, car parking is equipped with a fire extinguisher cannot use foam fire extinguishers, originally equipped with application of the foam fire extinguishers at the same level of ABC class dry chemical fire extinguisher replacement. For ⅰ underground garage, class ⅰ garage, set foam spray system, with the foam liquid due to reasons of ethanol fuel should be replaced by a liquid resistant foam.
3. in the sales process,
Ethanol gasoline on gas station equipped with fire extinguishers type also put new demands. In accordance with the vehicle refueling station design and construction specifications of each of the two dispenser configuration not less than 1 only 4kg extinguishers and 1 only extinguishers now so do you need the actual fighting. Each of the two dispenser shall be equipped with 2 4kg extinguishers, used a 4kg extinguishers, replacement foam extinguisher.
4, for the fire forces on duty, responsibility area have oil or gas station, in the original alternate ordinary bubble, you should spare liquid resistant foam. Fire inspection personnel in fire inspection is also responding to the emergence of ethanol gasoline attention and urge relevant units and personnel replace the realistic fire extinguishing agent.
Anti foam fire for ethanol, but also to gasoline fire, but ethanol and gasoline by a certain percentage of the mixture to foam liquid fire extinguishing performance still lack clear test results, so for anti foam is truly effective extinguishing fire ethanol gasoline, has yet to be national authorities carry out experimental tests.
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