Thursday, December 23, 2010

【 Weak current College 】 gasoline use of fire safety-Power By 【 China power house network 】


First, fire and explosion-proof

Gasoline is flammable materials, and even contact tiny Mars could ignite. In low temperature conditions, the combustion of gasoline will still be able to quickly. Thus, in contact with and use of petrol, must strictly observe the following fire safety requirements.

1, storage tank and barrel petrol, near to no pyrotechnics. All fires such as lighters, matches, etc are forbidden to bring into the depot. Within the depot, garage with explosion-proof lamps and explosion proof switch, don't use open flames or lamp lighting. Do not leave gasoline and cotton, matches, detonators, explosives, oxygen, etc.

2. do not use iron tools percussion gasoline tanks, especially gasoline, empty barrel more dangerous. Because barrels filled with fuel and air mixture, and often is within the explosion limits (i.e. the upper explosion limit 1.7 2.6% and%), a case of the open fire, it could cause an explosion. It is calculated, in an empty barrel 200 liters of, when there are 10 to 35 grams of gasoline, but all these petrol and gas evaporation%, full of big drums, the experience of Mars would explode. In the most careful flip operation, the big drums remnants of gasoline will normally be in the potentially explosive range. It is forbidden to use the library in gasoline iron tool, and to prevent large barrels collision with each other, and do not wear shoes with Iron nails to gasoline library work, avoid iron touch spark fires.

3. When filling gasoline, the adjacent car, tractor of the exhaust pipe to wear a hat to launch fire prevention, save petrol vehicles is strictly prohibited to overhaul in the vicinity.

4. dip oil cloth, cotton waste oil, oil resistant gloves and so do not put in the depot, the garage, so that spontaneous combustion. Because these surfaces contaminated oil (especially oil) cotton waste, within a certain temperature oxidation occurs. Heat given off when the oxidation of the oil temperature rises, the cotton waste oxidizing speed will increase quickly. This constant temperature oxidation — — — — — oxidation reaction temperature makes the cotton waste oil temperatures reached its spontaneous ignition point, cause. Therefore, Depot, garage in the oily rags, cotton waste oil, oil resistant gloves and other things to focus on iron box with lid, timely cleaning recycling.

5. repair welding large barrels or tanks, to steam cleaning or drying container to not mate before welding. Repair welding time size bucket lid and tank mouth open to all. A more secure approach is to pour water and leave the welding Department.

6, petrol tank and the storage of petrol area, unduly wire passed. Oil tank, Treasury and wire distance to pole length 1.5 times.

7. takes note of the warehouse and operations sites, oil of ventilating steam to escape.

Second, prevent electrostatic

Gasoline in turn, fuel elements and oilseeds and other friction between the material will generate static, its voltage with high friction and increased (up to 10000 ~ 40000 Volt), when the voltage is increased to a certain extent, if any grounding conductor contacts, jump, start a fire. Electrostatic discharge typically to tank in oil, petrol pumps, petrol tank car in transit due to petrol oscillation, velocity will soon impact of gasoline tank or barrel staves, gasoline wash wool or synthetic fibre fabric, in the lightning in the transceiver petrol and other cases, the most vulnerable. In order to prevent electrostatic, to note the following:

1, all used for the storage, transmission and petrol tanks, pipelines, handling equipment, and so must have a good grounding device, it should not be greater than the ground resistance 10 Ohm. Grounding line thickness of 4 mm are available, cross section area of 48 square mm steel flat above; tank car of Earth wire with a diameter of 6 mm available wire rope; hose diameter of the Earth wire is available in multiple unit 3 mm copper wire. Grounding pole 1.5 or 2-inch pipe, 2 ~ 3 metres long, rust removing surface dirt, cut half a metre deep pit, the pipe vertical into the pit bottom of soil as grounding pole. Grounding and the ground electrode contact between columns should weld or bolt.

2, to oil or oil tank cars, the pipeline you want to insert the oil surface following or near the bottom of the tank to reduce the oil shock and friction with the air.

3, loading, unloading or delivery to the oil, not allowed to install on the tubing export silk, felt filter bag. Do not use gasoline wash wool or synthetic fibre fabric. If you must wash, the action you want to light, not violent wiping.

4, in special drying, air temperature is high season, more prone to electrostatic discharge. At this point, should strengthen the grounding device checks slowed perfusion oil speed, if necessary, to the grounding electrode pole around watering.

5, transporting petrol tank cars must have a grounding in chains. On a per-minute 0.5 cubic meters above the quick loading and unloading of tank car oil equipment, loading and unloading of oil, in addition to ensuring rail link to the oil tank of grounding line into the ground and not talking to 100 mm.

6. General in filling begins and to the capacity of 3/4, prone to electrostatic discharge. Therefore, for quick filling equipment, filling the start and end, appropriate control flow.

7. do not use plastic containers for storing gasoline.

3. the use of fire-fighting equipment

Gasoline library must be equipped with adequate fire protection equipment, such as a fire extinguisher, foam extinguishing car, fire sand bucket, bucket, fire is fire protection and fire evened, hook, hammer, and so on. Oil fire fighting to quickly. Never use water to put out the fire, because of gasoline than oil to water, spray of water will not be able to cover fuel, isolated from the air, but will increase the oil level, overflow container or the fuel-flows into a larger area, the combustion area enlarged.

When oil is on fire, fire extinguishing or wet fire was (quilts, cotton blanket or sacks) will fire pressure off. You can also use the cover of sand. Used sand fire, sand to sprinkle around the fire, the fire stop spread, then gradually surrounded by fire, the fire.
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