Ask what kind of fire extinguisher is used for acetylene combustion

1. The cylinder valve has burned out and cannot isolate the gas source - measures: continue to use multiple bottles of dry powder fire extinguishers to extinguish the fire and cool it until there is no ignition energy;

2. The acetylene cylinder is connected to the leather tube for combustion-measures: the operator quickly folds the gas tube to reduce the outgas. Cooperate with it to use a dry powder fire extinguisher to extinguish the fire, and finally close the gas cylinder valve;

3. The acetylene cylinder valve ignited and leaked by electric welding sparks - measures: use a fire blanket to cover the acetylene cylinder valve to isolate the air. Stop electric welding operations, overhaul pressure gauges and gas cylinder valves.

1. If it is a gas bottle burning outside the fire, just use the suffocation method to extinguish the fire, use a wet quilt, etc., if the scene is not completely wet with a few pieces of clothing, cover it, and then close the valve valve; If the tempering valve is damaged, it is forbidden to close the cylinder valve before the flame is extinguished to prevent the tempering from combustion.

2. If the burning in the bottle has occurred, the non-volunteer firefighters and professionals should quickly disperse, and the volunteer firefighters should use the fire hydrant to shoot water to cool the gas cylinder in a lying position to prevent the first injury to the personnel (Note: the water gun should be evenly cooled by the flowering water gun).

3. It is best to use carbon dioxide to extinguish the fire at the root of the flame, and the current business of ABC dry powder fire extinguisher may contain other impurities in the fire extinguishing agent for the sake of profit.

With carbon dioxide fire extinguishers, acetylene is gaseous, with dry powder has no effect.

Acetylene gas ignition cannot be extinguished with foam fire extinguishers. Acetylene bottles that have just caught fire can be extinguished with dry powder fire extinguishers and carbon dioxide fire extinguishers. When these fire extinguishers cannot be extinguished, the burning acetylene bottle can be cooled with water to inhibit the reaction speed inside the acetylene bottle and let it burn out on its own.

Acetylene is a gas, which can produce a lot of heat when burning, and at this time, pouring water will have a counterproductive effect, so carbon dioxide and dry powder fire extinguishing agents are generally used.

Notes:

1. Fire extinguishers should be avoided in transportation and storage, such as upside down, rain, exposure, strong radiation and contact with corrosive substances.

2. The storage environment temperature of the fire extinguisher should be in the range of -10 45.

3. The place where the fire extinguisher is placed should be kept dry and ventilated to prevent the cylinder from being corroded by moisture. Sunlight exposure and strong radiant heat should be avoided so as not to affect the normal use of the fire extinguisher.

4. The fire extinguisher shall be inspected regularly according to the requirements and inspection cycle specified by the manufacturer.

5. Once the fire extinguisher is opened, even if it does not spray much, it must be refilled according to the specified requirements, and the refilling should be carried out by the professional maintenance department according to the requirements and methods specified by the manufacturer, and the variety, weight and driving gas pressure of the fire extinguishing agent shall not be changed at will.

6. If the fire extinguisher is found to have problems after functional inspection, it must be entrusted to a maintenance unit with maintenance qualifications to carry out maintenance, replace the damaged parts, carry out hydraulic test on the cylinder, and refill the fire extinguishing agent and driving gas.

The maintenance unit must strictly implement the fire extinguisher scrapping system. The fire extinguisher should be tested for water pressure every five years and before each refill, and the main pressure parts, such as the head, cylinder, etc., should be tested for water pressure, and only those who pass the fire extinguisher can continue to be used. After the test, it should be dried in time, and the inner wall should be checked, and there should be no obvious corrosion.

The hydrostatic test is unqualified, and it is not allowed to be repaired by welding and other methods.

7. The fire extinguisher repaired by the maintenance department shall have the mark approved by the fire supervision department, and the name of the maintenance unit and the date of maintenance shall be noted.

8. Whether the fire extinguisher has been used or not used, from the production date (each fire extinguisher has a production date on the cylinder), it must be sent to the maintenance unit for maintenance after reaching the specified maintenance period, and the fire extinguisher that reaches the scrapping age must be scrapped, and the fire extinguisher that fails the hydraulic test of the cylinder in the maintenance must also be scrapped.

9. The management office must strengthen the daily management and maintenance of fire extinguishers. It is necessary to establish a "fire extinguisher ledger" to register the type, configuration quantity, installation location and maintenance management of the person responsible; Clarify the responsibilities of the person in charge of maintenance management.

10. The management office should check the maintenance of the fire extinguisher at least once a quarter, including: the implementation of the maintenance responsibilities of the responsible person, whether the pressure value of the fire extinguisher is in the normal pressure range, and whether the safety pin and seal are intact.

The fire extinguisher can not be diverted for other purposes, placed firmly, without buried pressure, the fire extinguisher box shall not be locked, to avoid sunlight exposure and strong radiant heat, whether the fire extinguisher is within the validity period, etc., to check the effective state of the fire extinguisher to make a "fire extinguisher inspection record", archived for verification.

The fire extinguisher that can't be used when acetylene gas is on fire is water, which is mainly because our acetylene is a gas, which can produce a lot of heat when burning, and at this time, pouring water will have a counterproductive effect, so carbon dioxide and dry powder fire extinguishing agents are generally used.

Acetylene cannot be extinguished with water.

When acetylene burns, the temperature is relatively high, and the water vaporized by the shed liquid will decompose into oxygen and hydrogen under the action of high temperature, which will make the fire more violent. When acetylene catches fire, cut off the gas source, if it can't cut off the gas source, then it is not cracked and allowed to extinguish the leaking flame, we can use dry powder, foam, mist water and carbon dioxide.

to extinguish the fire. Acetylene is also known as calcium carbide gas.

Or wind coal, which is the smallest of the alkyne compounds, and is mainly used in industry, especially in welding metals. At room temperature, acetylene is a colorless and extremely flammable gas. Industrial acetylene due to the presence of phosphine.

impurities such as hydrogen sulfide, resulting in a garlic smell.

It is strictly forbidden to extinguish acetylene with foam fire extinguishers and carbon tetrachloride fire extinguishers.

1. Acetylene fire can not be extinguished by foam fire extinguisher: foam extinguisher is to extinguish the fire by isolating burning items and oxygen, and acetylene is the calcium carbide through the chemical reaction of the name of the hood, in this reaction process does not need oxygen, foam fire extinguisher is unable to extinguish acetylene fire.

2. Acetylene fire extinguisher cannot be extinguished by carbon tetrachloride fire extinguisher: acetylene density is smaller than that of carbon tetrachloride, and it can float on carbon tetrachloride to burn, but cannot play a role in extinguishing fire; And in a high-temperature environment, acetylene will react with carbon tetrachloride to produce toxic gases, and even **.

If acetylene catches fire, it can be extinguished with a dry powder or carbon dioxide fire extinguisher.

When acetylene is on fire, carbon tetrachloride fire extinguishers cannot be used, but dry powder fire extinguishers and carbon dioxide fire extinguishers can be used to extinguish them. Acetylene is the smallest alkyne compound, mainly used for industrial purposes, it is a colorless, extremely flammable gas at room temperature, and has a garlic smell, acetylene fires first cut off the gas source.

Acetylene is a very flammable gas, and if you accidentally catch fire, it is best not to extinguish the fire with a carbon tetrachloride fire extinguisher. Because acetylene is less dense than carbon tetrachloride, it can float on carbon tetrachloride and burn, so carbon tetrachloride fire extinguishers cannot extinguish the fire, but may allow the fire to spread.

At the same time, after acetylene ignites, the ambient temperature around it is high, and in a high-temperature environment, acetylene will react with carbon tetrachloride to produce toxic gases, and may even occur. In summary, using a carbon tetrachloride fire extinguisher to extinguish an acetylene fire is a very dangerous behavior and it is best not to try it.

The correct way to extinguish a fire with acetylene

If acetylene catches fire, the first thing to do is to cut off the gas source. If it is not possible to cut off the gas source of the car, then do not extinguish the flame at the leakage, if possible, move the container from the fire to an open area, and then use mist water, foam fire extinguishers, carbon dioxide fire extinguishers or dry powder fire extinguishers to extinguish the fire.