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Industry NewsLife gas explosion first off the valve or fire first
Time: 2019-11-27 View: 2101
A fire training video about whether to put out the fire or turn off the valve after a gas fire has attracted a lot of attention from netizens. In the video, a man in a white uniform claims to have put out the fire before closing the valve after a gas explosion. But today, has been "a consumer" online refute rumor!
1. Under the condition that the valve of the liquefied gas cylinder is intact, the first choice is to close the valve, the valve will be off the fire. The situation of "putting out the fire first, closing the valve later, otherwise it will backfire and lead to explosion" circulated on the Internet will not happen when the liquefied gas cylinder catches fire. Only when the gas line is on fire, if the valve is quickly closed, will cause the pressure in the pipe to drop rapidly, the pressure outside the pipe is greater than the pressure inside, will push the fire into the pipe to cause temper. When dealing with a fire in a gas line, firefighters will first slowly turn off the valve in the line to minimize the flame, then close the valve to extinguish the fire. This is to prevent tempering. The liquified gas cylinder body and the bottle mouth are small, relatively speaking the pressure is small, will not produce the pressure difference, and the pressure inside the liquified gas cylinder is greater than the outside.
2. If the valve of the burning LPG cylinder is damaged, it is not necessary to extinguish the fire. First, carry the LPG cylinder to the open area and stand there. If the burning LPG cylinder cannot be transferred in the residents´ home, the fire can be extinguished first, then the bottle mouth can be blocked with wet rags and other items, and sent to a professional LPG station for disposal.
3. If the liquefied gas cylinder is burned horizontally, the cylinder is easy to be heated by the flame. After reaching a certain temperature, the liquefied gas in the bottle is subject to thermal expansion, and the cylinder body is prone to physical explosion. Once again, in the case of unpredictability and no disposal capacity, to the first time to call the 119 alarm number, waiting for firefighters to be on the scene, do not let the burning bottle down.
If you see a blue flame, immediately run in the opposite direction. The explosion is likely to happen in seconds to tens of seconds!
24 hours for your service, if you need to install a large number of our professional engineering team for your service, please click online customer service or technical engineers for your answer 0755-23707415
Kaixin -- your fire service factory.
1. Under the condition that the valve of the liquefied gas cylinder is intact, the first choice is to close the valve, the valve will be off the fire. The situation of "putting out the fire first, closing the valve later, otherwise it will backfire and lead to explosion" circulated on the Internet will not happen when the liquefied gas cylinder catches fire. Only when the gas line is on fire, if the valve is quickly closed, will cause the pressure in the pipe to drop rapidly, the pressure outside the pipe is greater than the pressure inside, will push the fire into the pipe to cause temper. When dealing with a fire in a gas line, firefighters will first slowly turn off the valve in the line to minimize the flame, then close the valve to extinguish the fire. This is to prevent tempering. The liquified gas cylinder body and the bottle mouth are small, relatively speaking the pressure is small, will not produce the pressure difference, and the pressure inside the liquified gas cylinder is greater than the outside.
2. If the valve of the burning LPG cylinder is damaged, it is not necessary to extinguish the fire. First, carry the LPG cylinder to the open area and stand there. If the burning LPG cylinder cannot be transferred in the residents´ home, the fire can be extinguished first, then the bottle mouth can be blocked with wet rags and other items, and sent to a professional LPG station for disposal.
3. If the liquefied gas cylinder is burned horizontally, the cylinder is easy to be heated by the flame. After reaching a certain temperature, the liquefied gas in the bottle is subject to thermal expansion, and the cylinder body is prone to physical explosion. Once again, in the case of unpredictability and no disposal capacity, to the first time to call the 119 alarm number, waiting for firefighters to be on the scene, do not let the burning bottle down.
If you see a blue flame, immediately run in the opposite direction. The explosion is likely to happen in seconds to tens of seconds!
24 hours for your service, if you need to install a large number of our professional engineering team for your service, please click online customer service or technical engineers for your answer 0755-23707415
Kaixin -- your fire service factory.
