According to CCTV news, at about 9 o'clock on September 11, an explosion occurred near the Baitengtouyi Hotel in Doumen District, Zhuhai City. The local firefighting team dispatched 4 squadrons, 11 fire engines and 55 firefighters to rescue.
According to the video taken by netizens, the fire in many shops on the first and second floors of the hotel was serious, and the fire department and other departments had arrived at the scene to deal with the fire. Many citizens were onlookers at the scene, during which a second explosion was suspected in the shops.
Later, CCTV News updated the news that the explosion was a gas explosion, which caused varying degrees of damage to surrounding shops and residential buildings. Fire, medical, emergency and other departments have been there for the first time.
Because coal gas contains combustible gas and toxic gas carbon monoxide in its composition, there is a greater risk of flammability, explosion and poisoning. Gas explosion is a rapid combustion process in which coal gas and combustion-supporting gas are mixed at a certain concentration under the action of ignition energy, or a process in which gas causes a closed shell to rupture under overpressure. When the gas burns, the flame is large, the temperature is high, and it is easy to spread.
What’s more frightening is that gas tank explosions often cause two damages. The first is a physical explosion when the tank body ruptures. The liquid petroleum gas in the tank instantly expands 250 to 300 times to become gaseous, generating shock waves, just like a landmine explosion; LPG quickly mixes with air. When its concentration in the air drops to 1.5%-9.5%, it will produce chemical deflagration when it encounters Mars and produce a huge shock wave. If people inhale this flammable gas in large quantities, they will be shocked and lose consciousness. Cerebral hypoxia died.
The gas explosion in Zhuhai City is really heartbreaking, causing huge casualties and loss of property. Gongmin.com can only remind everyone to pay attention to preventing gas leakage when using gas. It is best to install a combustible gas sensor in the gas use area to monitor the gas concentration in the air in real time. Once an abnormal concentration is found, take appropriate measures in time to avoid loss and The occurrence of dangerous accidents.
At the same time, remind everyone to pay attention to prevent gas leakage, such as the following points:
1. After using gas, be sure to turn off the cooker switch and gas pipe valve at the same time to prevent accidental gas leakage and cause fires and other accidents.
2. When using gas for a long time, it must be ventilated. If you find any smell near the kitchen, please open the window to ventilate immediately, and call in time to report the leak. At this time, open flames are forbidden to enter the area, and do not turn on or off the lights to prevent gas explosions caused by electric sparks.
3. Always check whether the hose connection is fixed with a clamp and whether the hose is aging. If the hose is found to be aging, it needs to be replaced with a new hose in time.
The hot fuel in the gas generator in the gas production and use system, the red furnace wall, the electrical equipment that does not meet the explosion-proof requirements, and the short circuit of the wire, iron impact, friction, maintenance of open flame, lightning strike, static electricity, spontaneous combustion of sulfur, cigarette butts, etc. Both may become ignition energy.
Fires often start in small places, and a little carelessness can lead to catastrophes. Safety awareness in daily life is very important. From the live video, we can see that there are many onlookers not far from the fire. You must know that to "watch the bustle" at the fire scene is to put yourself in danger.
Onlookers watching the fire site may be harmed by the following aspects:
1. Fire-fighting vehicles that extinguish fires and deliver water are fast and frequent. Onlookers are often in the fire-fighting passage and focus on fighting the fire, which is likely to cause traffic accidents.
2. The house in the fire may collapse at any time. It is close to onlookers. Once it collapses, accidents are inevitable.
3. Some factories, warehouses, and oil and gas stations catch fire. The chemical hazards stored inside are prone to explode, causing the building to collapse. The explosion will cause the building and container fragments to fly around, which may cause casualties.
4. Flying fire is easy to produce on the fire scene, igniting the clothing and hair of the onlookers, and may also cause new fire spots, which will surround the onlookers and be threatened by the fire.
5. Fires in many factories and warehouses, especially the warehouses for corrosive and toxic substances of chemical companies, will cause pipeline rupture, valve damage, container leakage, etc. to accompany the fire. Sometimes a large amount of toxic gas is generated, which poisons the onlookers or even causes death.
