more than 8 o'clock this morning, two people died and 55 people were injured in the gas tank explosion of Hangzhou restaurant, 12 of them were seriously injured. So far, the fire has been put out, but the losses caused are hard to remedy! Today, Xiaobian is going to teach you how powerful the gas tank is when it explodes?
Do you know the explosion power of a household gas can?
The gas tank is not a permanent durable product. According to the regulations on safety supervision of gas cylinders, the liquefied gas tank shall be inspected once every four years within 12 years after leaving the factory, and then once every three years. The liquefied gas tank used for 15 years shall be invalid.
Power equivalent to 150 kg TNT
The explosion of gas tank often brings two damages: first, the physical explosion occurs when the tank is broken, and the liquid petroleum gas in the tank expands 250-300 times to become gas, producing shock wave, just like the mine explosion; then, the gas petroleum gas mixes with the air rapidly, when its concentration in the air drops to 3% - 11%, in case of open fire, it will produce chemical explosion, bring explosion and combustion, and generate huge impact Shock wave endangers the safety of life and property. If people inhale this explosive gas, the respiratory tract and lung tissue will be burned.
The gas tank can be divided into several types according to its capacity. The domestic gas tank is generally 10 liter (about 15 kg). When it explodes, it is equivalent to the power of 150 kg TNT explosive, which is enough to blow up two floors of buildings.
It may be more intuitive to compare the power of a grenade: a grenade contains about 50g of TNT explosive. According to this calculation, the power of an explosion of a domestic gas tank (full tank) is equivalent to 3000 grenades. However, grenades usually rely on shrapnel to attack the target, and in order to enhance the explosive power, it contains not only TNT explosive, but also other explosive components. (this article is exclusively compiled by WYH, editor of sihai.com. If you need to reprint it, please indicate the source and source. Related article link: http://www.4hw.com.cn/life/anquan.html)
Safe use of gas tank:
Always pay attention to whether the air valve leaks.
Close the air valve after use.
The gas pipeline shall be replaced regularly (up to two years).
The gas tank shall be stored in a cool, dry and low temperature place, and special attention shall be paid not to be too close to the gas stove. It is recommended to store the gas tank more than 1.5m.
Don't bump into the gas tank.
Do not use it upside down.
When multiple gas tanks are used together, the bottle spacing shall not be less than 1 m.