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What will cause the gas tank to explode? What to do when the gas tank is on fire and explodes?

This morning, the news of gas tank explosion in Hangzhou attracted many people's attention. In fact, improper use of gas tank in daily life will cause explosion, causing personal injury and property loss. How to prevent the explosion of gas tank? What are the omens before the explosion of gas tank?

What would cause an explosion?

Cylinder over filling

This is the main reason for the explosion of steel cylinder. There are many specifications for civil liquefied gas tanks, such as 10kg and 15kg, but the filling volume of steel cylinders must not exceed 85%. Even if the cylinder is used normally, it may explode. When the "overweight" steel cylinder is affected by the high temperature of the sun, the baking of the stove or radiator, and the abrupt change of the indoor and outdoor temperature difference, it will increase the possibility of explosion. (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)

Cylinder combustion

The cylinder body is cylindrical, with pressure relief valve installed, it will produce bias. For example, lying on the back will make the air outlet of the pressure relief valve burn toward the ground. If the ground is cement, asphalt, slate, etc., the temperature of combustion will radiate to the cylinder body, making the cylinder part directly burned by the flame, and the liquefied petroleum in the cylinder will expand rapidly after being heated, which will cause explosion.

Scald the bottom of the bottle with hot water

In order to make liquefied gas fire prosperous, some users use hot water to scald and fire to bake steel cylinder, especially fire to bake steel cylinder, which will make steel cylinder lose its strength and easily lead to cylinder explosion. (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)

Cylinder work with defects

The cylinder is a pressure vessel, which must work under the condition of "strong physique and no defect". If it is used for a long time without inspection, maintenance and repair, the cylinder will be corroded, perforated and cracked, resulting in loss of compressive strength, and will explode in case of high temperature, extrusion or collision.

How long is the service life of gas tank?

The gas tank is not a permanent durable product. Its safe service life is only 15 years. During this period, regular inspection shall be carried out every 4 years to find out the existing defects. (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)

What are the signs before the gas tank explodes?

When the cylinder is lying on the ground and burning, it will explode in more than 4 minutes.

The color of the flame changes from orange to slightly white; the sound changes from a 'roar' to a slightly rapid 'hiss', which indicates that the cylinder is about to explode.

The flame and sound change for about 5-10 seconds. The sound and flame suddenly disappear and then explode. (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)

What to do in case of fire or explosion of gas tank?

When the gas tank is on fire, call the police as soon as possible and evacuate the people in the house in time. If the heating time of the gas tank is short, the valve of the gas tank shall be closed immediately and the power supply shall be cut off in time; if the heating time is long, do not close the valve immediately or use cold water to extinguish to avoid explosion.

Wait for the firefighters to arrive in a safe place, cool the gas tank evenly, and then put out the fire. Never pour the burning gas tank on the ground. Because the gas tank is burning on the ground, no matter whether the outlet is equipped with a pressure reducing valve or not, it will not explode in general, and the gas in the horizontal gas tank will flow out through the bottle mouth, expanding 250-300 times, causing high temperature during combustion, resulting in explosion of gas cylinder and personal injury.

If you accidentally knock down the gas tank in a panic, you must erect it in time.