It is no less powerful than explosives, and it will explode twice. Gas accidents are indispensable!
Author:Beijing Science Center Time:2022.08.26
Audit expert: Yuyang Registered Safety Engineer, First -level Registered Fire Engineer Beijing Municipal Emergency Administration expert
Every summer, there are always some news of gas explosion. The chaotic accident scene was shocking, and the tragic encounter of the wounded was sympathetic. For the public, it is especially important to establish the safety of gas to use the safety of gas and master the common sense of gas use.
Source 丨 News Picture
As an indispensable energy provider in life, urban gas plays an extremely important role. In the family, it is inseparable from the cooking and cooking. However, while enjoying the convenience brought by gas, we must also be alert to its flammable, explosive, and prone to poisoning and the safety risks that come.
How terrible the gas explosion is
We often see the explosion of gas tanks (liquefied petroleum gas) in the news. In the cylinder, liquefied petroleum gas (LPG) coexist in both gas and liquid, and is in a relatively balanced state. However, the seemingly sturdy and durable steel cylinders are also hidden in many cases. Therefore, the professional department will strictly strictly regulates the pressure resistance of the cylinder, the temperature range of the use, and the amount of filling.
However, in actual use, the emergence of some special conditions is likely to cause the cylinder to explode. If the amount of liquefied petroleum gas in the cylinder exceeds the safety standards (that is, when the volume is 85%), there is a risk of explosion. When the cylinder is burned or not used in accordance with regulations, it will also cause the explosion to danger.
Source 丨 News Picture
The explosion of liquefied petroleum gas is very powerful, and it usually occurs twice. The first time was the physical explosion after the tank rupture, that is, the liquid petroleum gas in the tank instantly expanded to the original volume of 250-300 times to burst the steel can, which produced a great shock wave; the second was a chemical explosion, that is, that is, that is, The gas of the gaseous gas is quickly mixed with the air. When its concentration in the air reaches 1.5%-9.5%, the second explosion occurs when it encounters an open fire.
Keep security measures in mind
Therefore, in order to eliminate the above -mentioned safety hazards, the first thing that is the first is to buy regular products that meet relevant standards. At the same time, it is necessary to standardize the use of liquefied petroleum gas. If the angle valve is opened when the gas is used, the stove valve is turned on;
In addition to the risk of the physical and chemicals of liquefied petroleum gas itself, in daily use, we must also pay more attention to the use of gas cylinders, corner valves, connecting hoses and fuel utensils. In addition, you should say goodbye to those so -called "small tricks of life" as soon as possible. After heating, shaking, lying lying on the cylinders, you can make full use of "qi".
Source 丨 News Picture
For other pipeline gas, we must also raise awareness of safety and do not take it lightly. The stoves and hoses that meet the national standards should be selected. At the same time, it should be used in a reasonable life range, which needs to be replaced. The cooker should have an automatic flameout protection device. When used, keep in mind the stove switch and front valve in time in time. It is strictly forbidden to use rubber hoses. Special -to -be -dedicated fuel -connected hose such as stainless steel ripples should be selected. At the same time, the length of the hose should not be greater than 2 meters. The hose cannot cross the wall, doors and windows, ceiling and ground, nor can it be higher than the stove. Finally, I will teach you a simple way to detect whether the gas is leaked. You can use soap liquid to apply it in the fuel, connecting hose, valve, pipeline and joint, gas meter, etc. That is, the air leakage point.
In short, the visual, hearing, and smell are generally universal. Listen to whether there are "silk" sounds, and smell whether there is a smell of stinky eggs. See if the gas meter changes when the gas is not used. Safety.
What should I do if I find gas leakage?
What should I do if I encounter gas leaks in life? Some small Tips that can save lives must be kept in mind.
The gas explosion requires conditions. One is that the concentration reaches the scope of the explosion, the other is limited space, and the third is the source of ignition. If you smell something wrong in the kitchen, do not use bright fire to check whether the gas is leaked, and do not turn on the lights, range hoods and other electrical appliances. Because the gas concentration in the air is likely to reach the explosion limit at this time, the electric spark produced during the electrical switch may instantly cause the explosion. At this time, we have to do to keep calm, open the door and window to change the air in time, dilute the gas concentration of the indoor room, and destroy the conditions of the gas explosion. At the same time, turn off the gas valve, and then quickly go to the outdoor safety location to call the gas emergency phone call to wait for the help of the professionals.
What must be reminded here is not to call in the dangerous area.
Source 丨 News Picture
In addition to explosion accidents, the gas leakage caused by poisoning also occurs from time to time, especially in the bathroom in winter. Therefore, when using a gas water heater to take a bath, do not close the doors and windows, and keep the ventilation.
Convenient and comfortable living conditions are the prerequisite for happiness, but all happiness is based on safety. In daily use of gas, we must prevent luck, avoid excessive savings, check more gas equipment in the home, standardize the use of gas, and do not have more regrets.
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