How to use gas safely? The "four diagnostic methods" of observation, smell, questioning and palpation are useful! Save it now

Review expert: Luo Huachun, editor-in-chief of "Cities and Disaster Reduction"

At around 1 a.m. on March 14, the Emergency Management Bureau of Sanhe City, Hebei Province issued a situation report: At 7:54 a.m. on March 13, an explosion occurred at a business in Yanjiao Town due to a suspected gas leak, resulting in 7 deaths and 27 injuries.

Source | Sanhe City Emergency Management Bureau

Houses collapsed, glass shattered, vehicles damaged... It is understood that the cause of the explosion was initially determined to be a gas pipeline leak . This is not the first tragedy caused by a gas leak, and the continuous occurrence of safety accidents has also sounded the alarm for us.

Today, let us once again focus our attention on this gas which is not only a good partner of thousands of households but also the cause of many accidents - natural gas .

1

What exactly is the natural gas we are talking about?

There are many household appliances around us, among which gas stoves and gas water heaters are indispensable appliances in our lives, and they all require gas.

The gas we refer to in daily life mostly refers to natural gas and liquefied petroleum gas , which are also the most widely used gas sources in people's daily lives. Of course, there are other gas sources such as artificial gas and biomass gas .

Source | China Energy News

Gas has now replaced the mainstream heating methods such as burning coal and charcoal, which has promoted the convenience of life and the progress of cities. However, if you are not careful during use, gas may also become the fuse of tragedy.

2

What steps does gas go through from its source to thousands of households?

First, the upstream gas source . The quality may vary greatly, because the content of impurities such as sulfide, water, carbon dioxide and the calorific value are different, and the use effect is also very different. High-grade gas not only generates more heat per unit time, but also has a longer use time, and its safety can also be better guaranteed.

Source | China Gas Group

The second is the gas transportation link . China has a large area, a large population, and large regional differences in gas resource reserves. It needs gas pipelines that can be transported over long distances to ensure that gas is safely and effectively transported to thousands of households. However, in the actual pipeline laying process, because the pipeline is too long, problems may occur at each location. If they cannot be solved in time, it will affect the efficiency of the entire gas transportation. In addition, the long-term transportation of gas will also cause a certain degree of corrosion to the pipeline, which may have an adverse effect on the entire gas transportation system.

Source | Sohu

The third is the gas use link . Before the user receives and uses the gas, the engineering staff needs to effectively process the gas before the next step of distribution can be carried out. At the same time, if some residents, factories, and enterprises do not fully and accurately grasp the specific use of gas, some safety accidents caused by improper use may occur, posing a threat to people's personal and property safety.

Source | Sina

From storage, transportation to distribution to thousands of households, every link may cause gas leakage, so gas safety requires everyone's joint protection.

3

How to use gas safely?

Although gas is "flammable and explosive", it is not a terrible thing. As long as it is used scientifically and safely, it can be a good partner in our lives.

So from the perspective of the public, how can we use gas safely? Traditional Chinese medicine's "look, smell, ask, and palpate" can help.

"Watch" the gas meter : When the gas appliances at home are turned off, if the numbers in the last red box of the gas meter move, it can be determined that there is a gas leak.

"Smell" the odor : If there is a smell similar to rotten eggs in the kitchen or at home, it may be a gas leak. You need to check it in time to eliminate the hidden danger.

"Ask" situation : Family members should often remind each other to stay at home when using gas, and to turn off the gas stove switch and gas valve after cooking or leaving the kitchen.

"Cut" the leak : Apply some soapy water or detergent water to the suspected leaking place (hose, joint, pipe plug valve, etc.). If small bubbles appear and continue to increase, it indicates that there is a leak in that part.

In addition, the gas hose should be checked regularly for aging or looseness . If any abnormality is found, it is necessary to contact professionals for repair or replacement in a timely manner. When using gas, it is also necessary to maintain ventilation. In case of gas leakage, it is necessary to evacuate in time and contact the gas company, property company and 119 to report the leak after staying away from the leak site .

Gas has brought convenience to our lives, but the safety risks involved should also attract the attention of the whole society. Please keep this knowledge in mind and share it with more people~