First, the indoor gas explosion case
On October 10, 2015, a liquefied gas leaking and deflagration accident occurred in a snack bar in Wuhu City, Anhui Province, causing 17 deaths and a direct economic loss of approximately 15.287 million yuan. The cause of the accident was the aging of the liquefied gas cylinders in the store, and the improper handling of the workers caused the cylinders to fall over. The pressure reducing valves and the angle valves fell off, and a large amount of liquefied gas was ejected, causing deflagration.
At 7 o'clock in the morning of January 1, 2016, a gas explosion occurred in a residential building in a certain district of Changsha, causing damage to six households. The cause of the accident was that the gas hose of the household was bitten by a mouse and caused a leak, and the leaked gas encountered an explosion in an open flame.
On April 4, 2016, a gas explosion occurred in a household in Anshan City, Liaoning Province, and the kitchen was seriously damaged. The cause of the accident was that the residents did not take care of the gas when they used the gas. The boiling of the fish soup spilled the flame and caused the gas to leak. As no one found it in time, a large amount of gas leaked and caused an explosion.
Second, the common cause of indoor gas explosion accidents
1. Improper installation of gas facilities, such as gas water heaters without installing flue or privately disassembling, loading, moving, and changing gas facilities;
2. The connecting hose is unqualified, such as the hose expires, aging, falling off, and damaged;
3, the user is not used properly, such as when using gas, no ventilation, unattended or continuous ignition can not cause flash explosion;
4. The gas facilities are unqualified. If the gas facilities or equipment exceed the service life, the liquefied gas cylinders are not detected or scrapped (screw bottles), and the cylinder pressure reducing valves are unqualified;
Third, the ten major gas points for preventing gas accidents
1. Use gas to ventilate. When using, be sure to open the doors and windows to keep the air flowing, and people are away from the fire.
2. Special circumstances should be deactivated. Smell the smell and stop using the gas, and check whether the gas facility is leaking; the ignition does not stop for a few seconds, and the gas is emitted to prevent the flash explosion from injuring people.
3. Close after use. After use, turn off the cooker switch, close the gas valve, and close the kitchen door.
4, gas hose to view. The length of the hose should be 0.5-2 meters. There should be no interface in the middle. Do not pass through the wall and go through the room. If it is damaged, leaked or used for more than 18 months, it must be replaced immediately. It is recommended to use a metal bellows with better safety and a service life of up to 10 years.
5. The expired burning appliances should be replaced. The service life of gas stoves and water heaters is 6-8 years; the design life of liquefied gas cylinders is 8 years, and must be tested every 4 years; the screw bottles have been scrapped; the service life of cylinder pressure reducing valves is 5 years. It is strictly forbidden to use expired or scrapped gas facilities and appliances.
6. Check for leaks. Apply soapy water to each port of the hose connection regularly (at least every three months). If there is a bubble, it will leak. It is forbidden to use an open flame to check for leaks.
7. Gas facilities should be installed. The gas pipeline shall be clearly set up, and the gas facilities and equipment shall not be wrapped and sealed; the ropes shall not be hung on the gas pipeline and the sundries shall be suspended.
8. Demolition and replacement should be professional. It is not allowed to dismantle the cylinder angle valve and pressure reducing valve without permission. It is not allowed to dismantle, install, move or change the gas equipment such as gas riser. If it needs to be changed, please apply to the gas company and the construction is carried out by professionals.
9, the cylinder should be used correctly. Do not lay, impact, heat, or expose liquefied gas cylinders. Do not dump the residual liquid of liquefied gas cylinders privately. Do not use or store liquefied gas cylinders in non-ventilated places such as basements or semi-basements.
10, the purchase of gas should be formal. Natural gas users should go to the gas company's business hall or designated purchasing point to purchase natural gas, and request a formal purchase gas invoice; liquefied gas users should call the city's liquefied gas business enterprise unified service phone to purchase liquefied gas, and request the bill. Please don't be greedy and cheap to buy cheap "black gas", so as not to be deceived.
Gas industrial and commercial users should also be equipped with gas safety administrators and operators, and must be trained before they are employed; gas-operated rooms must have good ventilation and smoke exhaust conditions, and gas-fired sites should be equipped with intact fire-fighting facilities and flammable gas concentration alarm devices. .
4. What should I do if there is a gas leak?
1. Immediately close the gas valve; 2. Open the door and window to ventilate; 3. Quickly evacuate the personnel; 4. Call the gas company for repair or alarm.
It is important to remember that in places where gas leaks, all sources of ignition are prohibited. It is forbidden to use telephones, switch electrical appliances, use remote controls, prohibit doorbells, knock metal objects, and prohibit the opening of exhaust fans and range hoods.
In September 2014, the city began to implement the gas user insurance system. Natural gas resident users and liquefied petroleum gas resident users pay 20 yuan and 10 yuan premiums each year. The cumulative loss of accident losses within one year is 3 million yuan and 1.5 million yuan respectively. Compensation. Users can contact the gas company to purchase.
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