Recently, a direct-fired water heater in a residential building in Longgang District, Shenzhen, suffered a deflagration accident. The accident caused 80% of Mr. Chen’s wife’s severe burns. It is understood that the current water heaters sold in the market mainly include electric water heaters and gas water heaters, and the types of water heaters that have a deflagration accident belong to gas water heaters.
In daily life, how can the public avoid similar security incidents? The municipal fire department has made several suggestions for the public.
Water heater use method
"Many citizens have encountered the phenomenon that the water heater can't be hit. Most citizens will continue to switch valves and try to turn on the water heater. This is very dangerous." The relevant staff of the Municipal Public Security Fire Bureau introduced the main working principle of gas water heaters. Yes, the burner is started by the current, and the gas is continuously supplied to the burner for continuous combustion to heat the water. If the burner fails to start, although the gas valve will shut down, there will still be some unconsumed gas leaks. If the public repeatedly restarts the switch, it will cause more gas leakage. When the leaked gas reaches a certain concentration, a spark generated by the starter current will cause a deflagration accident.
The staff of the fire station reminded the public that if it is unable to start the water heater, it is forbidden to switch the valve continuously. The correct way should be to start the water heater every time after starting the water heater. If it is still not working properly after repeated attempts, check the wiring of the wire or the starter for normal operation, and if necessary, ask a professional staff for repair.
How to choose a water heater
"The accidents caused by water heater failures often occur in daily life, and most of them are caused by the unqualified quality of water heaters." The staff of the Municipal Public Security Fire Bureau introduced that when purchasing water heaters, it is necessary to choose good reputation and quality. Water heater brand, and buy from regular big shopping malls. When purchasing a water heater, it is necessary to pay attention to the authenticity of the water heater product to prevent the purchase of counterfeit and low-quality water heaters.
Safety should also be observed when installing and maintaining the water heater. When installing the water heater, it should be under the guidance of a professional or hire a professional worker to install, try to avoid unauthorized modification of the water heater. Install in strict accordance with the installation requirements of the water heater. Keep indoor ventilation during use. After use, close the gas valve in time to avoid gas leakage accident. At the same time, the gas pipeline, interface, valve and other parts should be regularly inspected, and the damaged parts should be replaced in time; when the fault occurs, the corresponding manufacturer should be contacted for after-sales maintenance. Huang Qiujun
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