The leaked gas diffuses naturally in the barbecue shop, and the concentration after mixing with the air reaches the explosion limit.
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Jianzhong001 source: Shenyang Emergency Management Bureau on January 15, 2022, the website of Shenyang Emergency Management Bureau published the investigation report on the explosion accident on October 21, Taiyuan South Street, Heping District, Shenyang.
It said that on October 21, 2021, a pipeline gas leakage explosion accident occurred in a barbecue shop at No.
In case of the electric spark generated when the mechanical temperature controller of the indoor electric ice display cabinet on the second floor is closed or disconnected, the explosion equivalent is about 80kgtnt.
222, Taiyuan South Street, Heping District, Shenyang, resulting in 5 deaths, 3 serious injuries and 49 minor injuries, The direct economic loss is about 44.25 million yuan.
The report pointed out that the direct cause of the accident was that during the gas grid connection construction of the barbecue shop, the construction personnel opened the inlet flange of the inlet pipe valve.
After completing the grid connection construction welding operation, the flange was not effectively sealed, and the tightness inspection of the flange port was not carried out after ventilation, resulting in the leakage of gas through the flange port, which lasted for 3 hours and 25 minutes.
