At about 15 o'clock on December 16, 2023.
Nanban Community, Xiaodian District, Taiyuan City, Shanxi Province.
1. Self-built rental housing.
There was a carbon monoxide poisoning accident.
As a result, 29 people were injured.
Basic information of the accident unit.
Zhao, a villager from Nanban Village, Xiaodian District, Taiyuan City, Shanxi Province, built a new 5-story building on the homestead he applied for, with a total of 74 rooms and a construction area of 1,820 square meters, in July 2023.
In August 2023, Zhao named the self-built house "Cloud Accommodation" for long-term lease, and the tenants are mainly employees of Foxconn Precision Electronics (Taiyuan)** and surrounding units.
Exterior view of a self-built rental house.
In July 2023, Zhao installed his original two atmospheric hot water boilers in the self-built rental house where the incident occurred.
Boiler No. 1 is installed in a room on the west side of the first floor, and boiler No. 2 is installed in a stairwell on the first floor, using natural gas as fuel. Sliding doors are installed in both boiler rooms, and the sliding doors are closed when the boiler is running. The flue and chimney of the two boilers are made of carbon steel, and the connection between the boiler flue gas outlet and the pipeline is not welded and sealed, and the diameter is 0The 2-meter steel pipe is directly sleeved at the boiler flue gas outlet, and there is an obvious gap at the interface.
Boiler and flue connections.
The accident occurred and the rescue process.
On December 16, the local temperature was around minus 10, and 60 tenants were resting in their rooms at the time of the incident, most of which had their doors and windows closed.
About 2:50 p.m.
Hao, a tenant of the self-built house, returned to Yunduo accommodation and found that Wei and many other workers were unwell, so he immediately called the police for help.
At about 15:03.
Ambulance crews arrived at the scene one after another to carry out rescue.
At about 16:20.
Rescuers moved all tenants outdoors and took them to the hospital**.
As of 20 December, three of the 29 injured have been discharged from the hospital, while the remaining 26 remain in hospital for observation.
Preliminary analysis of the direct cause of the accident
After on-site investigation and expert opinions, it was preliminarily determined that the direct cause of the accident was that the boiler was installed in a closed room and there were no ventilation facilities, the combustion in the boiler was insufficient, and the flue gas contained a certain concentration of carbon monoxide, which overflowed through the gap between the boiler body and the flue, resulting in the poisoning of many tenants.
After examination at the hospital, the carboxyhemoglobin of the injured person exceeded the normal value, and carbon monoxide poisoning was diagnosed. The exact cause is subject to further investigation.
Winter weather is cold.
In an environment where doors and windows are closed and ventilation is reduced.
Use gas boilers, gas water heaters, coal stoves.
Some catering enterprises use it in violation of regulations.
Gas "energy ring", "windshield" and other products.
It can easily cause carbon monoxide poisoning.
All regions and relevant enterprises are requested to focus on rental houses, hotels, restaurants, canteens, dormitories and other places with the above risks, and carry out investigation and rectification of risks and hidden dangersStrengthen safety publicity and education to prevent carbon monoxide poisoning accidents.
Carbon monoxide is a colorless and odorless gas.
Not easy to detect. Winter is the season when carbon monoxide poisoning is high.
Take note of this safety tip!
Prevent carbon monoxide poisoning.
Don't be negligent.
Be wary of these common misconceptions and potential risks.
How to heat up safely in winter?
What to do if carbon monoxide poisoning occurs?Let's find out.
*: Ministry of Emergency Management of the People's Republic of China.
Editor-in-charge: Jiang Yujun.
Review: Wang Longlong.
Reviewer: Wang Cen Yu.
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