Analysis report of China's gas explosion accident in November 2017
I. Overall situation
起，共造成4人死亡， 67+人受伤。 1. As of November 30, 2017, @Gas Explosion WeChat public platform included a total of 94 gas safety ⎝⎛必赢真人娱乐⎞⎠, which caused 4 deaths and 67+ injuries. Among them, 65 were indoor gas explosions and detonations, and 29 were leaks and explosions.
|month||Number of indoor gas explosions||Number of outdoor gas leaks and explosions||Total deaths||Total injuries|
|January and February||79||29||9||106|
起， 11月24日为全国发生燃气爆炸最多的一天，当天全国共发生7起燃气爆炸。 2. In November 2017, there were nearly 3 gas ⎝⎛必赢真人娱乐⎞⎠ per day on average. November 24 was the day with the most gas explosions in the country. On that day, there were 7 gas explosions in the country. In addition, in November, there were 6 gas explosion accidents every day on November 26 and November 12.
个省（含直辖市、自治区）发生过燃气爆炸， 排名前5名的省份为：广东、山东、浙江、广西、四川，和10月份相比，排名前5名的省份爆炸新闻数均较上月增长近一倍，详细情况如下图： 3. In November 2017, a total of 23 provinces (including municipalities and autonomous regions) experienced gas explosions. The top 5 provinces are: Guangdong, Shandong, Zhejiang, Guangxi, and Sichuan. Compared with October, the top 5 The number of explosive ⎝⎛必赢真人娱乐⎞⎠ in the provinces has almost doubled from the previous month. The details are as follows:
The top five names last month were Guangdong, Jiangsu, Jiangxi, Anhui, and Guangxi. Compared with last month, the rankings of Shandong, Zhejiang and Sichuan rose.
个城市发生过燃气爆炸，其中有14个城市11月份的燃气爆炸新闻数超过2起。 4. In November 2017, a total of 72 cities in the country experienced gas explosions, of which 14 cities reported more than 2 gas explosions in November.
Second, the indoor gas explosion deflagration ⎝⎛必赢真人娱乐⎞⎠ analysis
In November 2017, a total of 65 gas explosion deflagration ⎝⎛必赢真人娱乐⎞⎠ were collected in the gas explosion, an increase of 32 from the previous month, resulting in a total of 4 deaths and 67+ injuries.
1. Analysis of types of accident gas sources
起、天然气8起、其他1起，三种气源的爆炸新闻中， 液化石油气占比66%，为引发室内燃气爆炸的主要气源种类。 According to the type of gas source, there were 43 LPG explosion ⎝⎛必赢真人娱乐⎞⎠ in November, 8 natural gas and 1 other. Among the explosion ⎝⎛必赢真人娱乐⎞⎠ of the three gas sources, LPG accounted for 66%, which was the main cause of indoor gas explosions. Air source type.
2. Analysis of the location of the accident
Of the 65 gas explosion ⎝⎛必赢真人娱乐⎞⎠ in November, 40 occurred in residential houses, accounting for 62%; 11 occurred in merchants, accounting for 17%. In addition, there were 4 plant sites and 3 liquefied gas stations in November. , 1 gas tanker, 1 engineering truck, 1 fishing boat.
From the data, residential houses are still the main place for indoor gas explosions. During the peak period of winter gas explosions, you must pay attention to the safety of winter gas!
3. Leak cause analysis
Of the 65 indoor gas deflagration ⎝⎛必赢真人娱乐⎞⎠ in November, 25 cleared the cause of the leak. The specific analysis is as follows:
(1) Hose problems mainly include aging damage, loose air leakage. It is recommended to replace the hoses used by the cooker and water heater every 18 months, and install pipe clips at both ends to fasten them in place. It is recommended to use new stainless steel bellows instead of gas hoses.
(2) According to national regulations, the service life of gas cookers and natural gas water heaters is 8 years, and they must be replaced when they expire. The use of gas appliances beyond the deadline will cause problems such as flameout and failure of safety devices due to the aging of internal components, resulting in gas leakage.
(3) When purchasing a liquefied gas tank, it should be checked whether the gas tank has a cylinder inspection card and whether it has not been checked within the time limit. When using, always check the gas switch and rubber tube for looseness and damage.
(4) If multiple ignitions are unsuccessful in a short period of time, do not try to ignite again, but open the windows and doors quickly to ventilate, and then try to ignite after the gas is exhausted.
(5) Three suicides occurred this month, using gas to commit suicide, suspected of endangering public safety. Making irrational moves similar to the use of gas poses a threat to public safety and is likely to result in imprisonment.
4. Analysis of the cause of the detonation leak gas
Of the 65 indoor gas deflagration explosions in November, 36 clearly identified the cause of the deflagration explosion caused by a gas leak. The detailed data are as follows:
5. Analysis of time of accident
Of the 65 gas explosion ⎝⎛必赢真人娱乐⎞⎠ in November, a total of 20 occurred during the lunch and afternoon periods, which is the high incidence period of the accident.
Three, outdoor gas pipeline accident analysis
In November 2017, the gas explosion public account collected a total of 29 outdoor gas pipeline leaks and deflagration incidents, which occurred in 13 provinces (including municipalities). Of these, 15 were caused by barbaric construction by a third party, and 4 were caused by traffic accidents that damaged gas pipelines.
4. Top 10 gas explosion ⎝⎛必赢真人娱乐⎞⎠ in November
Guangzhou: Liquefied gas exploded in a house, 5 people were injured, 68 people were trapped, and multiple walls were collapsed
At 1.21 on November 2, a liquefied gas explosion occurred in a private house on the first floor of No. 24, Huangzhuang West Street, Taiyuan Town, Baiyun District. The explosion occurred in a room on the first floor, which affected an area of about 100 square meters. All the walls except the load-bearing wall were blown up. The doors and windows of the west house were blown up. The elevator doors on the first floor were also blown up and deformed. Many of the furniture in the rooms were blown out of the house. Live, the scene was a mess. It is understood that a total of 68 fire officers and soldiers were successfully evacuated in this accident. Five people were slightly injured and there was no danger to their lives. The cause of the accident is still under investigation.
[Explosion News] Guangzhou: Liquefied gas exploded in a house, 5 people were injured, 68 people were trapped, and multiple walls were collapsed
16-year-old employee of hot pot restaurant suspected gas explosion caused by improper dressing of gas
In the evening of the 9th, a non-rhodium pot hot pot restaurant in Xihu Town, Changhua County, Taiwan Province suffered an air explosion accident, which resulted in 7 people being injured for medical treatment. At that time, a 16-year-old student named Yang who was working for only 2 months was replacing a small barrel of gas under the table. It was suspected that accidental operation caused an explosion, which caused him and three customers of the family named Yang who were dining at the table to suffer burns. At the moment of the incident, Yang's father physically guarded the daughter, hugged her daughter and jumped up, causing 26% of the body's second-degree burns. He was taken to the hospital with his wife and daughter for emergency treatment.
[Explosion News] Suspected that the 16-year-old employee of the hot pot restaurant improperly changed the gas, causing a gas explosion, and his father took care of his daughter. A total of 7 people burned
Suspected of improper operation, a gas tank exploded in the garage of a community in Xingtai, one person died, and nearby doors and windows were damaged by shock waves
At about 4.30 am on November 27, an LPG tank explosion occurred in a garage in Wanfeng Mingzhu District, near Fumin Road, Qiaoxi District, Xingtai City, killing one person. According to the source, the suspect was caused by improper operation of the hydraulic gas tank during the production of meat clips downstairs in the community.
Horrible! Gas explosion in Baise, Guangxi, Guangxi, causing one death and one tragedy
On the morning of November 14, 2017, a fire broke out in a residential building in East Nama community, Baise City. The fire started on the second floor, but because of the flames accompanying the smoke, it quickly spread to the third floor and the fourth floor. After receiving the alarm, the fire brigade rushed to the scene to extinguish the fire, and the 110 civilian police at the scene also pulled the cordon and maintained order. A large amount of debris was scattered on the ground at the scene of the fire. An old man was suspected of being shocked and shocked. The cause of the fire was suspected to be caused by an explosion in the gas tank, which resulted in one death and one injury. The actual cause of the fire and the casualties are subject to further investigation and announcement by relevant departments.
[Explosion News] Scary! Gas explosion in Baise, Guangxi, Guangxi, causing one death and one tragedy
Quzhou, Hunan: A side-effect leak of a liquefied gas tanker truck exploded, killing two drivers and igniting surrounding houses!
At 3:21 am on November 5, a frightening scene occurred on the Huangtai Highway in Yingchun Town, Yizhang County, Chenzhou, Hunan. A tank truck full of liquefied gas suddenly rolled over while driving, causing the liquefied gas leak to explode. The fire instantly devoured the entire tanker truck and set fire to surrounding houses. The danger was serious. After receiving the alarm, the Yizhang County Public Security Fire Brigade rushed to the scene for fire fighting and disposal. In this accident, except that two drivers died on the spot during the process of overturning and detonating the tank truck, the accident did not cause casualties to the surrounding people.
[Explosion News] Chenzhou, Hunan: LPG tank truck leaked and exploded, 2 drivers were killed, and surrounding private houses were ignited!