Experts remind that the post-earthquake resumption of production must attach great importance to the safety of installations and facilities. The Wenchuan earthquake caused great losses to the chemical companies in the disaster-stricken areas. Affected oil and gas wells, dangerous chemical storage tanks, etc. may cause secondary disasters due to aftershocks or improper disposal at any time. In the past few days, the national safety supervision departments at all levels have been dispatched to various chemical companies in the disaster-hit areas to strengthen the monitoring of chemical installations and hazardous chemicals after the earthquake. The safety supervision department emphasized that the safety supervision of chemical storage tanks and oil and gas pipelines is the most important task for preventing secondary disasters.
On May 13, the State Administration of Work Safety released the “Emergency Notice on Safe Production in Earthquake Relief Work†to strengthen monitoring measures in non-coal mines, hazardous chemicals and other key industries and fields to ensure safety. The “Urgent Notice†requires that the safety supervision agencies, coal mine safety supervision agencies, and enterprises in the earthquake-affected areas should strengthen contact with the local earthquake authorities, keep abreast of the earthquake prediction, and organize targeted inspections and analysis of earthquake disasters that may affect the region. The harm caused by safe production. It is necessary to carry out special monitoring of hazardous chemical storage tanks, warehouses and other key parts, strengthen patrols of hazardous chemicals along long-distance transmission pipelines, and find problems in time for disposal.
It is understood that the provinces of Gansu and Shaanxi that have been affected by the Wenchuan earthquake have taken actions to strengthen the key prevention and control of chemical storage tanks and oil and gas pipelines.
In an interview with the reporter, Xu Qingrong, professor-level senior engineer of the Fujian Provincial Government’s Safety Production Expert Group, pointed out that the reason why the country made such a decision is because the safety of the petroleum and chemical industries is directly related to people’s lives and property. Petroleum products, liquefied natural gas, and various hazardous chemicals, such as flammable, explosive, toxic and hazardous substances, will cause serious consequences if they leak. According to Xu Qingrong, after the Wenchuan earthquake, four 150 cubic meters of cryogenic liquefied natural gas (LNG) storage tank bases in CNPC Tianshui Gas Station had varying degrees of cracking and loose nuts. Among them, 1# and 3# storage tank tanks were cracked and peeled off from the cement surface of the external column foot. The nuts were loose and the damage was most serious. The low-temperature LNG tanks are cracked. If they continue to tilt, they may cause the tanks to fall to the ground and be damaged and leak LNG. People in the industry all know that LNG is an inflammable and explosive hazardous product with a flash point of -188°C and an explosion limit of 5% to 15%. When exposed to air, it will quickly vaporize, form a mist, and float in the air. In the event of an open flame, deflagration will occur. Once an accident occurs, the consequences will be disastrous. In addition, the occurrence of earthquake disasters is likely to damage oil and gas pipelines, long-distance pipelines for hazardous chemicals, and storage tanks.
An expert from the Fujian Petrochemical Industry Association told the reporter that after a major earthquake disaster occurs, there are also threats of large aftershocks, landslides, and mudslides. Under such circumstances, if the production and storage units of hazardous chemicals cannot ensure the safety of equipment, it is likely that Cause secondary accidents. The expert believes that in order to prevent the occurrence of secondary disasters, chemical companies in the vicinity of the epicenter should stop production for the time being to prevent the aftershocks from causing new disasters; mountain chemical companies should pay attention to changes in the mountain geology, especially in rainy weather, to prevent landslides and debris flows. Secondary disasters. All companies must check whether the factory buildings, warehouses, and lightning protection facilities are intact to prevent secondary disasters such as fires and explosions caused by the collapse of houses and damage to lightning protection facilities. Manufacturers with hazardous chemicals should pay attention to inspecting storage tanks, pipelines, etc. to prevent toxic accidents and radioactive materials from leaking and causing damage to the ecological environment.
Xu Qingrong also suggested that after the earthquake disaster occurs, enterprises should attach great importance to the safety supervision of installations and equipment and must not rush to resume production. He said that enterprises should strengthen inspections and inspections, from the production, use, storage, operation, transportation, waste disposal, and other aspects of hazardous chemicals, especially to all kinds of towers, hazardous chemicals pipelines, valves, pumps, and dangers. Chemical storage tanks, warehouses, factories and other comprehensive and detailed inspections. For enterprises that have long-distance pipelines for oil, gas, and hazardous chemicals, they must focus on detecting whether the valves and pressure vessels of oil and gas pipelines and long-distance pipelines for hazardous chemicals have been damaged or caused leaks. Collapse danger, find these phenomena to take timely measures to control; Stations, gathering pipelines, purification stations, etc. containing hydrogen sulphide should be stationed to prevent damage to pipelines, causing secondary accidents; involving liquid chlorine, liquid ammonia, etc. Manufacturers of toxic and hazardous chemicals should conduct comprehensive and systematic inspections to prevent leakage of materials and cause hazards; fuel tanks, toxic and hazardous material storage tanks that may cause fire, explosion, highly toxic or corrosive substances to leak out, etc. It is important to check the reliability of the protective dike around the tank to prevent the liquid from flowing around once the tank is damaged. Xu Qingrong particularly emphasized that the connecting pipe between the tank piping valve and the tank should be connected with a hose or flexible joint to prevent breakage during earthquake.
On May 13, the State Administration of Work Safety released the “Emergency Notice on Safe Production in Earthquake Relief Work†to strengthen monitoring measures in non-coal mines, hazardous chemicals and other key industries and fields to ensure safety. The “Urgent Notice†requires that the safety supervision agencies, coal mine safety supervision agencies, and enterprises in the earthquake-affected areas should strengthen contact with the local earthquake authorities, keep abreast of the earthquake prediction, and organize targeted inspections and analysis of earthquake disasters that may affect the region. The harm caused by safe production. It is necessary to carry out special monitoring of hazardous chemical storage tanks, warehouses and other key parts, strengthen patrols of hazardous chemicals along long-distance transmission pipelines, and find problems in time for disposal.
It is understood that the provinces of Gansu and Shaanxi that have been affected by the Wenchuan earthquake have taken actions to strengthen the key prevention and control of chemical storage tanks and oil and gas pipelines.
In an interview with the reporter, Xu Qingrong, professor-level senior engineer of the Fujian Provincial Government’s Safety Production Expert Group, pointed out that the reason why the country made such a decision is because the safety of the petroleum and chemical industries is directly related to people’s lives and property. Petroleum products, liquefied natural gas, and various hazardous chemicals, such as flammable, explosive, toxic and hazardous substances, will cause serious consequences if they leak. According to Xu Qingrong, after the Wenchuan earthquake, four 150 cubic meters of cryogenic liquefied natural gas (LNG) storage tank bases in CNPC Tianshui Gas Station had varying degrees of cracking and loose nuts. Among them, 1# and 3# storage tank tanks were cracked and peeled off from the cement surface of the external column foot. The nuts were loose and the damage was most serious. The low-temperature LNG tanks are cracked. If they continue to tilt, they may cause the tanks to fall to the ground and be damaged and leak LNG. People in the industry all know that LNG is an inflammable and explosive hazardous product with a flash point of -188°C and an explosion limit of 5% to 15%. When exposed to air, it will quickly vaporize, form a mist, and float in the air. In the event of an open flame, deflagration will occur. Once an accident occurs, the consequences will be disastrous. In addition, the occurrence of earthquake disasters is likely to damage oil and gas pipelines, long-distance pipelines for hazardous chemicals, and storage tanks.
An expert from the Fujian Petrochemical Industry Association told the reporter that after a major earthquake disaster occurs, there are also threats of large aftershocks, landslides, and mudslides. Under such circumstances, if the production and storage units of hazardous chemicals cannot ensure the safety of equipment, it is likely that Cause secondary accidents. The expert believes that in order to prevent the occurrence of secondary disasters, chemical companies in the vicinity of the epicenter should stop production for the time being to prevent the aftershocks from causing new disasters; mountain chemical companies should pay attention to changes in the mountain geology, especially in rainy weather, to prevent landslides and debris flows. Secondary disasters. All companies must check whether the factory buildings, warehouses, and lightning protection facilities are intact to prevent secondary disasters such as fires and explosions caused by the collapse of houses and damage to lightning protection facilities. Manufacturers with hazardous chemicals should pay attention to inspecting storage tanks, pipelines, etc. to prevent toxic accidents and radioactive materials from leaking and causing damage to the ecological environment.
Xu Qingrong also suggested that after the earthquake disaster occurs, enterprises should attach great importance to the safety supervision of installations and equipment and must not rush to resume production. He said that enterprises should strengthen inspections and inspections, from the production, use, storage, operation, transportation, waste disposal, and other aspects of hazardous chemicals, especially to all kinds of towers, hazardous chemicals pipelines, valves, pumps, and dangers. Chemical storage tanks, warehouses, factories and other comprehensive and detailed inspections. For enterprises that have long-distance pipelines for oil, gas, and hazardous chemicals, they must focus on detecting whether the valves and pressure vessels of oil and gas pipelines and long-distance pipelines for hazardous chemicals have been damaged or caused leaks. Collapse danger, find these phenomena to take timely measures to control; Stations, gathering pipelines, purification stations, etc. containing hydrogen sulphide should be stationed to prevent damage to pipelines, causing secondary accidents; involving liquid chlorine, liquid ammonia, etc. Manufacturers of toxic and hazardous chemicals should conduct comprehensive and systematic inspections to prevent leakage of materials and cause hazards; fuel tanks, toxic and hazardous material storage tanks that may cause fire, explosion, highly toxic or corrosive substances to leak out, etc. It is important to check the reliability of the protective dike around the tank to prevent the liquid from flowing around once the tank is damaged. Xu Qingrong particularly emphasized that the connecting pipe between the tank piping valve and the tank should be connected with a hose or flexible joint to prevent breakage during earthquake.
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