[Special Inspection of the Emergency Department 2022] 07-Some companies still lack risk awareness and there are loopholes in the preparation and review of operating procedures.
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This post was last edited by Swimming Fish in the Desert on 2022-7-18 11:12. Salt lake resources are a valuable asset of Golmud City, Qinghai. The world’s second largest salt lake, Chaerhan Salt Lake, is located in it, covering an area of more than 5,000 square kilometers. In addition to being magnificent, it is also rich in resources such as potassium, sodium, magnesium, and lithium. It has given birth to many salt lake resource development and comprehensive utilization companies in the city, including chemical and hazardous chemicals companies. Recently, the 7th Supervision and Inspection Team of the Major Hazardous Chemical Enterprises of the Ministry of Emergency Management went to Golmud City and conducted supervision and inspections on a number of hazardous chemical enterprises. The Paper reporter interviewed the team. “For hazardous chemical enterprises, 'risk recognition' is the first task, and the risk points that are prone to problems must be kept close to. ”The person in charge of the supervision and inspection team said that some companies still lack risk awareness. “The "magnesium" dream also requires strict safety bottom line Qinghai Salt Lake Magnesium Industry Co., Ltd. is one of the larger hazardous chemical companies in Golmud City. It has 11 sets of production units. The company involves many major hazard sources, including 4 first-level major hazard sources. The supervision and inspection team randomly inspected one of the company's production units, which involves the storage of vinyl chloride. Vinyl chloride spherical tanks are a first-level major hazard source. Experts found that the process operating parameters in the operating procedures for major hazard sources of vinyl chloride spherical tanks prepared by the company were unreasonable. In the operating procedures, for the "vinyl chloride temperature", the company's parameters were set to "<20°C". “What is less than 20℃? Can it be negative? ”Experts pointed out the problem, “This parameter should be set within a range. ”In addition, the operating procedures written by the company stated that the pressure setting value of the spherical tank is "<0.7MPa". “This is also wrong, 'set value' should be a fixed value. ”Experts said that vinyl chloride spherical tanks, as a first-level major hazard source for enterprises, have such common-sense problems in their operating procedures, indicating that the enterprise did not pay enough attention and there were flaws in the preparation and review. When experts inspected the company's central control room, they also found that the pressure data of the vinyl chloride spherical tank was not remotely transmitted to the DCS system. Experts explained that the DCS system is the core system of hazardous chemical enterprises, and all production links of the enterprise should be monitored and controlled in the system. This situation will lead to the lack of company personnel monitoring the pressure of the spherical tank. “The pressure data is not transmitted remotely to the control room, and information such as alarms and automatic interlocking is missing. ”Once an abnormal situation occurs, rapid response cannot be achieved, which may lead to accidents.
In addition, expert inspections found that the on-site toxic gas alarm device in the vinyl chloride spherical tank area cannot achieve an audible alarm. Once a toxic gas leak occurs, on-site personnel may not be able to detect it in time. As a toxic substance, vinyl chloride is very harmful to the human body. "Petrochemical Industry Combustible and Toxic Gas Detection and Alarm Design Standards" clearly stipulates the sound of alarms.: “Toxic gas detectors should be equipped with integrated sound and light alarms, and combustible gas detectors can be equipped with integrated sound and light alarms. The starting signal of the integrated sound and light alarm should use the first-level alarm set value signal. ” In addition, there are many problems with fire protection in the spherical tank area, such as partial pipe network damage in the tank cooling spray system, partial nozzle blockage, and insufficient equipment such as fire protective clothing and fire gloves in the mini fire station in the tank area. During the inspection process, fire experts in the supervision and inspection team randomly conducted simulation exercises * , it is set that a fire broke out in the spherical tank area, and the time it took for rescuers to get to the scene from the micro fire station was far more than 3 minutes, which did not meet the "3 minutes to arrive on scene" requirement in the "Construction Standards for Micro Fire Stations for Key Fire Safety Units (Trial)". Finally, experts summarized that the company's production equipment area alone had more than ten various accident hazards. The person in charge of the company said that they will sort it out item by item and make rectifications immediately.
[Emergency Department Special Inspection 2022] Summary, welcome to participate in the discussion and comparison inspection! ! ! ! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=3418729 (Source: Huahaichuanliu-Haichuan.com)
There are only one spherical tank, and it is a major source of danger. There are so many problems. 1. The process operation parameters in the operating procedures for major hazard sources of vinyl chloride spherical tanks are unreasonable. 2. The on-site toxic gas alarm in the vinyl chloride spherical tank area cannot achieve audible alarms. Once a poisonous gas leak occurs, on-site personnel may not be able to detect it in time. 3. The partial pipe network of the tank cooling spray system is damaged and some nozzles are clogged. 4. The mini fire station in the tank area is insufficiently equipped with fire protective clothing, fire gloves and other equipment. 5. The time it took for rescuers to get to the scene from the micro fire station was far more than 3 minutes. 6. The pressure data of the vinyl chloride spherical tank was not remotely transmitted to the DCS system.
I really want to see what a company with perfect production safety looks like. Experts who cannot find problems are not good experts. Whenever they come back empty-handed, they should write down a few hidden dangers no matter what.