[Work Safety Exposure Platform] Inadequate management of Class A flammable and explosive materials, as well as insufficient fulfillment of the primary responsibilities for work safety
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Recently, the State Council Safety Committee organized 20 comprehensive inspection teams led by relevant officials from the member units of the committee to conduct random inspections on the work related to the special rectification of major safety hazards and supervision inspections in 31 provinces (autonomous regions and municipalities directly under the Central Government), as well as in the Xinjiang Production and Construction Corps. The inspection team, taking into account the specific conditions of various regions, conducted both open and covert inspections as well as random checks on enterprises in key industries and sectors. It provided guidance and support to these enterprises regarding safety production during their resumption of operations, and carried out thorough investigations to identify potential safety hazards. From February 27 to March 3, the 16th inspection team went to Changchun and Yanbian in Jilin to conduct inspections in key areas such as fire safety, coal mines, and hazardous chemicals. The inspection team found that some enterprises still have shortcomings in fulfilling their primary responsibilities for work safety. “There can be no talk of development without safety; manufacturing enterprises must operate while ensuring safety. ”The head of the inspection team said, \"Some minor defects may seem to have little impact; they might work fine even after 10,000 times, but an accident could occur on the 10,001st attempt. Therefore, companies must carry out safety measures thoroughly and meticulously.\" ” Inadequate management of Class A flammable and explosive materials: During this inspection, it was found that some hazardous chemicals-related enterprises also failed to properly fulfill their responsibilities regarding safe production. On March 1, the inspection team visited Changchun Juyang Gas Co., Ltd. (hereinafter referred to as “Juyang Company”). This company mainly produces dissolved acetylene. The company has 2 major hazard sources of level 4, namely the acetylene production unit and the acetylene storage unit. Acetylene belongs to Class A flammable and explosive hazardous chemicals; any problems in the production process can easily lead to accidents. The experts from the inspection team learned that, according to the company’s production schedule, production takes place only once every four years. “In cases like this, where production is suspended for a long time before resuming, inadequate and careless preparation can easily lead to problems. ”Experts from the inspection team pointed out. Experts found that the automatic venting pipeline at the top of Juyang Company’s acetylene tank was connected using hoses, whereas the design drawings specified that it should be made of carbon steel. “The strength of the hose is far inferior to that of carbon steel, and there may be issues with its strength; it should be constructed in accordance with the design specifications. ”Experts told reporters that companies cannot change design drawings arbitrarily; any significant changes require design verification, and the design drawings must be updated promptly. Furthermore, experts also found that the manual venting pipeline at the top of Juyang Company’s acetylene tank was not connected to the outside for discharge; in the event of a manual release during an emergency, an explosive mixture could easily form indoors, with consequences that would be disastrous.
It is unreasonable to install foam generators on the top of fixed-roof storage tanks. https://bbs.hcbbs.com/thread-3596427-1-1.html (Source: Huahai Chuanliu – Haichuan Network)
The oxygen detectors installed in the nitrogen cylinder filling room of Juyang Company also do not conform to the design drawings, as no oxygen detectors are specified for that room in the designs. According to staff from Juyang Company, an inspection team had previously pointed out that the nitrogen cylinder filling area lacked oxygen detectors, so the company installed two such detectors. “Oxygen detectors are installed in the nitrogen cylinder filling workshop primarily to monitor the oxygen concentration, in order to prevent workers from suffocating due to too low oxygen levels. ”Experts from the inspection team told reporters, “But the number of detectors to be installed cannot be decided by the enterprise itself; it needs to be determined through design.” ”In accordance with the requirements of the \"Guiding Opinions on Strengthening the Safety Management of Chemical Processes,\" any changes that occur in a company’s processes, equipment, instrumentation, electrical systems, utility services, spare parts, materials, chemicals, production organization methods, and personnel must be included in the change management process. Furthermore, in accordance with the requirements of the \"Code for Fire Protection Design of Petrochemical Enterprises\" (2018 edition), when utility pipelines are connected to pipelines or equipment containing flammable liquids, check valves should be installed on the utility pipelines that are used intermittently, along with isolation valves at their bases. However, the nitrogen purging pipeline connected to the inlet of Juyang Company’s acetylene low-pressure dryer lacks such check valves, which may pose a risk of acetylene gas leaking into the common pipeline network in case of an abnormal situation. Meanwhile, the sampling port at the inlet valve of the acetylene gas tank does not have a sealed sampling circulation system, which means there is a risk of acetylene leakage during sampling. Experts told reporters that according to the requirements of the \"Code for Design of Metal Piping in Petrochemical Industries,\" sealed circulation sampling systems should be used for media that pose extreme or high hazards, as well as for Class A flammable gases and liquefied hydrocarbons. The purpose of these regulations is to prevent such leakage risks.
Safety officers fail to wear safety helmets properly, and the erection of scaffolding does not conform at all to the established construction plans. https://bbs.hcbbs.com/thread-3596429-1-1.html (Source: Huahai Chuanliu – Haichuan Network)
Series summary post: https://bbs.hcbbs.com/thread-3605132-1-1.html (Source: Huahai Chuanliu – Haichuan Network)