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    Home > Coatings News > Paints and Coatings Market > Fine chemical industry urgently needs self-control system escort

    Fine chemical industry urgently needs self-control system escort

    • Last Update: 2020-12-20
    • Source: Internet
    • Author: User
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    In view of the recent severe situation of fine chemical safety production, at the 2018 Meitler-Toledo Automated Chemical User Conference held in Changzhou from August 23 to 24, several experts suggested that fine chemical enterprises should pay attention to reaction safety assessment, and then use automated control systems to reduce the impact of out-of-control reactions and reduce safety production accidents.
    Wei Hongyuan, a professor at Tianjin University's School of Chemical Engineering, said at the meeting that fine chemical and pharmaceutical processes have the characteristics of many varieties, rapid replacement, relatively small output, and more intermittent and semi-intermittent production, the reaction temperature is prone to sharp increase, the reaction rate increased significantly, there is a risk of out-of-control explosion of reaction. Chemical enterprises must expand and upgrade the application scope and level of automation equipment in accordance with the relevant regulations of the relevant departments of the state in the safety risk assessment of fine chemical reactions. For example, when the target reaction is out of control, alarm, chain and other means are used to reduce the possibility of out-of-control reaction, and emergency release is used to eliminate the risk of overpressurized.
    Qingdao Institute of Safety Engineering, Dr. Zhang Fan also believes that in order to ensure safe production, fine chemical enterprises should be based on the results of the reaction risk assessment, for the reaction process of different hazards, the automatic control system and safety instrument system functional, reliability technology requirements, integrated design to match the automatic control system and safety instrument system, so that the chemical process safety control level to meet the national regulatory requirements.
    " with the help of information technology and artificial intelligence technology to assist abnormal conditions monitoring early warning and operation guidance, to achieve fine chemical enterprises on the alarm and abnormal in advance, real-time monitoring and analysis guidance, online analysis of the reasons and provide operational programs, greatly improve the disposal efficiency and success rate of abnormal conditions, effectively avoid the emergence of various emergencies or even unmuni planned parking, so that the production process monitoring and early warning from purely rely on experience to intelligent analysis stage. Zhang Fan said.
    In 2017, the former State Administration of Safety and Supervision issued the "Guide to Fine Chemical Safety Risk Assessment (Trial)", which requires that the production process of fine chemical industry must be set up a conventional automatic control system, the main reaction parameters for centralized monitoring and automatic adjustment, and depending on the process risk, the corresponding set alarm, chain control, discharge facilities, emergency control facilities, safety instrument systems and other self-control devices.
    Xubin, deputy general manager of Zhejiang Longsheng Group Co., Ltd., believes that fine chemical enterprises tend to pay more attention to the target response in the process research and development process, while neglecting the process safety. It is necessary to implement automated safety control measures, strengthen the whole process research process of process, operation, automation, equipment and management, and further optimize the self-control device, such as optimizing the production alarm parameters in DCS, increasing the fault self-diagnosis function, and perfecting the emergency parking function in SIS and ASD-ESD.
    It is also understood that, if the process risk level is assessed in accordance with the process assessment method more than 3 levels, often automation control investment is huge and not easy to pass the review, some enterprises will be in order to pass the review fraud, deliberately reduce the evaluation level. Industry insiders say the safety supervision of fine chemical companies still needs to be strengthened to further enhance the reliability of safety assessment.。
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