23/05/2024

Design of multi-turn valve interlock: ensuring safety and reliability

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      Multi-turn valve interlock is a safety device widely used in industrial fields. They are widely used in petroleum, chemical industry, electric power and water treatment, and other fields. However, the safety and reliability of these valves during operation are critical, especially in environments with high pressure, temperature, or hazardous materials. Therefore, designing an effective multi-turn valve interlock system to ensure the safety of operators and the stable operation of the system has become an important task in engineering design.

      1. The importance of multi-turn valve interlock system

      The core purpose of the multi-turn valve interlock system is to prevent misoperation, thereby avoiding possible accidents. For example, an interlocking mechanism prevents accidental closing when the valve is open and vice versa. In addition, the interlocking system ensures that valves remain closed during maintenance operations, thus ensuring the safety of maintenance personnel.

      Multi-turn valve interlock

      2. Key elements

      The key adopts a unique coding method and carries corresponding mechanical information. Each key has a unique code, which is consistent with the code in the key cabinet and the code of the corresponding controlled facility. Through the transmission of keys, the system ensures that the operator opens, closes or isolates the corresponding controlled equipment in accordance with the predetermined procedure. Otherwise, subsequent operations cannot be carried out, which can effectively prevent erroneous operations on another system when one system is running. Operation; solidify various on-site process requirements into the system's procedures. No matter whether the on-site operators have undergone strict training or not, and whether they are in normal working condition or not, the system is forced to follow the established sequence when authorized. operation, thereby completely avoiding the occurrence of misoperation accidents.

      3. Design considerations:

      Safety: The primary consideration in the design of the multi-turn valve interlock system is safety. The design should meet relevant safety standards and specifications, and take into account the system's reliability, ability to prevent misoperation, etc.

      Reliability: The reliability of the multi-turn valve interlock system is crucial to the normal operation of the system. The design should take into account factors such as the life, stability, and anti-interference ability of the interlocking mechanism to ensure long-term stable operation of the system.

      Flexibility: The design of the multi-turn valve interlock system should have a certain degree of flexibility and be able to adapt to different process requirements and operating scenarios. The design should take into account factors such as system scalability, compatibility, and adaptability.

      Maintainability: The maintenance of the multi-turn valve interlock system is crucial to the long-term stable operation of the system. The design should take into account factors such as the system's ease of maintenance, fault diagnosis, and repair capabilities to reduce maintenance costs and reduce downtime.

      The design of multi-turn valve interlock is an important part of ensuring the safe operation of industrial systems. The safety and reliability of interlocking systems can be achieved through sound design principles, key elements, and design considerations. During the design process, attention should be paid to considerations such as safety, reliability, flexibility and maintainability to meet the needs of different process requirements and operating scenarios. Only through scientific and reasonable design can the stable operation of the multi-turn valve interlock system be ensured and the safety and reliability of the industrial system guaranteed.

      mia
      globalnudango@shndg.cn

      #1779 Reply
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        #1780 Reply
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