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valve-controlled relief valves
In industrial automation and all kinds of mechanical equipment, safety valve is a vital protection device, valve-controlled safety valve as one of its important branches, with its efficient safety function, widely used in hydraulic system, pneumatic system and other pressure vessels. This paper will introduce the definition, working principle, main function and application field of valve control safety valve in detail.
definition
Valved safety valve is an automatic pressure control device, its main function is to quickly discharge excess pressure when the system pressure exceeds a preset limit, thereby preventing equipment or vessels from exploding or other safety accidents due to excessive pressure. The valve control safety valve is usually composed of the valve body, valve disc, spring, sealing ring and adjusting device to maintain the safety and stability of the system.
Working principle
Set PRESSURE: THE valve disc of the valve is prepressed through the spring, and the opening pressure of the safety valve is set according to the required working pressure of the system.
Monitoring pressure: The valve-controlled relief valve continuously monitors the pressure in the system while the system is operating. Once the pressure exceeds the set point, the disc begins to lift under pressure.
Discharge PRESSURE: WHEN THE DISC IS LIFTED, THE EXCESS FLUID (gas or LIQUID) is quickly discharged through the relief valve, so that the pressure in the system is quickly reduced to a safe range.
Recovery state: when the system pressure drops back to the safe range, the restoring force of the spring makes the disc close again, preventing the fluid from continuing to leak and ensuring the normal operation of the system.
Main functions and features
Valve-controlled safety valves have a variety of functions and features that make them extremely valuable in industrial applications:
Quick response: The relief valve can complete the pressure release in a very short time, quickly reduce the pressure of the system, thereby preventing the occurrence of accidents.
High RELIABILITY: VALve-CONTROLLED SAFETY valves are usually designed with corrosion and wear resistant materials to ensure reliable operation in a variety of environments.
Flexible setting: users can adjust the opening pressure of the valve-controlled safety valve according to specific requirements to adapt to different system requirements.
Simple MAINTENANCE: THE valve control safety valve structure is simple, maintenance and replacement are more convenient, help to reduce maintenance costs and time.
Prevent OVERpressure: Valve-controlled relief valves EXTEND THE service life OF equipment by ensuring that equipment and vessels are not affected by overpressure.
Application field
Chemical INDUSTRY
IN the process of chemical reaction, storage, transportation, VALve-controlled safety valves to ensure the safety of reaction vessels and pipelines, prevent chemical leakage and explosion.
Oil and GAS
Valve-controlled safety valves protect equipment in oil and gas extraction, transportation and processing, ensuring safe operation and preventing accidents.
Food and beverage
In food processing and packaging equipment, valve-controlled safety valves ensure the safety of the production process and ensure food quality and safety.
Pharmaceutical industry
In pharmaceutical equipment, valve-controlled safety valves are used to ensure the safety and cleanliness of the production environment and protect the equipment.
Thermal and STEAM SYSTEMS
IN boilers, heat exchangers and other equipment, valved safety valves effectively prevent hazards caused by excessive steam pressure.
Manufacturing
In metal processing and other manufacturing processes, valve-controlled safety valves are used to protect pressure systems and pneumatic equipment to ensure smooth production.
Conclusion
Valve-controlled safety valve is an important device to ensure safety in industry and mechanical equipment. Through the understanding of their working principle, main functions and application fields, it can be seen that the valve-controlled safety valve provides the necessary protection to avoid potential safety hazards in complex and dynamic industrial environments. In the future, with the progress of technology, valve-controlled safety valves will continue to be developed in terms of intelligence and environmental protection, providing stronger support for improving industrial safety and efficiency. For enterprises, the reasonable selection and application of valve control safety valve is an important measure to ensure production safety and reduce equipment failure.
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