The DSL081CRV plug-in solenoid valve plays a vital role in the turbine OPC (Overspeed Protection Control) valve set. The OPC valve set is an important part of the turbine protection system, which is designed to prevent the turbine from being damaged due to overspeed. The following is a detailed analysis of the role of the DSL081CRV plug-in solenoid valve in the turbine OPC valve set.

1. Basic characteristics of the DSL081CRV plug-in solenoid valve

The DSL081CRV plug-in solenoid valve is a component that controls fluid based on the electromagnetic principle. It generates magnetic force through the action of electric current, which drives the piston to move, thereby controlling the opening and closing of the valve connected to the valve body. This solenoid valve has the advantages of simple structure, high reliability and long service life, and is widely used in the field of industrial automation control.
<

2. Mechanism of DSL081CRV in OPC valve set

Overspeed protection

When the speed of the steam turbine reaches 103% of the rated speed (i.e. 3090rpm) or a load rejection occurs, the DSL081CRV plug-in solenoid valve receives an action signal and is energized. The solenoid valve opens, and the oil pressure of the OPC main pipe is released, causing the unloading valves on the actuators of the high-pressure regulating valve and the medium-pressure regulating valve to open quickly, so that each high-pressure regulating valve is quickly closed, thereby protecting the steam turbine.

This mechanism can quickly reduce or cut off the steam flow entering the steam turbine, prevent the steam turbine from being damaged due to overspeed, and ensure the safe operation of the unit.

By quickly closing the high-pressure and medium-pressure regulating valves, the DSL081CRV solenoid valve effectively prevents the steam turbine from overspeeding, avoiding mechanical damage and safety accidents caused by excessive speed. This protection measure is crucial in the operation of the steam turbine, especially in emergencies, and can respond quickly and protect the equipment.

Maintaining normal operation

During normal operation, the DSL081CRV plug-in solenoid valve is in a normally closed state with power off, maintaining the oil pressure of the OPC main pipe, ensuring that the oil pressure under the piston of the actuator of the high-pressure regulating valve and the medium-pressure regulating valve is established, so that the regulating valve is in a normal open state and the turbine can operate stably.

This normally closed state ensures the stability and reliability of the turbine during normal operation, and prevents the failure of the regulating valve caused by insufficient oil pressure.

By maintaining the oil pressure of the OPC main pipe, the DSL081CRV solenoid valve ensures the normal operation of the regulating valve, so that the turbine can operate stably at the rated speed. The maintenance of oil pressure is the basis for the safe operation of the turbine. Any fluctuation in oil pressure may cause the regulating valve to fail, thereby affecting the stable operation of the turbine.

System reset

When the speed of the turbine falls back to the safe range, the DSL081CRV plug-in solenoid valve will lose power and close again, the OPC main pipe will re-establish oil pressure, the regulating valve can be reopened, and the turbine will resume normal operation. This reset mechanism ensures that the turbine can resume operation quickly after the speed returns to normal, reduces the downtime caused by overspeed protection, and improves the operating efficiency of the system.

The reset process is rapid, ensuring that the turbine can resume operation as soon as possible after the speed falls back to a safe range. This rapid response capability is of great significance for ensuring the continuous operation of the turbine and reducing maintenance costs.

Improve system reliability

Usually, two OPC solenoid valves are installed in parallel, so that even if one fails, the other can still work normally to ensure the safety of the system. Parallel installation improves the redundancy and reliability of the system, reduces the risk of single point failure, and ensures the safe operation of the turbine at critical moments.

By installing two OPC solenoid valves in parallel, the system achieves dual protection, further improving the safety and reliability of the system. This design idea is widely used in industrial automation, and can effectively respond to various emergencies and ensure the stable operation of the system.

The DSL081CRV plug-in solenoid valve plays a key role in overspeed protection in the turbine OPC valve group, closing the regulating valve by quickly releasing oil pressure to prevent the turbine from overspeeding. At the same time, it keeps the oil pressure stable during normal operation to ensure the stable operation of the turbine. The reliability and safety of the system are further improved through parallel installation and double protection design. Regular maintenance and inspection of the working status of the solenoid valve is also an important measure to ensure its long-term stable operation.

When looking for high-quality, reliable solenoid valves, YOYIK is undoubtedly a choice worth considering. The company specializes in providing a variety of power equipment including steam turbine accessories, and has won wide acclaim for its high-quality products and services. For more information or inquiries, please contact the customer service below:

E-mail: sales@yoyik.com
Tel: +86-838-2226655
Whatsapp: +86-13618105229