Among the many protection systems of steam turbines, the AST (automatic shutdown) system plays a vital role. The combination of DSL081NRV plug-in solenoid valve and CCP115D coil is the key part of this system. They protect the safe operation of steam turbines with their unique advantages.

I. The importance and working principle of the AST system

During the operation of steam turbines, steam turbines may face various emergencies, such as overspeed, excessive bearing temperature, insufficient lubricating oil pressure, etc. If these abnormal conditions are not handled in time, they are likely to cause serious damage to the steam turbine and even cause major safety accidents. Therefore, the AST system came into being.

The working principle of the AST system is based on oil pressure control. During normal operation, the AST solenoid valve is energized and closed, maintaining the critical shut-off oil pressure to ensure that the valve of the steam turbine is in the open state, so that steam can enter the steam turbine normally to work. When an emergency occurs, the control system will quickly send a signal to open the AST solenoid valve without power. At this time, the emergency shut-off oil pressure drops rapidly, causing the oil motor unloading valve of each steam turbine valve to open and the cylinder working chamber to lose pressure, so that the steam valve is quickly closed, the steam supply is cut off, and the turbine is quickly shut down.

II. Features and advantages of DSL081NRV plug-in solenoid valve

DSL081NRV plug-in solenoid valve has many significant features that make it perform well in the AST system.

First, it has high reliability and durability. Its structure and materials are carefully designed to withstand the high temperature and high pressure environment during the operation of the turbine, ensuring that it can still work stably and reliably under harsh working conditions. This high reliability and durability reduces the risk of shutdown caused by solenoid valve failure and improves the operating stability of the turbine.

Secondly, the DSL081NRV solenoid valve has a fast response capability. In an emergency, it can quickly receive the control signal and act, cut off the steam supply in time, and prevent dangerous situations such as turbine overspeed. This fast response capability is crucial to ensure the safety of the turbine.

In addition, the solenoid valve also has good sealing performance. It can effectively prevent oil leakage, ensure the stability of emergency shut-off oil pressure, and ensure the normal operation of the AST system.

III. Characteristics and advantages of CCP115D solenoid valve coil

The CCP115D solenoid valve coil works closely with the DSL081NRV plug-in solenoid valve in the AST system and plays an important role. The CCP115D coil has high electromagnetic performance and can generate sufficient electromagnetic force in a short time to make the solenoid valve act quickly. Its electromagnetic force is stable and uniform, ensuring the accuracy and reliability of the solenoid valve during the action process.

At the same time, the CCP115D coil generates less heat. Under high current or long-term operation, excessive heat generation of the coil may cause coil damage or performance degradation. The CCP115D coil effectively reduces heat generation and improves its service life and working reliability through optimized design and heat dissipation structure.

IV. Combination advantages of the two

The combination of DSL081NRV plug-in solenoid valve and CCP115D coil has shown many significant advantages in the AST system.

1. System reliability is greatly improved: The high reliability and durability of the two complement each other, ensuring that the turbine always maintains a stable working state during long-term operation. Even in the face of complex working conditions and frequent start-stop, the protection function can be reliably performed.

2. Rapid response to ensure safety: The combination can complete the action in a very short time and respond quickly to emergency situations of the turbine. In the face of serious faults such as overspeed and bearing damage, the steam valve can be closed within milliseconds to prevent the expansion of the accident, which greatly improves the operation safety of the turbine.

3. Efficient control and energy saving: Through precise control, the precise start-stop and load adjustment of the turbine are achieved, and the energy utilization efficiency is improved. At the same time, reducing the operating time of the turbine under abnormal conditions and reducing energy consumption are of positive significance for enterprises to reduce operating costs.

4. Compact layout and convenient installation: The combination has a compact structure and occupies a small space, which is convenient for installation and layout in the limited space of the turbine. Its standardized design makes the installation process simple, reduces installation time and workload, and reduces installation costs.

5. Easy maintenance and troubleshooting: In daily maintenance, components can be easily inspected, cleaned and replaced. When a fault occurs, due to its clear structure and single function, fault diagnosis is relatively easy, and the problem can be quickly located and repaired, reducing downtime and improving equipment availability.

In actual industrial production, the combination of DSL081NRV plug-in solenoid valve and CCP115D solenoid valve has been widely used in various types of steam turbines. After a long period of operation verification, the system operates stably and reliably, providing a solid safety guarantee for the production process of the power plant.

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