In the steam turbine fire-resistant oil system, the connection between the valve seat 3D01A001 of the AST system and the plug-in solenoid valve is a key link in the stable operation of the entire system. This connection involves complex mechanical and hydraulic principles, and the sophistication of its design is directly related to the safe and efficient operation of the steam turbine.

1. The “past and present” of the valve seat 3D01A001 and the plug-in solenoid valve

The valve seat 3D01A001 plays a key control role in the steam turbine fire-resistant oil system. It is mainly used to accurately adjust the flow direction and flow rate of the fire-resistant oil, ensure the stability of the system oil pressure, and provide a reliable power source for the various actuators of the steam turbine. The plug-in solenoid valve is the core component for realizing the conversion between electrical signals and hydraulic actions. During normal operation, the solenoid valve receives the electrical signal sent by the control system, controls the position of the valve core through the action of electromagnetic force, and then determines the flow path of the fire-resistant oil.

From the development history, the early steam turbine fire-resistant oil system had certain limitations in control accuracy and reliability. With the continuous advancement of technology, high-performance valve seats such as 3D01A001 and plug-in solenoid valves have been developed and applied. The emergence of these new components has greatly improved the response speed and control accuracy of the system, ensuring the stable operation of the turbine under various working conditions.

2. Connection structure of valve seat 3D01A001 and solenoid valve

The connection between the two is first reflected in the physical structure. The valve seat 3D01A001 has specific installation interfaces, which are precisely designed and perfectly match the external dimensions and installation holes of the plug-in solenoid valve, and the solenoid valve is firmly installed in the specified position of the valve seat. This tight mechanical connection ensures that there will be no loosening or displacement between the two during the operation of the system, thereby ensuring the stability and reliability of the connection.

In terms of internal structure, the valve seat 3D01A001 and the solenoid valve are connected through specially designed oil channels. The layout of these oil channels has been carefully planned to enable the fire-resistant oil to flow smoothly between the two. When the solenoid valve is in different working states, the fire-resistant oil will flow to different parts of the valve seat along a specific oil channel according to the position of the valve core, thereby achieving precise control of the action of the valve seat.

3. Working principle of the connection method

Under normal working conditions, the solenoid valve receives an electrical signal from the control system. When the electrical signal energizes the solenoid valve, the valve core of the solenoid valve will move to a specific position under the action of the electromagnetic force. At this time, the flow channel of the fire-resistant oil is closed, and the valve seat 3D01A001 maintains a stable working state to ensure the stability of the system oil pressure. When the system detects an abnormal situation and requires emergency shutdown, the control system will send a power-off signal. After the plug-in solenoid valve loses power, the valve core returns to the initial position under the action of the spring force or other reset device, and the oil leakage channel of the fire-resistant oil is opened.

The fire-resistant oil quickly flows to the valve seat 3D01A001 through the channel opened by the solenoid valve, causing the control oil pressure of the valve seat to drop rapidly. Under the action of the change in oil pressure, the position of the valve core of the valve seat changes, thereby opening the oil leakage channel leading to the steam valve actuator of the turbine. The oil pressure in the lower chamber of the piston of the steam valve actuator drops rapidly. Under the action of the spring force and other reset mechanisms, the steam valve closes rapidly, cutting off the steam supply to the turbine and achieving emergency shutdown of the turbine.

The working principle of this connection method is based on precise hydraulic control and electrical signal conversion. Through ingenious design, the electrical signal can be accurately converted into hydraulic action, thereby realizing fast and reliable control of the turbine operating state.

4. Advantages and significance of connection

This connection method has many significant advantages. From the perspective of safety, the close connection and efficient cooperation between the solenoid valve and the valve seat 3D01A001 ensure that the steam supply of the turbine can be quickly cut off in an emergency, avoiding serious safety accidents caused by equipment failure or abnormal operating conditions. For example, when the turbine has dangerous conditions such as overspeed and excessive vibration, this connection method can respond quickly, shut down the turbine safely, and protect the safety of equipment and personnel.

In terms of control accuracy, the connection between the two can achieve precise control of the turbine fire-resistant oil system. Since the solenoid valve can respond quickly to electrical signals, the valve seat can accurately adjust the flow and flow direction according to hydraulic changes, so that the turbine can maintain a stable operating state under different loads and working conditions, improving the power generation efficiency and equipment stability.

In addition, this connection method also has good maintainability and scalability. During equipment maintenance, due to the relatively independent structural design of the plug-in solenoid valve and the valve seat, maintenance personnel can easily inspect, repair and replace individual components, reducing maintenance costs and downtime. At the same time, with the continuous development of technology, the system can achieve performance upgrades and functional expansions by replacing more advanced solenoid valves or valve seats.

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

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