In the steam turbine system of modern power plants, the Trip Solenoid Valve SUPPLY-110VDC is a key control element, which plays a vital role in the startup, operation and protection of steam turbines.

The working principle of the Trip Solenoid Valve SUPPLY-110VDC

The SUPPLY-110VDC solenoid valve is an electromagnetic control valve. Its working principle is to control the movement of the valve core by energizing and de-energizing the electromagnetic coil, thereby realizing the on-off of the hydraulic oil circuit. When the electromagnetic coil is energized, the electromagnetic force generated will suck up the valve core to make the hydraulic oil circuit conductive; when the electromagnetic coil is de-energized, the valve core will reset under the action of the spring and cut off the hydraulic oil circuit. This fast response characteristic enables the Trip Solenoid Valve SUPPLY-110VDC to achieve precise control functions in the control system of the steam turbine.

Role in the start-up process of steam turbines

In the start-up stage of steam turbines, the Trip Solenoid Valve SUPPLY-110VDC plays a vital role. When the steam turbine is started, the hydraulic oil pressure needs to be established through the gate solenoid valve to provide power for the steam inlet valve of the steam turbine to open. When the control system issues a start command, the gate solenoid valve is energized, the hydraulic oil circuit is connected, and the hydraulic oil enters the control cylinder of the steam inlet valve, pushing the valve open, allowing steam to enter the steam turbine and drive the steam turbine to rotate. This process requires precise control to ensure the smooth start of the steam turbine and avoid turbine vibration or other abnormal conditions caused by excessive or insufficient steam flow.

Role in the operation of the steam turbine

During the normal operation of the steam turbine, the gate Trip Solenoid Valve SUPPLY-110VDC is used to maintain the pressure stability of the hydraulic oil system. The hydraulic oil system is an important part of the steam turbine control system. It provides power for the speed control system, protection system, etc. of the steam turbine. The gate solenoid valve controls the flow direction and flow of the hydraulic oil to ensure that the hydraulic oil system can maintain a stable pressure under different operating conditions, thereby ensuring that the speed control system of the steam turbine can accurately control the speed of the steam turbine and enable it to operate stably at the rated speed. In addition, the gate solenoid valve can also quickly adjust the flow of hydraulic oil according to the load changes of the turbine to adapt to the operation requirements of the turbine.

Role in the turbine protection system

The gate Trip Solenoid Valve SUPPLY-110VDC plays a key role in the protection system of the turbine. When the turbine has abnormal conditions, such as overspeed, excessive vibration, low lubricating oil pressure, etc., the protection system will quickly send a signal to de-energize the gate solenoid valve and cut off the hydraulic oil circuit. This will cause the steam inlet valve of the turbine to close quickly, cut off the steam supply, and cause the turbine to shut down urgently. This fast-response protection mechanism can effectively prevent the turbine from being damaged due to abnormal conditions and ensure the safe operation of the turbine.

The gate Trip Solenoid Valve SUPPLY-110VDC has the following technical characteristics and advantages:

• High reliability: high-quality electromagnetic coils and sealing materials are used to ensure the reliability and durability of the solenoid valve in long-term operation.

• Fast response: It can quickly respond to control signals and realize fast on and off of the hydraulic oil circuit to meet the requirements of the turbine control system for fast response.

• Precise control: By precisely controlling the flow and pressure of the hydraulic oil, the turbine speed control system and protection system can accurately control the operating status of the turbine.

• Strong adaptability: It can adapt to different working conditions and environmental conditions, including high temperature, high pressure, vibration and other harsh environments.

The Trip Solenoid Valve SUPPLY-110VDC plays an irreplaceable role in the operation of the steam turbine in the power plant. It not only provides power support during the start-up of the steam turbine to ensure the smooth start of the steam turbine; it maintains the pressure stability of the hydraulic oil system during operation to ensure the stable operation of the steam turbine; it also plays a key role in the protection system, and can quickly cut off the steam supply in an emergency to protect the steam turbine from damage. Its high reliability, fast response and precise control make it an indispensable and important component in the steam turbine control system.

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