【Daily Question】What determines the control oil pressure of a steam turbine? (Participation +2, Correct answer +10 wealth)

The control system of a steam turbine typically uses oil to transmit signals and as power to drive the actuators, which in turn open and close the control valves and the main steam valve. To ensure rapid and sensitive adjustment, a certain speed control oil pressure must be maintained. The commonly used control oil pressures for turbines include 0.4–0.5 MPa, 1.2–1.4 MPa, 1.8–2.0 MPa, and others. Generally speaking, a high oil pressure enables the control system to operate with high sensitivity, and reduces the size of the hydraulic actuators and throttle mechanisms. The speed control oil pressure has reached as high as 4.0 MPa in some cases. However, high oil pressure can easily cause oil leakage and fires. The lubricating oil pressure in a turbine is calculated during design based on factors such as the rotor’s weight, speed, the design of the bearing shells, and the viscosity of the lubricating oil, in order to ensure that a proper oil film is formed between the shaft journals and the bearing shells, as well as to provide sufficient oil for cooling purposes. Therefore, the lubricating oil pressure in turbines is generally set at 0.12–0.15 MPa. Excessively high lubricating oil pressure can cause oil leakage from the oil seal and bearing vibration. Too low oil pressure results in a poor oil film, and may even cause the loss of oil supply and damage to the bearing shells.

The control system of a steam turbine typically uses oil to transmit signals and as power to drive the actuators, which in turn open and close the control valves and the main steam valve. To ensure rapid and sensitive adjustment, a certain speed control oil pressure must be maintained. The commonly used control oil pressures for turbines include 0.4–0.5 MPa, 1.2–1.4 MPa, 1.8–2.0 MPa, and others. Generally speaking, a high oil pressure enables the control system to operate with high sensitivity, and reduces the size of the hydraulic actuators and throttle mechanisms. The speed control oil pressure has reached as high as 4.0 MPa in some cases. However, high oil pressure can easily cause oil leakage and fires. The lubricating oil pressure in a turbine is calculated during design based on factors such as the rotor’s weight, speed, the design of the bearing shells, and the viscosity of the lubricating oil, in order to ensure that a proper oil film is formed between the shaft journals and the bearing shells, as well as to provide sufficient oil for cooling purposes. Therefore, the lubricating oil pressure in turbines is generally set at 0.12–0.15 MPa. Excessively high lubricating oil pressure can cause oil leakage from the oil seal and bearing vibration. Too low oil pressure results in a poor oil film, and may even cause the loss of oil supply and damage to the bearing shells.

The control system of a steam turbine typically uses oil to transmit signals and as power to drive the actuators, which in turn open and close the control valves and the main steam valve. To ensure rapid and sensitive adjustment, a certain speed control oil pressure must be maintained. The commonly used control oil pressures for turbines include 0.4–0.5 MPa, 1.2–1.4 MPa, 1.8–2.0 MPa, and others. Generally speaking, a high oil pressure enables the control system to operate with high sensitivity, and reduces the size of the hydraulic actuators and throttle mechanisms. The speed control oil pressure has reached as high as 4.0 MPa in some cases. However, high oil pressure can easily cause oil leakage and fires. The lubricating oil pressure in a turbine is calculated during design based on factors such as the rotor’s weight, speed, the design of the bearing shells, and the viscosity of the lubricating oil, in order to ensure that a proper oil film is formed between the shaft journals and the bearing shells, as well as to provide sufficient oil for cooling purposes. Therefore, the lubricating oil pressure in turbines is generally set at 0.12–0.15 MPa. Excessively high lubricating oil pressure can cause oil leakage from the oil seal and bearing vibration. Too low oil pressure results in a poor oil film, and may even cause the loss of oil supply and damage to the bearing shells.

The control system of a steam turbine typically uses oil to transmit signals and as power to drive the actuators, which in turn open and close the control valves and the main steam valve. To ensure rapid and sensitive adjustment, a certain speed control oil pressure must be maintained. The commonly used control oil pressures for turbines include 0.4–0.5 MPa, 1.2–1.4 MPa, 1.8–2.0 MPa, and others. Generally speaking, a high oil pressure enables the control system to operate with high sensitivity, and reduces the size of the hydraulic actuators and throttle mechanisms. The speed control oil pressure has reached as high as 4.0 MPa in some cases. However, high oil pressure can easily cause oil leakage and fires. The lubricating oil pressure in a turbine is calculated during design based on factors such as the rotor’s weight, speed, the design of the bearing shells, and the viscosity of the lubricating oil, in order to ensure that a proper oil film is formed between the shaft journals and the bearing shells, as well as to provide sufficient oil for cooling purposes. Therefore, the lubricating oil pressure in turbines is generally set at 0.12–0.15 MPa. Excessively high lubricating oil pressure can cause oil leakage from the oil seal and bearing vibration. Too low oil pressure results in a poor oil film, and may even cause the loss of oil supply and damage to the bearing shells.

The control system of a steam turbine typically uses oil to transmit signals and as power to drive the actuators, which in turn open and close the control valves and the main steam valve. To ensure rapid and sensitive adjustment, a certain speed control oil pressure must be maintained. The commonly used control oil pressures for turbines include 0.4–0.5 MPa, 1.2–1.4 MPa, 1.8–2.0 MPa, and others. Generally speaking, a high oil pressure enables the control system to operate with high sensitivity, and reduces the size of the hydraulic actuators and throttle mechanisms. The speed control oil pressure has reached as high as 4.0 MPa in some cases. However, high oil pressure can easily cause oil leakage and fires. The lubricating oil pressure in a turbine is calculated during design based on factors such as the rotor’s weight, speed, the design of the bearing shells, and the viscosity of the lubricating oil, in order to ensure that a proper oil film is formed between the shaft journals and the bearing shells, as well as to provide sufficient oil for cooling purposes. Therefore, the lubricating oil pressure in turbines is generally set at 0.12–0.15 MPa. Excessively high lubricating oil pressure can cause oil leakage from the oil seal and bearing vibration. Too low oil pressure results in a poor oil film, and may even cause the loss of oil supply and damage to the bearing shells.

The control system of a steam turbine typically uses oil to transmit signals and as power to drive the actuators, which in turn open and close the control valves and the main steam valve. To ensure rapid and sensitive adjustment, a certain speed control oil pressure must be maintained. The commonly used control oil pressures for turbines include 0.4–0.5 MPa, 1.2–1.4 MPa, 1.8–2.0 MPa, and others. Generally speaking, a high oil pressure enables the control system to operate with high sensitivity, and reduces the size of the hydraulic actuators and throttle mechanisms. The speed control oil pressure has reached as high as 4.0 MPa in some cases. However, high oil pressure can easily cause oil leakage and fires. The lubricating oil pressure in a turbine is calculated during design based on factors such as the rotor’s weight, speed, the design of the bearing shells, and the viscosity of the lubricating oil, in order to ensure that a proper oil film is formed between the shaft journals and the bearing shells, as well as to provide sufficient oil for cooling purposes. Therefore, the lubricating oil pressure in turbines is generally set at 0.12–0.15 MPa. Excessively high lubricating oil pressure can cause oil leakage from the oil seal and bearing vibration. Low oil pressure results in a poor formation of the oil film, and may even lead to shaft bearing damage due to a lack of oil supply

The speed control oil pressure is the power fluid used to open and close valves, while the lubrication oil pressure is used to lubricate and cool the equipment. It is determined by the level of pressure.

This is likely determined by the time constant of the action and the equipment investment cost.

The control system of a steam turbine typically uses oil to transmit signals and as power to drive the actuators, which in turn open and close the control valves and the main steam valve. To ensure rapid and sensitive adjustment, a certain speed control oil pressure must be maintained. The commonly used control oil pressures for turbines include 0.4–0.5 MPa, 1.2–1.4 MPa, 1.8–2.0 MPa, and others. Generally speaking, a high oil pressure enables the control system to operate with high sensitivity, and reduces the size of the hydraulic actuators and throttle mechanisms. The speed control oil pressure has reached as high as 4.0 MPa in some cases. However, high oil pressure can easily cause oil leakage and fires. The lubricating oil pressure in a turbine is calculated during design based on factors such as the rotor’s weight, speed, the design of the bearing shells, and the viscosity of the lubricating oil, in order to ensure that a proper oil film is formed between the shaft journals and the bearing shells, as well as to provide sufficient oil for cooling purposes. Therefore, the lubricating oil pressure in turbines is generally set at 0.12–0.15 MPa. Excessively high lubricating oil pressure can cause oil leakage from the oil seal and bearing vibration. Too low oil pressure results in a poor oil film, and may even cause the loss of oil supply and damage to the bearing shells.

It has two systems: regulation oil and lubricating oil