Traditional Culture Encyclopedia - The 24 Solar Terms - Ask a question about steam turbine, and ask the expert for advice. Thank you! ! !

Ask a question about steam turbine, and ask the expert for advice. Thank you! ! !

Glad to answer for you! First, adjust the oil pressure to the primary oil pressure, that is, the signal oil pressure. It has a quadratic relationship with the rotational speed. If it is an electric regulating system, the oil pressure can be a constant value, because the primary signal in the electric regulating system can directly collect the speed signal. Pulse oil pressure is secondary oil pressure, which changes with the change of primary oil pressure or speed signal. There are two changing processes: 1, hydraulic adjustment, which is changed by the balance force between synchronizer and spring, and the pulse oil pressure is changed by the size of oil drain window. The normal working pressure here should be 0.45. The initial pressure should be 0. 15. 2. Electric adjustment: change the oil discharge amount through the servo motor, and convert the primary oil pressure into pulse oil pressure. So the result is the same. The function of pulse oil pressure is to directly drive the position of the wrong throttle slide valve, and adjust the opening of the upper and lower oil inlets of the oil motor by changing the position of the wrong throttle slide valve. So as to directly control that on or off of the oil motor.

So your supplementary question is this: pulse oil pressure directly adjusts the opening of the regulating valve. But the balance point of its value (that is, the stable value of the wrong throttle slide valve in the middle state and the static regulating valve) can be adjusted by the wrong throttle spring. Each spring pressure corresponds to a balance point pulse oil pressure. For example, 0.45 tart should have an allowable fluctuation range. Generally plus or minus 10%.

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