How is the reaction pressure controlled by the compressor speed?

Strictly speaking, the speed of the compressor (i.e., the rotation speed of the turbine) is related to the steam pressure, while backflow is related to the amount of excess air； Under the same outlet pressure, an increase in inlet steam pressure results in a decrease in the compressor speed, while the opposite occurs when inlet steam pressure decreases ； Backflow is a method for adjusting the flow rate of the rich gas; when this flow rate is insufficient, in order to maintain the pressure at the compressor outlet, backflow can be increased simultaneously with adjusting the rotation speed, thereby ensuring an adequate flow rate of rich gas at the inlet.

1. The rotation of the air compressor is driven by the conversion of steam energy. The adjustment of the compressor speed is controlled by the opening degree of the main steam valve; a larger opening degree of the main steam valve results in more steam and thus a higher speed. The steam pressure is high and the energy is great, so less steam is required to achieve the same rotational speed. There are also design specifications for steam pressure; it’s not the case that the higher, the better. 2. The function of the compressor is to compress the rich gas promptly and send it to the absorption and stabilization system; therefore, when the amount of rich gas is large, the rotation speed must be increased, otherwise overpressure will occur. 3. Backflow is the flow of material from the compressor outlet back to the compressor inlet, aimed at preventing compressor surge. The conditions for compressor surge are too low an inlet flow rate and too high an outlet pressure. To prevent surge, the material at the outlet is returned to the inlet in order to increase the inlet flow rate. During normal operation, backflow should be as low as possible to save energy.

The higher the speed of the compressor, the lower the reaction pressure. . . Backlash momentum can also affect the reaction pressure; the greater the backlash momentum, the higher the reaction pressure. But the adjustment effect is not very noticeable.

It cannot be said that \"under the same export pressure, the inlet steam pressure increases and the speed of the compressor decreases.\" The speed is controlled by a governor, which automatically reduces the regulating valve opening to maintain a constant speed； At high steam pressure, the amount of steam required at the same rotation speed is relatively low; at low steam pressure, the amount of steam required at the same rotation speed is relatively high. The higher the rotation speed, the greater the amount of rich gas, which leads to a decrease in reaction pressure. Additionally, the higher the rotation speed, the greater the amount of gas consumed. Backflow occurs at the compressor outlet back to the inlet, thereby compensating for the insufficient amount of rich gas and preventing surging