【Q&A Question 056】June 15, 2016
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【Q&A Question 056】June 15, 2016: What is the speed control mechanism of the circulating hydrogen compressor (turbine)? The answer key will be available after responding; scoring is based on addressing the key points. By controlling the action of the hydraulic actuator through secondary oil pressure, the intake valve is opened or closed, thereby achieving speed increase or decrease.
I only know that it involves adjusting the steam valve; I don’t understand the specific logic behind it
By comparing the actual speed with the set speed, a signal is sent to the electro-hydraulic converter; the stroke of the hydraulic actuator is adjusted through the pressure converter and the throttle slide valve, which in turn adjusts the opening degree of the control valve and changes the amount of steam entering, thereby altering the speed of the turbine
The hidden content of this post: The secondary oil pressure is used to control the movement of the hydraulic actuator, thereby opening or closing the intake valve and thus achieving speed increase or decrease
The speed is adjusted by controlling the amount of steam passing through the turbine through a hydraulic valve
Adjusting the turbine speed using steam volume
The speed of the turbine is controlled by adjusting the opening degree of the turbine valves, thereby regulating the amount of steam that enters the turbine.
The 505 receives signals from the on-site probes, makes judgment decisions based on preset speed comparisons, and then converts electrical signals into hydraulic pressure to control the throttle, thereby adjusting the main steam valve