Here is Water Turbine Hydro Power Design China talking about Turbine Pressure Regulating Valve.
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Its reliability is self-explanatory: if the pressure regulating valve system fails and can't be normally discharged in the event the unit is directed. The rapid closure of the foliage mechanism under ordinary circumstances will create the pressure from the water conduit to grow quickly, which might cause devastating consequences.
Its controller manner: with one hydraulic power element to concurrently drive the pressure controlling valve and the vane relay, and exerts string control. After the pressure valve has been refused to maneuver, the guide vane relay can't be normally closed and may only be shut normally from the jump. The hydraulic power element together with the aforementioned functions is known as"special primary pressure regulating valve" from the business.
This controller model was widely recognized and followed by the sector for over 40 decades.
In the last several decades, with the rising usage of pressure regulating valves and the broad use of cheap high-pressure governors, the way to restrain the governor with pressure regulating valve controller with higher oil pressure governor it's appreciated by the governor maker, and the large oil pressure of this exceptional principal pressure regulating valve is getting a significant problem in the business. It's well-known that the spool kind primary pressure regulating valve is prone to this issue of large leakage as a result of a problem in processing the gap in 16.0 MPa, which limits the economic performance of this exceptional principal assembly.
The principle of the clinic has climbed to the degree of technological invention, which is very dangerous. Since we are aware that the 2 sets of management components cannot recognize the collapse of a single set of elements without outside judgment, and another pair of elements also automatically fails. This mechanism is the vital purpose of" special principal pressure regulating valve".
The pressure regulating valve would be the sole and final security protection step for the water diversion program under intense conditions. Whether this security protection fails, then it might result in serious mishaps, and its reliability should not be decreased by this security element. Complex method to attain.
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