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Pressure regulator is a safety device of long diversion tunnel. In general, when the pressure water pipe ΣLV / H greater than 15 to 30, to set a surge shaft, due to the large amount of surge shaft of civil works, the longer the duration, so replace regulator surge shaft with the pressure regulator,it can save investment, shorten the construction period, an important measure to accelerate the progress of the project.
The role of pressure regulator is when the load rejection the unit guide is fast closed and pressure regulator is opened, the flow discharged from the pressure regulator; when the unit isfull closed, the pressure regulator is slowly closed. That is, for the pressure regulator, the flow of the unit is slowly to reduce the pressure. On the other hand, the unit is still quickly closed, thus ensuringthe rate of appreciation is not too much, so that the pressure regulator is one of the effective measures to reduce appreciation of the pressure and the speed.It plays a role of surge shaft.
Pressure regulator ishydraulic control and operation, special main distributing valve and other componentscontrol the guide servomotor and pressure regulator. Pressure regulator is a horizontal or vertical arrangement.Pressure regulator includes valve housing, valve plug, master cylinder, guide cylinder, fill valve and so on.
Fill valve is installed on the valve housing. To reduce vibration,the atmosphere can be supplied to the negative pressure area by fill valve.
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