Automatic air supplement system and air supplement method for oil pressure device of hydropower station
A technology of automatic air supply and oil pressure device, applied in the directions of hydroelectric power generation, safety devices, engine components, etc., can solve problems such as difficulty in proportion, and achieve the effect of avoiding internal leakage and external leakage
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[0025] An automatic gas supply system for the oil pressure device of a hydropower station, such as figure 1 As shown, it includes an automatic air supply valve group 1, a pressure transmitter 2, a differential pressure transmitter 3, and an oil pressure pump 6 respectively connected to the pressure oil tank 4; the pressure transmitter 2, the differential pressure transmitter 3. After the signal is collected and processed by the programmable logic controller (PLC), the oil pressure value and oil level value of the pressure oil tank are obtained. The programmable logic controller (PLC) controls the pressure oil pump 6 (AC soft start controller ) The exhaust solenoid valve 23 and the air supply solenoid valve 27 of the automatic start-stop and automatic air supply valve group 1 (see figure 2 ) automatically open and close to maintain the ratio of compressed air and turbine oil in the pressure oil tank to meet the requirements of the entire control system.
[0026] Such as fig...
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