Fault Analysis and Treatment on Cooling Water System of Large Hydropower Station Unit
Due to the large amount of debris in the cooling water system pipeline and the installation conditions that do not meet the requirements,the thermal conductivity flow switch often mistakenly sends out the interrupt signal.Through adding Doroth hydraulic automatic control valve with pressure regulation function,there is a phenomenon of unauthorized closing,which leads to the risk of interruption in the operation of the cooling water of the unit.In view of the above situation,measures such as canceling the flow switch,installing the flowmeter,modifying the judgment logic,increasing the main and standby water automatic switching function have been taken to solve the problem of false alarm of cooling water interrupt signal and operation interruption,which provides valuable reference experience for the transformation of technical water supply system of hydropower stations.
cooling water systemthermal conductivity flow switchflowmeterautomatic switching of main and standby waterlarge hydropower station
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