How To Deal With Abnormal Situation Of Pneumatic Shut-off Valve

The hand-operated oil pump only ensures that the pneumatic shut-off valve does not close naturally for 48h under pressurized conditions, and it may close naturally after 48h. Therefore, under normal production conditions, the closed state of the pneumatic shut-off valve will definitely affect the operation of the tank farm. This abnormal situation should be adjusted in time.

Check the gas phase and liquid phase outlet pipe pressure of the storage tank at any time. If it is lower than the storage tank pressure or the oil pressure system pressure of the hand oil pump is lower than 3.0MPa, the oil pump should be operated to pressurize the system to keep the pneumatic shut-off valve open. At the same time, the fusible alloy plug should also be regularly inspected or replaced to make it in a sensitive and reliable state. Once an accident occurs, it can melt and release pressure, which can immediately close the pneumatic shut-off valve.

In addition, it is necessary to clean the high-pressure oil circuit system, add or replace the mechanical or spindle oil, and keep the oil and oil circuit system clean and free from blockage.