Accessories for double tank

The double-layer geographic oil tanks will be equipped with a leakage inspection device, which can be dealt with in time when the oil tank leaks. The double-layer geographic oil tank has the following two valves:
 
Breathing valve: When the pressure of oil and gas in the double-layer geographic oil tank is greater than the allowable pressure of the oil tank, the oil vapor escapes through the pressure valve. At this time, the vacuum valve is closed. When the pressure of the oil and gas in the tank is less than the allowable vacuum of the oil tank, fresh air Enter the pressure vessel tank through the vacuum valve, at this time the pressure valve is closed
 
Hydraulic safety valve: when the gas space in the double-layer geographic oil tank is under positive pressure, the gas squeezes the sealing liquid into the outer ring space from the inner ring space, the pressure continues to increase, and the liquid level of the sealing liquid changes continuously. When the inner ring space is sealed The liquid level is constant with the lower edge of the partition, and the gas in the pressure vessel tank enters the atmosphere through the bottom of the partition. The exhaust hole is one of the indispensable devices on the double-layer geographic oil tank, which can improve the utilization rate of the oil tank. This is very important, so it is necessary to control the inlet and outlet of the pressure vessel in use. When the liquid intake and discharge volume is large, it is necessary to install the vent hole. When changing the liquid, it is necessary to understand whether the oil tank allows liquid to be contained. If there is a joint under the oil tank, it must hang down the barrel wall and choose a soft connection. It is the best. Otherwise, after the liquid is filled, the joint will expand and cause expansion, which will also cause damage to the joint of the double-layer geographic oil tank.