What accessories play an important role in cryogenic storage tanks

Because the cryogenic liquid tank is a relatively complex equipment, it has many components. Many of the components have played a very important role, and I believe everyone is very clear in the process of using it. So what are the non-negligible components in the cryogenic storage tank that play an important role?
1. Manhole. Low-temperature storage tanks or oil tank repairers are used for entry and exit, ventilation and exhaust. The diameter is about 700mm. Usually, other oil tank accessories such as oil measuring holes, ventilation pipes, and oil inlet and outlet pipelines are installed on the manhole cover. There is no one above the manhole. Hole operation and protection.
2. Oil measuring hole. For measurement, sampling and observation. There is an oil measuring groove made of aluminum alloy to avoid sparks when the ruler is lowered. There is a sealing groove under the hole cover and an oil-resistant rubber gasket is embedded to seal it and prevent the hole cover from being cremated due to collision when the hole cover is closed. There are also some oil measuring holes in the form of steel pipe sleeve copper caps (covers), which are mainly sealed with the weight of the copper cover and gaskets.
3. Ventilation hole (breathing tube). It is used to inhale the air when the oil vapor in the oil unloading tank is discharged out of the tank and the oil is filled.
4. Gas choke cap. It is the supporting equipment of the oil tank of the gas station, and is installed on the top of the oil tank ventilation. When the oil tank is transporting oil to the outside, the air is sucked through the corrugated plate, and the fire source is not allowed to pass through.
5. Connector. The car adopts a closed oil discharge method, and the connection between the oil discharge pipe and the oil inlet of the oil bladder adopts a sealed joint. The oil is unloaded from the tank truck into the tank through the unloading pipe joint. This joint is easy to operate, quick to assemble and disassemble, can reduce oil and gas play, and reduce air pollution.
6. Emergency shut-off valve. It is a valve used with a submersible pump and is installed on the bottom pipe of a gas station.