What is the role of horizontal buried oil tank accessories

Horizontal buried oil tanks generally use double-layer oil tanks, which greatly reduce the occurrence of oil leakage and increase the environmental performance of the oil tank. Then the horizontal buried oil tank What is the role of the attachment? Here is a brief introduction:

(1) Manhole. Horizontal buried oil tanks or repairing oil tanks are used for the entry and exit of personnel and ventilation and exhaust. The diameter is about 700mm. The manhole cover is usually equipped with oil measuring holes, vent pipes, oil inlet and outlet pipelines and other various oil tank accessories. There is no manhole operation and protection above the manhole.

(2) Oil measuring hole. Used for oil tank measurement, sampling and observation. It is equipped with a special oil measuring tank made of aluminum alloy to prevent sparks when lowering the ruler. A sealing groove is set under the hole cover and an oil-resistant rubber gasket is embedded to seal and prevent cremation due to impact when the hole cover is closed. Some oil measuring holes are in the form of steel pipe sleeve copper caps (caps), which are mainly sealed by the weight of the copper cap and gaskets.

(3) Ventilation hole (breathing tube). It is used for the oil vapour in the unloading tank to be discharged out of the tank and to inhale air when filling the oil. (4) Air barrier and breathable cap. It is the supporting equipment for the horizontal buried oil tank of the gas station, installed on the top of the oil tank vent. When the oil in the tank is heated to expand or unload, it will ventilate outward through the fire-retardant corrugated board. When the oil tank is transporting oil products, the corrugated plate sucks in air and prevents the fire source from passing through to ensure the safety of the oil tank.

(5) One-way valve or check valve, installed in the outlet of the oil outlet pipe in the oil tank, should not be less than 0.15mm from the bottom of the tank, to prevent oil from flowing back into the tank from the pipeline and the tanker when the tanker does not suck oil .

(6) Quick connector. The automobile must adopt a closed oil unloading method, and the oil unloading pipe and the oil inlet of the oil must be connected with a quick sealing joint. Quick joints are hose joints at both ends of yin and yang. The oil is unloaded from the oil tanker into the oil tank through the quick connector of the oil unloading pipe. This joint is easy to operate, quick to assemble and disassemble, reliable in work, can reduce oil and gas, reduce air pollution, and is beneficial to environmental protection. CRJ type plug-in hose joint assembly is commonly used in gas stations.

(7) Emergency shut-off valve. It is a valve used with a submersible pump and is installed on the bottom pipeline of the gas station.