Buffer device for fully-closed dehydration pipeline of oil tank

Abstract

The invention belongs to the technical field of petrochemical engineering, and particularly discloses a buffer device for a full-closed dehydration pipeline of an oil tank. The buffer device comprises a buffer tank communicating in the dehydration pipeline, a sealing partition plate capable of suspending on the liquid level and dividing the interior of the buffer tank into an upper independent area and a lower independent area is arranged inside the buffer tank, the interior of the buffer tank is divided into an upper buffer area and a lower liquid storage area by the sealing partition plate, a water inlet and a water outlet communicating with the dehydration pipeline are arranged on the side wall of the buffer tank, an oil sludge outlet is formed in the bottom of the buffer tank, and an oil sludge scraper device is further arranged at the bottom of the buffer tank. The buffer device can further intercept and recycle residual oil sludge, oil waste is reduced, meanwhile, the lower liquid storage area of the buffer tank can store sewage to be dehydrated in the pipeline, a sewage pump can conduct dehydration work continuously and effectively, the sealing partition plate is matched with the combined design of a switch valve assembly capable of automatically closing a breathing opening, sewage is prevented from being discharged from the breathing opening due to leakage of the sealing partition plate, and meanwhile, the strength requirement of the sealing partition plate is further reduced through the combined design.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, in particular to a buffer device for a fully enclosed dehydration pipeline of an oil tank. Background technique [0002] In the prior art, the oil in the oil tank in the field of petrochemical technology will contain certain impurities such as water or sediment. After long-term storage, the water or sediment will settle to the bottom of the tank. In order to improve the purity of the oil, it is usually necessary to The matching dehydration device dehydrates impurities such as water or sediment in the oil tank. [0003] In addition, because the oil-water mixture in the oil tank contains a certain amount of toxic and harmful gases, if the dehydration treatment is not carried out in a closed space, the toxic and harmful gases will cause great pollution and harm to the air and soil. Therefore, it is necessary to The entire dehydration process is carried out in a fully enclosed space, ...

AI Technical Summary

Problems solved by technology

[0004] Therefore, in order to solve the problem that the limited liquid flow in the pipeline cannot meet the requirements of continuous and effective dehydration and the oil passage is blocked by sludge, it is urgent to develop a buffer device for the fully enclosed dehydration pipeline of the oil tank.

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