An electric desalination tank for residual oil dewaxing

Abstract

An electric desalting tank for residual oil dewaxing, the invention belongs to the field of crude oil processing equipment, comprising a main body of an electric desalting tank, a square pipe is arranged at the inner bottom of the main body of the electric desalting tank, one end of the square pipe is connected to one end of a high-pressure pipe through a sealed bearing and connected to the The high-pressure pipe runs through one side of the inner wall of the main body of the electric desalination tank and is connected with it through a sealed bearing. The other end of the square pipe is fixedly connected to one end of the first rotating shaft. The mud discharge pipe of the valve and the mud discharge pipe communicate with the main body of the electric desalination tank. This device controls the water spraying position on the square pipe by controlling the position of the square sleeve, which is different from the backwash system on the existing electric desalination tank device. Compared with the method of continuously spraying water from several nozzles, it can effectively reduce water consumption, facilitate the extraction of residual crude oil from sewage, and make it easier for the scraper to scrape out the sludge, thereby improving the cleaning effect.

Description

technical field [0001] The invention belongs to the field of crude oil processing equipment, in particular to an electric desalting tank for residual oil dewaxing. Background technique [0002] After the electric desalting tank desalts and dehydrates the crude oil, the sludge will deposit in the lower part of the water layer at the bottom of the electric desalting tank, and it will accumulate more and more. The insoluble sludge will deposit at the bottom of the electric desalting tank, gradually reducing the volume of the electric desalting tank It affects the normal operation of the electric desalination tank, and also affects the desalination effect. The continuous backwashing operation is not effective in eliminating sludge deposits. Refining, the existing electric desalination tank device cleans its interior by spraying high-pressure water through perforated pipe holes or nozzles. However, this cleaning method consumes a lot of water and increases the follow-up sewage tr...

AI Technical Summary

Problems solved by technology

[0002] After the electric desalting tank desalts and dehydrates the crude oil, the sludge will deposit in the lower part of the water layer at the bottom of the electric desalting tank, and it will accumulate more and more. The insoluble sludge will deposit at the bottom of the electric desalting tank, gradually reducing the volume of the electric desalting tank It affects the normal operation of the electric desalination tank, and also affects the desalination effect. The continuous backwashing operation is not effective in eliminating sludge deposits. Refining, the existing electric desalination tank device cleans its interior by spraying high-pressure water through perforated pipe holes or nozzles. However, this cleaning method consumes a lot of water and increases the follow-up sewage treatment project, which is not convenient for the extraction of crude oil in sewage. In addition, the power of the high-pressure pump required is large, and the power consumption is large. The backwash system on the existing electric desalination tank device increases the flushing range by adding nozzles, but this method will cause the impact force of the water flow to disperse, resulting in poor cleaning effect. Difference

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