Oil-water separator

Abstract

The invention discloses an oil-water separator. The oil-water separator body is characterized in that the front and the rear of a cylindrical shell (1) are connected respectively with a front shell cover (2) and a rear shell cover (5); a mixed liquid inlet (3) is arranged at the front shell cover (2); a light liquid outlet (7) and a heavy liquid outlet (6) are arranged respectively at the rear shell cover (5); an air outlet (9) is arranged at an upper side of the cylindrical shell (1); an emptying opening (4) is arranged at the lower side of the cylindrical shell (1); a heavy liquid discharging groove and a light liquid discharging groove are arranged between the rear shell cover (5) and the rear of the cylindrical shell (1); and mixed liquid is fed into the cylindrical shell (1) from themixed liquid inlet (3), flows along an axial direction of the cylindrical shell (1), and is separated gradually in the axial direction of the cylindrical shell (1) during the flow process. The oil-water separator is suitable for separation of mixed liquid with variable components and density and has the advantages of wide adjusting range of mixed components and production load, low backmixing degree, good separating effects, and easy control and operation.

Description

technical field [0001] The invention belongs to the field of separation equipment manufacturing, in particular to an oil-water (liquid-liquid) separator. Background technique [0002] Oil-water (liquid-liquid) separator is an important basic separation equipment, widely used in petroleum, chemical and other processes. In many modern oil extraction processes, it is necessary to inject water into the ground to bring the oil out of the ground, and the extracted oil-water mixture needs to be separated for subsequent oil processing; in the chemical process, it is often necessary to use an organic solvent to extract one or more of the mixture For several products, after the extraction is completed, it is also necessary to separate the extract from the mother liquor. Therefore, the research on efficient liquid-liquid separator is of great significance. [0003] In terms of form, there are centrifugal separation and pressure separation oil-water (liquid-liquid) separators. Its pr...

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Problems solved by technology

[0004] The traditional oil-water (liquid-liquid) separator is vertical, and it can also be designed as a horizontal type. The disadvantages of this structure of oil-water separator are: 1. It is best to set the mixture inlet on the oil-water separation interface, otherwise it will affect Separation effect, no matter whether the mixture inlet is higher or lower than the oil-water interface, the effective separation height will be reduced, and improper design will also affect the separation requirements due to insufficient separation height; 2. The flow rate of the heavy liquid outlet needs to be strictly controlled

If the heavy liquid outlet flow control is not good, if the flow rate is too large, the light liquid will not reach the height of the light liquid outlet, and the separation requirements will not be met; 3. The light liquid outlet flow rate should also be strictly designed, if the light liquid outlet flow rate is too small, It is easy to cause the separator to be filled with the mixture, and the separation requirements cannot be met.

4. When the production load changes in actual production, it is necessary to adjust the flow of light and heavy liquid outlets, which is difficult to adjust

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