Hydrocyclone automatic backwashing device and method for high-suspended matter oily sewage

Abstract

The invention provides a hydrocyclone automatic backwashing device and method for high-suspended matter oily sewage. The device comprises a hydrocyclone, an oily sewage inlet pipeline and an electricvalve 1, a backwashing pipeline 1 and an electric valve 8, a backwashing pipeline 2 and an electric valve 6, a backwashing pipeline 3 and an electric valve 4, a water phase outlet and an electric valve 3, an oil phase outlet and an electric valve 2, an outlet of a sewage oil pipeline 1 and an electric valve 5, an outlet of a sewage oil pipeline 2 and an electric valve 7, a PLC system, and an oilysewage analyzer, wherein the PLC system comprises a host computer, a power module, an analog quantity input module, a digital quantity output module, and a digital quantity input module, and the oilysewage inlet pipeline and the electric motor 1, the backwashing pipeline 1 and the electric valve 8, the backwashing pipeline 2 and the electric valve 6, the backwashing pipeline 3 and the electric valve 4, the water phase outlet and the electric valve 3, the oil phase outlet and the electric valve 2, the outlet of the sewage oil pipeline 1 and the electric valve 5, the outlet of the sewage oil pipeline 2 and the electric valve 7 are all communicated with the hydrocyclone. The hydrocyclone automatic backwashing device is efficient, easy and time-saving to wash.

Description

technical field [0001] The invention relates to the technical field of hydrocyclone cleaning, in particular to a hydrocyclone automatic backwashing device and method for high-suspended-solid oily sewage. Background technique [0002] The hydrocyclone separator relies on the difference in specific gravity between two immiscible liquids, and is mainly used to remove more than 80% of non-emulsified oil, solid particles, suspended matter, etc. in the production water. The key component of the hydrocyclone is the swirl tube, which is composed of a distribution port, a swirl chamber, a contraction chamber, a tail cone, a tailpipe, an underflow port, and an overflow port. The oil-water mixture enters the swirl tube from the distribution port on the swirl chamber, and forms a spiral flow under a certain pressure difference. The two-stage shrinkage of the shrinkage cavity and the tail cone makes the fluid speed up and forms a stable centrifugal force field in the swirl tube. Accord...

AI Technical Summary

Problems solved by technology

Not only can it solve the problems in the traditional design, such as the randomness of the backwash time interval, the short backwash time length, and the incompatibility to high solid particles and suspended solids, but also adds automatic backwashing for the analysis and control of oil concentration at the outlet of the produced water And alarm mode, to ensure the qualified production water

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