Recyclable oily sewage treatment device

A treatment device and technology for oily sewage, applied in flotation water/sewage treatment, centrifugal separation water/sewage treatment, grease/oily substance/floating matter removal device, etc., can solve the problems of complex structure and high cost, and achieve work efficiency Improve and reduce oil content, and the effect of compact equipment structure

Inactive Publication Date: 2018-03-20
刘曼华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One purpose of the present invention is to solve the problem that the internal structure of the existing recyclable oily sewage treatment device is relatively complicated, and the cost of processing and manufacturing is relatively high, and to provide a recyclable oily sewage treatment device

Method used

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  • Recyclable oily sewage treatment device

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Embodiment Construction

[0031] figure 1 It is a schematic device diagram of a recyclable oily sewage treatment device according to an embodiment of the present invention. Such as figure 1 As shown, the circulating oily sewage treatment device may generally include a shell 1, an inlet and outlet pipeline, a separation device 3 and a circulation loop. The shell 1 is composed of a cylindrical outer cylinder 12 , an upper sealing head 11 and a lower sealing head 13 . The inlet and outlet pipelines are composed of oily sewage inlet pipe 21, primary overflow pipe 23, secondary overflow pipe 24 and outlet pipe 25; wherein, the oily sewage inlet pipe 21 is horizontally connected to the upper half of cylindrical outer cylinder 12, and the primary overflow pipe The flow pipe 23 is located at the center of the upper head 11, the secondary overflow pipe 24 is coaxial with the primary overflow pipe 23 and the pipe diameter is smaller than the primary overflow pipe 23, and the outlet pipe 25 is located at the ce...

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Abstract

The invention provides a recyclable oily sewage treatment device and relates to the field of sewage treatment. The recyclable oily sewage treatment device comprises a housing, an inlet and outlet pipe, a separating device and a circulation circuit. The housing comprises a cylindrical outer cylinder, an upper head and a lower head. The inlet and outlet pipe comprises an oil-containing sewage inletpipe, a first-stage overflow pipes, a second-stage overflow pipe and an outlet pipe. The separating device includes a cylindrical inner cylinder and a spirally-upward-inclined swirling flow guide plate disposed between the cylindrical outer cylinder and the cylinder inner cylinder, wherein the cylindrical inner cylinder is coaxial with the cylindrical outer cylinder, and the swirling flow guide plate is fixed on the upper part of the inner wall of the cylindrical outer cylinder. The circulation circuit is provided with a circulation pump for circulating part of treated sewage into the cylindrical outer cylinder. Organic combination of two oil-water separation unit technologies of swirling flow and air-floatation can be successfully realized by means of circulating injecting of part of theoily sewage into the treatment device, tiny oil droplets can be separated, the working efficiency is greatly improved, and the structure of the device is compact and simple.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a recyclable oily sewage treatment device. Background technique [0002] With the continuous development of oilfields, the water content of oilfield production fluids gradually increases, and the cost of sewage treatment accounts for an increasing proportion of production costs. Due to the needs of environmental protection and the limitation of oilfield permeability, sewage discharge standards and reinjection The requirements are becoming more and more stringent, which put forward higher requirements for the treatment capacity and treatment effect of sewage treatment plants. In addition, for offshore oil fields and some onshore oil fields, due to space limitations, the sewage treatment system needs to be simple and compact. [0003] In order to overcome the shortcomings of traditional air flotation and cyclone and further enhance the oil-water separation effect of air flotation, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/40C02F1/38C02F1/24
Inventor 刘曼华
Owner 刘曼华
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