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Multi-stage hydraulic self-pulse backwashing mechanism, fine filter and backwashing method

A self-pulsing, backwashing technology, applied in gravity filters, chemical instruments and methods, loose filter material filters, etc., can solve the problem of ineffective backwashing of fine filters, and achieve enhanced collision and shearing of water flow The effect of high-efficiency backwashing

Active Publication Date: 2022-06-28
NORTHEAST GASOLINEEUM UNIV +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] In view of this, the present invention provides a hydraulic self-pulse backwashing mechanism to solve the problem that the conventional hydraulic backwashing technology cannot effectively backwash the fine filter

Method used

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  • Multi-stage hydraulic self-pulse backwashing mechanism, fine filter and backwashing method
  • Multi-stage hydraulic self-pulse backwashing mechanism, fine filter and backwashing method
  • Multi-stage hydraulic self-pulse backwashing mechanism, fine filter and backwashing method

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Embodiment Construction

[0057] The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are described in detail. However, those skilled in the art can fully understand the present invention for the parts that are not described in detail.

[0058] Furthermore, it should be understood by those of ordinary skill in the art that the accompanying drawings are provided only to illustrate the objects, features and advantages of the present invention and are not actually drawn to scale.

[0059] Meanwhile, unless the context clearly requires otherwise, throughout the specification and claims, words such as "including", "comprising" and the like should be construed in an inclusive rather than an exclusive or exhaustive sense; that is, "including but not limited to" means.

[0060] figure 1 is a schematic structural diagram of a fine filter...

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Abstract

The invention discloses a multi-stage hydraulic self-pulse backwashing mechanism, a fine filter and a backwashing method, wherein the backwashing mechanism is designed with a multi-stage dumbbell-shaped cylinder variable cross-section structure, which produces a multi-stage hydraulic self-pulse backwashing effect , strengthen the collision between the filter material particles in the filter bed and the shearing effect of the water flow, and realize the efficient backwashing of the filter bed, thus effectively solving the problem that the fine filter cannot be effectively backwashed due to the use of smaller filter materials and deeper filter beds. The problem.

Description

technical field [0001] The invention relates to an oily sewage treatment device and a treatment method, in particular to an oilfield chemical flooding sewage fine filtering device and method. Background technique [0002] Major domestic oilfields have successively entered the middle and late stages of effective development, the water content of produced fluids has been greatly increased, and the decline of oilfield production has accelerated. In order to effectively utilize the underground recoverable reserves and prolong the economic development cycle of the oilfield, the chemical flooding oil recovery technology has become more and more mature after years of scientific research and field tests. It has become the technical guarantee for the stable production of oilfields. [0003] The oil-water interfacial tension of chemical flooding produced fluid decreases and the interfacial energy increases, which enhances the degree of oil-water emulsification and stability, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D24/46
CPCB01D24/4636B01D24/4689
Inventor 王松于忠臣刘书孟李可曹晓玲张子良
Owner NORTHEAST GASOLINEEUM UNIV
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