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Rotational flow microporous filter

A microporous filter and swirling flow technology, applied in filtration separation, filtration circuits, chemical instruments and methods, etc., to achieve the effect of prolonging the cleaning cycle, solving serious membrane pollution, and having broad application prospects.

Active Publication Date: 2007-05-09
DAQING OILFIELD CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of the hydrocyclone's poor removal effect on fine oil droplets when treating oily sewage, and the problem that the microfiltration membrane is prone to clogging of filter holes and fouling of the microfiltration membrane when treating high-concentration oily sewage, the invention provides a rotary Flow microporous filter, this kind of swirling flow microporous filter will organically combine the principles of swirling flow and microfiltration, effectively solve the problems existing in the existing cyclone when dealing with high-concentration oily sewage, and avoid the use of microfiltration Severe membrane fouling caused by filter membranes used in the treatment of high-concentration oily wastewater

Method used

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing:

[0010] As shown in Figure 1, the various rotating flow microporous filters include an assembly I consisting of an overflow outlet pipe flange 1, an overflow outlet pipe 2, an overflow pipe 3, and an overflow pipe upper flange 4. Lower flange 5, raw water inlet flange 6, two parallel raw water inlet pipes 7, raw water chamber sleeve 8, upper partition 9, swirl tube sleeve 10, middle upper flange 11, middle partition connecting nut 23 Component II, component III consisting of middle lower end flange 12, filter chamber sleeve 13, filtered water outlet pipe 14, filtered water chamber connecting long nut 15, component III composed of lower partition 17, bottom outflow pipe 18 IV. In addition, it also includes a microporous tube 19 with a small cone section with micro holes, a swirl tube 20 , a middle partition 21 , an inlet backing plate 24 of the swirl chamber and an upper cov...

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Abstract

A millipore filter with cyclone is composed of 4 modules, a millipore tube with small conic tube, a cyclone tube, middle bulkhead, inlet pad of cyclone cavity, top cover plate of cyclone cavity, and the screw bolts for connecting said units together to form a raw water cavity and a filtered water cavity. It has high filter precision and no pollution to membrane.

Description

Technical field: [0001] The invention relates to a device for removing oil in sewage used in oil fields, in particular to a hydrocyclone used for liquid-liquid separation of oily sewage and other light dispersed phases. Background technique: [0002] In the field of oil production in oil fields, it is usually necessary to separate oily water from oily sewage in the produced fluid, and the conventional device is a liquid-liquid hydrocyclone. At present, the more common hydrocyclone is a double-cone structure, which includes an overflow pipe, a cyclone inlet, a cylindrical section, a large cone section, a small cone section, and a parallel tailpipe section. The inlet section adopts the asymptotic line form. This kind of hydrocyclone can usually be used to separate the oily sewage in the oilfield, but due to the disadvantage that the centrifugal separation is easy to cause the droplet to be broken, it has a poor ability to remove fine oil droplets, and it is difficult to meet t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/02B01D36/00
Inventor 刘书孟董喜贵赵雪峰
Owner DAQING OILFIELD CO LTD
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