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Method and device for cleaning immersed hollow fibrous membrane component

A technology for cleaning equipment and fiber membranes, which is applied in the field of cleaning methods and equipment devices for submerged hollow fiber membranes, can solve the problems of large consumption of chemicals, heavy workload, and long time consumption, and achieve cost reduction, space saving, and guarantee The effect of cleaning effect

Active Publication Date: 2014-03-26
四川深蓝环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Off-line cleaning requires a lot of chemicals and hours to tens of hours of operation time, not only the workload is heavy, the consumption of chemicals is large, but also because the cleaning operation takes a lot of time, it has a great impact on the normal production of the water treatment plant

Method used

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  • Method and device for cleaning immersed hollow fibrous membrane component
  • Method and device for cleaning immersed hollow fibrous membrane component
  • Method and device for cleaning immersed hollow fibrous membrane component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment describes a cleaning device for submerged hollow fiber membrane modules, which is suitable for submerged hollow fiber membrane modules with a filtration area of ​​less than 200 square meters.

[0025] The structure of the cleaning equipment for the submerged hollow fiber membrane module described in this example is shown in the attached figure 1 As shown, it includes chemical solution tank (1), cleaning pump (2), cleaning valve (F1), jet tube (9), submerged hollow fiber membrane module (5), upper water collection pipe (6), lower water collection pipe (4), outlet valve (F2), outlet pump (7) and outlet pipe (8). The upper water collection pipe (6) of the submerged hollow fiber membrane module is communicated with the lower water collection pipe (4) by the jet pipe (9), so that the upper water collection pipe (6) and the lower water collection pipe (4) of the hollow fiber membrane module (5) ), the jet tube (9) and the cavity of the hollow fiber membrane o...

Embodiment 2

[0027] This embodiment describes a cleaning device for a submerged hollow fiber membrane module, which is suitable for a submerged hollow fiber membrane module with a filtration area of ​​more than 200 square meters.

[0028] The structure of the cleaning equipment for the submerged hollow fiber membrane module described in this example is shown in the attached image 3 As shown, it includes chemical solution tank (1), cleaning pump (2), cleaning valve (F1), jet tube (9), submerged hollow fiber membrane module (5), upper water collection pipe (6), lower water collection pipe (4), outlet valve (F2), outlet pump (7) and outlet pipe (8). Two jet tubes (9) connect the two ends of the upper water collection pipe (6) and the lower water collection pipe (4) of the submerged hollow fiber membrane module respectively, so that the upper water collection pipe (6) of the hollow fiber membrane module (5) , the lower water collection pipe (4), the jet pipe (9) and the inner cavity of the h...

Embodiment 3

[0031] This embodiment describes a cleaning device for a submerged hollow fiber membrane module.

[0032] The structure of the cleaning equipment for the submerged hollow fiber membrane module described in this example is shown in the attached Figure 4 As shown, it includes chemical solution tank (1), cleaning pump (2), cleaning valve (F1), jet tube (9), submerged hollow fiber membrane module (5), upper water collection pipe (6), lower water collection pipe (4), outlet valve (F2), outlet pump (7) and outlet pipe (8). The upper water collection pipe (6) of the submerged hollow fiber membrane module is communicated with the lower water collection pipe (4) by the jet pipe (9), so that the upper water collection pipe (6) and the lower water collection pipe (4) of the hollow fiber membrane module (5) ), the jet tube (9) and the cavity of the hollow fiber membrane of the hollow fiber membrane module form a circulation loop; the liquid medicine tank (1), the cleaning pump (2), and ...

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Abstract

The invention relates to method and a device for cleaning an immersed hollow fibrous membrane component. The key point is that a small-flow high-lift cleaning pump is used for ensuring that mass-flow cyclic flow of cleaning fluid is formed in the inner cavity of a hollow fibrous member of the hollow fibrous membrane component, and the cleaning fluid slowly permeates outwards from the inner cavity of the hollow fibrous membrane, so that all parts of the hollow fibrous membrane are soaked and the uniformity of the cleaning operation is ensured.

Description

technical field [0001] The invention relates to water treatment equipment, in particular to a cleaning method and equipment device for a submerged hollow fiber membrane. Background technique [0002] The submerged hollow fiber membrane module is mostly a curtain membrane module, and the membrane filaments are vertically distributed. It is used for water filtration and also for solid-liquid separation in the membrane bioreactor (MBR) process. During its working process, the filter membrane is polluted by impurities, causing fouling, and the filtration performance of the membrane decreases. When the fouling of the membrane develops to a certain extent, the membrane needs to be cleaned. The current cleaning methods can be divided into two forms: online cleaning and offline chemical cleaning. On-line cleaning uses the cleaning liquid to reversely pass through the membrane pores from the inside of the membrane and penetrate to the raw water side to elute the pollutants attached ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D65/02B01D63/02
Inventor 靳志军
Owner 四川深蓝环保科技有限公司