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External filtering system for hollow fiber porous membrane bundle and technology thereof

A filtration system and porous membrane technology, which is applied in the field of filtration systems of external hollow fiber membrane porous membrane bundles, can solve the problems that the membrane filaments are not easy to swing or vibrate, unfavorable vibration cleaning effect, uneven force, etc., to achieve good water quality , small footprint and long operating cycle

Active Publication Date: 2012-09-12
ZHEJIANG THINK ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an external hollow fiber porous membrane bundle filtration system and its process which are not easy to break, have a long service life of the membrane module, stable water quality, resistance to cleaning, good anti-fouling and blocking effects, and simple structure; The two ends of the membrane filaments in the prior art are fixed, the membrane filaments are not easy to swing or vibrate, which is not conducive to exerting the vibration cleaning effect, the force is not uniform, and the technical problems of easy fracture

Method used

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  • External filtering system for hollow fiber porous membrane bundle and technology thereof
  • External filtering system for hollow fiber porous membrane bundle and technology thereof
  • External filtering system for hollow fiber porous membrane bundle and technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 As shown, a filter system of an external hollow fiber porous membrane bundle includes an upper head 1, a lower head 18 and a cylinder body 10, the upper and lower heads are respectively located at the two ends of the cylinder body 10, and the upper and lower sides of the cylinder body There is a cylinder end ring 15 at both ends, and there is an O-ring 16 between the upper head 1, the lower head and the cylinder end ring, which is fixed by the hoop 6 after being sealed by the O-ring. The upper and lower heads and the cylinder body 10 are connected to form a shell with a cavity. There is a central pipe 12 fixed in the center of the shell, the upper end of the central pipe 12 is connected with a water inlet, the water inlet is connected with external equipment through the water inlet joint 2, the water inlet is located at the upper end of the upper head 1, and the water inlet is connected through the water distribution connecting pipe 8 is connected on t...

Embodiment 2

[0041] Such as Figure 4 As shown, the difference from Embodiment 1 is that the air distribution tray 14 includes a central part 25 that overlaps with the center of the central tube, and a plurality of symmetrically arranged ribs 26 are integrally formed on the central part 25. Cloth air hole 24.

Embodiment 3

[0043] Such as Figure 5 and 6 As shown, the difference from Embodiment 1 is that the air inlet is connected with an air inlet pipe 27, and the air inlet pipe 27 pulls out two air inlet branches 28 to be connected to the central fixing portion 21 of each layer of support of the frame body 11, The central fixed part 21 is a hollow cavity, and the part of the air intake branch 28 passing through the central fixed part is provided with an opening, and the gas is introduced into the central fixed part 21. The outer surface of the ribs is provided with air holes 29, and the center of the gas is fixed in the supporting ribs, and then sprayed outwards from the air holes 29 on the supporting ribs, because the supporting ribs divide the membrane filaments into membrane filament bundles, and are close to the membrane filaments. The cleaning effect of membrane filament is better.

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Abstract

The invention relates to a water processing system and a method of water processing. An external filtering system for a hollow fiber porous membrane bundle comprises a casing, an air inlet, a water inlet and a drain outlet are arranged on the casing, and a frame body and a hollow U-shaped membrane wire are arranged in the casing. The water processing technology corresponding to the water processing system comprises a water producing process and a gas-liquid two-phase washing process. The membrane wire of the external filtering system is not apt to break, and a membrane assembly is long in service life, wash-resisting and good in antifouling effect. The external filtering system and the technology solve the problems that in the prior art, two ends of the membrane wire are fixed, the membrane wire is not apt to shade or vibrate so that vibration washing effect cannot be achieved, stress is not very even, breaking can be generated easily, pollutants are apt to deposit on the root portion of the membrane wire, accordingly service life of the membrane assembly is effected, water quality is not stable, the membrane wire of the water processing system is apt to be blocked, and water processing effect can be influenced.

Description

technical field [0001] The invention relates to a water treatment system and a water treatment method, in particular to a filtration system and process of an external hollow fiber membrane porous membrane bundle. Background technique [0002] The traditional domestic and industrial wastewater reuse treatment process is relatively complicated, and the operation and management are also very troublesome, and the quality of the treated water is not very stable. The membrane treatment technology developed in recent years overcomes the shortcomings and deficiencies of the traditional process, and improves the physical and chemical indicators of the treated water. In the traditional membrane module design, hollow fiber membranes are filled in a cylindrical shell to form a membrane module. Hollow fiber porous membranes are widely used in various solutions due to their reasonable structure and mature technology. Filtration, purification treatment, especially water filtration and pur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/02
Inventor 罗国林
Owner ZHEJIANG THINK ENERGY TECH
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