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Roll membrane filter element and filter device

A filter device and roll-type membrane technology, applied in membrane technology, semi-permeable membrane separation, permeation/dialysis water/sewage treatment, etc., can solve the problems of low water flow rate, easy contamination of the membrane, and local performance degradation, etc., to achieve Uniform flow, avoid accumulation of dirt, and improve the effect of cleanliness

Active Publication Date: 2018-03-30
FOSHAN MIDEA CHUNGHO WATER PURIFICATION MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw water flow path of the filter element with this structure is longer and the filtration is sufficient, but in the transition area where the water flow in the raw water flow path changes from parallel to the center tube to perpendicular to the center tube, there is an area with extremely low water flow velocity, which makes the diaphragm extremely susceptible to contamination , resulting in a rapid decline in local performance during use

Method used

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  • Roll membrane filter element and filter device
  • Roll membrane filter element and filter device

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Experimental program
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Effect test

no. 1 approach

[0024] In the first embodiment, the raw water pipeline 201 is formed by folding a filter membrane 20 around the center pipe 10 and facing directly in front of the water hole 101. 10 are connected and fixed, the upper and lower sides of the filter membrane 20 adjacent to the curved portion are sealed and connected to each other, and the end of the filter membrane 20 away from the central tube 10 forms the second nozzle 2012 . It can be understood that after the filter membrane 20 is sealed and connected with the upper and lower side edges adjacent to the curved portion of the filter membrane, the upper and lower membranes can be wound around the central tube 10 along the circumferential direction of the central tube 10. 10; then the outer surface of the filter membrane 20 away from the end of the central tube 10 is sealed with the outer surface of the filter membrane 20 adjacent to this end, so that the produced water channel 202 can be formed; In the first embodiment, the seal...

no. 2 approach

[0025] In the second embodiment, the raw water pipeline 201 includes at least one set of stacked first filter membrane 21 and second filter membrane 22, the first filter membrane 21 includes a first side A, and the first side A The second side B opposite to A, the third side C, and the fourth side D opposite to the third side C; similarly, the second filter membrane 22 also has a 21 corresponds to the first side A, the second side B, the third side C and the fourth side D; the first side A of the first filter membrane 21 and the first side of the second filter membrane 22 The side A is connected with the central tube 10 to form the first nozzle 2011; the third side C of the first filter membrane 21 is sealed with the third side C of the second filter membrane 22, so The fourth side D of the first filter membrane 21 is sealed to the fourth side D of the second filter membrane 22, and the second side B of the first filter membrane 21 is connected to the second side of the second...

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Abstract

The invention discloses a roll-type membrane filter element and a filter device. The roll-type membrane filter element includes a central tube with a water hole on the side wall and a raw water pipeline composed of a filter membrane. The raw water pipeline includes a first opposite nozzle and the second nozzle, the first nozzle end of the raw water pipeline is connected with the central pipe, and the raw water pipeline is wound on the central pipe with the central pipe as the center of a circle, and forms a first end corresponding to the two nozzle ends of the central pipe and a At the second end, the first nozzle faces the water hole; the outer wall of the second nozzle is sealed with the outer wall of the adjacent raw water pipeline to form a water production flow channel between the adjacent two outer walls of the raw water pipeline; the raw water The water flow in the pipeline passes through the wall of the raw water pipeline under pressure and then enters the product water flow channel, and flows out from the first end and / or the second end along the product water flow channel. The invention improves the flow velocity of the water flow in the raw water pipeline, reduces the accumulation of dirt on the surface of the filter membrane, and improves the cleanliness of the filter membrane during use.

Description

technical field [0001] The invention relates to a roll-type membrane filter element and a filter device. Background technique [0002] The water filtration process of the traditional roll-type membrane filter element generally adopts a flow channel design in which the raw water inlet direction is parallel to the central pipe, and the concentrated water (wastewater) outflow direction is perpendicular to the central pipe to achieve the separation of concentrated water and product water. The raw water flow path of the filter element with this structure is longer and the filtration is sufficient, but in the transition area where the water flow in the raw water flow path changes from parallel to the center tube to perpendicular to the center tube, there is an area with extremely low water flow velocity, which makes the diaphragm extremely susceptible to contamination , resulting in a rapid decline in local performance during use. Contents of the invention [0003] The main pur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D63/10B01D61/08C02F1/44
Inventor 蔡雪刚
Owner FOSHAN MIDEA CHUNGHO WATER PURIFICATION MFG