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Spiral wound film element

A roll-type membrane and element technology, applied in membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., can solve the problems of low membrane utilization rate, low effective membrane area, and low water production

Inactive Publication Date: 2010-01-13
A O SMITH (CHINA) ENVIRONMENTAL PRODUCTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such spiral-wound membrane elements need to use a lot of sealant, and the membrane utilization rate and effective membrane area are relatively low, and the water production is not high.

Method used

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Examples

Experimental program
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Embodiment Construction

[0020] Such as figure 1 and combine figure 2 , image 3 As shown, the spiral-wound membrane element of the present invention includes a central water collection pipe 1 , a sealant 2 , a separation membrane 3 , a water production guide cloth 4 , and an inlet water guide cloth 5 .

[0021] The central water collecting pipe 1 is a hollow pipe with seepage holes 11 communicated with the inside on its surface. The separation membrane 3 is an uncut membrane, folded repeatedly to form a plurality of alternately arranged water inlet interlayers 6 formed by the front 31 of the separation membrane and water production interlayers 7 formed by the back 32 of the separation membrane. The water inlet guide cloth 5 is inserted in the water inlet interlayer 6 , and the water production guide cloth 4 is inserted in the water production interlayer 7 . The front and rear sides 72 of the water-producing interlayer 7 adjacent to the folded edge 71 are sealed by the sealant 2 so that the water-...

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PUM

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Abstract

The invention relates to a spiral wound film element, which comprises a central water collecting pipe, sealant, a separation diaphragm, water producing guide cloth and water inlet guide cloth. The spiral wound film element uses multi-folding of the integral separation diaphragm to form a plurality of film blades so as to enlarge the effective film area of the film element, reduce the use of the sealant and achieve the aims of increasing the water yield and reducing the cost.

Description

technical field [0001] The invention relates to a water purifying device, in particular to a filter of the water purifying device, in particular to a spiral-wound membrane element of a filter. Background technique [0002] At present, commonly used spiral-wound membrane elements are common separation membranes used in the field of fluid separation, including reverse osmosis membranes, nanofiltration membranes, ultrafiltration membranes, microfiltration membranes, electrodialysis membranes, pervaporation membranes, etc., they Use the separation characteristics of the separation membrane itself to remove one or more substances in the fluid to achieve the purpose of purification, concentration and purification. [0003] The usual separation membrane element is mainly composed of separation diaphragm, water flow diversion cloth, water inlet diversion cloth, central water collection pipe and sealing glue; during production, the required raw materials are cut according to the size...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/10
Inventor 侯贻直李顺勇陈芝莲
Owner A O SMITH (CHINA) ENVIRONMENTAL PRODUCTS CO LTD
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