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Spiral wound reverse osmosis membrane element with high recovery rate

A technology of reverse osmosis membrane and high recovery rate, applied in the direction of reverse osmosis, semi-permeable membrane separation, membrane technology, etc., can solve the problems of further improvement of pure water flow rate and reduction of concentrated water discharge, so as to achieve high recovery rate and reduce discharge , Increase the effect of pressure-bearing contact points

Active Publication Date: 2017-02-22
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of the coiled reverse osmosis membrane element is that its pure water flow needs to be further improved, and the discharge of concentrated water needs to be further reduced.

Method used

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  • Spiral wound reverse osmosis membrane element with high recovery rate
  • Spiral wound reverse osmosis membrane element with high recovery rate
  • Spiral wound reverse osmosis membrane element with high recovery rate

Examples

Experimental program
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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] see Figure 1 to Figure 7 As mentioned above, a high-recovery roll-type reverse osmosis membrane element disclosed in the present invention includes a central pipe 1 , a membrane belt 2 and a water inlet grid 3 .

[0024] Such as image 3 As shown, a water cavity is formed in the central pipe 1, and a water hole 11 is arranged on the side wall of the central tube 1, usually a row of water holes 11 is arranged, and the water hole 11 communicates with the water cavity, and the water cavity is not shown in the figure.

[0025] The membrane belt 2 is wound on the central pipe 1, and the water inlet grid 3 is arranged between the membrane belt 2 and the membrane belt 2. The inside of the membrane belt 2 communicates with the water cavity through the water hole 11 of the central pipe 1. After the film tape 2 is wound on the central tube 1,...

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Abstract

The invention discloses a spiral wound reverse osmosis membrane element with a high recovery rate. The membrane element comprises a central tube, membrane bands and a water inflow grid, wherein a water cavity is formed in the central tube, and water holes are formed in the side wall of the central tube and communicate with the water cavity; the membrane bands wind around the central tube, the water inflow grid is arranged between the membrane bands, and the interior of the membrane bands communicates with the water cavity through the water holes in the central tube; upper ends of the membrane bands and the water inflow grid are a raw water inflow end, raw water is filtered by the membrane bands and enters the water cavity of the central tube, lower ends of the membrane bands and the water inflow grid are a concentrated water discharge end, adhesives are applied to the concentrated water discharge end of the water inflow grid at intervals, and adhesive tapes arranged at intervals are formed. The membrane element can increase the flow of pure water, reduce discharge of the concentrated water, increase the throughput and save cost.

Description

technical field [0001] The invention relates to the technical field of water filtration, in particular to a coiled reverse osmosis membrane element with high recovery rate. Background technique [0002] In the prior art, in the field of water filtration technology, the coiled reverse osmosis membrane element usually includes a central tube, a membrane belt and a water inlet grid; a water cavity is formed in the central tube, and a plurality of water holes are arranged on the side wall of the central tube , the water hole communicates with the water cavity; the membrane belt is wound on the central tube, and the water inlet grid is set between the membrane belts, that is, the adjacent membrane belts are separated by the water inlet grid to form an inlet Water channel; the membrane belt is composed of the upper reverse osmosis membrane, the lower reverse osmosis membrane and the diversion cloth placed between the upper reverse osmosis membrane and the lower reverse osmosis mem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/10B01D61/08
CPCB01D61/08B01D63/10Y02A20/131
Inventor 金碧倪旭武李明仁
Owner XIAMEN RUNNER IND CORP
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