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Spiral wound membrane element product water tube with external flow grooves

A product, water pipe technology, applied in the field of spiral wound membrane element product water pipe

Active Publication Date: 2013-07-10
BL TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The maximum size of the hole 22 is limited due to the tendency of the membrane leaf 12 to be pulled into the hole 22 and be damaged

Method used

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  • Spiral wound membrane element product water tube with external flow grooves
  • Spiral wound membrane element product water tube with external flow grooves
  • Spiral wound membrane element product water tube with external flow grooves

Examples

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Embodiment Construction

[0021] The invention will now be described in the following detailed description, with reference to the accompanying drawings, wherein the preferred embodiment is described in detail to enable the practice of the invention. While the invention has been described with reference to these specific preferred embodiments, it is to be understood that the invention is not limited to these preferred embodiments. On the contrary, the invention encompasses numerous alternatives, modifications and equivalents, as will become apparent from consideration of the following detailed description.

[0022] Approximate language, as used herein throughout the specification and claims, may be applied to modify any quantitative representation that may permissibly vary without resulting in a change in the basic function to which it is related. Accordingly, a value modified by a term or terms, such as "about", is not to be limited to the precise value specified. In at least some instances, the appro...

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Abstract

The disclosed product water tube (70) is for use with a spiral wound filter element having a filter membrane. The product water tube has a tube wall with a plurality of apertures (48) formed therein to allow permeate from the filter membrane to pass through the tube wall and into a center portion of the tube. The tube wall has an outer surface having a pattern of ridges (72) and channels (74) that conduct the permeate across the outer surface of the tube to the apertures.

Description

technical field [0001] The present invention relates generally to membrane elements for use in reverse osmosis or ultrafiltration separation devices, and more particularly, to spiral wound membrane element product water pipes having outer channels directing permeate flow to orifices in the pipes. Background technique [0002] The use of semi-permeable membranes to achieve liquid separation is well accepted, and membranes for both ultrafiltration and reverse osmosis are currently used in a wide range of applications, including water purification, concentration of dilute mixtures or solutions, waste treatment and / or recycling of renewable content. A variety of semipermeable membranes have been developed, and spiral wound elements have become an accepted type of device that has been found to be valuable for efficiently providing a large amount of membrane surface area within a given volume of space. [0003] Referring to Figure 9, a typical prior art spiral wound reverse osm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/10
CPCB01D2313/12B01D63/1031B01D61/00C02F1/44
Inventor P.T.格贝尔
Owner BL TECH INC
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