Spiral type separation membrane element
US8361318B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Sep 1, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D63/101
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An object of the invention is to provide a spiral separation membrane element that can reduce the pressure loss of a feed-side channel and be much less vulnerable to the problem of inhibition or blockage of the flow in the feed-side channel. The spiral separation membrane element includes one or more separation membranes, one or more feed-side channel components, one or more permeation-side channel components, and a perforated hollow core tube around which the separation membranes, the feed-side channel components and the permeation-side channel components are wrapped, wherein the feed-side channel component is a net formed by fusion bonding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.