Seal ring holder for membrane element and membrane element
US7749382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Sep 29, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/131
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A seal ring holder for membrane elements which is capable of attaining an increase in the area of membranes packed per element; and a membrane element using the seal ring holder, are provided. The seal ring holder for membrane elements which is disposed at an end part of a spiral wound membrane element to hold a ring seal ring on the outer periphery thereof while allowing a raw liquid to flow into a membrane end part of the membrane element, includes: a first ring part which has a side wall facing an upstream-side membrane end part of the membrane element and is inserted into an end part of a sheathing member of the membrane element; a projecting ring part which has been formed upstream from the first ring part and has side walls respectively on both sides, an edge face of the sheathing member and the downstream-side edge face of the seal ring being fixable respectively to the side walls; a second ring part which is formed upstream from the projecting ring part and to the outer periphery of which the seal ring is to be fitted; and a third ring part which is formed upstream from the second ring part and to which the upstream-side end face of the seal ring is fixable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.