Automatic flushing system for membrane separation machines such as reverse osmosis machines
US3992301A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Mar 5, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/185
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An automatic flushing and cleaning system for membrane separation machines such as reverse osmosis machines having plural modules or membranes. Cleaning may be by way of reducing the pressure to allow the membrane to relax, by the injection of air or inert gas to provide turbulence, and/or by injection of flushing liquid which may include chemical cleaning additives. Pumps, automatic valving, and pressure controls are provided, along with a complete timer operated electrical sequencing system whereby desired purging, flushing and cleaning cycles are automatically undertaken at periodic intervals or in response to one or more preferred conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.