Flow modifier for submerged intake screen
US6051131A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1998 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Sep 30, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/925
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Improved flow modifier assembly for a water intake system having a cylindrical intake screen prevents damage to fish and other aquatic organisms by providing a controlled velocity profile which causes the average flow velocity to closely approach the peak flow velocity. By extending two or more concentric tubular flow modifiers into one end of the screen, it is possible to achieve flow uniformities of more than 90%, as compared to a maximum of about 72% for a prior art configuration utilizing a single tube flow modifier. In addition, the size, weight and cost of screen required can be greatly reduced for a given peak flow velocity as compared to prior art devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.