Retrievable diffuser module with internal ballast/buoyancy chamber
US7934704B2 · kind B2 · utility
5Cited by
22References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 16, 2007 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Mar 1, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F23/231265
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A diffuser module and system for diffusing gas into liquid such as in aeration/mixing of wastewater. Each module has a header pipe and diffusers which receive gas from the header pipe. Each pipe is equipped with a smaller internal pipe arranged concentrically to provide an annular space which receives the gas and supplies it to the diffusers. The volume within the internal pipe can serve as a ballast chamber or a buoyancy chamber or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.