Purge retention chamber incorporated into RTO inlet manifold
US5730945A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1996 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Mar 11, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23G7/068
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A purge retention chamber is incorporated into an inlet manifold for a two heat exchanger RTO system. A bypass valve is mounted into the purge retention chamber adjacent a downstream end, and a purge face valve is mounted in the inlet manifold between upstream and downstream connection ends of the purge retention chamber. During normal operation, the bypass valve is closed and clean air fills the purge retention chamber. Dirty air to be cleaned passes through the purge face valve and moves to a heat exchanger in an inlet mode. When a purge mode begins, the purge face valve is closed and the purge bypass valve is opened. Now, clean purge gas moves into the inlet manifold and is delivered to a heat exchanger which is beginning to switch from an inlet mode to an outlet mode. The clean purge gas purges the heat exchanger. Once the purging is complete, the heat exchangers are switched between inlet and outlet modes. Preferably, after the inlet/outlet valve switch has occurred, the purge bypass and purge face valve switch back and the system returns to normal operation delivering dirty gas to be cleaned to the heat exchanger that is now in an inlet mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.