Process dehumidifier regeneration control method and apparatus
US6729039B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2003 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Jul 21, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B21/083
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and an apparatus for controlling airflow in a desiccant drying system having two desiccant beds (10, 12). A first diverter valve (14) communicates with each of the desiccant beds, a regeneration air inlet (22), and a press air outlet (20). A second diverter valve (16) communicates with each of the desiccant beds, a process air inlet (18), and a regeneration air outlet (28). First and second regeneration air control valves (24, 30) are also provided which during a cooling phase of the regeneration cycle admit a cooling bleed stream of process air to the desiccant bed being regenerated and then convey the cooling air bleed stream from the desiccant bed and through a heat exchanger (42) back to the process air inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.