Patent · US Expired

Regeneration cycle control for industrial air dryer

US4023940A · kind A · utility

35Cited by
3References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 2, 1975
Grant dateMay 17, 1977
Priority date
Expiry dateJul 2, 1995

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D53/26
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A regeneration cycle control for a dessicant air dryer of the kind in which regeneration is effected by passing heated air through the bed; a thermal sensor senses the bed outlet temperature and de-energizes the regeneration air heater when a given outlet temperature T1 is reached, after which regeneration air flow is continued to cool the bed to a lower temperature T2, at which point the regeneration cycle is terminated and on-stream operation resumed. In a dual-bed dryer, the beds are maintained alternately in on-stream mode and regeneration mode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.