Flow control at flash tank of open cycle vapor compression heat pumps
US4466253A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1982 |
| Grant date | Aug 21, 1984 |
| Priority date | — |
| Expiry date | Dec 23, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An arrangement of controls for a vapor compression open cycle industrial process heat pump permits the level of liquid and fluid pressure in a flash tank to be simultaneously and independently monitored and regulated to assure efficient operation of the system and to prevent equipment failure. Liquid level sensing means send a signal to a modulatable valve associated with a liquid discharge pump to maintain the liquid in the flash tank at an optimum level. At the same time, fluid pressure sensing means send a signal to a modulatable inlet throttle valve to regulate fluid pressure in the tank by regulating fluid as required, to maintain tank fluid pressure at the desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.