公开(公告)号：US20210071922A1

公开(公告)日：2021-03-11

申请号：US16958812

申请日：2018-12-31

Applicant: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LIMITED

Inventor： Khaled GOMMED ,  Gershon GROSSMAN ,  Yigal EVRON

IPC: F25B43/04 ,  F25B15/06 ,  F25B30/04

Abstract: A high-efficiency, motorless purge system for closed-cycle absorption heat pumps, adapted for both absorption heat transformers and absorption chillers, using a series of valves to control the entry and exit of absorbent solution into a low-pressure, secondary absorption vessel. A small percentage of the total circulating solution is forced under pressure into the secondary absorption vessel via a spray nozzle, causing adiabatic absorption of absorbate vapor by the solution. Non-condensable gases accumulate in the secondary absorber until a certain vapor pressure is reached, upon which, gas, and possibly liquid, are transferred to an exhaust vessel having an exit vent for non-condensable gases. In an absorption chiller system, the secondary absorber has an internal heat exchanger to lower the temperature of the solution within, to facilitate the absorption process.