| 摘要 |
The invention relates to refrigeration engineering, in particular to absorption refrigeration machines. An absorption refrigerating machine comprises connected in sequence a desorber with lines of low-concentrated solution of cold agent and sorbent, concentrated solution of cold agent and sorbent, vapor-like high pressure mix of cold agent and residual sorbent, a condenser connected by its inlet to line of vapor-like high-pressure cold agent mixture and residual sorbent, and by outlet – to inlet of vapor-liquid heat exchanger along line of liquid cold agent connected by its outlet along line of liquid cold agent to inlet of evaporator, to outlet of which inlet of vapor-liquid heat exchanger along line of low pressure cold agent vapor is connected. The vapor-liquid heat exchanger by its outlet along line of low pressure cold agent vapor to inlet of absorber outlet of which along line of concentrated solution of cold agent and sorbent is connected to inlet of heat exchanger of solutions connected by line of concentrated solution of cold agent and sorbent to inlet of desorber outlet of which along line of low concentration solution of cold agent and sorbent is connected to inlet of heat exchanger of solutions connected by its outlet by line of low concentration solution of cold agent and sorbent to inlet of absorber. At line of vapor of low pressure cold agent thermo-presser is installed, this is connected by its working nozzle to outlet of vapor-liquid heat exchanger along line of low pressure cold agent vapor, by diffuser – to inlet of absorber, and to outlet of vapor-liquid heat exchanger along line of high pressure liquid cold agent a working nozzle of jet pump is connected, this is connected by its receiving chamber to liquid cavity of circulation liquid separator installed downstream of evaporator and by diffuser – to inlet of evaporator. Use of the absorption refrigerating machine with thermo-presser and jet pump makes it possible to increase pressure of cold agent in absorber, and, respectively, intensity of absorption process as well, and as result to increase the power efficiency of absorption refrigerating machine. |
