| 摘要 |
The absorption refrigerating machine with ejector comprises connected in sequence desorber with lines of vapor of high pressure cold agent, low-concentration liquid solution of cold agent and absorbent, concentrated liquid solution of cold agent and absorbent, condenser connected by its input to vapor line of high pressure cold agent and by the output to input of vapor-liquid heat exchanger at line of liquid cold agent, outlet of which is connected to input of evaporator, outlet of which is connected to input of vapor-liquid heat exchanger by line of vapor of low pressure cold agent. The outlet of vapor-liquid heat exchanger is connected to receiving chamber of ejector, working nozzle of which is connected to vapor line of high pressure cold agent, and diffuser by line of vapor of intermediate pressure cold agent is connected to inlet of absorber. To inlet of absorber by line of low concentration liquid solution of cold agent and absorbent solution the heat exchanger is connected, with inlet connected to outlet of desorber. Outlet from the absorber by line of concentrated liquid solution of cold agent and absorbent is connected to inlet of solution heat exchanger, outlet of which is connected to inlet of desorber. At vapor line of low pressure cold agent thermo-presser is installed, with working nozzle connected in sequence to heat exchanger–heater, vapor and vapor-liquid heat exchangers, and jet pump connected by working nozzle to outlet from liquid heat exchanger inlet of which is connected to outlet of condenser. Liquid heat exchanger is installed to liquid separator after evaporator connected by its liquid cavity to reception chamber of jet pump and by vapor cavity – to line of low pressure cold agent and outlet from evaporator, inlet of which is connected to diffuser of jet pump. Due to increase of pressure at inlet of ejector the coefficient of ejection and power efficiency of absorption refrigeration machine is increased. |
