| 摘要 |
The invention relates to absorption refrigerating machines with injector. The absorption refrigerating machine with injector comprises connected in sequence desorber with lines of high pressure refrigerant vapor, low concentration liquid solution of refrigerant and absorbent, concentrated liquid solution of refrigerant and absorbent, condenser connected by its inlet to line of high pressure refrigerant vapor, and by outlet to inlet of vapor-liquid heat exchanger through line of liquid high pressure refrigerant outlet of which through line of liquid high pressure refrigerant is connected to inlet of evaporator outlet of which is connected to inlet of vapor-liquid heat exchanger through line of low pressure refrigerant outlet of which at line of low pressure refrigerant is connected to receiving chamber of injector diffuser of which is connected through line of intermediate pressure refrigerant to inlet of absorber to outlet of which through line of low-concentration liquid solution of refrigerant and absorbent outlet of solution heat exchanger is connected, with inlet connected through line of low-concentration liquid solution of refrigerant and absorbent to outlet of desorber. Outlet from absorber through line of condensed liquid solution of refrigerant and absorbent is connected to inlet of solution heat exchanger outlet from which is connected through line of concentrated liquid solution of refrigerant and absorbent to inlet of desorber. The working nozzle of injector is connected through line of liquid refrigerant to outlet from vapor-liquid heat exchanger and diffuser – to liquid separator at discharge of injector, vapor cavity of that one is connected to inlet of absorber at line of intermediate pressure refrigerant and liquid cavity – to inlet of evaporator. At line of low pressure refrigerant vapor a thermo-presser, boost and recirculation jet pumps, vapor heater and liquid separators are installed. The invention provides increase of power efficiency of absorption refrigerating machine through increase of suction pressure of injector and increase of its coefficient of ejection. |
