| 摘要 |
The invention relates to refrigeration engineering and can be used in vapor compression machines, in particular with ejector. A vapor compression machine with ejector comprises connected in sequence compressor, condenser, ejector connected with receiving chamber to outlet of evaporator along low pressure vapor line, and with diffuser – to vapor cavity of liquid separator at supercharge of ejector connected to compressor liquid cavity of which is connected to input of evaporator. At low pressure vapor line a thermo-presser is installed, its diffuser is connected to receiving chamber of ejector and working nozzle – to outlet from vapor heat exchanger connected along line of high pressure vapor with its inlet to outlet of compressor and with outlet – to inlet of condenser outlet of which is connected to inlet of vapor-liquid heat exchanger along liquid line, outlet of which along liquid line is connected to working nozzle of ejector and receiving chamber of thermo-presser. The outlet of vapor-liquid heat exchanger along line of low pressure vapor is connected to inlet of vapor heat exchanger and inlet of vapor-liquid heat exchanger along low pressure vapor line – to vapor cavity of circulation liquid separator placed at outlet of evaporator at inlet of which circulation jet pump is installed, receiving chamber of that one is connected to liquid cavity of circulation liquid separator and working nozzle – to liquid cavity of liquid separator at ejector supercharge, receiving chamber of that one is connected to vapor cavity of liquid separator at suction of ejector connected to diffuser of thermo-presser as well. Due to increase of vapor at inlet of compressor power losses of compressor at vapor compression are decreased and due to that power efficiency of vapor-compressor refrigeration machine is increased. |
