Petrenko Volodymyr Oleksiiovych,Yerin Volodymyr Oleksandrovych,Volovyk Aleksei Stanyslavovych
申请号：
UA201308241
公开号：
UA107524C2
申请日:
2013.07.01
申请国别(地区):
UA
年份:
2015
代理人:
摘要：
A method for cold generation in a cascade compression and ejecting refrigeration machine comprising a compression refrigeration machine in the lower-stage cascade and a heat reclaiming ejector refrigerating machine in the upper-stage cascade, which provides for compression of low pressure refrigerant vapor in the compressor to a state of overheating at high temperatures, its precooling in additional heater-desuperheater of the ejector refrigerating machine and further cooling and condensation at high pressure in the condenser-evaporator, the throttling of resulting liquid to a low pressure in a throttle valve, and feeding thereof to the evaporator to produce a refrigerating effect. Additionally, the method includes the preheating of working medium supplied to the steam generator in the additional heater-desuperheater by utilizing the heat of compressed superheated refrigerant vapor discharged from the lower-stage compressor, supplying the heat to the liquid working medium in the steam generator to produce high pressure steam, the ejection and compression in the ejector of low pressure refrigerant vapor from the condenser-evaporator, the liquefaction of the working and cold vapor mixture at an intermediate pressure in the condenser, the separation of the liquid coming from the condenser into two flows, the increasing of the pressure of one of these flows in a feed pump and supplying thereof to a steam generator, the throttling of the second flow in a control valve to low pressure and supplying thereof to the evaporator-condenser to produce a refrigerating effect.Способ производства холода в каскадной компрессионно-эжекторной холодильной машине включает компрессионную холодильную машину в нижней ступени каскада и теплоиспользующую эжекторную холодильную машину в верхней ступени каскада, который предусматривает сжатие в компрессоре паров хладагента низкого давления до состояния перегрева при высокой температуре, их предварительное охлаждение в дополнительном нагревател
