ABSORPTION COOLING MACHINE WITH MULTI-STAGE EJECTOR Russian patent published in 2012 - IPC F25B15/02 

FIELD: power industry.

SUBSTANCE: absorption cooling machine with multi-stage ejector includes closed circulation circuit in which generator, multi-stage ejector, condenser, throttle, evaporator, pump and heat exchanger are installed in series. Housing of multi-stage ejector is covered with casing so that cavity being a cooling jacket is formed and it consists of n stages which are in-series arranged in the steam flow direction and connected to each other, and each of which includes receiving chamber, nozzle and diffuser. Receiving chamber and nozzle of stage 1 are connected via pipelines to evaporator and generator respectively. Generator is connected to heat exchanger and pump. Receiving chambers of stage 2 and next stages are connected to diffusers of previous stages; guide vanes and heat exchanger are arranged inside them; nozzles of stage 2 and next stages are in-parallel connected to delivery branch pipe of the pump. Casing adjoins the condenser housing and is equipped with inlet branch pipe; cooling jacket and diffuser of the last stage are connected to condenser through the holes made in the wall of its housing and cover plate respectively.

EFFECT: higher efficiency of absorption cooling machine with multi-stage ejector.

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