EJECTOR REFRIGERATION CIRCUIT Russian patent published in 2019 - IPC F25B1/06 F25B41/00 F25B1/10 

FIELD: refrigerating equipment.

SUBSTANCE: invention relates to refrigeration equipment. Ejector refrigeration loop (1) contains a high-pressure ejector circuit (3) containing, in the circulating refrigerant flow direction: heat removing heat exchanger / gas cooler (4) having an inlet side (4a) and an outlet side (4b); two adjustable ejectors (6, 7) with different performance and connected in parallel. Each of the adjustable ejectors (6, 7) contains a controlled working nozzle (100). Loop includes a primary high pressure inlet port (6a, 7a), a secondary low pressure inlet port (6b, 7b), and an output port (6c, 7c). Adjustable ejectors (6, 7) primary high-pressure input ports (6a, 7a) are fluidly connected to the heat removing heat exchanger / gas cooler (4) output side (4b). Receiver (8) has an inlet (8a), a liquid outlet (8c) and a gas outlet (8b). Inlet (8a) is fluidly connected to the adjustable ejectors (6, 7) output ports (6c, 7c). Compressor (2a, 2b, 2c) has an input side (21a, 21b, 21c) and an output side (22a, 22b, 22c). Compressor (2a, 2b, 2c) input side (21a, 21b, 21c) is fluidly connected to the receiver (8) gas outlet (8b). Outlet side (22a, 22b, 22c) is fluidly connected to the heat removing heat exchanger / gas cooler (4) inlet side (4a). In the circulating refrigerant flow direction refrigerating evaporator (5) channel contains a refrigerant expansion device (10) having an inlet side (10a), which is fluidly connected to the receiver (8) liquid outlet (8c), and an outlet side (10b), and a refrigerated evaporator (12), which is fluidly connected between the refrigerant expansion device (10) outlet side (10b) and the adjustable ejectors (6, 7) secondary low-pressure input ports (6b, 7b).

EFFECT: proposed is the ejector refrigeration circuit.

15 cl, 2 dwg