High-efficiency vapor double effect lithium bromide absorption type refrigerating unit

The invention relates to a refrigerating unit, in particular to a high efficiency vapor double effect lithium bromide absorption refrigerating unit. The invention comprises a high temperature regenerator, a low temperature regenerator, an evaporator, an absorber, a condenser, a low temperature heat exchanger, a high temperature heat exchanger, a low temperature heat recovery device, a high temperature heat recovery device, a dilute solution pump, a concentrated solution pump, a refrigerant pump, and pipelines and valves which are used for connecting each component; the dilute solution output pipeline of the absorber is connected with two subcircuits which are in parallel connection; the solution distribution ratio of the two subcircuits is 90-70:10-30; one subcircuit passes through the low temperature heat exchanger and the high temperature heat exchanger; the other subcircuit passes through a refrigerant condensate heat exchanger, the low temperature heat recovery device and the high temperature heat recover