A cold double-effect lithium bromide absorption refrigeration cycle system

Abstract

The invention relates to a cool double-effect lithium bromide absorption type refrigeration cycle system. A generator is communicated with a condenser, the condenser is communicated with an evaporator through a first refrigerant water passage, one end of a second refrigerant water passage is communicated with the condenser, the other end of the second refrigerant water passage passes through a first absorber to be communicated with a second absorber, the first absorber is communicated with the evaporator through a second refrigerant water vapor pipeline, one end of a first dilute solution pipeline and one end of a second dilute solution pipeline are communicated with the second absorber, the other ends of the first dilute solution pipeline and the second dilute solution pipeline are communicated with the generator, one end of a second concentrated solution pipeline is communicated with the first absorber, the other end of the second concentrated solution pipeline is communicated with a first concentrated solution pipeline, one end of the second dilute solution pipeline is communicated with the first absorber, the other end of the second dilute solution pipeline is communicated with the first dilute solution pipeline, a first solution pump is arranged on the first dilute solution pipeline, the generator is heated by a first high-altitude heat source, the condenser is cooled by a second cooling heat source, the evaporator is heated by a low-altitude heat source, and the absorbers are cooled by a first cooling heat source. The system is used in an absorption type water source heat pump system.

Description

technical field [0001] The invention relates to an absorption refrigeration cycle system, in particular to a cold double-effect lithium bromide absorption refrigeration cycle system. Background technique [0002] Traditional absorption refrigeration cycle systems such as Figure 23 As shown, it is mainly composed of a generator 1, a condenser 2, an evaporator 3, a second absorber 5, a solution heat exchanger 6, a first solution pump 10 and connected pipelines. Under the action of an external heat source, the generator 1 concentrates the lithium bromide solution in it to generate high-temperature and high-pressure refrigerant water vapor, which enters the condenser 2 through the first refrigerant water vapor pipeline 11 to condense, and the condensed low-temperature The refrigerant water enters the evaporator 3 through the first refrigerant water channel 12 after throttling and depressurizing through the first throttling expansion device 8, and in the evaporator 3, the refrig...

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Problems solved by technology

[0004] The present invention solves the problem that the outlet temperature of the saturated dilute solution of the second absorber and the temperature of the first cooling heat source are relatively low during the operation of the traditional lithium bromide absorption refrigeration cycle system, so that the relatively high temperature of the first cooling heat source cannot satisfy lithium bromide absorption. In order to solve the problem of the application conditions of the refrigerating cycle system, a cold double-effect lithium bromide absorption refrigerating cycle system is provided.

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