Lithium bromide absorption chiller is mainly composed of generator, condenser, evaporator, absorber, heat exchanger, circulating pump and so on.
During the operation of lithium bromide absorption chiller, when the lithium bromide aqueous solution is heated by the hot medium water in the generator, the water in the solution is constantly vaporized. With the constant vaporization of water, the concentration of lithium bromide water solution in the generator increases continuously and enters the absorber; The water vapor enters the condenser, is cooled by the cooling water in the condenser and condensed, and becomes liquid water at high pressure and low temperature. When the water in the condenser enters the evaporator through the throttle valve, it rapidly expands and vaporizes. In the process of vaporization, it absorbs a lot of heat of the refrigerant water in the evaporator, so as to achieve the purpose of cooling and refrigeration. In this process, the low-temperature water vapor enters the absorber, is absorbed by the lithium bromide aqueous solution in the absorber, the concentration of the solution gradually decreases, and then is sent back to the generator by the circulating pump to complete the whole cycle. This cycle, continuous production of cooling capacity.
Due to the lithium bromide dilute solution in the absorber has been cooling, low temperature, to save on heating of the dilute solution heat, improve thermal efficiency of the entire unit, added a heat exchanger in the system, let the generator out of concentrated solution of high temperature and dilute solution at low temperature for heat transfer from the absorber is raise the temperature of the dilute solution into the generator.
