1. At present, the main use of waste heat or boiler-generated thermal energy,
2. The current equipment is mainly lithium bromide refrigeration units.
3. The principle is roughly as follows:
Lithium bromide absorption refrigerator is mainly composed of generator, condenser, evaporator, absorber, heat exchanger, circulating pump and other parts.
During the operation of the lithium bromide absorption chiller, when the aqueous solution of lithium bromide is heated by the heat medium water in the generator, the water in the solution is continuously vaporized;
With the continuous vaporization of water, the concentration of the aqueous lithium bromide solution in the generator is continuously increasing, and it enters into the absorber;
Water vapor enters into the condenser, and it is condensed by cooling water in the condenser, and then it becomes high-pressure, low-temperature liquid water;
Water vapor enters into the condenser, and is condensed by cooling water inside the condenser, and becomes high-pressure low-temperature liquid water;
When the water in the condenser enters the evaporator through the throttle valve, it expands rapidly and vaporizes, and absorbs a large amount of heat from the refrigerant water in the evaporator in the process of vaporization, so as to achieve the cooling and refrigeration purpose;
During this process, the low-temperature water vapour enters the absorber, and is absorbed by the aqueous lithium bromide solution inside the absorber, and the concentration of the solution is gradually reduced, and then sent back by the circulation pump to the The solution concentration is gradually reduced, and then sent back to the generator by the circulation pump to complete the whole cycle. So the cycle continues, continuous production of cold.