The picture shows the schematic diagram of the steam two-effect lithium bromide absorption chiller. FIG dilute solution pumped from a solution, regulated by the valves F 1, the cryogenic heat exchanger and enters the regenerator condensate water, and then features two: by way regulating valve F 2 after the high-temperature heat exchanger to the high voltage generator The other way from the condensate regenerator outlet, through the regulating valve F 3 into the low pressure generator. The dilute solution in the high pressure generator is heated by the steam flowing in the tube to generate high pressure high temperature refrigerant vapor, the solution is concentrated, and the dilute solution in the low pressure generator is heated by the refrigerant vapor from the high pressure generator to generate twice The refrigerant vapor is also concentrated. After the low-pressure generator of the high-pressure generator heats the low-pressure generator, it condenses into refrigerant water. After throttling, the pressure is lowered and enters the condenser. Together with the refrigerant vapor generated by the low-pressure generator, it is cooled by the flow in the condenser tube. The water is cooled. The refrigerant water accumulated in the condenser enters the evaporator after being throttled by the U -shaped tube. Since the pressure in the evaporator is very low, part of the refrigerant water evaporates, and most of the refrigerant water is supplied by the refrigerant pump. Conveying, spraying on the evaporator tube cluster, sucking the heat of the cold water flowing in the tube and evaporating, so that the temperature of the cold water is lowered, thereby achieving the purpose of refrigeration. Â