Heating efficient smoke type lithium bromide absorbing type cold and hot water unit

Abstract

The invention relates to a heating efficient smoke type lithium bromide absorbing type cold and hot water unit, which is characterized in that the unit is additionally provided with a gas-gas heater (18), a heating evaporator (27), a heating absorber (20), a heating solution heat exchanger (21), a heating refrigerant pump (22) and a circulating water pump (26), wherein the heating evaporator (27) and the heating absorber (20) are arranged in a same chamber; a path of hot water pipeline is additionally arranged on a cold and hot water inlet pipe (15), the hot water enters a heat exchange pipe of the heating absorber (20); a path of dilute solution pipeline is additionally arranged on a solution pump outlet pipe (12), the dilute solution is cooled by the heating solution heat exchanger (21) and then enters the heating absorber (20) to be sprayed; and a path of low-temperature refrigerant water supplementing pipeline (24) is additionally arranged on an evaporator sac (14), and the refrigerant water enters a heating evaporator sac (28) to be used as supplementing water of the low-temperature refrigerant water. By using the unit disclosed by the invention, the smoke discharge temperature can be effectively lowered, the comprehensive energy utilization rate of the whole system can be improved, and the unit is simple to operate.

Description

technical field [0001] The invention relates to a flue gas type lithium bromide absorption cold and hot water unit. It belongs to the technical field of air conditioning equipment. Background technique [0002] At present, in the field of natural gas distributed power generation and industrial furnace applications, the temperature of the flue gas emitted by gas-fired generator sets and industrial furnaces is relatively high (about 400°C), and the heat taken away by the exhaust gas and its proportion to energy consumption are relatively large , In order to recycle the waste heat of flue gas, some occasions are promoting the application of flue gas-type lithium bromide absorption type cold and hot water unit technology to improve the comprehensive utilization rate of energy and reduce environmental pollution. [0003] Flue gas-type lithium bromide absorption cold and hot water units use high-temperature flue gas discharged from external devices such as internal combustion eng...

AI Technical Summary

Problems solved by technology

Due to the limitation of the outlet temperature of the heating hot water produced, the solution temperature is high, resulting in a high exhaust gas temperature, which affects the comprehensive energy utilization rate of the entire system. The temperature is around 145°C, and the comprehensive energy utilization rate of the whole system is generally around 72%. Especially in the cold winter, when the outdoor temperature is low, the chimney emits white smoke, which wastes energy and pollutes the environment.

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