A heating efficient flue gas type lithium bromide absorption cold and hot water unit

Abstract

The invention relates to a heating efficient flue gas type lithium bromide absorption type cold and hot water unit, which is characterized in that: the unit adds a flue gas heat exchanger (18), a heating evaporator (27), a heating absorber (20), a heating The solution heat exchanger (21), the heating refrigerant pump (22) and the circulating water pump (26), the heating evaporator (27) and the heating absorber (20) are set in the same cavity, and the cold and hot water inlet pipes (15 ), and the hot water enters into the heat exchange tube of the heating absorber (20); a dilute solution pipeline is added on the outlet pipe (12) of the solution pump, and the dilute solution passes through the heating solution heat exchanger (21) Cool down and enter the heating absorber (20) for spraying, add a low-temperature refrigerant water replenishment pipeline (24) on the evaporator liquid bag (14), and this refrigerant water enters the heating evaporator liquid bag (28) Hydrates as low temperature refrigerant water. The invention effectively reduces the exhaust gas temperature, improves the comprehensive energy utilization rate of the whole system, and has simple unit operation.

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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