Smoke gas waste heat full heat recycling and upgrading heat source tower heat pump

Abstract

The invention discloses a smoke gas waste heat full heat recycling and upgrading heat source tower heat pump. The smoke gas waste heat full heat recycling and upgrading heat source tower heat pump comprises a smoke gas loop, a circulating water loop and a refrigerant loop. The giant temperature difference between low-temperature circulating water and exhaust smoke gas and water steam partial pressure difference are used for achieving capturing of a large amount of sensible heat and latent heat contained in smoke gas, through refrigerant steam compression circulation, upgrading of captured low-level waste heat can be achieved, and the heat is directly supplied to a heat network. Low-temperature circulating water is used for replacing a solution to serve as heat source tower circular workingmedia, the regeneration problem after solution humidity absorbing can be thoroughly solved, and a system is more simple and efficient. A direct contact type heat source tower is adopted as a low-temperature circulating water and smoke gas heat exchange device, the heat transfer and mass transfer coefficient is high, the heat mass transfer area is large, the heat mass transfer potential differenceis large, the main heat transfer and mass transfer capacity is high, the corrosion problem of a dividing wall type heat exchanger in the wall heat use can be thoroughly solved, heat of a compressor exhaust overheat segment is used for reheating smoke gas after total heat recycling, the phenomenon that final exhaust smoke is in the saturation state can be avoided, and the wet smoke plume phenomenon can be avoided.

Description

technical field [0001] The invention belongs to the field of waste heat recovery and utilization, and relates to a heat source tower heat pump for total heat recovery and quality improvement of flue gas waste heat. Background technique [0002] Exhaust smoke from coal-fired gas-fired power plants or boilers in thermal stations contains a large amount of water vapor. When the smoke from the chimney comes into contact with the air in the outdoor environment, the water vapor in the flue gas will condense at the chimney outlet and form a "white smoke" phenomenon. , causing visual pollution, this phenomenon is not conducive to the uplift and diffusion of smoke, it will cause corrosion to the equipment and buildings around the chimney, and it will also affect the surrounding ecological environment. A large amount of sensible heat and latent heat contained in the flue gas is discharged to the environment, resulting in a waste of energy. [0003] At present, there are mainly the fo...

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Problems solved by technology

And the system does not have problems such as low-temperature corrosion of flue gas, regene

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