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

A technology of heat source tower heat pump and total heat recovery, which is applied in heat recovery systems, heat pumps, heating methods, etc., to achieve the effects of simple and efficient system, large heat and mass transfer potential difference, and large heat and mass transfer area

CN111023134AInactive Publication Date: 2020-04-17SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-04-17
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

Embodiment Construction

[0024] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 As shown, a heat source tower heat pump system for total heat recovery and upgrading of flue gas waste heat of the present invention includes a flue gas circuit, a circulating water circuit and a refrigerant circuit, and the circulating water circuit is connected with the flue gas circuit and the refrigerant circuit to carry out Flue gas waste heat total heat recovery and flue gas reheating. The refrigerant circuit is connected to the heating network side, and the low-level waste heat is upgraded and supplied to the heating network. In the heat source tower, the huge temperature difference between the low-temperature (relative to the flue gas) circulating water and the exhaust flue gas and the water vapor partial pressure difference are used to capture a large amount of sensible heat and late...