Smoke waste heat recovery and hot water white smoke elimination system and working method thereof

A flue gas waste heat and hot water technology, applied in heat pumps, climate sustainability, greenhouse gas reduction, etc., can solve the problems of incomplete flue gas waste heat recovery, complicated process, and inability to achieve flue gas whitening, and achieve simple structure , Avoid environmental pollution, improve combustion efficiency

Pending Publication Date: 2021-12-24
CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the present invention provides a flue gas waste heat recovery and hot water whitening system and its working method to solve the existing flue gas waste heat recovery is not complete, the process is complicated, and the flue gas cannot be realized Whitening Technical Issues

Method used

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  • Smoke waste heat recovery and hot water white smoke elimination system and working method thereof

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Embodiment

[0055] as attached figure 1 As shown, this embodiment provides a flue gas waste heat recovery and hot water whitening system, including a flue gas discharge system, a waste heat recovery system, a flue gas whitening system, and a monitoring and control system.

[0056] The flue gas discharge system includes a flue 2, a wind cap 11, a fixed support 12 and a water collection tank 15; The gas discharge side port is connected; the flue 2 is arranged vertically and runs through the roof panel 8 or the cover plate; the conical cover 9 is set on the outside of the flue 2 and is fixedly connected with the roof panel 8 or the cover plate; Set on the top of the flue 2, the wind cap 11 is set on the top of the fixed support 12; wherein, the wind cap 11 adopts a round umbrella-shaped wind cap; in this embodiment, the flue 2 adopts a flue; the flue 2 includes several flue pipe joints 13 , a number of flue pipe joints 13 are spliced ​​vertically sequentially, and flanges 14 are fixedly con...

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Abstract

The invention discloses a smoke waste heat recovery and hot water white smoke elimination system and a working method thereof. The system comprises an evaporator and a heater, the evaporator and the heater are embedded in a flue, the heater is arranged above the evaporator, a refrigerant outflow side port of the evaporator is connected with a refrigerant inflow side port of a compressor, a refrigerant outflow side port of the compressor is connected with a refrigerant inflow side port of a condenser, a refrigerant outflow side port of the condenser is connected with a refrigerant inflow side port of the evaporator, a white smoke eliminating hot water outflow side port of the heater is connected with a circulating hot water inflow side port of the condenser, and a circulating hot water outflow side port of the condenser is connected with a white smoke eliminating hot water inflow side port of the heater. According to the system, the evaporator is in direct contact with the smoke so that sensible heat and latent heat in the smoke are recycled; and the temperature of the cooled and dehumidified smoke is increased through the heater, the dew point temperature of the smoke is increased, the white smoke eliminating effect is achieved, and the combustion efficiency of a gas-fired boiler is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of boiler flue gas waste heat recovery, and in particular relates to a flue gas waste heat recovery and hot water whitening system and a working method thereof. Background technique [0002] The main component of natural gas is hydrocarbons. During the use of natural gas boilers, a large amount of water vapor will be discharged along with the high-temperature flue gas with a temperature generally between 50-180 °C; the high-temperature flue gas discharged not only causes sensible heat loss, but also a large amount of Among them, the latent heat of vaporization discharged with the flue gas accounts for a large proportion, generally accounting for nearly 50% of the low-level heating of natural gas, resulting in a large amount of energy loss; at the same time, the water vapor discharged with the flue gas condenses when condensed Fog will cause "white smoke" to appear from the chimney, which not only affects the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J15/06F23J15/08F28B9/08F25B30/02F25B30/06
CPCF23J15/06F23J15/08F28B9/08F25B30/02F25B30/06Y02E20/30
Inventor 刘凯喻家帮邵晓丹
Owner CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD
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