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Flue gas waste heat recovery system and method

A flue gas waste heat and recovery system technology, which is applied in heating systems, hot water central heating systems, heating methods, etc., can solve the problem of large volume of flue gas waste heat recovery devices, restrictions on deep recovery of flue gas waste heat, and large boiler smoke volume and other problems, to achieve the effect of simple structure, low production cost, and reduced floor space

Pending Publication Date: 2017-12-12
BEIJING ZHONGKE HUAYU ENERGY TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the usual practice is to use a flue gas waste heat recovery device independent of the chimney to recover the heat energy in the flue gas. Due to the large amount of smoke exhausted by the boiler, the flue gas waste heat recovery device is generally large in size, resulting in a large footprint and Most of the current waste heat recovery devices that can deeply recover flue gas waste heat have complex structures and are expensive, which restricts the deep recovery of flue gas waste heat

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  • Flue gas waste heat recovery system and method
  • Flue gas waste heat recovery system and method
  • Flue gas waste heat recovery system and method

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[0049] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0050] like figure 1 As shown, the exemplary flue gas waste heat recovery system of the present invention includes:

[0051] A chimney base section 103 that can be connected to the boiler 101 through the boiler flue 102;

[0052] The upper end of the chimney base section 103 is sequentially connected with a water receiving tray 104, a chimney transition section 105, a water spray tray 106, a chimney shrinkage section 107 and a chimney exhaust section 108;

[0053] The chimney base section 103 is provided with a flue gas inlet and a water outlet for connecting with the boiler flue 102, and the wate...

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Abstract

The invention discloses a flue gas waste heat recovery system which comprises a chimney foundation section, a water receiving disc, a chimney transition section, a water spraying disc, a chimney contraction section and a chimney emission section which are sequentially connected with one another from bottom to top; the chimney foundation section is provided with a flue gas inlet hole which is used for being connected with a boiler flue and a water outlet hole; the water outlet hole of the chimney foundation section and a water outlet hole of the water receiving disc are connected to a medium water inlet hole of a waste heat extraction and utilization mechanism respectively; and a medium water outlet hole of the waste heat extraction and utilization mechanism is communicated with a water inlet hole of the water spraying disc. The invention also discloses a flue gas waste heat recovery method. According to the flue gas waste heat recovery system and method, a chimney with the waste heat recovery function is used to replace the traditional chimney, so that the occupying area is effectively reduced; meanwhile, the chimney with the waste heat recovery function has a simple structure, is low in production cost, can be used for lowering the investment cost and is convenient to popularize and apply; and the flue gas waste heat recovery system can recover both sensible heat in the flue gas waste heat and latent heat in the flue gas waste heat, so that the utilization ratio of energy is increased.

Description

technical field [0001] The invention relates to the technical field of energy saving, in particular to a flue gas waste heat recovery system and method. Background technique [0002] The flue gas produced by boiler combustion contains a lot of heat energy. Direct discharge not only wastes energy, but also produces "white smoke" after the water vapor in the flue gas condenses in cold air, causing environmental pollution. Therefore, recovering the heat energy in the flue gas can not only save energy but also reduce environmental pollution, which has important social and economic benefits. [0003] At present, the usual practice is to use a flue gas waste heat recovery device independent of the chimney to recover the heat energy in the flue gas. Due to the large amount of smoke exhausted by the boiler, the flue gas waste heat recovery device is generally large in size, resulting in a large footprint and Most of the current waste heat recovery devices capable of deep recovery o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28C3/08F24D3/02F24D3/18
CPCF24D3/02F24D3/18F28C3/08F24D2200/18F24D2200/12
Inventor 张军梁忠刘宇赵伟
Owner BEIJING ZHONGKE HUAYU ENERGY TECH DEV