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Low temperature coal economizer with straight channel structure

A low-temperature economizer and straight channel technology, applied in the direction of feed water heaters, heat exchanger types, indirect heat exchangers, etc., can solve problems such as unreliable joints, low heat transfer efficiency, fouling and corrosion, and achieve short smoke The degree of gas turbulence, the uniformity of the flow field, and the effect of avoiding fouling

Pending Publication Date: 2017-08-08
TIANJIN HUASAIER HEAT TRANSFER EQUIP
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to solve the technical problems of low heat transfer efficiency, large volume and unreliable joints of the existing fluoroplastic tube economizer and the technology of easy clogging and fouling existing in the H-type fin economizer problem, to provide a low-temperature economizer with a straight channel structure that can solve the problems of soot blockage, fouling and corrosion while improving heat transfer

Method used

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  • Low temperature coal economizer with straight channel structure
  • Low temperature coal economizer with straight channel structure
  • Low temperature coal economizer with straight channel structure

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Embodiment Construction

[0038] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0039] combine figure 1 , figure 2 , image 3 , Figure 4As shown, the plate 5 constituting the plate bundle module 4 of the present invention includes a main heat transfer surface 501, a spoiler corrugation 502, a pressure-bearing corrugation 503 and a split corrugation 504, and the spoiler corrugation 502 is convex relative to the main heat transfer surface 501. Corrugations, pressure-bearing corrugations 503 and split-range corrugations 504 are concave corrugations relative to the main heat transfer surface. Correspondingly, after a plurality of plates 5 are stacked into the plate bundle module 4, the flow along the longitudinal folding path is formed in the plate bundle module 4 respectively. The folded flow chan...

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Abstract

The invention relates to the technical field of boiler fuel gas waste heat recovery equipment, and particularly to a low temperature coal economizer with a straight channel structure. The low temperature coal economizer comprises a heat transfer module, a medium channel box arranged at one end of the heat transfer module and flue transition boxes on the upper side and the lower side of the heat transfer module. According to the low temperature coal economizer with the straight channel structure, the problems in the prior art that the conventional plate heat exchanger is liable to flow passage blockage, dirt accumulation and corrosion, and temperature crossover of cold and hot mediums are solved.

Description

technical field [0001] The invention relates to the technical field of boiler flue gas waste heat recovery equipment, in particular to a low-temperature economizer with a straight channel structure. Background technique [0002] The exhaust gas loss is the most important heat loss in the production of industrial boilers. The exhaust gas temperature is mostly around 150°C, which reduces the exhaust gas loss; lowering the exhaust gas temperature can effectively save energy and improve economy. The environmental benefits it brings , social and economic benefits are immeasurable. [0003] For industrial boilers, especially boilers of thermal power generation enterprises, most of the flue gas contains a large amount of dust, NOx, SO2, SO3. Due to the requirements of environmental protection and energy saving, it is necessary to cool down, remove dust, denitrify, and desulfurize the flue gas before allowing it to be discharged. To the atmosphere, the current common practice is to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22D1/00F28D9/00F28F3/08
CPCF22D1/00F28D9/00F28F3/08Y02E20/30
Inventor 宋秉棠赵殿金何磊
Owner TIANJIN HUASAIER HEAT TRANSFER EQUIP
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