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An anti-dust, anti-wear and anti-corrosion flue gas heat exchanger

A flue gas heat exchanger, anti-wear technology, applied in the direction of heat exchanger, indirect heat exchanger, heat exchanger type, etc., can solve the problem of poor convective heat transfer capacity of dust accumulation, reduce tail dust accumulation, strengthen Convective heat transfer performance, enhanced heat transfer effect

Active Publication Date: 2019-03-12
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of serious dust accumulation and poor convective heat transfer capability in the existing flue gas utilization heat exchange equipment, the present invention proposes a flue gas flue gas with good heat exchange performance, small flow resistance, no dust accumulation, wear resistance and low temperature corrosion. Gas waste heat recovery heat exchanger

Method used

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  • An anti-dust, anti-wear and anti-corrosion flue gas heat exchanger
  • An anti-dust, anti-wear and anti-corrosion flue gas heat exchanger
  • An anti-dust, anti-wear and anti-corrosion flue gas heat exchanger

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Embodiment Construction

[0027] The present invention will be further described in detail below with reference to the embodiments described in the accompanying drawings.

[0028] see figure 1 , 2, 3, the present invention includes a heat exchanger shell 1 and a finned tube bundle 2, wherein the finned tube bundle 2 is arranged in the heat exchanger shell 1 in a row arrangement, and the heat exchanger shell 1 The two opposite sides are respectively provided with an extra-tube medium inlet 3 and an extra-tube medium outlet 4. The finned tube bundle 2 includes a number of connected base tubes 7 and a number of fin groups 8 installed on the base tubes 7. An inlet 5 for medium in the pipe and an outlet 6 for medium in the pipe are arranged on the top. The set of fins 8 is a set of fins connected to the outer wall of the base tube at predetermined intervals along the axial direction of the base tube, wherein each set of fins includes two quadrilateral fins located on both sides of at least one base tube, e...

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Abstract

The invention discloses an anti-ash-deposition abrasion-resistant and anticorrosion flue gas heat exchanger. The anti-ash-deposition abrasion-resistant and anticorrosion flue gas heat exchanger comprises a heat exchanger shell and a finned-tube bundle. The heat exchange tube bundle is arranged in the shell and arranged in sequence. Each finned tube comprises a base tube part and an H-shaped fin, dimpled structures are arranged on the base tube part of the finned tube, and vortex generators are arranged in the positions, on the windward side and the leeward side of the base tube, of the fin of the finned tube. Under the condition that heat exchange is improved, the flow resistance of the anti-ash-deposition abrasion-resistant and anticorrosion flue gas heat exchanger can be reduced, the ash-deposition, abrasion and corrosion risks of the heat exchanger can be remarkably lowered, the equipment operation safety is improved, and the service life of equipment is prolonged.

Description

technical field [0001] The invention belongs to the technical field of heat exchangers utilizing flue gas waste heat, and is applicable to various types of heat exchange equipment and heating equipment in industries such as energy, petroleum, chemical industry, and smelting, and specifically relates to a kind of equipment capable of enhancing anti-dust and anti-wear , Anti-corrosion, flue gas heat exchanger that improves the heat exchange efficiency of the flue gas heat exchanger. Background technique [0002] In my country's energy consumption, industrial energy consumption accounts for the largest share, among which the petroleum, chemical, and electric power sectors are all major energy consumers. At the same time, flue gas waste heat resources account for a large proportion of the total waste heat resources in various industries. The effective utilization of the waste heat of the flue gas can greatly reduce the consumption of primary energy and improve the efficiency of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/16F28F1/12F28F1/32F28F9/26F28F13/02F28F13/12F28F19/00F28F21/08
CPCF28D7/16F28D21/0003F28F1/12F28F1/32F28F9/26F28F13/02F28F13/12F28F19/002F28F21/082
Inventor 何雅玲汤松臻王飞龙裴勇
Owner XI AN JIAOTONG UNIV
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