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Integrated fin with triangular winglet

A technology of triangular winglets and fins, applied in the field of integrated heat exchange tube fins, heat exchange and heating equipment, can solve the problems of difficult and precise installation, wear and tear, etc., to reduce volume, improve assembly accuracy, and facilitate large-scale The effect of streamlined installation

Pending Publication Date: 2021-07-13
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its difficulty in precise installation and serious wear and tear, the efficiency of waste heat recovery still needs to be further improved

Method used

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  • Integrated fin with triangular winglet
  • Integrated fin with triangular winglet
  • Integrated fin with triangular winglet

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that the advantages and features of the present invention are more readily understood by those skilled in the art, thereby making more clearly defined defined defined

[0023] Such as figure 1 As shown, the fins on the fins, in the flue gas flow direction, there is two through holes, and two vias are opened, and the central wiring of the two base tube 9 coincides with the center axis of the fins. The front portion of the base tube 9 on the sheet is the wind wind zone 1, the region of the two base tube 9 is the heat exchange enhancement zone 2, and the rear of the rear of the base tube 9 is the back wind region 3, that is, the fins along the flue gas flow. The direction is divided into a windshield zone 1, a heat transfer enhancement zone 2, and a back wind region 3; the center of the front end of the fin is opened with a front U-shaped s...

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Abstract

The invention discloses an integrated fin with a triangular winglet. Four corners of the fin are filleted corners, the edges of the fin are inward concave arcs, and the front and the back of the fin are both provided with U-shaped grooves; a fin surface heat exchange strengthening area is provided with one or more pairs of triangular winglets, and the fin surface heat exchange strengthening area is divided into a windward area, a heat exchange strengthening area and a leeward area in the smoke flowing direction. Eccentric treatment is adopted between the fins and the base tube, so that the windward area is larger than that of the leeward area. The structure is good in heat exchange performance, small in flowing resistance and good in flue gas waste heat recovery effect, the airflow separation and vortex phenomena occurring in a windward area and a leeward area can be effectively improved, the fin temperature field and flue gas speed collaboration is enhanced, the heat exchange efficiency is improved, meanwhile, abrasion is effectively reduced, and the service life of the finned tube is prolonged.

Description

Technical field [0001] The present invention relates to a heat exchanger fin, which specifically relates to an integrated heat transfer tube fin piece with a triangular wing in the waste heat recovery, which is suitable for various types of petroleum, chemical, metallurgy, electricity, energy and other industries. Heating and heating equipment. Background technique [0002] With the rapid development of society, my country's demand for energy is continuously expanded. The basic role of thermal electricity in my country's energy structure, its energy conversion efficiency has largely affects energy comprehensive utilization efficiency and total energy consumption. As the waste heat resource, the boiler exhaust waste heat has a high heat source temperature, the amount of waste heat is large, and the recovery is convenient. By using low-temperature provincial coal mini heat, the boiler is used to save the fuel, reduce environmental pollution, reduce dehydration water consumption Pro...

Claims

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Application Information

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IPC IPC(8): F28F1/32
CPCF28F1/325F28F2215/08
Inventor 刘继平胡文帅王进仕刘明严俊杰种道彤陈伟雄邢秦安赵全斌
Owner XI AN JIAOTONG UNIV
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