CN203231680U - Corrugated fin of finned tube heat exchanger - Google Patents

Corrugated fin of finned tube heat exchanger Download PDF

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Publication number
CN203231680U
CN203231680U CN 201320151690 CN201320151690U CN203231680U CN 203231680 U CN203231680 U CN 203231680U CN 201320151690 CN201320151690 CN 201320151690 CN 201320151690 U CN201320151690 U CN 201320151690U CN 203231680 U CN203231680 U CN 203231680U
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CN
China
Prior art keywords
corrugated fin
heat exchanger
fin
corrugated
tube type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320151690
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Chinese (zh)
Inventor
周俊杰
张晓霞
郜海超
赵瑞
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Zhengzhou University
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Zhengzhou University
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Publication date
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Priority to CN 201320151690 priority Critical patent/CN203231680U/en
Application granted granted Critical
Publication of CN203231680U publication Critical patent/CN203231680U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the field of heat exchangers, in particular to a corrugated fin of a finned tube heat exchanger. Corrugated dip angles of the corrugated fin increase gradually. The corrugated fin is firmly sleeved on the outer side of side-by-side heat exchanging tubes and is in a broken-line shape, and an included angle between the broken-line-shaped corrugated fin and the horizontal plate increases gradually from an air inlet to the inside of the heat exchanger. The corrugated fin of the finned tube heat exchanger with the dip angles increasing gradually is easy to machine and manufacture and excellent in heat transferring performance.

Description

A kind of corrugated fin of fin-tube type heat exchanger
Technical field
The utility model relates to field of heat exchangers, relates in particular to the corrugated fin that a kind of ripple inclination angle of fin-tube type heat exchanger increases progressively gradually.
Background technology
Fin-tube type heat exchanger is little, in light weight because of its compact conformation, volume, efficient is high is extensive use of in fields such as petrochemical industry, refrigeration air-conditioner, Aero-Space, energy-saving and emission-reduction.The thermal resistance of fin-tube type heat exchanger fin air side accounts for about 70% of entire thermal resistance, and the heat exchange of strengthening air side is the major issue of fin-tube type heat exchanger augmentation of heat transfer, and is the core of fin-tube type heat exchanger research for the research of fin.Improve the shape of fin, promote that the turbulent flow of fluid is to improve a kind of effective measures of air side heat exchange effect.Corrugated fin is the high-effect fin that a kind of heat-transfer effect is better than plain fin, though and the uniform corrugated fin heat-transfer effect in common inclination angle is better than plain fin, heat exchange pressure is also big than plain fin, but because its inclination angle is even, the disturbance that air-flow is subjected to is also more even, and then heat-transfer effect is limited, and exploitation heat exchange amount fin form big, that the pressure loss is few is vast producer and designer's pursuit.
Summary of the invention
The utility model overcomes the corrugated fin that above-mentioned the deficiencies in the prior art provide the fin-tube type heat exchanger that a kind of processing and manufacturing is simple, heat transfer property is good inclination angle increases progressively gradually.
The technical solution of the utility model is achieved in that a kind of corrugated fin of fin-tube type heat exchanger, this corrugated fin tightly is enclosed within the outside of side-by-side heat exchanger tube, described corrugated fin is broken line shape, and the angle of broken line shape corrugated fin and horizontal plane is along the direction to heat exchanger inside increases progressively gradually from air intlet.
Further, offer some pores that hold heat exchanger tube on the described corrugated fin.Further, the diameter of described pore is identical with the heat exchanger tube external diameter, the pore cross section be shaped as circle or ellipse.
Further, described corrugated fin is many rows, arranges corrugated fin more and is arranged in parallel, and two adjacent wave corrugated fin spacings in the same vertical plane are identical.
The good effect that the technical solution of the utility model produces is as follows: because the ripple inclination angle of corrugated fin is cumulative, the disturbance that air-flow is subjected to strengthens gradually along with the cumulative of inclination angle, the turbulence intensity of air-flow and augmentation of heat transfer effect be cumulative and cumulative along with the inclination angle also, the heat exchange degree is violent than inclination angle homogeneous wave corrugated fin, the augmentation of heat transfer performance of the cumulative corrugated fin in inclination angle has obtained giving full play to, the augmentation of heat transfer function admirable.The cumulative corrugated fin in inclination angle is compared average heat transfer coefficient and has been improved 14.4%~51.7% approximately with plain fin, improved 3.7%~12.4% approximately than the average heat transfer coefficient of inclination angle homogeneous wave corrugated fin.Under the identical situation of the heat exchange amount of unit pressure drop, the air intlet speed that the cumulative corrugated fin in inclination angle needs has reduced by 26.9%~47.8% than plain fin, has lowered 14.1%~17.1% than inclination angle homogeneous wave corrugated fin.
Description of drawings
Fig. 1 is the perspective view of the fin-tube type heat exchanger of the cumulative corrugated fin in the utility model inclination angle.
Fig. 2 is the plan structure schematic diagram of the fin-tube type heat exchanger of the cumulative corrugated fin in the utility model inclination angle.
Fig. 3 is the main TV structure schematic diagram of the fin-tube type heat exchanger of the cumulative corrugated fin in the utility model inclination angle.
Be labeled as among the figure: 1, corrugated fin; 2, heat exchanger tube.
The specific embodiment
Below in conjunction with specific embodiment and description of drawings the utility model is further described.
As shown in Figure 1, 2, 3, a kind of corrugated fin 1 of fin-tube type heat exchanger offers the pore that holds heat exchanger tube on the described corrugated fin, the diameter of this pore is identical with the external diameter of heat exchanger tube, the shape of this pore cross section is identical with the shape of cross section of heat exchanger tube, is circle; Corrugated fin tightly is enclosed within the outside of two row's formula heat exchanger tubes 2, and heat exchanger tube inside is cold-producing medium, and described corrugated fin is that some horizontally-arrangeds are arranged in parallel, and the shape of the corrugated fin of each horizontally-arranged and arrangement architecture are all identical.Described corrugated fin is broken line shape, the angle of broken line shape corrugated fin and horizontal plane is along the direction to heat exchanger inside increases progressively gradually from air intlet, namely be that ripple inclination angle along the moving direction wave corrugated fin of Fig. 3 hollow air-flow increases progressively gradually, the corrugated fin of arbitrary horizontally-arranged and the angle of horizontal plane are followed successively by 0 °, 12.5 °, 18.4 ° to 23.8 °, as α among the figure=12.5 °, β=18.4 °, γ=23.8 °; In same face perpendicular to corrugated fin, corrugated fin 1 spacing of any two adjacent horizontally-arrangeds equates.
The operation principle of the fin-tube type heat exchanger of the cumulative corrugated fin in above-mentioned inclination angle is as follows: cold-producing medium (high temperature) passes to heat exchanger tube outer inclination angle cumulative corrugated fin with heat in heat conducting mode by heat exchanger tube, the cumulative corrugated fin in inclination angle with heat with the mode of convection current pass to its surface cold air (normal temperature), go into new cold air by blow off not and reach the enhancing cooling purpose.Air-flow is during by the cumulative corrugated fin in inclination angle, and the flow-disturbing degree that air-flow is subjected to strengthens gradually along with the cumulative of inclination angle, makes the flow direction of air-flow constantly change and promote turbulent flow, raising heat transfer efficiency, enhanced heat exchange.

Claims (4)

1. the corrugated fin of a fin-tube type heat exchanger, this corrugated fin tightly is enclosed within the outside of side-by-side heat exchanger tube, it is characterized in that: described corrugated fin is broken line shape, and the angle of broken line shape corrugated fin and horizontal plane is along the direction to heat exchanger inside increases progressively gradually from air intlet.
2. the corrugated fin of a kind of fin-tube type heat exchanger according to claim 1 is characterized in that: offer some pores that hold heat exchanger tube on the described corrugated fin.
3. the corrugated fin of a kind of fin-tube type heat exchanger according to claim 2, it is characterized in that: the diameter of described pore is identical with the heat exchanger tube external diameter, the pore cross section be shaped as circle or ellipse.
4. the corrugated fin of a kind of fin-tube type heat exchanger according to claim 1 is characterized in that: described corrugated fin is arranged corrugated fin to be arranged in parallel for many rows more, and two adjacent wave corrugated fin spacings in the same vertical plane are identical.
CN 201320151690 2013-03-29 2013-03-29 Corrugated fin of finned tube heat exchanger Expired - Fee Related CN203231680U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320151690 CN203231680U (en) 2013-03-29 2013-03-29 Corrugated fin of finned tube heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320151690 CN203231680U (en) 2013-03-29 2013-03-29 Corrugated fin of finned tube heat exchanger

Publications (1)

Publication Number Publication Date
CN203231680U true CN203231680U (en) 2013-10-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320151690 Expired - Fee Related CN203231680U (en) 2013-03-29 2013-03-29 Corrugated fin of finned tube heat exchanger

Country Status (1)

Country Link
CN (1) CN203231680U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089515A (en) * 2014-08-01 2014-10-08 兰州交通大学 Streamline equal-amplitude fold-line-shaped corrugated fin for round tube fin type heat exchanger
CN104110990A (en) * 2014-08-01 2014-10-22 兰州交通大学 Streamline variable-amplitude wavy fin for round tube fin heat exchanger
CN104110988A (en) * 2014-08-01 2014-10-22 兰州交通大学 Streamline variable-amplitude sine/cosine-shaped wavy fin for round tube fin heat exchanger
CN104132573A (en) * 2014-08-01 2014-11-05 兰州交通大学 Streamlined equivalent amplitude broken-line corrugated fin of oval tube fin heat exchanger
CN104142085A (en) * 2014-08-01 2014-11-12 兰州交通大学 Streamline type variable wave amplitude parabolic corrugated fin of circular tube fin type heat exchanger
CN104949561A (en) * 2015-06-10 2015-09-30 海信(山东)空调有限公司 Fin applied to heat exchanger
CN105387625A (en) * 2015-12-22 2016-03-09 何达江 Heat collection device of gas water heater
CN109798798A (en) * 2018-12-28 2019-05-24 贵州省六盘水双元铝业有限责任公司 The efficient hot swapping of turbulent heat transfer

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089515A (en) * 2014-08-01 2014-10-08 兰州交通大学 Streamline equal-amplitude fold-line-shaped corrugated fin for round tube fin type heat exchanger
CN104110990A (en) * 2014-08-01 2014-10-22 兰州交通大学 Streamline variable-amplitude wavy fin for round tube fin heat exchanger
CN104110988A (en) * 2014-08-01 2014-10-22 兰州交通大学 Streamline variable-amplitude sine/cosine-shaped wavy fin for round tube fin heat exchanger
CN104132573A (en) * 2014-08-01 2014-11-05 兰州交通大学 Streamlined equivalent amplitude broken-line corrugated fin of oval tube fin heat exchanger
CN104142085A (en) * 2014-08-01 2014-11-12 兰州交通大学 Streamline type variable wave amplitude parabolic corrugated fin of circular tube fin type heat exchanger
CN104110988B (en) * 2014-08-01 2016-04-06 兰州交通大学 The streamlined change wave amplitude of circular pipe pipe fin heat exchanger just/cosine-shaped corrugated fin
CN104110990B (en) * 2014-08-01 2016-04-06 兰州交通大学 Circular pipe pipe fin heat exchanger streamlined change wave amplitude corrugated fin
CN104949561A (en) * 2015-06-10 2015-09-30 海信(山东)空调有限公司 Fin applied to heat exchanger
CN105387625A (en) * 2015-12-22 2016-03-09 何达江 Heat collection device of gas water heater
CN109798798A (en) * 2018-12-28 2019-05-24 贵州省六盘水双元铝业有限责任公司 The efficient hot swapping of turbulent heat transfer

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131009

Termination date: 20170329

CF01 Termination of patent right due to non-payment of annual fee