CN101482377A - Combined pipe fins reinforced heat exchange surface structure - Google Patents
Combined pipe fins reinforced heat exchange surface structure Download PDFInfo
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- CN101482377A CN101482377A CNA200910020823XA CN200910020823A CN101482377A CN 101482377 A CN101482377 A CN 101482377A CN A200910020823X A CNA200910020823X A CN A200910020823XA CN 200910020823 A CN200910020823 A CN 200910020823A CN 101482377 A CN101482377 A CN 101482377A
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- heat exchange
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- heat exchanger
- exchange surface
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Abstract
The invention relates to a combined type pipe fins reinforced heat exchange surface structure, which comprises a heat exchange tube and a plurality of groups of substrates disposed on the heat exchange tube; a reinforced heat exchange surface is consisted in the manner of: disposing a pair of longitudinal vortex generators on the side of the upstream heat exchange tube relative to the inflowing direction on the substrate, while forming shutter shaped seams on the downstream part distributed symmetrically about the symmetric line of the longitudinal vortex generator pair. when fluid passes, the vortex generator increases the flowing speed gradient of the fluid flowing near the heat exchange tube wall, and the vortex formed at the same time increases disturbance; the downstream shutter destroys the boundary layer again to improve the cooperating degree of the fluid speed and the temperature gradient, and reinforces the heat exchange. Value simulation shows that: the invention can achieves the heat exchange property of existing fins, even can improve the heat exchange property of the fins greatly with lower pump power, more importantly, the invention fully utilizes material and is easily to be manufactured.
Description
Technical field
The present invention relates to a kind of combined pipe fins reinforced heat exchange surface structure, be particularly suitable for being applied to freeze and the evaporimeter of air-conditioning equipment and the condenser fin-tube type heat exchange surface in the gas heater especially.
Background technology
In the evaporimeter and condenser and gas heater that in refrigeration and air-conditioning system, uses, cold-producing medium or heated medium flow in pipe, gas (comprising air, flue gas etc.) flows outside pipe, because the most of thermal resistance in the diabatic process all concentrates on gas side, in order to strengthen heat exchange, just fin is installed,, is reduced the thermal resistance of air side to increase heat exchange area at gas side.In order further to strengthen heat exchange property, numerous scientific research personnel have carried out deeply and extensive studies fin and surperficial accessory structure thereof, research and the patent of strengthening flat fin surface heat exchange have a lot, as the fin that adopts corrugated fin, louvered fin, layout long direction eddy generator etc.Said method and patent have all only utilized a kind of reinforcement technique to design, and promptly open shutter separately or arrange that separately long direction eddy generator constitutes enhanced heat transfer surfaces.
Utilize the measure subject matter of single strengthening surface to be, each enhancements is in enhanced heat exchange, flow resistance increases fast, the pump merit also increases considerably because of structure complicated is generally brought, part-structure also brings processing technology complicated, has problems such as easy dust stratification, cleaning inconvenience during actual the use.The basic thought of fin reinforcing heat exchange is " reducing boundary layer thickness; increase the fluid flow disturbance ", for the wing fin, its fin efficiency of difform fin surface is also inequality, therefore can carry out the analysis integrated enhanced heat exchange effect of utilizing complementary its inferior position of its advantage then can strengthen single reinforced element once more to different strengthening surfaces.
Summary of the invention
The object of the present invention is to provide and a kind ofly can make full use of fin material, improve the gas finned tube exchanger heat transfer, reduce resistance, reduce to freeze and the combined pipe fins reinforced heat exchange surface structure of evaporimeter, condenser and the gas heater volume of air-conditioning equipment.
For achieving the above object, the technical solution used in the present invention is: comprise heat exchanger tube and be sleeved on some groups of substrates on the heat exchanger tube, to go out triangle winglet eddy generator along the side symmetry of heat exchanger tube right in the upstream of flow path direction since on the substrate, on substrate, formed leg-of-mutton through hole, offer shutter with the right line of symmetry symmetry of triangle winglet eddy generator on the substrate in heat exchanger tube proceeds posterolateral downstream, the shutter of inclination links to each other with substrate by leg.
Substrate of the present invention adopts plain fin or adopts the circular arc inlet shape plain film of enhancements; The heat exchanger tube that passes substrate adopts single arrangement.
Position and physical dimension size that the present invention determines to arrange long direction eddy generator and the relative heat exchanger tube of shutter according to the pipe fin structure, on substrate, go out crack shape bar seam of long direction eddy generator and shutter then, the shutter footing is connected with substrate, finishes the making of heat exchanger again through technologies such as nest plate, expand tube, welding.Utilize numerical simulation to find to adopt the present invention can reach the heat exchange property of existing fin, improved the gas side surface film thermal conductance to a great extent, even the heat exchange property of fin can obtain sizable improvement under littler pump merit condition.The more important thing is that the present invention has made full use of fin material, and technology is easy to simply make.
Description of drawings
Fig. 1 is a kind of structural representation that combination intensifying element of the present invention is implemented;
Fig. 2 is that shutter relative position partial structurtes schematic diagram is opened in upstream arrangement triangle winglet long direction eddy generator of the present invention downstream.
The specific embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
Referring to Fig. 1,2, the present invention includes and adopt the heat exchanger tube 1 that single mode arranges and be sleeved on some groups of substrates 2 on the heat exchanger tube 1, this substrate 2 adopts plain fin or adopts the circular arc inlet shape plain film of enhancements, the upstream of flow path direction dashes (punching) along the side symmetry of heat exchanger tube 1 and goes out triangle winglet eddy generator to 3 since on the substrate 2, triangle winglet eddy generator 3 by projection has formed leg-of-mutton through hole 4 on substrate 2, with triangle winglet eddy generator 3 line of symmetry symmetry is opened shutter 5 on the substrate 2 of heat exchanger tube 1 proceeds posterolateral (downstream), the shutter 5 of inclination links to each other with substrate 2 by leg 6.
The triangle winglet eddy generator of upstream arrangement has guide effect to 3 convection cells, has improved the velocity gradient of heat exchanging water pipe's tube wall, and the through hole 4 of formation makes that fluid mixes up and down, has reduced fluid flow resistance; The shutter 5 in downstream destroys thermal boundary layer, has postponed the tail region of fluid arrival fin, and downstream area has been played invigoration effect.
Numerical simulation result shows, strengthening surface of the present invention is than document [Zheng Yongxin under the 3.16m/s inlet velocity, Ye Yuanzhang, Yao Kenong, Zhao Hengyi, the Zhong Jia river in Jiangsu Province which flows into the Huangpu River of Shanghai, Pan Zhaokeng, Wang Yongyi. condensed type combustion gas water heater [M]. Chongqing: publishing house of University Of Chongqing, 2008:98.] to adopt towards the coefficient of heat transfer of cylindrical hole strengthening surface and improve 17.93%, pressure drop but has only original 35.1%.When flow velocity was brought up to 6.0m/s if will enter the mouth, pressure drop improved 4.83%, and the coefficient of heat transfer can improve nearly 61.3%.
If get the same pump merit relatively, under identical fin number, capacity of the present invention can increase near half; Under identical capacity, heat transfer area can dwindle near half, so heat exchanger volume reduces, and saves consumptive material.
The enhanced heat transfer fin that uses has louvered fin, slitted fin etc. at present, because the bar seam is denser, processing mold is very complicated, and on the fin surface of the present invention only the downstream open shutter, complexity reduces, and processing mold is also simpler, can be by traditional procedure, the making of heat exchanger is finished in nest plate, expand tube, welding etc.So such heat exchanger processing technology is simple, combination property is good.Reinforced element of the present invention is in addition drawn materials by substrate fully and is made, and does not need extra material, also can not remove substrate material because of making reinforced element, make full use of raw material, meets the trend of development in science and technology.
Claims (3)
1, a kind of combined pipe fins reinforced heat exchange surface structure, comprise heat exchanger tube (1) and be sleeved on some groups of substrates (2) on the heat exchanger tube (1), it is characterized in that: triangle winglet eddy generator is gone out to (3) along the side symmetry of heat exchanger tube (1) in the upstream of flow path direction since substrate (2) is gone up, on substrate (2), formed leg-of-mutton through hole (4), the substrate (2) in heat exchanger tube (1) proceeds posterolateral downstream is gone up with triangle winglet eddy generator the line of symmetry symmetry of (3) is offered shutter (5), and the shutter of inclination (5) links to each other with substrate (2) by leg (6).
2, combined pipe fins reinforced heat exchange surface structure according to claim 1 is characterized in that: said substrate (2) adopts plain fin or adopts the circular arc inlet shape plain film of enhancements.
3, combined pipe fins reinforced heat exchange surface structure according to claim 1 is characterized in that: the said heat exchanger tube (1) that passes substrate (2) adopts single arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910020823XA CN101482377A (en) | 2009-01-07 | 2009-01-07 | Combined pipe fins reinforced heat exchange surface structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910020823XA CN101482377A (en) | 2009-01-07 | 2009-01-07 | Combined pipe fins reinforced heat exchange surface structure |
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| Publication Number | Publication Date |
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| CN101482377A true CN101482377A (en) | 2009-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA200910020823XA Pending CN101482377A (en) | 2009-01-07 | 2009-01-07 | Combined pipe fins reinforced heat exchange surface structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444244A (en) * | 2011-09-28 | 2012-05-09 | 上海应用技术学院 | Sound-elimination canopy plate |
| CN103743107A (en) * | 2014-01-06 | 2014-04-23 | 无锡市林志热交换器有限公司 | Efficient heat absorption fin for fuel gas wall hanging stove |
| CN104315912A (en) * | 2014-10-15 | 2015-01-28 | 珠海格力电器股份有限公司 | Shutter type radiating fin and heat exchanger |
| CN105783574A (en) * | 2016-04-28 | 2016-07-20 | 沈阳化工大学 | Streamline longitudinal vortex generator strengthening heat transfer |
| CN104315912B (en) * | 2014-10-15 | 2017-01-04 | 珠海格力电器股份有限公司 | Shutter type radiating fin and heat exchanger |
| CN110274504A (en) * | 2018-03-14 | 2019-09-24 | 瑞美制造公司 | Heat exchanger fin |
| WO2020042451A1 (en) * | 2018-08-30 | 2020-03-05 | 珠海格力电器股份有限公司 | Heat exchange pipe and air conditioner |
| CN112066776A (en) * | 2020-08-04 | 2020-12-11 | 西安交通大学 | Bionic slotted corrugated fin for air-conditioning heat exchanger |
-
2009
- 2009-01-07 CN CNA200910020823XA patent/CN101482377A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444244A (en) * | 2011-09-28 | 2012-05-09 | 上海应用技术学院 | Sound-elimination canopy plate |
| CN103743107A (en) * | 2014-01-06 | 2014-04-23 | 无锡市林志热交换器有限公司 | Efficient heat absorption fin for fuel gas wall hanging stove |
| CN104315912A (en) * | 2014-10-15 | 2015-01-28 | 珠海格力电器股份有限公司 | Shutter type radiating fin and heat exchanger |
| CN104315912B (en) * | 2014-10-15 | 2017-01-04 | 珠海格力电器股份有限公司 | Shutter type radiating fin and heat exchanger |
| CN105783574A (en) * | 2016-04-28 | 2016-07-20 | 沈阳化工大学 | Streamline longitudinal vortex generator strengthening heat transfer |
| CN110274504A (en) * | 2018-03-14 | 2019-09-24 | 瑞美制造公司 | Heat exchanger fin |
| CN110274504B (en) * | 2018-03-14 | 2022-09-02 | 瑞美制造公司 | Heat exchanger fin |
| WO2020042451A1 (en) * | 2018-08-30 | 2020-03-05 | 珠海格力电器股份有限公司 | Heat exchange pipe and air conditioner |
| CN112066776A (en) * | 2020-08-04 | 2020-12-11 | 西安交通大学 | Bionic slotted corrugated fin for air-conditioning heat exchanger |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090715 |