CN101334245A - Tube fin type heat exchanger of side positioned longitudinal whorl generator - Google Patents
Tube fin type heat exchanger of side positioned longitudinal whorl generator Download PDFInfo
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- CN101334245A CN101334245A CNA200810150546XA CN200810150546A CN101334245A CN 101334245 A CN101334245 A CN 101334245A CN A200810150546X A CNA200810150546X A CN A200810150546XA CN 200810150546 A CN200810150546 A CN 200810150546A CN 101334245 A CN101334245 A CN 101334245A
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Abstract
The invention relates to a fin tube type heat exchanger of a side positioned longitudinal vortex generator. The fin tube type heat exchanger is provided with a plurality of groups of straight substrates which are mutually arranged at intervals of a certain spacing and mutually parallel and a plurality of heat exchanging tubes vertically penetrated through the straight substrates, and a triangle winglet shaped longitudinal vortex generator is arranged at the two sides of each heat exchanging tube. In the heat exchanger of the invention, a plurality of triangle winglets are arranged at the two sides of the heat exchanging tubes, to prompt that the longitudinal vortex is formed at the air side, and simultaneously, a speed passage is formed among the heat exchanging tube wall, the triangle winglets and the fin, to ensure that the boundary layer separation point at the position of the heat exchanging tubes wall is delayed, the wake zone at the back of the heat exchanging tubes is diminished, the boundary layer is attenuated, and the mixture of cool and hot fluids is improved, thereby the heat exchange is greatly enhanced and the resistance force is slightly increased. The fin tube type heat exchanger has the advantages that heat transfer efficiency is high, the structure is compact, the floor area occupation is small, thus to be suitable for large-scale mechanized production.
Description
Technical field
The present invention relates to a kind of fin-tube type heat exchanger, particularly a kind of fin-tube type heat exchanger that is applied to the side positioned longitudinal whorl generator of field of heating ventilation air conditioning.
Background technology
Fin-tube type heat exchanger is the common a kind of heat transmission equipment of HVAC industry.In such heat exchanger, liquid medium is mobile in pipe, and air is mobile outside pipe, because the thermophysical property of air itself makes the coefficient of heat transfer of managing the outside (air side) well below the coefficient of heat transfer of managing inboard (hydraulic fluid side).Therefore, strengthening the air side heat exchange is the key that improves the heat exchanger combination property.In order to strengthen the air side heat exchange, common major measure is the various enhanced heat exchange fins of design, as corrugated fin, slitted fin, louvered fin.Chinese patent 96114435.1 discloses a kind of finned heat exchanger, and the fin surface between adjacent heat exchanger tube is set up a plurality of rising portions (cracking) thereby strengthened the air side heat exchange; Chinese patent 96113216.7 is provided with many row's battens at fin surface, and batten comprises the single bridge-type batten and the trapezoidal louvered slats of rectangle; United States Patent (USP) 6585037 discloses a kind of slitted fin heat exchanger, and this is invented on the fin between adjacent heat exchanger tube, evenly arranges unidirectional cracking along flow direction; United States Patent (USP) 5722485 has provided a kind of louvered fin heat exchanger, offers several groups of fins with identical louver angle on fin.
The measure of above-mentioned several reinforcement fins all is to flow by the main flow that changes air side to realize the purpose that heat exchange is strengthened, and when heat exchange was strengthened, its resistance also increased greatly, and this means that also its pump merit consumption increases greatly.Along with improving constantly of energy-conservation requirement, be necessary to design the heat exchange element of efficient low-resistance, thereby improve the performance of fin, when being implemented in the bigger enhancing of heat exchange, resistance increases less.
Summary of the invention
The object of the present invention is to provide a kind of heat exchange of the fin heat exchanger of enhanced tube greatly air side, and its resistance increase is less, reduce heat exchanger volume simultaneously, saved material, and be suitable for the fin-tube type heat exchanger of the side positioned longitudinal whorl generator of large-scale production.
For achieving the above object, the technical method that the present invention adopts is: comprise parallel each other and phase some groups of straight substrates across a certain distance, and the heat exchanger tube that vertically passes straight substrate, all symmetry is dashed the triangle winglet is arranged on the fin of the both sides of every heat exchanger tube, and the triangle winglet has constituted long direction eddy generator.
The heat exchanger tube that vertically passes straight substrate of the present invention is two row or multi-row, and arrangement is in-line arrangement or fork row; The ratio of the length l of triangle winglet and height h is 1～4, its height h and spacing of fin F
pRatio be 0.5～1.0; It is 10 °～50 ° that triangle winglet and air-flow come flow path direction angle of attack β; Vertical tube pitch S of heat exchanger tube
2Greater than the transverse pipe interval S
1
The present invention has the following advantages and beneficial effect: heat exchanger of the present invention heat exchanger tube both sides on straight substrate are provided with the long direction eddy generator of triangle winglet, make vertical whirlpool and spurting stream form.On the one hand, when fluid is flowed through the triangle winglet, pressure reduction impels secondary stream to form before and after it, thereby formed the anticlockwise vertical whirlpool vertical in the downstream of dalta wing with main flow direction, this fluidal texture has strengthened flow disturbance, attenuate the fluid boundary layer of fin surface, strengthened the concertedness of temperature and velocity field, thereby strengthened heat exchange.On the other hand, because the triangle winglet is arranged at heat exchanger tube one side, between heat exchange tube wall, dalta wing, fin, formed an accelerated passage, when fluid is flowed through, air quickens to flow into heat exchanger tube tail district under the guiding of this passage, thereby makes the boundary layer separation point at heat exchange tube wall place postpone, and has reduced the wake zone behind the heat exchanger tube simultaneously, this has not only strengthened the unfavorable district of the heat exchange behind the heat exchanger tube, has reduced the body resistance that heat exchanger tube causes because fluid is flowed through simultaneously.Therefore, the fin-tube type heat exchanger of side triangle winglet long direction eddy generator of the present invention has good heat exchange and resistance combination property, than the plain fin heat exchange of heat pipe, after adopting this measure, under the situation that heat exchange is strengthened greatly, its resistance increases less, is a kind of heat exchanger of efficient low-resistance.The present invention is particularly suitable for the lower occasion of air side flow velocity.
Description of drawings
Fig. 1 is a heat exchanger structure schematic diagram of the present invention;
Fig. 2 (a) is side dalta wing fin (in-line tube bank) plane;
Fig. 2 (b) is side dalta wing fin (staggered tubes bundle) plane;
Fig. 3 is the structural representation of side triangle winglet of the present invention;
Fig. 4 is the side view of side triangle winglet of the present invention;
Fig. 5 is the moving structure chart of longitudinal turbulence;
Fig. 6 (a) is a cross section speed vector figure (in-line tube bank) in the plain fin heat exchange of heat pipe;
Fig. 6 (b) is the interior cross section speed vector figure (in-line tube bank) of the fin-tube type heat exchanger of side positioned longitudinal whorl generator;
Fig. 6 (c) is a cross section speed vector figure (staggered tubes bundle) in the plain fin heat exchange of heat pipe;
Fig. 6 (d) is the interior cross section speed vector figure (staggered tubes bundle) of the fin-tube type heat exchanger of side positioned longitudinal whorl generator.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Referring to Fig. 1, the present invention includes parallel each other and F across a certain distance mutually
pSome groups of straight substrates [1], and the heat exchanger tube [2] that vertically passes the two or more rows of straight substrate [1], all symmetry is towards there being triangle winglet [3] in the both sides of every heat exchanger tube [2], and triangle winglet [3] has constituted long direction eddy generator, vertical tube pitch S of heat exchanger tube
2Greater than the transverse pipe interval S
1
During work, liquid medium is walked in the pipe; Air dielectric is walked outside the pipe, by the heat conduction of heat exchanger tube [2], straight substrate [1], triangle winglet [3] and the heat exchange of convection current realization two media.Because the effect of triangle winglet [3] long direction eddy generator makes air side form spurting and flows and the moving structure of longitudinal turbulence, thus enhanced tube outside heat exchange, and resistance increases less.
Fig. 2 (a) and Fig. 2 (b) are respectively the plane of heat exchanger tube [2] in-line arrangement and fork row's side triangle winglet fin, and triangle winglet [3] is arranged at the both sides of every heat exchanger tube [2], is directly gone out by straight substrate [1].
Referring to the side triangle winglet structural representation of Fig. 3, it is 10 °～50 ° that described triangle winglet [3] comes the angle of attack β of flow path direction with air-flow.
Referring to the side view of the side triangle winglet of Fig. 4, the ratio of the length l of described triangle winglet [3] and height h is 1～4, its height h and spacing of fin F
pRatio be 0.5～1.0.
Fig. 5 is the moving structure chart of longitudinal turbulence, described triangle winglet [3] has formed the fluidal texture in vertical whirlpool in its downstream under the differential pressure action of front and back, make fluid directly wash away fin surface, attenuate the boundary layer, increase the mixing of cold fluid and hot fluid, thereby strengthened the air side heat exchange.
Shown in Fig. 6 (a) and (b), (c), (d), after heat exchanger tube [2] both sides are provided with triangle winglet [3], no matter be that heat exchanger tube [2] is in-line arrangement or pitches to arrange and put, all between triangle winglet [3], heat exchanger tube [2] tube wall face and plain fin [1], formed mobile accelerating region, the guiding fluid enters the unfavorable district of heat exchange of heat exchanger tube back, has postponed the separation in boundary layer, makes that the wake zone reduces behind the pipe, thereby reduced the body resistance that air is plunderred pipe outward, strengthened the air side heat exchange simultaneously.
Claims (5)
1, a kind of fin-tube type heat exchanger of side positioned longitudinal whorl generator, comprise parallel each other and phase some groups of straight substrates [1] across a certain distance, and the heat exchanger tube [2] that vertically passes straight substrate [1], it is characterized in that: all symmetry is towards there being triangle winglet [3] in the both sides of every heat exchanger tube [2], and triangle winglet [3] has constituted long direction eddy generator.
2, the fin-tube type heat exchanger of side positioned longitudinal whorl generator according to claim 1 is characterized in that: vertical tube pitch S of heat exchanger tube [2]
2Greater than the transverse pipe interval S
1
3, the fin-tube type heat exchanger of side positioned longitudinal whorl generator according to claim 1 is characterized in that: the said heat exchanger tube [2] that vertically passes straight substrate [1] is two row or multi-row, and the arrangement of heat exchanger tube [2] is in-line arrangement or fork row.
4, the fin-tube type heat exchanger of side positioned longitudinal whorl generator according to claim 1 is characterized in that: the ratio of the length l of said triangle winglet [3] and height h is 1～4, and its height h is 0.5～1.0 with the ratio of spacing of fin Fp.
5, the fin-tube type heat exchanger of side positioned longitudinal whorl generator according to claim 1 is characterized in that: it is 10 °～50 ° that said triangle winglet [3] comes flow path direction angle of attack β with air-flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810150546XA CN101334245A (en) | 2008-08-05 | 2008-08-05 | Tube fin type heat exchanger of side positioned longitudinal whorl generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810150546XA CN101334245A (en) | 2008-08-05 | 2008-08-05 | Tube fin type heat exchanger of side positioned longitudinal whorl generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101334245A true CN101334245A (en) | 2008-12-31 |
Family
ID=40197011
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810150546XA Pending CN101334245A (en) | 2008-08-05 | 2008-08-05 | Tube fin type heat exchanger of side positioned longitudinal whorl generator |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109282A (en) * | 2011-03-25 | 2011-06-29 | 兰州交通大学 | Finned flat tube heat exchanger with four plane vortex generators on each flat tube |
| CN102109283A (en) * | 2011-03-25 | 2011-06-29 | 兰州交通大学 | Vortex generator type flat finned tube exchanger with six planes on each flat tube |
| CN102121798A (en) * | 2011-03-25 | 2011-07-13 | 兰州交通大学 | Flat tube-fin heat exchanger with double-side vortex generator |
| CN102135388A (en) * | 2011-03-25 | 2011-07-27 | 兰州交通大学 | Triangular curved vortex generator type circular tube fin heat exchanger |
| CN102141354A (en) * | 2011-03-25 | 2011-08-03 | 兰州交通大学 | Cambered vortex generator type round tube finned heat exchanger |
| CN102141353A (en) * | 2011-03-25 | 2011-08-03 | 兰州交通大学 | Combined type circular pipe pipe-fin heat exchanger |
| CN102162704A (en) * | 2011-03-08 | 2011-08-24 | 西安交通大学 | Radiation-type triangular winglets pipe fin reinforced heat exchange surface structure |
| CN102200405A (en) * | 2011-03-25 | 2011-09-28 | 兰州交通大学 | Combined triangular curved vortex generator type circular tube fin heat exchanger |
| CN102297624A (en) * | 2011-07-14 | 2011-12-28 | 许昌怡家电器有限公司 | Reinforced heat exchange fin |
| CN102326048A (en) * | 2009-02-23 | 2012-01-18 | 特灵国际有限公司 | Heat exchanger |
| CN103528417A (en) * | 2013-08-21 | 2014-01-22 | 北京首航艾启威节能技术股份有限公司 | Tubular fin type finned tube exchanger |
| CN104006680A (en) * | 2014-05-30 | 2014-08-27 | 汤玉冰 | Heat exchanger of vapor generator and vapor generator |
| CN104265384A (en) * | 2014-08-12 | 2015-01-07 | 东南大学 | Organic Rankine cycle device by adopting longitudinal vortex to overcome non-azeotropic working medium heat transfer deterioration |
| CN106017194A (en) * | 2016-06-09 | 2016-10-12 | 沈阳化工大学 | Longitudinal vortex generator and heat exchanger provided with longitudinal vortex generators |
| CN110501377A (en) * | 2019-09-21 | 2019-11-26 | 张家港市恒强冷却设备有限公司 | The check method of heat exchange fin area in air heat exchanger |
| CN110906778A (en) * | 2019-11-04 | 2020-03-24 | 宁波奥克斯电气股份有限公司 | Fin of heat exchanger, heat exchanger and air conditioner |
| CN111174565A (en) * | 2018-11-09 | 2020-05-19 | Lat有限公司 | High-efficiency waste heat recovery device of hot air oven |
| CN112048243A (en) * | 2020-08-29 | 2020-12-08 | 上海符立制冷设备有限公司 | Super-hydrophobic coating agent, heat exchanger and heat exchanger surface treatment method |
| CN112066776A (en) * | 2020-08-04 | 2020-12-11 | 西安交通大学 | Bionic slotted corrugated fin for air-conditioning heat exchanger |
| CN113758358A (en) * | 2020-06-01 | 2021-12-07 | 广东美的暖通设备有限公司 | Heat exchanger and air conditioner |
| CN114267461A (en) * | 2021-12-24 | 2022-04-01 | 西安交通大学 | Plate-shaped fuel assembly enhanced heat exchange device |
| CN114337098A (en) * | 2021-11-22 | 2022-04-12 | 中车永济电机有限公司 | Motor enhanced heat dissipation structure |
-
2008
- 2008-08-05 CN CNA200810150546XA patent/CN101334245A/en active Pending
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102326048A (en) * | 2009-02-23 | 2012-01-18 | 特灵国际有限公司 | Heat exchanger |
| CN102162704A (en) * | 2011-03-08 | 2011-08-24 | 西安交通大学 | Radiation-type triangular winglets pipe fin reinforced heat exchange surface structure |
| CN102162704B (en) * | 2011-03-08 | 2012-07-25 | 西安交通大学 | Radiation-type triangular winglets pipe fin reinforced heat exchange surface structure |
| CN102121798A (en) * | 2011-03-25 | 2011-07-13 | 兰州交通大学 | Flat tube-fin heat exchanger with double-side vortex generator |
| CN102135388A (en) * | 2011-03-25 | 2011-07-27 | 兰州交通大学 | Triangular curved vortex generator type circular tube fin heat exchanger |
| CN102141354A (en) * | 2011-03-25 | 2011-08-03 | 兰州交通大学 | Cambered vortex generator type round tube finned heat exchanger |
| CN102141353A (en) * | 2011-03-25 | 2011-08-03 | 兰州交通大学 | Combined type circular pipe pipe-fin heat exchanger |
| CN102109282A (en) * | 2011-03-25 | 2011-06-29 | 兰州交通大学 | Finned flat tube heat exchanger with four plane vortex generators on each flat tube |
| CN102200405A (en) * | 2011-03-25 | 2011-09-28 | 兰州交通大学 | Combined triangular curved vortex generator type circular tube fin heat exchanger |
| CN102109283A (en) * | 2011-03-25 | 2011-06-29 | 兰州交通大学 | Vortex generator type flat finned tube exchanger with six planes on each flat tube |
| CN102141353B (en) * | 2011-03-25 | 2012-08-15 | 兰州交通大学 | Combined type circular pipe pipe-fin heat exchanger |
| CN102200405B (en) * | 2011-03-25 | 2012-12-05 | 兰州交通大学 | Combined triangular curved vortex generator type circular tube fin heat exchanger |
| CN102141354B (en) * | 2011-03-25 | 2013-04-24 | 兰州交通大学 | Cambered vortex generator type round tube finned heat exchanger |
| CN102297624A (en) * | 2011-07-14 | 2011-12-28 | 许昌怡家电器有限公司 | Reinforced heat exchange fin |
| CN103528417A (en) * | 2013-08-21 | 2014-01-22 | 北京首航艾启威节能技术股份有限公司 | Tubular fin type finned tube exchanger |
| CN104006680B (en) * | 2014-05-30 | 2015-11-04 | 汤玉冰 | A kind of heat exchanger of steam generator and steam generator |
| CN104006680A (en) * | 2014-05-30 | 2014-08-27 | 汤玉冰 | Heat exchanger of vapor generator and vapor generator |
| CN104265384A (en) * | 2014-08-12 | 2015-01-07 | 东南大学 | Organic Rankine cycle device by adopting longitudinal vortex to overcome non-azeotropic working medium heat transfer deterioration |
| CN106017194A (en) * | 2016-06-09 | 2016-10-12 | 沈阳化工大学 | Longitudinal vortex generator and heat exchanger provided with longitudinal vortex generators |
| CN106017194B (en) * | 2016-06-09 | 2018-04-24 | 沈阳化工大学 | A kind of long direction eddy generator and the heat exchanger with long direction eddy generator |
| CN111174565A (en) * | 2018-11-09 | 2020-05-19 | Lat有限公司 | High-efficiency waste heat recovery device of hot air oven |
| CN110501377B (en) * | 2019-09-21 | 2021-09-17 | 张家港市恒强冷却设备有限公司 | Checking method for heat exchange fin area in air heat exchanger |
| CN110501377A (en) * | 2019-09-21 | 2019-11-26 | 张家港市恒强冷却设备有限公司 | The check method of heat exchange fin area in air heat exchanger |
| CN110906778A (en) * | 2019-11-04 | 2020-03-24 | 宁波奥克斯电气股份有限公司 | Fin of heat exchanger, heat exchanger and air conditioner |
| CN113758358A (en) * | 2020-06-01 | 2021-12-07 | 广东美的暖通设备有限公司 | Heat exchanger 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 |
| CN112048243A (en) * | 2020-08-29 | 2020-12-08 | 上海符立制冷设备有限公司 | Super-hydrophobic coating agent, heat exchanger and heat exchanger surface treatment method |
| CN114337098A (en) * | 2021-11-22 | 2022-04-12 | 中车永济电机有限公司 | Motor enhanced heat dissipation structure |
| CN114267461A (en) * | 2021-12-24 | 2022-04-01 | 西安交通大学 | Plate-shaped fuel assembly enhanced heat exchange device |
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Open date: 20081231 |