CN104006693A - Opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element - Google Patents
Opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element Download PDFInfo
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- CN104006693A CN104006693A CN201410187560.2A CN201410187560A CN104006693A CN 104006693 A CN104006693 A CN 104006693A CN 201410187560 A CN201410187560 A CN 201410187560A CN 104006693 A CN104006693 A CN 104006693A
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- fillet
- heat
- thermal resistance
- finned tube
- heat transfer
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Abstract
The invention discloses an opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element and belongs to the technical field of heat exchanging. The opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element comprises radiating fins and a rectangular heat transmission flat tube. The radiating fins are oblique opposite-rounded-corner ripple breaking fins, the fins and the heat transmission flat tube are integrally formed, and welding is of no need. Contact heat resistance is of no need, heat transmission efficiency is high, a manufacturing technology is simple, the structure is compact, size is small, anti-shocking capacity is high, and accordingly the opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element can be widely used in heat exchangers of various products such as an air conditioner, cooling equipment and vehicles.
Description
Technical field
The present invention relates to a kind of be applied to all kinds of heat exchangers to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube, belong to technical field of heat exchange.
Background technology
The heat transfer element using on the heat exchangers such as existing air-conditioner, vehicle, refrigeration plant is generally made up of copper pipe, aluminum pipe or micro-channel tubes and aluminium fin, the heat-transfer pipe of heat transfer element and radiating fin are split-type structural, conventionally adopt the method for expand tube or soldering to connect, manufacture and comparatively complexity of processing technology.Between its fin and heat-transfer pipe, thermal contact resistance is larger; And vibration resistance is poor, some heat exchanger (as engineering machinery) work under bad environment, after heat transfer element operation certain hour, the junction of radiating fin and heat-transfer pipe tends to occur that part gets loose, even produce fracture, so also can strengthen thermal contact resistance, cause its heat transfer property significantly to decline; Meanwhile, due to China's copper scarcity of resources, surging for the manufacture of the copper material price of heat-transfer pipe in recent years, greatly increase the production cost of heat exchanger.For fear of above defect, the present invention has designed one to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube, and this heat transfer element is aluminium matter monolithic construction, and between radiating fin and heat-transfer pipe, contactless thermal resistance, has improved heat transfer property; That tilts has cut off the thermal boundary layer of air side hot fluid to the disconnected wing fin of fillet ripplet, has strengthened the perturbation of gas side to air simultaneously, has improved the heat transfer efficiency of gas side than heat transfer component of sharp-peak round-valley type corrugated fin-pipe; The all-in-one-piece effect disconnected wing fin of fillet ripplet to reinforcement in rectangle heat-transfer pipe both sides, than the further withstand voltage properties that strengthens heat-transfer pipe of heat transfer component of sharp-peak round-valley type corrugated fin-pipe, meets the requirement of air-condition heat exchanger heat transfer medium operating pressure; Compared with the heat transfer element of tradition string sheet tube-expanding type or welded type Split type structure, the heat transfer property of the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube is improved to 10%-40%; Compared with heat transfer component of sharp-peak round-valley type corrugated fin-pipe, between disconnected wing radiating fin to fillet fillet ripplet shape and heat transfer flat tube, be the angle of inclination of α (0 ° of < α <90 °), simultaneously curved, under the condition of identical heat transfer element height, it is about 2% that the area of dissipation of the radiating fin to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube increases, and heat-transfer capability is further enhanced; Meanwhile, the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube is shaped to technique simple, production efficiency improves, and reduces production costs.
Summary of the invention
The present invention's design the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube is made up of radiating fin and heat-transfer pipe, radiating fin and heat-transfer pipe are aluminium matter monolithic construction, one machine-shaping, radiating fin be tilt to the disconnected wing fin of fillet ripplet, the disconnected wing fin junior unit length of each ripple is S
1, be highly H, there is the fillet ripplet that two radiuses are r; Between two ripplets, spacing is S
2, the fillet that is R by two radiuses seamlessly transits; Radiating fin is positioned at the upper and lower both sides of heat-transfer pipe, and between radiating fin, spacing is S
f, radiating fin thickness is δ, is highly H
p; Heat-transfer pipe is that section thickness is W
1, width is L
1rectangle flat tube, in heat-transfer pipe, be evenly arranged vertically multiple not connected rectangular channels, rectangular channel section thickness is W
2, width is L
2, the spacing between each rectangular channel is L
3.
The present invention design to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube, heat exchanger heat transfer element than the existing split-type structural being connected by expand tube or welding manner with aluminium fin by copper pipe, aluminum pipe or micro-channel tubes is compared with heat transfer component of sharp-peak round-valley type corrugated fin-pipe, has the following advantages:
(1) heat transfer property is significantly improved.This radiating fin and heat-transfer pipe to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube adopts monolithic construction, one machine-shaping, eliminate thermal contact resistance, simultaneously radiating fin be tilt to the disconnected wing fin of fillet ripplet, the thermal boundary layer that can cut off hot fluid, is conducive to heat convection; When fluid skims over radiating fin simultaneously, flow resistance is less, and flow-disturbing is more violent, the performance of heat transfer element is not fully exerted, thereby heat transfer property is good, compared with existing heat transfer element, this can improve 10-40% to the disconnected contactless thermal resistance heat transfer element of the wing formula finned tube Coefficient K of fillet.
(2) between the disconnected wing fin to fillet ripplet and heat transfer flat tube, be the angle of inclination of α (0 ° of < α <90 °), simultaneously curved, under the identical condition of heat transfer element height, compared with heat transfer component of sharp-peak round-valley type corrugated fin-pipe, it is about 2% that the area of dissipation of radiating fin increases, makes the heat-transfer capability of the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube be further enhanced.
(3) because heat transfer property is greatly improved, transmitting under the condition of identical heat, compared with present widely used split type heat exchanger heat transfer element, this volume and weight to the contactless thermal resistance finned tube of fillet oblique fracture formula heat transfer element can reduce 15-39%, save lot of materials, reduce production costs.
(4) radiating fin and heat-transfer pipe are integrated, without welding, also without pickling industry, free from environmental pollution again in having simplified manufacturing process; In the middle of the disconnected wing fin simultaneously tilting to fillet ripplet, there is the effect of reinforcement, be conducive to improve vibration resistance, make radiating fin and heat-transfer pipe can not produce because vibration is violent disengaging.
Concrete structure of the present invention is provided by accompanying drawing 1,2,3.
Brief description of the drawings
Accompanying drawing 1 is this front view to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube;
Accompanying drawing 2 is this top view and details enlarged drawing to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube;
Accompanying drawing 3 is this left view to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube.
Detailed description of the invention
As shown in Figure 1, 2, 3, the present invention's design the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube is made up of radiating fin 1 and heat transfer flat tube 2.Go out in the direct backing-off cutting in the upper and lower both sides of heat transfer flat tube 2 to the disconnected wing fin 1 of fillet ripplet, radiating fin 1 and heat transfer flat tube 2 are integrated, and in the process of backing-off cutting, between radiating fin 1 and heat transfer flat tube 2, be naturally the angle of inclination of α (0 ° of < α <90 °), be the arc that radius is R1, the spacing between radiating fin 1 is S simultaneously
f, the fin thickness of radiating fin 1 is δ, is highly H
p(seeing accompanying drawing 3); The fin junior unit wavelength to the disconnected wing fin 1 of fillet ripplet tilting is S
1, between the fillet ripplet that two radiuses are r, spacing is S
2, disconnected wing fin junior unit height is H (seeing accompanying drawing 2); Heat transfer flat tube 2 section thicknesses are W
1, width is L
1, in heat transfer flat tube 1, being evenly arranged vertically 2～10 not connected rectangular channels 3 (seeing accompanying drawing 1), rectangular channel 3 section thicknesses are W
2, width is L
2, the spacing between each rectangular channel 3 is L
3.When heat transfer element work, the fluid (as water or oil) that temperature is high flows into from one end of each rectangular channel 3 in heat transfer flat tube 2, flow out from the other end of rectangular channel 3 again, the horizontal radiating fin 1 of plunderring outside heat transfer flat tube 2 of air that temperature is lower, thus realize the hot fluid in heat transfer flat tube 2 and flow through the exchange heat between the cold air of radiating fin 1.
Claims (3)
1. to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube, comprise heat-transfer pipe and the disconnected wing radiating fin to fillet ripplet shape, wherein, heat-transfer pipe and radiating fin are aluminium matter monolithic construction, one machine-shaping.
2. according to claim 1 to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube, it is characterized in that: described radiating fin be tilt to the disconnected wing fin of fillet ripplet, the disconnected wing fin junior unit length of each ripple is S
1, be highly H, there is the fillet ripplet that two radiuses are r; Between two fillet ripplets, spacing is S
2, the fillet that is R by two radiuses seamlessly transits; Radiating fin is positioned at the upper and lower both sides of heat-transfer pipe.
3. according to claim 1 and 2 to the contactless thermal resistance heat transfer element of fillet oblique fracture formula finned tube, it is characterized in that: between radiating fin and heat-transfer pipe, be the angle of inclination of α (0 ° of < α <90 °), be radius is R simultaneously
1arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187560.2A CN104006693B (en) | 2014-05-06 | 2014-05-06 | Opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187560.2A CN104006693B (en) | 2014-05-06 | 2014-05-06 | Opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104006693A true CN104006693A (en) | 2014-08-27 |
| CN104006693B CN104006693B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410187560.2A Expired - Fee Related CN104006693B (en) | 2014-05-06 | 2014-05-06 | Opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382770A (en) * | 2016-09-27 | 2017-02-08 | 深圳山源电器股份有限公司 | Condenser |
| CN109944677A (en) * | 2019-03-01 | 2019-06-28 | 冀凯河北机电科技有限公司 | A kind of air engine new engine fin |
Citations (6)
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|---|---|---|---|---|
| CN201034431Y (en) * | 2007-01-19 | 2008-03-12 | 温晋生 | Finned tube for air cooling condensator |
| CN101509731A (en) * | 2009-03-06 | 2009-08-19 | 华南理工大学 | Special-shaped microchannel and exterior corrugated fin integration molding heat exchanger |
| CN202083266U (en) * | 2011-03-16 | 2011-12-21 | 深圳山源电器有限公司 | Heat transfer element with pipe integrated with corrugated fins |
| CN202195738U (en) * | 2011-03-16 | 2012-04-18 | 深圳山源电器有限公司 | Heat transfer component of sharp-peak round-valley type corrugated fin-pipe |
| CN202382605U (en) * | 2011-12-26 | 2012-08-15 | 杨智勇 | Heat exchanger with low external fluid resistance, small vortex and high heat exchange efficiency |
| CN203561263U (en) * | 2013-11-22 | 2014-04-23 | 茂名重力石化机械制造有限公司 | Oblique-fin finned tube |
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2014
- 2014-05-06 CN CN201410187560.2A patent/CN104006693B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034431Y (en) * | 2007-01-19 | 2008-03-12 | 温晋生 | Finned tube for air cooling condensator |
| CN101509731A (en) * | 2009-03-06 | 2009-08-19 | 华南理工大学 | Special-shaped microchannel and exterior corrugated fin integration molding heat exchanger |
| CN202083266U (en) * | 2011-03-16 | 2011-12-21 | 深圳山源电器有限公司 | Heat transfer element with pipe integrated with corrugated fins |
| CN202195738U (en) * | 2011-03-16 | 2012-04-18 | 深圳山源电器有限公司 | Heat transfer component of sharp-peak round-valley type corrugated fin-pipe |
| CN202382605U (en) * | 2011-12-26 | 2012-08-15 | 杨智勇 | Heat exchanger with low external fluid resistance, small vortex and high heat exchange efficiency |
| CN203561263U (en) * | 2013-11-22 | 2014-04-23 | 茂名重力石化机械制造有限公司 | Oblique-fin finned tube |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382770A (en) * | 2016-09-27 | 2017-02-08 | 深圳山源电器股份有限公司 | Condenser |
| CN109944677A (en) * | 2019-03-01 | 2019-06-28 | 冀凯河北机电科技有限公司 | A kind of air engine new engine fin |
| CN109944677B (en) * | 2019-03-01 | 2024-03-01 | 冀凯河北机电科技有限公司 | Novel engine fin for air engine |
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| Publication number | Publication date |
|---|---|
| CN104006693B (en) | 2017-05-10 |
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Granted publication date: 20170510 Termination date: 20180506 |