CN104142086A - Streamline equal-wave-amplitude corrugated fin of oval tube finned tube heat exchanger - Google Patents
Streamline equal-wave-amplitude corrugated fin of oval tube finned tube heat exchanger Download PDFInfo
- Publication number
- CN104142086A CN104142086A CN201410375532.3A CN201410375532A CN104142086A CN 104142086 A CN104142086 A CN 104142086A CN 201410375532 A CN201410375532 A CN 201410375532A CN 104142086 A CN104142086 A CN 104142086A
- Authority
- CN
- China
- Prior art keywords
- fin
- streamline
- ripple
- corrugations
- streamlined
- 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.)
- Granted
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a streamline equal-wave-amplitude corrugated fin of an oval tube finned tube heat exchanger. Streamline convex corrugations (4) and concave corrugations (5) in an alternately convex-concave shape are continuously punched on the portion, from an airflow inlet to an airflow outlet, of the fin (1) in the moving direction of streamlines, and the wave amplitudes of all the corrugations are the same and are 0.1-0.9 time the spacing of the fin. The cross sections of the convex corrugations (4) and the concave corrugations (5) can be in any needed shape (6). According to the streamlines, backflow does not occur at a tube tail, along the axial center section of a tube, of a channel on the side of a finned tube heat exchanger flat fin corresponding to the fin (1). The convex corrugations (4) and the concave corrugations (5) are distributed symmetrical about the longitudinal central lines and the transverse central lines of the corresponding holes (2). Due to the streamline convex corrugations (4) and the streamline concave corrugations (5), the area of the fin is increased, the fluid mainly flows along streamline channels formed by the convex corrugations (4)/the concave corrugations (5), flowing resistance is reduced, and the heat exchange capacity of the fin is improved. Dust is not prone to adhering to the fin in the using process, the performance of the fin is improved, and characteristics are kept.
Description
Technical field
The present invention relates to elliptical tube fin-tube type heat exchanger fin.Be particularly related to the streamlined wave amplitude corrugated fin that waits of a kind of elliptical tube fin-tube type heat exchanger.
Background technology
Fin-tube type heat exchanger application is very extensive, and energy consumption is large.Thereby the heat transfer characteristic of strengthening such heat exchanger is extremely important.The thermal resistance of such heat exchanger mainly concentrates on fin side, thereby energy consumption also mainly consumes in fin side.Generally, in such Tube Sheet of Heat Exchanger, mobile working medium is liquid, and the gas of the outer fin side flow of pipe is air or other mist in most of number situations.In pipe outside, fin being installed can increase heat exchange area, reaches the object that reduces thermal resistance.Owing to being subject to the restriction of heat exchanger volume, economy, operating cost and fin fin efficiency, the increase that fin area can not be unlimited.Elliptical tube fin-tube type heat exchanger is because its pipe geometry is compared with pipe and had certain cleanliness feature, but in the time that pipe sizing becomes large or flow velocity raising, its cleanliness variation, fluid skim over elliptical tube flow time lift-off cause that flowing pressure loss is larger, and form the recirculating zone that is unfavorable for heat transfer at elliptical tube afterbody, thereby flowing heat transfer performance needs further to be improved.For further improving the heat transfer property of elliptical tube fin heat exchanger, the fin of seeking applicable elliptical tube fin-tube type heat exchanger is very necessary.
The augmentation of heat transfer technology that the existing fin of elliptical tube fin-tube type heat exchanger the adopts cleanliness of fluid in elliptical tube tube bank and fin formation passage that do not have clear improvement, the pressure loss while making fluid flow through elliptical tube is larger.And these augmentation of heat transfer type fins are in enhanced fin surface heat transfer, and the flow disturbance that fin surface thrust causes also causes larger local resistance.
Summary of the invention
Thinking of the present invention is to flow by streamline by streamlined ripple guiding fluid, reaches suppression fluid lift-off, reduces flowing pressure loss, improves the object of fin exchange capability of heat.
For power achieves the above object, the streamlined corrugated fin of a kind of elliptical tube fin-tube type heat exchanger of Patent design of the present invention extrudes convex-concave alternate streamlined protruding ripple 4 and streamlined recessed ripple 5 from air flow inlet to outlet continuous punching according to streamline trend on fin 1.
Same trough, the crest line of described protruding ripple 4 and recessed ripple 5 are streamline, and ripple area border 8 is also streamline, and fin (plain film) median plane O-O is upper before punching press, determine as required with value of stream function.
Described protruding ripple 4 is identical with the wave amplitude of recessed ripple 5, is 0.1-0.9 times of spacing of fin.
Described streamline is that fin (1) institute respective tube fin heat exchanger plain film fin wing passage does not occur along pipe tail on the axial central cross-section of pipe the streamline refluxing.
The spacing of described protruding ripple 4, recessed ripple 5 or number are determined as required according to the value of stream function on ripple area border 8.
The cross section of described protruding ripple 4, recessed ripple 5 can be to need arbitrarily shape 6, such as, triangle, just/cosine waveform, parabola shaped, circular arc etc.
Described protruding ripple 4, recessed ripple 5 distribute alternately and are symmetrical about the center line in length and breadth of elliptical aperture 2 respectively.
Described elliptical ring boss 3 to the flange 7 turning up, is convenient to fin poling and location in its top punching press one.
The height of described elliptical ring boss 3 can change, and for regulating spacing of fin, welding rear boss 3 contact with elliptical tube tightly, plays to fix fin 1 and reduce the effect of thermal resistance.
After streamlined fin and pipe assembling, in the time that fluid flows between multi-layer streamline fin, streamlined convex-concave ripple by fin surface continuously guides, fluid mainly flows along set streamline, cross section flowing velocity is more even, the lift-off of elliptical tube afterbody fluid has obtained effective inhibition, improved elliptical tube afterbody heat exchange, reduced flow resistance.Meanwhile, fin surface convex-concave ripple has increased fin surface area, has reduced heat transfer resistance, has improved the exchange capability of heat of fin.
Brief description of the drawings
Fig. 1 is the streamlined wave amplitude corrugated fin that waits of a kind of elliptical tube fin-tube type heat exchanger.
Label in Fig. 1: 1. fin; 2. oval pore on fin; 3. elliptical ring boss; 4. protruding ripple; 5. recessed ripple; 6. bellows-shaped; 7. flange; 8. border, corrugated regions.
Detailed description of the invention
Referring to Fig. 1, the streamlined protruding ripple 4, recessed ripple 5 and the bellows-shaped 6 that the present invention includes oval pore 2 on fin 1, elliptical ring boss 3, stamp out.Oval pore 2 can adopt fork row or in-line arrangement mode.The height of elliptical ring boss 3 equals spacing of fin, plays the effect of fin location.Slightly there is a flange 7 at the top of elliptical ring boss 3 toward turning up, and is convenient to fin poling and spacing.Streamlined protruding ripple 4 (solid line) and recessed ripple 5 (dotted line) distribute alternately as required according to the value of stream function on ripple area border 8 between ripple area border 8, and symmetrical about the center line in length and breadth of elliptical aperture 2.Streamlined protruding ripple 4 all moves towards from air flow inlet to outlet continuous distributed along streamline with recessed ripple 5.Streamlined protruding ripple 4 is constant along the longitudinal with the wave amplitude of recessed ripple 5, wave amplitude is spacing of fin 0.1-0.9 times.The section bellows-shaped 6 of streamlined protruding ripple 4 and recessed ripple 5 can any needs shape, such as fold-line-shaped, just/cosine waveform, parabola shaped, circular arc etc.
The present invention, after fin 1 punch forming, is sleeved on fin 1 on elliptical tube through elliptical aperture 2, and 1 of fin passes through. and elliptical ring boss 3 is located, by just having completed the making of whole elliptical tube fin-tube type heat exchanger after a series of common process such as pressure testing in welding, pipe.
The operation principle of streamlined corrugated fin is: in the time flowing in the passage of fluid between streamlined corrugated fin, by the streamlined protruding ripple 4 of fin surface and the continuously guiding of recessed ripple 5, inner fluid passage mainly flows in the streamlined passage that protruding ripple 4 and recessed ripple 5 form, flow steadily, assignment of traffic is comparatively even, the lift-off that has effectively suppressed elliptical tube afterbody fluid, has obviously reduced flowing pressure loss.Meanwhile, protruding ripple 4 and recessed ripple 5 have increased fin surface and have amassed, reduced fin side heat transfer resistance, and fluid flow line type flows and make to be difficult for producing recirculating zone after elliptical tube, and the heat exchange property of elliptical tube rear portion fin is also improved significantly.More than invention makes streamlined corrugated fin have mobile and heat transfer property preferably.
Claims (7)
1. the streamlined wave amplitude corrugated fin that waits of elliptical tube fin-tube type heat exchanger, is characterized in that: above extrude convex-concave alternate streamlined protruding ripple (4) and streamlined recessed ripple (5) from air flow inlet to outlet continuous punching according to streamline trend at fin (1); Same trough, crest line are streamline; The ripply wave amplitude of institute is identical.
2. streamlined fin according to claim 1 (1), its streamline is that fin (1) institute respective tube fin heat exchanger plain film fin wing passage does not occur along pipe tail on the axial central cross-section of pipe the streamline refluxing.
3. streamlined fin according to claim 1 (1), ripple area border (8) are also streamlines, and fin (plain film) median plane O-O is upper before punching press, determine as required with value of stream function.
4. streamlined fin according to claim 1 (1), is characterized in that the spacing of protruding ripple (4), recessed ripple (5) or number are definite as required with the value of stream function of zone boundary 8.
5. streamlined fin according to claim 1 (1), the wave amplitude that it is characterized in that protruding ripple (4), recessed ripple (5) is spacing of fin 0.1-0.9 times.
6. streamlined fin according to claim 1 (1), the cross section that it is characterized in that protruding ripple (4), recessed ripple (5) can be to need arbitrarily shape (6).
7. streamlined fin according to claim 1 (1), is characterized in that the protruding ripple (4) stamping out, recessed ripple (5) distribute alternately and symmetrical about the center line in length and breadth of elliptical aperture (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375532.3A CN104142086B (en) | 2014-08-01 | 2014-08-01 | The streamlined wave amplitude corrugated fin that waits of elliptical tube fin-tube type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375532.3A CN104142086B (en) | 2014-08-01 | 2014-08-01 | The streamlined wave amplitude corrugated fin that waits of elliptical tube fin-tube type heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104142086A true CN104142086A (en) | 2014-11-12 |
| CN104142086B CN104142086B (en) | 2016-05-18 |
Family
ID=51851344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410375532.3A Active CN104142086B (en) | 2014-08-01 | 2014-08-01 | The streamlined wave amplitude corrugated fin that waits of elliptical tube fin-tube type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104142086B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579593A (en) * | 2018-12-06 | 2019-04-05 | 珠海格力电器股份有限公司 | Fin, heat exchanger, heat exchange system and air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098662U (en) * | 1991-06-08 | 1992-03-11 | 北京工业大学 | Plastic board heat exchanger with indirectly evaporative cooling |
| JPH0886582A (en) * | 1994-09-16 | 1996-04-02 | Samsung Electronics Co Ltd | Heat exchanger |
| CN1124057A (en) * | 1994-03-03 | 1996-06-05 | Gea空冷设备公司 | Finned tube heat exchanger |
| CN101233380A (en) * | 2005-07-29 | 2008-07-30 | 国立大学法人东京大学 | Heat exchanger, and air conditioner and air property converter that use the same |
-
2014
- 2014-08-01 CN CN201410375532.3A patent/CN104142086B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098662U (en) * | 1991-06-08 | 1992-03-11 | 北京工业大学 | Plastic board heat exchanger with indirectly evaporative cooling |
| CN1124057A (en) * | 1994-03-03 | 1996-06-05 | Gea空冷设备公司 | Finned tube heat exchanger |
| JPH0886582A (en) * | 1994-09-16 | 1996-04-02 | Samsung Electronics Co Ltd | Heat exchanger |
| CN101233380A (en) * | 2005-07-29 | 2008-07-30 | 国立大学法人东京大学 | Heat exchanger, and air conditioner and air property converter that use the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579593A (en) * | 2018-12-06 | 2019-04-05 | 珠海格力电器股份有限公司 | Fin, heat exchanger, heat exchange system and air conditioner |
| CN109579593B (en) * | 2018-12-06 | 2024-07-09 | 珠海格力电器股份有限公司 | Fin, heat exchanger, heat exchange system and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104142086B (en) | 2016-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6200598B2 (en) | Pre-set streamline wayby fin for finned tube heat exchanger | |
| CN104596343A (en) | Heat exchange fin and heat exchanger | |
| CN104110988B (en) | The streamlined change wave amplitude of circular pipe pipe fin heat exchanger just/cosine-shaped corrugated fin | |
| CN104142086A (en) | Streamline equal-wave-amplitude corrugated fin of oval tube finned tube heat exchanger | |
| CN104110993B (en) | Circular pipe pipe fin heat exchanger is streamlined waits wave amplitude corrugated fin | |
| CN104101244A (en) | Streamline amplitude-variable corrugated fins for elliptical tube-fin heat exchanger | |
| CN104142085B (en) | Circular pipe pipe fin heat exchanger streamlined change wave amplitude parabolical corrugated fin | |
| CN104101243B (en) | Circular pipe pipe fin heat exchanger streamlined change wave amplitude fold-line-shaped corrugated fin | |
| CN104089519B (en) | Circular pipe pipe fin heat exchanger is streamlined waits wave amplitude circular arc corrugated fin | |
| CN104110990B (en) | Circular pipe pipe fin heat exchanger streamlined change wave amplitude corrugated fin | |
| CN204555780U (en) | A kind of heat exchange fin and heat exchanger | |
| CN104089518B (en) | Elliptical tube fin-tube type heat exchanger is streamlined waits wave amplitude circular arc corrugated fin | |
| CN104110987B (en) | Circular pipe pipe fin heat exchanger is streamlined waits wave amplitude parabolical corrugated fin | |
| CN104154797A (en) | Tube fin heat changeover streamlined equal-amplitude sine/cosine corrugated fin | |
| CN203964745U (en) | For the fin and the heat exchanger with this fin of heat exchanger | |
| CN104154804B (en) | The streamlined change wave amplitude of elliptical tube fin-tube type heat exchanger just/cosine-shaped corrugated fin | |
| CN104154791B (en) | Elliptical tube fin-tube type heat exchanger is streamlined waits wave amplitude parabolical corrugated fin | |
| CN104132574B (en) | Elliptical tube fin-tube type heat exchanger streamlined change wave amplitude parabolical corrugated fin | |
| CN104110991B (en) | Elliptical tube fin-tube type heat exchanger streamlined wait wave amplitude just/cosine-shaped corrugated fin | |
| CN104110986B (en) | Circular pipe pipe fin heat exchanger streamlined change wave amplitude circular arc corrugated fin | |
| CN104089515B (en) | The streamlined wave amplitude fold-line-shaped corrugated fin that waits of circular pipe pipe fin heat exchanger | |
| CN104132573B (en) | The streamlined wave amplitude fold-line-shaped corrugated fin that waits of elliptical tube fin-tube type heat exchanger | |
| CN104142083B (en) | The streamlined change wave amplitude of elliptical tube fin-tube type heat exchanger fold-line-shaped corrugated fin | |
| CN104110992B (en) | Elliptical tube fin-tube type heat exchanger streamlined change wave amplitude circular arc corrugated fin | |
| CN202254498U (en) | Air conditioning heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |