CN101556124A - Heat transfer tube - Google Patents
Heat transfer tube Download PDFInfo
- Publication number
- CN101556124A CN101556124A CNA2009100815088A CN200910081508A CN101556124A CN 101556124 A CN101556124 A CN 101556124A CN A2009100815088 A CNA2009100815088 A CN A2009100815088A CN 200910081508 A CN200910081508 A CN 200910081508A CN 101556124 A CN101556124 A CN 101556124A
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- Prior art keywords
- fin
- heat
- transfer pipe
- heat transfer
- internal tooth
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- 238000012546 transfer Methods 0.000 title claims abstract description 129
- 210000000515 tooth Anatomy 0.000 claims description 66
- 238000012545 processing Methods 0.000 abstract description 6
- 238000004378 air conditioning Methods 0.000 abstract description 4
- 238000005057 refrigeration Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 abstract 1
- 230000005494 condensation Effects 0.000 description 14
- 238000009833 condensation Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000003507 refrigerant Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/10—Secondary fins, e.g. projections or recesses on main fins
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a heat transfer tube, and in particular to a heat transfer tube used for refrigeration equipment and air conditioning equipment. The heat transfer tube comprises a plurality of mutually parallel fins arranged on an external surface. The fin comprises first fins and second fins. The first fin is connected with the external surface of the heat transfer tube, and the end far from the heat transfer tube is narrower than the end near to the heat transfer tube, and the cross section takes the shape of a narrow upper part and a wide lower part; and one sides of the first fins are provided with the second fins which are arranged in the spiral direction of the first fins at intervals. The first fins and the second fins effectively enlarge the heat transfer area of the external surface of the heat transfer tube, and meanwhile comparatively well reduce or eliminate a condensate film, effectively lead the condensate film to quickly flow off the surface of the heat transfer tube, and are easy for processing. The inner surface of the heat transfer tube is provided with a first layer of internal teeth and a second layer of internal teeth, which not only enlarge the heat exchange area of the inner surface of the heat transfer tube, but also strengthen turbulent flow, reduce or abate the laminar flow effect of coolants and enhance the heat exchange efficiency of the heat transfer tube.
Description
Technical field
The present invention relates to a kind of heat transfer element, particularly relate to a kind of heat-transfer pipe that refrigeration plant and air-conditioning equipment are used.
Background technology
Heat-transfer pipe is a kind of evaporimeter of air-conditioning, refrigeration industry and heat transfer element in the condenser of being widely used in.In recent years, along with developing rapidly of refrigeration, air-conditioning technical, promoted the continual renovation of two device manufacturing technologies.The replacement of high efficiency, miniaturization, lightweight and new cooling media is still the main direction of two devices development, and the design and the technology thereof of the heat-transfer pipe of using around two devices are used, also constantly upgrade, development.
The manufacturing in enormous quantities and the use of existing various heat-transfer pipes, making the performance of two devices have increases substantially, but these heat-transfer pipes all exist common problem, be that the heat-transfer pipe outer surface is when the cold-producing medium film condensation, the existence of condensate film has constituted the thermal resistance of condensation heat transfer, thereby caused temperature difference loss and reduce refrigerating efficiency, influenced the heat transfer property of heat-transfer pipe.
In order to address the above problem, people study heat transfer mechanism, moulding frock and the moulding process of heat-transfer pipe, and the surfaces externally and internally of heat-transfer pipe is improved.As the Chinese patent publication number is CN1982828A, open day be on June 20th, 2007 patent disclosure a kind of flooded electric refrigerator unit copper condensing heat-exchanging pipe, described heat exchanger tube comprises polished rod portion, be provided with the fin portion of fin, the transition part that connects polished rod portion and fin portion, described fin is divided near the fin of tube surface bottom and fin top away from tube surface, also be provided with the secondary fin on the described fin, have certain axially spaced-apart between the axially adjacent secondary fin, the secondary fin pitch is the high 1/3-2/3 of fin wing from the top surface distance of fin top.Also be provided with on the described fin from top surface to pressing down three fins that are set as shape, have certain axially spaced-apart between three times axially adjacent fins.
This scheme increases the heat transfer area of heat-transfer pipe by secondary fin and three fins are set on the heat-transfer pipe outer surface, the attenuate condensate film, thus reach the thermal resistance that reduces condensation heat transfer, reduce temperature difference loss, improve the purpose of heat transfer property.Yet the secondary fin of this outer wing and the somewhat complex design of three fins make the condensation heat transfer process of cold-producing medium also become more complicated, and then cause the decline of its heat transfer property; In addition, complicated outer wing design also makes the difficulty of processing of heat-transfer pipe increase, and machining accuracy is not enough, is unfavorable for producing by batch in a large number.
In a word, need the urgent technical problem that solves of those skilled in the art to be exactly: how can provide a kind of good heat-transfer, heat transfer efficiency height, and the heat-transfer pipe that is easy to process.
Summary of the invention
Technical problem to be solved by this invention provides a kind of good heat-transfer, heat transfer efficiency height, and the heat-transfer pipe that is easy to process.
In order to address the above problem, the embodiment of the invention provides a kind of heat-transfer pipe, comprise many fins that are parallel to each other that are arranged at outer surface, described fin comprises first fin and second fin, described first fin is connected with the heat-transfer pipe outer surface, be narrower than nearly heat transfer pipe end away from the heat transfer pipe end, cross section is up-narrow and down-wide shape; One side of described first fin is provided with second fin, and described second fin is provided with on the hand of spiral of first fin at interval.
Preferably, described heat-transfer pipe also comprises many internal tooths that are parallel to each other that are arranged at inner surface, and described internal tooth comprises ground floor internal tooth and second layer internal tooth, and the ground floor internal tooth is higher than second layer internal tooth, described ground floor internal tooth and the cross arrangement of second layer internal tooth.
Preferably, described first fin comprises fin bottom and fin top, and the cross section of described fin bottom is a rectangle, and the cross section of described fin top is a triangle.
Preferably, the cross section of described second fin is a triangle.
Preferably, described second fin is arranged on the 1/3-2/3 place of first fin height.
Preferably, described first fin is connected with heat-transfer pipe outer surface arc, and described second fin is connected with the first fin arc.
Preferably, the cross section of described ground floor internal tooth and second layer internal tooth is up-narrow and down-wide trapezoidal.
Preferably, described ground floor internal tooth is connected with second layer internal tooth arc.
Preferably, described fin is at described heat-transfer pipe outer surface spiral surrounding, and the helical angle scope is the 0.30-0.45 degree; And/or the quantity of described fin is per inch 40-60; And/or the quantity of described internal tooth is the 35-65 bar.
Preferably, described internal tooth is at the inner surface spiral surrounding of described heat-transfer pipe, and the helical angle scope is the 25-40 degree.
Compared with prior art, the technical scheme of one embodiment of the present of invention has the following advantages:
At first, the outer surface of heat-transfer pipe of the present invention is provided with first fin and second fin, has effectively increased the heat transfer area of heat-transfer pipe outer surface; Cross section is the pinnacle structure attenuate or eliminate condensate film preferably of first fin of up-narrow and down-wide shape, and then the condition that makes condensing steam be more conducive to condense, reduce the condensation heat transfer thermal resistance, reduce temperature difference loss; Be arranged at first fin, one side, can dredge the rapid stream of condensate film effectively with the structure of angled second fin of first fin and take off tube surface.This design by first, second fin can make the condensation heat transfer process of steam more be tending towards rationally, thereby reaches the purpose of improving heat transfer property.
Secondly, the design of the high and low internal tooth cross arrangement of heat-transfer pipe of the present invention, when increasing heat-transfer pipe inner surface heat exchange area, make the laminar flow of refrigerant fluid be tending towards disappearing, flow-disturbing is further strengthened, also cause the turbulent secondary stream of refrigerant further to strengthen, thereby increase the heat exchange efficiency of heat-transfer pipe.
Then, the design of the wing shape of heat-transfer pipe of the present invention is easy to processing, has reduced the complexity of producing, and is beneficial to production in enormous quantities.
Description of drawings
Fig. 1 is the generalized section of the preferred embodiment of a kind of heat-transfer pipe of the present invention;
Fig. 2 is the sectional perspective schematic diagram of heat-transfer pipe preferred embodiment shown in Figure 1;
Fig. 3 is the enlarged drawing of A part among Fig. 1;
Fig. 4 is the internal tooth structural representation of heat-transfer pipe preferred embodiment shown in Figure 1.
The specific embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1, show the generalized section of the preferred embodiment of a kind of heat-transfer pipe of the present invention.The heat-transfer pipe 1 of present embodiment is to be processed into through carrying out rolling in the screw thread core print of an inside and three groups of system fin set of blades on tube wall, comprises polished rod portion 2, fin portion 3, connects the transition part 4 of polished rod portion 2 and fin portion 3.The former pipe of described polished rod portion 2 for processing, its outer diameter D scope is the 12-26 millimeter, the scope of the wall thickness T of polished rod portion 2 is preferably the 1.1-1.2 millimeter.Described fin portion 3 is made up of many that the are arranged at outer surface fins that are parallel to each other 31, and the quantity of fin 31 is per inch 40-60.Described transition part 4 is for having the part of imperfect fin 31.Heat-transfer pipe 1 can adopt Heat Conduction Materials such as copper, copper alloy, stainless steel or mild steel to manufacture, and is preferred, and the heat-transfer pipe of present embodiment 1 is made by copper product.Certainly, those skilled in the art also can adopt other material that is fit to make heat-transfer pipe 1, and the present invention need not make restriction to this.
With reference to Fig. 2, show the sectional perspective schematic diagram of heat-transfer pipe 1 preferred embodiment shown in Figure 1.The outer surface of described heat-transfer pipe 1 is provided with fin portion 3, fin portion 3 is made up of many fins that are parallel to each other 31, described fin 31 is for being arranged at the single-screw fin on heat-transfer pipe 1 outer surface continuously, and the scope of helical angle is the 0.30-0.45 degree, comprises first fin 311 and second fin 312.
Described first fin 311 links to each other with the outer surface arc of heat-transfer pipe 1, and narrow away from nearer heat-transfer pipe 1 end of heat-transfer pipe 1 end, cross section is up-narrow and down-wide shape.Concrete, cross section can be triangle, class triangle, and up-narrow and down-wide is trapezoidal, also can be shape as shown in this embodiment, can also have the shape of pinnacle structure for other is similar, is beneficial to attenuate or eliminates condensate film.In the present embodiment, described first fin 311 comprises fin top 311a and fin bottom 311b, and the cross section of fin top 311a is about triangle, and the cross section of fin bottom 311b is the rectangle with the outer surface rounding off of heat-transfer pipe 1.The scope of the high H1 of wing of first fin 311 is the 0.8-1.0 millimeter, and the thick t1 of wing is the 0.2-0.3 millimeter, and the wide t11 of wing is the 0.35-0.45 millimeter, and the thick t3 of the diapire of fin portion 3 is the 0.6-0.7 millimeter.The wing well width U1 that two first adjacent fins are 311 is the 0.35-0.45 millimeter.First fin 31 is when effectively increasing the outer surface heat transfer area of heat-transfer pipe 1, its pinnacle structure can reduce the condensate film height, the condensate film surface tension is changed, thereby more help attenuate or eliminate condensate film, the condition that makes condensing steam be more conducive to condense, reduce the condensation heat transfer thermal resistance, reduce temperature difference loss.First fin 311 is connected with the arc of the outer surface of heat-transfer pipe 1, more helps the surface that condensate film stream takes off heat-transfer pipe 1, strengthens heat-transfer effect.Need to prove that it is the fin 31 of up-narrow and down-wide shape that those skilled in the art also can adopt other cross section, as triangle etc., the slick and sly or non-rounding off with the outer surface of heat-transfer pipe 1, the present invention need not make restriction to this.
Please be simultaneously with reference to shown in Figure 3, side at described first fin 311,1/3-2/3 place at first fin, 311 height, be provided with second fin 312, described second fin 312 can utilize cutter radially to form to pressing down to establish from the fin top of first fin 311, and the depth H 2 of depressing of second fin 312 is the 0.25-0.40 millimeter in the present embodiment.The cross section of described second fin 312 is about triangle, preferably, the cross section of second fin 312 is a right angled triangle in the present embodiment, one right-angle side of growing of this right angled triangle is perpendicular to first fin 311, most advanced and sophisticated away from first fin 311, described second fin 312 is connected with first fin, 311 arcs.The scope of the wide t22 of wing of second fin 312 is the 0.10-0.25 millimeter, the scope of wing oblique angle γ 2 (wing of second fin 312 to the angle of the hand of spiral of first fin 311) is the 30-50 degree, all keeps at a certain distance away on the hand of spiral of first fin 311 between per two second fins 312.Described second fin 312 and first fin, 311 opposite sides be the 0.10-0.15 millimeter apart from t2.Side at first fin 311 is provided with second fin 312, the heat transfer area of heat-transfer pipe 1 is further strengthened, condensate film is through the attenuate of first fin 311 and second fin 312 simultaneously, basically just can reach the degree of eliminating condensate film, make the condensation heat transfer process of steam more be tending towards ideal process; In addition, first fin 311 and heat-transfer pipe 1, and second fin 312 is connected design with the arc of first fin 311, can dredge the quick stream of condensate film and take off the surface of heat-transfer pipe 1, thereby reduce the condensation heat transfer thermal resistance, reduce temperature difference loss, reach the purpose of improving the condensation heat transfer performance; And this design and the Chinese patent publication number of first fin 311 and second fin 312 are CN1982828A, and the patent documents that open day is on June 20th, 2007 is compared, and has lowered difficulty of processing greatly, are easier to produce in enormous quantities and processing.
The inner surface of described heat-transfer pipe 1 also is provided with many internal tooths that are parallel to each other, described internal tooth comprises ground floor internal tooth 5 and second layer internal tooth 6, ground floor internal tooth 5 is higher than second layer internal tooth 6, ground floor, the cross arrangement of second layer internal tooth become 25-40 degree helixangle spiral surrounding at the inner surface of heat-transfer pipe 1 with the axis direction of heat-transfer pipe 1.With reference to Fig. 4, show the internal tooth structural representation of heat-transfer pipe 1 preferred embodiment shown in Figure 1.The cross section of described ground floor internal tooth 5 and second layer internal tooth 6 is up-narrow and down-wide trapezoidal, and preferred, the cross section of ground floor internal tooth 5 and second layer internal tooth 6 is isosceles trapezoid in the present embodiment.Ground floor internal tooth 5 arcs connect second layer internal tooth 6, and all are rounding ofves at the bottom of the tooth top of ground floor, second layer internal tooth and the tooth.Wherein, the scope of the tooth depth h11 of described ground floor internal tooth 5 is the 0.20-0.35 millimeter, and the scope of the tooth depth h22 of described second layer internal tooth 6 is the 0.10-0.25 millimeter, and the scope of the angle of the crossing α of ground floor internal tooth 5 and second layer internal tooth 6 is the 60-80 degree.Described ground floor, second layer internal tooth spiral are arranged at the inner surface of heat-transfer pipe 1, and the scope of helixangle is the 25-40 degree, and the interior tooth bar scope of counting is the 35-65 bar.The ground floor of cross arrangement, second layer internal tooth are when increasing heat-transfer pipe 1 inner surface heat transfer area in the present embodiment, change by the height intersection of refrigerant fluid with internal tooth, make the laminar flow of refrigerant fluid be tending towards disappearing, flow-disturbing is further strengthened, also cause the further reinforcement of the turbulent secondary stream of refrigerant, intraductal heat exchange efficient is increased.Need to prove, those skilled in the art can be as required, adopt other internal tooth shape that is fit to, as rounding off at the bottom of tooth top and the tooth, cross section is the internal tooth of class triangle, perhaps ground floor internal tooth that is provided with at interval and second layer internal tooth etc., the present invention need not make restriction to this.
The outer surface heat transfer area that first fin 311 of the heat-transfer pipe 1 of the preferred embodiment of the present invention, second fin 312 have increased heat-transfer pipe 1 effectively, and the pinnacle structure of first fin 311 and second fin 312 more helps attenuate or eliminates condensate film, make that condensing steam is more conducive to condense, dredging condensate film opens from the surperficial stream of heat-transfer pipe 1, reduce the thermal resistance of condensation heat transfer, reduce the condition of temperature difference loss, the condensation heat transfer process of steam more is tending towards rationally, thereby reaches the performance of improving the condensation heat transfer performance, optimizing condenser.Described ground floor internal tooth 5 and second layer internal tooth 6 adopt the shape of trapezoidal cross-section, have therefore increased the inner surface heat transfer area of heat-transfer pipe 1, and make the refrigerant in the heat-transfer pipe 1 that turbulent secondary stream take place, thereby intraductal heat transfer efficient is increased.By to the outer wing of heat-transfer pipe 1 and the improvement of internal tooth, the present invention improves also and has strengthened the complex heat transfer efficient on the inside and outside surface of heat-transfer pipe, improves the purpose that the condensation heat transfer performance is optimized condenser performance thereby reach.
More than a kind of heat-transfer pipe provided by the present invention is described in detail, used specific case herein principle of the present invention and embodiment set forth, the explanation of above embodiment just is used for help understanding method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1, a kind of heat-transfer pipe comprises many fins that are parallel to each other that are arranged at outer surface, it is characterized in that,
Described fin comprises first fin and second fin, and described first fin is connected with the heat-transfer pipe outer surface, is narrower than nearly heat transfer pipe end away from the heat transfer pipe end, and cross section is up-narrow and down-wide shape; One side of described first fin is provided with second fin, and described second fin is provided with on the hand of spiral of first fin at interval.
2, heat-transfer pipe according to claim 1, it is characterized in that, described heat-transfer pipe also comprises many internal tooths that are parallel to each other that are arranged at inner surface, described internal tooth comprises ground floor internal tooth and second layer internal tooth, the ground floor internal tooth is higher than second layer internal tooth, described ground floor internal tooth and the cross arrangement of second layer internal tooth.
3, heat-transfer pipe according to claim 1 and 2 is characterized in that, described first fin comprises fin bottom and fin top, and the cross section of described fin bottom is a rectangle, and the cross section of described fin top is a triangle.
4, heat-transfer pipe according to claim 1 and 2 is characterized in that, the cross section of described second fin is a triangle.
5, heat-transfer pipe according to claim 1 and 2 is characterized in that, described second fin is arranged on the 1/3-2/3 place of first fin height.
6, heat-transfer pipe according to claim 1 and 2 is characterized in that, described first fin is connected with heat-transfer pipe outer surface arc, and described second fin is connected with the first fin arc.
7, heat-transfer pipe according to claim 2 is characterized in that, the cross section of described ground floor internal tooth and second layer internal tooth is up-narrow and down-wide trapezoidal.
8, heat-transfer pipe according to claim 7 is characterized in that, described ground floor internal tooth is connected with second layer internal tooth arc.
9, heat-transfer pipe according to claim 1 and 2 is characterized in that, described fin is at described heat-transfer pipe outer surface spiral surrounding, and the helical angle scope is the 0.30-0.45 degree; And/or
The quantity of described fin is per inch 40-60; And/or
The quantity of described internal tooth is the 35-65 bar.
10, heat-transfer pipe according to claim 2 is characterized in that, described internal tooth is at the inner surface spiral surrounding of described heat-transfer pipe, and the helical angle scope is the 25-40 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100815088A CN101556124B (en) | 2009-04-10 | 2009-04-10 | Heat transfer tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100815088A CN101556124B (en) | 2009-04-10 | 2009-04-10 | Heat transfer tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101556124A true CN101556124A (en) | 2009-10-14 |
| CN101556124B CN101556124B (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100815088A Active CN101556124B (en) | 2009-04-10 | 2009-04-10 | Heat transfer tube |
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| Country | Link |
|---|---|
| CN (1) | CN101556124B (en) |
Cited By (9)
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| CN101813433A (en) * | 2010-03-18 | 2010-08-25 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube for condensation |
| EP2339283A2 (en) | 2009-12-22 | 2011-06-29 | Wieland-Werke AG | Heat transfer pipe and method for manufacturing same |
| WO2013087140A1 (en) * | 2011-12-16 | 2013-06-20 | Wieland-Werke Ag | Condenser tubes with additional flank structure |
| CN103486894A (en) * | 2013-10-10 | 2014-01-01 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube for falling film evaporator and manufacturing method thereof |
| CN107782192A (en) * | 2017-10-27 | 2018-03-09 | 华南理工大学 | A kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser |
| CN108801034A (en) * | 2018-05-02 | 2018-11-13 | 珠海格力电器股份有限公司 | Heat exchanger tube, heat exchanger and heat pump unit |
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| WO2021114738A1 (en) * | 2019-12-10 | 2021-06-17 | 珠海格力电器股份有限公司 | Heat exchange tube, heat exchanger, and air conditioner |
| EP4390292A1 (en) | 2022-12-22 | 2024-06-26 | Wieland-Werke AG | Heat exchanger tube |
Family Cites Families (3)
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|---|---|---|---|---|
| CN100458344C (en) * | 2005-12-13 | 2009-02-04 | 金龙精密铜管集团股份有限公司 | Copper condensing heat-exchanging pipe for flooded electric refrigerator set |
| CN100458348C (en) * | 2005-12-13 | 2009-02-04 | 金龙精密铜管集团股份有限公司 | Efficient heat-exchanging pipe of evaporator for electric refrigerator set |
| CN101004336A (en) * | 2007-01-19 | 2007-07-25 | 金龙精密铜管集团股份有限公司 | Female screw heat-transfer pipe |
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2009
- 2009-04-10 CN CN2009100815088A patent/CN101556124B/en active Active
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| US9234709B2 (en) | 2009-12-22 | 2016-01-12 | Wieland-Werke Ag | Heat exchanger tube and methods for producing a heat exchanger tube |
| EP2339283A2 (en) | 2009-12-22 | 2011-06-29 | Wieland-Werke AG | Heat transfer pipe and method for manufacturing same |
| DE102009060395A1 (en) | 2009-12-22 | 2011-06-30 | Wieland-Werke AG, 89079 | Heat exchanger tube and method for producing a heat exchanger tube |
| JP2011133217A (en) * | 2009-12-22 | 2011-07-07 | Wieland Werke Ag | Heat transfer pipe and method for manufacturing the same |
| US10024607B2 (en) | 2009-12-22 | 2018-07-17 | Wieland-Werke Ag | Heat exchanger tube and methods for producing a heat exchanger tube |
| CN101813433B (en) * | 2010-03-18 | 2012-10-24 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube for condensation |
| CN101813433A (en) * | 2010-03-18 | 2010-08-25 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube for condensation |
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| JP2015500455A (en) * | 2011-12-16 | 2015-01-05 | ヴィーラント ウェルケ アクチーエン ゲゼルシャフトＷｉｅｌａｎｄ−Ｗｅｒｋｅ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ | Liquefier pipe with additional side structure |
| US10094625B2 (en) | 2011-12-16 | 2018-10-09 | Wieland-Werke Ag | Condenser tubes with additional flank structure |
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| CN103486894A (en) * | 2013-10-10 | 2014-01-01 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube for falling film evaporator and manufacturing method thereof |
| CN107782192A (en) * | 2017-10-27 | 2018-03-09 | 华南理工大学 | A kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser |
| CN107782192B (en) * | 2017-10-27 | 2023-12-01 | 华南理工大学 | Stepped grid inner and outer finned tube for evaporation and condensation |
| CN109900151A (en) * | 2017-12-11 | 2019-06-18 | 珠海格力电器股份有限公司 | Heat exchanger tube, heat exchanger and air conditioner |
| WO2019114325A1 (en) * | 2017-12-11 | 2019-06-20 | 格力电器（武汉）有限公司 | Heat exchange tube, heat exchanger and air conditioner |
| CN108801034A (en) * | 2018-05-02 | 2018-11-13 | 珠海格力电器股份有限公司 | Heat exchanger tube, heat exchanger and heat pump unit |
| WO2021114738A1 (en) * | 2019-12-10 | 2021-06-17 | 珠海格力电器股份有限公司 | Heat exchange tube, heat exchanger, and air conditioner |
| EP4390292A1 (en) | 2022-12-22 | 2024-06-26 | Wieland-Werke AG | Heat exchanger tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101556124B (en) | 2011-11-16 |
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Denomination of invention: Axial positioning device of heat transfer pipe internal rotation cleaning element Effective date of registration: 20171215 Granted publication date: 20111116 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Wuxi Golden Dragon Kawamura Precision Tube Co., Ltd.|Chongqing Longyu Precision Copper Tube Co., Ltd.|Henan Longhui Copper Industry Co., Ltd.|Xinxiang Jinxiang Precision Pipe Fittings Co., Ltd.|Xinxiang Longteng Refrigeration Technology Co.,Ltd.|Jiangsu Canghuan Copper Industry Co.,Ltd.|Jinlong Precision Copper Pipe Group Co., Ltd.|Guangdong Longfeng Precise Copper Tube Co., Ltd. Registration number: 2017990001045 |
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Address after: 404000 588 Airport Road, Wanzhou District, Chongqing (Wanzhou Economic Development Zone) Patentee after: Jinlong Precision Copper Pipe Group Co., Ltd. Address before: 453000 No. 191 Renmin West Road, Henan, Xinxiang Patentee before: Jinlong Precision Copper Pipe Group Co., Ltd. |
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Date of cancellation: 20190814 Granted publication date: 20111116 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Jinlong Precision Copper Pipe Group Co., Ltd. Registration number: 2017990001045 |
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Denomination of invention: Axial positioning device of heat transfer pipe internal rotation cleaning element Effective date of registration: 20190830 Granted publication date: 20111116 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Jinlong Precision Copper Pipe Group Co., Ltd. Registration number: Y2019990000127 |
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