CN106679492A - Heat exchange pipe - Google Patents
Heat exchange pipe Download PDFInfo
- Publication number
- CN106679492A CN106679492A CN201611005906.8A CN201611005906A CN106679492A CN 106679492 A CN106679492 A CN 106679492A CN 201611005906 A CN201611005906 A CN 201611005906A CN 106679492 A CN106679492 A CN 106679492A
- Authority
- CN
- China
- Prior art keywords
- pipe
- heat exchanger
- wall
- aluminum pipe
- exchanger tube
- 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.)
- Pending
Links
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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
-
- 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
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
- F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/06—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes composite, e.g. polymers with fillers or fibres
Abstract
The invention discloses a heat exchange pipe. The heat exchange pipe comprises a copper pipe and an aluminum pipe; the outer wall of the copper pipe is closely attached to the inner wall of the aluminum pipe through a pipe expansion procedure; a plurality of shallow grooves of which the direction is parallel to the axes of the copper pipe and the aluminum pipe are pressed in the outer wall of the aluminum pipe; the inner wall of the aluminum pipe convexly enters the outer wall of the copper pipe; and a plurality of tooth ribs with trapezoid or rectangular cross sections are uniformly distributed in the circumferential direction of the inner wall of the copper pipe. The heat exchange pipe has the beneficial effect that the heat exchange efficiency of the heat exchange pipe can be improved, or the consumption of materials for manufacturing the heat exchange pipe can be reduced.
Description
Technical field
The present invention relates to heat-transfer pipe technical field, and in particular to a kind of copper pipe is plugged on the heat exchange Manifold technology in aluminum pipe.
Background technology
Interior condenser and vaporizer are formed by the pipe dish system that exchanges heat in air-conditioning.The heat exchanger tube is mostly copper pipe,
In addition to pure copper tube, also copper aluminum composite pipes, that is, copper pipe is arranged in aluminum pipe, made by tube expansion operation copper pipe outer surface and
What aluminum pipe was close together, national departments concerned has also formulated corresponding ministry standard.Copper-Aluminum compound heat exchanger tube also has one kind to be
The structure of aluminium foil is wound outside copper pipe.Application number：201310451635.9, the B of Authorization Notice No. CN 103471167, title
For the patent that " Radiative-convectivecopper-aluminum copper-aluminum compound radiator " discloses such correlation：" it is installed with the aluminium section bar of perpendicular copper pipe including inside
Heat dissipation element, the perpendicular copper pipe two ends of 4-15 group heat dissipation elements are connected on horizontal copper pipe up and down, and transverse tube two ends are equipped with pipe
Interface, is characterized in that：The core pipe both sides of described aluminium section bar are the triangle fin for being respectively provided with front and back panel, core pipe and
Fin is provided with side fin, and equipped with the decorative face helmet with slide rail on front panel, rear board top is arc equipped with upper end
Rear deflector, be connected to flat-top gripper shoe between rear deflector and transverse tube, upper lateral tube periphery is surrounded by section for triangle
Flat-top cover, flat-top cover extension board bottom is connected to section bar top, and arc guide vane is housed on the extension board." this patent adopts
Copper-Aluminum compound Manifold technology is used, the consumption of copper material can be in a large number saved.But this patent is as an above patent, its tubing
Outer surface is equal to the area of the outer surface of its tubing with air contact area, there is a problem of that area of dissipation is little.
Application number：200710036470.3, Authorization Notice No.：The C of CN 100485303, entitled " one kind reinforcing condensation is used
The Chinese invention patent of heat-transfer pipe " discloses a patented technology：It is " circumferentially distributed including heat-transfer pipe main body, body outer surface
Spiral or parallel fins, fin between groove between the wing that formed, heat-transfer pipe body inner surface is provided with female thread, wherein, described wing
Circumferentially arranged with the horizontal fin being parallel to each other or stagger on piece wall, groove between groove and underwing between formation upper fin, on the horizontal fin and fin walls
The connection of side wall, constitute deflection angle in the junction of fin walls and side wall and horizontal fin." though the patented technology can effectively improve and change
Hot property, but complex structure, processing and manufacturing difficulty is big, is not suitable for the heat exchanger tube manufacture that thin-wall aluminium pipe and copper pipe are fixed together.
The content of the invention
The main inventive purpose of the present invention, it is big to be to provide a kind of outer tube outer surface and air contact area, inner surface and interior
The outer surface contact area of pipe is big, is conducive to the Copper-Aluminum compound for improving heat exchanger effectiveness and having the easy feature of processing and manufacturing to exchange heat
Pipe.
Technical scheme used by the present invention is：A kind of heat exchanger tube, including copper pipe and aluminum pipe, the outer wall of copper pipe passes through tube expansion work
The inwall of sequence and aluminum pipe is brought into close contact；The outer wall of aluminum pipe is suppressed with the shallow slot of some trends and the diameter parallel of two pipes, aluminum pipe
Inwall protrudes into the outer wall of copper pipe, and it is trapezoidal or rectangle tooth rib that the inwall of copper pipe is circumferentially laid with some cross sections.
In the above heat exchanger tube course of processing, aluminum pipe is plugged on one and is provided with uniform some circumferences, trend and two pipe axis
In parallel raised pipe processing, the internal diameter of pipe processing is equal to the external diameter of aluminum pipe requirement when being combined into pipe.In tube expansion process
In, the projection on pipe processing charges into the outer surface of aluminum pipe, so as to form some needs in the outer surface of aluminum pipe and two pipe axles
The parallel shallow slot of line, ultimately increases the area of dissipation of aluminum pipe when using.And while shallow slot is formed, the inner surface of aluminum pipe is again
Protrude into simultaneously in the tube wall of copper pipe, so as to increased the contact area of aluminum pipe and copper pipe, be so also advantageous for copper pipe and aluminum
Heat exchange transmission between pipe.Therefore, the present invention can improve copper pipe and aluminum in the case where material consumption and caliber is not changed
Heat exchange between pipe, while improving the area of dissipation of aluminum pipe, and then improves the using effect of heat exchanger tube, so as to improve using this
The competitiveness of the manufactured product of invention.And to radiating tube using effect require identical in the case of, then can reduce aluminum pipe and
On the one hand the consumption of copper pipe, so reduce national valuable source and waste, and on the other hand reduces using the manufactured product of the present invention
Cost, so as to improve the competitiveness of product.In addition, the setting of tooth rib, then be conducive to improving the heat exchange of the present invention and fluid.This
Invention also has simple structure, the easy advantage of processing and manufacturing.
Preferably, the outer wall of aluminum pipe has also rolled some screw thread shallow slots, correspondingly the inner thread shape ground of aluminum pipe is convex
Enter the outer wall of copper pipe.This preferred version, can further improve contact area, reliability and the conducting power of aluminum pipe and copper pipe,
The heat exchange area of aluminum pipe and surrounding can also be increased simultaneously, so as to improve the service behaviour of the present invention.
Preferably, the cross section of shallow slot is circular arc, oval or ellipse.It should be noted that circular arc, ellipse
Shape or trapezoidal and aluminum pipe outer surface are that fillet is excessive, and trapezoidal two waists and a bottom are also that fillet is excessive.This preferred version, can be with
Stress concentration is prevented, the safety in utilization and service life of heat exchanger tube is improved.
Preferred version is that the middle part of the tooth rib top surface is recessed.The recessed trend and tooth rib move towards identical, even
With the diameter parallel of copper pipe, or for spiral type.This preferred version, tooth rib structure stability is high, is not easily susceptible to during tube expansion
Damage, while being conducive to improving the contact area of copper pipe inner surface and fluid, and then improve the heat exchange property of the present invention.
Preferably, the trend of the tooth rib is identical with the axial direction of copper pipe, in order to process.Yet further preferably, institute
Fin is opened in the part that tooth rib is stated away from aluminum pipe to both sides extension, so as to expand the heat exchange area of fluid and copper pipe.
Another is preferably, and the tooth rib is spiral trend, and helical angle is more than 0 °, less than or equal to 60 °.This preferred version,
Tooth rib structure stability is high, is not easily susceptible to damage during tube expansion.Yet further preferably, portion of the tooth rib away from aluminum pipe
Divide to extend to both sides and open fin, so as to expand the heat exchange area of fluid and copper pipe.
In sum, the invention has the beneficial effects as follows：The present invention can in the case where material consumption and caliber is not changed,
The heat exchange between copper pipe and aluminum pipe is improved, while improving the area of dissipation of aluminum pipe, and then the using effect of heat exchanger tube is improved, from
And improve the competitiveness using the manufactured product of the present invention.And in the case of identical is required radiating tube using effect, then may be used
To reduce the consumption of aluminum pipe and copper pipe, so on the one hand reduce national valuable source and waste, on the other hand reduce using the present invention
The cost of manufactured product, so as to improve the competitiveness of product.Present configuration is simple, reasonable, and processing and manufacturing is easy.
Description of the drawings
Fig. 1：The structural representation of the embodiment of the present invention one；
Fig. 2：The structural representation of the embodiment of the present invention two.
In figure：Copper pipe 1, tooth rib 1.1, fin 1.2, recessed 1.3, aluminum pipe 2, shallow slot 2.1.
Specific embodiment
Below by embodiment, and accompanying drawing is combined, technical scheme is described in further detail.
Embodiment one：
As shown in figure 1, the present invention includes copper pipe 1 and aluminum pipe 2, the outer wall of copper pipe 1 is tight by the inwall of tube expansion operation and aluminum pipe 2
Laminating；The outer wall of aluminum pipe 2 is suppressed with the shallow slot 2.1 and some screw thread shallow slots of some trends and the diameter parallel of two pipes, this
Sample can improve the contact area of aluminum pipe outer surface and air, so as to improve the service behaviour of heat exchanger tube.And in the outer wall pressure of aluminum pipe
While making shallow slot and unshowned screw thread shallow slot, the inwall of aluminum pipe can simultaneously protrude into the outer layer of copper pipe, in the outer layer of copper pipe
Corresponding shallow slot and screw thread shallow slot are formed, so as to improve the contact area of aluminum pipe and copper pipe, and then the heat of copper pipe and aluminum pipe is improved
Switching performance, the outer wall of aluminum pipe 2 can then improve the heat exchange of heat exchanger tube and the external world.Preferably, the cross section of shallow slot 2.1 is circle
Arc, oval or trapezoidal one kind.It should be noted that circular arc, oval or trapezoidal and aluminum pipe outer surface are fillets
Excessively, two trapezoidal waists and a bottom are also round-corner transition, and to prevent stress concentration, and then it is safe to improve using for heat exchanger tube
Property and service life, the present embodiment, the cross section of shallow slot 2.1 is circular arc, and central angle is 90 °.And screw thread shallow slot is transversal
Face is then triangle, and the equal round-corner transition in three angles.Wherein screw thread shallow slot can be carried out during tube expansion or after tube expansion, screw thread
The number of shallow slot is the half of the about number of shallow slot 2.1.
The present embodiment, the inwall of copper pipe 1 is circumferentially laid with some tooth ribs 1.1, and the cross section of tooth rib 1.1 is trapezoidal or square
Shape.The cross section of the present embodiment tooth rib 1.1 is preferably trapezoidal, and the trend of tooth rib 1.1 is identical with the axial direction of copper pipe 1, further,
The middle part recessed 1.3 of the top surface of tooth rib 1.1, recessed 1.3 cross section described in the present embodiment is triangle.Additionally, shallow slot 2.1
Number is identical with the number of tooth rib 1.1, aligned in position, to be better protected from being gone wrong in tube expansion.
Embodiment two：
Embodiment two is also to be provided with cross section on the top surface of the tooth rib before tube expansion with the difference of embodiment one for triangle
It is recessed, but in embodiment one, there be little Xu distances the top on the both sides of triangle and the top of tooth rib.And in embodiment two,
The top margin of triangle and the top of tooth rib constitute a little angle, and during tube expansion, the both sides of triangle can open shape to both sides
Into fin, that is, the tooth rib 1.1 can open fin 1.2 away from the part of aluminum pipe to both sides extension.
Embodiment three：
Embodiment three is with the difference of embodiment one, and in embodiment three, the tooth rib 1.1 is spiral trend, and helical angle is big
In 0 °, less than or equal to 60 °, the angle of the present embodiment helical angle is 30 °, in addition the shallow slot 2.1 as embodiment one of embodiment three
Number it is identical with the number of tooth rib 1.1, but position is arbitrarily, and the number of spiral shallow slot is about 1/2nd of shallow slot number.
Example IV：
Example IV is also to be provided with horizontal stroke on the top surface of tooth rib described in the present embodiment before tube expansion with the difference of embodiment three
Section is recessed for triangle, but the both sides of triangle and the respective side edge of tooth rib constitute a little angle, during tube expansion, three
Angular both sides can open to both sides and form fin, that is, the tooth rib 1.1 can extend away from the part of aluminum pipe to both sides
Open fin 1.2.
The specific embodiment of the above is only the present invention preferably embodiment, not limits the concrete of the present invention with this
Practical range.In fact, some equivalent changes can also be made according to shape of the present invention, structure and purpose of design.
Therefore, some equivalence changes done by all shapes in accordance with the present invention, structure and purpose of design ought to be all contained in this
In the protection domain of invention, namely these equivalence changes all should be protected by the present invention.
Claims (10)
1. a kind of heat exchanger tube, including copper pipe（1）And aluminum pipe（2）, copper pipe（1）Outer wall by tube expansion operation and aluminum pipe（2）It is interior
Wall is brought into close contact；It is characterized in that：Aluminum pipe（2）Outer wall be suppressed with the shallow slots of some trends and the diameter parallel of two pipes（2.1）, aluminum
Pipe（2）Inwall protrude into copper pipe（1）Outer wall, copper pipe（1）Inwall be circumferentially laid with some cross sections for trapezoidal or rectangle
Tooth rib（1.1）.
2. heat exchanger tube according to claim 1, is characterized in that：Aluminum pipe（2）Outer wall also rolled some screw thread shallow slots,
Correspondingly protrude into the inner thread shape of aluminum pipe the outer wall of copper pipe.
3. heat exchanger tube according to claim 1, is characterized in that：Shallow slot（2.1）Cross section be circular arc.
4. heat exchanger tube according to claim 1, is characterized in that：Shallow slot（2.1）Cross section for ellipse.
5. heat exchanger tube according to claim 1, is characterized in that：Shallow slot（2.1）Cross section for trapezoidal.
6. heat exchanger tube according to claim 1, is characterized in that：The tooth rib（1.1）The middle part of top surface is recessed（1.3）.
7. the heat exchanger tube according to claim 1 or 2 or 3 or 4 or 5 or 6, is characterized in that：The tooth rib（1.1）Trend and
Copper pipe（1）Axial direction it is identical.
8. heat exchanger tube according to claim 7, is characterized in that：The tooth rib（1.1）Prolong to both sides away from the part of aluminum pipe
Fin is outputed in extension（1.2）.
9. the heat exchanger tube according to claim 1 or 2 or 3 or 4 or 5 or 6, is characterized in that：The tooth rib（1.1）Walk for spiral
To helical angle is more than 0 °, less than or equal to 60 °.
10. heat exchanger tube according to claim 9, is characterized in that：The tooth rib（1.1）Prolong to both sides away from the part of aluminum pipe
Fin is outputed in extension（1.2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005906.8A CN106679492A (en) | 2016-11-15 | 2016-11-15 | Heat exchange pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005906.8A CN106679492A (en) | 2016-11-15 | 2016-11-15 | Heat exchange pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106679492A true CN106679492A (en) | 2017-05-17 |
Family
ID=58840263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611005906.8A Pending CN106679492A (en) | 2016-11-15 | 2016-11-15 | Heat exchange pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106679492A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220394A (en) * | 2019-05-24 | 2019-09-10 | 宁波方太厨具有限公司 | High-efficiency condensation heat exchanger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB415609A (en) * | 1932-10-28 | 1934-08-30 | British Aluminium Co Ltd | Improvements in or relating to heat-interchanger tubes |
| FR1487080A (en) * | 1966-07-20 | 1967-06-30 | Howell & Company Ltd | Manufacturing process of composite metal tubes |
| JPS58173043A (en) * | 1982-04-01 | 1983-10-11 | Toshiba Corp | Manufacture of heat exchanger |
| CN2685805Y (en) * | 2004-03-09 | 2005-03-16 | 海亮集团浙江铜加工研究所有限公司 | Inserting internal screw thread copper pipe |
| CN1804535A (en) * | 2005-12-20 | 2006-07-19 | 金龙精密铜管集团股份有限公司 | Heat transfer pipe with internal threads |
| CN204142073U (en) * | 2014-07-30 | 2015-02-04 | 天津塔峰恒泰制冷有限公司 | Double-deck heat exchanger tube |
-
2016
- 2016-11-15 CN CN201611005906.8A patent/CN106679492A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB415609A (en) * | 1932-10-28 | 1934-08-30 | British Aluminium Co Ltd | Improvements in or relating to heat-interchanger tubes |
| FR1487080A (en) * | 1966-07-20 | 1967-06-30 | Howell & Company Ltd | Manufacturing process of composite metal tubes |
| JPS58173043A (en) * | 1982-04-01 | 1983-10-11 | Toshiba Corp | Manufacture of heat exchanger |
| CN2685805Y (en) * | 2004-03-09 | 2005-03-16 | 海亮集团浙江铜加工研究所有限公司 | Inserting internal screw thread copper pipe |
| CN1804535A (en) * | 2005-12-20 | 2006-07-19 | 金龙精密铜管集团股份有限公司 | Heat transfer pipe with internal threads |
| CN204142073U (en) * | 2014-07-30 | 2015-02-04 | 天津塔峰恒泰制冷有限公司 | Double-deck heat exchanger tube |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220394A (en) * | 2019-05-24 | 2019-09-10 | 宁波方太厨具有限公司 | High-efficiency condensation heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |