CN206222994U - Anti- tube expansion crumple type inner screw thread copper pipe structure - Google Patents
Anti- tube expansion crumple type inner screw thread copper pipe structure Download PDFInfo
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- CN206222994U CN206222994U CN201621232077.2U CN201621232077U CN206222994U CN 206222994 U CN206222994 U CN 206222994U CN 201621232077 U CN201621232077 U CN 201621232077U CN 206222994 U CN206222994 U CN 206222994U
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- copper pipe
- rib
- main tooth
- deformation
- pipe body
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 121
- 239000010949 copper Substances 0.000 title claims abstract description 121
- 230000000930 thermomechanical effect Effects 0.000 claims description 18
- 239000003507 refrigerant Substances 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 5
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 8
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 5
- 230000002708 enhancing effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000013475 authorization Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model is related to heat-transfer pipe technical field, disclose a kind of anti-tube expansion crumple type inner screw thread copper pipe structure, including copper pipe body, the inwall of the copper pipe body is uniformly provided with main tooth rib in spiral distribution, the top surface of the main tooth rib forms deformation guiding rib to the normal side of main tooth rib, the top of the deformation guiding rib is located at the same side of the normal of main tooth rib, face on the deformation guiding rib away from normal is flexure plane, on deformation guiding rib near the face of normal be curved guide face, at the arbitrary cross section of copper pipe body, the normal parallel of described flexure plane and corresponding main tooth rib, curved guide face is the cambered surface intersected with the normal of the main tooth rib of correspondence.When this kind of copper pipe is connected with fin, in the connecting hole of core bar insertion fin and tube expansion is carried out by core bar, deformation guiding rib can orient deformation, prevent main tooth rib top to be pressurized and crumple, while strengthening refrigerant turbulent flow, the flow-disturbing effect at copper pipe inwall.
Description
Technical field
The utility model is related to heat-transfer pipe technical field, more particularly to a kind of anti-tube expansion crumple type inner screw thread copper pipe structure.
Background technology
Internal thread copper is generally upgraded to from light pipe in heat-transfer pipe technical field as the heat-transfer pipe inside air-conditioning using copper pipe
Pipe, is a big technological innovation, and the performance for greatly improve air conditioner refrigerating, heating, current inner screw thread copper pipe is typically all single
One helicla flute or helical tooth, also has many documents or patent to disclose the helical tooth of different cross section shape, for example, have M shapes, Y
Shape, trapezoidal, semi-circular teeth, variously-shaped tooth form are provided to increase heat transfer surface area.But heat transmission copper pipe actually makes
During, it usually needs used cooperatively with the fin on radiator, it is therefore desirable to which copper pipe is inserted into the connection on fin
Kong Zhong, in order to ensure the heat transfer between copper pipe and fin, it is necessary to carry out tube expansion during core bar is inserted into copper pipe endoporus, so that
Obtain the outer wall expansion of copper pipe so that the outer wall of copper pipe is fitted with the complete gapless of connecting hole inwall of fin, due to copper pipe
There is screw thread on inwall（Tooth bar or tooth rib）, can cause to be squeezed and crumple at the top of tooth rib during core bar extruding inwall, tooth rib
Height can reduce, and the surface area of tooth rib can reduce, so as to heat transfer surface area can be reduced；Tooth rib top can not advise to both sides simultaneously
Then extend, cause medium to increase in the resistance of copper Bottomhole pressure.
For example：Chinese patent Authorization Notice No. CN202393281U, authorized announcement date August in 2012 22 days, discloses one
Plant inner screw thread copper pipe；And for example Chinese patent Authorization Notice No. CN204535508U, authorized announcement date August in 2015 5 days, discloses
A kind of inner screw thread copper pipe for adapting to high viscosity refrigerant.Current all of female screw heat-transfer pipe exists and burst after internal thread is squeezed
The problem of contracting, has a strong impact on the heat transference efficiency of copper pipe, improves media flow resistance.
Utility model content
The utility model is in order to overcome asking for copper pipe of the prior art internal thread extruding crumple in actual use
A kind of topic, there is provided high efficient heat exchanging type copper pipe structure, energy directional deformation when the internal thread of this kind of copper pipe is extruded by core bar, will not
Reduce heat exchange area, while the turbulent flow of refrigerant, flow-disturbing in copper pipe can also be improved, the heat exchange between enhancing refrigerant and copper pipe.
To achieve these goals, the utility model is adopted the following technical scheme that：
A kind of anti-tube expansion crumple type inner screw thread copper pipe structure, including copper pipe body, it is characterized in that, the copper pipe body it is interior
Wall is uniformly provided with main tooth rib in spiral distribution, and the top surface of the main tooth rib extends to form deformation and lead to the normal side of main tooth rib
To rib, the top of the deformation guiding rib is located at the same side of the normal of main tooth rib, away from normal on the deformation guiding rib
Face is flexure plane, on deformation guiding rib near the face of normal be curved guide face, it is described at the arbitrary cross section of copper pipe body
The normal parallel of flexure plane and corresponding main tooth rib, curved guide face is the cambered surface intersected with the normal of the main tooth rib of correspondence.
Copper pipe insertion fin on connecting hole in, by core bar extrude copper pipe inwall when, it is ensured that copper pipe outer be connected
The inwall in hole is fitted completely, and the deformation guiding rib on main tooth rib reaches orientation along curved guide towards flexure plane curving
The effect of deformation is controlled, end crumple by radial pressure of main tooth rib is prevented, after the orientation deformation of deformation guiding rib not only not
Heat exchange area can be reduced, and the inclination of deformation guiding rib can construct more complicated construction, meeting in copper pipe body inwall
Turbulent flow, the flow-disturbing for further promoting refrigerant to occur at main tooth rib, the heat exchange between enhancing refrigerant gas phase, liquid phase, while increasing
Strong heat exchange between refrigerant and copper pipe body.
Preferably, the adjacent two deformation guiding rib axial symmetry distribution on copper pipe body inwall.Two adjacent shapes
Become and can bend deformation to different directions when guiding rib is extruded by core bar, stability is more preferable；Simultaneously two neighboring main tooth rib it
Between the shape in space that surrounds, openings of sizes have differences so that resistance of the refrigerant between two neighboring space is different,
The turbulent flow effect of refrigerant is further enhanced, refrigerant heat exchanger effectiveness is improved.
Preferably, the position being located between the main tooth rib of arbitrary neighborhood two on the inwall of copper pipe body is equipped with support
Rib, the height of the ribs more than main tooth rib height, the height of the ribs less than deformation guiding rib apart from top away from
From the height of copper pipe body inwall.When core bar is extruded, deformation guiding rib priority bending, deformation connect when core bar surface with ribs
When touching, core bar is supported the effect of rib so that copper pipe outer is expanded, and ribs are used to limit the largest deformation of deformation guiding rib
Amount.
Preferably, the cross section of the ribs is in isosceles trapezoid, the top surface side of the ribs stretches out shape
Into double thermo mechanical guiding rib, described double thermo mechanical guiding rib is less than deformation guiding rib distance apart from the height of copper pipe body inwall
The height of copper pipe body inwall.After the bending of deformation guiding rib, core bar extruding double thermo mechanical guiding rib, double thermo mechanical guiding rib continues
Bending Deformation, so as to construct more complicated copper pipe interior wall construction, the turbulent flow and flow-disturbing of enhancing refrigerant strengthen refrigerant and copper pipe
Heat exchange between inwall.
Preferably, the top surface opposite side of the ribs stretches out to form the spacing fin of deformation, the deformation is spacing
Fin is less than height of the deformation guiding rib apart from copper pipe body inwall apart from the height of copper pipe body inwall.Spacing fin is used to limit
Determine and the largest deformation amount of level deformation guiding rib；Simultaneously copper pipe bending when, ribs can bear bending place pulling force and
Pressure, prevents pulling force, pressure damage deformation guiding rib and the double thermo mechanical guiding rib of copper pipe bending place.
Preferably, the double thermo mechanical guiding rib axial symmetry distribution in two neighboring ribs.
Preferably, the cross section semicircular in shape of the spacing fin of described deformation.
Therefore, the utility model has the advantages that：（1）Deformation guiding rib in copper pipe body is extruded by core bar
When can directional deformation, so as to prevent main tooth rib crumple, the heat exchange area of copper pipe body inwall will not be reduced；（2）Deformation is oriented to
Rib, the orientation deformation energy of double thermo mechanical guiding rib effectively change the structure of copper pipe inwall so that the construction of copper pipe inwall is more multiple
It is miscellaneous, refrigerant can be effectively promoted turbulent flow, flow-disturbing are formed at copper pipe inwall, improve heat exchange；（3）Two neighboring deformation is oriented to
Rib, the distribution of double thermo mechanical guiding rib axial symmetry, so as to cause spatial form between main tooth rib and ribs, openings of sizes all to be deposited
In difference, the species diversity causes refrigerant different in the resistance of copper pipe inwall diverse location, strong so as to be produced at copper pipe inwall
Flow-disturbing, further enhance the heat exchange between refrigerant and copper pipe.
Brief description of the drawings
Fig. 1 is the structural representation for applying example 1.
Fig. 2 is the close-up schematic view of embodiment 1.
Fig. 3 is the close-up schematic view of embodiment 2.
Fig. 4 is the close-up schematic view of embodiment 3.
Fig. 5 is the close-up schematic view of embodiment 4.
Fig. 6 be embodiment 4 in be subject to core bar tube expansion after state diagram.
In figure：Copper pipe body 1, main tooth rib 2, normal 3, deformation guiding rib 4, flexure plane 40, curved guide face 41, ribs
5th, the spacing fin 51 of double thermo mechanical guiding rib 50, deformation, groove 6.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and detailed description：
Embodiment 1：A kind of anti-tube expansion crumple type inner screw thread copper pipe structure as depicted in figs. 1 and 2, including copper pipe body 1,
The inwall of copper pipe body is uniformly provided with main tooth rib 2 in spiral distribution, and the top surface of main tooth rib extends to the side of normal 3 of main tooth rib
Deformation guiding rib 4 is formed, the top of deformation guiding rib is located at the same side of the normal of main tooth rib, away from normal on deformation guiding rib
Face be flexure plane 40, on deformation guiding rib near the face of normal be curved guide face 41, at the arbitrary cross section of copper pipe body,
The normal parallel of flexure plane and corresponding main tooth rib, curved guide face is the cambered surface intersected with the normal of the main tooth rib of correspondence；Main tooth
The height of teeth top of rib is 0.55 apart from the ratio of distances constant of copper pipe body inwall with deformation guiding rib.
When copper pipe in the present embodiment is made heat exchanger and uses, in the connecting hole of copper pipe insertion fin, squeezed by core bar
Pressure copper pipe inwall so that copper pipe outer is brought into close contact with connecting hole inwall, in core bar extrusion process, the deformation on main tooth rib is oriented to
Rib reaches the effect of oriented control deformation along curved guide towards flexure plane curving, prevents the end of main tooth rib to be subject to
Radial pressure and crumple, will not only reduce heat exchange area after the orientation deformation of deformation guiding rib, and deformation guiding rib inclines
More complicated construction tiltedly can be constructed in copper pipe body inwall, can further promote that refrigerant occurs at main tooth rib it is turbulent,
Flow-disturbing, the heat exchange between enhancing refrigerant gas phase, liquid phase, while strengthening the heat exchange between refrigerant and copper pipe body.
Embodiment 2：A kind of anti-tube expansion crumple type inner screw thread copper pipe structure as shown in Figure 3, including copper pipe body 1, copper pipe
The inwall of body is uniformly provided with main tooth rib 2 in spiral distribution, and the top surface of main tooth rib extends to be formed to the side of normal 3 of main tooth rib
Deformation guiding rib 4, the top of deformation guiding rib is located at the same side of the normal of main tooth rib, away from the face of normal on deformation guiding rib
Be flexure plane 40, on deformation guiding rib near the face of normal be curved guide face 41, at the arbitrary cross section of copper pipe body, bending
The normal parallel of face and corresponding main tooth rib, curved guide face is the cambered surface intersected with the normal of the main tooth rib of correspondence, main tooth rib
Height of teeth top is 0.70 apart from the ratio of distances constant of copper pipe body inwall with deformation guiding rib；Adjacent two on the inwall of copper pipe body 1
The individual axial symmetry of deformation guiding rib 4 distribution.
Embodiment 3：A kind of anti-tube expansion crumple type inner screw thread copper pipe structure as shown in Figure 4, including copper pipe body 1, copper pipe
The inwall of body is uniformly provided with main tooth rib 2 in spiral distribution, and the top surface of main tooth rib extends to be formed to the side of normal 3 of main tooth rib
Deformation guiding rib 4, the top of deformation guiding rib is located at the same side of the normal of main tooth rib, away from the face of normal on deformation guiding rib
Be flexure plane 40, on deformation guiding rib near the face of normal be curved guide face 41, at the arbitrary cross section of copper pipe body, bending
The normal parallel of face and corresponding main tooth rib, curved guide face is the cambered surface intersected with the normal of the main tooth rib of correspondence, main tooth rib
Height of teeth top is 0.6 apart from the ratio of distances constant of copper pipe body inwall with deformation guiding rib；
The position being located between the main tooth rib of arbitrary neighborhood two on the inwall of copper pipe body is equipped with ribs 5, ribs
Height of the height more than main tooth rib, the height of ribs less than deformation guiding rib apart from distance from top copper pipe body inwall height
Degree；The cross section of ribs is in isosceles trapezoid, and the top surface side of ribs stretches out to form double thermo mechanical guiding rib 50, two grades
Deformation guiding rib is less than height of the deformation guiding rib apart from copper pipe body inwall, ribs 5 apart from the height of copper pipe body inwall
Top surface opposite side stretch out to form the spacing fin 51 of deformation, the cross section semicircular in shape of the spacing fin of deformation, deformation is spacing
Fin is less than height of the deformation guiding rib apart from copper pipe body inwall apart from the height of copper pipe body inwall.
Embodiment 4：A kind of anti-tube expansion crumple type inner screw thread copper pipe structure as shown in Figure 5, including copper pipe body 1, copper pipe
The inwall of body is uniformly provided with main tooth rib 2 in spiral distribution, and the top surface of main tooth rib forms deformation to the side of normal 3 of main tooth rib
Guiding rib 4, the top of deformation guiding rib is located at the same side of the normal of main tooth rib, and the face on deformation guiding rib away from normal is curved
Curved surface 40, on deformation guiding rib near the face of normal be curved guide face 41, at the arbitrary cross section of copper pipe body, flexure plane with
The normal parallel of corresponding main tooth rib, curved guide face is the cambered surface intersected with the normal of the main tooth rib of correspondence, the tooth top of main tooth rib
High is 0.65 apart from the ratio of distances constant of copper pipe body inwall with deformation guiding rib；
The position being located between the main tooth rib of arbitrary neighborhood two on the inwall of copper pipe body is equipped with ribs 5, ribs
Height of the height more than main tooth rib, the height of ribs less than deformation guiding rib apart from distance from top copper pipe body inwall height
Degree；The cross section of ribs is in isosceles trapezoid, and the top surface side of ribs stretches out to form double thermo mechanical guiding rib 50, two grades
Deformation guiding rib is less than height of the deformation guiding rib apart from copper pipe body inwall, ribs 5 apart from the height of copper pipe body inwall
Top surface opposite side stretch out to form the spacing fin 51 of deformation, the cross section semicircular in shape of the spacing fin of deformation, deformation is spacing
Fin is less than height of the deformation guiding rib apart from copper pipe body inwall apart from the height of copper pipe body inwall.
The axial symmetry of adjacent two deformation guiding rib 4 distribution on the inwall of copper pipe body 1, in two neighboring ribs 5
The axial symmetry of double thermo mechanical guiding rib 50 is distributed；The position between adjacent main tooth rib and ribs is located on the inwall of copper pipe body
It is provided with groove 6, the cross section semicircular in shape of the groove.
In the present embodiment, as shown in fig. 6, when the inwall of copper pipe body is subject to core bar amount of compression larger, deformation guiding rib
Generation orients deformation；If core bar external diameter is larger, double thermo mechanical guiding rib also can synchronously orient deformation during extruding, and deformation is spacing
Fin is used to limit the largest deformation amount of deformation guiding rib, double thermo mechanical guiding rib；Deformation guiding rib, double thermo mechanical guiding rib are determined
To the surface area for hardly reducing copper pipe body inwall after deformation, while the space of complexity can be also built at copper pipe inwall,
Spatial form, A/F between two neighboring main tooth rib, ribs all have differences, so that effectively enhancing refrigerant is in copper
Strong flow-disturbing, turbulent flow is produced inside pipe wall, is greatly enhanced between refrigerant, the heat transference efficiency between refrigerant and copper pipe.
Claims (7)
1. a kind of anti-tube expansion crumple type inner screw thread copper pipe structure, including copper pipe body, it is characterized in that, the inwall of the copper pipe body
Main tooth rib in spiral distribution is uniformly provided with, the top surface of the main tooth rib extends to form deformation guiding to the normal side of main tooth rib
Rib, the top of the deformation guiding rib is located at the same side of the normal of main tooth rib, away from the face of normal on the deformation guiding rib
Be flexure plane, on deformation guiding rib near the face of normal be curved guide face, at the arbitrary cross section of copper pipe body, described is curved
The normal parallel of curved surface and corresponding main tooth rib, curved guide face is the cambered surface intersected with the normal of the main tooth rib of correspondence.
2. anti-tube expansion crumple type inner screw thread copper pipe structure according to claim 1, it is characterized in that, on copper pipe body inwall
Adjacent two deformation guiding rib axial symmetry distribution.
3. according to claim 1 or described anti-tube expansion crumple type inner screw thread copper pipe structure, it is characterized in that, the inwall of copper pipe body
The upper position between the main tooth rib of arbitrary neighborhood two is equipped with ribs, the height of the height more than main tooth rib of the ribs
Degree, the height of the ribs is less than height of the deformation guiding rib apart from distance from top copper pipe body inwall.
4. anti-tube expansion crumple type inner screw thread copper pipe structure according to claim 3, it is characterized in that, the ribs it is transversal
Face is in isosceles trapezoid, and the top surface side of the ribs stretches out to form double thermo mechanical guiding rib, and described double thermo mechanical is led
To rib height of the deformation guiding rib apart from copper pipe body inwall is less than apart from the height of copper pipe body inwall.
5. anti-tube expansion crumple type inner screw thread copper pipe structure according to claim 4, it is characterized in that, the top surface of the ribs
Opposite side stretches out to form the spacing fin of deformation, and the spacing fin of deformation is less than deformation apart from the height of copper pipe body inwall
Height of the guiding rib apart from copper pipe body inwall.
6. anti-tube expansion crumple type inner screw thread copper pipe structure according to claim 5, it is characterized in that, in two neighboring ribs
Double thermo mechanical guiding rib axial symmetry distribution.
7. anti-tube expansion crumple type inner screw thread copper pipe structure according to claim 5, it is characterized in that, described deformation limit convex
The cross section semicircular in shape of rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621232077.2U CN206222994U (en) | 2016-11-17 | 2016-11-17 | Anti- tube expansion crumple type inner screw thread copper pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621232077.2U CN206222994U (en) | 2016-11-17 | 2016-11-17 | Anti- tube expansion crumple type inner screw thread copper pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206222994U true CN206222994U (en) | 2017-06-06 |
Family
ID=58792697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621232077.2U Expired - Fee Related CN206222994U (en) | 2016-11-17 | 2016-11-17 | Anti- tube expansion crumple type inner screw thread copper pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206222994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767098A (en) * | 2016-11-17 | 2017-05-31 | 浙江耐乐铜业有限公司 | A kind of high efficient heat exchanging type copper pipe structure |
-
2016
- 2016-11-17 CN CN201621232077.2U patent/CN206222994U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767098A (en) * | 2016-11-17 | 2017-05-31 | 浙江耐乐铜业有限公司 | A kind of high efficient heat exchanging type copper pipe structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |