CN206222993U - Deformation directional induction formula female screw heat-transfer pipe - Google Patents
Deformation directional induction formula female screw heat-transfer pipe Download PDFInfo
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- CN206222993U CN206222993U CN201621232069.8U CN201621232069U CN206222993U CN 206222993 U CN206222993 U CN 206222993U CN 201621232069 U CN201621232069 U CN 201621232069U CN 206222993 U CN206222993 U CN 206222993U
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- rib
- tooth
- deformation
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- deformation induced
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- 230000006698 induction Effects 0.000 title claims abstract description 24
- 239000003507 refrigerant Substances 0.000 abstract description 11
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005728 strengthening Methods 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 206010010214 Compression fracture Diseases 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001360 synchronised 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 deformation directional induction formula female screw heat-transfer pipe, including heat transfer tube body, the inwall of the heat transfer tube body is uniformly provided with tooth rib I in spiral distribution, the cross section of the tooth rib I is in isosceles trapezoid, the end face center of the tooth rib I is provided with the deformation induced rib being distributed along tooth rib I, described deformation induced rib is integral type structure with tooth rib I, two sides of the deformation induced rib are parallel to each other, the side of the deformation induced rib is 5 ° 12 ° with the angle a of the normal of corresponding teeth rib I, the deformation induced rib is 10 ° 28 ° with the axis angle of heat transfer tube body.When carrying out tube expansion operation after the connecting hole of this kind of heat-transfer pipe insertion fin, deformation induced rib can occur orientation deformation, prevent tooth rib I end capacity compressions and crumple, will not reduce heat exchange area, while strengthening refrigerant turbulent flow, flow-disturbing effect at heat transfer inside pipe wall.
Description
Technical field
The utility model is related to heat-transfer pipe technical field, more particularly to a kind of deformation directional induction formula female screw heat-transfer pipe.
Background technology
Heat-transfer pipe is used to manufacture various heat exchangers, radiator, heat transfer device, in heat-transfer pipe technical field is upgraded to from light pipe
Screwed pipe, is a big technological innovation.Female screw heat-transfer pipe is used in air-conditioning heat exchanger, greatly improves air conditioner refrigerating, heats
Performance, current female screw heat-transfer pipe is typically all single 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, and variously-shaped tooth form is provided to increase
Heat transfer surface area.But heat-transfer pipe during heat-transfer pipe to be inserted the connecting hole on fin in actual use, it is necessary to make
Into radiator, in order to ensure the heat transfer between heat-transfer pipe and fin, it is necessary to carry out tube expansion during core bar is inserted into copper pipe endoporus,
So that the outer wall expansion of heat-transfer pipe so that the outer wall of heat-transfer pipe is fitted with the complete gapless of connecting hole inwall of fin,
Due to having screw thread on the inwall of heat-transfer pipe（Tooth bar or tooth rib）, can cause to be squeezed at the top of tooth rib during core bar extruding inwall and
Crumple, the height of tooth rib can reduce, and the surface area of tooth rib can reduce, so as to heat transfer surface area can be reduced；Simultaneously at the top of tooth rib
Can irregularly extend to both sides, cause medium to increase in the resistance of heat transfer 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
In order to overcome heat-transfer pipe of the prior art in tube expansion operation, its internal screw thread is squeezed the utility model
Crumple and reduce the problem of heat exchange area, there is provided a kind of deformation directional induction formula female screw heat-transfer pipe, this kind of heat-transfer pipe exists
During tube expansion operation, threaded top directional deformation can be induced when its internal thread is extruded by core bar, heat exchange area will not be reduced, together
When can also improve the turbulent flow of refrigerant, flow-disturbing in heat-transfer pipe, the heat exchange between enhancing refrigerant and heat-transfer pipe.
To achieve these goals, the utility model is adopted the following technical scheme that：
A kind of deformation directional induction formula female screw heat-transfer pipe, including heat transfer tube body, the inwall of the heat transfer tube body are equal
The even cross section for being provided with tooth rib I, the tooth rib I in spiral distribution is in isosceles trapezoid, and the end face center of the tooth rib I is provided with
Along the deformation induced rib that tooth rib I is distributed, described deformation induced rib and tooth rib I is integral type structure, the deformation induced rib
Two sides are parallel to each other, and the side of the deformation induced rib is 5 ° -12 °, the shape with the angle a of the normal of corresponding teeth rib I
The axis angle for becoming induction rib with heat transfer tube body is 10 ° -28 °.In the connecting hole of heat-transfer pipe insertion fin, squeezed by core bar
When pressure heat transfer inside pipe wall carries out tube expansion operation, because deformation induced rib width is small compared with tooth rib I, and have with the normal of tooth rib I
Less drift angle, this results in meeting directional curvature when all of deformation induced rib is extruded by core bar, after directional curvature deformation not
But heat exchange area will not be reduced, more complicated construction is constructed in heat-transfer pipe inner body wall on the contrary, can further be promoted cold
Turbulent flow, flow-disturbing that matchmaker occurs at tooth rib I, the deformation induced rib of bending, the heat exchange between enhancing refrigerant gas phase, liquid phase, together
Heat exchange between Shi Zengqiang refrigerants and heat transfer tube body.
Preferably, the ratio between top surface width of the width of the deformation induced rib and tooth rib I is 0.55-0.75, the shape
Become height and the tooth rib I of induction rib tooth it is the ratio between high be 0.7-0.95.By the dimension limitation to deformation induced rib, it is ensured that deformation
Induction rib is subject to the orientation deformation that the pressure of core bar can be stablized when acting on, and deformation induced rib compression fracture can be prevented again, while
There is enough intensity extruding force is passed into heat transfer pipe outer wall again and realize tube expansion operation.
Preferably, being all provided with rib II with teeth between two tooth rib I of arbitrary neighborhood, the tooth of the tooth rib II is tall and big in tooth rib I
Tooth it is high, the tooth height less than deformation induced rib distance from top heat conducting pipe inner body wall high of the tooth rib II.Core bar stretches into biography
After in heat pipe body, due to deformation induced rib highest, therefore deformation induced rib top compressive deformation at first, when deformation induced rib
Bend to tooth rib II it is highly consistent when, the pressure of core bar is born at the top of tooth rib II, so as to prevent deformation induced rib from continuing
Bending, tooth rib II is used to limit the largest deformation amount of deformation induced rib, while can also bear and share the pressure of core bar.
Preferably, the cross section of the tooth rib II is triangle, the tooth of the tooth rib II is high with deformation induced rib top
It is 0.7-0.85 apart from the ratio between heat conducting pipe inner body wall height.
Preferably, the tooth rib II is provided with deformation towards the adjacent deformation induced inclined side of rib at it near top end
It is oriented to breach.When deformation induced rib top bend by pressure to it is identical with the height of teeth top of tooth rib II when, if core bar is relatively large in diameter,
Then may proceed to extrude tooth rib II, the now deformation on tooth rib II is oriented to breach and causes the tooth top of tooth rib II to the same side directing curves
Area, this kind of structure of tooth rib II can bear larger pressure, and tooth top crumple can be prevented again.
Preferably, be located on the inwall of described heat transfer tube body the upper deformation of tooth rib II be oriented to breach place side with it is adjacent
Position between tooth rib I is provided with fin, the cross section semicircular in shape of the fin, the height of the height less than tooth rib I of the fin
Degree.Fin can increase the surface area of heat transfer inside pipe wall；When deformation induced rib bend by pressure, fin can effectively hinder tooth
Rib I produces the inclination and distortion in the same direction with deformation induced rib, and so as to prevent tooth rib I, synchronous deformation causes in the same direction with deformation induced rib
The space of relative closure is formed between tooth rib I and tooth rib II（The space of relative closure is unfavorable for the flowing of refrigerant）, so that it is guaranteed that
After deformation induced ribbed becomes, the space of opposing open is remained in that between tooth rib I and tooth rib II, the flowing and heat beneficial to refrigerant are handed over
Change.
Therefore, the utility model has the advantages that：（1）When heat-transfer pipe body interior is subject to core bar tube expansion, deformation
Induction rib energy directional deformation, therefore heat exchange area will not be reduced during tube expansion；（2）The orientation deformation of deformation induced rib causes heat transfer
The inwall of pipe is more complicated, the turbulent flow of refrigerant, flow-disturbing in heat-transfer pipe can be further improved, between enhancing refrigerant and heat transfer tube body
Heat exchange.
Brief description of the drawings
Fig. 1 is the structural representation for applying example 1.
Fig. 2 is close-up schematic view at A in Fig. 1.
Fig. 3 is the structural representation of embodiment 2.
Fig. 4 is close-up schematic view at B in Fig. 3.
Fig. 5 is the structural representation of embodiment 3.
Fig. 6 is close-up schematic view at C in Fig. 5.
Fig. 7 be embodiment 3 in be subject to core bar tube expansion after local state schematic diagram.
In figure：Heat transfer tube body 1, tooth rib I2, deformation induced rib 3, normal 4, tooth rib II5, deformation are oriented to breach 50, fin
6th, arc groove 7.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and detailed description：
Embodiment 1：A kind of deformation directional induction formula female screw heat-transfer pipe as depicted in figs. 1 and 2, including heat transfer tube body
1, the inwall of the tube body 1 that conducts heat is uniformly provided with tooth rib I2 in spiral distribution, and the cross section of tooth rib I is in isosceles trapezoid, tooth rib I's
End face center is provided with the deformation induced rib 3 being distributed along tooth rib I, and deformation induced rib is integral type structure with tooth rib I, deformation induced
Two sides of rib are parallel to each other, and the side of deformation induced rib is 5 °, deformation induced rib with the angle a of the normal 4 of corresponding teeth rib I
It it is 10 ° with the axis angle of heat transfer tube body；The ratio between the width of deformation induced rib 3 and the top surface width of tooth rib I2 are 0.55, shape
Become height and the tooth rib I of induction rib tooth it is the ratio between high be 0.7；Circle between the both sides lower end of deformation induced rib and the top surface of tooth rib I
Arc is excessively connected.
Embodiment 2：A kind of deformation directional induction formula female screw heat-transfer pipe as shown in Figure 3 and Figure 4, including heat transfer tube body
1, the inwall of the tube body 1 that conducts heat is uniformly provided with tooth rib I2 in spiral distribution, and the cross section of tooth rib I is in isosceles trapezoid, tooth rib I's
End face center is provided with the deformation induced rib 3 being distributed along tooth rib I, and deformation induced rib is integral type structure with tooth rib I, deformation induced
Two sides of rib are parallel to each other, and the side of deformation induced rib is 12 °, deformation induced rib with the angle a of the normal of corresponding teeth rib I
It it is 28 ° with the axis angle of heat transfer tube body；The ratio between the width of deformation induced rib 3 and the top surface width of tooth rib I2 are 0.75, shape
Become height and the tooth rib I of induction rib tooth it is the ratio between high be 0.95；Circle between the both sides lower end of deformation induced rib and the top surface of tooth rib I
Arc is excessively connected；
Rib II5 with teeth is all provided between two tooth rib I of arbitrary neighborhood, the tall and big tooth in tooth rib I of tooth of tooth rib II is high, tooth rib II
The tooth height less than deformation induced rib distance from top heat conducting pipe inner body wall high；The cross section of tooth rib II is triangle, tooth rib
It is 0.7 the ratio between with deformation induced rib distance from top heat conducting pipe inner body wall height that the tooth of II is high.
Embodiment 3：A kind of deformation directional induction formula female screw heat-transfer pipe as shown in Figure 5 and Figure 6, including heat transfer tube body
1, the inwall of the tube body 1 that conducts heat is uniformly provided with tooth rib I2 in spiral distribution, and the cross section of tooth rib I is in isosceles trapezoid, tooth rib I's
End face center is provided with the deformation induced rib 3 being distributed along tooth rib I, and deformation induced rib is integral type structure with tooth rib I, deformation induced
Two sides of rib are parallel to each other, and the side of deformation induced rib is 10 °, deformation induced rib with the angle a of the normal of corresponding teeth rib I
It it is 18 ° with the axis angle of heat transfer tube body；The ratio between the width of deformation induced rib 3 and the top surface width of tooth rib I2 are 0.65, shape
Become height and the tooth rib I of induction rib tooth it is the ratio between high be 0.8；Circle between the both sides lower end of deformation induced rib and the top surface of tooth rib I
Arc is excessively connected；
Rib II5 with teeth is all provided between two tooth rib I of arbitrary neighborhood, the tall and big tooth in tooth rib I of tooth of tooth rib II is high, tooth rib II
The tooth height less than deformation induced rib distance from top heat conducting pipe inner body wall high；The cross section of tooth rib II is triangle, tooth rib
It is 0.85 the ratio between with deformation induced rib distance from top heat conducting pipe inner body wall height that the tooth of II is high；Tooth rib II is at it towards adjacent shape
Become the inclined side of induction rib and be provided with deformation guiding breach 50 near top end, the cross section that deformation is oriented to breach is curved；
Deformation on tooth rib II is located on the inwall of heat transfer tube body 1 and is oriented to the portion between side and adjacent teeth rib I where breach
Position is provided with fin 6, the cross section semicircular in shape of fin, the height of the height less than tooth rib I of fin；The inwall of heat transfer tube body 1
The upper position being oriented between the opposite side of breach and adjacent teeth rib I positioned at deformation on tooth rib II is provided with arc groove 7.
Core bar is needed after in the connecting hole of heat-transfer pipe insertion fin carries out tube expansion operation, such as Fig. 7 institutes after core bar tube expansion
Show, inclined to normal right side when deformation induced rib is acted on by core bar, and due to the left side in heat-transfer pipe inner body wall positioned at tooth rib I
Side is provided with arc groove, can be produced after heat-transfer pipe inner body wall is located at and fin is provided with the right side of tooth rib I, therefore tooth rib I is pressurized to
Left bank, so as to build the space of opposing open between tooth rib I and tooth rib II, beneficial to heat exchange between refrigerant and tube wall；Shape
Integral inclined after change induction rib, tooth rib I deformation to shorten, now tooth rib II is used to bear the pressure effect of core bar, prevents deformation from luring
Guide rib, tooth rib I excessive deformations, play a protective role to deformation induced rib, tooth rib I；If core bar external diameter is larger（Core bar external diameter is deposited
In error, cause bigger than normal）, deformation can be also oriented after tooth rib II compressions.
Claims (6)
1. a kind of deformation directional induction formula female screw heat-transfer pipe, including heat transfer tube body, it is characterized in that, the heat transfer tube body
Inwall is uniformly provided with the cross section of tooth rib I, the tooth rib I in spiral distribution in isosceles trapezoid, the end face center of the tooth rib I
The deformation induced rib being distributed along tooth rib I is provided with, described deformation induced rib and tooth rib I is integral type structure, and the deformation is lured
Two sides of guide rib are parallel to each other, and the side of the deformation induced rib is 5 ° -12 ° with the angle a of the normal of corresponding teeth rib I,
The deformation induced rib is 10 ° -28 ° with the axis angle of heat transfer tube body.
2. deformation directional induction formula female screw heat-transfer pipe according to claim 1, it is characterized in that, the deformation induced rib
The ratio between top surface width of width and tooth rib I is 0.55-0.75, and the ratio between the height of the deformation induced rib is high with the tooth of tooth rib I is
0.7-0.95。
3. deformation directional induction formula female screw heat-transfer pipe according to claim 1, it is characterized in that, two tooth ribs of arbitrary neighborhood
Rib II with teeth is all provided between I, the tall and big tooth in tooth rib I of tooth of the tooth rib II is high, and the tooth of the tooth rib II is high to lure less than deformation
The height of guide rib distance from top heat conducting pipe inner body wall.
4. deformation directional induction formula female screw heat-transfer pipe according to claim 3, it is characterized in that, the tooth rib II's is transversal
Face is triangle, and it is 0.7- the ratio between with deformation induced rib distance from top heat conducting pipe inner body wall height that the tooth of the tooth rib II is high
0.85。
5. the deformation directional induction formula female screw heat-transfer pipe according to claim 3 or 4, it is characterized in that, the tooth rib II exists
It is provided with deformation and is oriented to breach towards the adjacent deformation induced inclined side of rib near top end.
6. deformation directional induction formula female screw heat-transfer pipe according to claim 5, it is characterized in that, described heat transfer tube body
Inwall on be located at the position that the upper deformation of tooth rib II is oriented between breach place side and adjacent teeth rib I and be provided with fin, the fin
Cross section semicircular in shape, the height of the height of the fin less than tooth rib I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621232069.8U CN206222993U (en) | 2016-11-17 | 2016-11-17 | Deformation directional induction formula female screw heat-transfer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621232069.8U CN206222993U (en) | 2016-11-17 | 2016-11-17 | Deformation directional induction formula female screw heat-transfer pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206222993U true CN206222993U (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621232069.8U Expired - Fee Related CN206222993U (en) | 2016-11-17 | 2016-11-17 | Deformation directional induction formula female screw heat-transfer pipe |
Country Status (1)
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| CN (1) | CN206222993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443051A (en) * | 2018-11-20 | 2019-03-08 | 佛山科学技术学院 | A kind of double pipe heat exchanger |
| CN111595044A (en) * | 2020-05-29 | 2020-08-28 | 河南城建学院 | Underground buried efficient heat exchanger for middle-deep geothermal energy |
-
2016
- 2016-11-17 CN CN201621232069.8U patent/CN206222993U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443051A (en) * | 2018-11-20 | 2019-03-08 | 佛山科学技术学院 | A kind of double pipe heat exchanger |
| CN111595044A (en) * | 2020-05-29 | 2020-08-28 | 河南城建学院 | Underground buried efficient heat exchanger for middle-deep geothermal energy |
| CN111595044B (en) * | 2020-05-29 | 2022-02-08 | 河南城建学院 | Underground buried efficient heat exchanger for middle-deep geothermal energy |
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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 |