CN203550748U - Heat transfer tube assembly and heat exchanger with same - Google Patents
Heat transfer tube assembly and heat exchanger with same Download PDFInfo
- Publication number
- CN203550748U CN203550748U CN201320689758.1U CN201320689758U CN203550748U CN 203550748 U CN203550748 U CN 203550748U CN 201320689758 U CN201320689758 U CN 201320689758U CN 203550748 U CN203550748 U CN 203550748U
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- 239000012530 fluid Substances 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 10
- 238000003825 pressing Methods 0.000 description 5
- 230000003416 augmentation Effects 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a heat transfer tube assembly and a heat exchanger with the heat transfer tube assembly. The heat exchange tube assembly comprises a tube body, an interpolating spring wire and an interpolating link, wherein the interpolating spring wire is arranged in the tube body, attached to the inner wall of the tube body and arranged on the outer side of the interpolating link. The heat exchanger comprises the heat transfer assembly. The interpolating spring wire damages a flow boundary layer which is attached to a near wall, fluid forms weak vortexes on the near wall, and therefore heat resistance of fluid of the wall is reduced; the interpolating link increases the flow speed and the disturbance degree of flow on the near wall and promotes fluid to rotate, the fluid and the vortexes generated on the near wall by the spring wire impact and are mixed again when fluid flows to the tube wall from the tube center, the more intense and effective disturbance effect is generated on the near wall, and therefore the heat transfer effect is enhanced.
Description
Technical field
The utility model relates to the interior inserted component field of augmentation of heat transfer in Tube Sheet of Heat Exchanger, especially, relates to a kind of heat-transfer pipe assembly and has its heat exchanger.
Background technology
In recent years, the energy and Master Cost constantly increase, and impel people to continually develop new and effective heat exchanger to satisfy the demand.In order to improve the heat exchange efficiency of heat exchanger, pipe interpolation thing is the method for augmentation of heat transfer in a kind of convenient, brief and effective pipe.At present, more common interpolation thing has: spring wire (taenidium), tie, lap-ups silk, slip, cross disc, ladder etc.And for industrialized mass and use, due to condition restriction such as manufacture craft, costs, only have spring wire and tie more applicable.No matter other pipe interpolation thing is from manufacture craft or is made into originally, be all not so good as spring wire and tie.Therefore spring wire and tie have application comparatively widely at heat exchanger especially shell and tube exchanger.But, no matter be spring wire or tie, under certain flox condition, its augmentation of heat transfer effect is still limited.
Utility model content
The heat exchanger that the utility model object is to provide a kind of heat-transfer pipe assembly and has it, to solve the poor technical problem of heat-transfer effect of existing interpolation thing.
For achieving the above object, the utility model provides a kind of heat-transfer pipe assembly, comprises body; Interpolation spring wire, is arranged in body and fits with inboard wall of tube body; Interpolation tie, interpolation spring wire is arranged on the outside of interpolation twisted strip.
Further, interpolation spring wire has the first pitch that Reynolds number is less than at 2000 o'clock, and the scope of the first pitch is 3 to 20mm.
Further, 1/2nd of interpolation tie pitch is P2, and the diameter of body is D, 1.5≤P2/D≤3.
Further, interpolation spring wire has the second pitch that Reynolds number is greater than at 2000 o'clock, and the scope of the second pitch is 20 to 40mm.
Further, 1/2nd of interpolation tie pitch is P2, and the diameter of body is D, 3≤P2/D≤6.
The utility model also provides a kind of heat exchanger, comprises heat-transfer pipe assembly, and heat-transfer pipe assembly is aforesaid heat-transfer pipe assembly.
The utlity model has following beneficial effect:
Interpolation spring wire has destroyed the flow boundary layer of pressing close to wall, and fluid forms fainter eddy current near wall, thereby has reduced the thermal resistance of wall fluid; And interpolation tie has strengthened flowing velocity and the level of disruption of near wall, because interpolation tie impels fluid rotary, therefore fluid will flow to tube wall from tube hub, the eddy current producing near wall place with spring wire again impacts, mixes, near wall place is produced to more strong and effective perturbation action, thereby strengthened heat-transfer effect.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is according to heat-transfer pipe assembly schematic diagram of the present utility model; And
Fig. 2 is that schematic diagram is looked on a left side of Fig. 1.
Reference numeral in accompanying drawing is as follows: 10, body; 20, interpolation spring wire; 30, interpolation spring wire.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1 and Fig. 2, the utility model heat-transfer pipe assembly, comprising: body 10; Interpolation spring wire 20, is arranged in body 10 and fits with body 10 inwalls; Interpolation tie 30, interpolation spring wire 20 is arranged on the outside of interpolation twisted strip 30.From enhanced heat transfer mechanism, interpolation spring wire 20 has destroyed the flow boundary layer of pressing close to wall, and fluid forms fainter eddy current near wall, thereby has reduced the thermal resistance of wall fluid; And for the fluid that has phase transformation, spring wire is close to inside pipe wall face, increased to a certain extent the roughness of wall, be conducive to phase-change heat transfer.But the shortcoming of interpolation spring wire 20 is to make near wall place flow resistance to increase, thereby has reduced near wall place flow velocity; For the fluid that has phase transformation, interpolation spring wire 20 has increased the thickness of pressing close to wall place fluid film.And interpolation tie 30 has strengthened flowing velocity and the level of disruption of near wall, because interpolation tie 30 impels fluid rotary, therefore fluid will flow to tube wall from tube hub, the eddy current producing near wall place with spring wire again impacts, mixes, near wall place is produced to more strong and effective perturbation action, thereby strengthened heat-transfer effect.Utilize the interior enhanced heat transfer mechanism of pipe of spring wire and tie to there is certain complementation, propose the two to combine use, make to manage spring wire or the tie that interior augmentation of heat transfer effect is relatively single, had further lifting.
Referring to Fig. 1, the selection of combined type interpolation thing medi-spring silk 20 of the present utility model and interpolation tie 30 parameters is very important.Conventionally, at Reynolds number, be less than 2000, spring wire pitch P 1 gets 3 to 20mm, and interpolation tie 30 reverses than P2/D and gets 1.5 to 3; At Reynolds number, be greater than 2000, spring wire pitch P 1 gets 20 to 40, and interpolation tie 30 reverses than P2/D and gets 3 to 6.The pitch of interpolation spring wire 20 is less than the pitch of interpolation tie 30.
Referring to Fig. 2, interpolation spring wire 10 string diameter d1 and 30 thick d2 of interpolation tie choose according to caliber, conventionally caliber more little spring silk string diameter 20 and 30 of interpolation ties thick less.Under certain flox condition, under combined type interpolation thing parameter optimal situation of the present utility model, compared with under single spring wire or interpolation tie parameter optimal situation, heat transfer coefficient improves 30% to 50%, and resistance increment is within one times.
Referring to Fig. 1 and Fig. 2, concrete implementation step of the present utility model can be summarized as: (1) is determined the external diameter of interpolation spring wire 20 and the thick d2 of sheet of string diameter d1 and interpolation tie 30 and reversed ratio according to caliber and fluid flow.(2) insert interpolation spring wire 20.In order to guarantee to assemble effect, interpolation spring wire 20 adopts the corresponding spring that compacts, in certain pretension situation, from pipe one end, enter until the other end is removed after pretension spring retraction, spring wire can be close to the inwall of body 10 like this, is conducive to conduct heat.(2) insert interpolation tie 30.Interpolation tie 30 width are less than the certain numerical value of caliber penetrating after interpolation spring wire 20, to guarantee that interpolation tie 30 is easy to insert body.Insert after interpolation tie 30, preferably fixed to the 30 two-end-point solid weldings of interpolation tie.For ease of installing, the bias that interpolation tie 30 is small with respect to body 10 central shafts can be accepted.
The utility model also provides a kind of heat exchanger, comprises heat-transfer pipe assembly, and heat-transfer pipe assembly is aforesaid heat-transfer pipe assembly.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Interpolation spring wire has destroyed the flow boundary layer of pressing close to wall, and fluid forms fainter eddy current near wall, thereby has reduced the thermal resistance of wall fluid; And for the fluid that has phase transformation, spring wire is close to inside pipe wall face, increased to a certain extent the roughness of wall, be conducive to phase-change heat transfer.But the shortcoming of interpolation spring wire is to make near wall place flow resistance to increase, thereby has reduced near wall place flow velocity; For the fluid that has phase transformation, interpolation spring wire has increased the thickness of pressing close to wall place fluid film.And interpolation tie has strengthened flowing velocity and the level of disruption of near wall, because interpolation tie impels fluid rotary, therefore fluid will flow to tube wall from tube hub, the eddy current producing near wall place with spring wire again impacts, mixes, near wall place is produced to more strong and effective perturbation action, thereby strengthened heat-transfer effect.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a heat-transfer pipe assembly, is characterized in that, comprising:
Body (10);
Interpolation spring wire (20), is arranged in described body (10) and fits with described body (10) inwall;
Interpolation tie (30), described interpolation spring wire (20) is arranged on the outside of described interpolation twisted strip (30).
2. heat-transfer pipe assembly according to claim 1, is characterized in that,
Described interpolation spring wire (20) has the first pitch that Reynolds number is less than at 2000 o'clock, and the scope of described the first pitch is 3 to 20mm.
3. heat-transfer pipe assembly according to claim 2, is characterized in that,
1/2nd of described interpolation tie (30) pitch is P2, and the diameter of described body (10) is D, 1.5≤P2/D≤3.
4. heat-transfer pipe assembly according to claim 1, is characterized in that,
Described interpolation spring wire (20) has the second pitch that Reynolds number is greater than at 2000 o'clock, and the scope of described the second pitch is 20 to 40mm.
5. heat-transfer pipe assembly according to claim 4, is characterized in that,
1/2nd of described interpolation tie (30) pitch is P2, and the diameter of described body (10) is D, 3≤P2/D≤6.
6. a heat exchanger, comprises heat-transfer pipe assembly, it is characterized in that, described heat-transfer pipe assembly is the heat-transfer pipe assembly described in any one in claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689758.1U CN203550748U (en) | 2013-11-04 | 2013-11-04 | Heat transfer tube assembly and heat exchanger with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689758.1U CN203550748U (en) | 2013-11-04 | 2013-11-04 | Heat transfer tube assembly and heat exchanger with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550748U true CN203550748U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320689758.1U Expired - Lifetime CN203550748U (en) | 2013-11-04 | 2013-11-04 | Heat transfer tube assembly and heat exchanger with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203550748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890405A (en) * | 2016-05-05 | 2016-08-24 | 无锡科技职业学院 | Double-slot type strengthened pipe type heat exchanger |
| CN112361851A (en) * | 2020-10-28 | 2021-02-12 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Printed circuit board heat exchanger |
-
2013
- 2013-11-04 CN CN201320689758.1U patent/CN203550748U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890405A (en) * | 2016-05-05 | 2016-08-24 | 无锡科技职业学院 | Double-slot type strengthened pipe type heat exchanger |
| CN105890405B (en) * | 2016-05-05 | 2018-02-16 | 无锡科技职业学院 | A kind of dual grooved strengthens tube type heat exchangers |
| CN112361851A (en) * | 2020-10-28 | 2021-02-12 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Printed circuit board heat exchanger |
| CN112361851B (en) * | 2020-10-28 | 2022-05-17 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Printed circuit board heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170913 Address after: 100084, building 9, building 1, Zhongguancun East Road, Beijing, Haidian District, 04-09A Co-patentee after: TIANJIN SINOREFINE AIR CONDITIONING EQUIPMENT CO.,LTD. Patentee after: BEIJING SINOREFINE AIR CONDITIONING TECHNOLOGY Co.,Ltd. Address before: 100084, Sohu cyber building, No. 1, Zhongguancun East Road, Beijing, Haidian District 409A Patentee before: BEIJING SINOREFINE AIR CONDITIONING TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |