CN201653223U - Plug type heat exchange pipe capable of adjusting heat exchange performance and pressure reduction - Google Patents
Plug type heat exchange pipe capable of adjusting heat exchange performance and pressure reduction Download PDFInfo
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- CN201653223U CN201653223U CN2010201902753U CN201020190275U CN201653223U CN 201653223 U CN201653223 U CN 201653223U CN 2010201902753 U CN2010201902753 U CN 2010201902753U CN 201020190275 U CN201020190275 U CN 201020190275U CN 201653223 U CN201653223 U CN 201653223U
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Abstract
The utility model discloses a plug type heat exchange pipe capable of adjusting heat exchange performance and pressure reduction, which comprises a pipe and a plug, wherein the plug is arranged in the pipe and comprises a straight section and a spiral section; the straight section is arranged at the inlet section of the pipe; and the spiral section is arranged at the outlet section of the pipe. The plug type heat exchange pipe capable of adjusting heat exchange performance and pressure reduction can combine fluid velocity and heat exchange performance and has optimal comprehensive heat exchange effect.
Description
Technical field
The utility model relates to insert formula heat exchanger tube, relates in particular to the insert formula heat exchanger tube that can regulate heat exchange property and pressure drop.
Background technology
Heat exchanger is widely used in the industrial production such as oil, chemical industry, metallurgy, light industry, pharmacy, the energy as the common processing equipment of heat exchange between a kind of different medium, and the improvement of its performance all can bring tangible energy conservation and consumption reduction effects with raising.The insert technology is a kind of enhanced heat exchange technology of most convenient in the pipe, and twisted strip also is a kind of insert commonly used.After inserting twisted strip in the pipe, the hydraulic diameter of pipe is reduced, the thickness of twisted strip will make mean flow rate increase in the pipe simultaneously, and fluid is forced to produce rotational flow and secondary stream, and this is the motion that a kind of forced vortex and axial flow are formed by stacking, can produce eddy current continuously, tube hub fluid and wall boundary layer fluid are fully mixed, and the attenuated layer laminar sublayer reduces wall temperature, and make the axial speed field homogenising, reach the effect of augmentation of heat transfer.
Present common heat exchanger tube insert, whole insert all adopts spiral helicine twisted strip, the pressure loss was bigger when this can cause fluid to flow through heat exchanger tube, and for heat exchanger except should having good heat exchange property, also must have less fluid flow resistance, and existing insert formula heat exchanger is all paid attention to the raising of heat exchange property, and has ignored the increase of flow resistance, can not accomplish the matched well that heat exchange property is strengthened and flow resistance increases.Simultaneously, existing insert formula heat exchanger tube does not have heat exchange property and pressure drop regulatory function, can not satisfy some needs than low pressure drop with than the special occasions of high heat-exchanging performance, particularly existing process system need be than low pressure drop and the occasion of using than the heat exchanger of high heat-exchanging performance.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of and take into account rate of flow of fluid and heat exchange property, has the heat exchange property regulated of optimal synthesis heat exchange effect and the insert formula heat exchanger tube of pressure drop.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of insert formula heat exchanger tube of regulating heat exchange property and pressure drop comprises body and the insert that places body, and described insert is made up of straight section and spiral section, and described straight section places the entrance of body, and described spiral section places the outlet section of body.
The length of described straight section accounts for 10%～40% of insert length overall.
Compared with prior art, advantage of the present utility model is:
Insert in the insert formula heat exchanger tube of regulating heat exchange property and pressure drop of the present utility model is made up of straight section and spiral section, when fluid flows into body, mobile thermal boundary layer has one to start from scratch and rise to the process that meets at the body center line, entrance at body, its thermal boundary layer is thinner, the local surfaces heat transfer coefficient is higher than fully development section, the straight section of insert is placed the entrance of body, it is thinner to have made full use of entrance section thermal boundary layer, the characteristics that the local surfaces heat transfer coefficient is bigger, the heat exchanger tube pressure drop is increased on the less basis have good heat exchange property, simultaneously, the straight section of insert makes the hydraulic diameter of body reduce, thereby causes the coefficient of heat transfer to increase to some extent, and the pressure loss is also little; Outlet section thermal boundary layer at body is thicker, the spiral section of insert is placed the outlet section of body, make fluid produce a tangential speed component, its flowing velocity increases, especially near body wall place, the fluid that makes wall place shear stress increase, be caused by the secondary conductance mixes enhancing, and the heat exchange effect is enhanced.Insert by two kinds of structure be combined intos of the present utility model can be significantly improved heat exchange property under the less situation of heat exchanger flow resistance increase, and simple in structure, applied range, has very high economic and practical and promotional value.By the straight section of change insert and the length ratio of spiral section, can regulate exchange performance and pressure drop, make the comprehensive heat exchange effect of heat exchanger reach optimum, improve energy utilization rate.Insert formula heat exchange tube structure of regulating heat exchange property and pressure drop of the present utility model is simple, be convenient to make, mounting or dismounting are convenient, production cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of insert in the utility model.
Each label is represented among the figure:
1, body; 2, insert; 21, straight section; 22, spiral section.
The specific embodiment
Fig. 1 and Fig. 2 show a kind of insert formula heat exchanger tube embodiment that regulates heat exchange property and pressure drop of the present utility model, this heat exchanger tube comprises body 1 and insert 2, insert 2 places body 1, insert 2 is made up of straight section 21 and spiral section 22, straight section 21 places the entrance of body 1, and spiral section 22 places the outlet section of body 1.When fluid flows into body 1, mobile thermal boundary layer has one to start from scratch and rise to the process that meets at body 1 center line, entrance at body 1, its thermal boundary layer is thinner, the local surfaces heat transfer coefficient is higher than fully development section, the straight section 21 of insert 2 is placed the entrance of body 1, it is thinner to have made full use of entrance section thermal boundary layer, the characteristics that the local surfaces heat transfer coefficient is bigger, the heat exchanger tube pressure drop is increased on the less basis have good heat exchange property, simultaneously, the straight section 21 of insert 2 makes the hydraulic diameter of body 1 reduce, thereby cause the coefficient of heat transfer to increase to some extent, and the pressure loss is also little; Outlet section thermal boundary layer at body 1 is thicker, the spiral section 22 of insert 2 is placed the outlet section of body 1, make fluid produce a tangential speed component, its flowing velocity increases, especially near body 1 wall place, the fluid that makes wall place shear stress increase, be caused by the secondary conductance mixes enhancing, and the heat exchange effect is enhanced.Adopt the insert 2 of straight section 21 and spiral section 22 these two kinds of structure be combined intos, can increase under the less situation in the heat exchanger flow resistance is significantly improved heat exchange property, and simple in structure, applied range has very high economic and practical and promotional value.The length of straight section 21 accounts for 10%～40% of insert 2 length overalls, be 30% in the present embodiment,, can regulate exchange performance and pressure drop by the straight section 21 of change insert 2 and the length ratio of spiral section 22, make the comprehensive heat exchange effect of heat exchanger reach optimum, improve energy utilization rate.Insert formula heat exchange tube structure of regulating heat exchange property and pressure drop of the present utility model is simple, be convenient to make, mounting or dismounting are convenient, production cost is low.
Above-mentioned is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model.Any those of ordinary skill in the art, under the situation that does not break away from the technical solutions of the utility model scope, all can utilize the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model, all should drop in the scope of technical solutions of the utility model protection any simple modification, equivalent variations and modification that above embodiment did according to the utility model technical spirit.
Claims (2)
1. the insert formula heat exchanger tube that can regulate heat exchange property and pressure drop, comprise body (1) and place the insert (2) of body (1), it is characterized in that: described insert (2) is made up of straight section (21) and spiral section (22), described straight section (21) places the entrance of body (1), and described spiral section (22) places the outlet section of body (1).
2. the insert formula heat exchanger tube of regulating heat exchange property and pressure drop according to claim 1 is characterized in that: the length of described straight section (21) accounts for 10%～40% of insert (2) length overall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201902753U CN201653223U (en) | 2010-05-14 | 2010-05-14 | Plug type heat exchange pipe capable of adjusting heat exchange performance and pressure reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201902753U CN201653223U (en) | 2010-05-14 | 2010-05-14 | Plug type heat exchange pipe capable of adjusting heat exchange performance and pressure reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653223U true CN201653223U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201902753U Expired - Fee Related CN201653223U (en) | 2010-05-14 | 2010-05-14 | Plug type heat exchange pipe capable of adjusting heat exchange performance and pressure reduction |
Country Status (1)
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| CN (1) | CN201653223U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335552A (en) * | 2013-06-28 | 2013-10-02 | 华中科技大学 | Turbulent flow element of convection heat transfer in strengthening pipes |
| CN107024137A (en) * | 2017-04-12 | 2017-08-08 | 华中科技大学 | Wedge-shaped wave insert and use its augmentation of heat transfer pipe |
| CN107623390A (en) * | 2016-07-13 | 2018-01-23 | 中车株洲电力机车研究所有限公司 | A kind of motor with cooling pipe |
| JP2019086180A (en) * | 2017-11-02 | 2019-06-06 | カルソニックカンセイ株式会社 | Double pipe and manufacturing method thereof |
-
2010
- 2010-05-14 CN CN2010201902753U patent/CN201653223U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335552A (en) * | 2013-06-28 | 2013-10-02 | 华中科技大学 | Turbulent flow element of convection heat transfer in strengthening pipes |
| CN103335552B (en) * | 2013-06-28 | 2015-09-09 | 华中科技大学 | The turbulent element of heat convection in a kind of enhanced tube |
| CN107623390A (en) * | 2016-07-13 | 2018-01-23 | 中车株洲电力机车研究所有限公司 | A kind of motor with cooling pipe |
| CN107024137A (en) * | 2017-04-12 | 2017-08-08 | 华中科技大学 | Wedge-shaped wave insert and use its augmentation of heat transfer pipe |
| JP2019086180A (en) * | 2017-11-02 | 2019-06-06 | カルソニックカンセイ株式会社 | Double pipe and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY Effective date: 20121231 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121231 Address after: Hangzhou City, Zhejiang province 310004 City Road (Wen Hui Bridge East) Baiyun Building 2 room 805 China Patentee after: Hangzhou Meibao Kiln Engineering Co., Ltd. Address before: Hangzhou City, Zhejiang province 310004 City Road (Wen Hui Bridge East) Baiyun Building 2 room 805 China Patentee before: Hangzhou Meibao Kiln Engineering Co., Ltd. Patentee before: Changsha University of Sciences and Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20160514 |