CN205090859U - Pyramid fin condenser pipe for double -pipe heat exchanger - Google Patents
Pyramid fin condenser pipe for double -pipe heat exchanger Download PDFInfo
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- CN205090859U CN205090859U CN201520804464.8U CN201520804464U CN205090859U CN 205090859 U CN205090859 U CN 205090859U CN 201520804464 U CN201520804464 U CN 201520804464U CN 205090859 U CN205090859 U CN 205090859U
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Abstract
The utility model discloses a pyramid fin condenser pipe for double -pipe heat exchanger, its inner tube that is used for making bushing type condensation heat exchanger, this condenser pipe include the body, are provided with the prismatic fin of a plurality of row that is the heliciform and arranges on the outer pipe wall of body, wantonly the highly equal imbalance of two adjacent prismatic fins, and in arbitrary two adjacent prismatic fins, highly the prismatic fin of great those row is greater than highly the figure of the prismatic fin of less those row along the circumference round along the figure of circumference round. The utility model discloses this kind of pyramid fin condenser pipe can improve double -pipe heat exchanger's condensation heat exchange efficiency.
Description
Technical field
The utility model relates to a kind of condenser pipe, especially a kind of double-tube heat exchanger pyramid finned condensation pipe.
Background technology
It is simple that double-tube heat exchanger has structure, compact, and heat exchange area such as easily to adjust at the advantage, and small-type refrigeration appliance is used widely as condenser.Generally, the design feature of bushing type condensing heat exchanger is that the tubing coaxial package of two kinds of different caliber size (is commonly called as coaxial heat exchanger) together, and the pipe that diameter is less can be described as interior pipe, and what diameter was larger can be described as outer tube.Flow through in the annulus of refrigerant vapour between two sleeve pipes, and by cooling water in interior pipe, the refrigerant vapour that annular channel flows through is cooled, produce and be deformed into condensate liquid mutually.Chinese patent: propose a kind of coaxial heat exchanger in CN200910217315, comprises coaxially sheathed outer tube and interior pipe, and interior tube body section has the multi-start helical tubes of many parallel spiral groove structures.Chinese patent: propose a kind of double pipe heat exchanger in CN200810232876, comprises outer tube and interior pipe, interior off-position inner helix pipe, and arranges one or more throttlings on inner pipe and disturb flow texture, and throttling disturbing flow device both sides internal thread rotation is on the contrary.Engineers and technicians have carried out double-tube heat exchanger and have carried out multiple improvement, improve the heat exchange property of double-tube heat exchanger.In order to improve double-pipe condenser performance further, the condenser pipe in reply double-tube heat exchanger more improves.
And according to heat transfer theory preliminary experiment, it is found that the heat exchange property of exchange capability of heat much smaller than water of cold-producing medium, therefore when the cold-producing medium that interior pipe flows through water and annulus carries out heat exchange, the coefficient of heat transfer of water side is much larger than the coefficient of heat transfer with the outer cold-producing medium of pipe, the two exchange capability of heat does not match well mutually, and the coefficient of heat transfer between annulus inner refrigerant and tube wall is low, thermal resistance is large, limits the raising of double-tube heat exchanger performance.In order to improve the coefficient of heat transfer between two pipes in annulus between cold-producing medium and inner tubal wall face, needing to increase the heat exchange area of inner tube outer surface and can improve the coefficient of heat transfer between cold-producing medium and internal face.
Utility model content
The utility model object is: for above-mentioned technical problem, proposes a kind of double-tube heat exchanger pyramid finned condensation pipe, and it is managed for making in bushing type condensing heat exchanger, to improve the condensing heat-exchange efficiency of double-tube heat exchanger.
The technical solution of the utility model is: a kind of double-tube heat exchanger pyramid finned condensation pipe, comprises body, and the outer tube wall of this body is provided with the prismatic fin of some row of arranging in the shape of a spiral, the height that arbitrary neighborhood two arranges prismatic fin is all unequal; And in the prismatic fin of two of arbitrary neighborhood row, the highly comparatively large number that arranges a prismatic fin circumferentially circle is greater than highly less that and arranges the number of a prismatic fin circumferentially circle.
The utility model, on the basis of technique scheme, also comprises following preferred version:
Each row prismatic fin height is staggered ordered arrangement.
Each prismatic fin described is uniformly distributed on described body, and the adjacent two prismatic fin bottom portion axial distances being positioned at different lines are 0.3 ~ 1.5mm.
In the prismatic fin of two row of arbitrary neighborhood, that height arranging prismatic fin highly comparatively large is 0.8 ~ 2.2mm, and the highly less height that arranges prismatic fin is 0.5 ~ 1.5mm,
In the prismatic fin of two row of arbitrary neighborhood, the highly comparatively large number that arranges a prismatic fin circumferentially circle arranges a prismatic fin circumferentially number many 1/5 ~ 1/3 enclosed than highly less that.
In the prismatic fin of two row of arbitrary neighborhood, highly comparatively large that arranges prismatic fin number is 5000/m, and the highly less number that arranges prismatic fin is 4000/m.
The top distortion vertically of described prismatic fin forms a bend.
The inner tubal wall of described body is provided with the spirality conduit that some extend layout in the shape of a spiral.
The number of described spirality conduit is 18 ~ 50, and groove depth is 0.2 ~ 0.4mm.
The utility model has the advantages that: the inner tube outer surface that the utility model proposes arranges fin shape and is designed to pyramid fin, pyramid fin distributes in the shape of a spiral at inner tube outer surface, in the annulus of refrigerant vapour between two pipes through fin flow through; The steam changed the outfit in space between inner and outer pipe carries out heat exchange by the cold water flow through in pyramid fin wall and interior pipe, produces condensation.Because aciculiform wing adds area of surface-heat transfer, thus improve condensing heat-exchange effect, because pyramid wing top is cone-shaped, and each aciculiform wing is independently, and condensate flow is unobstructed, and resistance is little, is convenient to discharge opeing, thus improves cooling energy recovery.In addition on the one hand, the diameter of conventional cannula heat exchanger outer tube immobilizes vertically, and the annular channel between two pipes is also constant.Therefore, steam velocity field distribution is wherein even.In order to better improve exchange capability of heat, the utility model pyramid fin is created the height difference often arranged, form one high and one low being staggered of adjacent fins, simultaneously, often row aciculiform wing circumference number is not identical yet, high wing is number 1/5---1/3 more than low wing number circumferentially, then inner tube outer surface formed, just, sparse different fin ranks.When the utility model aciculiform finned tube is placed in outer tube, although outer tube is equal diameter vertically, due to fin height not etc., sparse difference, makes the passage of the annular channel formation rule mechanical periodicity between finned tube and sleeve pipe.When refrigerant vapour flows wherein, constantly change flow direction and speed, make steam flow field become three-dimensional flow field, considerably increase the Turbulent Kinetic of fluid, in being the increase in condensing heat-exchange effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of this double-tube heat exchanger pyramid of the utility model finned condensation pipe, in-pipe flow direction during arrow expression work in figure;
Wherein: 1-body, 2-spirality conduit, the prismatic fin of 3-.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
Fig. 1 shows a specific embodiment of this double-tube heat exchanger pyramid of the utility model finned condensation pipe, and it is managed for making in bushing type condensing heat exchanger.Identical with traditional pyramid finned condensation pipe is, it also comprises body 1, the outer tube wall of this body 1 is provided with the prismatic fin 3 of some row of arranging in the shape of a spiral, the spaced distribution of the prismatic fin of row 3 often in row, the top distortion of prismatic fin 3, in shape of finding fault.
Key improvements of the present utility model is: the height that arbitrary neighborhood two arranges prismatic fin 3 is all unequal.And in the prismatic fin 3 of two of arbitrary neighborhood row, the highly comparatively large number that arranges a prismatic fin 3 circumferentially circle is greater than highly less that and arranges the number of a prismatic fin 3 circumferentially circle.
And prismatic fin 3 height of each row is staggered ordered arrangement in this example, namely the prismatic fin 3 of each row is according to the order distribution of high-low-high-low-Gao-low.
And each prismatic fin 3 is uniformly distributed on described body 1, bottom the adjacent two prismatic fins 3 being positioned at different lines (adjacent two row), axial distance is generally 0.3 ~ 1.5mm.
In this example, the height being in each the prismatic fin 3 in same spiral row is identical, and we also can be set to difference certainly.
In general, in the prismatic fin 3 of two row of arbitrary neighborhood, that height arranging prismatic fin 3 highly comparatively large is preferably 0.8 ~ 2.2mm, and this example is specially 1.5mm; The highly less height that arranges prismatic fin 3 is preferably 0.5 ~ 1.5mm, and this example is specially 0.7mm.
In addition, in the prismatic fin 3 of two row of arbitrary neighborhood, highly comparatively large that arranges a prismatic fin 3 circumferentially number enclosed (so-called " circumferentially the number of a circle ", there is following implication: each fin row of arranging in the shape of a spiral, all be coiled in the outer surface of body 1 and surround into many circles (and off-gauge ring), the number of fins only on a circle is said " circumferentially one circle number ") formed many along a body axially circle) generally arrange a prismatic fin 3 circumferentially number many 1/5 ~ 1/3 enclosed than highly less that.The present embodiment is specially: it is 5000/m that highly comparatively large that arranges prismatic fin 3 number, i.e. the body of each meter Chang Du is provided with 5000 highly larger prismatic fins 3; It is 4000/m that highly less that arranges prismatic fin 3 number, i.e. the body of each meter Chang Du is provided with 4000 highly less prismatic fins 3.
In addition, this example is also provided with the spirality conduit 2 that many bars extend layout in the shape of a spiral on the inner tubal wall of described body 1.The number of these spirality conduits 2 is preferably 18 ~ 50, and the groove depth of spirality conduit 2 is preferably 0.2 ~ 0.4mm.
Claims (9)
1. a double-tube heat exchanger pyramid finned condensation pipe, comprise body (1), the outer tube wall of this body (1) is provided with the prismatic fin of some row (3) of arranging in the shape of a spiral, it is characterized in that: the height that arbitrary neighborhood two arranges prismatic fin (3) is all unequal; And in two of arbitrary neighborhood row prismatic fin (3), the highly comparatively large number that arranges prismatic fin (3) circumferentially circle is greater than highly less that and arranges the number of prismatic fin (3) circumferentially circle.
2. double-tube heat exchanger pyramid finned condensation pipe as claimed in claim 1, is characterized in that: the prismatic fin of each row (3) height is staggered ordered arrangement.
3. double-tube heat exchanger pyramid finned condensation pipe as claimed in claim 2, it is characterized in that: each prismatic fin (3) described is uniformly distributed on described body (1), adjacent two prismatic fin (3) the bottom axial distances being positioned at different lines are 0.3 ~ 1.5mm.
4. double-tube heat exchanger pyramid finned condensation pipe as claimed in claim 1, it is characterized in that: in the two prismatic fin of row (3) of arbitrary neighborhood, that height arranging prismatic fin (3) highly comparatively large is 0.8 ~ 2.2mm, and the highly less height that arranges prismatic fin (3) is 0.5 ~ 1.5mm.
5. double-tube heat exchanger pyramid finned condensation pipe as claimed in claim 1, it is characterized in that: in two row prismatic fin (3) of arbitrary neighborhood, the highly comparatively large number that arranges prismatic fin (3) circumferentially circle arranges prismatic fin (3) circumferentially number many 1/5 ~ 1/3 enclosed than highly less that.
6. double-tube heat exchanger pyramid finned condensation pipe as claimed in claim 5, it is characterized in that: in the two prismatic fin of row (3) of arbitrary neighborhood, highly comparatively large that arranges prismatic fin (3) number is 5000/m, and the highly less number that arranges prismatic fin (3) is 4000/m.
7. double-tube heat exchanger pyramid finned condensation pipe as claimed in claim 1, is characterized in that: the top distortion vertically of described prismatic fin (3) forms a bend.
8. double-tube heat exchanger pyramid finned condensation pipe as claimed in claim 1, is characterized in that: the inner tubal wall of described body (1) is provided with the spirality conduit (2) that some extend layout in the shape of a spiral.
9. double-tube heat exchanger pyramid finned condensation pipe as claimed in claim 8, is characterized in that: the number of described spirality conduit (2) is 18 ~ 50, and groove depth is 0.2 ~ 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804464.8U CN205090859U (en) | 2015-10-16 | 2015-10-16 | Pyramid fin condenser pipe for double -pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804464.8U CN205090859U (en) | 2015-10-16 | 2015-10-16 | Pyramid fin condenser pipe for double -pipe heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN205090859U true CN205090859U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520804464.8U Expired - Fee Related CN205090859U (en) | 2015-10-16 | 2015-10-16 | Pyramid fin condenser pipe for double -pipe heat exchanger |
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| CN (1) | CN205090859U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062976A (en) * | 2017-05-21 | 2017-08-18 | 刘易铭 | A kind of special-shaped heat-exchange tube line structure |
| CN109833718A (en) * | 2019-03-28 | 2019-06-04 | 无锡昌鼎电子有限公司 | A kind of nitrogen recycling reuse means |
| CN113363626A (en) * | 2021-05-19 | 2021-09-07 | 广东省科学院半导体研究所 | Battery and battery phase change heat management system and method |
| CN115247756A (en) * | 2022-06-28 | 2022-10-28 | 北京航天试验技术研究所 | Small-sized alloy hydrogen storage and supply device |
-
2015
- 2015-10-16 CN CN201520804464.8U patent/CN205090859U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062976A (en) * | 2017-05-21 | 2017-08-18 | 刘易铭 | A kind of special-shaped heat-exchange tube line structure |
| CN109833718A (en) * | 2019-03-28 | 2019-06-04 | 无锡昌鼎电子有限公司 | A kind of nitrogen recycling reuse means |
| CN113363626A (en) * | 2021-05-19 | 2021-09-07 | 广东省科学院半导体研究所 | Battery and battery phase change heat management system and method |
| CN113363626B (en) * | 2021-05-19 | 2023-03-10 | 广东省科学院半导体研究所 | Battery and battery phase change heat management system and method |
| CN115247756A (en) * | 2022-06-28 | 2022-10-28 | 北京航天试验技术研究所 | Small-sized alloy hydrogen storage and supply device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20211016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |