CN101762190A - Double-pipe heat exchanger with equidistant opening fins - Google Patents
Double-pipe heat exchanger with equidistant opening fins Download PDFInfo
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- CN101762190A CN101762190A CN201010300520A CN201010300520A CN101762190A CN 101762190 A CN101762190 A CN 101762190A CN 201010300520 A CN201010300520 A CN 201010300520A CN 201010300520 A CN201010300520 A CN 201010300520A CN 101762190 A CN101762190 A CN 101762190A
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Abstract
The invention relates to a double-pipe heat exchanger with equidistant opening fins, belonging to the technical field of machinery and comprising an outer pipe, an inner pipe and a plurality of fins, wherein the outer pipe is sheathed with the inner pipe, the fins are arranged in an annular gap between the outer pipe and the inner pipe, and both ends of the fins are respectively connected with the inner wall of the outer pipe and the outer wall of the inner pipe; a plurality of equidistant openings are arranged on the fins, and the relation between the opening sizes L and the distances D between the openings is that the fins increase the heat exchanging area for the inner pipe when being used for supporting the inner and outer pipes. Two mediums respectively and relatively flow in the annular gap and the inner pipe, the medium flowing in the annular gap generates more detouring flows when passing through the fins so as to be uniformly mixed, therefore, the double-pipe heat exchanger solves the problem of low heat exchanging efficiency of a traditional heat exchanger and has the advantages of large heat exchanging area, small volume, simple structure and low material consumption.
Description
Technical field
What the present invention relates to is a kind of device of field of mechanical technique, in particular a kind of double-tube heat exchanger that has equidistant opening fin.
Background technology
Double-tube heat exchanger has good heat exchange property, so obtained using widely in fields such as refrigeration air-conditioner, chemical industry, power.But the double-tube heat exchanger that uses is to feed water or steam at pipeline at present, and to reach the effect of heat exchange, the coefficient of heat transfer of such double-tube heat exchanger is not high enough, and in order to reach best heat exchange effect, the heat exchanger volume of manufacturing is huge, has expended lot of materials.The coefficient of overall heat transmission is not high in addition, makes heat-exchange time long.A kind of double-tube heat exchanger is arranged on the industrial sector, forms by the two tubes of coaxial package, two kinds of mediums respectively in the pipe ring crack with interior pipe in relative mobile, carry out heat exchange.But only at the cylinder of tube wall, heat-transfer effect is not fine to heat transfer area.
Find through literature search prior art, China's utility model patent publication number: CN2336312, this technology discloses a kind of double-tube heat exchanger, and at two pipe nipple places of outer tube and inner sleeve, connecting respectively has the annular space guide wire that runs through between this section inner and outer pipe annular space.Be provided with the center mozzle at interior tube chamber internal frame.This mozzle can be that the streamline envelope core mozzle of band spiral stream guidance fin also can be the streamline envelope core mozzle of tape spool to straight fins.This heat exchanger structure complexity, consume material is more.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of double-tube heat exchanger that has equidistant opening fin is provided, design by improvement the fin of connection inner and outer pipes in the pipe ring, allow the medium that flows through to reduce or to destroy the boundary layer, increase disturbance, thereby improved heat exchange efficiency, other unnecessary structures have been simplified simultaneously, only manage in the outer tube sleeve, some fins are evenly distributed in the pipe ring, have increased interior pipe heat exchange area.
The present invention is achieved by the following technical solutions, the present invention includes: outer tube, interior pipe and several fins, and wherein: outer tube sleeve is connected to interior pipe, and fin is arranged in the annular space between outer tube and the interior pipe.Described fin is provided with several equally spaced openings, and the pass of the big or small L of opening and the space D of opening is:
Described outer tube, interior pipe and fin all are that aluminium is made.
The two ends of described fin link to each other with outer wall of inner tube with outer tube wall respectively.
The thickness of described fin equates with the thickness of interior pipe and outer tube wall.
Described fin is provided with some equal and opposite in directions and is staggered or through hole that matrix is arranged, and the pass of the diameter d of through hole and fin height h is:
The pass of the spacing l of two through hole and the diameter d of through hole is:
Described fin is provided with some sizes identical and staggered salient point and concave point, the diameter d of salient point and concave point ' with the pass of fin height h be:
2 spacing l ' and salient point concave point diameter d ' the pass be:
The present invention has the following advantages compared to existing technology: when the present invention uses, when fin is cooked the inner and outer pipes support, be again that interior pipe increases heat exchange area.Two kinds of mediums respectively annular space with in have in the pipe relative mobile, the medium that flows in annular space produces more streaming during through the opening on the fin, through hole or concave point salient point, it is more even that medium is mixed, thereby solved the not high enough problem of traditional heat exchange efficiency, whole device heat exchange area is big, volume is little, and is simple in structure and consume material is few.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of embodiment 1;
Fig. 3 is the structural representation of the not parallel opening of embodiment 1;
Fig. 4 is the longitudinal sectional drawing of the not parallel opening of embodiment 1;
Fig. 5 is the structural representation of embodiment 2;
Fig. 6 is the structural representation of embodiment 3.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is to implement under the prerequisite in technical solution of the present invention.Provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: outer tube 1, interior pipe 2 and five fins 3, wherein: outer tube 1 and the 2 coaxial sockets of interior pipe, five fins 3 evenly are arranged in the annular space between outer tube 1 and the interior pipe 2.The thickness of fin 3 equates that with the thickness of interior pipe 2 and outer tube 1 tube wall the two ends of fin 3 link to each other with interior pipe 2 outer walls with outer tube 1 inwall respectively, and outer tube 1, interior pipe 2 and fin 3 all are that aluminium is made.
As shown in Figure 2, all be provided with opening 4 on each fin 3, the spacing of opening 4 equates, the equal and opposite in direction of opening 4, the big or small L of opening 4 and opening 4 the pass of space D be:
The opening 4 on same fin 3 is not parallel to each other.As shown in Figure 3 and Figure 4, the opening 4 on same fin 3 is not parallel to each other mutually, and uneven opening 4 is shape in the shape of a spiral, and its spiral angle scope is: 10 ° ~ 45 °.
Two kinds of mediums respectively in annular space with interior pipe 2 in relative mobile, surface and interior pipe 2 outer walls by fin 3 carry out heat exchange.When the medium that flows in annular space passes through opening 4, produce more bigger streaming and convection current, thereby improved heat exchange efficiency.
As shown in Figure 5, in the present embodiment, fin 3 is provided with some equal and opposite in directions and is staggered or through hole 5 that matrix is arranged.The pass of the diameter d of through hole 5 and fin 3 height h is:
The pass of the diameter d of two through hole 5 spacing l and through hole 5 is:
5 pairs of in line row of through hole, through hole 5 are two row.
Other performances are identical with embodiment 1.The medium that flows in annular space can produce more bigger streaming when passing through through hole 5, thereby has improved heat exchange efficiency.
As shown in Figure 6, in the present embodiment, stamp out some equal-sized salient points 6 and concave point 7 on the fin 3.The diameter d of salient point 6 and concave point 7 ' with fin 3 highly the pass of h be:
Distance between two points l ' and 2 diameter d ' the pass be:
Salient point 6 and concave point 7 are staggered mutually, and salient point 6 and concave point 7 are two row.Other performances are identical with embodiment 1.These salient points 6 and concave point 7 have not only increased the heat exchange area of fin 3, and allow the medium that flows through produce flow-disturbing, thereby make its mixing more even, and then have improved heat exchange efficiency.
Claims (5)
1. double-tube heat exchanger that has equidistant opening fin, comprise: outer tube, interior pipe and several fins, wherein: outer tube sleeve is connected to interior pipe, and fin is arranged in the annular space between outer tube and the interior pipe, and it is characterized in that: the two ends of fin link to each other with outer wall of inner tube with outer tube wall respectively; Described fin is provided with several equally spaced openings, and the pass of the big or small L of opening and the space D of opening is:
2. the double-tube heat exchanger that has equidistant opening fin according to claim 1 is characterized in that, described outer tube, interior pipe and fin all are that aluminium is made.
3. the double-tube heat exchanger that has equidistant opening fin according to claim 1 is characterized in that, described fin thickness equates with the thickness of interior pipe and outer tube wall.
4. the double-tube heat exchanger that has equidistant opening fin according to claim 1 is characterized in that, described fin is provided with some equal and opposite in directions and is staggered or through hole that matrix is arranged, and the pass of the height h of the diameter d of through hole and fin is:
The pass of the spacing l of two through hole and the diameter d of through hole is:
5. the double-tube heat exchanger that has equidistant opening fin according to claim 1 is characterized in that, described fin is provided with some sizes identical and staggered salient point and concave point, the diameter d of salient point and concave point ' with the pass of the height h of fin be:
The diameter d of 2 spacing l ' and salient point concave point ' the pass be:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300520A CN101762190A (en) | 2010-01-21 | 2010-01-21 | Double-pipe heat exchanger with equidistant opening fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300520A CN101762190A (en) | 2010-01-21 | 2010-01-21 | Double-pipe heat exchanger with equidistant opening fins |
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| Publication Number | Publication Date |
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| CN101762190A true CN101762190A (en) | 2010-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010300520A Pending CN101762190A (en) | 2010-01-21 | 2010-01-21 | Double-pipe heat exchanger with equidistant opening fins |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148721A (en) * | 2013-03-14 | 2013-06-12 | 江苏昊隆换热器有限公司 | Double-layer plate type heat exchanger |
| CN103629952A (en) * | 2012-08-29 | 2014-03-12 | 洛阳麦达斯铝业有限公司 | Tubular heat exchanger, method for manufacturing tubular heat exchanger and heat exchange equipment |
| CN104019681A (en) * | 2013-05-06 | 2014-09-03 | 昆山瑞恒峰技术咨询有限公司 | Novel heat exchanger |
| CN104406435A (en) * | 2014-11-24 | 2015-03-11 | 无锡鸿声铝业有限公司 | Aluminum finned tube heat exchanger |
| CN104864759A (en) * | 2015-05-29 | 2015-08-26 | 西安交通大学 | Plate-fin heat exchange component and welding device thereof |
| CN105091652A (en) * | 2015-09-17 | 2015-11-25 | 西安交通大学 | Multistage finned tube capable of restraining frost formation and intensifying natural convection |
| CN105758245A (en) * | 2016-01-11 | 2016-07-13 | 上海核工程研究设计院 | Non-continuous outer trapezoid longitudinal rib tube |
| CN106907943A (en) * | 2017-03-02 | 2017-06-30 | 青岛海尔空调器有限总公司 | Heat exchanger |
| CN111121497A (en) * | 2020-01-20 | 2020-05-08 | 郑州科林车用空调有限公司 | Novel regenerator structure |
| CN113710946A (en) * | 2019-03-26 | 2021-11-26 | 泰特弗莱克斯公司 | Multilayer composite pipe and piping assembly having reflective insulation |
| CN113932561A (en) * | 2020-07-13 | 2022-01-14 | 宿迁启祥电子科技有限公司 | Cold and heat storage block and preparation method thereof |
-
2010
- 2010-01-21 CN CN201010300520A patent/CN101762190A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629952B (en) * | 2012-08-29 | 2016-05-18 | 洛阳麦达斯铝业有限公司 | Duct type heat exchanger, its manufacture method and heat transmission equipment |
| CN103629952A (en) * | 2012-08-29 | 2014-03-12 | 洛阳麦达斯铝业有限公司 | Tubular heat exchanger, method for manufacturing tubular heat exchanger and heat exchange equipment |
| CN103148721A (en) * | 2013-03-14 | 2013-06-12 | 江苏昊隆换热器有限公司 | Double-layer plate type heat exchanger |
| CN104019681A (en) * | 2013-05-06 | 2014-09-03 | 昆山瑞恒峰技术咨询有限公司 | Novel heat exchanger |
| CN104406435A (en) * | 2014-11-24 | 2015-03-11 | 无锡鸿声铝业有限公司 | Aluminum finned tube heat exchanger |
| CN104864759A (en) * | 2015-05-29 | 2015-08-26 | 西安交通大学 | Plate-fin heat exchange component and welding device thereof |
| CN105091652A (en) * | 2015-09-17 | 2015-11-25 | 西安交通大学 | Multistage finned tube capable of restraining frost formation and intensifying natural convection |
| CN105758245A (en) * | 2016-01-11 | 2016-07-13 | 上海核工程研究设计院 | Non-continuous outer trapezoid longitudinal rib tube |
| CN106907943A (en) * | 2017-03-02 | 2017-06-30 | 青岛海尔空调器有限总公司 | Heat exchanger |
| CN106907943B (en) * | 2017-03-02 | 2019-04-23 | 青岛海尔空调器有限总公司 | Heat exchanger |
| CN113710946A (en) * | 2019-03-26 | 2021-11-26 | 泰特弗莱克斯公司 | Multilayer composite pipe and piping assembly having reflective insulation |
| CN111121497A (en) * | 2020-01-20 | 2020-05-08 | 郑州科林车用空调有限公司 | Novel regenerator structure |
| CN113932561A (en) * | 2020-07-13 | 2022-01-14 | 宿迁启祥电子科技有限公司 | Cold and heat storage block and preparation method thereof |
| CN113932561B (en) * | 2020-07-13 | 2023-11-17 | 宿迁启祥电子科技有限公司 | Cold and heat storage block and preparation method thereof |
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Open date: 20100630 |