CN206399267U - Heat exchanger tube and double pipe heat exchanger - Google Patents
Heat exchanger tube and double pipe heat exchanger Download PDFInfo
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- CN206399267U CN206399267U CN201720034778.3U CN201720034778U CN206399267U CN 206399267 U CN206399267 U CN 206399267U CN 201720034778 U CN201720034778 U CN 201720034778U CN 206399267 U CN206399267 U CN 206399267U
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Abstract
The utility model discloses a kind of heat exchanger tube and double pipe heat exchanger.Multiple fin structures are provided with the internal face and/or outside wall surface of the heat exchanger tube, the fin structure includes multiple fin units, the multiple fin unit includes the first fin unit being connected with the internal face and/or outside wall surface of the heat exchanger tube and the second fin unit being connected with first fin unit, the cross section of first fin unit is in the first squashed structure, the cross section of second fin unit is in the second squashed structure, has angle between the length direction of first squashed structure and the length direction of second squashed structure.There is angle between the length direction that the fin structure for the heat exchanger tube that the utility model is provided includes having the cross section of two fin units in multiple fin units and multiple fin units, the heat exchange area of heat exchanger tube is effectively improved by the improvement to fin structure, and then improve the heat exchange efficiency of heat exchanger tube, and it is simple in construction, it is readily produced, cost is relatively low.
Description
Technical field
The utility model is related to field of heat exchange, relates more specifically to a kind of heat exchanger tube and the bushing type using the heat exchanger tube
Heat exchanger.
Background technology
Double pipe heat exchanger is the heat exchanger set by two kinds of different pipe sleeves of diameter.Existing bushing type is changed
Hot device outer tube typically uses steel pipe, and interior form of tubes is more, there is what is directly bent using single larger bare copper tube, also has using many
Bent together after the small bare copper tube beam combination of root, also have using single spiral light pipe directly bend etc..And copper pipe is universal
Using embossed surface technique, overall heat exchange efficiency is relatively low, can only improve heat exchanger by the way of sleeve pipe entire length is increased
Heat exchange efficiency, in actual application, particularly with space size limit place, traditional scheme design in there is chi
The excessive defect for not meeting installation requirement of very little, volume.To solve this problem, used in existing structure on the wall of heat exchanger tube
The mode of fin is set to improve heat exchange efficiency, but it is this still relatively low using the heat exchanger heat exchange property of single fin structure.
Utility model content
In view of this, one of the purpose of this utility model be to provide a kind of high heat exchanger tube of simple in construction, heat exchange efficiency and
Double pipe heat exchanger.
For up to above-mentioned purpose, there is provided a kind of heat exchanger tube for first aspect.
Multiple fin structures, the fin are provided with a kind of heat exchanger tube, the internal face and/or outside wall surface of the heat exchanger tube
Structure includes multiple fin units, and the multiple fin unit includes being connected with the internal face and/or outside wall surface of the heat exchanger tube
The first fin unit and the second fin unit for being connected with first fin unit, first fin unit it is transversal
Face is in the first squashed structure, and the cross section of second fin unit is in the second squashed structure, the length of first squashed structure
Spending has angle between direction and the length direction of second squashed structure.
Preferably, the length direction of the length direction of first squashed structure and second squashed structure mutually hangs down
Directly.
Preferably, the thickness of first fin unit is from the internal face and/or outer wall of the heat exchanger tube towards described
The direction of two fin units is gradually reduced.
Preferably, the two sides of first fin unit and/or second fin unit are in curved surface.
Preferably, smoothed surface blending connection between first fin unit and second fin unit；With/
Or,
Smoothed surface blending connects between the internal face and/or outside wall surface of first fin unit and the heat exchanger tube
Connect.
Preferably, the cross section of the fin structure is T-shaped.
Preferably, the heat exchanger tube is multiple-threaded spiral corrugated pipe.
Preferably, it is circumferentially arranged in the outside wall surface of the heat exchanger tube to have a plurality of first raised, inwall of the heat exchanger tube
It is circumferentially arranged on face to have a plurality of second projection, and second projection is located between adjacent two first projection, described first is convex
Rise and the described second raised axis helically line, the described first raised cross section is trapezoidal, described second is raised transversal
Face is curved.
Preferably, hand of spiral extension of the fin structure along the heat exchanger tube.
Preferably, the thickness of pipe t of the heat exchanger tube is 0.8 to 1.5mm；And/or,
The number of starts of the heat exchanger tube is 6 to 8；And/or,
The thread pitch p of the heat exchanger tube is 8 to 20mm；And/or,
The thread groove width w of the heat exchanger tube is 3 to 7mm；And/or,
The outside diameter d 1 of the heat exchanger tube is 25 to 40mm；And/or,
The internal diameter d2 of the heat exchanger tube is 15 to 28mm.
Second aspect, the utility model provides a kind of double pipe heat exchanger.
A kind of double pipe heat exchanger, including outer tube and the inner tube that is sheathed in the outer tube, said inner tube is as above institute
The heat exchanger tube stated.
The fin structure for the heat exchanger tube that the utility model is provided includes having two in multiple fin units and multiple fin units
There is angle between the length direction of the cross section of individual fin unit, heat exchanger tube is effectively improved by the improvement to fin structure
Heat exchange area, and then the heat exchange efficiency of heat exchanger tube is improved, and it is simple in construction, it is easy to produce, cost is relatively low.
The double pipe heat exchanger that the utility model is provided uses above-mentioned heat exchanger tube, and simple in construction, cost is low, heat exchange efficiency
It is high.
Brief description of the drawings
By description referring to the drawings to the utility model embodiment, of the present utility model above-mentioned and other mesh
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the structural representation of the heat exchanger tube for the partial vertical sectional that the utility model embodiment is provided；
Fig. 2 shows in Fig. 1 A-A to sectional view；
Fig. 3 shows the partial enlarged drawing at B in Fig. 1；
Fig. 4 shows the double pipe heat exchanger that the utility model embodiment is provided.
In figure, 1, heat exchanger tube；2nd, fin structure；21st, the first fin unit；211st, the first squashed structure；22nd, the second fin
Unit；221st, the second squashed structure；3rd, first is raised；4th, the first groove；5th, second is raised；6th, the second groove；7th, thread protrusion；
8th, outer tube.
Embodiment
The utility model is described below based on embodiment, but the utility model is not restricted to these implementations
Example.It is detailed to describe some specific detail sections below in detailed description of the present utility model.To people in the art
The description of part can also understand the utility model completely without these details for member.It is of the present utility model in order to avoid obscuring
Essence, known method, process, flow, element do not have detailed narration.
In addition, it should be understood by one skilled in the art that provided herein accompanying drawing be provided to explanation purpose, and
What accompanying drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with the " comprising " in claims, "comprising" etc.
Word should be construed to the implication included rather than exclusive or exhaustive implication；That is, being containing for " including but is not limited to "
Justice.
In description of the present utility model, it is to be understood that term " first ", " second " etc. are only used for describing purpose,
And it is not intended that indicating or implying relative importance.In addition, in description of the present utility model, it is unless otherwise indicated, " many
It is individual " it is meant that two or more.
This application provides a kind of heat exchanger tube, as shown in Figure 1 to Figure 3, multiple fins are provided with the outside wall surface of heat exchanger tube 1
Structure 2, fin structure 2 extends in the outside wall surface of heat exchanger tube, increases the heat exchange area of heat exchanger tube by fin structure 2.Wing
Chip architecture 2 includes multiple fin units, and multiple fin units include the first fin unit being connected with the outside wall surface of heat exchanger tube 1
21 and the second fin unit 22 for being connected with the first fin unit 21, wherein, the cross section of the first fin unit 21 is in first
Squashed structure (i.e. with a longer length direction and a shorter width) 211, the horizontal stroke of the second fin unit 22
Section is in the second squashed structure 221, the length direction of the length direction of the first squashed structure 211 and the second squashed structure 221 it
Between have angle, on the one hand, settings of multiple fin units can improve the surface area of heat exchanger tube, another aspect, two fin lists
Being set between member in angle enables fin unit to be exchanged heat in different angles and fluid, by fin structure 2
The heat exchange area for effectively improving heat exchanger tube is improved, and then is improved under the heat exchange efficiency of heat exchanger tube, equal heat exchange efficiency compared to existing
There is heat exchanger tube to take small volume, and it is simple in construction, it is easy to produce, cost is relatively low.
Angle numerical value of first squashed structure 211 with the second squashed structure 221 in the longitudinal direction is not limited specifically, for convenience
Set, be preferably arranged in a mutually vertical manner, it is further preferred that as shown in figure 3, the section of fin structure 2 is T-shaped, section is T-shaped
Fin structure 2 can improve the microcosmic flow direction for the fluid for flowing through the outside of heat exchanger tube 1, further improve the conductivity of heat of heat exchanger tube 2
Energy.
Further, the first fin unit 21 and the second fin unit 22 are in continuous strip laminated structure, first
The width of fin unit 21 is radially extended along heat exchanger tube 1, the axle of the width of the second fin unit 22 along heat exchanger tube 1
To extension, the heat transfer effect of fin structure 2 so can further improve.
Further, the arrangement mode of the first fin unit 21 and the second fin unit 22 in the outside wall surface of heat exchanger tube 1 is not
Limit, is perfectly even covered with the whole outside wall surface of heat exchanger tube 1, in one embodiment, circumference of the fin structure 2 along heat exchanger tube 1 is prolonged
Stretch, i.e. multi-turn fin structure 2 is set in the outside wall surface of heat exchanger tube 1, in another embodiment, a plurality of fin structure 2 is along changing
Heat pipe 1 it is axially extending, and along the circumferential uniform of heat exchanger tube 1, In yet another embodiment, a plurality of fin structure 2 is in heat exchanger tube 1
Outside wall surface on helically line arrange, preferably multi-head spiral line (introduction for having specific embodiment below).
Further, the thickness of the first fin unit 21 from the outer wall of heat exchanger tube towards the direction of the second fin unit 22 by
It is decrescence small, on the one hand, the structural strength of fin structure 2 can be improved, on the other hand, it can also improve the side of the first fin unit 21
The area in face, so as to the surface area of further increase heat exchanger tube 1.Two opposite sides 212 of first fin unit 21
Concrete shape is not limited, preferably curved surface, can further improve the heat exchange area of the first fin unit 21.Specifically, first
On the section of fin unit 21, two sides 212 of the first fin unit 21 are in oblique line (as shown in Figure 3), camber line or wave.
Further, be the surface area of further increase heat exchanger tube 1, the two sides 222 of the second fin unit 22 it is also preferred that
In curved surface, in one embodiment, the both sides of the second fin unit 22 are bent towards the same side so that the second fin unit 22 is in
Bending plate, in another embodiment, the second fin unit 22 are gradually reduced (such as Fig. 3 institutes from centre to two side thickness
Show), in a still further embodiment, the second fin unit 22 is gradually increased from centre to two side thickness.The change of thickness can
So that fluid produces extruding, shunting action in flow process to fluid, the heat transfer effect of fluid is further improved.
Further, smoothed surface blending connection, the first wing between the first fin unit 21 and the second fin unit 22
Also smoothed surface blending connection, on the one hand can improve structural strength between the outside wall surface of blade unit 21 and heat exchanger tube 1, another
Aspect can avoid producing the motion dead angle of fluid.
Further, thread protrusion 7 is provided with the internal face 1 of heat exchanger tube, thread protrusion 7 can improve heat exchanger tube 1
Internal face heat exchange area, further improve heat exchanger tube 1 heat exchange efficiency.
Further, fin structure 2 preferably with heat exchanger tube 1 in integrative-structure set, thread protrusion 7 preferably also with heat exchanger tube
1 is set in integrative-structure, is conducive to the transmission of heat.
In a preferred embodiment, as shown in Figure 1-2, heat exchanger tube 1 is multiple-threaded spiral corrugated pipe so that heat exchanger tube 1
Body form the structure of concavo-convex alternate (outer wall and inwall are concavo-convex alternate) in the circumferential so that the outside wall surface of heat exchanger tube 1
It is in rough surface with internal face, and fin structure 2 is formed on rough surface.Concaveconvex structure is in axial direction
Upper formation helical form, i.e. circumferentially arranged in the outside wall surface of heat exchanger tube 1 to have a plurality of first projection 3, the axis of the first projection 3 is in
Helix, on the internal face of heat exchanger tube 1 with the first raised 3 position corresponding position formed the first groove 4, it is multiple first projection 3 it
Between form the second groove 6 in the outside wall surface of heat exchanger tube 1, the axis of the second groove 6 also helically line, in the inwall of heat exchanger tube 1
The second projection 5 is formed on face with the position corresponding position of the second groove 6, i.e., the second projection 5 is located between adjacent two first projection 3,
That is, the body of heat exchanger tube 1 is spaced indent in the circumferential, so that fluid forms spiral flow direction, is changed when fluid flows through this
Advance during heat pipe 1 in vortex, heat transfer property is stronger.
It is further preferred that the section of the first projection 3 is in generally trapezoidal, and long side is located at the radial outside of short side, second
The section of projection 5 is curved, preferably in substantially circular arc, first projection 3 and second between projection 5 and the first projection 3 is turned
Angle is arc transition, so results in more preferable fluid flow direction and preferably heat exchange property.
Further, hand of spiral extension of the fin structure 2 along heat exchanger tube 1, i.e. the axis of fin structure 2 helically line,
And the first projection 3 with heat exchanger tube 1, the helix of the second groove 6 are parallel.Specifically, the first fin unit 21 and the second fin
The helically platy structure of unit 22.
Further, multiple-threaded spiral corrugated pipe is formed by efficiently managing by spinning, and processing method is simple, and production cost is low.
Preferably, as shown in figure 1, the thickness of pipe t of heat exchanger tube 1 is 0.8 to 1.5mm, the number of starts of heat exchanger tube 1 is 6 to 8,
The thread pitch p of heat exchanger tube 1 is 8 to 20mm, and the thread groove width w of heat exchanger tube 1 is 3 to 7mm, the outside diameter d 1 of heat exchanger tube 1 for 25 to
40mm, the internal diameter d2 of heat exchanger tube 1 is 15 to 28mm.It so can further improve the heat exchange property of heat exchanger tube 1.
It is, of course, understood that fin structure 2 is not limited to be arranged in the outside wall surface of heat exchanger tube 1, it can also set
Above-mentioned fin structure 2 is respectively provided with the internal face of heat exchanger tube 1, or on outside wall surface and internal face.In addition, fin structure 2
It is not limited to only include the first fin unit 21 and the second fin unit 22, may also include other fin units, specifically can root
It is configured according to heat exchange demand and the size requirement for exchanging heat pipe.
Further, present invention also provides a kind of double pipe heat exchanger, as shown in figure 4, it includes outer tube 8 and is arranged
Inner tube in outer tube 8, outer tube 8 is coaxially disposed with inner tube, and inner tube is heat exchanger tube as described above, and heat exchange efficiency is high, takes body
Product is small.Outer tube 8 and inner tube are preferably in spiral fashion structure so that structure is compacter.
Further, because inner tube uses the multiple-threaded spiral corrugated pipe that efficient pipe is made, strengthened using rotary refrigerating agent and passed
Heat, and utilization space, make the heat transferring medium such as water route inside and outside inner tube utilize spirality channel in convection process with refrigerant
Fully laminating contact, both enhances the coefficient of heat transfer, and heat exchange area is added again, and fluid mobility might as well.In addition, because when refrigeration
During agent reverse flow, the increase of the heat exchange area of the coefficient of heat transfer and unit volume, so the heat exchanger either as condenser also
It is that, as evaporator, heat exchange property is equally outstanding.
In addition, the double pipe heat exchanger that the application is provided not only is greatly improved on heat exchange property, and space can be saved,
Save material under conditions of equal heat exchange amount demand, reduce overall processing difficulty, its service life and other reliabilities are also very
Guaranteed, overall price/performance ratio is greatly improved.
Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each preferred scheme can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is only illustrative, and not restrictive, without departing from of the present utility model
In the case of general principle, the various obvious or equivalent modification that those skilled in the art can make for above-mentioned details
Or replace, all it is included in right of the present utility model.
Claims (11)
1. a kind of heat exchanger tube, it is characterised in that multiple fin knots are provided with the internal face and/or outside wall surface of the heat exchanger tube
Structure, the fin structure includes multiple fin units, the multiple fin unit include with the internal face of the heat exchanger tube and/or
First fin unit of outside wall surface connection and the second fin unit being connected with first fin unit, first fin
The cross section of unit is in the first squashed structure, and the cross section of second fin unit is in the second squashed structure, and described first is flat
There is angle between the length direction of the length direction of shape structure and second squashed structure.
2. heat exchanger tube according to claim 1, it is characterised in that the length direction of first squashed structure and described the
The length direction of two squashed structures is mutually perpendicular to.
3. heat exchanger tube according to claim 1, it is characterised in that the thickness of first fin unit is from the heat exchanger tube
Internal face and/or the direction of outer wall towards second fin unit be gradually reduced.
4. heat exchanger tube according to claim 1, it is characterised in that first fin unit and/or second fin
The two sides of unit are in curved surface.
5. heat exchanger tube according to claim 1, it is characterised in that first fin unit and second fin unit
Between the connection of smoothed surface blending；And/or,
Smoothed surface blending connection between the internal face and/or outside wall surface of first fin unit and the heat exchanger tube.
6. heat exchanger tube according to claim 1, it is characterised in that the cross section of the fin structure is T-shaped.
7. heat exchanger tube according to claim 1, it is characterised in that the heat exchanger tube is multiple-threaded spiral corrugated pipe.
8. heat exchanger tube according to claim 7, it is characterised in that circumferentially arranged in the outside wall surface of the heat exchanger tube to have many
Bar first is raised, circumferentially arranged on the internal face of the heat exchanger tube to have a plurality of second projection, and second projection is located at phase
Between adjacent two first projections, the described first raised and described second raised axis helically line, first projection it is transversal
Face is trapezoidal, and the cross section of second projection is curved.
9. heat exchanger tube according to claim 7, it is characterised in that the hand of spiral of the fin structure along the heat exchanger tube
Extension.
10. heat exchanger tube according to claim 7, it is characterised in that the thickness of pipe t of the heat exchanger tube is 0.8 to 1.5mm；With/
Or,
The number of starts of the heat exchanger tube is 6 to 8；And/or,
The thread pitch p of the heat exchanger tube is 8 to 20mm；And/or,
The thread groove width w of the heat exchanger tube is 3 to 7mm；And/or,
The outside diameter d 1 of the heat exchanger tube is 25 to 40mm；And/or,
The internal diameter d2 of the heat exchanger tube is 15 to 28mm.
11. a kind of double pipe heat exchanger, it is characterised in that including outer tube and the inner tube being sheathed in the outer tube, described interior
Heat exchanger tube described in Guan Weiru any one of claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720034778.3U CN206399267U (en) | 2017-01-12 | 2017-01-12 | Heat exchanger tube and double pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720034778.3U CN206399267U (en) | 2017-01-12 | 2017-01-12 | Heat exchanger tube and double pipe heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN206399267U true CN206399267U (en) | 2017-08-11 |
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ID=59512586
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720034778.3U Active CN206399267U (en) | 2017-01-12 | 2017-01-12 | Heat exchanger tube and double pipe heat exchanger |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767097A (en) * | 2017-01-12 | 2017-05-31 | 珠海格力电器股份有限公司 | Heat exchanger tube and double pipe heat exchanger |
| CN108050868A (en) * | 2017-12-08 | 2018-05-18 | 青岛开拓隆海制冷配件有限公司 | Air source heat pump low temperature water system heat exchanger thermoexcell and its manufacturing method |
| CN112414198A (en) * | 2020-11-19 | 2021-02-26 | 浙江义腾特种钢管有限公司 | Seamless pipe for boiler heat exchanger |
-
2017
- 2017-01-12 CN CN201720034778.3U patent/CN206399267U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767097A (en) * | 2017-01-12 | 2017-05-31 | 珠海格力电器股份有限公司 | Heat exchanger tube and double pipe heat exchanger |
| CN108050868A (en) * | 2017-12-08 | 2018-05-18 | 青岛开拓隆海制冷配件有限公司 | Air source heat pump low temperature water system heat exchanger thermoexcell and its manufacturing method |
| CN108050868B (en) * | 2017-12-08 | 2019-08-16 | 青岛开拓隆海制冷配件有限公司 | Air source heat pump low temperature water system heat exchanger thermoexcell and its manufacturing method |
| CN112414198A (en) * | 2020-11-19 | 2021-02-26 | 浙江义腾特种钢管有限公司 | Seamless pipe for boiler heat exchanger |
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