CN207963603U - A kind of double-tube heat exchanger heat-transfer pipe - Google Patents
A kind of double-tube heat exchanger heat-transfer pipe Download PDFInfo
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- CN207963603U CN207963603U CN201820343296.0U CN201820343296U CN207963603U CN 207963603 U CN207963603 U CN 207963603U CN 201820343296 U CN201820343296 U CN 201820343296U CN 207963603 U CN207963603 U CN 207963603U
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- conduit
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- matrix
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Abstract
The utility model discloses a kind of double-tube heat exchanger heat-transfer pipes：It includes pipe matrix, and several interlaced the first conduits and the second conduit axially extended in the shape of a spiral around pipe matrix are equipped in the outer surface of pipe matrix；It is mutually parallel between first conduit, is mutually parallel between second conduit；It is equipped with diamond shape fin between two first conduits and two second conduits, cylindric cavity is equipped in the fin.Condensate film can be thinned in the first conduit in the utility model and the interlaced distribution of the second conduit, reduce heat transfer resistance；The outer diamond shape fin of pipe, increases heat transfer area, and can enhance wall disturbance, to improve heat transfer efficiency；Cylindric cavity is set in diamond shape fin, can be improved the degree of superheat of evaporation and be provided more nucleateboiling core, so as to enhanced water evaporation performance.
Description
Technical field
The utility model is related to a kind of double-tube heat exchanger heat-transfer pipes.
Background technology
In face of increasingly serious energy crisis, energy saving is the most effective measure of alleviating energy crisis.Heat-transfer pipe is that casing changes
The important component of hot device, and it is widely used in the fields such as oil, chemical industry, electric power, nuclear energy, refrigeration.
The heat-transfer pipe of double-tube heat exchanger at present, the equally distributed rectangular preiection in outer surface, but its height is relatively low, specific surface
Product is small, and rectangular fin is limited to boundary layer perturbation, and rectangular fin increases the radial and axial flow resistance of liquid, liquid
It cannot be discharged in time, increase thermal resistance and influence heat transfer property.
Utility model content
For above-mentioned defect, the utility model provides a kind of double-tube heat exchanger heat-transfer pipe, can promote to evaporate
The progress of journey makes film of condensate thickness be thinned, and reduces average thermal resistance, improves heat transfer outside a tube coefficient, and make condensation effect into one
Step enhancing.
It is as follows that the utility model solves used technical solution：
A kind of double-tube heat exchanger heat-transfer pipe comprising pipe matrix is equipped with several interlaced in the outer surface of pipe matrix
The first conduit and the second conduit axially extended in the shape of a spiral around pipe matrix；It is mutually parallel between first conduit, it is described
It is mutually parallel between second conduit；It is equipped with fin between two first conduits and two second conduits, is equipped in the fin recessed
Chamber.
In one or more embodiments, the fin is diamond shape fin, and the cavity is cylindric cavity.
In one or more embodiments, on the radial circumference of pipe outer surface of matrix, the quantity of fin is 20~56.
In one or more embodiments, on the radial circumference of pipe outer surface of matrix, the quantity of diamond shape fin is 20~
56, diamond shape angle is 30~60 °.
In one or more embodiments, the depth of the cylindric cavity is 0.2~0.5mm.
In one or more embodiments, on the radial circumference of pipe outer surface of matrix, the quantity of cylindric cavity is 30
~80.
In one or more embodiments, the depth of first conduit and the second conduit is 0.2~0.40mm.
In one or more embodiments, the spiral angle of the first conduit and the second conduit is 35~50 °.
In one or more embodiments, first conduit and the second conduit are evenly spaced in pipe matrix appearance
Face.
Due to the adoption of the above technical solution, the utility model has the advantages that compared with prior art：
Cylindric cavity provides more nucleateboiling cores for evaporation process, can promote the progress of evaporation process；The
One conduit, the second conduit, diamond shape fin and cylindric cavity can be such that film of condensate thickness is thinned, advantageously reduce average thermal resistance,
Heat transfer outside a tube coefficient is improved, the first conduit and the second conduit are conducive to condensate liquid discharge so that condensation effect further enhances.
Description of the drawings
Fig. 1 is the partial structural diagram of the utility model.
Specific implementation mode
As follows in conjunction with attached drawing, application scheme is further described：
Referring to attached drawing 1, the utility model includes pipe matrix 1, in the outer surface of pipe matrix 1 be equipped with it is several it is interlaced around
Axial the first conduit 2 and the second conduit 3 extended in the shape of a spiral of pipe matrix 1；It is mutually parallel between first conduit 2, it is described
It is mutually parallel between second conduit 3；Diamond shape fin 4 is equipped between two first conduits 2 and two second conduits 3, in the fin
In be equipped with cylindric cavity 5.
In on the radial circumference of 1 outer surface of pipe matrix, the quantity of diamond shape fin 4 is 20~56, diamond shape angle is 30~
60°。
The depth of the cylindric cavity 5 is 0.2~0.5mm.It is cylindric on the radial circumference of 1 outer surface of pipe matrix
The quantity of cavity 5 is 30~80.
The depth of first conduit, 2 and second conduit 3 is 0.2~0.40mm.The spiral shell of first conduit 2 and the second conduit 3
Swing angle degree is 35~50 °.First conduit, 2 and second conduit 3 is evenly spaced in 1 outer surface of pipe matrix.
First conduit 2, the second conduit 3, diamond shape fin 4 and cylindric cavity 5 form for time processing.
It is that above-mentioned preferred embodiment should be regarded as application scheme embodiment for example, all with application scheme thunder
Technology deduction, replacement, improvement etc. same, approximate or make based on this, are regarded as the protection domain of this patent.
Claims (9)
1. a kind of double-tube heat exchanger heat-transfer pipe, it is characterised in that：It includes pipe matrix, is equipped in the outer surface of pipe matrix several
Interlaced the first conduit and the second conduit axially extended in the shape of a spiral around pipe matrix；It is mutually flat between first conduit
It goes, is mutually parallel between second conduit；Fin is equipped between two first conduits and two second conduits, in the fin
Equipped with cavity.
2. double-tube heat exchanger heat-transfer pipe according to claim 1, it is characterised in that：The fin is diamond shape fin, institute
It is cylindric cavity to state cavity.
3. double-tube heat exchanger heat-transfer pipe according to claim 1, it is characterised in that：In the radial direction circle of pipe outer surface of matrix
The quantity of Zhou Shang, fin are 20~56.
4. double-tube heat exchanger heat-transfer pipe according to claim 2, it is characterised in that：In the radial direction circle of pipe outer surface of matrix
The quantity of Zhou Shang, diamond shape fin are 20~56, and diamond shape angle is 30~60 °.
5. double-tube heat exchanger heat-transfer pipe according to claim 2, it is characterised in that：The depth of the cylindric cavity is
0.2~0.5mm.
6. double-tube heat exchanger heat-transfer pipe according to claim 2, it is characterised in that：In the radial direction circle of pipe outer surface of matrix
The quantity of Zhou Shang, cylindric cavity are 30~80.
7. double-tube heat exchanger heat-transfer pipe according to claim 1, it is characterised in that：First conduit and the second conduit
Depth be 0.2~0.40mm.
8. double-tube heat exchanger heat-transfer pipe according to claim 1, it is characterised in that：The spiral shell of first conduit and the second conduit
Swing angle degree is 35~50 °.
9. double-tube heat exchanger heat-transfer pipe according to any one of claims 1 to 8, it is characterised in that：First conduit with
Second conduit is evenly spaced in pipe outer surface of matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820343296.0U CN207963603U (en) | 2018-03-14 | 2018-03-14 | A kind of double-tube heat exchanger heat-transfer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820343296.0U CN207963603U (en) | 2018-03-14 | 2018-03-14 | A kind of double-tube heat exchanger heat-transfer pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207963603U true CN207963603U (en) | 2018-10-12 |
Family
ID=63742519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820343296.0U Active CN207963603U (en) | 2018-03-14 | 2018-03-14 | A kind of double-tube heat exchanger heat-transfer pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207963603U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974513A (en) * | 2019-03-28 | 2019-07-05 | 大连理工大学 | A kind of minute yardstick collaboration surface texture of enhanced boiling heat transfer |
| CN111854502A (en) * | 2020-07-08 | 2020-10-30 | 珠海格力电器股份有限公司 | Heat exchange tube and air conditioning unit |
-
2018
- 2018-03-14 CN CN201820343296.0U patent/CN207963603U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974513A (en) * | 2019-03-28 | 2019-07-05 | 大连理工大学 | A kind of minute yardstick collaboration surface texture of enhanced boiling heat transfer |
| CN111854502A (en) * | 2020-07-08 | 2020-10-30 | 珠海格力电器股份有限公司 | Heat exchange tube and air conditioning unit |
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