CN211400922U - Heat exchange tube, heat exchanger and air conditioner - Google Patents
Heat exchange tube, heat exchanger and air conditioner Download PDFInfo
- Publication number
- CN211400922U CN211400922U CN201922198538.9U CN201922198538U CN211400922U CN 211400922 U CN211400922 U CN 211400922U CN 201922198538 U CN201922198538 U CN 201922198538U CN 211400922 U CN211400922 U CN 211400922U
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- Prior art keywords
- heat exchange
- outer rib
- rib structure
- exchange tube
- tube base
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- 238000001704 evaporation Methods 0.000 claims abstract description 39
- 230000008020 evaporation Effects 0.000 claims abstract description 38
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 28
- 238000009834 vaporization Methods 0.000 abstract description 7
- 230000008016 vaporization Effects 0.000 abstract description 7
- 239000011552 falling film Substances 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a heat exchange tube, heat exchanger and air conditioner, the heat exchange tube includes: a tube base; the outer wall of the tube base body is provided with an outer rib structure, the cross section of the outer rib structure is V-shaped, and an evaporation cavity with a triangular cross section is formed between adjacent outer rib structures. The utility model discloses a heat exchange tube, the inside evaporation chamber that forms triangle-shaped helical coiled passage of spiral outer rib structure, vaporization core is in large quantity, outwards forms V-arrangement spiral runner, cooperation rectangular channel, and refrigerant hoop and axial flow are effectual, and heat transfer capacity is strong.
Description
Technical Field
The utility model belongs to the technical field of the heat transfer, concretely relates to heat exchange tube, heat exchanger and air conditioner.
Background
Common evaporators used in commercial air conditioners include dry evaporators, flooded evaporators and falling film evaporators. In recent years, the falling film evaporator has the advantages of high heat exchange efficiency and small refrigerating flushing amount compared with a flooded evaporator, so the falling film evaporator is developed quickly, and the falling film evaporator is widely applied to a refrigerating system based on the advantages. The falling-film evaporator in the commercial air conditioning unit adopts a Freon refrigerant, the Freon refrigerant drops along the horizontal evaporation pipe from top to bottom by the drip distributor on the upper part of the evaporator, and the Freon refrigerant outside the pipe is heated by the chilled water in the evaporation pipe and then evaporated. Therefore, the heat exchange performance of the evaporation tube determines the heat exchange performance of the falling film evaporator.
In a traditional flooded evaporator, a large amount of refrigerant is filled in the evaporator, and an evaporation tube horizontally arranged in the evaporator is soaked in the refrigerant; the surface of the evaporating pipe is provided with a plurality of machined cavities, which can provide a vaporization core required by the freon refrigerant during the nucleate boiling, and greatly improve the heat exchange performance of the flooded evaporator. In the falling film evaporator, however, the refrigerant is dripped from top to bottom row by row and is contacted with the evaporation tube, so that on one hand, the refrigerant is ensured to rapidly enter a cavity of the outer teeth of the heat exchange tube, and the generation of dry spots on part of the surface due to insufficient refrigerant is prevented; on the other hand, the refrigerant is required to be ensured to rapidly extend along the axial direction and the circumferential direction on the outer surface of the tube, so that the generation of dry spots is prevented, and the thermal resistance is reduced.
In summary, the conventional flooded evaporator tube can only provide a vaporization core for evaporation, and cannot drain and spread freon refrigerant, which means that falling film evaporation cannot be completely realized.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model is that falling liquid film evaporation can not be realized completely to traditional flooded evaporator tube to a heat exchange tube, heat exchanger and air conditioner are provided.
In order to solve the above problem, the utility model provides a heat exchange tube, include:
a tube base;
the outer wall of the tube base body is provided with an outer rib structure, the cross section of the outer rib structure is V-shaped, and an evaporation cavity with a triangular cross section is formed between adjacent outer rib structures.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Preferably, the surface of the outer rib structure is provided with a first notch structure.
Preferably, the bottom surface of the evaporation cavity is the outer wall of the tube base body, and the bottom surface of the evaporation cavity is provided with a second notch structure.
Preferably, the outer rib structure is provided with a plurality of outer rib structures, the plurality of outer rib structures are arranged along the circumferential direction of the outer wall of the tube base body and respectively extend spirally on the outer wall of the tube base body along the axis of the tube base body, and the evaporation cavity is in a spiral channel shape.
Preferably, the outer wall of the pipe base body is further provided with rectangular grooves which are uniformly distributed along the circumferential direction, the rectangular grooves extend along the axial direction of the pipe base body, and the outer rib structure is divided into sections by the rectangular grooves.
Preferably, the outer rib structure is arranged at 30-75 per inch in the axial direction of the tube base, and/or the angle of the two V-shaped portions of the outer rib structure is α, β, respectively, with α being 45-89.9 °, β being 45-89.9 °, and/or the helix angle of the outer rib structure being 0.2-2.5 °, and/or the thickness c of the outer rib structure being 0.1-0.15 mm.
Preferably, the width a of the evaporation cavity is 0.35-0.85mm, and/or the height b of the evaporation cavity is 0.3-0.6 mm.
Preferably, the number of the rectangular grooves is 20-50, and/or the width s of the rectangular grooves is 0.2-0.5 mm.
A heat exchanger adopts any one of the heat exchange tubes.
An air conditioner adopts any one of the heat exchange pipes.
The utility model provides a heat exchange tube, heat exchanger and air conditioner have following beneficial effect at least:
the utility model discloses a heat exchange tube, the inside evaporation chamber that forms triangle-shaped helical coiled passage of spiral outer rib structure, vaporization core is in large quantity, outwards forms V-arrangement spiral runner, cooperation rectangular channel, and refrigerant hoop and axial flow are effectual, and heat transfer capacity is strong.
Drawings
Fig. 1 is a structural sectional view of a heat exchange tube according to an embodiment of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is an axial projection view of a heat exchange tube according to an embodiment of the present invention.
The reference numerals are represented as:
1. a tube base; 2. an outer rib structure; 3. an evaporation chamber; 4. a first kerf structure; 5. a second kerf structure; 6. a rectangular groove.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
With reference to fig. 1 to 3, an embodiment of the present invention provides a heat exchange tube, including: a tube base 1; the outer wall of the tube base body 1 is provided with an outer rib structure 2, the cross section of the outer rib structure 2 is V-shaped, and an evaporation cavity 3 with a triangular cross section is formed between the adjacent outer rib structures 2.
The heat exchange tube that this embodiment provided adopts a triangle-shaped's evaporation chamber structure, provides a vaporization core for the evaporation of refrigerant, is favorable to refrigerant evaporation heat transfer, and 2 surfaces of V-arrangement outer rib structure are the V-arrangement groove, can provide the refrigerant at the flow ability on heat exchange tube surface, can guarantee that the refrigerant extends at outside of tubes surface along axial and circumference rapidly.
Preferably, the surface of the outer rib structure 2 is provided with a first notch structure 4, the bottom surface of the evaporation cavity 3 is the outer wall of the tube base body 1, and the bottom surface of the evaporation cavity 3 is provided with a second notch structure 5. The incision is evenly seted up to the inside and outside of the V-arrangement outer rib structure 2 that encloses into evaporation chamber 3 at the inner wall of evaporation chamber 3, can provide bigger vaporization core for refrigerant evaporation heat transfer, when the refrigerant drips in the fin outside, increases refrigerant and heat exchange tube external tooth area of contact, promotes heat exchange efficiency.
Preferably, the outer rib structure 2 is provided in plurality, and the plurality of outer rib structures 2 are arranged along the outer wall of the tube base 1 in the circumferential direction and respectively extend spirally on the outer wall of the tube base 1 along the axis of the tube base 1, and the evaporation cavity 3 is shaped as a spiral channel. The outer rib structure 2 spirally surrounds along the axial direction of the heat exchange tube, so that the refrigerant can flow in the circumferential direction and the axial direction, and the heat convection is enhanced.
Preferably, the outer wall of the tube base body 1 is further provided with rectangular grooves 6 uniformly distributed along the circumferential direction, the rectangular grooves 6 extend along the axial direction of the tube base body 1, the outer rib structures 2 are divided into sections by the rectangular grooves 6, and the bottoms of the grooves are connected with the tube base body 1, namely, are overlapped with the bottoms of the evaporation cavities. Rectangular channel 6 that evenly seted up on the circumferential direction is favorable to the refrigerant to extend along the axial, convection current, increases the heat transfer to the refrigerant is along axial convection current back, also is favorable to the refrigerant to extend along axial and circumference, prevents that pipe surface refrigerant from accumulating too much, goes up to take place the phenomenon of splashing when arranging the refrigerant and continue to drip, makes partial refrigerant can not participate in the heat transfer, causes extravagant and the inhomogeneous phenomenon of heat transfer.
Preferably, the outer rib structures 2 are arranged in the axial direction of the tube base body 1 at 30 to 75 per inch, and/or the angles of the two V-shaped portions of the outer rib structures 2 are α and β, respectively, such that α is 45 to 89.9 ° and β is 45 to 89.9 °, and/or the helix angle of the outer rib structures 2 is 0.2 to 2.5 °, and/or the thickness c of the outer rib structures 2 is 0.1 to 0.15 mm.
Preferably, the width a of the evaporation cavity 3 is 0.35-0.85mm, and/or the height b of the evaporation cavity 3 is 0.3-0.6 mm.
Preferably, the number of the rectangular grooves 6 is 20 to 50, and/or the width s of the rectangular grooves 6 is 0.2 to 0.5 mm.
The heat exchange tube of this embodiment, the inside evaporation chamber that forms triangle-shaped helical channel of spiral outer rib structure, the vaporization core is in large quantity, outwards forms V-arrangement spiral runner, cooperation rectangular channel, and the refrigerant ring is effectual with the axial flow, and heat transfer capacity is strong.
A heat exchanger adopts any one of the heat exchange tubes.
An air conditioner adopts any one of the heat exchange pipes.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A heat exchange tube, comprising:
a tube base (1);
the outer wall of the pipe base body (1) is provided with an outer rib structure (2), the cross section of the outer rib structure (2) is V-shaped, and an evaporation cavity (3) with a triangular cross section is formed between the adjacent outer rib structures (2).
2. A heat exchange tube according to claim 1, characterised in that the surface of the outer rib structure (2) is provided with a first notch structure (4).
3. A heat exchange tube according to claim 1, characterised in that the bottom surface of the evaporation chamber (3) is the outer wall of the tube base body (1), the bottom surface of the evaporation chamber (3) being provided with a second notch formation (5).
4. A heat exchange tube according to any one of claims 1 to 3, wherein the outer rib structure (2) is plural, and plural outer rib structures (2) are arranged circumferentially along the outer wall of the tube base (1) and extend spirally on the outer wall of the tube base (1) along the axis of the tube base (1), respectively, and the evaporation chamber (3) is shaped as a spiral channel.
5. A heat exchange tube according to claim 4, characterized in that the outer wall of the tube base body (1) is further provided with rectangular grooves (6) which are uniformly distributed along the circumferential direction, the rectangular grooves (6) extend along the axial direction of the tube base body (1), and the rectangular grooves (6) divide the outer rib structure (2) into segments.
6. A heat exchange tube according to claim 5, characterised in that the outer rib structure (2) is arranged at 30-75 per inch in the axial direction of the tube base (1), and/or that the angles of the two V-shaped portions of the outer rib structure (2) are α, β, respectively, with α -45-89.9 °, β -45-89.9 °, and/or that the helix angle of the outer rib structure (2) is 0.2-2.5 °, and/or that the thickness c of the outer rib structure (2) is 0.1-0.15 mm.
7. A heat exchange tube according to claim 5, characterized in that the width a of the evaporation chamber (3) is 0.35-0.85mm, and/or the height b of the evaporation chamber (3) is 0.3-0.6 mm.
8. A heat exchange tube according to claim 5, characterized in that the number of the rectangular grooves (6) is 20-50, and/or the width s of the rectangular grooves (6) is 0.2-0.5 mm.
9. A heat exchanger, characterized in that a heat exchange tube according to any one of claims 1 to 8 is used.
10. An air conditioner characterized in that the heat exchange pipe according to any one of claims 1 to 8 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922198538.9U CN211400922U (en) | 2019-12-10 | 2019-12-10 | Heat exchange tube, heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922198538.9U CN211400922U (en) | 2019-12-10 | 2019-12-10 | Heat exchange tube, heat exchanger and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211400922U true CN211400922U (en) | 2020-09-01 |
Family
ID=72208422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922198538.9U Active CN211400922U (en) | 2019-12-10 | 2019-12-10 | Heat exchange tube, heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211400922U (en) |
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2019
- 2019-12-10 CN CN201922198538.9U patent/CN211400922U/en active Active
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