CN112944985A - Heat exchange tube, heat exchanger and air conditioner - Google Patents
Heat exchange tube, heat exchanger and air conditioner Download PDFInfo
- Publication number
- CN112944985A CN112944985A CN201911260757.3A CN201911260757A CN112944985A CN 112944985 A CN112944985 A CN 112944985A CN 201911260757 A CN201911260757 A CN 201911260757A CN 112944985 A CN112944985 A CN 112944985A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- outer rib
- exchange tube
- rib structure
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001704 evaporation Methods 0.000 claims abstract description 42
- 230000008020 evaporation Effects 0.000 claims abstract description 41
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 2
- 239000011552 falling film Substances 0.000 description 9
- 238000009834 vaporization Methods 0.000 description 5
- 230000008016 vaporization Effects 0.000 description 5
- 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
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
- F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a heat exchange tube, a heat exchanger and an air conditioner, wherein the heat exchange tube comprises: 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. According to the heat exchange tube, the spiral outer rib structure inwards forms the evaporation cavity of the triangular spiral channel, the evaporation cores are large in number, the V-shaped spiral flow channel is formed outwards, and the heat exchange tube is matched with the rectangular groove, so that the refrigerant has good annular and axial flow effects and strong heat exchange capacity.
Description
Technical Field
The invention belongs to the technical field of heat exchange, and particularly relates to a heat exchange tube, a heat exchanger and an 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.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the traditional flooded evaporation tube cannot completely realize falling film evaporation, so that the heat exchange tube, the heat exchanger and the air conditioner are provided.
In order to solve the above problems, the present invention provides a heat exchange tube comprising:
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 object of the present invention and the technical problems solved thereby can be further achieved by 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 heat exchange tube, the heat exchanger and the air conditioner provided by the invention at least have the following beneficial effects:
according to the heat exchange tube, the spiral outer rib structure inwards forms the evaporation cavity of the triangular spiral channel, the evaporation cores are large in number, the V-shaped spiral flow channel is formed outwards, and the heat exchange tube is matched with the rectangular groove, so that the refrigerant has good annular and axial flow effects and strong heat exchange capacity.
Drawings
FIG. 1 is a structural cross-sectional view of a heat exchange tube of 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
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring 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 present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection 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, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications 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 |
|---|---|---|---|
| CN201911260757.3A CN112944985A (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 |
|---|---|---|---|
| CN201911260757.3A CN112944985A (en) | 2019-12-10 | 2019-12-10 | Heat exchange tube, heat exchanger and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112944985A true CN112944985A (en) | 2021-06-11 |
Family
ID=76225774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911260757.3A Pending CN112944985A (en) | 2019-12-10 | 2019-12-10 | Heat exchange tube, heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112944985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116026178A (en) * | 2023-03-27 | 2023-04-28 | 冰轮环境技术股份有限公司 | Heat exchange tube and processing method thereof |
-
2019
- 2019-12-10 CN CN201911260757.3A patent/CN112944985A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116026178A (en) * | 2023-03-27 | 2023-04-28 | 冰轮环境技术股份有限公司 | Heat exchange tube and processing method thereof |
| CN116026178B (en) * | 2023-03-27 | 2023-06-13 | 冰轮环境技术股份有限公司 | Heat exchange tube and processing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012135983A1 (en) | Improved heat transfer pipe for falling film evaporator | |
| JP2721309B2 (en) | Heat transfer tube | |
| JP2002372390A (en) | Heat exchanger tube for falling film evaporator | |
| US5832995A (en) | Heat transfer tube | |
| KR100466773B1 (en) | Absorption Chiller | |
| CN112944985A (en) | Heat exchange tube, heat exchanger and air conditioner | |
| KR20150084778A (en) | Evaporation heat transfer tube with a hollow caviity | |
| CN211400922U (en) | Heat exchange tube, heat exchanger and air conditioner | |
| CN101458048A (en) | Heat transfer tube for evaporator and method of manufacturing same | |
| JPH11257888A (en) | Heat transfer pipe for flow-down liquid film type evaporator | |
| CN104040281A (en) | Air conditioner | |
| JP3480514B2 (en) | Heat transfer tube for falling film evaporator | |
| CN111947495A (en) | Heat exchange tube and air conditioner | |
| CN211400926U (en) | Heat exchange tube, heat exchanger and air conditioner | |
| CN208860186U (en) | The evaporating heat-exchanging pipe that multilayer minute groove intersects | |
| CN211601684U (en) | Heat exchange tube, heat exchanger and air conditioner | |
| CN210718220U (en) | Heat exchange tube for flooded evaporator | |
| CN209341632U (en) | A kind of evaporation tube | |
| CN112944994A (en) | Heat exchange tube, heat exchanger and air conditioner | |
| CN112944993A (en) | Heat exchange tube, heat exchanger and air conditioner | |
| CN221259601U (en) | Heat exchange tube, heat exchanger and air conditioner | |
| CN212362950U (en) | Heat exchange tube and air conditioner | |
| CN111750725A (en) | Heat exchange tube and air conditioning unit | |
| CN110425778A (en) | A kind of height wing reinforcing condensing heat-exchanging pipe | |
| CN201327336Y (en) | Heat transmission tube for evaporator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |