CN210718226U - High-low fin enhanced condensation heat exchange tube - Google Patents
High-low fin enhanced condensation heat exchange tube Download PDFInfo
- Publication number
- CN210718226U CN210718226U CN201921189774.8U CN201921189774U CN210718226U CN 210718226 U CN210718226 U CN 210718226U CN 201921189774 U CN201921189774 U CN 201921189774U CN 210718226 U CN210718226 U CN 210718226U
- Authority
- CN
- China
- Prior art keywords
- fin
- heat exchange
- exchange tube
- condensation
- spiral outer
- 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.)
- Active
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A high-low fin enhanced condensation heat exchange tube comprises a tube body and primary outer fins which are in a spiral state and are in an integral structure with the tube body, wherein the space between every two adjacent primary outer fins forms a mutually communicated channel structure, and sharp secondary outer fins are arranged at the bottom of a channel; the top of the first-stage spiral outer fin is provided with a first groove which is staggered and communicated with the channel, so that a wing tip structure with uneven height is formed; the secondary spiral outer fins are provided with second grooves which are staggered and communicated with the grooves, and meanwhile, the inner surface of the pipe body is provided with inner threaded ribs which extend spirally along the axial direction. The advantages are that: the surface area of condensation heat exchange inside and outside the pipe is increased, the liquid film can be thinned due to the complex high-low fin structure outside the pipe, the liquid discharge speed of the refrigerant on the fin surface is increased, the heat exchange effect of the condensation pipe is improved, and the flowing state of fluid inside the pipe is improved due to the internal thread rib structure inside the pipe, so that the effect of enhancing condensation heat exchange inside and outside the pipe is realized.
Description
Technical Field
The utility model belongs to the technical field of condensing heat exchange tube in air conditioner, refrigerating system, concretely relates to condensation heat exchange tube is reinforceed to high low wing.
Background
The condensing heat exchanger is an indispensable component in a central air-conditioning system, and the condenser pipe is a core component of the condensing heat exchanger, and the heat exchange performance of the condenser pipe determines the performance of the condensing heat exchanger. In recent years, with the development of the technology in the field of refrigeration and air conditioning, the technology for manufacturing heat exchangers is continuously updated, and the design and manufacturing technology of heat exchange tubes for heat exchangers is also continuously updated and developed.
The water-cooled condenser used in centrifugal and screw refrigerating machine set is mainly horizontal shell-and-tube heat exchanger. In the horizontal shell-and-tube condenser, the heat exchange tubes are horizontally arranged, refrigerant steam condenses and exchanges heat outside the tubes to form a liquid film, but the existence of the condensed liquid film increases heat transfer resistance, so that temperature difference loss is caused to reduce the refrigeration efficiency, and the heat exchange performance of the heat exchange tubes is influenced. Therefore, in order to improve the heat exchange performance of the heat exchange pipe, an enhanced heat transfer technology is required. In order to further improve the performance of the condensing heat exchanger, fins are formed on the outer surface of the heat exchange tube through machining, gaps are pressed on the fins to form saw-tooth fins, and the saw-tooth fins are utilized to reduce a liquid film and promote the flow of the liquid film, so that the heat exchange effect is improved. For example, a condensation heat transfer tube disclosed in chinese patent application publication No. CN101813433A uses a fin structure with a fin top having a groove, and the formed zigzag fins can thin or pierce a condensate film, thereby enhancing the condensation heat transfer effect to a certain extent.
In view of the above-mentioned prior art, the applicant has made an advantageous design, and the technical solutions described below have been made in this context.
Disclosure of Invention
The utility model aims at providing a condensation heat exchange tube is reinforceed to height wing makes fin surface liquid film attenuation through setting up of the high low wing point structure of outside of tubes surface for the flowing back speed of refrigerant, and the whereby in order to reach the heat transfer effect of reinforceing the condensation.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a high-low fin reinforced condensation heat exchange tube is characterized in that: including the body that has the inner chamber, the body surface is provided with the one-level outer fin that is heliciform distribution and is a body structure with the body the space that forms between the adjacent one-level outer fin of spiral constitutes the channel structure of intercommunication each other, one-level outer fin top of spiral is provided with and not only interlocks but also communicating first recess with the channel, first recess extends the direction interval arrangement along the screw thread of one-level outer fin of spiral, makes one-level outer fin top form the wing tip structure of the unevenness of height.
Preferably, the bottom of the channel is provided with a sharp secondary helical outer fin structure.
Preferably, the top of the secondary spiral outer fin is provided with a second groove which is staggered and communicated with the channel.
Preferably, the cross-sectional profile of the second groove includes an arc shape, a V shape, and a U shape.
Preferably, the inner surface of the pipe body is provided with an internal thread rib which is of an integral structure with the pipe body.
Preferably, the first groove at the top of the primary spiral outer fin and the axial direction of the tube body form an included angle of 10-80 degrees, and the depth is 0.3-1.0 mm.
Preferably, the height of the primary helical outer fin from the bottom to the top is 0.6-2.0 mm, the helical angle is 0.1-2.0 degrees, and the number of the primary helical outer fins per inch in the axial direction is 20-60.
Preferably, the number of the high and low fin tips of each circle of the primary spiral outer fin in the circumferential direction is 50-200, the height of the high fin is 0.6-2.0 mm, and the height of the low fin is 0.4-1.8 mm.
Preferably, the height of the secondary spiral outer fin at the bottom of the channel is 0.2-0.6 mm, and the spiral angle is consistent with that of the primary spiral outer fin.
Preferably, the second groove depth at the top of the secondary helical outer fin is 0.1-0.4 mm, and the number of circumferential grooves is 50-200.
Preferably, the height of the internal thread rib is 0.1-0.5 mm, the number of the circumferential internal thread ribs is 8-60, and the spiral angle is 1-60 degrees.
The utility model relates to an improvement of condensation heat exchange tube surface structure compares with prior art and has following advantage:
the top of the spiral fin outside the tube of the high-low fin reinforced condensation heat exchange tube disclosed by the preferred embodiment of the utility model is provided with the uneven fin tip structure, which can destroy the surface tension of a condensate film, thin the liquid film, reduce the thermal resistance and effectively increase the heat exchange area, thereby improving the heat transfer coefficient of the outer surface of the tube; the bottom of the channel between the spiral outer fins is provided with a sharp secondary spiral outer fin, so that the liquid discharge speed of condensate at the bottom of the channel is increased, and the heat exchange effect of the condenser pipe is improved; the internal thread ribs are arranged on the inner surface of the pipe, which is beneficial to improving the flowing state of fluid in the pipe, thereby thinning a boundary layer, reducing the thermal resistance of heat exchange in the pipe, optimizing and combining the heat exchange efficiency inside and outside the pipe, and improving the overall heat exchange performance of the condensation heat exchange pipe.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a three-view diagram of a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention;
fig. 4 is a three-view diagram of a second embodiment of the present invention.
In the figure: 1. the novel spiral fin comprises a tube body, 2, a primary spiral outer fin (21, a first groove, 211, a fin tip), 3, a groove, 4, a secondary spiral outer fin (41, a second groove) and 5, internal threaded ribs.
Detailed Description
The technical practice and advantages of the present invention will be further clarified by the following description with reference to the accompanying drawings and specific examples, but the description of the embodiments is not intended to limit the technical solutions of the present invention, and any equivalent changes in form and insubstantial changes made according to the inventive concept should be considered as the technical solution of the present invention.
Example 1:
referring to fig. 1 and 2, the structural schematic diagram and the three-dimensional view of the first embodiment of the high-low fin reinforced condensation heat exchange tube of the present invention are shown, in the preferred embodiment, the heat exchange tube includes a tube body 1 having an inner cavity, the outer surface of the tube body 1 is provided with one-level outer fins 2 which are spirally distributed and are of an integral structure with the tube body 1, the space formed between the adjacent one-level spiral outer fins 2 forms a channel 3 structure which is communicated with each other, the top of the one-level spiral outer fins 2 is provided with first grooves 21 which are staggered and communicated with the channel 3, the first grooves 21 are arranged along the thread extending direction of the one-level spiral outer fins 2 at intervals, so that the top of the one-level spiral outer fins 2 forms a fin tip 211 structure with uneven height.
The bottom of the channel 3 is provided with a sharp secondary spiral outer fin 4 structure. The top of the secondary spiral outer fin 4 is provided with a second groove 41 which is staggered and communicated with the channel 3. The cross-sectional profile of the second groove 41 is U-shaped. The inner surface of the pipe body 1 is provided with an inner threaded rib 5 which is integrated with the pipe body 1. The first groove 21 at the top of the primary spiral outer fin 2 and the axial included angle of the tube body 1 are 45 degrees, and the depth is 0.5 mm. The height of the primary spiral outer fins 2 from the bottom to the top is 1.0mm, the spiral angle is 0.5 degrees, and the number of the primary spiral outer fins 2 per inch in the axial direction is 46. The number of the high and low fin tips 211 of each circle of the first-stage spiral outer fin 2 in the circumferential direction is 103, the height of the high fins is 1.0mm, and the height of the low fins is 0.8 mm. The height of the secondary spiral outer fin 4 at the bottom of the channel 3 is 0.3mm, and the spiral angle is consistent with that of the primary spiral outer fin 2. The depth of the second groove 41 at the top of the secondary spiral outer fin 4 is 0.2mm, and the number of the circumferential grooves is 103. The height of the internal thread ribs 5 is 0.4mm, the number of the circumferential internal thread ribs is 45, and the spiral angle is 40 degrees.
Example 2:
referring to fig. 3 and 4, there are shown a schematic structural diagram and three views of a second embodiment of the high-low fin reinforced condensation heat exchange tube of the present invention, in the preferred embodiment, the basic structure and principle are the same as those of the first embodiment, except that the cross-sectional profile of the second groove 41 of the heat exchange tube is V-shaped.
The utility model relates to a condensation heat exchange tube is reinforceed to high low wing, the first recess 21 on 2 tops of its primary screw outer fin forms the wing point 211 structure of unevenness, is of value to the surface tension who destroys the condensate liquid film, makes the liquid film attenuation, reduces the thermal resistance to reach and reduce the effect that the liquid film thickness improves the heat transfer that condenses. Meanwhile, the complex three-dimensional structure also increases the heat exchange area, thereby further improving the heat exchange efficiency of the heat exchange tube. The bottom of the channel 3 is provided with a sharp secondary spiral outer fin 4, and the part of the channel is provided with a second groove 41, so that the liquid discharge speed of condensate at the bottom of the channel can be increased, and the heat exchange effect of the condenser pipe can be improved; the inner surface of the tube body 1 is provided with the inner threaded ribs 5, which is beneficial to improving the flowing state of fluid in the tube, thereby thinning a boundary layer, reducing the thermal resistance of heat exchange in the tube and improving the overall heat exchange performance of the condensation heat exchange tube.
To sum up, the technical scheme provided by the utility model makes up the shortages and deficiencies in the prior art, completes the invention task, and realizes the technical effects described in the technical effect column by the applicant, and the technical scheme is an ultimate technical scheme.
Claims (11)
1. A high-low fin reinforced condensation heat exchange tube is characterized in that: including body (1) that has the inner chamber, body (1) surface is provided with one-level spiral outer fin (2) that are the body structure with body (1) that the heliciform distributes channel (3) structure that the space that forms between adjacent one-level spiral outer fin (2) constitutes mutual intercommunication, one-level spiral outer fin (2) top is provided with and not only interlocks but also communicating first recess (21) with channel (3), screw extension direction interval arrangement of one-level spiral outer fin (2) is followed in first recess (21), makes one-level spiral outer fin (2) top form wing point (211) structure of unevenness.
2. The high-low fin condensation-enhanced heat exchange tube of claim 1, wherein: the bottom of the channel (3) is provided with a sharp secondary spiral outer fin (4) structure.
3. The high-low fin reinforced condensation heat exchange tube of claim 2, wherein: and the top of the secondary spiral outer fin (4) is provided with a second groove (41) which is staggered and communicated with the channel (3).
4. The high-low fin condensation-enhanced heat exchange tube of claim 3, wherein: the cross-sectional profile of the second groove (41) includes an arc shape, a V shape, and a U shape.
5. The high-low fin condensation-enhanced heat exchange tube of claim 1, wherein: the inner surface of the pipe body (1) is provided with an inner threaded rib (5) which is integrated with the pipe body (1).
6. The high-low fin condensation-enhanced heat exchange tube of claim 1, wherein: the first groove (21) at the top of the primary spiral outer fin (2) and the tube body (1) form an axial included angle of 10-80 degrees, and the depth is 0.3-1.0 mm.
7. The high-low fin condensation-enhanced heat exchange tube of claim 1, wherein: the height of the primary spiral outer fins (2) from the bottom to the top is 0.6-2.0 mm, the spiral angle is 0.1-2.0 degrees, and the number of the primary spiral outer fins (2) per inch in the axial direction is 20-60.
8. The high-low fin condensation-enhanced heat exchange tube of claim 1, wherein: the number of the high and low fin tips (211) of each circle of the first-stage spiral outer fin (2) in the circumferential direction is 50-200, the height of the high fins is 0.6-2.0 mm, and the height of the low fins is 0.4-1.8 mm.
9. The high-low fin reinforced condensation heat exchange tube of claim 2, wherein: the height of the secondary spiral outer fin (4) at the bottom of the channel (3) is 0.2-0.6 mm, and the spiral angle is consistent with that of the primary spiral outer fin (2).
10. The high-low fin condensation-enhanced heat exchange tube of claim 3, wherein: the depth of the second grooves (41) at the tops of the secondary spiral outer fins (4) is 0.1-0.4 mm, and the number of the circumferential grooves is 50-200.
11. The high-low fin condensation-enhanced heat exchange tube of claim 5, wherein: the height of the internal thread ribs (5) is 0.1-0.5 mm, the number of the circumferential internal thread ribs is 8-60, and the spiral angle is 1-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921189774.8U CN210718226U (en) | 2019-07-26 | 2019-07-26 | High-low fin enhanced condensation heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921189774.8U CN210718226U (en) | 2019-07-26 | 2019-07-26 | High-low fin enhanced condensation heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210718226U true CN210718226U (en) | 2020-06-09 |
Family
ID=70927811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921189774.8U Active CN210718226U (en) | 2019-07-26 | 2019-07-26 | High-low fin enhanced condensation heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210718226U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425778A (en) * | 2019-07-26 | 2019-11-08 | 江苏萃隆精密铜管股份有限公司 | A kind of height wing reinforcing condensing heat-exchanging pipe |
| CN111678374A (en) * | 2020-06-23 | 2020-09-18 | 珠海格力电器股份有限公司 | Heat exchange tubes and air conditioners |
| CN111947497A (en) * | 2020-08-25 | 2020-11-17 | 珠海格力电器股份有限公司 | Heat exchange tube and air conditioning unit |
-
2019
- 2019-07-26 CN CN201921189774.8U patent/CN210718226U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425778A (en) * | 2019-07-26 | 2019-11-08 | 江苏萃隆精密铜管股份有限公司 | A kind of height wing reinforcing condensing heat-exchanging pipe |
| CN111678374A (en) * | 2020-06-23 | 2020-09-18 | 珠海格力电器股份有限公司 | Heat exchange tubes and air conditioners |
| CN111947497A (en) * | 2020-08-25 | 2020-11-17 | 珠海格力电器股份有限公司 | Heat exchange tube and air conditioning unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210718226U (en) | High-low fin enhanced condensation heat exchange tube | |
| EP2354743A2 (en) | Double-pipe heat exchanger | |
| CN104654886A (en) | Internal threaded heat-transfer copper pipe | |
| CN211400917U (en) | Falling film heat exchange tube, falling film heat exchanger and air conditioner | |
| CN110849196B (en) | A high-efficiency liquid-filled heat exchange tube | |
| CN110425778A (en) | A kind of height wing reinforcing condensing heat-exchanging pipe | |
| CN101949662B (en) | Novel high-efficiency heat exchange pipe for condenser of electric refrigeration unit | |
| CN110195994B (en) | A high-efficiency composite double-sided reinforced heat transfer tube | |
| CN111854503A (en) | Condenser pipe, condenser and air conditioning system | |
| CN110425774A (en) | A kind of compound hole evaporating heat-exchanging pipe | |
| CN216245777U (en) | Heat transfer pipe with transition surface on fin | |
| CN216245776U (en) | Heat exchange tube, heat exchanger and air conditioning equipment | |
| CN201803634U (en) | Novel efficient heat exchange tube used for condenser of electric refrigerating unit | |
| CN211503800U (en) | Falling film heat exchange tube, falling film heat exchanger and air conditioner | |
| CN211601680U (en) | Falling film heat exchange tube, falling film heat exchanger and air conditioner | |
| CN205300356U (en) | Heat exchange copper pipe | |
| CN201138153Y (en) | Heat exchanging tube for condenser | |
| CN104654881A (en) | Light and effective heat transfer copper pipe | |
| CN108413803A (en) | Pipe wing monomer and heat exchanger, air conditioner with it | |
| CN201803631U (en) | Highly-efficient heat exchange tube for electric refrigeration unit condenser | |
| CN204388681U (en) | Combination flute profile heat exchanging copper pipe | |
| CN204388682U (en) | Seamless internal thread heat transmission copper pipe | |
| CN210718220U (en) | Heat exchange tube for flooded evaporator | |
| CN201803635U (en) | High-efficiency heat exchange tube for electrical chiller set condenser | |
| CN218410848U (en) | High-efficient condensation heat exchange tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |