CN201273787Y - Helical groove heat exchange tube with fins - Google Patents
Helical groove heat exchange tube with fins Download PDFInfo
- Publication number
- CN201273787Y CN201273787Y CNU2008201329764U CN200820132976U CN201273787Y CN 201273787 Y CN201273787 Y CN 201273787Y CN U2008201329764 U CNU2008201329764 U CN U2008201329764U CN 200820132976 U CN200820132976 U CN 200820132976U CN 201273787 Y CN201273787 Y CN 201273787Y
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- matrix
- spiral
- fin
- heat exchanger
- spiral grooves
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a spiral groove heat exchange tube with a fin, which comprises a tube-shaped matrix. The outer surface of the matrix is provided with a spiral groove through pressing; the spiral groove protrudes inwards; the inner surface of the matrix is provided with a spiral bulge; and the outer surface of the matrix is fixedly connected with a spiral fin. The heat exchange tube can be provided with a single spiral groove, two spiral grooves or a plurality of spiral grooves. The utility model can quicken the flow of the viscous fluid, eliminate the phenomenon of stratified turbulence, and effectively enhance the convection and heat exchange in the tube, thereby improving the overall efficiency of the air cooler.
Description
Technical field
The utility model relates to heat exchanger tube, particularly the heat exchanger tube of aerial cooler use.
Background technology
For many years, generally adopt water cooler in industrial circles such as metal heat treatmet, forging, hydraulic pressure, modal combination is that the plate type heat exchanger of oil-water heat exchange adds glass fibre reinforced plastics cooling tower or plate type heat exchanger adds the cooling pond.Its major defect is: (1) evaporation water consumption is big.Because no matter the evaporation of moisture all can't be avoided in cooling tower or cooling pond, in fact they rely on evaporation to obtain to cool off to a great extent.(2) in the northern area of China, the water projection of glass fibre reinforced plastics cooling tower can cause freezed in winter, makes the equipment operation produce obstacle.(3) adopt the heat exchanger of recirculated cooling water to be difficult to later on avoid occurring faults such as fouling or runner obstruction, greatly influence the heat exchange effect at the operation certain hour.
Adopt aerial cooler will avoid above-mentioned shortcoming fully, existing aerial cooler is made up of heat exchanger tube and fan, heat exchanger tube is to be coiled to form by copper pipe, the inner and outer wall of copper pipe all is a light pipe, when the medium that is cooled is higher oils of viscosity or organic liquid, can produce bigger resistance with the inwall of copper pipe, cause flow velocity to descend on the one hand, to cause media flow layering turbulent flow phenomenon to occur on the other hand, it is the central flow velocity height of medium, low even the stagnation of peripheral flow velocity, tangible layering transition appears in medium, thereby reduces the overall thermal conducting power.
The utility model content
For addressing the above problem, the purpose of this utility model provides a kind of spiral grooves heat exchanger tube that has fin, can accelerate the flowing velocity of viscous fluid, eliminates layering turbulent flow phenomenon, and heat convection in the enhanced tube effectively, thereby improve the overall efficiency of aerial cooler.
For achieving the above object, the utility model is by the following technical solutions:
A kind of spiral grooves heat exchanger tube that has fin has the matrix of tubular, and the outer surface compression moulding of described matrix has spiral groove, and this spiral groove is inwardly outstanding, forms the spirality projection at the matrix inner surface.The outer surface of described matrix is connected with the spirality fin.Groove can be single-screw groove, double helix groove or many spiral grooves.
The utlity model has following beneficial effect:
One. avoided the shortcoming of recirculated water cooling mode water consumption, the interior easily fouling of pipe and cooling tower freezed in winter.
Two. compare with light pipe, when using the heat exchanger tube transfer of highly viscous fluid of spiral grooves, can make fluid in pipe, produce screw, can accelerate the flowing velocity of viscous fluid, eliminate layering turbulent flow phenomenon, thereby heat convection in the enhanced tube effectively significantly improves overall heat-transfer coefficient.According to measuring and calculating, in suitable reynolds number range, the spiral grooves heat exchanger tube approximately can improve overall heat-transfer coefficient 10～15%.
Three. after overall heat-transfer coefficient improved, the pipe of heat exchanger tube row number can correspondingly reduce in the aerial cooler, has both reduced manufacturing cost, can make the corresponding reduction of total voltage of fan again, and power consumption descends thereupon, thereby realize energy-conservation, reduce discharging, consumption reduction.
Four. the spiral goove barrel is easy to processing, can produce in enormous quantities fast, and the helical angle of spiral grooves or pitch can be adjusted as required, change, and adapting to the levels of viscosity of different medium, and takes into account flow resistance.Under the constant condition of holding tube outside fin heat-transfer capability, by selecting suitable helical angle or pitch, improve the inboard heat convection of pipe, total heat-transfer capability is increased.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment two.
Fig. 4 is the cutaway view of Fig. 3.
Fig. 5 is the structural representation of the utility model embodiment three.
Fig. 6 is the cutaway view of Fig. 5.
The specific embodiment
Embodiment one, please refer to Fig. 1, Fig. 2, the utility model is a kind of spiral grooves heat exchanger tube that has fin, have the matrix 1 of tubular, the outer surface of matrix 1 is connected with spirality fin 2, and spirality fin 2 adopts high-frequency welding manner or alternate manner and matrix 1 affixed.The outer surface compression moulding of matrix 1 has single-screw groove 3, and this single-screw shape groove 3 is inwardly outstanding, forms single-screw shape projection 4 at matrix 1 inner surface, and single-screw shape projection 4 can make fluid produce screw.
Embodiment two, please refer to Fig. 3, Fig. 4, the utility model is a kind of spiral grooves heat exchanger tube that has fin, have the matrix 1 of tubular, the outer surface of matrix 1 is connected with spirality fin 2, and spirality fin 2 adopts high-frequency welding manner or alternate manner and matrix 1 affixed.The outer surface compression moulding of matrix 1 has double helix groove 5, and this Double-spiral groove 5 is inwardly outstanding, forms Double-spiral projection 6 at matrix 1 inner surface, and Double-spiral projection 6 can make fluid produce screw.
Embodiment three, please refer to Fig. 5, Fig. 6, the utility model is a kind of spiral grooves heat exchanger tube that has fin, have the matrix 1 of tubular, the outer surface of matrix 1 is connected with spirality fin 2, and spirality fin 2 adopts high-frequency welding manner or alternate manner and matrix 1 affixed.The outer surface compression moulding of matrix 1 has many spiral grooves 7, and these many spiral grooves 7 are inwardly outstanding, forms many spiralitys projection 8 at the inner surface of matrix 1, and many spiralitys projection 8 can make fluid produce screw.
During with spiral grooves heat exchanger tube transfer of highly viscous fluid of the present utility model, can make fluid in pipe, produce screw, can accelerate the flowing velocity of viscous fluid, eliminate layering turbulent flow phenomenon, thereby heat convection in the enhanced tube effectively, the purpose that overall heat-transfer coefficient is significantly improved.The helical angle of groove can be adjusted in quite on a large scale, conducts heat and the impedance match requirement thereby adapt to different medium.
Claims (5)
1. spiral grooves heat exchanger tube that has fin has the matrix of tubular, and it is characterized in that: the outer surface compression moulding of described matrix has spiral groove, and this spiral groove is inwardly outstanding, forms the spirality projection at the matrix inner surface.
2. the spiral grooves heat exchanger tube that has fin as claimed in claim 1, it is characterized in that: the outer surface of described matrix is connected with the spirality fin.
3. the spiral grooves heat exchanger tube that has fin as claimed in claim 1 is characterized in that: described groove is the single-screw groove.
4. the spiral grooves heat exchanger tube that has fin as claimed in claim 1 is characterized in that: described groove is the double helix groove.
5. the spiral grooves heat exchanger tube that has fin as claimed in claim 1 is characterized in that: described groove is many spiral grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201329764U CN201273787Y (en) | 2008-07-30 | 2008-07-30 | Helical groove heat exchange tube with fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201329764U CN201273787Y (en) | 2008-07-30 | 2008-07-30 | Helical groove heat exchange tube with fins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201273787Y true CN201273787Y (en) | 2009-07-15 |
Family
ID=40884134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201329764U Expired - Lifetime CN201273787Y (en) | 2008-07-30 | 2008-07-30 | Helical groove heat exchange tube with fins |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201273787Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963471A (en) * | 2010-01-11 | 2011-02-02 | 阿尔西制冷工程技术（北京）有限公司 | Anti-corrosion light high-efficiency finned type heat exchanger |
| CN102933899A (en) * | 2010-05-31 | 2013-02-13 | 西门子公司 | Device for producing fixture units for steam generator pipes |
| CN104729308A (en) * | 2015-03-18 | 2015-06-24 | 保定市金能换热设备有限公司 | Mesh belt type continuous heating carburizing furnace door cover flame waste heat recovery reusing device |
| CN107228580A (en) * | 2017-08-01 | 2017-10-03 | 芜湖精达机械制造有限公司 | A kind of high efficiency heat exchanger |
| CN111238268A (en) * | 2020-01-19 | 2020-06-05 | 西安交通大学 | Array type built-in spiral groove external spiral track layer plate type heat exchange structure |
-
2008
- 2008-07-30 CN CNU2008201329764U patent/CN201273787Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963471A (en) * | 2010-01-11 | 2011-02-02 | 阿尔西制冷工程技术（北京）有限公司 | Anti-corrosion light high-efficiency finned type heat exchanger |
| CN102933899A (en) * | 2010-05-31 | 2013-02-13 | 西门子公司 | Device for producing fixture units for steam generator pipes |
| CN104729308A (en) * | 2015-03-18 | 2015-06-24 | 保定市金能换热设备有限公司 | Mesh belt type continuous heating carburizing furnace door cover flame waste heat recovery reusing device |
| CN104729308B (en) * | 2015-03-18 | 2016-07-06 | 保定市金能换热设备有限公司 | Net belt type laser heating carburizer firedoor hood flame waste heat recovery reuse means |
| CN107228580A (en) * | 2017-08-01 | 2017-10-03 | 芜湖精达机械制造有限公司 | A kind of high efficiency heat exchanger |
| CN111238268A (en) * | 2020-01-19 | 2020-06-05 | 西安交通大学 | Array type built-in spiral groove external spiral track layer plate type heat exchange structure |
| CN111238268B (en) * | 2020-01-19 | 2021-04-13 | 西安交通大学 | Array type built-in spiral groove external spiral track layer plate type heat exchange structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090715 |