CN201514141U - Heat exchange tube with rows of pits - Google Patents
Heat exchange tube with rows of pits Download PDFInfo
- Publication number
- CN201514141U CN201514141U CN2009201782072U CN200920178207U CN201514141U CN 201514141 U CN201514141 U CN 201514141U CN 2009201782072 U CN2009201782072 U CN 2009201782072U CN 200920178207 U CN200920178207 U CN 200920178207U CN 201514141 U CN201514141 U CN 201514141U
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- heat exchange
- tube
- exchange tube
- pits
- stainless steel
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Abstract
The utility model relates to a heat exchange tube with rows of pits, which comprises a stainless steel tube. The heat exchange tube is characterized in that the surface of the stainless steel tube is provided with a plurality of rows of pits, and two adjacent rows of pits are arranged in a staggered way. The utility model has the advantages that: firstly, the diameter of the heat exchange tube can be less than 5mm while the heat exchange tube can ensure the heat exchange efficiency, and the heat exchange tube can be easily processed and formed; secondly, due to the small diameter and the corresponding large heat exchange surface area of the tube body, the heat output of the heat exchange tube is high under the conditions with the identical medium temperature and the identical temperature for replacement; and simultaneously the pits on the stainless steel tube are deeper than the spiral grooves on the tube body with the identical diameter, thereby increasing the turbulent flow of the gas in the heat exchange tube, greatly improving the heat exchange coefficient and enhancing the heat exchange effect; thirdly, due to the small diameter of the tube body, the utility model can save the installation space, and the number of the small-diameter heat exchange tubes is obviously smaller than the number of the ordinary heat exchange tubes in the devices with identical heat exchange requirements; fourthly, the utility model prolongs the service life of the heat exchange tube, and compared with the spiral grooves, the pits can reduce the retention and precipitation of impurities in the medium in the heat exchange tube.
Description
Technical field
The utility model is particularly related to the multi-row pit heat exchange tube that a kind of engine cooling apparatus uses.
Background technology
Nowadays the engine of various vehicles institute discharge tail gas has become key factor of air-polluting.Be energy-saving and emission-reduction, need in the vehicles such as automobile, aircraft to use that heat exchange efficiency is higher, the heat exchanger tube of longer service life.
At present, heat exchanger tube in the various vehicle motor cooler for recycled exhaust gases mainly adopts the helical groove pipe, this heat exchanger tube is for improving heat exchange efficiency, on tube wall, be provided with one or two helical grooves, when caliber is difficult to machine-shaping when 5.0mm is following, promptly allow to moulding and also be difficult to reach technological requirement, and caliber is easy to generate the contamination precipitation of medium in the pipe when too small.So more than 10mm, it is big to take up room usually for the diameter of this heat exchanger tube, the appearance and size of corresponding engine cooling apparatus is bigger.
The utility model content
The technical problems to be solved in the utility model is that a kind of multi-row pit heat exchange tube will be provided, this heat exchanger tube diameter when guaranteeing heat exchange efficiency can reach below the 5mm, can save installing space, the impurity of medium is detained precipitation in avoiding again managing, and increases the service life.
Multi-row pit heat exchange tube of the present utility model comprises the stainless steel body, and its special character is: be axially arranged with multi-row pit in the stainless steel tube surface along it, two adjacent row's groove position interlace.
Above-mentioned multi-row pit heat exchange tube, described pit are hemispherical, so that processing and enhancing heat exchange effect.
Above-mentioned multi-row pit heat exchange tube, described pit depth is 0.5: 1～1: 1 with the ratio of the radius of stainless steel body, to strengthen the heat exchange effect.
The utility model has the advantages that:
1, owing to be axially arranged with multi-row pit on the surface of stainless steel body along it, so this heat exchanger tube diameter when guaranteeing heat exchange efficiency can accomplish below the 5mm, and machine-shaping easily.
2, pipe diameter is little, and the heat transfer sheet area ratio that body is relative is big, and under the medium temperature situation identical with the temperature that needs displacement, the heat output of this pipe can be bigger; Pit on the stainless steel body is more many deeply than the helical groove on the same diameter body simultaneously, and the turbulence phenomenon by this heat exchanger tube is increased, and significantly improves the coefficient of heat transfer, strengthens the heat exchange effect.
3, the pipe diameter I is saved installing space, and the quantity of the device minor diameter heat exchanger tube that identical heat exchange requires is obviously lacked than common heat exchanger tube quantity, thus save installing space, thus reduce the appearance and size of engine cooling apparatus.
4, improve service life, pit is detained precipitation with respect to the impurity that helical groove can reduce medium in the pipe, thereby increases the service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
As shown in the figure, this multi-row pit heat exchange tube comprises stainless steel body 1, surface at stainless steel body 1 is axially arranged with multi-row pit 2 along it, present embodiment is an example with two rows, and three rows, four row or more rows also can be set, and its quantity is determined according to the diameter of stainless steel body 1, two adjacent row's pits 2 are staggeredly located, present embodiment pits 2 shapes are example with the hemispherical, and described pit 2 degree of depth are 0.5: 1～1: 1 with the ratio of the radius of stainless steel body 1, to strengthen the heat exchange effect.
Claims (3)
1. a multi-row pit heat exchange tube comprises the stainless steel body, it is characterized in that: be axially arranged with multi-row pit in the stainless steel tube surface along it, two adjacent row's groove position interlace.
2. multi-row pit heat exchange tube according to claim 1 is characterized in that: described pit is a hemispherical.
3. multi-row pit heat exchange tube according to claim 1 and 2 is characterized in that: described pit depth is 0.5: 1～1: 1 with the ratio of the radius of stainless steel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201782072U CN201514141U (en) | 2009-10-22 | 2009-10-22 | Heat exchange tube with rows of pits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201782072U CN201514141U (en) | 2009-10-22 | 2009-10-22 | Heat exchange tube with rows of pits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514141U true CN201514141U (en) | 2010-06-23 |
Family
ID=42485551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201782072U Expired - Fee Related CN201514141U (en) | 2009-10-22 | 2009-10-22 | Heat exchange tube with rows of pits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514141U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788526A (en) * | 2012-09-06 | 2012-11-21 | 四川惊雷压力容器制造有限责任公司 | Three-dimensional thin electrolyte film condenser tube |
| CN107282737A (en) * | 2017-07-26 | 2017-10-24 | 西南石油大学 | A kind of alternating expression fourth born of the same parents heat-transfer pipe extrusion forming device |
| CN107436107A (en) * | 2016-05-26 | 2017-12-05 | 北京天诚同创电气有限公司 | Heat exchange tube, heat exchange system and control method thereof |
| US11421949B2 (en) | 2017-12-21 | 2022-08-23 | Mahle International Gmbh | Flat tube for an exhaust gas cooler |
-
2009
- 2009-10-22 CN CN2009201782072U patent/CN201514141U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788526A (en) * | 2012-09-06 | 2012-11-21 | 四川惊雷压力容器制造有限责任公司 | Three-dimensional thin electrolyte film condenser tube |
| CN107436107A (en) * | 2016-05-26 | 2017-12-05 | 北京天诚同创电气有限公司 | Heat exchange tube, heat exchange system and control method thereof |
| CN107436107B (en) * | 2016-05-26 | 2019-07-12 | 北京天诚同创电气有限公司 | heat exchange tube, heat exchange system and control method thereof |
| CN107282737A (en) * | 2017-07-26 | 2017-10-24 | 西南石油大学 | A kind of alternating expression fourth born of the same parents heat-transfer pipe extrusion forming device |
| US11421949B2 (en) | 2017-12-21 | 2022-08-23 | Mahle International Gmbh | Flat tube for an exhaust gas cooler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20141022 |
|
| EXPY | Termination of patent right or utility model |