CN2323345Y - Flat ribbed metal tube - Google Patents
Flat ribbed metal tube Download PDFInfo
- Publication number
- CN2323345Y CN2323345Y CN 97250117 CN97250117U CN2323345Y CN 2323345 Y CN2323345 Y CN 2323345Y CN 97250117 CN97250117 CN 97250117 CN 97250117 U CN97250117 U CN 97250117U CN 2323345 Y CN2323345 Y CN 2323345Y
- Authority
- CN
- China
- Prior art keywords
- flat
- metal
- tube
- fin
- inwall
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to a heat transferring element which is mainly used for a cooler through which liquid and gas can carry out the heat exchange, and the utility model particularly relates to a forced-oil and forced-air cooler for a transformer. The utility model comprises an elliptical or drip-shaped, etc. flat basic pipes, fins, etc. The utility model is characterized in that the fins are extruded from the outer walls of the flat basic pipes; the inner wall of each pipe is provided with straight ribs or spiral ribs, or the inner wall of the pipe is combined with another kind of metal pipe whose inner wall is provided with the straight ribs or the spiral ribs or is a smooth surface; the outer edge of each fin is provided with a cutting opening or a slot opening, or the outer edge near each fin is provided with corrugations. The utility model has the advantages of high thermal efficiency, good fabrication process condition, high reliability, etc.
Description
The utility model belongs to heat transfer element, is applicable to that mainly liquid and gas carry out the cooler of heat exchange, particularly transformer forced oil-circulation forced air cooler.
At present, be to improve heat transfer efficiency, the metal flat finned tube that adopts on forced air cooler is oval or drip to be with metal fin or to wind with metal tape on the parent tube outer wall of shape and constitute fin, handles and constitutes through surface metal plating layer again.Its weak point is: 1. owing to existing thermal contact resistance between metal fin and parent tube, so heat transfer efficiency is low; 2. the inwall of parent tube is smooth surface, and the intraductal heat transfer area is restricted, and heat transfer efficiency is restricted; 3. owing to the coating processing will be carried out in the surface, therefore, not only fabrication process condition is poor, but also contaminated environment causes social effects of pollution.
The purpose of this utility model is to overcome the weak point in the above-mentioned prior art, and heat transfer efficiency height, a kind of metal flat finned tube that fabrication process condition is good are provided.
The purpose of this utility model can realize by following measure: it comprises flat parent tube, fins etc. such as an ellipse or a shape, and its special character is: the integral fins that squeezes out is arranged on the outer wall of flat parent tube, and the fin on promptly flat parent tube and its outer wall is an integral body; On the inwall of flat parent tube, be provided with straight rib or spiral ribs; On the inwall of flat parent tube, be compounded with inwall and have straight rib or have spiral ribs or be the metal tube of the another kind of metal of smooth surface, promptly constitute bimetallic flat integrally finned tubes; Outer rim at fin inwardly is provided with otch or notch, the fin rightabout inclination each other on otch or notch both sides; Be provided with ripple at outer rim place, and corrugated ring is around flat parent tube near fin.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 inwall is the cross-sectional structure schematic diagram of the oval finned tube of metal of smooth surface;
Fig. 2 inwall is the cross-sectional structure schematic diagram that the metal of smooth surface drips the shape finned tube;
Fig. 3 inwall has the oval finned tube cross-sectional structure of the metal schematic diagram of straight rib or spiral ribs;
The metal that Fig. 4 inwall has straight rib or spiral ribs drips shape finned tube cross-sectional structure schematic diagram;
Fig. 5 inwall is the oval finned tube cross-sectional structure of the bimetallic schematic diagram of smooth surface;
Fig. 6 inwall is that the bimetallic of smooth surface drips shape finned tube cross-sectional structure schematic diagram;
Fig. 7 inwall has the oval finned tube cross-sectional structure of the bimetallic schematic diagram of straight rib or spiral ribs;
The bimetallic that Fig. 8 inwall has straight rib or spiral ribs drips shape finned tube cross-sectional structure schematic diagram;
Fig. 9 inwall is metal flat (an oval or shape) the finned tube partial structurtes cutaway view of smooth surface;
Figure 10 inwall is provided with metal flat (an oval or shape) the finned tube partial structurtes cutaway view of straight rib;
Figure 11 inwall is provided with metal flat (an oval or shape) the finned tube partial structurtes cutaway view of spiral ribs;
Figure 12 inwall is bimetallic flat (an oval or shape) the finned tube partial structurtes cutaway view of smooth surface;
Figure 13 inwall has bimetallic flat (an oval or shape) the finned tube partial structurtes cutaway view of straight rib;
Figure 14 inwall has bimetallic flat (an oval or shape) the finned tube partial structurtes cutaway view of spiral ribs;
Figure 15 has the fin partial structurtes schematic diagram of otch or notch;
Figure 16 fin has the partial structurtes schematic diagram of ripple;
With reference to Fig. 1-Figure 16.The said a kind of metal flat finned tube of the utility model is by having oval finned tube of the metal that integral fins constituted that squeezes out or metal to drip shape finned tube etc. on the outer wall of flat parent tubes such as oval or a shape.Be that two metalloid flat finned tubes oval and that a shape constitutes are that example describes the utility model below with the parent tube.On the outer wall of oval parent tube 1, squeeze out metal fin 2 and constitute the oval finned tube of metal that inwall is a smooth surface; Or squeeze out fin 4 on the outer wall of shape parent tube 3 to constitute inwalls be that the metal of smooth surface drips the shape finned tube dripping.On the inwall of the parent tube 1 of the oval finned tube of metal, be provided with straight rib a or spiral ribs b, promptly constitute the oval finned tube of metal that inwall has straight rib a or spiral ribs b; Drip at metal on the inwall of parent tube 3 of shape finned tube and be provided with straight rib c or spiral ribs d, promptly constitute the metal that inwall has straight rib or spiral ribs and drip the shape finned tube.Above-mentioned straight rib a or c, it is corrugated that the surperficial transversal of spiral ribs b or d is arc transition.Compound inwall is the another kind of metal tube 5 of smooth surface on the inwall of the parent tube 1 of the oval finned tube of metal, and promptly constituting inwall is the oval finned tube of bimetallic of smooth surface; Drip at metal the inwall of parent tube 3 of shape finned tube compound on inwall be the another kind of metal tube 6 of smooth surface, the bimetallic that promptly constitutes inwall and be smooth surface drips the shape finned tube.Inwall has the another kind of metal tube 7 of straight rib a or spiral ribs b on the inwall of the parent tube 1 of the oval finned tube of metal is compound, promptly constitutes the oval finned tube of bimetallic that inwall has straight rib or spiral ribs; Drip at metal the inwall of parent tube 3 of shape finned tube compound on inwall have the another kind of metal tube 8 of straight rib c or spiral ribs d, promptly constitute the bimetallic that inwall has straight rib or spiral ribs and drip the shape finned tube.For further improving the heat transfer efficiency of above-mentioned finned tube, also can inwardly have otch or notch e, and make the fin rightabout inclination each other of otch or notch both sides in the outer rim of fin 2 or 4.The otch of present embodiment or depth of rebate are about 1/3rd of fin 2 or 4 height, also can be provided with ripple f in the outer rim near fin 2 or 4, and corrugated ring are around flat parent tube.
The utility model compared with the prior art good effect is as follows:
1. because being outer wall at flat parent tube, fin of the present utility model squeezes out fin and flat base Guan Weiyi integral body has been eradicated in the prior art at flat parent tube cover fin or the parent tube in fin structure And therefore the defective that the thermal resistance between fin and overlay coating bring has improved heat transfer efficiency, worker The skill condition is good;
2. because the utility model is provided with straight rib or spiral ribs at inside pipe wall, increased the heat transfer in the pipe Therefore area, is the heat transfer efficiency height of smooth surface in managing in the prior art;
3. because the utility model is compounded with another kind of metal tube in pipe, therefore, has not only improved rigidity, and improved the antiseep ability, reliability is higher;
4. because the utility model is provided with notch or otch in the fin outer rim, the fin on notch or otch both sides rightabout each other tilts, thereby makes the gas side produce turbulent flow, destroys its boundary layer, has further improved the heat transfer coefficient in the outside (gas side);
5. the utility model is provided with ripple on fin, has further strengthened the heat transfer coefficient of gas side;
6. flat parent tube of the present utility model is good with oval or a shape, and windage is little, conducts heat, and can reduce the subsidiary engine loss during use;
In a word, heat transfer efficiency height of the present utility model, fabrication process condition is good, reliability is higher, can reduce the subsidiary engine loss.
Claims (5)
1. a metal flat finned tube comprises flat parent tube, fins etc. such as an ellipse or a shape, and it is characterized in that: the integral fins that squeezes out is arranged on the outer wall of flat parent tube, and the fin on promptly flat parent tube and its outer wall is an integral body;
2. a kind of metal flat finned tube according to claim 1 is characterized in that: be provided with straight rib or spiral ribs on the inwall of flat parent tube;
3. a kind of metal flat finned tube according to claim 1, it is characterized in that: on the inwall of flat parent tube, be compounded with inwall and have straight rib or have spiral ribs or be the metal tube of the another kind of metal of smooth surface, promptly constitute bimetallic flat integrally finned tubes;
4. according to claim 1 or 2 or 3 described a kind of metal flat finned tubes, it is characterized in that: the outer rim at fin inwardly is provided with otch or notch, the fin rightabout inclination each other on otch or notch both sides;
5. according to claim 1 or 2 or 3 described a kind of metal flat finned tubes, it is characterized in that: be provided with ripple at outer rim place, and corrugated ring is around flat parent tube near fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97250117 CN2323345Y (en) | 1997-11-21 | 1997-11-21 | Flat ribbed metal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97250117 CN2323345Y (en) | 1997-11-21 | 1997-11-21 | Flat ribbed metal tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2323345Y true CN2323345Y (en) | 1999-06-09 |
Family
ID=33956817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97250117 Expired - Fee Related CN2323345Y (en) | 1997-11-21 | 1997-11-21 | Flat ribbed metal tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2323345Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102792030A (en) * | 2009-11-13 | 2012-11-21 | 欧陆汽车有限责任公司 | Turbocharger housing |
| CN103868393A (en) * | 2014-03-03 | 2014-06-18 | 北京中能诺泰节能环保技术有限责任公司 | Efficient heat exchange pipe |
| CN105387737A (en) * | 2015-12-21 | 2016-03-09 | 天津焜日科技开发有限公司 | Heat exchange tube of heat exchange structure |
-
1997
- 1997-11-21 CN CN 97250117 patent/CN2323345Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102792030A (en) * | 2009-11-13 | 2012-11-21 | 欧陆汽车有限责任公司 | Turbocharger housing |
| CN102792030B (en) * | 2009-11-13 | 2015-09-16 | 大陆汽车有限公司 | Turbocharger housing |
| CN103868393A (en) * | 2014-03-03 | 2014-06-18 | 北京中能诺泰节能环保技术有限责任公司 | Efficient heat exchange pipe |
| CN105387737A (en) * | 2015-12-21 | 2016-03-09 | 天津焜日科技开发有限公司 | Heat exchange tube of heat exchange structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |