CN202770294U - Novel air cooling single row tube bundle - Google Patents
Novel air cooling single row tube bundle Download PDFInfo
- Publication number
- CN202770294U CN202770294U CN 201220483298 CN201220483298U CN202770294U CN 202770294 U CN202770294 U CN 202770294U CN 201220483298 CN201220483298 CN 201220483298 CN 201220483298 U CN201220483298 U CN 201220483298U CN 202770294 U CN202770294 U CN 202770294U
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- fin
- parent tube
- single row
- tube
- air cooling
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Abstract
The utility model discloses a novel air cooling single row tube bundle which comprises a parent tube and fins. The fins are arranged on the upper surface and the lower surface of the parent tube, the parent tube is a rectangular flat tube with a chamfer, the fins and the parent tube are welded together in whole braze welding mode, the fins are in snake-shape, flow disturbing holes are arranged in the fins. The parent tube is the rectangular flat tube with the chamfer, length of the parent tube is shortened, materials are saved, the cleaning is easier to operate, heat transferring intensity is ensured, the rectangular flat tube with the chamfer reduces stress concentration, and not only is rigidity is improved greatly but also frost craking phenomenon occurring after the deformation of the parent tube in winter can be prevented. The flow disturbing holes are arranged on the traditional fins in snake-shape, the flow disturbing holes are used to break the laminar state when the single row tube bundles transfer heat, thus cool air among the fins can transfer heat under turbulent conditions, an original boundary layer is broken, continuous transferring of the cool air can be enhanced, the side convection heat transferring intensity can be increased greatly, the heat transferring intensity of a radiator can be improved at the same time, and the heat transferring area of the radiator under the same thermal load condition can be saved.
Description
Technical field
The utility model relates to a kind of novel air cooling single row of tubes bundle, belongs to the air cooling equipments such as thermal power plant, chemical industry and empty branch trade.
Background technology
Directly the heat exchanger of air system is the main part of system, is the media such as higher temperature steam in the single row of tubes pipe, and its heat passes in the air of the outer lower temperature of single row of tubes pipe by the fin of soldering at the single row of tubes parent tube.Its workmanship, runnability and service life are the subject matter in its development process.Because about half of heat exchange equipment duty gas system investment, so the length in the quality of the price of air heat-exchanging device, heat-transfer capability and resistance performance and service life, play a part very important for the safety and economic operation of air unit.
Existing heat exchanger parent tube is elliptical tube, and the air side flow channel is longer, and resistance is larger, and the parent tube cross section is larger, causes the cost of raw material high; Passage Air many places are easy to dust stratification in laminar condition, increase the wash number of system; The dust that falls in the fin more easily has influence on heat transfer intensity.
Can occur laminar flow and turbulent phenomenon during the single row of tubes heat exchange, heat exchange rate is low during laminar flow, when turbulent flow heat exchange rate high, how relying on turbulent flow to reach higher heat transfer effect is all the time research topic.
The utility model content
The purpose of this utility model is to provide a kind of novel air cooling single row of tubes bundle, its parent tube is the rectangle flat tube with chamfering, shortened parent tube length, having saved material is convenient to clean more, guarantee heat transfer intensity, reduce stress with the rectangle flat tube of chamfering and concentrate, not only increase substantially rigidity, and prevent that winter from the bursting by freezing phenomenon occurring after the parent tube distortion; Offer the flow-disturbing hole at traditional snakelike flat fin, laminar condition when utilizing the flow-disturbing hole to destroy single tube bank heat exchange, cold air is remained on carry out heat exchange under the turbulent condition, destroy original boundary layer, strengthen the continuous exchange of cold air, fin side convection heat transfer intensity is increased considerably, improve simultaneously the radiator heat exchange efficiency, under identical thermic load, save the heat exchange area of radiator, reduced finned length, reduced the tube bank cost of manufacture.
The technical solution of the utility model: a kind of novel air cooling single row of tubes bundle, comprise parent tube and fin, fin is located at up and down two surfaces of parent tube, parent tube is the rectangle flat tube with chamfering, weld together by integral braze-welded between parent tube and fin, fin is snakelike, and fin is provided with the flow-disturbing hole.Because the parent tube in will restraining is made into the rectangle flat tube with chamfering, has shortened parent tube length, has saved material and more be convenient to clean, guarantee heat transfer intensity, rectangular tube has reduced stress to be concentrated, and not only increases substantially rigidity, and prevents that winter from the bursting by freezing phenomenon occurring after the parent tube distortion; Owing to offering the flow-disturbing hole at wave-fin, make the fin side keep heat convection, the intensity heat exchange increases.
Aforesaid this novel air cooling single row of tubes is intrafascicular, and the quantity in the flow-disturbing hole on the described fin is even number.Be provided with even number flow-disturbing hole, make and be completed into convection current in the fin, accelerate the continuous exchange of cold air.
Aforesaid this novel air cooling single row of tubes is intrafascicular, described flow-disturbing hole be shaped as rectangle, ellipse or triangle.
Aforesaid this novel air cooling single row of tubes is intrafascicular, also is provided with projection and groove on the described fin, and projection and groove are interspersed on fin.
Aforesaid this novel air cooling single row of tubes is intrafascicular, and described flow-disturbing hole is provided with the spoiler identical with the flow-disturbing hole shape.
Aforesaid this novel air cooling single row of tubes is intrafascicular, and the angle α of described spoiler and fin is 10 °~30 °.
Aforesaid this novel air cooling single row of tubes is intrafascicular, and basepipe materials is Steel-aluminium composite board, and the parent tube width is 180mm~219mm, and the parent tube height is 13mm~19mm, and the parent tube wall thickness is 1.2mm~1.52mm.
Aforesaid this novel air cooling single row of tubes is intrafascicular, and the base material of described Steel-aluminium composite board is that low carbon steel plate and 4343 aluminium sheets are composited, and wherein the low carbon steel plate wall thickness is 1.2mm~1.47mm, and 4343 aluminium sheet wall thickness are 0.025mm~0.070mm.
Aforesaid this novel air cooling single row of tubes is intrafascicular, and fin thickness is 0.2mm~0.3mm, and fin height is 13mm~19mm, and fin material is common aluminium 3003H24.Because fin uses common aluminium 3003H24 as material, produce corrosion so reduce, prolong its service life, not only guarantee pyroconductivity, save simultaneously the fin cost of manufacture.
Aforesaid this novel air cooling single row of tubes is intrafascicular, is provided with passage between arbitrary neighborhood two fins, and passage is uniform channel, and channel width is 2.2mm~3.0mm.。
Aforesaid this novel air cooling single row of tubes is intrafascicular, and fin is plain fin.
Compared with prior art, the novel air cooling single row of tubes of the utility model bundle is comprised of parent tube and fin, the shape of cross section of parent tube is the rectangle flat tube with chamfering, its two ends are circular-arc, after long-time the use, more be convenient to falling into the cleaning of dust, avoid dust to intercept and reduce heat exchange efficiency, guarantee heat transfer intensity; Fin uses common aluminium 3003H24 as material, makes fin identical with the parent tube coating material, reduces to produce corrosion, prolongs its service life, not only guarantees pyroconductivity, saves simultaneously the fin cost of manufacture.
Traditional oval pipe, winter, the parent tube rear distortion of enduring cold was easily leaked, can produce huge maintenance cost in case occur to leak, the utility model adopts the rectangle flat tube chamfering with chamfering to reduce stress and concentrates, improve rigidity, the preventing freeze in winter ability strengthens, and prevents after the distortion that the bursting by freezing phenomenon from occuring, and reduces maintenance cost.
Fin is along the shape that vertically is serpentine bend of parent tube, and offer the flow-disturbing hole at fin, the laminar condition in boundary layer in the broken annular space gas wing passage under the effect in flow-disturbing hole, cold air between fin is remained under the state of turbulent flow, strengthen the continuous exchange of cold air, stablize heat convection, fin side heat transfer intensity is increased considerably, improve simultaneously the radiator heat exchange efficiency, improve heat exchange efficiency nearly 6~10%, offer the material that fin has been saved in the flow-disturbing hole simultaneously.In the situation of identical heat dissipation capacity, air pressure measurement of the present utility model is fallen and is restrained side pressure and fall all and will reduce, thereby reduces power of fan, saves the energy.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model top view;
Fig. 3 is the structural representation with the fin in rectangle flow-disturbing hole;
Fig. 4 is the structural representation with the fin in oval flow-disturbing hole;
Fig. 5 is the front view with the fin of rectangle spoiler;
Fig. 6 is the front view with the fin of triangle spoiler;
Fig. 7 is single fin side view.
Being labeled as in the accompanying drawing: 1-parent tube, 2-fin, 3-spoiler, 4-passage, 5-flow-disturbing hole, 6-projection, 7-groove.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described, but not as the foundation to the utility model restriction.
The quantity in the flow-disturbing hole 5 on the described fin 2 is even number, and flow-disturbing hole 5 is uniformly distributed on the fin 2.
Described flow-disturbing hole 5 be shaped as rectangle.
Also be provided with projection 6 and groove 7 on the described fin 2, projection 6 and groove 7 are interspersed on fin 2.
As shown in Figure 5, described flow-disturbing hole 5 is provided with the spoiler 3 identical with the flow-disturbing hole shape.
As shown in Figure 7, described spoiler 3 is 10 ° with the angle α of fin 2.
The base material of described Steel-aluminium composite board is that low carbon steel plate and 4343 aluminium sheets are composited, and wherein the low carbon steel plate wall thickness is 1.2mm, and 4343 aluminium sheet wall thickness are 0.025mm.
Fin 2 materials are common aluminium 3003H24, and material thickness is 0.2mm, and fin 2 highly is 13mm.
2 of arbitrary neighborhood two fins are provided with passage 4, and passage 4 is uniform channel, and passage 4 width are 2.2mm.
The quantity in the flow-disturbing hole 5 on the described fin 2 is even number, and flow-disturbing hole 5 is uniformly distributed on the fin 2.
As shown in Figure 6, described flow-disturbing hole 5 is shaped as triangle.
Also be provided with projection 6 and groove 7 on the described fin 2, projection 6 and groove 7 are interspersed on fin 2.
Described flow-disturbing hole 5 is provided with the spoiler 3 identical with the flow-disturbing hole shape.
As shown in Figure 7, described spoiler 3 is 20 ° with the angle α of fin 2.
The base material of described Steel-aluminium composite board is that low carbon steel plate and 4343 aluminium sheets are composited, and wherein the low carbon steel plate wall thickness is 1.3mm, and 4343 aluminium sheet wall thickness are 0.04mm.
Every 2 of 2 liang of fins of adjacent two fins are provided with passage 4, and passage 4 is uniform channel, and passage 4 width are 2.4mm.
The quantity in the flow-disturbing hole 5 on the described fin 2 is even number.
Described flow-disturbing hole 5 be shaped as rectangle.
Also be provided with projection 6 and groove 7 on the described fin 2, projection 6 and groove 7 are interspersed on fin 2.
As shown in Figure 5, described flow-disturbing hole 5 is provided with the spoiler 3 identical with the flow-disturbing hole shape.
As shown in Figure 7, described spoiler 3 is 30 ° with the angle α of fin 2.
The base material of described Steel-aluminium composite board is that low carbon steel plate and 4343 aluminium sheets are composited, and wherein the low carbon steel plate wall thickness is 1.4mm, and 4343 aluminium sheet wall thickness are 0.06mm.
Every 2 of adjacent two fins are provided with passage 4, and passage 4 is uniform channel, and passage 4 width are 2.6mm.
The quantity in the flow-disturbing hole 5 on the described fin 2 is even number.
As shown in Figure 4, described flow-disturbing hole 5 is shaped as ellipse.
Also be provided with projection 6 and groove 7 on the described fin 2, projection 6 and groove 7 are interspersed on fin 2.
The base material of described Steel-aluminium composite board is that low carbon steel plate and 4343 aluminium sheets are composited, and wherein the low carbon steel plate wall thickness is 1.4mm, and 4343 aluminium sheet wall thickness are 0.070mm.
Every 2 of adjacent two fins are provided with passage 4, and passage 4 is uniform channel, and passage 4 width are 3.0mm.
The quantity in the flow-disturbing hole 5 on the described fin 2 is even number.
As shown in Figure 3, described flow-disturbing hole 5 is shaped as rectangle.
The base material of Steel-aluminium composite board is that low carbon steel plate and 4343 aluminium sheets are composited, and wherein the low carbon steel plate wall thickness is 1.47mm, and 4343 aluminium sheet wall thickness are 0.050mm.
Be provided with passage 4 between every adjacent two fins 2, passage 4 is uniform channel, and passage 4 width are 3.0mm
Operation principle of the present utility model: with snakelike flow-disturbing hole 5 fins 2 of offering of special roll extrusion fin forming machine processing novel; The novel parent tube 1 usefulness steel aluminium of single tube bank is laminated with plate and is welded as pipe, then is compressed to rectangle flat tube with chamfering with particular manufacturing craft.About in the of 1 two surfaces at parent tube in snakelike fin 2 solderings of offering flow-disturbing hole 5.
Claims (10)
1. novel air cooling single row of tubes bundle, comprise parent tube (1) and fin (2), fin (2) is located at up and down two surfaces of parent tube (1), it is characterized in that: parent tube (1) is the rectangle flat tube with chamfering, weld together by integral braze-welded between parent tube (1) and fin (2), fin (2) is snakelike, and fin (2) is provided with flow-disturbing hole (5).
2. a kind of novel air cooling single row of tubes bundle according to claim 1, it is characterized in that: the quantity in the flow-disturbing hole (5) on the described fin (2) is even number.
3. a kind of novel air cooling single row of tubes bundle according to claim 1 is characterized in that: described flow-disturbing hole (5) be shaped as rectangle, ellipse or triangle.
4. a kind of novel air cooling single row of tubes bundle according to claim 1 is characterized in that: also be provided with projection (6) and groove (7) on the described fin (2), projection (6) and groove (7) are interspersed on fin (2).
5. according to claim 1 or 3 described a kind of novel air cooling single row of tubes bundles, it is characterized in that: described flow-disturbing hole (5) is provided with the spoiler (3) identical with the flow-disturbing hole shape.
6. a kind of novel air cooling single row of tubes bundle according to claim 5 is characterized in that: described spoiler (3) is 10 °~30 ° with the angle α of fin (2).
7. a kind of novel air cooling single row of tubes bundle according to claim 1, it is characterized in that: parent tube (1) material is Steel-aluminium composite board, parent tube (1) width is 180mm~190mm, and parent tube (1) highly is 13mm~19mm, and parent tube (1) wall thickness is 1.2mm~1.52mm.
8. a kind of novel air cooling single row of tubes bundle according to claim 7, it is characterized in that: the base material of described Steel-aluminium composite board is that low carbon steel plate and 4343 aluminium sheets are composited, wherein the low carbon steel plate wall thickness is 1.2mm~1.47mm, and 4343 aluminium sheet wall thickness are 0.025mm~0.070mm.
9. a kind of novel air cooling single row of tubes bundle according to claim 1, it is characterized in that: fin (2) thickness is 0.2mm~0.3mm, and fin (2) highly is 13mm~19mm, and the material of fin (2) is common aluminium 3003H24.
10. a kind of novel air cooling single row of tubes bundle according to claim 1, it is characterized in that: be provided with passage (4) between arbitrary neighborhood two fins (2), passage (4) is uniform channel, and its width is 2.2mm~3.0mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220483298 CN202770294U (en) | 2012-09-20 | 2012-09-20 | Novel air cooling single row tube bundle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220483298 CN202770294U (en) | 2012-09-20 | 2012-09-20 | Novel air cooling single row tube bundle |
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CN202770294U true CN202770294U (en) | 2013-03-06 |
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CN 201220483298 Expired - Fee Related CN202770294U (en) | 2012-09-20 | 2012-09-20 | Novel air cooling single row tube bundle |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102889812A (en) * | 2012-09-20 | 2013-01-23 | 华电重工股份有限公司 | Novel single-row tube bank for cooling air |
RU184138U1 (en) * | 2018-04-24 | 2018-10-16 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | CASED TUBE HEAT EXCHANGE UNIT FOR DISPOSAL OF HEAT OF TECHNOLOGICAL GASES |
CN113970253A (en) * | 2020-07-22 | 2022-01-25 | 成都聚实节能科技有限公司 | Large-section air-cooling condensing single-row pipe |
-
2012
- 2012-09-20 CN CN 201220483298 patent/CN202770294U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102889812A (en) * | 2012-09-20 | 2013-01-23 | 华电重工股份有限公司 | Novel single-row tube bank for cooling air |
RU184138U1 (en) * | 2018-04-24 | 2018-10-16 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | CASED TUBE HEAT EXCHANGE UNIT FOR DISPOSAL OF HEAT OF TECHNOLOGICAL GASES |
CN113970253A (en) * | 2020-07-22 | 2022-01-25 | 成都聚实节能科技有限公司 | Large-section air-cooling condensing single-row pipe |
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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: 20130306 Termination date: 20210920 |
|
CF01 | Termination of patent right due to non-payment of annual fee |