CN100582500C - Corrugated-finned hydraulic oil cooler with ladder-shaped structure - Google Patents
Corrugated-finned hydraulic oil cooler with ladder-shaped structure Download PDFInfo
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- CN100582500C CN100582500C CN200710042887A CN200710042887A CN100582500C CN 100582500 C CN100582500 C CN 100582500C CN 200710042887 A CN200710042887 A CN 200710042887A CN 200710042887 A CN200710042887 A CN 200710042887A CN 100582500 C CN100582500 C CN 100582500C
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- fin
- corrugated
- trapezium structure
- oil cooler
- hydraulic oil
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Abstract
It is a kind of refrigeration which has a trapezoidal frame corrugation fin oil cooler. It contains oil-in chamber, corrugation fin, oil-in pipe, short seal, long seal, intermediate bay, sawtooth turbulence, basal bay, oil-in pipe and oil-out chamber. Among them, the corrugation fin has trapezoidal frame, which can form a rectangle with its tangent plane in vertical direction in the air. In the air split, fin corrugation is a trapezoidal frame periodically. The ratio between the lower bottom of echelon form and the upper bottom is 4.5-5.5. The height of the echelon form is 1.5mm. This invention improves the power of the heater exchanger and decreases weight and size under the less resistance pressure.
Description
Technical field
What the present invention relates to is a kind of hydraulic oil cooler of refrigeration engineering technical field, particularly a kind of corrugated-finned hydraulic oil cooler with trapezium structure.
Background technique
The automobile-used heat exchanger that uses in cooling system of vehicle mainly contains: radiator of water tank, oil cooler.In these heat exchangers, all adopt the cooling of ambient air realization basically to the high-temp liquid medium.Wherein liquid medium flows in Tube Sheet of Heat Exchanger, and cooling air externally flows, and in these diabatic processes, the control thermal resistance of whole heat exchanger all is distributed in air side.Therefore improve the air side surface heat-transfer coefficient and become the key factor that improves each heat exchanger heat exchange power, the main plain fin of automobile-used heat exchanger air side fins type, corrugated fin, saw tooth fin and louvered fin etc. commonly used at present.Louvered fin and saw tooth fin heat exchanger also cause the rapid increase of its air flow resistance in augmentation of heat transfer.For the heat exchanger of engineering machinery and farm machinery,, its special arrangement and bad working environment etc. obtain huge restriction because of causing louvered fin commonly used on automobile and saw tooth fin to be used.What is more important because engineering machinery and farm machinery working environment very severe, adopts louvered fin and serrated fin, can form dirt and dirty blocking up on the fin heat exchanger outside because of dust and particulate matter, and then reduce the heat radiation power of heat exchanger greatly; Resistance of air flows and increases simultaneously, and fan power improves, and increases the oil consumption and the noise of motor.
And plain fin heat exchanger commonly used in the market can well solve the dirty problem such as stifled of air flow resistance and dirt.But air flows on plain fin, can not realize air is produced flow-disturbing and destroys the purpose that the boundary layer increases because of it, causes the design size of its heat exchanger very big, and raw material increase.What is more important, along with the strictness of vehicular discharge rules, and saving lowers consumption and the requirement of riding amenity improves day by day, makes that the layout of engine compartment is compact more, and each heat exchanger also will be to lightweight and miniaturization development.These have all proposed serious challenge to traditional plain fin heat exchanger.
Find that through literature search the patent No. is a kind of oil cooler of 200420091850.9 to prior art.This patent is a kind of air-cooled oil cooler of transformer that is used for, and adopts strip of paper used for sealing formula structural type.Air side fins is the plain fin of wavestrip shape, and the inboard forms oily side canal for serrated fin.Because this technological scheme is a plain fin at the fin that air side adopts, though can effectively reduce the air side resistance, the effect of its augmentation of heat transfer is undesirable.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of corrugated fin oil cooler with trapezium structure is provided, make its air side adopt a kind of rippled fin of trapezium structure, can increase under the little condition at resistance of air, effectively improve its temperature conductivity, and can be good at solving outer finned surface dirt of heat exchanger and dirty stifled problem.
The present invention is achieved through the following technical solutions, the present invention includes: the import oil-in chamber, corrugated fin, the outlet oil pipe, short strip of paper used for sealing, long strip of paper used for sealing, intermediate clapboard, the sawtooth turbulence fin, the bottom surface dividing plate, the import oil pipe, the outlet oil-in chamber, annexation is: the bottom surface dividing plate is arranged on bottommost, corrugated fin is arranged on the dividing plate of bottom surface, at dividing plate two ends, bottom surface short strip of paper used for sealing is set, to form the gas side canal, intermediate clapboard is arranged on the corrugated fin, long strip of paper used for sealing is arranged on the intermediate clapboard and is parallel with intermediate clapboard, sawtooth pattern turbulent flow fin is set between long strip of paper used for sealing, to form oily side canal, gas side canal and oily side canal are formed the fuse of oil cooler, fuse links to each other with the import and export chamber, offers circular hole on import oil-in chamber and outlet oil-in chamber, and is provided with import oil pipe and outlet oil pipe on circular hole.
Described corrugated fin has the trapezium structure form, its with the air flows Vertical direction on tangent plane be rectangle, the tangent plane on the air flows length direction is periodically variable trapezium structure form.
Described corrugated fin, the trapezoidal bottom surface and the ratio of upper bottom surface are 4.5～5.5 in its trapezium structure, trapezoidal height is 1.5mm.
Described corrugated fin, an one complete wavelength is 10～12mm, thickness is 0.15～0.2mm.
Described corrugated fin, it highly is 8～10mm.
Described short strip of paper used for sealing, its height is identical with the corrugated fin height.
Described corrugated fin, its length are 60～120mm.
Described corrugated fin can pass through the extrusion molding dies once-through.
Described sawtooth pattern turbulent flow fin comprises several saw tooth fins, and the spacing of saw tooth fin is 2～3mm.
Described sawtooth pattern turbulent flow fin, its pitch is 3mm, pitch is the discontinuity length of each saw tooth fin at flow direction.
Described sawtooth pattern turbulent flow fin, it highly is 2mm.
Described long strip of paper used for sealing, its height is identical with the height of sawtooth pattern turbulent flow fin.
Described corrugated fin and bottom surface dividing plate, intermediate clapboard, long strip of paper used for sealing, short strip of paper used for sealing and sawtooth pattern turbulent flow fin are formed the fuse of oil cooler by the Vacuum Soldering Technology weldering.
The fuse of described oil cooler, its thickness can freely be adjusted, because the length of corrugated fin, intermediate clapboard, bottom surface dividing plate and short strip of paper used for sealing can freely be adjusted.
Described import oil pipe, its height are 50～80mm, and its diameter is 30～50mm.
Described outlet oil pipe, its height are 50～80mm, and its diameter is 30～50mm.
Described import oil-in chamber and outlet oil-in chamber connect into product through the fuse of aluminium extrusion moulding (or aluminum casting) and oil cooler through argon arc welding.
Described gas side canal and oily side canal are placed successively, according to different design needs, can freely adjust the number of the gentle side canal of oily side canal, but the number of gas side canal should be littler by 1 than oily side canal number.
Form in the oil cooler of strip of paper used for sealing structural type at above-mentioned each parts, after hydraulic oil with higher temperature enters the import oil-in chamber from the import oil pipe, be assigned in the oily side canal, in oily side canal, the higher hydraulic oil of temperature passes through sawtooth pattern turbulent flow fin, intermediate clapboard cooling air transmission laterally heat, in the gas side canal, cooling air with certain flowing velocity surrounds outside corrugated fin and oily side canal, cooled hydraulic oil enters the outlet oil-in chamber, flow out through the outlet oil pipe again, and then the formation circulation loop, realize the continuous cooling of hydraulic oil.In the gas side canal, corrugated fin of the present invention strengthens the disturbance to cooling air, can realize good augmentation of heat transfer.
The present invention has adopted the corrugated fin with trapezium structure form, with respect to traditional plain fin oil cooler, adopt the present invention, its temperature conductivity of same size size product improves about 40%～45%, and resistance of air only increases about about 30%～35%, also be to realize identical heat dissipating capacity, the present invention can significantly reduce the consumption of material and the reduction of cost.The fuse thickness of product and freely adjusting simultaneously, the expense of saving mold developing is easy to mass production.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is corrugated fin of the present invention and oily side canal partial structurtes front view;
Fig. 3 is the sectional view of corrugated fin of the present invention;
Fig. 4 is the temperature conductivity comparison diagram of trapezoidal wave corrugated fin of the present invention and plain film:
Fig. 5 is the resistance performance comparison diagram of trapezoidal wave corrugated fin of the present invention and plain film.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment has provided detailed mode of execution and process being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: import oil-in chamber 1, corrugated fin 2, outlet oil pipe 3, short strip of paper used for sealing 4, long strip of paper used for sealing 5, intermediate clapboard 6, sawtooth turbulence fin 7, bottom surface dividing plate 8, import oil pipe 9, outlet oil-in chamber 10, annexation is: bottom surface dividing plate 7 is arranged on bottommost, corrugated fin 2 is arranged on the bottom surface dividing plate 7, at bottom surface dividing plate 7 two ends short strip of paper used for sealing 4 is set, to form the gas side canal, intermediate clapboard 6 is arranged on the corrugated fin 2, long strip of paper used for sealing 5 is arranged on the intermediate clapboard 6 and is parallel with intermediate clapboard 6, sawtooth pattern turbulent flow fin 7 is set between long strip of paper used for sealing 5, to form oily side canal, gas side canal and oily side canal are formed the fuse of oil cooler, fuse links to each other with 10 with import and export oil-in chamber 1, offers circular hole on import oil-in chamber 1 and outlet oil-in chamber 10, and is provided with import oil pipe 9 and outlet oil pipe 3 on circular hole.
As shown in Figure 2, described corrugated fin 2, its with the air flows Vertical direction on tangent plane be rectangle, the tangent plane on the air flows length direction is periodically variable trapezium structure form.
As shown in Figure 3, described corrugated fin 2, trapezoidal bottom surface L1 and the ratio of upper bottom surface L2 in its trapezium structure, L1/L2=4.5～5.5, trapezoidal height is H=1.5mm.
Described corrugated fin 2, an one complete wavelength is 10～12mm, thickness is T=0.15～0.2mm.
Described corrugated fin 2, it highly is 8～10mm.
Described short strip of paper used for sealing 4, its height is highly identical with corrugated fin 2.
Described corrugated fin 2, its length are 60～120mm.
Described corrugated fin 2 can pass through the extrusion molding dies once-through.
Described sawtooth pattern turbulent flow fin 7 comprises several saw tooth fins, and the spacing of saw tooth fin is 2～3mm.
Described sawtooth pattern turbulent flow fin 7, its pitch is 3mm, pitch is the discontinuity length of each saw tooth fin at flow direction.
Described sawtooth pattern turbulent flow fin 7, it highly is 2mm.
Described long strip of paper used for sealing 5, its height is identical with the height of sawtooth pattern turbulent flow fin 7.
Described corrugated fin 2 welds the fuse of forming oil cooler with bottom surface dividing plate 8, intermediate clapboard 6, long strip of paper used for sealing 5, short strip of paper used for sealing 4 and sawtooth pattern turbulent flow fin 7 by Vacuum Soldering Technology.
The fuse of described oil cooler, its thickness can freely be adjusted, because the length of corrugated fin 2, intermediate clapboard 6, bottom surface dividing plate 8 and short strip of paper used for sealing 5 can freely be adjusted.
Described import oil pipe, its height are 50～80mm, and its diameter is 30～50mm.
Described outlet oil pipe, its height are 50～80mm, and its diameter is 30～50mm.
Described import oil-in chamber 1 and outlet oil-in chamber 10 connect into product for the fuse of aluminium extrusion moulding (or aluminum casting) and oil cooler through argon arc welding.
Described gas side canal and oily side canal are placed successively, according to different design needs, can freely adjust the number of the gentle side canal of oily side canal, but the number of gas side canal should be littler by 1 than oily side canal number.
The material of the various parts of present embodiment all adopts aluminium material.
Form in the oil cooler of strip of paper used for sealing structural type at above-mentioned each parts, after hydraulic oil with higher temperature enters import oil-in chamber 1 from import oil pipe 9, be assigned in the oily side canal, in oily side canal, the higher hydraulic oil of temperature passes through sawtooth pattern turbulent flow fin 7, intermediate clapboard 6 cooling air laterally transmits heat, in the gas side canal, cooling air with certain flowing velocity surrounds outside corrugated fin 2 and oily side canal, cooled hydraulic oil enters outlet oil-in chamber 10, flow out through outlet oil pipe 3 again, and then the formation circulation loop, realize the continuous cooling of hydraulic oil.In the gas side canal, corrugated fin 2 of the present invention strengthens the disturbance to cooling air, can realize good augmentation of heat transfer.
Fig. 4 and Fig. 5 are by after the numerical calculation, the heat transfer of plain fin and corrugated fin of the present invention and resistance performance comparison diagram.As seen from Figure 4, identical Re counts under the working condition, and the temperature conductivity j factor of corrugated fin of the present invention improves about 60% than the j factor of plain fin.As seen from Figure 5, identical Re counts under the working condition, only improves about about 35% with respect to the resistance performance f factor of plain fin corrugated fin of the present invention.Thereby the present invention increases the purpose that realizes augmentation of heat transfer under the little condition at the air side resistance, has alleviated the weight of heat exchanger, has saved cost.
Claims (10)
1. corrugated-finned hydraulic oil cooler with trapezium structure, comprise: the import oil-in chamber, corrugated fin, the outlet oil pipe, short strip of paper used for sealing, long strip of paper used for sealing, intermediate clapboard, the sawtooth turbulence fin, the bottom surface dividing plate, the import oil pipe, the outlet oil-in chamber, the bottom surface dividing plate is arranged on bottommost, corrugated fin is arranged on the dividing plate of bottom surface, at dividing plate two ends, bottom surface short strip of paper used for sealing is set, to form the gas side canal, intermediate clapboard is arranged on the corrugated fin, long strip of paper used for sealing is arranged on the intermediate clapboard and is parallel with intermediate clapboard, sawtooth pattern turbulent flow fin is set between long strip of paper used for sealing, to form oily side canal, air side passage and oily side canal are formed the fuse of oil cooler, fuse links to each other with the outlet oil-in chamber with the import oil-in chamber, on the import and export oil-in chamber, offer circular hole, and on circular hole, be provided with the import oil pipe and export oil pipe, it is characterized in that, described corrugated fin, has the trapezium structure form, its with air flows Vertical direction upper edge be rectangle, on the air flows length direction, the fin tangent plane is periodically variable trapezium structure form.
2. the corrugated-finned hydraulic oil cooler with trapezium structure according to claim 1 is characterized in that, described corrugated fin, and the trapezoidal bottom surface and the ratio of upper bottom surface are 4.5～5.5 in its trapezium structure, trapezoidal height is 1.5mm.
3. the corrugated-finned hydraulic oil cooler with trapezium structure according to claim 1 is characterized in that, described corrugated fin, and an one complete wavelength is 10～12mm, thickness is 0.15～0.2mm.
4. the corrugated-finned hydraulic oil cooler with trapezium structure according to claim 1 is characterized in that, described corrugated fin, and it highly is 8～10mm, the height of short strip of paper used for sealing is identical with the corrugated fin height.
5. the corrugated-finned hydraulic oil cooler with trapezium structure according to claim 1 is characterized in that, described corrugated fin, and its length is 60～120mm.
6. the corrugated-finned hydraulic oil cooler with trapezium structure according to claim 1 is characterized in that, described sawtooth pattern turbulent flow fin comprises several saw tooth fins, and the spacing of saw tooth fin is 2～3mm.
7. the corrugated-finned hydraulic oil cooler with trapezium structure according to claim 1 is characterized in that, described sawtooth pattern turbulent flow fin, and its pitch is 3mm, pitch is the discontinuity length of each saw tooth fin at flow direction.
8. the corrugated-finned hydraulic oil cooler with trapezium structure according to claim 1 is characterized in that, described sawtooth pattern turbulent flow fin, and it highly is 2mm, the height of described sawtooth pattern turbulent flow fin is identical with the height of long strip of paper used for sealing.
9. the corrugated-finned hydraulic oil cooler with trapezium structure according to claim 1 is characterized in that, described import oil pipe, its height are 50～80mm, and its diameter is 30～50mm; Described outlet oil pipe, its height are 50～80mm, and its diameter is 30～50mm.
10. the corrugated-finned hydraulic oil cooler with trapezium structure according to claim 1 is characterized in that, the number of described gas side canal is littler by 1 than oily side canal number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710042887A CN100582500C (en) | 2007-06-28 | 2007-06-28 | Corrugated-finned hydraulic oil cooler with ladder-shaped structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710042887A CN100582500C (en) | 2007-06-28 | 2007-06-28 | Corrugated-finned hydraulic oil cooler with ladder-shaped structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101074692A CN101074692A (en) | 2007-11-21 |
| CN100582500C true CN100582500C (en) | 2010-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710042887A Expired - Fee Related CN100582500C (en) | 2007-06-28 | 2007-06-28 | Corrugated-finned hydraulic oil cooler with ladder-shaped structure |
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| Country | Link |
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| CN (1) | CN100582500C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534910A (en) * | 2015-01-04 | 2015-04-22 | 烟台杰瑞富耐克换热设备有限公司 | Aluminum heat radiation device |
| CN104948260A (en) * | 2015-07-29 | 2015-09-30 | 聊城市德通交通器材制造有限公司 | Microchannel engine oil cooler |
| CN106482572A (en) * | 2016-10-14 | 2017-03-08 | 无锡市冠云换热器有限公司 | It is applied to the oil cooler of engineering machinery |
| CN112428768B (en) * | 2020-05-29 | 2024-06-11 | 杭州三花研究院有限公司 | Thermal management system |
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2007
- 2007-06-28 CN CN200710042887A patent/CN100582500C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101074692A (en) | 2007-11-21 |
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Granted publication date: 20100120 Termination date: 20130628 |