CN104019690A - Oil-immersed transformer cooling fin - Google Patents
Oil-immersed transformer cooling fin Download PDFInfo
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- CN104019690A CN104019690A CN201310063207.9A CN201310063207A CN104019690A CN 104019690 A CN104019690 A CN 104019690A CN 201310063207 A CN201310063207 A CN 201310063207A CN 104019690 A CN104019690 A CN 104019690A
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- filled transformer
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- cooling fin
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Abstract
The invention discloses an oil-immersed transformer cooling fin. A series of three-dimensional protruding turbulence structures are arranged on the air side of the oil-immersed transformer cooling fin through machining modes such as stamping and embossing, the turbulence structures can be in shapes of a pyramid, a semi-conical table body, a semi-bullhead protrusion and the like, a longitudinal vortex generator is formed, the longitudinal vortex generated by the three-dimensional protruding turbulence structures destroy the flowing boundary layer generated when air flows through the cooling fin, and therefore heat convection between the cooling fin and air is enhanced. The oil-immersed transformer cooling fin is simple in structure, low in cost, and capable of improving the heat convection efficiency to a certain degree.
Description
Technical field
The present invention relates to a kind of mechanical device.Be specifically related to a kind of fin that improves oil-filled transformer thermal diffusivity.
Background technology
Oil-filled transformer has the features such as loss is low, capacity is large, price is low, the power transformer major part of current electric online operation is oil-filled transformer, oil-filled transformer is in running, power consumption in iron core and winding changes heat into, guarantees that the normal operating temperature of transformer is significant for service life and the stable operation of transformer.Because air side heat convection thermal resistance is the principal element in the whole heat radiation process of impact, therefore improve oil-filled transformer fin air side heat convection efficiency, can effectively improve the integral heat sink ability of oil-filled transformer.
Long direction eddy generator is a kind of effective passive type intensified heat transfer method, its disturbing flow device can be divided into two classes by profile: aerofoil profile eddy generator and flow-disturbing column type eddy generator, but aerofoil profile long direction eddy generator mostly logical punching mode obtains fin, oil-filled transformer fin is inner can not carry out punching design because being full of transformer oil; If adopt the techniques such as electric welding to add aerofoil profile or flow-disturbing column type long direction eddy generator at oil-filled transformer fin, its technique is comparatively loaded down with trivial details, is unfavorable for the application in engineering.
Summary of the invention
The object of this invention is to provide a kind of oil-filled transformer fin that is easy to machine-shaping and can improves oil-filled transformer fin air side heat convection efficiency.
In order to achieve the above object, the present invention has following technical scheme:
A kind of oil-filled transformer fin of the present invention is provided with several three-dimensional turbulence structures that protrudes on oil-filled transformer fin, and described three-dimensional protrusion turbulence structure and oil-filled transformer fin are structure as a whole.
Wherein, described several three-dimensional turbulence structures that protrude are for comprising triangle cone or half-conical stage body or half warhead shape projection.
Wherein, described several three-dimensional turbulence structures that protrude are set to some rows, and odd number row is protruded turbulence structure with the solid of even rows and shifted to install.
Wherein, when described three-dimensional protrusion turbulence structure is triangle cone, its windward side two base angles are between 60～150 degree.
Wherein, the described three-dimensional turbulence structure that protrudes forms on oil-filled transformer fin by processing modes such as punching press, impressions.
Owing to having taked above technical scheme, the invention has the advantages that:
This long direction eddy generator, its three-dimensional protrusion turbulence structure technique is simple, be easy to processing, can solve traditional fin long direction eddy generator and be difficult to the problem of applying in oil-filled transformer fin, can effectively improve the heat convection efficiency of oil-filled transformer fin, thereby reduce the size of oil-filled transformer cooling-part, reduce costs, or under the prerequisite that does not increase thermal component area, improve the ability to work of oil-filled transformer, or reduce the demand to cooling blower.
Accompanying drawing explanation
Fig. 1 is three-dimensional turbulence structure (the triangle cone long direction eddy generator of take is example) the structural representation top view that protrudes of the present invention;
Fig. 2 is three-dimensional turbulence structure (the triangle cone long direction eddy generator of take the is example) diagrammatic side view of protruding of the present invention;
Fig. 3 is three-dimensional turbulence structure (the half-conical stage body long direction eddy generator of take is example) the structural representation top view that protrudes of the present invention;
Fig. 4 is three-dimensional turbulence structure (the half-conical stage body long direction eddy generator of take the is example) diagrammatic side view of protruding of the present invention;
Fig. 5 is three-dimensional turbulence structure (the half warhead shape long direction eddy generator of take is example) the structural representation top view that protrudes of the present invention;
Fig. 6 is three-dimensional turbulence structure (the half warhead shape long direction eddy generator of take the is example) diagrammatic side view of protruding of the present invention;
Fig. 7 is oil-filled transformer fin of the present invention (the triangle cone long direction eddy generator of take is example) front view;
Fig. 8 is the three-dimensional eddy current cross section schematic diagram that protrudes the formation of turbulence structure surface of the pyrometric cone bodily form;
Fig. 9 is the three-dimensional eddy current vertical section schematic diagram that protrudes the formation of turbulence structure surface of the pyrometric cone bodily form.
In figure: 1, triangle cone 2, oil-filled transformer fin
Specific embodiment
Take below and select triangle cone long direction eddy generator as example is for the present invention is described, but be not used for limiting the scope of the invention.
Referring to Fig. 1-2, Fig. 7, the present invention be a kind of triangular pyramidal long direction eddy generator of selecting be example, the operating mode of oil-filled transformer fin natural convection air is carried out to numerical computations.In Fig. 1, provided in oil-filled transformer fin manufacture process by punching press, the some three-dimensional turbulence structure that protrudes that the processing modes such as impression obtain, some turbulence structures are all long direction eddy generators, described turbulence structure is triangle cone, the bottom of triangle cone is connected or integrative-structure with oil-filled transformer fin is seamless, the numerical example adopts parameter as follows: oil-filled transformer fin length and width are 800mm and 480mm respectively, pyrometric cone height d=10mm, two angle α=90 °, base, windward side, described several triangle cones are set to some rows, odd number row shifts to install (see figure 7) with even rows, its horizontal spacing is S1=80mm, longitudinal pitch is S2=40mm, descending most row's triangle cone is a=240mm apart from oil-filled transformer fin distance from bottom.
Numerical result: under Natural Convection Conditions, the heat-sinking capability of the heat-sinking capability while having long direction eddy generator during without long direction eddy generator improves approximately 10%.Through test gained, the difform long direction eddy generator of the present invention all adopts aerofoil profile eddy generator and flow-disturbing column type eddy generator heat-sinking capability to improve 1%-5%, and technique of the present invention is simple, and cost is low.
Fig. 8 is the longitudinal Vortex velocity cross-sectional view that the air stream that obtains by numerical analysis software forms after pyrometric cone long direction eddy generator, Fig. 9 is the eddy current profilograph forming after pyrometric cone long direction eddy generator, utilize the longitudinal Vortex that long direction eddy generator produces to destroy air stream formed flow boundary layer when fin, heat convection is played to invigoration effect.
Obviously, above-mentioned example of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give all embodiments exhaustive.Every still row in protection scope of the present invention of apparent variation that technical scheme of the present invention extends out or change that belong to.
Claims (5)
1. an oil-filled transformer fin, is characterized in that: on oil-filled transformer fin, be provided with several three-dimensional turbulence structures that protrudes, described three-dimensional protrusion turbulence structure and oil-filled transformer fin are structure as a whole.
2. a kind of oil-filled transformer fin as described in right 1, is characterized in that: the described three-dimensional turbulence structure that protrudes is for comprising triangle cone or half-conical stage body or half warhead shape projection.
3. a kind of oil-filled transformer fin as described in right 1, is characterized in that: described several three-dimensional turbulence structures that protrude are set to some rows, and odd number row is protruded turbulence structure with the solid of even rows and shifted to install.
4. a kind of oil-filled transformer fin as described in right 1 or 2, is characterized in that: when described three-dimensional protrusion turbulence structure is triangle cone, its windward side two base angles are between 60～150 degree.
5. a kind of oil-filled transformer fin as described in right 1, is characterized in that: the described three-dimensional turbulence structure that protrudes forms on oil-filled transformer fin by processing modes such as punching press, impressions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310063207.9A CN104019690A (en) | 2013-02-28 | 2013-02-28 | Oil-immersed transformer cooling fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310063207.9A CN104019690A (en) | 2013-02-28 | 2013-02-28 | Oil-immersed transformer cooling fin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104019690A true CN104019690A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310063207.9A Pending CN104019690A (en) | 2013-02-28 | 2013-02-28 | Oil-immersed transformer cooling fin |
Country Status (1)
| Country | Link |
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| CN (1) | CN104019690A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591964A (en) * | 2018-02-06 | 2018-09-28 | 太仓市华盈电子材料有限公司 | LED car lamp high efficiency and heat radiation module |
| CN109764737A (en) * | 2018-12-27 | 2019-05-17 | 西安交通大学 | The composite structure surface of refrigerant closed cycle flash boiling spray cooling reinforcing heat exchange |
| CN113301778A (en) * | 2021-05-12 | 2021-08-24 | 美达电器(重庆)有限公司 | Wall-hanging direct current fills electric pile's forced air cooling heat abstractor |
| WO2022141107A1 (en) * | 2020-12-29 | 2022-07-07 | 华为技术有限公司 | Storage device |
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| JPS63294494A (en) * | 1987-05-27 | 1988-12-01 | Nippon Denso Co Ltd | Heat exchanger |
| CN1227336A (en) * | 1998-02-24 | 1999-09-01 | 三菱电机株式会社 | Device for controlling diffused air |
| US20020190403A1 (en) * | 2001-06-13 | 2002-12-19 | Nutter Dale E. | Stepped downcomer apparatus and vapor-liquid contact apparatus with same |
| CN2622658Y (en) * | 2002-12-19 | 2004-06-30 | 涂丽雪 | Heat exchanging fin plate able to generate eddy current |
| US6806017B2 (en) * | 1999-12-17 | 2004-10-19 | Phoqus Limited | Electrostatic application of powder material to solid dosage forms |
| CN102095328A (en) * | 2011-03-02 | 2011-06-15 | 常州大学 | M-type corrugated-plate heat exchanger plate bundle with positioning control point |
| CN201892469U (en) * | 2010-12-21 | 2011-07-06 | 东南大学 | Fractal surface structured heat exchange pipe |
-
2013
- 2013-02-28 CN CN201310063207.9A patent/CN104019690A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63294494A (en) * | 1987-05-27 | 1988-12-01 | Nippon Denso Co Ltd | Heat exchanger |
| CN1227336A (en) * | 1998-02-24 | 1999-09-01 | 三菱电机株式会社 | Device for controlling diffused air |
| US6806017B2 (en) * | 1999-12-17 | 2004-10-19 | Phoqus Limited | Electrostatic application of powder material to solid dosage forms |
| US20020190403A1 (en) * | 2001-06-13 | 2002-12-19 | Nutter Dale E. | Stepped downcomer apparatus and vapor-liquid contact apparatus with same |
| CN2622658Y (en) * | 2002-12-19 | 2004-06-30 | 涂丽雪 | Heat exchanging fin plate able to generate eddy current |
| CN201892469U (en) * | 2010-12-21 | 2011-07-06 | 东南大学 | Fractal surface structured heat exchange pipe |
| CN102095328A (en) * | 2011-03-02 | 2011-06-15 | 常州大学 | M-type corrugated-plate heat exchanger plate bundle with positioning control point |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591964A (en) * | 2018-02-06 | 2018-09-28 | 太仓市华盈电子材料有限公司 | LED car lamp high efficiency and heat radiation module |
| CN109764737A (en) * | 2018-12-27 | 2019-05-17 | 西安交通大学 | The composite structure surface of refrigerant closed cycle flash boiling spray cooling reinforcing heat exchange |
| CN109764737B (en) * | 2018-12-27 | 2020-07-28 | 西安交通大学 | Composite structure surface for enhancing heat exchange of refrigerant closed circulation flash evaporation spray cooling |
| WO2022141107A1 (en) * | 2020-12-29 | 2022-07-07 | 华为技术有限公司 | Storage device |
| CN113301778A (en) * | 2021-05-12 | 2021-08-24 | 美达电器(重庆)有限公司 | Wall-hanging direct current fills electric pile's forced air cooling heat abstractor |
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Application publication date: 20140903 |
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