JPS59208708A - Radiator of oil-immersed transformer and the like - Google Patents

Abstract

PURPOSE:To avoid separation of the air and improve the radiation efficiency by providing reinforcement members of a prescribed shape on oil paths formed by radiation plates. CONSTITUTION:Oil paths 6 are formed by uneven-shaped parts 7 provided to radiation plates 1. Reinforcement convex stripes 8 are provided to the parts forming the oil paths 6 along the longitudinal direction of the uneven-shaped parts 7 with a suitable interval. A concave step part 9 which makes the air flow along a valley groove of the oil path uneven-shaped part 7 to the top of the reinforcement convex stripe 8. The upper and lower end surfaces of the reinforcement convex stripe 8 are formed into slopes 10 which have top planes of the narrow width. By providing such reinforcement convex stripes 8, the air which flows along the valley grooves of the uneven-shaped parts 7 of the oil paths 6 flows without leaving the surfaces of the valley grooves. With this constitution, the separation of the air is avoided and the radiation efficiency is improved.

Description

【発明の詳細な説明】 この発明は、油入変圧器類に取付けられるパネル式の放
熱ｇ４に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a panel-type heat dissipation g4 that is attached to oil-immersed transformers.

油入変圧器類に使用されるパネル式の放熱器は、屋外設
置か多く、このため構造的には雨水がたまらぬ形状でな
ければならず、二次伝熱面は考えられないと共に、自冷
の場合浦の上下温度差たけて循環冷却する用純な構造で
なけれはならない。Panel-type radiators used in oil-immersed transformers are often installed outdoors, so the structure must be designed to prevent rainwater from accumulating, and secondary heat transfer surfaces cannot be considered, and self-contained In the case of cold storage, the structure must be simple enough to circulate and cool the water by increasing the temperature difference between the top and bottom of the pool.

従って面積（体積）当たりの放熱ＫＷ数（熱交換谷）を
改善するには、例え数％でも大変なことである。Therefore, it is difficult to improve the heat radiation KW number (heat exchange valley) per area (volume) even by a few percent.

放熱効率を改善することは直接的には放熱面端を減らせ
ることになるか、実際；こはよりコンパクト（こなるた
め材料の節減は勿論、放熱Ｋ　Ｗ数当りの絶縁油及び使
用する放熱器の本数が餓るため、付帯的な構造物費用、
運搬費用、組立費用等がコストダウンできるほか、放熱
器据付面端が縮少されるため、用池の節減が図れ狭い土
地でも有効活用できる。Improving heat dissipation efficiency does not directly mean reducing the heat dissipation surface edge; in fact, it is more compact (because it is smaller, it not only saves on materials, but also reduces the amount of insulating oil and heat dissipation used per heat dissipation KW). As the number of vessels decreases, incidental structure costs,
Not only can transportation costs and assembly costs be reduced, but the edge of the radiator installation surface is also reduced, reducing the need for irrigation ponds and making it possible to effectively utilize small areas of land.

史に従来の放熱器は一般に大型で輸送限界をオーバする
ことから放熱器を分解搬送していたか、コンパクト化さ
れること（どより全装のままで運搬することができ、放
熱器の小型化は、品質、信頼性連撮コスト等に与えるメ
リットは計り知れないものである。Historically, conventional radiators were generally large and exceeded the transport limit, so they had to be disassembled for transport, or they were made more compact (more importantly, they could be transported fully assembled, making the radiator smaller). The advantages of this method in terms of quality, reliability, continuous shooting cost, etc. are immeasurable.

ところで、従来のパネル形放熱器は、同一の薄鋼イルの
放熱イルを虫ね合わせ、周辺部および複数個所の中間溶
接部をンーム溶接あるいはスポット溶接して一体化させ
、中間溶接部り、外の部分をそれぞれ独立した空洞部に
形成し、この空洞部を冷Ｊｉｌ媒体である絶縁箱の通路
とすると共に、熱交換率を向上するため通路部分の放熱
器を凹凸形状に折曲げＩｌｌ］　’Ｌ　Ｌ、史に放熱イ
ルの強度を向上さ斗るため例えは特公昭５７〜１３４６
９２号公報や特公昭５２−３９１７８号公報の如く、通
路部分に凹凸形状の騎手方向に交叉するブリッジ状の補
強構造を設けた構へ（こ形成されていた。By the way, conventional panel-type heat sinks are made by combining heat dissipation coils made of the same thin steel coil, and by welding or spot welding the periphery and multiple intermediate welds. The sections are formed into independent cavities, and these cavities are used as passages for the insulating box, which is a cold Jil medium, and the radiators in the passage parts are bent into an uneven shape to improve the heat exchange efficiency. L L, for example, to improve the strength of heat dissipation coils from 1984 to 1346.
As in Japanese Patent Publication No. 92 and Japanese Patent Publication No. 52-39178, a bridge-like reinforcing structure having an uneven shape and crossing in the direction of the jockey was provided in the passage portion.

１−記のようｒ、７放熱器は、自冷時、風冷時共、放熱
）ｌυの外面を１−昇する空気と放熱板の通路部分きの
１と）蝕に、より内ｊη≦の１什を冷ＨＪするものであ
るか、通路１゛ηＳ分の外商において凹凸形状の外面溝
を補強構造か満切っているため、通路壁面に沿って上昇
する空気はこの補強構造のブリッジに衝突すると通路壁
面から１４１１反することになり、従って各補強４Ｍ　
；告（７）　的’、　、１１　ｈγ１白□において通路
壁面に対する空気の剥＋ＩＨｌｕ現象が発生し、放熱効
率を低Ｆさせるという大きな欠点がある。1- As shown in the above, the 7 radiator is radiating heat during both self-cooling and wind-cooling. This may be due to the fact that the reinforcing structure has a groove on the outer surface of the concave and convex shape in the outer section for 1゛ηS of the passageway, so the air rising along the passageway wall is absorbed by the bridge of this reinforcing structure. When it collides, it will move 1411 away from the passage wall, so each reinforcement 4M
; Notice (7) Target', , 11 In hγ1 white □, there is a major drawback in that the peeling of air against the passage wall surface + IHlu phenomenon occurs, which lowers the heat dissipation efficiency.

この発明は」１記のような欠点を解消するためになされ
たものであり、通路壁面に対する空気の剥）１１Ｙ現象
がなく、放熱効率の向上により形状の小型化が可能にな
る放熱器を提供するのが目的である。This invention was made in order to eliminate the drawbacks mentioned in item 1 above, and provides a heat radiator that does not have the phenomenon of air peeling off from the passage wall surface and can be made smaller in size by improving heat radiation efficiency. The purpose is to.

この発明の構成は、二枚を重ね合わせた放熱イル・に空
洞部を設パすでｎｌ＋道を形成し、この油導縮分の放熱
１Ｊソを凹凸形状に屈曲させる吉共に共振を防止しｔυ
る間隔に相対向させ、この油導配列；こ交叉するよう設
けた補強凸条の頂部に曲直の外面凹溝に沿−）て流れる
空気を通過させる凹段部を設け、補強凸条の１貞上にお
いて、曲直の外面に沿って流れる空気の曲直外面に対す
る剥１４Ｗ現象を防［トするようｊこし１こものである
。The structure of this invention is to form a hollow part in the heat dissipation coil made of two stacked heat dissipation coils to form a nl+ path, and to bend the heat dissipation 1J of this oil conduction and contraction into an uneven shape to prevent resonance. tυ
A concave step is provided at the top of the reinforcing protrusions provided so as to intersect with each other at the intervals of the oil guide arrangement. In order to prevent the phenomenon of separation of the air flowing along the curved outer surface against the curved outer surface.

辺、下、この発明を添付図面の実施例に基ついて説明す
る。BRIEF DESCRIPTION OF THE DRAWINGS The present invention will now be described with reference to embodiments of the accompanying drawings.

図示のように、二枚の同一薄鋼板で形成した放熱（ル１
と１を相対向して重ね合わせ、周縁部２をソーム溶接３
により、また中間部は一定間隔て縦方向のスポット溶接
４により一体化して放電器本俸へを形ｊ戎している。As shown in the figure, heat dissipation (ru 1
and 1 are overlapped facing each other, and the peripheral part 2 is welded by some welding 3.
In addition, the intermediate portion is integrated by vertical spot welding 4 at regular intervals to form the main body of the discharger.

両枚熱４Ｊ、Ｊ　１　、１において、中間溶接部５の間
及び中間Ｇ接部上置辺部２のンーム溶接３の間に空洞部
を設けて曲直６か形成されている。In both sheet heats 4J, J1, 1, a hollow part is provided between the intermediate welding part 5 and between the beam welding 3 of the upper side part 2 of the intermediate G contact part, and a curved straight part 6 is formed.

この曲直６は第３図に示すように、両放熱（ル１゜１の
空Ａｉ６部ｊこ該当する部分を連続する凹凸形状７に屈
曲加工し、１折面角形や菱形の複数条に細分イヒして形
成さねている。As shown in Fig. 3, this curved straight line 6 is made by bending the corresponding part of the hollow Ai 6 of the 1° 1 into a continuous uneven shape 7, and subdividing it into multiple strips of rectangular or rhombic shapes. It's hard to form.

図示の場合、凹凸形状７は三角形の山吉谷が連続する形
状に形成され、この曲直６を形成する部分における両数
熱板１と１の接近部分の対向面間には一定の間隔ａを設
け、変圧４類の運１伝時に発汁する販動により放熱板１
．１か共振するのを防止している。In the illustrated case, the uneven shape 7 is formed in the shape of a series of triangular peaks and valleys, and a certain distance a is provided between the facing surfaces of the hot plates 1 and 1 in the portion where the curved straight 6 is formed. , Heat sink 1 due to the sales that emit water during the transfer of transformer type 4.
．． This prevents resonance from occurring.

この間隔ｄは共振防止の目的を達成する寸法てあれはよ
＜、イダＪえは０．５ｍ〜２Ｍ程度に設定される。。The distance d is set to a value of about 0.5 m to 2 m, whichever is necessary to achieve the purpose of preventing resonance. .

１−記間隔ａの形成により、並列状態に細分化された／
ＩＩＩ道６は間隔ａを介して連通ずることになる。1- Subdivided into parallel states by forming the interval a/
The III path 6 will communicate through the interval a.

上記曲直６における凹凸形状７の形成により両数熱板１
，１の放熱面積が著しく増大し、熱交換率を向−１ニさ
せている。By forming the uneven shape 7 in the curved straight line 6, both the heating plates 1
.

両放熱イル１，１において、浦直６を形成する部分には
、凹凸形状１の稜線に対して直交する補強凸条８が、凹
凸形状７の長平方向に対して適当な間隔を存して設けら
れている。In both heat dissipation coils 1, 1, reinforcing protrusions 8 perpendicular to the ridgeline of the uneven shape 1 are provided at appropriate intervals in the longitudinal direction of the uneven shape 7 in the portion forming the straight ridge 6. It is provided.

この補強凸状８は、連通ずる浦直６がわずかな内圧（こ
より反転、変形、膨張するのを防し卜するｔ−めのもの
であり、第３図と第４図に示すようにその頂部は凹凸形
状７の山と等しい高さとなるよう、凹凸形状７における
谷の部分を外方に膨出させることによって形成−されて
いる。This reinforcing convex shape 8 is a T-th one that prevents the communicating straight ura 6 from being reversed, deformed, and expanded due to slight internal pressure, and as shown in FIGS. 3 and 4. The top portion is formed by bulging out the valley portion of the uneven shape 7 so as to have the same height as the peaks of the uneven shape 7.

なお、補強凸条８はその内部が士下腹数条の浦直６と連
通ずると共に一油導内絶、す油の流れを阻害することの
ない構造になっている。The inside of the reinforcing convex strip 8 communicates with the Ura Nao 6 of several strips on the lower side of the tank, and has a structure that does not impede the flow of the oil.

上記補強凸条８の頂面には、油道凹凸形状の谷に／ｉに
沿って流れる空気を通過させる凹段部９か設けられ、こ
の補強凸条８の上下端面は頂面が細幅となる傾斜面１０
に形成されている。A recessed step 9 is provided on the top surface of the reinforcing ridge 8 to allow the air flowing along /i to pass through the valley of the oil channel uneven shape, and the upper and lower end surfaces of the reinforcing ridge 8 have a narrow top surface. The inclined surface 10
is formed.

ト詔油導６の表面凹凸形状の谷溝りこ沿って流机る空ミ
に１寸、トーン（゛途中で補強凸条８の傾τ゛１而１０
ζこＭ’■突することになるか、補強凸条８には油導内
に向（すて四人する凹段部９か設けられて結果的１こは
突帛、１ｆろｒ　ａ！；　＜なっているため、上昇空気
はこの凹段部９をＪＥｎって１−位谷溝に流れ込むこと
になり、従って空・気（＾谷、・Ｓ、の授藺から喋れる
ことなく流れ、補強凸条８の１部において凹凸形、伏７
と空気の剥媚［現象のイｆｉ／−トを防き、熱交換率を
向上さぜるこさになる。1 inch into the air flowing along the uneven surface of the oil guide 6, the tone (the inclination of the reinforcing ridges 8 in the middle)
The reinforcing protrusion 8 is provided with a concave step 9 that extends into the oil guide, resulting in one protrusion and one floor a! ; Since the rising air passes through this concave step 9 and flows into the 1st valley groove, it flows without being able to speak from the teaching of air/air (^ valley, ・S), A part of the reinforcing convex strip 8 has an uneven shape, and is bent 7.
This prevents air aphrodisiacs from occurring and improves the heat exchange rate.

また、凹凸形状７の谷溝に沿って旧姓する空気に対し、
補強凸条８か強制的に乱流を起す役目を眼し、より低温
の空気を油道６の表面に接ｊ蝕させることになり、一段
と熱交換効率を同トさせることになる。In addition, for the air that flows along the valley grooves of the uneven shape 7,
The reinforcing protrusions 8 serve to forcefully create turbulent flow, allowing lower temperature air to come into contact with the surface of the oil pipe 6, thereby further increasing the heat exchange efficiency.

なお１−記実施：列では、細分化された曲進の断面形状
か菱形である場合について説明したが、この油首断面形
状はその他市方形状、円形状なと相対向する二枚の稜線
形薄鋼板によって形成されるあらゆる形状か考えられ、
上記実施例に限定するものてはない。In addition, in the section 1-Execution, we explained the case where the cross-sectional shape of the subdivided curved line is rhombic, but the cross-sectional shape of this oil neck can also be square-shaped, circular, or two ridge lines facing each other. Any shape that can be formed by thin steel sheets can be considered.
The invention is not limited to the above embodiments.

また、図に示す１１および１２は士、下の開口部である
。すなわち放熱器本体１は、中間溶接部５間が上記の如
く構成され、上下に開口した袋状の冷却パネル要素であ
る。Further, numerals 11 and 12 shown in the figure are lower openings. That is, the radiator main body 1 is configured as described above between the intermediate welded portions 5, and is a bag-shaped cooling panel element that is open at the top and bottom.

この開口部１１．１２は、放熱器本体への多数枚を一定
間隔をおいて、変圧器内と連通し上下に配置［ソされた
上下へツタ−（図示を省略）に迎Ｊｉさせるだめの開口
部である。These openings 11 and 12 are formed by connecting a large number of sheets to the radiator body at regular intervals, communicating with the inside of the transformer, and placing them above and below [not shown]. It is an opening.

思トのまうに、この発明によると、上記のような構成で
あるので、以下に列挙する効果かある。As expected, according to the present invention, since it has the above-mentioned configuration, it has the following effects.

（１）油道表面の凹凸形状に対して両町に補強凸条を設
け、この補強凸条の頂面に凹段部を形成したのて、自冷
時、風冷時共、曲選表面に沿う空気の流れが円、ｉＭに
なり、補強凸条部直」二位油、ての空気の剥離現象を防
止でき、しかも空気の乱流を強制的に起して常時低温空
気を油導表面に接触させることができるので、熱交換効
率を大幅に向」二させることができる。(1) Reinforcement protrusions are provided on both sides of the uneven shape of the oil channel surface, and concave steps are formed on the top surfaces of these reinforcing protrusions. The air flow along the reinforcing ridges becomes circular, which prevents the air from separating from the surface of the reinforcing ridges, and also forces air turbulence to constantly direct low-temperature air to the oil-conducting surface. Since the heat exchange efficiency can be greatly improved, the heat exchange efficiency can be greatly improved.

（２）　　凹凸形状と補強凸条の成形加工は、近似形状
になるため、材料幅方向における／１４］道補強部近傍
の材料幅り）はとんど稜、虚部と変化がなく、油導補強
の強度をぞこなうことなく、成形された製品のす１′ハ
方向の成形切断の必要がなくなる。(2) Since the uneven shape and the reinforcing ridges are formed into approximate shapes, /14] material width in the vicinity of the reinforcing part in the material width direction is mostly the same as the ridge and imaginary part, and the oil There is no need to cut the molded product in the 1' direction without compromising the strength of the conductive reinforcement.

（３）　　浦１．角の補強構造として、１ｊ４１凸形状
の稜線モを一゛１１−坦に結んた架稿部を設け、これに
より内圧にｉ［ｉＪえられるような簡単な構造としてで
なく、局部的ｌこ小さな範囲で段階状に断面形状を複・
准化して補強凸条を形成したので、加工硬化による薄イ
ルの強１（＋と剛性を大幅に向Ｊニさせることかでき、
／ｌＩ］道内の真空ないし２”Ｖｃｒｎ程度の圧力変化
による膨張、反転等に対しても、変れた強度を発揮する
こ吉ができる。(3) Ura 1. As a corner reinforcement structure, we provide a frame section in which 1j41 convex ridge lines are connected flatly. Duplicate the cross-sectional shape in stages within the range.
By forming reinforcing convex strips, it is possible to greatly improve the strength of the thin coil by work hardening.
/lI] Kokichi can exhibit unusual strength even when it expands or reverses due to internal vacuum or pressure changes of about 2"Vcrn.

（／Ｉ）　　送油（」弔沌な断面の）巣、跣でなく油導
補強部に於ける断面の変化があるため、油つ）攪拌され
、浦、ｌ晶が均等化されることにより熱交換効率つＳ改
善される。(/I) Because there is a change in the cross-section of the oil-conducting reinforcing part, rather than the nest or leg, the oil is stirred and the Ura and l crystals are equalized. Heat exchange efficiency is improved.

（５）絞線、鄭の頂部を結ふ毛足な補強構造の場合綾線
谷部と平坦なブリッチ部を結ぶ三角形状の斜面が形成さ
れるが、補強凸条の頂部に凹段部を形成することにより
、斜面の面積を極単に少なくでき、従って塵校の堆積か
なく、経時変化による効率低下の発生が全くなくなる。(5) In the case of a bushy reinforcing structure that connects the tops of the striation lines and ridges, a triangular slope connecting the twill valley and the flat brittle area is formed, but a recessed step is formed at the top of the reinforcing ridge. By forming such a structure, the area of the slope can be extremely reduced, and therefore, there is no accumulation of dust, and there is no reduction in efficiency due to changes over time.

（６）放熱面積当たりの絶縁油層を１５％程度減少せし
めることができ、しかも絶縁油嘔の節限は一回限りでな
く、絶縁油交換ことに、それぞれ同ニアＨすっ節限する
ことができる。(6) The insulating oil layer per heat dissipation area can be reduced by about 15%, and the insulating oil layer can be saved not only once, but also in the same near-H period when changing the insulating oil. .

（７）　　発効で化、コンパクト化されたため、放熱器
本数をそれだけ減らすことができ、こねにより、（圧器
への放熱器取付工数および放熱器付（品（バルブ、フラ
ンチなど）を少なくすることができる。(7) Since it has been made more compact and compact, the number of radiators can be reduced accordingly, and by kneading, it is possible to reduce the number of man-hours for installing a radiator to a pressure vessel and the number of products (valve, flange, etc.) required for installing a radiator. can.

’８）　　現地据付場所へ放熱器を輸送するための梱包
費、輸送費を削減することができる。'8) Packaging and transportation costs for transporting the radiator to the local installation site can be reduced.

（９）　　放熱器の床面積が小さくなるため、変圧器全
体としての据付面積を縮小することができる。(9) Since the floor area of the radiator is reduced, the installation area of the transformer as a whole can be reduced.

１１０）従来例では全装微速てきなかったものでも、放
熱器のコンパクト化により可能となり、変圧器の品質、
コストを大巾に改善することができる。110) Even though it was not possible to achieve full speed in the conventional case, it is now possible by making the radiator more compact, improving the quality of the transformer,
Costs can be significantly improved.

（Ｊｌ）放熱器の製作においては、放熱面積当たりの溶
接長さが短かくなり、省エネルギー、加工玉数の低減が
達成される。(Jl) In the production of a heat sink, the welding length per heat radiation area is shortened, resulting in energy savings and a reduction in the number of processed beads.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの発明に係る放熱器の正面図、第２図は同上
要部の拡大正面図、第３図は同じく要部の拡大縦断面図
、第４図は同斜硯図である。 １は放熱板、６は曲直、７は凹凸形状、８は補強凸条、
９は凹段部、１０は傾斜面。 特許出願人　福　元　勝三部 同　代理人　鎌　■」　文　ニFIG. 1 is a front view of a radiator according to the present invention, FIG. 2 is an enlarged front view of the essential parts of the same, FIG. 3 is an enlarged vertical cross-sectional view of the essential parts, and FIG. 4 is an oblique view of the same. 1 is a heat dissipation plate, 6 is a straight curve, 7 is an uneven shape, 8 is a reinforcing convex strip,
9 is a recessed step, and 10 is an inclined surface. Patent applicant: Katsusanbu Fukumoto Agent: Kama ■” Letter d

Claims (1)

【特許請求の範囲】[Claims] 二枚の放熱板を重ね合わせて周縁部および中間部を溶接
し、隣接する各溶接部間に空洞部を形成して曲直とし、
この曲直／Ｊ（断面角形等の複数条に形成されるように
前記薄鉄（ルの空洞部位置を連続する凹凸形状に屈曲さ
せると共に共振を防止し得る間隔に相対向させ、前記曲
直を補強するよう油導ｉ配列に交叉する補強凸条を適当
な間隔て設け、この補強凸条の頂部に曲進凹凸形状の外
面凹溝に治って流れる空気を通過させる凹段部を設け、
曲直外面表空気の剥１帷現象を防止するようにした油入
変圧器類の放熱器。Two heat sinks are overlapped and the peripheral and middle parts are welded, and a hollow part is formed between each adjacent welded part to make it straight.
The hollow part of the thin iron (J) is bent into a continuous uneven shape so as to be formed into multiple strips with a rectangular cross section, and the hollow part of the thin iron (J) is bent into a continuous uneven shape and faced to each other at intervals that can prevent resonance, thereby reinforcing the bend. Reinforcing protrusions are provided at appropriate intervals to intersect the oil guide arrangement, and at the top of the reinforcing protrusions, a concave step is provided at the top of the reinforcing protrusion to allow the flowing air to pass through the grooves on the outer surface of the curved concave and convex shape.
A heatsink for oil-immersed transformers that prevents the phenomenon of stripping of air on the outer surface of a curve.