JP2013198205A - Ventilation device for switchgear - Google Patents

Ventilation device for switchgear Download PDF

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JP2013198205A
JP2013198205A JP2012060367A JP2012060367A JP2013198205A JP 2013198205 A JP2013198205 A JP 2013198205A JP 2012060367 A JP2012060367 A JP 2012060367A JP 2012060367 A JP2012060367 A JP 2012060367A JP 2013198205 A JP2013198205 A JP 2013198205A
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ventilation
switchgear
storage box
ventilation fan
plate
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Koji Matsuoka
浩司 松岡
Yukio Miyake
由紀夫 三宅
Koichi Nagayama
浩一 永山
Kazuhiro Ishiga
数廣 石賀
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Chugoku Electric Power Co Inc
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Chugoku Electric Power Co Inc
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Abstract

PROBLEM TO BE SOLVED: To provide a ventilation device for a switchgear which unites devices into a single body, satisfies rain water blow-in measures and nest building measures, can be diverted into to the existing space and requires a shorter time for attaching and detaching work.SOLUTION: A ventilation device 2 for a switchgear is arranged under an eave 1a of a switchgear 1 includes a housing box 10 being the shape of a box extending along the eave 1a and attached detachably under the eave 1a, a plurality of ventilation fans 20 provided in a longitudinal direction in the housing box 10 to arouse air in the switchgear 1, a ventilation plate 11 provided a bottom plate of the housing box 10 and having an air hole 11a small enough for a small animal not to intrude formed, and a blow-in prevention plate 12 provided between the ventilation fans 20 and the ventilation plate 11 in the housing box 10 to prevent rain water from blowing into a ventilation fan side.

Description

この発明は、スイッチギヤ内の高温の気体を換気扇により強制的に換気し、スイッチギヤ内の温度上昇を防止するスイッチギヤ用換気装置に関する。   The present invention relates to a switchgear ventilator that forcibly ventilates a high-temperature gas in a switchgear with a ventilation fan and prevents a temperature rise in the switchgear.

一般に、スイッチギヤは、高圧や２万ボルト級の特別高圧配電線を開閉したり事故から保護するために、遮断器などを保護継電器などと一緒に箱型の金属製ボックス内に収めたものでる。このようなスイッチギヤにおいては、主要開閉機器間が仕切板によって区画されていて、この区画された各前面に開閉扉が複数設けられており、作業者が点検、修理などの保守作業を行えるようになっている。この区画された内部は、夏場には内部温度が４０℃まで上昇するとともに、雨季には湿度が高くなるため、スイッチギヤの箱内の温度と湿度とを適正な状態にたもつ必要があった。   In general, a switchgear is a box-type metal box with a protective relay, etc., in order to open and close high-voltage and 20,000-volt special high-voltage distribution lines and protect them from accidents. . In such a switchgear, the main opening / closing device is partitioned by a partition plate, and a plurality of opening / closing doors are provided on each partitioned front surface so that an operator can perform maintenance work such as inspection and repair. It has become. In the partitioned interior, the internal temperature rose to 40 ° C in summer and the humidity increased in the rainy season, so it was necessary to keep the temperature and humidity in the switchgear box in an appropriate state. .

そこで、スイッチギヤには、箱の開閉扉ごとの上部庇下である前面と背面とに、既存スペースである換気孔が複数開口され、この換気孔にスイッチギヤ用換気装置が取り付けられている（図４参照）。このような従来のスイッチギヤ用換気装置としては、箱の前面と背面との換気孔に換気扇を２個づつ取り付ける構造であり、スイッチギヤの箱内の温度と湿度とを適正な状態にたもっていた。また、換気扇は、スイッチギヤの外側に取り付けられているため、営巣防止や風雨吹込み防止の対策として、カバーなどの各種別部品が取り付けられていた。   Therefore, in the switchgear, a plurality of existing ventilation holes are opened on the front and back surfaces of the upper armpit of each box door, and a switchgear ventilation device is attached to the ventilation holes ( (See FIG. 4). Such a conventional switchgear ventilation device has a structure in which two ventilation fans are attached to the ventilation holes on the front and back of the box, and the temperature and humidity in the switchgear box are kept in an appropriate state. It was. In addition, since the ventilation fan is attached to the outside of the switchgear, various other parts such as a cover are attached as a measure for preventing nesting and blowing wind and rain.

この換気扇の対応年数は１０〜１５年程度であるが、スイッチギヤは２０〜３０年使用される。すなわち、従来のスイッチギヤでは、換気扇の対応年数１０〜１５年に対して、スイッチギヤは２０〜３０年使用するため、換気扇の取替えが発生する。   Although this ventilation fan has a corresponding age of about 10 to 15 years, the switchgear is used for 20 to 30 years. That is, in the conventional switchgear, since the switchgear is used for 20 to 30 years with respect to the corresponding age of the ventilator fan for 10 to 15 years, replacement of the ventilation fan occurs.

この場合、スイッチギヤの換気扇には、営巣防止や風雨吹込み防止の対策をしており、分解作業に時間と手間を要する。特に、スイッチギヤ内の機器側（遮断器（ＣＢ）、計器用変圧器（ＧＰＴ）、充電器、開閉器などの機器収納側）では、換気扇の取替時に充電部に接近する恐れ（危険）があり、場合によってはスイッチギヤの運転停止(停電)が必要になる。さらに、換気扇の運転状態の確認は、点検時に箱の外から換気扇が見えないため、起動・停止の確認が難しく、音と振動により判断しているため信頼度が低い。以上がスイッチギヤの換気扇の従来の状況であった。   In this case, the switchgear ventilation fan has measures for preventing nesting and blowing wind and rain, and requires time and labor to disassemble. In particular, on the equipment side in the switchgear (the equipment storage side of the circuit breaker (CB), instrument transformer (GPT), charger, switch, etc.), there is a risk of approaching the charging part when replacing the ventilation fan (danger) In some cases, switchgear operation must be stopped (power failure). In addition, since the ventilation fan cannot be seen from outside the box at the time of inspection, it is difficult to confirm the start / stop, and the reliability of the operation state of the ventilation fan is low because it is judged by sound and vibration. This is the conventional situation of the switchgear ventilation fan.

ところで、従来のスイッチギヤ用換気装置として、例えば、換気扇がスイッチギヤの箱体の背板に装着され、この換気扇をさらにカバーで覆って、当該カバーをスイッチギヤに着脱可能にした構造が知られている（例えば、特許文献１参照。）。すなわち、換気扇の保守点検または取換作業等に際しても、カバーだけを外せばよく、その作業がきわめて容易で、かつ、箱体の背部のスペースも特別なスペースを要しなかった。   By the way, as a conventional switchgear ventilation device, for example, a structure is known in which a ventilation fan is mounted on a back plate of a switchgear box, and this ventilation fan is further covered with a cover so that the cover can be attached to and detached from the switchgear. (For example, refer to Patent Document 1). That is, it is only necessary to remove the cover for maintenance inspection or replacement work of the ventilation fan, the work is extremely easy, and the space on the back of the box does not require any special space.

実開平０５−５０９１０号公報Japanese Utility Model Publication No. 05-50910

しかしながら、従来のスイッチギヤ用換気装置（特許文献１）では、カバーを外すだけで換気扇の保守点検および取替作業等を容易に行えるが、この装置自体が屋外使用に耐えられるものではないため、スイッチギヤには使用できないという不具合があった。すなわち、電気室内（特許文献１の第３図の符号２０参照）に設置される屋内式換気装置のため、屋外での使用に対応したものではなかった。   However, in the conventional switchgear ventilation device (Patent Document 1), it is possible to easily perform maintenance inspection and replacement work of the ventilation fan just by removing the cover, but this device itself cannot withstand outdoor use. There was a problem that it could not be used for switchgear. That is, since it is an indoor type ventilator installed in an electric room (see reference numeral 20 in FIG. 3 of Patent Document 1), it is not compatible with outdoor use.

そこで、この発明は、装置が一体化され、雨水の吹込み対策や営巣対策を満足し、既設スペースへの流用が可能であるとともに、着脱作業が短時間になるスイッチギヤ用換気装置を提供することを目的としている。   Therefore, the present invention provides a switchgear ventilation device that is integrated with the device, satisfies rainwater blowing countermeasures and nesting countermeasures, can be diverted to an existing space, and can be attached and detached in a short time. The purpose is that.

前記の課題を解決するために、請求項１の発明は、スイッチギヤの庇下に配設されるスイッチギヤ用換気装置であって、前記庇に沿って延びる箱型で、前記庇下に着脱自在に取り付けられる収容箱と、前記収容箱内の長手方向に複数配設され、前記スイッチギヤ内の空気を喚起する換気扇と、前記収容箱の底板として配設され、小動物の侵入が不可能な大きさの通気孔が形成された通気板と、前記収容箱内で前記換気扇と通気板との間に配設され、雨水が前記換気扇側に吹き込むのを防止する吹き込み防止板と、を備える、ことを特徴とする。   In order to solve the above-mentioned problems, the invention of claim 1 is a switchgear ventilation device disposed under the arm of the switchgear, and is a box type extending along the armpit, and is attached to and detached from the armpit. A storage box that can be freely attached, a plurality of fans arranged in the longitudinal direction in the storage box, and a ventilation fan that wakes up the air in the switchgear, and a bottom plate of the storage box, and invasion of small animals is impossible A ventilation plate formed with a vent hole of a size, and a blow prevention plate disposed between the ventilation fan and the ventilation plate in the storage box and preventing rainwater from blowing into the ventilation fan side, It is characterized by that.

この発明によれば、収容箱内に換気扇を収容して雨水の吹込み対策および営巣対策を満足させつつ一体化され、スイッチギヤの庇下の既設スペースに収容箱ごと着脱可能にすることで、換気扇の着脱作業が短時間になる。また、スイッチギヤの庇下から収容箱ごと取り外せることで、換気扇の保守点検および取換作業等に際して、スイッチギヤ外側の庇下で作業でき極めて安全で、かつ、容易に点検することができる。   According to this invention, the ventilation fan is housed in the housing box and integrated while satisfying the measures against blowing rainwater and measures against nesting, and by making the housing box detachable in the existing space under the switchgear, The ventilation fan can be attached and detached in a short time. Further, by removing the entire storage box from the arm of the switch gear, it is possible to work under the arm of the outside of the switch gear for maintenance inspection and replacement work of the ventilation fan, and it is extremely safe and easy to inspect.

請求項２の発明は、請求項１に記載のスイッチギヤ用換気装置において、収容箱の長手方向の両側部に配設され、庇と収容箱の間を塞ぐ閉塞板を備える、ことを特徴とする。   The invention of claim 2 is characterized in that, in the switchgear ventilation device according to claim 1, the switchgear ventilation device includes a closing plate disposed on both sides in the longitudinal direction of the storage box and closing between the bag and the storage box. To do.

この発明によれば、収容箱の両側部に配設された閉塞板により、庇と収容箱との間が塞がれて、小動物の侵入を防止し、同時に営巣対策となる。   According to the present invention, the space between the cage and the storage box is closed by the closing plates disposed on both sides of the storage box, preventing the entry of small animals, and at the same time serving as a countermeasure against nesting.

請求項１に記載の発明によれば、収容箱内の雨水の吹込み対策および営巣対策を満足させつつ換気扇を収容して一体化されるため、この一体化された収容箱ごとスイッチギヤの庇下に着脱自在になり、着脱作業が短時間になる。その結果、換気扇の点検時の作業効率が向上し、換気扇の点検時間を短縮して迅速に換気状態に戻すことができる。また、スイッチギヤの外側から庇下に取り付けるため、スイッチギヤ内の充電部に近づかないで作業ができる。その結果、換気扇の取替時に危険な充電部などに接近することなく安全に作業でき、スイッチギヤを運転停止(停電)にする必要がなくなる。さらに、収容箱のサイズを自由に設定できるため、既設スペースを流用できる。よって、スイッチギヤに新たに設置スペースの確保や不要な部品を備える必要がないため、装置全体の設置コストを低減することができる。   According to the first aspect of the present invention, the ventilation fan is accommodated and integrated while satisfying the countermeasures against rainwater blowing and nesting in the storage box. It becomes detachable underneath, and the detaching work becomes short. As a result, work efficiency at the time of inspection of the ventilation fan can be improved, and the inspection time of the ventilation fan can be shortened to quickly return to the ventilation state. Moreover, since it is attached to the armpit from the outside of the switchgear, the work can be performed without approaching the charging part in the switchgear. As a result, when replacing the ventilation fan, it is possible to work safely without approaching a dangerous charging part or the like, and it is not necessary to stop the operation of the switchgear (power failure). Furthermore, since the size of the storage box can be set freely, the existing space can be diverted. Therefore, it is not necessary to secure a new installation space or provide unnecessary parts in the switch gear, so that the installation cost of the entire apparatus can be reduced.

請求項２に記載の発明によれば、収容箱の長手方向の上部両側に閉塞板を備えて庇と収容箱との間を塞ぐため、この間に小動物が侵入することを防止できるとともに、同時に営巣対策が可能となる。   According to the second aspect of the present invention, since the blocking plates are provided on both upper sides of the storage box in the longitudinal direction so as to close the space between the cage and the storage box, it is possible to prevent small animals from entering between them and simultaneously nest Countermeasures are possible.

この発明に係るスイッチギヤ用換気装置を示す外観斜視図である。1 is an external perspective view showing a switchgear ventilation device according to the present invention. 図1のＡ−Ａ線断面を示す断面図である。It is sectional drawing which shows the AA line cross section of FIG. 図1のＢ−Ｂ線断面を示す断面図である。It is sectional drawing which shows the BB line cross section of FIG. 図１のスイッチギヤ用換気装置を取り付けた状態を示す外観斜視図である。It is an external appearance perspective view which shows the state which attached the ventilation apparatus for switch gears of FIG. 図４のＣ−Ｃ線断面を示す断面図である。It is sectional drawing which shows the CC line cross section of FIG.

以下、この発明を図示の実施の形態に基づいて説明する。   The present invention will be described below based on the illustrated embodiments.

図１は、この発明に係るスイッチギヤ用換気装置２を示す外観斜視図である。また、図２は、図1のＡ−Ａ線断面を示す断面図である。また、図３は、図1のＢ−Ｂ線断面を示す断面図である。図１に示すように、このガイドベーンブッシング抜取装置２は、主として、スイッチギヤ１の庇１ａ下（図４参照）に着脱される収容箱１０と、この収容箱１０に収容される換気扇２０、通気板１１、吹き込み防止板１２とを備えることにより構成されている。   FIG. 1 is an external perspective view showing a switchgear ventilation device 2 according to the present invention. 2 is a cross-sectional view showing a cross section taken along line AA of FIG. FIG. 3 is a cross-sectional view showing a cross section taken along line BB of FIG. As shown in FIG. 1, the guide vane bushing extraction device 2 mainly includes a storage box 10 that is attached / detached under the flange 1a of the switch gear 1 (see FIG. 4), and a ventilation fan 20 that is stored in the storage box 10. It is configured by including a ventilation plate 11 and a blow-in prevention plate 12.

収容箱１０は、スイッチギヤ１の庇１ａ下に沿った長手方向に延びる箱型に形成され、この庇１ａ下に対して着脱自在に取り付けられる（図４参照）。すなわち、収容箱１０は、従来技術のように、スイッチギヤ１の開閉扉１ｃごとの前面と背面との換気孔１ｂに各々取り付けられている（図４参照）。そして、この収容箱１０は、換気孔１ｂに合わせて取り付けられ、スイッチギヤ１の両側に平行して延びるように複数配列させて取り付けられている。さらに言及すると、収容箱１０は、開閉扉１ｃの幅に合わせた長さに形成され、開閉扉１ｃの１枚分に対し、この開閉扉１ｃの前面とその裏面とで、２台それぞれ取り付けられている。この収容箱１０は、スイッチギヤ１の庇１ａ下に取り付ける際、図示されていないが雨水などの浸入を防ぐためにスイッチギヤ１との間にゴムなどのパッキンを介在して取り付けられている。   The storage box 10 is formed in a box shape extending in the longitudinal direction along the bottom of the collar 1a of the switch gear 1, and is detachably attached to the bottom of the collar 1a (see FIG. 4). That is, the storage box 10 is attached to the ventilation hole 1b of the front surface and the back surface of each open / close door 1c of the switch gear 1 as in the prior art (see FIG. 4). And this storage box 10 is attached according to the ventilation hole 1b, and is arranged in multiple numbers so that it may extend in parallel with the both sides of the switchgear 1, and is attached. More specifically, the storage box 10 is formed in a length corresponding to the width of the opening / closing door 1c, and two storage boxes 10 are attached to the front and rear surfaces of the opening / closing door 1c, respectively. ing. When the storage box 10 is attached under the flange 1a of the switch gear 1, although not shown in the figure, the storage box 10 is attached to the switch gear 1 with a packing such as rubber interposed therebetween in order to prevent intrusion of rainwater or the like.

また、収容箱１０は、スイッチギヤ１に取り付けられる面の両側にリブ状に突出した一対のリブ１０ａを備えている。このリブ１０ａには、収容箱１０をスイッチギヤ１の換気孔１ｂに設置させた際、箱型の両端をボルト（図示せず）などでネジ止め可能なネジ孔１０ａ−１が開口されている。また、収容箱１０は、スイッチギヤ１の庇１ａ下に設置した際に、長手方向の両側部上面に突出するように配設され、庇１ａとの間の隙間を塞ぐ一対の閉塞板１０ｂを備えている。   In addition, the storage box 10 includes a pair of ribs 10 a that protrude in a rib shape on both sides of a surface that is attached to the switch gear 1. The rib 10a has screw holes 10a-1 that can be screwed at both ends of the box shape with bolts (not shown) when the storage box 10 is installed in the ventilation hole 1b of the switchgear 1. . Further, when the storage box 10 is installed under the flange 1a of the switchgear 1, the storage box 10 is disposed so as to protrude from the upper surface of the both side portions in the longitudinal direction, and a pair of blocking plates 10b that close the gap between the flanges 1a are provided. I have.

このような収容箱１０の内部には、前述した換気扇２０、通気板１１、吹き込み防止板１２がそれぞれ収容されている。換気扇２０は、図１に示すように収容箱１０内に四隅をネジ部２０ａによって固定され、収容箱１０内に一対に配置されている。この換気扇２０は、図２に示すように、収容箱１０内から外部に延びる電源線２１を備えており、この電源線２１を、スイッチギヤ１の換気孔１ｂ近傍に配置されるコネクタ２２（図５参照）に接続されて電源が供給されている。このコネクタ２２は、延長線２２ａ（図５参照）により図示されていないスイッチギヤ１内の電源に接続されている。すなわち、換気扇２０は、収容箱１０の着脱時、電源線２１を換気孔１ｂ近傍のコネクタ２２に抜き差しすることで電源を供給できるため、危険な充電部などに接近することなく安全に作業できる。   Inside the storage box 10, the above-described ventilation fan 20, ventilation plate 11, and blow-in prevention plate 12 are stored. As shown in FIG. 1, the ventilation fan 20 has four corners fixed in the storage box 10 by screw portions 20 a, and is arranged in a pair in the storage box 10. As shown in FIG. 2, the ventilation fan 20 includes a power line 21 extending from the inside of the housing box 10 to the outside. The power line 21 is connected to a connector 22 (see FIG. 2) disposed near the ventilation hole 1b of the switch gear 1. 5) and is supplied with power. The connector 22 is connected to a power source in the switchgear 1 (not shown) by an extension line 22a (see FIG. 5). That is, when the storage box 10 is attached / detached, the ventilation fan 20 can supply power by connecting / disconnecting the power line 21 to / from the connector 22 in the vicinity of the ventilation hole 1b.

また、換気扇２０は、収容箱１０内に２つ配設されており、例えば、１つの換気扇２０が故障した場合でも、残りの換気扇２０で対応できるようになっている。この換気扇２０は、後述する収容箱１０の開口された底面から作業者が回転状態を視認可能に形成されている。よって、換気扇２０には、図３に示すように、回転する複数枚の羽根２３のいずれか1枚に、回転状態を視認できるマーク２４が設けられている。   Further, two ventilation fans 20 are provided in the storage box 10, and for example, even if one ventilation fan 20 breaks down, the remaining ventilation fans 20 can cope with it. This ventilation fan 20 is formed so that an operator can visually recognize the rotation state from the opened bottom surface of the storage box 10 described later. Therefore, as shown in FIG. 3, the ventilation fan 20 is provided with a mark 24 that can visually recognize the rotation state on any one of the rotating blades 23.

そして、収容箱１０は、図３に示した換気扇２０の設置面と直交する底面に、前述した開口する開口面１０ｃが形成され、この開口面１０ｃに底板として配設される通気板１１が取り付けられている。この通気板１１は、鳥などの小動物の侵入が不可能な大きさの通気孔１１ａを形成しており、営巣対策の役割をするとともに、内部の状態を通気孔１１ａから視認できるようになっている。   The storage box 10 has the opening surface 10c that opens as described above formed on the bottom surface orthogonal to the installation surface of the ventilation fan 20 shown in FIG. 3, and the ventilation plate 11 disposed as a bottom plate is attached to the opening surface 10c. It has been. The ventilation plate 11 forms a ventilation hole 11a having a size that prevents entry of a small animal such as a bird. The ventilation plate 11 serves as a countermeasure against nesting, and the internal state can be viewed from the ventilation hole 11a. Yes.

さらに、収容箱１０には、図２に示した箱内で換気扇２０と通気板１１との間に配設される吹き込み防止板１２を備えている。この吹き込み防止板１２は、換気扇２０と通気板１１との間を所定の角度で傾斜させて通気状態を維持して区画するように取り付けられ、底部の開口面１０ｃから吹き込まれる外気によって換気扇２０が止まらないように吹き込みを防止している。詳しくは、吹き込み防止板１２は、収容箱１０の長手方向に延びる薄板状に形成され、図１に示した収容箱１０内の換気扇２０下方の底面に一端がネジ止めなどにより固定され、この底面から上方に傾斜しながら通気板１１側に延びている。そして、吹き込み防止板１２は、図２に示した換気扇２０の下方から延びた遊端と、収容箱１０の内壁と、の間に一定の隙間ができるように配置し、空気が換気扇２０から通気板１１まで通気可能に配置されている。これにより吹き込み防止板１２は、開口面１０ｃからの外気の吹き込みを防止するとともに、換気扇２０から吸気された空気を図２の矢印で示した方向に誘導させて開口面１０ｃから排出することができる。   Furthermore, the storage box 10 includes a blow prevention plate 12 disposed between the ventilation fan 20 and the ventilation plate 11 in the box shown in FIG. The blow-in prevention plate 12 is attached so as to incline between the ventilation fan 20 and the ventilation plate 11 at a predetermined angle to maintain a ventilation state, and the ventilation fan 20 is blown by the outside air blown from the opening surface 10c at the bottom. Blowing is prevented so that it does not stop. Specifically, the blowing prevention plate 12 is formed in a thin plate shape extending in the longitudinal direction of the storage box 10, and one end thereof is fixed to the bottom surface of the storage box 10 shown in FIG. It extends toward the ventilation plate 11 while tilting upward from the bottom. The blowing prevention plate 12 is arranged so that a certain gap is formed between the free end extending from the lower side of the ventilation fan 20 shown in FIG. 2 and the inner wall of the storage box 10, and air is vented from the ventilation fan 20. It arrange | positions so that ventilation to the board 11 is possible. Accordingly, the blow-in prevention plate 12 can prevent the outside air from being blown from the opening surface 10c, and can guide the air sucked from the ventilation fan 20 in the direction indicated by the arrow in FIG. 2 to be discharged from the opening surface 10c. .

また、吹き込み防止板１２は、アクリルなどの透明な材質からなり、前述した作業者が開口面１０ｃから換気扇２０の羽根２３に貼り付けたマーク２３（図３参照）を視認できるようになっている。すなわち、吹き込み防止板１２は、換気扇２０からの空気の排気と外気の吹き込みとを同時に可能とするとともに、この防止板を透明に形成することで、換気扇２０のマーク２３による回転状態の確認を可能としている。この際、吹き込み防止板１２は、収容箱１０に傾斜させて配置するため、前述した作業者が視認する際に傾斜によって光の反射などにより見にくくならない角度になるように配置されている。   Further, the blow-in prevention plate 12 is made of a transparent material such as acrylic so that the above-described operator can visually recognize the mark 23 (see FIG. 3) attached to the blade 23 of the ventilation fan 20 from the opening surface 10c. . That is, the blow-in prevention plate 12 enables the exhaust of air from the ventilation fan 20 and the blow-in of outside air at the same time, and the rotation state by the mark 23 of the ventilation fan 20 can be confirmed by forming this prevention plate transparently. It is said. At this time, since the blowing prevention plate 12 is disposed to be inclined in the storage box 10, the blowing prevention plate 12 is disposed at an angle that does not become difficult to see due to light reflection or the like due to the inclination when the worker described above visually recognizes.

次に、図４および５を参照して、このようなスイッチギヤ用換気装置２をスイッチギヤ１の庇１ａ下に取り付ける動作について詳しく説明する。図４は、図１のスイッチギヤ用換気装置２を取り付けた状態を示す外観斜視図である。また、図５は、図４のＣ−Ｃ線断面を示す断面図である。まず、図１に示したスイッチギヤ用換気装置２は、図４に示すように、スイッチギヤ１の開閉扉１ｃ側とその裏側とで何台配置されるかを確認し、所望の台数をスイッチギヤ１の近傍まで搬送する。   Next, with reference to FIGS. 4 and 5, the operation of mounting such a switchgear ventilation device 2 under the heel 1a of the switchgear 1 will be described in detail. FIG. 4 is an external perspective view showing a state in which the switchgear ventilation device 2 of FIG. 1 is attached. FIG. 5 is a cross-sectional view taken along the line CC of FIG. First, as shown in FIG. 4, the switchgear ventilation device 2 shown in FIG. 1 confirms how many switchgears 1 are arranged on the door 1c side and the back side of the switchgear 1, and switches the desired number of switches. Transport to the vicinity of the gear 1.

そして、スイッチギヤ１には、作業員が脚立などを用いて換気孔１ｂに合わせて、それぞれスイッチギヤ用換気装置２を位置合わせして取付けられる。この際、スイッチギヤ１と収容箱１０との間に、図示されていないパッキンを介在させて取り付けられることで、雨水などの進入を防止することが好ましい。そして、スイッチギヤ用換気装置２は、図１の収容箱１０のリブ１０ａに開口されたネジ孔１０ａ−１にボルトを挿入し、スイッチギヤ１側の外壁に締結させることで固定される。   Then, the switchgear 1 is attached to the switchgear 1 by aligning the switchgear ventilation device 2 in accordance with the ventilation hole 1b using a stepladder or the like. At this time, it is preferable to prevent entry of rainwater or the like by attaching a packing (not shown) between the switch gear 1 and the storage box 10. The switchgear ventilation device 2 is fixed by inserting bolts into the screw holes 10a-1 opened in the ribs 10a of the storage box 10 in FIG. 1 and fastening them to the outer wall on the switchgear 1 side.

また、スイッチギヤ１内では、図５に示すように、収容箱１０内に配設されたコネクタ２２に、電源線２１を接続することで、換気扇２０に電源が供給される。すなわち、換気扇２０は、庇１ａ下で収容箱１０を着脱する際、スイッチギヤ１内の充電部に接近することなく、電源線２1をコネクタ２２に接続または切離しするだけで、着脱作業を安全に実行できる。   Further, in the switch gear 1, as shown in FIG. 5, power is supplied to the ventilating fan 20 by connecting a power line 21 to a connector 22 disposed in the storage box 10. In other words, the ventilation fan 20 can be safely attached / detached by simply connecting or disconnecting the power line 21 to / from the connector 22 without approaching the charging part in the switchgear 1 when attaching / detaching the storage box 10 under the cage 1a. Can be executed.

このように、庇１ａ下に収容箱１０を取り付けて電源線２１をコネクタ２２に接続することで、換気扇２０が駆動して、図５の矢印のようにスイッチギヤ１内で温度が上昇した空気を外部に排出することができる。この際、収容箱１０内に開口面１０ｃから外気が吹き込んできた場合、図５に示した収容箱１０内の吹き込み防止板１２に外気が当たり、傾斜に沿って吹き込み防止板１２遊端の隙間から換気扇２０側に流入しようとするが、図５に示した矢印方向の排出される空気と当接してお互いに相殺される。したがって、換気扇２０に開口面１０ｃから吹き込まれた外気が流入して、換気扇２０の羽根２３を止めてしまうことを防止することができる。また、吹き込み防止板１２はアクリルなどの透明な材質から形成されているため、作業者が庇１ａの下方から換気扇２０の回転状態（マーク２４）を確認でき、この回転状態が確認されることで取り付けが完了する。   In this way, by attaching the storage box 10 under the cage 1a and connecting the power line 21 to the connector 22, the ventilation fan 20 is driven, and the air whose temperature has increased in the switchgear 1 as shown by the arrow in FIG. Can be discharged to the outside. At this time, when outside air has blown into the storage box 10 from the opening surface 10c, the outside air hits the blow prevention plate 12 in the storage box 10 shown in FIG. 5, and the clearance between the free end of the blow prevention plate 12 along the inclination. Although it is going to flow into the ventilation fan 20 side from, it will contact | abut with the air discharged | emitted by the arrow direction shown in FIG. Accordingly, it is possible to prevent the outside air blown from the opening surface 10c from flowing into the ventilation fan 20 and stopping the blades 23 of the ventilation fan 20. Moreover, since the blowing prevention board 12 is formed from transparent materials, such as an acryl, the operator can confirm the rotation state (mark 24) of the ventilation fan 20 from the downward direction of the ridge 1a, and this rotation state is confirmed. Installation is complete.

その後、上記取り付け作業を繰り返して、スイッチギヤ１の庇１ａ下の全てにスイッチギヤ用換気装置２を取り付けることで、全ての取り付けが完了する。   Thereafter, the above installation operation is repeated, and the switchgear ventilation device 2 is attached to all of the switchgear 1 below the flange 1a, whereby all the installations are completed.

以上のように、このスイッチギヤ用換気装置２によれば、収容箱１０内の雨水の吹込み対策および営巣対策を満足させつつ換気扇を収容して一体化されるため、この一体化された収容箱１０ごとスイッチギヤ１の庇１ａ下に着脱自在になり、着脱作業が短時間になる。その結果、換気扇２０の点検時の作業効率が向上し、換気扇２０の点検時間を短縮して迅速に換気状態に戻すことができる。また、スイッチギヤ１の外側から庇１ａ下に取り付けるため、スイッチギヤ１内の充電部に近づかないで作業ができる。その結果、換気扇２０の取替時に危険な充電部などに接近することなく安全に作業でき、スイッチギヤ１を運転停止(停電)にする必要もなくなる。さらに、収容箱１０のサイズを自由に設定できるため、既設スペースを流用できる。よって、スイッチギヤ１に新たに設置スペースの確保や不要な部品を備える必要がないため、装置全体の設置コストを低減することができる。   As described above, according to the switchgear ventilation device 2, the ventilation fan is accommodated and integrated while satisfying the countermeasures against blowing rainwater and the countermeasures against nesting in the storage box 10, and therefore, the integrated accommodation. The entire box 10 can be attached and detached under the collar 1a of the switchgear 1 so that the attaching and detaching work is shortened. As a result, the work efficiency at the time of inspection of the ventilation fan 20 is improved, and the inspection time of the ventilation fan 20 can be shortened to quickly return to the ventilation state. Moreover, since it attaches from the outer side of the switchgear 1 to the bottom of the collar 1a, it can work without approaching the charging part in the switchgear 1. As a result, when the ventilation fan 20 is replaced, it is possible to work safely without approaching a dangerous charging part or the like, and it is not necessary to stop the operation of the switchgear 1 (power failure). Furthermore, since the size of the storage box 10 can be set freely, the existing space can be diverted. Therefore, it is not necessary to newly secure an installation space or to provide unnecessary parts in the switchgear 1, so that the installation cost of the entire apparatus can be reduced.

また、スイッチギヤ用換気装置２によれば、収容箱１０の長手方向の上部両側に閉塞板１０ｂを備えて庇１ａと収容箱１０との間を塞ぐため、この間に小動物が侵入することを防止でき、同時に営巣対策が可能となる。   In addition, according to the switchgear ventilation device 2, since the closing plates 10b are provided on both upper sides of the storage box 10 in the longitudinal direction so as to close the space between the cage 1a and the storage box 10, small animals can be prevented from entering between them. At the same time, it becomes possible to take measures against nesting.

さらに、スイッチギヤ用換気装置２によれば、吹き込み防止板１２が透明な材質から形成されて作業者が庇１ａの下方から換気扇２０の羽根２３のマーク２４により回転状態を確認できるため、検査効率が向上し確実に換気扇２０の回転状態を把握することができる。その結果、換気扇２０の故障によりスイッチギヤ１の内部温度が上昇し、内部機器に影響を与えることを確実に防止することができる。   Furthermore, according to the switchgear ventilation device 2, since the blow-in prevention plate 12 is formed of a transparent material, the operator can confirm the rotation state from the lower side of the ridge 1a by the mark 24 of the blade 23 of the ventilation fan 20, so that the inspection efficiency Thus, the rotation state of the ventilation fan 20 can be grasped with certainty. As a result, it is possible to reliably prevent the internal temperature of the switch gear 1 from rising due to the failure of the ventilation fan 20 and affecting the internal equipment.

以上、この発明の実施の形態について説明したが、具体的な構成は、上記の実施の形態に限られるものではなく、この発明の要旨を逸脱しない範囲の設計の変更等があっても、この発明に含まれる。例えば、上記の実施の形態では、収納箱１０内に換気扇２０を２個一対に配置した構造について説明しているが、これに限定されず、２個以上配置して換気扇２０が複数故障しても対応可能に構成してもよい。   Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, in the above embodiment, the structure in which two ventilation fans 20 are arranged in pairs in the storage box 10 is described. However, the present invention is not limited to this. May be configured to be compatible.

１ スイッチギヤ
１ａ 庇
１ｂ 換気孔
１ｃ 開閉扉
２ スイッチギヤ用換気装置
１０ 収容箱
１０ａ リブ
１０ａ−１ ネジ孔
１０ｂ 閉塞板
１０ｃ 開口面
１１ 通気板
１１ａ 通気孔
１２ 吹き込み防止板
２０ 換気扇
２０ａ ネジ部
２１ 電源線
２２ コネクタ
２２ａ 延長線
２３ 羽根
２４ マーク DESCRIPTION OF SYMBOLS 1 Switchgear 1a 庇 1b Ventilation hole 1c Open / close door 2 Switchgear ventilation device 10 Housing box 10a Rib 10a-1 Screw hole 10b Blocking plate 10c Opening surface 11 Ventilation plate 11a Venting hole 12 Blowing prevention plate 20 Ventilation fan 20a Screw part 21 Power supply Line 22 Connector 22a Extension line 23 Blade 24 Mark

Claims (2)

スイッチギヤの庇下に配設されるスイッチギヤ用換気装置であって、
前記庇に沿って延びる箱型で、前記庇下に着脱自在に取り付けられる収容箱と、
前記収容箱内の長手方向に複数配設され、前記スイッチギヤ内の空気を喚起する換気扇と、
前記収容箱の底板として配設され、小動物の侵入が不可能な大きさの通気孔が形成された通気板と、
前記収容箱内で前記換気扇と通気板との間に配設され、雨水が前記換気扇側に吹き込むのを防止する吹き込み防止板と、
を備えることを特徴とするスイッチギヤ用換気装置。 A switch gear ventilation device disposed under the arm of the switch gear,
A box that extends along the saddle, and a storage box that is detachably attached to the armpit;
A plurality of fans arranged in the longitudinal direction in the storage box, and a ventilation fan that wakes up the air in the switch gear;
A vent plate provided as a bottom plate of the storage box, and having a vent hole of a size incapable of entering small animals;
A blow prevention plate disposed between the ventilation fan and the ventilation plate in the storage box, and preventing rainwater from blowing into the ventilation fan side;
A switchgear ventilation device characterized by comprising: 前記収容箱の長手方向の両側部に配設され、前記庇と収容箱の間を塞ぐ閉塞板を備える、ことを特徴とする請求項１に記載のスイッチギヤ用換気装置。   2. The switchgear ventilation device according to claim 1, further comprising a blocking plate disposed on both sides in the longitudinal direction of the storage box and blocking between the bag and the storage box.
JP2012060367A 2012-03-16 2012-03-16 Ventilation device for switchgear Pending JP2013198205A (en)

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CN111864606A (en) * 2020-09-01 2020-10-30 山东九合电气有限公司 Waterproof type intelligent box-type substation
CN112271596A (en) * 2020-11-10 2021-01-26 国网山东省电力公司德州供电公司 Dustproof power equipment box
CN114510090A (en) * 2022-02-22 2022-05-17 陈鸿飞 Box-type transformer temperature control system

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JP2016208679A (en) * 2015-04-23 2016-12-08 日新電機株式会社 Ventilator for switchgear
CN106655289A (en) * 2016-11-10 2017-05-10 南京铁道职业技术学院 SCADA-based anti-impurity power regulation system and method
CN106410864A (en) * 2016-11-10 2017-02-15 南京铁道职业技术学院 SCADA-based firm type power adjustment system and method thereof
CN106410865A (en) * 2016-11-10 2017-02-15 南京铁道职业技术学院 Embedded SCADA-based power regulation system and method thereof
CN106451574A (en) * 2016-11-10 2017-02-22 南京铁道职业技术学院 SCADA-based power adjusting system with connecting piece, and method of system
CN106602614A (en) * 2016-11-10 2017-04-26 南京铁道职业技术学院 Moisture-proof SCADA-based power adjusting system and method thereof
CN106602594A (en) * 2016-11-10 2017-04-26 南京铁道职业技术学院 Stable-positioning power adjustment system and method based on SCADA
CN106655288A (en) * 2016-11-10 2017-05-10 南京铁道职业技术学院 SCADA-based stable power regulation system and method thereof
CN106410863A (en) * 2016-11-10 2017-02-15 南京铁道职业技术学院 Power adjustment system and method thereof based on SCADA
CN106505430A (en) * 2016-12-09 2017-03-15 徐超 A kind of box-type transformer shell of water-inlet-proof
JP2018174254A (en) * 2017-03-31 2018-11-08 富士電機株式会社 Outdoor board
JP6269882B1 (en) * 2017-03-31 2018-01-31 富士電機株式会社 Outdoor board
CN107394635A (en) * 2017-08-16 2017-11-24 安徽长龙电气集团有限公司 A kind of efficient dustproof type power distribution cabinet
CN107482571A (en) * 2017-09-14 2017-12-15 合肥虹光电气股份有限公司 A kind of Outdoor Terminal Case with good ventilative base
CN108346987A (en) * 2018-05-14 2018-07-31 苏州天鸿电子有限公司 A kind of heat-dissipation switch cabinet
JP2019212853A (en) * 2018-06-08 2019-12-12 日東工業株式会社 Electrical apparatus housing cabinet
JP7118534B2 (en) 2018-06-08 2022-08-16 日東工業株式会社 Electrical equipment storage cabinet
CN111864606A (en) * 2020-09-01 2020-10-30 山东九合电气有限公司 Waterproof type intelligent box-type substation
CN112271596A (en) * 2020-11-10 2021-01-26 国网山东省电力公司德州供电公司 Dustproof power equipment box
CN114510090A (en) * 2022-02-22 2022-05-17 陈鸿飞 Box-type transformer temperature control system

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