JP5287764B2 - Cooling method and cooling equipment for electric control panel - Google Patents

Cooling method and cooling equipment for electric control panel Download PDF

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JP5287764B2
JP5287764B2 JP2010039238A JP2010039238A JP5287764B2 JP 5287764 B2 JP5287764 B2 JP 5287764B2 JP 2010039238 A JP2010039238 A JP 2010039238A JP 2010039238 A JP2010039238 A JP 2010039238A JP 5287764 B2 JP5287764 B2 JP 5287764B2
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control panel
cold air
electric control
discharge duct
air discharge
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JP2011176135A (en
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和利 石井
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Nippon Steel Corp
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Nippon Steel and Sumitomo Metal Corp
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Description

本発明は、電算機室等の電気制御盤の内部に低温空気を流して冷却する電気制御盤の冷却方法に関する。   The present invention relates to a method for cooling an electric control panel in which low-temperature air is allowed to flow inside an electric control panel such as a computer room.

従来、図５に示すように、電気室１内の床上に間隔をおいて並列に配置された電気制御盤列７の前面側出口及び上部出口から排気される暖かい空気（暖気１５ａ）を電気室１に設置した空調機における室内器１７ａから吸い込んで、空調機における室外機により冷却して前記電気室１に低温空気（冷気１４ａ）を戻し、戻された低温空気を電気制御盤列７の背面側入り口から吸い込むようにした電気制御盤の冷却方法が知られている。
図５に示す場合には、電気室内において、暖気１５ａと冷気１４ａが混合されるため、電気制御盤背面側からの冷気１４ａには暖気１５ａが混合されるため、電気制御盤の冷却効率が低いという問題がある。 Conventionally, as shown in FIG. 5, warm air (warm air 15 a) exhausted from the front-side outlet and the upper outlet of the electric control panel row 7 arranged in parallel on the floor in the electric chamber 1 is arranged in the electric chamber. 1 is sucked from the indoor unit 17a in the air conditioner installed in 1 and cooled by the outdoor unit in the air conditioner to return low-temperature air (cold air 14a) to the electric chamber 1, and the returned low-temperature air is returned to the back of the electric control panel row 7. There is known a method of cooling an electric control panel that sucks in from a side entrance.
In the case shown in FIG. 5, the warm air 15a and the cool air 14a are mixed in the electric room. Therefore, the cool air 14a from the back side of the electric control panel is mixed with the warm air 15a, and the cooling efficiency of the electric control panel is low. There is a problem.

図５に示す技術の冷却効率を改善する技術として、空調機の冷風吹出口から吹き出される低温空気を電気室内の床ピット６に流し、電気盤の下部及び上部の開口部を利用して電気盤内部に低温空気を通すようにした冷却方法がある（例えば、特許文献１参照）。   As a technique for improving the cooling efficiency of the technique shown in FIG. 5, low-temperature air blown from a cold air outlet of an air conditioner is caused to flow into the floor pit 6 in the electric room, and electricity is utilized using the lower and upper openings of the electric panel. There is a cooling method in which low-temperature air is passed through the inside of the panel (for example, see Patent Document 1).

また、電気室における制御盤列が複数ある場合で、制御盤列の吸気面が前面に、排気面が背面又は上面に配置されている形態の制御盤列では、間隔をおいて対向する制御盤列の吸気面を対向させて排気面を反対の背中側又は上に側に配置する形態とし、天井にピンポイントに設けた空調吹き出し口から冷気を吹き出すことも知られている（例えば、特許文献２参照）。   Further, in the case where there are a plurality of control panel rows in the electrical room, the control panel rows in which the intake surface of the control panel row is arranged on the front surface and the exhaust surface is arranged on the back surface or the upper surface, the control panels facing each other at intervals It is also known that the exhaust surfaces are arranged on the opposite back side or upper side with the air intake surfaces of the rows facing each other, and cold air is blown out from an air conditioning outlet provided at a pinpoint on the ceiling (for example, Patent Documents) 2).

特開２０００−１７９９２６号公報JP 2000-179926 A 特開２００９−７１０８４号公報JP 2009-71084 A

前記各従来の場合には、電気室内において冷気と暖気とが確実に分離されないで、混合したり、仕切り板の断熱効果が十分でないため、或いは、排気口を室内側壁又は天井部にピンポイントに設けて、冷気を排気するので、室内の暖気１５ａと１４ａとが確実に分離されていないため、冷却効率が低くなるという問題がある。
また、図６に示すように、床下に配線ピットがある場合で前記配線ピットを通風路として用いることが可能な場合には、電気室１の床５上に、間隔をおいて対向して制御盤列７の吸気面８側の上方に、電気制御盤列７に沿って水平に帯状の横仕切板２５を設け、横仕切板２５の巾方向両側に、冷気吹き出し口（図示を省略した）を設けると共に、冷気を床下から流して、各対向する制御盤列７の前面側の冷気吸気面８から吸気し、制御盤列７の背面側又は上面側の排気面９から暖気１５ａを排気して、図示省略の室内排気口から室外空調機を介して配線ピットに冷気を供給する技術も考えられるが、配線ピットを通気路として用いることができない場合には、図６に示す形態の冷却方法を採用することはできない。
本発明は、電気室内の電気制御盤を効率よく冷却可能な電気制御盤の冷却方法及び冷却設備を提供することを目的とする。 In each of the above conventional cases, cold air and warm air are not reliably separated in the electric room, so that they are mixed or the heat insulating effect of the partition plate is not sufficient, or the exhaust port is pinpointed on the indoor side wall or ceiling part. Since the cool air is provided and exhausted, the indoor warm air 15a and 14a are not reliably separated, and there is a problem that the cooling efficiency is lowered.
In addition, as shown in FIG. 6, when there is a wiring pit below the floor and the wiring pit can be used as a ventilation path, control is performed on the floor 5 of the electrical chamber 1 to face each other at an interval. A strip-like horizontal partition plate 25 is provided horizontally along the electric control panel row 7 above the intake surface 8 side of the panel row 7, and cold air outlets (not shown) are provided on both sides in the width direction of the horizontal partition plate 25. In addition, the cool air is allowed to flow from below the floor, the air is sucked in from the cool air intake surface 8 on the front side of each opposing control panel row 7, and the warm air 15a is exhausted from the exhaust surface 9 on the back side or upper surface side of the control panel row 7. A technique for supplying cold air to the wiring pit from an indoor exhaust port (not shown) via an outdoor air conditioner is also conceivable. However, when the wiring pit cannot be used as an air passage, a cooling method of the form shown in FIG. Cannot be adopted.
It is an object of the present invention to provide an electric control panel cooling method and cooling equipment that can efficiently cool an electric control panel in an electric room.

第１発明の電気制御盤の冷却方法では、電気室内の床上に間隔をおいて正面側に冷気吸気面を有する電気制御盤列が並列してかつ冷気吸気面が対向するように設けられた電気制御盤の冷却方法において、電気制御盤列の冷気吸気面側の上方に、冷気吐き出しダクトが電気制御盤列に沿って延長するように設けられて、前記冷気吐き出しダクトの下側に設けた冷気吐き出し口から冷気を吐き出して冷気領域を形成し、その冷気領域の冷気を前記冷気吸気面側から吸気するようにし、前記冷気吐き出しダクトの外側面は、断熱被覆されていると共に前記冷気吐き出しダクトの両側壁下部と電気制御盤列の前面上部とを仕切り部により接続して、電気制御盤列前面側間の冷気領域と電気制御盤列背面側の暖気領域を遮断するようにしたことを特徴とする。
第２発明では、第１発明の電気制御盤の冷却方法において、天井部から冷気吐き出しダクトを離して設けて、各電気制御盤列の背面側の暖気相互の対流を可能にしたことを特徴とする。
第３発明では、第１発明又は第２発明の電気制御盤の冷却方法において、外壁及び天井屋根に断熱層を設けて、電気制御盤の冷却効率を向上させるようにしたことを特徴とする。
第４発明では、第１発明〜第３発明の電気制御盤の冷却方法において、電気室の暖気吸気口と冷気吐き出し口と室外に設けた空調機における室外機とを、それぞれ暖気送気路と冷気送気路を介して接続していることを特徴とする。
第５発明では、第１発明〜第４発明の電気制御盤の冷却方法において、電気制御盤が３列以上の奇数列設けられている場合に、対とならない電気制御盤の冷気吸気面に間隔をおいて対向するように仕切り壁を設け、前記対とならない電気制御盤列の冷気吸気面側と仕切り壁との間の上方に、冷気吐き出しダクトが電気制御盤列沿って延長するように設けられ、前記冷気吐き出しダクトの下側に設けた冷気吐き出し口から冷気を吐き出して冷気領域を形成し、その冷気領域の冷気を前記冷気吸気面側から吸気するようにしたことを特徴とする。
第６発明では、電気室内の床上に間隔をおいて正面側に冷気吸気面を有する電気制御盤列が並列してかつ冷気吸気面が対向するように設けられた電気制御盤の冷却設備において、電気制御盤列の冷気吸気面側の上方に、冷気吐き出しダクトが電気制御盤列に沿って延長するように設け、前記冷気吐き出しダクトの下側に沿って冷気吐き出し口を設け、前記冷気吐き出しダクトの外側面は、断熱被覆されていると共に前記冷気吐き出しダクトの両側壁下部と電気制御盤列の前面上部とを仕切り部により接続して、電気制御盤列前面側間の冷気領域と電気制御盤列背面側の暖気領域が遮断されていたことを特徴とする。
第７発明の電気制御盤の冷却設備では、第６発明の電気制御盤の冷却設備において、天井部から冷気吐き出しダクトを離して設け、冷気吐き出しダクトの上側と天井部との間に、通気路を設け、各電気制御盤列の背面側の暖気相互の対流を可能にしたことを特徴とする。
第８発明では、第６発明又は第７発明の電気制御盤の冷却設備において、外壁及び天井屋根に断熱層が設けられていることを特徴とする。
第９発明では、第６発明〜第８発明の電気制御盤の冷却設備において、電気室の暖気吸気口と冷気吐き出し口と室外に設けた空調機における室外機とを、それ
ぞれ暖気送気路と冷気送気路を介して接続していることを特徴とする。
第１０発明では、第６発明〜第９発明のいずれかの電気制御盤の冷却設備において、電気制御盤が３列以上の奇数列設けられている場合に、対とならない奇数列目の電気制御盤の冷気吸気面に間隔をおいて対向するように仕切り壁を設け、前記対とならない奇数列目の電気制御盤列の冷気吸気面側と仕切り壁との間の上方に、冷気吐き出しダクトが電気制御盤列に沿って延長するように設けられ、前記冷気吐き出しダクトの下側に設けた冷気吐き出し口から冷気を吐き出して冷気領域が形成され、その冷気領域の冷気が前記冷気吸気面側から吸気されるようにしたことを特徴とする。 In the electric control panel cooling method according to the first aspect of the present invention, the electric control panel rows having the cold air intake surface on the front side with a space on the floor in the electric room are arranged in parallel and the cold air intake surface is opposed to each other. In the cooling method of the control panel, a cold air discharge duct is provided above the cold air intake surface side of the electric control panel row so as to extend along the electric control panel row, and the cold air provided below the cold air discharge duct. Cold air is discharged from the discharge port to form a cold air region, and the cold air in the cold air region is sucked from the cold air intake surface side, and the outer surface of the cold air discharge duct is thermally insulated and the cold air discharge duct a front upper portion of the side walls to bottom electric control panel columns connected by a partition portion, and characterized in that so as to block the warm air area of cold region and the electric control panel column rear side between the electrical control panel column front side That.
According to a second aspect of the present invention, in the method for cooling an electric control panel according to the first aspect of the present invention, a cool air discharge duct is provided apart from the ceiling to enable convection between warm airs on the back side of each electric control panel row. To do.
According to a third invention, in the method for cooling an electric control panel according to the first or second invention, a heat insulating layer is provided on the outer wall and the ceiling roof to improve the cooling efficiency of the electric control panel.
According to a fourth aspect of the present invention, in the cooling method for the electric control panel according to the first to third aspects of the present invention, the warm air intake port, the cold air discharge port of the electric room, and the outdoor unit in the air conditioner provided outside are respectively connected to the warm air supply path. It is connected through a cold air supply path.
According to a fifth aspect of the present invention, in the method for cooling an electric control panel according to the first to fourth aspects, when the electric control panel is provided with an odd number of rows of 3 or more, it is spaced from the cold air intake surface of the electric control panel that is not paired A partition wall is provided so as to be opposed to each other, and a cold air discharge duct is provided so as to extend along the electrical control panel row above the cold air intake surface side of the non-paired electric control panel row and the partition wall. The cool air discharge duct provided at the lower side of the cool air discharge duct discharges cool air to form a cool air region, and the cool air in the cold air region is sucked from the cool air intake surface side.
In the sixth aspect of the invention, in the cooling facility for the electric control panel provided such that the electric control panel rows having the cold air intake surface on the front side with a space on the floor in the electric room are arranged in parallel and the cold air intake surface is opposed to each other, A cold air discharge duct is provided above the cold air intake surface side of the electric control panel row so as to extend along the electric control panel row, a cold air discharge port is provided along the lower side of the cold air discharge duct, and the cold air discharge duct is provided . The outer side surface of the air-conditioner is heat-insulated and connects the lower part of both side walls of the cold air discharge duct and the upper part of the front surface of the electric control panel row by a partitioning portion so that the cold air region between the front side of the electric control panel row and the electric control panel The warm air region on the rear side of the row is cut off .
In the electrical control panel cooling facility according to a seventh aspect of the present invention, in the electrical control panel cooling facility according to the sixth aspect of the present invention, the cold air exhaust duct is provided separately from the ceiling portion, and the air passage is provided between the upper side of the cold air exhaust duct and the ceiling portion. And convection between warm airs on the back side of each electric control panel row is enabled.
According to an eighth aspect of the invention, in the cooling equipment for the electric control panel according to the sixth aspect or the seventh aspect , a heat insulating layer is provided on the outer wall and the ceiling roof.
In the ninth invention, in the cooling equipment for the electric control panel according to the sixth to eighth inventions, the warm air intake port, the cool air discharge port of the electric room, and the outdoor unit in the air conditioner provided outside are respectively connected to the warm air supply path. It is connected through a cold air supply path.
In the tenth aspect of the invention, in the cooling equipment for the electric control panel according to any one of the sixth to ninth aspects, when the electric control panel is provided with an odd number of three or more rows, the electric control of the odd-numbered columns that are not paired A partition wall is provided so as to face the cold air intake surface of the panel with a space therebetween, and a cold air discharge duct is disposed above the partition between the cold air intake surface side and the partition wall of the odd-numbered odd-numbered electric control panel row. A cold air region is formed by discharging cold air from a cold air discharge port provided on the lower side of the cold air discharge duct, and extending from the cold air discharge duct. characterized in that the so that the intake air.

本発明によると、対向する電気制御盤列の冷気吸気面側間の上方又は冷気吸気面と仕切り壁間の上方に、冷気吐き出しダクトが電気制御盤列に沿って延長するように設けられ、冷気吐き出しダクトの下側に沿って設けた冷気吐き出し口から吐き出すようにしたので、電気制御盤列の長手方向に沿って確実に冷気を送って、電気制御盤を確実に冷却することができ、また、断熱被覆された冷気吐き出しダクトの両側壁下部と電気制御盤列の前面上部とを仕切り部により接続して、電気制御盤列前面側間の冷気領域と電気制御盤列背面側の暖気領域を遮断するようにしたので、冷気と暖気が確実に分離されて供給されて、冷気による電気制御盤の冷却効率を高めることができる。
また、天井部から冷気吐き出しダクトを離して設けて、各電気制御盤列の背面側の暖気相互の対流を可能にしたので、暖気領域間の温度差が大きくなるのを抑制することができる。
また、外壁及び天井屋根に断熱層を設けているので、夏季時等における電気制御盤の冷却効率を向上させることができる。
また、電気室の暖気吸気口と冷気吐き出し口と室外に設けた空調機における室外機とを、それぞれ暖気送気路と冷気送気路を介して接続しているので、インバーターエアコン等、熱交換器を備えた空調機により冷却することができる。 According to the present invention, the cold air discharge duct is provided so as to extend along the electric control panel row above the cold air intake surface side of the opposing electric control panel row or above the cold air suction surface and the partition wall. Since the air is discharged from the cold air discharge port provided along the lower side of the discharge duct, it is possible to reliably cool the electric control panel by sending cool air along the longitudinal direction of the electric control panel row. The lower part of both side walls of the cool air discharge duct covered with heat insulation and the upper part of the front of the electric control panel row are connected by a partition part, so that the cold air region between the front side of the electric control panel row and the warm air region on the rear side of the electric control panel row are provided. Since it shuts off, cold air and warm air are reliably separated and supplied, and the cooling efficiency of the electric control panel by cold air can be enhanced.
In addition, since the cool air discharge duct is provided apart from the ceiling portion to allow convection between warm airs on the back side of each electric control panel row, it is possible to suppress an increase in temperature difference between the warm air regions.
In addition, since the heat insulating layer is provided on the outer wall and the ceiling roof, the cooling efficiency of the electric control panel can be improved in summer and the like.
In addition, since the warm air intake and cold air outlets of the electrical room and the outdoor unit in the air conditioner provided outside are connected via the warm air supply path and the cold air supply path, respectively, heat exchange such as inverter air conditioners It can be cooled by an air conditioner equipped with a vessel.

本発明の一実施形態の電気制御盤の冷却設備を示すものであって、電気制御盤を冷却している状態を示す縦断正面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a cooling facility for an electric control panel according to an embodiment of the present invention, and is a longitudinal front view showing a state in which the electric control panel is cooled. 図１のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 本発明の他の実施形態の電気制御盤の冷却設備を示すものであって、電気制御盤を冷却している状態を示す縦断正面図である。It is a vertical front view which shows the cooling equipment of the electric control panel of other embodiment of this invention, Comprising: The state which is cooling the electric control panel is shown. 図３のＢ−Ｂ線断面図である。FIG. 4 is a sectional view taken along line BB in FIG. 3. 従来の電気制御盤の冷却設備の第１例の説明図である。It is explanatory drawing of the 1st example of the cooling equipment of the conventional electric control panel. 従来の電気制御盤の冷却設備の第２例の説明図である。It is explanatory drawing of the 2nd example of the cooling equipment of the conventional electric control panel.

次に、本発明を図示の実施形態に基づいて詳細に説明する。     Next, the present invention will be described in detail based on the illustrated embodiment.

図１及び図２には、本発明の第１実施形態の電気制御盤の冷却設備の一実施形態が示されている。   1 and 2 show an embodiment of a cooling facility for an electric control panel according to a first embodiment of the present invention.

先ず、図１及び図２に示されている躯体構造及び設備について簡単に説明すると、電算機室等の電気室１は、その周側部が、断熱性の外壁又は内壁２により囲まれていると共に、上部は断熱性屋根又は断熱性天井部３とされている。   First, the housing structure and equipment shown in FIG. 1 and FIG. 2 will be briefly described. The electric chamber 1 such as a computer room is surrounded by a heat insulating outer wall or inner wall 2 at its peripheral side. At the same time, the upper part is a heat insulating roof or a heat insulating ceiling 3.

床下躯体４上に設けられた床５の下に、配線ピット６が設けられ、床５の上に電気室１が設けられ、電気室１内空気と配線ピット６内空気との循環を期待しない形態とされている。
床５の上には、前後方向に延長するように配置された正面側に冷気吸気面を有する電気制御盤列７が左右方向に間隔をおいて対向するように配置されている。具体的には、電気制御盤列７は、並列に冷気吸気面が対向するように配置されると共に隣り合う対向する電気制御盤列７は、正面側に冷気１４ａを吸い込むための入り口を備えた冷気吸気面８が設けられ、各電気制御盤列７の背面側及び上面側には、それぞれ暖気１５ａを排出するための吐き出し出口を備えた暖気排気面９を備えている。 A wiring pit 6 is provided under the floor 5 provided on the underfloor housing 4, and the electric chamber 1 is provided on the floor 5, so that circulation between the air in the electric chamber 1 and the air in the wiring pit 6 is not expected. It is in the form.
On the floor 5, an electric control panel row 7 having a cold air intake surface on the front side which is arranged to extend in the front-rear direction is arranged so as to be opposed to each other at an interval in the left-right direction. Specifically, the electric control panel row 7 is arranged so that the cold air intake surfaces face each other in parallel, and the adjacent electric control panel row 7 provided with an entrance for sucking the cold air 14a on the front side. A cold air intake surface 8 is provided, and a warm air exhaust surface 9 having a discharge outlet for discharging warm air 15 a is provided on the back side and the top surface side of each electric control panel row 7.

対向する電気制御盤列７の冷気吸気面８側間の上方に、断熱性屋根又は断熱性天井部３から十分離れた下位位置に、冷気吐き出しダクト１０が電気制御盤列７に沿って延長するように設けられ、前記冷気吐き出しダクト１０の巾寸法は、ほぼ電気制御盤列７間の寸法とされ、各冷気吐き出しダクト１０の外側面は、断熱被覆されている。   A cold air discharge duct 10 extends along the electric control panel row 7 at a lower position sufficiently away from the heat insulating roof or the heat insulating ceiling portion 3 above the cold air intake surface 8 side of the opposing electric control panel row 7. The width of the cold air discharge duct 10 is approximately the same between the electric control panel rows 7, and the outer surface of each cold air discharge duct 10 is covered with heat insulation.

各冷気吐き出しダクト１０の下面側に沿って連続して設けた電気制御盤列７の全長に亘る冷気吐き出し口１１から吐き出すようにしている。   It discharges from the cold air discharge port 11 over the entire length of the electric control panel row 7 provided continuously along the lower surface side of each cold air discharge duct 10.

前記冷気吐き出しダクト１０の両断熱側壁１２下部と各電気制御盤列７の前面上部とは、断熱性仕切り板が設けられるか、又は両断熱側壁１２下部の吹き出し口から電気制御盤列７の前面上部に向かって冷気を吹き出してエアーカーテンを形成して、断熱性仕切り板又はエアーカーテンによる仕切り部１３が設けられ、前記仕切り部１３は、前記冷気吐き出しダクト１０の両断熱側壁１２下部と電気制御盤列７の前面上部とを接続するように各電気制御盤列７の全長に亘って設けられ、前記仕切り部１３により、電気制御盤列７前面側間の冷気領域（コールドアイル）１４と電気制御盤列７背面側の暖気領域（ホットアイル）１５を遮断するようにしている。   The lower part of both heat insulating side walls 12 of the cold air discharge duct 10 and the upper part of the front surface of each electric control panel row 7 are provided with heat insulating partition plates, or the front surface of the electric control panel row 7 from the blowout port at the lower part of both heat insulating side walls 12. Cold air is blown out toward the upper portion to form an air curtain, and a partition portion 13 is formed by a heat insulating partition plate or an air curtain. The partition portion 13 is electrically controlled with the lower portions of both heat insulating side walls 12 of the cold air discharge duct 10. It is provided over the entire length of each electric control panel row 7 so as to connect the front upper part of the panel row 7, and the partition portion 13 causes a cold air region (cold aisle) 14 between the electric control panel row 7 front side and the electric The warm air region (hot aisle) 15 on the back side of the control panel row 7 is cut off.

また、断熱性屋根又は断熱性天井部３から冷気吐き出しダクト１０を離して設けて、冷気吐き出しダクト１０の上側と断熱性屋根又は断熱性天井部３との間に、通気路１６を設けている。前記通気路１６を設けたことにより、各電気制御盤列７の背面側の暖気相互の気流の変化がある場合あるいは温度差が生じている場合には、これらの暖気流域の空気の対流を可能にしている。電気制御盤列７を備えた建造物は、季節あるいは日照により太陽光２２等を受ける側と太陽光等を受けない側では、温度差（外部負荷）が大きいため、前記のように、通気路１６を設けたことにより、各電気制御盤列７の背面側の暖気相互の対流を可能にして暖気領域１５間の温度差が大きくなるのを抑制するようにしている。
また、外壁及び天井屋根に断熱層を設けていることで、夏季（又は太陽光を多く受ける昼間）において外気温が高くても、インバーターエアコンからなる空調機１７による電気制御盤７の冷却効率を向上させるようにしている。なお、冬季又は夜間時の外気温が低い時には、前記空調機１７の運転台数を低減するように、適宜温度検知器を設けて、室外機１７ｂ内の熱交換器のモーターをインバーターにより制御している。 Further, the cool air discharge duct 10 is provided away from the heat insulating roof or the heat insulating ceiling portion 3, and the air passage 16 is provided between the upper side of the cold air discharge duct 10 and the heat insulating roof or the heat insulating ceiling portion 3. . By providing the ventilation passage 16, when there is a change in the airflow between the warm airs on the back side of each electric control panel row 7 or when a temperature difference occurs, convection of air in these warm airflow regions is possible. I have to. A building provided with the electric control panel 7 has a large temperature difference (external load) between the side receiving sunlight 22 or the like due to the season or sunshine and the side not receiving sunlight, etc. By providing 16, the back side of each electric control panel row 7 is allowed to convection with each other to suppress the temperature difference between the warm air regions 15 from increasing.
Further, by providing a heat insulating layer on the outer wall and the ceiling roof, the cooling efficiency of the electric control panel 7 by the air conditioner 17 composed of an inverter air conditioner can be improved even in the summer (or in the daytime when much sunlight is received). I try to improve. When the outside air temperature is low in winter or at night, an appropriate temperature detector is provided so as to reduce the number of operating air conditioners 17, and the motor of the heat exchanger in the outdoor unit 17b is controlled by an inverter. Yes.

電気室１の暖気吸気口１８と冷気吐き出しダクト１０の基端側と室外に設けたインバーターエアコンからなる空調機１７の室外機１７とを、それぞれ暖気送気路１９と冷気送気路２０を介して接続している。   The warm air inlet 18 of the electric room 1, the proximal end side of the cool air discharge duct 10, and the outdoor unit 17 of the air conditioner 17 including an inverter air conditioner provided outside are connected via a warm air supply path 19 and a cold air supply path 20, respectively. Connected.

図１及び図２に示す電気制御盤の冷却設備では、床５の下に、配線ピット６が設けられている形態でも、配線ピット６を通風路として用いることができない場合でも、電気制御盤列間に冷気吐き出し口１１から冷気を吐き出して冷気領域１４を確実に形成することができると共に、電気制御盤７の背面又は上面から吐き出される暖気と混合することがないので、確実に電気制御盤７に除湿された冷気を供給して、電気制御盤７を効率よく冷却することができる。   In the cooling system for the electric control panel shown in FIGS. 1 and 2, even if the wiring pit 6 is provided below the floor 5 or the wiring pit 6 cannot be used as a ventilation path, the electric control panel row In the meantime, the cold air can be discharged from the cold air discharge port 11 so that the cold air region 14 can be reliably formed, and since it does not mix with the warm air discharged from the back surface or the upper surface of the electric control panel 7, the electric control panel 7 can be surely connected. The dehumidified cold air is supplied to the electric control panel 7 so that it can be efficiently cooled.

なお、床５が通気可能な場合には、配線ピット６を通気路１６として用いて冷気を電気室１に供給するようにしても一層電気制御盤７の冷却を行うことができるが、配線ピット６内の結露を生じる恐れがあるため、配線ピット６内の結露を防止するためには、床５を通気不能な形態とするとよい。   If the floor 5 can be ventilated, the electric control panel 7 can be further cooled by supplying the cold air to the electric chamber 1 using the wiring pit 6 as the air passage 16. In order to prevent condensation in the wiring pit 6, the floor 5 is preferably configured so as not to allow ventilation.

図３及び図４には、本発明の他の実施形態の電気制御盤の冷却設備で、電気制御盤列７を奇数列設ける場合が示されている。電気制御盤列７を偶数列設ける場合には、前記実施形態のように、２つの電気制御盤列７を１組の電気制御盤列群として、間隔をおいて隣り合う１組の電気制御盤列群の間を暖気領域とすればよいが、３つ又は３つ以上の奇数の電気制御盤列７を配置する場合には、対とならない奇数列目の電気制御盤列７が生じるようになるため、この場合には、図３及び図４に示すように、断熱性の外壁２の内側から離れた位置に、断熱性の間仕切り壁２３を、対とならない奇数列目の電気制御盤列７の冷気吸気面８に間隔をおいて対向するように設けて、最も外側の奇数列目の電気制御盤列７と断熱間仕切り壁２３との間に冷気吐き出し口１１から冷気を吐き出して冷気領域１４とし、その上方に、冷気吐き出しダクト１０と仕切り部１３を設けるようにすればよい。   3 and 4 show a case where an odd number of electric control panel rows 7 are provided in a cooling facility for an electric control panel according to another embodiment of the present invention. When the electric control panel row 7 is provided in an even number, as in the above-described embodiment, the two electric control panel rows 7 are set as one set of electric control panel rows, and a pair of adjacent electric control panels What is necessary is just to make it a warm air area | region between row groups, but when arrange | positioning the odd-numbered electric control panel row | line | column 7 of 3 or 3 or more so that the odd-numbered electric control panel row | line | column 7 which is not paired may arise. Therefore, in this case, as shown in FIG. 3 and FIG. 4, the heat-insulating partition walls 23 are arranged at positions away from the inside of the heat-insulating outer wall 2, and the odd-numbered electric control panel rows are not paired. 7 is provided so as to face the cold air intake surface 8 with an interval, and the cold air is discharged from the cold air discharge port 11 between the outermost odd-numbered electric control panel row 7 and the heat insulating partition wall 23. 14, and a cool air discharge duct 10 and a partition 13 are provided on the upper side. It is sufficient.

図３及び図４に示す形態の場合には、複数台の空調機１７により電気制御盤を冷却するようにしているが、１台の空調機１７と電気室１を接続するようにしてもよい。   In the case of the form shown in FIGS. 3 and 4, the electric control panel is cooled by a plurality of air conditioners 17, but one air conditioner 17 and the electric chamber 1 may be connected. .

本発明は、床下ピットを冷気の通風路として用いることができない場合、あるいは電気室内の天井に配線ラックが設けられていない形態の電気室の電気制御盤を冷却する場合に有利である。   The present invention is advantageous when an underfloor pit cannot be used as a cool air passage or when an electric control panel of an electric room in which a wiring rack is not provided on the ceiling of the electric room is cooled.

１ 電気室
２ 外壁又は内壁
３ 断熱性屋根又は断熱性天井部
４ 床下躯体
５ 床
６ 配線ピット
７ 電気制御盤列
８ 冷気吸気面
９ 暖気排気面
１０ 冷気吐き出しダクト
１１ 冷気吐き出し口
１２ 断熱側壁
１３ 仕切り部
１４ 冷気領域
１４ａ 冷気
１５ 暖気領域
１５ａ 暖気
１６ 通気路
１７ 空調機
１７ｂ 室外機
１７ａ 室内機
１８ 暖気吸気口
１９ 暖気送気路
２０ 冷気送気路
２１ 出入り口
２２ 太陽光
２３ 間仕切り壁
２５ 横仕切板 DESCRIPTION OF SYMBOLS 1 Electrical room 2 Exterior wall or inner wall 3 Insulating roof or ceiling part 4 Underfloor frame 5 Floor 6 Wiring pit 7 Electric control panel row 8 Cold air intake surface 9 Warm air exhaust surface 10 Cold air exhaust duct 11 Cold air exhaust port 12 Insulating side wall 13 Partition Part 14 Cold air region 14a Cold air 15 Warm air region 15a Warm air 16 Air passage 17 Air conditioner 17b Outdoor unit 17a Indoor unit 18 Warm air inlet 19 Warm air air passage 20 Cold air air passage 21 Entrance / exit 22 Sunlight 23 Partition wall 25 Horizontal partition plate

Claims (10)

電気室内の床上に間隔をおいて正面側に冷気吸気面を有する電気制御盤列が並列してかつ冷気吸気面が対向するように設けられた電気制御盤の冷却方法において、電気制御盤列の冷気吸気面側の上方に、冷気吐き出しダクトが電気制御盤列に沿って延長するように設けられて、前記冷気吐き出しダクトの下側に設けた冷気吐き出し口から冷気を吐き出して冷気領域を形成し、その冷気領域の冷気を前記冷気吸気面側から吸気するようにし、前記冷気吐き出しダクトの外側面は、断熱被覆されていると共に前記冷気吐き出しダクトの両側壁下部と電気制御盤列の前面上部とを仕切り部により接続して、電気制御盤列前面側間の冷気領域と電気制御盤列背面側の暖気領域を遮断するようにしたことを特徴とする電気制御盤の冷却方法。 In the cooling method of the electric control panel provided such that the electric control panel rows having the cold air suction surface on the front side with a space on the floor in the electric room are arranged in parallel and the cold air suction surfaces face each other, A cold air discharge duct is provided above the cold air intake surface so as to extend along the electric control panel row, and cool air is discharged from a cold air discharge port provided below the cold air discharge duct to form a cold air region. The cold air in the cold region is sucked from the cold air intake surface side, and the outer surface of the cold air discharge duct is thermally insulated and the lower side walls of the cold air discharge duct and the upper front surface of the electric control panel row A cooling method for an electric control panel, characterized in that a cooling air region between the front side of the electric control panel row and a warm air region on the rear side of the electric control panel row are blocked by connecting the partitions . 天井部から冷気吐き出しダクトを離して設けて、各電気制御盤列の背面側の暖気相互の対流を可能にしたことを特徴とする請求項１に記載の電気制御盤の冷却方法。 The method for cooling an electric control panel according to claim 1 , wherein a convection between warm airs on the back side of each electric control panel row is made possible by providing a cool air discharge duct away from the ceiling. 外壁及び天井屋根に断熱層を設けて、電気制御盤の冷却効率を向上させるようにしたことを特徴とする請求項１又は２に記載の電気制御盤の冷却方法。 The method for cooling an electric control panel according to claim 1 or 2 , wherein a heat insulating layer is provided on the outer wall and the ceiling roof to improve the cooling efficiency of the electric control panel. 電気室の暖気吸気口と冷気吐き出し口と室外に設けた空調機における室外機とを、それぞれ暖気送気路と冷気送気路を介して接続していることを特徴とする請求項１〜３のいずれか１項に記載の電気制御盤の冷却方法。 Claim 1-3, characterized in that it the outdoor unit, each connected via a warm air passage and the cool air gas feed path in warm inlet of the electric chamber and the cold air discharge port and the outside to provided the air conditioner The method for cooling an electric control panel according to any one of the above. 電気制御盤が３列以上の奇数列設けられている場合に、対とならない電気制御盤の冷気吸気面に間隔をおいて対向するように仕切り壁を設け、前記対とならない電気制御盤列の冷気吸気面側と仕切り壁との間の上方に、冷気吐き出しダクトが電気制御盤列沿って延長するように設けられ、前記冷気吐き出しダクトの下側に設けた冷気吐き出し口から冷気を吐き出して冷気領域を形成し、その冷気領域の冷気を前記冷気吸気面側から吸気するようにしたことを特徴とする請求項１〜４のいずれか１項に記載の電気制御盤の冷却方法。 When the electric control panel is provided with an odd number of rows of 3 or more, a partition wall is provided so as to face the cold air intake surface of the non-paired electric control panel at an interval, A cold air discharge duct is provided above the cool air intake surface side and the partition wall so as to extend along the electric control panel row, and the cold air is discharged from the cold air discharge port provided below the cold air discharge duct. The electric control panel cooling method according to any one of claims 1 to 4 , wherein a region is formed, and the cold air in the cold region is sucked from the cold air intake surface side. 電気室内の床上に間隔をおいて正面側に冷気吸気面を有する電気制御盤列が並列してかつ冷気吸気面が対向するように設けられた電気制御盤の冷却設備において、電気制御盤列の冷気吸気面側の上方に、冷気吐き出しダクトが電気制御盤列に沿って延長するように設け、前記冷気吐き出しダクトの下側に沿って冷気吐き出し口を設け、前記冷気吐き出しダクトの外側面は、断熱被覆されていると共に前記冷気吐き出しダクトの両側壁下部と電気制御盤列の前面上部とを仕切り部により接続して、電気制御盤列前面側間の冷気領域と電気制御盤列背面側の暖気領域が遮断されていたことを特徴とする電気制御盤の冷却設備。 In a cooling facility for an electric control panel provided such that an electric control panel row having a cold air intake surface on the front side with a space on the floor in the electric room is arranged in parallel and the cold air intake surface faces each other, Above the cold air intake surface side, a cold air discharge duct is provided so as to extend along the electric control panel row, a cold air discharge port is provided along the lower side of the cold air discharge duct, and the outer surface of the cold air discharge duct is A cool air region between the front side of the electric control panel row and the warm air on the rear side of the electric control panel row is formed by connecting the lower portions of both side walls of the cold air discharge duct and the upper front portion of the electric control panel row with a partition. Electric control panel cooling facility characterized in that the area was shut off . 天井部から冷気吐き出しダクトを離して設け、冷気吐き出しダクトの上側と天井部との間に、通気路を設け、各電気制御盤列の背面側の暖気相互の対流を可能にしたことを特徴とする請求項６に記載の電気制御盤の冷却設備。 A cool air discharge duct is provided separately from the ceiling, and a ventilation path is provided between the upper side of the cold air discharge duct and the ceiling to enable convection between warm air on the back side of each electric control panel row. The cooling equipment for an electric control panel according to claim 6 . 外壁及び天井屋根に断熱層が設けられていることを特徴とする請求項６又は７に記載の電気制御盤の冷却設備。 The cooling equipment for an electric control panel according to claim 6 or 7 , wherein a heat insulating layer is provided on the outer wall and the ceiling roof. 電気室の暖気吸気口と冷気吐き出し口と室外に設けた空調機における室外機とを、それぞれ暖気送気路と冷気送気路を介して接続していることを特徴とする請求項６〜８のいずれか１項に記載の電気制御盤の冷却設備。 Claim, characterized in that it the outdoor unit, each connected via a warm air passage and the cool air gas feed path in warm inlet of the electric chamber and the cold air discharge port and the outside to provided the air conditioner 6-8 The cooling equipment for the electric control panel according to any one of the above. 電気制御盤が３列以上の奇数列設けられている場合に、対とならない奇数列目の電気制御盤の冷気吸気面に間隔をおいて対向するように仕切り壁を設け、前記対とならない奇数列目の電気制御盤列の冷気吸気面側と仕切り壁との間の上方に、冷気吐き出しダクトが電気制御盤列に沿って延長するように設けられ、前記冷気吐き出しダクトの下側に設けた冷気吐き出し口から冷気を吐き出して冷気領域が形成され、その冷気領域の冷気が前記冷気吸気面側から吸気されるようにしたことを特徴とする請求項６〜９のいずれか１項に記載の電気制御盤の冷却設備。 When the electric control panel is provided with an odd number of rows of 3 or more, a partition wall is provided so as to face the cold air intake surface of the odd-numbered electric control panel that is not paired with an interval, and the odd number that is not paired A cold air discharge duct is provided so as to extend along the electric control panel row above the cold air intake surface side of the row of electric control panel rows and the partition wall, and provided below the cold air discharge duct. cold air region is formed by discharging cool air from the cold air outlet, according to any one of claims 6-9 in which the cold air of the cold air area, characterized in that the so that the intake from the cold air intake side Electric control panel cooling equipment.
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