JPS586336A - Enclosed switchboard - Google Patents
Enclosed switchboardInfo
- Publication number
- JPS586336A JPS586336A JP56103309A JP10330981A JPS586336A JP S586336 A JPS586336 A JP S586336A JP 56103309 A JP56103309 A JP 56103309A JP 10330981 A JP10330981 A JP 10330981A JP S586336 A JPS586336 A JP S586336A
- Authority
- JP
- Japan
- Prior art keywords
- air
- cooling
- cabinet
- cooled
- switchboard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Air Conditioning (AREA)
- Patch Boards (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は防食構造の閉鎖配電盤(1関する。[Detailed description of the invention] The present invention relates to a closed switchboard (1) with anti-corrosion structure.
閉鎖配電盤に収納される王沖1路の強電機器や母線・導
体は大電流を通電するためT1]、気抵抗による発熱か
を)るのでこれを却定の温度」1昇値以下とするためf
:け強制風冷式を採用して、積極的に外気を採り入れ、
発生した熱を奪いとり、排出する方法がとられていた。The high-power equipment, busbars, and conductors of Oki 1st Road, which are housed in a closed switchboard, carry large currents and generate heat due to air resistance. f
:Uses a forced air cooling system to actively draw in outside air.
A method was used to capture and exhaust the generated heat.
ところが、海に近い場合1:は海塩粒子や砂塵の侵入が
あり、I某地帯では腐食性ガスが壕だ地熱発電所では硫
化水素ガスがあるため、冷却用の外気採用C二より腐食
も促進される欠点かを)った。However, if you are close to the sea, sea salt particles and sand dust may enter, and in certain areas, corrosive gas may be present.In geothermal power plants, there is hydrogen sulfide gas, so using outside air for cooling is more likely to cause corrosion than in C2. (Which disadvantages are promoted?)
第1図は従来の閉鎖配’lf、盤の強制風冷式の一実施
例断面図である。FIG. 1 is a cross-sectional view of an embodiment of a conventional closed panel and forced air cooling type panel.
箱体1.ベース2.扉3.背面板4.防虫網5゜しやへ
い板69通気[]7.フィルター8.冷却ファン9.風
尋用、電気機器11.外気12.冷却空気13、上昇空
気14 、排気15よす構成される。Box body 1. Base 2. Door 3. Back plate 4. Insect screen 5° shield plate 69 ventilation []7. Filter 8. Cooling fan9. For air conditioning, electrical equipment 11. Outside air 12. It is composed of cooling air 13, rising air 14, and exhaust air 15.
本発明の目的Fi、瓶食糧食環境置されそれに耐える防
食性能のよい閉鎖配電盤の提供1−ある。The object of the present invention is to provide a closed switchboard with good anti-corrosion performance that can be placed in a bottled food environment and withstand the environment.
以1本発明を第2図に示す一実施例により、その構成を
説明する。The structure of the present invention will now be explained with reference to an embodiment shown in FIG.
箱体1.ベース2 + kn 3 +背面板4.冷却フ
ァン9.電気機益11.冷却空気13.上昇空気14.
移動空気16.移動空気17.冷却降下空気流18.冷
却降下空気19 、サージタンク空気20 、サージタ
ンク流出空気21.冷却用ダクト22.冷却用フィン2
3 。Box body 1. Base 2 + kn 3 + back plate 4. Cooling fan9. Electrical benefits 11. Cooling air 13. Rising air14.
Moving air16. Moving air17. Cooling descending air flow18. Cooling descending air 19, surge tank air 20, surge tank outflow air 21. Cooling duct 22. Cooling fin 2
3.
冷却フィン24.冷却タンク25.冷却風26 、吸気
27゜クーラー28.連結管29 、連結管301ベー
ス31 、冷却ダクト32.ベース33.冷却空気34
.冷却空気流35、連結ダクト36.サージタンク3フ
、ベース38゜連結ダクト39.ガス吸着剤40より構
成される。Cooling fins 24. Cooling tank 25. Cooling air 26, intake air 27° cooler 28. Connecting pipe 29 , connecting pipe 301 base 31 , cooling duct 32 . Base 33. cooling air 34
.. Cooling air flow 35, connecting duct 36. Surge tank 3F, base 38° connection duct 39. It is composed of a gas adsorbent 40.
本発明のように常時rts:食環境の雰囲気を呼吸しな
いように箱体を缶閉構造に構成した場合、電気機器等か
らの発熱を外部に放散しないと温度が上#:1. L、
値、)で使用できなくなってし斗う。電気機器の448
造により、局部的なY/iA度上昇が例えば105dり
であったとするとこ!!、を強制冷却でこの値以下に連
続的に抑制する必要がある。このだめの冷却の空気(−
と空気温tWの低下イtti保が必要となる。When the box body is configured to be closed so as not to breathe the atmosphere of the food environment as in the present invention, the temperature will rise unless the heat generated from electrical equipment is dissipated to the outside. #: 1. L,
value, ) is no longer available. 448 of electrical equipment
Suppose that due to the structure, the local Y/iA degree increase is, for example, 105d! ! , must be continuously suppressed below this value by forced cooling. The cooling air in this tank (-
Therefore, it is necessary to keep the air temperature tW from decreasing.
今電気室の空気流目1とが15℃のとき、外気との入7
1替りがあり、′畠に15℃1−保て1与るとしたとき
、この15°Cに対して105 dl−1−1−昇する
電気品を冷却した場合に密閉され/仁閉幀配電盤内では
30d9程I及のq?気&’、A度の上昇がψ)るもの
としだとき、これを冷却ダクト1′:、よりこの空気を
外部へ導き、冷却フィンにより冷却17たり、冷却タン
ク内に冷却ダクトを入ノ′1て、冷却すること(二より
十分な冷却をする。Now, when the temperature of the air flow number 1 in the electrical room is 15℃, the inflow of outside air 7
There is an alternative, if we assume that 15°C 1-1 is applied to the temperature, then when an electrical item that rises by 105 dl-1-1-1 is heated to 15°C, it will be sealed. In the switchboard, about 30d9 I and q? When the rise in air &', A degree ψ) begins, this air is guided to the outside through a cooling duct 1' and cooled by cooling fins, or a cooling duct is inserted into a cooling tank. 1. Cool down (2. Cool sufficiently.
このよう1−シたあと−リージタンクに入れ圧力を均宿
化り、/ζあとでP]Ijf玲却用空冷却して閉鎖配電
盤内に仄し2てやること11より、良好な空気で電気機
器晴・をノj1.定の温度上、j、−+値以下で使用す
ることができる、これ(二よる防食作用から防穫できる
。After doing this, the pressure is equalized by placing it in a leakage tank, and after that, the pressure is equalized, and after that, the air is cooled and placed in the closed switchboard. From 11. Equipment Haru・wo no j1. It can be used above a certain temperature and below the -+ value of j, and can be protected from the anticorrosion effect due to this.
また、閉鎖配電盤の〃nを開閉したことにより、外気を
閉鎖配′1(L盤内に採り入れることとなるので、この
空気に包含される腐食性ガスを除却するだめのガス吸光
剤を収納し、繰り返し循環するうちに浄化作用が行なわ
れることとなる。In addition, by opening and closing the closed switchboard 〃n, outside air is drawn into the closed switchboard 1 (L), so a gas light absorber is stored to remove the corrosive gas contained in this air. As the water is circulated repeatedly, the purifying action will take place.
第3図は空気流による放熱効果を説明するものである。FIG. 3 explains the heat dissipation effect due to air flow.
電線の許容電流は温度上昇との関係で求められ温度上昇
は空気の汗4速との関係で放熱量が示される、今風法を
放熱係数との関を示すと下式になる。The allowable current of an electric wire is determined in relation to the temperature rise, and the heat radiation amount is expressed in relation to the temperature rise in relation to the sweat rate of the air.The relationship between the modern method and the heat radiation coefficient is expressed by the following formula.
架空電線の許容電流1
風速V(l、/8)のときの対流による熱放散係数ら
一−−−−−−−■
W8−日射1mt (W/C+4 )
d−電線直イ羊(、m)
θ−温Jt土→=1.(dる9)
b−電線の長さ(rM)
η一完全黒体の輻射係数に対する索線材料のそれどの比
R−最P:温度における電線の交流実効抵抗(Ω/T、
c+++)
T−周囲温度(’C)
■=風速(m/5)I−電流(A)
2n1/8を100チとしたときの風速の変化を放熱係
数の変化で求めたものである。Allowable current of overhead wire 1 Heat dissipation coefficient due to convection at wind speed V (l, /8) etc. W8 - Solar radiation 1 mt (W/C + 4) d - Wire straight line (, m ) θ−warm Jt soil→=1. (d9) b - Length of the wire (rM) η - Ratio of each cable material to the radiation coefficient of a perfect black body R - Maximum P: AC effective resistance of the wire at temperature (Ω/T,
c+++) T - Ambient temperature ('C) ■ = Wind speed (m/5) I - Current (A) The change in wind speed when 2n1/8 is set to 100 degrees is determined by the change in the heat radiation coefficient.
また第4図は冷却空気h)を説明するものである発生熱
量なKcal/Jで表わしたとき、冷却C1要する空気
量Qは15°Cの4F気である場合下式となる。Further, FIG. 4 shows the amount of generated heat (Kcal/J) for explaining the cooling air h). When the amount of air Q required for cooling C1 is 4F air at 15° C., the following equation is obtained.
H/K (KCa1/L ) = QX O,29X
△f−−−−−−■Q−理想冷却空気計(n?/L>
△ズー俤埠空気の温度差(d4g )
H−発生My 蛍(KtaJ−/J )K−冷却用フィ
ン23の構造や伝熱面積によって定丑る係数
上式をI K aJ/4当りで求めたものを線Bで示し
たものである。これf二より冷却ファンの風量が決定さ
れる。H/K (KCa1/L) = QX O, 29X
△f---■Q-Ideal cooling air meter (n?/L> △Difference in temperature of Zu-Toubu air (d4g) H-Generation My Firefly (KtaJ-/J) K-Cooling fin 23 The above equation with constant coefficients depending on the structure and heat transfer area is calculated per I KaJ/4 and is shown by line B. From this f2, the air volume of the cooling fan is determined.
また本発明では冷却フィンと、冷却ファンを閉鎖配電盤
上部の配管部に移しても、!、た2ケ所にて冷却しても
効果は同じである0
以上のように本発明によれば電気室を環境改善しなくて
よく、経済的で防食のすぐれた閉鎖配電盤を得ることが
できる。In addition, with the present invention, even if the cooling fins and cooling fan are moved to the piping section above the closed switchboard! The effect is the same even if cooling is performed at two locations.As described above, according to the present invention, there is no need to improve the environment of the electrical room, and an economical closed switchboard with excellent corrosion protection can be obtained.
第1図は従来の自然冷却形閉鎖配電盤の構成を示す説明
、第2図は本考案(二よる閉鎖配電盤の構成一実施例を
示す説明図、第3図は風速と冷却の放散係数を説明する
グラフ、第4図は発熱量と冷却風量を説明するグラフで
ある。
1・・・箱体 2・・・ベース 3・・・扉4・
・・背面板 5・・・防虫網 6・・・しやへい板
7・・・通気口 8・・・フィルター 9・・・
冷却ファン川・・風導 月・・・電気機器 12・
・・外気1;3・・・冷却借気 14・・・−1−昇空
気 15・・・排気16・・・移動空気 】7・・・移
動空気18・・・冷却降]・空気流 11)・・・冷却
降下空気2(]・・・ザサージンク空気 21・・・サ
ージタンク流出空気22・・・冷却用ダクト23・・・
冷却用フィン24・・・冷却フィン 2))・・・
Q却タンク26・・・冷却風 z7・吸気 28
・・クーラー21)・・・連結管 :3(J・・・、
+Ii結宕 31・・・ベース;32・・・冷却ダク
ト3:3・・・ベース 3・1・・・冷却壁気35・
・・冷却空気流 :3()・・・連結ダクト;37
・・・サージタンク 38・・ベース3))・・連結
ダクト4(+・・・ガス吸着創面11すA・・・風速ど
熱故敗係数の変化線B ・・・発熱)slt一定・渦J
A1−差による冷却風情の変化
(7317) 代理人 弁理士 則 近 意 佑(ほ
か1名)第1図
第2図
第3図
風 速 (、′n7′S)Figure 1 is an explanatory diagram showing the configuration of a conventional naturally cooled closed switchboard. Figure 2 is an explanatory diagram showing an example of the configuration of a closed switchboard according to the present invention. Figure 3 is an explanation of wind speed and cooling dissipation coefficient. Figure 4 is a graph explaining the amount of heat generated and the amount of cooling air. 1...Box 2...Base 3...Door 4.
・・Back plate 5・Insect screen 6・Shiyahei board 7・Vent hole 8・Filter 9・・
Cooling fan...Wind guide Moon...Electrical equipment 12.
...Outside air 1;3...Cooling borrowed air 14...-1-Rising air 15...Exhaust air 16...Moving air ]7...Moving air 18...Cooling down]・Air flow 11 )...Cooling descending air 2(]...The surge air 21...Surge tank outflow air 22...Cooling duct 23...
Cooling fin 24...Cooling fin 2))...
Q cooling tank 26...Cooling air z7/Intake 28
...Cooler 21)...Connecting pipe: 3 (J...,
+Ii Yugo 31...Base; 32...Cooling duct 3:3...Base 3.1...Cooling wall air 35.
...Cooling air flow: 3 ()...Connection duct; 37
...Surge tank 38...Base 3))...Connection duct 4 (+...Gas adsorption wound surface 11A...Wind speed and heat failure coefficient change line B...Heat generation) slt constant/vortex J
A1 - Change in cooling air quality due to difference (7317) Agent: Patent attorney Noriyuki Chika (and 1 other person) Figure 1 Figure 2 Figure 3 Wind speed (,'n7'S)
Claims (1)
させ、この空気を管路により外部へ導き冷却させ、さら
に管路な冷却室内を通過させたのちサージタンクを経て
箱体内に戻すことを特徴とする閉鎖配電盤。The air inside the sealed box is forcibly moved by a fan, the air is guided to the outside through a pipe to be cooled, and after passing through the cooling chamber, which is a pipe, it is returned to the box via a surge tank. Features a closed switchboard.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56103309A JPS586336A (en) | 1981-07-03 | 1981-07-03 | Enclosed switchboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56103309A JPS586336A (en) | 1981-07-03 | 1981-07-03 | Enclosed switchboard |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS586336A true JPS586336A (en) | 1983-01-13 |
Family
ID=14350607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56103309A Pending JPS586336A (en) | 1981-07-03 | 1981-07-03 | Enclosed switchboard |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS586336A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6397933B1 (en) * | 1997-02-04 | 2002-06-04 | Telia Ab | Method and device for cooling of electronic/computer equipment and use thereof |
US6874576B2 (en) * | 2001-07-24 | 2005-04-05 | Infineon Technologies Ag | Device for cooling electric or electronic devices |
CN105826840A (en) * | 2016-04-11 | 2016-08-03 | 杨露萍 | Electrical equipment cabinet having convenient movement and heat dissipation functions |
CN106654894A (en) * | 2016-11-01 | 2017-05-10 | 中科电力装备(安徽)智能化科技有限公司 | Relay protection room |
-
1981
- 1981-07-03 JP JP56103309A patent/JPS586336A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6397933B1 (en) * | 1997-02-04 | 2002-06-04 | Telia Ab | Method and device for cooling of electronic/computer equipment and use thereof |
US6874576B2 (en) * | 2001-07-24 | 2005-04-05 | Infineon Technologies Ag | Device for cooling electric or electronic devices |
CN105826840A (en) * | 2016-04-11 | 2016-08-03 | 杨露萍 | Electrical equipment cabinet having convenient movement and heat dissipation functions |
CN106654894A (en) * | 2016-11-01 | 2017-05-10 | 中科电力装备(安徽)智能化科技有限公司 | Relay protection room |
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