JPH056421B2 - - Google Patents
Info
- Publication number
- JPH056421B2 JPH056421B2 JP61106163A JP10616386A JPH056421B2 JP H056421 B2 JPH056421 B2 JP H056421B2 JP 61106163 A JP61106163 A JP 61106163A JP 10616386 A JP10616386 A JP 10616386A JP H056421 B2 JPH056421 B2 JP H056421B2
- Authority
- JP
- Japan
- Prior art keywords
- stator
- cooling
- stator core
- winding
- electric fan
- 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.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 claims description 39
- 238000004804 winding Methods 0.000 claims description 36
- 238000009423 ventilation Methods 0.000 claims description 20
- 239000000498 cooling water Substances 0.000 claims description 6
- 230000020169 heat generation Effects 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
Description
【発明の詳細な説明】
〔発明の属する技術分野〕
この発明は立軸回転電機の固定子鉄心、固定子
巻線を冷却する冷却装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] This invention relates to a cooling device for cooling a stator core and stator windings of a vertical shaft rotating electric machine.
第４図は従来例による立軸回転電機の冷却装置
を示す縦断面図、ポンプ水車に直結運転される発
電電動機は高速回転の場合が多く、かつ水車運
転、ポンプ運転の両回転であるため自己フアンに
よる通風は効率が悪いので、固定子枠に固定され
た別置電動フアンが使用されている。第４図にお
いて上部別置電動フアン１および下部別置電動フ
アン２により加圧された風はまず上部固定子巻線
端３および下部固定子巻線端４を冷却後上下より
回転子の極間へ入り界磁巻線５を冷却する。界磁
巻線５を冷却した風は方向を変え固定子鉄心６に
設けられた通風ダクト７へ入り固定子鉄心７およ
び固定子巻線を冷却し空気冷却器８に達し、空気
冷却器８により冷却された風は再び上部別置電動
フアン１および下部別置電動フアン２へ戻つて循
環する。かかる通風方式によれば、上下の極間か
ら流入した風は回転子の上下から軸方向に流れた
後、90゜向きを変えて固定子鉄心６の通風ダクト
７へ流入するが、この部分の風の流れは非常に乱
れたものとなり、圧力損失が大きくかつ風損も大
きい。このため所要風量を流すためには風圧を高
くしなければならないので別置電動フアン１およ
び２が大きくなると同時にフアンの駆動動力も大
きくなる。また風損の増大により発電電動機の効
率も低下する。
Figure 4 is a vertical cross-sectional view showing a conventional cooling system for a vertical shaft rotating electric machine.The generator motor, which is operated directly connected to a pump-turbine, often rotates at high speed, and because it rotates both during water-turbine operation and pump operation, it is self-fanning. Since ventilation is inefficient, a separate electric fan fixed to the stator frame is used. In Fig. 4, the air pressurized by the upper separate electric fan 1 and the lower separate electric fan 2 first cools the upper stator winding end 3 and the lower stator winding end 4, and then flows from above and below between the poles of the rotor. The field winding 5 is cooled. The wind that has cooled the field winding 5 changes direction and enters the ventilation duct 7 provided in the stator core 6, cools the stator core 7 and the stator windings, reaches the air cooler 8, and is cooled by the air cooler 8. The cooled air returns to the upper separate electric fan 1 and the lower separate electric fan 2 and circulates again. According to this ventilation method, the air flowing in from the upper and lower poles flows in the axial direction from the upper and lower parts of the rotor, and then changes direction by 90 degrees and flows into the ventilation duct 7 of the stator core 6. The wind flow becomes very turbulent, resulting in large pressure losses and large wind losses. Therefore, in order to flow the required amount of air, the wind pressure must be increased, so as the separately installed electric fans 1 and 2 become larger, the driving power of the fans also becomes larger. The efficiency of the generator motor also decreases due to the increase in windage loss.
この発明は、固定子鉄心および固定子巻線をヒ
ートパイプを介して冷却することを目的とする。
An object of the present invention is to cool a stator core and stator windings via a heat pipe.
本発明は、別置電動フアンを上部固定子巻線の
上方に、かつ空気冷却器を下部固定子巻線側に位
置する固定子枠にそれぞれ設け、前記別置電動フ
アンによる冷却風の一方が前記上部固定子巻線を
冷却した後固定子鉄心の下端側にまで通風可能と
なるダクトを固定子枠の軸方向に設け、さらに前
記冷却風の他方が前記回転子の極間に入り界磁巻
線を冷却した後に下部固定子巻線側端を通風冷却
し、この両方の冷却風が前記空気冷却器で合流し
冷却された後再び前記別置電動フアンに戻り循環
する構成とするとともに、前記固定子鉄心に設け
られた通風ダクト部に複数の矩形断面形状を有す
る中空のセグメント状のヒートパイプを互いに周
方向に密接して挿入し、その一端側が発熱源に対
応する固定子鉄心の内径側に位置し他端側が固定
子鉄心の外径側から突出し、その突出部の外周に
冷却パイプを備え、発熱源から発生する熱をヒー
トパイプを介して冷却パイプの冷却水に放熱する
ことによつて達成される。
In the present invention, a separate electric fan is provided above the upper stator winding, and an air cooler is provided in the stator frame located on the lower stator winding side, and one side of the cooling air from the separate electric fan is provided. After cooling the upper stator winding, a duct is provided in the axial direction of the stator frame that allows ventilation to reach the lower end of the stator core, and the other side of the cooling air enters between the poles of the rotor to create a field. After the winding is cooled, the lower stator winding side end is ventilated and cooled, and both of the cooling winds are combined in the air cooler and cooled, and then returned to the separately installed electric fan and circulated, A plurality of hollow segment-shaped heat pipes having a rectangular cross-section are inserted into the ventilation duct provided in the stator core in close contact with each other in the circumferential direction, and one end of the hollow segment-shaped heat pipes is inserted into the ventilation duct portion provided in the stator core, and one end thereof is connected to the inner diameter of the stator core corresponding to the heat generation source. The other end protrudes from the outer diameter side of the stator core, and a cooling pipe is provided around the outer periphery of the protruding part, and the heat generated from the heat source is radiated to the cooling water of the cooling pipe via the heat pipe. It is achieved by doing so.
以下図面に基いて本発明の実施例による立軸回
転電機の冷却装置について説明する。第１図は本
発明の実施例による立軸回転電機の冷却装置の縦
断面図で、従来例を示す第４図と同じ部位は同じ
番号を付してある。
DESCRIPTION OF THE PREFERRED EMBODIMENTS A cooling device for a vertical shaft rotating electric machine according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view of a cooling device for a vertical shaft rotating electrical machine according to an embodiment of the present invention, and the same parts as in FIG. 4 showing a conventional example are given the same numbers.
第１図において上部別置電動フアン１によつて
加圧された風は、２方向に分れ、一方は上部固定
子巻線端３を冷却し固定子枠１１に設けられたダ
クト１２を通つて空気冷却器８に到る。他方は回
転子の極間に入り界磁巻線５を冷却しさらに下部
固定子巻線端４を冷却し空気冷却器８に到る。こ
の両方の冷却風は空気冷却器８の内径側で合流し
空気冷却器８で冷却された後再び上部別置電動フ
アン１に戻り循環する。 In FIG. 1, the air pressurized by the upper separate electric fan 1 is divided into two directions, one of which cools the upper stator winding end 3 and passes through a duct 12 provided in the stator frame 11. This leads to the air cooler 8. The other enters between the poles of the rotor, cools the field winding 5, further cools the lower stator winding end 4, and reaches the air cooler 8. These two types of cooling air join together on the inner diameter side of the air cooler 8, are cooled by the air cooler 8, and then return to the upper separate electric fan 1 for circulation.
固定子鉄心の通風ダクト７には、複数の中空の
セグメント状のヒートパイプ９を挿入し該ヒート
パイプ９の一端側が発熱源に対応する固定子鉄心
の内径側に位置し地端側が固定子鉄心の外径側か
ら突出しその突出部１３の外周に冷却パイプ１０
を備え、固定子巻線に発生する銅損および漂遊負
荷損、固定子鉄心に発生する鉄損等固定子鉄心の
内径側から発生する熱をセグメント状のヒートパ
イプ９の冷媒によつてヒートパイプ９の外径側の
突出部１３へ導いて、突出部１３の外周に配置し
た冷却パイプ１０内を循環する冷却水で冷却しこ
の冷却パイプ１０の冷却水に放熱する。 A plurality of hollow segment-shaped heat pipes 9 are inserted into the ventilation duct 7 of the stator core, and one end of the heat pipe 9 is located on the inner diameter side of the stator core corresponding to the heat generation source, and the bottom end is located on the inner diameter side of the stator core corresponding to the heat generation source. A cooling pipe 10 protrudes from the outer diameter side and is attached to the outer periphery of the protrusion 13.
The heat generated from the inner diameter side of the stator core, such as copper loss and stray load loss generated in the stator winding, and iron loss generated in the stator core, is transferred to the heat pipe by the refrigerant of the segment-shaped heat pipe 9. It is guided to the protruding part 13 on the outer diameter side of the protruding part 9 , is cooled by the cooling water circulating in the cooling pipe 10 disposed on the outer periphery of the protruding part 13 , and heat is radiated to the cooling water of the cooling pipe 10 .
第２図は第１図のＡ−Ａ方向断面図で、ヒート
パイプ９および冷却パイプ１０の配置を示し、セ
グメント状のヒートパイプ９は固定子鉄心の各通
風ダクト７に挿入され固定子鉄心に沿つて円周方
向に16箇配置され一端が固定子鉄心６の内径側に
位置し他端が固定子鉄心の外径側から突出し、そ
の突出部１３に周上に４分割された冷却パイプ１
０を備え、冷却パイプ１０には冷却水を循環させ
ている。第３図は第２図のヒートパイプのＢ−Ｂ
方向断面図で、固定子鉄心６の通風ダクト７にヒ
ートパイプ９を挿入しヒートパイプの突出部１３
には鋼管を２つ割りし、割られた部分を平板で溶
接してふたした冷却パイプ１０をこの平板部分が
ヒートパイプ９に接するようにして溶接してい
る。 FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1, showing the arrangement of the heat pipes 9 and the cooling pipes 10. The segment-shaped heat pipes 9 are inserted into each ventilation duct 7 of the stator core, and are connected to the stator core. Cooling pipes 1 are arranged at 16 locations in the circumferential direction along the circumference, one end is located on the inner diameter side of the stator core 6, the other end projects from the outer diameter side of the stator core, and the cooling pipes 1 are divided into four on the circumference by the protrusion part 13.
0, and cooling water is circulated through the cooling pipe 10. Figure 3 shows the heat pipe B-B in Figure 2.
In the directional cross-sectional view, the heat pipe 9 is inserted into the ventilation duct 7 of the stator core 6, and the protrusion 13 of the heat pipe is
In this case, a steel pipe is split into two parts, the split part is welded to a flat plate, and the cooling pipe 10 is capped, and the flat plate part is welded with the heat pipe 9 in contact with the cooling pipe 10.
本発明の実施例による冷却装置は、固定子鉄心
および固定子巻線の冷却のため従来のように通風
ダクトに風を送る必要がなく、固定子巻線端３，
４および界磁巻線５を別置電動フアン１によつて
通風冷却すればよい。 The cooling device according to the embodiment of the present invention does not require air to be sent to the ventilation duct as in the conventional case for cooling the stator core and stator windings, and the stator winding ends 3,
4 and the field winding 5 may be ventilated and cooled by a separately installed electric fan 1.
本発明によれば、別置電動フアンを上部固定子
巻線の上方に、かつ空気冷却器を下部固定子巻線
側に位置する固定子枠にそれぞれ設け、前記別置
電動フアンによる冷却風の一方が前記上部固定子
巻線を冷却した後固定子鉄心の下端側にまで通風
可能となるダクトを固定子枠の軸方向に設け、さ
らに前記冷却風の他方が前記回転子の極間に入り
界磁巻線を冷却した後に下部固定子巻線側端を通
風冷却し、この両方の冷却風が前記空気冷却器で
合流し冷却された後再び前記別置電動フアンに戻
り循環する構成とするとともに、前記固定子鉄心
に設けられた通風ダクト部に複数の矩形断面形状
を有する中空のセグメント状のヒートパイプを互
いに周方向に密接して挿入し、その一端側が発熱
源に対応する固定子鉄心の内径側に位置し他端側
が固定子鉄心の外径側から突出しその突出部の外
周に冷却パイプを備え発熱源から発生する熱をヒ
ートパイプを介して冷却パイプの冷却水を放熱す
るようにしたので、固定子鉄心の通風ダクトに風
を流す必要がなく、上下の固定子巻線端および界
磁巻線を通風冷却すればよいので、必要風量が大
幅に減少し別置電動フアンの小形化および別置電
動フアンの所要動力を低減させるとともに空気冷
却器を小型化し、かつ固定子鉄心の通風ダクトに
風を流さないことによつて固定子内の風の乱れを
少なくし風損を低減させる効果がある。
According to the present invention, a separate electric fan is provided above the upper stator winding, and an air cooler is provided in the stator frame located on the lower stator winding side, so that the cooling air generated by the separate electric fan is provided. A duct is provided in the axial direction of the stator frame that allows ventilation to reach the lower end of the stator core after one side has cooled the upper stator winding, and the other side of the cooling air enters between the poles of the rotor. After the field winding is cooled, the lower stator winding side end is vented and cooled, and both of the cooling airs are combined in the air cooler, cooled, and then returned to the separately installed electric fan and circulated again. In addition, a plurality of hollow segment-shaped heat pipes having a rectangular cross section are inserted closely in the circumferential direction into a ventilation duct provided in the stator core, one end of which corresponds to a heat generation source. The other end protrudes from the outer diameter side of the stator core, and a cooling pipe is provided around the outer periphery of the protrusion so that the heat generated from the heat source is radiated through the cooling water of the cooling pipe via the heat pipe. As a result, there is no need for air to flow through the ventilation ducts of the stator core, and the upper and lower stator winding ends and field windings can be cooled by ventilation, which greatly reduces the required air volume and allows for smaller separate electric fans. By reducing the power required for the electric fan and separately installed electric fan, downsizing the air cooler, and not allowing air to flow through the ventilation ducts of the stator core, wind turbulence inside the stator is reduced and windage loss is reduced. It has the effect of
第１図は本発明の実施例による立軸回転電機の
冷却装置の縦断面図、第２図は第１図のＡ−Ａ方
向断面図、第３図は第２図のヒートパイプのＢ−
Ｂ方向断面図、第４図は従来例による立軸回転電
機の冷却装置を示す縦断面図である。
１，２：別置電動フアン、３：上部固定子巻線
端、４：下部固定子巻線端、５：界磁巻線、６：
固定子鉄心、７：通風ダクト、９：ヒートパイ
プ、１０：冷却パイプ、１３：突出部。
FIG. 1 is a longitudinal sectional view of a cooling device for a vertical shaft rotating electric machine according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a B--
A cross-sectional view in the B direction, and FIG. 4 is a vertical cross-sectional view showing a conventional cooling device for a vertical shaft rotating electric machine. 1, 2: Separate electric fan, 3: Upper stator winding end, 4: Lower stator winding end, 5: Field winding, 6:
Stator core, 7: ventilation duct, 9: heat pipe, 10: cooling pipe, 13: protrusion.
Claims (1)
心に収納された固定子巻線および回転子の界磁巻
線を固定子枠に固定された別置電動フアンにより
通風冷却する立軸回転電機において、前記別置電
動フアンを上部固定子巻線の上方に、かつ空気冷
却器を下部固定子巻線側に位置する固定子枠にそ
れぞれ設け、前記別置電動フアンによる冷却風の
一方が前記上部固定子巻線を冷却した後固定子鉄
心の下端側にまで通風可能となるダクトを固定子
枠の軸方向に設け、さらに前記冷却風の他方が前
記回転子の極間に入り界磁巻線を冷却した後に下
部固定子巻線側端を通風冷却し、この両方の冷却
風が前記空気冷却器で合流し冷却された後再び前
記別置電動フアンに戻り循環する構成とするとと
もに、前記固定子鉄心に設けられた通風ダクト部
に矩形断面形状を有する中空のセグメント状のヒ
ートパイプを互いに周方向に密接して挿入し、そ
の一端側が発熱源に対応する固定子鉄心の内径側
に位置し、他端側が固定子鉄心の外径側から突出
しその突出部の外周に冷却パイプを備え、発熱源
から発生する熱を前記ヒートパイプを介して冷却
パイプの冷却水に放熱することを特徴とする立軸
回転電機の冷却装置。1. In a vertical shaft rotating electrical machine in which a stator core having a ventilation duct, a stator winding housed in the stator core, and a rotor field winding are ventilated and cooled by a separate electric fan fixed to a stator frame, The separately placed electric fan is provided above the upper stator winding, and the air cooler is provided in the stator frame located on the lower stator winding side, and one of the cooling air from the separately placed electric fan is provided to the upper stator coil. After cooling the child winding, a duct is provided in the axial direction of the stator frame that allows ventilation to reach the lower end of the stator core, and the other side of the cooling air enters between the poles of the rotor and cools the field winding. After cooling, the lower stator winding side end is ventilated and cooled, and both of the cooling airs are combined in the air cooler, cooled, and then returned to the separate electric fan and circulated, and the stator Hollow segment-shaped heat pipes having a rectangular cross section are inserted into a ventilation duct provided in the core in close contact with each other in the circumferential direction, one end of which is located on the inner diameter side of the stator core corresponding to the heat generation source, A vertical shaft whose other end protrudes from the outer diameter side of the stator core and is provided with a cooling pipe around the outer periphery of the protruding portion, and radiates heat generated from the heat generation source to the cooling water of the cooling pipe via the heat pipe. Cooling device for rotating electrical machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10616386A JPS62262633A (en) | 1986-05-09 | 1986-05-09 | Cooling device of vertical shaft rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10616386A JPS62262633A (en) | 1986-05-09 | 1986-05-09 | Cooling device of vertical shaft rotary electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62262633A JPS62262633A (en) | 1987-11-14 |
| JPH056421B2 true JPH056421B2 (en) | 1993-01-26 |
Family
ID=14426613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10616386A Granted JPS62262633A (en) | 1986-05-09 | 1986-05-09 | Cooling device of vertical shaft rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62262633A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0279747A (en) * | 1988-09-14 | 1990-03-20 | Tokyo Electric Power Co Inc:The | Cooling device for vertical-shaft rotary electric machine |
| JP2786860B2 (en) * | 1988-09-14 | 1998-08-13 | 東京電力 株式会社 | Cooling device for vertical rotating electric machine |
| DE10258778A1 (en) * | 2002-12-16 | 2004-07-22 | Siemens Ag | Electrical machine with heat pipes |
| BR112015020362B1 (en) * | 2013-02-25 | 2021-11-03 | Hpev, Inc | RADIAL BREATHING COMPOUND HEATING PIPING SYSTEM TO COOL AND INCREASE THE ENERGY DENSITY OF A ROTATING ELECTRIC MACHINE, STATOR ASSEMBLY TO AN ELECTRIC MACHINE, AND METHOD FOR QUICKLY TRANSFERRING THE STATOR TO A MALÉRICA AIR COIL COOLING FLOW THROUGH STATOR BREATHS |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60124269U (en) * | 1984-01-30 | 1985-08-21 | 三菱電機株式会社 | Stator of rotating electric machine |
-
1986
- 1986-05-09 JP JP10616386A patent/JPS62262633A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62262633A (en) | 1987-11-14 |
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