JPH0681450B2 - Cooling water supply device for rotating electric machine - Google Patents
Cooling water supply device for rotating electric machineInfo
- Publication number
- JPH0681450B2 JPH0681450B2 JP59059576A JP5957684A JPH0681450B2 JP H0681450 B2 JPH0681450 B2 JP H0681450B2 JP 59059576 A JP59059576 A JP 59059576A JP 5957684 A JP5957684 A JP 5957684A JP H0681450 B2 JPH0681450 B2 JP H0681450B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling water
- temperature
- electric machine
- rotating electric
- water supply
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Flow Control (AREA)
- Motor Or Generator Cooling System (AREA)
Description
【発明の詳細な説明】 ［発明の技術分野］ 本発明は、タービン発電機などの回転電機の発熱体に冷
却水を循環して冷却する回転電機の冷却水供給装置に関
する。Description: TECHNICAL FIELD [0001] The present invention relates to a cooling water supply device for a rotating electric machine that circulates cooling water in a heating element of a rotating electric machine such as a turbine generator to cool the rotating electric machine.
［発明の技術的背景とその問題点］ 一般に大容量回転電機においては、その大電流により発
生するジュール熱のため、回転電機全体が温度上昇して
種々の悪影響をおよぼす。そこで、回転電機の温度上昇
を防止するための冷却装置がいろいろ提案されている。
例えばタービン発電機の固定子巻線を直接に水冷却また
は油冷却するための冷却系統は、貯水槽，冷却水ポン
プ，水温調整装置としてのクーラーおよびそのクーラー
に使用する水量を自動制御する弁類を主要な構成部分と
している。[Technical Background of the Invention and Problems Thereof] Generally, in a large-capacity rotating electric machine, Joule heat generated by a large current thereof causes a temperature rise of the entire rotating electric machine, which causes various adverse effects. Therefore, various cooling devices for preventing the temperature rise of the rotating electric machine have been proposed.
For example, a cooling system for directly water-cooling or oil-cooling a stator winding of a turbine generator includes a water tank, a cooling water pump, a cooler as a water temperature adjusting device, and valves for automatically controlling the amount of water used for the cooler. Is the main constituent part.
一般にこのような装置においては、タービン発電機へ供
給する冷却水量は、供給冷却水の圧力を所定の値（通常
1.6〜2.0kg/cm2）で常に一定値となるよう圧力調整弁で
供給管路の抵抗を調整することにより設定している。す
なわち、供給冷却水量は、常にタービン発電機の定格負
荷時における必要冷却水量が得られるように圧力を基準
として調整される。しかも冷却水ポンプは、三相誘導電
動機などにより定速運転されており、タービン発電機の
運転負荷の増減にかかわらず、前記固定巻線へ循環する
冷却水量は一定となり、ポンプの一定の容量で運転され
る。Generally, in such a device, the amount of cooling water to be supplied to the turbine generator is determined by adjusting the pressure of the supplied cooling water to a predetermined value (normally
It is set by adjusting the resistance of the supply line with the pressure control valve so that it will always be a constant value of 1.6 to 2.0 kg / cm 2 ). That is, the supplied cooling water amount is adjusted with the pressure as a reference so that the required cooling water amount can always be obtained at the rated load of the turbine generator. Moreover, the cooling water pump is operated at a constant speed by a three-phase induction motor, etc., and the amount of cooling water circulated to the fixed winding is constant regardless of the increase or decrease of the operating load of the turbine generator, and the pump has a constant capacity. Be driven.
またタービン発電機がターニング中および停止時、たと
えばタービン発電機の週末における一時的な停止点検や
他の発電機関連機器の点検による場合、あるいは負荷調
整用発電プラントなどのタービン発電機の負荷調整運転
における定期的な停止期間においても、冷却水系統の純
度維持とタービン発電機がただちに再稼働できる状態を
維持するために、ポンプを運転して固定子巻線の導体内
へ冷却水を供給して循環させている。In addition, when the turbine generator is turning or when it is stopped, for example, during a temporary stop inspection of the turbine generator on weekends or when checking other generator-related equipment, or during load adjustment operation of a turbine generator such as a load adjustment power plant. In order to maintain the purity of the cooling water system and maintain the turbine generator in a state where it can be immediately restarted even during the periodic stoppage period in the, the pump is operated to supply the cooling water into the conductor of the stator winding. Circulating.
このようにタービン発電機が負荷調整運転中、無負荷運
転中あるいは停止中においても、前記冷却水循環系統
は、100％の稼働状態であり、常時100％の補機動力を必
要とするため、無駄なエネルギーを消費していることに
なる。また前述の冷却装置は、保守上の不利もあった。
これはタービン発電機が無負荷、停止中であるときある
いは冬期または寒冷地や高地などの外気温度がきわめて
低い所においては冷却水の温度が低下するため、タービ
ン発電機機内は急激に冷やされる。さらに機内の封入ガ
ス（水素や空気など）の結露によるコイル絶縁や機内部
品に悪い影響を与えるという不具合があった。In this way, even when the turbine generator is under load adjustment operation, no-load operation, or is stopped, the cooling water circulation system is in a 100% operating state and always requires 100% auxiliary power, which is a waste. It consumes a lot of energy. Further, the cooling device described above has a disadvantage in maintenance.
This is because the temperature of the cooling water decreases when the turbine generator is unloaded, is stopped, or in a place where the outside air temperature is extremely low, such as in winter or in cold regions or highlands, so the inside of the turbine generator is rapidly cooled. In addition, there was a problem that the coil insulation and the parts inside the machine were adversely affected by the dew condensation of the enclosed gas (hydrogen, air, etc.) inside the machine.
［発明の目的］ 本発明の目的は、エネルギーの浪費や温度変化の低減が
なされた回転電機の冷却水供給装置を提供するにある。[Object of the Invention] An object of the present invention is to provide a cooling water supply device for a rotating electric machine in which waste of energy and changes in temperature are reduced.
［発明の概要］ 本発明は、回転電機内部の発熱部を冷却するために貯水
槽，冷却水ポンプ，冷却水温を調整するためのクーラー
を主構成部分とする冷却水供給系統を備えた回転電機の
冷却水供給装置において、前記冷却水供給系統に前記回
転電機へ供給する冷却水量に応じて前記冷却水ポンプを
制御する吐出量制御機構と、前記冷却水供給系統の途中
のバイパス管路に流れる冷却水を加熱する加熱装置と、
前記回転電機の機内の封入気体の湿度を気体の露点温度
として測定する湿度検出器と、前記回転電機へ供給する
冷却水温度を前記機内検出湿度の示す露点温度の値より
高く維持するために前記加熱装置を制御する調節計とを
設けたことを特徴とする。[Summary of the Invention] The present invention provides a rotating electric machine including a cooling water supply system mainly including a water tank, a cooling water pump, and a cooler for adjusting the cooling water temperature in order to cool a heat generating portion inside the rotating electric machine. In the cooling water supply device, a discharge amount control mechanism that controls the cooling water pump according to the amount of cooling water supplied to the rotary electric machine in the cooling water supply system and a bypass pipe in the middle of the cooling water supply system. A heating device for heating the cooling water,
A humidity detector that measures the humidity of the gas enclosed in the machine of the rotating electric machine as a dew point temperature of the gas, and the temperature of the cooling water supplied to the rotating electric machine is maintained to be higher than the value of the dew point temperature of the detected humidity inside the machine. A controller for controlling the heating device is provided.
［発明の実施例］ 以下、本発明を図面に示す各実施例について説明する。
第１図に示す実施例において、被冷却回転電機１である
タービン発電機の固定子巻線２には、中空導体が使われ
て冷却水管路３を形成している。この冷却水管路３に対
する冷却水供給系統は、貯水槽４、冷却水ポンプ５、ク
ーラー７およびフィルター11の主要構成部分を有し、さ
らにこの系統に使用する冷却水量を調節するための温度
調整弁８、締り弁18およびしゃ断弁19を設けている。さ
らに冷却水を高純度の純水にするためにイオン交換塔17
を設けてある。[Embodiments of the Invention] Hereinafter, embodiments of the present invention shown in the drawings will be described.
In the embodiment shown in FIG. 1, a hollow conductor is used for a stator winding 2 of a turbine generator, which is a rotary electric machine to be cooled 1, to form a cooling water conduit 3. The cooling water supply system for the cooling water pipe line 3 has main components of a water storage tank 4, a cooling water pump 5, a cooler 7 and a filter 11, and a temperature adjusting valve for adjusting the amount of cooling water used in this system. 8. A shutoff valve 18 and a shutoff valve 19 are provided. Furthermore, in order to convert the cooling water into pure water of high purity, the ion exchange tower 17
Is provided.
この冷却水供給系統において、ポンプ５を運転すると、
貯水槽４内の冷却水は、クーラー７に導かれてここで冷
却され、温度調整弁８でクーラー７を介さない高温の冷
却水と混合して所定の温度になる。さらにフィルター11
から供給管15を通ってタービン発電機１に導入される。
そして固定子巻線２の熱を奪い温度上昇した冷却水は、
戻り管16を通って貯水槽４へ帰還する。When the pump 5 is operated in this cooling water supply system,
The cooling water in the water storage tank 4 is guided to the cooler 7 and cooled there, and is mixed with the high temperature cooling water not passing through the cooler 7 by the temperature control valve 8 to reach a predetermined temperature. Filter 11
Is introduced into the turbine generator 1 through the supply pipe 15.
And the cooling water that has taken the heat of the stator winding 2 and has increased in temperature,
Return to the water tank 4 through the return pipe 16.
一方、フィルター11を出た冷却水の一部は、固定子巻線
２へ供給されずにイオン交換器17へバイパスされ、高純
度の純水となって貯水槽４へ戻される。このように冷却
水は、連続的な循環により固定子巻線２の冷却を行なっ
ているものである。この冷却水の循環供給の過程におい
て、温度調節器９およびポジショナー10で冷却水の温度
を検出し、この温度に対応する温度検出信号を作り、こ
の信号によって温度調整弁８を制御することにより、冷
却水の温度は調節される。On the other hand, a part of the cooling water that has flowed out of the filter 11 is bypassed to the ion exchanger 17 without being supplied to the stator winding 2 and is returned to the water tank 4 as pure water of high purity. In this way, the cooling water is cooling the stator winding 2 by continuous circulation. In the process of circulating and supplying the cooling water, the temperature of the cooling water is detected by the temperature controller 9 and the positioner 10, a temperature detection signal corresponding to this temperature is generated, and the temperature adjusting valve 8 is controlled by this signal, The temperature of the cooling water is adjusted.
しかして本発明においては、供給管15の途中に設けた締
り弁18の下流に冷却水ポンプ５の吐出量を制御する吐出
量制御機構50を設けている。すなわち、供給管15の途中
に供給冷却水量を検出してその検出信号を出力する流量
検出装置24を設け、この検出信号を検出信号変換器25で
制御用信号に変換し、この制御用信号を入力して予め設
定していた設定値と制御演算して制御出力信号を発する
制御出力設定器26でインバータ装置27の周波数を変化さ
せて冷却水ポンプ５の駆動モータ６の回転速度を増減さ
せるよう構成されている。なお、制御出力設定器26は、
供給管15内の検出流量に対応した制御信号を入力とし、
予めタービン発電機１の固定子巻線２に供給すべき冷却
水量に相当する信号値を設定しておき、この設定値と前
記入力値との偏差を打ち消して設定値になるように制御
演算して制御出力信号を発進するものである。However, in the present invention, the discharge amount control mechanism 50 for controlling the discharge amount of the cooling water pump 5 is provided downstream of the shutoff valve 18 provided in the middle of the supply pipe 15. That is, a flow rate detection device 24 that detects the amount of supplied cooling water and outputs the detection signal is provided in the middle of the supply pipe 15, the detection signal is converted into a control signal by the detection signal converter 25, and the control signal is The frequency of the inverter device 27 is changed by the control output setting device 26 which outputs a control output signal by performing a control calculation with a preset value which is input so as to increase or decrease the rotation speed of the drive motor 6 of the cooling water pump 5. It is configured. The control output setting device 26 is
Input the control signal corresponding to the detected flow rate in the supply pipe 15,
A signal value corresponding to the amount of cooling water to be supplied to the stator winding 2 of the turbine generator 1 is set in advance, and the deviation between this set value and the input value is canceled to perform control calculation so that the set value is obtained. To start the control output signal.
また、本発明においては、供給管15の途中に設けたしゃ
断弁19の上流と下流とにわたって加熱装置20を設けてい
る。この加熱装置20は冷却水が通るバイパス管21を有
し、この管21の周わりのヒータ20aの容量を切替器23で
切換制御するよう構成されている。Further, in the present invention, the heating device 20 is provided upstream and downstream of the shutoff valve 19 provided in the middle of the supply pipe 15. The heating device 20 has a bypass pipe 21 through which cooling water passes, and is configured so that the capacity of the heater 20a around the pipe 21 is switched and controlled by a switch 23.
さらにタービン発電機１の機内湿度を検出する湿度検出
器28を設け、また固定子巻線２の冷却水管路３の入口付
近の冷却水の温度を検出する温度検出器22を設ける。そ
して、湿度検出器28の検出信号と温度検出器22の冷却水
温度検出信号とを調節計29に入力し、この調節計29で湿
度検出信号と温度検出信号とを比較演算することにより
タービン発電機１の機内湿度に対して、冷却水供給温度
によって機内湿度を所定値より高く維持するために加熱
装置20の容量を制御する制御信号を算出し、この制御信
号を切換装置23に送って加熱装置20を働かせて冷却水の
温度を調整してタービン発電機１へ供給する冷却水温度
を調整するように構成されている。Furthermore, a humidity detector 28 for detecting the humidity inside the turbine generator 1 is provided, and a temperature detector 22 for detecting the temperature of the cooling water near the inlet of the cooling water pipe 3 of the stator winding 2 is provided. Then, the detection signal of the humidity detector 28 and the cooling water temperature detection signal of the temperature detector 22 are input to the controller 29, and the controller 29 compares and calculates the humidity detection signal and the temperature detection signal. With respect to the in-machine humidity of the machine 1, a control signal for controlling the capacity of the heating device 20 in order to maintain the in-machine humidity higher than a predetermined value by the cooling water supply temperature is calculated, and this control signal is sent to the switching device 23 to heat the device. The device 20 is operated to adjust the temperature of the cooling water to adjust the temperature of the cooling water supplied to the turbine generator 1.
次に、本発明による冷却水供給装置の冷却水供給作動に
ついて説明する。タービン発電機１の通常運転時には、
タービン発電機１の定格負荷時の所要冷却水量に相当す
る信号値を制御出力設定器26に設定することにより、電
動機６およびポンプ５は定格運転状態を維持し、冷却水
供給装置は従来と同様に作動する。このときしゃ断弁19
は開の状態にあり、供給管路15とバイパス管路21とに冷
却水が通水している。Next, the cooling water supply operation of the cooling water supply device according to the present invention will be described. During normal operation of the turbine generator 1,
By setting the signal value corresponding to the required cooling water amount at the rated load of the turbine generator 1 in the control output setting device 26, the electric motor 6 and the pump 5 maintain the rated operation state, and the cooling water supply device is the same as the conventional one. Works. Shut-off valve 19 at this time
Is in an open state, and cooling water is flowing through the supply pipeline 15 and the bypass pipeline 21.
タービン発電機１がターニング中あるいは停止時は、し
ゃ断弁19を閉にすることにより、タービン発電機１の固
定子巻線２の冷却水管路３に供給される冷却水量は、す
べてバイパス回路21へ送られて加熱装置20で温められて
循環する。そして冷却水の温度低下によってタービン発
電機１内が急激に冷やされないように調和して冷却する
ようにしてある。一方、冷却水の一部は、通常運転と同
様にフィルタ11を出てからイオン交換塔17を経て高純度
の純水となって貯水槽４へ直接戻される。したがって、
貯水槽４内の冷却水の純度は、常に所定の範囲内に維持
されかつタービン発電機１への冷却水の循環により冷却
水系統内の冷却水純度も常に所定の範囲に維持される。When the turbine generator 1 is turning or stopped, the shut-off valve 19 is closed so that all the cooling water supplied to the cooling water pipe 3 of the stator winding 2 of the turbine generator 1 is supplied to the bypass circuit 21. It is sent, heated by the heating device 20, and circulated. Then, the inside of the turbine generator 1 is harmoniously cooled so that the inside of the turbine generator 1 is not suddenly cooled due to the temperature drop of the cooling water. On the other hand, a part of the cooling water is discharged from the filter 11 as in the normal operation and then passed through the ion exchange tower 17 to become high-purity pure water which is directly returned to the water storage tank 4. Therefore,
The purity of the cooling water in the water storage tank 4 is always maintained within a predetermined range, and the circulation of the cooling water to the turbine generator 1 also always maintains the purity of the cooling water within the cooling water system within a predetermined range.
次に、外気温度の低下にともなって循環する冷却水の温
度が低下してきた場合には、調節計29で湿度検出信号と
温度検出信号とを比較演算することによりタービン発電
機１の機内湿度に対して、冷却水供給温度が所定の値以
上の機内湿度より高く維持できるように加熱装置20の容
量を制御する制御信号を算出し、この制御信号を切換装
置23に送って加熱装置20を働かせて冷却水の温度をあげ
てタービン発電機１へ供給する冷却水温度を調整する。
したがって、外気温度の大幅な変化に対しても、タービ
ン発電機１に供給する冷却水の温度を機内ガスの露点温
度に対して常に所定の値以上に維持しながら循環供給す
ることができる。Next, when the temperature of the circulating cooling water decreases as the outside air temperature decreases, the controller 29 compares and calculates the humidity detection signal and the temperature detection signal to determine the internal humidity of the turbine generator 1. On the other hand, a control signal for controlling the capacity of the heating device 20 is calculated so that the cooling water supply temperature can be maintained higher than the in-machine humidity above a predetermined value, and the control signal is sent to the switching device 23 to activate the heating device 20. The temperature of the cooling water is raised to adjust the temperature of the cooling water supplied to the turbine generator 1.
Therefore, even if the outside air temperature changes significantly, it is possible to circulate and supply the cooling water supplied to the turbine generator 1 while always maintaining the temperature of the dew point temperature of the in-machine gas at a predetermined value or higher.
タービン発電機１の無負荷運転時におけるポンプ５の必
要吐出量は、冷却水の純度維持のため、イオン交換に必
要な最小流量と、加熱装置20への所要流量とによって決
定される。タービン発電機１の定格運転時におけるポン
プ５の吐出流量は、非常に小さく、この値は一般に1/2
以下で充分である。したがって、制御出力設定器26によ
り供給冷却水量が所定の値に減少するように設定値を変
更し、ポンプ５の駆動電動機６の回転速度を制御してポ
ンプ吐出量を減少させて運転する。The required discharge amount of the pump 5 during the no-load operation of the turbine generator 1 is determined by the minimum flow rate required for ion exchange and the required flow rate to the heating device 20 in order to maintain the purity of the cooling water. The discharge flow rate of the pump 5 during the rated operation of the turbine generator 1 is very small, and this value is generally 1/2.
The following is sufficient. Therefore, the set value is changed by the control output setting device 26 so that the supplied cooling water amount is reduced to a predetermined value, the rotational speed of the drive motor 6 of the pump 5 is controlled, and the pump discharge amount is reduced to operate.
一般に、このような冷却水供給装置に使用されるポンプ
５には、遠心ポンプが使用されており、ポンプの吐出流
量はポンプ回転数にほぼ正比例し、吐出圧力（揚程）
は、ポンプの回転数の２乗に比例して増減する。このよ
うなポンプの特性曲線の一例を第２図に示している。第
２図において、実線のＰ−Q1およびL10はポンプ定格回
転時のＰ−Ｑ特性およびポンプ軸動力特性を示し、点線
のＰ−Q2およびL20はポンプ回転数を減少させたときの
Ｐ−Ｑ特性およびポンプ軸動力特性を示している。そし
て曲線Ｏ−Ａは、タービン発電機１の冷却水循環回路の
冷却水量変動に対する流水抵抗曲線を示している。In general, a centrifugal pump is used as the pump 5 used in such a cooling water supply device, and the discharge flow rate of the pump is almost directly proportional to the pump rotation speed, and the discharge pressure (head).
Increases or decreases in proportion to the square of the rotation speed of the pump. An example of the characteristic curve of such a pump is shown in FIG. In Figure 2, a solid line P-Q1 and L 10 represents a P-Q characteristic and pump shaft power characteristics during the pump rated speed, P when the dotted P-Q2 and L 20 are of reduced pump speed The -Q characteristic and the pump shaft power characteristic are shown. A curve OA shows a running water resistance curve with respect to a variation in the amount of cooling water in the cooling water circulation circuit of the turbine generator 1.
ここで、ポンプ５の吐出圧力は、常にその冷却水循環回
路の流水抵抗と平衡した状態で運転される。したがっ
て、定格運転時には、実線で示すＰ−Q1曲線と管路の流
水抵抗曲線Ｏ−Ａの交点P0の吐出流量Q0および吐出圧力
P0の値で運転されており、ポンプ駆動用電動機６の回転
数を減少させた場合には、点線で示すＰ−Q2曲線と流水
抵抗曲線Ｏ−Ａの交点P1の吐出流量Q1および吐出圧力P1
の値にポンプ運転容量を減少して運転される。またポン
プ５の軸動力は、ほぼ回転数の３乗に比例して減少して
L0からL1となる。しかして運転エネルギーはL0-L1だけ
節約されることになる。Here, the discharge pressure of the pump 5 is always operated in a state of being balanced with the flow resistance of the cooling water circulation circuit. Therefore, during the rated operation, the discharge flow rate Q 0 and the discharge pressure at the intersection point P 0 of the P-Q1 curve shown by the solid line and the flowing water resistance curve OA of the pipeline.
When operated at the value of P 0 and the rotational speed of the pump driving electric motor 6 is decreased, the discharge flow rate Q 1 at the intersection point P 1 of the P-Q2 curve and the flowing water resistance curve OA shown by the dotted line and Discharge pressure P 1
It is operated by reducing the pump operating capacity to the value of. In addition, the shaft power of the pump 5 decreases in proportion to the cube of the rotation speed.
From L 0 to L 1 . Therefore, the driving energy is saved by L 0 -L 1 .
［発明の効果］ 以上のように本発明によれば、回転電機の冷却水供給系
の途中にその冷却水流量を測定する流量検出発信装置を
設け、この検出流量に対応して冷却水ポンプの駆動電動
機の回転速度を制御するよう構成したことにより、回転
電機の負荷に対応したポンプの吐出量制御が可能とな
り、また回転電機の機内湿度に対して、冷却水供給温度
によって機内湿度を所定値より高く維持するために加熱
装置を働かせて冷却水の温度をあげて回転電機へ供給す
る冷却水温度を調整できるので、機内の急激な温度変化
による熱応力などの発生が防止できるとともに、ポンプ
を効率的に省エネルギー的に運転することができる。ま
た機内ガスの湿分状態、すなわち機内ガスの露点温度を
検出し、この値より常に、機内ガス温度を高く維持する
ことにより定検や負荷調整用発電機の保守やターニング
運転等における巻線の絶縁低下や劣化防止ができる。[Effects of the Invention] As described above, according to the present invention, a flow rate detection transmitter for measuring the flow rate of the cooling water is provided in the cooling water supply system of the rotating electric machine, and the cooling water pump corresponding to the detected flow rate is used. By configuring to control the rotation speed of the drive motor, it becomes possible to control the discharge rate of the pump according to the load of the rotating electric machine, and the humidity inside the rotating electric machine can be adjusted to a specified value by the cooling water supply temperature. In order to keep the temperature higher, the heating device is activated to raise the temperature of the cooling water and adjust the temperature of the cooling water to be supplied to the rotating electric machine. It can be operated efficiently and energy saving. Also, the humidity condition of the gas inside the machine, that is, the dew point temperature of the gas inside the machine, is detected, and the temperature of the gas inside the machine is constantly kept higher than this value to maintain the temperature of the gas inside the machine, maintenance of the generator for load adjustment, turning, It can prevent insulation deterioration and deterioration.
第１図は本発明による回転電機の冷却水供給装置の一実
施例を示す系統図、第２図は本発明に使用する冷却水ポ
ンプの特性を示す特性図である。 １……回転電機、２……固定子巻線 ３……冷却水管路、４……貯水槽 ５……冷却水ポンプ、６……ポンプ駆動モータ ７……クーラー、８……温度調節弁 ９……温度調整弁、10……ポジショナー 11……フィルター、15,16……冷却水配管 17……イオン交換塔、19……しゃ断弁 20……加熱装置、23……切替装置 22……温度検出器、24……流量検出器 25……検出信号変換器、26……制御出力設定器 27……インバータ、28……湿度検出器 29……圧力検出器、50……吐出量制御機構FIG. 1 is a system diagram showing an embodiment of a cooling water supply device for a rotary electric machine according to the present invention, and FIG. 2 is a characteristic diagram showing characteristics of a cooling water pump used in the present invention. 1 ... Rotating electric machine, 2 ... Stator winding 3 ... Cooling water pipe line, 4 ... Water tank 5 ... Cooling water pump, 6 ... Pump drive motor 7 ... Cooler, 8 ... Temperature control valve 9 …… Temperature control valve, 10 …… Positioner 11 …… Filter, 15,16 …… Cooling water piping 17 …… Ion exchange tower, 19 …… Shutdown valve 20 …… Heating device, 23 …… Switching device 22 …… Temperature Detector, 24 ... Flow rate detector 25 ... Detection signal converter, 26 ... Control output setting device 27 ... Inverter, 28 ... Humidity detector 29 ... Pressure detector, 50 ... Discharge rate control mechanism
Claims (1)
水槽，冷却水ポンプ，冷却水温を調整するためのクーラ
ーを主構成部分とする冷却水供給系統を備えた回転電機
の冷却水供給装置において、前記冷却水供給系統に前記
回転電機へ供給する冷却水量に応じて前記冷却水ポンプ
を制御する吐出量制御機構と、前記冷却水供給系統の途
中のバイパス管路に流れる冷却水を加熱する加熱装置
と、前記回転電機の機内の封入気体の湿度を気体の露点
温度として測定する湿度検出器と、前記回転電機へ供給
する冷却水温度を前記機内検出湿度の示す露点温度の値
より高く維持するために前記加熱装置を制御する調節計
とを設けたことを特徴とする回転電機の冷却水供給装
置。1. A cooling water supply for a rotating electric machine comprising a water tank, a cooling water pump, and a cooling water supply system mainly composed of a cooler for adjusting the cooling water temperature for cooling a heat generating portion inside the rotating electric machine. In the device, a discharge amount control mechanism that controls the cooling water pump according to the amount of cooling water supplied to the rotary electric machine in the cooling water supply system, and heating the cooling water flowing in a bypass pipe in the middle of the cooling water supply system. A heating device, a humidity detector that measures the humidity of the enclosed gas in the machine of the rotating electric machine as the dew point temperature of the gas, and the temperature of the cooling water supplied to the rotating electric machine is higher than the value of the dew point temperature indicated by the in-machine detected humidity. A cooling water supply device for a rotating electric machine, comprising: a controller for controlling the heating device to maintain the temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59059576A JPH0681450B2 (en) | 1984-03-29 | 1984-03-29 | Cooling water supply device for rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59059576A JPH0681450B2 (en) | 1984-03-29 | 1984-03-29 | Cooling water supply device for rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60204241A JPS60204241A (en) | 1985-10-15 |
| JPH0681450B2 true JPH0681450B2 (en) | 1994-10-12 |
Family
ID=13117193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59059576A Expired - Fee Related JPH0681450B2 (en) | 1984-03-29 | 1984-03-29 | Cooling water supply device for rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0681450B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19846712A1 (en) * | 1998-10-09 | 2000-04-13 | Hilti Ag | Device for processing a hard surface |
| DE102006000273A1 (en) * | 2006-06-07 | 2007-12-13 | Hilti Ag | Liquid-cooled portable power tool with standby method |
| CN115111513B (en) * | 2022-06-24 | 2023-06-02 | 重庆长安新能源汽车科技有限公司 | Oil cooling loop control method and system of oil cooling motor system and electric automobile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55114167A (en) * | 1979-02-26 | 1980-09-03 | Toshiba Corp | Controller for cooler |
| JPS5627876B2 (en) * | 1978-11-21 | 1981-06-27 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5627876U (en) * | 1979-08-09 | 1981-03-16 | ||
| JPS58166267U (en) * | 1982-04-28 | 1983-11-05 | 株式会社東芝 | Electric motor cooling control device |
-
1984
- 1984-03-29 JP JP59059576A patent/JPH0681450B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5627876B2 (en) * | 1978-11-21 | 1981-06-27 | ||
| JPS55114167A (en) * | 1979-02-26 | 1980-09-03 | Toshiba Corp | Controller for cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60204241A (en) | 1985-10-15 |
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