JPH08331808A - Hydrogen gas drying device for hydrogen-cooled rotary machine - Google Patents
Hydrogen gas drying device for hydrogen-cooled rotary machineInfo
- Publication number
- JPH08331808A JPH08331808A JP7155490A JP15549095A JPH08331808A JP H08331808 A JPH08331808 A JP H08331808A JP 7155490 A JP7155490 A JP 7155490A JP 15549095 A JP15549095 A JP 15549095A JP H08331808 A JPH08331808 A JP H08331808A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen gas
- valve
- hydrogen
- vacuum
- drain
- 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
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- Motor Or Generator Cooling System (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水素冷却式回転機を冷
却する水素ガスを乾燥するための水素ガス乾燥装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen gas drying device for drying hydrogen gas for cooling a hydrogen-cooled rotary machine.
【０００２】[0002]
【従来の技術】水素冷却式回転機を冷却する水素ガスを
乾燥するための水素ガス乾燥装置としては、回転機の回
転子ファンの入口と出口との水素ガス圧力差により、水
素ガスを乾燥筒内を循環させ、乾燥筒内の乾燥剤で除湿
を行う乾燥運転を行い、乾燥剤が十分吸湿したときには
乾燥筒内の加熱器による加熱と真空ポンプによる真空引
による再生運転を行う水素ガス乾燥装置がある。2. Description of the Related Art As a hydrogen gas drying device for drying hydrogen gas for cooling a hydrogen-cooled rotary machine, the hydrogen gas is dried by a difference in hydrogen gas pressure between an inlet and an outlet of a rotor fan of the rotary machine. A hydrogen gas drying device that circulates inside and performs a drying operation that dehumidifies with the desiccant in the drying cylinder, and when the desiccant absorbs sufficient moisture, performs heating operation by the heater in the drying cylinder and regeneration operation by vacuuming with a vacuum pump. There is.
【０００３】図１２はそのような水素冷却式回転機に用
いられる水素ガス乾燥装置を示している。乾燥筒内１に
は乾燥剤２と加熱器３が設けられ、乾燥筒１内の水分を
蓄えるドレンタンク４と水素ガス入口弁５、水素ガス出
口弁６、真空引き弁７、ドレンタンク４を通じてドレン
弁８が接続されている。FIG. 12 shows a hydrogen gas dryer used in such a hydrogen-cooled rotary machine. A desiccant 2 and a heater 3 are provided in the drying cylinder 1, and a drain tank 4 for storing water in the drying cylinder 1, a hydrogen gas inlet valve 5, a hydrogen gas outlet valve 6, a vacuum suction valve 7, and a drain tank 4 are used. The drain valve 8 is connected.
【０００４】水素ガスの乾燥運転は次のようにして行わ
れる。発電機９からの水素ガスは、発電機９内の水素ガ
ス差圧により入口側配管１０を通り、水素ガス入口弁５
を通って乾燥筒１内に入り、乾燥剤２で除湿される。そ
して、水素ガス出口弁６を通り出口側配管１１を通って
発電機９に戻される。このときには、ドレン弁８及び真
空引き弁７は閉じられている。Drying operation of hydrogen gas is performed as follows. The hydrogen gas from the generator 9 passes through the inlet side pipe 10 due to the hydrogen gas differential pressure in the generator 9, and the hydrogen gas inlet valve 5
And enters the drying cylinder 1 and is dehumidified by the desiccant 2. Then, it is returned to the generator 9 through the hydrogen gas outlet valve 6 and the outlet side pipe 11. At this time, the drain valve 8 and the vacuum suction valve 7 are closed.
【０００５】次に、再生運転は以下のようにして行われ
る。運転員は乾燥筒１に設けられた点検窓１２より乾燥
剤２の吸湿による色変化を確認した場合、水素ガス入口
弁５、水素ガス出口弁６を手動で閉め、次に真空引き弁
７を開く。真空引き弁７は、乾燥筒１と真空ポンプ１３
とを結ぶ真空引き配管１４上に設けられており、この真
空引き弁７を開くと、乾燥筒１内の水素ガスは真空ポン
プ１３の吸引により真空引き配管１４、真空ポンプ１
３、大気放出間１５を通じ大気中に放出される。この状
態で制御手段１６内の加熱器３のスイッチを入れ、乾燥
剤２の再生運転を実施する。Next, the regeneration operation is performed as follows. When the operator confirms the color change due to the moisture absorption of the desiccant 2 through the inspection window 12 provided in the drying cylinder 1, the operator manually closes the hydrogen gas inlet valve 5 and the hydrogen gas outlet valve 6, and then the vacuum suction valve 7 is closed. open. The vacuum evacuation valve 7 includes a drying cylinder 1 and a vacuum pump 13.
It is provided on a vacuum evacuation pipe 14 that connects to the vacuum evacuation pipe 7, and when the evacuation valve 7 is opened, the hydrogen gas in the drying cylinder 1 is sucked by the vacuum pump 13 and the vacuum evacuation pipe 14 and the vacuum pump 1 are connected.
3. It is released into the atmosphere through the air release interval 15. In this state, the heater 3 in the control means 16 is turned on to regenerate the desiccant 2.
【０００６】加熱器３はサーモスタットにより、オンオ
フを行うことにより、乾燥筒１内が適当な温度範囲にな
るように制御している。４時間から８時間の加熱運転終
了後、加熱器３のスイッチを切り、真空引き弁７を閉
じ、ドレン弁８を開き、ドレンタンク４に溜まった水分
を排出すると共に空気を乾燥筒１内に導き入れる。この
まま乾燥筒１の自然冷却を４時間程度行い、十分な冷却
後、ドレン弁８を閉じ、真空引き弁７を開き、再び乾燥
筒１内を真空に引く。この後、水素ガス入り口弁５、水
素ガス出口弁６を開いて乾燥運転に戻す。この乾燥運転
から再生運転の切り替えは、運転員により１月に１回程
度行われている。なお、発電所の水素冷却式発電機で
は、通常、真空ポンプ１３は密封油装置の密封油真空ポ
ンプで兼用している。The heater 3 is turned on and off by a thermostat so that the inside of the drying cylinder 1 is controlled within an appropriate temperature range. After completion of the heating operation for 4 to 8 hours, the heater 3 is turned off, the vacuum valve 7 is closed, the drain valve 8 is opened, the water accumulated in the drain tank 4 is discharged, and the air is introduced into the drying cylinder 1. Lead in. In this state, the drying cylinder 1 is naturally cooled for about 4 hours, and after sufficient cooling, the drain valve 8 is closed, the vacuum valve 7 is opened, and the inside of the drying cylinder 1 is evacuated again. After that, the hydrogen gas inlet valve 5 and the hydrogen gas outlet valve 6 are opened to return to the drying operation. The switching from the drying operation to the regenerating operation is performed by the operator about once a month. In the hydrogen-cooled generator at the power plant, the vacuum pump 13 is also commonly used as the sealed oil vacuum pump of the sealed oil device.
【０００７】[0007]
【発明が解決しようとする課題】ところが、今後の火力
発電所の主流となっていくコンバインドサイクルプラン
トでは、一つの発電ユニットが４軸、多い場合には８軸
で構成されており、運転員は、上記の乾燥運転と再生運
転の切り替えを週１回あるいは２回の割合で行わなけれ
ばならないことになる。このため、運転員の負担が増
え、操作する弁の閉め忘れ、開け忘れなどその誤動作が
起こる機会も増加する。However, in a combined cycle plant, which will become the mainstream of thermal power plants in the future, one power generation unit is composed of four axes, and if there are many, it will be composed of eight axes. The switching between the drying operation and the regeneration operation must be performed once or twice a week. For this reason, the burden on the operator increases, and the chances of malfunctions such as forgetting to close or forget to open the operated valve also increase.
【０００８】本発明の目的は、水素ガス乾燥装置の運転
の自動化を図り、運転員の負担を軽減すると共に、信頼
性の高い水素冷却式回転機の水素ガス乾燥装置を得るこ
とにある。It is an object of the present invention to automate the operation of the hydrogen gas drying device, reduce the burden on the operator, and obtain a highly reliable hydrogen gas drying device for a hydrogen-cooled rotary machine.
【０００９】[0009]
【課題を解決するための手段】請求項１の発明は、水素
ガス入口弁、水素ガス出口弁、真空引き弁、及びドレン
弁をそれぞれ遠隔操作可能な弁で構成し、乾燥筒が真空
引きされた状態であるか否かを検出する圧力スイッチ
と、乾燥筒が加熱されている状態であるか否かを検出す
る温度スイッチと、再生運転が開始されたときは圧力ス
イッチ及び温度スイッチの状態に基づいて遠隔操作可能
な弁で構成された水素ガス入口弁、水素ガス出口弁、真
空引き弁、及びドレン弁を開閉操作するための制御手段
とを備えている。According to a first aspect of the present invention, a hydrogen gas inlet valve, a hydrogen gas outlet valve, a vacuum valve, and a drain valve are remote controllable valves, and a drying cylinder is evacuated. The temperature switch that detects whether the drying cylinder is heated, the temperature switch that detects whether the drying cylinder is heated, and the state of the pressure switch and the temperature switch when the regeneration operation is started. A hydrogen gas inlet valve, a hydrogen gas outlet valve, a vacuum evacuation valve, and a control means for opening / closing the drain valve, which are valves that can be remotely controlled based on the above.
【００１０】請求項２の発明は、請求項１の発明におい
て、真空引き弁を通過する水素ガスを検出する第１の水
素ガス検知器を設け、真空引き弁が閉のとき、又は真空
引き弁が開で水素ガス入口弁及び水素ガス出口弁の双方
が閉のときに、第１の水素ガス検知器が水素ガスを検出
したときは、制御手段は乾燥運転及び再生運転を停止す
るようにしている。According to a second aspect of the present invention, in the first aspect of the present invention, a first hydrogen gas detector for detecting hydrogen gas passing through the vacuum evacuation valve is provided, and when the vacuum evacuation valve is closed or when the vacuum evacuation valve is closed. Is open and both the hydrogen gas inlet valve and the hydrogen gas outlet valve are closed, and when the first hydrogen gas detector detects hydrogen gas, the control means stops the drying operation and the regenerating operation. There is.
【００１１】請求項３の発明は、請求項１又は請求項２
の発明において、ドレン弁を通過する水素ガスを検出す
る第２の水素ガス検知器を設け、ドレン弁が閉のとき、
又はドレン弁が開で水素ガス入口弁及び水素ガス出口弁
の双方が閉のときに、第２の水素ガス検知器が水素ガス
を検出したときは、制御手段は乾燥運転及び再生運転を
停止するようにしている。The invention of claim 3 is the invention of claim 1 or claim 2.
In the invention described above, a second hydrogen gas detector for detecting hydrogen gas passing through the drain valve is provided, and when the drain valve is closed,
Alternatively, when the drain valve is opened and both the hydrogen gas inlet valve and the hydrogen gas outlet valve are closed and the second hydrogen gas detector detects hydrogen gas, the control means stops the drying operation and the regenerating operation. I am trying.
【００１２】請求項４の発明は、請求項１乃至請求項３
の発明において、制御手段は、乾燥筒の再生運転の指令
を受けると、水素入口弁と水素出口弁とを閉して乾燥筒
への水素ガスの循環を停止し、この状態で真空引き弁を
開して真空ポンプで乾燥筒内の真空引きを行い圧力スイ
ッチが真空引きを検出すると加熱器をオンし、一定の時
間経過後に加熱器をオフして真空引き弁を閉し、その後
にドレン弁を開して乾燥筒内で発生したドレン水を排水
し、ドレン水の排水が終了するとドレン弁を閉し真空引
き弁を開して真空ポンプで乾燥筒を真空状態にし、この
真空状態で真空引き弁を閉し水素入口弁と水素出口弁と
を開して乾燥筒に水素ガスを循環させ乾燥運転に戻るよ
うに制御するようにしたものである。The invention of claim 4 is the invention of claims 1 to 3.
In the invention of (1), the control means closes the hydrogen inlet valve and the hydrogen outlet valve to stop the circulation of the hydrogen gas to the drying cylinder when receiving the command for the regeneration operation of the drying cylinder, and in this state, the vacuum suction valve is turned on. Open and vacuum the drying cylinder with the vacuum pump.When the pressure switch detects vacuum, the heater is turned on, after a certain period of time the heater is turned off and the vacuum valve is closed, and then the drain valve. To drain the drain water generated in the drying cylinder, and when drain water is drained, close the drain valve and open the vacuum valve to vacuum the drying cylinder with a vacuum pump. The pulling valve is closed, the hydrogen inlet valve and the hydrogen outlet valve are opened, and hydrogen gas is circulated through the drying cylinder to control the drying operation.
【００１３】請求項５の発明は、真空引き弁及びドレン
弁を真空引き兼ドレン弁とし、水素ガス入口弁、水素ガ
ス出口弁、真空引き兼ドレン弁をそれぞれ遠隔操作可能
な弁で構成し、ドレンタンクを真空ポンプより高所に配
置し、乾燥筒が真空引きされた状態であるか否かを検出
する圧力スイッチと、乾燥筒が加熱されている状態であ
るか否かを検出する温度スイッチと、再生運転が開始さ
れたときは圧力スイッチ及び温度スイッチの状態に基づ
いて遠隔操作可能な弁で構成された水素ガス入口弁、水
素ガス出口弁、真空引き兼ドレン弁を開閉操作するため
の制御手段とを備えている。According to a fifth aspect of the present invention, the vacuum evacuation valve and the drain valve are vacuum evacuation / drain valves, and the hydrogen gas inlet valve, the hydrogen gas outlet valve, and the evacuation / drain valve are remote control valves. The drain tank is located higher than the vacuum pump, and the pressure switch detects whether the drying cylinder is evacuated, and the temperature switch that detects whether the drying cylinder is heated. And for opening and closing the hydrogen gas inlet valve, the hydrogen gas outlet valve, and the vacuuming / drain valve, which consist of valves that can be remotely operated based on the state of the pressure switch and the temperature switch when the regeneration operation is started. And a control means.
【００１４】請求項６の発明は、請求項５の発明におい
て、真空引き兼ドレン弁を通過する水素ガスを検出する
第１の水素ガス検知器を設け、真空引き兼ドレン弁が閉
のとき、又は真空引き兼ドレン弁が開で水素ガス入口弁
及び水素ガス出口弁の双方が閉のときに、第１の水素ガ
ス検知器が水素ガスを検出したときは、制御手段は乾燥
運転及び再生運転を停止するようにしたものである。According to a sixth aspect of the present invention, in the fifth aspect of the invention, a first hydrogen gas detector for detecting hydrogen gas passing through the vacuum / drain valve is provided, and when the vacuum / drain valve is closed, Alternatively, when the vacuum and drain valve is open and both the hydrogen gas inlet valve and the hydrogen gas outlet valve are closed and the first hydrogen gas detector detects hydrogen gas, the control means performs the drying operation and the regenerating operation. Is to stop.
【００１５】請求項７の発明は、請求項５又は請求項６
の発明において、制御手段は、乾燥筒の再生運転の指令
を受けると、水素入口弁と水素出口弁とを閉して乾燥筒
への水素ガスの循環を停止し、この状態で真空引き兼ド
レン弁を開して真空ポンプで乾燥筒内の真空引きを行い
圧力スイッチが真空引きを検出すると加熱器をオンし、
この状態で真空引き兼用ドレン弁から乾燥筒内で発生し
たドレン水を排水し、一定の時間経過後に加熱器をオフ
して真空引き兼ドレン弁を閉し、水素入口弁と水素出口
弁とを開して乾燥筒に水素ガスを循環させ乾燥運転に戻
るように制御するようにしたものである。The invention of claim 7 is claim 5 or claim 6.
In the invention, the control means closes the hydrogen inlet valve and the hydrogen outlet valve to stop the circulation of the hydrogen gas to the drying cylinder when receiving the command for the regeneration operation of the drying cylinder, and in this state, the vacuum evacuation / drainage is performed. Open the valve to evacuate the drying cylinder with a vacuum pump, turn on the heater when the pressure switch detects vacuuming,
In this state, drain water generated in the drying cylinder is drained from the vacuum drain valve, the heater is turned off after a certain period of time, the vacuum drain valve is closed, and the hydrogen inlet valve and hydrogen outlet valve are closed. It is configured so that it is opened and hydrogen gas is circulated through the drying cylinder to control the drying operation.
【００１６】請求項８の発明は、請求項１乃至請求項７
の発明において、乾燥筒の乾燥剤が吸湿したことを検出
する吸湿検出器を設け、この吸湿検出器が動作したとき
は、制御手段は、再生運転を開始するようにしたもので
ある。[0016] The invention of claim 8 is from claim 1 to claim 7.
In the invention described above, a moisture absorption detector for detecting that the desiccant in the drying cylinder has absorbed moisture is provided, and when the moisture absorption detector operates, the control means starts the regenerating operation.
【００１７】請求項９の発明は、請求項８の吸湿検出器
は、乾燥剤の色を識別する色識別スイッチとしたもので
ある。According to a ninth aspect of the present invention, the moisture absorption detector of the eighth aspect is a color identification switch for identifying the color of the desiccant.
【００１８】請求項１０の発明は、請求項８の吸湿検出
器は、水素ガスの湿度を検出する湿度スイッチとしたも
のである。According to a tenth aspect of the present invention, the moisture absorption detector of the eighth aspect is a humidity switch for detecting the humidity of hydrogen gas.
【００１９】[0019]
【作用】請求項１の発明においては、運転員により再生
運転の指令が出力されたときは、制御手段は、圧力スイ
ッチ及び温度スイッチの状態に基づいて、遠隔操作可能
な弁で構成された水素ガス入口弁、水素ガス出口弁、真
空引き弁、及びドレン弁を自動で開閉操作する。According to the invention of claim 1, when the operator outputs a command for the regeneration operation, the control means is a hydrogen valve which can be operated remotely based on the states of the pressure switch and the temperature switch. The gas inlet valve, hydrogen gas outlet valve, vacuum suction valve, and drain valve are automatically opened and closed.
【００２０】請求項２の発明においては、請求項１の発
明の作用に加え、制御手段は、真空引き弁が閉のとき、
又は真空引き弁が開で水素ガス入口弁及び水素ガス出口
弁の双方が閉のときに、第１の水素ガス検知器が水素ガ
スを検出したときは、乾燥運転及び再生運転を停止す
る。これにより、水素ガス入口弁、水素ガス出口弁、真
空引き弁に水素ガス漏洩があるときには、水素ガス乾燥
装置が運転されることはない。According to the invention of claim 2, in addition to the function of the invention of claim 1, the control means is such that when the vacuum suction valve is closed,
Alternatively, when the vacuum valve is open and both the hydrogen gas inlet valve and the hydrogen gas outlet valve are closed and the first hydrogen gas detector detects hydrogen gas, the drying operation and the regeneration operation are stopped. As a result, the hydrogen gas dryer is not operated when there is a hydrogen gas leak in the hydrogen gas inlet valve, the hydrogen gas outlet valve, or the vacuum valve.
【００２１】請求項３の発明においては、請求項１又は
請求項２の発明の作用に加え、制御手段は、ドレン弁が
閉のとき、又はドレン弁が開で水素ガス入口弁及び水素
ガス出口弁の双方が閉のときに、第２の水素ガス検知器
が水素ガスを検出したときは、乾燥運転及び再生運転を
停止する。これにより、水素ガス入口弁、水素ガス出口
弁、ドレン弁に水素ガス漏洩があるときには、水素ガス
乾燥装置が運転されることはない。In the invention of claim 3, in addition to the operation of the invention of claim 1 or 2, the control means is such that the hydrogen gas inlet valve and the hydrogen gas outlet are provided when the drain valve is closed or when the drain valve is open. When both the valves are closed and the second hydrogen gas detector detects hydrogen gas, the drying operation and the regenerating operation are stopped. As a result, when there is a hydrogen gas leak in the hydrogen gas inlet valve, the hydrogen gas outlet valve, and the drain valve, the hydrogen gas drying device is not operated.
【００２２】請求項４の発明においては、請求項１乃至
請求項３の発明の作用に加え、制御手段は、乾燥筒の再
生運転の指令を受けると、乾燥筒への水素ガスの循環を
停止し、この状態で乾燥筒内の真空引きを行い真空引き
が完了すると加熱を開始する。そして、一定の時間経過
後に加熱を終了し、乾燥筒内で発生したドレン水を排水
する。ドレン水の排水が終了すると乾燥筒を真空状態に
し、この真空状態で水素ガスを乾燥筒に供給し乾燥運転
に戻るように制御する。In the fourth aspect of the present invention, in addition to the functions of the first to third aspects of the invention, the control means stops the circulation of the hydrogen gas to the drying cylinder when receiving the command for the regeneration operation of the drying cylinder. Then, in this state, the inside of the drying cylinder is evacuated, and when the evacuation is completed, heating is started. Then, after a lapse of a certain period of time, the heating is finished and the drain water generated in the drying cylinder is drained. When the drain water is drained, the drying cylinder is placed in a vacuum state, and in this vacuum state, hydrogen gas is supplied to the drying cylinder and control is performed to return to the drying operation.
【００２３】請求項５の発明においては、制御手段は、
再生運転が開始されたときは、圧力スイッチ及び温度ス
イッチの状態に基づいて遠隔操作可能な弁で構成された
水素ガス入口弁、水素ガス出口弁、真空引き兼ドレン弁
を開閉操作する。ドレンタンクを真空ポンプより高所に
配置されているので、真空引き兼ドレン弁により真空引
き及びドレン水の排水の双方を支障なく行うことができ
る。In the invention of claim 5, the control means comprises:
When the regeneration operation is started, the hydrogen gas inlet valve, the hydrogen gas outlet valve, and the vacuum / drain valve, which are valves that can be remotely controlled based on the states of the pressure switch and the temperature switch, are opened and closed. Since the drain tank is arranged at a higher place than the vacuum pump, both the vacuum evacuation and the drain valve can perform both evacuation and drain water drain without any trouble.
【００２４】請求項６の発明においては、請求項５の発
明の作用に加え、制御手段は、真空引き兼ドレン弁が閉
のとき、又は真空引き兼ドレン弁が開で水素ガス入口弁
及び水素ガス出口弁の双方が閉のときに、第１の水素ガ
ス検知器が水素ガスを検出したときは、乾燥運転及び再
生運転を停止する。In the sixth aspect of the invention, in addition to the function of the fifth aspect of the invention, the control means controls the hydrogen gas inlet valve and the hydrogen when the evacuation and drain valve is closed or when the evacuation and drain valve is open. When both the gas outlet valves are closed and the first hydrogen gas detector detects hydrogen gas, the drying operation and the regeneration operation are stopped.
【００２５】請求項７の発明においては、請求項５又は
請求項６の発明の作用に加え、制御手段は、乾燥筒の再
生運転の指令を受けると、乾燥筒への水素ガスの循環を
停止し、この状態で乾燥筒内の真空引きを行い真空引き
が完了すると加熱を開始し、この状態で乾燥筒内で発生
したドレン水を排水し、一定の時間経過後に加熱を終了
し、その後に乾燥筒に水素ガスを供給して乾燥運転に戻
るように制御する。According to the invention of claim 7, in addition to the operation of the invention of claim 5 or 6, the control means stops the circulation of hydrogen gas to the drying cylinder upon receiving a command for the regeneration operation of the drying cylinder. Then, in this state, the inside of the drying cylinder is evacuated and heating is started when the evacuation is completed.In this state, the drain water generated in the drying cylinder is drained, and after a certain period of time, the heating is finished, and then The hydrogen gas is supplied to the drying cylinder to control the drying operation.
【００２６】請求項８の発明においては、請求項１乃至
請求項７の発明の作用に加え、吸湿検出器が動作したと
きに、制御手段は、再生運転を自動的に開始する。In the eighth aspect of the invention, in addition to the effects of the first to seventh aspects of the invention, the control means automatically starts the regenerating operation when the moisture absorption detector operates.
【００２７】請求項９の発明においては、請求項８の作
用に加え、乾燥剤が吸湿して色が変化したことを、吸湿
検出器としての色識別スイッチで識別する。According to the ninth aspect of the invention, in addition to the action of the eighth aspect, the fact that the desiccant absorbs moisture and changes in color is identified by a color identification switch as a moisture absorption detector.
【００２８】請求項１０の発明においては、請求項８の
作用に加え、水素ガスの湿度を吸湿検出器としての湿度
スイッチで検出する。According to the tenth aspect of the invention, in addition to the action of the eighth aspect, the humidity of hydrogen gas is detected by a humidity switch as a moisture absorption detector.
【００２９】[0029]
【実施例】以下、本発明の実施例を説明する。本発明の
第１の実施例を図１に示す。この第１の実施例は、水素
ガス入口弁５、水素ガス出口弁６、真空引き弁７、及び
ドレン弁８をそれぞれ遠隔操作可能な弁で構成し、乾燥
筒１が真空引きされた状態であるか否かを検出する圧力
スイッチ１７と、乾燥筒１が加熱されている状態である
か否かを検出する温度スイッチ１８とを設け、制御手段
１６は、再生運転が開始されたときは圧力スイッチ１７
及び温度スイッチ１８の状態に基づいて遠隔操作可能な
弁で構成された水素ガス入口弁５、水素ガス出口弁６、
真空引き弁７、及びドレン弁８を開閉操作するようにし
たものである。そして、制御手段１６は、各種演算を行
う演算手段１９と運転員が再生運転の開始指令を与える
ための操作スイッチ２０とを備えている。その他の構成
は図１２に示した従来例と同じであるので、同一要素に
は、同一符号を付し、その説明を省略する。Embodiments of the present invention will be described below. A first embodiment of the present invention is shown in FIG. In the first embodiment, the hydrogen gas inlet valve 5, the hydrogen gas outlet valve 6, the evacuation valve 7, and the drain valve 8 are remote controllable valves, and the drying cylinder 1 is evacuated. A pressure switch 17 for detecting whether or not the temperature is present and a temperature switch 18 for detecting whether or not the drying cylinder 1 is in a heated state are provided, and the control means 16 controls the pressure when the regeneration operation is started. Switch 17
And a hydrogen gas inlet valve 5 and a hydrogen gas outlet valve 6, which are valves that can be remotely controlled based on the state of the temperature switch 18,
The vacuum evacuation valve 7 and the drain valve 8 are opened and closed. The control means 16 is provided with a calculation means 19 for performing various calculations and an operation switch 20 for the operator to give a start command for the regeneration operation. Since other configurations are the same as those of the conventional example shown in FIG. 12, the same reference numerals are given to the same elements, and the description thereof will be omitted.
【００３０】遠隔操作可能に構成された水素ガス入口弁
５、水素ガス出口弁６、真空引き弁７、及びドレン弁８
の開閉制御と真空ポンプ１３の入り切り制御、加熱器３
の入り切り制御は、制御手段１６の操作スイッチ２０を
操作した後、制御手段１６内の演算手段１９にて行われ
る。A hydrogen gas inlet valve 5, a hydrogen gas outlet valve 6, a vacuum suction valve 7, and a drain valve 8 which are configured to be remotely operable.
Open / close control, vacuum pump 13 opening / closing control, heater 3
The on / off control of is performed by the calculation means 19 in the control means 16 after operating the operation switch 20 of the control means 16.
【００３１】圧力スイッチ１７は、乾燥筒１内が真空状
態になったか否かを検出するもので、所定の微小圧力以
上でオンする。したがって、圧力スイッチ１７がオンし
ているときは真空状態でないことを示している。一方、
温度スイッチ１８は乾燥筒１内が加熱運転にあるか否か
をを判断するもので、所定の設定温度以上でオンする。
所定の設定温度としては、周囲温度以上で、回転機９内
の水素ガス温度以下の範囲の温度が設定される。したが
って、温度スイッチ１８がオンしているときは加熱器３
での加熱運転であることを示している。The pressure switch 17 detects whether or not the inside of the drying cylinder 1 is in a vacuum state, and is turned on at a predetermined micro pressure or more. Therefore, when the pressure switch 17 is turned on, it is not in a vacuum state. on the other hand,
The temperature switch 18 determines whether or not the inside of the drying cylinder 1 is in a heating operation, and is turned on at a predetermined set temperature or higher.
As the predetermined set temperature, a temperature in the range of the ambient temperature or higher and the hydrogen gas temperature in the rotating machine 9 or lower is set. Therefore, when the temperature switch 18 is on, the heater 3
It indicates that it is a heating operation in.
【００３２】次に、第１の実施例の運転手順を説明す
る。図２は、各運転モードに移行するための条件Ｓ０〜
Ｓ１１と、これらが成立するための各々の弁、すなわ
ち、水素ガス入口弁５、水素ガス出口弁６、真空引き弁
７、及びドレン弁８と、各々のスイッチ、すなわち、圧
力スイッチ１７、温度スイッチ１８、操作スイッチ２０
の状態を横列に示している。図中の○印は弁の開状態、
×印は弁の閉状態、○印の中に×印を記載したものは開
状態の履歴がある弁の閉状態、＋印はスイッチのオン状
態、−印はスイッチのオフ状態をそれぞれ示す。Next, the operating procedure of the first embodiment will be described. FIG. 2 shows conditions S0 to transition to each operation mode.
S11, respective valves for realizing these, that is, the hydrogen gas inlet valve 5, the hydrogen gas outlet valve 6, the vacuum evacuation valve 7, and the drain valve 8, and the respective switches, that is, the pressure switch 17, the temperature switch. 18, operation switch 20
The states are shown in the rows. The circles in the figure indicate the open state of the valve,
The X mark indicates the closed state of the valve, the X mark inside the O mark indicates the closed state of the valve that has a history of the open state, the + mark indicates the switch on state, and the − mark indicates the switch off state.
【００３３】水素ガスの乾燥運転中は、条件Ｓ０が成立
しており、水素ガス入口弁５は開、水素ガス出口弁６は
開、真空引き弁７は閉、ドレン弁８は閉、圧力スイッチ
１７はオン、温度スイッチ１８はオフ、操作スイッチ２
０はオフしている。During the hydrogen gas drying operation, the condition S0 is satisfied, the hydrogen gas inlet valve 5 is opened, the hydrogen gas outlet valve 6 is opened, the vacuum suction valve 7 is closed, the drain valve 8 is closed, and the pressure switch. 17 is on, temperature switch 18 is off, operation switch 2
0 is off.
【００３４】この状態で、運転員は乾燥筒１にある点検
窓１２により乾燥剤２の変化を見て、乾燥剤２が吸湿し
ており再生運転が必要と判断すると、制御手段１６の操
作スイッチ２０をオンする。これにより、再生運転開始
条件Ｓ１が成立するので、制御手段１６の演算手段１９
は、水素ガス入口弁５水素ガス出口弁６を閉じる。水素
ガス入口弁５水素ガス出口弁６を閉じることにより、第
１の真空引き開始条件Ｓ２が成立するので、演算手段１
９は真空引き弁７を開き、真空ポンプ１３を起動する。
こうして乾燥筒１内が真空に引かれ、圧力スイッチ１７
がオフする。In this state, when the operator sees the change of the desiccant 2 through the inspection window 12 in the drying cylinder 1 and determines that the desiccant 2 has absorbed moisture and the regeneration operation is required, the operation switch of the control means 16 is operated. Turn on 20. As a result, the regeneration operation start condition S1 is satisfied, and the calculation means 19 of the control means 16 is therefore satisfied.
Closes the hydrogen gas inlet valve 5 and the hydrogen gas outlet valve 6. By closing the hydrogen gas inlet valve 5 and the hydrogen gas outlet valve 6, the first vacuum evacuation start condition S2 is satisfied.
9 opens the vacuum suction valve 7 and starts the vacuum pump 13.
In this way, the inside of the drying cylinder 1 is evacuated, and the pressure switch 17
Turns off.
【００３５】水素ガス入口弁５が閉、水素ガス出口弁６
が閉、真空引き弁７が開、ドレン弁８が閉、圧力スイッ
チ１７がオフ、温度スイッチ１８がオフで、加熱条件Ｓ
３が成立し、演算手段１９は加熱器３のスイッチをオン
とするので、加熱運転となる。加熱器３は、乾燥剤２を
乾燥する適当な温度帯になるように、サーモスタットに
よりオンオフ制御を行っている。加熱運転中に温度スイ
ッチ１８はオンとなり、真空引き終了条件Ｓ４が成立す
るが、乾燥剤２を十分に乾燥させるため、演算手段１９
で４〜８時間に設定されたタイマーにより真空引きを継
続する。Hydrogen gas inlet valve 5 is closed, hydrogen gas outlet valve 6
Is closed, the vacuum suction valve 7 is opened, the drain valve 8 is closed, the pressure switch 17 is off, the temperature switch 18 is off, and the heating condition S
3 is satisfied and the calculation means 19 turns on the switch of the heater 3, so that the heating operation is performed. The heater 3 is on / off controlled by a thermostat so as to reach an appropriate temperature range for drying the desiccant 2. During the heating operation, the temperature switch 18 is turned on, and the evacuation condition S4 is satisfied. However, since the desiccant 2 is sufficiently dried, the calculation means 19 is used.
Continue vacuuming with the timer set to 4 to 8 hours.
【００３６】そして、タイマーのカウント終了後、真空
引きの終了となり、演算手段１９は加熱器３のスイッチ
をオフ、真空ポンプ１３を停止とし、続けて真空引き弁
７を閉とする。これにより、水素ガス入口弁５が閉、水
素ガス出口弁６が閉、真空引き弁７が閉、ドレン弁８が
閉、圧力スイッチがオフ、温度スイッチ１８がオンとな
り、真空破壊条件Ｓ５が成立する。演算手段１９はドレ
ン弁８を開とするので、乾燥筒１内に空気が入り圧力ス
イッチ１７はオンとなる。また、このとき、ドレンタン
ク４に溜まった水分が排出される。この状態で、放熱条
件Ｓ６が成立し、乾燥筒１内の放熱が行われ、乾燥筒１
内の温度は下がり、温度スイッチ１８がオフして放熱運
転の終了条件Ｓ７が成立する。そして、演算手段１９は
ドレン弁８を閉じ、条件Ｓ８が成立する。Then, after the timer has finished counting, the evacuation ends, and the computing means 19 turns off the switch of the heater 3, stops the vacuum pump 13, and then closes the evacuation valve 7. As a result, the hydrogen gas inlet valve 5 is closed, the hydrogen gas outlet valve 6 is closed, the vacuum drawing valve 7 is closed, the drain valve 8 is closed, the pressure switch is turned off, the temperature switch 18 is turned on, and the vacuum break condition S5 is satisfied. To do. Since the calculation means 19 opens the drain valve 8, air enters the drying cylinder 1 and the pressure switch 17 is turned on. Further, at this time, the water accumulated in the drain tank 4 is discharged. In this state, the heat radiation condition S6 is established, heat is radiated in the drying cylinder 1, and the drying cylinder 1
The internal temperature decreases, the temperature switch 18 is turned off, and the condition S7 for ending the heat radiation operation is satisfied. Then, the calculation means 19 closes the drain valve 8 and the condition S8 is satisfied.
【００３７】この条件Ｓ８、すなわち、水素ガス入口弁
５が閉、水素ガス出口弁６が閉、真空引き弁７が閉、ド
レン弁８が閉、圧力スイッチ１７がオン、温度スイッチ
１８がオフで、第２の真空引きに移行するが、この状態
は、第１の真空引き開始条件と同じであるため、演算手
段１９内にドレン弁８の開閉に履歴を持たせ、ドレン弁
８が一度開いたことを条件として加味し、第２の真空引
き開始条件Ｓ８を成立させる。Under this condition S8, that is, the hydrogen gas inlet valve 5 is closed, the hydrogen gas outlet valve 6 is closed, the vacuum valve 7 is closed, the drain valve 8 is closed, the pressure switch 17 is on, and the temperature switch 18 is off. , The second vacuum evacuation is performed, but this state is the same as the first vacuum evacuation start condition. Therefore, a history of opening and closing of the drain valve 8 is provided in the calculating means 19 so that the drain valve 8 once opens. That is, the second evacuation start condition S8 is satisfied.
【００３８】第２の真空引きの運転により、真空引き弁
７が開、真空ポンプ１３が起動し、乾燥筒１内の空気が
大気放出管１５を通じて排出され、圧力スイッチ１７は
オフする。圧力スイッチ１７のオフにより、第２の真空
引きの終了条件Ｓ９が成立するので、演算手段１９は真
空ポンプ１３を停止し、真空引き弁７を閉じる。By the second evacuation operation, the evacuation valve 7 is opened, the vacuum pump 13 is started, the air in the drying cylinder 1 is exhausted through the atmosphere discharge pipe 15, and the pressure switch 17 is turned off. When the pressure switch 17 is turned off, the second evacuation ending condition S9 is satisfied, so that the computing means 19 stops the vacuum pump 13 and closes the evacuation valve 7.
【００３９】水素ガス入口弁５が閉、水素ガス出口弁６
が閉、真空引き弁７が閉、ドレン弁８が閉、圧力スイッ
チ１７がオフ、温度スイッチ１８がオンにより、水素注
入条件Ｓ１０が成立する。演算手段１９は水素ガス入口
弁５を開くので、圧力スイッチ１７がオンする。Hydrogen gas inlet valve 5 is closed, hydrogen gas outlet valve 6
Is closed, the vacuum suction valve 7 is closed, the drain valve 8 is closed, the pressure switch 17 is off, and the temperature switch 18 is on, so that the hydrogen injection condition S10 is satisfied. Since the calculation means 19 opens the hydrogen gas inlet valve 5, the pressure switch 17 is turned on.
【００４０】水素ガス入口弁５が開、水素ガス出口弁６
が閉、真空引き弁７が閉、ドレン弁８が閉、圧力スイッ
チ１７がオン、温度スイッチ１８がオフにより、再生運
転終了条件Ｓ１１が成立し、演算手段１９は水素ガス出
口弁６を開し再生運転が終了となる。これにより、操作
スイッチ２０がオフ、ドレン弁８が開の履歴をリセット
して、乾燥運転Ｓ０に復帰する。Hydrogen gas inlet valve 5 is open, hydrogen gas outlet valve 6
Is closed, the vacuum suction valve 7 is closed, the drain valve 8 is closed, the pressure switch 17 is turned on, and the temperature switch 18 is turned off, so that the regeneration operation end condition S11 is satisfied, and the calculation means 19 opens the hydrogen gas outlet valve 6. The regeneration operation ends. As a result, the history of the operation switch 20 being turned off and the drain valve 8 being opened is reset, and the drying operation S0 is resumed.
【００４１】このように第１の実施例によれば、水素ガ
ス乾燥装置の制御手段１６の操作スイッチ２０を操作す
るだけで、制御手段１６の演算手段１９により、水素ガ
ス入口弁５、水素ガス出口弁６、真空引き弁７、ドレン
弁８の各弁の開閉、加熱器３、真空ポンプ１３の運転が
シーケンシャルに行われ、乾燥運転から再生運転への移
行が自動的に行われる。したがって、運転員は一つの操
作で、水素ガス乾燥装置の運転を行うことができ、負担
が軽減する。As described above, according to the first embodiment, only by operating the operation switch 20 of the control means 16 of the hydrogen gas drying apparatus, the calculation means 19 of the control means 16 causes the hydrogen gas inlet valve 5 and the hydrogen gas to be discharged. The opening / closing of each of the outlet valve 6, the evacuation valve 7, and the drain valve 8 and the operation of the heater 3 and the vacuum pump 13 are sequentially performed, and the transition from the drying operation to the regeneration operation is automatically performed. Therefore, the operator can operate the hydrogen gas drying device with one operation, and the burden is reduced.
【００４２】この第１の実施例で、真空ポンプ１３の替
わりに水素冷却発電機で使用される密封油装置の真空ポ
ンプを使用しても良い。この場合は、真空ポンプは、常
時運転しているので、制御手段１６の演算手段１９から
の制御は不要である。また、この第１の実施例における
遠隔操作弁のバックアップとして、図３に示すように、
水素ガス入口弁５、水素ガス出口弁６、真空引き弁７、
ドレン弁８の各弁にそれぞれ直列に、手動弁２１を設置
しても良い。In the first embodiment, the vacuum pump 13 may be replaced by a vacuum pump of a sealing oil device used in a hydrogen-cooled generator. In this case, since the vacuum pump is constantly operating, control from the computing means 19 of the control means 16 is unnecessary. Further, as a backup of the remote control valve in the first embodiment, as shown in FIG.
Hydrogen gas inlet valve 5, hydrogen gas outlet valve 6, vacuum evacuation valve 7,
A manual valve 21 may be installed in series with each valve of the drain valve 8.
【００４３】次に、本発明の第２の実施例を図４に示
す。この第２の実施例は、真空引き弁７を通過する水素
ガスを検出する第１の水素ガス検知器２２、及びドレン
弁８を通過する水素ガスを検出する第２の水素ガス検知
器２３を設け、水素ガス入口弁５、水素ガス出口弁６、
真空引き弁７、ドレン弁８の水素ガス漏れを監視し、こ
れらの各弁に水素漏れがあるときは、水素ガス乾燥装置
の運転を停止するようにしたものである。Next, a second embodiment of the present invention is shown in FIG. In the second embodiment, a first hydrogen gas detector 22 for detecting hydrogen gas passing through the vacuum valve 7 and a second hydrogen gas detector 23 for detecting hydrogen gas passing through the drain valve 8 are provided. Provided, hydrogen gas inlet valve 5, hydrogen gas outlet valve 6,
The hydrogen gas leakage of the vacuum suction valve 7 and the drain valve 8 is monitored, and when there is hydrogen leakage in each of these valves, the operation of the hydrogen gas drying device is stopped.
【００４４】すなわち、真空引き弁７が閉のとき、又は
真空引き弁７が開で水素ガス入口弁５及び水素ガス出口
弁６の双方が閉のときに、第１の水素ガス検知器２２が
水素ガスを検出したときは、制御手段１６は乾燥運転及
び再生運転を停止する。同様に、ドレン弁８が閉のと
き、又はドレン弁８が開で水素ガス入口弁５及び水素ガ
ス出口弁６の双方が閉のときに、第２の水素ガス検知器
２３が水素ガスを検出したときは、制御手段１６は乾燥
運転及び再生運転を停止する。その他の構成は図１に示
した第１の実施例と同じであるので、同一要素には同一
符号を付しその説明は省略する。That is, when the evacuation valve 7 is closed, or when the evacuation valve 7 is open and both the hydrogen gas inlet valve 5 and the hydrogen gas outlet valve 6 are closed, the first hydrogen gas detector 22 operates. When hydrogen gas is detected, the control means 16 stops the drying operation and the regenerating operation. Similarly, when the drain valve 8 is closed, or when the drain valve 8 is open and both the hydrogen gas inlet valve 5 and the hydrogen gas outlet valve 6 are closed, the second hydrogen gas detector 23 detects hydrogen gas. If so, the control means 16 stops the drying operation and the regenerating operation. Since the other structure is the same as that of the first embodiment shown in FIG. 1, the same elements are designated by the same reference numerals and the description thereof will be omitted.
【００４５】図４において、この第２の実施例では、水
素ガス入口弁５、水素ガス出口弁６、真空引き弁７、ド
レン弁８の各弁において、開閉不良が起こり、外部に水
素ガスが漏洩する危険を防止するため、水素ガス検知器
２２を真空引き弁７と真空ポンプ１３との間に、水素ガ
ス検知器２３をドレン弁８の出口側に設置する。In FIG. 4, in the second embodiment, the hydrogen gas inlet valve 5, the hydrogen gas outlet valve 6, the evacuation valve 7, and the drain valve 8 are opened and closed poorly, and hydrogen gas is leaked to the outside. In order to prevent the risk of leakage, the hydrogen gas detector 22 is installed between the evacuation valve 7 and the vacuum pump 13, and the hydrogen gas detector 23 is installed on the outlet side of the drain valve 8.
【００４６】図５に制御手段１６の演算手段１９内での
水素ガス漏洩の判断ロジックを示す。図５に示す通り、
真空引き弁７が閉、又は真空引き弁７が開で水素ガス入
口弁５が閉かつ水素ガス出口弁６が閉であって、水素ガ
ス検知器２２が動作した場合に、水素ガスの漏洩と判断
する。この場合、真空引き弁７が閉、又は真空引き弁７
が開で水素ガス入口弁５が閉かつ水素ガス出口弁６が閉
以外の状態では、水素ガス検知器２２はロックされてい
る。FIG. 5 shows a logic for judging hydrogen gas leakage in the arithmetic means 19 of the control means 16. As shown in FIG.
When the vacuum evacuation valve 7 is closed, or the vacuum evacuation valve 7 is open and the hydrogen gas inlet valve 5 is closed and the hydrogen gas outlet valve 6 is closed and the hydrogen gas detector 22 operates, the leakage of hydrogen gas is detected. to decide. In this case, the vacuum suction valve 7 is closed or the vacuum suction valve 7 is closed.
Is open and the hydrogen gas inlet valve 5 is closed and the hydrogen gas outlet valve 6 is not closed, the hydrogen gas detector 22 is locked.
【００４７】同様に、ドレン弁８が閉、又はドレン弁８
が開で水素ガス入口弁５が閉かつ水素ガス出口弁６が閉
であって、水素ガス検知器２３が動作した場合に、水素
ガスの漏洩と判断する。この場合、ドレン弁８が閉、又
はドレン弁８が開で水素ガス入口弁５が閉かつ水素ガス
出口弁６が閉以外の状態では、水素ガス検知器２３はロ
ックされている。Similarly, the drain valve 8 is closed or the drain valve 8 is
Is open, the hydrogen gas inlet valve 5 is closed, the hydrogen gas outlet valve 6 is closed, and the hydrogen gas detector 23 operates, it is determined that the hydrogen gas is leaking. In this case, the hydrogen gas detector 23 is locked unless the drain valve 8 is closed, or the drain valve 8 is open and the hydrogen gas inlet valve 5 is closed and the hydrogen gas outlet valve 6 is not closed.
【００４８】水素ガス漏洩と判断した場合、いかなる運
転中であっても、水素ガス入口弁５、水素ガス出口弁
６、真空引き弁７、ドレン弁８を閉じ、水素ガス乾燥装
置の運転を停止する。When it is judged that hydrogen gas has leaked, the hydrogen gas inlet valve 5, the hydrogen gas outlet valve 6, the vacuum suction valve 7 and the drain valve 8 are closed and the operation of the hydrogen gas drying device is stopped during any operation. To do.
【００４９】このように第２の実施例によれば、水素ガ
ス検知器２２、２３を設けることにより、運転員がその
場にいないときに水素ガス入口弁５、水素ガス出口弁
６、真空引き弁７、ドレン弁８が故障した場合でも、外
部へ水素ガスの漏洩を防ぐことが可能となる。また、水
素ガス漏洩を検知した場合、制御手段１６又は中央操作
室等に設置されている制御盤に警報を表示することも可
能である。As described above, according to the second embodiment, by providing the hydrogen gas detectors 22 and 23, the hydrogen gas inlet valve 5, the hydrogen gas outlet valve 6 and the vacuum evacuation can be performed when the operator is not present. Even if the valve 7 and the drain valve 8 fail, it is possible to prevent the leakage of hydrogen gas to the outside. Further, when hydrogen gas leakage is detected, it is possible to display an alarm on the control means 16 or a control panel installed in the central operation room or the like.
【００５０】次に、本発明の第３の実施例を図６に示
す。この第３の実施例は、図１に示した第１の実施例に
対し、真空引き弁７及びドレン弁８を真空引き兼ドレン
弁２４とし、この真空引き兼ドレン弁２４を遠隔操作可
能な弁で構成すると共に、ドレンタンク４を真空ポンプ
１３より高所に配置し、制御手段１６は、再生運転が開
始されたときは圧力スイッチ１７及び温度スイッチ１８
の状態に基づいて、水素ガス入口弁５、水素ガス出口弁
６、真空引き兼ドレン弁２４を開閉操作するようにした
ものである。その他の構成は、図１に示した第１の実施
例と同様であるので、同一要素には同一符号を付し、そ
の説明は省略する。Next, FIG. 6 shows a third embodiment of the present invention. The third embodiment differs from the first embodiment shown in FIG. 1 in that the vacuum evacuation valve 7 and the drain valve 8 are vacuum evacuation / drain valves 24, and the vacuum evacuation / drain valve 24 can be operated remotely. The drain tank 4 is composed of a valve, and the drain tank 4 is arranged at a higher position than the vacuum pump 13. The control means 16 controls the pressure switch 17 and the temperature switch 18 when the regeneration operation is started.
The hydrogen gas inlet valve 5, the hydrogen gas outlet valve 6, and the evacuation / drain valve 24 are opened / closed based on the above state. Since other configurations are the same as those of the first embodiment shown in FIG. 1, the same reference numerals are given to the same elements, and the description thereof will be omitted.
【００５１】すなわち、この第３の実施例は、真空引き
配管１４と真空引き弁７を省略し、ドレンタンク４に真
空引き兼ドレン配管２５を付け、これに遠隔操作可能な
真空引き弁兼用ドレン弁２４を通じて真空ポンプ１３に
繋げている。また、図７に示すように、ドレンタンク４
が真空ポンプ１３よりも高所に位置するように配置し、
真空引き兼ドレン配管２５には適当な勾配を設けてい
る。水素ガス乾燥装置の乾燥筒１は架台２６に搭載さ
れ、その下部にドレンタンク４及び真空引き弁兼用ドレ
ン弁２４を配置して、勾配を付けた真空引き兼ドレン配
管２５にて真空ポンプ１３に接続されている。That is, in the third embodiment, the vacuum evacuation pipe 14 and the evacuation valve 7 are omitted, and the drain tank 4 is provided with the evacuation / drain pipe 25. It is connected to the vacuum pump 13 through a valve 24. Further, as shown in FIG. 7, the drain tank 4
Is located higher than the vacuum pump 13,
The evacuation / drain pipe 25 is provided with an appropriate gradient. The drying cylinder 1 of the hydrogen gas drying device is mounted on a pedestal 26, and a drain tank 4 and a drain valve 24 serving also as a vacuum suction valve are arranged below the drying cylinder 1, and a vacuum pump 13 is provided to the vacuum pump 13 through a graded vacuum suction and drain pipe 25. It is connected.
【００５２】次に、この第３の実施例の水素ガス乾燥装
置の運転手順を説明する。図８は、各運転モードに移行
するための条件Ｓ０、Ｓ１、Ｓ２１、Ｓ３、Ｓ４１、Ｓ
１２、Ｓ７１と、これらが成立するための各弁の状態、
すなわち水素ガス入口弁５、水素ガス出口弁６、真空引
き兼ドレン弁２４の状態と、各スイッチの状態、すなわ
ち、圧力スイッチ１７、温度スイッチ１８、操作スイッ
チ２０の状態を横列に示している。図中の○印は弁の開
状態、×印は弁の閉状態、＋印はスイッチのオン状態、
−印はスイッチのオフ状態をそれぞれ示す。Next, the operating procedure of the hydrogen gas drying apparatus of the third embodiment will be described. FIG. 8 shows conditions S0, S1, S21, S3, S41, S for shifting to each operation mode.
12, S71 and the state of each valve for realizing these,
That is, the states of the hydrogen gas inlet valve 5, the hydrogen gas outlet valve 6, the evacuation / drain valve 24, and the states of the respective switches, that is, the states of the pressure switch 17, the temperature switch 18, and the operation switch 20 are shown in rows. In the figure, ○ indicates the valve is open, × indicates the valve is closed, + indicates the switch is on,
The-marks indicate the off states of the switches.
【００５３】水素ガスの乾燥運転中は、条件Ｓ０が成立
しており、水素ガス入口弁５は開、水素ガス出口弁６は
開、真空引き兼ドレン弁２４は閉、圧力スイッチ１７は
オン、温度スイッチはオフ、操作スイッチ２２はオフし
ている。この状態で、運転員は、乾燥筒１にある点検窓
１２により、乾燥剤２の変化を見て乾燥剤２の再生運転
が必要であると判断すると、制御手段１６の操作スイッ
チ２０をオンする。これにより、再生運転開始条件Ｓ１
が成立し、制御手段１６の演算手段１９は、水素ガス入
口弁５、水素ガス出口弁６を閉じる。During the hydrogen gas drying operation, the condition S0 is satisfied, the hydrogen gas inlet valve 5 is opened, the hydrogen gas outlet valve 6 is opened, the vacuum / drain valve 24 is closed, and the pressure switch 17 is turned on. The temperature switch is off and the operation switch 22 is off. In this state, the operator turns on the operation switch 20 of the control means 16 when judging that the regenerating operation of the desiccant 2 is necessary by looking at the change of the desiccant 2 through the inspection window 12 in the drying cylinder 1. . As a result, the regeneration operation start condition S1
Then, the calculation means 19 of the control means 16 closes the hydrogen gas inlet valve 5 and the hydrogen gas outlet valve 6.
【００５４】そして、真空引き開始条件Ｓ２１が成立し
て、制御手段１６の演算手段１９は、真空引き兼ドレン
弁２４を開き、真空ポンプ１３を起動する。これにより
乾燥筒１内が真空に引かれ、圧力スイッチ１７がオフす
る。このとき、ドレンタンク４に溜まっていた水は、真
空引き兼ドレン配管２５を通じ、真空ポンプ１３で引か
れ大気放出管１５により大気に捨てられる。Then, the evacuation start condition S21 is satisfied, and the computing means 19 of the control means 16 opens the evacuation / drain valve 24 and activates the vacuum pump 13. As a result, the inside of the drying cylinder 1 is evacuated and the pressure switch 17 is turned off. At this time, the water accumulated in the drain tank 4 is drawn by the vacuum pump 13 through the vacuum / drain pipe 25 and is discharged to the atmosphere by the atmosphere discharge pipe 15.
【００５５】次に、水素ガス入口弁５が閉、水素ガス出
口弁６が閉、真空引き兼ドレン弁２４が開、圧力スイッ
チ１７がオフ、温度スイッチ１８がオフで、加熱条件Ｓ
３が成立しするので、演算手段１９は加熱器３のスイッ
チをオンとし、加熱運転となる。加熱器３は、乾燥剤２
を乾燥する適当な温度帯になるように、サーモスタット
によりオンオフ制御を行っている。Next, the hydrogen gas inlet valve 5 is closed, the hydrogen gas outlet valve 6 is closed, the evacuation / drain valve 24 is opened, the pressure switch 17 is off, the temperature switch 18 is off, and the heating condition S
Since the condition 3 is satisfied, the calculation means 19 turns on the switch of the heater 3 to start the heating operation. Heater 3 is desiccant 2
The on / off control is performed by a thermostat so that the temperature is appropriate for drying.
【００５６】加熱運転中に温度スイッチ１８はオンとな
り、真空引き終了条件Ｓ４１が成立するが、乾燥剤２を
十分に乾燥させるため、演算手段１９で４〜８時間に設
定されたタイマーにより真空引きを継続する。タイマー
のカウント終了後、真空引きが終了となり、演算手段１
９は加熱器３のスイッチをオフ、真空ポンプ１３を停止
し、続けて真空引き兼ドレン弁２４を閉とする。During the heating operation, the temperature switch 18 is turned on, and the evacuation completion condition S41 is satisfied. However, in order to dry the desiccant 2 sufficiently, the evacuation is performed by the timer set to 4 to 8 hours by the computing means 19. To continue. After the count of the timer is completed, the evacuation is completed and the calculation means 1
At 9, the heater 3 is turned off, the vacuum pump 13 is stopped, and then the vacuuming / drain valve 24 is closed.
【００５７】水素ガス入口弁５が閉、水素ガス出口弁６
が閉、真空引き兼ドレン弁２４が閉、圧力スイッチ１７
がオフ、温度スイッチ１８がオンにより、水素ガス注入
条件Ｓ２１が成立する。したがって、演算手段１９は水
素ガス入口弁５を開とし、乾燥筒１内に回転機９内の水
素ガスを注入する。これにより圧力スイッチ１７はオン
となる。この状態で、放熱条件Ｓ６１が成立し、乾燥筒
１内の放熱を水素ガスを媒体として行う。放熱により乾
燥筒１内の温度は下がり、温度スイッチ１８がオフして
放熱運転が終了する。Hydrogen gas inlet valve 5 is closed, hydrogen gas outlet valve 6
Closed, vacuum and drain valve 24 closed, pressure switch 17
Is turned off and the temperature switch 18 is turned on, the hydrogen gas injection condition S21 is satisfied. Therefore, the calculation means 19 opens the hydrogen gas inlet valve 5 and injects the hydrogen gas in the rotary machine 9 into the drying cylinder 1. As a result, the pressure switch 17 is turned on. In this state, the heat radiation condition S61 is satisfied, and the heat radiation in the drying cylinder 1 is performed using hydrogen gas as a medium. Due to the heat radiation, the temperature inside the drying cylinder 1 drops, the temperature switch 18 is turned off, and the heat radiation operation ends.
【００５８】水素ガス入口弁５が開、水素ガス出口弁
６、真空引き兼ドレン弁が閉、圧力スイッチ２４がオ
ン、温度スイッチ２５がオフにより、再生運転終了条件
Ｓ１１が成立し、演算手段１９は水素ガス出口弁６を開
して再生運転を終了させる。そして、操作スイッチ２２
をオフして乾燥運転Ｓ０に復帰する。Since the hydrogen gas inlet valve 5 is opened, the hydrogen gas outlet valve 6 and the vacuum / drain valve are closed, the pressure switch 24 is turned on, and the temperature switch 25 is turned off, the regeneration operation end condition S11 is satisfied, and the calculation means 19 Ends the regeneration operation by opening the hydrogen gas outlet valve 6. And the operation switch 22
Is turned off to return to the drying operation S0.
【００５９】このように第３の実施例によれば、運転員
は、水素ガス乾燥装置の制御手段１６の操作スイッチ２
０を操作するだけで、水素ガス入口弁５、水素ガス出口
弁６、真空引き兼ドレン弁２４の開閉、加熱器３、真空
ポンプ１３の運転がシーケンシャルに行われ、乾燥運転
から再生運転に移行が自動的に行われる。したがって、
運転員は一つの操作で水素ガス乾燥装置の運転を行うこ
とができ、負担が軽減する。また、この第３の実施例で
は、ドレンタンク４を真空ポンプ１３より高所に配置
し、ドレン抜きと真空引きが同時に行われる。また、乾
燥筒１の放熱を水素ガスにて行うことができるので、シ
ステムと運転制御も簡素化される。As described above, according to the third embodiment, the operator operates the operation switch 2 of the control means 16 of the hydrogen gas drying device.
Only by operating 0, the hydrogen gas inlet valve 5, the hydrogen gas outlet valve 6, the opening and closing of the evacuation and drain valve 24, the heater 3, and the vacuum pump 13 are sequentially operated, and the drying operation is changed to the regeneration operation. Is done automatically. Therefore,
The operator can operate the hydrogen gas drying device with one operation, which reduces the burden. In addition, in the third embodiment, the drain tank 4 is arranged at a higher position than the vacuum pump 13, and drain removal and vacuum evacuation are performed at the same time. Further, since heat can be released from the drying cylinder 1 by hydrogen gas, the system and operation control are also simplified.
【００６０】この第３の実施例において、真空ポンプ１
３の替わりに水素冷却発電機で使用される密封油装置の
真空ポンプを使用しても良い。この場合は、真空ポンプ
は、常時運転しているので、制御手段１６からの制御は
不要である。また、第３の実施例における遠隔操作弁の
バックアップとして、図９に示すように手動弁２１ａ、
２１ｂ、２１ｅを設置してもよい。また、第３の実施例
では、乾燥筒１を架台２６を使って高所に設置したが、
真空ポンプが建屋の１階にあった場合、乾燥筒建屋の２
階や３階に設置することにより、水素ガス乾燥装置に特
別な架台２６は不要となる。In this third embodiment, the vacuum pump 1
Instead of 3, a vacuum pump of a sealing oil device used in a hydrogen cooled generator may be used. In this case, since the vacuum pump is always operating, control from the control means 16 is unnecessary. Further, as a backup of the remote control valve in the third embodiment, as shown in FIG. 9, a manual valve 21a,
21b and 21e may be installed. Further, in the third embodiment, the drying cylinder 1 is installed at a high place using the mount 26,
If the vacuum pump was on the first floor of the building, 2 of the dry cylinder building
By installing it on the first floor or the third floor, the special stand 26 is not necessary for the hydrogen gas drying device.
【００６１】さらに、図４に示した第２の実施例を適用
することも可能である。すなわち、真空引き兼ドレン弁
２４を通過する水素ガスを検出する水素ガス検出器２２
を設け、水素ガス入口弁５、水素ガス出口弁６、真空引
き兼ドレン弁２４の水素ガス漏洩を検出するようにする
ことも可能である。Furthermore, it is also possible to apply the second embodiment shown in FIG. That is, the hydrogen gas detector 22 for detecting the hydrogen gas passing through the vacuum and drain valve 24.
It is also possible to detect the leakage of hydrogen gas from the hydrogen gas inlet valve 5, the hydrogen gas outlet valve 6, and the evacuation / drain valve 24.
【００６２】次に、本発明の第４の実施例を図１０に示
す。この第４の実施例は、乾燥筒１の乾燥剤２が吸湿し
たことを検出する吸湿検出器としての色識別スイッチ２
７を設け、この色識別スイッチ２７が動作したときは、
制御手段１６は、再生運転を開始するようにしたもので
ある。すなわち、この第４の実施例では、吸湿検出器と
して乾燥剤２の色を識別する色識別スイッチを用いてい
る。その他の構成は、図１に示した第１の実施例と同じ
であるので、同一要素には同一符号を付しその説明は省
略する。Next, a fourth embodiment of the present invention is shown in FIG. In the fourth embodiment, the color identification switch 2 as a moisture absorption detector for detecting that the desiccant 2 in the drying cylinder 1 has absorbed moisture.
7 is provided, and when the color identification switch 27 operates,
The control means 16 starts the regeneration operation. That is, in the fourth embodiment, the color identification switch for identifying the color of the desiccant 2 is used as the moisture absorption detector. Since the other structure is the same as that of the first embodiment shown in FIG. 1, the same elements are designated by the same reference numerals and the description thereof will be omitted.
【００６３】乾燥剤２がアルミナなどの吸湿により色の
変化する材料である場合、乾燥筒１に設けられた吸湿検
出器としての色識別スイッチ２７により、乾燥剤２の水
分吸収状態を色より判定し、制御手段１６にその情報を
入力し、乾燥運転から再生運転へ自動的に切り替えるよ
うにしている。When the desiccant 2 is a material such as alumina whose color changes due to moisture absorption, the moisture absorption state of the desiccant 2 is determined from the color by the color identification switch 27 as a moisture absorption detector provided in the drying cylinder 1. Then, the information is input to the control means 16 so that the drying operation is automatically switched to the regeneration operation.
【００６４】このように、この第４の実施例によれば、
水素ガス乾燥装置は自ら乾燥剤２の吸湿を検知し、自動
的に再生運転に切り替わることになるので、運転員の操
作は不要となり、運転員の負担を軽減できる。As described above, according to the fourth embodiment,
Since the hydrogen gas drying device itself detects the moisture absorption of the desiccant 2 and automatically switches to the regenerating operation, the operator's operation becomes unnecessary and the burden on the operator can be reduced.
【００６５】次に、本発明の第５の実施例を図１１に示
す。この第５の実施例は、図１１に示した第４の実施例
に対し、吸湿検出器として、水素ガスの湿度を検出する
湿度スイッチ２８を用いたものである。この第５の実施
例では、出口側配管１１の回転機９と水素ガス出口弁６
との間に湿度スイッチ２８を設け、湿度スイッチ２８は
乾燥筒１を通過した水素ガスの湿度がある値以上になる
と動作する。この動作信号が制御手段１６に入力される
と、制御手段１６は乾燥剤２が吸湿状態にあると判定
し、自動的に乾燥運転から再生運転へ切り替える。Next, FIG. 11 shows a fifth embodiment of the present invention. The fifth embodiment differs from the fourth embodiment shown in FIG. 11 in that a humidity switch 28 for detecting the humidity of hydrogen gas is used as a moisture absorption detector. In the fifth embodiment, the rotating machine 9 of the outlet side pipe 11 and the hydrogen gas outlet valve 6
A humidity switch 28 is provided between and, and the humidity switch 28 operates when the humidity of the hydrogen gas passing through the drying cylinder 1 exceeds a certain value. When this operation signal is input to the control means 16, the control means 16 determines that the desiccant 2 is in a moisture absorbing state, and automatically switches from the drying operation to the regenerating operation.
【００６６】このように、この第５の実施例によれば、
水素ガス乾燥装置は自ら乾燥剤２の吸湿を検知し、自動
的に再生運転に切り替わることになり、運転員の操作は
不要となり、運転員の負担を低減できる。As described above, according to the fifth embodiment,
The hydrogen gas drying device itself detects the moisture absorption of the desiccant 2 and automatically switches to the regeneration operation, which eliminates the need for operator's operation and reduces the operator's burden.
【００６７】第４の実施例及び第５の実施例では、第１
の実施例に吸湿検出器を設けたものを示したが、第２の
実施例又は第３の実施例に吸湿検出器を設けるようにし
ても良い。In the fourth and fifth embodiments, the first
Although the example in which the moisture absorption detector is provided is shown, the moisture absorption detector may be provided in the second embodiment or the third embodiment.
【００６８】[0068]
【発明の効果】以上述べたように、本発明によれば、水
素ガス乾燥装置の乾燥運転から再生運転を自動的に行う
ことができるため、運転員の負担が軽減することにな
る。As described above, according to the present invention, it is possible to automatically perform the drying operation to the regeneration operation of the hydrogen gas drying apparatus, so that the burden on the operator is reduced.
【００６９】請求項１の発明によれば、水素ガス乾燥装
置の制御手段の操作スイッチを操作するだけで、制御手
段の演算手段により、水素ガス入口弁、水素ガス出口
弁、真空引き弁、ドレン弁の各弁の開閉、加熱器、真空
ポンプの運転がシーケンシャルに行われ、乾燥運転から
再生運転への移行が自動的に行われるので、運転員は一
つの操作で、水素ガス乾燥装置の運転を行うことができ
負担が軽減する。According to the first aspect of the present invention, the hydrogen gas inlet valve, the hydrogen gas outlet valve, the vacuum suction valve, and the drain can be operated by operating the operation switch of the control means of the hydrogen gas drying device, by the operation means of the control means. The opening and closing of each valve of the valve, the operation of the heater and the vacuum pump are performed sequentially, and the transition from the drying operation to the regeneration operation is automatically performed, so the operator can operate the hydrogen gas drying device with one operation. Can reduce the burden.
【００７０】請求項２又は請求項３の発明によれば、請
求項１の発明の効果に加え、運転員がその場にいないと
きに水素ガス入口弁、水素ガス出口弁、真空引き弁、ド
レン弁が故障した場合でも、外部へ水素ガスの漏洩を防
ぐことが可能となる。また、水素ガス漏洩を検知した場
合、制御手段又は中央操作室等に設置されている制御盤
に警報を表示することも可能である。According to the invention of claim 2 or claim 3, in addition to the effect of the invention of claim 1, the hydrogen gas inlet valve, the hydrogen gas outlet valve, the vacuum suction valve, the drain when the operator is not present there. Even if the valve fails, it is possible to prevent hydrogen gas from leaking to the outside. Further, when hydrogen gas leakage is detected, an alarm can be displayed on the control means or the control panel installed in the central operation room or the like.
【００７１】請求項４の発明によれば、請求項１乃至請
求項３の発明の効果に加え、再生運転を運転モードに応
じてシーケンシャルに行うことができるので、再生運転
を円滑に行わうことができる。According to the invention of claim 4, in addition to the effects of the inventions of claims 1 to 3, since the regenerating operation can be performed sequentially according to the operation mode, the regenerating operation can be performed smoothly. You can
【００７２】請求項５の発明によれば、真空引き弁とド
レン弁とを一体にした真空引き兼ドレン弁を用い、ドレ
ンタンクを真空ポンプより高所に配置し、ドレン抜きと
真空引きを同時に行うので、請求項１の効果に加え、乾
燥筒１の放熱を水素ガスにて行うことができ、システム
と運転制御も簡素化される。According to the fifth aspect of the present invention, the drain valve which is a combination of the vacuum valve and the drain valve is used, and the drain tank is arranged at a higher position than the vacuum pump. Since it is performed, in addition to the effect of claim 1, heat radiation of the drying cylinder 1 can be performed by hydrogen gas, and the system and operation control are also simplified.
【００７３】請求項６の発明によれば、請求項５の効果
に加え、運転員がその場にいないときに水素ガス入口
弁、水素ガス出口弁、真空引き兼ドレン弁が故障した場
合でも、外部へ水素ガスの漏洩を防ぐことが可能とな
る。According to the invention of claim 6, in addition to the effect of claim 5, even when the hydrogen gas inlet valve, the hydrogen gas outlet valve, and the evacuation / drain valve fail when the operator is not there, It becomes possible to prevent leakage of hydrogen gas to the outside.
【００７４】請求項７の発明によれば、請求項５又は請
求項６の発明の効果に加え、再生運転を運転モードに応
じてシーケンシャルに行うことができるので、再生運転
を円滑に行わうことができる。According to the invention of claim 7, in addition to the effect of the invention of claim 5 or claim 6, since the regeneration operation can be performed sequentially according to the operation mode, the regeneration operation can be performed smoothly. You can
【００７５】請求項８乃至請求項１０の発明によれば、
水素ガス乾燥装置は自ら乾燥剤２の吸湿を検知し、自動
的に再生運転に切り替わることになるので、運転員の操
作は不要となり、運転員の負担を軽減できる。According to the inventions of claims 8 to 10,
Since the hydrogen gas drying device itself detects the moisture absorption of the desiccant 2 and automatically switches to the regenerating operation, the operator's operation becomes unnecessary and the burden on the operator can be reduced.
【図１】本発明の第１の実施例を示す構成図。FIG. 1 is a configuration diagram showing a first embodiment of the present invention.
【図２】本発明の第１の実施例における各運転モードと
各弁及び各スイッチの状態の関係の説明図。FIG. 2 is an explanatory diagram of a relationship between each operation mode and states of each valve and each switch in the first embodiment of the present invention.
【図３】本発明の第１の実施例の各弁に手動弁を設けた
場合の構成図。FIG. 3 is a configuration diagram when a manual valve is provided in each valve of the first embodiment of the present invention.
【図４】本発明の第２の実施例を示す構成図。FIG. 4 is a configuration diagram showing a second embodiment of the present invention.
【図５】本発明の第２の実施例における水素ガス漏洩検
出のためのロジック図。FIG. 5 is a logic diagram for detecting hydrogen gas leakage in the second embodiment of the present invention.
【図６】本発明の第３の実施例を示す構成図。FIG. 6 is a configuration diagram showing a third embodiment of the present invention.
【図７】本発明の第３の実施例における乾燥機の設置位
置の説明図。FIG. 7 is an explanatory view of the installation position of the dryer in the third embodiment of the present invention.
【図８】本発明の第３の実施例における各運転モードと
各弁及び各スイッチの状態の関係の説明図。FIG. 8 is an explanatory diagram of a relationship between each operation mode and each valve and each switch state in the third embodiment of the present invention.
【図９】本発明の第３の実施例の各弁に手動弁を設けた
場合の構成図。FIG. 9 is a configuration diagram when a manual valve is provided for each valve of the third embodiment of the present invention.
【図１０】本発明の第４の実施例を示す構成図。FIG. 10 is a configuration diagram showing a fourth embodiment of the present invention.
【図１１】本発明の第５の実施例を示す構成図。FIG. 11 is a configuration diagram showing a fifth embodiment of the present invention.
【図１２】従来例の構成図。FIG. 12 is a configuration diagram of a conventional example.
１ 乾燥筒 ２ 乾燥剤 ３ 加熱器 ４ ドレンタンク ５ 水素ガス入口弁 ６ 水素ガス出口弁 ７ 真空引き弁 ８ ドレン弁 ９ 回転機 １０ 入口側配管 １１ 出口側配管 １２ 点検窓 １３ 真空ポンプ １４ 真空引き配管 １５ 大気放出管 １６ 制御手段 １７ 圧力スイッチ １８ 温度スイッチ １９ 演算手段 ２０ 操作スイッチ ２１ 手動弁 ２２ 第１の水素ガス検知器 ２３ 第２の水素ガス検知器 ２４ 真空引き兼ドレン弁 ２５ 真空引き兼ドレン配管 ２６ 架台 ２７ 色識別スイッチ ２８ 湿度スイッチ 1 Drying Cylinder 2 Desiccant 3 Heater 4 Drain Tank 5 Hydrogen Gas Inlet Valve 6 Hydrogen Gas Outlet Valve 7 Vacuum Evacuation Valve 8 Drain Valve 9 Rotating Machine 10 Inlet Side Pipe 11 Outlet Pipe 12 Inspection Window 13 Vacuum Pump 14 Vacuum Evacuation Pipe 15 atmosphere release pipe 16 control means 17 pressure switch 18 temperature switch 19 computing means 20 operation switch 21 manual valve 22 first hydrogen gas detector 23 second hydrogen gas detector 24 vacuum and drain valve 25 vacuum and drain piping 26 frame 27 color identification switch 28 humidity switch
Claims (10)
口弁側と水素ガス出口弁側との水素ガス圧力差により乾
燥筒に循環させ前記乾燥筒内部の乾燥剤により前記水素
ガスの除湿のための乾燥運転を行うと共に、前記乾燥剤
が十分吸湿したときには真空引き弁を開し真空ポンプで
前記乾燥筒の真空引きを行い加熱器で加熱してドレン水
をドレンタンクに貯蔵しドレン弁を介して前記ドレン水
を排出する再生運転を行うようにした水素冷却式回転機
の水素ガス乾燥装置において、前記水素ガス入口弁、前
記水素ガス出口弁、前記真空引き弁及び前記ドレン弁を
それぞれ遠隔操作可能な弁で構成し、前記乾燥筒が真空
引きされた状態であるか否かを検出する圧力スイッチ
と、前記乾燥筒が加熱されている状態であるか否かを検
出する温度スイッチと、前記再生運転が開始されたとき
は前記圧力スイッチ及び前記温度スイッチの状態に基づ
いて前記遠隔操作可能な弁で構成された前記水素ガス入
口弁、前記水素ガス出口弁、前記真空引き弁及び前記ド
レン弁を開閉操作するための制御手段とを備えたことを
特徴とする水素冷却式回転機の水素ガス乾燥装置。1. Dehumidifying the hydrogen gas with a desiccant inside the drying cylinder by circulating hydrogen gas for cooling a rotating machine through a drying cylinder due to a hydrogen gas pressure difference between the hydrogen gas inlet valve side and the hydrogen gas outlet valve side. When the desiccant absorbs sufficient moisture, the vacuum valve is opened and the drying cylinder is evacuated by the vacuum pump and heated by the heater to store the drain water in the drain tank and the drain valve. In a hydrogen gas drying device of a hydrogen-cooled rotary machine configured to perform a regeneration operation for discharging the drain water via a, the hydrogen gas inlet valve, the hydrogen gas outlet valve, the vacuum suction valve and the drain valve, respectively. A pressure switch configured by a remotely controllable valve, which detects whether or not the drying cylinder is in a vacuum state, and a temperature switch which detects whether or not the drying cylinder is in a heated state. When the regeneration operation is started, the hydrogen gas inlet valve, the hydrogen gas outlet valve, the vacuum evacuation valve, and the vacuum valve, which are configured by the valves that can be remotely operated based on the states of the pressure switch and the temperature switch, A hydrogen gas drying device for a hydrogen-cooled rotary machine, comprising: a control means for opening and closing a drain valve.
出する第１の水素ガス検知器を設け、前記真空引き弁が
閉のとき、又は前記真空引き弁が開で前記水素ガス入口
弁及び前記水素ガス出口弁の双方が閉のときに、第１の
水素ガス検知器が前記水素ガスを検出したときは、前記
制御手段は前記乾燥運転及び再生運転を停止するように
したことを特徴とする請求項１に記載の水素冷却式回転
機の水素ガス乾燥装置。2. A first hydrogen gas detector for detecting hydrogen gas passing through the vacuum suction valve is provided, and when the vacuum suction valve is closed or when the vacuum suction valve is open, the hydrogen gas inlet valve and When both the hydrogen gas outlet valves are closed and the first hydrogen gas detector detects the hydrogen gas, the control means stops the drying operation and the regenerating operation. The hydrogen gas drying apparatus for a hydrogen-cooled rotary machine according to claim 1.
する第２の水素ガス検知器を設け、前記ドレン弁が閉の
とき、又は前記ドレン弁が開で前記水素ガス入口弁及び
前記水素ガス出口弁の双方が閉のときに、第２の水素ガ
ス検知器が前記水素ガスを検出したときは、前記制御手
段は前記乾燥運転及び再生運転を停止するようにしたこ
とを特徴とする請求項１又は請求項２に記載の水素冷却
式回転機の水素ガス乾燥装置。3. A second hydrogen gas detector for detecting hydrogen gas passing through the drain valve is provided, and when the drain valve is closed, or when the drain valve is open, the hydrogen gas inlet valve and the hydrogen gas are provided. The control means stops the drying operation and the regenerating operation when the second hydrogen gas detector detects the hydrogen gas when both of the outlet valves are closed. The hydrogen gas drying device for a hydrogen-cooled rotary machine according to claim 1 or 2.
の指令を受けると、前記水素入口弁と前記水素出口弁と
を閉して前記乾燥筒への水素ガスの循環を停止し、この
状態で前記真空引き弁を開して前記真空ポンプで前記乾
燥筒内の真空引きを行い前記圧力スイッチが真空引きを
検出すると前記加熱器をオンし、一定の時間経過後に前
記加熱器をオフして前記真空引き弁を閉し、その後に前
記ドレン弁を開して前記乾燥筒内で発生したドレン水を
排水し、前記ドレン水の排水が終了すると前記ドレン弁
を閉し前記真空引き弁を開して前記真空ポンプで前記乾
燥筒を真空状態にし、この真空状態で前記真空引き弁を
閉し前記水素入口弁と前記水素出口弁とを開して前記乾
燥筒に前記水素ガスを循環させ前記乾燥運転に戻るよう
に制御することを特徴とする請求項１乃至請求項３に記
載の水素冷却式回転機の水素ガス乾燥装置。4. When the control means receives a command for a regenerating operation of the drying cylinder, the control means closes the hydrogen inlet valve and the hydrogen outlet valve to stop circulation of hydrogen gas to the drying cylinder. In this state, the vacuum valve is opened, the vacuum pump evacuates the drying cylinder, and when the pressure switch detects vacuum, the heater is turned on, and after a certain period of time, the heater is turned off. To close the vacuum suction valve, then open the drain valve to drain the drain water generated in the drying cylinder, and when the drain water drainage is completed, close the drain valve to close the vacuum suction valve. Open to bring the drying cylinder into a vacuum state by the vacuum pump, and in this vacuum state, close the vacuum valve to open the hydrogen inlet valve and the hydrogen outlet valve to circulate the hydrogen gas in the drying cylinder. It is specially controlled to return to the drying operation. The hydrogen gas drying device for a hydrogen-cooled rotary machine according to claim 1, wherein
口弁側と水素ガス出口弁側との水素ガス圧力差により乾
燥筒に循環させ前記乾燥筒内部の乾燥剤により前記水素
ガスの除湿のための乾燥運転を行うと共に、前記乾燥剤
が十分吸湿したときには真空引き弁を開し真空ポンプで
前記乾燥筒の真空引きを行い加熱器で加熱してドレン水
をドレンタンクに貯蔵しドレン弁を介して前記ドレン水
を排出する再生運転を行うようにした水素冷却式回転機
の水素ガス乾燥装置において、前記真空引き弁及び前記
ドレン弁を真空引き兼ドレン弁とし、前記水素ガス入口
弁、前記水素ガス出口弁、前記真空引き兼ドレン弁をそ
れぞれ遠隔操作可能な弁で構成し、前記ドレンタンクを
前記真空ポンプより高所に配置し、前記乾燥筒が真空引
きされた状態であるか否かを検出する圧力スイッチと、
前記乾燥筒が加熱されている状態であるか否かを検出す
る温度スイッチと、前記再生運転が開始されたときは前
記圧力スイッチ及び前記温度スイッチの状態に基づいて
前記遠隔操作可能な弁で構成された前記水素ガス入口
弁、前記水素ガス出口弁、前記真空引き兼ドレン弁を開
閉操作するための制御手段とを備えたことを特徴とする
水素冷却式回転機の水素ガス乾燥装置。5. Dehumidifying the hydrogen gas with a desiccant in the drying cylinder by circulating hydrogen gas for cooling the rotating machine through a drying cylinder due to a hydrogen gas pressure difference between the hydrogen gas inlet valve side and the hydrogen gas outlet valve side. When the desiccant absorbs sufficient moisture, the vacuum valve is opened and the drying cylinder is evacuated by the vacuum pump and heated by the heater to store the drain water in the drain tank and the drain valve. In a hydrogen gas drying apparatus for a hydrogen-cooled rotary machine, which is configured to perform a regeneration operation for discharging the drain water through the vacuum suction valve and the drain valve as a vacuum suction and drain valve, the hydrogen gas inlet valve, The hydrogen gas outlet valve and the vacuuming / draining valve are each configured as a remotely controllable valve, the drain tank is located higher than the vacuum pump, and the drying cylinder is vacuumed. A pressure switch that detects whether or not
A temperature switch that detects whether or not the drying cylinder is in a heated state, and a valve that can be remotely operated based on the states of the pressure switch and the temperature switch when the regeneration operation is started A hydrogen gas drying apparatus for a hydrogen-cooled rotary machine, comprising: the hydrogen gas inlet valve, the hydrogen gas outlet valve, and a control unit for opening and closing the vacuum and drain valve.
ガスを検出する第１の水素ガス検知器を設け、前記真空
引き兼ドレン弁が閉のとき、又は前記真空引き兼ドレン
弁が開で前記水素ガス入口弁及び前記水素ガス出口弁の
双方が閉のときに、第１の水素ガス検知器が前記水素ガ
スを検出したときは、前記制御手段は前記乾燥運転及び
再生運転を停止するようにしたことを特徴とする請求項
５に記載の水素冷却式回転機の水素ガス乾燥装置。6. A first hydrogen gas detector for detecting hydrogen gas passing through the vacuum and drain valve is provided, and when the vacuum and drain valve is closed, or when the vacuum and drain valve is open. When the first hydrogen gas detector detects the hydrogen gas when both the hydrogen gas inlet valve and the hydrogen gas outlet valve are closed, the control means stops the drying operation and the regeneration operation. The hydrogen gas drying device for a hydrogen-cooled rotary machine according to claim 5, wherein:
の指令を受けると、前記水素入口弁と前記水素出口弁と
を閉して前記乾燥筒への水素ガスの循環を停止し、この
状態で前記真空引き兼ドレン弁を開して前記真空ポンプ
で前記乾燥筒内の真空引きを行い前記圧力スイッチが真
空引きを検出すると前記加熱器をオンし、この状態で真
空引き兼用ドレン弁から前記乾燥筒内で発生したドレン
水を排水し、一定の時間経過後に前記加熱器をオフして
前記真空引き兼ドレン弁を閉し、前記水素入口弁と前記
水素出口弁とを開して前記乾燥筒に前記水素ガスを循環
させ前記乾燥運転に戻るように制御することを特徴とす
る請求項５又は請求項６に記載の水素冷却式回転機の水
素ガス乾燥装置。7. The control means, when receiving a command for a regenerating operation of the drying cylinder, closes the hydrogen inlet valve and the hydrogen outlet valve to stop the circulation of hydrogen gas to the drying cylinder. In this state, open the vacuum / drain valve, evacuate the inside of the drying cylinder with the vacuum pump, turn on the heater when the pressure switch detects vacuum, and in this state, from the vacuum / drain valve. The drain water generated in the drying cylinder is drained, the heater is turned off after a lapse of a fixed time, the vacuum suction and drain valve is closed, and the hydrogen inlet valve and the hydrogen outlet valve are opened. The hydrogen gas drying apparatus for a hydrogen-cooled rotary machine according to claim 5 or 6, wherein the hydrogen gas is circulated in a drying cylinder and controlled to return to the drying operation.
を検出する吸湿検出器を設け、この吸湿検出器が動作し
たときは、前記制御手段は、再生運転を開始するように
したことを特徴とする請求項１乃至請求項７に記載の水
素冷却式回転機の水素ガス乾燥装置。8. A moisture absorption detector that detects that the desiccant in the drying cylinder has absorbed moisture is provided, and when the moisture absorption detector operates, the control means starts the regeneration operation. The hydrogen gas drying device for a hydrogen-cooled rotary machine according to any one of claims 1 to 7.
別する色識別スイッチであることを特徴とする請求項８
に記載の水素冷却式回転機の水素ガス乾燥装置。9. The moisture absorption detector is a color identification switch for identifying the color of the desiccant.
A hydrogen gas drying device for a hydrogen-cooled rotary machine according to [4].
度を検出する湿度スイッチであることを特徴とする請求
項８に記載の水素冷却式回転機の水素ガス乾燥装置。10. The hydrogen gas drying device for a hydrogen-cooled rotary machine according to claim 8, wherein the moisture absorption detector is a humidity switch for detecting the humidity of the hydrogen gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7155490A JPH08331808A (en) | 1995-05-31 | 1995-05-31 | Hydrogen gas drying device for hydrogen-cooled rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7155490A JPH08331808A (en) | 1995-05-31 | 1995-05-31 | Hydrogen gas drying device for hydrogen-cooled rotary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08331808A true JPH08331808A (en) | 1996-12-13 |
Family
ID=15607194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7155490A Pending JPH08331808A (en) | 1995-05-31 | 1995-05-31 | Hydrogen gas drying device for hydrogen-cooled rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08331808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180117527A1 (en) * | 2015-06-11 | 2018-05-03 | Mitsubishi Electric Corporation | Rotating electrical machine gas dryer |
-
1995
- 1995-05-31 JP JP7155490A patent/JPH08331808A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180117527A1 (en) * | 2015-06-11 | 2018-05-03 | Mitsubishi Electric Corporation | Rotating electrical machine gas dryer |
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