JP5073029B2 - Pressure oil supply control device - Google Patents

Pressure oil supply control device Download PDF

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JP5073029B2
JP5073029B2 JP2010200942A JP2010200942A JP5073029B2 JP 5073029 B2 JP5073029 B2 JP 5073029B2 JP 2010200942 A JP2010200942 A JP 2010200942A JP 2010200942 A JP2010200942 A JP 2010200942A JP 5073029 B2 JP5073029 B2 JP 5073029B2
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pressure oil
oil tank
oil
pressure
tank
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JP2012058970A (en
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滋 角屋
国光 池松
義明 伊達
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Chugoku Electric Power Co Inc
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Description

本発明は水力発電所、工場等の各種施設において、圧油によって駆動される機器に対する圧油の供給を制御するために使用される圧油供給制御装置の改良に関する。   The present invention relates to an improvement in a pressure oil supply control device used for controlling the supply of pressure oil to equipment driven by pressure oil in various facilities such as hydroelectric power plants and factories.

水力発電所、工場等の各種施設においては設備を構成する機器の動力源として圧力を高められた油、即ち圧油が多用されている（特許文献１）。
図２は水力発電所に設置される従来の圧油供給制御装置の概略構成図である。
圧油によって駆動される水力発電用機器（被駆動機器）は、圧油供給制御装置から供給される圧油によってその作動を制御される。
圧油供給制御装置１００は、油を収容する油槽１０２と、圧油を収容する大容量（例えば、８００リットル）の圧油タンク１０４と、油槽１０２、圧油タンク１０４、及び被駆動機器１２０との間を連接して油を流通させる油供給用配管１０５と、圧油タンク１０４と被駆動機器１２０との間の油供給用配管に設置されて開閉する油用バルブ１０７と、油槽１０２から圧油タンク１０４に油を供給するポンプ１０９と、圧油タンク１０４内の油を夫々油槽１０２に排出する排出用配管１１１と、を備える。 In various facilities such as hydroelectric power plants and factories, oil whose pressure has been increased, that is, pressure oil, is frequently used as a power source for equipment constituting the equipment (Patent Document 1).
FIG. 2 is a schematic configuration diagram of a conventional pressure oil supply control device installed in a hydroelectric power plant.
The operation of the hydraulic power generation device (driven device) driven by the pressure oil is controlled by the pressure oil supplied from the pressure oil supply control device.
The pressure oil supply control device 100 includes an oil tank 102 that contains oil, a large capacity (for example, 800 liters) pressure oil tank 104 that contains pressure oil, an oil tank 102, a pressure oil tank 104, and a driven device 120. Between the oil supply pipe 105 through which oil is circulated, the oil supply valve 107 installed in the oil supply pipe between the pressure oil tank 104 and the driven device 120, and the pressure from the oil tank 102. A pump 109 for supplying oil to the oil tank 104 and a discharge pipe 111 for discharging the oil in the pressure oil tank 104 to the oil tank 102 are provided.

設備点検作業時の安全性を確保するためには各種被駆動機器１２０に対する圧油の供給を停止する必要があり、その際には排出用配管１１１を経由して圧油タンク１０４内の油を油槽１０２に排出して圧油タンク内の油圧を低下させる作業が実施される。油用バルブ１０７、その他のバルブを閉じることによって各種被駆動機器１２０に対する圧油の供給は遮断することができるが、バルブ操作にはミスが発生し易いため、作業者の安全性を高めるためには圧油タンク１０４の圧力を低下させることが必要である。
一方、設備点検が終了したことによって圧油タンク１０４内の油圧を高める復旧作業に際しては、排出用配管１１１上のバルブ、油用バルブ１０７を閉じた状態でポンプ１０９を駆動して油槽１０２から圧油タンク１０４へ油を供給する作業を実施する。通常、８００リットルの圧油タンク１０４に油を充填するには約２時間を要する。 In order to ensure safety during equipment inspection work, it is necessary to stop the supply of pressure oil to the various driven devices 120. In this case, the oil in the pressure oil tank 104 is removed via the discharge pipe 111. The operation of discharging to the oil tank 102 and reducing the hydraulic pressure in the pressure oil tank is performed. By closing the oil valve 107 and other valves, the supply of the pressure oil to the various driven devices 120 can be cut off, but mistakes are likely to occur in the valve operation, so that the safety of the operator is increased. It is necessary to reduce the pressure in the pressure oil tank 104.
On the other hand, at the time of restoration work to increase the hydraulic pressure in the pressure oil tank 104 after the facility inspection is completed, the pump 109 is driven with the valve on the discharge pipe 111 and the oil valve 107 closed, and the pressure from the oil tank 102 is increased. An operation of supplying oil to the oil tank 104 is performed. Normally, it takes about 2 hours to fill the 800 liter pressurized oil tank 104 with oil.

ところで、水力発電所では、未習熟の作業員に圧油供給制御装置の操作を習得させるために、老朽化や設備変更によって不要となった設備一式を操作訓練用に流用することがある。この操作訓練には、設備点検のために各種バルブを操作して圧油タンク１０４内の油圧を低下させた後で、圧力復旧のために行われる圧油確立と呼ばれる訓練が含まれる。
一方、圧油確立訓練において内部の油を排出した大容量（８００リットル）の圧油タンク１０４内にポンプ１０９を用いて油を供給する作業に約２時間を要するとすれば、圧油確立訓練を一度実施してから次の研修者が訓練を開始するまでの待機時間が長期化することとなる。このため、全研修者が圧油確立訓練を修了するまでに長期間を要しているのが実情であり、この点の改善が求められていた。
なお、大容量の圧油タンクに代えて、圧油確立訓練専用に小容量の圧油タンクを用いることも考えられるが、小容量の圧油タンクでは接続された被駆動機器を実際に駆動する訓練を行うことができなくなり、他の運転研修に支障が生じる。また、現物の圧油タンクと異なるため、臨場感が損なわれ、研修効果が著しく低下する虞がある。 By the way, in a hydroelectric power plant, in order to make an unskilled worker learn the operation of the pressure oil supply control device, a set of facilities that have become unnecessary due to aging or facility change may be used for operation training. This operation training includes training called pressure oil establishment performed for pressure recovery after operating various valves for equipment inspection to lower the hydraulic pressure in the pressure oil tank 104.
On the other hand, if it takes about 2 hours to supply the oil using the pump 109 into the large-capacity (800 liters) pressure oil tank 104 that has discharged the internal oil in the pressure oil establishment training, the pressure oil establishment training is performed. This will increase the waiting time until the next trainee starts training after the training is conducted. For this reason, it is a fact that all trainees need a long time to complete the pressure oil establishment training, and improvement of this point has been demanded.
It is possible to use a small-capacity pressure oil tank exclusively for pressure oil establishment training instead of a large-capacity pressure oil tank, but the connected device is actually driven in the small-capacity pressure oil tank. Training cannot be performed, and other driving training is hindered. Moreover, since it is different from the actual pressure oil tank, there is a risk that the sense of reality is impaired and the training effect is significantly reduced.

特開２００２−３６６２０１公報JP 2002-366201 A

以上のように従来、現物サイズの圧油タンクを備えた圧油供給制御装置を用いて圧油確立訓練を実施する際には、圧油タンク内に油を供給して圧力を復旧させるまでに長時間を要するため、多数の研修者が圧油確立訓練を修了するまでに長期間を要するという問題があった。
本発明は上記に鑑みてなされたものであり、現物サイズの大容量の圧油タンクを備えた圧油供給制御装置を用いて操作訓練を行う場合に、圧油タンク内に油を供給して圧力を復旧させる時間を大幅に短縮し、個々の研修者が圧油確立訓練を修了するのに要する時間を大幅に短縮することができる圧油供給制御装置を提供することを目的としている。 As described above, when performing pressure oil establishment training using a pressure oil supply control device equipped with a pressure oil tank of the actual size as described above, it is necessary to supply oil into the pressure oil tank and restore the pressure. Since it took a long time, there was a problem that many trainees took a long time to complete the pressure oil establishment training.
The present invention has been made in view of the above, and when performing an operation training using a pressure oil supply control device including a large-sized pressure oil tank of the actual size, oil is supplied into the pressure oil tank. It is an object of the present invention to provide a pressure oil supply control device that can greatly reduce the time for restoring pressure and can significantly reduce the time required for individual trainees to complete the pressure oil establishment training.

上記目的を達成するため、請求項１の発明は、圧油により駆動される被駆動機器に対する圧油の供給を制御する圧油供給制御装置であって、油を収容する油槽と、圧油を収容する圧油タンクと、該圧油タンクと配管接続され且つ前記圧油タンクよりも圧油収容量を小さく設定した小型圧油タンクと、前記油槽、圧油タンク、小型圧油タンク、及び前記被駆動機器との間を連接して油を供給する油供給用配管と、前記圧油タンクと前記小型圧油タンクとの間の油供給用配管に設置される油用バルブと、前記油用バルブを開放した状態で前記油槽から前記小型圧油タンクを経由して前記圧油タンクに油を供給するポンプと、前記圧油タンク内、及び前記小型圧油タンク内の各油を夫々前記油槽に排出する排出用配管と、を備え、前記小型圧油タンク内の油圧を低下させる際には、前記油用バルブを閉じて前記圧油タンクから前記小型圧油タンクへの油の供給を阻止した状態で前記小型圧油タンク側の前記排出用配管から油を排出し、前記小型圧油タンク内の油圧を高める場合には、前記油用バルブを開放することによって前記圧油タンク内の圧油を前記小型圧油タンク内に供給することを特徴とする。
請求項２の発明は、圧油により駆動される被駆動機器に対する圧油の供給を制御する圧油供給制御装置であって、油を収容する油槽と、圧油を収容する圧油タンクと、該圧油タンクと配管接続され且つ前記圧油タンクよりも圧油収容量を小さく設定した小型圧油タンクと、前記油槽、圧油タンク、小型圧油タンク、及び前記被駆動機器との間を連接して油を供給する油供給用配管と、前記圧油タンクと前記小型圧油タンクとの間の油供給用配管に設置される油用バルブと、前記油用バルブを開放した状態で前記油槽から前記小型圧油タンクを経由して前記圧油タンクに油を供給するポンプと、前記圧油タンク内、及び前記小型圧油タンク内の各油を夫々前記油槽に排出する排出用配管と、を備え、前記小型圧油タンク内の油圧を低下させる際には、前記油用バルブを閉じて前記圧油タンクから前記小型圧油タンクへの油の供給を阻止した状態で前記小型圧油タンク側の前記排出用配管から油を排出し、前記小型圧油タンク内の油圧を高める場合には、前記油用バルブを閉じた状態で前記ポンプによって前記油槽から前記小型圧油タンクに油を供給することを特徴とする。 In order to achieve the above object, the invention of claim 1 is a pressure oil supply control device for controlling the supply of pressure oil to a driven device driven by pressure oil, comprising an oil tank for containing oil, and a pressure oil. A pressure oil tank to be stored, a small pressure oil tank connected to the pressure oil tank and having a pressure oil capacity set smaller than the pressure oil tank, the oil tank, the pressure oil tank, the small pressure oil tank, and the An oil supply pipe for connecting oil to a driven device and supplying oil; an oil valve installed in an oil supply pipe between the pressure oil tank and the small pressure oil tank; A pump that supplies oil from the oil tank to the pressure oil tank via the small pressure oil tank with the valve opened, and each oil in the pressure oil tank and in the small pressure oil tank respectively in the oil tank And a small pressure oil tank. When lowering the hydraulic pressure in the tank, the oil valve is closed and the supply of oil from the pressure oil tank to the small pressure oil tank is blocked. When the hydraulic pressure in the small pressure oil tank is increased, the oil in the pressure oil tank is supplied into the small pressure oil tank by opening the oil valve. .
The invention of claim 2 is a pressure oil supply control device for controlling the supply of pressure oil to a driven device driven by pressure oil, an oil tank for containing oil, a pressure oil tank for containing pressure oil, Between a small pressure oil tank connected to the pressure oil tank and having a pressure oil capacity set smaller than the pressure oil tank, and the oil tank, the pressure oil tank, the small pressure oil tank, and the driven device. An oil supply pipe connected to supply oil, an oil valve installed in an oil supply pipe between the pressure oil tank and the small pressure oil tank, and the oil valve in an open state A pump for supplying oil from the oil tank to the pressure oil tank via the small pressure oil tank; and a discharge pipe for discharging each oil in the pressure oil tank and the small pressure oil tank to the oil tank, respectively. And reducing the hydraulic pressure in the small pressure oil tank The oil is discharged from the discharge pipe on the small pressure oil tank side in a state where the oil valve is closed to prevent the oil supply from the pressure oil tank to the small pressure oil tank, and the small pressure oil When increasing the oil pressure in the tank, the oil is supplied from the oil tank to the small pressure oil tank by the pump with the oil valve closed.

本発明では、小型圧油タンクを付加した圧油供給制御装置を操作訓練用に利用することができるので、圧力復旧訓練が短時間で実施可能となり、同じ時間でより多人数に対する訓練を実施することが可能となる。圧力確立時のポンプ運転時間が短くなり、消費電力量を低減することが可能となる。小型圧油タンクを利用した訓練中においても、大容量の圧油タンクは常に十分な圧力を維持しているので、被駆動機器の操作力を常に正常な状態に維持できる。また、実使用されている被駆動機器、及び圧油供給制御装置と同等の設備を使用した訓練となるため、実機と変わりのない臨場感ある効果の高い研修内容とすることができる。
また、この圧油供給制御装置を実使用されている設備に適用することにより、設備点検後の試運転で組立不良があった際の漏油量を微小にして安全性を高めることができる。 In the present invention, since the pressure oil supply control device to which a small pressure oil tank is added can be used for operation training, pressure recovery training can be performed in a short time, and training for a larger number of people is performed in the same time. It becomes possible. The pump operation time at the time of pressure establishment becomes short, and it becomes possible to reduce power consumption. Even during training using a small pressure oil tank, since the large-capacity pressure oil tank always maintains a sufficient pressure, the operating force of the driven device can always be maintained in a normal state. Moreover, since the training is performed using equipment that is equivalent to the driven equipment and the pressure oil supply control device that are actually used, it is possible to provide highly effective training content that is the same as the actual machine.
In addition, by applying this pressure oil supply control device to a facility that is actually used, the amount of oil leakage when there is an assembly failure in a test run after facility inspection can be made minute and safety can be improved.

本発明の一実施形態に係る圧油供給制御装置の概略構成説明図である。It is a schematic structure explanatory view of the pressure oil supply control device concerning one embodiment of the present invention. 従来の圧油供給制御装置の構成説明図である。It is a block diagram of a conventional pressure oil supply control device.

以下、本発明を図面に示した実施の形態に基づいて詳細に説明する。
図１は本発明の一実施形態に係る圧油供給制御装置の概略構成説明図である。
本発明の係る圧油供給制御装置１は、例えば水力発電所に設置されて圧油により駆動される被駆動機器（水力発電用機械）３０に対する圧油の供給を制御する手段である。
圧油供給制御装置１は、油を収容する油槽３と、圧油を収容する大容量（例えば、８００リットル）の圧油タンク５と、圧油タンク５と配管接続され且つ圧油タンクよりも圧油収容量を小さく（例えば、数十リットル）設定された小型圧油タンク７と、油槽３、圧油タンク５、小型圧油タンク７、及び被駆動機器３０との間を連接して油を供給する油供給用配管９と、圧油タンク５と小型圧油タンク７との間の油供給用配管に設置される油用バルブ１１と、圧油タンク５と小型圧油タンク７との間の空気用配管に設置される空気用バルブ１３と、油用バルブ１１及び空気用バルブ１３を開放した状態で油槽３から小型圧油タンク７を経由して圧油タンク５に油を供給するポンプ１５と、圧油タンク５内、及び小型圧油タンク７内の各油を夫々油槽３に排出する排出用配管１７、１８と、制御手段（プラント制御装置）２５と、を備える。 Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
FIG. 1 is a schematic configuration explanatory view of a pressure oil supply control device according to an embodiment of the present invention.
The pressure oil supply control device 1 according to the present invention is means for controlling the supply of pressure oil to a driven device (hydraulic power generation machine) 30 that is installed in, for example, a hydroelectric power plant and is driven by pressure oil.
The pressure oil supply control device 1 includes an oil tank 3 that contains oil, a large-capacity (for example, 800 liter) pressure oil tank 5 that contains pressure oil, and a pipe connected to the pressure oil tank 5 and is more than the pressure oil tank. A small pressure oil tank 7 having a small pressure oil storage capacity (for example, several tens of liters), and the oil tank 3, the pressure oil tank 5, the small pressure oil tank 7, and the driven device 30 are connected to each other for oil. An oil supply pipe 9 for supplying oil, an oil valve 11 installed in an oil supply pipe between the pressure oil tank 5 and the small pressure oil tank 7, and the pressure oil tank 5 and the small pressure oil tank 7. Oil is supplied from the oil tank 3 to the pressure oil tank 5 through the small pressure oil tank 7 with the air valve 13 installed in the air pipe between them, the oil valve 11 and the air valve 13 being opened. Each oil in the pump 15, the pressure oil tank 5, and the small pressure oil tank 7 is respectively used. It comprises a discharge pipe 17 for discharging the bath 3, and the control unit (plant control unit) 25, a.

本例では、油槽３と各圧油タンク５、７とを接続する油供給配管２０は一部共通しており、油供給配管にポンプ１５とバルブ２１、２３を配置することにより、油槽３内の油を圧油タンク５と小型圧油タンク７の何れか一方に対して選択的に供給できるように構成されている。
圧油タンク５内の圧油を使用して被駆動機器３０を駆動させると、使用した油量だけ圧油タンク内の油圧が低下するため、ポンプ及びバルブを駆動、操作することによって適宜油槽３から油を供給して圧油タンクの油量を所定に維持する作業が行われる。
被駆動機器の点検時に点検作業の安全性を確保するために圧油供給制御装置１と被駆動機器３０とを接続する油供給用配管９内の油圧を低下させる場合には、圧油タンク５内の圧力を低下させずに、小型圧油タンク内の圧力だけを低下させる作業を実施する。即ち、油用バルブ１１及び空気用バルブ１３を夫々閉じて圧油タンク５から小型圧油タンク７への油の供給を阻止した状態で、小型圧油タンク側の排出用配管１８から油を排出することにより、小型圧油タンク内の油圧低下作業を実施する。 In this example, the oil supply pipe 20 that connects the oil tank 3 and each of the pressure oil tanks 5 and 7 is partly in common, and by arranging the pump 15 and the valves 21 and 23 in the oil supply pipe, These oils can be selectively supplied to either the pressure oil tank 5 or the small pressure oil tank 7.
When the driven device 30 is driven using the pressure oil in the pressure oil tank 5, the oil pressure in the pressure oil tank decreases by the amount of oil used, so that the oil tank 3 can be appropriately operated by driving and operating the pump and valve. The operation of supplying the oil from the pressure oil tank to maintain the oil amount in the pressure oil tank at a predetermined level is performed.
When the hydraulic pressure in the oil supply pipe 9 connecting the pressure oil supply control device 1 and the driven device 30 is reduced in order to ensure the safety of the inspection work when the driven device is checked, the pressure oil tank 5 Without lowering the internal pressure, work is performed to reduce only the pressure in the small pressure oil tank. In other words, the oil is discharged from the discharge pipe 18 on the small pressure oil tank side while the oil valve 11 and the air valve 13 are closed to prevent the oil supply from the pressure oil tank 5 to the small pressure oil tank 7. By doing so, the hydraulic pressure reduction work in the small pressure oil tank is carried out.

被駆動機器３０を駆動するための圧油の圧力が低下した状態から圧力を復旧させる圧油確立を行う場合には、ポンプ１５を駆動して小型圧油タンク内の油圧を高める作業を実施する。小型圧油タンクの容量は圧油タンクに比して大幅に小さいため、十数分程度の短時間で圧油確立を完了できる。
なお、油用バルブ１１及び空気用バルブ１３を夫々開放して圧油タンク５内の圧油を小型圧油タンク７へ供給することによっても復旧を短時間で行うことができる。ポンプ１５による復旧と、圧油タンク５からの圧油供給による復旧を併用してもよい。いずれにしてもポンプ１５の駆動時間を短縮できるため、省エネルギー化を達成できる。 When establishing the pressure oil for recovering the pressure from the state where the pressure of the pressure oil for driving the driven device 30 is lowered, the pump 15 is driven to increase the oil pressure in the small pressure oil tank. . Since the capacity of the small pressure oil tank is significantly smaller than that of the pressure oil tank, the establishment of pressure oil can be completed in a short time of about ten minutes.
In addition, the oil valve 11 and the air valve 13 are opened, and the pressure oil in the pressure oil tank 5 is supplied to the small pressure oil tank 7 so that the recovery can be performed in a short time. The recovery by the pump 15 and the recovery by the pressure oil supply from the pressure oil tank 5 may be used in combination. In any case, since the drive time of the pump 15 can be shortened, energy saving can be achieved.

小型圧油タンク７を用いた圧油の低下作業、及び復旧作業を実施している間、油用バルブ１１及び空気用バルブ１３が閉塞されていることによって、圧油タンク５内の圧力は高い状態に維持されているため、小型圧油タンク７内の油圧が復旧した時点では、圧油タンク５内の圧油を利用した被駆動機器３０の駆動が可能な状態となっている。このため、油用バルブ１１及び空気用バルブ１３を開放することにより被駆動機器の駆動再開が直ちに可能となる。
小型圧油タンク７は、小型圧油タンクを有しない既存の圧油供給制御装置に対して後付けが可能であり、既存設備に対する大きな改変が不要である。このため、短期間で小型圧油タンクの後付け工事を完了することができる。
実使用されている既存の圧油供給制御装置に小型圧油タンクを組み込むことにより、被駆動機器の点検後の試運転で組立不良があった際の漏油量を微小にでき、安全性を高めることができる。即ち、各所のバルブを閉じることによって点検対象となる被駆動機器の点検後に初めて圧油を通すとき、小型圧油タンク７のみで圧油を供給すれば、万一、組立不良箇所があった場合の漏油量が小型圧油タンク内のみのものになり、微小漏油とすることが可能となる。 The pressure in the pressure oil tank 5 is high because the oil valve 11 and the air valve 13 are closed while the pressure oil lowering operation and the recovery operation using the small pressure oil tank 7 are performed. Since the state is maintained, when the oil pressure in the small pressure oil tank 7 is restored, the driven device 30 using the pressure oil in the pressure oil tank 5 can be driven. For this reason, driving of the driven device can be resumed immediately by opening the oil valve 11 and the air valve 13.
The small pressure oil tank 7 can be retrofitted to an existing pressure oil supply control device that does not have a small pressure oil tank, and does not require major modifications to existing equipment. For this reason, the retrofitting work of a small pressure oil tank can be completed in a short period of time.
By incorporating a small pressure oil tank into an existing pressure oil supply control system that is actually used, the amount of oil leakage when there is an assembly failure in a test run after inspection of the driven equipment can be reduced and safety is improved. be able to. That is, when pressure oil is supplied for the first time after the inspection of the driven equipment to be inspected by closing the valves at various places, if there is an assembly failure part if the pressure oil is supplied only by the small pressure oil tank 7 The amount of oil leakage becomes only that in the small pressure oil tank, and it becomes possible to make the oil leakage small.

次に、上記構成を備えた圧油供給制御装置は圧油装置操作訓練の研修専用手段としての利用が可能である。
即ち、老朽化や設備変更によって圧油供給制御装置を含む水力発電の設備一式が不要となった場合に、これらを廃棄せずに操作訓練用に流用することがあるが、小型圧油タンクを有しない既存の圧油供給制御装置に対して小型圧油タンクを組み込むことによって、操作訓練用の圧油供給制御装置を構築することができる。
この操作訓練用の圧油供給制御装置１を用いた訓練においては、油用バルブ１１及び空気用バルブ１３が閉塞した状態で、小型圧油タンク７を用いた圧油低下のための操作訓練、及び圧油確立（復旧）のための操作訓練を実施する。圧油確立に際しては、ポンプ１５を駆動することによる油槽から小型油圧タンクへの油供給、又は、油用バルブ１１及び空気用バルブ１３を開放することによる圧油タンク５から小型油圧タンクへの圧油供給により、短時間での復旧が可能となり、一人当たりの訓練に要する時間を短縮し、多人数の訓練に要する期間も短縮することができる。 Next, the pressure oil supply control device having the above-described configuration can be used as a dedicated training means for pressure oil device operation training.
In other words, when a set of hydroelectric power generation equipment including a pressure oil supply control device becomes unnecessary due to aging or equipment change, these may be diverted for operation training without being discarded. By incorporating a small pressure oil tank into an existing pressure oil supply control device that does not have, a pressure oil supply control device for operation training can be constructed.
In the training using the pressure oil supply control device 1 for the operation training, the operation training for lowering the pressure oil using the small pressure oil tank 7 with the oil valve 11 and the air valve 13 closed, And conduct operational training to establish (restore) pressure oil. In establishing the pressure oil, the oil is supplied from the oil tank to the small hydraulic tank by driving the pump 15 or the pressure from the pressure oil tank 5 to the small hydraulic tank by opening the oil valve 11 and the air valve 13. Oil supply enables recovery in a short time, reduces the time required for training per person, and shortens the time required for training for a large number of people.

このように小型圧油タンクを付加した圧油供給制御装置を操作訓練用に利用する場合には、圧力復旧訓練が短時間で実施可能となり、同じ時間でより多人数に対する訓練を実施することが可能となる。圧力確立時のポンプ運転時間が短くなり、消費電力量を低減することが可能となる。小型圧油タンクを利用した訓練中においても、大容量の圧油タンクは常に十分な圧力を維持しているので、被駆動機器の操作力を常に正常な状態に維持できる。また、実使用されている被駆動機器、及び圧油供給制御装置と同等の設備を使用した訓練となるため、実機と変わりのない臨場感ある効果の高い研修内容とすることができる。
なお、本発明の圧油供給制御装置は、水力発電所に限らず、油圧によって駆動される各種機器を多数備える施設一般に適用することができる。 In this way, when using a pressure oil supply control device with a small pressure oil tank for operation training, pressure recovery training can be performed in a short time, and more people can be trained in the same time. It becomes possible. The pump operation time at the time of pressure establishment becomes short, and it becomes possible to reduce power consumption. Even during training using a small pressure oil tank, since the large-capacity pressure oil tank always maintains a sufficient pressure, the operating force of the driven device can always be maintained in a normal state. Moreover, since the training is performed using equipment that is equivalent to the driven equipment and the pressure oil supply control device that are actually used, it is possible to provide highly effective training content that is the same as the actual machine.
The pressure oil supply control device of the present invention can be applied not only to a hydroelectric power plant but also to a general facility having a large number of various devices driven by hydraulic pressure.

１…圧油供給制御装置、３…油槽、５…圧油タンク、７…小型圧油タンク、９…油供給用配管、１１…油用バルブ、１３…空気用バルブ、１５…ポンプ、１７…排出用配管、１８…排出用配管、２５…制御手段、３０…被駆動機器 DESCRIPTION OF SYMBOLS 1 ... Pressure oil supply control apparatus, 3 ... Oil tank, 5 ... Pressure oil tank, 7 ... Small pressure oil tank, 9 ... Oil supply piping, 11 ... Oil valve, 13 ... Air valve, 15 ... Pump, 17 ... Discharge piping, 18 ... discharge piping, 25 ... control means, 30 ... driven equipment

Claims (2)

圧油により駆動される被駆動機器に対する圧油の供給を制御する圧油供給制御装置であって、
油を収容する油槽と、圧油を収容する圧油タンクと、該圧油タンクと配管接続され且つ前記圧油タンクよりも圧油収容量を小さく設定した小型圧油タンクと、前記油槽、圧油タンク、小型圧油タンク、及び前記被駆動機器との間を連接して油を供給する油供給用配管と、前記圧油タンクと前記小型圧油タンクとの間の油供給用配管に設置される油用バルブと、前記油用バルブを開放した状態で前記油槽から前記小型圧油タンクを経由して前記圧油タンクに油を供給するポンプと、前記圧油タンク内、及び前記小型圧油タンク内の各油を夫々前記油槽に排出する排出用配管と、を備え、
前記小型圧油タンク内の油圧を低下させる際には、前記油用バルブを閉じて前記圧油タンクから前記小型圧油タンクへの油の供給を阻止した状態で前記小型圧油タンク側の前記排出用配管から油を排出し、
前記小型圧油タンク内の油圧を高める場合には、前記油用バルブを開放することによって前記圧油タンク内の圧油を前記小型圧油タンク内に供給することを特徴とする圧油供給制御装置。 A pressure oil supply control device for controlling supply of pressure oil to a driven device driven by pressure oil,
An oil tank that contains oil, a pressure oil tank that contains pressure oil, a small pressure oil tank that is connected to the pressure oil tank and has a pressure oil capacity set smaller than that of the pressure oil tank, and the oil tank, pressure Installed in an oil tank, a small pressure oil tank, and an oil supply pipe that supplies oil by connecting between the driven device and an oil supply pipe between the pressure oil tank and the small pressure oil tank An oil valve, a pump that supplies oil from the oil tank to the pressure oil tank via the small pressure oil tank with the oil valve open, an inside of the pressure oil tank, and the small pressure A discharge pipe for discharging each oil in the oil tank to the oil tank,
When lowering the hydraulic pressure in the small pressure oil tank, the oil valve is closed and the supply of oil from the pressure oil tank to the small pressure oil tank is blocked. Drain the oil from the drain pipe,
When the hydraulic pressure in the small pressure oil tank is increased, the pressure oil supply control is characterized in that the pressure oil in the pressure oil tank is supplied into the small pressure oil tank by opening the oil valve. apparatus. 圧油により駆動される被駆動機器に対する圧油の供給を制御する圧油供給制御装置であって、
油を収容する油槽と、圧油を収容する圧油タンクと、該圧油タンクと配管接続され且つ前記圧油タンクよりも圧油収容量を小さく設定した小型圧油タンクと、前記油槽、圧油タンク、小型圧油タンク、及び前記被駆動機器との間を連接して油を供給する油供給用配管と、前記圧油タンクと前記小型圧油タンクとの間の油供給用配管に設置される油用バルブと、前記油用バルブを開放した状態で前記油槽から前記小型圧油タンクを経由して前記圧油タンクに油を供給するポンプと、前記圧油タンク内、及び前記小型圧油タンク内の各油を夫々前記油槽に排出する排出用配管と、を備え、
前記小型圧油タンク内の油圧を低下させる際には、前記油用バルブを閉じて前記圧油タンクから前記小型圧油タンクへの油の供給を阻止した状態で前記小型圧油タンク側の前記排出用配管から油を排出し、
前記小型圧油タンク内の油圧を高める場合には、前記油用バルブを閉じた状態で前記ポンプによって前記油槽から前記小型圧油タンクに油を供給することを特徴とする圧油供給制御装置。 A pressure oil supply control device for controlling supply of pressure oil to a driven device driven by pressure oil,
An oil tank that contains oil, a pressure oil tank that contains pressure oil, a small pressure oil tank that is connected to the pressure oil tank and has a pressure oil capacity set smaller than that of the pressure oil tank, and the oil tank, pressure Installed in an oil tank, a small pressure oil tank, and an oil supply pipe that supplies oil by connecting between the driven device and an oil supply pipe between the pressure oil tank and the small pressure oil tank An oil valve, a pump that supplies oil from the oil tank to the pressure oil tank via the small pressure oil tank with the oil valve open, an inside of the pressure oil tank, and the small pressure A discharge pipe for discharging each oil in the oil tank to the oil tank,
When lowering the hydraulic pressure in the small pressure oil tank, the oil valve is closed and the supply of oil from the pressure oil tank to the small pressure oil tank is blocked. Drain the oil from the drain pipe,
In the case of increasing the hydraulic pressure in the small pressure oil tank, the pressure oil supply control device is characterized in that oil is supplied from the oil tank to the small pressure oil tank by the pump with the oil valve closed.
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CN101937671B (en) * 2009-06-30 2013-09-11 卡西欧计算机株式会社 Electronic keyboard instrument
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Publication number Priority date Publication date Assignee Title
CN101937671B (en) * 2009-06-30 2013-09-11 卡西欧计算机株式会社 Electronic keyboard instrument
CN106089822A (en) * 2016-08-18 2016-11-09 苏州新协力机器制造有限公司 The top petrol tank of hot press and the hot press of application top petrol tank

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