JPH0279101A - Method for controlling number of pump - Google Patents
Method for controlling number of pumpInfo
- Publication number
- JPH0279101A JPH0279101A JP23190488A JP23190488A JPH0279101A JP H0279101 A JPH0279101 A JP H0279101A JP 23190488 A JP23190488 A JP 23190488A JP 23190488 A JP23190488 A JP 23190488A JP H0279101 A JPH0279101 A JP H0279101A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- pump
- water level
- drainage pump
- facility
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000009434 installation Methods 0.000 description 15
- 230000003247 decreasing effect Effects 0.000 description 10
- 230000007423 decrease Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Feedback Control In General (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、例えば都市部に流入した雨水等を河川に流す
排水設備の排水ポンプ制御に適用されるポンプ台数制御
方法に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a pump number control method applied to, for example, drainage pump control of drainage equipment that drains rainwater flowing into urban areas into rivers. .
（従来の技術）
第４図は排水設備の構成図であって、この排水設備には
複数の排水ポンプ設備１−１．１−２〜１−ｎが備えら
れている。そして、これら排水ポンプ設ＫＭ １−１〜
１−ｎは制御装置２によりポンプ井３の水位に応じて運
転台数が制御されている。ところで、各排水ポンプ設備
１−１〜１−ｎはそれぞれ同一構成となっており、排水
ポンプ設置１ｉｉｔ １−１により構成を説明すると、
機関４が備えられ、この機関４の回転シャフトに開閉自
在の継手５を介して減速機６が連結されている。そして
、この減速機６にポンプ７が接続されている。又、排水
管８には吐出し弁９が設けられている。(Prior Art) FIG. 4 is a block diagram of a drainage facility, which is equipped with a plurality of drainage pump facilities 1-1.1-2 to 1-n. And these drainage pump installation KM 1-1~
The number of pumps 1-n in operation is controlled by a control device 2 according to the water level of the pump well 3. By the way, each of the drainage pump equipment 1-1 to 1-n has the same configuration, and the configuration will be explained based on drainage pump installation 1iit 1-1.
An engine 4 is provided, and a reduction gear 6 is connected to a rotating shaft of the engine 4 via a joint 5 that can be opened and closed. A pump 7 is connected to this reducer 6. Further, the drain pipe 8 is provided with a discharge valve 9.
かかる構成の排水設備では水位が上昇、した場合、又水
位が減少した場合、次のような運転台数制御が実行され
る。先ず、水位が上昇した場合を第５図に示す運転制御
の流れ図を参照して説明する。In the drainage equipment having such a configuration, when the water level rises or decreases, the following control on the number of units in operation is executed. First, the case where the water level rises will be explained with reference to the flowchart of operation control shown in FIG.
制御装置２はステップｓｌにおいてポンプ井３の水位が
１合口の排水ポンプ７つまり排水ポンプ設備１−１の排
水ポンプ７を起動させる値に達したかを判断し、起動さ
せる水位に達したと判断すると次のステップｓ２におい
て同排水ポンプ設ｆ１１−１の機関４を始動させる。そ
して、機関４の回転速度が規定速度に到達すると、ステ
ップｓ４において継手５を閉じて機関４と減速機６とを
連結する。In step sl, the control device 2 determines whether the water level in the pump well 3 has reached a value that starts the drainage pump 7 of the first port, that is, the drainage pump 7 of the drainage pump equipment 1-1, and determines that the water level has reached the water level to start it. Then, in the next step s2, the engine 4 of the drainage pump installation f11-1 is started. Then, when the rotational speed of the engine 4 reaches the specified speed, the joint 5 is closed to connect the engine 4 and the reduction gear 6 in step s4.
これにより、排水ポンプ７が回転してその回転速度が規
定速度に達すると、ステップＳ５から８６に移って吐出
し弁９が開かれる。この結果、ポンプ井の雨水は河川等
を流される。As a result, when the drainage pump 7 rotates and its rotational speed reaches the specified speed, the process moves from step S5 to 86, and the discharge valve 9 is opened. As a result, rainwater from the pump wells is discharged into rivers, etc.
そうして、このように雨水を河川に流しても水位が上昇
して２合口の排水ポンプつまり排水ポンプ設備１−２の
排水ポンプ７を起動させる値に達すると、ステップＳ８
において制御装置２は排水ポンプ設備１−１の排水ポン
プ７を起動させたときと同様にして２合口の排水ポンプ
設（ｉｉｉｌ−２の排水ポンプ７を起動させる。つまり
、排水ポンプ設備１−２の機関４を始動させ、次にこの
機関４と減速機６とを連結し、次に吐出し弁９を開く。Then, even if the rainwater is discharged into the river in this way, when the water level rises and reaches a value that starts the drain pump 7 of the second outlet, that is, the drain pump 7 of the drain pump equipment 1-2, step S8
In this case, the control device 2 starts the drain pump 7 of the second outlet (III-2) in the same manner as when starting the drain pump 7 of the drain pump facility 1-1. The engine 4 is started, the engine 4 and the reduction gear 6 are connected, and the discharge valve 9 is opened.
これにより、各排水ポンプ設置１−１．１−２の各排水
ポンプ７．７が動作する。さらに水位が上昇すれば、上
記同様の動作により排水ポンプ設備１−３．１−４．・
・・１−ｎの各排水ポンプ７が次々と運転される。As a result, each drainage pump 7.7 of each drainage pump installation 1-1.1-2 operates. If the water level rises further, the drainage pump equipment 1-3.1-4.・
...1-n drainage pumps 7 are operated one after another.
次に水位が減少した場合を第６図に示す運転制御の流れ
図を参照して説明する。制御装置２はステップｓｌｌに
おいてポンプ井３の水位がｎ合口の排水ポンプ７つまり
排水ポンプ設ｆｔ １− ｎの排水ポンプ７を停止させ
る値に減少したかを判断し、停止させる水位に減少する
と次のステップｓ１２において機関４の回転速度を規定
速度以下に下げる。Next, the case where the water level decreases will be explained with reference to the flowchart of operation control shown in FIG. In step sll, the control device 2 determines whether the water level in the pump well 3 has decreased to a value that will stop the drain pump 7 at the joint n, that is, the drain pump 7 at the drain pump installation ft1-n, and if the water level has decreased to the level at which it will be stopped, the next step will be performed. In step s12, the rotational speed of the engine 4 is lowered below the specified speed.
そして、規定速度以下に下がると、ステップｓ１３にお
いて排水ポンプ設（ｉｉｉｉ １− ｎの吐出し弁９を
閉じ、続いてステップｓ１４において同段Ｑ １− ｎ
（７）継手５を開く。そうして、制御装置２はステッ
プｓ１５において排水ポンプ設備１−ｎの機関４を停止
させる。さらに水位が減少すれば、以上の停止動作と同
様に排水ポンプ設（ｉｉｌ−ｎ−１の機関４の回転速度
が規定速度以下に下げられ、次に吐出し弁９が閉じられ
、次に継手が閉じられ、そうして機関４が停止される。When the speed drops below the specified speed, the discharge valve 9 of the drainage pump equipment (iii 1-n) is closed in step s13, and then the discharge valve 9 of the same stage Q 1-n is closed in step s14.
(7) Open the joint 5. Then, the control device 2 stops the engine 4 of the drainage pump equipment 1-n in step s15. If the water level further decreases, the rotational speed of the engine 4 of the drainage pump installation (IIL-N-1) is lowered to the specified speed or less, the discharge valve 9 is closed, and the joint is is closed and the engine 4 is then stopped.
以下、水位が減少するに従って排水ポンプ設ｆｉｉｉ
１− ｎ−２，’ １− ｎ−３゜・・・１−１の排水
ポンプ７が順次停止される。Below, as the water level decreases, the drainage pump will be installed.
1-n-2,' 1-n-3°...The drainage pumps 7 of 1-1 are stopped in sequence.
ところが、以上のような各運転制御方法では、機関４の
始動から吐出し弁９を開くまで、及び吐出し弁９を閉じ
てから機関４を停止させるまでの時間が長くかかってし
まう。このため、例えばポンプ井３への雨水の流入量が
急激に変化して水位変動が大きくなった場合、この急激
な水位に変化に対して追従して運転できない問題がある
。However, in each of the above operation control methods, it takes a long time from starting the engine 4 to opening the discharge valve 9 and from closing the discharge valve 9 to stopping the engine 4. For this reason, for example, when the amount of rainwater flowing into the pump well 3 suddenly changes and the water level fluctuates greatly, there is a problem that the pump cannot operate to follow this sudden change in water level.
（発明が解決しようとする課題）
以上のように上記運転制御方法では急激な水位変動に対
して追従できない問題がある。(Problems to be Solved by the Invention) As described above, the above operation control method has the problem of not being able to follow rapid water level fluctuations.
そこで本発明は、急激な水位変動が生じてもこの水位変
動に応じて確実に各排水ポンプを運転制御できるポンプ
台数制御方法を提供することを目的とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for controlling the number of pumps that can reliably control the operation of each drainage pump according to the water level fluctuation even if a sudden water level fluctuation occurs.
［発明の構成］
（課題を解決するための手段と作用）
本発明は、水位等に応じてポンプの運転台数を制御する
ポンプ台数制御方法において、水位の変動方向に応じて
次に起動するポンプ又は次に停止するポンプに回転動力
を与える機関をアイドリング状態にして上記目的を達成
しようとするポンプ台数制御方法である。[Structure of the Invention] (Means and Effects for Solving the Problems) The present invention provides a pump number control method for controlling the number of operating pumps according to water level etc. Alternatively, there is a method of controlling the number of pumps in which the engine that provides rotational power to the next pump to be stopped is placed in an idling state to achieve the above objective.
（実施例）
以下、本発明の一実施例について図面を参照して説明す
る。なお、第４図と同一部分には同一符号を付してその
詳しい説明は省略する。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. Note that the same parts as in FIG. 4 are given the same reference numerals, and detailed explanation thereof will be omitted.
第１図は本発明のポンプ台数制御方法を適用した排水設
備の全体構成図である。制御装置１０は各排水ポンプ設
！１１〜１−ｎをポンプ井３の水位に応じてその運転台
数を制御する機能を有するもので、特にこの制御装置１
０には、水位の変動方向に応じて次に起動する排水ポン
プ７、又は次に停止する排水ポンプ７に回転動力を与え
る機関４をアイドリング状態にするアイドリング状態作
成部１１の機能が備えられている。FIG. 1 is an overall configuration diagram of a drainage facility to which the pump number control method of the present invention is applied. The control device 10 is equipped with each drainage pump! It has a function of controlling the number of pumps 11 to 1-n in operation according to the water level of the pump well 3, and in particular, this control device 1
0 is equipped with the function of an idling state creating unit 11 that puts the engine 4, which provides rotational power to the drain pump 7 to start next or to the drain pump 7 to stop next, into an idling state depending on the direction of water level fluctuation. There is.
次に作用について説明する。Next, the effect will be explained.
先ず、水位が上昇した場合を第２図に示す運転制御の流
れ図を参照して説明する。制御装置１０はステップｅ１
においてポンプ井３の水位が１合口の排水ポンプ７つま
り排水ポンプ設備１−１の排水ポンプ７を起動させる値
に達したかを判断し、起動させる水位に達したと判断す
ると次のステ・ツブｅ２において同排水ポンプ設置ｉｉ
ｉ １−１の機関４を始動させる。そして、機関４の回
転速度が規定速度に到達すると、ステップｅ４において
継手５を閉じて機関４と減速機６とを連結する。これに
より排水ポンプ７が回転してその回転速度が規定速度に
達すると、ステップｃ５から０６に移って吐出し弁９を
開く。この結果、ポンプ井の雨水は河川等を流される。First, the case where the water level rises will be explained with reference to the flowchart of operation control shown in FIG. The control device 10 performs step e1
At this point, it is determined whether the water level of the pump well 3 has reached a value that starts the drainage pump 7 of the first port, that is, the drainage pump 7 of the drainage pump equipment 1-1. Installed the same drainage pump in e2 II
i Start engine 4 of 1-1. When the rotational speed of the engine 4 reaches the specified speed, the joint 5 is closed to connect the engine 4 and the reduction gear 6 in step e4. As a result, when the drainage pump 7 rotates and its rotational speed reaches the specified speed, the process moves from step c5 to step 06, and the discharge valve 9 is opened. As a result, rainwater from the pump wells is discharged into rivers, etc.
ところで、以上のステップ０２〜Ｃ６の実行と同時に制
御装置１０のアイドリング状態作成部１１はステップｃ
７〜ｅｌＯを実行する。すなわち、アイドリング状態作
成部１１はステップＣ７において２台目の機関４つまり
排水ポンプ設備１−２の機関４を始動する。そして、こ
の状態つまり機関４を無負荷状態で運転するアイドリン
グ状態とする。この状態に制御装置１０はステップｅ９
において水位変化が上昇か減少かを判断して上昇であれ
ばステップｅｌＯに移って同段（ｉｉｔ １−２の機関
４を規定速度で回転させる。By the way, at the same time as the above steps 02 to C6 are executed, the idling state creation unit 11 of the control device 10 executes step c.
7-Execute elO. That is, the idling state creation unit 11 starts the second engine 4, that is, the engine 4 of the drainage pump equipment 1-2, in step C7. Then, this state is set as an idling state in which the engine 4 is operated under no load. In this state, the control device 10 performs step e9.
It is determined whether the water level change is rising or decreasing, and if it is rising, the process moves to step elO and the engine 4 of the same stage (iit 1-2) is rotated at the specified speed.
この状態に水位が上昇して排水ポンプ設備１−２の排水
ポンプ７を起動させる水位に達すると、制御装置１０は
ステップｅｌｆからｅ１２に移って排水ポンプ設置１ｉ
１２の継手５を閉じて機関４と減速機６とを連結する。When the water level rises in this state and reaches a water level that starts the drain pump 7 of the drain pump equipment 1-2, the control device 10 moves from step elf to e12 and moves to the drain pump installation 1i.
12 joints 5 are closed to connect the engine 4 and the reduction gear 6.
なお、このとき機関４は既に規定速度で回転している。Note that at this time, the engine 4 is already rotating at the specified speed.
これにより、排水ポンプ７が回転してその回転速度が規
定速度に達すると、制御装置１０はステップｃ１４にお
いて吐出し弁９を開く。As a result, when the drainage pump 7 rotates and its rotational speed reaches the specified speed, the control device 10 opens the discharge valve 9 in step c14.
さて、このように排水ポンプ設６；ｉｌｌとともに排水
ポンプ設６ｉ １−２を運転状態とすると、こ・れと同
時に制御装置１０はステップｅ１５において３台目つま
り排水ポンプ設６ｉｉ１１−３の機関４をアイドリング
状態とする。つまり、制御装置１０のアイドリング状態
作成部１１は上記ステップｃ７〜ｅｌ口と同様にして３
台目の機関４つまり排水ポンプ設Ｒ１−３の機関４を始
動して無負荷状態で運転させる。そして、この状態に制
御装置１０は水位変化が上昇か減少かを判断して上昇で
あれば同段（ｉｉｉ １−３の機関４を規定速度で回転
させる。Now, when the drainage pump installation 6i 1-2 is brought into operation together with the drainage pump installation 6; is in an idling state. That is, the idling state creation unit 11 of the control device 10 performs step 3 in the same manner as in steps c7 to el above.
The second engine 4, that is, the engine 4 of the drainage pump installation R1-3, is started and operated in a no-load state. In this state, the control device 10 determines whether the water level change is rising or decreasing, and if it is rising, it rotates the engine 4 of the same stage (iii 1-3) at a specified speed.
以下、同様に次に起動する排水ポンプ７の機関４をアイ
ドリング状態として水位の上昇に応じて継手５を閉じて
い（。Thereafter, in the same way, the engine 4 of the drain pump 7 to be started next is kept in an idling state, and the joint 5 is closed as the water level rises.
次に水位が減少した場合を第３図に示す運転制御の流れ
図を参照して説明する。制御装置１０はステップｒｌに
おいてポンプ井３の水位がｎ台目の排水ポンプ７つまり
排水ポンプ設（ｉｉ １− ｎの排水ポンプ７を停止さ
せる値に減少したかを判断し、停止させる水位に減少す
ると次のステップｒ２において機関４の回転速度を規定
速度以下に下げる。Next, the case where the water level decreases will be explained with reference to the flowchart of operation control shown in FIG. In step rl, the control device 10 determines whether the water level in the pump well 3 has decreased to a value that causes the n-th drainage pump 7, that is, the drainage pump 7 of the drainage pump installation (ii 1- Then, in the next step r2, the rotational speed of the engine 4 is lowered below the specified speed.
そして、規定速度以下に下がると、ステップ「３におい
て排水ポンプ設置１ｉｉ１− ｎの吐出し弁９を閉じ・
、続いてステップｒ４において同段（ｉｉｉｌ −ｎの
継手５を開く。このようにして継手５を開くと、次のス
テップｒ５において水位が減少方向であるかを判断する
。この判断により水位が減少方向であれば、ステップｒ
６において水位ポンプ設ｆｌ １− ｎの機関４はアイ
ドリング速度で回転される。又、ステップ「５の処理と
同時に制御装置１０はステップｒ７においてｎ−１台目
つまり水位ポンプ設備１− ｎ −２の排水ポンプ７を
停止させる水位かを判断する。When the speed drops below the specified speed, close the discharge valve 9 of the drain pump installation 1ii1-n in step 3.
Then, in step r4, the joint 5 of the same stage (iii-n) is opened. When the joint 5 is opened in this way, in the next step r5, it is determined whether the water level is in the decreasing direction. This determination causes the water level to decrease. If the direction, step r
At 6 the engine 4 of the water level pump installation fl 1-n is rotated at idling speed. Further, at the same time as the processing in step 5, the control device 10 determines in step r7 whether the water level is such that the drain pump 7 of the (n-1)th unit, that is, the water level pump equipment 1-n-2, is stopped.
この判断によりｎ−１台目の排水ポンプ７の停止水位に
減少していると、制御装置１０はステップｒ８において
ｎ−１台目の排水ポンプ７を停止アイドリング状態にす
る。つまり、このステップｒ８においては、上記ステッ
プ「２〜１’８の処理と同様の処理を実行する。つまり
、ポンプ井３の水位がｎ −１台目の排水ポンプ７を停
止させる値に減少したと判断すると、排水ポンプ設ｆａ
ｌ−ｎ−１の機関４の回転速度を規定速度以下に下げて
、その速度を規定速度以下に下げ、さらに排水ポンプ設
（ｉｉｉ＋１−〇の吐出し弁９を閉じ、続いて継手５を
開く。そして、排水ポンプ設ｆｉｉ＃１−ｎ−１の機関
４をアイドリング状態とする。又、以上のステップｒ８
の処理と同時に制御装置１０はステップ「９においてｎ
台目の機関４が停止される。According to this judgment, if the water level has decreased to the stop water level of the n-1th drainage pump 7, the control device 10 sets the n-1st drainage pump 7 to a stopped idling state in step r8. In other words, in this step r8, the same process as in steps 2 to 1'8 is executed. In other words, the water level in the pump well 3 has decreased to a value that stops the n-1th drainage pump 7. If it is determined that the drainage pump
Reduce the rotational speed of the engine 4 of l-n-1 to below the specified speed, then reduce the speed to below the specified speed, close the discharge valve 9 of the drainage pump equipment (iii+1-0), and then open the joint 5. .Then, the engine 4 of the drainage pump installation fii #1-n-1 is brought to an idling state.Also, the above step r8
At the same time as the processing of n in step 9, the control device 10
The second engine 4 is stopped.
以下、水位が減少するに従って次に停止する機関４を停
止アイドリング状態とする。そうして、制御装置１０は
ステップ１’ＩＯにおいて水位が１台目の排水ポンプ７
を停止させる値に減少したと判断すると、ステップＩ’
ｌｌにおいて排水ポンプ設備１−１の機関４の回転速度
を規定速度以下に下げて、その速度を規定速度以下に下
げ、次にステップｆ’１２において同段ｉＩｎの吐出し
弁９を閉じ、続いて継手５を開く。そして、ステップｆ
’１４において排水ポンプ設（ｉｆｆ １−１の機関４
を停止する。Thereafter, as the water level decreases, the next engine 4 to be stopped is put into a stopped idling state. Then, in step 1'IO, the control device 10 determines that the water level is the same as that of the first drainage pump 7.
When it is determined that the value has decreased to a value that stops the process, step I'
In step f'12, the rotational speed of the engine 4 of the drainage pump equipment 1-1 is lowered to below the specified speed, and then in step f'12, the discharge valve 9 of the same stage iIn is closed, and then Open the joint 5. And step f
In '14, drainage pump installation (if 1-1 engine 4
stop.
このように上記一実施例においては、水位の変動方向に
応じて次に起動する排水ポンプ７又は次に停止する排水
ポンプ７に回転動力を与える機関４をアイドリング状態
とするようにしたので、次に起動する排水ポンプ７を速
やかに起動することができるとともに次に停止する排水
ポンプ７を速やかに停止できる。従って、水位が急激に
変動してもこの変動に追従して短時間に排水ポンプ７の
台数を制御できる。又、このとき機関４は、水位が上昇
方向の場合に規定速度で運転し、又水位が減少方法の場
合にアイドリング速度で運転するので、使用するエネル
ギを少なくできて経済的である。さらに、水位を各サン
プリング周期毎に取り込むことにより水位変動を予測す
ることができ、これにより水位変動に対する運転台数の
追従性をより向上できる。In this way, in the above-mentioned embodiment, the engine 4 that provides rotational power to the drain pump 7 to be started next or to the drain pump 7 to be stopped next is in an idling state depending on the direction of water level fluctuation, so that The drain pump 7 that is started first can be started quickly, and the drain pump 7 that is to be stopped next can be stopped quickly. Therefore, even if the water level fluctuates rapidly, the number of drain pumps 7 can be controlled in a short time by following this fluctuation. Further, at this time, the engine 4 operates at a specified speed when the water level is rising, and operates at an idling speed when the water level is decreasing, so it is economical to use less energy. Furthermore, by taking in the water level at each sampling period, water level fluctuations can be predicted, thereby making it possible to further improve the followability of the number of operating vehicles to water level fluctuations.
なお、本発明は上記一実施例に限定されるものでなくそ
の主旨を逸脱しない範囲で変形してもよい。例えば、上
記実施例では水位制御に適用した場合について説明した
が、流入流出する流体の制御に対しても適用できる。又
、２台以上同時に起動する設備であれば、２台以上の排
水ポンプを同時にアイドリング状態とすればよく、この
場合水位の急激な変動に対してより追従性が向上する。Note that the present invention is not limited to the above-mentioned embodiment, and may be modified without departing from the spirit thereof. For example, in the above embodiment, a case where the present invention is applied to water level control has been described, but it can also be applied to control of inflowing and outflowing fluid. In addition, if the equipment is such that two or more drainage pumps are started at the same time, two or more drainage pumps may be placed in an idling state at the same time, and in this case, the ability to follow sudden changes in water level is further improved.
［発明の効果］
以上詳記したように本発明によれば、急激な水位変動が
生じてもこの水位変動に応じて確実に各排水ポンプを運
転制御できるポンプ台数制御方法を提供できる。[Effects of the Invention] As described in detail above, according to the present invention, it is possible to provide a method for controlling the number of pumps that can reliably control the operation of each drainage pump in accordance with the water level fluctuation even if a rapid water level fluctuation occurs.
第１図乃至第３図は本発明に係わるポンプ台数制御方法
を説明するための図であって、第１図は同方法を適用し
た排水設備の構成図、第２図は水位上昇時の台数制御流
れ図、第３図は水位減少時の台数制御流れ図、第４図乃
至第６図は従来技術を説明するための図である。
１−１〜１−ｎ・・・排水ポンプ設備、３・・・ポンプ
井、４・・・機関、５・・・継手、６・・・減速機、７
・・・排水ポンプ、９・・・吐出し弁、１０・・・制御
装置、１１・・・アイドリング状態作成部。
出願人代理人 弁理士 鈴江武彦
第５図
第６図Figures 1 to 3 are diagrams for explaining the method for controlling the number of pumps according to the present invention, where Figure 1 is a configuration diagram of drainage equipment to which the method is applied, and Figure 2 is the number of pumps when the water level rises. FIG. 3 is a control flowchart for controlling the number of units when the water level decreases, and FIGS. 4 to 6 are diagrams for explaining the prior art. 1-1 to 1-n...Drainage pump equipment, 3...Pump well, 4...Engine, 5...Joint, 6...Reducer, 7
... Drain pump, 9... Discharge valve, 10... Control device, 11... Idle state creation section. Applicant's agent Patent attorney Takehiko Suzue Figure 5 Figure 6
Claims (1)
制御方法において、前記水位の変動方向に応じて次に起
動するポンプ又は次に停止するポンプに回転動力を与え
る機関をアイドリング状態にすることを特徴とするポン
プ台数制御方法。In a pump number control method that controls the number of operating pumps according to the water level, etc., an engine that provides rotational power to the next pump to start or the next pump to stop is placed in an idling state depending on the direction of the water level fluctuation. Features a method for controlling the number of pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63231904A JPH0789282B2 (en) | 1988-09-16 | 1988-09-16 | Pump number control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63231904A JPH0789282B2 (en) | 1988-09-16 | 1988-09-16 | Pump number control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0279101A true JPH0279101A (en) | 1990-03-19 |
| JPH0789282B2 JPH0789282B2 (en) | 1995-09-27 |
Family
ID=16930870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63231904A Expired - Fee Related JPH0789282B2 (en) | 1988-09-16 | 1988-09-16 | Pump number control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0789282B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04148098A (en) * | 1990-10-11 | 1992-05-21 | Kubota Corp | Method of operating horizontal shaft pump |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7874809B2 (en) | 2003-10-07 | 2011-01-25 | Ebara Corporation | Water-lifting pump apparatus and method for controlling operation thereof |
| JP5211890B2 (en) * | 2008-06-25 | 2013-06-12 | 株式会社明電舎 | Pump number control method and apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50144111A (en) * | 1974-05-10 | 1975-11-19 | ||
| JPS60135683A (en) * | 1983-12-26 | 1985-07-19 | Hitachi Ltd | Control of water discharging pump |
-
1988
- 1988-09-16 JP JP63231904A patent/JPH0789282B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50144111A (en) * | 1974-05-10 | 1975-11-19 | ||
| JPS60135683A (en) * | 1983-12-26 | 1985-07-19 | Hitachi Ltd | Control of water discharging pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04148098A (en) * | 1990-10-11 | 1992-05-21 | Kubota Corp | Method of operating horizontal shaft pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0789282B2 (en) | 1995-09-27 |
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