JPH1089262A - Pump control device - Google Patents
Pump control deviceInfo
- Publication number
- JPH1089262A JPH1089262A JP26367796A JP26367796A JPH1089262A JP H1089262 A JPH1089262 A JP H1089262A JP 26367796 A JP26367796 A JP 26367796A JP 26367796 A JP26367796 A JP 26367796A JP H1089262 A JPH1089262 A JP H1089262A
- Authority
- JP
- Japan
- Prior art keywords
- current value
- motor
- main control
- pump
- control device
- 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
Links
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、ポンプ制御装置に
関する。[0001] The present invention relates to a pump control device.
【0002】[0002]
【従来の技術】従来、ポンプの吐出圧力を制御する装置
として、例えば、圧力スイッチ、圧力センサー等にて配
管内圧力を計測、監視しつつ、ポンプ駆動用のモータの
回転数を制御するように構成したものが公知であった。2. Description of the Related Art Conventionally, as a device for controlling the discharge pressure of a pump, for example, a pressure switch, a pressure sensor or the like is used to measure and monitor the pressure in a pipe while controlling the rotation speed of a pump driving motor. What was constructed was known.
【0003】[0003]
【発明が解決しようとする課題】しかし、上述のよう
に、圧力スイッチや圧力センサー等を使用すると、スラ
リー、スラッジ、モルタル、コンクリート等の固形物混
入液や、接着剤等の固化し易い流体を移送する場合、摩
擦、破損、堆積等が発生し易いという問題があり、隔膜
とそれを取付ける特殊配管を使用した場合でも、摩耗、
破損、堆積等の問題を解決できるとは限らなかった。さ
らには、清掃、調整、部品交換等の手間、ランニングコ
ストの増大等の問題、装置や設備の巨大化等の問題があ
った。However, as described above, when a pressure switch, a pressure sensor, or the like is used, a liquid containing solids such as slurry, sludge, mortar, concrete, or a fluid that easily solidifies, such as an adhesive, is used. When transporting, there is a problem that friction, breakage, sedimentation, etc. are likely to occur, and even if a diaphragm and special piping for attaching it are used,
Problems such as breakage and sedimentation could not always be solved. Further, there are problems such as trouble of cleaning, adjustment, parts replacement, etc., increase of running cost, and enlargement of devices and facilities.
【0004】そこで、本発明は、上述の問題を解決し
て、故障が少なく、かつ、メンテナンスが容易であり、
さらに、設備をコンパクトとすることができるポンプ制
御装置を提供することを目的とする。Therefore, the present invention solves the above-mentioned problems, and has few failures and easy maintenance.
It is another object of the present invention to provide a pump control device capable of making the equipment compact.
【0005】[0005]
【課題を解決するための手段】上述の目的を達成するた
めに本発明に係るポンプ制御装置は、ポンプを駆動させ
るモータと電源との間に電気的に接続される主制御手段
と、該主制御手段と上記モータとの間にて該モータの入
力電流値を検出して検出信号を出力する電流値検出手段
とを、備えると共に、該電流値検出手段からの検出信号
を受けて該検出信号と基準値とを比較演算して制御動作
信号を上記主制御手段へ出力する比較演算手段を設け、
該比較演算手段から上記主制御手段に送られる制御動作
信号に対応して該主制御手段の出力を増減して、上記モ
ータの回転数を制御するように構成したものである。In order to achieve the above-mentioned object, a pump control device according to the present invention comprises: a main control means electrically connected between a motor for driving a pump and a power supply; Current value detecting means for detecting an input current value of the motor and outputting a detection signal between the control means and the motor, and receiving the detection signal from the current value detecting means to detect the detection signal. And a comparison operation means for comparing and calculating a reference value and outputting a control operation signal to the main control means,
The output of the main control means is increased or decreased in response to a control operation signal sent from the comparison operation means to the main control means to control the rotation speed of the motor.
【0006】なお、電流値検出手段にて検出された電流
値に対応して、主制御手段の出力が複数段階又は無段階
に変化し、それに伴ってモータMの回転数が複数段階又
は無段階に変化するように構成するのが好ましい。ま
た、電流値検出手段にて検出された電流値が所定上限値
を越えたときにモータの回転数が低下し、所定下限値未
満となったときにモータの回転数が上昇するように構成
するも望ましい。In accordance with the current value detected by the current value detecting means, the output of the main control means changes in a plurality of steps or in a stepless manner. It is preferable to be configured to change to Further, the motor speed is reduced when the current value detected by the current value detecting means exceeds a predetermined upper limit value, and the motor speed is increased when the current value is smaller than the predetermined lower limit value. Is also desirable.
【0007】また、電流値検出手段にて検出された電流
値が所定上限値を越えたときにモータが逆回転し、か
つ、所定時間後に該モータが正回転するように構成する
のが好ましい。また、電流値検出手段にて検出された電
流値が保全上限値を越えたときに、モータが停止するよ
うに構成するのが望ましい。It is preferable that the motor be rotated reversely when the current value detected by the current value detecting means exceeds a predetermined upper limit, and that the motor be rotated forward after a predetermined time. Further, it is desirable that the motor be stopped when the current value detected by the current value detecting means exceeds the maintenance upper limit value.
【0008】[0008]
【発明の実施の形態】以下、図示の実施の形態に基き本
発明を詳説する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on the illustrated embodiments.
【0009】図1は本発明に係るポンプ制御装置の実施
の一形態を示し、このポンプ制御装置は、ポンプ1を駆
動させるモータMと電源2との間に電気的に接続される
主制御手段3と、その主制御手段3とモータMとの間に
てモータMの入力電流値を検出して検出信号Aを出力す
る電流値検出手段4とを、備える。また、電流値検出手
段4からの検出信号Aを受けてその検出信号Aと基準値
とを比較演算して制御動作信号Bを主制御手段3へ出力
する比較演算手段5を設ける。FIG. 1 shows an embodiment of a pump control device according to the present invention. The pump control device comprises a main control means electrically connected between a motor M for driving a pump 1 and a power supply 2. 3, and a current value detecting means 4 for detecting an input current value of the motor M and outputting a detection signal A between the main control means 3 and the motor M. Also provided is a comparison operation means 5 which receives the detection signal A from the current value detection means 4, compares the detection signal A with a reference value, and outputs a control operation signal B to the main control means 3.
【0010】モータMとしては、3相誘導電動機が使用
される。また、電流値検出手段4は、整流回路と電流タ
ップ整定回路を有する電流コンバータから成り、モータ
Mの入力電流を、比較演算手段5にて比較演算できるよ
うな検出信号Aにリアルタイムで変換するように構成さ
れる。As the motor M, a three-phase induction motor is used. The current value detecting means 4 is composed of a current converter having a rectifier circuit and a current tap setting circuit, and converts the input current of the motor M into a detection signal A which can be compared and calculated by the comparing and calculating means 5 in real time. It is composed of
【0011】また、比較演算手段5は、電流整定回路と
比較演算回路を有し、その比較演算回路には、基準値が
予め又はリアルタイムで入力される。即ち、このポンプ
制御装置は、比較演算手段5に基準値を予め又はリアル
タイムで入力する入力設定手段6を有し、その基準値は
キー入力等により入力される。そして、比較演算手段5
は、検出信号Aの受信に連動してリアルタイムで制御動
作信号Bを出力するように構成される。The comparison operation means 5 has a current setting circuit and a comparison operation circuit, and a reference value is input to the comparison operation circuit in advance or in real time. That is, this pump control device has input setting means 6 for inputting a reference value to the comparison operation means 5 in advance or in real time, and the reference value is input by key input or the like. And the comparison operation means 5
Is configured to output the control operation signal B in real time in conjunction with the reception of the detection signal A.
【0012】主制御手段3は、例えば、インバーター、
シーケンサ等を有し、比較演算手段5からの制御動作信
号Bを受けて、出力Q(出力電流乃至出力電圧)が増減
するように構成される。なお、主制御手段3は、制御内
容により、リレー等を有する場合もある。The main control means 3 includes, for example, an inverter,
It has a sequencer and the like, and is configured so that the output Q (output current or output voltage) increases or decreases in response to the control operation signal B from the comparison operation means 5. The main control means 3 may have a relay or the like depending on the control content.
【0013】しかして、電流値検出手段4にて検出され
た電流値に対応して、主制御手段3の出力Qが複数段階
に変化し、それに伴ってモータMの回転数が複数段階に
変化するように構成する。Thus, the output Q of the main control means 3 changes in a plurality of steps corresponding to the current value detected by the current value detecting means 4, and the rotation speed of the motor M changes in a plurality of steps accordingly. It is constituted so that.
【0014】ここで、ポンプ1の吐出圧力が高くなる
と、モータMの負荷が大きくなり、それに伴って、モー
タMの入力電流値が小さくなる。逆に、ポンプ1の吐出
圧力が低くなると、モータMの負荷が小さくなり、それ
に伴って、モータMの入力電流値が大きくなる。Here, as the discharge pressure of the pump 1 increases, the load on the motor M increases, and accordingly, the input current value of the motor M decreases. Conversely, when the discharge pressure of the pump 1 decreases, the load on the motor M decreases, and accordingly, the input current value of the motor M increases.
【0015】従って、ポンプ1の吐出圧力の変化にモー
タMの入力電流値の変化が連動するので、モータMの入
力電流値を監視すれば、間接的にポンプ1の吐出圧力が
分かり、その入力電流値の変化に連動して主制御手段3
の出力Qを変化させれば、ポンプ1の吐出圧力を制御で
きる。Therefore, since the change in the input current value of the motor M is linked to the change in the discharge pressure of the pump 1, monitoring the input current value of the motor M allows the discharge pressure of the pump 1 to be indirectly known. Main control means 3 in conjunction with a change in the current value
, The discharge pressure of the pump 1 can be controlled.
【0016】しかして、ポンプ1の吐出圧力の制御方法
を説明すると、電流値検出手段4にて検出された電流値
に対応して、主制御手段3の出力Qを複数段階に変化さ
せ、それに伴ってモータMの回転数を複数段階に変化さ
せる。これにより、ポンプ1の吐出圧力を所望の圧力に
ほぼ一定に保持することができる。A method of controlling the discharge pressure of the pump 1 will now be described. In response to the current value detected by the current value detecting means 4, the output Q of the main control means 3 is changed in a plurality of stages. Accordingly, the rotation speed of the motor M is changed in a plurality of stages. As a result, the discharge pressure of the pump 1 can be kept almost constant at a desired pressure.
【0017】上述のように、このポンプ制御装置によれ
ば、圧力スイッチ、圧力センサー等の流体に直接触れる
部品を使用することなく、ポンプの吐出圧力を監視、制
御することができる。従って、スラリー、スラッジ、モ
ルタル、コンクリート等の固形物混入液や、接着剤等の
固形化しやすい液等を移送する場合でも、摩耗、破損、
堆積等が発生し難くなる。また、流体の種類、性状を問
わず使用できる。さらに、設備のコンパクト化を図るこ
とができる。As described above, according to the pump control device, the discharge pressure of the pump can be monitored and controlled without using components such as a pressure switch and a pressure sensor that directly contact the fluid. Therefore, even when transferring a solid-mixed liquid such as slurry, sludge, mortar, and concrete, and a liquid that easily solidifies, such as an adhesive, abrasion, breakage,
Deposition and the like hardly occur. Further, it can be used regardless of the type and properties of the fluid. Further, the equipment can be made compact.
【0018】なお、電流値検出手段4にて検出された電
流値に対応して、主制御手段3の出力Qが無段階に変化
し、それに伴ってモータMの回転数が無段階に変化する
ように構成するのも好ましい。そのようにすれば、ポン
プ1の吐出圧力を一層高精度に保持することができる。The output Q of the main control means 3 changes steplessly in accordance with the current value detected by the current value detecting means 4, and the rotation speed of the motor M changes steplessly. It is also preferable to configure as follows. By doing so, the discharge pressure of the pump 1 can be maintained with higher accuracy.
【0019】また、電流値検出手段4にて検出された電
流値が所定上限値を越えたときにモータMの回転数が低
下し、所定下限値未満となったときにモータMの回転数
が上昇するように構成してもよい。そのようにすれば、
比較演算手段5と主制御手段3の制御を単純化できると
共に、構成部品を簡素化できる。When the current value detected by the current value detecting means 4 exceeds a predetermined upper limit value, the rotation speed of the motor M decreases, and when the current value is less than the predetermined lower limit value, the rotation speed of the motor M decreases. It may be configured to rise. If you do that,
The control of the comparison operation means 5 and the main control means 3 can be simplified, and the components can be simplified.
【0020】また、電流値検出手段4にて検出された電
流値が所定上限値を越えたときにモータMが逆回転し、
かつ、所定時間後にそのモータMが正回転するように構
成するのも好ましい。そのようにすれば、ポンプ1の吐
出圧力が急上昇した際に、迅速に圧力を低下させること
ができる。従って、故障や事故を防止できる。When the current value detected by the current value detection means 4 exceeds a predetermined upper limit, the motor M rotates in the reverse direction,
It is also preferable that the motor M is rotated forward after a predetermined time. By doing so, when the discharge pressure of the pump 1 rises sharply, the pressure can be quickly reduced. Therefore, failures and accidents can be prevented.
【0021】また、電流値検出手段4にて検出された電
流値が保全上限値を越えたときに、モータMが停止する
ように構成してもよい。そのようにすれば、過電流等か
らモータMを保護することができると共に、故障や火災
等の事故の発生を防止できる。Further, the motor M may be configured to stop when the current value detected by the current value detecting means 4 exceeds the maintenance upper limit value. By doing so, the motor M can be protected from overcurrent and the like, and at the same time, occurrence of an accident such as a failure or a fire can be prevented.
【0022】[0022]
【発明の効果】本発明は上述の構成により、次のような
著大な効果を奏する。The present invention has the following remarkable effects by the above-mentioned structure.
【0023】請求項1記載のポンプ制御装置によれば、
圧力スイッチ、圧力センサー等の流体に直接触れる部品
を使用することなく、ポンプの吐出圧力を監視、制御す
ることができる。従って、スラリー、スラッジ、モルタ
ル、コンクリート等の固形物混入液や、接着剤等の固形
化しやすい液等を移送する場合でも、摩耗、破損、堆積
等が発生し難くなる。また、流体の種類、性状を問わず
使用できる。さらに、設備のコンパクト化を図ることが
できる。さらに、ランニングコストの減少に貢献でき
る。According to the pump control device of the first aspect,
The discharge pressure of the pump can be monitored and controlled without using components that directly touch the fluid, such as a pressure switch and a pressure sensor. Therefore, abrasion, breakage, sedimentation, and the like are less likely to occur even when transferring a solid-mixed liquid such as slurry, sludge, mortar, and concrete, or a liquid that easily solidifies, such as an adhesive. Further, it can be used regardless of the type and properties of the fluid. Further, the equipment can be made compact. Further, it can contribute to a reduction in running costs.
【0024】請求項2記載のポンプ制御装置によれば、
請求項1記載のものと同様の効果を奏すると共に、ポン
プ1の吐出圧力を所望の圧力に高精度に保持することが
できる。According to the pump control device of the second aspect,
The same effect as that of the first aspect is obtained, and the discharge pressure of the pump 1 can be maintained at a desired pressure with high accuracy.
【0025】請求項3記載のポンプ制御装置によれば、
請求項1記載のものと同様の効果を奏すると共に、比較
演算手段5と主制御手段3の制御を単純化できると共
に、構成部品を簡素化できる。According to the pump control device of the third aspect,
The same effects as those of the first aspect are obtained, and the control of the comparison operation means 5 and the main control means 3 can be simplified, and the components can be simplified.
【0026】請求項4記載のポンプ制御装置によれば、
請求項1,2又は3記載のものと同様の効果を奏すると
共に、ポンプ1の吐出圧力が急上昇した際に、迅速に圧
力を低下させることができる。従って、故障や事故を防
止できる。According to the pump control device of the fourth aspect,
The same effects as those of the first, second, and third aspects can be obtained, and when the discharge pressure of the pump 1 rises rapidly, the pressure can be rapidly reduced. Therefore, failures and accidents can be prevented.
【0027】請求項5記載のポンプ制御装置によれば、
請求項1,2,3又は4記載のものと同様の効果を奏す
ると共に、過電流等からモータMを保護することができ
る。かつ、故障や火災等の事故の発生を防止できる。According to the pump control device of the fifth aspect,
The same effect as that of the first, second, third, or fourth aspect is obtained, and the motor M can be protected from overcurrent or the like. In addition, it is possible to prevent occurrence of accidents such as breakdowns and fires.
【図1】本発明の実施の一形態を示すブロック図であ
る。FIG. 1 is a block diagram showing an embodiment of the present invention.
1 ポンプ 2 電源 3 主制御手段 4 電流値検出手段 5 比較演算手段 A 検出信号 B 制御動作信号 M モータ Q 出力 Reference Signs List 1 pump 2 power supply 3 main control means 4 current value detection means 5 comparison calculation means A detection signal B control operation signal M motor Q output
Claims (5)
との間に電気的に接続される主制御手段3と、該主制御
手段3と上記モータMとの間にて該モータMの入力電流
値を検出して検出信号Aを出力する電流値検出手段4と
を、備えると共に、該電流値検出手段4からの検出信号
Aを受けて該検出信号Aと基準値とを比較演算して制御
動作信号Bを上記主制御手段3へ出力する比較演算手段
5を設け、該比較演算手段5から上記主制御手段3に送
られる制御動作信号Bに対応して該主制御手段3の出力
Qを増減して、上記モータMの回転数を制御するように
構成したことを特徴とするポンプ制御装置。1. A motor M for driving a pump 1 and a power supply 2.
Main control means 3 electrically connected between the main control means 3 and a current value detecting means for detecting an input current value of the motor M and outputting a detection signal A between the main control means 3 and the motor M Means 4 for receiving a detection signal A from the current value detection means 4, comparing the detection signal A with a reference value, and outputting a control operation signal B to the main control means 3. Means 5 for controlling the number of revolutions of the motor M by increasing or decreasing the output Q of the main control means 3 in response to the control operation signal B sent from the comparison operation means 5 to the main control means 3 A pump control device characterized in that:
に対応して、主制御手段3の出力Qが複数段階又は無段
階に変化し、それに伴ってモータMの回転数が複数段階
又は無段階に変化するように構成されている請求項1記
載のポンプ制御装置。2. The output Q of the main control means 3 changes in a plurality of steps or steplessly in accordance with the current value detected by the current value detecting means 4, and accordingly, the rotation speed of the motor M changes in a plurality of steps. The pump control device according to claim 1, wherein the pump control device is configured to change continuously.
が所定上限値を越えたときにモータMの回転数が低下
し、所定下限値未満となったときにモータMの回転数が
上昇するように構成されている請求項1記載のポンプ制
御装置。3. When the current value detected by the current value detection means 4 exceeds a predetermined upper limit, the rotation speed of the motor M decreases, and when the current value falls below the predetermined lower limit, the rotation speed of the motor M decreases. The pump control device according to claim 1, wherein the pump control device is configured to rise.
が所定上限値を越えたときにモータMが逆回転し、か
つ、所定時間後に該モータMが正回転するように構成さ
れている請求項1,2又は3記載のポンプ制御装置。4. The motor M is configured to rotate in a reverse direction when the current value detected by the current value detecting means 4 exceeds a predetermined upper limit value, and to rotate forward after a predetermined time. The pump control device according to claim 1, 2 or 3.
が保全上限値を越えたときに、モータMが停止するよう
に構成されている請求項1,2,3又は4記載のポンプ
制御装置。5. The pump according to claim 1, wherein the motor M is stopped when the current value detected by the current value detection means 4 exceeds a maintenance upper limit value. Control device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26367796A JPH1089262A (en) | 1996-09-11 | 1996-09-11 | Pump control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26367796A JPH1089262A (en) | 1996-09-11 | 1996-09-11 | Pump control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1089262A true JPH1089262A (en) | 1998-04-07 |
Family
ID=17392818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26367796A Pending JPH1089262A (en) | 1996-09-11 | 1996-09-11 | Pump control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1089262A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4626057B2 (en) * | 1999-04-28 | 2011-02-02 | 株式会社安川電機 | Pump jack pump-off control method and apparatus |
JP2021050695A (en) * | 2019-09-26 | 2021-04-01 | 日本電産トーソク株式会社 | Control device of electric oil pump, and electric oil pump |
-
1996
- 1996-09-11 JP JP26367796A patent/JPH1089262A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4626057B2 (en) * | 1999-04-28 | 2011-02-02 | 株式会社安川電機 | Pump jack pump-off control method and apparatus |
JP2021050695A (en) * | 2019-09-26 | 2021-04-01 | 日本電産トーソク株式会社 | Control device of electric oil pump, and electric oil pump |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8690542B2 (en) | Method and arrangement for soft start up of a pump system | |
JP2000110735A (en) | Pump protection system, pump protection method, and pump system | |
US5229558A (en) | Control of an elevator hoisting motor during under voltage conditions in the main power source | |
JPH1089262A (en) | Pump control device | |
US4525660A (en) | Control apparatus for inverter | |
EP2058518B1 (en) | Control device for a power unit | |
US4155427A (en) | Elevator system | |
JP2007236102A (en) | Controller of induction motor | |
JP4619052B2 (en) | Control method of pump | |
JPH0925874A (en) | Variable speed pumping system | |
KR102072908B1 (en) | Control method of multiple water pump start using soft starter | |
KR20170000174U (en) | Apparatus for monitoring hydraulic machines of vessel | |
JP2007288829A (en) | Method and device for detecting abnormality of machine | |
KR100849440B1 (en) | System integrated multi-purpose power controller | |
JPS5896190A (en) | Control device for pump operation | |
KR200434297Y1 (en) | System integrated multi-purpose power controller | |
JPH05137277A (en) | Uninterruptible power supply equipment | |
JPH06100936B2 (en) | Pressure water supply device | |
SU931974A1 (en) | Apparatus for controlling pumping unit | |
KR100219266B1 (en) | Velocity control type water-supply pressuring apparatus of a pump | |
JP3044822B2 (en) | Power factor control device | |
SU1077636A1 (en) | Apparatus for regulation of discharge of heavy fractions from jigging machine | |
JP2002317791A (en) | Reverse rotation detecting system | |
JP2603050Y2 (en) | Inverter device for pump control | |
JP2003199356A (en) | Inverter apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040113 |
|
A131 | Notification of reasons for refusal |
Effective date: 20040120 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040225 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20040518 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040614 |
|
A911 | Transfer of reconsideration by examiner before appeal (zenchi) |
Effective date: 20040623 Free format text: JAPANESE INTERMEDIATE CODE: A911 |
|
A912 | Removal of reconsideration by examiner before appeal (zenchi) |
Effective date: 20040827 Free format text: JAPANESE INTERMEDIATE CODE: A912 |