JPH062651A - Water controller - Google Patents
Water controllerInfo
- Publication number
- JPH062651A JPH062651A JP16116692A JP16116692A JPH062651A JP H062651 A JPH062651 A JP H062651A JP 16116692 A JP16116692 A JP 16116692A JP 16116692 A JP16116692 A JP 16116692A JP H062651 A JPH062651 A JP H062651A
- Authority
- JP
- Japan
- Prior art keywords
- water
- induction motor
- controller
- water level
- pump
- 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.)
- Withdrawn
Links
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は用水管理装置に関し、さ
らに詳しくは、水源に設置したポンプによって水をタン
クに補給しておき、タンクから生活用水、工業用水等の
用水を安定供給する用水管理装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water management apparatus, and more particularly, to a water management system for supplying water to a tank by a pump installed at a water source and stably supplying water such as domestic water and industrial water from the tank. It relates to the device.
【０００２】[0002]
【従来の技術】河川等の水源から水タンクに給水する装
置として、三相誘導電動機で駆動するポンプを使用する
ものがある。この装置の給水量の調節に、三相誘導電動
機の電源周波数を周波数変換器により変更する技術が知
られている。周波数変換器としては、通常、整流器とイ
ンバータを組合わせた装置（以下インバータという）が
用いられている。2. Description of the Related Art As a device for supplying water from a water source such as a river to a water tank, there is one that uses a pump driven by a three-phase induction motor. A technique for changing the power supply frequency of a three-phase induction motor with a frequency converter is known for adjusting the amount of water supply of this device. As the frequency converter, a device combining a rectifier and an inverter (hereinafter referred to as an inverter) is usually used.
【０００３】[0003]
【発明が解決しようとする課題】従来のインバータによ
り三相誘導電動機の電源周波数を変化させて、給水量を
調節する用水管理装置においては、電源周波数の変更
は、通常制御盤に設けたつまみを操作して行なってい
た。そのため、負荷側への給水量の変化に応じて、一旦
設定した周波数を頻繁に変更するの煩雑であるので、給
水量が変化しても電源周波数の切替操作は行なわず所定
の間、電動機は一定の速度で運転を継続していた。その
ため、必要以上の電力を消費していた。DISCLOSURE OF THE INVENTION In a water management device for adjusting the amount of water supply by changing the power supply frequency of a three-phase induction motor by a conventional inverter, the power supply frequency is usually changed by using a knob provided on a control panel. I was operating it. Therefore, it is complicated to frequently change the frequency once set in accordance with the change in the amount of water supplied to the load side. The operation was continued at a constant speed. Therefore, it consumed more power than necessary.
【０００４】本発明は、この無駄を排除するためのもの
であり、三相誘導電動機の電源周波数の変更を自動化し
て省力化および省電力化を図る用水管理装置を提供する
ことを課題とするものである。The present invention is intended to eliminate this waste, and it is an object of the present invention to provide a water management apparatus for automating the change of the power supply frequency of a three-phase induction motor to save labor and power. It is a thing.
【０００５】[0005]
【課題を解決するための手段】本発明は上述の問題を解
決するものであり、次の技術手段を採った。すなわち、
水タンクに給水する誘導電動機駆動のポンプと、該誘導
電動機に給電すると共に該電源周波数を可変とする周波
数変換器と、該水タンクの水位を検出する水位検出器
と、該水位により予め定められた補給水量の緩急補給速
度に対応する該誘導電動機の所要電源周波数を演算する
演算器と、該演算器の出力により該周波数変換器の出力
周波数を該所要電源周波数に設定すると共に該設定信号
の伝達を所定時間遅延させるように該誘導電動機を制御
する制御器とからなることを特徴とする用水管理装置で
ある。The present invention has been made to solve the above-mentioned problems and has adopted the following technical means. That is,
A pump driven by an induction motor for supplying water to the water tank, a frequency converter for supplying power to the induction motor and varying the power supply frequency, a water level detector for detecting the water level of the water tank, and a predetermined water level. And a computing unit for computing a required power supply frequency of the induction motor corresponding to the speed of the replenishment water, and an output of the computing unit for setting the output frequency of the frequency converter to the required power supply frequency and the setting signal A water management apparatus comprising a controller that controls the induction motor so as to delay transmission for a predetermined time.
【０００６】[0006]
【作用】誘導電動機の電源周波数をインバータによって
制御する方式は、高能率でしかも広い速度範囲にわたっ
て精度の高い制御が可能であるので、広く用いられてお
り、本発明もこの技術を利用したものである。本願は、
水位検出器より水タンクの水位を検出する。予め水位に
より、補給水量の補給速度を決めておき（タンクの水位
が下がる程補給速度を速くする）、補給速度に対応する
誘導電動機の所要電源周波数を演算器で演算し、この出
力で遅延回路を備えた制御器により誘導電動機の電源周
波数を所定値に制御する。The method of controlling the power supply frequency of the induction motor by the inverter is widely used because it is highly efficient and can perform highly accurate control over a wide speed range, and the present invention also utilizes this technique. is there. This application is
The water level in the water tank is detected by the water level detector. The replenishment rate of the amount of replenished water is determined in advance based on the water level (the lower the water level in the tank, the faster the replenishment rate), the required power supply frequency of the induction motor corresponding to the replenishment rate is calculated by the calculator, and the delay circuit The controller provided with controls the power frequency of the induction motor to a predetermined value.
【０００７】本発明は、このように構成されているの
で、水位の変化があったその都度、ポンプを作動させる
のではなく、誘導電動機の運転時間を必要最小限とした
ので、電源電力の浪費を防止することができる。さら
に、自動化することにより、操作要員をなくすことがで
きた。Since the present invention is constructed as described above, the pump is not operated each time there is a change in the water level, and the operating time of the induction motor is minimized. Can be prevented. Furthermore, automation has made it possible to eliminate operating personnel.
【０００８】[0008]
【実施例】図１は本発明の一実施例の系統説明図であ
る。１は本発明の用水管理装置の全体を示したものであ
る。２はタンク、３は現在の水位を示し、ポンプＰ2 に
よって図示していない系統に給水する。タンク２への水
は、ポンプＰ1 により深井戸７から汲上げられ供給され
る。１４は深井戸７の水位、６は給水管、１５はサクシ
ョンパイプである。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a system explanatory view of one embodiment of the present invention. 1 shows the whole water management apparatus of the present invention. 2 indicates a tank, 3 indicates the current water level, and water is supplied to a system (not shown) by a pump P 2 . The water to the tank 2 is pumped and supplied from the deep well 7 by the pump P 1 . Reference numeral 14 is a water level in the deep well 7, 6 is a water supply pipe, and 15 is a suction pipe.
【０００９】４は水位検出器であり、本実施例では電極
５を４本設け水位の変化を４段階（Ｌ4 、Ｌ3 、Ｌ2 、
Ｌ1 ）に分けて検知するようにしている。水位検出器４
の水位信号８は演算器１０に入力される。演算器１０の
演算結果は、制御器１１を介して周波数変換器（インバ
ータ）１２に入力され、所要の周波数の三相交流１３に
変換されて、導電動機Ｍに供給され、ポンプＰ1 を駆動
する。Reference numeral 4 denotes a water level detector. In this embodiment, four electrodes 5 are provided to change the water level in four steps (L 4 , L 3 , L 2 ,
L 1 ) is detected separately. Water level detector 4
The water level signal 8 is input to the calculator 10. The calculation result of the calculator 10 is input to the frequency converter (inverter) 12 via the controller 11, converted into a three-phase alternating current 13 of a required frequency, supplied to the conductive motive M, and drives the pump P 1 . To do.
【００１０】本実施例では、水位をＬ4 、Ｌ3 、Ｌ2 、
Ｌ1 の４段階にわけて検知するように構成され、 ア 水位Ｌ4 が上限でありここではポンプＰ1 は停止す
る。 イ 水位がＬ4 〜Ｌ3 にある時は、ポンプＰ1 は低速運
転する。 ウ 水位がＬ3 〜Ｌ2 にある時は、ポンプＰ1 は中速運
転する。In this embodiment, the water levels are L 4 , L 3 , L 2 ,
The detection is performed by dividing into four stages of L 1 , and the water level L 4 is the upper limit, and the pump P 1 is stopped here. When Lee water level is in the L 4 ~L 3, the pump P 1 is low speed operation. When the c level is in the L 3 ~L 2, the pump P 1 is operated medium speed.
【００１１】エ 水位がＬ2 〜Ｌ1 にある時は、ポンプ
Ｐ1 は高速運転する。 しかも、制御器１１には遅延回路（図示せず）を備えて
いるので、水位を検知しても直ちに導電動機Ｍを作動さ
せないで、所定時間の遅れを見て作動させるようにして
おり、水位の上下の度毎にポンプＰ1 の速度を頻繁に切
替えるのを防止している。When the water level is between L 2 and L 1 , the pump P 1 operates at high speed. Moreover, since the controller 11 is provided with a delay circuit (not shown), even if the water level is detected, the conductive motive M is not immediately activated, but is operated after a delay of a predetermined time. Frequent switching of the speed of the pump P 1 is prevented every time the pump P 1 goes up and down.
【００１２】図２は、工場全体の用水管理に本発明を適
用した系統説明図である。２ａ、２ｂ、２ｃ、２ｄ、２
ｅ、２ｆは水タンク群、７ａ、７ｂ、７ｃ、７ｄは深井
戸群、Ｐはポンプ群である。各ポンプＰの駆動に本発明
の用水管理装置を適用することにより、工場全体の用水
管理コストを大幅に削減することが可能となる。FIG. 2 is a system explanatory view in which the present invention is applied to the water management of the entire factory. 2a, 2b, 2c, 2d, 2
e and 2f are water tank groups, 7a, 7b, 7c and 7d are deep well groups, and P is a pump group. By applying the water management device of the present invention to the drive of each pump P, it becomes possible to significantly reduce the water management cost of the entire factory.
【００１３】[0013]
【発明の効果】本発明は運用経費を大幅に軽減すると共
に省力化に優れた効果を奏する。According to the present invention, the operating cost is greatly reduced and the labor saving is excellent.
【図１】本発明の一実施例の系統説明図である。FIG. 1 is a system explanatory diagram of an embodiment of the present invention.
【図２】工場全体の用水管理に本発明を適用した系統説
明図である。FIG. 2 is a system explanatory view in which the present invention is applied to water management of the entire factory.
１ 用水管理装置 ２、２ａ、２ｂ、２ｃ、２ｄ、２ｅ、２ｆ 水タンク ３ 水位 ４ 水位検出器 ５ 電極 ６ 給水管 ７、７ａ、７ｂ、７ｃ、７ｄ 深井戸 ８ 水位信号 ９ 制御盤 １０ 演算器 １１ 制御器 １２ 周波数変換器 １３ 三相交流 １４ 井戸の水位 １５ サクションパイプ Ｐ、Ｐ1 、Ｐ2 ポンプ Ｌ1 、Ｌ2 、Ｌ3 、Ｌ4 水位 Ｍ 誘導電動機1 Water management device 2, 2a, 2b, 2c, 2d, 2e, 2f Water tank 3 Water level 4 Water level detector 5 Electrode 6 Water supply pipe 7, 7a, 7b, 7c, 7d Deep well 8 Water level signal 9 Control panel 10 Operator 11 Controller 12 Frequency Converter 13 Three-phase AC 14 Water Level of Well 15 Suction Pipe P, P 1 , P 2 Pump L 1 , L 2 , L 3 , L 4 Water Level M Induction Motor
Claims (1)
ンプと、該誘導電動機に給電すると共に該電源周波数を
可変とする周波数変換器と、該水タンクの水位を検出す
る水位検出器と、該水位により予め定められた補給水量
の緩急補給速度に対応する該誘導電動機の所要電源周波
数を演算する演算器と、該演算器の出力により該周波数
変換器の出力周波数を該所要電源周波数に設定すると共
に該設定信号の伝達を所定時間遅延させるように該誘導
電動機を制御する制御器とからなることを特徴とする用
水管理装置。1. A pump driven by an induction motor for supplying water to a water tank, a frequency converter for supplying power to the induction motor and varying the power supply frequency, a water level detector for detecting the water level of the water tank, An arithmetic unit for calculating a required power supply frequency of the induction motor corresponding to a slow and rapid replenishment speed of a predetermined amount of replenishment water according to a water level, and an output frequency of the frequency converter is set to the required power supply frequency by the output of the arithmetic unit. And a controller for controlling the induction motor so as to delay transmission of the setting signal for a predetermined time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16116692A JPH062651A (en) | 1992-06-19 | 1992-06-19 | Water controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16116692A JPH062651A (en) | 1992-06-19 | 1992-06-19 | Water controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH062651A true JPH062651A (en) | 1994-01-11 |
Family
ID=15729856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16116692A Withdrawn JPH062651A (en) | 1992-06-19 | 1992-06-19 | Water controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH062651A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100686645B1 (en) * | 2005-05-27 | 2007-02-26 | 주식회사 다우 | Max efficiency operation of a pump and a control unit thereof |
| JP2008101827A (en) * | 2006-10-18 | 2008-05-01 | Hoshizaki Electric Co Ltd | Operation method of automatic ice making machine |
| US8545225B2 (en) | 2009-03-18 | 2013-10-01 | Kuraray Noritake Dental Inc. | Redox-curing type composition |
-
1992
- 1992-06-19 JP JP16116692A patent/JPH062651A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100686645B1 (en) * | 2005-05-27 | 2007-02-26 | 주식회사 다우 | Max efficiency operation of a pump and a control unit thereof |
| JP2008101827A (en) * | 2006-10-18 | 2008-05-01 | Hoshizaki Electric Co Ltd | Operation method of automatic ice making machine |
| US8545225B2 (en) | 2009-03-18 | 2013-10-01 | Kuraray Noritake Dental Inc. | Redox-curing type composition |
| JP5809974B2 (en) * | 2009-03-18 | 2015-11-11 | クラレノリタケデンタル株式会社 | Redox curable composition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990831 |