JPS63101905A - Operation monitor and control equipment for filter plant - Google Patents
Operation monitor and control equipment for filter plantInfo
- Publication number
- JPS63101905A JPS63101905A JP24748686A JP24748686A JPS63101905A JP S63101905 A JPS63101905 A JP S63101905A JP 24748686 A JP24748686 A JP 24748686A JP 24748686 A JP24748686 A JP 24748686A JP S63101905 A JPS63101905 A JP S63101905A
- Authority
- JP
- Japan
- Prior art keywords
- water
- flow rate
- operation plan
- water distribution
- value
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 131
- 238000004088 simulation Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000000746 purification Methods 0.000 claims description 7
- 238000012937 correction Methods 0.000 abstract description 10
- 230000007704 transition Effects 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000012806 monitoring device Methods 0.000 description 9
- 238000004062 sedimentation Methods 0.000 description 4
- 230000002123 temporal effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
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- Feedback Control In General (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、配水池あるいは浄水池（以下単に配水池と言
う）の容量を利用して沈でん・ろ適地の負荷変動、およ
び、取水または着水量の変動（以下負荷変動に含める）
を小さく抑える浄水場の運転監視制御装置に関する。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention utilizes the capacity of a water distribution reservoir or a water purification reservoir (hereinafter simply referred to as a water distribution reservoir) to reduce load fluctuations in lands suitable for settling and filtering. and fluctuations in the amount of water intake or landing (hereinafter included in load fluctuations)
This invention relates to an operation monitoring and control device for a water treatment plant that keeps water to a minimum.
（従来の技術）
第４図はこの種の従来の運転監視制御装置の概略構成を
示すブロック図であり、需要予測手段１０１が気象デー
タおよび配水実績を用いて浄水場の配水流量を予測する
と、運転計画作成手段１０２は需要予測手段１０１の配
水流量予測値に基づき、配水池の容量を利用して着水量
の変動を最小に抑えるように、各時刻の取水量、ろ過流
量の決定や、弁およびポンプの操作シーケンス等の運転
計画を作成する。また、監視制御手段１０５は運転計画
作成手段１０２の運転計画に従って各種の弁およびポン
プを制御すると共に、配水池３の水位を検出する水位計
１６の出力信号に基づき配水池水位を監視し、許容範囲
の上限、下限を超えるごとに、例えば、流量調節弁６を
補正制御していた。(Prior Art) FIG. 4 is a block diagram showing a schematic configuration of this type of conventional operation monitoring and control device. When the demand forecasting means 101 predicts the water distribution flow rate of a water treatment plant using weather data and water distribution results, The operation plan creation means 102 determines the water intake amount and filtration flow rate at each time, and determines the water intake amount and filtration flow rate at each time, based on the water distribution flow rate prediction value of the demand forecasting means 101, so as to minimize fluctuations in water landing amount by utilizing the capacity of the water distribution reservoir. and create an operation plan such as the pump operation sequence. In addition, the monitoring control means 105 controls various valves and pumps according to the operation plan of the operation plan creation means 102, and also monitors the water level of the water distribution reservoir based on the output signal of the water level meter 16 that detects the water level of the water distribution reservoir 3. For example, the flow control valve 6 is corrected and controlled each time the upper or lower limit of the range is exceeded.
（発明が解決しようとする問題点）
上述した従来の浄水場の運転監視制御装置においては、
需要予測手段１０１の配水流量予測の精度が高い場合、
および、配水池の容量が大きい場合には極めて有効に負
荷変動を抑えることができる。(Problems to be Solved by the Invention) In the conventional water treatment plant operation monitoring and control device described above,
When the accuracy of water distribution flow rate prediction by the demand prediction means 101 is high,
In addition, when the capacity of the water distribution reservoir is large, load fluctuations can be suppressed extremely effectively.
しかしながら、配水流量予測に十分な精度が望めなかっ
たり、あるいは、配水池水位の許容変動範囲に対応する
容量が少なかったりした場合には負荷変動が拡大する虞
れがあった。However, if sufficient accuracy cannot be expected in predicting the distribution flow rate, or if the capacity to accommodate the permissible fluctuation range of the water level in the distribution reservoir is small, there is a risk that load fluctuations will increase.
第５図はこのこ−とを説明するために時間と水位との関
係を示した線図であり、運転計画作成時における配水池
水位の許容変動範囲の上限をｈｌ。FIG. 5 is a diagram showing the relationship between time and water level to explain this, and the upper limit of the permissible variation range of water level in the water distribution reservoir at the time of creating the operation plan is hl.
下限をｈ２として配水池の水位が曲線Ｘに示すように許
容変動範囲内で緩やかに変化したとすれば、監視制御手
段１０５が補正制御することはない。If the water level of the water distribution reservoir changes gradually within the permissible fluctuation range as shown by curve X with the lower limit being h2, the supervisory control means 105 will not perform correction control.
しかしながら、配水流量予測の誤差により配水池水位が
曲線Ｙに示すように変動し、時刻ｔ にて上限ｈ１を超
えたとすると、この時点で監視制御手段１０５が補正制
御を行う。かかる補正制御を行うことは負荷変動が大き
くなることに他ならず、若し、外乱発生の発見が遅れた
場合には大幅な補正が必要となる。However, if the water level in the water distribution reservoir fluctuates as shown by curve Y due to an error in predicting the water distribution flow rate, and exceeds the upper limit h1 at time t, the monitoring control means 105 performs correction control at this time. Performing such correction control will only increase load fluctuations, and if the occurrence of disturbance is detected late, significant correction will be required.
かくして、従来の浄水場の運転監視制御装置では、負荷
変動を抑制するという初期の目的に反する制御を行なっ
てしまうという問題点があった。Thus, conventional water purification plant operation monitoring and control devices have the problem of performing control that is contrary to the initial purpose of suppressing load fluctuations.
本発明は上記の問題点を解決するためになされたもので
、配水流量予測の精度および配水池の容量に影響される
ことなく、負荷変動を著しく小さく抑えることのできる
浄水場の運転監視制御装置の提供を目的とする。The present invention has been made to solve the above problems, and is an operation monitoring and control device for a water purification plant that can significantly reduce load fluctuations without being affected by the accuracy of water distribution flow rate prediction or the capacity of a water distribution reservoir. The purpose is to provide.
（問題点を解決するための手段）
本発明は、第１図に示すように、浄水場の配水流量を予
測する需要予測手段１０１と、この需要予測手段１０１
の配水流量予測値に基づき、弁およびポンプ等の操作対
象の運転計画を作成する運転計画作成手段１０２と、需
要予測手段１０１の配水流量予測値と運転計画作成手段
の運転計画とに基づいて配水値の水位またはこの水位に
関連する流量のいずれか１つのプロセス値の時間的な推
移を求めるシミュレーション手段１０３と、このシミュ
レーション手段１０３がシミュレートするプロセス値を
検出するプロセス検出手段１０４と、運転計画作成手段
１０２の運転計画、シミュレーション手段１０３のシミ
ュレーション結果およびプロ検出手段１０４の検出値に
基いて操作対象１０６を運転、制御する監視制御手段１
０５とを備えたものである。(Means for Solving the Problems) As shown in FIG.
An operation plan creation means 102 that creates an operation plan for operating targets such as valves and pumps based on the predicted water distribution flow rate of the demand forecasting means 101 and an operation plan of the operation plan generation means. a simulation means 103 for determining a temporal change in a process value of either a water level or a flow rate related to this water level; a process detection means 104 for detecting a process value simulated by this simulation means 103; and an operation plan. Monitoring control means 1 that operates and controls the operation target 106 based on the operation plan of the creation means 102, the simulation result of the simulation means 103, and the detected value of the professional detection means 104.
05.
（作 用）
この発明においては需要予測手段１０１が気象データお
よび配水実績を用いて浄水場の配水流量を予測すると、
この配水流量予測値に基いて運転計画作成手段１０２が
配水池の容量を利用して着水流量の変動を最小に抑える
ように操作対象１０６の運転計画を作成する一方、シミ
ュレーション手段１０３が配水流量予測値を配水流量と
仮定して運転計画作成手段１０２の運転計画に従って操
作対象を運転した場合の配水池水位またはこの水位に関
連する流量等のいずれか１つのプロセス値の推移を求め
る。また、プロセス検出手段１０４が実際のプロセス値
を検出する。そこで、監視制御手段１０５は運転計画作
成手段１０２の運転計画に従って操作対象１０６を運転
すると共に、シミュレーション手段１０３のシミュレー
ション結果とプロセス検出手段１０４の検出値との偏差
が所定値以下になるように操作対象１０６を補正制御す
る。(Function) In the present invention, when the demand forecasting means 101 predicts the water distribution flow rate of the water treatment plant using weather data and water distribution results,
Based on this predicted water flow rate, the operation plan creation means 102 uses the capacity of the distribution reservoir to create an operation plan for the operation target 106 so as to minimize fluctuations in the landing flow rate, while the simulation means 103 Assuming that the predicted value is the water distribution flow rate, the transition of any one process value such as the water level of the water distribution reservoir or the flow rate related to this water level is determined when the operation target is operated according to the operation plan of the operation plan generation means 102. Further, a process detection means 104 detects an actual process value. Therefore, the supervisory control means 105 operates the operation target 106 according to the operation plan of the operation plan generation means 102, and operates the object 106 so that the deviation between the simulation result of the simulation means 103 and the detected value of the process detection means 104 is equal to or less than a predetermined value. Correction control is performed on the target 106.
この結果、配水流量の予測値と実績値との間で誤差が発
生したり、浄水場の容量がかなり小さくて水位が大きく
変動し易い状況にあっても、運転計画と運転実績との差
異を早期に発見して補正することになるので、負荷変動
を著しく小さく抑えることができる。As a result, even if an error occurs between the predicted value and the actual value of water distribution flow, or if the water treatment plant's capacity is quite small and the water level tends to fluctuate greatly, the difference between the operation plan and the actual operation result can be confirmed. Since it is detected early and corrected, load fluctuations can be kept extremely small.
（実施例）
第２図はこの発明の一実施例の構成を示すブロック図で
ある。同図において、着水井１の後に沈でん・ろ適地２
および配水池３が順に配置されており、このうち、沈で
ん・ろ適地２の負荷変動および着水量の変動を小さく抑
えるために、着水井１の前に着水流量を調節する流量調
節弁４と、着水流量を測定する流量計５とが設けられる
ほか、気象データ１１および配水量！ｇ１１２を用いて
配水流量を予６ｊする需要予測装置１３と、この需要予
測装置１３の配水量予測値から流ｉ調節弁４の運転計画
を作成する運転計画作成装置１４と、需要予測装置１３
の配水量予測および運転計画作成装置１４の運転計画に
基いて配水池３の水位の時間的な推移を求めるシミュレ
ーション装置１５と、配水池３の水位を検出する水位：
ｆ１６の水位信号とシミュレーション装置１５のシミュ
レーション結果とを比較し、その差が±ＤＨ以下のとき
運転計画作成装置１４の運転計画に従った着水流量設定
値を出力し、その差が±ＤＨを超えるとき上記運転計画
に補正を加えた着水流量設定値を出力する監視装置１７
と、この監視装置１７の着水流量設定値と流量計５の流
量信号との偏差分が零になるように流量調節弁４を操作
するフィードバック制御装置１８とが設けられている。(Embodiment) FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention. In the same figure, after the landing well 1, there is a suitable area for settling and filtration 2.
and a water distribution reservoir 3 are arranged in this order, and among these, a flow control valve 4 for adjusting the landing flow rate is installed in front of the landing well 1 in order to suppress the load fluctuation of the settling/filtering suitable site 2 and the fluctuation of the landing water amount. In addition to being provided with a flow meter 5 that measures the flow rate of landing water, meteorological data 11 and water distribution amount! a demand forecasting device 13 that predicts the water distribution flow rate using g112, an operation plan creation device 14 that creates an operation plan for the flow i control valve 4 from the water distribution amount predicted value of the demand forecasting device 13, and a demand forecasting device 13.
A simulation device 15 that calculates temporal changes in the water level of the water distribution reservoir 3 based on the water distribution amount prediction and operation plan of the operation plan creation device 14, and a water level that detects the water level of the water distribution reservoir 3:
The water level signal of f16 and the simulation result of the simulation device 15 are compared, and when the difference is less than ±DH, the landing flow rate set value according to the operation plan of the operation plan creation device 14 is outputted, and the difference is ±DH. A monitoring device 17 that outputs a water landing flow rate set value with corrections made to the above operation plan when the flow rate exceeds the above.
and a feedback control device 18 that operates the flow rate control valve 4 so that the deviation between the water landing flow rate set value of the monitoring device 17 and the flow rate signal of the flow meter 5 becomes zero.
上記のように構成された本実施例の動作を以下に説明す
る。The operation of this embodiment configured as described above will be explained below.
先ず、需要予測装置１３が気象データ１１、配水実績１
２に基いて配水流量を予測すると、運転計画作成装置１
４は配水池３の容量を利用し、着水流量の最小化を行う
運転計画を作成する。シミュレーション装置１５は需要
予測装置１３の配水流量予測値に従って送水されたと仮
定し、以下に述べる方法によって配水池３の水位の時間
的な推移を求める。First, the demand forecasting device 13 uses weather data 11 and water distribution record 1.
When the water distribution flow rate is predicted based on 2, the operation planning device 1
4 creates an operation plan that utilizes the capacity of the water distribution reservoir 3 and minimizes the landing flow rate. The simulation device 15 assumes that water is sent according to the water distribution flow rate prediction value of the demand prediction device 13, and calculates the temporal change in the water level of the water distribution reservoir 3 by the method described below.
すなわち、時刻ｔにおける配水池３の水位をｈ １沈で
ん・ろ適地２の水位をｈ １着水井１ｐ
ｒの水位を
ｈ とする一方、着水井１の流入流量をｑ 、沈でん・
ろ適地２の流入流量をｑ １着水ｒ
井１および沈でんろ適地２間の損失水頭をｒｔ（ｑρ、
沈でんろ適地２のろ過流量をｑ （ｔ）、沈でんろ適
地２および配水池３間の損失水頭をｒ２ （ｑ、）
、送水量をｑ。とする。In other words, the water level of the distribution reservoir 3 at time t is h 1 The water level of the suitable sinking/filtering site 2 is h 1 The water level of the water well 1 p
Let the water level of r be h, the inflow flow rate of landing well 1 be q, and the sedimentation
Let the inflow flow rate of the well 2 be
The filtration flow rate of the suitable settling area 2 is q (t), and the water head loss between the suitable settling area 2 and the distribution reservoir 3 is r2 (q,).
, the amount of water supplied is q. shall be.
また、着水井面積をＡ １沈でん・ろ適地面積をＡ １
配水池面積をＡ とすると各時刻で下式がｐ
成立する。In addition, the landing well area is A1, and the area suitable for sedimentation and filtration is A1.
Letting the area of the water distribution reservoir be A, the following formula p holds true at each time.
ｈａ−ｈｒ−ｒｌ （ｑｒ）・・・・・・・・・・・・
・・・（４）ｈ 、 ｈ 、 −ｒ ２ （ｑ ｐ
）・・・・・・・・・・・・・・・（５）そこで、シミ
ュレーション手段１５はｈ 。ha-hr-rl (qr)・・・・・・・・・・・・
...(4) h , h , -r 2 (q p
)...................................................(5) Then, the simulation means 15 performs h.
ｈ 、ｈ 、ｑ 、ｑ 、ｑ を初期値、送
水量ｐａｒｐ
ｑ を需要予測値、着水流１ｋ ｑ ｔを運転計画値と
して、例えば、Ｎｅｗｔｏｎ−Ｒａｐｈｓｏｎの接線法
またはＲｕｎｇｅ−Ｋｕｔｔａの前進積分公式を用いて
配水池水位ｈ の時間経過に伴う推移を算出する。For example, the Newton-Raphson tangent method or the Runge-Kutta forward integral formula can be used with h , h , q , q , and q as the initial values, the water supply amount parp q as the demand forecast value, and the landing water flow 1 k q t as the operation plan value. The change in water level h in the water distribution reservoir over time is calculated using the following formula.
次に、監視装置１７は運転計画作成装置１４の運転計画
に従った着水流量設定値を算出してフィードバック制御
装置１８に出力する。さらに、監視装置１７は水位計１
６によって検出される配水池水位とシミュレーション装
置１５のシミュレーション水位とを比較し、その差が許
容誤差範囲上ＤＨを超えたとき、運転計画に補正を加え
た着水流量設定値を算出してフィードバック制御装置１
８に出力する。Next, the monitoring device 17 calculates a landing flow rate setting value according to the operation plan of the operation plan generation device 14 and outputs it to the feedback control device 18. Furthermore, the monitoring device 17 includes a water level gauge 1
Compare the water level of the distribution reservoir detected by 6 with the simulated water level of the simulation device 15, and when the difference exceeds DH within the allowable error range, calculate the landing flow rate set value with correction to the operation plan and feed it back. Control device 1
Output to 8.
そこで、フィードバック制御装置１８は流−計５による
流量検出値と、監視装置１７の流量設定値とが等しくな
るように流量調節弁４を制御する。Therefore, the feedback control device 18 controls the flow control valve 4 so that the flow rate detected by the flowmeter 5 and the flow rate set value of the monitoring device 17 are equal.
第３図はこの実施例の制御動作を説明するために時間ｔ
と配水池水位ｈ との関係を示す線図であり、配水池水
位の上限をｈ 、下限をｈ２とすす
るとき、シミュレーション装置１５のシミュレーション
水位が曲線Ｐに示すように緩やかに推移していたとする
。監視装置１７は曲線Ｐに示したシミュレーション水位
に対して、配水池３の実水位が許容誤差範囲±ＤＩ（に
あるか否か、すなわち、曲線Ｕ、 Ｌを超えたか否か
を監視し、例えば、外乱の影響で配水池水位が曲線Ｑに
示すように変化し、時刻ｔ、にて曲線Ｕを超えれば、こ
の時点で運転計画を補正すると共に、補正後の運転計画
に従って流量設定を行う。FIG. 3 shows the time t to explain the control operation of this embodiment.
This is a diagram showing the relationship between the distribution reservoir water level h and the upper limit of the distribution reservoir water level as h and the lower limit as h2, and it is assumed that the simulated water level of the simulation device 15 changes gradually as shown by the curve P. do. The monitoring device 17 monitors whether the actual water level of the water distribution reservoir 3 is within the permissible error range ±DI (with respect to the simulated water level shown by the curve P), that is, whether it exceeds the curves U and L. If the distribution reservoir water level changes as shown by curve Q due to the influence of disturbance and exceeds curve U at time t, the operation plan is corrected at this point, and the flow rate is set in accordance with the corrected operation plan.
かくして、従来装置では配水池水位が予め設定した上限
ｈ １下限ｈ２を超えたときに補正制御を行っているの
で、負荷変動が著しく大きくなることがあるが、本実施
例ではシミュレーション水位に対する実水位が誤差範囲
ＤＨを超えた段階で補正制御するので負荷変動を住かに
抑えることができる。In this way, in the conventional system, correction control is performed when the water level in the water distribution reservoir exceeds the preset upper limit h1 and lower limit h2, so load fluctuations may become significantly large, but in this embodiment, the actual water level relative to the simulated water level is Since correction control is carried out at the stage when DH exceeds the error range DH, load fluctuations can be suppressed.
なお、上記実施例ではシミュレーション装置１５が配水
池水位をシミュレートし、監視装置１７がそのシミュレ
ーション水位と、水位計１６による検出水位とを比較し
ているが、この代わりにシミュレーション装置１５が配
水池の水位に関連する流量をシミュレートするようにす
る一方、監視装置１７がそのシミュレーション結果と流
量検出値とを比較するように構成しても、上述したと略
同様な制御を行なわせることができる。In the above embodiment, the simulation device 15 simulates the water level in the distribution reservoir, and the monitoring device 17 compares the simulated water level with the water level detected by the water level gauge 16. Instead, the simulation device 15 simulates the water level in the distribution reservoir. Even if the monitoring device 17 is configured to compare the simulation result with the flow rate detection value while simulating the flow rate related to the water level of the flow rate, substantially the same control as described above can be performed. .
以上の説明によって明らかな如く、本発明によれば浄水
場運転計画が外乱により満足されなくなった場合でも、
このことを早期に発見し得、これによって、沈でん・ろ
過池の負荷変動等を著しく小さく抑えることができると
いう効果がある。As is clear from the above explanation, according to the present invention, even when the water treatment plant operation plan is no longer satisfied due to disturbance,
This can be detected at an early stage, which has the effect of significantly suppressing sedimentation, filtration tank load fluctuations, etc.
第１図は本発明の構成を示すブロック図、第２図は本発
明の一実施例の構成を浄水系統と併せて示したブロック
図、第３図は同実施例の動作を説明するために配水池水
位と時間との関係を示した線図、第４図は従来の浄水場
の運転監視制御装置の構成を示すブロック図、第５図は
同装置の動作を説明するために配水池水位と時間との関
係を示した線図である。
１・・・着水井、２・・・沈でん・ろ過池、３・・・配
水池、４・・・流量調節弁、５・・・流量計、１３・・
・譜要予測装置、１４・・・運転計画作成装置、１５・
・・シミュレーション装置、１６・・・水位計、１７・
・・監視装置、１８・・・フィードバック制御装置。
出願人代理人 佐 藤 −雄
第１図
第４図
第５図Figure 1 is a block diagram showing the configuration of the present invention, Figure 2 is a block diagram showing the configuration of an embodiment of the present invention together with a water purification system, and Figure 3 is for explaining the operation of the embodiment. A line diagram showing the relationship between the water level in the water distribution reservoir and time. Figure 4 is a block diagram showing the configuration of a conventional operation monitoring and control device for a water purification plant. Figure 5 shows the water level in the water distribution reservoir to explain the operation of the device. It is a diagram showing the relationship between and time. 1... Water landing well, 2... Sedimentation/filtration basin, 3... Distribution reservoir, 4... Flow rate control valve, 5... Flow meter, 13...
・Music requirement prediction device, 14... Operation plan creation device, 15.
...Simulation device, 16...Water level gauge, 17.
... Monitoring device, 18... Feedback control device. Applicant's agent Mr. Sato Figure 1 Figure 4 Figure 5
Claims (1)
予測する需要予測手段と、この需要予測手段の配水流量
予測値に基づき、配水池の容量を利用して着水流量の変
動を最小に抑えるように、弁およびポンプ等の操作対象
の運転計画を作成する運転計画作成手段と、前記需要予
測手段の配水流量予測値を配水流量と仮定して前記運転
計画作成手段の運転計画に従って前記操作対象を運転し
た場合の前記配水池の水位またはこの水位に関連する流
量のいずれか１つのプロセス値の時間的な推移を求める
シミュレーション手段と、このシミレーション手段がシ
ミュレートするプロセス値を検出するプロセス検出手段
と、前記運転計画作成手段の運転計画に従って前記操作
対象を運転すると共に、前記シミュレーション手段のシ
ミュレーション結果と前記プロセス検出手段の検出値と
の偏差が所定値以下になるように前記操作対象を補正制
御する監視制御手段とを備えたことを特徴とする浄水場
の運転監視制御装置。A demand forecasting means that predicts the water distribution flow rate of a water treatment plant using weather data and water distribution records, and based on the water distribution flow rate predicted value of this demand forecasting means, minimizing fluctuations in the water arrival flow rate by using the capacity of the water distribution reservoir. an operation plan creating means for creating an operation plan for operation targets such as valves and pumps; simulation means for determining the time course of a process value of either the water level of the water distribution reservoir or the flow rate related to this water level when the system is operated; and process detection for detecting the process value simulated by the simulation means. and operating the operation target according to the operation plan of the operation plan creation means, and correcting the operation target so that the deviation between the simulation result of the simulation means and the detected value of the process detection means is equal to or less than a predetermined value. 1. An operation monitoring and control device for a water purification plant, comprising a monitoring and control means for controlling the water purification plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24748686A JPS63101905A (en) | 1986-10-20 | 1986-10-20 | Operation monitor and control equipment for filter plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24748686A JPS63101905A (en) | 1986-10-20 | 1986-10-20 | Operation monitor and control equipment for filter plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63101905A true JPS63101905A (en) | 1988-05-06 |
Family
ID=17164180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24748686A Pending JPS63101905A (en) | 1986-10-20 | 1986-10-20 | Operation monitor and control equipment for filter plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63101905A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55143614A (en) * | 1979-04-25 | 1980-11-10 | Hitachi Ltd | Safety control system of service water conveyance system |
| JPS5614366A (en) * | 1979-07-13 | 1981-02-12 | Toshiba Corp | Forecasting unit |
| JPS5932014A (en) * | 1983-07-18 | 1984-02-21 | Hitachi Ltd | Pondage controller of reservoir group |
| JPS59188712A (en) * | 1984-03-26 | 1984-10-26 | Hitachi Ltd | Dam controlling device |
| JPS61182102A (en) * | 1985-02-07 | 1986-08-14 | Toshiba Corp | Controller for filtration plant |
-
1986
- 1986-10-20 JP JP24748686A patent/JPS63101905A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55143614A (en) * | 1979-04-25 | 1980-11-10 | Hitachi Ltd | Safety control system of service water conveyance system |
| JPS5614366A (en) * | 1979-07-13 | 1981-02-12 | Toshiba Corp | Forecasting unit |
| JPS5932014A (en) * | 1983-07-18 | 1984-02-21 | Hitachi Ltd | Pondage controller of reservoir group |
| JPS59188712A (en) * | 1984-03-26 | 1984-10-26 | Hitachi Ltd | Dam controlling device |
| JPS61182102A (en) * | 1985-02-07 | 1986-08-14 | Toshiba Corp | Controller for filtration plant |
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