JP2004250941A

JP2004250941A - Water supply supporting apparatus between water distribution blocks in water supply system

Info

Publication number: JP2004250941A
Application number: JP2003040879A
Authority: JP
Inventors: Eisaku Nanba; 波栄作難; Futoshi Kurokawa; 川太黒; Yoshinori Inomata; 俣吉範猪; Atsumasa Shimiya; 宮篤政志
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 2003-02-19
Filing date: 2003-02-19
Publication date: 2004-09-09

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly carry out water supply support by exactly giving clean water supply information on the clean water supply to an operator. <P>SOLUTION: A supply amount of water distribution is set on the basis of the result of estimation of the demand, the simulation of a process behavior is made on the basis of the set supply amount of water distribution, and when it is decided that there is no abnormality in reference to the result of the simulation, the set supply amount of water distribution is outputted as a supply amount of clean water, and a valve is controlled so as to accomplish the task. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、取水源からの取水を浄水にする浄水場と、得られた浄水を固有の配水ブロックへ配水する配水場とを有する単位給水系統を複数組備え、各単位給水系統間で水の融通を行い得るように各単位給水系統間が、バルブを有する連系配管を介して接続されている給水設備における配水ブロック間水融通支援装置に関する。
【０００２】
【従来の技術】
河川や、井戸、ダム等の取水源から取水し、その取水から浄水を生産し、その浄水を、配水場を介して配水ブロックに属する各需要家へ配水する給水系統において、複数の配水ブロック間で浄水の融通をし合うためにオペレータが介在することは良く行われている。本発明は、オペレータ介在型の水融通装置においてオペレータへ支援情報を提供する水融通支援装置に関する。
【０００３】
比較的広域の配水エリアの需要家に対して、浄水を安全・確実に供給するために、一定の配水エリアを幾つかの配水ブロックに分割して浄水の供給を行っている。しかし、浄水を生産する上で、ダムや河川から取水できる量に制限がかかった場合等、需要量に見合った浄水を生産することができない場合が発生する。このような時、他の系統で生産した浄水を融通してもらうことによって、需要家に対して浄水を安定して供給することが可能となる。また、浄水融通に伴い、融通した機場の浄水の生産計画を立てなおす必要が出てくるため、その機場の浄水生産の再計画も併せて行っている。
【０００４】
図５は、３つの配水ブロック３０Ａ，３０Ｂ，３０Ｃに分割された配水エリアに、配水ブロック毎に浄水を生産し供給する主系統の構成例を示すものである。以下、図５を参照して主系統構成について説明する。
【０００５】
Ａ系統の配水ブロック３０Ａには、浄水場１０Ａで生産された浄水が配水場２０Ａを介して供給される。配水ブロック３０Ｂ，３０Ｃに対しても、同様構成の浄水場１０Ｂ，１０Ｃから配水場２０Ｂ，２０Ｃを介して浄水供給が行われる。ここでは各浄水場の取水源として井戸９Ａ、ダム９Ｂ、及び河川９Ｃを例示している。浄水場１０Ａは井戸９Ａから取水し、浄水場１０Ｂはダム９Ｂから取水し、浄水場１０Ｃは河川９Ｃから取水しているものとする。
【０００６】
浄水場１０Ａ，１０Ｂ，１０Ｃは同一内部構成を持っているものとし、それぞれ取水源側から順に、取水流量測定用流量計１１、着水井１２、ろ過池１３、ろ過流量測定用流量計１４、浄水池１５、及び送水量測定用流量計１６を備えている。配水場２０Ａ，２０Ｂ，２０Ｃはそれぞれ、配水池２１及び配水量測定用流量計２２を備えている。
【０００７】
浄水場１０Ａ，１０Ｂ，１０Ｃの相互間は、取水した原水を融通するための設備として、着水井１２の流出側で、融通用バルブ４１及び原水融通量測定用流量計４２を介して接続されている。同様に、配水場２０Ａ，２０Ｂ，２０Ｃの相互間は、浄水場１０Ａ，１０Ｂ，１０Ｃから送られてくる浄水を融通するための設備として、浄水場の出口側すなわち配水場の入口側で、融通用バルブ４３及び送水融通量測定用流量計４４を介して互いに接続されている。さらに、系統毎に配水場と配水ブロック間に２つのバルブ４５，４６を直列に接続し、Ａ，Ｂ，Ｃ各系統間をそれぞれ両バルブ４５，４６の直列接続点で、配水融通量測定用流量計４７及びバルブ４８を介して接続している。
【０００８】
このような主系統構成の給水系統において、例えばｂ系統の浄水場１０Ｂの取水源であるダム９Ｂに取水制限がかかり、浄水場１０Ｂにおいて必要な浄水の生産をすることができなくなった場合を考えてみる。配水ブロック３０Ｂには原則的には浄水場１０Ｂで生産された浄水が配水場２０Ｂを介して供給される。しかし、浄水場１０Ｂの生産水量が不足した場合は、配水ブロック３０Ｂへの配水量を確保するため、浄水場１０Ａ又は１０Ｃ又はその両方で生産した浄水をＢ系統に融通してもらうことが必要になる。
【０００９】
このような時オペレータは、図６に示すような配水ブロック間水融通支援装置５０（例えば、特許文献１参照）を用いて配水ブロック間水融通処理を行う。配水ブロック間水融通支援装置５０は、浄水融通量設定手段５１、バルブ制御手段５２、送水計画手段５３、及び取水・ろ過計画手段５４を備えている。配水ブロック間水融通に際して、オペレータは浄水融通量設定手段５１を用いて、配水場２０Ａ及び２０Ｃからの融通量を経験的に決定し設定する。設定された融通量はバルブ制御手段５２に送られ、各系統のバルブ４５，４６及び各系統間のバルブ４８を操作して融通量を調整する。この時、融通する側の配水場２０Ａ及び２０Ｃでは融通量分だけ配水量が増加するため、浄水場１０Ａ又は１０Ｃでの生産水量の再計画を取水・ろ過計画手段５４で行う。同時に、浄水場１０Ａから配水場２０Ａへの送水量、及び浄水場１０Ｃから配水場２０Ｃへの送水量の計画も送水計画手段５３で行う。
【００１０】
【特許文献１】
特開平１１−６１８９３号公報（図１とその説明）
【特許文献２】
特開２００１−２１６２８７号公報（図１とその説明）
【００１１】
【発明が解決しようとする課題】
上述したように、どの系統からどの程度の水量を融通するかの決定は、従来、オペレータが経験に基づいて行っているため、経験の浅いオペレータでは適切な融通量を決定することが困難である。また、浄水融通を行うと、浄水を融通するための設備であるバルブ４５，４６，４８の開閉制御を伴うが、バルブ制御に伴う管路内の圧力変動や、流量変化、流れ方向の変化等のプロセス値を的確に捉えることもかなり困難である。そもそもオペレータの経験等に頼る従来の手動操作型の方式では突発的な事故発生の事態を想定していないので、突発事故発生時にオペレータの負担が大きいばかりでなく、的確な判断や操作を期待するのは無理である。
【００１２】
したがって本発明の目的は、オペレータに対して、浄水融通に伴う浄水融通情報を的確に提供し、水融通支援を円滑に実施得るようにするための配水ブロック間水融通支援装置を提供することである。
【００１３】
【課題を解決するための手段】
上記課題を解決するために、請求項１に係る発明の配水ブロック間水融通支援装置は、過去の水需要実績の統計値に基づいて各配水ブロックの浄水需要量を予測する需要予測手段と、需要予測手段によって予測された浄水需要量に基づいて配水ブロック間での配水融通量を演算し設定する手段と、給水系統のプロセス情報を格納するプロセス情報データベースと、設定された配水融通量に基づき、プロセス情報データベースに格納されたプロセス情報を参照してプロセス挙動のシミュレーションを行うプロセス値シミュレーション手段と、プロセス値シミュレーション手段のシミュレーション結果を参照して異常なしと判断されたとき設定された配水融通量を浄水融通量として出力する浄水融通量出力手段と、浄水融通量出力手段から出力された浄水融通量を達成するようにバルブを制御するバルブ制御手段と、を備えたことを特徴とする。
【００１４】
請求項２に係る発明の配水ブロック間水融通支援装置は、過去の水需要実績の統計値に基づいて各配水ブロックの浄水需要量を予測する需要予測手段と、各配水ブロックの過去のプロセス実績値を格納する実績値データベースと、需要予測手段によって予測された浄水需要量に類似する実績値を有する過去の期日を、実績値データベースを参照して検索する類似日検索手段と、検索によって得られた過去の期日の実績値に基づいて配水融通量を設定する配水融通量設定手段と、この配水融通量設定手段によって設定された配水融通量に従って浄水融通量を出力する浄水融通量出力手段と、この浄水融通量出力手段から出力された浄水融通量を達成するようにバルブを制御するバルブ制御手段と、を備えたことを特徴とする。
【００１５】
請求項３に係る発明の配水ブロック間水融通支援装置は、過去の水需要実績の統計値に基づいて各配水ブロックの浄水需要量を予測する需要予測手段と、各配水ブロックの過去のプロセス実績値を格納する実績値データベースと、需要予測手段によって予測された浄水需要量に類似する実績値を有する過去の期日を、実績値データベースを参照して検索する類似日検索手段と、検索によって得られた過去の期日の実績値に基づいて配水融通量を設定する配水融通量設定手段と、給水系統のプロセス情報を格納するプロセス情報データベースと、設定された配水融通量に基づき、プロセス情報データベースに格納されたプロセス情報を参照してプロセス挙動のシミュレーションを行うプロセス値シミュレーション手段と、プロセス値シミュレーション手段のシミュレーション結果を参照して異常なしと判断されたとき設定された配水融通量を浄水融通量として出力する浄水融通量出力手段と、浄水融通量出力手段から出力された浄水融通量を達成するようにバルブを制御するバルブ制御手段と、を備えたことを特徴とする。
【００１６】
請求項４に係る発明の配水ブロック間水融通支援装置は、過去の水需要実績の統計値に基づいて各配水ブロックの浄水需要量を予測する需要予測手段と、各配水ブロックの過去のプロセス実績値を格納する実績値データベースと、需要予測手段によって予測された浄水需要量に基づいて、実績値データベースを参照し、配水ブロック間の水融通量を考慮した各給水系統の浄水場の取水から配水ブロックへの配水までの運用計画を立てる運用計画手段と、この運用計画手段によって計画された配水融通量を設定する配水融通量設定手段と、給水系統のプロセス情報を格納するプロセス情報データベースと、配水融通量設定手段によって設定された配水融通量に基づきプロセス情報を参照してプロセス挙動のシミュレーションを行うプロセス値シミュレーション手段と、このプロセス値シミュレーション手段のシミュレーション結果を参照して異常なしと判断されたとき配水融通量設定手段によって設定された配水融通量を出力する浄水融通量として出力する浄水融通量出力手段と、この浄水融通量出力手段から出力された浄水融通量を達成するようにバルブを制御するバルブ制御手段と、を備えたことを特徴とする。
【００１７】
【発明の実施の形態】
＜第１の実施形態＞
図１を用いて本発明の第１の実施形態を説明する。
本発明の適用対象である主系統構成は、図５に示した通りであるとして説明を進める。
図１の配水ブロック間水融通支援装置６０は、需要予測手段６１、配水融通量演算手段６２、配水融通量設定手段６３、プロセス値シミュレーション手段６４、プロセス情報ＤＢ（データベース）６５、異常確認ブロック６６、浄水融通量出力手段６７、及びバルブ制御手段６８から構成されている。
【００１８】
原則的には、浄水場１０Ａで生産された浄水は配水場２０Ａを介して配水ブロック３０Ａへ供給される。同様に浄水場１０Ｂ，１０Ｃで生産された浄水は配水場２０Ｂ，２０Ｃを介して配水ブロック３０Ｂ，３０Ｃへ供給される。また、各系統間にバルブを含む水融通経路が設けられていることは、すでに述べた通りである。
【００１９】
このような主系統において、例えばＢ系統の浄水場１０Ｂの取水源であるダム９Ｂに取水制限がかかり、配水ブロック３０Ｂで必要とする浄水量を浄水場１０Ｂで生産することができなくなった場合を考える。
【００２０】
浄水場１０Ｂで生産された浄水は、通常、配水ブロック２０Ｂへ供給されている。しかし、浄水場１０Ｂでの生産水量が不足すると、浄水場１０Ａ，１０Ｃで生産された浄水をＢ系統に融通することが必要となる。需要予測手段６１はプロセス情報ＤＢ６５を参照し、そこに蓄積された過去の水需要実績値に基づいて水需要予測を行い、予測された需要量に基づいて配水融通量演算手段６２により配水融通量を演算する。需要予測手段６１は、例えば特許文献２に記載された原理・構成のものを応用して予測することができる。オペレータは配水融通量演算手段６２で演算された配水融通量に基づき配水融通量設定手段６３を用いて配水場２０Ａ及び配水場２０Ｃからの融通量を決定し、設定する。その設定を受けて、プロセス値シミュレーション手段６４では、配水融通量設定手段６３で設定された融通量で運用した場合の、プロセスの挙動（管路内の圧力変動や流れ方向の変化等）をシミュレーションする。ここでは、プロセス情報ＤＢ６５に格納されているプロセス情報に基づいて水理モデルを生成し、生成したモデルでのシミュレーションを行う。水理モデルには一般に知られている以下のモデルを用いることができる。ここで、プロセス情報ＤＢ６５に格納されているプロセス情報には、例えば、各管路の種類、長さ、内径、接続関係、流量、圧力、水位、各種センサの設置位置、センサ出力、さらには各ポンプやバルブを含む各機器の特性、取水源の取水制限情報等が含まれる。
【００２１】
単一の管路や、バルブ、ポンプ等に関しては、流量と損失水頭の間で次式の関係が満足されねばならない。すなわち、Ｅ１を管路やバルブ、ポンプ等の一次圧、Ｅ２を管路やバルブ、ポンプ等の二次圧、ｈｆを管路やバルブ、ポンプ等での損失水頭（ポンプの場合は負となる）として、
Ｅ１−Ｅ２＝ｈｆ・・・（１）
である。
【００２２】
管路の結合点である節点では、流量の連続式あるいは節点方程式と呼ばれる次の等式が満足されねばならない。すなわち、
ｑｉｎ＝ｑｏｕｔ・・・（２）
ここで、ｑｉｎはある節点への流入量総和、ｑｏｕｔはある節点からの流出量総和である。
【００２３】
オペレータはプロセス値シミュレーション手段６４で演算されたプロセス挙動を確認し（異常確認ブロック６６）、異常が無ければ、配水融通量設定手段６３で設定された配水融通量を浄水融通量として浄水融通量出力手段６７に出力する。もし、プロセス挙動に異常があると判断されれば、配水融通量設定手段６３を用いて、再度、新たな配水融通量を設定し、プロセス値シミュレーション手段６４で改めてシミュレーションを行う。浄水融通量出力手段６７では、プロセス情報ＤＢを参照しつつ、入力された浄水融通量を達成するように、バルブ制御手段６８にバルブ操作指令を出す。バルブ制御手段６８は、入力された操作指令に基づいて主系統の関係するバルブを制御して浄水融通量を制御する。
【００２４】
この場合、送水計画手段５３や取水・ろ過計画手段５４（図６）を用いて、浄配水場の運用計画を立てることも可能である。
【００２５】
この実施形態によれば、配水融通を行ったときのプロセス挙動を、シミュレーションにより把握することにより、設定した融通量で問題ないかどうかを確認した上で融通量を決定するので、経験の浅いオペレータでも、シミュレーション値を確認することにより、水融通を的確に行うことができる。
【００２６】
＜第２の実施形態＞
図２を用いて第２の実施形態を説明する。
【００２７】
図２の配水ブロック間水融通支援装置７０は、需要予測手段７１、類似日検索手段７２、実績値ＤＢ（データベース）７３、配水融通量設定手段７４、浄水融通量出力手段７５、及びバルブ制御手段７６から構成されている。
【００２８】
需要予測手段７１では、各配水ブロック３０Ａ，３０Ｂ，３０Ｃの需要量を予測する。この予測には公知の方法（例えば、特許文献２参照）を用いることができる。類似日検索手段７２では、需要予測手段７１によって予測された各配水ブロックの需要量と類似する過去の実績需要量を検索し、両者が一致又は類似した需要量と同一日時の各浄配水場間の融通量データを得る。なお、検索キーは各配水ブロックの需要量予測値をそのまま用いても良いし、統計的に処理した値を用いても良いし、さらに周波数解析などの数値処理を行った値を用いても良い。また、類似度の判定には自乗誤差和を用いる。すなわち、検索キーと実績値データベース７３の各レコード（１日ごとの需要量実績値）の自乗誤差和を用いる。各レコードで算出した自乗誤差和が最も小さいレコードが類似レコードとなる。得られた各浄配水場間の融通量に基づいて配水融通量設定手段７４により配水融通量を設定し、それを浄水融通量として浄水融通量出力手段７５に出力する。
【００２９】
浄水融通量出力手段７５では、入力された融通量が達成できるように、バルブ制御手段７６にバルブ操作指令を出す。なお、入力された融通量をオペレータがマニュアル修正することも可能である。バルブ制御手段７６は、入力された操作指令に基づいて各バルブの制御を行う。
【００３０】
この場合も、従来技術を応用し、送水計画手段５３や取水・ろ過計画手段５４（図６）を用いて、浄配水場の運用計画を立てることが可能である。
【００３１】
この実施形態によれば、現在の状況と似ている過去の実績値を基に水融通量を決定し、その時のプロセス挙動を確認することができ、そのため、より適切な浄水融通量を設定することができる。
【００３２】
＜第３の実施形態＞
図３を用いて第３の実施形態を説明する。
図３に示す配水ブロック間水融通支援装置８０は、需要予測手段８１、類似日検索手段８２、実績値ＤＢ（データベース）８３、配水融通量設定手段８４、プロセス値シミュレーション手段８５、プロセス情報ＤＢ（データベース）８６、異常確認ブロック８７、浄水融通量出力手段８８、及びバルブ制御手段８９から構成されている。
【００３３】
需要予測手段８１では、各配水ブロック３０Ａ，３０Ｂ，３０Ｃの需要量を予測する。この時、予測方法としては第１または第２の実施形態における需要予測手段６１，７１による需要予測方法と同じ方法を用いれば良い。類似日検索手段８２では、需要予測手段８１によって予測された各配水ブロックの需要量に類似する過去の実績需要量を実績値ＤＢ８３の中から検索し、一致又は類似する需要量と同一日時の各浄配水場間の融通量を得る。この類似日検索手段８２においても第２の実施形態における類似日検索手段７２と同様の方法によって検索すれば良い。類似度の判定には統計的に自乗誤差和を用いる。すなわち、検索キーと実績値データベース８３の各レコード（１日ごとの需要量実績値）の自乗誤差和である。各レコードで算出した自乗誤差和が最も小さいレコードが類似レコードとなる。得られた各浄配水場間の融通量を配水融通量設定手段８４に出力する。配水融通量設定手段８４では、類似日検索手段８２で取得した過去の実績値を配水融通量として設定する。なお、設定した融通量の変更は可能である。プロセス値シミュレーション手段８５では、配水融通量設定手段８４で設定された融通量で運用した場合の、プロセスの挙動（管路内の圧力変動や流れ方向の変化等）をシミュレーションする。ここでは、水理モデルをプロセス情報データベース８６に基づいて生成し、生成したモデルでのシミュレーションを行う。
【００３４】
オペレータはプロセス値シミュレーション手段８５でシミュレーションされたプロセス挙動を異常確認ブロック８７で確認し、異常が無ければ、配水融通量設定手段８４で設定された融通量を浄水融通量出力手段８８に浄水融通量として出力する。もし、プロセス挙動に異常があれば、配水融通量設定手段８４を用いて、融通量を再設定し、改めてシミュレーションを行う。
【００３５】
浄水融通量出力手段８８では、プロセス値シミュレーション手段８５から入力された融通量が達成されるようにバルブ制御手段８９にバルブ操作指令を出す。バルブ制御手段８９は、入力された操作指令に基づいて主系統のバルブを制御する。
【００３６】
この場合もまた、送水計画手段５３や取水・ろ過計画手段５４を用いて、浄配水場の運用計画を立てることができる。
【００３７】
この実施形態によれば、現在の状況と似ている過去の実績値を基に水融通量を決定し、その時のプロセス挙動を確認することができ、そのため、より適切な浄水融通量を設定することができる。
【００３８】
＜第４の実施形態＞
図４を用いて第４の実施形態を説明する。
【００３９】
図４に示す配水ブロック間水融通支援装置９０は、需要予測手段９１、運用計画手段９２、実績値ＤＢ９３、配水融通量設定手段９４、プロセス値シミュレーション手段９５、プロセス情報ＤＢ９６、異常確認ブロック９７、変更確認ブロック９８、浄水融通量出力手段９９、及びバルブ制御手段１００から構成されている。
【００４０】
需要予測手段９１は、需要予測手段６１，７１，８１と同様にして各配水ブロックの需要量を予測する。運用計画手段９２は、需要予測手段９１によって予測された各配水ブロック３０Ａ，３０Ｂ，３０Ｃの需要量に基づいて、各配水ブロック間の配水融通量を考慮した、浄水場１０Ａ．１０Ｂ，１０Ｃからの送水量計画を作成し、さらに、作成された送水量計画に基づいて浄水場での浄水生産計画及び取水計画の作成を行う。なお、浄水生産計画及び取水計画を作成する時に浄水場間の浄水融通を考慮することができる。これらの計画を作成するためには、公知の方法（例えば、特許文献１参照）を用いることができる。
【００４１】
配水融通量設定手段９４は、運用計画手段９２によって計画された配水融通量を設定する。なお、ここで設定された融通量にはオペレータによってマニュアル変更を加えることが可能である。プロセス値シミュレーション手段９５は配水融通量設定手段９４によって設定された融通量で運用した場合の、プロセスの挙動（管路内の圧力変動や流れ方向の変化等）をシミュレーションする。ここでは、水理モデルをプロセス情報ＤＢ９６に蓄積されたプロセス情報に基づいて生成し、生成したモデルでのシミュレーションを行う。
【００４２】
オペレータはプロセス値シミュレーション手段９５で演算されたプロセス挙動の異常有無をブロック９７で確認し、異常が無ければ、さらにブロック９８で変更の有無を確認し、変更があった場合、配水融通量設定手段９４で設定された融通量を浄水融通量出力手段９９に出力する。変更が無ければバルブ制御手段１００を介して入力された操作指令に基づく主系統のバルブ制御を行う。また、ブロック９７でプロセス挙動に異常が確認された場合は、配水融通量設定手段９４を用いて、再度、新たな融通量を設定し、再度シミュレーションを行う。浄水融通量出力手段９９は、入力された浄水融通量が達成できるように、バルブ制御手段１００にバルブ操作指令を出す。
【００４３】
この実施形態においても、各実施の形態と同様に、送水計画手段５３や取水・ろ過計画手段５４を用いて浄配水場の運用計画を立てることが可能である。
【００４４】
この実施の形態によれば、現在の状況と似ている過去の実績値を基に水融通量を決定し、その時のプロセス挙動を確認することができ、そのため、より適切な水融通量を設定することができる。
【００４５】
【発明の効果】
以上述べてきたように、本発明によれば、オペレータに対し水融通量を決定するための支援情報を提供し、水融通時のプロセス挙動を把握し、水融通に伴う各浄配水場の適切な運用計画を作成することができる。
【図面の簡単な説明】
【図１】本発明による配水ブロック間水融通支援装置の第１の実施形態を示すブロック図。
【図２】本発明による配水ブロック間水融通支援装置の第２の実施形態を示すブロック図。
【図３】本発明による配水ブロック間水融通支援装置の第３の実施形態を示すブロック図。
【図４】本発明による配水ブロック間水融通支援装置の第４の実施形態を示すブロック図。
【図５】本発明を適用する給水系統の構成例を示す系統図。
【図６】従来の配水ブロック間水融通支援装置を示すブロック図。
【符号の説明】
９Ａ井戸
９Ｂダム
９Ｃ河川
１０Ａ浄水場
１０Ｂ浄水場
１０Ｃ浄水場
１１流量計
１２着水井
１３ろ過池
１４流量計
１５浄水池
１６流量計
２０Ａ配水場
２０Ｂ配水場
２０Ｃ配水場
２１配水池
２２流量計
３０Ａ配水ブロック
３０Ｂ配水ブロック
３０Ｃ配水ブロック
４１、４３，４５，４６，４８水融通用バルブ
４２，４４，４７流量計
５０配水ブロック間水融通支援装置
５１浄水融通量設定手段
５２バルブ制御手段
５３送水計画手段
５４取水・ろ過計画手段
６０配水ブロック間水融通支援装置
６１需要予測手段
６２配水融通量演算手段
６３配水融通量設定手段
６４プロセス値シミュレーション手段
６５プロセス情報ＤＢ（データベース）
６６異常確認ブロック
６７浄水融通量出力手段
６８バルブ制御手段
７０配水ブロック間水融通支援装置
７１需要予測手段
７２類似日検索手段
７３実績値ＤＢ（データベース）
７４配水融通量設定手段
７５浄水融通量出力手段
７６バルブ制御手段
８０配水ブロック間水融通支援装置
８１需要予測手段
８２類似日検索手段
８３実績値ＤＢ（データベース）
８４配水融通量設定手段
８５プロセス値シミュレーション手段
８６プロセス情報ＤＢ（データベース）
８７異常確認ブロック
８８浄水融通量出力手段
８９バルブ制御手段
９０配水ブロック間水融通支援装置
９１需要予測手段
９２運用計画手段
９３実績値ＤＢ（データベース）
９４配水融通量設定手段
９５プロセス値シミュレーション手段
９６プロセス情報ＤＢ（データベース）
９７異常確認ブロック
９８変更確認ブロック
９９浄水融通量出力手段
１００バルブ制御手段[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention comprises a plurality of unit water supply systems each having a water purification plant for purifying water intake from a water intake source and a water distribution plant for distributing the obtained purified water to a unique water distribution block. The present invention relates to a water exchange support device between water distribution blocks in a water supply facility in which each unit water supply system is connected via an interconnecting pipe having a valve so as to be able to perform interchange.
[0002]
[Prior art]
In a water supply system that draws water from water intake sources such as rivers, wells, and dams, produces purified water from the water intake, and distributes the purified water to each customer belonging to the distribution block via a water distribution station, a plurality of distribution blocks It is common for an operator to intervene to exchange purified water. The present invention relates to a water accommodation support device that provides support information to an operator in an operator-assisted water accommodation device.
[0003]
In order to supply clean water safely and reliably to customers in relatively wide water distribution areas, a certain water distribution area is divided into several water distribution blocks to supply purified water. However, when producing purified water, there may be cases where it is not possible to produce purified water that meets the demand, such as when the amount of water that can be taken from dams or rivers is limited. In such a case, it is possible to supply the purified water stably to the customer by having the purified water produced by another system interchange. In addition, with the water purification interchange, it is necessary to rebuild the production plan of the purified water at the plant where the water treatment was provided.
[0004]
FIG. 5 shows a configuration example of a main system that produces and supplies purified water for each water distribution block to a water distribution area divided into three water distribution blocks 30A, 30B, and 30C. Hereinafter, the main system configuration will be described with reference to FIG.
[0005]
Purified water produced at the water purification plant 10A is supplied to the water distribution block 30A of the A system via the water distribution plant 20A. Also for the water distribution blocks 30B and 30C, purified water is supplied from the similarly constructed water purification plants 10B and 10C via the water distribution plants 20B and 20C. Here, a well 9A, a dam 9B, and a river 9C are illustrated as water intake sources of each water purification plant. The water treatment plant 10A takes water from the well 9A, the water treatment plant 10B takes water from the dam 9B, and the water treatment plant 10C takes water from the river 9C.
[0006]
The water treatment plants 10A, 10B, and 10C have the same internal configuration, and the flow meter 11 for measuring the intake flow, the landing well 12, the filtration pond 13, the flow meter 14 for measuring the filtration flow, and the flow meter 14 for purifying water, respectively, in order from the intake source side. A pond 15 and a flow meter 16 for measuring the amount of water supply are provided. Each of the water distribution stations 20A, 20B, and 20C includes a water reservoir 21 and a flow meter 22 for measuring the amount of water distribution.
[0007]
The water purification plants 10A, 10B, and 10C are connected to each other via an exchange valve 41 and a flowmeter 42 for measuring the amount of raw water exchange on the outflow side of the landing well 12 as equipment for accommodating the raw water that has been withdrawn. I have. Similarly, between the water distribution plants 20A, 20B, and 20C, as facilities for accommodating the purified water sent from the water purification plants 10A, 10B, and 10C, interchange is provided at the outlet side of the water purification plant, that is, at the entrance side of the water distribution plant. Are connected to each other via a flow valve 43 and a flow meter 44 for measuring the amount of water supply. Furthermore, two valves 45 and 46 are connected in series between the water distribution station and the water distribution block for each system, and each of the systems A, B and C is connected at the serial connection point of both valves 45 and 46 for measuring the water distribution capacity. It is connected via a flow meter 47 and a valve 48.
[0008]
In a water supply system having such a main system configuration, for example, a case is considered in which a water intake restriction is imposed on a dam 9B which is an intake source of a water purification plant 10B of a system b, and it becomes impossible to produce required purified water in the water purification plant 10B. Try. In principle, purified water produced at the water purification plant 10B is supplied to the water distribution block 30B via the water distribution plant 20B. However, when the amount of water produced by the water purification plant 10B is insufficient, it is necessary to have the purified water produced at the water purification plant 10A or 10C or both be exchanged with the B system in order to secure the amount of water distribution to the water distribution block 30B. Become.
[0009]
In such a case, the operator performs inter-distribution-block water interchange processing using the inter-distribution block water interchange support device 50 (see, for example, Patent Document 1) as shown in FIG. The inter-water distribution block water exchange support device 50 includes a purified water exchange amount setting unit 51, a valve control unit 52, a water supply planning unit 53, and a water intake / filtration planning unit 54. At the time of water exchange between the water distribution blocks, the operator uses the purified water exchange amount setting means 51 to empirically determine and set the exchange amount from the water distribution stations 20A and 20C. The set amount of accommodation is sent to the valve control means 52, and the amount of accommodation is adjusted by operating the valves 45 and 46 of each system and the valve 48 between each system. At this time, since the amount of water distribution increases in the distribution stations 20A and 20C on the interchange side by the amount of the accommodation, the water / filtration planning means 54 replans the production water amount in the water purification plant 10A or 10C. At the same time, the water supply planning means 53 also plans the amount of water supply from the water treatment plant 10A to the water distribution plant 20A and the amount of water supply from the water treatment plant 10C to the water distribution plant 20C.
[0010]
[Patent Document 1]
JP-A-11-61893 (FIG. 1 and its description)
[Patent Document 2]
JP 2001-216287 A (FIG. 1 and its description)
[0011]
[Problems to be solved by the invention]
As described above, since the determination of the amount of water to be provided from which system is conventionally performed based on experience by an operator, it is difficult for an inexperienced operator to determine an appropriate amount of available water. . In addition, the exchange of purified water involves opening and closing control of valves 45, 46 and 48, which are facilities for accommodating purified water. However, pressure fluctuations in pipes due to valve control, changes in flow rate, changes in flow direction, etc. It is also very difficult to accurately grasp the process values of the above. In the first place, the conventional manual operation method that relies on the experience of the operator does not assume a sudden accident, so not only is the burden on the operator large at the time of the sudden accident, but also accurate judgment and operation are expected. It is impossible.
[0012]
Therefore, an object of the present invention is to provide a water exchange support device between water distribution blocks for accurately providing purified water exchange information associated with water exchange to an operator and enabling smooth implementation of water exchange support. is there.
[0013]
[Means for Solving the Problems]
In order to solve the above problems, a water exchange support device between water distribution blocks according to the invention according to claim 1, a demand prediction unit that predicts a purified water demand of each water distribution block based on a statistical value of past water demand results, Means for calculating and setting the water distribution amount between the distribution blocks based on the purified water demand amount predicted by the demand prediction means, a process information database storing process information of the water supply system, and A process value simulation means for simulating process behavior by referring to process information stored in a process information database, and a water distribution amount set when it is determined that there is no abnormality by referring to a simulation result of the process value simulation means. Output means for outputting the amount of purified water as the amount of purified water, and output from the And valve control means for controlling the valve to achieve the water purification interchange amount, characterized by comprising a.
[0014]
A water exchange support device between distribution blocks according to the invention according to claim 2, a demand prediction means for predicting a purified water demand of each distribution block based on a statistical value of past water demand results, and a past process result of each distribution block. An actual value database for storing values, a similar date search means for searching for a past date having an actual value similar to the purified water demand predicted by the demand prediction means by referring to the actual value database, Distribution capacity setting means for setting the water distribution capacity based on the actual value of the past date, and purified water capacity output means for outputting the purified water capacity according to the water distribution capacity set by the water capacity setting means, Valve control means for controlling a valve so as to achieve the purified water exchange amount output from the purified water exchange amount output means.
[0015]
The water exchange support device between distribution blocks according to the invention according to claim 3 is a demand prediction means for predicting a purified water demand of each distribution block based on a statistical value of past water demand results, and a past process result of each distribution block. An actual value database for storing values, a similar date search means for searching for a past date having an actual value similar to the purified water demand predicted by the demand prediction means by referring to the actual value database, Distribution capacity setting means for setting the water distribution capacity based on the actual value of the past due date, a process information database for storing the process information of the water supply system, and a process information database based on the set water distribution capacity. Process value simulation means for simulating process behavior with reference to the obtained process information, and process value simulation Means for outputting the set amount of water distribution as the amount of purified water when it is determined that there is no abnormality with reference to the simulation result of the means for purifying water, and the amount of purified water that is output from the amount of purified water interchange output means. Valve control means for controlling the valve so as to achieve it.
[0016]
The water exchange support device between distribution blocks of the invention according to claim 4 is a demand prediction means for predicting the purified water demand of each distribution block based on a statistical value of past water demand results, and a past process result of each distribution block. Based on the actual value database that stores the values and the purified water demand predicted by the demand forecasting means, reference is made to the actual value database, and the water distribution from the water treatment plant of each water supply system taking into account the amount of water exchange between the distribution blocks is considered. An operation planning means for making an operation plan up to distribution of water to the block, a water distribution amount setting means for setting a water distribution amount planned by the operation planning means, a process information database for storing process information of a water supply system, and a water distribution A process value system that simulates process behavior by referring to process information based on the water distribution capacity set by the capacity setting means. A water purification amount output means for outputting the water distribution amount set by the water distribution amount setting means when it is determined that there is no abnormality with reference to the simulation result of the process value simulation means. And a valve control means for controlling a valve so as to achieve the purified water flow output from the purified water flow output means.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
<First embodiment>
A first embodiment of the present invention will be described with reference to FIG.
The description will proceed on the assumption that the main system configuration to which the present invention is applied is as shown in FIG.
1 includes a demand forecasting unit 61, a distribution amount calculation unit 62, a distribution amount setting unit 63, a process value simulation unit 64, a process information DB (database) 65, and an abnormality confirmation block 66. , A water purification amount output means 67, and a valve control means 68.
[0018]
In principle, purified water produced at the water purification plant 10A is supplied to the water distribution block 30A via the water distribution plant 20A. Similarly, purified water produced in the water purification plants 10B and 10C is supplied to the water distribution blocks 30B and 30C via the water distribution plants 20B and 20C. Further, as described above, a water exchange path including a valve is provided between each system.
[0019]
In such a main system, for example, a case where water intake restriction is imposed on the dam 9B which is an intake source of the water purification plant 10B of the system B, and the purified water amount required in the water distribution block 30B cannot be produced in the water purification plant 10B. Think.
[0020]
The purified water produced at the water purification plant 10B is usually supplied to the water distribution block 20B. However, when the amount of water produced in the water purification plant 10B is insufficient, it is necessary to provide the purified water produced in the water purification plants 10A and 10C to the B system. The demand forecasting means 61 refers to the process information DB 65, performs water demand forecasting based on the past water demand actual values accumulated therein, and based on the predicted demand amount, the water distribution accommodating means 62 performs the water distribution accommodating amount. Is calculated. The demand forecasting means 61 can perform forecasting by applying, for example, one having the principle and configuration described in Patent Document 2. The operator determines and sets the amount of accommodation from the water distribution station 20A and the water distribution station 20C by using the water distribution amount setting means 63 based on the water distribution amount calculated by the water distribution amount calculation means 62. In response to the setting, the process value simulation means 64 simulates the behavior of the process (pressure fluctuations in the pipeline, changes in the flow direction, etc.) when operated with the amount of water set by the water distribution amount setting means 63. I do. Here, a hydraulic model is generated based on the process information stored in the process information DB 65, and simulation is performed using the generated model. The following models generally known can be used for the hydraulic model. Here, the process information stored in the process information DB 65 includes, for example, the type, length, inner diameter, connection relationship, flow rate, pressure, water level, installation positions of various sensors, sensor outputs, Includes characteristics of each device including pumps and valves, water intake restriction information of water intake sources, and the like.
[0021]
For a single line, valve, pump, etc., the following relationship must be satisfied between the flow rate and the head loss. That is, E1 is the primary pressure of the pipeline, valve, pump, etc., E2 is the secondary pressure of the pipeline, valve, pump, etc., and hf is the head loss in the pipeline, valve, pump, etc. (negative in the case of a pump. )
E1-E2 = hf (1)
It is.
[0022]
At the nodes, which are the connection points of the pipelines, the following equation, called the continuous equation of the flow rate or the nodal equation, must be satisfied. That is,
qin = qout (2)
Here, qin is the total amount of inflow to a certain node, and qout is the total amount of outflow from a certain node.
[0023]
The operator confirms the process behavior calculated by the process value simulation means 64 (abnormality confirmation block 66), and if there is no abnormality, outputs the purified water exchange amount as the purified water exchange amount set by the distributed water amount set by the distributed water amount setting means 63. Output to means 67. If it is determined that there is an abnormality in the process behavior, a new water distribution amount is set again by using the water distribution amount setting means 63, and the simulation is performed again by the process value simulation means 64. The purified water interchange amount output means 67 issues a valve operation command to the valve control means 68 so as to achieve the inputted purified water interchange amount while referring to the process information DB. The valve control means 68 controls the valves related to the main system based on the input operation command to control the amount of purified water exchange.
[0024]
In this case, it is also possible to use the water supply planning means 53 and the intake / filtration planning means 54 (FIG. 6) to make an operation plan for the water purification and distribution plant.
[0025]
According to this embodiment, the process behavior at the time of water distribution accommodation is determined by simulation, and it is determined whether there is no problem with the set accommodation amount. However, by checking the simulation values, water accommodation can be performed accurately.
[0026]
<Second embodiment>
A second embodiment will be described with reference to FIG.
[0027]
2 includes a demand prediction unit 71, a similar date search unit 72, an actual value DB (database) 73, a distribution amount setting unit 74, a purified water amount output unit 75, and a valve control unit. 76.
[0028]
The demand prediction means 71 predicts the demand of each of the water distribution blocks 30A, 30B, 30C. For this prediction, a known method (for example, see Patent Document 2) can be used. The similar day search unit 72 searches for past actual demand amounts similar to the demand amounts of the respective water distribution blocks predicted by the demand prediction unit 71, and the same between the two water purification plants and the same date and time. Is obtained. The search key may use the predicted value of the demand of each water distribution block as it is, may use a statistically processed value, or may use a value obtained by performing numerical processing such as frequency analysis. . The sum of squared errors is used to determine the similarity. That is, the sum of the square error of the search key and each record of the actual value database 73 (the actual demand amount for each day) is used. The record with the smallest sum of squared errors calculated for each record is a similar record. Based on the obtained amount of water exchange between the water treatment and distribution plants, the water distribution amount is set by the water distribution amount setting means 74, and is output to the purified water amount output means 75 as the water purification amount.
[0029]
The purified water interchange amount output unit 75 issues a valve operation command to the valve control unit 76 so that the input interchange amount can be achieved. It is also possible for the operator to manually correct the entered amount of accommodation. The valve control means 76 controls each valve based on the input operation command.
[0030]
Also in this case, it is possible to make an operation plan of the water purification and distribution plant by applying the conventional technology and using the water supply planning means 53 and the intake / filtration planning means 54 (FIG. 6).
[0031]
According to this embodiment, the amount of water exchange can be determined based on the past actual values similar to the current situation, and the process behavior at that time can be confirmed. Therefore, a more appropriate amount of purified water exchange can be set. be able to.
[0032]
<Third embodiment>
A third embodiment will be described with reference to FIG.
3 includes a demand prediction unit 81, a similar date search unit 82, an actual value DB (database) 83, a water distribution interchange amount setting unit 84, a process value simulation unit 85, a process information DB ( (Database) 86, an abnormality confirmation block 87, a purified water exchange amount output unit 88, and a valve control unit 89.
[0033]
The demand prediction means 81 predicts the demand of each of the water distribution blocks 30A, 30B, 30C. At this time, as the prediction method, the same method as the demand prediction method by the demand prediction means 61, 71 in the first or second embodiment may be used. The similar day search unit 82 searches the actual value DB 83 for past actual demand amounts similar to the demand amounts of the respective water distribution blocks predicted by the demand prediction unit 81, and searches for the same date and time as the coincident or similar demand amounts. Obtain the interchange amount between water treatment plants. The similar day search means 82 may be searched by the same method as the similar day search means 72 in the second embodiment. The sum of squared errors is statistically used to determine the similarity. In other words, it is the sum of the square errors of the search key and each record (the actual demand value for each day) of the actual value database 83. The record with the smallest sum of squared errors calculated for each record is a similar record. The obtained interchange amount between the water treatment and distribution plants is output to the water supply interchange amount setting means 84. The water distribution amount setting means 84 sets the past actual value acquired by the similar day search means 82 as the water distribution amount. Note that the set amount of accommodation can be changed. The process value simulation means 85 simulates the behavior of the process (pressure fluctuations in the pipeline, changes in the flow direction, etc.) when operated with the amount of water set by the water distribution amount setting means 84. Here, a hydraulic model is generated based on the process information database 86, and simulation is performed using the generated model.
[0034]
The operator confirms the process behavior simulated by the process value simulation means 85 in the abnormality confirmation block 87. If there is no abnormality, the operator sets the amount of water set by the water distribution amount setting means 84 to the purified water amount output means 88 to obtain the purified water amount. Is output as If there is an abnormality in the process behavior, the amount of accommodation is set again using the water distribution accommodation amount setting means 84, and the simulation is performed again.
[0035]
The purified water accommodation amount output means 88 issues a valve operation command to the valve control means 89 so that the accommodation amount input from the process value simulation means 85 is achieved. The valve control means 89 controls a valve of the main system based on the input operation command.
[0036]
Also in this case, an operation plan of the water purification and distribution plant can be made using the water supply planning means 53 and the water intake / filtration planning means 54.
[0037]
According to this embodiment, the amount of water exchange can be determined based on the past actual values similar to the current situation, and the process behavior at that time can be confirmed. Therefore, a more appropriate amount of purified water exchange can be set. be able to.
[0038]
<Fourth embodiment>
A fourth embodiment will be described with reference to FIG.
[0039]
The inter-distribution-block water interchange support device 90 shown in FIG. 4 includes a demand forecasting unit 91, an operation planning unit 92, an actual value DB 93, a water distribution interchange amount setting unit 94, a process value simulation unit 95, a process information DB 96, an abnormality confirmation block 97, It comprises a change confirmation block 98, a purified water exchange amount output unit 99, and a valve control unit 100.
[0040]
The demand prediction means 91 predicts the demand amount of each water distribution block in the same manner as the demand prediction means 61, 71, 81. The operation planning means 92, based on the demand of each of the water distribution blocks 30A, 30B, 30C predicted by the demand forecasting means 91, considers the amount of water distribution between the water distribution blocks, and considers the water treatment plants 10A. A water supply plan from 10B and 10C is created, and a water purification production plan and a water intake plan at the water purification plant are created based on the created water supply plan. In preparing a water purification production plan and a water intake plan, it is possible to take into account water exchange between water treatment plants. A known method (for example, see Patent Document 1) can be used to create these plans.
[0041]
The water distribution amount setting means 94 sets the water distribution amount planned by the operation planning means 92. The amount of accommodation set here can be manually changed by the operator. The process value simulation means 95 simulates the behavior of the process (pressure fluctuations in the pipeline, changes in the flow direction, etc.) when operated with the capacity set by the water distribution capacity setting means 94. Here, a hydraulic model is generated based on the process information stored in the process information DB 96, and a simulation is performed using the generated model.
[0042]
The operator checks in block 97 whether or not there is any abnormality in the process behavior calculated by the process value simulation means 95. If there is no abnormality, the operator further checks in block 98 whether or not there is any change. The amount of accommodation set at 94 is output to the purified water accommodation amount output means 99. If there is no change, valve control of the main system is performed based on an operation command input via the valve control means 100. If an abnormality is confirmed in the process behavior in block 97, a new accommodation amount is set again using the water distribution accommodation amount setting means 94, and the simulation is performed again. The purified water interchange amount output unit 99 issues a valve operation command to the valve control unit 100 so that the input purified water interchange amount can be achieved.
[0043]
Also in this embodiment, similarly to each embodiment, it is possible to make an operation plan of the water purification and distribution plant using the water supply planning means 53 and the water intake / filtration planning means 54.
[0044]
According to this embodiment, it is possible to determine the amount of water exchange based on the past actual values similar to the current situation, and confirm the process behavior at that time, and therefore, set a more appropriate amount of water exchange. can do.
[0045]
【The invention's effect】
As described above, according to the present invention, the operator is provided with support information for determining the amount of water exchange, grasps the process behavior at the time of water exchange, and appropriately controls the water treatment and distribution plants associated with water exchange. A simple operation plan can be created.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a first embodiment of a water exchange support device between water distribution blocks according to the present invention.
FIG. 2 is a block diagram showing a second embodiment of a water exchange support device between water distribution blocks according to the present invention.
FIG. 3 is a block diagram showing a third embodiment of the water distribution support device between water distribution blocks according to the present invention.
FIG. 4 is a block diagram showing a fourth embodiment of the water exchange support device between water distribution blocks according to the present invention.
FIG. 5 is a system diagram showing a configuration example of a water supply system to which the present invention is applied.
FIG. 6 is a block diagram showing a conventional water exchange support device between water distribution blocks.
[Explanation of symbols]
9A Well 9B Dam 9C River 10A Water treatment plant 10B Water treatment plant 10C Water treatment plant 11 Flow meter 12 Landing well 13 Filtration pond 14 Flow meter 15 Water purification tank 16 Flow meter 20A Water distribution plant 20B Distribution plant 20C Distribution plant 21 Distribution reservoir 22 Flow meter 30A Water distribution Block 30B Water distribution block 30C Water distribution blocks 41, 43, 45, 46, 48 Water interchange valves 42, 44, 47 Flow meter 50 Water interchange support device between water distribution blocks 51 Purified water interchange amount setting means 52 Valve control means 53 Water supply planning means 54 Intake / filtration planning means 60 Water distribution support device between distribution blocks 61 Demand forecasting means 62 Distribution capacity calculation means 63 Distribution capacity setting means 64 Process value simulation means 65 Process information DB (database)
66 Abnormality confirmation block 67 Purified water exchange amount output means 68 Valve control means 70 Water exchange support device between water distribution blocks 71 Demand prediction means 72 Similar day search means 73 Actual value DB (database)
74 Water distribution amount setting means 75 Water purification amount output means 76 Valve control means 80 Water distribution support device between water distribution blocks 81 Demand prediction means 82 Similar day search means 83 Actual value DB (database)
84 water distribution capacity setting means 85 process value simulation means 86 process information DB (database)
87 Abnormality confirmation block 88 Water purification amount output means 89 Valve control means 90 Water distribution support device between water distribution blocks 91 Demand prediction means 92 Operation planning means 93 Actual value DB (database)
94 Water distribution capacity setting means 95 Process value simulation means 96 Process information DB (database)
97 Abnormality confirmation block 98 Change confirmation block 99 Purified water exchange amount output means 100 Valve control means

Claims

A plurality of unit water supply systems having a water purification plant for purifying water from a water intake source and a water distribution plant for distributing the obtained purified water to a unique water distribution block are provided, and water can be exchanged between the unit water supply systems. In each of the unit water supply systems as described above, in the water exchange support device between the water distribution blocks in the water supply equipment connected via an interconnecting pipe having a valve,
Demand forecasting means for predicting the purified water demand of each distribution block based on the statistical value of past water demand results, and the amount of water distribution between the distribution blocks based on the purified water demand predicted by the demand predicting means. Means for calculating and setting, a process information database for storing the process information of the water supply system, and a simulation of the process behavior by referring to the process information stored in the process information database based on the set distribution amount of water distribution. Process value simulation means for performing, the purified water interchange amount output means for outputting the set water supply interchange amount as the purified water interchange amount when it is determined that there is no abnormality with reference to the simulation result of the process value simulation means, and the purified water interchange Controlling the valve so as to achieve the purified water exchange amount output from the amount output means. That the valve control means and, distribution blocks between water interchange support apparatus characterized by comprising a.

A plurality of unit water supply systems having a water purification plant for purifying water from a water intake source and a water distribution plant for distributing the obtained purified water to a unique water distribution block are provided, and water can be exchanged between the unit water supply systems. In each of the unit water supply systems as described above, in the water exchange support device between the water distribution blocks in the water supply equipment connected via an interconnecting pipe having a valve,
Demand forecasting means for predicting the purified water demand of each water distribution block based on the statistical value of past water demand results, a performance value database storing past process performance values of each water distribution block, and demand forecasting means. A past date having a performance value similar to the purified water demand, a similar date search means for searching by referring to the performance value database, and a water distribution amount based on the performance value of the past date obtained by the search. The water supply interchange amount setting means to be set, the purified water interchange amount output means that outputs the purified water interchange amount according to the water interchange amount set by the water exchange interchange amount setting means, and the purified water interchange amount output from the purified water interchange amount output means. And a valve control means for controlling the valve so as to achieve the water supply support device between water distribution blocks.

A plurality of unit water supply systems having a water purification plant for purifying water from a water intake source and a water distribution plant for distributing the obtained purified water to a unique water distribution block are provided, and water can be exchanged between the unit water supply systems. In each of the unit water supply systems as described above, in the water exchange support device between the water distribution blocks in the water supply equipment connected via an interconnecting pipe having a valve,
Demand forecasting means for predicting the purified water demand of each water distribution block based on the statistical value of past water demand results, a performance value database storing past process performance values of each water distribution block, and demand forecasting means. A past date having a performance value similar to the purified water demand, a similar date search means for searching by referring to the performance value database, and a water distribution amount based on the performance value of the past date obtained by the search. Means for setting the amount of water distribution to be set, a process information database for storing the process information of the water supply system, and the process behavior stored by referring to the process information stored in the process information database based on the set water supply and distribution amount. Process value simulation means for performing simulation, and simulation of the process value simulation means And when it is determined that there is no abnormality with reference to the result, the set amount of water distribution is output as the amount of purified water, and the amount of purified water that is output from the amount of purified water is output. And a valve control means for controlling the valve.

A plurality of unit water supply systems having a water purification plant for purifying water from a water intake source and a water distribution plant for distributing the obtained purified water to a unique water distribution block are provided, and water can be exchanged between the unit water supply systems. In each of the unit water supply systems as described above, in the water exchange support device between the water distribution blocks in the water supply equipment connected via an interconnecting pipe having a valve,
Demand forecasting means for predicting the purified water demand of each water distribution block based on the statistical value of past water demand results, a performance value database storing past process performance values of each water distribution block, and demand forecasting means. Based on the demand for purified water, referring to the actual value database, and an operation planning means for establishing an operation plan from intake of the water purification plant of each water supply system to water distribution to the distribution block in consideration of the amount of water exchange between the distribution blocks. A distribution capacity setting means for setting a distribution capacity planned by the operation planning means, and a process information database for storing process information of the water supply system,
A process value simulation unit that simulates a process behavior by referring to the process information based on the water distribution amount set by the water distribution amount setting unit, and determines that there is no abnormality by referring to a simulation result of the process value simulation unit When the water supply amount set by the water supply amount setting unit is output, the purified water interchange amount output unit that outputs the purified water interchange amount that outputs the purified water interchange amount, and the purified water interchange amount output from the purified water interchange amount output unit are achieved. And a valve control means for controlling the valve.