JP4864513B2 - Vacuum line pressure monitoring method and abnormality monitoring notification device - Google Patents

Vacuum line pressure monitoring method and abnormality monitoring notification device Download PDF

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JP4864513B2
JP4864513B2 JP2006103276A JP2006103276A JP4864513B2 JP 4864513 B2 JP4864513 B2 JP 4864513B2 JP 2006103276 A JP2006103276 A JP 2006103276A JP 2006103276 A JP2006103276 A JP 2006103276A JP 4864513 B2 JP4864513 B2 JP 4864513B2
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圭介 池田
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Ebara Corp
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本発明は、真空式下水道システムにおいて、真空管路の圧力状況（運転状況）を監視する真空管路の圧力監視方法、及び異常が発生した場合に所定箇所に通報する異常監視通報装置に関するものである。   The present invention relates to a vacuum line pressure monitoring method for monitoring the pressure status (operating status) of a vacuum pipe in a vacuum sewer system, and an abnormality monitoring notification device for reporting to a predetermined location when an abnormality occurs.

真空式下水道システムにおいて、真空弁ユニット又は真空管路において事故が発生した場合に、発生場所の探索が必要となる。もっとも簡便な探索方法としては真空管路に設置されている区間弁１０６（図７参照）を順番に閉鎖していくことにより、事故区間を探索する方法や真空弁ユニット１０１（図１参照）を巡回点検する方法がとられてきた。この探索方法では、設置されている真空弁ユニットが５０箇所程度の場合、探索に通常１時間から２時間程度を要する。
特開平３−０４３５２７号公報 In the vacuum sewer system, when an accident occurs in the vacuum valve unit or the vacuum pipe, it is necessary to search for the occurrence location. As the simplest search method, the section valve 106 (see FIG. 7) installed in the vacuum pipe line is closed in order to search for the accident section or the vacuum valve unit 101 (see FIG. 1). A method of checking has been taken. In this search method, when about 50 vacuum valve units are installed, the search usually takes about 1 to 2 hours.
JP-A-3-043527

規模が大きい真空式下水道システムにおいては、真空弁ユニット又は真空管路に事故が発生した場合にその発生場所の探索に多くの時間が必要であり、この探索作業が管理者への負担となるため、地形条件や維持管理体制を考慮して、各真空弁ユニットに通報装置が設置される場合もある。この真空弁ユニットの通報装置には「現場通報式」、「専用線式」、「無線式」などがあり、真空弁ユニットの異常として水位高と弁開放を監視し、異常発生を通報することが可能である。ただし、真空弁ユニットに通報装置を設置する場合、その設置数が多いことから通報装置自体の設置及び維持管理の費用が高額となるという問題点があった。   In a large-scale vacuum sewer system, when an accident occurs in a vacuum valve unit or a vacuum pipeline, it takes a lot of time to search for the occurrence location, and this search work becomes a burden on the administrator. In consideration of topographical conditions and maintenance management system, a notification device may be installed in each vacuum valve unit. This vacuum valve unit reporting device includes "on-site reporting type", "exclusive line type", "wireless type", etc., and monitors the water level high and valve opening as a malfunction of the vacuum valve unit, and reports the occurrence of abnormality. Is possible. However, when the reporting device is installed in the vacuum valve unit, there is a problem that the cost of installing and maintaining the reporting device itself becomes high due to the large number of the installed devices.

本発明は上述の点に鑑みてなされたものであり、その目的は、真空式下水道システムにおいて真空弁ユニット又は真空管路の事故が発生した場合、短い探索時間で事故発生場所を探索できると共に、維持管理の負担を軽減できる真空管路の圧力監視方法、及び異常監視通報装置を提供することにある。   The present invention has been made in view of the above points. The purpose of the present invention is to find and maintain an accident occurrence place in a short search time when an accident of a vacuum valve unit or a vacuum pipe line occurs in a vacuum sewer system. An object of the present invention is to provide a vacuum line pressure monitoring method and an abnormality monitoring and reporting device that can reduce the management burden.

上記課題を解決するため請求項１に記載の発明は、真空管路の各系統の末端部及び中間部の圧力値を採取し、該採取した末端部又は中間部の圧力値と前記真空管路の圧力損失計算書から予測される当該末端部又は中間部の圧力値とを比較することにより、前記真空管路の圧力状況を監視することを特徴とする真空管路の圧力監視方法にある。 In order to solve the above-mentioned problem, the invention described in claim 1 collects pressure values at the end and middle of each system of the vacuum pipe, and collects the pressure value of the collected end or middle and the pressure of the vacuum pipe. by comparing the pressure value of the distal portion or intermediate portion Ru predicted from loss statements, in a pressure monitoring method of a vacuum conduit, characterized by monitoring the pressure conditions of the vacuum line.

請求項２に記載の発明は、真空管路の各系統の末端部及び中間部に圧力監視手段を設け、該圧力監視手段で前記末端部又は中間部の圧力値を採取すると共に、該採取した末端部又は中間部の圧力値と前記真空管路の圧力損失計算書から予測される当該末端部又は中間部の圧力値とを比較して前記真空管路の圧力状況を監視し、圧力状況が異常と判断した場合、通信装置を介して所定場所に通報することを特徴とする真空管路の異常監視通報装置にある。 The invention according to claim 2 is provided with pressure monitoring means at the terminal and intermediate parts of each system of the vacuum pipe, and the pressure monitoring means collects the pressure value of the terminal part or the intermediate part, and the collected terminals part or compared pressure value of the intermediate portion between the pressure value of the distal portion or intermediate portion Ru is predicted from the pressure loss statement for the vacuum line to monitor the pressure conditions of the vacuum line, the pressure conditions abnormal When the determination is made, the vacuum line abnormality monitoring and reporting device is characterized in that a predetermined location is reported through the communication device.

請求項３に記載の発明は、請求項２に記載の真空管路の異常監視通報装置において、前記圧力監視手段は、前記末端部又は中間部の圧力値を検出する圧力発信器と、該圧力発信器で検出した圧力値を自動的に記録すると共に、該圧力値と前記真空管路の圧力損失計算書から予測される当該末端部又は中間部の圧力値とを比較して前記真空管路の圧力状況を監視するデータ自動記録・圧力監視装置を備えたことを特徴とする。 According to a third aspect of the present invention, in the vacuum line abnormality monitoring / notifying device according to the second aspect, the pressure monitoring means includes a pressure transmitter for detecting a pressure value of the end portion or the intermediate portion, and the pressure transmission. automatically records the detected pressure value in the vessel, pressure in the vacuum line by comparing the pressure value of the distal portion or intermediate portion Ru is expected the pressure value and the pressure loss statement for the vacuum line It is equipped with an automatic data recording / pressure monitoring device for monitoring the situation.

請求項４に記載の発明は、請求項２に記載の真空管路の異常監視通報装置において、前記圧力監視手段は、前記末端部又は中間部の圧力値が前記真空管路の圧力損失計算書から予測される圧力値に基づいて設定された設定圧力値を当該末端部又は中間部の圧力値が超えた場合にＯＮ又はＯＦＦとなる圧力スイッチであることを特徴とする。 According to a fourth aspect of the present invention, in the vacuum line abnormality monitoring and reporting device according to the second aspect, the pressure monitoring means predicts the pressure value of the end part or the intermediate part from the pressure loss calculation sheet of the vacuum line. It characterized in that it is a pressure switch to be oN or OFF when the set set pressure value based on the pressure value exceeds the pressure value of the distal portion or intermediate portion to be.

請求項５に記載の発明は、請求項２乃至４のいずれか１項に記載の真空管路の異常監視通報装置において、前記真空管路には逆止弁を設置したことを特徴とする。   According to a fifth aspect of the present invention, in the vacuum line abnormality monitoring and reporting device according to any one of the second to fourth aspects, a check valve is provided in the vacuum line.

請求項１に記載の発明によれば、採取した末端部又は中間部の圧力値（圧力変動データの圧力値）と真空管路の圧力損失計算書から予測される当該末端部又は中間部の圧力値とを比較することにより、真空管路の圧力状況を監視するので、真空弁ユニット又は真空管路の事故発生場所を短い時間で探索でき、維持管理の負担を軽減することができる。 According to the invention described in claim 1, the distal portion or pressure of the intermediate portion collected end portion or pressure value of the intermediate portion (pressure value of the pressure variation data) Ru is predicted from the pressure loss statement for vacuum line By comparing the values with each other , the pressure state of the vacuum pipe line is monitored, so that the location where the vacuum valve unit or the vacuum pipe line has occurred can be searched in a short time, and the burden of maintenance can be reduced.

請求項２に記載の発明によれば、真空管路の各系統の末端部及び中間部に設けた圧力監視手段で末端部又は中間部の圧力値を採取し、該圧力値と真空管路の圧力損失計算書から予測される当該末端部又は中間部の圧力値とを比較して真空管路の圧力状況を監視するので、真空弁ユニット又は真空管路の事故発生場所を短い時間で探索し、通報装置を介して所定の場所に通報できる。 According to the invention described in claim 2, the pressure value of the distal portion or the middle portion was collected by pressure monitoring means provided in the distal portion and the intermediate portion of each line of the vacuum line, the pressure loss of the pressure value and the vacuum line since monitoring the pressure conditions of the vacuum line by comparing the pressure value of the distal portion or intermediate portion Ru predicted from statement searches for the site of the accident in the vacuum valve unit or vacuum line in a short time, reporting apparatus You can report to a predetermined place via.

請求項３に記載の発明によれば、圧力監視手段は、圧力発信器と、データ自動記録・圧力監視装置を備え、検出した圧力値（圧力変動データの圧力値）を自動的に記録すると共に、該圧力値と真空管路の圧力損失計算書から予測される当該末端部又は中間部の圧力値とを比較して真空管路の圧力状況を監視するので、連続的に圧力変動を監視することが可能であるため、様々な圧力変動パターン（圧力値変動パターン）を採取可能であり、比較検討も容易である。 According to the third aspect of the present invention, the pressure monitoring means includes a pressure transmitter and a data automatic recording / pressure monitoring device, and automatically records the detected pressure value (pressure value of pressure fluctuation data). since monitoring the pressure conditions of the vacuum line by comparing the pressure value of the distal portion or intermediate portion Ru is predicted from the pressure loss statement of the pressure value and the vacuum line, continuously monitoring the pressure variation Therefore, various pressure fluctuation patterns (pressure value fluctuation patterns) can be collected, and a comparative study is easy.

請求項４に記載の発明によれば、圧力監視手段は、末端部又は中間部の圧力値が真空管路の圧力損失計算書から予測される圧力値に基づいて設定された設定圧力値を当該末端部又は中間部の圧力値が超えた場合にＯＮ又はＯＦＦとなる圧力スイッチであるので、安価な真空管路の異常監視通報装置を構築できる。

According to the fourth aspect of the present invention, the pressure monitoring means outputs the set pressure value in which the pressure value at the end portion or the intermediate portion is set based on the pressure value predicted from the pressure loss calculation document of the vacuum line. since part or pressure of the intermediate portion is a pressure switch to be oN or OFF when it exceeds, can build an abnormality monitoring and reporting device of inexpensive vacuum line.

請求項５に記載の発明は、真空管路には逆止弁を設置したので、真空管路の縦断形状によらず、確実に異常の発生区間を特定できる。   In the fifth aspect of the present invention, since the check valve is provided in the vacuum pipe, it is possible to reliably specify the abnormality occurrence section regardless of the vertical profile of the vacuum pipe.

以下、本発明の実施の形態例を図面に基づいて説明する。図１は真空式下水道システムの概略構成例を示す図である。図示するように、真空式下水道システム１００は真空弁ユニット１０１と、真空管路１０２、真空ステーション（中継ポンプ場）１０３から構成される。真空式下水道システム１００の設計にあたっては必ず真空管路１０２の水理計算を行い、真空管路１０２の系統ごとに算出する静的な状態での損失と、動的な状態での損失が許容圧力損失内になるような設計を行う。即ち、真空式下水道収集システム 技術マニュアル（２００２年度版）、編集者：玉木勉、発行所：財団法人下水道新技術推進機構、平成１４年３月３１日発行、第４章「管路設計」（Ｐ３６〜３７）には「真空下水管の許容圧力損失は、中継ポンプ場の設定真空度と、末端の真空弁ユニットで必要とする真空度の差であり、各系統ごとに算出する静的な状態での損失と、動的な状態での損失が、いずれもこの許容圧力損失以内となるように設計を行う。」と記載されている。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration example of a vacuum sewer system. As shown in the figure, the vacuum sewer system 100 includes a vacuum valve unit 101, a vacuum pipe line 102, and a vacuum station (relay pump station) 103. When designing the vacuum sewer system 100, the hydraulic calculation of the vacuum line 102 is always performed, and the loss in the static state calculated for each system of the vacuum line 102 and the loss in the dynamic state are within the allowable pressure loss. Design to become. That is, vacuum sewer collection system technical manual (2002 edition), editor: Tsutomu Tamaki, publisher: Foundation for Sewerage New Technology Promotion, issued on March 31, 2002, Chapter 4 “Pipe Design” ( P36 to 37) “The allowable pressure loss of the vacuum sewage pipe is the difference between the set vacuum degree of the relay pump station and the vacuum degree required for the terminal vacuum valve unit, and is a static value calculated for each system. The design is made so that the loss in the state and the loss in the dynamic state are both within this allowable pressure loss. "

真空管路１０２の許容圧力損失は「真空ステーション１０３の設定真空度」と「末端の真空弁ユニット１０１で必要とする真空度」の差として算出され、一般には真空ステーション１０３の設定圧力が通常−６０〜−７０ｋＰａ、真空弁ユニット１０１で必要な真空度が−２５ｋＰａであることから、次のように求めることができる。
許容圧力損失＝−２５−（−６０）＝３５Ｐａ The allowable pressure loss of the vacuum line 102 is calculated as a difference between “the set vacuum degree of the vacuum station 103” and “the vacuum degree required for the vacuum valve unit 101 at the end”, and generally the set pressure of the vacuum station 103 is normally −60. Since the degree of vacuum necessary for the vacuum valve unit 101 is -25 kPa, it can be determined as follows.
Allowable pressure loss = −25 − (− 60) = 35 Pa

本発明に係る真空管路の圧力監視方法は、この設計時の水理計算結果である圧力損失計算値と、真空式下水道システム運転後における実際の真空管路１０２の圧力変動を比較することにより、該真空式下水道システムの真空管路の圧力状況（運転状況）を監視し、異常を場合通報する方法である。   The pressure monitoring method for a vacuum pipe according to the present invention compares the pressure loss calculation value, which is the hydraulic calculation result at the time of design, with the actual pressure fluctuation of the vacuum pipe 102 after the operation of the vacuum sewer system. This is a method of monitoring the pressure status (operating status) of the vacuum pipe line of the vacuum sewer system and notifying an abnormality.

図２は本発明に係る真空管路の圧力監視方法を実施する真空式下水道システムの一平面構成例を示す図である。図２において太い実線は真空管路１０２を示し、太い破線は自然流下管路１０４を示す。１０６−１、１０６−２は真空管路１０２に設けた区間弁、１０３は真空ステーション（中継ポンプ場）、Ａは真空管路１０２の末端部、１０５は真空管路１０２の末端部Ａに設けられた圧力監視手段である。なお、真空管路１０２に沿って付けられた丸付き数字１〜８は路線番号を示す。 FIG. 2 is a view showing an example of a plane configuration of a vacuum sewer system for carrying out the pressure monitoring method for a vacuum pipe line according to the present invention. In FIG. 2, the thick solid line indicates the vacuum line 102, and the thick broken line indicates the natural flow line 104. 106-1 and 106-2 are section valves provided in the vacuum line 102, 103 is a vacuum station (relay pump station), A is a terminal part of the vacuum line 102, and 105 is a pressure provided at a terminal part A of the vacuum line 102. It is a monitoring means. In addition, the numbers 1-8 with a circle attached | subjected along the vacuum pipe line 102 show a route number.

図２の真空管路１０２の圧力損失計算書を図３に示す。図３において、路線番号１〜８は図２の丸付き数字で示す路線番号１〜８に対応している。図３に示すように、路線番号１〜８での真空管路１０２の管径（ｍｍ）、管路長（ｍ）、総水量（ｍ3／ｈｒ）、リフト個数、総リフト高さが設定され、摩擦損失（ｋＰａ）、摩擦損失率（ｋＰａ／１００ｍ）、動的状態での圧力損失（ｋＰａ）、静的状態での圧力損失（ｋＰａ）が計算される。 FIG. 3 shows a pressure loss calculation sheet for the vacuum line 102 in FIG. In FIG. 3, route numbers 1 to 8 correspond to route numbers 1 to 8 indicated by circled numbers in FIG. As shown in FIG. 3, the tube diameter (mm), the tube length (m), the total water amount (m 3 / hr), the number of lifts, and the total lift height are set for the line numbers 1 to 8. , Friction loss (kPa), friction loss rate (kPa / 100 m), pressure loss (kPa) in the dynamic state, and pressure loss (kPa) in the static state are calculated.

図４、図５は、この真空管路１０２の末端部Ａでの圧力の代表的な時間変動パターンを示す。以下、図２に示すように、真空管路１０２の末端部Ａに圧力監視手段１０５を設置し、その圧力変動データを採取する場合を想定して本発明に係る真空管路の圧力監視方法を説明する。図３の圧力損失計算結果から、真空管路１０２の末端部Ａでの動的圧力損失の最大値は１９．２６２ｋＰａである。この最大圧力損失値を用いて真空ステーション１０３の運転圧力を−６０ｋＰａとした場合の末端部Ａの到達圧力Ｐ１を試算すると
Ｐ１＝−６０＋１９．２６２＝−４０．７３８（ｋＰａ）
となる。 4 and 5 show typical time fluctuation patterns of the pressure at the end portion A of the vacuum line 102. FIG. Hereinafter, as shown in FIG. 2, a pressure monitoring method for a vacuum pipe according to the present invention will be described on the assumption that pressure monitoring means 105 is installed at the end A of the vacuum pipe 102 and the pressure fluctuation data is collected. . From the pressure loss calculation result of FIG. 3, the maximum value of the dynamic pressure loss at the end portion A of the vacuum line 102 is 19.262 kPa. Using this maximum pressure loss value, the ultimate pressure P1 at the end A when the operating pressure of the vacuum station 103 is set to −60 kPa is estimated. P1 = −60 + 19.262 = −40.338 (kPa)
It becomes.

一方、真空式下水道システムの実際の運転においては、末端部Ａの地点で真空管路１０２の管内圧力は図４のＰAに示すように一定ではなく、真空弁の開閉、時間帯、流入汚水量などにより変動するが、図３の上述した圧力損失計算結果から算出した末端部Ａの到達圧力Ｐ１を重ね合わせて比較すると、本真空式下水道システム１００が正常に運転している場合には、基本的に管内圧力ＰAは水理計算で導かれる到達圧力（基準値）Ｐ１より高くなることはなく、常に到達圧力Ｐ１より低い（Ｐ１＞ＰA）値を示す。 On the other hand, in the actual operation of the vacuum sewer system, pipe pressure vacuum line 102 at a point distal portion A is not constant, as shown in P A in FIG. 4, the opening and closing of the vacuum valve, the time zone, the inflow wastewater amount However, when the ultimate pressure P1 of the end portion A calculated from the pressure loss calculation result of FIG. 3 described above is overlaid and compared, when the vacuum sewer system 100 is operating normally, Therefore, the pipe pressure P A does not become higher than the ultimate pressure (reference value) P1 derived by hydraulic calculation, and always shows a value lower than the ultimate pressure P1 (P1> P A ).

図５は末端部Ａの真空弁で開放事故が起こった場合を例示している。事故発生箇所から大量の空気が流れ込むことから、真空管路１０２の末端部Ａの管内圧力ＰAは圧力損失計算結果で想定された上記到達圧力（基準値）Ｐ１より高く（ＰA＞Ｐ１）なる。このような方法で圧力損失計算結果から導かれる到達圧力Ｐ１と、実際の末端部Ａの管内圧力ＰAの変動を比較し、真空式下水道システムの運転状況を監視することが可能である。 FIG. 5 illustrates a case where an open accident occurs in the vacuum valve at the end portion A. Since a large amount of air flows from the location where the accident occurred, the pipe pressure P A at the end A of the vacuum line 102 becomes higher than the ultimate pressure (reference value) P1 assumed in the pressure loss calculation result (P A > P1). . And ultimate pressure P1 derived from the pressure loss calculation results in this way, by comparing the variation of the pipe pressure P A of the actual end A, it is possible to monitor the operating conditions of the vacuum sewer system.

このような圧力監視手段１０５を真空管路１０２の末端部だけでなく、真空管路１０２の中間部に複数設置して圧力変動データを採取することで、同様に実際の管内圧力と圧力損失計算結果から導かれる到達圧力との比較を各地点で行うことができる。その圧力比較の乖離傾向をみることで異常の発生区間を特定することができる。この方法は通報装置と組み合わせて常設の異常監視通報装置として構築する場合だけでなく、維持管理において真空式下水道システム全体の機能を総合的に診断するために随時実施することが可能である。   By installing a plurality of such pressure monitoring means 105 not only at the end portion of the vacuum pipe line 102 but also at an intermediate part of the vacuum pipe line 102 and collecting pressure fluctuation data, similarly, from the actual in-pipe pressure and pressure loss calculation results, Comparisons can be made at each point with the derived ultimate pressure. By looking at the deviation tendency of the pressure comparison, it is possible to specify an abnormality occurrence section. This method can be implemented at any time in order to comprehensively diagnose the functions of the entire vacuum sewer system in maintenance management, as well as in the case of constructing as a permanent abnormality monitoring notification device in combination with the notification device.

図６は上記異常監視通報装置のシステム構成例を示す図である。図示するように、圧力監視手段１０５はそれぞれＰＨＳ無線通報装置１２０に接続され、各ＰＨＳ無線通報装置１２０は一般電話回線１２１を介して、自治体が自主管理している場合は、自治体の管理用コンピュータ１２２や管理要員が携帯する携帯電話機１２３や固定電話機１２４に接続できるようになっている。また、管理委託している場合は２４時間監視センターの監視用コンピュータ１３０に接続できるようになっている。圧力監視手段１０５は真空管路１０２の末端部Ａの管内圧力ＰAを監視し、該管内圧力ＰAが図５に示すように、圧力損失計算結果から導かれる到達圧力Ｐ１を超えて上昇した場合、異常と判断し、携帯電話機１２３や固定電話機１２４を呼び出し、音声で通報したり、管理用コンピュータ１２２や２４時間監視センターの監視用コンピュータ１３０に通報すると共に、圧力変動等の各種データを送信する。 FIG. 6 is a diagram showing a system configuration example of the abnormality monitoring notification device. As shown in the figure, each pressure monitoring means 105 is connected to a PHS radio notification device 120, and each PHS radio notification device 120 is managed by the local government when the local government independently manages it via a general telephone line 121. It can be connected to a mobile phone 123 or a fixed phone 124 that is carried by 122 or administrative personnel. Further, when the management is entrusted, it can be connected to the monitoring computer 130 of the 24-hour monitoring center. Pressure monitoring means 105 monitors the pipe pressure P A of the end portion A of the vacuum line 102, as the tube internal pressure P A is shown in FIG. 5, when the rise above the ultimate pressure P1 derived from the pressure loss calculation results The mobile phone 123 and the fixed telephone 124 are called and notified by voice, or the management computer 122 and the monitoring computer 130 of the 24-hour monitoring center are notified, and various data such as pressure fluctuations are transmitted. .

圧力監視手段１０５として管内圧力を検出する圧力発信器と、該発信器が検出した圧力変動データを自動的に記録する自動データ記録機能（データロガー機能）とこの圧力変動と図３の圧力損失計算書から予測される圧力値と比較して監視する機能を有するデータ自動記録・圧力監視装置を利用すれば、連続的に圧力変動を監視することが可能となるため、様々な圧力変動パターンの採用が可能であり、比較検討が容易にできる。   A pressure transmitter for detecting the pressure in the pipe as the pressure monitoring means 105, an automatic data recording function (data logger function) for automatically recording the pressure fluctuation data detected by the transmitter, and the pressure fluctuation and pressure loss calculation of FIG. By using a data automatic recording and pressure monitoring device that has a function to monitor by comparing with the pressure value predicted from the document, it is possible to continuously monitor the pressure fluctuation, so various pressure fluctuation patterns are adopted. It is possible to make a comparative study easily.

また、圧力監視手段１０５として圧力スイッチを用いることで更に安価な異常監視通報装置を構築することができる。この場合は圧力スイッチの設置地点に応じた上記圧力損失計算結果から導かれる到達圧力Ｐ１を該圧力スイッチの圧力設定値とし、タイマーを組み合わせて一定時間の間、設定圧力値以上に管内圧力が上昇したことを検出した場合に警報とすることが可能となる。いずれの場合も圧力監視手段１０５で採取したデータをもとに異常か否かを判断し、通報装置で通報できるようにすることにより、任意の場所に異常を通報することが可能となる。   Further, by using a pressure switch as the pressure monitoring means 105, a more inexpensive abnormality monitoring notification device can be constructed. In this case, the ultimate pressure P1 derived from the pressure loss calculation result corresponding to the installation position of the pressure switch is set as the pressure setting value of the pressure switch, and the pressure in the pipe rises above the set pressure value for a certain time by combining a timer. When it is detected that an event has occurred, an alarm can be issued. In any case, it is possible to report an abnormality to an arbitrary place by determining whether or not there is an abnormality based on the data collected by the pressure monitoring means 105 and allowing the notification device to report it.

具体的な真空管路内の圧力変動データの採取地点としては、図１の真空弁ユニット１０１、図７の区間弁１０６、点検口の圧力取り出し口等真空管路１０２の途中から圧力を取り出せる場所を選定することができる。但し、真空管路１０２の縦断形状として各圧力取出し口の間の真空管路１０２にリフトや分岐落差がある場合には、明確に各点の圧力に差が生じるが、管路が自然流下勾配の箇所では各点の圧力差が生じにくい場合が考えられる。そこで、真空管路１０２の分岐部や一定間隔ごとに逆止弁を設置し、該逆止弁の上流側に圧力取出し口を設けると、各地点の圧力差が明確となるため管路の縦断形状によらず、確実に異常の発生区間を特定することができる。   As a specific sampling point of pressure fluctuation data in the vacuum pipe, a place where pressure can be taken out from the middle of the vacuum pipe 102 such as the vacuum valve unit 101 in FIG. 1, the section valve 106 in FIG. can do. However, when there is a lift or branch drop in the vacuum pipe 102 between the pressure outlets as a vertical shape of the vacuum pipe 102, there is a clear difference in the pressure at each point. Then, the case where the pressure difference of each point does not arise easily is considered. Therefore, if a check valve is installed at each branch portion of the vacuum pipe line 102 or at regular intervals, and a pressure outlet is provided upstream of the check valve, the pressure difference at each point becomes clear, so the longitudinal shape of the pipe line Regardless of this, it is possible to reliably identify an abnormality occurrence section.

図８は真空管路１０２に設けた区間弁１０６の真空上流側に圧力スイッチ１０７を設けた例を示す図である。圧力スイッチ１０７は真空管路１０２の管内圧力が図３の圧力損失計算書から予測される圧力値に基づいて設定された設定圧力値以上に管内圧力が上昇し、それがタイマー（図示せず）に設定した所定時間継続した場合、ＰＨＳ無線通報装置１２０を介して異常を通報する。おな、ここでは無線式で通報しているが、「現場通報式」でも「専用線通報式」でもよい。   FIG. 8 is a view showing an example in which a pressure switch 107 is provided on the vacuum upstream side of the section valve 106 provided in the vacuum pipe line 102. In the pressure switch 107, the pipe pressure in the vacuum pipe line 102 rises above the set pressure value set based on the pressure value predicted from the pressure loss calculation document of FIG. 3, and this is increased by a timer (not shown). When it continues for the set predetermined time, an abnormality is reported via the PHS wireless notification device 120. Here, the report is made wirelessly, but it may be “on-site report type” or “private line report type”.

以上、本発明の実施形態を説明したが、本発明は上記実施形態に限定されるものではなく、特許請求の範囲、及び明細書と図面に記載された技術的思想の範囲内において種々の変形が可能である。なお直接明細書及び図面に記載のない何れの形状・構造・材質であっても、本願発明の作用・効果を奏する以上、本願発明の技術的思想の範囲内である。   Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. It should be noted that any shape, structure, and material not directly described in the specification and drawings are within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are exhibited.

真空式下水道システムの真空弁ユニット配列構成例を示す図である。It is a figure which shows the vacuum valve unit arrangement configuration example of a vacuum-type sewer system. 本発明に係る真空管路の圧力監視方法を実施する真空式下水道システムの一平面構成例を示す図である。It is a figure which shows the one-plane structural example of the vacuum-type sewer system which implements the pressure monitoring method of the vacuum pipe line which concerns on this invention. 図２に示す真空式下水道システムの真空管路の圧力損失計算書を示す図である。It is a figure which shows the pressure loss calculation document of the vacuum line of the vacuum-type sewer system shown in FIG. 図２に示す真空式下水道システムの真空管路の末端部Ａでの圧力の代表的な時間変動パターンを示す図である。It is a figure which shows the typical time fluctuation pattern of the pressure in the terminal part A of the vacuum pipe line of the vacuum-type sewer system shown in FIG. 図２に示す真空式下水道システムの真空管路の末端部Ａでの圧力の代表的な時間変動パターンを示す図である。It is a figure which shows the typical time fluctuation pattern of the pressure in the terminal part A of the vacuum pipe line of the vacuum-type sewer system shown in FIG. 本発明に係る真空管路の異常監視通報装置のシステム構成例を示す図である。It is a figure which shows the system structural example of the abnormality monitoring notification apparatus of the vacuum line which concerns on this invention. 真空式下水道システムの区間弁の配列構成例を示す図である。It is a figure which shows the example of an arrangement structure of the section valve of a vacuum-type sewer system. 圧力監視手段に圧力スイッチを用いた例を示す図である。It is a figure which shows the example which used the pressure switch for the pressure monitoring means.

符号の説明Explanation of symbols

１０１ 真空弁ユニット
１０２ 真空管路
１０３ 真空ステーション
１０４ 自然流下管路
１０５ 圧力監視手段
１０６ 区間弁
１０７ 圧力スイッチ
１２０ ＰＨＳ無線通報装置
１２１ 一般電話回線
１２２ 管理用コンピュータ
１２３ 携帯電話機
１２４ 固定電話機
１３０ 監視用コンピュータ DESCRIPTION OF SYMBOLS 101 Vacuum valve unit 102 Vacuum pipe 103 Vacuum station 104 Natural flow down pipe 105 Pressure monitoring means 106 Section valve 107 Pressure switch 120 PHS radio notification apparatus 121 General telephone line 122 Management computer 123 Cellular phone 124 Fixed telephone 130 Monitoring computer

Claims (5)

真空管路の各系統の末端部及び中間部の圧力値を採取し、該採取した末端部又は中間部の圧力値と前記真空管路の圧力損失計算書から予測される当該末端部又は中間部の圧力値とを比較することにより、前記真空管路の圧力状況を監視することを特徴とする真空管路の圧力監視方法。 The pressure value of the distal portion and the intermediate portion of each line of the vacuum line were collected, the collected end portion or intermediate portion of the distal end or intermediate portion with a pressure value the Ru is predicted from the pressure loss statement for vacuum line of by comparing the pressure value, the pressure monitoring method of a vacuum conduit, characterized by monitoring the pressure conditions of the vacuum line. 真空管路の各系統の末端部及び中間部に圧力監視手段を設け、該圧力監視手段で前記末端部又は中間部の圧力値を採取すると共に、該採取した末端部又は中間部の圧力値と前記真空管路の圧力損失計算書から予測される当該末端部又は中間部の圧力値とを比較して前記真空管路の圧力状況を監視し、圧力状況が異常と判断した場合、通信装置を介して所定場所に通報することを特徴とする真空管路の異常監視通報装置。 Pressure monitoring means are provided at the terminal and intermediate parts of each system of the vacuum pipe, and the pressure values of the terminal part or the intermediate part are sampled by the pressure monitoring means, and the collected pressure values of the terminal part or the intermediate part and the by comparing the pressure value of the distal portion or intermediate portion Ru is predicted from the pressure loss statement for the vacuum line to monitor the pressure conditions of the vacuum line, when the pressure status is determined to be abnormal, through the communication device A vacuum line abnormality monitoring and reporting device characterized by reporting to a predetermined place. 請求項２に記載の真空管路の異常監視通報装置において、
前記圧力監視手段は、前記末端部又は中間部の圧力値を検出する圧力発信器と、該圧力発信器で検出した圧力値を自動的に記録すると共に、該圧力値と前記真空管路の圧力損失計算書から予測される当該末端部又は中間部の圧力値とを比較して前記真空管路の圧力状況を監視するデータ自動記録・圧力監視装置を備えたことを特徴とする真空管路の異常監視通報装置。 In the vacuum line abnormality monitoring and reporting device according to claim 2,
Said pressure monitoring means includes a pressure transmitter which detects the pressure value of the distal portion or the middle portion, thereby automatically recording the detected pressure value at the pressure transmitter, the pressure loss of the between the pressure values vacuum line abnormality monitoring the vacuum line that will be predicted from the statement by comparing the pressure value of the distal portion or the middle portion, characterized in that it comprises a data logger and pressure monitoring device for monitoring the pressure conditions of the vacuum line Notification device. 請求項２に記載の真空管路の異常監視通報装置において、
前記圧力監視手段は、前記末端部又は中間部の圧力値が前記真空管路の圧力損失計算書から予測される圧力値に基づいて設定された設定圧力値を当該末端部又は中間部の圧力値が超えた場合にＯＮ又はＯＦＦとなる圧力スイッチであることを特徴とする真空管路の異常監視通報装置。 In the vacuum line abnormality monitoring and reporting device according to claim 2,
The pressure monitoring means, the pressure value of the distal portion or the distal portion pressure value to set the set pressure value based on pressure values predicted from the pressure loss statement of the vacuum line of the intermediate portion or the intermediate portion abnormality monitoring and reporting apparatus for a vacuum line, characterized in that the pressure switch to be oN or OFF when exceeded. 請求項２乃至４のいずれか１項に記載の真空管路の異常監視通報装置において、
前記真空管路に逆止弁を設置したことを特徴とする真空管路の異常監視通報装置。 In the vacuum line abnormality monitoring and reporting device according to any one of claims 2 to 4,
A vacuum line abnormality monitoring and reporting device, wherein a check valve is installed in the vacuum line.
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Publication number Priority date Publication date Assignee Title
WO2017129862A1 (en) 2016-01-26 2017-08-03 Evac Oy Method for controlling a vacuum sewage system for a building or for a marine vessel

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JP3502698B2 (en) * 1995-07-12 2004-03-02 株式会社クボタ Vacuum valve abnormality detection method
JP3784106B2 (en) * 1996-06-21 2006-06-07 株式会社酉島製作所 Vacuum sewer
JPH10159169A (en) * 1996-11-28 1998-06-16 Sekisui Chem Co Ltd Monitor for vacuum valve unit in sewerage system
JPH11222906A (en) * 1998-02-05 1999-08-17 Inax Corp Vacuum drainage system
JPH11241392A (en) * 1998-02-25 1999-09-07 Sekisui Chem Co Ltd Vacuum-type sewage system
JP4189205B2 (en) * 2001-11-15 2008-12-03 積水化学工業株式会社 Safety monitoring system using maintenance system of vacuum sewerage sewage collection device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017129862A1 (en) 2016-01-26 2017-08-03 Evac Oy Method for controlling a vacuum sewage system for a building or for a marine vessel
US10655317B2 (en) 2016-01-26 2020-05-19 Evac Oy Method for controlling a vacuum sewage system for a building or for a marine vessel

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