JPH07294510A - Automatic water quality monitor apparatus - Google Patents
Automatic water quality monitor apparatusInfo
- Publication number
- JPH07294510A JPH07294510A JP8456594A JP8456594A JPH07294510A JP H07294510 A JPH07294510 A JP H07294510A JP 8456594 A JP8456594 A JP 8456594A JP 8456594 A JP8456594 A JP 8456594A JP H07294510 A JPH07294510 A JP H07294510A
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- Prior art keywords
- water
- automatic
- measurement
- water quality
- valve
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、これまで人手によって
定期的に行なわれていた、上水道末端の給水栓や団地・
高層ビルの受水槽等の水質測定を、連続的に自動的に行
なう水質自動監視装置に係り、特に測定用の試料水の節
水を図りつつ連続測定を行なえ、また各種測定セルおよ
びセンサに付着する気泡を除去して安定した高精度の測
定を行なえるようにした水質自動監視装置に関するもの
である。BACKGROUND OF THE INVENTION The present invention relates to a faucet or a housing complex at the end of a water supply, which has been regularly performed manually until now.
It is related to an automatic water quality monitoring device that automatically and continuously measures the water quality of water tanks of high-rise buildings. Especially, it is possible to carry out continuous measurement while conserving sample water for measurement and to attach it to various measuring cells and sensors. The present invention relates to an automatic water quality monitoring device capable of performing stable and highly accurate measurement by removing air bubbles.
【０００２】[0002]
【従来の技術】従来から、例えば上水道末端の給水栓や
団地・高層ビルの受水槽等の水質測定は、人手によって
定期的に行なわれていたが、最近では、この水質測定を
自動的に行なう水質自動監視装置が提案されてきてい
る。2. Description of the Related Art Conventionally, for example, the water quality of a water tap at the end of a water supply system or a water tank of a housing complex or a high-rise building has been regularly measured manually, but recently, the water quality is automatically measured. Automatic water quality monitoring devices have been proposed.
【０００３】図３はこの種の水質自動監視装置の配管構
成例を示す概要図、図４は同水質自動監視装置の動作の
一例を示すタイムチャート図である。図３において、こ
の水質自動監視装置は、その測定項目が、残留塩素、ｐ
Ｈ、導電率、水温、水圧の５項目である。この場合、配
管導入の系統としては２系統あり、そのうち一系統は水
圧測定のみの系統であり、もう一つの系統は残りの４項
目の測定を行なう系統となっている。FIG. 3 is a schematic diagram showing an example of the piping configuration of this type of automatic water quality monitoring device, and FIG. 4 is a time chart diagram showing an example of the operation of the automatic water quality monitoring device. In FIG. 3, this automatic water quality monitoring device has measurement items such as residual chlorine, p
The five items are H, conductivity, water temperature, and water pressure. In this case, there are two systems for introducing pipes, one of which is a system for measuring water pressure only, and the other system is a system for measuring the remaining four items.
【０００４】まず、水圧測定の系統は、配管に設けられ
た第１のストップ弁１、圧力センサ２、排水弁３から構
成されており、排水弁３は通常閉であり、測定用の試料
水の消費はない。First, the water pressure measurement system is composed of a first stop valve 1 provided in a pipe, a pressure sensor 2 and a drain valve 3, and the drain valve 3 is normally closed. Is not consumed.
【０００５】また、もう一方の系統は、別の配管に設け
られた第２のストップ弁４、ストレーナ５、逆止弁６、
減圧弁７、水温センサ８、流量調整弁９、流量計１０、
導電率測定セルおよびセンサ１１、残留塩素測定セルお
よびセンサ１２、ｐＨ測定セルおよびセンサ１３から構
成されており、測定用の試料水を配管の入口から導水し
て、これらの水質監視に関わる各種測定セルおよびセン
サ１１，１２，１３で測定し、配管の出口から排水する
ようになっている。The other system includes a second stop valve 4, a strainer 5, a check valve 6, which are provided in another pipe.
Pressure reducing valve 7, water temperature sensor 8, flow rate adjusting valve 9, flow meter 10,
It is composed of a conductivity measuring cell and sensor 11, a residual chlorine measuring cell and sensor 12, a pH measuring cell and a sensor 13, and introduces sample water for measurement from an inlet of a pipe to make various measurements relating to these water quality monitoring. The measurement is performed by the cell and the sensors 11, 12, 13 and the water is discharged from the outlet of the pipe.
【０００６】次に、かかる水質自動監視装置において
は、残留塩素、ｐＨ、導電率、水温の測定を行なう場
合、その流量としては約１００ｃｃ／ｍｉｎが連続的に
通水される。Next, in such an automatic water quality monitor, when measuring residual chlorine, pH, conductivity, and water temperature, a flow rate of about 100 cc / min is continuously passed.
【０００７】また、自動弁３０は洗浄用の弁であり、通
常時である測定時は閉で、洗浄時に図４に示すように、
一定周期毎に一定時間開になる。そして、上記各種測定
セルおよびセンサ１１，１２，１３の洗浄を行なう場
合、そのラインの流量としては、流量調整弁がないため
測定時の流量よりも多い流量になる。この流量が、測定
流量に加算されて洗浄流量となり、導電率測定セルおよ
びセンサ１１、残留塩素測定セルおよびセンサ１２、ｐ
Ｈ測定セルおよびセンサ１３に流れて、これらの洗浄が
行なわれる。Further, the automatic valve 30 is a valve for cleaning, which is closed at the time of measurement which is a normal time, and as shown in FIG.
It opens for a certain period of time every certain period. When the various measuring cells and the sensors 11, 12 and 13 are washed, the flow rate of the line is higher than the flow rate at the time of measurement because there is no flow rate adjusting valve. This flow rate is added to the measured flow rate to become the cleaning flow rate, and the conductivity measurement cell and sensor 11, residual chlorine measurement cell and sensor 12, p
The H measuring cell and the sensor 13 are flown to wash them.
【０００８】この洗浄時には、洗浄周期を１時間、洗浄
時間を１分間、洗浄流量を５００ｃｃ／ｍｉｎとする
と、測定流量と洗浄流量を合わせて、１ケ月で約４．７
ｔの試料水（水道水）を使用することになる。In this cleaning, if the cleaning cycle is 1 hour, the cleaning time is 1 minute, and the cleaning flow rate is 500 cc / min, the measured flow rate and the cleaning flow rate are combined to be about 4.7 in one month.
t sample water (tap water) will be used.
【０００９】しかしながら、このような水質自動監視装
置では、次のような問題点がある。すなわち、まず第１
に、測定用の試料水が連続通水であるため、単位時間当
たりの流量は少ないが、１ケ月の積算流量では試料水の
使用量は非常に多くなる。However, such an automatic water quality monitor has the following problems. That is, first
In addition, since the sample water for measurement is continuous water flow, the flow rate per unit time is small, but the amount of sample water used is extremely large at the integrated flow rate for one month.
【００１０】また第２に、単位時間当りの流量が少ない
ため、試料水が各種測定セルおよびセンサ１１，１２，
１３を通過する流速が低く、各種測定セルおよびセンサ
１１，１２，１３に気泡の生成付着が発生し易い。そし
て、これら各種測定セルおよびセンサ１１，１２，１３
に気泡が生成付着すると、測定誤差の原因になり易く、
精度の高い測定を行なうことが困難となる。なお、この
気泡は、洗浄時に流す試料水の流量をアップしても、測
定時と同一方向の流れであるため、除去することができ
ない。Secondly, since the flow rate per unit time is small, sample water is used for various measuring cells and sensors 11, 12 ,.
The flow velocity passing through 13 is low, and bubbles are likely to be generated and adhered to various measuring cells and sensors 11, 12, and 13. Then, these various measuring cells and sensors 11, 12, 13
If air bubbles are generated and adhered to the
It becomes difficult to perform highly accurate measurement. It should be noted that these bubbles cannot be removed even if the flow rate of the sample water flowing at the time of cleaning is increased because they flow in the same direction as at the time of measurement.
【００１１】[0011]
【発明が解決しようとする課題】以上のように、従来の
水質自動監視装置においては、試料水の使用量が多く無
駄であるばかりでなく、各種測定セルおよびセンサに気
泡が生成付着して精度の高い測定を行なえないという問
題があった。As described above, in the conventional automatic water quality monitoring apparatus, not only is the amount of sample water used large and wasted, but also bubbles are generated and adhered to various measuring cells and sensors, and accuracy is improved. There was a problem that high measurement could not be performed.
【００１２】本発明の目的は、測定用の試料水の節水を
図りつつ連続測定を行なうことができ、また各種測定セ
ルおよびセンサに付着する気泡を除去して安定した高精
度の測定を行なうことが可能な水質自動監視装置を提供
することにある。An object of the present invention is to carry out continuous measurement while conserving water of sample water for measurement, and to perform stable and highly accurate measurement by removing bubbles adhering to various measuring cells and sensors. It is to provide an automatic water quality monitoring device capable of
【００１３】[0013]
【課題を解決するための手段】上記の目的を達成するた
めに、上水道末端の給水栓や団地・高層ビルの受水槽等
の水質測定を、測定用の試料水を配管の入口から導水し
て当該配管に設けられた水質監視に関わる各種測定セル
およびセンサで測定し配管の出口から排水することによ
り、連続的に自動的に行なう水質自動監視装置におい
て、まず、請求項１に係る発明では、各種測定セルおよ
びセンサで構成される水質自動監視装置本体の試料水入
口部に、あらかじめ定められた所定の時間間隔でパルス
状に間欠的に自動開閉する通水／停止自動弁を配設して
成る。[Means for Solving the Problems] In order to achieve the above object, the water quality of a water tap at the end of a water supply or a water tank of a housing complex or a high-rise building is measured by introducing a sample water for measurement from an inlet of a pipe. In an automatic water quality monitoring device that automatically performs continuously by measuring with various measuring cells and sensors related to water quality monitoring provided in the pipe and discharging from the outlet of the pipe, first, in the invention according to claim 1, At the sample water inlet of the main body of the automatic water quality monitoring device consisting of various measuring cells and sensors, a water flow / stop automatic valve that intermittently automatically opens and closes in a pulse at predetermined time intervals is installed. Become.
【００１４】また、請求項２に係る発明では、各種測定
セルおよびセンサで構成される水質自動監視装置本体の
配管の途中に、洗浄時に定期的に自動切換えして各種測
定セルおよびセンサに流れる試料水の流れ方向を測定時
と逆にする流れ方向自動切換弁を配設して成る。Further, in the invention according to claim 2, a sample flowing to the various measuring cells and the sensor is automatically switched at regular intervals during cleaning in the middle of the piping of the main body of the water quality automatic monitoring device composed of the various measuring cells and the sensors. An automatic flow direction switching valve that reverses the flow direction of water is arranged.
【００１５】さらに、請求項３に係る発明では、各種測
定セルおよびセンサで構成される水質自動監視装置本体
の試料水入口部に、あらかじめ定められた所定の時間間
隔でパルス状に間欠的に自動開閉する通水／停止自動弁
を配設すると共に、各種測定セルおよびセンサで構成さ
れる水質自動監視装置本体の配管の途中に、洗浄時に定
期的に自動切換えして各種測定セルおよびセンサに流れ
る試料水の流れ方向を測定時と逆にする流れ方向自動切
換弁を配設して成る。Further, in the invention according to claim 3, in the sample water inlet of the main body of the automatic water quality monitoring device composed of various measuring cells and sensors, the pulse water is automatically intermittently provided at a predetermined time interval. A water flow / stop automatic valve that opens and closes is installed, and it automatically flows to various measuring cells and sensors during cleaning while automatically switching in the middle of the piping of the main body of the automatic water quality monitoring device that is composed of various measuring cells and sensors. An automatic flow direction switching valve that reverses the flow direction of the sample water to that at the time of measurement is provided.
【００１６】[0016]
【作用】従って、まず、請求項１に係る発明の水質自動
監視装置においては、水質自動監視装置本体の試料水入
口部に、あらかじめ定められた所定の時間間隔でパルス
状に間欠的に自動開閉する通水／停止自動弁を配設する
ことにより、測定試料水を各種測定セルおよびセンサ
に、短い時間間隔でパルス状に間欠通水することが可能
となるため、従来のような連続測定の場合とほぼ同等の
測定を行ないつつ、測定用の試料水を節水することがで
きる。Therefore, first, in the automatic water quality monitoring apparatus of the invention according to claim 1, the sample water inlet of the main body of the automatic water quality monitoring apparatus is intermittently automatically opened and closed in a pulse shape at a predetermined time interval. By arranging the automatic water stop / stop valve, the sample water can be intermittently passed through various measuring cells and sensors in a pulsed manner at short time intervals. It is possible to save the sample water for measurement while performing the measurement almost equivalent to the case.
【００１７】また、請求項２に係る発明の水質自動監視
装置においては、水質自動監視装置本体の配管の途中
に、洗浄時に定期的に自動切換えして各種測定セルおよ
びセンサに流れる試料水の流れ方向を測定時と逆にする
流れ方向自動切換弁を配設することにより、測定用の試
料水を各種測定セルおよびセンサに、定期的に測定時と
は逆方向に流すことが可能となるため、洗浄効果をアッ
プさせて各種測定セルおよびセンサに付着する気泡を除
去して、極めて安定した高精度の測定を行なうことがで
きる。Further, in the water quality automatic monitoring device of the invention according to claim 2, the flow of sample water flowing to various measuring cells and sensors by automatically switching periodically during cleaning in the middle of the piping of the main body of the water quality monitoring device. By providing an automatic flow direction switching valve that reverses the direction of measurement, sample water for measurement can be periodically flowed to the various measurement cells and sensors in the opposite direction from the time of measurement. As a result, it is possible to improve the cleaning effect and remove air bubbles adhering to various measuring cells and sensors to perform extremely stable and highly accurate measurement.
【００１８】さらに、請求項３に係る発明の水質自動監
視装置においては、水質自動監視装置本体の試料水入口
部に、あらかじめ定められた所定の時間間隔でパルス状
に間欠的に自動開閉する通水／停止自動弁を配設するこ
とにより、測定試料水を各種測定セルおよびセンサに、
短い時間間隔でパルス状に間欠通水することが可能とな
るため、従来のような連続測定の場合とほぼ同等の測定
を行ないつつ、測定用の試料水を節水することができる
と共に、水質自動監視装置本体の配管の途中に、洗浄時
に定期的に自動切換えして各種測定セルおよびセンサに
流れる試料水の流れ方向を測定時と逆にする流れ方向自
動切換弁を配設することにより、測定用の試料水を各種
測定セルおよびセンサに、定期的に測定時とは逆方向に
流すことが可能となるため、洗浄効果をアップさせて各
種測定セルおよびセンサに付着する気泡を除去して、極
めて安定した高精度の測定を行なうことができる。Further, in the automatic water quality monitoring device of the invention according to claim 3, the sample water inlet portion of the main body of the automatic water quality monitoring device is provided with a pulsed automatic opening / closing mechanism at predetermined time intervals. By arranging the water / stop automatic valve, the measurement sample water can be supplied to various measurement cells and sensors.
Since it is possible to intermittently pass water in a pulse shape at short time intervals, it is possible to save sample water for measurement while performing almost the same measurement as in the case of continuous measurement as in the past, and to automatically measure the water quality. By arranging an automatic flow direction switching valve in the middle of the piping of the monitoring device, which automatically switches periodically during cleaning and makes the flow direction of sample water flowing to various measuring cells and sensors reverse to that at the time of measurement, Since it is possible to periodically flow the sample water for various measurement cells and sensors in the opposite direction from the time of measurement, improve the cleaning effect and remove bubbles adhering to various measurement cells and sensors, It is possible to perform extremely stable and highly accurate measurement.
【００１９】以上により、測定用の試料水の節水を図り
つつ連続測定を行なうことが可能となり、また各種測定
セルおよびセンサに付着する気泡を除去して安定した高
精度の測定を行なうことが可能となる。As described above, it is possible to carry out continuous measurement while conserving the sample water for measurement, and it is also possible to remove bubbles adhering to various measuring cells and sensors and perform stable and highly accurate measurement. Becomes
【００２０】[0020]
【実施例】以下、本発明の一実施例について図面を参照
して詳細に説明する。図１は、本発明による水質自動監
視装置の配管構成例を示す概要図であり、図３と同一部
分には同一符号を付してその説明を省略し、ここでは異
なる部分についてのみ述べる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic diagram showing a piping configuration example of an automatic water quality monitoring device according to the present invention. The same parts as those in FIG. 3 are designated by the same reference numerals and the description thereof will be omitted. Only different parts will be described here.
【００２１】すなわち、本実施例の水質自動監視装置
は、図１に示すように、図３における自動弁３０を省略
し、これに代えて、前記各種測定セルおよびセンサで構
成される水質自動監視装置本体の試料水入口部、すなわ
ち水温センサ８と流量調整弁９との間に、通水／停止自
動弁２０を配設すると共に、水質自動監視装置本体の配
管の途中、すなわち通水／停止自動弁２０と流量調整弁
９との間に、流れ方向自動切換弁２１を、またｐＨ測定
セルおよびセンサ１３からの出口側配管の途中に、第１
の自動排水弁２２をそれぞれ配設し、さらに流れ方向自
動切換弁２１の切換側を、ｐＨ測定セルおよびセンサ１
３と第１の自動排水弁２２との間の配管に連通されてい
る。That is, in the automatic water quality monitoring apparatus of this embodiment, as shown in FIG. 1, the automatic valve 30 in FIG. 3 is omitted, and instead of this, the automatic water quality monitoring is constituted by the various measuring cells and sensors. An automatic water passage / stop valve 20 is provided between the sample water inlet of the apparatus main body, that is, between the water temperature sensor 8 and the flow rate adjusting valve 9, and at the middle of the pipe of the automatic water quality monitoring apparatus main body, that is, water passage / stop. An automatic flow direction switching valve 21 is provided between the automatic valve 20 and the flow rate adjusting valve 9, and a first pipe is provided in the middle of an outlet side pipe from the pH measuring cell and the sensor 13.
Of the pH measuring cell and the sensor 1.
3 and the first automatic drainage valve 22 are connected to a pipe.
【００２２】さらに、前記流量計１０と導電率測定セル
およびセンサ１１との間と、第１の自動排水弁２２の出
口側配管との間を連通させる配管を設け、かつこの連通
配管に、第２の自動排水弁２３を配設している。Further, a pipe is provided for connecting the flowmeter 10 and the conductivity measuring cell and sensor 11 with the outlet side pipe of the first automatic drainage valve 22, and the communicating pipe is provided with a first pipe. Two automatic drain valves 23 are provided.
【００２３】ここで、通水／停止自動弁２０は、あらか
じめ定められた所定の時間間隔でパルス状に間欠的に自
動開閉するものである。また、流れ方向自動切換弁２１
は、洗浄時に、定期的に自動切換えして各種測定セルお
よびセンサに流れる試料水の流れ方向を測定時と逆にす
るものである。Here, the water passage / stop automatic valve 20 is automatically opened / closed intermittently in a pulse shape at predetermined time intervals. In addition, the automatic flow direction switching valve 21
In the above, during cleaning, the flow direction of the sample water flowing through the various measuring cells and sensors is automatically changed over automatically at the time of measurement.
【００２４】さらに、第１の自動排水弁２２は、測定時
に自動開、洗浄時に自動閉するものである。さらにま
た、第２の自動排水弁２３は、測定時に自動閉、洗浄時
に自動開するものである。Further, the first automatic drain valve 22 is automatically opened during measurement and automatically closed during cleaning. Furthermore, the second automatic drainage valve 23 is automatically closed during measurement and automatically opened during cleaning.
【００２５】次に、以上のように構成した本実施例の水
質自動監視装置の動作について、図２に示すタイムチャ
ート図を用いて説明する。図１において、本水質自動監
視装置は、その測定項目が、残留塩素、ｐＨ、導電率、
水温、水圧の５項目である。そして、配管導入の系統と
しては２系統あり、そのうち一系統は水圧測定のみの系
統であり、もう一つの系統は残りの４項目の測定を行な
う系統となっている。Next, the operation of the water quality automatic monitoring system of this embodiment constructed as described above will be explained with reference to the time chart shown in FIG. In FIG. 1, the automatic water quality monitoring device has the following measurement items: residual chlorine, pH, conductivity,
There are five items: water temperature and water pressure. There are two systems for introducing pipes, one of which is a system for measuring water pressure only, and the other is a system for measuring the remaining four items.
【００２６】まず、水圧の測定は、第１のストップ弁
１、圧力センサ２、排水弁３から構成される一方の系統
により行なわれる。この場合、排水弁３は通常閉であ
り、測定用の試料水の消費はない。First, the water pressure is measured by one system including the first stop valve 1, the pressure sensor 2 and the drain valve 3. In this case, the drain valve 3 is normally closed, and the sample water for measurement is not consumed.
【００２７】一方、残留塩素、ｐＨ、導電率、水温の測
定は、第１のストップ弁４、ストレーナ５、逆止弁６、
減圧弁７、水温センサ８、通水／停止自動弁２０、流れ
方向自動切換弁２１、流量調整弁９、流量計１０、導電
率測定セルおよびセンサ１１、残留塩素測定セルおよび
センサ１２、ｐＨ測定セルおよびセンサ１３、第１の自
動排水弁２２、第２の自動排水弁２３から構成されるも
う一方の系統により行なわれる。On the other hand, residual chlorine, pH, conductivity, and water temperature are measured by the first stop valve 4, strainer 5, check valve 6,
Pressure reducing valve 7, water temperature sensor 8, water passage / stop automatic valve 20, automatic flow direction switching valve 21, flow rate adjusting valve 9, flow meter 10, conductivity measuring cell and sensor 11, residual chlorine measuring cell and sensor 12, pH measurement. This is performed by the other system including the cell and sensor 13, the first automatic drainage valve 22, and the second automatic drainage valve 23.
【００２８】この場合、測定時には、流れ方向切換弁２
１は図示ａ方向に開となるように切換わり、第１の自動
排水弁２２は開状態、第２の自動排水弁２３は閉状態に
あり、さらに通水／停止自動弁２０は、あらかじめ定め
られた所定の時間間隔、例えば数分から数１０分間隔
（試料水の停止時間は、試料水停止の状態でセンサに悪
影響がなく、次の測定開始時の立ち上がり応答に影響し
ない時間）の短い時間間隔で、自動開閉して通水／停止
を繰り返すことにより、パルス状に各種測定セルおよび
センサに試料水が流される。なお、通水時の流量は約１
００ｃｃ／ｍｉｎで、前述した従来の場合と同じであ
る。In this case, at the time of measurement, the flow direction switching valve 2
1 is switched to open in the direction a in the figure, the first automatic drain valve 22 is in the open state, the second automatic drain valve 23 is in the closed state, and the water passage / stop automatic valve 20 is predetermined. A short predetermined time interval, for example, an interval of several minutes to several tens of minutes (the stop time of the sample water is the time when the sample water is stopped, does not adversely affect the sensor and does not affect the rising response at the start of the next measurement) By automatically opening and closing at regular intervals and repeating water flow / stop, the sample water is flowed to various measuring cells and sensors in a pulsed manner. The flow rate during water flow is approximately 1
The value is 00 cc / min, which is the same as the conventional case described above.
【００２９】また、洗浄時には、流れ方向切換弁２１は
図示ｂ方向に開となるように切換わり、第１の自動排水
弁２２は閉状態、第２の自動排水弁２３は開状態にな
り、さらに通水／停止自動弁２０は、あらかじめ定めら
れた所定の時間間隔、例えば数分から数１０分間隔（試
料水の停止時間は、試料水停止の状態でセンサに悪影響
がなく、次の測定開始時の立ち上がり応答に影響しない
時間）の短い時間間隔で、自動開閉して通水／停止を繰
り返すことにより、パルス状に各種測定セルおよびセン
サに試料水が流される。During cleaning, the flow direction switching valve 21 is switched to open in the direction of b in the figure, the first automatic drain valve 22 is closed and the second automatic drain valve 23 is open. Further, the water flow / stop automatic valve 20 is set at a predetermined time interval, for example, from several minutes to several tens of minutes (the sample water stop time does not adversely affect the sensor when the sample water is stopped and the next measurement is started. The sample water is made to flow through the various measuring cells and sensors in a pulsed manner by automatically opening and closing and repeating water passing / stopping at short time intervals (a time that does not affect the rise response of time).
【００３０】この場合、洗浄時には、流路に流量調整弁
がないため、測定時の場合の流量よりも多い流量にな
る。また、各種測定セルおよびセンサへの試料水の流れ
は、ｐＨ測定セルおよびセンサ１３、残留塩素測定セル
およびセンサ１２、導電率測定セルおよびセンサ１１と
なって、上記測定時の場合とは逆の方向に試料水が流さ
れ、洗浄終了後の試料水は第２の自動排水弁２３から排
水される。In this case, at the time of cleaning, the flow rate is higher than that at the time of measurement because there is no flow rate adjusting valve in the flow path. Further, the flow of the sample water to the various measuring cells and sensors becomes the pH measuring cell and sensor 13, the residual chlorine measuring cell and sensor 12, the conductivity measuring cell and sensor 11, which is the reverse of the above measurement. The sample water is caused to flow in the direction, and the sample water after the cleaning is drained from the second automatic drain valve 23.
【００３１】これにより、洗浄効果をアップさせて、各
種測定セルおよびセンサに付着する気泡を除去すること
ができる。なお、この洗浄時における洗浄周期は、測定
回数のカウント値から、水質、あるいは気泡の量に基づ
いて決められる。As a result, the cleaning effect can be improved, and bubbles adhering to various measuring cells and sensors can be removed. The cleaning cycle at the time of cleaning is determined based on the water quality or the amount of bubbles from the count value of the number of measurements.
【００３２】また、流量１００ｃｃ／ｍｉｎの試料水の
通水時間／停止時間の比を１／３、洗浄周期を１時間、
洗浄時間を１分間、洗浄流量を５００ｃｃ／ｍｉｎとす
ると、測定流量と洗浄流量と合わせて、１ケ月で約１．
８ｔの水道水を使用するのみで済む。Further, the ratio of the passage time / stop time of the sample water having a flow rate of 100 cc / min is 1/3, the cleaning cycle is 1 hour,
Assuming that the cleaning time is 1 minute and the cleaning flow rate is 500 cc / min, the measured flow rate and the cleaning flow rate together are about 1.
All you need to do is use 8t of tap water.
【００３３】これにより、従来のような連続測定の場合
とほぼ同等の測定を行ないながら、測定用の試料水を節
水することができる。上述したように、本実施例では、
上水道末端の給水栓や団地・高層ビルの受水槽等の水質
測定を、測定用の試料水を配管の入口から導水して当該
配管に設けられた水質監視に関わる各種測定セルおよび
センサ１１，１２，１３で測定し配管の出口から排水す
ることにより、連続的に自動的に行なう水質自動監視装
置において、各種測定セルおよびセンサ１１，１２，１
３で構成される水質自動監視装置本体の試料水入口部
（水温センサ８と流量調整弁９との間）に、あらかじめ
定められた所定の時間間隔でパルス状に間欠的に自動開
閉する通水／停止自動弁２０を配設すると共に、各種測
定セルおよびセンサ１１，１２，１３で構成される水質
自動監視装置本体の配管の途中（通水／停止自動弁２０
と流量調整弁９との間）に、洗浄時に定期的に自動切換
えして各種測定セルおよびセンサ１１，１２，１３に流
れる試料水の流れ方向を逆にする流れ方向自動切換弁２
１を配設するようにしたものである。As a result, it is possible to save the sample water for measurement while performing the same measurement as in the conventional continuous measurement. As described above, in this embodiment,
Various measurement cells and sensors 11 and 12 related to water quality monitoring installed in the pipe by introducing sample water for measurement from the inlet of the pipe to measure the water quality of the water tap at the end of the water supply and the water tank of the housing complex or high-rise building. , 13, and draining from the outlet of the pipe, in a continuous automatic water quality monitoring device, various measuring cells and sensors 11, 12, 1
Water that is automatically opened and closed in a pulsed manner at the sample water inlet (between the water temperature sensor 8 and the flow rate adjusting valve 9) of the main body of the automatic water quality monitoring device composed of 3 at a predetermined time interval. / Automatic stop valve 20 is installed, and in the middle of the piping of the main body of the automatic water quality monitoring device, which is composed of various measuring cells and sensors 11, 12, 13 (automatic water flow / stop valve 20
And the flow rate adjusting valve 9) between the various measuring cells and the sensors 11, 12 and 13 so as to reverse the flow direction of the sample water which is automatically switched at the time of cleaning.
1 is arranged.
【００３４】従って、あらかじめ定められた所定の時間
間隔でパルス状に間欠的に自動開閉する通水／停止自動
弁２０を配設していることにより、測定試料水を各種測
定セルおよびセンサ１１，１２，１３に、短い時間間隔
でパルス状に間欠通水することができる、すなわち通水
／停止の間隔が短く、各種測定セルおよびセンサ１１，
１２，１３に悪影響を与えない間欠通水とすることがで
きるため、従来のような連続測定の場合とほぼ同等の測
定を行ないつつ、測定用の試料水を節水することが可能
となる。Therefore, by disposing the water passage / stopping automatic valve 20 which automatically opens and closes intermittently in a pulsed manner at predetermined time intervals, various sample cells and sensors 11, It is possible to intermittently pass water to 12, 13 at short time intervals, that is, the water passing / stopping interval is short, and various measuring cells and sensors 11,
Since it is possible to make the intermittent water flow that does not adversely affect 12 and 13, it is possible to save the sample water for measurement while performing almost the same measurement as in the conventional continuous measurement.
【００３５】換言すれば、従来の間欠測定のように停止
時間が長いと、通水開始時に配管中の汚れが流出して、
正常な水質測定値になるまで時間を必要とするため、無
駄に試料水を使用することになる。In other words, if the stop time is long as in the conventional intermittent measurement, the dirt in the pipes will flow out at the start of water flow,
Since it takes time to obtain a normal water quality measurement value, the sample water is wasted.
【００３６】これに対して、本実施例では、短い時間間
隔でのパルス状の通水／停止のショックを試料水配管内
に常に与えているため、水垢等の汚れの付着が少なく、
通水時に汚れの流出がないため、短時間で正常な水質測
定値が測定でき、無駄に試料水を使用することがない。On the other hand, in the present embodiment, since a pulsed water flow / stop shock at a short time interval is constantly applied to the sample water pipe, adhesion of stains such as scales is small.
Since there is no outflow of dirt when passing water, it is possible to measure normal water quality measurement values in a short time, and never waste sample water.
【００３７】また、洗浄時に定期的に自動切換えして各
種測定セルおよびセンサ１１，１２，１３に流れる試料
水の流れ方向を逆にする流れ方向自動切換弁２１を配設
していることにより、測定用の試料水を各種測定セルお
よびセンサ１１，１２，１３に、定期的に測定時とは逆
方向に流すことができるため、洗浄効果をアップさせて
各種測定セルおよびセンサ１１，１２，１３に付着する
気泡を除去して、極めて安定した高精度の測定を行なう
ことが可能となる。Further, since the automatic flow direction switching valve 21 for arranging the flow direction of the sample water flowing through the various measuring cells and the sensors 11, 12, 13 in the opposite direction by arranging automatically during cleaning is disposed, Since the sample water for measurement can be periodically flown through the various measuring cells and sensors 11, 12, 13 in the direction opposite to that at the time of measurement, the cleaning effect is improved and the various measuring cells, sensors 11, 12, 13 are increased. It becomes possible to remove bubbles adhering to and to perform extremely stable and highly accurate measurement.
【００３８】以上により、測定用の試料水の節水を図り
つつ連続測定を行なえる共に、各種測定セルおよびセン
サに付着する気泡を除去して安定した高精度の測定を行
なうことができる。As described above, continuous measurement can be performed while conserving water of the sample water for measurement, and bubbles adhering to various measuring cells and sensors can be removed to perform stable and highly accurate measurement.
【００３９】尚、本発明は上記実施例に限定されるもの
ではなく、次のようにしても同様に実施できるものであ
る。 （ａ）上記実施例では、あらかじめ定められた所定の時
間間隔でパルス状に間欠的に自動開閉する通水／停止自
動弁２０と、洗浄時に定期的に自動切換えして各種測定
セルおよびセンサ１１，１２，１３に流れる試料水の流
れ方向を測定時と逆にする流れ方向自動切換弁２１との
両方を配設する場合について説明したが、これに限ら
ず、あらかじめ定められた所定の時間間隔でパルス状に
間欠的に自動開閉する通水／停止自動弁２０、または洗
浄時に定期的に自動切換えして各種測定セルおよびセン
サ１１，１２，１３に流れる試料水の流れ方向を逆にす
る流れ方向自動切換弁２１のうちのいずれか一方のみを
配設するようにしてもよいものである。The present invention is not limited to the above embodiment, but can be implemented in the same manner as described below. (A) In the above embodiment, the water passage / stop automatic valve 20 that automatically opens and closes intermittently in a pulse at predetermined time intervals, and the various measurement cells and sensors 11 that are automatically switched periodically during cleaning. , 12 and 13 are provided with both the automatic flow direction switching valve 21 for making the flow direction of the sample water reverse to that at the time of measurement, the present invention is not limited to this, and it is not limited to this. Water flow / stop automatic valve 20 that automatically opens and closes intermittently in a pulsed manner, or a flow that reverses the flow direction of sample water flowing to various measuring cells and sensors 11, 12, and 13 by periodically switching automatically during cleaning. Only one of the automatic direction switching valves 21 may be provided.
【００４０】（ｂ）上記実施例では、水圧の測定系統を
併せて備えた水質自動監視装置に本発明を適用した場合
について説明したが、かかる水圧の測定系統を備えてい
ない水質自動監視装置の場合についても、本発明を同様
に適用して前述の場合と同様の作用効果を得ることが可
能である。(B) In the above-mentioned embodiment, the case where the present invention is applied to the water quality automatic monitoring device also provided with the water pressure measuring system has been described. However, in the water quality automatic monitoring device having no such water pressure measuring system. In this case as well, it is possible to apply the present invention in the same manner and obtain the same effects as the above-mentioned case.
【００４１】[0041]
【発明の効果】以上説明したように本発明によれば、上
水道末端の給水栓や団地・高層ビルの受水槽等の水質測
定を、測定用の試料水を配管の入口から導水して当該配
管に設けられた水質監視に関わる各種測定セルおよびセ
ンサで測定し配管の出口から排水することにより、連続
的に自動的に行なう水質自動監視装置において、各種測
定セルおよびセンサで構成される水質自動監視装置本体
の試料水入口部に配設され、あらかじめ定められた所定
の時間間隔でパルス状に間欠的に自動開閉する通水／停
止自動弁、およびまたは各種測定セルおよびセンサで構
成される水質自動監視装置本体の配管の途中に配設さ
れ、洗浄時に定期的に自動切換えして各種測定セルおよ
びセンサに流れる試料水の流れ方向を測定時と逆にする
流れ方向自動切換弁を備えるようにしたので、測定用の
試料水の節水を図りつつ連続測定を行なうことができ、
また各種測定セルおよびセンサに付着する気泡を除去し
て安定した高精度の測定を行なうことが可能な水質自動
監視装置が提供できる。As described above, according to the present invention, the water quality of a water tap at the end of a water supply or a water tank of a housing complex or a high-rise building is measured by introducing sample water for measurement from the inlet of the pipe. In the automatic water quality monitoring device that continuously and automatically measures the water quality by using various measuring cells and sensors related to water quality monitoring provided in the An automatic water quality stop valve that is installed at the sample water inlet of the device and automatically opens and closes in a pulsed fashion at predetermined time intervals, and / or an automatic water quality control system that includes various measuring cells and sensors. A flow direction automatic switching valve that is installed in the middle of the piping of the monitoring device and automatically switches periodically during cleaning to change the flow direction of sample water flowing to various measuring cells and sensors from the direction of measurement. Since so provided, it is possible to perform continuous measurement while achieving water conservation of sample water for measurement,
Further, it is possible to provide an automatic water quality monitoring device capable of performing stable and highly accurate measurement by removing bubbles adhering to various measuring cells and sensors.
【図１】本発明による水質自動監視装置の一実施例を示
す概要図。FIG. 1 is a schematic view showing an embodiment of an automatic water quality monitoring device according to the present invention.
【図２】同実施例の水質自動監視装置における動作の一
例を説明するためのタイムチャート図。FIG. 2 is a time chart diagram for explaining an example of the operation of the water quality automatic monitoring device according to the embodiment.
【図３】従来の水質自動監視装置の配管構成例を示す概
要図。FIG. 3 is a schematic diagram showing a piping configuration example of a conventional water quality automatic monitoring device.
【図４】従来の水質自動監視装置における動作の一例を
説明するためのタイムチャート図。FIG. 4 is a time chart diagram for explaining an example of an operation in a conventional water quality automatic monitoring device.
１…第１のストップ弁、２…圧力センサ、３…排水弁、
４…第２のストップ弁、５…ストレーナ、６…逆止弁、
７…減圧弁、８…水温センサ、９…流量調整弁、１０…
流量計、１１…導電率測定セルおよびセンサ、１２…残
留塩素測定セルおよびセンサ、１３…ｐＨ測定セルおよ
びセンサ、２０…通水／停止自動弁、２１…流れ方向自
動切換弁、２２…第１の自動排水弁、２３…第２の自動
排水弁。1 ... First stop valve, 2 ... Pressure sensor, 3 ... Drain valve,
4 ... second stop valve, 5 ... strainer, 6 ... check valve,
7 ... Pressure reducing valve, 8 ... Water temperature sensor, 9 ... Flow rate adjusting valve, 10 ...
Flowmeter, 11 ... Conductivity measuring cell and sensor, 12 ... Residual chlorine measuring cell and sensor, 13 ... pH measuring cell and sensor, 20 ... Water passing / stop automatic valve, 21 ... Flow direction automatic switching valve, 22 ... First Automatic drain valve of 23, the second automatic drain valve.
Claims (3)
受水槽等の水質測定を、測定用の試料水を配管の入口か
ら導水して当該配管に設けられた水質監視に関わる各種
測定セルおよびセンサで測定し前記配管の出口から排水
することにより、連続的に自動的に行なう水質自動監視
装置において、 前記各種測定セルおよびセンサで構成される水質自動監
視装置本体の試料水入口部に、あらかじめ定められた所
定の時間間隔でパルス状に間欠的に自動開閉する通水／
停止自動弁を配設して成ることを特徴とする水質自動監
視装置。1. Various measurement cells for water quality measurement, such as water taps at the ends of waterworks and water tanks for housing estates and high-rise buildings, in which the sample water for measurement is introduced from the inlet of the pipe to monitor the water quality. By measuring with a sensor and draining from the outlet of the pipe, in a water quality automatic monitoring device that continuously and automatically, in the sample water inlet part of the water quality automatic monitoring device body composed of the various measuring cells and sensors, Water flow that automatically opens and closes intermittently in a pulse at predetermined time intervals /
An automatic water quality monitoring device comprising an automatic stop valve.
受水槽等の水質測定を、測定用の試料水を配管の入口か
ら導水して当該配管に設けられた水質監視に関わる各種
測定セルおよびセンサで測定し前記配管の出口から排水
することにより、連続的に自動的に行なう水質自動監視
装置において、 前記各種測定セルおよびセンサで構成される水質自動監
視装置本体の配管の途中に、洗浄時に定期的に自動切換
えして前記各種測定セルおよびセンサに流れる試料水の
流れ方向を測定時と逆にする流れ方向自動切換弁を配設
して成ることを特徴とする水質自動監視装置。2. Various measurement cells for water quality monitoring, such as water taps at the end of waterworks and water tanks for housing estates and high-rise buildings, in which sample water for measurement is introduced from the inlet of the pipe to monitor the water quality. And in the automatic water quality monitoring device that automatically performs continuously by measuring with a sensor and draining from the outlet of the pipe, in the middle of the pipe of the water quality automatic monitoring device body composed of the various measurement cells and sensors, An automatic water quality monitoring device, characterized in that an automatic flow direction switching valve is arranged to switch the flow direction of sample water flowing through the various measuring cells and sensors at regular intervals to reverse the flow direction of the measuring water.
受水槽等の水質測定を、測定用の試料水を配管の入口か
ら導水して当該配管に設けられた水質監視に関わる各種
測定セルおよびセンサで測定し前記配管の出口から排水
することにより、連続的に自動的に行なう水質自動監視
装置において、 前記各種測定セルおよびセンサで構成される水質自動監
視装置本体の試料水入口部に、あらかじめ定められた所
定の時間間隔でパルス状に間欠的に自動開閉する通水／
停止自動弁を配設すると共に、 前記各種測定セルおよびセンサで構成される水質自動監
視装置本体の配管の途中に、洗浄時に定期的に自動切換
えして前記各種測定セルおよびセンサに流れる試料水の
流れ方向を測定時と逆にする流れ方向自動切換弁を配設
して成ることを特徴とする水質自動監視装置。3. Various measurement cells for water quality monitoring, such as water taps at the ends of water supply systems and water tanks of housing complexes and high-rise buildings, which are provided by introducing sample water for measurement from the inlet of the pipe. By measuring with a sensor and draining from the outlet of the pipe, in a water quality automatic monitoring device that continuously and automatically, in the sample water inlet part of the water quality automatic monitoring device body composed of the various measuring cells and sensors, Water flow that automatically opens and closes intermittently in a pulse at predetermined time intervals /
Along with a stop automatic valve, in the middle of the piping of the water quality automatic monitoring device body composed of the various measurement cells and sensors, the sample water flowing to the various measurement cells and sensors is automatically switched periodically during cleaning. An automatic water quality monitoring device comprising an automatic flow direction switching valve that reverses the flow direction from that at the time of measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8456594A JPH07294510A (en) | 1994-04-22 | 1994-04-22 | Automatic water quality monitor apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8456594A JPH07294510A (en) | 1994-04-22 | 1994-04-22 | Automatic water quality monitor apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07294510A true JPH07294510A (en) | 1995-11-10 |
Family
ID=13834187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8456594A Pending JPH07294510A (en) | 1994-04-22 | 1994-04-22 | Automatic water quality monitor apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07294510A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7150284B2 (en) * | 2000-12-15 | 2006-12-19 | Johnsondiversey, Inc. | Device for monitoring a wash process |
| JP2008008752A (en) * | 2006-06-29 | 2008-01-17 | Fuji Electric Systems Co Ltd | Abnormality detection method for water quality |
| JP2010513928A (en) * | 2006-12-22 | 2010-04-30 | アボット・ラボラトリーズ | Liquid waste management system |
-
1994
- 1994-04-22 JP JP8456594A patent/JPH07294510A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7150284B2 (en) * | 2000-12-15 | 2006-12-19 | Johnsondiversey, Inc. | Device for monitoring a wash process |
| US7322370B2 (en) | 2000-12-15 | 2008-01-29 | Johnsondiversey, Inc. | Device for monitoring a wash process |
| JP2008008752A (en) * | 2006-06-29 | 2008-01-17 | Fuji Electric Systems Co Ltd | Abnormality detection method for water quality |
| JP2010513928A (en) * | 2006-12-22 | 2010-04-30 | アボット・ラボラトリーズ | Liquid waste management system |
| US8449839B2 (en) | 2006-12-22 | 2013-05-28 | Abbott Laboratories | Liquid waste management system |
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