JPH0650309B2 - Water sampling device for automatic water quality analyzer - Google Patents
Water sampling device for automatic water quality analyzerInfo
- Publication number
- JPH0650309B2 JPH0650309B2 JP28913386A JP28913386A JPH0650309B2 JP H0650309 B2 JPH0650309 B2 JP H0650309B2 JP 28913386 A JP28913386 A JP 28913386A JP 28913386 A JP28913386 A JP 28913386A JP H0650309 B2 JPH0650309 B2 JP H0650309B2
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- Prior art keywords
- water
- test water
- screen
- automatic
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は一定の時間間隔で水質を自動的に測定する水
質移動分析計の検水採水装置に係り、特に夾雑物を含む
検水の採水装置に関する。Description: TECHNICAL FIELD The present invention relates to a water sampling device of a water quality movement analyzer for automatically measuring water quality at regular time intervals, and particularly to a water sampling device containing contaminants. Regarding water sampling device.
河川，湖沼あるいは閉鎖性水域等における水質汚濁の進
行に伴い水質を連続的に監視する水質自動分析計の整
備，拡充が望まれている。この水質移動分析計には検水
を分析計に供給するための採水装置が必要である。従
来、この種の水質自動分析計の採水装置として、水質自
動分析計と検水溜との間に、スクリーンフィルタを備え
た調整槽を備えたものが知られている（水質総量規制の
測定実務ハンドブック第２０頁図２．２参照）。With the progress of water pollution in rivers, lakes and marshes or closed water areas, it is desired to develop and expand an automatic water quality analyzer that continuously monitors water quality. This water quality movement analyzer requires a water sampling device for supplying test water to the analyzer. Conventionally, as a water sampling device of this type of automatic water quality analyzer, there is known one having an adjusting tank equipped with a screen filter between the automatic water quality analyzer and the test reservoir (measurement practice of total water quality regulation). (See Figure 2.2 on page 20, Handbook).
〔発明が解決しようとする問題点〕 前記従来装置においては、調整槽オーバーフロー管が調
整槽の上流側の室に設けられており、検水に夾雑物を含
む場合にスクリーンフィルタが目づまりする基本的な問
題があった。この目づまりの原因は２つある。まず第１
の原因は、検水中の夾雑物がスクリーンフィルタによっ
て阻止されるためスクリーンの上流側に次第に蓄積しや
がて閉塞に至る。第２の原因はスクリーンの表面上に付
着し増殖する微生物である。これはスクリーンの上流
側，下流側のいずれにも付着し、増殖してやがてスクリ
ーンの閉塞に至る。この微生物に起因する閉塞は、活性
汚泥の微細フロックや藻類を含む下水二次処理水が検水
である場合に特に著しい。[Problems to be Solved by the Invention] In the conventional device, the adjustment tank overflow pipe is provided in the chamber on the upstream side of the adjustment tank, and the screen filter is basically clogged when the test water contains impurities. There was a problem. There are two causes for this clogging. First of all
The cause is that impurities in the test water are blocked by the screen filter and gradually accumulate on the upstream side of the screen, eventually leading to blockage. The second cause is microorganisms that attach and grow on the surface of the screen. This adheres to both the upstream side and the downstream side of the screen, proliferates, and eventually leads to blockage of the screen. The clogging caused by the microorganisms is particularly remarkable when the secondary treated water containing sewage containing fine flocs of activated sludge and algae is the test water.
この発明は上述の点に鑑みてなされたものであり、その
目的とするところは水質自動分析計への検水供給が終っ
たときに検水をスクリーン部において逆流させながら排
出することができるようにして採水装置のスクリーンの
閉塞を防止するにある。The present invention has been made in view of the above points, and an object thereof is to allow the test water to be discharged while backflowing in the screen portion when the test water supply to the automatic water quality analyzer is completed. The purpose is to prevent the screen of the water sampling device from being blocked.
上記問題点を解決するためにこの発明によれば、 （イ）検水中の夾雑物を除去するためのスクリーンと、
該スクリーンで分離され互いに水平な位置関係に在る調
整槽内の上流側の室と下流側の室と、最上流側の室に設
けられた検水採水管と、最上流側の室の最下部に設けら
れた検水排出管と、最下流側の室に設けられた水質自動
分析計への検水供給管と、前記分離された室のいずれか
の室に設けられた検水オーバーフロー管とからなる調整
槽と、 （ロ）前記調整槽の検水排出管に接続され検水を前記ス
クリーン部で逆流させて排出するための自動弁と、 （ハ）前記水質自動分析計に検水が供給された後に、前
記自動弁を開として前記調整槽内の検水を排出完了後、
前記自動弁を閉とするコントローラと、を備えるものと
する。According to the present invention in order to solve the above problems, (a) a screen for removing contaminants in the test water,
The upstream chamber and the downstream chamber in the adjustment tank, which are separated by the screen and are in a horizontal positional relationship with each other, the test water sampling pipe provided in the most upstream chamber, and the most upstream chamber. Test water discharge pipe provided in the lower part, test water supply pipe to the water quality automatic analyzer provided in the most downstream chamber, and test water overflow pipe provided in any one of the separated chambers And (b) an automatic valve connected to the sample water discharge pipe of the adjusting tank for discharging the sample water by causing the sample water to flow backward through the screen portion, and (c) the sample water for the automatic water quality analyzer. , Is supplied, after the automatic valve is opened and the test water in the adjusting tank is completely discharged,
And a controller that closes the automatic valve.
検水は調整槽４の検水採水管７より流入してスクリーン
６を通る。検水中の夾雑物はスクリーン６で除去され
る。スクリーン６を通って夾雑物のなくなった検水は検
水供給管10を経て水質自動分析計５に供給される。水質
自動分析計へ検水が供給されたところで自動弁22が開か
れ、調整槽４のなかの検水が排出される。このとき検水
の流れは、検水排出管８がスクリーン６の上流側にある
ため検水の流れが、水質自動分析計への検水供給時と逆
方向になる。調整槽内の検水は排出される結果次の測定
時まで空の状態になる。The test water flows in from the test water sampling pipe 7 of the adjusting tank 4 and passes through the screen 6. Contaminants in the test water are removed by the screen 6. The sample water from which impurities have been removed through the screen 6 is supplied to the automatic water quality analyzer 5 through the sample water supply pipe 10. When the test water is supplied to the automatic water quality analyzer, the automatic valve 22 is opened and the test water in the adjusting tank 4 is discharged. At this time, the flow of the test water is opposite to that at the time of supplying the test water to the automatic water quality analyzer, because the test water discharge pipe 8 is on the upstream side of the screen 6. As a result of discharging the test water in the adjustment tank, it will be empty until the next measurement.
次にこの発明の実施例を図面にもとずいて説明する。第
１図はこの発明の実施例に係る採水装置の構成を示す。
第１図において１は採水ポンプ，２は検水溜，３はスト
レーナ，４は調整槽，4Aと4Bは調整槽内の室，５は水質
自動分析計，６はスクリーン，７は検出採水管，８は検
出排出管，９は検水オーバフロー管、10は検水供給管，
21はコントローラ，22は自動弁としての汚泥用の電磁ド
レンバルブである。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of a water sampling device according to an embodiment of the present invention.
In FIG. 1, 1 is a water sampling pump, 2 is a water sampling reservoir, 3 is a strainer, 4 is an adjusting tank, 4A and 4B are chambers inside the adjusting tank, 5 is an automatic water quality analyzer, 6 is a screen, and 7 is a detection water sampling pipe. , 8 is a detection discharge pipe, 9 is a test water overflow pipe, 10 is a test water supply pipe,
21 is a controller and 22 is an electromagnetic drain valve for sludge as an automatic valve.
調整槽４は内容積約８の塩ビ製である。スクリーン６
は10メッシュのステンレス製金網である。The adjusting tank 4 is made of PVC and has an internal volume of about 8. Screen 6
Is a 10 mesh stainless steel wire mesh.
このような検水採水装置は次に述べるような動作を行
い、スクリーン６の閉塞を防止することができる。Such a test water sampling apparatus can perform the following operations to prevent the screen 6 from being blocked.
まず検水は検水溜２からストレーナ３で粗大な夾雑物が
除去された後に採水ポンプ１によって調整槽４に採取さ
れる。調整槽４では検水オーバフロー管９によって水位
が一定に保たれている。First, the test water is collected in the adjusting tank 4 by the water sampling pump 1 after coarse impurities are removed from the test water reservoir 2 by the strainer 3. In the adjusting tank 4, the water level is kept constant by the test water overflow pipe 9.
水質自動分析計５では一定時間毎に検水の供給を受けて
水質分析を行なうが、水質分析を開始する直前にコント
ローラ21に制御信号5aを送る。コントローラ21ではこれ
を受けて制御信号1aを出し採水ポンプ１を稼動させ、検
水溜２からストレーナ３を通して検水を調整槽４に供給
する。検水は調整槽４の内部に設けられたスクリーン６
によって夾雑物が除去され、調整槽４の4B側の室は夾雑
物のない検水で満たされる。この夾雑物のない検水が検
水供給管10から水質自動分析計５に供給されて水質分析
が行なわれる。水質自動分析計５への検水の供給は、水
質自動分析計５内蔵のポンプで吸引してもよいし、ある
いは自然流下による方式でもよい。The automatic water quality analyzer 5 receives the supply of the sampled water at regular intervals to analyze the water quality, and sends the control signal 5a to the controller 21 immediately before starting the water quality analysis. In response to this, the controller 21 outputs a control signal 1a to operate the water sampling pump 1, and supplies the test water from the test water reservoir 2 through the strainer 3 to the adjusting tank 4. The test water is a screen 6 provided inside the adjusting tank 4.
The contaminants are removed by the above, and the chamber on the 4B side of the adjusting tank 4 is filled with the contaminant-free test water. This contaminant-free test water is supplied from the test water supply pipe 10 to the automatic water quality analyzer 5 for water quality analysis. The supply of the test water to the automatic water quality analyzer 5 may be performed by suction using a pump built in the automatic water quality analyzer 5 or by a method of spontaneous flow.
このようにして夾雑物のない検水を水質自動分析計５に
供給したら、次にコントローラ21から制御信号1aを出し
採水ポンプ１を停止させ、さらに制御信号 22aを出して
電磁ドレンバルブ22を開にして調整槽４内に残留してい
る検水を検水排出管８から排出する。このとき検水と同
時にスクリーン６によって捕捉された夾雑物とスクリー
ン６の表面に付着した微生物が調整槽４の外に排出され
る。詳述すると，採水ポンプ１が稼動しているときには
検水は調整槽４内では調整槽内の室4Aから4Bの方向（図
中では実線の矢印の方向）に流れ、検水に含まれている
夾雑物は、スクリーン６の上流側（4A側）で阻止されて
いる。次に電磁ドレンバルブ22を開にすると、調整槽４
内に残留していた検水の流れは調整槽内の室4Bから4Aの
方向（図中では点線の矢印）になり検水排出管８から排
出される。従ってスクリーン６はちょうど逆流洗浄を受
けた形となり、スクリーン６の4A側に阻止されていた夾
雑物は検水とともに検水排出管８から調整槽４の外部に
排出される。After supplying the water quality automatic analyzer 5 with the contaminant-free water in this manner, the controller 21 then outputs the control signal 1a to stop the water sampling pump 1 and further outputs the control signal 22a to turn on the electromagnetic drain valve 22. When opened, the test water remaining in the adjusting tank 4 is discharged from the test water discharge pipe 8. At this time, the contaminants captured by the screen 6 and the microorganisms attached to the surface of the screen 6 are discharged to the outside of the adjusting tank 4 at the same time as the test water. More specifically, when the water sampling pump 1 is operating, the test water flows in the adjusting tank 4 in the directions from the chambers 4A to 4B in the adjusting tank (the direction of the solid arrow in the figure) and is included in the water sampling. The foreign matter that has been trapped is blocked on the upstream side (4A side) of the screen 6. Next, when the electromagnetic drain valve 22 is opened, the adjustment tank 4
The flow of the test water remaining inside is in the direction from the chambers 4B to 4A in the adjusting tank (indicated by the dotted arrow in the figure) and is discharged from the test water discharge pipe 8. Therefore, the screen 6 has just been subjected to backwashing, and the contaminants blocked on the 4A side of the screen 6 are discharged from the adjusting water discharge pipe 8 to the outside of the adjusting tank 4 together with the measuring water.
またスクリーン６の表面に付着した微生物はもともとそ
の付着力はそれ程強固ではない。このため調整槽４内に
残留した検水を排出する際に水位が低下していくが、ス
クリーン６の表面に付着した微生物は自重によりスクリ
ーン６から剥離して検水とともに調整槽４の外に排出さ
れる。Also, the microorganisms attached to the surface of the screen 6 are not so strong in adhesiveness. For this reason, when the test water remaining in the adjusting tank 4 is discharged, the water level is lowered, but the microorganisms adhering to the surface of the screen 6 are separated from the screen 6 by their own weight and are removed from the adjusting tank 4 with the test water. Is discharged.
調整槽４からの検水の排出が完了したらコントローラ21
から制御信号 22aを送り電磁ドレンバルブ22を閉にして
調整槽４内を空の状態にしたまま次の採水まで待機す
る。When the discharge of the test water from the adjusting tank 4 is completed, the controller 21
Control signal 22a from the electromagnetic drain valve 22 is closed to leave the adjustment tank 4 empty and stand by until the next water sampling.
以上述べたようにして、水質自動分析計５への夾雑物の
ない検水の供給、スクリーン６の逆流洗浄および微生物
の剥離が行なわれる。As described above, contaminant-free test water supply to the automatic water quality analyzer 5, backwashing of the screen 6 and removal of microorganisms are performed.
上記の実施例ではスクリーン６を１枚用いているが、こ
れを複数枚設けることも可能である。この際はスクリー
ンで分離された調整槽内の室に最下流の室を除いて検水
排出管８を設け、その各々に自動弁22を接続することが
できる。この場合は最上流側の自動弁22より順次作動さ
せる。Although one screen 6 is used in the above embodiment, a plurality of screens may be provided. At this time, the test water discharge pipes 8 are provided in the chambers in the adjustment tank separated by the screen except for the most downstream chamber, and the automatic valve 22 can be connected to each of them. In this case, the automatic valves 22 on the most upstream side are sequentially operated.
この発明によれば、 （イ）検水中の夾雑物を除去するためのスクリーンと、
該スクリーンで分離され互いに水平な位置関係に在る調
整槽内の上流側の室と下流側の室と、最上流側の室に設
けられた検水採水管と、最上流側の室の最下部に設けら
れた検水排出管と、最下流側の室に設けられた水質自動
分析計への検水供給管と、前記分離された室のいずれか
の室に設けられた検水オーバーフロー管とからなる調整
槽と、 （ロ）前記調整槽の検水排出管に接続され検水を前記ス
クリーン部で逆流させて排出するための自動弁と、 （ハ）前記水質自動分析系に検水が供給された後に、前
記自動弁を開として前記調整槽内の検水を排出完了後、
前記自動弁を閉とするコントローラと、を備えるものと
したので、検水排水管はスクリーンの上流側に位置する
ことにより自動弁を動作させて検水を排出するときに検
水はスクリーン部を逆流する形となり、スクリーンに対
し上流側に捕捉されていた夾雑物は逆流に従ってスクリ
ーンより剥離落下する。細菌については、スクリーンに
対する付着力が弱いため、水位の低下と共に落下する。
また検水の排出によってスクリーン部分は細菌の繁殖に
必要な水を失う。このように、水質自動分析計への検水
供給のタイミングと連動させてその都度、自動弁の開閉
を行って逆流による自動洗浄を行うことにり、スクリー
ンの閉塞が防止される結果採水装置の保守が容易とな
り、水質自動分析計を高い信頼性のもとに運転すること
が可能となる。According to this invention, (a) a screen for removing contaminants in the test water,
The upstream chamber and the downstream chamber in the adjustment tank, which are separated by the screen and are in a horizontal positional relationship with each other, the test water sampling pipe provided in the most upstream chamber, and the most upstream chamber. Test water discharge pipe provided in the lower part, test water supply pipe to the water quality automatic analyzer provided in the most downstream chamber, and test water overflow pipe provided in any one of the separated chambers And (b) an automatic valve connected to the sample water discharge pipe of the adjusting tank for discharging the sample water by causing the sample water to flow backward through the screen portion, and (c) the sample water for the automatic water quality analysis system. , Is supplied, after the automatic valve is opened and the test water in the adjusting tank is completely discharged,
Since the controller for closing the automatic valve is provided, the test water drainage pipe is located on the upstream side of the screen to operate the automatic valve to discharge the test water, so The backflow occurs, and the impurities trapped on the upstream side of the screen peel off from the screen in accordance with the backflow. Bacteria have a weak adhesive force to the screen, and thus fall when the water level decreases.
In addition, the discharge of the test water causes the screen to lose the water required for bacterial growth. In this way, in conjunction with the timing of water supply to the automatic water quality analyzer, the automatic valve is opened and closed each time to perform automatic washing by backflow, which prevents the screen from being blocked. Maintenance becomes easy and it becomes possible to operate the automatic water quality analyzer with high reliability.
第１図はこの発明の実施例に係る採水装置の構成図であ
る。 ４：調整槽、4A，4B：調整槽内の室、５：水質自動分析
計、６：スクリーン、７：検水採水管、８：検水排出
管、９：検水オーバフロー管、10：検水供給管、22：自
動弁。FIG. 1 is a configuration diagram of a water sampling device according to an embodiment of the present invention. 4: Adjusting tank, 4A, 4B: Room inside adjusting tank, 5: Automatic water quality analyzer, 6: Screen, 7: Test water sampling pipe, 8: Test water discharging pipe, 9: Test water overflow pipe, 10: Test Water supply pipe, 22: automatic valve.
Claims (1)
クリーンと、該スクリーンで分離され互いに水平な位置
関係に在る調整槽内の上流側の室と下流側の室と、最上
流側の室に設けられた検水採水管と、最上流側の室の最
下部に設けられた検水排出管と、最下流側の室に設けら
れた水質自動分析計への検水供給管と、前記分離された
室のいずれかの室に設けられた検水オーバーフロー管と
からなる調整槽と、 （ロ）前記調整槽の検水排出管に接続され検水を前記ス
クリーン部で逆流させて排出するための自動弁と、 （ハ）前記水質自動分析計に検水が供給された後に、前
記自動弁を開として前記調整槽内の検水を排出完了後、
前記自動弁を閉とするコントローラと、 を備えたことを特徴とする水質自動分析計の採水装置。(A) A screen for removing contaminants in the test water, an upstream chamber and a downstream chamber in the adjusting tank which are separated by the screen and are in a horizontal positional relationship with each other, Test water sampling pipe installed in the upstream chamber, test water discharge pipe installed in the lowest part of the most upstream chamber, and water supply to the automatic water quality analyzer installed in the most downstream chamber A control tank comprising a pipe and a test water overflow pipe provided in any one of the separated chambers, and (b) a test water which is connected to the test water discharge pipe of the control tank and flows back through the screen portion. And (c) after the test water is supplied to the automatic water quality analyzer, the automatic valve is opened to completely discharge the test water in the adjusting tank,
A water sampling apparatus for an automatic water quality analyzer, comprising: a controller that closes the automatic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28913386A JPH0650309B2 (en) | 1986-12-04 | 1986-12-04 | Water sampling device for automatic water quality analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28913386A JPH0650309B2 (en) | 1986-12-04 | 1986-12-04 | Water sampling device for automatic water quality analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63140959A JPS63140959A (en) | 1988-06-13 |
| JPH0650309B2 true JPH0650309B2 (en) | 1994-06-29 |
Family
ID=17739183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28913386A Expired - Lifetime JPH0650309B2 (en) | 1986-12-04 | 1986-12-04 | Water sampling device for automatic water quality analyzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650309B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| KR101147138B1 (en) | 2011-11-03 | 2012-05-25 | (주)청암휴엔텍 | Smapling device for water quality measuring system |
| CN104020268B (en) * | 2014-06-13 | 2015-10-28 | 吉林市盟友科技开发有限责任公司 | Water quality safety online auto monitoring system servomechanism installation |
| JP7310523B2 (en) * | 2019-10-11 | 2023-07-19 | ウシオ電機株式会社 | Sampling device and analyzer |
| CN111722649B (en) * | 2020-06-30 | 2021-05-14 | 江苏拓米洛环境试验设备有限公司 | Humidification water charging system and environmental test case |
| CN116929854B (en) * | 2023-09-18 | 2023-12-12 | 中建五局第三建设有限公司 | Sampling device and water sampling method |
-
1986
- 1986-12-04 JP JP28913386A patent/JPH0650309B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009063489A (en) * | 2007-09-07 | 2009-03-26 | Yaskawa Electric Corp | Adjustment tank for analyzing water |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63140959A (en) | 1988-06-13 |
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