JP2009156762A - Cleaning system for measuring sensor in wastewater treatment facility - Google Patents

Cleaning system for measuring sensor in wastewater treatment facility Download PDF

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JP2009156762A
JP2009156762A JP2007336745A JP2007336745A JP2009156762A JP 2009156762 A JP2009156762 A JP 2009156762A JP 2007336745 A JP2007336745 A JP 2007336745A JP 2007336745 A JP2007336745 A JP 2007336745A JP 2009156762 A JP2009156762 A JP 2009156762A
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measurement
sensor
air
cleaning system
measuring
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Kazuo Yamaoka
一夫 山岡
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KURARISU KANKYO KK
WAKAO DENKI KK
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KURARISU KANKYO KK
WAKAO DENKI KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide the configuration of a cleaning system capable of cleaning a measuring sensor in a very simple and inexpensive state by the use of air used for an aerator. <P>SOLUTION: The cleaning system of the sensor 1 for various measurement, in a wastewater treatment facility, achieves the objective by branching from an aerating pneumatic line to lines and colliding the branched air and water moving with the air to a measurement portion 11 where a measurement element in the measuring sensor 1 is present, in a stage where measurement has not been performed, based on the control for every measurement timing of a timer controller concerned in the opening and closing of a valve 4 in the branched line. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、生活廃水又は産業廃水等の廃水処理施設において、諸測定を行っている測定用センサーの洗浄システムに関するものである。   The present invention relates to a measurement sensor cleaning system that performs various measurements in a wastewater treatment facility such as domestic wastewater or industrial wastewater.

廃水処理システムでは、溶存酸素の濃度(DO濃度)、酸化還元電位(ORP電位)、酸性及びアルカリ性の程度の値(PH値)等の測定が行われており、かつ当該測定に基づく測定値は、溶存酸素の供給量、更には電子受容体の供給量等の自動制御に不可欠なパラメーターとして設定されている。   In the wastewater treatment system, the dissolved oxygen concentration (DO concentration), redox potential (ORP potential), acidity and alkalinity values (PH value) are measured, and the measurement values based on the measurement are as follows: These parameters are set as indispensable parameters for automatic control of the supply amount of dissolved oxygen and the supply amount of electron acceptor.

上記測定は、通常廃水処理施設のうちの曝気槽、即ち溶存酸素を供給して廃水中の不純物に対するバクテリアの活性を伴う反応によって浄化を行う槽において行われているが、前記各測定を行う測定器において、測定素子が存在している部位である測定部には不純物が付着し、誤動作の原因となって正常な測定ができないという弊害を免れることができない。   The above measurement is usually performed in an aeration tank in a wastewater treatment facility, that is, a tank in which dissolved oxygen is supplied and purification is performed by a reaction accompanied by bacterial activity against impurities in the wastewater. In the instrument, impurities cannot adhere to the measurement part, which is the part where the measurement element is present, and it is not possible to avoid the harmful effect that normal measurement cannot be performed due to malfunction.

このような状況に鑑み、従来の廃水処理システムにおいては、測定用センサーに対し浄化用の水を圧力ポンプによって配水管を通して水を圧送し、浄化を行っている。   In view of such a situation, in a conventional wastewater treatment system, purification is performed by pumping water for purification with a pressure pump through a distribution pipe to a measurement sensor.

しかしながら、このような浄化システムの場合には、浄化水を圧送する圧力ポンプ、更には配水管などの格別の施設が不可欠となり、相当の経済負担を免れることができない。   However, in the case of such a purification system, a pressure pump for pumping the purified water and a special facility such as a water pipe are indispensable, and a considerable economic burden cannot be avoided.

更には、寒冷地において浄化する水が凍結した場合には、浄化作用を行うことが不可能とならざるを得ない。   Furthermore, when the water to be purified in a cold region is frozen, it must be impossible to perform the purification action.

このような凍結によるアクシデントを改善するために、例えば特許文献1においては、超音波洗浄を採用しているが、超音波洗浄は、圧力水洗浄の場合よりも更に高価な装置を必要としている。   In order to improve such an accident caused by freezing, for example, in Patent Document 1, ultrasonic cleaning is employed. However, ultrasonic cleaning requires a more expensive device than the case of pressure water cleaning.

曝気槽においては、曝気用配管に供給された溶存酸素の槽内の移動によって乱流を伴った水流が生じているが、従来技術においては、このような曝気に使用する空気に着目せずして、前記のような余分のコストによる洗浄方式を採用していた。   In the aeration tank, a water flow accompanied by a turbulent flow is generated by the movement of the dissolved oxygen supplied to the aeration pipe in the tank. However, in the prior art, attention is not paid to the air used for such aeration. Thus, the cleaning method at the extra cost as described above has been adopted.

特開平5−345186号公報JP-A-5-345186

前記のような従来技術の状況に鑑み、本発明は、曝気槽に使用する空気流を利用して、極めて簡便かつ安価な状態にて測定用センサーの洗浄を可能とする洗浄システムの構成を提供することを課題としている。   In view of the state of the prior art as described above, the present invention provides a configuration of a cleaning system that enables the measurement sensor to be cleaned in an extremely simple and inexpensive state using the air flow used in the aeration tank. The challenge is to do.

前記課題を解決するため、本発明の基本構成は、廃水処理施設における各種測定用センサーの洗浄システムにおいて、曝気用空気配管から分流させ、当該分流ラインのバルブの開閉に関与しているタイマー制御装置の測定の時間毎の制御に基づいて、測定を行っていない段階にて、当該分流した空気及び当該空気と共に移動する水を前記測定用センサーにおける測定素子が存在している測定部分に衝突させることに基づく測定用センサーの洗浄システムからなる。   In order to solve the above-mentioned problems, the basic configuration of the present invention is a timer control device that is diverted from an aeration air pipe and is involved in opening and closing a valve of the diversion line in a cleaning system for various measurement sensors in a wastewater treatment facility Based on the control for each time of the measurement, when the measurement is not performed, the divided air and the water that moves together with the air are caused to collide with the measurement portion where the measurement element in the measurement sensor exists. It consists of a sensor cleaning system based on

前記基本構成においては、単に曝気用配管からの分流ラインによるパイプ、及び当該ラインにおけるバルブ並びに当該バルブに対するタイマー制御装置を設けるという極めて簡単な構成によって、圧力水洗浄方式及び超音波洗浄方式よりも安価な経済コストにて、しかも同程度の洗浄機能を発揮することが可能である。   In the basic configuration, it is less expensive than the pressure water cleaning method and the ultrasonic cleaning method by simply providing a pipe by a diversion line from the aeration pipe, a valve in the line, and a timer control device for the valve. It is possible to exhibit the same level of cleaning function at a low economic cost.

本発明においては、曝気用空気配管から分流した曝気用空気を測定用センサーの測定部に突出させ、当該突出に伴う水流に基づいて、測定部及びその近傍に付着した不純物を除去することを基本原理としている。   In the present invention, the aeration air diverted from the aeration air pipe is projected to the measurement unit of the measurement sensor, and impurities adhering to the measurement unit and the vicinity thereof are removed based on the water flow accompanying the projection. It is the principle.

但し、測定部に対し、前記水流が生じている段階では、センサーが正常な値を測定することができないことから、本発明においては、所定の時間間隔に従って、測定段階において分流ラインにおけるバルブを閉鎖し、洗浄段階において、バルブを開放するというタイマー制御装置(図示せず)が行われている(尚、このようなタイマー制御装置による制御は、従来技術である圧力水位浄方式及び超音波洗浄方式においても変わりはない。)。   However, since the sensor cannot measure a normal value at the stage where the water flow is generated with respect to the measurement unit, in the present invention, the valve in the diversion line is closed at the measurement stage according to a predetermined time interval. In the cleaning stage, a timer control device (not shown) for opening the valve is used (the control by such a timer control device is a pressure water level cleaning method and an ultrasonic cleaning method which are conventional techniques). There is no change in.)

図1(a)は、本発明の典型的な実施形態を示しており、分流ラインに係るパイプの突出口を下端側に位置している測定部分の下側近傍に配置し、かつ分流した空気を上側に突出させることを特徴としている。   FIG. 1 (a) shows a typical embodiment of the present invention, in which a pipe outlet associated with a diversion line is arranged in the vicinity of the lower side of the measurement portion located on the lower end side, and the air is diverted. Is characterized by protruding upward.

このような実施形態においては、パイプの突出口から突出した空気及び当該空気の突出に伴う水流が測定部11の真正面に衝突することになり、効率的な洗浄を実現することができる。   In such an embodiment, the air protruding from the protruding port of the pipe and the water flow accompanying the protrusion of the air collide directly in front of the measuring unit 11, and efficient cleaning can be realized.

図1(b)の実施形態は、図1(a)の実施形態に立脚したうえで、測定用センサー1の下端側に位置して測定部11及びその上側の周囲に上昇する空気及び水を遮蔽する遮蔽部5を設置し、測定用センサー1の周囲において乱流を生じさせ、かつ当該乱流によって測定用センサー1の側部を洗浄することを特徴としている。   The embodiment of FIG. 1 (b) is based on the embodiment of FIG. 1 (a), and is located on the lower end side of the measurement sensor 1, and air and water rising around the measurement unit 11 and its upper side. A shielding part 5 for shielding is installed, a turbulent flow is generated around the measurement sensor 1, and the side part of the measurement sensor 1 is washed by the turbulent flow.

即ち、単に遮蔽部5を設けることによって、測定用センサー1の側部を効率的に洗浄することができる。   In other words, the side portion of the measuring sensor 1 can be efficiently cleaned simply by providing the shielding portion 5.

本発明に係る洗浄システムの場合においても、従来技術の場合と同様に、完璧な洗浄を保証する訳ではなく、定期的に廃水処理施設から測定用センサー1を取り出し、付着物の除去を行うという定期的な点検を不可欠とするが、そのような点検及び洗浄の頻度を少なくすることに技術的意義が存在する。   Even in the case of the cleaning system according to the present invention, as in the case of the prior art, perfect cleaning is not guaranteed, and the measurement sensor 1 is periodically taken out from the wastewater treatment facility to remove the deposits. Although periodic inspection is essential, there is a technical significance in reducing the frequency of such inspection and cleaning.

したがって、測定用センサー1を定期的な点検のために曝気槽の外部に取り出すことを考慮するならば、前記遮蔽部5は測定用センサー1に固着するのではなく、分流パイプ3に固着すると良い。   Therefore, if it is considered that the measurement sensor 1 is taken out of the aeration tank for periodic inspection, the shielding portion 5 is not fixed to the measurement sensor 1 but is preferably fixed to the flow dividing pipe 3. .

以下、実施例に即して説明する。   In the following, description will be made in accordance with examples.

実施例においては、図2に示すように、分流ラインに係るパイプの突出口を測定用センサー1の下端に位置している測定部11の側部近傍に配置し、分流した空気を当該側部側に突出させることを特徴としている。   In the embodiment, as shown in FIG. 2, the projecting port of the pipe related to the flow dividing line is arranged in the vicinity of the side of the measuring unit 11 located at the lower end of the measuring sensor 1, and the divided air is supplied to the side. It is characterized by protruding to the side.

このような実施例においては、パイプの突出口から突出する空気及び当該突出に伴う水流は、片側に位置している測定部11に付着している不純物を測定部の表面に沿った水流によって離脱させることができるので、効率的な不純物の除去を実現することができる(これに対し、図1(a)、(b)の実施形態の場合には、水流が測定部11の表面に直交した状態にて衝突する関係上、直ちに不純物が離脱する訳ではない。)。   In such an embodiment, the air protruding from the protruding port of the pipe and the water flow accompanying the protrusion are separated from the impurities adhering to the measuring unit 11 located on one side by the water flow along the surface of the measuring unit. Therefore, efficient impurity removal can be realized (in contrast to this, in the case of the embodiment of FIGS. 1A and 1B, the water flow is orthogonal to the surface of the measurement unit 11). (Due to the collision in the state, the impurities are not released immediately.)

そして、図2に示すように、分流ラインに係るパイプの突出口を測定用センサー1の下端に位置している測定部11の側部近傍に配置し、分流した空気を当該側部側に突出させることを特徴とする構成を採用した場合には、前記分流によって、測定用センサー1において測定部11の上側に位置している側部をも洗浄を行うことが可能となる。   Then, as shown in FIG. 2, the projecting port of the pipe related to the diversion line is arranged in the vicinity of the side portion of the measuring unit 11 located at the lower end of the measuring sensor 1, and the diverted air is projected to the side portion side. When the configuration characterized by the above is adopted, it is possible to clean the side portion located on the upper side of the measurement unit 11 in the measurement sensor 1 by the diversion.

本発明は、廃水処理施設の種類を問わず、測定用センサー1の経済的な洗浄に資することができる。   The present invention can contribute to economical cleaning of the measurement sensor 1 regardless of the type of wastewater treatment facility.

本発明の典型的な実施形態を示す側面図であって、(a)は基本構成を示しており、(b)は特に測定用センサーの側部において乱流を生じさせる実施形態を示す。It is a side view which shows typical embodiment of this invention, Comprising: (a) has shown the basic composition, (b) shows embodiment which produces a turbulent flow especially in the side part of the sensor for a measurement. 本発明の実施例の構成を示す側面図である(曝気用配管及びバルブの配置は図1と同様なので、これらの図示を省略する。)。It is a side view which shows the structure of the Example of this invention (The arrangement | positioning of the piping for aeration and a valve | bulb is the same as that of FIG. 1, Therefore These illustration is abbreviate | omitted.).

符号の説明Explanation of symbols

1 測定用センサー
11 測定部
2 曝気用配管
3 分流パイプ
31 分流パイプの先端部
4 バルブ
5 遮蔽部
51 遮蔽部に対する支持部
DESCRIPTION OF SYMBOLS 1 Measurement sensor 11 Measurement part 2 Aeration piping 3 Split pipe 31 The front-end | tip part of a split pipe 4 Valve 5 Shielding part 51 Supporting part with respect to shielding part

Claims (5)

廃水処理施設における各種測定用センサーの洗浄システムにおいて、曝気用空気配管から分流させ、当該分流ラインのバルブの開閉に関与しているタイマー制御装置の測定の時間毎の制御に基づいて、測定を行っていない段階にて、当該分流した空気及び当該空気と共に移動する水を前記測定用センサーにおける測定素子が存在している測定部分に衝突させることに基づく測定用センサーの洗浄システム。   In a cleaning system for various measuring sensors in a wastewater treatment facility, measurement is performed based on the time-dependent control of the timer controller that is diverted from the aeration air piping and involved in opening and closing the valves of the diversion line. A measurement sensor cleaning system based on colliding the diverted air and the water that moves together with the air against a measurement portion where the measurement element is present in the measurement sensor at a stage where the measurement is not performed. 分流ラインに係るパイプの突出口を下端側に位置している測定部分の下側近傍に配置し、かつ分流した空気を上側に突出させることを特徴とする請求項1記載の測定用センサーの洗浄システム。   2. The measuring sensor cleaning device according to claim 1, wherein the projecting port of the pipe related to the diverting line is disposed in the vicinity of the lower side of the measuring portion located on the lower end side, and the diverted air is projected upward. system. 測定用センサーの下端側に位置して測定部及びその上側の周囲に上昇する空気及び水を遮蔽する遮蔽部を設置し、測定用センサーの周囲において乱流を生じさせ、かつ当該乱流によって測定用センサーの側部を洗浄することを特徴とする請求項2記載の測定用センサーの洗浄システム。   A measurement part and a shielding part that shields the rising air and water around the upper part of the measurement sensor are installed at the lower end of the measurement sensor, and a turbulent flow is generated around the measurement sensor. 3. The measuring sensor cleaning system according to claim 2, wherein a side portion of the measuring sensor is cleaned. 分流ラインに係るパイプの突出口を測定用センサーの下端に位置している測定部の側部近傍に配置し、分流した空気を当該側部側に突出させることを特徴とする請求項1記載の測定用センサーの洗浄システム。   The projecting port of the pipe related to the diversion line is arranged in the vicinity of the side part of the measurement unit located at the lower end of the sensor for measurement, and the diverted air is projected to the side part side. Cleaning system for measuring sensor. パイプの先端から噴出した空気及び当該空気と共に移動する水流の一部が、測定部が存在している下端側より上側の周囲壁部に衝突し、かつ当該壁部に沿って流動することを特徴とする請求項4記載の測定用センサーの洗浄システム。   A part of the water jetted from the tip of the pipe and the water flow that moves together with the air collides with the surrounding wall portion above the lower end side where the measuring portion exists and flows along the wall portion. The cleaning system for a sensor for measurement according to claim 4.
JP2007336745A 2007-12-27 2007-12-27 Cleaning system for measuring sensor in wastewater treatment facility Pending JP2009156762A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103086525A (en) * 2013-01-24 2013-05-08 浙江理工大学 Self-suction three-mixing pipe two-level jet aeration device
CN107209143A (en) * 2015-01-12 2017-09-26 艺康美国股份有限公司 Equipment for maintaining sensor accuracy
CN109502785A (en) * 2018-11-30 2019-03-22 范升 A kind of environmental protection Automated water processing equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103086525A (en) * 2013-01-24 2013-05-08 浙江理工大学 Self-suction three-mixing pipe two-level jet aeration device
CN107209143A (en) * 2015-01-12 2017-09-26 艺康美国股份有限公司 Equipment for maintaining sensor accuracy
EP3245508A4 (en) * 2015-01-12 2018-10-17 Ecolab USA Inc. Apparatus for maintaining sensor accuracy
CN107209143B (en) * 2015-01-12 2020-10-16 艺康美国股份有限公司 Apparatus for maintaining sensor accuracy
CN109502785A (en) * 2018-11-30 2019-03-22 范升 A kind of environmental protection Automated water processing equipment

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