JP2004321921A - Chemical feeder - Google Patents

Chemical feeder Download PDF

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Publication number
JP2004321921A
JP2004321921A JP2003119443A JP2003119443A JP2004321921A JP 2004321921 A JP2004321921 A JP 2004321921A JP 2003119443 A JP2003119443 A JP 2003119443A JP 2003119443 A JP2003119443 A JP 2003119443A JP 2004321921 A JP2004321921 A JP 2004321921A
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Japan
Prior art keywords
chemical
liquid
chemical solution
storage tank
supply
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JP2003119443A
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Japanese (ja)
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JP4155862B2 (en
Inventor
Keizo Kimura
敬三 木村
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Suido Kiko Kaisha Ltd
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Suido Kiko Kaisha Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a chemical feeder which, when the feed of a chemical is stopped because of a trouble in a common chemical feeder, can quickly start a recovery work, and can continue the feed of the chemical even during performing the recovery work. <P>SOLUTION: A chemical overflowing from a chemical hold tank 3 for holding a chemical is fed into a chemical pour point P through a normal feed pipe 4B. When a feed state detector 6 detects feed stop, an alarm 7 tells the feed stop to the administrator, a selector valve 5A is opened by a control unit 8 to feed a chemical to the chemical pour point P through an emergent feed pipe 5D from the bottom of the chemical hold tank 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、薬液注入装置に関し、さらに詳しくは、通常の薬液送給系に不具合が起こり送給が停止した場合に、迅速に回復作業を開始できると共に回復作業が行われている間も薬液の注入を継続できる薬液注入装置に関する。
【０００２】
【従来の技術】
従来、薬液貯蔵槽からポンプを用いて小出槽に上方から薬液を供給し、小出槽の底部から薬液注入点へ薬液を送給する薬液注入装置が知られている（例えば、特許文献１参照。）。
【０００３】
【特許文献１】
特開平１１−５７６８７号公報
【０００４】
【発明が解決しようとする課題】
上記従来の薬液注入装置では、例えばポンプが故障して小出槽への薬液の供給が停止しても、小出槽に滞留している分の薬液の注入は継続できる。
しかし、小出槽への薬液の供給が停止したことを検出し報知する手段を備えていないため、小出槽まで空になって薬液の注入が止まるまで気付かず、気付いた時点から回復作業を開始しても、回復作業の間は薬液の注入が停止してしまう問題点があった。
そこで、本発明の目的は、通常の薬液送給系に不具合が起こり送給が停止した場合に、迅速に回復作業を開始できると共に回復作業が行われている間も薬液の注入を継続できる薬液注入装置を提供することにある。
【０００５】
【課題を解決するための手段】
第１の観点では、本発明は、薬液注入点の上方に配置され薬液を滞留する薬液滞留槽と、前記薬液滞留槽に薬液を供給する薬液供給手段と、前記薬液滞留槽に滞留し所定液位よりオーバーフローした薬液を前記薬液注入点へ送給する通常時薬液送給手段と、前記薬液滞留槽の底部または底部近傍から前記薬液注入点へ前記薬液を自然流下で送液しうる緊急時送液手段と、前記通常時薬液送給手段による薬液送給が停止したことを検出する送給停止検出手段と、前記送給停止検出手段で送給停止を検出したことを報知する送給停止報知手段とを具備したことを特徴とする薬液注入装置を提供する。
上記第１の観点による薬液注入装置では、通常時は通常時薬液送給手段によって薬液滞留槽の所定液位よりオーバーフローした薬液が薬液注入点へ送給されている。薬液供給手段に不具合が起こると、オーバーフローがなくなり、薬液が送給されなくなる。すると、送給停止検出手段が送給停止を検出し、送給停止報知手段が報知するため、管理者は、直ちに回復作業を開始することが出来る。そして、手動で又は自動的に緊急時送液手段を作動させることで、薬液滞留槽の所定液位まで滞留している分だけ自然流下で薬液の注入を継続できる。かくして、回復作業が行われている間も薬液の注入を継続できる。
【０００６】
第２の観点では、本発明は、薬液を滞留する薬液滞留槽と、前記薬液滞留槽に薬液を供給する薬液供給手段と、前記薬液滞留槽に滞留し所定液位よりオーバーフローした薬液を前記薬液注入点へ送給する通常時薬液送給手段と、前記薬液滞留槽の底部または底部近傍から前記薬液注入点へ前記薬液を送液しうる緊急時送液手段と、前記通常時薬液送給手段による薬液送給が停止したことを検出する送給停止検出手段と、前記送給停止検出手段で送給停止を検出したことを報知する送給停止報知手段とを具備したことを特徴とする薬液注入装置。
上記第２の観点による薬液注入装置では、通常時は通常時薬液送給手段によって薬液滞留槽の所定液位よりオーバーフローした薬液が薬液注入点へ送給されている。薬液供給手段に不具合が起こると、オーバーフローがなくなり、薬液が送給されなくなる。すると、送給停止検出手段が送給停止を検出し、送給停止報知手段が報知するため、管理者は、直ちに回復作業を開始することが出来る。そして、手動で又は自動的に緊急時送液手段を作動させることで、薬液滞留槽の所定液位まで滞留している分だけ薬液の注入を継続できる。かくして、回復作業が行われている間も薬液の注入を継続できる。
【０００７】
第３の観点では、本発明は、上記構成の薬液注入装置において、前記送給停止検出手段で送給停止を検出した時に前記緊急時送液手段を自動的に作動させる制御手段を具備したことを特徴とする薬液注入装置を提供する。
上記第３の観点による薬液注入装置では、薬液供給手段に不具合が起こってオーバーフローがなくなり薬液が送給されなくなると、自動的に緊急時送液手段が作動し、薬液滞留槽の底部または底部近傍から薬液を送液する。従って、無注入の時間をなくすことが出来る。
【０００８】
第４の観点では、本発明は、上記構成の薬液注入装置において、前記薬液供給手段は、前記薬液滞留槽の底部または底部近傍に薬液を供給することを特徴とする薬液注入装置を提供する。
上記第４の観点による薬液注入装置では、薬液は、薬液滞留槽の底部または底部近傍に供給され、所定液位よりオーバーフローしており、薬液滞留槽内の薬液は常に入れ替わっている。このため、常に新しい薬液を送給することが出来る。
なお、薬液滞留槽に撹拌手段を設ければ、薬液滞留槽の上方から薬液を供給しても、常に新しい薬液を送給することが出来る。
【０００９】
【発明の実施の形態】
以下、図に示す実施の形態により本発明をさらに詳細に説明する。なお、これにより本発明が限定されるものではない。
【００１０】
−第１の実施形態−
図１は、第１の実施形態にかかる薬液注入装置１００を示す構成ブロック図である。
この薬液注入装置１００は、薬液を貯蔵した薬液貯蔵槽１と、薬液注入点Ｐの上方に配置された薬液滞留槽３と、薬液貯蔵槽１内の薬液を薬液滞留槽３の底部または底部近傍に供給するためのポンプ２Ａ，流量計２Ｂ，流量調節弁２Ｃおよび薬液供給管２Ｄと、通常時に薬液滞留槽３に滞留し所定液位よりオーバーフローした薬液を薬液注入点Ｐへ送給するオーバーフロー管４Ａおよび通常時薬液送給管４Ｂと、緊急時に薬液滞留槽３の底部または底部近傍から薬液注入点Ｐへ薬液を送液するための切替弁５Ａ，流量計５Ｂ，流量調節弁５Ｃおよび緊急時送液管５Ｄと、通常時薬液送給管４Ｂによる薬液送給状態を検出する送給状態検出器６と、送給状態検出器６で送給停止を検出したことを報知する報知装置７と、送給状態検出器６で送給停止を検出した時に切替弁５Ａを自動的に切り替えて緊急時送液管５Ｄから薬液を注入させる制御装置８とを具備している。
【００１１】
薬液注入点Ｐは、原水流路９に設けてある。原水流路９には、取水した湖川水，地下水，濾過や沈殿などの処理を施された水，他の薬品を混和された水，廃水などが流れている。
【００１２】
薬液は、水処理用薬液であり、例えばポリ塩化アルミニウム溶液，液体硫酸バンドなどの凝集剤や、苛性ソーダ溶液などのアルカリ剤や、次亜塩素酸ナトリウム溶液などの消毒剤である。
【００１３】
送給状態検出器６は、通常時薬液送給管４Ｂ中の薬液の流れの有無を検出する光電センサである。
【００１４】
図２は、薬液注入装置１００の動作の要部を示すフロー図である。
ステップＳ１では、ポンプ２Ａの運転を開始し、薬液貯蔵槽１から薬液滞留槽３への薬液の供給を開始する。
ステップＳ２では、通常時送給管４Ｂを経由しての薬液送給が開始されたことを送給状態検出器６で検出するまで待機し、薬液送給が開始されたことを検出したらステップＳ３へ進む。
ステップＳ３では、通常時送給管４Ｂを経由しての薬液送給が停止したことを送給状態検出器６で検出するまで待機し、薬液送給が停止したことを検出したらステップＳ４へ進む。
【００１５】
ステップＳ４では、制御装置８の制御により切替弁５Ａを開き、薬液滞留槽３の底部または底部近傍から薬液注入点Ｐへ自然流下で薬液を送液する。
ステップＳ５では、通常時送給管４Ｂを経由しての薬液送給が停止したことを管理者へ報知する。そして、終了する。
【００１６】
第１の実施形態にかかる薬液注入装置１００によれば、次の効果が得られる。
（１）薬液貯蔵槽１内の薬液が払底したり、ポンプ２Ａが故障したり、薬液供給管２Ｄが破損したりして、薬液滞留槽３へ薬液が供給されなくなり、通常時送給管４Ｂを通じての薬液送給が停止すると、その旨が直ちに管理者に報知されるので、迅速に管理者は回復作業を開始することが出来る。
（２）通常時送給管４Ｂを通じての薬液送給が停止すると、自動的に緊急時送液管５Ｄを通じて薬液が送液されるので、回復作業の間も薬液の注入を継続でき、薬液の注入が途切れない。
（３）薬液滞留槽３に滞留している薬液が常に入れ替わるため、常に新しい薬液を注入できる。
（４）薬液滞留槽３から自然流下で薬液を注入するため、回復作業中に電源を切っても薬液注入を継続できる。
【００１７】
−第２の実施形態−
図３は、第２の実施形態にかかる薬液注入装置２００を示す構成ブロック図である。
この薬液注入装置２００は、第１の実施形態にかかる薬液注入装置１００の切替弁５Ａ，流量計５Ｂおよび流量調節弁５Ｃの代わりに、ポンプ５Ｅを設けた構成である。
【００１８】
通常時送給管４Ｂを経由しての薬液送給が停止したことを送給状態検出器６で検出したら、制御装置８の制御によりポンプ５Ｅを作動させ、薬液滞留槽３の底部または底部近傍から薬液注入点Ｐへ薬液を送液する。
【００１９】
第２の実施形態にかかる薬液注入装置２００でも、第１の実施形態にかかる薬液注入装置１００の効果（１）〜（３）が得られる。
【００２０】
【発明の効果】
本発明の薬液注入装置によれば、通常の薬液送給系に不具合が起きて薬液の送給が停止した場合に、迅速に回復作業を開始できると共に回復作業が行われている間も薬液の注入を継続できる。
【図面の簡単な説明】
【図１】第１の実施形態にかかる薬液注入装置の構成ブロック図である。
【図２】第１の実施形態にかかる薬液注入装置の動作の要部を示すフロー図である。
【図３】第２の実施形態にかかる薬液注入装置の構成ブロック図である。
【符号の説明】
１ 薬液貯蔵槽
２Ａ ポンプ
２Ｄ 薬液供給管
３ 薬液滞留槽
４Ａ オーバーフロー管
４Ｂ 通常時送給管
５Ａ 切替弁
５Ｄ 緊急時送液管
５Ｆ ポンプ
６ 送給状態検出器
７ 報知装置
８ 制御装置
９ 原水流路
１００，２００ 薬液注入装置
Ｐ 薬液注入点[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a drug solution injection device, and more particularly, when a failure occurs in a normal drug solution delivery system and feed is stopped, a recovery operation can be started quickly and a solution can be supplied while the recovery operation is being performed. The present invention relates to a liquid injector capable of continuing injection.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been known a chemical liquid injector which supplies a chemical liquid from above to a small dispensing tank using a pump from a chemical liquid storage tank and supplies the chemical liquid from the bottom of the small liquid dispensing tank to a chemical liquid injection point (for example, Patent Document 1). reference.).
[0003]
[Patent Document 1]
JP-A-11-57687
[Problems to be solved by the invention]
In the above-mentioned conventional liquid injector, for example, even if the pump breaks down and the supply of the liquid medicine to the small dispensing tank is stopped, the injection of the chemical liquid remaining in the small dispensing tank can be continued.
However, since there is no means for detecting and notifying that the supply of the chemical solution to the small tank has stopped, it is not noticed until the small tank is emptied and the injection of the chemical solution is stopped. Even if it starts, there is a problem that the injection of the chemical solution is stopped during the recovery work.
In view of the above, an object of the present invention is to provide a chemical solution capable of promptly starting a recovery operation and continuing the injection of a chemical solution during the recovery operation when a failure occurs in a normal chemical liquid supply system and the supply is stopped. An injection device is provided.
[0005]
[Means for Solving the Problems]
In a first aspect, the present invention provides a chemical solution storage tank arranged above a chemical solution injection point for storing a chemical solution, a chemical solution supply means for supplying a chemical solution to the chemical solution storage tank, and a predetermined solution stored in the chemical solution storage tank. A normal chemical liquid supply means for supplying the chemical liquid overflowing from the liquid level to the chemical liquid injection point, and an emergency liquid supply capable of supplying the chemical liquid under natural flow from the bottom or near the bottom of the chemical liquid storage tank to the chemical liquid injection point. Liquid means, feed stop detecting means for detecting that the chemical liquid feeding by the normal time chemical liquid feeding means has stopped, and feed stop notification for notifying that the feed stop has been detected by the feed stop detecting means. And a liquid injector.
In the liquid injector according to the first aspect, the liquid liquid overflowing from a predetermined liquid level in the liquid reservoir is normally supplied to the liquid injection point by the liquid supply means during normal time. When a malfunction occurs in the chemical liquid supply means, the overflow does not occur and the chemical liquid is not supplied. Then, the feed stop detecting means detects the feed stop and the feed stop notifying means notifies the feed stop, so that the administrator can immediately start the recovery work. Then, by manually or automatically operating the emergency liquid feeding means, the injection of the chemical liquid can be continued under natural flow by the amount of the liquid remaining in the chemical liquid storage tank up to the predetermined liquid level. Thus, the injection of the drug solution can be continued during the recovery operation.
[0006]
In a second aspect, the present invention provides a chemical solution storage tank for storing a chemical solution, a chemical solution supply unit for supplying a chemical solution to the chemical solution storage tank, and a chemical solution that is retained in the chemical solution storage tank and overflows from a predetermined liquid level. An ordinary liquid supply means for supplying to the injection point, an emergency liquid supply means capable of supplying the liquid from the bottom or near the bottom of the liquid storage tank to the liquid injection point, and the normal liquid supply means A liquid feed stop detecting means for detecting that the supply of the chemical liquid has stopped, and a feed stop notifying means for notifying that the feed stop has been detected by the feed stop detecting means. Infusion device.
In the drug solution injection device according to the second aspect, the drug solution overflowing from a predetermined liquid level in the drug solution storage tank is normally supplied to the drug solution injection point by the normal-time drug solution supply means. When a malfunction occurs in the chemical liquid supply means, the overflow does not occur and the chemical liquid is not supplied. Then, the feed stop detecting means detects the feed stop and the feed stop notifying means notifies the feed stop, so that the administrator can immediately start the recovery work. Then, by manually or automatically operating the emergency liquid feeding means, the injection of the chemical liquid can be continued as much as the liquid liquid stays at the predetermined liquid level in the chemical liquid storage tank. Thus, the injection of the drug solution can be continued during the recovery operation.
[0007]
In a third aspect, the present invention provides the liquid medicine injection device having the above configuration, further comprising a control unit for automatically operating the emergency liquid supply unit when the supply stop detection unit detects the supply stop. The present invention provides a chemical liquid injector.
In the drug solution injection device according to the third aspect, when a problem occurs in the drug solution supply means and the overflow stops and the drug solution is no longer supplied, the emergency solution sending means is automatically operated, and the bottom or near the bottom of the drug solution storage tank is operated. To send the chemical solution. Therefore, the time of no injection can be eliminated.
[0008]
According to a fourth aspect, the present invention provides the chemical liquid injection device having the above-mentioned configuration, wherein the chemical liquid supply means supplies a chemical liquid to a bottom portion or a vicinity of the bottom of the chemical liquid storage tank.
In the chemical liquid injector according to the fourth aspect, the chemical liquid is supplied to the bottom of the chemical liquid storage tank or near the bottom, overflows from a predetermined liquid level, and the chemical liquid in the chemical liquid storage tank is constantly replaced. Therefore, a new chemical solution can be always supplied.
In addition, if a stirring means is provided in the chemical solution storage tank, a new chemical solution can always be supplied even when the chemical solution is supplied from above the chemical solution storage tank.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the drawings. Note that the present invention is not limited by this.
[0010]
-1st Embodiment-
FIG. 1 is a block diagram showing a configuration of a drug solution injector 100 according to the first embodiment.
The chemical liquid injector 100 includes a chemical liquid storage tank 1 storing a chemical liquid, a chemical liquid storage tank 3 disposed above the chemical liquid injection point P, and a chemical liquid in the chemical liquid storage tank 1 at or near the bottom of the chemical liquid storage tank 3. 2A, a flow meter 2B, a flow control valve 2C, and a chemical liquid supply pipe 2D for supplying the chemical liquid to the pump, and an overflow pipe for supplying a chemical liquid that normally stays in the chemical liquid storage tank 3 and overflows from a predetermined liquid level to the chemical liquid injection point P. A switching valve 5A, a flow meter 5B, a flow control valve 5C, and a switching valve 5A for sending a chemical from the bottom or near the bottom of the chemical storage tank 3 to the chemical injection point P in an emergency. A liquid supply pipe 5D, a supply state detector 6 for detecting a liquid supply state by the normal liquid supply pipe 4B, and a notification device 7 for notifying that the supply stop is detected by the supply state detector 6. , Fed by the feed state detector 6 And a control device 8 for injecting liquid medicine switching valve 5A from automatically switched emergency feeding tube 5D when detecting the stop.
[0011]
The chemical liquid injection point P is provided in the raw water flow path 9. In the raw water flow passage 9, lake water, groundwater, water subjected to treatment such as filtration and sedimentation, water mixed with other chemicals, wastewater, and the like flow.
[0012]
The chemical is a chemical for water treatment, for example, a coagulant such as a polyaluminum chloride solution or a liquid sulfuric acid band, an alkaline agent such as a caustic soda solution, or a disinfectant such as a sodium hypochlorite solution.
[0013]
The supply state detector 6 is a photoelectric sensor that detects the presence or absence of the flow of the chemical in the normal liquid supply pipe 4B.
[0014]
FIG. 2 is a flowchart showing a main part of the operation of the liquid injector 100.
In step S1, the operation of the pump 2A is started, and the supply of the chemical from the chemical storage tank 1 to the chemical retention tank 3 is started.
In step S2, the process waits until the supply state detector 6 detects that the supply of the chemical via the normal supply pipe 4B has been started. Proceed to.
In step S3, the process waits until the supply state detector 6 detects that the supply of the chemical solution via the normal supply pipe 4B has stopped, and proceeds to step S4 when it detects that the supply of the chemical solution has stopped. .
[0015]
In step S4, the switching valve 5A is opened under the control of the control device 8, and the chemical liquid is sent from the bottom or near the bottom of the chemical liquid storage tank 3 to the chemical liquid injection point P by natural flow.
In step S5, the administrator is notified that the supply of the chemical solution via the normal supply pipe 4B has stopped. Then, the process ends.
[0016]
According to the liquid injector 100 according to the first embodiment, the following effects can be obtained.
(1) The chemical liquid in the chemical liquid storage tank 1 runs out, the pump 2A breaks down, or the chemical liquid supply pipe 2D is damaged, so that the chemical liquid is not supplied to the chemical liquid storage tank 3 and the normal supply pipe 4B When the supply of the chemical solution through the is stopped, the fact is immediately notified to the manager, so that the manager can quickly start the recovery work.
(2) When the supply of the chemical solution through the normal supply pipe 4B is stopped, the chemical liquid is automatically sent through the emergency liquid supply pipe 5D. Infusion is not interrupted.
(3) Since the chemical solution staying in the chemical solution storage tank 3 is constantly replaced, a new chemical solution can always be injected.
(4) Since the chemical solution is injected from the chemical solution storage tank 3 under natural flow, the injection of the chemical solution can be continued even if the power is turned off during the recovery operation.
[0017]
-2nd Embodiment-
FIG. 3 is a block diagram illustrating a configuration of a drug solution injector 200 according to the second embodiment.
This chemical liquid injector 200 has a configuration in which a pump 5E is provided instead of the switching valve 5A, the flow meter 5B, and the flow rate adjusting valve 5C of the chemical liquid injector 100 according to the first embodiment.
[0018]
When the supply state detector 6 detects that the supply of the chemical solution via the normal supply pipe 4B has stopped, the pump 5E is operated under the control of the control device 8, and the bottom of the chemical solution storage tank 3 or the vicinity of the bottom is controlled. The liquid is sent to the liquid injection point P from.
[0019]
The chemical liquid injector 200 according to the second embodiment can also achieve the effects (1) to (3) of the chemical liquid injector 100 according to the first embodiment.
[0020]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the chemical | medical-solution injection | pouring apparatus of this invention, when a malfunction arises in a normal chemical | medical-solution supply system and the supply of a chemical | medical solution is stopped, a recovery operation | work can be started promptly and the chemical | medical solution is also supplied during the recovery operation. Infusion can continue.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a drug solution injection device according to a first embodiment.
FIG. 2 is a flowchart showing a main part of the operation of the drug solution injection device according to the first embodiment.
FIG. 3 is a configuration block diagram of a drug solution injector according to a second embodiment.
[Explanation of symbols]
1 Chemical storage tank 2A Pump 2D Chemical supply pipe 3 Chemical retention tank 4A Overflow pipe 4B Normal supply pipe 5A Switching valve 5D Emergency liquid supply pipe 5F Pump 6 Delivery state detector 7 Notification device 8 Control device 9 Raw water flow path 100,200 Chemical solution injection device P Chemical solution injection point

Claims (4)

薬液注入点の上方に配置され薬液を滞留する薬液滞留槽と、前記薬液滞留槽に薬液を供給する薬液供給手段と、前記薬液滞留槽に滞留し所定液位よりオーバーフローした薬液を前記薬液注入点へ送給する通常時薬液送給手段と、前記薬液滞留槽の底部または底部近傍から前記薬液注入点へ前記薬液を自然流下で送液しうる緊急時送液手段と、前記通常時薬液送給手段による薬液送給が停止したことを検出する送給停止検出手段と、前記送給停止検出手段で送給停止を検出したことを報知する送給停止報知手段とを具備したことを特徴とする薬液注入装置。A chemical solution storage tank disposed above the chemical solution injection point for storing the chemical solution, a chemical solution supply means for supplying a chemical solution to the chemical solution storage tank, and a chemical solution that is retained in the chemical solution storage tank and overflows from a predetermined liquid level at the chemical solution injection point. A normal chemical liquid supply means for supplying the chemical liquid from the bottom or the vicinity of the bottom of the chemical liquid storage tank to the chemical liquid injection point under natural flow, and the normal chemical liquid supply. Feed stop detecting means for detecting that the supply of the chemical solution by the means has stopped, and feed stop notifying means for notifying that the feed stop has been detected by the feed stop detecting means. Chemical injection device. 薬液を滞留する薬液滞留槽と、前記薬液滞留槽に薬液を供給する薬液供給手段と、前記薬液滞留槽に滞留し所定液位よりオーバーフローした薬液を前記薬液注入点へ送給する通常時薬液送給手段と、前記薬液滞留槽の底部または底部近傍から前記薬液注入点へ前記薬液を送液しうる緊急時送液手段と、前記通常時薬液送給手段による薬液送給が停止したことを検出する送給停止検出手段と、前記送給停止検出手段で送給停止を検出したことを報知する送給停止報知手段とを具備したことを特徴とする薬液注入装置。A chemical solution storage tank for storing a chemical solution, a chemical solution supply means for supplying a chemical solution to the chemical solution storage tank, and a normal chemical solution feeding for feeding the chemical solution that has accumulated in the chemical solution storage tank and has overflowed from a predetermined liquid level to the chemical solution injection point. Supply means, an emergency liquid supply means capable of supplying the chemical liquid from the bottom or near the bottom of the chemical liquid storage tank to the chemical liquid injection point, and detecting that the chemical liquid supply by the normal chemical liquid supply means has stopped. And a feed stop notifying unit for notifying that the feed stop has been detected by the feed stop detecting unit. 請求項１または請求項２に記載の薬液注入装置において、前記送給停止検出手段で送給停止を検出した時に前記緊急時送液手段を自動的に作動させる制御手段を具備したことを特徴とする薬液注入装置。3. The liquid injector according to claim 1, further comprising control means for automatically activating the emergency liquid supply means when the supply stop detection means detects a supply stop. Liquid injector. 請求項１から請求項３のいずれかに記載の薬液注入装置において、前記薬液供給手段は、前記薬液滞留槽の底部または底部近傍に薬液を供給することを特徴とする薬液注入装置。4. The liquid injector according to claim 1, wherein the liquid supply unit supplies the liquid to a bottom or a vicinity of the bottom of the liquid storage tank. 5.
JP2003119443A 2003-04-24 2003-04-24 Chemical injection device Expired - Lifetime JP4155862B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014100643A (en) * 2012-11-19 2014-06-05 Uerushii:Kk Reservoir feeding device and method of medicinal solution, and ground water clarification processor and method
JP2015139760A (en) * 2014-01-30 2015-08-03 クボタ環境サ−ビス株式会社 Chemicals distribution device, chemicals injection system, and operation method for chemicals injection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014100643A (en) * 2012-11-19 2014-06-05 Uerushii:Kk Reservoir feeding device and method of medicinal solution, and ground water clarification processor and method
JP2015139760A (en) * 2014-01-30 2015-08-03 クボタ環境サ−ビス株式会社 Chemicals distribution device, chemicals injection system, and operation method for chemicals injection system

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