JP3479436B2 - Dilution device for concentrated hypochlorous acid aqueous solution - Google Patents
Dilution device for concentrated hypochlorous acid aqueous solutionInfo
- Publication number
- JP3479436B2 JP3479436B2 JP24458397A JP24458397A JP3479436B2 JP 3479436 B2 JP3479436 B2 JP 3479436B2 JP 24458397 A JP24458397 A JP 24458397A JP 24458397 A JP24458397 A JP 24458397A JP 3479436 B2 JP3479436 B2 JP 3479436B2
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- JP
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- Prior art keywords
- aqueous solution
- hypochlorous acid
- concentrated
- acid aqueous
- solution
- 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.)
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば医療施設、
食品工場等における作業者の手や器具の消毒殺菌等に適
した次亜塩素酸水溶液を調製する技術に関し、更に詳し
くは、濃厚次亜塩素酸水溶液を水で希釈して適当な濃度
の次亜塩素酸水溶液を調製できるようにした濃厚次亜塩
素酸水溶液の希釈装置に関する。TECHNICAL FIELD The present invention relates to a medical facility,
Regarding the technology for preparing an aqueous solution of hypochlorous acid suitable for disinfecting and sterilizing workers' hands and equipment in food factories, etc., more specifically, dilute a concentrated aqueous solution of hypochlorous acid with water to prepare an appropriate concentration of hypochlorous acid The present invention relates to a concentrated hypochlorous acid aqueous solution diluting device capable of preparing a chloric acid aqueous solution.
【０００２】[0002]
【従来の技術】例えば、塩素ガスを水中に吹き込んで溶
解させたり、次亜塩素酸ナトリウムを水に溶解させる
と、ｐＨが約３〜７の範囲では、次亜塩素酸（ＨＣｌ
Ｏ）が生成される。この次亜塩素酸水溶液は、人体に比
較的安全でしかも強力な殺菌作用を有するため、プー
ル、食品等の殺菌に古くから利用されている。また、次
亜塩素酸水溶液は、食塩を添加した水を電気分解するこ
とによって生成することもできる（特公平４−４２０７
７号参照）。2. Description of the Related Art For example, when chlorine gas is blown into water to dissolve it or sodium hypochlorite is dissolved in water, when the pH is in the range of about 3 to 7, hypochlorous acid (HCl
O) is generated. This hypochlorous acid aqueous solution has been used for a long time for sterilizing pools, foods, etc. because it is relatively safe for humans and has a strong bactericidal action. The hypochlorous acid aqueous solution can also be produced by electrolyzing water containing salt (Japanese Patent Publication No. 4207/1992).
(See No. 7).
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、次亜塩
素酸水溶液を殺菌水として、例えば、医療施設、食品工
場等で大量に利用しようとすると、大掛かりな塩素ガス
の吹き込み設備や水の電解装置等を施設内に設置しなけ
ればならないため、コスト的にもスペース的にも無理が
ある。However, when an attempt is made to use a large amount of an aqueous solution of hypochlorous acid as sterilizing water in, for example, a medical facility, a food factory, etc., a large-scale chlorine gas blowing facility, a water electrolyzer, etc. Since it has to be installed in the facility, it is not possible in terms of cost and space.
【０００４】また、殺菌水として適当な濃度に調製され
た次亜塩素酸水溶液を工場等で製造し、これをタンクロ
ーリー車などで各利用施設に配送して使用しようとする
と、多量の次亜塩素酸水溶液を運ばねばならず、コスト
的にも、取扱い上からも実施するのが困難である。Further, when a hypochlorous acid aqueous solution prepared to have an appropriate concentration as sterilizing water is manufactured at a factory or the like, and it is delivered to each utilization facility by a tank truck or the like, it is necessary to use a large amount of hypochlorous acid. It is difficult to carry out the aqueous acid solution, and it is difficult to implement it in terms of cost and handling.
【０００５】そこで、工場等で製造した濃厚次亜塩素酸
水溶液をそれぞれの利用施設に運んで貯留槽等に貯留し
ておいて、この濃厚次亜塩素酸水溶液を水で適度に希釈
しながら用いることが考えられるが、濃厚次亜塩素酸水
溶液からは塩素ガスが発生し易く、周囲に高濃度の塩素
ガスが漏出して人体に危険を及ぼす虞れがあるという問
題点があった。Therefore, the concentrated hypochlorous acid aqueous solution produced in a factory is carried to each utilization facility and stored in a storage tank or the like, and this concentrated hypochlorous acid aqueous solution is used while being appropriately diluted with water. However, there is a problem that chlorine gas is likely to be generated from the concentrated aqueous solution of hypochlorous acid, and high-concentration chlorine gas may leak to the surroundings to cause a danger to the human body.
【０００６】したがって、本発明の目的は、濃厚次亜塩
素酸水溶液を安全に希釈できるようにした希釈装置を提
供することにある。Therefore, an object of the present invention is to provide a diluting device capable of safely diluting a concentrated aqueous solution of hypochlorous acid.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するた
め、本発明は、濃厚次亜塩素酸水溶液と希釈水とを混合
して所定濃度の次亜塩素酸水溶液を調製するための希釈
装置において、濃厚次亜塩素酸水溶液の導出入口を有す
る密閉型の耐腐食性の容器内に、可撓性の気密な袋体を
挿入し、該袋体の開口を前記容器に設けた通気孔に連結
して該袋体の内部を外気に連通させてなる濃厚溶液貯留
槽と、前記濃厚溶液貯留槽から供給される濃厚次亜塩素
酸水溶液を導入するための濃厚次亜塩素酸水溶液導入口
と、希釈水を導入するための希釈水導入口と、濃厚次亜
塩素酸水溶液と希釈水とを混合する撹拌手段と、所定濃
度に希釈された次亜塩素酸水溶液を取出すための次亜塩
素酸水溶液導出口とを有する混合希釈溶液槽とを備えて
いることを特徴とする濃厚次亜塩素酸水溶液の希釈装置
を提供するものである。In order to achieve the above object, the present invention provides a diluting apparatus for mixing a concentrated aqueous solution of hypochlorous acid and dilution water to prepare an aqueous solution of hypochlorous acid having a predetermined concentration. , A flexible airtight bag is inserted into a closed type corrosion-resistant container having a concentrated hypochlorous acid aqueous solution outlet, and the opening of the bag is connected to a vent provided in the container. Then, a concentrated solution storage tank in which the inside of the bag communicates with the outside air, and a concentrated hypochlorous acid aqueous solution inlet for introducing the concentrated hypochlorous acid aqueous solution supplied from the concentrated solution storage tank, A dilution water inlet for introducing dilution water, a stirring means for mixing a concentrated hypochlorous acid aqueous solution and dilution water, and a hypochlorous acid aqueous solution for taking out a hypochlorous acid aqueous solution diluted to a predetermined concentration And a mixed dilute solution tank having an outlet. There is provided a dilution device of the concentrated hypochlorite solution.
【０００８】本発明によれば、予め濃厚溶液貯留槽の容
器内に袋体がいっぱいに広がって充填された状態にして
おき、濃厚次亜塩素酸水溶液を導入するときには、導入
された濃厚次亜塩素酸水溶液の体積の分だけ袋体内の空
気を通気孔から流出させて袋体を萎ませ、濃厚次亜塩素
酸水溶液を導出するときには、導出した濃厚次亜塩素酸
の体積の分だけ通気孔から外気を袋体内に流入させて袋
体を膨らませることにより、濃厚次亜塩素酸水溶液が接
触する空気層の体積をできるだけ小さくすることができ
る。According to the present invention, the bag is filled in the container of the concentrated solution storage tank so as to be fully filled and the concentrated hypochlorous acid aqueous solution is introduced when the concentrated hypochlorous acid aqueous solution is introduced. When the bag is deflated by letting out the air in the bag by the volume of the aqueous solution of chloric acid to deflate the bag, and when the concentrated aqueous solution of concentrated hypochlorous acid is discharged, the ventilation hole is formed by the volume of the derived concentrated hypochlorous acid. By inflowing outside air into the bag body to inflate the bag body, the volume of the air layer in contact with the concentrated aqueous solution of hypochlorous acid can be minimized.
【０００９】一方、濃厚次亜塩素酸水溶液から発生する
塩素ガスは、濃厚溶液貯留層の容器内に残留する空気層
（濃厚次亜塩素酸水溶液と袋体とを除いた空隙に介在す
る空気層）に流出するが、この反応は無制限に進むわけ
ではなく、濃厚次亜塩素酸水溶液が接触する空気層の塩
素濃度が所定の値に達すると停止する。したがって、上
記空気層の体積をできるだけ小さくすることにより、濃
厚次亜塩素酸水溶液から発生する塩素ガス量を少なくし
て安全性を高めることができると共に、濃厚次亜塩素酸
水溶液からの塩素の逃散を防止することができる。On the other hand, the chlorine gas generated from the concentrated hypochlorous acid aqueous solution is an air layer remaining in the container of the concentrated solution storage layer (the air layer present in the space excluding the concentrated hypochlorous acid aqueous solution and the bag body). However, this reaction does not proceed indefinitely and stops when the concentration of chlorine in the air layer contacting the concentrated aqueous solution of hypochlorous acid reaches a predetermined value. Therefore, by making the volume of the air layer as small as possible, it is possible to reduce the amount of chlorine gas generated from the concentrated aqueous solution of hypochlorous acid and improve safety, and to escape chlorine from the concentrated aqueous solution of hypochlorous acid. Can be prevented.
【００１０】そして、濃厚溶液貯留槽に貯留された濃厚
次亜塩素酸水溶液を混合希釈溶液槽に導入すると共に、
希釈水を混合希釈溶液槽に導入し、攪拌手段によって攪
拌することにより、所望の濃度の次亜塩素酸水溶液を調
製することができる。こうして調製された適度な濃度に
希釈された次亜塩素酸水溶液を取り出して、例えば病
院、食品工場等における手洗用、器具の洗浄用等の殺
菌、洗浄水として利用することができる。Then, while introducing the concentrated hypochlorous acid aqueous solution stored in the concentrated solution storage tank into the mixed dilution solution tank,
An aqueous solution of hypochlorous acid having a desired concentration can be prepared by introducing diluting water into the mixed diluting solution tank and stirring by a stirring means. The thus prepared hypochlorous acid aqueous solution diluted to an appropriate concentration can be taken out and used as sterilizing water for hand washing in equipment such as hospitals and food factories, and for washing water.
【００１１】なお、本発明の実施に際し、前記撹拌手段
は、前記次亜塩素酸水溶液導出口に連結された供給管
と、この供給管から分岐して前記混合希釈溶液槽に連結
された返送管と、前記供給管の経路に設けたポンプと、
前記供給管及び前記返送管を通る循環経路に設けた水質
測定センサとで構成されていることが好ましい。In carrying out the present invention, the stirring means is a supply pipe connected to the hypochlorous acid aqueous solution outlet, and a return pipe branched from the supply pipe and connected to the mixed dilution solution tank. And a pump provided in the path of the supply pipe,
It is preferably configured with a water quality measuring sensor provided in a circulation path passing through the supply pipe and the return pipe.
【００１２】上記の場合には、混合希釈溶液槽内の水を
循環させることによって混合できると共に、循環経路に
設けた水質測定センサによって例えば塩素濃度、ｐＨ等
を測定することができ、このセンサの測定値に基づいて
濃厚次亜塩素酸水溶液や希釈水の導入量を調整すること
ができる。In the above case, the water in the mixed dilute solution tank can be circulated to mix the water, and the water quality measuring sensor provided in the circulation path can measure, for example, chlorine concentration, pH and the like. The amount of concentrated hypochlorous acid aqueous solution or dilution water introduced can be adjusted based on the measured value.
【００１３】[0013]
【発明の実施の形態】図１〜３には、本発明による濃厚
次亜塩素酸水溶液の希釈装置の一実施形態が示されてい
る。図１は同希釈装置の全体を示す概略説明図、図２は
同希釈装置で用いる濃厚溶液貯留槽の断面図、図３は同
濃厚溶液貯留槽の袋体の作用を示す説明図である。1 to 3 show an embodiment of a concentrated hypochlorous acid aqueous solution diluting apparatus according to the present invention. FIG. 1 is a schematic explanatory view showing the whole of the diluting device, FIG. 2 is a sectional view of a concentrated solution storage tank used in the diluting device, and FIG. 3 is an explanatory view showing an action of a bag body of the concentrated solution storage tank.
【００１４】図１に示すように、この濃厚次亜塩素酸水
溶液の希釈装置は、濃厚次亜塩素酸水溶液を貯留するた
めの濃厚溶液貯留槽２０と、濃厚次亜塩素酸水溶液と希
釈水とを混合するための混合希釈溶液槽４０とを備えて
いる。As shown in FIG. 1, this concentrated hypochlorous acid aqueous solution diluting apparatus comprises a concentrated solution storage tank 20 for storing the concentrated hypochlorous acid aqueous solution, a concentrated hypochlorous acid aqueous solution and dilution water. And a mixed dilute solution tank 40 for mixing.
【００１５】図２を併せて参照すると、濃厚溶液貯留槽
２０は、本体２１及び蓋体２２からなる密閉型の容器２
３を有している。容器２３は、例えば塩化ビニル樹脂
（ＰＶＣ）等の合成樹脂容器や、合成樹脂容器の外側を
アルミ等の金属容器で囲ったものや、金属容器の内側に
塩化ビニル樹脂等のライナーを設けたものなどが好まし
く使用される。特に塩化ビニル樹脂は、残留塩素量の保
持率が高いので、次亜塩素酸水溶液の貯留に適してい
る。蓋体２２には、弁１１を有する導入管１０が挿通さ
れ、その挿通部を溶接、接着等の手段で気密封止され
て、この導入管１０の開口が濃厚次亜塩素酸水溶液の導
入口２４をなしている。Referring also to FIG. 2, the concentrated solution storage tank 20 is a hermetically sealed container 2 having a main body 21 and a lid 22.
Have three. The container 23 is, for example, a synthetic resin container such as vinyl chloride resin (PVC), a synthetic resin container surrounded by a metal container such as aluminum, or a metal container provided with a vinyl chloride resin liner inside. Etc. are preferably used. In particular, vinyl chloride resin is suitable for storing an aqueous solution of hypochlorous acid because it has a high residual chlorine retention rate. The introduction pipe 10 having the valve 11 is inserted into the lid body 22, and the insertion portion is hermetically sealed by means such as welding and adhesion, and the opening of the introduction pipe 10 is an inlet for the concentrated aqueous solution of hypochlorous acid. Twenty-four.
【００１６】また、上記に関連して、本体２１の下部周
壁には、弁３１を有する供給管３０が挿通され、その挿
通部を同じく溶接、接着等の手段で気密封止されて、こ
の供給管３０の開口が濃厚次亜塩素酸水溶液の導出口２
５をなしている。Further, in relation to the above, the supply pipe 30 having the valve 31 is inserted through the lower peripheral wall of the main body 21, and the insertion portion is also hermetically sealed by means such as welding and adhesion, and this supply is performed. The opening of the pipe 30 is the outlet 2 for the concentrated aqueous solution of hypochlorous acid.
5 is done.
【００１７】更に、蓋体２２には、空気導入管２７が挿
通され、その挿通部を同じく溶接、接着等の手段で気密
封止されて、その開口が通気孔２６をなしている。そし
て、容器２３内には、可撓性の気密性のある袋体２８が
挿入され、その開口部は、上記空気導入管２７の外周に
溶着、接着等の手段で気密的に連結されている。したが
って、袋体２８の内部は、通気孔２６及び空気導出入管
２７を通して外気にのみ連通している。なお、ここで外
気に連通とは、大気に開放されていることに限らず、エ
アコンプレッサや、ガスタンク等に連結されている場合
も含む意味である。また、空気導出入管２７をエアコプ
レッサや、ガスタンク等に連結した場合には、その配管
の途中にリリーフ弁を設けることが好ましい。Further, an air introducing pipe 27 is inserted into the lid 22, and the inserted portion is hermetically sealed by means such as welding and bonding, and the opening thereof forms a vent hole 26. A flexible airtight bag body 28 is inserted into the container 23, and its opening is airtightly connected to the outer periphery of the air introducing pipe 27 by means such as welding or adhesion. . Therefore, the inside of the bag body 28 is communicated only with the outside air through the ventilation hole 26 and the air lead-in / out pipe 27. In addition, the term “communication to the outside air” is not limited to being open to the atmosphere, but also includes the case where the outside air is connected to an air compressor, a gas tank, or the like. When the air inlet / outlet pipe 27 is connected to an air compressor or a gas tank, it is preferable to provide a relief valve in the middle of the pipe.
【００１８】また、上記導入管１０、供給管３０、空気
導入管２７としては、塩化ビニル樹脂等の合成樹脂製の
管が好ましく使用されるが、金属の管の少なくとも内周
に合成樹脂のライナーやコーティング層を設けたもの等
であってもよい。Further, as the introduction pipe 10, the supply pipe 30, and the air introduction pipe 27, pipes made of synthetic resin such as vinyl chloride resin are preferably used, and a synthetic resin liner is provided at least on the inner periphery of the metal pipe. Alternatively, a coating layer or the like may be provided.
【００１９】更に、袋体２８としては、例えば、ポリエ
チレンフィルムと、ポリエチレンテレフタレートフィル
ムとをラミネートし、ポリエチレンフィルムを内側にし
て形成した袋などが好ましく使用される。その場合、空
気導出入管２７への連結は、袋体２８の開口部に空気導
出入管２７を挿入し、内側のポリエチレンフィルム層を
熱融着によって空気導出入管２７に溶着シールする方法
などが好ましく採用される。Further, as the bag body 28, for example, a bag formed by laminating a polyethylene film and a polyethylene terephthalate film with the polyethylene film inside is preferably used. In that case, the connection to the air lead-in / out pipe 27 is preferably performed by inserting the air lead-out / inlet pipe 27 into the opening of the bag 28 and sealing the inner polyethylene film layer to the air lead-in / out pipe 27 by heat fusion. To be done.
【００２０】再び図１を参照すると、図２では図示省略
されているが、濃厚溶液貯留槽２０には、濃厚次亜塩素
酸水溶液の水面の高さが所定値以下になったことを検出
するレベルセンサ２９が設けられている。レベルセンサ
２９により、濃厚次亜塩素酸水溶液の量が少なくなった
ことが検出されると、図示しないタンクローリー車など
で運ばれてくる濃厚次亜塩素酸水溶液を導入管１０を通
して弁１１を開いて導入するようになっている。Referring again to FIG. 1, although not shown in FIG. 2, it is detected in the concentrated solution storage tank 20 that the water level of the concentrated aqueous solution of hypochlorous acid is below a predetermined value. A level sensor 29 is provided. When the level sensor 29 detects that the amount of the concentrated hypochlorous acid aqueous solution has decreased, the concentrated hypochlorous acid aqueous solution carried by a tank truck or the like (not shown) is opened through the inlet pipe 10 to open the valve 11. It is supposed to be introduced.
【００２１】濃厚溶液貯留槽２０に弁３１を介して連結
された供給管３０は、ポンプ３２、逆止弁３３を介し
て、混合希釈溶液槽４０の下部に設けた濃厚次亜塩素酸
水溶液導入口４１に連結されている。また、混合希釈溶
液槽４０の上部には、希釈水導入口４２が設けられ、こ
れに希釈水供給管４３が、電磁弁４４を介して連結され
ている。希釈水としては、例えば水道水、井戸水等が用
いられる。A supply pipe 30 connected to the concentrated solution storage tank 20 via a valve 31 introduces a concentrated aqueous solution of hypochlorous acid provided under the mixed dilution solution tank 40 via a pump 32 and a check valve 33. It is connected to the mouth 41. Further, a dilution water introduction port 42 is provided in the upper part of the mixed dilution solution tank 40, and a dilution water supply pipe 43 is connected to this through a solenoid valve 44. As the diluting water, for example, tap water, well water or the like is used.
【００２２】混合希釈溶液槽４０には、次亜塩素酸水溶
液の上限及び下限位置を検出するレベルセンサ４５が設
けられている。また、混合希釈溶液槽４０の下部には、
ドレン管４６が弁４７を介して連結され、混合希釈溶液
槽４０の上部には、オーバーフロー管４８が連結され、
オーバーフロー管４８の先端は、ドレン管４６に連結さ
れている。したがって、弁４７を開けば、ドレン管４６
を通して混合希釈溶液槽４０内の次亜塩素酸水溶液を抜
き出すことができ、また、次亜塩素酸水溶液の水位が高
くなりすぎた場合には、オーバーフロー管４８及びドレ
ン管４６を通して次亜塩素酸水溶液が排出されるように
なっている。The mixed dilution solution tank 40 is provided with a level sensor 45 for detecting the upper and lower limit positions of the hypochlorous acid aqueous solution. Further, in the lower part of the mixed dilution solution tank 40,
A drain pipe 46 is connected via a valve 47, and an overflow pipe 48 is connected to the upper portion of the mixed dilute solution tank 40.
The tip of the overflow pipe 48 is connected to the drain pipe 46. Therefore, if the valve 47 is opened, the drain pipe 46
The hypochlorous acid aqueous solution in the mixed diluting solution tank 40 can be withdrawn through, and when the water level of the hypochlorous acid aqueous solution becomes too high, the hypochlorous acid aqueous solution is passed through the overflow pipe 48 and the drain pipe 46. Are to be discharged.
【００２３】混合希釈溶液槽４０の下部には、次亜塩素
酸水溶液導出口４９が設けられ、これに供給管５０が弁
５１を介して連結されている。供給管５０の配管経路に
は、ポンプ５２、電磁弁５３、逆止弁５４、アキューム
レータ５５、圧力センサ５６及び弁５７が設けられてい
る。アキュームレータ５５は、所定濃度に調製された次
亜塩素酸水溶液を一時貯留しておく槽からなる。A hypochlorous acid aqueous solution outlet 49 is provided in the lower portion of the mixed dilute solution tank 40, and a supply pipe 50 is connected to the outlet 49 via a valve 51. A pump 52, a solenoid valve 53, a check valve 54, an accumulator 55, a pressure sensor 56, and a valve 57 are provided in the piping path of the supply pipe 50. The accumulator 55 comprises a tank for temporarily storing the hypochlorous acid aqueous solution prepared to have a predetermined concentration.
【００２４】供給管５０のポンプ５２の先には、返送管
６０が分岐するように連結されている。返送管６０は、
電磁弁６１及び逆止弁６２を有している。また、供給管
５０と返送管６０とによって、混合希釈溶液槽４０内の
次亜塩素酸水溶液の一部を取出し、混合希釈溶液槽４０
内に返送する循環経路が構成されている。更に、この循
環経路に両端を連結され、循環経路を通る次亜塩素酸水
溶液の一部を取出して水質を検査するための取出管６３
が設けられている。この取出管６３の経路に弁６４、６
５、水質測定センサ６６、弁６７が順次設けられてい
る。水質測定センサ６６は、次亜塩素酸水溶液の塩素濃
度、ｐＨ等を測定する。A return pipe 60 is connected to the end of the pump 52 of the supply pipe 50 so as to branch. The return pipe 60 is
It has a solenoid valve 61 and a check valve 62. Further, a part of the hypochlorous acid aqueous solution in the mixed dilution solution tank 40 is taken out by the supply pipe 50 and the return pipe 60, and the mixed dilution solution tank 40 is discharged.
A circulation route is configured to be returned to the inside. Further, an extraction pipe 63 having both ends connected to this circulation path for extracting a part of the hypochlorous acid aqueous solution passing through the circulation path and inspecting the water quality.
Is provided. Valves 64 and 6 are provided in the path of the extraction pipe 63.
5, a water quality measuring sensor 66 and a valve 67 are sequentially provided. The water quality measuring sensor 66 measures the chlorine concentration, pH, etc. of the hypochlorous acid aqueous solution.
【００２５】なお、上記における供給管５０、ポンプ５
２、返送管６０、取出管６３、水質測定センサ６６等
が、本発明における攪拌手段に該当する。The above-mentioned supply pipe 50 and pump 5
2, the return pipe 60, the take-out pipe 63, the water quality measuring sensor 66, etc. correspond to the stirring means in the present invention.
【００２６】水質測定センサ６６で測定されたデータ
は、制御盤７０の表示パネル７１に表示されるようにな
っている。また、制御盤７０には、所望の塩素濃度、ｐ
Ｈ等を入力するための入力ボタン７２が設けられてい
る。水質測定センサ６６は、測定された塩素濃度、ｐＨ
等のデータを制御盤７０に送る。制御盤７０は、上記デ
ータを、予め設定された塩素濃度、ｐＨ等のデータと比
較して、設定値に近付くようにそれぞれの弁を開閉制御
し、所望の濃度に希釈された次亜塩素酸水溶液が得られ
るように自動制御するようになっている。The data measured by the water quality measuring sensor 66 is displayed on the display panel 71 of the control panel 70. Further, the control panel 70 has a desired chlorine concentration, p
An input button 72 for inputting H or the like is provided. The water quality measurement sensor 66 measures the measured chlorine concentration and pH.
Etc. is sent to the control panel 70. The control panel 70 compares the above-mentioned data with preset data of chlorine concentration, pH, etc., and controls the opening / closing of each valve so as to approach the set value, and hypochlorous acid diluted to a desired concentration. It is designed to be automatically controlled to obtain an aqueous solution.
【００２７】次に、上記希釈装置を用いて濃厚次亜塩素
酸水溶液を水で希釈する方法について説明する。まず、
濃厚溶液貯留槽２０内に濃厚次亜塩素酸水溶液Ａ１を導
入するに先立って、図３（ａ）に示すように、空気導出
入管２７から通気孔２６を通して空気等の気体を送入し
て袋体２８を濃厚溶液貯留槽２０の内壁いっぱいに当接
するように膨らませる。あるいは、濃厚次亜塩素酸水溶
液の導入口２４から内部の空気を抜いて減圧することに
より、袋体２８を濃厚溶液貯留槽２０の内壁いっぱいに
当接するように膨らませることもできる。Next, a method of diluting a concentrated aqueous solution of hypochlorous acid with water using the above diluting device will be described. First,
Prior to introducing the concentrated hypochlorous acid aqueous solution A1 into the concentrated solution storage tank 20, as shown in FIG. 3 (a), a gas such as air is fed from the air inlet / outlet pipe 27 through the vent hole 26 to form a bag. The body 28 is inflated so as to come into contact with the entire inner wall of the concentrated solution storage tank 20. Alternatively, the bag 28 can be inflated so as to come into contact with the inner wall of the concentrated solution storage tank 20 by removing air from the inlet 24 of the concentrated aqueous solution of hypochlorous acid to reduce the pressure.
【００２８】次に、図３（ｂ）に示すように、図示しな
いタンクローリー車などによって運ばれてきた濃厚次亜
塩素酸水溶液を、導入管１０から導入口２４を通して、
濃厚溶液貯留槽２０内に導入する。すると、袋体２８
は、空気導出入管２７から内部の空気を流出させなが
ら、導入された濃厚次亜塩素酸水溶液の分だけ萎む。Next, as shown in FIG. 3B, the concentrated hypochlorous acid aqueous solution carried by a tank truck or the like (not shown) is introduced from the introduction pipe 10 through the introduction port 24.
It is introduced into the concentrated solution storage tank 20. Then, the bag 28
Is deflated by the amount of the concentrated aqueous solution of hypochlorous acid introduced while letting out the internal air from the air inlet / outlet pipe 27.
【００２９】この状態で、弁３１を開き供給管３０を通
して、濃厚次亜塩素酸水溶液を取り出すと、再び図３
（ａ）に示すように、空気導出入管２７から通気孔２６
を通して空気等の気体が袋体２８内に送入され、袋体２
８が、流出した濃厚次亜塩素酸水溶液の体積分だけ膨ら
む。空気等の袋体２８内への送入は、空気導出入管２７
を大気に開放しておくことにより、大気圧によって自動
的になされるが、エアコンプレッサ等により強制的に空
気を送入してもよい。In this state, when the valve 31 is opened and the concentrated hypochlorous acid aqueous solution is taken out through the supply pipe 30, FIG.
As shown in (a), the air inlet / outlet pipe 27 is connected to the vent hole 26.
A gas such as air is sent into the bag body 28 through the bag body 2
8 swells by the volume of the concentrated aqueous hypochlorous acid solution that has flowed out. For introducing air or the like into the bag body 28, the air outlet / inlet pipe 27
Is automatically opened to the atmosphere by the atmospheric pressure, but the air may be forcibly fed in by an air compressor or the like.
【００３０】したがって、濃厚溶液貯留槽２０内の空間
において、濃厚次亜塩素酸水溶液Ａ１を除く部分の空間
は、袋体２８によってほとんど閉塞され、濃厚次亜塩素
酸水溶液Ａ１が直接接触する空気層の体積は極めて小さ
くなる。Therefore, in the space inside the concentrated solution storage tank 20, the space except for the concentrated aqueous solution of hypochlorous acid A1 is almost closed by the bag 28, and the air layer in direct contact with the concentrated aqueous solution of hypochlorous acid A1. Has a very small volume.
【００３１】図４は、水中に溶解させた塩素イオンの形
態がｐＨ変化に伴って変化する状態を示す図表である。
図４において、［Ｃｌ2 ］は、塩素の形態で溶解した濃
度を示し、［ＨＣｌＯ］は、次亜塩素酸の形態で溶解し
た濃度を示し、［ＣｌＯ- ］は、ＣｌＯ- の形態で溶解
した濃度を示している。なお、図４の水溶液の塩素濃度
は、６００ｐｐｍである。このように、次亜塩素酸は、
ｐＨ５前後、特にｐＨ３〜７の範囲で安定に存在し、ｐ
Ｈが低くなるほど分子状塩素が増大する。FIG. 4 is a chart showing a state in which the form of chlorine ions dissolved in water changes with pH change.
In FIG. 4, [Cl 2 ] indicates the concentration dissolved in the form of chlorine, [HClO] indicates the concentration dissolved in the form of hypochlorous acid, and [ClO − ] dissolves in the form of ClO −. The concentration is shown. The chlorine concentration of the aqueous solution of FIG. 4 is 600 ppm. In this way, hypochlorous acid
It exists stably around pH 5, especially in the range of pH 3 to 7,
As H decreases, molecular chlorine increases.
【００３２】図５は、常温において特定濃度の塩素含有
水溶液と平衡する気中塩素濃度とｐＨとの関係を示し、
図中ａは水溶液中の塩素イオン濃度が１Ｍの場合、ｂは
水溶液中の塩素イオン濃度が０．１Ｍの場合、ｃは水溶
液中の塩素イオン濃度が０．０１Ｍの場合、ｄは水溶液
中の塩素イオン濃度が０．００１Ｍの場合を示してい
る。このように、塩素含有水溶液と平衡する気中塩素濃
度は、水溶液のｐＨが低くなるほど、また、水溶液中の
塩素イオン濃度が高くなるほど高くなる。例えばｐＨ５
で０．１Ｍの塩素イオンを含有する次亜塩素酸水溶液と
平衡する気中塩素濃度は、約６００ｐｐｍとなる。FIG. 5 shows the relationship between the concentration of chlorine in the air and the pH in equilibrium with a chlorine-containing aqueous solution having a specific concentration at room temperature.
In the figure, a is the case where the chloride ion concentration in the aqueous solution is 1M, b is the case where the chloride ion concentration is 0.1M, c is the case where the chloride ion concentration is 0.01M, and d is the case where The case where the chlorine ion concentration is 0.001M is shown. As described above, the concentration of chlorine in the air that equilibrates with the chlorine-containing aqueous solution becomes higher as the pH of the aqueous solution becomes lower and the chlorine ion concentration in the aqueous solution becomes higher. PH 5 for example
Thus, the concentration of chlorine in the air that equilibrates with the hypochlorous acid aqueous solution containing 0.1 M of chlorine ion is about 600 ppm.
【００３３】したがって、濃厚溶液貯留槽２０に導入さ
れた濃厚次亜塩素酸水溶液Ａ１から発生する塩素は、濃
厚次亜塩素酸水溶液Ａ１が直接接触する空気層中の塩素
濃度が上記図５で示される平衡状態になるまで続く。例
えば、濃厚次亜塩素酸水溶液Ａ１の塩素イオン濃度が
０．１ＭでｐＨ５の場合には、上記空気層中の塩素濃度
が約６００ｐｐｍになるまで塩素が発生することにな
る。Therefore, the chlorine generated from the concentrated aqueous solution of hypochlorous acid A1 introduced into the concentrated solution storage tank 20 has a chlorine concentration in the air layer with which the concentrated aqueous solution of hypochlorous acid A1 is in direct contact, as shown in FIG. Continue until equilibrium is reached. For example, when the concentration of chlorine ions in the concentrated aqueous solution of hypochlorous acid A1 is 0.1 M and the pH is 5, chlorine is generated until the concentration of chlorine in the air layer reaches about 600 ppm.
【００３４】しかしながら、前述したように、本発明で
は、濃厚溶液貯留槽２０内の空間において、濃厚次亜塩
素酸水溶液Ａ１を除く部分の空間は、袋体２８によって
ほとんど閉塞されており、濃厚次亜塩素酸水溶液Ａ１が
直接接触する空気層の体積は極めて小さくなっているの
で、上記空気層中の塩素濃度は、わずかな量の塩素の発
生で平衡濃度となってしまい、それ以上の塩素発生が抑
制される。その結果、濃厚溶液貯留層２０内で発生する
塩素ガスの量を極めて少なくし、何らかの原因で該塩素
ガスが漏れたとしても、大気中に放出されたときには極
めて低濃度となるので、人体に与える危険性を全くなく
すことができる。However, as described above, in the present invention, the space in the concentrated solution storage tank 20 excluding the concentrated hypochlorous acid aqueous solution A1 is almost closed by the bag body 28, and Since the volume of the air layer in direct contact with the chlorous acid aqueous solution A1 is extremely small, the chlorine concentration in the air layer becomes an equilibrium concentration due to the generation of a slight amount of chlorine, and further chlorine generation is generated. Is suppressed. As a result, the amount of chlorine gas generated in the concentrated solution storage layer 20 is made extremely small, and even if the chlorine gas leaks for some reason, the concentration will be extremely low when it is released into the atmosphere, so it will be given to the human body. You can eliminate the danger altogether.
【００３５】こうして濃厚溶液貯留層２０に貯留された
濃厚次亜塩素酸水溶液は、供給管３０を通して混合希釈
溶液槽４０に導入される。また、希釈水導入管４３を通
して希釈水が混合希釈溶液槽４０に導入され、濃厚次亜
塩素酸水溶液が水と混合されて所定の濃度に希釈され
る。こうして希釈されて水溶液中の塩素イオン濃度が低
くなると、該水溶液と平衡する気中塩素濃度は著しく低
くなるため、希釈された次亜塩素酸水溶液から発生する
塩素ガスは極めて少なく、人体に対する危険性はなくな
る。The concentrated hypochlorous acid aqueous solution thus stored in the concentrated solution storage layer 20 is introduced into the mixed dilution solution tank 40 through the supply pipe 30. Further, the dilution water is introduced into the mixed dilution solution tank 40 through the dilution water introducing pipe 43, and the concentrated aqueous solution of hypochlorous acid is mixed with water to be diluted to a predetermined concentration. When the concentration of chlorine ions in the aqueous solution is reduced by dilution in this way, the concentration of chlorine in the air that equilibrates with the aqueous solution is significantly reduced, so the amount of chlorine gas generated from the diluted aqueous solution of hypochlorous acid is extremely small, which is dangerous to the human body. Disappears.
【００３６】なお、混合希釈溶液槽４０で濃厚次亜塩素
酸水溶液Ａ１と希釈水とを混合した水溶液は、供給管５
０、ポンプ５２、返送管６０等で構成される循環経路に
沿って循環することにより更に均一に混合され、所定濃
度に希釈された次亜塩素酸水溶液が形成される。このと
き、循環経路に併設した取出管６３に設けた水質測定セ
ンサ６６が、水溶液中の塩素濃度やｐＨを測定し、該塩
素濃度、ｐＨ等が設定値になっていない場合は、制御盤
７０から各弁に制御信号送り、濃厚次亜塩素酸水溶液や
希釈水の導入量等を制御して、目的とする濃度に調製さ
れた次亜塩素酸水溶液を得ることができる。The aqueous solution obtained by mixing the concentrated hypochlorous acid aqueous solution A1 and the diluting water in the mixed dilute solution tank 40 is supplied by the supply pipe 5.
0, a pump 52, a return pipe 60, and the like are circulated along a circulation path to form a hypochlorous acid aqueous solution which is more uniformly mixed and diluted to a predetermined concentration. At this time, the water quality measuring sensor 66 provided in the extraction pipe 63 provided in the circulation path measures the chlorine concentration or pH in the aqueous solution, and if the chlorine concentration, pH, etc. are not set values, the control panel 70 From the above, a control signal is sent to each valve to control the introduction amount of the concentrated hypochlorous acid aqueous solution or the diluting water and the like to obtain the hypochlorous acid aqueous solution adjusted to the target concentration.
【００３７】こうして調製された所定濃度の次亜塩素酸
水溶液は、弁５１、供給管５０、ポンプ５２、電磁弁５
３、逆止弁５４、弁５７を通って供給される。そして、
病院や食品工場等では、この次亜塩素酸水溶液を、例え
ば手洗い用、器具洗浄用の殺菌、洗浄水として利用する
ことができる。なお、アキュムレータ５５は、次亜塩素
酸水溶液を貯留しておき、混合希釈溶液層４０で希釈作
業中などの際に、次亜塩素酸水溶液を中断することなく
供給できるようにする。The hypochlorous acid aqueous solution having a predetermined concentration prepared in this manner is supplied with a valve 51, a supply pipe 50, a pump 52, and a solenoid valve 5.
3, through check valve 54, valve 57. And
In a hospital, a food factory, etc., this hypochlorous acid aqueous solution can be used as sterilizing water for hand washing, equipment washing, and washing water. The accumulator 55 stores the hypochlorous acid aqueous solution so that the hypochlorous acid aqueous solution can be supplied without interruption during the diluting operation in the mixed dilution solution layer 40.
【００３８】[0038]
【発明の効果】以上説明したように、本発明によれば、
濃厚溶液貯留槽において濃厚次亜塩素酸水溶液が直接接
する空気層をできるだけ少なくして、濃厚次亜塩素酸水
溶液から発生する塩素ガスの量を極めて微量にし、万一
塩素ガスが外部に漏れたとしても、人体に対して危険な
量となることを防止し、こうして貯留された濃厚次亜塩
素酸水溶液を必要量ずつ取り出して、混合希釈溶液槽で
水と混合して希釈することにより、人体に安全でかつ殺
菌作用がもたらされる適当な濃度に調製された次亜塩素
酸水溶液を供給することができる。したがって、病院、
食品工場等に設置して、手洗い用、器具洗浄用の殺菌、
洗浄水として利用することができる。As described above, according to the present invention,
In the concentrated solution storage tank, the air layer in direct contact with the concentrated hypochlorous acid aqueous solution should be reduced as much as possible, and the amount of chlorine gas generated from the concentrated hypochlorous acid aqueous solution should be extremely small. In order to prevent the human body from reaching a dangerous amount, the concentrated hypochlorous acid aqueous solution stored in this way is taken out in the required amount and mixed with water in a mixing and diluting solution tank to dilute the human body. It is possible to supply an aqueous hypochlorous acid solution prepared to an appropriate concentration that is safe and has a bactericidal action. Therefore, the hospital,
Installed in food factories etc., sterilized for hand washing, equipment washing,
It can be used as wash water.
【図１】本発明の一実施形態による濃厚次亜塩素酸水溶
液の希釈装置の全体を示す概略説明図である。FIG. 1 is a schematic explanatory diagram showing an entire apparatus for diluting a concentrated aqueous solution of hypochlorous acid according to an embodiment of the present invention.
【図２】同希釈装置で用いる濃厚溶液貯留槽の断面図で
ある。FIG. 2 is a sectional view of a concentrated solution storage tank used in the diluting device.
【図３】同濃厚溶液貯留槽の袋体の作用を示す説明図で
ある。FIG. 3 is an explanatory view showing the action of the bag body of the concentrated solution storage tank.
【図４】水中に溶解させた塩素イオンの形態がｐＨ変化
に伴って変化する状態を示す図表である。FIG. 4 is a chart showing a state in which the form of chloride ions dissolved in water changes with pH change.
【図５】常温において特定濃度の塩素含有水溶液と平衡
する気中塩素濃度とｐＨとの関係を示す図表である。FIG. 5 is a chart showing the relationship between the atmospheric chlorine concentration equilibrating with a chlorine-containing aqueous solution having a specific concentration at room temperature and pH.
１０…導入管 ２０…濃厚溶液貯留槽 ２３…容器 ２４…導入口 ２５…導出口 ２６…通気孔 ２７…空気導出入管 ２８…袋体 ３０…供給管 ３２…ポンプ ４０…混合希釈溶液槽 ４１…濃厚次亜塩素酸水溶液導入口 ４２…希釈水導入口 ４３…希釈水供給管 ４５…レベルスイッチ ５０…供給管 ５２…ポンプ ６０…返送管 ６６…水質測定センサ Ａ１…濃厚次亜塩素酸水溶液 Ａ２…次亜塩素酸水溶液 Ｂ…希釈水 10 ... Introduction tube 20 ... Concentrated solution storage tank 23 ... Container 24 ... Inlet 25 ... Outlet 26 ... Vent 27 ... Air lead-out inlet pipe 28 ... Bag 30 ... Supply pipe 32 ... Pump 40 ... Mixed diluted solution tank 41 ... Concentrated hypochlorous acid aqueous solution inlet 42 ... Dilution water inlet 43 ... Dilution water supply pipe 45 ... Level switch 50 ... Supply pipe 52 ... Pump 60 ... Return pipe 66 ... Water quality measurement sensor A1 ... Concentrated aqueous solution of hypochlorous acid A2 ... hypochlorous acid aqueous solution B ... Dilution water
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Claims (2)
して所定濃度の次亜塩素酸水溶液を調製するための希釈
装置において、 濃厚次亜塩素酸水溶液の導出入口を有する密閉型の耐腐
食性の容器内に、可撓性の気密な袋体を挿入し、該袋体
の開口を前記容器に設けた通気孔に連結して該袋体の内
部を外気に連通させてなる濃厚溶液貯留槽と、 前記濃厚溶液貯留槽から供給される濃厚次亜塩素酸水溶
液を導入するための濃厚次亜塩素酸水溶液導入口と、希
釈水を導入するための希釈水導入口と、濃厚次亜塩素酸
水溶液と希釈水とを混合する撹拌手段と、所定濃度に希
釈された次亜塩素酸水溶液を取出すための次亜塩素酸水
溶液導出口とを有する混合希釈溶液槽とを備えているこ
とを特徴とする濃厚次亜塩素酸水溶液の希釈装置。1. A diluting device for mixing a concentrated aqueous solution of hypochlorous acid and dilution water to prepare an aqueous solution of hypochlorous acid having a predetermined concentration, which is of a closed type having an outlet for the concentrated aqueous solution of hypochlorous acid. A flexible and airtight bag body is inserted into a corrosion-resistant container, and an opening of the bag body is connected to a ventilation hole provided in the container so that the inside of the bag body communicates with the outside air. A solution storage tank, a concentrated hypochlorous acid aqueous solution inlet for introducing the concentrated hypochlorous acid aqueous solution supplied from the concentrated solution storage tank, a dilution water inlet for introducing dilution water, and a concentrated next A mixing and diluting solution tank having a stirring means for mixing the chlorous acid aqueous solution and the diluting water and a hypochlorous acid aqueous solution outlet for taking out the hypochlorous acid aqueous solution diluted to a predetermined concentration is provided. A device for diluting concentrated aqueous solution of hypochlorous acid.
導出口に連結された供給管と、この供給管から分岐して
前記混合希釈溶液槽に連結された返送管と、前記供給管
の経路に設けたポンプと、前記供給管及び前記返送管を
通る循環経路に設けた水質測定センサとで構成されてい
る請求項１記載の濃厚次亜塩素酸水溶液の希釈装置。2. The stirring means comprises a supply pipe connected to the hypochlorous acid aqueous solution outlet, a return pipe branched from the supply pipe and connected to the mixed dilution solution tank, and a supply pipe of the supply pipe. The concentrated hypochlorous acid aqueous solution diluting device according to claim 1, comprising a pump provided in the path and a water quality measuring sensor provided in a circulation path passing through the supply pipe and the return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24458397A JP3479436B2 (en) | 1997-08-26 | 1997-08-26 | Dilution device for concentrated hypochlorous acid aqueous solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24458397A JP3479436B2 (en) | 1997-08-26 | 1997-08-26 | Dilution device for concentrated hypochlorous acid aqueous solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1171102A JPH1171102A (en) | 1999-03-16 |
| JP3479436B2 true JP3479436B2 (en) | 2003-12-15 |
Family
ID=17120888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24458397A Expired - Fee Related JP3479436B2 (en) | 1997-08-26 | 1997-08-26 | Dilution device for concentrated hypochlorous acid aqueous solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3479436B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102164646A (en) * | 2008-07-29 | 2011-08-24 | 山崎明彦 | Treatment device and treatment bag |
-
1997
- 1997-08-26 JP JP24458397A patent/JP3479436B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1171102A (en) | 1999-03-16 |
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