JP3499917B2 - Bathtub cleaning method - Google Patents
Bathtub cleaning methodInfo
- Publication number
- JP3499917B2 JP3499917B2 JP12581394A JP12581394A JP3499917B2 JP 3499917 B2 JP3499917 B2 JP 3499917B2 JP 12581394 A JP12581394 A JP 12581394A JP 12581394 A JP12581394 A JP 12581394A JP 3499917 B2 JP3499917 B2 JP 3499917B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- cleaning
- bathtub
- coagulation
- tank
- 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 - Fee Related
Links
Landscapes
- Filtration Of Liquid (AREA)
- Bathtub Accessories (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は浴槽湯の処理方法及び処
理装置に係り、特に浴槽内の湯を濾過等の清浄化処理を
行い絶えず清浄に保つようにする浴槽湯の清浄化方法及
び清浄化装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for treating hot water in a bathtub, and more particularly to a method and a device for purifying hot water in a bathtub, which keeps the hot water in the bathtub clean by filtration or the like. The present invention relates to a chemical conversion device.
【０００２】[0002]
【従来技術】最近、浴槽内の湯を循環ポンプで吸い上げ
濾過装置で汚れを濾過し、ヒータで加熱し、さらにはオ
ゾンで殺菌して、絶えず適温で清浄な状態に保ち、２４
時間いつでも入浴できるようにした、いわゆる２４時間
風呂装置としての浴槽湯清浄化装置が開発され広く利用
されるようになった。2. Description of the Related Art Recently, hot water in a bathtub is sucked up by a circulation pump, dirt is filtered by a filter device, heated by a heater, and further sterilized by ozone to constantly maintain a proper temperature and a clean state.
A bath water purifying device, which is a so-called 24-hour bath device, which allows a user to take a bath anytime, has been developed and widely used.
【０００３】この浴槽湯清浄化装置は、図６に示すよう
な装置が多く利用されており、この装置では、浴槽１内
の湯２を循環ポンプ６の作用で吸湯管３から各種清浄化
処理機器をまとめて収納した装置本体４に吸い上げて清
浄化処理をし、清浄化処理の終わった湯は噴湯管９から
再び浴槽１内に噴出させるように構成している。[0003] As this bath water purifying device, a device as shown in Fig. 6 is often used. In this device, the hot water 2 in the bath 1 is cleaned from the hot water pipe 3 by the action of the circulation pump 6. The apparatus main body 4 accommodating the processing equipment is sucked up to perform a cleaning process, and the hot water after the cleaning process is ejected from the spout tube 9 into the bath 1 again.
【０００４】吸湯管３の先端には湯中の大きな汚れを取
り除くためのスポンジを濾材とするプレフイルター１０
が取り付けられており、噴湯装置４の先端には清浄化処
理の終わった湯をエジエクタ部で湯の流速を速めて形成
された負圧により吸入した空気とともにジエツト流とし
て噴出させるためのジエツトノズル１１が配備されてい
る。A prefilter 10 is provided at the tip of the hot water pipe 3 with a sponge as a filter medium for removing large dirt in the hot water.
Is attached to the tip of the spouting device 4, and a jet nozzle 11 for ejecting the purified hot water as a jet flow together with the air sucked by the negative pressure formed by accelerating the flow velocity of the hot water in the ejector section. It has been deployed.
【０００５】装置本体５には、活性炭、麦飯石、ゼオラ
イト等の各種粒状濾材が充填される濾過タンク５、湯を
適温に保持する保温用のヒータ７、湯を強制循環するた
めの循環ポンプ６等が連結管で直列に連結しされて配備
され、前記吸湯管３の一端が濾過タンク５の入湯口に、
噴湯管９の一端が循環ポンプ７の吐出口にそれぞれ接続
して浴槽１内の湯２に対する直列の清浄化循環路を形成
している。The apparatus main body 5 is provided with a filtration tank 5 filled with various granular filter media such as activated carbon, barley stone, zeolite, etc., a heater 7 for keeping the hot water at an appropriate temperature, and a circulation pump 6 for forcedly circulating the hot water. Etc. are connected and connected in series by a connecting pipe, and one end of the hot water suction pipe 3 is connected to the hot water inlet of the filtration tank 5.
One end of the spout tube 9 is connected to the discharge port of the circulation pump 7 to form a series cleaning circulation path for the hot water 2 in the bath 1.
【０００６】また装置本体４は、前記清浄化循環路に濾
過能力を高めるため濾過装置として粒状濾材を充填した
濾過タンク５に加えて糸巻きフイルターを装填した濾過
装置も配備し、二重濾過方式とする場合もある。In addition, the apparatus main body 4 is provided with a filtration device equipped with a wound filter in addition to a filtration tank 5 filled with granular filter material as a filtration device in order to enhance the filtration capacity in the cleaning circulation path, and a double filtration system is provided. In some cases.
【０００７】噴湯管９の先端に取り付けられたジエツト
ノズル１１には、吸気管１２が接続し、さらに、この吸
気管１２から空気を吸い込むため、湯の流速を速めて負
圧を形成するエジエクタ部が設けられている。An intake pipe 12 is connected to a jet nozzle 11 attached to the tip of the spout pipe 9, and since air is sucked from the intake pipe 12, an ejector portion that accelerates the flow velocity of the hot water to form a negative pressure is provided. It is provided.
【０００８】また吸気管１２には、吸い込まれた空気を
オゾン化し湯を殺菌するためのオゾン空気を形成するオ
ゾナイザ８が取り付けてある。Further, the intake pipe 12 is provided with an ozonizer 8 for forming ozone air to ozoneize the sucked air and sterilize the hot water.
【０００９】前記装置では、浴槽１内の湯２は、循環ポ
ンプ６の作動によりプレフイルター１０で大きな汚れを
取り除かれつつ吸湯管３から吸い上げられて装置本体４
に入り、先ず濾過タンク５で濾過され、続いてヒータ７
で保温された後、噴湯管９の先端に取り付けられたジエ
ツトノズルから浴槽１に再び噴出される。In the above apparatus, the hot water 2 in the bathtub 1 is sucked up from the hot water pipe 3 while the dirt is removed by the prefilter 10 by the operation of the circulation pump 6 and the apparatus main body 4
First, it is filtered in the filtration tank 5, and then the heater 7
After being kept warm by, it is jetted again into the bathtub 1 from the jet nozzle attached to the tip of the spout tube 9.
【００１０】この際、吸気管１２には、吸気口部に設け
た電磁弁１３が開いていると空気が吸い込まれ、ジエツ
トノズル１１からは空気が混入したジエツト流が浴槽１
内に噴出されいわゆる泡風呂となり、さらにオゾナイザ
８が作動していると吸い込まれた空気がオゾン化され、
浴槽１内の湯２がオゾン殺菌される。At this time, air is sucked into the intake pipe 12 when the solenoid valve 13 provided at the intake port is open, and a jet flow mixed with air is jetted from the jet nozzle 11 into the bathtub 1.
It becomes a so-called bubble bath that is jetted into the interior, and when the ozonizer 8 is operating, the air that is drawn in is ozoned,
The hot water 2 in the bathtub 1 is sterilized by ozone.
【００１１】[0011]
【発明が解決しようとする課題】しかしながら前記した
ような装置を用いての従来の浴槽湯の清浄化方法では、
湯中に分散したコロイド粒子状の汚れは濾過できないい
ので、このような汚れが生ずると湯が白濁してしまう欠
点があり、特に濾過装置の濾材が目詰まりしていない運
転の初期や濾材を洗浄したり交換したりした直後は白濁
が生じ易かった。However, in the conventional method for cleaning hot water in the bathtub using the apparatus as described above,
Since it is not possible to filter the colloidal particle-like dirt dispersed in hot water, there is a disadvantage that the hot water becomes cloudy when such dirt occurs. Immediately after washing or replacement, cloudiness was likely to occur.
【００１２】浴槽湯の汚れは、砂、泥、毛、垢といった
一般的な物質だけでなく、湯中に溶け込んだ石鹸、化粧
品、塗り薬といった身体への付着物、身体からの分泌
物、或いは水道水中の不溶解物といったような種々の物
質によって作られており、その大きさ及び性質は様々で
ある。Dirt in the bath water is not limited to general substances such as sand, mud, hair, and dirt, but also substances adhering to the body such as soap, cosmetics, and topical medicines dissolved in the water, secretions from the body, or tap water. It is made by a variety of materials, such as insolubles in water, which vary in size and nature.
【００１３】この内の粒径１ミクロン以上の大きな汚れ
は、プレフイルターの濾材であるスポンジ、或いは濾過
タンクに充填された活性石、活性炭、ゼオライト等の粒
状濾材或いは糸巻きフイルターの濾過能力ににより濾過
でき、また粒径０．００１ミクロン以下の極めて微細な
汚れや溶解している汚れは、濾過タンクに充填された粒
状濾材の吸着力やイオン交換能力等によって取り除かれ
る。Large contaminants having a particle size of 1 micron or more are filtered by the sponge which is the filter material of the prefilter, or the granular filter material such as activated stone, activated carbon, zeolite, etc., which is filled in the filter tank, or the filtering ability of the wound filter. Extremely fine dirt having a particle size of 0.001 micron or less or dissolved dirt can be removed by the adsorption power or ion exchange capacity of the granular filter medium filled in the filtration tank.
【００１４】しかしながら従来の装置では、前記したよ
うに湯を白濁させる原因となる不溶解成分が凝集して作
った粒径０．００１〜１ミクロンのコロイド粒子状の汚
れに対しては濾過能力がなかった。However, the conventional apparatus has a filtering capability for colloidal particle-like dirt having a particle size of 0.001 to 1 micron, which is formed by agglomeration of insoluble components causing clouding of hot water as described above. There wasn't.
【００１５】これは濾過装置は、コロイド粒子状の汚れ
を取り除けるような目の細かな精密濾材を用いると、濾
材がすぐ目詰まりしその都度装置を止めて高価な濾材を
交換をしなければならなくなり、これには手間と費用が
沢山掛かってメンテイナンスが大変であり、また湯の流
れに対して大きな抵抗が与えられので、循環する湯の量
が減り装置の清浄化の能力が落ちてしまう等の種々の問
題が生ずるので、目の粗い通常濾材しか利用できないか
らである。This is because the filter device uses a fine filter medium having fine meshes capable of removing dirt in the form of colloidal particles, and the filter medium is immediately clogged, and the filter device must be stopped and the expensive filter medium must be replaced each time. It is difficult to maintain because it takes a lot of time and money, and because it gives a great resistance to the flow of hot water, the amount of circulating hot water is reduced and the cleaning ability of the device is reduced. This is because only various coarse filter media can be used because various problems such as the above occur.
【００１６】濾過装置に目の粗い通常濾材を用いた場合
は、コロイド粒子状の汚れは、装置を設置した直後や濾
材を洗浄したり交換したりして濾材が目詰まりしていな
い状態では全く濾過できず、濾材に汚れが付着してある
程度目詰まりすして濾過できるようになるまでは湯が白
濁するのを我慢するか湯を交換をしなければならなかっ
た。When a coarse filter medium is used in the filtration device, the colloidal particle-like dirt is not generated immediately after the device is installed or when the filter medium is not clogged due to washing or replacement. Until the filtration could not be performed and the filter material became soiled and clogged to some extent and the filtration became possible, it was necessary to either endure the cloudiness of the hot water or replace the hot water.
【００１７】本発明は、前記したような従来技術の欠点
を解消し、コロイド粒子状の汚れを効果的に取り除ける
ような浴槽湯の清浄化方法及び清浄化装置を提供するこ
とを目的とする。An object of the present invention is to solve the above-mentioned drawbacks of the prior art and to provide a cleaning method and a cleaning apparatus for bath water which can effectively remove colloidal particles.
【００１８】[0018]
【課題を解決するための手段】すなわち本発明は、浴槽
内の湯を循環ポンプにより汲み上げ各種清浄化装置の配
備された循環路を強制的に循環させ、濾過装置での濾
過、加熱装置での加熱、殺菌装置による殺菌等の各種の
清浄化処理を行う浴槽湯の清浄化方法において、沈降性
粉末の表面に凝集剤を被覆した凝集沈澱剤を浴槽湯の循
環路中に添加し、前記濾過装置で捕捉されない汚れを浴
槽湯の循環路中で凝集して沈澱させて捕捉処理すること
を特徴とする浴槽湯の清浄化方法により課題を解決し
た。また、本発明は、浴槽内の湯を循環ポンプにより汲
み上げ各種清浄化装置の配備された循環路を強制的に循
環させ、濾過装置での濾過、加熱装置での加熱、殺菌装
置による殺菌等の各種の清浄化処理を行う浴槽湯の清浄
化方法において、沈降性粉末の表面に凝集剤を被覆した
凝集沈澱剤を浴槽湯の循環路中に添加しコロイド質の汚
れを浴槽湯の循環路中で凝集沈澱処理することを特徴と
する浴槽湯の清浄化方法により課題を解決した。That is, according to the present invention, hot water in a bathtub is pumped by a circulation pump to forcibly circulate in a circulation path provided with various cleaning devices, and a filtration device and a heating device are used. In a method of cleaning bath water that performs various cleaning treatments such as heating and sterilization with a sterilizer, a flocculating precipitant in which the surface of a settling powder is coated with a flocculant is added to the circulation route of the bath water, and the filtration is performed. The problem has been solved by a method for cleaning bathtub hot water, which is characterized in that dirt that is not captured by the apparatus is collected and treated by aggregating and precipitating in the circulation path of the bathtub hot water. Further, the present invention, the hot water in the bathtub is pumped by a circulation pump to forcibly circulate in a circulation path provided with various cleaning devices, filtration by a filtration device, heating by a heating device, sterilization by a sterilization device, etc. In the method of cleaning bath water using various cleaning treatments, a flocculating precipitant in which the surface of a settling powder is coated with a coagulant is added to the circulation route of the bath water to collect colloidal dirt in the circulation route of the bath water. The problem was solved by a cleaning method for bath water, which is characterized by coagulating and precipitating with.
【００１９】 また本発明は、前記凝集沈澱剤が、陽イ
オン性高分子電解質を表面に被覆した沈降性粉末を主体
とするものである浴槽湯の清浄化方法により課題を解決
した。また、前記凝集沈澱処理は凝集沈殿処理の指令に
より所定の時間沈殿処理するようにした浴槽湯の清浄化
方法により課題を解決した。In addition, the present invention has solved the problem by a method for cleaning bath water in which the coagulating sedimentation agent is mainly composed of a sedimentation powder having a surface coated with a cationic polymer electrolyte. Further, the coagulation-sedimentation treatment has solved the problem by a method of cleaning the bath water so that the coagulation-sedimentation treatment is carried out for a predetermined time according to a coagulation-sedimentation processing command.
【００２０】[0020]
【発明の作用】本発明は以上のように構成され、凝集剤
を沈降性粉末の表面に被覆した凝集沈澱剤でコロイド質
の汚れの凝集沈澱処理をするので、湯中に分散している
コロイド質の汚れは、凝集沈澱剤の表面で凝集してフロ
ツク化された後沈降性を持つ凝集沈澱剤と一緒に素早く
沈降し、凝集沈澱処理の処理時間が短くなるとと同時
に、この沈澱を濾過装置で取り除いて容易に浴槽湯を清
浄化できるようになる。The present invention is constructed as described above, and since the coagulation-precipitation agent in which the surface of the settling powder is coated with the coagulation agent is used for the coagulation-sedimentation treatment of colloidal dirt, the colloid dispersed in hot water is used. The quality stains are flocculated on the surface of the flocculating precipitant and are flocculated, and then quickly settle together with the flocculating precipitant having a settling property, and the treatment time of the flocculating and precipitating process is shortened, and at the same time, this precipitate is filtered. The bath water can be easily cleaned by removing it with.
【００２１】またコロイド質の汚れは一般に負に帯電し
ているので、凝集沈澱剤を陽イオン性高分子電解質を表
面に被覆した沈降性粉末を主体とするものとすると、電
荷が中和されて凝集し易くなり、さらにこの沈降性粉末
を多孔質とすると、凝集沈澱剤の表面積が大きくなって
中和の面積が大きくなり、また吸着作用も生ずるのでコ
ロイド質の汚れは一層凝集沈澱し易くなる。Further, since colloidal stains are generally negatively charged, if the aggregating / precipitating agent is mainly composed of a sedimentable powder having a surface coated with a cationic polyelectrolyte, the charge is neutralized. If the sedimentable powder is made porous, the surface area of the aggregating and precipitating agent becomes large and the area of neutralization becomes large, and the adsorption action also occurs, so that the colloidal dirt is more likely to agglomerate and precipitate. .
【００２２】また凝集沈澱剤での凝集沈澱処理を浴槽湯
の循環管路の途中に設けた凝集沈澱タンクを利用して行
うと、コロイド質の汚れが凝集沈澱するためにある程度
の時間が採れるので効果的に凝集沈澱処理ができる。When the coagulation-sedimentation treatment with the coagulation-sedimentation agent is carried out by using the coagulation-sedimentation tank provided in the circulation path of the bath water, a certain amount of time is required for the colloidal dirt to coagulate-sediment. Coagulation and precipitation treatment can be effectively performed.
【００２３】さらに凝集沈澱タンクとして遠心分離タン
クを利用すると、遠心力の作用で凝集沈澱が効果的に行
えると同時に、凝集沈澱剤と共にフロツク化されたコロ
イド質の汚れは湯中で奇麗に分離されているので、後の
濾過装置による濾過で容易に取り除ける。Further, when a centrifugal separation tank is used as the coagulation-sedimentation tank, the coagulation-precipitation can be effectively carried out by the action of centrifugal force, and at the same time, the flocculated dirt which is flocculated with the coagulation-sedimentation agent is neatly separated in hot water. Therefore, it can be easily removed by subsequent filtration with a filtration device.
【００２４】[0024]
【実施例】次に本発明の実施例を図面に基づいて説明す
る。Embodiments of the present invention will now be described with reference to the drawings.
【００２５】まず図１に本発明の清浄化装置の基本ブロ
ツク図が示してあるのでこれに基づいて基本的構成を説
明するが、従来例と同一の構成要素には同一の符号が付
してあるのでこれ等の説明は省略する。First, FIG. 1 shows a basic block diagram of the cleaning apparatus of the present invention. The basic structure will be described based on this. The same components as those in the conventional example are designated by the same reference numerals. Since they are present, their description will be omitted.
【００２６】図１において、１４が湯の循環路に配備さ
れた凝集沈澱タンクであり、この凝集沈澱タンク１４と
しては遠心分離モータ１６により駆動される遠心分離タ
ンク１５を配備するのが、遠心力を利用して湯中のコロ
イド質の汚れを効果的に凝集沈澱剤表面に凝集させフロ
ツク化させ、凝集沈澱剤とともに沈澱として容易に分離
するために好ましい。In FIG. 1, reference numeral 14 denotes a coagulating sedimentation tank provided in a circulation path of hot water. As the coagulating sedimentation tank 14, a centrifugal separation tank 15 driven by a centrifugal separation motor 16 is provided to provide centrifugal force. Is preferable because it effectively flocculates the colloidal stains in hot water on the surface of the flocculating and precipitating agent to form flocs, and easily separates as a precipitate together with the flocculating and precipitating agent.
【００２７】１７は凝集沈澱剤を収納する凝集沈澱剤タ
クであり、この凝集沈澱剤タク１７と凝集沈澱タンク１
４とが途中に圧送ポンプ１９を配備した凝集沈澱剤供給
管１８で接続されている。Reference numeral 17 is a flocculating / precipitating agent tank containing a flocculating / precipitating agent. The flocculating / precipitating agent tank 17 and the flocculating / precipitating tank 1
4 is connected by a flocculating and precipitating agent supply pipe 18 provided with a pressure pump 19 on the way.
【００２８】なお凝集沈澱剤タンク１４を循環ポンプ６
の上流に配備した場合には、凝集沈澱剤タンク１７に収
納された沈澱剤は、圧送ポンプ１９を利用しないでエジ
エクタ部での負圧を利用して凝集沈澱タンク１４に供給
できる。The flocculating precipitant tank 14 is provided with a circulation pump 6
When it is installed upstream, the precipitant contained in the flocculating and precipitating agent tank 17 can be supplied to the flocculating and precipitating tank 14 by utilizing the negative pressure in the ejector section without using the pressure pump 19.
【００２９】また凝集沈澱剤タンク１７を吸湯管３に供
給管１８を接続して負圧を利用して直接湯中に凝集沈澱
剤を混入することも可能である。It is also possible to connect the coagulant-precipitant tank 17 to the hot water pipe 3 and the supply pipe 18 to directly mix the coagulant-precipitant into the hot water by utilizing a negative pressure.
【００３０】次に本発明で利用する凝集沈澱剤について
説明する。Next, the flocculating and precipitating agent used in the present invention will be described.
【００３１】ここで凝集沈澱剤の基となる沈降性粉末と
は、活性炭、ゼオライト、アルミナ、ガラスビーズ、け
い砂、カオリン、クリンカー、その他の鉱物質又はクレ
イ質粉末等であり、水に不溶性で比重１以上で沈降性を
持ち、かつ粒径１〜１０ミクロン程度で濾過し易い大き
さの粉末なら如何なる粉末でも良い。The settling powder which is the base of the coagulant settling agent is activated carbon, zeolite, alumina, glass beads, silica sand, kaolin, clinker, other mineral substances or clay-like powder and is insoluble in water. Any powder may be used as long as it has a specific gravity of 1 or more, has a sedimentation property, and has a particle size of about 1 to 10 μm and a size that facilitates filtration.
【００３２】特に粉末が多孔質であると、表面積が大き
くなって凝集剤を表面に被覆すると凝集面積が大きくな
り、同時に吸着性も持っているのでコロイド質の汚れを
凝集沈澱させるのに好都合である。In particular, when the powder is porous, the surface area becomes large, and when the surface is coated with the aggregating agent, the aggregating area also becomes large, and at the same time, it has adsorptivity, which is convenient for aggregating and depositing colloidal stains. is there.
【００３３】前記したような粉末の表面を被覆する凝集
剤としては、硫酸アルミニウム、硫酸第一鉄、塩化第二
鉄、硫酸第二鉄、アルミン酸ナトリウム等の無機系物
質、及び、ポリアミド類又はポリアミン類、ニカワ、ゼ
ラチン、澱粉等の合成又は天然の有機系高分子物質が利
用される。As the aggregating agent for coating the surface of the powder as described above, inorganic substances such as aluminum sulfate, ferrous sulfate, ferric chloride, ferric sulfate and sodium aluminate, and polyamides or Synthetic or natural organic polymeric substances such as polyamines, glue, gelatin, starch and the like are used.
【００３４】特に、ポリエチルポリアミン、ポリエチレ
ンイミン、ポリアミド・エピクロルヒドリン、ポリアリ
ルアミン、陽イオン変成澱粉等の合成又は天然の陽イオ
ン性高分子電解質を凝集剤として用いると、一般に陰イ
オン性を持つ湯中に分散したコロイド質の汚れは電荷が
中和されて凝集沈澱し易くなり効果的である。In particular, when a synthetic or natural cationic polyelectrolyte such as polyethylpolyamine, polyethyleneimine, polyamide epichlorohydrin, polyallylamine, and cationic modified starch is used as an aggregating agent, it is generally anionic in hot water. It is effective that the colloidal stains dispersed in are neutralized in charge and easily aggregate and precipitate.
【００３５】したかって、凝集沈澱剤としては粒径１〜
１０ミクロン程度の多孔質の沈降性粉末の表面にポリエ
チルポリアミンのような陽イオン性高分子電解質を被覆
したものを主体として用いるが好ましい。Accordingly, the coagulant / precipitating agent has a particle size of 1 to
It is preferable to use a porous sedimentary powder having a size of about 10 microns coated with a cationic polyelectrolyte such as polyethylpolyamine as a main component.
【００３６】２０は制御装置であり、これにより装置全
体が制御されるが、特に湯中に分散したコロイド質の汚
れを凝集沈澱処理により取り除くために、凝集沈澱剤タ
ンク１７から凝集沈澱剤を遠心分離タンクに１５送る圧
送ポンプ１９の作動及び遠心分離タンク１５を駆動する
遠心分離モータ１６の作動をも制御する。Reference numeral 20 denotes a control device, which controls the entire device. In particular, in order to remove the colloidal dirt dispersed in hot water by the coagulation-sedimentation treatment, the coagulation-sedimentation agent is centrifuged from the coagulation-sedimentation agent tank 17. It also controls the operation of the pressure feed pump 19 that feeds 15 to the separation tank and the operation of the centrifugal separation motor 16 that drives the centrifugal separation tank 15.
【００３７】２１は濁度センサであり、これは例えば発
光素子と受光素子との組み合わせで湯の汚れ具合として
の濁度を光学的に検知するセンサーである。Reference numeral 21 is a turbidity sensor, which is a sensor for optically detecting the turbidity as the degree of contamination of the hot water, for example, by combining a light emitting element and a light receiving element.
【００３８】したがって、濁度センサ２１を例えば浴槽
１に配備しておいて湯の汚れ具合を検知していれば、こ
の濁度センサ２１による濁度の検知にに基づいて制御装
置２０が圧送ポンプ１９及び遠心分離モータ１６の作動
を制御し湯中に分散したコロイド質の汚れを取り除くた
めの凝集沈澱処理を自動的に行えるようになる。Therefore, if the turbidity sensor 21 is provided in the bathtub 1 and the degree of contamination of the hot water is detected, the controller 20 detects the turbidity by the turbidity sensor 21 and detects the turbidity. By controlling the operation of the centrifugal separator 19 and the centrifuge motor 16, it is possible to automatically perform the coagulating sedimentation treatment for removing the colloidal dirt dispersed in the hot water.
【００３９】次に、図２の制御ブロツク図に基づいて制
御装置２０の凝集沈澱処理をするための制御について説
明する。Next, the control for the coagulation-sedimentation processing of the control device 20 will be explained based on the control block diagram of FIG.
【００４０】制御装置２０は基本的には中央演算処理装
置とてのＣＰＵ２２、制御のプログラムを記憶したプロ
グラムＲＯＭ２３、及び演算処理のためデータを一時的
に記憶するＲＡＭ２４からなるマイクロコンピユータで
ある。The control device 20 is basically a microcomputer having a CPU 22 as a central processing unit, a program ROM 23 storing a control program, and a RAM 24 temporarily storing data for arithmetic processing.
【００４１】２５は凝集沈澱処理の条件を設定するため
の凝集沈澱条件設定キーであり、この凝集沈澱条件設定
キー２５には、凝集沈澱処理を手動で設定するか自動で
設定するかを切り換える自動／手動キーや、手動の場合
の凝集沈澱剤の添加量、凝集沈澱の処理時間、遠心分離
の速度等の凝集沈澱処理の条件をを決める凝集沈澱剤量
設定キー、凝集沈澱処理時間設定キー、遠心分離速度設
定キー等が配備されている。Reference numeral 25 denotes an aggregation-precipitation condition setting key for setting the conditions of the aggregation-precipitation process. The aggregation-precipitation condition setting key 25 is an automatic switch for switching between manual setting and automatic setting of the aggregation-precipitation process. / Manual key, agglomeration-precipitation agent amount setting key, aggregation-precipitation processing time setting key that determines the conditions of aggregation-precipitation treatment such as the amount of addition of aggregation-precipitation agent in the case of manual operation, aggregation-precipitation processing time, centrifugation speed, etc. A centrifuge speed setting key etc. are provided.
【００４２】さらに凝集沈澱条件設定キー２５には、凝
集沈澱処理を自動で行うよう設定した場合に、処理の間
隔、凝集沈澱剤の添加量、凝集沈澱の処理時間、遠心分
離の速度等の凝集沈澱処理の条件を湯の汚れ具合により
定めるために湯の汚れ度を大、中、小等で設定する湯汚
れ度設定キー、或いは入浴人数により定めるための一日
の入浴人数を設定する入浴人数設定キー等が配備されて
いる。Further, when the aggregation / precipitation condition setting key 25 is set to automatically perform the aggregation / precipitation treatment, the aggregation of the treatment interval, the addition amount of the aggregation / precipitation agent, the treatment time of the aggregation / precipitation, the centrifugation speed, etc. To set the condition of the precipitation treatment according to how dirty the hot water is, set the degree of hot water stain to large, medium, small, etc., or set the number of bathers per day to determine the number of baths per day by the number of bathers Setting keys etc. are deployed.
【００４３】２１が前記した濁度センサーであり、例え
ば発光素子と受光素子との組み合わせで湯の汚れ具合と
しての濁度を光学的に検知するセンサーが利用され、こ
の濁度センサー２１により検知した湯の汚れ具合に応じ
て凝集沈澱の処理間隔、凝集沈澱剤添加量、処理時間、
遠心分離速度等の処理条件を定めて凝集沈澱処理を自動
的にできるようにする。Reference numeral 21 is the turbidity sensor described above. For example, a sensor that optically detects turbidity as a dirty condition of hot water is used by combining a light emitting element and a light receiving element. Depending on the degree of fouling of the hot water, the treatment interval of coagulation and sedimentation, the amount of coagulation sedimentation agent added, the treatment time,
The processing conditions such as the centrifugation speed are set so that the flocculation and precipitation processing can be automatically performed.
【００４４】２６はタイマーであり、凝集沈澱処理の処
理間隔や処理の時間を設定し、またこの設定された時間
の経過を計測したりして凝集沈澱処理の時間的な制御を
行う。Reference numeral 26 denotes a timer, which sets the processing interval and the processing time of the coagulation-sedimentation process, and controls the time of the coagulation-sedimentation process by measuring the elapse of the set time.
【００４５】２７は凝集沈澱制御データ記憶ＲＯＭであ
り、このＲＯＭには予めの実験等によって求めた湯の汚
れ具合と凝集沈澱処理間隔、凝集沈澱剤添加量、凝集沈
澱処理時間、遠心分離速度等の凝集沈澱タンク１４での
凝集沈澱を自動的に行うための全ての制御のプログラム
データが記憶されている。Reference numeral 27 is a flocculation-precipitation control data storage ROM, and in this ROM, the degree of fouling of hot water obtained by previous experiments and the like, the flocculation-precipitation treatment interval, the flocculation-precipitation agent addition amount, the flocculation-precipitation treatment time, the centrifugation speed, etc. The program data of all the controls for automatically performing the coagulation and sedimentation in the coagulation and sedimentation tank 14 is stored.
【００４６】以上のように構成される制御装置におい
て、まず凝集沈澱処理を手動で行う場合には、ＣＰＵ２
２は、凝集沈澱条件設定キー２５で手動で設定された凝
集沈澱剤添加量、凝集沈澱処理時間、遠心分離速度等に
基づいて凝集沈澱処理が行われるよう、タイマ２６に時
間設定をしたり、圧送ポンプ１９及び遠心分離モータ１
６を作動させたりして制御する。In the controller constructed as described above, when the coagulation-precipitation process is first performed manually, the CPU 2
2, the timer 26 is set so that the aggregation-precipitation treatment is performed based on the amount of the aggregation-precipitation agent added, the aggregation-precipitation treatment time, the centrifugation speed, etc., which are manually set by the aggregation-precipitation condition setting key 25. Pressure pump 19 and centrifugal motor 1
6 is operated and controlled.
【００４７】次に凝集沈澱処理を自動で行う場合には、
ＣＰＵ２２は、凝集沈澱条件設定キー２５で設定された
湯の汚れ度合、或いは入浴人数等に基づき凝集沈澱制御
データ記憶ＲＯＭ２７から呼び出しタイマー２６に設定
した沈澱処理間隔、或いは濁度センサー２１が検知した
濁度等に応じて凝集沈澱処理の開始時期を定める。Next, in the case of automatically performing the coagulation-precipitation treatment,
The CPU 22 sets the precipitation processing interval set in the calling timer 26 from the coagulation-sediment control data storage ROM 27 based on the degree of fouling of hot water set by the coagulation-sedimentation condition setting key 25, or the number of bathing persons, or the turbidity detected by the turbidity sensor 21. The start time of the coagulation-precipitation treatment is determined according to the degree.
【００４８】凝集沈澱処理の開始時期になると、ＣＰＵ
２２は、凝集沈澱制御データ記憶ＲＯＭ２７から呼び出
した凝集沈澱剤添加量、凝集沈澱処理時間、遠心分離速
度等のデータに基づいて凝集沈澱処理をするため、タイ
マ２６に時間設定をしたり、圧送ポンプ１９及び遠心分
離モータ１６を作動させたりして制御する。When the coagulation-precipitation process starts, the CPU
Numeral 22 designates a timer 26 to set a time or to carry out a pressure feeding pump in order to perform the aggregation and precipitation treatment based on the data such as the amount of the aggregation and precipitation agent added, the aggregation and precipitation treatment time, the centrifugation speed, etc. which are called from the aggregation and precipitation control data storage ROM 27. 19 and the centrifuge motor 16 are operated and controlled.
【００４９】次に、以上のように基本的構成される本発
明について、図３の配管図に基づいてさらに詳細に説明
するが、この場合も従来例と同一の構成部品には同一の
符号が付してあるのでこれらの構成についての説明は省
略する。Next, the present invention, which is basically constructed as described above, will be described in more detail with reference to the piping diagram of FIG. 3. In this case as well, the same components as those of the conventional example are designated by the same reference numerals. Therefore, the description of these configurations will be omitted.
【００５０】前記したように、凝集沈澱タンク１４とし
ての遠心分離タンク１５は、循環ポンプ６とヒータ７と
の間に配備さており、この遠心分離タンク１５は、外筐
２８の中心に遠心分離モータ１６により高速回転される
遠心分離槽２９が配備された構成となっている。As described above, the centrifugal separation tank 15 as the coagulating sedimentation tank 14 is provided between the circulation pump 6 and the heater 7. The centrifugal separation tank 15 has a centrifugal separation motor at the center of the outer casing 28. A centrifugal separation tank 29 that is rotated at high speed by 16 is provided.
【００５１】遠心分離槽２９は、無数の***を設けた側
壁の外側を濾材３０で覆い、凝集沈殿処理された湯を遠
心濾過しつつ槽外に排出できるようした遠心濾過装置と
しての構成になっており、底面には底に溜まった沈澱を
適宜排出できるよう途中に弁３２を設けた沈澱排出管３
１が接続している。The centrifuge tank 29 has a structure as a centrifugal filtration device in which the outside of a side wall provided with innumerable small holes is covered with a filter medium 30 and the coagulated and sedimented hot water can be centrifugally filtered and discharged to the outside of the tank. The bottom of the settling discharge pipe 3 is provided with a valve 32 in the middle so that the settling accumulated on the bottom can be discharged appropriately.
1 is connected.
【００５２】遠心分離タンク１５を前記したような遠心
濾過装置の構成とすると、沈澱を槽の底に溜めて上澄み
液を流すようにする静澄式のように凝集沈澱処理した後
に沈澱が沈むまで湯の排出を待つ必要がなく連続処理に
適しているからである。When the centrifugal separation tank 15 is constituted by the centrifugal filtration device as described above, the precipitate is collected at the bottom of the tank and the supernatant is allowed to flow therethrough. This is because there is no need to wait for the hot water to be discharged, which is suitable for continuous processing.
【００５３】遠心分離タンク１５の遠心分離槽２９は、
上部開口に凝集沈澱剤タンク１７に接続する凝集沈澱剤
供給管１８の供給口と循環ポンプ６からの連結管３３の
流出口とが臨み、凝集沈澱剤タンク１７に収納された凝
集沈澱剤３５と濾過タンク５で濾過された湯とが供給さ
れ凝集沈澱処理するようになっている。The centrifuge tank 29 of the centrifuge tank 15 is
The upper opening faces the supply port of the flocculating-precipitant supply pipe 18 connected to the flocculating-precipitating agent tank 17 and the outlet of the connecting pipe 33 from the circulation pump 6, and the flocculating-precipitating agent 35 stored in the flocculating-precipitating agent tank 17 is formed. The hot water filtered in the filtration tank 5 is supplied for coagulation and precipitation.
【００５４】また遠心分離タンク１５は、外筐２８の底
面に設けた排出口が連結管３４でヒータ７に接続してお
り、凝集沈澱処理が終わり遠心分離槽から排出された湯
をヒータ７に供給するようになっている。In the centrifugal separation tank 15, the discharge port provided on the bottom surface of the outer casing 28 is connected to the heater 7 by the connecting pipe 34, and the hot water discharged from the centrifugal separation tank after the coagulation-sedimentation process is discharged to the heater 7. It is supposed to be supplied.
【００５５】このように構成される装置での湯の清浄化
の動作にについて次に説明する。Next, the operation of cleaning hot water in the apparatus thus constructed will be described.
【００５６】まず循環ポンプ６を作動して装置の運転が
開始し、いまだ自動的に設定された凝集沈澱時間に達し
ていなかったり手動の凝集沈澱キーが押されていなで凝
集沈澱処理の開始状態でない場合には、図４に矢印で示
すように、浴槽１内の湯２は、吸湯管３からプレフイル
ター１０で大きな汚れを濾過しつつ汲み上げられ、濾過
タンク５で濾過した後連結管３３を介して遠心分離タン
ク１５の遠心分離槽２９に入る。First, the circulation pump 6 is operated to start the operation of the apparatus, and the coagulation-sedimentation processing is started because the coagulation-sedimentation time set automatically has not been reached or the manual coagulation-sedimentation key has not been pressed. If not, as shown by the arrow in FIG. 4, the hot water 2 in the bath tub 1 is pumped up from the hot water suction pipe 3 while filtering large dirt with the prefilter 10, and after being filtered by the filtration tank 5, the connecting pipe 33 Through the centrifuge tank 15 into the centrifuge tank 29.
【００５７】遠心分離槽２９は湯が入っても凝集沈澱処
理は必要ないので、圧送ポンプ１９及び遠心分離モータ
１６は作動されておらず、凝集沈澱剤３５は供給されず
又回転されない状態になっている。Since the centrifugal separation tank 29 does not require the coagulation-sedimentation treatment even when hot water enters, the pressure feed pump 19 and the centrifugal separation motor 16 are not operated, and the coagulation-sedimentation agent 35 is neither supplied nor rotated. ing.
【００５８】このような状態で遠心分離槽２９に入った
湯は、濾材３０を通して滲み出たり、上部開口から溢れ
出たりして槽外に出て外筐２８底面の排出口から連結管
３４を介してヒータ７に送られ適温に保温した後噴湯管
９から再び浴槽１内に噴出される従来と同様の清浄化処
理が行われる。The hot water that has entered the centrifugal separation tank 29 in such a state leaks out through the filter medium 30 or overflows from the upper opening and goes out of the tank to the connecting pipe 34 from the outlet on the bottom surface of the outer casing 28. The cleaning process is performed in the same manner as the conventional one in which the temperature is maintained at an appropriate temperature by being sent to the heater 7 and then sprayed again from the spout tube 9 into the bath 1.
【００５９】この際噴湯管９の先端に負圧部に吸気管１
２が接続するジエツトノズル１１が取り付けておくと、
電磁弁１３を開いて吸気管１２から吸気することにより
ジエツトノズル１１からは空気を含んだジエツト流が噴
出し泡風呂が形成できる。At this time, the suction pipe 1 is attached to the negative pressure portion at the tip of the spout pipe 9.
When the jet nozzle 11 to which 2 is connected is attached,
By opening the solenoid valve 13 and sucking air from the intake pipe 12, a jet flow containing air is ejected from the jet nozzle 11 to form a bubble bath.
【００６０】次に濁度センサー２１で検知した湯の汚れ
具合、或いは凝集沈澱条件設定キー２５で設定された湯
の汚れ度に基づき自動的に凝集沈澱処理を必要とする状
態になったり、或いは手動設定により凝集沈澱処理状態
になったりすると、図５に矢印で示すように、濾過タン
ク５で濾過した後連結管３３を介して遠心分離タンク１
５の遠心分離槽２９に入った湯は凝集沈澱処理される。Next, a state in which the coagulation-sedimentation treatment is automatically required is made based on the degree of contamination of the hot water detected by the turbidity sensor 21 or the degree of contamination of the hot water set by the coagulation-sedimentation condition setting key 25, or When the coagulation-sedimentation state is set by manual setting, as shown by the arrow in FIG. 5, after being filtered by the filtration tank 5, the centrifugal separation tank 1 is passed through the connecting pipe 33.
The hot water in the centrifuge tank 29 of No. 5 is subjected to coagulation and precipitation treatment.
【００６１】この場合は圧送ポンプ１９及び遠心分離モ
ータ１６が作動されているので、遠心分離槽２９は、凝
集沈澱剤タンク１７に収納された凝集沈澱剤３５が所定
量供給され、又所定の回転速度で回転している。In this case, since the pressure pump 19 and the centrifugal motor 16 are operated, the centrifuge tank 29 is supplied with a predetermined amount of the flocculating and precipitating agent 35 stored in the flocculating and precipitating agent tank 17 and is rotated at a predetermined speed. Rotating at speed.
【００６２】そこで遠心分離槽２９に入った湯に所定量
の凝集沈澱剤が混合されて湯の汚れに対する凝集沈澱処
理が行われ、同時に凝集沈澱処理の終わった湯が遠心濾
過により沈澱が取り除かれて槽外に排出される。Then, a predetermined amount of the coagulation-precipitating agent is mixed with the hot water in the centrifugal separation tank 29 to carry out the coagulation-precipitation treatment for the dirt of the hot-water, and at the same time, the precipitation of the hot-water after the coagulation-precipitation treatment is removed by centrifugal filtration. Is discharged outside the tank.
【００６３】遠心分離槽２９の外に遠心濾過されて排出
された湯は、外筐２８底面の排出口から連結管３４を介
してヒータ７に送られ適温に保温した後噴湯管９から再
び浴槽１内に噴出され、湯中に分散していたコロイド質
の汚れを取り除くことを含めての清浄化処理が行われ
る。The hot water that has been centrifugally filtered and discharged to the outside of the centrifugal separation tank 29 is sent from the discharge port on the bottom of the outer casing 28 to the heater 7 via the connecting pipe 34, and after being kept at an appropriate temperature, it is again bathed from the hot water pipe 9. A cleaning process including removing colloidal dirt that has been jetted out into the hot water 1 and dispersed in the hot water is performed.
【００６４】[0064]
【発明の効果】本発明は以上のような構成及び作用のも
のであり、本発明により、従来取り除くのが極めて困難
であった湯中に分散したコロイド質の汚れを容易に取り
除ける浴槽湯の清浄化方法が提供される。Industrial Applicability The present invention has the above-described structure and operation. According to the present invention, cleaning of a bathtub hot water which can easily remove colloidal dirt dispersed in hot water which has been extremely difficult to remove in the past. An activation method is provided.
【００６５】又本発明により、自動或いは手動により湯
中に分散したコロイド質の汚れを容易に取り除ける簡便
なる浴槽湯の清浄化装置も提供され、これらの結果によ
り、２４時間何時でも快適な入浴が楽しめるようにな
る。Further, according to the present invention, there is provided a simple bath water purifying device which can easily remove colloidal stains dispersed in hot water automatically or manually, and these results provide comfortable bathing at any time for 24 hours. You will enjoy it.
【図１】 基本ブロツク図、[Figure 1] Basic block diagram,
【図２】 制御ブロツク図、[Fig. 2] Control block diagram,
【図３】 配管図、[Fig. 3] Piping diagram
【図４】 配管図（非凝集沈澱処理状態）、[Fig. 4] Piping diagram (non-aggregated sedimentation treatment state),
【図５】 配管図（凝集沈澱処理状態）、[Fig. 5] Piping diagram (coagulation sedimentation treatment state),
【図６】 従来例。FIG. 6 shows a conventional example.
１ 浴槽 ２ 湯 ３ 吸湯管 ４ 装置本体 ５ 濾過タンク ６ 循環ポンプ ７ ヒータ ９ 噴湯管 １４ 凝集沈澱タンク １５ 遠心分離タンク １７ 凝集沈澱剤タンク ２９ 遠心分離槽 ３０ 濾材 ３５ 凝集沈澱剤 1 bathtub 2 hot water 3 Hot water pipe 4 Device body 5 Filtration tank 6 circulation pumps 7 heater 9 Fountain tube 14 Coagulation sedimentation tank 15 Centrifuge tank 17 Flocculant tank 29 Centrifuge 30 filter media 35 Aggregating and precipitating agent
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ０２Ｆ 1/50 ５４０ Ｃ０２Ｆ 1/50 ５５０Ｄ ５５０ ５６０Ａ ５６０ ５６０Ｂ ５６０Ｚ 1/78 1/78 9/00 ５０２Ａ 9/00 ５０２ ５０２Ｄ ５０２Ｐ ５０３Ａ ５０３ ５０４Ｂ ５０４ Ａ４７Ｋ 3/00 Ｚ // Ａ４７Ｋ 3/00 Ｂ０１Ｄ 35/02 Ｊ (58)調査した分野(Int.Cl.7，ＤＢ名) C02F 1/56 B01D 35/027 C02F 1/50 C02F 1/78 C02F 9/00 A47K 3/00 ─────────────────────────────────────────────────── ─── Continued Front Page (51) Int.Cl. 7 Identification FI C02F 1/50 540 C02F 1/50 550D 550 560A 560 560B 560Z 1/78 1/78 9/00 502A 9/00 502 502D 502P 503A 503 504B 504 A47K 3/00 Z // A47K 3/00 B01D 35/02 J (58) Fields investigated (Int.Cl. 7 , DB name) C02F 1/56 B01D 35/027 C02F 1/50 C02F 1 / 78 C02F 9/00 A47K 3/00
Claims (4)
種清浄化装置の配備された循環路を強制的に循環させ、
濾過装置での濾過、加熱装置での加熱、殺菌装置による
殺菌等の各種の清浄化処理を行う浴槽湯の清浄化方法に
おいて、沈降性粉末の表面に凝集剤を被覆した凝集沈澱
剤を浴槽湯の循環路中に添加し、前記濾過装置で捕捉さ
れない汚れを浴槽湯の循環路中で凝集して沈澱させて捕
捉処理することを特徴とする浴槽湯の清浄化方法。1. A hot water in a bathtub is pumped by a circulation pump to forcibly circulate through a circulation path provided with various cleaning devices.
In a method for cleaning bath water that performs various cleaning treatments such as filtration with a filtration device, heating with a heating device, and sterilization with a sterilizer, a flocculating precipitant obtained by coating the surface of a sedimentable powder with a flocculating agent is used. The method for cleaning bathtub hot water is characterized in that dirt that is not captured by the filtration device is added to the circulation path of No. 3 and aggregated and precipitated in the circulation path of the bathwater to be captured.
種清浄化装置の配備された循環路を強制的に循環させ、
濾過装置での濾過、加熱装置での加熱、殺菌装置による
殺菌等の各種の清浄化処理を行う浴槽湯の清浄化方法に
おいて、沈降性粉末の表面に凝集剤を被覆した凝集沈澱
剤を浴槽湯の循環路中に添加しコロイド質の汚れを浴槽
湯の循環路中で凝集沈澱処理することを特徴とする浴槽
湯の清浄化方法。2. The hot water in the bathtub is pumped by a circulation pump to forcibly circulate in a circulation path provided with various cleaning devices,
In a method for cleaning bath water that performs various cleaning treatments such as filtration with a filtration device, heating with a heating device, and sterilization with a sterilizer, a flocculating precipitant obtained by coating the surface of a sedimentable powder with a flocculating agent is used. The method for cleaning a bathtub hot water is characterized in that colloidal dirt is added to the circulation route of the bathtub and coagulated and settled in the bathtub hot water circulation route.
質を表面に被覆した沈降性粉末を主体とするものである
ことを特徴とする請求項１または２に記載の浴槽湯の清
浄化方法。3. The cleaning of bath water according to claim 1 or 2, wherein the coagulant / precipitating agent is mainly composed of a settling powder having a surface coated with a cationic polymer electrolyte. Method.
より所定の時間沈殿処理するようにしたことを特徴とす
る請求項１または２に記載の浴槽湯の清浄化方法。4. The method for cleaning bathtub hot water according to claim 1, wherein the coagulating sedimentation treatment is performed by a coagulating sedimentation processing command for a predetermined time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12581394A JP3499917B2 (en) | 1994-05-16 | 1994-05-16 | Bathtub cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12581394A JP3499917B2 (en) | 1994-05-16 | 1994-05-16 | Bathtub cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07308679A JPH07308679A (en) | 1995-11-28 |
| JP3499917B2 true JP3499917B2 (en) | 2004-02-23 |
Family
ID=14919571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12581394A Expired - Fee Related JP3499917B2 (en) | 1994-05-16 | 1994-05-16 | Bathtub cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3499917B2 (en) |
-
1994
- 1994-05-16 JP JP12581394A patent/JP3499917B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07308679A (en) | 1995-11-28 |
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