JP4059804B2

JP4059804B2 - Cartridge type water purifier

Info

Publication number: JP4059804B2
Application number: JP2003118617A
Authority: JP
Inventors: 勇佐藤; 将人貝田; 義孝市橋
Original assignee: Organo Corp
Current assignee: Organo Corp
Priority date: 2003-04-23
Filing date: 2003-04-23
Publication date: 2008-03-12
Anticipated expiration: 2023-04-23
Also published as: JP2004321904A

Description

【０００１】
【発明の属する技術分野】
本発明は、カートリッジ型浄水器及び残留塩素の除去方法に関し、特に、市水（水道水）から残留塩素を除く際に好適に使用できるカートリッジ型浄水器、及び、残留塩素の除去方法に関する。
【０００２】
【従来の技術】
カートリッジ型浄水器は、水道水から残留塩素を除くために、家庭や、オフィス、食堂、ファーストフード店、或いは、自動販売機等で広範囲に使用されている。図７は、実開昭５６−７３０８０号公報に記載された従来のカートリッジ型浄水器を示す断面図である。
【０００３】
カートリッジ型浄水器（以下、単に浄水器と呼ぶ）は、原水流入口３１及び処理水流出口３２を上面に有する略円筒形のハウジング３０と、このハウジング３０と同心状にハウジング３０内に収容された略円筒形の濾材カートリッジ３３とを有する。濾材カートリッジ３３の中心部には、円筒状のバイパス流路３６を形成する集水カラム３４が配設され、集水カラム３４の周囲及び下部は、原水を処理する処理室３５を形成している。バイパス流路３６と処理室３５とは通水性を有する集水カラム３４を介して互いに連通する。
【０００４】
処理室３５には、原水から残留塩素を除去するための活性炭が充填されている。バイパス流路３６中には、スケール防止剤３７が充填された薬品筒３８が配置されている。スケール防止剤３７は、この浄水器で処理した処理水が流れる配管等からスケールを除去する目的で使用される。処理室３５の下端は、フィルタ３９を介してハウジング３０内部の空間に連通している。バイパス流路３６の下端は、フィルタ４０、処理室３５、及び、フィルタ３９を介して、ハウジング３０内部の空間に連通し、バイパス流路３６の上端は、処理水流出口３２に接続されている。
【０００５】
原水は、原水流入口３１から導入され、ハウジング３０の上端から、ハウジング３０と濾材カートリッジ３３との間の空間を通過してハウジング３０の下端に流れ、次いで、濾材カートリッジ３３の下端から、処理室３５とバイパス流路３６とに分流して流れる。処理室３５を通過した処理水と、バイパス流路３６でスケール防止剤が添加された原水とは、集水カラム３４内で合流し、処理水流出口３２を経由して外部に供給される。
【０００６】
上記構成の浄水器は、例えば、自動販売機の水道水供給口や、ファーストフード店等で利用されるコーヒーメーカーのディスペンサー等に取り付けられ、水道水から、その残留塩素の一部を除去してカルキ臭を消している。ここで、流入する水道水の全てを処理室で活性炭処理すると、カルキ臭の問題は生じないものの、処理水における殺菌力が失われ、その処理水が後に通過する配管やバルブ等の内部で細菌が繁殖するおそれがある。従って、上記従来の浄水器では、このような細菌の繁殖防止を目的として、浄水器にバイパス流路を設け、処理水中に残留塩素の一部を残すことで、処理水に殺菌効果を持たせている。
【０００７】
【特許文献１】
実開昭５６−７３０８０号公報
【０００８】
【発明が解決しようとする課題】
一般に、水道水の残留塩素は、水道水の供給者における設備や取水源の違い、或いは、季節変動等のために、その濃度が０．５ｍｇ／Ｌ〜２．０ｍｇ／Ｌ程度の間でばらつきを有する。残留塩素の濃度が例えば１ｍｇ／Ｌを上回ると、その水道水から得られる飲料はカルキ臭を有する。しかし、上記従来の浄水器では、残留塩素の除去率は、浄水器の構造で決まるため、結果として、処理水に残される残留塩素は、原水における残留塩素の濃度で左右される。このため、浄水器を設置した場所や季節等に依存して処理水中の塩素濃度が異なり、処理水を利用して自動販売機やファーストフード店において作られ、販売される飲料等についてはカルキ臭が残る等の問題があった。
【０００９】
上記カルキ臭を除くために、残留塩素の除去率を上げ、浄水器毎で適当な塩素濃度が得られるように浄水器を改良することは容易である。しかし、その改良した浄水器では、他の水道供給者から供給される水道水を処理した処理水については、或いは、同じ水道供給者からの水道水を処理した処理水であっても季節によっては、塩素濃度が不足する事態が発生する。処理水の塩素濃度が例えば０．３ｍｇ／Ｌを下回ると、処理水が通過する配管やバルブ等に細菌が繁殖する等の問題が発生する。また、このような問題に対処するため、残留塩素の濃度の変動に対応した残留塩素の除去率を有する浄水器を個別に製作すると、設計及び製作が煩雑になり、浄水器の製造コストが上昇する。
【００１０】
本発明は、上記に鑑み、水道水の供給者における設備や取水源の違い、或いは、季節変動等によって変動する原水の残留塩素の濃度にも拘わらず、所望の濃度で残留塩素を処理水中に残すことが出来るカートリッジ型浄水器を提供することを目的とする。
【００１２】
【課題を解決するための手段】
上記目的を達成するために、本発明のカートリッジ型浄水器は、原水流入口及び処理水流出口に連通し、流入する原水から残留塩素を除去する処理室と、該処理室をバイパスするバイパス流路とを備えるカートリッジ型浄水器において、
前記処理室に流入する原水の流量と前記バイパス流路を流れる原水の流量との間の比率を可変に設定する流路調整手段を備えることを特徴とする。
【００１３】
本発明のカートリッジ型浄水器によると、処理室に流入する原水の流量とバイパス流路を流れる原水の流量の比率を設定することにより、所望の塩素濃度を有する処理水が容易に得られるので、この処理水から得られる飲料のカルキ臭の問題や、処理水を通過させる配管やバルブ等における細菌繁殖等の問題が生じない処理水が得られる。
【００１４】
本発明のカートリッジ型浄水器では、前記流路調整手段が、前記原水流入口と前記処理室との間の有効開口面積が０〜１００％の間で変化する第１の開口調整機構と、前記原水流入口と前記バイパス流路との間の有効開口面積が０〜１００％の間で変化する第２の開口調整機構とを備え、原水の供給者の設備や季節に依存して変化する原水の残留塩素の如何に拘わらず、処理水中の塩素濃度が所望の値に設定できる。
【００１５】
また、前記流路調整手段が、前記第１の開口調整機構及び第２の開口調整機構を一体的に調整する共通の操作部を備え、該操作部は、前記第１の開口調整機構における有効開口面積を１００％に且つ前記第２の開口調整機構における有効開口面積を０％に設定する第１の操作位置と、前記第１の開口調整機構における有効開口面積を０％に且つ前記第２の開口調整機構における有効開口面積を１００％に設定する第２の操作位置との間で前記第１の開口調整機構及び第２の開口調整機構の有効開口面積の比率を調整することも本発明の態様であり、１つの操作部の操作によって所望の流量比率が得られる。
【００１６】
更に、前記第１の開口調整機構及び第２の開口調整機構の少なくとも一方が、固定板に形成された第１の開口部と、該固定板上を摺動する可動板に形成された第２の開口部とから構成され、前記有効開口面積の調整が、前記可動板の位置調整による第１の開口部と第２の開口部との重なり面積の調整によって行われることも本発明の態様であり、簡素な機構によって所望の流量調整が得られる。
【００１７】
また、前記第１の開口調整機構及び第２の開口調整機構の一方が、固定板に形成された第１の開口部と、該固定板上を摺動する可動板に形成された第２の開口部とから構成され、前記第１の開口部調整機構及び第２の開口調整機構の他方が、固定円筒に形成された第３の開口部と、前記可動板と一体的に回転移動し前記固定円筒上を摺動する可動円筒に形成された第４の開口部とから構成され、前記第１及び第２の開口調整機構による有効開口面積の調整が、前記可動板及び可動円筒の回転位置の調整によって行われる構成を採用することもできる。この場合、同様に簡素な機構によって所望の流量調整が得られる。
【００１８】
上記に代えて、前記第１の開口調整機構及び第２の開口調整機構の一方が、固定板に形成された第１の開口部と、該固定板上を摺動する可動板に形成された第２の開口部とから構成され、前記第１の開口調整機構及び第２の開口調整機構の他方が、前記固定板の前記第１の開口部の半径方向内側に形成された第３の開口部と、前記可動板の前記第２の開口部の半径方向内側に前記第３の開口部に対応して形成された第４の開口部とから構成され、前記第１及び第２の開口調整機構による有効開口面積の調整が、前記可動板の回転位置の調整によって行われる構成を採用することも出来る。同様に簡素な機構によって所望の流量調整が得られる。
【００１９】
更に、前記第１の開口部と第２の開口部とが略同形状を有し、該第１及び第２の開口部は、前記可動板の移動方向に順次に開口幅が変化することも本発明の好ましい態様である。この場合、きめ細かな調整が容易となり、所望の調整が容易に得られる。
【００２２】
【発明の実施の形態】
以下、図面を参照し、本発明の実施形態例に基づいて本発明を更に詳細に説明する。図１は、本発明の第１の実施形態例に係るカートリッジ型浄水器の構成を示している。カートリッジ型浄水器（以下、単に浄水器と呼ぶ）１００は、原水流入口１１及び処理水流出口１２を上面に有する略円筒形のハウジング１０と、このハウジング１０と同心状にハウジング１０内に収容された略円筒形の濾材カートリッジ１３とを有する。ハウジング１０内部の空間は、原水流入口１１と連通し、且つ、濾材カートリッジ１３の内部とその下端部で連通している。濾材カートリッジ１３は、処理水流出口１２に形成された内ねじに螺合する先端部１３ａによってハウジング１０内に支持される。
【００２３】
濾材カートリッジ１３は、その中心部分に配設された、円筒状のバイパス流路１９を形成するバイパス管１４と、バイパス管１４と濾材カートリッジ１３の内壁との間に形成される処理室１５と、バイパス管１４及び処理室１５とハウジング１０内の空間との間の開口を調整する流量調整板１６とを有する。処理室１５には、原水から残留塩素を除去するための活性炭が充填されており、活性炭は、処理室１５下端の前フィルタ１７と処理室上端の後フィルタ１８とによって処理室１５内に留められている。
【００２４】
バイパス管１４内部のバイパス流路１９は、その上端がハウジング１０の処理水流出口１２と連通し、バイパス管１４の下端部は、処理室１５の下端から突出している。バイパス管１４の上端部近傍の円筒面には、処理室１５と連通するためのバイパス管上端部開口２０が形成されており、その開口２０は処理室１５上部に配設された後フィルタ１８によって囲まれている。また、バイパス管１４の下端部近傍の円筒面には、ハウジング１０の内部空間と連通するためのバイパス管下端部開口２４が形成されている。バイパス管１４は、例えば樹脂材料等の水不透過性の材料で形成される。バイパス流路１９には、その上端及び下端にフィルタ１４ｂが収容されており、双方のフィルタ１４ｂの間には、例えばスケール除去剤や、薬品、適当な吸着材を入れておくことも出来る。
【００２５】
流量調整板１６は、ハウジング１０内に流入した原水について、処理室１５内部を通過する原水の流量と、バイパス流路１９を通過する原水の流量との比率を１：０から０：１までの間で無段階に調整する。流量調整板１６は、バイパス管１４の円筒面上を摺動する内側の筒状部分１６ａと、その筒状部分１６ａの頂部から外側に延び、処理室１５を区画する濾材カートリッジ１３の底板１３ｂの下端に接する環状板部分１６ｂと、その環状板部分１６ｂの外縁に接して形成された円筒状のハンドル部分１６ｃとを有する。筒状部分１６ａの円筒面及び環状板部分１６ｂには、バイパス流路１９及び処理室１５を流れる原水の水量調整を行うための開口がそれぞれ形成されている。流量調整板１６は、そのハンドル部分１６ｃを手で持つことにより、濾材カートリッジ１３の固定部分を成す樹脂製の底板１３ｂ及びバイパス管１４に対して回動可能であり、その回動によって、バイパス流路１９と処理室１５とを原水が通過する有効開口面積の比率が調節される。
【００２６】
図２は、流量調整板１６を含む濾材カートリッジ１３の下端部の詳細を、処理室１５を流れる原水の流量が１００％で且つバイパス流路１９を流れる原水の流量が０％の状態で示している。同図（ａ）は、浄水器の軸方向に沿う断面図であり、同図（ｂ）は、その軸方向と直交する方向の断面図であり、同図（ａ）のＢ−Ｂ矢視に相当する。
【００２７】
図２（ａ）に示すように、バイパス管１４には、バイパス流路１９の下端を閉塞する底板１４ａが付属しており、流量調整板１６は、その底板１４ａによって筒状部分１６ａの下端が支持される。流量調整板１６は、また、ハンドル部分１６ｃの上端から内側に突出する突起１６ｄと処理室１５の外壁に形成された環状溝との係止によって支持され、濾材カートリッジ１３と相対的に回動可能である。
【００２８】
バイパス管１４の下端部近傍の円筒面には、その一部に開口２４が形成されている。この開口２４は、図２の状態では、流量調整板１６の筒状部分１６ａの円筒面によって完全に閉止されている。処理室１５下端の濾材カートリッジ１３の底板１３ｂにも、開口２５が形成されている。この開口２５は、同図（ｂ）に示されているように、流量調整板１６の環状板部分１６ｂの開口２６と１００％重なっている。このため、ハウジング１０の底部に達した原水は、その１００％が処理室１５内を通過し、活性炭１５によってその残留塩素が除去される。
【００２９】
図３は、濾材カートリッジ１３の下端部の詳細を、処理室１５を流れる原水の流量が０％で且つバイパス流路１９を流れる原水の流量が１００％となる状態で、図２と同様に示している。同図（ａ）に示されているように、バイパス管１４に形成された開口２４と、流量調整板１６の筒状部分１６ａの開口２７とは、その１００％が重なっている。一方、処理室１５の濾材カートリッジ１３の底板１３ｂに形成された開口２５は、流量調整板１６の環状板部分１６ｂによって完全に閉止されている。この状態では、ハウジング１０の底部に達した原水は、その１００％がバイパス管１４内を通過し、原水は、活性炭処理を受けることなく、原水内の残留塩素はそのまま残される。
【００３０】
上記構成において、開口２５及び開口２６は、原水流入口と処理室間の有効開口面積を調整する第１の開口調整機構を構成し、開口２４及び開口２７は、原水流入口とバイパス流路間の有効開口面積を調整する第２の開口調整機構を構成している。開口２５と開口２６の重なり面積の調整により、また、開口２４と開口２７の重なり面積の調整により、第１及び第２の開口調整機構の有効開口面積が調整される。
【００３１】
上記実施形態例の浄水器は、一般的には図２及び３に示した状態ではなく、それらの間の中間状態で使用されるものであり、例えば図４に示した状態で使用される。図示の状態では、開口２４と開口２７とは約８０％が重なっており、開口２５と開口２６とは約２０％が重なっている。これによって、原水は、約２０％が処理室１５内を通過して活性炭処理され、約８０％がバイパスして、その残留塩素が残される。このように、双方の有効開口面積の比率と双方の流量比率とがほぼ一致するように、各開口面積の大きさと各流路の圧力損失とが定められている。
【００３２】
本実施形態例では、処理室１５内に連通する、濾材カートリッジ１３の底板１３ｂの開口２５と、流量調整板１６の環状板部分１６ｂの開口２６とが略同形状を有し、且つこれら開口２５、２６は、その開口幅が最大値から最小値まで、流量調整板１６の回転方向に単調に且つ無段階に変化する。この構成によって、処理室１５とバイパス流路１９の原水の流量比率が無段階に且つ制御性よく調整される。
【００３３】
原水は、原水流入口１１から導入され、ハウジング１０の上端から、ハウジング１０とカートリッジ１３との間の空間を通過してハウジング１０下端に流れ、次いで、カートリッジ１３の下端から、調整された流量比率に従って処理室１５とバイパス流路１９とに分流して流れる。処理室１５を通過した処理水と、バイパス流路１９で活性炭によって処理されることなく通過した原水とは、バイパス流路１９の上端で合流し、処理水流出口１２を経由して外部に供給される。
【００３４】
浄水器の管理者は、浄水器が設置された時点で、原水に含まれる残留塩素を測定して流量調整板１６の回動位置を決定する。この決定によって、処理水の残留塩素が所望の含有量、例えば０．３ｍｇ／Ｌ〜０．６ｍｇ／Ｌ程度となるように調整される。また、季節毎に原水又は処理水の残留塩素を測定して、同様に流量調整板１６の回動位置を決定し、処理水の残留塩素が同じ値となるように調整する。これによって、水道水供給者の設備や取水源の違い、季節変動等に依存しない所望の塩素濃度が得られる。このため、処理水を利用して得られた飲料におけるカルキ臭の問題や、処理水の殺菌力不足に起因する細菌の繁殖等の問題が生じない処理水が得られる。
【００３５】
図５及び図６は、本発明の第２の実施形態例に係る浄水器の一部を図２及び図３と同様に示している。本実施形態例では、バイパス流路１９の有効開口面積を調整する開口調整機構の形状が第１の実施形態例と異なり、その他の構成は、第１の実施形態例と同様である。図５（ａ）において、本実施形態例では、濾材カートリッジ１３の底板１３ｂは、１枚の円板として形成されており、その円板には、処理室１５のための底板部外側開口２５ａが半径方向外側に形成され、バイパス流路１９のための底板部内側開口２８が半径方向内側に形成されている。
【００３６】
流量調整板１６も略円板形状を有しており、図５（ｂ）に示すように、処理室１５のための流量調整板外側開口２６ａ及びバイパス流路１９のための流量調整板内側開口２９が、濾材カートリッジ１３の底板１３ｂの開口２５ａ、２８に合わせて形成されている。処理室１５のための開口２５ａ、２６ａは、先の実施形態例の開口２５、２６と同様に第１の開口調整機構を構成しており、バイパス流路１９のための開口２８、２９は、これら処理室１５のための開口２５、２６とほぼ同様な形状を有し、第２の開口調整機構を構成している。図５は、原水が１００％処理室１５を通過して残留塩素が除かれる状態を示しており、図６は、原水が１００％バイパス流路１９を通過して残留塩素がそのまま残される状態を示している。浄水器は、これら２つの状態の間の適当な中間位置で使用されることは、第１の実施形態例と同様である。
【００３７】
以上、本発明をその好適な実施形態例に基づいて説明したが、本発明のカートリッジ型浄水器は、上記実施形態例の構成にのみ限定されるものではなく、上記実施形態例の構成から種々の修正及び変更を施したものも、本発明の範囲に含まれる。
【００３８】
【発明の効果】
以上、説明したように、本発明のカートリッジ型浄水器によると、活性炭を通過する原水（被処理水）の流量比率を所望の値に調整することにより、処理水中に含まれる塩素濃度を所望の値に容易に設定できるので、処理水から得られる飲料におけるカルキ臭の問題や、処理水を通過させる配管やバルブ等における細菌の繁殖等の問題が生じない処理水が得られるという顕著な効果を奏する。
【図面の簡単な説明】
【図１】本発明の一実施形態例に係るカートリッジ型浄水器の断面図。
【図２】（ａ）及び（ｂ）はそれぞれ、図１のカートリッジ型浄水器を、処理室内を流れる原水の流量が１００％の状態で示す一部詳細断面図及び平面図。
【図３】（ａ）及び（ｂ）はそれぞれ、図１のカートリッジ型浄水器を、バイパス流路を流れる原水の流量が１００％の状態で示す一部詳細断面図及び平面図。
【図４】実際の使用状態で処理室の開口面積の制御の様子を示す、浄水器の軸と直交方向で見た流量調整板の断面図。
【図５】（ａ）及び（ｂ）はそれぞれ、第２の実施形態例に係るカートリッジ型浄水器を、処理室内を流れる原水の流量が１００％の状態で示す一部詳細断面図及び平面図。
【図６】（ａ）及び（ｂ）はそれぞれ、第２の実施形態例に係るカートリッジ型浄水器を、バイパス流路を流れる原水の流量が１００％の状態で示す一部詳細断面図及び平面図。
【図７】従来のカートリッジ型浄水器の断面図。
【符号の説明】
１００：カートリッジ型浄水器
１０：ハウジング
１１：原水流入口
１２：処理水流出口
１３：濾材カートリッジ
１３ａ：先端部
１３ｂ：底板
１４：バイパス管
１４ｂ：フィルタ（バイパス管内フィルタ）
１５：処理室
１６：流量調整板
１６ａ：筒状部分
１６ｂ：環状板部分
１６ｃ：ハンドル部分
１６ｄ：突起
１７：前フィルタ
１８：後フィルタ
１９：バイパス流路
２０：開口（バイパス管上端部開口）
２４：開口（バイパス流路下端部開口）
２５：開口（底板部開口）
２５ａ：開口（底板部外側開口）
２６：開口（環状板部開口）
２６ａ：開口（流量調整板部外側開口）
２７：開口（筒状部開口）
２８：開口（底板部内側開口）
２９：開口（流量調整板部内側開口）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cartridge-type water purifier and a method for removing residual chlorine, and more particularly to a cartridge-type water purifier that can be suitably used for removing residual chlorine from city water (tap water) and a method for removing residual chlorine.
[0002]
[Prior art]
Cartridge type water purifiers are widely used in homes, offices, cafeterias, fast food stores, vending machines and the like to remove residual chlorine from tap water. FIG. 7 is a sectional view showing a conventional cartridge type water purifier described in Japanese Utility Model Laid-Open No. 56-73080.
[0003]
A cartridge type water purifier (hereinafter simply referred to as a water purifier) is accommodated in the housing 30 concentrically with the substantially cylindrical housing 30 having a raw water inlet 31 and a treated water outlet 32 on the upper surface. A substantially cylindrical filter medium cartridge 33. A water collection column 34 that forms a cylindrical bypass passage 36 is disposed at the center of the filter medium cartridge 33, and a processing chamber 35 that treats raw water is formed around and below the water collection column 34. . The bypass channel 36 and the processing chamber 35 communicate with each other through a water collection column 34 having water permeability.
[0004]
The processing chamber 35 is filled with activated carbon for removing residual chlorine from the raw water. A chemical cylinder 38 filled with a scale inhibitor 37 is disposed in the bypass channel 36. The scale inhibitor 37 is used for the purpose of removing scale from a pipe or the like through which treated water treated by this water purifier flows. The lower end of the processing chamber 35 communicates with the space inside the housing 30 through the filter 39. The lower end of the bypass flow path 36 communicates with the space inside the housing 30 via the filter 40, the treatment chamber 35, and the filter 39, and the upper end of the bypass flow path 36 is connected to the treated water outlet 32.
[0005]
The raw water is introduced from the raw water inlet 31 and flows from the upper end of the housing 30 through the space between the housing 30 and the filter medium cartridge 33 to the lower end of the housing 30, and then from the lower end of the filter medium cartridge 33 to the processing chamber. 35 and the bypass flow path 36. The treated water that has passed through the treatment chamber 35 and the raw water to which the scale inhibitor has been added in the bypass flow path 36 merge in the water collection column 34 and are supplied to the outside via the treated water outlet 32.
[0006]
The water purifier having the above configuration is attached to, for example, a tap water supply port of a vending machine or a dispenser of a coffee maker used in a fast food store or the like, and removes a part of the residual chlorine from the tap water. It erases the odor of chalk. Here, if all the inflowing tap water is treated with activated carbon in the treatment chamber, the problem of odor of calcite does not occur, but the sterilizing power in the treated water is lost, and bacteria inside the pipes and valves etc. through which the treated water passes later May breed. Therefore, in the conventional water purifier, for the purpose of preventing such bacterial growth, a bypass flow path is provided in the water purifier, and a part of residual chlorine is left in the treated water, so that the treated water has a sterilizing effect. ing.
[0007]
[Patent Document 1]
Japanese Utility Model Publication No. 56-73080 [0008]
[Problems to be solved by the invention]
In general, residual chlorine in tap water varies in concentration between about 0.5 mg / L and 2.0 mg / L due to differences in facilities and water sources at the tap water supplier or seasonal variations. Have If the concentration of residual chlorine exceeds, for example, 1 mg / L, the beverage obtained from the tap water has a smell of lime. However, in the conventional water purifier, the residual chlorine removal rate is determined by the structure of the water purifier, and as a result, the residual chlorine remaining in the treated water depends on the concentration of residual chlorine in the raw water. For this reason, the chlorine concentration in the treated water varies depending on the location where the water purifier is installed and the season, etc., and beverages that are made and sold at vending machines and fast food stores using the treated water There were problems such as remaining.
[0009]
In order to remove the above odor, it is easy to improve the water purifier so that the removal rate of residual chlorine is increased and an appropriate chlorine concentration can be obtained for each water purifier. However, with the improved water purifier, depending on the season, the treated water treated tap water supplied from other water suppliers, or even treated water treated tap water from the same water supplier. A situation occurs where the chlorine concentration is insufficient. If the chlorine concentration of the treated water is less than 0.3 mg / L, for example, problems such as bacteria breeding on pipes and valves through which the treated water passes occur. In addition, in order to cope with such problems, if individual water purifiers having a residual chlorine removal rate corresponding to fluctuations in the residual chlorine concentration are individually manufactured, the design and production become complicated, and the manufacturing cost of the water purifier increases. To do.
[0010]
In view of the above, the present invention makes it possible to treat residual chlorine at a desired concentration in treated water regardless of differences in equipment and water sources at the tap water supplier, or the concentration of residual chlorine in raw water that fluctuates due to seasonal fluctuations, etc. It aims at providing the cartridge type water purifier which can be left.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, a cartridge-type water purifier of the present invention includes a treatment chamber that communicates with a raw water inlet and a treated water outlet, removes residual chlorine from the incoming raw water, and a bypass channel that bypasses the treatment chamber. In a cartridge type water purifier comprising
It is characterized by comprising a flow path adjusting means for variably setting a ratio between the flow rate of raw water flowing into the processing chamber and the flow rate of raw water flowing through the bypass flow path.
[0013]
According to the cartridge type water purifier of the present invention, by setting the ratio of the flow rate of the raw water flowing into the treatment chamber and the flow rate of the raw water flowing through the bypass channel, treated water having a desired chlorine concentration can be easily obtained. The treated water which does not produce the problem of the smell of a drink obtained from this treated water and the problem of bacterial propagation in a pipe or valve through which the treated water passes is obtained.
[0014]
In the cartridge type water purifier of the present invention, the flow path adjusting means includes a first opening adjusting mechanism in which an effective opening area between the raw water inlet and the processing chamber changes between 0% and 100%, effectively opening area e Bei a second opening adjustment mechanism which varies between 0 to 100%, depending on the equipment and the season of the supplier of the raw water changes between the raw water inlet and the bypass flow passage Regardless of the residual chlorine in the raw water, the chlorine concentration in the treated water can be set to a desired value.
[0015]
Further, the flow path adjusting means includes a common operation unit that integrally adjusts the first opening adjustment mechanism and the second opening adjustment mechanism, and the operation unit is effective in the first opening adjustment mechanism. A first operation position that sets the opening area to 100% and the effective opening area in the second opening adjustment mechanism to 0%; the effective opening area in the first opening adjustment mechanism to 0% and the second It is also possible to adjust the ratio of the effective opening area of the first opening adjusting mechanism and the second opening adjusting mechanism to the second operation position where the effective opening area in the opening adjusting mechanism is set to 100%. a aspects, the desired flow ratio by the operation of a single operating unit can be obtained.
[0016]
Further, at least one of the first opening adjustment mechanism and the second opening adjustment mechanism includes a first opening formed on the fixed plate and a second plate formed on the movable plate sliding on the fixed plate. It is also an aspect of the present invention that the adjustment of the effective opening area is performed by adjusting the overlapping area of the first opening and the second opening by adjusting the position of the movable plate. Yes, the desired flow rate can be adjusted by a simple mechanism.
[0017]
Further, the one of the first opening adjustment mechanism and the second opening adjustment mechanism, a first opening formed in the fixed plate, a second formed on the movable plate sliding on the fixed plate And the other of the first opening adjustment mechanism and the second opening adjustment mechanism rotates and moves integrally with the third opening formed in the fixed cylinder and the movable plate. A fourth opening formed in the movable cylinder sliding on the fixed cylinder, and the adjustment of the effective opening area by the first and second opening adjustment mechanisms is the rotational position of the movable plate and the movable cylinder. It is also possible to adopt a configuration performed by adjusting the above. In this case, the desired flow rate can be adjusted by a simple mechanism.
[0018]
Instead of the above, one of the first opening adjustment mechanism and the second opening adjustment mechanism is formed on the first opening formed in the fixed plate and the movable plate sliding on the fixed plate. A third opening formed between the first opening adjustment mechanism and the second opening adjustment mechanism on the radially inner side of the first opening of the fixing plate. And a fourth opening formed corresponding to the third opening on the inner side in the radial direction of the second opening of the movable plate, and the first and second opening adjustments It is also possible to adopt a configuration in which the adjustment of the effective opening area by the mechanism is performed by adjusting the rotational position of the movable plate. Similarly, the desired flow rate can be adjusted by a simple mechanism.
[0019]
Further, the first opening and the second opening have substantially the same shape, and the opening width of the first and second openings may change sequentially in the moving direction of the movable plate. This is a preferred embodiment of the present invention. In this case, fine adjustment is facilitated, and desired adjustment can be easily obtained.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, with reference to the drawings, the present invention will be described in more detail based on exemplary embodiments of the present invention. FIG. 1 shows the configuration of a cartridge type water purifier according to the first embodiment of the present invention. A cartridge-type water purifier (hereinafter simply referred to as a water purifier) 100 is accommodated in the housing 10 in a substantially cylindrical housing 10 having a raw water inlet 11 and a treated water outlet 12 on an upper surface thereof, and concentrically with the housing 10. And a substantially cylindrical filter medium cartridge 13. The space inside the housing 10 communicates with the raw water inlet 11 and communicates with the inside of the filter medium cartridge 13 at the lower end thereof. The filter cartridge 13 is supported in the housing 10 by a tip portion 13 a that is screwed into an internal screw formed at the treated water outlet 12.
[0023]
The filter medium cartridge 13 includes a bypass pipe 14 that forms a cylindrical bypass flow path 19 and a processing chamber 15 that is formed between the bypass pipe 14 and the inner wall of the filter medium cartridge 13. A flow rate adjusting plate 16 that adjusts the opening between the bypass pipe 14 and the processing chamber 15 and the space in the housing 10 is provided. The processing chamber 15 is filled with activated carbon for removing residual chlorine from the raw water, and the activated carbon is retained in the processing chamber 15 by the front filter 17 at the lower end of the processing chamber 15 and the rear filter 18 at the upper end of the processing chamber. ing.
[0024]
An upper end of the bypass flow path 19 inside the bypass pipe 14 communicates with the treated water outlet 12 of the housing 10, and a lower end portion of the bypass pipe 14 protrudes from a lower end of the treatment chamber 15. A bypass pipe upper end opening 20 for communicating with the processing chamber 15 is formed in the cylindrical surface near the upper end portion of the bypass pipe 14, and the opening 20 is formed by a rear filter 18 disposed in the upper portion of the processing chamber 15. being surrounded. In addition, a bypass pipe lower end opening 24 for communicating with the internal space of the housing 10 is formed in the cylindrical surface near the lower end of the bypass pipe 14. The bypass pipe 14 is formed of a water-impermeable material such as a resin material. A filter 14b is accommodated in the upper and lower ends of the bypass channel 19, and for example, a scale remover, chemicals, or an appropriate adsorbent can be placed between both the filters 14b.
[0025]
The flow rate adjusting plate 16 has a ratio of the flow rate of the raw water passing through the treatment chamber 15 and the flow rate of the raw water passing through the bypass flow path 19 from 1: 0 to 0: 1. Adjust steplessly between. The flow rate adjusting plate 16 extends to the outside from the top of the cylindrical portion 16 a that slides on the cylindrical surface of the bypass pipe 14, and the bottom plate 13 b of the filter cartridge 13 that defines the processing chamber 15. It has an annular plate portion 16b in contact with the lower end, and a cylindrical handle portion 16c formed in contact with the outer edge of the annular plate portion 16b. Openings for adjusting the amount of raw water flowing through the bypass channel 19 and the processing chamber 15 are formed in the cylindrical surface of the cylindrical portion 16a and the annular plate portion 16b, respectively. The flow rate adjusting plate 16 can be rotated with respect to the resin bottom plate 13b and the bypass pipe 14 constituting the fixing portion of the filter medium cartridge 13 by holding the handle portion 16c by hand. The ratio of the effective opening area through which raw water passes through the channel 19 and the processing chamber 15 is adjusted.
[0026]
FIG. 2 shows details of the lower end of the filter cartridge 13 including the flow rate adjusting plate 16 in a state where the flow rate of the raw water flowing through the processing chamber 15 is 100% and the flow rate of the raw water flowing through the bypass channel 19 is 0%. Yes. The figure (a) is sectional drawing which follows the axial direction of a water purifier, The figure (b) is sectional drawing of the direction orthogonal to the axial direction, and the BB arrow line of the figure (a) It corresponds to.
[0027]
As shown in FIG. 2 (a), the bypass pipe 14 is attached with a bottom plate 14a that closes the lower end of the bypass flow path 19. The flow rate adjusting plate 16 has a lower end of the cylindrical portion 16a by the bottom plate 14a. Supported. The flow rate adjusting plate 16 is also supported by the engagement of a protrusion 16d protruding inward from the upper end of the handle portion 16c and an annular groove formed in the outer wall of the processing chamber 15, and is rotatable relative to the filter medium cartridge 13. It is.
[0028]
An opening 24 is formed in a part of the cylindrical surface near the lower end of the bypass pipe 14. In the state shown in FIG. 2, the opening 24 is completely closed by the cylindrical surface of the cylindrical portion 16 a of the flow rate adjusting plate 16. An opening 25 is also formed in the bottom plate 13 b of the filter medium cartridge 13 at the lower end of the processing chamber 15. The opening 25 overlaps with the opening 26 of the annular plate portion 16b of the flow rate adjusting plate 16 by 100% as shown in FIG. For this reason, 100% of the raw water that has reached the bottom of the housing 10 passes through the treatment chamber 15, and the residual chlorine is removed by the activated carbon 15.
[0029]
FIG. 3 shows details of the lower end of the filter cartridge 13 in the same manner as FIG. 2 in a state where the flow rate of the raw water flowing through the processing chamber 15 is 0% and the flow rate of the raw water flowing through the bypass channel 19 is 100%. ing. As shown in FIG. 5A, 100% of the opening 24 formed in the bypass pipe 14 and the opening 27 of the cylindrical portion 16a of the flow rate adjusting plate 16 overlap each other. On the other hand, the opening 25 formed in the bottom plate 13 b of the filter medium cartridge 13 in the processing chamber 15 is completely closed by the annular plate portion 16 b of the flow rate adjusting plate 16. In this state, 100% of the raw water that has reached the bottom of the housing 10 passes through the bypass pipe 14, and the raw water is not subjected to the activated carbon treatment, and residual chlorine in the raw water is left as it is.
[0030]
In the above configuration, the opening 25 and the opening 26 constitute a first opening adjusting mechanism that adjusts the effective opening area between the raw water inlet and the processing chamber, and the opening 24 and the opening 27 are between the raw water inlet and the bypass flow path. A second opening adjusting mechanism for adjusting the effective opening area of the second opening. By adjusting the overlapping area between the opening 25 and the opening 26 and adjusting the overlapping area between the opening 24 and the opening 27, the effective opening area of the first and second opening adjusting mechanisms is adjusted.
[0031]
The water purifier of the above embodiment is generally used in an intermediate state between them instead of the state shown in FIGS. 2 and 3, for example, in the state shown in FIG. 4. In the state shown in the figure, the opening 24 and the opening 27 overlap approximately 80%, and the opening 25 and the opening 26 overlap approximately 20%. As a result, about 20% of the raw water passes through the treatment chamber 15 and is treated with activated carbon, and about 80% is bypassed to leave its residual chlorine. Thus, the size of each opening area and the pressure loss of each flow path are determined so that the ratio of both effective opening areas and the flow rate ratio of both are substantially the same.
[0032]
In the present embodiment, the opening 25 of the bottom plate 13 b of the filter medium cartridge 13 and the opening 26 of the annular plate portion 16 b of the flow rate adjusting plate 16 that communicate with the processing chamber 15 have substantially the same shape, and these openings 25. 26, the opening width of the flow rate adjustment plate 16 changes monotonously and steplessly from the maximum value to the minimum value. With this configuration, the flow rate of the raw water in the processing chamber 15 and the bypass channel 19 is adjusted steplessly and with good controllability.
[0033]
The raw water is introduced from the raw water inlet 11 and flows from the upper end of the housing 10 through the space between the housing 10 and the cartridge 13 to the lower end of the housing 10, and then from the lower end of the cartridge 13, the adjusted flow rate ratio Accordingly, the flow is divided into the processing chamber 15 and the bypass channel 19. The treated water that has passed through the treatment chamber 15 and the raw water that has passed through the bypass channel 19 without being treated with activated carbon merge at the upper end of the bypass channel 19 and is supplied to the outside via the treated water outlet 12. The
[0034]
When the water purifier is installed, the manager of the water purifier determines the rotation position of the flow rate adjusting plate 16 by measuring residual chlorine contained in the raw water. By this determination, the residual chlorine of the treated water is adjusted to a desired content, for example, about 0.3 mg / L to 0.6 mg / L. Further, the residual chlorine of the raw water or the treated water is measured every season, the rotation position of the flow rate adjusting plate 16 is similarly determined, and the residual chlorine of the treated water is adjusted to the same value. As a result, a desired chlorine concentration that does not depend on differences in the facilities and water sources of the tap water supplier, seasonal variations, etc. can be obtained. For this reason, the treated water which does not produce the problem of the smell of a lime in the drink obtained using treated water, or the problem of the reproduction of bacteria resulting from insufficient sterilizing power of treated water is obtained.
[0035]
5 and 6 show a part of the water purifier according to the second embodiment of the present invention in the same manner as FIG. 2 and FIG. In the present embodiment example, the shape of the opening adjustment mechanism that adjusts the effective opening area of the bypass channel 19 is different from that of the first embodiment example, and other configurations are the same as those of the first embodiment example. 5A, in the present embodiment, the bottom plate 13b of the filter medium cartridge 13 is formed as a single disc, and the disc has a bottom plate portion outer opening 25a for the processing chamber 15. A bottom plate portion inner side opening 28 for the bypass channel 19 is formed on the radially inner side.
[0036]
The flow rate adjusting plate 16 also has a substantially disc shape, and as shown in FIG. 5B, the flow rate adjusting plate outer opening 26a for the processing chamber 15 and the flow rate adjusting plate inner opening for the bypass channel 19 are provided. 29 is formed in accordance with the openings 25 a and 28 of the bottom plate 13 b of the filter medium cartridge 13. The openings 25a and 26a for the processing chamber 15 constitute a first opening adjusting mechanism similarly to the openings 25 and 26 of the previous embodiment, and the openings 28 and 29 for the bypass channel 19 are The openings 25 and 26 for the processing chamber 15 have substantially the same shape and constitute a second opening adjusting mechanism. FIG. 5 shows a state in which the raw water passes through the 100% treatment chamber 15 and the residual chlorine is removed. FIG. 6 shows a state in which the raw water passes through the 100% bypass channel 19 and the residual chlorine is left as it is. Show. As in the first embodiment, the water purifier is used at an appropriate intermediate position between these two states.
[0037]
As mentioned above, although this invention was demonstrated based on the suitable embodiment example, the cartridge type water purifier of this invention is not limited only to the structure of the said embodiment example, Various from the structure of the said embodiment example. Those modified and changed as described above are also included in the scope of the present invention.
[0038]
【The invention's effect】
As described above, according to the cartridge-type water purifier of the present invention, the concentration of chlorine contained in the treated water is adjusted to a desired value by adjusting the flow rate ratio of the raw water (treated water) that passes through the activated carbon to a desired value. Since it can be easily set to a value, it has a remarkable effect that treated water can be obtained that does not cause a problem of odor of odor in beverages obtained from treated water, or problems such as bacterial growth in piping or valves that pass treated water. Play.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a cartridge type water purifier according to an embodiment of the present invention.
FIGS. 2A and 2B are a partial detailed cross-sectional view and a plan view, respectively, showing the cartridge-type water purifier of FIG.
FIGS. 3A and 3B are a partial detailed cross-sectional view and a plan view, respectively, showing the cartridge-type water purifier of FIG. 1 in a state where the flow rate of raw water flowing through the bypass channel is 100%.
FIG. 4 is a cross-sectional view of a flow rate adjusting plate viewed in a direction orthogonal to the axis of the water purifier, showing how the opening area of the treatment chamber is controlled in an actual use state.
FIGS. 5A and 5B are a partial detailed cross-sectional view and a plan view, respectively, showing a cartridge-type water purifier according to the second embodiment in a state where the flow rate of raw water flowing through the processing chamber is 100%. .
FIGS. 6A and 6B are a partial detailed cross-sectional view and a plan view, respectively, showing the cartridge-type water purifier according to the second embodiment in a state where the flow rate of raw water flowing through the bypass channel is 100%. Figure.
FIG. 7 is a cross-sectional view of a conventional cartridge type water purifier.
[Explanation of symbols]
100: cartridge type water purifier 10: housing 11: raw water inlet 12: treated water outlet 13: filter medium cartridge 13a: tip 13b: bottom plate 14: bypass pipe 14b: filter (filter in bypass pipe)
15: Processing chamber 16: Flow rate adjusting plate 16a: Cylindrical portion 16b: Annular plate portion 16c: Handle portion 16d: Protrusion 17: Front filter 18: Rear filter 19: Bypass channel 20: Opening (Bypass pipe upper end opening)
24: Opening (opening of lower end of bypass channel)
25: Opening (bottom plate opening)
25a: Opening (outside opening of bottom plate part)
26: Opening (annular plate opening)
26a: Opening (flow rate adjusting plate outside opening)
27: Opening (tubular portion opening)
28: Opening (bottom plate inside opening)
29: Opening (opening inside flow adjustment plate)

Claims

In a cartridge-type water purifier that includes a treatment chamber that communicates with a raw water inlet and a treated water outlet and removes residual chlorine from the incoming raw water, and a bypass passage that bypasses the treatment chamber.
A flow path adjusting means for variably setting a ratio between the flow rate of raw water flowing into the processing chamber and the flow rate of raw water flowing through the bypass flow path;
The flow path adjustment means includes: a first opening adjustment mechanism in which an effective opening area between the raw water inlet and the processing chamber varies between 0 to 100%; the raw water inlet and the bypass flow path; A second opening adjusting mechanism in which an effective opening area between the first opening adjusting mechanism and the second opening adjusting mechanism is integrally adjusted, and a common operation unit that integrally adjusts the first opening adjusting mechanism and the second opening adjusting mechanism. And the operating section includes a first operating position that sets an effective opening area of the first opening adjusting mechanism to 100% and an effective opening area of the second opening adjusting mechanism to 0%; Between the first opening adjusting mechanism and the second operating position, in which the effective opening area in the opening adjusting mechanism is set to 0% and the effective opening area in the second opening adjusting mechanism is set to 100%. Adjust the ratio of the effective opening area of the opening adjustment mechanism of
At least one of the first opening adjustment mechanism and the second opening adjustment mechanism includes a first opening formed in the fixed plate and a second opening formed in the movable plate sliding on the fixed plate. The cartridge-type water purifier is characterized in that the adjustment of the effective opening area is performed by adjusting the overlapping area of the first opening and the second opening by adjusting the movement of the movable plate. .

In a cartridge-type water purifier that includes a treatment chamber that communicates with a raw water inlet and a treated water outlet and removes residual chlorine from the incoming raw water, and a bypass passage that bypasses the treatment chamber.
A flow path adjusting means for variably setting a ratio between the flow rate of raw water flowing into the processing chamber and the flow rate of raw water flowing through the bypass flow path;
The flow path adjustment means includes: a first opening adjustment mechanism in which an effective opening area between the raw water inlet and the processing chamber varies between 0 to 100%; the raw water inlet and the bypass flow path; A second opening adjusting mechanism in which an effective opening area between the first opening adjusting mechanism and the second opening adjusting mechanism is integrally adjusted, and a common operation unit that integrally adjusts the first opening adjusting mechanism and the second opening adjusting mechanism. And the operating section includes a first operating position that sets an effective opening area of the first opening adjusting mechanism to 100% and an effective opening area of the second opening adjusting mechanism to 0%; Between the first opening adjusting mechanism and the second operating position, in which the effective opening area in the opening adjusting mechanism is set to 0% and the effective opening area in the second opening adjusting mechanism is set to 100%. Adjust the ratio of the effective opening area of the opening adjustment mechanism of
One of the first opening adjustment mechanism and the second opening adjustment mechanism includes a first opening formed in the fixed plate and a second opening formed in the movable plate that slides on the fixed plate. The other of the first opening adjustment mechanism and the second opening adjustment mechanism is a third opening formed in the fixed cylinder, and rotates and moves integrally with the movable plate. The effective opening area is adjusted by adjusting the rotational positions of the movable plate and the movable cylinder. The fourth opening is formed in the sliding movable cylinder, and the effective opening area is adjusted by the first and second opening adjustment mechanisms. A cartridge-type water purifier characterized by

In a cartridge-type water purifier that includes a treatment chamber that communicates with a raw water inlet and a treated water outlet and removes residual chlorine from the incoming raw water, and a bypass passage that bypasses the treatment chamber.
A flow path adjusting means for variably setting a ratio between the flow rate of raw water flowing into the processing chamber and the flow rate of raw water flowing through the bypass flow path;
The flow path adjustment means includes: a first opening adjustment mechanism in which an effective opening area between the raw water inlet and the processing chamber varies between 0 to 100%; the raw water inlet and the bypass flow path; A second opening adjusting mechanism in which an effective opening area between the first opening adjusting mechanism and the second opening adjusting mechanism is integrally adjusted, and a common operation unit that integrally adjusts the first opening adjusting mechanism and the second opening adjusting mechanism. provided, the operating unit, the first and operating position to set the effective opening area of the first opening adjustment mechanism 100% and the 0% Contact Keru effective opening area to the second opening adjustment mechanism, the Between the first opening adjustment mechanism and the second operation position in which the effective opening area in the first opening adjustment mechanism is set to 0% and the effective opening area in the second opening adjustment mechanism is set to 100%; Adjusting the ratio of the effective opening area of the second opening adjustment mechanism;
One of the first opening adjustment mechanism and the second opening adjustment mechanism includes a first opening formed in the fixed plate and a second opening formed in the movable plate that slides on the fixed plate. And the other of the first opening adjustment mechanism and the second opening adjustment mechanism is a third opening formed radially inside the first opening of the fixed plate, and the movable An effective opening area by the first and second opening adjusting mechanisms, which is formed on the radially inner side of the second opening of the plate in correspondence with the third opening. adjustments, the cartridge type water purifier, characterized in that it is made by adjusting the rotational position of the movable plate.

Having said first and second openings and is substantially the same shape, the first and second openings, sequentially opening width varies in the direction of movement of the movable plate, according to claim 1 The cartridge type water purifier according to any one of to 3 .