JP2004188236A

JP2004188236A - Water purifier

Info

Publication number: JP2004188236A
Application number: JP2002355541A
Authority: JP
Inventors: Naoki Kobayashi; 小林　　直樹; Muneyuki Iwabuchi; 宗之岩渕
Original assignee: NGK Insulators Ltd
Current assignee: NGK Insulators Ltd
Priority date: 2002-12-06
Filing date: 2002-12-06
Publication date: 2004-07-08
Anticipated expiration: 2022-12-06
Also published as: JP4076848B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water purifier excellent in water purifying properties and water passing properties and constituted so as to realize the conservation of a space. <P>SOLUTION: The water cleaner 1 is equipped with an adsorbing member 2 for adsorbing impurities contained in raw water 5 to purify the raw water 5, a cylindrical filter body 3 for filtering the raw water 5 to purify the same and a filter case 4 having the adsorbing member 2 and the filter body 3 arranged therein and having an introducing port 7 of the raw water and a lead-out port 8 of cleaned water 6. The adsorbing member 2 is held in a water permeable adsorbing member case 9 so as to fill the case and the adsorbing member case 9 is detachably arranged in the filter case 4. A gap filling member 10, which has elasticity and can be reversibly changed in its volume by the stress applied from the outside, is arranged in the adsorbing member case 9 at a predetermined place on the side of the adsorbing member 2 in a compressed state. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】本発明は、浄水器に関する。さらに詳しくは、浄化性及び通水性に優れるとともに、省スペース化が実現された浄水器に関する。
【０００２】
【従来の技術】近年、化学工業、食品工業等の分野におけるプロセス機器や水道水の家庭用の浄水器において、原液をその内部に透過させて除菌、濾過等の浄化を行うフィルタとして、セラミックス製膜や、活性炭等の吸着部材をフィルタケースに収納したフィルタカートリッジを用いたものが使用されている。
【０００３】このようなフィルタカートリッジを備えた浄水器としては、例えば、少なくとも活性炭を含む濾過層を有するフィルタカートリッジとフィルタケースに内蔵されたセラミックス膜フィルタとを備えたものが提案されている（例えば、特許文献１参照）。
【０００４】この浄水器は、交換が簡易で、メンテナンス性の面において一定の効果を発揮するとともに、セラミックス膜フィルタの目詰まりや圧力損失の上昇を抑えることができる点で優れたものである。また、このようなフィルタカートリッジは、所定期間使用したフィルタカートリッジを回収して容易にリサイクルを行うことが可能である。
【０００５】
【特許文献１】
特許第３１２４６２７号公報
【０００６】
【発明が解決しようとする課題】しかしながら、使用済みのフィルタカートリッジを回収してリサイクルを行う場合、回収したフィルタカートリッジを分解し、その内部の洗浄を行う際に、充填された粉体状の吸着部材、例えば、活性炭等が、プラスチック等からなるフィルタカートリッジの内面に静電気にて付着し、ブラッシング等の手間の掛かる洗浄を行わなければならないという問題があった。特に、このフィルタカートリッジの輸送や使用等に際し、フィルタカートリッジの内部で活性炭同士が擦れ合い、一部の活性炭が、例えば、１μｍ以下の微細な粉末に粉砕されていることがあり、この場合、フィルタカートリッジの洗浄がさらに困難となり問題となっていた。
【０００７】また、フィルタカートリッジに充填された吸着部材、例えば、活性炭に、原水を通過させると活性炭粒子間の間隔が狭まって充填密度が密になり、例えば、浄水器の省スペース化のために、通水方向が水平方向となるようにフィルタカートリッジを横置きに設置した場合においては、活性炭の充填状態に偏りが発生し、フィルタカートリッジの内部に空隙が形成される。このような空隙は原水の流れに対して抵抗が小さいことから、空隙部分を流路として大量の原水が流れることとなり、活性炭による浄化が十分に行われない状態で原水が流出側に排出されてしまうという問題があった。また、フィルタカートリッジの内部に充填された活性炭等の吸着部材が、フィルタカートリッジの圧力損失の上昇を引き起こすという問題もあった。
【０００８】また、従来の浄水器において、上述したフィルタカートリッジの内部に残留する空気の抜け性が悪いために、浄水器を使用する際にフィルタカートリッジ内部に空気が残留し、浄化水の水切れが悪くなることや、フィルタカートリッジ内部でエアーロックを起こし浄化水の排出量が低下するという問題もあった。
【０００９】本発明は、上述の問題に鑑みてなされたもので、浄化能力及び通水性に優れるとともに、省スペース化が実現された浄水器を提供することを目的とする。
【００１０】
【課題を解決するための手段】本発明者は、上述の課題を解決するべく、以下の浄水器を提供するものである。
【００１１】
［１］原水に含まれる不純物を吸着することによって浄化する吸着部材と、前記原水をその内部で濾過することによって浄化する筒状のフィルタ本体と、前記吸着部材及び前記フィルタ本体が内部に配設された、前記原水の導入口及び浄化した浄化水の導出口を有するフィルタケースとを備えた浄水器であって、前記吸着部材が、通水可能な吸着部材ケースの内部に充填された状態で保持されるとともに、前記吸着部材ケースが前記フィルタケースの内部に着脱可能に配設されてなり、前記吸着部材ケースの内部の所定箇所に、弾性を有し、外部から加わる応力によって、その体積を可逆的に変化させることが可能な空隙補填部材が、前記吸着部材側に圧縮された状態で配設されてなることを特徴とする浄水器（以下、「第一の発明」ということがある）。
【００１２】
［２］前記吸着部材ケースの形状が、流入側の端面の断面積が流出側の端面の断面積よりも大きくなるように構成された異径の筒状であり、前記吸着部材ケースの内面のうち、少なくとも前記断面積が変化する異径部位の通水方向に略垂直な内面に、前記吸着部材を通過して前記通水方向に略垂直な内面に達した前記原水を低抵抗に通過させることが可能な圧力損失低減部材が配設されてなる前記［１］に記載の浄水器。
【００１３】
［３］前記吸着部材が活性炭層である前記［１］又は［２］に記載の浄水器。
【００１４】
［４］前記吸着部材ケースの内部に、前記吸着部材として、少なくとも二種類の吸着部材が、区画部材によって区画された状態で保持されてなる前記［１］〜［３］のいずれかに記載の浄水器。
【００１５】
［５］前記吸着部材が、銀を添加することで細菌に対する抗菌性を有する第一の吸着部材及び骨炭を添加することで重金属に対する吸着性を有する第二の吸着部材とからなる前記［４］に記載の浄水器。
【００１６】
［６］前記第一の吸着部材と、前記第二の吸着部材との割合が、質量比で５：９５〜９５：５である前記［５］に記載の浄水器。
【００１７】
［７］原水をその内部で濾過することによって浄化する筒状のフィルタ本体と、前記フィルタ本体が内部に配設された、前記原水の導入口及び浄化した浄化水の導出口を有するフィルタケースとを備えた浄水器であって、前記フィルタケースが、その前記導出口側の端面に開口部を有し、前記フィルタケースの開口部を塞ぐように配設された、所定箇所に開口孔を有するとともに前記フィルタケースの前記開口部に対応した形状を有する板状部材と、前記板状部材の前記開口孔から前記フィルタケースの内部の空気を排出するための空気抜き路を形成するように、前記板状部材の前記開口孔を覆うように配設された空気抜きカバーとをさらに備えてなることを特徴とする浄水器（以下、「第二の発明」ということがある）。
【００１８】
［８］前記フィルタケースの内部に、前記原水に含まれる不純物を吸着することによって浄化する吸着部材をさらに備えてなる前記［７］に記載の浄水器。
【００１９】
［９］前記吸着部材が、通水可能な吸着部材ケースの内部に充填された状態で保持されるとともに、前記吸着部材ケースが前記フィルタケースの内部に着脱可能に配設されてなり、前記吸着部材ケースの内部の所定箇所に、弾性を有し、外部から加わる応力によって、その体積を可逆的に変化させることが可能な空隙補填部材が、前記吸着部材側に圧縮された状態で配設されてなる前記［８］に記載の浄水器。
【００２０】
［１０］前記吸着部材ケースの形状が、流入側の端面の断面積が流出側の端面の断面積よりも大きくなるように構成された異径の筒状であり、前記吸着部材ケースの内面のうち、少なくとも前記断面積が変化する異径部位の通水方向に略垂直な内面に、前記吸着部材を通過して前記通水方向に略垂直な内面に達した前記原水を低抵抗に通過させることが可能な圧力損失低減部材が配設されてなる前記［９］に記載の浄水器。
【００２１】
［１１］前記吸着部材が活性炭層である前記［８］〜［１０］のいずれかに記載の浄水器。
【００２２】
［１２］前記吸着部材ケースの内部に、前記吸着部材として、少なくとも二種類の吸着部材が、区画部材によって区画された状態で保持された前記［９］〜［１１］のいずれかに記載の浄水器。
【００２３】
［１３］前記吸着部材が、銀を添加することで細菌に対する抗菌性を有する第一の吸着部材及び骨炭を添加することで重金属に対する吸着性を有する第二の吸着部材とからなる前記［１２］に記載の浄水器。
【００２４】
［１４］前記第一の吸着部材と、前記第二の吸着部材との割合が、質量比で５：９５〜９５：５である前記［１３］に記載の浄水器。
【００２５】
［１５］前記フィルタ本体がセラミックスフィルタである前記［１］〜［１４］のいずれかに記載の浄水器。
【００２６】
［１６］前記フィルタ本体が、その内部を通過する前記原水の流れ方向が水平方向となるように前記フィルタケースの内部に配設されてなる前記［１］〜［１５］のいずれかに記載の浄水器。
【００２７】
［１７］前記フィルタ本体が、その端部側から前記浄化水を取り出す構造を有するものである前記［１］〜［１６］のいずれかに記載の浄水器。
【００２８】
［１８］前記フィルタ本体が、その外周壁側から前記浄化水を取り出す構造を有するものである前記［１］〜［１６］のいずれかに記載の浄水器。
【００２９】
【発明の実施の形態】以下、本発明（第一及び第二の発明）の実施の形態を、図面を参照しつつ具体的に説明する。
【００３０】まず、本発明（第一の発明）の浄水器の一の実施の形態について具体的に説明する。
【００３１】図１に示すように、本実施の形態の浄水器１は、原水５に含まれる不純物を吸着することによって浄化する吸着部材２と、原水５をその内部で濾過することによって浄化する筒状のフィルタ本体３と、吸着部材２及びフィルタ本体３が内部に配設された、原水５の導入口７及び浄化した浄化水６の導出口８を有するフィルタケース４とを備えた浄水器１であって、吸着部材２が、通水可能な吸着部材ケース９の内部に充填された状態で保持されるとともに、吸着部材ケース９がフィルタケース４の内部に着脱可能に配設されてなり、吸着部材ケース９の内部の所定箇所に、弾性を有し、外部から加わる応力によって、その体積を可逆的に変化させることが可能な空隙補填部材１０が、吸着部材２側に圧縮された状態で配設されてなることを特徴とする。
【００３２】本実施の形態の浄水器１においては、フィルタケース４の内部に、吸着部材２が充填された吸着部材ケース９及びフィルタ本体３が着脱可能に配設されていることから、これらを一体としフィルタカートリッジ１４として用いることができる。また、本実施の形態の浄水器１は、このフィルタカートリッジ１４が、フィルタケース４の導入口７に連なる導入配管１１及びフィルタケース４の導出口８から取り出された浄化液６を外部に導出する導出配管１２を有する外部ケース１３の内部に、フィルタケース４の長手方向が水平方向となるように配設されて構成されている。
【００３３】本実施の形態においては、吸着部材２が充填された吸着部材ケース９及びフィルタ本体３をフィルタケース４の内部に収納した状態で用いることができるために、所定の期間使用したフィルタカートリッジ１４の交換作業が簡便になるとともに、フィルタカートリッジ１４をリサイクルする際の作業が容易になる。また、吸着部材２が吸着部材ケース９に充填された状態でフィルタケース４の内部に保持されているために、フィルタケース４の内面に吸着部材２、例えば、粉体状の活性炭層等が静電気等によって付着することがなく、リサイクル等を行う際のフィルタケース４の洗浄が容易になる。
【００３４】本実施の形態の浄水器１においては、フィルタカートリッジ１４が、その通水方向が水平方向となるような横置きの状態で外部ケース１３の内部に配設されて構成されていることが好ましく、このように構成することによって、例えば、流し台の壁等に取り付けて用いることが可能となり、省スペース化が実現される。
【００３５】従来、フィルタカートリッジが、その通水方向が水平方向となるような横置きの状態で配設されて構成されて浄水器においては、吸着部材が粉体状の場合、吸着部材に原水を通過させた際に、その充填密度が密となり、吸着部材の充填状態に偏りが発生して、フィルタカートリッジの内部に空隙が形成されることがあった。このようにフィルタカートリッジの内部に空隙が形成されると、吸着部材による浄化が十分に行われない状態で原水が流出側に排出されてしまうことがあったが、本実施の形態の浄水器１においては、吸着部材ケース９の内部の所定箇所に、弾性を有し、外部から加わる応力によって、その体積を可逆的に変化させることが可能な空隙補填部材１０が、吸着部材２側に圧縮された状態で配設されており、充填密度の変化による吸着部材２の体積減少分を補填するように、空隙補填部材１０がその体積を増加させて空隙の形成を防止することから、常に吸着部材２による原水５の浄化が十分な状態で行われる。
【００３６】図１においては、空隙補填部材１０が原水５の流入側に配設された構成となっているが、この位置に限定されることはなく、原水５の通水方向に略垂直ないずれかの面に配設されていればよい。
【００３７】本実施の形態に用いられる空隙補填部材１０の材料としては、例えば、ＰＰ繊維、ナイロン繊維、ＰＥ繊維、又は綿から形成された不織布等を好適に用いることができる。
【００３８】また、本実施の形態に用いられる吸着部材２は、活性炭層であることが好ましい。活性炭層は、銀及び骨炭を添加することで細菌に対する抗菌性や重金属等に対する優れた吸着性を有し、濾過機能を有するフィルタ本体３と併用することにより、原水５の浄化精度をさらに向上させることができる。
【００３９】また、本実施の形態においては、吸着部材ケース９の内部に、吸着部材２として、少なくとも二種類の吸着部材２が、不織布等からなる区画部材１９によって区画された状態で保持されていることが好ましく、さらに、吸着部材２が、銀を添加することで細菌に対する抗菌性を有する第一の吸着部材２ａ及び骨炭を添加することで重金属に対する吸着性を有する第二の吸着部材２ｂとからなることが好ましい。
【００４０】銀を添加することで細菌に対する抗菌性を有する第一の吸着部材２ａとしては、例えば、クラレケミカル社製の粒状活性炭：型番Ｔ−ＺＢ６０／１５０を好適に用いることができ、骨炭を添加することで重金属に対する吸着性を有する第二の吸着部材２ｂとしては、例えば、特に鉛に対する吸着性に優れた、クラレケミカル社製の粒状活性炭：型番ＡＲＧ５０Ｓ６０／１５０を好適に用いることができる。
【００４１】また、吸着部材２として、第一の吸着部材２ａと第二の吸着部材２ｂとを用いる用いる場合は、第一の吸着部材２ａと第二の吸着部材２ｂとの割合が、質量比で５：９５〜９５：５であることが好ましい。このように構成することによって、原水５に含まれる有害な不純物を、長期間に渡り強力に除去することができ、安全な浄化水を得ることができる。
【００４２】また、区画部材１９が、弾性を有し、外部から加わる応力によって、その体積を可逆的に変化させることが可能な不織布等を用いて形成されなり、この区画部材１９が、吸着部材２側に圧縮された状態で吸着部材ケース９の内部に配設されることにより、空隙補填部材１０と同様の効果、即ち、充填密度の変化による吸着部材２の体積減少分を補填するように、その体積を増加させて空隙の形成を防止する効果をも有するものとすることができる。
【００４３】本実施の形態に用いられるフィルタ本体３としては、例えば、中空糸製、セラミックス製（その形状としては交互に目封じしたハニカム形状のものやモノリス型形状のもの等がある）等を挙げることができる。中でも、耐熱性や耐食性に優れるセラミックスフィルタを好適に用いることができる。
【００４４】また、本実施の形態に用いられるフィルタ本体３としては、その端部２０側から浄化液６を取り出す構造を有するものであってもよく、その外周壁２１側から浄化液６を取り出す構造を有するものであってもよい。
【００４５】本実施の形態に用いられるフィルタケース４の材料としては、例えば、成形性が容易で、かつ、使用後の回収リサイクルが容易な、ＰＰ樹脂、ＡＢＳ樹脂及びＰＶＤＦ樹脂等の合成樹脂を挙げることができる。
【００４６】また、吸着部材ケース９の材料としては、例えば、ＰＰ樹脂、ＡＢＳ樹脂、ＰＯＭ樹脂及びＰＥ樹脂等の合成樹脂を挙げることができる。
【００４７】また、外部ケース１３の材料としては、例えば、ステンレス等の金属、ＡＢＳ樹脂及びアクリル樹脂等の合成樹脂を挙げることができる。
【００４８】また、本実施の形態においては、特に限定されることはないが外部ケース１３の導入配管１１及び導出配管１２は、ポリスチレン等からなるホース状のものであることが好ましく、この導入配管１１及び導出配管１２は、水道の蛇口に容易に着脱可能で、かつ、浄化水、水道水及び水道水シャワーを切り換え可能な切り換えコックを有する接続部材に接続されて構成されていることがさらに好ましい。
【００４９】また、本実施の形態においては、図２及び３に示すように、吸着部材ケース９の形状が、流入側の端面１６の断面積が流出側の端面１７の断面積よりも大きくなるように構成された異径の筒状であり、吸着部材ケース９の内面のうち、少なくとも断面積が変化する異径部位１５の通水方向に略垂直な内面に、吸着部材２を通過してこの略垂直な内面に達した原水５を低抵抗に通過させることが可能な、不織布等からなる圧力損失低減部材１８が配設されてなることが好ましい。
【００５０】吸着部材ケース９の形状を異径の筒状とすることで、外部ケース１３（図１参照）を大きくすることなく、吸着部材ケース９の体積を増加させることができ、吸着部材ケース９に充填される吸着部材２の充填量を増加させることができる。また、吸着部材ケース９の形状を異径の筒状にした場合、吸着部材ケース９の断面積が変化する異径部位１５が原水５の通水における抵抗となり、フィルタカートリッジ１４（図１参照）の圧力損失が上昇してしまうことがあるが、本実施の形態の浄水器１（図１参照）においては、吸着部材ケース９の少なくとも断面積が変化する異径部位１５の通水方向に略垂直な内面に、不織布等からなる圧力損失低減部材１８を配設することにより、原水５を圧力損失低減部材１８の内部を低抵抗に通過させてフィルタカートリッジ１４（図１参照）の圧力損失を低減させることができる。また、吸着部材ケース９の形状は、図２及び３に示す形状に限定されることはなく、例えば、吸着部材ケース９の側面の少なくとも一部がテーパ状に形成されてなるものであってもよい。
【００５１】また、圧力損失低減部材１８の形状は、図３に示したものに限定されることはなく、例えば、図４に示すように、吸着部材ケース９の断面積が変化する異径部位１５から吸着部材ケース９の流出側の端面１７までの部位を覆うように、圧力損失低減部材１８が配設されていてもよく、図５に示すように、吸着部材ケース９の断面積が変化する異径部位１５から吸着部材ケース９の流出側の端面１７全てを覆うように、圧力損失低減部材１８が配設されてなるものであってもよい。図４及び５において、図３に示した各要素と共通する要素については、図３と同一の符号を付して説明を省略する。
【００５２】本実施の形態に用いられる圧力損失低減部材１８の材料としては、ＰＰ繊維、ナイロン繊維、ＰＥ繊維又は綿から形成された不織布等を好適に用いることができる。
【００５３】また、図１に示すように、圧力損失低減部材１８が、弾性を有し、外部から加わる応力によって、その体積を可逆的に変化させることが可能な不織布等を用いて形成されてなり、この圧力損失低減部材１８が、吸着部材２側に圧縮された状態で吸着部材ケース９の内部に配設されることにより、空隙補填部材１０と同様の効果、即ち、充填密度の変化による吸着部材２の体積減少分を補填するように、その体積を増加させて空隙の形成を防止する効果をも有するものとすることができる。
【００５４】なお、本実施の形態の浄水器１で浄化される原水５としては特に制限はなく、例えば、水道水、化学工業、食品工業等で用いられる各種液体等を挙げることができる。
【００５５】また、図示は省略するが、フィルタカートリッジの交換時期や浄化水の積算流量等の各種情報を表示する表示部を、本実施の形態の浄水器を構成する外部ケースの所定箇所に配設してもよい。
【００５６】次に、本発明（第二の発明）の浄水器について、図６を参照しつつ具体的に説明する。本実施の形態においては、図１に示した浄水器１を構成する構成要素と同様に構成されたものについては、同一の符号を付し、その説明を省略することがある。
【００５７】図６に示すように、本実施の形態の浄水器３１は、原水５をその内部で濾過することによって浄化する筒状のフィルタ本体３と、フィルタ本体３が内部に配設された、原水５の導入口７及び浄化した浄化水６の導出口８を有するフィルタケース４とを備えた浄水器３１であって、フィルタケース４が、その導出口７側の端面に開口部３７を有し、フィルタケース４の開口部３７を塞ぐように配設された、所定箇所に開口孔３６を有するとともにフィルタケース４の開口部３７に対応した形状を有する板状部材３３と、板状部材３３の開口孔３６からフィルタケース４の内部の空気３５を排出するための空気抜き路３４を形成するように、板状部材３３の開口孔３６を覆うように配設された空気抜きカバー３８とをさらに備えてなることを特徴とする浄水器
【００５８】このように構成することによって、フィルタケース４の内部に残留する空気３５を容易に外部へと排出して浄化水６の水切れを良好にすることができるとともに、フィルタケース４の内部に残留した空気３５によるエアーロックを防止し、浄化水６を安定した状態で排出することができる。
【００５９】また、本実施の形態においては、フィルタケース４の内部に、原水５に含まれる不純物を吸着することによって浄化する吸着部材２をさらに備えてなることが好ましく、図１に示した浄水器１と同様に、この吸着部材２が、通水可能な吸着部材ケース９の内部に充填された状態で保持されるとともに、吸着部材ケース９がフィルタケース４の内部に着脱可能に配設されてなり、吸着部材ケース９の内部の所定箇所に、弾性を有し、外部から加わる応力によって、その体積を可逆的に変化させることが可能な、不織布等からなる空隙補填部材１０が、吸着部材２側に圧縮された状態で配設されてなることが好ましい。
【００６０】このように構成することによって、充填密度の変化による吸着部材２の体積減少分を補填するように、空隙補填部材１０がその体積を増加させて空隙の形成を防止することから、常に吸着部材２による原水５の浄化が十分な状態で行われる。
【００６１】また、本実施の形態においては、吸着部材２は、活性炭層であることが好ましい。活性炭層は、銀及び骨炭を添加することで細菌に対する抗菌性や重金属等に対する優れた吸着性を有し、濾過機能を有するフィルタ本体３と併用することにより、原水５の浄化精度をさらに向上させることができる。
【００６２】また、本実施の形態においては、吸着部材ケース９の内部に、吸着部材２として、少なくとも二種類の吸着部材２が、不織布等からなる区画部材１９によって区画された状態で保持されてなることが好ましく、さらに、吸着部材２が、銀を添加することで細菌に対する抗菌性を有する第一の吸着部材２ａ及び骨炭を添加することで重金属に対する吸着性を有する第二の吸着部材２ｂとからなることが好ましい。第一の吸着部材２ａ及び第二の吸着部材２ｂは、図１に示した第一の吸着部材２ａ及び第二の吸着部材２ｂと同様に構成されたものを好適に用いることができる。
【００６３】また、本実施の形態においては、区画部材１９が、弾性を有し、外部から加わる応力によって、その体積を可逆的に変化させることが可能な不織布等を用いて形成されてなり、このように区画部材１９が、吸着部材２側に圧縮された状態で吸着部材ケース９の内部に配設されることにより、空隙補填部材１０と同様の効果、即ち、充填密度の変化による吸着部材２の体積減少分を補填するように、その体積を増加させて空隙の形成を防止する効果をも有するものとすることができる。
【００６４】また、本実施の形態においては、吸着部材ケース９の形状が、流入側の端面１６の断面積が流出側の端面１７の断面積よりも大きくなるように構成された異径の筒状であり、吸着部材ケース９の内面のうち、少なくとも断面積が変化する異径部位１５の通水方向に略垂直な内面に、吸着部材２を通過して通水方向に略垂直な内面に達した原水５を低抵抗に通過させることが可能な、不織布等からなる圧力損失低減部材１８が配設されていることが好ましい。
【００６５】このように構成することによって、図１に示した浄水器１と同様の作用、効果を得ることができる。
【００６６】また、本実施の形態の浄水器３１に用いられるフィルタ本体３、フィルタケース４、圧力損失低減部材１８、吸着部材ケース９、空隙補填部材１０、外部ケース１３、及び区画部材１９は、図１に示した浄水器１において説明した各要素と同様に構成されたものを好適に用いることができる。
【００６７】
【実施例】以下、本発明を実施例によってさらに具体的に説明するが、本発明はこれらの実施例によっていかなる制限を受けるものではない。
【００６８】
（実施例１〜４）
吸着部材として、活性炭（クラレケミカル社製：型番ＧＷ６０／１５０）を、直径７５ｍｍの円筒状の吸着部材ケースの内部に、乾燥状態で充填密度が０．５５ｇ／ｃｍ^３となるように１５０ｇ充填して活性炭層を形成した。
【００６９】活性炭層を充填した吸着部材ケースの原水の流出側に、応力が加わっていない状態での厚さが１０ｍｍで、弾性を有し、外部から加わる応力によって、その体積を可逆的に変化させることが可能な不織布からなる空隙補填部材を、その圧縮量が３．５ｍｍ、４ｍｍ、５ｍｍ及び７ｍｍとなるように活性炭層側に圧縮させた状態で配設し、得られた吸着部材ケースを、２０℃、０．１ＭＰａにおいて、初期通水量が６Ｌ／ｍｉｎの、直径６２ｍｍ、軸方向の長さ１００ｍｍのセラミックスフィルタとともにフィルタケースの内部に配設してフィルタカートリッジを製作し、このフィルタカートリッジを浄水器に設置した（実施例１〜４）。
【００７０】
（比較例１）
吸着部材ケースの内部に同様の条件で活性炭層を充填し、空隙補填部材を配設しない状態で、２０℃、０．１ＭＰａにおいて、初期通水量が６Ｌ／ｍｉｎの、直径６２ｍｍ、軸方向の長さ１００ｍｍのセラミックスフィルタとともにフィルタケースの内部に配設してフィルタカートリッジを製作し、このフィルタカートリッジを浄水器に設置した（比較例１）。
【００７１】この浄水器（実施例１〜４及び比較例１）に、総トリハロメタンの濃度が１００ｐｐｍとなるように調整したイオン交換水を原水として、水圧０．０５ＭＰａ、３Ｌ／ｍｉｎの条件で、排出される浄化水が、原水に含まれるトリハロメタンの８０％以上を除去することができる総通水量を測定した。結果を表１に示す。
【００７２】
【表１】

【００７３】本実施例（実施例１〜４）の全ての浄水器が、９０００Ｌ以上の原水を処理することができた。比較例１の浄水器は、４８００Ｌを通水した時点で、トリハロメタンを８０％以上処理することができなくなった。比較例１においては、フィルタケースの内部に空隙が形成されており、この空隙部分は通水の抵抗が低いために原水が空隙部分を優先的に通過して、活性炭層が均一に使用されていないことが分かる。
【００７４】
（実施例５〜８）
実施例１と同様に、吸着部材として、活性炭（クラレケミカル製：型番ＧＷ６０／１５０）を、直径７５ｍｍの円筒状の吸着部材ケースの内部に、乾燥状態で充填密度が０．５５ｇ／ｃｍ^３となるように１５０ｇ充填して活性炭層を形成した。
【００７５】活性炭層を充填した吸着部材ケースに、図７〜１０に示すように吸着部材ケース９の内面のうち、少なくとも断面積が変化する異径部位の通水方向に略垂直な内面に、活性炭層を通過して通水方向に略垂直な内面に達した原水を低抵抗に通過させることが可能な不織布からなる圧力損失低減部材１８を配設し、得られた吸着部材ケースを、２０℃、０．１ＭＰａにおいて、初期通水量が６Ｌ／ｍｉｎの、直径６２ｍｍ、軸方向の長さ１００ｍｍのセラミックスフィルタとともにフィルタケースの内部に配設してフィルタカートリッジを製作し、このフィルタカートリッジを浄水器に設置した（実施例５〜８）。
【００７６】
（比較例２）
活性炭層を充填した吸着部材ケースに、吸着部材ケースの流出口のみに圧力損失低減部材を配設し、得られた吸着部材ケースを、２０℃、０．１ＭＰａにおいて、初期通水量が６Ｌ／ｍｉｎの、直径６２ｍｍ、軸方向の長さ１００ｍｍのセラミックスフィルタとともにフィルタケースの内部に配設してフィルタカートリッジを製作し、このフィルタカートリッジを浄水器に設置した（比較例２）。
【００７７】この浄水器（実施例５〜８及び比較例２）に、総トリハロメタンの濃度が１００ｐｐｍとなるように調整したイオン交換水を原水として、水圧０．０５ＭＰａ、３Ｌ／ｍｉｎの条件で、排出される浄化水が、原水に含まれるトリハロメタンの８０％以上を除去することができる総通水量を測定した。結果を表２に示す。また、この浄水器（実施例５〜８及び比較例２）の初期通水量を測定した。結果を表２に示す。
【００７８】
【表２】

【００７９】本実施例（実施例５〜８）の浄水器は、全てが９２００Ｌの原水を処理することができた。比較例２の浄水器は、４８００Ｌを通水した時点で、トリハロメタンを８０％以上処理することができなくなった。比較例２の浄水器は、初期通水量が１．５Ｌ／ｍｉｎと非常に少なく、フィルタカートリッジの圧力損失が高いことから、吸着部材ケースに充填された活性炭層が均一に使用されていないことが分かる。
【００８０】
【発明の効果】以上説明したように、本発明によって、浄化性及び通水性に優れるとともに、省スペース化が実現された浄水器が提供される。
【図面の簡単な説明】
【図１】本発明（第一の発明）の浄水器の一の実施の形態を模式的に示す断面図である。
【図２】本発明（第一の発明）の浄水器の一の実施の形態に用いられる吸着部材ケースを模式的に示す斜視図である。
【図３】本発明（第一の発明）の浄水器の一の実施の形態に用いられる吸着部材ケース及び空隙補填部材を模式的に示す断面図である。
【図４】本発明（第一の発明）の浄水器の一の実施の形態に用いられる吸着部材ケース及び空隙補填部材を模式的に示す断面図である。
【図５】本発明（第一の発明）の浄水器の一の実施の形態に用いられる吸着部材ケース及び空隙補填部材を模式的に示す断面図である。
【図６】本発明（第二の発明）の浄水器の一の実施の形態を模式的に示す断面図である。
【図７】本発明の浄水器の実施例５に用いられる吸着部材ケース及び圧力損失低減部材を模式的に示す断面図である。
【図８】本発明の浄水器の実施例６に用いられる吸着部材ケース及び圧力損失低減部材を模式的に示す断面図である。
【図９】本発明の浄水器の実施例７に用いられる吸着部材ケース及び圧力損失低減部材を模式的に示す断面図である。
【図１０】本発明の浄水器の実施例８に用いられる吸着部材ケース及び圧力損失低減部材を模式的に示す断面図である。
【符号の説明】
１…浄水器、２…吸着部材、２ａ…第一の吸着部材、２ｂ…第二の吸着部材、３…フィルタ本体、４…フィルタケース、５…原水、６…浄化水、７…導入口、８…導出口、９…吸着部材ケース、１０…空隙補填部材、１１…導入配管、１２…導出配管、１３…外部ケース、１４…フィルタカートリッジ、１５…異径部位、１６…流入側の端面、１７…流出側の端面、１８…圧力損失低減部材、１９…区画部材、２０…端部、２１…外周壁、３１…浄水器、３３…板状部材、３４…空気抜き路、３５…空気、３６…開口孔、３７…開口部、３８…空気抜きカバー。[0001]
[0001] The present invention relates to a water purifier. More specifically, the present invention relates to a water purifier that is excellent in purifying property and water permeability and that realizes space saving.
[0002]
2. Description of the Related Art In recent years, in a process equipment in the fields of the chemical industry and the food industry, and a household water purifier for tap water, ceramics are used as a filter for purifying bacteria, filtering, etc. by permeating an undiluted solution therein. Film forming and those using a filter cartridge in which an adsorbing member such as activated carbon is accommodated in a filter case are used.
As a water purifier provided with such a filter cartridge, for example, a water purifier provided with a filter cartridge having a filtration layer containing at least activated carbon and a ceramic membrane filter built in a filter case has been proposed (for example, And Patent Document 1).
This water purifier is excellent in that it is easy to replace, exhibits a certain effect in terms of maintainability, and can suppress clogging of the ceramic membrane filter and an increase in pressure loss. Further, such a filter cartridge can be easily recycled by collecting the filter cartridge used for a predetermined period.
[0005]
[Patent Document 1]
Japanese Patent No. 3124627
[0006]
However, when collecting and recycling used filter cartridges, when the collected filter cartridges are disassembled and the inside of the filter cartridges is cleaned, the filled powdery adsorbent is adsorbed. There is a problem that a member, for example, activated carbon or the like adheres to the inner surface of the filter cartridge made of plastic or the like due to static electricity, and it is necessary to perform troublesome cleaning such as brushing. In particular, when the filter cartridge is transported or used, the activated carbon rubs inside the filter cartridge, and some of the activated carbon may be pulverized into, for example, a fine powder of 1 μm or less. Cleaning the cartridge has become more difficult, which has been a problem.
Further, when raw water is allowed to pass through an adsorbing member, for example, activated carbon filled in a filter cartridge, the spacing between activated carbon particles is narrowed and the packing density is increased, for example, to save space in a water purifier. In the case where the filter cartridge is installed horizontally so that the water flow direction is horizontal, a bias occurs in the filling state of the activated carbon, and voids are formed inside the filter cartridge. Since such a gap has a small resistance to the flow of the raw water, a large amount of the raw water flows through the gap as a flow path, and the raw water is discharged to the outflow side in a state where the purification by the activated carbon is not sufficiently performed. There was a problem that it would. Further, there is a problem that an adsorbing member such as activated carbon filled in the filter cartridge causes an increase in pressure loss of the filter cartridge.
Further, in the conventional water purifier, since the air remaining in the filter cartridge described above has poor removability, air remains in the filter cartridge when the water purifier is used, and the purified water runs out. There are also problems such as worsening and the occurrence of air lock inside the filter cartridge, resulting in a decrease in the amount of purified water discharged.
The present invention has been made in view of the above-mentioned problems, and has as its object to provide a water purifier which is excellent in purifying ability and water permeability and realizes space saving.
[0010]
The present inventor has provided the following water purifier in order to solve the above-mentioned problems.
[0011]
[1] An adsorbing member that purifies by adsorbing impurities contained in raw water, a cylindrical filter body that purifies the raw water by filtering it inside, and the adsorbing member and the filter main body are disposed inside. And a filter case having an inlet for the raw water and an outlet for purified water purified, wherein the adsorbing member is filled in a water-permeable adsorbing member case. While being held, the adsorbing member case is detachably disposed inside the filter case, and at a predetermined position inside the adsorbing member case, has elasticity, and its volume is reduced by a stress applied from the outside. A water purifier (hereinafter referred to as a "first invention") in which a gap filling member that can be changed reversibly is arranged in a compressed state on the adsorption member side. Sometimes).
[0012]
[2] The shape of the suction member case is a cylindrical tube of a different diameter configured such that the cross-sectional area of the inflow side end surface is larger than the cross-sectional area of the outflow side end surface. At least, the raw water that has passed through the adsorption member and has reached the inner surface that is substantially perpendicular to the water flow direction is passed with low resistance to the inner surface substantially perpendicular to the water flow direction of at least the different diameter portion where the cross-sectional area changes. The water purifier according to the above [1], wherein a pressure loss reducing member capable of reducing the pressure loss is provided.
[0013]
[3] The water purifier according to [1] or [2], wherein the adsorption member is an activated carbon layer.
[0014]
[4] The device according to any one of [1] to [3], wherein at least two types of suction members are held inside the suction member case as the suction members in a state partitioned by a partition member. Water purifier.
[0015]
[5] The above-mentioned [4], wherein the adsorbing member comprises a first adsorbing member having an antibacterial property against bacteria by adding silver and a second adsorbing member having an adsorbing property against heavy metals by adding bone charcoal. The water purifier described in 1.
[0016]
[6] The water purifier according to the above [5], wherein a ratio of the first adsorption member to the second adsorption member is 5:95 to 95: 5 by mass ratio.
[0017]
[7] A cylindrical filter main body for purifying raw water by filtering inside the filter main body, and a filter case having the filter main body disposed therein and having an inlet for the raw water and an outlet for purified purified water. Wherein the filter case has an opening at an end face on the outlet side thereof, and has an opening at a predetermined position which is disposed so as to close the opening of the filter case. A plate-like member having a shape corresponding to the opening of the filter case, and an air vent for discharging air inside the filter case from the opening of the plate-like member. A water purifier (hereinafter, also referred to as a "second invention"), further comprising an air vent cover disposed so as to cover the opening of the shaped member.
[0018]
[8] The water purifier according to the above [7], further comprising an adsorbing member for purifying the raw water by adsorbing impurities contained in the raw water, inside the filter case.
[0019]
[9] The suction member is held in a state of being filled inside a water-permeable suction member case, and the suction member case is removably disposed inside the filter case. At a predetermined position inside the member case, a gap filling member having elasticity and capable of reversibly changing its volume by a stress applied from the outside is disposed in a compressed state on the suction member side. The water purifier according to the above [8].
[0020]
[10] The shape of the suction member case is a cylindrical tube having a different diameter configured such that the cross-sectional area of the end surface on the inflow side is larger than the cross-sectional area of the end surface on the outflow side. At least, the raw water that has passed through the adsorption member and has reached the inner surface that is substantially perpendicular to the water flow direction is passed with low resistance to the inner surface substantially perpendicular to the water flow direction of at least the different diameter portion where the cross-sectional area changes. The water purifier according to the above [9], wherein a pressure loss reducing member capable of being provided is provided.
[0021]
[11] The water purifier according to any of [8] to [10], wherein the adsorption member is an activated carbon layer.
[0022]
[12] The water purification apparatus according to any one of [9] to [11], wherein at least two types of suction members are held inside the suction member case as the suction members in a state partitioned by a partition member. vessel.
[0023]
[13] The above-mentioned [12], wherein the adsorbing member comprises a first adsorbing member having an antibacterial property against bacteria by adding silver and a second adsorbing member having an adsorbing property against heavy metals by adding bone charcoal. The water purifier described in 1.
[0024]
[14] The water purifier according to the above [13], wherein a ratio of the first adsorption member to the second adsorption member is 5:95 to 95: 5 by mass ratio.
[0025]
[15] The water purifier according to any one of [1] to [14], wherein the filter body is a ceramics filter.
[0026]
[16] The filter according to any one of [1] to [15], wherein the filter body is disposed inside the filter case such that a flow direction of the raw water passing through the inside of the filter body is horizontal. Water purifier.
[0027]
[17] The water purifier according to any one of [1] to [16], wherein the filter main body has a structure for taking out the purified water from an end side thereof.
[0028]
[18] The water purifier according to any one of [1] to [16], wherein the filter main body has a structure for taking out the purified water from an outer peripheral wall side.
[0029]
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention (first and second inventions) will be specifically described below with reference to the drawings.
First, one embodiment of the water purifier of the present invention (first invention) will be specifically described.
As shown in FIG. 1, the water purifier 1 of the present embodiment purifies the raw water 5 by adsorbing impurities contained in the raw water 5 and purifies the raw water 5 by filtering it inside. A water purifier including a cylindrical filter main body 3 and a filter case 4 having an inlet 7 for raw water 5 and an outlet 8 for purified purified water 6 in which the adsorbing member 2 and the filter main body 3 are disposed. 1, wherein the suction member 2 is held in a state of being filled in a water-permeable suction member case 9 and the suction member case 9 is detachably disposed inside the filter case 4. A gap filling member 10 having elasticity and being capable of reversibly changing its volume by an externally applied stress is compressed at a predetermined position inside the suction member case 9 toward the suction member 2. Arranged in And wherein the Rukoto.
In the water purifier 1 of the present embodiment, since the adsorbing member case 9 filled with the adsorbing member 2 and the filter main body 3 are detachably disposed inside the filter case 4, these components are provided. The filter cartridge 14 can be used integrally. Further, in the water purifier 1 of the present embodiment, the filter cartridge 14 guides the purified liquid 6 taken out from the inlet pipe 11 connected to the inlet 7 of the filter case 4 and the outlet 8 of the filter case 4 to the outside. The filter case 4 is disposed inside the outer case 13 having the outlet pipe 12 such that the longitudinal direction of the filter case 4 is horizontal.
In this embodiment, the filter cartridge used for a predetermined period can be used with the suction member case 9 filled with the suction member 2 and the filter body 3 housed inside the filter case 4. The replacement work of the filter cartridge 14 is simplified, and the work of recycling the filter cartridge 14 is facilitated. Further, since the adsorbing member 2 is held inside the filter case 4 in a state where the adsorbing member 2 is filled in the adsorbing member case 9, the adsorbing member 2, for example, a powdered activated carbon layer or the like is formed on the inner surface of the filter case 4. Thus, the filter case 4 can be easily cleaned when the filter case 4 is recycled or the like.
In the water purifier 1 of the present embodiment, the filter cartridge 14 is arranged inside the outer case 13 in a state where the filter cartridge 14 is placed horizontally so that the water flow direction is horizontal. With such a configuration, for example, it becomes possible to use it by attaching it to a wall of a sink or the like, thereby realizing space saving.
Conventionally, a filter cartridge is arranged in a horizontal state so that the water flow direction is horizontal. In a water purifier, when the adsorbing member is in powder form, the raw water is supplied to the adsorbing member. When the filter cartridge is passed through the filter cartridge, the packing density becomes high, and the filling state of the adsorbing member is biased, so that a gap may be formed inside the filter cartridge. If a gap is formed inside the filter cartridge as described above, the raw water may be discharged to the outflow side in a state where the purification by the adsorption member is not sufficiently performed, but the water purifier 1 according to the present embodiment may be used. In the above, a gap filling member 10 having elasticity and capable of reversibly changing its volume by a stress applied from the outside is compressed at a predetermined position inside the suction member case 9 toward the suction member 2. The gap filling member 10 increases the volume of the adsorbing member 2 so as to compensate for the decrease in volume of the adsorbing member 2 due to a change in the filling density, thereby preventing the formation of a gap. Purification of the raw water 5 by 2 is performed in a sufficient state.
In FIG. 1, the gap filling member 10 is arranged on the inflow side of the raw water 5, but is not limited to this position, and is substantially perpendicular to the flowing direction of the raw water 5. What is necessary is just to be arrange | positioned at any surface.
As a material of the gap filling member 10 used in the present embodiment, for example, a non-woven fabric formed of PP fiber, nylon fiber, PE fiber, or cotton can be suitably used.
The adsorbing member 2 used in the present embodiment is preferably an activated carbon layer. The activated carbon layer has an antibacterial property against bacteria and an excellent adsorption property against heavy metals and the like by adding silver and bone charcoal, and further improves the purification accuracy of the raw water 5 by being used in combination with the filter body 3 having a filtering function. be able to.
In the present embodiment, at least two kinds of the adsorbing members 2 are held as the adsorbing members 2 in the adsorbing member case 9 in a state where the adsorbing members 2 are partitioned by the partition member 19 made of a nonwoven fabric or the like. Preferably, the adsorbing member 2 further comprises a first adsorbing member 2a having antibacterial properties against bacteria by adding silver and a second adsorbing member 2b having adsorbing properties against heavy metals by adding bone charcoal. It preferably comprises
As the first adsorbing member 2a having antibacterial properties against bacteria by adding silver, for example, granular activated carbon manufactured by Kuraray Chemical Co., Ltd., model number T-ZB60 / 150 can be suitably used. As the second adsorbing member 2b which has an adsorptivity for heavy metals by being added, for example, granular activated carbon manufactured by Kuraray Chemical Co., Ltd., which is particularly excellent in adsorptivity for lead, model number ARG50S60 / 150 can be suitably used.
When the first adsorbing member 2a and the second adsorbing member 2b are used as the adsorbing member 2, the ratio between the first adsorbing member 2a and the second adsorbing member 2b is determined by the mass ratio. Is preferably 5:95 to 95: 5. With this configuration, harmful impurities contained in the raw water 5 can be strongly removed over a long period of time, and safe purified water can be obtained.
The partition member 19 is formed of a non-woven fabric or the like which has elasticity and whose volume can be reversibly changed by an externally applied stress. By being disposed inside the suction member case 9 in a state of being compressed to the second side, the same effect as that of the gap filling member 10, that is, the volume reduction of the suction member 2 due to the change in the filling density is compensated for. It can also have the effect of increasing the volume and preventing the formation of voids.
The filter body 3 used in the present embodiment is made of, for example, a hollow fiber or a ceramic (the shape of the filter body 3 may be a honeycomb shape or a monolith shape alternately sealed). Can be mentioned. Among them, a ceramics filter having excellent heat resistance and corrosion resistance can be preferably used.
Further, the filter body 3 used in the present embodiment may have a structure for taking out the purifying liquid 6 from the end portion 20 side, and taking out the purifying liquid 6 from the outer peripheral wall 21 side. It may have a structure.
As the material of the filter case 4 used in the present embodiment, for example, synthetic resin such as PP resin, ABS resin and PVDF resin, which is easy to mold and easy to collect and recycle after use, is used. Can be mentioned.
The material of the suction member case 9 may be, for example, a synthetic resin such as a PP resin, an ABS resin, a POM resin, and a PE resin.
Examples of the material for the outer case 13 include metals such as stainless steel and synthetic resins such as ABS resin and acrylic resin.
Further, in the present embodiment, although not particularly limited, the introduction pipe 11 and the extraction pipe 12 of the outer case 13 are preferably hose-shaped made of polystyrene or the like. It is more preferable that the 11 and the outlet pipe 12 be configured to be connected to a connecting member having a switching cock that can be easily attached to and detached from a tap of a tap and that can switch between purified water, tap water, and a tap water shower. .
Further, in this embodiment, as shown in FIGS. 2 and 3, the shape of the suction member case 9 is such that the cross-sectional area of the end face 16 on the inflow side is larger than the cross-sectional area of the end face 17 on the outflow side. Of the suction member case 9, the inner surface of the suction member case 9, which passes through the suction member 2, at least on the inner surface substantially perpendicular to the water flow direction of the different diameter portion 15 where the cross-sectional area changes. It is preferable that a pressure loss reducing member 18 made of a nonwoven fabric or the like, which can pass the raw water 5 reaching the substantially vertical inner surface with low resistance, is provided.
By making the shape of the suction member case 9 cylindrical with different diameters, the volume of the suction member case 9 can be increased without increasing the size of the outer case 13 (see FIG. 1). It is possible to increase the filling amount of the adsorbing member 2 filled in 9. Further, when the shape of the suction member case 9 is a cylindrical shape having a different diameter, the different diameter portion 15 where the cross-sectional area of the suction member case 9 changes becomes a resistance when the raw water 5 flows, and the filter cartridge 14 (see FIG. 1). However, in the water purifier 1 according to the present embodiment (see FIG. 1), at least the suction member case 9 has at least a cross-sectional area that varies in the water passing direction of the different-diameter portion 15. By disposing the pressure loss reducing member 18 made of a nonwoven fabric or the like on the vertical inner surface, the raw water 5 passes through the inside of the pressure loss reducing member 18 with low resistance to reduce the pressure loss of the filter cartridge 14 (see FIG. 1). Can be reduced. The shape of the suction member case 9 is not limited to the shapes shown in FIGS. 2 and 3. For example, at least a part of the side surface of the suction member case 9 may be formed in a tapered shape. Good.
The shape of the pressure loss reducing member 18 is not limited to the one shown in FIG. 3, and for example, as shown in FIG. A pressure loss reducing member 18 may be provided so as to cover a portion from 15 to the end face 17 on the outflow side of the suction member case 9, and as shown in FIG. The pressure loss reducing member 18 may be provided so as to cover the entire end face 17 on the outflow side of the suction member case 9 from the different diameter portion 15. 4 and 5, the elements common to the elements shown in FIG. 3 are denoted by the same reference numerals as in FIG. 3, and the description will be omitted.
As the material of the pressure loss reducing member 18 used in the present embodiment, a non-woven fabric formed of PP fiber, nylon fiber, PE fiber or cotton can be suitably used.
As shown in FIG. 1, the pressure loss reducing member 18 is formed of a nonwoven fabric or the like which has elasticity and whose volume can be reversibly changed by an externally applied stress. Since the pressure loss reducing member 18 is disposed inside the suction member case 9 in a state where the pressure loss reducing member 18 is compressed toward the suction member 2, the same effect as that of the gap filling member 10, that is, due to a change in packing density. It is also possible to increase the volume of the adsorbing member 2 so as to compensate for the decrease in the volume of the adsorbing member 2 and also have the effect of preventing formation of voids.
The raw water 5 to be purified by the water purifier 1 of the present embodiment is not particularly limited, and examples thereof include tap water, various liquids used in the chemical industry, the food industry, and the like.
Although not shown, a display section for displaying various information such as a filter cartridge replacement time and an integrated flow rate of purified water is provided at a predetermined position of an outer case constituting the water purifier of the present embodiment. May be provided.
Next, the water purifier of the present invention (second invention) will be specifically described with reference to FIG. In the present embodiment, the same components as those constituting the water purifier 1 shown in FIG. 1 are denoted by the same reference numerals, and the description thereof may be omitted.
As shown in FIG. 6, a water purifier 31 of the present embodiment has a cylindrical filter body 3 for purifying raw water 5 by filtering it inside, and the filter body 3 is disposed inside. And a filter case 4 having an inlet 7 for the raw water 5 and an outlet 8 for the purified water 6, wherein the filter case 4 has an opening 37 at the end face on the outlet 7 side. A plate-like member 33 having a shape corresponding to the opening 37 of the filter case 4, the plate-like member 33 having an opening 36 at a predetermined position, and being provided so as to close the opening 37 of the filter case 4; An air vent cover 38 disposed so as to cover the aperture 36 of the plate member 33 so as to form an air vent 34 for discharging air 35 inside the filter case 4 from the aperture 36 of the filter case 4. Be prepared Water purifier, characterized in that
With such a configuration, the air 35 remaining in the filter case 4 can be easily discharged to the outside to improve the drainage of the purified water 6, and the inside of the filter case 4 can be improved. The air lock due to the remaining air 35 is prevented, and the purified water 6 can be discharged in a stable state.
In this embodiment, it is preferable that the filter case 4 further includes an adsorbing member 2 for purifying the raw water 5 by adsorbing impurities contained therein. Similarly to the container 1, the suction member 2 is held in a state of being filled in a water-permeable suction member case 9, and the suction member case 9 is detachably disposed inside the filter case 4. A gap filling member 10 made of a nonwoven fabric or the like, which has elasticity and can reversibly change its volume by an externally applied stress, is provided at a predetermined position inside the suction member case 9. It is preferable to be arranged in a compressed state on the two sides.
With this configuration, the gap filling member 10 increases the volume of the adsorbing member 2 so as to compensate for the decrease in the volume of the adsorbing member 2 due to the change in the packing density, thereby preventing the formation of voids. Purification of the raw water 5 by the adsorption member 2 is performed in a sufficient state.
In the present embodiment, the adsorbing member 2 is preferably an activated carbon layer. The activated carbon layer has an antibacterial property against bacteria and an excellent adsorption property against heavy metals and the like by adding silver and bone charcoal, and further improves the purification accuracy of the raw water 5 by being used in combination with the filter body 3 having a filtering function. be able to.
In the present embodiment, at least two kinds of the adsorbing members 2 are held inside the adsorbing member case 9 in a state where the at least two kinds of the adsorbing members 2 are partitioned by the partition member 19 made of a nonwoven fabric or the like. Preferably, the adsorption member 2 further comprises a first adsorption member 2a having antibacterial property against bacteria by adding silver and a second adsorption member 2b having adsorbability to heavy metal by adding bone charcoal. It preferably comprises As the first adsorption member 2a and the second adsorption member 2b, those having the same configuration as the first adsorption member 2a and the second adsorption member 2b shown in FIG. 1 can be preferably used.
In the present embodiment, the partition member 19 is formed of a nonwoven fabric or the like which has elasticity and whose volume can be reversibly changed by an externally applied stress. Since the partition member 19 is disposed inside the suction member case 9 in a state where the partition member 19 is compressed toward the suction member 2, the same effect as the gap filling member 10, that is, the suction member due to a change in the filling density is obtained. In order to compensate for the decrease in the volume of No. 2, the volume can be increased to also have the effect of preventing the formation of voids.
Further, in the present embodiment, the suction member case 9 has a shape such that the cross-sectional area of the end face 16 on the inflow side is larger than the cross-sectional area of the end face 17 on the outflow side. Of the suction member case 9, at least on the inner surface substantially perpendicular to the water flow direction of the different-diameter portion 15 where the cross-sectional area changes, to the inner surface passing through the suction member 2 and substantially vertical to the water flow direction. It is preferable to provide a pressure loss reducing member 18 made of a nonwoven fabric or the like, which is capable of passing the reached raw water 5 with low resistance.
With this configuration, the same operation and effect as the water purifier 1 shown in FIG. 1 can be obtained.
The filter body 3, filter case 4, pressure loss reducing member 18, adsorption member case 9, gap filling member 10, outer case 13, and partition member 19 used in the water purifier 31 of the present embodiment are What was comprised similarly to each element demonstrated in the water purifier 1 shown in FIG. 1 can be used conveniently.
[0067]
EXAMPLES The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the present invention.
[0068]
(Examples 1 to 4)
Activated carbon (manufactured by Kuraray Chemical Co., Ltd., model number GW60 / 150) as an adsorbing member was placed inside a cylindrical adsorbing member case having a diameter of 75 mm and the packing density in a dry state was 0.55 g / cm. ³ 150 g to form an activated carbon layer.
The raw material outflow side of the adsorption member case filled with the activated carbon layer has a thickness of 10 mm in a state where no stress is applied, has elasticity, and its volume is reversibly changed by an externally applied stress. The gap filling member made of a nonwoven fabric capable of being compressed is disposed in a state of being compressed on the activated carbon layer side so that the compression amount becomes 3.5 mm, 4 mm, 5 mm, and 7 mm. At 20 ° C. and 0.1 MPa, an initial water flow rate of 6 L / min, a ceramic filter having a diameter of 62 mm and a length of 100 mm in the axial direction were disposed inside a filter case to produce a filter cartridge. It installed in the water purifier (Examples 1-4).
[0070]
(Comparative Example 1)
The inside of the adsorption member case is filled with the activated carbon layer under the same conditions, and the initial water flow rate is 6 L / min at 20 ° C. and 0.1 MPa, the diameter is 62 mm and the length in the axial direction is 20 MPa and 0.1 MPa. A filter cartridge was manufactured by disposing the filter cartridge together with a ceramic filter having a thickness of 100 mm inside the filter case, and this filter cartridge was installed in a water purifier (Comparative Example 1).
In this water purifier (Examples 1 to 4 and Comparative Example 1), ion-exchanged water adjusted to a total trihalomethane concentration of 100 ppm was used as raw water under the conditions of a water pressure of 0.05 MPa and 3 L / min. The total amount of discharged water from which the purified water can remove 80% or more of the trihalomethane contained in the raw water was measured. Table 1 shows the results.
[0072]
[Table 1]

All the water purifiers of the present embodiment (Examples 1 to 4) were able to treat 9000 L or more of raw water. The water purifier of Comparative Example 1 was unable to treat 80% or more of the trihalomethane when 4800 L of water was passed. In Comparative Example 1, an air gap was formed inside the filter case, and raw water preferentially passed through the air gap because the air flow resistance was low in this air gap, and the activated carbon layer was used uniformly. I understand that there is no.
[0074]
(Examples 5 to 8)
In the same manner as in Example 1, activated carbon (manufactured by Kuraray Chemical Co., Ltd., model number GW60 / 150) was placed as a suction member inside a cylindrical suction member case having a diameter of 75 mm and the packing density in a dry state was 0.55 g / cm. ³ 150 g to form an activated carbon layer.
As shown in FIGS. 7 to 10, the adsorbing member case filled with the activated carbon layer has at least an inner surface of the adsorbing member case 9 which is substantially perpendicular to the water flow direction of a portion having a different cross-sectional area where the cross-sectional area changes. A pressure loss reducing member 18 made of a nonwoven fabric capable of passing low-resistance raw water that has passed through the activated carbon layer and has reached the inner surface substantially perpendicular to the water flow direction is provided. A ceramic filter having an initial water flow rate of 6 L / min and a diameter of 62 mm and a length of 100 mm in the axial direction was disposed inside a filter case at 0.1 ° C. and 0.1 MPa to produce a filter cartridge. (Examples 5 to 8).
[0076]
(Comparative Example 2)
A pressure loss reducing member is provided only at the outlet of the adsorbing member case in the adsorbing member case filled with the activated carbon layer, and the obtained adsorbing member case is subjected to an initial flow rate of 6 L / min at 20 ° C. and 0.1 MPa. A filter cartridge was manufactured by disposing the filter cartridge together with a ceramic filter having a diameter of 62 mm and a length of 100 mm in the axial direction inside the filter case, and this filter cartridge was installed in a water purifier (Comparative Example 2).
In this water purifier (Examples 5 to 8 and Comparative Example 2), ion-exchanged water adjusted to a total trihalomethane concentration of 100 ppm was used as raw water under the conditions of a water pressure of 0.05 MPa and 3 L / min. The total amount of discharged water from which the purified water can remove 80% or more of the trihalomethane contained in the raw water was measured. Table 2 shows the results. In addition, the initial water flow rate of this water purifier (Examples 5 to 8 and Comparative Example 2) was measured. Table 2 shows the results.
[0078]
[Table 2]

All of the water purifiers of this embodiment (Examples 5 to 8) were able to treat 9200 L of raw water. The water purifier of Comparative Example 2 was unable to treat trihalomethane at 80% or more when 4800 L of water was passed. The water purifier of Comparative Example 2 has a very low initial water flow rate of 1.5 L / min and a high pressure loss of the filter cartridge. Therefore, the activated carbon layer filled in the adsorption member case is not used uniformly. I understand.
[0080]
As described above, according to the present invention, there is provided a water purifier having excellent purifying properties and water permeability and realizing space saving.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view schematically showing one embodiment of a water purifier of the present invention (first invention).
FIG. 2 is a perspective view schematically showing an adsorption member case used in an embodiment of the water purifier of the present invention (first invention).
FIG. 3 is a sectional view schematically showing an adsorption member case and a gap filling member used in an embodiment of the water purifier of the present invention (first invention).
FIG. 4 is a cross-sectional view schematically showing an adsorption member case and a gap filling member used in an embodiment of the water purifier of the present invention (first invention).
FIG. 5 is a sectional view schematically showing an adsorption member case and a gap filling member used in an embodiment of the water purifier of the present invention (first invention).
FIG. 6 is a cross-sectional view schematically showing one embodiment of the water purifier of the present invention (second invention).
FIG. 7 is a sectional view schematically showing an adsorption member case and a pressure loss reducing member used in a water purifier according to a fifth embodiment of the present invention.
FIG. 8 is a sectional view schematically showing an adsorption member case and a pressure loss reducing member used in a water purifier according to a sixth embodiment of the present invention.
FIG. 9 is a sectional view schematically showing an adsorption member case and a pressure loss reducing member used in a water purifier according to a seventh embodiment of the present invention.
FIG. 10 is a sectional view schematically showing an adsorption member case and a pressure loss reducing member used in a water purifier according to an eighth embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Water purifier, 2 ... Adsorption member, 2a ... First adsorption member, 2b ... Second adsorption member, 3 ... Filter body, 4 ... Filter case, 5 ... Raw water, 6 ... Purified water, 7 ... Inlet, 8 ... Outlet, 9 ... Adsorption member case, 10 ... Void filling member, 11 ... Introduction pipe, 12 ... Derivation pipe, 13 ... Outer case, 14 ... Filter cartridge, 15 ... Different diameter part, 16 ... Inflow side end face, Reference numeral 17 denotes an end face on the outflow side, 18 denotes a pressure loss reducing member, 19 denotes a partition member, 20 denotes an end portion, 21 denotes an outer peripheral wall, 31 denotes a water purifier, 33 denotes a plate-like member, 34 denotes an air vent path, and 35 denotes air. ... opening holes, 37 ... openings, 38 ... air vent covers.

Claims

An adsorbing member that purifies by adsorbing impurities contained in the raw water, a tubular filter body that purifies the raw water by filtering the raw water therein, and the adsorbing member and the filter main body are disposed therein. A water purifier comprising a raw water inlet and a filter case having a purified purified water outlet, wherein the adsorption member is held in a state of being filled in a water-permeable adsorption member case. Along with the suction member case is detachably disposed inside the filter case,
At a predetermined position inside the suction member case, a gap filling member having elasticity and capable of reversibly changing its volume by an externally applied stress is arranged in a state compressed to the suction member side. A water purifier characterized by being installed.

The shape of the suction member case is a cylindrical tube of a different diameter configured such that the cross-sectional area of the end face on the inflow side is larger than the cross-sectional area of the end face on the outflow side,
Of the inner surface of the suction member case, at least the inner surface substantially perpendicular to the water flow direction of the different diameter portion where the cross-sectional area changes, the inner surface passing through the suction member and reaching the inner surface substantially perpendicular to the water flow direction. The water purifier according to claim 1, further comprising a pressure loss reducing member capable of passing raw water with low resistance.

The water purifier according to claim 1, wherein the adsorption member is an activated carbon layer.

The water purifier according to any one of claims 1 to 3, wherein at least two types of suction members are held inside the suction member case as the suction members in a state partitioned by partition members.

5. The water purification device according to claim 4, wherein the adsorbing member includes a first adsorbing member having antibacterial property against bacteria by adding silver and a second adsorbing member having adsorbing property against heavy metal by adding bone charcoal. 6. vessel.

The water purifier according to claim 5, wherein a ratio of the first adsorption member and the second adsorption member is 5:95 to 95: 5 by mass ratio.

A cylindrical filter main body for purifying raw water by filtering inside the filter main body, and a filter case having an inlet for the raw water and an outlet for purified purified water, in which the filter main body is disposed, are provided. Water purifier,
The filter case has an opening at the end face on the outlet side, and is provided so as to close the opening of the filter case. A plate-shaped member having a corresponding shape, and an air vent path for discharging air inside the filter case from the opening of the plate-shaped member is formed so as to cover the opening of the plate-shaped member. A water purifier further comprising an air vent cover disposed in the water purifier.

The water purifier according to claim 7, further comprising: an adsorbing member that purifies the inside of the filter case by adsorbing impurities contained in the raw water.

The suction member is held in a state of being filled inside a water-permeable suction member case, and the suction member case is detachably disposed inside the filter case,
At a predetermined position inside the suction member case, a gap filling member having elasticity and capable of reversibly changing its volume by an externally applied stress is arranged in a state compressed to the suction member side. The water purifier according to claim 8, which is provided.

The shape of the suction member case is a cylindrical tube of a different diameter configured such that the cross-sectional area of the end face on the inflow side is larger than the cross-sectional area of the end face on the outflow side,
Of the inner surface of the suction member case, at least the inner surface substantially perpendicular to the water flow direction of the different diameter portion where the cross-sectional area changes, the inner surface passing through the suction member and reaching the inner surface substantially perpendicular to the water flow direction. The water purifier according to claim 9, further comprising a pressure loss reducing member capable of passing raw water with low resistance.

The water purifier according to any one of claims 8 to 10, wherein the adsorption member is an activated carbon layer.

The water purifier according to any one of claims 9 to 11, wherein at least two types of suction members are held inside the suction member case as the suction members in a state partitioned by a partition member.

The water purification device according to claim 12, wherein the adsorption member comprises a first adsorption member having antibacterial property against bacteria by adding silver and a second adsorption member having adsorbability to heavy metal by adding bone charcoal. vessel.

The water purifier according to claim 13, wherein a ratio of the first adsorption member and the second adsorption member is 5:95 to 95: 5 by mass ratio.

The water purifier according to claim 1, wherein the filter body is a ceramics filter.

The water purifier according to any one of claims 1 to 15, wherein the filter main body is disposed inside the filter case such that a flow direction of the raw water passing therethrough is horizontal.

The water purifier according to any one of claims 1 to 16, wherein the filter body has a structure for taking out the purified water from an end thereof.

The water purifier according to any one of claims 1 to 16, wherein the filter body has a structure for taking out the purified water from the outer peripheral wall side.