JP4318469B2

JP4318469B2 - Air washer using water drop remover

Info

Publication number: JP4318469B2
Application number: JP2003054121A
Authority: JP
Inventors: 正信斎藤; 弘茂市橋
Original assignee: Taikisha Ltd
Current assignee: Taikisha Ltd
Priority date: 2003-02-28
Filing date: 2003-02-28
Publication date: 2009-08-26
Anticipated expiration: 2023-02-28
Also published as: JP2004261706A

Description

【０００１】
【発明の属する技術分野】
本発明は空気通過路において通過空気中の水滴を捕捉する水滴除去装置、及び、それを用いたエアワッシャに関する。
【０００２】
【従来の技術】
従来、通過空気中の水滴を捕捉する水滴除去装置の１つとして、図７に示す如く、平面視断面形状を多段のジグザグ形状にした縦姿勢の多段屈折板２０を、空気流れ方向に沿う姿勢（すなわち、平面視においてジグザグ断面形状における各段の頂部が空気流れ方向に並ぶ姿勢）で、かつ、隣合う多段屈折板２０どうしの間に空気通過用の隙間を設けた平行配置で、空気流れ方向に対し直交する横方向に複数並べて、下流側水切部２１Ｂを形成し、そして、通過空気Ａ中の水滴を捕捉してその捕捉水滴を凝集により成長させる通気性の充填材層２１Ａ（例えば、繊維や細線からなるマット状や網状の層）を、空気流れ方向で下流側水切部２１Ｂの上流側に配置したものがある（下記の特許文献１〜３参照）。
【０００３】
また従来、この種の水滴除去装置を用いたエアワッシャとして、同図７に示す如く、空気流れ方向の上流側に向けて水Ｗを噴出する散水ノズル２２を設けるとともに、空気流れ方向で散水ノズル２２の下流側に上記の水滴除去装置２１（すなわち、多段屈折板２０で形成した下流側水切部２１Ｂとその上流側に配置した通気性充填材層２１Ａとからなる水滴除去装置）を配置し、そして、散水ノズル２２による噴出水Ｗの水滴のうち空気入口部にまで到達する水滴を捕捉する上流側水切部として、下流側の水滴除去装置２１における充填材層２１Ａと同様のマット状の通気性充填材層２３を空気入口部に配置したものがある（下記の特許文献３参照）。
【０００４】
【特許文献１】
実公昭５８−３０５９８号公報
【特許文献２】
特開昭６０−４４０１８号公報
【特許文献３】
特開平１０−１９２６４２号公報
【０００５】
【発明が解決しようとする課題】
上記した従来の水滴除去装置では、通気性の充填材層２１Ａで捕捉された空気中水滴の一部は蒸発を伴いながら充填材層２１Ａ中を流下して充填材層２１Ａの下端部から排出されるが、他の捕捉水滴は凝集により成長して大径化した状態で通過空気Ａに随伴して充填材層２１Ａから離脱し、この大径化した離脱水滴が多段屈折板２０からなる下流側水切部２１Ｂにおいて再捕捉される。
【０００６】
すなわち、この水滴除去装置では、上記の如く充填材層２１Ａで水滴を成長させて大径化させることにより、多段屈折板２０からなる下流側水切部２１Ｂの水滴捕捉効率を高め、これにより、充填材層２１Ａの段階で排出にまで至る水滴捕捉分と併せて装置全体としての水滴除去性能を高めるようにしている。
【０００７】
また、上記した従来のエアワッシャでは、散水ノズル２２による噴出水Ｗの水滴のうち空気入口部にまで到達する水滴を空気入口部の通気性充填材層２３（すなわち、前段の充填材層）により捕捉することで、空気入口部からの水滴漏出を防止するとともに、その前段充填材層２３を濡れ状態にするようにし、そして、下流側の水滴除去装置２１における充填材層２１Ａ（後段の充填材層）と同様に空気入口部における前段の充填材層２３を濡れ状態にすることで、通過空気Ａと水Ｗとの接触効率を高めて、通過空気Ａに対する加湿性能や浄化性能（すなわち、通過空気Ａ中に含まれる塵埃や有害ガスなどを除去して空気Ａを浄化する性能）を高めるようにしている。
【０００８】
しかし、上記した従来の水滴除去装置は基本的に、隣合う多段屈折板２０どうしの間に形成されるジグザグ状の隙間経路に空気Ａを通過させることで、多段屈折板２０の板面に対する空気中水滴の衝突の確率を高くして下流側水切部２１Ｂの水滴捕捉効率を確保する方式のものである為、多段屈折板２０の並置列からなる下流側水切部２１Ｂの空気通過抵抗が大きくて、また、その上流側に配置する充填材層２１Ａの空気通過抵抗が大きいこともあって、送風動力の節減を図りながら所要風量の空気Ａを処理するのに大きな空気通過断面積を要し、この為、装置が大型化する問題があった。
【０００９】
そしてまた、平面視断面形状を多段のジグザグ形状にした多段屈折板２０を用い、その多段屈折板２０を平面視でジグザグ断面形状における各段の頂部が空気流れ方向に並ぶ姿勢に配置して下流側水切部２１Ｂを形成する為、空気流れ方向における下流側水切部２１Ｂの長さ寸法が大きくなり、このことからも装置が大型化する問題があった。
【００１０】
一方、上記した従来のエアワッシャでは、空気流れ方向で散水ノズル２２の下流側に配置する水滴除去装置２１が上記の如く大型なものになる為、また、その水滴除去装置２１の充填材層２１Ａに加え同じく空気通過抵抗の大きい前段の充填材層２３を空気入口部に装備することで装置全体としての空気通過抵抗が一層大きくなる為、エアワッシャとしても装置が大型になる問題があった。
【００１１】
しかも、このように装置全体としての空気通過抵抗が大きいことが原因で大きな空気通過断面積を備えさせる為、空気Ａの通過風速Ｖが小さく制限されてしまい、この為、空気流れ方向の上流側に向けて水Ｗを噴出する状態に散水ノズル２２を配置することで噴出水Ｗと通過空気Ａとの接触効率の向上を図る（すなわち、空気流Ａに対向させる状態に噴出した水Ｗを空気流Ａにより向き反転させることで、その反転過程において噴出水Ｗを飛沫化し、この飛沫化により噴出水Ｗと通過空気Ａとの接触効率の向上を図る）にもかかわらず、空気通過風速が小さいことで噴出水Ａの飛沫化効率が低くなって、飛沫化による噴出水Ｗと通過空気Ａとの接触効率の向上をそれほど期待できなくなり、このことから、前述の如く空気入口部の前段充填材層２３を濡れ状態にすることで通過空気Ａと水Ｗとの接触効率を高めて通過空気Ａに対する加湿性能や浄化性能の向上を図るにしても、結局は、エアワッシャ全体としての水Ｗと通過空気Ａとの接触効率をそれほど高めることはできず、加湿性能や浄化性能の効果的な向上を期待できないのが実情であった。
【００１２】
以上の実情に鑑み、本発明の主たる課題は、合理的な装置構成を採ることで、水滴除去装置を用いたエアワッシャについて上記の如き問題を効果的に解消する点にある。
【００１３】
【課題を解決するための手段】
〔１〕請求項１に係る発明は水滴除去装置を用いたエアワッシャに係り、その特徴は、
一端側開口を空気入口とし他端側開口を空気出口とする横向き配置の装置ケース内において、
縦方向に延びる水滴捕捉用の細凸条を板幅方向に並べて表面に多数形成した平面視断面形状が「ヘ」の字状の縦姿勢の板状材を、平面視において「ヘ」の字状の断面形状における一端と頂部と他端とがその順に空気流れ方向に並ぶ姿勢で、かつ、隣合う板状材どうしの間に空気通過用の隙間を設けた平行配置で、空気流れ方向に対し直交する横方向に複数並べて、下流側水切部を形成し、
通過空気中の水滴を捕捉してその捕捉水滴を凝集により成長させる通気性の充填材層を、空気流れ方向で前記下流側水切部の上流側に近接させて配置し、
通過空気に対して水を散布する散水ノズルを空気流れ方向で前記充填材層の上流側に配置するとともに、この散水ノズルを空気流れ方向の上流側に向けて水を噴出する状態に配置し、
前記散水ノズルによる噴出水の水滴のうち空気入口部にまで到達する水滴を捕捉する上流側水切部を形成するのに、
縦方向に延びる水滴捕捉用の細凸条を板幅方向に並べて表面に多数形成した平面視断面形状が「ヘ」の字状の縦姿勢の板状材を、平面視において「ヘ」の字状の断面形状における一端と頂部と他端とがその順に空気流れ方向に並ぶ姿勢で、かつ、隣合う板状材どうしの間に空気通過用の隙間を設けた平行配置で、空気流れ方向に対し直交する横方向に複数並べて前記空気入口部に配置し、
前記下流側水切部を形成する前記板状材は、その平面視「へ」の字状の断面形状において空気流れ方向における一端と頂部との間の上流側辺部が空気流れ方向における頂部と他端との間の下流側辺部よりも空気流れ方向に対して急傾斜となる断面形状にし、
前記上流側水切部を形成する前記板状材は、その平面視「へ」の字状の断面形状において空気流れ方向における一端と頂部との間の上流側辺部が空気流れ方向における頂部と他端との間の下流側辺部よりも空気流れ方向に対して緩傾斜となる断面形状にしてある点にある。
【００１４】
つまり、この構成によれば、空気流れ方向において下流側水切部の上流側に配置した通気性充填材層で捕捉された空気中水滴の一部は蒸発を伴いながら充填材層中を流下して充填材層の下端部から排出されるが、他の捕捉水滴は凝集により成長して大径化した状態で通過空気に随伴して充填材層から離脱し、この大径化した離脱水滴が平面視断面形状「ヘ」の字状の板状材からなる下流側水切部において再捕捉される。
【００１５】
すなわち、先述した従来の水滴除去装置と同様、このように充填材層で水滴を成長させて大径化させることにより、下流側水切部の水滴捕捉効率を高めることができ、これにより、充填材層の段階で排出にまで至る水滴捕捉分と併せて装置全体としての水滴除去性能を高めることができる。
【００１６】
また、下流側水切部は基本的に、平面視断面形状が「ヘ」の字状の板状材どうしの間に形成される「へ」の字状の隙間経路の通過過程において通過空気中の水滴を板状材の表面に形成の細凸条に引っ掛ける形態で捕捉する方式にし、その細凸条を板幅方向（すなわち、空気流れ方向）に多数並べて形成することで、引っ掛けによる水滴の捕捉確率を高く確保するから、屈折部が一段だけの「へ」の字状断面形状の板状材を用いるものでありながらも下流側水切部の水滴捕捉効率を高く確保することができる。
【００１７】
そして、このように屈折部が一段だけの「へ」の字状断面形状の板状材を用いて下流側水切部を形成する構成であれば、上記の如く下流側水切部の水滴捕捉効率を高く確保して装置全体としての水滴除去性能を高く確保しながらも、先述した従来の水滴除去装置の如くジグザグ形状の多段屈折板を用いて下流側水切部を形成するに比べ、下流側水切部の空気通過抵抗を小さくすることができて、送風動力の節減を図りながら所要風量の空気を処理するのに要する空気通過断面積を小さくすることができ、また、空気流れ方向における下流側水切部の長さ寸法も小さくすることができ、これにより、従来の水滴除去装置に比べ装置を効果的に小型化することができる。
【００１８】
また、通過空気に対して水を散布する散水ノズルを空気流れ方向で前記充填材層の上流側に配置するからエアワッシャとして次の機能を得ることができる。
【００１９】
つまり、この構成によれば、空気流れ方向で散水ノズルの下流側に配置する水滴除去装置（すなわち、エアワッシャの空気出口から送出する処理済み空気に含まれる水滴を除去する水滴除去装置）を、前述の如く高い水滴除去性能を備えさせながらも効果的に小型化できることで、エアワッシャとしても、空気出口から送出する処理済み空気に含まれる水滴を効率的に除去し得るものにしながら、装置を効果的に小型化することができる。
【００２０】
また、下流側における水滴除去装置の通気性充填材層が水滴捕捉により濡れ状態になることで、この充填材層において通過空気と水とを効率良く接触させることができ、これにより、エアワッシャの通過空気に対する加湿性能や浄化性能も効果的に高めることができる。
【００２１】
また、前記散水ノズルを空気流れ方向の上流側に向けて水を噴出する状態に配置するから次の機能を得ることができる。
【００２２】
つまり、前記エアワッシャでは、前述の如く装置全体としての空気通過抵抗を小さくすることができて、所要風量の空気を処理するのに要する空気通過断面積を小さくし得ることで、前述した装置の小型化とともに空気の通過風速を大きくすることができる。したがって、上記の如く散水ノズルから空気流れ方向の上流側に向けて水を噴出させるようにすれば、噴出水を空気流により向き反転させる過程で、その噴出水を高速の空気流により効率良く飛沫化することができる。
【００２３】
そして、このように散水ノズルからの噴出水を効率良く飛沫化できることで、その飛沫化による噴出水と通過空気との接触効率の向上を効果的に達成することができ、このことから、前述の加湿性能や浄化性能の向上（すなわち、下流側の水滴除去装置における充填材層を濡れ状態にして通過空気と水との接触効率を高めることによる加湿性能や浄化性能の向上）と相俟って、エアワッシャの通過空気に対する加湿性能や浄化性能を一層効果的に高めることができる。
【００２４】
また、前記散水ノズルによる噴出水の水滴のうち空気入口部にまで到達する水滴を捕捉する上流側水切部を形成するのに、
縦方向に延びる水滴捕捉用の細凸条を板幅方向に並べて表面に多数形成した平面視断面形状が「ヘ」の字状の縦姿勢の板状材を、平面視において「ヘ」の字状の断面形状における一端と頂部と他端とがその順に空気流れ方向に並ぶ姿勢で、かつ、隣合う板状材どうしの間に空気通過用の隙間を設けた平行配置で、空気流れ方向に対し直交する横方向に複数並べて前記空気入口部に配置するから次の機能を得ることができる。
そして、前記下流側水切部を形成する前記板状材は、その平面視「へ」の字状の断面形状において空気流れ方向における一端と頂部との間の上流側辺部が空気流れ方向における頂部と他端との間の下流側辺部よりも空気流れ方向に対して急傾斜となる断面形状にし、
前記上流側水切部を形成する前記板状材は、その平面視「へ」の字状の断面形状において空気流れ方向における一端と頂部との間の上流側辺部が空気流れ方向における頂部と他端との間の下流側辺部よりも空気流れ方向に対して緩傾斜となる断面形状にする。
【００２５】
つまり、この構成では、空気流れ方向の上流側に向けて散水ノズルから噴出した噴出水の水滴のうちエアワッシャの空気入口部にまで到達する水滴を上流側水切部により捕捉することで、その空気入口部からの空気流れ方向上流側への水滴漏出を防止する。
【００２６】
そして、この上流側水切部を、高い水滴捕捉効率を備えながら空気通過抵抗が小さい前述の下流側水切部と同様の上記の如き平面視断面形状「へ」の字状の板状材の並置列により形成すれば、先述した従来のエアワッシャの如く下流側の水滴除去装置における充填材層と同様の通気性充填材層により上流側水切部を形成するのに比べ、上流側水切部の空気通過抵抗を小さくして装置全体としての空気通過抵抗を小さくすることができ、このことからも、所要風量の空気を処理するのに要する空気通過断面積を小さくすることができて装置を効果的に小型化し得るとともに、空気の通過風速を大きくして噴霧水の飛沫化促進により通過空気に対する加湿性能や浄化性能も効果的に高めることができる。
【００２７】
〔２〕請求項２に係る発明は、請求項１に係る発明の実施に好適な実施形態を特定するものであり、その特徴は、
前記上流側水切部を形成する前記板状材を、前記下流側水切部を形成する前記板状材よりも空気流れ方向における板幅の小さい板状材にしてある点にある。
【００２８】
つまり、この構成によれば、上流側水切部と下流側水切部との夫々を同等の板幅の板状材で形成するに比べ、空気流れ方向における上流側水切部の長さ寸法をを小さくすることができ、また、上流側水切部の空気通過抵抗を一層小さくして装置全体としての空気通過抵抗も一層小さくすることができ、これにより、装置の小型化を一層効果的に達成し得るとともに、噴霧水の飛沫化促進による加湿性能や浄化性能の向上も一層効果的に達成することができる。
【００２９】
なお、上流側水切部は空気流に逆らって空気入口部にまで到達する水滴のみを捕捉するから空気流に随伴する水滴を捕捉する下流側水切部に比べ一般に捕捉水滴量が少なく、縦姿勢の板状材を伝わらせて流下させる水量が少ない。したがって、上記の如く上流側水切部の形成板状材を下流側水切部の形成板状材よりも板幅の小さい板状材にしても、板状材の表面における水滴捕捉用の多数の細凸条が流下水膜中に水没してしまうことを十分に回避できて、その水没に原因する上流側水切部の水滴捕捉効率の低下を回避することができ、そのことで空気入口部からの水滴漏出を十分に防止することができる。
〔３〕請求項３に係る発明は、請求項２に係る発明の実施に好適な実施形態を特定するものであり、その特徴は、前記上流側水切部を形成する前記板状材の並置ピッチは、前記下流側水切部を形成する前記板状体の並置ピッチよりも小さくしてある点にある。
【００３０】
【発明の実施の形態】
図１，図２はエアワッシャを示し、角筒状の装置ケース１を横向きに配置して、その装置ケース１の一端側開口を空気入口２とし、他端側開口を空気出口３にしてある。
【００３１】
装置ケース１の内部には空気入口２に向けて水Ｗを噴出する多数の散水ノズル４を配置してあり、これら散水ノズル４から空気流Ａに対向させる状態で水Ｗを噴出させることにより、図３に示す如く、噴出水Ｗを空気流Ａによりラッパ状に向き反転させる過程で、その噴出水Ｗを空気流Ａにより効率的に飛沫化し、これにより、噴出水Ｗと通過空気Ａとの接触効率を高くする。
【００３２】
装置ケース１の内部において空気入口部には、散水ノズル４からの噴出水Ｗの水滴のうち空気流Ａに逆らって空気入口部にまで到達する水滴を捕捉する上流側水切部５を配置してあり、この上流側水切部５により空気入口２からの空気流れ方向上流側への水滴漏出を防止する。
【００３３】
また、装置ケース１の内部において空気出口部には、空気出口３から送出する処理済み空気Ａ′からそれに含まれる水滴を除去する水滴除去装置６を配置してあり、この水滴除去装置６は通気性の充填材層６Ａとそれに近接させて空気流れ方向の下流側に配置した下流側水切部６Ｂとで構成し、これら充填材層６Ａ及び下流側水切部６Ｂの夫々において通過空気Ａ中の水滴を捕捉する。
【００３４】
そして、装置ケース１の底部には、散水ノズル４からの噴出水Ｗのうち通過空気Ａ中を落下して装置ケース１の底部に至る水、上流側水切部５で捕捉された水滴の集合流下水、並びに、水滴除去装置６における充填材層６Ａと下流側水切部６Ｂの夫々で捕捉された水滴の集合流下水を受け入れる水槽７を設けてある。
【００３５】
水滴除去装置６の充填材層６Ａは、図４に示す如く、繊維状ステンレスを素材とする不織布状のシート状体８を複数枚重ね合わせたものを、その表裏に配置のステンレス製の保持用金網９により挟み込んだ構造にしてあり、この充填材層６Ａで捕捉された水滴の一部は蒸発を伴いながら充填材層６Ａ中を徐々に流下して上記水槽７に至り、他の捕捉水滴は凝集により成長して大径化した状態で通過空気Ａに随伴して充填材層６Ａから離脱する。
【００３６】
また、水滴除去装置６の下流側水切部６Ｂは、図５に示す如く、縦方向に延びる水滴捕捉用の細凸条１０ａを板幅方向に並べて表面に多数形成した平面視断面形状が「ヘ」の字状の縦姿勢の板状材１０を、平面視において「ヘ」の字状の断面形状における一端と頂部と他端とがその順に空気流れ方向に並ぶ姿勢で、かつ、隣合う板状材１０どうしの間に空気通過用の隙間を設けた平行配置で、空気流れ方向に対し直交する横方向に複数並べた構造にしてある。
【００３７】
すなわち、この下流側水切部６Ｂでは基本的に、平面視断面形状が「ヘ」の字状の板状材１０どうしの間に形成される「へ」の字状の隙間経路の通過過程において通過空気Ａ中の水滴を板状材表面の細凸条１０ａに引っ掛ける形態で捕捉し、細凸条１０ａを板幅方向（すなわち、空気流れ方向）に多数並べて形成することで、引っ掛けによる水滴の捕捉確率を高く確保する。
【００３８】
そして、先の充填材層６Ａにおいて捕捉水滴を大径化した状態で充填材層６Ａから離脱させて、その大径化した離脱水滴を下流側水切部６Ｂに再捕捉させることで、下流側水切部６Ｂの水滴捕捉効率を更に高めるようにし、これにより、充填材層６Ａの段階で水槽７への排出にまで至る水滴捕捉分と併せて水滴除去装置６全体としての水滴除去性能を高く確保する。
【００３９】
なお、下流側水切部６Ｂで捕捉した水滴は、各板状体１０の表面を伝いながら流下して水槽７へ排出される。また、１１は板状体１０の並置列を保持する保持枠である。
【００４０】
一方、上流側水切部５は水滴除去装置６の下流側水切部６Ｂとほぼ同様の構造、すなわち、図６に示す如く、縦方向に延びる水滴捕捉用の細凸条１２ａを板幅方向に並べて表面に多数形成した平面視断面形状が「ヘ」の字状の縦姿勢の板状材１２を、平面視において「ヘ」の字状の断面形状における一端と頂部と他端とがその順に空気流れ方向に並ぶ姿勢で、かつ、隣合う板状材１２どうしの間に空気通過用の隙間を設けた平行配置で、空気流れ方向に対し直交する横方向に複数並べ、この板状体１２の並置列を保持枠１３により保持した構造にしてある。
【００４１】
また、上流側水切部５を形成する板状体１２の空気流れ方向における板幅Ｌａは、下流側水切部６Ｂを形成する板状体１０の空気流れ方向における板幅Ｌｂよりも小さくするとともに、上流側水切部５における板状体１２の並置ピッチＰａは、下流側水切部６Ｂにおける板状体１０の並置ピッチＰｂよりも小さくしてある。
【００４２】
そしてまた、上流側水切部５を形成する板状材１２には、その「へ」の字状の平面視断面形状における頂部の凸側箇所に溝形成用の頂部凸条１２ｃを設け、この頂部凸条１２ｃにより、空気流れ方向の下流側に向かって開口する状態で縦方向に延びる頂部溝１２ｂを形成することで、散水ノズル４からの噴出水Ｗの水滴のうち空気流Ａに逆らって空気入口部にまで到達する水滴に対する捕捉効率を更に高めるようにしてある。
【００４３】
つまり、この種のエアワッシャとして従来は、図７に示す如く、平面視断面形状を多段のジグザグ形状にした縦姿勢の多段屈折板２０を、空気流れ方向に沿う姿勢（すなわち、平面視においてジグザグ断面形状における各段の頂部が空気流れ方向に並ぶ姿勢）で、かつ、隣合う多段屈折板２０どうしの間に空気通過用の隙間を設けた平行配置で、空気流れ方向に対し直交する横方向に複数並べて、下流側水切部２１Ｂを形成するとともに、通過空気Ａ中の水滴を捕捉してその捕捉水滴を凝集により成長させるマット状の通気性充填材層２１Ａを、空気流れ方向で下流側水切部２１Ｂの上流側に配置して、これら充填材層２１Ａと下流側水切部２１Ｂとで空気出口部における水滴除去装置２１を構成し、そして、散水ノズル２２から空気流れ方向の上流側に向けて噴出する噴出水Ｗの水滴のうち空気入口部にまで到達する水滴を捕捉する上流側水切部として、下流側の水滴除去装置２１における充填材層２１Ａと同様のマット状の通気性充填材層２３を空気入口部に配置したものがある。
【００４４】
しかし、この従来のエアワッシャに比べ、本実施形態で示した前記構成のエアワッシャによれば、空気出口３から送出する処理済み空気Ａ′に含まれる水滴を効率的に除去し得るものにしながらも、装置全体としての空気通過抵抗を小さくすることができて、所要風量の空気Ａを処理するのに要する空気通過断面積（すなわち、装置ケース１の横断開口面積）を小さくすることができ、これを主因として装置を小型化することができる。
【００４５】
また、このように空気通過抵抗を小さくして空気通過断面積を小さくし得ることで、装置の小型化とともに空気Ａの通過風速Ｖを大きくすることができ、これにより、散水ノズル４から空気流れ方向の上流側に向けて噴出する水Ｗの飛沫化を促進して、噴出水Ｗと通過空気Ａとの接触効率も高く確保することができる。
【００４６】
なお、この本実施形態で示したエアワッシャの具体的な諸元の一例としては次の例を挙げることができる。
上流側水切部５を形成する板状体１２の板幅Ｌａ＝８０ｍｍ
上流側水切部５における板状体１２の並置ピッチＰａ＝２２ｍｍ
下流側水切部６Ｂを形成する板状体１０の板幅Ｌｂ＝１９５ｍｍ
下流側水切部６Ｂにおける板状体１０の並置ピッチＰｂ＝２５ｍｍ
通気性充填材層６Ａの厚みＬｃ＝２５ｍｍ
空気Ａの通過風速Ｖ＝５ｍ／ｓ程度
（図７に示す従来エアワッシャの空気通過風速Ｖ＝２．５ｍ／ｓ程度）
なお、図５に示すように、下流側水切部６Ｂを形成する板状材１０は、その平面視「へ」の字状の断面形状において空気Ａの流れ方向における一端と頂部との間の上流側辺部が空気Ａの流れ方向における頂部と他端との間の下流側辺部よりも空気Ａの流れ方向に対して急傾斜となる断面形状にしてある。
また、図６に示すように、上流側水切部５を形成する板状材１２は、その平面視「へ」の字状の断面形状において空気Ａの流れ方向における一端と頂部との間の上流側辺部が空気Ａの流れ方向における頂部と他端との間の下流側辺部よりも空気Ａの流れ方向に対して緩傾斜となる断面形状にしてある。
【００４７】
〔別の実施形態〕
次に別実施形態を列記する。
【００４８】
下流側水切部６Ｂ及び上流側水切部５を形成する平面視断面形状「ヘ」の字状の板状材１０，１２の細部的な平面視断面形状（すなわち、空気流れ方向における上流側辺部と下流側辺部とが成す角度、表面に形成する細凸条１０ａ，１２ａの断面形状、板状体１０，１２の寸法に対する細凸条１０ａ，１２ａの寸法比、細凸条１０ａ，１２ａの並置箇所など）は、前述の実施形態で示した細部形状に限らず種々の変更が可能である。
【００４９】
前述の実施形態では、上流側水切部５を形成する板状材１２につき、その「へ」の字状の平面視断面形状における頂部の凸側箇所に溝形成用の頂部凸条１２ｃを設け、この頂部凸条１２ｃにより、空気流れ方向の下流側に向かって開口する状態で縦方向に延びる頂部溝１２ｂを形成するようにしたが、これら頂部凸条１２ｃ及び頂部溝１２ｂを省略した構造にしてもよく、また場合によっては、風切騒音の低減などを目的として、頂部凸条１２ｃにより、空気流れ方向の上流側に向かって開口する状態で縦方向に延びる気流対向状の頂部溝１２ｂを形成するようにしてもよい。
【００５０】
空気流れ方向で下流側水切部６Ｂの上流側に配置する通気性充填材層６Ａは、前述の実施形態で示した構造のものに限らず、通過空気Ａ中の水滴を捕捉してその捕捉水滴を凝集により成長させ得るものであれば、マット状構造のものや網体を重ねた構造のものなど、種々の構造のものを採用することができる。
【００５１】
前述の実施形態では、水滴除去装置をエアワッシャに装備した例を示したが、この水滴除去装置は、エアワッシャへの装備に限らず、通過空気中の水滴を除去する必要がある各種分野において使用することができる。
【００５２】
エアワッシャの用途は、空気の加湿や空気の浄化、あるいは、空気の温度調整や冷却による空気の除湿など、どのようなものであってもよい。
【図面の簡単な説明】
【図１】エアワッシャの側面視構造図
【図２】エアワッシャの平面視構造図
【図３】噴霧水の飛沫化形態を模式的に示す図
【図４】充填材層の構造を示す全体斜視図及び分解斜視図
【図５】下流側水切部の構造を示す全体斜視図及び拡大平面図
【図６】上流側水切部の構造を示す全体斜視図及び拡大平面図
【図７】従来の水滴除去装置及びエアワッシャの平面視構造図
【符号の説明】
２空気入口
３空気出口
１装置ケース
４散水ノズル
５上流側水切部
６水滴除去装置
６Ａ通気性充填材層
６Ｂ下流側水切部
１０板状材
１０ａ細凸条
１２板状材
１２ａ細凸条
Ａ空気
Ｌａ，Ｌｂ板幅
Ｗ水[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a water droplet removing device that captures water droplets in passing air in an air passage and an air washer using the same.
[0002]
[Prior art]
  Conventionally, as one of the water droplet removal devices that capture water droplets in the passing air, as shown in FIG. 7, a vertical multi-stage refracting plate 20 having a multi-stage zigzag cross-sectional shape in plan view is positioned along the air flow direction. (That is, the posture in which the tops of the steps in the zigzag cross-sectional shape are arranged in the air flow direction in plan view) and the parallel arrangement in which a gap for air passage is provided between adjacent multistage refracting plates 20. Arranged in the transverse direction orthogonal to the direction to form the downstream drainage portion 21B, and breathable filler layer 21A (for example, for capturing the water droplets in the passing air A and growing the captured water droplets by aggregation) A mat-like or net-like layer made of fibers or fine wires) is arranged on the upstream side of the downstream draining portion 21B in the air flow direction (see Patent Documents 1 to 3 below).
[0003]
  Conventionally, as an air washer using this type of water droplet removing device, as shown in FIG. 7, a watering nozzle 22 for ejecting water W toward the upstream side in the air flow direction is provided, and the water spray nozzle in the air flow direction is provided. 22 on the downstream side of the water droplet removing device 21 (that is, a water droplet removing device comprising a downstream draining portion 21B formed by the multistage refracting plate 20 and a breathable filler layer 21A disposed on the upstream side thereof), Then, as the upstream draining portion that captures the water droplets reaching the air inlet portion of the water droplets of the jet water W from the water spray nozzle 22, the mat-like air permeability similar to the filler layer 21A in the downstream water droplet removing device 21 is used. There exists what has arrange | positioned the filler layer 23 in the air inlet part (refer the following patent document 3).
[0004]
[Patent Document 1]
  Japanese Utility Model Publication No. 58-30598
[Patent Document 2]
  JP 60-44018 A
[Patent Document 3]
  JP-A-10-192642
[0005]
[Problems to be solved by the invention]
  In the conventional water droplet removing device described above, a part of the water droplets in the air captured by the breathable filler layer 21A flows down the filler layer 21A while being evaporated and is discharged from the lower end of the filler layer 21A. However, other trapped water droplets grow by agglomeration and leave the filler layer 21A along with the passing air A in a state where the diameter is increased and the diameter of the released water droplets downstream from the multistage refracting plate 20 increases. Re-captured at the draining portion 21B.
[0006]
  That is, in this water droplet removal apparatus, the water droplet capturing efficiency of the downstream draining portion 21B formed of the multistage refracting plate 20 is increased by growing the water droplets in the filler layer 21A and increasing the diameter as described above. The water droplet removal performance of the entire apparatus is enhanced together with the water droplet trapping amount that reaches the discharge at the stage of the material layer 21A.
[0007]
  Moreover, in the above-described conventional air washer, water droplets reaching the air inlet portion among the water droplets of the jet water W from the sprinkling nozzle 22 are caused by the air permeable filler layer 23 (that is, the preceding filler layer) of the air inlet portion. By capturing, water droplet leakage from the air inlet portion is prevented, the front filler layer 23 is made wet, and the filler layer 21A in the downstream water droplet removal apparatus 21 (the latter filler) In the same way as the layer), the front filler layer 23 at the air inlet is wetted to improve the contact efficiency between the passing air A and the water W, and the humidifying performance and the purifying performance (that is, the passing air A). The performance of purifying the air A by removing dust and harmful gas contained in the air A) is improved.
[0008]
  However, the conventional water drop removing device described above basically passes the air A through the zigzag gap path formed between the adjacent multistage refracting plates 20 so that the air with respect to the plate surface of the multistage refracting plate 20 is air. Since this is a system that increases the probability of collision of the middle water droplets and ensures the water droplet capturing efficiency of the downstream water drainage portion 21B, the air passage resistance of the downstream water drainage portion 21B composed of the juxtaposed rows of the multistage refracting plates 20 is large. In addition, since the air passage resistance of the filler layer 21A disposed on the upstream side thereof is large, a large air passage cross-sectional area is required to process the air A with the required air volume while reducing the blowing power. For this reason, there was a problem that the apparatus becomes large.
[0009]
  Further, the multistage refracting plate 20 having a multi-stage zigzag shape in cross-sectional view in plan view is used, and the multi-stage refracting plate 20 is arranged in a posture in which the tops of the steps in the zigzag cross-sectional shape are arranged in the air flow direction in the plan view. Since the side drainage portion 21B is formed, the length of the downstream drainage portion 21B in the air flow direction is increased, and this also causes a problem that the apparatus is increased in size.
[0010]
  On the other hand, in the above-described conventional air washer, the water droplet removing device 21 disposed on the downstream side of the water spray nozzle 22 in the air flow direction becomes large as described above, and the filler layer 21A of the water droplet removing device 21 is also provided. In addition, since the air inlet resistance of the entire apparatus is further increased by installing the upstream filler layer 23 having a large air passage resistance at the air inlet portion, there is a problem that the apparatus becomes large as an air washer.
[0011]
  In addition, since the air passage resistance as a whole of the apparatus is large as described above, the air passing velocity V of the air A is limited to be small, and therefore the upstream side in the air flow direction. The sprinkling nozzle 22 is arranged in a state in which the water W is ejected toward the air to improve the contact efficiency between the ejected water W and the passing air A (that is, the water W ejected in a state of being opposed to the air flow A is air By reversing the direction by the flow A, the squirting water W is splashed in the reversing process, and the contact efficiency between the squirting water W and the passing air A is improved by the splatting). As a result, the spraying efficiency of the squirting water A becomes low, and the improvement of the contact efficiency between the squirting water W and the passing air A due to the spraying cannot be expected so much. Even if the contact efficiency between the passing air A and the water W is increased by making the air passage 23 wet to improve the humidifying performance and the purification performance for the passing air A, the water W and the passage of the air washer as a whole are eventually passed. The actual situation is that contact efficiency with the air A cannot be increased so much, and an effective improvement in humidification performance and purification performance cannot be expected.
[0012]
  In view of the above circumstances, the main problem of the present invention is to adopt a rational device configuration,Air washer using water drop removerIs to effectively solve the above problems.
[0013]
[Means for Solving the Problems]
  [1] The invention according to claim 1Air washer using water drop removerThe feature is
  In a laterally arranged device case with one end side opening as an air inlet and the other end side opening as an air outlet,
  A plate-like material in a vertical position with a cross-sectional shape of “f” in plan view formed by arranging a large number of fine protrusions for capturing water droplets extending in the vertical direction on the surface in the width direction of the plate, In a posture in which one end, the top, and the other end of the cross-sectional shape are arranged in that order in the air flow direction, and in a parallel arrangement in which a gap for air passage is provided between adjacent plate-like materials, in the air flow direction. A plurality of rows in the transverse direction perpendicular to each other to form a downstream drainage section,
  A breathable filler layer that traps water droplets in the passing air and grows the trapped water droplets by agglomeration on the upstream side of the downstream drainage portion in the air flow direction.Placed close together,
  A sprinkling nozzle for spraying water to the passing air is disposed on the upstream side of the filler layer in the air flow direction, and the sprinkling nozzle is disposed in a state of ejecting water toward the upstream side in the air flow direction,
  To form an upstream drainage portion that captures water droplets reaching the air inlet portion of the water droplets ejected by the watering nozzle,
  A plate-like material in a vertical position with a cross-sectional shape of “f” in plan view formed by arranging a large number of fine protrusions for capturing water droplets extending in the vertical direction on the surface in the width direction of the plate, In a posture in which one end, the top, and the other end of the cross-sectional shape are arranged in that order in the air flow direction, and in a parallel arrangement in which a gap for air passage is provided between adjacent plate-like materials, in the air flow direction. A plurality of them arranged in the transverse direction perpendicular to each other and arranged in the air inlet part,
  The plate-like material forming the downstream drainage portion has an upstream side portion between one end and the top portion in the air flow direction in the cross-sectional shape of the letter “he” in plan view, and the other in the air flow direction. Make the cross-sectional shape steeply inclined with respect to the air flow direction than the downstream side part between the ends,
  The plate-like material forming the upstream drainage portion has a cross-sectional shape of a letter “F” in plan view, and the upstream side portion between one end and the top portion in the air flow direction is the top portion and the other in the air flow direction. It has a cross-sectional shape that is more gently inclined with respect to the air flow direction than the downstream side part between the ends.In the point.
[0014]
  In other words, according to this configuration, some of the water droplets in the air captured by the air-permeable filler layer arranged on the upstream side of the downstream drainage portion in the air flow direction flow down through the filler layer while being evaporated. The trapped water droplets are discharged from the lower end of the filler layer, but other trapped water droplets grow and grow in size in a state of increasing diameter and are separated from the filler layer along with the passing air. It is re-captured at the downstream drainage portion made of a plate-like material having a cross-sectional shape “f”.
[0015]
  That is, as in the conventional water droplet removing device described above, the water droplet capturing efficiency of the downstream drainage portion can be increased by growing the water droplets in the filler layer and increasing the diameter in this way. It is possible to enhance the water droplet removal performance of the entire apparatus together with the water droplet trapping amount that reaches the discharge at the layer stage.
[0016]
  In addition, the downstream drainage portion basically has a cross-sectional shape in plan view that is formed between the plate-shaped members having a “H” shape and passes through a “he” -shaped gap path formed between the plate-like materials. Captures water droplets by hooking them on the surface of the plate-like material in the form of being hooked on the thin ridges, and by forming a number of the thin ridges side by side in the plate width direction (that is, the air flow direction). Since the probability is ensured high, the water droplet trapping efficiency of the downstream drainage portion can be ensured high even though a plate-like material having a “H” -shaped cross section having only one refracting portion is used.
[0017]
  And if it is the structure which forms a downstream drainage part using the plate-shaped material of the shape of the shape of a "f" shape with only one step of a refracting part in this way, as mentioned above, the water droplet capture | acquisition efficiency of a downstream drainage part is improved. While ensuring high water droplet removal performance as a whole device, the downstream drainage portion is compared to forming the downstream drainage portion using a zigzag-shaped multistage refracting plate as in the conventional waterdrop removal device described above. The air passage resistance can be reduced, the air passage cross-sectional area required to process the required air volume while reducing the air blowing power can be reduced, and the downstream drainage portion in the air flow direction can be reduced. As a result, the apparatus can be effectively downsized as compared with the conventional water droplet removing apparatus.
[0018]
  Also,A watering nozzle that sprays water against the passing airSince it is arranged upstream of the filler layer in the air flow direction, the following function can be obtained as an air washer.
[0019]
  That is, according to this configuration, the water droplet removing device (that is, the water droplet removing device that removes water droplets contained in the processed air sent from the air outlet of the air washer) disposed downstream of the watering nozzle in the air flow direction is As mentioned aboveHighIt is possible to effectively reduce the size while providing water droplet removal performance, and even as an air washer, the device can be effectively removed while making it possible to efficiently remove water droplets contained in the processed air delivered from the air outlet. It can be downsized.
[0020]
  In addition, since the air-permeable filler layer of the water droplet removing device on the downstream side becomes wet by trapping the water droplets, the passing air and water can be efficiently contacted with each other in this filler layer. Humidification performance and purification performance for passing air can also be effectively enhanced.
[0021]
  Also,The watering nozzleSince it arrange | positions in the state which spouts water toward the upstream of an air flow direction, the following function can be obtained.
[0022]
  That meansAboveIn the air washer,asThe air passage resistance of the entire device can be reduced, and the air passage cross-sectional area required for processing the air of the required air volume can be reduced, so that the air passage wind speed is increased with the downsizing of the device described above. be able to. Therefore, if water is ejected from the watering nozzle toward the upstream side in the air flow direction as described above, the jet water is efficiently splashed by the high-speed air flow in the process of reversing the direction of the jet water by the air flow. Can be
[0023]
  And since the spray water from the watering nozzle can be efficiently sprayed in this way, it is possible to effectively achieve an improvement in the contact efficiency between the spray water and the passing air due to the spraying.The aboveCombined with improvement of humidification performance and purification performance (that is, improvement of humidification performance and purification performance by increasing the contact efficiency between the passing air and water by wetting the filler layer in the downstream water droplet removal device) Further, the humidification performance and purification performance of the air washer for the passing air can be more effectively enhanced.
[0024]
  Also,To form an upstream drainage portion that captures water droplets reaching the air inlet portion of the water droplets ejected by the watering nozzle,
  A plate-like material in a vertical position with a cross-sectional shape of “f” in plan view formed by arranging a large number of fine protrusions for capturing water droplets extending in the vertical direction on the surface in the width direction of the plate, In a posture in which one end, the top, and the other end of the cross-sectional shape are arranged in that order in the air flow direction, and in a parallel arrangement in which a gap for air passage is provided between adjacent plate-like materials, in the air flow direction. Arranged in the air inlet section side by side in the orthogonal directionTherefore, the following functions can be obtained.
  The plate-like material forming the downstream drainage portion is such that the upstream side portion between one end and the top portion in the air flow direction is the top portion in the air flow direction in the cross-sectional shape of the letter “he” in plan view. A cross-sectional shape that is steeply inclined with respect to the air flow direction than the downstream side portion between the second end and the other end,
  The plate-like material forming the upstream drainage portion has a cross-sectional shape of a letter “F” in plan view, and the upstream side portion between one end and the top portion in the air flow direction is the top portion and the other in the air flow direction. The cross-sectional shape has a gentler inclination with respect to the air flow direction than the downstream side portion between the ends.
[0025]
  That is, in this configuration, the water droplets reaching the air inlet portion of the air washer among the water droplets ejected from the water spray nozzle toward the upstream side in the air flow direction are captured by the upstream draining portion, thereby Prevents water droplet leakage from the inlet to the upstream side in the air flow direction.
[0026]
  Then, the upstream drainage section is arranged in parallel with a plate-like material having a cross-sectional shape “he” in plan view similar to the above-described downstream drainage section having a low water passage resistance while having high water droplet capture efficiency. In this case, the upstream drainage portion passes through the upstream drainage portion as compared to the case where the upstream drainage portion is formed of the same air-permeable filler layer as the filler layer in the downstream water droplet removal device like the conventional air washer described above. The resistance can be reduced and the air passage resistance of the entire device can be reduced. This also makes it possible to reduce the air passage cross-sectional area required for processing the air of the required air volume, thereby effectively reducing the device. While being able to downsize, the humidification performance and purification performance with respect to the passing air can be effectively enhanced by increasing the passing air speed of the air and promoting the spraying of the spray water.
[0027]
  [2] The invention according to claim 2 is the invention according to claim 1.The preferred embodiment for carrying out the invention according to the present invention is specified,
  The plate-like material forming the upstream drainage portion is a plate-like material having a smaller plate width in the air flow direction than the plate-like material forming the downstream drainage portion.
[0028]
  That is, according to this configuration, the length of the upstream drainage portion in the air flow direction is reduced compared to the case where each of the upstream drainage portion and the downstream drainage portion is formed of a plate-like material having the same plate width. In addition, the air passage resistance of the upstream drainage portion can be further reduced to further reduce the air passage resistance of the entire apparatus, and thereby the apparatus can be more effectively reduced in size. At the same time, the improvement of the humidification performance and purification performance by promoting the spraying of spray water can be achieved more effectively.
[0029]
  Since the upstream drainage section captures only water droplets that reach the air inlet section against the air flow, the amount of trapped water drops is generally smaller than that of the downstream drainage section that captures water droplets accompanying the air flow, and the vertical posture is The amount of water that flows down the plate material is small. Therefore, even if the plate-shaped material for the upstream drainage portion is a plate-like material having a smaller plate width than the plate-shaped material for the downstream drainage portion as described above, a large number of small droplets for capturing water droplets on the surface of the plate-shaped material are used. The ridges can be sufficiently avoided from being submerged in the falling water film, and the drop of the water droplet trapping efficiency at the upstream drainage caused by the submergence can be avoided. Water droplet leakage can be sufficiently prevented.
  [3] The invention according to claim 3 specifies a preferred embodiment for carrying out the invention according to claim 2, and is characterized by the juxtaposition pitch of the plate-like members forming the upstream draining portion. Is smaller than the juxtaposition pitch of the plate-like bodies forming the downstream drainage portion.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
  1 and 2 show an air washer, in which a rectangular tube-shaped device case 1 is disposed sideways, one end side opening of the device case 1 is an air inlet 2 and the other end side opening is an air outlet 3. .
[0031]
  A large number of watering nozzles 4 for jetting water W toward the air inlet 2 are arranged inside the device case 1, and by jetting water W in a state of facing the air flow A from these watering nozzles 4, As shown in FIG. 3, in the process of reversing the jet water W in a trumpet shape by the air flow A, the jet water W is efficiently splashed by the air flow A, whereby the jet water W and the passing air A Increase contact efficiency.
[0032]
  Inside the device case 1, an upstream draining portion 5 that captures water droplets that reach the air inlet portion against the air flow A among the water droplets of the jet water W from the sprinkling nozzle 4 is disposed in the air inlet portion. Yes, this upstream draining portion 5 prevents water droplet leakage from the air inlet 2 to the upstream side in the air flow direction.
[0033]
  In addition, a water droplet removing device 6 for removing water droplets contained in the processed air A ′ delivered from the air outlet 3 is disposed in the air outlet portion inside the device case 1, and this water droplet removing device 6 is ventilated. 6A and a downstream draining portion 6B disposed in the air flow direction in the vicinity thereof, and water droplets in the passing air A in each of the filler layer 6A and the downstream draining portion 6B. To capture.
[0034]
  Then, at the bottom of the device case 1, the water flowing from the sprinkling nozzle 4 in the passing air A to the bottom of the device case 1, and the collective flow of water droplets captured by the upstream draining portion 5 A water tank 7 is provided for receiving water and a collective sewage of water droplets captured by the filler layer 6A and the downstream draining portion 6B in the water droplet removing device 6.
[0035]
  As shown in FIG. 4, the filler layer 6 </ b> A of the water drop removing device 6 is for holding stainless steel in which a plurality of non-woven sheet-like bodies 8 made of fibrous stainless steel are stacked on the front and back sides. The structure is sandwiched between metal meshes 9, and some of the water droplets captured by the filler layer 6A gradually flow down through the filler layer 6A while evaporating and reach the water tank 7, and the other captured water droplets are In the state where it has grown and increased in size due to aggregation, it is separated from the filler layer 6A along with the passing air A.
[0036]
  Further, as shown in FIG. 5, the downstream draining portion 6B of the water droplet removing device 6 has a cross-sectional shape in plan view in which a large number of fine protrusions 10a for capturing water droplets extending in the vertical direction are arranged in the plate width direction and formed on the surface. The plate-like material 10 in the shape of “” in the vertical orientation is arranged so that one end, the top, and the other end of the cross-sectional shape in the shape of “F” are aligned in the air flow direction in that order, and adjacent plates A parallel arrangement is provided in which gaps for air passage are provided between the shaped members 10, and a plurality of them are arranged in a lateral direction orthogonal to the air flow direction.
[0037]
  In other words, the downstream drainage portion 6B basically passes in the process of passing through the “he” -shaped gap path formed between the plate-like materials 10 having a cross-sectional shape “F” in plan view. Capturing water droplets in the air A in a form that is hooked on the thin ridges 10a on the surface of the plate-like material, and forming a large number of thin ridges 10a arranged in the plate width direction (that is, the air flow direction) Ensure a high probability.
[0038]
  Then, the trapped water droplets are separated from the filler layer 6A in a state where the diameter of the trapped water droplets in the previous filler layer 6A is increased, and the downstream drainer 6B is recaptured by the downstream drainer 6B. The water droplet trapping efficiency of the portion 6B is further increased, thereby ensuring high water droplet removal performance as a whole of the water droplet removing device 6 together with the water droplet trapping portion that reaches the discharge to the water tank 7 at the stage of the filler layer 6A. .
[0039]
  The water droplets captured by the downstream draining part 6 </ b> B flow down along the surface of each plate-like body 10 and are discharged to the water tank 7. Reference numeral 11 denotes a holding frame that holds the juxtaposed rows of the plate-like bodies 10.
[0040]
  On the other hand, the upstream draining portion 5 has substantially the same structure as that of the downstream draining portion 6B of the water droplet removing device 6, that is, as shown in FIG. A plate-like material 12 having a vertical shape having a cross-sectional shape “F” formed on the surface in a vertical shape, and one end, a top portion, and the other end of the cross-sectional shape having a “H” shape in a plan view in the order of air. A plurality of the plate-like bodies 12 are arranged in the horizontal direction perpendicular to the air flow direction in a parallel arrangement in which the air passage gap is provided between the adjacent plate-like materials 12 in a posture aligned in the flow direction. The juxtaposed row is held by the holding frame 13.
[0041]
  Further, the plate width La in the air flow direction of the plate-like body 12 forming the upstream drainage portion 5 is made smaller than the plate width Lb in the air flow direction of the plate-like body 10 forming the downstream drainage portion 6B, and The juxtaposition pitch Pa of the plate-like bodies 12 in the upstream draining portion 5 is smaller than the juxtaposition pitch Pb of the plate-like bodies 10 in the downstream draining portion 6B.
[0042]
  In addition, the plate-like material 12 forming the upstream draining portion 5 is provided with a top protrusion 12c for forming a groove at the convex side portion of the top in the cross-sectional shape of the “H” shape in plan view. By forming the top groove 12b extending in the longitudinal direction in a state of opening toward the downstream side in the air flow direction by the ridges 12c, air against the air flow A among the water droplets of the jet water W from the watering nozzle 4 The trapping efficiency for water droplets reaching the inlet is further increased.
[0043]
  That is, as an air washer of this type, as shown in FIG. 7, a vertical multi-stage refracting plate 20 having a cross-sectional shape in a plan view having a multi-stage zigzag shape is conventionally provided in a posture along the air flow direction (that is, zig-zag in a plan view). In a cross-sectional shape in which the tops of the respective steps are arranged in the air flow direction), and in a parallel arrangement in which a gap for passing air is provided between adjacent multistage refracting plates 20, the transverse direction orthogonal to the air flow direction The mat-like air-permeable filler layer 21A that forms a downstream drainage portion 21B and captures water droplets in the passing air A and grows the trapped water droplets by agglomeration is formed in the downstream drainage direction in the air flow direction. Disposed on the upstream side of the portion 21B, the filler layer 21A and the downstream draining portion 21B constitute a water droplet removing device 21 at the air outlet, and the air flow from the watering nozzle 22 As an upstream drainage portion that captures water droplets that reach the air inlet portion out of the water droplets of the jet water W that spouts toward the upstream side, a mat-like shape similar to the filler layer 21A in the downstream water droplet removal device 21 Some have a breathable filler layer 23 disposed at the air inlet.
[0044]
  However, compared to this conventional air washer, the air washer having the above-described configuration shown in the present embodiment can efficiently remove water droplets contained in the processed air A ′ delivered from the air outlet 3. However, the air passage resistance of the entire apparatus can be reduced, and the air passage cross-sectional area required for processing the air A having the required air volume (that is, the transverse opening area of the apparatus case 1) can be reduced. The apparatus can be downsized mainly due to this.
[0045]
  In addition, since the air passage resistance can be reduced and the air passage cross-sectional area can be reduced in this way, the air flow velocity V of the air A can be increased along with the downsizing of the device, whereby the air flow from the watering nozzle 4 can be increased. The spraying of the water W ejected toward the upstream side in the direction can be promoted, and the contact efficiency between the ejected water W and the passing air A can be ensured high.
[0046]
  In addition, the following example can be given as an example of specific specifications of the air washer shown in this embodiment.
    Plate width La of the plate-like body 12 forming the upstream draining portion 5 = 80 mm
    The juxtaposition pitch Pa of the plate-like body 12 in the upstream drainer 5 is 22 mm.
    Plate width Lb = 195 mm of the plate-like body 10 forming the downstream draining portion 6B
    The juxtaposition pitch Pb of the plate-like body 10 in the downstream draining part 6B = 25 mm
    Breathable filler layer 6A thickness Lc = 25 mm
    Air A passing wind speed V = about 5m / s
    (Air passing wind speed V = 2.5 m / s of the conventional air washer shown in FIG. 7)
  As shown in FIG. 5, the plate-like material 10 forming the downstream draining portion 6B is upstream of one end and the top in the flow direction of the air A in the cross-sectional shape of the letter “he” in plan view. The side portion has a cross-sectional shape that is inclined more steeply with respect to the flow direction of air A than the downstream side portion between the top and the other end in the flow direction of air A.
  Further, as shown in FIG. 6, the plate-like material 12 forming the upstream draining portion 5 is upstream of one end and the top in the flow direction of the air A in the “H” -shaped cross-sectional shape in plan view. The side portion has a cross-sectional shape that is more gently inclined with respect to the flow direction of the air A than the downstream side portion between the top and the other end in the flow direction of the air A.
[0047]
  [Another embodiment]
  Next, another embodiment will be listed.
[0048]
  Plan-view cross-sectional shape “f” -shaped plate-like members 10 and 12 that form the downstream-side drainage portion 6B and the upstream-side drainage portion 5 (that is, the upstream side portion in the air flow direction) And the downstream side portion, the cross-sectional shape of the thin ridges 10a and 12a formed on the surface, the dimensional ratio of the thin ridges 10a and 12a to the dimensions of the plate-like bodies 10 and 12, the thin ridges 10a and 12a The juxtaposed portion and the like are not limited to the detailed shape shown in the above-described embodiment, and various changes can be made.
[0049]
  In the above-described embodiment, for the plate-like material 12 that forms the upstream draining portion 5, the top protrusion 12c for groove formation is provided at the convex side portion of the top in the plan view cross-sectional shape of the `` he ''. The top ridges 12c form the top grooves 12b extending in the longitudinal direction in a state of opening toward the downstream side in the air flow direction, but the top ridges 12c and the top grooves 12b are omitted. In some cases, for the purpose of reducing wind noise, etc., the top ridge 12c forms a top groove 12b opposite to the airflow that extends in the longitudinal direction while opening toward the upstream side in the air flow direction. You may make it do.
[0050]
  The air-permeable filler layer 6A disposed on the upstream side of the downstream draining portion 6B in the air flow direction is not limited to the structure shown in the above-described embodiment, but captures water droplets in the passing air A and captures the captured water droplets. As long as the material can be grown by agglomeration, various structures such as a mat-like structure or a structure in which nets are stacked can be employed.
[0051]
  In the previous embodimentThe waterAn example of installing a drop removal device on an air washer was shown.thisThe water drop removing device is not limited to the equipment provided to the air washer, and can be used in various fields where it is necessary to remove water drops in the passing air.
[0052]
  The use of the air washer may be anything such as air humidification and air purification, or air dehumidification by adjusting the air temperature and cooling.
[Brief description of the drawings]
FIG. 1 is a side view structure diagram of an air washer.
[Fig. 2] Plan view structural diagram of air washer
FIG. 3 is a diagram schematically showing the spraying form of spray water
FIG. 4 is an overall perspective view and an exploded perspective view showing a structure of a filler layer.
FIG. 5 is an overall perspective view and an enlarged plan view showing a structure of a downstream draining portion.
FIG. 6 is an overall perspective view and an enlarged plan view showing the structure of an upstream draining portion.
FIG. 7 is a plan view structural diagram of a conventional water drop removing device and air washer.
[Explanation of symbols]
    2            Air inlet
    3            Air outlet
    1            Device case
    4 Watering nozzle
    5 Drainage section on the upstream side
    6 Water drop remover
    6A Breathable filler layer
    6B Downstream drainer
    10 Plate material
    10a Fine ridge
    12 Plate material
    12a Fine ridge
    A Air
    La, Lb Plate width
    W Water

Claims

In a laterally arranged device case with one end side opening as an air inlet and the other end side opening as an air outlet,
A plate-like material in a vertical position with a cross-sectional shape of “f” in plan view formed by arranging a large number of fine protrusions for capturing water droplets extending in the vertical direction on the surface in the width direction of the plate, In a posture in which one end, the top, and the other end of the cross-sectional shape are arranged in that order in the air flow direction, and in a parallel arrangement in which a gap for air passage is provided between adjacent plate-like materials, in the air flow direction. A plurality of rows in the transverse direction perpendicular to each other to form a downstream drainage section,
A breathable filler layer that captures water droplets in the passing air and grows the captured water droplets by aggregation is disposed close to the upstream side of the downstream drainage portion in the air flow direction ,
A sprinkling nozzle for spraying water to the passing air is disposed on the upstream side of the filler layer in the air flow direction, and the sprinkling nozzle is disposed in a state of ejecting water toward the upstream side in the air flow direction,
To form an upstream drainage portion that captures water droplets reaching the air inlet portion of the water droplets ejected by the watering nozzle,
A plate-like material in a vertical position with a cross-sectional shape of “f” in plan view formed by arranging a large number of fine protrusions for capturing water droplets extending in the vertical direction on the surface in the width direction of the plate, In a posture in which one end, the top, and the other end of the cross-sectional shape are arranged in that order in the air flow direction, and in a parallel arrangement in which a gap for air passage is provided between adjacent plate-like materials, in the air flow direction. A plurality of them arranged in the transverse direction perpendicular to each other and arranged in the air inlet part,
The plate-like material forming the downstream drainage portion has an upstream side portion between one end and the top portion in the air flow direction in the cross-sectional shape of the letter “he” in plan view, and the other in the air flow direction. Make the cross-sectional shape steeply inclined with respect to the air flow direction than the downstream side part between the ends,
The plate-like material forming the upstream drainage portion has a cross-sectional shape of a letter “F” in plan view, and the upstream side portion between one end and the top portion in the air flow direction is the top portion and the other in the air flow direction. An air washer using a water droplet removal device having a cross-sectional shape that is more gently inclined with respect to the air flow direction than the downstream side portion between the ends.

The water droplet removing apparatus according to claim 1, wherein the plate-like material forming the upstream drainage portion is a plate-like material having a plate width smaller in the air flow direction than the plate-like material forming the downstream drainage portion. Air washer using

The air using the water drop removing device according to claim 2, wherein the juxtaposition pitch of the plate-like members forming the upstream drainage portion is smaller than the juxtaposition pitch of the plate-like members forming the downstream drainage portion. Washer.