JP2001198411A - Laminated filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized laminated filter for cleaning a fluid, reduced in pressure loss, high in regeneration ratio and easy to manufacture. SOLUTION: A plurality of ring-shaped filter members 1, which have a large number of through-pores 1a with a pore size larger than a particle size of suspended matter formed therein so that the pore axes of them are arranged in the thickness direction thereof and have notches formed in the inner and outer peripheral end parts thereof, are laminated and the formed laminate is held between an upper press plate 7 provided with an inflow port 7-1 and a lower press plate 8 provided with outflow ports 8-1 on both sides thereof, and fan-shaped openings 3 for forming the communication passages 6 communicating with the outflow ports 8-1 when the filter members 1 are laminated, are formed between the inner and outer peripheral end parts of the filter members 1 so as to provide notches in the inner and outer peripheral end parts, and a liquid to be treated is introduced from inner and outer peripheral lamination surfaces to be allowed to flow out of the outflow ports 8-1.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、リング状の平面形
状を持つ濾過体を複数枚積層した水やその他の流体浄化
用の積層フィルターに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated filter for purifying water and other fluids, in which a plurality of filter bodies having a ring-like planar shape are laminated.

【０００２】[0002]

【従来の技術】平板状の濾過体を複数枚積層することで
積層フィルターを構成し、濾過体の積層方向に対して垂
直方向から被処理液を導入して濾過する濾過装置が従来
から利用されている。このような積層フィルターとして
は、たとえば特開平１０−５２６０８号公報等に記載さ
れたものがある。そして、この公報に開示されているよ
うに、濾過体としては多孔性濾過材のような微細な孔を
有したものが一般的に用いられている。2. Description of the Related Art Conventionally, a filtering device has been used in which a laminated filter is formed by laminating a plurality of flat filter bodies, and a liquid to be treated is introduced and filtered from a direction perpendicular to the laminating direction of the filter bodies. ing. As such a laminated filter, there is a filter described in, for example, JP-A-10-52608. As disclosed in this publication, a filter having fine pores such as a porous filter medium is generally used as a filter.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、従来か
ら平板状濾過体として用いられる多孔性濾過材は、微細
な孔や窪みが懸濁物よりも小さく、懸濁物はこの孔や窪
み中に水流によって押し込まれて圧縮状態で捕捉され
る。よって、多孔性濾過材から成る濾過体は目詰まりを
起こしやすい。目詰まった場合では、水流やその他の物
理的手段によるものでは再生率が低く、化学薬品を用い
るか濾過体を交換するしかない。However, the porous filter material conventionally used as a flat filter has fine pores and depressions smaller than the suspended material, and the suspended material has water flowing through the pores and depressions. And is captured in a compressed state. Therefore, the filter body made of the porous filter medium is easily clogged. In the case of clogging, the rate of regeneration is low by water flow or other physical means, and the only alternative is to use chemicals or replace the filter.

【０００４】また、積層フィルターを小型化するために
は、濾過面積や通路及び被処理液の流入孔と流出孔を増
やす必要がある。このように流入孔と流出孔を増やすに
は、各濾過体を薄くして積層方向に対して同じ高さで多
くの濾過体を積層することが有効である。しかしなが
ら、多孔性濾過材は厚みが薄い場合や孔を支える中実部
が細い場合には、濾過体が脆くなって強度不足を招く。
更に、多孔性の濾過材は、微細孔や窪みの孔径を制御し
て管理することは非常に難しく、製造方法も複雑で煩雑
になりやすい。Further, in order to reduce the size of the laminated filter, it is necessary to increase the filtration area, the passage, and the inflow and outflow holes of the liquid to be treated. In order to increase the number of inflow holes and outflow holes, it is effective to reduce the thickness of each filter and to stack many filters at the same height in the stacking direction. However, when the porous filter medium has a small thickness or a thin solid portion that supports the pores, the filter body becomes brittle, resulting in insufficient strength.
Furthermore, it is very difficult to control and manage the pore size of the micropores and depressions of the porous filter medium, and the production method is also complicated and complicated.

【０００５】このように、多孔性濾過材を濾過体として
用いる従来の積層フィルターでは、目詰まり処理の再生
率が低く製造面での障害も大きいという問題がある。[0005] As described above, the conventional laminated filter using the porous filter medium as a filter has a problem that the regeneration rate of the clogging treatment is low and the obstacle in the production is large.

【０００６】本発明は、小型でしかも圧力損失が小さく
しかも再生率が高く製造も容易な流体浄化用の積層フィ
ルターを提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a laminated filter for purifying fluid which is small, has a small pressure loss, has a high regeneration rate, and is easy to manufacture.

【０００７】[0007]

【課題を解決するための手段】本発明は、懸濁物の粒子
径よりも大きな孔径の貫通孔が厚み方向に孔軸を向けて
複数形成され、内周端部と外周端部にそれぞれ切欠きが
形成されたリング状の濾過体が複数枚積層されるととも
に、第１開口が形成された第１非透過性支持板と第２開
口が形成された第２非透過性支持板とで積層体の両側が
挟持された積層フィルターであって、前記濾過体の内周
端部と外周端部の間には、積層したとき前記第２開口と
連通する連通路を前記積層体に形成するための連通開口
が周囲に切欠きを備えてそれぞれ形成され、被処理液が
内周積層面と外周積層面から流入して、前記第２開口か
ら流出する構成としたことを特徴とする。According to the present invention, a plurality of through-holes having a diameter larger than the particle diameter of the suspension are formed with the hole axis directed in the thickness direction, and the through-holes are cut at the inner peripheral end and the outer peripheral end, respectively. A plurality of ring-shaped filters having notches are laminated, and a first non-permeable support plate having a first opening and a second non-permeable support plate having a second opening are laminated. A laminated filter in which both sides of the body are sandwiched, between the inner peripheral end and the outer peripheral end of the filter body, a communication passage communicating with the second opening when laminated is formed in the laminated body. Are formed with notches in the periphery, respectively, so that the liquid to be treated flows in from the inner peripheral laminated surface and the outer peripheral laminated surface and flows out from the second opening.

【０００８】本発明によれば、小型でしかも圧力損失が
小さくしかも再生率が高く製造も容易な流体浄化用の積
層フィルターが得られる。According to the present invention, it is possible to obtain a laminated filter for purifying fluid which is small, has a small pressure loss, has a high regeneration rate, and is easy to manufacture.

【０００９】また、懸濁物の粒子径よりも大きな孔径の
貫通孔が厚み方向に孔軸を向けて複数形成され、内周端
部と外周端部にそれぞれ切欠きが形成されたリング状の
濾過体が複数枚積層されるとともに、第１開口が形成さ
れた第１非透過性支持板と第２開口が形成された第２非
透過性支持板とで積層体の両側が挟持された積層フィル
ターであって、前記濾過体の内周端部と外周端部の間に
は、積層したとき前記第２開口と連通する連通路を前記
積層体に形成するための連通開口が周囲に切欠きを備え
てそれぞれ形成され、被処理液が前記第２開口から流入
して、前記内周積層面と前記外周積層面から流出する構
成としてもよい。In addition, a plurality of through-holes having a diameter larger than the particle diameter of the suspension are formed with the hole axis directed in the thickness direction, and a notch is formed at each of an inner peripheral end and an outer peripheral end. A laminate in which a plurality of filter bodies are laminated, and both sides of the laminate are sandwiched between a first non-permeable support plate having a first opening and a second non-permeable support plate having a second opening. A filter, wherein a communication opening for forming a communication passage communicating with the second opening when the filter is laminated is formed between the inner peripheral end and the outer peripheral end of the filter body. And the liquid to be treated may flow in from the second opening and flow out of the inner peripheral laminated surface and the outer peripheral laminated surface.

【００１０】このような構成においても、同様に、小型
でしかも圧力損失が小さくしかも再生率が高く製造も容
易な流体浄化用の積層フィルターが得られる。[0010] Even in such a configuration, similarly, a laminated filter for fluid purification which is small, has a small pressure loss, has a high regeneration rate, and is easy to manufacture can be obtained.

【００１１】[0011]

【発明の実施の形態】請求項１に記載の発明は、懸濁物
の粒子径よりも大きな孔径の貫通孔が厚み方向に孔軸を
向けて複数形成され、内周端部と外周端部にそれぞれ切
欠きが形成されたリング状の濾過体が複数枚積層される
とともに、第１開口が形成された第１非透過性支持板と
第２開口が形成された第２非透過性支持板とで積層体の
両側が挟持された積層フィルターであって、前記濾過体
の内周端部と外周端部の間には、積層したとき前記第２
開口と連通する連通路を前記積層体に形成するための連
通開口が周囲に切欠きを備えてそれぞれ形成され、被処
理液が内周積層面と外周積層面から流入して、前記第２
開口から流出する構成としたことを特徴とする積層フィ
ルターであり、第１開口から第２開口に向かう被処理液
に対する濾過面積が増大し圧力損失を低減できるという
作用を有する。DETAILED DESCRIPTION OF THE INVENTION According to the first aspect of the present invention, a plurality of through-holes having a diameter larger than the particle diameter of the suspension are formed in the thickness direction with the hole axis oriented, and the inner peripheral end and the outer peripheral end are formed. A plurality of ring-shaped filter bodies each having a notch formed thereon are laminated, and a first non-permeable support plate having a first opening formed therein and a second non-permeable support plate having a second opening formed therein And a laminated filter having both sides of the laminated body sandwiched between the filter body and the inner peripheral end portion and the outer peripheral end portion of the filter body.
A communication opening for forming a communication passage communicating with the opening in the laminate is formed with a notch in the periphery thereof, and the liquid to be treated flows in from the inner peripheral laminating surface and the outer peripheral laminating surface.
A multilayer filter characterized by having a configuration of flowing out of an opening, which has an effect of increasing a filtration area for a liquid to be treated going from a first opening to a second opening and reducing pressure loss.

【００１２】請求項２に記載の発明は、懸濁物の粒子径
よりも大きな孔径の貫通孔が厚み方向に孔軸を向けて複
数形成され、内周端部と外周端部にそれぞれ切欠きが形
成されたリング状の濾過体が複数枚積層されるととも
に、第１開口が形成された第１非透過性支持板と第２開
口が形成された第２非透過性支持板とで積層体の両側が
挟持された積層フィルターであって、前記濾過体の内周
端部と外周端部の間には、積層したとき前記第２開口と
連通する連通路を前記積層体に形成するための連通開口
が周囲に切欠きを備えてそれぞれ形成され、被処理液が
前記第２開口から流入して、前記内周積層面と前記外周
積層面から流出する構成としたことを特徴とする積層フ
ィルターであり、第２開口から第１開口に向かう被処理
液に対する濾過面積が増大し圧力損失を低減できるとい
う作用を有する。According to a second aspect of the present invention, a plurality of through-holes having a diameter larger than the particle diameter of the suspension are formed so as to face the hole axis in the thickness direction, and notches are respectively formed at the inner peripheral end and the outer peripheral end. A plurality of ring-shaped filter bodies on which are formed are laminated, and a first non-permeable support plate having a first opening and a second non-permeable support plate having a second opening are laminated. Is a laminated filter sandwiched on both sides of the filter body, between the inner peripheral end and the outer peripheral end of the filter body for forming a communication passage communicating with the second opening when laminated in the laminated body A communication opening formed with a notch in the periphery thereof, wherein the liquid to be treated flows in from the second opening and flows out from the inner peripheral laminated surface and the outer peripheral laminated surface. And the filtration area for the liquid to be treated from the second opening toward the first opening. It increased with the effect of reducing the pressure loss.

【００１３】請求項３に記載の発明は、前記濾過体の前
記連通開口がリング状に配列された複数の扇形開口であ
って、隣接する扇形開口間の仕切幅が前記扇形開口の半
径方向中間位置における周方向長さより短いことを特徴
とする請求項１または２に記載の積層フィルターであ
り、濾過体をランダムに積層しても必ず扇形開口による
連通路を形成できるという作用を有する。According to a third aspect of the present invention, the communication openings of the filter are a plurality of fan-shaped openings arranged in a ring shape, and a partition width between adjacent fan-shaped openings is radially intermediate between the fan-shaped openings. The multilayer filter according to claim 1 or 2, wherein the filter is shorter than a circumferential length at a position, and has an effect that a communication path by a fan-shaped opening can always be formed even when filter bodies are stacked at random.

【００１４】請求項４に記載の発明は、前記濾過体が周
方向に任意の積層角度で積層されていることを特徴とす
る請求項３記載の積層フィルターであり、製造時の工程
数を削減することができるという作用を有する。According to a fourth aspect of the present invention, there is provided the laminated filter according to the third aspect, wherein the filter bodies are laminated at an arbitrary laminating angle in a circumferential direction, and the number of steps in manufacturing is reduced. Has the effect of being able to

【００１５】請求項５に記載の発明は、前記濾過体が周
方向に一致した所定の積層角度で前記扇形開口を整合し
て積層され、前記連通路が厚み方向に伸びた孔を形成し
ていることを特徴とする請求項３記載の積層フィルター
であり、最大の通路面積を確保することができ圧力損失
を低減することができるという作用を有する。According to a fifth aspect of the present invention, the filter body is laminated with the fan-shaped openings aligned at a predetermined lamination angle coinciding with the circumferential direction, and the communication path forms a hole extending in the thickness direction. The laminated filter according to claim 3, wherein a maximum passage area can be secured and a pressure loss can be reduced.

【００１６】請求項６に記載の発明は、前記外周端部と
前記扇形開口の半径方向幅と、前記内周端部と前記扇形
開口の半径方向幅とが同一幅であることを特徴とする請
求項３から５のいずれかに記載の積層フィルターであ
り、被処理液がチャネリングを起こさずに流入面を有効
に使用することができるという作用を有する。The invention according to claim 6 is characterized in that the radial width of the outer peripheral end and the sector opening is the same as the radial width of the inner peripheral end and the sector opening. The multilayer filter according to any one of claims 3 to 5, wherein the liquid to be treated can effectively use an inflow surface without causing channeling.

【００１７】請求項７に記載の発明は、前記濾過体の前
記外周端部と前記内周端部の形状が中心を一致させた正
多角形であって、前記連通開口が各辺に沿って配設され
ていることを特徴とする請求項１または２記載の積層フ
ィルターであり、連通開口に規則性を持たせ濾過体を積
層することが容易になるという作用を有する。According to a seventh aspect of the present invention, the shape of the outer peripheral end and the inner peripheral end of the filter body is a regular polygon having the same center, and the communication opening extends along each side. The laminated filter according to claim 1 or 2, wherein the laminated filter has regularity in the communication opening, and has an effect of easily laminating the filter.

【００１８】本発明において、孔軸とは貫通孔の各断面
を中心を結んだ線分すなわち中心軸線であり、リング状
とは円に限らず多角形なども含まれる。積層角度とは積
層する際の各濾過体の周方向の角度のことであり、連通
路は積層体を貫いて濾過体の連通開口がつながった流路
のことであり、扇形開口とは内外周が円弧状の扇状の開
口であり、仕切幅とは隣接する扇形開口を区画する間仕
切りの幅のことである。In the present invention, the hole axis is a segment connecting the centers of the cross sections of the through holes, that is, the center axis, and the ring shape includes not only a circle but also a polygon. The laminating angle is the angle in the circumferential direction of each filter when laminating, and the communication path is a flow path through which the communication opening of the filter is connected through the layered body. Is an arc-shaped fan-shaped opening, and the partition width is the width of a partition that partitions adjacent fan-shaped openings.

【００１９】また、懸濁物の粒子径よりも大きい貫通孔
とは、被処理液中でもっとも濾過したいと考える物質
（想定除去物質）で粒度分布をとったとき、もっとも数
の多い平均的粒子径（代表値）を基準にして大粒子径側
で、大粒子径側総個数（全体からみると５０％）の４０
％を含む粒子径（全体の総個数では９０％が含まれるこ
とになるから、以下、９０％粒子径と記載する）より大
きい径の孔のことである。例えば、濾過したい被処理液
が浴水で、浴水の濁り物質を濾過したいのであれば、想
定除去物質は体から出る油脂や皮脂細胞等（通常、大き
さは５〜６０μｍ）であり、これより性質が異なる細菌
類（通常、大きさは０．３〜３μｍ）や、大きな髪毛等
は除かれたものである。このように想定除去物質が濁り
物質の場合、濁り物質の９０％粒子径より大きい貫通孔
を開けることにより、濁り物質やこれより大きい髪毛等
の懸濁物が濾過されることになる。なお、本発明の積層
フィルターは、濾過体に開ける貫通孔の数や分布状態で
重なり開口（濾過孔）の分布具合が変化するし、被処理
液の性質によっても影響される。そこで、想定除去物質
の分布が異常にいびつに小径側に広がっている場合など
には、代表値付近の粒子径にまで貫通孔の径を下げるこ
とも場合によっては有効である。The through-holes larger than the particle size of the suspension are defined as the largest number of average particles when the particle size distribution of the substance to be filtered (assumed removal substance) in the liquid to be treated is taken. On the large particle diameter side based on the diameter (representative value), 40% of the total number of particles on the large particle diameter side (50% as a whole).
%, The pores having a diameter larger than the particle diameter containing 90% (90% is included in the total number). For example, if the liquid to be filtered is bath water and the turbid substance in the bath water is to be filtered, the assumed removal substance is oil or fat or sebum cells (usually 5 to 60 μm in size) coming out of the body. Bacteria with different properties (usually 0.3 to 3 μm in size) and large hairs are excluded. In the case where the assumed removal substance is a turbid substance, a through-hole larger than 90% particle diameter of the turbid substance is filtered to remove a turbid substance and a larger suspension such as hair. In the laminated filter of the present invention, the distribution of the overlapping openings (filtration holes) varies depending on the number and distribution of through-holes formed in the filter, and is also affected by the properties of the liquid to be treated. Therefore, when the distribution of the assumed removal substance is abnormally widened to the smaller diameter side, it is effective in some cases to reduce the diameter of the through-hole to a particle diameter near the representative value.

【００２０】この貫通孔の孔径をどのような径にすれば
よいか、具体的な例を挙げて説明すると、被処理液が浴
水の場合、９０％粒径は３０〜５０μｍである。上記し
たように、想定除去物質は浴水の濁り物質であり、細菌
を濾過するものではない。貫通孔を十分な数で均一に分
布させたとして、濾過体の貫通孔径は９０％粒径より１
オーダー大きい３００〜７００μｍ程度がよい。被処理
液が水道水の場合、９０％粒径は、５〜１０μｍで、こ
の時、濾過体の貫通孔径は５０〜１００μｍがよい。ま
た、被処理液が、水道水を貯水したもので次亜塩素酸が
抜けた水の場合、想定除去物質は細菌となり、９０％粒
径は３μｍとなる。この時、濾過体の貫通孔は２０〜５
０μｍを採用するのがよい。The diameter of the through-hole should be set as a specific example. If the liquid to be treated is bath water, the 90% particle size is 30 to 50 μm. As described above, the assumed removal substance is a turbid substance in the bath water and does not filter bacteria. Assuming that a sufficient number of the through-holes are evenly distributed, the diameter of the through-hole of the filter is 1% smaller than the 90% particle size.
The order of magnitude of about 300 to 700 μm is preferred. When the liquid to be treated is tap water, the 90% particle size is 5 to 10 μm, and in this case, the through-hole diameter of the filter is preferably 50 to 100 μm. In addition, when the liquid to be treated is water in which tap water is stored and hypochlorous acid has escaped, bacteria are assumed to be removed and the 90% particle size is 3 μm. At this time, the through hole of the filter is 20 to 5
It is preferable to adopt 0 μm.

【００２１】（実施の形態１）以下、本発明の実施の形
態１における積層フィルターについて、図面を用いて説
明する。(Embodiment 1) Hereinafter, a multilayer filter according to Embodiment 1 of the present invention will be described with reference to the drawings.

【００２２】図１は本発明の実施の形態１における積層
フィルターの構成概要図、図２は本発明の実施の形態１
における積層フィルターの構成断面図である。なお、図
２において、図中の矢印は被処理液の流れの方向を示
す。FIG. 1 is a schematic diagram of the configuration of a multilayer filter according to Embodiment 1 of the present invention, and FIG. 2 is Embodiment 1 of the present invention.
FIG. 2 is a cross-sectional view of the configuration of the multilayer filter in FIG. In FIG. 2, arrows in the figure indicate the direction of the flow of the liquid to be treated.

【００２３】図１及び図２において、本発明の積層フィ
ルター２は、平面形状を同心円のリング状とした濾過体
１を複数枚同軸上で積層したものである。これらの濾過
体１による積層体の上端及び下端はそれぞれシール状態
に配置した上面抑え板７と下面抑え板８とによって挟圧
保持されている。そして、上面抑え板７の中央には流入
口７−１を開け、下面抑え板８には環状に配列した複数
の流出口８−１を開けている。なお、本実施の形態にお
いて、上面抑え板７が第１非透過性支持体、下面抑え板
８が第２非透過性支持体、流入口７−１が第１開口、流
出口８−１が第２開口を構成する。1 and 2, a laminated filter 2 of the present invention is formed by coaxially laminating a plurality of filter bodies 1 each having a planar shape of a concentric ring shape. The upper end and the lower end of the laminated body formed by these filter bodies 1 are held by an upper surface pressing plate 7 and a lower surface pressing plate 8 which are arranged in a sealed state. An inflow port 7-1 is opened in the center of the upper holding plate 7, and a plurality of annularly arranged outlets 8-1 are opened in the lower holding plate 8. In this embodiment, the upper surface holding plate 7 is the first non-permeable support, the lower surface holding plate 8 is the second non-permeable support, the inlet 7-1 is the first opening, and the outlet 8-1 is the first opening. A second opening is formed.

【００２４】濾過体１は厚み方向に懸濁物の粒子径より
も大きい多数の貫通孔１ａを開けたものである。そし
て、濾過体１には、円形開口の中央孔１ｂと、この中央
孔１ｂの周りの内周側仕切り１ｃと、この内周側仕切り
１ｃと外壁との間に放射状に形成した複数の仕切り１ｄ
とを備え、扇状の開口断面の扇形開口３（連通開口）が
形成されている。扇形開口３と外周端部４及び内周端部
５にはそれぞれ多数の切欠きが形成されている。また、
すべての濾過体１の平面形状は同じであり、外周端部４
及び内周端部５は同心円として形成されている。The filter 1 has a large number of through-holes 1a which are larger than the particle diameter of the suspension in the thickness direction. The filter 1 has a central hole 1b having a circular opening, an inner peripheral partition 1c around the central hole 1b, and a plurality of partitions 1d radially formed between the inner peripheral partition 1c and the outer wall.
And a fan-shaped opening 3 (communication opening) having a fan-shaped opening cross section is formed. Numerous notches are formed in the fan-shaped opening 3, the outer peripheral end 4 and the inner peripheral end 5, respectively. Also,
The planar shape of all the filter bodies 1 is the same, and the outer peripheral end 4
The inner peripheral end 5 is formed as a concentric circle.

【００２５】濾過体１をシート状の素材に多数の微小な
貫通孔１ａを打ち抜いて開けるように形成すると、外周
端部４と内周端部５及び扇形開口３の縁には貫通孔１ａ
の一部がそのまま半円状の横断面の切欠きとして残るの
で、このような切欠きを形成するのは容易である。これ
らの切欠きがそれぞれ外側積層面及び内側積層面に露出
して外部と連通可能になる。また、濾過体１を積層して
上面抑え板７及び下面抑え板８によって狭持固定したと
きには、図２に示すように、全ての中央孔１ｂが連通す
るとともに扇形開口３も連通して連通路６を形成する。
そして、中央孔１ｂは流入口７−１に連通し、流出口８
−１を扇形開口３と対応させて同じ個数だけ設けること
で、全ての扇形開口３が積層により形成された連通路６
もそれぞれに対応した流出口８−１に連通する。When the filter 1 is formed by punching a large number of small through holes 1a in a sheet-like material, the outer peripheral end 4 and the inner peripheral end 5 and the edge of the fan-shaped opening 3 have through holes 1a.
Is left as a notch having a semicircular cross section as it is, and it is easy to form such a notch. These notches are exposed on the outer laminated surface and the inner laminated surface, respectively, and can communicate with the outside. Further, when the filter bodies 1 are stacked and held and fixed by the upper surface holding plate 7 and the lower surface holding plate 8, as shown in FIG. 2, all the central holes 1b communicate with each other, and the fan-shaped openings 3 also communicate with each other. 6 is formed.
The central hole 1b communicates with the inlet 7-1 and the outlet 8
By providing the same number in correspondence with the fan-shaped openings 3, all the fan-shaped openings 3 are formed in a communication path 6 formed by lamination.
Also communicate with the corresponding outlets 8-1.

【００２６】ここで、図１に示すように、仕切り１ｄの
仕切幅をＬ１とし、これらの仕切り１ｄによって区画さ
れた扇形開口３の円周方向の長さＬ２とする。この場
合、実施の形態では全ての仕切り１ｄは一様な仕切幅Ｌ
１を持つものとし、長さＬ２は扇形開口３の半径方向の
中間位置における円周長さであって、このＬ２の値も一
様である。そして、本発明では、Ｌ２＞Ｌ１の関係を持
たせる。Here, as shown in FIG. 1, the partition width of the partition 1d is L1, and the circumferential length L2 of the fan-shaped opening 3 defined by these partitions 1d is L2. In this case, in the embodiment, all the partitions 1d have a uniform partition width L.
The length L2 is a circumferential length at a radially intermediate position of the sector opening 3, and the value of L2 is also uniform. In the present invention, a relationship of L2> L1 is provided.

【００２７】このような仕切り１ｄの仕切幅Ｌ１と扇形
開口３の円周方向の長さＬ２との関係によって、上下に
配置する濾過体１どうしの間の位置合わせを厳しくしな
くても、積層した濾過体１の仕切り１ｄが交錯して連通
路６を閉塞することはなく、流出口８−１に連通する連
通路６が確実に形成される。なお、積層フィルター２の
圧力損失を極力低減させるために、仕切り１ｄの仕切幅
Ｌ１は可能な限り短い方が好ましい。Due to the relationship between the partition width L1 of the partition 1d and the circumferential length L2 of the fan-shaped opening 3, it is not necessary to strictly adjust the position between the filter bodies 1 arranged above and below. The partition 1d of the filtered body 1 does not cross and block the communication path 6, and the communication path 6 communicating with the outlet 8-1 is reliably formed. In order to reduce the pressure loss of the multilayer filter 2 as much as possible, the partition width L1 of the partition 1d is preferably as short as possible.

【００２８】また、濾過体１の外周端部４と扇形開口３
の外周側仕切りの仕切幅をＬ３とし、内周側仕切り１ｃ
の仕切幅をＬ４とするとき、濾過時のチャネリングを防
止して有効な濾過面積を確保するため、Ｌ３とＬ４とを
等しくする。ここで、外周端部４と扇形開口３の外周側
仕切りの仕切幅Ｌ３及び内周側仕切り仕切幅Ｌ４が一様
でない場合もあるので、これらのＬ３とＬ４はそれぞれ
の仕切幅の最小のもので代表させるものとする。The outer peripheral end 4 of the filter 1 and the fan-shaped opening 3
The partition width of the outer peripheral side partition is L3, and the inner peripheral side partition 1c
When the partition width is L4, L3 and L4 are made equal to prevent channeling at the time of filtration and secure an effective filtration area. Here, since the partition width L3 and the partition width L4 of the inner peripheral partition of the outer peripheral end portion 4 and the outer peripheral partition of the sector opening 3 may not be uniform, these L3 and L4 are the minimum of the respective partition widths. Shall be represented by

【００２９】以上の構成において、懸濁物を含む被処理
液は、濾過体１を多数積層して構成された積層フィルタ
ー２の外周積層面及び流入口７−１から導入される。そ
して、濾過体１はその厚さ方向に懸濁物よりも大きな貫
通孔１ａを多数開け、外周端部４と内周端部５及び扇形
開口３には多数の切欠きが設けられているので、この切
欠きは外部に連通し、濾過体１どうしの重なりによりそ
れぞれの貫通孔１ａも重なりあって微細な濾過孔を多数
形成する。したがって、外周積層面から導入される被処
理液に含まれる懸濁物は連通路６に入る前に貫通孔１ａ
による濾過孔によって捕捉されるとともに貫通孔１ａ内
にできる渦や滞留域に引き込まれて濾過され、流出口８
−１から排出される。また、流入口７−１から導入され
た被処理液は中央孔１ｂから内周側仕切り１ｃを抜ける
ときに濾過され、外周積層面から流入した被処理液は外
周側仕切りを通るときに濾過されて連通路に入り込み、
流出口８−１から排出される。In the above configuration, the liquid to be treated including the suspension is introduced from the outer peripheral lamination surface and the inlet 7-1 of the multilayer filter 2 configured by laminating a large number of the filter bodies 1. The filter body 1 has a large number of through-holes 1a larger than the suspension in the thickness direction, and the outer peripheral end 4, the inner peripheral end 5, and the fan-shaped opening 3 are provided with a number of notches. The notches communicate with the outside, and the through holes 1a also overlap each other due to the overlap of the filter bodies 1 to form a large number of fine filtration holes. Therefore, the suspended matter contained in the liquid to be treated introduced from the outer peripheral lamination surface passes through the through-hole 1 a before entering the communication passage 6.
And is drawn into the vortex or stagnation area formed in the through-hole 1a and filtered, and the outlet 8
Emitted from -1. The liquid to be treated introduced from the inlet 7-1 is filtered when passing through the inner peripheral side partition 1c from the central hole 1b, and the liquid to be treated flowing from the outer peripheral laminated surface is filtered when passing through the outer peripheral side partition. Into the communication passage,
It is discharged from the outlet 8-1.

【００３０】なお、請求項２に記載の構成のように、図
示の例の被処理液を外周積層面及び流入口７−１から導
入するのに代えて、流出口８−１から被処理液を導入し
て連通路６から外周積層面及び内周側仕切り１ｃを抜け
て中央孔１ｂを経由して流入口７−１から排出する流れ
としてもよい。In this case, instead of introducing the liquid to be treated in the illustrated example from the outer peripheral lamination surface and the inlet 7-1, the liquid to be treated is supplied from the outlet 8-1. To flow from the communication path 6 through the outer peripheral lamination surface and the inner peripheral side partition 1c, through the central hole 1b, and discharged from the inflow port 7-1.

【００３１】（実施の形態２）図３は本発明の実施の形
態２における積層フィルターの構成概要図である。な
お、実施の形態１と同じ構成部材については同一の符号
を付して詳細な説明を省略する。(Embodiment 2) FIG. 3 is a schematic structural diagram of a laminated filter according to Embodiment 2 of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

【００３２】複数枚を積層することによって積層フィル
ター２を構成する濾過体１は、外郭を正六角形とすると
ともに内周側仕切り１ｃをこの外郭と相似形状として同
心配置したものである。そして、全ての濾過体１を同じ
姿勢で積層することによって、六角柱状の積層フィルタ
ー２が形成される。なお、積層フィルター２の上端及び
下端には、実施の形態１で示した上面抑え板及び下面抑
え板７，８をそれぞれ配置し、これらの板の流入口７−
１及び流出口８−１をそれぞれ中央孔１ｂ及び扇形開口
３によって形成される連通路６に連通させたものとす
る。The filter body 1 constituting the laminated filter 2 by laminating a plurality of sheets has an outer shell having a regular hexagonal shape, and an inner peripheral side partition 1c concentrically arranged in a shape similar to the outer shell. Then, by laminating all the filter bodies 1 in the same posture, a hexagonal prism-shaped laminated filter 2 is formed. At the upper end and the lower end of the laminated filter 2, the upper surface suppressing plate and the lower surface suppressing plate 7, 8 shown in the first embodiment are respectively arranged, and the inlets 7- of these plates are provided.
1 and the outlet 8-1 are respectively connected to a communication path 6 formed by the central hole 1b and the fan-shaped opening 3.

【００３３】図３の積層フィルターでも、被処理液の導
入から濾過及び排出は実施の形態１と同様であり、積層
した濾過体１の中に被処理液を通すことで清澄化するこ
とができる。Also in the laminated filter of FIG. 3, the introduction, filtration, and discharge of the liquid to be treated are the same as in the first embodiment, and the liquid to be treated can be clarified by passing the liquid to be treated through the laminated filter 1. .

【００３４】なお、濾過体１の平面形状は正六角形に限
らず正多角形または矩形のものとしてもよい。The planar shape of the filter 1 is not limited to a regular hexagon, but may be a regular polygon or a rectangle.

【００３５】以上説明したように、実施の形態１，２に
おいて、隣接する濾過体１が密着して積層されるため、
密着した濾過体１の表面間では濾過通路はほとんど形成
されない。しかし、貫通孔１ａどうしが重なるので、本
来は懸濁物の粒子径よりも大きな孔径の貫通孔１ａであ
るにもかかわらず、この重なりによって懸濁物の粒子径
より小さな開口（濾過孔）を形成する。そして、このよ
うな貫通孔１ａどうしの重なりがさらに隣接する濾過体
１間で繰り返されて濾過通路を形成する。したがって、
この濾過通路により、被処理液は各濾過体１の積層体で
濾過された後に複数の扇形開口３に形成された切欠きか
ら流出させることができる。As described above, in the first and second embodiments, since the adjacent filter bodies 1 are closely stacked,
A filtration passage is hardly formed between the surfaces of the filter body 1 that are in close contact with each other. However, since the through-holes 1a overlap each other, an opening (filtration hole) smaller than the particle diameter of the suspension is formed due to the overlap, despite the fact that the through-holes 1a are originally larger in diameter than the particle diameter of the suspension. Form. Then, the overlapping of the through holes 1a is repeated between the adjacent filter bodies 1 to form a filtration passage. Therefore,
This filtration passage allows the liquid to be treated to flow out of the notches formed in the plurality of fan-shaped openings 3 after being filtered by the stacked body of the respective filter bodies 1.

【００３６】[0036]

【発明の効果】請求項１及び２に記載の発明によれば、
濾過体の内外周面を流入面とし、扇形開口による連通路
を流出面とすることで、濾過面積が増大され圧力損失を
低減することができ、小型でありながら目詰まりによる
寿命を大幅に向上することができる。また、被処理液の
供給手段に循環ポンプを用いた場合、循環ポンプの小型
化が可能となり、消費電力及びコストを低減することが
できる。According to the first and second aspects of the present invention,
By using the inner and outer peripheral surfaces of the filter body as the inflow surface and the communication passage formed by the fan-shaped opening as the outflow surface, the filtration area can be increased and the pressure loss can be reduced. can do. Further, when a circulation pump is used as the supply means of the liquid to be treated, the size of the circulation pump can be reduced, and power consumption and cost can be reduced.

【００３７】請求項３に記載の発明によれば、濾過体を
ランダムに積層しても確実に扇形開口による連通路を形
成することができる。According to the third aspect of the present invention, even if the filter bodies are randomly stacked, a communication path with a fan-shaped opening can be reliably formed.

【００３８】請求項４に記載の発明によれば、扇形開口
の位置関係が規則性を持たずに濾過体を積層できるの
で、製造時の行程数の削減及びコストの低減が可能とな
る。According to the fourth aspect of the present invention, since the filter bodies can be stacked without a regular positional relationship between the fan-shaped openings, it is possible to reduce the number of steps in manufacturing and the cost.

【００３９】請求項５に記載の発明によれば、扇形開口
による最大の通路面積を確保することができ圧力損失を
低減することが可能となる。According to the fifth aspect of the present invention, it is possible to secure the maximum passage area by the fan-shaped opening and reduce the pressure loss.

【００４０】請求項６に記載の発明によれば、被処理液
がチャネリングを起こさずに流入面を有効に使用するこ
とができ、目詰まりによる寿命を大幅に向上することが
できる。According to the sixth aspect of the present invention, the inflow surface can be used effectively without causing the liquid to be treated to be channeled, and the life due to clogging can be greatly improved.

【００４１】請求項７に記載の発明によれば、扇形開口
に規則性を持たせ濾過体を積層することが容易となり、
製造時の工程数を削減することができる。According to the seventh aspect of the present invention, it is easy to make the fan-shaped openings regular and to stack the filter bodies,
The number of steps during manufacturing can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施の形態１における積層フィルター
の構成概要図FIG. 1 is a schematic configuration diagram of a multilayer filter according to Embodiment 1 of the present invention.

【図２】本発明の実施の形態１における積層フィルター
の構成断面図FIG. 2 is a configuration sectional view of a multilayer filter according to Embodiment 1 of the present invention.

【図３】本発明の実施の形態２における積層フィルター
の構成概要図FIG. 3 is a schematic structural diagram of a multilayer filter according to a second embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１ 濾過体 １ａ 貫通孔 １ｂ 中央孔 １ｃ 内周側仕切り １ｄ 仕切り ２ 積層フィルター ３ 扇形開口 ４ 外周端部 ５ 内周端部 ６ 連通路 ７ 上面抑え板（第１非透過性支持板） ７−１ 流入口（第１開口） ８ 下面抑え板（第２非透過性支持板） ８−１ 流出口（第２開口） DESCRIPTION OF SYMBOLS 1 Filtration body 1a Through-hole 1b Central hole 1c Inner side partition 1d Partition 2 Laminated filter 3 Fan-shaped opening 4 Outer end 5 Inner end 6 Communication path 7 Upper surface suppressing plate (1st non-permeable support plate) 7-1 Inlet (first opening) 8 Lower surface holding plate (second non-permeable support plate) 8-1 Outlet (second opening)

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】懸濁物の粒子径よりも大きな孔径の貫通孔
が厚み方向に孔軸を向けて複数形成され、内周端部と外
周端部にそれぞれ切欠きが形成されたリング状の濾過体
が複数枚積層されるとともに、第１開口が形成された第
１非透過性支持板と第２開口が形成された第２非透過性
支持板とで積層体の両側が挟持された積層フィルターで
あって、前記濾過体の内周端部と外周端部の間には、積
層したとき前記第２開口と連通する連通路を前記積層体
に形成するための連通開口が周囲に切欠きを備えてそれ
ぞれ形成され、被処理液が内周積層面と外周積層面から
流入して、前記第２開口から流出する構成としたことを
特徴とする積層フィルター。1. A ring-shaped through-hole having a plurality of through-holes having a diameter larger than the particle diameter of a suspension is formed in the thickness direction with a hole axis oriented, and a notch is formed at each of an inner peripheral end and an outer peripheral end. A laminate in which a plurality of filter bodies are laminated, and both sides of the laminate are sandwiched between a first non-permeable support plate having a first opening and a second non-permeable support plate having a second opening. A filter, wherein a communication opening for forming a communication passage communicating with the second opening when the filter is laminated is formed between the inner peripheral end and the outer peripheral end of the filter body. Wherein the liquid to be treated flows in from the inner peripheral laminated surface and the outer peripheral laminated surface and flows out from the second opening. 【請求項２】懸濁物の粒子径よりも大きな孔径の貫通孔
が厚み方向に孔軸を向けて複数形成され、内周端部と外
周端部にそれぞれ切欠きが形成されたリング状の濾過体
が複数枚積層されるとともに、第１開口が形成された第
１非透過性支持板と第２開口が形成された第２非透過性
支持板とで積層体の両側が挟持された積層フィルターで
あって、前記濾過体の内周端部と外周端部の間には、積
層したとき前記第２開口と連通する連通路を前記積層体
に形成するための連通開口が周囲に切欠きを備えてそれ
ぞれ形成され、被処理液が前記第２開口から流入して、
前記内周積層面と前記外周積層面から流出する構成とし
たことを特徴とする積層フィルター。2. A ring-shaped through hole having a plurality of through-holes having a diameter larger than the particle diameter of the suspension is formed with the hole axis directed in the thickness direction, and a notch is formed at each of an inner peripheral end and an outer peripheral end. A laminate in which a plurality of filter bodies are laminated, and both sides of the laminate are sandwiched between a first non-permeable support plate having a first opening and a second non-permeable support plate having a second opening. A filter, wherein a communication opening for forming a communication passage communicating with the second opening when the filter is laminated is formed between the inner peripheral end and the outer peripheral end of the filter body. And the liquid to be treated flows in from the second opening,
A laminated filter characterized by being configured to flow out from the inner peripheral laminated surface and the outer peripheral laminated surface. 【請求項３】前記濾過体の前記連通開口がリング状に配
列された複数の扇形開口であって、隣接する扇形開口間
の仕切幅が前記扇形開口の半径方向中間位置における周
方向長さより短いことを特徴とする請求項１または２に
記載の積層フィルター。3. A communication device according to claim 2, wherein said communicating openings of said filter are a plurality of fan-shaped openings arranged in a ring shape, and a partition width between adjacent fan-shaped openings is shorter than a circumferential length at a radially intermediate position of said fan-shaped openings. The laminated filter according to claim 1 or 2, wherein: 【請求項４】前記濾過体が周方向に任意の積層角度で積
層されていることを特徴とする請求項３記載の積層フィ
ルター。4. The laminated filter according to claim 3, wherein said filter bodies are laminated at an arbitrary laminating angle in a circumferential direction. 【請求項５】前記濾過体が周方向に一致した所定の積層
角度で前記扇形開口を整合して積層され、前記連通路が
厚み方向に伸びた孔を形成していることを特徴とする請
求項３記載の積層フィルター。5. The filter according to claim 1, wherein the filter bodies are stacked with the fan-shaped openings aligned at a predetermined stacking angle coinciding with the circumferential direction, and the communication path forms a hole extending in the thickness direction. Item 7. The laminated filter according to Item 3. 【請求項６】前記外周端部と前記扇形開口の半径方向幅
と、前記内周端部と前記扇形開口の半径方向幅とが同一
幅であることを特徴とする請求項３から５のいずれかに
記載の積層フィルター。6. The radial width of the outer peripheral end and the fan-shaped opening, and the radial width of the inner peripheral end and the fan-shaped opening are the same width. The laminated filter according to any one of the above. 【請求項７】前記濾過体の前記外周端部と前記内周端部
の形状が中心を一致させた正多角形であって、前記連通
開口が各辺に沿って配設されていることを特徴とする請
求項１または２記載の積層フィルター。7. The filter body according to claim 1, wherein said outer peripheral end and said inner peripheral end are regular polygons having the same center, and said communication openings are provided along each side. The laminated filter according to claim 1 or 2, wherein: