JP2001258422A - Filtering device for aquarium - Google Patents
Filtering device for aquariumInfo
- Publication number
- JP2001258422A JP2001258422A JP2000075936A JP2000075936A JP2001258422A JP 2001258422 A JP2001258422 A JP 2001258422A JP 2000075936 A JP2000075936 A JP 2000075936A JP 2000075936 A JP2000075936 A JP 2000075936A JP 2001258422 A JP2001258422 A JP 2001258422A
- Authority
- JP
- Japan
- Prior art keywords
- water
- discharge pipe
- air
- aquarium
- filtering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Farming Of Fish And Shellfish (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えば金魚や熱
帯魚等の水棲生物の鑑賞飼育用水槽の水底部にセット
し、エアーポンプより供給される空気を気泡として放出
する際のエアーリフト効果を利用して、水を吸引濾過す
る水槽濾過装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention utilizes an airlift effect when air supplied from an air pump is set as a bubble in an aquarium for viewing and breeding aquatic organisms such as goldfish and tropical fish. And a water tank filtration device for suction-filtering water.
【０００２】[0002]
【従来技術とその課題】一般に、この種の水槽濾過装置
は、濾材を装填した濾過ケースに直立状の排出パイプを
設け、エアーポンプより供給される空気を気泡として内
部に放出し、この気泡が排出パイプを通って上方へ排出
される際のエアーリフト効果により、当該排出パイプ内
に上昇水流を発生させ、この上昇水流の発生に伴う濾過
ケース内の負圧によって水槽内の汚れた水を吸引し、濾
材を通して浄化して該排出パイプから吐出するようにな
っている。また、上記気泡の発生手段としては、硬質合
成樹脂発泡体からなる中空軸状で、内部に供給される空
気を多孔組織中の通過によって細かい気泡として外部へ
放出するエアーストーンが多用されている。2. Description of the Related Art Generally, in this type of aquarium filter, an upright discharge pipe is provided in a filter case loaded with a filter medium, and air supplied from an air pump is discharged into the inside as air bubbles. Due to the air lift effect when discharged upward through the discharge pipe, a rising water flow is generated in the discharge pipe, and the negative pressure in the filtration case accompanying the generation of the rising water flow sucks dirty water in the water tank. Then, the water is purified through a filter medium and discharged from the discharge pipe. As a means for generating the air bubbles, an air stone having a hollow shaft shape made of a rigid synthetic resin foam and releasing the air supplied to the inside to the outside as fine air bubbles by passing through a porous structure is often used.
【０００３】そして、従来の水槽濾過装置においては、
前記のエアーリフト効果を高めて吸水力を増大させるた
めに、排水パイプを上方へ長く突出させ、この排水パイ
プの直下のケース内底部に前記エアーストーンを配置す
るのが普通である（例えば特公平６−７５４５７号公
報、特開平１０−７５６８５号公報等）。[0003] In a conventional aquarium filtration device,
In order to increase the water absorption by increasing the air lift effect, it is common to protrude a drain pipe long upward and arrange the air stone at the bottom inside the case immediately below the drain pipe (for example, Japanese Patent Publication No. 6-75457, JP-A-10-75685, etc.).
【０００４】しかしながら、上記のように排水パイプを
長くした濾過装置では、水槽内に設置した状態で見栄え
が悪い上、排水パイプを設ける部材（一般に上部ケー
ス）の材料及び成形コストが高く付くと共に、嵩張るた
めに製品の輸送及び保管時にもスペースをとってコスト
高になるという問題があった。[0004] However, the filtration device having a long drainage pipe as described above has a poor appearance when installed in a water tank, and requires a high material and molding cost for a member (generally an upper case) for providing the drainage pipe. Due to the bulkiness, there is a problem that a space is taken up at the time of transportation and storage of the product, resulting in an increase in cost.
【０００５】この発明は、上述の事情に鑑みて、気泡を
放出する際のエアーリフト効果によって水を吸引濾過す
る水槽濾過装置として、排水パイプを短くしても充分な
エアーリフト効果を確保でき、もって大きな吸水力によ
る優れた濾過能力を備え、水槽内に外観体裁よく設置で
き、且つ製作、輸送、保管等のコストを低減できるもの
を提供することを目的としている。The present invention has been made in view of the above circumstances, and as a water tank filtration device for suction-filtering water by an air lift effect when air bubbles are released, a sufficient air lift effect can be secured even if a drain pipe is shortened. It is an object of the present invention to provide a filter which has excellent filtration ability due to a large water absorption capacity, can be installed in a water tank in a good appearance, and can reduce manufacturing, transportation, storage and other costs.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、請求項１の発明に係る水槽濾過装置は、濾材を装填
した濾過ケースに、直立状の排出パイプと吸水口及び気
泡発生手段が設けられ、気泡発生手段にて発生させた気
泡の上昇に伴って排出パイプ内に生じる上昇水流によ
り、前記吸水口から水を吸引して前記濾材に通して排出
パイプから上方へ吐出する水槽濾過装置において、前記
気泡発生手段が、内側に導入される空気を細かい気泡と
して外側へ放出する、多孔質で上端が閉塞した中空軸状
のエアーストーンからなり、前記排水パイプの上端部が
縮径され、この排出パイプ内に同心状に垂直配置した前
記エアーストーンの上端が当該排出パイプの上端近傍に
位置していることを特徴としている。According to a first aspect of the present invention, there is provided a water tank filtration apparatus comprising a filter case loaded with a filter medium, wherein an upright discharge pipe, a water inlet, and a bubble generating means are provided. A water tank filtration device provided, which draws water from the water suction port, passes through the filter medium, and discharges upward from the discharge pipe by a rising water flow generated in the discharge pipe with the rise of bubbles generated by the bubble generation means. In the above, the bubble generating means discharges air introduced into the inside as fine bubbles to the outside, is formed of a hollow, hollow shaft-shaped airstone having a closed upper end, and the upper end of the drain pipe is reduced in diameter, The upper end of the air stone vertically arranged concentrically inside the discharge pipe is located near the upper end of the discharge pipe.
【０００７】このような水槽濾過装置では、エアースト
ーンから気泡が放出されると、排出パイプ内にエアーリ
フト効果による上昇水流を生じるが、エアーストーンの
上端が排出パイプの上端近傍に位置して、且つ該排出パ
イプの上端部が縮径し、該排出パイプの出口付近で上昇
水流の流路が狭く絞られた形になるから、ベンチュリー
作用によって該上昇水流が急激に流速を速めて排出パイ
プより外部へ吐出され、この水流に乗って気泡の上昇速
度が速まり、濾過ケース内への被処理水の吸引力が増大
することに加え、流速の速い上昇水流の連続した吐出に
より、排出パイプ出口の外側における吐出水流の周り
に、吐出水流側で流れが上向きになる継続的な回転水流
を生じ、この回転水流による誘引作用で排出パイプ出口
に吸引力が働くことになる。従って、排出パイプが短く
ても大きなエアーリフト効果が得られ、高い吸引濾過効
率を達成できる。In such a water tank filtration device, when air bubbles are released from the air stone, an ascending water flow is generated in the discharge pipe due to an air lift effect, but the upper end of the air stone is located near the upper end of the discharge pipe. And since the upper end of the discharge pipe is reduced in diameter and the flow path of the rising water flow is narrowed and narrowed in the vicinity of the outlet of the discharge pipe, the rising water flow rapidly increases the flow velocity by the venturi action so that It is discharged to the outside, the rising speed of the bubbles is increased by this water flow, and the suction force of the water to be treated is increased into the filtration case. Around the discharge water flow on the outside of the water flow, a continuous rotating water flow in which the flow is upward on the discharge water flow side, and suction force acts on the outlet of the discharge pipe by the attraction effect of this rotating water flow It made. Therefore, even if the discharge pipe is short, a large air lift effect can be obtained, and high suction filtration efficiency can be achieved.
【０００８】しかして、このような水槽濾過装置におい
て、請求項２の発明のように、エアーストーンの上端が
排出パイプの上端よりも１〜３ｍｍ低い位置にある構成
とすれば、特に前記のベンチュリー作用及び回転水流に
よる吸引力の増大が顕著になる。また、請求項３の発明
のように、排水パイプを、下部から上部へ緩く縮径し、
更に上端部で急激に縮径した形状を有するものとすれ
ば、ベンチュリー作用による流速の増大がより顕著にな
り、吸引力がより大きくなる。In such a water tank filtration device, if the upper end of the air stone is located at a position lower than the upper end of the discharge pipe by 1 to 3 mm as in the second aspect of the present invention, the venturi is particularly improved. The increase of the suction force due to the action and the rotating water flow becomes remarkable. Further, the drainage pipe is gently reduced in diameter from the lower part to the upper part as in the invention of claim 3,
Further, if the upper end portion has a shape whose diameter is sharply reduced, the increase in the flow velocity due to the venturi action becomes more remarkable, and the suction force becomes larger.
【０００９】[0009]
【発明の実施の形態】以下、この発明の一実施例に係る
水槽濾過装置について、図面を参照して具体的に説明す
る。図１〜図５において、（１）は上部カバー、（２）
は底トレイ、（３）は仕切り部材、（４Ａ）は不織布等
の多孔性マットからなる上部濾材層、（４Ｂ）は砂利等
の粒状物充填層からなる下部濾材層、（５）はエアース
トーン、（６）はスノコ板、（７）は送気チューブ接続
用のエルボ部材である。なお、上部カバー（１）、底ト
レイ（２）、仕切り部材（３）及びエルボ部材（７）
は、いずれも硬質透明合成樹脂の一体成形物からなる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a water tank filtration device according to an embodiment of the present invention will be specifically described with reference to the drawings. 1 to 5, (1) is an upper cover, (2)
Is a bottom tray, (3) is a partition member, (4A) is an upper filter medium layer made of a porous mat such as a nonwoven fabric, (4B) is a lower filter medium layer made of a layer filled with particulate matter such as gravel, and (5) is an air stone. , (6) is a snowboard, and (7) is an elbow member for connecting an air supply tube. The upper cover (1), the bottom tray (2), the partition member (3) and the elbow member (7)
Are all made of an integral molded product of a hard transparent synthetic resin.
【００１０】上部カバー（１）は、上壁部（１ａ）と、
その周縁より垂下する周壁部（１ｂ）とで、平面視略正
方形で下方に開いた箱形をなしている。この上壁部（１
ａ）は、中央に円形の開口部（１１）を有すると共に、
裏面側に該開口部（１１）を中心として放射状に配置し
た複数条の隔壁（１２）…が突設されている。また周壁
部（１ｂ）は、四周の各側面に左右一対の上下方向に沿
う畝状の外向き膨出部（１３）（１３）を有し、一方の
対向する両側面の各中央位置には、下縁から上方へ向か
う一対の細い切欠部（１４）（１４）の間で構成した係
止片（１５）を有し、この係止片（１５）の外面側に略
半円状に膨出した掛止突起（１５ａ）が設けられ、他方
の対向する両側面の各中央位置には、下縁側に半円形切
欠部（１６）を有すると共に、この半円形切欠部（１
６）のやや上位から上壁部（１ａ）の周縁部に達する複
数本（図では４本）のスリット状の上部吸引口（１７）
…を備えている。The upper cover (1) includes an upper wall (1a),
The peripheral wall portion (1b) hanging down from the peripheral edge forms a box shape which is substantially square in plan view and opened downward. This upper wall (1
a) has a circular opening (11) in the center,
A plurality of partitions (12)... Are radially arranged around the opening (11) on the back side. Further, the peripheral wall portion (1b) has a pair of left and right ridge-shaped outwardly bulging portions (13) and (13) along the vertical direction on each side surface of the four circumferences. And a locking piece (15) formed between a pair of thin notches (14) (14) extending upward from the lower edge, and a substantially semicircular expansion on the outer surface side of the locking piece (15). A protruding latching projection (15a) is provided, and a semicircular notch (16) is provided on the lower edge side at each center position of the other opposing side surfaces, and this semicircular notch (1) is provided.
6) A plurality (four in the figure) of slit-shaped upper suction ports (17) reaching the peripheral portion of the upper wall portion (1a) from a slightly higher position.
...
【００１１】底トレイ（２）は、通水孔のない底壁部
（２ａ）と、その周縁より立ち上がる周壁部（２ｂ）と
で、平面視略正方形で上方に開いた箱形をなし、底壁部
（２ａ）の周縁が周壁部（２ｂ）の下端より外側へ若干
突出してカバー受け部（２ｃ）を構成している。そし
て、底壁部（２ａ）の内面側には、中央位置で直立した
筒軸状の空気吐出口（２１）と、この空気吐出管（２
１）の下端部から周壁部（２ｂ）に至る水平管状の通気
路（２２）と、この通気路（２２）位置を除いて上部カ
バー（１）の隔壁（１７）…に対応した放射状に配置す
る複数本（図では７本）の条片（２３）…とが一体形勢
されている。また周壁部（２ｂ）の四周の内、一方の対
向する両側面の各中央部が凹面部（２４）となり、この
凹面部（２４）の上縁に上下に透通するスリット孔（２
５ａ）を備えた係止枠（２５）が設けてある。The bottom tray (2) comprises a bottom wall (2a) having no water passage hole and a peripheral wall (2b) rising from the periphery thereof, and has a box shape which is substantially square in plan view and opened upward. The peripheral edge of the wall portion (2a) slightly protrudes outward from the lower end of the peripheral wall portion (2b) to form a cover receiving portion (2c). On the inner surface side of the bottom wall portion (2a), a cylindrical shaft-shaped air discharge port (21) standing upright at the center position, and the air discharge pipe (2).
A horizontal tubular ventilation path (22) extending from the lower end of 1) to the peripheral wall section (2b), and radial arrangement corresponding to the partition walls (17) of the upper cover (1) except for the position of the ventilation path (22). (Seven in the figure) are integrally formed. Also, of the four circumferences of the peripheral wall portion (2b), the central portion of one of the two opposing side surfaces becomes a concave portion (24), and a slit hole (2) vertically penetrating the upper edge of the concave portion (24).
A locking frame (25) with 5a) is provided.
【００１２】仕切り部材（３）は、多数の長孔状の通水
孔（３１）…を有する水平仕切り板（３ａ）と、その周
縁より立ち上がる周壁部（３ｂ）とで、平面視略正方形
の篩枡形をなし、水平仕切り板（３ａ）の中央に直立状
の排出パイプ（３０）が一体形成されると共に、該排出
パイプ（３０）の根元から周壁部（３ｂ）に至る半径方
向に沿って、該水平仕切り板（３ａ）の底面側が断面半
円形に凹んだ通気路外嵌部（３５）を有している。この
周壁部（３ｂ）の四周の内、一方の対向する両側面の各
中央部が底トレイ（２）の凹面部（２４）に対応した凹
面部（３２）をなし、他方の対向する両側面の上縁には
内向きに突出した左右一対の押さえ片（３３）（３３）
を有し、周壁部（３ｂ）の四周の各内面側中央には受け
片（３４）が突設されている。The partition member (3) is composed of a horizontal partition plate (3a) having a large number of elongated water passage holes (31) and a peripheral wall portion (3b) rising from the peripheral edge of the horizontal partition plate (3a). An upright discharge pipe (30) is formed integrally at the center of the horizontal partition plate (3a), and is formed along the radial direction from the root of the discharge pipe (30) to the peripheral wall (3b). The bottom surface side of the horizontal partition plate (3a) has a ventilation path outer fitting portion (35) recessed in a semicircular cross section. Of the four circumferences of the peripheral wall portion (3b), the central portion of one of the opposing side surfaces forms a concave portion (32) corresponding to the concave portion (24) of the bottom tray (2), and the other opposing side surface. A pair of left and right holding pieces (33) (33) protruding inward on the upper edge of
, And a receiving piece (34) is protrudingly provided at the center of each inner surface of the four circumferences of the peripheral wall portion (3b).
【００１３】しかして、排出パイプ（３０）は、下部か
ら上部へ漸次縮径して、更に上端部（３０ａ）で急激に
縮径した形状を有している。また、エアーストーン
（５）は、硬質合成樹脂発泡体等よりなる多孔質中空軸
状で、上端が閉塞しており、底トレイ（２）の空気吐出
管（２１）に下部を挿嵌させ、この底トレイ（２）に仕
切り部材（３）を内嵌させたとき、図２及び図３に示す
ように、排出パイプ（３０）内に同心状に垂直配置し
て、且つ上端（５ａ）が排出パイプ（３０）の上端より
僅かに低い位置になるように寸法設定されている。The discharge pipe (30) has such a shape that the diameter thereof is gradually reduced from the lower part to the upper part, and is further reduced rapidly at the upper end part (30a). The air stone (5) is a porous hollow shaft made of a rigid synthetic resin foam or the like, the upper end of which is closed, and the lower part is fitted into the air discharge pipe (21) of the bottom tray (2). When the partition member (3) is fitted inside the bottom tray (2), as shown in FIGS. 2 and 3, the partition member (3) is vertically arranged concentrically in the discharge pipe (30) and the upper end (5a) is The dimensions are set to be slightly lower than the upper end of the discharge pipe (30).
【００１４】なお、スノコ板（６）は、略正方形の平板
状をなす半硬質合成樹脂成形物からなり、中央の円形穴
（６１）と、多数の長孔状の通水孔（６２）…と、片面
側の周縁部に設けられて仕切り部材（３）の押さえ片
（３３）が嵌合する凹部（６３）…を有している。更に
上部濾材層（４Ａ）を構成する多孔性マットにも、中央
に円形穴（４１）が形成されている。The snowboard plate (6) is made of a semi-rigid synthetic resin molded article having a substantially square plate shape, and has a central circular hole (61) and a number of long water holes (62). And a concave portion (63) provided on a peripheral portion on one side and fitted with a pressing piece (33) of the partition member (3). Further, the porous mat constituting the upper filter medium layer (4A) also has a circular hole (41) formed in the center.
【００１５】しかして、水槽濾過装置の組み立ては、既
述のように底トレイ（２）の空気吐出管（２１）にエア
ーストーン（５）を垂直状態に挿嵌すると共に、エルボ
部材（７）の一端側を通気路（２２）の開口部に挿嵌さ
せる一方、仕切り部材（３）の水平仕切り板（３ａ）上
に下部濾材層（４Ｂ）を構成する砂利等の粒状物を載
せ、その上にスノコ板（６）を周縁が押さえ片（３３）
…と受け片（３４）との間に挟まれるように配置し、こ
の仕切り部材（３）を通気路外嵌部（３５）が通気路
（２２）に被さるように底トレイ（２）に内嵌させ、そ
の上に更に上部濾材層（４Ａ）の多孔性マットを載せた
上で、底トレイ（２）に上部カバー（１）を外嵌して濾
過ケース（１０）を構成する。このとき、上部カバー
（１）の両側の各係止片（１５）を底トレイ（２）のス
リット孔（２５ａ）に挿嵌させ、その係止突起（１５
ａ）を係止枠（２５）下縁に係合させると共に、半円形
切欠部（１６）をエルボ部材（７）の挿嵌部に合わせ
る。なお、各構成部材は、このような組み立てを行える
ように寸法設定されている。As described above, the assembling of the water tank filtration device is performed by inserting the air stone (5) into the air discharge pipe (21) of the bottom tray (2) in a vertical state and the elbow member (7). Is inserted into the opening of the ventilation path (22), and on the horizontal partition plate (3a) of the partition member (3), a particulate material such as gravel constituting the lower filter medium layer (4B) is placed. The edge of the slat board (6) is held down by the holding piece (33)
... and the receiving piece (34), and the partition member (3) is inserted into the bottom tray (2) so that the ventilation path outer fitting portion (35) covers the ventilation path (22). Then, a porous mat of the upper filter medium layer (4A) is further placed thereon, and then the upper cover (1) is externally fitted to the bottom tray (2) to form a filtration case (10). At this time, the locking pieces (15) on both sides of the upper cover (1) are inserted into the slit holes (25a) of the bottom tray (2), and the locking projections (15) are formed.
a) is engaged with the lower edge of the locking frame (25), and the semicircular notch (16) is aligned with the insertion portion of the elbow member (7). The dimensions of each component are set so that such an assembly can be performed.
【００１６】かくして組み立てられた水槽濾過装置は、
図２及び図３に示すように、仕切り部材（３）の排出パ
イプ（３０）が縮径した上端部（３０ａ）のみを上部カ
バー（１）の開口部（１１）から外側へ突出してお
り、、仕切り板（３ａ）によって底トレイ（２）の内部
が上側の濾材充填室（２０ａ）と下側の下流室（２０
ｂ）とに区画されており、濾材充填室（２０ａ）にはス
ノコ板（６）を介して積層した上部濾材層（４Ａ）と下
部濾材層（４Ｂ）とからなる２層構造の濾材層（４）が
排出パイプ（３０）の周囲を取り巻くように配置し、下
流室（２０ｂ）は排出パイプ（３０）内に連通してい
る。また、上部濾材層（４Ａ）の上面と上部カバー
（１）の上壁部（１ａ）との間には、上流室（１８）が
構成されている。The aquarium filtration device thus assembled is:
As shown in FIGS. 2 and 3, only the reduced upper end portion (30 a) of the discharge pipe (30) of the partition member (3) projects outward from the opening portion (11) of the upper cover (1). The interior of the bottom tray (2) is divided by the partition plate (3a) into an upper filter material filling chamber (20a) and a lower downstream chamber (20).
b), and the filter medium filling chamber (20a) has a two-layer filter medium layer (4A) and a lower filter medium layer (4B) laminated via a sawboard (6). 4) is arranged so as to surround the discharge pipe (30), and the downstream chamber (20b) communicates with the inside of the discharge pipe (30). An upstream chamber (18) is formed between the upper surface of the upper filter medium layer (4A) and the upper wall (1a) of the upper cover (1).
【００１７】一方、上部カバー（１）と底トレイ（２）
の相互の周壁部（１ｂ）（２ｂ）間には、上部カバー
（１）の各外向き膨出部（１３）の内側部分で上下方向
に沿うダクト状の吸水路（８）を構成している。そし
て、各吸水路（８）は、下端で外部に開放すると共に、
上端で上流室（１８）に連通している。また、上部カバ
ー（１）に設けた上部吸水孔（１７）…は、その上部が
上流室（１８）に臨んでいる。また、上部カバー（１）
の上壁部（１ａ）の内面側に突設された隔壁（１２）…
は、上部濾材層（４Ａ）の多孔性マットを押さえて浮き
上がりを阻止すると共に、濾過ケース（１０）内の上部
に上流室（１８）の空間を確保するスペーサーとして機
能しているが、同時に上流室（１８）を複数の領域に区
画している。しかして、この上流室（１８）の区画され
た各領域には吸水路（８）の１本が連通している。ま
た、底トレイ（２）の底壁部（２ａ）に設けた条片（２
３）…は、仕切り部材（３）の受けをなすが、上部カバ
ー（１）側の隔壁（１２）…と同様に、濾過ケース（１
０）内の下部に下流室（２０ｂ）の空間を確保するスペ
ーサーとして機能し、且つ該下流室（２０ｂ）を複数の
領域に区画している。On the other hand, an upper cover (1) and a bottom tray (2)
Between the peripheral wall portions (1b) and (2b) of the upper cover (1), a duct-shaped water absorption passage (8) is formed along the vertical direction at the inside of each outwardly bulging portion (13) of the upper cover (1). I have. And each water suction channel (8) opens to the outside at the lower end,
The upper end communicates with the upstream chamber (18). The upper water absorption holes (17) provided in the upper cover (1) have upper portions facing the upstream chamber (18). Also, upper cover (1)
Partition walls (12) protruding from the inner surface of the upper wall (1a).
Functions as a spacer that presses up the porous mat of the upper filter medium layer (4A) to prevent the filter from floating up and secures a space for the upstream chamber (18) in the upper part of the filter case (10). The chamber (18) is divided into a plurality of areas. Thus, one of the water suction passages (8) communicates with each of the divided areas of the upstream chamber (18). The strip (2) provided on the bottom wall (2a) of the bottom tray (2)
3) receive the partition member (3), but like the partition (12) on the upper cover (1) side, the filtration case (1)
0) functions as a spacer for securing a space for the downstream chamber (20b) in the lower part, and divides the downstream chamber (20b) into a plurality of regions.
【００１８】このような構成の水槽濾過装置では、エル
ボ部材（７）にエアーポンプの送気チューブを接続し、
水棲生物の鑑賞飼育用水槽の水底部にセットして該エア
ーポンプを作動させると、通気路（２２）を通ってエア
ーストーン（５）内部に供給される空気が当該エアース
トーン（５）の表面から細かい気泡として外部へ放出さ
れ、これら気泡の上昇に伴うエアーリフト効果によって
排出パイプ（３０）の内側空間（１９）に上昇水流を生
じるため、濾過ケース（１０）内が負圧となる。これに
より、外部の水が吸水路（８）…及び上部吸水孔（１
７）…より上流室（１８）内に吸入され、上部濾材層
（４Ａ）及び下部濾材層（４Ｂ）を順次透過する過程で
浄化され、下流室（２０ｂ）から排出パイプ（３０）内
に入って上方外部へ吐出される。In the water tank filtration device having such a configuration, an air supply tube of an air pump is connected to the elbow member (7),
When the air pump is operated by setting the water pump at the bottom of the aquarium for viewing and raising aquatic organisms, the air supplied to the inside of the air stone (5) through the air passage (22) is discharged to the surface of the air stone (5). The air is discharged to the outside as fine air bubbles, and ascending water flow is generated in the inner space (19) of the discharge pipe (30) by the air lift effect accompanying the rise of these air bubbles, so that the inside of the filtration case (10) becomes negative pressure. As a result, external water flows through the water suction passage (8) and the upper water suction hole (1).
7) ... sucked into the upstream chamber (18), purified in the process of sequentially passing through the upper filter medium layer (4A) and the lower filter medium layer (4B), and entering the discharge pipe (30) from the downstream chamber (20b). Is discharged to the upper outside.
【００１９】このとき、排出パイプ（３０）が下部から
上部へ漸次縮径しているから、上昇水流は該排出パイプ
（３０）内の上部に至るほど流速を速めてゆく。しかし
て、エアーストーン（５）の上端（５ａ）が排出パイプ
（３０）の上端近傍に位置して、且つ該排出パイプ（３
０）が上端部（３０ａ）で更に急激に縮径し、該排出パ
イプ（３０）の出口付近で上昇水流の流路が狭く絞られ
た形になっているから、ベンチュリー作用によって該上
昇水流が出口付近で更に急激に流速を速めて排出パイプ
（３０）より外部へ吐出され、この水流に乗って気泡の
上昇速度が速まり、濾過ケース（１０）内への被処理水
の吸引力が増大する。しかも、図６に示すように、流速
の速い上昇水流（矢印Ｕ）の連続した吐出により、排出
パイプ（１０）出口の外側における吐出水流（矢印Ｏ）
の周りに、吐出水流側で流れが上向きになる継続的な回
転水流（矢印Ｒ）を生じ、この回転水流による誘引作用
で排出パイプ（３０）出口に吸引力が働くことになる。At this time, since the diameter of the discharge pipe (30) is gradually reduced from the lower part to the upper part, the rising water flow increases the flow velocity toward the upper part in the discharge pipe (30). Thus, the upper end (5a) of the air stone (5) is located near the upper end of the discharge pipe (30) and the discharge pipe (3)
0) is further reduced in diameter at the upper end portion (30a), and the flow path of the rising water flow is narrowed and narrowed near the outlet of the discharge pipe (30). The flow rate is further rapidly increased near the outlet and discharged to the outside from the discharge pipe (30), and the rising speed of the bubbles is accelerated by this water flow, and the suction power of the water to be treated into the filtration case (10) increases. I do. In addition, as shown in FIG. 6, the continuous discharge of the rising water flow (arrow U) having a high flow velocity causes the discharge water flow (arrow O) outside the outlet of the discharge pipe (10).
, A continuous rotating water flow (arrow R) in which the flow is upward on the discharge water flow side is generated, and a suction force acts on the outlet of the discharge pipe (30) by the attraction effect of the rotating water flow.
【００２０】従って、図示のように排出パイプ（３０）
が短くても、大きなエアーリフト効果が得られ、高い吸
引濾過効率及び浄化効率が達成される。一方、このよう
に排出パイプ（３０）の短い水槽濾過装置では、水槽底
部に設置した状態での外観体裁がよく、また部材製造時
の材料及び成形コストが低減される上、嵩張らないこと
から、製品の輸送や保管に際してスペースをとらず、そ
れだけ輸送及び保管コストも低減される。Therefore, as shown, the discharge pipe (30)
, A large air lift effect can be obtained, and high suction filtration efficiency and purification efficiency can be achieved. On the other hand, in the water tank filtration device having such a short discharge pipe (30), the appearance appearance when installed at the bottom of the water tank is good, and the material and the molding cost at the time of manufacturing the member are reduced, and the material is not bulky. The product does not take up space for transportation and storage, and the transportation and storage costs are reduced accordingly.
【００２１】なお、エアーストーン（５）の上端（５
ａ）は、排出パイプ（３０）の上端近傍に位置すればよ
いが、多くの試作試験の結果から、特に排出パイプ（３
０）の上端よりも１〜３ｍｍ低い位置にあるときに最も
大きい吸引力が得られることが判明している。The upper end (5) of the air stone (5)
a) may be located in the vicinity of the upper end of the discharge pipe (30).
It has been found that the largest suction force can be obtained when it is at a position 1 to 3 mm lower than the upper end of 0).
【００２２】上記実施例では、濾過ケース（１０）の側
面部のダクト状の吸水路（８）…と上部吸水孔（１７）
…とから吸入した被処理水を、多孔性マットからなる上
部濾材層４Ａと砂利等の粒状物充填層からなる下部濾材
層４Ｂに順次透過させて汚れの濾過除去を行うようにし
ているが、この発明の水槽濾過装置では、吸水口の数と
配置、濾材の種類、濾過ケース（１０）内での処理水の
経路、濾過ケース（１０）及び排出パイプ（３０）の構
成部材の形状と組み付け形態等について、該実施例以外
の様々な構成を採用できる。In the above embodiment, the duct-shaped water absorption passages (8) on the side surface of the filtration case (10) and the upper water absorption hole (17).
The water to be treated sucked from the above is successively transmitted through an upper filter medium layer 4A made of a porous mat and a lower filter medium layer 4B made of a layer filled with a particulate matter such as gravel to filter and remove dirt. In the water tank filtration device of the present invention, the number and arrangement of the water suction ports, the type of the filter medium, the path of the treated water in the filtration case (10), and the shapes and assembly of the components of the filtration case (10) and the discharge pipe (30). Various configurations other than the embodiment can be adopted for the form and the like.
【００２３】[0023]
【発明の効果】請求項１の発明によれば、例えば金魚や
熱帯魚等の水棲生物の鑑賞飼育用水槽の水底部にセット
し、エアーポンプより供給される空気を気泡として放出
する際のエアーリフト効果によって水を吸引濾過する水
槽濾過装置として、処理水及び気泡を排出する排水パイ
プを短くしても充分なエアーリフト効果を確保でき、も
って大きな吸水力による優れた濾過能力を備え、水槽内
に外観体裁よく設置でき、且つ製作、輸送、保管等のコ
ストを低減できるものが提供される。According to the first aspect of the present invention, an air lift for releasing air supplied from an air pump as air bubbles by setting the water supplied to the bottom of an aquarium for watching and breeding aquatic organisms such as goldfish and tropical fish. As a water tank filtration device that suction-filters water by its effect, a sufficient air lift effect can be secured even if the drainage pipe that discharges treated water and air bubbles is shortened, and it has excellent filtration capacity due to large water absorption power, and it is installed in the water tank. A device that can be installed in a good appearance and that can reduce the cost of production, transportation, storage, and the like is provided.
【００２４】請求項２及び請求項３の発明によれば、上
記の水槽濾過装置として、より吸水力に優れるものが提
供される。According to the second and third aspects of the present invention, there is provided the above-mentioned water tank filtering apparatus having a higher water absorbing power.
【図１】この発明の一実施例に係る水槽濾過装置を示
し、（Ａ）図は平面図、（Ｂ）図は正面図、（Ｃ）図は
右側面図である。1A and 1B show a water tank filtration device according to an embodiment of the present invention, wherein FIG. 1A is a plan view, FIG. 1B is a front view, and FIG. 1C is a right side view.
【図２】図１（Ａ）図におけるII−II線断面図である。FIG. 2 is a sectional view taken along line II-II in FIG.
【図３】図１（Ａ）図におけるIII −III 線断面図であ
る。FIG. 3 is a sectional view taken along line III-III in FIG.
【図４】同水槽濾過装置の上部カバーと上部濾材層の多
孔性マットとスノコ板を示す分解斜視図である。FIG. 4 is an exploded perspective view showing an upper cover, a porous mat of an upper filter medium layer, and a sawboard of the water tank filtration device.
【図５】同水槽濾過装置の仕切り部材と底トレイを示す
分解斜視図である。FIG. 5 is an exploded perspective view showing a partition member and a bottom tray of the water tank filtration device.
【図６】同水槽濾過装置の排出パイプ近傍における処理
水及び気泡の挙動を示す模式断面図である。FIG. 6 is a schematic cross-sectional view showing the behavior of treated water and bubbles near a discharge pipe of the water tank filtration device.
４Ａ…上部濾材層 ４Ｂ…下部濾材層 ５…エアーストーン ５ａ…上端 ８…吸水路（吸水口） １０…濾過ケース １７…上部吸水孔（吸水口） １９…内部空間 ３０…排出パイプ ３０ａ…上端部 4A: Upper filter medium layer 4B: Lower filter medium layer 5: Air stone 5a: Upper end 8: Water absorption channel (water intake) 10: Filter case 17: Upper water absorption hole (water intake) 19: Internal space 30: Discharge pipe 30a: Upper end
Claims (3)
排出パイプと吸水口及び気泡発生手段が設けられ、気泡
発生手段にて発生させた気泡の上昇に伴って排出パイプ
内に生じる上昇水流により、前記吸水口から水を吸引し
て前記濾材に通して排出パイプから上方へ吐出する水槽
濾過装置において、 前記気泡発生手段が、内側に導入される空気を細かい気
泡として外側へ放出する、多孔質で上端が閉塞した中空
軸状のエアーストーンからなり、 前記排水パイプの上端部が縮径され、この排出パイプ内
に同心状に垂直配置した前記エアーストーンの上端が当
該排出パイプの上端近傍に位置していることを特徴とす
る水槽濾過装置。An upright discharge pipe, a water suction port, and a bubble generating means are provided in a filtration case loaded with a filter medium, and an ascending water flow generated in the discharge pipe as bubbles generated by the bubble generating means rise. According to the water tank filtration device that sucks water from the water suction port, passes through the filter medium, and discharges upward from the discharge pipe, the bubble generating means discharges air introduced inside as fine bubbles to the outside, The upper end of the drain pipe is reduced in diameter, and the upper end of the air stone vertically arranged concentrically in the discharge pipe is near the upper end of the discharge pipe. An aquarium filtration device, which is located.
の上端よりも１〜３ｍｍ低い位置にある請求項１記載の
水槽濾過装置。2. The aquarium filtration device according to claim 1, wherein the upper end of the air stone is located at a position lower than the upper end of the discharge pipe by 1 to 3 mm.
縮径し、更に上端部で急激に縮径した形状を有する請求
項１又は２に記載の水槽濾過装置。3. The aquarium filtration device according to claim 1, wherein the drain pipe has a shape whose diameter is gradually reduced from a lower portion to an upper portion and whose diameter is sharply reduced at an upper end portion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000075936A JP3363866B2 (en) | 2000-03-17 | 2000-03-17 | Water tank filtration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000075936A JP3363866B2 (en) | 2000-03-17 | 2000-03-17 | Water tank filtration device |
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| Publication Number | Publication Date |
|---|---|
| JP2001258422A true JP2001258422A (en) | 2001-09-25 |
| JP3363866B2 JP3363866B2 (en) | 2003-01-08 |
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|---|---|---|---|---|
| TWI757082B (en) * | 2021-02-03 | 2022-03-01 | 謝志欽 | Ultra-fine bubble generating device |
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2000
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|---|---|---|---|---|
| TWI757082B (en) * | 2021-02-03 | 2022-03-01 | 謝志欽 | Ultra-fine bubble generating device |
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