JP2001029953A - Filter type water purifier and its operation method - Google Patents
Filter type water purifier and its operation methodInfo
- Publication number
- JP2001029953A JP2001029953A JP11234505A JP23450599A JP2001029953A JP 2001029953 A JP2001029953 A JP 2001029953A JP 11234505 A JP11234505 A JP 11234505A JP 23450599 A JP23450599 A JP 23450599A JP 2001029953 A JP2001029953 A JP 2001029953A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- water
- raw water
- membrane unit
- filtration
- 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.)
- Pending
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、主として水を濾過し
て飲用水にするのに用いられる濾過形の浄水器に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter-type water purifier mainly used for filtering water into drinking water.
【０００２】[0002]
【従来の技術】従来、災害地その他、良質の飲料水が得
られない場所では、各種の濾過材を使用した濾過形の浄
水器が使用され、河川や池沼の水を濾過して飲用に供す
ることが行われている。そのような天然の水源には、土
や埃の他に多種の病原菌が混在し混濁物の状態となって
いるので、細菌やカビなどの微生物のレベルまで濾過す
ることのできる優れた濾過材が求められていた。このよ
うな要求を満たす濾過材として中空糸膜が開発された。
中空糸膜は合成樹脂によって作られた極めて細い管状を
なし、その管の壁面に無数の微小な孔が形成されてい
て、その孔が通水孔として作用するものである。近年、
そのような中空糸膜の多数を束ねて飲用水の水源へ浸
し、管の中側から飲料水を取り出す形式の浄水器が開発
された。そこで、細い中空糸膜を用いて多量の飲料水を
効率よく濾過することのでき、さらに、構造が簡単で小
型の濾過形浄水器が開発された。2. Description of the Related Art Conventionally, in disaster areas and other places where high-quality drinking water cannot be obtained, filtration-type water purifiers using various types of filtering materials have been used to filter water from rivers and ponds for drinking. That is being done. Such natural water sources contain various pathogens in addition to soil and dust, and are in a turbid state.Therefore, excellent filtration media that can filter to the level of microorganisms such as bacteria and fungi are available. Was sought. Hollow fiber membranes have been developed as filter media that meet such requirements.
The hollow fiber membrane has an extremely thin tubular shape made of a synthetic resin, and has a myriad of minute holes formed on the wall surface of the tube, and the holes function as water holes. recent years,
A type of water purifier has been developed in which a large number of such hollow fiber membranes are bundled and immersed in a drinking water source to take out drinking water from the inside of the tube. Therefore, a small-sized filtration-type water purifier that can efficiently filter a large amount of drinking water using a thin hollow fiber membrane and has a simple structure has been developed.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、中空糸
膜は微生物の通過を阻止する程度の細かい通水孔を有す
るので、これを混濁物が多く含まれる水源へ浸すと、短
時間の使用で前記通水孔が詰まり、浄化機能が損なわれ
る不具合があった。また、中空糸膜が詰まった場合、外
面を清水で洗浄すれば、再び使用できるようになるが、
良質の飲料水に事欠く場所では、洗浄用の清水の入手も
容易でない上、前記中空糸膜を取り出したり洗浄したり
することで保守が面倒であった。なお、従来から濾過式
のフィルタ、例えば気流中の塵埃を除去するのに用いら
れるバッグフィルタでは、エレメントが目詰まりしたと
き、気流を一瞬だけ停止し、その間に、エレメントの外
面をビータで叩いて目詰まりした異物を叩き落とした
り、エレメントの下流側に一瞬だけ正圧を印加して、そ
の衝撃で付着した異物を叩き落とす技術が慣用されてい
る。However, since the hollow fiber membrane has fine water holes that prevent the passage of microorganisms, if it is immersed in a water source containing a large amount of turbid matter, it can be used in a short time. There was a problem that the water passage hole was clogged and the purification function was impaired. Also, if the hollow fiber membrane is clogged, you can use it again by washing the outer surface with fresh water,
In places lacking high-quality drinking water, it is not easy to obtain clean water for washing, and maintenance is troublesome by taking out and washing the hollow fiber membrane. Conventionally, in a filter of a filtration type, for example, a bag filter used for removing dust in an air flow, when the element is clogged, the air flow is stopped for a moment, and during that time, the outer surface of the element is hit with a beater. A technique of knocking down a clogged foreign substance or applying a positive pressure to the downstream side of the element for a moment and knocking down the foreign substance attached by the impact is commonly used.
【０００４】[0004]
【課題を解決するための手段】上記課題は、原水の水源
から給水される原水ケースに、無数の中空糸膜と各中空
糸膜の内部へ通じる集合管とを有する濾過膜ユニットを
収め、前記集合管の内部を清水ポンプの吸入側と吐出側
とのいずれかと選択的に連結する切替え手段を設ける一
方、前記中空糸膜の下方に外部から圧気を供給される給
気管を設け、その給気管に内外連通する多数の細孔を設
けることによって解決される。そこでは、前記濾過膜ユ
ニットは上下方向に向けて配置された左右一対の集合管
の間を略水平方向へ配置した無数の中空糸膜によって連
結し、一対の保持箱の上下を連結管で連結して濾過膜ユ
ニットを形成すると共に、その濾過膜ユニットの複数を
原料水ケース内へ収納するのが好ましい。また、前記集
合管の間を連結する中空糸膜の外面を、上下方向へ伸び
る波形の案内板で覆って構成することが一層好ましい。
さらに、装置の運転方法として、原水ケースへ浸漬した
無数の中空糸膜の端部を集合管を介して清水ポンプへ接
続した濾過膜ユニットと、その濾過膜ユニットの下方に
多数の細孔からなる発泡手段とを用い、前記清水ポンプ
の吸入側と吐出側とを切り替え可能に構成するととも
に、前記発泡手段の動作中に清水ポンプの切り替え動作
を行わせるのが好ましい。The object of the present invention is to provide a raw water case supplied from a raw water source with a filtration membrane unit having a myriad of hollow fiber membranes and a collecting pipe communicating with the inside of each hollow fiber membrane. While a switching means for selectively connecting the inside of the collecting pipe to either the suction side or the discharge side of the fresh water pump is provided, an air supply pipe to which externally supplied compressed air is provided below the hollow fiber membrane, and the air supply pipe is provided. The problem is solved by providing a large number of pores communicating with the inside and outside of the vehicle. There, the filtration membrane units are connected by a myriad of hollow fiber membranes arranged in a substantially horizontal direction between a pair of left and right collecting pipes arranged vertically and connected by a connecting pipe between the upper and lower sides of a pair of holding boxes. It is preferable that the filtration membrane unit is formed in the same manner as above, and a plurality of the filtration membrane units are accommodated in the raw water case. It is more preferable that the outer surface of the hollow fiber membrane connecting between the collecting pipes is covered with a corrugated guide plate extending vertically.
Further, as an operation method of the apparatus, a filter membrane unit in which the ends of countless hollow fiber membranes immersed in a raw water case are connected to a fresh water pump via a collecting pipe, and a number of pores are provided below the filter membrane unit. It is preferable that a foaming means is used to switch between the suction side and the discharge side of the fresh water pump, and that the switching operation of the fresh water pump is performed during the operation of the foaming means.
【０００５】[0005]
【作用】原水ケース内へ供給される原水は、中空糸膜の
内側へ浸透する際に混濁物が濾過され、清水となって原
水ケースから取り出される。濾過膜ユニットに目詰まり
を生じたとき、切替え手段によって清水ポンプの吸入側
と吐出側とを逆方向に接続することにより、清水ポンプ
から吐出される清水を逆送させると、水ハンマー現象に
よって一瞬高い圧力が中空糸膜の内面に作用し、目詰ま
りしていた混濁物を原水内へ押し戻す。そして、清水ポ
ンプを逆接続にする際、予め、給気管に空気を送ってお
けば、給気管の細孔からでる無数の泡が下方から浮上
し、中空糸膜から分離した混濁物を上方へ運び濾過膜ユ
ニットから排除する。なお、給気管の細孔から昇る泡は
濾過膜ユニットの中を通過する際、波形の案内板によっ
て複雑な動きを与えられ、中空糸膜に付着した混濁物と
の接触機会が増える。When the raw water supplied into the raw water case penetrates into the inside of the hollow fiber membrane, the turbid matter is filtered, and the raw water is taken out of the raw water case as fresh water. When clogging occurs in the filtration membrane unit, the switching means connects the suction side and the discharge side of the fresh water pump in opposite directions, so that the fresh water discharged from the fresh water pump is reversely fed. High pressure acts on the inner surface of the hollow fiber membrane and pushes the clogged turbid matter back into the raw water. And, when making the reverse connection of the fresh water pump, if air is sent to the air supply pipe in advance, countless bubbles coming out of the pores of the air supply pipe will float from below, and the turbid matter separated from the hollow fiber membrane will be upward. Carry out and remove from filtration membrane unit. The bubbles rising from the pores of the air supply pipe are given complicated movements by the corrugated guide plate when passing through the filtration membrane unit, and the chance of contact with the turbid matter attached to the hollow fiber membrane increases.
【０００６】[0006]
【実施例】以下、本願の一実施態様を図面によって説明
する。図１、図２中、１０は本願発明を利用した濾過形
浄水器である。濾過形浄水器１０は濾過を要する原水が
供給される原水ケース１１を有する。原水は通常、河川
または池沼、あるいはプールや防火槽などの水源から取
水される。１２は原水を原水ケース１１へ給送するため
の原水ポンプ、１３は原水ケース１１内の水位を一定に
保つための水位弁である。原水ケース１１の中には、原
水を濾過して清水を取り出す濾過膜ユニット２０の複数
対が収められている。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and 2, reference numeral 10 denotes a filtration type water purifier utilizing the present invention. The filtration type water purifier 10 has a raw water case 11 to which raw water requiring filtration is supplied. Raw water is usually withdrawn from rivers or ponds, or from water sources such as pools and fire tanks. Reference numeral 12 denotes a raw water pump for feeding raw water to the raw water case 11, and reference numeral 13 denotes a water level valve for keeping the water level in the raw water case 11 constant. In the raw water case 11, a plurality of pairs of filtration membrane units 20 for filtering raw water and extracting fresh water are stored.
【０００７】濾過膜ユニット２０は図３で示すように、
左右の両側に上下方向へ向けて集合管２１、２１が配置
されており、それら集合管２１、２１の上端と下端はそ
れぞれ連結管２２、２２によって相互に連結されてい
る。かくて、集合管２１、２１と連結管２２、２２とは
略四角形の額縁状の枠体１８を構成する。この枠体１８
は原水ケース１１に固定された取出し管２３、および下
側の連結管２２を支持する支え管２４によって、原水ケ
ース１１へ着脱可能に取り付けられている。すなわち、
前記取出し管２３と支え管２４は原水ケース１１の内面
に溶着された支持管１４、１４へジョイントｆによって
着脱可能に連結される。２５は連結金具であり、ボルト
２６によって前記連結管２２と取出し管２３あるいは支
え管２４とを連結する。[0007] As shown in FIG.
Collecting pipes 21 and 21 are arranged on both left and right sides in the vertical direction, and upper ends and lower ends of the collecting pipes 21 and 21 are connected to each other by connecting pipes 22 and 22, respectively. Thus, the collecting pipes 21 and 21 and the connecting pipes 22 and 22 form a substantially rectangular frame 18. This frame 18
Is detachably attached to the raw water case 11 by a take-out pipe 23 fixed to the raw water case 11 and a support pipe 24 that supports the lower connecting pipe 22. That is,
The take-out tube 23 and the support tube 24 are detachably connected to the support tubes 14, 14 welded to the inner surface of the raw water case 11 by a joint f. Reference numeral 25 denotes a connection fitting which connects the connection pipe 22 to the take-out pipe 23 or the support pipe 24 by a bolt 26.
【０００８】両集合管２１、２１の互いに対向する面
は、図４で示すように、四角形の平面をなし、そこには
に無数の中空糸膜２７の一端と他端とが縦方向に２列に
配列された位置で連結されている。各中空糸膜２７は合
成樹脂によって作られた多孔質の極めて細い管であり、
その管の内部は前記集合管２１、２１の内部へ開口して
いる。前記集合管２１、２１の内部は上側の連結管２２
と中間管２９を通じて取出し管２３へ連結されている。
よって、後述する清水ポンプ４０の作動によって中空糸
膜２７の内部へ吸引力が波及すると、中空糸膜２７の内
外の圧力差によって原水ケース１１中の原水が、中空糸
膜２７の管壁を通過して内部へ浸透して来る、その際、
原水中の混濁物は中空糸膜２７の管壁に形成された微小
孔を通過できず、そこを通過する清水と分離され、清水
のみが外部へ取り出される。As shown in FIG. 4, the surfaces of the collecting pipes 21, 21 facing each other form a square plane, on which one end and the other end of an infinite number of hollow fiber membranes 27 are vertically arranged. They are connected at the positions arranged in the column. Each hollow fiber membrane 27 is a porous extremely thin tube made of a synthetic resin,
The inside of the pipe is open to the inside of the collecting pipes 21 and 21. The inside of the collecting pipes 21 is an upper connecting pipe 22.
And an intermediate pipe 29 to the take-out pipe 23.
Therefore, when the suction force spreads to the inside of the hollow fiber membrane 27 by the operation of the fresh water pump 40 described later, the raw water in the raw water case 11 passes through the tube wall of the hollow fiber membrane 27 due to the pressure difference between the inside and the outside of the hollow fiber membrane 27. And penetrates inside,
The turbid matter in the raw water cannot pass through the micropores formed in the tube wall of the hollow fiber membrane 27, is separated from the clear water passing therethrough, and only the clear water is taken out.
【０００９】１５は枠体１８の両面を覆って取り付けら
れた波形の案内板であり、その波形が前記中空糸膜と平
行になる態様で前記枠体１８に取り付けられている。１
６は案内板を前記枠体１８へ取り付けるためのボルトで
ある。３０は原水ケース１１の底部に取り付けられた給
気管である。その給気管３０は図１で示すように、先端
部が閉じられ、他端が電磁開閉式の空気弁ＳＶ４を介し
て空気ポンプ３１に連結されている。給気管３０には無
数の小孔が設けられている。具体的には管の外周に小孔
を設けると共に、その外面を通気性の発泡材によって包
んで作られている。よって、空気弁ＳＶ４が開くと空気
ポンプ３１から送られる空気は、給気管３０から微細な
無数の気泡となって原水中を浮上する。３２は給気管３
０の終端近くに設けられた気泡調節弁であり、給気管３
０から大気中へ放出される空気量を調節することによ
り、給気管３０で発生する気泡の量を加減する。気泡は
水面へ達する途中で、２枚の案内板１５、１５の間を通
過し、その際、中空糸膜２７の表面に混濁物があると、
それに付着し一緒になって上昇する。Reference numeral 15 denotes a corrugated guide plate mounted on both sides of the frame 18 and attached to the frame 18 in such a manner that its waveform is parallel to the hollow fiber membrane. 1
Reference numeral 6 denotes a bolt for attaching the guide plate to the frame 18. Reference numeral 30 denotes an air supply pipe attached to the bottom of the raw water case 11. As shown in FIG. 1, the air supply pipe 30 has a distal end closed and the other end connected to an air pump 31 via an electromagnetic open / close type air valve SV4. The air supply pipe 30 is provided with countless small holes. Specifically, a small hole is provided on the outer periphery of the tube, and the outer surface is wrapped with a breathable foam material. Therefore, when the air valve SV4 is opened, the air sent from the air pump 31 becomes innumerable fine bubbles from the air supply pipe 30 and floats in the raw water. 32 is an air supply pipe 3
0 is an air bubble control valve provided near the end of
By adjusting the amount of air released from 0 to the atmosphere, the amount of air bubbles generated in the air supply pipe 30 is adjusted. On the way to the water surface, the air bubbles pass between the two guide plates 15, 15. At this time, if there is a turbid substance on the surface of the hollow fiber membrane 27,
It attaches to it and rises together.
【００１０】次に、前記取出し管２３から清水を取り出
すための管路について説明する。図１で示すように、濾
過膜ユニット２０から導出される取出し管２３には、清
水ポンプ４０を介して蛇口その他の水口４１へ通じる給
水路４３が接続されている。給水路４３には常閉形の電
磁開閉弁ＳＶ１と前記清水ポンプ４０が介装されてお
り、さらに清水ポンプ４０の下流側は常開形の電磁開閉
弁ＳＶ２を介して前記水口４１に至る。４２は蓄圧器で
あり、給水路４３の清水ポンプ４０より吐出側４０ｂに
連結されており、水口４１へ常に略一定の圧力を作用さ
せる。Next, a pipe for taking out fresh water from the take-out pipe 23 will be described. As shown in FIG. 1, a water supply channel 43 leading to a faucet or other water port 41 via a fresh water pump 40 is connected to the take-out pipe 23 led out from the filtration membrane unit 20. The water supply passage 43 is provided with a normally closed solenoid on-off valve SV1 and the fresh water pump 40, and the downstream side of the fresh water pump 40 reaches the water port 41 via a normally open solenoid on-off valve SV2. Reference numeral 42 denotes a pressure accumulator, which is connected to the discharge side 40 b of the water supply passage 43 from the fresh water pump 40, and constantly applies a substantially constant pressure to the water port 41.
【００１１】よって、水口４１で水が消費されると、給
水路４３を通して蓄圧器４２内の圧力が低下する。その
圧力低下は図示してないセンサにより検出され、その信
号によって電磁開閉弁ＳＶ１をおよびＳＶ４を開弁さ
せ、同時に清水ポンプ４０を動作させる。その結果、濾
過膜ユニット２０へ泡が作用し清水が吸引される。吸引
された清水は図中、実線の矢印に従って電磁開閉弁ＳＶ
１を経て清水ポンプ４０へ入り、蓄圧器４２内の圧力を
回復させる。Therefore, when water is consumed at the water outlet 41, the pressure in the accumulator 42 decreases through the water supply channel 43. The pressure drop is detected by a sensor (not shown), and the signal causes the electromagnetic on / off valves SV1 and SV4 to open, and at the same time, the fresh water pump 40 to operate. As a result, bubbles act on the filtration membrane unit 20, and fresh water is sucked. The sucked fresh water is supplied to the solenoid on-off valve SV according to the solid arrow in the figure.
After passing through 1, it enters the fresh water pump 40 and recovers the pressure in the accumulator 42.
【００１２】前記清水ポンプ４０には、前記給水路４３
の他に、逆洗路５０が接続されている。逆洗路５０は給
水路４３へ接続された逆洗タンク５１から清水ポンプ４
０、常閉形電磁開閉弁ＳＶ３を経て、前記取出し管２３
へ連結されている。逆洗路５０は、清水ポンプ４０が蓄
圧器４２の圧力を回復する動作をしているとき、濾過膜
ユニット２０の中空糸膜２７に生じる目詰まりが大きく
なると、その目詰まりを排除するべく作動する。清水ポ
ンプ４０の運転中、中空糸膜２７の目詰まり量が多くな
ると、清水の吸入が難しくなり、吸入側４０ａの圧力が
大きく低下する。この圧力低下は図示してないセンサに
よって検出され切替え手段たる電磁開閉弁が作動する。
すなわち、常閉形電磁開閉弁ＳＶ３、ＳＶ４が開き、開
弁中の常閉形電磁開閉弁ＳＶ１と常開形電磁開閉弁ＳＶ
２が閉じる。これによって逆洗路５０が動作する。The fresh water pump 40 is provided with the water supply passage 43.
In addition, a reverse washing path 50 is connected. The backwashing channel 50 is connected to the freshwater pump 4 from the backwashing tank 51 connected to the water supply channel 43.
0, through the normally closed solenoid on-off valve SV3,
Connected to When the fresh water pump 40 operates to recover the pressure of the accumulator 42 and the clogging occurring in the hollow fiber membrane 27 of the filtration membrane unit 20 increases while the fresh water pump 40 is operating, the backwashing path 50 is operated to eliminate the clogging. I do. If the amount of clogging of the hollow fiber membrane 27 increases during operation of the fresh water pump 40, suction of fresh water becomes difficult, and the pressure on the suction side 40a drops significantly. This pressure drop is detected by a sensor (not shown), and an electromagnetic on-off valve as a switching means operates.
That is, the normally closed solenoid on-off valves SV3 and SV4 are opened, and the normally closed solenoid on-off valves SV1 and SV1 that are being opened are opened.
2 closes. Thereby, the reverse washing path 50 operates.
【００１３】常閉形電磁開閉弁ＳＶ１と常開形電磁開閉
弁ＳＶ２が閉じ、常開形電磁開閉弁ＳＶ３が開くと、常
開形電磁開閉弁ＳＶ２より上流側の給水路４３に、清水
ポンプ４０の吐出圧力が一気に作用する。このときの圧
力は水流を替えるため清水ポンプ４０の吐出圧力より遙
かに高くなる、いわゆる水ハンマー現象を生じる。水ハ
ンマー現象によって生じた高い圧力は取出し管２３を経
て中空糸膜２７の内面に作用し、中空糸膜２７の外面に
付着した異物、すなわち、混濁物を原水中へ押し出す。When the normally-closed solenoid valve SV1 and the normally-open solenoid valve SV2 are closed and the normally-open solenoid valve SV3 is opened, the fresh water pump 40 is connected to the water supply passage 43 upstream of the normally-open solenoid valve SV2. Discharge pressure acts all at once. The pressure at this time is much higher than the discharge pressure of the fresh water pump 40 because the water flow is changed, and a so-called water hammer phenomenon occurs. The high pressure generated by the water hammer phenomenon acts on the inner surface of the hollow fiber membrane 27 via the take-out pipe 23, and pushes out the foreign matter, that is, the turbid matter, attached to the outer surface of the hollow fiber membrane 27 into the raw water.
【００１４】押し戻された混濁物は、清水ポンプ４０か
ら引き続き逆送される清水に流され中空糸膜２７から離
れる。そして、給気管３０から生じる気泡により捕捉さ
れて中空糸膜２７から分離し原水の水面へ浮上し、ある
いはその後、沈殿する。なお、清水ポンプ４０から逆送
される清水は常閉の電磁開閉弁ＳＶ５を経て逆洗タンク
５１から供給される。この状態を数秒間、継続させた
後、清水ポンプ４０を元の給送状態へ復帰させる。The turbid matter which has been pushed back is flowed into fresh water which is continuously fed back from the fresh water pump 40 and separated from the hollow fiber membrane 27. Then, they are trapped by bubbles generated from the air supply pipe 30 and separated from the hollow fiber membrane 27 and float on the surface of the raw water, or settle thereafter. The fresh water sent back from the fresh water pump 40 is supplied from the backwash tank 51 via the normally closed solenoid valve SV5. After continuing this state for several seconds, the fresh water pump 40 is returned to the original feeding state.
【００１５】なお、上記した逆洗路５０を作動させる動
作は、清水ポンプ４０の吸入圧力が低下した都度、行わ
せる設定としてもよいが、一旦、吸入圧力が低下したと
き、数回に亘って連続的に行わせ、濾過膜ユニット２０
に衝撃を与える設定としてもよい。The operation of activating the backwashing path 50 may be set to be performed each time the suction pressure of the fresh water pump 40 is reduced. However, once the suction pressure is reduced, the operation is repeated several times. Continuously, the filtration membrane unit 20
May be set to give an impact.
【００１６】[0016]
【発明の効果】請求項１によれば、濾過膜ユニットが目
詰まりしたとき、濾過膜ユニットを原水ケースから取り
出すことなく、目詰まりした混濁物を除去できる。ま
た、目詰まり除去に際して、洗浄する作業がなく、人手
を要しない。さらに、洗浄には濾過膜ユニットから得ら
れる清水が用いられるから、洗浄用の水を準備する必要
がない。請求項２によれば、濾過膜ユニットは平板状に
形成され、原水ケースへの取り付けが容易であり、か
つ、多数を整然と収容することでできる。さらに、各中
空糸膜へ下方から浮上する泡をむらなく、作用させるこ
とができる。請求項３によれば、泡と中空糸膜から剥離
した混濁物との接触機会が増え、混濁物が効率よく排除
される。請求項４によれば、気泡の発生している中で、
給送動作や逆洗動作を行わせるから、原水中の混濁物
や、逆洗によって一旦中空糸膜から分離した混濁物が再
び中空糸膜へ付着する機会が減じ、中空糸膜の目詰まり
を減じることができる。などの効果がある。According to the first aspect, when the filtration membrane unit is clogged, the clogged turbid matter can be removed without removing the filtration membrane unit from the raw water case. In addition, there is no cleaning operation for removing clogs, and no manual operation is required. Further, since fresh water obtained from the filtration membrane unit is used for washing, there is no need to prepare water for washing. According to the second aspect, the filtration membrane unit is formed in a flat plate shape, can be easily attached to the raw water case, and can be housed in a large number in an orderly manner. Further, bubbles floating from below on each hollow fiber membrane can be uniformly applied. According to the third aspect, the chance of contact between the foam and the turbid matter peeled from the hollow fiber membrane increases, and the turbid matter is efficiently removed. According to claim 4, while air bubbles are generated,
Since the feeding operation and the backwashing operation are performed, the chance that the turbid matter in the raw water or the turbid matter once separated from the hollow fiber membrane by the backwashing adheres to the hollow fiber membrane again decreases, and the clogging of the hollow fiber membrane is reduced. Can be reduced. And so on.
【図面の簡単な説明】[Brief description of the drawings]
【図１】この発明の一実施態様である濾過形浄水器の配
管図である。FIG. 1 is a piping diagram of a filtration type water purifier according to an embodiment of the present invention.
【図２】図１中のＩＩ−ＩＩ断面図である。FIG. 2 is a sectional view taken along the line II-II in FIG.
【図３】要部である濾過膜ユニットの正面図である。FIG. 3 is a front view of a filtration membrane unit as a main part.
【図４】図３のＩＶ−ＩＶ断面図である。FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;
１０・・・・濾過形浄水器 １１・・・・原水ケース １２・・・・原水ポンプ １３・・・・水位弁 １５・・・・案内板 １６・・・・ボルト １８・・・・枠体 ２０・・・・濾過膜ユニット ２１・・・・集合管 ２２・・・・連結管 ２３・・・・取出し管 ２４・・・・支え管 ２５・・・・連結金具 ２６・・・・ボルト ２７・・・・中空糸膜 ２９・・・・中間管 ３０・・・・給気管 ３１・・・・空気ポンプ ３２・・・・気泡調節弁 ４０・・・・清水ポンプ ４０ａ・・・吸入側 ４０ｂ・・・吐出側 ４１・・・・水口 ４２・・・・給水路 ４３・・・・蓄圧器 ５０・・・・逆洗路 ５１・・・・逆洗タンク ｆ・・・・ジョイント ＳＶ１、ＳＶ３、ＳＶ４、ＳＶ５・・・・常閉形電磁開
閉弁 ＳＶ２・・・・常開形電磁開閉弁10 Filtration type water purifier 11 Raw water case 12 Raw water pump 13 Water level valve 15 Guide plate 16 Bolt 18 Frame 20: Filtration membrane unit 21: Collecting pipe 22: Connection pipe 23: Extraction pipe 24: Support pipe 25: Connection fitting 26: Bolt 27 ... hollow fiber membrane 29 ... intermediate pipe 30 ... air supply pipe 31 ... air pump 32 ... bubble control valve 40 ... fresh water pump 40a ... suction side 40b ... Discharge side 41 ... Water outlet 42 ... Water supply channel 43 ... Pressure accumulator 50 ... Backwash channel 51 ... Backwash tank f ... Joint SV1, SV3 , SV4, SV5 ... normally-open solenoid valve SV2 ... normally-open solenoid valve
Claims (4)
無数の中空糸膜と各中空糸膜の内部へ通じる集合管とを
有する濾過膜ユニットを収め、前記集合管の内部を清水
ポンプの吸入側と吐出側とのいずれかと選択的に連結す
る切替え手段を設ける一方、前記中空糸膜の下方に外部
から圧気を供給される給気管を設け、その給気管に内外
連通する多数の細孔を設けてなる濾過形浄水器。1. A raw water case supplied from a raw water source,
Switching means for housing a filtration membrane unit having innumerable hollow fiber membranes and a collecting pipe communicating with the inside of each hollow fiber membrane, and selectively connecting the inside of the collecting pipe to one of a suction side and a discharge side of a fresh water pump. A filtration water purifier provided with an air supply pipe below the hollow fiber membrane to which compressed air is supplied from the outside, and provided with a large number of pores communicating with the inside and outside of the air supply pipe.
上下方向に向けて配置された左右一対の集合管の間を略
水平方向へ配置した無数の中空糸膜によって連結し、一
対の保持箱の上下を連結管で連結して濾過膜ユニットを
形成すると共に、その濾過膜ユニットの複数を原料水ケ
ース内へ収納してなる濾過形浄水器。2. The filter membrane unit according to claim 1, wherein the pair of left and right collecting pipes arranged in the vertical direction are connected by countless hollow fiber membranes arranged in a substantially horizontal direction. A filter-type water purifier comprising a filtration membrane unit formed by connecting the upper and lower sides of the filtration membrane unit by a connecting pipe, and a plurality of the filtration membrane units are housed in a raw water case.
する中空糸膜の外面を、上下方向へ伸びる波形の案内板
で覆って構成した濾過形浄水器。3. The filter type water purifier according to claim 2, wherein the outer surface of the hollow fiber membrane connecting between the collecting pipes is covered with a vertically extending corrugated guide plate.
部を集合管を介して清水ポンプへ接続した濾過膜ユニッ
トと、その濾過膜ユニットの下方に多数の細孔からなる
発泡手段とを用い、前記清水ポンプの吸入側と吐出側と
を切り替え可能に構成するとともに、前記発泡手段の動
作中に清水ポンプの切り替え動作を行わせる濾過形浄水
器の運転方法。4. A filtration membrane unit in which the ends of countless hollow fiber membranes immersed in a raw water case are connected to a fresh water pump via a collecting pipe, and a foaming means comprising a large number of pores below the filtration membrane unit. And a method of operating a filtration type water purifier in which the suction side and the discharge side of the fresh water pump are switchable, and the switching operation of the fresh water pump is performed during the operation of the foaming means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11234505A JP2001029953A (en) | 1999-07-16 | 1999-07-16 | Filter type water purifier and its operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11234505A JP2001029953A (en) | 1999-07-16 | 1999-07-16 | Filter type water purifier and its operation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001029953A true JP2001029953A (en) | 2001-02-06 |
Family
ID=16972089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11234505A Pending JP2001029953A (en) | 1999-07-16 | 1999-07-16 | Filter type water purifier and its operation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001029953A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007160157A (en) * | 2005-12-12 | 2007-06-28 | Hikita Kogyo Kk | Water treatment apparatus |
| CN102995913A (en) * | 2012-12-07 | 2013-03-27 | 深圳市胜义环保有限公司 | Process water regulating tank repair system and method |
| CN112793034A (en) * | 2021-01-18 | 2021-05-14 | 彭刚 | Prevent plastic granulator that plastic granules carbomorphism arouses jam |
-
1999
- 1999-07-16 JP JP11234505A patent/JP2001029953A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007160157A (en) * | 2005-12-12 | 2007-06-28 | Hikita Kogyo Kk | Water treatment apparatus |
| CN102995913A (en) * | 2012-12-07 | 2013-03-27 | 深圳市胜义环保有限公司 | Process water regulating tank repair system and method |
| CN102995913B (en) * | 2012-12-07 | 2016-05-11 | 深圳市胜义环保有限公司 | A kind of fresh water (FW) regulating reservoir repair system and restorative procedure |
| CN112793034A (en) * | 2021-01-18 | 2021-05-14 | 彭刚 | Prevent plastic granulator that plastic granules carbomorphism arouses jam |
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