JP3275409B2 - Water purification equipment - Google Patents
Water purification equipmentInfo
- Publication number
- JP3275409B2 JP3275409B2 JP35657992A JP35657992A JP3275409B2 JP 3275409 B2 JP3275409 B2 JP 3275409B2 JP 35657992 A JP35657992 A JP 35657992A JP 35657992 A JP35657992 A JP 35657992A JP 3275409 B2 JP3275409 B2 JP 3275409B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- pump
- membrane
- membrane module
- pipe
- 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.)
- Expired - Fee Related
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、上水道（市水）中に
含まれている硬度成分や、溶存有機物をＲＯ膜（逆浸透
膜）や、ルーズＲＯ膜を備えた膜モジュールによって除
去し、飲用水栓に供給する浄水処理装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention removes a hardness component and dissolved organic substances contained in water supply (city water) by using a RO module (reverse osmosis membrane) or a membrane module having a loose RO membrane. The present invention relates to a water purification apparatus for supplying a drinking faucet.
【０００２】[0002]
【従来の技術】ＲＯ膜や、ルーズＲＯ膜を備えた膜モジ
ュールを使用し、間欠的なデッドエンド濾過方式で飲用
水栓に浄水を給水する図２の浄水処理装置は従来から公
知である。この従来装置は、上水道の主管１０から分岐
した支管１１を膜モジュール２０の１次水入口側２１に
接続し、該モジュールの１次水（濃縮水）出口側２２に
手洗用、トイレ用などの給水栓２４への配管２３を接続
し、透過水出口側２５に飲用水栓２７への貯溜タンク２
８を有する飲用水配管２６を接続する。これにより膜２
０´を透過した透過水が飲用水栓２７に供給され、膜を
透過しなかった濃縮水が給水栓２４に供給され、主管１
０から分岐して支管１１に流入する上水の回収率は１０
０％になる。又、給水栓２４を開くと、給水栓に向かっ
て流れる膜モジュール内の１次側の濃縮水の流れが膜２
０´が除去して分離した膜面に付着する物質（汚れ）
を、膜から剥離するので、膜モジュールの膜は短期間の
使用で濾過速度を低下させることがない。2. Description of the Related Art The water purification apparatus shown in FIG. 2 which uses a RO module or a membrane module having a loose RO membrane and supplies purified water to a drinking faucet by an intermittent dead-end filtration method is conventionally known. In this conventional apparatus, a branch pipe 11 branched from a main pipe 10 of a water supply is connected to a primary water inlet side 21 of a membrane module 20 and a primary water (concentrated water) outlet side 22 of the module is used for hand washing, toilet, etc. The pipe 23 to the water tap 24 is connected, and the storage tank 2 to the drinking water tap 27 is connected to the permeated water outlet side 25.
8 is connected. Thus, the film 2
0 ′ is supplied to the drinking faucet 27, concentrated water that has not passed through the membrane is supplied to the water faucet 24, and the main pipe 1
The recovery rate of clean water flowing from branch 0 to branch pipe 11 is 10
0%. When the water tap 24 is opened, the flow of the concentrated water on the primary side in the membrane module flowing toward the water tap is changed to the membrane 2.
Substance (dirt) adhering to the membrane surface separated and removed by 0 '
Is separated from the membrane, so that the membrane of the membrane module does not reduce the filtration rate in short-term use.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記従来装置
では、給水栓２４を開いて使用する頻度が多くなると、
圧力の低下により透過水の濾過速度が低下し、飲用水洗
２７への透過水の供給に支障が生じる。更に、給水栓２
４が閉のときに膜による濾過が行われるため、給水栓を
開いた使用時に、膜面に付着した汚れが剥離し、一時的
に手洗水に混ざって排出され、手洗水を汚染する。However, in the above-mentioned conventional apparatus, when the water tap 24 is opened and used frequently,
Due to the decrease in the pressure, the filtration rate of the permeated water decreases, and the supply of the permeated water to the drinking water washing 27 is hindered. In addition, hydrant 2
Since the filtration by the membrane is performed when 4 is closed, when the water tap is opened, the dirt adhering to the membrane surface peels off and is temporarily mixed with the hand washing water and discharged, thereby contaminating the hand washing water.
【０００４】[0004]
【課題を解決するための手段】本発明は、上述した問題
点を生じることなく、上水の回収率を１００％に保つた
めに開発されたのであって、上水道の主管から分岐した
支管を給水栓に接続すると共に、上記支管にバイパス管
を並列に接続し、このバイパス管に循環ポンプと膜モジ
ュールを設け、前記膜モジュールの透過水を飲用水栓に
供給するようにしたことを特徴とする。SUMMARY OF THE INVENTION The present invention has been developed to maintain the recovery rate of water supply at 100% without causing the above-mentioned problems, and is intended to supply a branch pipe branched from a main pipe of water supply. Connected to a tap, a bypass pipe is connected to the branch pipe in parallel, a circulating pump and a membrane module are provided in the bypass pipe, and permeated water of the membrane module is supplied to a drinking faucet. .
【０００５】[0005]
【実施例】図１は本発明の一実施例を示し、図２の従来
装置と同じ構成要素には同じ符号を付してある。本発明
の上水処理装置では、上水道の主管１０から分岐した支
管１１を給水栓２４に接続する。この支管１１には並列
にバイパス管３０を接続し、このバイパス管３０にポン
プ３１と、膜モジュール２０とを設ける。ポンプ３１は
バイパス管３０の上流側に接続し、膜モジュール２０は
１次水入口側２１をポンプ３１に向けて、１次水出口側
２２をバイパス管３０の下流側に夫々接続する。そし
て、膜モジュールの透過水出口側２５に飲用水栓２７に
至る飲用水配管２６を接続し、該配管２６の上流側に貯
溜タンク２８、下流側に送水ポンプ３２を設ける。FIG. 1 shows an embodiment of the present invention, in which the same components as those of the conventional apparatus of FIG. 2 are denoted by the same reference numerals. In the water treatment apparatus of the present invention, the branch pipe 11 branched from the water main pipe 10 is connected to the water tap 24. A bypass pipe 30 is connected to the branch pipe 11 in parallel, and a pump 31 and a membrane module 20 are provided in the bypass pipe 30. The pump 31 is connected to the upstream side of the bypass pipe 30, and the membrane module 20 connects the primary water inlet side 21 to the pump 31 and connects the primary water outlet side 22 to the downstream side of the bypass pipe 30. Then, a drinking water pipe 26 leading to a drinking faucet 27 is connected to the permeated water outlet side 25 of the membrane module, and a storage tank 28 is provided upstream of the pipe 26 and a water feed pump 32 is provided downstream.
【０００６】この実施例の浄水処理装置は、多階集合住
宅（マンション）用であるため、支管１１の上流に受水
槽３３、供給ポンプ３４を接続してある。供給ポンプ３
４は、各階の給水栓２４が開かれると運転を開始し、受
水槽３３内の水を開かれた給水栓に供給する。そして、
受水槽３３には、ボールタップにより槽内の水位が所定
水位まで下がると水が補給され、水位が回復すると補給
が止まる。Since the water purification apparatus of this embodiment is for a multi-storey apartment house (apartment), a water receiving tank 33 and a supply pump 34 are connected upstream of the branch pipe 11. Supply pump 3
4 starts operation when the hydrant 24 of each floor is opened, and supplies the water in the water receiving tank 33 to the opened hydrant. And
Water is supplied to the water receiving tank 33 when the water level in the tank falls to a predetermined water level by a ball tap, and the water supply stops when the water level recovers.
【０００７】ポンプ３１は、透過水が貯溜される貯溜タ
ンク２８の水位の低下、回復でボールタップを介して発
停を制御される。送水ポンプ３２は飲用水栓２７が開か
れる都度、発停し、貯溜タンク中の透過水を開かれた飲
用水栓に供給する。The pump 31 is controlled to start and stop via a ball tap when the water level of the storage tank 28 in which the permeated water is stored drops and recovers. The water pump 32 starts and stops each time the drinking faucet 27 is opened, and supplies the permeated water in the storage tank to the opened drinking faucet.
【０００８】膜モジュールによる膜濾過は、貯溜タンク
２８内の低下した水位を回復するためのポンプ３１の運
転によって行われ、透過水が貯溜タンク２８に補給され
る。このポンプ３１の運転中に、給水栓が開かれ、供給
ポンプ３４の運転が開始すると、膜モジュールの膜２０
´にはポンプ３１の圧力と、供給ポンプの圧力が加算し
て加わるため高濾過速度が得られ、貯溜タンク２８への
透過水の流量は大になる。[0008] Membrane filtration by the membrane module is performed by operating a pump 31 for restoring the lowered water level in the storage tank 28, and permeated water is supplied to the storage tank 28. During the operation of the pump 31, when the water tap is opened and the operation of the supply pump 34 starts, the membrane 20 of the membrane module is started.
Since the pressure of the pump 31 and the pressure of the supply pump are added to ', a high filtration rate is obtained, and the flow rate of the permeated water to the storage tank 28 is increased.
【０００９】給水栓の全部が閉の状態であっても、貯溜
タンク２８に透過水を補給するためポンプ３１が運転し
ているときは膜面に流速が与えられるため、膜面への汚
れの付着が防止され、長期間にわたり高い濾過速度を維
持できる。そして、飲用水栓２７が開になると、送水ポ
ンプ３２が運転を開始し、貯溜タンク２８内の透過水を
支障なく飲用水栓に給水する。又、ポンプ３１の運転停
止時には膜モジュールは濾過を休止するため膜面での過
剰な濃縮は生じない。Even when all of the water taps are closed, when the pump 31 is operating to supply permeated water to the storage tank 28, a flow velocity is given to the membrane surface, so that contamination on the membrane surface is prevented. Adhesion is prevented and a high filtration rate can be maintained for a long period of time. Then, when the drinking faucet 27 is opened, the water pump 32 starts operating, and supplies the permeated water in the storage tank 28 to the drinking faucet without any trouble. Further, when the operation of the pump 31 is stopped, the membrane module stops the filtration, so that excessive concentration on the membrane surface does not occur.
【００１０】給水栓が開かれると、前述したように供給
ポンプ３４は受水槽内の水を給水栓２４に供給する。ポ
ンプの循環流の効果により膜面には過剰な汚れがないた
め、膜モジュールの内部の膜面に流速が生じても、汚れ
が手洗水を汚染することがない。When the water tap is opened, the supply pump 34 supplies the water in the water receiving tank to the water tap 24 as described above. Since there is no excessive dirt on the membrane surface due to the effect of the circulating flow of the pump, the dirt does not contaminate the hand washing water even if a flow velocity occurs on the membrane surface inside the membrane module.
【００１１】図示の実施例は、前述したように多階集合
住宅用であるため、支管１１の上流に受水槽３３、供給
ポンプ３４を接続したが、戸建て住宅や、その住宅群な
ど支管１１から圧力水を取水できる場合は受水槽、供給
ポンプは省略することができる。In the illustrated embodiment, a water receiving tank 33 and a supply pump 34 are connected upstream of the branch pipe 11 because it is for a multi-storey apartment house as described above. If pressure water can be collected, the water receiving tank and supply pump can be omitted.
【００１２】[0012]
【発明の効果】以上で明らかなように本発明では上水道
の主管から分岐して給水栓に至る支管にバイパス管を並
列に接続し、このバイパス管にポンプと膜モジュールを
設け、膜モジュールの透過水を飲用水栓に供給するよう
にし、ポンプの運転中にだけ膜モジュールに膜濾過を行
わせるようにしたため、膜面の汚れで手洗水を一時的に
汚染することなく、上水を１００％回収できる。そし
て、ポンプを膜濾過操作と連動させることにより造水コ
ストも低減する。As is apparent from the above, according to the present invention, a bypass pipe is connected in parallel to a branch pipe branching from a main pipe of a water supply system to a water faucet, and a pump and a membrane module are provided in the bypass pipe, so that the permeability of the membrane module is improved. Water is supplied to the drinking faucet, and membrane filtration is performed on the membrane module only during operation of the pump. Can be collected. And, by linking the pump with the membrane filtration operation, the fresh water production cost is also reduced.
【図１】本発明の浄水処理装置の一実施例のフローシー
トである。FIG. 1 is a flow sheet of one embodiment of the water purification treatment apparatus of the present invention.
【図２】従来の間欠的なデッドエンド濾過方式のフロー
シートである。FIG. 2 is a conventional intermittent dead-end filtration type flow sheet.
１０ 上水道の主管 １１ 支管 ２０ 膜モジュール ２０´ 膜 ２４ 給水栓 ２７ 飲用水栓 ３０ バイパス管 ３１ ポンプ DESCRIPTION OF SYMBOLS 10 Main pipe of waterworks 11 Branch pipe 20 Membrane module 20 'Membrane 24 Water tap 27 Drinking tap 30 Bypass pipe 31 Pump
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) C02F 1/44 B01D 61/08 E03B 7/07 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) C02F 1/44 B01D 61/08 E03B 7/07
Claims (1)
に接続すると共に、上記支管にバイパス管を並列に接続
し、このバイパス管にポンプと膜モジュールを設け、前
記膜モジュールの透過水を飲用水栓に供給するようにし
たことを特徴とする浄水処理装置。1. A branch pipe branched from a main pipe of a water supply system is connected to a water tap, a bypass pipe is connected in parallel to the branch pipe, a pump and a membrane module are provided in the bypass pipe, and the permeated water of the membrane module is drunk. A water purification apparatus characterized in that it is supplied to a faucet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35657992A JP3275409B2 (en) | 1992-12-22 | 1992-12-22 | Water purification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35657992A JP3275409B2 (en) | 1992-12-22 | 1992-12-22 | Water purification equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06182339A JPH06182339A (en) | 1994-07-05 |
| JP3275409B2 true JP3275409B2 (en) | 2002-04-15 |
Family
ID=18449735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35657992A Expired - Fee Related JP3275409B2 (en) | 1992-12-22 | 1992-12-22 | Water purification equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3275409B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003071442A (en) * | 2001-08-31 | 2003-03-11 | Mitsubishi Rayon Co Ltd | Water supply system and water supply method |
| JP5082661B2 (en) * | 2007-08-06 | 2012-11-28 | 栗田工業株式会社 | Water treatment system |
| JP5339702B2 (en) * | 2007-09-19 | 2013-11-13 | 株式会社日立製作所 | Two-way water supply system using membrane |
-
1992
- 1992-12-22 JP JP35657992A patent/JP3275409B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06182339A (en) | 1994-07-05 |
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