JP3489723B2 - Cleaning device for water collecting nozzle of filtration machine - Google Patents
Cleaning device for water collecting nozzle of filtration machineInfo
- Publication number
- JP3489723B2 JP3489723B2 JP30152798A JP30152798A JP3489723B2 JP 3489723 B2 JP3489723 B2 JP 3489723B2 JP 30152798 A JP30152798 A JP 30152798A JP 30152798 A JP30152798 A JP 30152798A JP 3489723 B2 JP3489723 B2 JP 3489723B2
- Authority
- JP
- Japan
- Prior art keywords
- water collecting
- nozzle
- collecting nozzle
- water
- filter
- 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
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、浮上ろ材を用い
たろ過機における集水ノズルの洗浄装置の改良に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a cleaning device for a water collecting nozzle in a filter using a floating filter material.
【０００２】[0002]
【従来の技術】一般に、浮上ろ材を用いたろ過機では、
集水ノズルはろ過槽の天井部に設けてあり、ろ過運転時
にはろ材内に埋没した状態となっている。そして、この
集水ノズルは、リング状のウェッジワイヤーを積み重ね
た円筒状のもの等がよく知られている。（特公平２−２
２６８２号公報参照）2. Description of the Related Art Generally, in a filter using a floating filter medium,
The water collection nozzle is installed on the ceiling of the filtration tank and is buried in the filter medium during the filtration operation. As the water collecting nozzle, a cylindrical one in which ring-shaped wedge wires are stacked is well known. (Tokuhei 2-2
(See Japanese Patent No. 2682)
【０００３】[0003]
【発明が解決しようとする課題】上述のように浮上ろ材
を用いたろ過機においては、集水ノズルはろ材に埋没し
ており、これが目詰まりするとろ材の洗浄時にもこれを
洗浄できず、その再生に手数を要する。特にスライムの
発生し易い原液では早期に目詰まりして逆洗排水を繰り
返しろ過効率を悪くしている。In the filter using the floating filter medium as described above, the water collecting nozzle is buried in the filter medium, and if it is clogged, it cannot be washed even when washing the filter medium. It takes time to reproduce. In particular, undiluted solution, which is prone to slime, clogs early and repeats backwash drainage, resulting in poor filtration efficiency.
【０００４】[0004]
【課題を解決するための手段】この発明は、上述のよう
な課題を解決したものであって、集水ノズル内に噴霧ノ
ズルを設け、集水ノズルが目詰まりしたとき噴霧ノズル
によって集水ノズルを逆洗するようにしたものである。
すなわち、この発明の要旨とするところは、水よりも軽
量のろ材を用いたろ過機において、ろ材層内に設ける集
水ノズル内にその集水ノズルの内面に向けて噴霧ノズル
を設けたものである。また、ろ過槽内にはその圧力の検
知装置を設け、その検知装置と前記噴霧ノズルの作動装
置とを連動連結してろ過槽内の圧力が一定以上に昇圧す
ると噴霧ノズルが作動するようにしたものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a spray nozzle is provided in the water collecting nozzle, and when the water collecting nozzle is clogged, the water collecting nozzle is used. It was designed to be backwashed.
That is, the gist of the present invention is that in a filter using a filter medium lighter than water, a spray nozzle is provided in the water collecting nozzle provided in the filter layer toward the inner surface of the water collecting nozzle. is there. Further, a detection device for the pressure is provided in the filtration tank, and the detection device and the operation device for the spray nozzle are interlocked to operate the spray nozzle when the pressure in the filtration tank rises above a certain level. It is a thing.
【０００５】上記集水ノズル内に設ける噴霧ノズルが固
定式の場合には、集水ノズルの内面に向けて複数個設け
ておけば、集水ノズルの全面を洗浄することができ、可
動式の噴霧ノズルを用いる場合は、旋回あるいは回動す
るようにするものである。In the case where the spray nozzle provided in the water collecting nozzle is of a fixed type, if the plurality of spray nozzles are provided toward the inner surface of the water collecting nozzle, the entire surface of the water collecting nozzle can be washed, and the spray nozzle is movable. When the spray nozzle is used, it is swung or rotated.
【０００６】[0006]
【発明の実施の形態】この発明は、上述のように構成し
てあるので、ろ過運転中に集水ノズルが目詰まりする
と、ろ過槽内の圧力が上昇する。この圧力の上昇は圧力
スイッチによって検知され、噴霧ノズルを作動させるこ
とができる。すなわち、目詰まりした集水ノズルの内面
に対して高圧の噴霧を吹きつけて目詰まり物を除去し、
集水ノズルを再生することができるものである。尚、こ
の噴霧を吹きつける際にろ過槽内の水位を下げて集水ノ
ズルの周囲のろ材をさげておくと効率よく目詰まり物を
除去することができる。BEST MODE FOR CARRYING OUT THE INVENTION Since the present invention is configured as described above, if the water collecting nozzle is clogged during the filtration operation, the pressure in the filtration tank rises. This increase in pressure is detected by the pressure switch and the spray nozzle can be activated. That is, a high-pressure spray is blown to the inner surface of the clogged water collecting nozzle to remove the clogged material,
The water collecting nozzle can be regenerated. When spraying this spray, if the water level in the filtration tank is lowered and the filter medium around the water collecting nozzle is lowered, the clogging can be removed efficiently.
【０００７】上述のようなろ過運転の作動フローは、予
め制御盤に組み込んでおくことができ、従って集水ノズ
ルが目詰まりすると、自動的に逆洗してこれを再生して
全く無人運転が可能なるものである。なお、集水ノズル
内に設ける噴霧ノズルは固定式を用いるも可動式を用い
るも自由に選択できるものである。以下、図面に基づい
てこの発明を具体的に説明する。The operation flow of the filtration operation as described above can be incorporated in the control panel in advance. Therefore, when the water collecting nozzle is clogged, it is automatically backwashed to regenerate it and completely unattended operation is possible. It is possible. The spray nozzle provided in the water collecting nozzle may be of a fixed type or a movable type and can be freely selected. Hereinafter, the present invention will be specifically described with reference to the drawings.
【０００８】[0008]
【実施例】図１は、この発明の要部を構成する集水ノズ
ル部分の模式図であり、集水ノズル１の内部に噴霧ノズ
ル２が垂下してある。この噴霧ノズル２は集水ノズル１
の内面を均一に洗浄できるように、図１のものでは送水
管４に沿って昇降するとともに噴出口が四方に向けて設
けてある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic view of a water collecting nozzle portion constituting a main part of the present invention, in which a spray nozzle 2 hangs inside the water collecting nozzle 1. This spray nozzle 2 is a water collecting nozzle 1
In order to uniformly clean the inner surface of the nozzle, the one shown in FIG. 1 is provided with the nozzles ascending and descending along the water supply pipe 4 and directed in all directions.
【０００９】次に図２は、この発明に係るろ過機を備え
たろ過装置のフロー図面であり、図中符号３は、その天
井部に集水ノズル１を設けた密封式のろ過槽、５はろ過
槽３の底部に設けたろ材６の撹拌翼、５ａは撹拌翼５の
駆動用の撹拌モーターである。次に、符号７は原水槽、
８は原水のろ過ポンプであり、ろ過槽３の底部に形成し
たピット４ａに接続してある。また、符号１０は集水ノ
ズル１の洗浄水の供給管であり、電磁弁１１を介してそ
の先端は噴霧ノズル２に接続してある。符号１２は圧力
スイッチであり、電磁弁１１に接続してある。なお、符
号１３は処理水の取出管、１４はろ材および集水ノズル
の洗浄排水の排水管である。Next, FIG. 2 is a flow chart of a filtration device equipped with the filtration device according to the present invention. In the figure, reference numeral 3 is a sealed filtration tank having a water collecting nozzle 1 on its ceiling, Is a stirring blade of the filter medium 6 provided at the bottom of the filtration tank 3, and 5 a is a stirring motor for driving the stirring blade 5. Next, reference numeral 7 is a raw water tank,
Reference numeral 8 denotes a raw water filtration pump, which is connected to a pit 4a formed at the bottom of the filtration tank 3. Further, reference numeral 10 is a supply pipe for washing water of the water collecting nozzle 1, the tip of which is connected to the spray nozzle 2 via an electromagnetic valve 11. Reference numeral 12 is a pressure switch, which is connected to the solenoid valve 11. Reference numeral 13 is a treated water extraction pipe, and 14 is a drainage pipe for cleaning and draining the filter material and the water collecting nozzle.
【００１０】この発明に係る装置は、上述のように構成
してあり、原水槽７からろ過ポンプ８によってろ過槽３
に供給された原水は、ろ材６によって、夾雑物が捕捉さ
れ、清澄なろ液が集水ノズル１に集められて取出管１３
から系外に取り出すことができる。The apparatus according to the present invention is constructed as described above, and the raw water tank 7 to the filter tank 8 are used to filter the tank 3.
Contaminants are captured by the filter medium 6 from the raw water supplied to the raw water, and the clear filtrate is collected by the water collecting nozzle 1 and the extraction pipe 13
Can be taken out of the system.
【００１１】上述のようなろ過運転時に、従来の集水装
置では集水ノズル１のスクリーン面にろ液中の微細粒子
等が付着して集水ノズル１が早期に閉塞したのである
が、この発明では、集水ノズル１の閉塞が認められたと
きには、噴霧ノズル２を作動させることによって、集水
ノズル１のスクリーンに付着したスライムを除去して集
水ノズル１を洗浄再生することができる。During the filtration operation as described above, in the conventional water collecting device, fine particles in the filtrate adhered to the screen surface of the water collecting nozzle 1 and the water collecting nozzle 1 was clogged early. According to the invention, when clogging of the water collection nozzle 1 is recognized, the spray nozzle 2 is operated to remove slime adhering to the screen of the water collection nozzle 1 to wash and regenerate the water collection nozzle 1.
【００１２】すなわち、集水ノズル１が閉塞し始める
と、ろ過槽３内の圧力が上昇するので、この発明では、
この圧力上昇が圧力スイッチ１２によって検知され、そ
の信号が噴霧装置に伝達されて噴霧ノズル２から高圧の
噴霧が噴射して集水ノズル１を内面から洗浄することが
できるのである。この集水ノズル１を洗浄するに当たっ
ては、ろ過槽３内の水位を下げて集水ノズル１の外側部
のろ材６を降下させておくと洗浄が容易である。That is, when the water collecting nozzle 1 starts to be clogged, the pressure in the filtration tank 3 rises.
This increase in pressure is detected by the pressure switch 12, and the signal is transmitted to the spraying device, and high-pressure spray is sprayed from the spray nozzle 2 to clean the water collecting nozzle 1 from the inner surface. In cleaning the water collecting nozzle 1, it is easy to clean by lowering the water level in the filtration tank 3 and lowering the filter medium 6 on the outer side of the water collecting nozzle 1.
【００１３】また、上述の集水ノズル１の洗浄操作は、
圧力スイッチ１２と噴霧装置とを連動連結しておくこと
によって全く自動的に行われるもので、長時間の無人ろ
過運転をすることができるものである。図３は、噴霧ノ
ズル２による集水ノズル１の洗浄再生操作をタイムチャ
ートとして示すものであり、ろ過槽３内の圧力を圧力ス
イッチ１２で検知したのち、ろ過ポンプ８を停止し、次
いで撹拌翼５でろ材６を撹拌して噴霧ノズル２を作動さ
せて集水ノズル１を洗浄し、その汚水をろ材６の撹拌汚
水とともに排水弁１５を経て排水し、そして、捨て水の
後ろ過運転を再開することを示している。このタイムチ
ャートでも分かるように、発明に係る装置は、従来この
種ろ過機で洗浄が困難であった集水ノズル１を完全に洗
浄できるものである。なお、集水ノズル１が目詰まりす
る時期は、原水の濃度が高い場合には、１０日程度でス
ライムが発生して目詰まりするものであり、一方、ろ材
６の洗浄は、１日に数回以上も必要であり、集水ノズル
１はろ材６の洗浄の都度行う必要はないものである。然
しながら、ろ材６の洗浄時にはろ材６を撹拌し、また、
ろ過槽３内の水位を下げるので、同時に集水ノズル１を
洗浄するとろ過機の運転制御を容易にすることができ
る。The cleaning operation of the water collecting nozzle 1 described above is
The pressure switch 12 and the spraying device are interlocked and connected so that the operation is completely automatic, and the unattended filtration operation for a long time can be performed. FIG. 3 is a time chart showing the cleaning and regenerating operation of the water collection nozzle 1 by the spray nozzle 2, and after detecting the pressure in the filtration tank 3 with the pressure switch 12, the filtration pump 8 is stopped, and then the stirring blades. 5, the filter medium 6 is stirred, the spray nozzle 2 is operated to wash the water collecting nozzle 1, the sewage is drained together with the agitated sewage of the filter medium 6 through the drain valve 15, and the post-filtration operation of the discarded water is restarted. It shows that you do. As can be seen from this time chart, the device according to the present invention can completely clean the water collecting nozzle 1 which was conventionally difficult to clean with this type of filter. In addition, when the concentration of raw water is high, the time when the water collecting nozzle 1 is clogged is such that slime is generated in about 10 days and the water is clogged. The water collecting nozzle 1 does not have to be washed every time the filter medium 6 is washed. However, when cleaning the filter medium 6, the filter medium 6 is agitated,
Since the water level in the filtration tank 3 is lowered, the operation control of the filter can be facilitated by washing the water collecting nozzle 1 at the same time.
【００１４】[0014]
【発明の効果】以上の説明で明らかなように、この発明
は浮上ろ材を用いたろ過機において、従来洗浄再生が出
来なかった集水ノズルを完全に洗浄可能にしてろ過効率
を向上させ、然もその操作は完全に自動的に行われるも
のでろ過運転操作も大巾に省力化し得たものである。EFFECTS OF THE INVENTION As is clear from the above description, the present invention improves the filtration efficiency by completely cleaning the water collecting nozzle, which could not be conventionally washed and regenerated, in the filter using the floating filter. However, the operation is completely automatic, and the filtration operation can be greatly labor-saving.
【図１】この発明に係る集水ノズル部分の模式側面図で
ある。FIG. 1 is a schematic side view of a water collecting nozzle portion according to the present invention.
【図２】この発明に係るろ過機を備えたろ過フロー図で
ある。FIG. 2 is a filtration flow chart provided with the filter according to the present invention.
【図３】この発明に係る集水ノズルの洗浄操作のタイム
チャートである。FIG. 3 is a time chart of a washing operation of the water collecting nozzle according to the present invention.
１ 集水ノズル ２ 噴霧ノズル ３ ろ過槽 ６ ろ材 １２ 圧力スイッチ 1 Water collecting nozzle 2 spray nozzles 3 filtration tanks 6 filter media 12 Pressure switch
Claims (4)
機において、ろ材層中に設ける集水ノズル１内に、その
集水ノズル１の内面に向けて噴霧ノズル２を設けたこと
を特長とするろ過機の集水ノズルの洗浄装置。1. A hermetic filter using a filter medium 6 which is lighter than water, wherein a spray nozzle 2 is provided in the water collecting nozzle 1 provided in the filter medium layer toward the inner surface of the water collecting nozzle 1. A cleaning device for the water collecting nozzle of the filter.
ッチ１２と連動連結しており、ろ過槽３内の圧力が一定
以上になったとき、噴霧ノズル２が作動するようにして
ある請求項１記載のろ過機の集水ノズルの洗浄装置。2. The spray nozzle 2 operating device is interlocked with a pressure switch 12 so that the spray nozzle 2 is activated when the pressure in the filtration tank 3 exceeds a certain level. Cleaning device for collecting water nozzle of the described filter.
２が固定してあり、その噴出口が四方に向けて設けてあ
る請求項１記載のろ過機の集水ノズルの洗浄装置。3. The washing device for a water collecting nozzle of a filter according to claim 1, wherein a spray nozzle 2 provided in the water collecting nozzle 1 is fixed, and its ejection ports are provided in four directions.
２が集水ノズル１の内面に対して可動するようにしてあ
り、その噴出口の向きが集水ノズル１の内面に沿って変
わるようにしてある請求項１記載のろ過機の集水ノズル
の洗浄装置。4. A spray nozzle 2 provided in the water collecting nozzle 1 is movable with respect to the inner surface of the water collecting nozzle 1, and the direction of the jet port thereof changes along the inner surface of the water collecting nozzle 1. The cleaning device for the water collecting nozzle of the filter according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30152798A JP3489723B2 (en) | 1998-10-23 | 1998-10-23 | Cleaning device for water collecting nozzle of filtration machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30152798A JP3489723B2 (en) | 1998-10-23 | 1998-10-23 | Cleaning device for water collecting nozzle of filtration machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000126520A JP2000126520A (en) | 2000-05-09 |
| JP3489723B2 true JP3489723B2 (en) | 2004-01-26 |
Family
ID=17898014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30152798A Expired - Fee Related JP3489723B2 (en) | 1998-10-23 | 1998-10-23 | Cleaning device for water collecting nozzle of filtration machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3489723B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101237412B1 (en) * | 2012-05-11 | 2013-02-27 | 주식회사 유니온환경 | Filter washing device in a upward-flowing purification system |
| CN108317009A (en) * | 2018-01-25 | 2018-07-24 | 北京航天发射技术研究所 | A kind of self-cleaning fuel tank and its cleaning method |
-
1998
- 1998-10-23 JP JP30152798A patent/JP3489723B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000126520A (en) | 2000-05-09 |
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