JP3351459B2 - Wastewater circulation pump - Google Patents
Wastewater circulation pumpInfo
- Publication number
- JP3351459B2 JP3351459B2 JP14566297A JP14566297A JP3351459B2 JP 3351459 B2 JP3351459 B2 JP 3351459B2 JP 14566297 A JP14566297 A JP 14566297A JP 14566297 A JP14566297 A JP 14566297A JP 3351459 B2 JP3351459 B2 JP 3351459B2
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- pump
- casing
- pump casing
- main shaft
- 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 - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、閉塞性水域での
窒素やリンによる富栄養化を防止するために使用する立
軸ポンプに関し、特に、活性汚泥処理法における流入処
理水に活性汚泥を含む処理水の一部を返送するための汚
水の循環ポンプに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical shaft pump used for preventing eutrophication by nitrogen or phosphorus in a closed water area, and more particularly, to a treatment in which activated sludge is contained in inflowing treated water in an activated sludge treatment method. The present invention relates to a sewage circulation pump for returning a part of water.
【０００２】[0002]
【従来の技術】湖沼周辺等、閉鎖性水域では窒素やリン
による放流水域の富栄養化を防止するため高度な下水処
理が要求されるようになってきている。また、高度処理
水のニーズは防災、渇水対策、アメニティ等高まりつつ
ある。そこで、現在、高度処理法として、図４に示すよ
うな、嫌気−好気活性汚泥法による処理が行われてい
る。そして、処理水は活性汚泥とともに嫌気槽、好気槽
を経てＢＯＤ、リンを除去するが、連続して処理を行う
ため流入処理水に活性汚泥を含む処理水の一部を返送し
ている。そして従来、汚水処理用の水路に阻流壁を形成
し、上流側から下流側に汚水と活性汚泥との混合液を流
すために立軸ポンプを設けた汚水の曝気装置は、例えば
特公平２−３２９５７号公報に記載してあるように公知
である。2. Description of the Related Art In closed water areas such as around lakes and marshes, advanced sewage treatment is required to prevent eutrophication of discharged water areas by nitrogen and phosphorus. In addition, needs for advanced treated water are increasing, such as disaster prevention, drought countermeasures, and amenities. Therefore, as an advanced treatment method, treatment by the anaerobic-aerobic activated sludge method as shown in FIG. 4 is currently performed. The treated water passes through an anaerobic tank and an aerobic tank together with the activated sludge to remove BOD and phosphorus. However, a part of the treated water containing the activated sludge is returned to the inflowing treated water for continuous treatment. Conventionally, a wastewater aeration apparatus in which a baffle wall is formed in a water channel for sewage treatment and a vertical axis pump is provided to flow a mixed solution of sewage and activated sludge from the upstream side to the downstream side is disclosed in It is known as described in JP 32957.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
曝気装置は、汚水と活性汚泥との混合液に効率的に酸素
の溶解が行われるものであるが、汚物による羽根車の摩
耗や腐食、あるいは繊維物の羽根車への巻き付き等のた
めに、汚水処理用の水路から立軸ポンプを定期的に引き
揚げてポンプを分解し、点検修理することが困難であっ
た。この発明は、点検修理が容易な汚水の循環ポンプを
提供することを目的とする。However, the above-described aeration apparatus is capable of efficiently dissolving oxygen in a mixed liquid of sewage and activated sludge. Due to the winding of the fiber material around the impeller and the like, it was difficult to periodically lift the vertical shaft pump from the sewage treatment water channel, disassemble the pump, and perform inspection and repair. An object of the present invention is to provide a circulating pump for sewage water that can be easily inspected and repaired.
【０００４】[0004]
【課題を解決するための手段】羽根車を配設したポンプ
ケーシングと、ポンプケーシングに連設した吐出ケーシ
ングとを同内径の円筒形状に構成し、吐出ケーシングの
上部に配設した電動機から主軸を垂下させ、この主軸の
下端に羽根車を止着すると共に、電動機の架台に連結し
た主軸の保護管に案内羽根を止着し、電動機の架台を吐
出ケーシングから取り外せば、羽根車と案内羽根を電動
機と一緒にポンプケーシングから抜き出せるようにした
ものである。そして、好ましくは、案内羽根の先端外周
部にシールリングを連結し、このシールリングをポンプ
ケーシングの内周面に接近させて設け、案内羽根とポン
プケーシングとの間での異物の噛み込みを少なくしたも
のである。更に上記羽根車の先端外周部には環状筒を連
結し、この環状筒をポンプケーシングの内周面に接近さ
せれば、羽根車による微生物担体の破壊が防止できるも
のである。A pump is disposed an impeller casing Means for Solving the Problems], and a discharge casing provided continuously to the pump casing constructed into a cylindrical shape having the same inside diameter, the electric motor is disposed above the discharge casing main shaft And the impeller is fixed to the lower end of the main shaft, the guide blade is fixed to the protection tube of the main shaft connected to the mount of the electric motor, and the mount of the electric motor is removed from the discharge casing. Can be extracted from the pump casing together with the electric motor. Preferably, a seal ring is connected to the outer periphery of the tip of the guide vane, and the seal ring is provided close to the inner peripheral surface of the pump casing, so that foreign matter between the guide vane and the pump casing is reduced. It was done. Further, an annular cylinder is connected to the outer periphery of the tip end of the impeller, and if the annular cylinder is brought close to the inner peripheral surface of the pump casing, the destruction of the microorganism carrier by the impeller can be prevented.
【０００５】[0005]
【発明の実施の形態】高度汚水処理用の吸水槽等に設置
したこの発明の汚水の循環ポンプでは、吐出ケーシング
から電動機の架台を取り外せば、羽根車と案内羽根は電
動機と一緒にポンプケーシングから抜き出すことができ
る。そして、羽根車や案内羽根等の付着汚物の清掃と摩
耗部材の交換を簡単に行うことができる。また、羽根車
と案内羽根に環状筒とシールリングを設けておけば、羽
根車及び案内羽根とポンプケーシングとの間に異物の噛
み込みがなくなり、活性汚泥の返送時に、微生物担体の
破壊が防止できるものである。BEST MODE FOR CARRYING OUT THE INVENTION In the sewage circulation pump of the present invention installed in a water absorption tank or the like for advanced sewage treatment, if the motor base is removed from the discharge casing, the impeller and the guide blades are removed from the pump casing together with the motor. Can be extracted. Then, it is possible to easily perform the cleaning of the attached dirt such as the impeller and the guide blade and the replacement of the wear member. In addition, if an annular cylinder and a seal ring are provided on the impeller and the guide blade, foreign matter is not caught between the impeller and the guide blade and the pump casing, and the destruction of the microorganism carrier is prevented when returning the activated sludge. You can do it.
【０００６】[0006]
【実施例】この発明を図面に基づき詳述すると、先ず、
図１において、符号１は円筒形状に構成したポンプケー
シング、符号２はポンプケーシング１の上部に連設し、
ポンプケーシング１と同内径とした吐出ケーシングであ
って、その上部側壁に吐出口３が設けてある。符号４は
ポンプケーシング１の下部に連結した長尺の吸込管であ
って、吸込管４の下端に吸込ケーシング５が設けてあ
り、深層水の吸込みができるようにしてある。符号６は
電動機であって、吐出ケーシング２の水面上の上部に着
脱自在に支架した架台７に設置してあり、電動機６の主
軸８が吐出ケーシング２内を垂下させ、その下端部に設
けたハブ９に羽根車１０が止着してあり、ポンプケーシ
ング１内に配設されている。電動機６の主軸８の周部に
は保護管１１が配設され、保護管１１の上端部は架台７
に連結し、保護管１１の下端部に設けたハブ１２に案内
羽根１３が止着してあり、羽根車１０の上部近傍に配設
してある。そして電動機６の架台７を吐出ケーシング２
から取り外せば、図２に示すように、電動機６と一体的
に羽根車１０と案内羽根１３とを抜き出すことができる
ようになっている。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
In FIG. 1, reference numeral 1 denotes a pump casing having a cylindrical shape, and reference numeral 2 denotes a pump casing 1 provided at an upper portion thereof.
The pump casing 1 a discharge casing which is the same in diameter, the discharge port 3 is provided on its upper side wall. Reference numeral 4 denotes a long suction pipe connected to a lower portion of the pump casing 1, and a suction casing 5 is provided at a lower end of the suction pipe 4 so that deep water can be sucked. Reference numeral 6 denotes an electric motor, which is installed on a gantry 7 which is detachably supported above the water surface of the discharge casing 2, and a main shaft 8 of the electric motor 6 hangs down inside the discharge casing 2 and is provided at a lower end thereof. An impeller 10 is fixed to the hub 9 and is disposed inside the pump casing 1. A protective tube 11 is disposed around the main shaft 8 of the electric motor 6, and the upper end of the protective tube 11 is
The guide vanes 13 are fixed to a hub 12 provided at the lower end of the protective tube 11, and are disposed near the upper part of the impeller 10. Then, the base 7 of the electric motor 6 is connected to the discharge casing 2.
By removing from, so that it is possible to extract a as shown in FIG. 2, the electric motive 6 integrally with the impeller 10 and the guide vanes 13.
【０００７】案内羽根１３の先端外周部には図２及び図
３に示すように環状のシールリング１４が連結してあ
り、このシールリング１４がポンプケーシング１の内周
面に接近させて設けてあり、汚水中の異物がポンプケー
シング１と案内羽根１３の間に噛み込まないようにして
ある。また、この発明の実施例においては、図３に示す
ように羽根車１０の先端外周部に環状筒１５を連結し
て、この環状筒１５をポンプケーシング１の内周面に接
近させておけば、返送する活性汚泥中の微生物担体が破
壊されないようにすることができる。As shown in FIGS. 2 and 3, an annular seal ring 14 is connected to the outer peripheral portion of the leading end of the guide blade 13, and this seal ring 14 is provided close to the inner peripheral surface of the pump casing 1. In addition, foreign matter in the sewage is prevented from being caught between the pump casing 1 and the guide blade 13. Further, in the embodiment of the present invention, as shown in FIG. 3, an annular cylinder 15 is connected to the outer peripheral portion of the tip end of the impeller 10, and the annular cylinder 15 is brought close to the inner peripheral surface of the pump casing 1. The microbial carrier in the returned activated sludge can be prevented from being destroyed.
【０００８】[0008]
【発明の効果】この発明は上記のように構成してあり、
循環ポンプの主要部が上部に引き揚げられる構造のため
メンテナンス性に優れているものである。即ち、従来装
置にあっては、ポンプの取り外し、点検修理が困難であ
ったものであるが、この発明にあっては、駆動機の主軸
と主軸の保護管にそれぞれ羽根車と案内羽根が止着さ
れ、駆動機の架台を吐出ケーシングから取り外せば羽根
車と案内羽根は水面上の駆動機と一体的に抜き出しがで
きるので、着脱が容易であり、付着している汚泥物の除
去と部品の交換が簡単に行なえるものである。案内羽根
の外周先端にシールリングを設けておけば、案内羽根と
ポンプケーシングの間に異物の噛み込みがなく、また、
羽根車の外周先端に環状筒を設けておけば、活性汚泥中
の微生物担体の破壊が防止できる。The present invention is configured as described above,
Because the main part of the circulating pump can be pulled up, it is easy to maintain. That is, in the conventional apparatus, it is difficult to remove and check and repair the pump. However, in the present invention, the impeller and the guide blade are stopped on the main shaft of the drive unit and the protection tube of the main shaft, respectively. If the gantry of the drive unit is removed from the discharge casing, the impeller and guide blades can be taken out integrally with the drive unit on the water surface, so it is easy to attach and remove, remove sludge adhering and remove parts. Exchange is easy. If a seal ring is provided at the outer peripheral end of the guide vane, there is no foreign matter biting between the guide vane and the pump casing, and
If an annular cylinder is provided at the outer peripheral end of the impeller, destruction of the microorganism carrier in the activated sludge can be prevented.
【図１】この発明に係る汚水の循環ポンプの縦断面図で
ある。FIG. 1 is a vertical sectional view of a sewage circulation pump according to the present invention.
【図２】羽根車をポンプケーシングから抜き出した循環
ポンプの主要部の一部縦断側面図である。FIG. 2 is a partial vertical sectional side view of a main part of a circulation pump in which an impeller is extracted from a pump casing.
【図３】羽根車をポンプケーシングに配設した循環ポン
プの他の実施例の一部縦断側面図である。FIG. 3 is a partial longitudinal side view of another embodiment of a circulation pump in which an impeller is provided in a pump casing.
【図４】活性汚泥処理方法に使用する循環ポンプの使用
概略図である。FIG. 4 is a schematic view of the use of a circulation pump used in the activated sludge treatment method.
１ ポンプケーシング ２ 吐出ケーシング ６ 電動機 ７ 架台 ８ 主軸 １０ 羽根車 １１ 保護管１２ ハブ １３ 案内羽根 １４ シールリング １５ 環状筒DESCRIPTION OF SYMBOLS 1 Pump casing 2 Discharge casing 6 Electric motor 7 Stand 8 Main shaft 10 Impeller 11 Protective tube 12 Hub 13 Guide blade 14 Seal ring 15 Ring cylinder
Claims (2)
１と、ポンプケーシング１に連設した吐出ケーシング２
とを同内径の円筒形状に構成し、吐出ケーシング２の上
部に配設した電動機６から主軸８を垂下させ、この主軸
８の下端に羽根車１０を止着すると共に、電動機６の架
台７に連結した主軸８の保護管１１の下端部に設けたハ
ブ１２に案内羽根１３を止着し、該案内羽根１３の先端
外周部にシールリング１４を連結し、このシールリング
１４をポンプケーシング１の内周面に接近させたことを
特徴とする汚水の循環ポンプ。A pump casing provided with an impeller, and a discharge casing connected to the pump casing.
Preparative configured into a cylindrical shape having the same inside diameter, the electric motor 6 which is disposed above the discharge casing 2 is suspended spindle 8, thereby fastening the impeller 10 to the lower end of the main shaft 8, pedestal 7 of the motor 6 C provided at the lower end of the protective tube 11 of the main shaft 8 connected to
The guide blade 13 is fixed to the blade 12, and the tip of the guide blade 13
A seal ring 14 is connected to the outer peripheral portion, and this seal ring 14
14 approached the inner peripheral surface of the pump casing 1.
Characteristic sewage circulation pump.
内羽根１３を羽根車１０の上部近傍に配設し、該羽根車
１０の先端外周部に環状筒１５を連結し、この環状筒１
５をポンプケーシング１の内周面に接近させたことを特
徴とする請求項１に記載の汚水の循環ポンプ。 2. The above-mentioned solution in a pump casing 1.
The inner impeller 13 is disposed near the upper part of the impeller 10,
An annular cylinder 15 is connected to the outer periphery of the tip of the annular cylinder 10.
5 is brought closer to the inner peripheral surface of the pump casing 1.
The circulating pump of sewage according to claim 1, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14566297A JP3351459B2 (en) | 1997-06-04 | 1997-06-04 | Wastewater circulation pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14566297A JP3351459B2 (en) | 1997-06-04 | 1997-06-04 | Wastewater circulation pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10339291A JPH10339291A (en) | 1998-12-22 |
| JP3351459B2 true JP3351459B2 (en) | 2002-11-25 |
Family
ID=15390199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14566297A Expired - Lifetime JP3351459B2 (en) | 1997-06-04 | 1997-06-04 | Wastewater circulation pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3351459B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002078613A (en) * | 2000-09-05 | 2002-03-19 | Kamusa Shoji:Kk | Hot water circulating device of vessel for boiling |
| JP4803489B2 (en) * | 2006-07-26 | 2011-10-26 | 株式会社石垣 | Siphon type turbine power generation method |
| KR101246928B1 (en) * | 2012-09-04 | 2013-04-02 | (주)그린텍 | Pump assembly |
| CN103062029A (en) * | 2012-12-27 | 2013-04-24 | 鞍钢集团自动化公司 | Control method for water supply pump |
| CN110131175A (en) * | 2019-05-24 | 2019-08-16 | 高邮环流泵业有限公司 | A kind of axial-flow pump of band filtering cleaning function |
-
1997
- 1997-06-04 JP JP14566297A patent/JP3351459B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10339291A (en) | 1998-12-22 |
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