JP2003034977A - Method of starting and stopping agitation apparatus and manhole pump in manhole pump station - Google Patents
Method of starting and stopping agitation apparatus and manhole pump in manhole pump stationInfo
- Publication number
- JP2003034977A JP2003034977A JP2001224390A JP2001224390A JP2003034977A JP 2003034977 A JP2003034977 A JP 2003034977A JP 2001224390 A JP2001224390 A JP 2001224390A JP 2001224390 A JP2001224390 A JP 2001224390A JP 2003034977 A JP2003034977 A JP 2003034977A
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- pump
- manhole pump
- water level
- starting
- 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
- Sewage (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、マンホールポンプ
と撹拌装置とを設置したマンホールポンプ機場の撹拌装
置とマンホールポンプの起動、停止方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stirring device for a manhole pump station equipped with a manhole pump and a stirring device, and a method for starting and stopping the manhole pump.
【０００２】[0002]
【従来の技術】従来、下水道においては、管路の途中に
マンホールポンプ機場を設け、上流側管路から流入する
下水を一時マンホールに貯留し、貯留量が所定量（ポン
プ起動水位）に達したことを水位計（図示せず）等で検
出すると、マンホールに設置したマンホールポンプ（水
中モータポンプ）を駆動することにより順次下流側管路
に送水するようになっている。なお、マンホールポンプ
は水位が所定値（ポンプ停止水位）以下になると運転を
停止する。2. Description of the Related Art Conventionally, in sewerage, a manhole pumping station was provided in the middle of a pipeline to temporarily store the sewage flowing in from an upstream pipeline in a manhole, and the storage amount reached a predetermined amount (pump start water level). When this is detected by a water level gauge (not shown) or the like, the manhole pump (submersible motor pump) installed in the manhole is driven to successively send water to the downstream side pipeline. The manhole pump stops operating when the water level falls below a predetermined value (pump stop water level).
【０００３】前記マンホールポンプ機場においては、前
述したことから明らかなように、マンホールポンプは間
欠運転するため、マンホールポンプの停止中に、マンホ
ール内の下水表面でスカムの発生や成長、マンホール内
の壁面や配管、揚水管、マンホールポンプのモータ部、
水位計へのスカム等の付着や生長、土砂、ヘドロのマン
ホール底部への沈澱、堆積が生じる。At the manhole pump station, as is clear from the above, the manhole pump operates intermittently, and therefore, while the manhole pump is stopped, the generation and growth of scum on the sewage surface in the manhole and the wall surface in the manhole. , Piping, pumping pipe, motor part of manhole pump,
Adhesion of scum etc. to the water level gauge, growth, sediment, and sedimentation and deposition of sludge on the bottom of the manhole occur.
【０００４】そして、前記スカムの経時的発酵、固化成
長、堆積ヘドロの嫌気化や腐敗などにより、マンホール
蓋近傍での臭気公害、硫化水素の発生によるコンクリー
ト構造物等の腐食促進、マンホールの点検や清掃回数の
増加、作業工数の増加やマンホールポンプ機場の維持管
理費の増大等をもたらす。Fermentation of the scum with time, solidification growth, anaerobicization and decay of accumulated sludge, odor pollution near the manhole cover, promotion of corrosion of concrete structures due to generation of hydrogen sulfide, inspection of manhole, etc. This will increase the number of cleanings, the number of man-hours, and the maintenance cost of the manhole pump station.
【０００５】これを防止するために前記マンホールポン
プの揚水管に撹拌装置を設けてマンホール内の汚水を撹
拌、曝気するようにしたものが提案されている。In order to prevent this, it has been proposed that the pumping pipe of the manhole pump be provided with a stirrer to stir and aerate the dirty water in the manhole.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、前記従
来の撹拌装置付きマンホールポンプ機場では、撹拌装置
はマンホールポンプの起動、停止に連動して駆動するよ
うになっている。However, in the conventional manhole pump station with a stirring device, the stirring device is driven in association with the start and stop of the manhole pump.
【０００７】したがって、撹拌装置付きマンホールポン
プ機場では、撹拌装置を備えないマンホールポンプ機場
に比べて受電容量が大きくなって設備費が高価になり、
また、電力基本契約量が大きくなって電力利用料金が高
くなる等の課題を有していた。Therefore, in the manhole pump station with the agitator, the power receiving capacity is larger and the equipment cost is higher than that in the manhole pump station without the agitator.
In addition, there was a problem that the basic electricity contract volume increased and the electricity usage fee increased.
【０００８】さらに、前記撹拌装置は気中運転を避ける
ため、ポンプ停止水位より下方に設置されている。した
がって、貯留下水中のスカム成分や土砂、ヘドロ成分は
撹拌されて懸濁物となり排水されるが、貯留水位がポン
プの停止水位付近に達する短時間しか下水内に空気を巻
き込ませることができず、つまり、貯留下水に対する曝
気効果、すなわち、下水を嫌気性状態から好気性状態に
することによりスカム等の浮遊成分の生成、発酵、成長
や、ヘドロ等の腐敗、固化等を抑制することができない
という課題を有していた。Further, the agitator is installed below the water level at which the pump is stopped in order to avoid air operation. Therefore, the scum component, earth and sand, and sludge component in the stored sewage are stirred and discharged as a suspension, but the air can be entrained in the sewage only for a short time when the stored water level reaches near the pump stoppage level. That is, it is impossible to suppress aeration effect on stored sewage, that is, generation of floating components such as scum, fermentation and growth, and decay and solidification of sludge by changing sewage from anaerobic state to aerobic state. Had a problem.
【０００９】したがって、本発明は簡単な方法で設備費
および電力利用料金が安価なものとすることのできる撹
拌装置とマンホールポンプの起動、停止方法を提供する
ことを第１の目的とし、また、さらに加えて曝気効果を
良好に行うことができる撹拌装置とマンホールポンプの
起動、停止方法を提供することを第２の目的とするもの
である。Therefore, it is a first object of the present invention to provide a method for starting and stopping a stirring device and a manhole pump, which can reduce equipment costs and electric power usage charges by a simple method. In addition, it is a second object to provide a method of starting and stopping the stirring device and the manhole pump, which can achieve good aeration effect.
【００１０】[0010]
【課題を解決するための手段】本発明は、前記目的を達
成するために、マンホールポンプと撹拌装置とを設置し
たマンホールポンプ機場において、マンホール内水位が
ポンプ起動水位となると、前記撹拌装置を所定時間駆動
させ、駆動停止後に前記マンホールポンプを起動してポ
ンプ停止水位でマンホールポンプを停止させるようにし
たものである。In order to achieve the above-mentioned object, the present invention provides a manhole pump station equipped with a manhole pump and a stirrer, and when the water level in the manhole reaches a pump starting water level, the stirrer is set to a predetermined level. The manhole pump is driven for a certain period of time, and after the driving is stopped, the manhole pump is activated to stop the manhole pump at the pump stop water level.
【００１１】なお、前記撹拌装置をポンプ起動水位位置
近傍に設置することが好ましい。It is preferable that the agitator is installed near the pump starting water level position.
【００１２】[0012]
【発明の実施の形態】つぎに、本発明の実施の形態を図
にしたがって説明する。本発明にかかるマンホールポン
プ設備Ｔは、大略、モータ５とインペラ（図示せず）等
を内蔵するハウジング２とからなるマンホールポンプ１
と、マンホールＨの底部に設置されたベンド６と、この
ベンド６の吐出側に接続され、排水管９Ａへ至る揚水管
８と、撹拌装置１０とからなる。なお、９Ｂは下水流入
管である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. A manhole pump facility T according to the present invention generally includes a manhole pump 1 including a motor 5 and a housing 2 containing an impeller (not shown) and the like.
A bend 6 installed at the bottom of the manhole H, a pumping pipe 8 connected to the discharge side of the bend 6 to reach a drain pipe 9A, and a stirring device 10. In addition, 9B is a sewage inflow pipe.
【００１３】また、前記ベンド６あるいはマンホールＨ
の底部等の固定部からマンホールＨの上部にかけて下記
するように前記マンホールポンプ１を昇降させる２本の
ステンレス等耐食性を有する金属製パイプからなるガイ
ド部材１５が設置されている。すなわち、前記ガイド部
材１５の上端は、図３に示すように、マンホールＨの上
部に差し渡して設けた支持梁１６から突出したブラケッ
ト１７に取り付けられている。図に示すものは、ブラケ
ット１７の先端部形状はガイド部材１５の径より小径の
半円形となっている。なお、図１ではガイド部材１５の
上部のみを示している。Further, the bend 6 or the manhole H
A guide member 15 made of a metal pipe having corrosion resistance such as stainless steel is installed to move the manhole pump 1 up and down as described below from a fixed portion such as a bottom portion to an upper portion of the manhole H. That is, the upper end of the guide member 15 is attached to a bracket 17 protruding from a support beam 16 provided across the upper portion of the manhole H, as shown in FIG. As shown in the drawing, the shape of the tip of the bracket 17 is a semicircle having a diameter smaller than that of the guide member 15. In FIG. 1, only the upper portion of the guide member 15 is shown.
【００１４】前記マンホールポンプ１は、前記ハウジン
グ２の前方、すなわち、吐出側フランジ３の上部には、
前記ベンド６の流入側フランジ７に係止するフック部４
を備えるとともに、前記吐出側フランジ３には前記２本
のガイド部材１５の外方を抱持する摺動係合部材１８を
有する。The manhole pump 1 is provided at the front of the housing 2, that is, at the upper part of the discharge side flange 3,
Hook part 4 to be locked to the inflow side flange 7 of the bend 6
In addition, the discharge side flange 3 has a sliding engagement member 18 that holds the outside of the two guide members 15.
【００１５】前記摺動係合部材１８は、図３に示すよう
に、２本のガイド部材１５の対向する内面側外方を抱持
するように半円形の凹部１９を有するもので、ハウジン
グ２の吐出側フランジ３に一体的に設けられている。As shown in FIG. 3, the sliding engagement member 18 has a semicircular recess 19 so as to embrace the facing inner surfaces of the two guide members 15, and the housing 2 Is integrally provided on the discharge side flange 3.
【００１６】前記撹拌装置１０は、撹拌羽根１１と水中
モータ部１２を備えたもので、水中モータ部１２の上部
にサポート部材１３を有し、ポンプ起動水位Ａ１近傍
に、前記２本の揚水管８，８間に取付部材１３Ａにより
取り付けられている。The stirring device 10 is provided with a stirring blade 11 and a submersible motor unit 12, and has a support member 13 on the upper portion of the submersible motor unit 12, and the two pumping waters are provided near the pump starting water level A 1. It is mounted between the tubes 8 and 8 by a mounting member 13A.
【００１７】したがって、前記マンホールポンプ１は、
その摺動係合部材１８で２本のガイド部材１５を抱持さ
せるように上方からガイド部材１５に装着し、チェーン
２１により上方から吊り下げて降下していくと、やがて
フック部４がベンド６の流入側フランジ７に係止し、そ
の後、両フランジ３，７の端面がマンホールポンプ１の
自重により圧着してマンホールポンプ１をベンド６に接
続する。Therefore, the manhole pump 1 is
The two guide members 15 are attached to the guide member 15 from above by the sliding engagement member 18 so that the guide member 15 is hung from above by the chain 21 and descends. The flanges 3 and 7 are locked to the inflow side flange 7, and then the end faces of both the flanges 3 and 7 are crimped by the weight of the manhole pump 1 to connect the manhole pump 1 to the bend 6.
【００１８】ついで、前記チェーン２１を前記支持梁１
６に設けた係止部１４に係止する。Next, the chain 21 is attached to the support beam 1
It is locked to the locking portion 14 provided in 6.
【００１９】前記構成において、汚水流入管９Ｂから汚
水が流入し、ポンプ起動水位Ａ１まで水位が上昇したこ
とを図示しない水位計が検知すると、水位スイッチによ
り、まず、撹拌装置１０が起動し所定時間下水を撹拌す
る。この撹拌装置１０の起動時間は、汚水を十分に曝
気、撹拌させるため、貯水量の概ね２〜１０倍の累積撹
拌流量となる時間であることが好ましい。In the above structure, when a water level indicator (not shown) detects that the waste water has flowed in from the waste water inflow pipe 9B and the water level has risen to the pump starting water level A 1 , the agitator 10 is first activated by the water level switch to a predetermined level. Stir the water for an hour. The start-up time of the stirring device 10 is preferably a time at which the cumulative stirring flow rate is approximately 2 to 10 times the stored water amount in order to sufficiently aerate and stir the wastewater.
【００２０】前述のように、撹拌装置１０が起動する
と、撹拌装置１０はポンプ起動水位Ａ １の近傍に位置す
るため、水面に浮遊するスカム成分は、撹拌水流に巻き
込まれ水中に懸濁状態で混和するとともに、マンホール
１の内壁、揚水管８などに付着するスカム成分は、撹拌
水流で剥がされ撹拌水流に巻き込まれ、水中に懸濁状態
で混和するとともに、水中に空気を巻き込んで曝気し、
嫌気性下水を好気化することになる。As mentioned above, the stirring device 10 is started.
And the stirring device 10 is the pump starting water level A 1Located near
Therefore, the scum component that floats on the water surface is wrapped around the stirring water flow.
It is mixed in the water in a suspended state, and the manhole
The scum component adhering to the inner wall of 1, the pumping pipe 8, etc. is stirred.
Peeled off by water flow, caught in stirred water flow, suspended in water
Aeration by entraining air in the water,
It will aerate anaerobic sewage.
【００２１】一方、マンホールＨの底部に沈澱した土
砂、ヘドロ成分やモータ５、ベンド６、水位計などに沈
澱付着した土砂、ヘドロ成分は、撹拌水流により巻き上
げられて水中に懸濁状態で混和する。On the other hand, the sediment deposited on the bottom of the manhole H, the sludge component and the sediment deposited on the motor 5, the bend 6, the water level gauge, etc., and the sludge component are rolled up by the stirring water flow and mixed in the water in a suspended state. .
【００２２】そして、所定時間経過すると、前記撹拌装
置１０は停止し、続いてマンホールポンプ１が起動し、
前記懸濁状態となった下水は、マンホールポンプ１によ
り揚水管８、排水管９Ａを介して排水される。After a lapse of a predetermined time, the agitator 10 is stopped, the manhole pump 1 is subsequently activated,
The sewage in the suspended state is drained by the manhole pump 1 through the pumping pipe 8 and the drain pipe 9A.
【００２３】マンホールＨの水位がポンプ停止水位Ａ２
に達すると、前記マンホールポンプ１は停止する。The water level of the manhole H is the pump stop water level A 2
When it reaches, the manhole pump 1 is stopped.
【００２４】前記実施の形態においては、撹拌装置１０
を揚水管９Ａに取り付ける形式のものであるがこれに限
らず、種々の方法を採用することができる。また、マン
ホールポンプ１も、マンホールＨの底部に固定設置する
ものであってもよい。さらに、撹拌装置１０の設置位置
は、単に、下水の撹拌効果を得るのみであれば、必ずし
もポンプ起動水位Ａ１近傍でなくてもよい。In the above embodiment, the stirring device 10 is used.
Is attached to the pumping pipe 9A, but is not limited to this, and various methods can be adopted. The manhole pump 1 may also be fixedly installed at the bottom of the manhole H. Further, the installation position of the agitation device 10 does not necessarily have to be near the pump starting water level A 1 as long as the agitation effect of sewage is simply obtained.
【００２５】[0025]
【発明の効果】以上の説明で明らかなように、請求項１
の発明によれば、マンホール内の水位がマンホールポン
プの起動水位になってもマンホールポンプは起動せず、
撹拌装置のみが所定時間起動し、両者が同時に運転され
ない。通常、マンホールポンプのモータ容量は、撹拌装
置のモータ容量より大きいので、マンホールポンプ機場
の電源として、撹拌装置のモータ容量を加算する必要が
ない。したがって、設備の受電容量は従来のものより小
さく設備費が安価になり、かつ、電力基本契約量が少な
く電力利用料金が高くなることもない。なお、撹拌装置
はマンホールポンプの起動前にその駆動を終了するた
め、撹拌装置が気中運転する危険性は全くない。As is apparent from the above description, claim 1
According to the invention, the manhole pump does not start even if the water level in the manhole reaches the starting water level of the manhole pump,
Only the stirring device is activated for a predetermined time, and both are not operated at the same time. Normally, the motor capacity of the manhole pump is larger than the motor capacity of the agitator, so it is not necessary to add the motor capacity of the agitator as a power source for the manhole pump station. Therefore, the power receiving capacity of the equipment is smaller than that of the conventional equipment, the equipment cost is low, and the basic electricity contract amount is small and the electricity usage charge is not increased. Since the stirring device finishes driving before starting the manhole pump, there is no danger of the stirring device operating in the air.
【００２６】請求項２の発明では、撹拌装置がポンプ起
動水位近傍に設置するようにしているため、前記請求項
１の発明の効果に加えて、撹拌装置の起動により下水内
に空気を巻き込んで嫌気性下水を好気性とするため、マ
ンホールポンプの停止後のスカム等の浮遊成分の生成、
発酵、成長やヘドロ等の腐敗、固化等を抑制することが
できるという効果を奏する。In the invention of claim 2, since the stirring device is installed near the pump starting water level, in addition to the effect of the invention of claim 1, air is entrained in the sewage by starting the stirring device. To make anaerobic sewage aerobic, the production of floating components such as scum after the manhole pump is stopped,
It is possible to suppress fermentation, growth, spoilage such as sludge, and solidification.
【図１】 本発明にかかるマンホールポンプ機場の正面
断面図。FIG. 1 is a front sectional view of a manhole pumping station according to the present invention.
【図２】 図１の側面断面図。FIG. 2 is a side sectional view of FIG.
【図３】 本発明にかかるマンホールポンプ機場の平面
断面図。FIG. 3 is a plan sectional view of a manhole pumping station according to the present invention.
１〜マンホールポンプ、８〜揚水管、９Ａ〜排水管、９
Ｂ〜下水流入管、１０〜撹拌装置、Ｈ〜マンホール。1-Manhole pump, 8-Pump pipe, 9A-Drain pipe, 9
B-sewage inflow pipe, 10-stirring device, H-manhole.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 木村 修 大阪府高槻市宮田町１丁目１番８号 株式 会社酉島製作所内 Ｆターム(参考） 2D063 DC04 DC06 DC07 3H020 AA03 AA08 BA02 BA03 BA11 BA21 CA07 DA01 DA21 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Osamu Kimura 1-8 Miyata-cho, Takatsuki-shi, Osaka Stocks Company Torishima Factory F-term (reference) 2D063 DC04 DC06 DC07 3H020 AA03 AA08 BA02 BA03 BA11 BA21 CA07 DA01 DA21
Claims (2)
たマンホールポンプ機場において、マンホール内水位が
ポンプ起動水位となると、前記撹拌装置を所定時間駆動
させ、駆動停止後に前記マンホールポンプを起動してポ
ンプ停止水位でマンホールポンプを停止させることを特
徴とするマンホールポンプ機場の撹拌装置とマンホール
ポンプの起動、停止方法。1. At a manhole pump station equipped with a manhole pump and a stirring device, when the water level in the manhole reaches a pump starting water level, the stirring device is driven for a predetermined time, and after the driving is stopped, the manhole pump is started to stop the pump. A method of starting and stopping a stirring device and a manhole pump at a manhole pump station, characterized by stopping the manhole pump at a water level.
に設置してあることを特徴とする前記請求項１に記載の
マンホールポンプ機場の撹拌装置とマンホールポンプの
起動、停止方法。2. The method for starting and stopping a stirring device and a manhole pump at a manhole pump station according to claim 1, wherein the stirring device is installed near a pump starting water level position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001224390A JP2003034977A (en) | 2001-07-25 | 2001-07-25 | Method of starting and stopping agitation apparatus and manhole pump in manhole pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001224390A JP2003034977A (en) | 2001-07-25 | 2001-07-25 | Method of starting and stopping agitation apparatus and manhole pump in manhole pump station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003034977A true JP2003034977A (en) | 2003-02-07 |
Family
ID=19057556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001224390A Pending JP2003034977A (en) | 2001-07-25 | 2001-07-25 | Method of starting and stopping agitation apparatus and manhole pump in manhole pump station |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003034977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863252A (en) * | 2015-05-28 | 2015-08-26 | 扬州大学 | Method for rectification of bottoms of Archimedean screw grid bars of integrated pump station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02229536A (en) * | 1989-01-11 | 1990-09-12 | Flygt Ab | Submerged motor agitator for activation of mixture or sludge |
| JPH0718728A (en) * | 1993-07-02 | 1995-01-20 | Kubota Corp | Operation method for manhole pump |
| JP2000325939A (en) * | 1999-05-21 | 2000-11-28 | Tsurumi Mfg Co Ltd | Adjustable-speed submerged electric agitator |
-
2001
- 2001-07-25 JP JP2001224390A patent/JP2003034977A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02229536A (en) * | 1989-01-11 | 1990-09-12 | Flygt Ab | Submerged motor agitator for activation of mixture or sludge |
| JPH0718728A (en) * | 1993-07-02 | 1995-01-20 | Kubota Corp | Operation method for manhole pump |
| JP2000325939A (en) * | 1999-05-21 | 2000-11-28 | Tsurumi Mfg Co Ltd | Adjustable-speed submerged electric agitator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863252A (en) * | 2015-05-28 | 2015-08-26 | 扬州大学 | Method for rectification of bottoms of Archimedean screw grid bars of integrated pump station |
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