JP2754366B2 - Water intake device in purification facility - Google Patents
Water intake device in purification facilityInfo
- Publication number
- JP2754366B2 JP2754366B2 JP7326315A JP32631595A JP2754366B2 JP 2754366 B2 JP2754366 B2 JP 2754366B2 JP 7326315 A JP7326315 A JP 7326315A JP 32631595 A JP32631595 A JP 32631595A JP 2754366 B2 JP2754366 B2 JP 2754366B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- intake
- pit
- water intake
- dust
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Filtration Of Liquid (AREA)
- Sewage (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、河川等の水路から
原水を取水して浄化処理施設へ送水する浄化施設におけ
る取水装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water intake device in a purification facility for taking raw water from a water channel such as a river and sending it to a purification treatment facility.
【０００２】[0002]
【従来の技術】従来、このような浄化施設における取水
装置は、取水を行なう河川等の水路に沿って取水ピット
を設けて取水するようにしている。2. Description of the Related Art Conventionally, a water intake device in such a purification facility is provided with a water intake pit along a water channel of a river or the like from which water is taken.
【０００３】[0003]
【発明が解決しようとする課題】ところで、このような
河川等の水路には木の葉や種々様々のごみ等の塵芥が流
れているために、これらの塵芥を除去する除塵用スクリ
ーンを取水口に設置して、塵芥が取水ピット内に進入す
るのを防止するようにしているが、塵芥の除去量に比例
して除塵用スクリーンが目詰まりを起こしている。その
ために、定期的にまたは連続的に除塵用スクリーンから
塵芥の撤去・処分を行なっている。しかし、この塵芥の
点検や撤去作業に多くの労力と時間を要し、これらに多
大のコストが掛かっている。そこで本発明は、塵芥の点
検や撤去作業の必要性をなくし、連続取水が可能な浄化
施設における取水装置を提供することを目的としてい
る。By the way, since dust such as leaves and various kinds of garbage flows in such a waterway such as a river, a dust removing screen for removing the dust is installed at the water inlet. Then, dust is prevented from entering the water intake pit, but the dust removing screen is clogged in proportion to the amount of dust removed. To this end, dust is regularly or continuously removed from the dust removal screen. However, a lot of labor and time are required for the inspection and removal work of the dust, and these are costly. Therefore, an object of the present invention is to provide a water intake device in a purification facility capable of continuous water intake, eliminating the need for inspection and removal work of garbage.
【０００４】[0004]
【課題を解決するための手段】かかる目的を達成するた
めに本発明に係わる浄化施設における取水装置は、取水
を行なう水路に沿って取水ピットを２基並列して設け、
各取水ピットには取水口に除塵用スクリーンを設けると
共に、それぞれその中に取水ポンプを設置し、該各取水
ポンプに浄化処理施設に至る主管路を接続すると共に、
これらの各主管路にそれぞれ他方の取水ピットに接続さ
せる枝管路を分岐して設け、前記各取水ポンプを交互に
運転して取水した原水を主管路へ送水させる際に、一部
の原水を枝管路より取水ポンプが停止している取水ピッ
トへ送水して該取水ピット内の原水を取水口を介して水
路側へ逆流させることにより除塵用スクリーンに付着す
る塵芥を除去させるように構成した。In order to achieve the above object, a water intake apparatus in a purification facility according to the present invention is provided with two water intake pits arranged in parallel along a water channel for water intake.
Each intake pit is provided with a dust removal screen at the intake port, and an intake pump is installed in each of the intake pits, and each intake pump is connected to a main pipeline leading to a purification treatment facility,
In each of these main pipelines, a branch pipeline to be connected to the other intake pit is provided in a branched manner, and when the intake pumps are alternately operated to feed the raw water that has been withdrawn to the main pipeline, some of the raw water is removed. Water is fed from the branch pipe to the intake pit where the intake pump is stopped, and the raw water in the intake pit is made to flow backward through the water inlet to the water channel side, thereby removing dust attached to the dust removal screen. .
【０００５】[0005]
【発明の実施の形態】以下に本発明に係わる浄化施設に
おける取水装置の実施の形態を図面と共に説明する。図
において１は矢示方向に水が流れる水路であり、該水路
１に沿って第１，第２の２基の取水ピット２，３を並列
に設けている。これらの各取水ピット２，３の取水口
４，５にはごみ等の塵芥が流入するのを防止するための
除塵用スクリーン６，７を張設している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a water intake device in a purification plant according to the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a water channel in which water flows in the direction indicated by an arrow, and two first and second water intake pits 2 and 3 are provided in parallel along the water channel 1. Dust removal screens 6, 7 for preventing dust and other dust from flowing into the intake ports 4, 5 of the intake pits 2, 3 are provided.
【０００６】そして、第１取水ピット２に設置した第１
取水ポンプ８に浄化処理施設１０に至る主管路１１を接
続する。この主管路１１には途中に逆止弁１２を取り付
けるが、この逆止弁１２の手前に枝管路１３を分岐して
設ける。この枝管路１３は調整弁１４を介して前記第２
取水ピット３に接続させる。[0006] Then, the first intake pit 2
The main pipe 11 leading to the purification treatment facility 10 is connected to the water intake pump 8. A non-return valve 12 is attached to the main line 11 on the way, and a branch line 13 is provided before the check valve 12 in a branched manner. The branch line 13 is connected to the second
Connect to water intake pit 3.
【０００７】また、第２取水ピット３に設置した第２取
水ポンプ９に主管路１５を接続するが、この主管路１５
は前記主管路１１の途中で接続させる。この主管路１５
にも途中に逆止弁１６を取り付け、この逆止弁１６の手
前に枝管路１７を分岐して設ける。この枝管路１７は調
整弁１８を介して前記第１取水ピット２に接続させる。A main line 15 is connected to a second water intake pump 9 installed in the second water intake pit 3.
Is connected in the middle of the main pipeline 11. This main line 15
Also, a check valve 16 is attached in the middle, and a branch pipe line 17 is provided before the check valve 16 in a branched manner. This branch pipe line 17 is connected to the first water intake pit 2 via a regulating valve 18.
【０００８】つぎに、このように構成された本発明の浄
化施設における取水装置の使用について説明する。各取
水ポンプ８，９は焼き付き防止のため例えば２４時間連
続で交互に運転することとし、第１取水ピット２と第２
取水ピット３とに交互に取水して浄化処理施設１０へ原
水を供給させる。よって、第１取水ポンプ８の運転中は
第２取水ポンプ９は停止される。なお、これら第１・２
取水ポンプ８，９の切替は所定時間毎に自動的に行なわ
れえるよう制御される。Next, the use of the water intake device in the purification facility of the present invention thus configured will be described. The intake pumps 8 and 9 are alternately operated, for example, continuously for 24 hours in order to prevent seizure, and the first intake pit 2 and the second intake pit 2 are operated.
Raw water is supplied to the purification treatment facility 10 by alternately taking water with the water intake pit 3. Therefore, the second intake pump 9 is stopped while the first intake pump 8 is operating. In addition, these 1st and 2nd
Switching of the intake pumps 8 and 9 is controlled so that it can be automatically performed at predetermined time intervals.
【０００９】すなわち、図１に示すように第１取水ポン
プ８の運転中、水路１を流れる原水は除塵用スクリーン
６を通過して第１取水ピット２に流入する。この際、原
水中の塵芥は除塵用スクリーン６の水路１面側に付着す
る。第１取水ピット２に流入した原水は第１取水ポンプ
８によって汲み上げられ、主管路１１を経て浄化処理施
設１０へ送水されると共に、その原水の一部は枝管路１
３へ分流され第２取水ピット３へ送水される。このよう
にして第２取水ピット３へ送水されると、該第２取水ピ
ット３内の水位が上り、原水は除塵用スクリーン７を通
って水路１側へ逆流される。このときに、第２取水ポン
プ９の運転時に除塵用スクリーン７の水路１面側に付着
してた塵芥を、第２取水ピット３の内側からの水圧で除
去して除塵用スクリーン７を清掃する。That is, as shown in FIG. 1, during operation of the first water intake pump 8, raw water flowing through the water channel 1 passes through the dust removing screen 6 and flows into the first water intake pit 2. At this time, dust in the raw water adheres to the water channel 1 side of the dust removing screen 6. The raw water that has flowed into the first water intake pit 2 is pumped up by the first water intake pump 8, sent to the purification treatment facility 10 through the main pipeline 11, and a part of the raw water is branched into the branch pipeline 1.
3 and is sent to the second water intake pit 3. When water is sent to the second water intake pit 3 in this manner, the water level in the second water intake pit 3 rises, and the raw water flows back to the water channel 1 through the dust removal screen 7. At this time, dust adhering to the water screen 1 side of the dust removing screen 7 during operation of the second water intake pump 9 is removed by water pressure from inside the second water intake pit 3 to clean the dust removing screen 7. .
【００１０】次に、図２に示すように、第２取水ポンプ
９の運転中、水路１に流れる原水は除塵用スクリーン７
を通過して第２取水ピット３に流入するが、原水中の塵
芥は除塵用スクリーン７の水路１面側に付着する。第２
取水ピット３に流入した原水は第２取水ポンプ９によっ
て汲み上げられ、主管路１５を経て浄化処理施設１０へ
送水されると共に、その原水の一部は枝管路１７へ分流
され第１取水ピット２へ送水される。このようにして第
１取水ピット２へ送水されると、該第１取水ピット２内
の水位が上がり原水は除塵用スクリーン６を通って水路
１側へ逆流される。このときに、第１取水ンプ８の運転
時に除塵用スクリーン６の水路１面側に付着していた塵
芥を、第１取水ピット２の内側からの水圧で除去して除
塵用スクリーン６を清掃する。Next, as shown in FIG. 2, during operation of the second water intake pump 9, the raw water flowing through the water channel 1 is removed by the dust removing screen 7.
, And flows into the second water intake pit 3, but the dust in the raw water adheres to the water screen 1 side of the screen 7 for dust removal. Second
The raw water that has flowed into the intake pit 3 is pumped up by the second intake pump 9 and sent to the purification treatment facility 10 through the main conduit 15, and a part of the raw water is diverted to the branch conduit 17 to be supplied to the first intake pit 2. Water is sent to When water is sent to the first water intake pit 2 in this manner, the water level in the first water intake pit 2 rises, and the raw water flows back to the water channel 1 through the dust removing screen 6. At this time, dust adhering to the side of the water passage 1 of the dust removing screen 6 during the operation of the first water intake pump 8 is removed by water pressure from inside the first water intake pit 2 to clean the dust removing screen 6. .
【００１１】以上のようにして第１取水ポンプ８と第２
取水ポンプ９の運転を交互に繰り返すことにより第１取
水ピット２の除塵用スクリーン６も第２取水ピット３の
除塵用スクリーン７も何れも塵芥が水圧により自動的に
除去されて、わざわざ撤去作業をする必要もなく、連続
取水が可能になる。また、本発明は、都市排水路等で無
人運転されている簡易式浄化処理施設への適用が有効で
あり、小規模下水道を始め、ポンプアップにより取水を
行なう種々のケースに対応することが可能である。As described above, the first intake pump 8 and the second
By alternately repeating the operation of the water intake pump 9, both the dust removal screen 6 of the first water intake pit 2 and the dust removal screen 7 of the second water intake pit 3 automatically remove dusts by water pressure. It is possible to continuously take water without having to do it. In addition, the present invention is effectively applied to a simple purification treatment facility that is operated unmanned in an urban drainage channel or the like, and can cope with various cases in which water intake is performed by pumping up, including small-scale sewerage. It is.
【００１２】[0012]
【発明の効果】以上に述べたように本発明に係わる浄化
施設における取水装置は、水路に沿って２基並列して設
けた各取水ピットにそれぞれ取水ポンプを設け、該各取
水ポンプに主管路を接続すると共にこれら各主管路にそ
れぞれ他方の取水ピットに接続させる枝管路を設け、各
取水ポンプを交互に運転して、汲み上げた原水の一部を
他方の取水ピットに戻し、水路へ逆流する水圧で、その
取水ピットの取水口に張設した除塵用スクリーンの塵芥
を自動的に除去させるようにしたので、除塵用スクリー
ンが目詰まりを起こすことはなく連続取水が可能とな
り、従来定期的または連続的に行なっていた除塵用スク
リーンの塵芥の点検や除去作業を不要にし、塵芥除去に
要したコストを節減することができる。As described above, in the water intake system in the purification facility according to the present invention, two water intake pits provided in parallel along the water channel are provided with water intake pumps respectively, and each of the water intake pumps is provided with a main pipeline. A branch pipe is connected to each of these main pipelines and connected to the other intake pit, and each intake pump is operated alternately to return a part of the pumped raw water to the other intake pit and to flow back to the water channel The dust pressure on the intake screen of the intake pit automatically removes dust from the intake screen of the intake pit, so that the intake screen is not clogged and continuous intake is possible. Alternatively, it is not necessary to continuously inspect and remove dust from the dust removing screen, and the cost required for dust removal can be reduced.
【図１】第１取水ポンプ運転中の原水の流れを示す平面
図。FIG. 1 is a plan view showing the flow of raw water during operation of a first intake pump.
【図２】第２取水ポンプ運転中の原水の流れを示す平面
図。FIG. 2 is a plan view showing a flow of raw water during operation of a second intake pump.
１ 水路 ２，３ 取水ピット ４，５ 取水口 ６，７ 除塵用スクリーン ８，９ 取水ポンプ １０ 浄化処理施設 １１，１５ 主管路 １３，１７ 枝管路 DESCRIPTION OF SYMBOLS 1 Waterway 2,3 Intake pit 4,5 Intake port 6,7 Dust removal screen 8,9 Intake pump 10 Purification treatment facility 11,15 Main pipeline 13,17 Branch pipeline
Claims (1)
２基並列して設け、各取水ピットには取水口に除塵用ス
クリーンを設けると共に、それぞれその中に取水ポンプ
を設置し、該各取水ポンプに浄化処理施設に至る主管路
を接続すると共に、これらの各主管路にそれぞれ他方の
取水ピットに接続させる枝管路を分岐して設け、前記各
取水ポンプを交互に運転して取水した原水を主管路へ送
水させる際に一部の原水を枝管路より取水ポンプが停止
している取水ピットへ送水させるように構成した浄化施
設における取水装置。1. An intake pit is provided in parallel along two water intake channels, and each intake pit is provided with a dust-removing screen at an intake port, and an intake pump is installed therein. The pump is connected to the main pipes leading to the purification treatment facility, and each of these main pipes is provided with a branch pipe connected to the other water intake pit. A water intake device in a purification facility configured to supply a part of raw water from a branch pipeline to a water intake pit where a water intake pump is stopped when water is supplied to a main pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7326315A JP2754366B2 (en) | 1995-11-20 | 1995-11-20 | Water intake device in purification facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7326315A JP2754366B2 (en) | 1995-11-20 | 1995-11-20 | Water intake device in purification facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09143969A JPH09143969A (en) | 1997-06-03 |
| JP2754366B2 true JP2754366B2 (en) | 1998-05-20 |
Family
ID=18186397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7326315A Expired - Lifetime JP2754366B2 (en) | 1995-11-20 | 1995-11-20 | Water intake device in purification facility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2754366B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100967646B1 (en) * | 2003-07-11 | 2010-07-07 | 두산중공업 주식회사 | Intake Apparatus of Hybrid Desalination Plant |
| JP7057966B2 (en) * | 2018-03-26 | 2022-04-21 | 大阪瓦斯株式会社 | Maintenance method for drainage device |
-
1995
- 1995-11-20 JP JP7326315A patent/JP2754366B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09143969A (en) | 1997-06-03 |
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