JPH05171661A - Storage pump device - Google Patents
Storage pump deviceInfo
- Publication number
- JPH05171661A JPH05171661A JP34084091A JP34084091A JPH05171661A JP H05171661 A JPH05171661 A JP H05171661A JP 34084091 A JP34084091 A JP 34084091A JP 34084091 A JP34084091 A JP 34084091A JP H05171661 A JPH05171661 A JP H05171661A
- Authority
- JP
- Japan
- Prior art keywords
- passage
- pump
- pumping
- siphon
- valve
- 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.)
- Granted
Links
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水位に応じて運転状態
の切り換えが可能な揚水ポンプ装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pumping pump system capable of switching operating states according to the water level.
【０００２】[0002]
【従来の技術】近時の都市部の密集化傾向により、洪水
対策用の排貯水路を地上に設けることが困難な状況にな
ってきた。そこで、大深度地下利用の一環として、地下
に排貯水機能を備えた大規模なポンプ場を建設するとい
う構想が打ち出されている。2. Description of the Related Art Due to the recent tendency of urban areas to become dense, it has become difficult to provide drainage storage channels on the ground for flood control. Therefore, as part of deep underground use, the idea of constructing a large-scale pumping station with a drainage and storage function underground has been proposed.
【０００３】たとえば地下５０ｍといった大深度地下に
ポンプ場を設ける場合、地下の排貯水路に溜まった水を
地上の吐出槽などに排出するには、高揚程のポンプ設備
が必要になり、また、そのポンプ設備に用いられるポン
プには、実稼働である揚水運転や、貯水量の少ない低水
位時の小水量での管理運転や待機運転を行うことが要求
される。For example, when a pumping station is installed underground at a deep depth of 50 m, a pumping facility with a high head is required in order to discharge the water accumulated in the underground drainage storage channel to a discharge tank on the ground. The pump used for the pump equipment is required to perform pumping operation which is an actual operation, and management operation and standby operation with a small amount of water at a low water level with a small amount of stored water.
【０００４】[0004]
【発明が解決しようとする課題】このための対策とし
て、揚水通路に設けたバルブの開閉制御によって吐出水
量の調節を行うという方法があるけれども、この方法は
揚水通路の口径が大きい場合にはバルブの開閉制御に長
時間を要するなどの問題があった。As a countermeasure for this, there is a method of adjusting the amount of discharged water by controlling the opening and closing of a valve provided in the pumping passage, but this method is used when the diameter of the pumping passage is large. There was a problem that it took a long time to control the opening and closing.
【０００５】本発明は以上の問題に鑑みてなされたもの
で、短時間でポンプの運転状態を容易かつ確実に切り換
えることのできる揚水ポンプ装置を提供することを目的
とする。The present invention has been made in view of the above problems, and an object of the present invention is to provide a pumping pump system which can easily and reliably switch the operating state of the pump in a short time.
【０００６】[0006]
【課題を解決するための手段】本発明による揚水ポンプ
装置は、ポンプの吐出口に連通した揚水通路にサイホン
通路が接続され、そのサイホン通路の頂部曲り部に、開
閉弁を具備する空気流通路が連通されていると共に、吐
出槽より戻り弁を有する戻り通路がポンプ吸込室に連通
されているものである。In the pumping pump apparatus according to the present invention, a siphon passage is connected to a pumping passage communicating with a discharge port of the pump, and an air flow passage having an opening / closing valve is provided at a top bent portion of the siphon passage. And a return passage having a return valve from the discharge tank to the pump suction chamber.
【０００７】[0007]
【作用】上記構成の揚水ポンプ装置において、実稼働状
態である揚水運転時には、空気流通路の開閉弁を閉じ
て、あるいは必要に応じて真空ポンプで空気を吸引しポ
ンプを運転する。そのようにすると、サイホン通路が満
水になるため、実揚程が小さくなって吐出量が多くな
る。管理運転時や待機運転時のように小水量を揚水とき
は、空気流通路の開閉弁を開けてサイホン通路を大気に
連通させ、あるいは必要に応じて高圧空気を吹き込む。
そのようにすると、サイホン通路が満水にならなくなっ
てサイホンが形成されないため、実揚程が大きくなって
吐出量が少なくなる。さらに、揚水された水は戻り弁が
開で戻り通路を吸込室側に戻る。In the pumping pump apparatus having the above structure, during pumping operation which is the actual operating state, the on-off valve of the air flow passage is closed, or the vacuum pump sucks air as necessary to operate the pump. By doing so, the siphon passage is filled with water, and the actual lift is reduced and the discharge amount is increased. When pumping a small amount of water, such as during maintenance operation or standby operation, open the on-off valve of the air flow passage to connect the siphon passage to the atmosphere, or blow high-pressure air as necessary.
By doing so, since the siphon passage is not filled with water and siphons are not formed, the actual lift is increased and the discharge amount is decreased. Further, the pumped water returns to the suction chamber side through the return passage by opening the return valve.
【０００８】[0008]
【実施例】図１は本発明の実施例による揚水ポンプ装置
を示し、１は地下５０ｍといった大深度地下に設けられ
た吸水槽であり、底部に取水口２が形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a pumping pump device according to an embodiment of the present invention, in which 1 is a water absorption tank provided underground under a large depth of 50 m, and a water intake 2 is formed at the bottom.
【０００９】３は高揚程の立軸ポンプで、駆動モータＭ
で回転駆動される羽根車３１や、吸込口３２や、吐出口
３３などを有している。ポンプ３の吐出口３３に揚水通
路４が連通され、この揚水通路４にサイホン通路５が連
通されている。そして、サイホン通路５が臨む吐出槽６
とポンプ３の吸込口３２とが戻り通路７で連通され、こ
の戻り通路７に開閉弁８が介在されている。また、上記
サイホン通路５の頂部曲り部５１に空気流通路９が連通
されている。空気流通路９には開閉弁１０が介在され、
さらに、それに分岐して開閉弁１００，２００と真空ポ
ンプ２１０、圧縮機１１０がそれぞれ連結されている。
１１は吐出槽６に設けられた堰、１２は吸水槽１に設け
られた堰である。Reference numeral 3 is a vertical pump having a high head and a drive motor M.
It has an impeller 31, which is driven to rotate by, a suction port 32, a discharge port 33, and the like. The pumping passage 4 is connected to the discharge port 33 of the pump 3, and the siphon passage 5 is connected to the pumping passage 4. The discharge tank 6 facing the siphon passage 5
And the suction port 32 of the pump 3 are communicated with each other through the return passage 7, and the on-off valve 8 is interposed in the return passage 7. Further, the air flow passage 9 is communicated with the top bent portion 51 of the siphon passage 5. An on-off valve 10 is interposed in the air flow passage 9,
Further, the branch valves 100 and 200, the vacuum pump 210, and the compressor 110 are branched and connected to them.
Reference numeral 11 is a weir provided in the discharge tank 6, and 12 is a weir provided in the water absorption tank 1.
【００１０】上記構成の揚水ポンプ装置において、実稼
働状態である揚水運転時には、空気流通路９の開閉弁１
０を閉じてポンプ３を運転する。そのようにすると、サ
イホン通路５が満水になるため、実揚程が小さくなって
吐出量が多くなる。管理運転時や待機運転時のように小
水量を揚水ときは、空気流通路９の開閉弁１０を開けて
サイホン通路５を大気に連通させておく。そのようにす
ると、図示のようにサイホン通路５に空気溜りＳが形成
されサイホンが形成されないため、実揚程Ｈａが大きく
なって吐出量が少なくなる。なお、戻り弁８は、揚水運
転時には閉、管理運転時には開とされ、管理運転時に吐
出槽６に排出された水は戻り通路７を経てポンプ３の吸
込室３２側に戻される。ここで、サイホン形成を促進す
るために真空ポンプ２１０で空気を吸引することもあ
り、また、サイホン形成を防ぐために圧縮機１１０で空
気を送り込んでもよい。図１において、Ｗ１は揚水運転
時の水位、Ｗ２は管理運転時の水位を示している。In the pumping pump apparatus having the above-mentioned structure, the opening / closing valve 1 of the air flow passage 9 during the pumping operation which is the actual operating state.
0 is closed and pump 3 is operated. By doing so, the siphon passage 5 is filled with water, and the actual lift is reduced and the discharge amount is increased. When pumping a small amount of water such as during the management operation or the standby operation, the on-off valve 10 of the air flow passage 9 is opened to allow the siphon passage 5 to communicate with the atmosphere. By doing so, as shown in the drawing, the air reservoir S is formed in the siphon passage 5 and the siphon is not formed, so that the actual lift Ha becomes large and the discharge amount becomes small. The return valve 8 is closed during the pumping operation and opened during the management operation, and the water discharged to the discharge tank 6 during the management operation is returned to the suction chamber 32 side of the pump 3 through the return passage 7. Here, air may be sucked by the vacuum pump 210 in order to promote siphon formation, and air may be sent in by the compressor 110 in order to prevent siphon formation. In FIG. 1, W1 indicates the water level during the pumping operation, and W2 indicates the water level during the management operation.
【００１１】図２はポンプの性能曲線Ａと揚水通路４や
サイホン通路５を水が流れるときの圧力損失曲線Ｂ１，
Ｂ２を示した特性線図である。この図で判るように、ポ
ンプ性能は一定であるから、吐出量の多い揚水運転時の
吐出量Ｑ１を得るときの実揚程はＨａであり、吐出量の
少ない管理運転時の吐出量Ｑ２を得るときの実揚程はＨ
ｂである。FIG. 2 shows a performance curve A of the pump and a pressure loss curve B1 when water flows through the pumping passage 4 and the siphon passage 5.
It is a characteristic diagram which showed B2. As can be seen from this figure, since the pump performance is constant, the actual lift when obtaining the discharge amount Q1 during the pumping operation with a large discharge amount is Ha and the discharge amount Q2 during the management operation with a small discharge amount is obtained. The actual lift is H
b.
【００１２】[0012]
【発明の効果】本発明によれば、揚水通路やサイホン通
路が大口径であっても、空気管のバルブを開閉制御する
だけでポンプの運転状態を切り換えることができるの
で、ポンプ運転状態の切換えに時間がかからず、しかも
その切換えが容易かつ確実になるという効果がある。According to the present invention, even if the pumping passage or the siphon passage has a large diameter, the operating state of the pump can be switched only by controlling the opening / closing of the valve of the air pipe, so that the operating state of the pump can be switched. There is an effect that it does not take much time and the switching is easy and reliable.
【図１】本発明の実施例による揚水ポンプ装置の説明図
である。FIG. 1 is an explanatory view of a pumping pump device according to an embodiment of the present invention.
【図２】特性線図である。FIG. 2 is a characteristic diagram.
３ ポンプ ４ 揚水通路 ５ サイホン通路 ７ 戻り通路 ８ 戻り弁 ９ 空気流通路 １０ 開閉弁 ３３ 吐出口 ５１ サイホン通路の頂部曲り部 3 Pump 4 Pumping Passage 5 Siphon Passage 7 Return Passage 8 Return Valve 9 Air Flow Passage 10 Opening / Closing Valve 33 Discharge Port 51 Top Bent of Siphon Passage
フロントページの続き (72)発明者 深堀 賢久 大阪府枚方市中宮大池１丁目１番１号 株 式会社クボタ枚方製造所内Front Page Continuation (72) Inventor Kenhisa Fukahori 1-1-1, Nakanomiya Oike, Hirakata City, Osaka Prefecture Kubota Hirakata Manufacturing Company
Claims (1)
イホン通路が接続され、そのサイホン通路の頂部曲り部
に、開閉弁を具備する空気流通路が連通されていると共
に、吐出槽より戻り弁を有する戻り通路がポンプ吸込室
に連通されていることを特徴とする揚水ポンプ装置。1. A siphon passage is connected to a pumping passage communicating with a discharge port of a pump, an air flow passage having an on-off valve is communicated with a top bent portion of the siphon passage, and a return valve from a discharge tank. A pumping pump device characterized in that a return passage having an opening is communicated with a pump suction chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34084091A JP2597258B2 (en) | 1991-12-24 | 1991-12-24 | Pumping pump equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34084091A JP2597258B2 (en) | 1991-12-24 | 1991-12-24 | Pumping pump equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05171661A true JPH05171661A (en) | 1993-07-09 |
| JP2597258B2 JP2597258B2 (en) | 1997-04-02 |
Family
ID=18340794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34084091A Expired - Fee Related JP2597258B2 (en) | 1991-12-24 | 1991-12-24 | Pumping pump equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2597258B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409562A (en) * | 2019-07-03 | 2019-11-05 | 武汉大学 | A kind of the cumulative water plug and pumping method of the ball valve of band control air inflow |
-
1991
- 1991-12-24 JP JP34084091A patent/JP2597258B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409562A (en) * | 2019-07-03 | 2019-11-05 | 武汉大学 | A kind of the cumulative water plug and pumping method of the ball valve of band control air inflow |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2597258B2 (en) | 1997-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |