JP2006307490A

JP2006307490A - Ground installation type water intake apparatus

Info

Publication number: JP2006307490A
Application number: JP2005129583A
Authority: JP
Inventors: Yutaka Oe; 豊大江
Original assignee: Hokuryo Denko Co Ltd
Current assignee: Hokuryo Denko Co Ltd
Priority date: 2005-04-27
Filing date: 2005-04-27
Publication date: 2006-11-09
Anticipated expiration: 2025-04-27
Also published as: JP4565280B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ground installation type water intake apparatus which can take in water or discharge water via a submersible pump, and facilitates movement thereof. <P>SOLUTION: The ground installation type water intake apparatus is formed of: a water intake tank set on the ground, for taking in water from a water intake area via a suction pipe to store the water therein; the submersible pump arranged in the water intake tank; an ejection pipe connected to the submersible pump to discharge the water stored in the water intake tank; an exhausting chamber arranged above the water intake tank, for communicating with the water intake tank via an air intake pipe protruding to the interior thereof; and an injection pipe included in the air intake pipe protruding to the interior of the exhausting chamber with a gap secured with respect to the air intake pipe, and extending toward an opening of the air intake pipe, close to the air discharging chamber. By injecting a water current from the injection pipe to the interior of the exhausting chamber, air in the water intake tank is sucked via the air intake pipe to the interior of the exhausting chamber to negatively pressurize the water intake tank, and water is sucked from the air intake area by suction force of the water intake tank which is negatively pressurized, to thereby discharge the water stored in the water intake tank by the submersible pump. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、河川、用水路、溜池、溜井戸、湖、ダム等の水を陸上に設置した水中ポンプを使用して取水する陸上設置型取水装置に関するものである。 The present invention relates to a land-based water intake device that takes water using a submersible pump in which water such as a river, an irrigation channel, a reservoir, a reservoir, a lake, and a dam is installed on land.

周知の通り、河川、用水路、溜池、溜井戸、湖、ダム等（以下、総称して「取水域」ともいう。）の水を取水して排出する取水装置には、水中に設置される水中設置型と陸上に設置される陸上設置型とがある。そして、水中設置型取水装置では、前記取水域中に水中ポンプを配置して該水中ポンプにより汲み上げて取水・排出するようになっており、陸上設置型取水装置では、陸上に設けられた施設に配置された揚水ポンプにより吸い上げて取水・排出するようになっている。 As is well known, water intake devices that take in and discharge water from rivers, irrigation canals, reservoirs, reservoirs, lakes, dams, etc. (hereinafter collectively referred to as “intake areas”) There are an installation type and a land installation type installed on land. In the submersible water intake system, a submersible pump is arranged in the intake area, and the water is pumped up and discharged by the submersible pump. Water is drawn up and discharged by a pumping pump.

前記陸上設置型取水装置として、例えば、特許文献１には、水源に近い地上部の配管ダクトに水中ポンプを配置し、別に堤内に配置した真空ポンプ、補水槽及び真空排水タンク等の呼び水機器からの抽気ラインによりポンプ揚水の確立を強化して取水する堤防横過揚水装置が開示されている。 As the above-ground installation type water intake device, for example, in Patent Document 1, a submersible pump is arranged in a piping duct on the ground near a water source, and separately from a priming device such as a vacuum pump, a supplementary water tank, and a vacuum drainage tank arranged in a bank. A levee horizontal overpumping device is disclosed that reinforces the establishment of pumping pumping by using a bleed line.

特公平６−１９１５２号公報Japanese Patent Publication No. 6-19152

前記水中設置型取水装置では、水中ポンプにより容易に取水することができるが、水中ポンプを取水域の水中に配置するための土木工事に膨大な費用を必要とし、一度設置すれば移設できないという問題点があった。 In the underwater installation type water intake device, it is possible to easily take water with a submersible pump, but the construction work for placing the submersible pump in the water of the water area requires enormous costs and cannot be relocated once installed. There was a point.

また、前記陸上設置型取水装置に分類できる特許文献１の堤防横過揚水装置では、水中ポンプに加えて取水を吸引するための真空ポンプを必要とするので、当該ポンプ間における配管が複雑となってポンプ設備の保守管理に手間が掛るという問題点があった。 In addition, since the levee horizontal overpumping device of Patent Document 1 that can be classified as the above-ground-type water intake device requires a vacuum pump for sucking water in addition to the submersible pump, piping between the pumps becomes complicated. As a result, there is a problem that it takes time to maintain and manage the pump equipment.

そこで、本発明は、水中ポンプによって取水・排水を実施することができ、しかも、容易に移設することができる陸上設置型取水装置を提供することを技術的課題とするものである。 Then, this invention makes it a technical subject to provide the land-type water intake device which can implement water intake and drainage with a submersible pump, and can be moved easily.

前記技術的課題は、次の通りの本発明によって解決できる。 The technical problem can be solved by the present invention as follows.

即ち、本発明に係る陸上設置型取水装置は、取水域から吸込管を介して水を吸引して溜める陸上に設置された取水槽と該取水槽に内設された水中ポンプと該水中ポンプに接続されて取水槽に溜った水を排出する吐出管と室内に突出した吸気管によって取水槽に連通されて該取水槽の上部に設けられた排気室と該排気室内に突出した前記吸気管に間隙を有して内包されて吸気管の排気室側開口へ向かって延設された噴射管とを備えてなり、噴射管から排気室内へ向かって水流を噴射させて吸気管を介して取水槽内の空気を排気室に吸引して該取水槽内を減圧させ、負圧状態となった取水槽の吸引力によって取水域から水を吸い込んで当該取水槽に溜った水を前記水中ポンプにより排出するものである。 That is, the land-mounted water intake apparatus according to the present invention includes a water intake tank installed on land that sucks and collects water from a water intake area through a suction pipe, a submersible pump installed in the water intake tank, and the submersible pump. A discharge pipe that discharges water accumulated in the intake tank and an intake pipe that protrudes into the chamber communicates with the intake tank and is provided at the upper portion of the intake tank and the intake pipe that protrudes into the exhaust chamber. An injection pipe that is included with a gap and extends toward the exhaust chamber side opening of the intake pipe, and a water flow is jetted from the injection pipe toward the exhaust chamber to intake water tank through the intake pipe The intake air is sucked into the exhaust chamber, the inside of the water intake tank is depressurized, water is sucked in from the water intake area by the suction force of the water intake tank in a negative pressure state, and the water accumulated in the water intake tank is discharged by the submersible pump. To do.

また、本発明は、前記陸上設置型取水装置において、噴射管が吐出管から分岐した導管であり、水中ポンプによって取水槽内の水が噴射管から噴射されるものである。 Moreover, this invention is a conduit | pipe from which the injection pipe branched from the discharge pipe in the said land installation type water intake device, and the water in a water intake tank is injected from an injection pipe by a submersible pump.

さらに、本発明は、前記いずれかの陸上設置型取水装置において、吸込管にはさらに取水域に投入されるストレーナが接続されていると共に該ストレーナには吐出管から分岐した逆流管が接続されており、当該ストレーナが、前記吸込管を接続する吸込室と、該吸込室に併設されて前記逆流管を接続する逆流室と、当該吸込室の取水域側吸込口と当該逆流室の取水域側排出口とが同一方向に開口して共通する開口室を形成して該開口室を前記吸込口と前記排出口とを含んで仕切壁によって二分してなりそれぞれ濾過部によって塞がれた一対の流出入口と、当該流出入口の一方の流出入口には該一方の流出入口を共通して有する前記仕切壁により二分された一方の吸込口と同じく前記仕切壁により二分された一方の排出口とが形成されていると共に前記他方の流出入口には該他方の流出入口を共通して有する前記仕切壁により二分された他方の吸込口と同じく前記仕切壁により二分された他方の排出口とが形成されて前記一方の吸込口を塞いだときには前記他方の吸込口が開くと共に前記他方の吸込口を塞いだときには前記一方の吸込口が開く前記吸込口に設けられた第一逆作動弁と、前記一方の排出口を塞いだときには前記他方の排出口が開くと共に前記他方の排出口を塞いだときには前記一方の排出口が開く前記排出口に設けられた第二逆作動弁とから構成され、前記第一逆作動弁によって一方の吸込口が閉じられたときには前記第二逆作動弁によって一方の排出口が開き、前記第二逆作動弁によって他方の排出口が開かれたときには前記第一逆作動弁によって他方の吸込口が閉じるようになっているものである。 Further, in the present invention, in any one of the above-mentioned land-type water intake devices, the suction pipe is further connected with a strainer to be introduced into the intake area, and the strainer is connected with a backflow pipe branched from the discharge pipe. The strainer is connected to the suction pipe, the reverse flow chamber connected to the suction chamber and connected to the reverse flow pipe, the intake area side suction port of the suction chamber and the intake area side of the reverse flow chamber A pair of discharge openings that are open in the same direction to form a common opening chamber, the opening chamber including the suction opening and the discharge opening is divided into two by a partition wall, each of which is closed by a filtering portion. An outflow inlet, and one outflow inlet of the outflow inlet having one outflow opening divided into two by the partition wall as well as one suction port divided into two by the partition wall having the one outflow inlet in common Once formed The other outflow inlet is formed with the other suction port bisected by the partition wall having the other outflow inlet in common and the other discharge port bisected by the partition wall. When the suction port is closed, the other suction port opens, and when the other suction port is closed, the one suction port opens, and the first reverse operation valve provided in the suction port and the one discharge port are opened. A second reverse operation valve provided at the discharge port that opens when the other discharge port is opened and the other discharge port opens when the other discharge port is closed; When one suction port is closed by the second reverse operation valve, one discharge port is opened. When the other reverse operation valve is opened by the second reverse operation valve, the other suction port is opened by the first reverse operation valve. Mouth closed It is one that is made to so that.

本発明によれば、噴射する水流によって発生する空気流を利用して取水槽を減圧させ、負圧状態の取水槽によって取水域の水を吸引して取水するようにしたので、水中ポンプのみによって取水・排水を実施することができるから、水中ポンプを内蔵した取水装置を取水域中に設けないで陸上に設置することができ、これにより、取水域の土木工事が不要となり、仮設することができるので、容易に移設することができる。 According to the present invention, the intake tank is depressurized using the air flow generated by the jetting water flow, and the water in the intake area is sucked and taken in by the negative pressure intake tank. Since water intake and drainage can be carried out, it is possible to install a water intake device with a built-in submersible pump on the land without providing it in the water intake area. Because it can, it can be moved easily.

以下、本発明の実施の形態を図面に基づき説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

実施の形態１． Embodiment 1 FIG.

図１は本発明の実施の形態に係る陸上設置型取水装置の動作原理を説明する概略縦断面側面図、図２は陸上設置型取水装置の概略縦断面側面図であり、図１において水中ポンプ及び吐出管は省略され、図２において吸気管及び噴射管は省略されている。また、図３〜図５は陸上設置型取水装置の取水・排水動作を説明する概略縦断面側面図である。これらの図において、１は河川（取水域）２近傍の堤地３（図２参照）に設置されて河川２から陸上に連設した吸込管４を介して当該河川水５を陸上に吸引して取水する陸上設置型取水装置（以下、「取水装置」ともいう。）であり、当該取水装置１は、河川水５を吸込管４を介して取水して溜める、水中ポンプ６（図２参照）を内設した取水槽７と、当該水中ポンプ６と、水中ポンプ６に接続されて取水槽７に溜った河川水５を排出する吐出管８（図２参照）と、室内に突出した吸気管９によって取水槽７に連通されて該取水槽７の上部に設けられた排気室10と、排気室10内に突出した吸気管９に間隙を有して内包されて吸気管９の排気室10側開口へ向かって延設された噴射管11と、排気室10の床面から取水槽７に開口して下向きに延設されて噴射管11から噴射された流水を取水槽７に戻す戻し管12と、排気室10の天井に外方に向かって突設されて排気室10に吸引された空気を排気する排気管13とから構成され、前記噴射管11は前記吐出管８から分岐して配管され、前記取水槽７は、図２に示すように、天井に届かない仕切立14によって水中ポンプ６を設置したポンプ室7aと吸込管４が接続される取水室7bとに二分され、前記戻し管12はポンプ室7aに設けられている。また、前記吸込管４の河川側端にはストレーナ15（図２参照）が接続されて該ストレーナ15は河川２に投入されている。 FIG. 1 is a schematic vertical cross-sectional side view for explaining the operating principle of a land-mounted water intake device according to an embodiment of the present invention. FIG. 2 is a schematic vertical cross-sectional side view of the land-mounted water intake device. And the discharge pipe are omitted, and the intake pipe and the injection pipe are omitted in FIG. Moreover, FIGS. 3-5 is a schematic longitudinal cross-sectional side view explaining the water intake / drainage operation | movement of a land installation type water intake device. In these figures, reference numeral 1 denotes a river (water intake area) 2 which is installed in a levee 3 (see FIG. 2) and sucks the river water 5 to the land through a suction pipe 4 connected to the land from the river 2. This is a land-based water intake device (hereinafter also referred to as “water intake device”). The water intake device 1 takes in river water 5 through a suction pipe 4 and stores it in the submersible pump 6 (see FIG. 2). ), A submersible pump 6, a discharge pipe 8 (see FIG. 2) connected to the submersible pump 6 for discharging the river water 5 accumulated in the intake tank 7, and an intake air projecting indoors An exhaust chamber 10 that is communicated with the intake tank 7 by a pipe 9 and provided at the upper part of the intake tank 7 and an intake pipe 9 that protrudes into the exhaust chamber 10 with a gap and is included in the exhaust chamber of the intake pipe 9. The injection pipe 11 extended toward the opening on the 10 side, and opened from the floor surface of the exhaust chamber 10 to the intake tank 7 and extended downward. From a return pipe 12 for returning flowing water jetted from the jet pipe 11 to the water tank 7 and an exhaust pipe 13 projecting outward from the ceiling of the exhaust chamber 10 and exhausting the air sucked into the exhaust chamber 10 The injection pipe 11 is branched from the discharge pipe 8, and the water intake tank 7 has a pump chamber 7a in which the submersible pump 6 is installed by a partition 14 which does not reach the ceiling, as shown in FIG. The return pipe 12 is divided into a water intake chamber 7b to which the suction pipe 4 is connected, and the return pipe 12 is provided in the pump chamber 7a. Further, a strainer 15 (see FIG. 2) is connected to the river side end of the suction pipe 4, and the strainer 15 is introduced into the river 2.

次に、動作について説明する。 Next, the operation will be described.

先ず、図３に示すように、取水槽７のポンプ室7aには噴射管11から流水を噴射させるために水を溜めておく。次いで、噴射管11が分岐した位置の吐出管開口側に設けられた吐出バルブ16を閉じた状態で水中ポンプ６を起動させ、ポンプ室7a内の溜水を吸い上げて噴射管11から高速な水流として排気室10内へ向かって噴射させる。これにより、図４に示すように、吸気管９内の空気が水流に巻き込まれて排気室10へ押し出され、吸気管９内の取水槽７側が減圧されて負圧になり、吸気管９が開口した取水槽７内の空気が吸気管９内へ連続して吸い込まれて取水槽７内の圧力が除々に低下する。この結果、取水槽７内が減圧されて負圧となり、負圧状態となった取水槽７の吸引力によって大気圧に押されている河川水面から吸込管４を通って河川水５が取水され、取水槽７の取水室7bに吸い上げられる。そして、図５に示すように、取水室7bが河川水５で満たされ仕切立14を超えてポンプ室7aに流れ込み、当該ポンプ室7aも河川水５によって満たされて取水槽７全体が満タンになれば、図２に示すように、前記吐出バルブ16が開かれて取水槽７に溜った水５が吐出管８から外方へ排出される。一方、吸気管９から排気室10内へ押し出された空気は排気管13より排気され、噴射管11より排気室10内へ放出された水は戻し管12を通ってポンプ室7a内へ戻され、排気中はポンプ室7a内の水位が低下しないように循環している。この一連の動作によって連続して河川２より取水して取水槽７に溜った水５を水中ポンプ６により排水している。 First, as shown in FIG. 3, water is stored in the pump chamber 7 a of the water intake tank 7 in order to inject running water from the injection pipe 11. Next, the submersible pump 6 is started up with the discharge valve 16 provided on the discharge pipe opening side at the position where the injection pipe 11 is branched, and the water stored in the pump chamber 7a is sucked up so that the high-speed water flow from the injection pipe 11 As shown in FIG. As a result, as shown in FIG. 4, the air in the intake pipe 9 is entrained in the water flow and pushed out into the exhaust chamber 10, the intake tank 7 side in the intake pipe 9 is depressurized to a negative pressure, and the intake pipe 9 is The air in the intake tank 7 that has been opened is continuously sucked into the intake pipe 9, and the pressure in the intake tank 7 gradually decreases. As a result, the inside of the intake tank 7 is depressurized to become negative pressure, and the river water 5 is taken from the river water surface that is pushed to the atmospheric pressure by the suction force of the intake tank 7 in the negative pressure state through the suction pipe 4. The water is sucked into the water intake chamber 7b of the water intake tank 7. Then, as shown in FIG. 5, the intake chamber 7b is filled with the river water 5 and flows into the pump chamber 7a beyond the partition wall 14, and the pump chamber 7a is also filled with the river water 5 so that the entire intake tank 7 is fully filled. Then, as shown in FIG. 2, the discharge valve 16 is opened, and the water 5 accumulated in the water intake tank 7 is discharged from the discharge pipe 8 to the outside. On the other hand, the air pushed out from the intake pipe 9 into the exhaust chamber 10 is exhausted from the exhaust pipe 13, and the water discharged from the injection pipe 11 into the exhaust chamber 10 is returned to the pump chamber 7a through the return pipe 12. During exhaust, the water level in the pump chamber 7a is circulated so as not to decrease. By this series of operations, water 5 continuously taken from the river 2 and accumulated in the water intake tank 7 is drained by the submersible pump 6.

本実施の形態では、噴射管11から排気室10内へ向かって水流を噴射させて取水槽７内の空気を吸気管９から排気室10に吸引して取水槽７を減圧させ、負圧状態となった取水槽７の吸引力によって河川２から水５を吸い込み、取水槽７に溜った取水５を水中ポンプ６によって排水しているので、水中ポンプ６を内蔵した取水装置１を河川内に設けないで陸上に設置することができ、これにより、仮設することができるので、容易に移設することができる。 In the present embodiment, a water flow is jetted from the injection pipe 11 into the exhaust chamber 10 to suck the air in the water intake tank 7 from the intake pipe 9 into the exhaust chamber 10, thereby reducing the pressure of the water intake tank 7, and a negative pressure state. Since the water 5 is sucked in from the river 2 by the suction force of the water intake tank 7 and the water 5 accumulated in the water intake tank 7 is drained by the submersible pump 6, the water intake device 1 incorporating the submersible pump 6 is placed in the river. Since it can be installed on land without providing it, it can be temporarily installed, so it can be moved easily.

実施の形態２． Embodiment 2. FIG.

本実施の形態は前記実施の形態１に係る陸上設置型取水装置の具体例であり、図６は内部を透視して一部断面にて示す陸上設置型取水装置の平面図、図７は内部を透視して一部断面にて示す陸上設置型取水装置の側面図、図８は内部を透視して一部断面にて示す陸上設置型取水装置の正面図、図９及び図１０は図２に図示するストレーナの透視斜視図、図１１〜図１６はストレーナの動作を説明する図であり、図１１及び図１４は内部を透視して一部断面にて示すストレーナの正面図、図１２及び図１５は内部を透視して一部断面にて示すストレーナの吸込室側側面図、図１３及び図１６は内部を透視して一部断面にて示すストレーナの逆流室側側面図である。これらの図において、図１〜図５と同一符号は同一又は相当部分を示す。 This embodiment is a specific example of the land-mounted water intake device according to the first embodiment, FIG. 6 is a plan view of the land-mounted water intake device shown in a partial cross section through the inside, and FIG. FIG. 8 is a front view of the land-type water intake device shown in a partial cross-section, and FIG. 9 and FIG. FIG. 11 to FIG. 16 are diagrams for explaining the operation of the strainer. FIGS. 11 and 14 are front views of the strainer shown in a partial cross-section through the inside, FIG. FIG. 15 is a side view of the suction chamber side of the strainer shown in a partial cross section through the inside, and FIGS. 13 and 16 are side views of the back flow chamber side of the strainer shown in a partial cross section through the inside. In these drawings, the same reference numerals as those in FIGS. 1 to 5 denote the same or corresponding parts.

本実施の形態に係る取水装置１は、排気室10の上部に配管室17が設けられ、排気室10から配管室17に渡る背後には取水槽７のポンプ室7aへ噴射水を供給する補水槽18が設けられ、途中に電動給水弁19を配設した給水管20によって取水槽７のポンプ室7a側と接続されている。そして、配管室17においては、密封状態で排気室10を貫いて突出した吐出管８から分岐した導管21が電動噴射弁22を介して噴射管11に接続され、当該分岐位置から吐出管開口側の吐出管８には吐出バルブ（電動吐出弁）16が設けられ、当該分岐位置よりさらに別途逆流用導管23が分岐して該逆流用導管23には逆流用電動弁24が配設されている。また、排気管13の途中には排気用電動弁25が設けられている。なお、26は空気抜弁である。 In the water intake device 1 according to the present embodiment, a piping chamber 17 is provided in the upper part of the exhaust chamber 10, and behind the cross from the exhaust chamber 10 to the piping chamber 17, the supplementary water is supplied to the pump chamber 7 a of the water intake tank 7. A water tank 18 is provided, and is connected to the pump chamber 7a side of the water intake tank 7 by a water supply pipe 20 provided with an electric water supply valve 19 in the middle. In the piping chamber 17, a conduit 21 branched from the discharge pipe 8 protruding through the exhaust chamber 10 in a sealed state is connected to the injection pipe 11 via the electric injection valve 22, and the discharge pipe opening side from the branch position The discharge pipe 8 is provided with a discharge valve (electric discharge valve) 16. A separate backflow conduit 23 is further branched from the branch position, and a backflow motor valve 24 is provided in the backflow conduit 23. . Further, an exhaust motor-operated valve 25 is provided in the middle of the exhaust pipe 13. Reference numeral 26 denotes an air vent valve.

前記取水装置１の逆流用導管23には吸込管４と平行して連設された逆流管27が配管されており、吸込管４と逆流管27とは河川２に投入したストレーナ15に接続されている。 A reverse flow pipe 27 connected in parallel with the suction pipe 4 is connected to the reverse flow conduit 23 of the water intake device 1, and the suction pipe 4 and the reverse flow pipe 27 are connected to a strainer 15 introduced into the river 2. ing.

前記ストレーナ15は、前記吸込管４が接続されて該吸込管４へ吸い込まれる河川水５で満たされる吸込室28と、吸込室28に併設されて、前記逆流管27が接続されて該逆流管27から排出される取水槽７からの逆流水で満たされる逆流室29と、吸込室28の取水域側吸込口30と逆流室29の取水域側排出口31とが同一方向に開口して共通する空間となっている開口室32とを備え、当該開口室32は吸込口30と排出口31とを含んで開口室32から外方まで延設された仕切壁33によって二分されて一対の流出入口34,35が形成されており、流出入口34,35の一方の流出入口34においては該一方の流出入口34を共通して有するように前記仕切壁33により二分された一方の吸込口36（図１２参照）と同じく前記仕切壁33により二分された一方の排出口37（図１３参照）とが形成され、他方の流出入口35においては該他方の流出入口35を共通して有するように前記仕切壁33により二分された他方の吸込口38（図１２参照）と同じく前記仕切壁33により二分された他方の排出口39（図１３参照）とが形成され、前記吸込口30には一方の吸込口36を塞いだときには他方の吸込口38が開き、他方の吸込口38を塞いだときには一方の吸込口36が開く第一逆作動弁40が設けられ、前記排出口31には一方の排出口37を塞いだときには他方の排出口39が開き、他方の排出口39を塞いだときには一方の排出口37が開く第二逆作動弁41が設けられており、前記流出入口34,35はそれぞれ河川２の塵等を濾す濾過板（濾過部）42,43によって塞がれている。前記第一・第二逆作動弁40,41は断面の一辺が同一長さのＬ字型に曲げられたＬ型板形状であって、隅角を回動軸として吸込口30と排出口31とにおける仕切壁33の内方側端面にそれぞれ逆向きで軸着されており、第一逆作動弁40によって一方の吸込口36が閉じた場合には第二逆作動弁41によって一方の排出口37が開き、第一逆作動弁40によって一方の吸込口36が開いた場合には第二逆作動弁41によって一方の排出口37が閉じるようになっている。 The strainer 15 is connected to the suction chamber 28 that is filled with the river water 5 that is connected to the suction pipe 4 and sucked into the suction pipe 4, and the reverse flow pipe 27 is connected to the reverse flow pipe 27. The reverse flow chamber 29 filled with the reverse flow water from the intake tank 7 discharged from 27, the intake area side suction port 30 of the suction chamber 28 and the intake area side discharge port 31 of the reverse flow chamber 29 open in the same direction and are shared. An opening chamber 32 that is a space to be opened, and the opening chamber 32 includes a suction port 30 and a discharge port 31 and is divided into two by a partition wall 33 extending outward from the opening chamber 32. An inlet 34, 35 is formed, and one of the outlets 34, 35 has one inlet 36 (one of the inlets 36 divided by the partition wall 33 so as to have the one outlet 34 in common. As shown in FIG. 12, one discharge port 37 (see FIG. 13) divided into two by the partition wall 33 is formed. In the same manner as the other suction port 38 (see FIG. 12) bisected by the partition wall 33 so as to have the other outflow inlet 35 in common, the other outlet bisected by the partition wall 33 is provided. An outlet 39 (see FIG. 13) is formed, and when the one suction port 36 is closed, the other suction port 38 opens. When the other suction port 38 is closed, one suction port 36 is opened. A first reverse operation valve 40 that is opened is provided, and when the one discharge port 37 is closed, the other discharge port 39 is opened, and when the other discharge port 39 is closed, the one discharge port 37 is opened. A second reverse operation valve 41 is provided, and the outflow ports 34 and 35 are respectively closed by filter plates (filter units) 42 and 43 for filtering dust and the like in the river 2. The first and second reverse actuating valves 40 and 41 are L-shaped plate shapes whose one side is bent into an L-shape with the same length, and have a suction port 30 and a discharge port 31 with corners as pivot axes. When the first reverse operation valve 40 closes one of the suction ports 36, the second reverse operation valve 41 closes one of the discharge ports. When one of the suction ports 36 is opened by the first reverse operation valve 40, one discharge port 37 is closed by the second reverse operation valve 41.

前記電動吐出弁16と電動給水弁19と電動噴射弁22と逆流用電動弁24と排気用電動弁25とは閉じられており、取水装置１の駆動により、ポンプ室7aの溜水が所定量未満であれば、電動給水弁19が開いて給水管20を通って補水槽18からポンプ室7aへ噴射用の溜水が補充され、駆動中、所定量を満たすように給水される。 The electric discharge valve 16, the electric water supply valve 19, the electric injection valve 22, the reverse flow electric valve 24, and the exhaust electric valve 25 are closed, and when the water intake device 1 is driven, a predetermined amount of water is stored in the pump chamber 7a. If it is less than that, the electric water supply valve 19 is opened and the water for injection is replenished from the auxiliary water tank 18 to the pump chamber 7a through the water supply pipe 20, and water is supplied so as to satisfy a predetermined amount during driving.

また、前記ストレーナ15においては、図９に示すように、第一逆作動弁40によって吸込口30における一方の吸込口36が閉じられ、第二逆作動弁41によって排出口31における他方の排出口39が閉じられている。 Further, in the strainer 15, as shown in FIG. 9, one suction port 36 in the suction port 30 is closed by the first reverse operation valve 40, and the other discharge port in the discharge port 31 is closed by the second reverse operation valve 41. 39 is closed.

続いて、水中ポンプ６を起動させる起動ボタンを押せば、電動噴射弁22と排気用電動弁25とが開いて水中ポンプ６によってポンプ室7aから汲み上げられた噴射用の溜水が、図４及び図５に示すように、吐出管８から導管21を通って噴射管11から排気室10内に向かって噴射され、取水槽７から吸気管９を通って排気室10へ吸引された空気が排気管13から外方へ排気される。 Subsequently, when the start button for starting the submersible pump 6 is pushed, the electric injection valve 22 and the exhaust electric valve 25 are opened, and the accumulated water for injection pumped up from the pump chamber 7a by the submersible pump 6 is shown in FIG. As shown in FIG. 5, the air injected from the discharge pipe 8 through the conduit 21 into the exhaust chamber 10 from the injection pipe 11 and sucked from the intake tank 7 through the intake pipe 9 into the exhaust chamber 10 is exhausted. It is exhausted outward from the tube 13.

これにより、河川水５が、図１２に示すように、ストレーナ15の他方の流出入口35に設けられた濾過板43を通過して他方の流出入口35から他方の吸込口38を通って吸込室28を経由して吸込管４に吸い込まれる。そして、図２に示すように、取水槽７が河川水５で満たされれば、電動噴射弁22と排気用電動弁25とが閉じ、電動吐出弁16が開いて取水槽７に溜った河川水５が吐出管開口から排出される。 As a result, as shown in FIG. 12, the river water 5 passes through the filter plate 43 provided at the other outflow port 35 of the strainer 15 and passes through the other intake port 38 from the other outflow port 35 to the suction chamber. It is sucked into the suction pipe 4 via 28. Then, as shown in FIG. 2, when the water intake tank 7 is filled with the river water 5, the electric injection valve 22 and the exhaust electric valve 25 are closed, and the electric discharge valve 16 is opened to collect the river water accumulated in the water intake tank 7. 5 is discharged from the discharge pipe opening.

前記逆流用電動弁24はタイマーにより開閉され、例えば、初回逆流用電動弁24が開いた場合には、逆流用電動弁24の開作動に連動して前記第一逆作動弁40が回動して該第一逆作動弁40によって一方の吸込口36が開き（図１０及び図１５参照）、前記第二逆作動弁41が回動して該第二逆作動弁41によって他方の排出口39が開く（図１０及び図１６参照）。 The backflow motor valve 24 is opened and closed by a timer.For example, when the first backflow motor valve 24 is opened, the first back valve 40 rotates in conjunction with the opening operation of the backflow motor valve 24. The first reverse operation valve 40 opens one suction port 36 (see FIGS. 10 and 15), the second reverse operation valve 41 rotates and the second reverse operation valve 41 rotates the other discharge port 39. Opens (see FIGS. 10 and 16).

従って、図１５に示すように、河川水５がストレーナ15の一方の流出入口34に設けられた濾過板42を通過して一方の流出入口34から一方の吸込口36を通って吸込室28を経由して吸込管４に吸い込まれ、図１６に示すように、取水槽７からの逆流水が吐出管８から逆流用導管23を通って逆流管27から逆流室29内に放出され、さらに、他方の排出口39を通って他方の流出入口35から該他方の流出入口35に設けられた濾過板43を通過して河川２に放出され、これにより、逆流水によって当該濾過板43に付着した塵等が河川中に排出される。そして、前記逆流用電動弁24が開いている状態においては、タイマーにより前記第一逆作動弁40と前記第二逆作動弁41とが逆回動動作している。 Accordingly, as shown in FIG. 15, the river water 5 passes through the filter plate 42 provided in one outflow inlet 34 of the strainer 15, passes through the one intake port 36 from the one outflow inlet 34, and enters the suction chamber 28. As shown in FIG. 16, the backflow water from the water intake tank 7 is discharged from the discharge pipe 8 through the backflow conduit 23 into the backflow chamber 29 through the backflow pipe 27, It passes through the other discharge port 39 and passes through the filter plate 43 provided in the other outflow port 35 from the other outflow port 35 to be discharged into the river 2, thereby adhering to the filter plate 43 by the backflow water. Dust is discharged into the river. In the state in which the backflow electric valve 24 is open, the first reverse operation valve 40 and the second reverse operation valve 41 are reversely rotated by a timer.

このように、第一逆作動弁40によって一方の吸込口36が閉じられたときには第二逆作動弁41によって一方の排出口37が開き、第二逆作動弁41によって他方の排出口39が開かれたときには第一逆作動弁40の回動によって他方の吸込口38が閉じ、第一逆作動弁40と第二逆作動弁41とが逆動作するようになっているので、濾過板42,43が交互に洗浄される。 Thus, when one suction port 36 is closed by the first reverse operation valve 40, one discharge port 37 is opened by the second reverse operation valve 41, and the other discharge port 39 is opened by the second reverse operation valve 41. When the first reverse operation valve 40 is turned, the other suction port 38 is closed and the first reverse operation valve 40 and the second reverse operation valve 41 are operated in reverse, so that the filtration plates 42, 43 are washed alternately.

本実施の形態によれば、陸上設置型取水装置１が陸上設備でありながら、ポンプ呼び水用の真空ポンプ設備が不要であり、河川内に取水槽７を設置する必要がないので、そのための河川内土木工事が不要となる。また、取水が不要な時期においては簡単に取り外して移設できる。また、本実施の形態におけるストレーナ15によれば、濾過部42,43を通る流水が交互に逆流するようになっているので、取水・洗浄を交互に実施することができるから、濾過部42,43が塵芥で詰まることなく、長く取水を続けることができる。 According to the present embodiment, the on-site water intake device 1 is an on-shore facility, but no vacuum pump facility for pump priming is required, and there is no need to install the intake tank 7 in the river. In-house civil engineering work becomes unnecessary. In addition, it can be easily removed and moved during periods when water intake is unnecessary. Further, according to the strainer 15 in the present embodiment, the flowing water passing through the filtration units 42 and 43 is alternately backflowed, so that water intake and washing can be performed alternately. Water can be taken for a long time without 43 being clogged with dust.

図１７は噴射管の縦断面図であり、図１〜図１６を参照して陸上設置型取水装置１の実施例について説明する。 FIG. 17 is a vertical cross-sectional view of the injection pipe, and an embodiment of the land-type water intake device 1 will be described with reference to FIGS.

外形が幅76cm×奥行き82cm×高さ150cmのボックスに内径100mmの吸込管４，吐出管８及び逆流管27と、先端側が内径27.6mmの吸気管９（図１７参照）と、外径21.7mm及び内径16.1mmの噴射管11（図１７参照）とを配管した陸上設置型取水装置１（図６〜図８参照）を使用し、取水槽７には口径50mm、吐出量0.12〜0.38m^３/min、全揚程57.0〜32.5m、出力3.7kw、電圧200Ｖ、電流16.8Ａ、回転数3600rpm、周波数60Hzの水中タービンポンプ６を内設した。 A box with a width of 76cm x depth of 82cm x height of 150cm, a suction pipe 4, discharge pipe 8 and backflow pipe 27 with an inner diameter of 100mm, a suction pipe 9 with an inner diameter of 27.6mm (see Fig. 17), and an outer diameter of 21.7mm And a land-mounted water intake device 1 (see FIGS. 6 to 8) piped with an injection pipe 11 (see FIG. 17) having an inner diameter of 16.1 mm. The intake tank 7 has a diameter of 50 mm and a discharge amount of 0.12 to 0.38 m ^3. An underwater turbine pump 6 having a total lift of 57.0 to 32.5 m, an output of 3.7 kw, a voltage of 200 V, a current of 16.8 A, a rotation speed of 3600 rpm, and a frequency of 60 Hz was installed internally.

取水装置１を駆動させ、噴射速度18.8m/sec（60Hz時）で噴射管11から流水を噴射させ、河川水５を取水したところ、電流値14.4Ａにおいて、１分45秒後の吸込揚程が河川２の水面から上方に向かって6.0mの高さに達した。このときの水中タービンポンプ６の吐出圧力は0.33Ｍpaであり、吸気管９からの排気量は平均0.118 m^３/min、吸込管４の吸込圧力は−0.06Ｍpaであった。 When the water intake device 1 is driven, running water is injected from the injection pipe 11 at an injection speed of 18.8 m / sec (at 60 Hz), and the river water 5 is taken, the suction head after 1 minute 45 seconds is obtained at a current value of 14.4 A. It reached a height of 6.0m upward from the water surface of river 2. At this time, the discharge pressure of the submerged turbine pump 6 was 0.33 MPa, the displacement from the intake pipe 9 was 0.118 m ³ / min on average, and the suction pressure of the suction pipe 4 was −0.06 MPa.

本発明によれば、陸上設置型取水装置を簡易に設置することができるから、消融雪設備、かんがい用用水設備、排水設備、その他、揚水設備として利用できる。 According to the present invention, since a land-type water intake device can be easily installed, it can be used as a snow-melting snow facility, an irrigation water facility, a drainage facility, and other pumping facilities.

従って、本発明の産業上利用性は非常に高いといえる。 Therefore, it can be said that the industrial applicability of the present invention is very high.

本発明の実施の形態に係る陸上設置型取水装置の動作原理を説明する概略縦断面側面図である。It is a schematic longitudinal cross-sectional side view explaining the operating principle of the land-mounted water intake apparatus which concerns on embodiment of this invention. 陸上設置型取水装置の概略縦断面側面図である。It is a general | schematic longitudinal cross-section side view of a land installation type water intake device. 陸上設置型取水装置の取水・排水動作を説明する概略縦断面側面図である。It is a schematic longitudinal cross-sectional side view explaining the water intake / drainage operation | movement of a land-type water intake apparatus. 陸上設置型取水装置の取水・排水動作を説明する概略縦断面側面図である。It is a schematic longitudinal cross-sectional side view explaining the water intake / drainage operation | movement of a land-type water intake apparatus. 陸上設置型取水装置の取水・排水動作を説明する概略縦断面側面図である。It is a schematic longitudinal cross-sectional side view explaining the water intake / drainage operation | movement of a land-type water intake apparatus. 内部を透視して一部断面にて示す陸上設置型取水装置の平面図である。It is a top view of the land-type water intake apparatus shown in partial cross section through the inside. 内部を透視して一部断面にて示す陸上設置型取水装置の側面図である。It is a side view of the land-type water intake device shown in a partial cross section through the inside. 内部を透視して一部断面にて示す陸上設置型取水装置の正面図である。It is a front view of the on-shore installation type water intake apparatus shown in partial cross section through the inside. 図２に図示するストレーナの透視斜視図である。FIG. 3 is a perspective view of the strainer illustrated in FIG. 2. 図２に図示するストレーナの透視斜視図であり。FIG. 3 is a perspective view of the strainer illustrated in FIG. 2. 内部を透視して一部断面にて示すストレーナの正面図である。It is a front view of the strainer shown in a partial cross section through the inside. 内部を透視して一部断面にて示すストレーナの吸込室側側面図である。It is a suction chamber side side view of the strainer shown in a partial cross section through the inside. 内部を透視して一部断面にて示すストレーナの逆流室側側面図である。It is a backflow chamber side side view of the strainer shown in a partial cross section through the inside. 内部を透視して一部断面にて示すストレーナの正面図である。It is a front view of the strainer shown in a partial cross section through the inside. 内部を透視して一部断面にて示すストレーナの吸込室側側面図である。It is a suction chamber side side view of the strainer shown in a partial cross section through the inside. 内部を透視して一部断面にて示すストレーナの逆流室側側面図である。It is a backflow chamber side side view of the strainer shown in a partial cross section through the inside. 実施例における噴射管の縦断面図である。It is a longitudinal cross-sectional view of the injection pipe in an Example.

Explanation of symbols

１取水装置（陸上設置型取水装置）
２河川（取水域）
３堤地
４吸込管
５河川水（水、取水）
６水中ポンプ
７取水槽
８吐出管
９吸気管
１０排気室
１１噴射管
１５ストレーナ
１６吐出バルブ（電動吐出弁）
２２電動噴射弁
２４逆流用電動弁
２７逆流管
２８吸込室
２９逆流室
３０吸込口
３１排出口
３２開口室
３３仕切壁
３４一方の流出入口
３５他方の流出入口
３６一方の吸込口
３７一方の排出口
３８他方の吸込口
３９他方の排出口
４０第一逆作動弁
４１第二逆作動弁
４２、４３濾過板（濾過部） 1 Intake device (onshore installation type intake device)
2 River (intake area)
3 Embankment 4 Suction pipe 5 River water (water, water intake)
6 Submersible pump 7 Intake tank 8 Discharge pipe 9 Intake pipe 10 Exhaust chamber 11 Injection pipe 15 Strainer 16 Discharge valve (electric discharge valve)
22 Electric injection valve 24 Backflow motor valve 27 Backflow pipe 28 Suction chamber 29 Backflow chamber 30 Suction port 31 Discharge port 32 Opening chamber 33 Partition wall 34 One outflow inlet 35 Other outflow inlet 36 One suction port 37 One discharge port 38 Other suction port 39 Other discharge port 40 First reverse operation valve 41 Second reverse operation valve 42, 43 Filtration plate (filter part)

Claims

A water intake tank installed on land that sucks and collects water from a water intake area through a suction pipe, a submersible pump installed in the water intake tank, and a discharge that is connected to the submersible pump and discharges water accumulated in the water intake tank. An exhaust chamber of the intake pipe that is communicated to the intake tank by a pipe and an intake pipe that protrudes into the chamber and is provided with a gap between the exhaust chamber provided at the upper portion of the intake tank and the intake pipe that protrudes into the exhaust chamber. And an injection pipe extending toward the side opening, injecting water from the injection pipe into the exhaust chamber and sucking air in the intake tank into the exhaust chamber through the intake pipe. A land-based water intake device, wherein the water is sucked in from the water intake area by the suction force of the water intake tank that has been depressurized and the water collected in the water intake tank is discharged by the submersible pump.

The land-mounted water intake device according to claim 1, wherein the injection pipe is a conduit branched from the discharge pipe, and water in the water intake tank is injected from the injection pipe by a submersible pump.

A strainer to be introduced into the intake area is further connected to the suction pipe, and a backflow pipe branched from the discharge pipe is connected to the strainer. The strainer includes a suction chamber that connects the suction pipe, A reverse flow chamber that is connected to the suction chamber and connects the reverse flow pipe, and the intake area side suction port of the suction chamber and the intake area side discharge port of the reverse flow chamber open in the same direction to form a common opening chamber. The opening chamber is divided into two parts by a partition wall including the suction port and the discharge port, each of which is closed by a filtering portion, and one of the outflow ports has one of the outflow ports. A suction port divided into two by the partition wall having a common outlet and a discharge port divided into two by the partition are formed, and the other outlet has the other outlet. Before having in common When the other suction port divided into two by the partition wall and the other discharge port divided into two by the partition wall are formed to block the one suction port, the other suction port opens and the other suction port The first reverse operation valve provided at the suction port that opens the one suction port when the first discharge port is closed, and the other discharge port opens and the other discharge port is blocked when the one discharge port is closed. Sometimes, the one reverse opening is provided with a second reverse operation valve provided at the discharge opening, and when one suction opening is closed by the first reverse operation valve, the second reverse operation valve The land-mounted water intake device according to claim 1 or 2, wherein when the discharge port is opened and the other discharge port is opened by the second reverse operation valve, the other intake port is closed by the first reverse operation valve.