JP2018080563A - Water reservoir for water supply in case of disaster - Google Patents

Water reservoir for water supply in case of disaster Download PDF

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JP2018080563A
JP2018080563A JP2016233459A JP2016233459A JP2018080563A JP 2018080563 A JP2018080563 A JP 2018080563A JP 2016233459 A JP2016233459 A JP 2016233459A JP 2016233459 A JP2016233459 A JP 2016233459A JP 2018080563 A JP2018080563 A JP 2018080563A
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water
tank
plate
pipe
center
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JP6244572B1 (en
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英之 小笠原
Hideyuki Ogasawara
英之 小笠原
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OGASAWARA KOGYOSHO KK
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    • 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
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Abstract

PROBLEM TO BE SOLVED: To provide a structure capable of swapping water in a large and short body water storage tank having a free water surface with as little water supply as possible.SOLUTION: A water reservoir in which a center pipe extending in a vertical direction is provided at a center of a tank, and the center pipe is divided into upper and lower two portions, and the upper portion is used for outflow and the lower portion is used for inflow. In the upper portion, an inflow pipe penetrates a top plate or a side plate, and then is connected laterally to the upper portion. In the lower portion, a water supply outlet outer pipe penetrates the top plate and is laterally connected to the lower portion. A submersible pump is charged inside the water supply outlet outer pipe, a submersible pump outlet is connected to the water supply outlet outer pipe and is taken out to the outside of the tank through the water supply outlet outer pipe. An upper end of the upper portion of the center pipe is formed into a substantially spherical shape having a straightening plate inside, a large number of holes are made in a surface thereof, and water is injected in all directions from there to flow into the tank. A lower end of the lower portion is connected to a center of a composite trumpet-shaped plate facing toward a bottom plate, and water is passed through multiple straightening plates inside the trumpet, guided through the center pipe lower portion, and then allowed to flow out.SELECTED DRAWING: Figure 1

Description

本発明は災害時に飲料水を確保するため、水道管の途中に設置する飲料水用の貯水槽に関するものである。  The present invention relates to a drinking water storage tank installed in the middle of a water pipe in order to secure drinking water in the event of a disaster.

従来の災害時水道用貯水槽は横型で細長い形状で、入口管と出口管を両側にもうけ、穴開き管を配位置したりタンクの途中に仕切り板を数枚取付けたり、水の流れを仕切り板で仕切り、多段パスで通したりして、水の入れ替わりを促進する方法が提案されている。  Conventional water tanks for disaster water supply are horizontal and elongated, with inlet and outlet pipes on both sides, perforated pipes installed, several partition plates installed in the middle of the tank, and water flow divided A method of promoting the replacement of water by partitioning with a plate and passing through a multi-stage path has been proposed.

特開２００９−２６４０９８号公報  JP 2009-264098 A 特開昭５７−１３３８８１号公報  JP 57-133881 A 特開２０００−６４３７０号公報  JP 2000-64370 A 実公昭６０−２０６８７号公報  Japanese Utility Model Publication No. 60-20687 実公平３−２９４２１号公報  Japanese Utility Model Publication No. 3-29421 特許第３０５９９７８号公報  Japanese Patent No. 3059978 特許第３１９０８２３号公報  Japanese Patent No. 3190823 特開平１１−３５０５４４号公報  JP 11-350544 A 実公昭６３−６４６９３号公報  Japanese Utility Model Publication No. 63-64693 特許第３５３２３２６号公報  Japanese Patent No. 3532326 特許第５４２７１４６号公報  Japanese Patent No. 5427146

従来の発明の貯水槽は小径、横長であるため、内部の混合が少なく、入れ替わりに対しては有利に働く形状であったが、本発明の貯水槽は地上式の立型の自由水面式であり、安定を保つためにタンクを長くすることができず、胴を太く長さを短くした形状とせねばならない。そのため、内部で速い中央部分と遅い内壁部分で流れの分離が起こり従来の方法では満足できる水の入れ替わりを達成することができない。地上式の貯水槽では流出管がタンク下部に取付けてあり、流出管が損傷するとタンク内の水が流出してしまう。そこで給水を遮断する弁を取付けて、水が流出するための防止対策を講じねばならなかった。このため導入コストが高くなり、メンテナンスも必要であった。
又、地震時に出口配管損傷の影響を受けない為には、流出管を天板から取り出す必要があった。さらに、自由水面の持つ水頭圧しか送水圧を得られず、据付場所が高低差のある場所に限られると言う欠点があった。Since the water tank of the conventional invention has a small diameter and a horizontally long shape, there is little internal mixing, and it has a shape that works favorably for replacement, but the water tank of the present invention is a ground type vertical free water surface type In order to maintain stability, the tank cannot be lengthened, and the body must be thick and the length shortened. Therefore, flow separation occurs in the fast central portion and the slow inner wall portion inside, and satisfactory water replacement cannot be achieved by the conventional method. In the above-ground water tank, the outflow pipe is attached to the lower part of the tank, and if the outflow pipe is damaged, the water in the tank will flow out. Therefore, it was necessary to install a valve to shut off the water supply and take preventive measures to prevent the water from flowing out. For this reason, the introduction cost was high and maintenance was also necessary.
Moreover, in order not to be affected by the outlet piping damage at the time of the earthquake, it was necessary to take out the outflow pipe from the top plate. Furthermore, only the water head pressure of the free water surface can be obtained, and there is a drawback that the installation location is limited to a location with a height difference.

本発明は、大径短胴長のタンクでも短時間で水の入れ替わりを達成することを目的とするものである。  An object of the present invention is to achieve water replacement in a short time even in a tank with a large diameter and a short trunk length.

本発明は上記目的を達成するため、両端を板で閉止し円筒又は角型で、自由水面を有する貯水槽において、給水の取り出しを天板又は、側板上部から取り出せば、地震時に配管が損傷してもタンク内の水が流出することがない。そこで、給水の取り出しには水中ポンプを使い動力で取り出すこととする。又、ポンプを使うことにより送水側を加圧できることになり、据付場所を選ばず水の供給が可能となる。給水の流出管は、外管と内管の２重管とし、外管内に水中ポンプを設置し、内管に水中ポンプ出口口を接続し、流出させる。タンク内の循環を保つため、タンク中心に上下に伸びるセンターパイプを設け、板で仕切って上槽と下槽の２槽に分け、上槽を流入口、下槽を流出用として使い、上槽の上端は、天板の手前で、略球形の多数の穴開き流出口とする事により、全方向に同時に噴出させるようにしてある。  In order to achieve the above object, in the water tank having both ends closed with plates and cylindrical or square and having a free water surface, if the water supply is taken out from the top plate or the upper side plate, the piping will be damaged during an earthquake. However, the water in the tank does not flow out. Therefore, the water supply is taken out with power using a submersible pump. Moreover, the water supply side can be pressurized by using a pump, and water can be supplied regardless of the installation location. The water supply outflow pipe is a double pipe consisting of an outer pipe and an inner pipe. A submersible pump is installed in the outer pipe, and an outlet of the submersible pump is connected to the inner pipe to let it flow out. In order to maintain circulation in the tank, a center pipe that extends vertically is provided at the center of the tank, divided by a plate and divided into two tanks, an upper tank and a lower tank. The upper tank is used as an inlet and the lower tank is used as an outlet. The upper end is made to be ejected simultaneously in all directions by forming a number of substantially spherical perforated outlets in front of the top plate.

この穴から噴出させる事により全方向で同時に減速させ、さらに水面や側板に当てて減速することによりタンク内部の流れを早く層流として流体間の混合を防止するようになっている。特に、流量の少ない場合は、略球形の噴出球の内部に略半球形の整流板を設けて均等に噴出するようにする。  By jetting from this hole, the speed is reduced simultaneously in all directions, and further, the speed is applied to the water surface and the side plate to reduce the flow in the tank quickly and prevent mixing between fluids. In particular, when the flow rate is small, a substantially hemispherical rectifying plate is provided inside the substantially spherical ejection sphere so as to be ejected evenly.

外部からの給水入口管は天板又は、側板上部を貫通した後、センターパイプ上槽の横から接続し流入させる。給水の流出は、底板の方に向けたラッパ状の板の内部より流出させる。このラッパ状の板は外周のヘリを折り返して逆のラッパ状として流出の流路形状をベンチュリー状として、その折り返し部に等間隔の穴を中心の方向に向けてもうけて、穴間はプレートで仕切る。これは、タンク周壁部で遅くなった流れを速くしようと、逆ラッパ状の板の径を大きくして周壁に近づけると、中央部の流れが悪くなり、又、径を小さくすると中央部の流れが速くなり、又、流量によっても変化してしまう。この時の流れのバランスを取るため、ラッパ状と逆方向のラッパ状の板の谷部に流れを集め、そこに穴をもうけて流し、コントロールする。この時、ベンチュリ効果により流速が早い方の流れは遅い方の流れを吸引し、バランスを取ってくれる。
センターパイプ下槽下端の給水出口口の周囲には円筒状の穴開きプレートを配位置し、タンク内の流れを整流する補助をさせている。流量が少ない場合は２重としてもうけ、さらなる少流量の場合には３重として効果を保つようにする。
外部への流出はラッパ状の板の中心に接続したセンターパイプ下槽から流出させる。
センターパイプ下槽に給水出口外管を横から接続し天板を貫通して外部に取出し、その内部に水中ポンプを仕込んで動力で流出させる。給水出口外管を天板から取り出すことによりタンクの水を抜かずに水中ポンプを引き出せるので、修理や取替えが簡単にできる。After the water supply inlet pipe from the outside penetrates the top plate or the upper side plate, it is connected from the side of the upper tank of the center pipe and flows in. The outflow of the feed water is made to flow out from the inside of the trumpet-shaped plate directed toward the bottom plate. This trumpet-shaped plate is folded around the outer helicopter to create a reverse trumpet shape, and the flow path shape of the outflow is venturi-shaped. Partition. This is because if the diameter of the reverse trumpet plate is increased to approach the peripheral wall in order to speed up the slowed flow at the tank peripheral wall, the flow at the center deteriorates. Becomes faster and changes depending on the flow rate. In order to balance the flow at this time, the flow is collected in a trough of a trumpet plate in the opposite direction to the trumpet shape, and a hole is made there to control it. At this time, due to the Venturi effect, the flow with the higher flow velocity attracts the flow with the slower flow rate and balances it.
A cylindrical perforated plate is located around the water supply outlet at the lower end of the center pipe lower tank to assist in rectifying the flow in the tank. When the flow rate is small, the effect is doubled, and when the flow rate is further small, the effect is maintained as triple.
Outflow to the outside is made to flow out from the center pipe lower tank connected to the center of the trumpet-shaped plate.
Connect the outer pipe of the water supply outlet to the center pipe lower tub from the side, pass through the top plate, take it out, put a submersible pump inside, and let it flow out with power. By removing the water supply outlet outer pipe from the top plate, the submersible pump can be pulled out without draining the tank, making repair and replacement easy.

給水を減速させる方法としてラッパ管を鏡板内面の方向に向けて鏡板にぶつける方法や両端を閉止した円筒状の穴開きプレートを通して鏡板と平行に噴出させて行う方法等が提案されているが、本発明では水面に給水入口口から全方向同時に噴出させるが、当然流れ方向の噴出量が多くなり、流れ方向と逆の方向の噴出量が少なくなる。  As a method of decelerating the water supply, a method of hitting the trumpet pipe toward the inner surface of the mirror plate or a method of jetting in parallel with the mirror plate through a cylindrical perforated plate with closed ends has been proposed. In the invention, the water surface is ejected from the water supply inlet at the same time in all directions, but naturally the amount of ejection in the flow direction increases and the amount of ejection in the direction opposite to the flow direction decreases.

流れ方向に噴出した流れは、水面を持ち上げ重力で減速させかつ反転させる。流れ方向と直角方向や、逆の方向の噴出による流れは、流れ方向の噴出によって、その周囲に生ずる循環流を防止する作用があり、内部混合を阻止する作用がある。これらの作用により入口管より噴出した乱流の流れは、すばやく層流の流れに変更され、内部で混合や分離することなく、出口の方へ流すことができる。又、前記流れ方向と逆方向の噴出量の違いを穴径や数を流入方向と流入と直角方向と、流入と逆方向で変更して噴出量を変えることにより流れを最適化することができる。  The flow ejected in the flow direction lifts the water surface, decelerates by gravity, and reverses. The flow by jetting in the direction perpendicular to the flow direction or in the opposite direction has an action of preventing a circulating flow generated around the jet by jetting in the flow direction and an action of preventing internal mixing. The turbulent flow ejected from the inlet pipe by these actions is quickly changed to a laminar flow and can flow toward the outlet without being mixed or separated inside. In addition, the flow can be optimized by changing the ejection amount by changing the difference in the ejection amount in the opposite direction to the flow direction in the hole diameter and the number in the direction perpendicular to the inflow direction and the inflow direction and in the direction opposite to the inflow direction. .

一方出口の形状は、この層流の流れを乱すことなく、かつできるだけ均等に集めて流出させる方法が必要である。その方法として底板の方向に向けた複合ラッパ状の板を流出管口の直前にもうけ、そのラッパ状の板の内部のセンターパイプ下槽の下端の流出口の周囲に円筒状の穴開き板をもうける。この円筒状の穴開板は流量が少なくなると効果が弱くなるため２重とすることにより効果を回復させることができる。さらに、少流量で使用するには３重とする必要がある。  On the other hand, the shape of the outlet needs to be a method of collecting and flowing out as evenly as possible without disturbing the laminar flow. As a method, a composite trumpet-shaped plate facing the bottom plate is provided immediately before the outlet pipe port, and a cylindrical perforated plate is provided around the outlet at the lower end of the center pipe lower tank inside the trumpet-shaped plate. . This cylindrical perforated plate becomes less effective when the flow rate is reduced, so that the effect can be recovered by making it double. Furthermore, it is necessary to make it triple in order to use it with a small flow rate.

ラッパ状の板とそのヘリを折り返して逆のラッパ状として流路形状をベンチュリ状となるようにして、その折返し部の谷部分に等間隔の穴を開け、かつ、穴間に仕切りを入れることにより、逆のラッパ板の大小による流れの不均等や流量の大小による流れの不均等を自動的に修正する効果がある。これは流路形状がベンチュリ状となっているためで穴からの噴流側とラッパ板の流路側のうち、速い方の流れが、遅い方の流れを吸引することによる。以上のように、入口側の形状と出口側の形状の組合せにより水の入れ換わりを促進する。又この発明は横形のタンクにも応用することができる。  Fold the trumpet plate and its helicopter into a reverse trumpet shape so that the channel shape becomes a venturi shape, and equidistant holes are made in the valley of the folded portion, and a partition is put between the holes Thus, there is an effect of automatically correcting the uneven flow due to the size of the reverse trumpet and the uneven flow due to the flow rate. This is because the flow path shape is a venturi shape, and the faster flow of the jet side from the hole and the flow path side of the trumpet plate sucks the slower flow. As described above, the exchange of water is promoted by the combination of the shape on the inlet side and the shape on the outlet side. The present invention can also be applied to a horizontal tank.

外部配管の取り回しに対しても、本タンクでは出入口管がタンク頂部に集中しているため配位置しやすく、地震が発生すれば、水中ポンプは感震器で停止させる事に加え、本タンクと接続される出口外部配管が地震で損傷した場合でも出口配管はタンク頂部にあり、空気弁（配管内が負圧になると空気を導入する弁）を取付ける事により自動的にタンク内部の水は確保され、従来のタンクで下部に接続された配管では必要となる遮断弁は不要であり、導入コストとメンテナンス費を低減することができる。  In this tank, the inlet and outlet pipes are concentrated on the top of the tank even when handling external piping.If an earthquake occurs, the submersible pump is stopped with a vibration sensor and Even if the outlet external piping connected is damaged by an earthquake, the outlet piping is at the top of the tank, and water inside the tank is automatically secured by installing an air valve (a valve that introduces air when the pressure in the piping becomes negative) In addition, a shutoff valve, which is necessary for piping connected to the lower part of a conventional tank, is unnecessary, and the introduction cost and maintenance cost can be reduced.

先行技術文献で問題となっているようにタンク内水の温度と、給水の温度の差が、内部の流れを分離するように働くが、タンクを立型としてやれば各温度の層は流れ方向に対し直角方向となり、温度による比重差の影響を受けにくい。  The difference between the temperature of the water in the tank and the temperature of the feed water works to separate the internal flow, as is a problem in the prior art literature. It is perpendicular to the direction and is not easily affected by the difference in specific gravity due to temperature.

本発明の実施形態を示す貯水槽の断面図  Sectional drawing of the water storage tank which shows embodiment of this invention 板のへりに逆向きのラッパ状の板を付けたラッパ状の板の拡大図  Enlarged view of a trumpet-shaped plate with a trumpet-shaped plate in the opposite direction attached to the edge of the plate センターパイプ上槽端に取付ける噴出球形部の拡大図  Enlarged view of the spheroidal section attached to the upper end of the center pipe 噴出球内部の整流板詳細図  Detailed view of the current plate inside the sphere センターパイプ上槽端に取付ける噴出半球形部の拡大図  Enlarged view of the ejected hemispherical part attached to the upper end of the center pipe 噴出半球内部の整流板詳細図  Detailed view of the current plate inside the jet hemisphere

図１において給水入口管（２）は天板を貫通した後、タンク内部を下がってセンターパイプ上槽（１５）に横から接続している。センターパイプは上槽（１５）と下槽（１６）に閉止板（１７）で分けられており、上槽（１５）を流入用、下槽（１６）を流出用としている。
給水出口外管（５）はセンターパイプ下槽の横から取出し上方に上がって天板を貫通して外部で閉止している。給水出口外管（５）の内部には水中ポンプ（３７）を仕込んでおり、水中ポンプ出口管（６）は外管の中を通って上方に上がって外管（５）の閉止板（３８）を貫通して外部に取出す。センターパイプ上槽の上端は水面（２１）の手前で略半球形（３）の流出口としており水面に向かって噴出させ、水面（２１）の重力により反転させる。
センターパイプ下槽（１６）は底板（１８）の方に向けて伸ばした後、円錐状に広がり、さらにヘリを折返して角型で逆方向を向いた複合ラッパ状となっている。複合ラッパ状の板（７）の折り返し部の所に中心方向に向け一定間隔で円周上に穴（８）を開け、その穴間には、複合ラッパ状の板と底板との間に仕切板（９）を流れ方向に沿って立て、折り返し部からラッパ状の板にかけて放射状に設け、穴と仕切板とラッパ状の板の間から流出させる。その後、円筒状の穴開板を１重（１２）又は２重（１１）に設け流れを整流し複合ラッパ板中心に集める。複合ラッパ状の板（７）の中心上部にセンターパイプ下槽（１６）が接続されている。複合ラッパ状の板の中心に集められた給水をセンターパイプ下槽（１６）に流出させ、給水出口外管（５）に流出させる。給水出口外管（５）の内部には水中ポンプ（３７）が仕込まれており、水中ポンプにより増圧されて水中ポンプ出口に接続された流出管（６）を通して外部に流出させる。
図２に流出外管と複合ラッパ板（７）の拡大図、図５に噴出半球（３）の拡大図を示す。
図５において、図１のセンターパイプ上端の噴出部を、半球（３）とラッパ管（１３）に分けた形状にしており、この内部にも半球形の整流板（３４）も追加して拡散の補助をさせる。又、噴出半球の製作に当っては穴開き板を展開切断して曲げ加工した数分割したものを地球儀のように組立てたものを使用しても何ら問題とはならないし、コストダウンにもつながる。
図３、図４には球形の噴出部を示す。横方向の噴出断面積を増やしており、流量が多い場合に使用する。このタンクには、水面（２１）があり、気相部分があるため、空気の出入りを受け持つ通気口（２４）が必要となるが、タンク内部の水の殺菌剤である次亜塩素酸は気相部で蒸発し、通気口から外部に放出され、タンク内で水の入れ換わりが遅いと、その必要な濃度０．１ｍｇ／ｌ以上（水道法）が保てなくなってしまう次点がある。そこで、このタンクには、一定の正圧力までは開かず、一定の負圧力まで開かない常時閉止型通気口を取付ける必要がある。これにより、一定の圧力までは、次亜塩素酸のガスを外部に放出することがなくなり、水中の次亜塩素酸濃度の低下を最小限に抑えることができる。
ここで、次亜塩素酸の放出を抑えたことにより、気相部分での次亜塩素酸濃度が高まり、天井部や側面に付着した水滴に次亜塩素酸ガスが再吸収され、濃縮されてタンク素材を腐食させる欠点が生じる。そこで、水圧の高い液相部は強度の出る溶接構造とするが、水圧の低い気相部から水面にかけては、強度をあまり必要としない為、パッキンを挟んだボルト組立て構造として、溶接はできないが、次亜塩素酸に強い樹脂や異種金属と組合わせて使用することにより解決することができる。In FIG. 1, the feed water inlet pipe (2) passes through the top plate, then goes down inside the tank and is connected to the center pipe upper tank (15) from the side. The center pipe is divided into an upper tank (15) and a lower tank (16) by a closing plate (17). The upper tank (15) is used for inflow and the lower tank (16) is used for outflow.
The water supply outlet outer pipe (5) is taken out from the side of the center pipe lower tub and rises upward, passes through the top plate and is closed outside. A submersible pump (37) is charged inside the feed water outlet outer pipe (5), and the submersible pump outlet pipe (6) passes through the outer pipe and rises upward to close the closing plate (38) of the outer pipe (5). ) Is taken out to the outside. The upper end of the upper pipe of the center pipe is a substantially hemispherical (3) outlet before the water surface (21), and is ejected toward the water surface and inverted by the gravity of the water surface (21).
The center pipe lower tank (16) extends toward the bottom plate (18) and then expands in a conical shape. The helicopter is folded back to form a square-shaped composite trumpet shape. Holes (8) are formed on the circumference at regular intervals toward the center at the folded portion of the composite trumpet-like plate (7), and a partition is formed between the holes between the trumpet-like plate and the bottom plate. The plate (9) is erected along the flow direction, is provided radially from the folded portion to the trumpet-shaped plate, and flows out from between the hole, the partition plate, and the trumpet-shaped plate. Thereafter, a cylindrical perforated plate is provided in a single (12) or double (11) state and the flow is rectified and collected at the center of the composite trumpet plate. A center pipe lower tank (16) is connected to the upper center of the composite trumpet-shaped plate (7). The feed water collected at the center of the composite trumpet-shaped plate is caused to flow into the center pipe lower tank (16) and to the feed water outlet outer pipe (5). A submersible pump (37) is charged inside the water supply outlet outer pipe (5), and the pressure is increased by the submersible pump and flows out through the outflow pipe (6) connected to the submersible pump outlet.
FIG. 2 shows an enlarged view of the outflow outer pipe and the composite trumpet plate (7), and FIG. 5 shows an enlarged view of the ejection hemisphere (3).
In FIG. 5, the jet part at the upper end of the center pipe in FIG. 1 is divided into a hemisphere (3) and a trumpet pipe (13). Help. Also, in the production of the ejected hemisphere, it is not a problem even if a product obtained by assembling a globe divided into several parts obtained by expanding, cutting and bending a perforated plate is used, leading to cost reduction. .
3 and 4 show a spherical ejection part. Used when the cross-sectional area of the jet is increased and the flow rate is high. Since this tank has a water surface (21) and a gas phase portion, a vent (24) that takes in and out of air is required. Hypochlorous acid, which is a water disinfectant inside the tank, is gas. If it evaporates at the phase part, is discharged to the outside from the vent, and the water is slowly replaced in the tank, there is a second point that the required concentration of 0.1 mg / l or more (water supply law) cannot be maintained. Therefore, it is necessary to attach a normally closed vent that does not open to a certain positive pressure and does not open to a certain negative pressure. Accordingly, the hypochlorous acid gas is not released to the outside up to a certain pressure, and the decrease in the concentration of hypochlorous acid in water can be minimized.
Here, by suppressing the release of hypochlorous acid, the concentration of hypochlorous acid in the gas phase increased, and the hypochlorous acid gas was reabsorbed and concentrated in the water droplets attached to the ceiling and side surfaces. The disadvantage of corroding the tank material occurs. Therefore, although the liquid phase part with high water pressure has a welded structure that gives strength, it does not require much strength from the gas phase part with low water pressure to the water surface, so it cannot be welded as a bolt assembly structure with packing in between. It can be solved by using in combination with a resin resistant to hypochlorous acid or a different metal.

１ タンク
２ 給水入口管
３ 噴出半球
４ 噴出穴
５ 流出外管
６ 流出管
７ 板のへりに逆向きの角形のラッパ状の板を付けたラッパ状の板（複合ラッパ板）
８ ７の板に開けた等間隔の穴
９ ７の板に付けた等間隔の穴間の仕切板
１０ 噴出球
１１ 給水出口前の穴開き円筒状
１２ 給水出口前の穴開き円筒板の外側の穴開き円筒板
１３ 噴出部ラッパ管
１４ 上部天板
１５ センターパイプ上槽
１６ センターパイプ下槽
１７ センターパイプ閉止板
１８ 下部底板
１９ 基礎
２０ 空気弁
２１ 水面
２３ 側面
２４ 常時閉止型通気口
２５ マンホール
２６ 気相部
２７ 次亜塩素酸に強い材質の板（液相部の材質とは溶接できない異材）
２９ 次亜塩素酸に強い材質側のフランジ
３０ ガスケット
３１ 通常の材質側のフランジ
３２ ボルト・ナット
３３ 内側整流板である半球形板の頂部に開いた穴
３４ 外整流板の穴
３５ 内整流板の穴
３６ 液相部
３７ 水中ポンプ
３８ 給水出口外管の閉止板DESCRIPTION OF SYMBOLS 1 Tank 2 Water supply inlet pipe 3 Ejection hemisphere 4 Ejection hole 5 Outflow outer pipe 6 Outflow pipe 7 The trumpet-shaped board (composite trumpet board) which attached the square trumpet-shaped board of the opposite direction to the edge of the board
8 Equally spaced holes formed in 7 plate 9 Separation plate 10 between equally spaced holes formed in 7 plate 7 Blowing ball 11 Hole-shaped cylindrical shape before water supply outlet 12 Outside hole-shaped cylindrical plate before water supply outlet Perforated cylindrical plate 13 Spout portion trumpet tube 14 Upper top plate 15 Center pipe upper tank 16 Center pipe lower tank 17 Center pipe closing plate 18 Lower bottom plate 19 Base 20 Air valve 21 Water surface 23 Side surface 24 Normally closed vent 25 Manhole 26 Gas phase portion 27 Plate made of material resistant to hypochlorous acid (a different material that cannot be welded to the material of the liquid phase)
29 Flange on the material side resistant to hypochlorous acid 30 Gasket 31 Flange on the normal material side 32 Bolt / nut 33 Hole opened in the top of the hemispherical plate which is the inner rectifying plate 34 Hole 35 in the outer rectifying plate 35 Hole 36 Liquid phase part 37 Submersible pump 38 Water supply outlet outer pipe closing plate

Claims (7)

両端を板で閉止した円筒型又は、角型で内部に自由水面を有する貯水タンク（１）において、タンク中心に上下方向に伸びるセンターパイプを設け、前記センターパイプは閉止板（１７）を設けて、上槽（１５）と下槽（１６）の２槽に分けており、上槽を流入用、下槽を流出用とし、前記センターパイプの上槽には、外部からの給水管（２）がタンク天板（１４）又は側板上部（２３）を貫いた後、横から接続しており、ここから給水をセンターパイプに送り込み、上端（３）を流入口としてタンク内に給水を流入させ、一方、センターパイプの下槽の下端は底板の方に向けて伸ばした後、円錐状に広がりさらにヘリを折り返したラッパ状の板（７）となっており、前記ラッパ状の板の折り返し部に一定間隔で穴（８）を開け、前記穴間に前記ラッパ状の板とタンクの底板との間に仕切り板（９）を流れの方向に沿って立て、前記仕切り板は折り返し周辺に放射状に設け、水流は前記穴を通り、前記仕切り板の間から流出させた後、円筒状の穴開きプレート（１１）（１２）を通って、センターパイプ下槽（１６）に集め、前記センターパイプ下槽の横に給水出口外管（５）を接続し、前記給水出口外管は天板を貫いたのち外部に出て閉止板（３８）で閉止されており、前記給水出口外管内部に水中ポンプ（３７）を仕込み、水中ポンプ出口管（６）は前記給水出口外管（５）の内部を通って上端の閉止された板（３８）を貫通して外部に取り出し、タンク内の水を流出させる事を特徴とする貯水タンク。  In a water storage tank (1) having both ends closed with plates or a square and having a free water surface, a center pipe extending in the vertical direction is provided at the center of the tank, and the center pipe is provided with a closing plate (17), It is divided into two tanks, a tank (15) and a lower tank (16). The upper tank is used for inflow and the lower tank is used for outflow. An upper water supply pipe (2) is provided in the upper tank of the center pipe. After passing through the plate (14) or the upper side plate (23), it is connected from the side, and feeds water into the center pipe from here, and feeds the water into the tank with the upper end (3) as the inlet, The lower end of the lower tank extends toward the bottom plate, and then becomes a trumpet-shaped plate (7) that spreads in a conical shape and further folds the helicopter. 8) Open and between the holes A partition plate (9) is erected between the trumpet-shaped plate and the bottom plate of the tank along the flow direction, the partition plate is provided radially around the fold, and the water flow passes through the holes and flows out from between the partition plates. After passing through the cylindrical perforated plates (11) and (12), they are collected in the center pipe lower tank (16), and a water supply outlet outer pipe (5) is connected to the side of the center pipe lower tank, and the water supply outlet The outer pipe passes through the top plate and then goes outside and is closed by a closing plate (38), and a submersible pump (37) is charged inside the feed water outlet outer pipe, and the submersible pump outlet pipe (6) is connected to the feed outlet. A water storage tank characterized in that it passes through the inside of the outer pipe (5), passes through a plate (38) closed at the upper end, is taken out to the outside, and the water in the tank flows out. 前記センターパイプ上槽の上端の流入口を略球形とし、前記略球形の表面に多数の穴を開けた事を特徴とする請求項１記載の貯水タンク。  2. The water storage tank according to claim 1, wherein an inflow port at an upper end of the center pipe upper tank has a substantially spherical shape, and a plurality of holes are formed in the substantially spherical surface. 前記センターパイプ上槽の上端の流入口を、流れ方向にラッパ状に広げた後、略半球形状とし前記略半球形の表面に多数の穴を開けた事を特徴とする請求項１記載の貯水タンク。  2. The water storage tank according to claim 1, wherein an inlet at an upper end of the center pipe upper tub is expanded in a trumpet shape in a flow direction, and is then substantially hemispherical, and a plurality of holes are formed in the substantially hemispherical surface. . 前記センターパイプ上槽の上端の流入口を略球形の整流板（３４）とし、その外側に略球形の整流板（３）を給水入口内管の中心線上の流入口側に取付けられており、前記２枚の整流板の表面に多数の穴を開け、前記内側の整流板（３４）の頂部に回りの穴より大きな穴を開けた事を特徴とする請求項１記載の貯水タンク。  The upper inlet of the center pipe upper tank is a substantially spherical current plate (34), and a substantially spherical current plate (3) is attached to the outside on the inlet side on the center line of the water supply inlet inner pipe, The water storage tank according to claim 1, wherein a number of holes are formed in the surfaces of the two current plates, and a hole larger than a surrounding hole is formed in a top portion of the inner current plate (34). 前記貯水タンクの気相部に一定の正圧力までは開かず、一定の負圧力まで開かない、常時閉止型通気口を取付けた事を特徴とする請求項１記載の貯水タンク。  2. The water storage tank according to claim 1, wherein a normally closed type vent is attached to the gas phase portion of the water storage tank so as not to open to a constant positive pressure and not to a constant negative pressure. 前記貯水タンクの水圧の高い液相部は溶接構造とし、水圧の低い気相部から水面にかけては、液相部と溶接ができない異材として、パッキンを挟んだ、ボルト組立て構造とした事を特徴とする請求項５記載の貯水タンク。  The liquid phase part with high water pressure of the water storage tank has a welded structure, and it has a bolt assembly structure with sandwiched packing as a different material that cannot be welded with the liquid phase part from the gas phase part with low water pressure to the water surface. The water storage tank according to claim 5. 前記給水出口外管を２本として、信頼性を向上させた事を特徴とする請求項１記載の貯水タンク。  The water storage tank according to claim 1, wherein the two water supply outlet outer pipes are used to improve reliability.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5890089A (en) * 1981-11-16 1983-05-28 市川　勇 Silencer for feedwater pipe of pool for swimming, water tank, etc.
JPS59165989U (en) * 1983-04-22 1984-11-07 三菱電機株式会社 Water pressure device
JPH05171663A (en) * 1991-12-25 1993-07-09 Sekisui Plant Syst Kk Water storage tank with silencer
JPH08311941A (en) * 1995-05-15 1996-11-26 Iwao Takahashi Emergency small-scale underground water storage tank device
JPH09317910A (en) * 1996-05-28 1997-12-12 Kurimoto Ltd Four way port directional control valve
JPH10299039A (en) * 1997-04-25 1998-11-10 Shimizu Plant Syst Kk Sound absorber of liquid storage tank
US6152707A (en) * 1997-05-28 2000-11-28 Alberg; Steven C. Portable water tank and booster
JP2001038317A (en) * 1999-07-29 2001-02-13 Takada Seisakusho:Kk Device for preventing inside of water storage tank from being stained

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5890089A (en) * 1981-11-16 1983-05-28 市川　勇 Silencer for feedwater pipe of pool for swimming, water tank, etc.
JPS59165989U (en) * 1983-04-22 1984-11-07 三菱電機株式会社 Water pressure device
JPH05171663A (en) * 1991-12-25 1993-07-09 Sekisui Plant Syst Kk Water storage tank with silencer
JPH08311941A (en) * 1995-05-15 1996-11-26 Iwao Takahashi Emergency small-scale underground water storage tank device
JPH09317910A (en) * 1996-05-28 1997-12-12 Kurimoto Ltd Four way port directional control valve
JPH10299039A (en) * 1997-04-25 1998-11-10 Shimizu Plant Syst Kk Sound absorber of liquid storage tank
US6152707A (en) * 1997-05-28 2000-11-28 Alberg; Steven C. Portable water tank and booster
JP2001038317A (en) * 1999-07-29 2001-02-13 Takada Seisakusho:Kk Device for preventing inside of water storage tank from being stained

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