JPH0924991A - Emergency water tank - Google Patents
Emergency water tankInfo
- Publication number
- JPH0924991A JPH0924991A JP7194086A JP19408695A JPH0924991A JP H0924991 A JPH0924991 A JP H0924991A JP 7194086 A JP7194086 A JP 7194086A JP 19408695 A JP19408695 A JP 19408695A JP H0924991 A JPH0924991 A JP H0924991A
- Authority
- JP
- Japan
- Prior art keywords
- water
- tank
- end plate
- emergency
- pipe
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、平常時には上水
道の配水管に接続した送配水施設として使用し、震災等
の緊急時には飲料水や消火用水等の水供給源として使用
する応急用の水タンクに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency water used as a water supply / distribution facility connected to a water supply pipe in normal times and used as a water supply source for drinking water, fire extinguishing water, etc. in an emergency such as an earthquake. It is about tanks.
【０００２】[0002]
【従来の技術】平常時に送配水施設として使用し、緊急
時には飲料水等の応急供給源として使用する水タンク
は、タンク内に死水と呼ばれる停滞水が生じず、流入す
る新鮮な水が比較的短時間に流出して常に入れ替わり、
平常時の送水と緊急時の給水を円滑に行える機能が求め
られる。2. Description of the Related Art A water tank that is used as a water supply and distribution facility in normal times and used as an emergency supply source for drinking water in an emergency does not cause stagnant water called dead water in the tank, and the inflowing fresh water is relatively It leaks in a short time and is constantly replaced,
It is required to have a function that enables smooth water supply during normal times and water supply during emergencies.
【０００３】しかし、水タンクは、一般的に、水の入出
用に設ける流入出管の口径断面積に対してタンクの直径
断面積が大きいため、タンク内で全体的な水の流速が低
下し、場所によっては高速で通過するショートパス域が
生じたり、水が停滞する死水域を生じやすい。これらの
点を解決すべく、タンクの円筒胴を水平に置いた水平円
筒形タンクや円筒胴を垂直に置いた竪円筒形タンクにお
いては、水が流入出する位置や方向、或は水の流動方向
ガイド等に各種の工夫が考えられている。However, since the water tank generally has a large diameter cross-sectional area of the tank with respect to the cross-sectional area of the diameter of the inflow and outflow pipes provided for water inflow and outflow, the overall flow velocity of water in the water tank decreases. Depending on the location, a short pass area that passes at high speed may occur, or a dead water area where water may stagnant. In order to solve these problems, in a horizontal cylindrical tank in which the cylinder body of the tank is placed horizontally or in a vertical cylindrical tank in which the cylinder body is placed vertically, the position and direction of water inflow and outflow, or the flow of water Various ideas are being considered for direction guides.
【０００４】例えば、水平円筒形タンクを密閉する両端
部の内側中央に向けて対称に流入管と流出管を開口して
配置した緊急時用飲料水貯槽の実開平６−２２２９７号
の考案、水平円筒形タンクを密閉する両端部の一端部中
央に流入管を接続するとともに旋回流を与えるためにそ
の一端部付近にタンク内周に沿った螺旋リブと吐出口を
設けて両端部の他端部に流出管を接続した貯水タンクの
特開平６−１９９３９１号の発明、或は竪円筒形貯水槽
の上部内壁接線方向に流入管を開口し下方中央部に流出
管を開口した耐震性貯水槽の特公昭６３−２６０２９号
の発明等の工夫が知られている。なお、竪円筒形タンク
は、一般的に水平円筒形タンクに比べると胴の長さ、つ
まり胴長に対して胴の直径つまり胴径が大きい比率で形
成されている。For example, the invention of No. 6-22297, which is an actual drinking water storage tank for emergency use, in which the inflow pipe and the outflow pipe are symmetrically opened toward the inner center of both ends for sealing the horizontal cylindrical tank, and is horizontal. The inflow pipe is connected to the center of one end of both ends that seals the cylindrical tank, and a spiral rib along the inner circumference of the tank and a discharge port are provided near the one end to give a swirling flow, and the other end of both ends is provided. The invention of Japanese Patent Application Laid-Open No. 6-199391 of a water storage tank in which an outflow pipe is connected to, or a seismic resistant water storage tank in which an inflow pipe is opened in a tangential direction of an upper inner wall of a vertical cylindrical water storage tank and an outflow pipe is opened in a lower central portion. Inventions such as the invention of JP-B-63-26029 are known. It should be noted that the vertical cylindrical tank is generally formed such that the cylinder length, that is, the diameter of the cylinder, that is, the cylinder diameter, is larger than that of the horizontal cylindrical tank.
【０００５】また、水タンクには、緊急時の円滑な給水
ためにタンクの下部近傍まで配管を配設した給水栓や消
火栓等が設置され、その配管の開口した下端部近傍には
タンク下部の最後の水まで効率よく給水できるように有
底筒体形状又は欠球形状に下方に突出して凹形状に形成
したピットをタンクの下部に配設している。Further, in the water tank, in order to smoothly supply water in an emergency, a water hydrant and a fire hydrant having pipes arranged up to near the lower part of the tank are installed, and the lower part of the tank is provided near the lower end where the pipe is opened. In order to efficiently supply water to the last water, a pit formed in the shape of a bottomed cylinder or in the shape of a truncated sphere and having a concave shape is provided at the bottom of the tank.
【０００６】さらに水タンクには、エアー抜き等の弁付
きノズルを設ける取付け座、或は定期検査等に人が侵入
するマンホール等として利用するためにタンクの密閉し
た上部に蓋付きの管台を上方に延出して形成した盲口を
設置している。Further, in the water tank, a mounting seat provided with a nozzle with a valve for venting air, or a pipe stand with a lid on the sealed upper part of the tank for use as a manhole etc. for people to enter for periodic inspections, etc. It has a blind opening that extends upward.
【０００７】[0007]
【発明が解決しようとする課題】水平円筒形、竪円筒形
のいずれの水タンクにおいても、一般的には、水の流動
する方向に高速のショートパス域が生じ易く、水の流動
する方向と直交する方向に水の停滞する死水域が生じ易
いため、タンク内の水の入れ替わらない、つまり水の置
換性を失われることがある。これらの点を解決すべく工
夫された前述の緊急時用飲料水貯槽、貯水タンク、耐震
性貯水槽は、いずれもそれなりの効果を有するものであ
る。In both horizontal and vertical water tanks, generally, a high-speed short pass region is apt to occur in the water flowing direction, and the water flowing direction is Since a dead water area where water stagnates in the orthogonal direction is likely to occur, the water in the tank may not be replaced, that is, the water replaceability may be lost. The above-mentioned emergency drinking water storage tank, water storage tank, and earthquake-resistant water storage tank, which have been devised to solve these problems, all have their own effects.
【０００８】しかしながら、前記緊急時用飲料水貯槽の
考案は、流動方向のガイドを設けていないために胴長に
対して胴径の比率が大きな竪円筒形タンクでは水の置換
性が不十分となりやすく、また前記貯水タンクの発明
は、流動方向のガイドとしてタンクの内周に沿った螺旋
リブを設けてはいるものの、胴長に対して胴径比率の大
きな竪円筒形タンクでは、タンクの内周に沿った螺旋リ
ブを大きくする必要が生じるため、結果としてそのリブ
による流水抵抗が大きくなり、そのリブの設置も難し
く、タンク外部の地中に設置する流出管または流入管の
埋設も困難となる。更にまた前記耐震性貯水槽の発明
も、胴長に対して胴径比率の大きな竪円筒形タンクで
は、上部内壁の接線方向から流入した水が流速を失って
下方中央部から直接流出するショートパスの心配があ
る。いずれの工夫も、それなりの効果を有するものでは
あるが、上述のように胴長に対して胴径の比率が大きな
竪円筒形タンクに最も適した工夫とはなりえず、依然と
して水の置換性等に問題を内在している。However, in the invention of the emergency drinking water storage tank, since the guide in the flow direction is not provided, the water substitutability becomes insufficient in the vertical cylindrical tank having a large ratio of the body diameter to the body length. In addition, although the invention of the water storage tank is provided with a spiral rib along the inner circumference of the tank as a guide in the flow direction, in the case of a vertical cylindrical tank with a large diameter ratio to the body length, Since it is necessary to make the spiral ribs along the circumference larger, the resulting water flow resistance due to the ribs becomes larger, and it is difficult to install the ribs, and it is also difficult to bury the outflow pipe or the inflow pipe installed in the ground outside the tank. Become. Furthermore, the invention of the above-mentioned earthquake-resistant water storage tank is also a vertical cylindrical tank having a large diameter ratio to the body length, and a short path in which water flowing in from the tangential direction of the upper inner wall loses its flow velocity and directly flows out from the lower central portion. I have a concern. Although any device has some effects, it cannot be the most suitable device for the vertical cylindrical tank having a large ratio of the body diameter to the body length as described above, and the water replacement property is still not satisfied. Etc. has an inherent problem.
【０００９】また、水平円筒形、竪円筒形のいずれの水
タンクにおいても、タンクの下部に形成した前述のピッ
トとタンクの上部に形成した前述の盲口に貯められた水
は、流れることなく停滞し、置換されない死水となりや
すい。In both the horizontal cylindrical and vertical cylindrical water tanks, the water stored in the above-mentioned pit formed in the lower part of the tank and the above-mentioned blind opening formed in the upper part of the tank does not flow. It is stagnant and is prone to dead water that cannot be replaced.
【００１０】この発明は、タンク内に死水と呼ばれる停
滞水が生じず、流入する新鮮な水が比較的短時間に流出
して常に入れ替わり、平常時の送配水施設としての送水
と緊急時の飲料水等の応急供給源としての給水を円滑に
行える水タンクを提供するものである。According to the present invention, dead water called dead water does not occur in the tank, and fresh inflowing water flows out in a relatively short period of time and is constantly replaced. It is intended to provide a water tank that can smoothly supply water as an emergency supply source of water and the like.
【００１１】[0011]
【課題を解決するための手段】上下両端部を密閉した竪
円筒形タンク本体に流入管及び流出管を配設した応急水
タンクの発明は、タンク本体の密閉した下端部を半楕円
体形の鏡板で形成するとともにその鏡板の中心を軸とし
て放射状に複数枚の旋回羽根を鏡板の内面に組み付けて
形成し、旋回羽根を組み付けた鏡板の中心に向かうとと
もに近接して上記流入管又は流出管の先端部を開口して
なるもので、鏡板の中心に向かって流入管を設けたもの
では、流入管から下向きに流入する水が鏡板に衝突し半
楕円体形の鏡板内面に沿い、かつ旋回羽根に案内されて
タンク内を上向きに水が旋回流動し、鏡板の中心に向か
って流出管を設けたものでは、タンク内を下降してきた
水が半楕円体形の鏡板内面に沿い、かつ旋回羽根に案内
されて流出管に入り上昇してタンク外へ流出することに
よってタンク内の水を下向きに旋回流動するように形成
したものである。The invention of an emergency water tank in which an inflow pipe and an outflow pipe are arranged in a vertical cylindrical tank body whose upper and lower ends are hermetically sealed is disclosed in the invention. And is formed by radially attaching a plurality of swirl vanes to the inner surface of the end plate with the center of the end plate as an axis. In the case where an inflow pipe is provided toward the center of the end plate, water that flows downward from the inflow pipe collides with the end plate and is guided along the inner surface of the semi-ellipsoidal end plate, and is guided to the swirl vanes. When water is swirled upward in the tank and the outflow pipe is installed toward the center of the mirror plate, the water descending in the tank is guided along the inner surface of the semi-ellipsoidal mirror plate and is guided by the swirl vanes. Enter the outflow pipe Is obtained by forming so as to pivot flow of water in the tank downwardly by flowing out rises and outside the tank.
【００１２】また、両端部を密閉した円筒形タンク本体
に配設した流入管及び流出管と、タンク本体の下部に下
方に突出して凹形状に形成したピットを設けた応急水タ
ンクの発明は、ピットに向かうとともに近接して流入管
又は流出管の先端部を開口してなるもので、ピットに近
接して流入管を設けたものでは、流入管から流入する水
がピット内の水をタンク内の上方へ押し出し流動させ、
ピットに近接して流出管を設けたものでは、ピット内の
水を流出管から押し出してタンク外へ流出させるように
形成したものである。Further, the invention of an emergency water tank provided with an inflow pipe and an outflow pipe arranged in a cylindrical tank body whose both ends are hermetically sealed and a pit formed in a concave shape at a lower portion of the tank body is formed, It is formed by opening the tip of the inflow pipe or the outflow pipe close to the pit, and in the case where the inflow pipe is provided close to the pit, the water flowing in from the inflow pipe is the water in the pit inside the tank. And push it upwards to make it flow,
In the case where the outflow pipe is provided close to the pit, the water in the pit is formed so as to be pushed out from the outflow pipe and flow out of the tank.
【００１３】さらに、両端部を密閉した円筒形タンク本
体に配設した流入管及び流出管と、タンク本体の上部に
蓋板付きの管台を上方に延出して形成した盲口を設けた
応急水タンクの発明は、盲口に向かうとともに近接して
上記流入管又は流出管の先端部を開口してなるもので、
盲口に近接して流入管を設けたものでは、流入管から流
入する水が盲口内の水をタンク内の下方へ押し出し流動
させ、盲口に近接して流出管を設けたものでは、盲口内
の水を流出管から押し出してタンク外へ流出させるよう
に形成したものである。In addition, an inflow pipe and an outflow pipe which are arranged in a cylindrical tank body whose both ends are closed, and a blind port which is formed by extending a pipe base with a lid plate upward at the top of the tank body are provided. The invention of the water tank is such that the front end portion of the inflow pipe or the outflow pipe is opened in the vicinity of the blind port.
In the case where the inflow pipe is provided close to the blind port, the water flowing in from the inflow pipe pushes the water in the blind port downward in the tank to flow, and in the case where the outflow pipe is provided close to the blind port, It is formed so that the water in the mouth is pushed out from the outflow pipe to flow out of the tank.
【００１４】[0014]
【発明の実施の形態】発明の実施の形態とその作用を、
図示の実施例とともに以下に説明する。BEST MODE FOR CARRYING OUT THE INVENTION
It will be described below together with the illustrated embodiment.
【００１５】[0015]
【実施例】この発明の一つの実施例を図１から図４まで
の図面に示す。図面中、１は応急水タンク、２は水道本
管、３は流入管、４は流出管で、水道本管２の水は、弁
で仕切った水道本管１の一方側から分岐して開閉弁、伸
縮継手、緊急遮断弁、流入管３を通って応急水タンク１
へ流入し、応急水タンク１内の水は流出管４、緊急遮断
弁、伸縮継手、開閉弁を通って弁で仕切られた他方側の
水道本管２へ流出し、応急水タンク１は平常時の送配水
施設として使用する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in the drawings of FIGS. In the drawing, 1 is an emergency water tank, 2 is a water main, 3 is an inflow pipe, 4 is an outflow pipe, and water in the water main 2 is branched from one side of the water main 1 partitioned by a valve to open and close. Emergency water tank 1 through valve, expansion joint, emergency shutoff valve, inflow pipe 3
The water in the emergency water tank 1 flows through the outflow pipe 4, the emergency shutoff valve, the expansion joint, and the on-off valve to the water main 2 on the other side, which is partitioned by the valve, and the emergency water tank 1 is normally operated. Used as a water transmission and distribution facility at the time.
【００１６】また震災等の緊急時には、水道本管２と応
急水タンク１との間に設けた緊急遮断弁が閉塞作動し、
水道本管２から応急水タンク１への入水と応急水タンク
１から水道本管２への出水を遮断して応急水タンク１内
に水を貯え、貯えられた水は、応急水タンク１の底部ま
で配管を配設した消火栓１０や給水栓１１等から取り出
して消火用や飲料用等に供給し、応急水タンク１は水の
応急供給源として使用する。In an emergency such as an earthquake, an emergency shutoff valve provided between the water main 2 and the emergency water tank 1 is closed,
The water from the water main 2 into the emergency water tank 1 and the water from the emergency water tank 1 to the water main 2 are cut off to store water in the emergency water tank 1, and the stored water is stored in the emergency water tank 1. The emergency water tank 1 is taken out from the fire hydrant 10 or the water hydrant 11 having pipes to the bottom and supplied for fire extinguishing, drinking, etc., and the emergency water tank 1 is used as an emergency supply source of water.
【００１７】このように使用する応急水タンク１を、地
盤面５より下の地中に垂直に配置した円筒胴７の上下両
端部を密閉した竪円筒形タンクに形成し、そのタンク１
本体の密閉した上下両端部の少なくとも下端部は、半楕
円体形の鏡板６Ｂで形成し、その鏡板６Ｂの内面には、
鏡板６Ｂの中心を軸として放射状に同一の旋回方向に向
けた旋回羽根８Ｂを旋回流を与えるための案内羽根とし
て組み付け、その旋回羽根８Ｂを組み付けた鏡板６Ｂの
中心に向かうとともに近接して流入管３又は流出管４の
先端部を開口して形成する。The emergency water tank 1 used in this way is formed as a vertical cylindrical tank in which the upper and lower ends of a cylindrical body 7 vertically arranged in the ground below the ground surface 5 are sealed.
At least the lower end portions of the upper and lower closed end portions of the main body are formed by a semi-ellipsoidal end plate 6B, and the inner surface of the end plate 6B is
The swirl vanes 8B directed radially in the same swirling direction about the center of the end plate 6B are assembled as guide vanes for giving a swirling flow, and the swirl vanes 8B are directed toward the center of the end plate 6B in which the swirl vane 8B is mounted and approach the inflow pipe in close proximity. 3 or the tip of the outflow pipe 4 is opened.
【００１８】このように竪円筒形タンク本体の密閉した
少なくとも下端部を半楕円体形の鏡板で形成するととも
にその鏡板の中心を軸として放射状に複数枚の旋回羽根
を鏡板の内面に組み付けて形成し、旋回羽根を組み付け
た鏡板の中心に向かうとともに近接して流入管又は流出
管の先端部を開口してなる応急水タンクにおいては、流
入管を設けたものでは、流入管から下向きに流入する水
が鏡板に衝突し半楕円体形の鏡板内面に沿い、かつ旋回
羽根に案内されてタンク内を水が上向きに旋回流動し、
流出管を設けたものでは、タンク内を下降してきた水が
半楕円体形の鏡板内面に沿い、かつ旋回羽根に案内され
て流出管に入り上昇してタンク外へ流出することによっ
てタンク内の水は下向きに旋回流動するため、胴長に対
して胴径の比率が大きな竪円筒形タンクでも、流入する
新鮮な水が比較的短時間に流出して常に入れ替わり、タ
ンク内に停滞する死水を生じることがない。As described above, at least the lower end of the vertical cylindrical tank body which is closed is formed of a semi-ellipsoidal mirror plate, and a plurality of swirl vanes are radially assembled on the inner surface of the mirror plate around the center of the mirror plate. , In an emergency water tank that opens the tip of the inflow pipe or the outflow pipe toward the center of the end plate with the swirl vane installed, in the case of the one with the inflow pipe, the water flowing downward from the inflow pipe Collides with the end plate, along the inner surface of the semi-ellipsoidal end plate, and guided by the swirl vanes, water swirls upward in the tank,
In the case where the outflow pipe is provided, the water in the tank descends along the inner surface of the semi-ellipsoidal end plate and is guided by the swirl vanes into the outflow pipe and rises to the outside of the tank. Since it swirls downwards, even in a vertical cylindrical tank with a large ratio of body diameter to body length, fresh water that flows in flows out in a relatively short time and is constantly replaced, resulting in stagnant dead water in the tank. Never.
【００１９】また、上述のように、鏡板のほぼ中心に向
かうとともに近接して開口した流入管又は流出管の先端
部近傍の鏡板内面に組み付けて形成した旋回羽根は、流
入管から流入する高圧水によって旋回水流を生じさせ、
又は流出管から流出する水によって旋回水流を誘引させ
て、タンク内に効率良く旋回水流を生じさせることがで
きるともに、加えて鏡板内面に放射状に組み付けて形成
する旋回羽根は比較的小さくすることができるため流水
抵抗が小さく、結果として圧力損失が少ないので、円滑
に平常時の送配水施設として使用することができる。Further, as described above, the swirl vanes formed by being attached to the inner surface of the end plate near the tip of the inflow pipe or the outflow pipe which are opened toward the center of the end plate and close to each other are the high pressure water flowing from the inflow pipe. Creates a swirling water flow by
Alternatively, the swirling water flow can be induced by the water flowing out from the outflow pipe to efficiently generate the swirling water flow in the tank, and in addition, the swirl vanes radially assembled on the inner surface of the end plate can be made relatively small. As a result, the flow resistance is small, and the pressure loss is small as a result, so it can be used smoothly as a normal water distribution facility.
【００２０】図示の実施例は、流入管３から流入した水
に上からみて時計回りに旋回流を与える一段の旋回羽根
８Ｂを放射状に組み付けた下部の鏡板６Ｂと、旋回流の
流れ方向を同じくするために反時計回りに旋回流を誘引
させる一段の旋回羽根８Ａを放射状に組み付けた上部の
鏡板６Ａとで円筒胴７の上下両端部を密閉するととも
に、流入管３の開口した先端部を下部の鏡板６Ｂに近接
し、かつ流出管４の開口した先端部を上部の鏡板６Ａに
近接して形成した応急水タンク１を示したものである。In the illustrated embodiment, the lower end plate 6B radially assembled with one-stage swirl vanes 8B for giving a swirl flow to the water flowing in from the inflow pipe 3 in the clockwise direction when viewed from above and the swirl flow direction are the same. To this end, the upper and lower end portions of the cylindrical barrel 7 are sealed with the upper end plate 6A radially assembled with the one-stage swirl vane 8A that attracts the swirl flow counterclockwise, and the open end of the inflow pipe 3 is lowered. 2 shows the emergency water tank 1 formed in the vicinity of the end plate 6B and the end of the outflow pipe 4 which is opened in the vicinity of the upper end plate 6A.
【００２１】図示の実施例のように応急水タンク１を形
成すると、流入管３から高圧で下向きに流入した水は、
下部の鏡板６Ｂに衝突し、下部の旋回羽根８Ｂに案内さ
れ、旋回水流となってタンク１内を上昇流動する。タン
ク１内を上昇した水は、上部の旋回羽根８Ａに更に同一
方向の旋回を誘引され、タンク１内の水に、より効率良
く旋回水流を生じさせ、上方に開口した流出管４からタ
ンク１外の水道本管２へと流出する。このように、旋回
羽根８を上下それぞれの鏡板６内面に設ける場合には、
その旋回羽根８の大きさを、より小さくすることがで
き、旋回羽根８による流水抵抗もより小さくすることが
でき、圧力損失の少ない経済的な送配水施設とすること
ができる。When the emergency water tank 1 is formed as in the illustrated embodiment, the water flowing downward from the inflow pipe 3 at a high pressure is
It collides with the lower end plate 6B, is guided by the lower swirl vane 8B, becomes a swirling water flow, and ascends in the tank 1. The water that has risen in the tank 1 is further attracted to the swirling vanes 8A in the upper direction to swirl in the same direction, and the swirling water flow is generated in the water in the tank 1 more efficiently. It flows to the outside water main 2. Thus, when the swirl vanes 8 are provided on the inner surfaces of the upper and lower end plates 6, respectively,
The size of the swirl vane 8 can be made smaller, the flow resistance by the swirl vane 8 can be made smaller, and an economical water supply and distribution facility with less pressure loss can be provided.
【００２２】また、応急水タンク１は、水平円筒形、竪
円筒形のいずれの形状であっても、そのタンク１下部の
下方に突出して凹形状に形成したピット９を設け、その
ピット９内に先端部を開口した給水栓１０や消火栓１１
等の配管を設置し、震災等の緊急時には、前述したよう
にタンク１底部の水までも給水用に使用する。このよう
にピット９を設けた応急水タンク１は、ピット９に向か
うとともに近接して流入管３又は流出管４の先端部を開
口して形成する。Whether the emergency water tank 1 has a horizontal cylindrical shape or a vertical cylindrical shape, a pit 9 formed in a concave shape projecting downward of the tank 1 is provided in the pit 9. Hydrant 10 and fire hydrant 11 with the tip open at the end
In case of an emergency such as an earthquake, the water at the bottom of the tank 1 is also used for water supply in case of an emergency such as an earthquake. Thus, the emergency water tank 1 provided with the pit 9 is formed by opening the leading end portion of the inflow pipe 3 or the outflow pipe 4 toward the pit 9 and close to the pit 9.
【００２３】このように両端部を密閉した円筒形タンク
本体の下部に下方に突出して凹形状に形成したピットに
向かうとともに近接して流入管又は流出管の先端部を開
口した応急水タンクにおいては、流入管を設けたもので
は、流入管から流入する水がピット内の水をタンク内の
上方へ押し出し流動させ、流出管を設けたものでは、ピ
ット内の水を流出管から押し出してタンク外へ流出させ
るので、ピット内に停滞水の死水が生じないため、飲料
水等に適した新鮮な水を緊急時に供給する応急供給源に
適し、平常時の円滑な送配水施設にも適した水タンクと
して使用することができる。In the emergency water tank in which the tip of the inflow pipe or the outflow pipe is opened closely to the pit formed in the concave shape protruding downward from the lower portion of the cylindrical tank body whose both ends are thus sealed, For those with an inflow pipe, the water flowing in from the inflow pipe pushes the water in the pit upward to flow inside the tank, and for those with an outflow pipe, the water in the pit is pushed out of the outflow pipe and outside the tank. Since there is no dead water in the pit because it flows out to the pit, it is suitable as an emergency supply source that supplies fresh water suitable for drinking water etc. in an emergency, and also suitable for smooth water distribution facilities in normal times. Can be used as a tank.
【００２４】図示の実施例は、竪円筒形タンクの下端部
に形成した半楕円体形の鏡板６Ｂの中心に下方に欠球凹
形状に突出して形成したピット９に近接して流入管３の
先端部を開口した応急水タンク１を示したものであり、
流入管３から高圧で下向きに流入した水はピット９内の
水をタンク１内の上方へ押し出して流動させ、上昇した
上部の流出管４からタンク１外の水道本管２へ流出する
ように形成している。また流入管３の先端部には、切頭
円錐形に開口したノズル口を設けて、効率良くピット９
内の水を流動させるように形成している。In the illustrated embodiment, the tip of the inflow pipe 3 is close to a pit 9 formed by projecting a semi-elliptical end plate 6B formed in the lower end of a vertical cylindrical tank downwardly in the shape of a concave sphere. It shows an emergency water tank 1 with an open part,
The water that flows downward from the inflow pipe 3 at high pressure pushes the water in the pit 9 upwards in the tank 1 to make it flow, and then flows out from the elevated outflow pipe 4 to the water main 2 outside the tank 1. Is forming. Further, the tip of the inflow pipe 3 is provided with a nozzle opening that opens in a frustoconical shape so that the pits 9 can be efficiently formed.
It is formed to make the water inside flow.
【００２５】なお、図示の実施例は、竪円筒形タンクで
の事例を示しているが、水平円筒形タンクの下部に形成
したピット９に、そのピット９に向かうとともに近接し
て流入管３又は流出管４の先端部を開口して形成して
も、前述の作用、つまり流入管３を設けたものでは、流
入管３から流入する水がピット９内の水をタンク１の上
方へ流動させ、流出管４を設けたものでは、ピット９内
の水を流出管４からタンク１の外へ流出させて、ピット
９内に停滞水の死水が生じず、緊急時に新鮮な水を供給
する応急供給源に適し、平常時の円滑な送配水施設にも
適した水タンク１として使用することができるという作
用効果が得られることは言及するまでもない。Although the illustrated embodiment shows a case of a vertical cylindrical tank, the inflow pipe 3 or the pit 9 formed in the lower portion of the horizontal cylindrical tank is approached to the pit 9 and is close to the pit 9. Even if the tip of the outflow pipe 4 is formed to be open, the above-mentioned action, that is, in the case where the inflow pipe 3 is provided, the water flowing from the inflow pipe 3 causes the water in the pit 9 to flow above the tank 1. In the case where the outflow pipe 4 is provided, the water in the pit 9 is caused to flow out of the tank 1 through the outflow pipe 4 so that dead water does not remain in the pit 9 and fresh water is supplied in an emergency. It goes without saying that the operational effect is obtained that the water tank 1 can be used as a water source suitable for a supply source and also for smooth water supply and distribution facilities in normal times.
【００２６】また、応急水タンク１は、水平円筒形、竪
円筒形のいずれの形状であっても、そのタンク１上部の
上方に蓋板１３付きの管台１４を延出して形成した盲口
１２を設け、その盲口１２をタンク１内へ侵入するため
のマンホール１５やエアー抜き等の弁付きノズルを取り
付ける座として利用している。このように盲口１２を設
けた応急水タンク１は、盲口１２に向かうとともに近接
して流入管３又は流出管４の先端部を開口して形成す
る。Whether the emergency water tank 1 has a horizontal cylindrical shape or a vertical cylindrical shape, a blind port formed by extending a nozzle 14 with a cover plate 13 above the tank 1 is provided. 12 is provided, and the blind hole 12 is used as a seat for attaching a manhole 15 for entering the tank 1 and a valved nozzle such as an air vent. The emergency water tank 1 provided with the blind port 12 is formed by opening the leading end of the inflow pipe 3 or the outflow pipe 4 toward the blind port 12 and close thereto.
【００２７】このように両端部を密閉した円筒形タンク
本体の上部に蓋板付きの管台を上方に延出して形成した
盲口に向かうとともに近接して流入管又は流出管の先端
部を開口してなる応急水タンクにおいては、流入管を設
けたものでは、流入管から高圧で流入する水が盲口内の
水をタンク内の下方へ押し出し流動させ、流出管を設け
たものでは、盲口内の水を流出管から押し出してタンク
外へ流出させるので、盲口内に停滞水の死水が生じない
ため、飲料水等に適した新鮮な水を緊急時に供給する応
急供給源に適し、平常時の円滑な送配水施設にも適した
水タンクとして使用することができる。In this way, the tip of the inflow pipe or the outflow pipe is opened close to and toward the blind port formed by extending the pipe base with the lid plate upward on the upper portion of the cylindrical tank body whose both ends are closed. In the case of an emergency water tank that is equipped with an inflow pipe, the water that flows in at high pressure from the inflow pipe pushes the water in the blind port downwards in the tank and causes it to flow. Since the water in the tank is pushed out of the outflow pipe and flows out of the tank, dead water in the blind does not die, so it is suitable as an emergency supply source that supplies fresh water suitable for drinking in an emergency, and It can be used as a water tank suitable for smooth water distribution facilities.
【００２８】図示の実施例は、竪円筒形タンクの上端部
に形成した半楕円体形の鏡板６Ａ中心の上方に盲フラン
ジの蓋板１３を取り付けたノズル座の管台１４を延出し
て形成した盲口１２に近接して流出管４の先端部を開口
した応急水タンク１を示したものであり、盲口１２内の
水は流出管４から押し出されてタンク１外の水道本管２
へ流出するように形成している。また流出管４の先端部
には、切頭円錐形に開口したノズル口を設けて、効率良
く盲口１２内の水を流出させるように形成している。The illustrated embodiment is formed by extending a nozzle seat nozzle base 14 having a blind flange cover plate 13 mounted above the center of a semi-ellipsoidal end plate 6A formed at the upper end of a vertical cylindrical tank. It shows the emergency water tank 1 in which the tip of the outflow pipe 4 is opened close to the blind port 12, and the water in the blind port 12 is pushed out from the outflow pipe 4 and the water main 2 outside the tank 1 is shown.
It is formed so as to flow out to. Further, a nozzle opening that opens in a frustoconical shape is provided at the tip of the outflow pipe 4 so that the water in the blind opening 12 can be efficiently discharged.
【００２９】なお、図示の実施例は、竪円筒形タンクで
の事例を示しているが、水平円筒形タンクの上部に形成
した盲口１２に、その盲口１２に向かうとともに近接し
て流入管３又は流出管４の先端部を開口して形成して
も、前述の作用の欄で述べた作用効果は同様に得られ
る。Although the illustrated embodiment shows the case of a vertical cylindrical tank, the inflow pipe is formed close to the blind opening 12 formed in the upper part of the horizontal cylindrical tank as it goes toward the blind opening 12. Even if the tip end portion of the outflow pipe 3 or the outflow pipe 4 is opened, the action and effect described in the above-mentioned action column can be obtained similarly.
【００３０】[0030]
【発明の効果】叙述のように、竪円筒形タンクの下端部
に旋回羽根を組み付けた鏡板を形成するとともにその鏡
板の中心に近接して流入管又は流出管の先端部を開口し
た応急水タンクは、胴長に対して胴径の比率が大きな竪
円筒形タンクであっても、流入する新鮮な水が比較的短
時間に流出して常に入れ替わり、タンク内に停滞する死
水を生じることがなく、タンク内に効率良く旋回水流を
生じさせることができるともに、流水抵抗の圧力損失を
比較的小さくすることができるので、円滑に平常時の送
配水施設として使用することができ、緊急時に新鮮な水
を供給することができる。As described above, an emergency water tank in which the end plate of the vertical cylindrical tank having the swirl vanes assembled to it is formed and the tip end of the inflow pipe or the outflow pipe is opened close to the center of the end plate. Is a vertical cylindrical tank with a large ratio of body diameter to body length, fresh inflowing water flows out in a relatively short time and is constantly replaced, so that dead water does not stagnate in the tank. In addition, the swirling water flow can be efficiently generated in the tank, and the pressure loss due to water flow resistance can be made relatively small, so it can be smoothly used as a water transmission and distribution facility in normal times, and can be used fresh in an emergency. Water can be supplied.
【００３１】円筒形タンク本体の下部にピットを設ける
とともにそのピットに近接して流入管又は流出管の先端
部を開口した応急水タンクは、ピット内に停滞水の死水
が生じないため緊急時に新鮮な水を供給する応急供給源
に適し、平常時の円滑な送配水施設に適した水タンクと
して使用することができる。The emergency water tank, in which a pit is provided at the bottom of the cylindrical tank main body and the tip of the inflow pipe or the outflow pipe is opened close to the pit, does not cause stagnant dead water in the pit, so that it is fresh in an emergency. It can be used as a water tank suitable for an emergency supply source that supplies fresh water and suitable for smooth water distribution facilities in normal times.
【００３２】円筒形タンク本体の上部に盲口を設けると
ともにその盲口に近接して流入管又は流出管の先端部を
開口した応急水タンクは、盲口内に停滞水の死水が生じ
ないため緊急時に新鮮な水を供給する応急供給源に適
し、平常時の円滑な送配水施設に適した水タンクとして
使用することができる。The emergency water tank, which has a blind opening on the upper part of the cylindrical tank main body and the tip of the inflow pipe or the outflow pipe is opened in the vicinity of the blind opening, does not cause dead water in the blind opening so that the dead water does not occur. It can be used as a water tank suitable for an emergency supply source that sometimes supplies fresh water and suitable for smooth water distribution facilities in normal times.
【００３３】[0033]
【図１】 この発明に係る応急水タンクと水道本管の接
続例を一部簡略化して示した配管説明図。FIG. 1 is a piping explanatory view showing a partially simplified example of connection between an emergency water tank and a water main according to the present invention.
【図２】 この発明に係る応急水タンクの一実施例を一
部省略して示した縦断面説明図。FIG. 2 is a vertical cross-sectional explanatory view showing an embodiment of an emergency water tank according to the present invention with a part thereof omitted.
【図３】 図２のＡ−Ａ線からみた上部旋回羽根の配設
例を示した平面説明図。FIG. 3 is an explanatory plan view showing an arrangement example of upper swirl vanes viewed from the line AA in FIG. 2.
【図４】 図２のＢ−Ｂ線からみた下部旋回羽根の配設
例を示した平面説明図。FIG. 4 is an explanatory plan view showing an arrangement example of lower swirl vanes viewed from the line BB in FIG.
１ 応急水タンク ２ 水道本管 ３
流入管 ４ 流出管 ５ 地盤面 ６ 鏡板 ６Ａ 上部の鏡板 ６Ｂ
下部の鏡板 ７ 円筒胴 ８ 旋回羽根 ８Ａ 上部の旋回羽根 ８Ｂ
下部の旋回羽根 ９ ピット １０ 消火栓 １１
給水栓 １２ 盲口 １３ 蓋板 １
４ 管台 １５ マンホール1 Emergency water tank 2 Water main 3
Inflow pipe 4 Outflow pipe 5 Ground surface 6 End plate 6A Top end plate 6B
Lower end plate 7 Cylindrical body 8 Swirl blade 8A Upper swirl blade 8B
Lower swirl blade 9 Pit 10 Fire hydrant 11
Water tap 12 Blind mouth 13 Lid plate 1
4 pipes 15 manholes
Claims (3)
体に流入管及び流出管を配設した応急水タンクにおい
て、当該タンク本体の密閉した下端部を半楕円体形の鏡
板で形成するとともに当該鏡板の中心を軸として放射状
に複数枚の旋回羽根を鏡板の内面に組み付けて形成し、
当該旋回羽根を組み付けた鏡板の中心に向かうとともに
近接して上記流入管又は流出管の先端部を開口して形成
したことを特徴とする応急水タンク。1. In an emergency water tank in which an inflow pipe and an outflow pipe are arranged in a vertical cylindrical tank body whose upper and lower ends are hermetically sealed, the hermetically sealed lower end portion of the tank body is formed of a semi-ellipsoidal end plate. Formed by radially attaching a plurality of swirl blades to the inner surface of the end plate, with the center of the end plate as the axis.
An emergency water tank formed by opening the leading end of the inflow pipe or the outflow pipe toward the center of the end plate on which the swirl vane is assembled and in the vicinity thereof.
設した流入管及び流出管と、上記タンク本体の下部に下
方に突出して凹形状に形成したピットを設けたタンクに
おいて、当該ピットに向かうとともに近接して上記流入
管又は流出管の先端部を開口して形成したことを特徴と
する応急水タンク。2. A tank provided with an inflow pipe and an outflow pipe arranged in a cylindrical tank body whose both ends are closed, and a pit formed in a concave shape at a lower portion of the tank body, the pit being formed in the pit. An emergency water tank, which is formed by opening the front end of the inflow pipe or the outflow pipe as it approaches and approaches.
設した流入管及び流出管と、上記タンク本体の上部に蓋
板付きの管台を上方に延出して形成した盲口を設けたタ
ンクにおいて、上記盲口に向かうとともに近接して上記
流入管又は流出管の先端部を開口して形成したことを特
徴とする応急水タンク。3. An inflow pipe and an outflow pipe arranged in a cylindrical tank body whose both ends are closed, and a blind port formed by extending a pipe stand with a cover plate upward at the upper part of the tank body. In the tank, the emergency water tank is formed by opening the front end portion of the inflow pipe or the outflow pipe toward the blind port and close to the blind port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19408695A JP3646359B2 (en) | 1995-07-07 | 1995-07-07 | Emergency water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19408695A JP3646359B2 (en) | 1995-07-07 | 1995-07-07 | Emergency water tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0924991A true JPH0924991A (en) | 1997-01-28 |
| JP3646359B2 JP3646359B2 (en) | 2005-05-11 |
Family
ID=16318730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19408695A Expired - Fee Related JP3646359B2 (en) | 1995-07-07 | 1995-07-07 | Emergency water tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3646359B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006335449A (en) * | 2005-06-03 | 2006-12-14 | Nomura Micro Sci Co Ltd | Ultrapure water storage tank |
| CN111828999A (en) * | 2020-07-24 | 2020-10-27 | 饶俊杰 | Smoke-fire separation device for waste incineration and use method thereof |
-
1995
- 1995-07-07 JP JP19408695A patent/JP3646359B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006335449A (en) * | 2005-06-03 | 2006-12-14 | Nomura Micro Sci Co Ltd | Ultrapure water storage tank |
| CN111828999A (en) * | 2020-07-24 | 2020-10-27 | 饶俊杰 | Smoke-fire separation device for waste incineration and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3646359B2 (en) | 2005-05-11 |
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