JPS6235033U

JPS6235033U -

Info

Publication number: JPS6235033U
Application number: JP12706585U
Authority: JP
Priority date: 1985-08-19
Filing date: 1985-08-19
Publication date: 1987-03-02

Description

[Brief explanation of the drawing]

第１図本考案のゲートの全体図である。弁体２
、に貫通口３、を設け送水装置４、逆流防止装置
５、をとりつけ、弁体が昇降出来る構造である。
第２図は水面勾配の少ない河川の縦断図面である
。上流地点の標高と下流地点の標高の差がほとん
ど無く、従つて洪水時に水面勾配がとれず、下流
に設置している排水ポンプ井への流入量が少ない
。第３図は上記河川の縦断図に本考案のゲートを
数箇所設置した図である、水面勾配を１／１００
０〜１／３０００とれば希望する流速が得られ、
排水ポンプ井えの、流入水の水深が深くなり、大
量の雨水が流入しています。第４図は河川にこの
考案のゲートを設置した状態で、運転前である。
上流側の水位も下流側の水位も変動ない。第５図
は河川にこの考案のゲートを設置して、送水装置
を運転した状態であり、下流側の水位は上昇し、
上流側の水位は下降しています。１……ゲート、２……弁体、３……貫通口、４
……送水装置、５……逆流防止装置、６……河川
堤防、７……川底、８……上流側水面、９……下
流側水面、１０……塵取用スクリーン、１１……
排水ポンプ、１２……昇降装置。 FIG. 1 is an overall view of the gate of the present invention. Valve body 2
, a through hole 3 is provided in the valve body, and a water supply device 4 and a backflow prevention device 5 are installed, and the valve body can be moved up and down.
Figure 2 is a longitudinal cross-sectional view of a river with a small water surface gradient. There is almost no difference in elevation between the upstream point and the downstream point, so the water surface gradient cannot be maintained during floods, and the amount of inflow into the drainage pump well installed downstream is small. Figure 3 is a longitudinal cross-sectional view of the river with several gates of the present invention installed, and the water surface gradient is set to 1/100.
If it is 0 to 1/3000, the desired flow rate can be obtained,
The depth of the inflow water into the drainage pump well has become deeper, and a large amount of rainwater is flowing in. Figure 4 shows the gate of this invention installed in a river before operation.
The water level on the upstream side and the water level on the downstream side do not change. Figure 5 shows a state in which the gate of this invention is installed in a river and the water supply system is operated, and the water level on the downstream side rises.
The water level upstream is falling. 1... Gate, 2... Valve body, 3... Penetration port, 4
... Water supply device, 5 ... Backflow prevention device, 6 ... River embankment, 7 ... River bottom, 8 ... Upstream water surface, 9 ... Downstream water surface, 10 ... Dust removal screen, 11 ...
Drainage pump, 12... Lifting device.

Claims

[Scope of utility model registration request]

A gate in which a forced drain port 3 is provided through a valve body 2, and a valve body is set in which a water supply device 4 and a backflow prevention device 5 are attached to the opening.