JPS6095016A - Rising and falling device for weir - Google Patents

Abstract

PURPOSE:To ensure the motion of a weir, by a method wherein, when water level is lowered to a fall-down level, a starting siphon pipe from a hydrostatic pond creates a siphon, and a siphon pipe from a pressure regulating tank is caused to create a siphon. CONSTITUTION:When a water level in a hydrostatic pond 3 is raised and a distance from such water level to the horizontal part of a starting siphon pipe 20 becomes equal to a distance between the horizontal part of a water level in a pressure regulating tank 9 and the horizontal part of a siphon pipe 15, the starting siphon pipe 20 creates a siphon. Thereafter, since the discharge side of the starting siphon pipe 20 is communicated with the discharge side of the siphon pipe 15, the air in the two siphon pipes 20 and 15 is easily bled, and the siphon pipe 15 also creates a siphon. Thereafter, water in the hydrostatic pond 3 and the pressure regulating tank 9 is drained to a drain tank 14, and water in a weir 1 is drained through a water flow pipe 11 and the siphon pipe 15, and the weir is forced to fall down. When a water level is raised to a rising water level, water is fed through a water feed pipe 7 from a water storing tank 6 to the pressure regulating tank 9, and water is fed by a pressure to the weir 1 through a water feed pipe 7.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a weir undulation device which allows a weir made of a flexible material to be raised and lowered freely, and in which water is used as the expansion medium of the weir. be.

(Prior art) In the case of a conventional siphon pipe that uses only a rubber weir, the water pressure acting on the rubber weir increases due to the rise in the water level upstream of the rubber weir during a flood, and the water level inside the siphon pipe increases accordingly. When the water rose and overflowed the top of the siphon tube, a siphon action crab was formed and the water in the rubber dam was discharged by the siphon tube, causing automatic lodging. However, there are errors in the initial water pressure setting for expanding the rubber dam and overflow of 7J during floods.
(Due to this, the water pressure in the rubber layer fluctuated, making it unstable for water to continuously overflow the top of the siphon pipe, making it extremely uncertain whether the siphon would form.) The set water pressure is higher than the depth of the lodging water level, and is generally 1.5) 18 degrees, assuming the weir height H.

In order to eliminate such uncertainties in siphon formation, it is necessary to increase
A packet method was used in which the pulp was opened by rotating a valve with a water mold. However, with this method, it is necessary to drain water from the rack (reset) before preparing to stand up, and the lodging mechanism has a mechanical part, so there is a risk that it may become inoperable due to rust, etc., and may not fall automatically. There were problems such as.

(Objective of the Invention) The present invention has been made in view of the problems existing in the above-mentioned prior art.The weir can be erected without any particular reset, and there is no mechanical part in the lodging mechanism, so that the lodging water level can be adjusted. The object of the present invention is to provide a weir levitation device which operates automatically and does not malfunction.

(Structure of the Invention) In order to achieve all of the above objects, the structure of the present invention includes a hollow weir made of a flexible material to partition the entire river 1 into upstream and downstream areas, and a water conduit pipe for guiding the upstream (MljOX). a still water pond; a water storage tank connected to the still water pond through a water pipe;
a pressure regulating tank communicating with the water storage tank via a water pipe and communicating with the weir via a water pipe; a discharge tank communicating with the pressure regulating tank via a siphon pipe; The spout fitting is characterized by being provided with a starting siphon pipe connected to the discharge side of the siphon pipe located in the discharge tank.

With this configuration, when the overflowing water level is reached, the starting siphon pipe from the still water pond will fully start siphoning, and the siphon action of the siphon pipe from the pressure regulating tank will be performed for km, and the siphon action of this siphon pipe will cause the pressure regulating cypress With great effort, the water in the layer is discharged into the discharge tank, and automatic lodging is performed, and when the water level reaches the standing water level, the water pipe is removed from the storage 7X tank. The water is then sent to a pressure regulating tank, and is then sent under pressure to a weir via a water pipe.

(lol example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

To explain mainly using Figure 1, 1 is a hollow weir made of rubberized cloth to separate the entire river into upstream and downstream areas, and 2 is a weir 1.
No. 1#ll+'! This is a clamp device that is fixed to the bottom of the river. As shown in Figures 10 and 11, the land near the river 711H has 3 ml of still water, 6 water tanks,
A pressure regulating tank 9 and a discharge tank 14 are provided. The 1o water pond 3 is equipped with a water conduit 4 opened upstream of the weir 1. Still water pond 3
The circle is partitioned by a Yaguchi weir 5 having a communication hole 5, and a second still water pond 3 is formed. The water storage tank 6 is connected to the still water pond 3 through a water pipe 7 equipped with a submersible pump 8. Pressure adjustment 4
119 communicates with the water storage tank 6 via a water pipe 10 equipped with a submersible pump 12, and communicates with the inside of the weir 1 via a water pipe 11. Between the still water pond 3 and the water tank 6, there is a still water pond 3.
A flow path 13 is provided with a check valve 13 through which water flows only from the enclosure 1j to the water storage tank 6 side. The discharge tank 14 is the pressure regulating tank 9
The pressure regulating tank 9 is connected to the pressure regulating tank 9 through the siphon pipe 15 whose spout is fully opened inside.
It is communicated with. The discharge tank 14 and the downstream side of the river JllH are communicated by a discharge pipe 16. 17 is a siphon breaker, 118 is a siphon breaker valve, 19
is a manual lodging valve. Further, the discharge side of the starting siphon 20 whose mouth is fully opened in the still water pond 3 is connected to the discharge side of the siphon pipe 15 located in the discharge tank 14 .

Note that a indicates the undulating water level, b indicates the water storage level, and C indicates the upright level.

The above is the configuration of one embodiment, but the operation will be explained next.

As shown in FIG. 2, the water level in the still water pond 3 follows the water level on the upstream side of the river, and when the water level is Ll, neither the starting siphon pipe 20 nor the siphon pipe 15 is in operation.

When the water level L2 of the still water 1't123 rises to the point where it coincides with the overturning water level a, the situation is as shown in FIG.
The air inside becomes bubbles and is discharged from the starting siphon tube 2.
0 begins to form a siphon.

As the lodging start time progresses further, the water level in the still water pond 3 becomes equal to the distance to the horizontal part of the starting siphon pipe 20, and the water level in the pressure regulating tank 9 and the distance to the horizontal part of the siphon pipe 15 become equal, as shown in FIG. The state will be as follows, and the starting siphon %c
2 By forming the siphon 7 of Q, the starting siphon tube 2
The discharge side of the siphon tube 15 is communicated with the discharge i.mu.mj of the siphon tube 15, which makes it easy to remove air from each siphon tube n, and the air inside the siphon tube 15 is also discharged as arousal. 15 also begins the formation of Saiphon.

Furthermore, in addition to the increase in the water pressure of the Kagetsuru 1 water overflowing the weir, the amount of negative pressure in the starting siphon tube 20 also acts on the siphon tube 15, so that the siphon formation of the siphon tube 15 is easy. As shown in FIG. 5, the water in the still water pond 3 and the pressure regulating tank 9 is discharged into the discharge tank 14 due to the siphon formation of the starting siphon pipe 20 and the siphon pipe 15. The discharge of water from the still water pond 3 is reduced by the cut-out weir 5, and mainly water from the pressure regulating tank 9 is discharged. As a result, the water in the weir 1 is discharged through the water pipe 11 and the siphon pipe 15.

When most of the water in the weir 1 has been drained out, the state will be as shown in FIG. 6.

The water level in the river basin falls due to the collapse of weir 1, and the water level in the still water pond 3 is averaged by passing through all the communication holes 5 of the weir 5. When the water level reaches the state shown in Figure 7, that is, the standing water level, the still water pond 3 Since the water level also falls to the spout of the starting siphon tube 20, air is supplied from the spout into the starting siphon tube 20, and the siphon action of the starting siphon tube 20 and the siphon tube 15 is stopped.

When standing up, the submersible pump 12 is operated to supply water to the pressure regulating tank 9 through the fully filled water pipe 10 in the water storage tank 6 so that the state shown in FIG. 8 is achieved. Note that each submersible pump may be operated automatically, for example, in conjunction with a water level gauge. supplied f
c The water in the pressure regulating tank 9 is forced into the weir 1 through all the water pipes 11. When the water level in the water tank 6 becomes lower than the water level in the still water pond 3, the check valve 13 opens, and Kagetsuki 1 water is supplied to the water tank 6 through the water conduit 4 and the still water pond 3. When the water level in the pressure regulating tank 9 reaches a predetermined level, the submerged ice pump 12 is stopped.

Finally, water is completely supplied to the water tank, and the state is as shown in FIG. 9. -T,! il: Well, when the water levels in the still water pond 3 and water tank 6 both reach the storage level, the submersible pump 8 will be activated.
Water is supplied to the water storage tank 6 via the water transmission pipe 7 in the still water pond 3. The check valve 13' is closed, and when the water level in the water tank 6 reaches a predetermined level 5, the submersible pump 8 is completely stopped.

Nao, in Figure 11, AFi operation room, b is management path,
C indicates the outside of the embankment, and D indicates the entire inside of the embankment. (Effects of the invention) As described above, the present invention has the following effects.

(a) Since the overflowing water level is detected in a still water pond with a stable water level and the overflowing water level is continuously maintained, it is easy to form a siphon in the starting siphon pipe.

(b) Since the siphon formation of the starting siphon induces the siphon formation of the siphon tube,
The siphon formation of the siphon tube also occurs very smoothly.

(c) After a flood, when the water level of the river drops to the standing water level, both the starting siphon pipe and the siphon pipe stop, so the weir can be safely maintained in its lodging position.

) Even if the water level has not fallen to the standing water level and the raising operation is performed, the siphon pipe is still operating and the weir will not be raised, so there is no risk of erroneous operation during raising.

(E) Since there are no mechanical parts in the lodging mechanism, there is no malfunction due to rust, etc.

(F) A predetermined amount of water is pooled in the water tank, making it easy to stand up.

It should be noted that the following advantages arise in the case of this embodiment.

(b) When the starting siphon pipe and the siphon pipe are in operation, the flow rate to the starting siphon pipe is restricted because a crater weir is provided in the still water pond.

(b) The rising time can be determined only by the capacity of the submersible pump that supplies water to the pressure regulating tank.

(c) When the water level in the tank in storage 7 becomes lower than the water level in the still water pond, the check valve will automatically open and river water will be supplied to the water tank. It only needs to be capable of pumping all of the water stored up to a predetermined water level, so it can be small-scale.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a reservoir showing the structure of an embodiment of the present invention, Fig. 2 is an explanatory diagram of a reservoir for explaining the action when storing water, and Fig. 3 is an explanatory diagram for explaining the action during retirement. Figure 4 is an explanatory diagram when the robot is collapsed, Figure 5 is an explanatory diagram when it is collapsed, Figure 6 is an explanatory diagram when it is fully collapsed, and Figure 7 is an explanatory diagram to explain all the functions when standing up. An explanatory diagram, FIG. 8 is an explanatory diagram when standing up, and FIG. 9 is an explanatory diagram to explain the action when water is stored.
FIG. 10 is an overall plan view of one embodiment, and FIG. 11 is a sectional view taken along line XI-XI and 1191 in FIG. 10. 1... Weir 3... Still water pond 4... Water pipe 6... Water tank 7... Water pipe 9... Pressure regulating tank 10°° Water pipe 11... Water pipe 14. ...Discharge tank 15...Siphon tube 20...
Start-up siphon tube patent applicant: Toyo-Kyogyo Co., Ltd.

Claims (1)

[Claims] (1) A weir with a middle wall made of flexible material to separate the upstream and downstream parts, a still water pond equipped with a water conduit to guide the upstream X, and the still water pond and the water pipe A water tank connected with all valves, and a water pipe between the water tank and the water pipe? A pressure regulating tank that communicates with the weir through a water pipe, a discharge tank that communicates with the pressure regulating tank via a siphon pipe, and a spout fitting in the still water pond, and the discharge A weir levitation device comprising a starting siphon pipe connected to the siphon pipe located in the tank.