JPS5915111A - Rising and falling device for dam - Google Patents

Abstract

PURPOSE:To eliminate the need for a water conveyance tube for detecting the water level in an operation chamber by providing an air blower to supply air through an air supply tube, having a check valve and an inside falling valve for the operation chamber, and an operator pit leading through a mouthless dam and a siphon tube to flowing water to a baggy dam. CONSTITUTION:In a baggy dam 1 made of a flexible material, an air blower 5 to send air through an air supply tube with a check valve 6 and an inside falling valve 7 for an operation chamber leading to the open air and a mouthless dam 10 with an excessive air exhaust tube 12 leading to flowing water on the upstream side are provided. On the downstream side, an operator pit 3 provided with an exhaust tube 14 leading to flowing water through a two-stage type siphon tube 11, a water sealing tube 15, and a water level detection tube 17 during the rising and falling periods is provided. When the amount of flowing water upstream is increased and the dam 1 reaches a falling water level (a), water flows from a manual falling valve 18 into the detection tube 17. As a result, the tube 11 operates with the lower stage portion 11a, water level in the exhaust tube 14 is lowered at the same time as the water level in the pit 3 is lowered, compressed air in the dam 1 is discharged through the air supply tube 8, the switch valve 13, and the exhaust tube 14, and the dam 1 is thus automatically fallen.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an all-pneumatic bag-shaped weir made of flexible material;
This invention relates to a weir raising and lowering device that is lowered and raised by the inflow and outflow of air.

Conventionally, there are two types of undulating devices for this type of weir, such as the kerat type and the float type. However, both the packet type and the float type are designed to introduce water into the river's water input operation chamber. There was a problem in that lower civil engineering work was required, which increased the construction cost.Also, when standing up, there was the hassle of having to reset the bucket/soto, float, and standing control device to the stand-up preparation state. .Also, since the lodging mechanism has mechanical operation,
There was a risk that it would get stuck in rust and fall down.

The present invention has been made in view of the above problems, and
It is not necessary to install water pipes for water level detection in the operation room, which significantly reduces civil engineering costs. Also, on Embankment-H, the weir can be controlled while observing the weir, and the weir can also be controlled in the operation room. Ease of operation with ease of lodging, and furthermore,
It is an object of the present invention to provide a weir raising device which allows the weir to be raised by pumping air χ if the water level is below the rising water level, thereby eliminating the need for resetting a lowering mechanism and excess air pressure.

For this reason, the structure of the weir undulation device of the present invention is such that a bag-shaped weir made of a flexible material is connected to a stop valve and an air supply pipe that communicates with the atmosphere and has an air supply pipe having a lodging valve in an operation chamber. It consists of a blower for pressure-feeding, and an operating device pit that communicates with the flowing water on the second stream side through a Yaguchi weir and with the flowing water on the downstream side via a two-stage siphon pipe, is equipped with a surplus air exhaust pipe 7 having a switching valve and communicating with the blast pipe, and also has an exhaust pipe within the operating device focus that communicates with the surplus air exhaust pipe and has a U-shaped lower portion. a water sealing pipe whose lower part communicates with the lower part of the exhaust pipe, whose upper part communicates with the siphon pipe, and whose lower part has a U-shaped communication pipe; It is characterized in that it is provided with a U-shaped lodging/erecting water level detection tube 7 which communicates with the Difmen tube and has a manual lodging valve at the other end.

An embodiment of the present invention will be explained below based on the drawings.

In Figures 1 and 2, 1 is a bag-shaped weir made of flexible material, 2 is an operating shed, 5 is an operating device bit attached to the slope 4, and 85 is inside the operating shed 2. 9 is a blower installed in the control shed 2, and is used to supply air under pressure to the weir 1 through an air pipe 8 having a stop valve 6 and a collapse valve 7 in the control room, which are also installed in the operation shed 2.
It is the driving source of The operating device Pinotoro communicates with the upstream water inlet through a cutout 10, and with the downstream water B through a two-stage siphon pipe 11. Reference numeral 12 designates a surplus air exhaust pipe that extends into the cutout portion 10, has an open end, has a switching valve 13, and communicates with the air supply pipe 8;
is an exhaust pipe that communicates with the surplus air exhaust pipe 12 and has a U-shaped lower portion. The branch portion 14a at the lower part of the exhaust pipe 14 is located slightly lower than the open end 12a of the surplus air exhaust pipe 12.

Reference numeral 15 is a water sealing pipe having a lower part communicating with the lower part of the exhaust pipe 14, an upper part thereof communicating with the siphon pipe 11, and a lower part thereof having a U-shaped communicating pipe 16χ.

In addition, 17 has one end connected to the water sealing pipe 15 and the siphon pipe 11.
A U having 18 manual overturning valves at the other end communicating with the
It is a reclining/erecting water level detection tube in the shape of a letter, and its lower end part 17
a is located at the same height as the upright water level C, and the manual lodging valve 18 is located at the same height as the lodging water level a. Also, 2
The height of the lower part 11a of the stage-type siphon pipe 11 is slightly lower than the water storage level.
The manual lodging valve 18 can be operated from the ground, and
The height positions of the one side opening portion 14b of the exhaust pipe 14, the upper opening portion 16a of the communication pipe 16, the notch portion 10a of the notch portion 10, etc. are set at predetermined positions for operational purposes.

Further, 19 indicates a riverbed, and 20 indicates a clamping device that holds one weir.

One embodiment of the present invention has the configuration described above,
Next, its operation will be explained using FIGS. 3 and 4.

Now, as shown in Fig. 2, if the upstream flowing water A is at the reservoir level or slightly higher than the reservoir level 5], the upstream flowing water A flows into the operating device 3 from the cutout 10 and flows into the siphon. It should be discharged downstream from the lower part 11a of the pipe 11. When the weir 1 is in the upright state, the stop valve 6 and the operating chamber lodging knob 7 are closed, and the switching valve 13 and the manual lodging valve 18 are open.

From the state shown in Fig. 2, when the flow of water on the upstream side increases and reaches the lodging water level a, the manual lodging valve 18 causes the water to collapse and
The water flows into the upright water level detection tube 17. Then, the siphon tube 11 operates together with the lower part 11a, and the operating device
) The water level in 3 decreases. At this time, the water level in the exhaust pipe 14 also decreases, the compressed air in the salt 1 is discharged through the air supply pipe 8, the switching valve 1 filter, and the exhaust pipe 14, and the weir 1 automatically collapses (see Figure 3). .

In this case, even if the stop valve 6 and the manual lodging valve 18 are closed and the operation chamber lodging valve 7 is opened, the weir 1 will collapse. Although this is an artificial lodging, water level relations etc. are the same as in the case of automatic lodging. However, even in this case, the lower part 11a
Overflow from is necessary.

Next, when the flowing water on the upstream side decreases and reaches the standing water level C, the water in the falling/standing water level detection tube 17 is discharged into the siphon pipe 11, and the atmosphere flows in from the manual falling valve 18, so that the siphon pipe The water inside 11 will fall. Also, water sealing pipe 1
The water in the exhaust pipe 14 also falls, sealing the inside of the exhaust pipe 14. In this state, the stop valve 67 is opened and air is forcedly sent from the blower 5 to the weir 1. At this time, the switching valve 1o, the manual lodging valve 1
8 is open, and the operation chamber lodging valve 7 is closed. Therefore, the air from the blower 5 does not go to the exhaust pipe 14,
It is forced to be fed to the weir 1 through the air pipe 8. In addition, since the opening end 12a is located slightly higher, the excess air can be removed.
Excrete from the internuclear end 12a. If weir 1 rises,
11- Close the valve 6 and stop the air pressure 7 (see Figure 4).

According to the present invention as described above, it is no longer necessary to install a water conduit pipe for water level detection in the operation room, thereby achieving a significant reduction in civil engineering costs. However, the weir can be raised again by seven times, and the weir can also be controlled in the operation room, making it easy and convenient to operate.Furthermore, if the water level is below the rising water level, air can be pumped to prevent the weir from rising. This eliminates the need to reset the lodging mechanism and surplus air pressure, and since no valve is used during automatic lodging, there is no need to use the mechanical lodging device.
It is possible to provide a weir levitation device that has multiple effects, such as being able to reliably lodge a weir without causing conditions such as inability to lodge due to rust or the like.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is a schematic diagram thereof, Fig. 2 is a detailed diagram thereof, Fig. 3 is a detailed diagram for explaining the lodging process, and Fig. 4 is a detailed diagram for explaining the raising process. It is a detailed diagram of explanation 1. 1... Bag-shaped weir 3... Operating device piy) 5
...Blower 6...Stop valve 7...
Operation chamber lodging valve 8... Air pipe 10... For cutout part...
Siphon pipe 11a...lower section 12...excess air exhaust pipe 13...switching valve 14...exhaust pipe
15... Water sealing pipe 16... Communication pipe
17... Lodging/erecting water level detection tube 18... Manual lodging valve Patent applicant: Toyo Kingyo Co., Ltd.

Claims (1)

[Claims] (1) A bag-shaped weir made of a flexible material is connected to the stopper pulp and the atmosphere, and is equipped with a blower that pressurizes air through an air pipe 7 having an overturning valve 7 in a control chamber, and an inlet weir for flowing water on the upstream side. It also consists of an operating device bit that communicates with the downstream flowing water via a two-stage siphon pipe.
Furthermore, the inlet weir is equipped with a surplus air exhaust pipe that has a switching valve and communicates with the air supply pipe, and the operating device pit is equipped with a surplus air exhaust pipe that communicates with the surplus air exhaust pipe and has a U-shaped lower portion. a water-sealing pipe having a lower part communicating with the lower part of the exhaust pipe, an upper part communicating with the siphon pipe, and a lower part forming a U-shape; 7. A weir levitation device characterized in that the weir comprises a U-shaped lodging/erecting water level detection tube communicating with the water sealing pipe and the siphon pipe and having a manual lodging valve 7 at the other end.