JPS6029476Y2 - Buoy type surface water intake device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a buoy-type surface water intake device, and its purpose is to protect the water intake buoy from freezing by making it easy to float and sink the water intake buoy.

A buoy-type surface water intake device floats a water intake buoy on the water surface of a reservoir such as a dam, takes warm water or clear water near the lake surface into the buoy, and guides it through a water conduit to a fixed pipe installed at the bottom of the reservoir. It is something.

Buoy-type surface water intake devices for agricultural production departments often have little need for water intake and discharge in the winter, especially in cold regions where there is a lot of snow and the surface of the dam lake freezes. Significant.

In such a place, if the water intake buoy is floating on the lake surface, an unexpected force will be applied to the water intake buoy due to freezing on the lake surface, and there is a possibility that not only the water intake buoy itself but the entire device will be seriously damaged.

In order to prevent such a situation from occurring, it is best to submerge the water intake buoy below the water surface in advance during the freezing season.

The present invention has been devised in view of the above, and embodiments thereof will be described below with reference to FIGS. 1 to 4.

Reference numeral 1 indicates a reservoir, a concrete foundation 2 is constructed at the bottom of the reservoir, and a starting end of a fixed pipe 3 is protruded onto this foundation 2.

The fixed pipe 3 is made of iron pipe and is connected to the discharge pipe.

4 indicates the water intake buoy.

The water intake buoy 4 has a water intake section 6 at the bottom within its surrounding wall 5,
In this water intake section 6, there is a water intake 6A, a water inlet 6B, and a rectifier plate 6C.
are formed at the required locations.

Also, within the surrounding wall 5, a first tank 7 is formed above the water intake section 6, and a second tank 8 and a third tank 9 are formed in the center of the first tank 7, stacked one on top of the other. .

The bottom plate 7A of the first tank 7 is inclined so that the center is at the lowest level, and the bottom plate 8 of each of the second tank 8 and the third tank 9 is
A and 9A are provided in an inclined manner so that one side is at a lower position.

Input and drain pipes 10A, IIA, 12 are installed at the lowest positions of these first tank 7, second tank 8, and third tank 9, respectively.
A, Inlet and exhaust pipes 10B, IIB, 12 at each highest position, respectively
B is connected.

Furthermore, a pair of left and right sealed tanks 13A and 13B are symmetrically formed on both sides of the second tank 8 and the third tank 9, and a sealed tank 13C is also formed above the third tank 9.

Reference numeral 14 denotes a water conveyance pipe, which is connected to the water intake buoy 4 and the starting end of the fixed pipe 3 via hinges 15 and 16 whose starting and terminal ends are provided with mutually parallel horizontal rotation axes.

The water conduit 14 and the water intake section 6 of the water intake buoy 4 are communicated with each other by a communication pipe 17, and the water conduit 14 and the fixed pipe 3 are communicated with each other by the communication pipe 1.
8 communicates with each other.

In other words, these communication pipes 17 and 18 have a flexible part 1 in the middle part.
7A and 18B, which are provided between the water conduit 14 and the water intake buoy 4 or the fixed pipe 3 in the vicinity of each of the hinges 15 and 16.

Communication pipe 17, 18, water conveyance pipe 14, water intake buoy 4, fixed pipe 3
A swivel joint 17B having a rotation axis parallel to the rotation axis of the hinge 15, 16 is provided at each connection portion with the hinge 15.
, 18B are interposed.

With this configuration, the water guide pipe 14, the water intake buoy 4, and the fixed pipe 3 are connected in a communicating state so as to be relatively swingable around the horizontal axis.

In addition, concrete foundations 19A and 19B for connecting the stays are constructed on both sides of the concrete foundation 2, and chain stays 2OA and 20B are stretched between these concrete foundations 19A and 19B and the starting end of the water pipe 14. Ru.

The above-mentioned three inlet/outlet pipes 10A, IIA, 12A and three inlet/outlet pipes 10B, IIB, 12B are connected to the water intake buoy 4.
It is extended from the bottom of the water pipe 14 along the lower surface of the water conduit 14, and is laid or buried over a wall or mountain area 22 to the nearest administrative road 21.

These are then connected to the water supply device 23A or the air supply device 23B.

Filling and draining pipes 10A, 11A, 12A and filling and draining pipes 10B,
The parts corresponding to the hinges 15 and 16 in IIB and 12B are made of high-strength and highly durable flexible tubes (not shown).

) shall be intervened.

A frame 2 is installed at the bottom of the reservoir 1 via a concrete foundation 24.
5 is installed, and a cushioning structure 2 such as rubber shock absorbing material is installed on this frame 25.
6 is provided.

At the time of water intake, the first tank 7, the second tank 8 and the third tank
Tank 9 has been completely drained.

Therefore, the water intake buoy 4 has risen to a level where its water intake port 6A can take in warm water and clear water from the water surface (
(Fig. 1 imaginary line).

Water intake is carried out in this state, from the water intake port 6A to the water intake section 6.
The hot water or clear water that has entered is discharged through the water introduction port 6B, the communication pipe 17, the water introduction pipe 14, the communication pipe 18, and the fixed pipe 3 in this order.

For fluctuations in water surface level, water pipe 14, water intake buoy 4,
The fixed tube 3 automatically follows by relative swinging around the horizontal axis, and the chain stay 20
This can be counteracted by the actions of A and 20B.

When it becomes necessary to sink the water intake buoy 4 below the water surface during the freezing season, water is sequentially poured into the first tank 7, second tank 8, and third tank 9 to sink the water intake buoy 4.

For example, by pouring into the first tank 7 and the second tank 8, the water is first made to reach near the top of the closed tank 13C (using a counterweight or the like if necessary).

), then water is poured into the third tank 9, thereby causing the water intake buoy 4 to start settling.

In this way, the water intake buoy 4 sinks at an almost constant speed regardless of the water level depending on the difference between its own weight and the buoyant force it receives, and lands on the hood 26 (see Figure 1). solid line).

If the water intake buoy 4 is sunk in this way, the water intake buoy 4 and its related equipment will not be adversely affected by freezing.

When floating the water intake buoy 4, the procedure used when sinking is reversed.

That is, by draining the third tank 9, the water intake buoy 4 is floated.

If there is a sunken tree etc. on the water intake buoy 4 or the water conveyance pipe 14,
If this is preventing the intake buoy 4 from floating smoothly,
In addition to the third tank 9, the second tank 8 is drained to give even greater buoyancy to the water buoy 4.

After the water intake buoy 4 floats to the surface, the first tank 7 is drained to maintain the water intake buoy 4 at a predetermined level of water intake, in preparation for surface water intake.

Pour water into the first tank 7, second tank 8, and third tank 9 described above is performed as follows.

For example, water is injected into the first tank 7 using a water pump (not shown).

), water is poured into the first tank 7 through the filling and draining pipe 10A, and at the same time, the inside of the first tank 7 is exhausted through the filling and draining pipe 10B.

In this case, the water injection may be carried out by natural water injection using the difference in water head pressure.

On the other hand, the waste water from the first tank 7 is injected into the first tank 7 through the water filling pipe 10B, and at the same time is drained through the water filling pipe 10A.

In these cases, the water supply device 23A or the air supply device 23B is operated as necessary.

The same applies to the second tank 8 and the third tank 9.

As explained above, according to the present invention, the water intake buoy can be sunk or floated by only the extremely simple operation of pouring water into the tank of the water intake buoy.

Therefore, the water intake buoy and the entire water intake device can be easily and effectively protected from freezing etc. in cold regions.

Moreover, since the configuration is simple, just equipping the water intake buoy with a tank that can fill and drain water, there is almost no possibility of occurrence of a pull-up.

In addition, the bottom plates of the first to third tanks of the water intake buoy are configured so that the center is at the lowest level or one side is at the lowest level, and the water supply and drainage pipes are connected to the lowest level. At the same time, the injection and exhaust pipes are connected to the highest positions of each tank, so that each tank can be completely filled and drained.

Furthermore, since the second tank and the third tank are stacked in the center of the first tank, it is possible to maintain good stability during floating and sinking.

Moreover, since the tank for adjusting the floating and sinking is divided into the first to third tanks, fine adjustment of the floating and sinking speed etc. can be performed.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention, where Figure 1 is a vertical side view, Figure 2 is a perspective view, Figure 3 is an enlarged vertical side view of the water intake buoy, and Figure 4 is an enlarged vertical side view of the water intake buoy. FIG. 4 is a cross-sectional view taken along line X-X in FIG. 3; 3...Fixed pipe, 4...Water intake buoy, 6...
... Water intake section, 7 ... First tank, 8.
...Second tank, 9...Third tank, I
OA, IIA, 12A...... Filling and draining pipe, I
OB, IIB, 12B... Inlet and exhaust pipe, 14...
... Water pipe, 15, 16 ... Hinge, 17
゜18...Connection't, 17B, 18B...
... Swivel joint, 23A ... Water supply device, 23B ... Air supply amount.

Claims (1)

[Scope of utility model registration request] It has a fixed pipe provided at the bottom of the reservoir, a water intake buoy, and a water pipe provided between the fixed pipe and the water intake buoy, and the starting end and the terminal end of the water pipe are connected to the water intake section of the water intake buoy and the water intake buoy, respectively. A buoy-type surface water intake device which is connected to a fixed pipe in a communicating state so as to be able to swing relative to each other around a horizontal axis, the water intake buoy being connected to the water intake compartment and the upper part of the water intake compartment, A first tank configured so that the center is at the bottom, and a second tank stacked up in order at the center of the first tank, each configured so that one side of the bottom plate is at the bottom. A tank, a third tank, a pair of left and right sealed tanks provided on both sides of each of the second tank and third tank, and a sealed tank provided above the third tank, Furthermore, a filling and draining pipe is connected to and provided at the bottom of each of the first to third tanks, and
- A buoy-type surface water intake device characterized by having an inlet and exhaust pipe connected to each highest position of the third tank.