JPS6016661Y2 - Selective water intake device - Google Patents

Description

[Detailed description of the invention] This invention relates to a device that can selectively take water from a water layer at any depth when taking water for base use from a dam, reservoir, etc.

Conventionally, devices of this type as shown in FIGS. 1 and 2 are known, but in this device, the door body 22 faces the water guide surface of the water intake part 21 and has multiple stages along the vertical direction, and the water guide Since they are arranged in multiple rows along the direction, door grooves 23 and hoisting devices are required according to the number of door bodies, which makes the structure complicated, increases manufacturing costs, and is not economical. There are disadvantages such as difficulty in creating a watertight space.

This invention eliminates the drawbacks of the conventional ones mentioned above, makes it possible to selectively take water from the water layer at any depth by utilizing the difference in density of water inside and outside the door body, and has a simple structure and is inexpensive. The purpose of the present invention is to provide an economical selective water intake device that can be manufactured in the following manner.

This invention will be explained with reference to embodiments shown in the drawings.

In Figures 3 and 4, reference numeral 1 denotes a water intake section protruding from the front surface of the dam body 2, and a vertical door groove 3 is provided on the opposite inner wall of the water intake section 1.
is formed.

In the door groove 3, facing the water guide surface of the water intake part 1, a lifting beam 4 and a plurality of door bodies 5 are connected in a row along the vertical direction via hanging rods 6 and 7, respectively. It is suspended by a wire rope 9 suspended from a pulley 8 provided at the upper end thereof so as to be able to rise and fall freely.

The upper end of the wire rope 9 is connected to a hoist 11 installed on a pedestal 10 that projects horizontally from the top of the dam body 2.
By operating this hoisting machine 11, the beam 4 and door body 5 are lifted one after another, and the lifted beam 4 and door body 5 are connected vertically, with hanging rods 6 and 7 placed between them and the adjacent door body. An opening O having a size corresponding to the length is formed.

As shown in FIGS. 5 and 6, the beam 4 is made of an elongated hollow body, and is telescopically connected to the uppermost door body 5a by a hanging rod 6 provided with engaging protrusions 14 at both ends. 5a-e consist of a long box body with an open back surface on the side opposite to the water guiding surface, and are connected telescopically by a hanging rod 7, which is shorter than the hanging rod 6 and similarly provided with engaging protrusions 15 at both ends. has been done.

16 is a through hole bored in the internal reinforcing frame 17 of the door body 5;
It is formed to have a larger diameter than the engaging protrusion 15 .

Reference numeral 18 denotes a water conduit pipe provided at the lower part of the dam body 2 so as to communicate with a water intake shaft 19 formed in the water intake part 1 .

Next, the operation of the above embodiment will be explained.

When the water level of the dam is low and water is not being taken in, the door body 5 stores the hanging rods 7 inside, and the upper and lower ends of the door body 5 are in contact with each other to hold back water, as shown in FIG.

When the water level rises, the surface water intake state shown in FIG. 7A will occur.

That is, since each door body 5 is left as it is and only the beam 4 is extended with the hanging rod 6 to its maximum length to form an opening O□ between the beam 4 and the uppermost door body 5a, the surface water is absorbed into the opening O□. The water enters the shaft 19 from the shaft, further flows down the shaft 19, and flows into the water conduit 18.
Water is introduced through the

Next, when it is desired to take water mainly from the intermediate water layer, the wire rope 9 is hoisted up by the hoisting machine 11 to lift the beam 4 and the uppermost door body 5a, and between the door body 5a and the second stage door body 5b. The opening 02 is formed by extending the hanging rod 7 to its maximum length,
In order to ensure water flow by taking water from this opening 02,
In addition, in order to take water from the intermediate water layer, which is deeper than this, the second and third door bodies 5b and 5c are further lifted together with the beam 4 and the top door body 5a, and an opening is similarly created between each door body. 03.0. The water is taken in from the lowest one of these openings by utilizing the difference in ice density to ensure water flow (C and D in the same figure).

In order to take water from the lowest layer, the wire rope 9 is further wound up to lift the beam 4 and the door body 5, and the suspension rods 6 and 7 of the beam 4 and the door body are all extended to their maximum lengths, and the bottom door body 5e and An opening Q is formed between the shaft and the bottom of the shaft, and water is taken from this opening 05 (E in the same figure).

In the above embodiment, the hanging rods 6 and 7 are shown as the connecting devices for the beam 4 and the door body 5, but the rods 6 and 7 are not limited to these, and other devices with the same effect, such as hanging ropes, may also be used, and the beam 4 is not essential. It goes without saying that it is not a formal term and may be omitted.

This idea is as described above, and when water is taken in, the door bodies arranged in multiple stages and in one row along the vertical direction are sequentially lifted from the top, facing the water guide surface of the water intake part, and an opening is opened between the door bodies. It is possible to selectively take water from the ice layer at any depth by using the density difference of water inside and outside the door body from the opening of the lowest water layer of this opening, and the structure is simple. It can be manufactured at low cost, is economical, and has excellent operability.
In addition, the upper and lower ends of the door bodies that are not used for water intake directly contact the upper and lower ends of other adjacent door bodies, thereby providing excellent effects such as being able to reliably maintain watertightness.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view of the main part of the conventional device, Fig. 2 is a transverse plan view of the same, Fig. 3 is a longitudinal sectional front view showing an embodiment of this invention, Fig. 4 is a transverse plan view of the same, and Fig. 5 is a longitudinal sectional front view of the main part of the conventional device. The figure is a partially cutaway front view of the lifting beam and the door body, FIG. 6 is a side view of the same, and FIG. 7 is an explanatory diagram of the operation. 1... Water intake part, 2... Dam body, 3.
...Door groove, 4...Lifting beam,
5... Door body, 6, 7... Hanging rod, 8...
... Pulley, 9 ... Wire rope, 10.
... Frame, 11... Hoisting machine, 14, 15...
...Engaging protrusion, 16...Through hole, 17...
...Reinforcement frame, 18... Water pipe.

Claims (1)

[Scope of utility model registration request] Facing the water guide surface of the water intake section, multiple stages of door bodies are arranged in a row along the vertical direction, and the door bodies are connected so that an opening of the desired size is formed between each door body. 1. A selective water intake system, characterized in that a hoisting device is provided above the door body to connect with the uppermost door body and to lift the door body.