JP2694358B2 - Underwater laying water conduit - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a water conduit device for underwater laying, which can prevent pollution of stored water due to floods and the like, and does not contain earth and sand, dust, plankton or the like. The present invention relates to a water conveyance device for underwater installation that can supply clean water.

[Conventional technology]

Reservoirs such as dams and lakes have been established to secure water resources and ensure a stable supply. Reservoirs have the function of flood control and water use such as storage of inflow water and appropriate supply of stored water. The water stored in this reservoir should be fresh water, but polluted water containing sediment may flow into the reservoir due to flooding, cliffs, etc., and may accumulate for a long period of time to pollute the stored water. Further, in recent years, a large amount of floating phytoplankton may grow near the dam embankment due to eutrophication by industrial wastewater and pesticides flowing into the reservoir and organic substances such as nitrogen and phosphorus in domestic wastewater. This plankton floats near the surface of the water near the dam dam where the water temperature is high and the water does not move within the reachable depth of sunlight, and although it is a few micrometer alone, it forms a group with growth. However, there are some that generate a significant odor. When the water containing the inclusions such as earth and sand and plankton is supplied in this way, not only the water purification function is hindered but also the user may feel uncomfortable.

Therefore, conventionally, inflow water was discharged at the time of flood in order to prevent the storage of polluted water due to floods and the like. In addition, in order to suppress and reduce the growth of plankton, the circulation device circulates the upper and lower layers of the reservoir to lower the water temperature,
Alternatively, measures such as filtering and sterilizing with a filtering device and chemicals were taken to remove the dirt, dust, and plankton contained in the water.

[Problems to be solved by the invention]

However, the continuous drainage of the inflowing water has the disadvantage that not only the pollution of the stored water cannot be prevented but also the stored water decreases. In addition, the conventional removal using a device, chemicals, etc. has a disadvantage in that it requires a high cost for replacing the equipment and the filtering material and the maintenance is complicated.

For example, in the one that circulates the upper and lower layers of water in a reservoir, unless a large number of circulation devices are installed in a vast reservoir, the reliable effect cannot be obtained, and the structure becomes complicated and large. In addition, the device operates for a short period of July to September in the high temperature period, and thus the remaining period is unnecessary, but a great deal of labor is required to maintain and manage many circulating devices. For this reason, there is a problem that installation and management are difficult due to the complexity and size of the structure, the installability is poor, the cost rises, and the maintenance management is complicated. In addition, the action of administering a large amount of chemicals to the reservoir and attempting to remove and kill these floating phytoplankton, if the water is used as drinking water, considering the conventional effects on the human body, There are inconveniences that are extremely dangerous.

Furthermore, it is possible to remove sediment, plankton, etc. by laying a membrane filter around the intake of the reservoir, but if the intake is large, it will cause clogging.
Since there is a need for regular cleaning / removal work of the filter medium, there has been an inconvenience that maintenance is complicated. In addition, the filter media must be laid with great strength in consideration of the increase in resistance due to this clogging, and the plankton should grow away from the intake to reduce the resistance due to clogging. If the filter material is laid in a difficult place, the area of the filter material must be large, which causes a problem of high installation cost.

[Object of the invention]

Therefore, an object of the present invention is to realize an underwater laying water guiding apparatus that can prevent the pollution of stored water due to floods and the like and can supply clean water that does not contain sediment or plankton.

[Means for solving the problem]

In order to achieve this object, the present invention allows the permeation of water into the water from the reservoir flowing water inlet part on the upstream side to the reservoir intake part on the downstream side, while permeating the inclusions contained in the water. It is characterized in that the water channel is formed by a film-like body made of a woven fabric having a required size of meshes capable of preventing the above-mentioned.

[Action]

According to the present invention, the required size that allows the permeation of water in the water from the reservoir water flow inlet part on the upstream side to the water reservoir intake part on the downstream side, while preventing the permeation of the inclusions contained in the water. Since the water channel is formed by the film-like body made of the woven fabric having the kerfs, the water flowing into the water flow inlet of the reservoir on the upstream side can be guided to the water inlet.
As a result, the polluted water that flows into the reservoir due to a flood or the like can be taken from the intake port and discharged immediately, and in normal times, cold and flowing water can be taken from the intake port and supplied. it can.

〔Example〕

Next, an embodiment of the present invention will be described in detail with reference to the drawings.

1 to 5 show an embodiment of a dam or the like according to the present invention. In Figures 1 and 2, 2 is a dam bank,
4 is the ground, 6 is a reservoir, 8 is an intake, 10 is an intake channel, and 12 is an outlet. At the flowing water inlet 14 of the reservoir 6 formed by the dam body 2 and the ground 4 on both sides, the river 16
Has contacted. The water stored in the reservoir 6 flows into the intake channel 10 from the intake port 8 and is discharged from the discharge port 12.
The intake 8 is provided on the dam body 2 like the concrete dam shown in FIG. 1 and is not provided on the dam body 2 like the rock fill dam shown in FIG. In some cases, it may be provided in a part or in a water intake tower or the like installed separately.

The underwater laying water guide device 18 according to the present invention allows water to permeate into the water from the flowing water inlet 14 part of the upstream reservoir 6 to the intake 8 part of the downstream reservoir 6 while containing it in the water. Channels by means of a membrane body 20 made of a woven fabric having a mesh of a required size capable of preventing the permeation of contained substances.
22 are formed.

That is, as shown in FIGS. 3 to 5, a water channel 22 having a substantially U-shaped cross section is formed by the film body 20 by securing the shape with a jig 24, and the floating body 26 is attached to the upper end of the film body 20 and the lower end is formed. Attach the weight 28 to the water channel 22, and connect the inlet 30 of the waterway 22 to the rope 32 and the anchor 34.
And the outlet 36 of the water channel 22 are connected to the floating substance removing film 40 of the floating substance removing device 38 which surrounds the water inlet 8 by opening the inlet 36 at the inlet 8 position. Set up.

The floating substance removing device 38 is a floating substance removing film-like body 40 made of a woven fabric having a mesh of a required size that allows the permeation of water while blocking the permeation of inclusions, By surrounding the water intake port 8 and extending it in a predetermined shape at a predetermined depth in the flow direction of the water, inclusions such as plankton floating in a large amount near the water surface can be dispersed in the water flow direction. The inclusions that can be removed by the upstream film surface and that have been removed and accumulated on the film surface and have died can be easily separated and dropped down the downstream side in the flow direction of water to avoid clogging. ,
The filtration function can be maintained, and the contents can be appropriately removed, and maintenance can be facilitated. Also, the sign
42 is a driftwood removing device, which has a large-sized driftwood removing film 44
Is provided on the upstream side of the suspended matter removing device 38. The floating substance removing film 40 of the floating substance removing device 38 and the driftwood removing film 44 of the driftwood removing device 42 are the floating body 46 and the water, respectively.
48 is attached and is extended by the rope 50 and the anchor 52.

In this way, by forming the water passage 22 from the portion of the flowing water inlet 14 to the water intake 8 by the film body 20, it is possible to guide the weight flowing from the river 16 to the flowing water inlet 14 on the upstream side to the water intake 8. You can

As a result, for example, polluted water flowing into the reservoir 6 due to a flood or the like can be taken from the water inlet 8 and discharged immediately, and in normal times, cold and flowing water can be taken from the water inlet 8. Can be supplied.

Therefore, due to the prompt discharge of polluted water that flows in,
It is possible to prevent pollution of stored water due to floods and the like. In addition, it is possible to supply clean water that does not contain sediment, plankton, etc. by the intake of cold and flowing water that conflicts with the growth condition of floating phytoplankton that is warm and stays without flowing. . Furthermore, the waterway
By utilizing the fact that the pressure inside 22 is negative with respect to the pressure outside water channel 22, the water outside channel 22 containing plankton and the like near intake 8 is filtered and called into water channel 22 to clean it. It can be supplied as water. When the pressure in the water channel 22 is positive with respect to the pressure outside the water channel 22, the water in the water channel 22 is pushed out of the water channel 22, so that a large resistance is added to the film body 20. This can be avoided, which is advantageous in terms of strength.

 FIG. 6 shows another embodiment of the present invention.

In this embodiment, the water channel of the water conveyance device 18 for underwater installation
22 is extended across the floating substance removing film 40 of the floating substance removing device 38, and the outlet 36 of the water channel 22 is opened at the water inlet 8 site.

According to this embodiment, the same effect as that of the above-described embodiment can be obtained, and the outlet 36 of the water channel 22 is opened near the water inlet 8, so that the water at the running water inlet 14 is directly supplied to the water inlet 8. Therefore, the polluted water can be discharged more promptly to prevent the polluted water from being polluted more reliably, and the clean water containing no sediment or plankton can be supplied more reliably.

 FIG. 7 shows still another embodiment.

In this embodiment, the floating material removing film 40 of the floating material removing device 38 is laid away from the water inlet 8 in the vicinity of the flowing water inlet 14 and the film surface 54 of the floating material removing film 40 is placed. The entrance 30 of the water channel 22 of the underwater laying and guiding device 18 is connected and opened, and the exit 36 of the water channel 22 is opened at the eight water openings.

According to this embodiment, the same effect as that of the above-described embodiment can be obtained, and further, the inlet 30 of the water channel 22 is connected to the membrane surface 54 of the suspended solids removal membrane 40 and opened, and the outlet 36 of the water channel 22 is opened. Due to the opening of 8 intakes
Even though the total length of 22 is short, the surface film 54 of the suspended solid removing film 40 can remove the water content flowing in from the inlet 30, and can guide clean water to the inlet 8.

The shape of the water channel 22 is not limited to this embodiment, and the U-shaped or V-shaped cross section is used, or the water channel 22 is not surrounded by the film-shaped body 20 but is film-shaped on both sides. The bodies 20 may be arranged in parallel.

The shape of the inlet 30 of the water channel 20 is also expanded and formed toward the upstream side as shown in FIG.
By providing the inlet membrane 56 of the
The amount of clean water introduced to the water intake port 8 can be increased while the content can be removed.

〔The invention's effect〕

Thus, according to the present invention, water is allowed to permeate into the water from the reservoir water flow inlet part on the upstream side to the reservoir intake part on the downstream side, while the permeation of the inclusions contained in the water is blocked. By forming the water channel by the film-like body made of the woven fabric having the required size of mesh, it is possible to guide the water flowing into the reservoir water flow inlet on the upstream side to the water inlet. As a result, the polluted water that flows into the reservoir due to a flood or the like can be taken from the intake port and discharged immediately, and in normal times, cold and flowing water can be taken from the intake port and supplied. it can.

Therefore, due to the prompt discharge of polluted water that flows in,
It is possible to prevent pollution of stored water due to floods. In addition, it is possible to supply clean water that does not contain sediment, plankton, etc. by the intake of cold and flowing water, which contradicts the growth condition of floating phytoplankton, which is warm and stays without flowing. it can. Furthermore, by utilizing the fact that the pressure inside the waterway is negative with respect to the pressure outside the waterway, the water outside the waterway that contains plankton, etc. near the intake is filtered and called into the waterway and supplied as clean water. Is what you can do. When the pressure in the water channel becomes positive with respect to the pressure outside the water channel, the water in the water channel is pushed out of the water channel, so that it is possible to avoid adding a large resistance to the film body. Therefore, it is advantageous in terms of strength.

[Brief description of the drawings]

1 to 5 show an embodiment of the present invention, FIG. 1 is a plan view when it is applied to a concrete dam reservoir, and FIG. 2 is a plan view when it is applied to a rockfill dam reservoir. FIGS. 3 and 4 are perspective views of an inlet portion, an intermediate portion and an outlet portion of a water channel, respectively. FIG. 6 is a plan view showing another embodiment of the present invention, FIG. 7 is a plan view showing still another embodiment, and FIG. 8 is a perspective view showing another embodiment of the inlet of the water channel. In the figure, 2 is dam dam, 4 is ground, 6 is reservoir, 8
Is an intake port, 14 is a running water inlet, 16 is a river, 18 is a water guiding device for underwater installation, 20 is a membrane, 22 is a water channel, 24 is a jig, 26 is a floating body, 28 is a weight, 30 is an inlet, 32 Is a cord, 34 is an anchor, 36 is an outlet, 38 is a suspended matter removing device, 42 is a driftwood removing device, 54 is a membrane surface, and 56 is an inlet membrane.

Claims (1)

(57) [Claims] 1. A required size capable of allowing water to permeate into water from an inlet part of a reservoir on the upstream side to a part of the intake part of a reservoir on the downstream side, while preventing permeation of inclusions contained in the water. A water conduit for underwater laying, characterized in that a water channel is formed by a film-like body made of a woven fabric having an eye.