JP3629452B2 - Water intake equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water intake device that takes in water from a water source such as a river.
[0002]
[Prior art]
Conventionally, there has been a water intake device that is used for agricultural water, industrial water, domestic water, flowing snow, snow removal, etc., by arranging a water intake at a water source such as a river and taking water into the water channel from the water intake. Widely used, making effective use of natural water sources.
As a method for removing the dust in the water, a method is generally adopted in which the water flowing in the irrigation channel is stored in a settling tank for a certain period and the dust is suspended or settled.
[0003]
[Problems to be solved by the invention]
However, the removal method as described above, that is, the form using a sedimentation tank, requires the removal of dust in the sedimentation tank, and there is a problem that the cost of equipment maintenance costs increases.
Therefore, the inventor has paid attention to the fact that the form of dust removal using a sedimentation tank is the cause of the above problem, and has considered whether dust removal can be completely performed at the water intake. In addition to reducing the facility maintenance costs mentioned above, we wanted to contribute to society by realizing a low-cost device in the installation of facilities, and as a result of repeated trials and improvements, we created the present invention. is there.
[0004]
[Means for Solving the Problems]
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
That is, as described in claim 1, a frame body installed on the floor of a river and a dust removal screen provided on the upper portion of the frame body, and water taken through the dust screen is provided to the frame body. A water intake device configured to supply to a water storage tank through a path, wherein the dust removing screen has a mountain range in a front view facing the upstream side from the downstream side of the river flow, and the mountain range shape of the dust removing screen is formed valleys is that the intake device configured as deep and so that the downstream side from the upstream side of the river flow.
[0005]
In addition, as described in claim 2, a plurality of substantially triangular plates in a front view facing the upstream side from the downstream side of the river flow are connected to the downstream end of the river flow in the frame body. A dam plate comprising a mountain range and a plurality of substantially inverted triangular plates connected to a rod body in front view facing the upstream side from the downstream side of the river flow is provided, The plate body is arranged so as to be positioned between the plate bodies of the dam plate, and the mountain range shape of the downstream end face of the dust removing screen is the same as the mountain range shape formed by connecting the plate bodies of the dam plate. It is that .
[0006]
In addition, as described in claim 3, the water intake device digs down the river bed G1, forms the river bed G2, is installed on the river bed G2, and the upper portion of the water intake device is at a position lower than the river bed G1. It is supposed to exist .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
1 is an exploded perspective view showing the structure of the water intake device of the present invention, FIG. 2 is a plan view of the water intake device installed in the river, FIG. 3 is a bottom view of the water intake device of the present invention, and FIG. 4 is a water intake device installed in the river FIG. 5 is a perspective view showing the shape of a dust removing screen.
6A is a partial cross-sectional side view of the water intake device at point a in FIG. (B) is side surface partial sectional drawing of the water intake apparatus in the point b similarly. (C) is a side partial sectional view of the water intake device at the same point c.
In the description of the position of the water intake device, the upstream side of the water flow of the river is assumed to be the rear side, and the downstream side is assumed to be the front side. For example, the shape in front view is seen when facing the upstream side from the downstream side It shall mean the shape.
[0008]
FIG. 1 is an exploded perspective view showing a configuration of a water intake device 1 of the present invention.
The water intake device 1 includes a frame (hereinafter referred to as “installation frame 2”) and a dust removal screen 3.
First, the installation frame 2 will be described.
The installation frame 2 is viewed from the front (from the downstream of the river flow in the installed state) by the rectangular bottom plate 4 in plan view laid on the riverbed and the side plates 5 and 6 erected from the left and right sides of the bottom plate 4. , The same applies hereinafter) to form a substantially “U” -shaped frame, and a dam plate 7 is bridged between the downstream ends of the side plates 5 and 6.
[0009]
A rectangular opening 4a is provided at the center of the bottom plate 4, and a connection cylinder 8 is provided below the opening 4a, and water is poured into the connection cylinder 8 from the opening 4a.
Further, the weir plate 7 has a mountain shape (a shape in which triangles are continuously arranged in the width direction) by connecting a plurality of plate bodies 7a and 7a having a "mountain" shape (right and left end portions are right triangle shapes). It is a plate body, the left and right ends are in contact with the inner surface of the side plates 5 and 6, the lower part is in contact with the bottom plate 4, and the flow of water is primarily blocked and formed between a plurality of “mountain” shapes. The water flowing from the upstream is discharged from the valley-shaped part.
[0010]
Then, a dam door 9 is constructed in which plate bodies 9a, 9a,. .. Are arranged so as to be positioned between the plate bodies 7a and 7a. The dam door 9 is attached to the installation frame 2 by pivotally supporting the left and right ends of the rod body 9b to the side plates 5 and 6. Further, a lock arm 10 fixed by a bolt or the like is projected on one side of the left and right ends of the rod body 9b, and the lock arm 10 is brought into contact with the side surface of the plate body 5 (or the plate body 6). While the lock arm 10 is fixed, the angle of the rod 9b with respect to the side plates 5 and 6 is determined. That is, the opening / closing angle of the dam door 9 with respect to the dam plate 7 can be adjusted.
As described above, the weir door 9 and the weir plate 7 form a “weir” that restricts the flow of water.
[0011]
Further, as shown in FIG. 3, a water distribution square tube 12 is connected to the lower portion of the connection tube 8, and water flowing into the connection tube 8 from the opening 4a is passed through the water distribution square tube 12 to the water storage tank 18 (FIG. 3). 6 (c)) and the like. That is, the connecting pipe 8 and the water distribution square tube 12 constitute a water distribution path.
[0012]
Next, the dust removing screen 3 will be described.
As shown in FIG. 5, the dust removing screen 3 includes an upstream end screen 20 having a triangular shape in plan view, and two substantially trapezoidal shapes starting from the oblique side of the upstream end screen 20 and extending toward the downstream side. The slant screens 21 and 21 are configured so that their bases coincide with each other and rise upward so that the downstream end face of these “three screens” is formed in a substantially “V” shape. is doing.
A plurality of such “three screens” are connected in the left-right direction (the direction orthogonal to the flow of water), and the downstream end face is connected to a “V” shape in front view. ("V" character connected in series) is formed.
[0013]
Further, the mountain range is the same as the shape formed by connecting the plate bodies 7a, 7a,... Of the dam plate 7 so that water does not enter from the downstream end face of the dust removing screen 3, and It does not flow into the opening 4a.
In addition, the number of mountains and the number of valleys in the mountain range are not limited to the number of embodiments shown in FIG. 1, and the design is appropriately changed according to the installation conditions such as the river width.
[0014]
Further, regarding the production of the dust removal screen 3, the “three screens” described above may be formed by welding different ones, or a single screen may be processed by sheet metal processing to form a mountain range. It is good also as a structure to form, and it is not limited to either.
Further, the size of the mesh of the dust removing screen 3 is, for example, a 1 mm × 18 mm long hole, which is suitable for removing fine suspended matters such as sand and wooden pieces in water.
[0015]
As shown in FIG. 1, in the dust removing screen 3, the upstream end and the lower end on the downstream side are brought into contact with the bottom plate 4, and between the side plates 5 and 6 from above the installation frame 2. By inserting, the water intake device 1 (FIG. 2) in which both are integrated is formed.
In this way, the dust removal screen 3 is surrounded by the side plates 5 and 6 and the front surface is surrounded by the weir plate 7, so that only the water that has passed through the dust removal screen 3 can be poured into the opening 4a.
[0016]
As described above, the frame (installation frame 2) installed on the floor (river bed) of the water source and the dust removal screen 3 provided on the upper part of the frame, the water that has passed through the dust removal screen 3, The water intake device 1 that supplies water to the water storage tank through the water intake path (connection cylinder 8 / water distribution square tube 12) provided in the installation frame is formed.
In the frame body (installation frame body 2), a dam composed of a dam plate 7 and a dam door 9 is formed at the downstream end of the dust removing screen 3.
[0017]
Next, the Example which installs and uses the water intake apparatus 1 is demonstrated.
2 and 4 show an example in which the water intake device 1 is installed in a river 30 having a river width L2 (FIG. 2).
In this embodiment, the riverbed G1 is dug down by the width of the bottom plate 4 (FIG. 1) to form the riverbed G2, and the bottom surface of the bottom plate 4 is laid on the riverbed G2. Is not present at a position higher than the river bed G1. And the riverbed G3 downstream from the water intake device 1 constitutes the same riverbed as G1 further downstream.
[0018]
FIG. 6 shows the apparatus / bed section at points a, b and c in FIG.
The valley formed by the dust removing screen 3 is deepened in the order of the point a to the point c, and fine floating substances such as sand and wooden pieces are removed at the point c when passing through the dust removing screen 3. Water flows into the connecting cylinder 8 and is poured into the water storage tank 18 (FIG. 6C) through the water distribution square pipe 12.
[0019]
The water stored in the water storage tank 18 (FIG. 6C) is used for various types of water through a supply pipe 19 by a pumping pump (not shown).
[0020]
With the above configuration, in the water intake device 1 serving as a water intake, by removing impurities and suspended solids, a sedimentation tank or the like is not necessary, and installation costs can be reduced . it's a facility that does not take the maintenance costs.
[0021]
Next, specific actions / effects achieved by the shape of the dust removing screen 3 will be described.
The first is the effect of flowing suspended matter downstream by the action of adjusting the flow of water.
That is, the dust removing screen 3 forms a so-called “樋” shape by the three screens of the oblique screens 21 and 21 and the upstream end screen 20, and exhibits the action of flowing water in one direction (from upstream to downstream). .
By this action, the suspended matter is surely flowed downstream, and the effect that the sedimentation of the suspended matter on the upstream side of the dust removing screen 3 is prevented is obtained.
[0022]
The second effect is that the flow of water is disturbed by the “V” shape and the effect of preventing the attachment of suspended matter to the screen due to the action of narrowing the width of deposition.
That is, since the dust removing screen 3 has a substantially “V” cross section, the bottom of the “V” shape exhibits the effect of disturbing the flow of water. Further, the closer to the bottom, the narrower the width between the oblique screens 21, 21, so that the deposited width of the suspended matter (in the width direction of the valley bottom) is also reduced.
Due to these actions, the suspended matter is difficult to settle, and even if it settles, the depositing width is narrow, so that it is possible to obtain the effect that the deposit is likely to flow (easily roll up).
[0023]
Next, a description will be given of specific actions and effects achieved by the weir constituted by the weir plate 7 and the weir door 9.
As shown in FIG. 4, the water at the point A before passing through the weir increases in flow rate by passing through the weir and flows out downstream. That is, the flow velocity is increased and the downstream water pressure is lowered, that is, the water pressure difference is produced before and after the weir.
By this action, the water on the higher pressure side of the point A before passing through the weir is promoted to flow to the point B after passing through the weir due to the water pressure difference (pressure difference), and floats along with the flow. The object is encouraged to pass through the weir and the effect of not staying in the water intake device 1 is obtained. That is, the effect that floating substances (fallen leaves, earth and sand, etc.) do not accumulate on the dust removal screen 3 can be obtained.
[0024]
The opening / closing angle of the dam door 9 can be adjusted by the lock arm 10 described above, and by appropriately adjusting the opening / closing angle in accordance with the amount of water in the river, the above-mentioned actions and effects can be reliably achieved. It is like that.
[0025]
More dust screen 3 and, by the action and effect of the weir consisting weir plate 7 and Sekitobira 9, the intake device 1 as the intake, Ru prevents adhesion and sedimentation of suspended matter to the dust screen 3.
[0026]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
That is, as in claim 1, a frame body that is installed on the floor of a river and a dust removal screen that is provided on the upper portion of the frame body, and water that has passed through the dust removal screen passes through a water intake path provided in the frame body. A water intake device configured to supply to a water storage tank, wherein the dust removal screen has a mountain range in a front view facing the upstream side from a downstream side of a river flow, and a valley formed by the mountain range shape of the dust removal screen. Is a water intake device configured to be deeper from the upstream side to the downstream side of the river flow, so that impurities and suspended solids can be removed by using the water intake device as a water inlet. etc. is no longer necessary, it is possible to reduce the installation costs, cleaning and of the settling tank, can be a facility that does not take the maintenance costs, such as maintenance.
In addition, since the dust removing screen has a substantially mountain range when viewed from the front, it is possible to prevent adhesion and sedimentation of suspended matter on the dust removing screen .
Since the valley formed by the mountain range of the dust removal screen becomes deeper from the upstream side to the downstream side, it is possible to prevent adhesion and sedimentation of suspended matter on the dust removal screen .
[0027]
In addition, as described in claim 2, a plurality of substantially triangular plates in a front view facing the upstream side from the downstream side of the river flow are connected to the downstream end of the river flow in the frame body. A dam plate comprising a mountain range and a plurality of substantially inverted triangular plates connected to a rod body in front view facing the upstream side from the downstream side of the river flow is provided, The plate body is arranged so as to be positioned between the plate bodies of the dam plate, and the mountain range shape of the downstream end face of the dust removing screen is the same as the mountain range shape formed by connecting the plate bodies of the dam plate. since a was, suspended matter is promoted to pass through the weir, suspended matter can be prevented from being deposited on the dust screen.
[0028]
In addition, as described in claim 3, the water intake device digs down the river bed G1, forms the river bed G2, is installed on the river bed G2, and the upper portion of the water intake device is at a position lower than the river bed G1. Since it exists, the upper part of a water intake apparatus can be made not to exist in a position higher than the riverbed G1 .
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a configuration of a water intake device of the present invention.
FIG. 2 is a plan view of a water intake device installed in a river.
FIG. 3 is a bottom view of the water intake device of the present invention.
FIG. 4 is a partial cross-sectional side view of a water intake device installed in a river.
FIG. 5 is a perspective view showing a shape of a dust removing screen.
6 (a) is a partial cross-sectional side view of the water intake device at point a in FIG. 4; (B) is side surface partial sectional drawing of the water intake apparatus in the point b similarly. (C) is a side partial sectional view of the water intake device at the same point c.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Water intake device 2 Installation frame 3 Dust removal screen 8 Connection cylinder 12 Water distribution square tube

Claims (3)

A frame body installed on the floor of the river and a dust removal screen provided on the upper part of the frame body, and water passing through the dust screen is supplied to the water storage tank through a water intake path provided in the frame body. A water intake device,
The dust removing screen has a mountain range in front view facing the upstream side from the downstream side of the river flow,
A water intake device configured such that a valley formed by a mountain shape of the dust removing screen becomes deeper from an upstream side to a downstream side of a river flow . At the downstream end of the river flow in the frame,
A weir plate that forms a mountain range by connecting a plurality of substantially triangular plates in a front view facing the upstream side from the downstream side of the flow of the river;
A dam door configured by connecting a plurality of substantially inverted triangular plate bodies to a rod body in a front view facing the upstream side from the downstream side of the river flow is provided,
The plate of the dam door is disposed so as to be positioned between the plate of the dam plate,
2. The water intake device according to claim 1, wherein a mountain range shape of a downstream end face of the dust removing screen is the same as a mountain range shape formed by connecting plate bodies of the weir plates . The water intake device digs down the river bed G1, configures the river bed G2, is installed on the river bed G2, and the upper portion of the water intake device exists at a position lower than the river bed G1. The water intake device according to claim 1 or 2 .

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