JP2008031878A - Device for preventing inflow of drift deposition and for collecting water - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that countermeasures against drift depositions obstructing a device are not particularly taken into account when using a small hydraulic power generating device, and a problem of an efficient water intake countermeasure considered as a certain degree of an essential point. <P>SOLUTION: This device has a form that a streaky screen part and a funneled water collecting part are connected to each other. In the screen part, a screen has a streaky shape that plate-like long members are arranged in parallel at approximately equal intervals in a range of approximately 20 to 50 mm, and also the screen is arranged at an inclination angle in a range of approximately 30 to 50 degrees to a stream when the screen is streaked in a direction orthogonal to a water surface. In the funneled water collecting part, a funneled part having an outline of an obelisk shape, a tubular part, and a flange part are provided, and are connected to each other. The device for preventing inflow of drift depositions and also collecting water is provided further with a connecting means to an intake pipe and a fixing means to a water bottom in rivers or the like, and is used by being connected to the intake of the intake pipe of the hydraulic power generating device. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a drifting material inflow prevention and water collecting device used by being connected to a water intake pipe of a small hydroelectric generator, and more specifically, it can prevent the inflow of drifting material and exhibit a good water collecting function when water is taken in. The present invention relates to a drifting material inflow prevention and water collecting device.

In recent years, utilization technologies such as hydropower, wind power, and solar energy, which are environmentally friendly natural energy, have attracted attention due to the problem of depletion of reserve resource energy and the problem of deterioration of the global environment due to discharged carbon dioxide and the like. Regarding hydropower use, it has been used for a long time by hydroelectric power generation using the dam method. However, the dam method requires huge construction costs and is also a problem of sediment caused by dams and sediments, and a problem of the destruction of the natural environment accompanying dam construction. Therefore, new establishment in the future is not easy. For this reason, small hydroelectric generators are attracting attention, but conventional small hydroelectric generators are mainly based on the idea of power generation propeller turbines using Francs or Francis turbines using conventional dams. Most of them need to be accompanied by dams and water transfer facilities, etc., which not only increases the equipment cost, but also causes drifting materials and sediment accumulation problems on the dams or the like. There is a risk of damage to the device. For example, as proposed in Patent Literature 1, Patent Literature 2, and Patent Literature 3, most of the devices are premised on the installation of dams, water conveyance facilities, etc. In many cases, there is a problem that countermeasures against drifting objects that hinder small hydroelectric generators that use flowing water such as rivers are not taken into account. Moreover, when using a small hydroelectric generator, efficient water intake is considered to be an important point.
JP-A-5-26147 JP 2002-295358 A JP 2003-222067 A

  The most important problem to be solved by the present invention is that, in view of the problems of the above-mentioned conventional small hydroelectric generators, there are not enough countermeasures against drifting objects that obstruct the apparatus when using flowing water such as rivers. The problem is that it has not been taken into account, and the problem of efficient water intake measures that are considered to be important when using small hydroelectric generators.

  In order to solve the above-mentioned problem, the drifting substance inflow preventing and collecting apparatus according to the present invention is a drifting substance inflow preventing and collecting apparatus mainly used by being connected to the intake port of the intake pipe of the small hydroelectric generator. The streak-shaped screen part and the funnel-shaped water collecting part are connected to each other, and the streak-like screen part has a streak shape in which the screen is formed by arranging plate-like long members in parallel at intervals of about 20 to 50 mm. When the screen has a screen shape and is inclined with respect to the water flow, and the screen has a streak shape perpendicular to the water surface, it forms an inclination angle of about 30 to 50 degrees with respect to the water flow. When the streak form of the screen is a streak in a direction parallel to the water surface, the screen is arranged to form an inclination angle in the range of about 30 to 60 degrees with respect to the water flow. The funnel-shaped water collection part has a rectangular inflow opening and an outer shape. It has a funnel-like part, a tubular part, and a flange part that form a shape similar to the shape of a fish, and has a connected form, and further has means for connecting to a water intake pipe and means for fixing to the bottom of a river or the like. Features.

  According to the present invention, in order to utilize small hydroelectric power generation that directly uses running water without using a dam system, the problem of conventional small hydroelectric power generation equipment, which can solve the problem of inflow of drifting objects, The problem of efficient water intake, which is considered to be an important point when using small hydroelectric generators, can be solved. It will be possible to contribute as an aid to improve the global environmental problems caused by carbon.

  As the best mode for carrying out the present invention, the members constituting the device should have strength, water resistance, weather resistance, impact resistance, etc. that can achieve the purpose of the device and can withstand long-term use. For example, stainless steel, rust-proofing steel, aluminum alloy, engineering plastics, and the like are suitable, and each part and the like are considered to be described below.

  Regarding the streaky screen part, the selection of the orthogonal direction or the parallel direction with respect to the water surface of the streak form of the screen may be appropriately selected in consideration of the change in the water level and the installation conditions such as the space on both sides of the device, For example, if the frequency of submergence is high and the space on both sides is limited, the streak shape in the orthogonal direction is preferable, and if the frequency of submergence is low and the water level changes and there is room on both sides, the parallel direction A streak form is preferred. In addition, when the screen has a streak shape in a direction perpendicular to the water surface, the screen has an inclination angle of about 30 to 50 degrees with respect to the water flow. In the case of forming a streak in the parallel direction, it is preferably arranged so as to form an inclination angle in the range of about 30 to 60 degrees with respect to the water flow, and an equal angle is formed on both sides from the center of the screen.

The thickness of the plate-like long member is related to the material, but is preferably a dimension with a range of about 2 to 10 mm as a target, and the width may be appropriately set in consideration of the scale of the apparatus. Moreover, the arrangement | sequence space | interval of a plate-shaped elongate member is set in the range of about 20-50 mm, and the arrangement | sequence of a substantially equal space | interval is preferable. And it is preferable to arrange | position the reinforcement member of the form which does not exert a bad influence on the intake of the flowing water for hold | maintaining a screen form in an edge part and an intermediate part. In addition, it is preferable that a thin plate-like member is provided at least on the side and bottom so that the flowing water can be guided. On the outer periphery, a form-retaining reinforcement and a skeleton material for fixing to the water bottom are provided. It is preferable to do this.

  As for the funnel-shaped water collecting part, the funnel-like part has a rectangular inflow opening on the streaky screen part side and the outer shape is similar to an obelisk shape, and the inclination angle of the inclined part is about 10 to 45 degrees. A shape like a deformed trapezoid whose cross-sectional shape is eccentric to the water bottom side is preferable. In addition, it is preferable that the joint portion with the tubular portion has a form that allows flowing water to smoothly flow into the tubular portion, and the magnification between the rectangular shape area and the tubular portion area is set to about 2 to 10 times. Preferably it is done. And the tubular part has a form that can be consolidated to the intake pipe of the hydroelectric generator via the flange part, and it is preferable to arrange the shape retention reinforcement and the skeleton material to be fixed to the water bottom part on the outer peripheral part.

  As a method of installing the device on the bottom of a river or the like, a method of providing a strong device installation base using a concrete plate, a steel pile, or a concrete pile and fixing it with an anchor bolt or the like is preferable. If the installation location is near the dam or the irrigation channel, and the water bottom is already a concrete structure, the structure may be used.

  The hydroelectric power generator associated with the present invention device is not limited as long as it is a hydroelectric power generator that generates power using a water intake pipe.

  As an explanation of an embodiment of the device of the present invention, FIG. 1 is an explanatory side sectional view of one embodiment of the device of the present invention. FIG. 2 is an additional explanatory diagram of the example of FIG. FIG. 3 is an explanatory diagram when the streaks of the screen are in the horizontal direction. Hereinafter, the drifting material inflow preventing and collecting apparatus according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the device of the present invention has a streak shape having a streak screen in which plate-like long members 11 are arranged in parallel at substantially equal intervals so that a streak shape can be maintained using a reinforcing member 14. A form in which the screen part 10 is connected to a funnel-shaped water collecting part 20 having a rectangular shape with an inflow opening and a shape similar to an obelisk shape, a tubular part 22 and a flange part 23 connected to each other. It has a means for connecting to the water bottom 3 of the river etc. via the connecting means to the intake pipe 1 and the equipment installation foundation 2 etc., and can solve the obstacle problem due to the inflow of drifting objects, and small hydraulic power It is now possible to solve the problem of efficient water intake, which is considered to be an important point when using power generators.

  As shown in FIGS. 2 to 3, the streak-like screen portion 10 can hold the streak-like form by arranging the plate-like long members 11 in parallel at substantially equal intervals in the range of about 20 to 50 mm and using the reinforcing member 14. It is composed of the streak-shaped screen, the skeleton member 12 for maintaining the shape of the part, and the thin plate-like member 13 surrounding the bottom surface and the side surface or the top surface for smoothly flowing water. The screen has a streak shape in a direction orthogonal to the water surface and a streak shape in a parallel direction. When forming a streak in the orthogonal direction, as shown in FIG. 2 (C), it is arranged so as to have an inclination angle in the range of about 30 to 50 degrees with respect to the water flow, and when forming a streak in the parallel direction. As shown in FIG. 3 (D), the screen is disposed in the form of an angle in the range of about 30 to 60 degrees with respect to the water flow from the center of the screen to both sides.

  As shown in FIGS. 2 to 3, the funnel-shaped water collecting portion 20 has a funnel-shaped portion 21, a tubular portion 22, and a flange portion 23. The funnel-shaped water collecting portion 20 is connected to the outer peripheral portion. A skeleton member 24 is provided for installation. As shown in FIGS. 2, 3 (C) and (D), the funnel-shaped portion 21 has a form similar to the obelisk shape, and the inclination angle of the inclined portion is about 10 to 45 degrees. And a shape like a deformed trapezoid eccentric to the bottom of the water is preferable. As shown in FIG. 1, the tubular portion 22 has the same diameter as the intake pipe 1 to be connected, and is connected by a bolt / nut through a flange portion 23, and a U-bolt / nut etc. 30 is attached to the skeleton member 24. Fixed.

  As shown in FIG. 1, the installation method of the apparatus on the bottom of a river or the like is provided with a solid apparatus installation foundation 2 using a concrete plate, a steel pile or a concrete pile on the bottom 3 of the river or the like. It is fixed by etc.

  In this way, the streaks screen prevents the inflow of flots that obstruct the device, and the streak screens are installed at an inclination angle that prevents strays from accumulating, so that there are no special measures. Can easily flow down to the downstream side, so that the problem of drifting material can be solved, and furthermore, the water intake efficiency can be increased by the funnel-shaped portion, and the object of the present invention can be achieved.

  It can also be used by attaching to the suction part of a submersible pump or dredging pump.

Side surface explanatory drawing of one Example of this invention apparatus Additional explanatory diagram of the example of FIG. 1 (A) Front view (B) Rear view (C) Side view (D) Plan view (A) Front view (B) Rear view (C) Side view (D) Plan view

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Intake pipe 2; Equipment installation base 3; Water bottom part of rivers 10; Streaky screen part 11; Long plate member 12; Skeletal member 13; Thin plate member 14; Reinforcement member 20; ; Funnel-shaped part 22; Tubular part 23; Flange part 24; Skeletal member 30; U-bolt / nut etc. 40; Fixing bolt hole

Claims (1)

  A drifting substance inflow preventing and collecting apparatus mainly used by connecting to the intake port of the intake pipe of a small hydroelectric power generator, wherein the streaked screen portion and the funnel-shaped collecting portion are connected, and The streak-shaped screen portion is a streak-like screen in which the plate-like long members are arranged in parallel at intervals of about 20 to 50 mm, and is arranged in an inclined state with respect to the water flow. Is arranged in a direction perpendicular to the water surface so as to form an inclination angle in a range of about 30 to 50 degrees with respect to the water flow, and the screen streaks form a streak in a direction parallel to the water surface. In this case, the water flow is formed so as to form an inclination angle in the range of about 30 to 60 degrees, and the funnel-shaped water collecting portion has a rectangular inflow opening and an external shape similar to an obelisk shape. It has a funnel-shaped part, a tubular part and a flange part. And Na the sintered form, further, flotsam inflow prevention and catchment device, characterized in that it has possession of the fixing means to the water bottom portion of such coupling means and rivers to intake pipe.

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