JP2010043408A - Floating matter inflow prevention device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the dust removing performance of a dust remover installed in an intake channel from being lowered by stopping the inflow of floating matters such as industrial waste and drift wood flowing from a main river into an intake port. <P>SOLUTION: In this floating matter inflow prevention device installed at the intake port 2a for taking water from the main river 1, guide rails 3, 3 are installed on both sides of the intake port 2a, both ends of a float 4 are liftably engaged with the guide rails 3, 3, eleven sheets of curtain pieces 6 are attached in series to the lower surface of the float 4 in a clinker-stacking manner, side balance rollers 7, 7, 7, 7 are attached to both ends of the float 4 engaged with the guider rollers 3, 3, and balance weight attachment parts each formed of a screw rod 9 are provided to both sides of the float 4. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an inflow prevention device for floating substances flowing from a main river into a water intake.

  The intake channel that draws water from rivers, irrigation channels, etc. is generally provided with a bar screen for catching dust, and a mechanical dust removal device that removes the dust collected on this screen with a scooping rake is provided. In recent years, floating waste flowing in rivers has increased industrial waste, and the floating matter has been entangled and deposited on the screen, obstructing the water flow, and exceeding the dust removal capacity of the dust remover, making it impossible to remove dust. Increased.

Therefore, the dust removal device has to be increased in size, resulting in an increase in construction costs.
JP 2002-317428 A

  Therefore, the present invention prevents the inflow of industrial waste and drifting materials such as driftwood that are about to flow into the water intake from the main river, so that the dust removal capability of the dust removal device attached to the intake channel does not deteriorate. It is intended to do.

  The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 is a floating substance inflow prevention device installed at a water intake port taking water from the main river, on both sides of the water intake port. A floating substance inflow prevention device characterized in that a guide rail is provided, both ends of the float are engaged with the guide rail so as to be movable up and down, and an appropriate number of curtain pieces are attached to the lower surface of the float in a clinker stack. is there.

  A second aspect of the present invention is the floating substance inflow prevention device according to the first aspect of the present invention, wherein side float rollers are provided at both ends of the float engaged with the guide rail.

  A third aspect of the present invention is the floating substance inflow prevention device according to the first or second aspect of the present invention, wherein a balance weight attaching portion is provided on both sides of the float.

  According to the first aspect of the present invention, since the float moves up and down following the fluctuation of the water level, the floating piece is appropriately prevented from flowing into the intake channel, and the curtain piece is placed in the flow direction of the main river. By providing it along the clinker stack, the floating material can be easily washed away from the float or the curtain piece, and the floating material can be easily discharged from the intake channel to prevent stagnation.

  Further, according to the second aspect of the present invention, there is an effect of preventing the float from stopping when the water level fluctuates.

  According to the third aspect of the present invention, it is possible to maintain the float horizontally by attaching a balance weight having an appropriate weight to the balance weight attachment portion.

  Furthermore, by disposing the floating substance inflow prevention device according to claims 1 to 3 at the intake of the main river, the floating substance is prevented from flowing into the intake channel, and the function of main equipment such as pumps and gates is reduced. Preventing obstacles before they occur.

  Therefore, since the dust remover has a lower dust removal capacity than the conventional one, there is an actual advantage of reducing the construction cost of installing the dust remover, and this device is coupled with the fact that it does not require any operating cost other than periodic inspection. It is useful as an auxiliary equipment for main equipment such as pumps and gates.

  1 is a longitudinal side view of a first embodiment of the present invention, FIG. 2 is a cross-sectional plan view, 1 is a main river, and 2 is an intake channel.

  1 and 2, reference numerals 3 and 3 denote guide rails provided on both sides of the water intake port 2a, and a stopper 3a is provided on the upper surface. Reference numeral 4 denotes a cylindrical float. Brackets 5 and 5 provided at both ends are engaged with the guide rails 3 and 3, respectively, and 11 curtain pieces 6 are arranged in a line in the flow direction of the main river 1 on the lower surface. Provided on clinker stack.

  3 is an enlarged plan view of the float of Example 1, FIG. 4 is a front view thereof, FIG. 5 is a bottom view thereof, FIG. 6 is a side view thereof, and brackets 5 and 5 provided at both ends of the float 4 are respectively Two side balance rollers 7, 7, 7, 7 are provided on the upper and lower sides, and a perforated balance weight 8 as shown in FIG. 7 is inserted into the upper and lower protrusions 5 a, 5 a of each bracket 5, 5. The top and bottom of the screw rod 9 to be tightened are nuts.

  The float 4 configured as described above smoothly moves up and down following the water level of the main river 1 and does not stop tilting even when the water level of the main river rapidly decreases. It is to be noted that adjustment of the waterline of the float 4 and adjustment of the horizontal state can be performed by inserting an appropriate number of balance weights 8 through the left and right balance weight mounting portions, that is, the screw rods 9 and 9.

  When the apparatus of this embodiment is placed at the inlet of the intake channel 2, large floating substances are prevented from flowing into the intake channel 2, and downstream of the main river along the curtain piece 6 by the water flow flowing through the main river. Shed in the direction.

  Moreover, the small floating thing in the intake channel 2 side is discharged | emitted to the main river side so that it may be sucked out by the flow of the main river between the curtain pieces 6 and 6. FIG.

  Therefore, since the suspended matter that becomes an obstacle to the dust remover does not flow into the intake channel 2, for example, it is possible that a dust remover that is automatically operated may malfunction due to suspended matter accumulated on the screen or the pump may malfunction. It is excellent in combination with the fact that only regular inspections are possible and no operating costs are incurred.

1 is a longitudinal side view of Example 1. FIG. FIG. 3 is a cross-sectional side view of the first embodiment. FIG. 3 is an enlarged plan view of the float according to the first embodiment. The enlarged front view of the float of Example 1. FIG. FIG. 3 is an enlarged bottom view of the float according to the first embodiment. FIG. 3 is an enlarged side view of the float according to the first embodiment. FIG. 3 is an enlarged plan view of a balance weight according to the first embodiment.

Explanation of symbols

1 Honkawa 2 Intake channel 2a Intake port 3 Guide rail 4 Float 5 Bracket 5a Projection piece 6 Curtain piece 7 Side balance roller 8 Balance weight 9 Screw rod

Claims (3)

A floating substance inflow prevention device installed at a water intake from the main river, wherein guide rails are provided on both sides of the water intake, and both ends of the float are engaged with the guide rail so as to be movable up and down, and the bottom surface of the float A floating substance inflow prevention device characterized in that an appropriate number of curtain pieces are attached in a clinker stack in a row. 2. The floating substance inflow prevention device according to claim 1, wherein side balance rollers are provided at both ends of the float engaged with the guide rail. The floating substance inflow prevention device according to claim 1 or 2, wherein a balance weight attaching portion is provided on both sides of the float.

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