JP3713583B2 - Dust control device for intake port - Google Patents

Description

[0001]
[Industrial application fields]
The present invention provides a branch waterway from an opening provided in a river or waterway revetment, divides the water flow, and uses the water flowing into the branch waterway for water supply, agricultural water, industrial water, etc. The present invention relates to a dust control device for a water intake for the purpose of allowing the dust flowing down along the water channel to flow downstream to the river or the water channel so as not to obstruct the water.
[0002]
[Prior art]
Conventionally, the dust flowing down the rivers and waterways together with the water has become an obstacle to water intake, and therefore the dust has been removed with a large amount of cost and a lot of labor.
[0003]
In other words, rod-like members that prevent the flow of dust are vertically arranged at appropriate intervals in the vertical direction or at an appropriate interval from the bottom of the channel to the downstream or in the entire water flow section of the branch channel. There has been a method in which a screen is constructed, and an operator uses a rake or a variety of mechanical devices to pull up the dust on the water channel and dispose of it by incineration or incineration.
[0004]
[Problems to be solved by the invention]
However, with this method, all of the dust that flows down with the water flowing into the branch channel is applied to this screen, and over time, the amount of dust deposited on the front of the screen increases and becomes an obstacle to water intake. Required a lot of money and a lot of labor, which was a big problem in managing the intake.
[0005]
More recently, the dust flowing in rivers and waterways is not only natural leaves, branches and grass, but also waste from households and various industries. Larger ones and plastics and metals that are difficult to handle have increased.
[0006]
For this reason, dust that exceeds the capacity of the pulling work flows at the intake when it rains, and sometimes it becomes impossible to take water.
[0007]
Also, the raised garbage is accompanied with great difficulty in disposing of it. In other words, it is impossible to pile up dust containing a large amount of plastic or metal and make it into compost, and since dust that has just been raised contains a large amount of water, it must be dried in the sun to burn. It is a troublesome person who needs to use auxiliary fuel such as heavy oil, and requires a lot of labor and cost for processing and disposal.
[0008]
Therefore, the dust control device for the intake port of the present invention is intended to solve such problems of the conventional intake port, and the dust flowing together with the flowing water of the river or waterway is not put into the branch waterway. Or trying to remove it from the water intake by letting it flow down.
[0009]
[Means for Solving the Problems]
That is, the dust control device for the intake port of the present invention is intended to remove the dust flowing along with the flowing water of the river or waterway from the intake port by flowing down the river or waterway without entering the branch waterway. is there.
[0010]
In other words, at a water intake intended to divide a water flow by providing a branch waterway from an opening provided in a river or waterway revetment and to use the water flowing into the branch waterway for water supply, agricultural water, industrial water, etc. The surface of the upstream revetment adjacent to the upstream surface of the rod-shaped member of the screen in which flat steel rod-shaped members with a circular upstream surface are arranged in the horizontal horizontal direction at appropriate intervals in the opening provided in the revetment By making a proper amount project from the surface of the downstream revetment, and providing a sufficiently large arc at the upstream end, the horizontal girder height of the flat bar member can be At the same time, at the downstream end of the length of the flat bar member made of flat steel, it prevents the dust from hanging on the upstream end of the downstream revetment, so that it flows along the river and waterway with running water. Enemy Dust passes through the intake port with the flowing water flowing down the rivers and waterways downstream without being divided into branch canals, it's not a failure of the intake.
[0011]
This effect is sufficiently effective when the flow rate of rivers and waterways is sufficient and the ratio of the amount of water divided into branch waterways is small, and the work of controlling the dust at the intake can be performed almost naturally. .
[0012]
By the way, when the flow rate of rivers and waterways is slow and the ratio of the amount of water divided into branched waterways is large, the dust that flows along with the flowing water is attracted and adhered to the surface of the screen. And cannot flow down to the downstream side of the waterway.
[0013]
In this case, flat bars made of flat steel with a circular upstream surface are arranged in an opening provided in a river or waterway revetment, arranged in a horizontal and horizontal direction at an appropriate interval, and parallel to each other. To be. In addition, a guide rail that is almost parallel to the rod-like member is fixed at a high place where it will not be submerged even during a flood at the revetment. Or, install a boom that performs parallel movement or telescopic movement in the vertical direction, or a combination of these movements, and lower the rake attached near the tip of the boom to the position in contact with the front of the screen by the movement of the boom or pull it up above the water surface. To be configured.
[0014]
Then, by moving the trolley from the upstream side to the downstream side according to the guide rail while bringing the rake into contact with the front surface of the screen by the boom, the dust on the front surface of the screen is moved to the downstream side, and the river downstream from the intake port Or remove the dust from the intake by placing it on the water flowing down the channel.
[0015]
Next, if the bogie is moved from the downstream side to the upstream side with the rake raised above the water surface by the boom, the device returns to the initial state so that it is possible to perform the dust removal work again if necessary. It becomes.
[0016]
In addition, a fixed weir and gate are installed immediately downstream of the river and waterway intakes to prevent water flow in the downstream direction of the river and waterway and promote the division of water into branch waterways. In this case, even if the dust on the front side of the screen is moved downstream as described above, the water flow in the downstream direction of the river or waterway cannot be flowed away and stays near the water intake. It tends to be an obstacle to water intake.
[0017]
In such a case, a lower overflow section is installed near the shore where the fixed weir or gate intake is provided, or an overflow gate is installed, and discharged from these when necessary. Therefore, if the flow that flows downstream in the vicinity of the water surface near the front of the screen is concentrated, the dust that has been moved downstream by the rake from the front of the screen rides on the fixed weir or gate Eliminated further downstream.
[0018]
[Action]
Since the dust control device for the intake port according to the present invention is configured as described above, the dust flowing down the river or waterway with the water can be caused to flow downstream in the river or waterway so as not to obstruct the water. it can. Therefore, disposal work such as incineration of dust at the intake or transporting and dumping becomes unnecessary, and management of the intake becomes very cheap and easy.
[0019]
Furthermore, it is possible to prevent a situation in which a large amount of dust flows at a stroke, such as during a flood, and closes the front of the water intake, making it impossible to take water.
[0020]
【Example】
Hereinafter, an embodiment of a dust control device for a water intake according to the present invention will be described in detail with reference to the drawings.
[0021]
FIG. 1 thru | or 4 demonstrates one Example of the dust control apparatus of the water intake of this invention.
[0022]
FIG. 1 is a plan view of a water intake provided with a dust control device, FIG. 2 is a front view of the water intake, FIG. 3 is a cross-sectional view taken along the line II, and FIG.
[0023]
A branch water channel 3 is attached from the opening 2 provided in the revetment 6 on the left bank of the water channel 1, and a part of the water flowing down the water channel 1 is divided into the branch water channel 3 and has a function of a water intake.
[0024]
In the opening 2 provided in the revetment 6 on the left bank of the water channel 1, a flat steel bar-like member 4 with a sufficiently large horizontal girder height is arranged at almost equal intervals in the horizontal and horizontal direction and mixed into running water. Thus, the dust 5 that has flowed in is prevented from flowing into the branch water channel 3. Moreover, the upstream surface 4-3 of the rod-shaped member 4 made of flat steel is circular, and the resistance of the water flow divided into the branch water channels 3 is reduced.
[0025]
Further, at the upstream end 4-1 of the flat steel rod-shaped member 4, the upstream surface 4-3 is made to coincide with the surface of the revetment 6, and the dust 5 that has flowed in the running water smoothly flows into the flat steel rod-shaped member. 4, and in addition, by providing a receding portion 7 of the revetment 6 in the vicinity of the downstream end 4-2 of the flat steel bar-shaped member 4, the upstream surface 4-3 of the flat steel bar-shaped member 4 is provided. Is protruded from the surface of the revetment 6 by an appropriate amount, so that the debris 5 that has been moved by the water flow in the water channel direction along the upstream surface 4-3 of the bar-shaped member 4 made of flat steel is not obstructed. To escape from the front of the opening 2.
[0026]
At this time, the horizontal girder height of the flat bar member 4 made of flat steel is set to a size that prevents the dust bar 5 from being wrapped around the flat bar member 4 made of flat steel. This is effective in preventing the situation where it is impossible to escape to the retreating portion 7 of the revetment 6 in the vicinity of the intersection 8 between the downstream surface of the revetment and the right bank of the branch waterway 3.
[0027]
In this embodiment, since the gradient of the water channel 1 is sufficiently large and there is sufficient momentum of the water flowing through the water channel 1 and the ratio of the amount of water divided from the water channel 1 to the branch water channel 3 is small, the upstream surface of the rod-shaped member 4 The dust 5 hanging on 4-3 can flow down naturally by the momentum of water.
[0028]
5 to 8 illustrate a second embodiment of the dust control apparatus for a water intake according to the present invention.
[0029]
FIG. 5 is a plan view of the water intake of the second embodiment in which the dust control device for the water intake of the present invention is installed. FIG. 6 is a plan view of the water intake by moving the rake from upstream to downstream by the drive device. FIG. 7 is a cross-sectional view of the water intake port from which dust is to be removed from the front surface, FIG. 7 is a cross-sectional view of the haha, and FIG. 8 is a cross-sectional view of the water intake port that shows the situation of the rake and drive device when returning the rake to the upstream direction.
[0030]
In the opening 2 provided in the revetment 6 on the left bank of the water channel 1, a flat steel bar-like member 4 with a sufficiently large horizontal girder height is arranged in parallel in the horizontal and lateral directions to form a screen. The surface connected to the upstream surface 4-3 of the rod-shaped member 4 is a vertical plane.
[0031]
Further, a guide rail 10 parallel to the rod-like member 4 is provided at a position higher than the revetment top where it will not be submerged even during a flood, and a carriage 12 having wheels 11 that roll according to the guide rail 10 is provided above the guide rail 10. Driven according to the guide rail 10 by the fixed rack gear 13 and the gear 14 and the gear 15 of the output shaft of the motor 16 with brake with speed reducer, the vehicle travels.
[0032]
A boom 19 attached to the boom support member 17 of the carriage 12 with a pin 18 is attached with a rake 20 and a dust guide net 21, and is connected to a boom raising / lowering arm 22 on the boom 19 with a pin 23. The other end of 24 is connected to a hydraulic jack support 26 of the carriage 12 by a pin 25.
[0033]
Now, the carriage 12 travels to a position where the wheels 11 come into contact with the upstream stopper 27 of the guide rail 10, and as shown in FIG. 7, the hydraulic jack 24 is extended to make the boom 19 substantially vertical, and the rake 20 and the dust guide net 21 are The rake 20 is lowered into water and brought into light contact with the bar-like member 4 of the screen. In this state, the carriage 12 is driven by the rack gear 13 and the gears 14 and 15 meshing with the rack gear 13 and the brake-equipped motor 16 with a speed reducer, and travels on the guide rail 10 from the upstream side to the downstream side of the water channel 1. Reaches the position where it contacts the downstream stopper 28 of the guide rail 10, the boom 19, the rake 20, and the dust guide net 21 remove the dust 5 that has stopped near the upstream surface 4-3 of the rod-shaped member 4 from the front of the screen 6. Are removed up to the retreating portion 7.
[0034]
If it does in this way, since the refuse 5 will not be attracted | sucked by the water flow divided | segmented into the branched water channel 3, it will flow down according to the water flow which flows down the water channel 1, and will not become an obstacle of water intake. That is, the momentum of the water flowing through the water channel 1 is weak, and the ratio of the amount of water divided from the water channel 1 into the branch water channel 3 is large, so that the garbage 5 is pulled away from the rod-like member 4 of the screen only with the force of natural flowing water. Even if it is difficult, the boom 19, the rake 20, and the dust guide net 21 attached to the carriage 12 that travels according to the guide rail 10 remove the dust 5 from the front of the screen to the retreating portion 7 of the revetment 6, and flow through the water channel 1. It can be put on the falling water.
[0035]
FIG. 6 shows the front face of the water intake port during this exclusion operation.
[0036]
Now, when the refuse 5 is removed in the downstream direction as described above, the hydraulic jack 24 is contracted as shown in FIG. 8 and the boom 19, rake 20, and dust guide net 21 are lifted above the water surface, and the rack gear 13, gear 14, When the carriage 15 is driven by the gear 15 and the motor 16 with a speed reducer and travels from the downstream side to the upstream side and returns to the position where the wheel 11 contacts the upstream stopper 27 of the guide rail 10, it waits until the next dust removal operation. Become.
[0037]
In this embodiment, the rack gear is used as the driving means of the carriage 12. However, not only can the application of various traveling driving means such as a hydraulic jack, a wire rope, and a chain be possible depending on the size of the equipment, the length of the traveling distance, etc. The motion of the boom for positioning the rake and the dust guide net in the vicinity of the upstream surface 4-3 of the rod-shaped member of the screen or lifting it up to the water surface is not only the undulating motion as in this embodiment, Due to the parallel movement in the vertical direction, the expansion and contraction movement, or a combination of these movements, the height of the screen is large, so there are various conditions such as when removing the dust by dividing the height into several parts. Can adapt.
[0038]
FIGS. 9 through 12 illustrate a third embodiment of the intake dust control apparatus according to the present invention. FIG. 9 is a plan view thereof, and FIG. 10 is a rear view of the damming gate. FIG. 11 is a rear view of the weir gate, and shows the state where the undulating gate has fallen. FIG. 12 is a sectional view of the knee.
[0039]
In FIG. 9, the branch water channel 3 is attached from the opening 2 provided in the revetment 6 on the left bank of the water channel 1, and a part of the water flowing down the water channel 1 is divided into the branch water channel 3 and has the function of a water intake. The rod-shaped member 4, the guide rail 10, the carriage 12, the boom 19, the rake 20, the dust guide net 21 and the like are configured exactly the same as in the second embodiment.
[0040]
At this time, the weir gate 30 provided downstream from the opening 2 of the water channel 1 is composed of two gates, a right bank and a left bank, and both door bodies are sliding gates that are opened and closed on the operation table 32 via the spindle 31. The machine 33 is raised and lowered. By the way, the right bank side door body 34 is a simple slide gate door body, but the left bank side door body 35 close to the water intake is cut out at the upper part, and the undulating door body 36 is attached.
[0041]
A hydraulic jack 41 is attached by a pin 40 to a hoisting door body 36 that moves up and down by a rotary shaft 39 supported by a bearing 38 attached to a main girder 37 of a left bank door body 35, and the other end of the hydraulic jack 41 is a pin. 42 is attached to a hydraulic jack cradle 43 below the left bank side door body 35.
[0042]
Now, if the hydraulic jack 41 is extended as shown in FIG. 10, the hoisting door body 36 stands up and the water flowing down the water channel 1 is blocked, and all flows from the opening 2 to the branch water channel 3.
[0043]
In this state, the boom 19 attached to the carriage 12 that travels according to the guide rail 10 moves the rake 20 from the upstream side to the downstream side while making light contact with the upstream surface 4-3 of the rod-like member 4, so that the intake port Even if the dust 5 hanging on the rod-like member 4 is removed up to the vicinity of the retreating portion 7 of the revetment 6, it cannot flow down the water channel 1, and therefore it returns to the water intake by the water flowing in the branch water channel 3.
[0044]
Therefore, as shown in FIG. 11, when the hydraulic jack 41 is contracted to cause the undulating door body 36 to fall down, a part of the flowing water in the water channel 1 is discharged downstream from the space surrounded by the side diversion plate 44 and the undulating door body 36. Is done. Therefore, a flow of water is formed from the front surface of the intake port through the undulating door body 36 at the upper part of the left bank side door body 35 through the vicinity of the retreating portion 7 of the revetment 6.
[0045]
In this state, the boom 19 attached to the carriage 12 that travels according to the guide rail 10 moves the rake 20 from the upstream side to the downstream side while making light contact with the upstream surface 4-3 of the rod-like member 4, so that the intake port If the dust 5 hanging on the rod-like member 4 is removed to the vicinity of the retreating portion 7 of the revetment 6, the dust 5 rides on the water flow and flows downstream from the weir raising gate 30.
[0046]
FIG. 12 shows a cross section of the left bank door 35 at this time.
[0047]
In this way, when the refuse 5 flows from the upstream side to the downstream side of the weir gate 30, it is effective to discharge it near the water surface where the density of the dust 5 is high and close to the front surface of the intake port. It is valid.
[0048]
As shown in this example, the overflow gate includes a undulating gate and a top gate of the two-stage gate that is pushed down to overflow the top of the gate. Make sure that any type is used effectively. Can do.
[0049]
Moreover, even when weiring with a fixed weir for water intake, the portion near the shore where the intake of the fixed weir is provided is made lower than the others, and the momentum of water flowing over the fixed weir is taken from the vicinity of the front of the water inlet 6 If it is configured to concentrate in the vicinity of the retreating portion 7, the same effect as in the third embodiment can be obtained.
[0050]
【The invention's effect】
Since the dust control device for the intake port according to the present invention is configured as described above, the dust flowing down the river or waterway along with the water can be allowed to flow downstream in the river or waterway so as not to obstruct the water. it can. Therefore, disposal work such as incineration of dust at the intake or transporting and dumping becomes unnecessary, and management of the intake becomes very cheap and easy.
[0051]
In addition, there is an effect that it is possible to prevent a situation where a large amount of dust is flowing at a time such as a flood and the front of the water intake is blocked and water intake becomes impossible.
[0052]
Furthermore, unlike the scraping-up type dust removal mechanism, the load on the rake is not so great, so the durability of the device is greatly improved, and it is possible to provide a dust control device for the intake that does not have a long-term failure. became.
[Brief description of the drawings]
FIG. 1 is a plan view of an embodiment in which a dust control device for a water intake according to the present invention is installed.
FIG. 2 is a front view thereof.
FIG. 3 is a cross-sectional view taken along the line II.
FIG. 4 is a cross-sectional view of a roller.
FIG. 5 is a plan view of a second embodiment in which a dust control device for a water intake according to the present invention is installed.
FIG. 6 is a front view of the rake and the driving device during the dust removal operation.
FIG. 7 is a cross-sectional view of a ha-ha.
FIG. 8 is a longitudinal sectional view of a water intake port, showing a rake and a drive device when a rake is raised above the water surface and returned to the upstream side.
FIG. 9 is a plan view of a third embodiment in which a dust control device for a water intake according to the present invention is installed.
FIG. 10 is a rear view of the weir gate, showing the undulating gate standing up;
FIG. 11 is a rear view of the weir gate and shows the state in which the undulation gate has fallen down.
FIG. 12 is a sectional view of a knee.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Water channel 2 Opening part 3 Branch water channel 4 Bar-shaped member made of flat steel 4-1 The upstream end of a rod-shaped member 4-2 The downstream end of a rod-shaped member 4-3 The upstream surface of a rod-shaped member 5 Dust 6 Revetment 7 Retreat part 8 Intersection 10 Guide rail 11 Wheel 12 Bogie 13 Rack gear 14 Gear 15 Gear 16 Motor with brake 17 with reducer Boom support 18 Pin 19 Boom 20 Rake 21 Dust guide net 22 Boom lifting arm 23 Pin 24 Hydraulic jack 25 Pin 26 Hydraulic jack support 27 Upstream stopper 28 Downstream stopper 30 Weir gate 31 Spindle 32 Operating table 33 Switch 34 Right bank side door body 35 Left bank side door body 36 Ridging door body 37 Main girder 38 Bearing 39 Rotating shaft 40 Pin 41 Hydraulic jack 42 Pin 43 Hydraulic jack Receptacle 44 Side flow guide plate

Claims (2)

Divide the water flow by opening a branch waterway from the opening provided in the river or waterway revetment, and use the water flowing into the water supply branch for water supply, agricultural water, industrial water, etc. A flat steel bar member with a circular upstream surface in the opening provided in the screen is arranged in a substantially horizontal horizontal direction at an appropriate interval. The upstream surface of the screen bar member is smooth with the surface of the adjacent upstream revetment. The flat steel bar-shaped member is made to protrude from the surface of the revetment on the downstream side by an appropriate amount , and the horizontal girder height of the flat steel bar-shaped member is sized to prevent wrapping of dust. At the downstream end of the length, the dust control device for the intake port is characterized in that the dust easily flows down in the direction of the river or waterway without being disturbed from the upstream end of the downstream revetment . Divide the water flow by opening a branch waterway from the opening provided in the river or waterway revetment, and weir the river or waterway at the intake where water flowing into the branch waterway is to be used for water supply, agricultural water, industrial water, etc. A fixed weir or gate for the purpose of raising water is installed to encourage diversion to the branch waterway, and at the same time, the low overflow section or overflow type is located near the shore where the intake of the fixed weir or gate is provided. By providing a gate, the flow of water that flows down the river and water channel without being diverted to the branch water channel is concentrated at a position near the water surface near the front of the screen, so that the dust in the water is downstream of the river or water channel from the intake port. A dust control device for a water intake, which is configured to be easily conveyed by running water.

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