JP3079406U - Double weir or two-stage weir - Google Patents

Abstract

(57) [Summary] [Problem] To make a double weir, a two-stage weir, and to flow the settling water (E) which becomes the sludge layer of the weir lake (3). SOLUTION: An opening (D) is made on a gate (8) of an upper weir (1). Settling water (E) sinks into the opening (D), floats at the interval (6) between the upper weir (1) and the lower weir (1), and measures water use from the flood control opening (N). The water level (A) is measured at the gate (8) of the lower weir section (2), and the settling water (E) flows too much.
In addition, the fixed weir (B) of the lower weir (2) reaches the water level (A), and the settling water (E) leaks to the lower weir (7).

Description

[Detailed description of the invention]

[0001]

[Field to which the invention belongs]

 The present invention relates to a movable weir, a fixed weir, and a double weir or a two-stage weir that keeps the water level of a sluice gate and allows sinking water to flow into a sludge layer.

[0002]

[Prior art]

 The conventional method of flowing surplus water from movable weirs, fixed weirs, and sluice gates that raise water level by raising the level of fresh water is as follows.The movable weir is flushed from the top of the gate, and sinking water is raised by lifting the gate. I have. The sluice gates that become high tide always close the sluice gates and provide a suction channel. When the water level rises due to heavy rain etc., excess water flows with a pump, and when the water level falls to the used water level, the pump stops. In the fixed weir, surplus water from the upper water of the weir lake flows under the weir.

[0003]

[Problems to be solved by the invention]

 When the gate of the conventional movable weir is lifted and opened to release the settling water that will be the bottom of the excess water, it will squirt strongly, and the water level of the weir will not be maintained and the dam will increase and the danger of fish will disappear, Since excess water is flowing from the upper part of the gate, turbid water accumulates at the bottom of the weir, decaying, the water quality deteriorates, and purification costs for drinking water are high. There is a problem that fish and shellfish do not come and go and it is difficult to survive. Also, when the water level of the floodgate rises due to heavy rain, etc., the sink water is pumped out and the pump that reaches the use water level is stopped. However, the sediment water often does not flow. There are no fish and shellfish traffic, and it is difficult for raft and ship traffic. In addition, it will be a natural destruction if left as is.

The present invention has been made in view of the problems of the prior art, and has as its object to remove dust and the like flowing along with a clear stream flowing from a river, to a movable weir, and to fix the dust. The purpose is to maintain the water level so that there is no stagnation of the weirs and sluices at the floodgates, to always flow naturally, and to provide raft and ships as canals, as well as more fish and shellfish. With the goal.

[0005]

[Means to solve the problem]

 In order to achieve the above-mentioned purpose, in the weir of the present plan, the interval (6) between the upper weir (1) and the lower weir (2) is changed to the waterway (5) to the weir (J). A flood control port (N) is provided. The upper weir (1) will be a movable weir, and the lower weir (2) will be provided with a movable weir and a fixed weir (B) with an interval (6) that matches the amount of water. The length of the gate (8) of the movable weir in the lower weir part (2) and the length of the fixed weir (B) are the same as the water level (A) of the weir lake (3). Then, the gate (8) of the upper weir (1) is suspended to make the opening (D) into which the settlement water (E) flows.

[0006]

[Embodiment of the invention]

 The double weir and the two-stage weir constructed as described above are suspended at the gate (8, 8) of the upper weir (1), and the sediment water (E) sinks into the openings (D, D). The sink water (E) rises in the water channel (5) at the interval (6) between the (1) and the lower weir (2), and the water is measured from the flood control opening (N). The gate (8) of the lower weir (2) ), The settling water (E) leaks from the upper part (H) into the dam (7). In addition, much of the settling water (E) leaks from the inclined surface (V) of the fixed weir (B) and flows down to the weir (7).

[0007]

【Example】

 The embodiment will be described with reference to the drawings. The distance (6) between the upper weir (1) and the lower weir (2) of the double weir or the two-stage weir is 30 meters. 5) Install a flood control port (N) at the bank (J). The upper weir section (1) is caught at the double gates (8, 8) of the movable weir to form openings (D, D) long enough for the settling water (E) to flow. A fixed weir (B) with a small slope toward the shore (J) of the lower weir (2), and a natural weir (X) placed on the slope (V) allows the fish to move back and forth. ). A movable weir having a gate (8) that moves up and down will be provided beside the fixed weir (B) in the lower weir (2) so that ships and the like can move in and out.

[0008]

[Effect of the invention]

 Since the present invention is configured as described above, it has the following effects. The water level (A) of the weir lake (3), which always flows, is constant, and the operation of the gate (8) is not necessary frequently, and the water level (A) can be managed naturally. The sediment water (E) of the weir lake (3) always circulates and flows under the weir (7), so that the water quality is improved, fish can climb up and down, the survival rate of fish is improved, and the cost of purification as water is reduced. . By setting the fixed weir (B) to a gentle slope and placing the natural stone (X) on the slope (V), a babbling feeling can be obtained.

In addition, the gate (8, 8) can be fully opened against a flood and has a function as a canal, so that a raft, a ship, and the like can travel. In a weir where no salinity appears due to the siphon effect, a large amount of water accumulates on the weir bottom (4) deeper than the weir (7). In rivers, such as weir lake (3), where sedimentary water (E) does not flow, setting up the upper weir (1) allows sedimentary water (E) to flow.

[Brief description of the drawings]

FIG. 1 is a cutaway perspective view in which a gate of an upper weir is opened, a lower weir is fixed to a bank and a movable weir gate is closed at the center.

[Explanation of symbols]

1 ‥ Upper weir 2 ‥ Lower weir 3 ‥ Weir lake 4 ‥ Weir bottom 5 ‥ Waterway 6 ‥ Spacing 7 ‥ Below weir 8 ‥ Gate 9 ‥ Machine room A ‥ Water level B ‥ Fixed weir D ‥ Opening E ‥ Settling water F ‥ Hoist J ‥ Weir V ‥ Slope X
‥ Natural stone H ‥ Upper part S ‥ Pulley Q ‥ Retention pillar R ‥ Pier P ‥ Rail groove N ‥
Flood control U ‥ rope

Claims (1)

[Utility model registration claims] 1. A gate (8) of an upper weir (1), which is provided with a flood control port (N) in a water channel (5) at an interval (6) between an upper weir (1) and a lower weir (2). The gate (8) of the lower weir (2), which rises into an opening (D) through which the settling water (E) flows.
To maintain the water level (A) and leak under the weir (7), or
A double weir or a two-stage weir that keeps the water level (A) at the fixed weir (B) of the lower weir (2) and keeps the settling water (E) leaking below the weir (7).