JPS6352232B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevating power generation facility installed in a river, irrigation canal, or the like.

Conventionally, reverse regulating dams and the like installed at submerged weirs and the like are not equipped with power generation equipment, and the current situation is that water is discharged wastefully.

On the other hand, when installing hydroelectric power generation equipment on a river,
The embankment on the side of the river gate must be bent outward to secure a large area between the embankment and the gate, and the power plant must be built within this area, which increases construction costs. Also, depending on the location, it may not be possible to secure land for the construction of a power plant.

Therefore, the present invention provides an elevating type power generation equipment that solves such problems, and its features are that a submerged weir is provided at an appropriate location on the river, a movable weir is disposed on the submerged weir, A suction pipe is provided that penetrates under the submerged weir from the riverbed upstream of the submerged weir, and above the entrance of the suction pipe is a water conduit whose axis is along a vertical line and a generator main body. The reason is that the hydroelectric generator opens into the upper part of the water blocked by the weir and is arranged so that it can be raised and lowered freely.This configuration eliminates the need for special land for installing the hydroelectric generator, making construction easier. The cost is extremely low, and hydraulic energy, which has been overlooked in the past, can be used effectively. In addition, since the suction pipe is formed by submerging from the riverbed upstream of the weir and penetrating under the weir, it is possible to increase the draft effect even when the downstream water level is low, and furthermore, the axis of the hydroelectric generator is vertical Since it is placed along a line, the propulsion force can be transferred to the riverbed.

Hereinafter, one embodiment of the present invention will be described based on the drawings. 1 is a submerged weir installed at a suitable location on a river; 2 is a movable weir disposed above the submerged weir 1 so that it can be raised and lowered; and 3 is a curve that passes from the river bottom upstream of the submerged weir 1 to below the submerged weir 1. 4 is a hydraulic power generator disposed above the inlet of the suction pipe 3, and a water conduit pipe 4A
and a generator main body 4B, the axis of which is along a vertical line, and the entrance of the water conduit 4A opens into the upper part of the water blocked by the movable weir 2. Reference numeral 5 denotes a machine frame for supporting the hydroelectric generator 4, which is placed on the riverbed, and is lifted up along with the hydroelectric generator 4 by a crane (not shown) during floods or during generator maintenance. Reference numeral 6 denotes a shutoff gate disposed at the entrance of the suction pipe 3, which opens the suction pipe 3 in synchronization with the generator 4 when power generation starts, and also shuts off the suction pipe 3 to stop power generation. .
By the way, due to the existence of the submerged weir 1, the movable weir 2 becomes small and the influence of the suction pipe 3 is not transmitted to the movable weir 2. The movable weir 2 is normally placed on the submerged weir 1 to store water for power generation as shown in the figure, and is raised during a flood to release the flood flow. The suction pipe 3 discharges water that has passed through the hydroelectric generator 4 to the downstream side, thereby improving the efficiency of the hydroelectric generator 4.

In the above configuration, upstream water enters the generator 4 from the upper end of the water conduit 4A and rotates the water wheel, thereby generating electricity. Next, the water flowing out from the lower end of the water conduit pipe 4A enters the suction pipe 3 and is then discharged downstream.

As described above, according to the elevating power generation equipment of the present invention, there is no need for a special site for installing a hydroelectric generator, and the construction cost is extremely low.
This allows effective use of hydraulic energy, which has been overlooked. In addition, since the suction pipe is formed by submerging from the riverbed upstream of the weir and penetrating under the weir, it is possible to increase the draft effect even when the downstream water level is low, and furthermore, the axis of the hydroelectric generator is vertical Since it is placed along a line, the propulsion force can be transferred to the riverbed.
Furthermore, the water in the upper layer that flows from the water pipe into the suction pipe and is discharged has extremely little mud, etc., which can reduce wear on the hydroelectric generator and the accumulation of mud on the water pipe and suction pipe. When this elevating power generation equipment is installed in an irrigation canal, the water discharged from the suction pipe and led to the fields is relatively warm water from the upper layer, which can prevent root rot of rice, for example.

[Brief explanation of the drawing]

The figure is a longitudinal sectional view showing an embodiment of the present invention. 1... Submerged weir, 2... Movable weir, 3... Suction pipe,
4...hydroelectric generator, 4A...water pipe, 4B...generator body, 5...machine frame, 6...blocking gate.

Claims (1)

[Claims] 1. A submerged weir is installed at an appropriate location on a river, a movable weir is placed above the submerged weir, a suction pipe is provided that penetrates from the river bed upstream of the submerged weir under the submerged weir, and above the entrance of the suction pipe, A lifting device characterized in that a hydraulic power generator is provided, which is made up of a water conduit whose axis is along a vertical line and a generator main body, and whose inlet of the water conduit opens into the upper part of the water blocked by the movable weir, and which is movable up and down. type power generation equipment.