JPS6316870Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a pumping device for hydroelectric power generation using seawater, and its purpose is to utilize the energy of seawater waves, swells, or wind acting near the sea surface for pumping water with a simple structure. The purpose of the present invention is to provide a water pumping device in which the

An embodiment of this invention will be described below with reference to the drawings.

In the water pumping device 1 shown in Fig. 1, 2 is a boat-shaped floating body floating on the sea, and pillars 3, 3 are erected at the front and rear ends of this floating body 2, and each pillar 3 has a ship-shaped floating body floating on the sea. A horizontal arm 3a is provided.
Reference numerals 4 and 4 denote cylindrical elevating bodies suspended from the ends of each horizontal arm 3a via wire ropes 5, the lower end surfaces of which are located substantially on the same plane as the sea surface WL. 6, 6 are bottomed cylindrical lifting bodies vertically installed on the seabed B by support legs 7, the upper ends of which are opened above the sea surface WL, and the corresponding lifting bodies 4 are oriented in the radial direction. Interpolation is performed across a gap S.
8, 8 is a seawater inlet provided on the side of each pumping body 6 at an appropriate depth below the sea surface WL, and the inlet has a check valve that only allows seawater to flow into the pumping body 6. 9 are arranged. 10a, 10b,
Reference numeral 10c denotes a seawater outlet provided on the side of each pumping body 6 at an appropriate height above the sea surface WL. Of these, the seawater outlet 10a is connected to the offshore water collection pool 11 shown in FIG. A water pipe 12 is connected,
The other seawater outlets 10b and 10c are sealed. In addition, as shown in FIG.
A, 12B, 12C, 12D are connected,
The water collection pool 11 further communicates via a conduit 13 to a reservoir 14 for hydroelectric power generation separated from the sea by an embankment D. (See Fig. 3) Next, to explain the operation and effect of the above embodiment, first, in the state shown in Fig. 1, seawater flows into each pumping body 6 through the seawater inlet, and the water level is maintained at the same level.
WL has been reached. From this state, when the floating body 2 sways in the direction P in the figure due to wave swells or wind action and the descending-side elevating body 4 is submerged in seawater, the check valve 9 of the corresponding seawater inlet 8 is closed. Because there is
The seawater in the corresponding lifting body 6 rises in the gap S between the lifting body 4 and the inner wall of the lifting body 6 according to the amount of submersion of the lifting body 4. When such rising water reaches the height h, it flows into the collection pool 11 from the seawater outlet 10a through the water conduit 12. Next, when the floating body 2 swings in the Q direction in the figure due to the reaction and the descending elevating body 4 rises, the amount of seawater in the pumping body 6 decreases by the amount that flows into the water collection pool 11, and therefore The water level becomes lower than WL, but this difference in water level creates a pressure difference before and after the check valve 9, which opens instantly, and seawater immediately flows into the pumping body 6 to lower the water level WL.
is maintained. Moreover, such one elevating body 4
As the lift body 4 rises, the other elevating body 4 descends, so that the seawater in the corresponding lifting body 6 is pumped up and flows into the water collection pool 11 in the same manner as described above.

As described above, as the floating body 2 swings, the water pumping device 1 pumps seawater into the water collection pool 11 by alternately performing a pumping action using each set of the front and rear elevating bodies 4 and the pumping body 6. , seawater is sent into the offshore water collection pool 11 from other water pumping devices by a similar pumping action. As the water level rises due to the inflow of seawater into the water collection pool 11, the water level of the reservoir 14 also rises, and the difference between the water level of the reservoir 14 and the sea level WL is used for hydroelectric power generation.

In the above embodiments, the elevating body 4 and the water pumping body 6 are provided only in the front and back direction of the floating body 2, but they may be provided in the left and right direction or any other direction.
In addition, the water conduit 12 is connected to other seawater outlets 10b, 1
By switching the connection to 0c, the reservoir 14
The water level is adjustable. Further, the height of the elevating body 4 may be adjustable using a winch or the like.

As described above, this idea consists of a floating body floating on the sea, an elevating body that moves up and down following the rocking of the floating body, and a structure in which the elevating body is inserted with an appropriate gap and the upper end opens above the sea surface. , a cylindrical pumping body with a bottom, a seawater inlet is provided at an appropriate depth below the sea surface of the pumping body, and the inlet is provided with a non-return check that only allows seawater to flow into the pumping body. By installing a valve and providing an outlet at an appropriate height above the sea surface of the pumping body to a water collection pool or the like leading to a reservoir for hydroelectric power generation, the seawater in the pumping body can be drained from the lowering of the lifting body. The seawater is pumped up by the water movement and guided from the outlet to the collection pool, etc., and then to the reservoir, and when the elevating body rises, the same amount of seawater as the pumped up seawater is pumped from the inlet into the pumped body due to the water level difference. Since the water flows in automatically, it has the advantage that the energy of waves, swells, and wind can be used for pumping water with a simple structure.

[Brief explanation of the drawing]

The figures show one embodiment of this invention. Figure 1 is a partially sectional front view of the water pumping device, Figure 2 is a side view showing the water pumping device together with the water collection pool, and Figure 3 is the water pumping system for hydroelectric power generation from the water collection pool. It is a schematic diagram showing a pipe line leading to a reservoir. 1... Lifting device, 2... Floating body, 3... Support column, 4
... Lifting body, 6... Lifting body, 8... Seawater inlet,
9...Check valve, 10a, 10b, 10c...Seawater outlet, 11...Water collection pool, 14...Reservoir.

Claims (1)

[Scope of utility model registration request] A floating body floating on the sea, an elevating body that moves up and down following the rocking of the floating body, and a bottomed cylindrical lifting body in which the elevating body is inserted with an appropriate gap and the upper end opens above the sea surface. A seawater inlet is provided at an appropriate depth below the sea surface of the pumping body, and a check valve is disposed at the inlet to allow seawater to flow only into the pumping body. A water pumping device for hydroelectric power generation using seawater, characterized in that an outlet is provided at an appropriate height above the sea level to a water collection pool or the like leading to a reservoir for hydroelectric power generation.