Hydroelectric power generation system

Abstract

We provide a hydroelectric power generation system that is not restricted by location. [Solution] A hydroelectric power generation system S comprising a water storage tank 10, a water turbine 20 driven by water supplied from the water storage tank, and a generator connected to the drive shaft of the water turbine 20, wherein the water storage tank 10 is a hollow rectangular body with an inverted trapezoidal shape and has water supply sections 12L and 12R at its lower end. The water turbine 20 is disposed below one side and below the other side of the water storage tank 10, respectively.

Description

Technical Field

[0001] The present invention relates to a hydroelectric power generation system. More specifically, it relates to a hydroelectric power generation system that is not restricted by the installation location.

Background Art

[0002] Conventionally, hydroelectric power generation using the water flow energy of rivers has been known.

[0003] The applicant of the present application has already proposed a hydroelectric power generation device that utilizes such water flow energy (see Patent Document 1).

[0004] That is, a hydroelectric power generation device installed at the lower part of a river or a water channel with an upper and lower level difference on the riverbed, having a water fall part that falls while concentrating the flowing water from the upper stage side, a water fall channel connected to the lower end of the water fall part that drops the water fall to a water wheel, and a water discharge channel connected to the water fall channel that discharges the water fall from the water fall channel downstream, wherein the water fall channel has a water storage area defined by an assumed upper limit and an assumed lower limit water level, the water fall channel has a water volume adjustment plate with a driving source above the water wheel, the driving source is configured to drive the water volume adjustment plate to be retractable in the horizontal direction, and the water storage volume of the water storage area is adjusted between the assumed upper limit water level and the assumed lower limit water level by adjusting the opening width of the water fall channel by the water volume adjustment plate. A hydroelectric power generation device has been proposed.

[0005] However, it has been found that the hydroelectric power generation device according to the previous proposal of the applicant has a problem that the installation location is limited to a river or a water channel with an upper and lower level difference.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0007] This invention was made in view of the problems with the hydroelectric power generation device proposed by the applicant in the past, and aims to provide a hydroelectric power generation system that is not restricted by the installation location. [Means for solving the problem]

[0008] This invention relates to a hydroelectric power generation system comprising a water storage tank, a water turbine driven by water supplied from the water storage tank, and a generator connected to the drive shaft of the water turbine, wherein the water storage tank is a hollow rectangular body with an inverted trapezoidal shape and has a water supply section at its lower end.

[0009] In the hydroelectric power generation system of this invention, it is preferable that the water turbines are arranged below one side of the water storage tank and below the other side, respectively.

[0010] Furthermore, in the hydroelectric power generation system of this invention, it is preferable that each generator is arranged on the same side.

[0011] In the first embodiment of the hydroelectric power generation system of the present invention, the water supply section has a water flow adjustment plate that is slidable to adjust the amount of water supplied.

[0012] In a second embodiment of the hydroelectric power generation system of the present invention, the water supply section is provided with a water supply pipe. In this case, it is preferable that the water supply pipe has a flow control valve. [Effects of the Invention]

[0013] As described above, the hydroelectric power generation system of this invention has the excellent effect of having no restrictions on the installation location and being able to generate electricity with a small amount of water.

[0014] Furthermore, in a preferred embodiment of this invention, since one water tank is configured to drive two water turbines, it has the excellent effect of being able to generate twice the amount of electricity with just one water tank. [Brief explanation of the drawing]

[0015] [Figure 1] It is a schematic diagram of a hydroelectric power generation system according to Embodiment 1 of the present invention. [Figure 2] It is a schematic diagram of a hydroelectric power generation system according to Example 1 of the present invention, where (a) shows a front view and (b) shows a side view. [Figure 3] It is a schematic diagram of a hydroelectric power generation system according to Embodiment 2 of the present invention. [Figure 4] It is a schematic diagram of a hydroelectric power generation system according to Example 2 of the present invention, where (a) shows a front view and (b) shows a side view.

Mode for Carrying Out the Invention

[0016] Hereinafter, the present invention will be described based on embodiments with reference to the accompanying drawings, but the present invention is not limited to such embodiments.

[0017] Embodiment 1 In FIG. 1, a hydroelectric power generation system (hereinafter simply referred to as a system) S1(S) according to Embodiment 1 of the present invention is schematically shown.

[0018] As shown in FIG. 1, the system S1 mainly includes a water storage tank 10, a waterwheel 20, a water supply adjustment plate 30 that can move forward and backward to adjust the water volume to the waterwheel 20, and a generator (not shown) connected to the waterwheel 20.

[0019] The water storage tank 10 is a hollow rectangular body formed in a substantially inverted trapezoidal shape, stores the water supplied from the upper water supply channel FR, and supplies the stored water to the waterwheel 20 disposed downward from the lower end.

[0020] A partition plate M is erected from the installation floor FL below the water storage tank 10, and the lower end of the water storage tank 10 is divided into a right water supply part 12R and a left water supply part 12L in the drawing.

[0021] At the lower end of the right water supply section 12R, a right water supply amount adjustment plate 30R (water amount adjustment plate 30) for adjusting the water supply amount to the right waterwheel 20R (waterwheel 20) is arranged. On the other hand, at the lower end of the left water supply section 12L, a left water supply amount adjustment plate 30L (water amount adjustment plate 30) for adjusting the water supply amount to the left waterwheel 20L (waterwheel 20) is arranged.

[0022] As described above, the waterwheel 20 includes a right waterwheel 20R arranged below the right water supply section 12R and a left waterwheel 20L arranged below the left water supply section 12L. Here, a waterwheel 20 having a known structure can be preferably used, and its configuration is not particularly limited.

[0023] Thus, the water supply from the right water supply section 12R is supplied to the right waterwheel 20R arranged below the right water supply section 12R, and the water supply from the left water supply section 12L is supplied to the left waterwheel 20L arranged below the left water supply section 12L, and the generators connected to each are driven to generate electricity. After the water supplied to the waterwheel 20 drives the waterwheel 20, it is drained into a river or a water channel through a drainage channel (not shown) arranged on the facility floor FL.

[0024] In this way, in the present embodiment, since the water storage tank 10 is formed in a substantially inverted trapezoidal shape, power generation can be performed even with a small amount of stored water. Moreover, since the water supply section 12 is divided into left and right, two waterwheels 20 can be driven by one water storage tank 10, and an increase in the power generation amount can be achieved.

[0025] In addition, since the water supply amount adjustment plate 30 is arranged, the amount of water supplied to the waterwheel 20 can be adjusted, and thereby the power generation amount can also be adjusted. Moreover, the left and right water supply amounts can be individually adjusted by the left and right water supply amount adjustment plates 30R and 30L, and individual adjustment of the power generation amount can also be achieved.

Example

[0026] Fig. 2 schematically shows a system S1 according to Embodiment 1 of the present invention.

[0027] Embodiment 1 is considered to be a more specific embodiment of Embodiment 1.

[0028] In other words, system S1 comprises a water storage tank 10, a water turbine 20, a water supply adjustment plate 30 that is movable back and forth to adjust the amount of water supplied to the water turbine 20, and a generator (not shown) connected to the water turbine 20 as its main components, and is further provided with a water storage tank support C1 for supporting the water storage tank 10, a water supply adjustment plate support C2, and a water turbine support C3.

[0029] The water tank support C1 supports the inclined side surface of the water tank 10 via a support means (not shown), and one C1 is installed on each side of the water tank 10. The water tank support C1 is, for example, made of a square pipe and erected on the facility floor level (FL).

[0030] The water supply adjustment plate support C2 includes an upper support mechanism C21 that slidably supports the water supply adjustment plate 30, a gate-type support mechanism C22 that supports the upper support mechanism C21, and a central plate CM. This central plate CM also functions as a partition plate M.

[0031] The upper support mechanism C21 is a rod-shaped member provided in the width direction of the water storage tank 10, and has, for example, an adjustment plate slide support portion on its side that slidably holds the water supply adjustment plate 30, and is arranged on both sides of the water supply adjustment plate 30.

[0032] A pair of gantry-type support mechanisms C22 are erected on the facility floor FL at each side of the water storage tank 10.

[0033] The central plate CM has a width that extends from one upper support mechanism C21 to the other upper support mechanism C21, and as mentioned above, it also functions as a partition plate M.

[0034] The turbine support C3 is a member that spans the gantry-type support mechanisms C22 on both sides, and has a bearing (not clearly shown) at the point where the axle of the turbine 20 passes through it, and a generator (not shown) is connected to one end of the axle. It is preferable that the generators connected to each turbine 20 are arranged on the same side.

[0035] Thus, according to this embodiment, the system S1 of Embodiment 1 can be understood more concretely.

[0036] Embodiment 2 Figure 3 shows a schematic diagram of a hydroelectric power generation system (hereinafter simply referred to as "the system") S2(S) according to Embodiment 2 of the present invention.

[0037] As shown in Figure 3, system S2 comprises a water storage tank 40, a water supply pipe 42 disposed at the lower end of the water storage tank 40, a flow control valve 44 interposed in the water supply pipe 42, a water turbine 50 driven by the water supply from the water supply pipe 42, and a generator (not shown) connected to the water turbine 50 as its main components.

[0038] The water storage tank 40 is a hollow rectangular body formed in a roughly inverted trapezoidal shape, and has water supply pipes 42, namely the right water supply pipe 42R and the left water supply pipe 42L, located at the lower ends on both sides. The water supply tank stores the flowing water supplied from the upper water channel FR, and the stored water is supplied from the water supply pipes 42 at the lower ends on both sides, namely the right water supply pipe 42R and the left water supply pipe 42L, to the turbines 50, namely the right turbine 50R and the left turbine 50L, which are located below the tank. The amount of water supplied from the water supply pipes 42 to the turbines 50 is adjusted by a flow control valve 44, thereby adjusting the amount of power generated by the generator.

[0039] Here, the flow control valve 44 may be manually operated or electrically operated. If it is manually operated, the operating handle may be located inside the building where system S2 is housed or outside the building.

[0040] The water turbine 50 can preferably be of a known structure, similar to Embodiment 1, and there are no particular limitations on its configuration.

[0041] Thus, in this embodiment, the water supply amount is adjusted by the flow control valve 44, which simplifies the configuration compared to Embodiment 1 and allows for more precise adjustment of the power generation amount compared to Embodiment 1.

[0042] However, the water supplied to the water turbine 50 is drained into a river or irrigation channel through a drainage channel (not shown) installed on the facility floor FL after driving the water turbine 50. [Examples]

[0043] Figure 4 shows a schematic diagram of system S2 according to Embodiment 2 of the present invention.

[0044] Example 2 is a more detailed embodiment of Embodiment 2.

[0045] In other words, system S2 is comprised of a water storage tank 40, water supply pipes 42 disposed at the lower end of the water storage tank 40, namely the right water supply pipe 42R and the left water supply pipe 42L, flow control valves 44 interposed in each of the right water supply pipes 42R and the left water supply pipe 42L, water turbines 50 driven by the water supplied from the water supply pipes 42, namely the right water supply pipe 42R and the left water supply pipe 42L, namely the right water turbine 50R and the left water turbine 50L, and a generator (not shown) connected to the water turbines 50 as its main components, and is further comprised of a water storage tank support C6 and a water turbine support C7 that support the water storage tank 40.

[0046] The water tank support C6 supports the inclined side of the water tank 10 via support means (not shown), and one C6 is installed on each side of the water tank 10. The water tank support C6 is, for example, made of a square pipe and erected from the facility floor level (FL).

[0047] The turbine support C7 is a support member whose ends are joined to the water tank support C6 via appropriate means, and has a bearing (not clearly shown) at the point where the axle of the turbine 50 passes through, and a generator (not shown) is connected to one end of the axle. It is preferable that the generators connected to each turbine 50 are arranged on the same side.

[0048] Thus, this embodiment allows for a more concrete understanding of the system S2 of Embodiment 2. [Industrial applicability]

[0049] This test case is not applicable to the hydropower and electricity industry. [Explanation of symbols]

[0050] S,S1,S2 Hydraulic Electric Power System FL Facility Bed FR water supply line M cutting board C1 Water tank support C2 Water Supply Adjustment Plate Support C21 Upper Support Agency C22 portal support mechanism CM central board C3 Waterwheel Support C6 Water Tank Support C7 Waterwheel Support 10. Water storage tank 12. Water Supply Department 12R Right side water supply unit 12L Left side water supply section 20 waterwheels 20R Right-hand waterwheel 20L Left-side waterwheel 30 Water supply adjustment plate 30R Right side water supply adjustment plate 30L Left side water supply adjustment plate 40 Water storage tank 42 Water supply pipe 42R Right side water supply pipe 42L Left side water supply pipe 44 Flow adjustment part 50 waterwheels 50R Right-side waterwheel 50L Left-side waterwheel

Claims

1. A hydroelectric power generation system comprising a water tank, a water turbine driven by water supplied from the water tank, and a generator connected to the drive shaft of the water turbine, The aforementioned water storage tank is a hollow rectangular body with an inverted trapezoidal shape and has a water supply section at its lower end. A hydroelectric power generation system characterized by the following features.

2. The hydroelectric power generation system according to claim 1, characterized in that the water turbines are arranged below one side of the water storage tank and below the other side, respectively.

3. The hydroelectric power generation system according to claim 2, characterized in that each generator is arranged on the same side.

4. The hydroelectric power generation system according to claim 1, characterized in that the water supply section has a water flow adjustment plate that can slide to adjust the amount of water supplied.

5. The hydroelectric power generation system according to claim 1, characterized in that the water supply section has a water supply pipe.

6. The hydroelectric power generation system according to claim 5, characterized in that the water supply pipe has a flow control valve.

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