Low-energy-consumption water circulation power generation device

Abstract

The invention relates to the technical field of hydroelectric generation, and provides a low-energy-consumption water circulation power generation device which comprises a water circulation power generation device body, the water circulation power generation device body comprises a water circulation assembly and a power generation assembly, the water circulation assembly is used for making water flow circularly flow, and the power generation assembly is used for generating power through the circulating water flow; the water circulation assembly comprises an energy storage water tank, a high-level water tank and a plurality of groups of water return parts; each group of water return part comprises a water turbine pump, a tail water tank, a hydraulic ram, a high-pressure tank and a water lifting tank; water flow flowing out of the high-position water tank can completely flow back to the high-position water tank through acting of the water turbine pump, the water lifting tank and the water suction pump, and water circulation operation is completed; due to the fact that only the water suction pump is needed for water lifting, external energy is not needed for driving, energy consumption needed by water circulation is extremely low, the water flow generator can generate electricity in the water circulation process to be used by the water turbine pump, and energy consumption is further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of hydropower generation, and in particular to a low-energy-consuming water circulation power generation device. Background Art

[0002] Hydropower generation technology is relatively mature, primarily utilizing impellers and generators to convert the mechanical energy of water flow into electrical energy for daily life and production. However, these devices are highly dependent on water flow and require a continuous flow to generate electricity. However, dry seasons exist in nature, and during these periods, water flow may not be sufficient to support normal power generation. Therefore, large-scale application of these devices is difficult.

[0003] The existing Chinese invention patent CN202323169772.1 discloses a water circulation power generation device, including a power generation mechanism and a water circulation mechanism. The water circulation mechanism includes a reflow tank, an energy supply tank, a water supply tank, a primary energy storage tank and a secondary energy storage tank. The water flow in the secondary energy storage tank relies on the gravitational potential energy to impact the impeller to rotate, and the impeller drives the main generator to generate electricity. The water flow that has lost its potential energy converges into the reflow tank, and then is sent into the energy supply tank through a water pipe. The water flow is pumped to the primary energy storage tank by a water pump. The water flow in the primary energy storage tank relies on the potential energy generated by the head difference to impact the water hammer pump so that it pumps the water flow to the secondary energy storage tank. The water flow is repeatedly used to impact the impeller to generate electricity, thereby achieving the purpose of circulation work.

[0004] When a ram pump delivers water to a high-altitude pool, it cannot achieve 100% efficiency. If you want to pump all the water to the high-altitude pool, you must install an additional water pump to pump the tail water of the ram pump to the high-altitude pool. Since the water pump needs to be driven by the current generated by the water circulation system, if the distance between the high-altitude pool and the water pump is too large, the power of the water pump needs to be increased accordingly, which reduces the overall power output of the water circulation system. Therefore, there is a need for a water circulation power generation device that can reduce internal energy consumption to increase the overall power output. Summary of the Invention

[0005] The purpose of the present invention is to provide a low-energy water circulation power generation device, aiming to solve the problem of high energy consumption of existing water circulation facilities.

[0006] In order to achieve the above-mentioned object, the present invention provides a low-energy water circulation power generation device, including a water circulation power generation device, the water circulation power generation device including a water circulation component and a power generation component, the water circulation component is used to circulate water flow, and the power generation component is used to generate electricity by means of the circulating water flow;

[0007] The water circulation component includes a storage water tank, a high-level water tank and multiple return water parts. Each return water part includes a turbine pump, a tailwater tank, a water hammer pump, a high-pressure tank and a water lifting tank. The energy storage water tank is connected to the turbine pump, and the water outlet end of the turbine pump is connected to the water hammer pump. The turbine pump is provided with a pump pipe, and the pump pipe is connected to the high-level water tank; the water hammer pump is installed in the tailwater tank, and an air chamber is provided in the water hammer pump, and the air chamber is connected to the water lifting tank through the high-pressure tank; the tailwater tank is connected to the water lifting tank through the tailwater pipe, and the water lifting tank is provided with a water lifting pipe, and the water lifting pipe is connected to the high-level water tank. The high-level water tank is above the energy storage water tank, and the high-level water tank is provided with a water outlet pipe. The end of the water outlet pipe is connected to the power generation component, and the power generation component is located directly above the energy storage water tank.

[0008] Both the tailwater pipe and the water lifting pipe are equipped with one-way valves.

[0009] Furthermore, the height of the high-level water tank is higher than that of the energy storage tank, the height of the energy storage tank is higher than that of the turbine pump, the height of the turbine pump is higher than that of the tailwater tank, and the height of the tailwater tank is higher than that of the high-pressure tank.

[0010] Furthermore, the height difference between the high-level water tank and the energy storage tank is 15-20m, the height difference between the energy storage tank and the turbine pump is 3-5m, the height difference between the turbine pump and the tailwater tank is 3-5m, and the height difference between the tailwater tank and the high-pressure tank is 0.5-2m.

[0011] Furthermore, a terminal water pipe is provided on the water lifting tank, and a one-way valve and a pressure-stabilizing valve are provided on the terminal water pipe; the terminal water pipe is connected to a terminal water pool, the height of the terminal water pool is lower than the height of the water lifting tank, and the terminal water pool is connected to a water pump, which is used to pump water in the terminal water pool to the high-level water pool.

[0012] Furthermore, a turbine water pool is provided at the water turbine pump, and the turbine water pool is connected to the energy storage water pool.

[0013] Furthermore, the energy storage tank is connected to the water turbine pump through a drainage pipe, and a water flow generator is provided near the drainage pipe to the energy storage tank.

[0014] Furthermore, a water flow generator is provided on the outlet pipe near the high-level water tank.

[0015] Furthermore, the power generation component includes a control grid, a main generator, an impeller and a secondary generator. The impeller is arranged at the bottom of the drain pipe and directly above the energy storage tank. The secondary generator is arranged at the bottom of the impeller; the main generator is connected to the main shaft of the impeller, and the control grid is electrically connected to the main generator and the secondary generator respectively.

[0016] The low-energy water circulation power generation device provided by the present invention, compared with the existing technology, is a low-energy water circulation power generation device. The water flow falling from the high-level water tank impacts the main generator to generate electricity, and then falls into the energy storage tank; the water turbine pump pumps part of the water flow in the energy storage tank to the high-level water tank, and the remaining water flow impacts the water hammer pump to cause the air chamber to contract or expand. The air chamber is connected to the water lifting tank through the high-pressure tank. The contracted or expanded air chamber can change the air pressure inside the water lifting tank, so that the water flow is sent to the high-level water tank by the air pressure pump, and finally the remaining tail water enters the terminal water tank, and the water flow in the terminal water tank is pumped to the high-level water tank; through the work of the water turbine pump, the water lifting tank and the water pump, the water flow out of the high-level water tank will all flow back to the high-level water tank, completing the water circulation operation; since water lifting only requires the water pump to be driven by external energy, the energy consumption required for water circulation is extremely small, and the water flow generator can generate electricity for the water turbine pump during the water circulation process, further reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural view of the present invention;

[0018] Figure 2 This is a structural view of the water return portion of the present invention;

[0019] Figure 3 This is a structural view of the energy storage tank in the present invention;

[0020] Figure 4 This is a structural view of the terminal water tank in the present invention;

[0021] Figure 5 It is a structural view of the turbine pool in the present invention.

[0022] Description of reference numerals:

[0023] in;

[0024] 1. Power generation component; 10. Impeller; 11. Main generator; 12. Secondary generator; 13. Control grid; 2. Energy storage tank; 3. Return water unit; 30. Water turbine pump; 31. Water hammer pump; 32. Tailwater tank; 33. Air chamber; 34. High-pressure tank; 35. Water lifting tank; 36. Turbine tank; 4. High-level water tank; 5. Water flow generator; 6. One-way valve; 7. Outlet pipe; 70. Pump pipe; 71. Tailwater pipe; 72. Drain pipe; 73. Water lifting pipe; 8. Terminal water pipe; 80. Terminal tank; 81. Suction pump. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to specific embodiments.

[0026] In the present invention, unless otherwise expressly specified and limited, when terms such as "set on", "connected", and "connected" appear, these terms should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be directly connected or connected through one or more intermediate media. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The directional words that appear in the present invention are to better illustrate the characteristics of the features and the relationship between the features. It should be understood that when the placement direction of the present invention changes, the characteristics of the features and the direction of the relationship between the features also change accordingly. Therefore, the directional words do not constitute an absolute limitation on the characteristics of the features and the relationship between the features in space, but only play a relative limitation role.

[0027] like Figures 1 to 5 As shown, a low-energy water circulation power generation device includes a water circulation power generation device, which includes a water circulation component and a power generation component 1. The water circulation component is used to circulate water flow, and the power generation component 1 is used to generate electricity with the help of the circulating water flow;

[0028] The water circulation assembly includes a storage water tank 2, a high-level water tank 4 and multiple groups of return water parts 3. Each group of return water parts 3 includes a water turbine pump 30, a tailwater tank 32, a water hammer pump 31, a high-pressure tank 34 and a water lifting tank 35. The storage water tank 2 is connected to the water turbine pump 30, and the water outlet end of the water turbine pump 30 is connected to the water hammer pump 31. The water turbine pump 30 is provided with a pump pipe 70, and the pump pipe 70 is connected to the high-level water tank 4; the water hammer pump 31 is installed in the tailwater tank 32, and the water The hammer pump 31 is provided with an air chamber 33, which is connected to a water lifting tank 35 via a high-pressure tank 34; the tailwater tank 32 is connected to the water lifting tank 35 via a tailwater pipe 71, and the water lifting tank 35 is provided with a water lifting pipe 73, which is connected to a high-level water tank 4. The high-level water tank 4 is located above the energy storage tank 2. The high-level water tank 4 is provided with a water outlet pipe 7, the end of which is connected to the power generation component 1, which is located directly above the energy storage tank 2.

[0029] Both the tailwater pipe 71 and the water lifting pipe 73 are provided with a one-way valve 6 .

[0030] In this embodiment, the height of the high-level water tank 4 is higher than that of the energy storage tank 2, and the height difference between the high-level water tank 4 and the energy storage tank 2 is 15-20m; the height of the energy storage tank 2 is higher than the height of the water turbine pump 30, and the height difference between the energy storage tank 2 and the water turbine pump 30 is 3-5m; the height of the water turbine pump 30 is higher than the height of the tailwater tank 32, and the height difference between the water turbine pump 30 and the tailwater tank 32 is 3-5m; the height of the tailwater tank 32 is higher than the height of the water lifting tank 35, and the height difference between the tailwater tank 32 and the water lifting tank 35 is 0.5-2m.

[0031] Through the above design scheme, multiple groups of return water parts 3 can achieve multi-stage tail water lifting. The water flow in the high-level water tank 4 can automatically flow downward under the action of gravity. The flowing water flow impacts the power generation component 1 to generate electricity. The water flow that has been generated loses kinetic energy and falls into the energy storage tank 2. The water flow in the energy storage tank 2 flows to the water turbine pump 30 under the action of gravity. The water turbine pump 30 used for pumping water is usually provided with at least two stages of impellers. The first-stage water wheel in the water turbine pump 30 will be driven by the water flow to rotate, and the rotating first-stage water wheel drives the second-stage water wheel to rotate. The second-stage water wheel will pump part of the water flow into the high-level water tank 4. The remaining water flow continues to flow downward under the action of gravity to impact the water hammer pump 31. The air chamber 33 in the water hammer pump 31 continuously contracts or relaxes under the action of the water hammer effect. The tail water flowing out of the water hammer pump 31 will first flow into the tail water tank 32, and then flow into the water lifting tank 35 from the tail water tank 32.

[0032] Since the water wheel pump 30 provided with a multi-stage water wheel belongs to the prior art and is not the improvement point of the present invention, it is not described in detail in this embodiment.

[0033] Since the air chamber 33 is connected to the water lifting tank 35 through the high-pressure tank 34, when the air chamber 33 expands under the impact of the water flow, the air pressure in the water lifting tank 35 decreases, and the water lifting tank 35 actively draws water to fill the gap. Under the action of the one-way valve 6, the water lifting tank 35 can only draw water from the tailwater pool 32 to fill the deficit; when the air chamber 33 contracts under the impact of the water flow, the air pressure in the water lifting tank 35 increases, and the water flow originally sucked in is output outward under the action of the air pressure. Under the action of the one-way valve 6, the water flow in the water lifting tank 35 can only be output from the water lifting pipe 73, and flows to the high-level water pool 4 through the guidance of the water lifting pipe 73.

[0034] In this embodiment, a terminal water pipe 8 is provided on the water lifting tank 35, and a one-way valve 6 and a pressure-stabilizing valve are provided on the terminal water pipe 8; the terminal water pipe 8 is connected to a terminal water pool 80, and the height of the terminal water pool 80 is lower than the height of the water lifting tank 35. The terminal water pool 80 is connected to a water pump 81, and the water pump 81 is used to pump the water in the terminal water pool 80 to the high-level water pool 4.

[0035] Since the water lifting tank 35 cannot completely deliver the water flow to the high-level water tank 4, when the air pressure inside the water lifting tank 35 increases, most of the water flow will flow to the high-level water tank 4 first under the action of the pressure-stabilizing valve, while a small amount of water flow will flow to the terminal water tank 80 through the pressure-stabilizing valve; when the air pressure in the water lifting tank 35 decreases, the water flow cannot enter the high-level water tank 4, but the water flow can still flow to the terminal water tank 80, and the tail water in the terminal water tank 80 is pumped into the high-level water tank 4 by the water pump 81; when the air pressure in the water lifting tank 35 is lower than the equilibrium point, the water lifting tank 35 switches from the pumping state to the absorbing state, and the one-way valve 6 on the terminal water pipe 8 can prevent the water flow from the terminal water tank 80 from flowing back to the water lifting tank 35.

[0036] In this embodiment, a turbine water tank 36 is provided at the water wheel pump 30 , and the turbine water tank 36 is connected to the energy storage tank 2 .

[0037] Through the above design, the turbine pool 36 can convert the horizontal flow of water into a spiral flow. The spiral flow of water will provide additional greater impact force, further increasing the rotation speed of the turbine pump 30.

[0038] In this embodiment, the energy storage tank 2 is connected to the water turbine pump 30 through a drainage pipe 72 , and a water flow generator 5 is provided near the drainage pipe 72 to the energy storage tank 2 .

[0039] In this embodiment, a water flow generator 5 is provided near the high-level water tank 4 on the water outlet pipe 7 .

[0040] Through the above design, the water flow generator 5 can generate electricity driven by the water flow, and the generated current can be directly supplied to the water pump 81, so that the water circulation system can complete the water circulation work without external power supply.

[0041] In this embodiment, the water flow generator 5 is an axial flow generator or a Francis generator.

[0042] In this embodiment, the power generation component 1 includes a control grid 13, a main generator 11, an impeller 10 and a secondary generator 12. The impeller 10 is arranged at the bottom of the drain pipe 72, and the impeller 10 is directly above the energy storage tank 2. The secondary generator 12 is arranged at the bottom of the impeller 10; the main generator 11 is connected to the main shaft of the impeller 10, and the control grid 13 is electrically connected to the main generator 11 and the secondary generator 12 respectively.

[0043] The low-energy water circulation power generation device provided by the present invention, compared with the existing technology, the water flow falling from the high-level water tank 4 impacts the main generator 11 to generate electricity, and then falls into the energy storage tank 2; the water turbine pump 30 pumps part of the water flow in the energy storage tank 2 to the high-level water tank 4, and the remaining water flow impacts the water hammer pump 31 to cause the air chamber 33 to contract or expand. The air chamber 33 is connected to the water lifting tank 35 through the high-pressure tank 34. The contraction or expansion of the air chamber 33 can change the air pressure inside the water lifting tank 35, so that the water flow is pumped to the high-level water tank 4 by the air pressure pump. , and finally the remaining tail water enters the terminal water pool 80, and the water in the terminal water pool 80 is pumped into the high-level water pool 4; through the work of the water turbine pump 30, the water lifting tank 35 and the water pump 81, the water flowing out of the high-level water pool 4 will all flow back into the high-level water pool 4, completing the water circulation operation; since water lifting only requires the water pump 81 and does not require external energy to drive, the energy consumption required for water circulation is extremely small, and the water flow generator 5 can generate electricity for the water turbine pump 30 during the water circulation process, further reducing energy consumption.

[0044] In the absence of conflict, the above embodiments and features therein may be combined with each other.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A low-energy water cycle power generation device, comprising a water cycle power generation device, characterized in that: The water circulation power generation device comprises a water circulation component and a power generation component (1), wherein the water circulation component is used to circulate water, and the power generation component (1) is used to generate electricity by means of the circulating water. The water circulation component comprises an energy storage water tank (2), a high-level water tank (4) and multiple groups of return water parts (3), each group of return water parts (3) comprises a water wheel pump (30), a tailwater tank (32), a water hammer pump (31), a high-pressure tank (34) and a water lifting tank (35), the energy storage water tank (2) is connected to the water wheel pump (30), the water outlet end of the water wheel pump (30) is connected to the water hammer pump (31), the water wheel pump (30) is provided with a pump water pipe (70), and the pump water pipe (70) is connected to the high-level water tank (4); the water hammer pump (31) is installed in the tailwater tank (32), and the water hammer The pump (31) is provided with an air chamber (33), which is connected to a water lifting tank (35) through a high-pressure tank (34); the tailwater tank (32) is connected to the water lifting tank (35) through a tailwater pipe (71); a water lifting pipe (73) is provided on the water lifting tank (35); the water lifting pipe (73) is connected to a high-level water tank (4); the high-level water tank (4) is located above the energy storage tank (2); the high-level water tank (4) is provided with a water outlet pipe (7); the end of the water outlet pipe (7) is connected to a power generation component (1); and the power generation component (1) is located directly above the energy storage tank (2); Both the tailwater pipe (71) and the water lifting pipe (73) are provided with a one-way valve (6).

2. A low-energy water cycle power generation device according to claim 1, characterized in that: The height of the high-level water tank (4) is higher than the height of the energy storage tank (2), the height of the energy storage tank (2) is higher than the height of the water turbine pump (30), the height of the water turbine pump (30) is higher than the height of the tailwater tank (32), and the height of the tailwater tank (32) is higher than the height of the high-pressure tank (34).

3. A low-energy water cycle power generation device according to claim 2, characterized in that: The height difference between the high-level water tank (4) and the energy storage tank (2) is 15-20m, the height difference between the energy storage tank (2) and the water turbine pump (30) is 3-5m, the height difference between the water turbine pump (30) and the tailwater tank (32) is 3-5m, and the height difference between the tailwater tank (32) and the high-pressure tank (34) is 0.5-2m.

4. The low-energy water cycle power generation device according to claim 1, characterized in that: The water lifting tank (35) is provided with a terminal water pipe (8), and the terminal water pipe (8) is provided with a one-way valve (6) and a pressure-stabilizing valve; the terminal water pipe (8) is connected to a terminal water pool (80), the height of the terminal water pool (80) is lower than the height of the water lifting tank (35), and the terminal water pool (80) is connected to a water pump (81), and the water pump (81) is used to pump water in the terminal water pool (80) to the high-level water pool (4).

5. The low-energy water cycle power generation device according to claim 1, characterized in that: A turbine water pool (36) is provided at the water wheel pump (30), and the turbine water pool (36) is connected to the energy storage water pool (2).

6. The low-energy water cycle power generation device according to claim 1, characterized in that: The energy storage water tank (2) is connected to the water wheel pump (30) through a drainage pipe (72), and a water flow generator (5) is provided near the drainage pipe (72) to the energy storage water tank (2).

7. The low-energy water cycle power generation device according to claim 1, characterized in that: A water flow generator (5) is provided on the outlet pipe (7) near the high-level water pool (4).

8. The low-energy water cycle power generation device according to claim 1, characterized in that: The power generation assembly (1) comprises a control grid (13), a main generator (11), an impeller (10) and a secondary generator (12); the impeller (10) is arranged at the bottom of the drainage pipe (72), and the impeller (10) is located directly above the energy storage tank (2); the secondary generator (12) is arranged at the bottom of the impeller (10); the main generator (11) is connected to the main shaft of the impeller (10), and the control grid (13) is electrically connected to the main generator (11) and the secondary generator (12).

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