Water circulation power generation system

Abstract

The utility model relates to the technical field of natural energy power generation, and provides a water circulation power generation system which comprises a water circulation device, and the water circulation device comprises a buffer water storage tank, a low-level water tank and a high-level water tank which are sequentially communicated. An impeller is arranged above the buffer water storage tank and connected with a primary generator, a water collecting cover is arranged on the outer side of the impeller, and a secondary generator is arranged at the bottom of the water collecting cover; a hydraulic ram pump and a water pump are arranged in the low-level water tank, a water inlet of the hydraulic ram pump is communicated with the buffer water storage tank, and a water outlet of the hydraulic ram pump is connected with the high-level water tank through a water supplementing system; a water inlet of the water pump is connected with the low-level pool, and a water outlet of the water pump is connected with the high-level pool through the water supply system; the high-level water tank is provided with a water outlet pipe pointing to the impeller; compared with the prior art, the hydraulic ram and the water supply pump can independently provide continuous water flow for the high-level water tank, even if any one of the hydraulic ram and the water pump breaks down, the rest water supply equipment can continue to supply water for the high-level water tank, it is guaranteed that the impeller can continue to rotate, and continuous power generation operation is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural energy power generation technical field especially relates to a water circulation power generation system. BACKGROUND

[0002] Water energy power generation device technology is relatively mature, mainly utilizes impeller and generator to convert the mechanical energy of water flow into electric energy, and supplies power for life production etc., due to the high dependency of the power generation device on water flow, and the water flow needs to be continuous to generate electricity, and there is a dry season in nature, and the water flow in the dry season may not support the normal power generation of the power generation device, so the device is difficult to be applied on a large scale.

[0003] The existing Chinese utility model patent CN202323169772.1 discloses a water circulation power generation device, which comprises a power generation mechanism and a water circulation mechanism, the water circulation mechanism comprises a backflow pool, an energy supply pool, a water supply pool, a primary energy storage pool and a secondary energy storage pool, the water flow in the secondary energy storage pool relies on the gravity potential energy to impact the impeller to rotate, the impeller drives the total generator to generate electricity, the water flow losing potential energy is gathered into the backflow pool, and then the water flow is sent into the energy supply pool through the water pipe, the water flow is pumped into the primary energy storage pool by the water pump, the water flow in the primary energy storage pool relies on the potential energy generated by the drop to impact the water hammer pump to pump the water flow into the secondary energy storage pool, and the water flow is repeatedly used to impact the impeller to generate electricity, thereby achieving the purpose of circulating work.

[0004] Although the prior art can reduce the influence of the natural environment on power generation, the water circulation mechanism is relatively complex, and the water flow circulates through many devices, and any fault in any link will cause the whole water circulation mechanism to fail to operate normally; since the water flow needs to flow through multiple groups of water pools during water circulation, in order to ensure the smoothness of the water flow, driving pumps need to be arranged in these water pools for pumping water, and such a design will increase the energy consumption of the water circulation system, and with the increase of the number of water pools, the number of pipelines connecting the water pools also increases, which will affect the water supply efficiency. Therefore, a more simple and reliable and efficient water energy power generation device is needed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a water circulation power generation system, and aims at solving the problems in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides a water circulation power generation system, which comprises a water circulation device, and the water circulation device comprises a buffer water storage pool, a low-position water pool and a high-position water pool which are connected in sequence.

[0007] A impeller is arranged above the buffer water storage pool, the impeller is connected with a primary generator, a water collecting cover is arranged outside the impeller, and a secondary generator is arranged at the bottom of the water collecting cover.

[0008] The low-position water pool is provided with a water hammer pump and a water pump, the water inlet of the water hammer pump is communicated with the buffer water pool, and the water outlet of the water hammer pump is connected with the high-position water pool through a water supplement system; the water inlet of the water pump is connected with the low-position water pool, and the water outlet of the water pump is connected with the high-position water pool through a water supply system.

[0009] The high-position water pool is provided with a water outlet pipe which is directed to the impeller.

[0010] Further, the water supply system comprises a water supply pipe which is independently connected with the high-position water pool, and the water supplement system comprises a water supplement pipe which is independently connected with the high-position water pool, and a one-way valve is arranged on the water supplement pipe.

[0011] Further, the water supply system comprises a water supply pipe which is connected with the middle section of the water supplement pipe, and the water supplement system comprises a water supplement pipe which is connected with the high-position water pool, and a one-way valve is arranged on the water supplement pipe at the connection position of the water supply pipe.

[0012] Further, the ratio of the diameters of the water supplement pipe and the water supply pipe is (6-8):3, and the ratio of the water supply amounts of the water hammer pump and the water pump per unit time is (0.75-1.5):2.

[0013] Further, the buffer water pool is arranged above the low-position water pool, the distance between the buffer water pool and the low-position water pool is H1, 3m≤H1≤5m; the high-position water pool is arranged above the buffer water pool and the low-position water pool, the distance between the high-position water pool and the impeller is H2, the distance between the high-position water pool and the low-position water pool is H3, 15m≤H2≤22m, 32m≤H3≤38m.

[0014] Further, the water outlet pipe extends into the water collecting cover, a pressure boosting nozzle is arranged at the water outlet of the water outlet pipe, and the pressure boosting nozzle is directed to the impeller.

[0015] Further, the primary generator is connected with a power grid adjusting assembly, and the power grid adjusting assembly is used for adjusting the current of the primary generator and introducing the current into the power grid.

[0016] Compared with the prior art, the water hammer pump and the water supply pump can independently provide continuous water flow for the high-position water pool, even if any one of the water hammer pump or the water pump fails, the remaining water supply equipment can continue to supply water for the high-position water pool, so that the impeller can continue to rotate, and continuous power generation operation is facilitated; meanwhile, since the pipeline layout is reduced, the energy consumption of water flow in the pipeline is also reduced, and thus the water flow efficiency in the water circulation device is higher. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the utility model;

[0018] Figure 2 is Figure 1 a partial enlarged view of part A in Fig. 1;

[0019] Figure 3 is a schematic view of another embodiment of the utility model;

[0020] Figure 4 is Figure 3 is a partial enlarged view of part B in the figure;

[0021] Figure 5 is a structure view of the impeller part in the utility model;

[0022] Figure 6 is a schematic view of the power grid regulating assembly in the utility model.

[0023] Explanation of reference signs:

[0024] Among them;

[0025] 1, buffer water storage pool;2, low water pool;3, high water pool;4, impeller;5, primary generator;6, water collecting cover;7, secondary generator;8, water hammer pump;9, water pump;10, water replenishing pipe;11, water supply pipe;12, power grid regulating assembly;13, pressure boosting nozzle;14, water outlet pipe;15, check valve. Specific implementation

[0026] The utility model will be explained in detail in combination with specific embodiments.

[0027] In the utility model, except for explicit stipulation and limitation, when the terms such as " set in " " connect " " connect " appear, these terms should be understood in a broad sense, for example, can be fixedly connected, detachably connected or integrally connected;It can be directly connected or connected through one or more intermediate media. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances. For the direction words appearing in the utility model, in order to better explain the characteristics of the features and the relationship between the features, it should be understood that when the display direction of the utility model changes, the characteristics of the features and the relationship between the features also change correspondingly, therefore the direction word does not constitute the absolute limitation of the characteristics of the features and the relationship between the features in space, and only plays a relative limiting role.

[0028] As Figures 1 to 6 shown, the utility model provides a kind of water circulation power generation system, including water circulation device, water circulation device includes the buffer water storage pool 1 of sequentially intercommunication arrangement, high water pool 3 and low water pool 2;

[0029] Buffer water storage pool 1 upper portion is provided with impeller 4, and impeller 4 is connected with primary generator 5, and the outside of impeller 4 is provided with water collecting cover 6, and the bottom of water collecting cover 6 is provided with secondary generator 7;

[0030] The low-position water pool 2 is provided with a water hammer pump 8 and a water pump 9, the water inlet of the water hammer pump 8 is communicated with the buffer water pool 1, and the water outlet of the water hammer pump 8 is connected with the high-position water pool 3 through a water supplement system; the water inlet of the water pump 9 is connected with the low-position water pool 2, and the water outlet of the water pump 9 is connected with the high-position water pool 3 through a water supply system.

[0031] The high-position water pool 3 is provided with a water outlet pipe 14 which is directed to the impeller 4.

[0032] Through the above design scheme, the water in the high-position water pool 3 flows to the impeller 4 through the water outlet pipe 14, and the water flow losing power after impacting the impeller 4 is first gathered in the water collecting cover 6 and then flows into the buffer water pool 1 under the action of gravity through the secondary generator 7; the secondary generator 7 can also generate electricity by means of the water flow, although the water flow loses most of the kinetic energy after impacting the impeller 4, but the water flow is still in a flowing state, and the flowing water flow can drive the secondary generator 7 to generate electricity, even if the current generated by the secondary generator 7 is weak, but it can also power the water pump 9. The water hammer pump 8 will have part of the tail water flow into the low-position water pool 2 while pumping the water flow, and the water flow flowing into the low-position water pool 2 is pumped to the high-position water pool 3 by the water pump 9, so as to ensure that the water outlet quantity of the high-position water pool 3 is flat with the water inlet quantity; the water pump 9 and the water hammer pump 8 can independently supply water to the high-position water pool 3, whether the water hammer pump 8 or the water pump 9 fails, the remaining equipment can independently supply water to the high-position water pool 3, even if the water supply quantity cannot meet the demand quantity of the high-position water pool 3, the remaining water supply device can continue to supplement the water flow for the high-position water pool 3, prolong the working time of the high-position water pool 3, avoid the shutdown of the water circulation system during maintenance, and cannot impact the impeller 4 to make the primary generator 5 generate electricity.

[0033] The water collecting cover 6 outside the impeller 4 can collect the water flow splashing after impacting the impeller 4, so as to avoid that the water flow splashing causes the water flow in the water circulation system to rapidly reduce.

[0034] In the embodiment, the water supply system comprises a water supply pipe 11 independently connected with the high-position water pool 3, and the water supplement system comprises a water supplement pipe 10 independently connected with the high-position water pool 3, and the water supplement pipe 10 is provided with a one-way valve 15.

[0035] Through the above design scheme, the independent water supply pipe 11 and the water supplement pipe 10 can avoid mutual interference between the water hammer pump 8 and the water pump 9, and the one-way valve 15 on the water supplement pipe 10 can avoid backflow of the water flow in the water supplement pipe 10.

[0036] The utility model discloses still provided another implementation, water supply system includes connecting water supplement pipe 10 middle section's water supply pipe 11, water supplement system includes the water supplement pipe 10 of end connection high-position water pool 3, and water supplement pipe 10 is equipped with one-way valve 15 at water supply pipe 11 connection place.

[0037] Through the above design scheme, the mutually connected water supply pipe 11 and the water supplement pipe 10 can save the amount of pipeline, save the cost required for laying; the one-way valve 15 on the water supplement pipe 10 can limit the water flow direction, avoid the water flow pumped by the water hammer pump 8 impacting the water pump 9.

[0038] In the embodiment, the ratio of the pipe diameter between the water supplement pipe 10 and the water supply pipe 11 is (6-8):3, and the ratio of the water supply amount per unit time of the water hammer pump 8 and the water pump 9 is (0.75-1.5):2. The working efficiency of the water hammer pump 8 causes the water supply amount to be limited, and it is impossible to pump all the water flow delivered from the buffer storage tank 1 into the high-level tank 3, while the water pump 9 can deliver the tail water of the water hammer pump 8 into the high-level tank 3, so as to ensure that the water inflow and the water outflow of the high-level tank 3 are balanced.

[0039] In the embodiment, the buffer storage tank 1 is above the low-level tank 2, the distance between the buffer storage tank 1 and the low-level tank 2 is H1, 3m≤H1≤5m; the high-level tank 3 is above the buffer storage tank 1 and the low-level tank 2, the distance between the high-level tank 3 and the impeller 4 is H2, the distance between the high-level tank 3 and the low-level tank 2 is H3, 15m≤H2≤22m, 32m≤H3≤38m.

[0040] Through the above design scheme, the lift of the water hammer pump 8 and the water pump 9 is limited, in order to ensure that the sum of the water supply amounts of the water hammer pump 8 and the water pump 9 is balanced with the water outflow of the high-level tank 3, the distance between the high-level tank 3 and the low-level tank 2 cannot be too large, so as to avoid exceeding the lift of the water hammer pump 8 and the water pump 9, and at the same time, the distance between the high-level tank 3 and the low-level tank 2 cannot be too small, so as to avoid that the kinetic energy of the water flow output from the high-level tank 3 is too small, the rotation speed of the impeller 4 is too slow, and the power generation efficiency is affected, the distance of 32-38m can ensure that the water hammer pump 8 and the water pump 9 can pump the water flow into the high-level tank 3, and at the same time, can ensure that the water flow output from the high-level tank 3 has sufficient kinetic energy to improve the power generation amount; the water flow output from the buffer storage tank 1 needs to rely on the height difference to flow, and the water hammer pump 8 can work only by the water flow impacting the water hammer pump 8, and the height of 3-5m can give the water flow in the buffer storage tank 1 certain kinetic energy, and can avoid that the distance between the high-level tank 3 and the buffer storage tank 1 is too small to affect the rotation speed of the impeller 4.

[0041] In the embodiment, the water outlet pipe 14 extends into the water collecting cover 6, the water outlet pipe 14 is provided with a booster nozzle 13 at the water outlet, and the booster nozzle 13 is aligned with the impeller 4; the water outlet pipe 14 extending into the water collecting cover 6 can avoid the water flow splashing after impacting the impeller 4, and the booster nozzle 13 of the water outlet pipe 14 can increase the impact force of the water flow, so as to make the impeller 4 obtain higher rotation speed by improving the flow rate of the water flow, and then make the primary generator 5 obtain more power generation amount.

[0042] In the embodiment, the primary generator 5 is connected with the power grid regulating assembly 12, and the power grid regulating assembly 12 is used for adjusting the current of the primary generator 5 and introducing the power grid. The power grid regulating assembly 12 is provided with a function control module, a controller, a machine side filter, a motor driving unit, a PWM rectification unit and the like. Since the various devices in the power grid regulating assembly 12 and the connection relationship between the different devices belong to the prior art and are not the improvement points of the utility model, they are not described in detail in the utility model.

[0043] Compared with the prior art, the water hammer pump 8 and the water supply pump 9 can independently provide continuous water flow for the high-level water pool 3, even if any one of the water hammer pump 8 or the water pump 9 fails, the remaining water supply equipment can continue to supply water for the high-level water pool 3, ensure that the impeller 4 can continue to rotate, facilitate continuous power generation operation; at the same time, since the pipeline layout is reduced, the energy consumption of the water flow in the pipeline will also be reduced, thereby the water flow efficiency in the water circulation device is higher.

[0044] In the case of no conflict, the above-mentioned embodiments and features in the embodiments can 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 utility model, and are not limited to the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the utility model.

Claims

1. A water cycle power generation system comprising a water cycle device, characterized by: The water circulation device comprises a buffer water storage pool (1), a low water pool (2) and a high water pool (3) which are sequentially connected. The buffer water storage pool (1) is provided with an impeller (4) at the top, the impeller (4) is connected with a primary generator (5), the outer side of the impeller (4) is provided with a water collecting cover (6), and the bottom of the water collecting cover (6) is provided with a secondary generator (7). The low water pool (2) is provided with a water hammer pump (8) and a water pump (9), the water inlet of the water hammer pump (8) is connected with the buffer water storage pool (1), the water outlet of the water hammer pump (8) is connected with the high water pool (3) through a water supplement system, the water inlet of the water pump (9) is connected with the low water pool (2), and the water outlet of the water pump (9) is connected with the high water pool (3) through a water supply system. The high water pool (3) is provided with a water outlet pipe (14) which is directed to the impeller (4).

2. A water cycle power generation system according to claim 1, wherein: The water supply system comprises a water supply pipe (11) which is independently connected with the high water pool (3), and the water supplement system comprises a water supplement pipe (10) which is independently connected with the high water pool (3), and the water supplement pipe (10) is provided with a one-way valve (15).

3. A water cycle power generation system according to claim 1, wherein: The water supply system comprises a water supply pipe (11) which is connected with the middle section of the water supplement pipe (10), and the water supplement system comprises a water supplement pipe (10) which is connected with the high water pool (3) at the end, and the water supplement pipe (10) is provided with a one-way valve (15) at the connection position of the water supply pipe (11).

4. A water cycle power generation system according to claim 2 or 3, wherein: The ratio of the pipe diameters between the water supplement pipe (10) and the water supply pipe (11) is (6-8):3, and the ratio of the water supply amounts per unit time of the water hammer pump (8) and the water pump (9) is (0.75-1.5):

2.

5. A water cycle power generation system according to claim 1, wherein: The buffer water storage pool (1) is located below the low water pool (2) and above the low water pool (2), the distance between the buffer water storage pool (1) and the low water pool (2) is H1, 3m≤H1≤5m, the high water pool (3) is located above the buffer water storage pool (1) and the low water pool (2), the distance between the high water pool (3) and the impeller (4) is H2, the distance between the high water pool (3) and the low water pool (2) is H3, 15m≤H2≤22m, 32m≤H3≤38m.

6. A water cycle power generation system according to claim 1, wherein: The water outlet pipe (14) extends into the water collecting cover (6), and the water outlet of the water outlet pipe (14) is aligned with the impeller (4).

7. A water cycle power generation system according to claim 1, wherein: The primary generator (5) is connected with a power grid adjusting assembly (12), and the power grid adjusting assembly (12) is used for adjusting the current of the primary generator (5) and introducing the current into a power grid.

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