CN113078738A

CN113078738A - Step water power generation energy-saving energy storage device

Info

Publication number: CN113078738A
Application number: CN202110332856.9A
Authority: CN
Inventors: 陈皓; 王冬; 张尹; 张�成; 陆建勋; 陈波
Original assignee: Huaian Hongze District Water Conservancy Bureau; Huaiyin Institute of Technology
Current assignee: Huaian Hongze District Water Conservancy Bureau; Huaiyin Institute of Technology
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-07-06
Anticipated expiration: 2041-03-29
Also published as: CN113078738B

Abstract

The invention relates to the field of household water-saving systems, and discloses a step water-using power generation energy-saving energy storage device, which comprises at least two water tanks which are communicated through water pipes and are sequentially lowered in installation position, wherein the last water tank is communicated with a water storage tank through a water feeding mechanism; each power generation area in each level of water tank comprises a power generation water wheel, and at least one power generation area is internally provided with a water collection lever; the rotating shaft of each water wheel is connected with the input end of a generator, and the output end of the generator is connected with the input end of a storage battery box; each power generation water wheel is sequentially and rotatably arranged on the drainage inclined plane from top to bottom, and the rotating shaft of each power generation water wheel is arranged in parallel with the drainage inclined plane; and a diversion accelerating plate is further arranged between every two water wheels, the larger end of an included angle between the diversion accelerating plate and the drainage inclined plane faces the water collecting lever, and the smaller end of the included angle faces the lower water wheel. After the domestic sewage is collected in stages, the domestic sewage is generated and used for many times, so that water resources can be effectively utilized, and manpower, financial resources and material resources are saved.

Description

Step water power generation energy-saving energy storage device

Technical Field

The invention relates to the field of household water-saving systems, in particular to a cascade water-used power generation energy-saving and energy-storing device.

Background

With the improvement of the living standard of people and the improvement of living conditions, the living standard of modern urban and rural residents is continuously improved, the living water consumption is increased rapidly, and the water conservation becomes a focus topic nowadays, especially the idea of one water for multiple purposes is not easy to realize. At present, most of water for residents is supplied by secondary pressurization, and particularly, when the population of a house is large, each household consumes a large amount of water every day, and the water for residents is generally used once in the household and then is discharged into a sewer, so that the water cannot be reused. Most of the water is directly discharged without secondary utilization, the utilization efficiency is low, serious water resource waste is caused, and the discharge amount of sewage is increased.

The current market presents solutions to the relative problems, some water-saving machines are on the market, but these machines are very rarely installed due to high manufacturing costs and high energy consumption. Therefore, the invention provides a related solution, and an idea of using water in the steps is provided from the perspective of using water in each step of a family, secondary or even multiple water use is completed to the maximum extent, the water is used layer by layer, the kinetic energy and the potential energy utilization rate of water flow are increased to the maximum extent, and the water wheels are matched for power generation, storage and reutilization. And the hydraulic system is designed to utilize secondary pressurized resident water for energy input, and the water after multiple use is used for flushing the closestool, so that each drop of water is extremely applied.

Disclosure of Invention

The purpose of the invention is as follows: aiming at the problems in the prior art, the invention provides a cascade water-based power generation energy-saving and energy-storing device, which solves the problems that the multi-stage utilization of water resources cannot be realized in the current family life and the waste is serious.

The technical scheme is as follows: the invention relates to a step water-based power generation energy-saving energy storage device, which comprises at least two water tanks which are communicated through water pipes and are sequentially lowered in installation position, wherein the last water tank is communicated with a water storage tank through a water feeding mechanism; each level of water tank comprises a filtering area and a temporary water storage area, and at least one level of water tank comprises a power generation area; each power generation area comprises a power generation water wheel, and at least one power generation area is also internally provided with a water collecting lever; the rotating shaft of each water wheel is connected with the input end of the generator, and the output end of the generator is connected with the input end of the storage battery box; the middle part of the water collecting lever is rotatably connected to the inner wall of the water tank, the end of the funnel with lighter weight is positioned right below the water inlet of the water tank, and the lower part of the end with heavier weight is provided with a supporting rod; the power generation water wheels are sequentially and rotatably arranged on the drainage inclined plane from top to bottom, and the rotating shaft of each power generation water wheel is parallel to the drainage inclined plane; every two of the water wheels are also provided with a diversion accelerating plate, the diversion accelerating plate faces the water collecting lever at the larger end of an included angle between the diversion inclined planes, and the water wheels face the lower part at the smaller end of the included angle.

Furthermore, the water feeding mechanism comprises a pressure water feeding cylinder, a push plate and a hydraulic rod, wherein the telescopic end of the hydraulic rod penetrates through a through hole at the bottom of the pressure water feeding cylinder and then is connected with the push plate positioned in the pressure water feeding cylinder, the peripheral edge of the push plate is in moving pair type sealing contact with the inner wall of the pressure water feeding cylinder, and the other end of the hydraulic rod is a power end; a water inlet with a lower position and a water outlet with a higher position are respectively arranged on two sides of the pressure water feeding cylinder, the water inlet is communicated with a water outlet of a temporary water storage area of the last stage water tank, and the water outlet is communicated with the water storage tank; and in the non-working state of the water feeding mechanism, the push plate is positioned below the water inlet. In practical application, the water storage tank is higher than the last-stage water tank frequently, at the moment, a water feeding mechanism is required to be added between the last-stage water tank and the water storage tank, the water feeding mechanism can feed water in the last-stage water tank into the water storage tank, particularly collect the water in the last-stage water tank into a pressure water feeding cylinder, a hydraulic rod moves upwards to drive a push plate to move upwards, the water in the pressure water feeding cylinder above the push plate moves upwards to the water from a water outlet to be fed into the water storage tank, and the water in the water storage tank can be directly used for flushing a toilet and the like. Furthermore, a power end of the hydraulic rod is connected with a three-way water pipe, a first end of the three-way water pipe is connected with the power end of the hydraulic rod, a second end of the three-way water pipe is connected with a tap water pipe, and a third end of the three-way water pipe is a free end; and the second end is provided with a load electromagnetic valve, and the third end is provided with an unloading electromagnetic valve. When the load electromagnetic valve and the unloading electromagnetic valve are closed simultaneously, the pressure water feeding cylinder stores water, when the load electromagnetic valve is opened and the unloading electromagnetic valve is closed, tap water is introduced to drive the push plate to rise, the water in the pressure water feeding cylinder is lifted, when the water is lifted to the water outlet, water flow enters the water storage tank through the fourth water pipe to be used for flushing the closestool, when the load electromagnetic valve is closed and the unloading electromagnetic valve is opened, the push plate descends and restores to the initial state that the push plate is positioned below the water inlet.

Preferably, the water conservancy diversion is the arc structure with it is trumpet-shaped space to form the cross-section between the drainage inclined plane, and the great end orientation of opening in this trumpet-shaped space the water collection lever, the less end orientation of opening generate electricity water wheels of below. Design the water conservancy diversion acceleration plate like this and make the hydroenergy that leaves from the funnel end of water collection lever can be concentrated the water conservancy diversion by the trumpet-shaped opening that water conservancy diversion acceleration plate and drainage inclined plane formed, and water flows to the process of the less end of opening from the great end of opening, and water velocity sharply increases, and the kinetic energy of water increases, and the water of flowing from less open end strikes the electricity generation water wheels of below rapidly, can utilize the kinetic energy of water to drive electricity generation water wheels electricity generation by the at utmost.

Further, the water inlet is communicated with a water outlet of a temporary water storage area of the third-level water tank through a third water pipe, the water outlet is communicated with the water storage tank through a fourth water pipe, a third valve is installed on the third water pipe, and a one-way valve is installed on the fourth water pipe.

Preferably, the water tank includes one-level water tank, second grade water tank and the tertiary water tank that the position reduces in proper order, wherein, all include in one-level water tank, second grade water tank and the tertiary water tank the electricity generation district, include in the electricity generation district of one-level water tank and tertiary water tank the electricity generation water wheels with the lever catchments, include in the electricity generation district of secondary water tank the electricity generation water wheels.

Preferably, the filtering areas of the first-stage water tank and the third-stage water tank are first filtering plates horizontally arranged below the drainage inclined plane, and the temporary water storage area is positioned below the first filtering plates; the filtering area of the secondary water tank is vertically arranged on the second filter plate at the bottom end of the drainage inclined plane, and the temporary water storage area is a rinsing groove positioned on one side of the second filter plate.

Furthermore, the bottom of the rinsing groove is communicated with a water inlet of the lower tertiary water tank through a second water pipe which is vertically arranged; at least one power generation impeller with arc-shaped blades is coaxially installed in the second water pipe, a rotating shaft of each power generation impeller is arranged in parallel with the second water pipe, the rotating shaft is connected with the input end of the power generator, and the output end of the power generator is connected with the storage battery box.

Furthermore, a first water outlet of the temporary water storage area of the primary water tank is communicated with a power generation area of the secondary water tank through a first water pipe, and a first valve is mounted on the first water pipe; and a second water outlet of the temporary water storage area of the primary water tank, which is positioned below the first water outlet, is communicated with the temporary water storage area of the secondary water tank through a standby water pipe, and a second valve is installed on the standby water pipe.

Furthermore, the bottom of the water storage tank is communicated with an overflow pipe, and an overflow valve is installed on the overflow pipe. When the water pressure in the water storage tank is too high, the overflow valve is opened, water flows out through the overflow pipe, and the water pressure in the water storage tank can be prevented from being too high.

Has the advantages that: in the inventionThe household low-energy-consumption cascade water power generation device can collect secondary water resources such as bath water, hand washing pool water, kitchen water, washing machine drainage and the like through all levels of water tanks, and then according to the energy conservation principle and the mass conservation principle of water (the step water power generation device) (

) When the collected secondary water flows into the funnel end of the water collecting lever right below the water inlet through the water inlets of the water tanks at all stages and is accumulated to a certain amount, the water collecting lever rotates, the funnel end moves downwards to pour out the secondary water, the secondary water flows down along the drainage inclined plane and then drives the power generation water wheel to rotate by utilizing the potential energy of the water, the power generation water wheel drives the input end of the generator to rotate for power generation, and the power generated by the generator is collected by the storage battery box; in the process that water flows down along the drainage inclined surface, water left from the funnel end of the water collection lever can be guided in a concentrated mode through the horn-shaped opening formed by the guide acceleration plate and the drainage inclined surface, in the process that the water flows from the end with the larger opening to the end with the smaller opening, the water flow speed is increased rapidly, the kinetic energy of the water is increased, the water flowing out from the end with the smaller opening rapidly impacts the power generation water wheel below, and the kinetic energy of the water can be utilized to the maximum degree to drive the power generation water wheel to generate power. Water flowing out of the power generation area of the first-stage water tank is filtered by the filtering area and then is stored in the temporary water storage area; the water in the temporary water storage area of the first-stage water tank can flow out of a power generation area of the second-stage water tank at a lower position through a water pipe, the water flow in the power generation area of the second-stage water tank drives the power generation water wheel to generate power and collect in the same manner, the water flowing out of the power generation area of the second-stage water tank flows into the temporary water storage area after being filtered by the filtering area, the water in the temporary water storage area can be used for washing mops and the like, the washing work can be finished without too clean water, and the like.

This device has realized the polybasic utilization and the step water use of water for domestic water at ordinary times can obtain reasonable reutilization, can also generate electricity when saving the water resource, green.

Drawings

FIG. 1 is a cross-sectional view of the overall structure of a household low-energy-consumption cascade water-based power generation energy-saving energy storage device;

FIG. 2 is a detail view of the primary water tank;

FIG. 3 is a view showing a non-operating state of the water collection lever;

FIG. 4 is a view showing the operation state of the water collection lever;

FIG. 5 is a detail view of the secondary water tank (diversion accelerator plate not shown);

FIG. 6 is a detail view of the watering mechanism;

fig. 7 is a schematic view showing the position of the power generation impeller in the second water pipe.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The embodiment provides a household step hydroelectric generation energy-saving energy storage device, which comprises a primary water tank 1, a secondary water tank 5 and a tertiary water tank 8, wherein the positions of the primary water tank, the secondary water tank and the tertiary water tank are sequentially reduced, a water feeding mechanism and a water storage tank 13, and the position of the water storage tank is higher than that of the tertiary water tank 8, as shown in fig. 1.

Referring to fig. 2, the primary water tank 1 includes a power generation region, a filtration region and a temporary water storage region, the drainage inclined plane 7 is installed in the primary water tank 1, the power generation region is above the drainage inclined plane 7, the filtration region is below the drainage inclined plane 7, the filtration region is horizontally installed with a first filter plate 16, and the first filter plate 16 can be coated with chemical substances for filtering. Below the first filter plate 16 is a temporary water storage area. The power generation area comprises a water collecting lever 2 and two power generation water wheels 3, the middle part of the water collecting lever 2 is rotatably connected to the inner wall of the primary water tank 1, a funnel end 201 with light weight is positioned right below a water inlet formed in the top of the primary water tank 1, a support rod 4 is arranged below one end with heavy weight, when no water flows into the funnel end 201, one end with heavy weight is supported by the support rod 4, namely the funnel end 201 is arranged above, and the other end with heavy weight is lapped on the support rod 4, as shown in figure 3; after the water in the funnel stopping end 201 is collected to a certain weight, the water collecting lever 2 rotates around the rotating shaft, the funnel end 201 descends, and the other end is upwards separated from the support of the supporting rod 4, as shown in fig. 4. The generating water wheels 3 are sequentially and rotatably arranged on the drainage inclined plane 7 from top to bottom, and the rotating shaft of each generating water wheel 3 is arranged in parallel with the drainage inclined plane 7; still install the water conservancy diversion acceleration plate 14 of arc structure between two liang of electricity generation waterwheel 3, form the cross-section for loudspeaker column space between water conservancy diversion acceleration plate 14 and the drainage inclined plane 7, the great end orientation of contained angle between water conservancy diversion acceleration plate 14 and the drainage inclined plane 7 lever 2 that catchments, the less end of contained angle is towards the electricity generation waterwheel 3 of below, the great end orientation of opening in loudspeaker column space promptly lever 2 that catchments, the less end of opening towards the electricity generation waterwheel 3 of below. The rotating shafts of the water wheels 3 are respectively connected with the input end of a generator, the output end of the generator is connected with the input end of a storage battery box 104, and the generator and the storage battery box 104 are both fixed on the outer wall of the primary water tank 1; the top and the lateral wall of one-level water tank 1 have also been seted up the access hole respectively, and installation end cover 102 on the access hole, when needing to overhaul the problem that one-level water tank 1 is inside to appear, open end cover 102 and can conveniently overhaul.

As shown in fig. 5, the secondary water tank 5 comprises a power generation area, a filtering area and a temporary water storage area, the drainage inclined plane 7 is installed in the secondary water tank 5, the power generation area is arranged above the drainage inclined plane 7, the filtering area is arranged at the bottom end of the drainage inclined plane 7, the filtering area is vertically provided with a second filtering plate 17, and chemical substances with filtering effect can be coated on the second filtering plate 17. The second filter 17 right side is for depositing water district temporarily, and this temporarily deposits water district and is located second grade water tank 5 outsidely, can regard as the rinsing groove 501 of rinsing the mop. Two power generation water wheels 3 included in the power generation area are sequentially and rotatably arranged on the drainage inclined plane 7 from top to bottom, and a rotating shaft of each power generation water wheel 3 is arranged in parallel with the drainage inclined plane 7; the rotating shaft of each power generation water wheel 3 is respectively connected with the input end of a generator, the output end of the generator is connected with the input end of a storage battery box 104, and the generator is fixed on the outer wall of the secondary water tank 5; the top of the secondary water tank 5 is provided with an access hole, the access hole is provided with an end cover 102, and when the problems in the secondary water tank 5 need to be overhauled, the end cover 102 is opened to facilitate overhaul.

As shown in fig. 5, the structure of the third-stage water tank 8 is substantially the same as that of the first-stage water tank 1, and the difference is that a spare water inlet 25 may be further formed on the top surface of the third-stage water tank 8 for collecting other secondary wastewater that is inconvenient to collect in the first-stage water tank 1, and the rest of the structure is the same as that of the first-stage water tank 1, which is not described herein again.

As shown in fig. 6, the watering mechanism comprises a pressure water feeding cylinder 9, a push plate 10 and a hydraulic rod 11, wherein the telescopic end of the hydraulic rod 11 penetrates through a through hole at the bottom of the pressure water feeding cylinder 9 and then is connected with the push plate 10 positioned inside the pressure water feeding cylinder 9, the peripheral edge of the push plate 10 is in moving pair type sealing contact with the inner wall of the pressure water feeding cylinder 9 (a sealing ring can be sleeved on the peripheral edge of the push plate 10), and the other end of the hydraulic rod 11 is a power end; the power of the power end comes from the pressure of tap water, the power end of the hydraulic rod 11 is connected with a three-way water pipe 26, the first end of the three-way water pipe 16 is connected with the power end of the hydraulic rod 11, the second end of the three-way water pipe is connected with the tap water pipe, and the third end of the three-way water pipe is a free end; a load solenoid 901 is mounted on the second end, and an unload solenoid 902 is mounted on the third end. A lower water inlet 903 and a higher water outlet 904 are respectively arranged on both sides of the pressure water feeding cylinder 9.

As shown in fig. 2, the temporary water storage area of the primary water tank 1 is provided with two water outlets, namely, an upper water outlet and a lower water outlet, the first water outlet 103 positioned above the temporary water storage area is communicated with the power generation area of the secondary water tank 5 through a first water pipe 19, and a first valve 6 is arranged on the first water pipe 19; the second water outlet 105 positioned below is communicated with the temporary water storage area of the secondary water tank 5 through a standby water pipe 20, and a second valve 21 is installed on the standby water pipe 20. The bottom of a rinsing groove 501 of the secondary water tank 5 is communicated with the water inlet of the power generation area of the lower tertiary water tank 8 through a second water pipe 502 which is vertically arranged. A power generation impeller 18 with arc-shaped blades is installed in the second water pipe 502, and the rotating shaft of the power generation impeller 18 is arranged in parallel with the second water pipe 502, as shown in fig. 7; the rotating shaft is connected with the input end of a generator fixed on the outer wall of the secondary water tank 5, and the output end of the generator on the outer wall of the secondary water tank 5 is also connected with the input end of the storage battery box 104. The water outlet of the temporary water storage area of the third-stage water tank 8 is communicated with the water inlet 903 of the pressure water feeding cylinder 9 through a third water pipe 801, a third valve 24 is arranged on the third water pipe 801, the water outlet 904 of the pressure water feeding cylinder 9 is communicated with the water storage tank 13 through a fourth water pipe 27, and a one-way valve 23 is arranged on the fourth water pipe 27; in the non-working state of the water feeding mechanism, the push plate 10 is positioned below the water inlet 903. The bottom of the water storage tank 13 is communicated with an overflow pipe 22, and an overflow valve 15 is installed on the overflow pipe 22.

The working principle of the household low-energy-consumption cascade water-based power generation energy-saving energy storage device is as follows:

secondary waste water such as bath water, hand washing pool water, kitchen water, washing machine drainage and the like flows into a funnel end 201 of a water collecting lever 2 right below a water inlet 101 through the water inlet of a primary water tank 1, when water in the funnel end 201 is accumulated to a certain amount, the water collecting lever 2 rotates anticlockwise, the funnel end 201 moves downwards, the secondary waste water flows down along a drainage inclined plane 7, a power generation water wheel 3 is driven to rotate by the potential energy of the water, the power generation water wheel 3 drives an input end of a generator to rotate for power generation, and the power generated by the generator is collected by a storage battery box 104; in the process that water flows down along the drainage inclined plane 7, water left from the funnel end 201 of the water collection lever 2 can be guided in a concentrated mode by the horn-shaped opening formed by the guide accelerating plate and the drainage inclined plane 7, water flows from the end with the larger opening to the end with the smaller opening, the water flow speed is increased rapidly, the kinetic energy of the water is increased, the water flowing out of the end with the smaller opening impacts the power generation water wheel 3 below rapidly, and the kinetic energy of the water can be utilized to the maximum degree to drive the power generation water wheel to generate power.

The water flowing out of the power generation area of the primary water tank 1 is filtered by a first filter plate 16 of the filtering area and then is stored in a temporary water storage area below the filtering area; the first valve 6 on the first water pipe 19 is normally in an open state, so that water in the temporary water storage area of the primary water tank 1 flows into the power generation area of the secondary water tank 5 through the first water pipe 19, the water flows downwards through the drainage inclined plane 7 of the secondary water tank 5 to drive the power generation water wheel 3, the rotation of the power generation water wheel 3 drives the generator to generate power, and the power generated by the generator is collected by the storage box 104; the water passing through the power generation area of the secondary water tank 5 enters the rinsing tank 501 after being filtered by the vertical second filter plate 17. If the temporary water storage area of one-level water tank 1 is not used by the rinsing tank 501 of the second-level water tank 5 through the water discharged from the first water outlet 103 at the upper part, the second valve 21 on the standby water pipe 20 can be opened, so that the water stored below the temporary water storage area of one-level water tank 1 can be discharged into the second-level water tank 5 through the second water outlet 105 at the lower part, and the water is directly filtered by the second filter plate 17 of the second-level water tank 5 to be rinsed by the rinsing tank 501 of the second-level water tank 5, so as to be used for rinsing the mop in an emergency way. Generally, the water inlet of the secondary water tank 5 is slightly lower than the first water outlet 103 of the temporary water storage area of the primary water tank 1, and the water inlet of the temporary water storage area of the secondary water tank 5 is slightly lower than the second water outlet 105 of the temporary water storage area of the primary water tank 1.

Rinse the water behind the mop in the wash tank 501 and flow into the power generation district of tertiary water tank 8 through the second water pipe 502 of wash tank 501 bottom, rivers process and the power generation process in the power generation district of tertiary water tank 8 and in one-level water tank 1 the same basically, the only difference is, can also collect other rooms through the reserve water inlet 25 of tertiary water tank 8 top surface and be not convenient for through the secondary waste water that one-level water tank 1 collected, all the other is identical with one-level water tank 1 completely, do not do the repeated description here.

When the water in the rinsing tank 501 flows into the third-stage water tank 8 through the second water pipe 502, the power generation impeller 18 in the second water pipe 502 is driven to rotate by the flow of the water, the rotating shaft of the power generation impeller 18 drives the input shaft of the power generator fixed on the outer wall of the second-stage water tank 5 to rotate, and the power generated by the power generator is output to the storage battery box 104.

When the third valve 24 of the third water pipe 801 is opened, the water stored in the temporary water storage area of the tertiary water tank 8 flows into the pressure feed water tank 9 through the third water pipe 801 and the water inlet 903. At the moment, the load electromagnetic valve 901 and the unloading electromagnetic valve 902 are closed simultaneously, the pressure water supply cylinder 9 stores water, when the load electromagnetic valve 901 is opened and the unloading electromagnetic valve 902 is closed, tap water is introduced to drive the push plate 10 to rise, the water in the pressure water supply cylinder 9 is lifted, when the water is lifted to the water outlet 904, the one-way valve 23 is opened, water flow enters the water storage tank 13 through the fourth water pipe 27 to be used for flushing a toilet and the like for three times, and when the load electromagnetic valve 901 is closed and the unloading electromagnetic valve 902 is opened, the push plate 10 descends and returns to the initial state of the push plate 10 below the water inlet 903.

When the water pressure in the water storage tank 13 exceeds a preset value, part of water can be discharged through the overflow pipe 22 by opening the overflow valve 15 to prevent backflow caused by too high water pressure in the water storage tank 13.

The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The step water-based power generation energy-saving energy storage device is characterized by comprising at least two water tanks which are communicated through water pipes and are sequentially lowered in installation position, wherein the last water tank is communicated with a water storage tank (13) through a water feeding mechanism; each level of water tank comprises a filtering area and a temporary water storage area, and at least one level of water tank comprises a power generation area; each power generation area comprises a power generation water wheel (3), and at least one power generation area is also internally provided with a water collecting lever (2); the rotating shaft of each power generation water wheel (3) is respectively connected with the input end of the generator, and the output end of the generator is connected with the input end of the storage battery box (104);

the middle part of the water collecting lever (2) is rotatably connected to the inner wall of the water tank, the funnel end (201) with light weight is positioned right below the water inlet (101) of the water tank, and the supporting rod (4) is arranged below the end with heavy weight; the power generation water wheels (3) are sequentially and rotatably arranged on the drainage inclined plane (7) from top to bottom, and the rotating shaft of each power generation water wheel (3) is parallel to the drainage inclined plane (7);

every two liang still install water conservancy diversion acceleration plate (14) between power generation waterwheel (3), water conservancy diversion acceleration plate (14) with the great end orientation of contained angle between drainage inclined plane (7) water collection lever (2), the less end orientation of contained angle power generation waterwheel (3) of below.

2. The step hydroelectric energy-saving and energy-storing device according to claim 1, wherein the watering mechanism comprises a pressure water feeding cylinder (9), a push plate (10) and a hydraulic rod (11), the telescopic end of the hydraulic rod (11) passes through a through hole at the bottom of the pressure water feeding cylinder (9) and then is connected with the push plate (10) positioned inside the pressure water feeding cylinder (9), the peripheral edge of the push plate (10) is in moving pair type sealing contact with the inner wall of the pressure water feeding cylinder (9), and the other end of the hydraulic rod (11) is a power end;

a lower water inlet (903) and a higher water outlet (904) are respectively formed in two sides of the pressure water feeding cylinder (9), the water inlet (903) is communicated with a water outlet of a temporary water storage area of the last-stage water tank, and the water outlet (904) is communicated with the water storage tank (13); and in the non-working state of the water feeding mechanism, the push plate (10) is positioned below the water inlet (903).

3. The step water power generation energy-saving energy storage device according to claim 2, wherein a three-way water pipe (26) is connected to the power end of the hydraulic rod (11), a first end of the three-way water pipe (26) is connected to the power end of the hydraulic rod (11), a second end of the three-way water pipe is connected to a tap water pipe, and a third end of the three-way water pipe is a free end; and a load solenoid valve (901) is arranged at the second end, and an unloading solenoid valve (902) is arranged at the third end.

4. The step hydroelectric energy-saving energy storage device according to claim 1, wherein the flow guiding acceleration plate (14) has an arc structure, a trumpet-shaped space with a section is formed between the flow guiding acceleration plate and the flow guiding inclined surface (7), the larger opening end of the trumpet-shaped space faces the water collecting lever (2), and the smaller opening end of the trumpet-shaped space faces the lower generating water wheel (3).

5. The step hydroelectric energy-saving and energy-storing device as claimed in claim 1, wherein the water inlet (903) is communicated with the water outlet of the temporary water storage area of the tertiary water tank (8) through a third water pipe (801), the water outlet (904) is communicated with the water storage tank (13) through a fourth water pipe (27), a third valve (24) is installed on the third water pipe (801), and a check valve (23) is installed on the fourth water pipe (27).

6. The step hydroelectric energy-saving energy storage device according to claim 1, wherein the water tank comprises a first water tank (1), a second water tank (5) and a third water tank (8) which are sequentially lowered in position, wherein the power generation region is included in each of the first water tank (1), the second water tank (5) and the third water tank (8), the power generation water wheel (3) and the water collection lever (2) are included in the power generation regions of the first water tank (1) and the third water tank (8), and the power generation water wheel (3) is included in the power generation region of the second water tank (5).

7. The step hydroelectric energy-saving and energy-storing device as claimed in claim 6, wherein the filtering areas of the primary water tank and the tertiary water tank (8) are first filtering plates (16) horizontally arranged below the drainage inclined plane (7), and the temporary water storage area is positioned below the first filtering plates (16);

the filtering area of the secondary water tank (5) is vertically arranged on the second filtering plate (17) at the bottom end of the drainage inclined plane (7), and the temporary water storage area is a rinsing groove (501) positioned on one side of the second filtering plate (17).

8. The step hydroelectric energy-saving energy storage device according to claim 7, wherein the bottom of the rinsing tank (501) is communicated with the water inlet of the lower tertiary water tank (8) through a second water pipe (502) which is vertically installed;

at least one power generation impeller (18) with arc-shaped blades is coaxially installed in the second water pipe (502), a rotating shaft of each power generation impeller (18) is arranged in parallel with the second water pipe (502), the rotating shaft is connected with the input end of the generator, and the output end of the generator is connected with the storage battery box (104).

9. The step hydroelectric energy-saving and energy-storing device as claimed in claim 8, wherein the first water outlet (103) of the temporary water storage area of the primary water tank (1) is communicated with the power generation area of the secondary water tank (5) through a first water pipe (19), and a first valve (6) is mounted on the first water pipe (19);

the second water outlet (105) of the temporary water storage area of the primary water tank (1) below the first water outlet (103) is communicated with the temporary water storage area of the secondary water tank (5) through a standby water pipe (20), and a second valve (21) is installed on the standby water pipe (20).

10. The step water power generation energy-saving energy storage device according to any one of claims 1 to 9, wherein the bottom of the water storage tank (13) is communicated with an overflow pipe (22), and an overflow valve (15) is mounted on the overflow pipe (22).