阅读说明：本技术 高压高位自循环输水储能多级发电站及其发电方法 (High-pressure high-level self-circulation water delivery energy storage multistage power station and power generation method thereof ) 是由 尹芬芳 于 2021-10-08 设计创作，主要内容包括：本发明公开了一种高压高位自循环输水储能多级发电站,包括水池,水池的底部设有压水腔,水池于压水腔的上方设有多层相连通的发电腔,压水腔与最下方的发电腔连通,各发电腔内均设有水轮机发电机组,压水腔的底部通过输水管与最上方水轮机发电机组的进水口连接,压水腔中设有连续压水机构,连续压水机构用于使水池中的水通过输水管压送至最上方水轮机发电机组中。还公开了一种高压高位自循环输水储能多级发电站的发电方法,包括步骤：水池中放满水；连续压水。本高压高位自循环输水储能多级发电站占地面积小,需水量少,减少了水患,施工周期短。本高压高位自循环输水储能多级发电站的发电方法能够实现自动下压,降低输水能耗。(The invention discloses a high-pressure high-position self-circulation water delivery and energy storage multi-stage power station which comprises a water pool, wherein a water pressing cavity is arranged at the bottom of the water pool, a plurality of layers of power generation cavities communicated with each other are arranged above the water pressing cavity of the water pool, the water pressing cavity is communicated with the power generation cavity at the bottom, a water turbine generator set is arranged in each power generation cavity, the bottom of the water pressing cavity is connected with a water inlet of the water turbine generator set at the top through a water delivery pipe, a continuous water pressing mechanism is arranged in the water pressing cavity, and the continuous water pressing mechanism is used for enabling water in the water pool to be pressed and delivered into the water turbine generator set at the top through the water delivery pipe. Also discloses a power generation method of the high-pressure high-level self-circulation water delivery and energy storage multi-stage power station, which comprises the following steps: the water pool is filled with water; and continuously pressing water. The high-pressure high-level self-circulation water delivery and energy storage multi-stage power station has the advantages of small floor area, less water demand, reduction of flood damage and short construction period. The power generation method of the high-pressure high-level self-circulation water delivery and energy storage multi-stage power station can realize automatic pressing and reduce the water delivery energy consumption.)

1. The utility model provides a high-pressure high-order self-loopa water delivery energy storage multi-stage power station which characterized in that: the water turbine power generation device is characterized by comprising a water pool (1), wherein a water pressing cavity (11) is arranged at the bottom of the water pool (1), a plurality of layers of power generation cavities (12) communicated with each other are arranged above the water pressing cavity (11) of the water pool (1), the water pressing cavity (11) is communicated with the power generation cavity (12) at the bottom, a water turbine power generation unit (2) is arranged in each power generation cavity (12), the bottom of the water pressing cavity (11) is connected with a water inlet of the water turbine power generation unit (2) at the top through a water conveying pipe (3), a continuous water pressing mechanism (4) is arranged in the water pressing cavity (11), and water in the water pool (1) is pressed and conveyed into the water turbine power generation unit (2) at the top through the water conveying pipe (3).

2. The high pressure high level self-circulation water and energy transfer multi-stage power plant of claim 1, wherein: continuous pressurized-water mechanism (4) are including two lift pressure horizontal platforms (41) that set up from top to bottom, lift pressure horizontal platform (41) are slided and are located in pressing water chamber (11), be equipped with drain (42), be used for the switch door body (43) of drain (42) and be used for closing or opening switch door drive assembly (44) of door body (43) on lift pressure horizontal platform (41), each lift pressure horizontal platform (41) are connected with lift drive assembly respectively.

3. The high pressure high level self-circulation water and energy transfer multi-stage power plant of claim 2, wherein: and a spacer block (13) is arranged between the two lifting and pressing horizontal platforms (41) on the inner wall of the water pressing cavity (11).

4. The high pressure high level self-circulation water and energy transfer multi-stage power plant of claim 2, wherein: the high-pressure high-level self-circulation water and energy storage multi-stage power station further comprises a control center (5), and the lifting driving assembly and the door opening and closing driving assembly (44) are electrically connected with the control center (5).

5. The high pressure high level self-circulation water and energy transfer multi-stage power plant of claim 2, wherein: the lifting pressure horizontal table (41) is a square table, at least two water discharge ports (42) are arranged, each water discharge port (42) is arranged at intervals along the length direction or the width direction of the lifting pressure horizontal table (41), each water discharge port (42) is correspondingly provided with a door body (43), and the door bodies (43) are connected into a whole through a connecting piece (6).

6. The high pressure high level self-circulation water and energy transfer multi-stage power plant of claim 1, wherein: the water pool (1) is a square pool.

7. The high pressure high level self-circulation water and energy transfer multi-stage power plant of claim 1, wherein: the bottom of the water pressing cavity (11) is provided with a base groove (7), the base groove (7) is obliquely arranged, and the bottom end of the water delivery pipe (3) is connected with the bottom end of the base groove (7).

8. The high pressure high level self-circulation water and energy transfer multi-stage power plant of claim 7, wherein: the inclination angle of the base groove (7) is 10-30 degrees.

9. The high pressure high level self-circulating water and energy storage multi-stage power plant according to any one of claims 1 to 8, characterized in that: and pressurizing nozzles (8) are arranged at the top end of the water delivery pipe (3) and the water outlet of each power generation cavity (12).

10. A method of generating power in a high pressure high level self-circulation water and energy storage multi-stage power plant as claimed in any one of claims 2 to 9, wherein: the method comprises the following steps:

s1: the water pool (1) is filled with water;

s2, continuously pressing water: the upper and lower lifting and lowering horizontal platforms (41) alternately ascend and descend, and continuously press and convey water in the water pressing cavity (11) to the uppermost hydraulic turbine generator set (2) through the water conveying pipe (3) so that each hydraulic turbine generator set (2) continuously supplies water and generates power from top to bottom; the door body (43) is opened in the ascending process of the up-down lifting horizontal table (41), and the door body (43) is closed in the descending process.

Technical Field

The invention relates to the technical field of power stations, in particular to a high-pressure high-level self-circulation water and energy storage multi-stage power station and a power generation method thereof.

Background

Currently, pumped-storage power stations have an upper reservoir (upper tank) built at a high level and a lower tank built downstream of the station. The unit of the pumped storage power station can play a role of generating electricity as a common water turbine and a role of pumping water in the lower pool to the upper pool as a water pump. When the power system is in a valley load, a unit of the pumped storage power station operates as a water pump and stores water in an upper pool; and when the load is in a peak load, the generator set operates, and the stored water in the upper pool is used for generating power and transmitting the power to a power grid.

Pumped storage power stations have the following disadvantages:

1. a large amount of land is occupied to construct an upper water pool and a lower water pool;

2. the water demand is large, a large-capacity water pool needs to be built correspondingly, flood disasters are easy to occur, and hidden dangers to nearby residents exist;

3. the construction of the upper and lower water pools and the installation of the conveying pipelines of the water of the upper and lower water pools need to consume a large amount of manpower, material resources and financial resources, and the construction period is long.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a high-pressure high-level self-circulation water delivery and energy storage multistage power station which has the advantages of small floor area, less water demand, less flood and short construction period. The power generation method of the high-pressure high-level self-circulation water delivery energy storage multistage power station can realize automatic pressing and reduce water delivery energy consumption.

In order to solve the technical problems, the invention adopts the following technical scheme:

the high-pressure high-position self-circulation water delivery and energy storage multi-stage power station comprises a water pool, wherein a water pressing cavity is arranged at the bottom of the water pool, a plurality of layers of power generation cavities communicated with each other are arranged above the water pressing cavity of the water pool, the water pressing cavity is communicated with the power generation cavity at the bottom, a water turbine generator set is arranged in each power generation cavity, the bottom of the water pressing cavity is connected with a water inlet of the water turbine generator set at the top through a water delivery pipe, a continuous water pressing mechanism is arranged in the water pressing cavity, and the continuous water pressing mechanism is used for enabling water in the water pool to be pressed and delivered into the water turbine generator set at the top through the water delivery pipe.

As a further improvement of the above technical solution:

the continuous water pressing mechanism comprises two lifting and pressing horizontal tables which are arranged up and down, the lifting and pressing horizontal tables are arranged in a water pressing cavity in a sliding mode, a water drainage opening, a door body used for opening and closing the water drainage opening and a door opening and closing driving assembly used for closing or opening the door body are arranged on the lifting and pressing horizontal tables, and the lifting and pressing horizontal tables are respectively connected with the lifting and driving assemblies.

And the inner wall of the water pressing cavity is provided with a spacing block between the two lifting and pressing horizontal platforms.

The high-pressure high-level self-circulation water and energy storage multi-stage power station further comprises a control center, and the lifting driving assembly and the door opening and closing driving assembly are electrically connected with the control center.

The lifting pressure horizontal platform is a square platform, at least two water discharge ports are arranged, the water discharge ports are arranged at intervals along the length direction or the width direction of the lifting pressure horizontal platform, each water discharge port is correspondingly provided with a door body, and the door bodies are connected into a whole through connecting pieces.

The water pool is a square pool.

The bottom of the water pressing cavity is provided with a base groove, the base groove is obliquely arranged, and the bottom end of the water delivery pipe is connected with the bottom end of the base groove.

The inclination angle of the base groove is 10-30 degrees.

And pressurizing nozzles are arranged at the top end of the water delivery pipe and the lower water openings of the power generation cavities.

The power generation method of the high-pressure high-level self-circulation water delivery energy storage multistage power station comprises the following steps:

s1: the water pool is filled with water;

s2, continuously pressing water: the up-down lifting water pressing platform alternately ascends and descends, and water in the water pressing cavity is continuously and pressure-fed into the uppermost hydraulic turbine generator set through the water delivery pipe, so that each hydraulic turbine generator set continuously supplies water from top to bottom for power generation; the door body is opened in the ascending process of the up-down lifting pressure horizontal table, and the door body is closed in the descending process.

Compared with the prior art, the invention has the advantages that:

according to the high-pressure high-level self-circulation water and energy storage multi-stage power station, loops are formed among the water turbine generator sets, the water pressing cavity and the water pipe, and water flows circularly along the loops under the action of the continuous water pressing mechanism so as to continuously drive the water turbine generator sets to operate, so that the effect of continuous power generation is achieved. This high-pressure high-order self-loopa water delivery energy storage multi-stage power station sets up the electricity generation chamber from lower to upper multistage, only needs to build a pond 1, will respectively make hydraulic turbine generating set 2 in each electricity generation chamber of supreme setting in pond 1 from lower, has reduced area, has shortened construction cycle. And the water outlet of the lowermost water turbine generator set is communicated with the water pressing cavity, the water pressing cavity is connected with the water inlet of the uppermost water turbine generator set through the water conveying pipe, loops are formed among the water turbine generator sets, the water pressing cavity and the water conveying pipe, and water flows circularly along the loops under the action of the continuous water pressing mechanism, so that the water flows circularly to drive the water turbine generator sets to generate power continuously, the water consumption is reduced, and water trouble is reduced. The high-pressure high-level self-circulation water delivery and energy storage multi-stage power station has the advantages of small floor area, less water demand, reduction of flood damage and short construction period.

The invention relates to a high-pressure high-level self-circulation water delivery and energy storage multi-stage power station which continuously presses water on the premise that a water pool is full of water, wherein the continuous water pressing process comprises the following steps: the up-down lifting water pressing platform alternately ascends and descends, and water in the water pressing cavity is continuously and pressure-fed into the uppermost hydraulic turbine generator set through the water delivery pipe, so that each hydraulic turbine generator set continuously supplies water from top to bottom for power generation; the door body is opened in the ascending process of the up-down lifting pressure horizontal table, and the door body is closed in the descending process. Continuous water pressing is realized through the alternate water pressing effect of the upper lifting pressure horizontal table and the lower lifting pressure horizontal table, so that water circularly flows along the loop, and the effect of continuous power generation is achieved. And the upper and lower lifting and pressing horizontal platforms press water in a closed state, a large amount of water is supported above the lifting and pressing horizontal platforms, automatic pressing can be realized under the action of the weight of the water and the self weight, and the energy consumption of water delivery is reduced.

The invention relates to a power generation method of a high-pressure high-level self-circulation water delivery and energy storage multi-stage power station, which continuously presses water on the premise that a water pool is full of water, wherein the continuous water pressing process comprises the following steps: the up-down lifting water pressing platform alternately ascends and descends, and water in the water pressing cavity is continuously and pressure-fed into the uppermost hydraulic turbine generator set through the water delivery pipe, so that each hydraulic turbine generator set continuously supplies water from top to bottom for power generation; the door body is opened in the ascending process of the up-down lifting pressure horizontal table, and the door body is closed in the descending process. Continuous water pressing is realized through the alternate water pressing effect of the upper lifting pressure horizontal table and the lower lifting pressure horizontal table, so that water circularly flows along the loop, and the effect of continuous power generation is achieved. And the upper and lower lifting and pressing horizontal platforms press water in a closed state, a large amount of water is supported above the lifting and pressing horizontal platforms, automatic pressing can be realized under the action of the weight of the water and the self weight, and the energy consumption of water delivery is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a high-pressure high-level self-circulation water and energy storage multi-stage power station.

Fig. 2 is a schematic top view (open state) of the lifting horizontal platform of the high-pressure self-circulation water-delivery energy-storage multistage power station of the invention.

Fig. 3 is a cross-sectional view a-a of fig. 2.

Fig. 4 is a schematic sectional structural view (closed state) of the lifting and lowering horizontal platform of the high-pressure high-level self-circulation water-delivery energy-storage multi-stage power station.

Fig. 5 is a schematic top view (closed state) of the lifting horizontal platform of the high-pressure self-circulation water-delivery energy-storage multistage power station of the invention.

The reference numerals in the figures denote:

1. a pool; 11. a water pressing cavity; 12. a power generation cavity; 13. an isolation block; 2. a water turbine generator set; 3. a water delivery pipe; 4. a continuous water pressing mechanism; 41. a voltage raising and lowering horizontal table; 42. a water discharge outlet; 43. a door body; 44. a door opening and closing drive assembly; 5. a control center; 6. a connecting member; 7. a base groove; 8. and (4) pressurizing the spray head.

Detailed Description

The invention will be described in further detail below with reference to the drawings and specific examples.

The first embodiment is as follows:

fig. 1 to 5 show an embodiment of a high-pressure high-level self-circulation water and energy storage multi-stage power station, which includes a water tank 1, a water pressure chamber 11 is disposed at the bottom of the water tank 1, a plurality of layers of power generation chambers 12 communicated with each other are disposed above the water pressure chamber 11 in the water tank 1, the water pressure chamber 11 is communicated with the lowest power generation chamber 12, a hydraulic turbine generator set 2 is disposed in each power generation chamber 12, the bottom of the water pressure chamber 11 is connected with a water inlet of the uppermost hydraulic turbine generator set 2 through a water pipe 3, a continuous water pressure mechanism 4 is disposed in the water pressure chamber 11, and the continuous water pressure mechanism 4 is used for pumping water in the water tank 1 to the uppermost hydraulic turbine generator set 2 through the water pipe 3.

And a loop is formed among each water turbine generator set 2, the water pressing cavity 11 and the water delivery pipe 3, and water flows circularly along the loop under the action of the continuous water pressing mechanism 4 so as to continuously drive each water turbine generator set 2 to operate and achieve the effect of continuous power generation. This high-pressure high-order self-loopa water delivery energy storage multi-stage power station sets up power generation chamber 12 from lower to upper multistage, only needs to build a pond 1, will respectively make hydraulic turbine generating set 2 from lower to upper in each power generation chamber 12 of setting in pond 1, has reduced area, has shortened construction cycle. And the water outlet of the lowest water turbine generator set 2 is communicated with the water pressing cavity 11, the water pressing cavity 11 is connected with the water inlet of the highest water turbine generator set 2 through the water conveying pipe 3, a loop is formed among each water turbine generator set 2, the water pressing cavity 11 and the water conveying pipe 3, and water flows circularly along the loop under the action of the continuous water pressing mechanism 4, so that each water turbine generator set 2 is driven to generate power continuously through the circular flow of the water, the water consumption is reduced, and the water trouble is reduced. The high-pressure high-level self-circulation water delivery and energy storage multi-stage power station has the advantages of small floor area, less water demand, reduction of flood damage and short construction period.

In this embodiment, the continuous water pressurizing mechanism 4 includes two lifting/lowering horizontal tables 41 disposed up and down, the lifting/lowering horizontal tables 41 are slidably disposed in the water pressurizing cavity 11, a water outlet 42, a door 43 for opening/closing the water outlet 42, and a door opening/closing driving assembly 44 for opening/closing the door 43 are disposed on the lifting/lowering horizontal tables 41, and each lifting/lowering horizontal table 41 is connected with a lifting/lowering driving assembly. The periphery of the lifting pressure horizontal table 41 is matched with the inner wall of the water pressing cavity 11, so that water leakage is avoided.

Continuously pressing water on the premise that the water pool 1 is full of water, wherein the continuous water pressing process comprises the following steps: the up-down lifting pressurized-water platform 41 alternately ascends and descends, and continuously pressure-feeds water in the pressurized-water cavity 11 to the uppermost hydraulic turbine generator set 2 through the water delivery pipe 3, so that each hydraulic turbine generator set 2 continuously supplies water and generates power from top to bottom; the door body 43 is opened in the ascending process of the up-down lifting-pressing horizontal table 41, and the door body 43 is closed in the descending process. Continuous water pressing is realized through the alternate water pressing effect of the lifting water pressing platform 41, so that water circularly flows along the loop, and the effect of continuous power generation is achieved. And the up-down lifting water pressing platform 41 presses water in a closed state (the door body 43 closes the water outlet 42), a large amount of water is supported above the up-down lifting water pressing platform 41, and the water can be automatically pressed down under the action of the water and the weight of the water, so that the water delivery energy consumption is reduced.

The concrete water pressing process comprises the following steps: firstly, starting from the situation that the lower lifting and lowering horizontal table 41 is located at a high position and the lifting and lowering horizontal table 41 is located at a low position, the lifting and lowering horizontal table 41 is opened (the door body 43 opens the water outlet 42); then, the lower lifting/lowering level platform 41 is lowered from a high position to a low position from a closed state (the door 43 closes the water outlet 42), water in the water pool 1 below is pumped into the uppermost water turbine generator set 2 through the water pipe 3, the lifting/lowering level platform 41 is lowered, simultaneously, the lifting/lowering level platform 41 is raised from an open state (the door 43 opens the water outlet 42), when the lifting/lowering level platform 41 is lowered to the low position, the lifting/lowering level platform 41 is raised to the high position, and the lifting/lowering level platform 41 is opened (the door 43 opens the water outlet 42); then, the ascending and descending horizontal table 41 descends from a high position to a low position from a closed state (the door body 43 closes the water discharge port 42), water in the water pool 1 below is pumped into the uppermost water turbine generator set 2 through the water pipe 3, the ascending and descending horizontal table 41 descends, meanwhile, the lower ascending and descending horizontal table 41 ascends from an open state (the door body 43 opens the water discharge port 42), and when the upper ascending and descending horizontal table 41 descends to the low position, the lower ascending and descending horizontal table 41 ascends to the high position; therefore, continuous water pressing is realized through circulation, and the effect of continuous power generation is achieved. The lower level of the step-up/down horizontal stage 41 is higher than the upper level of the step-down horizontal stage 41.

In this embodiment, the inner wall of the water pressing cavity 11 is provided with a spacer 13 between the two lifting/lowering horizontal platforms 41. Under the isolation action of the isolation block 13, the two lifting and lowering horizontal tables 41 always keep a distance, that is, when the upper lifting and lowering horizontal table 41 is located at a low position and the lower lifting and lowering horizontal table 41 is located at a high position, the lifting and lowering horizontal tables 41 keep a distance. To increase the amount of water below the raised and lowered pressure level 41 when it is depressed.

In this embodiment, as shown in fig. 1, the high-pressure high-level self-circulation water-delivery energy-storage multi-stage power station further includes a control center 5, and the lifting driving assembly and the door opening and closing driving assembly 44 are electrically connected to the control center 5. The control center 5 controls the lifting driving component and the door opening and closing driving component 44 to be opened and closed, the lifting and the opening and the closing of the two lifting and pressing horizontal tables 41 are coordinately controlled, the automation degree is increased, the two lifting and pressing horizontal tables 41 are coordinately moved, the two lifting and pressing horizontal tables 41 alternately ascend and descend, the door body 43 is opened in the ascending process of the upper lifting and pressing horizontal table 41, and the door body 43 is closed in the descending process.

In this embodiment, as shown in fig. 2 to 5, the lifting/lowering horizontal table 41 is a square table, at least two water discharge ports 42 are provided, the water discharge ports 42 are arranged at intervals along the length direction or the width direction of the lifting/lowering horizontal table 41, one door body 43 is correspondingly provided for each water discharge port 42, and the door bodies 43 are connected into a whole through the connecting member 6. The door bodies 43 are connected into a whole through the connecting piece 6, and each lifting and lowering horizontal table 41 can drive all the door bodies 43 on the lifting and lowering horizontal table 41 to be synchronously opened and closed through one door opening and closing driving assembly 44. The control is more convenient, and the cost is lower. Correspondingly, the basin 1 is a square basin.

In this embodiment, as shown in fig. 1, a base groove 7 is disposed at the bottom of the water pressing cavity 11, the base groove 7 is disposed in an inclined manner, and the bottom end of the water pipe 3 is connected to the bottom end of the base groove 7. The base groove 7 which is obliquely arranged has a drainage guiding function on water flow, so that water in the water pressing cavity 11 smoothly enters the water conveying pipe 3.

In this embodiment, the inclination angle of the base groove 7 is 10 ° to 30 °. The inclination angle of the base groove 7 is within the range of 10-30 degrees, the drainage guide effect is good, and the resistance of the lifting and lowering horizontal table 41 in the pressing-down process can be reduced.

In this embodiment, the top end of the water pipe 3 and the drainage openings of the power generation cavities 12 are provided with pressurizing nozzles 8. Under the action of the pressurizing nozzle 8, the water flow speed is improved, and the operation of the water turbine generator set 2 is accelerated.

A base groove 7 which is excavated in the direction of 2100mm wide and 1200mm deep and is arranged in the direction of the width of the periphery of the bottom of the water pool 3, a 100mmC20 fine-stone concrete cushion layer is poured on the base groove 7, a Q235B steel plate which is 8mm thick and 1100mm wide is arranged on the cushion layer, after the steel plate is condensed with the cushion layer, a Q345B round steel pipe (a rectangular hole which is 600mm 900mm away from the end part and is 300mm away from the end part is arranged, so that construction operation in the pipe and water in the water pool can conveniently enter the water pipe 3), the bottom of the steel plate is welded along the axis of the base groove 7, the contact part of the round steel pipe is in seamless welding connection, and after the water pipe 3 is installed, the water pipe 3 is poured with the thickness of 300mm and is not less than C30 fiber concrete; further, channel steel with the width of 400 × the height of 600 × the length of 800 and adjacent edges of reserved holes of two adjacent water conveying pipes 3 are subjected to seamless welding, then C30 fiber concrete is poured into the channel steel, then Q345B C steel pipes with the wall thickness of 5mm200 × 600 are welded on the top of the channel steel in a compact mode, and then C30 fiber concrete is poured into the channel steel; digging a slope with a height slope ratio of 1:3 along the short side of a base groove 7 of 2100X 1200 at the bottom of the water pool 1, pouring a 100mmC20 fine-stone concrete cushion layer on the slope, paving a reinforcing mesh with a diameter of 10 @ 150mm and a diameter of 150mm on the cushion layer, and pouring concrete with a fiber diameter not less than 100mm and not less than C30 at the upper part of the cushion layer, so that the bottom and the periphery of the water pool 1 are well-finished. Then, welding and connecting a galvanized steel strip with the thickness of 0.4mm with the surfaces of the water delivery pipe 3 and the channel steel along the width direction of the pool 1, further pouring C30 fiber concrete in a closed area defined by the water delivery pipe 3 and the steel strip, and further spraying a ceramic coating on the surface of the steel strip; and further arranging a Q235B C-shaped steel pipe with the wall thickness of 4mm300mm x 400mm along the wide edge of the water pool 1 and along the direction of the water pipe 3 which is not arranged, welding the galvanized steel strip with the thickness of 0.4mm with the C-shaped steel pipe and two sides of the supporting column, further pouring C30 fiber concrete into the galvanized steel pipe, and further spraying a ceramic coating on the surface of the steel strip, so that the water pool 1 is built.

A water storage pressurization system: the hydraulic generator set consists of a Q235B steel plate with the thickness of 10mm, a Q345 BC-shaped steel pipe with the thickness of more than or equal to 8mm and not less than 200mm x 300mm, track steel, a lifting and lowering horizontal table 41, a hydraulic turbine generator set 2, a hydraulic base station and the like.

The manufacturing process of the water storage pressurization system comprises the following steps:

firstly, pre-arranging Q345B C-shaped steel pipes with the wall thickness of more than or equal to 8mm and not less than 200mm x 300mm in concrete-filled steel pipe support columns (two ends go deep into the columns and are not less than 100mm) around the pool 1 with the distance from the bottom of the pool 1 and welding the steel pipes, further fixing a hanging platform flange at two ends of the C-shaped steel pipes around the pool 1, pouring C30 fiber concrete in the C-shaped steel pipes, and setting not less than three C-shaped concrete-filled steel pipe beams according to each pool 1

Secondly, welding 2 rectangular steel pipes with the wall thickness of more than or equal to 8mm and the wall thickness of 100mm 5800mm and 2 rectangular steel pipes with the wall thickness of 100mm 6000mm Q345B into a square steel pipe frame with the side length of 6000mm, further welding and fixing one of 2Q 345B steel plates with the length of 6m, the width of 1.4m and the thickness of 10mm on the frame of the square steel pipe frame, and welding and fixing the other steel plate on the square steel pipe frame at the position with the distance of 1.4m from the first steel plate; further welding and fixing 75-by-75 rail steel main parts on the steel plate (the distance is not more than 900mm) and the square steel pipe frame; then, the lifting and lowering horizontal table 41 is made by installing and fixing a Q235B steel plate with the length of 6m, the width of 0.8m and the thickness of 10mm, and rail steel accessories, and the like, and the lifting and lowering horizontal table 41 is further installed on the rail steel main part, so that the sliding stroke of the lifting and lowering horizontal table 41 sliding left and right is 750mm, and the stable sliding is kept. The first platform is thus completed.

And thirdly, repeating the second step to manufacture a second hanging platform.

And fourthly, mounting a first platform hanging sleeve (the length is not less than 2m), then fixedly connecting the first platform with the first platform hanging sleeve (the first platform hanging sleeve touches the highest level of the bottom of the water pool 1), and enabling the lifting and lowering horizontal table 41 on the first platform to be in the maximum stroke (in a closed state), thus finishing the mounting of the first platform.

And fifthly, mounting a second platform lifting sleeve, fixedly connecting the second platform with the second platform lifting sleeve (the lowest position of the lifting sleeve is not less than 1m from the first platform), and enabling the lifting and pressing horizontal table 41 on the second platform to be in the maximum stroke position (in a closed state), so that the second platform is mounted.

And sixthly, installing the water turbine generator set 2, the hydraulic base station, the control center 5, the hose and the like, and then performing parameter setting and operation debugging until the operation is stable and normal.

A water delivery pipe 3: the method is characterized by being manufactured by adopting a Q345B anticorrosion round steel pipe with the wall thickness not less than 8mm and the diameter being not less than 1000 mm; the bottom steel pipe is provided with a 300mm rectangular hole (which is convenient for construction operation in the pipe and water in a water pool to enter a water delivery pipe) with 600mm 900mm away from the bottom and the end part, the middle part of the bottom steel pipe is provided with a straight steel pipe with the same mark and the same diameter, the top part of the bottom steel pipe is provided with a 45-degree bent pipe with the same diameter, the bottom water inlet steel pipe with the hole, the middle straight steel pipe and the top part of the 45-degree bent pipe are welded into a whole before installation, and an anticorrosive layer is sprayed at the welding part inside the steel pipe; spraying a ceramic coating on the outer surface of the steel pipe above the ground; then the manufactured water delivery pipe 3 is hoisted and is welded with the base groove 7 of the water pool 1. The remaining water delivery pipes 3 are installed in this order.

The steel tube concrete framework comprises a foundation at the bottom of the water pool 1, steel tube concrete walls around the water pool 1, steel tube concrete support columns above the ground of the water pool 1 and a steel tube concrete connection beam structure beam. The steel pipes are all Q345B rectangular steel pipes and C-shaped steel pipes, support columns (upper and lower column connecting arms are connected through sleeving and welding, beam-column connecting arms are welded through joggling) and C30 fiber concrete are poured in the beams, and ceramic coatings are sprayed on the surfaces of the steel pipes; the height of each layer of columns is 7-10m, the whole concrete filled steel tube framework is not more than 10 layers, and the height of the top layer is 3 m; thus, the steel pipe concrete framework is built.

The pressurizing nozzle 8 (phi is more than or equal to 1000mm, the nozzle phi is more than or equal to 900mm, and the length is 5-7 m): the water injection device is made of Q345B anticorrosion round steel pipes, each layer of steel pipe concrete framework is provided with the same number of pressurizing spray heads 8 as the water conveying pipes 3 and is fixed on the side surface of a structural beam of the steel pipe concrete framework, so that water can be injected into a single low-power water turbine generator set or a high-power water turbine generator set in a flow-gathering manner; and repeating the process to install the lower-layer pressurizing nozzle 8 until the installation is finished.

The water turbine generator set 2: the integrated water turbine permanent magnet generator set with the power not less than 100KW is adopted, a plurality of sets of low-power generator sets and a set of high-power generator sets can be installed on each layer, and the low-power generator sets and the high-power generator sets are welded and fixed with the steel pipe concrete framework structural beam, so that all equipment facilities installed on the steel pipe concrete framework are integrated with the structure.

And further, the corresponding voltage output systems and the like of the control center 5 are installed, so that the high-voltage high-level self-circulation water and energy transmission and storage multi-stage power station is built, and a plurality of small-sized medium-sized large-sized high-voltage high-level self-circulation water and energy transmission and storage multi-stage power stations are built by repeating all the steps according to the building scale of the power station.

The invention has the following effects:

1. the invention does not need to build large-scale upper and lower water pools (occupying more than 500 mu); only one water pool 1 needs to be built, and facilities and equipment required by power generation, such as the water pool 1, the water conveying pipe 3 and the like, are installed or built on the same ground, so that a large amount of land does not need to be occupied, and the land is saved by more than 95%.

2. Has no influence on nearby residences.

3. Because large-scale upper and lower water pools do not need to be built, and water pipelines do not need to be excavated, laid and installed, the manpower, the material resources and the financial resources are reduced by over 75 percent, over 60 percent and over 90 percent, the construction period is shortened by over 80 percent, and the comprehensive cost is reduced by about 75 percent.

4. The pressurizing nozzle 8 discharges water and the continuous water pressing mechanism 4 is adopted for self-pressurizing water delivery, so that the energy consumption of delivering water to the high-level water turbine generator set 2 is greatly reduced.

5. The power generation efficiency of the multi-stage (7-10 m and one stage, 3-10 stages can be set) energy storage multi-stage (7-10 m and one stage) power generation by adopting the low-level water pressing cavity 11 for storing water and high pressure (P is more than or equal to 1.8 standard atmospheric pressure) and the high-level power generation cavity 12 (the height of a water head is more than or equal to 30 m) is 8-10 times of that of the same-scale water pumping energy storage power generation.

6. Firm and durable, convenient to maintain and little in maintenance.

7. The water used for generating operation is recycled without any waste.

8. The scale can be large or small, the cost generated by power transmission is well solved, and a good environment-friendly power supply mode is provided for the electricity utilization of life, production and study of people.

Example two:

the power generation method of the high-pressure high-level self-circulation water and energy storage multi-stage power station comprises the following steps:

s1: the water pool 1 is filled with water;

s2, continuously pressing water: the up-down lifting pressurized-water platform 41 alternately ascends and descends, and continuously pressure-feeds water in the pressurized-water cavity 11 to the uppermost hydraulic turbine generator set 2 through the water delivery pipe 3, so that each hydraulic turbine generator set 2 continuously supplies water and generates power from top to bottom; the door body 43 is opened in the ascending process of the up-down lifting-pressing horizontal table 41, and the door body 43 is closed in the descending process. The lifting horizontal platform 41 descends under the action of water weight and self-weight.

The concrete water pressing process comprises the following steps: firstly, starting from the situation that the lower lifting and lowering horizontal table 41 is located at a high position and the lifting and lowering horizontal table 41 is located at a low position, the lifting and lowering horizontal table 41 is opened (the door body 43 opens the water outlet 42); then, the lower lifting/lowering level platform 41 is lowered from a high position to a low position from a closed state (the door 43 closes the water outlet 42), water in the water pool 1 below is pumped into the uppermost water turbine generator set 2 through the water pipe 3, the lifting/lowering level platform 41 is lowered, simultaneously, the lifting/lowering level platform 41 is raised from an open state (the door 43 opens the water outlet 42), when the lifting/lowering level platform 41 is lowered to the low position, the lifting/lowering level platform 41 is raised to the high position, and the lifting/lowering level platform 41 is opened (the door 43 opens the water outlet 42); then, the ascending and descending horizontal table 41 descends from a high position to a low position from a closed state (the door body 43 closes the water discharge port 42), water in the water pool 1 below is pumped into the uppermost water turbine generator set 2 through the water pipe 3, the ascending and descending horizontal table 41 descends, meanwhile, the lower ascending and descending horizontal table 41 ascends from an open state (the door body 43 opens the water discharge port 42), and when the upper ascending and descending horizontal table 41 descends to the low position, the lower ascending and descending horizontal table 41 ascends to the high position; therefore, continuous water pressing is realized through circulation, and the effect of continuous power generation is achieved. The lower level of the step-up/down horizontal stage 41 is higher than the upper level of the step-down horizontal stage 41.

Continuously pressing water on the premise that the water pool 1 is full of water, wherein the continuous water pressing process comprises the following steps: the up-down lifting pressurized-water platform 41 alternately ascends and descends, and continuously pressure-feeds water in the pressurized-water cavity 11 to the uppermost hydraulic turbine generator set 2 through the water delivery pipe 3, so that each hydraulic turbine generator set 2 continuously supplies water and generates power from top to bottom; the door body 43 is opened in the ascending process of the up-down lifting-pressing horizontal table 41, and the door body 43 is closed in the descending process. Continuous water pressing is realized through the alternate water pressing effect of the lifting water pressing platform 41, so that water circularly flows along the loop, and the effect of continuous power generation is achieved. And the up-down lifting water pressing platform 41 presses water in a closed state (the water outlet 42 is closed by the door body 43), a large amount of water is supported above the up-down lifting water pressing platform 41, and the water can be automatically pressed down under the action of the water and the weight of the water, so that the water pressing energy consumption is reduced.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.