Pumped storage and compressed air energy storage integrated equipment and use method

Abstract

The invention discloses pumped storage and compressed air energy storage integrated equipment and a using method, and belongs to the technical field of energy storage equipment, the pumped storage and compressed air energy storage integrated equipment comprises a lower reservoir, an upper reservoir, a salt cavern and a base, transfer tanks are symmetrically arranged at the top of the base, a water pump is installed at the end, close to the lower reservoir, of the top of the base, and a water pumping pipe is installed at the output end of the water pump. The two sets of transfer tanks are arranged at the top of the base, the partition plates are vertically arranged in the transfer tanks in a sliding mode, the two sets of transfer tanks alternately conduct water supply and drainage, the two sets of transfer tanks alternately conduct air supply and air exhaust, one set of transfer tanks conduct water drainage and air intake, and the other set of transfer tanks conduct water inflow and air exhaust; by means of the technical scheme, in the using process of the device, water can be conveyed to the interior of an upper reservoir through the pressure of gas, gas can be conveyed to the interior of a salt cavern through the pressure of water, water storage and gas storage are matched with each other, the energy utilization rate is greatly increased, and higher economic value is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of energy storage integrated equipment, in particular to a kind of pumped storage and compressed air energy storage integrated equipment and use method, the present application also relates to a kind of use method, in particular to a kind of pumped storage and compressed air energy storage integrated equipment use method, belong to energy storage equipment technical field. BACKGROUND

[0002] Pumped storage itself as a kind of resource, with water energy, coal and oil and other physical or chemical resources have essential difference, it is a kind of associated resources, or an economic resource, it consumes energy resources, but can optimize the use of energy resources, produce much more than it consumes energy resources system energy resource utilization economic value, and salt cavern compressed air energy storage is a kind of large-scale energy storage power generation technology application, its principle is similar to the common pumped storage power station, pumped storage power station uses low valley in night, utilizes electric energy and water is pumped to upper reservoir;Day peak use of electricity is released to generate electricity, and pumped storage power station is replaced by salt cavern, and water is replaced by air.

[0003] At present, the power generation mode of pumped storage and compressed air energy storage respectively uses independent control system to carry out water storage control and air compression storage, not only the construction cost is high, and the energy consumption is large in use process, and the economic value produced is low.

[0004] Therefore, a kind of pumped storage and compressed air energy storage integrated equipment and use method are designed to optimize the above problems. SUMMARY

[0005] The main purpose of the present application is to provide a pumped storage and compressed air energy storage integrated device and method, which comprises two groups of transfer tanks arranged on the top of the base, and a partition plate vertically arranged in each transfer tank, an inlet pipe and a drain pipe are respectively communicated with the top of each transfer tank through a first shunt pipe, an air inlet pipe and an air outlet pipe are respectively communicated with the bottom of each transfer tank through a second shunt pipe, and the two groups of transfer tanks alternately perform water feeding and draining, and air feeding and discharging, so that the device can use the pressure of gas to transport water into the upper reservoir, and use the pressure of water to transport gas into the salt cavern, and the water storage and gas storage are mutually coordinated to greatly improve the energy utilization rate and have higher economic value.

[0006] The purpose of the present application can be achieved by adopting the following technical scheme: The utility model provides an integrated equipment of pumped storage and compressed air energy storage, including lower reservoir, upper reservoir, salt cave and base, the top of base is symmetrically provided with transfer tank, the one end of base top is installed water pump near lower reservoir, the output of water pump is installed pumping pipe, the bottom end of pumping pipe is equipped with filter mechanism, the output of water pump is installed inlet pipe, the bottom end of inlet pipe is installed first three way valve, both ends of first three way valve are equipped with first shunt pipe between the top of transfer tank, the top of transfer tank is equipped with drainage pipe to the water source inside upper reservoir, and the two groups of drainage pipes are communicated, the one end of base top is equipped with air pump away from water pump, the output of air pump is equipped with inlet pipe, the end of inlet pipe is installed second three way valve, both ends of second three way valve are equipped with second shunt pipe between the bottom of transfer tank, and the bottom of transfer tank is equipped with gas pipe between salt cave, and the two groups of gas pipes are communicated, and single pipe communication mechanism is equipped between second shunt pipe and gas pipe and first shunt pipe and drainage pipe, the inside of transfer tank is vertically slidably provided with slide plate, the top of transfer tank is equipped with first control switch electric connection with first three way valve, the inner bottom of transfer tank is equipped with second control switch electric connection with second three way valve, and the two groups of transfer tanks are equipped with silt collection mechanism.

[0007] Preferably: single pipe communication mechanism includes horizontal plate, sliding groove, inlet, outlet, trapezoidal shutter and return spring, the inside of horizontal plate is provided with sliding groove along the length direction, the one end of horizontal plate top is provided with inlet, the other end of horizontal plate top is provided with outlet, and the inlet and outlet are communicated with the inside of sliding groove, the inside of sliding groove is slidably provided with trapezoidal shutter, and the trapezoidal shutter is equipped with return spring between the end of sliding groove, the inlet is communicated with first shunt pipe and second shunt pipe respectively, the outlet is communicated with drainage pipe and gas pipe respectively, and the direction of trapezoidal shutter inclined edge is towards the direction of water source or gas source.

[0008] Preferably: filter mechanism includes filter box and filter plate, and the filter box is fixed at the bottom end of pumping pipe, and the bottom end of filter box is provided with filter plate.

[0009] Preferably: the bottom end of filter box is uniformly provided with stop rod along the circumference, and the stop rod is perpendicular to the bottom end surface of filter box.

[0010] Preferably: the inner top of filter box is rotatably installed with shaft, the shaft extends to the inside of pumping pipe, the top end of shaft is installed with impeller, the bottom end of shaft extends to the bottom of filter plate, the bottom end of shaft is fixed with scraper, and the scraper is attached to the bottom surface of filter plate.

[0011] Preferably: silt collection mechanism includes collection box, guide groove, telescopic pipe, switch valve and cleaning port, and the collection box is between the two groups of transfer tanks, the top of slide plate is provided with guide groove, the bottom of guide groove is equipped with telescopic pipe between collection box, the bottom end of telescopic pipe is provided with switch valve, and the side of collection box is equipped with cleaning port.

[0012] Preferably, the cleaning port is provided with a transparent window, and the transparent window is made of transparent acrylic material.

[0013] Preferably, the guide groove is funnel-shaped, and the bottom end of the guide groove is offset to one side.

[0014] Preferably, the outer circumferential surface of the sliding plate is provided with a sealing ring, and the sealing ring is attached to the inner wall of the transfer tank.

[0015] The application also provides a use method of the pumped storage and compressed air energy storage integrated equipment, including the following steps: Step 1: during the low load period, start the water pump and the air pump, the water pump and the air pump respectively inject water and input gas into different transfer tanks, in the process of injecting water or sending gas, hydraulic pressure or air pressure is used to apply a pushing force to the trapezoidal shutter that blocks the inlet in the initial state, so as to block the discharge port at the side, the injected water or gas will not be directly discharged from the discharge port, the injection of the water source will control the downward movement of the sliding plate, and the input of the gas will control the upward movement of the sliding plate; Step 2: when a group of transfer tanks are in the process of injecting water, the trapezoidal shutter in the bottom single-pipe conduction mechanism is in the reset state under the elastic force of the reset spring, the second shunt pipe below the transfer tank is blocked, and the bottom gas sending pipe is in the conduction state, the water pressure is used to extrude the gas stored in the inner bottom of the transfer tank to the inside of the salt cavern, until the gas is completely discharged, and after the sliding plate drops to the bottom, the second control switch is pressed, the second three-way valve is adjusted, at this time, the gas sending in another transfer tank is completed, the inside of the transfer tank is filled with gas, and the gas discharged by the air pump is transported to the inside of the transfer tank. Step 3: in the process of injecting gas into a group of transfer tanks, the trapezoidal shutter in the top single-pipe conduction mechanism is also in the reset state under the elastic force of the reset spring, the first shunt pipe at the top of the transfer tank is in the blocking state, and the drain pipe is in the conduction state, the gas pressure is used to push the sliding plate in the transfer tank upwards, so that the water source at the top is transported to the inside of the upper reservoir through the drain pipe, when the sliding plate moves to the top, the first control switch is pressed, the first three-way valve is adjusted, at this time, the water transportation in another transfer tank is completed, the inside of the transfer tank is filled with water, and the water discharged by the water pump is transported to the inside of the transfer tank. Step 4: in the process of pumping the water source, the filter plate is used for filtering, the flow of water controls the rotation of the impeller, the rotation of the impeller drives the scraper to rotate, and the bottom of the filter plate is cleaned, and in the process of the sliding plate sliding up and down, the sludge adhered to the inside of the transfer tank is scraped into the inside of the guide groove, and then enters the collecting box through the telescopic pipe and is stored in the inside of the collecting box, so as to be collected and treated.

[0016] The application has the following beneficial effects: The application provides a pumped storage and compressed air energy storage integrated device and a use method, two groups of transfer tanks are arranged on the top of the base, and a partition plate is vertically and slidably arranged in each of the transfer tanks, water inlet pipes are communicated with the top of the transfer tanks through first shunt pipes, water outlet pipes are also communicated with the top of the transfer tanks, water is sent and drained alternately by the two groups of transfer tanks, in addition, air inlet pipes are communicated with the bottom of the transfer tanks through second shunt pipes, and air outlet pipes are also communicated with the bottom of the transfer tanks, air is sent and discharged alternately by the two groups of transfer tanks, one transfer tank is used for draining and air intake, and the other transfer tank is used for water intake and air discharge, so that the device can use the pressure of the gas to send water into the upper reservoir and use the pressure of the water to send the gas into the salt cavern, the water storage and the gas storage are matched with each other, the utilization rate of energy is greatly improved, and the device has higher economic value. The single pipe conduction mechanism composed of the horizontal plate, the sliding groove, the inlet, the outlet, the trapezoidal baffle and the reset spring can automatically block the air outlet pipe during air intake of one group of transfer tanks and automatically block the water outlet pipe during water intake of one group of transfer tanks, so that the water intake and discharge and the air intake and discharge of the same tank body are stably performed, the gas pressure and the water pressure are used for driving control, the device runs stably, and the practicality is higher. The filtering mechanism composed of the filtering box, the shaft rod, the impeller, the filter plate, the scraper and the blocking rod can filter the water source during water intake and drive the scraper to rotate to clean the filter plate, so that the filter plate is prevented from being blocked, in addition, the sludge collecting mechanism composed of the collecting box, the guide groove, the telescopic pipe, the switch valve and the cleaning opening can scrape the sludge on the inner wall of the transfer tank during the up-and-down sliding of the sliding plate and flow into the collecting box through the telescopic pipe to be collected and stored, so that the sludge is prevented from accumulating on the sliding plate and the stable input of the water source is ensured. DETAILED DESCRIPTION

[0017] Figure 1 It is a front view of a preferred embodiment of the application of the pumped storage and compressed air energy storage integrated device and the use method; Figure 2 It is a top structure diagram of the base of a preferred embodiment of the application of the pumped storage and compressed air energy storage integrated device and the use method; Figure 3 It is a filtering mechanism diagram of a preferred embodiment of the application of the pumped storage and compressed air energy storage integrated device and the use method; Figure 4 It is a single pipe conduction mechanism sectional view of a preferred embodiment of the application of the pumped storage and compressed air energy storage integrated device and the use method; Figure 5 It is an internal structure diagram of the transfer tank of a preferred embodiment of the application of the pumped storage and compressed air energy storage integrated device and the use method. Figure 6 Figure is a preferred embodiment of the sludge collecting mechanism of the pumped storage and compressed air energy storage integrated device and use method of the present application; Figure 7 Figure is a preferred embodiment of the sludge collecting mechanism of the pumped storage and compressed air energy storage integrated device and use method of the present application; Figure 1 Figure is an enlarged view of A in Figure

[0018] Figure: 1, lower reservoir; 2, upper reservoir; 3, salt cave; 4, base; 5, transfer tank; 6, water pump; 7, pumping pipe; 8, filtering mechanism; 801, filter box; 802, shaft; 803, impeller; 804, filter plate; 805, scraper; 806, stop rod; 9, water inlet pipe; 10, first three-way regulating valve; 11, first shunt pipe; 12, drain pipe; 13, air pump; 14, air inlet pipe; 15, second three-way valve; 16, second shunt pipe; 17, air supply pipe; 18, single pipe conduction mechanism; 1801, cross plate; 1802, chute; 1803, inlet; 1804, discharge port; 1805, trapezoidal shutter; 1806, reset spring; 19, sliding plate; 20, first control switch; 21, second control switch; 22, sludge collecting mechanism; 2201, collecting box; 2202, guide groove; 2203, telescopic pipe; 2204, on-off valve; 2205, cleaning port. DETAILED DESCRIPTION

[0019] In order to make the person skilled in the art more clear and clear the technical solutions of the present application, the present application will be further described in detail below in combination with examples and drawings, but the embodiments of the present application are not limited thereto.

[0020] As Figures 1-7The embodiment shown provides a pumped storage and compressed air energy storage integrated device, which comprises a lower reservoir 1, an upper reservoir 2, a salt cavern 3 and a base 4, the top of the base 4 is symmetrically provided with a transfer tank 5, one end of the top of the base 4 close to the lower reservoir 1 is provided with a water pump 6, the output end of the water pump 6 is provided with a pumping pipe 7, the bottom end of the pumping pipe 7 is provided with a filtering mechanism 8, the output end of the water pump 6 is provided with an inlet pipe 9, the bottom end of the inlet pipe 9 is provided with a first three-way valve 10, both ends of the first three-way valve 10 and the top of the transfer tank 5 are provided with a first shunt pipe 11, the top end of the transfer tank 5 is provided with a drain pipe 12 for conveying water source in the upper reservoir 2, two groups of drain pipes 12 are communicated, one end of the top of the base 4 away from the water pump 6 is provided with an air pump 13, the output end of the air pump 13 is provided with an air inlet pipe 14, the end of the air inlet pipe 14 is provided with a second three-way valve 15, both ends of the second three-way valve 15 and the bottom end of the transfer tank 5 are provided with a second shunt pipe 16, the bottom of the transfer tank 5 and the salt cavern 3 are provided with a gas conveying pipe 17, two groups of gas conveying pipes 17 are communicated, single pipe communication mechanisms 18 are arranged between the second shunt pipe 16 and the gas conveying pipe 17 and the first shunt pipe 11 and the drain pipe 12, the inside of the transfer tank 5 is vertically slidably provided with a sliding plate 19, the top of the transfer tank 5 is provided with a first control switch 20 electrically connected with the first three-way valve 10, the inner bottom of the transfer tank 5 is provided with a second control switch 21 electrically connected with the second three-way valve 15, and two groups of transfer tanks 5 are provided with a sludge collecting mechanism 22.

[0021] Total working principle: low load period, start water pump 6 and air pump 13, water pump 6 and air pump 13 respectively to different water injection and input gas tank 5, in the process of water injection or gas, through the single tube conduction mechanism 18, ensure that in the process of water injection, the side of the drain pipe 12 is in the closed state, and the second shunt pipe 16 at the bottom is in the closed state, the gas delivery pipe 17 is in the open state, the increase of the water level in the tank 5 will control the downward movement of the slide plate 19, the gas in the tank 5 will be transported to the inside of the salt cave 3, until completely discharged, and after the slide plate 19 is lowered to the bottom, the second control switch 21 is pressed, the second three-way valve 15 is adjusted, at this time the other tank 5 inside the gas delivery is finished, the inside is full of gas, the air pump 13 discharges the gas to the inside of the tank 5, in the process of injecting gas source in a group of tank 5, the top single tube conduction mechanism 18 will block the top first shunt pipe 11, the drain pipe 12 is in the open state, the gas pressure will push the slide plate 19 in the tank 5 upwards, the water source at the top will be transported to the inside of the upper reservoir 2 through the drain pipe 12, when the slide plate 19 moves to the top, the first control switch 20 is pressed, the first three-way valve 10 is adjusted, at this time the other tank 5 inside the water delivery is finished, the inside is full of water, the water pump 6 discharges the water to the inside of the tank 5, the load peak period, the water in the upper reservoir 2 generates electricity through the water turbine, supplements the load gap of the power grid, the salt cave 3 releases gas, and uses compressed air energy storage to generate electricity.

[0022] In this embodiment, the single tube conduction mechanism 18 includes a horizontal plate 1801, a sliding groove 1802, an inlet 1803, an outlet 1804, a trapezoidal shutter 1805 and a reset spring 1806, the inside of the horizontal plate 1801 is provided with a sliding groove 1802 along the length direction, one end of the top of the horizontal plate 1801 is provided with an inlet 1803, the other end of the top of the horizontal plate 1801 is provided with an outlet 1804, the inlet 1803 and the outlet 1804 are in communication with the inside of the sliding groove 1802, the trapezoidal shutter 1805 is slidably arranged in the sliding groove 1802, the reset spring 1806 is arranged between the trapezoidal shutter 1805 and the end of the sliding groove 1802, the inlet 1803 is in communication with the first shunt pipe 11 and the second shunt pipe 16 respectively, the outlet 1804 is in communication with the drain pipe 12 and the gas delivery pipe 17 respectively, the direction of the inclined edge of the trapezoidal shutter 1805 is towards the direction of water source or gas source.

[0023] Local working principle: the spring elastic coefficient is 5-10N / cm, the pre-compression amount is 10mm, when the water pressure is greater than or equal to 0.3MPa or the air pressure is greater than or equal to 0.5MPa, the trapezoidal shutter overcomes the spring force and moves to realize the conduction of the inlet 1803, and when the pressure disappears, the spring force drives the shutter to reset and block the inlet, the angle of the trapezoidal shutter is 45°, the sealing surface is coated with butyronitrile rubber, and the gap between the sealing surface and the inner wall of the sliding groove 1802 is less than or equal to 0.1mm, so that the gas / liquid unidirectional flow is ensured without leakage, and the reset spring 1806 applies a pushing force to the trapezoidal shutter 1805 to block the inlet 1803 in the initial state, and the outlet 1804 is in an open state, and during the process of the gas or water entering, the trapezoidal shutter 1805 is pushed to open the inlet 1803 and block the outlet 1804 to transport the liquid or gas.

[0024] In the embodiment, the filtering mechanism 8 comprises a filtering box 801 and a filtering plate 804, and the filtering box 801 is fixed at the bottom end of the water pumping pipe 7, and the bottom end of the filtering box 801 is provided with the filtering plate 804.

[0025] Local working principle: the filtering plate is made of stainless steel mesh with a pore size of 200μm, which can intercept solid particles greater than or equal to 0.2mm, and the use of the filtering plate 804 can filter the liquid to avoid blockage of the pipeline by impurities.

[0026] In the embodiment, the bottom end of the filtering box 801 is uniformly provided with a stop rod 806 in the circumferential direction, and the stop rod 806 is perpendicular to the bottom end surface of the filtering box 801.

[0027] Local working principle: the use of the stop rod 806 can support the filtering box 801 to avoid direct contact between the filtering plate 804 and the bottom of the reservoir.

[0028] In the embodiment, the inner top of the filtering box 801 is rotatably provided with a shaft rod 802, the shaft rod 802 extends into the inside of the water pumping pipe 7, the top end of the shaft rod 802 is provided with an impeller 803, the bottom end of the shaft rod 802 extends to the bottom of the filtering plate 804, and the bottom end of the shaft rod 802 is fixedly provided with a scraper 805 which is attached to the bottom surface of the filtering plate 804.

[0029] Local working principle: the bottom surface of the filtering box 801 is inclined by 15°, which facilitates the aggregation of impurities in the cleaning area of the scraper 805, and after the water flow enters the inside of the water pumping pipe 7, the water flow controls the rotation of the impeller 803, and the rotation of the impeller 803 drives the rotation of the scraper 805 to clean the bottom of the filtering plate 804.

[0030] In this embodiment, the sludge collection mechanism 22 includes a collection box 2201, a guide channel 2202, a telescopic pipe 2203, a switch valve 2204, and a cleaning port 2205. The collection box 2201 is located between two sets of transfer tanks 5. The guide channel 2202 is opened on the top of the slide plate 19. The telescopic pipe 2203 is provided between the bottom of the guide channel 2202 and the collection box 2201. The switch valve 2204 is provided at the bottom end of the telescopic pipe 2203. The cleaning port 2205 is provided on the side of the collection box 2201.

[0031] Local working principle: During the up-and-down sliding of the slide plate 19, the sludge adhering to the inside of the transfer tank 5 will be scraped off into the guide groove 2202, and then enter the collection box 2201 through the telescopic pipe 2203 for storage, so as to be collected and processed.

[0032] In this embodiment, the cleaning port 2205 has a transparent window on top, and the transparent window is made of transparent acrylic material.

[0033] Local working principle: The collection situation inside the collection box 2201 can be observed through the transparent window for timely processing.

[0034] In this embodiment, the guide groove 2202 is funnel-shaped, and the bottom end of the guide groove 2202 is offset to one side.

[0035] Local working principle: silt or other impurities enter from the bottom of the guide groove 2202 and are discharged into the interior of the telescopic pipe 2203.

[0036] In this embodiment, a sealing ring is provided on the outer circumferential surface of the slide plate 19, and the sealing ring is attached to the inner wall of the transfer tank 5.

[0037] Local working principle: The sealing ring can isolate the gas and liquid surfaces, preventing gas leakage or liquid seepage.

[0038] like Figures 1-7 As shown in the figure, this embodiment provides a method for using an integrated pumped-storage and compressed-air energy storage device, and the process is as follows: Step 1: During the off-peak period, start water pump 6 and air pump 13. Water pump 6 and air pump 13 respectively inject water and input gas into different transfer tanks 5. During the water injection or gas supply process, hydraulic or air pressure is used to apply a pushing force to the trapezoidal baffle 1805 that initially blocks the inlet 1803, blocking the outlet 1804 on the side at this position. The injected water or gas will not be discharged directly from the outlet 1804. The injection of water will control the downward movement of the slide plate 19, while the input of gas will control the upward movement of the slide plate 19. Step 2: When the inside of a group of intermediate tanks 5 is in the process of water injection, the trapezoidal shutter 1805 in the bottom single-pipe conduction mechanism 18 is in the reset state under the elastic force of the reset spring 1806, the second shunt pipe 16 below the intermediate tank 5 is blocked, and the bottom air supply pipe 17 is in the conduction state. The water pressure is used to squeeze the gas stored in the bottom of the intermediate tank 5 into the inside of the salt cave 3 until it is completely discharged. After the sliding plate 19 is lowered to the bottom, the second control switch 21 is pressed to adjust the second three-way valve 15. At this time, the air supply in the inside of another intermediate tank 5 is finished, the inside is full of gas, and the gas discharged by the air pump 13 is transported to the inside of the intermediate tank 5 where the gas is discharged. Step 3: In the process of injecting gas into the inside of a group of intermediate tanks 5, the trapezoidal shutter 1805 in the top single-pipe conduction mechanism 18 is also in the reset state under the elastic force of the reset spring 1806. The first shunt pipe 11 at the top of the intermediate tank 5 is in the blocked state, and the drain pipe 12 is in the conduction state. The gas pressure is used to push the sliding plate 19 in the inside of the intermediate tank 5 upwards, and the water source at the top is transported to the inside of the upper reservoir 2 through the drain pipe 12. After the sliding plate 19 is moved to the top, the first control switch 20 is pressed to adjust the first three-way valve 10. At this time, the water supply in the inside of another intermediate tank 5 is finished, the inside is full of water, and the water discharged by the water pump 6 is transported to the intermediate tank 5 where the water is discharged. Step 4: In the process of water extraction by the water pump 7, the filter plate 804 is used for filtering, and the rotation of the water flow control impeller 803 is controlled by the rotation of the scraper 805 driven by the impeller 803. The bottom of the filter plate 804 is cleaned, and the sludge adhered to the inside of the intermediate tank 5 is scraped off into the inside of the guide groove 2202 during the sliding of the sliding plate 19. Then it enters the inside of the collection box 2201 through the telescopic pipe 2203 for storage for collection and processing.

[0039] The above is only a further embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacement or change according to the technical solution and concept of the present application within the scope disclosed by the present application, which belongs to the protection scope of the present application.

Claims

1. A pumped storage and compressed air energy storage integrated plant comprising a lower reservoir (1), an upper reservoir (2), a salt cavern (3) and a base (4), characterized in that: The top of the base (4) is symmetrically provided with a transfer tank (5), the top of the base (4) is provided with a water pump (6) near one end of the lower reservoir (1), the output end of the water pump (6) is provided with a water suction pipe (7), the bottom end of the water suction pipe (7) is provided with a filtering mechanism (8), the output end of the water pump (6) is provided with a water inlet pipe (9), the bottom end of the water inlet pipe (9) is provided with a first three-way regulating valve (10), the two ends of the first three-way regulating valve (10) are provided with a first shunt pipe (11) between the top of the transfer tank (5), the top of the transfer tank (5) is provided with a drain pipe (12) for conveying the water source in the upper reservoir (2), the two groups of drain pipes (12) are communicated, the top of the base (4) is provided with an air pump (13) away from the water pump (6), the output end of the air pump (13) is provided with an air inlet pipe (14), the end of the air inlet pipe (14) is provided with a second three-way valve (15), the two ends of the second three-way valve (15) are provided with a second shunt pipe (16) between the bottom of the transfer tank (5), the bottom of the transfer tank (5) and the salt cave (3) are provided with a gas delivery pipe (17), the two groups of gas delivery pipes (17) are communicated, the second shunt pipe (16) and the gas delivery pipe (17) and the first shunt pipe (11) and the drain pipe (12) are provided with a single pipe communication mechanism (18), the inside of the transfer tank (5) is vertically slidably provided with a sliding plate (19), the top of the transfer tank (5) is provided with a first control switch (20) electrically connected with the first three-way regulating valve (10), the inner bottom of the transfer tank (5) is provided with a second control switch (21) electrically connected with the second three-way valve (15), the two groups of transfer tanks (5) are provided with a sludge collecting mechanism (22).

2. The pumped hydro and compressed air energy storage integrated device according to claim 1, characterized in that: The single pipe communication mechanism (18) comprises a horizontal plate (1801), a sliding groove (1802), an inlet (1803), an outlet (1804), a trapezoidal shutter (1805) and a reset spring (1806), the inside of the horizontal plate (1801) is provided with a sliding groove (1802) along the length direction, one end of the top of the horizontal plate (1801) is provided with an inlet (1803), the other end of the top of the horizontal plate (1801) is provided with an outlet (1804), the inlet (1803) and the outlet (1804) are communicated with the inside of the sliding groove (1802), the sliding groove (1802) is slidably provided with a trapezoidal shutter (1805), the trapezoidal shutter (1805) and the end of the sliding groove (1802) are provided with a reset spring (1806), the inlet (1803) is respectively communicated with the first shunt pipe (11) and the second shunt pipe (16), the outlet (1804) is respectively communicated with the drain pipe (12) and the gas delivery pipe (17), the direction of the oblique side of the trapezoidal shutter (1805) is towards the direction of the water source or the air source.

3. The pumped hydro and compressed air energy storage integrated device according to claim 1, characterized in that: The filtering mechanism (8) comprises a filtering box (801) and a filtering plate (804), the filtering box (801) is fixed at the bottom end of the water suction pipe (7), the bottom end of the filtering box (801) is provided with a filtering plate (804).

4. The pumped hydro and compressed air energy storage integrated device according to claim 3, characterized in that: The bottom end of the filter box (801) is uniformly provided with a stop rod (806) in the circumferential direction, and the stop rod (806) is perpendicular to the bottom end surface of the filter box (801).

5. The pumped hydro and compressed air energy storage integrated device according to claim 4, characterized in that: The inner top of the filter box (801) is rotatably provided with a shaft rod (802), the shaft rod (802) extends to the inside of the water pump (7), the top end of the shaft rod (802) is provided with an impeller (803), the bottom end of the shaft rod (802) extends to the bottom of the filter plate (804), and the bottom end of the shaft rod (802) is fixedly provided with a scraper (805) which is attached to the bottom surface of the filter plate (804).

6. The pumped hydro and compressed air energy storage integrated device of claim 1, wherein: The sludge collecting mechanism (22) comprises a collecting box (2201), a guide groove (2202), an extension pipe (2203), an on-off valve (2204) and a cleaning port (2205), the collecting box (2201) is located between the two groups of transfer tanks (5), the guide groove (2202) is arranged on the top of the sliding plate (19), the bottom of the guide groove (2202) is provided with the extension pipe (2203) which is connected to the collecting box (2201), the bottom end of the extension pipe (2203) is provided with the on-off valve (2204), and the side edges of the collecting box (2201) are provided with the cleaning ports (2205).

7. The pumped hydro and compressed air energy storage integrated device of claim 6, wherein: The cleaning port (2205) is provided with a transparent window, and the transparent window is made of transparent acrylic material.

8. The pumped hydro and compressed air energy storage integrated device of claim 6, wherein: The guide groove (2202) is in the shape of a funnel, and the bottom end of the guide groove (2202) is offset to one side.

9. The pumped hydro and compressed air energy storage integrated device of claim 1, wherein: The outer circumferential surface of the sliding plate (19) is provided with a sealing ring which is attached to the inner wall of the transfer tank (5).

10. A method of using a pumped hydro and compressed air energy storage integrated device based on the pumped hydro and compressed air energy storage integrated device according to claim 9, characterized in that, The method comprises the following steps: Step 1: during the low load period, the water pump (6) and the air pump (13) are started, the water pump (6) and the air pump (13) respectively inject water and input gas into different transfer tanks (5), during the process of water injection or gas input, the hydraulic pressure or air pressure is used to apply a pushing force to the trapezoidal shutter (1805) which blocks the inlet (1803) in the initial state, so as to block the discharge port (1804) on the side of the trapezoidal shutter (1805), the injected water or gas will not be directly discharged from the discharge port (1804), and the water injection controls the downward movement of the sliding plate (19), and the gas input controls the upward movement of the sliding plate (19); Step 2: when one group of transfer tanks (5) is in the process of water injection, the trapezoidal shutter (1805) in the single-pipe conduction mechanism (18) at the bottom of the transfer tank (5) is in the reset state under the elastic force of the reset spring (1806), the second shunt pipe (16) below the transfer tank (5) is blocked, and the bottom gas supply pipe (17) is in the conduction state, the water pressure is used to squeeze the gas stored in the bottom of the transfer tank (5) into the inside of the salt cave (3), until the gas is completely discharged, and after the sliding plate (19) is lowered to the bottom, the second control switch (21) is pressed, the second three-way valve (15) is adjusted, at this time, the gas supply in the other transfer tank (5) is completed, the inside of the transfer tank (5) is filled with gas, and the air pump (13) discharges the gas to the inside of the transfer tank (5) which has completed the gas discharge; Step 3: During the process of injecting the gas source into the inside of the middle transfer tank (5), the trapezoidal shutter (1805) in the single tube conducting mechanism (18) on the top of the middle transfer tank (5) is in the reset state under the elastic force of the reset spring (1806), the first shunt pipe (11) on the top of the middle transfer tank (5) is in the blocking state, and the drain pipe (12) is in the conducting state. The slide plate (19) in the middle transfer tank (5) is pushed upward by the gas pressure, and the water source on the top is transported to the inside of the upper reservoir (2) through the drain pipe (12). When the slide plate (19) moves to the top, the first control switch (20) is pressed, and the first three-way regulating valve (10) is adjusted. At this time, the water transportation in the other middle transfer tank (5) is completed, the inside is full of water source, and the water pump (6) discharges the water source to the middle transfer tank (5) where the water source is discharged. Step 4: During the process of pumping the water source by the water pump (7), the filter plate (804) is used for filtering, and the rotation of the water flow control impeller (803) is controlled. The rotation of the impeller (803) drives the scraper (805) to rotate, and the bottom of the filter plate (804) is cleaned. During the process of the slide plate (19) sliding up and down, the sludge adhered to the inside of the middle transfer tank (5) will be scraped off to the inside of the guide groove (2202), and then enters the collecting box (2201) through the telescopic pipe (2203) to be stored, so as to be collected and treated.

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