A non-fossil energy consumption high pressure fluid power generation system

Abstract

The application discloses a kind of fossil energy consumption high pressure fluid power generation system, including reservoir and two groups of negative pressure water storage tank connected above the reservoir, water supply pipe is connected between reservoir and the top of negative pressure water storage tank;It further includes two groups of high pressure tank, the air cavity of two groups of high pressure tank is connected by pipeline in series, and is communicated by pipeline with the bottom of negative pressure water storage tank, and composite anti-reflux device is connected on its pipeline, the bottom of high pressure tank is connected with pressure water supply pipe, the end of pressure water supply pipe is connected with fluid rotating mechanism, high frequency electromagnetic induction heater is embedded in the inside of high pressure tank;The side of fluid rotating mechanism is connected with low-speed synchronous grid-connected power generation unit.The potential energy difference formed between high pressure tank and negative pressure water storage tank is used to inject water into the lower part of high pressure tank, so that water flows easily from negative pressure water storage tank to the bottom of high pressure tank, and the high pressure tank sprays pressure water to wind-water ball through the nozzle, and the wind-water ball drives the low-speed synchronous grid-connected power generation unit to generate electricity with large inertia.

Description

Technical Field

[0001] This invention relates to the field of power generation system technology, and in particular to a fossil-free high-pressure fluid power generation system. Background Technology

[0002] Current industrial power generation primarily relies on traditional thermal power, diesel generators, and gas-fired generator sets, all of which are highly dependent on fossil fuels such as coal, diesel, and natural gas. Fuel costs continue to rise, carbon emissions are high, and smoke and noise pollution are significant, posing substantial carbon tariff barriers for export-oriented manufacturing enterprises. Furthermore, some new energy sources, such as wind and solar power, exhibit strong volatility and intermittency, lacking the grid inertia and voltage frequency support capabilities to operate independently on isolated grids. This makes them unable to meet the uninterrupted power supply requirements of high-energy-consuming continuous production processes in some enterprises, such as cable drawing, extrusion, and stranding. Summary of the Invention

[0003] This invention addresses the technical problem of industrial power generation relying on fossil fuels such as coal, oil, and gas. It provides a fossil-free high-pressure fluid power generation system, comprising a water storage tank and two sets of negative-pressure water storage tanks connected above the tank. A water supply pipe connects the top of the water storage tank and the negative-pressure water storage tanks, and a water pump is installed on the water supply pipe. The system also includes two sets of high-pressure tanks, whose air chambers are connected in series via pipes and communicate with the bottom of the negative-pressure water storage tanks via pipes. A composite anti-backflow device is connected to the pipes. A pressure water supply pipe is connected to the bottom of each high-pressure tank, and a fluid rotation mechanism is connected to the end of the pressure water supply pipe. A high-frequency electromagnetic induction heater is embedded inside each high-pressure tank. A low-speed synchronous grid-connected power generation unit is connected to one side of the fluid rotation mechanism. The fluid rotation mechanism generates large-inertia mechanical energy, which is then converted into electrical energy by the low-speed synchronous grid-connected power generation unit.

[0004] Preferably, in the above technical solution, the fluid rotation mechanism includes a support base and a vortex ball movably connected to the support base, and a low-speed synchronous grid-connected power generation unit is connected to one side of the vortex ball.

[0005] Preferably, in the above technical solution, the composite anti-backflow device includes a 10-stage axisymmetric Tesla valve integrated valve, a check valve, a pressure-linked shut-off valve, and a one-way valve, which are connected in series in sequence. The internal flow channel of the 10-stage axisymmetric Tesla valve integrated valve has a 10-stage symmetrical bifurcated structure.

[0006] Preferably, in the above technical solution, a drive shaft is fixedly connected to the center of the feng shui ball, and the drive shaft is coaxially connected to the input shaft of the low-speed synchronous grid power generation unit.

[0007] Preferably, in the above technical solution, the top of the support base is provided with a support arc surface, the support arc surface is annular, and its arc surface matches the spherical surface of the feng shui ball.

[0008] Preferably, in the above technical solution, the outer side of the supporting arc surface is provided with a water-receiving groove with an annular structure, and a water return pipe is provided on one side of the supporting base. One end of the water return pipe is connected to the water-receiving groove, and the other end is connected to the top of the water storage tank.

[0009] Preferably, in the above technical solution, both the supporting arc surface and the spherical surface of the feng shui ball are coated with a hydrogen-free DLC diamond-like carbon coating, and the coating thickness is ≥5μm.

[0010] Preferably, in the above technical solution, the middle of the support base is a hollow structure, and a nozzle connected to the end of the pressure water supply pipe is provided inside. The nozzle is obliquely arranged and tangent to the spherical surface of the water sphere.

[0011] Preferably, in the above technical solution, a filter is connected to the bottom of the water supply pipe.

[0012] Preferably, in the above technical solution, the iron cylinder of the high-frequency electromagnetic induction heater is sealed and welded to the high-pressure tank, and the high-frequency electromagnetic induction heater is placed in the embedded iron cylinder, completely isolated from the high-pressure environment.

[0013] Compared with existing technologies, this invention has the following advantages: This invention utilizes the potential energy difference between a high-pressure tank and a negative-pressure water storage tank to inject water into the lower part of the high-pressure tank. In the pipeline connecting the water storage tank and the high-pressure tank, water flows easily from the negative-pressure water storage tank to the bottom of the high-pressure tank via a composite anti-backflow device, merging with the water in the high-pressure tank. Under the gas pressure of the high-pressure tank, the pressurized water is sprayed through nozzles onto the water sphere, driving the low-speed synchronous grid-connected power generation unit to generate electricity. When the water level in the negative-pressure water storage tank decreases, a vacuum negative pressure is created to automatically absorb and replenish water, achieving a continuous, self-sustaining, and stable working state. No large electrical appliances continuously consume high energy or electricity, achieving the effects of initial preset potential energy and pressure difference, year-round low energy consumption, self-sustaining through fluid potential energy and pressure difference, fluid circulation supply, and high-pressure fluid power generation.

[0014] This system can not only achieve fossil-free steady-state power generation, but also continuously supply high-pressure fluid without the need for a high-power electric pump, relying on its own pressure self-sustaining and negative pressure self-priming principle. It is widely applicable to engineering operation scenarios such as mine washing, underground fluid transportation, factory high-pressure cleaning, high-pressure water jetting, industrial park non-powered water supply, and chemical spraying. It is multi-functional and has a wider range of applications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a fossil-free high-pressure fluid power generation system according to the present invention; Figure 2 This is a cross-sectional schematic diagram of the fluid rotation mechanism in a fossil-free high-pressure fluid power generation system according to the present invention; Figure 3 This is a water circulation topology diagram of a fossil-free high-pressure fluid power generation system according to the present invention.

[0016] Key reference numerals: 1-Water storage tank, 2-Negative pressure water storage tank, 3-High pressure tank, 4-Fluid rotation mechanism, 5-Low-speed synchronous grid power generation unit, 6-Composite anti-backflow device, 11-Water supply pipe, 12-Filter, 13-Water pump, 15-Return water pipe, 33-High-frequency electromagnetic induction heater, 36-Pressure water supply pipe, 37-Spray nozzle, 41-Wind and water ball, 42-Support base, 43-Water receiving trough, 45-Support arc surface, 46-DLC friction pair coating, 51-Drive shaft, 61-10-stage axisymmetric Tesla valve integrated valve, 62-Check valve, 63-Pressure linkage shut-off valve, 64-One-way valve. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: like Figure 1-3 As shown, this invention relates to a fossil-free high-pressure fluid power generation system, comprising a water storage tank 1 and two sets of negative pressure water storage tanks 2 connected above the water storage tank 1. A water supply pipe 11 connects the top of the water storage tank 1 and the negative pressure water storage tanks 2, and a water pump 13 is installed on the water supply pipe 11. The negative pressure water storage tanks 2 are made of Q345R material, and the steady-state operating negative pressure range of the negative pressure water storage tanks 2 is -0.05 to -0.08 MPa. Each set of negative pressure water storage tanks 2 is equipped with a vacuum gauge, a vacuum breaking valve, a level gauge, and a negative pressure sensor to form a constant negative pressure suction environment, which forms a stable pressure difference driving force with the high-pressure tank 3. A filter 12 is connected to the bottom of the water supply pipe 11. The purpose of the filter 12 is to filter out scale and other impurities in the water storage tank 1, keeping the impurities in the water tank and preventing them from circulating back into the tank, which would adversely affect the pressure and potential energy effect.

[0019] It also includes two sets of high-pressure tanks 3. The gas chambers of the two sets of high-pressure tanks 3 are connected in series through pipes and connected to the bottom of the negative pressure water storage tank 2 through pipes. A composite anti-backflow device 6 is connected to the pipes. A pressure water supply pipe 36 is connected to the bottom of the high-pressure tank 3. A fluid rotation mechanism 4 is connected to the end of the pressure water supply pipe 36. A high-frequency electromagnetic induction heater 33 is embedded inside the high-pressure tank 3. The high-frequency electromagnetic induction heater 33 is a crude copper induction coil completely encapsulated in a sealed cylindrical iron cylinder. The iron cylinder is completely isolated from the high-pressure gas and liquid inside the tank. When the high-frequency electromagnetic field passes through the iron cylinder wall, it directly heats the iron cylinder wall itself, and then heats the high-pressure gas at the top of the tank through thermal radiation or thermal conduction. This method avoids the coil from contacting the high-pressure gas and liquid, thus preventing corrosion and high-pressure damage; it also allows the heating source to be directly in the gas area, minimizing heat loss and balancing safety and efficient pressure replenishment. The iron cylinder of the high-frequency electromagnetic induction heater 33 is made of Cr 25 Ni 20The heat-resistant steel possesses magnetic conductivity, high-temperature resistance, and high-pressure corrosion resistance, enabling it to withstand long-term internal pressure and heating temperatures without deformation or leakage. The iron cylinder is sealed and welded to the high-pressure tank 3. The high-frequency electromagnetic induction heater 33 is fixed to the tank body with screws and nuts at the connection point with the high-pressure tank 3. During routine inspection and maintenance, disassembly and replacement can be completed from outside the tank without entering, completely eliminating the impact of the high-pressure environment on the electromagnetic heater and related connecting parts and seals under the heater-in-place method, thus improving the service life of components and reducing maintenance difficulty and costs. The high-pressure tank 3 is made of Q345R, with a design pressure of 2.0MPa and a normal working pressure of 1.4MPa. The top and sides of the high-pressure tank 3 integrate manholes, safety valves, pressure transmitters, drain valves, and vent valves, all of which are standard components for pressure vessels. The manhole is used for maintenance access to the tank. The safety valve automatically releases pressure in case of overpressure. A pressure transmitter collects the tank pressure in real time. A drain valve periodically discharges impurities from the bottom of the tank. A vent valve is used for maintenance pressure relief and venting. These are standard auxiliary structures for pressure vessels. Negative pressure storage tank 2 is located next to the water storage tank or above the water surface, 2-3 meters above the full water level of the storage tank. The tank group is symmetrically arranged next to the high-pressure tank group. A vacuum gauge, vacuum breaking valve, level gauge, negative pressure sensor, and backup booster pump are installed on the side of the tank. The vacuum gauge displays the negative pressure value in real time. The vacuum breaking valve automatically breaks the negative pressure to protect the tank in case of an anomaly. The level gauge monitors the liquid level of the medium inside the tank, and the negative pressure sensor collects negative pressure data in real time and connects it to the control system. In this embodiment, a pressure-stabilizing water tower can be installed at the highest point of the system. It is connected to the highest point of the main circulation pipeline via a downward pressure-stabilizing pipeline, using gravity to stabilize the liquid level reference of the entire closed circulation system. The pressure-stabilizing water tower integrates a support frame, ladder, corrosion protection, and lightning protection to provide constant liquid level and circulating pressure stabilization conditions for the entire system, achieving automatic pressure complementarity and balance among multiple tanks. The backup booster pump automatically starts and stops when the high-frequency electromagnetic induction heater 33 fails, resulting in insufficient pressure and output flow in the high-pressure tank 3. It works in conjunction with the negative pressure storage tank to maintain the system pressure threshold, ensuring continuous water supply. Its control logic is embedded in the main control PLC, triggered by a dual-signal interlock between the negative pressure sensor and the level gauge, with a response time ≤3 seconds and a head adapted to the maximum pressure loss requirements of the main pipeline.

[0020] A low-speed synchronous grid-connected power generation unit 5 is connected to one side of the fluid rotation mechanism 4. The mechanical energy of the fluid rotation mechanism 4 is converted into electrical energy by the low-speed synchronous grid-connected power generation unit 5. The fluid rotation mechanism 4 includes a support base 42 and a vortex ball 41 movably connected to the support base 42. The low-speed synchronous grid-connected power generation unit 5 is connected to one side of the vortex ball 41. A drive shaft 51 is fixedly connected to the center of the vortex ball 41, and the drive shaft 51 is coaxially connected to the input shaft of the low-speed synchronous grid-connected power generation unit 5. The top of the support base 42 is provided with a support arc surface 45, which has a ring structure and its arc surface matches the spherical surface of the vortex ball 41. The fluid rotation mechanism 4 consists of a high-precision vortex ball 41 working body, a friction pair of the support arc surface 45, and a low-speed, high-torque main shaft sealed transmission assembly. It is a five-axis integrated precision-machined 304 stainless steel forging. The upper center of the vortex ball 41 features an integrated drive shaft 51, which is coaxially connected to the input shaft of the 2.5MW low-speed synchronous grid-connected generator unit 5 via a rigid coupling and a vibration-damping flange. A centrally located direct-drive structure isolates the fluid chamber from the generator chamber, transmitting high torque while preventing media leakage into the generator through the main shaft sealing assembly. The low-speed synchronous grid-connected generator unit 5 includes a 2.5MW low-speed synchronous grid-connected generator, a 2.5MW grid-connected PCS converter, and an EMS energy management SCADA monitoring system. The output is 380V / 50Hz, supporting V / F voltage and frequency stabilization, millisecond-level switching between off-grid and grid-connected modes, and black-start operation. This system connects the generator's output power cable to the input terminal of the PCS grid converter. After the PCS completes rectification, inversion, and V / F voltage and frequency stabilization, the power is split into two paths: one directly supplies the industrial load of the plant area, and the other has a reserved grid connection interface. The EMS system collects pressure, liquid level, valve status, and power generation parameters throughout the plant via signal lines to achieve logic interlocking, fault early warning, and remote operation and maintenance. It also links with intelligent shut-off valves to automatically shut off power in case of abnormal pressure. A ring-shaped water-receiving trough 43 is provided on the outer side of the supporting arc surface 45. A return water pipe 15 is provided on one side of the supporting base 42. One end of the return water pipe 15 is connected to the water-receiving trough 43, and the other end is connected to the top of the water storage tank 1. Water sprayed from the nozzle 37 drives the water ball 41 to rotate, and the water then falls into the water-receiving trough 43, where the deactivated water is collected and then flows back to the water storage tank 1 through the return water pipe 15. In this embodiment, the horizontal height of the fluid rotation mechanism 4 is slightly higher than that of the water storage tank 1, allowing the water in the receiving tank 43 to flow naturally into the water storage tank 1 through the return pipe 15 under the action of gravity. The middle of the support base 42 is a hollow structure, and a nozzle 37 connected to the end of the pressure water supply pipe 36 is provided inside. The nozzle 37 is obliquely arranged and tangent to the spherical surface of the water ball 41. The high-speed fluid in the nozzle 37 enters tangentially and impacts the water ball 41 circumferentially, generating a continuous rotational torque to achieve the best effect of driving the water ball 41 to rotate.

[0021] It should be further explained that the composite anti-backflow device 6 includes a 10-stage axisymmetric Tesla valve integrated valve 61, a check valve 62, a pressure-linked shut-off valve 63, and a one-way valve 64, which are connected in series. The internal flow channel of the 10-stage axisymmetric Tesla valve integrated valve 61 has a 10-stage symmetrical bifurcated structure. The 10-stage axisymmetric Tesla valve integrated valve 61 is integrally machined from a 304 stainless steel thick plate, and features a 10-stage axisymmetric reverse energy dissipation flow channel after rough milling, fine machining, and mirror polishing, distinguishing between the forward flow channel and the reverse dissipation flow channel. The 10-stage axisymmetric Tesla valve integrated valve 61 in this system adopts a five-axis integral milling process on a single piece of plate, with no weld seams and no stress concentration, increasing the service life by more than 3 times under high-pressure fluid conditions, while ensuring the symmetry accuracy of the ten-stage flow channel and improving the water hammer suppression effect. The check valve 62 is preferably a PN25 metal fluororubber double-seal check valve. Under normal forward operating conditions, the valve disc remains open, allowing fluid to pass smoothly without additional resistance. When reverse backflow occurs, the valve disc automatically presses against the valve seat sealing surface under reverse pressure, forming a double hard seal to block the flow. The pressure-linked shut-off valve 63 is a pressure-linked intelligent shut-off valve; it automatically shuts off electrically when the pipeline pressure signal exceeds a threshold. The one-way valve 64 absorbs residual pressure fluctuations and acts as a final safety net against backflow. These four components work together to achieve four layers of protection: energy dissipation, sealing, electrical control, and buffering. Through passive energy dissipation, mechanical sealing, electrical shut-off, and end-point buffering, it thoroughly solves industry problems such as high-pressure backflow, negative pressure instability, pipeline water hammer, and valve internal leakage failure.

[0022] Example 2:

[0023] The manufacturing process of Feng Shui Ball 41 is as follows: (1) Blank pretreatment: remove oxide scale and check appearance defects of forging blank, remove surface cracks and sand holes, rough machine the spherical shape, install the shaft head in the center, and leave a 0.8mm fine machining allowance on one side. (2) Constant temperature stress relief aging treatment: keep the blank at 180℃ for 4 hours, cool it naturally with the furnace, eliminate the internal stress of forging + rough machining, and prevent the spherical deformation and the offset of the fit clearance in the later stage. (3) Five-axis linkage precision finishing: close-loop CNC precision grinding of the spherical surface, strictly control the roundness and coaxiality of the spherical surface, and leave a 5μm DLC coating allowance. (4) Mirror polishing: full-area mirror polishing of the friction contact surface, surface roughness Ra≤0.2μm, and reduce static initial friction resistance. (5) Dynamic balance detection and correction: high-speed dynamic balance test machine detection, remove the unbalance, meet the G1 dynamic balance level, and avoid vibration of the unit operation.

[0024] Both the supporting arc surface 45 and the spherical surface of the water-cooling ball 41 are coated with a hydrogen-free DLC diamond-like carbon coating, with a coating thickness ≥ 5 μm. The supporting arc surface 45, the spherical surface of the water-cooling ball 41, and the internal flow channel of the 10-stage axisymmetric Tesla valve integrated valve 61 can all be coated with a hydrogen-free DLC diamond-like carbon coating. The hydrogen-free DLC diamond-like carbon coating has an extremely low coefficient of friction and ultra-high hardness, giving the components ultra-low friction, water erosion resistance, and anti-scaling properties.

[0025] Initially, this system only requires a short-term, low-power water pump to fill the negative pressure storage tank and pre-charge it to a high pressure of 1.5-1.6 MPa upon initial startup; this is a one-time initialization power consumption. During daily operation, the water pump and booster pump do not require continuous power consumption; these devices are in standby and controlled mode, responding to commands from the monitoring system at any time. The initial initial setup only involves the first commissioning, with a total power consumption of approximately 180-260 kWh, representing a one-time cost. Under normal circumstances, the pressure of the low-power water pump or the industrial and domestic water supply in urban areas is sufficient to supply water to buildings 20-30 meters high. This system is specifically designed for urban industrial parks and businesses; the negative pressure storage tank is only 10-12 meters high and can be filled naturally with water. Under these conditions, a water pump is not needed for replenishment. The water pump is designed to replenish water in case the water level in the storage tank is too low under special operating conditions. In subsequent years, water replenishment is achieved through vacuum suction created by the drop in water level within the storage tank, maintaining a self-sustaining state and requiring no further external energy consumption. The system automatically activates pumps and valves to replenish water only when the water level is detected to be too low. In this embodiment, the high-pressure gas pre-filled in the high-pressure tank is a safe inert gas. Water is heavier than gas and is located at the bottom of the high-pressure tank, while the gas is located at the top. Under the influence of gravity, the water in the negative pressure storage tank flows from the negative pressure storage tank to the bottom of the high-pressure tank through the composite anti-backflow device, merging with the water in the high-pressure tank. With the support of the high-pressure gas, the water gains a pressure of 1.4-1.6 MPa and is sprayed onto the water sphere through the output check valve and high-pressure nozzle. The system is in a closed and balanced state before starting operation. During operation, the check valve connecting the high-pressure tank and the water sphere is opened. The ratio of the cross-sectional area of ​​the high-pressure water gun nozzle to the bearing area of ​​the water sphere is tens of times, and the water flow thrust is amplified tens of times, which is sufficient to drive the water sphere weighing several tons or even tens of tons. When the water level in the high-pressure tank decreases, it is replenished by the storage tank. When the water level in the storage tank decreases, a vacuum is created at the top of the storage tank, automatically drawing in water to maintain continuous system operation. Once the system reaches steady-state operation, it becomes self-sustaining thanks to its ingenious pressure conversion design. The negative pressure self-priming circulation replenishment keeps the water pumps, booster pumps, and other electrical components in a standby controlled state, rather than a continuous power-consuming state. The system can operate 24 hours a day, driving a 2.5MW generator to operate at full load throughout the year, generating 21.9 million kWh of electricity. This reduces carbon dioxide emissions by 17,200 tons annually, complying with the "dual carbon" policy and significantly lowering carbon tariff costs for export companies. After deducting its own control, lighting, and instrumentation power consumption, the annual self-consumption is only about 32,000 kWh, resulting in a very large net power supply and negligible self-consumption. It is suitable for various scenarios including industrial parks, export manufacturing enterprises, computing centers, remote mountainous areas, scenic spots, and off-grid power supply in mines.

[0026] This invention utilizes the potential energy difference between a high-pressure tank and a negative-pressure water storage tank to inject water into the lower part of the high-pressure tank. In the pipeline connecting the water storage tank and the high-pressure tank, the water flows easily from the negative-pressure water storage tank to the bottom of the high-pressure tank via a composite anti-backflow device, merging with the water in the high-pressure tank. Under the gas pressure of the high-pressure tank, the high-pressure water is sprayed through nozzles onto a hydroelectric sphere, driving a low-speed synchronous grid-connected power generation unit to generate electricity. When the water level in the negative-pressure water storage tank decreases, a vacuum negative pressure is created, automatically drawing in and replenishing water to achieve continuous, self-sustaining, and stable operation. It eliminates the need for any water pumps, booster pumps, or other electrical appliances that require continuous power, achieving the effects of initial preset potential energy and pressure difference, low energy consumption year-round, self-sustaining operation based on fluid potential energy and pressure difference, fluid circulation supply, and high-pressure fluid power generation.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fossil-free high-pressure fluid power generation system, characterized in that: The system includes a water storage tank (1) and two sets of negative pressure water storage tanks (2) connected above the water storage tank (1). A water supply pipe (11) is connected between the top of the water storage tank (1) and the negative pressure water storage tank (2). A water pump (13) is installed on the water supply pipe (11). The system also includes two sets of high pressure tanks (3). The air chambers of the two sets of high pressure tanks (3) are connected in series through pipes and connected to the bottom of the negative pressure water storage tank (2) through pipes. A composite anti-backflow device (6) is connected to the pipes. A pressure water supply pipe (36) is connected to the bottom of the high pressure tank (3). A fluid rotation mechanism (4) is connected to the end of the pressure water supply pipe (36). A high-frequency electromagnetic induction heater (33) is embedded inside the high pressure tank (3). A low-speed synchronous grid-connected power generation unit (5) is connected to one side of the fluid rotation mechanism (4). The fluid rotation mechanism (4) outputs mechanical energy, and the low-speed synchronous grid-connected power generation unit (5) converts the mechanical energy into electrical energy.

2. The fossil-free high-pressure fluid power generation system according to claim 1, characterized in that: The fluid rotation mechanism (4) includes a support base (42) and a vortex ball (41) movably connected to the support base (42). A low-speed synchronous grid power generation unit (5) is connected to one side of the vortex ball (41).

3. The fossil-free high-pressure fluid power generation system according to claim 1, characterized in that: The composite anti-backflow device (6) includes a 10-stage axisymmetric Tesla valve integrated valve (61), a check valve (62), a pressure linkage shut-off valve (63), and a one-way valve (64), which are connected in series. The internal flow channel of the 10-stage axisymmetric Tesla valve integrated valve (61) is a 10-stage symmetrical bifurcated structure.

4. The fossil-free high-pressure fluid power generation system according to claim 2, characterized in that: The center of the feng shui ball (41) is fixedly connected to a drive shaft (51), and the drive shaft (51) is coaxially connected to the input shaft of the low-speed synchronous grid power generation unit (5).

5. The fossil-free high-pressure fluid power generation system according to claim 4, characterized in that: The top of the support base (42) is provided with a support arc surface (45), which is in the form of a ring structure and its arc surface matches the spherical surface of the feng shui ball (41).

6. The fossil-free high-pressure fluid power generation system according to claim 5, characterized in that: The outer side of the supporting arc surface (45) is provided with a ring-shaped water receiving trough (43), and a return water pipe (15) is provided on one side of the supporting base (42). One end of the return water pipe (15) is connected to the water receiving trough (43), and the other end is connected to the top of the water storage tank (1).

7. The fossil-free high-pressure fluid power generation system according to claim 5, characterized in that: Both the supporting arc surface (45) and the spherical surface of the feng shui ball (41) are coated with hydrogen-free DLC diamond-like carbon coating, and the coating thickness is ≥5μm.

8. The fossil-free high-pressure fluid power generation system according to claim 1, characterized in that: The support base (42) has a hollow structure in the middle, and a nozzle (37) connected to the end of the pressure water supply pipe (36) is provided inside. The nozzle (37) is set at an angle and is tangent to the spherical surface of the water ball (41).

9. The fossil-free high-pressure fluid power generation system according to claim 1, characterized in that: A filter (12) is connected to the bottom of the water supply pipe (11).

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