Optimized power generation system using combined hydraulic equipment

Abstract

The invention discloses an optimized power generation system using combined hydraulic equipment, which relates to the technical field of power generation systems, and comprises a power source, a combined hydraulic water pump, an energy accumulator, a synchronous multi-way reversing valve, a plurality of groups of hydraulic power crankshafts, a transmission and a generator which are in transmission connection in sequence, a continuous and stable hydraulic oil flow is formed by adopting the design of the combined hydraulic water pump; in cooperation with the buffering and pressure stabilizing effects of the energy accumulator, pressure fluctuation is effectively counteracted, and stable hydraulic power input is provided for a follow-up system; the synchronous multi-way reversing valve is provided with three oil cylinder sets, each oil cylinder set comprises an oil inlet oil cylinder and an oil return oil cylinder, an included angle of 120 degrees is formed between every two adjacent cams, an included angle of 180 degrees is formed between every two corresponding cams of the two synchronous shafts, and alternate oil inlet and oil return actions of the three oil cylinder sets are achieved. The hydraulic push rod sets spaced by 120 degrees in the circumferential direction are matched to push the rotating plate and the circular plate to continuously rotate, the problem that power output of a traditional system is interrupted is solved, and constant-speed continuous mechanical kinetic energy is provided for a generator.

Description

Technical Field

[0001] This invention relates to the field of power generation system technology, specifically to an optimized power generation system utilizing combined hydraulic equipment. Background Technology

[0002] In the field of existing power generation technology, hydraulic power generation systems are widely used in various power scenarios due to their characteristics such as smooth power transmission and strong load-bearing capacity. However, traditional hydraulic power generation systems still have many technical pain points: (1) Traditional hydraulic pumps mostly adopt single pump or non-cooperative multi-pump structure, and the oil suction and discharge actions are not synchronized, resulting in large fluctuations in hydraulic oil pressure, which directly affects the stability of subsequent power conversion and easily causes fluctuations in power generation efficiency; (2) The cylinder group of conventional reversing valve has insufficient coordination, and multiple actuators are difficult to achieve seamless alternation, resulting in gaps in mechanical kinetic energy output and failure to provide continuous uniform rotational power to the generator; (3) During the conversion of hydraulic energy to mechanical kinetic energy, due to unreasonable push rod layout and crankshaft transmission structure design defects, some energy is lost in the transmission, and the speed adaptability is poor, making it difficult to match the rated speed requirements of the generator. To address the shortcomings of the existing technology, this invention proposes an optimized power generation system utilizing combined hydraulic equipment. Through structural optimization and collaborative design, it achieves stable hydraulic energy output, continuous power transmission, and adaptability to multiple scenarios, thereby improving the overall performance and practicality of the power generation system. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the technical solution provided by the present invention is: an optimized power generation system utilizing combined hydraulic equipment, comprising a power source, a combined hydraulic water pump, an accumulator, a synchronous multi-way directional valve, multiple sets of hydraulic power crankshafts, a transmission, and a generator connected in sequence; The combined hydraulic water pump includes a water pump bracket, a rotating main shaft is rotatably mounted at the center of the water pump bracket, one end of the rotating main shaft extends out of the water pump bracket and is connected to a power source for transmission, multiple plunger pump units are evenly distributed in parallel on the rotating main shaft, the suction port of all the plunger pump units is connected to a suction main pipe, the discharge port of all the plunger pump units is connected to a discharge main pipe, and the suction main pipe and the discharge main pipe are connected to a synchronous multi-way reversing valve through an accumulator; The synchronous multi-way reversing valve includes a valve box. The upper part of the valve box is rotatably connected to a first synchronous shaft and a second synchronous shaft via a support plate. The first synchronous shaft and the second synchronous shaft are arranged in parallel and one end of them is connected by a synchronous wheel assembly. The first and second synchronous shafts are respectively equipped with a first hydraulic cylinder group, a second hydraulic cylinder group, and a third hydraulic cylinder group. Each of the first, second, and third hydraulic cylinder groups includes an inlet cylinder and a return cylinder. The inlet cylinder is connected to the return cylinder through a return oil circuit. The inlet end of the inlet cylinder and the outlet end of the return cylinder are connected to an external hydraulic cylinder assembly to form a circuit. The outlet end of the inlet cylinder is connected to a hydraulic push rod assembly. The first, second, and third hydraulic cylinder groups operate alternately. The hydraulic push rod assembly includes a first hydraulic push rod connected to a first cylinder group, a second hydraulic push rod connected to a second cylinder group, and a third hydraulic push rod connected to a third cylinder group. The first, second, and third hydraulic push rods are circumferentially spaced at 120° intervals, with one end hinged to the same rotating plate and the other end respectively hinged to their mounting positions. The rotating plate is rotatably connected to the outer edge of a circular plate, and the central axis of the circular plate is connected to the generator via a gearbox. Preferably, the plunger pump unit includes a pump body, a plunger that reciprocates linearly within the plunger bore of the pump body, an eccentric wheel fixed on a rotating main shaft, a connecting rod connecting the eccentric wheel and the plunger, and an intake valve located at the pump body intake port and an outlet valve located at the pump body outlet port. Preferably, the hydraulic power crankshaft includes a plurality of cranks hinged to the output main shaft, and a hydraulic power rod is respectively hinged to the other end of the cranks. The other end of the hydraulic power rod is hinged to the same mounting shaft on the top of the crankshaft support frame; the output main shaft is rotatably mounted on the crankshaft support frame. Preferably, the oil inlet cylinder includes a cam, an oil inlet cylinder body, an oil outlet cylinder body, a valve stem, and a valve core. The cam is mounted on a first synchronous shaft. The valve stem extends from the oil outlet cylinder body into the oil inlet cylinder body and connects to the valve core corresponding to the inner wall of the oil inlet cylinder body. The top of the valve stem extends out of the oil outlet cylinder body and contacts the cam. The oil return cylinder has the same structure as the oil inlet cylinder. The oil outlet cylinder body of the oil inlet cylinder is connected to the oil inlet cylinder body of the oil return cylinder through a return oil passage. The oil inlet cylinder body of the oil inlet cylinder is connected to an external cylinder assembly. The oil outlet cylinder body of the oil return cylinder is connected to an external cylinder assembly. A return spring is provided between the bottom of the valve core and the inner wall of the oil inlet cylinder body. Preferably, two adjacent cams on the first and second synchronous shafts are at a 120° angle to each other, and the cams at corresponding positions on the first and second synchronous shafts are at a 180° angle to each other. Preferably, the external cylinder assembly includes a hydraulic cylinder and a hydraulic pump connected to the hydraulic cylinder. The hydraulic cylinder is connected to each return cylinder through a return oil line, and the hydraulic pump is connected to each inlet cylinder through an inlet oil line. Preferably, the synchronous pulley assembly includes synchronous pulleys disposed at the ends of the first synchronous shaft and the second synchronous shaft, the synchronous pulleys being connected by a synchronous belt drive, and the first synchronous shaft being driven by a drive motor. Preferably, the power source is a rotating fan blade. Preferably, the power source is a water turbine. Preferably, the power source is an electric motor. Compared with the prior art, the core advantages of this invention are reflected in the following aspects: (1) The present invention adopts a combined hydraulic pump design, with multiple piston pump units evenly distributed in parallel on the rotating main shaft. The oil suction and discharge actions are coordinated and synchronized to form a continuous and stable hydraulic oil flow. With the buffer and pressure stabilization effect of the accumulator, pressure fluctuations are effectively offset, providing a stable hydraulic power input for the subsequent system and avoiding equipment damage and efficiency reduction caused by pressure fluctuations. (2) The present invention provides a synchronous multi-way reversing valve with three sets of hydraulic cylinders. Each set of hydraulic cylinders includes an oil inlet cylinder and an oil return cylinder. Adjacent cams are at a 120° angle and the corresponding cams of the two synchronous shafts are at a 180° angle, so as to realize the alternating oil inlet and oil return actions of the three sets of hydraulic cylinders. With the hydraulic push rod set with a circumferential interval of 120°, the rotating plate and the circular plate are continuously rotated, which solves the problem of intermittent power output in the traditional system and provides uniform and continuous mechanical kinetic energy for the generator. (3) The hydraulic power crankshaft of the present invention integrates the dispersed oscillating power into the continuous rotational motion of the output main shaft through the coordinated design of multiple sets of cranks and hydraulic power rods, thereby reducing kinetic energy loss; and with the gearbox, it accurately matches the rated speed of the generator, and the overall conversion efficiency is significantly improved compared with the traditional system. (4) The system of the present invention is not limited to a single power source and can be flexibly adapted to various power output mechanisms such as rotating wind blades (wind power), water turbines (hydraulic power), and electric motors (industrial power). It can be applied to multiple scenarios such as wind power generation, hydropower generation, and industrial waste heat power generation without major modifications to the core structure. It has strong versatility and wide application range. Attached Figure Description Figure 1 This is a schematic diagram of an optimized power generation system utilizing combined hydraulic equipment according to the present invention. Figure 2 This is a schematic diagram of the structure of a combined hydraulic water pump in an optimized power generation system utilizing combined hydraulic equipment according to the present invention. Figure 3 This is a schematic diagram of the internal structure of a combined hydraulic water pump in an optimized power generation system utilizing combined hydraulic equipment according to the present invention. Figure 4 This is a schematic diagram of the connecting rod structure in an optimized power generation system utilizing a combined hydraulic device according to the present invention. Figure 5This is a schematic diagram of the structure of a synchronous multi-way directional valve in an optimized power generation system utilizing combined hydraulic equipment according to the present invention. Figure 6 This is a schematic diagram of the external cylinder assembly in an optimized power generation system utilizing combined hydraulic equipment according to the present invention. Figure 7 This is a schematic diagram of the structure of the first, second, and third cylinder groups in an optimized power generation system utilizing combined hydraulic equipment according to the present invention. Figure 8 This is a schematic diagram of the internal structure of the oil inlet cylinder in an optimized power generation system utilizing combined hydraulic equipment according to the present invention. Figure 9 This is a schematic diagram of the structure of a hydraulic power crankshaft in an optimized power generation system utilizing combined hydraulic equipment according to the present invention. In the diagram: A - Power source; B - Combined hydraulic water pump; C - Accumulator; D - Synchronous multi-way directional valve; E - Hydraulic power crankshaft; F - Transmission; G - Generator; 1-Water pump bracket; 2-Rotating spindle; 3-Plunger pump unit; 301-Pump body; 302-Plunger; 303-Eccentric wheel; 304-Connecting rod; 4-Valve box; 5-Support plate; 6-First synchronous shaft; 7-Second synchronous shaft; 8-Synchronous pulley assembly; 801-Synchronous pulley; 802-Synchronous belt; 803-Drive motor; 9-First cylinder group; 10-Second cylinder group; 11-Third cylinder group; 12-Inlet cylinder; 1201-Cam; 1202-Inlet cylinder body; 1203-Outlet cylinder body; 1204-Valve stem; 205-Valve core; 1206-Return spring; 13-Return oil cylinder; 14-Return oil circuit; 15-External cylinder assembly; 1501-Hydraulic cylinder; 1502-Hydraulic pump; 1503-Return oil line; 1504-Inlet oil line; 16-Hydraulic push rod assembly; 1601-First hydraulic push rod; 1602-Second hydraulic push rod; 1603-Third hydraulic push rod; 1604-Rotating plate; 1605-Circular plate; 17-Output spindle; 18-Crank; 19-Hydraulic power rod; 20-Crankshaft support frame; 21-Mounting shaft. Detailed Implementation To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the embodiments of the present invention, "multiple" means at least two. In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances. Example: Combined with appendix Figure 1-9 This embodiment discloses an optimized power generation system utilizing a combined hydraulic device, comprising a power source A, a combined hydraulic water pump B, an accumulator C, a synchronous multi-way directional valve D, multiple sets of hydraulic power crankshafts E, a transmission F, and a generator G connected in sequence. The combined hydraulic water pump B includes a water pump bracket 1, a rotating main shaft 2 is rotatably mounted at the center of the water pump bracket 1, one end of the rotating main shaft 2 extends out of the water pump bracket 1 and is connected to the power source A for transmission. Multiple plunger pump units 3 are evenly distributed in parallel on the rotating main shaft 2. The suction port of all the plunger pump units 3 is connected to a suction main pipe, and the discharge port of all the plunger pump units 3 is connected to a discharge main pipe. The suction main pipe and the discharge main pipe are connected to a synchronous multi-way reversing valve D through an accumulator C. The plunger pump unit 3 includes a pump body 301, a plunger 302 that reciprocates linearly within the plunger 302 hole of the pump body 301, an eccentric wheel 303 fixed on the rotating main shaft 2, a connecting rod 304 connecting the eccentric wheel 303 and the plunger 302, an intake valve located at the intake port of the pump body 301, and a discharge valve located at the outlet port of the pump body 301. The synchronous multi-way reversing valve D includes a valve box 4. The upper part of the valve box 4 is rotatably connected to a first synchronous shaft 6 and a second synchronous shaft 7 via a support plate 5. The first synchronous shaft 6 and the second synchronous shaft 7 are arranged in parallel and one end of them is connected by a synchronous pulley 801 assembly 8. The first synchronous shaft 6 and the second synchronous shaft 7 are respectively equipped with a first hydraulic cylinder group 9, a second hydraulic cylinder group 10, and a third hydraulic cylinder group 11. Each of the first hydraulic cylinder group 9, the second hydraulic cylinder group 10, and the third hydraulic cylinder group 11 includes an oil inlet cylinder 12 and an oil return cylinder 13. The oil inlet cylinder 12 is connected to the oil return cylinder 13 through the oil return passage 14. The oil inlet end of the oil inlet cylinder 12 and the oil outlet end of the oil return cylinder 13 are connected to the external hydraulic cylinder assembly 15 to form a circuit. The oil outlet end of the oil inlet cylinder 12 is connected to the hydraulic push rod assembly 16. The first hydraulic cylinder group 9, the second hydraulic cylinder group 10, and the third hydraulic cylinder group 11 operate alternately. The hydraulic push rod assembly 16 includes a first hydraulic push rod 1601 connected to the first cylinder assembly 9, a second hydraulic push rod 1602 connected to the second cylinder assembly 10, and a third hydraulic push rod 1603 connected to the third cylinder assembly 11. The first hydraulic push rod 1601, the second hydraulic push rod 1602, and the third hydraulic push rod 1603 are circumferentially spaced at 120° intervals. One end of each push rod is hinged to the same rotating plate 1604, and the other end is respectively hinged to its mounting position. The rotating plate 1604 is rotatably connected to the outer edge of a circular plate 1605. The central axis of the circular plate 1605 is connected to the generator G via a transmission F. The oil inlet cylinder 12 includes a cam 1201, an oil inlet cylinder body 1202, an oil outlet cylinder body 1203, a valve stem 1204, and a valve core 1205. The cam 1201 is mounted on the first synchronous shaft 6. The valve stem 1204 extends from the oil outlet cylinder body 1203 into the oil inlet cylinder body 1202 and connects to the valve core 1205 corresponding to the inner wall of the oil inlet cylinder body 1202. The top of the valve stem 1204 extends out of the oil outlet cylinder body 1203 and contacts the cam 1201. The return oil cylinder 13 and the inlet oil cylinder 12 have the same structure. The outlet cylinder body 1203 of the inlet oil cylinder 12 is connected to the inlet cylinder body 1202 of the return oil cylinder 13 through the return oil passage 14. The inlet cylinder body 1202 of the inlet oil cylinder 12 is connected to the external cylinder assembly 15. The outlet cylinder body 1203 of the return oil cylinder 13 is connected to the external cylinder assembly 15. A return spring 1206 is provided between the bottom of the valve core 1205 and the inner wall of the inlet cylinder body 1202. The two adjacent cams 1201 on the first synchronous shaft 6 and the second synchronous shaft 7 form a 120° angle, and the cams 1201 at corresponding positions on the first synchronous shaft 6 and the second synchronous shaft 7 form a 180° angle. The external cylinder assembly 15 includes a hydraulic cylinder 1501 and a hydraulic pump 1502 connected to the hydraulic cylinder 1501. The hydraulic cylinder 1501 is connected to each return cylinder 13 through a return oil line 1503, and the hydraulic pump 1502 is connected to each inlet cylinder 12 through an inlet oil line 1504. The synchronous pulley 801 assembly 8 includes synchronous pulleys 801 disposed at the ends of the first synchronous shaft 6 and the second synchronous shaft 7. The synchronous pulleys 801 are connected by a synchronous belt 802. The first synchronous shaft 6 is driven by a drive motor 803. The hydraulic power crankshaft E includes multiple cranks 18 hinged to the output main shaft 17. Each crank 18 has a hydraulic power rod 19 hinged to its other end, and the other end of each hydraulic power rod 19 is hinged to the same mounting shaft 21 on the top of the crankshaft support frame 20. The output main shaft 17 is rotatably mounted on the crankshaft support frame 20. The output main shaft 17 of the hydraulic power crankshaft is sequentially connected to the subsequent gearbox and generator. The continuous rotational power output by the output main shaft 17 is speed-adjusted by the gearbox according to the generator's rated speed requirements. The stabilized rotational power after speed adjustment drives the generator, ultimately achieving an efficient conversion of mechanical energy into electrical energy. In some embodiments, the power source A is a rotating fan blade. In some embodiments, the power source A is a water turbine. In some embodiments, the power source A is an electric motor. In some embodiments, the power source A may also be other power output mechanisms, and this application does not impose any restrictions. In practice, the specific process of this power generation system is as follows: (1) Start-up and power transmission of power source A After the system is started, power source A outputs rotational power, which is directly connected to the rotating spindle 2 of the combined hydraulic water pump B, driving the rotating spindle 2 to rotate stably on the water pump bracket 1. (2) Hydraulic energy conversion of combined hydraulic water pump B When the rotating spindle 2 rotates, multiple piston pump units 3, which are evenly distributed parallel to each other on its surface, work synchronously. Specifically, the eccentric wheel 303 inside the piston pump unit 3 rotates with the rotating spindle 2 and drives the piston 302 to reciprocate linearly within the piston 302 hole of the pump body 301 via the connecting rod 304. When the piston 302 moves outward, a negative pressure is formed inside the pump body 301, the suction valve opens, and hydraulic oil is drawn into the piston pump unit 3 through the suction manifold. When the piston 302 moves inward, the pressure inside the pump body 301 increases, the discharge valve opens, and the hydraulic oil is discharged through the discharge manifold. The suction and discharge actions of all piston pump units 3 are coordinated to form a continuous and stable hydraulic oil flow. The hydraulic oil is transported to the accumulator C through pipelines. The accumulator C buffers and stabilizes the pressure of the hydraulic oil to avoid pressure fluctuations affecting the operation of subsequent systems. (3) Directional delivery and distribution of hydraulic oil The hydraulic oil, after being stabilized by the accumulator C, is distributed to the corresponding cylinder assembly of the synchronous multi-way directional valve D. (4) Mechanical kinetic energy conversion of synchronous multi-way directional valve D (4.1) Synchronous shaft drive and linkage After the drive motor 803 starts, it drives the first synchronous shaft 6 to rotate. The first synchronous shaft 6 achieves synchronous transmission with the second synchronous shaft 7 through the synchronous wheel 801 assembly 8 at the end. The cams 1201 at the corresponding positions of the first synchronous shaft 6 and the second synchronous shaft 7 form a 180° angle to ensure that the two sets of shafts move in a coordinated and opposite direction. (4.2) Alternating action of the hydraulic cylinder assembly The first hydraulic cylinder group 9, the second hydraulic cylinder group 10, and the third hydraulic cylinder group 11 on the first synchronous shaft 6 and the second synchronous shaft 7 rotate with the synchronous shaft to achieve alternating actions: The cam 1201 of the oil inlet cylinder 12 rotates with the synchronous shaft, squeezing the top of the valve stem 1204, driving the valve stem 1204 to move the valve core 1205 downward, opening the oil inlet channel of the oil inlet cylinder 12, and the hydraulic oil from the synchronous multi-way directional valve D enters the oil inlet cylinder 12 through the oil inlet pipe 1504 of the external cylinder assembly 15. The hydraulic oil pressure in the inlet cylinder 12 increases, pushing the corresponding push rod of the hydraulic push rod assembly 16 to move. At the same time, the hydraulic oil in the return cylinder 13 flows back to the inlet cylinder 12 through the return oil passage 14, and the cam 1201 of the return cylinder 13 moves in coordination with the inlet cylinder 12 to ensure smooth oil circulation. Since the two adjacent cams 1201 on the first synchronous shaft 6 and the second synchronous shaft 7 are at a 120° angle, the inlet and return oil movements of the three sets of cylinders are alternated in sequence, with uninterrupted power output. (4.3) Linkage between hydraulic push rod and rotating plate 1604 Each set of hydraulic cylinders drives one hydraulic push rod. The three push rods are hinged to the same rotating plate 1604 at a circumferential interval of 120°. When the hydraulic cylinders move alternately, the three hydraulic push rods push the rotating plate 1604 to make a circular motion in sequence. The outer edge of the rotating plate 1604 is rotatably connected to the circular plate 1605, which drives the circular plate 1605 to rotate synchronously, realizing the conversion of hydraulic energy into mechanical rotational kinetic energy. (5) Generator G generates electricity The output shaft of the circular plate 1605 rotates synchronously with the output main shaft 17 of the synchronous multi-way directional valve D. The coordinated oscillation of multiple cranks of the synchronous multi-way directional valve D is superimposed and integrated into the continuous and uniform rotational motion of the output main shaft. The output main shaft 17 is connected to the transmission F. The transmission F adjusts the rotational speed of the circular plate 1605 according to the rated speed requirement of the generator G, and transmits the rotational power of the stable speed to the generator G. The generator G converts mechanical kinetic energy into electrical energy to complete the entire power generation process. All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An optimized power generation system utilizing a combined hydraulic device, characterized in that, It includes a power source (A), a combined hydraulic water pump (B), an accumulator (C), a synchronous multi-way directional valve (D), multiple sets of hydraulic power crankshafts (E), a transmission (F), and a generator (G) connected in sequence. The combined hydraulic water pump (B) includes a water pump bracket (1), a rotating spindle (2) is rotatably mounted at the center of the water pump bracket (1), one end of the rotating spindle (2) extends out of the water pump bracket (1) and is connected to the power source (A) for transmission. Multiple plunger pump units (3) are evenly distributed in parallel on the rotating spindle (2). The suction port of all the plunger pump units (3) is connected to a suction manifold, and the discharge port of all the plunger pump units (3) is connected to a discharge manifold. The suction manifold and the discharge manifold are connected to a synchronous multi-way directional valve (D) through an accumulator (C). The synchronous multi-way reversing valve (D) includes a valve box (4). The upper part of the valve box (4) is rotatably connected to a first synchronous shaft (6) and a second synchronous shaft (7) via a support plate (5). The first synchronous shaft (6) and the second synchronous shaft (7) are arranged in parallel and one end of them is connected by a synchronous wheel assembly (8). The first synchronous shaft (6) and the second synchronous shaft (7) are respectively provided with a first hydraulic cylinder group (9), a second hydraulic cylinder group (10), and a third hydraulic cylinder group (11). Each of the first hydraulic cylinder group (9), the second hydraulic cylinder group (10), and the third hydraulic cylinder group (11) includes an oil inlet cylinder (12) and an oil return cylinder (13). The oil inlet cylinder (12) is connected to the oil return cylinder (13) through the oil return passage (14). The oil inlet end of the oil inlet cylinder (12) and the oil outlet end of the oil return cylinder (13) are connected to the external hydraulic cylinder assembly (15) to form a circuit. The oil outlet end of the oil inlet cylinder (12) is connected to the hydraulic push rod assembly (16). The first hydraulic cylinder group (9), the second hydraulic cylinder group (10), and the third hydraulic cylinder group (11) operate alternately. The hydraulic push rod assembly (16) includes a first hydraulic push rod (1601) connected to the first cylinder assembly (9), a second hydraulic push rod (1602) connected to the second cylinder assembly (10), and a third hydraulic push rod (1603) connected to the third cylinder assembly (11). The first hydraulic push rod (1601), the second hydraulic push rod (1602), and the third hydraulic push rod (1603) are circumferentially spaced at 120° intervals. One end of each push rod is hinged to the same rotating plate (1604), and the other end is respectively hinged to its mounting position. The rotating plate (1604) is rotatably connected to the outer edge of a circular plate (1605). The central axis of the circular plate (1605) is connected to the generator (G) via a transmission (F).

2. An optimized power generation system utilizing a combined hydraulic device according to claim 1, characterized in that, The plunger pump unit (3) includes a pump body (301), a plunger (302) that reciprocates linearly within the plunger hole of the pump body (301), an eccentric wheel (303) fixed on the rotating spindle (2), a connecting rod (304) connecting the eccentric wheel (303) and the plunger (302), and a suction valve located at the suction port of the pump body (301) and a discharge valve located at the discharge port of the pump body (301).

3. An optimized power generation system utilizing a combined hydraulic device according to claim 1, characterized in that, The hydraulic power crankshaft (E) includes a plurality of cranks (18) hinged to the output main shaft (17), and the other end of each crank (18) is respectively hinged to a hydraulic power rod (19). The other end of each hydraulic power rod (19) is hinged to the same mounting shaft (21) on the top of the crankshaft support frame (20). The output main shaft (17) is rotatably mounted on the crankshaft support frame (20).

4. An optimized power generation system utilizing a combined hydraulic device according to claim 1, characterized in that, The oil inlet cylinder (12) includes a cam (1201), an oil inlet cylinder body (1202), an oil outlet cylinder body (1203), a valve stem (1204), and a valve core (1205). The cam (1201) is mounted on the first synchronous shaft (6). The valve stem (1204) extends from the oil outlet cylinder body (1203) into the oil inlet cylinder body (1202) and connects to the valve core (1205) corresponding to the inner wall of the oil inlet cylinder body (1202). The top of the valve stem (1204) extends out of the oil outlet cylinder body (1203) and contacts the cam (1201). The return oil cylinder (13) and the inlet oil cylinder (12) have the same structure. The outlet cylinder body (1203) of the inlet oil cylinder (12) is connected to the inlet cylinder body (1202) of the return oil cylinder (13) through the return oil passage (14). The inlet cylinder body (1202) of the inlet oil cylinder (12) is connected to the external oil cylinder assembly (15). The outlet cylinder body (1203) of the return oil cylinder (13) is connected to the external oil cylinder assembly (15). A reset spring (1206) is provided between the bottom of the valve core (1205) and the inner wall of the inlet cylinder body (1202).

5. An optimized power generation system utilizing a combined hydraulic device according to claim 4, characterized in that, The two adjacent cams (1201) on the first synchronous shaft (6) and the second synchronous shaft (7) form a 120° angle, and the cams (1201) at corresponding positions on the first synchronous shaft (6) and the second synchronous shaft (7) form a 180° angle.

6. An optimized power generation system utilizing a combined hydraulic device according to claim 4, characterized in that, The external cylinder assembly (15) includes a hydraulic cylinder (1501) and a hydraulic pump (1502) connected to the hydraulic cylinder (1501). The hydraulic cylinder (1501) is connected to each return cylinder (13) through a return oil line (1503), and the hydraulic pump (1502) is connected to each inlet cylinder (12) through an inlet oil line (1504).

7. An optimized power generation system utilizing a combined hydraulic device according to claim 4, characterized in that, The synchronous pulley assembly (8) includes synchronous pulleys (801) disposed at the ends of the first synchronous shaft (6) and the second synchronous shaft (7). The synchronous pulleys (801) are connected by a synchronous belt (802). The first synchronous shaft (6) is driven by a drive motor (803).

8. An optimized power generation system utilizing a combined hydraulic device according to claim 1, characterized in that, The power source (A) is a rotating fan blade.

9. An optimized power generation system utilizing a combined hydraulic device according to claim 1, characterized in that, The power source (A) is a water turbine.

10. An optimized power generation system utilizing a combined hydraulic device according to claim 1, characterized in that, The power source (A) is an electric motor.

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