A pressure energy storage device

Abstract

This utility model discloses a pressure energy storage device, including a top plate, with four corners of the top plate connected to column rails. The lower ends of the column rails are connected to a base plate, and the upper section of the column rails is equipped with a back pressure assembly for auxiliary energy release. A hydraulic energy storage assembly is located at the lower end of the column rails, and a hydraulic control system is located to the left of the column rails. The hydraulic control system is connected to an energy utilization assembly via an oil supply pipe. The hydraulic control system is also connected to the outlet of a hydraulic pump via an oil supply pipe. The hydraulic pump is connected to the output end of a motor via a coupling. This pressure energy storage device can accommodate several or more pressure tops on the same plane, increasing the stroke and extending the energy release time. The four corners of sliding plates one, two, and three slide on the column rails, allowing for stable movement even under stress. Furthermore, the tension force is dispersed towards the column rails, improving the overall load-bearing capacity of the device during energy storage and release.

Description

Technical Field

[0001] This utility model relates to the field of pressure energy storage technology, specifically a pressure energy storage device. Background Technology

[0002] Pressure energy storage is a technology that stores energy in the form of pressure potential energy and releases it into other forms of energy when needed. Pressure energy storage devices can be used to store energy and release it when needed, which is very important in modern energy management and renewable energy applications.

[0003] Currently, when using pressure energy storage devices for energy storage and release, the energy release time is short and cannot be effectively extended according to actual needs. Furthermore, during energy storage and release, the moving parts are subjected to tension forces, which affects the stability of the movement. Therefore, we propose a pressure energy storage device to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a pressure energy storage device to solve the problems mentioned in the background art, such as the short energy release time of current pressure energy storage devices on the market, which cannot effectively extend the energy release time according to actual needs, and the instability of movement caused by the tension force on the moving parts during energy storage and release.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pressure energy storage device, including a top plate, with column rails connected to the four corners of the top plate, a bottom plate connected to the lower end of the column rails, and a back pressure component for auxiliary energy release provided on the upper section of the column rails;

[0006] A hydraulic energy storage component is provided at the lower end of the column rail, and a hydraulic control system is provided on the left side of the column rail. The hydraulic control system is connected to the energy utilization component through an oil supply pipe.

[0007] The hydraulic control system is connected to the hydraulic pump outlet via oil supply pipe four. The hydraulic pump is connected to the output end of the motor via a coupling. The hydraulic pump inlet is connected to the oil storage tank via oil supply pipe five.

[0008] Preferably, the back pressure assembly includes a sliding plate one and a sliding plate two sleeved on the outside of the column rail. Both the sliding plate one and the top plate are equipped with pneumatic cylinders, and a pneumatic push rod is provided inside the pneumatic cylinder.

[0009] Preferably, the side of the pneumatic cylinder is connected to an air inlet port, and a check valve and a pressure gauge are installed on the air inlet port.

[0010] Preferably, the hydraulic energy storage component includes a sliding plate three sleeved on the outside of the column rail. Both the sliding plate three and the base plate are equipped with hydraulic cylinders. A hydraulic push rod is provided inside the hydraulic cylinder. The oil inlet of the hydraulic cylinder is connected to the hydraulic control system through an oil supply pipe two. A valve one is installed at the end of the oil supply pipe two near the hydraulic cylinder. The oil outlet of the hydraulic cylinder is connected to the hydraulic control system through an oil supply pipe three. A valve two is installed at the end of the oil supply pipe three near the hydraulic cylinder.

[0011] Preferably, the energy utilization component includes a hydraulic motor, the oil inlet of which is connected to a hydraulic control system via an oil supply pipe, the hydraulic motor is connected to a generator via a coupling, and the oil outlet of which is connected to an oil storage tank via a return pipe.

[0012] Preferably, the sliding plate one, sliding plate two, and sliding plate three are distributed sequentially on the column rail from top to bottom. The four corners of the sliding plate one, sliding plate two, and sliding plate three form a sliding structure with the column rail. The upper side of the sliding plate one and sliding plate two are connected to the end of the pneumatic jack, and the lower side of the sliding plate two and sliding plate three are connected to the end of the hydraulic jack.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The pressure energy storage device can be equipped with several or more air pressure tops on the same plane, which increases the stroke in the device and lengthens the energy release time.

[0015] (2) In this pressure energy storage device, the four corners of sliding plate one, sliding plate two and sliding plate three slide on the column rail, so that they can move stably after being subjected to force, and the tension force is directed to the column rail for dispersion, thereby improving the load-bearing capacity of the entire device when storing energy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the oil pipeline structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the sliding plate structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the pneumatic cylinder of this utility model.

[0021] In the diagram: 1. Top plate; 2. Bottom plate; 3. Pneumatic cylinder; 4. Pneumatic jack; 5. Sliding plate one; 6. Sliding plate two; 7. Sliding plate three; 8. Oil supply pipe one; 9. Hydraulic cylinder; 10. Hydraulic jack; 11. Oil supply pipe two; 12. Oil supply pipe three; 13. Oil supply pipe four; 14. Oil supply pipe five; 15. Valve one; 16. Valve two; 17. Column rail; 18. Hydraulic control system; 19. Oil reservoir; 20. Return oil pipe; 21. Hydraulic motor; 22. Generator; 23. Electric motor; 24. Hydraulic pump; 25. Air inlet valve; 26. Check valve; 27. Pressure gauge. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 The present invention provides the following technical solution: a pressure energy storage device, including a top plate 1, with column rails 17 connected to the four corners of the top plate 1, a bottom plate 2 connected to the lower end of the column rails 17, and a back pressure component for auxiliary energy release provided in the upper section of the column rails 17.

[0024] Furthermore, the back pressure assembly includes a sliding plate 5 and a sliding plate 6 sleeved on the outside of the column rail 17. Both the sliding plate 5 and the top plate 1 are equipped with pneumatic cylinders 3, and pneumatic cylinders 3 are provided with pneumatic push rods 4 inside the pneumatic cylinders 3.

[0025] Furthermore, the side of the pneumatic cylinder 3 is connected to an air inlet port 25, on which a check valve 26 and a pressure gauge 27 are installed.

[0026] A hydraulic energy storage component is provided at the lower end of the column rail 17, and a hydraulic control system 18 is provided on the left side of the column rail 17. The hydraulic control system 18 is connected to the energy utilization component through an oil supply pipe 8.

[0027] The hydraulic control system 18 is connected to the oil outlet of the hydraulic pump 24 via the oil supply pipe 13. The hydraulic pump 24 is connected to the output end of the motor 23 via a coupling. The oil inlet of the hydraulic pump 24 is connected to the oil storage tank 19 via the oil supply pipe 14.

[0028] Furthermore, the hydraulic energy storage component includes a sliding plate 3 7 sleeved on the outside of the column rail 17. Both the sliding plate 3 7 and the base plate 2 are equipped with hydraulic cylinders 9. The hydraulic cylinder 9 is equipped with a hydraulic push rod 10. The oil inlet of the hydraulic cylinder 9 is connected to the hydraulic control system 18 through the oil supply pipe 2 11. A valve 15 is installed at the end of the oil supply pipe 2 11 near the hydraulic cylinder 9. The oil outlet of the hydraulic cylinder 9 is connected to the hydraulic control system 18 through the oil supply pipe 3 12. A valve 2 16 is installed at the end of the oil supply pipe 3 12 near the hydraulic cylinder 9.

[0029] Furthermore, the energy utilization component includes a hydraulic motor 21, the oil inlet of which is connected to the hydraulic control system 18 via an oil supply pipe 8, the hydraulic motor 21 is connected to the generator 22 via a coupling, and the oil outlet of the hydraulic motor 21 is connected to the oil storage tank 19 via a return oil pipe 20.

[0030] Furthermore, sliding plates 5, 6, and 7 are distributed sequentially from top to bottom on the column rail 17. The four corners of sliding plates 5, 6, and 7 form a sliding structure with the column rail 17. The upper sides of sliding plates 5 and 6 are connected to the ends of the pneumatic jacking rod 4, and the lower sides of sliding plates 6 and 7 are connected to the ends of the hydraulic jacking rod 10. The column rail 17 provides sliding positioning for sliding plates 5, 6, and 7, and its tension is greater than 100 tons.

[0031] Specifically, when storing energy, the electric motor 23 is powered on and drives the hydraulic pump 24 to perform work. The pump oil enters the hydraulic control system 18 through the oil supply pipe 13, opening the valve 15 so that the pump oil is injected into the lower hydraulic cylinder 9 through the oil supply pipe 11, pushing out the hydraulic push rod 10, which in turn pushes the sliding plate 6 and the sliding plate 7 upward, applying the thrust of the hydraulic push rod 10 to the pneumatic push rod 4. The pneumatic push rod 4 is compressed back into the pneumatic cylinder 3 until the pneumatic pressure stress is 100 tons, i.e., the pressure gauge 27 shows 10 MPa, completing the energy storage of the lower hydraulic cylinder 9. Then, under the control of the hydraulic control system 18, the process proceeds step by step, that is, the pump oil is injected into the upper hydraulic cylinder 9 through the oil supply pipe 11, pushing out the hydraulic push rod 10, pushing the sliding plate 6 upward, and applying the thrust of the hydraulic push rod 10 to the pneumatic push rod 4. The above steps are repeated to complete the energy storage of the upper hydraulic cylinder 9.

[0032] When energy is released, valve 15 can be closed and valve 2 can be opened to activate the control system. The pneumatic jack 4 extends out of the pneumatic cylinder 3 under pneumatic pressure, pushing the hydraulic jack 10 to retract back into the hydraulic cylinder 9. The pump oil is pumped through the oil supply pipe 3 12, and through the hydraulic control system 18 through the oil supply pipe 1 8 to drive the hydraulic motor 21 to do work, which in turn drives the generator 22 to generate electricity. The hydraulic control system 18 is a mature technology, such as the hydraulic control system 18 used in large cranes and excavators in the field of engineering machinery. The difference is that in this device, the return of the hydraulic rod is the release of energy. Moreover, when the energy is released, the pneumatic jack 4 is pushed to the top under pneumatic pressure, and the pneumatic stress is 10 tons, that is, the pressure gauge 27 shows 1 MPa. After the energy is released, the pump oil is recovered into the oil storage tank 19 through the return oil pipe 20 for easy recycling. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] 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 pressure energy storage device, comprising a top plate (1), characterized in that: The top plate (1) is connected to four corners of a column rail (17), the lower end of the column rail (17) is connected to a bottom plate (2), and the upper section of the column rail (17) is provided with a back pressure assembly for auxiliary energy release. A hydraulic energy storage component is provided at the lower end of the column rail (17), and a hydraulic control system (18) is provided on the left side of the column rail (17). The hydraulic control system (18) is connected to the energy utilization component through an oil supply pipe (8). The hydraulic control system (18) is connected to the outlet of the hydraulic pump (24) via the fourth oil supply pipe (13). The output end of the hydraulic pump (24) is connected to the motor (23) via a coupling. The inlet of the hydraulic pump (24) is connected to the oil storage tank (19) via the fifth oil supply pipe (14). The back pressure assembly includes a sliding plate one (5) and a sliding plate two (6) sleeved on the outside of the column rail (17). A pneumatic cylinder (3) is installed on both the sliding plate one (5) and the top plate (1). A pneumatic push rod (4) is provided inside the pneumatic cylinder (3). The hydraulic energy storage assembly includes a sliding plate three (7) sleeved on the outside of the column rail (17). Both the sliding plate three (7) and the base plate (2) are equipped with hydraulic cylinders (9). The hydraulic cylinder (9) is equipped with a hydraulic push rod (10). The oil inlet of the hydraulic cylinder (9) is connected to the hydraulic control system (18) through the oil supply pipe two (11). The oil supply pipe two (11) is equipped with a valve one (15) at the end near the hydraulic cylinder (9). The oil outlet of the hydraulic cylinder (9) is connected to the hydraulic control system (18) through the oil supply pipe three (12). The oil supply pipe three (12) is equipped with a valve two (16) at the end near the hydraulic cylinder (9).

2. The pressure energy storage device according to claim 1, characterized in that: The side of the pneumatic cylinder (3) is connected to an air inlet port (25), and a check valve (26) and a pressure gauge (27) are installed on the air inlet port (25).

3. The pressure energy storage device according to claim 1, characterized in that: The energy utilization component includes a hydraulic motor (21), the oil inlet of which is connected to the hydraulic control system (18) via an oil supply pipe (8), the hydraulic motor (21) is connected to the generator (22) via a coupling, and the oil outlet of which is connected to the oil storage tank (19) via a return oil pipe (20).

4. The pressure energy storage device according to claim 1, characterized in that: The sliding plate one (5), sliding plate two (6) and sliding plate three (7) are distributed on the column rail (17) from top to bottom. The four corners of the sliding plate one (5), sliding plate two (6) and sliding plate three (7) form a sliding structure with the column rail (17). The upper side of the sliding plate one (5) and sliding plate two (6) are connected to the end of the pneumatic push rod (4), and the lower side of the sliding plate two (6) and sliding plate three (7) are connected to the end of the hydraulic push rod (10).

Images