A compressed air energy storage tank

Abstract

The application discloses a compressed air energy storage tank, which comprises a drainage mechanism arranged below the tank, wherein the drainage mechanism comprises a drainage pipe fixedly connected with the tank, and grooves are arranged at the connection between the drainage pipe and the tank in a symmetrical manner. The application is provided with a drainage mechanism, which utilizes the vacuum suction mode, cooperates the piston with the one-way valve, and separates the accumulated water in the tank until the accumulated water in the tank is exhausted, and part of the compressed air is extracted into the drainage pipe, and the piston is pushed back to push the compressed air in the drainage pipe back into the tank body, so that only the accumulated water that needs to be drained is reserved in the drainage pipe, the compressed air is not taken out during the drainage process, the waste of the compressed air is avoided, the accumulated water in the tank body can be completely drained, and the residual amount of the accumulated water in the tank body is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of compressed air energy storage tanks, specifically to a compressed air energy storage tank. Background Technology

[0002] A compressed air storage tank is a device that stores compressed air for later use. Its basic principle is to compress air into the tank using an electric motor, thus storing the air. As external demand increases, the storage tank releases the compressed air for conversion into mechanical, thermal, or electrical energy. Compressed air storage tanks, as energy storage devices, have broad application prospects. In the industrial sector, they can be used in various aspects such as process production and transportation. In the civilian sector, they can be used in areas such as air energy recovery and small pneumatic generators. Because compressed air is supplied to the outside of the tank, the compressed air remaining inside expands and cools. As a result, the water vapor contained in the remaining compressed air condenses, accumulating as water in the tank. This accumulated water can sometimes cause rust stains inside the tank or reduce the amount of compressed air stored. In existing technologies, when draining water from the inside of a storage tank, compressed air and water are sometimes discharged together, resulting in a waste of compressed air. At the same time, condensate may sometimes adhere to the inner wall of the storage tank. A single drainage operation may not be able to remove all the condensate adhering to the inner wall of the storage tank. A single drainage operation may not be able to remove all the water, and some water may remain. In addition, some compressed air may be wasted. Summary of the Invention

[0003] The purpose of this invention is to provide a compressed air energy storage tank to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: including a drainage mechanism disposed below the storage tank.

[0005] The drainage mechanism includes a drain pipe fixedly connected to the storage tank. Grooves are equidistantly arranged at the connection between the drain pipe and the storage tank. Each groove is fixedly equipped with a corresponding one-way valve, and each one-way valve has a movable valve. A rotating plate is rotatably mounted inside the drain pipe, and a pair of sealing blocks are fixedly mounted on the rotating plate. A protective shell is also fixedly mounted on the drain pipe. A first motor is fixedly mounted inside the protective shell, and the motor shaft of the first motor is fixedly connected to the rotating plate. A piston plate slides inside the drain pipe, and the piston plate is fixedly connected to a piston rod. The other end of the piston rod is fixedly connected to a connecting plate. The connecting plate is fixedly connected to a lifting connecting block, and the lifting connecting block is helically driven by a screw. The screw is rotatably connected to a connecting support rod. A second motor is also fixedly mounted on the connecting support rod, and the motor shaft of the second motor is fixedly connected to the screw. A drain hose is fixedly mounted on the piston plate, and the other end of the drain hose is fixedly connected to a corresponding water pump.

[0006] Preferably, a fixed partition plate is fixedly installed inside the storage tank. A pair of reels are rotatably mounted on the fixed partition plate, and a corresponding traction rope is wound on the reels. A third motor is also fixedly installed on the fixed partition plate. The third motor is also equipped with a protective shell. The motor shaft of the third motor is fixedly connected to the corresponding reel. The traction rope passes through the fixed partition plate and is fixedly connected to the traction block. Connecting rods are fixedly arranged at equal intervals on the traction block, and the other end of the connecting rod is fixedly connected to the scraper.

[0007] Preferably, the connecting support rod is fixedly mounted on its corresponding support foot, a control terminal is fixedly mounted on the connecting support rod, and a contact liquid sensor is fixedly mounted inside the drain pipe.

[0008] Compared with the prior art, the present invention has the following beneficial effects: The present invention sets up a drainage mechanism, which uses vacuum suction and the cooperation of a piston and a one-way valve to remove the water inside the storage tank until the water inside the storage tank is emptied. A portion of compressed air is extracted into the drain pipe, and the piston is pushed back to push the compressed air inside the drain pipe back into the tank. This ensures that only the water that needs to be discharged is left in the drain pipe, thereby ensuring that compressed air is not carried out during the drainage process, avoiding waste of compressed air, and ensuring the complete drainage of the water inside the storage tank, reducing the amount of residual water inside the storage tank. Attached Figure Description

[0009] Figure 1 This is a first external appearance diagram of an embodiment of the present invention;

[0010] Figure 2 This is a second appearance diagram of an embodiment of the present invention;

[0011] Figure 3 This is a schematic diagram of the structure of an embodiment of the present invention;

[0012] Figure 4 This is a schematic diagram of a first partial structure according to an embodiment of the present invention;

[0013] Figure 5 This is a schematic diagram of a second partial structure according to an embodiment of the present invention;

[0014] Figure 6 This is a schematic diagram of a third partial structure according to an embodiment of the present invention;

[0015] Figure 7 This is an embodiment of the present invention. Figure 4 Enlarged view of point A in the middle;

[0016] In the diagram: 11. Storage tank; 12. Support leg; 13. Control terminal; 14. Connecting support rod; 15. Drain hose; 16. Screw; 17. Lifting connecting block; 18. Connecting plate; 19. Drain pipe; 20. Fixed partition plate; 21. Traction rope; 22. Motor No. 3; 23. Spool; 24. Traction block; 25. Connecting rod; 26. Squeegee; 27. Motor No. 2; 28. Piston rod; 29. ​​Piston plate; 30. Protective shell; 31. Motor No. 1; 32. Rotating plate; 33. Sealing block; 34. Tank; 35. Contact liquid sensor; 36. Check valve; 37. Movable valve; 61. Drainage mechanism; 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] Combined with appendix Figures 1-7 The compressed air storage tank includes a drainage mechanism 61 disposed below the storage tank 11.

[0019] The drainage mechanism 61 includes a drainage pipe 19 fixedly connected to the storage tank 11. Grooves 34 are equidistantly arranged at the connection between the drainage pipe 19 and the storage tank 11. Each groove 34 is fixedly equipped with a corresponding one-way valve 36. Each one-way valve 36 is movably equipped with a movable valve 37, which is used to block the one-way valve 36. A rotating plate 32 is rotatably installed inside the drainage pipe 19. A pair of sealing blocks 33 are fixedly installed on the rotating plate 32. The sealing blocks 33 are used to block the movable valves 37 facing away from the inside of the storage tank 11. This pair of movable valves 37 facilitates the extraction of water from the inside of the storage tank 11, while the other pair of movable valves 37 facing the inside of the storage tank 11 facilitates the return of extracted compressed air to the inside of the storage tank 11. A protective shell 30 is also fixedly installed on the drainage pipe 19. A first motor 31 is fixedly installed, and a protective shell 30 is used to protect the first motor 31. The motor shaft of the first motor 31 is fixedly connected to the rotating plate 32. A piston plate 29 is slidably installed inside the drain pipe 19. The piston plate 29 is fixedly connected to the piston rod 28. The other end of the piston rod 28 is fixedly connected to the connecting plate 18. The connecting plate 18 is fixedly connected to the lifting connecting block 17. The lifting connecting block 17 is screwed to the screw 16. The screw 16 is rotatably connected to the connecting support rod 14. A second motor 27 is also fixedly installed on the connecting support rod 14. The motor shaft of the second motor 27 is fixedly connected to the screw 16. A drain hose 15 is fixedly installed on the piston plate 29. The other end of the drain hose 15 is fixedly connected to its corresponding water pump. The piston plate 29 is made of alloy material and is tightly fitted to the inner wall of the drain pipe 19.

[0020] Advantageously, a fixed partition plate 20 is fixedly installed inside the storage tank 11. A pair of reels 23 are rotatably mounted on the fixed partition plate 20. A corresponding traction rope 21 is wound around the reels 23. A third motor 22 is also fixedly mounted on the fixed partition plate 20. The third motor 22 is also provided with a protective shell. The motor shaft of the third motor 22 is fixedly connected to the corresponding reel 23. The traction rope 21 passes through the fixed partition plate 20 and is fixedly connected to the traction block 24. Connecting rods 25 are fixedly arranged at equal intervals on the traction block 24. The other end of the connecting rod 25 is fixedly connected to the wiper blade 26. The wiper blade 26 is made of plastic and fits tightly against the inner wall of the storage tank 11. The wiper blade 26 has a certain weight and will descend automatically inside the storage tank 11 when not affected by external force.

[0021] Advantageously, the connecting support rod 14 is fixedly mounted on its corresponding support foot 12, and a control terminal 13 is fixedly mounted on the connecting support rod 14. A contact liquid sensor 35 is fixedly mounted inside the drain pipe 19. The contact liquid sensor 35 is used to determine whether liquid is in contact with it, and the control terminal 13 is used to control all motors.

[0022] How to use this invention:

[0023] In the initial state: the scraper 26 is at the lowest end of the storage tank 11, the traction rope 21 is taut, the lifting connecting block 17 is at the highest point of the screw 16, the top surface of the piston plate 29 is in contact with the bottom surface of the protective shell 30, each of the movable valves 37 is tightly attached to its corresponding one-way valve 36, each of the movable valves 37 closes its corresponding one-way valve 36, and the sealing block 33 blocks its corresponding movable valve 37.

[0024] When the user needs to use this invention, the storage tank 11 is filled with compressed air. The compressed air in the storage tank 11 blocks the movable valve 37 facing inwards, preventing it from opening. The movable valve 37 facing away from the inside of the storage tank 11 is blocked by the sealing block 33. When it is necessary to drain the water accumulated inside the storage tank 11, the user needs to drive the third motor 22 through the control terminal 13. After the third motor 22 is started, its motor shaft will drive the reel 23 to rotate, thereby completing the winding of the traction rope 21. The winding of the traction rope 21 lifts the traction block 24, thereby driving the wiper blade 26 to rise as well. As the water rises, the wiper blade 26 will scrape away the small water droplets adhering to the inside of the storage tank 11, causing the water droplets hanging on the wall to fall off. Once the reel 23 has completed its rotation, the wiper blade 26 is raised to its highest point inside the storage tank 11. Then, the third motor 22 automatically shuts off. After the third motor 22 shuts off, its motor shaft will not lock the reel 23, and under the weight of the wiper blade 26 itself, the traction rope 21 will be pulled out. The wiper blade 26 slowly descends to its reset position. At this time, the user starts the first motor 31 via the control terminal 13. After the first motor 31 starts, its motor shaft will drive the rotating plate 32 to rotate, thereby causing the sealing block 3... 3. The corresponding movable valve 37 is no longer blocked. Then, the second motor 27 is started via the control terminal 13. After the second motor 27 is started, its motor shaft will drive the screw 16 to rotate. The rotation of the screw 16 will drive the lifting connecting block 17 to descend, thereby driving the piston rod 28 and the piston plate 29 to descend. Since there is a sealed space between the piston plate 29 and the storage tank 11, as the piston plate 29 descends, it will draw open the movable valve 37 previously blocked by the blocking block 33 under the action of negative pressure. This will cause the corresponding one-way valve 36 to open, and the water inside the storage tank 11 will enter the drain pipe 19 through the one-way valve 36 until the water is drained. When the piston plate 29 descends to its lowest point, the second motor 27 will stop operating, causing the piston plate 29 to stop moving. At this time, the first motor 31 will restart under the control of the control terminal 13. After starting, the motor shaft of the first motor 31 will drive the rotating plate 32 to rotate. As the rotating plate 32 rotates, the inclined surface on the sealing block 33 will contact the movable valve 37 facing the piston plate 29. Under the action of the inclined surface of the sealing block 33, the corresponding movable valve 37 will be pushed upwards, thus completing the reset and sealing of the previously open movable valve 37. This restores the previous sealing space between the piston plate 29 and the drain pipe 19.At this time, the contact liquid sensor 35 will be activated under the control of the control terminal 13. If the contact liquid sensor 35 does not detect water, it means that its bottom surface is not in contact with the liquid. This indicates that there is water and compressed air between the drain pipe 19 and the piston plate 29. At this time, the second motor 27 will be activated under the control of the control terminal 13. After the second motor 27 is activated, its motor shaft will drive the screw 16 to rotate, thereby driving the piston rod 28 and the piston plate 29 to rise. As the piston plate 29 rises, the compressed air in the drain pipe 19 will open the movable valve 37 on the other pair of one-way valves 36 (the movable valve 37 faces the one-way valve 36 inside the storage tank 11), so that the compressed air between the piston plate 29 and the drain pipe 19 returns to the storage tank through the corresponding one-way valve 36. Inside tank 11, when the contact liquid sensor 35 detects contact with the liquid, it will send a signal to the control terminal 13. Upon receiving the signal, the control terminal 13 will start the second motor 27 to maintain the upward movement of the piston plate 29. At the same time, the water pump connected to the drain hose 15 will start under the control of the control terminal 13 to pump the water between the piston plate 29 and the drain hose 19 in sync with the upward movement of the piston plate 29. This prevents the piston plate 29 from being pushed into the tank 11, causing the corresponding movable valve 37 to close automatically, preventing the water from returning to the tank 11 through the one-way valve 36. This completes the removal of the water from the tank 11 and prevents the pumping away of compressed air, thus avoiding waste of compressed air. If the contact liquid sensor 35 detects contact with liquid, the control terminal 13 will activate the second motor 27 and the water pump corresponding to the drain hose 15 to remove the accumulated water once. The control terminal 13 will then activate the second motor 27 again, which will move the piston plate 29 to perform multiple suction operations until the contact liquid sensor 35 no longer detects contact with liquid. The above steps will then be repeated.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A compressed air storage tank, comprising a storage tank (11) and a drainage mechanism (61) disposed below the storage tank (11), characterized in that: The drainage mechanism (61) includes a drainage pipe (19) fixedly connected to the storage tank (11). Grooves (34) are equidistantly arranged at the connection between the drainage pipe (19) and the storage tank (11). Each groove (34) is fixedly equipped with a corresponding one-way valve (36). Each one-way valve (36) is movably equipped with a movable valve (37). A rotating plate (32) is rotatably installed inside the drainage pipe (19). A pair of sealing blocks (33) are fixedly installed on the rotating plate (32). A protective shell (30) is also fixedly installed on the drainage pipe (19). A primary motor (31) is fixedly installed inside the protective shell (30). The motor shaft of the primary motor (31) is fixedly connected to the rotating plate (32). A piston plate (29) is slidably provided inside the drain pipe (19). The piston plate (29) is fixedly connected to the piston rod (28). The other end of the piston rod (28) is fixedly connected to the connecting plate (18). The connecting plate (18) is fixedly connected to the lifting connecting block (17). The lifting connecting block (17) is screwed to the screw (16). The screw (16) is rotatably connected to the connecting support rod (14). A second motor (27) is also fixedly provided on the connecting support rod (14). The motor shaft of the second motor (27) is fixedly connected to the screw (16). A drain hose (15) is fixedly provided on the piston plate (29). The other end of the drain hose (15) is fixedly connected to its corresponding water pump. The one-way valve (36) is divided into two groups. The active valve (37) of one group of one-way valves (36) faces the inside of the storage tank (11), and the active valve (37) of the other group of one-way valves (36) faces away from the storage tank (11).

2. The compressed air energy storage tank according to claim 1, characterized in that: The storage tank (11) is fixedly provided with a fixed partition plate (20), and a pair of reels (23) are rotatably provided on the fixed partition plate (20), and a corresponding traction rope (21) is wound on the reels (23).

3. A compressed air energy storage tank according to claim 2, characterized in that: The fixed partition plate (20) is also fixedly equipped with a No. 3 motor (22), and the No. 3 motor (22) is also equipped with a protective shell.

4. A compressed air energy storage tank according to claim 3, characterized in that: The motor shaft of the No. 3 motor (22) is fixedly connected to its corresponding reel (23).

5. A compressed air energy storage tank according to claim 2, characterized in that: The traction rope (21) passes through the fixed partition plate (20) and is fixedly connected to the traction block (24).

6. A compressed air energy storage tank according to claim 5, characterized in that: Connecting rods (25) are fixedly arranged at equal intervals on the traction block (24), and the other end of the connecting rods (25) is fixedly connected to the wiper blade (26).

7. A compressed air energy storage tank according to claim 1, characterized in that: The connecting support rod (14) is fixedly mounted on its corresponding support foot (12).

8. A compressed air energy storage tank according to claim 7, characterized in that: A control terminal (13) is fixedly installed on the connecting support rod (14), and a contact liquid sensor (35) is fixedly installed inside the drain pipe (19).

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