Air buffer tank for nitrogen preparation

Abstract

The utility model discloses an air buffer tank for nitrogen preparation, which comprises a tank body, a tank cover is fixed at the top end of the tank body through a bolt, a rotating shaft is rotatably connected with the inner wall of the bottom surface of the tank cover, a mounting rod is fixed on the outer wall of the rotating shaft, and the other end of the mounting rod is connected with a scraper plate through a compensation component. A motor is fixed to the outer wall of the top face of the tank cover. Through the arrangement of the compensation assembly, when the scraper blade is abraded, the second compensation spring stretches and pushes the connecting rod to move along the compensation cavity, abrasion of the scraper blade is compensated, after the second compensation spring stretches by a certain length, the pressure borne by the movable block by the second compensation spring is reduced, the first compensation spring pushes the movable block to move, and the limiting block is extruded; the limiting block is shrunk towards the interior of the cavity, the second compensation spring is compressed, power is provided for pushing the connecting rod to compensate abrasion of the scraper, and compared with direct spring compensation, the pressure borne by the scraper is small, and abrasion between the scraper and the inner wall of the tank cannot be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen preparation, in particular to an air buffer tank used for nitrogen preparation. Background Art

[0002] An air buffer tank is usually required during the preparation of nitrogen. The buffer tank is mainly used to buffer the pressure fluctuations of the system and make the system work more smoothly.

[0003] After searching, the Chinese patent publication number CN216143549U discloses a nitrogen buffer tank for a nitrogen generator, including a nitrogen buffer tank body, a delivery pipe is fixedly installed on the top of the nitrogen buffer tank body, a discharge pipe is fixedly installed on the outer surface of the nitrogen buffer tank body, a sewage pipe is fixedly installed on the bottom of the nitrogen buffer tank body, and a cleaning mechanism is fixedly installed in the middle of the upper surface of the nitrogen buffer tank body.

[0004] This patent sets a driving motor, a threaded rod, a cleaning ring, a connecting block, a fixed rod and a soft scraper. The driving motor and the threaded rod cooperate to make the connecting block drive the fixed rod and the cleaning ring to rotate, and then use the soft scraper to scrape off the impurities on the inner wall of the nitrogen buffer tank body, thereby avoiding the problem that the inner wall of the nitrogen buffer tank is corroded for a long time and some impurities are attached. The residual impurities will affect the subsequent nitrogen quality. However, after multiple cleanings, the soft scraper is worn and cannot effectively fit with the inner wall of the nitrogen buffer tube body, and the scraping effect becomes poor. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an air buffer tank for nitrogen preparation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An air buffer tank for nitrogen preparation comprises a tank body, a tank cover is fixed to the top of the tank body by bolts, the inner wall of the bottom surface of the tank cover is rotatably connected to a rotating shaft, a mounting rod is fixed to the outer wall of the rotating shaft, and the other end of the mounting rod is connected to a scraper through a compensation component, the compensation component comprises a compensation cavity and a connecting rod, the compensation cavity is opened on the outer wall of one side of the mounting rod, the connecting rod is connected to the outer wall of one side of the scraper, the connecting rod is slidably connected to the compensation cavity, a plurality of cavities are opened on the inner walls on both sides of the compensation cavity, the cavities are arranged in a straight line and equidistantly, the inner wall of the cavity is slidably connected to a limiting block, a pressure spring is fixed to the outer wall of one side of the limiting block, the other end of the pressure spring is connected to the inner wall of the cavity, the inner wall of the compensation cavity is slidably connected to a moving block, the moving block is limitedly matched with the limiting block, and a compensation spring 1 and a compensation spring 2 are respectively fixed to the outer walls on both sides of the moving block, the other end of the compensation spring 1 is connected to the inner wall of the compensation cavity, and the other end of the compensation spring 2 is connected to the outer wall of one side of the connecting rod.

[0008] As a further solution of the utility model: a base is fixed to the outer wall of the bottom end of the tank body, a movable wheel is fixed to the outer wall of the bottom surface of the base, a plurality of threaded rods are threadedly connected to the outer wall of the top surface of the base, a support block is fixed to the bottom end of the threaded rod, an anti-slip pad is fixed to the outer wall of the bottom surface of the support block, and a turning handle is fixed to the top end of the threaded rod.

[0009] As a further solution of the utility model: an air inlet pipe and an air outlet pipe are arranged on the outer wall of the tank body, the air inlet pipe and the air outlet pipe are connected with the inside of the tank body, a motor is fixed to the outer wall of the top surface of the tank cover, and the output shaft of the motor is connected to the rotating shaft through a coupling.

[0010] As a further solution of the utility model: the scraper is in contact with the inner wall of the tank body, a sewage pipe is arranged at the bottom end of the tank body, and a sewage valve is installed at the connection between the sewage pipe and the tank body.

[0011] As a further solution of the utility model: the scraper and the connecting rod are fixed by a connecting assembly, and the connecting assembly includes a connecting groove and a connecting block. The connecting groove is opened on the outer wall of one end of the connecting rod, and the connecting block is fixed on the outer wall of one side of the scraper.

[0012] As a further solution of the utility model: the connection block is slidably matched with the connection groove, and connection holes are opened on the inner walls on both sides of the connection groove.

[0013] As a further solution of the utility model: the outer walls on both sides of the connection block are provided with movable cavities, the inner walls of the movable cavities are slidably connected with insertion rods, and the insertion rods are limitedly matched with the connection holes.

[0014] As a further solution of the utility model: a connecting spring is fixed to the outer wall of one side of the insertion rod, and the other end of the connecting spring is connected to the inner wall of the moving cavity.

[0015] Compared with the prior art, the utility model provides an air buffer tank for nitrogen preparation, which has the following beneficial effects:

[0016] 1. The utility model is provided with a compensation component. When the scraper is worn, the second compensation spring stretches to push the connecting rod to move along the compensation cavity to compensate for the wear of the scraper. When the second compensation spring stretches a certain length, the pressure of the moving block is reduced by the second compensation spring, and the first compensation spring pushes the moving block to move, squeezing the limit block to make the limit block shrink toward the inside of the cavity. The second compensation spring is compressed to provide power for pushing the connecting rod to compensate for the wear of the scraper. Compared with direct use of spring compensation, the pressure on the scraper is smaller, and the wear between the scraper and the inner wall of the tank body will not increase.

[0017] 2. The utility model is provided with moving wheels, support blocks, threaded rods and handlebars. When moving the tank body, the support block can be raised to facilitate moving the tank body. When in use, the handlebar is turned to rotate the threaded rod and vertically descend until the anti-slip pad on the bottom surface of the support block contacts the ground, thereby stably supporting the tank body.

[0018] 3. The utility model is provided with a connection assembly. When replacing the scraper, the tank cover is removed, the scraper is taken out from the tank body, the insertion rod is pressed to make the insertion rod shrink into the movable cavity and disengage from the connection hole, the scraper is pulled to one side, the connection block is pulled out from the connection groove, and the scraper can be removed, which is convenient for replacing the scraper.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an air buffer tank for nitrogen preparation proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of an air buffer tank for nitrogen preparation proposed by the utility model;

[0022] Figure 3 This is a structural schematic diagram of an air buffer tank compensation component for nitrogen preparation proposed by the utility model;

[0023] Figure 4 The utility model is a schematic structural diagram of an air buffer tank connection assembly for nitrogen preparation.

[0024] In the figure: 1. tank body; 2. tank cover; 3. base; 4. exhaust pipe; 5. inlet pipe; 6. moving wheel; 7. support block; 8. threaded rod; 9. handle; 10. motor; 11. rotating shaft; 12. mounting rod; 13. scraper; 14. drain pipe; 15. drain valve; 16. connecting rod; 17. compensation chamber; 18. moving block; 19. compensation spring 1; 20. compensation spring 2; 21. cavity; 22. pressure spring; 23. limit block; 24. connecting groove; 25. connecting hole; 26. plug rod; 27. moving chamber; 28. connecting spring; 29. ​​connecting block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Example 1

[0028] An air buffer tank for nitrogen preparation, such as Figures 1 to 3 As shown, it comprises a tank body 1, a tank cover 2 is fixed to the top of the tank body 1 by bolts, a base 3 is fixed to the outer wall of the bottom end of the tank body 1, a moving wheel 6 is fixed to the outer wall of the bottom surface of the base 3, a plurality of threaded rods 8 are threadedly connected to the outer wall of the top surface of the base 3, a support block 7 is fixed to the bottom end of the threaded rod 8, an anti-slip pad is fixed to the outer wall of the bottom surface of the support block 7, a turning handle 9 is fixed to the top of the threaded rod 8, an air inlet pipe 5 and an air outlet pipe 4 are arranged on the outer wall of the tank body 1, and the air inlet pipe 5 and the air outlet pipe 4 are connected to the tank The tank body 1 is connected to the inside, a motor 10 is fixed to the outer wall of the top surface of the tank cover 2, and a rotating shaft 11 is rotatably connected to the inner wall of the bottom surface of the tank cover 2. The output shaft of the motor 10 is connected to the rotating shaft 11 through a coupling, and a mounting rod 12 is fixed to the outer wall of the rotating shaft 11. The other end of the mounting rod 12 is connected to a scraper 13 through a compensation component. The scraper 13 is in contact with the inner wall of the tank body 1. A sewage pipe 14 is arranged at the bottom end of the tank body 1, and a sewage valve 15 is installed at the connection between the sewage pipe 14 and the tank body 1.

[0029] The compensation component includes a compensation cavity 17 and a connecting rod 16. The compensation cavity 17 is opened on the outer wall of one side of the mounting rod 12. The connecting rod 16 is connected to the outer wall of one side of the scraper 13. The connecting rod 16 is slidably connected to the compensation cavity 17. A plurality of cavities 21 are opened on the inner walls on both sides of the compensation cavity 17. The cavities 21 are arranged in a straight line and equidistantly. The inner wall of the cavity 21 is slidably connected to a limit block 23. A pressure spring 22 is fixed to the outer wall of one side of the limit block 23. The other end of the pressure spring 22 is connected to the inner wall of the cavity 21. A moving block 18 is slidably connected to the inner wall of the compensation cavity 17. The moving block 18 is limitedly matched with the limit block 23. A compensation spring 19 and a compensation spring 20 are respectively fixed to the outer walls on both sides of the moving block 18. The other end of the compensation spring 19 is connected to the inner wall of the compensation cavity 17, and the other end of the compensation spring 20 is connected to the outer wall of one side of the connecting rod 16.

[0030] When in use, push the tank body 1, use the moving wheel 6 to push the tank body 1 to the designated area, then turn the handle 9 to rotate the threaded rod 8 and drop vertically until the anti-skid pad on the bottom of the support block 7 contacts the ground, thereby improving the stability of the tank body 1. When the inner wall of the tank body 1 needs to be cleaned, the motor 10 is started to rotate the rotating shaft 11, so that the scraper 13 scrapes off the impurities on the inner wall of the tank body 1, the drain valve 15 is opened, and the impurities are discharged from the drain pipe 14. When the scraper 13 is worn, the compensation spring 20 is extended to push the connecting rod 16 to move along the compensation cavity 17 to compensate for the wear of the scraper 13. When the compensation spring 20 is extended to a certain length, the moving block 18 is reduced by the pressure of the compensation spring 20, and the compensation spring 19 pushes the moving block 18 to move, squeezing the limit block 23, so that the limit block 23 shrinks into the cavity 21, so that the limit block 23 avoids the moving block 18, and the compensation spring 20 is compressed to provide power for pushing the connecting rod 16 to compensate for the wear of the scraper 13.

[0031] By setting up a compensation component, when the scraper 13 is worn, the compensation spring 20 stretches and pushes the connecting rod 16 to move along the compensation cavity 17 to compensate for the wear of the scraper 13. When the compensation spring 20 stretches a certain length, the pressure of the moving block 18 is reduced by the compensation spring 20, and the compensation spring 19 pushes the moving block 18 to move, squeezing the limit block 23, so that the limit block 23 shrinks into the cavity 21, so that the limit block 23 avoids the moving block 18, and the compensation spring 20 is compressed to provide power for pushing the connecting rod 16 to compensate for the wear of the scraper 13. Compared with directly using spring compensation, the pressure on the scraper 13 is smaller, and the wear between the scraper 13 and the inner wall of the tank body 1 will not increase.

[0032] By arranging the moving wheels 6, the support block 7, the threaded rod 8 and the turning handle 9, when moving the tank body 1, the support block 7 can be raised to facilitate moving the tank body 1. When in use, the turning handle 9 is turned to rotate the threaded rod 8 and vertically descend until the anti-slip pad on the bottom surface of the support block 7 contacts the ground, thereby stably supporting the tank body 1.

[0033] Example 2

[0034] An air buffer tank for preparing nitrogen. This embodiment makes the following improvements on the basis of embodiment 1: Figure 4 As shown, the scraper 13 and the connecting rod 16 are fixed by a connecting assembly, and the connecting assembly includes a connecting groove 24 and a connecting block 29. The connecting groove 24 is opened on the outer wall of one end of the connecting rod 16, and the connecting block 29 is fixed to the outer wall of one side of the scraper 13. The connecting block 29 is slidably matched with the connecting groove 24. The inner walls on both sides of the connecting groove 24 are provided with connecting holes 25. The outer walls on both sides of the connecting block 29 are provided with movable cavities 27. The inner wall of the movable cavity 27 is slidably connected with an insertion rod 26. The insertion rod 26 is limitedly matched with the connecting hole 25. A connecting spring 28 is fixed to the outer wall of one side of the insertion rod 26, and the other end of the connecting spring 28 is connected to the inner wall of the movable cavity 27.

[0035] When replacing the scraper 13 , the tank cover 2 is removed, the scraper 13 is taken out of the tank body 1 , the insertion rod 26 is pressed to make the insertion rod 26 retract into the movable cavity 27 and disengage from the connecting hole 25 , the scraper 13 is pulled to one side, and the connecting block 29 is pulled out of the connecting groove 24 .

[0036] By setting up the connection assembly, when replacing the scraper 13, the tank cover 2 is removed, the scraper 13 is taken out from the tank body 1, the insertion rod 26 is pressed to make the insertion rod 26 shrink into the movable cavity 27 and disengage from the connection hole 25, the scraper 13 is pulled to one side, and the connection block 29 is pulled out from the connection groove 24, and the scraper 13 can be removed, which is convenient for replacing the scraper 13.

[0037] Working principle: When in use, push the tank body 1, use the moving wheel 6 to push the tank body 1 to the designated area, then turn the handle 9 to rotate the threaded rod 8 and drop vertically until the anti-skid pad on the bottom of the support block 7 contacts the ground, thereby improving the stability of the tank body 1. When the inner wall of the tank body 1 needs to be cleaned, the motor 10 starts to rotate the shaft 11, so that the scraper 13 scrapes the impurities on the inner wall of the tank body 1, the drain valve 15 opens, and the impurities are discharged from the drain pipe 14. When the scraper 13 is worn, the compensation spring 20 stretches, pushing the connecting rod 16 to move along the compensation cavity 17 to compensate for the wear of the scraper 13. When the compensation spring After the second 20 is stretched to a certain length, the moving block 18 is reduced in pressure by the compensation spring second 20, and the compensation spring one 19 pushes the moving block 18 to move, squeezing the limit block 23, causing the limit block 23 to shrink into the cavity 21, so that the limit block 23 avoids the moving block 18, and the compensation spring second 20 is compressed to provide power for pushing the connecting rod 16 to compensate for the wear of the scraper 13. When replacing the scraper 13, the tank cover 2 is removed, the scraper 13 is taken out of the tank body 1, and the insertion rod 26 is pressed to make the insertion rod 26 shrink into the moving cavity 27 and disengage from the connecting hole 25, and the scraper 13 is pulled to one side, and the connecting block 29 is pulled out of the connecting groove 24.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air buffer tank for nitrogen preparation, comprising a tank body (1), characterized in that: The top of the tank body (1) is fixed with a tank cover (2) by bolts, the inner wall of the bottom surface of the tank cover (2) is rotatably connected with a rotating shaft (11), the outer wall of the rotating shaft (11) is fixed with a mounting rod (12), the other end of the mounting rod (12) is connected with a scraper (13) through a compensation component, the compensation component comprises a compensation cavity (17) and a connecting rod (16), the compensation cavity (17) is opened on the outer wall of one side of the mounting rod (12), the connecting rod (16) is connected to the outer wall of one side of the scraper (13), the connecting rod (16) is slidably connected with the compensation cavity (17), and the inner walls on both sides of the compensation cavity (17) are each provided with a plurality of cavities (21), the cavities (21) ) are arranged in a straight line and equidistantly, the inner wall of the cavity (21) is slidably connected to a limit block (23), one side outer wall of the limit block (23) is fixed with a pressure spring (22), the other end of the pressure spring (22) is connected to the inner wall of the cavity (21), the inner wall of the compensation cavity (17) is slidably connected to a moving block (18), the moving block (18) and the limit block (23) are limitedly matched, and the outer walls on both sides of the moving block (18) are respectively fixed with a compensation spring 1 (19) and a compensation spring 2 (20), the other end of the compensation spring 1 (19) is connected to the inner wall of the compensation cavity (17), and the other end of the compensation spring 2 (20) is connected to the outer wall of one side of the connecting rod (16).

2. The air buffer tank for nitrogen preparation according to claim 1, characterized in that: A base (3) is fixed to the outer wall of the bottom end of the tank body (1), a moving wheel (6) is fixed to the outer wall of the bottom surface of the base (3), a plurality of threaded rods (8) are threadedly connected to the outer wall of the top surface of the base (3), a support block (7) is fixed to the bottom end of the threaded rod (8), an anti-slip pad is fixed to the outer wall of the bottom surface of the support block (7), and a turning handle (9) is fixed to the top end of the threaded rod (8).

3. The air buffer tank for nitrogen preparation according to claim 1, characterized in that: An air inlet pipe (5) and an air outlet pipe (4) are arranged on the outer wall of the tank body (1), and the air inlet pipe (5) and the air outlet pipe (4) are communicated with the interior of the tank body (1). A motor (10) is fixed on the outer wall of the top surface of the tank cover (2), and the output shaft of the motor (10) is connected to the rotating shaft (11) via a coupling.

4. The air buffer tank for nitrogen preparation according to claim 1, characterized in that: The scraper (13) is in contact with the inner wall of the tank body (1), a sewage discharge pipe (14) is provided at the bottom end of the tank body (1), and a sewage discharge valve (15) is installed at the connection between the sewage discharge pipe (14) and the tank body (1).

5. The air buffer tank for nitrogen preparation according to claim 1, characterized in that: The scraper (13) and the connecting rod (16) are fixed via a connecting assembly, wherein the connecting assembly comprises a connecting groove (24) and a connecting block (29), wherein the connecting groove (24) is formed on an outer wall at one end of the connecting rod (16), and the connecting block (29) is fixed on an outer wall at one side of the scraper (13).

6. The air buffer tank for nitrogen preparation according to claim 5, characterized in that: The connection block (29) is slidably matched with the connection groove (24), and connection holes (25) are provided on the inner walls on both sides of the connection groove (24).

7. The air buffer tank for nitrogen preparation according to claim 6, characterized in that: The outer walls of both sides of the connection block (29) are provided with movable cavities (27), the inner wall of the movable cavity (27) is slidably connected with an insertion rod (26), and the insertion rod (26) is limitedly matched with the connection hole (25).

8. The air buffer tank for nitrogen preparation according to claim 7, characterized in that: A connecting spring (28) is fixed to the outer wall of one side of the insert rod (26), and the other end of the connecting spring (28) is connected to the inner wall of the moving cavity (27).

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