Molecular sieve nitrogen making machine convenient to replace

Abstract

The utility model discloses a molecular sieve nitrogen making machine convenient to replace, and relates to the technical field of molecular sieve nitrogen making machines, the molecular sieve nitrogen making machine comprises a box body, four corners of the bottom end of the box body are fixedly connected with supporting legs, the top of the front end of the box body is rotatably connected with a box door, and the bottom end of the box body is fixedly connected with a dust discharge port. The top end of the box body is fixedly connected with an output port, the bottom of the right end of the box body is fixedly connected with an air compressor, and the output end and the input end of the air compressor are both fixedly connected with connecting pipes. According to the molecular sieve nitrogen making machine convenient to replace, the carbon molecular sieve plate is pulled, so that the inner wall of the carbon molecular sieve plate slides on the outer wall of the sliding rail, meanwhile, the carbon molecular sieve plate pushes the limiting block, so that the limiting block rotates and is not clamped with the inner wall of the carbon molecular sieve plate any more, and then the carbon molecular sieve plate can be taken down; the carbon molecular sieve plate is replaced or maintained, so that the effect of conveniently replacing the carbon molecular sieve plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of molecular sieve nitrogen generators, and particularly relates to a molecular sieve nitrogen generator which is convenient to replace. Background Art

[0002] A nitrogen generator refers to a device that uses air as a raw material and separates oxygen and nitrogen in it by physical methods to obtain nitrogen. According to different classification methods, namely cryogenic air separation method, molecular sieve air separation method PSA, and membrane air separation method, nitrogen generators used in industry can be divided into three types. A nitrogen generator is a nitrogen production device designed and manufactured according to the pressure swing adsorption technology. The nitrogen generator uses high-quality imported carbon molecular sieve (CMS) as an adsorbent and separates air at normal temperature by the pressure swing adsorption principle (PSA) to produce high-purity nitrogen.

[0003] For example, Chinese patent document CN215782558U discloses a nitrogen generator convenient for replacing molecular sieves, which includes a nitrogen generator tank body, a driving chamber, and molecular sieves. The driving chamber is fixedly connected to the nitrogen generator tank body. The molecular sieves are detachably installed inside the nitrogen generator body through a molecular sieve clamping mechanism. A rotating shaft is rotatably connected inside the driving chamber. A turntable is fixedly connected to the rotating shaft and is rotatably connected inside the driving chamber through the rotating shaft. A slide bar is slidably connected inside the driving chamber. A slider is slidably connected inside the slide bar, and the slider is rotatably connected to the surface of the turntable through a pin shaft. A movable clamping plate is fixedly connected to the slide bar. A fixed clamping plate is arranged inside the driving chamber and corresponds to the position of the movable clamping plate. A ratchet wheel is fixedly arranged on the rotating shaft. A swing rod is rotatably connected to the rotating shaft. A driving component is used to drive the swing rod to swing reciprocally. The utility model realizes the rapid installation of molecular sieves. By reversing the operation of the motor, the molecular sieves can be quickly disassembled, which is convenient for quick replacement and maintenance.

[0004] The following problems exist in the prior art:

[0005] When the molecular sieve nitrogen generator of the prior art is in use, the control entering the nitrogen generator is not filtered and purified, which reduces the practicability of the device. At the same time, when the molecular sieve nitrogen generator of the prior art fixes or disassembles the molecular sieve, it needs to be driven by a motor, which reduces the practicability of the device. Content of the Utility Model

[0006] The utility model provides a molecular sieve nitrogen generator which is convenient to replace to solve the problems put forward in the above background art.

[0007] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A molecular sieve nitrogen generator that is convenient for replacement, including a box body. Four corners of the bottom end of the box body are fixedly connected with support legs. The top of the front end of the box body is rotatably connected with a box door. The bottom end of the box body is fixedly connected with a dust discharge port. The top end of the box body is fixedly connected with an output port. The bottom of the right end of the box body is fixedly connected with an air compressor. The output end and the input end of the air compressor are both fixedly connected with connecting pipes. The outer wall of the connecting pipe at the output end is fixedly connected with the bottom of the box body. The middle of the inner cavity of the box body is fixedly connected with a connecting plate. The left end of the box body is fixedly connected with a cleaning mechanism. The inner wall of the box body is inserted with a filtering mechanism. The top of the inner cavity of the box body is slidably connected with a molecular sieve plate mechanism. The cleaning mechanism includes a motor. The right end of the motor is fixedly connected with the left end of the box body. The filtering mechanism includes a filter screen. The outer wall of the filter screen is inserted into the inner wall of the box body. The right end of the filter screen is fixedly connected with a pulling plate. The molecular sieve plate mechanism includes a carbon molecular sieve plate. The outer wall of the carbon molecular sieve plate is slidably connected with the top of the inner cavity of the box body.

[0008] Preferably: The output end of the motor is fixedly connected with a threaded rod. The outer wall of the threaded rod is threadedly connected with a first slider. Both the front and rear ends of the first slider are fixedly connected with connecting rods. One end of the connecting rod is fixedly connected with a second slider.

[0009] Preferably: A guide rod is slidably connected to the inner wall of the second slider. One end of the guide rod is fixedly connected with the bottom of the inner cavity of the box body. Cleaning brushes are fixedly connected to the tops of the first slider and the second slider. The outer wall of the cleaning brush abuts against the bottom end of the filter screen.

[0010] Preferably: Sealing blocks are fixedly connected to the right parts of the front and rear ends of the filter screen. The outer wall of the sealing block is clamped with the inner wall of the box body. Guide strips are fixedly connected to the front and rear ends of the filter screen. The outer wall of the guide strip is slidably connected with the inner wall of the box body.

[0011] Preferably: A plug rod is inserted into the left part of the filter screen. The outer wall of the plug rod is slidably connected with the inner wall of the connecting plate. A spring is fixedly connected to the top of the plug rod. One end of the spring is fixedly connected with the outer wall of the connecting plate.

[0012] Preferably: Slide rails are slidably connected to the left and right parts of the carbon molecular sieve plate. The outer wall of the slide rail is fixedly connected with the top of the inner cavity of the box body. A rotating shaft is fixedly connected to the front part of the slide rail. A limiting block is rotatably connected to the outer wall of the rotating shaft. A torsion spring is fixedly connected to the outer wall of the limiting block. The inner wall of the torsion spring is movably sleeved with the outer wall of the rotating shaft. One end of the torsion spring is fixedly connected with the inner wall of the slide rail. The outer wall of the limiting block is inserted into the inner wall of the carbon molecular sieve plate.

[0013] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is as follows: The present utility model provides a molecular sieve nitrogen generator that is convenient for replacement. By starting the air compressor, the outside air is transported into the box through the connecting pipe. The air entering the box is filtered by the filter screen, and the impurities in the air are filtered out, avoiding the influence of the impurities in the air on the molecular sieve plate mechanism, thus achieving the filtering effect.

[0014] The present utility model provides a molecular sieve nitrogen generator that is convenient for replacement. By pulling the carbon molecular sieve plate, the inner wall of the carbon molecular sieve plate slides on the outer wall of the slide rail. At the same time, the carbon molecular sieve plate pushes the limit block, causing the limit block to rotate and no longer be clamped with the inner wall of the carbon molecular sieve plate. Subsequently, the carbon molecular sieve plate can be removed for replacement or maintenance, achieving the effect of facilitating the replacement of the carbon molecular sieve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the structural schematic diagram of the front view of the present utility model;

[0016] Figure 2 is the sectional structural schematic diagram of the front view of the present utility model;

[0017] Figure 3 is the structural schematic diagram of the cleaning mechanism and the filtering mechanism of the present utility model;

[0018] Figure 4 is the present utility model Figure 3 the enlarged structural schematic diagram at A in;

[0019] Figure 5 is the enlarged partial structural schematic diagram of the carbon molecular sieve of the present utility model.

[0020] In the figure: 1. Box body; 11. Support legs; 12. Box door; 13. Dust exhaust port; 14. Output port; 15. Air compressor; 16. Connecting pipe; 17. Connecting plate; 2. Cleaning mechanism; 21. Motor; 22. Threaded rod; 23. Slide block one; 24. Connecting rod; 25. Slide block two; 26. Guide rod; 27. Cleaning brush; 3. Filtering mechanism; 31. Pulling plate; 32. Filter screen; 33. Sealing block; 34. Guide strip; 35. Insertion rod; 36. Spring; 4. Molecular sieve plate mechanism; 41. Carbon molecular sieve plate; 42. Slide rail; 43. Rotating shaft; 44. Torsion spring; 45. Limit block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] As Figures 1 - 5As shown in the figure, a molecular sieve nitrogen generator that is convenient for replacement includes a box body 1. Four corners of the bottom end of the box body 1 are fixedly connected with support legs 11. The top of the front end of the box body 1 is rotatably connected with a box door 12. The bottom end of the box body 1 is fixedly connected with a dust discharge port 13. The top end of the box body 1 is fixedly connected with an output port 14. The bottom of the right end of the box body 1 is fixedly connected with an air compressor 15. The output end and the input end of the air compressor 15 are both fixedly connected with a connecting pipe 16. The outer wall of the connecting pipe 16 at the output end is fixedly connected with the bottom of the box body 1. The middle part of the inner cavity of the box body 1 is fixedly connected with a connecting plate 17. A cleaning mechanism 2 is fixedly connected to the left end of the box body 1. A filtering mechanism 3 is inserted into the inner wall of the box body 1. A molecular sieve plate mechanism 4 is slidably connected to the top of the inner cavity of the box body 1. The cleaning mechanism 2 includes a motor 21. The right end of the motor 21 is fixedly connected with the left end of the box body 1. The filtering mechanism 3 includes a filter screen 32. The outer wall of the filter screen 32 is inserted into the inner wall of the box body 1. The right end of the filter screen 32 is fixedly connected with a pull plate 31. The molecular sieve plate mechanism 4 includes a carbon molecular sieve plate 41. The outer wall of the carbon molecular sieve plate 41 is slidably connected to the top of the inner cavity of the box body 1.

[0023] The air is filtered by the filtering mechanism 3 to filter out impurities in the air. Then, the filtering mechanism 3 is cleaned by the cleaning mechanism 2 to prevent the filtering mechanism 3 from being blocked. Subsequently, the filtered air is purified by the molecular sieve plate mechanism 4.

[0024] As Figure 2 、 Figure 3 shown, the output end of the motor 21 is fixedly connected with a threaded rod 22. The outer wall of the threaded rod 22 is threadedly connected with a first slider 23. Both the front and rear ends of the first slider 23 are fixedly connected with connecting rods 24. One end of the connecting rod 24 is fixedly connected with a second slider 25.

[0025] By starting the motor 21, the motor 21 drives the threaded rod 22 to rotate, causing the first slider 23 to slide on the outer wall of the threaded rod 22. The first slider 23 drives the connecting rod 24 to move synchronously, and the connecting rod 24 drives the second slider 25 to move synchronously.

[0026] As Figure 2 、 Figure 3 shown, a guide rod 26 is slidably connected to the inner wall of the second slider 25. One end of the guide rod 26 is fixedly connected with the bottom of the inner cavity of the box body 1. Cleaning brushes 27 are fixedly connected to the tops of the first slider 23 and the second slider 25. The outer wall of the cleaning brush 27 abuts against the bottom end of the filter screen 32.

[0027] When the second slider 25 moves, it moves on the outer wall of the guide rod 26. The guide rod 26 limits and guides the second slider 25, so that the first slider 23 and the guide rod 26 will not shift when moving. Thus, the first slider 23 and the guide rod 26 drive the cleaning brush 27 to move synchronously, and the cleaning brush 27 cleans the bottom end of the filter screen 32, avoiding the accumulation of impurities at the bottom end of the cleaning brush 27, and achieving the effect of cleaning and preventing blockage.

[0028] As Figure 2 , Figure 3 shown, sealing blocks 33 are fixedly connected to the right parts of the front and rear ends of the filter screen 32. The outer wall of the sealing block 33 is clamped with the inner wall of the box body 1. Guide strips 34 are fixedly connected to the front and rear ends of the filter screen 32. The outer wall of the guide strip 34 is slidably connected to the inner wall of the box body 1.

[0029] By starting the air compressor 15, the outside air is conveyed into the box body 1 through the connecting pipe 16. The air entering the box body 1 is filtered by the filter screen 32, and the impurities in the air are filtered out, avoiding the influence of the impurities in the air on the molecular sieve plate mechanism 4, and achieving the filtering effect.

[0030] As Figures 2 - 4 shown, a plug rod 35 is inserted into the left part of the filter screen 32. The outer wall of the plug rod 35 is slidably connected to the inner wall of the connecting plate 17. A spring 36 is fixedly connected to the top of the plug rod 35. One end of the spring 36 is fixedly connected to the outer wall of the connecting plate 17.

[0031] When the filter screen 32 needs to be replaced, directly pull the pull plate 31 to drive the filter screen 32 to slide on the inner wall of the box body 1. The filter screen 32 drives the guide strip 34 to slide synchronously on the inner wall of the box body 1. The guide strip 34 guides the filter screen 32 so that the filter screen 32 will not shift when moving. When the filter screen 32 moves, the inner wall of the filter screen 32 rubs against the outer wall of the plug rod 35, causing the plug rod 35 to move upward. The plug rod 35 drives the spring 36 to stretch, so that the plug rod 35 disengages from the inner wall of the filter screen 32 and is no longer inserted into the inner wall of the filter screen 32. Thus, the filter screen 32 can be removed and replaced, achieving the effect of being convenient for replacement.

[0032] As Figure 2 , Figure 5 shown, slide rails 42 are slidably connected to the left and right parts of the carbon molecular sieve plate 41. The outer wall of the slide rail 42 is fixedly connected to the top of the inner cavity of the box body 1. A rotating shaft 43 is fixedly connected to the front part of the slide rail 42. A limiting block 45 is rotatably connected to the outer wall of the rotating shaft 43. A torsion spring 44 is fixedly connected to the outer wall of the limiting block 45. The inner wall of the torsion spring 44 is movably sleeved on the outer wall of the rotating shaft 43. One end of the torsion spring 44 is fixedly connected to the inner wall of the slide rail 42. The outer wall of the limiting block 45 is inserted into the inner wall of the carbon molecular sieve plate 41.

[0033] When it is necessary to replace the carbon molecular sieve plate 41, directly pull the carbon molecular sieve plate 41, so that the inner wall of the carbon molecular sieve plate 41 slides on the outer wall of the slide rail 42. At the same time, the carbon molecular sieve plate 41 pushes the limit block 45, causing the limit block 45 to rotate and no longer be clamped with the inner wall of the carbon molecular sieve plate 41. Subsequently, the carbon molecular sieve plate 41 can be removed. During installation, rotate the limit block 45 towards the inner wall of the slide rail 42, and then slide the inner wall of the carbon molecular sieve plate 41 into connection with the outer wall of the slide rail 42. When the carbon molecular sieve plate 41 can no longer slide on the outer wall of the slide rail 42, at this time, under the action of the elastic force of the torsion spring 44, the outer wall of the limit block 45 is clamped with the inner wall of the carbon molecular sieve plate 41, thereby limiting the carbon molecular sieve plate 41 and making the carbon molecular sieve plate 41 unable to move without external force, achieving the effect of facilitating the replacement of the carbon molecular sieve plate 41.

[0034] Working principle of the utility model: When in use, start the air compressor 15, and convey the outside air into the box body 1 through the connecting pipe 16. The air entering the box body 1 is filtered by the filter screen 32 to filter out impurities in the air, avoiding the influence of impurities in the air on the molecular sieve plate mechanism 4, and achieving the filtering effect. The filtered air is purified by the carbon molecular sieve plate 41, and the purified gas is discharged from the output port 14 and can be stored. When the filter screen 32 filters the air, by regularly starting the motor 21, the motor 21 drives the threaded rod 22 to rotate, so that the first slider 23 slides on the outer wall of the threaded rod 22. The first slider 23 drives the connecting rod 24 to move synchronously, and the connecting rod 24 drives the second slider 25 to move synchronously, so that the second slider 25 moves on the outer wall of the guide rod 26. The guide rod 26 limits and guides the second slider 25, so that the first slider 23 and the guide rod 26 will not deviate when moving. Thus, the first slider 23 and the guide rod 26 drive the cleaning brush 27 to move synchronously, and the cleaning brush 27 sweeps the bottom end of the filter screen 32 to avoid the accumulation of impurities at the bottom end of the cleaning brush 27, achieving the effect of cleaning and preventing blockage. When the filter screen 32 needs to be replaced, directly pull the pull plate 31 to drive the filter screen 32 to slide on the inner wall of the box body 1. The filter screen 32 drives the guide strip 34 to slide on the inner wall of the box body 1 synchronously. The guide strip 34 guides the filter screen 32, so that the filter screen 32 will not deviate when moving. When the filter screen 32 moves, the inner wall of the filter screen 32 rubs against the outer wall of the insertion rod 35, so that the insertion rod 35 moves upward, and the insertion rod 35 drives the spring 36 to stretch, so that the insertion rod 35 disengages from the inner wall of the filter screen 32 and no longer inserts into the inner wall of the filter screen 32. Thus, the filter screen 32 can be removed and replaced, achieving the effect of convenient replacement. When the carbon molecular sieve plate 41 needs to be replaced, directly pull the carbon molecular sieve plate 41 to make the inner wall of the carbon molecular sieve plate 41 slide on the outer wall of the slide rail 42. At the same time, the carbon molecular sieve plate 41 pushes the limit block 45, so that the limit block 45 rotates and no longer engages with the inner wall of the carbon molecular sieve plate 41. Then the carbon molecular sieve plate 41 can be removed. When installing, make the limit block 45 rotate towards the inner wall of the slide rail 42, and then slide the inner wall of the carbon molecular sieve plate 41 to be connected with the outer wall of the slide rail 42. When the carbon molecular sieve plate 41 can no longer slide on the outer wall of the slide rail 42, at this time, under the action of the elastic force of the torsion spring 44 of the limit block 45, the outer wall of the limit block 45 engages with the inner wall of the carbon molecular sieve plate 41, thereby limiting the carbon molecular sieve plate 41, so that the carbon molecular sieve plate 41 cannot move without external force, achieving the effect of convenient replacement of the carbon molecular sieve plate 41. Thus, the use experience is greatly improved.

[0035] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A molecular sieve nitrogen generator that is easy to replace, comprising a housing (1), characterized in that: The four corners of the bottom end of the box (1) are fixedly connected to support legs (11); the top of the front end of the box (1) is rotatably connected to a box door (12); the bottom end of the box (1) is fixedly connected to a dust exhaust port (13); the top of the box (1) is fixedly connected to an output port (14); the bottom of the right end of the box (1) is fixedly connected to an air compressor (15); the output end and the input end of the air compressor (15) are fixedly connected to a connecting pipe (16); the outer wall of the connecting pipe (16) at the output end is fixedly connected to the bottom of the box (1); the middle of the inner cavity of the box (1) is fixedly connected to a connecting plate (17); the left end of the box (1) is fixedly connected to a connecting plate (17); The cleaning mechanism (2) is fixedly connected to the end thereof, the inner wall of the box body (1) is plugged with a filtering mechanism (3), the top of the inner cavity of the box body (1) is slidably connected with a molecular sieve plate mechanism (4), the cleaning mechanism (2) comprises a motor (21), the right end of the motor (21) is fixedly connected to the left end of the box body (1), the filtering mechanism (3) comprises a filter screen (32), the outer wall of the filter screen (32) is plugged with the inner wall of the box body (1), the right end of the filter screen (32) is fixedly connected with a pull plate (31), and the molecular sieve plate mechanism (4) comprises a carbon molecular sieve plate (41), the outer wall of the carbon molecular sieve plate (41) is slidably connected to the top of the inner cavity of the box body (1).

2. The molecular sieve nitrogen generator that is easy to replace according to claim 1 is characterized in that: The output end of the motor (21) is fixedly connected to a threaded rod (22), the outer wall of the threaded rod (22) is threadedly connected to a slider 1 (23), the front and rear ends of the slider 1 (23) are fixedly connected to a connecting rod (24), and one end of the connecting rod (24) is fixedly connected to a slider 2 (25).

3. The molecular sieve nitrogen generator that is easy to replace according to claim 2 is characterized in that: The inner wall of the second slider (25) is slidably connected to a guide rod (26), one end of which is fixedly connected to the bottom of the inner cavity of the box body (1), and the tops of the first slider (23) and the second slider (25) are fixedly connected to a cleaning brush (27), the outer wall of the cleaning brush (27) overlaps the bottom end of the filter screen (32).

4. The molecular sieve nitrogen generator that is easy to replace according to claim 1 is characterized in that: The right parts of the front and rear ends of the filter screen (32) are fixedly connected to sealing blocks (33), the outer wall of the sealing block (33) is clamped with the inner wall of the box body (1), and the front and rear ends of the filter screen (32) are fixedly connected to guide strips (34), the outer wall of the guide strips (34) is slidably connected to the inner wall of the box body (1).

5. The molecular sieve nitrogen generator that is easy to replace according to claim 1 is characterized in that: A plug rod (35) is inserted into the left portion of the filter screen (32), the outer wall of the plug rod (35) is slidably connected to the inner wall of the connecting plate (17), the top of the plug rod (35) is fixedly connected to a spring (36), one end of the spring (36) is fixedly connected to the outer wall of the connecting plate (17).

6. The molecular sieve nitrogen generator that is easy to replace according to claim 1 is characterized in that: The left and right parts of the carbon molecular sieve plate (41) are both slidably connected to a slide rail (42), the outer wall of the slide rail (42) is fixedly connected to the top of the inner cavity of the box body (1), the front part of the slide rail (42) is fixedly connected to a rotating shaft (43), the outer wall of the rotating shaft (43) is rotatably connected to a limit block (45), the outer wall of the limit block (45) is fixedly connected to a torsion spring (44), the inner wall of the torsion spring (44) is movably sleeved with the outer wall of the rotating shaft (43), one end of the torsion spring (44) is fixedly connected to the inner wall of the slide rail (42), and the outer wall of the limit block (45) is plugged into the inner wall of the carbon molecular sieve plate (41).

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