A recovery device for a nitrogen generator

Abstract

The application discloses a kind of recovery device for nitrogen making machine, it is related to nitrogen making machine technical field, including processing table, the top of the processing table is fixedly installed with nitrogen making mechanism, the surface of nitrogen making mechanism is fixedly penetrated with inlet pipe, the surface of inlet pipe is fixedly installed with fixed pipe, the top of fixed pipe is rotatably penetrated with inlet valve, the surface of fixed pipe is fixedly installed with round pipe, knock plate is rotatably installed on the inner wall of round pipe, the surface of knock plate is fixedly installed with elastic sheet, the inner wall of round pipe is fixedly installed with clamping plate, the inner and outer walls of round pipe are rotatably penetrated with baffle, by triggering the rotation of baffle, avoid the situation of leakage when inlet pipe continues to discharge oxygen-rich waste gas, realize the effective management of oxygen-rich waste gas leakage, effectively reduce the waste of resources when leakage occurs.

Description

Technical Field

[0001] This invention relates to the field of nitrogen generator technology, specifically to a nitrogen generator recovery device. Background Technology

[0002] A nitrogen generator is an industrial device used to separate nitrogen from the air to produce high-purity nitrogen for various applications.

[0003] Patent publication number CN214734538U relates to a recovery device for a nitrogen generator, including a nitrogen generator body. A placement box is fixedly connected to the bottom of the nitrogen generator body. An exhaust pipe is provided on the left side of the nitrogen generator body. The other end of the exhaust pipe passes through the interior of the placement box and is connected to a blower. The bottom of the blower is fixedly connected to the bottom of the inner wall of the placement box. A connecting pipe is connected to the output end of the blower. A connecting block is connected to the right side of the connecting pipe. This patent solves the problem that existing nitrogen generators do not have the function of recovering oxygen-enriched waste gas, which easily leads to the waste of oxygen-enriched waste gas and reduces the practicality of the nitrogen generator.

[0004] The aforementioned patent has the function of recovering oxygen from oxygen-enriched waste gas. By setting up an outlet pipe and a blower, it effectively reduces oxygen waste and emissions, thereby reducing the impact on the environment and contributing to sustainable development. However, during long-term use, the aging and wear of connecting parts or changes in the operating environment may cause leakage of oxygen-enriched waste gas in the outlet pipe. Gas leakage may lead to environmental problems because unrecovered oxygen is released into the atmosphere, which may cause unnecessary environmental impact. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a recovery device for nitrogen generators, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a nitrogen generator recovery device, comprising a processing table, a nitrogen generator mechanism fixedly mounted on the top of the processing table, and an air intake device and a conveying device; wherein, the air intake device comprises an air intake pipe, a fixed pipe, an air intake valve, a circular pipe, a striking plate, a spring, a clamping plate, and a baffle; oxygen-enriched waste gas inside the nitrogen generator mechanism enters the interior of the fixed pipe through the air intake pipe; the air intake pipe is fixedly inserted through the surface of the nitrogen generator mechanism; the fixed pipe is fixedly installed on the surface of the air intake pipe; the air intake valve rotates through the top of the fixed pipe; and the circular pipe is fixedly installed on the fixed pipe. The striking plate is rotatably mounted on the inner wall of the circular tube, the spring is fixedly mounted on the surface of the striking plate, the clamping plate is fixedly mounted on the inner wall of the circular tube, and the baffle rotates through the inner and outer walls of the circular tube. A rubber seal is provided on the inner wall of the circular tube. The movement of high-pressure gas drives the striking plate to rotate towards the circular tube, and the rotation of the striking plate drives the spring to move towards the circular tube. The inner and outer walls of the air inlet pipe are rotatably penetrated by baffles, and the baffles are provided with clamping grooves. The striking plate intermittently contacts the inner wall of the circular tube to produce a sound, which warns the operator that a leak has occurred, ensuring that the operator can perform maintenance in time when a leak occurs.

[0007] According to the above technical solution, an arc surface is formed on the surface of the striking plate near the clamping plate, a first spiral spring is provided between the striking plate and the round tube, an inclined surface is formed on the surface of the clamping plate near the striking plate, the clamping plate contacts the groove of the baffle, and the clamping plate separates from the groove of the baffle when it moves, so that the rotation limit of the clamping plate on the baffle is released. A second spiral spring is provided between the baffle and the round tube. By sealing the inside of the air intake pipe, it is prevented that the air intake pipe will continue to emit oxygen-rich exhaust gas after leakage, effectively reducing the waste of resources and thus reducing the damage caused by leakage.

[0008] According to the above technical solution, the conveying device includes a mounting box, a drive motor, and fan blades. The output end of the drive motor rotates, causing the fan blades to rotate, so that the oxygen-enriched waste gas inside the mounting box moves towards the filter holes under the influence of wind. The mounting box is fixedly installed on the inner wall of the processing table, the drive motor is fixedly installed on the inner wall of the mounting box, and the fan blades are fixedly installed on the output end of the drive motor. Filter holes are opened on the surface of the mounting box away from the fixed pipe. The wind generated by the rotation of the fan blades drives the flow of oxygen-enriched waste gas, effectively improving the efficiency of the recycling work. At the same time, the dust particles in the oxygen-enriched waste gas are intercepted through the filter holes on the mounting box, improving the quality of the oxygen-enriched waste gas.

[0009] According to the above technical solution, an L-plate is fixedly installed on the output end of the drive motor. A scraper slides through the side of the L-plate away from the drive motor. A baffle is fixedly installed at the bottom of the inner wall of the mounting box. A collection box is fixedly installed through the bottom of the mounting box. A gate-shaped plate slides through the top of the mounting box. After the scraper deforms, it separates from the dust particles. The dust particles move into the baffle due to inertia. The L-plate contacts the inner wall of the mounting box. A spring is provided between the scraper and the L-plate. An arc surface is provided on the baffle. The interior of the collection box is connected to the interior of the mounting box through the baffle. An arc surface is provided at the bottom of the gate-shaped plate. By collecting the dust particles inside the mounting box, the wear of the dust particles on the filter holes is reduced, and the service life of the filter holes is effectively extended.

[0010] According to the above technical solution, the method further includes an adsorption device and an exhaust device; the adsorption device includes a rectangular box, a long tube, and an adsorption box. The oxygen-enriched waste gas inside the rectangular box enters the interior of the adsorption box. The rectangular box is fixedly installed on the bottom of the inner wall of the processing table. The long tube is fixedly inserted through the surface of the rectangular box near the mounting box. The adsorption box slides through the inner and outer walls of the rectangular box. A rectangular groove is opened on the surface of the rectangular box near the long tube. The surface of the long tube away from the rectangular box contacts the surface of the mounting box. The surface of the adsorption box has air holes. A granular molecular sieve is set inside the adsorption box. By setting a granular molecular sieve inside the adsorption box, when the oxygen-enriched waste gas passes through the air holes and enters the interior of the adsorption box above, the oxygen in the oxygen-enriched waste gas is absorbed by the granular molecular sieve, thereby completing the recovery of the oxygen-enriched waste gas.

[0011] According to the above technical solution, a guide tube is rotatably installed on the rectangular groove of the rectangular box. A contact plate slides through the surface of the adsorption box near the guide tube. A lifting plate is fixedly installed on the surface of the contact plate. A long plate is fixedly installed on the surface of the lifting plate. The lifting plate moves downward, causing the long plate to move downward. The downward movement of the long plate causes the molecular sieve particles inside the adsorption box to move. An arc surface four is formed on the surface of the contact plate near the guide tube. The arc surface four contacts the surface of the guide tube. A No. 3 spiral spring is set between the guide tube and the rectangular box. A second spring is set between the contact plate and the adsorption box. By setting the second spring, the contact plate is squeezed when it moves, thereby generating energy through the elasticity of the second spring to provide power for the reset of the contact plate.

[0012] According to the above technical solution, the exhaust device includes an exhaust pipe, a connecting pipe, and an exhaust valve. The exhaust valve releases the seal inside the connecting pipe, allowing the exhaust gas to enter the interior of the recovery pipe through the connecting pipe. The exhaust pipe is fixedly inserted through the inner and outer walls of the rectangular box. The connecting pipe is fixedly installed on the surface of the exhaust pipe away from the rectangular box. The exhaust valve is rotatably inserted through the top of the connecting pipe. The exhaust pipe is fixedly inserted through the inner and outer walls of the processing table. The exhaust valve has a circular groove. By rotating the exhaust valve, the state inside the connecting pipe is changed, ensuring that the exhaust gas can only be discharged with the authorization of the operator, thus ensuring the safety of the operation.

[0013] According to the above technical solution, a stop plate slides through the surface of the connecting pipe away from the outlet pipe, a short block is fixedly installed on the surface of the connecting pipe, a limit plate slides through the surface of the short block, a semi-circular plate is slidably installed on the top of the connecting pipe, and a cylinder is fixedly installed on the surface of the semi-circular plate near the outlet valve. The movement of the semi-circular plate drives the cylinder to move away from the outlet valve. When the cylinder moves, it separates from the circular groove on the outlet valve, thus releasing the cylinder's rotation limit on the outlet valve. A limit groove is opened on the stop plate, a spring three is provided between the stop plate and the connecting pipe, a spherical surface is opened at the bottom of the limit plate, a spring four is provided between the limit plate and the short block, a spring five is provided between the semi-circular plate and the connecting pipe, and the cylinder contacts the inner wall of the circular groove of the outlet valve. By setting the cylinder to limit the rotation of the outlet valve, the operator can only rotate the outlet valve when the recovery pipe is in close contact with the connecting pipe, reducing the occurrence of operator misoperation.

[0014] This invention provides a recovery device for a nitrogen generator. It has the following beneficial effects:

[0015] (1) The nitrogen generator uses a recovery device. The striking plate continues to rotate, which squeezes the spring and causes the spring to deform. At the same time, the striking plate contacts the inner wall of the round tube. The intermittent contact between the striking plate and the inner wall of the round tube generates a sound signal to remind the operator that there is a leak between the air inlet pipe and the fixed pipe, so that the operator can replace and maintain it in time, which helps the normal operation of the recovery. The No. 2 spiral spring that deforms between the baffle and the round tube rotates and resets, driving the baffle to rotate. When the baffle rotates to the designated position, the inside of the air inlet pipe becomes closed. By triggering the rotation of the baffle, the air inlet pipe continues to discharge oxygen-rich waste gas when a leak occurs, thus achieving effective management of oxygen-rich waste gas leakage and effectively reducing the waste of resources when a leak occurs.

[0016] (2) The nitrogen generator uses a recovery device. The L plate rotates and drives the scraper to move. When the scraper moves, it is resisted by the inner wall of the mounting box, causing the scraper to move towards the L plate. By setting a sliding scraper, the scraper can clean the dead corner area that is difficult to clean in the mounting box, ensuring that there are no dead corners or residual dust particles, effectively improving the cleaning effect. After the scraper deforms, it separates from the dust particles. The dust particles continue to move through the baffle and are received inside the collection box. By collecting the dust particles inside the mounting box, the wear and blockage of the filter holes by the dust particles are reduced, and the filter holes are kept running efficiently, thereby effectively extending the service life of the filter holes.

[0017] (3) The nitrogen generator uses a recovery device. The No. 3 spiral spring between the guide pipe and the rectangular box is reset and drives the guide pipe to rotate towards the adsorption box below. By rotating the guide pipe up and down, the flow direction of the oxygen-rich waste gas is adjusted, so that the oxygen-rich waste gas can come into more full contact with the adsorption box, effectively improving the adsorption effect. The lifting plate moves down and drives the long plate to move down. The long plate moves down and drives the particle molecular sieve inside the adsorption box to move. By moving the long plate, the fluidity of the particle molecular sieve inside the adsorption box is effectively improved, so that the oxygen-rich waste gas can make more contact between the particle molecular sieve, thereby increasing the adsorption opportunities between the particle molecular sieve and oxygen.

[0018] (4) The nitrogen generator uses a recovery device. The limiting plate moves downward and contacts the inner wall of the limiting groove on the abutment plate, so that the limiting plate limits the movement of the abutment plate. By setting the limiting plate, it is ensured that the abutment plate can only be limited when the recovery pipe and the connecting pipe are fully connected, which improves the safety of waste gas recovery and prevents incomplete connection or loosening during the recovery process. The semi-arc plate moves and drives the cylinder to move away from the outlet valve. When the cylinder moves, it separates from the circular groove on the outlet valve. By moving the cylinder, the rotation limit of the outlet valve is released, so that the operator can only rotate the outlet valve under the correct operation, which effectively reduces the occurrence of misoperation and improves the accuracy and safety of operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the processing table of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the air intake device of the present invention;

[0022] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the internal structure of the conveying device of the present invention;

[0024] Figure 6 This is a schematic diagram of the adsorption device and the gas outlet device of the present invention;

[0025] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0026] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point C.

[0027] In the diagram: 1. Processing table; 2. Nitrogen generator; 31. Inlet pipe; 32. Fixed pipe; 33. Inlet valve; 34. Round pipe; 35. Striking plate; 36. Spring; 37. Clamping plate; 38. Baffle; 41. Mounting box; 42. Drive motor; 43. Fan blade; 44. L-plate; 45. Scraper; 46. Baffle; 47. Collection box; 48. Gate-shaped plate; 51. Rectangular box; 52. Long pipe; 53. Adsorption box; 54. Guide pipe; 55. Contact plate; 56. Lifting plate; 57. Long plate; 61. Outlet pipe; 62. Connecting pipe; 63. Outlet valve; 64. Backing plate; 65. Short block; 66. Limiting plate; 67. Semi-arc plate; 68. Cylinder. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-4One embodiment of the present invention is: a nitrogen generator recovery device, including a processing table 1, a nitrogen generator 2 fixedly installed on the top of the processing table 1, and an air intake device and a conveying device; wherein, the air intake device includes an air intake pipe 31, a fixed pipe 32, an air intake valve 33, a circular pipe 34, a striking plate 35, a spring 36, a clamping plate 37, and a baffle 38. When the air intake valve 33 is manually rotated to a designated position, the closed state inside the fixed pipe 32 is released, allowing the oxygen-rich waste gas inside the nitrogen generator 2 to enter the interior of the fixed pipe 32 through the air intake pipe 31. The air intake pipe 31 is fixedly inserted through the surface of the nitrogen generator 2, the fixed pipe 32 is fixedly installed on the surface of the air intake pipe 31, the air intake valve 33 rotates through the top of the fixed pipe 32, the circular pipe 34 is fixedly installed on the surface of the fixed pipe 32, and the striking plate 35... The spring plate 36 is fixedly installed on the surface of the striking plate 35, and the clamping plate 37 is fixedly installed on the inner wall of the round tube 34. The baffle 38 rotates through the inner and outer walls of the round tube 34. A rubber seal is provided on the inner wall of the round tube 34. The rubber seal inside the round tube 34 is pushed open by the high-pressure oxygen-enriched exhaust gas. The high-pressure oxygen-enriched exhaust gas passes through the rubber seal and is sprayed onto the surface of the striking plate 35, causing the high-pressure gas to move and drive the striking plate 35 to rotate in the direction of the round tube 34. The rotation of the striking plate 35 drives the spring plate 36 to move in the direction of the round tube 34. The baffle 38 rotates through the inner and outer walls of the air inlet pipe 31. The baffle 38 has a slot. The striking plate 35 intermittently contacts the inner wall of the round tube 34 and makes a sound, warning the operator that a leak has occurred, ensuring that the operator can perform maintenance in time when a leak occurs.

[0030] An arc surface is formed on the surface of the striking plate 35 near the clamping plate 37. A first spiral spring is provided between the striking plate 35 and the round tube 34. An inclined surface is formed on the surface of the clamping plate 37 near the striking plate 35. The clamping plate 37 contacts the groove of the baffle 38. The rotation of the striking plate 35 drives the clamping plate 37 to move away from the baffle 38. When the clamping plate 37 moves, it separates from the groove of the baffle 38, thereby releasing the rotation limit of the clamping plate 37 on the baffle 38. A second spiral spring is provided between the baffle 38 and the round tube 34. By sealing the inside of the air intake pipe 31, it prevents the air intake pipe 31 from continuing to emit oxygen-rich exhaust gas after leakage, effectively reducing resource waste and thus reducing the damage caused by leakage.

[0031] The conveying device includes a mounting box 41, a drive motor 42, and a fan blade 43. When the drive motor 42 is started, its output rotates, causing the fan blade 43 to rotate. This causes the oxygen-enriched waste gas inside the mounting box 41 to move towards the filter holes due to the influence of the wind. The mounting box 41 is fixedly installed on the inner wall of the processing table 1, the drive motor 42 is fixedly installed on the inner wall of the mounting box 41, and the fan blade 43 is fixedly installed on the output of the drive motor 42. Filter holes are provided on the surface of the mounting box 41 away from the fixed pipe 32. The wind generated by the rotation of the fan blade 43 drives the flow of oxygen-enriched waste gas, effectively improving the efficiency of the recycling work. At the same time, the dust particles in the oxygen-enriched waste gas are intercepted through the filter holes on the mounting box 41, improving the quality of the oxygen-enriched waste gas.

[0032] An L-plate 44 is fixedly mounted on the output end of the drive motor 42. A scraper 45 slides through the side of the L-plate 44 away from the drive motor 42. A baffle 46 is fixedly mounted on the bottom of the inner wall of the mounting box 41. A collection box 47 is fixedly passed through the bottom of the mounting box 41. A gate-shaped plate 48 slides through the top of the mounting box 41. The surface of the scraper 45 contacts the arc surface on the baffle 46. As the scraper 45 continues to move, it encounters resistance from the baffle 46, causing the scraper 45 to deform. After the scraper 45 deforms, it separates from the dust particles, and the dust particles are subjected to inertia. The influence of the force moves into the inside of the baffle 46, and the inner wall of the L-plate 44 and the mounting box 41 come into contact. A spring is provided between the scraper 45 and the L-plate 44. An arc surface is provided on the baffle 46. The inside of the collection box 47 is connected to the inside of the mounting box 41 through the baffle 46. An arc surface is provided at the bottom of the door-shaped plate 48. By collecting dust particles inside the mounting box 41, the wear of dust particles on the filter holes is reduced, and the service life of the filter holes is effectively extended. At the same time, the spring 1 is ejected by itself, and the deformation of the spring 1 generates energy to drive the scraper 45 to reset.

[0033] In this embodiment, during operation, the intake valve 33 is manually rotated. When the intake valve 33 is rotated to the designated position, the sealing state inside the fixed pipe 32 is released, allowing the oxygen-enriched waste gas inside the nitrogen generator 2 to enter the interior of the fixed pipe 32 through the intake pipe 31. When a leak occurs at the connection between the intake pipe 31 and the fixed pipe 32, the oxygen-enriched waste gas inside the fixed pipe 32 enters the interior of the circular pipe 34 through the notch. The continuous entry of oxygen-enriched waste gas into the circular pipe 34 causes the air pressure inside the circular pipe 34 to rise. When the air pressure inside the circular pipe 34 rises to a certain level, the rubber seal inside the circular pipe 34 is pushed open by the high-pressure oxygen-enriched waste gas. The high-pressure oxygen-enriched waste gas passes through the rubber seal and is sprayed onto the surface of the striking plate 35, causing the high-pressure gas to move and drive the striking plate 35 to rotate towards the circular pipe 34. The rotation of the striking plate 35 causes the spring piece 36 to move towards the circular pipe 34. When the spring piece 36 moves, it contacts the inner wall of the circular pipe 34. The continued rotation of the striking plate 35 compresses the spring piece 36, causing... When the spring 36 deforms, the striking plate 35 contacts the inner wall of the round tube 34. Through the elasticity of the spring 36 and the high-pressure oxygen-rich exhaust gas ejected from inside the round tube 34, the striking plate 35 intermittently contacts the inner wall of the round tube 34, producing a sound to warn the operator of a leak. As the striking plate 35 rotates, its arc surface contacts the inclined surface of the clamping plate 37, causing the striking plate 35 to rotate and move the clamping plate 37 away from the baffle 38. When the clamping plate 37 moves, it separates from the clamping groove of the baffle 38, releasing the rotation limit of the clamping plate 37 on the baffle 38. After the rotation limit of the baffle 38 is released, the second spiral spring that deformed between the baffle 38 and the round tube 34 rotates and resets, causing the baffle 38 to rotate. When the baffle 38 rotates to the designated position, the interior of the air intake pipe 31 becomes closed. By sealing the interior of the air intake pipe 31 with the baffle 38, the air intake pipe 31 is prevented from continuing to emit oxygen-rich exhaust gas in the event of a leak, thereby reducing oxygen waste.

[0034] The drive motor 42 is started, and its output rotates, driving the fan blade 43 to rotate. This causes the oxygen-rich exhaust gas inside the mounting box 41 to move towards the filter holes due to the wind force. Simultaneously, the fan blade 43 rotates and contacts the arc surface of the gate-shaped plate 48. The arc surface of the gate-shaped plate 48 is pushed by the fan blade 43, causing the fan blade 43 to rotate and move the gate-shaped plate 48 upwards. As the fan blade 43 continues to move, the contact surface with the gate-shaped plate 48 separates, causing the gate-shaped plate 48 to move downwards and reset under the influence of gravity. At the same time, the output of the drive motor 42 rotates, driving the L-plate 44 to rotate. The rotation of the L-plate 44 causes the scraper 45 to move. The scraper 45 experiences resistance from the inner wall of the mounting box 41, causing it to move towards the L-plate 44. By setting a sliding scraper 45, the... The scraper 45 can remove dust particles adhering to the dead corners of the mounting box 41, thereby improving the cleaning effect. The movement of the scraper 45 causes the dust particles on the inner wall of the mounting box 41 to move. When the scraper 45 moves to the designated position, the surface of the scraper 45 contacts the arc surface on the baffle 46. The scraper 45 continues to move and is resisted by the baffle 46, causing the scraper 45 to deform. After the scraper 45 deforms, it separates from the dust particles. The dust particles move into the baffle 46 due to inertia. The dust particles continue to move and pass through the baffle 46 and are received inside the collection box 47. At the same time, the scraper 45 continues to move and separates from the baffle 46. By collecting the dust particles inside the mounting box 41, the wear of dust particles on the filter holes is reduced, thereby effectively extending the service life of the filter holes.

[0035] Please see Figure 1-8 Based on the above embodiments, another embodiment of the present invention further includes an adsorption device and an exhaust device; the adsorption device includes a rectangular box 51, a long tube 52, and an adsorption box 53. The oxygen-rich waste gas inside the long tube 52 moves towards the rectangular box 51, and the oxygen-rich waste gas inside the rectangular box 51 enters the interior of the adsorption box 53. The rectangular box 51 is fixedly installed on the bottom of the inner wall of the processing table 1. The long tube 52 is fixedly inserted through the surface of the rectangular box 51 near the mounting box 41. The adsorption box 53 slides through the inner and outer walls of the rectangular box 51. A rectangular groove is opened on the surface of the rectangular box 51 near the long tube 52. The surface of the long tube 52 away from the rectangular box 51 contacts the surface of the mounting box 41. The surface of the adsorption box 53 is provided with air holes. A particle molecular sieve is provided inside the adsorption box 53. By providing a particle molecular sieve inside the adsorption box 53, when the oxygen-rich waste gas passes through the air holes and enters the interior of the adsorption box 53 above, the oxygen in the oxygen-rich waste gas is absorbed by the particle molecular sieve, thereby completing the recovery of the oxygen-rich waste gas.

[0036] A guide tube 54 is rotatably mounted on the rectangular groove of the rectangular box 51. A contact plate 55 slides through the surface of the adsorption box 53 near the guide tube 54. A lifting plate 56 is fixedly mounted on the surface of the contact plate 55, and a long plate 57 is fixedly mounted on the surface of the lifting plate 56. A deformable spring 2 between the contact plate 55 and the upper adsorption box 53 drives the contact plate 55 to move downward. The downward movement of the contact plate 55 drives the lifting plate 56 to move downward, and the downward movement of the lifting plate 56 drives the long plate 57 to move downward. The downward movement of the long plate 57 drives the molecular sieve particles inside the adsorption box 53 to move. An arc surface 4 is formed on the surface of the contact plate 55 near the guide tube 54, and the arc surface 4 contacts the surface of the guide tube 54. A spiral spring 3 is set between the guide tube 54 and the rectangular box 51, and a spring 2 is set between the contact plate 55 and the adsorption box 53. By setting spring 2, the contact plate 55 compresses spring 2 when it moves, thereby generating energy through the elasticity of spring 2 to provide power for the reset of the contact plate 55.

[0037] The exhaust device includes an exhaust pipe 61, a connecting pipe 62, and an exhaust valve 63. Manually rotating the exhaust valve 63 releases the seal on the inside of the connecting pipe 62, allowing exhaust gas to enter the interior of the recovery pipe through the connecting pipe. The exhaust pipe 61 is fixedly installed through the inner and outer walls of the rectangular box 51. The connecting pipe 62 is fixedly installed on the surface of the exhaust pipe 61 away from the rectangular box 51. The exhaust valve 63 rotates and is installed through the top of the connecting pipe 62. The exhaust pipe 61 is fixedly installed through the inner and outer walls of the processing table 1. The exhaust valve 63 has a circular groove. Rotating the exhaust valve 63 changes the state inside the connecting pipe 62, ensuring that exhaust gas can only be discharged with the authorization of the operator, thus ensuring operational safety.

[0038] A stop plate 64 slides through the surface of the connecting pipe 62 away from the outlet pipe 61. A short block 65 is fixedly installed on the surface of the connecting pipe 62, and a limit plate 66 slides through the surface of the short block 65. A semi-circular plate 67 is slidably installed on the top of the connecting pipe 62. A cylinder 68 is fixedly installed on the surface of the semi-circular plate 67 near the outlet valve 63. When the stop plate 64 moves, it contacts the surface of the semi-circular plate 67, causing the stop plate 64 to move towards the outlet valve 63, which in turn moves the semi-circular plate 67 away from the outlet valve 63. The movement of the semi-circular plate 67 causes the cylinder 68 to move away from the outlet valve 63. When the cylinder 68 moves, it contacts the outlet valve 61. The circular groove on valve 63 separates, releasing the rotation limit of cylinder 68 on the outlet valve 63. A limit groove is provided on the abutment plate 64. A spring three is provided between the abutment plate 64 and the connecting pipe 62. A spherical surface is provided at the bottom of the limit plate 66. A spring four is provided between the limit plate 66 and the short block 65. A spring five is provided between the semi-arc plate 67 and the connecting pipe 62. The cylinder 68 contacts the inner wall of the circular groove of the outlet valve 63. By setting the cylinder 68 to limit the rotation of the outlet valve 63, the operator can only rotate the outlet valve 63 when the recovery pipe is in close contact with the connecting pipe 62, reducing the occurrence of operator misoperation.

[0039] In this embodiment, during operation, the oxygen-enriched waste gas inside the long tube 52 moves towards the rectangular box 51. As the waste gas moves, it enters the guide tube 54, causing it to move upwards towards the adsorption box 53. The waste gas passes through the vents into the adsorption box 53, where the oxygen is absorbed by the granular molecular sieve. Simultaneously, the upward movement of the gate plate 48 releases the pressure on the top of the guide tube 54. The deformed No. 3 spiral spring between the guide tube 54 and the rectangular box 51 resets, causing the guide tube 54 to rotate downwards towards the adsorption box 53. This rotation of the guide tube 54 changes the direction of the oxygen-enriched waste gas, thereby increasing the interaction between the waste gas and the adsorption sieve. The contact between the adsorption box 53 and the guide tube 54 is improved, thereby enhancing the adsorption effect of the adsorption box 53. When the guide tube 54 rotates, the pushing force on the contact plate 55 is released, causing the deformed spring 2 between the contact plate 55 and the upper adsorption box 53 to move the contact plate 55 downward. The downward movement of the contact plate 55 causes the lifting plate 56 to move downward, and the downward movement of the lifting plate 56 causes the long plate 57 to move downward. The downward movement of the long plate 57 causes the granular molecular sieve inside the adsorption box 53 to move. At the same time, when the contact plate 55 moves to the designated position, the surface in contact with the guide tube 54 separates. The long plate improves the fluidity of the granular molecular sieve, increasing the opportunity for the granular molecular sieve inside the adsorption box 53 to contact the oxygen-rich waste gas, thereby improving the adsorption efficiency of the granular molecular sieve.

[0040] When exhaust gas needs to be discharged for recycling, the recycling pipe is manually inserted into the connecting pipe 62. As the recycling pipe moves, it contacts the surface of the abutment plate 64, causing the abutment plate 64 to move towards the exhaust valve 63. When the abutment plate 64 reaches the designated position, the spherical surface at the bottom of the limiting plate 66 separates from the top of the abutment plate 64. Under the influence of spring four, the limiting plate 66 moves downwards, contacting the inner wall of the limiting groove on the abutment plate 64. This limits the movement of the abutment plate 64. By setting the limiting plate 66, the abutment plate 64 can only be limited when the recycling pipe is in close contact with the connecting pipe 62, thereby improving safety during exhaust gas recycling. As plate 64 moves, it contacts the surface of the semi-arc plate 67, causing plate 64 to move towards the exhaust valve 63, which in turn moves the semi-arc plate 67 away from the exhaust valve 63. The movement of the semi-arc plate 67 causes the cylinder 68 to move away from the exhaust valve 63. When the cylinder 68 moves, it separates from the groove on the exhaust valve 63, releasing the rotation limit of the cylinder 68 on the exhaust valve 63. The exhaust valve 63 can then be manually rotated, releasing the seal of the exhaust valve 63 on the inside of the connecting pipe 62, allowing the exhaust gas to enter the inside of the recovery pipe through the connecting pipe 62. By setting the cylinder 68, the operator can only rotate the exhaust valve 63 under the correct conditions, reducing the occurrence of operator error.

[0041] 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 recovery device for a nitrogen generator, comprising a processing table (1), characterized in that: The top of the processing table (1) is fixedly equipped with a nitrogen generating mechanism (2), and also includes an air inlet device, a conveying device, an adsorption device and an air outlet device. The air intake device includes an air intake pipe (31), a fixed pipe (32), an air intake valve (33), a round pipe (34), a striking plate (35), a spring (36), a clamping plate (37), and a baffle (38). The air intake pipe (31) is fixedly inserted through the inner and outer walls of the nitrogen generating mechanism (2). The fixed pipe (32) is fixedly installed on the surface of the air intake pipe (31). The air intake valve (33) rotates through the top of the fixed pipe (32). The round pipe (34) is fixedly installed on the fixed pipe (35). 2) The striking plate (35) is rotatably mounted on the inner wall of the round tube (34), the spring piece (36) is fixedly mounted on the surface of the striking plate (35), the clamping plate (37) is fixedly mounted on the inner wall of the round tube (34), the baffle (38) rotatably passes through the inner and outer walls of the round tube (34), the inner wall of the round tube (34) is provided with a rubber seal, the inner and outer walls of the air inlet pipe (31) are rotatably passed through the baffle (38), and the baffle (38) is provided with a slot; The striking plate (35) has an arc surface on the surface near the card plate (37). A first spiral spring is provided between the striking plate (35) and the round tube (34). A slope is provided on the surface of the card plate (37) near the striking plate (35). The card plate (37) is in contact with the slot of the baffle (38). A second spiral spring is provided between the baffle (38) and the round tube (34).

2. The nitrogen generator recovery device according to claim 1, characterized in that: The conveying device includes a mounting box (41), a drive motor (42), and a fan blade (43). The mounting box (41) is fixedly installed on the inner wall of the processing table (1). The drive motor (42) is fixedly installed on the inner wall of the mounting box (41). The fan blade (43) is fixedly installed on the output end of the drive motor (42). Filter holes are provided on the surface of the mounting box (41) away from the fixed tube (32).

3. The nitrogen generator recovery device according to claim 2, characterized in that: An L-plate (44) is fixedly installed on the output end of the drive motor (42). A scraper (45) slides through the side of the L-plate (44) away from the drive motor (42). A baffle (46) is fixedly installed at the bottom of the inner wall of the mounting box (41). A collection box (47) is fixedly inserted through the bottom of the mounting box (41). A gate-shaped plate (48) slides through the top of the mounting box (41). The L-plate (44) is in contact with the inner wall of the mounting box (41). A spring is provided between the scraper (45) and the L-plate (44). An arc surface is provided on the baffle (46). The interior of the collection box (47) is connected to the interior of the mounting box (41) through the baffle (46). An arc surface is provided at the bottom of the gate-shaped plate (48).

4. A recovery device for a nitrogen generator according to claim 3, characterized in that: The adsorption device includes a rectangular box (51), a long tube (52), and an adsorption box (53). The rectangular box (51) is fixedly installed on the bottom of the inner wall of the processing table (1). The long tube (52) is fixedly inserted through the rectangular box (51) near the mounting box (41). The adsorption box (53) slides through the inner and outer walls of the rectangular box (51). A rectangular groove is provided on the surface of the rectangular box (51) near the long tube (52). The surface of the long tube (52) away from the rectangular box (51) is in contact with the surface of the mounting box (41). The surface of the adsorption box (53) is provided with air holes. A particle molecular sieve is provided inside the adsorption box (53).

5. A nitrogen generator recovery device according to claim 4, characterized in that: A guide tube (54) is rotatably mounted on the rectangular groove of the rectangular box (51). A contact plate (55) slides through the surface of the adsorption box (53) near the guide tube (54). A lifting plate (56) is fixedly mounted on the surface of the contact plate (55). A long plate (57) is fixedly mounted on the surface of the lifting plate (56). An arc surface four is opened on the surface of the contact plate (55) near the guide tube (54). The arc surface four contacts the surface of the guide tube (54). A No. 3 spiral spring is provided between the guide tube (54) and the rectangular box (51). A second spring is provided between the contact plate (55) and the adsorption box (53).

6. A recovery device for a nitrogen generator according to claim 5, characterized in that: The air outlet device includes an air outlet pipe (61), a connecting pipe (62), and an air outlet valve (63). The air outlet pipe (61) is fixedly inserted through the inner and outer walls of the rectangular box (51). The connecting pipe (62) is fixedly installed on the surface of the air outlet pipe (61) away from the rectangular box (51). The air outlet valve (63) is rotatably inserted through the top of the connecting pipe (62). The air outlet pipe (61) is fixedly inserted through the inner and outer walls of the processing table (1). A circular groove is provided on the air outlet valve (63).

7. A recovery device for a nitrogen generator according to claim 6, characterized in that: A stop plate (64) slides through the surface of the connecting pipe (62) away from the outlet pipe (61). A short block (65) is fixedly installed on the surface of the connecting pipe (62). A limit plate (66) slides through the surface of the short block (65). A semi-arc plate (67) slides through the top of the connecting pipe (62). A cylinder (68) is fixedly installed on the surface of the semi-arc plate (67) near the outlet valve (63). A limit groove is opened on the stop plate (64). A spring three is provided between the stop plate (64) and the connecting pipe (62). A spherical surface is opened at the bottom of the limit plate (66). A spring four is provided between the limit plate (66) and the short block (65). A spring five is provided between the semi-arc plate (67) and the connecting pipe (62). The cylinder (68) contacts the inner wall of the circular groove of the outlet valve (63).

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