Air purification device for pressure swing adsorption nitrogen generation device

Abstract

The utility model discloses an air purification device for a pressure swing adsorption nitrogen generation device, and relates to the technical field of pressure swing adsorption nitrogen generation. The air compressor comprises an air compression assembly, a dehumidifier, a first communicating cylinder and a second communicating cylinder which are used in a matched mode, fixing pipes distributed in an array mode are fixedly installed at the top end of the first communicating cylinder, fixing rings used in a matched mode are integrally formed on the fixing pipes, and flexible pipes used in cooperation with the fixing pipes are fixedly installed at the bottom end of the second communicating cylinder. The bottom end of the flexible pipe is fixedly connected with a connecting cylinder, the connecting cylinder can be slidably arranged on the fixed pipe in a sleeving mode, and a limiting mechanism and an auxiliary mechanism which are used in cooperation are arranged between the fixed pipe and the connecting cylinder; by arranging and using a limiting mechanism, convenience is provided for synchronous rotation and resetting of four gears, so that convenience is provided for synchronous rotation and resetting of four rotating rods and a limiting cam correspondingly, convenience is provided for disassembly and assembly of a corresponding connecting cylinder, and convenience is further provided for replacement of a corresponding filtering piece.

Description

Technical Field

[0001] This utility model relates to the field of pressure swing adsorption (PSA) nitrogen generation technology, specifically to an air purification device for a PSA nitrogen generation apparatus. Background Technology

[0002] Pressure swing adsorption (PSA) is a novel gas separation technology that separates gas mixtures by utilizing the differences in the adsorption properties of molecular sieves for different gas molecules. It has seen rapid development abroad since the late 1960s and early 1970s.

[0003] Patent CN219462879U discloses an air purification device for a pressure swing adsorption (PSA) nitrogen generator, comprising an air compression assembly, a first connecting cylinder, a second connecting cylinder, and multiple filter assemblies. The first connecting cylinder is connected to the air outlet of the air compression assembly. The second connecting cylinder has an air outlet that communicates with its interior. The filter assemblies include a fixed tube, a sealing ball, a flexible tube, a filter element, a pusher, and a one-way valve. The fixed tube is connected to the first connecting cylinder, and a conical hole communicating with the first connecting cylinder is formed inside the fixed tube. The sealing ball is built into the conical hole and can block the conical hole under the push of airflow. One end of the flexible tube is detachably connected to the fixed tube, and the other end is connected to the second connecting cylinder. The filter element is detachably built into the fixed tube. The pusher is connected to the filter element and is used to release the blockage of the conical hole. The one-way valve is installed on the flexible tube.

[0004] While existing technology enables filter replacement without shutting down the system, the connecting cylinder and the fixed pipe are connected by threads, which makes disassembly and assembly inconvenient and thus hinders filter replacement.

[0005] To address the aforementioned problems, the inventors have proposed an air purification device for a pressure swing adsorption (PSA) nitrogen generator. Utility Model Content

[0006] In order to solve the problem of inconvenient disassembly and assembly caused by the threaded connection between the connecting cylinder and the fixed pipe in the existing technology, the purpose of this utility model is to provide an air purification device for a pressure swing adsorption nitrogen generator.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an air purification device for a pressure swing adsorption nitrogen generator, comprising an air compression assembly, a dehumidifier, a first connecting cylinder and a second connecting cylinder, wherein an array of fixed tubes are fixedly installed at the top of the first connecting cylinder, and a fixed ring for use is integrally formed on the fixed tube; a flexible tube for use with the fixed tube is fixedly installed at the bottom of the second connecting cylinder, and a connecting cylinder is fixedly connected to the bottom of the flexible tube; the connecting cylinder can be slidably sleeved on the fixed tube, and a limiting mechanism and an auxiliary mechanism for use are provided between the fixed tube and the connecting cylinder;

[0008] The limiting mechanism includes a gear ring and a mounting ring. The gear ring is rotatably sleeved on the fixed tube, and the mounting ring is fixedly installed between the gear ring and the fixed ring. A rotating tube is fixedly installed at the bottom end of the gear ring, and the rotating tube is rotatably sleeved on the fixed tube. The outer wall of the rotating tube is covered with a layer of anti-slip texture. An array of rotating rods is rotatably inserted into the mounting ring, and a gear is fixedly sleeved at the bottom end of the rotating rod. An array of rotating holes is opened through the mounting ring, and the rotating rod is rotatably inserted into the rotating holes. The gear meshes with the gear ring, and a collar is fixedly sleeved at the end of the rotating rod near the gear. A torsion spring is fixedly installed at the bottom end of the collar, and the end of the torsion spring is fixedly connected to the mounting ring. A limiting cam is fixedly sleeved at the end of the rotating rod away from the gear, and the limiting cam can slide and fit against the top end of the connecting cylinder. A through hole is opened at one end of the limiting cam, and the rotating rod is fixedly inserted into the through hole.

[0009] Preferably, the auxiliary mechanism includes a plug rod and a sealing ring 1. The plug rod is fixedly installed on the top of the fixing ring and can be slidably inserted into the connecting cylinder. The bottom end of the connecting cylinder has an array of insertion holes, and the plug rod can be slidably inserted into the insertion holes. A sealing ring 2 is slidably sleeved on the outside of the plug rod, and the sealing ring 2 can be tightly fitted with the fixing ring and the connecting cylinder. The sealing ring 1 is fixedly installed on the top of the inner side of the connecting cylinder, and the sealing ring 1 can be tightly fitted with the top of the fixing tube. The heights of the sealing ring 1 and the sealing ring 2 are the same.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. The use of the limit mechanism facilitates the synchronous rotation and reset of the four gears, which in turn facilitates the synchronous rotation and reset of the four corresponding rotating rods and the limit cam, thereby facilitating the disassembly and assembly of the corresponding connecting cylinder and further facilitating the replacement of the corresponding filter element.

[0012] 2. The auxiliary mechanism ensures the precise and stable connection between the connecting cylinder and the corresponding fixed tube, and effectively guarantees the sealing of the connection, thereby ensuring the stable operation of the limit mechanism. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the installation of the limiting mechanism in this utility model.

[0016] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. First connecting tube; 2. Second connecting tube; 3. Fixed tube; 31. Fixed ring; 4. Flexible tube; 41. Connecting tube; 42. Insertion hole; 5. Limiting mechanism; 51. Gear ring; 52. Mounting ring; 53. Rotating rod; 54. Gear; 55. Collar; 56. Torsion spring; 57. Limiting cam; 58. Rotating tube; 59. Rotating hole; 510. Through hole; 6. Auxiliary mechanism; 61. Insertion rod; 62. Sealing ring one; 63. Sealing ring two. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Figures 1-3 As shown, this utility model provides an air purification device for a pressure swing adsorption nitrogen generator, including an air compression assembly, a dehumidifier, a first connecting cylinder 1 and a second connecting cylinder 2. The top of the first connecting cylinder 1 is fixedly installed with an array of fixed tubes 3, and a fixed ring 31 for use is integrally formed on the fixed tubes 3. The bottom of the second connecting cylinder 2 is fixedly installed with a flexible tube 4 for use with the fixed tubes 3. A filter element and a one-way valve are provided between the fixed tubes 3 and the flexible tube 4. The use of the air compression assembly and the dehumidifier is existing technology and will not be described in detail here. The bottom of the flexible tube 4 is fixedly connected to a connecting cylinder 41, which can slide on the fixed tubes 3. A limiting mechanism 5 and an auxiliary mechanism 6 for use are provided between the fixed tubes 3 and the connecting cylinder 41.

[0020] The limiting mechanism 5 includes a gear ring 51 and a mounting ring 52. The gear ring 51 is rotatably sleeved on the fixed tube 3, and the mounting ring 52 is fixedly installed between the gear ring 51 and the fixed ring 31. A rotating tube 58 is fixedly installed at the bottom end of the gear ring 51, and the rotating tube 58 is rotatably sleeved on the fixed tube 3. The outer wall of the rotating tube 58 is covered with an anti-slip texture, which can increase friction and facilitate operation. An array of rotating rods 53 are rotatably inserted into the mounting ring 52, and a gear 54 is fixedly sleeved at the bottom end of the rotating rod 53. An array of rotating holes 59 are opened through the mounting ring 52, and the rotating rods 53 are rotatably inserted into the rotating holes 59. The rotating holes 59 are designed to... The use of the rotating rod 53 ensures stable rotation. The gear 54 meshes with the gear ring 51, and a collar 55 is fixedly sleeved on the end of the rotating rod 53 near the gear 54. A torsion spring 56 is fixedly installed at the bottom end of the collar 55, and the end of the torsion spring 56 is fixedly connected to the mounting ring 52. A limiting cam 57 is fixedly sleeved on the end of the rotating rod 53 away from the gear 54, and the limiting cam 57 can slide and fit against the top end of the connecting cylinder 41. A through hole 510 is opened at one end of the limiting cam 57, and the rotating rod 53 is fixedly inserted into the through hole 510. The setting of the through hole 510 ensures stable insertion of the rotating rod 53 and the limiting cam 57.

[0021] By adopting the above technical solution, when the filter needs to be replaced, the user needs to rotate the corresponding rotating tube 58, which will drive the corresponding gear ring 51 to rotate, thereby driving the four corresponding gears 54 to rotate synchronously, and further driving the four corresponding rotating rods 53 to rotate synchronously, thereby driving the four corresponding collars 55 and the limiting cam 57 to rotate synchronously, thereby twisting the four corresponding torsion springs 56 and gradually separating the limiting cam 57 from the corresponding connecting cylinder 41. When the corresponding limiting cam 57 rotates 90 degrees, the rotation of the corresponding rotating tube 58 is stopped. Then, the corresponding connecting cylinder 41 is removed and the corresponding filter is replaced. After that, the connecting cylinder 41 is put back on the corresponding fixing tube 3, and then the corresponding connecting cylinder 41 is pressed down. When the corresponding connecting cylinder 41 moves to the lowest position, the corresponding rotating tube 58 is released. At this time, the four corresponding torsion springs 56 will drive the four corresponding collars 55 to reverse and reset, thereby driving the four corresponding rotating rods 53 to reverse and reset, thereby driving the corresponding gears 54, gear rings 51 and limiting cams 57 to reverse and reset, and further enabling the corresponding connecting cylinder 41 to be conveniently limited and fixed again.

[0022] The auxiliary mechanism 6 includes a plug rod 61 and a sealing ring 62. The plug rod 61 is fixedly installed on the top of the fixing ring 31 and can be slidably inserted into the connecting cylinder 41. The bottom end of the connecting cylinder 41 has an array of insertion holes 42, and the plug rod 61 can be slidably inserted into the insertion holes 42. A sealing ring 63 is slidably sleeved on the outside of the plug rod 61, and the sealing ring 63 can be tightly fitted with the fixing ring 31 and the connecting cylinder 41. The sealing ring 62 is fixedly installed on the top of the inner side of the connecting cylinder 41, and the sealing ring 62 can be tightly fitted with the top of the fixing tube 3. The sealing ring 62 and the sealing ring 63 are at the same height, thus ensuring their synchronous operation and thus ensuring the sealing of the connection.

[0023] By adopting the above technical solution, when in use, the connecting cylinder 41 is once again sleeved on the corresponding fixed tube 3 and the insertion rod 61 is inserted into the corresponding insertion hole 42. Then, the corresponding connecting cylinder 41 is pressed down, thereby squeezing the corresponding sealing ring 62 and sealing ring 63.

[0024] Working principle: When the filter needs to be replaced, the user needs to rotate the corresponding rotating tube 58, which will drive the corresponding gear ring 51 to rotate, which in turn will drive the four corresponding gears 54 to rotate synchronously, which will drive the four corresponding rotating rods 53 to rotate synchronously, which will drive the four corresponding collars 55 and the limiting cam 57 to rotate synchronously, which will then twist the four corresponding torsion springs 56 and gradually separate the limiting cam 57 from the corresponding connecting cylinder 41. When the corresponding limiting cam 57 rotates 90 degrees, the rotation of the corresponding rotating tube 58 will stop. Then the corresponding connecting cylinder 41 can be removed and the corresponding filter replaced. After that, the connecting cylinder 41 is put back on the corresponding fixing tube 3 and the insertion rod 61 is inserted into the corresponding insertion hole 42. Then, the corresponding connecting cylinder 41 is pressed down, which can squeeze the corresponding sealing ring 62 and sealing ring 63. When the corresponding connecting cylinder 41 moves down to the lowest position, the corresponding rotating tube 58 is released. At this time, the corresponding four torsion springs 56 will drive the corresponding four collars 55 to reverse and reset, which can drive the corresponding four rotating rods 53 to reverse and reset, and then drive the corresponding gear 54, gear ring 51 and limiting cam 57 to reverse and reset, and further can conveniently limit and fix the corresponding connecting cylinder 41 again.

[0025] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An air purification device for a pressure swing adsorption (PSA) nitrogen generator, comprising an air compression assembly, a dehumidifier, a first connecting cylinder (1), and a second connecting cylinder (2) used in conjunction, characterized in that: The top end of the first connecting tube (1) is fixedly installed with arrayed fixed tubes (3), and a fixed ring (31) for use is integrally formed on the fixed tube (3). The bottom end of the second connecting tube (2) is fixedly installed with a flexible tube (4) for use with the fixed tube (3), and a connecting tube (41) is fixedly connected to the bottom end of the flexible tube (4). The connecting tube (41) can be slidably sleeved on the fixed tube (3), and a limiting mechanism (5) and an auxiliary mechanism (6) for use are provided between the fixed tube (3) and the connecting tube (41). The limiting mechanism (5) includes a gear ring (51) and a mounting ring (52). The gear ring (51) is rotatably sleeved on the fixed tube (3), and the mounting ring (52) is fixedly installed between the gear ring (51) and the fixed ring (31). An array of rotating rods (53) is rotatably inserted into the mounting ring (52), and a gear (54) is fixedly sleeved at the bottom end of the rotating rod (53). The gear (54) meshes with the gear ring (51), and a collar (55) is fixedly sleeved at the end of the rotating rod (53) near the gear (54). A torsion spring (56) is fixedly installed at the bottom end of the collar (55), and the end of the torsion spring (56) is fixedly connected to the mounting ring (52). A limiting cam (57) is fixedly sleeved at the end of the rotating rod (53) away from the gear (54), and the limiting cam (57) can slide against the top end of the connecting cylinder (41).

2. The air purification device for a pressure swing adsorption nitrogen generator as described in claim 1, characterized in that, The auxiliary mechanism (6) includes a plug rod (61) and a sealing ring (62). The plug rod (61) is fixedly installed on the top of the fixing ring (31) and can be slidably inserted into the connecting cylinder (41). A sealing ring (63) is slidably sleeved on the outside of the plug rod (61) and can be tightly fitted with the fixing ring (31) and the connecting cylinder (41). The sealing ring (62) is fixedly installed on the top of the inner side of the connecting cylinder (41) and can be tightly fitted with the top of the fixing tube (3).

3. The air purification device for a pressure swing adsorption nitrogen generator as described in claim 2, characterized in that, The bottom end of the connecting tube (41) is provided with an array of insertion holes (42), and the insertion rod (61) can be slidably inserted into the insertion holes (42).

4. The air purification device for a pressure swing adsorption nitrogen generator as described in claim 2, characterized in that, The sealing ring one (62) and the sealing ring two (63) have the same height.

5. An air purification device for a pressure swing adsorption nitrogen generator as described in claim 1, characterized in that, The bottom end of the gear ring (51) is fixedly installed with a rotating tube (58), and the rotating tube (58) is rotatably sleeved on the fixed tube (3).

6. The air purification device for a pressure swing adsorption nitrogen generator as described in claim 5, characterized in that, The outer wall of the rotating tube (58) is covered with a layer of anti-slip texture.

7. The air purification device for a pressure swing adsorption nitrogen generator as described in claim 1, characterized in that, The mounting ring (52) has an array of rotating holes (59) through it, and the rotating rod (53) is rotatably inserted into the rotating holes (59).

8. The air purification device for a pressure swing adsorption nitrogen generator as described in claim 1, characterized in that, One end of the limiting cam (57) has a through hole (510), and the rotating rod (53) is fixedly inserted into the through hole (510).

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