Activated carbon filter of nitrogen making unit

Abstract

The utility model discloses an activated carbon filter of a nitrogen making unit, which comprises a tank body, a filter component is assembled in the tank body, a sealing cover is detachably and fixedly assembled on the top of the tank body through a fixing bolt and a fixing nut, an air inlet pipe is fixedly connected to the top of the sealing cover, and an air outlet pipe is fixedly connected to the center of the bottom of the tank body. And a guide assembly is fixedly assembled in the sealing cover. When the filtering assembly in the tank body needs to be maintained and replaced, only the sealing cover needs to be detached, then the filtering assembly can be moved out and replaced, the overall maintenance and replacement process is simpler and more convenient, meanwhile, the guiding assembly is further arranged in the sealing cover, and therefore the filtering assembly can be conveniently moved out and replaced. The gas needing to be filtered can be more uniformly distributed into the filtering assembly through the guiding assembly, the gas filtering effect of the filtering assembly can be improved, and meanwhile the service life of the filtering assembly can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of activated carbon filtration technology, specifically to an activated carbon filter for a nitrogen generator unit. Background Technology

[0002] Nitrogen generators use clean compressed air as raw material and carbon molecular sieves as adsorbents to produce nitrogen at room temperature using the principle of pressure swing adsorption. The nitrogen production process requires activated carbon filters to adsorb the gas. Existing activated carbon filters require regular maintenance, including replacing the filter screens to prevent carbon loss during filtration. Traditionally, this involves cutting the filter and replacing the screens, a time-consuming and labor-intensive process.

[0003] A technical solution is proposed in the Chinese utility model patent document with patent number CN209630791U and patent name: "An activated carbon filter for a nitrogen generator unit". The upper and lower ends of the tank are sealed by flange joints. When it is necessary to replace and maintain the internal filter screen, the fixed flanges at both ends can be disassembled to replace the filter screen.

[0004] While the activated carbon filter in the aforementioned patent features fixed flanges, eliminating the need for cutting during filter screen maintenance and replacement compared to traditional filters, the process of disassembling the fixed flanges from both ends is still cumbersome, and filter screen maintenance remains time-consuming and labor-intensive. Therefore, we propose an activated carbon filter for nitrogen generator units. Utility Model Content

[0005] The purpose of this invention is to provide an activated carbon filter for a nitrogen generator unit to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an activated carbon filter for a nitrogen generator unit, comprising a tank body, a filter assembly assembled inside the tank body, a cover detachably and fixedly mounted on the top of the tank body by fixing bolts and fixing nuts, an air inlet pipe fixedly connected to the top of the cover, an air outlet pipe fixedly connected to the center of the bottom of the tank body, and a guide assembly fixedly mounted inside the cover.

[0007] Preferably, the filter assembly includes an assembly cylinder filled with activated carbon filter particles. The upper and lower ends of the assembly cylinder are respectively detachably fixed with an upper assembly frame and a lower assembly frame by fixing screws. A filter screen is embedded in the center of both the upper and lower assembly frames.

[0008] Preferably, the top of the assembly cylinder is symmetrically fixed with handle brackets on the left and right, and the upper assembly bracket is symmetrically provided with arc-shaped grooves on the left and right.

[0009] Preferably, the side wall of the assembly cylinder is integrally formed with a locking block, and the inner cavity side wall of the tank body is provided with a locking groove, and the locking block is slidably connected in the locking groove.

[0010] Preferably, the guiding assembly includes a first guide frame, one end of a connecting frame is fixedly connected to the side wall of the first guide frame, the other end of the connecting frame is fixedly connected to the inner cavity side wall of the cover, a guide groove is provided in the first guide frame, and a second guide frame is fixedly connected to the middle of the first guide frame through a support shaft, and through holes are uniformly provided in the second guide frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides an activated carbon filter for a nitrogen generator unit. The filter components have been redesigned and pre-assembled, allowing for the pre-assembly of filter components that need replacement. When maintenance or replacement of the filter components inside the tank is required, only the cover needs to be removed to remove and replace the filter components. The overall maintenance and replacement process is simpler and more convenient. Furthermore, this utility model also includes a guide component inside the cover, which can distribute the gas to be filtered more evenly within the filter components. This not only improves the filtration effect of the filter components but also extends their service life. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the filter assembly of this utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the inner guide component of the cover of this utility model.

[0016] In the diagram: 1. Tank body; 2. Filter assembly; 21. Assembly cylinder; 22. Activated carbon filter particles; 23. Fixing screw; 24. Upper assembly frame; 25. Lower assembly frame; 26. Filter screen; 27. Handle bracket; 28. Arc groove; 3. Locking block; 4. Locking slot; 5. Fixing bolt; 6. Fixing nut; 7. Cover; 8. Air inlet pipe; 9. Air outlet pipe; 10. Guide assembly; 101. First guide frame; 102. Connecting frame; 103. Guide groove; 104. Second guide frame; 105. Through hole. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a technical solution: an activated carbon filter for a nitrogen generator unit, including a tank 1, with a filter assembly 2 installed in the inner cavity of the tank 1. The filter assembly 2 filters the gas passing through the tank 1. Compared with the traditional filter structure in the tank 1, this utility model uses a pre-assembled filter assembly 2, which can not only filter the gas passing through the tank 1, but also save operation steps and improve the efficiency of inspection and maintenance when maintaining and replacing the filter structure.

[0019] The filter assembly 2 includes an assembly cylinder 21, which is filled with activated carbon filter particles 22. The upper and lower ends of the assembly cylinder 21 are respectively fixedly mounted with an upper assembly frame 24 and a lower assembly frame 25 by fixing screws 23. Filter screens 26 are embedded in the center of the upper assembly frame 24 and the lower assembly frame 25 respectively. The activated carbon filter particles 22 in the assembly cylinder 21 are sealed by the filter screens 26 to prevent the activated carbon filter particles 22 from being moved out of the tank 1 along with the gas during the gas passage process.

[0020] like Figure 2 and Figure 3 As shown, the top of the assembly cylinder 21 is symmetrically and fixedly connected with a handle 27. The upper assembly frame 24 has symmetrical arc grooves 28 on the left and right sides. The arc grooves 28 are used for the passage of the handle 27. By setting the handle 27, it is easy to lift the filter assembly 2 out of the tank 1 as a whole, thereby improving the replacement efficiency of the filter assembly 2.

[0021] like Figure 2 As shown, the side wall of the assembly cylinder 21 is integrally formed with a locking block 3, and the inner cavity side wall of the tank body 1 is provided with a locking groove 4. By cooperating with the locking block 3 and the locking groove 4, the assembly cylinder 21 is fixed in the middle position inside the tank body 1, so that the filter assembly 2 can better filter the gas during the process of the gas passing through the tank body 1.

[0022] like Figure 1 As shown, a cover 7 is detachably and fixedly mounted on the top of the tank body 1 by fixing bolts 5 and fixing nuts 6. The cover 7 is used to seal the tank body 1. An air inlet pipe 8 is fixedly connected to the middle of the cover 7. An air outlet pipe 9 is fixedly connected to the center of the bottom of the tank body 1. The air inlet pipe 8 is used for the gas to be filtered to enter the tank body 1, and the air outlet pipe 9 is used for the filtered gas to exit the tank body 1.

[0023] like Figure 4As shown, a guide assembly 10 is fixedly installed inside the cover 7. The guide assembly 10 prevents the gas entering the tank 1 from the air inlet pipe 8 from passing through the middle of the filter assembly 2 in a concentrated manner, thereby avoiding excessive consumption of the middle of the filter assembly 2 and reducing the service life of the filter assembly 2. The guide assembly 10 guides the gas evenly into the filter assembly 2, which can effectively improve the uniformity of gas filtration by the filter assembly 2 and enhance the filtration effect of the gas.

[0024] The guide assembly 10 includes a first guide frame 101. A connecting frame 102 is fixedly connected between the side wall of the first guide frame 101 and the cover 7. The connecting frame 102 is evenly distributed circumferentially around the center of the first guide frame 101. A guide groove 103 is provided in the first guide frame 101. A second guide frame 104 is fixedly connected to the middle of the first guide frame 101 through a support shaft. Through holes 105 are evenly provided in the second guide frame 104. The second guide frame 104 corresponds to the position of the air inlet pipe 8. Part of the gas entering the tank 1 from the air inlet pipe 8 enters the filter assembly 2 through the through holes 105 and the guide groove 103. The remaining gas is dispersed into the filter assembly 2 from the side of the second guide frame 104 and the first guide frame 101.

[0025] Working principle: In use, the inlet pipe 8 and outlet pipe 9 are connected to the nitrogen generator unit. Gas enters the tank 1 through the inlet pipe 8 and is then filtered by the filter assembly 2 inside the tank 1. The filtered gas is discharged out through the outlet pipe 9. When the filter assembly 2 needs to be maintained or replaced, the components of the filter assembly 2 to be replaced are pre-assembled. After pre-assembly, the cover 7 is opened, and the filter assembly 2 inside the tank 1 is taken out through the handle 27. Then, the newly assembled filter assembly 2 is inserted into the tank 1, and the cover 7 is closed to complete the maintenance and replacement of the filter assembly 2. The whole process is simpler and more convenient.

Claims

1. An activated carbon filter for a nitrogen generator unit, comprising a tank (1), characterized in that: The tank (1) is equipped with a filter assembly (2). The top of the tank (1) is detachably and fixedly fitted with a cover (7) by fixing bolts (5) and fixing nuts (6). An air inlet pipe (8) is fixedly connected to the top of the cover (7). An air outlet pipe (9) is fixedly connected to the center of the bottom of the tank (1). A guide assembly (10) is fixedly fitted inside the cover (7).

2. The activated carbon filter for a nitrogen generator unit according to claim 1, characterized in that: The filter assembly (2) includes an assembly cylinder (21) filled with activated carbon filter particles (22). The upper and lower ends of the assembly cylinder (21) are respectively fixedly mounted with an upper assembly frame (24) and a lower assembly frame (25) by fixing screws (23). A filter screen (26) is embedded in the center of both the upper assembly frame (24) and the lower assembly frame (25).

3. The activated carbon filter for a nitrogen generator unit according to claim 2, characterized in that: The top of the assembly cylinder (21) is symmetrically fixed with handles (27) on the left and right, and the upper assembly frame (24) is symmetrically provided with arc-shaped grooves (28) on the left and right.

4. The activated carbon filter for a nitrogen generator unit according to claim 2, characterized in that: The side wall of the assembly cylinder (21) is integrally formed with a locking block (3), and the inner cavity side wall of the tank body (1) is provided with a locking groove (4), and the locking block (3) is slidably connected in the locking groove (4).

5. An activated carbon filter for a nitrogen generator unit according to claim 1, characterized in that: The guide assembly (10) includes a first guide frame (101), one end of a connecting frame (102) is fixedly connected to the side wall of the first guide frame (101), and the other end of the connecting frame (102) is fixedly connected to the inner cavity side wall of the cover (7). A guide groove (103) is provided in the first guide frame (101), and a second guide frame (104) is fixedly connected to the middle part of the first guide frame (101) through a support shaft. Through holes (105) are evenly provided in the second guide frame (104).

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