Noise reduction device of nitrogen making machine

Abstract

The utility model relates to the technical field of nitrogen making machine noise reduction, and discloses a nitrogen making machine noise reduction device which comprises a nitrogen making machine body, the input end of the nitrogen making machine body is communicated with an air inlet pipe, the output end of the nitrogen making machine body is communicated with an air outlet pipe, shells are arranged on the two sides of the upper end of the nitrogen making machine body, and lead screws are arranged at the lower ends of one sides of the shells. According to the technical scheme, the shell can be separated from the air inlet pipe and the air outlet pipe, so that the pipe valves of the air inlet pipe and the air outlet pipe can be conveniently maintained, after maintenance is completed, the shell can cover and isolate the pipe valves of the air inlet pipe and the air outlet pipe, noise discharge is reduced, meanwhile, the first noise reduction sponge is matched with the mesh plate, and noise is reduced. And in the shell moving process, the expansion air bag is expanded to push the second noise reduction sponge to be attached to the outer side wall of the air inlet pipe or the air outlet pipe, dissipation and discharge of the noise are further reduced, and therefore the noise reduction effect on the nitrogen making machine body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction of nitrogen generators, in particular to a noise reduction device for nitrogen generators. Background Art

[0002] A nitrogen generator is a device that uses air as raw material and uses physical methods to separate oxygen and nitrogen in the air to obtain nitrogen. According to different classification methods, namely cryogenic air separation, molecular sieve air separation (PSA) and membrane air separation, industrial nitrogen generators can be divided into three types. A nitrogen generator is a nitrogen production equipment designed and manufactured according to pressure swing adsorption technology. The nitrogen generator uses high-quality imported carbon molecular sieve (CMS) as adsorbent.

[0003] After searching, the publication number is (CN214534248U), which discloses a noise reduction device for a nitrogen generator, including a nitrogen generator body and a carrying box, a notch is provided on the top of the carrying box, two first connecting rods are rotatably installed on the inner wall of the carrying box, connecting pieces are installed at the ends of the two first connecting rods, the two first connecting rods are rotatably installed on the connecting pieces, and connecting blocks are installed on the side walls of the two connecting pieces.

[0004] When implementing this technical solution, there are at least the following defects: although the utility model can reduce the vibration generated during the operation of the nitrogen generator, thereby achieving a noise reduction effect, it is inconvenient to isolate and reduce the noise near the air inlet and outlet of the nitrogen generator, and improvement is urgently needed. Therefore, we propose a noise reduction device for a nitrogen generator. Utility Model Content

[0005] The utility model aims to provide a noise reduction device for a nitrogen generator, which solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nitrogen generator noise reduction device, comprising a nitrogen generator body, the input end of the nitrogen generator body is connected to an air inlet pipe, the output end of the nitrogen generator body is connected to an air outlet pipe, a shell is arranged on both sides of the upper end of the nitrogen generator body, a screw is arranged on the lower end of one side of the shell, slide grooves are opened on both sides of the upper end of the nitrogen generator body, and a slider is welded on the lower end of the shell;

[0007] A mesh plate is provided on the inner side of the shell, the lower end of the mesh plate is fixedly connected to the upper end of the nitrogen generator body, an air storage bag is bonded to one side of the mesh plate, a first noise reduction sponge is bonded to the inner side of the shell, an expansion air bag is bonded to the middle part of the upper end of the shell, and a second noise reduction sponge is bonded to the inner side of the expansion air bag.

[0008] By adopting the above technical solution, during maintenance, first rotate the screw rod counterclockwise, and the screw rod cooperates with the screw rod sleeve to drive the two shells to move to both sides of the nitrogen generator body, so that the shell is separated from the air inlet pipe and the air outlet pipe, thereby facilitating maintenance of the pipe valves of the air inlet pipe and the air outlet pipe. When the maintenance is completed, the screw rod is rotated clockwise, and the screw rod cooperates with the screw rod sleeve to drive the shell to move toward the middle, so that the shell covers and isolates the pipe valves of the air inlet pipe and the air outlet pipe, thereby reducing the discharge of noise. At the same time, the first noise reduction sponge cooperates with the mesh plate to reduce and absorb the noise again, and during the movement of the shell, the air storage bag on the shell will contact and squeeze the mesh plate, and the air in the air storage bag will be discharged into the expansion air bag, so that the expansion air bag will expand and push the second noise reduction sponge to fit the outer wall of the air inlet pipe or the air outlet pipe, further reducing the escape and discharge of noise, thereby achieving the noise reduction effect on the nitrogen generator body.

[0009] Optionally, a screw sleeve is fixedly mounted on the lower end of the shell, and the screw is threadedly connected to the screw sleeve.

[0010] By adopting the above technical solution, it is convenient to cooperate with the screw rod and the screw rod sleeve, so as to drive the shell to move.

[0011] Optionally, the air outlet end of the air storage bag is connected to an air pipe, and the other end of the air pipe is connected to the air inlet end of the expansion air bag.

[0012] By adopting the above technical solution, it is convenient to guide the air through the cooperation of the air pipe.

[0013] Optionally, one end of the screw rod is rotatably connected to the lower end of the mesh plate via a bearing.

[0014] By adopting the above technical solution, the stability of the screw rod can be ensured, thereby facilitating the rotation of the screw rod.

[0015] Optionally, the size of the slider matches the size of the slide groove, and the slider is slidably connected to the slide groove.

[0016] By adopting the above technical solution, the sliding stability of the shell can be ensured, thereby facilitating the movement of the shell.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] The technical solution of the present application is to provide a nitrogen generator body, a shell, a mesh plate, a first noise reduction sponge and a second noise reduction sponge. During maintenance, the shell can be separated from the air inlet pipe and the air outlet pipe, thereby facilitating the maintenance of the valves of the air inlet pipe and the air outlet pipe. When the maintenance is completed, the shell can cover and isolate the valves of the air inlet pipe and the air outlet pipe, thereby reducing the emission of noise. At the same time, the first noise reduction sponge can cooperate with the mesh plate to reduce and absorb the noise again. During the movement of the shell, the expansion airbag can be expanded to push the second noise reduction sponge to fit the outer wall of the air inlet pipe or the air outlet pipe, thereby further reducing the emission of noise, thereby achieving a noise reduction effect on the nitrogen generator body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a noise reduction device for a nitrogen generator according to the utility model;

[0021] Figure 2 This is a schematic diagram of the top view of the first noise reduction sponge of a noise reduction device for a nitrogen generator according to the utility model;

[0022] Figure 3 This is a schematic diagram of the partially enlarged structure of position A of a noise reduction device for a nitrogen generator according to the utility model.

[0023] In the figure: 1. nitrogen generator body; 11. air inlet pipe; 12. air outlet pipe; 2. shell; 21. screw rod; 22. screw rod sleeve; 23. slider; 24. slide groove; 3. mesh plate; 31. air storage bag; 32. air pipe; 33. first noise reduction sponge; 4. expansion air bag; 5. second noise reduction sponge. DETAILED DESCRIPTION

[0024] See also Figure 1-3 The utility model provides a technical solution: a nitrogen generator noise reduction device, including a nitrogen generator body 1, the input end of the nitrogen generator body 1 is connected with an air inlet pipe 11, which is convenient for conveying air, and the output end of the nitrogen generator body 1 is connected with an air outlet pipe 12, which is convenient for conveying nitrogen, and shells 2 are arranged on both sides of the upper end of the nitrogen generator body 1, and a screw rod 21 is arranged at the lower end of one side of the shell 2, and slide grooves 24 are opened on both sides of the upper end of the nitrogen generator body 1, and a slider 23 is welded at the lower end of the shell 2 to ensure the stability of the shell 2;

[0025] A mesh plate 3 is provided on the inner side of the shell 2, and the lower end of the mesh plate 3 is fixedly connected to the upper end of the nitrogen generator body 1. An air storage bag 31 is bonded to one side of the mesh plate 3, and a first noise reduction sponge 33 is bonded to the inner side of the shell 2. An expansion air bag 4 is bonded to the middle part of the upper end of the shell 2, and a second noise reduction sponge 5 is bonded to the inner side of the expansion air bag 4. One end of the screw rod 21 is rotatably connected to the lower end of the mesh plate 3 through a bearing, so as to ensure the stability of the screw rod 21, thereby facilitating the rotation of the screw rod 21. The size of the slider 23 is matched with the size of the slide groove 24, and the slider 23 is slidably connected to the slide groove 24, so as to ensure the sliding stability of the shell 2, thereby facilitating the movement of the shell 2.

[0026] A screw sleeve 22 is fixedly mounted on the lower end of the housing 2, and the screw rod 21 is threadedly connected to the screw sleeve 22, so that the housing 2 can be driven to move by the cooperation between the screw rod 21 and the screw sleeve 22.

[0027] The air outlet end of the air storage bag 31 is connected to the air pipe 32, and the other end of the air pipe 32 is connected to the air inlet end of the expansion air bag 4, so that the air can be guided through the air pipe 32.

[0028] During maintenance, first rotate the screw rod 21 counterclockwise, and the screw rod 21 cooperates with the screw rod sleeve 22 to drive the two shells 2 to move to the two sides of the nitrogen generator body 1, so that the shell 2 is separated from the air inlet pipe 11 and the air outlet pipe 12, so as to facilitate maintenance of the pipe valves of the air inlet pipe 11 and the air outlet pipe 12. When the maintenance is completed, rotate the screw rod 21 clockwise, and the screw rod 21 cooperates with the screw rod sleeve 22 to drive the shell 2 to move toward the middle, so that the shell 2 covers and isolates the pipe valves of the air inlet pipe 11 and the air outlet pipe 12, so as to The noise emission is reduced. At the same time, the first noise reduction sponge 33 cooperates with the mesh plate 3 to reduce and absorb the noise again. In the process of movement of the shell 2, the air storage bag 31 on the shell 2 will contact and squeeze the mesh plate 3, and the air in the air storage bag 31 will be discharged into the expansion air bag 4, so that the expansion air bag 4 expands and pushes the second noise reduction sponge 5 to fit the outer wall of the inlet pipe 11 or the outlet pipe 12, further reducing the escape and emission of noise, thereby achieving the noise reduction effect on the nitrogen generator body 1.

Claims

1. A noise reduction device for a nitrogen generator, comprising a nitrogen generator body (1), characterized in that: The input end of the nitrogen generator body (1) is connected to an air inlet pipe (11), the output end of the nitrogen generator body (1) is connected to an air outlet pipe (12), a shell (2) is arranged on both sides of the upper end of the nitrogen generator body (1), a screw rod (21) is arranged at the lower end of one side of the shell (2), sliding grooves (24) are arranged on both sides of the upper end of the nitrogen generator body (1), and a slider (23) is welded to the lower end of the shell (2); A mesh plate (3) is provided on the inner side of the shell (2), the lower end of the mesh plate (3) is fixedly connected to the upper end of the nitrogen generator body (1), an air storage bag (31) is bonded to one side of the mesh plate (3), a first noise reduction sponge (33) is bonded to the inner side of the shell (2), an expansion air bag (4) is bonded to the middle part of the upper end of the shell (2), and a second noise reduction sponge (5) is bonded to the inner side of the expansion air bag (4).

2. A nitrogen generator noise reduction device according to claim 1, characterized in that: A screw sleeve (22) is fixedly mounted on the lower end of the housing (2), and the screw rod (21) is threadedly connected to the screw sleeve (22).

3. A nitrogen generator noise reduction device according to claim 2, characterized in that: The air outlet end of the air storage bag (31) is connected to an air pipe (32), and the other end of the air pipe (32) is connected to the air inlet end of the expansion bag (4).

4. A noise reduction device for a nitrogen generator according to claim 3, characterized in that: One end of the screw rod (21) is rotatably connected to the lower end of the mesh plate (3) via a bearing.

5. A noise reduction device for a nitrogen generator according to claim 4, characterized in that: The size of the slider (23) matches the size of the slide groove (24), and the slider (23) is slidably connected to the slide groove (24).

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