Noise reduction protection device for oxygen discharge of nitrogen making machine

Abstract

The utility model relates to the technical field of noise reduction of nitrogen making machines, and discloses a noise reduction protection device for oxygen discharge of a nitrogen making machine, which comprises a collecting tank, a nitrogen pipe is communicated and mounted on one side of the collecting tank, an oxygen pipe is communicated and mounted on one side of the top of the collecting tank, and a noise reduction mechanism is communicated and mounted at the other end of the oxygen pipe; the noise reduction mechanism comprises a noise reduction box installed at the other end of the oxygen pipe in a communicating mode and a first partition plate fixedly installed on one side of the interior of the noise reduction box. A large amount of oxygen is guided into the gas collecting bin from the first silencing pipe, noise in the oxygen can be exhausted from the silencing holes in the outer wall of the first silencing pipe and spread into the silencing bin, and when the noise in the gas collecting bin and the oxygen are guided into the exhaust bin from the second silencing pipe again, the noise in the gas collecting bin can be exhausted. When noise is generated, the remaining noise can be discharged into the noise reduction bin from the noise reduction holes in the second noise reduction pipe again, when the noise is absorbed by the noise absorption cotton in the noise reduction bin, a large amount of oxygen can be discharged along the exhaust pipe, and the noise can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction of nitrogen generators, and specifically relates to a noise reduction and protection device for oxygen discharge of a nitrogen generator. Background Technique

[0002] At present, a nitrogen generator refers to a device that uses air as a raw material and separates oxygen and nitrogen in it by physical methods to obtain nitrogen. Nitrogen generators used in industry can be divided into three types according to different classification methods, namely cryogenic air separation method, molecular sieve air separation method, and membrane air separation method.

[0003] Among them, a nitrogen generator is required in the process of manufacturing nitrogen. However, when the nitrogen generator is operating, it will not only generate a large amount of nitrogen, but also generate a large amount of oxygen, and the oxygen needs to be discharged.

[0004] However, the existing nitrogen generators lack a certain noise reduction device, which is likely to cause relatively large noise during the oxygen discharge process, affecting the hearing health of users, and reducing the practicability of the nitrogen generator to a certain extent. Therefore, new technical solutions need to be designed to solve this problem. Content of the Utility Model

[0005] The purpose of the utility model is to provide a noise reduction and protection device for oxygen discharge of a nitrogen generator, which solves the problems mentioned in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A noise reduction and protection device for oxygen discharge of a nitrogen generator, including a collection tank, a nitrogen pipe is connected and installed on one side of the collection tank, an oxygen pipe is connected and installed on one side of the top of the collection tank, and the other end of the oxygen pipe is connected and installed with a noise reduction mechanism;

[0007] The noise reduction mechanism includes a noise reduction box connected and installed at the other end of the oxygen pipe, a first partition plate fixedly installed on one side inside the noise reduction box, a second partition plate fixedly installed on the other side inside the noise reduction box, a first noise reduction pipe connected and installed on one side between the first partition plate and the second partition plate, a second noise reduction pipe connected and installed on the other side between the first partition plate and the second partition plate, a circulation pipe connected and installed at one end of the second noise reduction pipe, and an exhaust pipe connected and installed in the middle between the first partition plate and the second partition plate. A plurality of groups of equally spaced noise reduction holes are opened on both the first noise reduction pipe and the second noise reduction pipe.

[0008] As an optional solution of the technical solution of the present application, the inside of the first partition plate and the noise reduction box forms an exhaust chamber, the inside of the first partition plate, the second partition plate and the noise reduction box forms a noise reduction chamber, and the inside of the second partition plate and the noise reduction box forms a gas collection chamber.

[0009] As an alternative solution of the technical solution of the present application, both ends of the first sound-absorbing pipe are connected and installed with an oxygen pipe and a gas collecting chamber respectively, and both ends of the second sound-absorbing pipe are connected and installed with an exhaust chamber and a circulation pipe respectively.

[0010] As an alternative solution of the technical solution of the present application, a sound-absorbing cotton is fixedly installed between the first partition board and the second partition board, and the sound-absorbing cotton is in mutual contact with the first sound-absorbing pipe, the second sound-absorbing pipe and the inner wall of the sound-absorbing box, having a good sound-absorbing effect.

[0011] As an alternative solution of the technical solution of the present application, the other end of the exhaust pipe is connected and installed with an exhaust hood, and the exhaust hood is in a horn shape to discharge oxygen.

[0012] As an alternative solution of the technical solution of the present application, a filter plate is installed at the other end of the exhaust hood by means of threads, and a spiral blade is rotatably installed in the middle of the filter plate, which can drive the air flow to be transported spirally.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the technical solution of the present application, a large amount of oxygen is introduced into the gas collecting chamber through the first sound-absorbing pipe, and the noise in the oxygen will be discharged from the sound-absorbing holes on the outer wall of the first sound-absorbing pipe and propagated into the sound-absorbing chamber. When the noise inside the gas collecting chamber and the oxygen are introduced into the exhaust chamber through the second sound-absorbing pipe again, the remaining noise will be discharged into the sound-absorbing chamber again through the sound-absorbing holes on the second sound-absorbing pipe. When the sound-absorbing cotton inside the sound-absorbing chamber absorbs the noise, a large amount of oxygen will be discharged along the exhaust pipe, which can greatly reduce the generation of noise.

[0015] 2. In the technical solution of the present application, a filter plate is installed at the other end of the exhaust hood by means of threads, and a spiral blade is rotatably installed in the middle of the filter plate. When a large amount of air is discharged from the exhaust hood, the high-speed air flow will drive the spiral blade to rotate, and the rotating spiral blade will drive the surrounding air flow to be discharged in a spiral shape, which can reduce the collision between the air flow and the inner wall of the exhaust hood, thereby being beneficial to reducing noise. Description of the Drawings

[0016] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:

[0017] Figure 1 It is a schematic diagram of the overall structure of a noise reduction and protection device for oxygen discharge of a nitrogen generator of the present utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the sound-absorbing box of a noise reduction and protection device for oxygen discharge of a nitrogen generator of the present utility model.

[0019] In the figure: 1. Collection tank; 11. Nitrogen pipe; 12. Oxygen pipe; 13. Silencing box; 2. First partition board; 21. Second partition board; 22. First silencing pipe; 23. Circulation pipe; 24. Second silencing pipe; 25. Exhaust pipe; 26. Sound-absorbing cotton; 3. Exhaust hood; 31. Filter plate; 32. Spiral blade. Detailed implementation

[0020] Please refer to Figure 1-2 , the present utility model provides a technical solution: a noise reduction and protection device for oxygen exhaust of a nitrogen generator, including a collection tank 1, a nitrogen pipe 11 is connected and installed on one side of the collection tank 1, an oxygen pipe 12 is connected and installed on one side of the top of the collection tank 1, and the other end of the oxygen pipe 12 is connected and installed with a noise reduction mechanism;

[0021] The noise reduction mechanism includes a silencing box 13 connected and installed at the other end of the oxygen pipe 12, a first partition board 2 fixedly installed on one side inside the silencing box 13, a second partition board 21 fixedly installed on the other side inside the silencing box 13, a first silencing pipe 22 connected and installed on one side of the first partition board 2 and the second partition board 21, a second silencing pipe 24 connected and installed on the other side of the first partition board 2 and the second partition board 21, a circulation pipe 23 connected and installed at one end of the second silencing pipe 24, and an exhaust pipe 25 connected and installed in the middle of the first partition board 2 and the second partition board 21. A plurality of groups of equally spaced silencing holes are provided on both the first silencing pipe 22 and the second silencing pipe 24.

[0022] In this technical solution, a large amount of oxygen is introduced into the gas collection chamber through the first silencing pipe 22, and the noise in the oxygen will be discharged from the silencing holes on the outer wall of the first silencing pipe 22 and spread into the silencing chamber. When the noise and oxygen in the gas collection chamber are introduced into the exhaust chamber through the second silencing pipe 24 again, the remaining noise will be discharged into the silencing chamber again through the silencing holes on the second silencing pipe 24. When the sound-absorbing cotton 26 in the silencing chamber absorbs the noise, a large amount of oxygen will be discharged along the exhaust pipe 25, which can greatly reduce the generation of noise.

[0023] In some technical solutions, the other end of the exhaust pipe 25 is connected and installed with an exhaust hood 3. The exhaust hood 3 is in a horn shape to discharge oxygen. A filter plate 31 is threadedly installed at the other end of the exhaust hood 3, and a spiral blade 32 is rotatably installed in the middle of the filter plate 31, which can drive the air flow to be spirally conveyed.

[0024] In this technical solution, when a large amount of air is discharged from the exhaust hood 3, the high-speed air flow will drive the spiral blade 32 to rotate, and the rotating spiral blade 32 will drive the surrounding air flow to be discharged in a spiral shape, which can reduce the collision between the air flow and the inner wall of the exhaust hood 3, thereby being beneficial to reducing noise.

[0025] In some technical solutions, a sound-absorbing cotton 26 is fixedly installed between the first partition plate 2 and the second partition plate 21. The sound-absorbing cotton 26 is in mutual contact with the inner walls of the first sound-absorbing pipe 22, the second sound-absorbing pipe 24, and the sound-absorbing box 13, having a good sound-absorbing effect.

[0026] In this technical solution, when a large amount of noise is discharged from multiple groups of sound-absorbing holes on the outer walls of the first sound-absorbing pipe 22 and the second sound-absorbing pipe 24, in cooperation with the sound-absorbing cotton 26 installed inside the sound-absorbing chamber, a large amount of noise can be greatly weakened.

[0027] In some technical solutions, the interior between the first partition plate 2 and the sound-absorbing box 13 forms an exhaust chamber, the interior of the first partition plate 2, the second partition plate 21, and the sound-absorbing box 13 forms a sound-absorbing chamber, the interior between the second partition plate 21 and the sound-absorbing box 13 forms a gas-collecting chamber. The two ends of the first sound-absorbing pipe 22 are respectively connected and installed to the oxygen pipe 12 and the gas-collecting chamber, and the two ends of the second sound-absorbing pipe 24 are respectively connected and installed to the exhaust chamber and the circulation pipe 23.

[0028] In this technical solution, when oxygen preferably enters the gas-collecting chamber, is introduced into the exhaust chamber, and finally discharged from the exhaust pipe 25, the noise in the gas can be dispersed, thereby achieving the sound-absorbing effect.

[0029] When a sound-absorbing and protective device for oxygen discharge of a nitrogen generator is in use, it should be noted that the present utility model is a sound-absorbing and protective device for oxygen discharge of a nitrogen generator. Each component is a general standard component or a component known to those skilled in the art, and its structure and principle can be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0030] During use, first, a sound-absorbing box 13 is installed at the exhaust end of the oxygen pipe 12. When oxygen is discharged, a large amount of oxygen will preferentially be introduced into the gas-collecting chamber from the first sound-absorbing pipe 22, and the noise in the oxygen will be discharged from the sound-absorbing holes on the outer wall of the first sound-absorbing pipe 22 and spread into the sound-absorbing chamber. When the noise and oxygen in the gas-collecting chamber are introduced into the exhaust chamber again from the second sound-absorbing pipe 24, the remaining noise will be discharged into the sound-absorbing chamber again from the sound-absorbing holes on the second sound-absorbing pipe 24. When the sound-absorbing cotton 26 inside the sound-absorbing chamber absorbs the noise, a large amount of oxygen will be discharged along the exhaust pipe 25, which can greatly reduce the generation of noise. At the same time, a filter plate 31 is threadedly installed at the other end of the exhaust hood 3, and a spiral blade 32 is rotatably installed in the middle of the filter plate 31. When a large amount of air is discharged from the exhaust hood 3, the high-speed air flow will drive the spiral blade 32 to rotate, and the rotating spiral blade 32 will drive the surrounding air flow to be discharged in a spiral shape, which can reduce the collision between the air flow and the inner wall of the exhaust hood 3, thereby being beneficial to reducing noise.

Claims

1. A noise reduction and protection device for oxygen exhaust of a nitrogen generator, comprising a collection tank (1), characterized in that: One side of the collection tank (1) is connected and installed with a nitrogen pipe (11), and one side of the top of the collection tank (1) is connected and installed with an oxygen pipe (12). The other end of the oxygen pipe (12) is connected and installed with a silencing mechanism. The silencing mechanism includes a silencing box (13) connected and installed at the other end of the oxygen pipe (12), a first partition plate (2) fixedly installed on one side inside the silencing box (13), a second partition plate (21) fixedly installed on the other side inside the silencing box (13), a first silencing pipe (22) connected and installed on one side of the first partition plate (2) and the second partition plate (21), a second silencing pipe (24) connected and installed on the other side of the first partition plate (2) and the second partition plate (21), a circulation pipe (23) connected and installed at one end of the second silencing pipe (24), and an exhaust pipe (25) connected and installed in the middle of the first partition plate (2) and the second partition plate (21). A plurality of groups of equally spaced silencing holes are provided on both the first silencing pipe (22) and the second silencing pipe (24).

2. The noise reduction and protection device for oxygen discharge of a nitrogen generator according to claim 1, characterized in that: The interior of the first partition plate (2) and the silencing box (13) forms an exhaust chamber, the interior of the first partition plate (2), the second partition plate (21), and the silencing box (13) forms a silencing chamber, and the interior of the second partition plate (21) and the silencing box (13) forms a gas collection chamber.

3. The noise reduction and protection device for oxygen exhaust of a nitrogen generator according to claim 2, characterized in that: Both ends of the first silencing pipe (22) are respectively connected and installed with the oxygen pipe (12) and the gas collection chamber, and both ends of the second silencing pipe (24) are respectively connected and installed with the exhaust chamber and the circulation pipe (23).

4. The noise reduction and protection device for oxygen exhaust of a nitrogen generator according to claim 2, characterized in that: A sound-absorbing cotton (26) is fixedly installed between the first partition plate (2) and the second partition plate (21), and the sound-absorbing cotton (26) is in mutual contact with the inner walls of the first silencing pipe (22), the second silencing pipe (24), and the silencing box (13).

5. The noise reduction and protection device for oxygen exhaust of a nitrogen generator according to claim 1, characterized in that: The other end of the exhaust pipe (25) is connected and installed with an exhaust hood (3), and the exhaust hood (3) is in a horn shape.

6. The silencing and protection device for oxygen exhaust of a nitrogen generator according to claim 5, characterized in that: The other end of the exhaust hood (3) is threadedly installed with a filter plate (31), and a spiral blade (32) is rotatably installed in the middle of the filter plate (31).

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