Silencing device of oxygen generator

Abstract

The utility model discloses an oxygen generator silencing device, and particularly relates to the technical field of oxygen generator silencing, the oxygen generator silencing device comprises a main body assembly, the main body assembly is fixedly provided with a conical flow collecting assembly, the bottom end of the main body assembly is fixedly provided with a silencing pipeline, and the oxygen generator silencing device enables noise to be in contact with a convex strip, a friction reflection sheet and the inner wall of a silencing cylinder. Sound waves can rebound among the sound waves, so that the noise is attenuated in the reflection process, the noise is reduced, a plurality of fine and dense small holes are further formed in the surface of the noise reduction filter screen plate, the convex strips and the surfaces of the friction reflection pieces, the sound waves penetrate through the fine and dense small holes, and then the energy of the noise is consumed in an acting mode; furthermore, the fan blades can rotate under the action of flowing of the nitrogen, the kinetic energy of the nitrogen can be consumed and noise can be reduced through rotation of the fan blades, the noise can be further weakened through the fan blades as obstacles, and finally the noise is reduced through the length and bending of the noise reduction pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrator silencing, in particular to an oxygen concentrator silencing device. Background Art

[0002] Oxygen is an essential gas for human survival, especially in the process of medical emergency, where it plays a vital role. An oxygen generator is a machine specially used to produce oxygen. The principle is to use air separation technology to first compress the air at a high density, and then use the different condensation points of the components in the air to separate the air into gas and liquid at a certain temperature, and then perform distillation to separate it into oxygen and nitrogen.

[0003] The oxygen generator goes through a cycle of adsorption-pressure equalization-nitrogen exhaust during operation. The nitrogen exhaust process produces a lot of noise due to the large pressure difference, which can cause discomfort to the human ears. Therefore, a silencer needs to be added to reduce the noise generated during nitrogen exhaust. Utility Model Content

[0004] The purpose of the utility model is to provide an oxygen concentrator silencer to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: an oxygen concentrator silencer device, comprising a main body component, the main body component is fixedly installed with a conical current collecting component, and the bottom end of the main body component is fixedly installed with a silencer pipe;

[0006] The main body component includes a silencer and a silencer cover, the silencer cover is fixedly installed on the top of the silencer, a plurality of convex strips are fixedly installed on the inner wall of the silencer, a plurality of friction reflective sheets are fixedly installed on the inner surfaces of the plurality of convex strips in sequence from top to bottom, a silencer filter screen is fixedly embedded in the bottom of the silencer, a circular shaft is rotatably plugged in the center of the bottom surface of the silencer filter screen, a circular block is fixedly installed at the bottom end of the circular shaft, a plurality of fan blades are fixedly plugged on the side of the circular block, and an air outlet is fixedly installed at the bottom end of the silencer.

[0007] Preferably, the conical current collecting assembly comprises an acceleration cover and a throat, the throat is fixedly mounted on the bottom of the acceleration cover, and a diffusion cover is fixedly mounted on the bottom end of the throat.

[0008] Preferably, the acceleration cover is arranged in a cone shape, and the cross-section of the diffusion cover is arranged in a hyperbolic shape.

[0009] Preferably, a silencer pipe is fixedly installed at the bottom end of the air outlet, and the silencer pipe is bent in multiple sections.

[0010] Preferably, a plurality of the convex strips are distributed in a ring shape on the inner wall of the silencer, and the spacing distances between them are the same.

[0011] Preferably, the plurality of friction reflective sheets are arranged to be inclined toward the air outlet, and the surfaces of the convex strips and the friction reflective sheets are provided with a plurality of small holes.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the oxygen generator silencer makes the noise contact with the convex strips, the friction reflection sheet and the inner wall of the silencer tube, and the sound waves will rebound between them, so that the noise will be attenuated in the reflection process, thereby reducing the noise; further, the surface of the silencer filter plate, the convex strips and the friction reflection sheet are all provided with a plurality of fine holes, and the sound waves pass through the fine holes, and the noise will generate heat by friction with the fine holes, and then consume the energy of the noise by doing work; further, the fan blades will rotate under the action of the nitrogen flow, and the rotation of the fan blades can not only consume the kinetic energy of the nitrogen and reduce the noise, but also use the fan blades as obstacles to further weaken the noise, and finally use the length and curvature of the silencer pipe to reduce the noise, and when the sound passes through the pipe, it will be reflected and interfered in the pipe many times, thereby reducing the noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 It is a cross-sectional three-dimensional structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the main body component and the conical current collecting component of the utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the main component of the utility model;

[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the silencer pipe of the utility model;

[0018] Figure 6 It is a schematic diagram of the planar structure of the conical current collecting assembly of the utility model.

[0019] In the figure: 1. Main body assembly; 101. Silencer cylinder; 102. Silencer cover; 103. Raised strip; 104. Friction reflector; 105. Silencer filter screen; 106. Round shaft; 107. Fan blade; 108. Air outlet; 2. Conical collector assembly; 201. Acceleration cover; 202. Throat; 203. Diffuser cover; 3. Silencer duct. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides a technical solution: comprising a main body component 1, wherein a conical current collecting component 2 is fixedly installed on the main body component 1, and a muffler pipe 3 is fixedly installed on the bottom end of the main body component 1;

[0022] The main body component 1 includes a silencer 101 and a silencer cover 102. The silencer cover 102 is fixedly installed on the top of the silencer 101. A plurality of convex strips 103 are fixedly installed on the inner wall of the silencer 101. A plurality of friction reflective sheets 104 are fixedly installed on the inner surfaces of the plurality of convex strips 103 from top to bottom. A silencer filter plate 105 is fixedly embedded in the bottom of the silencer 101. A circular shaft 106 is rotatably plugged in the center of the bottom surface of the silencer filter plate 105. A circular block is fixedly installed at the bottom end of the circular shaft 106. A plurality of fan blades 107 are fixedly plugged in the side of the circular block. An air outlet 108 is fixedly installed at the bottom end of the silencer 101.

[0023] In this embodiment, the conical current collecting assembly 2 includes an acceleration cover 201 and a throat 202. The throat 202 is fixedly installed at the bottom of the acceleration cover 201, and a diffusion cover 203 is fixedly installed at the bottom end of the throat 202. The acceleration cover 201 is arranged in a conical shape, and the cross-section of the diffusion cover 203 is arranged in a hyperbolic shape. After the nitrogen enters the collector, it is gradually accelerated to form a higher wind speed at the throat 202, and the airflow coming out of the throat 202 is evenly diffused along the hyperbolic section. The airflow coming out of the collector can fill the entire flow channel of the silencer 101. Therefore, the airflow is slowly accelerated and then evenly diffused. The flow area after the throat 202 is increased, so that the airflow deceleration is more sufficient.

[0024] A muffler pipe 3 is fixedly installed at the bottom of the air outlet 108. The muffler pipe 3 is arranged in multiple bends. When the sound wave is transmitted to the muffler pipe 3, the length and bend of the pipe are used to reduce noise. When the sound passes through the pipe, it will be reflected and interfered in the pipe for many times, thereby reducing the noise.

[0025] The plurality of ridges 103 are distributed in a ring shape on the inner wall of the silencer 101, and the spacing between them is the same. The noise will contact the ridges 103, the friction reflection sheet 104 and the inner wall of the silencer 101, and a plurality of concave canyon grooves will be formed between the ridges 103 and the wall of the silencer 101, and the sound waves will rebound in the canyon grooves.

[0026] The plurality of friction reflection sheets 104 are inclined toward the air outlet 108, and the surfaces of the convex strips 103 and the friction reflection sheets 104 are provided with a plurality of small holes. The sound waves are discharged to the silencer filter screen 105, and the surface of the silencer filter screen 105, the plurality of convex strips 103, and the friction reflection sheets 104 are provided with a plurality of fine small holes. When the sound waves pass through the fine small holes, the noise will generate heat by friction with the fine small holes, and then consume the energy of the noise by doing work, thereby reducing noise emission.

[0027] When in use, when nitrogen is discharged, it will enter the silencer 101 through the conical collector assembly 2. When passing through the conical collector assembly 2, its front half is a conical acceleration cover 201, and the rear half is a diffusion cover 203 that is approximately hyperbolic. A throat 202 with a large convergence degree is formed in the transition part between the two sections. After the nitrogen enters the collector, it is gradually accelerated, and a higher wind speed is formed at the throat 202. The airflow coming out of the throat 202 is evenly diffused along the hyperbolic section. The airflow coming out of the collector can fill the entire flow channel of the silencer 101. Therefore, the airflow is slowly accelerated and then evenly diffused. The flow area after the throat 202 is increased, making the airflow deceleration more sufficient. At the same time, the noise when the nitrogen is discharged will also pass through the diffusion cover 203. The noise diffuses into the silencer 101, and then the noise contacts the convex strips 103, the friction reflective sheet 104 and the inner wall of the silencer 101, and a number of concave canyon grooves are formed between the convex strips 103 and the wall of the silencer 101, and the sound waves bounce back in the canyon grooves. At the same time, the sound waves are also affected by the friction reflective sheet 104 and bounce back, so that the noise is attenuated during the reflection process, thereby reducing the noise. At the same time, the sound waves are discharged to the silencer filter plate 105, and a number of fine holes are provided on the surface of the silencer filter plate 105, the surface of the convex strips 103 and the friction reflective sheet 104. When the sound waves pass through the fine holes, the noise will generate heat by friction with the fine holes, and then consume the energy of the noise by doing work, thereby reducing noise emissions.

[0028] At the same time, after passing through the silencer filter plate 105, the sound wave will propagate to the fan blade 107. The fan blade 107 will rotate under the action of the nitrogen flow. The rotation of the fan blade 107 can not only consume the kinetic energy of the nitrogen, but also reduce the discharge speed of the nitrogen and the noise. At the same time, after the sound wave is transmitted to the fan blade 107, the fan blade 107 is used as an obstacle to further weaken the noise. Finally, the sound wave is transmitted to the silencer pipe 3, and the noise is reduced by using the length and curvature of the pipe. When the sound passes through the pipe, it will be reflected and interfered in the pipe many times, thereby reducing the noise.

[0029] To sum up, the silencer of the oxygen generator makes the noise contact with the convex strips, the friction reflective sheet and the inner wall of the silencer tube, and the sound waves will rebound between them, so that the noise will be attenuated in the reflection process, thereby reducing the noise. Furthermore, a number of fine holes are arranged on the surface of the silencer filter plate, the convex strips and the friction reflective sheet. When the sound waves pass through the fine holes, the noise will generate heat by friction with the fine holes, and then consume the energy of the noise by doing work. Furthermore, the fan blades will rotate under the action of the nitrogen flow. The rotation of the fan blades can not only consume the kinetic energy of the nitrogen and reduce the noise, but also use the fan blades as obstacles to further weaken the noise. Finally, the length and curvature of the silencer pipe are used to reduce the noise. When the sound passes through the pipe, it will be reflected and interfered in the pipe many times, thereby reducing the noise.

[0030] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0032] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be fixed, connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oxygen concentrator silencer, comprising a main assembly (1), characterized in that : The main body component (1) is fixedly mounted with a conical current collecting component (2), and the bottom end of the main body component (1) is fixedly mounted with a silencer pipe (3); The main body component (1) comprises a silencer (101) and a silencer cover (102); the silencer cover (102) is fixedly mounted on the top of the silencer (101); a plurality of convex strips (103) are fixedly mounted on the inner wall of the silencer (101); a plurality of friction reflective sheets (104) are fixedly mounted on the inner surfaces of the plurality of convex strips (103) in sequence from top to bottom; a silencer filter screen (105) is fixedly embedded in the bottom of the silencer (101); a circular shaft (106) is rotatably plugged in the center of the bottom surface of the silencer filter screen (105); a circular block is fixedly mounted on the bottom end of the circular shaft (106); a plurality of fan blades (107) are fixedly plugged in the side of the circular block; and an air outlet (108) is fixedly mounted on the bottom end of the silencer (101).

2. The oxygen concentrator silencing device according to claim 1, characterized in that: The conical current collecting assembly (2) comprises an acceleration cover (201) and a throat (202); the throat (202) is fixedly mounted on the bottom of the acceleration cover (201), and the diffusion cover (203) is fixedly mounted on the bottom end of the throat (202).

3. The oxygen concentrator silencing device according to claim 2, characterized in that: The acceleration cover (201) is arranged in a conical shape, and the cross section of the diffusion cover (203) is arranged in a hyperbolic shape.

4. The oxygen concentrator silencing device according to claim 1, characterized in that: A silencer pipe (3) is fixedly mounted at the bottom end of the air outlet (108), and the silencer pipe (3) is arranged in multiple curved sections.

5. The oxygen concentrator silencing device according to claim 1, characterized in that: A plurality of the convex strips (103) are distributed in a ring shape on the inner wall of the silencer (101), and the spacing distances between them are the same.

6. The oxygen concentrator silencing device according to claim 1, characterized in that: The plurality of friction reflective sheets (104) are arranged to be inclined in the direction of the air outlet (108), and the surfaces of the convex strips (103) and the friction reflective sheets (104) are provided with a plurality of small holes.

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