Exhaust silencer of compressor

Abstract

The compressor exhaust silencer comprises a first shell and a second shell, an air inlet pipe is arranged on the side wall of the first shell in a penetrating mode, and an air outlet pipe is arranged on the side wall of the second shell in a penetrating mode. The first shell and the second shell are in butt joint to form a silencer cavity, a cavity separation part is arranged in the silencer cavity, and the opening side of the cavity separation part faces the air inlet pipe. The cavity separating part is used for separating the silencer cavity into a first cavity communicated with the air inlet pipe and a second cavity communicated with the air outlet pipe; a plurality of protruding structures protruding towards the inner side are arranged on the circumferential side wall of the cavity separation part, and vent groove flow channels communicating with the first cavity and the second cavity are formed between the protruding structures and the side wall of a cavity separation part body. The cavity separating part is arranged to be matched with the protruding structures distributed in the circumferential direction, so that multi-stage capacity expansion and pressure reduction are formed by airflow in the double-cavity chamber, and the airflow pulsation noise is effectively reduced; therefore, the technical effects of compact structure and convenient assembly are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor exhaust device technical field, specifically, relate to a compressor exhaust muffler. BACKGROUND

[0002] In the exhaust process of piston compressor, gas pulsation and high-speed flow are easy to produce significant noise, and the existing exhaust muffler usually adopts multi-chamber structure to realize noise reduction. For example, by setting the partition plate with connecting pipe between the left and right chambers, the airflow path is guided to weaken the sound wave energy.

[0003] However, in such structure, the closed space formed by the partition plate and the chamber bottom is easy to retain the lubricating oil entering with the airflow, and the traditional partition plate structure lacks effective oil discharge path, which is easy to cause oil injection phenomenon after long-term accumulation, resulting in the decrease of compressor lubrication efficiency and even oil pollution of the exhaust system.

[0004] The above problems not only reduce the service life of the muffler, but also increase the operating energy consumption of the compressor due to the secondary ejection of oil. Therefore, there is an urgent need for an exhaust muffler structure that takes into account the noise reduction performance and oil self-discharge capacity. UTILITY MODEL CONTENTS

[0005] In view of the above technical problems in the related art, the utility model provides a compressor exhaust muffler, which can overcome the above shortcomings of the prior art.

[0006] To achieve the above technical purpose, the technical scheme of the utility model is as follows:

[0007] A compressor exhaust muffler;

[0008] The compressor exhaust muffler comprises a first shell and a second shell, a side wall of the first shell is provided with a gas inlet pipe, and a side wall of the second shell is provided with a gas outlet pipe; the first shell and the second shell are butted to form a muffler chamber, a partition cavity component is arranged in the muffler chamber, and the opening side of the partition cavity component is arranged towards the gas inlet pipe; the partition cavity component divides the muffler chamber into a first chamber communicated with the gas inlet pipe and a second chamber communicated with the gas outlet pipe; the circumferential side wall of the partition cavity component is provided with a plurality of inwardly protruding protruding structures, and the protruding structures and the body side wall of the partition cavity component form a ventilation groove flow channel communicating the first chamber and the second chamber.

[0009] Further, the protruding structures are distributed equidistantly along the circumference of the partition cavity component, and the number thereof is at least 3.

[0010] Further, the number of the protruding structures is 3, and the cross section of each protruding structure is in the shape of a circular arc.

[0011] Further, the cavity component is a semispherical structure, and a flat edge of an open end of the semispherical structure is fixedly connected to an inner wall of the first shell.

[0012] Further, the cavity component is a semispherical structure, and a flat edge of an open end of the semispherical structure is fixedly connected to an inner wall of the first shell.

[0013] Further, the cavity component is a semispherical structure, and a flat edge of an open end of the semispherical structure is fixedly connected to an inner wall of the first shell.

[0014] Further, the cavity component is a semispherical structure, and a flat edge of an open end of the semispherical structure is fixedly connected to an inner wall of the first shell.

[0015] Further, the cavity component is a semispherical structure, and a flat edge of an open end of the semispherical structure is fixedly connected to an inner wall of the first shell.

[0016] The beneficial effects of the utility model are as follows: the cavity component cooperates with the circumferentially distributed convex structures, so that the airflow forms multistage expansion and pressure reduction in the double-chamber, effectively reduces the airflow pulsation noise, and further achieves the technical effects of compact structure and convenient assembly; meanwhile, the cooperation of the convex structures and the ventilation groove flow channel strengthens the attenuation capacity of high-frequency noise, and realizes the optimized balance between the noise reduction performance of the compressor exhaust system and the manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is a whole structure perspective view of the compressor exhaust silencer according to the embodiment of the utility model;

[0019] Figure 2 It is a whole structure front view of the compressor exhaust silencer according to the embodiment of the utility model;

[0020] Figure 3 It is a whole structure perspective view of the compressor exhaust silencer according to the embodiment of the utility model;

[0021] Figure 4 It is a whole structure front view of the compressor exhaust silencer according to the embodiment of the utility model;

[0022] In the figure: 1, first shell; 2, second shell; 3, air inlet pipe; 4, air outlet pipe; 5, first chamber; 6, second chamber; 7, partitioning component; 8, protruding structure; 9, traditional communication pipe; 10, traditional partition. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art belong to the scope of protection of the utility model.

[0024] It should be understood that, in the description of the embodiments of the utility model, the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the embodiments of the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "several" is two or more than two, unless otherwise explicitly and specifically limited.

[0025] As Figures 1-3 As shown in the utility model embodiment described in the utility model embodiment, a compressor exhaust silencer, comprising a first shell 1 and a second shell 2, the side wall of the first shell 1 is provided with an air inlet pipe 3, the side wall of the second shell 2 is provided with an air outlet pipe 4, the first shell 1 and the second shell 2 are connected to form a silencer chamber, a partitioning component 7 is arranged in the silencer chamber, the opening side of the partitioning component 7 is arranged towards the air inlet pipe 3, the partitioning component 7 divides the silencer chamber into a first chamber 5 communicated with the air inlet pipe 3 and a second chamber 6 communicated with the air outlet pipe 4, the circumferential side wall of the partitioning component 7 is provided with a plurality of inwardly protruding protruding structures 8, and the protruding structures 8 and the body side wall of the partitioning component 7 form a ventilation groove flow channel communicating the first chamber 5 and the second chamber 6.

[0026] According to the compressor exhaust silencer provided by the embodiment of the utility model, in a specific embodiment, the protruding structures 8 are distributed along the circumferential direction of the cavity separating part 7 at equal intervals, and the number of the protruding structures 8 is at least three.

[0027] According to the compressor exhaust silencer provided by the embodiment of the utility model, in a specific embodiment, the number of the protruding structures 8 is three, and the cross section of each protruding structure 8 is in the shape of a circular arc.

[0028] According to the compressor exhaust silencer provided by the embodiment of the utility model, in a specific embodiment, the cavity separating part 7 is in the shape of a hemisphere, and the planar edge of the open end of the cavity separating part 7 is fixedly connected to the inner wall of the first shell 1.

[0029] According to the compressor exhaust silencer provided by the embodiment of the utility model, in a specific embodiment, the cavity separating part 7 is in the shape of a hemisphere, and the planar edge of the open end of the cavity separating part 7 is fixedly connected to the inner wall of the first shell 1.

[0030] According to the compressor exhaust silencer provided by the embodiment of the utility model, in a specific embodiment, the cavity separating part 7 is composed of a hemispherical structure and a columnar structure, and the open end of the hemispherical structure is connected to one end of the columnar structure.

[0031] According to the compressor exhaust silencer provided by the embodiment of the utility model, in a specific embodiment, the abutting surface of the first shell 1 and the second shell 2 is provided with a sealing gasket, and the thickness of the sealing gasket is 2-3 mm.

[0032] According to the compressor exhaust silencer provided by the embodiment of the utility model, in a specific embodiment, the total cross section area of the air passage flow channel is 1.2-1.5 times the cross section area of the air inlet pipe 3.

[0033] In order to facilitate the understanding of the above technical scheme of the utility model, the above technical scheme of the utility model is described in detail below through a specific use mode.

[0034] In the specific use, according to the compressor exhaust silencer provided by the embodiment of the utility model, the first shell 1 and the second shell 2 are provided; the side wall of the first shell 1 is provided with the air inlet pipe 3, and the side wall of the second shell 2 is provided with the air outlet pipe 4. The first shell 1 and the second shell 2 are enclosed to form a silencer chamber. The cavity separating part 7 is arranged between the first shell 1 and the second shell 2; one side of the opening of the cavity separating part 7 faces the direction of the air inlet pipe 3. The first chamber 5 and the second chamber 6 are formed under the separation of the cavity separating part 7; a plurality of protruding structures 8 protruding inward are arranged on the periphery of the side wall of the cavity separating part 7. The protruding structures 8 and the side wall of the body of the cavity separating part 7 form an air passage flow channel; the number of the protruding structures 8 is three or more than three.

[0035] In one of the solutions, the cavity separation component 7 is a cavity separation hemisphere structure, in the second solution, the cavity separation component 7 can also be a columnar structure with a rounded bottom corner, and in the third solution, the cavity separation component 7 is a combination of the cavity separation hemisphere structure and the columnar structure.

[0036] In summary, by means of the above technical scheme of the utility model, the cavity separation component is matched with the circumferentially distributed protruding structure, so that the airflow forms multi-stage expansion and pressure reduction in the double-chamber, effectively reducing the airflow pulsation noise; and further achieving the technical effects of compact structure and convenient assembly, and the cooperation design of the protruding structure and the air passage flow channel strengthens the attenuation ability of high-frequency noise, realizing the optimized balance of the noise reduction performance and the manufacturing cost of the compressor exhaust system.

[0037] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A compressor exhaust muffler, characterized in that, The device includes a first housing (1) and a second housing (2). An air inlet pipe (3) is provided through the side wall of the first housing (1), and an air outlet pipe (4) is provided through the side wall of the second housing (2). The first housing (1) and the second housing (2) are connected to form a muffler chamber. A partition component (7) is provided in the muffler chamber. The opening side of the partition component (7) faces the air inlet pipe (3). The partition component (7) divides the muffler chamber into a first chamber (5) connected to the air inlet pipe (3) and a second chamber (6) connected to the air outlet pipe (4). The circumferential side wall of the partition component (7) is provided with a plurality of inwardly protruding structures (8). The protruding structures (8) and the side wall of the partition component (7) form a ventilation channel connecting the first chamber (5) and the second chamber (6).

2. A compressor exhaust muffler according to claim 1, characterized in that, The protruding structures (8) are distributed at equal intervals along the circumference of the cavity component (7), and the number of them is at least 3.

3. A compressor exhaust muffler according to claim 2, characterized in that, The number of the protrusions (8) is 3, and the cross-section of each protrusion (8) is arc-shaped.

4. A compressor exhaust muffler according to claim 1, characterized in that, The cavity component (7) is a hemispherical structure, and the planar edge of its opening end is fixedly connected to the inner wall of the first shell (1).

5. A compressor exhaust muffler according to claim 1, characterized in that, The cavity component (7) is a columnar structure with rounded corners at the bottom, and its outer edge at the opening end is welded and fixed to the inner wall of the second shell (2).

6. A compressor exhaust muffler according to claim 1, characterized in that, The cavity component (7) is composed of a hemispherical structure and a columnar structure, wherein the open end of the hemispherical structure is connected to one end of the columnar structure.

7. A compressor exhaust muffler according to any one of claims 1-6, characterized in that, A sealing gasket is provided on the mating surface of the first housing (1) and the second housing (2), and the thickness of the sealing gasket is 2-3mm.

8. A compressor exhaust muffler according to claim 1, characterized in that, The total cross-sectional area of ​​the ventilation channel is 1.2-1.5 times that of the cross-sectional area of ​​the intake pipe (3).

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