Silencer

Abstract

The utility model discloses a silencer. The silencer comprises a shell. An inlet and an outlet are formed in the shell, at least one partition plate is arranged in the shell and divides the interior of the shell into a plurality of cavities, at least one through hole is formed in each partition plate, the through holes in every two adjacent partition plates are arranged in a staggered mode, and gas enters the shell from the inlet, sequentially passes through the through holes in the partition plates and is exhausted from the outlet in the gas advancing direction. The silencer is simple in structure, convenient to manufacture, low in manufacturing cost, firm, durable and good in silencing effect. The shell is designed to be flat, so that the shell can be conveniently installed on the vacuum pump, does not occupy extra space, and is convenient to install, weld and manufacture. By arranging the breather pipe, the gas collision probability and frequency are increased, the gas advancing path is lengthened, the energy of noise is consumed, and the noise is further reduced.

Description

Technical Field

[0001] The utility model relates to the field of silencing, in particular to a silencer. Background Art

[0002] In many vacuum application fields, relying solely on a vacuum pump cannot fully meet the actual process requirements. Different types of vacuum pumps can achieve completely different cost-effective ultimate vacuum or exhaust capacity. Different types of vacuum pumps also have different adaptability to different process media. Different vacuum processes also require various auxiliary systems to ensure that the vacuum pump or vacuum pump group can be stable and reliable.

[0003] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a new technical solution. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the purpose of the utility model is to provide a muffler with simple structure, convenient manufacturing and good noise reduction effect. The specific technical solution is as follows:

[0005] This patent provides a muffler, including a shell;

[0006] An inlet and an outlet are provided on the shell, and at least one partition is provided inside the shell. The partition divides the interior of the shell into multiple cavities. At least one through hole is provided on the partition. The through holes on two adjacent partitions are staggered. Along the forward direction of the gas, the gas enters the shell from the inlet, passes through the through holes on the partition in sequence, and is discharged from the outlet.

[0007] As a preferred solution of the silencer described in this patent, a ventilation pipe is installed on the through hole, and the ventilation pipe is accommodated in the shell.

[0008] As a preferred embodiment of the silencer described in this patent, the vent pipe extends from the partition toward a direction away from the advancing direction of the gas.

[0009] As a preferred solution of the silencer described in this patent, both ends of the ventilation pipe extend in a direction away from the partition.

[0010] As a preferred solution of the silencer described in this patent, a drainage hole is provided on one side of the partition close to the bottom of the shell;

[0011] A water outlet is provided on the shell body, and the water outlet is arranged at the bottom of the shell body or at a side wall close to the bottom of the shell body.

[0012] As a preferred solution of the silencer described in this patent, a one-way valve is provided at the outlet.

[0013] As a preferred solution of the silencer described in this patent, the shell is a flat rectangular shell.

[0014] As a preferred solution of the silencer described in this patent, the inlet is arranged at one end of the shell, and the outlet is arranged at the other end of the shell.

[0015] Compared with the prior art, the technical solution described in this patent has at least one or more of the following beneficial effects:

[0016] The muffler shell is designed to be flat, which is convenient for installation on the vacuum pump, does not take up extra space, is easy to install, and is also convenient for welding and manufacturing.

[0017] The patented silencer has a simple structure, is easy to manufacture, has a low manufacturing cost, is strong and durable, and has a good noise reduction effect.

[0018] Providing a vent pipe increases the probability and frequency of gas collisions, lengthens the gas forward path, consumes noise energy, and helps to further reduce noise.

[0019] Drain holes and water outlets are provided so that liquids, such as oil, water or detergent, etc., can settle to the bottom and be discharged.

[0020] A one-way valve is set to prevent impurities, liquids, etc. from entering the muffler and further entering the pump chamber connected to the muffler. On the other hand, the one-way valve helps to further reduce noise. The inside of the one-way valve is a labyrinth structure, which can further impact and consume noise energy, making the sound of the exhaust gas lighter.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the silencer described in this patent;

[0024] Figure 2 yes Figure 1 A schematic cross-sectional structure diagram of ;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the silencer described in this patent.

[0026] Among them, 1 is a shell, 11 is an inlet, 12 is an outlet, 13 is a partition, 14 is a vent pipe, 15 is a water outlet, and 16 is a one-way valve. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and should not be construed as limitations on the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, terms such as "provided with", "equipped with", "connected", "installed with", "set", "opened", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example

[0031] Please refer to Figure 1-3 ,like Figure 1-3 As shown, a silencer provided by an embodiment of the utility model includes a housing 1;

[0032] An inlet 11 and an outlet 12 are provided on the shell 1. At least one partition 13 is provided inside the shell 1. The partition 13 divides the shell into multiple cavities. At least one through hole is provided on the partition 13. Along the forward direction of the gas, the gas enters the shell from the inlet 11, passes through the through holes on the partition 13 in sequence, and is discharged from the outlet 12.

[0033] Preferably, the inlet 11 is arranged at one end of the housing 1, and the outlet 12 is arranged at the other end of the housing 1. In the example, the inlet 11 is arranged at the top of the housing. Of course, according to different installation positions and installation methods of the muffler, the inlet can also be arranged on the side wall or the bottom, etc.

[0034] In a preferred example, a vent pipe 14 is installed on the through hole, and the vent pipe 14 is accommodated in the shell. Preferably, the vent pipe 14 extends from the partition toward a direction away from the gas. Figure 2 As shown, both ends of the vent pipe 14 extend in a direction away from the partition. In the example, the vent pipe 14 is a cylindrical vent pipe. However, the present patent is not limited thereto, and the vent pipe can also be a cylindrical structure in a rectangular, triangular, elliptical or irregular shape. The provision of a vent pipe increases the probability and number of gas collisions, lengthens the gas forward path, consumes the energy of the noise, and helps to further reduce the noise. In the example, a gap is provided between the end of the vent pipe 14 and the adjacent partition.

[0035] In a preferred embodiment, a drainage hole is provided on one side of the partition 13 near the bottom of the shell; a water outlet 15 is provided on the shell, and the water outlet 15 is arranged at the bottom of the shell or at a side wall near the bottom of the shell. In the example, the water outlet 15 is arranged at a side wall near the bottom of the shell. With the drainage hole and the water outlet, liquids, such as oil, water or detergent, etc., can settle to the bottom and be discharged.

[0036] In a preferred embodiment, the outlet 12 is provided with a one-way valve 16. The one-way valve is provided to prevent impurities, liquids, etc. from entering the muffler and further entering the pump chamber connected to the muffler. On the other hand, the one-way valve helps to further reduce noise. The inside of the one-way valve is a labyrinth structure, which can further impact and consume noise energy, and the sound of the exhaust gas is lighter.

[0037] In a preferred embodiment, the housing 1 is a flat rectangular housing. The flat design of the muffler housing is convenient for installation on a vacuum pump, does not take up extra space, is easy to install, and is also convenient for welding and manufacturing.

[0038] Preferably, a mounting plate 17 is also provided on the housing. The mounting plate is configured to mount the housing on a device. For example, the housing is mounted on a vacuum pump through the mounting plate, and the inlet of the muffler is tightly connected to the outlet of the vacuum pump. In the example, mounting plates are provided on both sides of the housing in the radial direction. Further preferably, the mounting plate 17 is provided on a side close to the inlet.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "yet another embodiment", "another embodiment", "other embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0040] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify and vary the above embodiments within the scope of the present invention.

Claims

1. A muffler, characterized in that: It comprises a housing (1); An inlet (11) and an outlet (12) are provided on the shell (1), at least one partition (13) is provided inside the shell (1), the partition (13) divides the inside of the shell (1) into a plurality of cavities, at least one through hole is provided on the partition (13), and the through holes on two adjacent partitions (13) are staggered, and along the advancing direction of the gas, the gas enters the shell (1) from the inlet (11), passes through the through holes on the partition (13) in sequence, and is discharged from the outlet (12); The housing (1) is a flat rectangular housing; A mounting plate (17) is also provided on the housing; A drainage hole is provided on one side of the partition plate (13) close to the bottom of the shell (1); The shell (1) is provided with a water outlet (15), which is arranged at the bottom of the shell (1) or at a side wall close to the bottom of the shell (1).

2. The muffler according to claim 1, characterized in that: A vent pipe (14) is installed on the through hole, and the vent pipe (14) is accommodated in the shell (1).

3. The muffler according to claim 2, characterized in that: The ventilation pipe (14) extends from the partition plate (13) in a direction away from the advancing direction of the gas.

4. The muffler according to claim 3, characterized in that: Both ends of the ventilation pipe (14) extend in a direction away from the partition plate (13).

5. The muffler according to claim 1, characterized in that: The outlet (12) is provided with a one-way valve (16).

6. The muffler according to claim 1, characterized in that: The inlet (11) is arranged at one end of the shell (1), and the outlet (12) is arranged at the other end of the shell (1).

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