A muffler

Abstract

The utility model relates to refrigeration machinery technical field, concretely relates to a silencer. The main body of silencer in prior art is formed trapezoidal structure through stretching, the wall thickness is thin after stretching, is easy to cause leakage, and poor pressure alternation resistance, and the sound attenuation effect is poor. A kind of silencer, the structure of both ends of main body is plane, and it is the structure of both ends opening, middle hollow, sealing mechanism of middle opening is sleeved on main body, and the outside of sealing mechanism is plane setting;Pipe is sleeved in sealing mechanism. The utility model structure is reasonable, can realize the function of sound attenuation and / or filtration, by the outside of main body and sealing mechanism being set as plane structure, processing cost is low, and efficiency is high, wall thickness is thickened at connecting place, pressure alternation resistance is good, life and reliability are good, and the sound attenuation effect is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration machinery technology, and more specifically to a muffler. Background Technology

[0002] A silencer is a noise reduction device used in airflow ducts that simultaneously transmit noise. It utilizes pipes with sound-absorbing linings, bends, or pipes with sudden changes in cross-sectional area or other discontinuous acoustic impedance to attenuate or reflect noise back into the duct. In the field of refrigeration machinery, the operation of refrigerants often generates noise, thus requiring the installation of silencers on the pipeline.

[0003] In existing technologies, such as Figure 4 As shown, the main body of the muffler is stretched to reduce its size so that it can be connected to the connecting pipe, forming a trapezoidal cross-section. This structure is prone to leakage due to the thinning of the wall after stretching. It also has poor resistance to alternating pressure, poor noise reduction effect, and high processing cost. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a muffler with a reasonable structure and convenient processing.

[0005] A silencer includes a main body, pipes at both ends, and connectors. The main body has a planar structure at both ends, and is open at both ends and hollow in the middle. A sealing mechanism with a middle opening is fitted on the main body, and the outer side of the sealing mechanism is planar. The pipes are fitted inside the sealing mechanism, and connectors are fitted on the pipes. At least one silencing ring is provided inside the main body.

[0006] This practical design features a reasonable structure. By making the outer surfaces of the main body and sealing mechanism planar, it achieves low processing costs, high efficiency, and improved noise reduction. Furthermore, the main body does not require stretching, making processing convenient and reducing waste generated during stretching, thus lowering processing costs and improving economic efficiency.

[0007] As a further improvement and supplement to the above solution, this utility model also includes the following additional technical features: The main body is equipped with annular rings, and the sealing mechanism is a sealing plate, which is pressed against the inner side of the annular rings at both ends of the main body; the thickness of the sealing plate is greater than the wall thickness of the main body. The structure is reasonable and easy to process. Increasing the wall thickness at the connection point improves resistance to alternating pressure, resulting in good service life and reliability.

[0008] The tube has an outwardly convex arc-shaped portion and a flange at the end to fit snugly against the sealing strip. The structure is reasonable, and the sealing strip is securely fixed.

[0009] The main body is equipped with at least one filter, which can effectively filter the air.

[0010] The connector is made of copper. It is easy to connect.

[0011] The main body, tubes, and sealing plates are made of stainless steel. This results in low cost.

[0012] The following beneficial effects can be achieved by using this utility model: The utility model has a reasonable structure and can achieve the functions of noise reduction and / or filtration. By setting the outer sides of the main body and sealing mechanism as a planar structure, the processing cost is low and the efficiency is high. The wall thickness at the connection point is increased, resulting in good resistance to alternating pressure, good service life and reliability, and a significantly improved noise reduction effect. Furthermore, the main body does not require stretching processing, making processing convenient and reducing waste generated during stretching, thus reducing processing costs and improving economic efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is the front view of this utility model.

[0015] Figure 3 This utility model Figure 2 A magnified view of a portion at point A shown.

[0016] Figure 4 This is a schematic diagram of the existing technology. Detailed Implementation

[0017] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0018] like Figure 1-3 As shown, this utility model is a silencer.

[0019] The silencer described in this embodiment includes a main body 1, tubes 2 at both ends, and a connector 3. The main body 1 has a planar structure at both ends, and is open at both ends with a hollow center. A sealing mechanism 4 with a central opening is fitted onto the main body 1, and the outer side of the sealing mechanism 4 is planar. The tubes 2 are fitted inside the sealing mechanism 4, and the connector 3 is fitted onto the tubes 2. The tubes 2 have a tapered section 23, i.e., a stepped hole for positioning. The connector 3 is located on the stepped hole of the tube 2. The opening of the connector 3 has a guide arc that gradually decreases in size. Simultaneously, a cylindrical ring 31, larger than other sections, is located on the outer side of one end of the connector 3, abutting against the end face of the tube 2, facilitating positioning and ensuring structural stability. The main body 1 contains at least one silencing ring 5. In this embodiment, two silencing rings 5 ​​are provided, one in the middle and one on each side, capable of silencing noise of different frequencies.

[0020] Furthermore, the main body 1 is provided with annular rings 11, and the sealing mechanism 4 is a sealing plate. The sealing plate is pressed against the inner side of the annular rings 11 at both ends of the main body 1, and the sealing plate has a circular sheet structure. The thickness of the sealing plate is greater than the wall thickness of the main body 1. The wall thickness at the connection is thickened, which provides good resistance to alternating pressure, as well as good service life and reliability.

[0021] Furthermore, the tube 2 has an outwardly protruding arc-shaped portion 21, and the end of the tube 2 has a flange 22 that fits into the sealing sheet. The arc-shaped portion 21 and the flange 22 hold the sealing sheet in place, effectively positioning it.

[0022] Furthermore, the main body 1 is provided with at least one filter, which can effectively filter substances. The filter and a sound-absorbing ring can also be used in combination.

[0023] Furthermore, the material of the connector 3 is copper.

[0024] Furthermore, the main body 1, the tube 2, and the sealing plate are made of stainless steel.

[0025] The above are preferred embodiments of the present utility model and do not limit the scope of protection of the present utility model. Any modifications and improvements made by those skilled in the art based on the design concept of the present utility model should be considered within the scope of protection of the present utility model.

Claims

1. A silencer comprising a main body (1), a pipe (2) at both ends and a joint (3), characterized in that: The main body (1) has a flat structure at both ends and is open at both ends and hollow in the middle. A sealing mechanism (4) with a middle opening is fitted on the main body (1), and the outer side of the sealing mechanism (4) is flat. The pipe (2) is fitted inside the sealing mechanism (4), and a connector (3) is fitted on the pipe (2). At least one sound-absorbing ring (5) is provided inside the main body (1).

2. The muffler of claim 1, wherein: The main body (1) is provided with an annular ring (11), and the sealing mechanism (4) is a sealing plate, which is pressed into the inner side of the annular ring (11) at both ends of the main body (1); the thickness of the sealing plate is greater than the wall thickness of the main body (1).

3. The muffler of claim 2, wherein: The tube (2) is provided with an outwardly protruding arc-shaped part (21), and the end of the tube (2) is provided with a flange (22) that fits with the sealing sheet.

4. The muffler of claim 1, wherein: The main body (1) is provided with at least one filter.

5. The muffler of any one of claims 1-4, wherein: The material of the connector (3) is copper.

6. The muffler of claim 2, wherein: The main body (1), tube (2) and sealing plate are made of stainless steel.

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