Pipeline damping noise reduction structure

Abstract

The utility model provides a pipeline damping noise reduction structure which comprises a guide pipe, the outer portion of the middle section of the guide pipe is coaxially sleeved with a sleeve, an annular containing cavity is formed between the inner wall of the sleeve and the outer wall of the guide pipe, a through hole is formed in the range, corresponding to the containing cavity, of the side wall of the guide pipe, and damping plates are arranged in the containing cavity in the circumferential direction; the damping plate is movably arranged in the containing cavity around the circumference, the inner surface of the damping plate faces the guide pipe, a strip-shaped groove is formed in the inner surface of the damping plate, the extending direction of the strip-shaped groove is perpendicular to the axis of the guide pipe, a gap is formed between the inner surface of the damping plate and the outer wall of the guide pipe, and a mounting hole is formed in the side wall of the sleeve and used for mounting and taking the damping plate. A sealing plate is arranged in the mounting hole. And a detachable damping plate is arranged, so that later maintenance is facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of silencers, and in particular relates to a pipeline damping silencer structure. Background Art

[0002] Most of the existing pipe silencers have a mesh plate inside the pipe, and use the holes on the mesh plate to form a sound-absorbing structure to achieve the purpose of silence. After long-term use, this type of silencer is prone to dust adhesion on the mesh, resulting in the shrinkage of the mesh holes, affecting the gas flow and silencer effect. Since the mesh plate of this type of silencer is set inside the pipe, the subsequent maintenance and cleaning work is inconvenient. Utility Model Content

[0003] In order to solve the deficiencies in the prior art, the utility model provides a pipeline damping and silencing structure with a detachable damping plate to facilitate subsequent maintenance.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] A pipeline damping and silencing structure comprises a conduit, wherein a sleeve is coaxially sleeved on the outside of the middle section, a circular accommodating cavity is formed between the inner wall of the sleeve and the outer wall of the conduit, a through hole is opened on the side wall of the conduit corresponding to the range of the accommodating cavity, damping plates are arranged along the circumference inside the accommodating cavity, the damping plates are arranged to move around the circumference in the accommodating cavity, the inner surface of the damping plate faces the conduit, a strip groove is opened on the inner surface of the damping plate, the extension direction of the strip groove is perpendicular to the axis of the conduit, and there is a gap between the inner surface of the damping plate and the outer wall of the conduit, and a mounting hole is opened on the side wall of the sleeve for installing and removing the damping plate, and a sealing plate is provided in the mounting hole.

[0006] The beneficial effect of the utility model is that the damping plate used for silencer in the present solution can be disassembled and assembled through the mounting hole, thereby facilitating the cleaning of the damping plate, and after the damping plate is removed, the conduit and the through hole can be cleaned through the accommodating cavity, making the later maintenance and cleaning of the silencer more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0008] Figure 1 A schematic diagram of the external structure of the present application is shown.

[0009] Figure 2 A cross-sectional view of the present application along the normal direction of the catheter is shown.

[0010] Figure 3 A cross-sectional view of the present application along the axial direction of the catheter is shown.

[0011] Markings in the figure: conduit -1, through hole -11, connecting flange -12, arc spring sheet -13, sleeve -2, accommodating cavity -21, mounting hole -22, damping plate -3, strip groove -31, sealing plate -4, retaining frame -5, card slot -51. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0013] like Figures 1 to 3 As shown, a pipeline damping and silencing structure includes a conduit 1, wherein a sleeve 2 is coaxially sleeved on the outside of the middle section, a circular accommodating chamber 21 is formed between the inner wall of the sleeve 2 and the outer wall of the conduit 1, a through hole 11 is opened on the side wall of the conduit 1 within the range of the accommodating chamber 21, damping plates 3 are arranged along the circumference inside the accommodating chamber 21, the damping plates 3 are arranged to move around the circumference in the accommodating chamber 21, the inner surface of the damping plate 3 faces the conduit 1, a strip groove 31 is opened on the inner surface of the damping plate 3, the extension direction of the strip groove 31 is perpendicular to the axis of the conduit 1, and there is a gap between the inner surface of the damping plate 3 and the outer wall of the conduit 1, and a mounting hole 22 is opened on the side wall of the sleeve 2 for mounting and removing the damping plate 3, and the mounting hole 22 is provided with a sealing plate 4.

[0014] Working principle: when the gas flows through the through hole 11, the airflow close to the inner wall of the conduit 1 will pass through the through hole 11 into the gap between the damping plate 3 and the conduit 1 and the strip groove 31, and change the flow rate and frequency of part of the airflow through the strip groove 31, so as to achieve the purpose of silencing; and the silencer of this structure, its damping plate 3 can be disassembled and assembled through the mounting hole 22, so as to facilitate the cleaning of the damping plate 3, and after removing the damping plate 3, the conduit 1 and the through hole 11 can be cleaned through the accommodating cavity 21; when removing or installing the damping plate 3, it is only necessary to move the damping plate 3 around the circumference of the accommodating cavity 21 to move the damping plate 3 to the mounting hole 22, so as to facilitate the removal of the damping plate 3 from the mounting hole 22.

[0015] Preferably, Figure 1 As shown, both ends of the conduit 1 are provided with connecting flanges 12 to facilitate installation in a pipeline.

[0016] Preferably, Figure 2 As shown, the through hole 11 is a long strip structure, and its length direction is consistent with the axial direction of the conduit 1 to increase the area in contact with the gas, so that more gas enters the accommodating chamber 21 and contacts the damping plate 3, while preventing dust from clogging the through hole 11.

[0017] Preferably, Figure 1 , Figure 2 As shown, both ends of the accommodating cavity 21 are provided with a retaining frame 5 of a circular ring structure, and the retaining frame 5 is rotatably arranged around the axis of the conduit 1. A pair of card slots 51 are opened on the opposite sides of the two retaining frames 5, and the two ends of the damping plate 3 are respectively arranged in the pair of card slots 51 of the two retaining frames 5, so that all the damping plates 3 can be driven to rotate around the axis of the conduit 1 by toggling the retaining frame 5 or one of the damping plates 3, so as to move the damping plate 3 to the position where the mounting hole 22 is located, thereby facilitating the installation and removal of the damping plate 3.

[0018] Preferably, Figure 1 , Figure 3 As shown, an outwardly protruding arc-shaped spring sheet 13 is provided at the position of the mounting hole 22 on the outer wall of the conduit 1, which is used to push the damping plate 3 moved to the position of the mounting hole 22 out of the mounting hole 22 to facilitate the removal of the damping plate 3. When installing the damping plate 3, it is necessary to press the damping plate 3 inwardly and push the damping plate 3 around the conduit 1 into the accommodating cavity 21.

[0019] Preferably, Figure 2 , Figure 3 As shown, the sealing plate 4 is mounted on the outside of the sleeve 2 by screws to facilitate disassembly and assembly.

[0020] The above is only a preferred embodiment of the utility model, and does not mean that it is the only one or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.

Claims

1. A pipeline damping and silencing structure, characterized in that: The invention comprises a conduit (1), wherein a sleeve (2) is coaxially sleeved on the outside of a middle section thereof, a circular accommodating chamber (21) is formed between the inner wall of the sleeve (2) and the outer wall of the conduit (1), a through hole (11) is provided on the side wall of the conduit (1) within the range of the accommodating chamber (21), damping plates (3) are arranged along the circumference inside the accommodating chamber (21), the damping plates (3) are arranged to move around the circumference in the accommodating chamber (21), the inner surface of the damping plates (3) faces the conduit (1), a strip groove (31) is provided on the inner surface of the damping plates (3), the extension direction of the strip groove (31) is perpendicular to the axis of the conduit (1), and there is a gap between the inner surface of the damping plates (3) and the outer wall of the conduit (1), and a mounting hole (22) is provided on the side wall of the sleeve (2) for mounting and removing the damping plates (3), and a sealing plate (4) is provided on the mounting hole (22).

2. A pipeline damping and silencing structure according to claim 1, characterized in that: Both ends of the conduit (1) are provided with connecting flanges (12).

3. A pipeline damping and silencing structure according to claim 1, characterized in that: The through hole (11) is a long strip structure, and its length direction is consistent with the axial direction of the catheter (1).

4. A pipeline damping and silencing structure according to claim 1, characterized in that: Both ends of the accommodating cavity (21) are provided with retaining frames (5) of annular structure, the retaining frames (5) are rotatably arranged around the axis of the catheter (1), and opposite sides of the two retaining frames (5) are provided with paired card slots (51), and the two ends of the damping plate (3) are respectively arranged in the paired card slots (51) of the two retaining frames (5).

5. A pipeline damping and silencing structure according to claim 4, characterized in that: An outwardly protruding arc-shaped spring sheet (13) is provided at a position of the outer wall of the conduit (1) corresponding to the mounting hole (22), and is used to push the damping plate (3) moved to the position of the mounting hole (22) out of the mounting hole (22).

6. A pipeline damping and silencing structure according to claim 1, characterized in that: The sealing plate (4) is mounted on the outside of the sleeve (2) by means of screws.

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