Combined silencing device

Abstract

The utility model discloses a combined silencing device, and belongs to the technical field of pipeline silencing. Comprising an inner sleeve and an outer sleeve, a pipeline is sleeved with the inner sleeve, and the inner sleeve is sleeved with the outer sleeve; the sound-absorbing cotton is attached to the inner wall of the inner sleeve; the inner side of the outer sleeve is fixedly connected with a plurality of partition plates distributed in the circumferential direction, the inner side of the outer sleeve is also attached to sound-absorbing cotton, and the sound-absorbing cotton is located between every two adjacent partition plates; the two end assemblies are arranged at the two ends of the inner sleeve and the two ends of the outer sleeve correspondingly and used for forming a closed space between the inner sleeve and the outer sleeve. The combined type silencing device has the beneficial effect that the combined type silencing device is good in universality.

Description

Technical Field

[0001] This application relates to the technical field of pipeline sound insulation, and more specifically, to a combined silencing device. Background Art

[0002] A pipeline is a device formed by connecting pipes, pipe connectors, valves, etc. for transporting gases, liquids, or fluids with solid particles. Usually, after the fluid is pressurized by a blower, compressor, pump, boiler, etc., it flows from the high-pressure part of the pipeline to the low-pressure part. However, when the fluid flows at a relatively high speed in the pipeline, it will generate a relatively large noise. Therefore, a sound insulation structure needs to be provided on the pipeline. When retrofitting existing old pipelines, a sound insulation sleeve is usually installed in a certain area of the pipeline. However, the existing sound insulation sleeves are usually integrally arranged and can only be installed as a whole. To ensure the sound insulation effect, the sound insulation sleeves are usually large in size and cannot adjust the installation range, resulting in poor versatility.

[0003] The structure of the product can refer to a pipeline silencer disclosed in the Chinese patent document with the publication number: CN213333039U, which includes: a sound insulation component, including an inner buffer layer, an inner arc plate is arranged outside the inner buffer layer, outer exhibition plates are arranged at both ends of the inner arc plate, an outer arc plate is arranged outside the inner arc plate, the two ends of the outer arc plate are arranged on the outer exhibition plates, absorption holes are formed through the inner arc plate, a number of inner sound insulation plates and outer sound absorption plates are arranged between the inner arc plate and the outer arc plate, an arc-shaped plate is arranged on the inner wall of the outer arc plate, a sound absorption material is filled between the inner arc plate and the outer arc plate, end arc rings are arranged at both ends of the inner arc plate and the outer arc plate, and the inner sound insulation plates and the outer sound absorption plates are both arc-shaped structures; a connection and fixation component, with at least two pairs in number, arranged at both ends of the sound insulation component for fixing both ends of the sound insulation component.

[0004] In the above structure, due to the integral arrangement, there is a problem that the installation range cannot be adjusted and the versatility is poor.

[0005] Therefore, a combined silencing device with good versatility is needed. Summary of the Utility Model

[0006] The content part of this application is used to briefly introduce the concepts, which will be described in detail in the following specific implementation part. The content part of this application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0007] To solve the technical problems mentioned in the above background art section, some embodiments of the present application provide a combined sound-absorbing device, including: an inner sleeve and an outer sleeve, the inner sleeve is used to be sleeved on a pipeline, and the outer sleeve is sleeved on the inner sleeve; a sound-absorbing cotton, which is attached to the inner wall of the inner sleeve; a plurality of circumferentially distributed partition plate members are fixedly connected to the inner side of the outer sleeve, and the inner side of the outer sleeve is also attached to the sound-absorbing cotton, and the sound-absorbing cotton is located between two adjacent partition plate members; an end head assembly, there are two of them, which are respectively arranged at both ends of the inner sleeve and the outer sleeve, and are used to form a closed space between the inner sleeve and the outer sleeve.

[0008] Further, there is an inner sleeve and an outer sleeve, the inner sleeve is used to be sleeved on a pipeline, and the outer sleeve is sleeved on the inner sleeve; a sound-absorbing cotton, which is attached to the inner wall of the inner sleeve; a plurality of circumferentially distributed partition plate members are fixedly connected to the inner side of the outer sleeve, and the inner side of the outer sleeve is also attached to the sound-absorbing cotton, and the sound-absorbing cotton is located between two adjacent partition plate members; an end head assembly, there are two of them, which are respectively arranged at both ends of the inner sleeve and the outer sleeve, and are used to form a closed space between the inner sleeve and the outer sleeve.

[0009] Further, the partition plate member includes: a plate member part whose one end abuts against the inner sleeve and a mounting part fixed on the outer sleeve, a receiving groove for receiving the plate member part is opened on the mounting part, one end of the plate member part extends out of the receiving groove and abuts against the outer wall of the inner sleeve, and a buffer pad is arranged in the receiving groove.

[0010] Further, the end head assembly includes: two semi-circular plates whose one ends are hinged to each other and connection grooves opened on one side of the two semi-circular plates for one end of the outer sleeve to be embedded;

[0011] On the other side of the semi-circular plate, there is a connecting part, and a connecting hole for installing a bolt group is opened on the connecting part.

[0012] Further, a threaded hole extending to the connection groove at one end is opened on the semi-circular plate, and one end of the bolt passes through the threaded hole and extends into the connection groove and abuts against the outer sleeve.

[0013] Further, a damping layer fitting to the pipeline is arranged on the top block.

[0014] Further, the inner sleeve includes two first semi-cylinders whose one sides are hinged to each other, and connection protrusions are arranged on the other sides of the two first semi-cylinders, and through holes for installing a bolt group are opened on the connection protrusions.

[0015] Further, the outer sleeve includes two second semi-cylinders, the two second semi-cylinders are spliced into a cylindrical structure, arc grooves are opened along the circumference at one ends of the two second semi-cylinders, and flanges embedded into the arc grooves are arranged at the other ends.

[0016] Further, connection bosses are fixedly arranged at both ends of the first semi-cylinder, and mounting holes axially penetrating through the first semi-cylinder are opened on the connection bosses.

[0017] The beneficial effects of the present application are as follows: a modular muffling device with good versatility is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings forming a part of this application are used to provide a further understanding of the present application, making other features, objectives, and advantages of the present application more obvious. The schematic embodiments and descriptions thereof in the drawings are used to explain the present application and do not constitute an improper limitation to the present application.

[0019] In addition, throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements and components are not necessarily drawn to scale.

[0020] In the drawings:

[0021] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0022] Figure 2 is Figure 1 an exploded schematic diagram of the embodiment;

[0023] Figure 3 is Figure 1 a cross-sectional view of the embodiment.

[0024] Reference numerals:

[0025] 100, inner sleeve; 101, outer sleeve; 102, sound-absorbing cotton; 103, partition member; 104, end component; 105, first half cylinder; 106, connecting protrusion; 107, through hole; 108, first hinge head; 109, second hinge head; 110, connecting boss; 111, mounting hole; 112, plate part; 113, mounting part; 114, receiving groove; 115, buffer pad; 116, second half cylinder; 117, arc groove; 118, flange; 119, semi-circular plate; 121, connecting part; 122, connecting hole; 123, threaded hole; 124, first connecting head; 125, second connecting head; 126, limiting protrusion; 127, limiting groove; 128, top block; 129, screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0027] In addition, it should be noted that for the convenience of description, only the parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0028] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions executed by these devices, modules or units or their interdependent relationships.

[0029] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0030] The present disclosure will be described in detail below with reference to the drawings and in combination with embodiments.

[0031] Refer to Figures 1-3 , the combined muffler device includes: an inner sleeve 100, an outer sleeve 101, a sound-absorbing cotton 102, a partition plate member 103, and an end head assembly 104. The inner sleeve 100 is used to be sleeved on a pipeline, and the outer sleeve 101 is sleeved on the inner sleeve 100. The sound-absorbing cotton 102 is fixedly attached to the inner side of the inner sleeve 100 and is provided with a plurality of circumferentially, and the sound-absorbing cotton 102 extends along the axial direction of the inner sleeve 100.

[0032] The inner sleeve 100 includes two first half cylinders 105 that are hinged to each other on one side. On the other side of the two first half cylinders 105, there are connection protrusions 106, and through holes 107 for installing bolt groups are opened on the connection protrusions 106. By sleeving the two first half cylinders 105 on the pipeline, bolts pass through the through holes 107 and then nuts are installed to install the inner sleeve 100.

[0033] In one embodiment, a first hinge head 108 and a second hinge head 109 are respectively fixedly provided on one side of the two first half cylinders 105. The first hinge head 108 and the second hinge head 109 are hinged to each other.

[0034] Connection bosses 110 are fixedly provided at both ends of the first half cylinder 105, and mounting holes 111 that penetrate axially along the first half cylinder 105 are opened on the connection bosses 110.

[0035] In one embodiment, the two inner sleeves 100 are sleeved on the pipeline end to end so that the connection bosses 110 correspond to each other. Bolts pass through the mounting holes 111 and then nuts are installed to install the two inner sleeves 100 end to end.

[0036] A plurality of partition plates 103 are provided and are fixedly arranged on the inner side of the outer sleeve 101 along the circumferential direction. The partition plate 103 includes: a plate portion 112 with one end abutting against the inner sleeve 100 and a mounting portion 113 fixed on the outer sleeve 101. A receiving groove 114 for receiving the plate portion 112 is formed on the mounting portion 113. One end of the plate portion 112 extends out of the receiving groove 114 and abuts against the outer wall of the inner sleeve 100. A buffer pad 115 is arranged in the receiving groove 114.

[0037] The outer sleeve 101 includes two second half cylinders 116. The two second half cylinders 116 are spliced into a cylindrical structure. Arc grooves 117 are formed along the circumferential direction at one ends of the two second half cylinders 116, and flanges 118 embedded in the arc grooves 117 are arranged at the other ends, so that the two outer sleeves 101 can be connected end to end through the arc grooves 117 and the flanges 118.

[0038] When the outer sleeve 101 is sleeved on the inner sleeve 100, one end of the plate portion 112 abuts against the outer wall of the inner sleeve 100.

[0039] Sound-absorbing cotton 102 is also attached to the inner side of the outer sleeve 101 between two adjacent partition plates 103.

[0040] The end head assembly 104 includes: two semi-circular plates 119 and connection grooves 122 formed on one sides of the two semi-circular plates 119 for one end of the outer sleeve 101 to be embedded. Threaded holes 123 extending to the connection grooves 122 at one ends are formed on the semi-circular plates 119. One end of a bolt passes through the threaded hole 123 and extends into the connection groove and abuts against the outer sleeve 101. A closed space is formed between the inner sleeve 100 and the outer sleeve 101 to ensure the sound-absorbing effect.

[0041] In one embodiment, a first connection head 124 and a second connection head 125 are respectively and fixedly connected to one sides of the two semi-circular plates 119. The first connection head 124 and the second connection head 125 are hinged to each other. Connection portions 121 are arranged on the other sides of the two semi-circular plates 119. Connection holes 122 for installing bolt groups are formed on the connection portions 121.

[0042] A plurality of limiting protrusions 126 are fixedly arranged on the inner side of the inner sleeve 100 along the circumferential direction. The limiting protrusions 126 and the sound-absorbing cotton 102 are arranged at intervals. Limiting grooves 127 are formed on the limiting protrusions 126. A top block 128 is slidably connected in the limiting grooves 127. A screw rod 129 passing through the inner sleeve 100 and extending into the limiting groove 124 at one end is threadedly connected to the inner sleeve 100. One end of the screw rod 129 abuts against the top block 125. By rotating the screw rod 129, the top block 125 abuts against the pipeline for installing the inner sleeve 100. A damping layer fitting to the pipeline is arranged on the top block 125 for buffering the vibration of the pipeline.

[0043] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the embodiments of the present disclosure that have similar functions.

Claims

1. Combined silencer, characterized in that: include: An inner sleeve and an outer sleeve, the inner sleeve is used to be sleeved on the pipe, and the outer sleeve is sleeved on the inner sleeve; Sound-absorbing cotton is fitted on the inner wall of the inner sleeve; A plurality of circumferentially distributed partition plates are fixedly connected to the inner side of the outer sleeve, and the inner side of the outer sleeve is also fitted with sound-absorbing cotton, which is located between two adjacent partition plates; There are two end head assemblies, which are respectively arranged at the two ends of the inner sleeve and the outer sleeve, and are used to form a closed space between the inner sleeve and the outer sleeve.

2. The combined silencing device according to claim 1, characterized in that: A limiting protrusion is fixed circumferentially on the inner side of the inner sleeve, the limiting protrusion is spaced apart from the sound-absorbing cotton, a limiting groove is provided on the limiting protrusion, a top block is slidably connected in the limiting groove, a screw rod is threadedly connected on the inner sleeve, which passes through the inner sleeve and one end of which extends into the limiting groove, and one end of the screw rod abuts against the top block.

3. The combined silencing device according to claim 2, characterized in that: The partition plate comprises: a plate portion with one end abutting against the inner sleeve and a mounting portion fixed on the outer sleeve, wherein the mounting portion is provided with a receiving groove for accommodating the plate portion, one end of the plate portion extends out of the receiving groove and abuts against the outer wall of the inner sleeve, and a buffer pad is arranged in the receiving groove.

4. The combined silencing device according to claim 3, characterized in that: The end head assembly includes: two half-ring plates hinged to each other at one end and a connection groove provided on one side of the two half-ring plates for one end of the outer sleeve to be inserted; A connecting portion is provided on the other side of the semi-ring plate, and a connecting hole for installing a bolt group is provided on the connecting portion.

5. The combined silencing device according to claim 4, characterized in that: The semi-ring plate is provided with a threaded hole with one end extending into the connecting groove, and one end of the bolt passes through the threaded hole, extends into the connecting groove and abuts against the outer sleeve.

6. The combined silencing device according to claim 5, characterized in that: The top block is provided with a damping layer which is attached to the pipeline.

7. The combined silencing device according to claim 6, characterized in that: The inner sleeve comprises two first half-sleeves hinged to each other on one side, and the other side of the two first half-sleeves is provided with connecting protrusions, and the connecting protrusions are provided with through holes for installing bolt groups.

8. The combined silencing device according to claim 7, characterized in that: The outer sleeve comprises two second half-sleeves, which are spliced ​​into a cylindrical structure. One end of the two second half-sleeves is provided with an arc groove opened along the circumferential direction, and the other end is provided with a flange embedded in the arc groove.

9. The combined silencing device according to claim 8, characterized in that: The first half-cylinder is fixedly provided with connecting bosses at both ends, and a mounting hole penetrating along the axial direction of the first half-cylinder is opened on the connecting bosses.

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