CN115789386A - Pipeline amortization structure, amortization pipeline and compressor unit - Google Patents
Pipeline amortization structure, amortization pipeline and compressor unit Download PDFInfo
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- CN115789386A CN115789386A CN202211492598.1A CN202211492598A CN115789386A CN 115789386 A CN115789386 A CN 115789386A CN 202211492598 A CN202211492598 A CN 202211492598A CN 115789386 A CN115789386 A CN 115789386A
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- 229920000742 Cotton Polymers 0.000 claims abstract description 24
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- 229910052751 metal Inorganic materials 0.000 claims abstract 2
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- 238000000576 coating method Methods 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 18
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
- 239000008397 galvanized steel Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000003584 silencer Effects 0.000 abstract description 7
- 238000004925 denaturation Methods 0.000 abstract description 3
- 230000036425 denaturation Effects 0.000 abstract description 3
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- 230000000694 effects Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001743 silencing effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
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- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 230000010349 pulsation Effects 0.000 description 1
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- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention provides a pipeline silencing structure, a silencing pipeline and a compressor unit, relates to the technical field of pipeline silencing, and solves the technical problems that in the prior art, the pipeline is internally provided with a silencer, so that the internal resistance of the pipeline is increased, and the economy is poor. The pipeline silencing structure comprises a first silencing layer and a second silencing layer, the second silencing layer is arranged on the outer circumferential side surface of the first silencing layer, and the first silencing layer and the second silencing layer are made of metal materials; or one of the first silencing layer and the second silencing layer is made of sound-absorbing material, and the other one is made of metal. The pipeline silencing structure provided by the invention is simple in structure and wraps the outer side of a pipeline needing silencing, so that the problems that the pipeline resistance and the economic performance are increased when a silencer is installed in the pipeline are solved, and the first silencing layer and the second silencing layer are both made of metal materials or one of the first silencing layer and the second silencing layer is made of metal materials, so that the defect that the noise reduction is poor due to high-temperature denaturation caused by only adopting silencing cotton can be effectively overcome.
Description
Technical Field
The invention relates to the technical field of pipeline silencing, in particular to a pipeline silencing structure, a silencing pipeline and a compressor unit.
Background
At present, the requirements of users on noise of indoor equipment such as special air conditioning devices and commercial unit type air conditioning devices are higher and higher, and the main sound sources of the noise are compressors and pipelines thereof, particularly air pipes and liquid pipes. The noise of the compressor is improved along with the technical level of each manufacturer, and the noise optimization has a certain result, but the noise in the pipeline changes at any time due to the working condition, the gas flow rate and the pulsation are not constant, and the generated noise frequency is also changed in a million manner.
The applicant has found that the prior art has at least the following technical problems:
the mode of making an uproar has package soundproof cotton and dress muffler at present often used pipeline, but to the high temperature pipeline, long-term the use can lead to soundproof cotton's performance variation because of high temperature, causes the noise cancelling effect relatively poor, and the muffler increases pipeline resistance and economic nature is poor.
Disclosure of Invention
The invention aims to provide a pipeline silencing structure, a silencing pipeline and a compressor unit, and solves the technical problems that in the prior art, the pipeline is internally provided with a silencer, so that the internal resistance of the pipeline is increased, and the economy is poor. The technical effects that can be produced by the preferred technical scheme of the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the pipeline silencing structure provided by the invention is of a cylindrical structure and comprises a first silencing layer and a second silencing layer, wherein the second silencing layer is arranged on the outer circumferential side surface of the first silencing layer, and the first silencing layer and the second silencing layer are both made of metal materials; or one of the first silencing layer and the second silencing layer is made of sound-absorbing materials, and the other one of the first silencing layer and the second silencing layer is made of metal materials.
Furthermore, the first silencing layer and the second silencing layer are made of metal materials and are evenly distributed with silencing through holes.
Further, the diameter of the silencing through hole in the second silencing layer is not larger than that of the silencing through hole in the first silencing layer.
Furthermore, the silencing through holes in the first silencing layer are formed in a mode that large holes and small holes are distributed at intervals; and/or the sound attenuation through holes on the second sound attenuation layer are distributed in a mode of large and small holes at intervals.
Furthermore, the silencing through holes in the second silencing layer and the silencing through holes in the first silencing layer are arranged in a staggered mode.
Further, the diameter D of the silencing through hole on the first silencing layer 1 The range of (A) is 3 mm-8 mm; the distance between two adjacent silencing through holes on the first silencing layer is 2D 1 ～4.5D 1 。
Further, the diameter D of the silencing through hole on the second silencing layer 2 In the range of 0.15D 1 mm～0.35D 1 mm, wherein D 1 The diameter of the silencing through hole on the first silencing layer is the diameter of the silencing through hole on the first silencing layer; the distance between two adjacent silencing through holes on the second silencing layer is 2D 1 ～4.5D 1 。
Further, the thickness of the first silencing layer is 0.15-0.75 mm; the thickness of the second sound-absorbing layer is 0.15 mm-0.75 mm.
Furthermore, the silencing through hole is of a round hole structure or a narrow slit structure.
Preferably, be provided with the damping layer between first amortization layer and the second amortization layer, be formed with the damping recess on the damping layer, the damping recess is along being on a parallel with the direction of first amortization layer axis extends, and is a plurality of the damping recess is along the circumferential direction interval distribution on damping layer.
Preferably, the first sound-deadening layer is provided with first grooves, the first grooves extend along a direction parallel to the axis of the first sound-deadening layer, and a plurality of the first grooves are distributed at intervals along the circumferential direction of the first sound-deadening layer; and/or a second groove is formed in the second sound-deadening layer, the second groove extends in a direction parallel to the axis of the second sound-deadening layer, and the plurality of second grooves are distributed at intervals in the circumferential direction of the second sound-deadening layer.
Preferably, a sound absorption cotton or a sound absorption coating is arranged between the first sound absorption layer and the second sound absorption layer.
Preferably, sound-absorbing cotton with the thickness of 5 mm-10 mm is arranged between the second sound-absorbing layer and the second sound-absorbing layer, or a sound-absorbing coating with the thickness of 1 mm-3 mm is arranged between the second sound-absorbing layer and the second sound-absorbing layer.
Preferably, the pipe silencing structure further comprises an inner silencing layer, the inner silencing layer is arranged on the inner side face of the first silencing layer, and the inner silencing layer is a sound-absorbing coating.
Preferably, the first silencing layer and the second silencing layer are both made of galvanized steel plates or aluminum alloys.
Preferably, the second amortization layer is for inhaling the sound material, pipeline sound-absorbing structure still includes the third amortization layer, the third amortization layer is the metal material, the third amortization layer sets up the periphery on second amortization layer, the third amortization layer is more than two and follows pipeline sound-absorbing structure's radial direction overlaps in proper order and establishes.
Furthermore, the first noise reduction layer with all be provided with amortization through-hole on the third noise reduction layer, and adjacent two contact or adjacent two between the third noise reduction layer set up between the third noise reduction layer and inhale the sound cotton or inhale the sound coating.
The invention provides a silencing pipeline which comprises a pipe body and a pipeline silencing structure, wherein the pipe body is wrapped by the pipeline silencing structure.
The invention provides a compressor unit, wherein the pipeline silencing structure is arranged in part or all of the exhaust pipeline and part or all of the section of the suction pipeline of the compressor unit.
The invention has the following technical effects:
the pipeline silencing structure provided by the invention is of a cylindrical structure, the pipeline silencing structure is wrapped on the outer side of a pipeline to be silenced, the pipeline silencing structure comprises a first silencing layer and a second silencing layer, the second silencing layer is arranged on the outer circumferential side surface of the first silencing layer, and the first silencing layer and the second silencing layer are both made of metal materials; or one of the first silencing layer and the second silencing layer is made of sound-absorbing materials, and the other one of the first silencing layer and the second silencing layer is made of metal materials. The pipeline silencing structure provided by the invention is simple in structure and wraps the outer side of the pipeline needing silencing, so that the problems that the pipeline resistance and the economic performance are increased when a silencer is installed in the pipeline are avoided, in addition, the first silencing layer and the second silencing layer are both made of metal materials or one of the first silencing layer and the second silencing layer is made of metal materials, and thus the defect that the noise reduction is poor due to high-temperature denaturation caused by only adopting silencing cotton can be effectively avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a pipe silencing structure provided in example 1 of the present invention;
FIG. 2 is a schematic structural diagram of a pipe silencing structure provided in example 4 of the present invention;
fig. 3 is a schematic cross-sectional view of the pipe silencing structure of fig. 2.
Figure 1-first sound damping layer; 2-a second sound-damping layer; 3-a silencing through hole; 4-sound absorbing cotton or a sound absorbing coating; 5-a pipe body; 6-inner silencing layer; 7-damping layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1:
the invention provides a pipeline silencing structure, which is of a cylindrical structure, the pipeline silencing structure is wrapped on the outer side of a pipeline to be silenced, and comprises a first silencing layer 1 and a second silencing layer 2, wherein the second silencing layer 2 is arranged on the outer circumferential side surface of the first silencing layer 1, and the first silencing layer 1 and the second silencing layer 2 are both made of metal materials. When the pipeline silencing structure provided by the invention is used, if noise is generated in the pipeline, part of sound waves are repeatedly refracted between the pipeline and the first silencing layer 1 and between the first silencing layer 1 and the second silencing layer 2 to cause energy consumption, so that the noise is reduced, and the silencing effect is further achieved.
The pipeline silencing structure provided by the invention has a simple structure and is wrapped on the outer side of a pipeline needing silencing, so that the problems of pipeline resistance and economic performance increase caused by installing a silencer in the pipeline are solved; in addition, first noise damping layer 1 and second noise damping layer 2 are the metal material, like this, can effectively avoid only adopting the cotton drawback that leads to falling the very poor of making an uproar because of the high temperature denaturation of amortization.
Preferably, a sound absorbing cotton or a sound absorbing coating 4 is disposed between the first sound absorbing layer 1 and the second sound absorbing layer 2. Through set up between first noise damping layer 1 and second noise damping layer 2 and inhale sound cotton or inhale sound coating 4, the sound wave part through the amortization through-hole 3 of first noise damping layer 1 can be inhaled the sound cotton or inhale sound coating 4 and absorb to reach the effect that further reaches noise reduction.
Regarding the thickness of the sound absorption coating or the sound absorption cotton, the sound absorption coating or the sound absorption cotton mainly utilizes sound wave diffraction and refraction to reduce noise, and the thickness of the sound absorption coating or the sound absorption cotton depends on the load bearing and cost considerations of the pipeline. Preferably, sound-absorbing cotton with the thickness of 5mm to 10mm is arranged between the second sound-absorbing layer 2 and the second sound-absorbing layer 2, or a sound-absorbing coating with the thickness of 1mm to 3mm is arranged between the second sound-absorbing layer 2 and the second sound-absorbing layer 2.
Preferably, the first silencing layer 1 and the second silencing layer 2 are uniformly distributed with silencing through holes 3, the first silencing layer 1 and the second silencing layer 2 are provided with the silencing through holes 3, so that the pipeline silencing structure is convenient to process, and at the moment, the first silencing layer 1 and the second silencing layer 2 can adopt galvanized steel plates. Of course, the sound-deadening through-holes 3 may not be provided in the first sound-deadening layer 1 and the second sound-deadening layer 2, and in this case, the first sound-deadening layer 1 and the second sound-deadening layer 2 are preferably made of an aluminum alloy light material.
Further, the diameter of the silencing through hole 3 on the second silencing layer 2 is not larger than that of the silencing through hole 3 on the first silencing layer 1. Since the larger the diameter of the sound deadening through-hole 3 is, the more easily the sound wave comes out. Therefore, in order to achieve a better noise reduction effect, it is preferable that the diameter of the sound-deadening through-hole 3 in the second sound-deadening layer 2 is smaller than the diameter of the sound-deadening through-hole 3 in the first sound-deadening layer 1.
Further, the silencing through hole 3 is of a circular hole structure or a narrow slit structure.
When the silencing through hole 3 is a circular hole structure, the diameter of the silencing through hole 3 on the first silencing layer 1 is preferably as follows: diameter D of silencing through hole 3 on first silencing layer 1 1 The range of (a) is 3 mm-8 mm; the distance between two adjacent silencing through holes 3 on the first silencing layer 1 is 2D 1 ～4.5D 1 。
The diameter of the sound-absorbing through-hole 3 in the second sound-absorbing layer 2 is preferably as follows: diameter D of silencing through hole 3 on second silencing layer 2 2 In the range of 0.15D 1 mm～0.35D 1 mm, wherein D 1 The diameter of the silencing through hole 3 on the first silencing layer 1; the distance between two adjacent silencing through holes 3 on the second silencing layer 2 is 2D 1 ～4.5D 1 。
The thicknesses of the first sound-deadening layer 1 and the second sound-deadening layer 2 are preferably as follows: the thickness of the first silencing layer 1 is 0.15 mm-0.75 mm; the thickness of the second sound-deadening layer 2 is 0.15mm to 0.75mm.
The invention provides a pipeline silencing structure, which comprises the following manufacturing processes: the method comprises the steps of selecting a galvanized steel plate with the thickness of 0.15-0.75 mm, processing a silencing through hole on the plate (for manufacturing a first silencing layer 1), selecting a galvanized steel plate with the thickness of 0.15-0.75 mm, processing a silencing through hole on the plate (for manufacturing a second silencing layer 2), arranging soundproof cotton between the two steel plates or coating sound-absorbing materials on the two steel plates, bending the two steel plates together into a round pipe, and connecting seams by using rivet connecting sheets or by using spot welding.
Furtherly, amortization through-hole 3 on the first amortization layer 1 and the amortization through-hole 3 dislocation set on the second amortization layer 2 avoid directly transmitting through the sound wave of amortization through-hole 3 on the first amortization layer 1 on the second amortization layer 2, through dislocation set so that reach better noise cancelling effect.
Preferably, the pipe silencing structure further comprises an inner silencing layer 6, the inner silencing layer 6 is arranged on the inner side surface of the first silencing layer 1, and the inner silencing layer 6 is a sound absorbing coating. By arranging the inner silencing layer 6, better silencing effect can be further achieved.
A silencing pipeline comprises a pipe body 5 and a pipeline silencing structure provided by the invention, wherein the pipe body 5 is wrapped by the pipeline silencing structure.
A compressor unit, a pipeline silencing structure arranged on part or all of the region of the exhaust pipeline of the compressor unit and part or all of the section of the suction pipeline of the compressor unit. For example, the noise reduction structure can be wrapped at the air inlet section of the air suction pipeline of the compressor unit, the air outlet section of the air exhaust pipeline of the compressor unit, the turning of the air suction pipeline and the air exhaust pipeline and other places which are easy to generate noise.
Example 2:
the difference from example 1 is: the silencing through holes 3 on the first silencing layer 1 are distributed in a mode of large and small holes at intervals; and/or the sound-deadening through holes 3 on the second sound-deadening layer 2 are distributed in a mode of large and small holes at intervals. Preferably, the silencing through holes 3 on the first silencing layer 1 are distributed in a mode of large and small holes at intervals, and the silencing through holes 3 on the second silencing layer 2 are distributed in a mode of large and small holes at intervals. In addition, for the special compressor with the squealing noise, the size of the silencing through hole 3 can be set according to the main noise frequency of the squealing noise.
Example 3:
in contrast to example 1 or example 2: the first silencing layer 1 is provided with first grooves, the first grooves extend along the direction parallel to the axis of the first silencing layer 1, and a plurality of first grooves are distributed at intervals along the circumferential direction of the first silencing layer 1; and/or second grooves are formed in the second sound-deadening layer 2, the second grooves extend in a direction parallel to the axis of the second sound-deadening layer 2, and a plurality of the second grooves are distributed at intervals in the circumferential direction of the second sound-deadening layer 2.
For example, when the first groove is formed on the first sound-deadening layer 1 (the groove is not formed on the second sound-deadening layer 2), the sound wave passing through the first sound-deadening layer 1 enters the first groove, and the sound wave can be repeatedly refracted in the first groove to realize energy dissipation.
Example 4:
the difference from example 1 is: be provided with damping layer 7 between first noise damping layer 1 and the second noise damping layer 2, be formed with the damping recess on the damping layer 7, the damping recess extends along the direction that is on a parallel with first noise damping layer 1 axis, and a plurality of damping recesses are along the circumferential direction interval distribution of damping layer 7.
The sound waves passing through the first sound-absorbing layer 1 and the damping layer 7 enter the damping grooves, and can be repeatedly refracted in the damping grooves to realize energy dissipation.
When the silencing through hole 3 is arranged on the second silencing layer 2, the silencing through hole 3 on the second silencing layer 2 and the damping groove of the damping layer 7 are preferably arranged in a staggered mode, and sound waves in the damping groove are prevented from directly penetrating out.
Example 5:
the invention provides a pipeline silencing structure, which is of a cylindrical structure, the pipeline silencing structure is wrapped on the outer side of a pipeline to be silenced, and comprises a first silencing layer 1 and a second silencing layer 2, wherein the second silencing layer 2 is arranged on the outer circumferential side surface of the first silencing layer 1, silencing through holes 3 are distributed in the first silencing layer 1 and are made of metal materials, and the second silencing layer 2 is made of sound-absorbing materials. The second sound-deadening layer 2 may be sound-deadening cotton or a sound-deadening coating layer provided on the outer layer of the first sound-deadening layer 1. Compared with the mode that the silencing cotton is arranged on the outer side of the pipeline, the pipeline silencing structure provided by the invention can achieve a better silencing effect; compared with the silencer arranged in the pipeline, the pipeline silencer can save cost and has economical efficiency.
A silencing pipeline comprises a pipe body 5 and a pipeline silencing structure provided by the invention, wherein the pipe body 5 is wrapped by the pipeline silencing structure.
A compressor unit, a pipeline silencing structure arranged on part or all of the region of the exhaust pipeline of the compressor unit and part or all of the section of the suction pipeline of the compressor unit. For example, the noise reduction structure can be wrapped at the air inlet section of the air suction pipeline of the compressor unit, the air outlet section of the air exhaust pipeline of the compressor unit, the turning of the air suction pipeline and the air exhaust pipeline and other places which are easy to generate noise.
Example 6:
the invention provides a pipeline silencing structure, which is of a cylindrical structure, the pipeline silencing structure is wrapped on the outer side of a pipeline needing silencing, and comprises a first silencing layer 1 and a second silencing layer 2, wherein the second silencing layer 2 is arranged on the peripheral side surface of the first silencing layer 1, silencing through holes 3 are distributed in the first silencing layer 1 and are made of metal materials, and the second silencing layer 2 is made of sound absorbing materials. The second sound-deadening layer 2 may be a sound-absorbing cotton or a sound-absorbing coating layer disposed on the outer layer of the first sound-deadening layer 1.
The pipeline sound-absorbing structure further comprises a third sound-absorbing layer, the third sound-absorbing layer is arranged on the periphery of the second sound-absorbing layer 2, sound-absorbing through holes are distributed in the third sound-absorbing layer and made of metal materials, the third sound-absorbing layer is formed by sleeving more than two third sound-absorbing layers in sequence along the radial direction of the pipeline sound-absorbing structure, and sound-absorbing cotton or sound-absorbing coatings are arranged between two adjacent third sound-absorbing layers or between two adjacent third sound-absorbing layers.
The diameter of the silencing through hole on the third silencing layer is not more than that of the silencing through hole on the first silencing layer 1; for each third sound-deadening layer, the diameter of the sound-deadening through-holes of the third sound-deadening layer disposed on the inner layer is not larger than the diameter of the sound-deadening through-holes of the third sound-deadening layer disposed on the outer side.
A silencing pipeline comprises a pipe body 5 and a pipeline silencing structure provided by the invention, wherein the pipe body 5 is wrapped by the pipeline silencing structure.
A compressor unit, a pipeline silencing structure arranged on part or all of the region of the exhaust pipeline of the compressor unit and part or all of the section of the suction pipeline of the compressor unit. For example, the noise reduction structure can be wrapped at the air inlet section of the air suction pipeline of the compressor unit, the air outlet section of the air exhaust pipeline of the compressor unit, the turning of the air suction pipeline and the air exhaust pipeline and other places which are easy to generate noise.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (19)
1. A pipe silencing structure, characterized in that it is a cylindrical structure comprising a first silencing layer (1) and a second silencing layer (2), wherein,
the second silencing layer (2) is arranged on the outer circumferential side face of the first silencing layer (1), and the first silencing layer (1) and the second silencing layer (2) are both made of metal materials; or one of the first sound-absorbing layer (1) and the second sound-absorbing layer (2) is made of sound-absorbing material, and the other is made of metal material.
2. The pipe silencing structure of claim 1, wherein said first silencing layer (1) and said second silencing layer (2) are both of metal material and have silencing through holes (3) distributed thereon.
3. Pipe silencing structure according to claim 2, characterized in that the diameter of the silencing through holes (3) in the second silencing layer (2) is not greater than the diameter of the silencing through holes (3) in the first silencing layer (1).
4. The pipe silencing structure of claim 2, wherein the silencing through holes (3) on the first silencing layer (1) are distributed in a way that large and small holes are distributed at intervals; and/or the silencing through holes (3) on the second silencing layer (2) are distributed in a mode of large and small holes at intervals.
5. The pipe silencing structure of claim 2, wherein the silencing through holes (3) of the second silencing layer (2) are offset from the silencing through holes (3) of the first silencing layer (1).
6. The conduit of claim 2Silencing structure, characterized in that the diameter D of the silencing through hole (3) on the first silencing layer (1) 1 The range of (a) is 3 mm-8 mm; the distance between two adjacent silencing through holes (3) on the first silencing layer (1) is 2D 1 ～4.5D 1 。
7. Pipe sound-attenuating structure as claimed in claim 2, characterized in that the diameter D of the sound-attenuating through-hole (3) in the second sound-attenuating layer (2) 2 In the range of 0.15D 1 mm～0.35D 1 mm, wherein D 1 The diameter of the silencing through hole (3) on the first silencing layer (1); the distance between two adjacent silencing through holes (3) on the second silencing layer (2) is 2D 1 ～4.5D 1 。
8. The pipe silencing structure of claim 2, wherein the thickness of said first silencing layer (1) is 0.15mm to 0.75mm; the thickness of the second sound-deadening layer (2) is 0.15 mm-0.75 mm.
9. The pipe silencing structure of claim 2, wherein said silencing through hole (3) is of a circular hole structure or a slit structure.
10. The pipe silencing structure according to any one of claims 1 to 9, wherein a damping layer (7) is provided between said first silencing layer (1) and said second silencing layer (2), said damping layer (7) having damping grooves formed thereon, said damping grooves extending in a direction parallel to the axis of said first silencing layer (1), a plurality of said damping grooves being spaced apart in the circumferential direction of said damping layer (7).
11. The pipe silencing structure according to any one of claims 1 to 9, wherein said first silencing layer (1) is formed with first grooves extending in a direction parallel to the axis of said first silencing layer (1), a plurality of said first grooves being spaced apart in the circumferential direction of said first silencing layer (1); and/or second grooves are formed in the second sound-absorbing layer (2), extend along the direction parallel to the axis of the second sound-absorbing layer (2), and are distributed at intervals along the circumferential direction of the second sound-absorbing layer (2).
12. Pipe sound-attenuating structure as claimed in any one of claims 1 to 9, characterized in that between the first sound-attenuating layer (1) and the second sound-attenuating layer (2) there is arranged sound-absorbing cotton or a sound-absorbing coating (4).
13. The pipe silencing structure of claim 12, wherein a sound absorbing cotton having a thickness of 5mm to 10mm is provided between the second sound absorbing layer (2) and the second sound absorbing layer (2) or a sound absorbing coating having a thickness of 1mm to 3mm is provided between the second sound absorbing layer (2) and the second sound absorbing layer (2).
14. The pipe silencing structure of any one of claims 1 to 9, further comprising an inner silencing layer (6), said inner silencing layer (6) being disposed on an inner side of said first silencing layer (1), said inner silencing layer (6) being a sound absorbing coating.
15. The pipe sound-deadening structure according to any one of claims 1 to 9, wherein the first sound-deadening layer (1) and the second sound-deadening layer (2) are both made of a galvanized steel sheet or both are made of an aluminum alloy.
16. The pipe silencing structure of claim 1, wherein the second silencing layer (2) is made of sound-absorbing material, the pipe silencing structure further comprises a third silencing layer made of metal, the third silencing layer is arranged on the periphery of the second silencing layer (2), and the third silencing layer is more than two and is sequentially sleeved along the radial direction of the pipe silencing structure.
17. The pipe silencing structure of claim 16, wherein the first silencing layer (1) and the third silencing layer are both provided with silencing through holes (3), and two adjacent third silencing layers are in contact with each other or a sound absorbing cotton or a sound absorbing coating is arranged between two adjacent third silencing layers.
18. A muffling pipe comprising a pipe body and the pipe muffling structure of any one of claims 1-17, wherein the pipe muffling structure encases the pipe body.
19. A compressor assembly, characterized in that part or all of the area of the compressor assembly discharge line and part or all of the section of the compressor assembly suction line is provided with a tube silencing structure according to any one of claims 1-17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211492598.1A CN115789386A (en) | 2022-11-25 | 2022-11-25 | Pipeline amortization structure, amortization pipeline and compressor unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211492598.1A CN115789386A (en) | 2022-11-25 | 2022-11-25 | Pipeline amortization structure, amortization pipeline and compressor unit |
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| Publication Number | Publication Date |
|---|---|
| CN115789386A true CN115789386A (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211492598.1A Pending CN115789386A (en) | 2022-11-25 | 2022-11-25 | Pipeline amortization structure, amortization pipeline and compressor unit |
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| Country | Link |
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| CN (1) | CN115789386A (en) |
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- 2022-11-25 CN CN202211492598.1A patent/CN115789386A/en active Pending
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