CN220286068U - Air inlet silencing system of centrifugal compressor - Google Patents
Air inlet silencing system of centrifugal compressor Download PDFInfo
- Publication number
- CN220286068U CN220286068U CN202322027897.4U CN202322027897U CN220286068U CN 220286068 U CN220286068 U CN 220286068U CN 202322027897 U CN202322027897 U CN 202322027897U CN 220286068 U CN220286068 U CN 220286068U
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- air inlet
- edge
- silencer
- centrifugal compressor
- cuboid structure
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- 230000030279 gene silencing Effects 0.000 title claims abstract description 21
- 230000003584 silencer Effects 0.000 claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 239000011358 absorbing material Substances 0.000 claims abstract description 12
- 229920000742 Cotton Polymers 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 7
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001743 silencing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Abstract
The utility model provides an intake silencing system of a centrifugal compressor, which comprises: an air inlet guide blade, a primary filter cotton, a middle-effect filter, an air inlet sound-eliminating box, an air inlet of a main machine of the centrifugal machine and an air inlet silencer; the shell of the air intake silencer is of a first cuboid structure, and the first upper surface and the first lower surface of the shell are both first mesh plates; the first left side surface and the first right side surface of the shell are both second mesh plates; the first front surface of the shell is a steel plate frame, and the steel plate frame comprises at least one window; the interior of the air inlet silencer comprises a hollow second cuboid structure; the second cuboid structure has a smaller size than the first cuboid structure. The air inlet silencing system of the centrifugal compressor can utilize the impedance composite silencing principle, apply a mesh plate and change the air inlet section to reduce noise; and the sound waves are fully contacted with the sound absorbing material, and the damping friction of the overlapped small holes reduces the noise of medium and high frequencies.
Description
Technical Field
The utility model relates to the field of noise reduction, in particular to an air inlet noise reduction system of a centrifugal compressor.
Background
Since the compressor is started and operated, the generated high-frequency sharp noise seriously affects the office environment of a factory, for example, the average sound pressure level noise on the surface of the high-speed centrifugal compressor is about 110 dB. The inlet of the compressor is directly connected with the atmosphere, and the air inlet noise is higher than that of other sound sources, so that the compressor noise is controlled, and the air inlet noise is mainly reduced.
In the prior art, the method for reducing the air inlet noise of the compressor mainly adopts an air inlet silencing box, and usually, only simple silencing measures are adopted in the air inlet silencing box, so that the effect is not ideal.
Therefore, how to improve the silencing effect of the air intake silencing box is a problem to be solved urgently.
Disclosure of Invention
In view of the above drawbacks of the prior art and limited application range, the present utility model is directed to providing an air intake silencing system of a centrifugal compressor, which is used for solving the problem that the silencing effect of an air intake silencing box cannot be improved in the prior art.
To achieve the above and other related objects, the present utility model provides an intake silencing system of a centrifugal compressor, comprising: an air inlet guide blade, a primary filter cotton, a middle-effect filter, an air inlet sound-eliminating box, an air inlet of a main machine of the centrifugal machine and an air inlet silencer; the shell of the air intake silencer is of a first cuboid structure, and the first upper surface and the first lower surface of the shell are both first mesh plates; the first left side surface and the first right side surface of the shell are both second mesh plates; the first front surface of the shell is a steel plate frame, and the steel plate frame comprises at least one window; the first rear surface of the shell is a solid steel plate, and the outer surface of the solid steel plate is a third mesh plate; the interior of the air inlet silencer comprises a hollow second cuboid structure; the second cuboid structure has a smaller size than the first cuboid structure; the second upper surface and the second lower surface of the second cuboid structure are both fourth mesh plates; the second left side surface and the second right side surface of the second cuboid structure are both fifth mesh plates; the second rear surface of the second cuboid structure is a sixth mesh plate; the second front surface of the second cuboid structure is hollow.
In an embodiment of the utility model, the second upper surface includes a first edge, and the first edge is an intersection edge of the second upper surface and the second rear surface; the second lower surface comprises a second edge, and the second edge is an intersection edge of the second lower surface and the second rear surface; the first upper surface comprises a third edge, and the third edge is an intersection edge of the first upper surface and the first rear surface; the first lower surface comprises a fourth side which is an intersection edge of the first lower surface and the first rear surface; the other joint edges of the second upper surface except the first edge are correspondingly connected with the other joint edges of the first upper surface except the third edge through steel panels; the other joint edges of the second lower surface except the second edge are correspondingly connected with the other joint edges of the first lower surface except the fourth edge through the steel panel.
In one embodiment of the present utility model, the second front surface includes a first left side edge and a first right side edge; the first front surface includes a second left side edge and a second right side edge; the first left side edge and the second left side edge are connected through a steel panel; the first right side edge and the second right side edge are connected through a steel panel.
In an embodiment of the present utility model, the outer sides of the first mesh plate, the second mesh plate, the third mesh plate, the fourth mesh plate, the fifth mesh plate and the sixth mesh plate are all wrapped with sound absorbing materials; the solid steel plate and the steel panel are both of double-layer structures, and the middle interlayer is filled with sound absorption materials.
In one embodiment of the present utility model, there are 2 air intake silencers, including: the first air inlet silencer and the second air inlet silencer are arranged in the air inlet silencing box; the size of the air inlet silencer is determined based on the air inflow of the compressor; the size of the air inlet sound-eliminating box is larger than that of the air inlet silencer; the air inlet sound-eliminating box comprises a third front surface and a third rear surface; the front surface of the first air intake silencer is flush with the third front surface; the front surface and the third rear surface of the second intake silencer are flush.
In an embodiment of the present utility model, the air intake guide vane plate includes: a shutter, a frame, and a spring pin; the medium-efficiency filter and the initial-efficiency filter cotton are sequentially placed on a steel plate frame, an air inlet door plate is arranged outside the steel plate frame and used for fixing an air inlet guide blade plate through a spring pin.
In an embodiment of the utility model, an air inlet of the centrifuge main unit is arranged at the side surface of the air inlet sound-eliminating box and is used for being connected with the centrifugal compressor to guide noise generated by the centrifugal compressor to enter the air inlet sound-eliminating box.
As described above, the utility model provides an intake silencing system of a centrifugal compressor, which has the following beneficial effects:
(1) The noise reduction principle of impedance combination is utilized, a mesh plate is applied, and the air inlet section is changed to reduce noise;
(2) And the sound waves are fully contacted with the sound absorbing material, and the damping friction of the overlapped small holes reduces the noise of medium and high frequencies.
Drawings
Fig. 1 is a schematic diagram of an intake silencer system for a centrifugal compressor according to an embodiment of the present utility model.
Fig. 2 is a schematic view of an intake silencer of a centrifugal compressor according to an embodiment of the present utility model.
FIG. 3 is a system cross-sectional view of a centrifugal compressor inlet muffler system according to one embodiment of the utility model.
Description of element reference numerals
1. Air inlet guide vane
11. Shutter blade
12. Frame
13. Spring pin
2. Primary filter cotton
3. Medium-efficiency filter
4. Air inlet sound-eliminating box
5. Air inlet of main machine of centrifugal machine
6. Air intake silencer
61. First mesh plate
62. Second mesh plate
63. Steel plate frame
64. Third mesh plate
65. Fourth mesh plate
66. Fifth mesh plate
67. Sixth mesh plate
68. First air intake silencer
69. Second air intake silencer
70. Air inlet door plate
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
According to the air inlet silencing system of the centrifugal compressor, provided by the utility model, the noise can be reduced by utilizing the impedance composite silencing principle and applying the mesh plate and changing the air inlet section; and the sound waves are fully contacted with the sound absorbing material, and the damping friction of the overlapped small holes reduces the noise of medium and high frequencies.
As shown in fig. 1, in one embodiment, the intake silencer system of the centrifugal compressor of the present utility model includes: an air inlet guide blade plate 1, primary filter cotton 2, a middle-effect filter 3, an air inlet sound-eliminating box 4, an air inlet 5 of a main machine of the centrifugal machine and an air inlet silencer 6.
Specifically, as shown in fig. 2, in the embodiment, the air intake silencer of the present utility model has a schematic structure, the housing of the air intake silencer 6 has a first cuboid structure, and the first upper surface and the first lower surface of the housing are both the first mesh plate 61; the first left side and the first right side of the housing are both second mesh panels 62; the first front surface of the housing is a steel plate frame 63, and the steel plate frame 63 comprises at least one window; the first rear surface of the housing is a solid steel plate, and the outer surface of the solid steel plate is a third mesh plate 64; the interior of the air intake silencer 6 comprises a hollow second cuboid structure; the second cuboid structure has a smaller size than the first cuboid structure; the second upper surface and the second lower surface of the second cuboid structure are both fourth mesh plates 65; the second left side surface and the second right side surface of the second cuboid structure are both fifth mesh plates 66; the second rear surface of the second cuboid structure is a sixth mesh plate 67; the second front surface of the second cuboid structure is hollow.
Further specifically, the second upper surface includes a first edge, the first edge being an intersection of the second upper surface and the second rear surface; the second lower surface comprises a second edge, and the second edge is an intersection edge of the second lower surface and the second rear surface; the first upper surface comprises a third edge, and the third edge is an intersection edge of the first upper surface and the first rear surface; the first lower surface comprises a fourth side which is an intersection edge of the first lower surface and the first rear surface; the other joint edges of the second upper surface except the first edge are correspondingly connected with the other joint edges of the first upper surface except the third edge through steel panels; the other joint edges of the second lower surface except the second edge are correspondingly connected with the other joint edges of the first lower surface except the fourth edge through the steel panel.
Further specifically, the second front surface includes a first left side edge and a first right side edge; the first front surface includes a second left side edge and a second right side edge; the first left side edge and the second left side edge are connected through a steel panel; the first right side edge and the second right side edge are connected through a steel panel.
Further specifically, the outsides of the first mesh plate 61, the second mesh plate 62, the third mesh plate 64, the fourth mesh plate 65, the fifth mesh plate 66 and the sixth mesh plate 67 are all wrapped with sound absorbing materials; the solid steel plate and the steel panel are both of double-layer structures, and the middle interlayer is filled with sound absorption materials.
More specifically, as shown in fig. 3, in the present embodiment, the system of the present utility model has 2 intake silencers 6, including: a first air intake silencer 68 and a second air intake silencer 69, the air intake silencer 6 is arranged in the air intake silencing box 4; the size of the intake silencer 6 is determined based on the intake air amount of the compressor; the size of the air inlet sound-reducing box 4 is larger than that of the air inlet silencer 6; the air intake whistle box 4 comprises a third front surface and a third rear surface; the front surface of the first intake silencer 68 is flush with the third front surface; the front surface and the third rear surface of the second intake silencer 69 are flush.
Further specifically, the intake guide vane plate 1 includes: a shutter 11, a frame 12, a spring pin 13; the medium-efficiency filter 3 and the initial-efficiency filter cotton 2 are sequentially placed on a steel plate frame 63, an air inlet door plate 70 is arranged outside the steel plate frame 63, and the air inlet door plate 70 is used for fixing the air inlet guide blade plate 1 through a spring pin 13.
Further specifically, the air inlet 5 of the main body of the centrifugal machine is arranged on the side surface of the air inlet sound-eliminating box 4 and is used for being connected with the centrifugal compressor to guide noise generated by the centrifugal compressor to enter the air inlet sound-eliminating box 4.
Principle of operation
When the air intake noise of the compressor enters the air intake silencing box 4 through the air inlet 5 of the main machine of the centrifugal machine, the sound absorbing material absorbs a part of the noise when encountering the third mesh plate 64, and the noise enters from the first upper surface and the first lower surface of the air intake silencer 6 respectively due to the blocking of the solid steel plate on the first rear surface of the air intake silencer 6, and the noise is reduced due to the effect of the sound absorbing material on the surface layer; the second cuboid which is formed by the hollow mesh plates and is wrapped with the sound absorbing material is encountered, so that noise is reduced due to the effect of the sound absorbing material; on the other hand, the noise reduction effect is also caused by the structural change, and the noise reduction effect is obvious when the noise flows out from the air inlet noise reduction box 4 through the medium-effect filter 3, the primary filter cotton 2 and the air inlet silencer 6 at the two ends in the air inlet noise reduction box 4 which are sequentially arranged on the steel plate frame 63.
In summary, the air inlet silencing system of the centrifugal compressor can utilize the impedance composite silencing principle, apply a mesh plate and change the air inlet section to reduce noise; and can fully contact sound wave with the sound absorbing material, and the damping friction of the overlapped small holes reduces the noise of medium and high frequency. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. A centrifugal compressor inlet muffler system, the centrifugal compressor inlet muffler system comprising: air inlet guide blade, just imitate filter cotton, well effect filter, air inlet whistle box, centrifuge host computer air intake, its characterized in that includes: an air intake silencer;
the shell of the air inlet silencer is of a first cuboid structure, and the first upper surface and the first lower surface of the shell are both first mesh plates; the first left side surface and the first right side surface of the shell are both second mesh plates;
the first front surface of the shell is a steel plate frame, and the steel plate frame comprises at least one window; the first rear surface of the shell is a solid steel plate, and the outer surface of the solid steel plate is a third mesh plate;
the interior of the air inlet silencer comprises a hollow second cuboid structure; the second cuboid structure has a smaller size than the first cuboid structure; the second upper surface and the second lower surface of the second cuboid structure are both fourth mesh plates; the second left side surface and the second right side surface of the second cuboid structure are both fifth mesh plates; the second rear surface of the second cuboid structure is a sixth mesh plate; the second front surface of the second cuboid structure is hollow.
2. The centrifugal compressor intake silencer system of claim 1, wherein the second upper surface includes a first edge, the first edge being an intersection of the second upper surface and the second rear surface;
the second lower surface includes a second edge, the second edge being the intersection of the second lower surface and the second rear surface;
the first upper surface includes a third edge, the third edge being the intersection edge of the first upper surface and the first rear surface;
the first lower surface includes a fourth side that is the intersection of the first lower surface and the first rear surface;
the other connecting edges of the second upper surface except the first edge are correspondingly connected with the other connecting edges of the first upper surface except the third edge through a steel panel;
the other connecting edges of the second lower surface except the second edge are correspondingly connected with the other connecting edges of the first lower surface except the fourth edge through the steel panel.
3. The centrifugal compressor intake silencer system of claim 2, wherein the second front surface includes a first left side edge and a first right side edge; the first front surface includes a second left side edge and a second right side edge;
the first left side edge and the second left side edge are connected through the steel panel; the first right side edge and the second right side edge are connected through the steel panel.
4. The centrifugal compressor intake silencer system of claim 3, wherein the outsides of the first mesh plate, the second mesh plate, the third mesh plate, the fourth mesh plate, the fifth mesh plate and the sixth mesh plate are all wrapped with sound absorbing materials;
the solid steel plate and the steel panel are of double-layer structures, and the middle interlayer is filled with the sound absorbing material.
5. The centrifugal compressor intake silencer system of claim 1, wherein there are 2 intake silencers comprising: the first air inlet silencer and the second air inlet silencer are arranged in the air inlet silencing box;
the size of the air inlet silencer is determined based on the air inflow of the compressor;
the size of the air inlet sound-eliminating box is larger than that of the air inlet silencer; the air inlet sound-eliminating box comprises a third front surface and a third rear surface; the front surface of the first intake silencer is flush with the third front surface; the front surface of the second intake silencer is flush with the third rear surface.
6. The centrifugal compressor inlet silencer system of claim 1, wherein the inlet guide vane plate includes: a shutter, a frame, and a spring pin;
the medium-efficiency filter and the initial-efficiency filter cotton are sequentially placed on the steel plate frame, an air inlet door plate is arranged outside the steel plate frame and used for fixing the air inlet guide blade plate through the spring pin.
7. The centrifugal compressor intake silencer system of claim 1, wherein the centrifuge main unit intake is disposed at a side of the intake silencer box and is used for connecting a centrifugal compressor, and guiding noise generated by the centrifugal compressor into the intake silencer box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322027897.4U CN220286068U (en) | 2023-07-29 | 2023-07-29 | Air inlet silencing system of centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322027897.4U CN220286068U (en) | 2023-07-29 | 2023-07-29 | Air inlet silencing system of centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220286068U true CN220286068U (en) | 2024-01-02 |
Family
ID=89329840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322027897.4U Active CN220286068U (en) | 2023-07-29 | 2023-07-29 | Air inlet silencing system of centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220286068U (en) |
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2023
- 2023-07-29 CN CN202322027897.4U patent/CN220286068U/en active Active
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