CN220705870U - Middle partition plate for noise reduction and exhaust buffer cavity - Google Patents
Middle partition plate for noise reduction and exhaust buffer cavity Download PDFInfo
- Publication number
- CN220705870U CN220705870U CN202322119896.2U CN202322119896U CN220705870U CN 220705870 U CN220705870 U CN 220705870U CN 202322119896 U CN202322119896 U CN 202322119896U CN 220705870 U CN220705870 U CN 220705870U
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- plate
- noise reduction
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- 238000005192 partition Methods 0.000 title claims abstract description 31
- 230000009467 reduction Effects 0.000 title claims abstract description 28
- 230000004323 axial length Effects 0.000 claims description 3
- 230000030279 gene silencing Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 244000062793 Sorghum vulgare Species 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019713 millet Nutrition 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a noise-reducing middle partition plate and an exhaust buffer cavity, wherein the middle partition plate comprises a plate body, at least one side of the plate body is provided with a plurality of protrusions, gaps are arranged among the protrusions, and the protrusions form a continuous wave crest and wave trough structure on the plate body; the plate body is also provided with at least one vent hole, and the vent holes are arranged at two sides of the length direction of the bulge; and the middle partition plate is arranged in the exhaust buffer cavity. The middle partition plate is provided with the bulges protruding outwards, so that a trough-crest structure can be formed between the bulges, and the aim of silencing and noise reduction can be achieved by utilizing reflection among the troughs.
Description
Technical Field
The utility model relates to the technical field of compressor exhaust silencing, in particular to a noise reduction middle partition plate and an exhaust buffer cavity.
Background
When the compressor is in operation, in the exhaust process, gas is exhausted from the cylinder, enters the exhaust buffer cavity through the air inlet end of the exhaust coil, then enters the lower cavity through the exhaust hole of the middle partition plate, and finally is exhausted out of the compressor through the air outlet end of the exhaust coil.
In general, only one baffle plate is arranged in the exhaust buffer cavity, and buffer silencing is carried out by utilizing two cavities; the gas enters the upper cavity to carry out primary silencing, then enters the lower cavity to carry out secondary silencing through throttling and noise reduction of the exhaust holes of the middle partition plate, and finally is discharged, and the whole process only carries out 3-stage silencing, so that the silencing and noise reduction effects are general.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a noise-reducing middle partition plate and an exhaust buffer cavity.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the noise-reducing middle partition plate comprises a plate body, wherein at least one side of the plate body is provided with a plurality of protrusions, gaps are arranged among the protrusions, and the protrusions form a continuous wave crest and wave trough structure on the plate body; the plate body is also provided with at least one vent hole, and the vent holes are arranged at two sides of the length direction of the bulge.
The middle partition plate is provided with the bulges protruding outwards, so that a trough-crest structure can be formed between the bulges, and the aim of silencing and noise reduction can be achieved by utilizing reflection among the troughs.
The middle partition plate does not need to change the original plate body structure, can be realized by only increasing a part of material cost, is easy to manufacture and use, and does not need to change the original installation mode of the middle partition plate. The structure has unchanged appearance, can achieve better noise reduction effect only by increasing the material cost of the protruding part, and can rapidly achieve the aim of exhausting and reducing noise through the technology under the condition of higher requirements on the noise of the compressor.
Further, the protrusions are triangular protrusions or trapezoidal protrusions.
Further, the protrusions are uniformly distributed in the middle area of the plate body at equal intervals.
Further, the plate body is a circular plate, the length of the protrusion is not shorter than the radius of the plate body, and at least one protrusion is located on a radial line of the plate body.
The bulges occupy most of the area of the plate body, are arranged in the middle as much as possible, are favorable for overall balance, are arranged in the exhaust buffer cavity, can ensure the mounting stability, and can also lead the bulges to be opposite to the air inlet direction.
Further, the average thickness of the protrusions is not smaller than the thickness of the plate body, the protrusions with certain thickness are thick, stability is good, disturbance or vibration caused when air flows can be avoided, and accordingly new noise is avoided.
Further, the gaps between the protrusions are gradually increased from the direction approaching to the plate body to the direction separating from the plate body.
Further, the protrusions are welded and fixed on the plate body, or the protrusions and the plate body are integrally formed through stamping.
Further, the outer surface of the bulge is provided with a sound absorption layer. The sound absorption layer is arranged, so that the silencing and noise reducing capabilities of the middle partition plate can be further improved.
An exhaust buffer cavity is provided with the noise-reducing middle partition board; the middle partition plate divides the exhaust buffer cavity into a first cavity and a second cavity, the first cavity is connected with an exhaust coil air inlet section, the second cavity is connected with an exhaust coil air outlet section, and the bulge is positioned in the first cavity and is opposite to the exhaust coil air inlet section.
Through setting up the middle baffle that has the arch in the exhaust buffer chamber, compare in original structure, can increase the progression of amortization, the air current gets into carry out the one-level amortization behind the first cavity, then the air current carries out the buffering reflection and forms the second grade amortization between the millet, then through the tertiary amortization of middle baffle air vent throttle noise reduction, reentrant the second cavity carries out the four-level amortization, finally discharges, and whole process at least process four-level amortization is better than current scheme amortization noise reduction effect.
Further, the protruding height of the protrusion is not less than 1/3 of the axial length of the first cavity, and the depth of the air inlet section of the exhaust coil extending into the first cavity is not greater than the depth of the air outlet section of the exhaust coil extending into the second cavity.
Compared with the prior art, the utility model has the beneficial effects that: 1. the middle partition plate is provided with the bulges protruding outwards on the surface, so that a trough-crest structure can be formed between the bulges, and the purposes of silencing and reducing noise can be achieved by utilizing reflection among the troughs; 2. the middle partition plate can be realized by only increasing a part of material cost without changing the original plate body structure, is easy to manufacture and use, does not need to change the original mounting mode of the middle partition plate, and can quickly achieve the aim of exhausting and reducing noise under the condition of higher requirements on the noise of the compressor; 3. through setting up the middle baffle that has the arch in the exhaust buffer chamber, compare in original structure, can increase the progression of amortization, the air current gets into carry out the one-level amortization behind the first cavity, then the air current carries out the buffering reflection and forms the second grade amortization between the millet, then through the tertiary amortization of middle baffle air vent throttle noise reduction, reentrant the second cavity carries out the four-level amortization, finally discharges, and whole process at least process four-level amortization is better than current scheme amortization noise reduction effect.
Drawings
FIG. 1 is a schematic view of a septum of the present utility model;
FIG. 2 is a schematic cross-sectional view of an exhaust buffer chamber with a noise reduction septum in accordance with the present utility model;
FIG. 3 is a schematic cross-sectional view of a vent buffer chamber with a noise reduction septum in accordance with the present utility model;
FIG. 4 is a schematic cross-sectional view of an exhaust buffer chamber with a noise reduction septum in accordance with the present utility model;
in the figure: 1. a plate body; 2. a protrusion; 3. a vent hole; 4. a first cavity; 5. a second cavity; 6. an exhaust coil air inlet section; 7. an exhaust coil air outlet section.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present utility model, are within the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the noise-reducing middle partition plate comprises a plate body 1, wherein at least one side of the plate body 1 is provided with a plurality of protrusions 2, gaps are arranged among the protrusions 2, and the protrusions 2 form a continuous wave crest and wave trough structure on the plate body 1; the plate body 1 is also provided with at least one vent hole 3, and the vent holes 3 are arranged at two sides of the length direction of the bulge 2.
This septum through set up outside convex protruding 2 at its surface, can be in form trough crest structure between protruding 2, can utilize the reflection between the trough, reach the amortization and fall the purpose of making an uproar.
The middle partition plate does not need to change the original plate body structure, can be realized by only increasing a part of material cost, is easy to manufacture and use, and does not need to change the original installation mode of the middle partition plate. The structure has unchanged appearance, can achieve better noise reduction effect only by increasing the material cost of the protruding part, and can rapidly achieve the aim of exhausting and reducing noise through the technology under the condition of higher requirements on the noise of the compressor.
Further, the protrusion 2 is a triangular protrusion or a trapezoidal protrusion.
The adoption triangle-shaped arch and trapezoidal arch can let clearance between the arch 2 has gradual change effect in the bulge direction, and the air current also can change gradually when flowing the reflection between the arch, is favorable to the gradual weakening of air current, promotes the amortization effect of making an uproar that falls.
Further, the protrusions 2 are uniformly distributed in the middle area of the plate body 1 at equal intervals.
The bulges 2 occupy most of the area of the plate body, are arranged in the middle as much as possible, are favorable for overall balance, are arranged in the exhaust buffer cavity, can ensure the installation stability, can also ensure that the bulges are opposite to the air inlet direction, and are convenient for air flow to quickly enter the trough structures.
Further, the plate body 1 is a circular plate, the length of the protrusions 2 is not shorter than the radius of the plate body, at least one protrusion 2 is located on a radial line of the plate body, and the arrangement can ensure that the number of the protrusions distributed in proportion is reasonable.
Further, the average thickness of the protrusions 2 is not smaller than the thickness of the plate body 1, the protrusions 2 with certain thickness are thick and firm, stability is good, and disturbance or vibration caused when air flows can be avoided, so that new noise is avoided.
Further, the gaps between the protrusions 2 are gradually increased from the direction approaching the plate body to the direction separating from the plate body.
Further, the protrusion 2 is welded and fixed on the plate body 1, or the protrusion 2 and the plate body 1 are integrally formed by stamping. The present intermediate separator can be mass-produced by either welding (fusing) or press molding.
In some embodiments, the outer surface of the protrusion 2 may be further provided with a sound absorbing layer. The sound-absorbing layer may be a sound-absorbing coating or a sound-absorbing material such as cotton or fiber coated outside the protrusions. The sound absorption layer is arranged, so that the silencing and noise reducing capabilities of the middle partition plate can be further improved.
As shown in fig. 2-4, the exhaust buffer cavity is provided with the noise-reducing middle partition board; the middle partition separates the exhaust buffer cavity into a first cavity 4 and a second cavity 5, the first cavity 4 is connected with an exhaust coil air inlet section 6, the second cavity 5 is connected with an exhaust coil air outlet section 7, and the bulge 2 is positioned in the first cavity 4 and is opposite to the exhaust coil air inlet section 6.
Through setting up the middle baffle that has protruding 2 in the exhaust buffer chamber, compare in original structure, can increase the progression of amortization, the air current gets into carry out one-level amortization behind the first cavity 4, then the air current is a plurality of buffer reflection forms the second grade amortization between protruding 2's the valley, then through the air vent 3 throttle noise reduction of middle baffle forms tertiary amortization, reentrant carry out the fourth grade amortization in the second cavity 5, finally discharge, whole process at least through the fourth grade amortization, it is better than current scheme amortization noise reduction effect.
The secondary noise reduction formed by the buffer reflection of the air flow between the valleys is a continuous process, and the air flow can be reduced in different degrees according to the number of the protrusions 2, the heights of the protrusions 2 and the surface areas of the protrusions 2.
Further, the protruding height of the protrusion 2 is not less than 1/3 of the axial length of the first cavity, the depth of the exhaust coil air inlet section 6 extending into the first cavity 4 is not greater than the depth of the exhaust coil air outlet section 7 extending into the second cavity 5, that is, a certain distance is also kept between the exhaust coil air inlet section 6 and the protrusion 2, and the cavity space of the first cavity is also utilized for noise reduction.
In some embodiments, the diameter of the middle partition board is about 23mm, five trapezoidal protrusions 2 are arranged on the middle partition board at equal intervals, the length of each protrusion 2 is about 13mm, the protruding height of each protrusion 2 is about 10mm, the width of the bottom of each protrusion 2 is 3mm, the width of the top of each protrusion 2 is 1mm, and the interval between the bottoms of adjacent protrusions 2 is 1mm; through the middle baffle plate with the size, the noise reduction effect is better after the middle baffle plate is arranged in the exhaust buffer cavity of the compressor.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The noise-reducing middle partition plate comprises a plate body and is characterized in that at least one side of the plate body is provided with a plurality of protrusions, gaps are arranged among the protrusions, and the protrusions form a continuous wave crest and wave trough structure on the plate body; the plate body is also provided with at least one vent hole, and the vent holes are arranged at two sides of the length direction of the bulge.
2. The noise reduction septum of claim 1 wherein the protrusion is a triangular protrusion or a trapezoidal protrusion.
3. The noise reduction septum of claim 1 wherein the protrusions are equally spaced evenly distributed in a central region of the plate body.
4. The noise reduction septum of claim 1 wherein the plate is a circular plate and the length of the protrusions is not shorter than the radius of the plate, at least one of the protrusions being located on a radial line of the plate.
5. The noise reduction septum of claim 1 wherein the average thickness of the protrusions is not less than the thickness of the plate body.
6. The noise reduction septum of claim 1 wherein the gaps between the protrusions are progressively larger from closer to the plate to farther from the plate.
7. The noise reduction septum of claim 1 wherein the boss is welded to the plate body or the boss and the plate body are a stamped integral piece.
8. The noise reduction septum of claim 1 wherein the outer surface of the protrusion is provided with a sound absorbing layer.
9. An exhaust buffer cavity, characterized in that the exhaust buffer cavity is internally provided with the noise-reducing middle partition plate according to any one of claims 1 to 8; the middle partition plate divides the exhaust buffer cavity into a first cavity and a second cavity, the first cavity is connected with an exhaust coil air inlet section, the second cavity is connected with an exhaust coil air outlet section, and the bulge is positioned in the first cavity and is opposite to the exhaust coil air inlet section.
10. The exhaust buffer chamber of claim 9, wherein the protrusion has a protrusion height not less than 1/3 of the axial length of the first chamber, the exhaust coil inlet section extending into the first chamber to a depth not greater than the exhaust coil outlet section extending into the second chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322119896.2U CN220705870U (en) | 2023-08-08 | 2023-08-08 | Middle partition plate for noise reduction and exhaust buffer cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322119896.2U CN220705870U (en) | 2023-08-08 | 2023-08-08 | Middle partition plate for noise reduction and exhaust buffer cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220705870U true CN220705870U (en) | 2024-04-02 |
Family
ID=90442727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322119896.2U Active CN220705870U (en) | 2023-08-08 | 2023-08-08 | Middle partition plate for noise reduction and exhaust buffer cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220705870U (en) |
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2023
- 2023-08-08 CN CN202322119896.2U patent/CN220705870U/en active Active
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