CN212081615U - Spherical array resistive noise elimination structure - Google Patents
Spherical array resistive noise elimination structure Download PDFInfo
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- CN212081615U CN212081615U CN202020416462.2U CN202020416462U CN212081615U CN 212081615 U CN212081615 U CN 212081615U CN 202020416462 U CN202020416462 U CN 202020416462U CN 212081615 U CN212081615 U CN 212081615U
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Abstract
The utility model discloses a spherical array resistive silencing structure, including spherical silencing body and silencing body array, spherical silencing body includes perforated plate, baffle and pipe preparation, the central trompil of circular baffle, penetrate the pipe in the baffle hole and fix, the pipe length of baffle both sides is the same, a pipe, a circular baffle and eight little baffles constitute the skeleton texture of spherical silencing body, fix the perforated plate on the skeleton surface, spherical silencing body comprises 8 resistive silencing units, the gradual change surface of spherical structure, the ventilation resistance has been reduced, aerodynamic performance is good, reduce power equipment energy consumption, have energy-conserving effect, spherical silencing body arrays in the silencing passageway with different arrangement modes, gradual change and the silencing passageway cross-section of alternate change have been formed, effectively restrain the high frequency inefficacy, resistive silencing has the characteristic of absorbing, high frequency broadband noise, the resistance silencing structure of the expansion chamber formed by the resistance silencing main body and the array improves the silencing efficiency and widens the silencing frequency band.
Description
Technical Field
The utility model relates to a noise cancelling structure specifically is a resistive noise cancelling structure of spherical array, is applicable to industrial and mining enterprises, central air conditioning system and has the ventilation noise elimination field that the noise elimination needs.
Background
The known industrial and mining enterprises, central air conditioning systems and the field of ventilation and noise elimination with noise elimination requirements often adopt single-channel, sheet type, honeycomb type, disc type and other noise elimination structures which are conventional noise elimination structures and have certain noise elimination effect, but have the defects of low noise elimination efficiency, high-frequency failure, poor aerodynamic performance, high energy consumption and the like, and are contrary to the concepts of environmental protection, energy conservation and emission reduction, so that a spherical array resistive noise elimination structure needs to be designed to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned noise-abatement structure's technical defect, provide a spherical array resistance nature noise-abatement structure, can effectively promote noise elimination efficiency, restrain the high frequency inefficacy, improve aerodynamic performance, have resistance noise elimination and energy-conserving effect concurrently, satisfy environmental protection, energy-conservation and emission reduction's requirement. The spherical array resistive noise elimination structure comprises the following specific technical scheme:
the utility model provides a spherical array resistive muffler structure, the spheroid diameter size is confirmed according to noise elimination passageway through flow area size, spherical muffler body includes perforated plate, baffle and pipe, the baffle is circular, circular baffle center trompil will the pipe penetrates in the hole of circular baffle center trompil and fix, the pipe length of circular baffle both sides is the same, adopts eight little baffles equipartition in circular baffle both sides and arrange with the circumference type array, little baffle includes long limit and minor face and circular arc limit, the long limit of little baffle is fixed on the pipe, the minor face is fixed on circular baffle, spherical muffler body skeleton texture includes a pipe, a piece of the circular baffle and eight little baffles, fixes the perforated plate on the surface of spherical muffler body skeleton texture, finally forms eight one eighth spherical cavity that the size is the same and the texture is the same, the spherical cavity is filled with sound absorption materials, the circular pipes protruding out of the spherical body part are buckled together by a fastener to form a spherical noise elimination body string, the number of the spherical noise elimination bodies is determined according to the size of noise elimination quantity, the spherical noise elimination bodies can be tightly connected in series or dispersedly connected in series at intervals of 1-3 diameters of the spherical noise elimination bodies, and a spherical array resistance noise elimination structure is formed by arranging a spherical array or a special-shaped (staggered) array in the spherical noise elimination string body in a noise elimination channel through a supporting member.
The utility model discloses a further improvement lies in: the diameter of the spherical noise elimination body is determined according to the flow area of the noise elimination channel, and the diameter of the spherical noise elimination body is larger than the diameter of the spherical noise elimination body.
The utility model discloses a further improvement lies in: the outer diameter D =10mm ~50mm of pipe, length L = D +100mm, circular baffle diameter H = D-2mm, the minor face of little baffle is the quarter of circular baffle.
The utility model discloses a further improvement lies in: the aperture of the central opening of the circular partition plate is phi = d +2 mm.
The utility model discloses a further improvement lies in: the partition plate, the round pipe and the perforated plate are all made of metal, glass fiber reinforced plastic, PVC and other materials with certain strength, the metal materials are welded or riveted, and the PVC materials are connected in a hot melting mode.
The utility model discloses a further improvement lies in: the thickness of the partition plate is 1-3 mm, the wall thickness of the circular tube is 3-5 mm, and the perforation rate of the perforated plate is 20-30%.
The utility model discloses a further improvement lies in: the round pipe of the convex sphere part is 50mm of convex sphere, and the round pipes with 50mm of convex sphere are buckled together by a fastener.
The utility model discloses a further improvement lies in: the sound absorption material comprises homogeneous materials such as porous alumina, foamed aluminum, foamed ceramic, foamed glass, foamed melamine and the like, or sound absorption materials such as centrifugal superfine glass wool, slag wool, wood fiber, polystyrene, polyurethane foam plastic, urea-formaldehyde foam plastic, phenolic foam plastic and the like which are wrapped by sound-transmitting glass fiber cloth, sound absorption felt or other sound-transmitting fabrics are filled.
The utility model has the advantages that:
in the technical field of noise control, two main noise elimination modes are provided: the utility model discloses a main part is a spherical resistance noise-elimination structure, the spherical structure array forms many expansion chambers in the noise elimination passageway, the expansion chamber is a resistance noise-elimination structure, the spherical resistance noise-elimination structure and the resistance noise-elimination structure of expansion chamber that the array is derived, all-round acoustic energy absorption, noise elimination efficiency has been promoted, the noise elimination frequency band has been widened, the slick and sly curved surface of spherical structure, can effectively reduce ventilation resistance, improve aerodynamic performance, reduce the power equipment energy consumption, reach energy-conserving purpose, sphere array or dysmorphism (dislocation) array, the noise elimination passageway of formation, through-flow cross-section gradual change and alternate variation, the direct penetration of high frequency sound in the passageway has been controlled, effectively restrain the high frequency inefficacy phenomenon.
The utility model discloses a be applied to noise control engineering reality with this utility model technical scheme, the result shows, compares with its similar noise-abatement structure, and average noise elimination volume increases about 10%, and resistance loss reduces about 3%, and is energy-conserving about 3%, and the high frequency inefficacy phenomenon effectively restraines.
Drawings
FIG. 1 is a schematic structural view of a spherical muffler body;
FIG. 2 is a schematic view of a circular partition plate;
FIG. 3 is a schematic structural view of the upper half of the spherical muffler body;
FIG. 4 is a schematic structural view of the lower half of the spherical muffler body;
FIG. 5 is a schematic view of the spherical muffling bodies being tightly connected in series;
FIG. 6 is a schematic view of discrete series connection of spherical muffling bodies;
FIG. 7 is a schematic view of a close-packed array of spheres in a muffling channel;
FIG. 8 is a schematic diagram of a dense arrangement of irregular arrays of spheres in a muffling channel;
FIG. 9 is a schematic view of a ball array in a muffling channel;
FIG. 10 is a schematic view of a spherical random array in a silencing channel.
Description of the drawings: 1-spherical noise elimination body, 2-noise elimination channel, 3-perforated plate, 4-clapboard, 5-round pipe, 6-central hole, 7-small clapboard, 8-round clapboard, 9-spherical cavity, 10-expansion chamber, and 11-sound absorption material.
Detailed Description
In order to make the technical field person understand the scheme of the present invention better, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical scheme in the embodiments of the present invention.
As shown in fig. 1 to 4, a spherical array resistive noise elimination structure, the diameter of a spherical noise elimination body 1 is determined according to the flow area of a noise elimination channel 2, the diameter D =100mm to 500mm of the spherical noise elimination body 1, the spherical noise elimination body 1 comprises a perforated plate 3, a partition plate 4 and a circular tube 5, the partition plate 4 is circular, the center of the circular partition plate 8 is provided with a central hole 6, the outer diameter D =10mm to 50mm of the circular tube 5 is larger than the length L = D +100mm, the diameter H = D-2mm of the circular partition plate 8 is larger than the diameter of the central hole of the circular partition plate 8 by phi D +2mm, the partition plate 4, the circular tube 5 and the perforated plate 6 are made of metal, glass fiber reinforced plastic, PVC and other materials with certain strength, the metal materials are welded or riveted, the PVC materials are connected by hot melting, the thickness of the partition plate 4 is 1 to 3mm, the wall thickness of the circular tube 5 is 3 to 5mm, the perforation rate of perforated plate 3 is 20% -30%, will the pipe 5 penetrates circular baffle 5 the hole of central trompil 6 is in and fixed, the both sides of circular baffle 8 the length of pipe 5 is the same, adopts eight little baffles 7 equipartitions to be in circular baffle 8's both sides and arrange with the circular array, little baffle 7 includes long limit and minor face and circular arc limit, the long limit of little baffle 7 is fixed on the pipe 5, the minor face is fixed on circular baffle 8, the minor face of little baffle 7 is the quarter of circular baffle 8, spherical noise elimination body skeleton texture includes one pipe 5, one circular baffle 8 and eight little baffle 7 will perforated plate 3 is fixed the surface of spherical noise elimination body skeleton texture finally forms eight one-eighth spherical cavities 9 that the size is the same and the structure is the same, the spherical cavity 9 is filled with a sound absorption material 11, the sound absorption material 11 comprises homogeneous materials such as porous alumina, foamed aluminum, foamed ceramic, foamed glass and foamed melamine, or is filled with sound-transmitting glass fiber cloth, sound absorption felt or centrifugal superfine glass wool wrapped by other sound-transmitting fabrics, slag wool, wood fiber, polystyrene, polyurethane foam plastic, urea-formaldehyde foam plastic, phenolic foam plastic and other sound absorption materials.
As shown in fig. 5 and 6, circular tubes 5 with 50mm of convex spheres are fastened together by fasteners to form a string of spherical muffling bodies, the number of the spherical muffling bodies is determined according to the muffling amount, and the spherical muffling bodies 1 can be closely connected in series or dispersedly connected in series at intervals of 1-3 diameter distances of the spherical muffling bodies 1.
As shown in fig. 7, 8, 9 and 10, an array of spheres or an irregular (staggered) array in the spherical silencing string body is arranged in the silencing channel 2 through a support member to form a spherical array resistive silencing structure in different forms.
The working principle is as follows: when noise is transmitted along the silencing channel 2, sound waves contact the spherical silencing body, sound energy is absorbed by the spherical silencing body 1, the silencing purpose is achieved, when airflow is transmitted along the silencing channel 2, the smooth curved surface of the spherical silencing body structure 1 can effectively reduce ventilation resistance, improve aerodynamic performance, reduce energy consumption of power equipment and achieve the energy-saving purpose, the expansion chamber 10 formed in the silencing channel 2 by a sphere array or a special-shaped (staggered) array has an additional resistance silencing effect and improves silencing efficiency, and the silencing channel 2 formed by the sphere array or the special-shaped (staggered) array has gradually-changed and alternatively-changed through-flow cross sections and effectively inhibits the high-frequency failure phenomenon.
The utility model has the advantages that:
in the technical field of noise control, two main noise elimination modes are provided: the utility model discloses a main part is a spherical resistance noise-elimination structure, the spherical structure array forms many expansion chambers in the noise elimination passageway, the expansion chamber is a resistance noise-elimination structure, the spherical resistance noise-elimination structure and the resistance noise-elimination structure of expansion chamber that the array is derived, all-round acoustic energy absorption, noise elimination efficiency has been promoted, the noise elimination frequency band has been widened, the slick and sly curved surface of spherical structure, can effectively reduce ventilation resistance, improve aerodynamic performance, reduce the power equipment energy consumption, reach energy-conserving purpose, sphere array or dysmorphism (dislocation) array, the noise elimination passageway of formation, through-flow cross-section gradual change and alternate variation, the direct penetration of high frequency sound in the passageway has been controlled, effectively restrain the high frequency inefficacy phenomenon.
The utility model discloses a be applied to noise control engineering reality with this utility model technical scheme, the result shows, compares with its similar noise-abatement structure, and average noise elimination volume increases about 10%, and resistance loss reduces about 3%, and is energy-conserving about 3%, and the high frequency inefficacy phenomenon effectively restraines.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent replacements may be made for some of the technical features of the embodiments. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.
Claims (8)
1. The utility model provides a resistive noise cancelling structure of spherical array which characterized in that: the spheroid diameter size is confirmed according to the noise elimination passageway through flow area size, and spherical noise elimination body includes perforated plate, baffle and pipe, the baffle is circular, circular baffle center trompil, will the pipe penetrates in the hole of circular baffle center trompil and fixed, the pipe length of circular baffle both sides is the same, adopts eight little baffle equipartitions to be in circular baffle both sides and arrange with the circumference type array, little baffle includes long limit and minor face and circular arc limit, the long limit of little baffle is fixed on the pipe, the minor face is fixed on the circular baffle, spherical noise elimination body skeleton texture includes one the pipe, one circular baffle and eight little baffle fix the perforated plate on spherical noise elimination body skeleton texture's surface, finally forms eight one-eighth spherical cavities that the size is the same and the structure is the same, the spherical cavity is filled with sound absorption materials, the circular pipes protruding out of the spherical body part are buckled together by a fastener to form a spherical noise elimination body string, the number of the spherical noise elimination bodies is determined according to the size of noise elimination quantity, the spherical noise elimination bodies can be tightly connected in series or dispersedly connected in series at intervals of 1-3 diameters of the spherical noise elimination bodies, and a spherical array or a special-shaped array in the spherical noise elimination string body is arranged in a noise elimination channel through a supporting member to form a spherical array resistive noise elimination structure.
2. The spherical array resistive muffler structure according to claim 1, wherein: the diameter of the spherical noise elimination body is determined according to the size of the through flow area of the noise elimination channel, and the diameter D =100 mm-500 mm of the spherical noise elimination body.
3. The spherical array resistive muffler structure according to claim 1, wherein: the outer diameter D =10mm ~50mm of pipe, length L = D +100mm, circular baffle diameter H = D-2mm, the minor face of little baffle is the quarter of circular baffle.
4. The spherical array resistive muffler structure according to claim 1, wherein: the aperture of the central opening of the circular partition plate is phi = d +2 mm.
5. The spherical array resistive muffler structure according to claim 1, wherein: the partition plate, the round pipe and the perforated plate are all made of metal, glass fiber reinforced plastic, PVC and other materials with certain strength, the metal materials are welded or riveted, and the PVC materials are connected in a hot melting mode.
6. The spherical array resistive muffler structure according to claim 1, wherein: the thickness of the partition plate is 1-3 mm, the wall thickness of the circular tube is 3-5 mm, and the perforation rate of the perforated plate is 20-30%.
7. The spherical array resistive muffler structure according to claim 1, wherein: the round pipe of the convex sphere part is 50mm of convex sphere, and the round pipes with 50mm of convex sphere are buckled together by a fastener.
8. The spherical array resistive muffler structure according to claim 1, wherein: the sound absorption material comprises homogeneous materials such as porous alumina, foamed aluminum, foamed ceramic, foamed glass, foamed melamine and the like, or sound absorption materials such as centrifugal superfine glass wool, slag wool, wood fiber, polystyrene, polyurethane foam plastic, urea-formaldehyde foam plastic, phenolic foam plastic and the like which are wrapped by sound-transmitting glass fiber cloth, sound absorption felt or other sound-transmitting fabrics are filled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020416462.2U CN212081615U (en) | 2020-03-27 | 2020-03-27 | Spherical array resistive noise elimination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020416462.2U CN212081615U (en) | 2020-03-27 | 2020-03-27 | Spherical array resistive noise elimination structure |
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| Publication Number | Publication Date |
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| CN212081615U true CN212081615U (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020416462.2U Expired - Fee Related CN212081615U (en) | 2020-03-27 | 2020-03-27 | Spherical array resistive noise elimination structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628603A (en) * | 2021-08-30 | 2021-11-09 | 武汉理工大学 | Combined silencer |
-
2020
- 2020-03-27 CN CN202020416462.2U patent/CN212081615U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628603A (en) * | 2021-08-30 | 2021-11-09 | 武汉理工大学 | Combined silencer |
| CN113628603B (en) * | 2021-08-30 | 2023-08-29 | 武汉理工大学 | Combined silencer |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |