CN211850100U - Low-frequency insulation sound absorption device for noise reduction of transformer substation - Google Patents
Low-frequency insulation sound absorption device for noise reduction of transformer substation Download PDFInfo
- Publication number
- CN211850100U CN211850100U CN202020129239.XU CN202020129239U CN211850100U CN 211850100 U CN211850100 U CN 211850100U CN 202020129239 U CN202020129239 U CN 202020129239U CN 211850100 U CN211850100 U CN 211850100U
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- China
- Prior art keywords
- sound absorption
- light steel
- centrifugal glass
- glass plate
- steel keel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 48
- 238000009413 insulation Methods 0.000 title claims description 16
- 239000011521 glass Substances 0.000 claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 239000003822 epoxy resin Substances 0.000 claims abstract description 21
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 18
- 239000004744 fabric Substances 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims 1
- 239000011491 glass wool Substances 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000006096 absorbing agent Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a low-frequency insulating sound absorption device for reducing noise of a transformer substation, which belongs to the technical field of environmental engineering and comprises a light steel keel frame, an epoxy resin sound absorption plate and a centrifugal glass plate group; the light steel keel frame is erected on the installation station; the spring piece a penetrates through the light steel keel, and two ends of the spring piece a extend towards the direction far away from the light steel keel; the epoxy resin sound absorption plate covers the light steel keel frame; the centrifugal glass plate group comprises a plurality of centrifugal glass plates, and the centrifugal glass plates are clamped between the spring pieces a between the adjacent light steel keels and the epoxy resin sound absorption plates; the novel sound absorption structure is installed on the inner wall surface or the ceiling of a transformer substation, the total noise level in the transformer substation can be reduced, low-frequency noise can be effectively reduced, when a centrifugal glass plate group is impacted by noise sound waves, vibration waves can be effectively absorbed by the spring pieces arranged on the back of the centrifugal glass plate in an original mode, the noise level is further reduced, and in addition, the panel of the sound absorption structure is an epoxy resin sound absorption plate and has good insulating performance.
Description
Technical Field
The utility model belongs to the technical field of environmental engineering, especially, relate to an insulating sound absorber of low frequency for transformer substation makes an uproar falls.
Background
Along with the development of economy and the acceleration of urbanization process, the electric load of urban areas is continuously increased, more and more transformer substations are arranged in the urban areas, the distance between the transformer substations and residential buildings is closer and closer, higher noise can be generated when a transformer in the transformer substations operates, the noise is low-frequency, sound pressure levels at 100Hz, 200Hz and 300Hz have very high peak values, the transmission attenuation of the noise of the transformer is slow, the influence range is large, more and more environmental pollution complaints caused by the influence of the noise of the transformer are required, and noise reduction treatment is required.
The most common method for the noise reduction treatment of the transformer substation is to install a sound absorption structure in the transformer substation, and the existing sound absorption structure adopts a metal plate as a panel and is not insulated; in addition, the existing sound absorption structure has poor low-frequency sound absorption performance, and the transformer noise has obvious low-frequency characteristics, so the existing sound absorption structure is not suitable for reducing the noise of the transformer substation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a low frequency insulation sound absorption device for making an uproar falls in transformer substation, it is installed on the interior wall or the ceiling of transformer substation, not only can reduce the total noise level in the transformer substation, still can effectively reduce low-frequency noise, and when the centrifugal glass board group was strikeed to the noise sound wave, the spring leaf that centrifugal glass board back originality set up can the effective absorption wave that shakes, further reduces the noise level, and in addition, sound-absorbing structure's panel is epoxy acoustic baffle, has good insulating nature.
In order to solve the technical problems that the sound absorption device for the transformer substation in the prior art does not consider the insulation problem, the low-frequency noise cannot be eliminated and the noise reduction effect is poor, the utility model provides a low-frequency insulation sound absorption device for reducing the noise of the transformer substation, which comprises a light steel keel frame, an epoxy resin sound absorption plate and a centrifugal glass plate group;
the light steel keel frame comprises a plurality of light steel keels and spring pieces a, and each light steel keel is erected on an installation station; the spring piece a penetrates through the light steel keel, and two ends of the spring piece a extend towards the direction far away from the light steel keel;
the epoxy resin sound absorption plate covers the light steel keel frame and is fixed at the end part of the light steel keel far away from the installation station through a self-plugging rivet;
the centrifugal glass plate group comprises a plurality of centrifugal glass plates, and the centrifugal glass plates are clamped between the spring pieces a between the adjacent light steel keels and the epoxy resin sound absorption plates.
Further, the utility model provides a pair of a low frequency insulation sound absorber for making an uproar falls in transformer substation, wherein, each centrifugal glass board all adopt the cladding of glass silk cloth.
Further, the utility model provides a pair of a low frequency insulation sound absorber for making an uproar falls in transformer substation, wherein, centrifugal glass board with distance between the installation station is 50 mm.
Further, the utility model provides a pair of a low frequency insulation sound absorption device for making an uproar falls in transformer substation reachs in the actual test, and centrifugal glass plate thickness 50mm apart from installation station distance 50mm, the unit weight 48kg/m3The sound absorption effect is optimal, but after the centrifugal glass plate is placed for a long time, the centrifugal glass plate can be bent under the action of self weight, and the bending is causedThe bending not only changes the local volume weight, but also changes the distance between the centrifugal glass plate and the installation station, and in addition, the assembly gap between the centrifugal glass plate and the light steel keel is enlarged, so that the sound absorption performance is greatly reduced; the centrifugal glass plate is propped against by the raised spring pieces b, so that the centrifugal glass plate can be ensured not to be bent after being placed for a long time.
Further, the utility model provides a pair of a low frequency insulation sound absorber for making an uproar falls in transformer substation wherein, it is equipped with the layering to fill up between epoxy acoustic baffle and the self-plugging rivet.
Further, the utility model provides a pair of a low frequency insulation sound absorber for making an uproar falls in transformer substation, wherein, epoxy sound absorption plate thickness is 1.2 mm.
Further, the utility model provides a pair of a low frequency insulation sound absorber for making an uproar falls in transformer substation, wherein, centrifugal glass plate thickness is 50 mm.
The utility model relates to a low frequency insulation sound absorption device for making an uproar falls in transformer substation compares with prior art and has following advantage: on one hand, the panel of the sound absorption structure is an epoxy resin sound absorption plate, and has good insulativity; on the other hand, the spring leaf is arranged on the inner wall surface or the ceiling of the transformer substation, so that the total noise level in the transformer substation can be reduced, and when noise sound waves impact the centrifugal glass plate group, the spring leaf arranged on the back of the centrifugal glass plate can effectively absorb vibration waves, so that the noise level is further reduced; in addition, the mode that the convex part of the spring piece b arranged in an arched shape is close to the centrifugal glass plate can ensure that the centrifugal glass plate still cannot be bent after being placed for a long time, and the sound absorption performance is durable.
Drawings
Fig. 1 is a schematic view of a local structure of a low-frequency insulating sound absorption device for reducing noise of a transformer substation according to the present invention;
FIG. 2 is a schematic view of the alternate position configuration of FIG. 1;
fig. 3 is an explosion structure diagram of the low-frequency insulating sound absorption device for reducing noise in a transformer substation of the present invention;
fig. 4 is a schematic diagram of the position-changing structure of fig. 3.
Wherein: 1. a light steel keel frame; 2. an epoxy resin sound absorbing panel; 3. centrifuging the glass plate group; 4. a light steel keel; 5. installing a station; 6. Layering; 7. self-plugging rivets; 8. centrifuging the glass plate; 9. glass fiber cloth; 10. a spring piece a; 11. a spring piece b.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention;
it should be noted that, in the description of the present invention, it is to be noted that the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left", "right", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the embodiment provides a low-frequency insulating sound absorption device for reducing noise of a transformer substation, which includes a light steel keel frame 1, an epoxy resin sound absorption plate 2 and a centrifugal glass plate group 3;
the light steel keel frame comprises a light steel keel frame 1, wherein the light steel keel frame 1 comprises a plurality of light steel keels 4 and spring pieces a10, and each light steel keel 4 is erected at an installation station 5; the spring piece a10 penetrates through the light steel keel 4, and both ends of the spring piece a10 extend away from the light steel keel 4;
the epoxy resin sound absorption plate 2 covers the light steel keel frame 1, and is fixed to the end part, far away from the installation station 5, of the light steel keel 4 through a pressing strip 6 and a self-plugging rivet 7;
the centrifugal glass plate group 3 comprises a plurality of centrifugal glass plates 8, each centrifugal glass plate 8 is coated by glass fiber cloth 9, and the centrifugal glass plates 8 are clamped between the spring pieces a10 between the adjacent light steel keels 4 and the epoxy resin sound absorption plate 2;
in this example, after a plurality of tests, the distance between the centrifugal glass plate 8 and the installation station 5 is 50mm, the thickness of the centrifugal glass plate 8 is 50mm, and the volume weight is 48kg/m3When the thickness of the epoxy resin sound absorption plate 2 is 1.2mm, the noise reduction effect applied to the transformer substation is the best, so that the thickness of the centrifugal glass plate 8 in the embodiment is 50mm, and the volume weight is 48kg/m3The distance between the centrifugal glass plate 8 and the installation station 5 is selected to be 50mm, and the thickness of the epoxy resin sound absorption plate 2 is selected to be 1.2 mm;
as a further preferable technical solution of the present embodiment, as shown in fig. 3 and 4, after the centrifugal glass plate 8 is placed for a long time, a bending phenomenon occurs under the action of its own weight, and such bending not only changes the local volume weight but also changes the distance between the installation stations 5, and in addition, the assembly gap between the centrifugal glass plate 8 and the light steel keel 4 becomes large, and the sound absorption performance is greatly reduced, therefore, a spring piece b11 is provided between the adjacent light steel keels 4, both ends of the spring piece b11 respectively abut against the adjacent light steel keels 4 and are arched in a direction away from the installation stations 5, the convex part of the spring piece b11 is tightly attached to the centrifugal glass plate 8, and the spring piece b11 is provided between the centrifugal glass plate 8 and the installation stations 5; the convex spring b11 is used to abut against the centrifugal glass plate 8, so that the centrifugal glass plate 8 is ensured not to bend after being placed for a long time.
The assembly process and principle of the embodiment are as follows: a plurality of spring pieces a10 penetrate through and are fixed on each light steel keel 4 at equal intervals, so that the distance between the spring pieces a10 and the two sides of the light steel keel 4 is equal, the spring pieces b11 are arranged between the adjacent light steel keels 4, the two ends of each spring piece b11 are tightly abutted against the adjacent light steel keels 4 and are arched and outwards protruded, then the light steel keels 4 are arranged on the wall in parallel, the epoxy resin sound absorption plate 2 covers the light steel keel group, the pressing strips 6 are arranged at the positions corresponding to the light steel keels 4, the light steel keels 4 are integrally fixed through the self-plugging rivets 7, and finally the centrifugal glass plate 8 is clamped among the spring pieces a10, the spring pieces b11 and the epoxy resin sound absorption plate 2.
The details of the present invention are well known to those skilled in the art.
Finally, it is to be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified and replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (7)
1. A low-frequency insulation sound absorption device for reducing noise of a transformer substation is characterized by comprising a light steel keel frame, an epoxy resin sound absorption plate and a centrifugal glass plate group;
the light steel keel frame comprises a plurality of light steel keels and spring pieces a, and each light steel keel is erected on an installation station; the spring piece a penetrates through the light steel keel, and two ends of the spring piece a extend towards the direction far away from the light steel keel;
the epoxy resin sound absorption plate covers the light steel keel frame and is fixed at the end part of the light steel keel far away from the installation station through a self-plugging rivet;
the centrifugal glass plate group comprises a plurality of centrifugal glass plates, and the centrifugal glass plates are clamped between the spring pieces a between the adjacent light steel keels and the epoxy resin sound absorption plates.
2. The low frequency insulation sound absorption device for substation noise reduction according to claim 1, wherein each centrifugal glass plate is coated with glass wool cloth.
3. The low frequency insulating and sound absorbing device for substation noise reduction according to claim 1, wherein the distance between the centrifugal glass plate and the installation station is 50 mm.
4. The low-frequency insulation and sound absorption device for reducing the noise of the transformer substation of claim 1, wherein a spring piece b is arranged between the adjacent lightgage steel joists, two ends of the spring piece b respectively abut against the adjacent lightgage steel joists and protrude in a bow shape towards the direction away from the installation station, the protruding part of the spring piece b is tightly attached to the centrifugal glass plate, and the spring piece b is arranged between the centrifugal glass plate and the installation station.
5. The low-frequency insulating and sound absorbing device for substation noise reduction according to claim 1, wherein a bead is padded between the epoxy resin sound absorbing plate and the blind rivet.
6. The low frequency insulation sound absorption device for substation noise reduction according to claim 1, wherein the thickness of the epoxy resin sound absorption plate is 1.2 mm.
7. The low frequency insulating and sound absorbing device for substation noise reduction according to claim 1, wherein the centrifugal glass plate has a thickness of 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020129239.XU CN211850100U (en) | 2020-01-20 | 2020-01-20 | Low-frequency insulation sound absorption device for noise reduction of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020129239.XU CN211850100U (en) | 2020-01-20 | 2020-01-20 | Low-frequency insulation sound absorption device for noise reduction of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211850100U true CN211850100U (en) | 2020-11-03 |
Family
ID=73232109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020129239.XU Expired - Fee Related CN211850100U (en) | 2020-01-20 | 2020-01-20 | Low-frequency insulation sound absorption device for noise reduction of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211850100U (en) |
-
2020
- 2020-01-20 CN CN202020129239.XU patent/CN211850100U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |
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| CF01 | Termination of patent right due to non-payment of annual fee |