CN212901748U - Silencing static pressure box - Google Patents
Silencing static pressure box Download PDFInfo
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- CN212901748U CN212901748U CN202020837954.9U CN202020837954U CN212901748U CN 212901748 U CN212901748 U CN 212901748U CN 202020837954 U CN202020837954 U CN 202020837954U CN 212901748 U CN212901748 U CN 212901748U
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- sound absorption
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Abstract
The utility model relates to a noise elimination technical field, in particular to noise elimination static pressure case. The silencing static pressure box comprises a box body, an upper block, a lower block, a horizontal sound absorption plate and a vertical sound absorption plate; the box body comprises an air inlet and an air outlet; the air inlet is arranged at the center of the lower part of the box body; the air outlet is arranged in the center of the upper part of the box body; an inner cavity is arranged in the box body, and the inner cavity is connected with the air inlet and the air outlet; the two upper blocks are arranged on the upper part of the inner cavity and are respectively arranged on two sides of the air outlet; the two lower blocks are arranged at the lower part of the inner cavity and are respectively arranged at two sides of the air inlet; the horizontal sound-absorbing boards are arranged in two numbers, and the two horizontal sound-absorbing boards are respectively arranged below the upper block and above the lower block.
Description
Technical Field
The utility model relates to a noise elimination technical field, in particular to noise elimination static pressure case.
Background
The silencing static pressure box is a necessary accessory for reducing dynamic pressure, increasing static pressure, stabilizing air flow and reducing air flow vibration of the air supply system, and can make the air supply effect more ideal. A plenum box is a device that both allows airflow to pass through and effectively prevents or attenuates the outward propagation of acoustic energy.
The existing silencing static pressure box has poor silencing effect due to unreasonable structure arrangement, and cannot meet the increasing industrial requirements.
Therefore, it is necessary to provide a technical means to solve the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a silencing static pressure box, which comprises a box body, an upper block, a lower block, a horizontal sound-absorbing plate and a vertical sound-absorbing plate;
the box body comprises an air inlet and an air outlet; the air inlet is arranged at the center of the lower part of the box body; the air outlet is arranged in the center of the upper part of the box body; an inner cavity is arranged in the box body, and the inner cavity is connected with the air inlet and the air outlet; the two upper blocks are arranged on the upper part of the inner cavity and are respectively arranged on two sides of the air outlet; the two lower blocks are arranged at the lower part of the inner cavity and are respectively arranged at two sides of the air inlet; the two horizontal sound-absorbing plates are respectively arranged below the upper block and above the lower block; the vertical sound absorption plates are arranged in a plurality and are vertically arranged between the two horizontal sound absorption plates at equal intervals and connected with the two horizontal sound absorption plates;
a plurality of air holes are formed in the horizontal sound-absorbing plate and the vertical sound-absorbing plate;
and a layer of sound absorption material layer is laid on the surface layers of the upper block, the lower block, the horizontal sound absorption plate and the vertical sound absorption plate.
Through the setting of last piece, lower piece, horizontal acoustic baffle and vertical acoustic baffle, can effectual increase static pressure, stabilize the air current, make the air supply effect more ideal.
Furthermore, in order to enhance the silencing effect, the sound absorption material layer comprises a glass cloth layer and a glass wool layer from inside to outside; the glass wool layer is made of centrifugal glass wool.
Furthermore, in order to ensure the air inlet and air delivery efficiency of the air inlet and the air outlet and ensure that the split flow can be effectively input and output from a channel formed by two adjacent vertical sound-absorbing plates, the cross-sectional shapes of the upper block and the lower block are both right-angled trapezoids; the inclined plane parts of the right trapezoid face the horizontal sound-absorbing board.
In a specific technical scheme, four vertical sound absorption plates are arranged.
In a specific technical scheme, six vertical sound-absorbing plates are arranged.
In a specific technical scheme, eight vertical sound-absorbing boards are arranged.
Furthermore, in order to enhance the stability of the structure and reduce the noise during the operation, a buffer cushion layer is laid on the lower part of the lower block.
Further, in order to improve the buffering effect, the cushion layer is a rubber cushion layer.
The utility model relates to a pair of effectual noise elimination static pressure case of silence through the setting of last piece, lower piece, horizontal acoustic baffle and vertical acoustic baffle, can effectual increase static pressure, stable air current, and the silence is effectual, makes the air supply effect more ideal.
Drawings
Fig. 1 is a schematic structural view of a silencing static pressure box according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
The utility model discloses a better embodiment, this embodiment is realized like this, a noise elimination static pressure case, noise elimination static pressure case includes box 1, upper block 2, lower block 3, horizontal acoustic baffle 4 and vertical acoustic baffle 5;
the box body 1 comprises an air inlet 11 and an air outlet 12; the air inlet 11 is arranged at the center of the lower part of the box body 1; the air outlet 12 is arranged in the center of the upper part of the box body 1; an inner cavity is arranged in the box body 1, and is connected with the air inlet 11 and the air outlet 12; two upper blocks 2 are arranged, and the two upper blocks 2 are arranged at the upper part of the inner cavity and are respectively arranged at two sides of the air outlet 12; the number of the lower blocks 3 is two, and the two lower blocks 3 are both arranged at the lower part of the inner cavity and are respectively arranged at two sides of the air inlet 11; the number of the horizontal sound-absorbing plates 4 is two, and the two horizontal sound-absorbing plates 4 are respectively arranged below the upper block 2 and above the lower block 3; the vertical sound absorption plates 5 are arranged in plurality, and the vertical sound absorption plates 5 are vertically arranged between the two horizontal sound absorption plates 4 at equal intervals and are connected with the two horizontal sound absorption plates 4;
a plurality of air holes are formed in the horizontal sound-absorbing plate 4 and the vertical sound-absorbing plate 5;
and a layer of sound absorption material layer is laid on the surface layers of the upper block 2, the lower block 3, the horizontal sound absorption plate 4 and the vertical sound absorption plate 5.
Through the setting of upper block 2, lower block 3, horizontal acoustic baffle 4 and vertical acoustic baffle 5, can effectual increase static pressure, stabilize the air current, make the air supply effect more ideal.
Furthermore, in order to enhance the silencing effect, the sound absorption material layer comprises a glass cloth layer and a glass wool layer from inside to outside; the glass wool layer is made of centrifugal glass wool.
Further, in order to ensure the air inlet and air delivery efficiency of the air inlet 11 and the air outlet 12 and ensure that the split flow can be effectively input and output from the channel formed by the two adjacent vertical sound-absorbing plates 5, the cross-sectional shapes of the upper block 2 and the lower block 3 are both right-angled trapezoids; the inclined plane parts of the right trapezoid all face the horizontal sound-absorbing panel 4.
In a particular embodiment, four vertical sound-absorbing panels 5 are provided.
In a particular embodiment, said vertical sound-absorbing panels 5 are provided in six.
In a particular embodiment, eight vertical sound-absorbing panels 5 are provided.
Further, in order to enhance the structural stability and reduce the noise during operation, a cushion layer 6 is laid on the lower portion of the lower block 3.
Further, in order to improve the buffering effect, the cushion layer is a rubber cushion layer.
The utility model relates to a pair of effectual noise elimination static pressure case of silence through last piece 2, lower piece 3, horizontal acoustic baffle 4 and vertical acoustic baffle 5's setting, can effectual increase static pressure, stable air current, and the silence is effectual, makes the air supply effect more ideal.
The above description is only for the preferred embodiment of the present invention, and the structure is not limited to the above-mentioned shape, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A noise elimination plenum chamber which characterized in that: the silencing static pressure box comprises a box body, an upper block, a lower block, a horizontal sound absorption plate and a vertical sound absorption plate;
the box body comprises an air inlet and an air outlet; the air inlet is arranged at the center of the lower part of the box body; the air outlet is arranged in the center of the upper part of the box body; an inner cavity is arranged in the box body, and the inner cavity is connected with the air inlet and the air outlet; the two upper blocks are arranged on the upper part of the inner cavity and are respectively arranged on two sides of the air outlet; the two lower blocks are arranged at the lower part of the inner cavity and are respectively arranged at two sides of the air inlet; the two horizontal sound-absorbing plates are respectively arranged below the upper block and above the lower block; the vertical sound absorption plates are arranged in a plurality and are vertically arranged between the two horizontal sound absorption plates at equal intervals and connected with the two horizontal sound absorption plates;
a plurality of air holes are formed in the horizontal sound-absorbing plate and the vertical sound-absorbing plate;
and a layer of sound absorption material layer is laid on the surface layers of the upper block, the lower block, the horizontal sound absorption plate and the vertical sound absorption plate.
2. The sound attenuation plenum box of claim 1, wherein: the sound absorption material layer comprises a glass cloth layer and a glass wool layer from inside to outside; the glass wool layer is made of centrifugal glass wool.
3. The sound attenuation plenum box of claim 1, wherein: the cross sections of the upper block and the lower block are all right-angle trapezoids; the inclined plane parts of the right trapezoid face the horizontal sound-absorbing board.
4. The sound attenuation plenum box of claim 1, wherein: the vertical sound absorption plates are four.
5. The sound attenuation plenum box of claim 1, wherein: six vertical sound absorption plates are arranged.
6. The sound attenuation plenum box of claim 1, wherein: eight vertical sound-absorbing boards are arranged.
7. The sound attenuation plenum box of claim 1, wherein: and a buffer cushion layer is laid on the lower part of the lower block.
8. The sound attenuation plenum box of claim 7, wherein: the cushion pad layer is a rubber cushion pad layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837954.9U CN212901748U (en) | 2020-05-19 | 2020-05-19 | Silencing static pressure box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837954.9U CN212901748U (en) | 2020-05-19 | 2020-05-19 | Silencing static pressure box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212901748U true CN212901748U (en) | 2021-04-06 |
Family
ID=75263777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020837954.9U Active CN212901748U (en) | 2020-05-19 | 2020-05-19 | Silencing static pressure box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212901748U (en) |
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2020
- 2020-05-19 CN CN202020837954.9U patent/CN212901748U/en active Active
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