CN220669746U - Pipeline noise elimination static pressure case - Google Patents
Pipeline noise elimination static pressure case Download PDFInfo
- Publication number
- CN220669746U CN220669746U CN202321999010.1U CN202321999010U CN220669746U CN 220669746 U CN220669746 U CN 220669746U CN 202321999010 U CN202321999010 U CN 202321999010U CN 220669746 U CN220669746 U CN 220669746U
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- China
- Prior art keywords
- static pressure
- sound absorbing
- sound
- silencing
- ventilation
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- 230000003068 static effect Effects 0.000 title claims abstract description 27
- 230000008030 elimination Effects 0.000 title description 8
- 238000003379 elimination reaction Methods 0.000 title description 8
- 238000009423 ventilation Methods 0.000 claims abstract description 35
- 230000030279 gene silencing Effects 0.000 claims abstract description 25
- 239000011148 porous material Substances 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001743 silencing effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Abstract
The utility model relates to the technical field of static pressure boxes, in particular to a pipeline silencing static pressure box, wherein a ventilation cavity is arranged in the static pressure box, a plurality of sound absorbing plates are arranged in the ventilation cavity at intervals, the ventilation cavity is divided into a plurality of silencing cavities by the sound absorbing plates, and the sound absorbing plates are arranged in an extending mode along the air outlet direction.
Description
Technical Field
The utility model relates to the technical field of static pressure boxes, in particular to a pipeline silencing static pressure box.
Background
The pipeline silencing static pressure box is used for enabling partial dynamic pressure generated by air supply equipment to be changed into static pressure, stabilizing air flow and reducing air flow vibration, so that air supply efficiency is higher, most of pipeline static pressure boxes on the market at present are provided with silencing materials in box frames, and therefore silencing effects are not ideal.
Disclosure of Invention
In order to solve the problems of the background technology, the utility model provides the pipeline silencing static pressure box, which can greatly improve the silencing effect.
In order to achieve the above purpose, the utility model provides a pipeline silencing static pressure box, which is characterized in that a ventilation cavity is arranged in the static pressure box, a plurality of sound absorbing plates are arranged in the ventilation cavity at intervals, and the ventilation cavity is divided into a plurality of silencing cavities by the sound absorbing plates;
wherein, the acoustic board extends along the air-out direction and sets up.
In one embodiment of the present application, the sound absorbing panel comprises:
the two micro-pore plates are arranged between two adjacent silencing cavities, and an installation space is arranged between the two micro-pore plates;
the sound-absorbing cotton is filled in the installation space; and
and the glass fiber cloth is coated on the sound-absorbing cotton.
In one embodiment of the present application, the sound absorbing panel comprises:
the windward section is arranged at one side of the air inlet of the ventilation cavity; and
the ventilation section, the ventilation section set up in air outlet one side of ventilation chamber, windward section and ventilation section are the contained angle setting.
In an embodiment of the present application, a side surface of the ventilation section facing the air inlet direction is defined as a windward surface, and a side facing away from the air inlet direction is defined as a leeward surface, and the leeward surface is provided with a waterproof board.
According to the utility model, the sound absorbing cotton and the glass fiber cloth are filled in the sound absorbing boards to serve as sound absorbing materials, and sound waves reaching the sound absorbing cotton can be buffered and absorbed due to the fact that the sound absorbing cotton is provided with a plurality of micropores formed by air, so that plane reflection sound waves with the sound absorbing cotton are reduced, and output sound waves are weakened, and therefore the sound absorbing effect of the pipeline sound absorbing and silencing box is improved;
in another embodiment, the back wind surface of the sound absorbing plate is set to be a waterproof plate, the windward surface of the sound absorbing plate is set to be a micro-pore plate, and the back wind surface of the sound absorbing plate and the windward surface are set to be included angles, so that kinetic energy is consumed through collision between the included angles when wind passes through, wind force is weakened, and therefore a sound elimination effect is achieved, and the waterproof plate is used for preventing water from penetrating or water molecules from penetrating through a complete coating, so that the waterproof effect of the pipeline sound elimination silence box is improved.
The foregoing description is only an overview of the technical solution of the present utility model, and may be implemented according to the content of the specification in order to make the technical means of the present utility model more clearly understood, and in order to make the above and other objects, features and advantages of the present utility model more clearly understood, the following specific preferred embodiment is given by way of the following detailed description in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a pipe muffling static pressure tank in one embodiment;
FIG. 2 is a schematic view of a windward side structure of a second embodiment of a pipe noise elimination static pressure tank;
fig. 3 is a schematic diagram of a leeward side structure of a second embodiment of a pipe noise elimination static pressure tank.
In the figure: 1. a ventilation chamber; 11. a sound absorbing panel; 111. a microplate; 112. a waterproof board; 12. and an acoustic cavity.
Detailed Description
In order that the utility model may be more readily understood, a further description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
It should be noted that, as used herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "top," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Unless otherwise indicated, the meaning of "a plurality" is two or more.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
Embodiment one:
as shown in fig. 1, a pipeline silencing static pressure box is provided with a ventilation cavity 1, a plurality of sound absorbing plates 11 are arranged in the ventilation cavity 1 at intervals, and the ventilation cavity 1 is divided into a plurality of silencing cavities 12 by the sound absorbing plates 11;
wherein the sound absorbing plate 11 is arranged in an extending way along the air outlet direction;
the static pressure box is internally provided with a cavity, the cavity is called as a ventilation cavity 1, two ends of sound absorbing plates 11 are fixed on two side walls in the static pressure box, a plurality of sound absorbing plates 11 are arranged in the ventilation cavity 1 at intervals and uniformly, and a gap between a lower plate surface of each sound absorbing plate 11 arranged at the upper end and an upper plate surface adjacent to the lower end is called as an silencing cavity 12, so that wind energy can be fully processed when the static pressure box is ventilated through the arrangement of the silencing cavity 12;
the sound absorbing plate 11 is a cuboid plate, and the length of the sound absorbing plate 11 extends to the air inlet and the air outlet of the box body, so that wind can be better sent out, and the normal operation of the pipeline silencing static pressure box is ensured.
As shown in fig. 1, the sound absorbing panel 11 in the present embodiment includes:
the micro-pore plates 111 are arranged in two, the two micro-pore plates 111 are arranged between the two adjacent sound-eliminating cavities 12, and an installation space is arranged between the two micro-pore plates 111;
the sound-absorbing cotton is filled in the installation space; and
glass fiber cloth which is coated on the sound-absorbing cotton;
the structure of the micro-pore plates 111 is a perforated plate, the micro-pore plates 111 are placed in the ventilation cavity 1 and connected with the inner wall of the static pressure box, a gap is reserved between every two micro-pore plates 111, the gap is called an installation space, sound-absorbing cotton is filled in the installation space and covered by glass fiber cloth, the fillers in the installation space are called silencing materials, the plate with the silencing materials clamped between the two micro-pore plates 111 is called a sound-absorbing plate 11, sound waves reaching the sound-absorbing cotton can be buffered and absorbed due to the fact that the sound-absorbing cotton has a plurality of micro-pores formed by air, plane reflection sound waves with the sound-absorbing cotton are reduced, and accordingly output sound waves are weakened, and therefore the silencing effect of the pipeline silencing and silencing box is improved.
Embodiment two:
the muffler plate provided in this embodiment, as shown in fig. 2 to 3, has all the technical features of the muffler plate in the first embodiment, and the difference between this embodiment and embodiment 1 is that:
as shown in fig. 2 to 3, the sound absorbing panel 11 in the present embodiment includes:
the windward section is arranged at one side of the air inlet of the ventilation cavity 1; and
the ventilation section is arranged at one side of the air outlet of the ventilation cavity 1, and the windward section and the ventilation section are arranged at an included angle;
wherein, a plurality of sound-absorbing cavities 12 of one side of connecting pipe wind blowing mouth are called windward section, and one side that wind blows out through the pipeline is called ventilation section, and acoustic baffle 11 is placed for the inclined plane on the boundary line of windward section department and ventilation section department and acoustic baffle 11 inclined plane is set up about the boundary line symmetry, thereby through setting up the acoustic baffle 11 of windward section and ventilation section as the contained angle so that rainwater and dust can better landing, guaranteed the normal realization of pipeline noise elimination static pressure case noise elimination function.
As shown in fig. 2 to 3, a side of the ventilation section facing the air inlet direction in the embodiment is a windward side, and a side facing away from the air inlet direction is a leeward side, and the leeward side is provided with a waterproof board 112;
the surface of the pipe, from which wind blows to one side of the sound absorbing plate 11, is called a windward surface, the surface of the pipe, from which wind passes and from which the wind blows out of the side surface of the sound absorbing plate 11, is called a leeward surface, and the micro-pore plate 111 on the leeward surface is replaced by a sealed waterproof plate 112, and by arranging the waterproof plate 112 on the leeward surface, the leeward surface of the sound absorbing plate 11 and the windward surface of the pipe are arranged to form an included angle, so that kinetic energy is consumed through collision between the included angles when the wind passes, the wind weakens, thereby achieving a silencing effect, and the surface of the sound absorbing plate 11 blocks water permeation or water molecule permeation by forming a complete coating, thereby improving the waterproof effect of the pipe silencing box.
The above examples are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and modifications made by those skilled in the art based on the present utility model are included in the scope of the present utility model.
Claims (3)
1. The pipeline silencing static pressure box is characterized in that a ventilation cavity (1) is arranged in the static pressure box, a plurality of sound absorbing plates (11) are arranged in the ventilation cavity (1) at intervals, and the ventilation cavity (1) is divided into a plurality of silencing cavities (12) by the sound absorbing plates (11);
wherein, acoustic baffle (11) extend along the air-out direction setting, acoustic baffle (11) include:
the windward section is arranged at one side of the air inlet of the ventilation cavity (1); and
the ventilation section is arranged on one side of an air outlet of the ventilation cavity (1), and the windward section and the ventilation section are arranged at an included angle.
2. A pipe silencing static pressure tank as claimed in claim 1, wherein the sound absorbing panel (11) comprises:
the micro-pore plates (111) are arranged, two micro-pore plates (111) are arranged between two adjacent silencing cavities (12), and an installation space is arranged between the two micro-pore plates (111);
the sound-absorbing cotton is filled in the installation space; and
and the glass fiber cloth is coated on the sound-absorbing cotton.
3. A pipe silencing static pressure tank as claimed in claim 1, characterized in that a side of the ventilation section facing the air intake direction is defined as a windward side, a side facing away from the air intake direction is defined as a leeward side, and the leeward side is provided with a waterproof plate (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321999010.1U CN220669746U (en) | 2023-07-27 | 2023-07-27 | Pipeline noise elimination static pressure case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321999010.1U CN220669746U (en) | 2023-07-27 | 2023-07-27 | Pipeline noise elimination static pressure case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220669746U true CN220669746U (en) | 2024-03-26 |
Family
ID=90334773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321999010.1U Active CN220669746U (en) | 2023-07-27 | 2023-07-27 | Pipeline noise elimination static pressure case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220669746U (en) |
-
2023
- 2023-07-27 CN CN202321999010.1U patent/CN220669746U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |