CN110886404B - Ventilation silencing air suction chamber - Google Patents
Ventilation silencing air suction chamber Download PDFInfo
- Publication number
- CN110886404B CN110886404B CN201911100560.3A CN201911100560A CN110886404B CN 110886404 B CN110886404 B CN 110886404B CN 201911100560 A CN201911100560 A CN 201911100560A CN 110886404 B CN110886404 B CN 110886404B
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- wall body
- wall
- air
- sound insulation
- suction chamber
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- 238000009423 ventilation Methods 0.000 title claims abstract description 24
- 230000030279 gene silencing Effects 0.000 title description 2
- 229920000742 Cotton Polymers 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a ventilation and noise reduction type air suction chamber which comprises a wall body (1) with a cavity, wherein an air inlet (2) is formed in the outer side wall of the wall body, an air outlet (3) is formed in the inner side wall of the wall body, a first annular sound insulation plate (4) and a second annular sound insulation plate (5) which are horizontally distributed are sequentially arranged in the cavity from top to bottom at intervals, a first through hole (6) is formed in the first annular sound insulation plate, the bottom of the first through hole is connected with a conical cylinder (7) with the diameter gradually expanding downwards, the second annular sound insulation plate penetrates through the conical cylinder, the second annular sound insulation plate is of a hollow structure, a plurality of springs (8) fixedly connected with the inner side of the wall body are arranged in the second annular sound insulation plate around the center, and the tail ends of the springs are connected with a sliding block (9). The invention has the advantages of simple structure, low production cost and good ventilation and sound insulation effects.
Description
Technical Field
The invention relates to the field of building curtain walls, in particular to an air suction chamber for an industrial factory building.
Background
Ventilation and sound insulation of buildings have been two mutually restrictive requirements, and it has been a goal to reduce noise while ensuring ventilation. At present, rooms needing ventilation, such as common industrial factory building machine rooms and air compressor machine rooms, are mostly combined in a mode of air suction chamber and mechanical ventilation. The air conditioner consists of an outdoor fan cover with a vent and a wall-through air pipe; specifically, the wall is penetrated by the wall-penetrating air pipe, a ventilator is arranged on a pipe orifice at one indoor end of the wall-penetrating air pipe, and a pipe orifice at one outdoor end of the wall-penetrating air pipe extends into the outdoor fan cover; in the working process, after the ventilator is started, outdoor air sequentially enters the indoor space through the ventilation opening and the ventilation hole, so that the ventilation purpose is realized, and the high noise is inevitably generated, so that equipment such as a silencer and the like needs to be additionally arranged on a pipeline. For some specific types of work, the requirement for indoor quietness is very high, but in the related art, when the outdoor has a large noise volume, since such a common wall type ventilation device does not have a function of attenuating the noise, the outdoor noise is very easily transmitted into the indoor through the ventilation opening to affect the indoor quietness.
Chinese utility model patent publication No. CN208379833U discloses a sound insulation ventilation wall, it includes the wall body, the inside cavity that is provided with of wall body, the cavity is close to and sets up near ground that sets up air intake and air intake that the intercommunication is external on the outdoor lateral wall, sets up on the cavity is close to indoor lateral wall and communicates indoor air outlet and keep away from ground setting, all be provided with on the lateral wall of cavity and inhale the cotton piece of sound. Outdoor air enters the cavity from the air inlet and then enters the indoor space from the air outlet to complete indoor ventilation, noise entering the cavity from the air inlet is absorbed by the sound-absorbing cotton sheets arranged on the side wall of the cavity, and the phenomenon that the noise enters the indoor space from the air outlet is reduced, and as Chinese utility model patent publication No. CN203586475U discloses a wall type ventilation device, which comprises a wall-through air pipe, an outdoor fan housing and an indoor fan housing; the pipe orifice of the wall-through air pipe positioned outdoors is communicated with the outdoor fan cover; the pipe orifice of the wall-through air pipe positioned in the room is communicated with the indoor fan cover; a first sound insulation baffle plate for changing the air circulation direction is arranged in the wall-through air pipe; the first sound insulation baffle is connected with the inner wall of the wall-through air pipe; the outdoor fan cover is provided with a vent, and a second sound insulation baffle plate for changing the circulation direction of air entering from the vent is arranged inside the outdoor fan cover; the second sound insulation baffle is connected with the inner wall of the outdoor fan cover. No matter which kind of wall structure, all need lay a large amount of cotton pieces of inhaling sound and a large amount of acoustic celotex board, the cost of manufacture is high, and can not carry out self-adaptation regulation wind speed according to the fluctuation of air mass flow, and the air current passes through the ventilation effect variation behind the many times separation of acoustic celotex board, can say so as to trade certain syllable-dividing effect with ventilation performance.
Disclosure of Invention
The invention provides a ventilation noise reduction type air suction chamber with excellent noise reduction effect under the condition of not influencing ventilation as much as possible.
The technical scheme of the invention is as follows: ventilation amortization type room of breathing in, it is including the wall body that has the cavity, the air intake has been seted up on the lateral wall of wall body, the air outlet has been seted up on the inside wall of wall body, first annular acoustic celotex board and the second annular acoustic celotex board that the interval was equipped with horizontal distribution in proper order from top to bottom in the cavity, first through-hole has been seted up on the first annular acoustic celotex board, first through-hole bottom is connected with the toper barrel that the diameter expands downwards gradually, second annular acoustic celotex board passes the toper barrel, second annular acoustic celotex board is hollow structure, is equipped with a plurality of springs with the inboard rigid coupling of wall body around the center of second annular acoustic celotex board in it, the end-to-end connection of spring has the slider.
The improvement of the scheme is that the bottom of the conical cylinder body is conformally matched with a circular cover plate, and a plurality of air holes are formed in the circular cover plate.
The further improvement of the scheme is that the conical cylinder is internally lined with sound absorption cotton.
In the scheme, the longitudinal section of the sliding block is arc-shaped.
In the scheme, the air inlet is positioned at the upper end of the outer side wall of the wall body, and the air outlet is positioned at the lower end of the inner side wall of the wall body.
In the above scheme, the air inlet and/or the air outlet are/is a shutter.
The invention has the beneficial effects that through the matching of the conical cylinder body, the first sound insulation board and the second sound insulation board, the air entering the cavity of the wall body is discharged through the first through hole and the conical cylinder body in sequence, when the air flow passes through the sliding block, the sliding block is pushed to slide towards the direction of the wall body, so that the cross section area of the conical cylinder body through which the air flow can pass is changed, the air flow generates turbulence, the air flow is prevented from directly flowing into an air outlet, the air flow noise is reduced, meanwhile, the air flow can be scattered through the structure of the conical cylinder body, and the air flow is prevented from being concentrated to generate larger noise.
Drawings
FIG. 1 is a schematic of the present invention;
in the figure, the sound insulation wall comprises a wall body 1, a wall body 2, an air inlet 3, an air outlet 4, a first annular sound insulation plate 5, a second annular sound insulation plate 6, a first through hole 7, a conical cylinder body 8, a spring 9, a sliding block 10 and a circular cover plate.
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments based on the embodiments in the present invention, without any inventive work, will be apparent to those skilled in the art from the following description.
As shown in fig. 1, the sound insulation wall comprises a wall body 1 with a cavity, an air inlet 2 is formed in the outer side wall of the wall body, an air outlet 3 is formed in the inner side wall of the wall body, a first annular sound insulation plate 4 and a second annular sound insulation plate 5 which are horizontally distributed are sequentially arranged in the cavity from top to bottom at intervals, a first through hole 6 is formed in the first annular sound insulation plate, the bottom of the first through hole is connected with a conical cylinder 7 with a diameter gradually expanding downwards, the second annular sound insulation plate penetrates through the conical cylinder, the second annular sound insulation plate is of a hollow structure, a plurality of springs 8 fixedly connected with the inner side of the wall body are arranged in the second annular sound insulation plate around the center, and the tail ends of the springs are connected with a sliding block 9.
In a preferred embodiment of the invention, the air inlet is positioned at the upper end of the outer side wall of the wall body, and the air outlet is positioned at the lower end of the inner side wall of the wall body, so that the air entering the cavity is ensured to have the diffusion effect of the conical cylinder body, the air flow is slowed down, and the noise is reduced.
Another preferred embodiment of the present invention is that the bottom of the conical cylinder is conformally matched with a circular cover plate 10, and the circular cover plate is provided with a plurality of air holes, so that the air flow flowing out of the conical cylinder can be discharged from the air holes, thereby avoiding air flow concentration and further reducing noise.
Yet another preferred embodiment of the present invention is that the cone is lined internally with sound absorbing cotton to give noise reduction and sound absorption when the air flow passes through.
In another preferred embodiment of the invention, the longitudinal section of the sliding block is arc-shaped, so that the contact area between the sliding block and the air flow is increased, the sliding sensitivity of the sliding block is improved, and the size of the area can be timely changed when the air flow passes through the area defined by the sliding block.
The working principle of the invention is as follows: the ventilation blower work, the air current is inhaled the air intake, reentrant cavity gets into the toper barrel from first through-hole in, the air current is collected in the toper barrel through the constraint of first through-hole this moment, the slider normality in the second annular acoustic celotex board has at least partially to be located the toper barrel under, the slider is the annular and distributes, can give slider thrust to the wall body direction when the air current passes through, and then change the planar area that dams at slider place in the toper barrel, can both guarantee the stability that the air current passes through when the high-speed work of ventilation blower or low-speed work, last air current is discharged by a plurality of bleeder vents on the circular cover board, outside the rethread air outlet discharge wall body, whole process does not make big change to the flow direction of air current, the influence to the ventilation effect has been reduced as far as possible, the noise cancelling effect has been increaseed simultaneously.
Claims (6)
1. Ventilation amortization type room of breathing in, it is including wall body (1) that has the cavity, air intake (2) have been seted up on the lateral wall of wall body, air outlet (3), characterized by have been seted up on the inside wall of wall body: first annular acoustic celotex board (4) and second annular acoustic celotex board (5) that the interval was equipped with horizontal distribution in proper order from top to bottom in the cavity, first through-hole (6) have been seted up on the first annular acoustic celotex board, first through-hole bottom is connected with conical cylinder body (7) that the diameter expands downwards gradually, second annular acoustic celotex board passes conical cylinder body, second annular acoustic celotex board is hollow structure, is equipped with spring (8) a plurality of and the inboard rigid coupling of wall body around the center of second annular acoustic celotex board in it, the end-to-end connection of spring has slider (9).
2. A ventilated sound-deadening suction chamber as set forth in claim 1, wherein: the bottom of the conical cylinder body is conformally matched with a circular cover plate (10), and a plurality of air holes are formed in the circular cover plate.
3. A ventilated sound-deadening suction chamber as set forth in claim 1, wherein: the conical cylinder is internally lined with sound-absorbing cotton.
4. A ventilated sound-deadening suction chamber as set forth in claim 1, wherein: the longitudinal section of the sliding block is arc-shaped.
5. A ventilated sound-deadening suction chamber as set forth in claim 1, wherein: the air inlet is located at the upper end of the outer side wall of the wall body, and the air outlet is located at the lower end of the inner side wall of the wall body.
6. A ventilated sound-deadening suction chamber as set forth in claim 1, wherein: the air inlet and/or the air outlet are/is a shutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100560.3A CN110886404B (en) | 2019-11-12 | 2019-11-12 | Ventilation silencing air suction chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100560.3A CN110886404B (en) | 2019-11-12 | 2019-11-12 | Ventilation silencing air suction chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110886404A CN110886404A (en) | 2020-03-17 |
| CN110886404B true CN110886404B (en) | 2021-08-13 |
Family
ID=69747285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911100560.3A Active CN110886404B (en) | 2019-11-12 | 2019-11-12 | Ventilation silencing air suction chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110886404B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411327Y (en) * | 2000-03-20 | 2000-12-20 | 北京市劳动保护科学研究所 | Sound insulation and ventilation window |
| CN201099927Y (en) * | 2007-09-30 | 2008-08-13 | 四川正升环保科技有限公司 | Aerating and sound-deadening wall |
| CN101413316A (en) * | 2008-10-23 | 2009-04-22 | 成都大学 | Brick masonry of natural ventilation noise elimination noise separation and method thereof |
| CN202659100U (en) * | 2012-04-01 | 2013-01-09 | 广东电网公司电力科学研究院 | Ventilation and sound isolation window |
| CN208546362U (en) * | 2018-05-18 | 2019-02-26 | 珠海六和节能投资有限公司 | A kind of dedicated diffusion Taper Pipe muffler of fan of dust remover |
| CN208792530U (en) * | 2018-08-10 | 2019-04-26 | 南京博洪环保科技有限公司 | A kind of architectural engineering HVAC airflow muffler |
| CN209195237U (en) * | 2018-08-10 | 2019-08-02 | 南京博洪环保科技有限公司 | A kind of sound proof window that ventilation effect is good |
-
2019
- 2019-11-12 CN CN201911100560.3A patent/CN110886404B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411327Y (en) * | 2000-03-20 | 2000-12-20 | 北京市劳动保护科学研究所 | Sound insulation and ventilation window |
| CN201099927Y (en) * | 2007-09-30 | 2008-08-13 | 四川正升环保科技有限公司 | Aerating and sound-deadening wall |
| CN101413316A (en) * | 2008-10-23 | 2009-04-22 | 成都大学 | Brick masonry of natural ventilation noise elimination noise separation and method thereof |
| CN202659100U (en) * | 2012-04-01 | 2013-01-09 | 广东电网公司电力科学研究院 | Ventilation and sound isolation window |
| CN208546362U (en) * | 2018-05-18 | 2019-02-26 | 珠海六和节能投资有限公司 | A kind of dedicated diffusion Taper Pipe muffler of fan of dust remover |
| CN208792530U (en) * | 2018-08-10 | 2019-04-26 | 南京博洪环保科技有限公司 | A kind of architectural engineering HVAC airflow muffler |
| CN209195237U (en) * | 2018-08-10 | 2019-08-02 | 南京博洪环保科技有限公司 | A kind of sound proof window that ventilation effect is good |
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| Publication number | Publication date |
|---|---|
| CN110886404A (en) | 2020-03-17 |
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Address after: 244000 yangjiashan village, yangjiashan street, Tongling City, Anhui Province Applicant after: Tongling Nonferrous Metals Design & Research Institute Co.,Ltd. Applicant after: TONGLING NONFERROUS METALS GROUP Co.,Ltd. Address before: 244000 yangjiashan village, yangjiashan street, Tongling City, Anhui Province Applicant before: TONGLING NONFERROUS DESIGN AND Research Institute Applicant before: TONGLING NONFERROUS METALS GROUP Co.,Ltd. |
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