CN203571994U - Noise abatement static pressure case - Google Patents
Noise abatement static pressure case Download PDFInfo
- Publication number
- CN203571994U CN203571994U CN201320491573.XU CN201320491573U CN203571994U CN 203571994 U CN203571994 U CN 203571994U CN 201320491573 U CN201320491573 U CN 201320491573U CN 203571994 U CN203571994 U CN 203571994U
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- China
- Prior art keywords
- static pressure
- absorbing material
- sound
- air inlet
- air outlet
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model provides a noise abatement static pressure case comprising a case body, an air inlet and an air outlet. The air inlet is arranged at one side of the case body, and the air outlet is disposed at the bottom of the case body. A sound absorption layer arranged onto the inner wall of the case body at least covers the part, opposite to the air inlet, of the case body. The noise abatement static pressure case can transform part of dynamic pressure into static pressure to allow wind to be blown farther, so that noise is effectively reduced, even static pressure wind is obtained and dynamic pressure loss is minimized. In addition, a flange shank connection board is employed to be connected with the air outlet, therefore, the noise abatement static pressure case also has functions of a universal joint and can be widely applied to air-out equipment of various kinds.
Description
Technical field
The utility model relates to noise elimination technique field, particularly a kind of Soundproofing static pressure box.
Background technology
Soundproofing static pressure box is the accessory that supply air system reduces a kind of necessity of dynamic pressure, increase static pressure, steady air flow and minimizing airstream vibration, its effect that can make to blow is more desirable, conventionally at fan outlet, branched airduct, converge or bifurcation, in arranging, post the plenum chamber of sound-absorbing material, except can steady air flow, also have the effect of noise elimination, the factors such as the area of sound-absorbing material and the area of outlet airduct of pasting in the absorption of Soundproofing static pressure box and the performance of sound-absorbing material, case are relevant.Soundproofing static pressure box not only can be used to reduce noise, can obtain again uniform static pressure air-out, reduces dynamic pressure loss, and also has the effect of universal contact.Plenum chamber is applied in ventilating system well, can improves the combination property of ventilating system.But it is not satisfactory that current Soundproofing static pressure box exists soundproof effect, the problems such as rear allocation of the amount of air is inhomogeneous, air quantity seriously weakens of eliminating the noise.
Utility model content
The technical problems to be solved in the utility model is the defect that overcomes prior art, provide a kind of rational in infrastructure, soundproof effect is outstanding, can produce uniform static pressure air-out after eliminating the noise, reduce the Soundproofing static pressure box of dynamic pressure loss.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
A kind of Soundproofing static pressure box of the utility model, comprise casing, air inlet, air outlet, described air inlet is located at a side of described casing, described air outlet is located at the bottom of described casing, described cabinet wall is provided with absorbent treatment, and described absorbent treatment at least covers a side box body part relative with described air inlet.
Preferably, described absorbent treatment is comprised of three layers of shell steel plate, sound-absorbing material and internal frames, and described shell steel plate and internal frame adopt pulling rivet to be connected and fixed, and described sound-absorbing material is placed between described shell steel plate and described internal frame.
Preferably, described sound-absorbing material outsourcing one deck sound-absorbing material diaphragm, described sound-absorbing material diaphragm and described sound-absorbing material one are fixed on interior sound-absorbing material protection slab by pulling rivet.
Preferably, described air inlet is connected with described casing by a side of flange shank connecting plate with described air outlet, and the opposite side of described flange shank connecting plate is fixedly connected with angle steel flange by steel rivet.
The beneficial effect that the utility model reaches is:
(1), part dynamic pressure can being become to static pressure, that wind is obtained is farther;
(2), effectively reduce noise, the noise reduction sound-deadening amount of Soundproofing static pressure box is 5～8dB (A);
(3), plenum chamber can be used to reduce noise, can obtain again uniform static pressure air-out, reduces dynamic pressure loss;
(4), in addition, Soundproofing static pressure box of the present utility model, owing to adopting flange shank connecting plate to connect air outlet, therefore going back office has the effect of universal contact, can be widely used in various air outlet devices.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model with embodiment mono-of the present utility model, does not form restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of Soundproofing static pressure box of the utility model;
The left view of Fig. 1 that Fig. 2 is;
Fig. 3 is the partial enlarged drawing of a kind of Soundproofing static pressure box absorbent treatment of the utility model;
Fig. 4 is the partial enlarged drawing of a kind of Soundproofing static pressure box air inlet of the utility model coupling part.
Number in the figure: 1-casing; 2-sound-absorbing material; 3-shell steel plate; Sound-absorbing material protection slab in 4-; 5-air inlet; 6-adpting flange; 7-air outlet; 8-flange connecting hole; 9-internal frame; 10-sound-absorbing material diaphragm; 11-pulling rivet; 12-flange shank connecting plate; 13-steel rivet; 14-angle steel flange; 15-flange.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
As Figure 1-Figure 4, a kind of Soundproofing static pressure box of the utility model, comprise casing 1, air inlet 5, air outlet 7, described air inlet 5 is located at a side of described casing 1, described air outlet 7 is located at the bottom of described casing 1, described casing 1 inwall is provided with absorbent treatment, and described absorbent treatment covers a side box body part relative with described air inlet, and covers described casing 1 top and the bottom part away from air inlet 5.
Described absorbent treatment is comprised of 9 three layers of shell steel plate 3, sound-absorbing material 2 and internal frames, and described shell steel plate 3 adopts pulling rivet 11 to be connected and fixed with described internal frame 9, and described sound-absorbing material 2 is placed between described shell steel plate 3 and described internal frame 9.
Described sound-absorbing material 2 outsourcing one deck sound-absorbing material diaphragms 10, described sound-absorbing material diaphragm 10 is fixed on interior sound-absorbing material protection slab 4 by pulling rivet 11 with described sound-absorbing material 9 one.
Described air inlet 5 is connected with described casing 1 by a side of flange shank connecting plate 12 with described air outlet 7, and the opposite side of described flange shank connecting plate 12 is fixedly connected with angle steel flange 14 by steel rivet 13.During use, before boring is fixing, flange shank connecting plate 12 should exceed angle steel flange 14 1 segment length, this segment length can according to circumstances be set to 5-10mm, after steel rivet 13 is connected and fixed, evenly beat flange 15 with wooden mallet, make described air inlet 5 and described air outlet 7 be fixed on described casing 1.
This equipment, is produced static pressure and reduces wind speed by casing through absorbent treatment, thereby weakening the propagation of fan noise, then by air outlet 7, new wind evenly being sent new wind access casing by air inlet 5.
Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a Soundproofing static pressure box, comprise casing, air inlet, air outlet, it is characterized in that: described air inlet is located at a side of described casing, described air outlet is located at the bottom of described casing, described cabinet wall is provided with absorbent treatment, and described absorbent treatment at least covers a side box body part relative with described air inlet; Described absorbent treatment is comprised of three layers of shell steel plate, sound-absorbing material and internal frames, and described shell steel plate and internal frame adopt pulling rivet to be connected and fixed, and described sound-absorbing material is placed between described shell steel plate and described internal frame.
2. a kind of Soundproofing static pressure box according to claim 1, is characterized in that: described sound-absorbing material outsourcing one deck sound-absorbing material diaphragm, described sound-absorbing material diaphragm and described sound-absorbing material one are fixed on interior sound-absorbing material protection slab by pulling rivet.
3. a kind of Soundproofing static pressure box according to claim 1, it is characterized in that: described air inlet is connected with described casing by a side of flange shank connecting plate with described air outlet, and the opposite side of described flange shank connecting plate is fixedly connected with angle steel flange by steel rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320491573.XU CN203571994U (en) | 2013-08-12 | 2013-08-12 | Noise abatement static pressure case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320491573.XU CN203571994U (en) | 2013-08-12 | 2013-08-12 | Noise abatement static pressure case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203571994U true CN203571994U (en) | 2014-04-30 |
Family
ID=50539723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320491573.XU Expired - Fee Related CN203571994U (en) | 2013-08-12 | 2013-08-12 | Noise abatement static pressure case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203571994U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288301A (en) * | 2016-10-10 | 2017-01-04 | 广州康美风空调设备有限公司 | Acoustic filter integrated casing and preparation method thereof |
| CN108931296A (en) * | 2018-07-30 | 2018-12-04 | 苏州中汽检测技术服务有限公司 | Automobile relief valve noise grade test experience equipment, detection system and detection method |
| JP2019132577A (en) * | 2018-01-31 | 2019-08-08 | 富士フイルム株式会社 | Silent ventilating structure |
-
2013
- 2013-08-12 CN CN201320491573.XU patent/CN203571994U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288301A (en) * | 2016-10-10 | 2017-01-04 | 广州康美风空调设备有限公司 | Acoustic filter integrated casing and preparation method thereof |
| JP2019132577A (en) * | 2018-01-31 | 2019-08-08 | 富士フイルム株式会社 | Silent ventilating structure |
| CN108931296A (en) * | 2018-07-30 | 2018-12-04 | 苏州中汽检测技术服务有限公司 | Automobile relief valve noise grade test experience equipment, detection system and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20180812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |