CN204490623U - A kind of submersible aerator admission passage denoising device - Google Patents
A kind of submersible aerator admission passage denoising device Download PDFInfo
- Publication number
- CN204490623U CN204490623U CN201520164270.6U CN201520164270U CN204490623U CN 204490623 U CN204490623 U CN 204490623U CN 201520164270 U CN201520164270 U CN 201520164270U CN 204490623 U CN204490623 U CN 204490623U
- Authority
- CN
- China
- Prior art keywords
- admission passage
- pvc board
- pvc
- stainless steel
- denoising device
- Prior art date
- 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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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model discloses a kind of submersible aerator admission passage denoising device; comprise sound damper; described sound damper one end connects with admission passage; the other end connects with safety guard; the protective layer that described sound damper comprises stainless steel perforated pipe and is enclosed within outward outside stainless steel perforated pipe; be filled with centrifugally glass-wool between described stainless steel perforated pipe and protective layer, described centrifugally glass-wool is by high-density centrifugal glass wool layer and low density centrifugal glass wool layer is stacked is compounded to form.The utility model effectively can reduce sound pollution, and operationally the produced noise emissions of aerator is lower than the emission standard being at least not more than defined.
Description
Technical field
The utility model relates to aerator technology.
Background technology
Current submersible aerator admission passage denoising device entirety adopts carbon steel material to surround noise elimination cavity, arranges several perforated pipe, adopt centrifugally glass-wool to fill between each perforated pipe in noise elimination cavity.Not only heavier-weight, volume is comparatively large, make complicated, and noise reduction is not ideal enough.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of submersible aerator admission passage denoising device, promotes noise reduction further.
For solving the problems of the technologies described above; the utility model adopts following technical scheme: a kind of submersible aerator admission passage denoising device; comprise sound damper; described sound damper one end connects with admission passage; the other end connects with safety guard; the protective layer that described sound damper comprises stainless steel perforated pipe and is enclosed within outward outside stainless steel perforated pipe; be filled with centrifugally glass-wool between described stainless steel perforated pipe and protective layer, described centrifugally glass-wool is by high-density centrifugal glass wool layer and low density centrifugal glass wool layer is stacked is compounded to form.
Preferably, described stainless steel perforated pipe is formed by the stainless steel soil weld that 0.8mm ~ 1.0mm is thick.
Preferably, described stainless steel perforated pipe wraps up one deck woven fiber glass.
Preferably, described protective layer is pvc pipe.
Preferably, described safety guard comprises the first PVC board and the second PVC board that be arranged in parallel, and described second PVC board is positioned at and sound damper attachment side, adopts in pvc pipe and wear bolt-connection between described first PVC board and the second PVC board.
Preferably, described second PVC board has been arranged side by side the 3rd PVC board, and be provided with perforate in the middle part of described second PVC board and the 3rd PVC board, the aperture of described perforate is greater than admission passage diameter.
Preferably, PVC filter screen is folded with between described second PVC board and the 3rd PVC board.
Preferably, described sound damper and admission passage union end are provided with the nipple of PVC hexagonal.
The utility model is arranged on submersible aerator admission passage, wherein centrifugally glass-wool is by high-density centrifugal glass wool layer and low density centrifugal glass wool layer is stacked is compounded to form, acoustically effective is good, sound absorption coefficient is high, especially better to the acoustically effective of intermediate frequency noise, therefore effectively can reduce sound pollution, operationally the produced noise emissions of aerator is lower than the emission standard being at least not more than defined; And the more important thing is lightweight, volume is little, simple for production.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the radial section structure iron of sound damper.
Embodiment
As depicted in figs. 1 and 2, a kind of submersible aerator admission passage denoising device, comprises sound damper 1, and described sound damper one end connects with admission passage, and the other end connects with safety guard 2.
Wherein, described sound damper 1 comprises stainless steel perforated pipe 11 and is enclosed within the protective layer 15 outside stainless steel perforated pipe outward; be filled with centrifugally glass-wool between described stainless steel perforated pipe and protective layer, described centrifugally glass-wool is compounded to form with low density centrifugal glass wool layer 14 is stacked by high-density centrifugal glass wool layer 13.Owing to adopting the centrifugally glass-wool combination of employing two kinds of different densities, acoustically effective is good, and sound absorption coefficient is high, especially better to the acoustically effective of intermediate frequency noise, therefore effectively can reduce sound pollution.Stainless steel perforated pipe 11 wraps up one deck woven fiber glass 12, is spilt by micropore to prevent glass wool in operational process.And described protective layer adopts pvc pipe because PVC material have corrosion-resistant, anti-ly to get rusty, lightweight, the feature such as easy of drawing materials.
PVC hexagonal nipple 3 is provided with at sound damper and admission passage union end.This PVC hexagonal nipple can directly be screwed on externally threaded flange, is convenient to install with admission passage.
Stainless steel perforated pipe 11 is formed by the stainless steel soil weld that 0.8mm ~ 1.0mm is thick.Its effect is as follows:
One, because its aperture is very little, percentage of open area is higher, and cavity is large, and acoustic resistance is large, and thus effective anechoic frequency bandwidth, remarkable to low frequency soundproof effect.
Two, smoothly by air-flow, keep aerodynamic property, reduce the pressure-losses.
Three, fixing supporting function is had to the centrifugally glass-wool of filling in pvc pipe.
Four, because stainless steel perforated pipe has the features such as lightweight, non-corrosive, longer service life.
Described safety guard 2 comprises the first PVC board 21 and the second PVC board 22 be arranged in parallel, and wherein said second PVC board 22 is positioned at and sound damper attachment side, adopts in pvc pipe to wear bolt 25 and connect between described first PVC board and the second PVC board.First PVC board and the combination of the second PVC board can prevent rainwater from entering sound damper.Described second PVC board has been arranged side by side the 3rd PVC board 23, perforate is provided with in the middle part of described second PVC board and the 3rd PVC board, the aperture of described perforate is greater than admission passage diameter, it is little that this is conducive to reducing the resistance of sound damper to air-flow, and the drag losses increased after making installation sound damper controls in the scope of allowing.In addition, between described second PVC board and the 3rd PVC board, be folded with PVC filter screen 24, can prevent fine impurities in outside atmosphere from entering muffler chamber, affect air inlet.
Claims (8)
1. a submersible aerator admission passage denoising device; comprise sound damper; described sound damper one end connects with admission passage; the other end connects with safety guard; it is characterized in that: the protective layer that described sound damper comprises stainless steel perforated pipe and is enclosed within outward outside stainless steel perforated pipe; be filled with centrifugally glass-wool between described stainless steel perforated pipe and protective layer, described centrifugally glass-wool is by high-density centrifugal glass wool layer and low density centrifugal glass wool layer is stacked is compounded to form.
2. a kind of submersible aerator admission passage denoising device according to claim 1, is characterized in that: described stainless steel perforated pipe is formed by the stainless steel soil weld that 0.8mm ~ 1.0mm is thick.
3. a kind of submersible aerator admission passage denoising device according to claim 1, is characterized in that: described stainless steel perforated pipe wraps up one deck woven fiber glass.
4. a kind of submersible aerator admission passage denoising device according to claim 1, is characterized in that: described protective layer is pvc pipe.
5. a kind of submersible aerator admission passage denoising device according to Claims 1-4 any one, it is characterized in that: described safety guard comprises the first PVC board and the second PVC board that be arranged in parallel, described second PVC board is positioned at and sound damper attachment side, adopts in pvc pipe and wear bolt-connection between described first PVC board and the second PVC board.
6. a kind of submersible aerator admission passage denoising device according to claim 5, it is characterized in that: described second PVC board has been arranged side by side the 3rd PVC board, be provided with perforate in the middle part of described second PVC board and the 3rd PVC board, the aperture of described perforate is greater than admission passage diameter.
7. a kind of submersible aerator admission passage denoising device according to claim 6, is characterized in that: be folded with PVC filter screen between described second PVC board and the 3rd PVC board.
8. a kind of submersible aerator admission passage denoising device according to claim 5, is characterized in that: described sound damper and admission passage union end are provided with the nipple of PVC hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164270.6U CN204490623U (en) | 2015-03-23 | 2015-03-23 | A kind of submersible aerator admission passage denoising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164270.6U CN204490623U (en) | 2015-03-23 | 2015-03-23 | A kind of submersible aerator admission passage denoising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204490623U true CN204490623U (en) | 2015-07-22 |
Family
ID=53569911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520164270.6U Expired - Fee Related CN204490623U (en) | 2015-03-23 | 2015-03-23 | A kind of submersible aerator admission passage denoising device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204490623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773851A (en) * | 2015-03-23 | 2015-07-15 | 川源(中国)机械有限公司 | Submerged aerator air-intake pipeline noise reducing apparatus |
-
2015
- 2015-03-23 CN CN201520164270.6U patent/CN204490623U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773851A (en) * | 2015-03-23 | 2015-07-15 | 川源(中国)机械有限公司 | Submerged aerator air-intake pipeline noise reducing apparatus |
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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: 20150722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |