CN2747387Y - Suction muffle for blower fan - Google Patents
Suction muffle for blower fan Download PDFInfo
- Publication number
- CN2747387Y CN2747387Y CN 200420097776 CN200420097776U CN2747387Y CN 2747387 Y CN2747387 Y CN 2747387Y CN 200420097776 CN200420097776 CN 200420097776 CN 200420097776 U CN200420097776 U CN 200420097776U CN 2747387 Y CN2747387 Y CN 2747387Y
- Authority
- CN
- China
- Prior art keywords
- shell
- blower fan
- hush pipe
- tube
- air inlet
- 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
Links
Abstract
The utility model provides an air suction muffler for blower fans, comprising a case and an upper cover arranged on the top of the case. The case is respectively provided with an air inlet duct and an air exhaust duct. The interior of the case is connected with an inner silencing cylinder. The inner silencing cylinder is corresponded with the air exhaust duct. A filter cylinder is arranged between the air inlet duct and the inner silencing cylinder in the case. An outer silencing cylinder is arranged between the inside wall of the case and the air inlet duct in the case. In addition, the top of the outer silencing cylinder is contacted with the upper part of the filter cylinder. The air suction muffler for blower fans can solve the problems that the structures of existing like products are unreasonable, the heights are too high, the existing like products are difficult to be arranged on blower fans, and the loss of the passing wind pressure is too much.
Description
Technical field
The utility model relates to blower fan silencer technical field.
Background technique
Be widely used in the baffler on the industrial fan, its structure mostly be filtrating equipment and silencer for vertically rearranging, it is to filter entering wind by filter earlier when work, and then carries out noise reduction through baffler to entering wind.There is following shortcoming in the baffler of this kind form in real work: one, because of vertically the arranging structure height is higher, be not easy on blower fan, install, and if will make the erasure effect ideal, silencer also will extend, so cause the height of baffler higher, because of it highly is subjected to the restriction of fabricating yard, Fan Equipment, if it is then relatively poor to shorten the height erasure effect of silencer; Two, the noise reduction filter core is the sponge tube, and wind is by having increased the pressure loss thereafter.
Summary of the invention
The utility model provides a kind of blower fan absorbing silencer, and it can solve highly higher because of unreasonable structure that prior art exists, and is not easy to install on blower fan the bigger problem of wind pressure loss that reaches process.
The purpose of this utility model is achieved through the following technical solutions: the blower fan absorbing silencer, it comprises shell and is installed in the loam cake of cover top portion, shell is provided with air inlet duct and exhaust passage respectively, hush pipe in connecting in the shell, interior hush pipe is corresponding with the exhaust passage, between the cartridge filter installation air inlet duct and interior hush pipe in the enclosure, between the outer hush pipe installation air inlet duct and outer casing inner wall in the enclosure, and outer hush pipe top contacts with cartridge filter top.
For further realizing the purpose of this utility model, also can finish by the following technical programs: interior hush pipe comprises barrel shell and the wire netting tube that is interconnected with one another, and between barrel shell and the wire netting tube sound-absorbing tube is arranged.Outer hush pipe comprises wire netting tube and sound-absorbing tube, and the sound-absorbing tube contacts with outer casing inner wall, and the wire netting tube is connected with shell.Outer casing underpart connects several air intake pipes, and air intake pipe is corresponding with air inlet duct.The barrel shell top connects press strip, and press strip connecting screw rod, screw rod pass behind the loam cake and screw device and be threaded mutually.Shell connects and the corresponding connecting tube in exhaust passage.
The beneficial effect that the utility model can produce: because of the level in the hush pipe outside in cartridge filter is sleeved on to arrangement mode, and hush pipe outside one of the suit again in the cartridge filter outside, make enter wind earlier through noise reduction, filtration, after noise reduction is handled again, its noise reduces greatly, it can strengthen the noise reduction distance, can not increase height of the present utility model again, on blower fan, install very convenient; Two, inside and outside hush pipe is inboard adopts the wire netting cartridge form, so significantly reduced wind through thereafter the pressure loss; Three, connect several air intake pipes on the shell, it can lower the noise that enters wind to a certain extent.Extensive use of the present utility model can produce tangible society, economic benefit.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Embodiment
Blower fan absorbing silencer of the present utility model, it comprises shell 1 and is installed in the loam cake 2 at shell 1 top, shell 1 is provided with air inlet duct 13 and exhaust passage 14 respectively, hush pipe in connecting in the shell 1, interior hush pipe is corresponding with exhaust passage 14, cartridge filter 10 is installed between air inlet duct 13 and the interior hush pipe in the shell 1, and outer hush pipe is installed between the shell 1 interior air inlet duct 13 and shell 1 inwall, and outer hush pipe top contacts with cartridge filter 10 tops.Interior hush pipe comprises barrel shell 3 and the wire netting tube 5 that is interconnected with one another, and between barrel shell 3 and the wire netting tube 5 sound-absorbing tube 4 is arranged.Outer hush pipe comprises wire netting tube 11 and sound-absorbing tube 12, and sound-absorbing tube 12 contacts with shell 1 inwall, and wire netting tube 11 is connected with shell 1.Shell 1 bottom connects several air intake pipes 9, and air intake pipe 9 is corresponding with air inlet duct 13.Barrel shell 3 tops connect press strip 8, and press strip 8 connecting screw rods 7, screw rod 7 pass loam cake 2 backs and screw device 6 and be threaded mutually.Shell 1 connects and exhaust passage 14 corresponding connecting tubes 15.
During making, process various component assemblings by above-mentioned requirements and get final product.During use, connecting tube of the present utility model 15 is connected with blower fan to get final product.During blower fan work, wind enters in the shell 1 from several air intake pipes 9, handle through the wire netting tube 11 and 12 noise reductions of sound-absorbing tube of outer hush pipe earlier, filter through filter cylinder 10 again, and then handle through the wire netting tube 5 of interior hush pipe and 4 noise reductions of sound-absorbing tube, that is: enter wind and handle the laggard blower fan of going into through noise reduction, filtration, the noise reduction of noise reduction two-stage.
Technological scheme described in the utility model is not limited only to the mode of execution of present embodiment record, can also have other mode of execution to finish the technical solution of the utility model.
The technology that the utility model is not described in detail partly is known technology.
Claims (6)
1, blower fan absorbing silencer, it comprises shell (1) and is installed in the loam cake (2) at shell (1) top, shell (1) is provided with air inlet duct (13) and exhaust passage (14) respectively, it is characterized in that: hush pipe in connecting in the shell (1), interior hush pipe is corresponding with exhaust passage (14), cartridge filter (10) is installed between shell (1) the interior air inlet duct (13) and interior hush pipe, outer hush pipe is installed between shell (1) the interior air inlet duct (13) and shell (1) inwall, and outer hush pipe top contacts with cartridge filter (10) top.
2, blower fan absorbing silencer according to claim 1 is characterized in that: interior hush pipe comprises barrel shell (3) and the wire netting tube (5) that is interconnected with one another, and between barrel shell (3) and the wire netting tube (5) sound-absorbing tube (4) is arranged.
3, blower fan absorbing silencer according to claim 1 is characterized in that: outer hush pipe comprises wire netting tube (11) and sound-absorbing tube (12), and sound-absorbing tube (12) contacts with shell (1) inwall, and wire netting tube (11) is connected with shell (1).
4, blower fan absorbing silencer according to claim 1 is characterized in that: shell (1) bottom connects several air intake pipes (9), and air intake pipe (9) is corresponding with air inlet duct (13).
5, blower fan absorbing silencer according to claim 1 and 2 is characterized in that: barrel shell (3) top connects press strip (8), and press strip (8) connecting screw rod (7), screw rod (7) pass loam cake (2) back and screw device (6) and be threaded mutually.
6, blower fan absorbing silencer according to claim 1 is characterized in that: shell (1) connects and the corresponding connecting tube in exhaust passage (14) (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420097776 CN2747387Y (en) | 2004-11-18 | 2004-11-18 | Suction muffle for blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420097776 CN2747387Y (en) | 2004-11-18 | 2004-11-18 | Suction muffle for blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2747387Y true CN2747387Y (en) | 2005-12-21 |
Family
ID=35707926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420097776 Expired - Fee Related CN2747387Y (en) | 2004-11-18 | 2004-11-18 | Suction muffle for blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2747387Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864108A (en) * | 2015-01-22 | 2016-08-17 | 中国科学院声学研究所 | Silencer for draught fan air inlet |
| CN114776636A (en) * | 2022-04-08 | 2022-07-22 | 中国一冶集团有限公司 | Sound absorption and noise reduction device for vertical water pump and installation method thereof |
-
2004
- 2004-11-18 CN CN 200420097776 patent/CN2747387Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864108A (en) * | 2015-01-22 | 2016-08-17 | 中国科学院声学研究所 | Silencer for draught fan air inlet |
| CN105864108B (en) * | 2015-01-22 | 2018-08-07 | 中国科学院声学研究所 | A kind of air inlet silencer |
| CN114776636A (en) * | 2022-04-08 | 2022-07-22 | 中国一冶集团有限公司 | Sound absorption and noise reduction device for vertical water pump and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051221 Termination date: 20121118 |