CN105626591A - Built-in type draught fan silencer - Google Patents
Built-in type draught fan silencer Download PDFInfo
- Publication number
- CN105626591A CN105626591A CN201610167131.8A CN201610167131A CN105626591A CN 105626591 A CN105626591 A CN 105626591A CN 201610167131 A CN201610167131 A CN 201610167131A CN 105626591 A CN105626591 A CN 105626591A
- Authority
- CN
- China
- Prior art keywords
- straight tube
- built
- straight barrel
- blower fan
- threaded rod
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a built-in type draught fan silencer. The built-in type draught fan silencer comprises an outer straight barrel and an inner straight barrel, micro-holes are densely distributed in the inner straight barrel, sound absorption cotton is arranged between the outer straight barrel and the inner straight barrel, and annular sealing plates are arranged at the two ends of the outer straight barrel and the two ends of the inner straight barrel for fixation; an air inlet barrel is concentrically arranged in an inner hole of the annular sealing plate at one end of the outer straight barrel, the front end of the air inlet barrel extends out of the outer straight barrel, and a plurality of rotation devices are arranged on the outer circle of the front end of the air inlet barrel; and each rotation device is provided with a threaded rod, and a lifting supporting sleeve is arranged at the end of each threaded rod. By means of the above manner, according to the built-in type draught fan silencer, the lifting supporting sleeves can abut against the inner wall of a draught fan pipe, the outer straight barrel is fixed into the draught fan pipe for air flow noise reduction work, leakage of air flow is effectively avoided, the structure is simple, and mounting and demounting are relatively convenient.
Description
Technical field
The present invention relates to sound damper field, particularly relate to a kind of built-in blower fan sound damper.
Background technology
The Application comparison of blower fan is extensive, it is possible to carries out ventilating, dispel the heat, gas compression and mass transport, has outfit in a lot of factory, mall.
The running at a high speed of the need of work of blower fan, could drive the flow at high speed of gas to carry out relevant work, and during intake and exhaust, the wind of high speed winds miscarriage life is made an uproar all bigger, it is necessary to carries out corresponding noise reduction process, reduces noise pollution. Common sound damper is connected on pipeline usually, needs to consider stopping property, complex structure, difficulty of construction height, it is necessary to improve during connection.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of built-in blower fan sound damper, simplifies and connects structure, avoids gas leakage problem.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of built-in blower fan sound damper, comprise: outside straight tube and inner straight tube, described inner straight tube is arranged on the inside of outside straight tube with one heart, described inner straight tube is densely covered with micropore, it is provided with acoustical cotton between described outside straight tube and inner straight tube, the two ends of described outside straight tube and inner straight tube are respectively arranged with annular seal plate and are fixed, the interior hole of the annular seal plate of described outside straight tube one end is provided with an air intake cylinder with one heart, outside the front end of described air intake cylinder extends to outside straight tube, the front end cylindrical of described air intake cylinder is provided with several turning devices, described turning device is respectively arranged with a threaded rod, described threaded rod end is respectively arranged with a lifting and supports sleeve, the top that described lifting supports sleeve is respectively arranged with slipmat.
In a preferred embodiment of the present invention, described several turning device annular arrays are distributed on the front end cylindrical of air intake cylinder.
In a preferred embodiment of the present invention, described slipmat is respectively rubber pad.
In a preferred embodiment of the present invention, described lifting supports in sleeve and is provided with the threaded hole corresponding with threaded rod.
In a preferred embodiment of the present invention, described threaded rod is perpendicular with the front end cylindrical of air intake cylinder respectively.
In a preferred embodiment of the present invention, described annular seal plate is provided with and supports orienting sleeve corresponding to sleeve with lifting.
The invention has the beneficial effects as follows: a kind of built-in blower fan sound damper that the present invention points out, utilize the rotation of threaded rod, lifting can be supported sleeve is against on the inwall of Fan pipeline, what make that outside straight tube is fixed in Fan pipeline to carry out air-flow falls work of making an uproar, effectively avoid leaking of air-flow, structure is simple, mounts and dismounts more convenient.
Accompanying drawing explanation
In order to the technical scheme being illustrated more clearly in the embodiment of the present invention, below the accompanying drawing used required in embodiment being described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of a kind of built-in better embodiment of blower fan sound damper one of the present invention.
Embodiment
It is clearly and completely described to the technical scheme in the embodiment of the present invention below, it is clear that described embodiment is only a part of embodiment of the present invention, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1, the embodiment of the present invention comprises:
A kind of built-in blower fan sound damper, comprise: outside straight tube 1 and inner straight tube 3, described inner straight tube 3 is arranged on the inside of outside straight tube 1 with one heart, described inner straight tube 3 is densely covered with micropore, being provided with acoustical cotton 2 between described outside straight tube 1 and inner straight tube 3, the air-flow in pipeline can be carried out absorbing sound and lowering noise process by acoustical cotton 2.
The two ends of described outside straight tube 1 and inner straight tube 3 are respectively arranged with annular seal plate 5 and are fixed, the interior hole of the annular seal plate 5 of described outside straight tube 1 one end is provided with an air intake cylinder 4 with one heart, outside the front end of described air intake cylinder 4 extends to outside straight tube 1, the front end cylindrical of described air intake cylinder 4 is provided with several turning devices 6, being respectively arranged with a threaded rod 7 on described turning device 6, described threaded rod 7 end is respectively arranged with a lifting and supports sleeve 8. Described lifting supports in sleeve 8 and is provided with the threaded hole corresponding with threaded rod 7, utilize the rotation of threaded rod 7, lifting can be supported sleeve 8 is against on the inwall of Fan pipeline so that outside straight tube 1 is fixed in Fan pipeline, and what facilitate that acoustical cotton 2 carries out air-flow falls work of making an uproar.
The top that described lifting supports sleeve 8 is respectively arranged with slipmat 9, and described slipmat 9 is respectively rubber pad, and slipmat 9 can increase and the frictional force of Fan pipeline inwall, avoids loosening problem. Described several turning devices 6 annular array is distributed on the front end cylindrical of air intake cylinder 4, uniform force, keeps the concentricity of air intake cylinder 4 with Fan pipeline.
Described threaded rod 7 is perpendicular with the front end cylindrical of air intake cylinder 4 respectively, described annular seal plate 5 is provided with and supports orienting sleeve 51 corresponding to sleeve 8 with lifting, and orienting sleeve 51 improves the stability that lifting supports sleeve 8 and moves around and regulate.
In sum, a kind of built-in blower fan sound damper that the present invention points out, it is possible to be fixed in pipeline, air-flow is carried out noise reduction process, reduces the noise pollution of blower fan, easy for installation, avoids the problem of sound damper junction gas leakage, and subject range is extensive.
The foregoing is only embodiments of the invention; not thereby the patent scope of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, all it is included in the scope of patent protection of the present invention with reason.
Claims (6)
1. a built-in blower fan sound damper, comprise: outside straight tube and inner straight tube, described inner straight tube is arranged on the inside of outside straight tube with one heart, it is characterized in that, described inner straight tube is densely covered with micropore, it is provided with acoustical cotton between described outside straight tube and inner straight tube, the two ends of described outside straight tube and inner straight tube are respectively arranged with annular seal plate and are fixed, the interior hole of the annular seal plate of described outside straight tube one end is provided with an air intake cylinder with one heart, outside the front end of described air intake cylinder extends to outside straight tube, the front end cylindrical of described air intake cylinder is provided with several turning devices, described turning device is respectively arranged with a threaded rod, described threaded rod end is respectively arranged with a lifting and supports sleeve, the top that described lifting supports sleeve is respectively arranged with slipmat.
2. built-in blower fan sound damper according to claim 1, it is characterised in that, described several turning device annular arrays are distributed on the front end cylindrical of air intake cylinder.
3. built-in blower fan sound damper according to claim 1, it is characterised in that, described slipmat is respectively rubber pad.
4. built-in blower fan sound damper according to claim 1, it is characterised in that, described lifting supports in sleeve and is provided with the threaded hole corresponding with threaded rod.
5. built-in blower fan sound damper according to claim 1, it is characterised in that, described threaded rod is perpendicular with the front end cylindrical of air intake cylinder respectively.
6. built-in blower fan sound damper according to claim 1, it is characterised in that, described annular seal plate is provided with and supports orienting sleeve corresponding to sleeve with lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610167131.8A CN105626591A (en) | 2016-03-23 | 2016-03-23 | Built-in type draught fan silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610167131.8A CN105626591A (en) | 2016-03-23 | 2016-03-23 | Built-in type draught fan silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105626591A true CN105626591A (en) | 2016-06-01 |
Family
ID=56041831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610167131.8A Pending CN105626591A (en) | 2016-03-23 | 2016-03-23 | Built-in type draught fan silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105626591A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115573950A (en) * | 2022-09-05 | 2023-01-06 | 无锡宜友机电制造有限公司 | Noise reduction device and method for air suspension fan |
-
2016
- 2016-03-23 CN CN201610167131.8A patent/CN105626591A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115573950A (en) * | 2022-09-05 | 2023-01-06 | 无锡宜友机电制造有限公司 | Noise reduction device and method for air suspension fan |
| CN115573950B (en) * | 2022-09-05 | 2023-08-15 | 无锡宜友机电制造有限公司 | Noise reduction device and noise reduction method for air suspension fan |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160601 |
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| RJ01 | Rejection of invention patent application after publication |