CN213116873U - Silencer for fan outlet - Google Patents
Silencer for fan outlet Download PDFInfo
- Publication number
- CN213116873U CN213116873U CN202021485841.3U CN202021485841U CN213116873U CN 213116873 U CN213116873 U CN 213116873U CN 202021485841 U CN202021485841 U CN 202021485841U CN 213116873 U CN213116873 U CN 213116873U
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- spoiler
- fan
- amortization
- pipe
- cover
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- 230000003584 silencer Effects 0.000 title claims description 10
- 230000030279 gene silencing Effects 0.000 claims abstract description 52
- 229920000742 Cotton Polymers 0.000 claims abstract description 16
- 230000009467 reduction Effects 0.000 claims abstract description 5
- 238000009423 ventilation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 7
- 230000001743 silencing effect Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model belongs to fan equipment field especially is fan export silencing device, including the fan, one side of fan is provided with the fan pipe, and one side of fan pipe is provided with the amortization cover, and one side that the amortization cover is close to the fan mouth is provided with the fastener, and the inside of amortization cover is provided with the amortization body, and the inner wall of amortization body is provided with inhales the sound cotton, and the inside of amortization body has from left to right set gradually flow distribution plate, first spoiler, second spoiler and third spoiler. The utility model discloses a noise reduction cover that sets up outside the body can carry out the effective syllable-dividing effect in first stage, through setting up the flow distribution plate, can carry out the layering to the air current, provides the stability of air current, adopts different cross sections through setting up first expansion chamber and second expansion chamber, can make the air current reflect through the return air inlet, and the cotton turns into heat energy consumption, the effectual noise cancelling effect that improves the silencing device second stage with the frictional energy of inhaling of setting up through the body inner wall.
Description
Technical Field
The utility model relates to a fan equipment technical field specifically is fan export silencing device.
Background
The blower is a traditional Chinese habit for gas compression and gas conveying machinery, and generally comprises a ventilator, a blower and a wind driven generator, main structural components of the blower are an impeller, a casing, an air inlet, a support, a motor, a belt pulley, a coupling, a transmission part and the like, the blower is a mechanical device which mainly depends on input mechanical energy to improve gas pressure and send gas, is driven fluid machinery universal equipment and is widely applied to various industries such as electric power, mining industry, machinery, metallurgy, chemical industry and the like.
The prior art devices have the following problems:
1. the noise of high decibel is obvious to the injury of human body, and general fan mouth all direct mount is outside the wall body, directly carries out the outer emission to the air current through the wind gap, and the noise is very big, and the mode of making an uproar is fallen in the tradition is simple, still needs the artifical noise control earplug of taking, can not effectively go on noise reduction on the sound source, and is great to personnel's injury.
2. The common silencer is not arranged by layers for the air flow, so that the instability of the air flow fluid is easily caused, the air flow impact occurs, the silencer cannot effectively carry out silencing treatment, and the service life of the silencer is easily reduced greatly.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a fan export silencing device has solved and can't go on effectively falling the noise of fan export and fall, can cause the injury that the staff is human, and has caused the problem of sound source pollution to environmental protection, also solve not effectively to dredge the flow setting to the air current of air outlet, cause fluidic unstability easily, take place the impact that the air current caused at the silencing device inner wall, and on the contrary can not reach effective noise cancelling effect, also can make silencing device's life greatly reduced's problem.
In order to achieve the above object, the utility model provides a following technical scheme: fan export silencing device, including the fan, one side of fan is provided with the fan pipe, one side of fan pipe is provided with the amortization cover, one side that the amortization cover is close to the fan mouth is provided with the fastener, the inside of amortization cover is provided with the amortization body, the inner wall of amortization body is provided with inhales the sound cotton, the inside of amortization body has from left to right set gradually flow distribution plate, first spoiler, second spoiler and third spoiler, it is provided with first blast pipe to run through on first spoiler and the second spoiler, it is provided with the second blast pipe to run through on second spoiler and the third spoiler, form first expansion chamber between the inner wall of second spoiler, third spoiler and amortization cover, form second expansion chamber between the inner wall of first spoiler, second spoiler and amortization cover
The efficient firm connection can be realized through the outlet pipe and the silencing cover through the fastener, the silencing treatment in the first stage is conveniently carried out, the silencing pipe body in the silencing cover is connected through a sleeving method, in order to stabilize the relationship between the outlet pipe and the silencing cover and realize the stable connection of air flow silencing, then the layering can be effectively realized on the air flow through the air flow plate arranged on one side of the air port pipe, the stability of the fluid is improved, the first exhaust pipe penetrates through the first spoiler and the second spoiler to carry out the conveying function of the air flow, the flowing speed of the air flow is stabilized, the reflection can be carried out in the cross section of the inner cavity through the first expansion chamber, the air flow can be effectively sealed through the third spoiler, the leakage problem is prevented, the sound-absorbing cotton is arranged on the inner wall, the friction energy can be converted into the heat energy consumption according to the attribute of the sound-absorbing cotton, and the efficient silencing effect, then through the return-air inlet that sets up in the air current accessible second spoiler in the first expansion chamber, can carry out the secondary and return the cage and get into the second expansion chamber, can reflect the consumption and carry out amortization once more, carry out through the gas after having handled through the second blast pipe and discharge the amortization air current that has handled well outward, can accomplish the noise cancelling effect of fan export effectively, and is simple effective, is applicable to the market demand.
As a preferred technical scheme of the utility model, fan and wind gap pipe formula structure as an organic whole, the quantity of fastener is two sets of, the amortization cover passes through fastener and wind gap pipe screwed connection, the amortization body cup joints with the amortization cover is fixed, inhale cotton evenly distributed in amortization body inner wall of sound.
As an optimal technical scheme of the utility model, the flow distribution plate is the equidistance hole sieve, flow distribution plate and amortization body fixed connection.
As an optimal technical scheme of the utility model, first spoiler, second spoiler, third spoiler size are the same, first spoiler, second spoiler, third spoiler are not equidistance distribution in the hush pipe body.
As a preferred technical scheme of the utility model, the return air inlet is circular recess, the return air inlet runs through the second spoiler, first expansion chamber is ventilated through return air inlet and second expansion chamber and is connected.
Compared with the prior art, the utility model provides a fan export silencing device possesses following beneficial effect:
1. this fan export silencing device through setting up the fastener, can effectively consolidate the amortization cover and stably connect, realizes that the amortization cover carries out the amortization of first stage, distributes in amortization body inner wall through the amortization cotton, can adopt the amortization material to convert the principle of heat energy consumption into with the frictional energy, effectively falls the noise cancelling effect of making an uproar, cup joints in amortization cover and amortization body realization, and the stability between the multiplicable two improves effectual noise cancelling effect.
2. This fan export silencing device through setting up the flow distribution plate, can realize carrying out the layering to the fluid, strengthens the stability that the air current flows, improves noise cancelling effect and protects silencing device's life.
3. This fan export silencing device through setting up first spoiler, second spoiler and third spoiler, can carry out the effective wall to the air current, can realize that first expansion chamber and second expansion chamber adopt different cross sections to reflect, conveniently inhale sound material and accomplish the amortization and fall the noise treatment.
4. This fan export silencing device through setting up the return air mouth, can regard as the transfer passage of air current, carries out the secondary treatment to air current amortization returning cage, realizes the effect of reflection transport.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the structure of the silencing tube of the present invention.
In the figure: 1. a fan; 2. a tuyere pipe; 3. a sound deadening hood; 4. a fastener; 5. a silencing pipe body; 6. sound-absorbing cotton; 7. a flow distribution plate; 8. a first spoiler; 9. a first exhaust pipe; 10. a second spoiler; 11. an air return port; 12. a second exhaust pipe; 13. a first expansion chamber; 14. a third spoiler; 15. a second expansion chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a fan outlet silencer according to this embodiment includes a fan 1, a fan pipe 2 is disposed on one side of the fan 1, a silencing cover 3 is disposed on one side of the fan pipe 2, a fastener 4 is disposed on one side of the silencing cover 3 close to a fan port, a silencing pipe 5 is disposed inside the silencing cover 3, sound absorbing cotton 6 is disposed on an inner wall of the silencing pipe 5, a splitter plate, a first spoiler 8, and a second spoiler 10 are sequentially disposed inside the silencing pipe 5 from left to right, and a third spoiler 14, wherein a first exhaust pipe is arranged on the first spoiler 8 and the second spoiler 10 in a penetrating manner, a second exhaust pipe 12 is arranged on the second spoiler 14 and the third spoiler 14 in a penetrating manner, a first expansion chamber 13 is formed among the second spoiler 10, the third spoiler 14 and the inner wall of the silencing cover 3, and a second expansion chamber 15 is formed among the first spoiler 8, the second spoiler 10 and the inner wall of the silencing cover 3.
The sound attenuation pipe body 5 in the sound attenuation cover 3 can effectively realize layering on gas flow through a sleeving method for stabilizing the relationship and interaction between the sound attenuation pipe body and the sound attenuation cover 3 and conveniently perform sound attenuation treatment in a first stage, then an air flow plate 7 arranged on one side of the air port pipe 2 can effectively realize layering on the gas flow to improve the stability of fluid, a first exhaust pipe 9 penetrates through a first baffle plate 8 and a second baffle plate 10 to realize the conveying effect of the gas flow, the flowing speed of the gas flow is stabilized, the gas flow can be reflected in the cross section of an inner cavity through a first expansion chamber 13, the gas flow can be effectively sealed through a third baffle plate 14 to prevent the leakage problem, sound absorption cotton 6 arranged on the inner wall can convert friction energy into heat energy consumption according to the attribute of the sound absorption cotton 6, thereby realize effectual noise cancelling effect, then through the return air inlet 11 that sets up in the air current accessible second spoiler 10 in the first expansion chamber 13, can carry out the secondary and return the cage and get into second expansion chamber 15, can carry out reflection consumption and carry out amortization once more, carry out through the gas after having handled and discharge outward the amortization air current that has handled through second blast pipe 12, can accomplish the noise cancelling effect of fan 1 export effectively, and is simple effective, is applicable to the market demand.
In this embodiment, fan 1 and 2 formula structures as an organic whole of tuyere pipe, the quantity of fastener 4 is two sets of, and amortization cover 3 passes through fastener 4 and 2 screwed connection of tuyere pipe, and amortization body 5 cup joints with amortization cover 3 is fixed, inhales 6 evenly distributed in 5 inner walls of amortization body of sound. The fastener 4 is arranged, so that the stable connection of the silencing cover 3 can be effectively reinforced, the silencing effect of the silencing cover 3 in the first stage is realized, the silencing cotton 6 is distributed on the inner wall of the silencing pipe body 5, the principle that the friction energy is converted into heat energy consumption by silencing materials can be adopted, the effective noise reduction and silencing effect is realized, the silencing cover 3 and the silencing pipe body 5 are sleeved, the stability between the silencing cover 3 and the silencing pipe body 5 can be increased, and the effective silencing effect is improved; the flow distribution plate 7 is an isometric hole sieve, and the flow distribution plate 7 is fixedly connected with the silencing pipe body 5. By arranging the splitter plate 7, the layering of the fluid can be realized, the stability of the airflow flow is enhanced, the silencing effect is improved, and the service life of the silencing device is prolonged; the first spoiler 8, the second spoiler 10 and the third spoiler 14 are the same in size, the first spoiler 8, the second spoiler 10 and the third spoiler 14 are distributed in the silencing pipe body 5 at unequal intervals, the first spoiler 8, the second spoiler 10 and the third spoiler 14 are arranged, so that the airflow can be effectively separated, the first expansion chamber 13 and the second expansion chamber 15 can be reflected by adopting different cross sections, and the silencing and noise reduction treatment of a sound-absorbing material is facilitated; the air return port 11 is a circular groove, the air return port 11 penetrates through the second spoiler 10, and the first expansion chamber 13 is in ventilation connection with the second expansion chamber 15 through the air return port 11. Through setting up return air inlet 11, can regard as the transfer passage of air current, carry out the secondary treatment to air current amortization returning cage, realize the effect of reflection transport.
The utility model discloses a theory of operation and use flow: firstly, the user carries out the threaded connection of the tuyere pipe 2 of the fan 1 and the silencing cover 3 through the fastener 4, the silencing treatment of the first stage can be conveniently carried out through the silencing cover 3, the silencing pipe body 5 in the silencing cover 3 is connected through a sleeving method, in order to stabilize the relation between the two, the interaction is realized, the stable connection of the air flow silencing setting is realized, then the layering of the air flow can be effectively realized through the air flow plate 7 arranged at one side of the tuyere pipe 2, the stability of the fluid is improved, the conveying function of the air flow can be carried out through the first exhaust pipe 9 penetrating through the first spoiler 8 and the second spoiler 10, the flowing speed of the air flow is stabilized, the reflection can be carried out in the cross section of the inner cavity through the first expansion chamber 13, the effective closing of the air flow can be carried out through the third spoiler 14, the leakage problem is prevented, the sound absorbing cotton 6 arranged on the inner wall, realize the heat consumption to frictional energy conversion according to the attribute of inhaling cotton 6, thereby realize effectual noise cancelling effect, then return the gas port 11 that sets up in the air current accessible second spoiler 10 through in the first expansion chamber 13, can carry out the secondary and return the cage and get into second expansion chamber 15, can carry out reflection consumption and carry out amortization processing once more, gas through after having handled carries out through second blast pipe 12 and carries out outer emission to the amortization air current that has handled, can accomplish the noise cancelling effect of fan 1 export effectively, and is simple and effective, and the utility model is suitable for market demand.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. Fan export silencing device, including the fan, its characterized in that: one side of fan is provided with the fan pipe, one side of fan pipe is provided with the amortization cover, one side that the amortization cover is close to the fan mouth is provided with the fastener, the inside of amortization cover is provided with the amortization body, the inner wall of amortization body is provided with inhales the sound cotton, the inside of amortization body has from left to right set gradually flow distribution plate, first spoiler, second spoiler and third spoiler, it is provided with first blast pipe to run through on first spoiler and the second spoiler, it is provided with the second blast pipe to run through on second spoiler and the third spoiler, form first expansion chamber between the inner wall of second spoiler, third spoiler and amortization cover, form the second expansion chamber between the inner wall of first spoiler, second spoiler and amortization cover.
2. The fan outlet silencer of claim 1, further comprising: the utility model discloses a noise reduction pipe, including fan and wind gap pipe formula structure as an organic whole, the quantity of fastener is two sets of, the amortization cover passes through fastener and wind gap pipe screwed connection, the amortization body cup joints with the amortization cover is fixed, inhale cotton evenly distributed in amortization body inner wall of sound.
3. The fan outlet silencer of claim 1, further comprising: the flow distribution plate is an equidistance hole sieve and is fixedly connected with the silencing pipe body.
4. The fan outlet silencer of claim 1, further comprising: the first spoiler, the second spoiler and the third spoiler are the same in size, and are distributed in the silencing pipe body at unequal intervals.
5. The fan outlet silencer of claim 1, further comprising: the second spoiler is provided with a return air port, the return air port is a circular groove, the return air port penetrates through the second spoiler, and the first expansion chamber is in ventilation connection with the second expansion chamber through the return air port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021485841.3U CN213116873U (en) | 2020-07-24 | 2020-07-24 | Silencer for fan outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021485841.3U CN213116873U (en) | 2020-07-24 | 2020-07-24 | Silencer for fan outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213116873U true CN213116873U (en) | 2021-05-04 |
Family
ID=75680922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021485841.3U Active CN213116873U (en) | 2020-07-24 | 2020-07-24 | Silencer for fan outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213116873U (en) |
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2020
- 2020-07-24 CN CN202021485841.3U patent/CN213116873U/en active Active
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