CN107525201A - A kind of noise-reduction type VMC - Google Patents
A kind of noise-reduction type VMC Download PDFInfo
- Publication number
- CN107525201A CN107525201A CN201710716827.6A CN201710716827A CN107525201A CN 107525201 A CN107525201 A CN 107525201A CN 201710716827 A CN201710716827 A CN 201710716827A CN 107525201 A CN107525201 A CN 107525201A
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- bucket
- noise
- wall
- perforate
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of noise-reduction type VMC, includes new blower fan, and the outlet pipe of new blower fan is connected with a denoising structure；The denoising structure includes barrel-shaped interior noise reduction bucket；The one end open of interior noise reduction bucket, other end closing；One end of closing is provided with air inlet pipe, and air inlet pipe in interior noise reduction bucket with connecting；Also include and close at the outer encirclement bucket of interior noise reduction bucket parcel closing, the outer both ends for surrounding bucket, through the outer end face for surrounding bucket, other end is provided with escape pipe for air inlet pipe one end, and escape pipe connects with outer encirclement bucket；Designed by acoustic construction, realize the layering decay of gas pulsation, so as to effectively reduce vibrations noise, especially gas low frequency noise.
Description
Technical field
The present invention relates to a kind of noise-reduction type VMC.
Background technology
At present, indoor noise reduction more and more obtains the attention of people, especially the use of various VMCs at present, because
, in order to obtain preferable noise control, people design various denoising structures for this, wherein, carry out noise reduction exclusively for air pipe structure
Be particularly important.
The content of the invention
It is an object of the invention to overcome disadvantages described above, there is provided a kind of noise-reduction type VMC.
To achieve the above object, concrete scheme of the invention is as follows：A kind of noise-reduction type VMC, includes new blower fan,
The outlet pipe of new blower fan is connected with a denoising structure；The denoising structure includes barrel-shaped interior noise reduction bucket；Interior noise reduction
The one end open of bucket, other end closing；One end of closing is provided with air inlet pipe, and air inlet pipe in interior noise reduction bucket with connecting；Also include
By the outer encirclement bucket of interior noise reduction bucket parcel closing, the outer both ends for surrounding bucket are closed, and air inlet pipe one end surrounds the one of bucket through outer
End face, other end are provided with escape pipe, and escape pipe connects with outer encirclement bucket；
The first noise reduction wall, the second noise reduction wall higher than the first noise reduction wall are provided with around inwall, be higher than on the interior noise reduction bucket inwall
3rd noise reduction wall of the second noise reduction wall；The internal diameter of first noise reduction wall is less than the second noise reduction wall, the internal diameter of the second noise reduction wall is less than the
Three noise reduction walls；
First noise reduction wall is provided with multiple first perforates, the second noise reduction wall is provided with multiple second perforates；3rd noise reduction wall
It is provided with multiple 3rd perforates；4th noise reduction wall is provided with multiple 4th perforates.
Wherein, the first perforate on the first noise reduction wall is four, and four the first perforate arc length are set；On second noise reduction wall
The second perforate be four, and four the second perforate arc length are set；The 3rd perforate on 3rd noise reduction wall is four, and four the
Three perforate arc length are set.
Wherein, the surface of the interior noise reduction bucket is additionally provided with the 4th perforate.
Wherein, it is covered with film in the 4th perforate.
Beneficial effects of the present invention are：Designed by acoustic construction, the layering decay of gas pulsation is realized, so as to effectively drop
Low vibrations noise, especially gas low frequency noise.
Brief description of the drawings
Fig. 1 is the structure chart of the present invention；；
Fig. 2 is the stereogram of the denoising structure of the present invention；
Fig. 3 is the profile that the present invention is denoising structure；
Fig. 4 is the three-dimensional structure diagram of the interior noise reduction bucket of the present invention；
Description of reference numerals in Fig. 1 to Fig. 4：
Bucket is surrounded outside 1-；Noise reduction bucket in 2-；The perforates of 21- first；The perforates of 22- second；The perforates of 23- the 3rd；The perforates of 24- the 4th；31-
Escape pipe；32- air inlet pipe；The noise reduction walls of 41- first；The noise reduction walls of 42- second；The noise reduction walls of 43- the 3rd；The new blower fans of 5-.
Embodiment
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings, is not the reality the present invention
Apply scope and be confined to this.
As shown in Figures 1 to 4, a kind of noise-reduction type VMC described in the present embodiment, includes new blower fan 5, new blower fan
Outlet pipe be connected with a denoising structure；The denoising structure includes barrel-shaped interior noise reduction bucket 2；Interior noise reduction bucket 2
One end open, other end closing；One end of closing is provided with air inlet pipe 32, and air inlet pipe 32 in interior noise reduction bucket 2 with connecting；Also include
Interior noise reduction bucket 2 is wrapped up to the outer encirclement bucket 1 of closing, the outer both ends for surrounding bucket 1 are closed, and outer encirclement bucket is run through in the one end of air inlet pipe 32
1 end face, other end are provided with escape pipe 31, and escape pipe 31 connects with outer encirclement bucket 1；The inwall upper measurement of interior noise reduction bucket 2
The first noise reduction wall 41, the second noise reduction wall 42 higher than the first noise reduction wall 41, the higher than the second noise reduction wall 42 the 3rd are provided with around inwall
Noise reduction wall 43；The internal diameter of first noise reduction wall 41 is less than the second noise reduction wall 42, the internal diameter of the second noise reduction wall 42 is less than the 3rd noise reduction wall
43；First noise reduction wall 41 is provided with multiple first perforates 21, the second noise reduction wall 42 is provided with multiple second perforates 22；3rd
Noise reduction wall 43 is provided with multiple 3rd perforates 23；4th noise reduction wall is provided with multiple 4th perforates 24.
The present invention is designed by acoustic construction, realizes the layering decay of gas pulsation, so as to effectively reduce vibrations noise, especially
It is gas low frequency noise.
A kind of noise-reduction type VMC described in the present embodiment, the first perforate 21 on the first noise reduction wall 41 are four, and
Four arc length of the first perforate 21 are set；The second perforate 22 on second noise reduction wall 42 is four, and four arc length of the second perforate 22
Set；The 3rd perforate 23 on 3rd noise reduction wall 43 is four, and four arc length of the 3rd perforate 23 are set.
A kind of noise-reduction type VMC described in the present embodiment, the surface of the interior noise reduction bucket 2 are additionally provided with the 4th perforate 24.
A kind of noise-reduction type VMC described in the present embodiment, film is covered with the 4th perforate 24.By continuous
Experiment, it is found that, can be by intermediate frequency sound attenuation to a certain extent after it pastes film.
Described above is only the preferred embodiment of the present invention, therefore all structures described according to present patent application scope
Make, the equivalent change or modification that feature and principle are done, in the protection domain of present patent application.
Claims (5)
- A kind of 1. noise-reduction type VMC, it is characterised in that：Include new blower fan（5）, the outlet pipe of new blower fan is connected with one Individual denoising structure.
- A kind of 2. noise-reduction type VMC according to claim 1, it is characterised in that：The denoising structure includes drum The interior noise reduction bucket of shape（2）；Interior noise reduction bucket（2）One end open, the other end closing；One end of closing is provided with air inlet pipe（32）, enter Tracheae（32）With interior noise reduction bucket（2）Interior connection；Also include interior noise reduction bucket（2）Wrap up the outer encirclement bucket of closing（1）, outer encirclement Bucket（1）Both ends close, air inlet pipe（32）Outer encirclement bucket is run through in one end（1）End face, other end is provided with escape pipe （31）, escape pipe（31）With outer encirclement bucket（1）Connection；The interior noise reduction bucket（2）The first noise reduction wall is provided with inwall, around inwall（41）, higher than the first noise reduction wall（41）Second Noise reduction wall（42）, higher than the second noise reduction wall（42）The 3rd noise reduction wall（43）；First noise reduction wall（41）Internal diameter be less than second drop Make an uproar wall（42）, the second noise reduction wall（42）Internal diameter be less than the 3rd noise reduction wall（43）；First noise reduction wall（41）It is provided with multiple first perforates（21）, the second noise reduction wall（42）It is provided with multiple second perforates （22）；3rd noise reduction wall（43）It is provided with multiple 3rd perforates（23）；4th noise reduction wall is provided with multiple 4th perforates（24）.
- A kind of 3. noise-reduction type VMC according to claim 1, it is characterised in that：First noise reduction wall（41）On first Perforate（21）For four, and four the first perforates（21）Arc length is set；Second noise reduction wall（42）On the second perforate（22）For four It is individual, and four the second perforates（22）Arc length is set；3rd noise reduction wall（43）On the 3rd perforate（23）For four, and four the 3rd Perforate（23）Arc length is set.
- A kind of 4. noise-reduction type VMC according to claim 1, it is characterised in that：The interior noise reduction bucket（2）Surface It is additionally provided with the 4th perforate（24）.
- A kind of 5. noise-reduction type VMC according to claim 4, it is characterised in that：4th perforate（24）On paste There is film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710716827.6A CN107525201A (en) | 2017-08-21 | 2017-08-21 | A kind of noise-reduction type VMC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710716827.6A CN107525201A (en) | 2017-08-21 | 2017-08-21 | A kind of noise-reduction type VMC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107525201A true CN107525201A (en) | 2017-12-29 |
Family
ID=60681738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710716827.6A Withdrawn CN107525201A (en) | 2017-08-21 | 2017-08-21 | A kind of noise-reduction type VMC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107525201A (en) |
-
2017
- 2017-08-21 CN CN201710716827.6A patent/CN107525201A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171229 |
|
| WW01 | Invention patent application withdrawn after publication |