CN208057527U - A kind of cabinet structure of the external silencer of high-speed centrifugal fan - Google Patents
A kind of cabinet structure of the external silencer of high-speed centrifugal fan Download PDFInfo
- Publication number
- CN208057527U CN208057527U CN201721869538.1U CN201721869538U CN208057527U CN 208057527 U CN208057527 U CN 208057527U CN 201721869538 U CN201721869538 U CN 201721869538U CN 208057527 U CN208057527 U CN 208057527U
- Authority
- CN
- China
- Prior art keywords
- plate
- external silencer
- mainframe
- muffler
- silencer
- 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.)
- Active
Links
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of cabinet structures of the external silencer of high-speed centrifugal fan, including mainframe, power control cabinet, inlet filter and host, lower leaf is arranged on the mainframe and power control cabinet, host is fixed in mainframe, exhaust outlet is equipped on the outer wall of mainframe, it further include small muffler plate, big muffler plate and external silencer, the external silencer is fixed on the outer wall of mainframe, inlet filter is set on external silencer, big muffler plate is fixedly connected in mainframe, and big muffler plate and inlet filter are arranged in parallel, the first gap is formed between the both ends of muffler plate and the inner wall of mainframe greatly；Two pieces of small muffler plates are set between big muffler plate and inlet filter, and the second gap is formed between two pieces of small muffler plates.The utility model is simple in structure, and noise elimination effect is good.
Description
Technical field：
The utility model is related to a kind of cabinet structures of the external silencer of high-speed centrifugal fan.
Background technology：
High-speed centrifugal fan uses the floating or empty floating axle of magnetic and holds and high-speed permanent magnetic synchronous motor technology mostly so that it is saved
Energy significant effect, is widely used in the industries such as medicine, environmental protection, chemical industry, oil.The cabinet structure of the wind turbine be divided into mainframe and
Power control cabinet two large divisions, the running speed of host is about 15000 revs/min~40000 revs/min in mainframe, the noise of wind turbine with
Based on medium-high frequency, if not carrying out noise reduction control to it, the work of on-site personnel and the life of neighbouring resident will be caused
Puzzlement, can influence the physical and mental health of people when serious.
Existing wind turbine cabinet shape is generally distributed in hexahedron, inlet filter and exhaust outlet in mainframe, machine
Cabinet door plate is welded using cold-reduced sheet, and fills single deadener, it is difficult to which the high-frequency noise for absorbing or blocking wind turbine to generate disappears
Sound effective value is undesirable.Host in wind turbine cabinet is the main source of noise source, and host and inlet filter
Directly communicate, be easy to spread out of from inlet filter by the noise that host is sent out and reach human ear, therefore, it is necessary to cabinet and
Gas channel between wind turbine host and inlet filter carries out noise-reducing design.
Utility model content：
The utility model is to provide a kind of high-speed centrifugal fan to solve the above-mentioned problems of the prior art
The cabinet structure of external silencer.
Technical solution used by the utility model has：A kind of cabinet knot of the external silencer of high-speed centrifugal fan
Structure, including mainframe, power control cabinet, inlet filter and host, lower leaf setting, host are fixed on the mainframe and power control cabinet
In in mainframe, it is equipped with exhaust outlet on the outer wall of mainframe, further includes small muffler plate, big muffler plate and external silencer, institute
It states external silencer to be fixed on the outer wall of mainframe, inlet filter is set on external silencer, and big muffler plate is fixedly connected
In mainframe, and big muffler plate and inlet filter are arranged in parallel, the both ends of big muffler plate and the inner wall of mainframe it
Between form the first gap；Two pieces of small muffler plates are set between big muffler plate and inlet filter, are formed between two pieces of small muffler plates
There is the second gap；
The external silencer includes filter adapter, V-type muffler plate and external silencer babinet, several V-types
It is fixed in external silencer babinet after muffler plate is overlapped mutually and by screw, filter adapter is fixed on external silencer
On the end face of babinet, inlet filter is fixed on filter adapter.
Further, the outside of the inlet filter is equipped with is equipped with fine filtering net and coarse filtration net successively.
Further, the side plate of the mainframe and the side plate of power control cabinet are all made of combined type acoustical panel, the combined type
Acoustical panel includes that cold-reduced sheet, macromolecule damping felt, acoustical cotton, non-woven fabrics and galvanized sheet, the macromolecule damp felt and cold-reduced sheet
Between by glue adhesion, after acoustical cotton is by non-woven wraps, paving is pressed on macromolecule damping felt, galvanized sheet and cold-reduced sheet it
Between be connected by screw.
Further, the galvanized sheet is equipped with several through-holes.
Further, the small muffler plate, big muffler plate, V-type muffler plate and external silencer babinet are all made of combined type
Acoustical panel is made.
Further, the filter adapter is made of cold-reduced sheet.
The utility model has the advantages that：
1. in the case where not changing the original size of cabinet, external silencer is consumed by traveling to fan inlet in cabinet
The noise energy at place creates a further reduction the noisiness of wind turbine entirety；
2. the V-type muffler plate in external silencer is designed using " V " type, extends the contact area of noise, enhance suction
Sound insulation effect；
3. the V-type muffler plate in external silencer is when mounted, upward, zinc-plated porous plate side downward, makes for cold-rolled steel sheet side
Noise is propagated downwards always in outlet port, and position when standing far from people where ear reduces influence of the noise to the sense of hearing；
4. external silencer babinet uses combined type noise elimination harden structure, noise is enclosed in a channel, further
Weaken the energy of noise；
5. external muffler desing inlet filter adapter with inlet filter in the prior art, it can be achieved that carry out nothing
Seam docking need not redesign original inlet filter, reduce the life of product when using external silencer
Produce cost；
It is mutually interconnected 6. external silencer includes external silencer babinet, V-type muffler plate and inlet filter adapter, three
It connects, forms an individual components, random combine can be carried out with the wind turbine of same type, can realize that modularization is installed, improve
Efficiency of assembling.
Description of the drawings：
Fig. 1 to Fig. 4 is the utility model structure chart.
Fig. 5 to Fig. 8 is the structure chart of external silencer in the utility model.
Fig. 9 and Figure 10 is the structure chart of combined type acoustical panel in the utility model.
Figure 11 is the structure chart of galvanized sheet in the utility model.
Specific implementation mode：
The utility model will be further described below with reference to the accompanying drawings.
As shown in Figure 1 to Figure 4, the utility model discloses a kind of cabinet structure of the external silencer of high-speed centrifugal fan, packet
Include mainframe 101, power control cabinet 102, inlet filter 63 and host 603, lower leaf on the mainframe 101 and power control cabinet 102
Setting, host 603 are fixed in mainframe 101, and exhaust outlet 36 is equipped on the outer wall of mainframe 101, further includes small muffler plate
601, big muffler plate 602 and external silencer 606, the external silencer 606 are fixed on the outer wall of mainframe 101, import
Filter 63 is set on external silencer 606, and big muffler plate 602 is fixedly connected in mainframe 101, and 602 He of big muffler plate
Inlet filter 63 is arranged in parallel, and the first gap is formed between the both ends and the inner wall of mainframe 101 of big muffler plate 602；
Two pieces of small muffler plates 601 are set between big muffler plate 602 and inlet filter 63, and the is formed between two pieces of small muffler plates 601
Two gaps.
Such as Fig. 5 to Fig. 8, external silencer 606 includes filter adapter 607, V-type muffler plate 608 and external silencer
Babinet 609 is fixed on after several V-type muffler plates 608 are overlapped mutually and by screw in external silencer babinet 609, mistake
Filter adapter 607 is fixed on the end face of external silencer babinet 609, and inlet filter 63 is fixed on filter adapter
On 607.
The outside of inlet filter 63 is equipped with is equipped with fine filtering net and coarse filtration net successively.
In conjunction with Fig. 9 to Figure 11, the side plate of mainframe 101 and the side plate of power control cabinet 102 are all made of combined type acoustical panel, should
Combined type acoustical panel includes that cold-reduced sheet 1, macromolecule damping felt 2, acoustical cotton 3, non-woven fabrics 4 and galvanized sheet 5, macromolecule damp felt 2
By glue adhesion between cold-reduced sheet 1, after acoustical cotton 3 is wrapped up by non-woven fabrics 4, paving is pressed on macromolecule damping felt 2, zinc-plated
It is connected by screw between plate 5 and cold-reduced sheet 1.
Cold-reduced sheet 1, is made of cold rolled carbon steel sheet, and thickness is 1.2~2.5mm, it is preferred to use 2.0mm.
Macromolecule damps felt 2, which is made of hot pressing, calendering process, and fire-retardant rank is B grades, surface density 2.0
~3.5kg/m2, it is preferred to use 3.0kg/m2, thickness is 1.0~3.0mm, preferably 2.0mm.
Foamed, polyester fiber cotton of mineral wool, mineral wool, polyurethanes etc. can be selected in acoustical cotton 3, the material, it is preferred to use ring
Class material polyester fiber cotton is protected, thickness is 30~80mm, and preferably 50mm, unit weight (volume density) is 26~50kg/m3, preferably
40kg/m3。
Non-woven fabrics 4, the preferably environmentally friendly off-white color polypropylene (PP) of material.
Galvanized sheet 5, thickness be 1.0mm~2.5mm, preferably 1.2mm, on galvanized sheet 5 be equipped with several through-holes 51, every piece
The ratio of area before the sum of area of all perforation circles of galvanized sheet 5 divided by entire plate are puncherless should be 23% or more, i.e.,
(0.25*π*d2* n)/(A1*B1) > 23%, wherein d are the diameter of through-hole 51, and S is adjacent 51 distance of center circle of through-hole of galvanized sheet
From, S=2d, and d=3~8mm, preferably d=5mm, n are the perforation number (as shown in Figure 4) of entire perforated plate, entire combined type
The thickness of acoustical panel is δ, δ=30~80mm, preferably 50mm.
When fan operation, gas passes through coarse filtration net and fine filtering net by air inlet, into external silencer 606, around
Excessive muffler plate 602 and small muffler plate 601 after rotary compression, are discharged from exhaust outlet 36 into host 603, reach downstream
User pipe, in the process, host 603 are Main Noise Sources, are radiated from the noise that it is generated to cabinet surrounding, and noise reaches
The path that inlet filter 63 exports reaches the path of host 603 just on the contrary, noise bypasses with air-flow from inlet filter 63
Large and small muffler plate is absorbed a part, then reaches external silencer 606, and into V-type muffler plate 608, noise energy is further
It is consumed, noisiness continues to decline.
Inlet filter 63 is mounted on the inlet filter adapter 607 of external silencer 606, filter adapter
607 are connected with external silencer babinet 609 by bolt, and external silencer 606 uses hexagon socket head cap screw by phase with cabinet 100
Even.
V-type muffler plate uses combined type noise reduction harden structure, the difference is that it has used two layers of sound-absorbing cotton structure, outside
It is vertically uniformly distributed to set 6 V-type muffler plates 608 in silencer babinet 609, and inverted " V " shape is presented, and by cold rolling
Upward, the side of zinc-plated porous plate is downward for the side of steel plate.
External silencer 606 includes external silencer babinet, V-type muffler plate and inlet filter adapter three parts,
In external silencer babinet 609 use combined type acoustical panel structure design, the width W1 that it is stretched out outside cabinet is equal to import filtering
The thickness of device 63 adds the width W of V-type muffler plate.
V-type muffler plate 608 also uses combined type acoustical panel structure design, the difference is that it has used two layers of sound-absorbing
Cotton is filled, and the width W=6 δ of V-type muffler plate, its length dimension is with the distance X2 of the both sides of external silencer babinet 609
It determines, and X2=Y1-2 δ；The value range of the angle α of V-type muffler plate 608 is：90 α≤150 ° ° ≦, it is excellent in the present embodiment
135 °, the height L of V-type muffler plate 608 are selected, determines the quantity for arranging V-type muffler plate in external silencer babinet 609, and L is answered
More than the fist size of common laborer, with the V-type muffler plate of bottom convenient for assembly；
Inlet filter adapter 607 is formed using cold-reduced sheet Bending Processing, its design size needs to take into account external disappear
The size of sound device babinet 609 and inlet filter 63 is advisable with realizing effectively to connect them.
The installation step of external silencer 606 is as follows：
After the completion of big muffler plate 602 and small muffler plate 601 are assembled in wind turbine cabinet inlet side, external silencer is first assembled
Babinet 609 is connected on cabinet, then presses and V-type muffler plate 608 is mounted on external silencer babinet 609 to small sequence by upper
Both sides notice that inverted " V " distribution of shapes is presented in V-type muffler plate 608, inlet filter adapter 607 are then mounted on external disappear
609 outside of sound device babinet, is finally connected inlet filter 63 and inlet filter adapter 607 using hexagon socket head cap screw
It connects.
Alternatively, the three parts of external silencer 606 are first assembled, then it and cabinet are bolted.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
It for art personnel, can also make several improvements without departing from the principle of this utility model, these improvement also should be regarded as
The scope of protection of the utility model.
Claims (6)
1. a kind of cabinet structure of the external silencer of high-speed centrifugal fan, including mainframe（101）, power control cabinet（102）, into
It makes a slip of the tongue filter（63）And host（603）, the mainframe（101）And power control cabinet（102）Upper lower leaf setting, host（603）Gu
Due to mainframe（101）It is interior, in mainframe（101）Outer wall be equipped with exhaust outlet（36）, it is characterised in that：It further include small noise elimination
Plate（601）, big muffler plate（602）With external silencer（606）, the external silencer（606）It is fixed on mainframe（101）'s
On outer wall, inlet filter（63）Set on external silencer（606）On, big muffler plate（602）It is fixedly connected on mainframe（101）
It is interior, and big muffler plate（602）And inlet filter（63）It is arranged in parallel, big muffler plate（602）Both ends and mainframe
（101）Inner wall between form the first gap；Two pieces of small muffler plates（601）Set on big muffler plate（602）And inlet filter
（63）Between, two pieces of small muffler plates（601）Between be formed with the second gap；
The external silencer（606）Including filter adapter（607）, V-type muffler plate（608）With external silencer babinet
（609）, several V-type muffler plates（608）It is fixed on external silencer babinet after being overlapped mutually and by screw（609）It is interior, filtering
Device adapter（607）It is fixed on external silencer babinet（609）End face on, inlet filter（63）It is fixed on filter switching
Part（607）On.
2. the cabinet structure of the external silencer of high-speed centrifugal fan as described in claim 1, it is characterised in that：It is described into
It makes a slip of the tongue filter（63）Outside be equipped with successively be equipped with fine filtering net and coarse filtration net.
3. the cabinet structure of the external silencer of high-speed centrifugal fan as described in claim 1, it is characterised in that：The master
Cabinet（101）Side plate and power control cabinet（102）Side plate be all made of combined type acoustical panel, which includes cold rolling
Plate（1）, macromolecule damp felt（2）, acoustical cotton（3）, non-woven fabrics（4）And galvanized sheet（5）, the macromolecule damping felt（2）With it is cold
Roll plate（1）Between pass through glue adhesion, acoustical cotton（3）Pass through non-woven fabrics（4）After package, paving is pressed in macromolecule damping felt（2）On,
Galvanized sheet（5）With cold-reduced sheet（1）Between be connected by screw.
4. the cabinet structure of the external silencer of high-speed centrifugal fan as claimed in claim 3, it is characterised in that：The plating
Zine plate（5）It is equipped with several through-holes（51）.
5. the cabinet structure of the external silencer of high-speed centrifugal fan as claimed in claim 3, it is characterised in that：It is described small
Muffler plate（601）, big muffler plate（602）, V-type muffler plate（608）With external silencer babinet（609）It is all made of combined type noise reduction
Plate is made.
6. the cabinet structure of the external silencer of high-speed centrifugal fan as described in claim 1, it is characterised in that：The mistake
Filter adapter（607）It is made of cold-reduced sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721869538.1U CN208057527U (en) | 2017-12-28 | 2017-12-28 | A kind of cabinet structure of the external silencer of high-speed centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721869538.1U CN208057527U (en) | 2017-12-28 | 2017-12-28 | A kind of cabinet structure of the external silencer of high-speed centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057527U true CN208057527U (en) | 2018-11-06 |
Family
ID=63994563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721869538.1U Active CN208057527U (en) | 2017-12-28 | 2017-12-28 | A kind of cabinet structure of the external silencer of high-speed centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061064A (en) * | 2017-12-28 | 2018-05-22 | 南京磁谷科技有限公司 | A kind of cabinet structure of the external silencer of high-speed centrifugal fan |
-
2017
- 2017-12-28 CN CN201721869538.1U patent/CN208057527U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061064A (en) * | 2017-12-28 | 2018-05-22 | 南京磁谷科技有限公司 | A kind of cabinet structure of the external silencer of high-speed centrifugal fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106439959A (en) | Low noise and large suction range hood | |
| CN206111280U (en) | Rearmounted silencer of car | |
| CN106089362B (en) | A kind of internal combustion engine exhaust silencer | |
| CN203717447U (en) | Air conditioner indoor unit and volute thereof | |
| CN106014545A (en) | Novel silencer for engine | |
| CN202117734U (en) | Impedance compound muffler with large wind volume | |
| CN208057527U (en) | A kind of cabinet structure of the external silencer of high-speed centrifugal fan | |
| CN108005963A (en) | A kind of cabinet body structure of high-speed centrifugal fan | |
| CN202090995U (en) | Slice-type silencer | |
| CN207864263U (en) | A kind of cabinet structure of the high-speed centrifugal fan with built-in silencer | |
| CN207993473U (en) | A kind of micropunch complex muffler | |
| CN208057525U (en) | A kind of cabinet body structure of high-speed centrifugal fan | |
| CN106150601A (en) | Combined type muffler | |
| CN108252960A (en) | A kind of noise elimination cabinet of high-speed centrifugal fan | |
| CN208057526U (en) | A kind of noise elimination cabinet of high-speed centrifugal fan | |
| CN108061064A (en) | A kind of cabinet structure of the external silencer of high-speed centrifugal fan | |
| CN109945680A (en) | Cooling tower with silencer | |
| CN108252959A (en) | A kind of cabinet structure of the high-speed centrifugal fan with built-in silencer | |
| CN202047880U (en) | Novel impedance composite silencer | |
| CN201502421U (en) | Anti-noise structure for motor of diesel generator | |
| CN207718799U (en) | A kind of novel impedance complex muffler | |
| CN208173237U (en) | A kind of environment-friendly type noise absorber | |
| CN202430637U (en) | Aluminum perforated sound absorption and insulation plate | |
| CN108119410A (en) | A kind of combined type muffler plate for high-speed centrifugal fan cabinet | |
| CN206267916U (en) | Automobile main muffler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co., Ltd Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU LIMITED Corp. |
|
| CP03 | Change of name, title or address |