CN108252959A - A kind of cabinet structure of the high-speed centrifugal fan with built-in silencer - Google Patents
A kind of cabinet structure of the high-speed centrifugal fan with built-in silencer Download PDFInfo
- Publication number
- CN108252959A CN108252959A CN201711452956.5A CN201711452956A CN108252959A CN 108252959 A CN108252959 A CN 108252959A CN 201711452956 A CN201711452956 A CN 201711452956A CN 108252959 A CN108252959 A CN 108252959A
- Authority
- CN
- China
- Prior art keywords
- built
- silencer
- mainframe
- babinet
- plate
- 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.)
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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
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- 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
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of cabinet structures of the high-speed centrifugal fan with built-in silencer, lower leaf is set on mainframe and power control cabinet, host is fixed in mainframe, inlet filter is set on the outer wall of mainframe, exhaust outlet is equipped on the outer wall of mainframe, built-in silencer is further included, the built-in silencer is fixed in mainframe；Built-in silencer includes small muffler plate, big muffler plate and babinet, two pieces of small muffler plates are symmetrically fixed on the inner wall of babinet, and the first gap is formed between two small muffler plates, and big muffler plate is fixed in babinet, and big muffler plate is located at the inside in the first gap, and parallel with the first gap；The babinet is rectangular configuration, and the port wall on babinet and positioned at small muffler plate side extends outwardly and forms the extension edge of platform-like.Noise elimination effect of the present invention is good, rational in infrastructure.
Description
Technical field：
The present invention relates to a kind of cabinet structures of the high-speed centrifugal fan with built-in silencer.
Background technology：
High-speed centrifugal fan employs that magnetic floats or empty floating axle is held 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.To increase noise elimination effect, acoustical panel is often added in cabinet, due to by structure design and technological level
It limits, plate inconvenience filling deadener in cabinet top plate and cabinet so that fan noise readily penetrates through cabinet top plate and cabinet
Middle plate, so as to reduce the sound absorption effect of cabinet entirety.
Invention content：
The present invention is to provide a kind of high speed with built-in silencer to solve the above-mentioned problems of the prior art
The cabinet structure of centrifugal fan.
The technical solution adopted in the present invention has：A kind of cabinet knot of the high-speed centrifugal fan with built-in silencer
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, inlet filter is set on the outer wall of mainframe, and exhaust outlet is equipped on the outer wall of mainframe, is further included built-in
Silencer, the built-in silencer are fixed in mainframe；The built-in silencer includes small muffler plate, big muffler plate and case
Body, two pieces of small muffler plates are symmetrically fixed on the inner wall of babinet, and the first gap is formed between two small muffler plates, and big muffler plate is consolidated
Due in babinet, and big muffler plate is located at the inside in the first gap, and parallel with the first gap；The babinet is rectangle knot
Structure, the port wall on babinet and positioned at small muffler plate side extend outwardly and form the extension edge of platform-like.
Further, it is equipped with successively equipped with fine filtering on the outer wall of the mainframe and positioned at the outside of inlet filter
Net and coarse filtration net.
Further, the side plate of the side plate of the babinet, the side plate of mainframe and power control cabinet uses combined type noise reduction
Plate, the combined type acoustical panel include cold-reduced sheet, macromolecule damping felt, acoustical cotton, non-woven fabrics and galvanized sheet, the macromolecule damping
By glue adhesion between felt and cold-reduced sheet, after acoustical cotton is by non-woven wraps, paving is pressed on macromolecule damping felt, galvanized sheet
It is connected by screw between cold-reduced sheet.
Further, the galvanized sheet is equipped with several through-holes.
Further, the small muffler plate and big muffler plate are formed by stacking by two pieces of combined type acoustical panels.
The present invention has the advantages that：
The large and small muffler plate of outer-layer box body and board-type of silencer built in 1. employs combined type noise elimination harden structure, directly
The large and small muffler plate of template is located in the babinet, when noise is by built-in silencer, can be effectively reduced noise and penetrate mainframe
Plate in top plate and cabinet, so as to enhance the sound insulation effect of cabinet；
2. noise is by built-in silencer babinet, contact area bigger improves sound absorption effect；
3. " L " type (extension edge 6040) structure of silencer babinet built in is located on the inside of the rack column of cabinet inlet side,
Noise can effectively be prevented to generate leakage sound directly through rack column, further reduced the overall noise of cabinet；
4. the large and small muffler plate of board-type is mounted on built-in silencer babinet, when assembling, first assembles built-in silencer,
It is connected again with cabinet, built-in silencer, can be with the wind turbine machine of same type after mass production as an independent muffler part
Cabinet carries out random combine.
Description of the drawings：
Fig. 1 to Fig. 4 is structure chart of the present invention.
Fig. 5 to Fig. 8 is the structure chart of built-in silencer in the present invention.
Fig. 9 and Figure 10 is the structure chart of combined type acoustical panel in the present invention.
Figure 11 is the structure chart of galvanized sheet in the present invention.
Specific embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, the present invention discloses a kind of cabinet knot of the high-speed centrifugal fan with built-in silencer
Structure, including mainframe 101, power control cabinet 102, inlet filter 63 and host 603, lower leaf on mainframe 101 and power control cabinet 102
Setting, host 603 are fixed in mainframe 101, and inlet filter 63 is set on the outer wall of mainframe 101, in mainframe 101
Outer wall is equipped with exhaust outlet 36, further includes built-in silencer 605, and the built-in silencer 605 is fixed in mainframe 101.
Such as Fig. 5 to Fig. 8, built-in silencer 605 includes small muffler plate 601, big muffler plate 602 and babinet 604, two pieces small to disappear
Sound plate 601 is symmetrically fixed on the inner wall of babinet 604, and the first gap, big muffler plate 602 are formed between two small muffler plates 601
It is fixed in babinet 604, and big muffler plate 602 is located at the inside in the first gap, and parallel with the first gap.Babinet 604 is
Rectangular configuration, the port wall on babinet 604 and positioned at small 601 side of muffler plate extend outwardly and form the extension edge of platform-like
6040。
It is equipped on the outer wall of mainframe 101 and positioned at the outside of inlet filter 63 and is equipped with fine filtering net and thick mistake successively
Strainer.
With reference to Fig. 9 to Figure 11, the side plate of the side plate of babinet 604, the side plate of mainframe 101 and power control cabinet 102 uses
Combined type acoustical panel, the combined type acoustical panel include cold-reduced sheet 1, macromolecule damping felt 2, acoustical cotton 3, non-woven fabrics 4 and galvanized sheet
5, by glue adhesion between macromolecule damping felt 2 and cold-reduced sheet 1, after acoustical cotton 3 is wrapped up by non-woven fabrics 4, paving is pressed in high score
On son damping felt 2, it is connected by screw between galvanized sheet 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 more than 23%, 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, perforation numbers (as shown in Figure 4) of the n for entire perforated plate, entire combined type
The thickness of acoustical panel be δ, δ=30~80mm, preferably 50mm.
Small muffler plate 601 and big muffler plate 602 are formed by stacking by two pieces of combined type acoustical panels.
During fan operation, gas passes through coarse filtration net and fine filtering net by inlet filter 63, into built-in silencer
605, it sucked, compress by host 603, then discharged from exhaust outlet 36, downstream user pipeline is reached, at this point, host 603 is main
Noise source, noise, across built-in silencer 605, spread out of from inlet filter 63 to ambient radiation and reach human ear, board-type is small to disappear
Sound plate 601 and the big muffler plate 602 of board-type are mounted in babinet 604, and built-in 605 structure of silencer has sound absorption effect, can
The noise at fan inlet is greatly reduced；
The thickness of the big muffler plate of board-type and the small muffler plate of board-type is the thickness of 2 times of machine cabinet door plate, i.e. 2 δ, and case
Thickness of the thickness of body 604 for 1 times of 100 door-plate of cabinet, i.e. δ；
The large and small muffler plate of board-type is as follows in the installation site method for determining dimension of box inside：
The small muffler plate 601 of two board-types and the distance of built-in silencer air inlet are S1, and S1 >=δ, wherein δ are cabinets
The thickness of door-plate.The distance between two small muffler plates of board-type are L1, the big muffler plate 602 of board-type and the small muffler plate of board-type
The distance between 601 be S2, and the distances of the big muffler plate 602 of board-type and 604 both sides of babinet is L2, the small muffler plate of board-type
601 and the big muffler plate 602 of board-type height for H, H=H1-2 δ, wherein H1 be in cabinet between plate and cabinet top plate away from
From.And the value size of L1, S2 and L2 are related with by their air inlet flow velocity, it is assumed that fan inlet maximum enters the wind volume flow
For Qmax (m3/ s), then there are L1 >=105·Qmax·H-1, L2 >=105·Qmax·H-1And L1 ＞ 2 (L2), S2 >=105·
Qmax·H-1。
After the installation site that the large and small muffler plate of board-type is determined, the appearance and size of built-in silencer also determines that, tool
Body method is as follows：
The horizontal distance of two parallel flange of the width dimensions X2 of built-in silencer 605 and rack column is equal, built-in to disappear
The length dimension Y2=S1+S2+6.5 δ of sound device, the height H1 of built-in silencer by between plate in cabinet and cabinet top plate away from
From decision.
After the appearance and size that built-in silencer 605 is determined, the width dimensions of large and small muffler plate are just by babinet 605
Chamber size determines that specific method is as follows：The thickness of the large and small muffler plate of board-type is 2 δ, the height of the large and small muffler plate of board-type
It is H, width=Yj-2 (L2+ δ) of the big muffler plate of board-type, width=0.5 (Yj-L1-2 δ) of small muffler plate.
Before the host 603 of wind turbine and each door-plate are not installed, first the built-in silencer being completed is passed through with cabinet
Hexagon socket head cap screw is connected, and then installs inlet filter 63 again, finally installs host 603 and other machine cabinet door plates.
Built-in silencer 605 is that tool is directive, when mounted, should by built-in 605 air inlet side of silencer with into making a slip of the tongue
Filter 63 and rack column flange are connected, and built-in silencer 605 goes out gas side towards host 603.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, several improvement can also be made without departing from the principle of the present invention, these improvement also should be regarded as the present invention's
Protection domain.
Claims (5)
1. a kind of cabinet structure of the high-speed centrifugal fan with built-in silencer, including mainframe (101), power control cabinet
(102), inlet filter (63) and host (603), lower leaf setting, host on the mainframe (101) and power control cabinet (102)
(603) it is fixed in mainframe (101), inlet filter (63) is on the outer wall of mainframe (101), in mainframe (101)
Outer wall be equipped with exhaust outlet (36), it is characterised in that：Built-in silencer (605) is further included, the built-in silencer (605) is solid
Due in mainframe (101)；The built-in silencer (605) includes small muffler plate (601), big muffler plate (602) and babinet
(604), two pieces small muffler plate (601) is symmetrically fixed on the inner wall of babinet (604), and is formed between two small muffler plates (601)
First gap, big muffler plate (602) are fixed in babinet (604), and big muffler plate (602) is positioned at the inside in the first gap, and
It is parallel with the first gap；The babinet (604) is rectangular configuration, on babinet (604) and positioned at small muffler plate (601) side
Port wall extends outwardly and forms the extension edge (6040) of platform-like.
2. the cabinet structure of the high-speed centrifugal fan with built-in silencer as described in claim 1, it is characterised in that：Institute
It states on the outer wall of mainframe (101) and is equipped with positioned at the outside of inlet filter (63) and be equipped with fine filtering net and coarse filtration successively
Net.
3. the cabinet structure of the high-speed centrifugal fan with built-in silencer stated such as claim 1, it is characterised in that：It is described
For the side plate of the side plate of babinet (604), the side plate of mainframe (101) and power control cabinet (102) using combined type acoustical panel, this is multiple
Box-like acoustical panel includes cold-reduced sheet (1), macromolecule damping felt (2), acoustical cotton (3), non-woven fabrics (4) and galvanized sheet (5), the height
By glue adhesion between air damping felt (2) and cold-reduced sheet (1), after acoustical cotton (3) is wrapped up by non-woven fabrics (4), paving is pressed in
On macromolecule damping felt (2), it is connected by screw between galvanized sheet (5) and cold-reduced sheet (1).
4. the cabinet structure of the high-speed centrifugal fan with built-in silencer as claimed in claim 3, it is characterised in that：Institute
Galvanized sheet (5) is stated equipped with several through-holes (51).
5. the cabinet structure of the high-speed centrifugal fan with built-in silencer as claimed in claim 3, it is characterised in that：Institute
Small muffler plate (601) and big muffler plate (602) is stated to be formed by stacking by two pieces of combined type acoustical panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711452956.5A CN108252959A (en) | 2017-12-28 | 2017-12-28 | A kind of cabinet structure of the high-speed centrifugal fan with built-in silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711452956.5A CN108252959A (en) | 2017-12-28 | 2017-12-28 | A kind of cabinet structure of the high-speed centrifugal fan with built-in silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108252959A true CN108252959A (en) | 2018-07-06 |
Family
ID=62724137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711452956.5A Withdrawn CN108252959A (en) | 2017-12-28 | 2017-12-28 | A kind of cabinet structure of the high-speed centrifugal fan with built-in silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108252959A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020043022A1 (en) * | 2018-08-30 | 2020-03-05 | 南京磁谷科技有限公司 | Low-noise cabinet with modular box-type assembled structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204139360U (en) * | 2014-10-13 | 2015-02-04 | 上海然贝声学环保工程有限公司 | Plug-in type Felt |
| CN104805920A (en) * | 2015-05-07 | 2015-07-29 | 商丘市金桥环保科技有限公司 | Noise elimination device for generator room |
| CN106762730A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension cfentrifugal blower |
| CN207864263U (en) * | 2017-12-28 | 2018-09-14 | 南京磁谷科技有限公司 | A kind of cabinet structure of the high-speed centrifugal fan with built-in silencer |
-
2017
- 2017-12-28 CN CN201711452956.5A patent/CN108252959A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204139360U (en) * | 2014-10-13 | 2015-02-04 | 上海然贝声学环保工程有限公司 | Plug-in type Felt |
| CN104805920A (en) * | 2015-05-07 | 2015-07-29 | 商丘市金桥环保科技有限公司 | Noise elimination device for generator room |
| CN106762730A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension cfentrifugal blower |
| CN207864263U (en) * | 2017-12-28 | 2018-09-14 | 南京磁谷科技有限公司 | A kind of cabinet structure of the high-speed centrifugal fan with built-in silencer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020043022A1 (en) * | 2018-08-30 | 2020-03-05 | 南京磁谷科技有限公司 | Low-noise cabinet with modular box-type assembled structure |
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|---|---|---|---|
| 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: 20180706 |
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| WW01 | Invention patent application withdrawn after publication |