CN107524617A - The cold axial flow blower of noise reduction ring - Google Patents
The cold axial flow blower of noise reduction ring Download PDFInfo
- Publication number
- CN107524617A CN107524617A CN201710736839.5A CN201710736839A CN107524617A CN 107524617 A CN107524617 A CN 107524617A CN 201710736839 A CN201710736839 A CN 201710736839A CN 107524617 A CN107524617 A CN 107524617A
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- noise
- former dome
- kuppe
- reduction section
- 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.)
- Granted
Links
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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- 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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of cold axial flow blower of noise reduction ring, it is characterised in that：Include air inlet, Blower Housing, former dome, kuppe afterwards, motor, impeller and noise reduction section, air inlet is fixedly installed on Blower Housing inlet end, motor is fixed in Blower Housing, impeller is arranged on machine shaft, former dome is arranged on motor front end and is fixed on Blower Housing inwall, kuppe is arranged on motor rear end and is fixed on Blower Housing inwall afterwards, noise reduction section is fixedly installed on Blower Housing madial wall, former dome noise-reducing structure and the rear kuppe noise-reducing structure with former dome and rear kuppe form fit are provided with former dome and rear kuppe.Invention increases the noise reduction area of entirety, the noise-reducing structure of front and rear kuppe can effectively eliminate motor shaft pivoting friction noise and blade is distributed to the noise at center, the noise in necessary air channel is only left, so as to substantially reduce noise volume overall caused by blower fan.
Description
Technical field
The present invention relates to a kind of blower fan, particularly a kind of cold axial flow blower of noise reduction ring.
Background technology
Axial flow blower, purposes is very extensive, is exactly and the equidirectional air-flow of the axle of fan blade, such as electric fan, outdoor machine of air-conditioner wind
Fan is exactly that axle stream mode runs blower fan.Why it is referred to as " axial-flow type ", is because gas flows parallel to fan shaft.Axial-flow type wind
Machine is generally used for the occasion that traffic requirement is higher and pressure requirements are relatively low.Axial fan fixed position simultaneously moves air.Axle
Flow fan is mainly made up of draught fan impeller and casing, simple in construction but data demand is very high.Blower fan OA overall noise level and blade
Six powers of speed are directly proportional.According to analysis, fan noise source is substantially dipole property.It can further release, noise
It is due to that blade is acted on the air for flow through blower fan caused by pulsating force.It is considered that blower fan Discrete Dipole Approximation source has two
Individual, one is that another is caused by aerodynamic interference with the noise of propeller type caused by the pressure field of rotor blade motion
Fluctuating pressure on blades noise.
Cladding sets quieter material to abate the noise to traditional axial flow blower mainly on the outside of Blower Housing, but blower fan
Both ends diameter itself is larger, and the noise that both ends exhale is also larger, only sets erasure effect limited merely on outer side.
The content of the invention
The present invention relates to a kind of cold axial flow blower of noise reduction ring, its erasure effect are good.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of cold axial flow blower of noise reduction ring, it is characterised in that：Include air inlet, Blower Housing, former dome, rear kuppe, electricity
Machine, impeller and noise reduction section, air inlet are fixedly installed on Blower Housing inlet end, and motor is fixed in Blower Housing, and impeller is set
Put on machine shaft, former dome is arranged on motor front end and is fixed on Blower Housing inwall, and rear kuppe is arranged on electricity
Machine rear end is simultaneously fixed on Blower Housing inwall, and noise reduction section is fixedly installed on Blower Housing madial wall, and former dome is led with after
Former dome noise-reducing structure and the rear kuppe noise-reducing structure with former dome and rear kuppe form fit are provided with stream cover.
Further, the former dome is semielliptical shape housing, former dome noise-reducing structure shape and former dome
Match somebody with somebody and former dome noise-reducing structure overall volume be less than former dome volume, former dome silencer mechanism include keel bracket a,
Silencing net a, fixed support a and inner stuffing, keel bracket a are made up of some radiation keel a and annular keel a, every radiation
Keel a one end is located at semiellipsoid shape one end vertex position, and the radiation keel a other ends are along semiellipsoid surface along axis
Direction extends to the other end of semiellipsoid and is fixedly connected with annular keel a, and keel bracket a is fixed by fixed support a
In former dome inwall, silencing net a is set in keel bracket a outside, and inner stuffing is uniformly arranged in keel bracket a.
Further, the silencing net a is the porous plate of percent opening 14.5%.
Further, the rear kuppe is the cone housing that side is cambered surface, and rear kuppe noise-reducing structure is arranged on
Afterwards on the inside of kuppe, rear kuppe noise-reducing structure includes silencing net b, fixed support b and inner stuffing, and silencing net b includes cylinder
Shape shell portion and hemispherical portion, cylindrical tube section diameter is equal with hemispherical portion diameter and cylindrical tube body portion one
End is fixedly connected with hemispherical portion, and silencing net b is fixed on rear kuppe inwall by fixed support b, and inner stuffing is uniformly set
Put in silencing net b.
Further, the silencing net b is processed into by the porous plate of percent opening 14.5%.
Further, the noise reduction section includes import noise reduction section, main frame noise reduction section and exports noise reduction section, import noise reduction section,
Main frame noise reduction section and outlet noise reduction section are arranged on Blower Housing madial wall, and import noise reduction section is correspondingly arranged at former dome side
On the inside of the Blower Housing of face, main frame noise reduction section is correspondingly arranged on the inside of the Blower Housing of motor side, and outlet noise reduction section is correspondingly arranged at
Side in kuppe side Fan casing body afterwards, Blower Housing correspond to import noise reduction section, main frame noise reduction section and outlet noise reduction section respectively to
Outside is swelled, and inner stuffing is arranged in the protuberance cavity of Blower Housing and fixed by netted cover plate.
Further, the inner stuffing is super glass wool, and glass gauze is wrapped up on the outside of super glass wool.
Further, the inner stuffing fills up 2/3rds skies of keel bracket a, silencing net b and barrel housing inner chamber
Between.
The present invention compared with prior art, has advantages below and effect：The present invention is in prior art blower housing noise reduction
On the basis of, corresponding noise-reducing structure is also equipped with front and rear kuppe, it is front and rear to lead so as to increase overall noise reduction area
The noise-reducing structure of stream cover can effectively eliminate motor shaft pivoting friction noise and blade is distributed to the noise at center, Jin Jinliu
The noise in the air channel being necessary, so as to substantially reduce noise volume overall caused by blower fan.
Brief description of the drawings
Fig. 1 is the schematic diagram of the cold axial flow blower of noise reduction ring of the present invention.
Fig. 2 is the leading portion schematic diagram of the cold axial flow blower of noise reduction ring of the present invention.
Fig. 3 is the stage casing schematic diagram of the cold axial flow blower of noise reduction ring of the present invention.
Fig. 4 is the back segment schematic diagram of the cold axial flow blower of noise reduction ring of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is described in further detail by embodiment, and following examples are to this hair
Bright explanation and the invention is not limited in following examples.
As illustrated, a kind of cold axial flow blower of noise reduction ring of the present invention, includes air inlet 1, Blower Housing 2, former dome
3rd, rear kuppe 4, motor 5, impeller 6 and noise reduction section 7, air inlet 1 are fixedly installed on the inlet end of Blower Housing 2, and motor 5 is fixed
In Blower Housing 2, impeller 6 is arranged in the rotating shaft of motor 5 and driven by motor 5, and former dome 3 is arranged on the front end of motor 5 and consolidated
It is scheduled on the inwall of Blower Housing 2, rear kuppe 4 is arranged on the rear end of motor 5 and is fixed on the inwall of Blower Housing 2, and noise reduction section 7 is solid
Surely it is arranged on the madial wall of Blower Housing 2, is provided with former dome 3 and rear kuppe 4 and former dome 3 and rear kuppe 4
The former dome noise-reducing structure of form fit and rear kuppe noise-reducing structure.
Former dome is semielliptical shape housing, and former dome noise-reducing structure shape is matched with former dome 3 and preceding water conservancy diversion
Cover noise-reducing structure overall volume is less than the volume of former dome 3, former dome silencer mechanism include keel bracket a8, silencing net a9,
Fixed support a10 and inner stuffing, keel bracket a8 are made up of some radiation keel a and annular keel a, every radiation keel a
One end is located at semiellipsoid shape one end vertex position, and the radiation keel a other ends are along semiellipsoid surface along axis direction
Extend to the other end of semiellipsoid and be fixedly connected with annular keel a, keel bracket a8 is fixed on by fixed support a10
The inwall of former dome 3, silencing net a9 are set in keel bracket a 8 outside, and inner stuffing is uniformly arranged on keel bracket a 8
It is interior.Silencing net a 9 is the porous plate of percent opening 14.5%.
Kuppe 4 is the cone housing that side is cambered surface afterwards, and rear kuppe noise-reducing structure is arranged in rear kuppe 4
Side, rear kuppe noise-reducing structure include silencing net b11, fixed support b12 and inner stuffing, and silencing net b11 includes cylindrical tube
Body portion and hemispherical portion, cylindrical tube section diameter is equal with hemispherical portion diameter and cylindrical tube body portion one end with
Hemispherical portion is fixedly connected, and silencing net b11 is fixed on the rear inwall of kuppe 4 by fixed support b12, and inner stuffing is uniformly set
Put in silencing net b11.Silencing net b11 is processed into by the porous plate of percent opening 14.5%.
Noise reduction section includes import noise reduction section 13, main frame noise reduction section 14 and outlet noise reduction section 15, and import noise reduction section 13, main frame disappear
Segment 14 and outlet noise reduction section 15 are arranged on the madial wall of Blower Housing 2, and import noise reduction section 13 is correspondingly arranged at former dome 3
The inner side of side Blower Housing 2, main frame noise reduction section 14 are correspondingly arranged at the inner side of 6 side Blower Housing of motor 2,15 pairs of outlet noise reduction section
It should be arranged on the inner side of rear 4 side Blower Housing of kuppe 2, the corresponding import noise reduction section 13 of Blower Housing 2, main frame noise reduction section 14 and go out
Mouth noise reduction section 15 is swelled laterally respectively, and inner stuffing is arranged in the protuberance cavity of Blower Housing 2 and consolidated by netted cover plate
It is fixed.
Inner stuffing is super glass wool, and glass gauze is wrapped up on the outside of super glass wool.Inner stuffing fills up keel bracket
A, 2/3rds spaces of silencing net b and barrel housing inner chamber.
The cold axial flow blower of noise reduction ring of the present invention is on the basis of prior art blower housing noise reduction, in front and rear kuppe
Corresponding noise-reducing structure is also equipped with, so as to increase overall noise reduction area, the noise-reducing structure of front and rear kuppe can be effective
Ground eliminates motor shaft pivoting friction noise and blade distributes the noise for the noise at center, only leaving necessary air channel, from
And substantially reduce noise volume overall caused by blower fan；The noise-reducing structure for increasing setting simultaneously is provided entirely in front and rear water conservancy diversion
Cover is internal, compact-sized so as to not increase blower fan volume itself.
Above content described in this specification is only illustration made for the present invention.Technology belonging to the present invention
The technical staff in field can be made various modifications or supplement to described specific embodiment or be substituted using similar mode, only
Will without departing from description of the invention content or surmount scope defined in the claims, all should belong to the present invention guarantor
Protect scope.
Claims (8)
- A kind of 1. cold axial flow blower of noise reduction ring, it is characterised in that：Comprising air inlet, Blower Housing, former dome, rear kuppe, Motor, impeller and noise reduction section, air inlet are fixedly installed on Blower Housing inlet end, and motor is fixed in Blower Housing, impeller It is arranged on machine shaft, former dome is arranged on motor front end and is fixed on Blower Housing inwall, and rear kuppe is arranged on Motor rear end is simultaneously fixed on Blower Housing inwall, and noise reduction section is fixedly installed on Blower Housing madial wall, and former dome is with after Former dome noise-reducing structure and the rear kuppe noise reduction knot with former dome and rear kuppe form fit are provided with kuppe Structure.
- 2. according to the cold axial flow blower of noise reduction ring described in claim 1, it is characterised in that：The former dome is semielliptical shape shell Body, former dome noise-reducing structure shape matches with former dome and former dome noise-reducing structure overall volume is less than former dome Volume, former dome silencer mechanism include keel bracket a, silencing net a, fixed support a and inner stuffing, if keel bracket a by Dry radiation keel a and annular keel a is formed, and every radiation keel a one end is located at semiellipsoid shape one end vertex position, radiates The keel a other ends along semiellipsoid surface along the other end from axis direction to semiellipsoid extension and with annular keel a It is fixedly connected, keel bracket a is fixed on former dome inwall by fixed support a, and silencing net a is set in the outer of keel bracket a Side, inner stuffing are uniformly arranged in keel bracket a.
- 3. according to the cold axial flow blower of noise reduction ring described in claim 2, it is characterised in that：The silencing net a is percent opening 14.5% porous plate.
- 4. according to the cold axial flow blower of noise reduction ring described in claim 1, it is characterised in that：Kuppe is that side is cambered surface after described Cone housing, rear kuppe noise-reducing structure is arranged on the inside of rear kuppe, rear kuppe noise-reducing structure include silencing net b, Fixed support b and inner stuffing, silencing net b include cylindrical tube body portion and hemispherical portion, cylindrical tube section diameter with Hemispherical portion diameter is equal and cylindrical tube body portion one end is fixedly connected with hemispherical portion, and silencing net b passes through fixed support b It is fixed on rear kuppe inwall, inner stuffing is uniformly arranged in silencing net b.
- 5. according to the cold axial flow blower of noise reduction ring described in claim 4, it is characterised in that：The silencing net b is by percent opening 14.5% Porous plate be processed into.
- 6. according to the cold axial flow blower of noise reduction ring described in claim 1, it is characterised in that：The noise reduction section includes import noise reduction Section, main frame noise reduction section and outlet noise reduction section, import noise reduction section, main frame noise reduction section and outlet noise reduction section are arranged in Blower Housing In side wall, import noise reduction section is correspondingly arranged at side in the Fan casing body of former dome side, and main frame noise reduction section is correspondingly arranged at motor Side in the Fan casing body of side, outlet noise reduction section are correspondingly arranged at side in rear kuppe side Fan casing body, and Blower Housing correspondingly enters Mouth noise reduction section, main frame noise reduction section and outlet noise reduction section are swelled laterally respectively, and the protuberance that inner stuffing is arranged on Blower Housing is empty Intracavitary is simultaneously fixed by netted cover plate.
- 7. according to the cold axial flow blower of noise reduction ring described in any one of claim 2,4,6, it is characterised in that：The inner stuffing is Super glass wool, super glass wool outside parcel glass gauze.
- 8. according to the cold axial flow blower of noise reduction ring described in claim 7, it is characterised in that：The inner stuffing fills up keel bracket A, 2/3rds spaces of silencing net b and barrel housing inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736839.5A CN107524617B (en) | 2017-08-24 | 2017-08-24 | The cold axial flow blower of noise reduction ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736839.5A CN107524617B (en) | 2017-08-24 | 2017-08-24 | The cold axial flow blower of noise reduction ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107524617A true CN107524617A (en) | 2017-12-29 |
| CN107524617B CN107524617B (en) | 2019-08-23 |
Family
ID=60682143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710736839.5A Active CN107524617B (en) | 2017-08-24 | 2017-08-24 | The cold axial flow blower of noise reduction ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524617B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374919A (en) * | 2019-08-19 | 2019-10-25 | 南通迪瓦特节能风机有限公司 | A kind of cold axial flow blower impeller of noise reduction ring |
| CN113027824A (en) * | 2021-04-16 | 2021-06-25 | 曹路勇 | Impeller type intelligent ventilation and noise reduction device and use method thereof |
| CN117495914A (en) * | 2023-12-29 | 2024-02-02 | 中国科学院长春光学精密机械与物理研究所 | Multiband circumferential scanning type search and follow integrated photoelectric early warning recognition system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2393960A1 (en) * | 1977-06-08 | 1979-01-05 | Berry Sa | Silencing system for axial flow fan - has glass wool lined duct with resonator tubes tuned to absorb sound of different frequencies |
| CN201250804Y (en) * | 2008-07-03 | 2009-06-03 | 南阳防爆集团有限公司 | Explosion-proof type press in type disrotatory axial flow local ventilating fan for mine |
| CN201546981U (en) * | 2009-11-05 | 2010-08-11 | 中铁隧道集团有限公司 | Axial flow fan in super long tunnel construction on plateau |
| CN201763693U (en) * | 2010-08-30 | 2011-03-16 | 湖北赛福机械有限公司 | Contra-rotating axial-flow type partial ventilating machine with built-in ventilating pipes |
| CN104632714A (en) * | 2014-12-26 | 2015-05-20 | 平安电气股份有限公司 | High-efficiency low-noise axial flow fan |
-
2017
- 2017-08-24 CN CN201710736839.5A patent/CN107524617B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2393960A1 (en) * | 1977-06-08 | 1979-01-05 | Berry Sa | Silencing system for axial flow fan - has glass wool lined duct with resonator tubes tuned to absorb sound of different frequencies |
| CN201250804Y (en) * | 2008-07-03 | 2009-06-03 | 南阳防爆集团有限公司 | Explosion-proof type press in type disrotatory axial flow local ventilating fan for mine |
| CN201546981U (en) * | 2009-11-05 | 2010-08-11 | 中铁隧道集团有限公司 | Axial flow fan in super long tunnel construction on plateau |
| CN201763693U (en) * | 2010-08-30 | 2011-03-16 | 湖北赛福机械有限公司 | Contra-rotating axial-flow type partial ventilating machine with built-in ventilating pipes |
| CN104632714A (en) * | 2014-12-26 | 2015-05-20 | 平安电气股份有限公司 | High-efficiency low-noise axial flow fan |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374919A (en) * | 2019-08-19 | 2019-10-25 | 南通迪瓦特节能风机有限公司 | A kind of cold axial flow blower impeller of noise reduction ring |
| CN113027824A (en) * | 2021-04-16 | 2021-06-25 | 曹路勇 | Impeller type intelligent ventilation and noise reduction device and use method thereof |
| CN117495914A (en) * | 2023-12-29 | 2024-02-02 | 中国科学院长春光学精密机械与物理研究所 | Multiband circumferential scanning type search and follow integrated photoelectric early warning recognition system |
| CN117495914B (en) * | 2023-12-29 | 2024-04-19 | 中国科学院长春光学精密机械与物理研究所 | Multiband circumferential scanning type search and follow integrated photoelectric early warning recognition system |
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| Publication number | Publication date |
|---|---|
| CN107524617B (en) | 2019-08-23 |
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