CN201982337U - High-speed centrifugal blower - Google Patents
High-speed centrifugal blower Download PDFInfo
- Publication number
- CN201982337U CN201982337U CN2011200981220U CN201120098122U CN201982337U CN 201982337 U CN201982337 U CN 201982337U CN 2011200981220 U CN2011200981220 U CN 2011200981220U CN 201120098122 U CN201120098122 U CN 201120098122U CN 201982337 U CN201982337 U CN 201982337U
- Authority
- CN
- China
- Prior art keywords
- motor
- speed
- centrifugal blower
- impeller
- shaft
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a high-speed centrifugal blower. The high-speed centrifugal blower comprises a scroll casing and an impeller; an impeller shaft is in rigid connection with a motor shaft on the same axial line; and a motor is a high-speed permanent magnet DC (Direct Current) motor. The impeller shaft and the high-speed permanent magnet DC motor shaft are in rigid connection on the same axial line to form an impeller driving mechanism. Compared with the prior art, the high-speed centrifugal blower eliminates the efficiency decrease due to the frequency conversion or a speed-increasing gearbox through the high rotation speed of the DC motor.
Description
Technical field
The utility model relates to a kind of high-speed centrifugal blower, especially the drive motor of high-speed centrifugal blower belongs to pump technical field in the mechanical engineering.
Background technique
Blower leads to/the air feed machinery as a kind of, is widely used in all trades and professions, especially in fields such as oil, chemical industry, metallurgy, Aeronautics and Astronautics, environmental protection a large amount of uses is arranged.Blower has various ways, and centrifugal blower is comparatively use always a kind of, and centrifugal blower is made up of spiral case and impeller, and impeller shaft is connected with motor shaft.The high-speed centrifugal blower is meant that the impeller shaft rotating speed reaches the centrifugal blower of 10000 ~ 30000r/min.Because the impeller shaft rotating speed height of high-speed centrifugal blower, thus normally with the AC motor output shaft through step-up gear rear driving impeller shaft, so just have that efficient is low, noise is big, bulky deficiency.Especially mechanical efficiency counts the mechanical efficiency and the efficiency of motor of gear speedup case, is about 50 ~ 60% under the overall efficiency normal condition of high-speed centrifugal blower so.As not using step-up gear, then must carry out frequency conversion to the power supply of AC motor, then also can cause the not high problem of efficient, and make control complicated more.
Summary of the invention
At above-mentioned deficiency, the utility model will provide a kind of high efficiency high-speed centrifugal blower exactly.
The high-speed centrifugal blower that the utility model provides has spiral case and impeller, and impeller shaft is connected with motor shaft, and said motor is the high-speed permanent magnetic direct current generator, and it is that diaxon carries out rigid connection on same axis that said impeller shaft is connected with motor shaft.
The high-speed centrifugal blower that the utility model provides, rigid connection on same axis constitutes impeller drive with impeller shaft and high-speed permanent magnetic direct current arbor, compared with prior art, the utility model utilizes the high rotating speed of direct current generator and has eliminated the decrease in efficiency that causes because of frequency conversion or step-up gear.
The power line of said high-speed permanent magnetic direct current generator is provided with voltage or regulating current device, and with the control motor speed, this control mode is convenient with the rotating speed of control AC motor.Can cancel simultaneously to remedying the vane apparatus of the inconvenient adjusting air output that is provided with of control, efficient is further improved.
The motor shaft of said high-speed permanent magnetic direct current generator is installed on the motor casing with pneumatic bearing, makes to lubricate, not exist frictional loss, motor shaft floatability good, thereby has further improved efficient.
Description of drawings
Fig. 1 is the utility model one embodiment's a axial view, among the figure: 1-spiral case body, 2-intake grill, 3-honeycomb duct, 4-impeller, 5-exhaust outlet, 6-impeller shaft;
Fig. 2 is A among Fig. 1---A is to sectional view, among the figure: 1-spiral case body, 2-intake grill, 3-honeycomb duct, the 4-impeller, 5-exhaust outlet, 6-impeller shaft, 7-motor thimble portion, the 8-stator, 9-motor shaft, 10-rotor, 11-rear bearing block one, the 12-pneumatic bearing, 13-rear bearing block two, 14-thrust-bearing, 15-thrust disc, the 16-thrust-bearing, 17-back end cover for motor, 18-pneumatic bearing, 19-front-end bearing pedestal, 20-motor front cover, 21-spiral case bonnet, M-motor.
Embodiment
One high-speed centrifugal blower as shown in Figure 1, 2, mainly comprises: high-speed permanent-magnet brushless direct current generator, spiral case and impeller constitute.Spiral case is made of snail machine body 1 and spiral case bonnet 21, has in the spiral case body air inlet through hollow shaft mouth 2 and exhaust outlet 5 radially are set on the honeycomb duct 3 spiral case bodies.Impeller 4 is installed in the honeycomb duct, and impeller is fixed on the impeller shaft 6, and impeller casting self also has one section axial region, between this axial region and the spiral case bonnet mechanical sealing mechanism is arranged.The high speed direct current generator is harmonious with front cover 20 and spiral case bonnet and is installed on the spiral case, and the impeller shaft rear end is inserted motor shaft 9 and done coaxial fixing.Form motor casing by motor thimble portion 7 and rear end cover 17.Motor stator 8 is the windings that are fixed in the motor thimble portion, and electronics rotor 10 is the permanent magnetic steels that are fixed on the motor shaft, and voltage-operated device is arranged on the power line.In motor casing, also be provided with a front-end bearing pedestal and two rear bearing blocks, front-end bearing pedestal 19 and rear bearing block one 11 each radial force with a pneumatic bearing 18,12 supporting motor axles wherein, rear bearing block 2 13 then will be fixed on thrust disc 15 on the axle the be clipped in the middle axial force of bearing motor shaft and the axial float that limits motor shaft by two thrust- bearings 14,16.
During work, the motor high speed rotating, impeller sucks gas from suction port, discharge through relief opening; Blower has saved the gear speedup case equipment in the traditional drum blower fan system by motor direct-drive, reduces the component of traditional drum blower fan system, simplifies the formation of traditional drum blower fan system, reduces because the loss in efficiency that the gear up link causes.Adopt high-speed air suspension magneto simultaneously, improved electric efficiency.The rotating speed of rotor and blower wheel relies on the decision of supply voltage output, can cancel the loss in efficiency that the transport drum blower fan causes with the guide vane wheel of restriction air output.Drive with the DC electrical source after the Ac inversion, inverter efficient is 90%, and the utility model blower overall efficiency is 70% ~ 80%.
Claims (3)
1. a high-speed centrifugal blower has spiral case and impeller, and impeller shaft is connected with motor shaft, it is characterized in that said motor is the high-speed permanent magnetic direct current generator, and it is that diaxon carries out rigid connection on same axis that said impeller shaft is connected with motor shaft.
2. high-speed centrifugal blower as claimed in claim 1 is characterized in that the power line of said high-speed permanent magnetic direct current generator is provided with voltage or regulating current device.
3. high-speed centrifugal blower as claimed in claim 1 or 2 is characterized in that the motor shaft of said high-speed permanent magnetic direct current generator is installed on the motor casing with pneumatic bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200981220U CN201982337U (en) | 2011-04-07 | 2011-04-07 | High-speed centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200981220U CN201982337U (en) | 2011-04-07 | 2011-04-07 | High-speed centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982337U true CN201982337U (en) | 2011-09-21 |
Family
ID=44609799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200981220U Expired - Fee Related CN201982337U (en) | 2011-04-07 | 2011-04-07 | High-speed centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982337U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384098A (en) * | 2011-11-01 | 2012-03-21 | 哈尔滨东安发动机（集团）有限公司 | Blower |
| CN103807190A (en) * | 2012-11-09 | 2014-05-21 | 三星电机株式会社 | Electric blower |
| CN105545758A (en) * | 2016-01-26 | 2016-05-04 | 大连冠力电机科技有限公司 | Permanent magnet frequency control direct-drive high-speed motor pump all-in-one machine |
| CN105889097A (en) * | 2015-05-19 | 2016-08-24 | 罗立峰 | Superspeed air blower |
| CN113606171A (en) * | 2021-08-24 | 2021-11-05 | 鑫磊压缩机股份有限公司 | Blower with high-strength impeller |
-
2011
- 2011-04-07 CN CN2011200981220U patent/CN201982337U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384098A (en) * | 2011-11-01 | 2012-03-21 | 哈尔滨东安发动机（集团）有限公司 | Blower |
| CN102384098B (en) * | 2011-11-01 | 2016-06-22 | 哈尔滨东安发动机（集团）有限公司 | Aerator |
| CN103807190A (en) * | 2012-11-09 | 2014-05-21 | 三星电机株式会社 | Electric blower |
| CN105889097A (en) * | 2015-05-19 | 2016-08-24 | 罗立峰 | Superspeed air blower |
| CN105889097B (en) * | 2015-05-19 | 2019-01-04 | 罗立峰 | A kind of ultrahigh speed air blower |
| CN105545758A (en) * | 2016-01-26 | 2016-05-04 | 大连冠力电机科技有限公司 | Permanent magnet frequency control direct-drive high-speed motor pump all-in-one machine |
| CN113606171A (en) * | 2021-08-24 | 2021-11-05 | 鑫磊压缩机股份有限公司 | Blower with high-strength impeller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203717391U (en) | Magnetic levitation high-speed tertiary flow centrifugal air blower | |
| CN102200136B (en) | Air-suspension air-supply-adjustable air blower directly driven by high-speed electric machine | |
| CN201982337U (en) | High-speed centrifugal blower | |
| CN2773358Y (en) | High-speed magnetic-suspension centrifugal blower | |
| CN103016364A (en) | Centrifugal compressor | |
| CN103944313A (en) | Direct-coupled magnetic suspension fan | |
| CN101975177B (en) | Built-in turbo shaft flow motor type strong fan | |
| CN107084141A (en) | A kind of monopole centrifugal blower | |
| CN205618393U (en) | Adopt axial flux brushless motor's dust collector fan | |
| CN201246314Y (en) | Direct connecting type high speed centrifugal air blower | |
| CN106640693A (en) | Vertical type direct connection draught fan | |
| CN205533310U (en) | Vertical fan that directly allies oneself with | |
| CN1802319A (en) | Combination of compressor and permanent magnet motor for sewage aeration | |
| CN202326326U (en) | Centrifugal compressor | |
| CN205622447U (en) | Adopt axial flux brushless motor's dust collector fan | |
| CN107605765A (en) | Centrifugal blower | |
| CN205070658U (en) | Vertical permanent -magnet direct -drive motor | |
| CN203871986U (en) | Direct-connection magnetic levitation fan | |
| CN207393509U (en) | Centrifugal blower | |
| CN113819077A (en) | Magnetic suspension air blower with single-stage double-suction and double stator and rotor | |
| CN205618394U (en) | Adopt axial flux brushless motor's dust collector fan | |
| CN202867282U (en) | Double-stage high-speed centrifugal blower structure | |
| CN214465074U (en) | Motor directly links centrifugal blower | |
| CN1912395B (en) | Middle-speed high-pressure multi-stage centrifugal blowing machine | |
| CN217682375U (en) | Permanent magnet external rotor counter-rotating fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20150407 |
|
| EXPY | Termination of patent right or utility model |