CN203717391U - Magnetic levitation high-speed tertiary flow centrifugal air blower - Google Patents
Magnetic levitation high-speed tertiary flow centrifugal air blower Download PDFInfo
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- CN203717391U CN203717391U CN201320819058.XU CN201320819058U CN203717391U CN 203717391 U CN203717391 U CN 203717391U CN 201320819058 U CN201320819058 U CN 201320819058U CN 203717391 U CN203717391 U CN 203717391U
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- centrifugal blower
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- 238000005339 levitation Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 239000000725 suspension Substances 0.000 claims description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000005273 aeration Methods 0.000 description 6
- 239000010865 sewage Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000005404 monopole Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model relates to a magnetic levitation high-speed tertiary flow centrifugal air blower. The magnetic levitation high-speed tertiary flow centrifugal air blower mainly consists of an air inlet guide vane adjusting device, a magnetic levitation impeller rotor part, a fan stator part, a magnetic levitation permanent magnetic motor and a shaft-end seal. The magnetic levitation high-speed tertiary flow centrifugal air blower is high in efficiency, low in energy consumption, convenient to start and stop, strong in work condition applicability, compact and simple in structure, low in noise, good in sealing performance and small in operation and maintenance cost.
Description
Technical field
The utility model belongs to environmental protection science and technology and chemical technology field, is specially adapted to carry air in aeration in sewage treatment technological process.
Background technique
Along with the fast development of national economy, environmental protection and energy-saving and emission-reduction have become the theme of growing interest, and processing and the emission standard of the process spent water to every profession and trade are had higher requirement.Aeration in sewage treatment technological process adopts bottom aeration more, and the power consumption of bottom aeration system blower used, accounts for the more than 95% of the whole power consumptions of this process section, and the energy consumption of biochemical section aeration accounts for Sewage Plant energy consumption more than 60%.For adopting blower bottom aeration system, select the blower of which kind of form, will directly have influence on investment, operational and administrative expenses and the long-term benefit of Sewage Plant.Traditional sewage treatment has Roots blower, Multi-stage low speed centrifugal blower, gear up monopole centrifugal blower etc. with blower, Roots blower exists that efficiency is low, gas and the shortcoming such as noise is large, air feed is inhomogeneous, belongs to obsolete product at sewage treatment area; Multi-stage low speed centrifugal blower complex structure, floor space is large, rotor moment of inertia is large, inrush current is large, starting time is long, and dead time is long, efficiency is low, and energy-saving effect is not good; Gear up monopole centrifugal blower has advantages of that compared with Roots blower, Multi-stage low speed centrifugal blower efficiency is high, automatic controlling level is high, but the machinery driving efficiency in running is not high, fan noise is high and sharp, bare machine noise is many more than 100 decibels, lubrication system and the control system complexity of matched with blower simultaneously, easily fault part is many, and maintenance cost is high.
Model utility content
The utility model is intended to overcome above-mentioned defect, and object is to provide that the high and low energy consumption of a kind of efficiency, start and stop are convenient, adaptability for working condition is strong, compact structure is simple, noise is low, good seal performance, magnetic-suspension high-speed three-dimensional flow centrifugal blower that operation expense is little.
For achieving the above object, the technical solution adopted in the utility model is that complete machine is made up of air inlet guide vane controlling device, magnetic levitation impeller rotor portion, blower fan stationary part, magnetic suspension permanent magnet motor and shaft end seal.Air inlet guide vane controlling device is made up of regulation valve body, adjusting stator, driving mechanism, electric actuator, actuator bracket.Magnetic levitation impeller rotor portion is made up of semi-open type three-dimensional flow impeller, locking fair water cone, type thin flat key, steel bushing, magnetic suspension motor main shaft and auxiliary bearing.Blower fan stationary part is made up of front housing, middle cylinder, spiral case, inner core, impeller cover, vane diffuser, adpting flange and magnetic suspension motor support, and wherein spiral case all adopts flange and seam location to connect form with magnetic suspension motor support, inner core, middle cylinder, adpting flange.Magnetic suspension permanent magnet motor is made up of magnetic suspension motor stator, main shaft, radial magnetic bearing, axial magnetic suspension bearing, auxiliary bearing, sensor, magnetic suspension motor support.
Owing to adopting technique scheme, the utility model blower fan smaller volume, compact structure is simple, noise is low, and efficiency is high; With respect to gear up monopole centrifugal blower and Roots blower, Multi-stage low speed centrifugal blower, its unlubricated system, control system is simple.
Brief description of the drawings
Fig. 1 is the utility model magnetic-suspension high-speed three-dimensional flow centrifugal blower structure schematic diagram;
In the drawings: 1 is front housing; 2 for regulating stator; 3 is regulation valve body; 4 is driving mechanism; 5 is middle cylinder; 6 is electric actuator; 7 is actuator bracket; 8 is inner core; 9 is spiral case; 10 is impeller cover; 11 is vane diffuser; 12 is adpting flange; 13 is radial seal body; 14,19 is auxiliary bearing; 15,17 is radial magnetic bearing; 16 is magnetic suspension motor stator; 18 is axial magnetic suspension bearing; 20 is magnetic suspension motor main shaft; 21 is magnetic suspension motor base; 22 is sensor; 23 is axial seal body; 24 is steel bushing; 25 is semi-open type three-dimensional flow impeller; 26 is type thin flat key; 27 is drain plug; 28 is locking fair water cone; 29 is air inlet guide vane controlling device; 30 is magnetic levitation impeller rotor portion; 31 is blower fan stationary part; 32 is magnetic suspension permanent magnet motor; 33 is shaft end seal.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further to explanation.
The working principle of magnetic suspension permanent magnet motor (32) is: radial magnetic bearing (15, 17) with axial magnetic suspension bearing (18) in coil electricity time, the electromagnetic force producing attracts magnetic levitation impeller rotor portion (30) to central position, realize the suspension of magnetic levitation impeller rotor portion (30), magnetic suspension motor stator (16) drives magnetic levitation impeller rotor portion (30) to be rotated again, radial magnetic bearing (15 in whole working procedure, 17), axial magnetic suspension bearing (18) does not contact mutually with magnetic levitation impeller rotor portion (30), complete rotor load by integrated control system, the detection of displacement and temperature and running state are proofreaied and correct.
Magnetic-suspension high-speed three-dimensional flow centrifugal blower, it is made up of air inlet guide vane controlling device (29), magnetic levitation impeller rotor portion (30), blower fan stationary part (31), magnetic suspension permanent magnet motor (32) and shaft end seal (33); Air inlet guide vane controlling device (29) is made up of regulation valve body (3), adjusting stator (2), driving mechanism (4), electric actuator (6), actuator bracket (7); Magnetic levitation impeller rotor portion (30) is made up of semi-open type three-dimensional flow impeller (25), locking fair water cone (28), type thin flat key (26), steel bushing (24), magnetic suspension motor main shaft (20) and auxiliary bearing (14,19); Blower fan stationary part (31) is made up of front housing (1), middle cylinder (5), spiral case (9), inner core (8), impeller cover (10), vane diffuser (11), adpting flange (12), magnetic suspension motor support (21); Magnetic suspension permanent magnet motor (32) is made up of magnetic suspension motor stator (16), magnetic suspension motor main shaft (20), radial magnetic bearing (15,17), axial magnetic suspension bearing (18), auxiliary bearing (14,19), sensor (22), magnetic suspension motor support (21); Shaft end seal (33) is made up of radial seal body (13) and axial seal body (23).This blower adopts the mobile design theory of advanced ternary to carry out pneumatic design, and flow losses are little, and efficiency is high; Adopt magnetic-suspension high-speed magneto direct connection to drive, drive mechanism is simple, and transmission part is few, and machinery driving efficiency is up to more than 99%, and transmission loss is little; Magnetic suspension permanent magnet motor is being fully loaded with and the energy efficiency that can improve 10% under part loading environment compared with conventional motors.Because above feature, complete machine operational efficiency can reach more than 83%, exceeds approximately 8%～12% than general roots blower, multistage blowers efficiency, and gear up monopole centrifugal blower is high by 3%～5%.
It is upper that the semi-open type three-dimensional flow impeller (25) of magnetic-suspension high-speed three-dimensional flow centrifugal blower is directly installed on magnetic suspension motor main shaft (20), is fixed by locking fair water cone (28).Drive motor is high-speed magnetic levitation permanent magnet motor, and adopt Active Magnetic Suspending Bearing, blower operation process middle (center) bearing and rotor can be realized " contactless, nothing friction ", reduce the major sources of noise, therefore running noises is low, and do not need the lubrication and cooling of lubricant oil, thereby make main shaft must turn scooter more than 40000 revs/min.
In magnetic-suspension high-speed three-dimensional flow centrifugal blower, semi-open type three-dimensional flow impeller (25) endoporus edge steel bushing (24), connects by two type thin flat keys (26) with magnetic suspension motor main shaft (20), and the phase angle difference of two type thin flat keys (26) is 180 °.Make semi-open type three-dimensional flow impeller (25) in the time of High Rotation Speed and between magnetic suspension motor main shaft (20), coordinate tightr, non-loosening, better transmitting torque.
Regulation valve body (3) the inner flow passage outlet end of magnetic-suspension high-speed three-dimensional flow centrifugal blower is circular arc contraction shape.Make, from stator gas convergence out, evenly to enter impeller, regulation valve body material is HT250; Regulate the molded line of stator to design according to Theory of Three-dimensional Flowing, be conducive to improve flowing of gas, reduce the pressure loss of gas through air inlet guide vane controlling device, regulate stator to adopt the stainless steel integrated milling system of 316L to form, ensured intensity and the surface roughness requirement of stator.
The spiral case (9) of magnetic-suspension high-speed three-dimensional flow centrifugal blower is eccentric circular section overall structure, spiral case (9), high speed magnetic suspension motor (32) are located by seam by adpting flange (12), and employing is fixed with high strength hexagon head bolt and socket head screw.Spiral case is HT250 cast iron quality, has advantages of sqouynd absorption lowering noise, by precision casting moulding, has ensured the validity of spiral case inner flow passage molded line and the requirement of surface roughness, has greatly reduced the flow losses of air-flow in spiral case, has improved overall efficiency.
Spiral case (9) bottom of magnetic-suspension high-speed three-dimensional flow centrifugal blower is provided with blowdown tapped hole, and drain plug (27) is installed.The direction of spiral case (9) exhaust outlet can require to be rotated installation every 15 ° according to user, and is provided with blowdown tapped hole in spiral case (9) bottom, and drain plug (27) is installed, and facilitates spiral case (9) periodical blowdown.
The vane diffuser (11) of magnetic-suspension high-speed three-dimensional flow centrifugal blower is airfoil fan Diffuser, and the number of blade is 17, and vane diffuser (11) is located by seam, and is fixed on spiral case (9) with socket head screw.Lower the impact loss of blower fan internal flow at spiral case (9) upper blade Diffuser (11), air-flow has been played to good guide functions, improved the efficiency of blower.
Radial seal body (13) and the axial seal body (23) of magnetic-suspension high-speed three-dimensional flow centrifugal blower are all located by seam, and be fixed on spiral case (9) with socket head screw, radial seal body (13) and axial seal body (23) sealing tooth are all stage teeth, and the number of teeth is 8～10 teeth.Adopt radial seal body (13) and axial seal body (23) combining form, throttling action via radial and axial multiple-sealed tooth can effectively reduce air-flow velocity and air leakage, play good seal action, reduce air loss, thereby greatly improved overall efficiency.
Between the air inlet guide vane controlling device (29) of magnetic-suspension high-speed three-dimensional flow centrifugal blower and magnetic suspension permanent magnet motor (32), preparation has sensor (22).Make blower move and can carry out self-regulating and controlling under any operating mode by sensor (22), remove manual operation improper and bring the destruction in blower overall structure.
The rotating speed of magnetic-suspension high-speed three-dimensional flow centrifugal blower by Frequency Converter Control high speed magnetic suspension motor and air inlet guide vane controlling device regulate the ride quality of blower, and blower fan start and stop are convenient, property regulation haves a wide reach, regulates that efficiency is high, energy consumption is low.
The semi-open type three-dimensional flow impeller (25) of magnetic-suspension high-speed three-dimensional flow centrifugal blower adopts the solid forging of aviation high tensile aluminium alloy, milling machine shaping, and vane type line meets gas flow rule, and flow losses are little, and impeller adiabatic efficiency is high; Wheel speed reaches as high as 40000 revs/min, and blower fan reaches that the required impeller diameter of same equal pressure is little, and the rotary inertia of rotor set is little, and the blower fan start-stop time is short.
Therefore, the centrifugal drum of this magnetic-suspension high-speed three-dimensional flow is a kind of novel environment friendly, energy-conservation magnetic-suspension high-speed three-dimensional flow centrifugal blower, has the following advantages: 1, mechanical transmission loss is little, complete machine operational efficiency is high, energy consumption is low; 2, rotor moment of inertia is little, and the start-stop time is short; 3, rotating speed is adjustable, and range of flow is wide, adaptability for working condition is strong; 4, simple in structure, compact, machine volume is little, running noises is low, good seal performance; 5, blower fan drive mechanism is simple, mechanical transmission component are few, few easy workout part, and between main shaft and bearing, be " contactless, nothing friction ", the wearing and tearing of easily damaged parts are reduced, extended bearing continuous service time, the direct-drive system of oil-free lubrication can exceed the mean time between failures of 1000000 hours, does not need lubricant oil, therefore operation expense is low, can long-term safety operation.
Claims (9)
1. magnetic-suspension high-speed three-dimensional flow centrifugal blower, it is made up of air inlet guide vane controlling device (29), magnetic levitation impeller rotor portion (30), blower fan stationary part (31), magnetic suspension permanent magnet motor (32) and shaft end seal (33); It is characterized in that air inlet guide vane controlling device (29) is made up of regulation valve body (3), adjusting stator (2), driving mechanism (4), electric actuator (6), actuator bracket (7); Magnetic levitation impeller rotor portion (30) is made up of semi-open type three-dimensional flow impeller (25), locking fair water cone (28), type thin flat key (26), steel bushing (24), magnetic suspension motor main shaft (20) and auxiliary bearing (14,19); Blower fan stationary part (31) is made up of front housing (1), middle cylinder (5), spiral case (9), inner core (8), impeller cover (10), vane diffuser (11), adpting flange (12), magnetic suspension motor support (21); Magnetic suspension permanent magnet motor (32) is made up of magnetic suspension motor stator (16), magnetic suspension motor main shaft (20), radial magnetic bearing (15,17), axial magnetic suspension bearing (18), auxiliary bearing (14,19), sensor (22), magnetic suspension motor support (21); Shaft end seal (33) is made up of radial seal body (13) and axial seal body (23).
2. magnetic-suspension high-speed three-dimensional flow centrifugal blower according to claim 1, is characterized in that described semi-open type three-dimensional flow impeller (25) is directly installed on magnetic suspension motor main shaft (20) upper, is fixed by locking fair water cone (28).
3. magnetic-suspension high-speed three-dimensional flow centrifugal blower according to claim 1, it is characterized in that described semi-open type three-dimensional flow impeller (25) endoporus edge steel bushing (24), connect by two type thin flat keys (26) with magnetic suspension motor main shaft (20), the phase angle difference of two type thin flat keys (26) is 180 °.
4. magnetic-suspension high-speed three-dimensional flow centrifugal blower according to claim 1, is characterized in that described regulation valve body (3) inner flow passage outlet end is circular arc contraction shape.
5. according to the magnetic-suspension high-speed three-dimensional flow centrifugal blower described in claim 1, it is characterized in that described spiral case (9) is for eccentric circular section overall structure, spiral case (9), high speed magnetic suspension motor (32) are located by seam by adpting flange (12), and employing is fixed with high strength hexagon head bolt and socket head screw.
6. according to the magnetic-suspension high-speed three-dimensional flow centrifugal blower described in claim 1, it is characterized in that described spiral case (9) bottom is provided with blowdown tapped hole, is provided with drain plug (27).
7. magnetic-suspension high-speed three-dimensional flow centrifugal blower according to claim 1, it is characterized in that described vane diffuser (11) is airfoil fan Diffuser, the number of blade is 17, and vane diffuser (11) is located by seam, and is fixed on spiral case (9) with socket head screw.
8. magnetic-suspension high-speed three-dimensional flow centrifugal blower according to claim 1, radial seal body (13) and axial seal body (23) described in it is characterized in that are all located by seam, and be fixed on spiral case (9) with socket head screw, radial seal body (13) and axial seal body (23) sealing tooth are all stage teeth, and the number of teeth is 8～10 teeth.
9. magnetic-suspension high-speed three-dimensional flow centrifugal blower according to claim 1, is characterized in that between described air inlet guide vane controlling device (29) and magnetic suspension permanent magnet motor (32), preparation has sensor (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819058.XU CN203717391U (en) | 2013-12-13 | 2013-12-13 | Magnetic levitation high-speed tertiary flow centrifugal air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819058.XU CN203717391U (en) | 2013-12-13 | 2013-12-13 | Magnetic levitation high-speed tertiary flow centrifugal air blower |
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| CN203717391U true CN203717391U (en) | 2014-07-16 |
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| CN201320819058.XU Expired - Lifetime CN203717391U (en) | 2013-12-13 | 2013-12-13 | Magnetic levitation high-speed tertiary flow centrifugal air blower |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179708A (en) * | 2014-08-14 | 2014-12-03 | 武汉和平风机有限责任公司 | Comprehensive performance testing platform of high-speed magnetic levitation blower |
| CN104405675A (en) * | 2014-11-17 | 2015-03-11 | 南京磁谷科技有限公司 | Pressurization system of magnetic suspension fan |
| CN105351254A (en) * | 2015-12-09 | 2016-02-24 | 南京磁谷科技有限公司 | Shell of maglev air blower |
| CN106996382A (en) * | 2017-05-03 | 2017-08-01 | 黑龙江沧龙发电设备股份有限公司 | A kind of high-speed magnetic-suspension centrifugal Aeration fan and preparation method thereof |
| CN107035702A (en) * | 2017-05-03 | 2017-08-11 | 上海大学 | Vertical permanent magnet suspension monopole centrifugal blower |
| CN109281864A (en) * | 2018-11-01 | 2019-01-29 | 南通大通宝富风机有限公司 | A kind of sealing structure of magnetic suspension air blower |
| CN109356868A (en) * | 2018-12-03 | 2019-02-19 | 山东华东风机有限公司 | A kind of high-speed magnetic levitation air blower with three-dimensional flow impeller |
| CN110397605A (en) * | 2019-07-09 | 2019-11-01 | 中国航发哈尔滨东安发动机有限公司 | A kind of high-speed direct-drive centrifugation vapour compression machine device |
| CN111486115A (en) * | 2020-04-15 | 2020-08-04 | 浙江上风高科专风实业有限公司 | Direct-drive high-speed permanent magnet centrifugal blower and blower unit |
| CN111794991A (en) * | 2020-09-08 | 2020-10-20 | 山东天瑞重工有限公司 | Magnetic suspension double round air-blower |
| CN113775543A (en) * | 2021-08-19 | 2021-12-10 | 鑫磊压缩机股份有限公司 | Magnetic suspension axial flow fan with guide vane regulator |
| CN113819076A (en) * | 2021-08-19 | 2021-12-21 | 鑫磊压缩机股份有限公司 | Air duct structure of axial flow fan with regulator |
| CN113847257A (en) * | 2021-08-19 | 2021-12-28 | 鑫磊压缩机股份有限公司 | Magnetic suspension axial flow fan structure |
| WO2023015737A1 (en) * | 2021-08-11 | 2023-02-16 | 鑫磊压缩机股份有限公司 | Blower of magnetic levitation centrifuge |
-
2013
- 2013-12-13 CN CN201320819058.XU patent/CN203717391U/en not_active Expired - Lifetime
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179708B (en) * | 2014-08-14 | 2016-06-22 | 武汉和平风机有限责任公司 | Magnetic-suspension high-speed aerator combination property test desk |
| CN104179708A (en) * | 2014-08-14 | 2014-12-03 | 武汉和平风机有限责任公司 | Comprehensive performance testing platform of high-speed magnetic levitation blower |
| CN104405675A (en) * | 2014-11-17 | 2015-03-11 | 南京磁谷科技有限公司 | Pressurization system of magnetic suspension fan |
| CN104405675B (en) * | 2014-11-17 | 2016-08-24 | 南京磁谷科技有限公司 | The pressure charging system of magnetic suspension blower fan |
| CN105351254A (en) * | 2015-12-09 | 2016-02-24 | 南京磁谷科技有限公司 | Shell of maglev air blower |
| CN106996382A (en) * | 2017-05-03 | 2017-08-01 | 黑龙江沧龙发电设备股份有限公司 | A kind of high-speed magnetic-suspension centrifugal Aeration fan and preparation method thereof |
| CN107035702A (en) * | 2017-05-03 | 2017-08-11 | 上海大学 | Vertical permanent magnet suspension monopole centrifugal blower |
| CN107035702B (en) * | 2017-05-03 | 2019-10-11 | 上海大学 | Vertical permanent magnet suspension monopole centrifugal blower |
| CN109281864B (en) * | 2018-11-01 | 2023-10-13 | 南通大通宝富风机有限公司 | Sealing structure of magnetic suspension blower |
| CN109281864A (en) * | 2018-11-01 | 2019-01-29 | 南通大通宝富风机有限公司 | A kind of sealing structure of magnetic suspension air blower |
| CN109356868A (en) * | 2018-12-03 | 2019-02-19 | 山东华东风机有限公司 | A kind of high-speed magnetic levitation air blower with three-dimensional flow impeller |
| CN110397605A (en) * | 2019-07-09 | 2019-11-01 | 中国航发哈尔滨东安发动机有限公司 | A kind of high-speed direct-drive centrifugation vapour compression machine device |
| CN111486115A (en) * | 2020-04-15 | 2020-08-04 | 浙江上风高科专风实业有限公司 | Direct-drive high-speed permanent magnet centrifugal blower and blower unit |
| CN111794991A (en) * | 2020-09-08 | 2020-10-20 | 山东天瑞重工有限公司 | Magnetic suspension double round air-blower |
| WO2023015737A1 (en) * | 2021-08-11 | 2023-02-16 | 鑫磊压缩机股份有限公司 | Blower of magnetic levitation centrifuge |
| CN113775543A (en) * | 2021-08-19 | 2021-12-10 | 鑫磊压缩机股份有限公司 | Magnetic suspension axial flow fan with guide vane regulator |
| CN113819076A (en) * | 2021-08-19 | 2021-12-21 | 鑫磊压缩机股份有限公司 | Air duct structure of axial flow fan with regulator |
| CN113847257A (en) * | 2021-08-19 | 2021-12-28 | 鑫磊压缩机股份有限公司 | Magnetic suspension axial flow fan structure |
| WO2023019843A1 (en) * | 2021-08-19 | 2023-02-23 | 鑫磊压缩机股份有限公司 | Magnetic suspension axial flow fan having guide vane regulator |
| WO2023019851A1 (en) * | 2021-08-19 | 2023-02-23 | 鑫磊压缩机股份有限公司 | Air duct structure of axial flow fan having adjuster |
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