CN113623269A - Moving impeller of magnetic suspension axial flow fan - Google Patents
Moving impeller of magnetic suspension axial flow fan Download PDFInfo
- Publication number
- CN113623269A CN113623269A CN202110956590.5A CN202110956590A CN113623269A CN 113623269 A CN113623269 A CN 113623269A CN 202110956590 A CN202110956590 A CN 202110956590A CN 113623269 A CN113623269 A CN 113623269A
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- China
- Prior art keywords
- ring
- axial flow
- magnetic suspension
- flow fan
- hub
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 51
- 239000000463 material Substances 0.000 claims description 22
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 20
- 239000004917 carbon fiber Substances 0.000 claims description 20
- 239000000805 composite resin Substances 0.000 claims description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 20
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000005339 levitation Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 4
- 230000003116 impacting effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 101150080898 GPA4 gene Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
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- 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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
Abstract
The invention discloses a movable impeller of a magnetic suspension axial flow fan, which comprises a hub and blades, wherein the blades are circumferentially distributed on the hub; the hub includes: the mounting ring is connected with the rotor; the thickness of the weight reducing ring is smaller than that of the mounting ring, and the weight reducing ring is provided with a weight reducing hole; the blade ring is connected with the blades, safety rings are arranged on two sides of the blade ring and are matched with safety ring grooves on components on two sides of the hub to protect the movable impeller. When a hydraulic pull rod connecting the movable impeller and the rotor shaft deforms or even is damaged under the action of radial force, the movable impeller has a movement tendency of being pulled out in the radial direction, the safety ring is in contact with the safety ring groove, so that members on two sides of the hub can restrain the movable impeller, the blades are prevented from being damaged due to collision with other members, huge kinetic energy is prevented from directly impacting the shell, and serious accidents are avoided.
Description
Technical Field
The invention relates to an impeller, in particular to a movable impeller of a magnetic suspension axial flow fan.
Background
The fan is a machine which converts mechanical energy into gas medium kinetic energy, pushes gas to move directionally to generate kinetic energy through the rotation of blades with specific shapes, and is widely used in various occasions for cooling, moisture prevention and the like. Axial fan means that the direction of gas motion is on a parallel with the fan of rotor shaft, compares in centrifugal fan, and axial fan output's gas flow is great, and gas pressure is less. When the rotor speed of the fan is high, abrasion easily occurs, and the service life of the bearing and the rotor shaft is seriously influenced, so that the magnetic suspension fan is produced. Before the magnetic suspension fan rotates, the rotor is suspended in the rotor barrel under the action of magnetic force, and then rotates under the drive of the magnetic force, and the rotor does not directly contact with the rotor barrel in the rotating process, so that the friction force is greatly reduced, the service life of the fan is prolonged, and the maximum rotating speed of the fan is also improved.
An impeller and a rotor shaft of a fan are usually connected through a pull rod, for example, the invention patent with the name of 'a high-speed magnetic suspension fan impeller locking structure' disclosed by the publication number of CN107355419A, the lower end of the impeller is arranged in a rotor shaft end hole, a pin is arranged between the rotor shaft and the impeller, a step is arranged at a polish rod of the pull rod and matched with the impeller, a nut is arranged at the upper end of the pull rod, and a loosening taper pin is arranged between the nut and the impeller, so that the connection of the impeller and the rotor shaft is realized. When the impeller hub is large in size, an end hole cannot be formed in the rotor shaft to restrain the impeller, and the impeller and the rotor shaft are connected completely by the pull rod. Such structure has certain problem, because dynamic balance precision problem, can exert certain radial force to the pull rod when the impeller rotates, and when the impeller rotational speed was very high, this radial force can be very big, and the cantilever type pull rod receives radial force effect stability can worsen, probably takes place to warp or even is destroyed when serious, and high-speed pivoted impeller can be out of control this moment, probably leads to serious accident.
Disclosure of Invention
The invention provides a movable impeller of a magnetic suspension axial flow fan, which is provided with a safety structure, and the safety structure can limit the movement of the movable impeller when the connection between the movable impeller and a rotor shaft is abnormal, so that serious accidents are avoided.
The technical scheme of the invention is as follows:
a movable impeller of a magnetic suspension axial flow fan comprises a hub and blades, wherein the blades are circumferentially distributed on the hub; the hub includes:
the mounting ring is connected with the rotor;
the thickness of the weight reducing ring is smaller than that of the mounting ring, and the weight reducing ring is provided with a weight reducing hole;
the blade ring is connected with the blades, safety rings are arranged on two sides of the blade ring and are matched with safety ring grooves on components on two sides of the hub to protect the movable impeller.
The movable impeller of the magnetic suspension axial flow fan is large in size, connected with the rotor shaft through the hydraulic pull rod, large in rated rotating speed and 8000Rpm, when the hydraulic pull rod deforms or is damaged under the action of radial force, the movable impeller has a motion trend of being separated from the movable impeller along the radial direction, the safety ring can be in contact with the safety ring groove, the movable impeller is restrained by the components on the two sides of the hub, the blades are prevented from being collided with other components to cause damage, the shell is prevented from being directly impacted by huge kinetic energy, and serious accidents are avoided.
Preferably, the cross-sectional shape of the safety ring is arcuate. The cross-sectional shape of safety ring is bow-shaped, so be favorable to increasing the area of contact of safety ring and safety ring groove, reduces the stress concentration of safety ring and safety ring groove department, improves the protective effect of safety ring to the movable vane wheel of the magnetic suspension axial fan of this scheme.
Preferably, the width of the safety ring is 3 mm-5 mm, and the height of the safety ring is 1.5 mm-2.5 mm. The width of safety ring is big more, highly high more, and then its intensity is big more, and the power that can bear is big more, and is better to the protective effect of the movable vane wheel of the magnetic suspension axial fan of this scheme, and the processing degree of difficulty is big more simultaneously, and the assembly degree of difficulty is big more, and the intensity weakening to both sides component is big more, therefore the width and the height of safety ring should suitably take the value.
Preferably, the clearance between the safety ring and the safety ring grooves on the two side members of the hub is greater than or equal to the clearance between the rotor and the rotor barrel. The rotor is supported by the rotor barrel when the rotor stops rotating, the gap between the rotor and the rotor barrel refers to the gap between the rotor and the rotor barrel when the rotor works, and the gap between the safety ring and the safety ring grooves on the components on the two sides of the hub is larger than or equal to the gap between the rotor and the rotor barrel, so that the contact abrasion between the safety ring and the safety ring grooves when the rotor falls back is avoided.
Preferably, the bottom edge of the blade is provided with a fillet. The moving impeller of the magnetic suspension axial flow fan has a large rated rotating speed of 8000Rpm, the bottom edge of the blade is provided with a fillet so as to reduce stress concentration at the bottom edge of the blade and reduce the possibility that the bottom edge of the blade is damaged by centrifugal force.
Preferably, the hub and blades are integrally formed. Wheel hub and blade integrated into one piece, the movable impeller intensity of the magnetic suspension axial fan of this scheme is high like this, has reduced the possibility that centrifugal force destroys the movable impeller of the magnetic suspension axial fan of this scheme.
Preferably, the hub and blades are made of a carbon fiber resin composite material. The carbon fiber resin composite material has low density, so that the mass of the movable impeller of the magnetic suspension axial flow fan is favorably reduced, and the centrifugal force of the movable impeller of the magnetic suspension axial flow fan in the scheme during rotation is reduced; the carbon fiber resin composite material has high tensile strength, so that the possibility that the movable impeller of the magnetic suspension axial flow fan is damaged by centrifugal force is reduced; the carbon fiber resin composite material has good corrosion resistance and can adapt to complex working conditions. Therefore, the carbon fiber resin composite material is suitable for manufacturing the movable impeller of the magnetic suspension axial flow fan.
Preferably, the carbon fiber resin composite material has an elastic modulus of 3.5GPa to 4GPa and a density of 1g/mm3~1.2g/mm3And the tensile strength is greater than or equal to 500 MPa. The elastic modulus of the carbon fiber resin composite material is a large value so as to reduce the deformation of the movable impeller of the magnetic suspension axial flow fan in the scheme during working and ensure the working stability of the movable impeller; the density of the carbon fiber resin composite material should be properly selected, so that the mass of the movable impeller of the magnetic suspension axial flow fan is reduced while the strength of the material is ensured; the tensile strength of the carbon fiber resin composite material should be a large value so as to reduce the possibility that centrifugal force damages the movable impeller of the magnetic suspension axial flow fan.
Preferably, the mass excavated by the lightening hole is 0.2-0.3 of the mass of the prime impeller. The larger the mass of the lightening holes dug out is, the smaller the centrifugal force when the movable impeller of the magnetic suspension axial flow fan rotates is, the lower the assembly difficulty of the movable impeller of the magnetic suspension axial flow fan is, but the mass of the lightening holes dug out cannot be too large, so that the strength of the movable impeller of the magnetic suspension axial flow fan is ensured.
The invention has the beneficial effects that: it has set up the safety ring, when the hydraulic pressure pull rod takes place the deformation under the radial force effect and is destroyed even, the safety ring can contact with the safety ring groove, so wheel hub both sides component can retrain this moving impeller, avoids blade and other component collisions to lead to damaging, avoids huge kinetic energy direct impact casing, avoids appearing serious accident.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a schematic view of the present invention within a fan.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
In the figure:
the structure comprises a hub 1, a mounting ring 1.1, a lightening ring 1.2, lightening holes 1.3, a blade ring 1.4 and a safety ring 1.5;
a blade 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections, either mechanical or electrical, or communicating with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1, 2, 3 and 4, the movable impeller of the magnetic levitation axial flow fan comprises a hub 1 and blades 2, wherein the blades 2 are circumferentially distributed on the hub 1; the hub 1 includes:
the mounting ring 1.1 is connected with the rotor;
the weight reducing ring 1.2 is characterized in that the thickness of the weight reducing ring 1.2 is smaller than that of the mounting ring 1.1, and weight reducing holes 1.3 are formed in the weight reducing ring 1.2;
the blade ring 1.4, the blade ring 1.4 is connected with blade 2, and blade ring 1.4 both sides are equipped with the safety ring 1.5, and the safety ring 1.5 is with the safety ring groove adaptation on the component of hub 1 both sides in order to protect the movable vane wheel.
The moving impeller of the magnetic suspension axial flow fan of the embodiment has the following design requirements on the fan: and carrying out speed cultivation/h on the rotor at the rated rotation speed of 8000Rpm, the maximum gas pressure of 10kPa and the maximum flow rate of 29500 m. In order to meet the design requirements, the blades of the movable impeller of the magnetic suspension axial flow fan are designed by a three-dimensional flow method, the surface precision of the blades is 6 grades, and the dynamic balance requirement of the movable impeller is G1.0 due to the large rated rotating speed of the movable impeller.
The movable impeller of the magnetic suspension axial flow fan is large in size, is connected with a rotor shaft through the hydraulic pull rod, is large in rated rotating speed and is 8000Rpm, when the hydraulic pull rod deforms or even is damaged under the action of radial force, the movable impeller has a movement trend of being separated from the movable impeller along the radial direction, the safety ring 1.5 is in contact with the safety ring groove, the movable impeller is restrained by members on two sides of the hub, the blades 2 are prevented from being collided with other members to cause damage, huge kinetic energy is prevented from directly impacting a shell, and serious accidents are avoided.
Further, the cross-sectional shape of the safety ring 1.5 is arcuate. The section of the safety ring 1.5 is arc-shaped, so that the contact area between the safety ring 1.5 and the safety ring groove is increased, the stress concentration at the positions of the safety ring 1.5 and the safety ring groove is reduced, and the protection effect of the safety ring 1.5 on the movable impeller of the magnetic suspension axial flow fan in the embodiment is improved.
Furthermore, the width of the safety ring 1.5 is 3 mm-5 mm, and the height of the safety ring 1.5 is 1.5 mm-2.5 mm. The larger the width of the safety ring 1.5 is, the higher the height is, the larger the strength is, the larger the bearable force is, the better the protection effect on the movable impeller of the magnetic suspension axial flow fan in the embodiment is, the larger the processing difficulty is, the larger the assembly difficulty is, and because the safety ring 1.5 is matched with the safety ring groove, the larger the strength weakening of the components on the two sides is, and therefore the width and the height of the safety ring 1.5 are properly taken as values.
Further, the clearance between the safety ring 1.5 and the safety ring grooves on the two side members of the hub 1 is larger than or equal to the clearance between the rotor and the rotor barrel. The rotor is supported by the rotor barrel when the rotor stops rotating, the gap between the rotor and the rotor barrel refers to the gap between the rotor and the rotor barrel when the rotor works, and the gap between the safety ring 1.5 and the safety ring grooves on the components on the two sides of the hub is larger than or equal to the gap between the rotor and the rotor barrel, so that the contact abrasion between the safety ring 1.5 and the safety ring grooves when the rotor falls back is avoided.
Further, the bottom edge of the blade 2 is provided with a fillet. The moving impeller of the magnetic suspension axial flow fan of the embodiment has a large rated rotating speed of 8000Rpm, and the bottom edge of the blade 2 is provided with the fillet, so that the stress concentration of the bottom edge of the blade 2 can be reduced, and the possibility that the bottom edge of the blade 2 is damaged by centrifugal force is reduced.
Further, the hub 1 and the blades 2 are integrally formed. Hub 1 and blade 2 integrated into one piece compare in welding, riveting, and integrated into one piece's intensity is big, has reduced the possibility that centrifugal force destroys the movable vane wheel of the magnetic suspension axial fan of this embodiment.
Further, the hub 1 and the blades 2 are made of a carbon fiber resin composite material. The density of the carbon fiber resin composite material is low, so that the mass of the movable impeller of the magnetic suspension axial flow fan in the embodiment is favorably reduced, and the centrifugal force of the movable impeller of the magnetic suspension axial flow fan in the embodiment during rotation is reduced; the carbon fiber resin composite material has high tensile strength, so that the possibility that the movable impeller of the magnetic suspension axial flow fan in the embodiment is damaged by centrifugal force is reduced; the carbon fiber resin composite material has good corrosion resistance and can adapt to complex working conditions. Therefore, the carbon fiber resin composite material is suitable for manufacturing the movable impeller of the magnetic suspension axial flow fan of the embodiment.
Furthermore, the elastic modulus of the carbon fiber resin composite material is 3.5 GPa-4 GPa, and the density is 1g/mm3~1.2g/mm3And the tensile strength is greater than or equal to 500 MPa. The elastic modulus of the carbon fiber resin composite material should be a large value so as to reduce the deformation of the movable impeller of the magnetic suspension axial flow fan in the embodiment during working and ensure the working stability of the movable impeller; the density of the carbon fiber resin composite material is requiredThe material strength is ensured, and the mass of the movable impeller of the magnetic suspension axial flow fan is reduced; the tensile strength of the carbon fiber resin composite material should be a large value so as to reduce the possibility that centrifugal force damages the movable impeller of the magnetic suspension axial flow fan of the embodiment.
Furthermore, the mass of the lightening holes 1.3 is 0.2-0.3 of the mass of the original impeller. The mass of the motive impeller refers to the mass of the movable impeller of the magnetic suspension axial flow fan in the embodiment before the lightening hole 1.3 is machined, the larger the mass of the lightening hole 1.3 is, the smaller the centrifugal force of the movable impeller of the magnetic suspension axial flow fan in the embodiment when rotating is, the lower the assembly difficulty of the movable impeller of the magnetic suspension axial flow fan in the embodiment is, but the mass of the lightening hole 1.3 cannot be too large, so as to ensure the strength of the movable impeller of the magnetic suspension axial flow fan in the embodiment.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (9)
1. A movable impeller of a magnetic suspension axial flow fan comprises a hub (1) and blades (2), wherein the blades (2) are circumferentially distributed on the hub (1); characterized in that, wheel hub (1) includes:
the mounting ring (1.1), the mounting ring (1.1) is connected with the rotor;
the thickness of the weight reducing ring (1.2) is smaller than that of the mounting ring (1.1), and the weight reducing ring (1.2) is provided with weight reducing holes (1.3);
blade ring (1.4), blade ring (1.4) are connected with blade (2), and blade ring (1.4) both sides are equipped with safety ring (1.5), and safety ring (1.5) and the safety ring groove adaptation on wheel hub (1) both sides component are in order to protect the movable vane wheel.
2. The movable impeller of the magnetic suspension axial flow fan as claimed in claim 1, wherein the cross-sectional shape of the safety ring (1.5) is an arc shape.
3. The movable impeller of the magnetic suspension axial flow fan as claimed in claim 2, wherein the width of the safety ring (1.5) is 3mm to 5mm, and the height of the safety ring (1.5) is 1.5mm to 2.5 mm.
4. The movable vane wheel of the magnetic suspension axial flow fan as claimed in claim 2, wherein the clearance between the safety ring (1.5) and the safety ring groove on the two side members of the hub (1) is greater than or equal to the clearance between the rotor and the rotor barrel.
5. The movable impeller of the magnetic suspension axial flow fan as claimed in claim 1, wherein the bottom edge of the blade (2) is provided with a fillet.
6. The movable impeller of the magnetic suspension axial flow fan as claimed in claim 1, wherein the hub (1) and the blades (2) are integrally formed.
7. The movable impeller of the magnetic levitation axial flow fan as claimed in any one of claims 1 to 6, wherein the hub (1) and the blades (2) are made of carbon fiber resin composite material.
8. The movable impeller of the magnetic suspension axial flow fan as claimed in claim 7, wherein the carbon fiber resin composite material has an elastic modulus of 3.5GPa to 4GPa and a density of 1g/mm3~1.2g/mm3And the tensile strength is greater than or equal to 500 MPa.
9. The movable impeller of the magnetic suspension axial flow fan as claimed in any one of claims 1 to 6, wherein the mass of the lightening hole (1.3) is 0.2-0.3 of the mass of the original impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110956590.5A CN113623269A (en) | 2021-08-19 | 2021-08-19 | Moving impeller of magnetic suspension axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110956590.5A CN113623269A (en) | 2021-08-19 | 2021-08-19 | Moving impeller of magnetic suspension axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113623269A true CN113623269A (en) | 2021-11-09 |
Family
ID=78386801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110956590.5A Pending CN113623269A (en) | 2021-08-19 | 2021-08-19 | Moving impeller of magnetic suspension axial flow fan |
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| Country | Link |
|---|---|
| CN (1) | CN113623269A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704487A (en) * | 2022-03-30 | 2022-07-05 | 中煤科工集团重庆研究院有限公司 | Permanent magnetic suspension shaftless low-noise high-efficiency axial flow fan |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR654301A0 (en) * | 2001-07-23 | 2001-08-16 | Australian Fan & Motor Co Pty Ltd | Improvements in fans |
| CN203717364U (en) * | 2014-02-21 | 2014-07-16 | 重庆岷龙机械制造有限公司 | Pump head of residue blowdown pump of methane tank |
| CN107261231A (en) * | 2017-07-25 | 2017-10-20 | 中国医学科学院阜外医院 | A kind of Axial feedback controls magnetic levitation axial flow blood pump |
| CN209430479U (en) * | 2019-01-14 | 2019-09-24 | 浙江江潮电机实业有限公司 | A kind of unidirectional fan blade of low-loss |
-
2021
- 2021-08-19 CN CN202110956590.5A patent/CN113623269A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR654301A0 (en) * | 2001-07-23 | 2001-08-16 | Australian Fan & Motor Co Pty Ltd | Improvements in fans |
| CN203717364U (en) * | 2014-02-21 | 2014-07-16 | 重庆岷龙机械制造有限公司 | Pump head of residue blowdown pump of methane tank |
| CN107261231A (en) * | 2017-07-25 | 2017-10-20 | 中国医学科学院阜外医院 | A kind of Axial feedback controls magnetic levitation axial flow blood pump |
| CN209430479U (en) * | 2019-01-14 | 2019-09-24 | 浙江江潮电机实业有限公司 | A kind of unidirectional fan blade of low-loss |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704487A (en) * | 2022-03-30 | 2022-07-05 | 中煤科工集团重庆研究院有限公司 | Permanent magnetic suspension shaftless low-noise high-efficiency axial flow fan |
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