CN104514726A - Active electromagnetic bearing impeller pump - Google Patents
Active electromagnetic bearing impeller pump Download PDFInfo
- Publication number
- CN104514726A CN104514726A CN201310456072.2A CN201310456072A CN104514726A CN 104514726 A CN104514726 A CN 104514726A CN 201310456072 A CN201310456072 A CN 201310456072A CN 104514726 A CN104514726 A CN 104514726A
- Authority
- CN
- China
- Prior art keywords
- pump
- bearing
- stator
- magnetic
- impeller
- 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
Classifications
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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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/048—Bearings magnetic; electromagnetic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an active electromagnetic bearing impeller pump. The active electromagnetic bearing impeller pump is mainly composed of a radial direction electromagnetic bearing rotor, a stator, a thrust bearing, a sensor and a bracket thereof, an impeller and a pump shell. The bearing seat and the impeller are made as an integrated body, the impeller (rotor) of the pump is embedded with the soft magnetic material (magnetic steel and the like) with good permeability, the pump shell (stator) is provided with a coil, which is connected with the electric current for generating the rotating magnetic field, driving the impeller for rotating and realizing the action of the pump. Another magnetic bearing (in radial direction and axial direction) is used for rotating and locating the main shaft and stopping the displacement in radial direction and axial direction. The rotor is soaked in the medium for rotating; the surface contacting the fluid is covered by the corrosion-resistant material, so that the pump has no sealing element of any type inside. The active electromagnetic bearing impeller pump is simple in function, the defect of the common impeller pump, which is easily worn and required to be sealed can be greatly overcome and the active electromagnetic bearing impeller pump has good application prospect.
Description
Technical field
Patent of the present invention relates to a kind of Impeller Pumps with Active Magnetic Bearings, mainly contains radial magnetic bearing rotor and the composition such as stator, thrust bearing, sensor and support thereof, impeller, pump casing.
Background technique
Common wing pump needs a lot of parts, and each part may have an impact to pump performance, and the damage of each component or the malfunctioning fault that may cause whole system, need to carry out maintenance down.Common wing pump drives owing to adopting external motor, adds the cost of use and the connection fittings of additional configuration.In addition owing to adopting common rolling bearing to carry out supporting drive shaft, all there is life-span and safety problem in the wearing and tearing of mechanical bearing itself and the sealing of bearing, and whole system needs maintenance at regular intervals and safeguards, changes easily damaged parts.
Summary of the invention
The present invention seeks to overcome the deficiency existed in existing wing pump, provide a kind of long-term No leakage to operate continuously, have the Novel leaf wheel pump of good application prospect.
According to technological scheme provided by the invention, this design Impeller Pumps with Active Magnetic Bearings is primarily of radial magnetic bearing rotor and the composition such as stator, thrust bearing, sensor and support thereof, impeller, pump casing.
One of them magnetic bearing and impeller are made an entirety by Impeller Pumps with Active Magnetic Bearings, namely on the impeller of pump, (rotor) inlays the good soft magnetic material of magnetic property (magnet steel etc.), on pump case, (stator) is equipped with coil, pass into electric current and just can produce rotating magnetic field, drives impeller rotates, and realizes the effect of pump.Other magnetic bearing (comprising radial and axial) is used for main shaft being rotated and location, stops it that radial and axial displacement occurs.Rotor soaks and rotates in media as well, all surfaces with fluid contact by resistant material covering, without any the seal element of form in this pump of ridge.
Function of the present invention is simple, overcomes the shortcoming that common wing pump is easy to wear, need sealing to a great extent.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is Active Magnetic Bearing fundamental diagram.
Embodiment
Shown in Fig. 1, Impeller Pumps with Active Magnetic Bearings is made up of shaft position sensor (1), radial displacement transducer (2), radial direction magnetic bearing stator (3) (7), axial magnetic bearing stator (4), stator coil (5), vane rotor magnet steel (6), radial direction magnetic bearing rotor (8) (9) etc.Shown in Fig. 2, a typical active magnetic bearing system is put people's device by rotor, electromagnet, sensor and control circuit and power and is formed.Bearing is made up of rotor and stator.The bias of rotor is detected by sensor, and compared by feedback and reference signal (ideal position of rotor), regulator regulates according to deviation signal, and regulated signal is delivered to power put people's device to change the electric current of electromagnet (stator), the electromagnet current making air gap increase people side increases, opposite side electromagnet current reduces, thus produces a restoring force, makes rotor return to desirable position.
Thrust bearing of the present invention is the magnetic circuit system be made up of axial electromagnetic bearings stator (3) (7), suction dish, bearing sleeve etc., produces suction to limit the axial displacement of rotating shaft.Electromagnetic bearing stator each group of electromagnet core to be fixed together by the retaining ring of non-magnet material to combine, and this magnetic circuit of ridge is independent, there is not magnetic coupling problem; In order to prevent on electromagnetic bearing stator producing magnetic coupling between each group electromagnet magnetic circuit, stator blade wheel magnetic circuit, thrust bearing magnetic circuit etc., affect quiet, the dynamic performance of electromagnetic bearing, ridge this pump housing internal surface is plated not magnetic conduction and erosion-resisting material; Pump in working order time, because the gap between rotor and stator is full of liquid, stator inner surface and rotor outer surface are by corrosion-resistant material covering, and whole pump casing is totally enclosed, any fluid composition all can not leak to outside pump, and any type of sealing there is no need.
The stator core of electromagnetic bearing of the present invention and rotor are manufactured by the soft magnetic material (silicon steel) that magnetic property is excellent; Sensor stand is for supporting displacement sensor probe, no matter be level or vertical direction, all with the displacement of two sensor differential detection rotors, these two tapped holes placing sensor in one direction of ridge must coaxial conllinear, and the axis of level and vertical direction must meet the requirement of certain perpendicularity; Impeller is formed by stainless steel material linear cutter; The inlet/outlet part of pump case is made by plexiglass, makes it possible to the runnability clearly seeing impeller.
Claims (1)
1. Impeller Pumps with Active Magnetic Bearings, it is characterized in that: this wing pump is made up of shaft position sensor (1), radial displacement transducer (2), radial direction magnetic bearing stator (3) (7), axial magnetic bearing stator (4), stator coil (5), vane rotor magnet steel (6), radial direction magnetic bearing rotor (8) (9) etc., novel thrust bearing is the magnetic circuit system be made up of axial electromagnetic bearings stator (3) (7), suction dish, bearing sleeve etc., produces suction to limit the axial displacement of rotating shaft; Electromagnetic bearing stator (4) each group of electromagnet core to be fixed together by the retaining ring of non-magnet material to combine, and therefore magnetic circuit is independent, there is not magnetic coupling problem; In order to prevent on electromagnetic bearing stator producing magnetic coupling between each group electromagnet magnetic circuit, stator blade wheel magnetic circuit, thrust bearing magnetic circuit etc., affecting quiet, the dynamic performance of electromagnetic bearing, therefore pump housing internal surface being plated not magnetic conduction and erosion-resisting material; Pump in working order time, because the gap between rotor and stator is full of liquid, stator inner surface and rotor outer surface are by corrosion-resistant material covering, and whole pump casing is totally enclosed, any fluid composition all can not leak to outside pump, and any type of sealing there is no need.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310456072.2A CN104514726A (en) | 2013-09-27 | 2013-09-27 | Active electromagnetic bearing impeller pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310456072.2A CN104514726A (en) | 2013-09-27 | 2013-09-27 | Active electromagnetic bearing impeller pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104514726A true CN104514726A (en) | 2015-04-15 |
Family
ID=52790484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310456072.2A Pending CN104514726A (en) | 2013-09-27 | 2013-09-27 | Active electromagnetic bearing impeller pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104514726A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105477706A (en) * | 2016-01-14 | 2016-04-13 | 山东大学 | Double-stator hybrid supporting artificial heart pump |
| CN106996388A (en) * | 2017-06-06 | 2017-08-01 | 苏州市玄天环保科技有限公司 | A kind of Impeller Pumps with Active Magnetic Bearings of sewage disposal device |
| CN109281846A (en) * | 2017-07-19 | 2019-01-29 | Lg电子株式会社 | Compressor and cooling system including it |
| CN109510369A (en) * | 2017-09-14 | 2019-03-22 | 雷勃美国公司 | Centrifugal pump assemblages and its assemble method with axial flux motor |
| CN111828336A (en) * | 2019-04-15 | 2020-10-27 | 孟想 | Ultra-silent zero-leakage nuclear main pump/fan compressor integrated design scheme |
| CN115025387A (en) * | 2022-07-08 | 2022-09-09 | 深圳核心医疗科技有限公司 | Drive device and blood pump |
-
2013
- 2013-09-27 CN CN201310456072.2A patent/CN104514726A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105477706A (en) * | 2016-01-14 | 2016-04-13 | 山东大学 | Double-stator hybrid supporting artificial heart pump |
| CN105477706B (en) * | 2016-01-14 | 2018-01-26 | 山东大学 | Bimorph transducer mixing bearing artificial heart pump |
| CN106996388A (en) * | 2017-06-06 | 2017-08-01 | 苏州市玄天环保科技有限公司 | A kind of Impeller Pumps with Active Magnetic Bearings of sewage disposal device |
| CN109281846A (en) * | 2017-07-19 | 2019-01-29 | Lg电子株式会社 | Compressor and cooling system including it |
| CN109510369A (en) * | 2017-09-14 | 2019-03-22 | 雷勃美国公司 | Centrifugal pump assemblages and its assemble method with axial flux motor |
| CN109510369B (en) * | 2017-09-14 | 2022-08-23 | 雷勃美国公司 | Centrifugal pump assembly with axial flux motor and method of assembling the same |
| CN111828336A (en) * | 2019-04-15 | 2020-10-27 | 孟想 | Ultra-silent zero-leakage nuclear main pump/fan compressor integrated design scheme |
| CN115025387A (en) * | 2022-07-08 | 2022-09-09 | 深圳核心医疗科技有限公司 | Drive device and blood pump |
| CN115025387B (en) * | 2022-07-08 | 2023-05-30 | 深圳核心医疗科技股份有限公司 | Driving device and blood pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150415 |