CN201228655Y - Magnetic suspension transformer oil pump - Google Patents
Magnetic suspension transformer oil pump Download PDFInfo
- Publication number
- CN201228655Y CN201228655Y CNU2008200140098U CN200820014009U CN201228655Y CN 201228655 Y CN201228655 Y CN 201228655Y CN U2008200140098 U CNU2008200140098 U CN U2008200140098U CN 200820014009 U CN200820014009 U CN 200820014009U CN 201228655 Y CN201228655 Y CN 201228655Y
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- magnet
- fixed
- shell
- magnetic
- 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 - Lifetime
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 14
- 235000012054 meals Nutrition 0.000 abstract 1
- 239000002923 metal particle Substances 0.000 abstract 1
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000013528 metallic particle Substances 0.000 description 6
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A magnetic-suspension transformer oil pump belongs to transformer components, which is adaptable to a high-voltage large-capacity power transformer. The magnetic-suspension transformer is structurally characterized in that magnetic-suspension thrust bearings are mounted among two axial ends of a rotating shaft and an outer casing or an end cover of the outer casing, rotating-shaft radial magnetic-suspension bearings are mounted among the two axial ends of the rotating shaft and the outer casing or the end cover of the outer casing, a positive impeller wheel and a negative impeller wheel which are symmetrical are respectively mounted on rotating shafts at two axial sides of a rotor winding, filter screens are respectively mounted at an oil inlet and an oil outlet, and a magnetic ring is mounted on an axial oil outlet pipe. The utility model avoids problems that in the prior art, the safe operation of the transformer is destroyed because of generating meal or non-metal particles.
Description
Technical field
The utility model belongs to a kind of parts in the transformer oil cooling system, is specially adapted to the high voltage large capcity power transformer.
Background technique
At present, used transformer oil pump is that the centrifugal impeller of the motor that is equipped with in the enclosure and its rotor one end and filler opening and oil outlet are formed in the forced oil-circulation cooling system of the oil-filled power transformer of high voltage large capcity.The technical problem of its existence is: because it is equipped with the mechanical bearing of rotation, therefore is in operation and produces metal or non-metallic particle inevitably; Again because the centrifugal pump that forms between its centrifugal impeller and shell one end, being in operation exists cavitation phenomenon between impeller and shell, so also produces metal granule inevitably.Above-mentioned these metals or non-metallic particle, particularly metal granule are in case enter into the significant trouble that the stronger position of transformer electric field just might cause transformer to burn.
Summary of the invention
Be to solve the technical problem that exists in the prior art, the utility model will provide a kind of and avoid producing metal or non-metallic particle, guarantee the magnetic suspension transformer oil pump of transformer safe operation more reliably.
The technical solution of the utility model is: comprise shell, end cap, staor winding, the rotor winding, rotating shaft, its special way is: be fixed with and the relative axial fixed magnet of rotating shaft end magnet homopolarity with the corresponding position of rotating shaft end magnet with end cap at shell or shell to being fixed with rotating shaft end magnet respectively in the two end axles of rotating shaft, constitute rotating shaft end magnetic suspension thrust bearing, be fixed with respectively on the radial circumference at rotating shaft two end part make the identical rotating shaft radial magnet of its periphery polarity with the end cap inside circumference of the shell of rotating shaft radial magnet corresponding position or shell on be fixed with the radially fixed magnet relative with rotating shaft radial magnet homopolarity, constitute the rotating shaft radial magnetic bearing, in the rotating shaft of rotor axis of winding both sides, be equipped with respectively and make oil stream axial flow to two ends and symmetrical positive impeller and anti-impeller; In the inlet of oil inlet pipe and the outlet port of oil outlet tube filter screen is housed respectively, magnet ring also is housed respectively on axial two oil outlet tubes.
The utility model beneficial effect compared with the prior art is:
1, because the utility model is fixed with and the relative axial fixed magnet of rotating shaft end magnet homopolarity with the corresponding position of rotating shaft end magnet with end cap at shell or shell to respectively being fixed with rotating shaft end magnet in the two end axles of rotating shaft, constitute rotating shaft end magnetic suspension thrust bearing, be fixed with respectively on the radial circumference at rotating shaft two end part make the identical rotating shaft radial magnet of its periphery polarity with the shell of rotating shaft radial magnet corresponding position or end cap inside circumference on be fixed with the radially fixed magnet relative with rotating shaft radial magnet homopolarity, constitute the diameter of axle to magnetic suspension bearing, because the homopolar-repulsion of magnet, so just can make rotating shaft and on the rotor winding, be in magnetic suspension state between positive impeller and anti-impeller etc. and staor winding and shell or end cap etc., eliminated the metal or the non-metallic particle that produce because of the mechanical bearing wearing and tearing in the prior art; Again owing to adopted two symmetrical axial oil to flow positive impeller and anti-impeller, the metal or the non-metallic particle that produce because of cavitation erosion between centrifugal impeller and housing in the prior art have not only been reduced, and the active force that the rotation of positive impeller and anti-impeller produces is cancelled out each other, thereby the operation stability and the life-span of magnetic suspension bearing have been strengthened, therefore the utility model has been avoided generation metal or non-metallic particle to large extent, has guaranteed the safe operation of transformer more reliably.
2, again because the utility model is equipped with magnet ring and filter screen on oil outlet tube, can adsorb and leach solid particle to the magnetic conduction particle in the oil, therefore further guarantee the safe operation of transformer.
Description of drawings
Accompanying drawing is an example structure schematic representation of the present utility model.
Among the figure: 1, shell, 2, positive impeller, 3, end cap, 4, axial fixed magnet, 5, rotating shaft end magnet, 6, rotating shaft radial magnet, 7, fixed magnet radially, 8, oil outlet tube, 9, filter screen, 10, magnet ring, 11, staor winding, 12, anti-impeller, 13, oil inlet pipe, 14, the rotor winding, 15, rotating shaft.
Embodiment
With reference to accompanying drawing.The utility model comprises shell 1, end cap 3, staor winding 11, rotor winding 14, rotating shaft 15, its structure characteristic is: be fixed with and the relative axial fixed magnet 4 of rotating shaft end magnet 5 homopolarities with the corresponding position of rotating shaft end magnet 5 with end cap 3 at shell 1 or shell 1 to being fixed with rotating shaft end magnet 5 respectively in the two end axles of rotating shaft 15, constitute rotating shaft 15 end magnetic suspension thrust bearings, be fixed with respectively on the radial circumference at rotating shaft 15 two end part make the identical rotating shaft radial magnet 6 of its periphery polarity with end cap 3 inside circumference of the shell 1 of rotating shaft radial magnet 6 corresponding positions or shell 1 on be fixed with the radially fixed magnet 7 relative with rotating shaft radial magnet 6 homopolarities, rotating shaft 15 radial magnetic bearings that constitute, in the rotating shaft 15 of rotor winding 14 axial both sides, be equipped with respectively and make oil stream axial flow to two ends and symmetrical positive impeller 2 and anti-impeller 12, in the inlet of oil inlet pipe 13 and the outlet port of oil outlet tube 8 filter screen 9 is housed respectively, on axial two oil outlet tubes 8, magnet ring 10 is housed respectively also.
Claims (2)
1, magnetic suspension transformer oil pump, comprise shell, end cap, staor winding, the rotor winding, rotating shaft, it is characterized in that: be fixed with and the relative axial fixed magnet of rotating shaft end magnet homopolarity with the corresponding position of rotating shaft end magnet with end cap to being fixed with rotating shaft end magnet respectively at shell or shell in the two end axles of rotating shaft, constitute rotating shaft end magnetic suspension thrust bearing, be fixed with respectively on the radial circumference at rotating shaft two end part make the identical rotating shaft radial magnet of its periphery polarity with the end cap inside circumference of the shell of rotating shaft radial magnet corresponding position or shell on be fixed with the radially fixed magnet relative with rotating shaft radial magnet homopolarity, constitute the rotating shaft radial magnetic bearing, in the rotating shaft of rotor axis of winding both sides, be equipped with respectively and make oil stream axial flow to two ends and symmetrical positive impeller and anti-impeller.
2, magnetic suspension transformer oil pump according to claim 1 is characterized in that: in the inlet of oil inlet pipe and the outlet port of oil outlet tube filter screen is housed respectively, magnet ring also is housed respectively on axial two oil outlet tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200140098U CN201228655Y (en) | 2008-07-14 | 2008-07-14 | Magnetic suspension transformer oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200140098U CN201228655Y (en) | 2008-07-14 | 2008-07-14 | Magnetic suspension transformer oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201228655Y true CN201228655Y (en) | 2009-04-29 |
Family
ID=40633606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200140098U Expired - Lifetime CN201228655Y (en) | 2008-07-14 | 2008-07-14 | Magnetic suspension transformer oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201228655Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966574A (en) * | 2012-11-07 | 2013-03-13 | 无锡惠山泵业有限公司 | Submerged pump |
| CN104162192A (en) * | 2014-09-05 | 2014-11-26 | 长治市久安人工心脏科技开发有限公司 | Liquid levitation axial-flow type blood pump |
| TWI588370B (en) * | 2011-07-20 | 2017-06-21 | 力威磁浮技術有限公司 | Magnetic rotor and rotary pump having a magnetic rotor |
| CN116498574A (en) * | 2023-06-29 | 2023-07-28 | 鸿陆智能科技(山东)有限公司 | Magnetic suspension double suction type centrifugal compressor |
-
2008
- 2008-07-14 CN CNU2008200140098U patent/CN201228655Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI588370B (en) * | 2011-07-20 | 2017-06-21 | 力威磁浮技術有限公司 | Magnetic rotor and rotary pump having a magnetic rotor |
| CN102966574A (en) * | 2012-11-07 | 2013-03-13 | 无锡惠山泵业有限公司 | Submerged pump |
| CN104162192A (en) * | 2014-09-05 | 2014-11-26 | 长治市久安人工心脏科技开发有限公司 | Liquid levitation axial-flow type blood pump |
| CN116498574A (en) * | 2023-06-29 | 2023-07-28 | 鸿陆智能科技(山东)有限公司 | Magnetic suspension double suction type centrifugal compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201228655Y (en) | Magnetic suspension transformer oil pump | |
| CN206035859U (en) | High -speed asynchronous machine of magnetic suspension bearing directly drives centrifugal compressor | |
| CN104329202A (en) | Bulb through-flow turbine | |
| CN111478472A (en) | Rotor structure and motor and air compressor adopting same | |
| CN205207206U (en) | Miniature pump integral type magnetic drive pump based on axial motor drive | |
| CN101387300A (en) | Magnetic suspension transformer oil pump | |
| CN210423086U (en) | Speed-increasing transmission compact steam compressor | |
| CN203384095U (en) | Vortex machine | |
| CN203257701U (en) | Centrifugal inclined type axial flow fan | |
| CN203608011U (en) | A large rotational inertia flywheel | |
| CN202746281U (en) | High-speed rotor structure of centrifugal blower | |
| CN206481194U (en) | A kind of permanent magnetism double stators and double rotors high torque density hub motor device | |
| CN105863926B (en) | The magnetic suspension hydraulic turbine | |
| CN102170205B (en) | Efficient permanent magnet generator with no-iron core and multiple stator | |
| CN202483894U (en) | Magnetic pump with impurity dry-running function | |
| CN214092397U (en) | Novel fan hub structure and fan that constitutes thereof | |
| CN106015026A (en) | Integrated motor water pump | |
| CN200941577Y (en) | Radiatable closed motor | |
| CN201925237U (en) | Chemical addition agent mixing pump for nuclear power station | |
| CN108599451A (en) | A kind of augmentation of heat transfer structure of hub motor for electric automobile | |
| CN205677755U (en) | The magnetic suspension hydraulic turbine | |
| CN207719938U (en) | The mounting structure of anticollision ring in a kind of magnetic suspension motor rotor | |
| CN207297444U (en) | A kind of adjustable bearing assembly of centrifugal pump | |
| CN208236680U (en) | It is a kind of to run more stable single-stage centrifugal pump | |
| CN102214960A (en) | Permanent-magnet overlapped coreless high-efficiency motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENYANG KEQI ELECTRICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: SHAO ZHANGQING Effective date: 20101015 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 110035 NO.40, TAWAN STREET, HUANGGU DISTRICT, SHENYANG CITY, LIAONING PROVINCE TO: 110164 123-15, HUISHAN AVENUE, HUISHAN ECONOMIC DEVELOPMENT ZONE, SHENBEI NEW DISTRICT, SHENYANG CITY, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101015 Address after: Huishan Huishan street, Shenbei New Area Economic Development Zone of Shenyang city in Liaoning province 110164 123-15 Patentee after: Shenyang KEQI Electrical Equipment Co., Ltd. Address before: Thavorn street in Huanggu District of Shenyang city of Liaoning Province, No. 40 110035 Patentee before: Shao Changqing |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090429 |
|
| CX01 | Expiry of patent term |