CN108964394A - A kind of high temperature resistant permanent magnet synchronous screen motor suitable for control rod drive mechanism - Google Patents
A kind of high temperature resistant permanent magnet synchronous screen motor suitable for control rod drive mechanism Download PDFInfo
- Publication number
- CN108964394A CN108964394A CN201811033374.8A CN201811033374A CN108964394A CN 108964394 A CN108964394 A CN 108964394A CN 201811033374 A CN201811033374 A CN 201811033374A CN 108964394 A CN108964394 A CN 108964394A
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- China
- Prior art keywords
- stator
- rotor
- permanent magnet
- control rod
- drive mechanism
- 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
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 25
- 238000004804 winding Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 239000002826 coolant Substances 0.000 abstract description 11
- 238000013461 design Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010055670 Necrotising ulcerative gingivostomatitis Diseases 0.000 description 1
- 208000006595 Necrotizing Ulcerative Gingivitis Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The present invention provides a kind of high temperature resistant permanent magnet synchronous screen motor suitable for control rod drive mechanism comprising armature spindle；The external of the armature spindle wraps up rotor core；The external of the rotor core wraps up rotor permanent magnet poles；Successively wrap up rotor shielding sleeve and stator can in the outside of the rotor permanent magnet poles；Air gap is equipped between the rotor shielding sleeve and the stator can；The external of the stator can wraps up stator core；Motor housing is wrapped up outside the stator core.High temperature resistant permanent magnet synchronous screen motor provided by the invention suitable for control rod drive mechanism, driving torque needed for control rod drive mechanism can either be provided, and effectively can be kept apart the stator of motor and rotor with reactor-loop coolant by housing.
Description
Technical field
The present invention relates to a kind of high temperature resistant permanent magnet synchronous screen motors suitable for control rod drive mechanism.
Background technique
Control rod drive mechanism is the important control system of nuclear reactor and safety system, and major function includes reaction
Starting, power regulation, shutdown and emergency shut-down of heap etc..Country's PWR nuclear power plant control rod drive mechanism all uses magnetic at present
The driving of power hoisting type, only naval reactor and high temperature gas cooled reactor use motor-driven control rod drive mechanism.
ABV, VBER and KLT series naval reactor of Russian test machines designing for manufacturing office (OKBM) are its many years
Research achievement.Wherein KLT-40 series is its most mature marinereactor, which has been nuclear-powered icebreaker in Russia
The northern most evil bad environmental work of Ross provides power, and total run time was more than 7000 heap years.Akademik Lomonosov is
The global First floating nuclear power plant of Russian nuclear power group (Rosenergoatom) design, is equipped with 2 35MWe (KLT-
40S) reactor, control rod drive mechanism execute regulatory function [KLT- using stepper motor driving rack and pinion drive mechanism
40floating nuclear heat and power unit with KLT-40s reactor plant(OKBM,
Russian Federation).In:Status of advanced light water reactor designs IAEA-
TECDOC-1391.Vienna:International Atomic Energy Agency,IAEA,2004:733-754.].It is high
Wet cold dome control rod drive mechanism also uses the position control [Wu of stepper motor dragging sprocket wheel chain progress control rod
Yuanqiang,Diao Xingzhong.et al.Design and tests for the HTR-10control rod
system,Nuclear Engineering and Design,218(2002),147–154].Existing lead screw idler wheel spiral shell peculiar to vessel
Parent form driving mechanism then uses reluctance motor to drive, and rotor directly keeps connecting with idler wheel nut, is placed in pressure boundary,
And stator is then placed in and is placed outside outside pressure-bearing shell, is cooled down by cooling device, the gap between electric machine rotor is excessive, causes
Motor delivery efficiency is low.When motor stator is built in pressure boundary, reduce air gap can greatly promote delivery efficiency with
Meet the requirement of driving torque.But due to being full of reactor-loop coolant in pressure boundary, internal stator structure needs are examined
Consider the high temperature resistant and radiation resistance of stator core winding and rotor, and the isolating problem with reactor coolant.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of high temperature resistant permanent-magnet synchronous suitable for control rod drive mechanism
Shield electric machine.
High temperature resistant permanent magnet synchronous screen motor provided by the invention suitable for control rod drive mechanism, which is characterized in that
Including armature spindle；The external of the armature spindle wraps up rotor core；The external of the rotor core wraps up rotor permanent magnet poles；
Successively wrap up rotor shielding sleeve and stator can in the outside of the rotor permanent magnet poles；The rotor shielding sleeve and described fixed
Air gap is equipped between sub- housing；The external of the stator can wraps up stator core；Package electricity outside the stator core
Machine shell.
Preferably, the armature spindle is hollow structure, and the inner surface of the armature spindle is equipped with screw thread；The screw thread and driving
Mechanism screw rod matches.
Preferably, the rotor permanent magnet poles are the mounted magnet structure in surface, are adopted as high-performance rare-earth permanent-magnetic material
Material.
Preferably, the stator core is formed for silicon steel plate packing.
Preferably, the stator core is equipped with stator winding along axial both ends, and the stator winding is concentratred winding knot
Structure, magnetic pole of the stator are no pole shoe structure, and stator rabbet is without slot wedge.
It preferably, further include stator top end cap and stator lower end cap；Stator top end cap and stator lower end
Cover rim is axially separately positioned on the both ends of the stator core, and welds with the stator can.
It preferably, further include rotor top clamping cap and rotor lower part clamping cap；Rotor top clamping cap and rotor
Lower part clamping cap is separately positioned on the both ends of the rotor core along axial direction, and welds with the rotor shielding sleeve.
It preferably, further include motor top rolling bearing and electronics lower thrust bearing；Motor top rolling bearing
Motor fixed part is separately fixed at along axial direction with electronics lower thrust bearing.
Compared with prior art, the invention has the following advantages:
1, the high temperature resistant permanent magnet synchronous screen motor provided by the invention suitable for control rod drive mechanism, can either provide
Driving torque needed for control rod drive mechanism, and can be by housing effectively by the stator of motor and rotor and reactor one
Circuit coolant is kept apart.
2, the high temperature resistant permanent magnet synchronous screen motor provided by the invention suitable for control rod drive mechanism, the permanent magnetism of motor
Body material and insulation all use high temperature resistant and Nai Gao exposed material, be able to bear temperature when being built in primary Ioops coolant and
Dosage (300 DEG C, 107Gy)。
3, the high temperature resistant permanent magnet synchronous screen motor provided by the invention suitable for control rod drive mechanism, stator is using collection
Middle winding ensure that when motor power loss that rotor can be locked in fixed position by the detent force of permanent magnet without pole shoe structure,
The rotor of motor will not be rotated since the effect of gravity is dragged by control rod drive mechanism, lead to control rod underthrust.
Detailed description of the invention
Fig. 1 is the high temperature resistant permanent magnet synchronous screen electricity suitable for control rod drive mechanism for meeting the preferred embodiment of the present invention
The radial cutaway view of machine.
Fig. 2 is the high temperature resistant permanent magnet synchronous screen electricity suitable for control rod drive mechanism for meeting the preferred embodiment of the present invention
The axial section of machine.
Wherein: 1- stator can, 2- stator winding, 3- stator core, 4- rotor permanent magnet poles, 5- rotor core,
6- armature spindle, 7- armature spindle internal screw thread, 8- rotor shielding sleeve, 9- air gap, 10- stator lower end cap, 11- stator top end cap,
12- rotor top clamping cap, 13- rotor lower part clamping cap, the top 14- rolling bearing, 15- lower thrust bearing, outside 16- motor
Shell
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, the high temperature resistant permanent-magnet synchronous screen suitable for control rod drive mechanism that one embodiment of the invention provides
Motor is covered, is built in one loop of nuclear power station reactor coolant, is each filled with reactor coolant outside motor housing and in air gap.
Stator core 3 forms for silicon steel plate packing, and stator winding 2 uses concentratred winding structure, and magnetic pole of the stator is fixed using no pole shoe structure
Pilot trench mouth is isolated by stator can 1 and motor housing 15 with reactor coolant without slot wedge, stator core and stator winding.
Stator can both ends and motor stator end supports end cap 10,11 are welded.Armature spindle 6 is hollow structure, and inside is furnished with screw thread
7, with driving mechanism screw rod cooperate, rotor rotate when, armature spindle inside thread drive screw rod, drive control rod rise or under
Drop.Rotor permanent magnet poles 4 use the mounted magnet structure in surface, and permanent magnet material is high-performance rare-earth permanent magnet material, to protect
Card has good performance and temperature coefficient.Rotor magnetic pole outer surface passes through the primary Ioops coolant in rotor shielding sleeve 8 and air gap
Isolation.Rotor shielding sleeve 8 welds at motor both ends and rotor top clamping cap 12 and lower part clamping cap 13, guarantees leakproofness.Turn
Minor structure is connect by motor top rolling bearing 14 and lower thrust bearing 15 with motor fixed part, realizes rotation.
When needing motor to rotate, stator winding 2 is powered, and magnetic pole of the stator and rotor permanent magnet poles 4 interact, driving
Motor rotation.When 2 power loss of stator winding, since motor stator is using no pole shoe structure, in different stators with respect to position
Place is set, the magnetic circuit variation of rotor permanent magnet magnetic circuit very greatly, can generate certain detent force.The location torque of rotor permanent magnet can allow
Rotor is maintained at fixed position, avoids rotor from rotating under driving mechanism screw rod gravity, control rod is caused to glide.
Compared with prior art, the present embodiment has the advantages that
1, the high temperature resistant permanent magnet synchronous screen motor provided in this embodiment suitable for control rod drive mechanism, using permanent magnetism
Synchronous shield electric machine structure, armature spindle are hollow belt helicitic texture, are engaged with the driving screw rod of control rod, and screw rod is filled with anti-rotation
It sets, rotor drive screw rises or falls, driving torque needed for can either providing control rod drive mechanism, and energy
Effectively the stator of motor and rotor are kept apart with reactor-loop coolant by housing.
2, the high temperature resistant permanent magnet synchronous screen motor provided in this embodiment suitable for control rod drive mechanism, motor is forever
Magnet material and insulation all use high temperature resistant and Nai Gao exposed material, are able to bear temperature when being built in primary Ioops coolant
With dosage (300 DEG C, 107Gy)。
3, the high temperature resistant permanent magnet synchronous screen motor provided in this embodiment suitable for control rod drive mechanism, ensure that and work as
When motor power loss, rotor can be locked in fixed position by the detent force of permanent magnet, and the rotor of motor will not be due to gravity
Effect is dragged by control rod drive mechanism to rotate, and leads to control rod underthrust.
Those skilled in the art can use different methods to achieve the described function each specific application, but
It is that such implementation should not be considered as beyond the scope of the present invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from spirit of the invention to invention
And range.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies range it
Interior, then the invention is also intended to include including these modification and variations.
Claims (8)
1. a kind of high temperature resistant permanent magnet synchronous screen motor suitable for control rod drive mechanism, which is characterized in that including armature spindle；
The external of the armature spindle wraps up rotor core；The external of the rotor core wraps up rotor permanent magnet poles；The rotor is forever
Successively wrap up rotor shielding sleeve and stator can in the outside of magnet poles；The rotor shielding sleeve and the stator can it
Between be equipped with air gap；The external of the stator can wraps up stator core；Motor housing is wrapped up outside the stator core.
2. being suitable for the high temperature resistant permanent magnet synchronous screen motor of control rod drive mechanism as described in claim 1, feature exists
In the armature spindle is hollow structure, and the inner surface of the armature spindle is equipped with screw thread；The screw thread and driving mechanism screw rod phase
Match.
3. being suitable for the high temperature resistant permanent magnet synchronous screen motor of control rod drive mechanism as described in claim 1, feature exists
In the rotor permanent magnet poles are the mounted magnet structure in surface, are adopted as high-performance rare-earth permanent magnet material.
4. being suitable for the high temperature resistant permanent magnet synchronous screen motor of control rod drive mechanism as described in claim 1, feature exists
In the stator core is formed for silicon steel plate packing.
5. the high temperature resistant permanent magnet synchronous screen motor described in claim 1 suitable for control rod drive mechanism, which is characterized in that
The stator core is concentratred winding structure along stator winding, the stator winding is axially arranged with, and magnetic pole of the stator is no pole shoe knot
Structure, stator rabbet is without slot wedge.
6. the high temperature resistant permanent magnet synchronous screen motor according to claim 1 suitable for control rod drive mechanism, feature
It is, further includes stator top end cap and stator lower end cap；Stator top end cap and stator lower end cap are along axial point
The both ends of the stator core are not set, and are welded with the stator can.
7. the high temperature resistant permanent magnet synchronous screen motor according to claim 1 suitable for control rod drive mechanism, feature
It is, further includes rotor top clamping cap and rotor lower part clamping cap；Rotor top clamping cap and rotor lower part clamping cap
It is separately positioned on the both ends of the rotor core along axial direction, and is welded with the rotor shielding sleeve.
8. the high temperature resistant permanent magnet synchronous screen motor according to claim 1 suitable for control rod drive mechanism, feature
It is, further includes motor top rolling bearing and electronics lower thrust bearing；Motor top rolling bearing and electronics lower part
Thrust bearing is separately fixed at motor fixed part along axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033374.8A CN108964394A (en) | 2018-09-05 | 2018-09-05 | A kind of high temperature resistant permanent magnet synchronous screen motor suitable for control rod drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033374.8A CN108964394A (en) | 2018-09-05 | 2018-09-05 | A kind of high temperature resistant permanent magnet synchronous screen motor suitable for control rod drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108964394A true CN108964394A (en) | 2018-12-07 |
Family
ID=64475943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811033374.8A Pending CN108964394A (en) | 2018-09-05 | 2018-09-05 | A kind of high temperature resistant permanent magnet synchronous screen motor suitable for control rod drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108964394A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510858A (en) * | 2020-11-12 | 2021-03-16 | 珠海格力电器股份有限公司 | Motor and air conditioner |
| CN116110621A (en) * | 2023-04-13 | 2023-05-12 | 清华大学 | High-temperature gas cooled reactor control rod system and damper |
| CN117155026A (en) * | 2023-10-31 | 2023-12-01 | 上海核工程研究设计院股份有限公司 | High-temperature-resistant high-pressure-resistant permanent magnet synchronous shielding controllable motor and working method thereof |
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| CN201194350Y (en) * | 2008-04-02 | 2009-02-11 | 天津神川机电有限公司 | High-temperature motor shielding enclosure construction for shielding pump |
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| CN202391786U (en) * | 2011-11-25 | 2012-08-22 | 沈阳工业大学 | Shielding sleeve for shield pump |
| CN107040075A (en) * | 2017-01-03 | 2017-08-11 | 中国矿业大学 | A kind of liquid immersion type pump |
| CN209462237U (en) * | 2018-09-05 | 2019-10-01 | 上海核工程研究设计院有限公司 | A kind of high temperature resistant permanent magnet synchronous screen motor suitable for control rod drive mechanism |
-
2018
- 2018-09-05 CN CN201811033374.8A patent/CN108964394A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201194350Y (en) * | 2008-04-02 | 2009-02-11 | 天津神川机电有限公司 | High-temperature motor shielding enclosure construction for shielding pump |
| CN101701583A (en) * | 2009-11-24 | 2010-05-05 | 江苏大学 | Frequency-conversion high-speed permanent magnet shield pump |
| CN202391786U (en) * | 2011-11-25 | 2012-08-22 | 沈阳工业大学 | Shielding sleeve for shield pump |
| CN102647047A (en) * | 2012-05-22 | 2012-08-22 | 哈尔滨电气动力装备有限公司 | Shielded motor for reactor coolant pump |
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| CN209462237U (en) * | 2018-09-05 | 2019-10-01 | 上海核工程研究设计院有限公司 | A kind of high temperature resistant permanent magnet synchronous screen motor suitable for control rod drive mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510858A (en) * | 2020-11-12 | 2021-03-16 | 珠海格力电器股份有限公司 | Motor and air conditioner |
| CN112510858B (en) * | 2020-11-12 | 2021-10-22 | 珠海格力电器股份有限公司 | Motor and air conditioner |
| CN116110621A (en) * | 2023-04-13 | 2023-05-12 | 清华大学 | High-temperature gas cooled reactor control rod system and damper |
| CN117155026A (en) * | 2023-10-31 | 2023-12-01 | 上海核工程研究设计院股份有限公司 | High-temperature-resistant high-pressure-resistant permanent magnet synchronous shielding controllable motor and working method thereof |
| CN117155026B (en) * | 2023-10-31 | 2024-01-26 | 上海核工程研究设计院股份有限公司 | High-temperature-resistant high-pressure-resistant permanent magnet synchronous shielding controllable motor and working method thereof |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |