CN208970187U - Protection type CRDM and the spacer on CRDM - Google Patents
Protection type CRDM and the spacer on CRDM Download PDFInfo
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- CN208970187U CN208970187U CN201821038678.9U CN201821038678U CN208970187U CN 208970187 U CN208970187 U CN 208970187U CN 201821038678 U CN201821038678 U CN 201821038678U CN 208970187 U CN208970187 U CN 208970187U
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- spacer
- crdm
- reducer
- motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model discloses a kind of protection type CRDM and the spacer on CRDM, including spacer ontology, the material of the spacer ontology is magnetic conductivity stainless steel.For in the protection type CRDM, the spacer can not only play under hot and humid environment to the protective value of motor-type CRDM the spacer, while the spacer is in the case where stator winding power is constant, can normal driving C&P systems.
Description
Technical field
The utility model relates to control rod drive mechanism technical fields, more particularly to a kind of protection type CRDM and are used for
Spacer on CRDM.
Background technique
CRDM is the abbreviation of " control rod drive mechanism ", it is the servo mechanism of reactor control and protection system, can
It drives C&P systems in the up and down motion of heap in-core according to instruction, C&P systems is kept to release the control in specified altitude assignment, power-off
Rod assembly simultaneously makes its quick insertion reactor core, and then completes the starting of reactor, regulation power, keeps power, normal shutdown and thing
Therefore the functions such as shutdown.
Currently, the CRDM in Marine Nuclear Power Plant reactor is mostly motor-type CRDM, however, motor-type in the prior art
CRDM haves the shortcomings that high failure rate, inconvenient for use.In the prior art, the optimization design about motor-type CRDM, occur as
Application No. is: CN201721371157.0, patent name are as follows: a kind of technical solution of shield electric machine type CRDM, the technical solution
In include technical characteristic spacer, spacer has been actually the housing of shielding action, which, which includes, avoids high temperature and humidity
Various challenges caused by CRDM decreasing insulating, electrical material are gone mouldy under environment are reactor on the water and high temperature are high
Reliably working such as provides a strong guarantee at the advantages under wet environment.
The performance for advanced optimizing motor-type CRDM is that those skilled in the art optimize control rod drive mechanism
Important directions.
Utility model content
It is that those skilled in the art drive control rod for the performance for advanced optimizing motor-type CRDM set forth above
The problem of important directions that mechanism optimizes, the utility model provide a kind of protection type CRDM and on CRDM every
Set, the spacer is in motor-type CRDM, the spacer can not only to be played under hot and humid environment to motor-type CRDM's
Protective value, while the spacer is in the case where stator winding power is constant, it can normal driving C&P systems.
Protection type CRDM provided by the utility model and the spacer on CRDM solve to ask by following technical essential
Topic, the spacer on CRDM, including spacer ontology, the material of the spacer ontology are magnetic conductivity stainless steel.
This spacer is in motor-type CRDM.In the prior art, stator component generally comprises base, determines on motor-type CRDM
Sub- winding and end cap, stator winding include winding ontology and stator core, and electric connector is also connected on stator winding, electrical connection
Device is typically secured on base, and encapsulating layer is generally additionally provided in the installation cavity for installing stator component, motor-type CRDM's
Mover component is mounted in pneumatic shell.Due to the special working environment of motor-type CRDM, designed for the structure of motor-type CRDM,
Proposing in the prior art a kind of includes spacer, for realizing by stator winding on stator component and extraneous hot and humid environment
Isolation can eliminate the side of various challenges caused by CRDM decreasing insulating under hot and humid environment, electrical material mildew
Case.
In the prior art, austenitic stainless steel is mostly used for the material of spacer, however, since austenitic stainless steel is one
Kind non-magnet material, therefore spacer, while stator component on playing protection motor-type CRDM, spacer influences the electromagnetism effect of CRDM
Rate.For this problem, in the prior art, motor-type CRDM for original no spacer or the motor-type for being designed as no spacer
CRDM is installed after spacer or using the function after having the motor-type CRDM of spacer, needed by increasing motor-type CRDM stator component
Rate enables motor-type CRDM normally to complete normal driving C&P systems.
In the present solution, magnetic conductivity stainless steel can not only fit by setting the material of spacer to for magnetic conductivity stainless steel
The working environment of motor-type CRDM is answered, simultaneously because the magnetic property of magnetic stainless steel, is compared for the spacer of magnetic conductivity stainless steel
In the spacer for austenitic stainless steel, can avoid that motor-type CRDM electromagnetic efficiency is caused to decline, thus, do not changing motor-type
In the case where CRDM stator component power, so that the performance of motor-type CRDM meets working condition requirement.
Preferably, setting are as follows: the spacer is seamless thin wall pipe, in this way, being conducive to magnetic in motor-type CRDM circumferential direction
The uniformity of field distribution.
Specifically, the above magnetic conductivity stainless steel can be used following stainless steel in the prior art: martensitic stain less steel, two-way
Body stainless steel, permalloy etc..
As the further technical solution of the spacer are as follows:
One end of the spacer ontology is provided with reducer in the shape of a trumpet, and the big end of the reducer is as spacer
End.
Spacer is traditionally arranged to be in isometrical cylindrical shape in the prior art, specific to use are as follows: the upper end of spacer is fixed with base
Connection, the lower end of spacer is fixedly connected with end cap, and spacer, base, end cap three, which surround, closed to be used to install stator winding
Installation cavity.Simultaneously as motor-type CRDM weight is larger, base, spacer, end cap, stator component are being connected into one
After entirety, the assembly of part pneumatic shell where motor-type CRDM stator component is generally realized by way of lifting, in this way, due to
Internal diameter of spacer itself and pneumatic shell compatible portion outer diameter difference are very small, while the motor-type CRDM stator component being suspended is easily
It shakes, in this way, during the motor-type CRDM stator component being suspended discharges downwards, on spacer lower end and pneumatic shell
End centering difficulty is high: spacer lower end easily causes spacer to be damaged with the collision of pneumatic shell upper end, not only influences motor-type in this way
The assembly efficiency of CRDM, while spacer is easy to appear after period of assembly is scrapped, completes the assembly of spacer, spacer can not
The problem of playing ideal isolation performance.
For scheme provided above when using, spacer is provided with lower end of the one end as spacer of bell mouth shape reducer,
When spacer is installed on motor-type CRDM, spacer is located in hole section that end cap surrounds or positioned at the lower section of end cap, and conduct
Those skilled in the art, the internal diameter of reducer above section meets the cooperation with pneumatic shell, reducer on spacer on spacer
Size or the structure design of above section use design in the prior art, are being assembled using the spacer that this programme provides
When, since deformation section bottom diameter is greater than the internal diameter of spacer paragraph above reducer, when carrying out motor-type CRDM assembly, due to
Pneumatic shell needs are introduced into spacer by the reducer of spacer, as discharged downwards for the first time as the motor-type CRDM where stator component
When spacer and pneumatic shell collision occurs, position of collision is located on reducer inner wall, and reducer inner wall surface is relative to resistance at this time
The end face of pressure shell is an inclined-plane, can realize the guiding between spacer and pneumatic shell with ramp, not only can effectively avoid in this way
Spacer and pneumatic shell have an effect power direction in the sharp impacts of vertical direction, cause spacer substantially to deform or rupture, same to time-varying
Diameter section can be used for spacer and pneumatic shell centering guiding, intuitively adjust the position of the motor-type CRDM being suspended in the horizontal plane with
So that the accuracy of alignment with pneumatic shell is constantly further improved, it is conducive to motor-type CRDM assembly efficiency.
As the specific implementation of spacer, the spacer is made of isometrical straight pipe and reducer, the diameter of reducer
Small end connects with the end of isometrical straight pipe, and the diameter small end of reducer and isometrical straight pipe are isometrical.
When motor-type CRDM as where realizing stator component by lifting discharge downwards with pneumatic shell cooperation, general the
Spacer and pneumatic shell hit interaction force maximum, and the installation site of reducer is located in the hole section that end cap surrounds or position
In the lower section of end cap, in this way, according to the structure of existing motor-type CRDM: base, spacer, end cap, stator component are connected into
Assembly in, from top to bottom, until the upper end of end cap starts, the gap for accommodating spacer becomes wider, thus be arranged are as follows: institute
The wall thickness for stating reducer is greater than the wall thickness of isometrical straight pipe.The wall thickness of reducer is bigger compared to the spacer paragraph wall thickness of upper end,
When the above shock occurs, the thicker reducer of wall thickness can guarantee the integrity of spacer entirety as far as possible, so that spacer performance can
The shielding properties leaned on.It is smoothly connected preferably, being set as reducer with isometrical straight pipe medial and lateral surface, in this way, pressure-resistant
When shell and reducer are hit, it can avoid reducer and isometrical straight pipe part stress occur and concentrates and cause under isometrical straight pipe
Plastic deformation even tearing etc. occurs for end.
It is motor-type CRDM, including stator component the invention also discloses a kind of protection type CRDM, the CRDM, goes back
Including the spacer being mounted in stator component centre bore, the spacer is one spacer provided of any of the above.This programme provides
Protection type CRDM, can be in the case where not changing motor-type CRDM stator component power, so that the performance of motor-type CRDM is full
Sufficient working condition requirement.
As the further technical solution of protection type CRDM:
Reducer is provided on the spacer, one end that reducer is provided on spacer is lower end, and the other end of spacer is
Upper end；
The stator component includes base, and the upper end of spacer is across the installation cavity for installing stator component and solid with base
Fixed connection；
The reducer is fixedly connected with end cap.In this motor-type CRDM, since including the spacer, the above spacer can subtract
Small machine type CRDM assemble when and pneumatic shell impact force, achieve the purpose that protect spacer；It can be used for motor-type CRDM dress simultaneously
With the guiding in the process between pneumatic shell, conducive to the assembly efficiency for improving motor-type CRDM.Since end cap may be designed as in ring
Shape channel-shaped, annular groove is for accommodating stator component part, i.e., end cap wall is effectively as stator component part and extraneous shielding
Layer, using the above motor-type CRDM scheme, the upper and lower end and motor-type CRDM of spacer have tie point, in this way, spacer fixation can
By property height, spacer penetrates through the entire inner hole of stator component, to realize to the reliable insulation blocking of stator component.
Described be fixedly connected is to be welded to connect.The above fixed form that is welded to connect not only is not changing existing motor-type
It is easily achieved in the case where CRDM structure, while realizing axial seal using weld seam.
To promote axial seal effect, optimizes the protective performance of spacer, be arranged are as follows: the welded connecting is all made of girth joint
It is welded to connect.
It fits on the inside of the outside of the reducer and end cap.Using this programme, due on the outside of reducer and in end cap
Side is affixed, and reducer, by the support on the inside of end cap, may make reducer to be not easy to be destroyed with reducer when pneumatic shell phase separation.
The utility model has the following beneficial effects:
In the present solution, magnetic conductivity stainless steel can not only fit by setting the material of spacer to for magnetic conductivity stainless steel
The working environment of motor-type CRDM is answered, simultaneously because the magnetic property of magnetic stainless steel, is compared for the spacer of magnetic conductivity stainless steel
In the spacer for austenitic stainless steel, can avoid that motor-type CRDM electromagnetic efficiency is caused to decline, thus, do not changing motor-type
In the case where CRDM stator component power, so that the performance of motor-type CRDM meets working condition requirement.
This programme provide protection type CRDM, can in the case where not changing motor-type CRDM stator component power so that
The performance of motor-type CRDM meets working condition requirement.
Detailed description of the invention
Fig. 1 is the structure sectional view of mono- specific embodiment of protection type CRDM described in the utility model；
Fig. 2 is the schematic perspective view of one specific embodiment of spacer described in the utility model.
Appended drawing reference in figure is successively are as follows: 1, base, 2, stator winding, and 3, stator core, 4, spacer ontology, 5, end cap,
6, electric connector, 7, encapsulating layer, 8, mover component, 9, pneumatic shell, 10, reducer, 11, isometrical straight pipe.
Specific embodiment
Below with reference to embodiment, the utility model is described in further detail, but the structure of the utility model is not only
It is limited to following embodiment.
Embodiment 1:
As depicted in figs. 1 and 2, the spacer on CRDM, including spacer ontology 4, the material of the spacer ontology 4 are to lead
Magnetic stainless steel.
This spacer is in motor-type CRDM.In the prior art, on motor-type CRDM stator component generally comprise base 1,
Stator winding 2 and end cap 5, stator winding 2 include winding ontology and stator core 3, are also connected with electric connector on stator winding 2
6, electric connector 6 is typically secured on base 1, and encapsulating layer 7 is generally additionally provided in the installation cavity for installing stator component, electricity
The mover component 8 of type CRDM is mounted in pneumatic shell 9.Due to the special working environment of motor-type CRDM, for motor-type
The structure of CRDM designs, and proposing in the prior art a kind of includes spacer, for realizing by stator winding 2 on stator component and outside
The hot and humid environment on boundary is isolated, caused by can eliminating CRDM decreasing insulating under hot and humid environment, electrical material mildew
The scheme of various challenges.
In the prior art, austenitic stainless steel is mostly used for the material of spacer, however, since austenitic stainless steel is one
Kind non-magnet material, therefore spacer, while stator component on playing protection motor-type CRDM, spacer influences the electromagnetism effect of CRDM
Rate.For this problem, in the prior art, motor-type CRDM for original no spacer or the motor-type for being designed as no spacer
CRDM is installed after spacer or using the function after having the motor-type CRDM of spacer, needed by increasing motor-type CRDM stator component
Rate enables motor-type CRDM normally to complete normal driving C&P systems.
In the present solution, magnetic conductivity stainless steel can not only fit by setting the material of spacer to for magnetic conductivity stainless steel
The working environment of motor-type CRDM is answered, simultaneously because the magnetic property of magnetic stainless steel, is compared for the spacer of magnetic conductivity stainless steel
In the spacer for austenitic stainless steel, can avoid that motor-type CRDM electromagnetic efficiency is caused to decline, thus, do not changing motor-type
In the case where CRDM stator component power, so that the performance of motor-type CRDM meets working condition requirement.
Preferably, setting are as follows: the spacer is seamless thin wall pipe, in this way, being conducive to magnetic in motor-type CRDM circumferential direction
The uniformity of field distribution.
In the present embodiment, the magnetic conductivity stainless steel is using any one in following stainless steel: martensitic stain less steel, double
To body stainless steel, permalloy.
Embodiment 2:
As depicted in figs. 1 and 2, the present embodiment is further qualified on the basis of embodiment 1: the spacer ontology 4
One end is provided with reducer 10 in the shape of a trumpet, and end of the big end of the reducer 10 as spacer.
Spacer is traditionally arranged to be in isometrical cylindrical shape in the prior art, specific to use are as follows: the upper end of spacer and base 1 are fixed
Connection, the lower end of spacer is fixedly connected with end cap 5, and spacer, base 1,5 three of end cap, which surround, closed to be used to install stator winding
2 installation cavity.Simultaneously as motor-type CRDM weight is larger, connected by base 1, spacer, end cap 5, stator component
After one entirety, the assembly of part pneumatic shell 9 where motor-type CRDM stator component is generally realized by way of lifting, this
Sample, due to internal diameter of spacer itself and 9 compatible portion outer diameter difference of pneumatic shell motor-type CRDM stator that is very small, while being suspended
Component easily shakes, in this way, during the motor-type CRDM stator component being suspended discharges downwards, spacer lower end with
9 upper end centering difficulty of pneumatic shell is high: spacer lower end and 9 upper end of pneumatic shell collide and easily spacer are caused to be damaged, so not only shadow
The assembly efficiency of motor-type CRDM is rung, while being easy to appear spacer after period of assembly is scrapped, completes the assembly of spacer, every
The problem of set can not play ideal isolation performance.
For scheme provided above when using, spacer is provided with one end of bell mouth shape reducer 10 as under spacer
End, when spacer is installed on motor-type CRDM, spacer is located in the hole section that end cap 5 surrounds or positioned at the lower section of end cap 5, and
As those skilled in the art, the internal diameter of 10 above section of reducer meets the cooperation with pneumatic shell 9 on spacer, on spacer
Size or the structure design of 10 above section of reducer use design in the prior art, the spacer provided using this programme
In assembly, since deformation section bottom diameter is greater than the internal diameter of 10 top spacer paragraph of reducer, motor-type CRDM dress is being carried out
Timing, since pneumatic shell 9 needs to be introduced into spacer by the reducer 10 of spacer, the motor-type CRDM as where working as stator component to
When spacer and the collision of pneumatic shell 9 occur for the first time for lower release, position of collision is located on 10 inner wall of reducer, and reducer 10 at this time
Inner wall surface is an inclined-plane relative to the end face of pneumatic shell 9, can realize the guiding between spacer and pneumatic shell 9 with ramp,
It not only can effectively avoid spacer in this way and pneumatic shell 9 have an effect power direction in the sharp impacts of vertical direction, cause spacer big
Amplitude variation shape or rupture, while reducer 10 can be used for spacer and 9 centering of pneumatic shell guiding, intuitively adjust the motor-type being suspended
The position of CRDM in the horizontal plane is so that the accuracy of alignment with pneumatic shell 9 is constantly further improved, conducive to motor-type CRDM
Assembly efficiency.
As the specific implementation of spacer, the spacer is made of isometrical straight pipe 11 and reducer 10, reducer 10
Diameter small end connect with the end of isometrical straight pipe 11, the diameter small end of reducer 10 and isometrical straight pipe 11 are isometrical.
When motor-type CRDM as where realizing stator component by lifting is discharged downwards with the cooperation of pneumatic shell 9, generally
First time spacer and pneumatic shell 9 hit interaction force maximum, and the installation site of reducer 10 is located in the hole section that end cap 5 surrounds
Or positioned at the lower section of end cap 5, in this way, according to the structure of existing motor-type CRDM: base 1, spacer, end cap 5, stator component four
In the assembly that person connects into, from top to bottom, until the upper end of end cap 5 starts, the gap for accommodating spacer becomes wider, therefore
Setting are as follows: the wall thickness of the reducer 10 is greater than the wall thickness of isometrical straight pipe 11.The wall thickness of reducer 10 compared to upper end every
It is bigger to cover paragraph wall thickness, when the above shock occurs, the thicker reducer 10 of wall thickness can guarantee the integrity of spacer entirety as far as possible,
So that spacer plays reliable shielding properties.Preferably, being set as reducer 10 and isometrical 11 medial and lateral surface of straight pipe
It is smoothly connected, in this way, can avoid reducer 10 when pneumatic shell 9 and reducer 10 are hit and occur with isometrical 11 part of straight pipe
Stress is concentrated and causes the lower end of isometrical straight pipe 11 that plastic deformation even tearing etc. occurs.
Embodiment 3:
As depicted in figs. 1 and 2, a kind of protection type CRDM is present embodiments provided, the CRDM is motor-type CRDM, including
Stator component, further includes the spacer being mounted in stator component centre bore, and the spacer is one spacer provided of any of the above.
The protection type CRDM that this programme provides, can be in the case where not changing motor-type CRDM stator component power, so that motor-type
The performance of CRDM meets working condition requirement.
Embodiment 4:
As depicted in figs. 1 and 2, the present embodiment is further qualified on the basis of embodiment 3, is provided on the spacer
Reducer 10, one end that reducer 10 is provided on spacer is lower end, and the other end of spacer is upper end；
The stator component includes base 1, the upper end of spacer across the installation cavity for installing stator component and with base 1
It is fixedly connected；
The reducer 10 is fixedly connected with end cap 5.In this motor-type CRDM, due to including the spacer, the above spacer
Impact force when can reduce motor-type CRDM assembly with pneumatic shell 9 achievees the purpose that protect spacer；It can be used for motor-type simultaneously
Guiding in CRDM assembling process between pneumatic shell 9, conducive to the assembly efficiency for improving motor-type CRDM.Since end cap 5 can be set
It is calculated as channel-shaped in a ring, for annular groove for accommodating stator component part, i.e. 5 wall of end cap is local and outer effectively as stator component
The shielded layer on boundary, using the above motor-type CRDM scheme, the upper and lower end and motor-type CRDM of spacer have tie point, in this way, every
Fixed high reliablity is covered, spacer penetrates through the entire inner hole of stator component, to realize to the reliable insulation blocking of stator component.
Described be fixedly connected is to be welded to connect.The above fixed form that is welded to connect not only is not changing existing motor-type
It is easily achieved in the case where CRDM structure, while realizing axial seal using weld seam.
To promote axial seal effect, optimizes the protective performance of spacer, be arranged are as follows: the welded connecting is all made of girth joint
It is welded to connect.
The outside of the reducer 10 and the inside of end cap 5 fit.Using this programme, due to 10 outside of reducer and end
It is affixed on the inside of lid 5, support of the reducer 10 with reducer 10 when 9 phase separation of pneumatic shell by 5 inside of end cap may make reducer
10 are not easy to be destroyed.
The above content is the further descriptions made in conjunction with specific preferred embodiment to the utility model, cannot recognize
Determine specific embodiment of the present utility model to be only limited to these instructions.For the common skill of the utility model technical field
For art personnel, the other embodiments obtained in the case where not departing from the technical solution of the utility model be should be included in practical
In novel protection scope.
Claims (9)
1. for the spacer on CRDM, including spacer ontology (4), which is characterized in that the material of the spacer ontology (4) is magnetic conduction
Property stainless steel.
2. the spacer according to claim 1 on CRDM, which is characterized in that one end of the spacer ontology (4) is set
It is equipped with reducer in the shape of a trumpet (10), and end of the big end of the reducer (10) as spacer.
3. the spacer according to claim 2 on CRDM, which is characterized in that the spacer is by isometrical straight pipe (11)
Formed with reducer (10), the diameter small end of reducer connects with the end of isometrical straight pipe, the diameter of reducer (10) compared with
Small end and isometrical straight pipe (11) are isometrical.
4. the spacer according to claim 3 on CRDM, which is characterized in that the wall thickness of the reducer (10) is greater than
The wall thickness of isometrical straight pipe (11).
It further include being mounted on stator component centre bore 5. protection type CRDM, the CRDM are motor-type CRDM, including stator component
Interior spacer, which is characterized in that the spacer is the spacer that any one of Claims 1-4 provides.
6. protection type CRDM according to claim 5, which is characterized in that reducer (10) are provided on the spacer, every
Putting on and being provided with one end of reducer (10) is lower end, and the other end of spacer is upper end；
The stator component includes base (1), the upper end of spacer across the installation cavity for installing stator component and with base (1)
It is fixedly connected；
The reducer (10) is fixedly connected with end cap (5).
7. protection type CRDM according to claim 6, which is characterized in that described be fixedly connected is to be welded to connect.
8. protection type CRDM according to claim 7, which is characterized in that the welded connecting is all made of boxing seam welding company
It connects.
9. the protection type CRDM according to any one of claim 6 to 8, which is characterized in that the reducer (10)
It fits on the inside of outside and end cap (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821038678.9U CN208970187U (en) | 2018-07-02 | 2018-07-02 | Protection type CRDM and the spacer on CRDM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821038678.9U CN208970187U (en) | 2018-07-02 | 2018-07-02 | Protection type CRDM and the spacer on CRDM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208970187U true CN208970187U (en) | 2019-06-11 |
Family
ID=66748180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821038678.9U Active CN208970187U (en) | 2018-07-02 | 2018-07-02 | Protection type CRDM and the spacer on CRDM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208970187U (en) |
-
2018
- 2018-07-02 CN CN201821038678.9U patent/CN208970187U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200702 Address after: No. 328, Section 1, Changshun Avenue, Shuangliu District, Chengdu, Sichuan 610000 Patentee after: NUCLEAR POWER INSTITUTE OF CHINA Address before: Dujiangyan City, Sichuan province 610000 Cheung Road, Chengdu city of Sichuan Dujiangyan Economic Development Zone No. 5 Patentee before: Sichuan Huadu Nuclear Equipment Manufacture Co.,Ltd. |
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| TR01 | Transfer of patent right |