CN102467982B - Containment vessel air cooling system for million-kilowatt level nuclear reactor - Google Patents
Containment vessel air cooling system for million-kilowatt level nuclear reactor Download PDFInfo
- Publication number
- CN102467982B CN102467982B CN201010546274.2A CN201010546274A CN102467982B CN 102467982 B CN102467982 B CN 102467982B CN 201010546274 A CN201010546274 A CN 201010546274A CN 102467982 B CN102467982 B CN 102467982B
- Authority
- CN
- China
- Prior art keywords
- cover plate
- compressing member
- access hole
- airduct
- rotating 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.)
- Expired - Fee Related
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Classifications
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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 invention discloses a containment vessel air cooling system for a million-kilowatt level nuclear reactor. The containment vessel air cooling system comprises a fan and an air duct, wherein an access hole is formed on the air duct and is provided with a cover plate used for plugging the access hole; the top surface of the cover plate is fixedly provided with a cover plate compressing piece; the cover plate compressing piece is detachably connected to the air duct in a rotating manner through a rotating mechanism and is detachably locked with the air duct through a locking mechanism which is arranged at interval to the rotating mechanism, so that the cover plate is fixed on the access hole in a sealing manner. Aiming at the defect that the cover plate in the prior art is fixed by adopting a great number of bolts and is inconvenient to disassemble, so that disassembly personnel are radiated by control rods for a long time, and the body health is influenced, the invention provides the containment vessel air cooling system for the million-kilowatt level nuclear reactor, which is easy and fast to disassemble and has good sealing performance.
Description
Technical field
The invention belongs to technical field of nuclear power.Relate to a kind of servicing unit of million kilowatt nuclear reactor safety shell, particularly relate to a kind of containment vessel air cooling system for million kilowatt nuclear reactor.
Background technology
At present in million kilowatt nuclear reactor genset, the nuclear reactor safety shell of every platform unit has control rod drive mechanisms (CRD) air cooling system (RRM), the function of RRM system is lowered the temperature to control rod drive mechanisms (CRD) supply lines coil unit and position indicator, their temperature is maintained within the acceptable range, to ensure that it normally runs.This air cooling system mainly comprises blower fan and airduct, airduct is provided with access hole, during air cooling system work, access hole is closed by cover plate for sealing, between annual overhaul time, just need the airduct cover plate in removal reactor containment top cover and rod drive mechanism air cooling system processed, to carry out inservice inspection to rod control system (RGL), namely in four control rod drive mechanisms (CRD) air cooling systems (RRM), all need the cover plate taking control rod drive mechanisms (CRD) air cooling system airduct apart, four corresponding access holes are had in existing control rod drive mechanisms (CRD) air cooling system, the cover plate of each access hole is connected with the airduct be adjacent with the bolt of 16 M10*30, because control rod can produce radiation, and dismounting 16 bolts are comparatively time-consuming, make dismounting personnel raying irradiation time long, the radiation dose be subject to is higher, affect healthy.And the cover plate under dismounting is due to the restriction in space, there is no local placement.
Summary of the invention
The technical problem to be solved in the present invention is, a lot of bolt is adopted to fix for prior art cover plate, it is long that dismounting inconvenience makes dismounting personnel be controlled excellent radiated time, affect healthy defect, provide a kind of and dismantle simple and fast, reduce dismounting personnel by exposure time and can carry out the containment vessel air cooling system for million kilowatt nuclear reactor of excellent sealing to access hole.
The technical solution adopted for the present invention to solve the technical problems is: a kind of containment vessel air cooling system for million kilowatt nuclear reactor, comprise blower fan, airduct, airduct offers access hole, access hole place is provided with the cover plate for shutoff access hole, described cover plate end face is provided with cover plate compressing member, described cover plate compressing member is detachably rotatably connected on airduct by rotating mechanism, and by being detachably locked on airduct by cover plate compressing member with rotating mechanism spaced latch mechanism, cover plate for sealing is fixed on access hole by cover plate compressing member.
Described cover plate compressing member has at least two connecting portions to cover plate extension, and described latch mechanism and rotating mechanism are all separately fixed on connecting portion and airduct outer wall.
Described latch mechanism arranges one, and described rotating mechanism and latch mechanism are oppositely arranged respectively outside cover plate.
Described latch mechanism arranges two, and a rotating mechanism and two latch mechanisms are symmetricly set on outside cover plate respectively.
Described latch mechanism comprises the stud be fixed on airduct outer wall, the locking member of spinning on stud, and the connecting portion of cover plate compressing member has connecting hole, and connecting hole to be installed on stud and to be locked by locking member.
Described locking member comprises nut and locknut, locknut to be positioned at above nut and spinning at stud upper locking nut.
Described rotating mechanism comprises the stationary shaft that end is fixedly connected with on airduct, the axle sleeve be set with on stationary shaft, and described axle sleeve outer wall is fixedly connected with cover plate compressing member.
Described rotating mechanism comprises the first fixture, the second fixture fixing on cover plate compressing member that are fixed on the outer airduct of access hole, on first fixture and the second fixture, correspondence has the first axis hole and the second axis hole respectively, is fitted with bearing pin and the first fixture and the second fixture is rotatably connected in the first axis hole and the second axis hole.
Described cover plate compressing member is by cover plate central or about cover plate central rotational symmetry.
Described cover plate compressing member is the compressor arm by cover plate central.
Described rotating mechanism and latch mechanism are separately fixed on the connecting portion of compressor arm end.
Described compressor arm is straight-bar, and described rotating mechanism and latch mechanism are separately fixed on the connecting portion at compressor arm two ends.
Described compressor arm is herringbone bar or T-shaped bar, and three connecting portions of compressor arm arrange a rotating mechanism and two latch mechanisms respectively, and two described latch mechanisms are symmetrical arranged.
Described cover plate compressing member is tabular, and its edge extends connecting portion.
The second is used for the containment vessel air cooling system of million kilowatt nuclear reactor: comprise blower fan, airduct, airduct offers access hole, access hole place is provided with the cover plate for shutoff access hole, sealing slot is provided with at access hole place, described cover plate is plugged in sealing slot and is sealed by access hole, and cover plate is locked by latch mechanism.
Described sealing slot is arranged along airduct access hole periphery, and only leaves insert port cover plate being inserted sealing slot, and sealing slot opening is inside.
Described latch mechanism comprises bolt, has connecting hole at seal groove cell wall, seal groove inwall is provided with the nut of corresponding connecting hole, and bolt to be inserted in connecting hole and to be spirally connected with nut and pushes up cover clamp and fixed by cover plate.
The third is for the containment vessel air cooling system of million kilowatt nuclear reactor, comprise blower fan, airduct, airduct offers access hole, access hole place is provided with the cover plate for shutoff access hole, described cover plate end face is provided with cover plate compressing member, described cover plate compressing member is detachably rotatably connected on airduct by rotating mechanism, and by being detachably locked on airduct by cover plate compressing member with rotating mechanism spaced latch mechanism, makes cover plate for sealing be fixed on access hole; Described cover plate compressing member is oppositely extended with two connecting portions outside cover plate, and described latch mechanism and rotating mechanism are all separately fixed on one of them connecting portion and airduct outer wall; Described rotating mechanism comprises the stationary shaft that end is fixedly connected with on airduct, the axle sleeve be set with on stationary shaft, and described axle sleeve outer wall is fixedly connected with cover plate compressing member; Described latch mechanism comprises the stud be fixed on airduct outer wall, the locking member of spinning on stud, and the connecting portion of cover plate compressing member has connecting hole, and connecting hole to be installed on stud and to be locked by locking member; Described locking member comprises nut and locknut, locknut to be positioned at above nut and spinning at stud upper locking nut; Described cover plate compressing member is by cover plate central or about cover plate central rotational symmetry; Described cover plate compressing member is the straight-bar by cover plate central, and described rotating mechanism and latch mechanism are separately fixed on the connecting portion at straight-bar two ends.
The 4th kind of containment vessel air cooling system for million kilowatt nuclear reactor, comprise blower fan, airduct, airduct offers access hole, access hole place is provided with the cover plate for shutoff access hole, sealing slot is provided with at access hole place, described cover plate is plugged in sealing slot and is sealed by access hole, and cover plate is locked by latch mechanism; Described sealing slot is arranged along airduct access hole periphery, and only leaves insert port cover plate being inserted sealing slot, and sealing slot opening is inside; Described latch mechanism comprises bolt, has connecting hole at seal groove cell wall, seal groove inwall is provided with the nut of corresponding connecting hole, and bolt to be inserted in connecting hole and to be spirally connected with nut and pushes up cover clamp and fixed by cover plate.
The present invention adopts four kinds of structures to realize the quick-detachment of cover plate, and sealing is fixing after mounting, wherein two kinds of modes are the modes utilizing fixing cover plate compressing member to be on the cover board detachably rotationally connected, other two kinds adopt directly by the mode of cover plate grafting, and these four kinds of modes all make cover plate for sealing be fixed on access hole by latch mechanism locking.Therefore, only need open latch mechanism when dismantling, cover plate rotating opening or pull can be opened, making unloading process become simple and fast, greatly reducing the time that operating personnel are subject to irradiation, ensure that operating personnel's is healthy.In addition, because latch mechanism locking ensure that the stationarity of cover plate, when cover plate is not dismantled, access hole can be sealed well.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 1 cover plate compressing member;
Fig. 3 is the cut-open view at the embodiment of the present invention 1 airduct access hole place;
Fig. 4 is the structural representation of the embodiment of the present invention 1 latch mechanism;
Fig. 5 is the structural representation of the embodiment of the present invention 2.
Embodiment
Embodiment 1, as shown in Figure 1, a kind of containment vessel air cooling system for million kilowatt nuclear reactor, comprise blower fan (not shown), airduct 1, airduct 1 offers access hole 11, access hole 11 is provided with upwards outside flanging 12, access hole 11 place is provided with the cover plate 2 for shutoff access hole 11, cover plate 2 is fitted on the flanging 12 of access hole 11, be provided with a circle sealing gasket 21 along one week, edge or on the flanging 12 of access hole 11 2 times at cover plate, when access hole 11 closed by cover plate 2, press seal pad 21 seals access hole 11.Cover plate 2 edge is provided with downward flanging 22, covers sealing gasket for enclosing.Described cover plate 2 end face is provided with cover plate compressing member 3, described cover plate compressing member 3 is detachably rotatably connected on airduct 1 by rotating mechanism 6, and by being detachably locked on airduct 1 with the spaced latch mechanism 5 of rotating mechanism 6 by cover plate compressing member 3, cover plate 2 sealing is fixed on access hole 11 by cover plate compressing member 3.
As shown in Figure 1, 2, 3, the relation of cover plate compressing member 3 and cover plate 2: can be that cover plate compressing member 3 is fixed on cover plate 2 end face, also can be that cover plate compressing member 3 is separated setting with cover plate 2, when cover plate compressing member 3 is fixedly connected with cover plate 2, then cover plate compressing member 3 can be used for pull-up cover plate 2 as handle, opens access hole 11.When the two be separated arrange time, cover plate compressing member 3 just when access hole 11 closed by cover plate 2 by cover plate 2 press seal on access hole 11.
Due to will cover plate compressing member 3 holddown plate 2 be passed through, the center of pressure that then cover plate 2 is subject to will to be applied in cover plate 2 in the heart, just can make cover plate 2 uniform force, safety closes access hole 11, and therefore cover plate compressing member 3 is by cover plate 2 center or symmetrical about cover plate 2 central shaft.The shape of described cover plate compressing member 3 is not limit, and described cover plate compressing member 3 has at least two connecting portions 32,33 to cover plate 2 extension, and described rotating mechanism 6 is fixed on connecting portion 32 and airduct 1 outer wall, and latch mechanism 5 is fixed on connecting portion 33 and airduct 1 outer wall.Latch mechanism 5 magnitude setting as required, generally in order to convenient disassembly, can not be too much, the present invention arranges one or two, and when arranging a latch mechanism 5, described rotating mechanism 6 and latch mechanism 5 are oppositely arranged respectively outside cover plate 2.But when arranging two latch mechanisms 5, described rotating mechanism 6 and latch mechanism 5 are disposed in an evenly spaced relation in outside cover plate 2 respectively, and latch mechanism 5 is symmetrical arranged.
As shown in Figure 1, 2, 3, the present embodiment selection cover plate compressing member 3 is the compressor arms by cover plate 2 center, and the end of compressor arm is provided with connecting portion 32,33, and described rotating mechanism 6 and latch mechanism 5 are separately fixed on the connecting portion 32,33 of compressor arm end.Described compressor arm is preferably straight-bar, and described rotating mechanism 6 and latch mechanism 5 are separately fixed on the connecting portion 32,33 at compressor arm two ends.Described compressor arm can also be herringbone bar or T-shaped bar, and three connecting portions of compressor arm arrange a rotating mechanism 6 and two latch mechanisms 5 respectively.Cover plate compressing member 3 described in other scheme is tabular, and its edge extends the connecting portion exceeding cover plate 2.The cover plate 2 preferably rotational symmetry of tabular, can evenly force in access hole 11, be conducive to safe and hermetically enclosed after latch mechanism 5 is locked.
As shown in Figure 1, 2, 3, described rotating mechanism 6 comprises the stationary shaft 62 that end is fixedly connected with on airduct 1, the axle sleeve 63 be set with on stationary shaft 62, described axle sleeve 63 outer wall is fixedly connected with cover plate compressing member 3, is connected in the middle part of axle sleeve 63 outer wall with the connecting portion 32 of cover plate compressing member 3.When cover plate compressing member 3 is compressor arm, the welding edges of compressor arm is in the middle part of axle sleeve 63, and in the present embodiment, stationary shaft 62 two ends are fixed on airduct 1 outer wall.
Another structure of described rotating mechanism 6 is: the second fixture comprising the first fixture be fixed on the outer airduct 1 of access hole 11, fix on cover plate compressing member 3, on first fixture and the second fixture, correspondence has the first axis hole and the second axis hole respectively, is fitted with bearing pin and the first fixture and the second fixture is rotatably connected in the first axis hole and the second axis hole.In this mode, bearing pin is plugged in the first axis hole and the second axis hole, bearing pin can be extracted out during dismounting, then cover plate compressing member 3 is separated with airduct 1, can directly open cover plate 2, therefore cover plate 2 also can be adopted and arrange multiple in this way around going, and plug bearing pin can complete fixing and dismounting, fast very convenient.
As shown in Fig. 1,2,4, described latch mechanism 5 is the cover plates 2 be combined in for tight locking button on access hole 11, because latch mechanism 5 is locked by cover plate compressing member 3, is therefore that the cooperation of the two completes locking.Locking member comprises the stud 53 be fixed on airduct 1 outer wall, the locking member of spinning on stud 53, and the connecting portion 33 of cover plate compressing member 3 has connecting hole, and connecting hole to be installed on stud 53 and to be locked by locking member.The present embodiment cover plate compressing member 3 have selected compressor arm, the connecting portion of compressor arm one end is provided with a web joint 31, then web joint 31 has connecting hole 311, for being installed on stud 53.Described locking member comprises nut 52 and locknut 51, locknut 51 to be positioned at above nut 52 and spinning at stud 53 upper locking nut 52.Latch mechanism 5 is except said structure, and can also adopt the fixture being provided with through hole respectively at cover plate compressing member 3 and airduct 1, pin is installed in the through hole of fixture and is fixed on airduct 1 by cover plate compressing member 3.Fixture is the baffle plate 55 arranged in stud 53 both sides in the present embodiment, baffle plate 55 is parallel to each other, the effect of baffle plate also may be used for securing cover plate compressing member 3, also may be used for the guiding that cover plate compressing member 3 coordinates with stud 53, during for securing cover plate compressing member 3, baffle plate 55 has through hole, and cover plate compressing member 3 also correspondence has through hole, and they are fixedly connected with in the through hole of cover plate compressing member 3 by the through hole selecting pin to be installed on baffle plate 55.In the present embodiment, baffle plate 55 is for the guide-localization of cover plate compressing member 3.
Embodiment 2, as shown in Figure 5, the containment vessel air cooling system that the second is used for million kilowatt nuclear reactor comprises blower fan, airduct 1, airduct 1 offers access hole (not shown), access hole place is provided with the cover plate 2 for shutoff access hole, sealing slot is provided with at access hole place, described cover plate 2 is plugged in sealing slot and is sealed by access hole, and cover plate 2 is locked by latch mechanism 5.
Described sealing slot is arranged along airduct 1 access hole periphery, and only leaves insert port cover plate 2 being inserted sealing slot, sealing slot opening mutually in.In the present embodiment, access hole is square, and therefore, be all provided with on access hole three limit the flanging upwards turned down, flanging is provided with press box 7, and press box 7 coordinates with flanging and forms opening sealing slot inwardly.In sealing slot, be provided with sealing gasket, seal access hole for cover plate 2.
Described latch mechanism comprises bolt (not shown), connecting hole is had at seal groove cell wall, seal groove inwall is provided with the nut of corresponding connecting hole, has connecting hole 8 exactly in the present embodiment on press box 7, the corresponding connecting hole 8 of press box 7 inwall is provided with nut.Bolt to be inserted in connecting hole 8 and to be spirally connected with nut and pushes up cover clamp 2 and fixed by cover plate 2.Except said structure, the present embodiment also can in cover plate 2 edge perforate, also perforate on corresponding airduct 1, and after cover plate 2 grafting puts in place, the hole on the hole on cover plate 2 and airduct 1 is aimed at, and the two is fixed together by screw.Identical with embodiment 1, latch mechanism 5 also can adopt other modes.
Claims (4)
1. the containment vessel air cooling system for million kilowatt nuclear reactor, comprise blower fan, airduct, airduct offers access hole, access hole place is provided with the cover plate for shutoff access hole, it is characterized in that, access hole is provided with upwards outside flanging, cover plate is fitted on the flanging of access hole, under cover plate along edge one week or on the flanging of access hole, be provided with a circle sealing gasket, side edge thereof is provided with downward for enclosing the flanging covering sealing gasket, described cover plate end face is provided with cover plate compressing member, and cover plate compressing member is separated setting with cover plate, described cover plate compressing member is detachably rotatably connected on airduct by rotating mechanism, and by cover plate compressing member being detachably locked on airduct with rotating mechanism spaced latch mechanism, cover plate for sealing is made to be fixed on access hole,
Described cover plate compressing member has at least two connecting portions to cover plate extension, and described latch mechanism and rotating mechanism are all separately fixed on a connecting portion and airduct outer wall;
When described latch mechanism arranges one, described rotating mechanism and latch mechanism are oppositely arranged respectively outside cover plate; When described latch mechanism arranges two, a rotating mechanism and two latch mechanisms are symmetricly set on outside cover plate respectively;
Described latch mechanism comprises the stud be fixed on airduct outer wall, the locking member of spinning on stud, the connecting portion of cover plate compressing member has connecting hole, connecting hole to be installed on stud and to be locked by locking member, described locking member comprises nut and locknut, locknut to be positioned at above nut and spinning at stud upper locking nut, be provided with in stud both sides be parallel to each other, for the baffle plate of the guide-localization of cover plate compressing member;
Described rotating mechanism comprises the stationary shaft that end is fixedly connected with on airduct, the axle sleeve be set with on stationary shaft, and described axle sleeve outer wall is fixedly connected with cover plate compressing member; Or described rotating mechanism comprises the first fixture, the second fixture fixing on cover plate compressing member that are fixed on the outer airduct of access hole, on first fixture and the second fixture, correspondence has the first axis hole and the second axis hole respectively, is fitted with bearing pin and the first fixture and the second fixture is rotatably connected in the first axis hole and the second axis hole;
Described cover plate compressing member is by cover plate central or about cover plate central rotational symmetry, described cover plate compressing member is the compressor arm by cover plate central, and described rotating mechanism and latch mechanism are separately fixed on the connecting portion of compressor arm end.
2. the containment vessel air cooling system for million kilowatt nuclear reactor according to claim 1, is characterized in that, described compressor arm is straight-bar, and described rotating mechanism and latch mechanism are separately fixed on the connecting portion at compressor arm two ends.
3. the containment vessel air cooling system for million kilowatt nuclear reactor according to claim 1, it is characterized in that, described compressor arm is herringbone bar or T-shaped bar, three connecting portions of compressor arm arrange a rotating mechanism and two latch mechanisms respectively, and two described latch mechanisms are symmetrical arranged.
4. the containment vessel air cooling system for million kilowatt nuclear reactor according to claim 1, is characterized in that, described cover plate compressing member is tabular, and its edge extends connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010546274.2A CN102467982B (en) | 2010-11-11 | 2010-11-11 | Containment vessel air cooling system for million-kilowatt level nuclear reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010546274.2A CN102467982B (en) | 2010-11-11 | 2010-11-11 | Containment vessel air cooling system for million-kilowatt level nuclear reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102467982A CN102467982A (en) | 2012-05-23 |
| CN102467982B true CN102467982B (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010546274.2A Expired - Fee Related CN102467982B (en) | 2010-11-11 | 2010-11-11 | Containment vessel air cooling system for million-kilowatt level nuclear reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102467982B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622962A (en) * | 2020-12-19 | 2021-04-09 | 河南中车重型装备有限公司 | LY2 subway air duct access hole structural design |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065348A (en) * | 1991-03-28 | 1992-10-14 | 西屋电气公司 | The equipment of passive reduction off-site radiation |
| CN1117646A (en) * | 1994-08-19 | 1996-02-28 | 通用电气公司 | Method and apparatus for enhancing reactor air-cooling system performance |
| CN2420509Y (en) * | 2000-04-21 | 2001-02-21 | 吴石民 | Man hole door of engineering device |
| CN2571841Y (en) * | 2002-09-04 | 2003-09-10 | 常应祥 | Manhole cover capable of large range rotation when opened |
-
2010
- 2010-11-11 CN CN201010546274.2A patent/CN102467982B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065348A (en) * | 1991-03-28 | 1992-10-14 | 西屋电气公司 | The equipment of passive reduction off-site radiation |
| CN1117646A (en) * | 1994-08-19 | 1996-02-28 | 通用电气公司 | Method and apparatus for enhancing reactor air-cooling system performance |
| CN2420509Y (en) * | 2000-04-21 | 2001-02-21 | 吴石民 | Man hole door of engineering device |
| CN2571841Y (en) * | 2002-09-04 | 2003-09-10 | 常应祥 | Manhole cover capable of large range rotation when opened |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102467982A (en) | 2012-05-23 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Owner name: CHINA GENERAL NUCLEAR GROUP CO., LTD. Free format text: FORMER NAME: CHINA GUANGDONG NUCLEAR POWER GROUP CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Patentee after: China General Nuclear Power Corporation Patentee after: Dayawan Nuclear Power Running Management Co., Ltd. Address before: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Patentee before: China Guangdong Nuclear Power Group Co., Ltd. Patentee before: Dayawan Nuclear Power Running Management Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151027 Address after: 518031 Guangdong province Futian District Shangbu Road West of the city of Shenzhen Shenzhen science and technology building, 15 Floor Patentee after: Lingao Nuclear Power Co., Ltd. Patentee after: China General Nuclear Power Corporation Address before: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Patentee before: China General Nuclear Power Corporation Patentee before: Dayawan Nuclear Power Running Management Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20191111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |