CN207425367U - Marinereactor control rod drive mechanism is toppled drive rod self-locking device under state - Google Patents
Marinereactor control rod drive mechanism is toppled drive rod self-locking device under state Download PDFInfo
- Publication number
- CN207425367U CN207425367U CN201721186464.1U CN201721186464U CN207425367U CN 207425367 U CN207425367 U CN 207425367U CN 201721186464 U CN201721186464 U CN 201721186464U CN 207425367 U CN207425367 U CN 207425367U
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- Prior art keywords
- sliding block
- drive rod
- self
- marinereactor
- toppled
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Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 210000004907 gland Anatomy 0.000 claims abstract description 9
- 238000010586 diagram Methods 0.000 description 10
- 238000004088 simulation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Classifications
-
- 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
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- Load-Engaging Elements For Cranes (AREA)
Abstract
It topples drive rod self-locking device under state the utility model is related to marinereactor control rod drive mechanism, including pressure hull, drive rod and gland, pressure hull, ring cavity is formed between drive rod and gland, it is characterized in that position corresponding with ring cavity is provided with annular groove on drive rod, self-locking mechanism is provided in ring cavity, self-locking mechanism includes head cover, pedestal, take-up housing and sliding block, sliding block includes substrate and boss, boss can slip into or leave annular groove with sliding block, take-up housing is circular frame structure, above sliding slot there are four being set on the arc surface of take-up housing, circular groove slide corresponding with " C " type groove is provided in the two side walls of sliding slot, sliding block is mounted in sliding slot and passes through the cooperation of " C " type groove and circular groove slide and slided along circular groove slide, self-locking mechanism is arranged with drive rod coaxial line.The utility model is simple in structure, safe and reliable and can ensure that and lock drive rod under the state of toppling.
Description
Technical field
The utility model is related to self-locking device peculiar to vessel, specifically marinereactor control rod drive mechanism is toppled shape
Drive rod self-locking device under state.
Background technology
Control rod drive mechanism is that ocean core moves as reactor control system and the executing agency of Nuclear Safety Protection System
One of key equipment of power platform nuclear reactor, major function be ship inclination, wave, impact etc. under the conditions of, can be according to
Instruction promotion, underthrust and holding C＆P systems, and then realize reactor start-up, adjust power, maintain power and normal shutdown
Function.Severe sea condition can be met with during the nuclear power platform operation of ocean, to consider the core after such as platform topples under extreme case
Safety, it is necessary to the control rod for having returned insertion reactor core be made to remain to be maintained in fuel assembly, maintain the subcritical state of reactor.
For this purpose, it designs simple in structure, safe and reliable and can ensure that the marinereactor that drive rod is locked under the state of toppling controls
The rod drive mechanism drive rod self-locking device under state that topples is very necessary.
Utility model content
The purpose of this utility model is to provide a kind of simple in structure, safe and reliable and can ensure that lock under the state of toppling and drive
The marinereactor control rod drive mechanism of lever is toppled drive rod self-locking device under state.
To achieve the above object, the utility model adopts the following technical solution：Marinereactor control rod drive mechanism
Drive rod self-locking device under state of toppling, including pressure hull, drive rod and gland, between pressure hull, drive rod and gland
Ring cavity is formed, it is characterized in that position corresponding with ring cavity is provided with annular groove on drive rod, is set in ring cavity
Have a self-locking mechanism, self-locking mechanism includes head cover, pedestal, take-up housing and sliding block, the top and bottom of take-up housing respectively with head cover and
Pedestal connects, and sliding block includes substrate and boss, offer on two parallel sides of substrate with the inner surface of substrate in 20 °-
" C " type groove of 45° angle sets 3-6 balls in " C " type groove, and the groove face of ball exposing " C " type groove, boss can be with the cunning of sliding block
Into or out annular groove is moved, take-up housing is circular frame structure, sets that there are four above cunnings on the arc surface of take-up housing
Slot, circular groove slide corresponding with " C " type groove is provided in the two side walls of sliding slot, and sliding block is mounted in sliding slot and passes through " C " type
The cooperation of slot and circular groove slide is slided along circular groove slide, and self-locking mechanism is arranged with drive rod coaxial line.
Further, the sliding slot is evenly arranged along the arc surface of take-up housing.
Further, sliding slot there are six being set on the arc surface of the take-up housing.
Further, 4 balls are set in described " C " type groove.
Further, position corresponding with sliding block opens up square groove on the head cover, position corresponding with sliding block on the pedestal
It puts and opens up skewed slot, the width of skewed slot is less than the width of sliding block.
Using the utility model, when platform is swung left and right angle no more than ± 22.5 °, drive rod raising and lowering is not
It is impacted；After platform swing angle is more than 22.5 °, platform sends shutdown signal, control rod in very short time under turn back to heap
Core；When platform topples completely, the boss of sliding block enters annular groove, and C＆P systems can not be poured out from reactor core, so as to reach
Maintain the purpose of Subcritical state of the reactor.The utility model is simple in structure, safe and reliable.
Description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the self-locking mechanism structure diagram of the utility model；
Fig. 3 is the take-up housing structure diagram of the utility model；
Fig. 4 is the slide block structure schematic diagram of the utility model；
Fig. 5 is the cap structure schematic diagram of the utility model；
Fig. 6 is the understructure schematic diagram of the utility model；
Fig. 7 is the schematic diagram of one embodiment sliding block lug boss position when inclination angle is 60 ° of the utility model；
Fig. 8 is the schematic diagram of one embodiment sliding block lug boss position when inclination angle is 76.7 ° of the utility model；
Fig. 9 is the schematic diagram of one embodiment sliding block lug boss position when inclination angle is 106.7 ° of the utility model；
Figure 10 is the schematic diagram of one embodiment sliding block lug boss position when inclination angle is 180 ° of the utility model.
In figure：1- pressure hulls；2- drive rods；2.1- annular groove；3- glands；4- ring cavities；5- self-locking mechanisms；6- is pushed up
Lid；6.1- square groove；7- pedestals；7.1- skewed slot；8- take-up housings；8.1- sliding slot；9- sliding blocks；9.1- substrate；9.1.1- " C " type groove；
9.2- boss；10- balls；11- circular groove slides.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments, but the embodiment should not be construed as pair
The limitation of the utility model.
Marinereactor control rod drive mechanism as depicted is toppled drive rod self-locking device under state, including pressure-resistant
Housing 1, drive rod 2 and gland 3 form ring cavity 4 between pressure hull 1, drive rod 2 and gland 3, on drive rod 2 with ring
4 corresponding position of shape cavity is provided with annular groove 2.1, and self-locking mechanism 5 is provided in ring cavity 4, and self-locking mechanism 5 includes head cover
6th, pedestal 7, take-up housing 8 and sliding block 9, the top and bottom of take-up housing 8 are connected respectively with head cover 6 and pedestal 7, and sliding block 9 includes base
Plate 9.1 and boss 9.2 offer " C " type in 30 ° of angles with the inner surface of substrate 9.1 on two parallel sides of substrate 9.1
3 balls 10 are set in slot 9.1.1, " C " type groove 9.1.1, and ball 10 exposes the groove face of " C " type groove 9.1.1, and boss 9.2 can be with
Sliding block 9 slips into or leaves annular groove 2.1, and take-up housing 8 is circular frame structure, is set on the arc surface of take-up housing 8
There are five sliding slot 8.1, circular groove slide 11 corresponding with " C " type groove 9.1.1 is provided in the two side walls of sliding slot 8.1, sliding block 9 is pacified
In the sliding slot 8.1 and pass through " C " type groove 9.1.1 and the cooperation of circular groove slide 11 is slided along circular groove slide 11, self-locking mechanism 5 and
2 coaxial line of drive rod is arranged.
Preferred embodiment is：In said program, the sliding slot 8.1 is evenly arranged along the arc surface of take-up housing 8.
Preferred embodiment is：Sliding slot 8.1 there are six being set in said program, on the arc surface of the take-up housing 8.
Preferred embodiment is：In said program, 4 balls 10 are set in " C " the type groove 9.1.1.
Preferred embodiment is：In said program, square groove 6.1 is opened up with 9 corresponding position of sliding block on the head cover 6,
Skewed slot 7.1 is opened up on the pedestal 7 with 9 corresponding position of sliding block, the width of skewed slot 7.1 is less than the width of sliding block 9.
Using above-described embodiment, when ocean, nuclear power platform topples, and when inclination angle reaches 60 °, slide block guide rail is located at
Horizontal level, control rod are still located in reactor core；When inclination angle reaches 76.7 °, sliding block overcomes resistance to start edge by dead weight
Guide rail slide downward, arrival sliding slot top is most long to need 0.333s；When inclination angle reaches 106.7 °, control rod starts reversely to fall
Go out, the angle of circular groove slide reaches 136.7 ° (much larger than 76.7 °) at this time, and sliding block will reach latched position prior to control rod；When
When platform topples completely, the boss of sliding block enters annular groove and blocks drive rod, forms self-locking.
The utility model passes through the simulation test repeatedly of more than 500 times, when the analog platform angle that is swung left and right reaches ± 22.5 °
At even up to ± 45 °, drive rod raises and decentralizes unaffected；Drive rod raises and decentralizes also unaffected；Work as simulation
Platform topple angle for 80 ° or so when, the sliding block in self-locking device can be observed and skidded off from sliding slot；When analog platform inclines
Cover angle for 117 ° or so when, drive rod is blocked after sliding a distance by sliding block, is successfully realized self-locking；When platform capsizing angle
It spends for after 180 °, drive rod is blocked by sliding block, it is impossible to exit again；After platform topples 360 ° of returns, drive rod is by gravity
After rollback, sliding block is also slid back in slot, and at this moment drive rod raises and decentralizes unaffected.Result of the test shows：In platform or so
When swing angle is no more than ± 45 °, self-locking device does not influence the normal operation of control rod drive mechanism；When platform speed of toppling is small
When 36rad/s (180 °/5s), self-locking device realizes 100% latching drive rod, none failure.
The content not being described in detail in this specification, belongs to that well known to a person skilled in the art the prior arts.
Claims (9)
- The drive rod self-locking device under state 1. marinereactor control rod drive mechanism is toppled, including pressure hull (1), driving Bar (2) and gland (3) form ring cavity (4) between pressure hull (1), drive rod (2) and gland (3), it is characterised in that： Position corresponding with ring cavity (4) is provided with annular groove (2.1) on drive rod (2), is provided in ring cavity (4) from lock machine Structure (5), self-locking mechanism (5) include head cover (6), pedestal (7), take-up housing (8) and sliding block (9), the top and bottom of take-up housing (8) It is connected respectively with head cover (6) and pedestal (7), sliding block (9) includes substrate (9.1) and boss (9.2), and two of substrate (9.1) are flat " C " type groove (9.1.1) in 20 ° -45° angle, " C " type groove (9.1.1) with the inner surface of substrate (9.1) are offered on capable side 3-6 balls (10) of middle setting, ball (10) expose the groove face of " C " type groove (9.1.1), and boss (9.2) can be with the cunning of sliding block (9) Into or out annular groove (2.1) is moved, take-up housing (8) is circular frame structure, and four are provided on the arc surface of take-up housing (8) A above sliding slot (8.1) is provided with circular groove slide corresponding with " C " type groove (9.1.1) in the two side walls of sliding slot (8.1) (11), sliding block (9) is mounted in sliding slot (8.1) and passes through " C " type groove (9.1.1) and the cooperation of circular groove slide (11) is slided along circular groove Rail (11) slides, and self-locking mechanism (5) is arranged with drive rod (2) coaxial line.
- The drive rod self-locking device under state 2. marinereactor control rod drive mechanism according to claim 1 is toppled, It is characterized in that：The sliding slot (8.1) is evenly arranged along the arc surface of take-up housing (8).
- 3. marinereactor control rod drive mechanism according to claim 1 or 2 is toppled, drive rod self-locking fills under state It puts, it is characterised in that：Sliding slot (8.1) there are six being set on the arc surface of the take-up housing (8).
- 4. marinereactor control rod drive mechanism according to claim 1 or 2 is toppled, drive rod self-locking fills under state It puts, it is characterised in that：4 balls (10) are set in " C " type groove (9.1.1).
- The drive rod self-locking device under state 5. marinereactor control rod drive mechanism according to claim 3 is toppled, It is characterized in that：4 balls (10) are set in " C " type groove (9.1.1).
- 6. marinereactor control rod drive mechanism according to claim 1 or 2 is toppled, drive rod self-locking fills under state It puts, it is characterised in that：Position corresponding with sliding block (9) opens up square groove (6.1) on the head cover (6), on the pedestal (7) with cunning The corresponding position of block (9) opens up skewed slot (7.1), and the width of skewed slot (7.1) is less than the width of sliding block (9).
- The drive rod self-locking device under state 7. marinereactor control rod drive mechanism according to claim 3 is toppled, It is characterized in that：Position corresponding with sliding block (9) opens up square groove (6.1) on the head cover (6), on the pedestal (7) and sliding block (9) corresponding position opens up skewed slot (7.1), and the width of skewed slot (7.1) is less than the width of sliding block (9).
- The drive rod self-locking device under state 8. marinereactor control rod drive mechanism according to claim 4 is toppled, It is characterized in that：Position corresponding with sliding block (9) opens up square groove (6.1) on the head cover (6), on the pedestal (7) and sliding block (9) corresponding position opens up skewed slot (7.1), and the width of skewed slot (7.1) is less than the width of sliding block (9).
- The drive rod self-locking device under state 9. marinereactor control rod drive mechanism according to claim 5 is toppled, It is characterized in that：Position corresponding with sliding block (9) opens up square groove (6.1) on the head cover (6), on the pedestal (7) and sliding block (9) corresponding position opens up skewed slot (7.1), and the width of skewed slot (7.1) is less than the width of sliding block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721186464.1U CN207425367U (en) | 2017-09-15 | 2017-09-15 | Marinereactor control rod drive mechanism is toppled drive rod self-locking device under state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721186464.1U CN207425367U (en) | 2017-09-15 | 2017-09-15 | Marinereactor control rod drive mechanism is toppled drive rod self-locking device under state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207425367U true CN207425367U (en) | 2018-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721186464.1U Withdrawn - After Issue CN207425367U (en) | 2017-09-15 | 2017-09-15 | Marinereactor control rod drive mechanism is toppled drive rod self-locking device under state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207425367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633886A (en) * | 2017-09-15 | 2018-01-26 | 中国船舶重工集团公司第七〇九研究所 | Marinereactor CRDM topples drive rod self-locking device under state |
-
2017
- 2017-09-15 CN CN201721186464.1U patent/CN207425367U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633886A (en) * | 2017-09-15 | 2018-01-26 | 中国船舶重工集团公司第七〇九研究所 | Marinereactor CRDM topples drive rod self-locking device under state |
| CN107633886B (en) * | 2017-09-15 | 2024-03-19 | 中国船舶重工集团公司第七一九研究所 | Self-locking device of driving rod in capsizing state of driving mechanism of control rod of marine nuclear reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180529 Effective date of abandoning: 20240319 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180529 Effective date of abandoning: 20240319 |