CN109346195B - A control rod driving mechanism for a deep water pool heating reactor - Google Patents
A control rod driving mechanism for a deep water pool heating reactor Download PDFInfo
- Publication number
- CN109346195B CN109346195B CN201811342475.3A CN201811342475A CN109346195B CN 109346195 B CN109346195 B CN 109346195B CN 201811342475 A CN201811342475 A CN 201811342475A CN 109346195 B CN109346195 B CN 109346195B
- Authority
- CN
- China
- Prior art keywords
- assembly
- control rod
- driving
- steel wire
- rod assembly
- 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.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000010438 heat treatment Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
- G21C7/12—Means for moving control elements to desired position
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C17/12—Sensitive element forming part of control element
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
本发明涉及一种深水池式供热堆控制棒驱动机构，包括驱动组件、钢丝绳、卡锁装置和驱动杆组件；所述驱动组件与所述钢丝绳驱动连接；所述钢丝绳与所述驱动杆组件均与所述卡锁装置连接以实现/断开连接；所述驱动杆组件与控制棒组件连接。本发明的有益效果如下：1、通过驱动杆组件和卡锁装置的设置减少钢丝绳的有效长度，从而解决因钢丝绳影响而产生的不利于控制棒组件快速落棒的情况；2、通过外筒壁的设置，钢丝绳之间不会相互响应；3、卡锁装置和驱动杆组件自动对中连接；4、通过棒位检测组件能够实现对控制棒组件的棒位检测；5、减少相关部件所受堆芯辐照的剂量(如，往上提至水面以上或需放置在堆大厅的部件)。
The present invention relates to a control rod drive mechanism for a deep-water pool heating reactor, comprising a drive assembly, a steel wire rope, a locking device and a drive rod assembly; the drive assembly is connected to the steel wire rope in a driving manner; the steel wire rope and the drive rod assembly are both connected to the locking device to achieve/disconnect the connection; the drive rod assembly is connected to the control rod assembly. The beneficial effects of the present invention are as follows: 1. The effective length of the steel wire rope is reduced by setting the drive rod assembly and the locking device, thereby solving the problem of the control rod assembly being unfavorable for rapid rod drop caused by the influence of the steel wire rope; 2. The steel wire ropes will not respond to each other through the setting of the outer cylinder wall; 3. The locking device and the drive rod assembly are automatically connected in a centering manner; 4. The rod position detection of the control rod assembly can be achieved through the rod position detection assembly; 5. The core irradiation dose received by the relevant components is reduced (e.g., components that are lifted above the water surface or need to be placed in the reactor hall).
Description
Technical Field
The invention relates to the field of nuclear engineering, in particular to a deep water tank type heating pile control rod driving mechanism.
Background
Control rod drive mechanisms are important devices for ensuring the safety of reactors, and different types of control rod drive mechanisms exist for different reactor types. The pool type reactor has the characteristics that the reactor is immersed in a deep water pool, the existing mature type driving mechanism cannot directly meet the use requirement, the existing pool type nuclear reactor in China has smaller power, the number of control rod driving mechanisms is small, and the depth of pool water is not equal to that of a pool type heating reactor. Therefore, the deep water tank type heat supply pile is not simply amplified to the original low-power tank type pile, key equipment in the reactor, such as a control rod driving mechanism, cannot completely adapt to the deep water tank type heat supply pile, and design innovation needs to be developed deeply, so that the development of the deep water tank type heat supply pile is promoted.
The deep water tank type (the water depth of the pool is more than 20 meters) heat supply pile is not used in advance in China, and a control rod driving mechanism suitable for the characteristics of the reactor is needed in engineering construction of the reactor. Because of the limit of the length of the driving rod when the pressurized water reactor control rod driving mechanism with the mature technology is used, when the pressurized water reactor control rod driving mechanism is used on a deep water tank type heat supply reactor, the whole driving mechanism needs to be soaked in a reactor tank, a large number of coils and cables on the driving mechanism need to be subjected to waterproof sealing treatment, and the number of external cables is large, the cable length is long, so that the arrangement of the whole reactor and the disassembly and the assembly of equipment are not facilitated. The power of the existing pool type reactor is 5MW maximally, the depth of a pool is about 10 meters, the number of control rod driving mechanisms is small, when a control rod assembly falls down rapidly, the upper end of a steel wire rope is disconnected from the driving assembly, the lower end of the steel wire rope is connected with the control rod assembly, the steel wire rope falls down together, and if the structure is applied to a reactor in a deeper pool, the effective use length of the steel wire rope is longer, so that the control rod assembly is not beneficial to falling down rapidly.
In view of this, the present invention has been made.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a deep water tank type heating pile control rod driving mechanism which at least solves the problem that the control rod assembly is not beneficial to quick rod falling caused by overlong length of a steel wire rope.
The technical scheme of the invention is as follows:
the deep water tank type heating pile control rod driving mechanism comprises a driving assembly, a steel wire rope, a locking device and a driving rod assembly, wherein the driving assembly is in driving connection with the steel wire rope, the steel wire rope and the driving rod assembly are connected with the locking device to achieve/disconnect connection, and the driving rod assembly is connected with the control rod assembly.
Further, the deep water tank type heating pile control rod driving mechanism further comprises a rod position detection assembly, and the rod position detection assembly is matched with the driving rod assembly to reflect the position of the control rod assembly.
Further, in the deep water tank type heating pile control rod driving mechanism, the rod position detection assembly is a detection coil, and at least part of the driving rod assembly is a magnetizer matched with the detection coil.
Further, the deep water pool type heating pile control rod driving mechanism further comprises a reversing mechanism, and the steel wire rope bypasses the reversing mechanism and is connected to the locking device.
Further, the deep water pool type heating pile control rod driving mechanism further comprises a lifting cylinder, the rod position detection assembly is arranged on the outer side of the lifting cylinder, and the locking device can move along the lifting cylinder in the lifting cylinder.
Further, in the deep water tank type heating pile control rod driving mechanism, the driving assembly is arranged right above the control rod assembly.
Further, in the deep water pool type heating pile control rod driving mechanism, the driving rod assembly is connected with the control rod assembly through a detachable joint.
Further, in the deep water tank type heating pile control rod driving mechanism, the locking device is an electromagnet assembly.
The beneficial effects of the invention are as follows:
1. the effective length of the steel wire rope is reduced through the arrangement of the driving rod assembly and the locking device, so that the problem that the control rod assembly is not beneficial to quick rod falling caused by the influence of the steel wire rope is solved;
2. Through the arrangement of the outer cylinder wall, the steel wire ropes cannot be mutually influenced;
3. the locking device is connected with the driving rod assembly in an automatic centering way;
4. the rod position detection of the control rod assembly can be realized through the rod position detection assembly;
5. the dose of core irradiation to the associated components (e.g., components that are raised above the water surface or need to be placed in the stack hall) is reduced.
Drawings
FIG. 1 is a schematic diagram of a deep pool heating pile control rod driving mechanism.
In the drawings, 1, a driving assembly, 2, a reversing mechanism, 3, a steel wire rope, 4, a lifting cylinder, 5, a locking device, 6, a driving rod assembly, 7, a rod position detecting assembly, 8, a detachable joint, 9 and a control rod assembly.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the invention provides a deep water tank type heating pile control rod driving mechanism, which comprises a driving assembly 1, a steel wire rope 3, a locking device 5 and a driving rod assembly 6, wherein the driving assembly 1 is in driving connection with the steel wire rope 3, the steel wire rope 3 and the driving rod assembly 6 are connected with the locking device 5 to realize/disconnect connection, and the driving rod assembly 6 is connected with the control rod assembly. The rod position detection assembly 7 cooperates with the drive rod assembly 6 to reflect the position of the control rod assembly. In this embodiment, the rod position detecting component 7 is a detecting coil, and at least part of the driving rod component 6 is a magnetizer matched with the detecting coil. When the magnetizer moves in the detection coil, the coil senses a signal, thereby reflecting the position of the control rod assembly.
The deep water pool type heating pile control rod driving mechanism also comprises a reversing mechanism 2, and the steel wire rope 3 bypasses the reversing mechanism 2 and is connected to the locking device 5. In this way, the driving assembly 1 does not have to be arranged right above the control rod assembly 9, so that free arrangement according to space is realized, and the compactness is guaranteed. The wire rope 3 is vertically downwards through the center of the back edge driving mechanism, and is connected with the locking device 5 at the lower end, the locking device 5 is connected with the head of the driving rod assembly 6 when receiving signals, and the lower end of the driving rod is connected with the control rod assembly. When the locking device 5 loses a signal (meets the fault protection principle), the self weight of the driving rod assembly 6 and the control rod assembly falls down to realize the function of rapidly falling a rod, and the driving assembly 1 drives the steel wire rope 3 to move to realize the functions of lifting, falling and maintaining the control rod assembly.
The rod position detection assembly 7 is arranged outside the lifting cylinder 4, and the locking device 5 can move along the lifting cylinder 4 in the lifting cylinder 4. The driving assembly 1 is arranged above the control rod assembly. The drive rod assembly 6 is connected to the control rod assembly 9 by means of a detachable joint 8. The detachable joint 8 is connected/disconnected by a special tool, so that the drive rod assembly 6 is connected/disconnected with the control rod assembly 9. The ascending cylinder 4 can avoid the influence of the steel wire rope 3 on the driving rod assembly 6. And, under the cooperation of the locking device 5 and the lifting cylinder 4, the automatic centering connection of the steel wire rope 3 and the driving rod assembly 6 is facilitated. The locking device 5 adopts an electromagnet assembly, and can control the engagement of components including the weight of the control rod assembly 9 and the steel wire rope 3 by using small electromagnetic force, or the locking device 5 of the embodiment can also adopt a pneumatic locking assembly or other devices capable of realizing the same function.
The control rod driving mechanism has the characteristics of simple structure, easiness in installation, convenience in maintenance, good economy and the like. The reversing mechanism 2 is arranged, when the steel wire rope 3 passes through the reversing mechanism 2, the driving assembly 1 is not necessarily arranged right above the control rod assembly 9, the arrangement of the driving assembly 1 above a pool is facilitated, the driving assembly 1 is arranged above a reactor pool, the working environment of the driving assembly 1 is good, the service life of equipment is long, the locking device 5 of the steel wire rope 3 and the driving rod assembly 6 is arranged, under the accident condition, the locking device 5 is opened to release the driving rod assembly 6, the control rod assembly 9 is not influenced by the steel wire rope 3, the rod falling time is shortened, the safe shutdown of the reactor under the accident condition is realized, the lifting cylinder 4 isolates the steel wire rope 3, the steel wire ropes 3 are not influenced by each other in the moving process, the interference influence on the movement of the control rod assembly 9 is prevented, meanwhile, the locking device 5 can be automatically connected in a centering mode under the constraint of the inner wall of the lifting cylinder 4, one section of the driving rod assembly 6 has a magnetic conduction function, a signal is induced by a coil, the positions of the control rod assembly are reflected, the positions of the control rod assembly can be reflected, the distances between the locking device 5 and the steel wire rope 3 can be increased, and the irradiation dose of the locking device 5 and the steel wire rope 3 can be reduced.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. A deep-water-tank type heating pile control rod driving mechanism is characterized by comprising a driving assembly (1), a reversing mechanism (2), a steel wire rope (3), a locking device (5) and a driving rod assembly (6), wherein the driving assembly (1) is in driving connection with the steel wire rope (3), the steel wire rope (3) bypasses the reversing mechanism (2) and then vertically descends along the center of the driving mechanism, the lower end of the steel wire rope is connected with the locking device (5), the locking device (5) is used for connecting the steel wire rope (3) with the head of the driving rod assembly (6) when receiving signals, the lower end of the driving rod assembly (6) is connected with the control rod assembly (9), when the signals are lost, the locking device (5) is used for enabling the steel wire rope (3) to move by means of the dead weight of the driving rod assembly (6) and enabling the control rod assembly (9) to be lifted, the steel wire rope (3) to be lifted and lowered, the control rod assembly (9) to be kept, and the driving assembly (1) is arranged right above the control rod assembly (9) to be arranged freely, so that a compact structure is achieved.
2. The deep water pool heating pile control rod driving mechanism as claimed in claim 1, further comprising a rod position detection assembly (7), wherein the rod position detection assembly (7) cooperates with the driving rod assembly (6) to reflect the position of the control rod assembly.
3. The deep water tank type heating pile control rod driving mechanism according to claim 2, wherein the rod position detecting assembly (7) is a detecting coil, and at least part of the driving rod assembly (6) is a magnetizer matched with the detecting coil.
4. The deep water tank type heating pile control rod driving mechanism according to claim 2, further comprising a lifting cylinder (4), wherein the rod position detecting assembly (7) is arranged outside the lifting cylinder (4), and the locking device (5) can move along the lifting cylinder (4) in the lifting cylinder (4).
5. A deep water pool heating stack control rod drive mechanism as claimed in any one of claims 1 to 3, characterised in that the drive rod assembly (6) is connected to the control rod assembly (9) by means of a detachable joint (8).
6. A deep water pool heating stack control rod driving mechanism as claimed in any one of claims 1-3, characterized in that the latching means (5) is an electromagnet assembly or a pneumatic latching assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342475.3A CN109346195B (en) | 2018-11-12 | 2018-11-12 | A control rod driving mechanism for a deep water pool heating reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342475.3A CN109346195B (en) | 2018-11-12 | 2018-11-12 | A control rod driving mechanism for a deep water pool heating reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109346195A CN109346195A (en) | 2019-02-15 |
| CN109346195B true CN109346195B (en) | 2025-01-28 |
Family
ID=65315269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811342475.3A Active CN109346195B (en) | 2018-11-12 | 2018-11-12 | A control rod driving mechanism for a deep water pool heating reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109346195B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111667929A (en) * | 2020-07-28 | 2020-09-15 | 中国原子能科学研究院 | Control rod drive mechanism and reactor having the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1078492A (en) * | 1996-09-04 | 1998-03-24 | Toshiba Corp | Control rod drive mechanism of reactor and its controller and operation method |
| CN103559919A (en) * | 2013-10-31 | 2014-02-05 | 四川华都核设备制造有限公司 | Control rod driving mechanism and method |
| CN104051029A (en) * | 2014-07-02 | 2014-09-17 | 中国科学院合肥物质科学研究院 | Modularized control rod driving system and method for horizontal reactor core structure |
| CN209216597U (en) * | 2018-11-12 | 2019-08-06 | 中国原子能科学研究院 | A deep water pool heating reactor control rod drive mechanism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2557365B2 (en) * | 1987-02-19 | 1996-11-27 | 株式会社東芝 | Control rod drive mechanism |
| JP2977957B2 (en) * | 1991-07-25 | 1999-11-15 | 株式会社日立製作所 | Control rod drive mechanism |
| JPH05256979A (en) * | 1992-03-16 | 1993-10-08 | Toshiba Corp | Reactor trip device |
| JP2003270375A (en) * | 2002-03-13 | 2003-09-25 | Japan Atom Energy Res Inst | Passive reactor shutdown mechanism |
-
2018
- 2018-11-12 CN CN201811342475.3A patent/CN109346195B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1078492A (en) * | 1996-09-04 | 1998-03-24 | Toshiba Corp | Control rod drive mechanism of reactor and its controller and operation method |
| CN103559919A (en) * | 2013-10-31 | 2014-02-05 | 四川华都核设备制造有限公司 | Control rod driving mechanism and method |
| CN104051029A (en) * | 2014-07-02 | 2014-09-17 | 中国科学院合肥物质科学研究院 | Modularized control rod driving system and method for horizontal reactor core structure |
| CN209216597U (en) * | 2018-11-12 | 2019-08-06 | 中国原子能科学研究院 | A deep water pool heating reactor control rod drive mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109346195A (en) | 2019-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6023042B2 (en) | Control rod drive mechanism and device for nuclear reactor | |
| RU2578172C2 (en) | Control rod drive mechanism | |
| CN102306505B (en) | Operation-jamming resisting control rod driving rod unlocking apparatus | |
| CN108648841B (en) | Nuclear power plant control rod related assembly switching tool | |
| CN109346195B (en) | A control rod driving mechanism for a deep water pool heating reactor | |
| CN108922637A (en) | A kind of nuclear power station-service control rod drive mechanism | |
| CN204728839U (en) | A kind of subway sliding door locks | |
| CN209216597U (en) | A deep water pool heating reactor control rod drive mechanism | |
| CN102708933A (en) | Spent fuel storage shaft shielding well lid and lifting device thereof | |
| CN107188027B (en) | A kind of hanging beam suitable for hydraulic engineering gate | |
| CN106158283B (en) | A kind of single-phase oil immersion type transformer | |
| CN204705459U (en) | Safety net impact testing machine | |
| CN113654849B (en) | Clamp cover type water sampler | |
| CN207134145U (en) | Portable control rod lowering or hoisting gear | |
| KR101227019B1 (en) | Control rod drive shaft handling apparatus | |
| CN210597257U (en) | Foundation bearing capacity detection device for architectural design | |
| JPS627997B2 (en) | ||
| CN213583340U (en) | A built-in oil-immersed transformer for easy maintenance | |
| CN202646925U (en) | Turnover electric cable bridge of reactor pressure vessel head fixed on civil engineering platform | |
| CN101335062B (en) | Check neutron source drive mechanism | |
| CN214535368U (en) | Hydraulic bolt type oil cylinder lifting system | |
| CN213231228U (en) | Automatic change well lid opening device | |
| CN219037845U (en) | Tool for measuring gap between lifting tool and guide device of reactor core detector | |
| CN213536958U (en) | Explosion door automatic device of explosion-proof elevator | |
| CN214787349U (en) | Pile foundation aperture detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |