CN106710649A - Nuclear power plant reactor core nuclear instrumentation system - Google Patents
Nuclear power plant reactor core nuclear instrumentation system Download PDFInfo
- Publication number
- CN106710649A CN106710649A CN201611138327.0A CN201611138327A CN106710649A CN 106710649 A CN106710649 A CN 106710649A CN 201611138327 A CN201611138327 A CN 201611138327A CN 106710649 A CN106710649 A CN 106710649A
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- Prior art keywords
- reactor core
- detector
- power plant
- nuclear
- nuclear power
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Classifications
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- 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
-
- 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 nuclear power plant reactor core nuclear instrumentation system which comprises a fixed multi-segment type self-powered detector, a signal conditioning cabinet and a digitized processing and display device which are connected successively, wherein the fixed multi-segment self-powered detector and the signal conditioning cabinet are arranged in a containment, and the digitized processing and display device is arranged outside the containment. Compared with the prior art, the nuclear power plant reactor core nuclear instrumentation system adopts the fixed type self-powered detector, does not require external power supply, does not require external driving of the detector to be inserted into reactor cores during operation, can real-timely measure the reactor core three-dimensional neutron fluence rate on line, and makes the system easier to maintain; with use of the digitized processing and display device, the system has strong computing and graphic display abilities, can process measured data in real time and generate a reactor core three-dimensional power distribution diagram on line, and achieves optimal control of reactor running and online display of the reactor core three-dimensional power distribution diagram.
Description
Technical field
The invention belongs to nuclear power plant's operational monitoring field, it is more particularly related to a kind of nuclear power plant's heap core instrument
Table system.
Background technology
Nuclear power plant's reactor core Nuclear Instrument system is by measuring reactor core neutron fluence rate, the three-dimensional heap core power profile of generation；
Using the data for measuring, ONIS (out-pile Nuclear Instrument system, Outside Nuclear Instrumentation can be carried out
System) power range passage is checked, reactor fuel component burnup is assessed, reactor operation optimum control, to ensure fuel bag
The integrality of shell and safeguard reactor core safety.
Disclosed nuclear power plant's in-core instrumentation system is mostly to rely on the technical scheme that simulation instrument control technology is formed, with knot
Structure is complicated, data processing amount is small, it is visual poor the shortcomings of, and be all regular off-line measurement three-dimensional heap core power distribution, it is impossible to
Measurement in real time, treatment and display heap core power distribution situation.For example, Fig. 1 is referred to, a kind of published nuclear power plant's reactor core instrument
Table system is main by moving miniature fission chamber 10, selection and drive device 12, control and monitoring rack 14, signal transacting and aobvious
The part of showing device 16 4 constitutes.Wherein, moving miniature fission chamber 10 is arranged in containment 20, selection and drive device 12,
Control and monitoring rack 14, signal transacting and display device 16 are arranged on outside containment 20.Moving miniature fission chamber 10 is used
Detector be portable fission detector, detector end by drive and conductive dual-purpose spiral cable 120 with select
Connected with drive device 12, detector is inserted by reactor core by selection and drive device 12, selection and drive device 12 are each only
Can select and drive a detector to measure.Control and monitoring rack 14 are used for control selections and drive device 12, monitoring
The state of Measurement channel 100 and mechanical device.During measurement, detector during heap in-core is moved, signal transacting and display
The neutron fluence rate signal that device 16 is received and storage detector sends, processed offline and drafting reactor core neutron flux rate distribution
Figure.Reactor core Nuclear Instrument system is discontinuous, and at least every 30 equivalent full power days are enabled once, a complete reactor core note
Dose rate measurement work about takes 2 hours.
Above-mentioned reactor core Nuclear Instrument system at least has the following disadvantages：1) portable fission detector is mobile in reactor core need to be outer
Portion powers and the motor by selection and drive device 12 drives, and system architecture is complicated, and working link is more；2) portable fission is visited
Survey the device same time can only simple detector work, complete reactor core fluence rate measurement work is time-consuming more, and can not reality online
When measure；3) hardwired communication volume of transmitted data is small, and signal antidamping and interference free performance are poor, and needs to use a large amount of cables to enter
Row signal transmission and multiple containment penetrations 200；4) real-time processing and transmission reactor core three-dimensional power signal are unable to, it is impossible in real time
Display reactor core three-dimensional power profile, it is impossible to online after-treatment, it is impossible to realize reactor operation optimum control；5) detector or
Selection and the failure of drive device 12 need to re-replace detector and select standby selection and drive device 12, working link
It is many.
With the development of nuclear power and digitlization instrument control technology, simple structure, high-performance to reactor core Nuclear Instrument system,
Line is monitored and graph visualization is proposed and required higher.In view of this, can solve the problem that above mentioned problem it is necessory to provide one kind
Nuclear power plant's reactor core Nuclear Instrument system.
The content of the invention
It is an object of the invention to：There is provided a kind of simple structure, without external drive and can realize On-line sampling system,
Treatment and nuclear power plant's reactor core Nuclear Instrument system of display.
In order to realize foregoing invention purpose, the invention provides a kind of nuclear power plant's reactor core Nuclear Instrument system, it is included successively
The fixed multisection type self-powered detector of connection, signal condition rack and digitized processing and display device；Wherein, fixed multistage
Formula self-powered detector and signal condition rack are arranged in containment, and digitized processing is arranged on containment with display device
Outward.
Improved as one kind of nuclear power plant's reactor core Nuclear Instrument system of the present invention, the fixed multisection type self-powered detector exists
Integrally fixedly mounted in reactor core.
As nuclear power plant's reactor core Nuclear Instrument system of the present invention one kind improve, the fixed multisection type self-powered detector by
The sub- detector of multistage independence is assemblied to form.
Improved as one kind of nuclear power plant's reactor core Nuclear Instrument system of the present invention, the fixed multisection type self-powered detector exists
Electric current is voluntarily produced in radiation field, the size of electric current and change reflect characteristic and the change of radiation field.
Improved as one kind of nuclear power plant's reactor core Nuclear Instrument system of the present invention, the signal condition rack is by detector electricity
Cable is connected with fixed multisection type self-powered detector, the neutron fluence rate signal for gathering detector generation, carries out signal and puts
Greatly, filter and current signal is converted into fiber-optic signal.
Improved as one kind of nuclear power plant's reactor core Nuclear Instrument system of the present invention, the digitized processing includes with display device
Digitized signal processes rack sum word display.
Improved as one kind of nuclear power plant's reactor core Nuclear Instrument system of the present invention, the digitized signal treatment rack passes through light
Fibre is attached and communicates with the signal condition rack in containment.
Improved as one kind of nuclear power plant's reactor core Nuclear Instrument system of the present invention, the digitizing display and digitized signal
Treatment rack connection.
Improved as one kind of nuclear power plant's reactor core Nuclear Instrument system of the present invention, the digitizing display is used for Real time displaying
Reactor core three-dimensional power profile, reactor core monitoring of working condition and alarm screen, the optimal recommendation of reactor core parameter.
Compared with prior art, nuclear power plant's reactor core Nuclear Instrument system of the present invention at least has advantages below：
1) fixed self-powered detector, detector is used integrally to be fixedly mounted in reactor core and can voluntarily produce electricity
Stream, it is not necessary to externally fed, drives detector insertion reactor core so that system architecture during operation also without selection and drive device
Simplified, workflow is few；
2) fixed self-powered detector, detector is used integrally to be fixedly mounted in reactor core, can real-time online measuring heap
Core three-dimensional neutron fluence rate, solving portable fission detector can only simple detector work, a complete reactor core fluence rate
Measurement work takes problems that are many and being unable to On-line sampling system；
3) fiber optic communication mode is used, fiber optic communication data transfer is big, no signal decays, Flouride-resistani acid phesphatase interference performance is strong, because
This improves system data and transmits and antijamming capability, and reduces the usage quantity of system cable and containment penetration, solution
Hardwired communication volume of transmitted data of having determined is small, and signal antidamping and interference free performance are poor, and needs to use a large amount of cables to carry out letter
Number transmission and the problem of multiple containment penetrations；
4) digitized processing and display device are used, makes system that there is stronger calculating and graphics display capability, Neng Goushi
When the data that measure for the treatment of and generation reactor core three-dimensional power profile online, realize reactor operation optimum control and reactor core three-dimensional
Power profile Real time displaying；Signal transacting rack also has data storage and secondary analysis function, can be real-time according to nuclear power plant
Operating mode recommendation response stack operation optimal control mode, to improve reactor core parameter and safeguard reactor core safety；
5) fixed self-powered detector, each detector is used to be assemblied to form by the sub- detector of multistage independence, sub- spy
Survey device length short, convenient manufacture, transport and install, in reactor core can flexible modulation detector measurement height and point position, and
And single sub- breakdown detector is little on reactor core three-dimensional neutron fluence rate measurement quality influence, is not required to re-replace sub- detector,
Make system more easy care.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, nuclear power plant's reactor core Nuclear Instrument system of the present invention is described in detail.
Fig. 1 is the structural representation of disclosed nuclear power plant's reactor core Nuclear Instrument system.
Fig. 2 is the structural representation of nuclear power plant's reactor core Nuclear Instrument system of the present invention.
Specific embodiment
In order that goal of the invention of the invention, technical scheme and its Advantageous Effects become apparent from, below in conjunction with accompanying drawing
And specific embodiment, the present invention will be described in further detail.It is emphasized that the specific reality described in this specification
Mode is applied just for the sake of explaining the present invention, is not intended to limit use occasion of the invention.
Fig. 2 is referred to, nuclear power plant's reactor core Nuclear Instrument system of the present invention includes fixed multisection type self-powered detector 30, signal
Regulating rack 32, optical fiber 34, digitized processing and display device.
Fixed multisection type self-powered detector 30 is arranged in containment 20, and it is integrally fixedly mounted in reactor core, each
Detector is assemblied to form by the sub- detector of multistage independence, and the quantity of sub- detector and position can be according to reactor core size and measuring point positions
Put and be adjusted.Fixed multisection type self-powered detector 30 can voluntarily produce electric current, the size of electric current and change in radiation field
Reflect characteristic and the change of radiation field.
Signal condition rack 32 is arranged in containment 20, and it passes through detector cables 300 with fixed multisection type self-sufficiency energy
Detector 30 is connected, the neutron fluence rate signal for gathering detector generation, carries out signal amplification, filtering and by current signal
It is converted into fiber-optic signal.
Digitized processing is arranged on outside containment 20 with display device, including digitized signal treatment rack 36 and digitlization
Display 38.Digitized signal treatment rack 36 be attached by the signal condition rack 32 in optical fiber 34 and containment 20 and
Communication.Digitizing display 38 and digitlization signal transacting rack 36 are connected, for Real time displaying reactor core three-dimensional power profile,
Reactor core monitoring of working condition and alarm screen, the optimal recommendation of reactor core parameter etc..
Compared with prior art, nuclear power plant's reactor core Nuclear Instrument system of the present invention at least has advantages below：
1) fixed self-powered detector 30, detector is used integrally to be fixedly mounted in reactor core and can voluntarily produce electricity
Stream, it is not necessary to externally fed, drives detector insertion reactor core so that system architecture during operation also without selection and drive device
Simplified, workflow is few；
2) fixed self-powered detector 30 is used, detector is integrally fixedly mounted in reactor core, can real-time online measuring
Reactor core three-dimensional neutron fluence rate, solving portable fission detector can only simple detector work, a complete reactor core fluence
Rate measurement work takes problems that are many and being unable to On-line sampling system；
3) fiber optic communication mode is used, fiber optic communication data transfer is big, no signal decays, Flouride-resistani acid phesphatase interference performance is strong, because
This improves system data and transmits and antijamming capability, and reduces the usage quantity of system cable and containment penetration 200,
Solve hardwired communication volume of transmitted data small, signal antidamping and interference free performance are poor, and need to use a large amount of cables to carry out
The problem of signal transmission and multiple containment penetrations；
4) digitized processing and display device are used, makes system that there is stronger calculating and graphics display capability, Neng Goushi
When the data that measure for the treatment of and generation reactor core three-dimensional power profile online, realize reactor operation optimum control and reactor core three-dimensional
Power profile Real time displaying；Signal transacting rack 36 also has data storage and secondary analysis function, can be according to nuclear power plant's reality
When operating mode recommendation response stack operation optimal control mode, to improve reactor core parameter and safeguard reactor core safety；
5) fixed self-powered detector 30, each detector is used to be assemblied to form by the sub- detector of multistage independence, son
Detector length is short, convenient manufacture, transport and installs, in reactor core can flexible modulation detector measurement height and point position,
And single sub- breakdown detector is little on reactor core three-dimensional neutron fluence rate measurement quality influence, is not required to re-replace sub- detection
Device, makes system more easy care.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out appropriate change and modification.Therefore, the invention is not limited in specific embodiment disclosed and described above, to this
Some modifications and changes of invention should also be as falling into scope of the claims of the invention.Although additionally, this specification
In used some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.
Claims (9)
1. a kind of nuclear power plant's reactor core Nuclear Instrument system, it is characterised in that the fixed multisection type self-sufficiency including being sequentially connected can be detected
Device, signal condition rack and digitized processing and display device；Wherein, fixed multisection type self-powered detector and signal condition machine
Cabinet is arranged in containment, and digitized processing is arranged on outside containment with display device.
2. nuclear power plant's reactor core Nuclear Instrument system according to claim 1, it is characterised in that：The fixed multisection type self-sufficiency energy
Detector is integrally fixedly mounted in reactor core.
3. nuclear power plant's reactor core Nuclear Instrument system according to claim 2, it is characterised in that：The fixed multisection type self-sufficiency energy
Detector is assemblied to form by the sub- detector of multistage independence.
4. nuclear power plant's reactor core Nuclear Instrument system according to claim 1, it is characterised in that：The fixed multisection type self-sufficiency energy
Detector voluntarily produces electric current in radiation field, and the size of electric current and change reflect characteristic and the change of radiation field.
5. nuclear power plant's reactor core Nuclear Instrument system according to claim 1, it is characterised in that：The signal condition rack passes through
Detector cables are connected with fixed multisection type self-powered detector, the neutron fluence rate signal for gathering detector generation, enter
Row signal amplifies, filters and current signal is converted into fiber-optic signal.
6. nuclear power plant's reactor core Nuclear Instrument system according to claim 1, it is characterised in that：The digitized processing and display
Equipment includes that digitized signal processes rack sum word display.
7. nuclear power plant's reactor core Nuclear Instrument system according to claim 6, it is characterised in that：The digitized signal processor
Cabinet is attached and communicated by optical fiber with the signal condition rack in containment.
8. nuclear power plant's reactor core Nuclear Instrument system according to claim 7, it is characterised in that：The digitizing display sum
Word signal transacting rack is connected.
9. nuclear power plant's reactor core Nuclear Instrument system according to claim 8, it is characterised in that：The digitizing display is used for
Real time displaying reactor core three-dimensional power profile, reactor core monitoring of working condition and alarm screen, the optimal recommendation of reactor core parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138327.0A CN106710649A (en) | 2016-12-12 | 2016-12-12 | Nuclear power plant reactor core nuclear instrumentation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138327.0A CN106710649A (en) | 2016-12-12 | 2016-12-12 | Nuclear power plant reactor core nuclear instrumentation system |
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| CN106710649A true CN106710649A (en) | 2017-05-24 |
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ID=58937097
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611138327.0A Pending CN106710649A (en) | 2016-12-12 | 2016-12-12 | Nuclear power plant reactor core nuclear instrumentation system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107358982A (en) * | 2017-06-12 | 2017-11-17 | 中国核电工程有限公司 | A kind of containment thermal-hydraulic experiment system with movable housing |
| CN108759891A (en) * | 2018-05-29 | 2018-11-06 | 岭东核电有限公司 | The detector testing device of pressurized-water reactor nuclear power plant Nuclear Instrument system |
| CN109060009A (en) * | 2018-06-29 | 2018-12-21 | 北京广利核系统工程有限公司 | Suitable for the core temperature water level monitoring device and method under EOP regulation |
| CN109918738A (en) * | 2019-02-12 | 2019-06-21 | 中广核工程有限公司 | Nuclear power plant's reactor capability state three-dimensional visualization method, appraisal procedure and system |
| CN110517799A (en) * | 2019-08-05 | 2019-11-29 | 中广核工程有限公司 | Nuclear power plant's reactor core Nuclear Instrument system |
| CN112382424A (en) * | 2020-11-10 | 2021-02-19 | 中国核动力研究设计院 | Monitoring device under low neutron fluence rate and data processing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4426352A (en) * | 1980-11-14 | 1984-01-17 | The Babcock & Wilcox Company | Composite detector |
| CN1080776A (en) * | 1992-06-22 | 1994-01-12 | 西屋电气公司 | Fixed incore detector |
| US20060165209A1 (en) * | 2005-01-27 | 2006-07-27 | Cheng Alexander Y | Neutron detector assembly with variable length rhodium emitters |
| CN105513657A (en) * | 2015-12-14 | 2016-04-20 | 中广核工程有限公司 | Nuclear power plant integrated in-core instrumentation assembly |
| CN105513656A (en) * | 2015-11-30 | 2016-04-20 | 中广核工程有限公司 | System and method for monitoring reactor core parameters of nuclear power plant |
-
2016
- 2016-12-12 CN CN201611138327.0A patent/CN106710649A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4426352A (en) * | 1980-11-14 | 1984-01-17 | The Babcock & Wilcox Company | Composite detector |
| CN1080776A (en) * | 1992-06-22 | 1994-01-12 | 西屋电气公司 | Fixed incore detector |
| US20060165209A1 (en) * | 2005-01-27 | 2006-07-27 | Cheng Alexander Y | Neutron detector assembly with variable length rhodium emitters |
| CN105513656A (en) * | 2015-11-30 | 2016-04-20 | 中广核工程有限公司 | System and method for monitoring reactor core parameters of nuclear power plant |
| CN105513657A (en) * | 2015-12-14 | 2016-04-20 | 中广核工程有限公司 | Nuclear power plant integrated in-core instrumentation assembly |
Non-Patent Citations (2)
| Title |
|---|
| 付龙俊: "三门核电堆内仪表系统特点分析", 《中国高新技术企业》 * |
| 王大勇: "BEACON在AP1000核电机组运行中的应用", 《中国高新技术企业》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107358982A (en) * | 2017-06-12 | 2017-11-17 | 中国核电工程有限公司 | A kind of containment thermal-hydraulic experiment system with movable housing |
| CN107358982B (en) * | 2017-06-12 | 2020-12-18 | 中国核电工程有限公司 | Containment thermal hydraulic experiment system with movable shell |
| CN108759891A (en) * | 2018-05-29 | 2018-11-06 | 岭东核电有限公司 | The detector testing device of pressurized-water reactor nuclear power plant Nuclear Instrument system |
| CN109060009A (en) * | 2018-06-29 | 2018-12-21 | 北京广利核系统工程有限公司 | Suitable for the core temperature water level monitoring device and method under EOP regulation |
| CN109918738A (en) * | 2019-02-12 | 2019-06-21 | 中广核工程有限公司 | Nuclear power plant's reactor capability state three-dimensional visualization method, appraisal procedure and system |
| CN109918738B (en) * | 2019-02-12 | 2022-12-30 | 中广核工程有限公司 | Three-dimensional visualization method, evaluation method and system for reactor power state of nuclear power plant |
| CN110517799A (en) * | 2019-08-05 | 2019-11-29 | 中广核工程有限公司 | Nuclear power plant's reactor core Nuclear Instrument system |
| CN112382424A (en) * | 2020-11-10 | 2021-02-19 | 中国核动力研究设计院 | Monitoring device under low neutron fluence rate and data processing method thereof |
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