CN202948742U - Self-powered detector for measuring neutron fluence rate of nuclear reactor core - Google Patents
Self-powered detector for measuring neutron fluence rate of nuclear reactor core Download PDFInfo
- Publication number
- CN202948742U CN202948742U CN2012205616800U CN201220561680U CN202948742U CN 202948742 U CN202948742 U CN 202948742U CN 2012205616800 U CN2012205616800 U CN 2012205616800U CN 201220561680 U CN201220561680 U CN 201220561680U CN 202948742 U CN202948742 U CN 202948742U
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- signal
- heart yearn
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- collector
- emitter
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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
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- Monitoring And Testing Of Nuclear Reactors (AREA)
- Measurement Of Radiation (AREA)
Abstract
The utility model provides a self-powered detector for measuring a neutron fluence rate of a nuclear reactor core. A collector is internally hollow; an emitter is placed inside the collector; an insulator is filled between the collector and the emitter; one end of an outer housing is connected with the collector in a welding manner, and the other end of the outer housing is connected with a sealing head in a welding manner; an insulating layer is arranged inside the outer housing; a neutron signal core wire and a gamma signal compensation core wire are arranged inside the insulating layer; one end of the neutron signal core wire is connected with the emitter in a welding manner, the other end of the neutron signal core wire is connected with the gamma signal compensation core wire in a welding manner, and the other end of the gamma signal compensation core wire is connected with a socket connector; and the socket connector is connected into the end of the sealing head. The self-powered detector can be placed inside the reactor core for a long time and is used for surveying and mapping the neutron fluence rate of the reactor core and monitoring the neutron fluence rate in real time.
Description
Technical field
The utility model belongs to nuclear reactor field, is specifically related to a kind of self-powered detector for the measurement of nuclear reactor neutron fluence rate.
Background technology
The measurement data that the reactor core neutron fluence rate distributes is the important parameter of nuclear reactor safety operation, is also that nuclear fuel is changed, the out-pile instrument is carved in the school, the important evidence of Core Design checking.Self-powered detector is exactly the nuclear detector that these information can be provided.
Summary of the invention
The purpose of this utility model is to provide a kind of self-powered detector for the measurement of nuclear reactor neutron fluence rate, can realize being positioned over for a long time the reactor in-core, implements the reactor core neutron fluence rate is surveyed and drawn, and realizes Real-Time Monitoring.
Realize the technical scheme of the utility model purpose: a kind of self-powered detector for the measurement of nuclear reactor neutron fluence rate, it comprises probe segment, armouring inorganic insulation signal-transmitting cable and connector; Described probe segment comprises emitter, insulator and collector; Collector inner hollow wherein, emitter are placed on collector inside, load insulator between collector and emitter; Described armouring inorganic insulation signal-transmitting cable comprises shell, insulation course, neutron signal heart yearn and γ signal compensation heart yearn; Its housing one end and collector are weldingly connected, the other end and seal head are weldingly connected, insulation course is arranged on enclosure, neutron signal heart yearn and γ signal compensation heart yearn are arranged on insulation course inside, neutron signal heart yearn one end and emitter are weldingly connected, the neutron signal heart yearn other end and γ signal compensation heart yearn are weldingly connected, and the γ signal compensation heart yearn other end is connected with connector; Connector is connected to the seal head end.
A kind of self-powered detector for the measurement of nuclear reactor neutron fluence rate as above, its described emitter is thread.
A kind of self-powered detector for the measurement of nuclear reactor neutron fluence rate as above, its described neutron signal heart yearn is isometric, parallel with γ signal compensation heart yearn.
The beneficial effects of the utility model are: the self-powered detector of measuring for the nuclear reactor neutron fluence rate described in the utility model, armouring inorganic insulation signal-transmitting cable shell and collector welded seal form a whole signal cable and probe segment to guarantee energy long-term stable operation under the high irradiation of reactor core, hyperbar, high temperature, underwater environment.As required, signal-transmitting cable adopts γ signal compensation heart yearn, can effectively reduce the impact of γ signal pair subsignal by γ signal compensation heart yearn.The probe segment output signal is determined to need not plus high-pressure by the physical characteristics of emitter own, is not subjected to the external circuit parameter influence.
Self-powered detector described in the utility model is arranged by carry out rational reconnaissance at reactor core, can measure the radial and axial neutron fluence rate of reactor core, and detector can be placed in reactor for a long time, and transfer signals to control system reactor is carried out real-time monitoring.Self-powered detector has can long-term work under the reactor core rugged surroundings, the life-span is long, stable performance, and need not to provide the operate outside high pressure namely self-supporting can the general kernel that is different from measure the characteristics that detector needs the operate outside high pressure.
Description of drawings
Fig. 1 is the structural representation of the self-powered detector of nuclear reactor neutron fluence rate measurement.
Fig. 2 is the structural representation of detecting head and the inorganic signal-transmitting cable of armouring.
Fig. 3 is the welding schematic diagram.
In figure: 1. pop one's head in; 2. insulator; 3. collector; 4. emitter; 5. the inorganic signal-transmitting cable of armouring; 6. connector; 7. neutron signal heart yearn; 8. insulation course; 9. γ signal compensation heart yearn; 10. seal head; 11. welding back cover; 12. collector and the welding of signal cable shell; 13. seal head and cable jacket welding.
Embodiment
Below in conjunction with drawings and Examples, the self-powered detector of measuring for the nuclear reactor neutron fluence rate described in the utility model is described further.
As shown in Figure 1, a kind of self-powered detector for the measurement of nuclear reactor neutron fluence rate, it mainly comprises probe 1, the inorganic signal-transmitting cable 5 of armouring and connector 6.
Armouring inorganic insulation signal-transmitting cable 5 comprises shell, insulation course 8, neutron signal heart yearn 7 and γ signal compensation heart yearn 9.Its housing one end and collector 3 are weldingly connected, and the other end and seal head 10 are weldingly connected.Insulation course 8 is arranged on enclosure, and neutron signal heart yearn 7 and γ signal compensation heart yearn 9 are arranged on insulation course 8 inside.Neutron signal heart yearn 7 one ends and emitter 4 are weldingly connected, and neutron signal heart yearn 7 other ends and γ signal compensation heart yearn 9 are weldingly connected, and γ signal compensation heart yearn 9 other ends are connected with connector 6; Connector 6 is connected to seal head 10 ends, and connector 6 is connected with signal-transmitting cable by seal head 10 switchings.
Above-mentioned emitter 4 is thread, and length and external diameter can change as required.Emitter 4 is neutron sensitive material, selects as required vanadium (V), rhodium (Rh), cobalt (Co), platinum (Pt), silver (Ag), hafnium (HfO
2), Inco nickel (Inconel) material.
Above-mentioned insulator 2 is selected high-purity Al as required
2O, MgO or SiO
2Material has guaranteed high temperature insulation characteristic.
The above-mentioned neutron signal heart yearn 7 of stating is isometric, parallel with γ signal compensation heart yearn 9.
Claims (3)
1. one kind is used for the self-powered detector that the nuclear reactor neutron fluence rate is measured, and it is characterized in that: it comprises probe segment (1), armouring inorganic insulation signal-transmitting cable (5) and connector (6);
Described probe segment (1) comprises emitter (4), insulator (2) and collector (3); Collector (3) inner hollow wherein, emitter (4) are placed on collector (3) inside, load insulator (2) between collector (3) and emitter (4);
Described armouring inorganic insulation signal-transmitting cable (5) comprises shell, insulation course (8), neutron signal heart yearn (7) and γ signal compensation heart yearn (9); Its housing one end and collector (3) are weldingly connected, the other end and seal head (10) are weldingly connected, insulation course (8) is arranged on enclosure, neutron signal heart yearn (7) and γ signal compensation heart yearn (9) are arranged on insulation course (8) inside, neutron signal heart yearn (7) one ends and emitter (4) are weldingly connected, neutron signal heart yearn (7) other end and γ signal compensation heart yearn (9) are weldingly connected, and γ signal compensation heart yearn (9) other end is connected with connector (6); Connector (6) is connected to seal head (10) end.
2. a kind of self-powered detector of measuring for the nuclear reactor neutron fluence rate according to claim 1, it is characterized in that: described emitter (4) is for thread.
3. a kind of self-powered detector of measuring for the nuclear reactor neutron fluence rate according to claim 1, it is characterized in that: described neutron signal heart yearn (7) is isometric, parallel with γ signal compensation heart yearn (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205616800U CN202948742U (en) | 2012-10-30 | 2012-10-30 | Self-powered detector for measuring neutron fluence rate of nuclear reactor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205616800U CN202948742U (en) | 2012-10-30 | 2012-10-30 | Self-powered detector for measuring neutron fluence rate of nuclear reactor core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202948742U true CN202948742U (en) | 2013-05-22 |
Family
ID=48424434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205616800U Expired - Lifetime CN202948742U (en) | 2012-10-30 | 2012-10-30 | Self-powered detector for measuring neutron fluence rate of nuclear reactor core |
Country Status (1)
| Country | Link |
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| CN (1) | CN202948742U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882175A (en) * | 2015-04-09 | 2015-09-02 | 中国核动力研究设计院 | Delay eliminating method for signal of self-powered rhodium detector based on Luenberger-form H-infinity filtering |
| CN106297921A (en) * | 2016-08-31 | 2017-01-04 | 苏州热工研究院有限公司 | A kind of method utilizing self-powered detector Prompt gamma rays signal to carry out signal compensation |
| CN106501614A (en) * | 2016-11-25 | 2017-03-15 | 中国核动力研究设计院 | Self-powered detector insulation resistance on-line monitoring method and monitoring device |
| CN107316665A (en) * | 2017-06-01 | 2017-11-03 | 西安交通大学 | A kind of Optimization Design of self-power neutron detector structure |
| CN107978379A (en) * | 2017-11-17 | 2018-05-01 | 重集团大连工程技术有限公司 | Segmented In-core Instrumentation detector protects closure assembly |
| CN112687412A (en) * | 2020-12-28 | 2021-04-20 | 兰州大学 | Reactor core fast neutron flux self-powered detector |
| CN112698381A (en) * | 2020-12-28 | 2021-04-23 | 兰州大学 | Self-powered neutron detector |
| CN114167171A (en) * | 2021-11-22 | 2022-03-11 | 中国原子能科学研究院 | High-temperature fission chamber detection device and high-temperature fission chamber detection system |
| CN116543939A (en) * | 2023-05-10 | 2023-08-04 | 兰州大学 | Neutron spectrum measuring device |
-
2012
- 2012-10-30 CN CN2012205616800U patent/CN202948742U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882175A (en) * | 2015-04-09 | 2015-09-02 | 中国核动力研究设计院 | Delay eliminating method for signal of self-powered rhodium detector based on Luenberger-form H-infinity filtering |
| CN106297921A (en) * | 2016-08-31 | 2017-01-04 | 苏州热工研究院有限公司 | A kind of method utilizing self-powered detector Prompt gamma rays signal to carry out signal compensation |
| CN106501614A (en) * | 2016-11-25 | 2017-03-15 | 中国核动力研究设计院 | Self-powered detector insulation resistance on-line monitoring method and monitoring device |
| CN107316665A (en) * | 2017-06-01 | 2017-11-03 | 西安交通大学 | A kind of Optimization Design of self-power neutron detector structure |
| CN107978379A (en) * | 2017-11-17 | 2018-05-01 | 重集团大连工程技术有限公司 | Segmented In-core Instrumentation detector protects closure assembly |
| CN107978379B (en) * | 2017-11-17 | 2019-11-22 | 一重集团大连工程技术有限公司 | Segmented In-core Instrumentation detector protects closure assembly |
| CN112687412A (en) * | 2020-12-28 | 2021-04-20 | 兰州大学 | Reactor core fast neutron flux self-powered detector |
| CN112698381A (en) * | 2020-12-28 | 2021-04-23 | 兰州大学 | Self-powered neutron detector |
| CN114167171A (en) * | 2021-11-22 | 2022-03-11 | 中国原子能科学研究院 | High-temperature fission chamber detection device and high-temperature fission chamber detection system |
| CN116543939A (en) * | 2023-05-10 | 2023-08-04 | 兰州大学 | Neutron spectrum measuring device |
| CN116543939B (en) * | 2023-05-10 | 2024-04-26 | 兰州大学 | Neutron spectrum measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA NUCLEAR CONTROL SYSTEM ENGINEERING CO., LTD. Free format text: FORMER OWNER: CNNC (BEIJING) NUCLEAR INSTRUMENT FACTORY Effective date: 20150526 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150526 Address after: 100176 Hongda South Road, 3, Beijing economic and Technological Development Zone Patentee after: CHINA NUCLEAR CONTROL SYSTEM ENGINEERING Co.,Ltd. Address before: 100176, Hongda South Road, Yizhuang Development Zone, Beijing, Beijing, Daxing District 3 Patentee before: CNNC (Beijing) Nnclear Instrument Factory |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
|
| CX01 | Expiry of patent term |