CN115985532A - Be used for nuclear power plant's reactor core instrument complete set measurement processing system - Google Patents
Be used for nuclear power plant's reactor core instrument complete set measurement processing system Download PDFInfo
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- G—PHYSICS
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- 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
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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
- G21C17/108—Measuring reactor flux
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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
- G21C17/112—Measuring temperature
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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
- G21C17/116—Passages or insulators, e.g. for electric cables
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a complete measurement processing system for a nuclear power plant reactor core instrument, relates to the technical field of nuclear reactor core instruments, and solves the problems of reactor core instrument dispersion, more pressure vessel penetration interfaces and complex system interfaces and connecting cables in the prior art, and the specific scheme is as follows: a complete measurement processing system for a nuclear power plant reactor core instrument comprises a reactor core instrument sleeve assembly, a signal cable assembly and a signal processing device which are sequentially connected; the multi-core instrument sleeve assembly is radially arranged in the reactor core, a thermocouple and a plurality of self-powered detectors are axially arranged in the reactor core instrument sleeve assembly, the core wires of the thermocouple and the self-powered detectors are connected with an electric connector at the top of the reactor core instrument sleeve assembly, the multi-core instrument sleeve assembly is connected with one end of a signal cable assembly through the electric connector, and the other end of the signal cable assembly is provided with a branch pipe which is connected with signal processing equipment through the electric connector in a one-to-many mode.
Description
Technical Field
The invention relates to the technical field of nuclear reactor core instruments, in particular to a complete measurement processing system for a nuclear power plant core instrument.
Background
In the normal operation process of the nuclear power station, the reactor pressure vessel is in a harsh environment with high temperature, high pressure and high radiation. When the reactor operating power reaches a certain rated power, a reactor core instrument system is required to be used for continuously monitoring the neutron fluence rate inside the reactor core of the reactor, reminding an operator of the safety allowance of the reactor, and correspondingly controlling the reactivity; meanwhile, under the working conditions of normal operation, after accidents and the like, the system monitors the temperature of the inlet and the outlet in the reactor core of the reactor, and related signals are sent to the protection system to participate in the protection and control of the reactor core. A plurality of reactor core instrument sleeve assemblies need to be arranged in the reactor pressure vessel, and different reactor core instrument sleeve assemblies need to be connected with corresponding processing equipment through lines, so that the problems of dispersion of the existing reactor core instruments, more pressure vessel penetration interfaces, and complex system interfaces and connecting cables are caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a complete measurement processing system for a nuclear power plant reactor core instrument, which splits different self-powered detectors and thermocouple signals or combines similar thermocouple signals, so as to achieve the purposes of classifying and carding signals and sending the signals to set processing equipment, and simplify the number of cables and the interface of a containment penetration piece.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a complete measurement processing system for a nuclear power plant reactor core instrument comprises a reactor core instrument sleeve assembly, a signal cable assembly and a signal processing device which are sequentially connected;
many reactor core instrument sleeve assemblies are arranged radially in the reactor core, set up thermocouple and a plurality of self-power detectors along the axial in the reactor core instrument sleeve assembly, and the heart yearn of thermocouple and self-power detector is connected with the electrical connector at reactor core instrument sleeve assembly top, and many reactor core instrument sleeve assemblies pass through electrical connector with a signal cable assembly one end and are connected, and the signal cable assembly other end sets up the branch road pipe to a divide many forms to pass through electrical connector and signal processing equipment and be connected.
As a further implementation mode, both ends of the signal cable assembly are provided with electric connectors, the electric connector at one end of the signal cable assembly is connected with the electric connectors at the tops of the reactor core instrument sleeve assemblies, the electric connector at the other end of the signal cable assembly is connected with the electric connectors of different signal processing devices, the signal cable assembly and the electric connectors are of an integrated structure, and the electric connectors are of pin or jack structures.
As a further implementation manner, the signal cable assembly comprises an electrical connector, the electrical connector is fixedly connected with the rear shell, a thermocouple signal cable and a self-powered detector signal cable are arranged in the signal cable assembly in parallel, an elbow connecting pipe connected with the rear shell is arranged outside the signal cable assembly, and one end, far away from the rear shell, of the elbow connecting pipe is sequentially connected with a corrugated pipe joint and a corrugated pipe;
the back of the corrugated pipe is connected with a shunt pipe to guide a thermocouple signal cable and a self-powered detector signal cable, the corrugated pipe is arranged outside the signal cable, the corrugated pipe is sequentially connected with a corrugated pipe head and a corrugated pipe joint, and the corrugated pipe joint is connected with an electrical connector.
As a further implementation manner, the core instrument thimble assembly comprises a shell, a plurality of self-powered detectors are axially fixed in the shell, the thermocouples are fixed at two ends of the self-powered detectors, and one end of the shell is provided with a bullet end plug.
As a further implementation manner, a fixing bracket is axially arranged in the shell, and the self-powered detector and the thermocouple are fixed on the fixing bracket through fixing belts.
As a further implementation mode, a joint is arranged at one end, away from the bullet head end plug, of the shell, the joint is connected with a header, the header is connected with a flexible dense corrugated pipe, and the flexible dense corrugated pipe is sequentially connected with a connecting pipe, a rear shell header, a rear shell and an electrical connector.
As a further implementation, the electrical connector housing is provided with a dust cover, and the lead wires of the self-powered probe and the thermocouple are welded with the electrical connector terminals.
As a further implementation, the self-powered detector is provided with a signal core wire and a corresponding background signal wire, and the signal core wire and the background signal wire are transmitted through a signal cable.
As a further implementation manner, the signal processing device comprises an amplifier board card, a data link card, a communication module, a power supply module and an electrical connector, wherein the electrical connector is positioned at the top of the signal processing device and is connected with the electrical connector of the signal cable assembly in a matching manner.
As a further implementation manner, the signal processing apparatus further includes an AD conversion module for converting the signal of the signal cable assembly into a digital signal.
The beneficial effects of the invention are as follows:
1. the multifunctional reactor core instrument sleeve assembly correspondingly comprises a plurality of measuring instrument elements, and the cable assembly matched and connected with the multifunctional reactor core instrument sleeve assembly adopts a combined integrated structure, i.e. different self-powered detectors and thermocouple signals can be split or the same type of thermocouple signals can be combined in a one-to-many or multi-to-many mode, so that the purposes of classifying and carding the signals and sending the signals to set processing equipment are achieved, and the number of cables and the interface of a containment penetration assembly are simplified.
2. The reactor core instrument thimble assembly can comprise a neutron detector and a plurality of temperature detector instruments, and the instruments are integrated in one thimble assembly and inserted into the fuel assembly in an integration mode, so that the top opening of the pressure vessel is greatly reduced, and the system interface is simplified.
3. The measuring instruments such as the self-powered detector, the reactor core thermocouple and the like are arranged at intervals in the axial direction, so that the outer diameter of the reactor core instrument sleeve assembly can be reduced, and the effect of easy insertion into the guide pipe in the pressure vessel and the reactor core is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic diagram of a complete measurement processing system for a core instrument according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a core instrumentation thimble assembly according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a self-powered probe and thermocouple arrangement in an embodiment of the invention.
Fig. 4 is a schematic diagram of the operation of a rhodium self-powered detector in an embodiment of the invention.
Fig. 5 is a schematic structural diagram of a multiple-in-one signal cable assembly according to an embodiment of the invention.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.
Wherein: 1. the novel high-voltage power supply comprises a dust cover, 2. An electric connector, 3. A rear shell, 4. A rear shell header, 5. A connecting pipe, 6. A flexible dense corrugated pipe, 7. A header upper connecting pipe, 8. A header, 9. A joint, 10. A shell, 11. A thermocouple, 12. A self-powered detector, 13. A fixed support, 14. A fixed belt, 15. A bullet head end plug, 16-1. An electric connector, 16-2. A rear shell, 16-3. A thermocouple signal cable, 16-4. A self-powered detector signal cable, 16-5. A soldering block, 16-6. A bent pipe connecting pipe, 16-7. A corrugated pipe joint, 16-8. A corrugated pipe, 16-9. A shunt pipe, 16-10. A corrugated pipe, 16-11. A corrugated pipe joint and 16-12. A corrugated pipe joint.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example one
In a typical embodiment of the present invention, referring to fig. 1 to 5, a complete measurement and processing system for a nuclear power plant core instrument is used for continuous measurement of neutron fluence rate and temperature signals in a nuclear power plant reactor, and the complete equipment related to the system has high integration level, and includes a core instrument sleeve assembly, a signal cable assembly, and a signal processing device, which are connected in sequence; many reactor core instrument sleeve assemblies are arranged radially in the reactor core, set up thermocouple and a plurality of self-power detectors along the axial in the reactor core instrument sleeve assembly, and the heart yearn of thermocouple and self-power detector is connected with the electrical connector at reactor core instrument sleeve assembly top, and many reactor core instrument sleeve assemblies pass through electrical connector with a signal cable assembly one end and are connected, and the signal cable assembly other end sets up the branch road pipe to a divide many forms to pass through electrical connector and signal processing equipment and be connected.
The reactor core instrument sleeve assembly is connected with the signal cable assembly connector in a matching mode through the top connector, the multi-section (multi-form) cable assemblies are connected through the matching electrical connector, and the cable assemblies are connected with the signal processing cabinet or the electrical penetration assembly through the matching electrical connector.
Specifically, as shown in fig. 1, the core instrumentation thimble assembly extends through the reactor pressure vessel and delivers accurately positioned self-powered probes and thermocouples to the core design locations for accurate measurements. The self-powered detector and thermocouple should be able to withstand the harsh environment of high temperature, high pressure, and high irradiation in the reactor. The signal cable assembly is disposed in a containment vessel outside of the pressure vessel, which is relatively environmentally conditioned compared to the core instrumentation thimble assembly, but is also required to withstand the higher temperature and radiation dose conditions over its lifetime. The signal processing device can be arranged in the containment or outside the containment according to the engineering condition of the nuclear power plant, and in order to guarantee the measurement precision, the arrangement position of the signal processing device is usually a position which does not bear the environmental conditions of high temperature and high radiation.
The signal processing device comprises two signal processing cabinets which are connected with the reactor core instrument sleeve assembly through a self-powered detector signal cable, and the signal processing cabinets are connected with the interface server/the reactor core online monitoring system.
The reactor core instrument sleeve assembly is respectively connected to the 1E-level interface system and the 1E-level and interface systems through the 1E-level thermocouple signal cable and the non-1E-level thermocouple signal cable. The 1E-grade thermocouple signal cable and the non-1E-grade thermocouple signal cable, as well as the self-powered detector signal cable, are integrated into a single signal cable assembly.
The core instrumentation thimble assembly has high tightness and integration, penetrates the top of the pressure vessel, and can contain various measuring instruments therein to reduce pressure vessel interfaces. The structure forms of all the integrated self-powered detectors are consistent, the integrated self-powered detectors are axially arranged in the reactor core instrument sleeve assembly, the number of the detectors is determined according to the monitoring requirement of the reactor core, and the plurality of the axially arranged detectors are ensured to cover the whole reactor core height; thermocouples may be placed at the coolant outlet and inlet depending on monitoring requirements. The self-powered detector and the armored thermocouple can be positioned in the reactor core instrument thimble assembly through effective fixing modes such as welding or fixing belts.
Specifically, the core instrument thimble assembly comprises a shell 10, wherein a fixing support 13 is axially arranged in the shell, the fixing support 13 is used for fixing a plurality of self-powered detectors 12, the self-powered detectors and the thermocouples are fixed on the fixing support through fixing belts 14, the thermocouples 11 are armored thermocouples, two thermocouples 11 are fixed at two ends of the self-powered detectors and are also positioned at two ends of the shell, and two ends of the shell are positioned at a coolant inlet and a coolant outlet.
The measuring instruments such as the self-powered detector, the reactor core thermocouple and the like are arranged at intervals in the axial direction, so that the outer diameter of the reactor core instrument sleeve assembly can be reduced, and the effect of easy insertion of the guide pipe in the pressure vessel and the reactor core is achieved.
Because the reactor core instrument assembly is not a vertical arrangement structure in the pressure vessel, and the arrangement space has certain bending, the end part of the sleeve adopts a bullet structure, and the guide and the friction reduction function are realized in the assembly installation and insertion process. Specifically, a bullet end plug 15 is provided at one end of the housing. The connector 9 is arranged at one end, far away from the bullet end plug, of the shell, the connector 9 is connected with the collecting pipe 8, the collecting pipe 8 is connected with the flexible dense corrugated pipe 6, the connecting pipe 7 is arranged on the periphery of the collecting pipe 8, the flexible dense corrugated pipe 6 is sequentially connected with the connecting pipe 5, the collecting pipe 4 of the rear shell, the rear shell 3 and the electric connector 2, and the dust hood 1 is sleeved outside the electric connector 2.
The lead wires of the self-powered probe and thermocouple are soldered to the terminals of the electrical connector 2. The self-powered detector 12 is composed of an emitter, a collector, an insulator, a signal core wire and a ground wire, and all the self-powered detectors 12 are in the same specification. The self-powered detector is provided with a signal core wire and a corresponding background signal wire, and the signal core wire and the background signal wire are transmitted through a signal cable and used for counteracting signal noise in a reactor and improving the signal precision and the detection sensitivity of the detector.
The thermocouple and the self-powered detector are arranged in the reactor core instrument sleeve assembly and connected with the top electrical connector, electromagnetic interference of environmental radiation on an electrical loop of the instrument is reduced, and accuracy and reliability of temperature measurement and neutron fluence rate measurement are improved.
Specifically, one end of a header 8 is connected with a flexible dense corrugated pipe 6, the other end of the header 8 is connected with a shell 10 in a welding mode through a joint 9, the flexible dense corrugated pipe 6 is welded with a rear shell 3, the rear shell 3 is welded with an electric connector 2, a dust cover 1 is screwed on the electric connector 2, one end of the header 8 is welded with the shell 10 through the joint 9, and a bullet end plug 15 is welded with a seal head after the shell 10 is filled with nitrogen.
And the top of the reactor core instrument sleeve assembly is provided with an electrical connector, and a contact pin of the electrical connector is connected with the self-powered detector and the thermocouple signal core wire and is used for being in butt joint with the electrical connector of the signal cable assembly.
The self-powered neutron detector does not need an external bias power supply, can spontaneously form current by absorbing neutrons in a nuclear power station reactor, adopts a low-fuel consumption material, greatly prolongs the service life, adopts a metal material with a large thermal neutron reaction section as an emitter of the self-powered neutron detector, and can adopt sensitive materials such as vanadium, rhodium, cobalt and the like.
The self-powered neutron detector and the thermocouple adopt inorganic armored cables, and can resist severe environments such as high temperature, high pressure, high corrosion, strong radiation and the like in the reactor core. The insulating material of the self-powered neutron detector is high-purity alumina, so that the self-powered neutron detector is not easy to absorb moisture and age, has high-temperature insulation resistance, has little influence on neutron penetration, and can effectively improve the measurement precision of the self-powered neutron detector.
When the reactor core instrument assembly works, air is firstly pumped out to be vacuum, and inert gas such as nitrogen with at least 1 atmospheric pressure is filled in, so that the phenomenon that air with complex components participates in nuclear reaction to further interfere measurement is avoided, and the stability is improved.
The reactor core instrument thimble assembly of this embodiment can include neutron detection instrument and multiple temperature detector instrument, through the integrated mode with the instrument integration in a thimble assembly and insert fuel assembly in, the pressure vessel open-top that has significantly reduced simplifies the system interface.
As shown in fig. 5, the two ends of the signal cable assembly are respectively provided with an electrical connector 16-1, the electrical connector 16-1 at one end of the signal cable assembly is connected with the electrical connectors at the tops of the plurality of reactor core instrument sleeve assemblies, the electrical connector at the other end of the signal cable assembly is connected with the electrical connectors of different signal processing devices, the signal cable assembly and the electrical connectors are of an integrated structure, and the problems that a circuit is complex and cables are connected in a messy mode in a reactor core instrument measurement processing system are solved. The electrical connector is in a pin or socket configuration.
The signal cable assembly comprises a flexible corrugated pipe, a cable pipe penetrating in the corrugated pipe, and electric connectors at two ends of the cable. The cable comprises a shell and a core wire, wherein the shell is a stainless steel seamless steel pipe, the core wire is made of a conductor material, an insulating material is filled between the shell and the core wire, and the shell, the core wire and the insulating material are drawn and annealed to form a flexible armored whole. The electric connector shell is made of stainless steel, and the cable core wire is fixed with the contact pin or the jack of the electric connector in a welding mode. The signal cable assembly is usually made into a cable and connector integrated type, so that the related sealing and electrical performance can be guaranteed, and the signal cable assembly is convenient to insert, pull out and operate and maintain quickly.
The cable assembly connector and the core instrument sleeve assembly connector can be connected in a matching mode. The cable signal assembly is used for transmitting signals of the self-powered detector and the thermocouple, and is designed into a combined integrated type (one-in-three, seven-in-one and the like) cable assembly for the purpose of simple interface form, so that the signals of the self-powered detector and the outlet/inlet thermocouple signals can be sent to different signal processing equipment, and the thermocouple signals in different core instrument sleeve assemblies can be collected to one cable for transmission. Therefore, the instrument core system cable assembly finally sends different signals to different interface devices through various design modes.
Specifically, the signal cable assembly comprises an electrical connector 16-1, the electrical connector is fixedly connected with a rear shell 16-2 in a welding mode, a thermocouple signal cable 16-3 and a self-powered detector signal cable 16-4 are arranged in the signal cable assembly in parallel in a welding mode, meanwhile, a brazing block 16-5 is arranged, an elbow connecting pipe 16-6 connected with the rear shell is arranged outside the signal cable assembly, and one end, far away from the rear shell, of the elbow connecting pipe 16-6 is sequentially connected with a corrugated pipe joint 16-7 and a corrugated pipe 16-8; the back of the corrugated pipe is connected with a shunt pipe 16-9 for guiding unused thermocouple signal cables and self-powered detector signal cables, the outside of the signal cable is provided with a plurality of sections of corrugated pipes 16-10, the corrugated pipes are sequentially connected with corrugated pipe heads 16-11 and corrugated pipe joints 16-12, and the corrugated pipe joints are connected with an electrical connector, so that a plurality of self-powered detector signal cables and thermocouple signal cables are integrated on one signal cable assembly, a one-to-many mode is adopted, the problem of disordered wiring of the existing signal cables is solved, and the effect of the one-to-many integrated cable assembly is achieved.
As shown in fig. 1, a plurality of integrated cable assemblies can transmit the level 1E thermocouple signals, the level 1E non-thermocouple signals and the self-powered detector signals to different interface systems and devices, thereby achieving the effects of reducing the number of core instrumentation thimble assemblies and cable assemblies, and reducing the number of pressure vessel through-piece openings and reducing the risk of leakage.
The cable assembly shell of the embodiment adopts a stainless steel seamless steel tube, the cable has the advantages of high strength, flame retardance, high temperature resistance, irradiation resistance, moisture resistance and high chemical stability, and the service life is long, so that the environmental conditions of normality, abnormality, accidents and the like in a containment vessel of a nuclear power station can be met, and the service life of the third-generation technical nuclear power station for 60 years can be met.
The multifunctional reactor core instrument sleeve assembly correspondingly comprises various measuring instrument elements, and the cable assembly which is matched and connected with the multifunctional reactor core instrument sleeve assembly adopts a combined integrated structure, so that different self-powered detectors and thermocouple signals can be split or the like thermocouple signals can be combined in a one-to-many or multi-to-many mode, the purposes of classifying and combing the signals and sending the signals to the set processing equipment are achieved, and the number of cables and the interface of a containment penetration assembly are simplified.
The signal processing device comprises an amplifier board card, a data link card, a communication module, a power supply module and an electrical connector, wherein the electrical connector is positioned at the top of the signal processing device and is connected with the electrical connector of the signal cable assembly in a matching way, and the signal processing device also comprises an AD conversion module which is used for converting signals of the signal cable assembly into digital signals.
Specifically, the reactor core instrument signal processing device receives a multi-channel micro-current signal from a self-powered detector, firstly conditions and amplifies a weak signal, then converts the weak signal into a digital signal through an AD conversion module, outputs the digital signal through a signal transmission module, sends the digital signal to a corresponding application server and a reactor core online monitoring system in a nuclear power plant, converts the digital signal into reactor core power distribution data and displays the data on a corresponding picture. The interface module of the equipment is adapted to the signal interfaces of the detectors in different forms, and can receive the test signal injected by the external equipment at the same time, so as to calibrate and calibrate the signal conditioning circuit; meanwhile, the reactor core instrument signal processing equipment is provided with a channel detection function, and acquires data such as leakage resistance of a signal transmission channel for correcting a sensor signal.
The signal processing cabinet can process nA-level weak current signals from a self-powered detector, has small precision high temperature drift, improves the precision requirement of a system channel, meets the running requirement of a reactor on a low-power platform, is symmetrically arranged in the reactor core instrument sleeve assemblies, and improves the safety and the reliability of a nuclear power station due to the redundant design of the signal processing cabinet and an internal power supply, communication and processing module.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A complete measurement processing system for a nuclear power plant reactor core instrument is characterized by comprising a reactor core instrument sleeve assembly, a signal cable assembly and a signal processing device which are sequentially connected;
the multi-core instrument sleeve assembly is radially arranged in the reactor core, a thermocouple and a plurality of self-powered detectors are axially arranged in the reactor core instrument sleeve assembly, the core wires of the thermocouple and the self-powered detectors are connected with an electric connector at the top of the reactor core instrument sleeve assembly, the multi-core instrument sleeve assembly is connected with one end of a signal cable assembly through the electric connector, and the other end of the signal cable assembly is provided with a branch pipe which is connected with signal processing equipment through the electric connector in a one-to-many mode.
2. The nuclear power plant core instrument complete measurement processing system as claimed in claim 1, wherein the signal cable assembly is provided with electrical connectors at two ends, the electrical connector at one end of the signal cable assembly is connected with the electrical connectors at the tops of the plurality of core instrument sleeve assemblies, the electrical connector at the other end of the signal cable assembly is connected with the electrical connectors of different signal processing equipment, the signal cable assembly and the electrical connectors are in an integrated structure, and the electrical connectors are in a pin or socket structure.
3. The nuclear power plant core instrument complete measurement processing system as claimed in claim 1, wherein the signal cable assembly comprises an electrical connector fixedly connected with the back shell, a thermocouple signal cable and a self-powered detector signal cable are arranged in parallel in the signal cable assembly, an elbow connecting pipe connected with the back shell is arranged outside the signal cable assembly, and one end of the elbow connecting pipe, far away from the back shell, is sequentially connected with a corrugated pipe joint and a corrugated pipe;
the back of the corrugated pipe is connected with a shunt pipe to guide a thermocouple signal cable and a self-powered detector signal cable, the corrugated pipe is arranged outside the signal cable, the corrugated pipe is sequentially connected with a corrugated pipe head and a corrugated pipe joint, and the corrugated pipe joint is connected with an electrical connector.
4. The nuclear power plant core instrumentation set measurement and processing system of claim 1 wherein the core instrumentation set assembly comprises a housing having a plurality of self-powered probes axially secured therein, wherein the thermocouples are secured to opposite ends of the self-powered probes, and wherein a bullet-end plug is disposed at one end of the housing.
5. The nuclear power plant core instrumentation set measurement processing system of claim 4 wherein a fixed bracket is axially disposed within the housing, the self-powered probe and the thermocouple being secured to the fixed bracket by a securing strap.
6. The nuclear power plant core instrumentation suite measurement and processing system of claim 5, wherein a joint is arranged at an end of the outer shell away from the bullet end plug and is connected with a header, the header is connected with a flexible dense corrugated pipe, and the flexible dense corrugated pipe is sequentially connected with a connecting pipe, a back shell header, a back shell and an electrical connector.
7. The nuclear power plant core instrumentation suite measurement processing system according to claim 6, wherein said electrical connector housings are provided with dust covers, and wherein said lead wires from the powered probes and thermocouples are soldered to electrical connector terminals.
8. The nuclear power plant core instrumentation suite measurement and processing system of claim 7, wherein the self-powered detector is provided with a signal core line and a corresponding background signal line, the signal core line and the background signal line being transmitted through a signal cable.
9. The nuclear power plant core instrumentation suite measurement and processing system of claim 1, wherein the signal processing device comprises an amplifier card, a data link card, a communication module, a power module, and an electrical connector on top of the signal processing device for mating connection with an electrical connector of a signal cable assembly.
10. The nuclear power plant core instrumentation suite measurement processing system according to claim 9, wherein said signal processing device further comprises an AD conversion module for converting the signal of the signal cable assembly into a digital signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490445.3A CN115985532A (en) | 2022-11-25 | 2022-11-25 | Be used for nuclear power plant's reactor core instrument complete set measurement processing system |
| PCT/CN2023/133832 WO2024109908A1 (en) | 2022-11-25 | 2023-11-24 | Complete measurement and processing system for reactor core instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490445.3A CN115985532A (en) | 2022-11-25 | 2022-11-25 | Be used for nuclear power plant's reactor core instrument complete set measurement processing system |
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| CN115985532A true CN115985532A (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211490445.3A Pending CN115985532A (en) | 2022-11-25 | 2022-11-25 | Be used for nuclear power plant's reactor core instrument complete set measurement processing system |
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| CN (1) | CN115985532A (en) |
| WO (1) | WO2024109908A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024109908A1 (en) * | 2022-11-25 | 2024-05-30 | 上海核工程研究设计院股份有限公司 | Complete measurement and processing system for reactor core instrument |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100960228B1 (en) * | 2009-12-30 | 2010-06-01 | 주식회사 우진 | Advanced fixed type in-core instrumentation |
| CN104332201A (en) * | 2013-07-22 | 2015-02-04 | 中国核动力研究设计院 | New rod-position measuring method |
| 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 |
| CN106531245B (en) * | 2016-11-25 | 2018-11-13 | 浙江伦特机电有限公司 | Used in nuclear power station in-pile instrument sheath assembly |
| CN108269634A (en) * | 2018-01-17 | 2018-07-10 | 上海核工程研究设计院有限公司 | A kind of used in nuclear power station includes the in-pile instrument sheath assembly of isometric arrangement detector |
| CN112331373A (en) * | 2020-11-03 | 2021-02-05 | 浙江伦特机电有限公司 | Fast response nuclear reactor core temperature measurement assembly |
| CN115985532A (en) * | 2022-11-25 | 2023-04-18 | 上海核工程研究设计院股份有限公司 | Be used for nuclear power plant's reactor core instrument complete set measurement processing system |
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2022
- 2022-11-25 CN CN202211490445.3A patent/CN115985532A/en active Pending
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2023
- 2023-11-24 WO PCT/CN2023/133832 patent/WO2024109908A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024109908A1 (en) * | 2022-11-25 | 2024-05-30 | 上海核工程研究设计院股份有限公司 | Complete measurement and processing system for reactor core instrument |
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| WO2024109908A1 (en) | 2024-05-30 |
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