CN106785696B - Triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor - Google Patents
Triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor Download PDFInfo
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- CN106785696B CN106785696B CN201611235309.4A CN201611235309A CN106785696B CN 106785696 B CN106785696 B CN 106785696B CN 201611235309 A CN201611235309 A CN 201611235309A CN 106785696 B CN106785696 B CN 106785696B
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- adapter
- connector
- shielding
- layer
- triaxial
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
- H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
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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
Abstract
A triaxial cable connecting assembly for an off-core nuclear testing system of a nuclear reactor relates to the technical field of electrical connectors, and solves the technical problem of electrical signal transmission of the off-core nuclear testing system of the nuclear reactor. The assembly includes a triaxial adapter, and two triaxial connectors; the triaxial connector comprises a connector shielding shell, an outer shielding sleeve, a first ceramic insulator, an inner shielding sleeve, a second ceramic insulator and a connector pin, wherein the outer shielding sleeve, the first ceramic insulator, the inner shielding sleeve, the second ceramic insulator and the connector pin are fixed in the connector shielding shell and are sequentially connected in series; the triaxial adapter comprises an adapter shielding shell, an adapter insert core, an adapter inner insulating layer, an adapter inner shielding layer and an adapter outer insulating layer, wherein the adapter insert core, the adapter inner insulating layer, the adapter inner shielding layer and the adapter outer insulating layer are fixed in the adapter shielding shell; the connector shielding shell is sleeved with a connecting nut, and external threads are formed on the adapter shielding shell. The assembly provided by the invention is used for a severe working environment in a reactor containment.
Description
Technical Field
The invention relates to the technology of electrical connectors, in particular to a technology of a triaxial cable connection assembly for an out-of-stack nuclear testing system of a nuclear reactor.
Background
The neutron detector of the nuclear reactor external nuclear measuring system is arranged in a vertical shaft outside the reactor pressure vessel, and the power of the reactor is monitored by measuring the neutron fluence rate of leakage outside the reactor core, so that continuous and reliable starting and overpower protection are provided for the reactor.
The detector of the nuclear reactor out-of-reactor nuclear testing system is transmitted to the signal processing cabinet outside the containment through the cable component, and because the output signal of the detector is extremely weak, the cable of the nuclear reactor out-of-reactor nuclear testing system should theoretically use a triaxial structure design so as to improve the electromagnetic interference resistance of the system to the greatest extent. However, the tested equipment is arranged in the reactor containment, the working environment in the reactor containment is bad, and a triaxial cable connector capable of bearing the bad working environment in the reactor containment is not available at present, so that the conventional coaxial cable can only be used in the existing nuclear reactor out-of-reactor nuclear testing system.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide the triaxial cable connecting assembly for the nuclear reactor external nuclear testing system, which can bear the severe working environment in the containment of the reactor and ensure the normal transmission of weak output signals of the detector.
In order to solve the technical problems, the invention provides a triaxial cable connection assembly for an out-of-reactor nuclear testing system of a nuclear reactor, which is characterized in that: comprises a triaxial adapter and two triaxial connectors;
the triaxial connector comprises a connector shielding shell, an outer shielding sleeve, a first ceramic insulator, an inner shielding sleeve, a second ceramic insulator and a connector pin, wherein the outer shielding sleeve, the first ceramic insulator, the inner shielding sleeve, the second ceramic insulator and the connector pin are fixed in the connector shielding shell and are sequentially connected in series; the outer shielding sleeve is provided with a via hole for the cable outer shielding layer of the triaxial cable to pass through, the first ceramic insulator is provided with a via hole for the cable inner shielding layer of the triaxial cable to pass through, the inner shielding sleeve is provided with a via hole for the cable inner shielding layer of the triaxial cable to pass through, and the second ceramic insulator is provided with a via hole for the core wire of the triaxial cable to pass through;
the connector pin is a columnar conductor, and a layer of connector inner insulation layer, a layer of connector inner shielding layer and a layer of connector outer insulation layer are sequentially filled between the connector pin and the inner wall of the connector shielding shell from inside to outside;
one end of the connector pin, which is connected with the second ceramic insulator, is a core wire connecting end, the other end of the connector pin is an adapter connecting end, and a core wire inserting hole for inserting a core wire of the triaxial cable is formed in the core wire connecting end of the connector pin;
the triaxial adapter comprises an adapter shielding shell and an adapter inserting core fixed in the adapter shielding shell, wherein the adapter inserting core is a conductor, adapter jacks for inserting adapter connecting ends of connector pins are formed at the left end and the right end of the adapter inserting core, the aperture of each adapter jack is in interference fit with the outer diameter of each adapter connecting end of each connector pin, the adapter connecting ends of the connector pins can form electrical contact with the corresponding adapter jack after being inserted into the corresponding adapter jack, and a layer of adapter inner insulating layer, a layer of adapter inner shielding layer and a layer of adapter outer insulating layer are sequentially filled between the adapter inserting core and the inner wall of the adapter shielding shell from inside to outside;
the connector shielding shell is sleeved with the connecting screw cap, and the adapter shielding shell is provided with external threads matched with the connecting screw cap on the connector shielding shell, so that the connector shielding shell and the adapter shielding shell can be mutually fixed through the connecting screw cap.
The connector shielding shell and the adapter shielding shell provide protection for electric components in the shell cavity, and the connector shielding shell, the first ceramic insulator, the inner shielding sleeve, the second ceramic insulator, the connector inner insulating layer, the connector outer insulating layer, the adapter inner insulating layer and the adapter outer insulating layer provide further protection for the electric components, so that the three-coaxial cable connecting assembly can bear the severe working environment in the reactor containment, and can ensure the normal transmission of weak output signals of the detector under the combined action of the connector inner shielding layer, the adapter inner shielding layer, the connector shielding shell and the adapter shielding shell.
Drawings
FIG. 1 is a front view of a triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor according to an embodiment of the present invention;
FIG. 2 is a front cut-away view of a triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor according to an embodiment of the present invention;
FIG. 3 is a front cut-away view of a triaxial connector in a triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor according to an embodiment of the present invention;
fig. 4 is a front cut-away view of a triaxial adapter in a triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided in detail, but the embodiments are not limited to the embodiments, and all the similar structures and similar variations using the present invention should be included in the protection scope of the present invention, and the reference numerals in the present invention indicate the relationships.
As shown in fig. 1 to 4, the triaxial cable connection assembly for an out-of-stack nuclear testing system of a nuclear reactor according to an embodiment of the present invention is characterized in that: comprises a triaxial adapter 1 and two triaxial connectors 2;
the triaxial connector 2 comprises a connector shielding shell 20, an outer shielding sleeve 22, a first ceramic insulator 23, an inner shielding sleeve 24, a second ceramic insulator 25 and a connector pin 21, wherein the outer shielding sleeve 22, the first ceramic insulator 23, the inner shielding sleeve 24, the second ceramic insulator 25 and the connector pin 21 are fixed in the connector shielding shell 20 and are sequentially connected in series; the outer shielding sleeve 22 is provided with a via hole for the cable outer shielding layer of the triaxial cable to pass through, the first ceramic insulator 23 is provided with a via hole for the cable inner shielding layer of the triaxial cable to pass through, the inner shielding sleeve 24 is provided with a via hole for the cable inner shielding layer of the triaxial cable to pass through, and the second ceramic insulator 25 is provided with a via hole for the core wire of the triaxial cable to pass through;
the connector pin 21 is a columnar conductor, and a layer of connector inner insulation layer 29, a layer of connector inner shielding layer 28 and a layer of connector outer insulation layer 27 are sequentially filled between the connector pin 21 and the inner wall of the connector shielding shell 20 from inside to outside;
one end of the connector pin 21 connected with the second ceramic insulator 25 is a core wire connecting end, the other end is an adapter connecting end, and the core wire connecting end of the connector pin 21 is provided with a core wire inserting hole for inserting a core wire of the triaxial cable;
the triaxial adapter 1 comprises an adapter shielding shell 10 and an adapter insert 11 fixed in the adapter shielding shell 10, wherein the adapter insert 11 is an electric conductor, adapter jacks 111 for inserting adapter connection ends of connector pins 21 are formed at the left end and the right end of the adapter insert 11, the aperture of the adapter jacks 111 is in interference fit with the outer diameter of the adapter connection ends of the connector pins 21, so that the adapter connection ends of the connector pins 21 can form electric contact with the adapter jacks after being inserted into the adapter jacks 111, and a layer of adapter inner insulation layer 12, a layer of adapter inner shielding layer 13 and a layer of adapter outer insulation layer 14 are sequentially filled between the adapter insert 11 and the inner wall of the adapter shielding shell 10 from inside to outside;
the connector shield case 20 is sleeved with a connection nut 26, and the adapter shield case 10 is formed with external threads that mate with the connection nut 26 on the connector shield case, so that the connector shield case and the adapter shield case can be mutually fixed by the connection nut.
The embodiment of the invention is designed and developed according to the technical requirements of an on-site instrument part of an AP/CAP series nuclear power plant reactor external nuclear detection system, a neutron detector of the nuclear power plant reactor external nuclear detection system is arranged in a vertical shaft outside a reactor pressure vessel, and the power of the reactor is monitored by measuring the neutron fluence rate of leakage outside the reactor core, so that continuous and reliable starting and overpower protection are provided for the reactor.
When the coaxial cable connector is used, two triaxial cables to be connected are welded to the core wire connecting ends of the connector pins of the two triaxial connectors respectively in a sealing welding mode; the cable outer shielding layer of the triaxial cable penetrates through the through hole of the outer shielding sleeve 22 and is welded with the first ceramic insulator 23, the cable inner shielding layer of the triaxial cable penetrates through the through hole of the first ceramic insulator 23 and the through hole of the inner shielding sleeve 24 and is welded with the second ceramic insulator 25, the core wire of the triaxial cable penetrates through the second ceramic insulator 25 and stretches into the core wire jack of the connector pin 21 and is welded with the connector pin 21, the first ceramic insulator and the second ceramic insulator are welded and sealed with the core wire and the inner shielding of the triaxial cable, signal conduction is achieved, a ceramic column structure is arranged between the core wire and the shielding, and insulation and pressure resistance effects are achieved;
and then, the adapter connecting ends of the connector pins of the two triaxial connectors are respectively inserted into the left and right adapter jacks of the adapter pins of the triaxial connectors, and the two triaxial connectors and the triaxial connectors are respectively fixed by using connecting nuts, so that the electric connection of the two triaxial cables can be realized.
In the embodiment of the invention, the triaxial connector and the connector inner insulating layer, the connector outer insulating layer, the connector inner insulating layer and the connector outer insulating layer in the triaxial connector are all made of polyether-ether-ketone, and the ceramic insulator, the connector inner insulating layer, the connector outer insulating layer, the connector inner insulating layer and the connector outer insulating layer can ensure insulation and pressure resistance and have the characteristics of radiation resistance, high temperature resistance and difficult moisture absorption; the material of the connector contact pin and the adapter core is copper, and the positions of the connecting contacts are plated with gold; the connector shielding shell, the adapter shielding shell and the connecting screw cap are made of 316L stainless steel, so that the severe environmental requirements of normal operation environment, abnormal operation environment and design reference accidents in the reactor containment can be met.
Claims (1)
1. A triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor, characterized by: comprises a triaxial adapter and two triaxial connectors;
the triaxial connector comprises a connector shielding shell, an outer shielding sleeve, a first ceramic insulator, an inner shielding sleeve, a second ceramic insulator and a connector pin, wherein the outer shielding sleeve, the first ceramic insulator, the inner shielding sleeve, the second ceramic insulator and the connector pin are fixed in the connector shielding shell and are sequentially connected in series; the outer shielding sleeve is provided with a via hole for the cable outer shielding layer of the triaxial cable to pass through, the first ceramic insulator is provided with a via hole for the cable inner shielding layer of the triaxial cable to pass through, the inner shielding sleeve is provided with a via hole for the cable inner shielding layer of the triaxial cable to pass through, and the second ceramic insulator is provided with a via hole for the core wire of the triaxial cable to pass through;
the connector pin is a columnar conductor, and a layer of connector inner insulation layer, a layer of connector inner shielding layer and a layer of connector outer insulation layer are sequentially filled between the connector pin and the inner wall of the connector shielding shell from inside to outside;
one end of the connector pin, which is connected with the second ceramic insulator, is a core wire connecting end, the other end of the connector pin is an adapter connecting end, and a core wire inserting hole for inserting a core wire of the triaxial cable is formed in the core wire connecting end of the connector pin;
the triaxial adapter comprises an adapter shielding shell and an adapter inserting core fixed in the adapter shielding shell, wherein the adapter inserting core is a conductor, adapter jacks for inserting adapter connecting ends of connector pins are formed at the left end and the right end of the adapter inserting core, the aperture of each adapter jack is in interference fit with the outer diameter of each adapter connecting end of each connector pin, the adapter connecting ends of the connector pins can form electrical contact with the corresponding adapter jack after being inserted into the corresponding adapter jack, and a layer of adapter inner insulating layer, a layer of adapter inner shielding layer and a layer of adapter outer insulating layer are sequentially filled between the adapter inserting core and the inner wall of the adapter shielding shell from inside to outside;
the connector shielding shell is sleeved with the connecting screw cap, and the adapter shielding shell is provided with external threads matched with the connecting screw cap on the connector shielding shell, so that the connector shielding shell and the adapter shielding shell can be mutually fixed through the connecting screw cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235309.4A CN106785696B (en) | 2016-12-28 | 2016-12-28 | Triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235309.4A CN106785696B (en) | 2016-12-28 | 2016-12-28 | Triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106785696A CN106785696A (en) | 2017-05-31 |
| CN106785696B true CN106785696B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611235309.4A Active CN106785696B (en) | 2016-12-28 | 2016-12-28 | Triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor |
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| CN (1) | CN106785696B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233124A (en) * | 2017-12-31 | 2018-06-29 | 中国电子科技集团公司第四十研究所 | Three coaxial high pressure electric plug connector of single |
| CN108281818B (en) * | 2018-02-02 | 2024-01-23 | 苏州华旃航天电器有限公司 | Electromagnetic shielding electric connector with double-layer ceramic sealing structure |
| CN109066177B (en) * | 2018-08-20 | 2020-10-09 | 苏州卓诚钛设备有限公司 | Portable reassembling type signal switching device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138843Y (en) * | 1992-11-23 | 1993-07-21 | 上海核工程研究设计院 | Three coaxial connector |
| CN103855561A (en) * | 2013-08-21 | 2014-06-11 | 苏州瑞可达连接系统有限公司 | Radio frequency coaxial connector |
| CN206349583U (en) * | 2016-12-28 | 2017-07-21 | 国核自仪系统工程有限公司 | Triaxial cable connection component for nuclear reactor out-pile Nuclear measurement system |
-
2016
- 2016-12-28 CN CN201611235309.4A patent/CN106785696B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138843Y (en) * | 1992-11-23 | 1993-07-21 | 上海核工程研究设计院 | Three coaxial connector |
| CN103855561A (en) * | 2013-08-21 | 2014-06-11 | 苏州瑞可达连接系统有限公司 | Radio frequency coaxial connector |
| CN206349583U (en) * | 2016-12-28 | 2017-07-21 | 国核自仪系统工程有限公司 | Triaxial cable connection component for nuclear reactor out-pile Nuclear measurement system |
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| Publication number | Publication date |
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| CN106785696A (en) | 2017-05-31 |
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