CN202662300U - Electrical penetration assembly in nuclear reactor - Google Patents
Electrical penetration assembly in nuclear reactor Download PDFInfo
- Publication number
- CN202662300U CN202662300U CN2012201621829U CN201220162182U CN202662300U CN 202662300 U CN202662300 U CN 202662300U CN 2012201621829 U CN2012201621829 U CN 2012201621829U CN 201220162182 U CN201220162182 U CN 201220162182U CN 202662300 U CN202662300 U CN 202662300U
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- China
- Prior art keywords
- electrical penetration
- conducting wires
- protective metal
- metal shell
- conductor
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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)
Abstract
The utility model relates to an electrical penetration assembly in a nuclear reactor and belongs to the technical field of nuclear reactor structures. The electrical penetration assembly comprises a plurality groups of conductor assemblies, a cylinder body, a pressure monitoring and aerating device, and the like, wherein the conductor assemblies are arranged in the cylinder body, the two ends of the conductor assemblies are stretched out from the end plates on the two ends of the cylinder body and are fixed on the end plates through pressing nuts, and the pressure monitoring and aerating device is connected with the cylinder body. The conductor assembly is composed of a metal jacket pipe, a plurality of conducting wires and an insulating porcelain tube. The plurality of conducting wires are arranged in the metal jacket pipe, sealed insulating media are arranged between the conducting wires in the metal jacket pipe, sealed insulating porcelain tubes are arranged between the conducting wires on the end parts of the metal jacket pipe, ceramic insulating dope is coated on the surfaces of the conducting wires stretched out from the end parts of the metal jacket pipe, and the insulating porcelain tube is sleeved on the conducting wires. The electrical penetration assembly has the characteristics of radiation resistance, anti-aging, corrosion resistance, high temperature resistance, anti-vibration and high pressure resistance, and the like, and has the advantages of simple manufacturing, low cost and long service life.
Description
Technical field
The utility model relates to a kind of electrical penetration for nuclear reactor, belongs to the nuclear reactor structure technical field.
Background technology
The reactor electrical penetration is installed on the reactor, and the electrical connection of dispatch from foreign news agency instrument equipment is the reactor pressure border components in the realization response heap.Therefore its not only want can withstand prolonged irradiation, burn into high temperature and aging, guarantee sealing and electrical continuity under the normal running (operation) conditions, also need to have in the situations such as various accident conditionses (such as earthquake, LOCA) and satisfy above-mentioned requirements.No. 202076496 patents of CN " armored conductor metal ceramic insulator electrical penetration " disclose a kind of electrical penetration structure, this is simple and reliable for structure, long service life, but have following problem: 1. the structure that adopts of these penetration piece metal armouring pipe two ends can not prevent the Al that fills between heart yearn and the metal armouring pipe
2O
3Or the MgO heat-resistant insulating layer makes moist and makes decreasing insulating; 2. the welding between the perforation of this penetration piece metal armouring pipe and flange or sealed with brazing are owing to be between thick metal (flange) and thin walled shell (metal armouring pipe), and practical operation is difficult, and non-dismountable after the welding.
The electrical penetration of domestic other electrical penetration manufacturing firms all adopts organic material (such as polyetheretherketone or polysulfones) as sealing and the insulating material of conductor assembly, the Xuan forging process is the encapsulating method of conductor assembly, organic material is high temperature resistant the highlyest can only to reach 250 ℃, and Radiation hardness also is lower than the inorganic material such as pottery.
Summary of the invention
The purpose of this utility model is to propose a kind of electrical penetration for nuclear reactor, change the structure of existing electrical penetration and the material of use, make it simple in structure, easy to manufacture, to be used for reactor, or be used for other and need under anti-irradiation, anti-aging, corrosion-resistant, high temperature resistant, the anti-vibration environmental baseline, and improve its sealing and ageing resistance.
A kind of electrical penetration for nuclear reactor that the utility model proposes comprises many group conductor assemblies, cylindrical shell, end plate, cutting ferrule, gland nut and pressure monitoring and aerating device; Described end plate is fixed on the two ends of cylindrical shell, described many group conductor assemblies place in the cylindrical shell, stretch out from the end plate at cylindrical shell two ends respectively at the two ends of conductor assembly, conductor assembly is fixed on the end plate by gland nut, described cutting ferrule is sleeved on the conductor assembly, it is conical that the end of cutting ferrule is, the inwall of conical end wedge pressure jack panel; Described pressure monitoring links to each other with cylindrical shell with aerating device; Described conductor assembly is comprised of protective metal shell pipe, multiple conducting wires and porcelain tube; Described multiple conducting wires places in the protective metal shell pipe, and from the protective metal shell pipe, stretch out, be provided with the sealed insulation medium between the wire in the protective metal shell pipe, be provided with the sealed insulation porcelain plate between the wire of protective metal shell tube end, the conductive line surfaces of stretching out the protective metal shell tube end scribbles ceramic insulation coating, and cover has porcelain tube.
A kind of electrical penetration for nuclear reactor that the utility model proposes, its advantage is:
1, in the electrical penetration of the present utility model, because conductor assembly adopts Al
2O
3Or MgO powder and pottery as conductor assembly interior outer insulating material, therefore effectively avoided aging problem under the high temperature, irradiation of organic material, prolonged the serviceable life of electrical penetration.
2, in the electrical penetration of the present utility model, Al is adopted in the sealing of conductor assembly
2O
3Or MgO powder compacting and in conjunction with the structural shape of ceramic and metal jointing, thoroughly having solved and both satisfied insulation and seal request, the problem that insulator can not make moist has again guaranteed job stability and the reliability of electrical penetration.
3, in the electrical penetration of the present utility model, the hermetically-sealed construction that the sealing means of conductor assembly and cylindrical shell end plate adopts cutting ferrule and nut to cooperatively interact, both guaranteed the good sealing property of electrical penetration inside, be convenient to again assembling, dismounting and the maintenance of electrical penetration, and be convenient to reserve the redundant channel expansion.
4, in the electrical penetration of the present utility model, conductor assembly can be reserved the length that needs according to engineering design, and this just makes the wire in the electrical penetration replace K1 level cable and the thermopair in the prior art, cancel intermediate head, greatly saved equipment investment.
5, in the electrical penetration of the present utility model, miscellaneous part beyond the wire, pottery and metal material have all been adopted, therefore whole electrical penetration has fabulous anti-irradiation, anti-aging (greater than 60 years), the corrosion of anti-strong acid (such as boric acid), high temperature resistant (can reach more than 1000 ℃), high pressure resistant (can reach more than the 10MPa), the characteristics such as antiseismic, makes electrical penetration need be applicable to the multiple environment such as anti-irradiation, anti-aging, corrosion-resistant, high temperature resistant, anti-vibration.
Description of drawings
Fig. 1 is the structural representation of a kind of electrical penetration for nuclear reactor that the utility model proposes.
Fig. 2 is the partial enlarged drawing that cutting ferrule and gland nut cooperatively interact among Fig. 1.
Among Fig. 1 and Fig. 2, the 1st, sealed insulation porcelain plate, the 2nd, protective metal shell pipe, the 3rd, sealed insulation medium, the 4th, wire, the 5th, end plate, the 6th, cylindrical shell, the 7th, conductor assembly, the 8th, gland nut, the 9th, cutting ferrule, the 10th, porcelain tube, the 11st, ceramic insulation coating, the 12nd, pressure monitoring and aerating device.
Embodiment
A kind of electrical penetration for nuclear reactor that the utility model proposes, its structure comprise many group conductor assemblies 7, cylindrical shell 6, end plate 5, cutting ferrule 9, gland nut 8 and pressure monitoring and aerating device 12 as shown in Figure 1.End plate 5 is fixed on the two ends of cylindrical shell 6, many group conductor assemblies place in the cylindrical shell 6, stretch out from the end plate 5 at cylindrical shell two ends respectively at the two ends of conductor assembly, conductor assembly is fixed on the end plate 5 by gland nut 8, cutting ferrule 9 is sleeved on the conductor assembly 7, it is conical that the end of cutting ferrule 9 is, the inwall of conical end wedge pressure jack panel 8, and the matching relationship between cutting ferrule 9 and the gland nut 8 is as shown in Figure 2.Pressure monitoring links to each other with cylindrical shell 6 with aerating device 12.The structure of conductor assembly is comprised of protective metal shell pipe 2, multiple conducting wires 4 and porcelain tube 10 as shown in Figure 2.Multiple conducting wires 4 places in the protective metal shell pipe 2, and from protective metal shell pipe 2, stretch out, be provided with sealed insulation medium 3 between the wire 4 in the protective metal shell pipe 2, be provided with sealed insulation porcelain plate 1 between the wire 4 of protective metal shell pipe 2 ends, the surface of stretching out the wire 4 of protective metal shell tube end scribbles ceramic insulation coating 11, and cover has porcelain tube 10.
The electrical penetration as shown in Figure 1 that the utility model proposes, cylindrical shell 6 can be made of stainless steel, two ends soldering stainless steel end plate 5; Open the through hole of 1-26 or more conductor assemblies on the end plate 5, the conductor assembly 7 that has customized in advance length passes the through hole at two ends, cooperatively interact fixing and the sealing realization through hole by cutting ferrule 9 and gland nut 8, the cutting ferrule gland nut is comprised of hermetic collar (9) and cutting ferrule gland nut (8).
As shown in Figure 2, the sealed insulation medium (3) in the conductor assembly of electrical penetration (7) is sintered to the porcelain knob of 1-19 or more hole count and certain size in advance, then porcelain knob is through on the wire (4) one by one, places in the protective metal shell pipe (2) again.The conductor assembly that assembles after repeatedly cold-drawn and annealing, is made the conductor assembly (7) of needed length and size.Sealed insulation medium (3) is filled in the protective metal shell pipe (2) densely, plays insulation and the effect that seals; For preventing Al
2O
3Or MgO(3) makes moist, carry out sealing-in at the conductor assembly two ends with sealed insulation porcelain plate (1) and conductor (4) and protective metal shell pipe (2).
The electrical penetration that the utility model proposes, after being assembled by the good size of calculated in advance by protective metal shell pipe, conductor and porous porcelain knob, (be not less than 100 ℃) at a certain temperature, after repeatedly drawing and annealing operation, reach the sectional area that needs, length can reach 50-600m.For satisfying wire bending radius and insulating requirements, be positioned at the outer conductor exposed part of protective metal shell pipe and be set with a plurality of porcelain tubes 10 with certain-length and diameter, and can after the penetration piece assembling is finished, brush at the scene inorganic ceramic paint.The rated voltage of conductor assembly can reach 500V-750V, and one minute withstand voltage is 2000V; The core number is the 1-19 core, and cross-sectional area of conductor amasss 1-400mm
2The long-term work temperature can reach 200 ℃-1000 ℃.Conductor assembly is through repeatedly drawing rear oxidation magnesium powder or Al
2O
3Powder reaches enough compaction rates in the protective metal shell pipe, play sealing gas from one section effect of leaking to other end pipe of protecting pipe.The electrical penetration that the utility model proposes, the insulation of conductor assembly and encapsulant are ceramic inorganic material, for example Al
3O
2Or MgO, protecting pipe is stainless steel, can cut down, tungsten and molybdenum material, nickel-base material or their complex, conductor material is fine copper, can cut down, nickel-base material, aldary, iron etc.; Hermetically-sealed construction is the sealing-in of ceramic powder compacting sealing and metal and pottery; Electrical penetration is comprised of many conductor assemblies and stainless steel cylinder and end plate and gas-detecting device, fill the drying nitrogen with certain pressure in the cylindrical shell, be furnished with gas pressure monitoring and aerating device 12 on the cylindrical shell 6, with the leakage of monitored for prolonged periods of time cylindrical shell and carry out timely tonifying Qi; The bite type hermetically-sealed construction is adopted in the duct of end plate.
Because in the electrical penetration of the present utility model, the material that seal member adopts is pottery and metal, have good anti-irradiation, anti-aging, corrosion-resistant, high temperature resistant, anti-vibration, high pressure resistant characteristics, and have the characteristics simple, that cost is low, the cycle in serviceable life is long of making.Conductor assembly can be by the length of reactor electrical penetration length factory customization regulation, also can customize by reactor inner cable length, K1 level cable or thermopair and electrical penetration are combined into one, namely by K1 level cable or thermopair in the alternative prior art of the wire in the electrical penetration, to save equipment cost.
Claims (1)
1. an electrical penetration that is used for nuclear reactor is characterized in that this electrical penetration comprises many group conductor assemblies, cylindrical shell, end plate, cutting ferrule, gland nut and pressure monitoring and aerating device; Described end plate is fixed on the two ends of cylindrical shell, described many group conductor assemblies place in the cylindrical shell, stretch out from the end plate at cylindrical shell two ends respectively at the two ends of conductor assembly, conductor assembly is fixed on the end plate by gland nut, described cutting ferrule is sleeved on the conductor assembly, it is conical that the end of cutting ferrule is, the inwall of conical end wedge pressure jack panel; Described pressure monitoring links to each other with cylindrical shell with aerating device; Described conductor assembly is comprised of protective metal shell pipe, multiple conducting wires and porcelain tube; Described multiple conducting wires places in the protective metal shell pipe, and from the protective metal shell pipe, stretch out, be provided with the sealed insulation medium between the wire in the protective metal shell pipe, be provided with the sealed insulation porcelain plate between the wire of protective metal shell tube end, the conductive line surfaces of stretching out the protective metal shell tube end scribbles ceramic insulation coating, and cover has porcelain tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201621829U CN202662300U (en) | 2012-04-13 | 2012-04-13 | Electrical penetration assembly in nuclear reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201621829U CN202662300U (en) | 2012-04-13 | 2012-04-13 | Electrical penetration assembly in nuclear reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662300U true CN202662300U (en) | 2013-01-09 |
Family
ID=47457188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201621829U Expired - Lifetime CN202662300U (en) | 2012-04-13 | 2012-04-13 | Electrical penetration assembly in nuclear reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662300U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623073A (en) * | 2012-04-13 | 2012-08-01 | 中核能源科技有限公司 | Electrical penetration piece sealed by ceramics and metal and used for nuclear reactor |
| CN107887040A (en) * | 2017-10-30 | 2018-04-06 | 北京航天计量测试技术研究所 | A kind of electrical penetration using ceramic burn-back technique |
| CN108012411A (en) * | 2017-12-25 | 2018-05-08 | 海鹰企业集团有限责任公司 | A kind of direction waterproof method of cable and underwater sound equipment connection structure |
| CN112102971A (en) * | 2020-09-23 | 2020-12-18 | 中国核动力研究设计院 | Capillary penetration piece of nuclear power device and installation method |
-
2012
- 2012-04-13 CN CN2012201621829U patent/CN202662300U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623073A (en) * | 2012-04-13 | 2012-08-01 | 中核能源科技有限公司 | Electrical penetration piece sealed by ceramics and metal and used for nuclear reactor |
| CN102623073B (en) * | 2012-04-13 | 2014-11-26 | 中核能源科技有限公司 | Electrical penetration piece sealed by ceramics and metal and used for nuclear reactor |
| CN107887040A (en) * | 2017-10-30 | 2018-04-06 | 北京航天计量测试技术研究所 | A kind of electrical penetration using ceramic burn-back technique |
| CN108012411A (en) * | 2017-12-25 | 2018-05-08 | 海鹰企业集团有限责任公司 | A kind of direction waterproof method of cable and underwater sound equipment connection structure |
| CN112102971A (en) * | 2020-09-23 | 2020-12-18 | 中国核动力研究设计院 | Capillary penetration piece of nuclear power device and installation method |
| CN112102971B (en) * | 2020-09-23 | 2022-08-05 | 中国核动力研究设计院 | Capillary penetration piece of nuclear power device and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |