CN113097822B - Connecting device and connecting equipment comprising same - Google Patents

Connecting device and connecting equipment comprising same Download PDF

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Publication number
CN113097822B
CN113097822B CN202110374179.7A CN202110374179A CN113097822B CN 113097822 B CN113097822 B CN 113097822B CN 202110374179 A CN202110374179 A CN 202110374179A CN 113097822 B CN113097822 B CN 113097822B
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China
Prior art keywords
sealing
sealing tube
connector
connecting device
connection
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CN202110374179.7A
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Chinese (zh)
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CN113097822A (en
Inventor
李强
陈会强
吕征
刘天才
张亚东
郭玥
潘聪
杨文健
池豪
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China Institute of Atomic of Energy
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China Institute of Atomic of Energy
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Priority to CN202110374179.7A priority Critical patent/CN113097822B/en
Publication of CN113097822A publication Critical patent/CN113097822A/en
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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
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • 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
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • 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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  • Gasket Seals (AREA)

Abstract

An embodiment of the present invention discloses a connection device for connecting electrical equipment and connection equipment including the same, the connection device including: sealing the tube; the connecting body is arranged in the sealing pipe; the sealing assembly is arranged at two ends of the sealing pipe and comprises at least one conductive piece, one end of the conductive piece is provided with an insertion hole, and the electrical equipment is inserted into the insertion hole; and one end of the connector is connected to the connecting main body, and the other end of the connector is connected to the other end of the conductive piece. The connection device includes: the above-mentioned connecting device; the connecting main body is positioned in the cylinder body; the fixing piece is arranged at two ends of the cylinder body, and the connecting device is fixed on the fixing piece. The connecting device and the connecting equipment comprising the connecting device have good sealing performance and are beneficial to meeting the requirement of the severe environment of a reactor.

Description

Connecting device and connecting equipment comprising same
Technical Field
The embodiment of the invention relates to the technical field of nuclear reactors, in particular to a connecting device for connecting electrical equipment, which is used for connecting equipment in a reactor containment.
Background
The internal electrical equipment of the containment vessel and the external electrical equipment of the containment vessel need to communicate and connect in the aspects of signals, power and the like; in addition, due to the radioactivity in the reactor, the integrity of the containment vessel should be ensured to prevent the radioactive materials from leaking out. The nuclear power station reactor has working conditions such as high temperature, high pressure, high radiation and the like, and puts strict requirements on the structure and the performance of components used in the reactor, however, the existing components used for the containment vessel of the reactor and connected with electrical equipment have the conditions of unstable structure, reduced performance, reduced service life and even failure in the reactor environment.
Disclosure of Invention
In view of the above, the present invention has been developed to provide a connection device that overcomes, or at least partially solves, the above-mentioned problems.
According to a first aspect of the present invention, there is provided a connecting device for connecting electrical equipment, comprising: a sealing tube; the connecting body is arranged in the sealing pipe; the sealing assemblies are arranged at two ends of the sealing pipe and comprise at least one conductive piece, one end of the conductive piece is provided with an insertion hole, and the electrical equipment is inserted into the insertion hole; and one end of the connector is connected to the connecting main body, and the other end of the connector is connected to the other end of the conductive piece.
Optionally, the seal assembly further comprises: a sealing member made of a ceramic material and provided in a ring shape, the conductive member passing through the sealing member, and the sealing member extending along the conductive member by a predetermined distance; a first connecting member having one end hermetically connected to the conductive member and the other end brazed to the sealing member; and one end of the second connecting piece is brazed on the sealing piece, and the other end of the second connecting piece is connected to the sealing tube in a sealing manner.
Optionally, the inner surface of the sealing element is brazed to the conductive member, and the side surface of the sealing element is brazed to the sealing tube.
Optionally, the seal surface is provided with a metallised activation layer.
Optionally, the surface of the activation layer is provided with a nickel layer.
Optionally, step surfaces are arranged at two ends of the sealing tube and connected to the second connecting piece.
Optionally, the sealing tube and the second connecting piece are connected in a sealing mode through argon arc welding.
Optionally, the sealing tube with when adopting argon arc welding sealing connection between the second connecting piece, the second connecting piece overlap joint is in on the sealing tube, be used for increasing the sealing tube with the mechanical strength that the second connecting piece is connected.
Optionally, the connector surface is provided with a gold layer.
Optionally, a detection piece is arranged on the sealing pipe, and the detection piece is used for detecting gas leakage of the connecting device.
According to another aspect of the present invention, there is provided a connection apparatus for a reactor containment, including: according to a first aspect of the present invention there is provided a connection device; a barrel, the connecting body being located within the barrel; the fixing piece is arranged at two ends of the cylinder body, and the connecting device is fixed on the fixing piece.
Optionally, the sealing tube is fixed to the fixture such that the connecting device is fixed to the fixture.
Optionally, the sealing tube is detachably fixed to the fixing member by a ferrule.
Compared with the prior art, the connecting device provided by the invention adopts a structural form with reasonable design, has the capability of being used under high irradiation and high temperature and good sealing property, can meet the strict technical requirements in the reactor of the nuclear power station, and improves the safety of the reactor.
Drawings
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention. Wherein:
FIG. 1 is a schematic view of a connection device according to one embodiment of the present invention;
FIG. 2 is a schematic structural view of a seal assembly according to one embodiment of the present invention;
FIG. 3 is a schematic structural view of a seal tube according to an embodiment of the present invention;
fig. 4 is a schematic configuration diagram of a connection device according to an embodiment of the present invention.
It should be noted that the figures are not drawn to scale and that elements of similar structures or functions are generally represented by like reference numerals throughout the figures for illustrative purposes. It should also be noted that the drawings are only for convenience in describing the preferred embodiments and are not intended to limit the invention itself. The drawings do not show every aspect of the described embodiments and do not limit the scope of the invention.
In the figure, 10 is a sealing tube, 20 is a connecting body, 30 is a sealing assembly, 40 is a connector, 50 is a cylinder, 60 is a fixing member, 11 is a step surface, 12 is a detecting member, 31 is a conductive member, 32 is a sealing member, 33 is a first connecting member, 34 is a second connecting member, and 311 is an insertion hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention. It should be apparent that the described embodiment is one embodiment of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated are in fact significant. Thus, features defined as "first" and "second" may explicitly or implicitly include, but are not limited to, one or more of the described features.
An embodiment of the present invention provides a connecting device for connecting electrical equipment, and fig. 1 is a schematic structural view of a connecting device according to an embodiment of the present invention, which includes a sealing tube 10, a connecting body 20, a sealing assembly 30, and a socket connector 40.
The connecting body 20 is arranged in the sealing tube 10; the sealing assembly 30 is arranged at two ends of the sealing tube 10, the sealing assembly 30 comprises at least one conductive piece 31, one end of the conductive piece 31 is provided with an insertion hole 311, and the electrical equipment is inserted into the insertion hole 311; one end of the connector 40 is connected to the connecting body 20, and the other end of the connector 40 is connected to the other end of the conductive member 31. The electrical equipment is inserted into the insertion hole 311 of the sealing member 30 provided at one end of the sealing tube 10, and the electrical signal is connected to the electrical equipment inserted into the insertion hole 311 of the sealing member 30 provided at the other end of the sealing tube 10 through the conductive member 31, the connector 40 and the connecting body 20, so that the electrical signal passes through the connecting device. In the embodiment of the present invention, one end of the conductive member 31 is provided with a jack 311, and the electrical device is inserted into the jack 311. In some embodiments, the connector provided at one end of the conductive member 31 may be a wire nose, which is commonly used for connecting and splicing the end of a cable, so that the cable and an electrical appliance can be connected more firmly and safely, and the wire nose can be connected with an electrical appliance through a bolt. In other embodiments, the conductive member 31 may have a connector at one end thereof in a shape of a round bar, and may be connected to the electrical device through the connector. It will be understood by those skilled in the art that the connecting head provided at one end of the conductive member 31 can be made into any other different shapes according to different requirements in practical situations.
Connecting body 20 is configured to conduct electrical signals such that electrical signals across the connecting device may pass through the connecting device, and connecting body 20 may be made of a metallic material. Alternatively, the connecting body 20 may be a copper conductor.
The conductive member 31 serves to conduct an electrical signal so that the electrical signal at both ends of the connection device can pass through the connection device, and the conductive member 31 may be made of a metal material. Alternatively, the conductive member 31 may be a copper conductor.
The connector 40 is plated with gold to reduce contact resistance between the conductors. In an optional embodiment, the thickness of the gold layer is 5-10 μm, and a good effect can be obtained in such a range. In other embodiments, the thickness of the gold layer may have other values. A connector, also called connector, refers to an electrical connector, i.e. a device for connecting two active devices, for transmitting current or signals. The connector 40 is arranged between the connecting main body 20 and the conductive member 31, so that relative rotation between the connecting main body 20 and the conductive member 31 can be realized, and mounting stress can be reduced. When the connecting body 20 or the conductive member 31 needs to be replaced, the connector 40 is mounted so that the components can be quickly and easily replaced.
Fig. 2 is a schematic structural view of a seal assembly 30 according to one embodiment of the present invention. The seal assembly 30 further includes a seal 32, a first connector 33 and a second connector 34. The sealing member 32 is made of a ceramic material and is provided in a ring shape, the conductive member 31 penetrates the sealing member 32, and the sealing member 32 extends along the conductive member 31 by a predetermined distance. In some embodiments, the sealing member 32 may be provided in a ring shape, the conductive member 31 penetrates the sealing member 32, and the sealing member 32 extends along the conductive member 31 by a predetermined distance, which may improve the sealing performance of the connection device. In other embodiments, the sealing element 32 may be provided in other shapes, and the sealing element 32 may also be provided on the outer layer of the conductive element 31.
One end of the first connecting member 33 is hermetically connected to the conductive member 31, and the other end of the first connecting member 33 is brazed to the sealing member 32.
One end of the second connector 34 is brazed to the sealing member 32, and the other end of the second connector 34 is sealingly connected to the sealing tube 10.
The location where the connecting body 20 and the first connector 33 are sealingly connected may be provided with a step surface for positioning the first connector 33. It will be understood by those skilled in the art that the location where connecting body 20 and first coupling member 33 are sealingly coupled may be provided with a stepped surface, and that other structures may or may not be provided for positioning first coupling member 33.
One end of the sealing member 32, which is connected with the first connecting member 33 by brazing, may be provided with a step surface, which is connected with the first connecting member 33 by brazing, and one end of the sealing member 32, which is connected with the second connecting member 34 by brazing, may be provided with a step surface, which is connected with the second connecting member 34 by brazing, so that the position of the sealing member 32, which is connected with the first connecting member 33 by brazing, and the position of the sealing member 32, which is connected with the second connecting member 34 by brazing, are more definite, and brazing is easier. One skilled in the art will appreciate that a stepped surface may be provided on the seal 32, and that other configurations may or may not be provided.
The middle of the sealing member 32 may be provided with a protrusion structure for increasing a creepage distance and improving an insulation performance of the sealing assembly. The minimum creepage distance is a charged area in which an insulating material is charged due to the fact that the insulating material around a conductor is polarized under different use conditions between two conductive parts measured along an insulating surface, and is limited to prevent the possible occurrence of creepage of pollutants on the surface of the insulating material between two conductors. The creepage distance is increased, and the insulating property of the conductive parts can be improved. In some embodiments, the surface of the seal 32 may be provided with a raised structure for increasing the creepage distance. In other embodiments, the seal 32 surface may be provided with a bellows configuration for increasing the creepage distance.
The inner surface of the sealing member 32 is brazed to the conductive member 31, and the side surface of the sealing member 32 is brazed to the sealing tube 10.
The surface of the sealing element 32 is provided with a metalized activation layer, i.e. the outer surface, the inner surface and the side surfaces of the sealing element 32 are provided with metalized activation layers. In the embodiment of the present invention, it is understood that the sealing member 32 is made of a ceramic material, the surface of the sealing member 32 is metalized, i.e., the ceramic is metalized, and the embodiment of the present invention metallizes the surface of the sealing member 32 by an activated Mo — Mn method. The traditional Mo-Mn method is mainly characterized in that refractory metal powder Mo is added, a small amount of low-melting-point Mn is added to form a metallization formula, a binder is added to coat the surface of the sealing element 32, and then the metallization layer is formed by sintering. The activated Mo-Mn method adopted in the embodiment of the invention is an improvement on the basis of the traditional Mo-Mn method, the metallization temperature is reduced by adding an activating agent and replacing metal powder with oxides or salts of molybdenum and manganese, the metal powder and the sealing element 32 can be firmly combined by using the activated Mo-Mn method, the wettability can be greatly improved, and the effective and reliable connection of ceramic and metal can be realized. As will be appreciated by those skilled in the art, the commonly used methods for preparing ceramic metallizations also include reactive metal brazing, direct copper cladding, and magnetron sputtering, and these methods are known per se to those skilled in the art and will not be described in detail herein.
After the surface of the sealing element 32 is metallized, a nickel layer is electroplated for realizing solder spreading and wetting in the soldering process and preventing the solder from corroding the metallized activation layer. In an alternative embodiment, the thickness of the nickel layer is 5-10 μm, and a good brazing effect can be obtained in the range. In other embodiments, the thickness of the nickel layer may be other values.
As will be appreciated by those skilled in the art, the ceramic substrates commonly used in ceramic metallization may be SiC, BeO, AlN, Al2O3Isoceramics, wherein the SiC ceramics have higher thermal conductivity, but the higher dielectric constant and lower insulation voltage limit their application in the high frequency field; the BeO ceramic has extremely high heat conductivity and low-temperature heat conductivity; the AlN ceramic has excellent electrical property and thermal property, is considered as a high-thermal-conductivity ceramic substrate with the greatest development prospect, has lower dielectric constant and high mechanical strength, and can still normally work under severe conditions, but the AlN ceramic needs to be sintered under inert atmosphere, so that the energy consumption is large, and the cost is higher; al (Al)2O3The ceramic is the most mature substrate material at present, and has the advantages of high mechanical strength, high hardness, wear resistance, high electrical insulation strength, high thermal shock resistance, good chemical stability, rich raw material sources, simple manufacturing process and low price, so the Al is 2O3Ceramics have become one of the most widely used ceramics for ceramic metallization. Alternatively, the seal 32 in embodiments of the present invention may employ 95% Al2O3A ceramic ring.
In the embodiment of the present invention, optionally, the conductive member 31 may be made of a metal material, and the sealing member 32 may be made of a ceramic material, and the conductive member 31 and the sealing member 32 are brazed, that is, the metal and the ceramic are brazed, so as to achieve inorganic sealing of the connection device and meet the requirement of working in a high-temperature and high-pressure environment. The first connection member 33 may be provided in a bellows structure for reducing residual stress generated during the brazing process by its elasticity. It will be understood by those skilled in the art that the first connecting member 33 may be configured in other configurations according to different requirements of actual conditions. Alternatively, the first connection member 33 may be a kovar ring or an oxygen-free copper ring for reducing residual stress generated during brazing.
In the embodiment of the present invention, optionally, the sealing tube 10 may be made of a metal material, the sealing element 32 may be made of a ceramic material, and the sealing tube 10 and the sealing element 32 are brazed, that is, the metal and the ceramic are brazed, so as to achieve the inorganic sealing of the connection device and meet the requirement of working in a high-temperature and high-pressure environment. The second connection member 34 may be provided in a bellows structure for reducing residual stress generated during the brazing process by using its elasticity. It will be appreciated by those skilled in the art that the second connecting member 34 may be provided in other configurations according to the actual requirements. Alternatively, the second connector 34 may be a kovar ring for reducing residual stresses generated during brazing.
In an embodiment of the present invention, the first and second connection members 33 and 34 may be alternatively made of a metal material, and one end of the first connection member 33 is brazed to the sealing member 32 and one end of the second connection member 34 is brazed to the sealing member 32 for improving the sealability of the connection device.
In some embodiments, the thickness of the first and second connection members 33 and 34 is 0.5 to 1mm, and setting the thickness of the first and second connection members 33 and 34 within the above range may have an advantageous effect on the brazing process. It will be understood by those skilled in the art that the thickness of the first connecting member 33 and the second connecting member 34 may be set to other values according to different requirements of actual conditions.
In the brazing process, the function of the brazing filler metal is very important, and the brazing filler metal directly influences the quality and the mechanical property of a brazed joint. Therefore, factors such as wettability, spreadability, diffusion between the brazing material and the base material, and uniformity of the composition of the brazing material are sufficiently considered in selecting the brazing material. The solders currently used for ceramic metal brazing can be divided into traditional solders and amorphous solders. Conventional solders may include some precious metal solders: silver-based solder, copper-based solder, gold-based solder and the like, and the solder has high cost and poor wettability with ceramic materials. The amorphous brazing filler metal is prepared from amorphous alloy, has a unique structure, and has good wettability with ceramic and metal materials. The amorphous brazing filler metal commonly used in ceramic metal brazing can be Ni-based amorphous brazing filler metal, Cu-based amorphous brazing filler metal, Ti-based amorphous brazing filler metal and the like. Since these solders are known per se to those skilled in the art, they will not be described herein. Alternatively, the solder may be an Ag-Cu28 eutectic composition solder having good wettability and ductility, and the soldering apparatus may be a vacuum furnace or a hydrogen furnace.
Fig. 3 is a schematic structural view of the sealing tube 10 according to an embodiment of the present invention. The two ends of the sealing tube 10 are provided with the step surfaces 11 for connecting the second connecting piece 34, and the step surfaces 11 can enable the sealing tube 10 to be more accurately connected with the second connecting piece 34 in a sealing manner. One skilled in the art will appreciate that the stepped surface 11 may be provided on the sealing tube 10, and other structures may or may not be provided.
The sealing tube 10 and the second connecting member 34 can be hermetically connected by argon arc welding, which is the most widely used welding technique in the current welding, and argon is used as gas protection for electric arc welding, so that air can be well isolated outside a welding area by argon, the air is prevented from oxidizing the welding area, and the welding quality is ensured. The welding method between the sealing tube 10 and the second connecting member 34 can be electroslag welding, resistance welding, friction welding, etc., which are known to those skilled in the art and will not be described herein. It will be understood by those skilled in the art that different welding methods may be selected between the sealing tube 10 and the second connector 34 according to different needs in actual situations.
When the sealing pipe 10 and the second connecting piece 34 are connected in an argon arc welding and sealing manner, the joint form can be an overlap joint, one end of the second connecting piece 34 is overlapped on the step surface 11 of the sealing pipe 10, so that one end of the second connecting piece 34 is partially overlapped with the sealing pipe 10, the joint form can improve the sealing performance of the welding of the sealing pipe 10 and the second connecting piece 34, the mechanical strength is increased, and the sealing performance of the connecting device in the embodiment of the invention is improved. The conventional welding joints may be butt joints, cross joints, corner joints, end joints, etc., and since the welding methods themselves are well known to those skilled in the art, they are not described herein. In other embodiments, when the sealing tube 10 and the second connecting member 34 are welded, other welding joints may be used.
The sealing tube 10 is provided with a detection member 12 for detecting gas leakage from the connection device. In some embodiments, the sensing member 12 can be disposed on the sealing member 32, in other embodiments, the sensing member 12 can be disposed on the sealing tube 10, and in other embodiments, both the sealing member 32 and the sealing tube 10 can be disposed with the sensing member 12. It will be appreciated by those skilled in the art that the detecting member 12 can be disposed at any position on the connecting device according to the actual requirements. Alternatively, the detecting member 12 may be provided with a detecting hole structure, or may be provided with another structure.
FIG. 4 is a schematic view of a coupling device according to one embodiment of the present invention, referring to FIG. 4, with coupling body 20 positioned within barrel 50; the fixing members 60 are provided at both ends of the cylinder 50, and the connecting means is fixed to the fixing members 60. In an embodiment of the present invention, the sealing tube 10 may be fixed to the fixing member 60 such that the connection device is fixed to the fixing member 60. In other embodiments, the attachment device may be secured to the fixture 60 by the seal assembly 30.
The gland 10 may be removably secured to the mounting member 60 by a ferrule, and replacement of the connection means may be effected by removal of the ferrule. Alternatively, the ferrule may be made of a metallic material. Alternatively, the fixture 60 may be a flange.
Alternatively, a plurality of such connection devices may be included within the barrel 50 for connecting different electrical devices. Accordingly, the sealing assembly 30 may include a plurality of conductive elements 31, the conductive elements 31 being connected to the connecting body 20 by a socket connector 40 such that electrical signals pass through the connecting device.
The connecting device provided by the embodiment of the invention can be used in a reactor containment and is fixed to the reactor containment. One end of the connecting device is connected to the electrical device inside the containment vessel, and the other end of the connecting device is connected to the electrical device outside the containment vessel. In some embodiments, one end of the connection device may be connected to an internal cable of the reactor containment and the other end of the connection device may be connected to an external cable of the reactor containment, such that the cable traverses the containment and maintains continuity of electrical signals inside and outside the containment. In other embodiments, one end of the connection device may be connected to an internal cable of the reactor containment vessel and the other end of the connection device may be connected to an external cable of the reactor containment vessel for optical path connection of the cables inside and outside the reactor containment vessel.
The reactor containment vessel is also called a reactor protection shell and refers to a sealed metal or concrete shell which is wrapped outside the main equipment of the reactor to play a role in protection. The containment vessel of the reactor is the last barrier for preventing radioactive substances from escaping into the environment, and must be able to withstand the pressure and temperature changes generated during the accident of losing cooling water, natural disasters such as earthquake and cyclone, and accidents such as fragment impact from inside or outside.
For example, embodiments of the present invention provide a connection assembly that may be used in a space reactor, which is a type of reactor that provides energy to spacecraft, such as space reactor power supplies, space reactor propulsion systems, and dual mode space nuclear power systems.
The connecting device is fixed on the shell of the containment, and one end of the connecting device is located outside the shell and used for being connected with the electrical device outside the shell. In some embodiments, the shell body of the shell is a cylindrical barrel body, the top of the shell is hemispherical, and the base of the shell is a convex bottom. In other embodiments, the base of the housing may be a hemispherical bottom, or a flat bottom. In some embodiments, the housing may be provided as a frustoconical housing. In other embodiments, the housing may be provided as a spherical housing. As can be understood by those skilled in the art, the shapes of the shell body, the shell top and the base of the shell body can be processed into different shapes according to different requirements in actual situations.
In some embodiments, the housing may be provided as a double-layered housing. Alternatively, the inner shell may be a prestressed concrete structure and the outer shell may be a reinforced concrete structure. In this manner, the outer shell prevents the radioactive material from continuing to leak out of the interior of the housing when a leak occurs in the inner shell. From the outside of the shell, when the outer shell is damaged by the sudden impact of a foreign object, the inner shell can block the foreign object, and the safety of the reactor is ensured. In some embodiments, a buffer may be added between the inner and outer shells of the housing to increase the ability of the housing to prevent leakage and withstand impact from foreign objects.
The skilled person will understand that the connection device can be fixed at any position of the housing, and the fixed position of the connection device can be determined according to different positions of the reactor in practical situations; the connecting device can be fixed to the shell by welding or other methods; the specific position and fixing mode of the connecting device fixed on the shell are selected according to different requirements in actual situations.
It should also be noted that, in the case of the embodiments of the present invention, features of the embodiments and examples may be combined with each other to obtain a new embodiment without conflict.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and the scope of the present invention is subject to the scope of the claims.

Claims (13)

1. A connecting device for connecting electrical equipment, comprising:
a sealing tube (10);
a connecting body (20), the connecting body (20) being provided within the sealing tube (10);
the sealing assemblies (30) are arranged at two ends of the sealing tube (10), each sealing assembly (30) comprises at least one conductive piece (31), one end of each conductive piece (31) is provided with a jack (311), and the electrical equipment is inserted into the jacks (311);
a connector (40), one end of the connector (40) is connected to the connecting body (20), and the other end of the connector (40) is connected to the other end of the conductive member (31);
wherein the seal assembly (30) further comprises:
a sealing member (32), the sealing member (32) being made of a ceramic material and being provided in a ring shape, the conductive member (31) penetrating the sealing member (32), and the sealing member (32) extending along the conductive member (31) by a predetermined distance;
a first connecting member (33), the first connecting member (33) connecting the conductive member (31) and the sealing member (32);
A second connection (34), the second connection (34) being for connecting the seal (32) and the sealing tube (10).
2. The connecting device of claim 1,
one end of the first connecting member (33) is hermetically connected to the conductive member (31), and the other end of the first connecting member (33) is brazed to the sealing member (32);
one end of the second connector (34) is brazed to the sealing member (32), and the other end of the second connector (34) is sealingly connected to the sealing tube (10).
3. A connection device according to claim 2, wherein the inner surface of the sealing member (32) is brazed to the conductive member (31), and the side surface of the sealing member (32) is brazed to the sealing tube (10).
4. Connecting device according to claim 2, characterized in that the surface of the sealing element (32) is provided with a metallized activation layer.
5. The connection device according to claim 4, wherein the surface of the activation layer is provided with a nickel layer.
6. The connecting device according to claim 2, characterized in that the sealing tube (10) is provided with a stepped surface (11) at both ends, connected to the second connecting piece (34).
7. The connecting device according to claim 6, characterized in that the sealing tube (10) and the second connecting piece (34) are hermetically connected by argon arc welding.
8. The connecting device according to claim 7, characterized in that when the sealing tube (10) and the second connecting piece (34) are connected in a sealing manner by argon arc welding, the second connecting piece (34) is lapped on the sealing tube (10) for increasing the mechanical strength of the connection between the sealing tube (10) and the second connecting piece (34).
9. A connecting device according to claim 1, characterised in that the surface of the connector (40) is provided with a gold layer.
10. The connection device according to claim 1, characterized in that the sealing tube (10) is provided with a detection member (12), the detection member (12) being adapted to detect a gas leakage of the connection device.
11. A connection apparatus for a reactor containment, comprising:
the connecting device of any one of claims 1-10;
a barrel (50), said connecting body (20) being located within said barrel (50);
the fixing pieces (60) are arranged at two ends of the barrel body (50), and the connecting device is fixed on the fixing pieces (60).
12. The connecting device according to claim 11, characterized in that the sealing tube (10) is fixed to the fixing member (60) such that the connecting means is fixed to the fixing member (60).
13. The connecting device according to claim 12, characterized in that the sealing tube (10) is detachably fixed to the fixing element (60) by means of a ferrule.
CN202110374179.7A 2021-04-07 2021-04-07 Connecting device and connecting equipment comprising same Active CN113097822B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1490822A (en) * 2003-09-12 2004-04-21 清华大学 Reactor containment thermocouple penetration piece
CN103345949A (en) * 2013-07-05 2013-10-09 清华大学 Cermet sintered high temperature and high pressure electrical penetration assembly
CN103544998A (en) * 2013-09-28 2014-01-29 上海发电设备成套设计研究院 Novel glass or ceramic sintered electrical penetration assembly for double-layered secure shell
CN104217772A (en) * 2014-08-15 2014-12-17 江苏华光电缆电器有限公司 High-temperature high-pressure electrical penetration assembly
CN205984295U (en) * 2016-07-19 2017-02-22 江苏华光电缆电器有限公司 Middling pressure electrical penetration assembly ceramic assembly
CN108831571A (en) * 2018-06-22 2018-11-16 清华大学 Electrical penetration and its manufacturing method electrically run through device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1490822A (en) * 2003-09-12 2004-04-21 清华大学 Reactor containment thermocouple penetration piece
CN103345949A (en) * 2013-07-05 2013-10-09 清华大学 Cermet sintered high temperature and high pressure electrical penetration assembly
CN103544998A (en) * 2013-09-28 2014-01-29 上海发电设备成套设计研究院 Novel glass or ceramic sintered electrical penetration assembly for double-layered secure shell
CN104217772A (en) * 2014-08-15 2014-12-17 江苏华光电缆电器有限公司 High-temperature high-pressure electrical penetration assembly
CN205984295U (en) * 2016-07-19 2017-02-22 江苏华光电缆电器有限公司 Middling pressure electrical penetration assembly ceramic assembly
CN108831571A (en) * 2018-06-22 2018-11-16 清华大学 Electrical penetration and its manufacturing method electrically run through device

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