CN209823032U - Mineral insulated cable assembly - Google Patents
Mineral insulated cable assembly Download PDFInfo
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- CN209823032U CN209823032U CN201822150229.XU CN201822150229U CN209823032U CN 209823032 U CN209823032 U CN 209823032U CN 201822150229 U CN201822150229 U CN 201822150229U CN 209823032 U CN209823032 U CN 209823032U
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- connector
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- insulated cable
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Abstract
The utility model provides a mineral insulated cable subassembly, mineral insulated cable subassembly includes the cable, the cable adopts inorganic mineral insulated cable, mineral insulated cable subassembly still includes: a connector set for connecting one ends of the two cables; the corrugated pipes are sleeved on the peripheries of the cables and used for protecting the cables; and the connector adapter tail is fixedly connected with the connector group and the corrugated pipe. The utility model provides a mineral insulation cable subassembly adopts inorganic design, and cable, connector, switching tail in the subassembly attach etc. and do not all contain organic material, do not have thermal ageing and the ageing mechanism of irradiation, can satisfy the inside or high temperature on border of reactor pressure vessel, high pressure, high humidity and strong very harsh operational environment such as irradiation, satisfy 60 years working life to the connector satisfies 200 plugs.
Description
Technical Field
The utility model relates to a signal transmission's in nuclear power station reactor containment field, in particular to mineral insulated cable subassembly.
Background
In a nuclear power plant reactor scenario, a cable is generally required to transmit an electrical signal in a containment vessel of the nuclear power plant reactor, and since the environment in the containment vessel is harsh, the harsh environment of high temperature, high humidity, high pressure and high radiation needs to ensure that the cable has a high insulation characteristic and can resist all external influencing factors, the requirement on the cable is very strict at the same time.
The integrated design of the traditional mineral insulated cable subassembly that uses at present is mostly: the connector is insulated with PEEK or polyimide as an option. The mineral insulated cable is sealed through epoxy resin, organic conducting wires are required to be soldered with connector pins to complete switching, and then the mineral insulated cable is sealed through epoxy resin and glass fiber silicone rubber. However, since the organic material is introduced into the integration for transition sealing, the cable assembly has heat aging and radiation aging mechanisms as a whole, and the service life is usually about 10 years if calculated according to the environment in the reactor shell, which cannot reach the conventionally specified 60-year service life of the cable.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to introduce organic material in order to overcome prior art and carry out the switching sealed and easy ageing defect, provide a mineral insulation cable subassembly.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
a mineral-insulated cable assembly, characterized in that the mineral-insulated cable assembly comprises a cable, which cable is an inorganic mineral-insulated cable, the mineral-insulated cable assembly further comprising:
the connector group is positioned at one end of the two cables and is used for completing the sealing butt joint of the end parts of the two cables;
the corrugated pipes are sleeved on the peripheries of the cables and used for protecting the cables;
the connector adapter tail attaches, the connector adapter tail attaches and is located the connector with between the bellows, connect in the surface of connector group, with connector group with bellows fixed connection, the connector adapter tail attach be used for with connector group with the bellows is connected. The connector adapter tail may provide hermeticity and mechanical protection to the cable within and the adapter structure of the connector set.
Preferably, the cable is a twin or single core mineral insulated cable.
Preferably, the end of the cable is sleeved with a sleeve which is larger than the outer diameter of the cable, the core wire of the cable extends out of the sleeve, and glass powder is filled between the sleeve and the cable.
Preferably, the connector set includes a male connector set and a female connector set.
Preferably, the male connector set includes:
the male connector contact pin is fixedly connected with the end part of the core wire of the cable through brazing;
the male connector shell is sleeved outside the male connector contact pin;
the male head sintering sleeve is sleeved outside a core wire of the cable, and one end of the male head sintering sleeve is sleeved inside the shell of the male head connector;
the glass blank is sleeved inside the shell of the male connector, a plurality of holes are formed in the upper surface and the lower surface of the glass blank, and the male connector pins penetrate out of the holes.
Preferably, glass powder is filled and sintered among the male connector shell, the male sintered sleeve and the male connector pin.
Preferably, the female connector set includes:
the female connector jack is fixedly connected with the end part of the core wire of the cable through brazing;
the female connector shell is sleeved outside the female connector jack;
the female head sintering sleeve is sleeved outside a core wire of the cable, and one end of the female head sintering sleeve is sleeved inside the shell of the female head connector;
the glass blank is sleeved inside the shell of the female connector, a plurality of holes are formed in the upper surface and the lower surface of the glass blank, and the female connector jacks penetrate out of the holes.
The ceramic insulator is positioned on one side of the glass blank and fixedly connected with the shell of the female connector through brazing, a plurality of openings corresponding to the openings of the glass blank are formed in the ceramic insulator, and the jacks of the female connector penetrate out of the openings. The ceramic insulator is used for sealing, so that the hardness can reach higher standard, the insulating property is better, and the pressure resistance is higher at the same time.
Preferably, the ceramic insulator is provided with a metal coating on the inner surface of the open pore and the side wall of the outer surface of the ceramic insulator.
Preferably, the glass powder is filled and sintered between the female sintering sleeve and the female connector jack of the female connector housing.
Preferably, the connector adapter attachment includes a male connector attachment and a female connector attachment.
Preferably, the male connector tail is attached to the outside of the male sintered sleeve and fixedly connected with the male connector shell.
Preferably, the male connector tail is fixedly connected with the male connector housing by laser welding.
Preferably, the female connector tail is attached to the outside of the female sintered sleeve and fixedly connected with the female connector shell.
Preferably, the female connector tail is fixedly connected with the female connector housing by laser welding.
Preferably, the mineral insulated cable assembly further comprises a sealing penetration member, a plurality of openings are formed in the sealing penetration member, and the cable penetrates out of the openings of the sealing penetration member. The sealed penetration piece can play the effect of fixed cable, also can seal the space of cable junction simultaneously, reaches better in sealed effect.
Preferably, the sealing penetration piece is fixedly connected with the cable.
Preferably, the sealing penetration piece and the cable are fixedly connected through high-frequency soldering.
Preferably, the connector adapter tail is fixedly connected with the corrugated pipe through argon arc welding.
Preferably, the mineral insulated cable assembly further comprises a sealing flange, the sealing flange is sleeved outside the male connector group and the female connector group, and the sealing flange is used for screwing after the male connector group and the female connector group are fixed. The sealing gland can meet the requirements of high temperature resistance, high pressure resistance and high temperature steam sealing isolation during and after a reactor design benchmark accident.
Preferably, the mineral insulated cable assembly further comprises a sealing gasket, the sealing gasket is sleeved outside the ceramic insulator, and the sealing gasket is used for being matched with the sealing flange to realize sealing after the male connector group and the female connector group are fixed. The sealing gasket can achieve the effect of a sealing connection part through extrusion between the male connector group and the female connector group when the male connector group and the female connector group are assembled.
The utility model discloses an actively advance the effect and lie in: the utility model provides a mineral insulation cable subassembly adopts inorganic design, and cable, connector, switching tail in the subassembly attach etc. and do not all contain organic material, do not have thermal ageing and the ageing mechanism of irradiation, can satisfy the inside or high temperature on border of reactor pressure vessel, high pressure, high humidity and strong very harsh operational environment such as irradiation, satisfy 60 years working life, and the connector satisfies 200 plugs.
Drawings
Fig. 1 is a schematic view of a radial cross-section of a mineral insulated cable assembly according to the present invention.
Fig. 2 is a schematic structural view of a radial cross section of a male portion of a mineral insulated cable assembly according to the present invention.
Fig. 3 is a schematic view of a radial cross-section of a female portion of a mineral insulated cable assembly according to the present invention.
Fig. 4 is a schematic structural view of the end face of the male portion of the mineral insulated cable assembly of the present invention.
Fig. 5 is a schematic structural view of an end face of a female portion of a mineral insulated cable assembly according to the present invention.
Description of reference numerals:
cable 1
Male connector set 2
Male connector pin 21
Male connector housing 22
Male sintered sleeve 23
Female connector group 3
Female connector jack 31
Female connector housing 32
Female sintered bushing 33
Ceramic insulator 34
Glass blank 4
Glass powder 5
Male connector tail 6
Female head connector tail 7
Sealing through-piece 8
Corrugated pipe 9
Sealing gasket 10
Sealing gland 11
Detailed Description
The present invention will be more clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a mineral insulated cable assembly, it includes a plurality of cables 1, and this cable 1 adopts inorganic mineral insulation 2 core cables. The cable 1 in this embodiment is not limited to the inorganic mineral insulation 2-core cable, and other inorganic mineral insulation 1-core or multi-core cables may be used to meet the requirement of smaller bending radius and facilitate the branching of the mineral insulation cable components. Cutting the cable 1 by using a point type or line type laser machine, sleeving a stainless steel sleeve slightly larger than the outer diameter of the cable 1 at the end part of the cut cable 1, extending the end part of a core wire of the cable 1 out of the sleeve, and filling inorganic glass powder 5 in the sleeve for high-temperature sintering and sealing.
This mineral insulated cable subassembly still includes connector group, connector group includes a public first connector group 2 and a female first connector group 3, and public first connector group 2 and female first connector group 3 are used for connecting two the both ends of cable 1.
As shown in fig. 2 and 4, the male connector set 2 includes male connector pins 21, a male connector housing 22, a male sintered sleeve 23 and a glass blank 4. The male connector housing 22 and the male sintered bushing 23 are both made of 316L stainless steel. The male connector pins 21 and the end of the core wire of the cable 1 are fixedly connected by high-frequency soldering under a shielding gas. The male connector shell 22 is sleeved outside the male connector pins 21, the male sintered sleeve 23 is sleeved outside the core wire of the cable 1, and one end of the male sintered sleeve 23 is sleeved inside the male connector shell 22. The glass blank 4 is sleeved inside the male connector housing 22, and the surface of the glass blank 4 is provided with openings distributed according to the positions of core wires of the cable 1, namely male connector pins 21, and the male connector pins 21 penetrate through the openings.
When the glass blank 4 and the male connector pin 21 are assembled and fixed, the male connector pin 21, the glass blank 4, the male sintering sleeve 23 and the male connector shell 22 are assembled and fixed according to the relative positions, then the cavity formed after the fixation is filled with glass powder 5, and integrated high-temperature sintering sealing is carried out. After sintering, the male connector pin 21, the glass blank 4, the male sintered bushing 23 and the male connector housing 22 are bonded together by the solidification of the glass frit 5.
As shown in fig. 3 and 5, the female connector set 3 includes a female connector receptacle 31, a female connector housing 32, a female sintered sleeve 33, a glass blank 4 and a ceramic insulator 34. The female connector insertion hole 31 and the end of the core wire of the cable 1 need to be fixedly connected by high-frequency soldering under a shielding gas. The female connector shell 32 is sleeved outside the female connector jack 31, the female sintered sleeve 33 is sleeved outside a core wire of the cable 1, one end of the female sintered sleeve 33 is sleeved inside the female connector shell 32, the glass blank 4 is sleeved inside the female connector shell 32, the surface of the glass blank 4 is provided with an opening distributed according to the position of the core wire of the cable 1, namely the female connector jack 31, and the female connector jack 31 penetrates out of the opening.
The ceramic insulator 34 is used for fixing and sealing the female connector jack 31, is located on one side of the glass blank 4, and has openings distributed on the surface according to the positions of the core wires of the cable 1, namely the female connector jack 31, and the inner surface of the openings and the side wall of the outer surface of the ceramic insulator 34 need to be subjected to metal plating treatment. The ceramic insulator 34 is fixedly connected and sealed with the glass blank 4 by brazing, and then the female connector insertion hole 31 penetrates out of the opening on the surface of the ceramic insulator 34 to be fixedly sealed with the ceramic insulator 34 by brazing. By sealing with the ceramic insulator 34, the hardness can be made higher, the insulation is better, and the withstand voltage is also higher.
When the glass blank 4 and the female connector jack 31 are assembled and fixed, then the female connector jack 31, the female connector shell 32, the female sintered sleeve 33, the glass blank 4 and the ceramic insulator 34 are assembled and fixed according to the relative positions, then the cavity formed after the fixation is filled with the glass powder 5, and the integrated high-temperature sintering sealing is carried out. After sintering, the female connector jack 31, the female connector housing 32, the female sintering sleeve 33, and the glass blank 4 are bonded together by the solidification of the glass frit 5.
The mineral insulated cable assembly further comprises a connector adapter tailpiece made of a 316L stainless steel sleeve, the connector adapter tailpiece is positioned between the connector and the corrugated tube 9, and the connector adapter tailpiece comprises a male connector tailpiece 6 and a female connector tailpiece 7. The male connector tail 6 is sleeved outside the male sintered sleeve 23, and is fixedly connected and sealed with the male connector shell 22 and the corrugated pipe 9 through laser welding. The female connector tail 7 is sleeved outside the female sintered sleeve 33, and is fixedly connected and sealed with the female connector shell 32 and the corrugated pipe 9 through laser welding.
This mineral insulation cable subassembly still includes sealed penetration piece 8, is provided with a plurality of evenly distributed's trompil on the sealed penetration piece 8, and cable 1 wears out in sealed penetration piece 8's trompil, and through high frequency brazing fixed connection and sealed between sealed penetration piece 8 and the cable 1, after sealed penetration piece 8 and cable 1 fixed connection and sealed, the leakproofness is verified to the rethread helium leak hunting. The sealing penetration piece 8 can play a role in fixing the cable, and can also seal the space of the cable connection part, so that the sealing effect is better.
The mineral-insulated cable assembly further comprises a corrugated tube 9, the corrugated tube 9 being adapted to enclose the cable 1. The corrugated pipe 9 and the connector adapter coupling are fixedly connected through argon arc welding. The bellows 9 is made of stainless steel.
The mineral insulated cable assembly further includes a gasket 10, which is a stainless steel gasket. Other materials may be used to achieve a better sealing effect. The sealing gasket 10 is sleeved outside the ceramic insulator 34 and is arranged in a groove between the male sintered sleeve 23 and the male connector shell 22 for sealing after the male connector group 2 and the female connector group 3 are inserted and fixed. When the male connector group 2 and the female connector group 3 are butted, the sealing gasket 10 plays a role of sealing the joint of the male connector and the female connector through extrusion between the male connector group 2 and the female connector group 3.
The mineral insulated cable assembly further comprises a sealing flange 11 which is sleeved outside the joint of the male connector group 2 and the female connector group 3 after the male connector group 2 and the female connector group 3 are oppositely inserted and fixed, and when the sealing flange 11 is used for screwing the joint of the male connector group 2 and the female connector group 3, the sealing flange is matched with the extrusion sealing gasket 10 to deform, so that the sealing effect is further achieved. By using the sealing gland 11, the sealing isolation of high temperature, high pressure and high temperature steam can be met during and after a reactor design benchmark accident.
The mineral insulated cable assembly of the embodiment is not limited to be used in the field of signal transmission in the nuclear power plant reactor containment, and can be used in other similar environments with high temperature, high pressure, high humidity and high radiation.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (20)
1. A mineral-insulated cable assembly, characterized in that the mineral-insulated cable assembly comprises a cable, which cable is an inorganic mineral-insulated cable, the mineral-insulated cable assembly further comprising:
the connector group is positioned at one end of the two cables and is used for completing the sealing butt joint of the end parts of the two cables;
the corrugated pipes are sleeved on the peripheries of the cables and used for protecting the cables;
the connector switching tail attaches, the connector switching tail attaches and is located the connector with between the bellows, with the surface contact of connector group, with connector group with bellows fixed connection, the connector switching tail attach be used for with connector group with the bellows is connected.
2. The mineral-insulated cable assembly of claim 1, wherein the cable is a twin or single core mineral-insulated cable.
3. The mineral-insulated cable assembly of claim 2, wherein the cable has an end portion covered with a jacket that is larger than an outer diameter of the cable, the core of the cable extending from the jacket, and a space between the jacket and the cable filled with glass frit.
4. The mineral-insulated cable assembly of claim 1, wherein the connector set includes a male connector set and a female connector set.
5. The mineral-insulated cable assembly of claim 4, wherein the male connector set includes:
the male connector contact pin is fixedly connected with the end part of the core wire of the cable through brazing;
the male connector shell is sleeved outside the male connector contact pin;
the male head sintering sleeve is sleeved outside a core wire of the cable, and one end of the male head sintering sleeve is sleeved inside the shell of the male head connector;
the glass blank is sleeved inside the shell of the male connector, a plurality of holes are formed in the upper surface and the lower surface of the glass blank, and the male connector pins penetrate out of the holes.
6. The mineral-insulated cable assembly of claim 5, wherein glass frit is filled between the male connector housing, the male sintered sleeve, and the male connector pin.
7. The mineral-insulated cable assembly of claim 5, wherein the female connector set includes:
the female connector jack is fixedly connected with the end part of the core wire of the cable through brazing;
the female connector shell is sleeved outside the female connector jack;
the female head sintering sleeve is sleeved outside a core wire of the cable, and one end of the female head sintering sleeve is sleeved inside the shell of the female head connector;
the glass blank is sleeved in the shell of the female connector, the upper surface and the lower surface of the glass blank are provided with a plurality of holes, and the female connector jacks penetrate out of the holes;
the ceramic insulator is positioned on one side of the glass blank and fixedly connected with the shell of the female connector through brazing, a plurality of openings corresponding to the openings of the glass blank are formed in the ceramic insulator, and the jacks of the female connector penetrate out of the openings.
8. The mineral-insulated cable assembly of claim 7, wherein the ceramic insulator has a metallic coating disposed on the inner surface of the bore and on the outer surface of the ceramic insulator.
9. The mineral-insulated cable assembly of claim 7, wherein the female connector housing, the female sintered sleeve and the female connector receptacle are filled with sintered glass frit.
10. The mineral-insulated cable assembly of claim 7, wherein the connector adapter attachment includes a male connector attachment and a female connector attachment.
11. The mineral-insulated cable assembly of claim 10, wherein the male connector tail is attached to an exterior of the male sintered bushing and fixedly attached to the male connector housing.
12. The mineral-insulated cable assembly of claim 11, wherein the male connector tail is fixedly attached to the male connector housing by laser welding.
13. The mineral-insulated cable assembly of claim 10, wherein the female connector tail is attached to an exterior of the female sintered bushing and fixedly attached to the female connector housing.
14. The mineral-insulated cable assembly of claim 13, wherein the female connector tail is fixedly attached to the female connector housing by laser welding.
15. The mineral-insulated cable assembly of claim 1, further comprising a seal penetration having openings, wherein the cable extends through the openings of the seal penetration.
16. The mineral-insulated cable assembly of claim 15, wherein the seal penetration is fixedly attached to the cable.
17. The mineral-insulated electrical cable assembly of claim 16, wherein the seal penetration and the electrical cable are fixedly connected by high frequency brazing.
18. The mineral-insulated cable assembly of claim 1, wherein the connector adapter tail is fixedly attached to the corrugated tubing by argon arc welding.
19. The mineral-insulated cable assembly of claim 7, further comprising a sealing flange, the sealing flange being disposed about an exterior of the set of male and female connectors, the sealing flange being adapted to be tightened after the set of male and female connectors are secured.
20. The mineral-insulated cable assembly of claim 19, further comprising a gasket disposed about an exterior of the ceramic insulator, the gasket configured to engage the sealing flange to provide a seal after the male connector set and the female connector set are secured together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822150229.XU CN209823032U (en) | 2018-12-19 | 2018-12-19 | Mineral insulated cable assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822150229.XU CN209823032U (en) | 2018-12-19 | 2018-12-19 | Mineral insulated cable assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209823032U true CN209823032U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822150229.XU Active CN209823032U (en) | 2018-12-19 | 2018-12-19 | Mineral insulated cable assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209823032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586119A (en) * | 2018-12-19 | 2019-04-05 | 国核自仪***工程有限公司 | Mineral insulated cable component |
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2018
- 2018-12-19 CN CN201822150229.XU patent/CN209823032U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586119A (en) * | 2018-12-19 | 2019-04-05 | 国核自仪***工程有限公司 | Mineral insulated cable component |
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