CN203415286U - Nuclear-power low-voltage-cable straight-through type middle connection structure - Google Patents
Nuclear-power low-voltage-cable straight-through type middle connection structure Download PDFInfo
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- CN203415286U CN203415286U CN201320406953.9U CN201320406953U CN203415286U CN 203415286 U CN203415286 U CN 203415286U CN 201320406953 U CN201320406953 U CN 201320406953U CN 203415286 U CN203415286 U CN 203415286U
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Abstract
The utility model discloses a nuclear-power low-voltage-cable straight-through type middle connection structure. The structure comprises conductive connecting pipes, wire core insulation bushes, a shielding connection line and sheath insulating tubes, wherein the conductive connecting pipes are pasted and sleeved on wire core conductors of two cables which form butt joint; the wire core insulation bushes simultaneously wrap the conductive connecting pipes and wire core insulating layers of the two cables which form butt joint; the shielding connection line is connected to shielding layers of the two cables respectively; the sheath insulating tubes simultaneously wrap sheathes of the two cables which form the butt joint. In the middle connection structure provided in the utility model, the conductive connecting pipes conduct the wire core conductors of the two cables; the wire core insulation bushes wrap the conductive connecting pipes and wire core insulating layers of the two cables; the shielding connection line is connected to the shielding layers of the two cables; an outermost layer of a cable connection portion is sealed and protected by the sheath insulating tubes. Therefore, normal conduction between the two cables is guaranteed; simultaneously, the two cables are insulated from an outside world and are connected and fixed firmly so that middle connection of the nuclear-power low-voltage cable.
Description
Technical field
The utility model relates to technical field of cable connection, particularly a kind of nuclear power low-voltage cable through type intermediate connection structure.
Background technology
Nuclear energy power generation is generally applied in the whole world, and at present nuclear power technology has developed into third generation technology, and generation Ⅲ nuclear power technology has that design is terse, easy operating, safe feature.
In other nuclear power technology before generation Ⅲ nuclear power technology, in nuclear power shell, between equipment, be by a complete cable, to realize terminal to connect, the two ends of a cable are directly connected with the terminal of equipment respectively, and in generation Ⅲ nuclear power technology, terminal connection method cannot be suitable for, need a plurality of cable series connections to get up to use, such as, to between two cables, couple together, then by the two ends of the cable being together in series and equipment connection, this form being connected in series connects in the middle of being called cable.And domestic generation Ⅲ nuclear power technology there is no the structure that realizes the middle connection of cable at present.
In sum, how realizing the middle of nuclear power shell inner cable and connect, is those skilled in the art's problem demanding prompt solutions.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of nuclear power low-pressure direct general formula intermediate connection structure, to realize the middle of nuclear power shell inner cable, connects.
For achieving the above object, the utility model provides following technical scheme:
A low-voltage cable through type intermediate connection structure, comprising:
Conduction tube connector, described conduction tube connector is adjacent on the core conductor that is sheathed on two cables that connect;
Core insulating sleeve, described core insulating sleeve be coated on described conduction tube connector simultaneously and the core insulating barrier of two described cables connecting on;
Shielding connecting line, the two ends of described shielding connecting line are connected on the screen of two described cables;
Jacket insulation pipe, described jacket insulation pipe is coated on the sheath of two described cables that connect simultaneously.
Preferably, in above-mentioned nuclear power low-voltage cable through type intermediate connection structure, between the position that described jacket insulation pipe contacts with the sheath of described cable, be also provided with the sealing joint strip of resistance to irradiation.
Preferably, in above-mentioned nuclear power low-voltage cable through type intermediate connection structure, the inner side of described core insulating sleeve is coated with nuclear power PUR.
Preferably, in above-mentioned nuclear power low-voltage cable through type intermediate connection structure, also comprise two constant force springs on the screen that is sheathed on respectively two described cables, the two ends of described shielding connecting line are fixed on described screen by described constant force spring.
Preferably, in above-mentioned nuclear power low-voltage cable through type intermediate connection structure, two described core conductors that connect equal in length, and the length of every described core conductor equals described conduction tube connector length half.
Preferably, in above-mentioned nuclear power low-voltage cable through type intermediate connection structure, the core conductor of two described cables is on same straight line.
Compared with prior art, the beneficial effects of the utility model are:
In the nuclear power low-voltage cable through type intermediate connection structure that the utility model provides; conduction tube connector is by the core conductor conducting of the cable of two docking; core insulating sleeve is coated the core insulating barrier of two cables that conduct electricity tube connector and connect in the lump; shielding connecting line connects the screen of two cables; the outermost layer of cable connecting part position is protected by the jacket insulation seal of tube; so both guaranteed the normally between two cables; make two cables and external insulation simultaneously; and be connected and fixed firmly, thereby realized the middle of nuclear power low-voltage cable, connect.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or scheme of the prior art, to be briefly described describing the accompanying drawing of required use in embodiment or prior art below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those skilled in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of nuclear power low-voltage cable through type intermediate connection structure schematic diagram that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the partial enlarged drawing of the core connecting portion in Fig. 1.
In above-mentioned Fig. 1 and Fig. 2, cable 1, core conductor 2, conduction tube connector 3, insulated wire cores sleeve pipe 4, core insulating barrier 5, screen 6, jacket insulation pipe 7, shielding connecting line 9, constant force spring 10.
Embodiment
The utility model provides a kind of nuclear power low-voltage cable through type intermediate connection structure, has realized the middle of low-voltage cable in nuclear power shell and has connected.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Based on embodiment of the present utility model, all other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belong to the scope that the utility model is protected.
Please refer to Fig. 1 and Fig. 2, a kind of nuclear power low-voltage cable through type intermediate connection structure schematic diagram that Fig. 1 provides for the utility model embodiment; Fig. 2 is the partial enlarged drawing of the core connecting portion in Fig. 1.
Cable 1 is positioned at the containment of nuclear power station, cable 1 generally comprises a plurality of cores, screen 6 and sheath from the inside to the outside successively, each core comprises core conductor 2 and core insulating barrier 5, cable 1 in Fig. 1 is usingd two cores as example, certainly, can also comprise a lot of roots, cable can transmit low pressure, medium-pressure or high pressure, and the low pressure of below take describes as example.
The utility model embodiment provides a kind of nuclear power low-voltage cable through type intermediate connection structure, hereinafter to be referred as cable intermediate connection structure, being applied to the middle of low-voltage cable in nuclear power shell connects, two cables, 1 serial connection of take is example, and cable intermediate connection structure comprises conduction tube connector 3, core insulating sleeve 4, shielding connecting line 9 and jacket insulation pipe 7; Wherein, conduction tube connector 3 is adjacent on the core conductor 2 that is sheathed on two cables 1 that connect, thereby the core conductor 2 of two cables 1 is linked together, and realizes conducting; Core insulating sleeve 4 is coated the core insulating barrier 5 of two cables 1 that conduct electricity tube connector 3 and connect in the lump, thereby core conductor 2 and external insulation are come, and prevents 2 electric leakages of core conductor; The two ends of shielding connecting line 9 are connected on the screen of two cables 16, by 6 conductings of the screen of two cables 1, make the conducting telotism of cable 1; Jacket insulation pipe 7 is coated on the sheath of two cables 1 that connect simultaneously, by jacket insulation pipe 7, two cables 1 is connected and the coupling part of cable 1 is all protected; The benefit that jacket insulation pipe 7 is set is under the condition of ground floor insulation protection of online core insulation sleeve pipe 4; increase second layer insulation protection, further prevented the electric leakage of cable 1 connecting portion, simultaneously; jacket insulation pipe 7 has the effect that is fixedly connected with two cables 1, cable 1 is connected more firm.
Above-mentioned cable intermediate connection structure has not only been realized conducting between two cables 1 and has fixedly been connected in series, and keeps insulation with the external world, has guaranteed fail safe, thus realized low-voltage cable in nuclear power shell in the middle of connect.
Further; in the present embodiment; at jacket insulation pipe 7, be also provided with the sealing joint strip of resistance to irradiation 8 with the position that two cable 1 sheaths are connected; by the sealing joint strip of resistance to irradiation 8 by jacket insulation pipe 7 and two cable 1 sheath adhering and sealings; like this; more be conducive to insulation and seal protection cable 1 connecting portion, strengthened the radiation resistance connecting in the middle of cable simultaneously.
In order further to improve the insulation property of cable intermediate connection structure, prevent from connecting generation partial discharge in the middle of cable, thereby normal use of cable 1 brought to adverse effect, in the utility model embodiment, the inner side of online core insulation sleeve pipe 4 is coated with nuclear power PUR, like this when hookup wire core insulation sleeve pipe 4, heater wire core insulation sleeve pipe 4, the fusing of nuclear power PUR, make not have space between core insulating sleeve 4 and core conductor 2, thereby further prevented the generation of the partial discharge that connects in the middle of cable.
Can find out, cable intermediate connection structure can comprise conduction tube connector 3, core insulating sleeve 4, shielding connecting line 9, the sealing joint strip of resistance to irradiation 8 and jacket insulation pipe 7 from the inside to the outside successively; By these structures, realized low-voltage cable in the containment of nuclear power station in the middle of connect, by core insulating sleeve 4 and jacket insulation pipe 7, form two-layer protection.
As optimization, in the present embodiment, on the screen 6 of two cables 1, be all arranged with a constant force spring 10, two constant force springs 10 are fixed on the two ends of shielding connecting line 9 on screen 6 respectively, utilize the elastic force of constant force spring 10 will shield connecting line 9 bandings on screen 6, use constant force spring 10 to install fixing more convenient, and firmly; Certainly, can also adopt the mode fixed mask connecting line 9 etc. that shielding connecting line 9 is directly wrapped on screen 6 or is adopted welding.
In the utility model embodiment, the core conductor 2 of two cables 1 that connect equal in length, and the length of every core conductor 2 equals to conduct electricity half of tube connector 3 length, the tube connector 3 that conducts electricity is all coated the core conductor 2 of two docking just, certainly, the length of two core conductors 2 can also be unequal, and the length sum of two core conductors 2 is less than the length of conduction tube connector 3.
More preferably, the core conductor 2 of two cables 1 that connect is located along the same line, and convenient conduction tube connector 3 is sheathed on two core conductors 2; Form the intermediate connection structure of through type.
Be below the installation process of a kind of concrete cable intermediate connection structure that provides of the utility model embodiment, step comprises:
Step a, to straight cable 1: 1 pair, two cables that connect are straight, and cable 1 removing surface is clean.
Step b, exploitation cable 1 outer jacket: the two ends that connect of two cables 1 are measured to certain length separately, generally get 110mm, peel off outer jacket, only retain the long screen 6 of core insulating barrier 5 and 20mm.
Step c, sheathed jacket insulation pipe 7: jacket insulation pipe 7 is enclosed within on a cable 1, then core insulating sleeve 4 is enclosed within on the core of cable 1, standby.
Steps d, crimping conduction tube connector 3: half of length that measures conduction tube connector 3, with this, be of a size of standard, from the link of core, start to peel off core insulating barrier 5, core conductor 2 is exposed, then conduction tube connector 3 is enclosed within on the core conductor 2 of two docking, by Press Plier crimping conductor connecting tube 3, conductor connecting tube 3 is communicated with core conductor 2.
Step e, static line core insulation sleeve pipe 4: move and be enclosed within advance the core insulating sleeve 4 on core, make conductor connecting tube 3 be contained in core insulating sleeve 4 inside, heater wire core insulation sleeve pipe 4 afterwards, be coated in the nuclear power PUR fusing of core insulating sleeve 4 inside, thereby be bonded on the core insulating barrier 5 at conductor connecting tube 3 and two ends, there is not space in core insulating sleeve 4 inside, the sealed insulation of having realized core connects.
Step f, shielding connecting line 9 is installed: the two ends of shielding connecting line 9 are connected with the screen 6 of two cables 1 respectively, by constant force spring 10 by the two ends banding that shields connecting line 9 on screen 6.
Step g, be wound around the sealing joint strip of resistance to irradiation 8: on two sheaths of the close stripping position of two cables 1, be wound around respectively a sealing joint strip of resistance to irradiation 8.
Step h, fixed sheath insulated tube 7: after the core of cable 1 is regular, move and be enclosed within advance the jacket insulation pipe 7 on cable 1 sheath, make the two ends of jacket insulation pipe 7 bonding with two sheaths that are wound with the sealing joint strip of resistance to irradiation 8 respectively, heating, is connected and fixed two cables 1 by jacket insulation pipe 7 herein.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a nuclear power low-voltage cable through type intermediate connection structure, is characterized in that, comprising:
Conduction tube connector (3), described conduction tube connector (3) is adjacent on the core conductor (2) that is sheathed on two cables (1) that connect;
Core insulating sleeve (4), described core insulating sleeve (4) be coated on described conduction tube connector (3) simultaneously and the core insulating barrier (5) of two described cables (1) of connecting on;
Shielding connecting line (9), the two ends of described shielding connecting line (9) are connected on the screen (6) of two described cables (1);
Jacket insulation pipe (7), described jacket insulation pipe (7) is coated on the sheath of two the described cables (1) that connect simultaneously.
2. nuclear power low-voltage cable through type intermediate connection structure according to claim 1, is characterized in that, between the position that described jacket insulation pipe (7) contacts with the sheath of described cable (1), is also provided with the sealing joint strip of resistance to irradiation (8).
3. according to the nuclear power low-voltage cable through type intermediate connection structure described in claim 1-2 any one, it is characterized in that, the inner side of described core insulating sleeve (4) is coated with nuclear power PUR.
4. nuclear power low-voltage cable through type intermediate connection structure according to claim 1, it is characterized in that, also comprise two constant force springs (10) on the screen (6) that is sheathed on respectively two described cables (1), the two ends of described shielding connecting line (9) are fixed on described screen (6) by described constant force spring (10).
5. nuclear power low-voltage cable through type intermediate connection structure according to claim 1, it is characterized in that, the two described core conductors (2) that connect equal in length, and the length of every described core conductor (2) equals described conduction tube connector (3) length half.
6. nuclear power low-voltage cable through type intermediate connection structure according to claim 1, is characterized in that, the core conductor (2) of two described cables (1) is located along the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320406953.9U CN203415286U (en) | 2013-07-08 | 2013-07-08 | Nuclear-power low-voltage-cable straight-through type middle connection structure |
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| CN201320406953.9U CN203415286U (en) | 2013-07-08 | 2013-07-08 | Nuclear-power low-voltage-cable straight-through type middle connection structure |
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| CN203415286U true CN203415286U (en) | 2014-01-29 |
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| CN201320406953.9U Expired - Lifetime CN203415286U (en) | 2013-07-08 | 2013-07-08 | Nuclear-power low-voltage-cable straight-through type middle connection structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994359A (en) * | 2017-12-22 | 2018-05-04 | 深圳市沃尔核材股份有限公司 | The adapter assembly and connector connecting method of built-in fiber cable |
| CN109616993A (en) * | 2018-12-20 | 2019-04-12 | 科莱斯（天津）电热科技有限公司 | A kind of cable connecting arrangement and its installation method of separately installed formula |
| CN117831845A (en) * | 2024-01-13 | 2024-04-05 | 江苏东方电缆材料有限公司 | Double oil-resistant flame-retardant cable for locomotive |
-
2013
- 2013-07-08 CN CN201320406953.9U patent/CN203415286U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994359A (en) * | 2017-12-22 | 2018-05-04 | 深圳市沃尔核材股份有限公司 | The adapter assembly and connector connecting method of built-in fiber cable |
| CN107994359B (en) * | 2017-12-22 | 2024-02-02 | 深圳市沃尔核材股份有限公司 | Joint assembly of built-in optical fiber cable and joint connection method |
| CN109616993A (en) * | 2018-12-20 | 2019-04-12 | 科莱斯（天津）电热科技有限公司 | A kind of cable connecting arrangement and its installation method of separately installed formula |
| CN117831845A (en) * | 2024-01-13 | 2024-04-05 | 江苏东方电缆材料有限公司 | Double oil-resistant flame-retardant cable for locomotive |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160930 Address after: 130000 No. 1666 Air North Street, Gaoxin North Zone, Jilin, Changchun Patentee after: CHANGCHUN KINWA HIGH TECHNOLOGY CO.,LTD. Address before: 130000 Torch Road 286, hi tech Development Zone, Jilin, Changchun Patentee before: CHINA-KINWA HIGH TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |