CN202816445U - High temperature resistant cable - Google Patents
High temperature resistant cable Download PDFInfo
- Publication number
- CN202816445U CN202816445U CN2012204908515U CN201220490851U CN202816445U CN 202816445 U CN202816445 U CN 202816445U CN 2012204908515 U CN2012204908515 U CN 2012204908515U CN 201220490851 U CN201220490851 U CN 201220490851U CN 202816445 U CN202816445 U CN 202816445U
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- CN
- China
- Prior art keywords
- cable
- earthenware
- high temperature
- cutting ferrule
- metal tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model provides a high temperature resistant cable which can bear the temperature higher than 430 DEG C, so the high temperature and high moisture environment demand under the serious accident condition of the third-generation nuclear power station in China is satisfied. The high temperature resistant cable includes a cable, sealing nuts, ceramic rings, clamp sleeves, ceramic tubes, butt joints and a metal housing. The periphery of the cable is coaxially sleeved with multiple ceramic tubes for insulation and the ceramic tubes are connected head-to-tail in order. The periphery of each ceramic tube is coaxially sleeved with a metal tube to form a metal housing protective sleeve. For the joints of the cable, the mode in which the clamp sleeves cooperate with the ceramic rings is adopted, so the overall high temperature resistance of the cable is guaranteed and the high temperature environment demand is satisfied at the same time. The circular grooves on the metal tubes and the ceramic tubes can further improve the sealing performance and prevent the high temperature steam from entering into the ceramic rings to damage the cable.
Description
Technical field
Utility model relates to a kind of cable, is specifically related to a kind of high temperature-resistant cable.
Background technology
At present the cable of China's used in nuclear power station mainly is divided into two kinds, a kind ofly be the rubber cable of domestic production, and its maximum operation (service) temperature is 125 to spend.Another kind is the mineral insulated cable from foreign import, and namely cable center is that copper rod, employing magnesia powder are that megohmite insulant, shell employing stainless steel are protective sleeve.This cable can bear the above high temperature of 500 degree, but the joint sealing of cable part then the highest bearing temperature be generally 250 degree.China is adopting the nuclear power station that third generation technology is built at present, in case generation serious accident, more than 300 ℃, two kinds of cables in the past all can not satisfy China generation Ⅲ nuclear power station about the instructions for use under the serious accident condition to ambient temperature in the containment up to several.
Summary of the invention
In view of this, the utility model provides a kind of high temperature-resistant cable, and this whole cable can be born the above high temperature of 430 degree, satisfies China generation Ⅲ nuclear power station about the instructions for use under the serious accident condition.
High temperature-resistant cable of the present utility model, comprise cable, sealing nut, ceramic ring, cutting ferrule, earthenware, banjo fixing butt jointing and metal shell, at the excircle of cable successively two above earthenwares of coaxial package, described earthenware joins end to end, and the earthenware of end is all stretched out at the two ends of cable behind the suit.Metal tube of excircle coaxial package at each earthenware.The inner surface of metal tube and the intimate of earthenware are fitted, and the metal tube that matches is all stretched out at the two ends of each earthenware.Two ends at described metal tube excircle are processed with screw thread, link to each other by banjo fixing butt jointing between two adjacent metal tubes.
The part of stretching out earthenware at two ends, the cable left and right sides is set with cutting ferrule, and described cutting ferrule is olive shape, and an end of cutting ferrule links to each other with the earthenware of end, and the other end links to each other with stair-stepping ceramic ring, and ceramic ring is stretched out in the end of cable.With earthenware that cutting ferrule links to each other on, the junction of itself and cutting ferrule is processed with the groove that is complementary with the cutting ferrule profile.On ceramic ring, the junction of itself and cutting ferrule is processed with the groove that is complementary with the cutting ferrule profile.
Described ceramic ring and connecting by sealing nut between the adjacent metal tube with it.
Correspondence position at each metal tube and earthenware excircle all is processed with one or more annular groove.Beneficial effect:
(1) cable of the present utility model adopts resistant to elevated temperatures ceramic ring insulation; it is protective sleeve that shell adopts metal tube; and in the mode that the blank area of cable adopts cutting ferrule and ceramic ring to match, guarantee that the whole bearing temperature of cable reaches more than 430 degree, satisfy the hot environment requirement.
(2) adopt cutting ferrule and ceramic ring to guarantee simultaneously sealing resistant to elevated temperatures, prevent that high-temperature vapor from entering, make under the environment of high humidity of cable and use safely.
(3) annular groove of metal tube and earthenware excircle can further improve sealing property, prevents from that high-temperature vapor from entering cable to be caused damage in the ceramic ring, and this groove can be realized the location to metal tube and earthenware simultaneously, prevents that it from moving axially.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1-cable, 2-sealing nut, 3-ceramic ring, 4-cutting ferrule, 5-metal tube, 6-earthenware, 7-banjo fixing butt jointing.
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, the utility model is described in detail.
Present embodiment provides a kind of high temperature-resistant cable, and this cable can bear the above high temperature of 430 degree, this cable is used in the igniter of nuclear power station, and the guarantee point firearm can be realized igniting under hot conditions.
The high temperature-resistant cable that present embodiment provides comprises cable 1, sealing nut 2, ceramic ring 3, cutting ferrule 4, earthenware 6, banjo fixing butt jointing 7 and metal shell.The earthenware 6 that connects at a plurality of head and the tail of the excircle of cable 1 successively coaxial package.At metal tube 5 of excircle coaxial package of each earthenware 6, form metal shell.The intimate of the inner surface of metal tube 5 and earthenware 6 is fitted, and the length of metal tube 5 is less than the length of earthenware 6, and namely the metal tube 5 that matches is all stretched out at the two ends of each earthenware 6.Two ends at described metal tube 5 excircles are processed with screw thread, link to each other by banjo fixing butt jointing 7 between two adjacent metal tubes 5, and two parts of banjo fixing butt jointing 7 are installed on two adjacent metal tubes 5 by screw thread respectively.
The part of stretching out earthenware 6 at two ends, cable 1 left and right sides is set with cutting ferrule 4, and described cutting ferrule 4 is olive shape, and an end of cutting ferrule 4 links to each other with the earthenware 6 of end, and the other end links to each other with stair-stepping ceramic ring 3, and ceramic ring 3 is stretched out in the end of cable 1.With earthenware 6 that cutting ferrule 4 links to each other on, the junction of itself and cutting ferrule 4 is processed with the groove that is complementary with cutting ferrule 4 profiles.On ceramic ring 3, the junction of itself and cutting ferrule 4 is processed with the groove that is complementary with cutting ferrule 4 profiles, to guarantee the reliability of sealing.Described ceramic ring 3 and connecting by sealing nut 2 between the adjacent metal tube 5 with it.
In order to guarantee sealing, prevent that high-temperature vapor from entering that ceramic ring 3 is interior to cause damage to cable 1, all be processed with two annular grooves at the correspondence position of metal tube 5 and earthenware 6 excircles.
In sum, more than be preferred embodiment of the present utility model only, be not be used to limiting protection range of the present utility model.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (2)
1. high temperature-resistant cable, comprise cable (1), it is characterized in that, further comprise sealing nut (2), ceramic ring (3), cutting ferrule (4), earthenware (6), banjo fixing butt jointing (7) and metal shell, at the excircle of cable (1) successively two above earthenwares of coaxial package (6), described earthenware (6) joins end to end; Metal tube of excircle coaxial package (5) at each earthenware (6); The intimate of the inner surface of metal tube (5) and earthenware (6) is fitted, and the metal tube (5) that matches is all stretched out at the two ends of each earthenware (6); Two ends at described metal tube (5) excircle are processed with screw thread, link to each other by banjo fixing butt jointing (7) between two adjacent metal tubes (5);
The part of stretching out earthenware (6) at cable (1) two ends, the left and right sides is set with cutting ferrule (4), described cutting ferrule (4) is olive shape, one section of cutting ferrule (4) links to each other with the earthenware (6) of end, the other end links to each other with stair-stepping ceramic ring (3), and ceramic ring (3) is stretched out in the end of cable (1); With earthenware (6) that cutting ferrule (4) links to each other on, the junction of itself and cutting ferrule (4) is processed with the groove that is complementary with cutting ferrule (4) profile, on ceramic ring (3), the junction of itself and cutting ferrule (4) is processed with the groove that is complementary with cutting ferrule (4) profile, described ceramic ring (3) and connecting by sealing nut (2) between the adjacent metal tube (5) with it.
2. a kind of high temperature-resistant cable as claimed in claim 1 is characterized in that, is processed with one or more annular groove at the correspondence position of each metal tube (5) and earthenware (6) excircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204908515U CN202816445U (en) | 2012-09-25 | 2012-09-25 | High temperature resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204908515U CN202816445U (en) | 2012-09-25 | 2012-09-25 | High temperature resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816445U true CN202816445U (en) | 2013-03-20 |
Family
ID=47875290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204908515U Expired - Lifetime CN202816445U (en) | 2012-09-25 | 2012-09-25 | High temperature resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816445U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425071A (en) * | 2013-09-08 | 2015-03-18 | 赵彦杰 | Fireproof wire sleeve |
| CN109543471A (en) * | 2018-11-29 | 2019-03-29 | 国电南瑞科技股份有限公司 | Energy-storage battery data record protective device |
| CN110767346A (en) * | 2019-10-31 | 2020-02-07 | 宁波奥崎仪表成套设备有限公司 | Severe accident cable of nuclear power station and cable joint used in cooperation with serious accident cable |
-
2012
- 2012-09-25 CN CN2012204908515U patent/CN202816445U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425071A (en) * | 2013-09-08 | 2015-03-18 | 赵彦杰 | Fireproof wire sleeve |
| CN109543471A (en) * | 2018-11-29 | 2019-03-29 | 国电南瑞科技股份有限公司 | Energy-storage battery data record protective device |
| CN110767346A (en) * | 2019-10-31 | 2020-02-07 | 宁波奥崎仪表成套设备有限公司 | Severe accident cable of nuclear power station and cable joint used in cooperation with serious accident cable |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |