CN104967086A - Integral high-voltage-cable anti-explosion joint box - Google Patents
Integral high-voltage-cable anti-explosion joint box Download PDFInfo
- Publication number
- CN104967086A CN104967086A CN201510418834.9A CN201510418834A CN104967086A CN 104967086 A CN104967086 A CN 104967086A CN 201510418834 A CN201510418834 A CN 201510418834A CN 104967086 A CN104967086 A CN 104967086A
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- explosion
- cable
- proof
- joint
- housing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
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- Cable Accessories (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention relates to an integral high-voltage-cable anti-explosion joint box used for protecting safety of a high voltage cable joint in an underground cable channel. The anti-explosion joint box comprises a cable support, a shell which is arranged on the cable support and forms one body and an anti-explosion fire extinguishing component arranged in a central-section anti-explosion chamber of the shell. The shell is in a shuttle-shape symmetrical structure. Two ends are provided with cable holes. The cable holes are provided with sealing components. A cable joint is arranged in the central-section anti-explosion chamber. The anti-explosion fire extinguishing component is connected to the cable joint. The shell is provided with a plurality of energy leakage hole guide pipes connected to the central-section anti-explosion chamber. Other spaces in the central-section anti-explosion chamber are filled with a fireproof thermal-insulation flame-retardant material. Compared to the prior art, the joint box possesses the advantages that moisture-proof, explosion-proof and fireproof performance is possessed; the joint box is safe and reliable; the structure is simple; cost is low and so on.
Description
Technical field
The present invention relates to electrical safety field, especially relate to a kind of Integral high-pressure cable explosion-proof connector box.
Background technology
As everyone knows, cable intermediate joint is the weakest link of cable.Our electric power system, power plant, nuclear power station, petrochemical industry etc. industry inevitably uses cable intermediate joint in the process using cable, especially heavy in section cable is calculated in units of dish, heavy in section cable one coils about 500 meters, substantially be every about 500 meters by this measuring and calculating and will do a cable intermediate joint, if several cables discharge in the lump, and as can be seen here more than cable intermediate joint, exactly increase the security of operation hidden danger of cable.Although this drawback is known very well in electric power system, we know very well the height of the cost of 110kV and 220kV cable.Distribution network transform inherently in order to beautify city look and feel, improve the safe operation quality of electrical network.Avoid human or animal because contacting exposed live part or electric leakage initiation human casualty accident.Each city with having under 110kV and 220kV high voltage overhead lines every year from now on, cable laying ditch and cable (satisfying) pipeline.So cable in the future in cable trough, cable tunnel and cable intermediate joint can get more and more, and cable intermediate joint just as if " not timing bomb " the same potential safety hazard.
The HV cable accessories 110kV that electric power system uses at present and 220kV cable intermediate head accessory roughly divide two kinds, Yi Zhongshi: domestic high voltage power cable annex.Another kind is: import or joint high voltage power cable annex, and cable intermediate joint has an accident, majority has following several situation:
1, foreign material stacked by cable tunnel, and on cable or cable bearer, dust stratification is blocked up, and cable tunnel has fuel gas flammable liquid leakage etc. to ignite through high temperature or naked light, and cable fire or blast occur;
2, cable and heat distribution pipeline hypotelorism or the long-term overload of cable, the too high insulating material that makes of temperature is aging, causes decreasing insulating, punctures and ignite;
3, the overcoat of cable is damaged when cable laying or cable insulation is in operation and is subject to the insulation breakdown that mechanical damage causes the alternate and outer interlayer of cable;
4, the eighties and the nineties, when the oil compression cable of use lays, vertical parallax is comparatively large, drops down oil or cable end oil impregnate phenomenon, causes the insulating oil of high-order cut cable to run off, and thermal resistance increases insulation coking and punctures on fire;
5, cable intermediate joint crimping is not tight, and not prison welding, is oxidized in operation; The megohmite insulant dosage injecting cable intermediate joint box is undesirable, or has pore in box during perfusion; Cable box poor sealing or impaired crackle immerse moisture, make insulation breakdown, blast on fire;
6, cable end surface wetting or contamination, cable end casing collapse and lead-out wire phase spacing is too small etc. causes flashover on fire;
7, main insulating layer is injured in electric cable accessories work progress.
Summary of the invention
Object of the present invention is exactly provide a kind of protection against the tide, explosion-proof, fire prevention, the Integral high-pressure cable explosion-proof connector box that safe and reliable, structure is simple, cost is low to overcome defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
A kind of Integral high-pressure cable explosion-proof connector box, in order to the safety of the high-voltage cable joint in cable passage under protecting field, this Explosion proof joint box comprises cable bearer, be arranged on integrated housing on cable bearer and be arranged on the explosion-proof fire-extinguishing assembly of housing central section explosion-proof chamber inside, described housing is shuttle-type symmetrical structure, cable aperture is offered at two ends, described cable aperture place is provided with seal, described explosion-proof chamber inside, middle part is also provided with cable joint, described explosion-proof fire-extinguishing assembly is connected with cable joint, described housing is also provided with multiple be communicated with middle part explosion-proof chamber let out can hole guide pipe, described middle part explosion-proof chamber its complementary space inner all fills fire-proof and thermal-insulation fire proofing.
Described explosion-proof fire-extinguishing assembly comprises the induction wire harness being set in cable joint two ends and the flame proof fire extinguisher be connected with induction wire harness, and described flame proof fire extinguisher is provided with multiple, is separately positioned on the two ends of middle part explosion-proof chamber.
The inwall of described middle part explosion-proof chamber is provided with buffering flame-retardant layer and the auxiliary material of fire prevention.
Described letting out can be communicated with middle part explosion-proof chamber in hole by being arranged on letting out on housing by hole guide pipe, and described letting out can the angle between hole guide pipe and housing be 45-90 degree.
Described outside is also arranged with explosion-proof stainless steel coil, and described explosion-proof stainless steel coil is fixed by CARBURIZING FURNACE FOR STAINLESS FASTENER.
Described housing side offers ground hole, and described cable joint is connected with cable bearer through ground hole by water-proof type earth connection.
The material of described housing is almag.
Described housing two ends are arranged with joint anchor ear.
Compared with prior art, the present invention has the following advantages:
1, shell of the present invention is import ship's classification environment-friendlyaluminium aluminium magnesium alloy materials, and corrosion-resistant, intensity is large.
2, the shaping welding waterproof of the disposable making of the present invention, fire prevention, flame proof, hermetically sealed, full-closed structure, non-maintaining.
3, invention shell placed in the middle toward the convex surface of both sides on each reserved 100mm wide let out can hole, can according to the needs at scene let out can external letting out can hole guide pipe on hole, it is external that to let out energy hole guide pipe can be straight, also can oblique 45 ° towards.
4, the present invention adopts cable bearer to avoid cable joint often to steep to run in water and make moist, enter the situations such as air.
5, let out can the explosion-proof stainless steel coil in chamber be involutory loads onto explosion-proof CARBURIZING FURNACE FOR STAINLESS FASTENER and install and form at middle part.
6, enclosure interior of the present invention is attached to buffering flame-retardant layer and auxiliary material of preventing fires, and can absorb explosion energy, prevent from catching fire.
7, when cable joint punctures on fire, middle part explosion-proof chamber internal induction wire harness senses super-high-current thus triggers flame proof fire extinguisher and starting fire extinguishing instantaneously, makes fray-out of flame.
8, buffering flame-retardant layer plays the effect that naked light cannot be lighted, if cable joint is blasted the explosive forces of absorbed portion, can play the effect of damping.
Accompanying drawing explanation
Fig. 1 is structure vertical view of the present invention.
Fig. 2 is structural front view of the present invention.
Wherein, 1, housing, 11, seal, 12, letting out can hole guide pipe, 13, ground hole, 2, cable joint, 21, induction wire harness, 22, flame proof fire extinguisher.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment:
As illustrated in fig. 1 and 2, a kind of Integral high-pressure cable explosion-proof connector box, in order to the safety of the high-voltage cable joint in cable passage under protecting field, this Explosion proof joint box comprises cable bearer, be arranged on integrated housing 1 on cable bearer and be arranged on the explosion-proof fire-extinguishing assembly of explosion-proof chamber inside in the middle part of housing 1, housing 1 is shuttle-type symmetrical structure, cable aperture is offered at two ends, cable aperture place is provided with seal 11, explosion-proof chamber inside, middle part is also provided with cable joint 2, explosion-proof fire-extinguishing assembly is connected with cable joint 2, housing 1 is also provided with multiple be communicated with middle part explosion-proof chamber let out can hole guide pipe 12, explosion-proof chamber its complementary space inner in middle part all fills fire-proof and thermal-insulation fire proofing.
Explosion-proof fire-extinguishing assembly comprises the induction wire harness 21 being set in cable joint 2 two ends and the flame proof fire extinguisher 22 be connected with induction wire harness 21, flame proof fire extinguisher 22 is provided with multiple, be separately positioned on the two ends of middle part explosion-proof chamber, the inwall of middle part explosion-proof chamber is provided with buffering flame-retardant layer and the auxiliary material of fire prevention.
Let out and can be communicated with middle part explosion-proof chamber in hole by being arranged on letting out on housing 1 by hole guide pipe 12, let out the angle between hole guide pipe 12 and housing 1 to be 90 degree, housing 1 outside is also arranged with explosion-proof stainless steel coil, explosion-proof stainless steel coil is fixed by CARBURIZING FURNACE FOR STAINLESS FASTENER, housing 1 side opening is provided with ground hole 13, cable joint 2 is connected with cable bearer through ground hole 13 by water-proof type earth connection, and the material of housing 1 is almag, and housing 1 two ends are arranged with joint anchor ear.
Housing 1 adopts integral forming structure to be in order to housing 1 reaches stronger overall antiknock impulsive force, fracture resistence force and tensile resistence, allows cable joint 2 remain at desirable level.
Claims (8)
1. an Integral high-pressure cable explosion-proof connector box, in order to the safety of the high-voltage cable joint in cable passage under protecting field, it is characterized in that, this Explosion proof joint box comprises cable bearer, be arranged on integrated housing (1) on cable bearer and be arranged on the explosion-proof fire-extinguishing assembly of explosion-proof chamber inside, housing (1) middle part, described housing (1) is shuttle-type symmetrical structure, cable aperture is offered at two ends, described cable aperture place is provided with seal (11), described explosion-proof chamber inside, middle part is also provided with cable joint (2), described explosion-proof fire-extinguishing assembly is connected with cable joint (2), described housing (1) is also provided with multiple be communicated with middle part explosion-proof chamber let out can hole guide pipe (12), described middle part explosion-proof chamber its complementary space inner all fills fire-proof and thermal-insulation fire proofing.
2. a kind of Integral high-pressure cable explosion-proof connector box according to claim 1, it is characterized in that, described explosion-proof fire-extinguishing assembly comprises the induction wire harness (21) being set in cable joint (2) two ends and the flame proof fire extinguisher (22) be connected with induction wire harness (21), described flame proof fire extinguisher (22) is provided with multiple, is separately positioned on the two ends of middle part explosion-proof chamber.
3. a kind of Integral high-pressure cable explosion-proof connector box according to claim 1, is characterized in that, the inwall of described middle part explosion-proof chamber is provided with buffering flame-retardant layer and the auxiliary material of fire prevention.
4. a kind of Integral high-pressure cable explosion-proof connector box according to claim 1, it is characterized in that, described letting out can be communicated with middle part explosion-proof chamber in hole by being arranged on letting out on housing (1) in hole guide pipe (12), and described letting out can the angle between hole guide pipe (12) and housing (1) be 45-90 degree.
5. a kind of Integral high-pressure cable explosion-proof connector box according to claim 1, is characterized in that, described housing (1) outside is also arranged with explosion-proof stainless steel coil, and described explosion-proof stainless steel coil is fixed by CARBURIZING FURNACE FOR STAINLESS FASTENER.
6. a kind of Integral high-pressure cable explosion-proof connector box according to claim 1, it is characterized in that, described housing (1) side opening is provided with ground hole (13), and described cable joint (2) is connected with cable bearer through ground hole (13) by water-proof type earth connection.
7. a kind of Integral high-pressure cable explosion-proof connector box according to claim 1, is characterized in that, the material of described housing (1) is almag.
8. a kind of Integral high-pressure cable explosion-proof connector box according to claim 1, is characterized in that, described housing (1) two ends are arranged with joint anchor ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418834.9A CN104967086B (en) | 2015-07-16 | 2015-07-16 | A kind of Integral high-pressure cable explosion-proof connector box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418834.9A CN104967086B (en) | 2015-07-16 | 2015-07-16 | A kind of Integral high-pressure cable explosion-proof connector box |
Publications (2)
| Publication Number | Publication Date |
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| CN104967086A true CN104967086A (en) | 2015-10-07 |
| CN104967086B CN104967086B (en) | 2017-03-08 |
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| CN201510418834.9A Active CN104967086B (en) | 2015-07-16 | 2015-07-16 | A kind of Integral high-pressure cable explosion-proof connector box |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281283A (en) * | 2015-11-11 | 2016-01-27 | 国家电网公司 | Split type high-voltage cable connector protection explosion-proof fire-extinguishing box |
| CN106027939A (en) * | 2016-05-28 | 2016-10-12 | 安徽富煌和利时科技股份有限公司 | Bus vehicular hard disk video recorder |
| CN106329428A (en) * | 2016-11-17 | 2017-01-11 | 国网上海市电力公司 | Protective box of cable intermediate joint |
| CN110416936A (en) * | 2019-08-08 | 2019-11-05 | 常州市沃科科技有限公司 | A kind of fire-proof and explosion-proof heat-insulation blanket, cable, cable connector and cable laying structure |
| CN111554413A (en) * | 2020-05-15 | 2020-08-18 | 中国核动力研究设计院 | Fuel assembly for supercritical water-cooled reactor |
| CN112751308A (en) * | 2021-01-22 | 2021-05-04 | 广东安诺新材料科技有限公司 | Explosion-proof housing for cable |
| CN113241720A (en) * | 2021-05-13 | 2021-08-10 | 特变电工昭和（山东）电缆附件有限公司 | Explosion-proof device for high-voltage cable intermediate joint and use method thereof |
| CN113241719A (en) * | 2021-05-13 | 2021-08-10 | 国网北京市电力公司电力建设工程咨询分公司 | Waterproof and explosion-proof high-voltage cable intermediate joint and use method thereof |
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| GB1363628A (en) * | 1971-11-08 | 1974-08-14 | Hepworth Iron Co Ltd | Method of enclosing electric cable joints in joint boxes |
| CN101938107A (en) * | 2010-08-17 | 2011-01-05 | 刘金炜 | Full-sealed water, fire and explosion prevention cable joint safety box |
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| CN201985503U (en) * | 2011-01-26 | 2011-09-21 | 中科动力(福建)电气科技有限公司 | Fire-resistant anti-explosion box for intermediate cable joint |
| CN104201637A (en) * | 2014-07-24 | 2014-12-10 | 钟其达 | 64 to 220 kV high-voltage cable joint protection explosion-proof fire-proof box |
| CN204103433U (en) * | 2014-07-07 | 2015-01-14 | 河南省捷坤电力工程建设有限公司 | A kind of fire-resisting cable connector slot box |
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Patent Citations (6)
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| GB1363628A (en) * | 1971-11-08 | 1974-08-14 | Hepworth Iron Co Ltd | Method of enclosing electric cable joints in joint boxes |
| CN201733055U (en) * | 2009-09-04 | 2011-02-02 | 邵珠合 | Cable joint explosion-proof box |
| CN101938107A (en) * | 2010-08-17 | 2011-01-05 | 刘金炜 | Full-sealed water, fire and explosion prevention cable joint safety box |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281283A (en) * | 2015-11-11 | 2016-01-27 | 国家电网公司 | Split type high-voltage cable connector protection explosion-proof fire-extinguishing box |
| CN106027939A (en) * | 2016-05-28 | 2016-10-12 | 安徽富煌和利时科技股份有限公司 | Bus vehicular hard disk video recorder |
| CN106329428A (en) * | 2016-11-17 | 2017-01-11 | 国网上海市电力公司 | Protective box of cable intermediate joint |
| CN110416936A (en) * | 2019-08-08 | 2019-11-05 | 常州市沃科科技有限公司 | A kind of fire-proof and explosion-proof heat-insulation blanket, cable, cable connector and cable laying structure |
| CN111554413A (en) * | 2020-05-15 | 2020-08-18 | 中国核动力研究设计院 | Fuel assembly for supercritical water-cooled reactor |
| CN111554413B (en) * | 2020-05-15 | 2022-06-07 | 中国核动力研究设计院 | Fuel assembly for supercritical water-cooled reactor |
| CN112751308A (en) * | 2021-01-22 | 2021-05-04 | 广东安诺新材料科技有限公司 | Explosion-proof housing for cable |
| CN113241720A (en) * | 2021-05-13 | 2021-08-10 | 特变电工昭和（山东）电缆附件有限公司 | Explosion-proof device for high-voltage cable intermediate joint and use method thereof |
| CN113241719A (en) * | 2021-05-13 | 2021-08-10 | 国网北京市电力公司电力建设工程咨询分公司 | Waterproof and explosion-proof high-voltage cable intermediate joint and use method thereof |
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| CN104967086B (en) | 2017-03-08 |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Hai Inventor after: Lou Tiecheng Inventor after: Feng Jiang Inventor after: Chen Bing Inventor after: Li Yuhao Inventor before: Li Hai Inventor before: Lou Tiecheng |
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