CN106711918A - Double protection cable intermediate joint safety box provided with inner container and fully filled with fireproofing mud - Google Patents
Double protection cable intermediate joint safety box provided with inner container and fully filled with fireproofing mud Download PDFInfo
- Publication number
- CN106711918A CN106711918A CN201611085838.0A CN201611085838A CN106711918A CN 106711918 A CN106711918 A CN 106711918A CN 201611085838 A CN201611085838 A CN 201611085838A CN 106711918 A CN106711918 A CN 106711918A
- Authority
- CN
- China
- Prior art keywords
- fire
- upper cover
- lower cover
- proof
- shell lower
- 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.)
- Pending
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Classifications
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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
Abstract
The invention discloses a double protection cable intermediate joint safety box provided with an inner container and fully filled with fireproofing mud, which comprises a shell upper cover, fireproofing mud and a shell lower cover, and is characterized in that the shell upper cover and the shell lower cover are fastened and connected in a threaded manner through an explosion-proof inner hexagonal set screw, the outer wall of the shell upper cover and the outer wall of the shell lower cover are provided with explosion-proof pressure releasing points, the internal part of a contraction opening is provided with a waterproof sealing ring, the internal parts of the shell upper cover and the shell lower cover are provided with an inner container, the inner container is internally provided with the fireproofing mud, and the inner wall of the shell upper cover and the inner wall of the shell lower cover are provided with a fireproof flame retardant thermal insulating layer in an attached manner. According to the double protection cable intermediate joint safety box provided with the inner container and fully filled with the fireproofing mud, the internal part of the protection shell is further provided with the inner container, and the inner container is fully filled with the fireproofing mud, so that spreading towards an adjacent chamber through holes when a cable is on fire can be prevented, the property loss caused by the fire is reduced, and expansion of the accident is avoided. The double protection cable intermediate joint safety box disclosed by the invention has the functions of smoke resistance, fire prevention, dust prevention and the like.
Description
Technical field
It is specially a kind of with inner bag and to fill the duplicate protection of fire-proof mud the present invention relates to cable protection box technical field
Cable intermediate joint safety box.
Background technology
18 power network great anti-accident measures (revised edition) 13.2.1.5 of State Grid Corporation of China in 2011 prevent cable fire
The outermost layer of the non-direct-burried cable connector of calamity should coat fire proofing, oil-filled cable joint and lay the joint of intensive midium voltage cable
Closed using fire resisting anti-explosion groove box.13.2.2.1 the in-service joint of cable close quarters should install fire prevention channel box additional or take other to prevent
Fiery quarantine measures.
State Grid Corporation of China of China exists《Prevent 25 important requirements of power generation major accident》(version in 2000)
In propose fire-proof and explosion-proof to cable and cable intermediate joint strictly regulate requirement, to prevent Cable Firing Accident.In order to prevent
The generation of fire incident, should implement item by item《Power equipment typical case's fire-fighting code》And other pertinent regulations (DL5027-93).
Because cable intermediate joint is the most weak link of cable, it is of equal importance with cable.With China's national economy
High speed development, Chinese cableization popularizes engineering throughout each city, and cable is focused on electricity by increasing cable chemical industry journey
In cable ditch or cable shaft, the cable intermediate joint of cable shaft or cable duct in power grid construction is specified by the cableization of national grid
It is not allow side by side, but due in the presence of in many objectively factor cables in the middle of urban distribution network cable chemical industry journey of today
Between joint situation side by side seem to avoid, and common cable intermediate joint be often three or so it is even more simultaneously
Row；The cable duct cable outlet of transformer station is often more than ten or more.With the popularization of power cable chemical industry journey, cable thing
Therefore rate also increases therewith, a host of facts are proved, most cable fault is relevant with cable accessory, particularly in cable indirectly
Head.Due to quality and mounting process, cable intermediate joint once explodes, gently other cables then same ditch side by side
Also destroy, serious will lead to cable fire, and irremediable loss is caused to whole power system.
Current cable intermediate joint protection device only protects cable connector by joint protection box shell, interior
Portion just cannot preferably protect greatly without other protection devices in the power that explosion time generation occurs.
Utility model content
It is an object of the invention to provide it is a kind of with inner bag and fill fire-proof mud duplicate protection cable intermediate joint peace
Full box, only cable connector is protected with solve to propose in above-mentioned background technology by joint protection box shell, internal
Without other protection devices, in the problem that the power that explosion time generation occurs just cannot be protected preferably greatly.
To achieve the above object, the present invention provides following technical scheme：It is a kind of with inner bag and to fill the dual of fire-proof mud
Protection cable intermediate joint safety box, including outer casing upper cover, tightening mouth, explosion-proof relief point, sealing strip, explosion-proof interior hexagonal clamp screw
Nail, inner bag, waterproof grommet, fire protection flame retarding thermal insulation layer, fire-proof mud and shell lower cover, between the outer casing upper cover and shell lower cover
Connected by explosion-proof interior hexagonal holding screw screw threads for fastening, the outer wall of the outer casing upper cover and shell lower cover offers explosion-proof letting out
Pressure point, the outer casing upper cover is provided with sealing strip, the outer casing upper cover and shell lower cover two ends diameter with shell lower cover junction
Diminish to form tightening mouth, waterproof grommet is installed inside the tightening mouth, the outer casing upper cover sets with the inside of shell lower cover
Have and fire-proof mud is provided with inside inner bag, and inner bag, the outer casing upper cover has fire protection flame retarding thermal insulation layer with the inwall of shell lower cover.
Preferably, the explosion-proof relief point is offered at eight altogether.
Preferably, the outer casing upper cover uses wavy shaped configuration, and outer casing upper cover and shell lower cover with shell lower cover
Wave mode is U-shaped wave mode.
Preferably, the outer casing upper cover collectively constitutes protective housing with shell lower cover, and the outer surface of protective housing sprays
There is anti-corrosion uvioresistant powder.
Preferably, fire protection flame retarding thermal insulation layer is provided between the protective housing and inner bag, and fire-proof mud is filled inside inner bag.
Compared with prior art, the beneficial effects of the invention are as follows：This has inner bag and fills the duplicate protection electricity of fire-proof mud
Cable transition joint safety box protective housing uses wavy shaped configuration, and the U-shaped structure of wave mode, it is ensured that electric arc heat release is occurring
During the situation of boosting, the wave of protective housing can absorb part energy under pressure, and housing radial dimension increases, reaches
Explosion-proof effect, protective housing connects into a main body by two shells by explosion-proof interior hexagonal trip bolt, and outer at two
Shell junction is provided with sealing strip, and the two ends diameter of protective housing diminishes to form tightening mouth, and waterproof grommet is provided with inside tightening mouth,
Sealing, waterproof action can be played so that the cable intermediate joint safety box is all-sealed structure, it is adaptable to run under water or badly
Environment, it is to avoid often bubble runs cable intermediate joint in water, makes moist, and situations such as enter air, reduction occurs the probability of accident, protects
Shield housing exterior walls offer explosion-proof relief point at eight altogether, explosion time can occur, and carry out pressure release by assigned direction, it is to avoid destroy it
Its facility, prevents other cables same ditch side by side from also destroying, and serious will lead to cable fire, be made to whole power system
Into irremediable loss, effectively reduce blast impulse and involve the property loss that bomb fragments are caused, the spray of protective housing outer surface
Scribble anti-corrosion uvioresistant powder so that protective housing can for a long time play preferably fire prevention, fire retardation, fire protection flame retarding thermal insulation layer
Fire protection flame retarding, heat-blocking action can be played, the cable intermediate joint safety box is duplicate protection cable intermediate joint safety box, is protected
Shield enclosure interior is additionally provided with fills fire-proof mud in inner bag, and inner bag, for the holes blocking of cable, can prevent cable from occurring
Spread from hole to adjacent room during fire, reduce fire produce property loss, it is to avoid the expansion of accident, and with resistance cigarette, fire prevention,
The function such as dust-proof.
Brief description of the drawings
Fig. 1 is cable intermediate joint safety box structural representation of the present invention；
Fig. 2 is cable intermediate joint safety box inner-tube structure schematic diagram of the present invention；
Fig. 3 is cable intermediate joint safety box internal structure schematic diagram of the present invention.
In figure：1st, outer casing upper cover, 2, tightening mouth, 3, explosion-proof relief point, 4, sealing strip, 5, explosion-proof interior hexagonal holding screw,
6th, inner bag, 7, waterproof grommet, 8, fire protection flame retarding thermal insulation layer, 9, fire-proof mud, 10, shell lower cover.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme：It is a kind of with inner bag and to fill the duplicate protection of fire-proof mud
Cable intermediate joint safety box, including outer casing upper cover 1, tightening mouth 2, explosion-proof relief point 3, sealing strip 4, explosion-proof interior hexagonal clamp screw
Nail 5, inner bag 6, waterproof grommet 7, fire protection flame retarding thermal insulation layer 8, fire-proof mud 9 and shell lower cover 10, outer casing upper cover 1 and shell lower cover
Connected by the explosion-proof interior screw threads for fastening of hexagonal holding screw 5 between 10, outer casing upper cover 1 collectively constitutes containment vessel with shell lower cover 10
Body, and the outer surface of protective housing is coated with anti-corrosion uvioresistant powder, protective housing outer surface is coated with anti-corrosion uvioresistant
Powder so that protective housing can for a long time play preferably fire prevention, fire retardation, outer casing upper cover 1 uses ripple with shell lower cover 10
Shape wave structure, and outer casing upper cover 1 is U-shaped wave mode with the wave mode of shell lower cover 10, it is ensured that there is electric arc heat release boosting
Situation when, the wave of protective housing can absorb part energy under pressure, and housing radial dimension increases, reaches explosion-proof
Effect, the outer wall of outer casing upper cover 1 and shell lower cover 10 offers explosion-proof relief point 3, and explosion-proof relief point 3 offers eight altogether
Place, can occur explosion time, carry out pressure release by assigned direction, it is to avoid destroy other facilities, prevent other electricity side by side same ditch
Cable is also destroyed, and serious will lead to cable fire, and irremediable loss is caused effectively to reduce quick-fried to whole power system
Fried impact involves the property loss that bomb fragments are caused, and outer casing upper cover 1 is provided with sealing strip 4 with the junction of shell lower cover 10, outward
Lid 1 diminishes to form tightening mouth 2 with the two ends diameter of shell lower cover 10 on shell, and waterproof grommet 7, shell are provided with inside tightening mouth 2
Upper lid 1 is provided with the inside of shell lower cover 10 and fire-proof mud 9 is provided with inside inner bag 6, and inner bag 6, is set between protective housing and inner bag 6
Have and fire-proof mud 9 is filled inside fire protection flame retarding thermal insulation layer 8, and inner bag 6, fire protection flame retarding thermal insulation layer 8 can play fire protection flame retarding, heat-insulated
Effect, the cable intermediate joint safety box is duplicate protection cable intermediate joint safety box, and inner bag is additionally provided with inside protective housing
6, and inner bag 6 in fill fire-proof mud 9, for the holes blocking of cable, can prevent cable occur fire when from hole to neighbour
Room is spread, and reduces the property loss that fire is produced, it is to avoid the expansion of accident, and with the function, shell such as resistance cigarette, fire prevention, dust-proof
Upper lid 1 has fire protection flame retarding thermal insulation layer 8 with the inwall of shell lower cover 10.
Operation principle：When there is inner bag using this and the duplicate protection cable intermediate joint safety box of fire-proof mud is filled,
Need with inner bag and to fill the duplicate protection cable intermediate joint safety box of fire-proof mud and have in a structure to whole first
Solution, outer casing upper cover 1 and shell lower cover 10 connect into protective housing by explosion-proof interior hexagonal holding screw 5, and protective housing outer wall is opened
Explosion-proof relief point 3 at eight is provided with, explosion time can occur, carry out pressure release by assigned direction, it is to avoid other facilities are destroyed, with effective
Reduce blast impulse and involve the probability that bomb fragments cause any property loss, protective housing inwall has fire protection flame retarding thermal insulation layer 8, tool
There are fire protection flame retarding, heat-blocking action, protective housing two ends diameter diminishes to form tightening mouth 2, waterproof grommet is provided with tightening mouth 2
7, outer casing upper cover 1 and the junction of shell lower cover 10 are provided with sealing strip so that the cable intermediate joint safety box is all-sealed structure,
Suitable under water or severe running environment, it is to avoid often bubble runs cable intermediate joint in water, makes moist, situations such as enter air,
There is the probability of accident in reduction, the cable intermediate joint safety box is duplicate protection cable intermediate joint safety box, protective housing
Inside it is additionally provided with inner bag 6, inner bag 6 and fills fire-proof mud 9, for the holes blocking of cable, can prevents cable from fire occurring
When spread from hole to adjacent room, reduce the property loss that fire is produced, it is to avoid the expansion of accident, and with resistance cigarette, fire prevention, dust-proof
Etc. function, so as to play double protection functions, the protective housing uses wavy shaped configuration, and wave mode is U-shaped, it is ensured that in hair
During the situation of raw electric arc heat release boosting, the wave of protective housing can absorb part energy, housing radial ruler under pressure
Very little increase, reaches explosion-proof effect, and protective housing outer surface is coated with anti-corrosion uvioresistant powder so that protective housing can be long-term
Play preferably fire prevention, fire retardation.
In sum, although being described in detail to the present invention with reference to the foregoing embodiments, for the technology of this area
For personnel, it can still modify to the technical scheme described in foregoing embodiments, or to which part technology
Feature carries out equivalent, all any modifications within the spirit and principles in the present invention, made, etc. to replacing, improving etc.,
Should be included within protection scope of the present invention.
Claims (5)
1. it is a kind of with inner bag and to fill the duplicate protection cable intermediate joint safety box of fire-proof mud including outer casing upper cover (1), tight
Necking (2), explosion-proof relief point (3), sealing strip (4), explosion-proof interior hexagonal holding screw (5), inner bag (6), waterproof grommet (7),
Fire protection flame retarding thermal insulation layer (8), fire-proof mud (9) and shell lower cover (10), it is characterised in that：Under the outer casing upper cover (1) and shell
By explosion-proof interior hexagonal holding screw (5) screw threads for fastening connection, the outer casing upper cover (1) and shell lower cover (10) between lid (10)
Outer wall offer explosion-proof relief point (3), the outer casing upper cover (1) is provided with sealing strip with shell lower cover (10) junction
(4), the outer casing upper cover (1) diminishes to form tightening mouth (2) with shell lower cover (10) two ends diameter, and the tightening mouth (2) is internal
Waterproof grommet (7) is installed, the outer casing upper cover (1) is provided with inner bag (6), and inner bag (6) with the inside of shell lower cover (10)
Inside is provided with fire-proof mud (9), and the outer casing upper cover (1) has fire protection flame retarding thermal insulation layer (8) with the inwall of shell lower cover (10).
2. it is according to claim 1 a kind of with inner bag and to fill the duplicate protection cable intermediate joint safety of fire-proof mud
Box, it is characterised in that：The explosion-proof relief point (3) is offered at eight altogether.
3. it is according to claim 1 a kind of with inner bag and to fill the duplicate protection cable intermediate joint safety of fire-proof mud
Box, it is characterised in that：The outer casing upper cover (1) and shell lower cover (10) use wavy shaped configuration, and outer casing upper cover (1) with it is outer
The wave mode of shell lower cover (10) is U-shaped wave mode.
4. it is according to claim 1 a kind of with inner bag and to fill the duplicate protection cable intermediate joint safety of fire-proof mud
Box, it is characterised in that：The outer casing upper cover (1) and shell lower cover (10) collectively constitute protective housing, and protective housing appearance
Face is coated with anti-corrosion uvioresistant powder.
5. it is according to claim 4 a kind of with inner bag and to fill the duplicate protection cable intermediate joint safety of fire-proof mud
Box, it is characterised in that：It is provided between the protective housing and inner bag (6) inside fire protection flame retarding thermal insulation layer (8), and inner bag (6) and is filled
Full fire-proof mud (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611085838.0A CN106711918A (en) | 2016-11-30 | 2016-11-30 | Double protection cable intermediate joint safety box provided with inner container and fully filled with fireproofing mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611085838.0A CN106711918A (en) | 2016-11-30 | 2016-11-30 | Double protection cable intermediate joint safety box provided with inner container and fully filled with fireproofing mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106711918A true CN106711918A (en) | 2017-05-24 |
Family
ID=58935273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611085838.0A Pending CN106711918A (en) | 2016-11-30 | 2016-11-30 | Double protection cable intermediate joint safety box provided with inner container and fully filled with fireproofing mud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106711918A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879572A (en) * | 2018-08-15 | 2018-11-23 | 深圳供电局有限公司 | A kind of high-voltage cable middle joint protecting crust with stuffing box |
| CN109546607A (en) * | 2018-12-07 | 2019-03-29 | 广州骏拓电力科技有限公司 | A kind of radiating explosion-proof preventing arc joint protection box |
| CN112928691A (en) * | 2020-05-26 | 2021-06-08 | 粤光闪闪科技有限公司 | Protection method of power equipment |
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| US20060231283A1 (en) * | 2005-04-19 | 2006-10-19 | Stagi William R | Cable connector having fluid reservoir |
| CN201298725Y (en) * | 2008-05-26 | 2009-08-26 | 上海宝钢化工有限公司 | Fire-proof and explosion-proof unit for middle cable joint |
| CN102468640A (en) * | 2010-11-10 | 2012-05-23 | 江苏宝安电缆有限公司 | Intermediate connector special for fireproof cables |
| CN202384738U (en) * | 2012-01-12 | 2012-08-15 | 刘金炜 | Energy release-type cable middle connector explosion-proof safe protection box |
| CN203086094U (en) * | 2012-11-28 | 2013-07-24 | 江苏安靠智能输电工程科技股份有限公司 | High-voltage cable joint protecting shell |
| CN204615345U (en) * | 2015-04-03 | 2015-09-02 | 重庆大业电气有限责任公司 | Cable joint explosive-proof protector box |
| CN206353690U (en) * | 2016-11-30 | 2017-07-25 | 广东安诺新材料科技有限公司 | A kind of duplicate protection cable intermediate joint safety box that there is inner bag and fire-proof mud is filled |
-
2016
- 2016-11-30 CN CN201611085838.0A patent/CN106711918A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060231283A1 (en) * | 2005-04-19 | 2006-10-19 | Stagi William R | Cable connector having fluid reservoir |
| CN201298725Y (en) * | 2008-05-26 | 2009-08-26 | 上海宝钢化工有限公司 | Fire-proof and explosion-proof unit for middle cable joint |
| CN102468640A (en) * | 2010-11-10 | 2012-05-23 | 江苏宝安电缆有限公司 | Intermediate connector special for fireproof cables |
| CN202384738U (en) * | 2012-01-12 | 2012-08-15 | 刘金炜 | Energy release-type cable middle connector explosion-proof safe protection box |
| CN203086094U (en) * | 2012-11-28 | 2013-07-24 | 江苏安靠智能输电工程科技股份有限公司 | High-voltage cable joint protecting shell |
| CN204615345U (en) * | 2015-04-03 | 2015-09-02 | 重庆大业电气有限责任公司 | Cable joint explosive-proof protector box |
| CN206353690U (en) * | 2016-11-30 | 2017-07-25 | 广东安诺新材料科技有限公司 | A kind of duplicate protection cable intermediate joint safety box that there is inner bag and fire-proof mud is filled |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879572A (en) * | 2018-08-15 | 2018-11-23 | 深圳供电局有限公司 | A kind of high-voltage cable middle joint protecting crust with stuffing box |
| CN108879572B (en) * | 2018-08-15 | 2024-04-19 | 深圳供电局有限公司 | High-voltage cable middle joint protective shell with packing box |
| CN109546607A (en) * | 2018-12-07 | 2019-03-29 | 广州骏拓电力科技有限公司 | A kind of radiating explosion-proof preventing arc joint protection box |
| CN112928691A (en) * | 2020-05-26 | 2021-06-08 | 粤光闪闪科技有限公司 | Protection method of power equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |