CN207234370U - A kind of orientable cable intermediate joint protecting box - Google Patents
A kind of orientable cable intermediate joint protecting box Download PDFInfo
- Publication number
- CN207234370U CN207234370U CN201721196555.3U CN201721196555U CN207234370U CN 207234370 U CN207234370 U CN 207234370U CN 201721196555 U CN201721196555 U CN 201721196555U CN 207234370 U CN207234370 U CN 207234370U
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- China
- Prior art keywords
- box
- intermediate joint
- cable intermediate
- extinguishing chemical
- orientable
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Abstract
The utility model discloses a kind of orientable cable intermediate joint flame failure protection box, including shell body, fire extinguishing box and warning device.Shell body the bolted upper cover plate of pressure release and lower groove box by being made up of；Fire extinguishing box has been bolted in lower groove box both ends；Extinguishing chemical release device is provided with fire extinguishing box, extinguishing chemical release device is connected with extinguishing chemical release catheter, and the through hole of face cable intermediate joint is provided with extinguishing chemical release catheter；Warning device includes temperature sensor, signal projector and terminal receiver, signal projector and temperature sensor are separately fixed at fire extinguishing box afterbody and cable intermediate joint, temperature sensor is electrically connected with signal projector, terminal receiver is located in control room, for receiving the signal of signal projector transmitting.Using the protecting box of the structure, it can effectively solve to be unable to fast positioning trouble point when ground end cable intermediate joint breaks down and protecting box is unable to the technical problem of active suppression.
Description
Technical field
It the utility model is related to a kind of cable intermediate joint protective device, and in particular in a kind of orientable cable indirectly
Head protection box.
Background technology
With the extension of urban construction, passage inner cable replaces overhead transmission line to become inexorable trend.Passage inner cable quantity
Increase sharply, the increase of operation troubles is result in, especially at cable intermediate joint.Cable intermediate joint is whole cable
The most weak link in road, joint between 70% operation troubles all occurs in the cable, cable intermediate joint ground connection or short circuit electricity
The naked light that arc produces, which can not only ignite, to be closed on ignition of cable and is also possible to other combustibles in ignition pathway at the same time, is significantly increased
Fire hazard.Cable duct tunnel at the same time, because it constructs particularity, once catch fire certainly will will in passage fast propagation, occur big
The power failure of area, causes huge economic loss.
The investigation to cable fault is also a difficult point at present, generally by acousto-optic magnetic-synchro positioning mode, carrys out trouble-shooting
The Position Approximate of point, but its positioning is not accurate enough, while easily disturbed by surrounding environment, it is difficult to fixing a breakdown at the first time,
Accident is often led to further to develop.Fireproofing passiveness is generally used currently for cable duct tunnel fire proofing, i.e., using stainless steel box
The interior method for applying fireproof coating and fire proofing firbre cloth, but its effect is limited, can neither carry out fault location alarm, can not lead
Dynamic fire extinguishing, is only capable of within a certain period of time by the control of fire in this section of cable, is not propagated to adjacent cable, simultaneously because the device
Fire resistance period temperature it is limited, after 1000 degree, it is most likely that to adjacent cables propagate, and at present cable intermediate joint because of phase
Between short circuit and occur cable intermediate joint explosion, moment produce explosive forces and high temperature be enough to destroy stainless steel box, because
This its reliability is poor.
Utility model content
For the above-mentioned existing prior art, the utility model will solve cannot be fast when ground end cable intermediate joint breaks down
Fast fault point and protecting box are unable to the technical problem of active suppression.
In order to achieve the above object, technical solution is used by the utility model：There is provided in a kind of orientable cable
Between connector flame failure protection box, including shell body and warning device；Shell body is made of upper cover plate and lower groove box, upper cover plate and lower groove
Box is bolted by pressure release；Fire extinguishing box has been bolted in lower groove box both ends；Extinguishing chemical release dress is provided with fire extinguishing box
Put, extinguishing chemical release device is connected with extinguishing chemical release catheter, and face cable intermediate joint is provided with extinguishing chemical release catheter
Through hole；Warning device includes temperature sensor, signal projector and terminal receiver, signal projector and temperature sensor point
It is not fixed at fire extinguishing box afterbody and cable intermediate joint, temperature sensor is electrically connected with signal projector, terminal receiver position
In in control room, for receiving the signal of signal projector transmitting.
Based on the above technical solutions, the utility model can also do following improvement.
Further, extinguishing chemical release device includes aerogenesis room, extinguishing chemical room and initiation element；Aerogenesis is filled with gas in room
Propellant, it is communicated with extinguishing chemical room；Extinguishing chemical is filled with dry powder fire extinguishing agent in room, it is communicated with extinguishing chemical release catheter；Draw
Hair element is connected with the aerogenesis room.
Further, initiation element is thermal initiation element and electric initiation element；Thermal initiation element is to be coated with protective case
Heat-sensitive line；Electric initiation element is to be enclosed with the electric igniter of ignition charge, its thermoelectric generator with being fixed on lower groove box end
It is connected.
Further, gas-forming agent is cylindrical, its surface is coated with the layer of silica gel that with the addition of fire retardant and anti-blushing agent.
Further, extinguishing chemical chamber surface is provided with nozzle, and extinguishing chemical release catheter is sleeved on nozzle.
Further, thermal insulation board is fixed with the inside of lower groove box, thermal insulation board is followed successively by alumina-silicate ceramic fibre plate, silicon from inside to outside
Glue-line and the epoxy resin layer added with fire retardant.
Further, the epoxy resin that with the addition of expanded perlite, fire extinguishing box junction are cast with fire extinguishing box internal voids
Gap sealed with silica gel.
Further, pressure release bolt is half tooth bolts of M6, and being set with internal diameter on its screw rod is 5mm, is highly the rubber of 5mm
Circle, screw rod tail are additionally provided with supporting STAINLESS STEEL NUTS.
Further, extinguishing chemical release catheter is stainless steel tube, and the quantity of through hole is 10.
Further, at least provided with the temperature difference fever tablet and heat sink that 4 height are 1cm in thermoelectric generator.
The beneficial effects of the utility model are：The upper cover plate of flame failure protection box and lower groove box are bolted by pressure release, when
Cable intermediate joint explosion time, caused impact force have destroyed the rubber ring of fixation, and upper cover plate is lifted, upper cover plate with
Form pressure relief opening between lower groove box, can effective pressure release, and due to the presence of screw rod tail nut, upper cover plate will not with lower groove box
Separation, avoids flame failure protection box and is destroyed.
Fire extinguishing box is individually fixed on lower groove box, completely independent with upper cover plate, therefore even if cable intermediate joint is quick-fried
Fried, upper cover plate is raised, and fire extinguishing box remains to normally start and completes to put out a fire.When cable intermediate joint is on fire, put out a fire in box
Extinguishing chemical release device starts fire extinguishing by detecting automatically, rather than it is passive prevent fire spreading, greatly reduce fire and make
Into loss.Extinguishing chemical release device has thermal initiation and electricity to trigger two kinds of initiation methods, adds the reliability of flame failure protection box.
The protected cable intermediate joint of through hole face on extinguishing chemical release catheter, extinguishing chemical reach ignition point by conduit, realize
The fire extinguishing of " point-to-point ", extinguishing effect is more preferably.
Accident warning device is provided with flame failure protection box, when the protected cable intermediate joint of flame failure protection box internal cause is different
Often and occur temperature rise reach early warning value or occur fire fire extinguishing box start when, signal projector this signal can be sent to
Terminal receiver, and numbered by pre-set cable intermediate joint and show trouble location, greatly reduce trouble shoot
Time.
Brief description of the drawings
Fig. 1 is the front view of the utility model；
Fig. 2 is the explosive view of the utility model；
Fig. 3 is the internal structural map of fire extinguishing box；
Fig. 4 is the front view of half tooth bolt；
Wherein, 1, shell body；2nd, upper cover plate；3rd, lower groove box；4th, fire extinguishing box；5th, thermoelectric generator；6th, pressure release bolt；7th, spiral shell
Bolt；8th, extinguishing chemical release catheter；9th, thermal insulation board；10th, aerogenesis room；11st, extinguishing chemical room；12nd, nozzle；13rd, heat-barrier material；14th, draw
Send out element；15th, signal projector；16th, temperature sensor；17th, rubber ring；18th, nut.
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
In the embodiment of the utility model, as shown in figures 1-4, there is provided a kind of orientable cable intermediate joint fire extinguishing
Protecting box, including shell body 1 and warning device.Shell body 1 is made of upper cover plate 2 and lower groove box 3, passes through pressure release spiral shell between them
Bolt 6 is attached.Pressure release bolt 6 in the utility model is half tooth bolts of M6, and is set with internal diameter on the screw rod of bolt and is
5mm, be highly the rubber ring 17 of 5mm, and screw rod tail is provided with STAINLESS STEEL NUTS 18.When cable intermediate joint explodes
When, explosive forces destroy on half tooth bolts of M6 the rubber ring 17 for playing fixation, and upper cover plate 2 is lifted, but due to screw rod tail
The presence of portion's STAINLESS STEEL NUTS 18, upper cover plate 2 will not be separated with lower groove box 3, and pressure relief opening is formed between upper cover plate 2 and lower groove box 3,
Can effective pressure release, prevent protecting box to be destroyed, play explosion-proof.To protecting box after cable intermediate joint catches fire in order to prevent
Itself and surrounding cables impact, and the lower inner side of groove box 3 are provided with thermal insulation board 9, thermal insulation board 9 is followed successively by silicic acid from inside to outside
Aluminium ceramic beaverboard, layer of silica gel and the epoxy resin layer added with fire retardant.
Fire extinguishing box 4 is fixed with the both ends of lower groove 3, fire extinguishing box 4 is connected by bolt 7 with lower groove 3.Box 4 of putting out a fire is single
Solely it is fixed on lower groove box 3, it is completely independent with upper cover plate 2, therefore even if cable intermediate joint explodes, upper cover plate 2 is lifted
Open, fire extinguishing box 4 remains to normally start and completes to put out a fire.Fire extinguishing box 4 is internally provided with extinguishing chemical release device, extinguishing chemical release
Device in fire extinguishing 4 internal fires of box or explosion time, can quick release extinguishing chemical, and pipe 8 is discharged by extinguishing chemical by extinguishing chemical
Ignition point is blown into, realizes active suppression.Extinguishing chemical release device includes aerogenesis room 10, extinguishing chemical room 11 and initiation element 14.
Gas-forming agent is filled with aerogenesis room 10, loads and fixed, gas-forming agent is pressed into cylindric for convenience；And it is
Avoid underground wet environment from gas-forming agent is failed, columned gas generant surface be also enclosed with the addition of it is fire-retardant
Agent and the layer of silica gel of anti-blushing agent.Ultra-fine dry powder extinguishing agent is filled with extinguishing chemical room 11, extinguishing chemical room 11 is connected with aerogenesis room 10,
Strainer is provided with connectivity points, can effectively prevent the residue after gas-forming agent burning from entering extinguishing chemical room 11, avoid occurring
The situation that extinguishing chemical release catheter 8 blocks.The fire extinguishing box 4 at lower 3 both ends of groove box is connected with extinguishing chemical release catheter 8, and extinguishing chemical is released
Put the through hole that face cable intermediate joint is provided with conduit 8.Extinguishing chemical release catheter 8 is located in lower groove 3, it must have
High temperature resistant and shock proof characteristic, therefore, the most handy steel pipe of extinguishing chemical release catheter 8 are made.Extinguishing chemical is released in the utility model
It is DN16*115cm stainless steel tubes to put conduit 8, and be evenly arranged on steel pipe the Φ 5.2 of 10 face cable intermediate joints
Hole.In order to increase the impact force of extinguishing chemical, to bring more preferable extinguishing effect, extinguishing chemical chamber surface is provided with nozzle 12, goes out
Fiery agent release catheter 8 is sleeved on nozzle 12.Initiation element 14 in extinguishing chemical release device is triggered by thermal initiation element and electricity
Element collectively forms.Thermal initiation element is the heat-sensitive line for being coated with protective case, and heat-sensitive line is worn from extinguishing chemical release catheter 8
Cross, its both ends is connected with the aerogenesis room 10 in fire extinguishing box respectively；Electric initiation element is to be enclosed with the electric igniter of ignition charge, the temperature difference
Electric organ 5 is used as its power supply.Thermoelectric generator 5 is fixed on 3 both ends of lower groove, its specification is 110*110*25mm, inside it
At least provided with the temperature difference fever tablet and heat sink that 4 height are 1cm.Since present cable is more in underpass, and ground
Lower channel humid environment, easily catchment, in order to ensure 4 long-term normal operation of box of putting out a fire, the gap silica gel of 4 junction of fire extinguishing box
Sealed, be in addition cast with heat-barrier material 13 at fire extinguishing 4 internal voids of box, which is that with the addition of expanded pearlite
The epoxy resin of rock, not only heat-insulated, good water-proof effect, but also fixed and antidetonation can be played the role of.
Warning device on flame failure protection box includes temperature sensor 16, signal projector 15 and terminal receiver.Temperature
Sensor 16 is fixed at cable intermediate joint, and the temperature of cable intermediate joint can be monitored.When in flame failure protection box
When temperature reaches 170 DEG C ± 10 DEG C, the initiation element 14 in box 4 of putting out a fire triggers extinguishing chemical release device to start to work, and realizes certainly
Dynamic fire extinguishing；Meanwhile monitoring result is transferred in signal projector 15 by temperature sensor 16, signal projector 15 is by monitoring result
It is converted into electric signal outwards to launch, while that launches also has pre-set cable intermediate joint numbering.It is placed in control room
Terminal receiver receive the signal sent of signal projector 15 and be presented to staff, easy to quickly determine the position of trouble point
Put and the temperature regime of trouble point.
By verification experimental verification, when the flame failure protection box in the utility model is used in the joint of 10kv cables, connector is on fire
After can ensure 100% fire extinguishing success, protecting effect is excellent.When used in the joint of 110kv cables, due at this voltage,
Connector speed block on fire, brisance are strong, which is down to 80% or so, while it is not guaranteed that fire extinguishing completely
Success, but certain protective action can be also played, certain positive effect can also be played to the generation for preventing fire.
Although being described in detail with reference to attached drawing to specific embodiment of the present utility model, should not be construed as pair
The restriction of the protection domain of this patent.In the described scope of claims, those skilled in the art are without creative labor
The dynamic various modifications that can be made and deformation still belong to the protection domain of this patent.
Claims (10)
1. a kind of orientable cable intermediate joint flame failure protection box, it is characterized in that：Including shell body (1), fire extinguishing box (4) and report
Alarm device；The shell body (1) is made of upper cover plate (2) and lower groove box (3), and the upper cover plate (2) and lower groove box (3) are by letting out
Press bolt (6) connection；The fire extinguishing box (4) is fixed on lower groove box (3)；Extinguishing chemical release is provided with the fire extinguishing box (4)
Device, the extinguishing chemical release device are connected with extinguishing chemical release catheter (8), are provided with the extinguishing chemical release catheter (8)
The through hole of face cable intermediate joint；The warning device connects including temperature sensor (16), signal projector (15) and terminal
Device is received, the signal projector (15) and temperature sensor (16) are separately fixed at fire extinguishing box (4) afterbody and cable intermediate joint
Place, the temperature sensor (16) are electrically connected with signal projector (15), and the terminal receiver is located in control room, for connecing
Receive the signal of signal projector (15) transmitting.
2. orientable cable intermediate joint flame failure protection box according to claim 1, it is characterized in that：The extinguishing chemical is released
Putting device includes aerogenesis room (10), extinguishing chemical room (11) and initiation element (14)；Gas hair is filled with the aerogenesis room (10)
Raw agent, it is communicated with extinguishing chemical room (11)；Dry powder fire extinguishing agent is filled with the extinguishing chemical room (11), it leads with extinguishing chemical release
Pipe (8) communicates；The initiation element (14) is connected with the aerogenesis room (10).
3. orientable cable intermediate joint flame failure protection box according to claim 2, it is characterized in that：The initiation element
(14) collectively formed by thermal initiation element and electric initiation element；The thermal initiation element is the temperature-sensitive for being coated with protective case
Line；The electricity initiation element is to be enclosed with the electric igniter of ignition charge, its thermoelectric generator with being fixed on lower groove box (3) end
(5) it is connected.
4. orientable cable intermediate joint flame failure protection box according to claim 2, it is characterized in that：The gas occurs
Agent is cylindrical, its surface is coated with the layer of silica gel that with the addition of fire retardant and anti-blushing agent.
5. orientable cable intermediate joint flame failure protection box according to claim 2, it is characterized in that：The extinguishing chemical room
(11) surface is provided with nozzle (12), and the extinguishing chemical release catheter (8) is sleeved on the nozzle (12).
6. orientable cable intermediate joint flame failure protection box according to claim 1, it is characterized in that：The lower groove box
(3) inner side is fixed with thermal insulation board (9), and the thermal insulation board (9) is followed successively by alumina-silicate ceramic fibre plate, layer of silica gel and adds from inside to outside
Added with the epoxy resin layer of fire retardant.
7. orientable cable intermediate joint flame failure protection box according to claim 1, it is characterized in that：The fire extinguishing box
(4) heat-barrier material (13) is cast with internal voids, the heat-barrier material (13) is the epoxy resin that with the addition of expanded perlite,
The gap of described fire extinguishing box (4) junction is sealed with silica gel.
8. orientable cable intermediate joint flame failure protection box according to claim 1, it is characterized in that：The pressure release bolt
(6) it is half tooth bolts of M6, is set with that internal diameter is 5mm, is highly the rubber ring (17) of 5mm on its screw rod, the screw rod tail is also
It is provided with supporting STAINLESS STEEL NUTS (18).
9. orientable cable intermediate joint flame failure protection box according to claim 1, it is characterized in that：The extinguishing chemical is released
It is stainless steel tube to put conduit (8), and the quantity of the through hole is 10.
10. orientable cable intermediate joint flame failure protection box according to claim 3, it is characterized in that：The temperature difference hair
At least provided with the temperature difference fever tablet and heat sink that 4 height are 1cm in electric appliance (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721196555.3U CN207234370U (en) | 2017-09-18 | 2017-09-18 | A kind of orientable cable intermediate joint protecting box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721196555.3U CN207234370U (en) | 2017-09-18 | 2017-09-18 | A kind of orientable cable intermediate joint protecting box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207234370U true CN207234370U (en) | 2018-04-13 |
Family
ID=61862800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721196555.3U Active CN207234370U (en) | 2017-09-18 | 2017-09-18 | A kind of orientable cable intermediate joint protecting box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207234370U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390350A (en) * | 2018-05-08 | 2018-08-10 | 广东电网有限责任公司 | A kind of waterproof anti-explosion box of cable intermediate joint |
| CN109079582A (en) * | 2018-08-22 | 2018-12-25 | 沈阳航空航天大学 | A kind of digital display presser device and method for surveying clamping force |
| KR102045822B1 (en) * | 2019-04-09 | 2019-11-18 | 이호기술단(주) | Method for manufacturing optical telecommunication assembly |
| KR102045819B1 (en) * | 2019-04-09 | 2019-11-18 | 이호기술단(주) | ptical telecommunication assembly |
| CN111431137A (en) * | 2020-04-20 | 2020-07-17 | 深圳供电局有限公司 | Cable intermediate joint |
| CN112331398A (en) * | 2020-11-02 | 2021-02-05 | 国网安徽省电力有限公司 | Fireproof and heat-resistant power transmission line structure |
| CN114256748A (en) * | 2021-12-17 | 2022-03-29 | 阳光电源股份有限公司 | Pressure relief device and electrical equipment |
| CN114336478A (en) * | 2022-03-09 | 2022-04-12 | 欧米勒电气有限公司 | High-voltage direct-current breaker valve tower structure and using method thereof |
| CN115102144A (en) * | 2022-08-25 | 2022-09-23 | 长春工程学院 | Small current grounding system fault protection device and method |
-
2017
- 2017-09-18 CN CN201721196555.3U patent/CN207234370U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390350A (en) * | 2018-05-08 | 2018-08-10 | 广东电网有限责任公司 | A kind of waterproof anti-explosion box of cable intermediate joint |
| CN109079582A (en) * | 2018-08-22 | 2018-12-25 | 沈阳航空航天大学 | A kind of digital display presser device and method for surveying clamping force |
| KR102045822B1 (en) * | 2019-04-09 | 2019-11-18 | 이호기술단(주) | Method for manufacturing optical telecommunication assembly |
| KR102045819B1 (en) * | 2019-04-09 | 2019-11-18 | 이호기술단(주) | ptical telecommunication assembly |
| CN111431137A (en) * | 2020-04-20 | 2020-07-17 | 深圳供电局有限公司 | Cable intermediate joint |
| CN111431137B (en) * | 2020-04-20 | 2021-12-21 | 深圳供电局有限公司 | Cable intermediate joint |
| CN112331398A (en) * | 2020-11-02 | 2021-02-05 | 国网安徽省电力有限公司 | Fireproof and heat-resistant power transmission line structure |
| CN112331398B (en) * | 2020-11-02 | 2022-08-02 | 国网安徽省电力有限公司 | Fireproof and heat-resistant power transmission line structure |
| CN114256748A (en) * | 2021-12-17 | 2022-03-29 | 阳光电源股份有限公司 | Pressure relief device and electrical equipment |
| CN114336478A (en) * | 2022-03-09 | 2022-04-12 | 欧米勒电气有限公司 | High-voltage direct-current breaker valve tower structure and using method thereof |
| CN115102144A (en) * | 2022-08-25 | 2022-09-23 | 长春工程学院 | Small current grounding system fault protection device and method |
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