CN106229935A - A kind of high-voltage cable joint fireproof protection box - Google Patents
A kind of high-voltage cable joint fireproof protection box Download PDFInfo
- Publication number
- CN106229935A CN106229935A CN201610687110.9A CN201610687110A CN106229935A CN 106229935 A CN106229935 A CN 106229935A CN 201610687110 A CN201610687110 A CN 201610687110A CN 106229935 A CN106229935 A CN 106229935A
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- China
- Prior art keywords
- drive mechanism
- half box
- box
- cable
- voltage cable
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Classifications
-
- 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
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a kind of high-voltage cable joint fireproof protection box; comprise: upper half box and lower half box are mutually spliced to form the space of a receiving high-voltage cable joint; the two ends of high-voltage cable joint connect power cable respectively, and the two ends of fireproof protection box are provided with the cable aperture coordinating power cable to pass；Upper half box comprises one first framework and the first rotation BAIYE, the first drive mechanism being arranged on the first framework, and the first drive mechanism is connected to the first rotation BAIYE by one first power transmission shaft；Lower half box comprises one second framework and the second rotation BAIYE, the second drive mechanism being arranged on the second framework, and the second drive mechanism is connected to the second rotation BAIYE by a second driving shaft；One explosion-proof temperature-moisture sensor, communicates to connect with the first drive mechanism and the second drive mechanism respectively；One explosion-proof pressure sensor, communicates to connect with the first drive mechanism and the second drive mechanism respectively.The present invention can be applicable to wet environment, meets cable connector cooling requirements.
Description
Technical field
The present invention relates to cable connector flameproof protection technical field, be specifically related to a kind of high-voltage cable joint flameproof protection
Box, it is adaptable to the flameproof protection in the intensive places of high voltage power cable such as cable tunnel, cable duct, cable interlayer.
Background technology
Cable fire is multiple to be born at cable connector.Cable intermediate joint is ring the weakest in safe operation of power system
Joint, the most thermally-induced electric discontinuity of cable of cable connector, short circuit, blast even cause the case of major accident of common occurrence.Certain cable
In in tunnel, 110kV cable connector is arranged on closed protecting box, protecting box is internal fills fire prevention calking, and cable connector dispels the heat not
Profit, when joint explosion accident occurs, energy discharges nowhere, and connector box moment pops, and initiation fire also fires and adjacent cable, causes
The supply network large area paralysis in city.
Many area Utilities Electric Co.s power cable to laying in electric power tunnel proposes new fire protection requirement: a road cable occurs
Problem can not prolong combustion, it is impossible to affects other with tunnel cabling.
Being in the cable tunnel of underground, cable duct and often ventilate unfavorable, environment is the moistest, for preventing cable connector to be subject to
Tide, often uses airtight protecting box to protect.For the electric power electricity of cable tunnel different layers installation with hanger in some engineer applied
Cable, arranges PLASTIC LAMINATED in the place having cable connector, by joint and upper and lower cable zone isolation.But airtight protecting box and envelope
The PLASTIC LAMINATED closed all is unfavorable for that cable connector dispels the heat, and is easily generated heat and assembles, is unfavorable for the operation safety of cable.
Summary of the invention
It is an object of the invention to provide a kind of high-voltage cable joint fireproof protection box, it is possible to be applicable to wet environment, full
Foot cable connector cooling requirements, and release energy when cable connector generation explosion accident, meet again a road electric power electricity simultaneously
Cable breaking out of fire or explosion time, do not prolong and fire the use requirement to other cables laid with tunnel.
In order to achieve the above object, the present invention is achieved through the following technical solutions: a kind of high-voltage cable joint flameproof protection
Box, is characterized in, comprises:
Upper half box and lower half box, described upper half box and lower half box are mutually spliced to form the sky of a receiving high-voltage cable joint
Between, the two ends of described high-voltage cable joint connect power cable respectively, and the two ends of fireproof protection box are provided with the described electric power of cooperation
The cable aperture that cable passes；
Described upper half box comprises one first framework and the first rotation BAIYE being arranged on described first framework, first drives
Motivation structure, the first described drive mechanism is connected to described first by one first power transmission shaft and rotates BAIYE；
Described lower half box comprises one second framework and the second rotation BAIYE being arranged on described second framework, second drives
Motivation structure, the second described drive mechanism is connected to described second by a second driving shaft and rotates BAIYE；
One explosion-proof temperature-moisture sensor, is arranged on described upper half box, described explosion-proof temperature-moisture sensor respectively with
Described first drive mechanism and the communication connection of the second drive mechanism；
One explosion-proof pressure sensor, is arranged on described upper half box and lower half box is mutually spliced to form a receiving high tension cable
In the space of joint, described explosion-proof pressure sensor respectively with described first drive mechanism and the second drive mechanism communication link
Connect.
Described cable aperture is by the upper cable aperture pillow being correspondingly arranged on described upper half box and lower half box and lower cable aperture pillow
Composition.
Gap between described cable aperture and power cable is filled with fire resistant flexible material.
Described upper half box and lower half box all have fire proofing material to make.
The bottom of described lower half box is provided with a pull-out type supporting plate, described pull-out type supporting plate is placed with and does not fires dehumidifying material
Material.
Fixed structure it is correspondingly arranged on respectively on described upper half box and lower half box.
Described fixed structure is included in the first connecting plate that described upper half cassette bottom portion extends to dual-side and under described
The second connecting plate that half box top extends to both sides, the first described connecting plate is corresponding with on the second connecting plate offers installation
Hole.
The first described drive mechanism and the second drive mechanism are supervised with cable fire monitoring system and cable connector the most respectively
Examining system communicates to connect, and receives cable fire monitoring system and the control signal of cable connector monitoring system.
The first described drive mechanism and the second drive mechanism communicate to connect with automatic fire alarm system the most respectively, Xiang Qi
Output linking fire control signal.
Described explosion-proof temperature-moisture sensor communicates to connect with environmental monitoring system, transmits its moisture signal.
One high-voltage cable joint fireproof protection box of the present invention compared with prior art has the advantage that owing to fire prevention is protected
Protect box and be provided with cable aperture, facilitate power cable to pass；Owing to being provided with explosion-proof temperature-moisture sensor, explosion-proof pressure sensor, turning
Dynamic BAIYE and drive mechanism thereof, it is simple to fireproof protection box endogenous cause of ill high-voltage cable joint is overheated cause temperature too high time, by opening
Open rotation BAIYE heat radiation, in order to avoid heat assembles initiation blast or fire in fireproof protection box；Fire is there is at high-voltage cable joint
During calamity, close and rotate BAIYE, form a closing space, stop the tongues of fire to be scurried out, carry out fire damping, prevent fire from prolonging combustion to adjacent
Cable, meets road power cable breaking out of fire or an explosion time, does not prolong and fires the use requirement to other cables laid with tunnel；
At cable connector generation explosion time, open and rotate BAIYE, it is provided that rush down pressure passageway and release energy, close in time after pressure release and rotate BAIYE
In order to avoid after Bao Zha during breaking out of fire, tongues of fire string goes out to prolong combustion to surrounding cables；When fireproof protection box humidity is too high, give notice
Signal is not so that dehumidifying material is fired in replacing in time；Due to drive mechanism and outside cable fire monitoring system and cable connector prison
Examining system communicates to connect, and after can receiving control signal linkage closedown moving blade and calamity, reset moving blade is to opening.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention a kind of high-voltage cable joint fireproof protection box；
Fig. 2 is the overall structure schematic diagram of upper half box；
Fig. 3 is the overall structure schematic diagram of lower half box；
Fig. 4 be lower half box top view；
Fig. 5 be lower half box side view.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
Such as Fig. 1, and combine shown in Fig. 2～Fig. 5, a kind of high-voltage cable joint fireproof protection box 10, comprise: upper half box 100
And lower half box 200, the structure of upper half box 100 and lower half box 200 is essentially identical, and described upper half box 100 and lower half box 200 are mutual
It is spliced to form the space of a receiving high-voltage cable joint 300, uses the mode being readily disassembled connection to assemble, it is simple to high tension cable connects
The installation of 300 and maintenance, the two ends of described high-voltage cable joint 300 connect power cable 400 respectively, fireproof protection box 10
Two ends are provided with the cable aperture coordinating described power cable 400 to pass；Described upper half box 100 comprise one first framework 101 and
First rotation BAIYE the 102, first drive mechanism 103 being arranged on described first framework 101, the first described drive mechanism
103 are connected to described first by one first power transmission shaft 104 rotates BAIYE 102；Described lower half box 200 comprises one second framework
201 and second rotation BAIYE the 202, second drive mechanism 203 of being arranged on described second framework 201, described second driving
Mechanism 203 is connected to described second by a second driving shaft 204 and rotates BAIYE 202；One explosion-proof temperature-moisture sensor 106, if
Put on described upper half box 100, described explosion-proof temperature-moisture sensor 106 respectively with described first drive mechanism 103 and
Two drive mechanisms 203 communicate to connect；One explosion-proof pressure sensor, is arranged on described upper half box 100 and lower half box 200 is mutually spelled
Connecing in the space forming a receiving high-voltage cable joint 300, described explosion-proof pressure sensor drives machine with described first respectively
Structure 103 and the second drive mechanism 203 communicate to connect, and are used for detecting fireproof protection box internal gas pressure.
In the present embodiment, it is preferred that be respectively provided with in the first drive mechanism 103 and the second drive mechanism 203 and monitor back
Road, in the temperature signal real-time unit of account time fireproof protection box of Real-time Collection explosion-proof temperature-moisture sensor 106
The temperature difference, setting unit time difference variation threshold value, according to the real time data of temperature signal and the unit interval temperature difference and difference variation
Severe degree judge the malfunction of high-voltgae pothead: overheated, fire, blast, and thus control the first rotation BAIYE 102 He
Second keying rotating BAIYE 202.
In the present embodiment, it is preferred that the first rotation BAIYE 102 and the second rotation BAIYE 202 are normally off, according to anti-
Humiture in fire protecting box 10, cable connector fire, the different conditions requirement such as blast, respectively the with drive mechanism 103 He
It is turned on and off under the control of the second drive mechanism 203；Explosion-proof temperature-moisture sensor 106 is arranged on the first frame of upper half box 100
The middle part at the top of frame 101, explosion-proof pressure sensor is arranged in a certain drift angle of the first framework 101 of upper half box 100,
In any one in four drift angles as shown in Figure 2, or the position that during other elongnated building, gas shock impact is less.
In a preferred embodiment of the invention, it is considered to engineering actual medium and high voltage cable joint all has insulating barrier and sheath, high pressure
The process or this process that raise rapidly in before cable connector blast, in fireproof protection box, temperature may not have the short time are held
The continuous time is too short, causes first, second drive mechanism to have little time action, in such cases explosion-proof temperature-moisture sensor and high-tension electricity
Cable joint contact is arranged, such as, be arranged on the top of high-voltage cable joint.
In other embodiments of the invention, can be when high-voltage cable joint processing and fabricating, exhausted at high-voltage cable joint
In edge layer or it is close to core between insulating barrier and oversheath and explosion-proof temperature-moisture sensor is set, if cable connector monitoring system is arranged
And collecting temperature signal, then anti-explosion temperature sensor can be set, directly cable connector is monitored the temperature signal of system
Transmission is to first, second drive mechanism.
In the present embodiment, as shown in Figures 2 and 3, it is preferred that described cable aperture is by being correspondingly arranged at described upper half box
100 and lower half box 200 on upper cable aperture pillow 105 and lower cable aperture pillow 205 composition.
In the present embodiment, as it is shown in figure 1, it is preferred that the gap between described cable aperture and power cable 400 is filled
There is fire resistant flexible material 500；Preferably, described upper half box 100 and lower half box 200 all have fire proofing material to make, fire proofing material
And specification need to be adapted to the fire endurance of field of employment.
In the present embodiment, as depicted in figs. 3 and 5, it is preferred that the bottom of described lower half box 200 is provided with a pull-out type
Supporting plate 206, described pull-out type supporting plate 206 is placed with and does not fires dehumidifying material 600.
In the present embodiment, as shown in Figures 2 and 3, it is preferred that the most right on described upper half box 100 and lower half box 200
Fixed structure should be provided with；Preferably, described fixed structure is included in the extended bottom described upper half box 100 to dual-side
A plate 107 and the second connecting plate 207 extended to both sides at described lower half box 200 top, the first described connecting plate 107
Corresponding with on the second connecting plate 207 offer installing hole (1071,2071).
In the present embodiment, it is preferred that the first described drive mechanism 103 and the second drive mechanism 203 the most respectively with electricity
Cable fire hazard monitoring system and cable connector monitoring system communication connection, receive cable fire monitoring system and system monitored by cable connector
The control signal of system；Preferably, described explosion-proof temperature-moisture sensor 106 communicates to connect with environmental monitoring system, transmits it wet
Degree signal；The first described drive mechanism 103 and the second drive mechanism 203 the most respectively with automatic fire alarm system communication link
Connect, transmit its temperature signal.
Specifically, in the present embodiment, first, second rotation BAIYE is in normally off, when monitoring fireproof protection box
When interior temperature exceeds the first setting threshold value, it is judged that for temperature overheating in fireproof protection box, then first, second drive mechanism is respectively
First, second rotation BAIYE is driven to open.When the temperature monitored in fireproof protection box exceeds the second setting threshold value, and unit
Time difference variation the most persistently rises, it is judged that for breaking out of fire in fireproof protection box, and to automatic fire alarm
System sends signal, to judge whether to enable automatic fire extinguisher, if now first, second rotation BAIYE is in the open position,
Then first, second drive mechanism drives first, second rotation BAIYE to close respectively；If now first, second rotation BAIYE is in
Closed position, then first, second drive mechanism is failure to actuate.Temperature in monitoring fireproof protection box exceeds the 3rd setting threshold value
Time, and unit interval difference variation rises rapidly within the of short duration time, it is judged that for there being the danger that blast occurs in fireproof protection box,
If now first, second rotation BAIYE is in the open position, then first, second drive mechanism is failure to actuate；If now first, second
Rotation BAIYE is in the closed position, then first, second drive mechanism drives first, second rotation BAIYE to open respectively, discharges energy
Amount, after pressure declines in explosion-proof pressure Sensor monitoring to fireproof protection box, then sends control to first, second drive mechanism
Signal, to close first, second rotation BAIYE.
It addition, when the humidity of fireproof protection box is higher than when presetting humidity, then send prompting changing not to environmental monitoring system
The signal of combustion dehumidifying material；When cable fire monitoring system and cable connector monitoring system monitoring have fire in fireproof protection box
During generation, then send control instruction to drive mechanism, close and rotate BAIYE, make fireproof protection box form a closing space, stop
The tongues of fire are scurried out, and carry out fire damping, prevent fire from prolonging and fire to adjacent cable, meet road power cable breaking out of fire or a blast
Time, do not prolong and fire the use requirement to other cables laid with tunnel；When cable fire monitoring system and cable connector monitoring are
System monitors adjacent cable when having fire to occur, then send control instruction to drive mechanism, close rotation BAIYE, make flameproof protection
Box-like becomes a closing space, prevents fire from prolonging combustion to this fireproof protection box；When fire alarm signal releases, cable fire can be passed through
Monitoring system or cable connector monitoring system monitoring, then send control instruction to drive mechanism, open and rotate BAIYE.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read foregoing, for the present invention's
Multiple amendment and replacement all will be apparent from.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a high-voltage cable joint fireproof protection box, it is characterised in that comprise:
Upper half box and lower half box, described upper half box and lower half box be mutually spliced to form the space of a receiving high-voltage cable joint,
The two ends of described high-voltage cable joint connect power cable respectively, and the two ends of fireproof protection box are provided with the described power cable of cooperation
The cable aperture passed；
Described upper half box comprises one first framework and the first rotation BAIYE, the first driving machine being arranged on described first framework
Structure, the first described drive mechanism is connected to described first by one first power transmission shaft and rotates BAIYE；
Described lower half box comprises one second framework and the second rotation BAIYE, the second driving machine being arranged on described second framework
Structure, the second described drive mechanism is connected to described second by a second driving shaft and rotates BAIYE；
One explosion-proof temperature-moisture sensor, is arranged on described upper half box, and described explosion-proof temperature-moisture sensor is respectively with described
First drive mechanism and the communication connection of the second drive mechanism；
One explosion-proof pressure sensor, is arranged on described upper half box and lower half box is mutually spliced to form a receiving high-voltage cable joint
Space in, described explosion-proof pressure sensor communicates to connect with described first drive mechanism and the second drive mechanism respectively.
2. high-voltage cable joint fireproof protection box as claimed in claim 1, it is characterised in that
Described cable aperture is made up of the upper cable aperture pillow being correspondingly arranged on described upper half box and lower half box and lower cable aperture pillow.
3. high-voltage cable joint fireproof protection box as claimed in claim 1 or 2, it is characterised in that
Gap between described cable aperture and power cable is filled with fire resistant flexible material.
4. high-voltage cable joint fireproof protection box as claimed in claim 1, it is characterised in that
Described upper half box and lower half box all have fire proofing material to make.
5. high-voltage cable joint fireproof protection box as claimed in claim 1, it is characterised in that
The bottom of described lower half box is provided with a pull-out type supporting plate, described pull-out type supporting plate is placed with and does not fires dehumidifying material.
6. high-voltage cable joint fireproof protection box as claimed in claim 1, it is characterised in that
Fixed structure it is correspondingly arranged on respectively on described upper half box and lower half box.
7. high-voltage cable joint fireproof protection box as claimed in claim 6, it is characterised in that
Described fixed structure is included in the first connecting plate that described upper half cassette bottom portion extends to dual-side and at described lower half box
The second connecting plate that top extends to both sides, the first described connecting plate is corresponding with on the second connecting plate offers installing hole.
8. high-voltage cable joint fireproof protection box as claimed in claim 1, it is characterised in that
The first described drive mechanism and the second drive mechanism with cable fire monitoring system and cable connector monitoring are the most respectively
System communication connection, receives cable fire monitoring system and the control signal of cable connector monitoring system.
9. high-voltage cable joint fireproof protection box as claimed in claim 1, it is characterised in that
The first described drive mechanism and the second drive mechanism communicate to connect with automatic fire alarm system the most respectively, export to it
Linking fire control signal.
10. high-voltage cable joint fireproof protection box as claimed in claim 1, it is characterised in that
Described explosion-proof temperature-moisture sensor communicates to connect with environmental monitoring system, transmits its moisture signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610687110.9A CN106229935A (en) | 2016-08-18 | 2016-08-18 | A kind of high-voltage cable joint fireproof protection box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610687110.9A CN106229935A (en) | 2016-08-18 | 2016-08-18 | A kind of high-voltage cable joint fireproof protection box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106229935A true CN106229935A (en) | 2016-12-14 |
Family
ID=57553859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610687110.9A Pending CN106229935A (en) | 2016-08-18 | 2016-08-18 | A kind of high-voltage cable joint fireproof protection box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106229935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398791A (en) * | 2019-07-15 | 2019-11-01 | 中国气象局气象探测中心 | A kind of intelligent base measuring tank of achievable self diagnosis |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201563042U (en) * | 2009-11-05 | 2010-08-25 | 无锡哈电电机有限公司 | Special high-power pressurized variable frequency speed regulation asynchronous motor for top drive |
| CN201699384U (en) * | 2010-06-13 | 2011-01-05 | 上海市政工程设计研究总院 | Protective device used for cable joint |
| CN202384203U (en) * | 2012-01-04 | 2012-08-15 | 启东市爱普电器有限公司 | Electromagnetic power switch assembly |
| DE202013004852U1 (en) * | 2013-05-27 | 2013-08-08 | Artellus UG (haftungsbeschränkt) | Spatially swiveling socket holder with sensory detection, remote unlocking and shaft information system |
| CN203645288U (en) * | 2013-11-11 | 2014-06-11 | 中兴通讯股份有限公司 | Cable joint protection box |
| 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 |
| CN204790614U (en) * | 2015-06-26 | 2015-11-18 | 罗熳地 | 10KV cable run connects except that damp detection device |
| CN205213196U (en) * | 2015-12-10 | 2016-05-04 | 朱森 | Fire control electrical equipment box |
| CN206060155U (en) * | 2016-08-18 | 2017-03-29 | 上海市政工程设计研究总院（集团）有限公司 | A kind of high-voltage cable joint fireproof protection box |
-
2016
- 2016-08-18 CN CN201610687110.9A patent/CN106229935A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201563042U (en) * | 2009-11-05 | 2010-08-25 | 无锡哈电电机有限公司 | Special high-power pressurized variable frequency speed regulation asynchronous motor for top drive |
| CN201699384U (en) * | 2010-06-13 | 2011-01-05 | 上海市政工程设计研究总院 | Protective device used for cable joint |
| CN202384203U (en) * | 2012-01-04 | 2012-08-15 | 启东市爱普电器有限公司 | Electromagnetic power switch assembly |
| DE202013004852U1 (en) * | 2013-05-27 | 2013-08-08 | Artellus UG (haftungsbeschränkt) | Spatially swiveling socket holder with sensory detection, remote unlocking and shaft information system |
| CN203645288U (en) * | 2013-11-11 | 2014-06-11 | 中兴通讯股份有限公司 | Cable joint protection box |
| 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 |
| CN204790614U (en) * | 2015-06-26 | 2015-11-18 | 罗熳地 | 10KV cable run connects except that damp detection device |
| CN205213196U (en) * | 2015-12-10 | 2016-05-04 | 朱森 | Fire control electrical equipment box |
| CN206060155U (en) * | 2016-08-18 | 2017-03-29 | 上海市政工程设计研究总院（集团）有限公司 | A kind of high-voltage cable joint fireproof protection box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398791A (en) * | 2019-07-15 | 2019-11-01 | 中国气象局气象探测中心 | A kind of intelligent base measuring tank of achievable self diagnosis |
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