CN214626322U - Explosion-proof box of cable joint - Google Patents

Explosion-proof box of cable joint Download PDF

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Publication number
CN214626322U
CN214626322U CN202120889604.1U CN202120889604U CN214626322U CN 214626322 U CN214626322 U CN 214626322U CN 202120889604 U CN202120889604 U CN 202120889604U CN 214626322 U CN214626322 U CN 214626322U
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CN
China
Prior art keywords
upper cover
fire
injection pipe
retardant
cable
Prior art date
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Active
Application number
CN202120889604.1U
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Chinese (zh)
Inventor
郝建园
张跃勇
张郅业
李丰硕
孙华忠
葛亮
文向东
陈允营
彭鹏
郭红军
刘帅
杨茂波
刘静
赵爽
刘晓
刘琴
徐子华
王斐凯
公政
张吉春
李霖
钟贵森
王永锐
类金
王鑫
周轮
王洪林
孔令京
王环
张洪波
陈复东
刘序坤
王建刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Qingdao Power Supply Co of State Grid Shandong Electric Power Co Ltd
Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Qingdao Power Supply Co of State Grid Shandong Electric Power Co Ltd
Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by State Grid Corp of China SGCC, Qingdao Power Supply Co of State Grid Shandong Electric Power Co Ltd, Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202120889604.1U priority Critical patent/CN214626322U/en
Application granted granted Critical
Publication of CN214626322U publication Critical patent/CN214626322U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a cable joint explosion-proof box, which comprises an upper cover and a lower cover spliced with the upper cover, wherein the spliced part of the upper cover and the lower cover is provided with a magnetic absorption layer; the fire-retardant chamber of upper cover top portion being equipped with, fire-retardant intracavity is equipped with fire retardant storage jar, is equipped with the injection pipe on the fire retardant storage jar, is equipped with the shower nozzle in the upper cover, and the one end and the fire retardant storage jar intercommunication of injection pipe, the other end and the shower nozzle intercommunication of injection pipe are equipped with the solenoid valve on the injection pipe. The utility model discloses simple to operate can real time monitoring cable joint department's operation conditions, realizes the early warning and the quick location of accident to possess automatic fire-retardant function, have outstanding fire prevention and fire control effect.

Description

Explosion-proof box of cable joint
Technical Field
The utility model relates to a cable protection technical field, more specifically the utility model relates to an explosion-proof box of cable joint that says so.
Background
Power plant, transformer substation and industrial and mining enterprises all use power cable in a large number, in case the cable is fired and explodes, will arouse serious conflagration and power failure accident, in addition, the cable burning produces a large amount of dense smoke and toxic gas, not only pollutes the environment, endangers people's life safety moreover.
Statistics shows that a large number of fire and explosion of the cable occur at the joint of the cable, and along with the continuous increase of cable lines, the probability of accidents caused by the fault of the cable joint is also continuously increased. After the cable runs for a long time, phenomena such as insulation aging, running overload and the like inevitably occur, particularly, the problem of water accumulation in a cable tunnel generally exists for a long time, and once a cable joint is wetted, the cable is easy to break down to cause fire explosion.
Currently, for the safety of cable joints, although a cable explosion-proof box has been used for protection, the flame retardant effect of the commonly used cable explosion-proof box is not good. In addition, due to the restriction of the operation environment of the cable, the safety inspection of the cable joint is inconvenient to carry out frequently, the operation condition of the cable joint cannot be monitored in real time, and the early warning and the quick positioning of accidents are realized.
SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the utility model is to provide an explosion-proof box of cable joint.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme: an explosion-proof box for a cable joint comprises an upper cover and a lower cover spliced with the upper cover, wherein a magnetic absorption layer is arranged at the spliced part of the upper cover and the lower cover; the fire-retardant chamber of upper cover top portion being equipped with, fire-retardant intracavity is equipped with fire retardant storage jar, is equipped with the injection pipe on the fire retardant storage jar, is equipped with the shower nozzle in the upper cover, and the first end and the fire retardant storage jar intercommunication of injection pipe, the second end and the shower nozzle intercommunication of injection pipe are equipped with the solenoid valve on the injection pipe. The upper cover and the lower cover are fixed by magnetic attraction, so that the installation is convenient, and the glue can be directly filled and sealed after the attraction is in place. The upper cover is internally provided with the flame retardant, so that the flame retardant can be released when the ignition point of the internal cable appears, and the flame retardant property of the explosion-proof box is effectively improved.
Further, still be equipped with the main control unit in the fire-retardant intracavity, the main control unit includes control module, power module and wireless communication module, and control module is connected with power module, wireless communication module and solenoid valve respectively. The automatic control and remote data transmission of the electromagnetic valve are realized through the main control unit.
Furthermore, a temperature sensor is arranged in the upper cover, a humidity sensor is arranged in the lower cover, and the control module is connected with the temperature sensor and the humidity sensor respectively. The temperature and humidity monitoring of the inner part of the explosion-proof box after the installation is finished is realized, and the remote real-time monitoring of the running condition of the cable joint is realized through wireless transmission.
Furthermore, the top of the upper cover is provided with an energy release hole. When the cable middle joint is in short circuit breakdown or explosion, the impact force of explosion can be effectively reduced.
Furthermore, hydrophobic silica gel sealing layers are arranged at the two ends of the upper cover and the lower cover. The sealing performance of the whole explosion-proof box is improved.
Furthermore, a metal hoop used for locking the cable is arranged in the lower cover. Can be fixed cable joint in the lower cover, improved the convenience of installation.
Further, the magnetic attraction layer adopts a magnetic powder and silica gel mixing layer. After the upper cover and the lower cover are attracted and spliced, the tightness of the spliced part reaches the standard of preventing moisture from entering.
Contrast prior art, the utility model discloses beneficial effect lies in: the utility model provides an explosion-proof box of cable joint has adopted the mounting means of magnetism concatenation, simple to operate. Be equipped with temperature sensor and humidity transducer in, can real-time detection cable joint's humiture state to send the remote monitoring end through wireless network, can pass through the early warning measure in advance before the occurence of failure, the very first time reports electric power maintainer and overhauls the position, provides safety guarantee and quality guarantee for electric power staff's work. In addition, a fire retardant storage tank is arranged in the upper cover, and the automatic control of fire retardant release is realized through the control unit. In the use, when cable joint explodes or the temperature is too high, can release the fire retardant automatically, can carry out fire-retardant the very first time, have outstanding fire prevention and fire extinguishing effect.
Therefore, compared with the prior art, the utility model has the substantive characteristics and the progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is an electrical block diagram of the present invention.
In the drawings, each reference numeral denotes:
1. an upper cover; 2. a lower cover; 3. a flame retardant cavity; 4. a fire retardant storage tank; 5. an injection pipe; 6. a spray head; 7. an electromagnetic valve; 8. a temperature sensor; 9. a humidity sensor; 10. a magnetic absorption layer; 11. a vent hole; 12. hydrophobic silica gel sealing layer; 13. a metal hoop; 31. a main control unit; 32. a control module; 33. a power supply module; 34. and a wireless communication module.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
The explosion-proof box for the cable joint shown in fig. 1-2 comprises an upper cover 1 and a lower cover 2 spliced with the upper cover 1, wherein a magnetic absorption layer 10 is arranged at the splicing part of the upper cover 1 and the lower cover 2, and the magnetic absorption layer 10 adopts a magnetic powder and silica gel mixed layer. The two ends of the upper cover 1 and the lower cover 2 are both provided with hydrophobic silica gel sealing layers 12.
The top of the upper cover 1 is provided with a flame-retardant cavity 3 and an energy release hole 11, and a temperature sensor 8 is arranged in the upper cover 1. Be equipped with fire retardant storage jar 4 in fire-retardant chamber 3, be equipped with injection pipe 5 on the fire retardant storage jar 4, be equipped with shower nozzle 6 in the upper cover 1, the first end and the fire retardant storage jar 4 intercommunication of injection pipe 5, the second end and the shower nozzle 6 intercommunication of injection pipe 5 are equipped with solenoid valve 7 on the injection pipe 5. A humidity sensor 9 and a metal clamp 13 for locking the cable are arranged in the lower cover 2.
In addition, still be equipped with the main control unit in fire-retardant chamber 3, as shown in fig. 3, the main control unit includes control module, power module and wireless communication module, and control module is connected with power module, wireless communication module, solenoid valve, temperature sensor and humidity transducer respectively.
During the use, arrange cable joint in the lower cover to use the metal clamp to fix, with upper cover and lower cover along splice part actuation and carry out the connection of electrical component, the actuation targets in place the back, carries out the encapsulating and seals, accomplishes the installation. After the installation is finished, the temperature sensor and the humidity sensor send temperature and humidity data to the control module in real time, the control module sends the data to the remote monitoring end through a wireless network, and when the temperature data exceeds a preset threshold value, the control module determines that the temperature of a cable insulating layer and a protective layer of a cable joint is too high at the moment and is in an ignition state, immediately sends a control signal to the electromagnetic valve, and releases a flame retardant for flame retardance; meanwhile, the alarm is given to the remote monitoring end through a wireless network.
The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

Claims (7)

1. The cable joint explosion-proof box is characterized by comprising an upper cover (1) and a lower cover (2) spliced with the upper cover (1), wherein a magnetic absorption layer (10) is arranged at the spliced part of the upper cover (1) and the lower cover (2); the top of the upper cover (1) is provided with a flame-retardant cavity (3), a flame retardant storage tank (4) is arranged in the flame-retardant cavity (3), an injection pipe (5) is arranged on the flame retardant storage tank (4), a spray head (6) is arranged in the upper cover (1), the first end of the injection pipe (5) is communicated with the flame retardant storage tank (4), the second end of the injection pipe (5) is communicated with the spray head (6), and an electromagnetic valve (7) is arranged on the injection pipe (5).
2. The cable splice explosion proof enclosure of claim 1, wherein: still be equipped with main control unit (31) in fire-retardant chamber (3), main control unit (31) include control module (32), power module (33) and wireless communication module (34), and control module (32) are connected with power module (33), wireless communication module (34) and solenoid valve (7) respectively.
3. The cable splice explosion proof enclosure of claim 1, wherein: be equipped with temperature sensor (8) in upper cover (1), be equipped with humidity transducer (9) in lower cover (2), control module (32) are connected with temperature sensor (8) and humidity transducer (9) respectively.
4. The cable splice explosion proof enclosure of claim 1, wherein: the top of the upper cover (1) is provided with an energy release hole (11).
5. The cable splice explosion proof enclosure of claim 1, wherein: two ends of the upper cover (1) and the lower cover (2) are respectively provided with a hydrophobic silica gel sealing layer (12).
6. The cable splice explosion proof enclosure of claim 1, wherein: and a metal hoop (13) for locking the cable is arranged in the lower cover (2).
7. The cable splice explosion proof enclosure of claim 1, wherein: the magnetic absorption layer (10) adopts a magnetic powder silica gel mixed layer.
CN202120889604.1U 2021-04-27 2021-04-27 Explosion-proof box of cable joint Active CN214626322U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120889604.1U CN214626322U (en) 2021-04-27 2021-04-27 Explosion-proof box of cable joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120889604.1U CN214626322U (en) 2021-04-27 2021-04-27 Explosion-proof box of cable joint

Publications (1)

Publication Number Publication Date
CN214626322U true CN214626322U (en) 2021-11-05

Family

ID=78405686

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120889604.1U Active CN214626322U (en) 2021-04-27 2021-04-27 Explosion-proof box of cable joint

Country Status (1)

Country Link
CN (1) CN214626322U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114865578A (en) * 2022-05-16 2022-08-05 广东电网有限责任公司东莞供电局 Intelligent cable joint explosion-proof equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114865578A (en) * 2022-05-16 2022-08-05 广东电网有限责任公司东莞供电局 Intelligent cable joint explosion-proof equipment

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