CN104134956A

CN104134956A - Fireproof cable sleeve

Info

Publication number: CN104134956A
Application number: CN201410405579.XA
Authority: CN
Inventors: 薛双勋; 蔡战清
Original assignee: Xiuwu Electric Co; State Grid Corp of China SGCC
Current assignee: Xiuwu Electric Co; State Grid Corp of China SGCC
Priority date: 2014-08-18
Filing date: 2014-08-18
Publication date: 2014-11-05
Anticipated expiration: 2034-08-18
Also published as: CN104134956B

Abstract

The invention discloses a fireproof cable sleeve. The fireproof cable sleeve is composed of a cable bushing, a connection sleeve, a sealing plug and a broken cable alarming system. The cable bushing is composed of at least two sections of cable passing pipes which are connected through the connection sleeve. The connection sleeve is composed of a pipe wall and a baffle, the cable passing pipes are of a hollow tubular structure, the pipe wall is composed of an outer insulation wall and an inner hot melting wall, and the outer insulation wall and the inner hot melting wall are connected through rib plates to form a fireproof cavity. The broken cable alarming system is composed of a power source, a switch, a buzzer, an early warning wire and an adjusting resistor, and the early warning wire is embedded into the inner hot melting wall and surrounds the inner hot melting wall. On one hand, the cable ignition accident can be effectively eliminated in time and an alarm is given out in time, so that the risk that a cable triggers a fire is reduced greatly; on the other hand, the situation that after one cable breaks down and causes a fire, adjacent cables are damaged is effectively and completely eradicated, the fire damage is reduced greatly, the restoration cost needed after a disaster happens is saved largely, the restoration time spent after a disaster happens is shortened, and the efficiency for eliminating the fire accident is improved.

Description

A kind of cable fire-proof sleeve pipe

Technical field

The present invention relates to a kind of cable fire-proof sleeve pipe, belong to power cable and lay safeguard field.

Background technology

At present at power cable, in the laying of the multiple cable such as communication cable, often need many cables directly to concentrate in together and carry out intensive laying, or need as the embeddings such as electric power cable and building as inner etc. are arranged, especially in the environment such as switchgear house, often many electric power cables need to be arranged in the small space that cable is enough closely, or at the sleeve pipe of electric power cable outer cladding one deck PVC material, and this sleeve pipe lacks high temperature resistivity and putting out and alert capability fire, therefore in the time of breaking out of fire or certain root cable anyway fault on fire after, because electric power cable is arranged intensive or is embedded in the interior of articles such as building, cannot the very first time find disaster hidden-trouble, more cannot process point of origin in the very first time, therefore, very easily cause that electric power cable large area is on fire burns, and easily cause electric shock accidents, also very easily feed through to the power cable that closes on normal operation simultaneously, from but accident infringement expand, cause the great wasting of resources, and need to drop into more manpower and materials and dean consuming time in recovering after calamity, therefore the present electric power cable equipment of arranging cannot effectively prevent and protect cable fire, give safety utilization of electric power, power circuit construction and security of operation have caused serious security threat.

Summary of the invention

The object of the invention is just to overcome above-mentioned deficiency, and a kind of cable fire-proof sleeve pipe is provided.

For achieving the above object, the present invention is achieved through the following technical solutions:

A kind of cable fire-proof sleeve pipe, by wire bushing, adapter sleeve, seal plug and broken line warning system form, described wire bushing is made up of at least two joint wire-passing tubes, and connect by adapter sleeve between wire-passing tube, described adapter sleeve is made up of tube wall and baffle plate, wherein tube wall and baffle plate are that integral type structure and axial cross section are " H " type, wherein on baffle plate, separately establish cable-through hole, described wire-passing tube is hollow tubular structures, described tube wall is by the outer wall that insulate, hot melt inwall forms, the spacing between outer wall and hot melt inwall that wherein insulate is not less than 1 centimetre, and by link of boards and form fire prevention chamber, described fire prevention chamber is along the parallel distribution of wire-passing tube axis direction, in described fire prevention chamber, fill extinguishing chemical, between described wire-passing tube two ends place insulation outer wall and hot melt inwall, sealed by seal plug, described wire-passing tube is separately established elastic protecting sleeve outward, described broken line warning system is by power supply, switch, buzzer, early warning electric wire and adjusting resistance form, described early warning electric wire is in parallel with buzzer after connecting with adjusting resistance, then be connected with power supply by switch, wherein said early warning electric wire is separately embedded in hot melt inwall and is around distribution, described power supply, switch, buzzer and adjusting resistance are all placed in establishes elastic protecting sleeve outside.

Adapter sleeve material is rubber or hard PVC section bar.

Plug is hard PVC section bar.

Extinguishing chemical is dry ice, fire foam, powder extinguishing agent or sand.

Buzzer is acousto-optic integrated buzzer.

One aspect of the present invention can ignition of cable accident be put out and report to the police effectively and timely, thereby reduce greatly cable initiation fire risk, improve Electrical Safety performance, also effectively stopped after a cable fault breaking out of fire simultaneously to its close on cable harm, greatly improve the security of operation of transmission line, and greatly reduce damage by fire, and recover cost and shortened the time of replying after calamity after having saved a large amount of calamities, improve fire incident and got rid of efficiency.

Brief description of the drawings

Fig. 1 is that the present invention assembles rear schematic diagram;

Fig. 2 is broken line warning system circuit theory diagrams.

Embodiment

As shown in Fig. 1 and 2, a kind of cable fire-proof sleeve pipe, by wire bushing, adapter sleeve, seal plug 1 and broken line warning system form, described wire bushing is made up of at least two joint wire-passing tubes, and connect by adapter sleeve between wire-passing tube, described adapter sleeve is made up of tube wall 2 and baffle plate 3, wherein tube wall 2 and baffle plate 3 are that integral type structure and axial cross section are " H " type, wherein on baffle plate 3, separately establish cable-through hole 4, described wire-passing tube is hollow tubular structures, described tube wall is by the outer wall 5 that insulate, hot melt inwall 6 forms, 6 spacing between outer wall 5 and hot melt inwall that wherein insulate are not less than 1 centimetre, and by gusset 7 connect and form fire prevention chamber 8, described fire prevention chamber 8 is along the parallel distribution of wire-passing tube axis direction, the interior filling extinguishing chemical 9 in described fire prevention chamber 8, between described wire-passing tube two ends place insulation outer wall 5 and hot melt inwall 6, sealed by seal plug 1, described wire-passing tube is separately established elastic protecting sleeve 10 outward, described broken line warning system is by power supply 11, switch 12, buzzer 13, early warning electric wire 14 and adjusting resistance 15 form, described early warning electric wire 14 is in parallel with buzzer 13 after connecting with adjusting resistance 15, then be connected with power supply 11 by switch 12, wherein said early warning electric wire 14 is separately embedded in hot melt inwall 6 and is around distribution, described power supply 11, switch 12, buzzer 13 and adjusting resistance 15 are all placed in establishes elastic protecting sleeve 10 outsides.

Claims

1. a cable fire-proof sleeve pipe, it is characterized in that: by wire bushing, adapter sleeve, seal plug and broken line warning system form, described wire bushing is made up of at least two joint wire-passing tubes, and connect by adapter sleeve between wire-passing tube, described adapter sleeve is made up of tube wall and baffle plate, wherein tube wall and baffle plate are that integral type structure and axial cross section are " H " type, wherein on baffle plate, separately establish cable-through hole, described wire-passing tube is hollow tubular structures, described tube wall is by the outer wall that insulate, hot melt inwall forms, the spacing between outer wall and hot melt inwall that wherein insulate is not less than 1 centimetre, and by link of boards and form fire prevention chamber, described fire prevention chamber is along the parallel distribution of wire-passing tube axis direction, in described fire prevention chamber, fill extinguishing chemical, between described wire-passing tube two ends place insulation outer wall and hot melt inwall, sealed by seal plug, described wire-passing tube is separately established elastic protecting sleeve outward, described broken line warning system is by power supply, switch, buzzer, early warning electric wire and adjusting resistance form, described early warning electric wire is in parallel with buzzer after connecting with adjusting resistance, then be connected with power supply by switch, wherein said early warning electric wire is separately embedded in hot melt inwall and is around distribution, described power supply, switch, buzzer and adjusting resistance are all placed in establishes elastic protecting sleeve outside.

2. a kind of cable fire-proof sleeve pipe according to claim 1, is characterized in that: described adapter sleeve material is rubber or hard PVC section bar.

3. a kind of cable fire-proof sleeve pipe according to claim 1, is characterized in that: described plug is hard PVC section bar.

4. a kind of cable fire-proof sleeve pipe according to claim 1, is characterized in that: described extinguishing chemical is dry ice, fire foam, powder extinguishing agent or sand.

5. a kind of cable fire-proof sleeve pipe according to claim 1, is characterized in that: described buzzer is acousto-optic integrated buzzer.