CN204632396U - Multicore flame retardant cable - Google Patents
Multicore flame retardant cable Download PDFInfo
- Publication number
- CN204632396U CN204632396U CN201520316968.5U CN201520316968U CN204632396U CN 204632396 U CN204632396 U CN 204632396U CN 201520316968 U CN201520316968 U CN 201520316968U CN 204632396 U CN204632396 U CN 204632396U
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- Prior art keywords
- separator
- helical spacer
- spacer pipe
- fireproof
- flame retardant
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Abstract
The utility model belongs to power cable and lays safeguard technical field, especially relates to a kind of multicore flame retardant cable.This multicore flame retardant cable comprises some circular cable cores, be provided with outside circular cable core and tighten layer, the outside of tightening layer is provided with separator, separator overcoat has fireproof casing, annular space is provided with between fireproof casing and separator, separator is provided with helical spacer pipe, annular space is separated into some spiral spaces by helical spacer pipe, the first fireproof agent is provided with in spiral space, the second fireproof agent is provided with in helical spacer pipe, fireproof casing is provided with the first inlet be connected with spiral space, separator has the first liquid outlet be connected with spiral space, fireproof casing is provided with the second inlet and the second liquid outlet that are connected with helical spacer tube cavity, separator is evenly provided with flow export, flow export is coated with the first molten sheet, the fusing point of the first molten sheet is lower than the fusing point of helical spacer pipe.Advantage is: reasonable in design, and structure is simple.
Description
Technical field
The utility model belongs to power cable and lays safeguard technical field, especially relates to a kind of multicore flame retardant cable.
Background technology
Along with taking place frequently of fire incident, people constantly deepen electric wire fire risk understanding, and the requirement of relevant department to performances such as electric wire fire protection flame retardings is also more and more higher.Features such as spreading fast, difficulty of putting out a fire to save life and property because cable fire has, produce secondary harm, recovery time is long can bring huge loss to the lives and properties of national economy and the people.And electric wire of the prior art does not have fire protection flame retarding function, namely can not stop the generation of fire, just automatically can not have fire, avoid the generation of fire in time when point of origin appears in electric wire, global design is reasonable not enough, poor practicability.
In order to improve prior art, people have carried out long-term exploration, propose various solution.Such as, Chinese patent literature discloses a kind of multicore flame resistant cable [application number: CN201420719076.5], comprises by being at least three stranded formed circular cable cores of the fan-shaped insulated wire cores of segmentation; Be outside equipped with at cable core and tighten layer; Described fan-shaped insulated wire cores is made up of round conductor, the fan-shaped insulating barrier be extruded in outside round conductor.
Although such scheme to some extent solves the deficiencies in the prior art, just automatically can not have fire, avoid the generation of fire in time when point of origin appears in electric wire, global design is reasonable not enough, poor practicability.
Utility model content
The purpose of this utility model is for the problems referred to above, provides a kind of reasonable in design, the simple multicore flame retardant cable of structure.
For achieving the above object, the utility model have employed following technical proposal: this multicore flame retardant cable, it is characterized in that, comprise some mutually stranded circular cable cores, be provided with outside described circular cable core circular cable core can be made to press together tighten layer, the described outside of tightening layer is provided with the separator be made up of fire proofing material, described separator overcoat has fireproof casing, annular space is provided with between described fireproof casing and separator, described separator is provided with the helical spacer pipe around separator Spiral distribution, annular space is separated into some spiral spaces by described helical spacer pipe, the first fireproof agent is provided with in described spiral space, the second fireproof agent is provided with in described helical spacer pipe, described fireproof casing is provided with the first inlet be connected with spiral space, described separator has the first liquid outlet be connected with spiral space, described fireproof casing is provided with the second inlet and the second liquid outlet that are connected with helical spacer tube cavity, described separator is evenly provided with the flow export be connected with spiral space, described flow export is coated with the first molten sheet, the fusing point of the first described molten sheet is lower than the fusing point of helical spacer pipe.When fire does not occur, separator is made up of fire proofing, has fire-retardant effect, prevents the generation of fire; When cable is on fire, the first molten sheet melting on separator, the first fireproof agent in spiral space is put out a fire to point of origin, the generation of fire can be avoided in time, when the first fireproof agent stream is complete or temperature is too high, the melting of helical spacer pipe, second fireproof agent flows out and carries out fire extinguishing process, second fireproof agent extinguishing effect is better than the first fireproof agent, and the two forms twice fire extinguishing defence line, can extinguish the blaze in time, good extinguishing effect, global design is reasonable, and structure is simple, practical.
In above-mentioned multicore flame retardant cable, between described circular cable core, be filled with the filler be made up of refractory material.Filler reduces the air between circular cable core, avoids on fire.
In above-mentioned multicore flame retardant cable, described circular cable core outside is wound with glass fiber tape.Glass fiber tape has fire-retardant effect, prevents the generation of fire.
In above-mentioned multicore flame retardant cable, described circular cable core comprises some mutually stranded round conductors, is provided with insulating barrier outside described round conductor.
In above-mentioned multicore flame retardant cable, the inner face of described helical spacer pipe has melting mouth, described melting mouth is coated with the second molten sheet, the fusing point of the second described molten sheet is greater than the first molten sheet and is less than helical spacer pipe, described separator is provided with the through hole corresponding with melting mouth, and described melting mouth was connected with through hole by communicating pipe.During the second molten sheet melting, the second fireproof agent flows out from helical spacer pipe, carries out fire extinguishing process, and the first molten sheet, the second molten sheet and helical spacer pipe form three grades of fire extinguishing defence lines.
Compared with prior art, the advantage of this multicore flame retardant cable is:
The first, when fire does not occur, glass fiber tape and separator are made up of fire proofing, have fire-retardant effect, prevent the generation of fire, and filler reduces the air between circular cable core, avoid on fire.
The second, when cable is on fire, the first molten sheet melting on separator, the first fireproof agent in spiral space is put out a fire to point of origin, can avoid the generation of fire in time; When the first fireproof agent stream is complete or temperature is too high, the melting of helical spacer pipe, the second fireproof agent flows out and carries out fire extinguishing process, and the second fireproof agent extinguishing effect is better than the first fireproof agent; During the second molten sheet melting, the second fireproof agent flows out from helical spacer pipe, carries out fire extinguishing process, and the first molten sheet, the second molten sheet and helical spacer pipe form three grades of fire extinguishing defence lines, can extinguish the blaze in time, good extinguishing effect, global design is reasonable, structure is simple, practical.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides;
Fig. 2 is the partial sectional view that the utility model provides.
In figure, circular cable core 1, tighten layer 2, separator 3, fireproof casing 4, annular space 5, helical spacer pipe 6, spiral space 7, first inlet 8, first liquid outlet 9, second inlet 10, second liquid outlet 11, first molten sheet 12, round conductor 13, insulating barrier 14, second molten sheet 15.
Embodiment
Embodiment
As shown in Figure 1-2, this multicore flame retardant cable comprises some mutually stranded circular cable cores 1, be provided with outside circular cable core 1 circular cable core 1 can be made to press together tighten layer 2, the outside of tightening layer 2 is provided with the separator 3 be made up of fire proofing material, separator 3 overcoat has fireproof casing 4, annular space 5 is provided with between fireproof casing 4 and separator 3, separator is provided with the helical spacer pipe 6 around separator 3 Spiral distribution, annular space 5 is separated into some spiral spaces 7 by helical spacer pipe 6, the first fireproof agent is provided with in spiral space 7, the second fireproof agent is provided with in helical spacer pipe 6, fireproof casing 4 is provided with the first inlet 8 be connected with spiral space 7, separator 3 has the first liquid outlet 9 be connected with spiral space 7, fireproof casing 4 is provided with the second inlet 10 and the second liquid outlet 11 with helical spacer pipe 6 intracavity inter-connection, separator 3 is evenly provided with the flow export be connected with spiral space 7, flow export is coated with the first molten sheet 12, the fusing point of the first molten sheet 12 is lower than the fusing point of helical spacer pipe 6.When fire does not occur, separator 3 is made up of fire proofing, has fire-retardant effect, prevents the generation of fire; When cable is on fire, the first molten sheet 12 melting on separator 3, the first fireproof agent in spiral space 7 is put out a fire to point of origin, the generation of fire can be avoided in time, when the first fireproof agent stream is complete or temperature is too high, helical spacer pipe 6 melting, second fireproof agent flows out and carries out fire extinguishing process, second fireproof agent extinguishing effect is better than the first fireproof agent, and the two forms twice fire extinguishing defence line, can extinguish the blaze in time, good extinguishing effect, global design is reasonable, and structure is simple, practical.
Improve as one, be filled with the filler be made up of refractory material between circular cable core 1, filler reduces the air between circular cable core 1, avoids on fire.Improve as one, circular cable core 1 outside is wound with glass fiber tape, and glass fiber tape has fire-retardant effect, prevents the generation of fire.More particularly, circular cable core 1 comprises some mutually stranded round conductors 13, is provided with insulating barrier 14 outside round conductor 13.Improve as one, the inner face of helical spacer pipe 6 has melting mouth, melting mouth is coated with the second molten sheet 15, the fusing point of the second molten sheet 15 is greater than the first molten sheet 12 and is less than helical spacer pipe 6, separator 3 is provided with the through hole corresponding with melting mouth, and melting mouth was connected with through hole by communicating pipe.During the second molten sheet 15 melting, the second fireproof agent flows out from helical spacer pipe 6, carries out fire extinguishing process, and the first molten sheet 12, second molten sheet 15 and helical spacer pipe 6 form three grades of fire extinguishing defence lines.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ circular cable core 1 herein, tighten layer 2, the term such as separator 3, fireproof casing 4, annular space 5, helical spacer pipe 6, spiral space 7, first inlet 8, first liquid outlet 9, second inlet 10, second liquid outlet 11, first molten sheet 12, round conductor 13, insulating barrier 14, second molten sheet 15, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (5)
1. a multicore flame retardant cable, it is characterized in that, comprise some mutually stranded circular cable cores (1), be provided with outside described circular cable core (1) circular cable core (1) can be made to press together tighten layer (2), the described outside of tightening layer (2) is provided with the separator (3) be made up of fire proofing material, described separator (3) overcoat has fireproof casing (4), annular space (5) is provided with between described fireproof casing (4) and separator (3), described separator is provided with the helical spacer pipe (6) around separator (3) Spiral distribution, annular space (5) is separated into some spiral spaces (7) by described helical spacer pipe (6), the first fireproof agent is provided with in described spiral space (7), the second fireproof agent is provided with in described helical spacer pipe (6), described fireproof casing (4) is provided with the first inlet (8) be connected with spiral space (7), described separator (3) has the first liquid outlet (9) be connected with spiral space (7), described fireproof casing (4) is provided with and second inlet (10) of helical spacer pipe (6) intracavity inter-connection and the second liquid outlet (11), described separator (3) is evenly provided with the flow export be connected with spiral space (7), described flow export is coated with the first molten sheet (12), the fusing point of described the first molten sheet (12) is lower than the fusing point of helical spacer pipe (6).
2. multicore flame retardant cable according to claim 1, is characterized in that, is filled with the filler be made up of refractory material between described circular cable core (1).
3. multicore flame retardant cable according to claim 2, is characterized in that, described circular cable core (1) outside is wound with glass fiber tape.
4. multicore flame retardant cable according to claim 3, it is characterized in that, described circular cable core (1) comprises some mutually stranded round conductors (13), is provided with insulating barrier (14) outside described round conductor (13).
5. multicore flame retardant cable according to claim 4, it is characterized in that, the inner face of described helical spacer pipe (6) has melting mouth, described melting mouth is coated with the second molten sheet (15), the fusing point of described the second molten sheet (15) is greater than the first molten sheet (12) and is less than helical spacer pipe (6), described separator (3) is provided with the through hole corresponding with melting mouth, and described melting mouth was connected with through hole by communicating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520316968.5U CN204632396U (en) | 2015-05-15 | 2015-05-15 | Multicore flame retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520316968.5U CN204632396U (en) | 2015-05-15 | 2015-05-15 | Multicore flame retardant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204632396U true CN204632396U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520316968.5U Expired - Fee Related CN204632396U (en) | 2015-05-15 | 2015-05-15 | Multicore flame retardant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204632396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323001A (en) * | 2019-07-29 | 2019-10-11 | 宝上电缆有限公司 | A kind of fire prevention moisturizing cable |
-
2015
- 2015-05-15 CN CN201520316968.5U patent/CN204632396U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323001A (en) * | 2019-07-29 | 2019-10-11 | 宝上电缆有限公司 | A kind of fire prevention moisturizing cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20160515 |