CN106169331A - A kind of electric wire fire prevention sheath - Google Patents

A kind of electric wire fire prevention sheath Download PDF

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Publication number
CN106169331A
CN106169331A CN201610636101.7A CN201610636101A CN106169331A CN 106169331 A CN106169331 A CN 106169331A CN 201610636101 A CN201610636101 A CN 201610636101A CN 106169331 A CN106169331 A CN 106169331A
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CN
China
Prior art keywords
sheath
electric wire
fire
mixed layer
layer
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201610636101.7A
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Chinese (zh)
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CN106169331B (en
Inventor
邢洪城
汪开祥
邢杨
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Zhongyang Electric Power Technology Co ltd
Original Assignee
Tongling Xinneng Building Electrical Safety Technology Co Ltd
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Priority to CN201610636101.7A priority Critical patent/CN106169331B/en
Publication of CN106169331A publication Critical patent/CN106169331A/en
Application granted granted Critical
Publication of CN106169331B publication Critical patent/CN106169331B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/295Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00Fireproofing materials
    • C09K21/06Organic materials
    • C09K21/12Organic materials containing phosphorus
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/292Protection against damage caused by extremes of temperature or by flame using material resistant to heat

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Insulated Conductors (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

The invention discloses a kind of electric wire fire prevention sheath, be outer and interior include protective layer, mixed layer and thermal insulation layer successively, ringwise, sheath is provided with breach convenient to operate in the longitudinal section of sheath;Alternately it is provided with polyolefin flame-retardant pipe in described mixed layer and fire proofing fills pipe, in described mixed layer, be also filled with expanded graphite and APP combustion adjuvant;Described fire proofing is filled with powdered object in filling pipe.Use the electric wire fire prevention sheath of this structure, can directly sheath be enclosed within the outside of electric wire, when run into catch fire condition time, sheath start expand thus by whole electric wire parcel protection, the thermal insulation layer of sheath and mixed layer play fire-retardant effect.The present invention directly key position at original cable can install this sheath, has the most heat insulation and fire-retardant effect simultaneously.

Description

A kind of electric wire fire prevention sheath
Technical field
The present invention relates to electric wire field, particularly relate to a kind of electric wire fire prevention sheath.
Background technology
Along with the development of society, the progress of science and technology, numerous power plant, smelter, oil play etc. are to large-scale grouping of the world economy Direction is developed, and skyscraper, place of public amusement, subway and underground street etc. continue to bring out, and its power consumption grows with each passing day, electric wire Kind and the consumption of cable increase the most accordingly.Electric wire gets final product transmission & distribution electric energy, transmission information, but it causes fire simultaneously Blasting fuse.The most common cable, cannot be energized once be burned when actually occurring fire, but many important events occur During fire, evacuating personnel, the illumination of passage, fire protection alarm device, automatic fire-fighting facility and other emergency sets are desirable that cable Can normal power-up at the appointed time when fire occurs.Therefore fireproof cable i.e. arises at the historic moment, and fireproof cable refers in regulation Condition and in the time, cable is burned in flame, still can keep properly functioning electric wire.The most a lot of fire prevention Cable use on cable conductor wrapped come goods mica tape structure, but this type of method can not ensure cable effectively, reliably In the case of catching fire properly functioning.
Therefore, people have developed again various fireproof electric wire and cable, but this type of cable effect its cost pole general Height, hinders the development of fireproof cable greatly.
Summary of the invention
Present invention aim to address the deficiencies in the prior art, it is provided that a kind of electric wire fireproof, thus effectively Protection electric wire work in the case of catching fire, reduce production cost simultaneously, be more beneficial for electric wire is just changed Make, thus effectively promote.
The technical solution used in the present invention is: a kind of electric wire fire prevention sheath, by outer and interior include successively protective layer, Mixed layer and thermal insulation layer, ringwise, sheath is provided with breach convenient to operate in the longitudinal section of sheath;Alternately set in described mixed layer There are polyolefin flame-retardant pipe and fire proofing to fill pipe, in described mixed layer, are also filled with expanded graphite and APP combustion adjuvant;Described resistance Combustible material is filled in pipe and is filled with powdered object, and described powdered object includes following component and weight portion content: sodium silicate Powder 20~35, calcium hydroxide 5~8, magnesium hydroxide 6~8, ceramics 4~8, glass dust 4~6, bentonite 4~8, SiO 2 powder 10~15, tricresyl phosphate ether phenyl ester powder 10~50;Described thermal insulation layer it include following component and weight Part content: glass fibre 30~40, brucite 40~60, composite resin 5~10, binding agent 4~6, hydrophober 0~1.
As a further improvement on the present invention, described protective layer is by Ceramic silicon rubber and TiO2Collectively form.
As the further improvement of the present invention, the breach on described sheath is π/18~π/9 radian.
The present invention uses and provides the benefit that: use the electric wire fire prevention sheath of this structure, can be directly by sheath Be enclosed within the outside of electric wire, when run into catch fire condition time, sheath start expand thus by whole electric wire parcel protection, protect Thermal insulation layer and the mixed layer of set play fire-retardant effect.The present invention can directly original cable key position install originally protect Overlap, there is the most heat insulation and fire-retardant effect simultaneously.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is top view of the present invention.
Shown in figure: 1 protective layer, 2 thermal insulation layers, 3 mixed layers, 4 polyolefin flame-retardant pipes, 5 fire proofings fill pipe.
Detailed description of the invention
Below in conjunction with Fig. 1 and Fig. 2, the present invention is described further.
As it can be seen, a kind of electric wire fire prevention sheath, outer and interior include protective layer 1, mixed layer 3 and heat insulation successively Layer 2, ringwise, sheath is provided with breach convenient to operate in the longitudinal section of sheath;Polyolefin resistance alternately it is provided with in described mixed layer 3 Combustion pipe 4 and fire proofing fill pipe 5, are also filled with expanded graphite and APP combustion adjuvant in described mixed layer 3;Described fire proofing Filling in pipe 5 and be filled with powdered object, described powdered object includes following component and weight portion content: sodium silicate powder 20~35, calcium hydroxide 5~8, magnesium hydroxide 6~8, ceramics 4~8, glass dust 4~6, bentonite 4~8, titanium dioxide Si powder 10~15, tricresyl phosphate ether phenyl ester powder 10~50;Described thermal insulation layer 2 it include that following component and weight portion contain Amount: glass fibre 30~40, brucite 40~60, composite resin 5~10, binding agent 4~6, hydrophober 0~1.
Electric wire is placed wherein by indentation, there by the sheath of the present invention, thus electric wire is protected.When Running into when catching fire state, sheath starts to expand thus by the parcel protection of whole electric wire, thermal insulation layer and the mixed layer of sheath rise To fire-retardant effect.
The present invention, for the electric wire best results of exposed bad transformation, can be directly acted on by the present invention The electric wire exposed, without carrying out overhauling the work such as transformation, it is simple to promote and use.The present invention has convenient operation, Easy to use, the feature of good flame retardation effect.
In order to preferably illustrate the present invention, elite take some embodiments and be further described.
Embodiment 1, a kind of electric wire fire prevention sheath, outer and interior include protective layer 1, mixed layer 3 and heat insulation successively Layer 2, ringwise, sheath is provided with breach convenient to operate in the longitudinal section of sheath;Polyolefin resistance alternately it is provided with in described mixed layer 3 Combustion pipe 4 and fire proofing fill pipe 5, are also filled with expanded graphite and APP combustion adjuvant in described mixed layer 3;Described fire proofing Filling in pipe 5 and be filled with powdered object, described powdered object includes following component and weight portion content: sodium silicate powder 35, calcium hydroxide 8, magnesium hydroxide 8, ceramics 8, glass dust 6, bentonite 8, SiO 2 powder 15, tricresyl phosphate ether benzene Ester powder 12;Described thermal insulation layer 2 it include following component and weight portion content: glass fibre 30, brucite 60, compound tree Fat 5, binding agent 4;Protective layer is by Ceramic silicon rubber and TiO2Collectively forming, the breach on sheath is π/18 radian.
Embodiment 2, a kind of electric wire fire prevention sheath, outer and interior include protective layer 1, mixed layer 3 and heat insulation successively Layer 2, ringwise, sheath is provided with breach convenient to operate in the longitudinal section of sheath;Polyolefin resistance alternately it is provided with in described mixed layer 3 Combustion pipe 4 and fire proofing fill pipe 5, are also filled with expanded graphite and APP combustion adjuvant in described mixed layer 3;Described fire proofing Filling in pipe 5 and be filled with powdered object, described powdered object includes following component and weight portion content: sodium silicate powder 20, calcium hydroxide 5, magnesium hydroxide 6, ceramics 4, glass dust 4, bentonite 4, SiO 2 powder 10, tricresyl phosphate ether benzene Ester powder 47;Described thermal insulation layer 2 it include following component and weight portion content: glass fibre 40, brucite 40, compound tree Fat 10, binding agent 6, hydrophober 1;Protective layer is by Ceramic silicon rubber and TiO2Collectively forming, the breach on sheath is π/9 Radian.
Embodiment 3, a kind of electric wire fire prevention sheath, outer and interior include protective layer 1, mixed layer 3 and heat insulation successively Layer 2, ringwise, sheath is provided with breach convenient to operate in the longitudinal section of sheath;Polyolefin resistance alternately it is provided with in described mixed layer 3 Combustion pipe 4 and fire proofing fill pipe 5, are also filled with expanded graphite and APP combustion adjuvant in described mixed layer 3;Described fire proofing Filling in pipe 5 and be filled with powdered object, described powdered object includes following component and weight portion content: sodium silicate powder 30, calcium hydroxide 7, magnesium hydroxide 7, ceramics 6, glass dust 5, bentonite 6, SiO 2 powder 13, tricresyl phosphate ether benzene Ester powder 26;Described thermal insulation layer 2 it include following component and weight portion content: glass fibre 35, brucite 52, compound tree Fat 7, binding agent 5, hydrophober 1;Protective layer is by Ceramic silicon rubber and TiO2Collectively forming, the breach on sheath is π/12 Radian.
Use the electric wire fire prevention sheath of this structure, directly sheath can be enclosed within the outside of electric wire, work as chance To catch fire condition time, sheath start expand thus by whole electric wire parcel protection, thermal insulation layer and the mixed layer of sheath play Fire-retardant effect.The present invention directly key position at original cable can install this sheath, has well simultaneously Heat insulation and fire-retardant effect.
Those skilled in the art are it is to be understood that the protection scheme of the present invention is not limited only to the above embodiments, it is also possible to Various permutation and combination and conversion is carried out, on the premise of spirit of the present invention, to the present invention on the basis of above-described embodiment The various conversion carried out all fall within protection scope of the present invention.

Claims (3)

1. an electric wire fire prevention sheath, it is characterized in that by outer and interior include successively protective layer (1), mixed layer (3) and every Thermosphere (2), ringwise, sheath is provided with breach convenient to operate in the longitudinal section of sheath;Alternately it is provided with poly-in described mixed layer (3) Flame retarding olefin pipe (4) and fire proofing fill pipe (5), are also filled with expanded graphite and APP combustion adjuvant in described mixed layer (3);
Described fire proofing is filled with powdered object in filling pipe (5), and described powdered object includes following component and weight Part content: sodium silicate powder 20~35, calcium hydroxide 5~8, magnesium hydroxide 6~8, ceramics 4~8, glass dust 4~6, Bentonite 4~8, SiO 2 powder 10~15, tricresyl phosphate ether phenyl ester powder 10~50;
Described thermal insulation layer (2) it include following component and weight portion content: glass fibre 30~40, brucite 40~60, multiple Resin 5~10, binding agent 4~6, hydrophober 0~1.
A kind of electric wire fire prevention sheath the most according to claim 1, is characterized in that described protective layer (1) is by ceramic Silicone rubber and TiO2Collectively form.
A kind of electric wire fire prevention sheath the most according to claim 1 and 2, is characterized in that the breach on described sheath is π/18~π/9 radian.
CN201610636101.7A 2016-08-05 2016-08-05 A kind of electric wire fire prevention sheath Active CN106169331B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610636101.7A CN106169331B (en) 2016-08-05 2016-08-05 A kind of electric wire fire prevention sheath

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CN106169331B CN106169331B (en) 2018-06-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108270182A (en) * 2016-12-30 2018-07-10 厦门金龙旅行车有限公司 A kind of fireproof for electric vehicle cable-through hole
CN112466537A (en) * 2020-11-18 2021-03-09 安徽神华特种线缆有限公司 Anti-interference flame-retardant control cable

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01150320U (en) * 1988-04-08 1989-10-18
CN102493829A (en) * 2011-11-16 2012-06-13 山东合兴科技发展有限公司 Phase-change material fireproof composite board for mine
CN104575796A (en) * 2013-10-13 2015-04-29 宁夏海洋线缆有限公司 High-conductivity cable
CN204808907U (en) * 2015-05-19 2015-11-25 重庆市亚通电线电缆有限公司 Insulating cord of copper core polyvinyl chloride
CN105777150A (en) * 2016-02-03 2016-07-20 上海胜华电气股份有限公司 Improved isolation layer fireproof material for fireproof wires and cables and manufacturing method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01150320U (en) * 1988-04-08 1989-10-18
CN102493829A (en) * 2011-11-16 2012-06-13 山东合兴科技发展有限公司 Phase-change material fireproof composite board for mine
CN104575796A (en) * 2013-10-13 2015-04-29 宁夏海洋线缆有限公司 High-conductivity cable
CN204808907U (en) * 2015-05-19 2015-11-25 重庆市亚通电线电缆有限公司 Insulating cord of copper core polyvinyl chloride
CN105777150A (en) * 2016-02-03 2016-07-20 上海胜华电气股份有限公司 Improved isolation layer fireproof material for fireproof wires and cables and manufacturing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108270182A (en) * 2016-12-30 2018-07-10 厦门金龙旅行车有限公司 A kind of fireproof for electric vehicle cable-through hole
CN108270182B (en) * 2016-12-30 2024-02-20 厦门金龙旅行车有限公司 A fire prevention sheath for electric automobile wire hole
CN112466537A (en) * 2020-11-18 2021-03-09 安徽神华特种线缆有限公司 Anti-interference flame-retardant control cable

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Address after: 244000 floor 6, complex building, No. 5555, south section of Lingjiang Avenue, Tongling City, Anhui Province

Patentee after: Zhongyang Electric Power Technology Co.,Ltd.

Address before: 244000 Anhui province Tongling City suburb river near the south of the road No. 5555 Building No. 6

Patentee before: TONGLING XINNENG JIANDIAN SAFETY TECHNOLOGY CO.,LTD.

CP03 Change of name, title or address
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A fireproof sheath for wires and cables

Effective date of registration: 20231220

Granted publication date: 20180605

Pledgee: Tongling Rural Commercial Bank Co.,Ltd. Tongdu Sub branch

Pledgor: Zhongyang Electric Power Technology Co.,Ltd.

Registration number: Y2023980072905

PE01 Entry into force of the registration of the contract for pledge of patent right