CN112086229A - Hot wrapping type air-impact flame-retardant cable - Google Patents
Hot wrapping type air-impact flame-retardant cable Download PDFInfo
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- CN112086229A CN112086229A CN202010958160.2A CN202010958160A CN112086229A CN 112086229 A CN112086229 A CN 112086229A CN 202010958160 A CN202010958160 A CN 202010958160A CN 112086229 A CN112086229 A CN 112086229A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
- H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses a heat-wrapped air-blast flame-retardant cable, which belongs to the technical field of cables and can promote flame-retardant mixed powder in a storage cavity to be thermally decomposed through the temperature during combustion, and promote a heat soft guide rope to be softened by virtue of the change of the temperature, so that outer heat-variable flame-retardant films are drawn to mutually approach under the mutual attraction action of two magnetic adsorption balls until the outer heat-variable flame-retardant films wrap the whole cable body, the outer heat-variable flame-retardant films can be punctured by virtue of a first puncture short needle when the outer heat-variable flame-retardant films are mutually contacted, so that carbon dioxide gas and water generated by the decomposition of the flame-retardant mixed powder are promoted to flow out, on one hand, the possibility of the combustion of the cable body can be reduced by virtue of the flame-retardant action of carbon dioxide, on the other hand, the cable body can be protected by virtue of the generated water entering between the cable body and the outer heat-variable flame-retardant films, thereby reducing the possibility of damage to the cable body due to excessive temperature.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a heat-wrapped air-impact flame-retardant cable.
Background
The cable is made of one or more mutually insulated conductors and an outer insulating protective layer, the conductors for transmitting power or information from one place to another place are generally rope-like cables formed by twisting several or several groups of conductors (at least two in each group), each group of conductors are mutually insulated and are usually twisted around a center, the whole cable is coated with a highly insulating coating, the cable has the characteristics of internal electrification and external insulation, and the cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like, and the cables consist of single-strand or multi-strand conductors and insulating layers and are used for connecting circuits, electric appliances and the like.
The flame-retardant cable is a cable which is characterized in that a test sample is burnt under a specified test condition, after a test fire source is removed, the flame spread is only within a limited range, and residual flame or residual ignition can be self-extinguished within a limited time. The basic characteristics are as follows: in the event of a fire, may burn out and fail to operate, but may prevent the spread of the fire. In common, in case of fire, the electric wire can limit the combustion within a local range, does not spread, keeps other various equipment and avoids causing larger loss.
In the prior art, most flame-retardant cables really have a strong flame-retardant effect, but in the actual use process, the phenomenon that the cables burn only exists in accidents, and the burning of the cables is not common, so that in the actual use process of the cables, the flame-retardant surface layer on the outer side reduces the loss of heat generated in the cables during working, and the service life of the cables can be reduced.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a heat-wrapped air-blast flame-retardant cable, which can promote the flame-retardant mixed powder in a storage cavity to be thermally decomposed through the temperature during combustion, and promote a heat soft guide rope to be softened by means of the change of the temperature, so that the outer heat-variable flame-retardant films are drawn to mutually approach under the mutual attraction action of two magnetic adsorption balls until the outer heat-variable flame-retardant films wrap the whole cable body, the outer heat-variable flame-retardant films can be punctured when the outer heat-variable flame-retardant films are mutually contacted by means of a first puncture short needle, so that carbon dioxide gas and water generated by the decomposition of the flame-retardant mixed powder are promoted to flow out, on one hand, the possibility of the combustion of the cable body can be reduced by means of the flame-retardant action of the carbon dioxide, on the other hand, the cable body can be protected by means of the generated water entering between the cable body and the outer heat-, thereby reducing the possibility of damage to the cable body due to excessive temperature.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A heat-wrapped air-impact flame-retardant cable comprises a cable body, wherein an outer heat-change flame-retardant film is fixedly connected to the outer end of the cable body, a storage cavity is formed in the outer heat-change flame-retardant film in a chiseled mode, a plurality of heat soft guide ropes which are uniformly distributed are arranged in the outer heat-change flame-retardant film, a pair of magnetic adsorption balls are embedded and installed at the outer end of each heat soft guide rope, the two magnetic adsorption balls attract each other, flame-retardant mixed powder is filled in the outer heat-change flame-retardant film, one ends, close to each other, of the outer heat-change flame-retardant film are fixedly connected with first puncture short needles, the outer ends of the first puncture short needles are fixedly connected with a plurality of main capillary claw thorns which are uniformly distributed, the outer ends of the magnetic adsorption balls are fixedly connected with a plurality of auxiliary capillary claw thorns which are uniformly distributed, a plurality of heat extrusion devices which are uniformly distributed are fixedly connected to the inner wall of the outer heat-change flame-retardant, the thermal flexible guide rope is made to be flexible by means of temperature change, the external thermal variable flame-retardant films are pulled to be close to each other under the action of mutual attraction of the two magnetic adsorption balls until the external thermal variable flame-retardant films wrap the whole cable body, the external thermal variable flame-retardant films can be punctured when the external thermal variable flame-retardant films are in mutual contact by means of the first puncture short needle, so that carbon dioxide gas and water generated by decomposition of flame-retardant mixed powder can be made to flow out, on one hand, the possibility of burning of the cable body can be reduced by means of the flame-retardant action of carbon dioxide, on the other hand, the cable body can be protected by means of the generated water entering between the cable body and the external thermal variable flame-retardant films, and therefore the possibility of damage caused by overhigh temperature of the cable body is reduced.
Further, the hot extrusion device comprises an outer rubber coating fixedly connected with the inner wall of the outer thermal variable flame-retardant film, the outer rubber coating is filled with carbon dioxide aqueous solution, the inner wall of the outer rubber coating is fixedly connected with a traction magnetic ball, the outer end of the traction magnetic ball is fixedly connected with a pair of first puncture short needles, and by means of the temperature rise of the hot extrusion device, can promote the carbon dioxide aqueous solution to be rapidly decomposed and generate a large amount of carbon dioxide and promote the expansion of the outer rubber coating, on one hand, the flame-retardant mixed powder in the storage cavity can be extruded by means of the deformation of the outer rubber coating, thereby accelerate the efficiency that fire-retardant mixed powder decomposed, on the other hand can make first puncture short needle puncture outer rubber capsule with the help of the lasting deformation of outer rubber capsule to further improve carbon dioxide, with this improvement to the fire-retardant efficiency of cable body.
Further, cable body outer end fixedly connected with layer that absorbs water, the layer that absorbs water is made by the silica gel material that absorbs water, and the layer that absorbs water through the silica gel material preparation that absorbs water can absorb the moisture that enters into between cable body and the outer thermal change flame retardant coating, can reduce the too high possibility of cable body temperature with the help of the protection of water on the one hand, and on the other hand can reduce the diffusion of water and the possibility that appears the electric leakage.
Furthermore, the flame-retardant mixed powder is prepared by mixing calcium bicarbonate powder and reducing iron powder, the mixing ratio of the calcium bicarbonate powder to the reducing iron powder is 1:1, the flame-retardant effect of the cable body can be improved by virtue of carbon dioxide and water generated after the calcium bicarbonate powder is heated and decomposed, and the oxygen can be consumed by virtue of the reaction of the reducing iron powder and the oxygen, so that the possibility of combustion of the cable body is reduced.
Furthermore, the first short puncture needle is made of a nickel-titanium memory alloy material, the balance temperature of the first short puncture needle is 40 ℃, and the first short puncture needle is made of the nickel-titanium memory alloy material, so that the first short puncture needle can be enabled to be hardened after the temperature of the first short puncture needle is increased to the balance temperature, and the first short puncture needle is enabled to puncture the outer heat-changing flame-retardant film after the outer heat-changing flame-retardant film wraps the cable body.
Furthermore, a plurality of uniformly distributed magnetic insulation powder is embedded in the outer rubber coating, the magnetic insulation powder is made of an iron-nickel memory alloy material with the nickel content of 80%, and the magnetic insulation powder is made of the iron-nickel alloy material, so that the magnetic shielding of the traction magnetic ball can be released after the outer rubber coating expands, and the outer rubber coating is promoted to continue to expand by means of the attraction of the magnetic adsorption ball to the traction magnetic ball.
Furthermore, outer rubber coating upper end fixedly connected with splits awl thorn, the length of splitting awl thorn is greater than the wall thickness of outer heat altered fire-retardant membrane, through setting up the splitting awl thorn, can continue the inflation back at outer rubber coating, makes the splitting awl thorn prick outer heat altered fire-retardant membrane, makes the calcium carbonate powder that produces after its interior fire-retardant mixed powder reaction expose, with the help of calcium carbonate powder's flame retardant action, can further improve the flame retardant efficiency to the cable body.
A use method of a heat-wrapped air-blast flame-retardant cable comprises the following steps:
s1, the flame-retardant mixed powder in the storage cavity can be promoted to be heated and decomposed by the temperature during combustion, and the thermal soft guide rope is promoted to be soft by the change of the temperature;
s2, drawing the external thermal change flame-retardant films to approach each other under the mutual attraction effect of the two magnetic adsorption balls until the whole cable body is wrapped by the external thermal change flame-retardant films;
s3, the first puncture short needle can puncture the external thermal change flame-retardant films when the external thermal change flame-retardant films are contacted with each other, so that carbon dioxide gas and water generated by decomposing the flame-retardant mixed powder can be promoted to flow out.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) temperature when this scheme is through burning, can make the fire-retardant mixed powder of storage intracavity be heated and decompose, and make the soft rope of leading of heat soft by virtue of the change of temperature and become soft, with this pull outer heat change flame retardant membrane under the effect of the inter attraction of two magnetic adsorption balls and be close to each other, until outer heat change flame retardant membrane wraps up whole cable body, can prick outer heat change flame retardant membrane when outer heat change flame retardant membrane contacts each other with the help of first puncture short needle, with this carbon dioxide gas and the outflow of water that make the decomposition of fire-retardant mixed powder produce, can be with the help of the flame retardant action of carbon dioxide on the one hand, can reduce the possibility that cable body burns, on the other hand enters into cable body and outer heat change between the flame retardant membrane with the help of the water that produces, can protect cable body, thereby reduce cable body high temperature and the possibility of damage.
(2) Hot extrusion device includes the outer rubber diolame with outer thermal varistor flame retardant membrane inner wall fixed connection, outer rubber diolame intussuseption is filled with carbon dioxide aqueous solution, outer rubber diolame inner wall fixed connection has pulls the magnetic ball, pull the magnetic ball outer end fixed connection and a pair of first puncture short needle, rise with the help of hot extrusion device's temperature, can make a large amount of carbon dioxide that carbon dioxide aqueous solution decomposes rapidly and produce and make outer rubber diolame inflation, can extrude the fire-retardant mixed powder in the storage chamber with the help of outer rubber diolame on the one hand, thereby accelerate the efficiency that fire-retardant mixed powder decomposes, on the other hand can be with the help of the lasting deformation of outer rubber diolame, make first puncture short needle prick outer rubber diolame, thereby further improve carbon dioxide, with this flame retardant efficiency who improves the cable body.
(3) Cable body outer end fixedly connected with absorbs water the layer, and the layer that absorbs water is made by the silica gel material that absorbs water, and the layer that absorbs water through the silica gel material preparation that absorbs water can absorb the moisture that enters into between cable body and the outer thermal varistor membrane, can reduce the too high possibility of cable body temperature with the help of the protection of water on the one hand, and on the other hand can reduce the diffusion of water and the possibility that appears the electric leakage.
(4) The flame-retardant mixed powder is prepared by mixing calcium bicarbonate powder and reducing iron powder, the mixing ratio of the calcium bicarbonate powder to the reducing iron powder is 1:1, the calcium bicarbonate can be used for generating carbon dioxide and water after being heated and decomposed by virtue of the calcium bicarbonate, so that the flame-retardant effect of the cable body is improved, and the oxygen can be consumed by virtue of the reaction of the reducing iron powder and the oxygen, so that the possibility of combustion of the cable body is reduced.
(5) The first short puncture needle is made of a nickel-titanium memory alloy material, the balance temperature of the first short puncture needle is 40 ℃, and the first short puncture needle is made of the nickel-titanium memory alloy material, so that the texture of the first short puncture needle becomes hard after the temperature of the first short puncture needle is increased to the balance temperature, and the first short puncture needle is enabled to puncture the outer heat-variable flame-retardant film after the outer heat-variable flame-retardant film wraps the cable body.
(6) The outer rubber coating is embedded with a plurality of uniformly distributed magnetic insulation powder, the magnetic insulation powder is made of an iron-nickel memory alloy material with 80% of nickel content, the magnetic shielding of the traction magnetic ball can be released after the outer rubber coating expands by using the iron-nickel memory alloy material to make the magnetic insulation powder, and the outer rubber coating is promoted to continue to expand by means of the attraction of the magnetic adsorption ball to the traction magnetic ball.
(7) Outer rubber envelope upper end fixedly connected with splits awl thorn, and the length of splitting awl thorn is greater than the wall thickness of outer heat altered fire-retardant membrane, through setting up the splitting awl thorn, can continue the inflation back at outer rubber envelope, makes the splitting awl thorn prick outer heat altered fire-retardant membrane, makes the calcium carbonate powder that produces after its interior fire-retardant mixed powder reaction expose, with the help of calcium carbonate powder's flame-retardant effect, can further improve the flame retardant efficiency to the cable body.
Drawings
FIG. 1 is a cross-sectional view of a cable body of the present invention before being wrapped;
FIG. 2 is a cross-sectional view of the cable body of the present invention after it has been wrapped;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
FIG. 4 is a cross-sectional view of a portion of a hot extrusion apparatus of the present invention;
fig. 5 is a sectional view of the hot press apparatus of the present invention during deformation.
The reference numbers in the figures illustrate:
the cable comprises a cable body 1, a water absorption layer 101, an external thermal change flame-retardant film 2, a thermal soft guide rope 3, a magnetic adsorption ball 4, flame-retardant mixed powder 5, a first puncture short needle 6, a main capillary claw 7, an auxiliary capillary claw 8, a hot extrusion device 9, an external rubber envelope 10, a splitting cone 1001, a carbon dioxide aqueous solution 11, a traction magnetic ball 12 and a first puncture short needle 13.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-3, a heat-wrapped air-blast flame-retardant cable comprises a cable body 1, an outer heat-changeable flame-retardant film 2 is fixedly connected to the outer end of the cable body 1, a storage cavity is chiseled in the outer heat-changeable flame-retardant film 2, a plurality of uniformly distributed heat soft guide ropes 3 are arranged in the outer heat-changeable flame-retardant film 2, a pair of magnetic adsorption balls 4 are embedded in the outer ends of the heat soft guide ropes 3, the two magnetic adsorption balls 4 attract each other, flame-retardant mixed powder 5 is filled in the outer heat-changeable flame-retardant film 2, a first puncture short needle 6 is fixedly connected to one end of the outer heat-changeable flame-retardant film 2 close to each other, a plurality of uniformly distributed main capillary claws 7 are fixedly connected to the outer end of the first puncture short needle 6, a plurality of uniformly distributed auxiliary capillary claws 8 are fixedly connected to the outer end of the magnetic adsorption balls 4, a plurality of uniformly distributed thermal extrusion devices 9 are fixedly connected to the inner wall of the outer heat-changeable flame-retardant, can impel the fire-retardant mixed powder 5 of storage intracavity to be heated and decompose, and impel the soft rope 3 of leading of heat to become soft with the help of the change of temperature, thereby draw outer heat altered fire-retardant membrane 2 to be close to each other under the effect of the inter attraction of two magnetic adsorption balls 4, until outer heat altered fire-retardant membrane 2 wraps up whole cable body 1, can prick outer heat altered fire-retardant membrane 2 when outer heat altered fire-retardant membrane 2 contacts each other with the help of first puncture short needle 6, with this impel the carbon dioxide gas and the outflow of water that fire-retardant mixed powder 5 decomposed production, can utilize the flame retardant action of carbon dioxide on the one hand, can reduce the possibility of cable body 1 burning, on the other hand, enter into between cable body 1 and outer heat altered fire-retardant membrane 2 with the help of the produced water, can protect cable body 1, thereby reduce the possibility that cable body 1 high temperature and damage.
Referring to fig. 4-5, the hot extrusion device 9 includes an outer rubber envelope 10 fixedly connected to the inner wall of the outer thermal variable flame-retardant film 2, a carbon dioxide aqueous solution 11 is filled in the outer rubber envelope 10, a traction magnetic ball 12 is fixedly connected to the inner wall of the outer rubber envelope 10, a pair of first piercing pins 13 is fixedly connected to the outer end of the traction magnetic ball 12, the carbon dioxide aqueous solution 11 can be promoted to be rapidly decomposed and generate a large amount of carbon dioxide to promote the outer rubber envelope 10 to expand by virtue of the temperature rise of the hot extrusion device 9, on one hand, the flame-retardant mixed powder 5 in the storage cavity can be extruded by virtue of the deformation of the outer rubber envelope 10, so as to accelerate the decomposition efficiency of the flame-retardant mixed powder 5, on the other hand, the first piercing pins 13 can be promoted to pierce the outer rubber envelope 10 by virtue of the continuous deformation of the outer rubber, thereby improving the flame retardant efficiency of the cable body 1.
Referring to fig. 1-2, the outer end of the cable body 1 is fixedly connected with a water-absorbing layer 101, the water-absorbing layer 101 is made of water-absorbing silica gel material, the flame-retardant mixed powder 5 is prepared by mixing calcium bicarbonate powder and reducing iron powder, the mixing ratio of the calcium bicarbonate powder to the reducing iron powder is 1:1, and the calcium bicarbonate can absorb water entering between a cable body 1 and an external thermal variable flame-retardant film 2 by virtue of carbon dioxide and water generated after the calcium bicarbonate is heated and decomposed, thereby improving the flame retardant effect of the cable body 1, and reducing the possibility of combustion of the cable body 1 by consuming oxygen through the reaction of the reducing iron powder and the oxygen.
Referring to fig. 3-5, the first short piercing needle 6 is made of a nickel-titanium memory alloy material, the equilibrium temperature of the first short piercing needle 6 is 40 ℃, the first short piercing needle 6 is made of the nickel-titanium memory alloy material, so that the first short piercing needle 6 is hardened after the temperature is raised to the equilibrium temperature, the texture of the first short piercing needle 6 is hardened, the first short piercing needle 6 is made to puncture the outer thermal change flame retardant film 2 after the cable body 1 is wrapped by the outer thermal change flame retardant film 2, the outer rubber envelope 10 is embedded with a plurality of uniformly distributed nonmagnetic powder, the nonmagnetic powder is made of an iron-nickel memory alloy material with a nickel content of 80%, the nonmagnetic powder is made by the iron-nickel alloy material, the magnetic shielding of the traction magnetic ball 12 can be released after the outer rubber envelope 10 is expanded, so that the outer rubber envelope 10 is continuously expanded by means of the attraction of the magnetic adsorption ball 4 to the traction magnetic ball 12, outer rubber diolame 10 upper end fixedly connected with splits awl thorn 1001, and the length of splitting awl thorn 1001 is greater than the wall thickness of outer heat altered flame retardant film 2, through setting up splits awl thorn 1001, can continue the inflation back at outer rubber diolame 10, makes splits awl thorn 1001 punctures outer heat altered flame retardant film 2, makes the calcium carbonate powder that produces after its interior fire-retardant hybrid 5 reaction expose, with the help of calcium carbonate powder's flame retardant efficiency, can further improve the flame retardant efficiency to cable body 1.
A use method of a heat-wrapped air-blast flame-retardant cable comprises the following steps:
s1, the flame-retardant mixed powder 5 in the storage cavity can be promoted to be heated and decomposed by the temperature during combustion, and the thermal flexible guide rope 3 is promoted to be flexible by the change of the temperature;
s2, the outer thermal change flame-retardant films 2 are drawn to approach each other under the mutual attraction effect of the two magnetic adsorption balls 4 until the outer thermal change flame-retardant films 2 wrap the whole cable body 1;
s3, the first short puncture needle 6 can puncture the external thermal change flame-retardant film 2 when the external thermal change flame-retardant films 2 contact with each other, so that carbon dioxide gas and water generated by decomposition of the flame-retardant mixed powder 5 can be promoted to flow out.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (8)
1. The utility model provides a fire-retardant cable is dashed to heat parcel formula gas, includes cable body (1), its characterized in that: the outer end of the cable body (1) is fixedly connected with an outer heat-variable flame-retardant film (2), a storage cavity is chiseled in the outer heat-variable flame-retardant film (2), a plurality of heat soft guide ropes (3) which are uniformly distributed are arranged in the outer heat-changing flame-retardant film (2), a pair of magnetic adsorption balls (4) are embedded at the outer end of the thermal soft guide rope (3), the two magnetic adsorption balls (4) attract each other, the flame-retardant mixed powder (5) is filled in the outer heat-variable flame-retardant film (2), one ends of the outer heat-variable flame-retardant films (2) close to each other are fixedly connected with first short puncture needles (6), the outer end of the first short puncture needle (6) is fixedly connected with a plurality of main capillary claws (7) which are uniformly distributed, the outer end of the magnetic adsorption ball (4) is fixedly connected with a plurality of auxiliary capillary stabs (8) which are uniformly distributed, the inner wall of the outer thermal change flame-retardant film (2) is fixedly connected with a plurality of uniformly distributed hot extrusion devices (9).
2. The thermally wrapped air-impingement flame retardant cable of claim 1, wherein: the hot extrusion device (9) comprises an outer rubber coating (10) fixedly connected with the inner wall of the outer heat change flame-retardant film (2), a carbon dioxide water solution (11) is filled in the outer rubber coating (10), a traction magnetic ball (12) is fixedly connected with the inner wall of the outer rubber coating (10), and a pair of first puncture short needles (13) is fixedly connected with the outer end of the traction magnetic ball (12).
3. The thermally wrapped air-impingement flame retardant cable of claim 1, wherein: the cable body (1) outer end fixedly connected with layer (101) that absorbs water, layer (101) that absorbs water is made by the silica gel material that absorbs water.
4. The thermally wrapped air-impingement flame retardant cable of claim 1, wherein: the flame-retardant mixed powder (5) is prepared by mixing calcium bicarbonate powder and reducing iron powder, and the mixing ratio of the calcium bicarbonate powder to the reducing iron powder is 1: 1.
5. The thermally wrapped air-impingement flame retardant cable of claim 1, wherein: the first short puncture needle (6) is made of a nickel-titanium memory alloy material, and the equilibrium temperature of the first short puncture needle (6) is 40 ℃.
6. The thermally wrapped air-impingement flame retardant cable of claim 1, wherein: a plurality of uniformly distributed magnetic isolation powder is embedded in the outer rubber coating (10), and the magnetic isolation powder is made of an iron-nickel memory alloy material with the nickel content of 80%.
7. The thermally wrapped air-impingement flame retardant cable of claim 1, wherein: the upper end of the outer rubber envelope (10) is fixedly connected with a splitting prickle (1001), and the length of the splitting prickle (1001) is larger than the wall thickness of the outer thermal change flame-retardant film (2).
8. The method of using a heat-jacketed, air-blown, flame-retardant cable according to any of claims 1-7, wherein: the method comprises the following steps:
s1, the flame-retardant mixed powder (5) in the storage cavity can be promoted to be heated and decomposed by the temperature during combustion, and the thermal flexible guide rope (3) is promoted to be flexible by the change of the temperature;
s2, drawing the outer thermal change flame-retardant films (2) to approach each other under the mutual attraction effect of the two magnetic adsorption balls (4) until the outer thermal change flame-retardant films (2) wrap the whole cable body (1);
s3, the first short puncture needle (6) can puncture the external thermal change flame-retardant film (2) when the external thermal change flame-retardant films (2) are contacted with each other, so that carbon dioxide gas and water generated by decomposition of the flame-retardant mixed powder (5) are promoted to flow out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010958160.2A CN112086229A (en) | 2020-09-14 | 2020-09-14 | Hot wrapping type air-impact flame-retardant cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010958160.2A CN112086229A (en) | 2020-09-14 | 2020-09-14 | Hot wrapping type air-impact flame-retardant cable |
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| CN112086229A true CN112086229A (en) | 2020-12-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113808880A (en) * | 2021-07-29 | 2021-12-17 | 鄂宏娜 | Emergency flame-retardant circuit breaker |
| CN114725856A (en) * | 2022-05-03 | 2022-07-08 | 江苏上诚电缆有限公司 | Fire-resistant RVV cable protective layer |
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2020
- 2020-09-14 CN CN202010958160.2A patent/CN112086229A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113808880A (en) * | 2021-07-29 | 2021-12-17 | 鄂宏娜 | Emergency flame-retardant circuit breaker |
| CN113808880B (en) * | 2021-07-29 | 2023-10-31 | 国网福建省电力有限公司莆田供电公司 | Emergency flame-retardant circuit breaker |
| CN114725856A (en) * | 2022-05-03 | 2022-07-08 | 江苏上诚电缆有限公司 | Fire-resistant RVV cable protective layer |
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Application publication date: 20201215 |