CN112331398A - Fireproof and heat-resistant power transmission line structure - Google Patents
Fireproof and heat-resistant power transmission line structure Download PDFInfo
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- CN112331398A CN112331398A CN202011204943.8A CN202011204943A CN112331398A CN 112331398 A CN112331398 A CN 112331398A CN 202011204943 A CN202011204943 A CN 202011204943A CN 112331398 A CN112331398 A CN 112331398A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
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- 239000002184 metal Substances 0.000 claims description 51
- 238000003825 pressing Methods 0.000 claims description 23
- 230000002265 prevention Effects 0.000 claims description 22
- 239000011148 porous material Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 6
- 238000003892 spreading Methods 0.000 claims description 5
- 230000007480 spreading Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 5
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- 239000003063 flame retardant Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Classifications
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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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/005—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for cutting cables or wires, or splicing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- Health & Medical Sciences (AREA)
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- Business, Economics & Management (AREA)
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- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses a fireproof and heat-resistant power transmission line structure, which comprises a fireproof ring sleeved on the outer surface of a cable and used for cutting off flame when the outer surface of the cable catches fire, wherein the fireproof ring is sleeved on the outer ring of the cable so as to isolate the contact between external air and the outer surface of the cable and realize the flame spread of the outer ring of the cut-off cable; including the cutter that can cut off the cable, the tip of cutter is equipped with the pushing mechanism that can promote the cutter and remove, thereby cut off the flame that prevents cable one side with the cable when pushing mechanism promotes the cutter and removes and stretch to the opposite side, when the cable outside catches fire, the heat of cable outer lane risees, and the heat conduction becket receives the heat of cable surface and transmits this part heat for first temperature sensing sheetmetal through the heat conduction sheetmetal, thereby the pressfitting button starts pushing mechanism when first temperature sensing sheetmetal is heated and dilatational strain, and pushing mechanism promotes the cutter and cuts off the cable, realizes cutting off the effect that cable both sides intensity of a fire stretchs.
Description
Technical Field
The invention relates to the technical field of power transmission line structures, in particular to a fireproof and heat-resistant power transmission line structure.
Background
The transmission line structure is realized by using a transformer to boost the electric energy generated by a generator and then connecting the electric energy to the transmission line through control equipment such as a breaker and the like. The structure form, transmission line divide into overhead transmission line and cable run.
In the prior art, a power transmission line can generate a fire disaster, and when the power transmission line generates the fire disaster, the fire disaster is spread rapidly and is not easy to cut off, so that inestimable loss is easily caused; therefore, the power transmission line structure with fire resistance and heat resistance is provided to solve the problems.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a fireproof and heat-resistant power transmission line structure which comprises a fireproof ring sleeved on the outer surface of a cable and used for cutting off flame when the outer surface of the cable catches fire, wherein the fireproof ring is sleeved on the outer ring of the cable so as to isolate the contact between the outside air and the outer surface of the cable and realize the flame spread of the outer ring of the cut-off cable.
In order to achieve the above object, the present invention provides a fireproof and heat-resistant power transmission line structure, including:
the fireproof ring is sleeved on the outer surface of the cable and used for cutting off flame when the outer surface of the cable catches fire, and the fireproof ring is sleeved on the outer ring of the cable so as to isolate the contact between external air and the outer surface of the cable and realize the flame spread of the outer ring of the cut-off cable;
the cutting knife capable of cutting off the cable is characterized in that a pushing mechanism capable of pushing the cutting knife to move is arranged at the end of the cutting knife, and the pushing mechanism pushes the cutting knife to move so as to cut off the cable and prevent flame on one side of the cable from spreading to the other side.
According to the scheme, the inner rings at the two ends of the fireproof ring are provided with the pressing grooves, the pressing rings attached to the surfaces of the cables are arranged in the pressing grooves, and the inner walls of the pressing grooves are fixedly provided with the telescopic rods capable of pressing the pressing rings to the surfaces of the outer rings of the cables.
In this embodiment, the telescopic link is ordinary telescopic link, and the telescopic link can keep being compressed and compressing tightly the state of clamp ring department in the cable outer lane to fix the fire prevention ring on the cable, and the fire prevention ring sets up the both ends at the cable, and when the cable of middle section catches fire, the fire behavior that the fire prevention ring cut cable surface spreads, the good fire prevention purpose that has played.
As a further optimization of the scheme, the inside of the fireproof ring is provided with a cutter groove for accommodating the cutter, the outer ring of the fireproof ring is fixedly provided with a fireproof shell, and the bottom of the fireproof shell is provided with a pushing mechanism for pushing the cutter to move towards the cable and cut off the cable.
The pushing mechanism may be a fire-proof electric push rod or the like.
As a further optimization of the scheme, air cavities are arranged inside two ends of the fireproof ring, air supply units which are communicated with the air cavities and supply air into the air cavities are arranged on the surface of the fireproof ring, and air channels for discharging the air supplied into the air cavities along the outer ring of the cable are arranged on the side surfaces of the fireproof ring.
Furthermore, the air supply unit can use devices such as an air pump, when the air supply unit is started, air is supplied into the air cavity, the air entering the air cavity is uniformly discharged into the outer ring of the cable from the plurality of groups of air channels for heat dissipation, and the outer ring of the cable is prevented from being too high in temperature.
As a further optimization of the scheme, a hollow cavity for storing fire extinguishing dry powder is arranged in the middle of the inner part of the fire prevention ring, and a sealing cover for sealing the hollow cavity is arranged above the hollow cavity.
Concretely, closing cap accessible screw fixation is at hollow chamber top opening part, adds the dry powder of putting out a fire when being convenient for open, and it is required to conveniently be used for putting out a fire of cable.
As the further optimization of above-mentioned scheme, all be equipped with the intercommunicating pore with the air cavity intercommunication of both sides on the both sides inner wall in hollow chamber, the activity is provided with the movable shrouding of sealed in intercommunicating pore port department in the inner wall in hollow chamber, one side of movable shrouding is equipped with the font frame of cutting with a letter in bas, the fixed second heat-sensitive sheetmetal that can be heated the dilatancy and warp that is equipped with in the inner wall in hollow chamber, contradicts the font frame and removes and drive the movable shrouding and shift out from intercommunicating pore port department when the second heat-sensitive sheetmetal is heated the dilatancy and warp, at this moment, the dry powder of putting out a fire of hollow intracavity storage can be along with gas along with gaseous.
In this embodiment, when the cable surface catches fire, the heat around the cable risees, and when the heat rose was received to the second heat sensitive sheetmetal to the thermal expansion warp, contradict the concave character shape frame and remove and drive movable shrouding and follow the intercommunicating pore port department and shift out when the thermal expansion warp of second heat sensitive sheetmetal, at this moment, the dry powder of putting out a fire of hollow intracavity portion storage can be through the gaseous suction effect in passing through the air cavity and along with gaseous discharge to the cable surface from the air passage together.
As a further optimization of the proposal, one side of the fireproof ring is provided with a heat-conducting metal ring which is sleeved at the outer ring of the cable and is used for receiving the heat of the outer surface of the cable, one side of the heat-conducting metal ring is provided with an opening, the end part of the heat-conducting metal ring is fixedly provided with a heat-conducting metal sheet for transferring the heat-conducting metal ring to receive the heat on the outer surface of the cable, the end part of the heat-conducting metal sheet is fixed on the surface of the fireproof shell, the end part of the heat-conducting metal sheet is provided with a control groove, a first heat-sensitive metal sheet which receives heat transferred by the heat-conducting metal sheet and can be expanded and deformed by heating is arranged in the control groove, the surface of the fire-proof shell is provided with a button which controls the starting of the pushing mechanism and corresponds to one side of the first heat-sensitive metal sheet, when the first thermosensitive metal sheet is heated, expanded and deformed, the first thermosensitive metal sheet pressing button realizes the starting of the pushing mechanism, and the pushing mechanism pushes the cutter to move so as to cut off the cable.
It should be noted that, when the cable outside catches fire, the heat of cable outer lane risees, and the heat conduction becket receives the heat of cable surface and passes through the heat conduction sheetmetal with this part heat and transmit for first temperature sensing sheetmetal, thereby the pressfitting button starts pushing mechanism when first temperature sensing sheetmetal is heated and the dilatational strain, and pushing mechanism promotes the cutter and cuts off the cable, realizes cuting the effect that the cable both sides intensity of a fire spread, and the cutter uses the heat-resisting insulating material preparation of fire prevention.
As a further optimization of the scheme, the air cavity is of a circular groove structure and arranged around the outer ring of the cable, and the air channels are provided with multiple groups around the outer ring of the cable.
Specifically, the air channel uniformly sends the wind power passing through the air cavity into the outer ring of the cable, so that a good heat dissipation effect is achieved.
According to the scheme, the fireproof ring is composed of an upper semicircular ring and a lower semicircular ring, connecting plates which are mutually attached are fixedly arranged at the contact positions of the upper semicircular ring and the lower semicircular ring, the two groups of connecting plates which are mutually attached are fixed through screws, and the compression ring comprises an upper semicircular structure and a lower semicircular structure.
Further, but all fixed being equipped with on two sets of semicircular ring structures and two sets of semicircular structure's the contact surface and being used for sealed and elastic deformation carries out the elasticity flame retardant coating of dodging, has guaranteed the holistic leakproofness of fire prevention ring, also adapts to the telescopic link and compresses tightly the laminating in the outer lane department of cable.
The fireproof and heat-resistant power transmission line structure has the following beneficial effects:
1. the invention relates to a fireproof and heat-resistant power transmission line structure which comprises a fireproof ring, wherein the fireproof ring is sleeved on the outer surface of a cable and cuts off flame when the outer surface of the cable catches fire, and the fireproof ring is sleeved on the outer ring of the cable so as to isolate the contact between external air and the outer surface of the cable and realize the flame spread of the outer ring of the cut-off cable;
2. the invention relates to a fireproof and heat-resistant power transmission line structure which comprises a cutter capable of cutting off a cable, wherein a pushing mechanism capable of pushing the cutter to move is arranged at the end part of the cutter, the pushing mechanism pushes the cutter to move to cut off the cable so as to prevent flame on one side of the cable from spreading to the other side, when the outside of the cable catches fire, the heat of the outer ring of the cable rises, a heat-conducting metal ring receives the heat on the outer surface of the cable and transmits the part of the heat to a first heat-sensitive metal sheet through a heat-conducting metal sheet, a button is pressed when the first heat-sensitive metal sheet is heated and expands and deforms so as to start the pushing mechanism, and the pushing mechanism pushes the cutter to cut off the cable.
There have been disclosed in detail certain embodiments of the invention with reference to the following description and drawings, and it is to be understood that the embodiments of the invention are not limited thereby, but are intended to cover within the spirit and scope of the appended claims, many changes, modifications, and equivalents.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a plan cross-sectional view of a fire collar of the present invention;
FIG. 3 is a perspective cross-sectional view of a fire collar of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 3 according to the present invention;
fig. 6 is an enlarged view of the structure at C in fig. 3 according to the present invention.
In the figure: the fire-proof device comprises a cable 1, a fire-proof ring 2, a heat-conducting metal ring 3, a heat-conducting metal sheet 4, an expansion link 5, a cutter 6, a fire-proof shell 7, a hollow cavity 8, a sealing cover 9, an air supply unit 10, a communication hole 11, an air cavity 12, an air channel 13, a pressing groove 14, a pressing ring 15, a pushing mechanism 16, a control groove 17, a first heat-sensitive metal sheet 18, a button 19, a cutter groove 20, a connecting plate 21, a concave frame 22, a movable sealing plate 23 and a second heat-sensitive metal sheet 24.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
It should be noted that when an element is referred to as being "disposed on," or provided with "another element, it can be directly on the other element or intervening elements may also be present, when an element is referred to as being" connected, "or coupled to another element, it can be directly on the other element or intervening elements may be present, and" fixedly coupled "means that the element is fixedly coupled in many ways, which are not intended to be within the scope of the present disclosure, the terms" vertical, "" horizontal, "" left, "" right, "and the like are used herein for illustrative purposes only and are not intended to be a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items;
referring to the attached drawings 1-6 in the specification, the invention provides a technical scheme: a fire and heat resistant power transmission line structure comprising:
the fireproof ring 2 is sleeved on the outer surface of the cable 1 and used for cutting off flame when the outer surface of the cable 1 catches fire, and the fireproof ring 2 is sleeved on the outer ring of the cable 1 so as to isolate external air from contacting with the outer surface of the cable 1 and realize flame spread of the outer ring of the cut-off cable 1;
the cutting knife 6 can cut off the cable 1, the end part of the cutting knife 6 is provided with a pushing mechanism 16 which can push the cutting knife 6 to move, and the pushing mechanism 16 cuts off the cable 1 when pushing the cutting knife 6 to move, thereby preventing the flame on one side of the cable 1 from spreading to the other side.
The inner rings at the two ends of the fireproof ring 2 are provided with pressing grooves 14, pressing rings 15 attached to the surface of the cable 1 are arranged in the pressing grooves 14, and a telescopic rod 5 capable of pressing the pressing rings 15 to the surface of the outer ring of the cable 1 is fixedly arranged in the inner wall of each pressing groove 14.
In this embodiment, telescopic link 5 is ordinary telescopic link, and telescopic link 5 can keep being compressed and compress tightly the state of clamp ring 15 department in cable 1 outer lane to fix fire prevention ring 2 on cable 1, and fire prevention ring 2 sets up the both ends at cable 1, and when cable 1 at the middle section catches fire, fire prevention ring 2 cuts the intensity of a fire on cable 1 surface and spreads, the good fire prevention purpose that has played.
The inside of fire prevention ring 2 is equipped with the cutter groove 20 that holds cutter 6, and the outer lane of fire prevention ring 2 is fixed to be equipped with fire prevention shell 7, and the bottom of fire prevention shell 7 is equipped with the pushing mechanism 16 that promotes cutter 6 and remove and can cut off cable 1 towards cable 1.
The pushing mechanism 16 may be a fireproof electric push rod or the like.
Further, the air supply unit 10 may use an air pump or other devices, when the air supply unit 10 is started, air is supplied into the air cavity 12, and the air entering the air cavity 12 is uniformly discharged into the outer ring of the cable 1 from the plurality of sets of air channels 13 for heat dissipation, so as to avoid over-high temperature of the outer ring of the cable 1.
The inside intermediate position of fire prevention ring 2 is equipped with the hollow chamber 8 of storage dry powder of putting out a fire, and the top in hollow chamber 8 is equipped with the closing cap 9 that is used for sealed hollow chamber 8.
Specifically, closing cap 9 accessible screw fixation is at hollow cavity 8 top openings part, adds the dry powder of putting out a fire when being convenient for open, and it is required to conveniently be used for putting out a fire of cable 1.
All be equipped with the intercommunicating pore 11 with the air cavity 12 intercommunication of both sides on the both sides inner wall of hollow chamber 8, the activity is provided with the movable shrouding 23 of sealing in intercommunicating pore 11 port department in the inner wall of hollow chamber 8, one side of movable shrouding 23 is equipped with character cut in bas-relief frame 22, the fixed second temperature sensing sheetmetal 24 that is equipped with thermal expansion deformation in the inner wall of hollow chamber 8, conflict character cut in bas-relief frame 22 and remove and drive movable shrouding 23 and follow intercommunicating pore 11 port department and shift out when second temperature sensing sheetmetal 24 thermal expansion deformation, at this moment, the dry powder of putting out a fire of hollow chamber 8 inside storage can be through the gaseous suction effect in passing through air cavity 12 and along with gaseous together arrange to.
In this embodiment, when the outer surface of the cable 1 catches fire, the heat around the cable 1 rises, and when the second heat-sensitive metal sheet 24 receives the heat and rises, the second heat-sensitive metal sheet 24 expands and deforms by heating, and collides with the concave frame 22 to move and drive the movable sealing plate 23 to move out from the port of the communication hole 11, at this time, the fire extinguishing dry powder stored in the hollow cavity 8 can pass through the action of gas suction in the air cavity 12 and be discharged to the outer surface of the cable 1 from the air channel 13 along with the gas together for fire extinguishing.
One side of the fireproof ring 2 is provided with a heat-conducting metal ring 3 which is sleeved at the outer ring of the cable 1 and used for receiving the heat on the outer surface of the cable 1, one side of the heat-conducting metal ring 3 is opened, the end part of the heat-conducting metal ring 3 is fixedly provided with a heat-conducting metal sheet 4 which transmits the heat transmitted by the heat-conducting metal ring 3 and received by the heat on the outer surface of the cable 1, the end part of the heat-conducting metal sheet 4 is fixed on the surface of the fireproof shell 7, the end part of the heat-conducting metal sheet 4 is provided with a control groove 17, a first heat-sensitive metal sheet 18 which receives the heat transmitted by the heat-conducting metal sheet 4 and can be expanded and deformed by heating is arranged in the control groove 17, when the first heat-sensitive metal sheet 18 expands and deforms due to heating, the first heat-sensitive metal sheet 18 presses the button 19 to start the pushing mechanism 16, and the pushing mechanism 16 pushes the cutting knife 6 to move so as to cut off the cable 1.
It should be noted that, when the outside of the cable 1 catches fire, the heat of the outer ring of the cable 1 rises, the heat conducting metal ring 3 receives the heat of the outer surface of the cable 1 and transmits the heat to the first heat-sensitive metal sheet 18 through the heat conducting metal sheet 4, when the first heat-sensitive metal sheet 18 is heated and expands and deforms, the push button 19 is pressed to start the pushing mechanism 16, the pushing mechanism 16 pushes the cutter 6 to cut off the cable 1, so as to realize the function of cutting off the fire spreading on the two sides of the cable 1, and the cutter 6 is made of a fireproof heat-resistant insulating material.
The air cavity 12 is arranged around the outer ring of the cable 1 in a circular groove structure, and the air channels 13 are arranged in multiple groups around the outer ring of the cable 1.
Specifically, the air channel 13 uniformly sends the wind power passing through the air cavity 12 to the outer ring of the cable 1, so as to achieve a good heat dissipation effect.
The fireproof ring 2 is composed of an upper semicircular ring and a lower semicircular ring, the contact positions of the upper semicircular ring and the lower semicircular ring are fixedly provided with connecting plates 21 which are mutually attached, the two groups of connecting plates 21 which are mutually attached are fixed through screws, and the clamp ring 15 comprises an upper semicircular structure and a lower semicircular structure.
Further, but all fixed being equipped with on two sets of semicircular ring structures and two sets of semicircular structure's the contact surface and being used for sealed and elastic deformation carries out the elasticity flame retardant coating of dodging, has guaranteed 2 holistic leakproofness of fire prevention ring, also adapts to telescopic link 5 and compresses tightly the laminating of clamp ring 15 in cable 1's outer lane department.
The embodiment provides a fire-proof and heat-resistant power transmission line structure, which comprises the following working processes:
the outer ring of the cable 1 is sleeved with the fire-proof ring 2 to isolate the contact of external air and the outer surface of the cable 1 to realize the flame spread of the outer ring of the cut cable 1, the telescopic rod 5 can keep the state of being compressed and tightly pressing the pressing ring 15 at the outer ring of the cable 1, so that the fire-proof ring 2 is fixed on the cable 1, when the air supply unit 10 is started, air is fed into the air cavity 12, the air entering the air cavity 12 is uniformly discharged into the outer ring of the cable 1 from a plurality of groups of air channels 13 for heat dissipation, the overhigh temperature of the outer ring of the cable 1 is avoided, when the outer surface of the cable 1 catches fire, the heat around the cable 1 is increased, when the second heat-sensitive metal sheet 24 receives the heat increase, the second heat-sensitive metal sheet is expanded and deformed by heating, when the second heat-sensitive metal sheet 24 is expanded and deformed by heating, the second heat-sensitive metal sheet is abutted against the concave frame 22 to move to drive the movable sealing plate 23 to move Put out a fire to cable 1 surface, when cable 1 outside catches fire, the heat of cable 1 outer lane risees, and heat conduction becket 3 receives the heat of cable 1 surface and passes through heat conduction sheetmetal 4 with this part heat and transmit for first temperature sensing sheetmetal 18, thereby the pressfitting button 19 starts pushing mechanism 16 when first temperature sensing sheetmetal 18 is heated and the inflation deformation, and pushing mechanism 16 promotes cutter 6 and cuts off cable 1, realizes cutting off the effect that cable 1 both sides intensity of a fire stretchs.
It should be understood that the present invention is not limited to the particular embodiments described herein, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A fireproof and heat-resistant power transmission line structure is characterized by comprising:
the fireproof ring is sleeved on the outer surface of the cable and used for cutting off flame when the outer surface of the cable catches fire, and the fireproof ring is sleeved on the outer ring of the cable so as to isolate the contact between external air and the outer surface of the cable and realize the flame spread of the outer ring of the cut-off cable;
the cutting knife capable of cutting off the cable is characterized in that a pushing mechanism capable of pushing the cutting knife to move is arranged at the end of the cutting knife, and the pushing mechanism pushes the cutting knife to move so as to cut off the cable and prevent flame on one side of the cable from spreading to the other side.
2. The power transmission line structure of claim 1, characterized in that: the inner rings at the two ends of the fireproof ring are provided with pressing grooves, pressing rings attached to the surfaces of the cables are arranged in the pressing grooves, and telescopic rods capable of pressing the pressing rings to the surfaces of the outer rings of the cables are fixedly arranged in the inner walls of the pressing grooves.
3. The power transmission line structure of claim 1, characterized in that: the inside of fire prevention ring is equipped with and holds the cutter groove of cutter, the fixed fire prevention shell that is equipped with in outer lane of fire prevention ring, the bottom of fire prevention shell is equipped with the pushing mechanism who promotes the cutter and remove and can cut off the cable towards the cable.
4. The power transmission line structure of claim 1, characterized in that: the cable is characterized in that air cavities are arranged inside two ends of the fireproof ring, air supply units which are communicated with the air cavities and supply air into the air cavities are arranged on the surface of the fireproof ring, and air channels for discharging the air supplied into the air cavities along the outer circle of the cable are arranged on the side surfaces of the fireproof ring.
5. The power transmission line structure of claim 1, characterized in that: the inside intermediate position of fire prevention ring is equipped with the hollow chamber of storage dry powder of putting out a fire, the top in hollow chamber is equipped with the closing cap that is used for sealed hollow chamber.
6. The power transmission line structure of claim 1, characterized in that: all be equipped with the intercommunicating pore with the air cavity intercommunication of both sides on the both sides inner wall in hollow cavity, the activity is provided with the movable shrouding of sealing in intercommunicating pore port department in the inner wall in hollow cavity, one side of movable shrouding is equipped with character cut in bas-relief frame, the fixed second temperature sensing sheetmetal that can be heated the dilatancy in the inner wall in hollow cavity, conflict character cut in bas-relief frame when second temperature sensing sheetmetal is heated the dilatancy and remove and drive the movable shrouding and follow intercommunicating pore port department and shift out, at this moment, the dry powder of putting out a fire of hollow intracavity inside storage can be along with gas is arranged to the cable surface from gas channel department.
7. The power transmission line structure of claim 1, characterized in that: the fireproof shell is characterized in that a heat-conducting metal ring which is sleeved at the outer ring of the cable and used for receiving heat on the outer surface of the cable is arranged on one side of the fireproof ring, one side of the heat-conducting metal ring is opened, a heat-conducting metal sheet for transmitting the heat to the heat-conducting metal ring to receive the heat on the outer surface of the cable is fixedly arranged at the end of the heat-conducting metal ring, the end of the heat-conducting metal sheet is fixed on the surface of the fireproof shell, a control groove is formed in the end of the heat-conducting metal sheet, a first heat-sensitive metal sheet which receives the heat transmitted by the heat-conducting metal sheet and can expand and deform under heat is arranged in the control groove, a button which controls the pushing mechanism to start and corresponds to one side of the first heat-sensitive metal sheet is arranged on the surface of the fireproof shell, when the first heat-.
8. The power transmission line structure of claim 4, characterized in that: the air cavity is of a circular groove structure and arranged around the outer ring of the cable, and the air channels are provided with multiple groups around the outer ring of the cable.
9. The power transmission line structure of any one of claims 1 to 8, characterized in that: the fireproof ring is composed of an upper semicircular ring and a lower semicircular ring, connecting plates which are mutually attached are fixedly arranged at the contact positions of the upper semicircular ring and the lower semicircular ring, the two groups of connecting plates which are mutually attached are fixed through screws, and the compression ring comprises an upper semicircular structure and a lower semicircular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011204943.8A CN112331398B (en) | 2020-11-02 | 2020-11-02 | Fireproof and heat-resistant power transmission line structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011204943.8A CN112331398B (en) | 2020-11-02 | 2020-11-02 | Fireproof and heat-resistant power transmission line structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114743725A (en) * | 2022-04-15 | 2022-07-12 | 江苏迅达线缆有限公司 | High-strength fire-resistant cable |
| CN117277175A (en) * | 2023-11-22 | 2023-12-22 | 山东菏投润和能源科技有限公司 | Connection structure for cable bridge installation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389225B (en) * | 2021-12-31 | 2023-05-26 | 江苏英美迪自动化科技有限公司 | Emergency power-off power distribution cabinet for preventing line from being self-burning |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01124477A (en) * | 1987-11-06 | 1989-05-17 | Mitsubishi Electric Corp | Method for preventing fire spread of group cable |
| CN102136715A (en) * | 2011-01-24 | 2011-07-27 | 浙江大学 | Passive ground wire ice-melting controller |
| CN103845832A (en) * | 2012-11-30 | 2014-06-11 | 珠海格力电器股份有限公司 | Fire extinguishing apparatus and control method thereof, electric box, switch cabinet and electrical equipment |
| CN104201637A (en) * | 2014-07-24 | 2014-12-10 | 钟其达 | 64 to 220 kV high-voltage cable joint protection explosion-proof fire-proof box |
| CN104681196A (en) * | 2015-03-12 | 2015-06-03 | 安徽国华电缆集团有限公司 | Power cable suitable for high temperature environment |
| US20160045773A1 (en) * | 2014-08-12 | 2016-02-18 | Stephen Samouhos | Fire Stop Conduit |
| CN107120044A (en) * | 2017-03-23 | 2017-09-01 | 国家电网公司 | A kind of underground power cable passage Fire-proof door device |
| CN107633916A (en) * | 2017-09-26 | 2018-01-26 | 浙江德通科技有限公司 | A kind of double-deck high shielding boundling coaxial cable |
| CN207234370U (en) * | 2017-09-18 | 2018-04-13 | 四川赛康智能科技股份有限公司 | A kind of orientable cable intermediate joint protecting box |
| CN207269013U (en) * | 2017-10-24 | 2018-04-24 | 山东科技大学 | A kind of electric system protection device |
| CN207893268U (en) * | 2018-03-02 | 2018-09-21 | 北京利华消防工程有限公司 | A kind of fireproofing of cable plugging structure |
| CN208489031U (en) * | 2018-07-25 | 2019-02-12 | 安徽华通电缆集团有限公司 | A kind of Novel fireproof cable |
| CN209281912U (en) * | 2019-03-19 | 2019-08-20 | 河北高新电缆有限公司 | A kind of jamproof control cable of fire resisting environment-friendly type |
| CN211017591U (en) * | 2020-01-19 | 2020-07-14 | 郭少燕 | Fixing mechanism between transmission line and communication equipment |
-
2020
- 2020-11-02 CN CN202011204943.8A patent/CN112331398B/en not_active Expired - Fee Related
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01124477A (en) * | 1987-11-06 | 1989-05-17 | Mitsubishi Electric Corp | Method for preventing fire spread of group cable |
| CN102136715A (en) * | 2011-01-24 | 2011-07-27 | 浙江大学 | Passive ground wire ice-melting controller |
| CN103845832A (en) * | 2012-11-30 | 2014-06-11 | 珠海格力电器股份有限公司 | Fire extinguishing apparatus and control method thereof, electric box, switch cabinet and electrical equipment |
| CN104201637A (en) * | 2014-07-24 | 2014-12-10 | 钟其达 | 64 to 220 kV high-voltage cable joint protection explosion-proof fire-proof box |
| US20160045773A1 (en) * | 2014-08-12 | 2016-02-18 | Stephen Samouhos | Fire Stop Conduit |
| CN104681196A (en) * | 2015-03-12 | 2015-06-03 | 安徽国华电缆集团有限公司 | Power cable suitable for high temperature environment |
| CN107120044A (en) * | 2017-03-23 | 2017-09-01 | 国家电网公司 | A kind of underground power cable passage Fire-proof door device |
| CN207234370U (en) * | 2017-09-18 | 2018-04-13 | 四川赛康智能科技股份有限公司 | A kind of orientable cable intermediate joint protecting box |
| CN107633916A (en) * | 2017-09-26 | 2018-01-26 | 浙江德通科技有限公司 | A kind of double-deck high shielding boundling coaxial cable |
| CN207269013U (en) * | 2017-10-24 | 2018-04-24 | 山东科技大学 | A kind of electric system protection device |
| CN207893268U (en) * | 2018-03-02 | 2018-09-21 | 北京利华消防工程有限公司 | A kind of fireproofing of cable plugging structure |
| CN208489031U (en) * | 2018-07-25 | 2019-02-12 | 安徽华通电缆集团有限公司 | A kind of Novel fireproof cable |
| CN209281912U (en) * | 2019-03-19 | 2019-08-20 | 河北高新电缆有限公司 | A kind of jamproof control cable of fire resisting environment-friendly type |
| CN211017591U (en) * | 2020-01-19 | 2020-07-14 | 郭少燕 | Fixing mechanism between transmission line and communication equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114743725A (en) * | 2022-04-15 | 2022-07-12 | 江苏迅达线缆有限公司 | High-strength fire-resistant cable |
| CN117277175A (en) * | 2023-11-22 | 2023-12-22 | 山东菏投润和能源科技有限公司 | Connection structure for cable bridge installation |
| CN117277175B (en) * | 2023-11-22 | 2024-03-26 | 山东菏投润和能源科技有限公司 | Connection structure for cable bridge installation |
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|---|---|
| CN112331398B (en) | 2022-08-02 |
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