CN115602375A - Ultrahigh voltage cable with circulating heat dissipation function - Google Patents
Ultrahigh voltage cable with circulating heat dissipation function Download PDFInfo
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- CN115602375A CN115602375A CN202211394965.4A CN202211394965A CN115602375A CN 115602375 A CN115602375 A CN 115602375A CN 202211394965 A CN202211394965 A CN 202211394965A CN 115602375 A CN115602375 A CN 115602375A
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- heat dissipation
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- voltage cable
- expansion bag
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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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
- H01B7/425—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid the construction being bendable
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/185—Sheaths comprising internal cavities or channels
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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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
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Abstract
The application discloses be applied to superhigh pressure cable field's a superhigh pressure cable with circulation heat dissipation function, this application is through mutually supporting between radiating unit and the execution unit, the heat that produces when the conductor circular telegram passes through the spiral pipe and adsorbs, the adsorbed heat gets into the heat dissipation pipeline in the spiral pipe, and produce the heat exchange with the radiating fluid, form preliminary heat dissipation, when the heat that the conductor produced lasts to increase, part heat radiation to execution storehouse, in the expansion bag, the expansion bag is interior to be heated the inflation gas heated volume increase, promote the expansion bag to extrude the storehouse of changing heat, the torsion plate pressurized in the storehouse of changing heat takes place to deflect, make the volume in malleation storehouse reduce, the volume in negative pressure storehouse increases, force the radiating fluid in the radiating pipeline to take place to flow with higher speed, make because of the radiating fluid acceleration heat exchange of cold and hot layering, the radiating efficiency of spiral pipe has been increased, the simple structure of the invention can independently adjust radiating efficiency, the operating stability of superhigh pressure cable has effectively been ensured, has the prospect, and is suitable for popularization and application.
Description
Technical Field
The application relates to the field of ultrahigh voltage cables, in particular to an ultrahigh voltage cable with a circulating heat dissipation function.
Background
With the rapid development of economic construction, high-voltage long-distance large-section cables are widely used more and more, and the thermal stress on the high-voltage cables during operation is one of the main causes of power cable failure.
The ultrahigh voltage cable is used as an important carrier in a power transmission link, stable and safe operation of the cable is a prerequisite for system stability, and the conductor temperature is used as a key state parameter of the cable, so that the maximum current carrying capacity of the cable is determined, and the safe and stable operation of the cable is threatened. In addition, the ultrahigh voltage cable with a large cross section can generate larger thermal stress due to overhigh operating temperature, damage the cable structure and leave marks in the cable so as to generate partial discharge failure; meanwhile, the cable is deformed by the thermal stress, and the probability of accidents of the cable is improved due to the accumulated deformation after long-term operation.
The applicant designs a superhigh voltage cable capable of circularly radiating to improve the self radiating efficiency, prolong the service life and the use safety and ensure the safe and stable operation of the cable, and therefore the superhigh voltage cable with the circulating radiating function is provided to solve the problems.
Disclosure of Invention
The application aims to design an ultrahigh voltage cable structure, so that the ultrahigh voltage cable structure has a circulating heat dissipation function, the heat dissipation efficiency of the ultrahigh voltage cable structure is improved, the service life is prolonged, and the use safety is improved;
the heat exchange bin is of a cylindrical bin body structure, a rotating point of the torsion plate and a round point of the heat exchange bin are concentrically arranged, an elastic diaphragm is arranged in the heat exchange bin and arranged on two sides of the torsion plate, the heat exchange bin is divided into two groups of positive pressure bins and negative pressure bins by the elastic diaphragm, two groups of heat dissipation pipelines are arranged in the spiral tube, the input end and the output end of each heat dissipation pipeline are respectively communicated with the positive pressure bins and the negative pressure bins, and heat dissipation liquid is filled in the heat dissipation pipelines;
the internal insulation layer still is equipped with the execution storehouse in the both sides in heat transfer storehouse, be equipped with the execution unit in the execution storehouse, the execution unit includes inclosed expansion bag, be equipped with a plurality of interior gussets in the expansion bag, a plurality of interior gussets are the wave in the expansion bag and arrange, interior gusset separates into a plurality of expansion storehouses with the expansion bag inside, the expansion bag is circular-arc structure, the expansion storehouse intussuseption that is located the expansion bag circular arc inboard is filled with and receives thermal energy gas, the expansion storehouse intussuseption that is located the expansion bag circular arc outside is filled with non-Newtonian fluid.
The heat generated when the conductor is electrified is absorbed by the spiral pipe wound on the outer wall of the conductor, the absorbed heat enters a heat dissipation pipeline in the spiral pipe and exchanges heat with heat dissipation liquid to form primary heat dissipation, when the heat generated by the conductor is continuously increased, partial heat is radiated to the execution bin and the expansion bag, the heated volume of heated expansion gas in the expansion bin in the expansion bag is increased, the two ends of the expansion bag are further pushed to extend and extrude the outer wall of the heat exchange bin, the torsion plate in the heat exchange bin is pressed to deflect, the volume of the positive pressure bin is reduced, the volume of the negative pressure bin is increased, heat dissipation liquid in the heat dissipation pipeline communicated with the positive pressure bin and the negative pressure bin is forced to flow in an accelerated mode, heat dissipation liquid subjected to cold and hot layering is accelerated to exchange, and the heat dissipation efficiency of the spiral pipe is increased.
Furthermore, the gas heated by heat expansion is dioxide gas, one end of the expansion bag close to the heat exchange bin is arranged in an inclined shape, and the bin wall between the heat exchange bin and the execution bin is a flexible bin wall.
Furthermore, the torsion plate has elasticity close to the negative pressure bin, a sealing gasket is arranged at one end of the torsion plate, which is contacted with the bin wall of the heat exchange bin, and the sealing gasket enables the negative pressure bin and the positive pressure bin on the same side of the elastic diaphragm to be sealed separately.
Furthermore, the elasticity of the elastic diaphragm is not less than the filling pressure of the heat dissipation liquid of the heat dissipation pipeline in the spiral pipe.
Furthermore, the inner insulating layer is provided with heat conducting fins on the inner side of the circular arc of the expansion bag, a heat conducting pad is clamped between the heat dissipation filling layer and the heat conducting fins, and the heat conducting pad and the heat conducting fins are both of a heat conducting silica gel structure.
Furthermore, the inner rib plates are of rigid structures, flexible connection points are arranged between the two adjacent inner rib plates, and the two adjacent inner rib plates are connected through the flexible connection points to adjust the included angle.
Further, the heat dissipation filling layer comprises the following components in percentage by mass: 5-9 parts of aerogel particles, 5-10 parts of graphene powder, 2-3 parts of ceramic silicon rubber particles, 10-15 parts of micron-sized zirconia, 5-15 parts of organic silicon resin, 1-4 parts of coupling agent and 0.3-1 part of silicone oil.
Furthermore, a plurality of hoisting cores are uniformly arranged in the heat dissipation filling layer at equal angles, and the hoisting cores are of fan-shaped combined hoisting core structures.
Furthermore, the outer side of the conductor is sequentially coated with a semi-conducting belt and a conductor shielding layer, and an asphalt armor layer is clamped between the outer sheath and the outer inner insulating layer.
Furthermore, the outer and inner insulating layers are both XLPE insulating structures.
Compare in prior art, the advantage of this application lies in:
(1) The heat dissipation unit with the spiral pipe, the torsion plate and the heat dissipation liquid is matched with the execution unit with the expansion bag, the inner rib plate, the thermally expanded gas and the non-Newtonian fluid, when the cable is in actual use, heat generated by the conductor when the cable is electrified is absorbed by the spiral pipe wound on the outer wall of the conductor, the absorbed heat enters the heat dissipation pipeline in the spiral pipe and exchanges heat with the heat dissipation liquid to form primary heat dissipation, when the heat generated by the conductor is continuously increased, partial heat is radiated into the execution cabin and the expansion bag, the heated expansion gas in the expansion cabin in the expansion bag is heated to increase the heated volume, so that two ends of the expansion bag are pushed to extend and extrude the outer wall of the heat exchange cabin, and the torsion plate in the heat exchange cabin is pressed to deflect, so that the volume of the positive pressure cabin is reduced, the volume of the negative pressure cabin is increased, the heat dissipation liquid in the heat dissipation pipeline communicated with the positive pressure cabin and the negative pressure cabin is forced to flow in an accelerated manner, the heat dissipation liquid in a cold-hot layered heat exchange layer is accelerated manner, and the heat dissipation efficiency of the spiral pipe is increased.
(2) Adopt dioxide gas as receiving thermal expansion gas, its thermal expansion rate is high, make the inflation bag expand the percentage elongation increase after being heated, simultaneously when the conductor receives the radiating effect of spiral pipe and when stably reducing, the interior carbon dioxide temperature of inflation bag is followed and is reduced, and then make the inflation bag retract, twist reverse the board after losing the inflation extrusion effect of inflation bag, utilize the reverse torsion of self elasticity that resumes to reset, at this in-process, the volume increase in malleation storehouse, the volume in negative pressure storehouse reduces, the heat transfer velocity of flow of the radiating fluid in the heat dissipation pipeline has been accelerated once more, reach the radiating purpose of circulation.
(3) Through the elasticity setting to elastic diaphragm, when making the volume in malleation storehouse, negative pressure storehouse change, elastic diaphragm can not receive the hydraulic pressure influence of radiating fluid and influence the volume change in malleation storehouse, negative pressure storehouse, produces the malleation after making malleation storehouse volume diminish, produces the negative pressure after the volume in negative pressure storehouse diminishes, and the torsion plate can produce effectual pressure, pumps the radiating fluid and makes it take place effective flow, increases heat exchange efficiency.
(4) Through the setting of heat conduction fin and heat conduction pad, make partial heat that the conductor operation produced can loop through heat dissipation filling layer, heat conduction pad, heat conduction fin conduction to carry out the storehouse in, make the inflation bag be heated rapidly, heat-conduction efficiency is high.
(5) Through the design of the inner rib plate of the rigid structure, the expansion bin that the combination is located the expansion bag circular arc inboard is filled with and receives thermal expansion gas, the setting that is located the expansion bin outside the expansion bag circular arc is filled with non-Newton's fluid, on the one hand make the expansion bin of arc inboard be heated the inflation after, make adjacent inner rib plate take place the angle grow phenomenon along the flexonics point, and then effectively kept the expansion bag to extend along the circumferencial direction, for the board provides stable extrusion force that twists reverse, on the other hand, the combination forms the inner rib plate of triangle-shaped, make the circular arc outside impact resistance of expansion bag obtain promoting, combine the non-Newton's fluid of the interior intussuseption of circular arc outside expansion bin, when making it receive violent impact, can instantaneously become hard, and the cooperation receives the buffering of thermal expansion gas, reach the mesh of shocking resistance, the impact resistance of ultrahigh voltage cable has effectively been protected.
Drawings
FIG. 1 is a schematic front view of the present application;
FIG. 2 is a schematic view of the internal structure of the present application;
fig. 3 is a schematic structural diagram of a heat dissipation unit proposed in the present application;
FIG. 4 is a schematic cross-sectional view of an execution unit proposed in the present application;
FIG. 5 is a schematic cross-sectional structure of the present application;
FIG. 6 is an enlarged view of the portion A in FIG. 5;
FIG. 7 is a schematic front view of the internal structure of the present application;
fig. 8 is a schematic structural diagram of a heat dissipation unit and an execution unit provided in the present application;
FIG. 9 is a schematic view of the structure of the torsion plate in the heat exchange chamber proposed in the present application when it is not pressed;
fig. 10 is a schematic structural view of a torsion plate in the heat exchange chamber provided in the present application when the torsion plate is pressed.
The numbering in the figures illustrates:
the heat dissipation device comprises an outer sheath 1, an outer insulation layer 2, an inner insulation layer 3, an execution bin 31, heat conduction fins 32, a heat exchange bin 33, an elastic diaphragm 331, a positive pressure bin 332, a negative pressure bin 333, a heat dissipation filling layer 4, a heat conduction pad 41, a conductor 5, a hoisting core 6, a heat dissipation unit 7, a spiral pipe 71, a torsion plate 72, an execution unit 8, an expansion bag 81, an inner rib plate 82, heated expansion gas 83, non-Newtonian fluid 84 and heat dissipation liquid 9.
Detailed Description
The technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments, and all other embodiments obtained by a person of ordinary skill in the art without making creative efforts based on the embodiments in the present application belong to the protection scope of the present application.
Example 1:
the application discloses an ultrahigh-voltage cable with a circulating heat dissipation function, please refer to fig. 1-10, which comprises a plurality of conductors 5 distributed at equal angular intervals, wherein the outer sides of the plurality of conductors 5 are coated with a heat dissipation filling layer 4, the outer side of the heat dissipation filling layer 4 is sequentially coated with an inner insulating layer 3, an outer inner insulating layer 2 and an outer sheath 1, a heat dissipation unit 7 is arranged between the inner insulating layer 3 and the heat dissipation filling layer 4, the heat dissipation unit 7 comprises a spiral pipe 71 and a torsion plate 72, the spiral pipe 71 is spirally wound on the outer side of the conductor 5, a heat exchange bin 33 matched with the torsion plate 72 is arranged in the inner insulating layer 3, and the torsion plate 72 is rotatably connected in the heat exchange bin 33;
the heat exchange bin 33 is of a cylindrical bin body structure, the rotation point of the torsion plate 72 and a circular point of the heat exchange bin 33 are concentrically arranged, an elastic diaphragm 331 is arranged in the heat exchange bin 33, the elastic diaphragm 331 is arranged on two sides of the torsion plate 72, the elastic diaphragm 331 divides the interior of the heat exchange bin 33 into two groups of positive pressure bins 332 and negative pressure bins 333, two groups of heat dissipation pipelines are arranged in the spiral tube 71, the input end and the output end of each heat dissipation pipeline are respectively communicated with the positive pressure bins 332 and the negative pressure bins 333, and the heat dissipation pipelines are filled with heat dissipation liquid 9;
the inner insulation layer 3 is also provided with execution bins 31 on two sides of the heat exchange bin 33, execution units 8 are arranged in the execution bins 31, each execution unit 8 comprises a closed expansion bag 81, a plurality of inner rib plates 82 are arranged in the expansion bags 81, the inner rib plates 82 are arranged in the expansion bags 81 in a wave shape, the inner rib plates 82 divide the interior of the expansion bags 81 into a plurality of expansion bins, the expansion bags 81 are of an arc-shaped structure, the expansion bins positioned on the inner side of the arc of the expansion bags 81 are filled with heated expansion gas 83, and the expansion bins positioned on the outer side of the arc of the expansion bags 81 are filled with non-Newtonian fluid 84.
According to the invention, through the mutual matching of the heat dissipation unit 7 with the spiral pipe 71, the torsion plate 72 and the heat dissipation liquid 9 and the execution unit 8 with the expansion bag 81, the inner rib plate 82, the heated expansion gas 83 and the non-Newtonian fluid 84, in actual use, heat generated when the conductor 5 is electrified is absorbed through the spiral pipe 71 wound on the outer wall of the conductor, the absorbed heat enters the heat dissipation pipeline in the spiral pipe 71 and exchanges heat with the heat dissipation liquid 9 to form primary heat dissipation, when the heat generated by the conductor 5 is continuously increased, partial heat is radiated into the execution bin 31 and the expansion bag 81, the heated expansion gas 83 in the expansion bag 81 is increased in heated volume, and then the two ends of the expansion bag 81 are pushed to extend and extrude the outer wall of the heat exchange bin 33, at the moment, the torsion plate 72 in the heat exchange bin 33 is pressed to deflect, so that the volume of the positive pressure bin 332 is reduced, the volume of the negative pressure bin 333 is increased, the heat dissipation liquid 9 in the heat dissipation bin 332 is forced to flow in an accelerated manner, the positive pressure bin 333 is increased, the heat dissipation liquid 9 is accelerated, the positive pressure heat dissipation efficiency is forced to be increased, the negative pressure heat dissipation bin 71 is forced to be capable of accelerating the heat dissipation, the automatic regulation of the cable, the automatic heat dissipation structure is suitable for being popularized and the application, and the automatic heat dissipation efficiency is guaranteed, and the automatic regulation of the cable.
Specifically, referring to fig. 6-10, the heated expansion gas 83 is a dioxide gas, one end of the expansion bladder 81 close to the heat exchange chamber 33 is disposed in an inclined manner, the chamber wall between the heat exchange chamber 33 and the execution chamber 31 is a flexible chamber wall, the torsion plate 72 has an elastic force close to the negative pressure chamber 333, and one end of the torsion plate 72 contacting the chamber wall of the heat exchange chamber 33 is provided with a sealing gasket, which seals the negative pressure chamber 333 and the positive pressure chamber 332 on the same side of the elastic diaphragm 331 separately.
The carbon dioxide gas is used as the heat-receiving expansion gas 83, the heat expansion rate of the heat-receiving expansion gas is high, the expansion elongation of the expansion bag 81 after heating is increased, meanwhile, when the heat dissipation effect of the spiral pipe 71 of the conductor 5 is stably reduced, the temperature of the carbon dioxide in the expansion bag 81 is reduced along with the reduction of the temperature of the carbon dioxide, the expansion bag 81 is retracted, the torsion plate 72 reversely twists and resets by utilizing the self recovery elasticity after losing the expansion and extrusion effects of the expansion bag 81, in the process, the volume of the positive pressure cabin 332 is increased, the volume of the negative pressure cabin 333 is reduced, the heat exchange flow rate of the heat dissipation liquid 9 in the heat dissipation pipeline is accelerated again, and the purpose of circular heat dissipation is achieved.
Specifically, referring to fig. 9-10, the elastic force of the elastic diaphragm 331 is not less than the filling pressure of the heat dissipating liquid 9 in the heat dissipating pipeline of the spiral tube 71.
Through the elastic force setting of the elastic diaphragm 331, when the volumes of the positive pressure bin 332 and the negative pressure bin 333 are changed, the elastic diaphragm 331 is not influenced by the hydraulic pressure of the cooling liquid 9 to influence the volume change of the positive pressure bin 332 and the negative pressure bin 333, so that the positive pressure is generated after the volume of the positive pressure bin 332 is reduced, the negative pressure is generated after the volume of the negative pressure bin 333 is reduced, the torsion plate 72 can generate effective pressure, the cooling liquid 9 is pumped to enable the cooling liquid to effectively flow, and the heat exchange efficiency is improved.
Specifically, referring to fig. 5-7, the inner insulating layer 3 is provided with heat conducting fins 32 on the inner side of the arc of the expansion bladder 81, a heat conducting pad 41 is sandwiched between the heat dissipation filling layer 4 and the heat conducting fins 32, and both the heat conducting pad 41 and the heat conducting fins 32 are made of heat conducting silica gel.
Through the arrangement of the heat-conducting fins 32 and the heat-conducting pad 41, part of heat generated by the operation of the conductor 5 can be transmitted to the execution bin 31 sequentially through the heat-dissipation filling layer 4, the heat-conducting pad 41 and the heat-conducting fins 32, so that the expansion bag 81 is heated rapidly, and the heat conduction efficiency is high.
Specifically, referring to fig. 4, the inner rib plates 82 are rigid structures, a flexible connection point is arranged between two adjacent inner rib plates 82, and the angle between the two adjacent inner rib plates 82 is adjusted by the flexible connection point. Through the design of the inner rib plate 82 with a rigid structure, the expansion bin positioned on the inner side of the circular arc of the expansion bag 81 is filled with the thermally expanded gas 83, the expansion bin positioned on the outer side of the circular arc of the expansion bag 81 is filled with the non-Newtonian fluid 84, on one hand, after the expansion bin positioned on the inner side of the circular arc is heated and expanded, the adjacent inner rib plate 82 generates an angle enlargement phenomenon along a flexible connection point, further, the expansion bag 81 is effectively kept to extend along the circumferential direction, stable extrusion force is provided for the torsion plate 72, on the other hand, the triangular inner rib plate 82 is formed in a combined mode, the resistance of the outer side of the circular arc of the expansion bag 81 is improved, the non-Newtonian fluid 84 filled in the expansion bin positioned on the outer side of the circular arc is combined, when the expansion bag is violently impacted, the expansion bag can be instantly hardened, the impact resistance is achieved by being matched with the buffering of the thermally expanded gas 83, and the impact resistance of the ultrahigh-voltage cable is effectively protected.
It should be noted that the heat dissipation filling layer 4 includes the following components by mass: 5-9 parts of aerogel particles, 5-10 parts of graphene powder, 2-3 parts of ceramic silicon rubber particles, 10-15 parts of micron-sized zirconia, 5-15 parts of organic silicon resin, 1-4 parts of coupling agent and 0.3-1 part of silicone oil, wherein a plurality of hoisting cores 6 are uniformly arranged in the heat dissipation filling layer 4 at equal angles, the hoisting cores 6 are of a fan-shaped combined hoisting core structure, the outer side of the conductor 5 is sequentially wrapped with a semi-conducting belt and a conductor shielding layer, an asphalt armor layer is clamped between the outer sheath 1 and the outer and inner insulating layers 2, and the outer and inner insulating layers 2 and 3 are of XLPE insulating structures.
The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions or changes according to the technical solutions and modifications of the present application should be covered by the scope of the present application.
Claims (10)
1. The utility model provides an ultra-high voltage cable with circulation heat dissipation function, includes a plurality of equiangular distance conductor (5) of arranging separately, and is a plurality of the outside cladding of conductor (5) has heat dissipation filling layer (4), the outside of heat dissipation filling layer (4) has cladding inner insulating layer (3), outer inner insulating layer (2) and oversheath (1) in proper order, its characterized in that, be equipped with radiating unit (7) between inner insulating layer (3) and heat dissipation filling layer (4), radiating unit (7) include spiral pipe (71) and twist reverse board (72), spiral pipe (71) are the heliciform and twine in the outside of conductor (5), be equipped with in inner insulating layer (3) and twist reverse board (72) assorted heat transfer storehouse (33), it connects in heat transfer storehouse (33) to twist reverse board (72) rotation;
the heat exchange bin (33) is of a cylindrical bin body structure, the rotation point of the torsion plate (72) and a round point of the heat exchange bin (33) are concentrically arranged, an elastic diaphragm (331) is arranged in the heat exchange bin (33), the elastic diaphragm (331) is arranged on two sides of the torsion plate (72), the elastic diaphragm (331) divides the heat exchange bin (33) into two groups of positive pressure bins (332) and negative pressure bins (333), two groups of heat dissipation pipelines are arranged in the spiral pipe (71), the input ends and the output ends of the heat dissipation pipelines are respectively communicated with the positive pressure bins (332) and the negative pressure bins (333), and heat dissipation liquid (9) is filled in the heat dissipation pipelines;
the heat exchange device is characterized in that execution bins (31) are further arranged on two sides of the heat exchange bin (33) of the inner insulating layer (3), execution units (8) are arranged in the execution bins (31), each execution unit (8) comprises a closed expansion bag (81), a plurality of inner rib plates (82) are arranged in each expansion bag (81), the inner rib plates (82) are arranged in the expansion bags (81) in a wave shape, the inner rib plates (82) divide the inside of each expansion bag (81) into a plurality of expansion bins, each expansion bag (81) is of an arc-shaped structure, the expansion bins on the inner side of the arc of each expansion bag (81) are filled with heat-expanded gas (83), and the expansion bins on the outer side of the arc of each expansion bag (81) are filled with non-Newtonian fluid (84).
2. The ultrahigh-voltage cable with the circulating heat dissipation function as recited in claim 1, wherein the thermally expanded gas (83) is a dioxide gas, one end of the expansion bag (81) close to the heat exchange chamber (33) is arranged in an inclined manner, and a chamber wall between the heat exchange chamber (33) and the execution chamber (31) is a flexible chamber wall.
3. The ultrahigh-voltage cable with the circulating heat dissipation function as recited in claim 1, wherein the torsion plate (72) has an elastic force close to the negative pressure chamber (333), and a sealing gasket is arranged at one end of the torsion plate (72) contacting with the chamber wall of the heat exchange chamber (33), and the sealing gasket separates and seals the negative pressure chamber (333) and the positive pressure chamber (332) on the same side of the elastic diaphragm (331).
4. Ultra-high voltage cable with cyclic heat dissipation function according to claim 1, wherein the elastic force of the elastic membrane (331) is not less than the filling pressure of the heat dissipation liquid (9) of the heat dissipation pipeline in the spiral tube (71).
5. The ultra-high voltage cable with the circulating heat dissipation function as recited in claim 1, wherein the inner insulating layer (3) is provided with heat conducting fins (32) at the inner side of the arc of the expansion bag (81), a heat conducting pad (41) is sandwiched between the heat dissipation filling layer (4) and the heat conducting fins (32), and the heat conducting pad (41) and the heat conducting fins (32) are both of a heat conducting silica gel structure.
6. The ultra-high voltage cable with the circulating heat dissipation function according to claim 1, wherein the inner rib plates (82) are of a rigid structure, flexible connection points are arranged between two adjacent inner rib plates (82), and the angle of the connection included angle of the two adjacent inner rib plates (82) is adjusted through the flexible connection points.
7. Ultrahigh-voltage cable with circulating heat dissipation function according to claim 1, characterized in that the heat dissipation filler layer (4) comprises the following components by mass: 5-9 parts of aerogel particles, 5-10 parts of graphene powder, 2-3 parts of ceramic silicon rubber particles, 10-15 parts of micron-sized zirconia, 5-15 parts of organic silicon resin, 1-4 parts of coupling agent and 0.3-1 part of silicone oil.
8. The ultrahigh-voltage cable with the circulating heat dissipation function according to claim 1, wherein a plurality of hoisting cores (6) are uniformly distributed in the heat dissipation filling layer (4) at equal angles, and the hoisting cores (6) are of a fan-shaped combined hoisting core structure.
9. The ultrahigh-voltage cable with the circulating heat dissipation function according to claim 1, wherein a semi-conductive tape and a conductor shielding layer are sequentially coated outside the conductor (5), and an asphalt armor layer is sandwiched between the outer sheath (1) and the outer and inner insulating layers (2).
10. Ultrahigh-voltage cable with circulating heat dissipation function according to claim 1, characterized in that the outer and inner insulating layers (2, 3) are both XLPE insulating structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211394965.4A CN115602375A (en) | 2022-11-08 | 2022-11-08 | Ultrahigh voltage cable with circulating heat dissipation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211394965.4A CN115602375A (en) | 2022-11-08 | 2022-11-08 | Ultrahigh voltage cable with circulating heat dissipation function |
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| Publication Number | Publication Date |
|---|---|
| CN115602375A true CN115602375A (en) | 2023-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211394965.4A Pending CN115602375A (en) | 2022-11-08 | 2022-11-08 | Ultrahigh voltage cable with circulating heat dissipation function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116386948A (en) * | 2023-04-10 | 2023-07-04 | 河南庆州电缆有限公司 | Composite cable with high heat dissipation efficiency |
| CN116665982A (en) * | 2023-07-07 | 2023-08-29 | 宝辉线缆集团有限公司 | Wear-resistant and sun-proof high-voltage power cable |
| CN117438145A (en) * | 2023-10-25 | 2024-01-23 | 深圳市红旗电工科技有限公司 | Cable for new energy automobile |
-
2022
- 2022-11-08 CN CN202211394965.4A patent/CN115602375A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116386948A (en) * | 2023-04-10 | 2023-07-04 | 河南庆州电缆有限公司 | Composite cable with high heat dissipation efficiency |
| CN116386948B (en) * | 2023-04-10 | 2024-02-06 | 河南庆州电缆有限公司 | Composite cable with high heat dissipation efficiency |
| CN116665982A (en) * | 2023-07-07 | 2023-08-29 | 宝辉线缆集团有限公司 | Wear-resistant and sun-proof high-voltage power cable |
| CN116665982B (en) * | 2023-07-07 | 2023-10-24 | 宝辉线缆集团有限公司 | Wear-resistant and sun-proof high-voltage power cable |
| CN117438145A (en) * | 2023-10-25 | 2024-01-23 | 深圳市红旗电工科技有限公司 | Cable for new energy automobile |
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