Cold-resistant cable and device for supporting cold resistance of cable

Abstract

The invention discloses a cold-resistant cable and a device for supporting the cold resistance of the cable, and the cable comprises a butt-joint bottom frame, the lower side of the butt-joint bottom frame is fixedly connected with a grounding frame, the butt-joint bottom frame is detachably provided with a cover plate, and the upper side of the butt-joint bottom frame is detachably provided with a butt-joint top frame. And a mounting box is detachably mounted in the space in each two butt joint underframes. Through the cooperation of the thermal insulation layer, the thermal insulation layer, the core layer, the heat supply layer, the heating mechanism, the control mechanism and the temperature conduction mechanism, the cable can isolate external low temperature, has cold resistance protection of active heat supply, can have appropriate and constant working temperature, maintains the stability of basic power supply and signal transmission of the cable, and improves the service life of the cable. The cable can rapidly adapt to the temperature change influence caused by a sudden-change extreme environment, and can timely and rapidly troubleshoot a fault section and rapidly recover the power supply and signal transmission functions of the cable.

Description

Technical Field

[0001] The present invention relates to the field of cable power supply, in particular to a cold-resistant cable and a device for supporting the cold-resistant performance of the cable. Background Art

[0002] When power supply and signal transmission are carried out in cold areas, such as high altitude areas, snowfall areas, mountain peaks or polar cold areas, multi-layer cables with cold-proof functions are currently used. The current cold-proof cables only have a multi-layer cold-proof structure added to the cable structure.

[0003] There are still many disadvantages in using such cold-proof cables in cold areas. For example, they cannot adapt to sudden changes in extreme environments in a timely manner, causing the cables to be affected by sudden temperature changes, such as structural deformation, embrittlement and cold shrinkage, resulting in unstable power supply and signal transmission, and even the failure of the cable's cold-proof function, leading to failure of power supply and signal transmission of the entire cable line. After failure, it is also difficult to find the fault section in time and quickly restore the power supply and signal transmission capabilities of the entire line.

[0004] Therefore, it is necessary to develop a cold-resistant cable and a device for supporting the cold resistance of the cable to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a cold-resistant cable and a device for supporting the cold resistance of the cable. Through the cooperation of a thermal insulation layer, a heat preservation layer, a core layer, a heating layer, a heating mechanism, a control mechanism and a temperature conduction mechanism, the cable can be isolated from the external low temperature and has the cold resistance protection of active heating. The cable can have a suitable constant working temperature, maintain the stability of the basic power supply and signal transmission of the cable, quickly adapt to the temperature change impact brought about by sudden changes in extreme environments, and can promptly and quickly detect the fault section and quickly restore the power supply and signal transmission function of the cable.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cold-resistant cable, comprising a docking base frame, wherein the lower side of the docking base frame is fixedly connected to a grounding frame, the docking base frame is detachably installed with a cover plate, the upper side of the docking base frame is detachably installed with a docking top frame, the space inside each two docking base frames is detachably installed with an installation box, and the upper side of the installation box is fixedly connected to a docking box; the structure composed of each two mutually facing docking base frames and each two docking top frames is provided with a thermal insulation layer on both sides, the inner layer of the thermal insulation layer is provided with a thermal insulation layer, the inner layer of the thermal insulation layer is provided with a core layer, the end of the core layer is detachably sealed and installed at the adjacent docking box, and the center of the core layer is provided with a heating layer; the core layer is used to support the basic functions of the cold-resistant cable, the heating layer is used to heat the inside of the core layer, the thermal insulation layer is used to keep the temperature inside and the core layer from being easily dissipated to the outside, and the thermal insulation layer is used to isolate the internal and external temperatures from being easily exchanged.

[0007] As a further improvement of the present invention, the insulation layer includes a vacuum tube layer, and multiple groups of frames are installed in the double-layer stainless steel interlayer of the vacuum tube layer. The vacuum tube layer is installed between the docking base frame and the docking top frame, and the outer periphery of the vacuum tube layer is provided with a protective tube layer.

[0008] As a further improvement of the present invention, the insulation layer includes an insulation pipe layer, the outermost layer of the insulation pipe layer is fixedly installed on the innermost layer of each of the vacuum tube layers, and multiple groups of support frames are fixedly connected to the inner layers of the insulation pipe layer, and temperature sensors are installed on the lower side of the support frames.

[0009] As a further improvement of the present invention, the core layer includes an installation pipe layer, the inner layer of the installation pipe layer is covered with an insulating pipe layer, the heating layer is located in the middle of the insulating pipe layer, and the insulating pipe layer is covered with multiple groups of standard pipe layers arranged in a ring. The standard pipe layer is a power supply and communication cable for realizing the basic power transmission and basic communication functions of the cold-resistant cable. The signal line layer is covered at the lower side of the insulating pipe layer, and the insulating pipe layer is filled with an insulation filling layer. The installation pipe layer is used to connect with the adjacent docking box, and installation plates are placed on both sides of the installation pipe. The standard pipe layer, signal line layer and heating layer all pass through the adjacent installation plates, and the installation plates are used to cooperate with the docking box to assemble and fix the installation pipe layer.

[0010] As a further improvement of the present invention, the heating layer includes a heating pipe, which is assembled in the middle of the insulating pipe layer, and the heating pipe is sealed with a power supply wire layer.

[0011] A device for supporting the cold resistance of a cold-resistant cable, wherein a heating mechanism is provided at the lower left side of the docking box, and the heating mechanism is used to heat the insulation layer; a control mechanism is provided at the installation box and the space inside the docking box, and the control mechanism is used to control the temperature of the cold-resistant cable.

[0012] As a further improvement of the present invention, the heating mechanism includes an electric heating tube, which is installed at the middle position of the left side of the docking box. The electric heating tube extends into the insulation layer assembled on its left side. The electric heating tube is located on the inner wall of the docking box and is connected to an installation end, and the installation end is connected to the control mechanism.

[0013] As a further improvement of the present invention, the control mechanism includes an internal wiring rack, which is installed on the upper side of the docking box. The internal wiring rack is used to dock the core layers on both sides of the docking box. External wiring racks are installed on both sides of the installation box. The external wiring racks are used for emergency docking cables for power supply and signal transmission. A connecting wire rack is connected between the internal wiring rack and the external wiring rack. A controller and its battery are installed on the lower side wall of the installation box. The connecting wire rack, internal wiring rack, external wiring rack and the controller and its battery are electrically connected.

[0014] As a further improvement of the present invention, it also includes a heat conduction mechanism, which is arranged in the installation box and is used to quickly conduct heat in the insulation layer. The heat conduction mechanism includes a fixing frame, and the lower side wall of the installation box is fixedly connected to the fixing frame. A liquid pump is fixedly connected to the upper rear side of the fixing frame. A liquid suction pipe is fixedly connected to the suction end of the liquid pump. The liquid suction pipe passes through the rear side of the left side wall of the docking box and extends into the insulation layer. A pressure component is provided in the front upper side of the fixing frame, and the pressure component is connected to the liquid pump.

[0015] As a further improvement of the present invention, the pressurizing component includes a pressurizing pump, which is fixedly connected to the upper front side of the fixed frame. An interconnecting pipe is connected between the suction end of the pressurizing pump and the discharge end of the liquid pump. A liquid outlet pipe is fixedly connected to the discharge end of the pressurizing pump, and the liquid outlet pipe passes through the front of the left side wall of the docking box and extends into the insulation layer.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention adopts a method of disposing a standard pipe layer for basic power supply and signal transmission in a thermal insulation filling layer and an installation pipe layer within the core layer, and further disposing an outer thermal insulation layer with a liquid thermal conductive medium and a thermal insulation layer with a vacuum pipe layer. This method can isolate the standard pipe layer from the low temperature of the external environment and prevent the temperature in the thermal insulation layer from dropping too quickly.

[0018] 2. The present invention heats the liquid heat-conducting medium in the insulation layer to maintain a suitable temperature in the core layer where the standard pipe layer is located. Furthermore, by wrapping the standard pipe layer with the insulation filling layer, the temperature of the standard pipe layer will not increase or decrease sharply, thereby ensuring the stability of power supply and signal transmission of the standard pipe layer.

[0019] 3. The present invention adopts the method of instantaneous discharge of capacitors to make the power line layer heat the high latent heat material in the heating pipe, so that the heating pipe can continuously supply heat to the inside of the core line layer, further prolong the cold resistance time of the standard pipe layer, increase the working continuity of the standard pipe layer, and enable the core layer to have the functionality of directly supplying power and transmitting signals in an external low-temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the first cutaway three-dimensional structure of the present invention.

[0022] Figure 3 This is a schematic diagram of a second cutaway three-dimensional structure of the present invention.

[0023] Figure 4 This is a schematic diagram of a third cutaway three-dimensional structure of the present invention.

[0024] Figure 5 It is a partially cutaway three-dimensional structural schematic diagram of the present invention.

[0025] Figure 6 This is a schematic diagram of the first three-dimensional structure of the docking base frame part of the present invention.

[0026] Figure 7 This is a schematic diagram of a first cutaway three-dimensional structure of the docking chassis portion of the present invention.

[0027] Figure 8 It is a schematic diagram of the cutaway three-dimensional structure of the installation box part of the present invention.

[0028] Figure 9 It is a schematic diagram of the cutaway three-dimensional structure of the docking box part of the present invention.

[0029] Figure 10 This is a schematic diagram of the first cutaway three-dimensional structure of the thermal insulation layer of the present invention.

[0030] Figure 11 This is a schematic diagram of the second cutaway three-dimensional structure of the thermal insulation layer of the present invention.

[0031] Figure 12 It is a schematic diagram of the cutaway three-dimensional structure of the core layer of the present invention.

[0032] Figure 13 It is a schematic diagram of the cutaway three-dimensional structure of the heating layer part of the present invention.

[0033] Figure 14 This is a schematic diagram of the third cutaway three-dimensional structure of the thermal insulation layer of the present invention.

[0034] Figure 15 It is a schematic structural diagram of the right side of the thermal insulation layer of the present invention.

[0035] Figure 16 This is a schematic diagram of the second three-dimensional structure of the docking chassis part of the present invention.

[0036] Figure 17 This is a schematic diagram of a second cutaway three-dimensional structure of the docking chassis portion of the present invention.

[0037] Figure 18 This is a schematic diagram of the first three-dimensional structure of the control mechanism part of the present invention.

[0038] Figure 19 This is a schematic diagram of the second three-dimensional structure of the control mechanism part of the present invention.

[0039] Figure 20 This is a third three-dimensional structural diagram of the control mechanism part of the present invention.

[0040] Figure 21 It is a schematic diagram of the three-dimensional structure of the heat conduction mechanism of the present invention.

[0041] In the figure: 1_ docking base frame, 2_ grounding frame, 3_ cover plate, 4_ docking top frame, 5_ installation box, 6_ docking box, 7_ insulation layer, 8_ insulation layer, 9_ core layer, 10_ heating layer, 11_ heating mechanism, 12_ control mechanism, 71_ vacuum tube layer, 72_ skeleton, 73_ protection tube layer, 81_ insulation tube layer, 82_ support frame, 83_ temperature sensor, 91_ installation tube layer, 92_ installation plate, 93_ insulation tube layer, 94_ standard Pipe layer, 95_insulation filling layer, 96_signal line layer, 101_heating pipe, 102_power line layer, 111_electric heating pipe, 112_installation end, 121_inner wiring rack, 122_external wiring rack, 123_connecting wire rack, 124_controller and its battery, 13_temperature conduction mechanism, 131_fixing rack, 132_liquid pump, 133_liquid suction pipe, 14_pressurization component, 141_pressurization pump, 142_interconnecting pipe, 143_liquid outlet pipe. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] Example 1, as Figures 1-9As shown, a cold-resistant cable and a device for supporting the cold resistance of the cable include a docking base frame 1, a grounding frame 2, a cover plate 3, a docking top frame 4, an installation box 5, a docking box 6, a thermal insulation layer 7, a thermal insulation layer 8, a core layer 9, a heating layer 10, a heating mechanism 11 and a control mechanism 12. The number of docking base frames 1 is not unique. The docking base frames 1 are all structures with arc-shaped supports on the upper side. The docking base frames 1 are all structures with maintenance ports facing left and right. The edges of the opposite sides of each two docking base frames 1 facing each other are provided with a structure with an anti-low-temperature sealing ring. The two docking base frames 1 facing each other form a box structure with an outer edge closure through the anti-low-temperature sealing ring structure on the opposite sides. The docking base frames 1 facing each other form a box structure with an outer edge closure through the anti-low-temperature sealing ring structure on the opposite sides. The base frames 1 are fixedly connected by anti-low temperature fasteners, so that the box structure composed of each two mutually facing docking base frames 1 has outer edge sealing, and the lower side of the docking base frame 1 is fixedly connected to the grounding frame 2, and the grounding frame 2 is used to install the docking base frame 1 at the cable installation base surface in the high-cold area. The maintenance port structure of the docking base frame 1 can be detachably installed with a cover plate 3, and the cover plate 3 is detachably connected to the docking base frame 1 through anti-low temperature fasteners. The cover plate 3 and the maintenance port structure of the docking base frame 1 are contact-sealed by an anti-low temperature sealing ring. The upper side of the docking base frame 1 can be detachably installed with a docking top frame 4, and the number of the docking top frames 4 is the same as that of the docking base frame 1. The docking top frames 4 are all structures with arc-shaped supports on the lower side, and each two mutually The edges of the mutually facing butt joint frames 4 are all provided with anti-low temperature sealing ring structures, and each two mutually facing butt joint frames 4 form a box structure with outer edge closure through the anti-low temperature sealing ring structures on their opposite sides. Each two mutually facing butt joint frames 4 are fixedly connected by anti-low temperature fasteners, so that the box structure composed of each two mutually facing butt joint frames 4 has outer edge sealing, and the box structure composed of each two mutually facing butt joint frames 4 is detachably installed on the box structure composed of each two mutually facing butt joint frames 1 through anti-low temperature fasteners, so that the box structure composed of each two mutually facing butt joint frames 4 and the butt joint frames 1 together form a box for erecting the cold-resistant cable. The assembly box body is composed of each two mutually facing docking top frames 4 and docking bottom frames 1, and the assembly box body has outer edge sealing. The arc-shaped supporting structure position of each two mutually facing docking top frames 4 and docking bottom frames 1 corresponds to each other and presents two circular supporting structures in the left and right directions. The internal space of the box structure composed of each two mutually facing docking bottom frames 1 can be detachably installed with an installation box 5. The installation boxes 5 are structures with openings on both sides, and the installation boxes 5 are structures with openings on the upper side. The upper sides of the installation boxes 5 are fixedly connected to the docking boxes 6. The docking boxes 6 are structures with circular openings on both sides, and the left and right opening structures of the docking boxes 6 are structures with flange mounting plates. The docking boxes 6 and the upper opening structures of the installation boxes 5 are interconnected;The circular supporting structures on both sides of the assembly box for the cold-resistant cable, which are composed of every two mutually facing docking bottom frames 1 and every two docking top frames 4, are provided with a heat-insulating layer 7 of the cold-resistant cable. The inner layer of the heat-insulating layer 7 is provided with a heat-insulating layer 8. The inner layer of the heat-insulating layer 8 is provided with a core layer 9. The end of the core layer 9 is detachably sealed and installed at the flange mounting plate structure of the adjacent docking box 6. The inner center of the core layer 9 is provided with a heating layer 10. The heat-insulating layer 7, the heat-insulating layer 8, the core layer 9 and the heating layer 10 constitute the cold-resistant, power transmission and communication structure of the cold-resistant cable. The core layer 9 is used to support The basic functions of the cold-resistant cable are to transmit power to the area and to communicate with the area. The heating layer 10 is used to heat the inside of the core layer 9 in an emergency to support the cold-resistant function. The insulation layer 8 is used to limit the position of the core layer 9 therein so that the center of the core layer 9 is above the center of the insulation layer 8, and the space between the insulation layer 8 and the core layer 9 is larger than the area above it. The space between the insulation layer 8 and the core layer 9 is used to fill a liquid heat-conducting medium with heat-insulating properties and anti-low-temperature condensation properties. The liquid heat-conducting medium can be a mixed antifreeze of high-concentration ethylene glycol. Liquid, the thermal insulation layer 8 is used to monitor the temperature of the liquid heat-conducting medium filled therein, the thermal insulation layer 8 is used to keep the temperature of the interior and the core layer 9 from being easily dissipated to the outside, the thermal insulation layer 7 is used to isolate the low temperature of the outside from penetrating into the thermal insulation layer 8, and the thermal insulation layer 7 is used to isolate the temperature inside and outside from being easily exchanged; a heating mechanism 11 is provided at the lower position on the left side of the docking box 6, the heating mechanism 11 extends into the lower area with a larger area between the adjacent thermal insulation layer 8 and the core layer 9, the heating mechanism 11 is used to heat the liquid heat-conducting medium filled in the space between the thermal insulation layer 8 and the core layer 9, so that the liquid heat-conducting medium is heated. The heated liquid thermal conductivity medium maintains the temperature of the space between the insulation layer 8 and the core layer 9. A control mechanism 12 is provided in the space between the mounting box 5 and the docking box 6. This control mechanism 12 is used to dock the two core layers 9 assembled at the flange mounting plate structure of the docking box 6, allowing the two adjacent core layers 9 to communicate with each other, thus achieving interconnected power transmission and communication functions of the cold-resistant cable. The control mechanism 12 is used to control the temperature of the cold-resistant cable. The heating mechanism 11 and the control mechanism 12 together constitute a device that supports the cold-resistant cable's cold-resistant function.

[0044] like Figure 10-15As shown, the thermal insulation layer 7 includes a vacuum tube layer 71, a skeleton 72 and a protective tube layer 73. The number of vacuum tube layers 71 is not unique. The vacuum tube layers 71 are all made of double-layer stainless steel. The double-layer stainless steel interlayer of the vacuum tube layer 71 is a vacuum structure. Multiple sets of skeletons 72 are installed in the double-layer stainless steel interlayer of the vacuum tube layer 71. The skeleton 72 structure of the vacuum tube layer 71 is used to ensure that its vacuum structure is not affected by low temperature and causes deformation of the double-layer stainless steel structure. The vacuum tube layer 71 uses the vacuum structure to isolate the heat exchange inside and outside. The left and right end faces of the vacuum tube layer 71 are both structures with protruding rings. The vacuum tube layer 71 is sealed and installed on each of the docking base frame 1 and the docking top frame 4 through its protruding ring structure. In the circular supporting structure for erecting the cold-resistant cable assembly box, the outer wall of the docking box 6 located in the cold-resistant cable assembly box will be sealed and pressed against the end faces of the vacuum tube layer 71 on both sides thereof. The outer periphery of the vacuum tube layer 71 is adhesively wrapped with a protective tube layer 73. The protective tube layer 73 is low-temperature resistant rubber. The protective tube layer 73 is used to prevent the vacuum tube layer 71 from being damaged by external collisions and falling rocks in the field during transportation and assembly, as well as during erection and use, resulting in vacuum failure and insulation failure. The outer layer of the protective tube layer 73 is sprayed with multiple layers of low-temperature paint to prevent rodents from gnawing, so as to prevent the protective tube layer 73 from failing to provide collision protection for the vacuum tube layer 71.

[0045] like Figure 10-15 As shown, the insulation layer 8 includes an insulation pipe layer 81, a support frame 82 and a temperature sensor 83. The number of insulation pipe layers 81 is not unique. The insulation pipe layers 81 are all multi-layer composite insulation structures. The innermost layers of the insulation pipe layers 81 are all waterproof layer structures. The outermost layers of the insulation pipe layers 81 are all reflective film structures to reduce radiation heat dissipation. The middle layers of the insulation pipe layers 81 are all low thermal conductivity materials such as glass wool. The outermost layers of the insulation pipe layers 81 are fixedly installed on the innermost layers of each vacuum tube layer 71. The inner layers of the insulation pipe layers 81 are fixedly connected to multiple groups of support frames 82, and the support frames 82 are arc-shaped support frames. The support structure, the support frame 82 is used to place the core layer 9 and limit its position. The support frame 82 is used to make the lower space in the space formed by the core layer 9 and the vacuum tube layer 71 larger than the upper space. A temperature sensor 83 is installed on the lower side of the support frame 82. The temperature sensor 83 is a liquid temperature sensor. The space between the insulation layer 8 and the core layer 9 is used to fill a liquid temperature-conducting medium with thermal insulation performance and anti-low-temperature condensation performance. The liquid temperature-conducting medium can be a mixed antifreeze liquid with high concentration of ethylene glycol. The temperature sensor 83 is used to monitor the temperature of the liquid temperature-conducting medium filled therein.

[0046] like Figure 10-15As shown, the core layer 9 includes an installation tube layer 91, an installation plate 92, an insulating tube layer 93, a standard tube layer 94, an insulation filling layer 95 and a signal line layer 96. The installation tube layer 91 is made of a composite rubber material that is resistant to low-temperature deformation and waterproof. The inner layer of the installation tube layer 91 is covered with an insulating tube layer 93. The insulating tube layer 93 is made of insulating rubber material. The heating layer 10 is located in the middle of the insulating tube layer 93. The insulating tube layer 93 is covered with multiple groups of annularly arranged standard tube layers 94. The standard tube layer 94 is used to achieve the basic cold-resistant cable. The power supply and communication cables with power transmission and basic communication functions are covered with a signal line layer 96 at the lower side of the insulating tube layer 93. The signal line layer 96 is used to enable the cold-resistant devices supporting the cold-resistant cable to communicate and control with the outside world. The insulating tube layer 93 is filled with a thermal insulation filling layer 95. The thermal insulation filling layer 95 is used to buffer the temperature of the standard tube layer 94 and the external space and structure, and avoid the unstable power supply and signal output caused by the sudden change of temperature in the standard tube layer 94. The thermal insulation filling layer 95 can be paraffin and A composite material of fatty acid microcapsules; a mounting tube layer 91, an insulating tube layer 93, a standard tube layer 94, an insulating filling layer 95 and a signal line layer 96 are formed into a cable structure through a multiple extrusion process through an extruder. The mounting tube layer 91 protrudes from the plane of the insulating tube layer 93 at both ends. The protruding structure surface of the mounting tube layer 91 is a structure with multiple assembly holes. The multiple groups of assembly hole structures of the protruding structure of the mounting tube layer 91 are used to connect with the flange mounting plate structure of the adjacent docking box 6. A mounting plate 92 is placed in the protruding structure of the mounting tube. The mounting plate 92 is a circular structure. The circular structure surface of the mounting plate 92 is a structure with multiple assembly grooves. The assembly groove structure of the mounting plate 92 corresponds to the position of the assembly hole structure of the mounting tube layer 91. The mounting plate 92 is a structure with multiple holes on the surface. The standard tube layer 94, the signal line layer 96 and the heating layer 10 all pass through the surface hole structure of the adjacent mounting plate 92. The mounting plate 92 is used to cooperate with the flange mounting plate structure of the docking box 6 to assemble and fix the protruding structure of the mounting tube layer 91.

[0047] like Figure 10-15As shown, the heating layer 10 includes a heating pipe 101 and a power supply layer 102. The heating pipe 101 is assembled in the middle of the insulating pipe layer 93. The surface of the heating pipe 101 is covered by the thermal insulation filling layer 95. The heating pipes 101 are hollow pipe structures with closed ends. The heating pipes 101 have a dense protruding temperature conductive row structure on the surface. The heating pipes 101 are a composite material of copper wire and insulating rubber. The interior of the heating pipe 101 is filled with a high latent heat material. The high latent heat material inside the heating layer 10 can be microencapsulated paraffin. The interior of the heating pipe 101 is sealed with a power supply layer 102. The power supply layer 102 is in the heating pipe 1 The area inside 01 is a bare wire structure made of copper. The power supply wire layer 102 has an insulating sheath on the surfaces of both ends of the heating pipe 101 and outside both ends. The power supply wire layer 102 passes through the surface hole structure of the adjacent mounting plate 92. The power supply wire layer 102 is used to supply power to the device that supports the cold-resistant cable. The bare wire structure of the power supply wire layer 102 inside the heating pipe 101 is used to heat the high latent heat material filled therein, so that the high latent heat material filled inside the heating pipe 101 absorbs a large amount of heat and slowly dissipates it to the thermal insulation filling layer 95 to provide heat and insulation for the standard pipe layer 94.

[0048] like Figure 16-Figure 19 As shown, the heating mechanism 11 includes an electric heating tube 111 and a mounting end 112. The number of electric heating tubes 111 is not unique. Every two electric heating tubes 111 form a group and are installed together at the middle position on the left side of the docking box 6. Each group of electric heating tubes 111 installed at the docking box 6 extends into the larger lower area between the insulation layer 8 and the core layer 9 assembled on its left side. The electric heating tube 111 is used to heat the liquid temperature conductive medium filled between the insulation layer 8 and the core layer 9. The right end of the electric heating tube 111 passes through the docking box 6. The electric heating tube 111 is located on the inner wall of the docking box 6 and is connected to the mounting end 112. The mounting end 112 is connected to the control mechanism 12.

[0049] like Figures 16-20As shown, the control mechanism 12 includes an internal wiring rack 121, an external wiring rack 122, a connection rack 123 and a controller and its battery 124. The number of internal wiring racks 121 is not unique. The internal wiring racks 121 are all installed on the upper side of the docking box 6. The internal wiring rack 121 is a structure with multiple wiring terminals on both sides. The internal wiring rack 121 is used to connect the core layer 9 on both sides of the docking box 6. The terminal structures on both sides of the internal wiring rack 121 correspond to the end positions of the standard pipe layer 94, the power line layer 102 and the communication line layer assembled on both sides and are docked. External wiring racks 122 are installed near the opening structures on both sides of the installation box 5. The external wiring racks The rack 122 is a structure with multiple wiring terminals on opposite sides. The wiring terminal structure of the external wiring rack 122 is consistent with the wiring terminal structure of the internal wiring rack 121. The external wiring rack 122 is used for emergency docking cables for power supply and signal transmission. A connecting wire rack 123 is connected between the internal wiring rack 121 and the external wiring rack 122. A controller and its battery 124 are installed on the lower side wall of the installation box 5. The connecting wire rack 123, the internal wiring rack 121, the external wiring rack 122 and the controller and its battery 124 are electrically connected. The controller and its battery 124 have a circuit integration of multiple circuit breakers, multiple relays and multiple control chips.

[0050] like Figures 17-21 As shown, a temperature conducting mechanism 13 is also included. The temperature conducting mechanism 13 includes a fixing frame 131, a liquid pump 132, a liquid suction pipe 133 and a pressurizing assembly 14. The temperature conducting mechanism 13 is arranged in the installation box 5. The temperature conducting mechanism 13 extends into the space in the insulation layer 8 on the left side of the docking box 6. The temperature conducting mechanism 13 is used to quickly conduct heat to the liquid temperature conducting medium in the insulation layer 8. The lower side wall of the installation box 5 is fixedly connected to the fixing frame 131, and the upper rear side of the fixing frame 131 is fixedly connected to the liquid pump 132. The suction end of the liquid pump 132 is fixedly connected to the liquid suction pipe 133, and the liquid suction pipe 133 passes through the left side wall of the docking box 6. The rear portion extends into the thermal insulation layer 8, and a pressurizing component 14 is provided on the front upper side of the fixing frame 131, and the pressurizing component 14 is connected to the liquid pump 132; when the liquid pump 132 and the pressurizing component 14 are started, the liquid pump 132 will absorb the liquid heat-conducting medium from the thermal insulation layer 8 through the liquid suction pipe 133, and send it into the pressurizing component 14 through the discharge end of the liquid pump 132. The pressurizing component 14 will pressurize the liquid heat-conducting medium and re-transport it into the thermal insulation layer 8, so that the liquid heat-conducting medium in the thermal insulation layer 8 flows, and the liquid heat-conducting medium heated by the electric heating tube 111 flows quickly in the thermal insulation layer 8, thereby increasing the heat conduction capacity.

[0051] like Figure 21As shown, the pressurizing assembly 14 includes a pressurizing pump 141, an interconnecting pipe 142 and a liquid outlet pipe 143. The pressurizing pump 141 is fixedly connected to the upper front side of the fixing frame 131. The interconnecting pipe 142 is connected between the suction end of the pressurizing pump 141 and the discharge end of the liquid pump 132. The discharge end of the pressurizing pump 141 is fixedly connected to the liquid outlet pipe 143, which passes through the front of the left side wall of the docking box 6 and extends into the insulation layer 8; the liquid pump 132 will absorb the liquid heat-conducting medium from the insulation layer 8 through the suction pipe 133, and send it into the pressurizing pump 141 through the discharge end of the liquid pump 132 and the interconnecting pipe 142. The pressurizing pump 141 will pressurize the liquid heat-conducting medium and re-transport it into the insulation layer 8 through the liquid outlet pipe 143, so that the liquid heat-conducting medium in the insulation layer 8 flows.

[0052] Example 2, as Figures 1-21As shown, the installation process of the cold-resistant cable and the device for supporting the cold resistance of the cable is as follows: ① site selection and preparation of components, and transporting the cold-resistant cable and the components of the device for supporting the cold resistance of the cable to the required installation location; ② at one of the installation points, assemble an installation box 5 and a docking box 6, and install a control mechanism 12 therein, and install the wiring harness in the control mechanism 12, and then install the installation box 5 and the docking box 6 in two docking base frames 1 facing each other, and then merge and assemble the two docking base frames 1 facing each other; ② respectively insert the mounting plates 92 into the protrusions on the opposite sides of the mounting tube layers 91 of the two groups of core layers 9 on the left and right sides of the docking box 6. ③ The standard line layer, signal line layer 96 and power supply line layer 102 are respectively passed through the surface hole structure of the adjacent mounting plate 92, and then the standard line layer, signal line layer 96 and power supply line layer 102 that pass through the surface hole structure of the mounting plate 92 are respectively docked with the terminal of the adjacent internal wiring frame 121, so that the standard line layer, signal line layer 96 and power supply line layer 102 are electrically connected to the controller and its battery 124 for electrical control; ③ The protruding structure of the core layer 9 and the internally mounted mounting plate 92 are installed on the flange mounting plate structure of the adjacent docking box 6 through fasteners, so that the core layer 9 is installed on both sides of the docking box 6; ④ The thermal insulation layer 7 is covered on both sides of the docking box 6 through the thermal insulation layer 8. , and place the protruding ring structure on one side of the vacuum tube layer 71 of the thermal insulation layer 7 between the docking base frame 1 and the docking box 6 for sealing and pressing; ⑤ The two docking top frames 4 facing each other are respectively put on the thermal insulation layers 7 on both sides, so that the docking top frames 4 are respectively in sealing contact with the upper side of the docking base frame 1 below them, and the docking top frames 4 are fixed and sealed with fasteners, and then the lower side of the docking top frames 4 and the upper side of the docking base frame 1 are fixed and sealed with fasteners; ⑥ In this way, an assembly box for mounting the cold-resistant cable is formed by the box structure composed of the two docking top frames 4 and the docking base frame 1 facing each other, and the thermal insulation layer 7, thermal insulation layer 8, The core layer 9 and the heating layer 10 constitute the cold-resistant, power transmission and communication structure of the cold-resistant cable, and the heating mechanism 11 and the control mechanism 12 in the assembly box together constitute a device that supports the cold-resistant function of the cold-resistant cable; two cold-resistant cable structures can be installed on both sides of each device supporting the cold-resistant function of the cold-resistant cable, and the other end of the cold-resistant cable structure can be installed with the next group of devices supporting the cold-resistant function of the cold-resistant cable at the next point. Every two devices supporting the cold-resistant function of the cold-resistant cable and the cold-resistant cables assembled between them form a cold-resistant power supply and signal transmission segment. The segments are connected in series to ensure the function and stability of power supply and signal transmission in cold areas.

[0053] The cold-resistant working mode of the cold-resistant cable and the device for supporting the cold resistance of the cable is as follows: start the temperature sensor 83, the temperature sensor 83 will monitor the temperature of the liquid temperature-conducting medium filled in the insulation layer 8 and the core layer 9 in real time, and calculate and analyze the temperature data through the control chip of the controller and its battery 124 connected to it, so that the control chip of the controller and its battery 124 starts the electric heating pipe 111, and the electric heating pipe 111 is powered by the power line layer 102 at this time, so that the electric heating pipe 111 runs at a certain power to heat the liquid temperature-conducting medium filled in the insulation layer 8 and the core layer 9, and the heated liquid temperature-conducting medium in the insulation layer 8 will The space within the core layer 9 conducts heat, so that the standard tube layer 94 within the core layer 9 has a suitable working temperature for stable power supply and signal transmission; the vacuum tube layer 71 of the thermal insulation layer 7 isolates the heat exchange between the interior and the outside world, preventing the heated liquid thermal conductive medium in the thermal insulation layer 8 from losing temperature too quickly; and when the heated liquid thermal conductive medium conducts heat to the core layer 9, the heat will also be absorbed by the thermal insulation filling layer 95. The thermal insulation filling layer 95 will absorb a large amount of heat and release it slowly, so that the thermal insulation filling layer 95 can continuously release temperature to the space within the core layer 9, so that the standard tube layer 94 can be continuously heated, further improving the cold resistance of the standard tube layer 94.

[0054] The emergency response mode of the cold-resistant cable and the device for supporting the cold resistance of the cable in extreme environments is as follows: ① In an extremely low temperature environment, when there are blizzards, freezing rain, snowfall, mudslides, etc., if the environment affects the functionality of a certain segment, that is, the environmental impact destroys the insulation layer 7, causing the vacuum tube layer 71 to lose its vacuum effect and become difficult to isolate the external low temperature, the temperature in the insulation layer 8 will drop sharply, and the temperature sensor 83 of the segment will send information to the outside world through the controller and its battery 124 and the signal line layer 96, and send the segment and position of the abnormal information to the outside world. The outside world can send personnel for maintenance as needed, and increase the power of the electric heating tube 111 to perform high-power heating of the liquid temperature conducting medium in the segment to stabilize the insulation layer. 8 and the temperature in the core layer 9; ② ​​If the damage to the vacuum tube layer 71 causes the liquid heat-conducting medium in the insulation layer 8 to leak, causing the insulation layer 8 to fail, then the cooperation between the electric heating pipe 111 and the temperature sensor 83 will no longer be able to maintain the temperature of the core layer 9, and the monitoring data of the temperature sensor 83 cannot be changed due to the operation of the electric heating pipe 111. The segment and position where the abnormal information is located will also be sent to the outside world, and the outside world can send personnel for maintenance as needed. At this time, the temperature of the core layer 9 will gradually decrease until the temperature of the insulation filling layer 95 is lost. In the process of the temperature of the core layer 9 gradually decreasing, the power supply line layer 102 of the segment can be disconnected from the other segments through the controller and its battery 124, and the controller and The energy storage capacitor contained in the control chip in the battery 124 is turned on, so that the energy storage capacitor is charged and stored through the power supply line layer 102 of the previous segment, and the power supply line layer 102 of the segment disconnected from the interconnection is instantaneously discharged, so that the power supply line layer 102 of the segment disconnected from the interconnection is discharged through an instantaneous large current to release heat. The power supply line layer 102 of the segment will release heat through its bare wire structure in the heating pipe 101. The released heat will be absorbed by the high latent heat material in the heating pipe 101 and released to the insulation filling layer 95 through the structure of the heating pipe 101 for absorption. The insulation filling layer 95 will continue to heat the standard pipe layer 94 to resist cold. After instantaneous discharge, the power supply line layer 1 of the segment can be connected to the heat pipe 101 through the controller and its battery 124. 02 is interconnected with the previous segment, and the instantaneous discharge of the power supply line layer 102 of the segment is periodically controlled to provide heat; ③ If the extreme environment causes a segmental fault of the cold-resistant cable in a certain segment, resulting in the failure of the power supply and signal transmission of the entire line, the faulty segment can be quickly identified based on whether the data of the temperature sensor 83 of each segment is normal. After the faulty segment is identified, a core layer 9 can be directly used to connect to the external wiring rack 122 of the previous segment and the next segment that have not failed, so that the core layers 9 are interconnected with the controller and the battery through the external wiring rack 122, and the power supply and signal transmission of the entire line are quickly restored. Through the above process ②, the core layer 9 of the directly used and connected segment is heated to perform cold-resistant work;At the same time, the faulty segment can be replaced and maintained. ④ If the power supply line layer 102 of the faulty segment cannot supply power to the segments below it, the controllers and batteries 124 of the other segments will supply power to the power supply line layer 102 of the segment below it. Furthermore, the core line layer of the segment below it will be heated as described in the above process ② to prevent the core line layer of the other segments from being affected by low temperatures, causing deformation and embrittlement, and loss of insulation function.

[0055] Through the cooperation of the thermal insulation layer, heat preservation layer, core layer, heating layer, heating mechanism, control mechanism and temperature conduction mechanism, the cable can be isolated from the external low temperature and has the cold resistance protection of active heating. It can make the cable have a suitable constant working temperature, maintain the stability of the cable's basic power supply and signal transmission, and can quickly adapt to the temperature changes caused by sudden changes in extreme environments. It can timely and quickly detect the fault section and quickly restore the cable's power supply and signal transmission functions.

[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cold-resistant cable, characterized in that: The invention comprises a docking base frame (1), wherein the lower side of the docking base frame (1) is fixedly connected to a grounding frame (2), a cover plate (3) is detachably mounted on the docking base frame (1), a docking top frame (4) is detachably mounted on the upper side of the docking base frame (1), and an installation box (5) is detachably mounted in the space between each two docking base frames (1), and a docking box (6) is fixedly connected to the upper side of each installation box (5); A structure composed of two mutually facing docking bottom frames (1) and two docking top frames (4) is provided with a thermal insulation layer (7) on both sides, the inner layer of the thermal insulation layer (7) is provided with a thermal insulation layer (8), the inner layer of the thermal insulation layer (8) is provided with a core layer (9), the end of the core layer (9) is detachably sealed and installed at the adjacent docking box (6), and the inner center of the core layer (9) is provided with a heating layer (10).

2. The cold-resistant cable according to claim 1, characterized in that: The thermal insulation layer (7) comprises a vacuum tube layer (71), wherein a plurality of skeletons (72) are installed in the double-layer stainless steel interlayer of the vacuum tube layer (71), the vacuum tube layer (71) is installed between the docking bottom frame (1) and the docking top frame (4), and a protective tube layer (73) is provided on the outer periphery of the vacuum tube layer (71).

3. The cold-resistant cable according to claim 2, characterized in that: The thermal insulation layer (8) comprises a thermal insulation pipe layer (81), the outermost layer of the thermal insulation pipe layer (81) being fixedly mounted on the innermost layer of each vacuum pipe layer (71), the inner layers of the thermal insulation pipe layer (81) being fixedly connected to a plurality of support frames (82), and the lower sides of the support frames (82) being mounted with temperature sensors (83).

4. The cold-resistant cable according to claim 3, characterized in that: The core layer (9) includes an installation tube layer (91), the inner layer of the installation tube layer (91) is covered with an insulating tube layer (93), the heating layer (10) is located in the middle of the insulating tube layer (93), the insulating tube layer (93) is covered with multiple groups of annularly arranged standard tube layers (94), the standard tube layers (94) are power supply and communication cables for realizing the basic power transmission and basic communication functions of the cold-resistant cable, and the lower side of the insulating tube layer (93) is covered with signal lines. layer (96), the insulating tube layer (93) is filled with a thermal insulation filling layer (95), the mounting tube layer (91) is used to connect with the adjacent docking box (6), mounting plates (92) are placed on both sides of the mounting tube, the standard tube layer (94) and the signal line layer (96) and the heating layer (10) all pass through the adjacent mounting plates (92), and the mounting plates (92) are used to cooperate with the docking box (6) to assemble and fix the mounting tube layer (91).

5. The cold-resistant cable according to claim 4, characterized in that: The heating layer (10) comprises a heating pipe (101), the heating pipe (101) is assembled in the middle of the insulating pipe layer (93), and the heating pipe (101) is sealed with a power supply wire layer (102) inside.

6. A device for supporting the cold-resistant cable according to any one of claims 1 to 5, characterized in that: A heating mechanism (11) is provided at a lower position on the left side of the docking box (6), and the heating mechanism (11) is used to heat the insulation layer (8). A control mechanism (12) is provided in the space inside the installation box (5) and the docking box (6), and the control mechanism (12) is used to control the temperature of the cold-resistant cable.

7. The device for supporting the cable to withstand cold weather according to claim 6, characterized in that: The heating mechanism (11) comprises an electric heating pipe (111), which is installed at the middle position of the left side of the docking box (6), and extends into the insulation layer (8) assembled on the left side thereof. The electric heating pipe (111) is connected to an installation end (112) located on the inner wall of the docking box (6), and the installation end (112) is connected to the control mechanism (12).

8. The device for supporting the cable to withstand cold weather according to claim 7, characterized in that: The control mechanism (12) includes an internal wiring rack (121), which is installed on the upper side of the docking box (6). The internal wiring rack (121) is used to dock the core layers (9) on both sides of the docking box (6). External wiring racks (122) are installed on both sides of the installation box (5). The external wiring racks (122) are used for emergency docking cables to perform power supply and signal transmission. A connecting wire rack (123) is connected between the internal wiring rack (121) and the external wiring rack (122). A controller and its storage battery (124) are installed on the lower side wall of the installation box (5). The connecting wire rack (123), the internal wiring rack (121), the external wiring rack (122) and the controller and its storage battery (124) are electrically connected.

9. The device for supporting the cable to withstand cold weather according to claim 6, characterized in that: The heat conducting mechanism (13) is also included. The heat conducting mechanism (13) is arranged in the installation box (5). The heat conducting mechanism (13) is used to quickly conduct heat in the insulation layer (8). The heat conducting mechanism (13) includes a fixing frame (131). The fixing frame (131) is fixedly connected to the lower side wall of the installation box (5). A liquid pump (132) is fixedly connected to the upper rear side of the fixing frame (131). A liquid suction pipe (133) is fixedly connected to the suction end of the liquid pump (132). The liquid suction pipe (133) passes through the rear side of the left side wall of the docking box (6) and extends into the insulation layer (8). A pressure component (14) is provided at the upper front side of the fixing frame (131). The pressure component (14) is connected to the liquid pump (132).

10. The device for supporting the cable to withstand cold weather according to claim 9, characterized in that: The pressurizing assembly (14) includes a pressurizing pump (141), which is fixedly connected to the upper front side of the fixing frame (131). An interconnecting pipe (142) is connected between the suction end of the pressurizing pump (141) and the discharge end of the liquid pump (132). A liquid outlet pipe (143) is fixedly connected to the discharge end of the pressurizing pump (141). The liquid outlet pipe (143) passes through the front of the left side wall of the docking box (6) and extends into the thermal insulation layer (8).

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