阅读说明：本技术 一种用于高寒地区的抗冻线缆 (Anti-freezing cable for alpine regions ) 是由 胡东华 张彪 陆兵 于 2021-10-27 设计创作，主要内容包括：本发明公开了一种用于高寒地区的抗冻线缆,属于复合电缆领域,一种用于高寒地区的抗冻线缆,包括外绝缘层,外绝缘层的内壁上固定连接有内保护层,内保护层的内设有一对副线缆,一对副线缆之间连接有导热层,内保护层内设有主线芯,两个副线缆之间设有密封胶层,导热层的左右两宽头端相连并将主线芯包覆,导热层包括导热膜主体,一对副线缆分别固定连接在导热膜主体内壁的两宽头端,导热膜主体内填充有保护胶层,保护胶层内混有多个均匀分布的蓄热颗粒,外绝缘层的外壁上固定连接有与导热层相匹配的节段环,本方案可以实现在线缆表面凝结冰层时,使线缆自发热,以融解线缆表面冰层,使线缆表面不易凝胶较厚的冰层。(The invention discloses a freeze-proof cable for alpine regions, which belongs to the field of composite cables and comprises an outer insulating layer, wherein an inner protective layer is fixedly connected to the inner wall of the outer insulating layer, a pair of auxiliary cables are arranged in the inner protective layer, a heat-conducting layer is connected between the pair of auxiliary cables, a main cable core is arranged in the inner protective layer, a sealing adhesive layer is arranged between the two auxiliary cables, the left wide end and the right wide end of the heat-conducting layer are connected with each other and wrap the main cable core, the heat-conducting layer comprises a heat-conducting film main body, the pair of auxiliary cables are respectively and fixedly connected to the two wide ends of the inner wall of the heat-conducting film main body, a protective adhesive layer is filled in the heat-conducting film main body, a plurality of uniformly distributed heat-storage particles are mixed in the protective adhesive layer, and segment rings matched with the heat-conducting layer are fixedly connected to the outer wall of the outer insulating layer, so that the cable can realize self-heating when an ice layer is condensed on the surface of the cable, so as to melt the ice layer on the surface of the cable, and the thicker ice layer is not easy to gel on the surface of the cable.)

1. A freeze resistant cable for alpine regions, comprising an outer insulation layer (1), characterized in that: an inner protection layer (2) is fixedly connected to the inner wall of the outer insulation layer (1), a pair of auxiliary cables (3) is arranged in the inner protection layer (2), a plurality of outer thread grooves which are uniformly distributed are formed in the insulation layer on the outer surface of each auxiliary cable (3), a heat conduction layer (4) is connected between the pair of auxiliary cables (3), a main cable core (5) is arranged in the inner protection layer (2), a sealing adhesive layer (10) is arranged between the two auxiliary cables (3), two ends of each heat conduction layer (4) are fixedly bonded with the main cable cores (5) through the sealing adhesive layer (10), the left wide end and the right wide end of each heat conduction layer (4) are connected with each other to coat the main cable cores (5), each heat conduction layer (4) comprises a heat conduction film main body (401), the pair of auxiliary cables (3) are respectively and fixedly connected with the two wide ends of the inner wall of the heat conduction film main body (401), and a protection adhesive layer (402) is filled in the heat conduction film main body (401), a plurality of heat storage particles (6) which are uniformly distributed are mixed in the protective adhesive layer (402), the outer wall of the outer insulating layer (1) is fixedly connected with a segment ring (7) matched with the heat conducting layer (4), the section ring (7) comprises a pair of semicircular rings (701) which are mutually clamped, an electric heating device (702) is arranged in each semicircular ring (701), a plurality of heating thorns (703) are fixedly connected to the electric heating device (702), the heating thorns (703) penetrate through the outer insulating layer (1) and the inner protective layer (2) and are inserted into the heat conducting layer (4), two ends of the segment ring (7) are respectively connected with an infrared light transmitter (8) and a light receiver (9), the distance between the light output end of the infrared light transmitter (8) and the surface of the outer insulating layer (1) is 2-7mm, the positions of the infrared light transmitter (8) and the light receiver (9) are matched with each other.

2. Anti-freeze cable for alpine regions, according to claim 1, characterized in that: the manufacturing process comprises the following steps:

s1, fixing the pair of auxiliary cables (3) at equal intervals, and wrapping the heat conduction layer (4) between the pair of auxiliary cables (3);

s2, vacuumizing one end of the heat conduction layer (4) by using a vacuum machine, sucking liquid heat conduction silica gel into the other end of the heat conduction layer (4), and filling the gap between the auxiliary cable (3) and the heat conduction layer (4) with the heat conduction silica gel;

s3, after the two ends of the heat conduction layer (4) are sealed, wrapping the main wire core (5) by using the heat conduction layer (4), and bonding the two ends of the heat conduction layer (4) by using a sealing adhesive layer (10) during wrapping to finish wire core preparation;

and S4, sequentially coating an inner protective layer (2) and an outer insulating layer (1) on the wire core to finish the preparation of the cable.

3. Anti-freeze cable for alpine regions, according to claim 2, characterized in that: and when the main wire core (5) is wrapped in the step S3, controlling the temperature of the heat conduction layer (4) to be 30-40 ℃ so that the heat conduction silica gel in the heat conduction layer (4) is in a molten state.

4. Anti-freeze cable for alpine regions, according to claim 1, characterized in that: the middle part of the inner wall of the heat-conducting film main body (401) is fixedly connected with a plurality of supporting plates (403) which are uniformly distributed, the supporting plates (403) are made of heat-insulating materials, and the length of each supporting plate (403) is one fourth of the circumference of the main wire core (5).

5. Anti-freeze cable for alpine regions, according to claim 1, characterized in that: the anti-freezing regulation and control system comprises a controller, wherein the controller is arranged in a section ring (7) and is provided with an anti-freezing regulation and control system board, and an infrared light transmitter (8), a light receiver (9) and an electric heating device (702) are all electrically connected with the controller.

6. Anti-freeze cable for alpine regions, according to claim 1, characterized in that: an annular groove is formed in the outer wall of the section ring (7), a fixing ring is connected in the annular groove in a clamping mode, and a fixing frame is fixedly connected to the fixing ring.

7. Anti-freeze cable for alpine regions, according to claim 1, characterized in that: the heat storage particles (6) comprise heat storage cores (601), the heat storage cores (601) are made of graphene, heat absorption coating layers (602) are coated on the heat storage cores (601), and the surfaces of the heat absorption coating layers (602) are subjected to chemical etching treatment.

8. Anti-freeze cable for alpine regions, according to claim 1, characterized in that: the protective rubber layer (402) is made of thermoplastic heat-conducting silicon rubber, and flame-retardant powder is mixed in the protective rubber layer (402).

9. Anti-freeze cable for alpine regions, according to claim 1, characterized in that: the installation method of the segment ring (7) comprises the following steps: referring to a cable laying design drawing, a straight-line cable is selected to install a section ring (7), when the section ring (7) is installed, a pair of semicircular rings (701) is clamped on an outer insulating layer (1) at equal intervals, a heating thorn (703) on the inner side of the section ring (7) penetrates into a heat conduction layer (4), finally, a fixing ring is sleeved on the section ring (7), and a fixing frame adaptive to an installation environment is installed on the fixing ring.

Technical Field

The invention relates to the field of composite cables, in particular to an anti-freezing cable for alpine regions.

Background

Cable is a generic term for optical cables, electrical cables, and the like. The cable has many purposes, is mainly used for controlling installation, connecting equipment, transmitting power and other multiple functions, and is a common and indispensable object in daily life. Installation requires special care since the cable is live. The photoelectric composite low-voltage cable (photoelectric composite cable for short) determines the complexity of the cable structure due to the diversity of functions, but the functions of the composite cable can be better realized and met as long as a reasonable structural design is provided, the manufacturing cost is reduced while the manufacturing standard is met, and the maximization of the benefit is realized. The structure of the composite cable is generally composed of two main parts, namely a cable core and a sheath, wherein the sheath comprises a sheath and an outer sheath, and the outer sheath can be present or absent as required.

The anti ability of freezing of cable on the existing market is poor to make when outdoor temperature is lower, the cable can not the stable performance, thereby be unfavorable for the protection to the cable, especially to severe cold district, when the cable surface ice layer that condenses, cause the injury to the cable easily, thereby influence the cable and normally work.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide the anti-freezing cable for the alpine region.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A freeze proof cable for alpine regions comprises an outer insulating layer, an inner protective layer is fixedly connected to the inner wall of the outer insulating layer, a pair of auxiliary cables are arranged in the inner protective layer, a plurality of outer thread grooves which are uniformly distributed are formed in the insulating layer of the outer surface of each auxiliary cable, a heat conduction layer is connected between the pair of auxiliary cables, a main cable core is arranged in the inner protective layer, a sealing adhesive layer is arranged between the two auxiliary cables, two ends of the heat conduction layer are fixedly bonded with the main cable core through the sealing adhesive layer, the left wide end and the right wide end of the heat conduction layer are connected with each other and wrap the main cable core, the heat conduction layer comprises a heat conduction film main body, the pair of auxiliary cables are respectively and fixedly connected with the two wide ends mixed with the inner wall of the heat conduction film main body, a protective adhesive layer is filled in the heat conduction film main body, a plurality of uniformly distributed heat storage particles are arranged in the protective adhesive layer, and a segment ring matched with the heat conduction layer is fixedly connected to the outer wall of the outer insulating layer, the festival section ring includes the semicircle ring of a pair of mutual joint, install electric heating device in the semicircle ring, a plurality of heating thorns of fixedly connected with on the electric heating device, in the heating thorn runs through outer insulation layer and interior protective layer and inserts the heat conduction layer, this scheme can realize making cable self-heating when the cable surface condenses the ice sheet, in order to melt cable surface ice sheet, makes the difficult thick ice sheet of gel in cable surface.

A freeze-resistant cable for alpine regions is manufactured by the following steps:

s1, firstly, fixing the pair of auxiliary cables at equal intervals, and then wrapping a heat conduction layer between the pair of auxiliary cables;

s2, vacuumizing one end of the heat conduction layer by using a vacuum machine, and sucking liquid heat conduction silica gel into the other end of the heat conduction layer to fill the gap between the auxiliary cable and the heat conduction layer;

s3, after the two ends of the heat conduction layer are sealed, wrapping the main wire core by using the heat conduction layer, and bonding the two ends of the heat conduction layer by using a sealing adhesive layer during wrapping to finish wire core preparation;

and S4, sequentially coating an inner protective layer and an outer insulating layer on the wire core to finish the preparation of the cable.

Furthermore, the two ends of the segment ring are respectively connected with an infrared light transmitter and a light receiver, the distance between the light output end of the infrared light transmitter and the surface of the outer insulating layer is 2-7mm, the positions of the infrared light transmitter and the light receiver are matched with each other, after the ice layer is condensed on the surface of the cable, light emitted by the infrared light transmitter is refracted by the ice layer, the light receiver cannot receive light emitted by the infrared light transmitter, and the condensed thicker ice layer on the cable can be judged at the moment.

Further, when wrapping the main wire core in the step S3, controlling the temperature of the heat conducting layer to be 30-40 ℃, so that the heat conducting silica gel in the heat conducting layer is in a molten state, and when the main wire core extrudes the heat conducting layer, the heat conducting silica gel in the heat conducting layer can be extruded to two sides.

Further, a plurality of evenly distributed supporting plates are fixedly connected to the middle of the inner wall of the heat-conducting film main body, the supporting plates are made of heat-insulating materials, the length of each supporting plate is one fourth of the circumference of the main wire core, the supporting plates are used for supporting the main wire cores, when the heat-conducting layers coat the main wire cores, the heat-conducting silica gel which is extruded to two ends of the heat-conducting layers cannot be completely isolated, heat of the protection adhesive layers on the left side and the right side of the main wire cores can be mutually transmitted, and the temperature of the protection adhesive layers on the left side and the right side of the main wire cores is easy to keep consistent.

Further, a freeze proof cable for severe cold district, includes a regulation and control system prevents frostbite, the controller of regulation and control system board installation in the segmental ring prevents frostbite, infrared light transmitter, light receiver and electric heating device all with controller electric connection.

Furthermore, an annular groove is formed in the outer wall of the section ring, a fixing ring is connected in the annular groove in a clamped mode, and a fixing frame is fixedly connected to the fixing ring, so that the installation of cables is facilitated.

Further, the heat storage particles comprise heat storage cores, the heat storage cores are made of graphene, heat absorption coating layers are coated on the heat storage cores, and the surfaces of the heat absorption coating layers are subjected to chemical etching treatment.

Furthermore, the protective adhesive layer is made of thermoplastic heat-conducting silicon rubber, and flame-retardant powder is mixed in the protective adhesive layer.

Further, the installation method of the segment ring comprises the following steps: the design is laid to the reference cable, select the straightway cable to carry out the installation of festival ring, when installing the festival ring, a pair of semicircle ring of equidistant joint on the outer insulating layer, make the inboard heating of festival ring pierce through in the heat conduction layer of stinging, at last the solid fixed ring of noose on the festival ring, and install the mount that adapts to the installation environment on solid fixed ring, the festival ring is installed at straightway equidistance, make infrared light transmitter and light receiver normally workable, and make things convenient for the wiring installation of a plurality of solid fixed rings.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme can realize when the cable surface ice layer that condenses, makes cable self-heating to melt cable surface ice layer, make the difficult thick ice layer of gel in cable surface.

(2) The both ends of festival ring are connected with infrared light transmitter and light receiver respectively, and the interval between the light output end of infrared light transmitter and the outer insulating layer surface is 2-7mm, and infrared light transmitter matches each other with light receiver's position, and after the cable surface ice layer that condenses, the light that infrared light transmitter jetted out is refracted by the ice sheet, and light receiver can't receive the light that infrared light transmitter jetted out, can judge the thick ice sheet that condenses on the cable this moment.

(3) When wrapping the main wire core in the step of S3, controlling the temperature of the heat conducting layer to be 30-40 ℃, enabling the heat conducting silica gel in the heat conducting layer to be in a molten state, enabling the main wire core to extrude the heat conducting layer, enabling the heat conducting silica gel in the heat conducting layer to be extruded to two sides, fixedly connecting a plurality of supporting plates which are uniformly distributed in the middle of the inner wall of the heat conducting film main body, wherein the supporting plates are made of heat insulating materials, the length of each supporting plate is one fourth of the circumference of the main wire core, and are used for supporting the main wire core.

(4) The installation method of the segment ring comprises the following steps: the design is laid to the reference cable, select the straightway cable to carry out the installation of festival ring, when installing the festival ring, a pair of semicircle ring of equidistant joint on the outer insulating layer, make the inboard heating of festival ring pierce through in the heat conduction layer of stinging, at last the solid fixed ring of noose on the festival ring, and install the mount that adapts to the installation environment on solid fixed ring, the festival ring is installed at straightway equidistance, make infrared light transmitter and light receiver normally workable, and make things convenient for the wiring installation of a plurality of solid fixed rings.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 3;

FIG. 5 is a side cross-sectional view of the present invention;

FIG. 6 is a side view of the present invention after installation;

FIG. 7 is a schematic view of the structure of a heat-accumulating pellet of the present invention;

fig. 8 is a flow chart of a cable manufacturing process of the present invention.

The reference numbers in the figures illustrate:

the heat-insulation and heat-insulation composite material comprises an outer insulating layer 1, an inner protective layer 2, 3 pairs of cables, 4 heat-conduction layers, a heat-conduction film main body 401, a protective adhesive layer 402, a 403 supporting plate, a main wire core 5, heat-storage particles 6, a heat-storage core 601, a heat-absorption coating 602, a section ring 7, a semicircular ring 701, an electrothermal device 702, a heating pin 703 and a sealant layer 10.

Detailed Description

In this embodiment 1, the technical solution will be clearly and completely described in conjunction with the disclosed drawings, so that the purpose, technical solution and beneficial effects of the embodiments of the present disclosure will be more clear. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" and similar words are intended to mean that the elements or items listed before the word cover the elements or items listed after the word and their equivalents, without excluding other elements or items. "upper", "lower", "inside", "outside", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Example (b):

referring to fig. 1-4 and 7, a freeze resistant cable for use in alpine regions includes an outer insulating layer 1, an inner protective layer 2 fixedly connected to an inner wall of the outer insulating layer 1, a pair of sub cables 3 disposed in the inner protective layer 2, a plurality of uniformly distributed external thread grooves formed in the insulating layer on an outer surface of the sub cables 3, a protective adhesive layer 402 disposed in the external thread grooves for covering an outer side of the sub cables 3 so as to transmit heat generated by the sub cables, a heat conductive layer 4 connected between the pair of sub cables 3, a main core 5 disposed in the inner protective layer 2, a sealant layer 10 disposed between the two sub cables 3, two ends of the heat conductive layer 4 bonded and fixed to the main core 5 through the sealant layer 10, left and right wide ends of the heat conductive layer 4 connected to and covering the main core 5, the heat conductive layer 4 including a heat conductive film main body 401, the pair of sub cables 3 respectively fixedly connected to two wide ends of the inner wall of the heat conductive film main body 401, the heat-conducting film main body 401 is filled with a protective adhesive layer 402, a plurality of uniformly distributed heat storage particles 6 are mixed in the protective adhesive layer 402, each heat storage particle 6 comprises a heat storage core 601, each heat storage core 601 is made of graphene, the heat storage core 601 is coated with a heat absorption coating 602, and the surface of the heat absorption coating 602 is subjected to chemical etching treatment.

Referring to fig. 2-4, a plurality of supporting plates 403 are uniformly distributed and fixedly connected to the middle portion of the inner wall of the main body 401 of the heat conductive film, the supporting plates 403 are made of a heat insulating material, the length of the supporting plates 403 is one fourth of the circumference of the main core 5, the supporting plates 403 are used for supporting the main core 5, when the main core 5 is covered by the heat conductive layer 4, the heat conductive silica gel squeezed to the two ends of the main core 5 in the heat conductive layer 4 is not completely isolated, the heat of the protective adhesive layers 402 on the left and right sides of the main core 5 can be mutually transferred, and the temperature of the protective adhesive layers 402 on the left and right sides of the main core 5 can be easily kept consistent. The protective adhesive layer 402 is made of thermoplastic heat-conducting silicone rubber, and flame retardant powder is mixed in the protective adhesive layer 402.

Referring to fig. 3-6, a segment ring 7 matched with the heat conduction layer 4 is fixedly connected to the outer wall of the outer insulation layer 1, the segment ring 7 includes a pair of semicircular rings 701 clamped with each other, an electric heating device 702 is installed in the semicircular rings 701, a plurality of heating pins 703 are fixedly connected to the electric heating device 702, and the heating pins 703 penetrate through the outer insulation layer 1 and the inner protection layer 2 and are inserted into the heat conduction layer 4.

The installation method of the segment ring 7 comprises the following steps: referring to a cable laying design drawing, a straight-line cable is selected to install the section ring 7, when the section ring 7 is installed, a pair of semicircular rings 701 is clamped on the outer insulating layer 1 at equal intervals, so that the heating stabs 703 on the inner side of the section ring 7 penetrate into the heat conduction layer 4, finally, a fixing ring is sleeved on the section ring 7, and a fixing frame adaptive to an installation environment is installed on the fixing ring. The outer wall of the segment ring 7 is provided with an annular groove, the annular groove is internally connected with a fixing ring in a clamping manner, and the fixing ring is fixedly connected with a fixing frame, so that the installation of a cable is facilitated.

The utility model provides a freeze proof cable for severe cold district, includes a frostproofing regulation and control system, and the controller in festival ring 7 is installed to the regulation and control system board that prevents frostbite, and infrared light transmitter 8, light receiver 9 and electric heating device 702 all are connected with controller electric connection. The both ends of section ring 7 are connected with infrared light transmitter 8 and light receiver 9 respectively, the interval between the light output end of infrared light transmitter 8 and 1 surface of external insulation layer is 2-7mm, infrared light transmitter 8 matches each other with light receiver 9's position, after the ice sheet condenses on the cable surface, the light that infrared light transmitter 8 jetted out is refracted by the ice sheet, the light that infrared light transmitter 8 jetted out can't be received to light receiver 9, can judge the thick ice sheet that condenses on the cable this moment.

Referring to fig. 8, a freeze resistant cable for use in alpine regions is manufactured by the following steps:

s1, firstly, fixing the pair of auxiliary cables 3 at equal intervals, and then wrapping the heat conduction layer 4 between the pair of auxiliary cables 3;

s2, vacuumizing one end of the heat conduction layer 4 by using a vacuum machine, sucking liquid heat conduction silica gel at the other end of the heat conduction layer 4, forming a protective glue layer 402 after the filled heat conduction silica gel is solidified, filling the heat conduction silica gel in a gap between the auxiliary cable 3 and the heat conduction layer 4, and controlling the temperature of the heat conduction layer 4 to be 30-40 ℃ when wrapping the main wire core 5, so that the heat conduction silica gel in the heat conduction layer 4 is in a molten state, and when the main wire core 5 extrudes the heat conduction layer 4, the heat conduction silica gel in the heat conduction layer 4 can be extruded to two sides;

s3, after the two ends of the heat conduction layer 4 are sealed, the main wire core 5 is wrapped by the heat conduction layer 4, and the two ends of the heat conduction layer 4 are bonded by the sealing adhesive layer 10 during wrapping, so that wire core preparation is completed;

and S4, sequentially coating the inner protective layer 2 and the outer insulating layer 1 on the wire core to finish the preparation of the cable.

In the use process of the cable, the icing condition on the surface of the cable is detected by the infrared ray emitter 8 and the light ray receiver 9 on the segment ring 7, when the surface of the cable is condensed with a thick ice layer, the electric heating device 702 in the segment ring 7 works for a period of time, so that the protective adhesive layer 402 in the heat conduction layer 4 is heated, the heat is transferred through the protective adhesive layer 402, the plurality of heat storage particles 6 store heat, after the electric heating device 702 stops working, the heat storage particles 6 continuously heat up to melt the ice layer on the surface of the outer insulation layer 1 after being heated, in addition, because the heat conducting layer 4 surrounds the auxiliary cable 3 and the main wire core 5, the heat generated by the auxiliary cable 3 and the main wire core 5 during working can be transferred to the whole heat conducting layer 4, thereby make protection glue film 402 be heated in all sides to the heat accumulation granule 6 heat accumulation in protection glue film 402 reduces the heat loss of cable under cold circumstance.

This scheme can realize making the cable self-heating when the cable surface ice sheet condenses to melt cable surface ice sheet, and the heat that gives off in the cable operation process can be preserved, reduces calorific loss, makes the difficult thick ice sheet of gel in cable surface.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.