CN220709984U - High-temperature-resistant high-pressure-resistant crosslinked cable - Google Patents

Abstract

The application relates to a high-temperature-resistant high-pressure-resistant crosslinked cable, and relates to the technical field of cables. The heat dissipation hole has been seted up to the surface of wearing layer, the internal surface on wearing layer is provided with the ripple layer from outside to interior, the fin, heat conduction layer and heat-resisting layer, the high temperature and high pressure resistant crosslinked cable that this application provided, the setting up of a plurality of louvres makes the inside heat that produces of cable all can in time give off outside air, the speed of giving off has been accelerated, the setting up of fin then reaches the purpose that further increases the heat dissipation ability, the heat conduction layer is derived the heat that the cable produced in the use as far as, avoid gathering in the inside, the heat-resisting layer then can make its physical state change along with the temperature change in certain temperature range, thereby adapt to the change of cable inside temperature, adaptability when having increased the use has reduced the later stage and has received the influence of expend with heat and contract with cold, prevent the cable because the too big fracture of difference in temperature, the electrical conductivity in the follow-up use has also been guaranteed, the security of use has been improved.

Description

High-temperature-resistant high-pressure-resistant crosslinked cable

Technical Field

The application relates to the technical field of cables, in particular to a high-temperature-resistant high-pressure-resistant crosslinked cable.

Background

With the rapid development of the power industry, the demand for power cables, namely arteries and vessels for power transmission, is increasing, and among power cables in various insulation forms, crosslinked polyethylene insulated power cables are in a brand-new angle due to numerous advantages, and because high-voltage cables usually adopt a compressed structure, the current-carrying capacity is limited, and water tree phenomena are easy to occur in some wet areas.

In the related art, in order to solve the above problems, some improvements are made on the high-voltage cable, for example, a water-blocking tape layer, a shielding layer, an insulating layer, an anti-corrosion layer, a non-metal sheath layer or a graphite coating layer are arranged on the outer side of the conductor, so that the cable has high power transmission capability and good water-blocking waterproof tree performance and flame retardant performance; however, although the cable with the structural design has good waterproof performance, the cable is poor in heat resistance and high temperature resistance, so that the cable is easy to be in a high-temperature environment for a long time, the conductive performance of the cable is affected, and even the cable is cracked to generate the risk of cable short circuit when serious, so that the potential safety hazard is large.

Disclosure of Invention

The embodiment of the application provides a high-temperature-resistant high-pressure-resistant crosslinked cable, which aims to solve the problems that the heat resistance of the high-pressure crosslinked cable in the related art is poor, the conductivity of the cable is affected, and even the cable is short-circuited.

The application provides a high temperature resistant high pressure crosslinked cable, it includes:

the outer surface of the wear-resistant layer is provided with a heat dissipation hole, and the inner surface of the wear-resistant layer is fixedly connected with a corrugated layer;

the heat conducting layer is fixedly arranged on the inner surface of the corrugated layer, and a plurality of radiating fins which are arranged at intervals are fixedly arranged between the heat conducting layer and the corrugated layer;

the heat-resistant layer is fixedly arranged on the inner surface of the heat conduction layer, and the inner surface of the heat-resistant layer is fixedly connected with a glass fiber layer.

In some embodiments, the corrugated layer comprises a plurality of corrugated sections, and the plurality of corrugated sections are arranged at intervals along the length direction of the corrugated layer and are connected in sequence.

In some embodiments, the inner surface of the glass fiber layer is fixedly connected with a first reinforcing rib and a second reinforcing rib;

the first reinforcing ribs and the second reinforcing ribs are vertically fixed, the first reinforcing ribs are longitudinally arranged along the length direction of the glass fiber layer, and the second reinforcing ribs are transversely arranged along the circumferential direction of the glass fiber layer; or,

the first reinforcing ribs and the second reinforcing ribs are vertically fixed, and the first reinforcing ribs and the second reinforcing ribs are obliquely arranged relative to the central axis of the glass fiber layer.

In some embodiments, the inner surface of the first reinforcing rib is fixedly connected with a corrosion-resistant layer;

the inner surface of the corrosion-resistant layer is fixedly connected with a spiral reinforcing rib.

In some embodiments, an antistatic layer is fixedly connected to the inner surface of the spiral reinforcing rib;

the inner surface of the antistatic layer is fixedly connected with an insulating rubber layer.

In some embodiments, the inner surface of the insulating rubber layer is fixedly connected with a buffer layer;

buffer grooves are formed in the outer surface and the inner surface of the buffer layer.

In some embodiments, the inner surface of the buffer layer is fixedly connected with an inner sheath;

the inner surface of the inner sheath is fixedly connected with a plurality of support plates.

In some embodiments, a sleeve is fixedly connected to one end of the support plate away from the inner sheath;

and the inner part of the sleeve is fixedly connected with a battery cell.

In some embodiments, a filler paste is filled between the inner sheath, the support plate and the sleeve.

In some embodiments, the thermally conductive layer is a thermally conductive silicone grease material; and/or the number of the groups of groups,

the heat-resistant layer is made of hot melt adhesive material.

The beneficial effects that technical scheme that this application provided brought include:

the embodiment of the application provides a high temperature resistant high pressure crosslinked cable, because the louvre has been seted up to the surface of wearing layer, and the internal surface on wearing layer is from outer to interior fixedly connected with ripple layer in proper order, the fin, heat conduction layer and heat-resisting layer, consequently, the setting of a plurality of louvres makes the inside heat that produces of cable all can in time give off outside air in, the speed of giving off has been accelerated, the setting of fin then reaches the purpose that further increases the heat-sinking capability, the heat conduction layer is with the heat that the cable produced in the use is derived as far as, avoid gathering in inside, the heat-resisting layer then can make its physical state change along with the temperature change in a certain temperature range, thereby adapt to the change of cable inside temperature, adaptability when using has been increased, the influence of thermal expansion has been reduced later stage receive thermal contraction, prevent the cable because the too big fracture of difference in temperature, the conductive property in the follow-up use has also been guaranteed, the security of using has been improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a wear-resistant layer of a high-temperature and high-pressure resistant crosslinked cable according to an embodiment of the present application;

fig. 2 is a schematic front sectional plan view structure of a high temperature and high pressure resistant crosslinked cable provided in an embodiment of the present application;

fig. 3 is a schematic left-hand cross-sectional structural view of a high-temperature and high-pressure resistant crosslinked cable according to an embodiment of the present application;

fig. 4 is an exploded schematic view of a high-temperature and high-pressure resistant crosslinked cable according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of the inside of the abrasion-resistant layer of the high-temperature and high-pressure resistant crosslinked cable provided in the embodiment of the application.

In the figure: the heat-resistant and heat-resistant composite material comprises the following components of a 1-abrasion-resistant layer, a 2-heat-radiating hole, a 3-corrugated layer, a 4-heat-radiating fin, a 5-heat-conducting layer, a 6-heat-resistant layer, a 7-glass fiber layer, 8-first reinforcing ribs, 9-second reinforcing ribs, a 10-corrosion-resistant layer, 11-spiral reinforcing ribs, a 12-antistatic layer, a 13-insulating rubber layer, a 14-buffer layer, a 15-buffer groove, a 16-inner sheath, a 17-supporting plate, a 18-sleeve, a 19-electric core and 20-filling paste.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

The embodiment of the application provides a high-temperature-resistant and high-pressure-resistant crosslinked cable, which can solve the problems that the heat resistance of the high-pressure crosslinked cable in the related art is poor, the conductivity of the cable is affected, and even the cable is short-circuited.

Referring to fig. 1, 3 and 5, the high-temperature and high-pressure resistant crosslinked cable comprises a wear-resistant layer 1, a heat-conducting layer 5 and a heat-resistant layer 6, wherein the outer surface of the wear-resistant layer 1 is provided with heat dissipation holes 2, and the heat generated in the cable can be timely dissipated into the outside air due to the arrangement of the plurality of heat dissipation holes 2, so that the dissipation speed is increased; the inner surface of the wear-resistant layer 1 is fixedly connected with the corrugated layer 3, the heat conducting layer 5 is fixedly arranged on the inner surface of the corrugated layer 3, and the heat conducting layer 5 guides out the heat generated by the cable in the use process as far as possible so as to avoid accumulation in the interior; a plurality of radiating fins 4 which are arranged at intervals are fixedly arranged between the heat conduction layer 5 and the corrugated layer 3, are closely distributed and keep a certain gap so as to ensure the radiating effect, and the purpose of further increasing the radiating capacity is achieved by arranging the radiating fins 4; the heat-resistant layer 6 is fixedly arranged on the inner surface of the heat-conducting layer 5, the glass fiber layer 7 is fixedly connected to the inner surface of the heat-resistant layer 6, and the physical state of the heat-resistant layer 6 can be changed along with the change of temperature within a certain temperature range, so that the heat-resistant layer is suitable for the change of the internal temperature of the cable, the adaptability in use is improved, the influence of thermal expansion and cold contraction in the later period is reduced, and the cable is prevented from being cracked due to overlarge temperature difference. The heat dissipation holes 2 are formed in the outer surface of the wear-resistant layer 1, and the corrugated layer 3, the heat dissipation fins 4, the heat conduction layer 5 and the heat-resistant layer 6 are sequentially and fixedly connected to the inner surface of the wear-resistant layer 1 from outside to inside, so that the cable can adapt to a high-temperature environment, short circuits are avoided after the temperature difference is overlarge and breakage, the electric conductivity in the subsequent use process is also ensured, and the use safety is improved.

Further, as shown in fig. 3, the corrugated layer 3 includes a plurality of corrugated sections, and the plurality of corrugated sections are disposed at intervals along the length direction of the corrugated layer 3 and are sequentially connected. Specifically, because the cable needs to have certain tensile property, and can bear the pulling of certain external force in the use, in order to prevent the problem that the ripple layer 3 is overlarge in local stress when being subjected to external force, the multistage ripple section of the ripple layer 3 is arranged in a segmented mode, and the toughness and the fatigue resistance of the cable can be effectively improved.

Further, the inner surface of the glass fiber layer 7 is fixedly connected with a first reinforcing rib 8 and a second reinforcing rib 9, wherein the first reinforcing rib 8 and the second reinforcing rib 9 can be vertically fixed, the first reinforcing rib 8 is longitudinally arranged along the length direction of the glass fiber layer 7, and the second reinforcing rib 9 is transversely arranged along the circumferential direction of the glass fiber layer 7; alternatively, the first reinforcing rib 8 and the second reinforcing rib 9 may be vertically fixed, and the first reinforcing rib 8 and the second reinforcing rib 9 are inclined with respect to the central axis of the glass fiber layer 7. Specifically, through the setting of first strengthening rib 8 and second strengthening rib 9, and mutually perpendicular is fixed between first strengthening rib 8 and the second strengthening rib 9, can guarantee the structural strength of cable, the fastness of reinforcing connection, except foretell structural style, can also adopt non-perpendicular fixed's cross connection between first strengthening rib 8 and the second strengthening rib 9.

Further, referring to fig. 2 and 4, the inner surface of the first reinforcing rib 8 is fixedly connected with a corrosion-resistant layer 10, and the inner surface of the corrosion-resistant layer 10 is fixedly connected with a spiral reinforcing rib 11. Specifically, when in actual use, through the setting of corrosion-resistant layer 10 and spiral strengthening rib 11, corrosion-resistant layer 10 can effectively avoid the cable to use for a long time and appear the inside rotten phenomenon, and corrosion resistance obtains strengthening, and a plurality of spiral strengthening ribs 11 are closely fixed at the surface on antistatic backing 12 each other, can increase the bearing capacity of cable, play the effect of buffering dispersion pressure, avoid hard extrusion.

Further, referring to fig. 2 and 4, the inner surface of the spiral reinforcing rib 11 is fixedly connected with an antistatic layer 12, and the inner surface of the antistatic layer 12 is fixedly connected with an insulating rubber layer 13. Specifically, when in actual use, through the setting of antistatic layer 12 and insulating rubber layer 13, antistatic layer 12 can effectually prevent outside static to produce the influence to electric core 19, guarantees the transmission performance of cable, and insulating rubber layer 13 realizes completely isolated electric core 19, avoids the electric shock to cause the incident when using, improves the security of using.

Further, referring to fig. 2 to 4, the inner surface of the insulating rubber layer 13 is fixedly connected with a buffer layer 14, and buffer grooves 15 are formed on the outer surface and the inner surface of the buffer layer 14. Specifically, when in actual use, through the setting of buffer layer 14, a plurality of buffer grooves 15 have all been seted up to the surface and the internal surface of buffer layer 14, can play the effect of buffering, have improved the compressive resistance of whole cable.

Further, referring to fig. 2 and 4, an inner sheath 16 is fixedly connected to an inner surface of the buffer layer 14, and a plurality of support plates 17 are fixedly connected to an inner surface of the inner sheath 16. Specifically, in actual use, the inner sheath 16 is generally made of an elastic rubber material, and the inner sheath 16 is arranged to facilitate bending of the cable, increase flexibility, support the sleeve 18 by the support plate 17, and strengthen stability of the internal structure.

Further, referring to fig. 2-4, a sleeve 18 is fixedly connected to an end of the support plate 17 away from the inner sheath 16, and a battery cell 19 is fixedly connected to the interior of the sleeve 18. Specifically, during actual use, through the setting of sleeve 18, electric core 19 is fixed in the inside of sleeve 18, plays buffering protection's effect, and a plurality of sleeves 18 can avoid electric core 19 to contact each other, prevent to produce the winding, strengthen the protectiveness to electric core 19.

Further, referring to fig. 2 and 4, the filling paste 20 is filled between the inner sheath 16, the supporting plate 17 and the sleeve 18, and by setting the filling paste 20, the filling paste 20 is filled in the cavity enclosed by the inner sheath 16, the supporting plate 17 and the sleeve 18, so that the invasion of water can be prevented, the sealing performance of the cable is improved, and the service life is prolonged.

Specifically, this cable passes through the setting of first strengthening rib 8, second strengthening rib 9, spiral strengthening rib 11, sleeve 18 and filling paste 20, first strengthening rib 8 and second strengthening rib 9 mutually perpendicular are fixed, can guarantee the structural strength of cable, the fastness of reinforcing connection, a plurality of spiral strengthening ribs 11 are adjacent each other, can increase the bearing capacity of cable, play the effect of buffering dispersion pressure, avoid hard extrusion, electric core 19 is fixed in the inside of sleeve 18, a plurality of sleeves 18 can avoid electric core 19 to contact each other, prevent to produce the winding, filling paste 20 fills in the cavity of inside inner sheath 16, in order to prevent the invasion of moisture, the sealing performance of cable has been increased, life obtains promoting.

Further, the heat conducting layer 5 is made of heat conducting silicone grease material; and/or the heat resistant layer 6 is a hot melt adhesive material. Specifically, the heat conduction layer 5 is made of heat conduction silicone grease material, and is made of organic silicone as main raw material, and material with excellent heat resistance and heat conduction property is added, so that the heat generated in the use process of the cable is led out, and the service life is prolonged; the heat-resistant layer 6 is made of a hot melt adhesive material, and the physical state of the heat-resistant layer is changed along with the change of temperature within a certain temperature range, so that the heat-resistant layer is suitable for the change of the temperature inside the cable, the adaptability in use is improved, the influence of thermal expansion and cold contraction in the later period is reduced, the practicability is improved, and the glass fiber layer 7 is used for further protecting the inside of the cable, so that the cable has the characteristics of high heat resistance and good corrosion resistance, and has higher extensibility.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A high temperature and high pressure resistant crosslinked cable, comprising:

the wear-resistant coating (1), the outer surface of the wear-resistant coating (1) is provided with a heat dissipation hole (2), and the inner surface of the wear-resistant coating (1) is fixedly connected with a corrugated layer (3);

the heat conducting layer (5), the heat conducting layer (5) is fixedly arranged on the inner surface of the corrugated layer (3), and a plurality of radiating fins (4) which are arranged at intervals are fixedly arranged between the heat conducting layer (5) and the corrugated layer (3);

the heat-resistant layer (6), heat-resistant layer (6) is fixed to be located the internal surface of heat conduction layer (5), the internal surface fixedly connected with glass fiber layer (7) of heat-resistant layer (6).

2. A high temperature and high pressure resistant crosslinked cable according to claim 1 wherein:

the corrugated layer (3) comprises a plurality of sections of corrugated sections, and the sections of corrugated sections are arranged at intervals along the length direction of the corrugated layer (3) and are connected in sequence.

3. A high temperature and high pressure resistant crosslinked cable according to claim 1 wherein:

the inner surface of the glass fiber layer (7) is fixedly connected with a first reinforcing rib (8) and a second reinforcing rib (9);

the first reinforcing ribs (8) and the second reinforcing ribs (9) are vertically fixed, the first reinforcing ribs (8) are longitudinally arranged along the length direction of the glass fiber layer (7), and the second reinforcing ribs (9) are transversely arranged along the circumferential direction of the glass fiber layer (7); or,

the first reinforcing ribs (8) and the second reinforcing ribs (9) are vertically fixed, and the first reinforcing ribs (8) and the second reinforcing ribs (9) are obliquely arranged relative to the central axis of the glass fiber layer (7).

4. A high temperature and high pressure resistant crosslinked cable according to claim 3, wherein:

the inner surface of the first reinforcing rib (8) is fixedly connected with a corrosion-resistant layer (10);

the inner surface of the corrosion-resistant layer (10) is fixedly connected with a spiral reinforcing rib (11).

5. A high temperature and high pressure resistant crosslinked cable according to claim 4 wherein:

the inner surface of the spiral reinforcing rib (11) is fixedly connected with an antistatic layer (12);

the inner surface of the antistatic layer (12) is fixedly connected with an insulating rubber layer (13).

6. A high temperature and high pressure resistant crosslinked cable according to claim 5 wherein:

the inner surface of the insulating rubber layer (13) is fixedly connected with a buffer layer (14);

buffer grooves (15) are formed in the outer surface and the inner surface of the buffer layer (14).

7. A high temperature and high pressure resistant crosslinked cable according to claim 6 wherein:

the inner surface of the buffer layer (14) is fixedly connected with an inner sheath (16);

the inner surface of the inner sheath (16) is fixedly connected with a plurality of support plates (17).

8. A high temperature and high pressure resistant crosslinked cable according to claim 7 wherein:

one end of the supporting plate (17) far away from the inner sheath (16) is fixedly connected with a sleeve (18);

an electric core (19) is fixedly connected inside the sleeve (18).

9. A high temperature and high pressure resistant crosslinked cable according to claim 8 wherein:

and filling paste (20) is filled among the inner sheath (16), the supporting plate (17) and the sleeve (18).

10. A high temperature and high pressure resistant crosslinked cable according to claim 1 wherein:

the heat conduction layer (5) is made of heat conduction silicone grease material; and/or the number of the groups of groups,

the heat-resistant layer (6) is made of hot melt adhesive material.