A special salt spray resistant power cable for system interconnection

Abstract

The present invention discloses a salt-fog resistant special power cable for system interconnection, which relates to the field of cable technology, and comprises a cable inner core and a cable outer core, wherein the cable outer core wraps the cable inner core, and further comprises a plurality of anti-salt-fog mechanisms for preventing salt particles from accumulating on the cable surface, wherein the anti-salt-fog mechanisms are arranged on the cable outer core. The cable firstly adds a layer of anti-salt-fog mechanism to the cable outer core, and the circulation of wind causes the agitation section to agitate, thereby reducing the situation where salt particles adhere to the surface. When salt particles still inevitably adhere in windless weather, the corrosion position can be filled under the action of the hot-melt section at this time, thereby avoiding subsequent continuous corrosion.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to a salt-fog resistant special power cable for system interconnection. Background Art

[0002] Power cables are used to transmit and distribute electric energy. They are often used in urban underground power grids, power station lead-out lines, internal power supply for industrial and mining enterprises, and underwater transmission lines across rivers and seas. Salt spray refers to Na20 particles suspended in the atmosphere in the form of gaseous solution. It is mainly formed because the wind causes disturbances on the sea surface and the impact of seawater and waves hitting the coast during high and low tides, causing many wave particles to be dragged into the air. After the water evaporates, some very small salt particles are left. Under the exchange of large groups of advection and element flow, these salt particles are scattered in the air and flow with the wind to form salt spray in coastal areas.

[0003] However, during the use of existing power cables, since they cannot handle salt spray by themselves, if they are in salt spray for a long time, sea salt particles will adhere to the surface of the cable, which will corrode the cable. The corroded cable core is directly exposed to the air. At this time, the cable core is in contact with the outside world for a longer time, which leads to an increase in its heat generation. In addition, the sea salt particles will directly corrode the cable core, resulting in broken strands and wire breaks. Summary of the invention

[0004] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. An embodiment of the present invention provides a salt spray resistant special power cable for system interconnection to solve the technical problem that the existing power cables cannot self-process the attached sea salt particles, thereby causing cable corrosion.

[0005] The embodiment of the present invention adopts the following technical solution: a salt-fog resistant special power cable for system interconnection, comprising a cable inner core and a cable outer core, wherein the cable outer core wraps the cable inner core, and also comprises a plurality of salt-fog protection mechanisms for preventing salt particles from accumulating on the cable surface, wherein the salt-fog protection mechanisms are arranged on the cable outer core.

[0006] Furthermore, the anti-salt spray mechanism includes a connecting block, which is arranged on the outer core of the cable, a connecting cover is arranged on the outer side of the connecting block, the connecting cover is cooperatively connected to the connecting block, a connecting section is arranged on the side of the connecting cover, a hot melt section is arranged at the end of the connecting section, an agitation section is arranged at the end of the hot melt section, the end of the agitation section is connected to another group of hot melt sections, and a plurality of mating protrusions are arranged on the inner side of the fixed section, and the mating protrusions are connected to the outer core of the cable.

[0007] Furthermore, the hot melt section is made of hot melt material.

[0008] Furthermore, the agitating section is arc-shaped and is made of soft material.

[0009] Furthermore, the heights of the plurality of matching protrusions gradually increase, and the peaks of the matching protrusions are located at the tangent of the agitation section.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] Firstly, by additionally providing an anti-salt spray mechanism for the outer core of the cable, when the salt spray floating in the air moves to the cable surface under the action of wind during the use of the cable, the connection section is at a better height than the agitation section, and the connection section, the hot melt section and the agitation section form an arc surface, and the arc surface of the agitation section is the lowest point. At this time, more salt particles in the salt spray will accumulate in the arc surface of the agitation section, but because there is wind at this time, the hot melt section and the agitation section will be blown and pressed under the action of wind (that is, the hot melt section is blown to compress the space between two adjacent connection blocks. Since the size of the space will not change, when the hot melt section is deformed, the agitation section will also deform in the opposite direction. ), so that the hot melt section and the agitation section are constantly deformed (bulged and sunken) under the action of the wind. At the same time, under the action of the matching convex points, the strength of the bulging and sunken can be strengthened, making it difficult for salt particles in the wind to adhere to the surface of the anti-salt spray mechanism. When the salt particles cannot adhere, the corrosion of the cable by the salt particles can naturally be reduced. At the same time, the setting of the connecting section can be done by modifying the cable extrusion port during the extrusion process, which can be synchronously extruded with the cable outer core without improving the existing cable production technology. The connecting section, hot melt section and agitation section can be inserted into the connecting block through the connecting cover during the production process. This connection method is also relatively simple and has little change to the original production process.

[0012] Secondly, since the hot melt section is made of hot melt resin material, when the area is affected by salt particles and rots, the internal cable will come into contact with the air, generating a large amount of heat, causing the hot melt resin to melt. At the same time, affected by the angle, it will flow and move to the corroded area to fill the corroded area, thereby avoiding subsequent continuous corrosion.

[0013] To sum up, firstly, a layer of anti-salt spray mechanism is added to the outer core of the cable, and the circulation of wind causes the agitation section to agitate, thereby reducing the adhesion of salt particles on the surface. When salt particles are inevitably attached in windless weather, the corrosion position can be filled under the action of the hot melt section to avoid subsequent continuous corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the first viewing angle mechanism of the present invention;

[0016] Figure 2 It is a schematic diagram of the second viewing angle mechanism of the present invention.

[0017] Reference numerals:

[0018] 1. Cable inner core; 2. Cable outer core; 3. Salt spray protection mechanism; 31. Connecting block; 32. Connecting cover; 33. Connecting section; 34. Hot-melt section; 35. Agitating section; 36. Matching convex point. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0021] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Combine the following Figure 1 to Figure 2 As shown, an embodiment of the present invention provides a salt-fog resistant special power cable for system interconnection, including a cable inner core 1 and a cable outer core 2, wherein the cable outer core 2 wraps the cable inner core 1, and also includes a plurality of salt-fog protection mechanisms 3 for preventing salt particles from accumulating on the cable surface, and the salt-fog protection mechanisms 3 are arranged on the cable outer core 2.

[0025] During operation, firstly, a layer of anti-salt spray mechanism 3 is added to the cable outer core 2, and the circulation of wind causes the agitation section 35 to agitate, thereby reducing the adhesion of salt particles on the surface. When salt particles are inevitably attached in windless weather, the corrosion position can be filled under the action of the hot melt section 34 to avoid subsequent continuous corrosion.

[0026] Specifically, the anti-salt spray mechanism 3 includes a connecting block 31, which is arranged on the cable outer core 2, and a connecting cover 32 is arranged on the outer side of the connecting block 31, and the connecting cover 32 is connected to the connecting block 31 in a cooperative manner, and a connecting section 33 is arranged on the side of the connecting cover 32, and a hot melt section 34 is arranged at the end of the connecting section 33, and an agitation section 35 is arranged at the end of the hot melt section 34, and the end of the agitation section 35 is connected to another group of hot melt sections 34, and a plurality of mating protrusions 36 are arranged on the inner side of the fixed section, and the mating protrusions 36 are connected to the cable outer core 2.

[0027] Specifically, the hot melt section 34 is made of hot melt material, and flow channels are provided in the hot melt section 34 and the agitation section 35 .

[0028] During operation, when the cable body is corroded and generates heat, the hot melt section 34 will melt and flow to the agitating section 35 through the flow channel, thereby supplementing the corroded position of the agitating section 35.

[0029] Specifically, the agitation section 35 is arc-shaped and is made of soft material.

[0030] During operation, the agitation section 35 is made of a soft material with a certain hardness, so that it can maintain its shape and also have a certain softness to ensure that it can agitate.

[0031] Specifically, the heights of the plurality of matching protrusions 36 gradually increase, and the peaks of the matching protrusions 36 are located at the tangent of the agitation section 35 .

[0032] Working principle: When the cable is in use, when the salt mist floating in the air moves to the surface of the cable under the action of wind, the connecting section 33 is at a better height than the agitating section 35, and the connecting section 33, the hot melt section 34 and the agitating section 35 form an arc surface, and the arc surface of the agitating section 35 is the lowest point. At this time, more salt particles in the salt mist will accumulate in the arc surface of the agitating section 35, but because there is wind at this time, the hot melt section 34 and the agitating section 35 will be blown under the action of wind (that is, the hot melt section 34 is blown to compress the space between two adjacent connecting blocks 31. Since the size of the space will not change, when the hot melt section 34 is deformed, the agitating section 35 will also deform in the opposite direction), so that the hot melt section 34 and the agitating section 35 will continue to deform (bulge and sag) under the action of the wind. At the same time, under the action of the matching convex point 36, the strength of the bulge and sag can be strengthened, making it difficult for salt particles in the wind to By attaching to the surface of the anti-salt spray mechanism 3, when the salt particles cannot attach, the corrosion of the salt particles to the cable can naturally be reduced. At the same time, the setting of the connecting section 33 only requires modification of the cable extrusion port during the extrusion process, and can be extruded synchronously with the cable outer core 2, without the need to improve the existing cable production technology. The connecting section 33, the hot melt section 34 and the agitation section 35 can be inserted into the connecting block 31 through the connecting cover 32 during the production process. This connection method is also relatively simple and has little effect on the original production process. When the agitation section 35 is inevitably corroded due to being in a windless state for a long time, when the place is affected by salt particles and rots, the internal cable is in contact with the air at this time, a large amount of heat will be generated, thereby causing the hot-melt resin to melt, and at the same time, it will flow due to the influence of its angle, so as to move to the corrosion site to fill the corrosion site, thereby avoiding subsequent continuous corrosion.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A salt-fog resistant special power cable for system interconnection, comprising a cable inner core (1) and a cable outer core (2), wherein the cable outer core (2) wraps the cable inner core (1), characterized in that; The invention also comprises a plurality of anti-salt spray mechanisms (3) for preventing salt particles from accumulating on the surface of the cable. The anti-salt spray mechanisms (3) are arranged on the outer core (2) of the cable. The anti-salt spray mechanisms (3) comprise a connecting block (31). The connecting block (31) is arranged on the outer core (2) of the cable. A connecting cover (32) is arranged on the outer side of the connecting block (31). The connecting cover (32) is connected to the connecting block (31) in a mating manner. A connecting section (33) is arranged on the side of the connecting cover (32). A hot melt section (34) is arranged at the end of the connecting section (33). An agitating section (35) is arranged at the end of the hot melt section (34). The end of the agitating section (35) is connected to another group of hot melt sections (34). A plurality of mating protrusions (36) are arranged on the inner side of the agitating section (35). The mating protrusions (36) are connected to the outer core (2) of the cable. The agitating section (35) is arc-shaped and made of soft material.

2. The salt spray resistant special power cable for system interconnection according to claim 1, characterized in that; The hot melt section (34) is made of hot melt material.

3. The salt spray resistant special power cable for system interconnection according to claim 1, characterized in that: The heights of the plurality of matching protrusions (36) gradually increase, and the peaks of the matching protrusions (36) are located at the tangent of the agitation section (35).

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