CN212809811U

CN212809811U - High-temperature-resistant double-layer insulation flexible cable with mesh-shaped woven protective layer for high-voltage frequency converter

Info

Publication number: CN212809811U
Application number: CN202022203230.1U
Authority: CN
Inventors: 闵海华
Original assignee: Wuxi Huacheng Cable Co ltd
Current assignee: Wuxi Huacheng Cable Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-03-26
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a take netted flexible cable for high temperature resistant double-deck insulating high voltage inverter who weaves sheath, its technical scheme is: protective layer is woven including cable body, conductor and netted, fixed mounting conductor in the middle of the cable body, conductor outer wall winding median, the resistant high temperature layer of median outer wall fixed mounting, the crowded package inner insulating layer of high temperature resistant layer outer wall, inner insulating layer outer wall fixed mounting filling layer, the crowded package outer insulating layer of filling layer outer wall, outer insulating layer outer wall fixed mounting shielding layer, the netted protective layer of weaving of shielding layer outer wall fixed mounting, the netted protective layer of weaving comprises special fibre and resin, the utility model discloses beneficial effect is: the inner insulating layer and the outer insulating layer adopt an extrusion process twice, so that the vulcanization degree of the inner insulating layer and the outer insulating layer is improved, the electrical property of the insulation is improved, the tear resistance of the outer insulation is improved by the net-shaped woven protective layer, and the service life of the cable is prolonged.

Description

High-temperature-resistant double-layer insulation flexible cable with mesh-shaped woven protective layer for high-voltage frequency converter

Technical Field

The utility model relates to a cable field, concretely relates to flexible cable for high temperature resistant double-deck insulating high voltage inverter of sheath is woven to area netlike.

Background

The cable is generally formed by twisting several or several groups of wires, each group of at least two wires is twisted into a rope-like shape, each group of wires is mutually insulated and is usually twisted around a center, a highly insulated covering layer is wrapped outside the whole cable for electric energy transmission and provides a power transmission path for various devices, the power cable is a cable for transmitting and distributing electric energy, the power cable is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater, the proportion of the cable in the power line is gradually increased, the power cable is a cable product for transmitting and distributing high-power electric energy in a main line of a power system, and various voltage grades and various insulated power cables.

The prior art has the following defects: the existing cable for the high-voltage frequency converter has an insulation function under the high-temperature condition, but is easily influenced by the environment, and has the advantages of low corrosion resistance, poor high-temperature resistance effect, low vulcanization degree, low insulation electrical property, easy tearing of the outer insulation and influence on the service life of the cable.

Therefore, the flexible cable for the high-temperature-resistant double-layer insulation high-voltage frequency converter with the mesh-shaped braided sheath is needed to be invented.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a take netted flexible cable for high temperature resistant double-deck insulating high voltage inverter who weaves the sheath, weave protective layer, inner insulating layer and outer insulating layer through setting up netted and adopt to divide twice extrusion process to solve corrosion resistance low, high temperature resistance effect is relatively poor, and the vulcanization degree is lower, and insulating electrical property is lower, and outer insulation tears easily, influences the life's of cable problem.

In order to achieve the above object, the present invention provides the following technical solutions: take netted double-deck insulating high-voltage inverter of high temperature resistant who weaves sheath to use flexible cable, weave the protective layer including cable body, conductor and netted, fixed mounting conductor in the middle of the cable body, conductor outer wall winding median, the resistant high temperature layer of median outer wall fixed mounting, the crowded package inner insulating layer of high temperature resistant layer outer wall, inner insulating layer outer wall fixed mounting filling layer, the crowded package outer insulating layer of filling layer outer wall, outer insulating layer outer wall fixed mounting shielding layer, the netted protective layer of weaving of shielding layer outer wall fixed mounting, the netted protective layer of weaving comprises special type fibre and resin.

Preferably, the conductor is made of copper materials, and the cross section of the conductor is circular honeycomb.

Preferably, the high temperature resistant layer is wound on the outer wall of the isolation strip, and the isolation strip is wound on the outer wall of the conductor.

Preferably, the inner insulating layer is made of rubber, and the thickness of the inner insulating layer is set to be 0.2mm-0.7 mm.

Preferably, the outer insulating layer is made of fibers, and the thickness of the outer insulating layer is set to be 0.2mm-0.7 mm.

Preferably, the high temperature resistant layer is provided with high temperature resistant fluoroplastic, the inner wall of the shielding layer is fixedly provided with grains, and the isolation belt is made of a polyester film material.

The utility model has the advantages that: weave the conductor and be circular honeycomb, it is fixed to weave good conductor, wrap up the median, wrap up high temperature resistant layer at the median outer wall, the inner insulating layer adopts extrusion process, the laminating is at high temperature resistant outer wall, the filling layer is filled at the inner insulating layer outer wall, the outer insulating layer adopts extrusion process equally, the laminating is at the filling layer outer wall, with the shielding layer at the outer insulating layer outer wall around 1.1 circle, carry out netted weaving 75% with special fiber and cover at the shielding layer outer wall, coat resin on special fiber, be favorable to improving insulating vulcanization degree, the insulating electrical property has been increased, be favorable to increasing outer insulating layer's tear resistance, increase the life of cable.

Drawings

FIG. 1 is a cross-sectional view provided by the present invention;

fig. 2 is an expanded view of the shielding layer provided by the present invention;

fig. 3 is a cross-sectional view of a conductor provided by the present invention;

fig. 4 is a cross-sectional view of the mesh-shaped woven protective layer provided by the present invention.

In the figure: the cable comprises a cable body 1, a conductor 2, an isolation belt 3, a high-temperature-resistant layer 4, an inner insulating layer 5, a filling layer 6, an outer insulating layer 7, a shielding layer 8, special fibers 9, a silicone resin 10, a net-shaped woven protective layer 11 and grains 12.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to the attached drawings 1-4, the utility model provides a high temperature resistant double-layer insulation high-voltage converter flexible cable with a net-shaped woven protective layer, which comprises a cable body 1, a conductor 2 and a net-shaped woven protective layer 11, wherein the conductor 2 is fixedly installed in the middle of the cable body 1, the outer wall of the conductor 2 is wound with an isolation belt 3, the outer wall of the isolation belt 3 is fixedly installed with the high temperature resistant layer 4, the outer wall of the high temperature resistant layer 4 is extruded with an inner insulation layer 5, the outer wall of the inner insulation layer 5 is fixedly installed with a filling layer 6, the outer wall of the filling layer 6 is extruded with an outer insulation layer 7, the outer wall of the outer insulation layer 7 is fixedly installed with a shielding layer 8, the outer wall of the shielding layer 8 is fixedly installed with the net-shaped woven protective layer 11, the net-shaped woven protective layer 11 consists of special fiber 9 and resin 10, the special fiber 9 is meshed and woven by 75% to cover the outer wall of the shielding layer 8, the cable body 1 has a guiding effect on electricity, the conductor 2 has the effects of conducting electricity and connecting a circuit, the isolation belt 3 has an isolation effect on the conductor 2, the high-temperature-resistant layer 4 prevents the conductor 2 from being damaged by high temperature and has a certain protection effect on the conductor 2, the inner insulating layer 5 adopts an extrusion process, the insulating vulcanization degree is improved, the insulating electrical property is increased, the filling layer 6 plays a certain protection effect on the inner insulating layer 5, the outer insulating layer 7 adopts an extrusion process, the insulating vulcanization degree is improved, the insulating electrical property is increased, the shielding layer 8 is favorable for preventing surrounding workers and public from being harmed by radioactive radiation, and adjacent structural materials are prevented from being damaged by the radioactive radiation, a certain protection effect is achieved, and the meshed and woven protective layer 11 mainly plays a role in protecting the inner insulating layer 5 and the outer insulating layer 7 of the cable from radiation and running In the process, the cable is prevented from being damaged by mechanical damage and various environmental factors, so that the long-term stable electrical performance of the cable body 1 is kept, 75% of special fibers 9 are meshed and woven to cover the outer wall of the shielding layer 8, the tear resistance of the outer insulating layer 7 is improved, the outer insulating layer 7 has a good protection effect, and the silicone resin 10 is a thermosetting polysiloxane polymer with a highly-crosslinked structure, has the dual characteristics of organic resin and inorganic materials, has unique physical and chemical properties, and has good electrical insulation property, temperature resistance and waterproof effects;

furthermore, the conductor 2 is made of copper materials, the section of the conductor 2 is circular honeycomb-shaped, the conductor 2 is made of copper materials and has good insulating and high-temperature resistant effects, and the section of the conductor 2 is circular honeycomb-shaped, so that the insulating and high-temperature resistant performance of the conductor 2 is better, and the insulating electrical property is improved;

furthermore, the high-temperature-resistant layer 4 wraps the outer wall of the isolation belt 3, the isolation belt 3 wraps the outer wall of the conductor 2, the wrapping mode can be adopted to increase the attaching degree of the isolation belt 3, the high-temperature-resistant layer 4 and the isolation belt 3 and the conductor 2, the wiring mode is flexible, and the efficiency is improved;

furthermore, the inner insulating layer 5 is a rubber layer, the thickness of the inner insulating layer 5 is set to be 0.2mm-0.7mm, preferably 0.5mm, so that the improvement of the insulating vulcanization degree is facilitated, and the insulating electrical property is improved;

furthermore, the outer insulating layer 7 is a fiber layer, the thickness of the outer insulating layer 7 is set to be 0.2mm-0.7mm, preferably 0.5mm, and therefore the improvement of the insulating vulcanization degree is facilitated, and the insulating electrical property is improved;

further, high temperature resistant layer 4 sets up high temperature resistant fluoroplastics, shielding layer 8 inner wall fixed mounting line 12, median 3 adopts polyester film material to make, the plastics that contain the fluorine atom in the molecular structure are always called fluoroplastics, have good electric insulation performance, high heat resistance, wear resistance, good moisture resistance and low temperature resistance, line 12 is favorable to shielding layer 8 to the shielding effect of radiation better, prevent that staff and the public on every side from receiving the harm of these radiation, and prevent that adjacent structural material from receiving the radiation damage, polyester film material is with polyethylene terephthalate as raw materials, adopt the extrusion legal system to make the thick piece, the film material of making through biaxial tension has the effect that insulating properties is good.

The utility model discloses a use as follows: when the utility model is used, the conductor 2 is woven into a circular honeycomb shape, the woven conductor 2 is fixed and wraps the isolation belt 3, the outer wall of the isolation belt 3 is wrapped with the high temperature resistant layer 4, the inner insulating layer 5 adopts an extrusion process and is attached to the outer wall of the high temperature resistant layer 4, the filling layer 6 is filled on the outer wall of the inner insulating layer 5, the outer insulating layer 7 adopts an extrusion process and is attached to the outer wall of the filling layer 6, the shielding layer 8 is wound on the outer wall of the outer insulating layer 7 for 1.1 circle, the special fiber 9 is meshed and woven for 75 percent to cover on the outer wall of the shielding layer 8, and the resin 10 is coated on the special fiber 9, so that the novel high; the inner insulating layer 5 and the outer insulating layer 7 are arranged and the extrusion process is adopted twice, so that the vulcanization degree of the inner insulating layer 5 and the outer insulating layer 7 is improved, and the electrical property of the insulation is improved; through setting up netted protective layer 11 of weaving, increased outer insulation layer 7's tear resistance, prevent through setting up high temperature layer 4 that conductor 2 from receiving high temperature damage, have certain guard action to conductor 2.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.

Claims

1. The utility model provides a take netted flexible cable for double-deck insulating high voltage converter of high temperature resistant who weaves sheath, includes that cable body (1), conductor (2) and netted protection layer (11) of weaving, its characterized in that: fixed mounting conductor (2) in the middle of cable body (1), conductor (2) outer wall winding median (3), median (3) outer wall fixed mounting high temperature resistant layer (4), high temperature resistant layer (4) outer wall crowded package inner insulating layer (5), inner insulating layer (5) outer wall fixed mounting filling layer (6), filling layer (6) outer wall crowded package outer insulating layer (7), outer insulating layer (7) outer wall fixed mounting shielding layer (8), protective layer (11) is woven to shielding layer (8) outer wall fixed mounting meshwork, protective layer (11) is woven by meshwork comprises specialty fibre (9) and resin (10).

2. The flexible cable with the mesh-shaped braided sheath for the high-temperature-resistant double-layer insulation high-voltage frequency converter according to claim 1, is characterized in that: the conductor (2) is made of copper materials, and the section of the conductor (2) is circular and honeycomb-shaped.

3. The flexible cable with the mesh-shaped braided sheath for the high-temperature-resistant double-layer insulation high-voltage frequency converter according to claim 1, is characterized in that: the high-temperature-resistant layer (4) wraps the outer wall of the isolation strip (3), and the isolation strip (3) wraps the outer wall of the conductor (2).

4. The flexible cable with the mesh-shaped braided sheath for the high-temperature-resistant double-layer insulation high-voltage frequency converter according to claim 1, is characterized in that: the inner insulating layer (5) is a rubber layer, and the thickness of the inner insulating layer (5) is set to be 0.2mm-0.7 mm.

5. The flexible cable with the mesh-shaped braided sheath for the high-temperature-resistant double-layer insulation high-voltage frequency converter according to claim 1, is characterized in that: the outer insulating layer (7) is a fiber layer, and the thickness of the outer insulating layer (7) is set to be 0.2-0.7 mm.

6. The flexible cable with the mesh-shaped braided sheath for the high-temperature-resistant double-layer insulation high-voltage frequency converter according to claim 1, is characterized in that: high temperature resistant layer (4) set up high temperature resistant fluoroplastics, shielding layer (8) inner wall fixed mounting line (12), median (3) adopt the polyester film material to make.