CN2701033Y

CN2701033Y - Multiple insulation high temperature and high voltage electric cable

Info

Publication number: CN2701033Y
Application number: CN 200420045842
Authority: CN
Inventors: 李明斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-18
Filing date: 2004-05-18
Publication date: 2005-05-18
Anticipated expiration: 2014-05-18

Abstract

The utility model relates to a multiple insulation high temperature and high voltage electric cable, comprising a multiple insulation wire and a cable internal-external heat-proof insulation layer. The multiple insulation wire comprises a pure nickel conductor, as well as a lapping layer of PTFE film membrane paper, a braiding inner layer of fiber glass, a lapping layer of mica paper, and a braiding outer layer of fiber glass permeating silicone oils, which laps compactly the pure nickel conductor orderly from the inside to the outside. The cable internal heat-proof insulation layer is the lapping layer of mica paper and laps compactly the multiple insulation wire. The cable external heat-proof insulation layer is the same braiding layer of fiber glass permeating silicone oils and winds compactly the cable internal heat-proof insulation layer. After the control cable of the utility model is improved, the heat-proof property and the compression resistance of the cable are greatly enhanced, so the utility model can be used in the location that the environment temperature reaches 500 DEG C, and the normal operating alternating voltage reaches 600V.

Description

A kind of multiple insulation HTHP cable

Technical field:

The utility model relates to a kind of multiple insulation HTHP cable, especially as the production under the HTHP condition of work in the aviation, metallurgy, chemical industry, electromechanics, electronic applications or scientific research with power, the thermometric cable.

Background technology:

At present in aviation, metallurgy, chemical industry, electromechanics, electron production and related scientific research field; be used in high temperature below 500 ℃, exchange electric power or cable for measuring temperature under the following high-pressure work condition of 600V; all strong owing to operating ambient temperature height, operating voltage; and the restriction that is subjected to the dielectric voltage withstand structure and material of cable own; used cable life is short, needs frequent substitution, thereby the use cost height; and make the equipment downtime increased frequency, reduce production efficiency or delay time at stop.

Summary of the invention:

According to the problem of above-mentioned existence, the purpose of this utility model is to improve the insulation thermal level of above-mentioned cable under described high temperature, high-pressure work condition, prolongs the useful life of described cable.

For achieving the above object, the utility model provides a kind of multiple insulation HTHP cable of improvement, comprising: multiple insulated electric conductor, the inside and outside heat-resistant insulating layer of cable;

Described multiple insulated electric conductor conductor adopts the little high-quality conductor of thermal sensitivity, insulating barrier is taked the heat-resistant insulating layer of quadruple insulation layer structure, this quadruple insulation layer structure, pass through special process, rationally be distributed as: closely hold the PTFE film paper of described high-quality conductor, fiberglass braided, mica paper and fiberglass braided from the inside to surface successively, and organically combine, wherein the outermost layer insulating barrier is through the oil processing of infiltration high-temperature insulation; The interior heat-resistant insulating layer of described cable adopts the thermal endurance height, is applicable to the insulation paper-like materials of holding property processing technology, it closely holds many described multiple insulated electric conductors, the outer heat-resistant insulating layer of described cable adopts the high braided material of thermal endurance, it closely compiles heat-resistant insulating layer in described cable, and, just make the utility model equally through the oil processing of infiltration high-temperature insulation.

As a kind of improvement of the present utility model, be electric wire insulation layer that existing HTHP cable is comprised by double insulation system at the most, by special process, change quadruple temperature-resistant insulation layer version into; Strengthening the insulation thermal endurance of described cable insulation electric wire, and the outermost layer insulating barrier is permeated the high temperature insulation oil processing, can make that multiple insulated electric conductor insulation thermal endurance strengthens, compact conformation; Meanwhile, the outer heat-resistant insulating layer of described cable again through the oil processing of infiltration high-temperature insulation, can be made whole construction of cable compactness, the insulation thermal endurance further strengthens; Comprehensive said structure, material and particular procedure means can make described cable highly heat-resistant.

As another kind of improvement the of the present utility model, be that the conductor with multiple insulated electric conductor in the described cable changes the little high-quality conductor of thermal sensitivity into by normal conductor, so that the conductive characteristic of described cable does not take place significantly to degenerate with high temperature.

By above-mentioned improvement, be enough to make the utility model cable to adapt to the condition of work of the high heat of high temperature fully.

Description of drawings:

Fig. 1 is the structural diagrams of the utility model cable;

Fig. 2 is the structural diagrams of the multiple insulated electric conductor of the utility model cable;

The accompanying drawing sign:

Heat-resistant insulating layer 2 in the multiple insulated electric conductor 1, cable, the outer heat-resistant insulating layer 3 of cable; Pure nickel conductor 11, PTFE film paper hold layer 12, and fiberglass braided internal layer 13, mica paper hold layer 14, fiberglass braided outer 15 of infiltration silicone oil;

Embodiment:

In order to further specify above-mentioned purpose of the present utility model, structure and effect, embodiment of the present utility model is described below in conjunction with accompanying drawing:

Fig. 1 is the structural diagrams of the utility model cable, and Fig. 2 is the structural diagrams of the multiple insulated electric conductor of the utility model cable;

Described cable comprises: heat-resistant insulating layer 2 in the multiple insulated electric conductor 1, cable, the outer heat-resistant insulating layer 3 of cable;

Described multiple insulated electric conductor 1 comprises: pure nickel conductor 11, PTFE film paper hold layer 12, and fiberglass braided internal layer 13, mica paper hold layer 14, fiberglass braided outer 15 of infiltration silicone oil;

As shown in Figure 2, the described multiple insulated electric conductor 1 PTFE film paper that comprises pure nickel conductor 11 and closely hold described pure nickel conductor from the inside to surface successively holds layer 12, fiberglass braided internal layer 13, mica paper and holds fiberglass braided outer 15 of layer 14 and infiltration silicone oil; This quadruple insulation system distributes rationally, organically combines;

As shown in Figure 1, heat-resistant insulating layer 2 holds layer for mica paper in the described cable, it closely holds many described multiple insulated electric conductors 1, form described cable conductor part, the outer heat-resistant insulating layer 3 of described cable, be the fiberglass braided layer of same infiltration silicone oil, it closely twines heat-resistant insulating layer 2 in the described cable, just constitutes the utility model;

As an embodiment of the present utility model, its finished product electric wire withstand voltage test can be passed through: the test of the withstand voltage 2500V of normality (AC)/5min, operating temperature range :-60 ℃-+500 ℃;

The utility model cable, thermal endurance is extremely strong, and the resistance to pressure height is made power supply, thermometric cable but prolonged application reaches the various workplaces that 500 ℃, specified working volts alternating current reach 600V in ambient temperature.

Claims

1, a kind of multiple insulation HTHP cable, comprise: multiple insulated electric conductor, the inside and outside heat-resistant insulating layer of cable, it is characterized in that: for making described cable highly heat-resistant, described multiple insulated electric conductor conductor adopts the little high-quality conductor of thermal sensitivity, insulating barrier is for closely holding the quadruple Rational structure heat-resistant insulating layer of described high-quality conductor from the inside to surface successively, and the outermost layer of described quadruple heat-resistant insulating layer adopts the processing of infiltration high-temperature insulation oil; Heat-resistant insulating layer closely holds many described multiple insulated electric conductors in the described cable, and the outer heat-resistant insulating layer of described cable is closely compiled heat-resistant insulating layer in described cable, and same processing through infiltration high-temperature insulation oil.

2, according to claims 1 described a kind of multiple insulation HTHP cable, it is characterized in that, the quadruple Rational structure heat-resistant insulating layer of described multiple insulated electric conductor, the material that it adopted is respectively to skin by the nexine that holds described high-quality conductor: PTFE film paper, fiberglass braided, mica paper and fiberglass braided.

3, according to claims 1 and 2 described a kind of multiple insulation HTHP cables; it is characterized in that; the outermost layer of described multiple insulated electric conductor quadruple insulation refractory protection and the outer heat-resistant insulating layer of described cable adopt the processing of infiltration high-temperature insulation oil; its insulating oil adopts high temperature resistant silicone oil, and drying is handled.

4,, it is characterized in that the high-quality conductor of described multiple insulated electric conductor adopts the pure nickel conductor according to claims 1,2 or 3 described a kind of multiple insulation HTHP cables.

According to claims 1,2 or 3 described a kind of multiple insulation HTHP cables, it is characterized in that 5, heat-resistant insulating layer adopts mica paper in the described cable.

6, it is characterized in that according to claims 1,3 and 5 described a kind of multiple insulation HTHP cables, the outer heat-resistant insulating layer of described cable, material adopts fiberglass braided.