CN2252385Y

CN2252385Y - High-temp. heavy-current water-cooled cable

Info

Publication number: CN2252385Y
Application number: CN 96235792
Authority: CN
Inventors: 刘家鼎; 杜功儒
Original assignee: HUAXING ELECTRIC FURNACE CO Ltd XIAN
Current assignee: HUAXING ELECTRIC FURNACE CO Ltd XIAN
Priority date: 1996-04-09
Filing date: 1996-04-09
Publication date: 1997-04-16
Anticipated expiration: 2006-04-09

Abstract

The utility model relates to an insulated cable which is provided with a heat radiating device and is divided by shape, more specifically to a high-temperature heavy-current water-cooled cable. The utility model mainly solves the defects of the existing like electric cables such as large electric energy loss, unsafe use, easy hot shutdown which is caused by aging and leakage, etc. The utility model comprises a joint, a copper stranded wire, a clamping hoop, a core pipe, and a center pipe which is connected with the core pipe and is arranged in the copper stranded wire. The utility model is characterized in that the outside of the copper stranded wire is provided with a stainless steel corrugated pipe, and the outside of the stainless steel corrugated pipe is provided with an insulating cover with high-temperature resistance. The utility model can be used in high temperature environment such as electric arc furnaces, electric slag furnaces and ore hot furnaces.

Description

The big electric current water-cooled cable of high temperature

The utility model relates to a kind of insulated cable by the shape differentiation that has heat abstractor, the big electric current water-cooled cable of a kind of high temperature of more specifically saying so.

The occasion of many use cables such as arc furnace, electroslag furnace, the hot stove in ore deposit, be in 100～800 ℃ hot environment through regular meeting, in the prior art, typically use bare cable or common water-cooled cable, its shortcoming is: bare cable resistance under hot environment doubles, electric energy loss is big, and occurs accident easily; The sebific duct of common water-cooled cable can wear out rapidly when high temperature, leak, and makes the replacing sebific duct frequent, causes unnecessary heat to stop work.

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art and provides a kind of being suitable for to use in hot environment, and electric energy loss is little, the big electric current water-cooled cable of the high temperature of long service life.

For finishing above-mentioned purpose, technical solution provided by the utility model is: the big electric current water-cooled cable of a kind of high temperature, comprise: joint 1, two ends are fixed on the copper stranded conductor 6 in the joint 1, the core pipe 5 that links to each other with joint 1 and link to each other and the central tube 7 between copper stranded conductor 6 with this core pipe, clip 2, its special character is, side is provided with a corrugated stainless steel tubing 3 outside described copper stranded conductor 6, the two ends of this corrugated stainless steel tubing 3 are straight tube-like and are welded on the joint 1, its arranged outside one deck high-temperature insulation cover 4, described clip 2 is located at the two ends of high-temperature insulation cover 4.

High-temperature insulation cover 4 in the above-mentioned technical solution can be an alumina silicate fibre cloth, aluminize insulation protection film or other high temperature resistant and have certain flexibility material, but with alumina silicate fibre cloth insulating cover serviceability better and cost lower.

Accompanying drawing has been described a preferred embodiment of the present utility model.

Fig. 1 is the broken section structure chart of the preferred embodiment;

Fig. 2 is the A-A cutaway view of Fig. 1.

Each label declaration is as follows among the figure:

The 1-copper sleeve, 2-clip, 3-corrugated stainless steel tubing, 4-high-temperature insulation cover, the metal-cored pipe of 5-, 6-copper stranded conductor, 7-central tube.

Referring to Fig. 1, Fig. 2, the big electric current water-cooled cable of this high temperature has two copper sleeves 1, the two ends of four copper stranded conductors 6 are securely fixed in the copper sleeve 1, the outer end of copper sleeve 1 is the plane, it also can be tubular type, equipment on the user needs to decide, so that connect, central tube 7 is between four copper stranded conductors 6, can be used for supporting copper stranded conductor 6, central tube 7 is a hollow, many radial holes are arranged on its tube wall, make inside and outside current circulate mutually, central tube 7 links to each other with metal-cored pipe 5, core pipe 5 links to each other with the endoporus of copper sleeve 1 again, the corrugated stainless steel tubing made from antimagnetic material stainless steel 3 is enclosed within the outside of four annealed copper strand wires 6, so only adopting corrugated stainless steel tubing is because stainless steel has anti-magnetic, bellows can be crooked with whole cable, and copper stranded conductor 6 effectively can be separated with the external world, the two ends of described corrugated stainless steel tubing 3 are that straight tube-like and weldering are tied on the outer rim of copper sleeve 1, leave certain clearance between itself and the copper stranded conductor 6, with the flow that guarantees water conductor is fully cooled off, in order to insulate and to alleviate thermal-radiating influence, also be wrapped with the high-temperature insulation cover 4 that one deck is made by alumina silicate fibre cloth on the outer wall of corrugated stainless steel tubing 3, the two ends of this high-temperature insulation cover 4 are fixed on the corrugated stainless steel tubing 3 by clip 2.

In conjunction with the foregoing description as can be seen, the utility model has following advantage compared to existing technology:

1, no matter be the heat that big electric current produces conductor, or the heat of high ambient temperature transmission, all can effectively be taken away by current, can reduce conductor Yin Wendu raising and too much increase resistance, so saves energy, minimizing electric energy loss greatly;

2, one deck high-temperature insulation cover and corrugated stainless steel tubing are set outside cable, both can have increased cable fail safe in use, can prolong its useful life again, and reduce the heat that causes because of wear out, leak etc. and stop work.

Claims

1, the big electric current water-cooled cable of a kind of high temperature, comprise: joint (1), two ends are fixed on the copper stranded conductor (6) in the joint (1), the core pipe (5) that links to each other with joint (1) and link to each other with this core pipe and be positioned at central tube (7) between the copper stranded conductor (6), clip (2), it is characterized in that: side is provided with a corrugated stainless steel tubing (3) outside described copper stranded conductor (6), the two ends of this corrugated stainless steel tubing (3) are straight tube-like and are welded on the joint (1), its arranged outside one deck high-temperature insulation cover (4), described clip (2) is located at the two ends of high-temperature insulation cover (4).

2, the big electric current water-cooled cable of high temperature according to claim 1 is characterized in that: described high-temperature insulation cover (4) is an alumina silicate fibre cloth insulating cover.