CN202487243U

CN202487243U - Movable metal shielding centralized monitoring type flexible cable for coal mine

Info

Publication number: CN202487243U
Application number: CN2012201086044U
Authority: CN
Inventors: 曹彬; 张海吉; 冯亮
Original assignee: Jiangsu Zhongmei Cable Group Co Ltd
Current assignee: Jiangsu Zhongmei Cable Co Ltd
Priority date: 2012-03-21
Filing date: 2012-03-21
Publication date: 2012-10-10
Anticipated expiration: 2022-03-21

Abstract

The utility model discloses a movable metal shielding centralized monitoring type flexible cable for a coal mine. The cable comprises a cable core; semi-conductive water blocking yarn stuffing is filled in the gap and outer part of the cable core and is externally wrapped with a layer of semi-conductive water blocking band, and an outer sheath is extruded on the outermost layer; and the cable core is formed by twisting multiple power wire cores with a centralized monitoring wire core. The voltage level of the cable can reach 8.7/10kV; and when in power transmission for an underground high-pressure submersible pump of a coal mine, the cable disclosed by the utility model is highly resistant to water, corrosion, interference and flame, and has a centralized monitoring ability.

Description

The monitoring type flexible cable is concentrated with the moving metal shielding in a kind of colliery

Technical field

The utility model relates to the electric wire field, is meant that specifically a kind of colliery is with the concentrated monitoring type flexible cable of moving metal shielding.

Background technology

At present, the existing cable that is used in high pressure diving pump used for electric power connection under the coal mine, its structure generally is by insulated wire cores, the outer braided metal woven shield of core, fill the fire-retardant filler that blocks water, extrude the fire-retardant lapping layer that blocks water, extrude outer jacket constitutes.And prior art is not enough below existing: its structure is single, and water resistance is poor, because the down-hole environment for use is abominable; Flammable, explosiveness gas is many, cable uses as submersible pump cable again, sewage immerses cable easily; Cable is easy to generate infection insulated electro performance, very easily causes security incident.In addition, the cable of high pressure diving pump used for electric power connection does not have the cable surveillance coverage under traditional coal mine, can not fully understand the situation of whole cable operation, for work has brought inconvenience.

The utility model content

The technical problem that the utility model will solve provides a kind of raising waterproof, Corrosion Protection, the flexible cable that anti-tampering, high flame retardant, surveillance coverage are concentrated.

The monitoring type flexible cable is concentrated with the moving metal shielding in a kind of colliery; Comprise cable core; Slit and the outside semiconductive water blocking yarn filler of filling at cable core; Wrapped one deck semiconductive waterstop outside semiconductive water blocking yarn filler, outermost layer extrudes oversheath, and cable core is to be concentrated by some power cores and one to keep watch on that core is stranded to form.

Said concentrated supervision core is outside the pilot wire core conductor, to extrude the pilot wire core insulation, and metal knitted screen is set outside the pilot wire core insulation.

Said power core is by the power line core conductor in the middle of the core, and the conductor shield that sets gradually outward of power line core conductor, insulating barrier, and insulation screen and metal knitted screen are formed.

The beneficial effect of the utility model is:

1, changes the single structure of traditional cable, improved its water resistance and Corrosion Protection.

2, adopt concentrated the supervision, solve the not enough shortcoming of cable surveillance coverage.

3, concentrate to keep watch on the situation of core can the operation of monitoring cable core the time; When insulated wire cores had damage, keeping watch on core can in time feed back to the core problem in the equipment, the problem that makes generation when the staff in time recognizes the cable operation; In time cable is overhauled, guarantee production safety.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment:

As shown in Figure 1, the monitoring type flexible cable is concentrated with moving metal shielding in the described colliery of the utility model, and its main body is a cable core, and this cable core is to be concentrated supervision core is stranded and form with one by some power cores.Wherein concentrating and keeping watch on core is outside pilot wire core conductor 6, to extrude pilot wire core insulation 7, metal knitted screen 8 is set outside pilot wire core insulation 7 forms.The power core is by the power line core conductor 1 in the middle of the core, and the conductor shield 2 that sets gradually outward of power line core conductor, insulating barrier 3, and insulation screen 4 is formed with metal knitted screen 5.At the slit and the outside semiconductive water blocking yarn filler 9 of filling of cable core, wrapped one deck semiconductive waterstop 10 outside semiconductive water blocking yarn filler 9, outermost layer extrudes oversheath 11.

The utility model is mainly used in high voltage pump power transmission under the coal mine; Insulation screen 4 and metal knitted screen 5 have opened the function of shield electromagnetic in the electric power transfer process, and simultaneously, metal knitted screen 5 double as ground wires use; Concentrate to keep watch on the situation of core can the operation of monitoring cable core the time; When insulated wire cores had damage, keeping watch on core can in time feed back to the core problem in the equipment, the problem that makes generation when the staff in time recognizes the cable operation; In time cable is overhauled, guarantee production safety.

The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection range of the utility model.

Claims

1. the monitoring type flexible cable is concentrated with the moving metal shielding in a colliery; Comprise cable core; At the slit and the outside semiconductive water blocking yarn filler (9) of filling of cable core, wrapped one deck semiconductive waterstop (10) outside semiconductive water blocking yarn filler (9), outermost layer extrudes oversheath (11); It is characterized in that cable core is to be concentrated by some power cores and one to keep watch on that core is stranded to form.

2. the monitoring type flexible cable is concentrated with the moving metal shielding in colliery according to claim 1; It is characterized in that; Said concentrated supervision core is outside pilot wire core conductor (6), to extrude pilot wire core insulation (7), and metal knitted screen (8) is set outside pilot wire core insulation (7).

3. the monitoring type flexible cable is concentrated with the moving metal shielding in colliery according to claim 1 and 2; It is characterized in that said power core is by the power line core conductor (1) in the middle of the core; And the conductor shield (2) that sets gradually outward of power line core conductor; Insulating barrier (3), insulation screen (4) and metal knitted screen (5) are formed.