CN203554712U

CN203554712U - Overlong pressure-resisting heating oil well cable

Info

Publication number: CN203554712U
Application number: CN201320669900.6U
Authority: CN
Inventors: 林新国
Original assignee: Anhui Tian Cai Cable Group Co Ltd
Current assignee: Anhui Tian Cai Cable Group Co Ltd
Priority date: 2013-10-26
Filing date: 2013-10-26
Publication date: 2014-04-16
Anticipated expiration: 2023-10-26

Abstract

The utility model discloses an overlong pressure-resisting heating oil well cable, which comprises an outer sheath, a cable core arranged inside the outer sheath and a heat tracing pipe. The cable core comprises a conductor layer, an insulation layer coating the conductor layer and an inner sheath coating the insulation layer; a filling layer internally coats the heat tracing pipe; the outer wall of the heat tracing pipe and the outer wall of the inner sheath are joined via a heat conduction layer; the outer sheath coats an heat insulation layer; and the heat insulation layer coats the inner sheath, the heat tracing pipe and the heat conduction layer. According to the overlong pressure-resisting heating oil well cable, heat generated by the heat conduction layer can be timely emitted, heat is not accumulated to result in self-ignition of the cable, the emitted heat can be stored for heat insulation of the entire cable structure, and then the use performances of the cable used in a low temperature environment can be ensured.

Description

A kind of oil well overlength pressure resistant type heating cable

Technical field

The utility model relates to cable technology field, relates in particular to a kind of oil well overlength pressure resistant type heating cable.

Background technology

Cable is the carrier that electric power is carried, its use scenes is boundless, also make in different application scenarioss not identical to the requirement of cable performance yet, particularly at some such as under low temperature environment, existing cable in use faces problems, such as pull and bending process in, cable easily damages, and, in low temperature environment, it is broken, more fragile, urgently to be resolved hurrily that cable jacket easily becomes.

Utility model content

The problem existing for prior art, the purpose of this utility model is to propose a kind of oil well overlength pressure resistant type heating cable, possesses higher flexibility and toughness, while using under low temperature environment, not fragile.

A kind of oil well overlength pressure resistant type heating cable, comprise oversheath, be placed in cable core and heat tracing pipe in oversheath, described cable core is comprised of the insulating barrier of conductor layer and coating conductor layer and the inner sheath of coated insulation layer, coated packed layer in heat tracing pipe, between heat tracing pipe outer wall and inner sheath outer wall, by heat-conducting layer, be connected, oversheath is coated heat-insulation layer, and heat-insulation layer is coated inner sheath, heat tracing pipe, heat-conducting layer.

Oversheath adopts polythene material to make.

Heat-insulation layer adopts polyurethane material to make.

Heat-conducting layer adopts heat conduction cement production systD.

The utility model in actual use, the heat that not only conductor layer produces can shed in time, can not make accumulation of heat, cause cable to occur spontaneous combustion, and the heat giving out can be saved, for the insulation of whole cable structure, thereby guarantee the serviceability that cable is used under low temperature environment.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of oil well overlength pressure resistant type heating cable that the utility model proposes.

Embodiment

As shown in Figure 1, Fig. 1 is the structural representation of a kind of oil well overlength pressure resistant type heating cable that the utility model proposes.

With reference to Fig. 1, the utility model proposes a kind of oil well overlength pressure resistant type heating cable, comprise oversheath 1, be placed in cable core and heat tracing pipe 2 in oversheath 1, described cable core is comprised of the insulating barrier 4 of conductor layer 3 and coating conductor layer 3 and the inner sheath 5 of coated insulation layer 4, the interior coated packed layer 6 of heat tracing pipe 2, between heat tracing pipe 2 outer walls and inner sheath 5 outer walls, by heat-conducting layer 7, be connected the coated heat-insulation layer 8 of oversheath 1, the coated inner sheath 5 of heat-insulation layer 8, heat tracing pipe 2, heat-conducting layer 7.Oversheath 1 adopts polythene material to make.Heat-insulation layer 8 adopts polyurethane material to make.Heat-conducting layer 7 adopts heat conduction cement production systD.

In actual use, conductor layer 3 heating powers, its heat reaches heat tracing pipe 2 via insulating barrier 4 and inner sheath 5 and heat-conducting layer 7, and reaches the whole construction of cable by heat tracing pipe 2.

The heat that not only conductor layer 5 produces can shed in time, can not make accumulation of heat, cause cable to occur spontaneous combustion, and the heat giving out can be saved, for the insulation of whole cable structure, thereby guarantee the serviceability that cable is used under low temperature environment.

The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection range of the present utility model.

Claims

1. an oil well overlength pressure resistant type heating cable, it is characterized in that, comprise oversheath (1), be placed in cable core and heat tracing pipe (2) in oversheath (1), described cable core is comprised of the insulating barrier (4) of conductor layer (3) and coating conductor layer (3) and the inner sheath (5) of coated insulation layer (4), coated packed layer (6) in heat tracing pipe (2), between heat tracing pipe (2) outer wall and inner sheath (5) outer wall, by heat-conducting layer (7), be connected, oversheath (1) is coated heat-insulation layer (8), heat-insulation layer (8) is coated inner sheath (5), heat tracing pipe (2), heat-conducting layer (7).

2. oil well overlength pressure resistant type heating cable according to claim 1, is characterized in that, oversheath (1) adopts polythene material to make.

3. oil well overlength pressure resistant type heating cable according to claim 1, is characterized in that, heat-insulation layer (8) adopts polyurethane material to make.

4. oil well overlength pressure resistant type heating cable according to claim 1, is characterized in that, heat-conducting layer (7) adopts heat conduction cement production systD.