CN216084393U

CN216084393U - Heat tracing heat preservation outdoor cable

Info

Publication number: CN216084393U
Application number: CN202122333297.1U
Authority: CN
Inventors: 张朝东; 张鑫; 计成义
Original assignee: Anhui Huayang Electric Heat Tracing Material Co ltd
Current assignee: Anhui Huayang Electric Heat Tracing Material Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-03-18
Anticipated expiration: 2031-09-26

Abstract

The utility model provides a heat tracing heat preservation outdoor cable which comprises a plurality of cables, wherein the peripheries of the cables are wrapped with armor layers, the peripheries of the armor layers are wrapped with outer sheaths, heat tracing bands are arranged among the cables along the length direction of the cables, the outer surfaces of the heat tracing bands are attached to the outer surfaces of the cables, a plurality of heat conducting plates are further arranged between the circumferential outer surfaces of the heat tracing bands and the armor layers, heat preservation materials are filled in gaps of the cables, heat generated by the heat tracing bands simultaneously heats the cables on one hand, and on the other hand, the heat can be transferred to the armor layers through the heat conducting plates so as to heat the outer sheaths. The heat tracing band in the cable is arranged in the middle of each cable, so that each cable can be heated uniformly, and meanwhile, heat is transferred to the outer sheath through the heat conducting plate, so that the outer sheath is heated uniformly.

Description

Heat tracing heat preservation outdoor cable

Technical Field

The utility model relates to the technical field of cables, in particular to a heat tracing heat preservation outdoor cable.

Background

In extremely cold areas, because the temperature is extremely low, the protective layer and part of rubber materials outside the electric copper wire bundles become brittle and crack, and even the phenomenon of natural cracking and falling occurs, so that the cable cannot be laid and constructed, the operation of equipment needing outdoor moving operation is difficult, and even the equipment cannot be operated at all.

At present, the problem can be solved by adding heat tracing belt in the cable, but in practice, the heat tracing belt is mostly arranged on one side of the cable group, which can cause uneven heating of the cable and uneven heating of the outer sheath, thereby the outer sheath still can crack at the lower temperature.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a heat tracing heat preservation outdoor cable, wherein a heat tracing band in the cable is arranged in the middle of each cable, so that each cable can be uniformly heated, and meanwhile, heat is transferred to an outer sheath through a heat conducting plate, so that the outer sheath is uniformly heated.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a heat tracing outdoor cable that keeps warm, includes many cables, the peripheral parcel of many cables has the armor, the peripheral parcel of armor has the oversheath, it is equipped with the heat tracing band to extend its length direction between many cables, the surface in heat tracing band and the surface laminating of a plurality of cables, still install a plurality of heat-conducting plates between the circumference surface in heat tracing band and the armor, the space department of a plurality of cables fills has insulation material, heat that the heat tracing band produced heats a plurality of cables on the one hand simultaneously, and a plurality of heat-conducting plates of on the other hand accessible are with heat transfer to armor, and then heat the oversheath.

Preferably, the heat tracing band comprises two copper buses, a PTC layer, an insulating layer and a heat conducting sheath, wherein the PTC layer wraps the two copper buses, the insulating layer wraps the PTC layer, and the heat conducting sheath wraps the insulating layer.

Preferably, the insulating layer is a polyolefin insulating layer, and the heat conducting sheath is made of a silicon rubber material.

Preferably, the circumference outer wall of heat conduction sheath is equipped with a plurality of draw-in grooves with a plurality of heat-conducting plates one-to-one along its length direction, the one end of a plurality of heat-conducting plates is inserted into the draw-in groove that corresponds, and the other end of a plurality of heat-conducting plates passes insulation material and is fixed with the armor.

Preferably, the heat insulation material is heat insulation rock wool.

Preferably, the armor is galvanized steel strip.

Preferably, a heat insulation layer is further arranged between the outer sheath and the armor layer, and the heat insulation layer is a nylon heat insulation layer.

The utility model has the beneficial effects that:

1. the heat tracing band is arranged in the middle of the cables, so that the outer surface of the heat tracing band is attached to the outer surfaces of the cables, the cables can be heated simultaneously, and the cables are heated uniformly.

2. Through installing a plurality of heat-conducting plates, can lead the armor with the partial heat that the heat tracing pipe produced, because the armor is the heat conduction metal material, can wholly be heated, and then can make the oversheath be heated evenly.

3. Through filling insulation material, can keep warm to many cables, through setting up the heat preservation, reducible inside thermal loss also provides the buffering for armor and oversheath within a definite time.

Drawings

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

FIG. 2 is a cross-sectional view of a heat trace ribbon according to the present invention.

In the figure: the heat-insulating and heat-conducting cable comprises an outer sheath 1, a heat-insulating layer 2, a heat-conducting plate 3, a cable 4, a heat-insulating material 5, an armor layer 6, a heat tracing band 7, a copper bus 71, a PTC layer 72, an insulating layer 73, a heat-conducting sheath 74 and a clamping groove 75.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1-2, a heat tracing outdoor cable that keeps warm, including many cables 4, the peripheral parcel of many cables 4 has armor 6, the peripheral parcel of armor 6 has oversheath 1, it has heat tracing band 7 to extend its length direction between many cables 4, the surface of heat tracing band 7 and the surface laminating of a plurality of cables 4, still install a plurality of heat-conducting plates 3 between the circumference surface of heat tracing band 7 and the armor 6, the space department of a plurality of cables 4 fills has insulation material 5, heat a plurality of cables 4 of concurrent heating on the one hand of the heat that heat tracing band 7 produced, on the other hand accessible a plurality of heat-conducting plates 3 with heat transfer to armor 6, and then heating oversheath 1.

Further, the heat tracing band 7 comprises two copper bus bars 71, a PTC layer 72, an insulating layer 73 and a heat conducting sheath 74, wherein the PTC layer 72 wraps the two copper bus bars 71, the insulating layer 73 wraps the PTC layer 72, the heat conducting sheath 74 wraps the insulating layer 73, and the two copper bus bars 71 are electrified and heated through the PTC layer.

Further, the insulating layer 73 is a polyolefin insulating layer, and the heat conducting sheath 74 is made of a silicon rubber material, so that the cable 4 has good heat conducting performance, and can be heated simultaneously.

Further, the circumference outer wall of heat conduction sheath 74 is equipped with a plurality of draw-in grooves 75 with a plurality of heat-conducting plates 3 one-to-one along its length direction, and in the draw-in groove 75 that corresponds was inserted into to the one end of a plurality of heat-conducting plates 3, the other end of a plurality of heat-conducting plates 3 passed insulation material 5 and fixed with armor 6, is convenient for assemble.

Further, insulation material 5 is heat preservation rock wool, and a plurality of cables 4 are separated on the one hand to the insulation material 5 of filling, carry on spacingly to it, and on the other hand can effectively keep warm.

Further, armor 6 is the galvanized steel strip, and it is the heat conduction metal material, can wholly be heated, and then can carry out the even heating for oversheath 1.

Further, still be equipped with heat preservation 2 between oversheath 1 and the armor 6, heat preservation 2 is the nylon heat preservation, and the thermal loss of reducible inside also provides the buffering for armor 6 and oversheath 1 within a definite time.

The heat tracing band 7 is arranged in the middle of the cables 4, so that the outer surface of the heat tracing band 7 is attached to the outer surfaces of the cables 4, the two copper buses 71 are electrified and heated through the PTC layer, the heat conducting sheath 74 is made of silicon rubber and has good heat conducting performance, the cables 4 can be heated simultaneously, the cables 4 are heated uniformly, the filled heat insulation material 5 separates the cables 4 to limit the cables 4, and effective heat insulation can be performed; through installing a plurality of heat-conducting plates 3, can conduct the partial heat that the companion torrid zone 7 produced to armor 6, because armor 6 is the galvanized steel strip, it is the heat conduction metal material, can wholly be heated, and then can carry out the even heating for oversheath 1, the heat preservation 2 of setting, reducible inside thermal loss also provides the buffering for armor 6 and oversheath 1 within a definite time.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a heat tracing outdoor cable that keeps warm, includes many cables (4), the peripheral parcel of many cables (4) has armor (6), the peripheral parcel of armor (6) has oversheath (1), its characterized in that, it is equipped with heat tracing band (7) to extend its length direction between many cables (4), the surface of heat tracing band (7) and the surface laminating of a plurality of cables (4), still install a plurality of heat-conducting plates (3) between the circumference surface of heat tracing band (7) and armor (6), the space department of a plurality of cables (4) is filled has insulation material (5), heat that heat tracing band (7) produced heats a plurality of cables (4) on the one hand simultaneously, on the other hand accessible a plurality of heat-conducting plates (3) with heat transfer to armor (6), and then heating oversheath (1).

2. The heat tracing outdoor cable according to claim 1, wherein the heat tracing tape (7) comprises two copper bus bars (71), a PTC layer (72), an insulation layer (73) and a heat conducting sheath (74), the PTC layer (72) wraps the two copper bus bars (71), the insulation layer (73) wraps the PTC layer (72), and the heat conducting sheath (74) wraps the insulation layer (73).

3. The heat tracing outdoor thermal cable according to claim 2, wherein the insulating layer (73) is a polyolefin insulating layer, and the heat conducting sheath (74) is a silicone rubber material.

4. The heat tracing outdoor cable according to claim 2, wherein the heat conducting sheath (74) has a plurality of slots (75) along its length direction corresponding to the heat conducting plates (3), one end of each heat conducting plate (3) is inserted into the corresponding slot (75), and the other end of each heat conducting plate (3) passes through the heat insulating material (5) and is fixed to the armor layer (6).

5. Heat tracing outdoor cable according to claim 1, characterized in that the insulation material (5) is heat-insulating rock wool.

6. Heat trace insulated outdoor cable according to claim 1, characterized in that the armouring layer (6) is galvanized steel strip.

7. The heat tracing outdoor cable of claim 1, wherein an insulating layer (2) is further disposed between the outer sheath (1) and the armor layer (6), and the insulating layer (2) is a nylon insulating layer.