CN217933235U

CN217933235U - Skin heat tracing special cable

Info

Publication number: CN217933235U
Application number: CN202221417231.9U
Authority: CN
Inventors: 陈玉东; 黄海琴; 王友香; 徐成业; 高正军; 马林; 夏喜明
Original assignee: Anhui Tiankang Group Co Ltd
Current assignee: Anhui Tiankang Group Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-29
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a skin accompanies hot special type cable, including the three oval polyurethane inner sheath that central symmetry placed that is, it constitutes the cable core to be equipped with the conductor sinle silk between the inboard of polyurethane inner sheath and per two adjacent polyurethane inner sheaths respectively, the conductor sinle silk is including the conductor that sets gradually, high elastic modulus EP rubbers insulating layer and tinned soft copper wire add the dacron silk and weave the insulation shielding layer, it has high temperature resistant fire-retardant filling layer to weave the insulation shielding layer outside at tinned soft copper wire and dacron silk, the cladding has aluminium strip interlocking armor in proper order in the cable core outside, carbon element bellows and low smoke and zero halogen fire-retardant polyolefin sheath, it fills heat preservation and silica gel packing heat preservation to fill aluminium silicate cotton respectively in the inboard and the outside of carbon element bellows. The utility model adopts three oval polyurethane inner sheaths to separate the six conductor wire cores, which do not affect each other and ensure the working stability of the wire cores; two layers of heat preservation layers are arranged on the outer side of the cable core, so that the cable is guaranteed to have good heat preservation performance.

Description

Skin heat tracing special cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a skin companion heat special type cable.

Background

At present, heat tracing cables have been widely used in many fields, such as industrial use mainly in places where it is required to prevent liquid substances in pipes or tanks from freezing/flowing at a low speed, petroleum, chemical, thermal power plants, etc., public facilities mainly for heat tracing of fire fighting pipes, civil use for indoor heating and winter outdoor pipe anti-freezing. Most present heat tracing cables's heat preservation effect is unsatisfactory, especially when the cable is in the great or extremely poor operational environment of cold and hot alternation, the cable is difficult to keep invariable temperature, can cause the influence for the communication signal of cable. In addition, the internal structure of the existing cable is easy to deform, and the extrusion resistance and the distortion resistance are poor.

SUMMERY OF THE UTILITY MODEL

Because the heat preservation effect of the heat tracing cable that the background art exists is unsatisfactory, inner structure yielding, anti extrusion and the not good technical problem of resistant distortion performance, the utility model provides a skin heat tracing special type cable.

The utility model adopts the technical proposal that:

the utility model provides a skin companion hot special type cable, is equipped with the conductor sinle silk respectively and constitutes the cable core including three oval polyurethane inner sheath that central symmetry placed that is between the inboard of polyurethane inner sheath and per two adjacent polyurethane inner sheaths, the conductor sinle silk including the conductor and in proper order the cladding at the high elastic modulus EPT rubber insulating layer in the conductor outside and tin-plated soft copper wire with dacron silk weave the insulation shield, it has high temperature resistant fire-retardant filling layer to weave the insulation shield outside at tin-plated soft copper wire with dacron silk, the cladding has aluminium strip interlocking armor in proper order in the cable core outside, bellows and low smoke and zero halogen fire-retardant polyolefin sheath, has aluminium silicate cotton packing heat preservation and silica gel packing heat preservation respectively to fill in the inboard and the outside of carbon element bellows.

And a thin steel wire rope is also arranged on the inner side of the cable core.

And polypropylene filling layers are filled in gaps inside the cable core.

The conductor is formed by twisting tinned copper wires and aramid fiber tows.

The high-temperature resistant flame-retardant filling layer is a glass fiber rope filling layer.

The utility model has the advantages that: the utility model adopts three oval polyurethane inner sheaths to separate the six conductor wire cores, which are not affected with each other and ensure the working stability of the wire cores; two layers of heat insulation layers are arranged on the outer side of the cable core, so that the cable is guaranteed to have good heat insulation performance; the carbon corrugated pipe is arranged between the two heat-insulating layers, the filling layer can fill the ripple part of the carbon corrugated pipe, the stability of the cable is improved, the internal structure is not easy to deform, and the extrusion resistance and the distortion resistance are good; the carbon corrugated pipe has the advantages of light weight, small bending radius, high external pressure resistance, small insulation resistance, corrosion resistance, no leakage, rat bite prevention, good weather resistance, high yield, obstacle flexibility and the like.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The utility model provides a skin accompanies hot special type cable, is equipped with the conductor sinle silk respectively between the inboard of polyurethane inner sheath 1 and per two adjacent polyurethane inner sheaths 1 and constitutes the cable core including three oval polyurethane inner sheath 1 that central symmetry placed, the conductor sinle silk including conductor 2 and in proper order the cladding in the high elastic modulus EPT rubber insulating layer 3 and the tinned soft copper wire in the conductor 2 outside with the dacron silk weave insulation screen 4, it has high temperature resistant fire-retardant filling layer 5 to weave insulation screen 4 outside packing at tinned soft copper wire and dacron silk, the cladding has aluminium strip interlocking armor 6, carbon bellows 7 and low smoke and zero halogen fire-retardant polyolefin sheath 8 in the cable core outside in proper order, packs respectively in the inboard of carbon bellows 7 and the outside and has aluminium silicate cotton to fill heat preservation 9 and silica gel to fill heat preservation 10.

And a thin steel wire rope 11 is also arranged on the inner side of the cable core.

And polypropylene filling layers are filled in gaps inside the cable core.

The conductor 2 is formed by twisting tinned copper wires and aramid fiber tows, so that the tensile property of the conductor is improved, and the conductor is not easy to break.

The high-temperature resistant flame-retardant filling layer 5 is a glass fiber rope filling layer.

The polyurethane inner sheath 1 has a thermoplastic linear structure, has better stability, chemical resistance, rebound resilience and mechanical property than a PVC foaming material, and has smaller compression deformability; the heat insulation, sound insulation, shock resistance and gas defense performance are good; the composite material has the advantages of light weight, excellent sound insulation and heat insulation performance, chemical resistance, good electrical performance, easiness in processing, low water absorption, oil resistance, wear resistance, low temperature resistance, aging resistance, high hardness, good elasticity and the like.

The carbon corrugated pipe 7 is made of high density polyethylene raw material and carbon particles and other additives, and is produced into a pipeline with a corrugated closed annular pipe wall structure through a vacuum plastic-suction forming process. The pipe has the advantages of light weight, small bending radius, high external pressure resistance, small insulation resistance, corrosion resistance, no leakage, rat bite prevention, good weather resistance, high yield, obstacle flexibility and the like. The carbon corrugated pipe is in a special thread shape, so that the pressure resistance and the impact resistance of the carbon corrugated pipe greatly exceed the GB/T13381.9 technical standard. Light weight, high strength, high temperature resistance, high corrosion resistance, random length and free bending.

The high-temperature-resistant flame-retardant filling layer 5 has the advantages of good high-temperature resistance and flame retardance.

The aluminum silicate cotton filled heat insulation layer 9 can ensure that the temperature generated by the cable is not easy to dissipate, so that the temperature can be continuously used; the silica gel filled heat insulation layer 10 is thick and solid, the heat insulation effect is best, and the whole temperature tends to be constant.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a skin accompanies hot special type cable, its characterized in that is equipped with the conductor sinle silk respectively between the inboard of polyurethane inner sheath and per two adjacent polyurethane inner sheaths and constitutes the cable core including three oval polyurethane inner sheaths that central symmetry placed, conductor sinle silk including the conductor and in proper order the cladding at the high elastic modulus EPT rubber insulating layer in the conductor outside and tin-plated soft copper wire with the dacron silk weave the insulation screen, weave the insulation screen outside at tin-plated soft copper wire with the dacron silk and pack and have high temperature resistant fire-retardant filling layer, the cladding has aluminium strip interlocking armor, carbon bellows and low smoke and zero halogen fire-retardant polyolefin sheath in proper order outside the cable core, packs respectively in the inboard and the outside of carbon bellows and has aluminium silicate cotton filling layer and silica gel heat preservation.

2. The skin heat tracing special cable according to claim 1, wherein a thin steel wire rope is further arranged on the inner side of the cable core.

3. The skin heat tracing special cable according to claim 1, wherein polypropylene filling layers are filled in the gaps inside the cable core.

4. The special skin heat tracing cable according to claim 1, wherein the conductor is formed by twisting tinned copper wires and aramid tows.

5. The special skin heat tracing cable according to claim 1, wherein the high temperature resistant and flame retardant filler layer is a glass fiber rope filler layer.