CN206323581U

CN206323581U - A kind of safety-type temperature selflimiting electric tracing band

Info

Publication number: CN206323581U
Application number: CN201621380201.XU
Authority: CN
Inventors: 李贻连; 卜基峰; 陈更芬
Original assignee: ANBANG ELECTRIC Co Ltd
Current assignee: ANBANG ELECTRIC Co Ltd
Priority date: 2016-12-15
Filing date: 2016-12-15
Publication date: 2017-07-11
Anticipated expiration: 2026-12-15

Abstract

The utility model proposes a kind of safety-type temperature selflimiting electric tracing band, including main heating tape, secondary heating tape, heat conduction shroud ring layer, inner sheath insulating barrier, water-proof heat-insulation layer, woven shield, strengthen external sheath layer, main heating tape includes the first cored wire extended along electric-heating belt length direction and the first ptc layer for being wrapped in the first cored wire periphery, secondary heating tape includes the second cored wire extended along electric-heating belt length direction and the second ptc layer for being wrapped in the second cored wire periphery, heat conduction shroud ring layer is wrapped in main heating tape, outside secondary heating tape, heat conduction shroud ring layer is set in main heating tape including multiple, secondary heating tape periphery and along the spaced apart heat conduction shroud ring ring of electric-heating belt length direction, it is outside that inner sheath insulating barrier is wrapped in heat conduction shroud ring layer, water-proof heat-insulation layer is wrapped in outside inner sheath insulating barrier, woven shield is wrapped in outside water-proof heat-insulation layer, strengthen external sheath layer to be wrapped in outside woven shield.The utility model heat tracing temperature, heat tracing effect is good.

Description

A kind of safety-type temperature selflimiting electric tracing band

Technical field

The utility model is related to electric-heating belt technical field, more particularly to a kind of safety-type temperature selflimiting electric tracing band.

Background technology

Electric-heating belt is a kind of new high-tech product, since it enters application field from the seventies in last century, extensively should Conveyed in the duct for liquid object with the anti-freezing and heat-insulating of tank body, maintain technological temperature, heating highway, ramp, crossing, Eaves and floor etc..Electric-heating belt is generally divided into parallel electric-heating belt and tandem electric-heating belt, parallel electric-heating belt Resistance wire uses parallel, and the caloric value of unit length is constant, and power output is not changed by the change of environment temperature, But temperature selflimiting electric tracing band heat tracing temperature is unstable in the prior art, heat tracing effect is poor.

Utility model content

Based on technical problem present in background technology, the utility model proposes a kind of safety-type self-temperature limiting electric tracing Band.

The utility model proposes a kind of safety-type temperature selflimiting electric tracing band, including main heating tape, secondary heating tape, heat conduction bag Cuff-layer, inner sheath insulating barrier, water-proof heat-insulation layer, woven shield, reinforcement external sheath layer, main heating tape is included along electric tracing belt length First cored wire of degree direction extension and the first ptc layer for being wrapped in the first cored wire periphery, secondary heating tape are included along electric companion Second cored wire of tropical length direction extension and the second ptc layer for being wrapped in the second cored wire periphery, heat conduction shroud ring layer bag It is rolled in main heating tape, outside secondary heating tape, heat conduction shroud ring layer includes multiple being set in main heating tape, secondary heating tape periphery and along electricity The spaced apart heat conduction shroud ring ring of heating tape length direction, inner sheath insulating barrier is wrapped in heat conduction shroud ring layer outside, waterproof thermal-insulated Layer is wrapped in outside inner sheath insulating barrier, and woven shield is wrapped in outside water-proof heat-insulation layer, is strengthened external sheath layer and is wrapped in volume Knit outside screen layer.

It is preferred that, the first cored wire is closed by the first conductor and the first carbon fibre bundle strand and formed.

It is preferred that, the second cored wire is closed by the second conductor and the second carbon fibre bundle strand and formed.

It is preferred that, fiberglass flame braiding layer, flame resistant glass are provided between water-proof heat-insulation layer and inner sheath insulating barrier The count of fiber braiding layer is not less than 85% and its thickness is not less than 3mm.

It is preferred that, woven shield is reticulated using tinned copper wire braiding, and count is not less than 88%.

In the utility model, the first ptc layer, the second ptc layer have positive temperature coefficient property, in accompanying-heat cable Work in, when the power is turned on, accompanying-heat cable is in low temperature, the first ptc layer, the second ptc layer contract on cooling, electricity Resistive is small, heating power increase, temperature is increased；In high temperature, the first ptc layer, the second ptc layer expanded by heating, Resistance becomes big, and heating power reduces, and reduces temperature；The utility model is by being arranged and leading in main heating tape, secondary heating tape periphery Hot shroud ring ring so that main heating tape, secondary heating tape temperature difference are smaller so that electric-heating belt heat tracing temperature stabilization, improve heat tracing Effect；The cored wire of the utility model first is formed by the first conductor and the conjunction of the first carbon fibre bundle strand, the second cored wire is by the second conductor With the second carbon fibre bundle strand close form, the adhesive force between conductor and ptc material core body can be improved, with this improve conductor with The stability of contact resistance between ptc material, so as to improve the stability of temperature selflimiting electric tracing band.

Brief description of the drawings

Fig. 1 be the utility model proposes a kind of safety-type temperature selflimiting electric tracing band structural representation.

Embodiment

As shown in figure 1, Fig. 1 be the utility model proposes a kind of safety-type temperature selflimiting electric tracing band structural representation.

Reference picture 1, the utility model proposes a kind of safety-type temperature selflimiting electric tracing band, including main heating tape 1, secondary heating tape 2nd, heat conduction shroud ring layer, inner sheath insulating barrier 3, fiberglass flame braiding layer 8, water-proof heat-insulation layer 4, woven shield 5, reinforcement are outer Restrictive coating 6, wherein：

Main heating tape 1 includes the first cored wire 11 extended along electric-heating belt length direction and is wrapped in outside the first cored wire 11 First ptc layer 12 in week, the first cored wire 11 is by the first conductor 111 and the first carbon fibre beam 112 is stranded forms.

Secondary heating tape 2 includes the second cored wire 21 extended along electric-heating belt length direction and is wrapped in outside the second cored wire 21 Second ptc layer 22 in week, the second cored wire 21 is by the second conductor 211 and the second carbon fibre beam 212 is stranded forms.

Heat conduction shroud ring layer is wrapped in main heating tape 1, outside secondary heating tape 2, and heat conduction shroud ring layer includes multiple being set in main companion The torrid zone 1, the secondary periphery of heating tape 2 and along the spaced apart heat conduction shroud ring ring 7 of electric-heating belt length direction.

Inner sheath insulating barrier 3 is wrapped in heat conduction shroud ring layer outside, and water-proof heat-insulation layer 4 is wrapped in outside inner sheath insulating barrier 3.

Fiberglass flame braiding layer 8, fiberglass flame are provided between water-proof heat-insulation layer 4 and inner sheath insulating barrier 3 The count of braiding layer 8 is not less than 85% and its thickness is not less than 3mm, improves the fire protecting performance of electric-heating belt.

Woven shield 5 is wrapped in outside water-proof heat-insulation layer 4, and woven shield 5 is reticulated using tinned copper wire braiding, is compiled Density is knitted not less than 88%.

Strengthen external sheath layer 6 to be wrapped in outside woven shield 5.

The utility model proposes a kind of safety-type temperature selflimiting electric tracing band, the first ptc layer 12, the second ptc material Layer 22 has positive temperature coefficient property, and in the work of accompanying-heat cable, when the power is turned on, accompanying-heat cable is in low temperature, and first Ptc layer 12, the contract on cooling of the second ptc layer 22, resistance diminish, heating power increase, temperature is increased；In high temperature When, the first ptc layer 12, the expanded by heating of the second ptc layer 22, resistance become big, and heating power reduces, and reduces temperature； The utility model in main heating tape 1, the secondary periphery of heating tape 2 by being arranged heat conduction shroud ring ring 7 so that main heating tape 1, secondary heating tape 2 temperature differences are smaller so that electric-heating belt heat tracing temperature stabilization, improve heat tracing effect；The first cored wire of the utility model 11 is by One conductor 111 and the first carbon fibre beam 112 it is stranded form, the second cored wire 21 is by the second conductor 211 and the second carbon fibre beam 212 it is stranded form, the adhesive force between conductor and ptc material core body can be improved, improved with this between conductor and ptc material The stability of contact resistance, so as to improve the stability of temperature selflimiting electric tracing band.

The above, only the utility model preferably embodiment, but protection domain of the present utility model is not This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality New technical scheme and its utility model design are subject to equivalent or change, should all cover in protection model of the present utility model Within enclosing.

Claims

1. a kind of safety-type temperature selflimiting electric tracing band, it is characterised in that including main heating tape (1), secondary heating tape (2), heat conduction bag Cuff-layer, inner sheath insulating barrier (3), water-proof heat-insulation layer (4), woven shield (5), reinforcement external sheath layer (6), main heating tape (1) Including the first cored wire (11) extended along electric-heating belt length direction and the first PTC materials for being wrapped in the first cored wire (11) periphery The bed of material (12), secondary heating tape (2) includes the second cored wire (21) extended along electric-heating belt length direction and is wrapped in the second core Second ptc layer (22) of line (21) periphery, heat conduction shroud ring layer is wrapped in main heating tape (1), secondary heating tape (2) outside, leads Hot shroud ring layer includes multiple being set in main heating tape (1), secondary heating tape (2) periphery and along electric-heating belt length direction arranged for interval Heat conduction shroud ring ring (7), inner sheath insulating barrier (3) is wrapped in that heat conduction shroud ring layer is outside, and water-proof heat-insulation layer (4) is wrapped in inner sheath Insulating barrier (3) is outside, and woven shield (5) is wrapped in water-proof heat-insulation layer (4) outside, strengthens external sheath layer (6) and is wrapped in braiding Screen layer (5) is outside.

2. safety-type temperature selflimiting electric tracing band according to claim 1, it is characterised in that the first cored wire (11) is led by first Body (111) and the first carbon fibre beam (112) is stranded forms.

3. safety-type temperature selflimiting electric tracing band according to claim 1, it is characterised in that the second cored wire (21) is led by second Body (211) and the second carbon fibre beam (212) is stranded forms.

4. the safety-type temperature selflimiting electric tracing band according to any one of claim 1-3, it is characterised in that waterproof thermal-insulated Fiberglass flame braiding layer (8), the volume of fiberglass flame braiding layer (8) are provided between layer (4) and inner sheath insulating barrier (3) Density is knitted not less than 85% and its thickness is not less than 3mm.

5. the safety-type temperature selflimiting electric tracing band according to any one of claim 1-3, it is characterised in that woven shield (5) reticulated using tinned copper wire braiding, count is not less than 88%.