CN113630918A

CN113630918A - Self-temperature-limiting electric tracing band

Info

Publication number: CN113630918A
Application number: CN202110980549.1A
Authority: CN
Inventors: 计成志
Original assignee: Anhui Huanrui Electrothermal Equipment Co ltd
Current assignee: Anhui Huanrui Electrothermal Equipment Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2021-11-09

Abstract

The invention discloses a self-temperature-limiting electric tracing band, wherein self-control conducting layers are arranged on the outer surfaces of two groups of leads, insulating layers are arranged on the outer surfaces of the self-control conducting layers, and shielding layers are arranged on the outer surfaces, far away from the self-control conducting layers, of the insulating layers. The circuit number of each copper core wire in the electric tracing band can change along with the influence of temperature, when the temperature around the electric tracing band is cooled, the self-control conducting layer shrinks to enable the carbon particle conductive plastics to be mutually connected to form a circuit, current flows through the circuits to enable the electric tracing band to heat, when the temperature is increased, the conductive plastics expands, the carbon particles are gradually disconnected, the circuit is interrupted, the resistance is increased, the electric tracing band can automatically reduce power output, when the ambient temperature is cooled, the plastics recover to a shrinking state, the carbon particles can be correspondingly connected to form a circuit, and the heating power of the electric tracing band can automatically rise, so that the function of automatic temperature limitation can be formed.

Description

Self-temperature-limiting electric tracing band

Technical Field

The invention relates to the technical field of electric tracing, in particular to a self-temperature-limiting electric tracing band.

Background

The electric tracing band is widely applied in the field of steel making and is often used as a heat insulation material of equipment to prevent water in a pipeline from being cooled and frozen. After the electric tracing band is wound on the pipeline, the electric tracing band is wrapped by using heat insulation cotton and then is protected and fixed by an iron sheet.

The conventional electric tracing band is usually fixed in length and cannot be effectively cut according to the required length, the electric tracing band can be damaged in a continuous heating state, and the possibility of no high-temperature hot spot or even burning out can be caused by multiple crossed overlapping of the electric tracing band.

Disclosure of Invention

The invention aims to provide a self-temperature-limiting electric tracing band to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a from temperature limiting electric tracing area, includes the wire, the wire sets up to two sets of symmetric distribution, and is two sets of the surface of wire is provided with the automatic control conducting layer that is used for controlling temperature rise and fall, the surface that the wire was kept away from to the automatic control conducting layer is provided with the damaged insulating layer of automatic control conducting layer after preventing irradiation crosslinking, the surface that the automatic control conducting layer was kept away from to the insulating layer is provided with the shielding layer that is used for heat transfer and radiating effect, the surface that the insulating layer was kept away from to the shielding layer is provided with the sheath.

Preferably, the top and the bottom of the outer surfaces of the self-control conducting layer, the insulating layer, the shielding layer and the sheath are provided with arc-shaped arc chamfers.

Preferably, the conducting wire is a copper core conducting wire, the self-control conducting layer is carbon particle conducting plastic, the insulating layer is a polyolefin insulating layer, and the sheath is a fluoroplastic sheath.

Preferably, the conducting wires are arranged into two groups, and the conducting wires and the self-control conducting layer are produced and manufactured in a double-layer co-extrusion mode in the production and manufacturing process.

Preferably, the shielding layer is one of a tinned copper wire shielding layer and an aluminum magnesium alloy shielding layer, and the shielding layer can enhance the tensile property of the whole electric tracing band and can prevent static electricity from being generated.

Preferably, the output voltage of the electric tracing band is set to be 220V and 380V.

Preferably, the bending radius of the electric tracing band is 25.4mm at room temperature of 20 ℃ and 35.0mm at room temperature of-30 ℃.

Compared with the prior art, the invention has the following beneficial effects:

1. the metal shielding layer arranged in the invention can enhance the tensile property of the whole electric tracing band and can prevent static electricity from being generated, and the copper core lead and the self-control conducting layer are produced and manufactured in a double-layer co-extrusion mode in the production and manufacturing process, so that the mutual adhesion of the lead of the electric tracing band and the self-control conducting layer is improved to a certain extent;

2. the circuit number of each copper core wire in the electric tracing band can change along with the influence of temperature, when the temperature around the electric tracing band is cooled, the self-control conducting layer shrinks to enable the carbon particle conductive plastics to be mutually connected to form a circuit, current flows through the circuits to enable the electric tracing band to heat, when the temperature is raised, the conductive plastics expands, the carbon particles are gradually disconnected, the circuit is interrupted, the resistance is increased, the power output of the electric tracing band can be automatically reduced, when the ambient temperature is cooled, the plastics recover to a shrinking state, the carbon particles can be correspondingly connected to form a circuit, and the heating power of the electric tracing band can be automatically raised, so that the function of automatically limiting the temperature can be formed.

Drawings

Fig. 1 is a schematic structural view in front view.

In the figure: 1 conducting wire, 2 self-control conducting layers, 3 insulating layers, 4 shielding layers, 5 sheaths and 6 arc chamfers.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a from temperature limiting electric tracing area, includes wire 1, wire 1 sets up to two sets of symmetric distribution, and is two sets of the surface of wire 1 is provided with the automatic control conducting layer 2 that is used for controlling the temperature rise, the surface that wire 1 was kept away from to automatic control conducting layer 2 is provided with the damaged insulating layer 3 of automatic control conducting layer 2 after preventing the irradiation crosslinking, the surface that automatic control conducting layer 2 was kept away from to insulating layer 3 is provided with shielding layer 4 that is used for heat transfer and radiating effect, the surface that insulating layer 3 was kept away from to shielding layer 4 is provided with sheath 5.

Preferably, the top and the bottom of the outer surfaces of the self-control conducting layer 2, the insulating layer 3, the shielding layer 4 and the sheath 5 are all provided with arc-shaped arc chamfers 6.

Preferably, the lead 1 is a copper core lead, the self-control conductive layer 2 is carbon particle conductive plastic, the insulating layer 3 is a polyolefin insulating layer, and the sheath 5 is a fluoroplastic sheath.

Preferably, the leads 1 are arranged into two groups, and are produced and manufactured in a double-layer co-extrusion mode with the self-control conducting layer 2 in the production and manufacturing process.

Preferably, the shielding layer 4 is one of a tinned copper wire shielding layer and an aluminum magnesium alloy shielding layer, and the shielding layer 4 can enhance the tensile property of the whole electric tracing band and can prevent static electricity from being generated.

When in use, firstly, the insulating layer 3 is arranged to prevent the self-control conducting layer 2 from being damaged after irradiation crosslinking, the shielding layer 4 is arranged to be one of a tinned copper wire shielding layer and an aluminum magnesium alloy shielding layer, the shielding layer 4 made of metal materials can enhance the tensile property of the whole electric tracing band and can prevent static electricity from being generated, the circuit number of each copper core lead 1 in the electric tracing band can be changed along with the influence of temperature, when the temperature around the electric tracing band is cooled, the self-control conducting layer 2 shrinks to enable carbon particle conducting plastics to be mutually connected to form circuits, current flows through the circuits to enable the electric tracing band to generate heat, when the temperature is increased, the expansion of the self-control conducting layer 2 causes the carbon particles to be gradually disconnected and causes the circuit to be interrupted, the resistance is increased, the power output of the electric tracing band can be automatically reduced, and when the ambient temperature is cooled, the self-control conducting layer 2 returns to the shrinking state, the carbon granules are correspondingly connected to form a circuit, and the heating power of the electric tracing band can be automatically increased, so that the function of automatic temperature limitation can be realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A self-limiting electric tracing band comprises a lead (1), and is characterized in that: wire (1) sets up to two sets of symmetric distribution, two sets of the surface of wire (1) is provided with automatic control conducting layer (2) that are used for controlling the temperature and go up and down, the surface that wire (1) were kept away from in automatic control conducting layer (2) is provided with insulating layer (3) that prevent irradiation cross-linking back automatic control conducting layer (2) damaged, the surface that automatic control conducting layer (2) were kept away from in insulating layer (3) is provided with shielding layer (4) that are used for heat transfer and radiating effect, the surface that insulating layer (3) were kept away from in shielding layer (4) is provided with sheath (5).

2. The self-limiting electric tracing band of claim 1, wherein: the top and the bottom of the outer surfaces of the self-control conducting layer (2), the insulating layer (3), the shielding layer (4) and the sheath (5) are provided with arc-shaped chamfers (6).

3. The self-limiting electric tracing band of claim 2, wherein: the wire (1) is a copper core wire, the self-control conducting layer (2) is made of carbon particle conducting plastics, the insulating layer (3) is a polyolefin insulating layer, and the sheath (5) is a fluoroplastic sheath.

4. The self-limiting electric tracing band of claim 3, wherein: the two groups of wires (1) are arranged, and the wires and the self-control conducting layer (2) are produced and manufactured in a double-layer co-extrusion mode in the production and manufacturing process.

5. The self-limiting electric tracing band of claim 4, wherein: the shielding layer (4) is set to be one of a tinned copper wire shielding layer and an aluminum magnesium alloy shielding layer, the shielding layer (4) can enhance the tensile property of the whole electric tracing band, and can prevent static electricity.

6. The self-limiting electric tracing band of claim 5, wherein: the output voltage of the electric tracing band is set to be 220V and 380V.

7. The self-limiting electric tracing band of claim 5, wherein: the bending radius of the electric tracing band is 25.4mm at the room temperature of 20 ℃, and the bending radius of the electric tracing band is 35.0mm at the room temperature of-30 ℃.