A stretch-resistant, high-strength electrical heat tracing tape

Abstract

The utility model discloses a kind of electric heat tracing band of tensile strength, including heating inner core, outer sheath, auxiliary tensile wire and deformation protection layer, outer sheath is wrapped in the outside of heating inner core, two groups of wire ducts are symmetrically processed and formed in the two sides of outer sheath, auxiliary tensile wire is separately embedded in two groups of wire ducts, auxiliary tensile wire includes reinforcing thread and several groups of positioning block evenly distributed on reinforcing thread, several groups of positioning block are equidistantly fixed in wire duct, deformation protection layer is processed and formed in the inside of outer sheath, deformation protection layer includes main vein and several groups of branch vein distributed in the two sides of main vein, main vein is located in the middle of outer sheath, several groups of branch vein are distributed in the edge of outer sheath, the outer end of branch vein extends to wire duct place.The electric heat tracing band designed in the utility model can effectively improve the tensile resistance of electric heat tracing band, reduce the possibility of damage when laying electric heat tracing band.

Description

Technical Field

[0001] This utility model relates to the field of electric heat tracing technology, specifically to an electric heat tracing cable with high tensile strength. Background Technology

[0002] Electric heating tape consists of a conductive polymer, two parallel metal wires, and an insulating sheath. Its key features include a high positive temperature coefficient of the conductive polymer, and the parallel connection of the wires allows for automatic adjustment of output power based on temperature changes in the heated system. It automatically limits the heating temperature, can be cut to any length or extended within a certain range, and allows for multiple overlaps without the risk of overheating or burning. Electric heating tape is commonly used for insulation and freeze protection of industrial and agricultural pipelines. Workers lay and secure the heating tape to the pipeline, where it generates heat to insulate and prevent freezing.

[0003] However, existing electric heating cables have the following problems when laid in pipelines: During the winding and laying process, to ensure tight adhesion between the heating cable and the pipeline surface, workers typically apply force and pre-tighten the cable, causing tensile deformation. This can easily damage the cable's outer sheath and potentially its inner core. Therefore, a corresponding technical solution needs to be designed to address these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a high tensile strength electric heating cable, which solves the technical problem that when laying electric heating cables around pipes, in order to ensure the tightness of the electric heating cable to the pipe surface, workers usually apply force to the electric heating cable and pre-tighten it, causing the electric heating cable to stretch and deform. On the one hand, this can easily lead to damage to the outer skin of the electric heating cable, and on the other hand, it may lead to damage to the inner core.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-tensile-strength electric heating tape, comprising a heating inner core, an outer sheath, auxiliary tensile wires, and a deformation protection layer. The outer sheath wraps around the outer side of the heating inner core. Two sets of conductor cavities are symmetrically formed on both sides of the outer sheath. Two sets of auxiliary tensile wires are provided and are respectively embedded in the two sets of conductor cavities. The auxiliary tensile wires include reinforcing wires and several sets of positioning blocks evenly distributed on the reinforcing wires. The several sets of positioning blocks are equidistantly fixed in the conductor cavities. The deformation protection layer is formed inside the outer sheath. The deformation protection layer includes a main vein and several sets of branch veins distributed on both sides of the main vein. The main vein is located in the middle of the outer sheath, and the several sets of branch veins are distributed on the edge of the outer sheath. The outer ends of the branch veins extend to the conductor cavities.

[0006] In a preferred embodiment of this utility model, the reinforcing wire, the main vein, and the branch veins are all made of glass fiber. The diameter of the reinforcing wire is smaller than the inner diameter of the conductor cavity, and the diameter of the main vein is larger than the diameter of the branch veins.

[0007] In a preferred embodiment of this utility model, the branch veins are generally arc-shaped and have the same surface curvature as the electric heating tape, with the two adjacent groups of branch veins on the left and right sides being staggered.

[0008] In a preferred embodiment of the present invention, the positioning block includes a main block and two sets of guide blocks formed on both sides of the main block. The main block and the guide blocks are provided with wire grooves, and the reinforcing wire passes through the wire grooves and is fixedly connected to the guide blocks.

[0009] In a preferred embodiment of this utility model, the diameter of the main block is greater than the diameter of the guide block, and the diameter of the main block is equal to the width of the wire groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model improves the existing electric heating cable structure by designing auxiliary tensile wires on both sides of the electric heating cable to ensure its tensile strength. In addition, a deformation protection layer is designed on the upper surface of the electric heating cable. When the electric heating cable is bent along the pipe surface, the deformation protection layer can improve the strength of the electric heating cable while ensuring its deformation resistance.

[0012] 2. The electric heat tracing cable designed in this utility model can effectively improve the tensile strength of the electric heat tracing cable and reduce the possibility of damage during the laying of the electric heat tracing cable. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention;

[0014] Figure 2 This is a structural diagram of the deformation protection layer described in this utility model;

[0015] Figure 3 This is a structural diagram of the positioning block described in this utility model.

[0016] In the diagram: 1. Heating inner core; 2. Outer sheath; 3. Auxiliary tensile wire; 4. Deformation protection layer; 6. Conductor cavity; 7. Reinforcing wire; 8. Positioning block; 9. Main vein; 10. Branch vein; 11. Main block; 12. Guide block; 13. Conductor groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution: a high tensile strength electric heating tape, including a heating inner core 1, an outer sheath 2, auxiliary tensile wires 3, and a deformation protection layer 4. The outer sheath 2 wraps around the outer side of the heating inner core 1. Two sets of conductor cavities 6 are symmetrically formed on both sides of the outer sheath 2. The auxiliary tensile wires 3 are divided into two sets and are respectively embedded in the two sets of conductor cavities 6. The auxiliary tensile wires 3 include reinforcing wires 7 and several sets of positioning blocks 8 evenly distributed on the reinforcing wires 7. The several sets of positioning blocks 8 are fixed at equal intervals in the conductor cavities 6. The deformation protection layer 4 is formed inside the outer sheath 2. The deformation protection layer 4 includes a main vein 9 and several sets of branch veins 10 distributed on both sides of the main vein 9. The main vein 9 is located in the middle of the outer sheath 2, and the several sets of branch veins 10 are distributed on the edge of the outer sheath 2. The outer ends of the branch veins 10 extend to the conductor cavities 6.

[0019] Further improvements, such as Figure 2 As shown, the reinforcing wire 7, the main vein 9, and the branch vein 10 are all made of glass fiber. The diameter of the reinforcing wire 7 is smaller than the inner diameter of the conductor cavity 6, and the diameter of the main vein 9 is larger than the diameter of the branch vein 10, which improves the strength and tensile strength of the electric heating tape.

[0020] Further improvements, such as Figure 2 As shown, the branch vein 10 has an overall arc-shaped structure and the same surface curvature as the electric heating tape. The two adjacent groups of branch veins 10 are staggered. The main vein 9 and the branch veins 10 are distributed in a leaf vein-like structure, which can improve the strength of the electric heating tape while ensuring its deformability.

[0021] Further improvements, such as Figure 3 As shown, the positioning block 8 includes a main block 11 and two sets of guide blocks 12 formed on both sides of the main block 11. The main block 11 and the guide blocks 12 have wire grooves 13 inside. The reinforcing wire 7 passes through the wire grooves 13 and is fixedly connected to the guide blocks 12 to fix and guide the reinforcing wire 7.

[0022] Specifically, the diameter of the main block 11 is greater than the diameter of the guide block 12, and the diameter of the main block 11 is equal to the width of the wire groove 13, so as to facilitate fixing the positioning block 8 in the wire cavity 6.

[0023] During use: Auxiliary tensile wires 3 are designed on both sides of the electric heating cable. The strength is improved by the glass fiber material of the reinforcing wire 7, thereby ensuring the tensile strength of the electric heating cable. In addition, a deformation protection layer 4 is designed on the upper surface of the electric heating cable. When the electric heating cable is bent along the surface of the pipe, the deformation protection layer 4 can improve the strength of the electric heating cable while ensuring its deformation resistance.

[0024] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-tensile-strength electric heating tape, characterized in that: The device includes a heating inner core (1), an outer sheath (2), auxiliary tensile wires (3), and a deformation protection layer (4). The outer sheath (2) wraps around the outer side of the heating inner core (1). Two sets of conductor channels (6) are symmetrically formed on both sides of the outer sheath (2). The auxiliary tensile wires (3) are divided into two sets and are respectively embedded in the two sets of conductor channels (6). The auxiliary tensile wires (3) include reinforcing wires (7) and several sets of positioning blocks evenly distributed on the reinforcing wires (7). 8) Several sets of positioning blocks (8) are fixed at equal intervals in the conductor cavity (6). The deformation protection layer (4) is formed inside the outer sheath (2). The deformation protection layer (4) includes a main vein (9) and several sets of branch veins (10) distributed on both sides of the main vein (9). The main vein (9) is located in the middle of the outer sheath (2). Several sets of branch veins (10) are distributed on the edge of the outer sheath (2). The outer end of the branch veins (10) extends to the conductor cavity (6).

2. The electric heating tape with high tensile strength according to claim 1, characterized in that: The reinforcing line (7), main vein (9) and branch vein (10) are all made of glass fiber. The diameter of the reinforcing line (7) is smaller than the inner diameter of the wire cavity (6), and the diameter of the main vein (9) is larger than the diameter of the branch vein (10).

3. The electric heating tape with high tensile strength according to claim 2, characterized in that: The branch (10) has an overall arc-shaped structure and the same surface curvature as the electric heating tape. The two adjacent groups of the branch (10) are staggered.

4. The electric heating tape with high tensile strength according to claim 2, characterized in that: The positioning block (8) includes a main block (11) and two sets of guide blocks (12) formed on both sides of the main block (11). The main block (11) and the guide blocks (12) have wire grooves (13) inside. The reinforcing wire (7) passes through the wire grooves (13) and is fixedly connected to the guide blocks (12).

5. The electric heating tape with high tensile strength according to claim 4, characterized in that: The diameter of the main block (11) is greater than the diameter of the guide block (12), and the diameter of the main block (11) is equal to the width of the wire groove (13).

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