Fireproof series constant power electric heat tracing band

Abstract

The utility model relates to the field technical field of electric heat tracing band, a fireproof series connection constant power electric heat tracing band, including core line and inner sheath, the outer wall of core line is fixedly connected with inner sheath, the outer wall of inner sheath is fixedly connected with filling foam, the outer wall of filling foam is fixedly connected with first adhesive layer, the outer wall of first adhesive layer is connected with protection mechanism. Through the simplified installation step of connecting block and through -hole, the outer wall of fixed distance of outer sheath is fixed with connecting block, after the rolling band passes through the through -hole on connecting block, makes the rolling band and external bundle fixed, can flexibly adapt to different fixed needs, not only reduces the time and energy needed for installation, but also can effectively reduce the looseness or damage due to improper installation, improves the stability of overall installation.

Description

Technical Field

[0001] This utility model relates to the technical field of electric heating tape, specifically a fireproof series constant power electric heating tape. Background Technology

[0002] Heat tracing tape is a new type of high-tech product. Since it entered the application field in the 1970s, it has been widely used in petroleum, chemical, power, metallurgy, light industry, food, refrigeration, construction, gas, agricultural and sideline product production and many other industries due to its advantages such as preventing overheating, easy use and maintenance and saving energy. It is suitable for temperature control, heat tracing, heat preservation and heating of pipelines, equipment and containers, especially when the materials are easy to decompose, deteriorate, crystallize, condense and freeze.

[0003] For example, the ultra-high temperature fireproof series constant power electric heating cable with authorization announcement number "CN216451563U" solves the problem of excessively high heating temperature of existing ultra-high temperature fireproof series constant power electric heating cables. The above-mentioned cable improves the fire resistance performance of the electric heating cable by forming a double protection of heat-resistant layer and fireproof layer, so that it can still maintain good working performance at high temperature. In addition, it is equipped with insulating heat-conducting particles filled in the gap between the insulating layer and the conductive plastic layer. The insulating heat-conducting particles have a long service life and will not fail. Considering that the surface of the existing ultra-high temperature fireproof series constant power electric heating cable is bare, it is easily affected by external factors when installed in the external environment, which can easily lead to poor installation stability. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing ultra-high temperature fireproof series constant power electric heating tapes are prone to poor installation stability due to interference from external factors, and to propose a fireproof series constant power electric heating tape.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fireproof series constant power electric heating tape, comprising a core wire and an inner sheath, wherein the outer wall of the core wire is fixedly connected to the inner sheath, the outer wall of the inner sheath is fixedly connected to the filling foam, the outer wall of the filling foam is fixedly connected to a first adhesive layer, and a protective mechanism is connected to the outer wall of the first adhesive layer.

[0006] This design features a nickel-chromium alloy wire core with a low temperature coefficient of resistance (±5%), ensuring stable power output. The single continuous structure with no parallel nodes prevents localized overheating, and the foam filling provides excellent insulation, effectively reducing heat loss and improving the efficiency of the electric heating tape.

[0007] Preferably, the protective mechanism includes a stainless steel wire braided layer, the inner wall of which is bonded to an adhesive layer, the outer wall of which is movably connected to a mica tape, and the outer wall of which is fixedly connected to a flame-retardant layer.

[0008] This feature includes a 0.2mm stainless steel wire braided layer (for mechanical damage resistance and electromagnetic shielding), mica tape, and a flame-retardant layer made of halogen-free flame-retardant polyolefin material, which effectively prevents the spread of flames and improves the fire resistance of the electric heating tape.

[0009] Preferably, the flame-retardant layer is fixedly connected to the outer side of the second adhesive layer, and the outer wall of the second adhesive layer is connected to an installation mechanism.

[0010] This second adhesive layer on the outside of the flame-retardant layer not only improves the adhesion between the layers, but also provides a reliable guarantee for the stability of the installation mechanism.

[0011] Preferably, the installation mechanism includes an outer sheath, the inner wall of which is fixedly connected to a second adhesive layer, the outer wall of which is fixedly connected to a connecting block, and the inner wall of the connecting block is machined with a through hole.

[0012] The outer sheath of this device is made of high-strength material, which can effectively resist external mechanical damage and chemical corrosion, extending the service life of the electric heating cable. The design of the connecting block facilitates installation and fixing, while the through hole provides convenience for the insertion of the cable, ensuring that the electric heating cable can be firmly fixed in the required position during use.

[0013] Preferably, the inner wall of the through hole is movably connected to the strip.

[0014] The stainless steel strip used in this installation offers excellent corrosion resistance and high strength, effectively securing the overall structure of the electric heating cable and preventing loosening or damage during use. Furthermore, the strip's flexibility allows it to adapt to various installation environments.

[0015] Preferably, the outer wall of the outer sheath is connected to the yarn braided layer.

[0016] The braided layer of this feature is made of high-strength fiber material, which has good wear resistance and tensile strength, and can effectively protect the external structure of the electric heating cable from external mechanical damage.

[0017] The fireproof series constant power electric heating tape proposed in this utility model has the following advantages: the installation steps are simplified by the connecting block and through hole. The outer wall of the outer sheath is fixed to the connecting block at a fixed distance. After the heating tape passes through the through hole on the connecting block, the heating tape is tied and fixed to the outside. It can flexibly adapt to different fixing requirements, which not only reduces the time and effort required for installation, but also effectively reduces loosening or damage caused by improper installation and improves the stability of the overall installation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the internal structure of the inner and outer sheaths;

[0020] Figure 3 for Figure 1 Schematic diagram of the installation mechanism;

[0021] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 for Figure 1 Enlarged schematic diagram of the intermediate strip structure;

[0023] Figure 6 for Figure 1 Schematic diagram of the core wire and inner sheath structure.

[0024] In the diagram: 1. Core wire, 2. Inner sheath, 3. Foam filling, 4. First adhesive layer, 5. Protective mechanism, 501. Stainless steel wire braided layer, 502. Mica tape, 503. Flame retardant layer, 6. Second adhesive layer, 7. Installation mechanism, 701. Outer sheath, 702. Connecting block, 703. Through hole, 8. Rolled strip, 9. Wire braided layer. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] Please see Figure 1-6 In this embodiment, a fireproof series constant power electric heating tape includes a core wire 1 and an inner sheath 2. The outer wall of the core wire 1 is fixedly connected to the inner sheath 2, the outer wall of the inner sheath 2 is fixedly connected to the filling foam 3, the outer wall of the filling foam 3 is fixedly connected to the first adhesive layer 4, and the outer wall of the first adhesive layer 4 is connected to a protective mechanism 5.

[0027] The protective mechanism 5 includes a stainless steel wire braided layer 501. The stainless steel wire braided layer 501 and the mica tape 502 can effectively enhance the mechanical protection performance of the electric heating cable and also have a certain electromagnetic shielding effect, thus ensuring the stable operation of the electric heating cable in complex environments. The inner wall of the stainless steel wire braided layer 501 is bonded to the adhesive layer 4, the outer wall of the stainless steel wire braided layer 501 is movably connected to the mica tape 502, and the outer wall of the mica tape 502 is fixedly connected to the flame retardant layer 503.

[0028] The flame retardant layer 503 is fixedly connected to the outer side of the second adhesive layer 6. The outer wall of the second adhesive layer 6 is connected to the mounting mechanism 7. The mounting mechanism 7 includes an outer sheath 701. The inner wall of the outer sheath 701 is fixedly connected to the second adhesive layer 6. The outer wall of the outer sheath 701 is fixedly connected to the connecting block 702. The inner wall of the connecting block 702 is machined with a through hole 703.

[0029] The connecting block 702 and the through hole 8 simplify the installation steps. The outer wall of the outer sleeve 701 is fixed to the connecting block 702 at a fixed distance. After the strip 8 passes through the through hole 8 on the connecting block 702, the strip 8 is tied and fixed to the outside. It can flexibly adapt to different fixing requirements, which not only reduces the time and effort required for installation, but also effectively reduces loosening or damage due to improper installation and improves the stability of the overall installation.

[0030] The inner wall of the through hole 703 is movably connected to the strip 8, and the outer wall of the outer sheath 701 is wrapped with the braided layer 9.

[0031] Working principle:

[0032] In the production and assembly process, the multi-layer structure of the fireproof series constant power electric heating tape makes the connection between the components tighter and more stable. The fixed connection between the core wire 1 and the inner sheath 2 ensures the stability of the internal conductive parts. The gradual superposition of the filling foam 3, the first adhesive layer 4 and subsequent layers achieves a seamless connection of the overall structure through precise processes. The addition of the stainless steel wire braided layer 501 and the mica tape 502 further enhances the protective performance. At the same time, the strong adhesion between the flame retardant layer 502 and the second adhesive layer 6 lays the foundation for the stability of the installation mechanism 7.

[0033] During use and installation, the high-strength material of the outer sheath 701 can effectively resist external mechanical damage and chemical corrosion, ensuring the long-term operation of the electric heating cable in complex environments. The connecting block 702 and the through hole 8 simplify the installation steps. The connecting block 702 and the through hole 8, together with the stainless steel strip 8, are bound and fixed to the outside, which can flexibly adapt to different fixing requirements and ensure that the electric heating cable is firmly installed in the target position. The braided wire layer 9 provides additional protection for the external structure and avoids damage to the equipment caused by external mechanical forces.

[0034] Through the optimized design of production, assembly, and installation, the electric heating cable has demonstrated excellent performance in practical applications. Its stable power output and excellent thermal insulation performance significantly reduce heat loss and improve energy efficiency. At the same time, the mica tape 502 and flame-retardant layer 503 effectively reduce safety hazards and extend the service life of the equipment. Whether for heat tracing and insulation of industrial pipelines or for antifreeze protection in special environments, it fully meets the needs of users.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fireproof series constant power electric heating tape, comprising a core wire (1) and an inner sheath (2), wherein the outer wall of the core wire (1) is fixedly connected to the inner sheath (2), characterized in that: The outer wall of the inner sheath (2) is fixedly connected to the filling foam (3), the outer wall of the filling foam (3) is fixedly connected to the first adhesive layer (4), and the outer wall of the first adhesive layer (4) is connected to a protective mechanism (5).

2. The fire rated, series constant power electroheat tracing tape of claim 1, wherein: The protective mechanism (5) includes a stainless steel wire braided layer (501), the inner wall of which is bonded to the adhesive layer (4), the outer wall of which is movably connected to the mica tape (502), and the outer wall of which is fixedly connected to the flame retardant layer (503).

3. The fire rated, series constant power electroheat tracing tape of claim 2, wherein: The flame-retardant layer (503) is fixedly connected to the outside of the second adhesive layer (6), and the outer wall of the second adhesive layer (6) is connected to an installation mechanism (7).

4. The fire rated, series constant power electroheat tracing tape of claim 3, wherein: The installation mechanism (7) includes an outer sheath (701), the inner wall of which is fixedly connected to the second adhesive layer (6), the outer wall of which is fixedly connected to the connecting block (702), and the inner wall of which is machined with a through hole (703).

5. The fire rated, series constant power electroheat tracing tape of claim 4, wherein: The inner wall of the through hole (703) is movably connected to the strip (8).

6. The fire rated, series constant power electroheat tracing tape of claim 4, wherein: The outer wall of the outer sheath (701) is wrapped with the silk braided layer (9).

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