Constant-power series explosion-proof ribbon heater

Abstract

The utility model discloses a constant power series explosion-proof ribbon heater, which comprises an outer protective sleeve and wire cores connected in the outer protective sleeve, a reinforcing core is connected in the middle of the outer protective sleeve, a plurality of groups of wire cores are arranged around the middle reinforcing core, a temperature-resistant heat-insulating layer is arranged outside the middle reinforcing core, a filler is arranged between the outer protective sleeve and the wire cores, and the outer protective sleeve and the wire cores are connected in series. The outer side of the outer protective sleeve is coated with an anti-corrosion coating, and the inner side of the outer protective sleeve is further connected with an anti-explosion layer. Compared with the prior art, the constant-power series explosion-proof ribbon heater has the advantages of being good in structural strength, capable of meeting installation requirements and capable of preventing breakage.

Description

Technical Field

[0001] The utility model relates to an explosion-proof electric heating tape, in particular to a constant power series explosion-proof electric heating tape. Background Art

[0002] Electric heating tapes are a new type of high-tech product. Since they entered the application field in the 1970s, they can be widely used in the transportation of liquid objects in pipelines, the anti-freezing and heat preservation of tanks, the maintenance of process temperatures, the heating of roads, ramps, crosswalks, eaves, floors, etc.

[0003] The series electric heating tape is formed by connecting the heating cores in series into a loop. When a large current passes through the heating cores, heat is generated by itself, forming a continuous and uniformly heated electric heating tape.

[0004] In actual work applications, due to the design requirements and actual conditions of different projects, there may be requirements for the strength of the electric heating tape. The existing electric heating tape structures are mostly composed of heating cores, insulation layers, and shielding layers, and poor strength may cause cracking and affect the use. Content of the Utility Model

[0005] (1) Problems to be Solved

[0006] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a constant power series explosion-proof electric heating tape with good structural strength, which can meet the installation needs and prevent breakage.

[0007] (2) Technical Solutions

[0008] To solve the above technical problems, the technical solution provided by the utility model is: a constant power series explosion-proof electric heating tape, including an outer protective sleeve and a wire core connected and arranged inside the outer protective sleeve. A reinforcing core is connected and arranged in the middle of the outer protective sleeve. Multiple groups of wire cores are arranged around the middle reinforcing core. A temperature-resistant heat-insulating layer is arranged outside the middle reinforcing core. A filler is arranged between the outer protective sleeve and the wire core. An anti-corrosion coating is coated on the outer side of the outer protective sleeve. An explosion-proof layer is also connected inside the outer protective sleeve.

[0009] As an improvement, the reinforcing core is a braided rope.

[0010] As an improvement, the explosion-proof layer is a metal braided layer.

[0011] As an improvement, the filler is made of PP rope or hemp rope.

[0012] As an improvement, the outer protective sleeve is made of fluoroplastics.

[0013] (3) Beneficial Effects

[0014] The advantages of the present utility model compared with the prior art are as follows: In this application, by installing a strengthening core in the middle of the outer protective sleeve, the strength of the cable body can be greatly increased, providing support for the heating core and preventing the cable from breaking. In this application, by replacing the internal filler with PP rope or hemp rope, the crack resistance of the cable is further increased, and the leakage grounding protection is carried out through the metal braided layer for explosion-proof protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a constant power series explosion-proof heating cable.

[0016] As shown in the figure: 1. Outer protective sleeve; 2. Core; 3. Middle strengthening core; 4. Temperature-resistant and heat-insulating layer; 5. Filler; 6. Anticorrosive coating; 7. Explosion-proof layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further describes the specific embodiments of the present utility model with reference to the accompanying drawings. The same components are denoted by the same reference numerals.

[0018] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0021] In order to make the content of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0022] Please refer specifically to the attached Figure 1 , a constant power series explosion-proof heating cable, comprising an outer protective sleeve 1 and a core 2 connected and arranged inside the outer protective sleeve 1.

[0023] When in use, a reinforcing core 3 is connected in the middle inside the outer protective sleeve 1. A plurality of wire cores 2 are arranged around the middle reinforcing core 3, so as to ensure the strength of the wire body. A temperature-resistant and heat-insulating layer 4 is arranged outside the middle reinforcing core 3, which is convenient for the temperature of the cable to diffuse outwards. The reinforcing core 3 is made of braided rope material, so as to increase the strength of the cable.

[0024] A filler 5 is arranged between the outer protective sleeve 1 and the wire core 2. An anti-corrosion coating 6 is coated on the outer side of the outer protective sleeve 1. An explosion-proof layer 7 is further connected to the inner side of the outer protective sleeve 1. The explosion-proof layer 7 is a metal braided layer. The filler 5 is made of PP rope or hemp rope, and the filler further increases the strength of the cable.

[0025] When in use, the outer protective sleeve 1 is made of fluoroplastics, such as polytetrafluoroethylene PTFE and perfluoroethyl propylene FEP, and has excellent high-temperature resistance, corrosion resistance, chemical resistance and electrical insulation properties.

[0026] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0027] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets and welding that are mature in the prior art. The machines, parts and equipment all adopt the conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0028] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. All in all, if those skilled in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative purpose of the present utility model, they should all fall within the protection scope of the present utility model.

Claims

1. A constant power series explosion-proof heating cable, comprising an outer protective sleeve (1) and a wire core (2) connected and arranged inside the outer protective sleeve (1), characterized in that: A reinforcing core (3) is connected and provided in the middle of the outer protective sleeve (1). A plurality of groups of wire cores (2) are arranged around the middle reinforcing core (3). A temperature-resistant and heat-insulating layer (4) is provided outside the middle reinforcing core (3). A filler (5) is provided between the outer protective sleeve (1) and the wire core (2). An anticorrosive coating (6) is coated on the outer side of the outer protective sleeve (1). An explosion-proof layer (7) is further connected to the inner side of the outer protective sleeve (1).

2. The constant power series explosion-proof electric heating belt according to claim 1, characterized in that: The reinforcing core (3) is a braided rope.

3. The constant power series explosion-proof electric heating tape according to claim 1, characterized in that: The explosion-proof layer (7) is a metal braided layer.

4. A constant power series explosion-proof electric heating belt according to claim 1, characterized in that: The filler (5) is made of PP rope or hemp rope.

5. A constant power series explosion-proof electric heating belt according to claim 1, characterized in that: The outer protective sleeve (1) is made of fluoroplastics.

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