Constant-power parallel explosion-proof ribbon heater
By using the structural design of the insulating positioning sleeve and thermal conduction plate in the electric heat belt, the problem of sliding displacement of the heating wire is solved, and efficient heat transfer and constant power effect are achieved.
Patent Information
- Application Number
- CN202422245831.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The heating wires of existing constant power parallel electric heating belts are prone to sliding and displacement, resulting in uneven temperatures and affecting thermal efficiency.
The design of an insulating positioning sleeve and a thermal conductor plate is adopted, and the electric heating wire is fixed through equidistant openings and wire grooves, and the thermal conductor plate is used to accelerate heat transfer.
Effectively prevent the displacement of the electric heating wire, improve the heat transfer efficiency, and ensure the constant power effect.
Smart Images
Figure CN223067220U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric heating tapes, in particular to a constant power parallel explosion-proof electric heating tape. Background Technique
[0002] The parallel explosion-proof electric heating tape is a heating product designed specifically for flammable and explosive environments and is widely used in fields such as petroleum, chemical industry, and pharmaceuticals.
[0003] Since multiple heating sections of the constant power parallel electric heating tape are connected in parallel throughout the length, it is simply referred to as a parallel electric heating tape. Most of it is composed of a power supply busbar and busbar insulation, main insulation, heating wire, outer sheath, metal shielding net, and strengthening sheath.
[0004] The existing constant power parallel electric heating tape directly winds the heating wire on the main insulation layer for heating in intervals. At the same time, in the above structure, the wound heating wires may slide and displace to form a mass, resulting in a phenomenon of high temperature in one section and low temperature in another section, affecting the constant power effect and possibly affecting its thermal efficiency during actual application. Content of the Utility Model
[0005] (I) 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 parallel explosion-proof electric heating tape that is convenient to use, has high heat transfer efficiency, and prevents the displacement of the electric heating wire.
[0007] (II) Technical Solution
[0008] To solve the above technical problem, the technical solution provided by the utility model is: a constant power parallel explosion-proof electric heating tape, including a tape body and two wire cores arranged in parallel in the tape body. An insulating positioning sleeve sleeved on the wire cores is further provided in the tape body, and an electromagnetic shielding layer is also connected between the insulating positioning sleeve and the inner wall of the tape body;
[0009] A plurality of openings are equidistantly arranged along the length direction of the insulating positioning sleeve for cooperating with the wire cores. Electric heating wires connected to the wire cores on both sides are respectively arranged near the upper and lower parts of the insulating positioning sleeve close to the openings. A plurality of heat conduction plates are connected in the tape body at the upper and lower parts of the insulating positioning sleeve, and the heat conduction plates are arranged close to the electric heating wires.
[0010] As an improvement, both ends of the electric heating wire respectively extend into two openings and are fixedly connected to the two wire cores to form connection points;
[0011] A lower wire groove is concavely arranged near the opening on the insulating positioning sleeve, and the electric heating wire is arranged by being clamped into the lower wire groove.
[0012] As an improvement, a heat conduction pressing seat is connected to one side of the heat conduction plate facing the insulating positioning sleeve, and a plurality of upper wire grooves are concavely arranged at the end of the heat conduction pressing seat to cooperate with the lower wire groove.
[0013] As an improvement, the number of the upper wire grooves is the same as that of the lower wire grooves, and a heat reflection coating is coated in the lower wire groove.
[0014] (III) Beneficial effects
[0015] The advantages of the present utility model compared with the prior art are as follows: when in use in this application, the heating wire can be fixed through the cooperation of the specifically opened openings and wire grooves. At the same time, a heat conduction plate is additionally provided. Through the setting of the heat conduction plate, a heating range can be covered as much as possible, and heat transfer can be accelerated, ensuring the heat efficiency during use and being easy to promote and use. Description of the drawings
[0016] Figure 1 is a structural schematic diagram of a cross-section of a constant power parallel explosion-proof heating cable.
[0017] Figure 2 is a structural schematic diagram of a top view of an insulating positioning sleeve.
[0018] Figure 3 is a structural schematic diagram of a side view of a heat conduction plate.
[0019] As shown in the figure: 1, tape body; 2, wire core; 3, insulating positioning sleeve; 4, electromagnetic shielding layer; 5, opening; 6, heating wire; 7, heat conduction plate; 8, lower wire groove; 9, heat conduction pressing seat; 10, upper wire groove; 11, heat reflection coating. Specific embodiments
[0020] The specific embodiments of the present utility model will be further described below with reference to the drawings. The same components are denoted by the same reference numerals.
[0021] 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.
[0022] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there may 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 only for the purpose of illustration.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0024] In order to make the content of this utility model easier to be clearly understood, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this utility model.
[0025] Please refer specifically to the attached Figures 1-3 , a constant power parallel explosion-proof heating cable, comprising a cable body 1 and two wire cores 2 arranged in parallel in the cable body 1. An insulating positioning sleeve 3 sleeved on the wire cores 2 is further arranged in the cable body 1. An electromagnetic shielding layer 4 is also connected between the insulating positioning sleeve 3 and the inner wall of the cable body 1. The electromagnetic shielding layer is made of metal braiding for shielding explosion protection, preferably a copper-plated tin shielding net or a stainless steel shielding net. Among them, the insulating positioning sleeve is made of fluoroplastics or high-temperature resistant silica gel, and the cable body 1 is made of polytetrafluoroethylene PTFE or high-temperature flame-retardant PVC material.
[0026] A plurality of openings 5 are equidistantly arranged along the length direction of the insulating positioning sleeve 3 for cooperating with the wire cores 2. Electric heating wires 6 connected to the two side wire cores 2 are respectively arranged near the upper and lower parts of the insulating positioning sleeve 3 close to the openings 5. A plurality of heat conducting plates 7 are connected between the upper and lower parts of the cable body 1 where the insulating positioning sleeve 3 is located. The heat conducting plates 7 are arranged close to the electric heating wires 6. Among them, the heat conducting plates 7 are made of copper or aluminum.
[0027] Both ends of the electric heating wire 6 respectively extend into the two openings 5 and are respectively connected and fixed to the two wire cores 2 to form connection points; a lower wire groove 8 is concavely arranged on the insulating positioning sleeve 3 near the opening 5, and the electric heating wire 6 is clamped in the lower wire groove 8. In order to further improve the heat conduction effect, a heat conducting pressing seat 9 is connected to one side of the heat conducting plate 7 facing the insulating positioning sleeve 3. A plurality of upper wire grooves 10 are concavely arranged at the end of the heat conducting pressing seat 9 for cooperating with the lower wire groove 8. At the same time, the number of the upper wire grooves 10 is the same as that of the lower wire grooves 8. A heat reflection coating 11 is coated in the lower wire groove 8 for further heat conduction by reflecting heat radiation. A metal oxide coating or a ceramic matrix composite coating or high-temperature resistant insulating paint can be selected.
[0028] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0029] All the standard parts used in the present utility model can 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 the conventional means such as bolts, rivets, welding, etc. which are mature in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which 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.
[0030] The above has described 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, without creative work, a structural manner and an embodiment similar to the technical solution without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.
Claims
1. A constant power parallel explosion-proof electric heating tape, comprising a tape body (1) and two wire cores (2) which are arranged in parallel in the tape body (1), and is characterized in that: An insulating positioning sleeve (3) sleeved with the wire core (2) is further arranged inside the belt body (1), and an electromagnetic shielding layer (4) is also connected between the insulating positioning sleeve (3) and the inner wall of the belt body (1); A plurality of openings (5) arranged in cooperation with the wire core (2) are equidistantly formed in the insulating positioning sleeve (3) along its length direction. Electric heating wires (6) connected to the wire cores (2) on both sides are arranged near the openings (5) at the upper and lower parts of the insulating positioning sleeve (3). A plurality of heat conducting plates (7) are connected inside the belt body (1) at the upper and lower parts of the insulating positioning sleeve (3), and the heat conducting plates (7) are arranged close to the electric heating wires (6).
2. The constant power parallel explosion-proof heating cable according to claim 1, characterized in that: Two end parts of the electric heating wire (6) respectively extend into two openings (5) and are fixedly connected to the two wire cores (2) to form connection points; A lower wire groove (8) is concavely arranged in the insulating positioning sleeve (3) near the opening (5), and the electric heating wire (6) is arranged in the lower wire groove (8) in a clamped manner.
3. The constant power parallel explosion-proof electric heating tape according to claim 2, characterized in that: A heat conducting pressing seat (9) is connected to one side of the heat conducting plate (7) facing the insulating positioning sleeve (3), and a plurality of upper wire grooves (10) are concavely arranged at the end part of the heat conducting pressing seat (9) in cooperation with the lower wire groove (8).
4. The constant power parallel explosion-proof heating cable according to claim 3, characterized in that: The number of the upper wire grooves (10) is the same as that of the lower wire grooves (8), and a heat reflection coating (11) is coated in the lower wire groove (8).