Pipeline type electric heating module

Abstract

The utility model relates to the technical field of pipeline type heating, in particular to a pipeline type electric heating module which comprises a heating pipe, a heating mechanism is arranged on the outer side of the heating pipe, protection mechanisms are arranged at the two ends of the heating pipe, the heating mechanism comprises a substrate adhesion layer, and an interface reinforcing agent is fixedly installed on the outer side of the substrate adhesion layer. A graphene heating layer is fixedly mounted on the outer side of the interface reinforcing agent, a current distribution layer is fixedly mounted on the outer side of the graphene heating layer, a packaging insulating layer is fixedly mounted on the outer side of the current distribution layer, and a heat reflecting layer is fixedly mounted on the outer side of the packaging insulating layer; according to the utility model, the graphene heating layer and the current distribution layer are combined to realize rapid and uniform heating, and the heat efficiency and precision are improved by using the heat reflection layer; and meanwhile, the flexible transition design of the packaging insulating layer and the substrate adhesion layer is adopted, and the corrosion-resistant substrate and the interface reinforcing agent are combined, so that vibration and chemical erosion in thermal expansion difference and complex environments are adapted, the service life is prolonged, and the maintenance requirements are reduced.

Description

Technical Field

[0001] This utility model relates to the field of pipeline heating technology, specifically a pipeline electric heating module. Background Technology

[0002] In industrial fluid handling and pipeline transportation systems, pipeline electric heating modules are often required to regulate the temperature of liquid or gaseous media to meet specific process conditions or equipment operation requirements. Traditional heating solutions typically employ external heat exchangers, built-in resistance elements, or coil heating structures to indirectly transfer heat through heat conduction or fluid circulation. The design of such modules must consider heating efficiency, electrical safety, and compatibility with pipeline systems. Furthermore, high-temperature, corrosive media, or complex flow conditions in industrial settings pose technical challenges to the selection of heating module materials, sealing protection, and uniform heat distribution. With the increasing demand for compact and integrated industrial equipment, related fields are continuously exploring heating solutions that can be directly embedded in pipelines, possess high-efficiency heat conversion capabilities, and adapt to harsh environments.

[0003] Currently available pipe-type electric heating modules are prone to low heating efficiency, local overheating, and axial temperature difference problems due to uneven heat conduction and high thermal inertia of resistance wires or ordinary heating elements. They also lack compensation design for thermal expansion differences, and the materials have insufficient corrosion resistance and mechanical strength, making them prone to structural deformation, interface peeling, or frequent damage in complex industrial environments. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline-type electric heating module to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pipe-type electric heating module includes a heating tube, a heating mechanism disposed on the outside of the heating tube, and protective mechanisms disposed at both ends of the heating tube. The heating mechanism includes a substrate attachment layer, an interface reinforcing agent fixedly installed on the outside of the substrate attachment layer, a graphene heating layer fixedly installed on the outside of the interface reinforcing agent, a current distribution layer fixedly installed on the outside of the graphene heating layer, an encapsulation insulation layer fixedly installed on the outside of the current distribution layer, and a heat reflection layer fixedly installed on the outside of the encapsulation insulation layer.

[0007] Preferably, the protective mechanism includes a sealing cylinder, a reinforcing rib is fixedly installed on the outside of the sealing cylinder, the reinforcing rib has connecting screw holes at both ends, and the sealing cylinder has a wiring hole on the side near the reinforcing rib.

[0008] Preferably, the sealing cylinder is movably fitted with a sealing cap at both ends, a connecting piece is fixedly installed on the outside of the sealing cap, the connecting piece is movably installed on one side of the reinforcing rib, and a connecting hole is provided on the connecting piece.

[0009] Preferably, a connecting screw is movably installed in the connecting hole, and the connecting screw is screwed into the connecting screw hole.

[0010] Preferably, a threaded assembly tube is fixedly installed on the side of the cover away from the connecting piece, an inner clamping plate is fixedly installed on the side of the cover away from the threaded assembly tube, and an outer clamping plate is fixedly installed on the side of the cover near the inner clamping plate.

[0011] Preferably, a gasket is installed between the inner and outer clamping plates, and a heating tube is movably installed between the inner and outer clamping plates near the gasket.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This pipeline-type electric heating module combines a graphene heating layer with a current distribution layer to achieve rapid and uniform heating through the Joule effect. At the same time, it uses a heat reflection layer to directionally reflect residual heat, significantly improving heating efficiency and temperature control accuracy.

[0014] 2. This pipeline-type electric heating module, through a flexible transition design between the encapsulation insulation layer and the substrate attachment layer, combined with a corrosion-resistant metal substrate and interface reinforcing agent, effectively adapts to differences in thermal expansion and vibration and chemical corrosion in complex environments, extending service life and reducing maintenance requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the heating element of this utility model;

[0017] Figure 3 This is a disassembly diagram of the protective mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the planar structure of the heating mechanism of this utility model.

[0019] In the diagram: 101, heating tube; 102, heating mechanism; 103, protective mechanism; 104, substrate adhesion layer; 105, interface reinforcing agent; 106, graphene heating layer; 201, current distribution layer; 202, encapsulation insulation layer; 203, heat reflective layer; 204, sealing tube; 205, reinforcing rib; 206, connecting screw hole; 301, wiring hole; 302, cap; 303, connecting piece; 304, connecting hole; 305, connecting screw; 306, threaded assembly tube; 401, inner clamping plate; 402, outer clamping plate; 403, gasket. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0022] A pipe-type electric heating module includes a heating tube 101, a heating mechanism 102 disposed on the outside of the heating tube 101, and protective mechanisms 103 disposed at both ends of the heating tube 101. The heating mechanism 102 includes a substrate attachment layer 104, an interface reinforcing agent 105 fixedly installed on the outside of the substrate attachment layer 104, a graphene heating layer 106 fixedly installed on the outside of the interface reinforcing agent 105, a current distribution layer 201 fixedly installed on the outside of the graphene heating layer 106, an encapsulation insulating layer 202 fixedly installed on the outside of the current distribution layer 201, and a heat reflective layer 203 fixedly installed on the outside of the encapsulation insulating layer 202.

[0023] The above scheme achieves a stable bond between the corrosion-resistant metal substrate and the heating structure and provides mechanical support through the substrate adhesion layer; strengthens the interfacial bonding between different material layers through the interface reinforcing agent; achieves high thermal conductivity and rapid and uniform heating through the graphene heating layer; distributes current evenly through the current distribution layer to avoid local overheating; provides electrical isolation and mechanical buffering through the encapsulation insulation layer; and reduces heat diffusion and improves thermal efficiency through the heat reflection layer.

[0024] In this embodiment, preferably, the protective mechanism 103 includes a sealing cylinder 204, a reinforcing rib 205 is fixedly installed on the outside of the sealing cylinder 204, the reinforcing rib 205 has connecting screw holes 206 at both ends, and the sealing cylinder 204 has a wiring hole 301 on the side near the reinforcing rib 205.

[0025] The above solution achieves the sealing and protection of the heating tube end through the sealing tube, enhances the overall structural strength of the sealing tube through the reinforcing ribs, provides an interface for quick assembly with other components through the connecting screw holes, and creates a channel for guiding wires to pass through and connect to an external power source through the wiring holes.

[0026] In this embodiment, preferably, the sealing cylinder 204 is movably mounted with a sealing cap 302 at both ends, and a connecting piece 303 is fixedly mounted on the outside of the sealing cap 302. The connecting piece 303 is movably mounted on one side of the reinforcing rib 205, and a connecting hole 304 is provided on the connecting piece 303.

[0027] The above solution enables quick disassembly and maintenance through the movable installation of the cap. The connection between the connecting piece and the connecting hole achieves positioning and temporary fixation between the cap and the sealing cylinder. The connection between the connecting hole and the connecting screw provides a pre-positioning effect for subsequent fastening.

[0028] In this embodiment, preferably, a connecting screw 305 is movably installed in the connecting hole 304, and the connecting screw 305 is screwed into the connecting screw hole 206.

[0029] The above solution achieves a stable connection between the cap and the sealing cylinder through the screw connection between the connecting screw and the connecting screw hole. The repeated locking structure can prevent loosening and enhance the sealing effect.

[0030] In this embodiment, preferably, a threaded assembly tube 306 is fixedly installed on the side of the cover 302 away from the connecting piece 303, an inner clamping plate 401 is fixedly installed on the side of the cover 302 away from the threaded assembly tube 306, and an outer clamping plate 402 is fixedly installed on the side of the cover 302 close to the inner clamping plate 401.

[0031] The above scheme enables rapid docking with other fluid pipelines through threaded assembly pipes. The inner and outer clamping plates can clamp and fix the end of the heating pipe. The double clamping plate structure can disperse stress and protect against local deformation.

[0032] In this embodiment, preferably, a gasket 403 is installed between the inner card plate 401 and the outer card plate 402, and a heating tube 101 is movably installed between the inner card plate 401 and the outer card plate 402 near the gasket 403.

[0033] The above scheme utilizes the gasket between the inner and outer clamping plates to buffer vibration and compensate for thermal expansion. Clamping the heating tube restricts its axial displacement. The combination of the clamping plates and gaskets seals the fluid channel and prevents leakage.

[0034] In this embodiment, a pipe-type electric heating module is used by first welding connecting wires onto the current distribution layer 201 (silver nanowire conductive network or metallized carbon fiber). Then, the heating tube 101 is inserted through the sealed cylinder 204, and the connecting wires are passed through the wiring hole 301. After insertion, the user connects the cover 302 to the sealed cylinder 204, so that the heating tube 101 is fitted between the inner clamping plate 401 and the outer clamping plate 402, and clamps the gasket 403. After clamping, the user inserts a connecting screw 305 through the connecting hole 304 and connects the connecting screw... The connection of hole 206 fixes the cap 302 to the sealing cylinder 204, thereby fixing the heating tube 101. Then, the threaded assembly tube 306 is connected to the fluid passage pipe, completing the overall assembly and fixing of the module, allowing liquid flow. During liquid flow, the connecting wires are connected to the control module. When the control module is powered on, current enters through the connecting wires and is evenly distributed to the graphene heating layer 106 (single-layer or multi-layer CVD-grown graphene) via the conductive network of the current distribution layer 201. Graphene, with its unique electron migration... Its characteristics include converting electrical energy into heat energy through the Joule effect. The heat rapidly diffuses along the planar lattice structure of graphene and is transferred to the target heating surface through the substrate adhesion layer 104 (corrosion-resistant metal foil, such as 316L stainless steel foil or titanium alloy). The surface of the substrate adhesion layer 104 is specially treated to form a micro-rough structure, which, when combined with the interface reinforcing agent 105 (silane coupling agent or epoxy resin adhesive), strengthens the adhesion to the graphene layer, ensuring efficient heat transfer. The mechanical strength and corrosion resistance of the substrate adhesion layer 104 enable it to withstand vibrations in complex industrial environments. The system effectively controls axial temperature difference by balancing thermal diffusion and thermal inertia, while resisting erosion by dynamic and chemical media. The encapsulation insulation layer 202 (flexible silicone or polyimide) forms a flexible transition between the substrate attachment layer 104 and the graphene heating layer 106. The elastic material compensates for the thermal expansion differences of different materials, preventing structural failure under temperature cycling. The outer heat reflective layer 203 (high reflectivity coating, such as aluminized polyester film or ceramic coating) directionally reflects residual heat to the heating area, improving overall energy efficiency. Therefore, rapid heating of liquids can be achieved after power is applied.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe-type electric heating module, characterized in that: The device includes a heating tube (101), a heating mechanism (102) is provided on the outside of the heating tube (101), and protective mechanisms (103) are provided at both ends of the heating tube (101). The heating mechanism (102) includes a substrate attachment layer (104), an interface reinforcing agent (105) is fixedly installed on the outside of the substrate attachment layer (104), a graphene heating layer (106) is fixedly installed on the outside of the interface reinforcing agent (105), a current distribution layer (201) is fixedly installed on the outside of the graphene heating layer (106), an encapsulation insulating layer (202) is fixedly installed on the outside of the current distribution layer (201), and a heat reflection layer (203) is fixedly installed on the outside of the encapsulation insulating layer (202).

2. The pipeline electric heating module according to claim 1, characterized in that: The protective mechanism (103) includes a sealing tube (204), a reinforcing rib (205) is fixedly installed on the outside of the sealing tube (204), the reinforcing rib (205) has connecting screw holes (206) at both ends, and a wiring hole (301) is provided on the side of the sealing tube (204) near the reinforcing rib (205).

3. A pipeline-type electric heating module according to claim 2, characterized in that: The sealing cylinder (204) has a sealing cover (302) movably installed at both ends. A connecting piece (303) is fixedly installed on the outside of the sealing cover (302). The connecting piece (303) is movably installed on one side of the reinforcing rib (205). A connecting hole (304) is provided on the connecting piece (303).

4. A pipeline-type electric heating module according to claim 3, characterized in that: A connecting screw (305) is movably installed in the connecting hole (304), and the connecting screw (305) is screwed into the connecting screw hole (206).

5. A pipe-type electric heating module according to claim 4, characterized in that: A threaded assembly tube (306) is fixedly installed on the side of the cover (302) away from the connecting piece (303), an inner clamping plate (401) is fixedly installed on the side of the cover (302) away from the threaded assembly tube (306), and an outer clamping plate (402) is fixedly installed on the side of the cover (302) close to the inner clamping plate (401).

6. A pipe-type electric heating module according to claim 5, characterized in that: A gasket (403) is installed between the inner card plate (401) and the outer card plate (402), and a heating tube (101) is movably installed between the inner card plate (401) and the outer card plate (402) near the gasket (403).

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