A heating device for an epoxy resin delivery pipe

Abstract

The utility model discloses a kind of heating devices for epoxy resin conveying pipeline, including conveying pipe body, conveying pipe body outer surface is provided with heating assembly, and heating assembly joint is provided with assembling component, by setting installation strip and opening installation through-hole, heating assembly is segmentedly disassembled by the aid of installation screw rod and fixed nut to facilitate subsequent staff to replace or repair electric heating sheet, by connecting sheet is clamped in dovetail groove, it can be connected to the limit of the two groups of outer side protective sheet adjacent, so that the integrity of multi-section heating assembly is better, by setting heat insulating sheet, the heat generated by electric heating sheet can be avoided to lose rapidly outward, by setting first heat preservation layer, the heat in heat insulating sheet can be avoided to lose rapidly outward, and the second heat preservation layer can be avoided to lose rapidly outward in first heat preservation layer, so as to reduce the heat loss of electric heating sheet, and good practicality.

Description

Technical Field

[0001] This utility model relates to the field of heating technology for conveying pipelines, specifically a heating device for epoxy resin conveying pipelines. Background Technology

[0002] During the transportation of epoxy resin through pipelines, a heating device is required to heat the pipelines to the required temperature. This prevents the epoxy resin in the pipelines from becoming too cold, which could lead to a sharp increase in viscosity or curing, thus avoiding blockage of the pipelines.

[0003] In the prior art, a heating device for epoxy resin conveying pipelines, with the publication number "CN208867408U", is provided by setting up a heating coil, a heating tube and an insulation tube. The heating coil is energized and heated, and eddy currents are generated in the heating tube for further heating. The insulation tube prevents heat loss, thereby improving the heating efficiency.

[0004] However, the above technical solutions and existing technologies have the following drawbacks: Although the heating device can heat the conveying pipeline, the insulation pipe is integrally set on the outer surface of the conveying pipeline. If the conveying pipeline is too long, the length of the insulation pipe will also increase, which will make it very inconvenient to disassemble, replace or repair the heating pipe later. In addition, the insulation pipe has a simple structure and cannot effectively prevent heat from losing out quickly, so its practicality is poor. Utility Model Content

[0005] The purpose of this invention is to provide a heating device for epoxy resin conveying pipelines, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A heating device for epoxy resin conveying pipelines includes a conveying pipe body. A heating component is disposed on the outer surface of the conveying pipe body, and the heating component is used to heat the conveying pipe body. An assembly component is disposed at the joint of the heating component, and the assembly component is used to assemble the heating component. The heating component includes an electric heating element, a heat insulation element, a first heat insulation layer, a second heat insulation layer, and an outer protective sheet. The outer surface of the conveying pipe body is wrapped with the electric heating element. A heat insulation element is bonded to the outer surface of the electric heating element. A first heat insulation layer is disposed on the outer surface of the heat insulation element. A second heat insulation layer is disposed on the outer surface of the first heat insulation layer. An outer protective sheet is bonded to the outer surface of the second heat insulation layer.

[0007] Preferably, the assembly includes a mounting strip, a fixing nut, a mounting through hole, and a mounting screw. The upper end of the outer protective plate is connected to the mounting strip, the mounting strip has a mounting through hole, and a mounting screw is inserted into the mounting through hole. The mounting screw is threaded with a fixing nut on its annular side.

[0008] Preferably, the outer protective sheet has dovetail grooves symmetrically formed on both the front and rear sides of its outer surface, and a connecting piece is fitted inside the dovetail groove, with the connecting piece and the dovetail groove having an interference fit.

[0009] Preferably, the mounting strip has a reinforcing plate on its side, and the reinforcing plate is a right-angled isosceles triangle. The mounting strip, the reinforcing plate, and the outer protective plate are an integral structure.

[0010] Preferably, the first insulation layer is made of aluminum silicate cotton, the second insulation layer is made of aerogel felt, and the heat insulation sheet is made of mineral wool.

[0011] Preferably, the outer protective sheet is made of hydrogenated nitrile rubber, and the power input terminal of the electric heating element is connected to an electrical connection wire.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up installation strips and opening installation through holes, it is convenient for staff to disassemble and assemble the heating component in sections using installation screws and fixing nuts, so that the electric heating element can be replaced or repaired later. By locking the connecting piece in the dovetail groove, the connection and limit of two adjacent sets of outer protective pieces can be made, preventing the connection between the two sets of outer protective pieces from easily loosening and separating, thus making the multi-section heating component more integrated. 2. By setting up heat insulation sheets, the heat generated by the electric heating element can be prevented from being lost out quickly. By setting up the first heat insulation layer, the heat in the heat insulation sheet can be prevented from being lost out quickly. The second heat insulation layer can prevent the heat in the first heat insulation layer from being lost out quickly, thereby reducing the heat loss of the electric heating element and making it practical. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the main structure of this utility model; Figure 2 is a structural diagram of the heating component and the assembly component in this utility model; Figure 3 is a right view of the heating component and the assembly component in this utility model; Figure 4 is a structural diagram of the heating component after it has been opened and flattened in this utility model.

[0014] In the diagram: 1. Conveying pipe; 2. Heating assembly; 21. Electric heating element; 22. Insulation sheet; 23. First insulation layer; 24. Second insulation layer; 25. Outer protective sheet; 26. Electrical connection wire; 3. Assembly assembly; 31. Mounting strip; 32. Fixing nut; 33. Mounting through hole; 34. Mounting screw; 35. Reinforcing plate; 36. Connecting plate; 37. Dovetail groove. Detailed Implementation

[0015] 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, those skilled in the art can obtain the following results without creative effort: Other embodiments are also within the scope of protection of this utility model.

[0016] Please refer to Figures 1-4. This utility model provides a technical solution: Example 1: A heating device for an epoxy resin conveying pipeline includes a conveying pipe body 1, which is capable of conveying liquid epoxy resin. A heating component 2 is provided on the outer surface of the conveying pipe body 1, and the heating component 2 is used to heat the conveying pipe body 1 to prevent the liquid epoxy resin in the conveying pipe body 1 from becoming too viscous or hardening and causing the pipeline to become blocked. An assembly component 3 is provided at the joint of the heating component 2, and the assembly component 3 is used to assemble and combine the heating component 2, so that the heating component 2 has the ability to be assembled in sections, so that maintenance personnel can perform segmented maintenance later.

[0017] Heating component 2 includes an electric heating element 21, a heat insulation sheet 22, a first heat insulation layer 23, a second heat insulation layer 24, and an outer protective sheet 25. The outer surface of the conveying tube 1 is wrapped with the electric heating element 21. The electric heating element 21 is a silicone heating element. The silicone rubber heating element 21 cannot heat the conveying tube 1 during operation, and it is soft so that it can be wrapped around the annular side of the conveying tube 1 for use. Since the internal detailed structure and working principle of the silicone heating element are relatively mature technologies in the prior art, they will not be described in detail here (for detailed parameters and internal structure, please refer to the prior art announcement number: CN212278485U, A Silicone Heating Element).

[0018] An insulating sheet 22 is adhered to the outer surface of the electric heating element 21. The insulating sheet 22 is made of mineral wool, which is lightweight and has good heat insulation properties, preventing the heat generated by the electric heating element 21 from rapidly dissipating. A first insulation layer 23 is provided on the outer surface of the insulating sheet 22. The first insulation layer 23 is made of aluminum silicate wool, which also has heat insulation properties, preventing the heat in the insulating sheet 22 from rapidly dissipating. A second insulation layer 24 is provided on the outer surface of the first insulation layer 23. The second insulation layer 24 is made of aerogel felt, which has a low thermal conductivity, preventing the heat in the first insulation layer 23 from rapidly dissipating. An outer protective sheet 25 is adhered to the outer surface of the second insulation layer 24. The outer protective sheet 25 is made of hydrogenated nitrile rubber. It has high tensile strength and wear resistance, preventing the heating component 2 from easily breaking during use. Since hydrogenated nitrile rubber is a relatively mature technology, its internal structure will not be described in detail here (for detailed parameters and internal structure, please refer to the prior art announcement number: CN104194108B, a high-strength, high-pressure resistant, hydrogen sulfide corrosion resistant hydrogenated nitrile rubber vulcanizate). The power input terminal of the electric heating element 21 is connected to an electrical connection wire 26. The input terminal of the electrical connection wire 26 is electrically connected to an external temperature controller so that the external temperature controller can control the electric heating element 21 to work according to the preset temperature.

[0019] Example 2: Based on Embodiment 1, this embodiment, by providing an installation strip 31 and opening an installation through hole 33, facilitates the segmented assembly and disassembly of the heating component 2 by workers using the installation screw 34 and fixing nut 32, so that workers can easily disassemble and assemble the electric heating element in sections later. 21. Replacement or repair can be performed by locking the connecting piece 36 in the dovetail groove 37, which can limit the connection of two adjacent sets of outer protective pieces and prevent the connection of two adjacent sets of outer protective pieces 25 from easily becoming loose and separating.

[0020] The assembly component 3 includes an installation strip 31, a fixing nut 32, an installation through hole 33, and an installation screw 34. The upper end of the outer protective plate is connected to the installation strip 31. The installation strip 31, the reinforcing plate 35, and the outer protective plate 25 are an integral structure. The installation strip 31 and the reinforcing plate 35 are made of the same material as the outer protective plate 25. The installation strip 31 has an installation through hole 33 inside, and the installation screw 34 is inserted inside the installation through hole 33. The fixing nut 32 is installed on the annular side thread of the installation screw 34. The installation strip 31 with the installation through hole 33 inside facilitates the connection and fixation of the installation screw 34 and the fixing nut 32, so that the two ends of the heating component 2 can be closed and fixed with the installation strip 31. The installation screw 34 and the fixing nut 32 are both made of stainless steel to improve their corrosion resistance and service life.

[0021] The outer protective sheet has symmetrical dovetail grooves 37 on both the front and back sides. A connecting piece 36 is fitted inside the dovetail groove 37. The connecting piece 36 can connect and limit the two adjacent sets of outer protective sheets 25 with the help of the dovetail groove 37, so as to prevent the two sets of outer protective sheets 25 from easily loosening and separating. The connecting piece 36 and the dovetail groove 37 are interference fit. The interference fit between the connecting piece 36 and the dovetail groove 37 prevents the connecting piece 36 from easily loosening and falling off during use. The mounting strip 31 has a reinforcing piece 35 on its side. The reinforcing piece 35 is a right-angled isosceles triangle. The right-angled isosceles triangle shape of the reinforcing piece 35 can further improve the connection stability between the mounting strip 31 and the outer protective sheet 25.

[0022] Working principle: After the outer protective layer is wrapped around the outer surface of the conveying pipe body 1, the installer only needs to insert the mounting screw 34 into the mounting through hole 33, and use an external wrench to thread the fixing nut 32 onto the annular side of the mounting screw 34. This connects and fixes the two sets of mounting strips 31, so that the heating component 2 can be installed and fixed on the outer surface of the conveying pipe body 1 with the help of the mounting strips 31. By repeating this process, multiple sets of heating components 2 can be assembled and installed in sections on the outer surface of the conveying pipe body 1. Then, using an external hammer, the connecting piece 36 is driven into the dovetail groove 37, which allows the connecting piece 36 to connect and limit the two adjacent sets of outer protective plates 25 through the dovetail groove 37, preventing the connection between the two adjacent sets of outer protective plates 25 from easily loosening and separating (refer to Figure 1). After using an external wrench to remove the mounting screw 34 and the fixing nut 32, the connecting piece 36 in the dovetail groove 37 can be pried up and removed with an external flathead screwdriver, allowing the corresponding set of heating components 2 to be disassembled, maintained, or replaced individually, making maintenance convenient. Later, staff only need to control the electric heating element 21 to operate at the preset temperature value via an external temperature controller to heat the delivery pipe 1. This prevents the liquid epoxy resin inside the delivery pipe 1 from becoming too viscous or hardening, which could lead to pipe blockage. During the heating process of the electric heating element 21 on the delivery pipe 1, the bonded heat insulation sheet 22 prevents the heat generated by the electric heating element 21 from rapidly escaping outwards. The first insulation layer 23 prevents the heat in the heat insulation sheet 22 from rapidly escaping outwards, while the second insulation layer 24 prevents the heat in the first insulation layer 23 from rapidly escaping outwards, thereby reducing the heat loss from the electric heating element. The heat loss of 21 is reduced, and the bonded outer protective sheet 25 can also prevent the second insulation layer 24 from easily breaking and wearing during use, thereby ensuring the service life of the heating component 2.

[0023] It should be noted that the circuits, electronic components, and driving devices involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve improvements to the software and methods. At the same time, the power connection methods of each electrical device are existing mature technologies, which are well known to those skilled in the art, and will not be elaborated upon here.

[0024] 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 heating device for an epoxy resin conveying pipeline, comprising a conveying pipe body (1), characterized in that: The outer surface of the conveying pipe (1) is provided with a heating component (2), and the heating component (2) is used to heat the conveying pipe (1). The joint of the heating component (2) is provided with an assembly component (3), and the assembly component (3) is used to assemble the heating component (2). The heating assembly (2) includes an electric heating element (21), a heat insulation sheet (22), a first heat insulation layer (23), a second heat insulation layer (24), and an outer protective sheet (25). The outer surface of the conveying pipe (1) is wrapped with an electric heating element (21). The outer surface of the electric heating element (21) is bonded with a heat insulation sheet (22). The outer surface of the heat insulation sheet (22) is provided with a first heat insulation layer (23). The outer surface of the first heat insulation layer (23) is provided with a second heat insulation layer (24). The outer surface of the second heat insulation layer (24) is bonded with an outer protective sheet. The assembly component (3) includes an installation strip (31), a fixing nut (32), an installation through hole (33), and an installation screw (34). The upper end of the outer protective plate is connected to the installation strip (31). The installation strip (31) has an installation through hole (33) inside. The installation screw (34) is inserted inside the installation through hole (33). The fixing nut (32) is installed on the annular side thread of the installation screw (34).

2. The heating device for epoxy resin conveying pipeline according to claim 1, characterized in that: The outer protective plate has dovetail grooves (37) symmetrically opened on the front and rear sides of its outer surface. A connecting piece (36) is installed inside the dovetail groove (37), and the connecting piece (36) and the dovetail groove (37) are interference fit.

3. The heating device for epoxy resin conveying pipeline according to claim 1, characterized in that: The mounting strip (31) is provided with a reinforcing plate (35) on its side, and the reinforcing plate (35) is a right-angled isosceles triangle. The mounting strip (31), the reinforcing plate (35) and the outer protective plate (25) are an integral structure.

4. A heating device for an epoxy resin conveying pipeline according to claim 1, characterized in that: The first insulation layer (23) is made of aluminum silicate cotton, the second insulation layer (24) is made of aerogel felt, and the heat insulation sheet (22) is made of mineral wool.

5. A heating device for an epoxy resin conveying pipeline according to claim 1, characterized in that: The outer protective sheet (25) is made of hydrogenated nitrile rubber, and the power input terminal of the electric heating element (21) is connected to an electrical connection wire (26).

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