Heating furnace heater

Abstract

The utility model relates to a heater, in particular to a heating furnace heater, which comprises a heating mechanism, the heating mechanism comprises a porcelain tube, a heating wire and an insulating tube, the porcelain tube penetrates into a furnace body, the heating wire is wound on the periphery of the porcelain tube, a first end of the insulating tube penetrates into the porcelain tube, and a second end of the insulating tube extends out of the furnace body. One end, far away from the porcelain tube, of the heating wire penetrates into the insulating tube and extends out of the furnace body; the fixing mechanism comprises a sleeve, an insulation device and a baffle, the sleeve is arranged at the second end of the insulation pipe in a sleeving mode, the insulation device is arranged on the side, facing the through hole, of the porcelain pipe, the insulation device is arranged on the sleeve in a sleeving mode, the baffle is arranged outside the furnace body and abuts against the insulation device, and the edge position of the baffle and the furnace wall are fixed; wherein the insulation device is made of a flexible material. By means of the structure, the insulation device made of flexible materials can absorb expansion of the porcelain tube and deform in the heating process, and better sealing performance is achieved.

Description

Technical Field

[0001] The utility model relates to a heater, in particular to a heating furnace heater. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] Heating furnaces are typically heated by heaters installed within the furnace body. Existing heaters often use heating wires to heat the furnace body. This works by passing an electric current through the heating wire, which has electrical resistance. This thermal resistance effect allows the wire to release a large amount of heat energy, which evaporates into the furnace body. This process, which requires current, places high demands on insulation. The heating wire is typically wrapped around a porcelain tube for positioning. However, the porcelain tube can expand during heating, causing it to crack. Structural damage can cause the heating wire to short-circuit, rendering the heating ineffective. Even slight expansion can compromise the heater's seal, severely reducing heating efficiency.

[0004] There is currently no furnace heater that can solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a heating furnace heater which can absorb the expansion and deformation of the porcelain tube during heating through the intervention of an insulating device made of a flexible material and has better sealing performance.

[0006] In order to achieve the above-mentioned object, the present invention discloses the following heating furnace heater, wherein the furnace body is enclosed by a furnace wall, and the furnace wall is provided with a through hole; the heating furnace heater comprises:

[0007] a heating mechanism, the heating mechanism comprising a porcelain tube, a heating wire, and an insulating tube, the porcelain tube passing through the interior of the furnace body, the heating wire being wound around the periphery of the porcelain tube, the insulating tube having a first end and a second end oppositely disposed, the first end of the insulating tube being passed through the porcelain tube, the second end of the insulating tube being passed through the through hole and extending outside the furnace body, so that the end of the heating wire away from the porcelain tube passes through the insulating tube and extends outside the furnace body;

[0008] A fixing mechanism, the fixing mechanism comprising a sleeve, an insulating device, and a baffle, the sleeve being sleeved on the second end of the insulating tube, the insulating device being arranged on the side of the porcelain tube facing the through hole, and sleeved on the sleeve, the baffle being arranged outside the furnace body, the baffle being in contact with the insulating device, and the edge of the baffle being fixed to the furnace wall;

[0009] The insulating device is made of a flexible material and is arranged adjacent to the porcelain tube. When the porcelain tube expands due to heat, the insulating device undergoes corresponding deformation.

[0010] Furthermore, the insulating device is made of ceramic fiber material.

[0011] Furthermore, the sleeve is made of Teflon material.

[0012] Furthermore, the heating wire is coiled in a serpentine shape around the periphery of the porcelain tube.

[0013] Furthermore, the heating furnace heater further comprises a coating material, and the coating material coats the periphery of one end of the porcelain tube facing the through hole.

[0014] Furthermore, the heating wire passes through between the coating material and the porcelain tube and is connected to the first end of the insulating tube.

[0015] Furthermore, the coating material is configured as thermal insulation cotton.

[0016] Furthermore, at least a portion of the insulating device extends out of the furnace body along the direction of the baffle.

[0017] By means of the above technical solution, the beneficial effects of the present invention are as follows:

[0018] The heating furnace heater of the present invention can use an insulating device arranged adjacent to one side of the porcelain tube, so that during the heating process after the heating wire is energized, even if the porcelain tube is deformed by heat, the insulating device as a flexible material can withstand the extrusion of the porcelain tube and undergo corresponding deformation, so that the stress that may be caused by the thermal expansion of the porcelain tube is resolved, avoiding structural damage. At the same time, the insulating device itself can further enhance the sealing performance of the heating furnace heater, which helps to improve the heating efficiency.

[0019] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are for reference and illustration only and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1It is a cross-sectional schematic diagram of a heating furnace heater provided in an embodiment of this specification;

[0022] Figure 2 This is a partial schematic diagram of a heating furnace heater provided in an embodiment of this specification;

[0023] In the figure: 100, furnace wall; 1, heating mechanism; 11, porcelain tube; 12, heating wire; 13, insulating tube; 2, fixing mechanism; 21, sleeve; 22, insulating device; 23, baffle; 3, coating material. DETAILED DESCRIPTION

[0024] To help those skilled in the art better understand the technical solutions in this specification, the following will provide a clear and complete description of the technical solutions in the embodiments of this specification, in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of them. All other embodiments derived by those skilled in the art based on the embodiments in this specification without creative effort shall fall within the scope of protection of this specification.

[0025] The following is an explanation of the implementation of the present invention through specific specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following implementation methods will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0026] It should be understood that although terms such as "first," "second," and "third" may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. In addition, the term "or" as used herein may include any one or more combinations of the associated listed items, as appropriate.

[0027] See Figure 1-2 , is a heating furnace heater of this embodiment, wherein the furnace body is enclosed by a furnace wall 100, and the furnace wall 100 is provided with a through hole; wherein the heating furnace heater includes:

[0028] The heating mechanism 1 includes a porcelain tube 11, a heating wire 12, and an insulating tube 13. The porcelain tube 1 passes through the interior of the furnace body, the heating wire 12 is wound around the periphery of the porcelain tube 11, and the insulating tube 13 has a first end and a second end disposed opposite each other. The first end of the insulating tube 13 passes through the porcelain tube 11, and the second end of the insulating tube 13 passes through the through hole and extends outside the furnace body, so that the end of the heating wire 12 away from the porcelain tube 11 passes through the insulating tube 13 and extends outside the furnace body.

[0029] The fixing mechanism 2 includes a sleeve 21, an insulating device 22, and a baffle 23. The sleeve 21 is sleeved on the second end of the insulating tube 13. The insulating device 22 is provided on the side of the porcelain tube 11 facing the through hole and sleeved on the sleeve 21. The baffle 23 is provided outside the furnace body and abuts against the insulating device 22. The edge of the baffle 23 is fixed to the furnace wall 100.

[0030] The insulating device 22 is made of a flexible material and is disposed adjacent to the porcelain tube 11 . When the porcelain tube 11 expands due to heat, the insulating device 22 undergoes corresponding deformation.

[0031] Regarding the above structure, during installation, the operator first needs to install the porcelain tube 11, which matches the internal dimensions of the furnace body and is wrapped with the heating wire 12, into the furnace body through the through hole. At the same time, the first end of the insulating tube 13 is inserted into the porcelain tube 11, and the other end is extended to the outside of the furnace wall 100. The end of the heating wire 12 is also introduced into the insulating tube 13 to facilitate connection with the external power supply. Then, the operator will fit the sleeve 21 around at least part of the outer periphery of the insulating tube 13, and install the insulating device 22 outside the sleeve 21. Finally, the baffle 23 is fixed to the furnace wall 100 from the outside to the inside. The baffle 23 includes holes for inserting the sleeve 21 and the insulating device 22, so that the sleeve 21, the insulating device 22 and other structures are also compressed and fixed.

[0032] During use, the operator starts the external power supply, which is connected to the end of the heating wire 12 in the insulating tube 13 through a lead. The heating wire heats up and begins to generate heat in the furnace body. During the heat generation process, the porcelain tube 11 is exposed to high temperature and deforms. At this time, since the insulating device 22 on one side of the porcelain tube 11 is set to a flexible material with a certain deformability, the deformation of the porcelain tube 11 is absorbed by the insulating device 22, releasing the stress of the porcelain tube 11 and avoiding structural damage that may be caused by the expansion and deformation of the porcelain tube 11. At the same time, since the insulating device 22 itself is set to a flexible material, the baffle 23 can be pressed against the insulating device 22, and during the heating process, the insulating device 22 can be pressed down more tightly by the deformed porcelain tube 11, so that the through hole of the furnace wall 100 is sealed with high strength by the insulating device 22, avoiding possible heat loss. Specifically, in this embodiment, the insulating device 22 is configured to be made of ceramic fiber material, which is mainly composed of aluminum oxide (Al2O3) and silicon dioxide (SiO2). The ceramic fiber itself is soft, light, and easy to process. It can better fit the baffle 23, has better sealing effect and insulation, and is more suitable for the scenario application of this embodiment.

[0033] Furthermore, a stronger sleeve 21 is provided inside the insulating device 22, and the sleeve 21 is made of Teflon. Even if the insulating device 22 is partially broken or deformed, the Teflon sleeve 21 provides good support and insulation for the heating wire 12 with the support of the sleeve 21, and the heating wire 12 cannot be connected to the furnace body, thereby avoiding heating failure.

[0034] Furthermore, the heating wire 12 is coiled around the outer periphery of the porcelain tube in a serpentine shape, so that the heating wire 12 can provide heat to the interior of the furnace body more evenly.

[0035] Furthermore, the heating furnace heater also includes a coating material 3, which coats the outer periphery of the end of the porcelain tube 11 facing the through hole. At the same time, the heating wire 12 passes between the coating material 3 and the porcelain tube 11 and is connected to the first end of the insulating tube 22. Specifically, in the above results, the end of the heating wire 12 is transformed from a serpentine coil to a straight line, and the straight heating wire is clamped between the coating material 3 and the porcelain tube 11. The purpose is to avoid the heat release of the heating wire 12 near the furnace wall 100, and to allow the main heat to be dissipated in a relatively central position inside the furnace body. Through the above structure, due to the heat preservation effect of the coating material 3, the heat release of the heating wire 12 to the central position inside the furnace body is more concentrated, and has a higher heat release efficiency. Specifically, the coating material 3 in this embodiment is selected as thermal insulation cotton, which is cheap, easy to obtain and easy to process. It can be flexibly applied to porcelain tubes 11 of different diameters and only requires simple cutting and attachment during the wrapping process. At the same time, since the linear heating wire 12 itself needs to occupy a certain space, during processing, it is only necessary to cut out the corresponding long strip at the position of the linear heating wire 12 to avoid damaging the structure of the porcelain tube 11 itself which is difficult to process.

[0036] In this embodiment, at least part of the insulating device 22 extends out of the furnace body along the direction of the baffle 23. Specifically, the insulating device 22 has an annular boss at one end facing the outside of the furnace body, and the hole of the baffle 23 abuts against the outer wall of the boss of the insulating device 22. Therefore, one side of the existing baffle 23 can be made to fit and abut against each other with the insulating device 22, and the inner hole wall of the hole of the baffle 23 also fits and abuts against the insulating device 22, so that the area of ​​mutual fit and abutment between the two becomes larger, which obviously enhances the insulation of the internal and external temperatures of the baffle 23 by the insulating device 22, making it more difficult for the hot air inside the furnace body to leak out through the position of the baffle 23, and indirectly ensuring the heat preservation and heating capabilities of the heating furnace heater in this embodiment.

[0037] Of course, the heating mechanism 1 and the fixing mechanism 2 described above in this embodiment are only one side of the heating furnace heater. In fact, in conventional furnace heating, the heating furnace heater is set on the furnace walls 100 on both sides opposite to each other throughout the entire furnace body. That is to say, in this embodiment, there is also a furnace wall 100 on the other side, and another set of heating mechanisms 1 and fixing mechanisms 2 arranged opposite to the heating mechanism 1 and fixing mechanism 2 described above are set at the furnace wall 100, wherein the two sets of heating mechanisms 1 share the same set of heating wires 12 and porcelain tubes 11, and the overall structure is mirrored between the two furnace walls 100.

[0038] Specifically, in this embodiment, see Figure 2The baffle 23 and the furnace wall 100 can be fixed by fasteners, wherein the baffle 23 has a plurality of holes for fasteners to pass through, and the furnace wall 100 also includes a plurality of holes for fasteners to pass through and fix. The plurality of fasteners are respectively passed through the holes of the baffle 23 and the holes on the furnace wall 100 from the outside of the furnace body to the inside, and realize the mutual fixation between the baffle 23 and the furnace wall 100.

[0039] The contents disclosed above are only preferred feasible embodiments of the present invention and do not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the contents of the description and drawings of the present invention are included in the scope of the patent application of the present invention.

[0040] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0041] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and variations to the present application without departing from the spirit of the present application. It is intended that the appended embodiments include these modifications and variations without departing from the present application.

Claims

1. A heating furnace heater for heating a furnace body, wherein: The furnace body is enclosed by a furnace wall, and a through hole is provided on the furnace wall; it is characterized in that the heating furnace heater includes: a heating mechanism, the heating mechanism comprising a porcelain tube, a heating wire, and an insulating tube, the porcelain tube passing through the interior of the furnace body, the heating wire being wound around the periphery of the porcelain tube, the insulating tube having a first end and a second end oppositely disposed, the first end of the insulating tube being passed through the porcelain tube, the second end of the insulating tube being passed through the through hole and extending outside the furnace body, so that the end of the heating wire away from the porcelain tube passes through the insulating tube and extends outside the furnace body; A fixing mechanism, the fixing mechanism comprising a sleeve, an insulating device, and a baffle, the sleeve being sleeved on the second end of the insulating tube, the insulating device being arranged on the side of the porcelain tube facing the through hole, and sleeved on the sleeve, the baffle being arranged outside the furnace body, the baffle being in contact with the insulating device, and the edge of the baffle being fixed to the furnace wall; The insulating device is made of a flexible material and is arranged adjacent to the porcelain tube. When the porcelain tube expands due to heat, the insulating device undergoes corresponding deformation.

2. The heating furnace heater according to claim 1, characterized in that: The insulating device is made of ceramic fiber material.

3. The heating furnace heater according to claim 1, characterized in that: The sleeve is made of Teflon material.

4. The heating furnace heater according to claim 1, characterized in that: The heating wire is coiled around the periphery of the porcelain tube in a serpentine shape.

5. The heating furnace heater according to claim 1, characterized in that: The heating furnace heater further includes a covering material, which covers the outer periphery of one end of the porcelain tube facing the through hole.

6. The heating furnace heater according to claim 5, characterized in that: The heating wire passes through between the covering material and the porcelain tube and is connected to the first end of the insulating tube.

7. The heating furnace heater according to claim 5, characterized in that: The coating material is configured as thermal insulation cotton.

8. The heating furnace heater according to claim 1, characterized in that: At least a portion of the insulating device extends out of the furnace body along the direction of the baffle.

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