Heating module for radiation heating high-temperature furnace

Abstract

The utility model relates to the technical field of heating furnace components, in particular to a heating module for a radiation heating high-temperature furnace, which comprises a mounting layer, two binding posts symmetrically mounted on the mounting layer and a resistance wire mounted between the lower ends of the two binding posts. A directional energy locking mechanism used for gathering resistance wire heat radiation and reducing heat dissipation and heat loss is arranged between the installation layer and the lower ends and the outer sides of the two binding posts. According to the utility model, an original heating module is scientifically and reasonably improved, and the heat insulation layer, the energy gathering layer, the outer cover and the inner cover are arranged between the lower ends and the outer sides of the mounting layer, the binding posts and the resistance wires, so that heat radiated from the periphery can be downwards gathered into the furnace chamber in a directional manner, and the heat is further gathered and guided; and an efficient, stable and controllable radiation temperature increasing process is performed on the lower space of the heating furnace, so that the heat loss in the working process of the heating module is reduced, and the heating efficiency and the working stability of the heating module are improved.

Description

Technical Field

[0001] This utility model relates to the field of heating furnace component technology, and in particular to a heating module for a radiant heating high-temperature furnace. Background Technology

[0002] Currently, there are various high-temperature furnace heating technologies, such as induction heating, graphite heating, plasma heating, and flame heating. Among them, graphite heating has advantages such as high temperature, good purity, simple equipment structure, low environmental requirements, and no harmonic effects. Therefore, it is widely used in manufacturing industries such as optical fiber and polysilicon.

[0003] However, existing graphite heating furnaces also have drawbacks in their design, such as low resistance distribution, easy burn-out, uneven heating, and difficulty in controlling resistance. In particular, they still cannot meet the long-term heating requirements in high-oxygen-pressure environments. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned defects in the traditional heating components for graphite heating furnaces, and to propose a heating module for a radiation heating high-temperature furnace.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heating module for a radiant heating high-temperature furnace includes an installation layer, two terminals symmetrically installed on the installation layer, and a resistance wire installed between the lower ends of the two terminals. A directional energy-locking mechanism is provided between the lower ends and outer sides of the installation layer and the two terminals to concentrate the heat radiation of the resistance wire and reduce heat dissipation and heat loss.

[0007] As a further description of the above technical solution:

[0008] The directional energy-locking mechanism includes a heat insulation layer installed between two terminals and located below the mounting layer, an energy-concentrating layer installed between the two terminals and located below the heat insulation layer, and an inner cover and an outer cover installed between the mounting layer, the heat insulation layer, and the outside of the energy-concentrating layer via an inner locking part.

[0009] As a further description of the above technical solution:

[0010] The inner locking part includes a sliding groove type fixing plate that can be detachably installed at the four corners of the upper end of the heat insulation layer and extends outward through the inner cover and the outer cover, and a limiting insertion hole that is opened on the inner cover and the outer cover and matches the sliding groove type fixing plate.

[0011] As a further description of the above technical solution:

[0012] Two parallel support rods are installed at the lower end of the energy-concentrating layer and are in contact with the lower end face of the resistance wire.

[0013] As a further description of the above technical solution:

[0014] A temperature measuring module is installed at the upper middle part of the mounting layer, and a thermocouple is installed at the lower middle part of the temperature measuring module, penetrating downward through the mounting layer, the insulation layer, and the energy-concentrating layer. A ceramic hollow tube is sleeved on the outside of the thermocouple.

[0015] As a further description of the above technical solution:

[0016] The lower end of the terminal block is fitted with an upper platinum plate that abuts against the upper surface of the resistance wire, and the lower end of the terminal block is fitted with a lower platinum plate that abuts against the lower surface of the resistance wire.

[0017] As a further description of the above technical solution:

[0018] The resistance wire is made of SiC material and has a wavy shape.

[0019] As a further description of the above technical solution:

[0020] The upper end of the mounting layer is equipped with three suspension bolts arranged in an equilateral triangle.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0022] In this invention, the original heating module has been scientifically and rationally improved. A heat insulation layer, an energy-concentrating layer, an outer cover, and an inner cover are installed between the mounting layer, the terminals, and the lower and outer sides of the resistance wire. The resistance wire is made of SiC material and has a wavy structure. First, current is conducted through the upper and lower platinum plates on the terminals to the resistance wire. Under the action of a large current, the resistance wire heats up rapidly while radiating heat to the surrounding space. Simultaneously, the energy-concentrating layer above the resistance wire reflects the heat energy from the upper space back to the lower space, increasing the uniformity and stability of heat generation. Second… The resistance wire is surrounded by an inner cover, which effectively reduces heat dissipation and reflects heat energy from all sides towards the center, reducing the temperature gradient difference between the inside and outside of the heating wire. Finally, the inner cover is enclosed within the outer cover, which is slightly longer than the inner cover. This further reduces heat dissipation and forms a stepped structure, concentrating the internal heat radiation direction. It can direct the heat radiating from all sides downwards into the furnace cavity, further concentrating and guiding the heat. This creates an efficient, stable, and controllable radiative heating process in the lower space of the heating furnace, thereby reducing heat loss during the operation of the heating module and improving the heating efficiency and operational stability of the heating components. Attached Figure Description

[0023] Figure 1 This is a simplified structural diagram of a heating module for a radiant heating high-temperature furnace proposed in this utility model;

[0024] Figure 2 This is a bottom view of the present invention;

[0025] Figure 3 This is a partial three-dimensional disassembly diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the device after the resistance wire is disassembled in this utility model.

[0027] Legend:

[0028] 1. Mounting layer; 2. Insulation layer; 201. Slide-type fixing lever; 3. Energy-concentrating layer; 4. Terminal block; 401. Upper platinum sheet; 402. Lower platinum sheet; 5. Resistance wire; 6. Temperature measuring module; 601. Thermocouple; 602. Ceramic hollow tube; 7. Outer cover; 8. Inner cover; 9. Support rod; 10. Suspension bolt; 11. Limiting socket. Detailed Implementation

[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a heating module for a radiant heating high-temperature furnace, including an installation layer 1, two terminals 4 symmetrically installed on the installation layer 1, and a resistance wire 5 installed between the lower ends of the two terminals 4. A directional energy-locking mechanism for concentrating the heat radiation of the resistance wire 5 and reducing heat dissipation and heat loss is provided between the lower ends and outer sides of the installation layer 1 and the two terminals 4.

[0031] Specifically, such as Figure 1-4 As shown, the directional energy-locking mechanism includes a heat insulation layer 2 installed between two terminals 4 and located below the mounting layer 1, an energy-concentrating layer 3 installed between the two terminals 4 and located below the heat insulation layer 2, and an inner cover 8 and an outer cover 7 installed between the mounting layer 1, the heat insulation layer 2, and the energy-concentrating layer 3 via an inner locking part.

[0032] The inner locking part includes a sliding fixing plate 201 that is detachably installed at the four corners of the upper end of the heat insulation layer 2 and extends outward through the inner cover 8 and the outer cover 7, and a limiting insertion hole 11 that is opened on the inner cover 8 and the outer cover 7 and matches the sliding fixing plate 201. The sliding fixing plate 201 can slide and adjust laterally on the heat insulation layer 2 to ensure that the outer end of the sliding fixing plate 201 can be stably inserted into the limiting insertion hole 11 of the inner cover 8 and the outer cover 7. After the sliding fixing plate 201 is adjusted, it can be fixed to the heat insulation layer 2 by fasteners through the reserved holes on the mounting layer 1 to prevent the sliding fixing plate 201 from moving under force and to ensure the stability of the inner cover 8 and the outer cover 7 after installation.

[0033] Among them, two parallel supporting rods 9 are installed at the lower end of the energy-concentrating layer 3 and are in contact with the lower end surface of the resistance wire 5. This can further fix the resistance wire 5 after installation to prevent it from falling and causing it to shift or sway.

[0034] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, a temperature measuring module 6 is installed in the upper middle part of the mounting layer 1, and a thermocouple 601 is installed in the lower middle part of the temperature measuring module 6, penetrating downward through the mounting layer 1, the heat insulation layer 2, and the energy-concentrating layer 3. A ceramic hollow tube 602 is sleeved on the outside of the thermocouple 601. This structure, while protecting the thermocouple 601, can evenly transfer the heat from the heating of the resistance wire 5 to the thermocouple 601, effectively improving the stability and accuracy of the temperature measurement of the resistance wire 5.

[0035] Specifically, such as Figure 2 , Figure 3 and Figure 4 As shown, an upper platinum plate 401 is installed at the lower end of the terminal 4, which abuts against the upper end face of the resistance wire 5, and a lower platinum plate 402 is installed at the lower end of the terminal 4, which abuts against the lower end face of the resistance wire 5. The arrangement of the upper platinum plate 401 and the lower platinum plate 402 can, on the one hand, limit the resistance wire 5 to the lower end of the terminal 4, and on the other hand, can efficiently and stably conduct the current of the terminal 4 to the resistance wire 5.

[0036] The resistance wire 5 is made of SiC material. Compared with the original graphite resistance wire, it solves the problem that the lifespan of traditional graphite resistance wire is greatly reduced due to the reaction with oxygen. The resistance wire 5 has a wavy structure, which makes the structure of the resistance wire 5 stronger and the heating uniformity better, while also reducing the resistance value of the resistance wire 5.

[0037] Specifically, such as Figure 1 , Figure 3 and Figure 4As shown, three suspension bolts 10 arranged in an equilateral triangle are installed at the upper end of the mounting layer 1, which facilitates the overall installation of the heating module above the furnace cavity of the radiant heating high-temperature furnace by threading them together.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heating module for a radiant heating high-temperature furnace, comprising a mounting layer (1), two terminal posts (4) symmetrically mounted on the mounting layer (1), and a resistance wire (5) mounted between the lower ends of the two terminal posts (4), characterized in that, The mounting layer (1) and the lower end of the two terminal posts (4) and the outer side are provided with a directional energy locking mechanism for gathering the thermal radiation of the resistance wire (5), reducing heat dissipation and heat loss.

2. The heating module for a radiant heating high-temperature furnace according to claim 1, characterized in that, The directional energy locking mechanism comprises a heat insulation layer (2) mounted between the two terminal posts (4) below the mounting layer (1), an energy gathering layer (3) mounted between the two terminal posts (4) below the heat insulation layer (2), and an inner cover (8) and an outer cover (7) mounted between the outside of the mounting layer (1), the heat insulation layer (2) and the energy gathering layer (3) through an inner locking part.

3. The heating module for a radiant heating high-temperature furnace according to claim 2, characterized in that, The inner locking part comprises a sliding groove type fixing puller (201) detachably mounted at the four corners of the upper end of the heat insulation layer (2) and outwardly penetrating the inner cover (8) and the outer cover (7), and a limiting jack (11) opened on the inner cover (8) and the outer cover (7) and matched with the sliding groove type fixing puller (201).

4. The heating module for a radiant heating high-temperature furnace according to claim 2, characterized in that, The lower end of the energy gathering layer (3) is provided with two support hangers (9) distributed in parallel and matched with the lower end surface of the resistance wire (5).

5. The heating module of claim 1, wherein the heating module is used in a radiant heating high-temperature furnace. The upper end of the mounting layer (1) is provided with a temperature measuring module (6), the lower end of the temperature measuring module (6) is provided with a thermocouple (601) penetrating downwardly through the mounting layer (1), the heat insulation layer (2) and the energy gathering layer (3), and the outer part of the thermocouple (601) is provided with a ceramic air pipe (602).

6. The heating module of claim 1, wherein the heating module is used in a radiant heating high-temperature furnace. The lower end of the terminal post (4) is provided with an upper platinum sheet (401) abutting against the upper end surface of the resistance wire (5), and the lower end of the terminal post (4) is provided with a lower platinum sheet (402) abutting against the lower end surface of the resistance wire (5).

7. The heating module of claim 1, wherein the heating module is used in a radiant heating high-temperature furnace. The resistance wire (5) is made of SiC material, and the shape of the resistance wire (5) is a wave-shaped structure.

8. The heating module of claim 1, wherein the heating module is used in a radiant heating high-temperature furnace. The upper end of the mounting layer (1) is provided with three suspension bolts (10) distributed in an equilateral triangle.

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