Heating sleeve structure with thermal amplification effect

Abstract

The utility model provides a heating sleeve structure with a heat amplification effect, which comprises a silicon carbide heat-resistant tube, a quartz heating tube and a ceramic packaging plug, the silicon carbide heat-resistant tube is sleeved outside the quartz heating tube, and a heat storage gap is arranged between the inner wall of the silicon carbide heat-resistant tube and the quartz heating tube. The two ends of the silicon carbide heat resisting pipe are fixed and sealed through ceramic packaging plugs, the two ends of the quartz heating pipe are fixed through fixing structures in the ceramic packaging plugs, and the heat storage gap is filled with heat storage gas. According to the heating sleeve structure with the heat amplification effect, the silicon carbide heat resistance pipe is arranged outside the quartz heating pipe, so that heat emitted from the interior of the quartz heating pipe penetrates through the quartz heating pipe and then is uniformly radiated to the silicon carbide heat resistance pipe through the heat storage gaps, and the silicon carbide heat resistance pipe stores the heat.

Description

Technical Field

[0001] This utility model relates to the field of heating tube technology, and in particular to a heating sleeve structure with thermal amplification effect. Background Technology

[0002] Existing heating elements use resistance wires for heating, which are then placed inside a quartz tube to prevent oxidation. Because quartz is hard and brittle, it has poor resistance to impact and collisions, so a protective mesh structure is usually added to the outside of the quartz heating element during use. Furthermore, since quartz processing requires vacuuming, the ends of the quartz tube are heat-fused and sealed with conductive sheets (or wires), resulting in flat ends. Without polishing, these flat quartz tubes exhibit irregular shapes with varying sizes, thicknesses, and widths due to individual differences. This makes installation difficult, and even after installation, the irregular shape easily leads to breakage. The same problem exists in the repair and replacement process after the heating element is damaged. This not only increases the cost of using the heating element but also affects its lifespan.

[0003] Furthermore, quartz tubes have excellent thermal conductivity, allowing heat to be easily dissipated through the tube walls. This is a requirement for most heating elements on the market. However, this also presents a problem: because heat is quickly carried away, the temperature inside the quartz tube is significantly higher than the outside. To achieve higher heating temperatures, the power of the resistance wire inside the quartz tube needs to be increased, which reduces the lifespan of the resistance wire and increases energy consumption. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is to provide a heating sleeve structure with thermal amplification effect, thereby solving the problem of high energy consumption and short lifespan caused by the large temperature difference between the inside and outside of the existing quartz heating tube.

[0005] To solve the above-mentioned technical problems, this utility model provides a heating sleeve structure with thermal amplification effect, including a silicon carbide heat-resistant tube, a quartz heating tube, and a ceramic encapsulation plug. The silicon carbide heat-resistant tube is sleeved on the outside of the quartz heating tube, and there is a heat storage gap between the inner wall of the silicon carbide heat-resistant tube and the quartz heating tube. The two ends of the silicon carbide heat-resistant tube are fixed and sealed by the ceramic encapsulation plug, while the two ends of the quartz heating tube are fixed by a fixing structure inside the ceramic encapsulation plug. The heat storage gap is filled with heat storage gas.

[0006] The thermal conductivity λ1 of the quartz heating tube is higher than that of the silicon carbide heat-resistant tube.

[0007] The wall thickness of the quartz heating tube is less than that of the silicon carbide heat-resistant tube.

[0008] Furthermore, the wall thickness d2 of the silicon carbide heat-insulating tube is at least four times the wall thickness d1 of the quartz heating tube, and satisfies d2 / λ2>5d1 / λ1, so that after the heat passes through the quartz heating tube, it is stored in the tube wall of the silicon carbide heat-insulating tube through the heat storage gap.

[0009] The quartz heating tube contains a resistance wire, and the two ends of the resistance wire pass through a ceramic encapsulation plug via wires to connect to an external circuit.

[0010] The fixing structure inside the ceramic encapsulation plug includes two parallel clamping blocks for clamping the end of the quartz heating tube.

[0011] The ceramic encapsulation plug between the two clamping blocks has a lead-out hole, through which the wire is led out, and the wire and the lead-out hole are sealed and encapsulated.

[0012] The ceramic encapsulation plug and the silicon carbide heat-insulating tube are sealed together by heat-resistant sealant.

[0013] The size of the heat storage gap is greater than the wall thickness of the quartz heating tube, and the heat storage gas is nitrogen or air.

[0014] This invention provides a heating sleeve structure with thermal amplification effect. A silicon carbide heat-resistant tube is installed outside the quartz heating tube. This allows heat emitted from inside the quartz heating tube to pass through the quartz heating tube and then be evenly radiated to the silicon carbide heat-resistant tube through a heat storage gap, where the heat is stored. Unlike conventional quartz heating tubes that rapidly dissipate heat, causing a rapid drop in temperature (i.e., operating temperature), this invention, by installing a silicon carbide heat-resistant tube outside the quartz heating tube, can store heat, thereby increasing the temperature of the silicon carbide heat-resistant tube. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the heating sleeve structure with thermal amplification effect described in an embodiment of the present invention.

[0016] In the picture:

[0017] 1-Silicon carbide heat insulation tube; 2-Quartz heating tube; 3-Ceramic encapsulated plug; 31-Clamping block; 33-Wire; 4-Heat storage gap. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] like Figure 1As shown, this utility model provides a heating sleeve structure with thermal amplification effect, including a silicon carbide heat-resistant tube 1, a quartz heating tube 2, and a ceramic encapsulation plug 3. The silicon carbide heat-resistant tube 1 is a circular tube structure, and the quartz heating tube 2 is a long and straight quartz tube structure. The quartz heating tube 2 has a heating resistor inside and is filled with inert gas. The two ends of the quartz heating tube 2 are connected to a power source, so that the internal heating resistor is energized and heated. The heat enters the heat storage gap 4 through the tube wall of the quartz heating tube and is then conducted to the silicon carbide heat-resistant tube 1. The silicon carbide heat-resistant tube 1 is sleeved on the outside of the quartz heating tube 2, and there is a heat storage gap 4 between the inner wall of the silicon carbide heat-resistant tube 1 and the quartz heating tube 2. The two ends of the silicon carbide heat-resistant tube 1 are fixed and sealed by the ceramic encapsulation plug 3, while the two ends of the quartz heating tube 2 are fixed by the fixing structure inside the ceramic encapsulation plug 3. The heat storage gap is filled with heat storage gas. The ceramic encapsulation plug 3, made of ceramic material, possesses excellent insulation and hardness, effectively securing both ends of the quartz heating tube 2 and preventing stress-induced damage. The silicon carbide heat-resistant tube 1, located outside the quartz heating tube 2, protects it. Since its thermal conductivity is lower than that of the quartz heating tube 2, it effectively "intercepts" the heat conducted from the quartz heating tube 2, allowing heat to accumulate within its wall. This increases the temperature of the silicon carbide heat-resistant tube 2 and reduces the temperature difference between the quartz heating tube 2 and its internal heating resistor. By incorporating the silicon carbide heat-resistant tube 1 into the traditional quartz tube structure, the operating temperature of the silicon carbide heat-resistant tube 1 is higher and its surface area is larger than that of the quartz heating tube 2 without the heat-resistant tube 1, thus amplifying the operating temperature.

[0022] The thermal conductivity λ1 of the quartz heating tube 2 is higher than that of the silicon carbide heat-resistant tube 1. This ensures that the heat generated by the heating resistor can quickly pass through the quartz heating tube 2 into the heat storage gap 4, and then reach the silicon carbide heat-resistant tube 1. The silicon carbide heat-resistant tube 1 intercepts the heat, causing the heat to accumulate in the tube wall, thereby significantly increasing the temperature of the silicon carbide heat-resistant tube 1.

[0023] The wall thickness of the quartz heating tube 2 is less than that of the silicon carbide heat-insulating tube 1. The thinner wall of the quartz heating tube 2 is to enable the quartz heating tube 2 to conduct heat quickly, while the thicker wall of the silicon carbide heat-insulating tube 1 is to allow heat to accumulate on the silicon carbide heat-insulating tube 1.

[0024] Furthermore, the wall thickness d2 of the silicon carbide heat-resistant tube 1 is at least four times the wall thickness d1 of the quartz heating tube 2, and satisfies d2 / λ2 > 5d1 / λ1, so that after heat passes through the quartz heating tube 2, it accumulates on the wall of the silicon carbide heat-resistant tube 1 through the heat storage gap. This design allows heat to quickly pass through the quartz heating tube 2 to the silicon carbide heat-resistant tube 1, and the silicon carbide heat-resistant tube 1 intercepts and processes the heat.

[0025] The quartz heating tube 2 is equipped with a resistance wire, and the two ends of the resistance wire pass through the ceramic encapsulation plug 3 with wires to connect to the external circuit.

[0026] The fixing structure inside the ceramic encapsulation plug 3 includes two parallel clamping blocks 31 for clamping the ends of the quartz heating tube 2. The two ends of the quartz heating tube 2 are usually flat. By clamping and fixing the ends of the quartz heating tube 2 with the two clamping blocks 31, the ends of the quartz heating tube 2 can be fixed and encapsulated by the ceramic encapsulation plug 3.

[0027] The ceramic encapsulation plug 3 between the two clamping blocks is provided with a lead-out hole, through which the wire 33 is led out, and the wire 33 is sealed and encapsulated with the lead-out hole.

[0028] The ceramic encapsulation plug 3 and the silicon carbide heat-insulating tube 1 are sealed together by heat-resistant sealant.

[0029] The size of the heat storage gap is greater than the wall thickness of the quartz heating tube 2, and the heat storage gas is nitrogen or air.

[0030] The heating sleeve structure with thermal amplification effect provided by this utility model has a silicon carbide heat-resistant tube 1 set outside the quartz heating tube 2. The heat emitted from inside the quartz heating tube 2 passes through the quartz heating tube 2 and is then evenly radiated to the silicon carbide heat-resistant tube 1 through the heat storage gap, where the heat is stored. In contrast to the conventional quartz heating tube 2, which quickly dissipates heat and causes its own temperature to drop rapidly, thus lowering its operating temperature, this utility model has a silicon carbide heat-resistant tube 1 set outside the quartz heating tube 2, which can store heat and thus increase the temperature of the silicon carbide heat-resistant tube 1.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heating sleeve structure with thermal amplification effect, characterized in that, The device includes a silicon carbide heat-resistant tube, a quartz heating tube, and a ceramic encapsulation plug. The silicon carbide heat-resistant tube is sleeved on the outside of the quartz heating tube, and there is a heat storage gap between the inner wall of the silicon carbide heat-resistant tube and the quartz heating tube. The two ends of the silicon carbide heat-resistant tube are fixed and sealed by the ceramic encapsulation plug, while the two ends of the quartz heating tube are fixed by a fixing structure inside the ceramic encapsulation plug. The heat storage gap is filled with heat storage gas.

2. The heating sleeve structure with thermal amplification effect according to claim 1, characterized in that, The thermal conductivity λ1 of the quartz heating tube is higher than that of the silicon carbide heat-resistant tube.

3. The heating sleeve structure with thermal amplification effect according to claim 2, characterized in that, The wall thickness of the quartz heating tube is less than that of the silicon carbide heat-resistant tube.

4. The heating sleeve structure with thermal amplification effect according to claim 3, characterized in that, The wall thickness d2 of the silicon carbide heat-insulating tube is at least four times the wall thickness d1 of the quartz heating tube, and satisfies d2 / λ2>5d1 / λ1, so that after the heat passes through the quartz heating tube, it is stored in the tube wall of the silicon carbide heat-insulating tube through the heat storage gap.

5. The heating sleeve structure with thermal amplification effect according to claim 1, characterized in that, The quartz heating tube contains a resistance wire, and the two ends of the resistance wire pass through a ceramic encapsulation plug via wires to connect to an external circuit.

6. The heating sleeve structure with thermal amplification effect according to claim 1, characterized in that, The fixing structure inside the ceramic encapsulation plug includes two parallel clamping blocks for clamping the end of the quartz heating tube.

7. The heating sleeve structure with thermal amplification effect according to claim 6, characterized in that, The ceramic encapsulation plug between the two clamping blocks has a lead-out hole, through which the wire is led out, and the wire and the lead-out hole are sealed and encapsulated.

8. The heating sleeve structure with thermal amplification effect according to claim 1, characterized in that, The ceramic encapsulation plug and the silicon carbide heat-insulating tube are sealed together by heat-resistant sealant.

9. The heating sleeve structure with thermal amplification effect according to claim 1, characterized in that, The size of the heat storage gap is greater than the wall thickness of the quartz heating tube, and the heat storage gas is nitrogen or air.

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