Annealing furnace with easy cover removal

Abstract

The utility model discloses a kind of annealing furnace convenient to dismantle cover, it is related to annealing furnace technical field, including mounting bracket, and the quartz tube body of multiple groups of transparent structure is installed on mounting bracket;Quartz tube body outside is installed for the limiting device of fixed and supported, limiting device includes the support frame of fixed connection mounting bracket, the high-temperature-resistant anti-friction protection ring that is sleeved in quartz tube body outside, and the first fixed ring, the second fixed ring, support ring, third fixed ring of protection ring outside, each fixed ring upper end is equipped with limit ring, and the structural stability is enhanced by first connecting rod, second connecting rod;Quartz tube body side is hinged with detachable original furnace cover or temperature measuring furnace cover by hinge, temperature measuring furnace cover side is installed with thermometer, and original furnace cover and temperature measuring furnace cover are close to quartz tube body side and are conical structure and are equipped with sealing ring.The utility model realizes furnace cover quick dismantling, improves sealing performance and temperature measuring convenience, effectively protects quartz tube body, improves annealing treatment efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of annealing furnace technology, specifically to an annealing furnace with an easy-to-remove lid. Background Technology

[0002] An annealing furnace is a device used for heat treatment of materials. Its main function is to improve the microstructure and properties of metallic materials, eliminate internal stress, and enhance the toughness and plasticity of materials through processes such as heating, holding, and cooling. During the use of an annealing furnace, the disassembly and installation of the furnace lid is a frequent operation. For example, the furnace lid needs to be opened and closed when placing or removing workpieces to be processed, inspecting the furnace interior, and maintaining the equipment.

[0003] However, existing annealing furnaces have some shortcomings in their furnace cover design. Some furnace covers use fixed connections, such as welding or multiple bolts, making disassembly and installation cumbersome, requiring significant time and manpower, and reducing work efficiency. Other annealing furnaces, while employing detachable covers, lack effective sealing and limiting measures, leading to easy heat loss and affecting the annealing process. Furthermore, the poor stability of the furnace cover during opening and closing may pose safety hazards to operators.

[0004] Furthermore, most existing annealing furnaces lack convenient temperature measurement capabilities. Monitoring the furnace temperature often requires inserting an external temperature measuring device through the furnace opening, which is inconvenient and the accuracy of the measurements is easily affected by external factors. Meanwhile, the quartz tube, as a core component of the annealing furnace, needs proper fixation and protection during use to prevent damage from vibration, impact, etc. However, the support structures for the quartz tubes in existing annealing furnaces are typically simple, with poor fixation and a lack of effective high-temperature and friction protection, thus shortening the lifespan of the quartz tube.

[0005] Therefore, in view of the problems existing in the above-mentioned prior art, there is an urgent need to design an annealing furnace that is easy to remove the cover, has good sealing performance, has convenient temperature measurement function, and can effectively fix and protect the quartz tube. Utility Model Content

[0006] The present invention aims to solve the above-mentioned technical problems by providing an annealing furnace with an easy-to-remove lid.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: An annealing furnace with an easy-to-remove cover includes a mounting frame on which multiple sets of transparent quartz tubes are mounted; a limiting device for fixing and supporting the quartz tubes is installed on the outside of the quartz tubes; and a detachable original furnace cover or a temperature measuring furnace cover is installed on one side of the quartz tubes.

[0008] Furthermore, the limiting device includes a support frame for fixed connection mounting bracket and a high-temperature and friction-resistant protective ring fitted on the outside of the quartz tube. A first fixing ring, a second fixing ring, a support ring, and a third fixing ring are installed on the outside of the protective ring. Limiting rings are installed at the upper ends of the first, second, and third fixing rings by bolts. A first connecting rod is installed between the second fixing ring and the support ring. A second connecting rod is installed between the first and third fixing rings and between the two limiting rings connected to the first and third fixing rings.

[0009] Furthermore, the support frame is fixedly connected to the mounting frame by bolts. The bolt connection method facilitates the installation, disassembly, and maintenance of the support frame, while ensuring the stability and reliability of the connection between the support frame and the mounting frame.

[0010] Furthermore, the first and second fixing rings are fixedly connected to the support frame by bolts. The bolts tightly connect the first and second fixing rings to the support frame, which can provide stable support and fixation for the quartz tube body and prevent the quartz tube body from shaking or displacing during use.

[0011] Furthermore, the third fixing ring is installed at the opening of the quartz tube. The original furnace cover or the temperature measuring furnace cover is hinged to the third fixing ring. The hinge connection allows the original furnace cover and the temperature measuring furnace cover to rotate flexibly around the third fixing ring, realizing the quick opening and closing of the furnace cover and making the operation convenient. At the same time, the setting of the third fixing ring provides a stable support foundation for the installation of the furnace cover.

[0012] Furthermore, a thermometer for measuring the temperature inside the quartz tube is installed on one side of the temperature measuring furnace cover. The thermometer can monitor the temperature inside the quartz tube in real time without the need for additional temperature measuring equipment, which simplifies the temperature measurement operation and makes the measurement results more accurate and reliable, allowing operators to adjust the annealing process parameters in a timely manner according to the temperature.

[0013] Furthermore, the original furnace cover or temperature measuring furnace cover has a conical structure on the side near the quartz tube, and a sealing ring is installed on the side of the original furnace cover or temperature measuring furnace cover near the quartz tube for sealing. The conical structure facilitates precise alignment between the furnace cover and the quartz tube opening, improving the installation efficiency of the furnace cover, while the sealing ring fills the gap between the furnace cover and the quartz tube opening, enhancing the sealing performance of the annealing furnace, effectively reducing heat loss inside the furnace, and ensuring the annealing treatment effect.

[0014] With the above structure, this utility model has the following advantages: This invention utilizes a removable original furnace cover or temperature measuring furnace cover on one side of the quartz tube, and hinges the original furnace cover and temperature measuring furnace cover to the third fixing ring, which enables quick disassembly and installation of the furnace cover. The operation is simple and quick, greatly saving time and labor costs and improving work efficiency.

[0015] The original furnace cover or temperature measuring furnace cover has a sealing ring installed on the side near the quartz tube. The sealing ring can effectively seal the gap between the furnace cover and the quartz tube opening, reduce the loss of heat inside the furnace, ensure the stability of the furnace temperature, thereby ensuring the annealing effect and improving the quality of the product.

[0016] A thermometer is installed on one side of the temperature measuring furnace lid, which can measure the temperature inside the quartz tube in real time and accurately. Operators can adjust the annealing process in a timely manner according to the temperature displayed by the thermometer, without the need for additional temperature measuring equipment, which simplifies the operation process and improves the convenience and accuracy of temperature monitoring.

[0017] The limiting device installed on the outside of the quartz tube, through the cooperation of the support frame, the first fixing ring, the second fixing ring, the third fixing ring, the limiting ring, the first connecting rod, and the second connecting rod, can stably fix and support the quartz tube, preventing it from shaking or shifting during use. At the same time, the protective ring has the functions of high temperature resistance and friction resistance, which can protect the quartz tube from high temperature damage and friction damage, thus extending the service life of the quartz tube.

[0018] The mounting rack is equipped with multiple sets of transparent quartz tubes. The arrangement of multiple sets of quartz tubes allows for the simultaneous annealing of multiple workpieces, improving processing efficiency. The transparent quartz tubes also facilitate operators' observation of the annealing process of the workpieces inside the furnace, enabling them to promptly identify and address any issues.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram illustrating the use of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the limiting device of this utility model; Figure 4 This is a schematic diagram of the structure of the temperature measuring furnace cover of this utility model.

[0023] As shown in the figure: 1. Quartz tube body; 2. Limiting device; 201. Support frame; 202. First fixing ring; 203. Second fixing ring; 204. Protective ring; 205. Limiting ring; 207. Support ring; 208. Third fixing ring; 209. First connecting rod; 210. Second connecting rod; 3. Original furnace cover; 4. Temperature measuring furnace cover; 401. Thermometer. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] The present invention will now be described in further detail in conjunction with the full text.

[0027] Combined with appendix Figures 1-3 An annealing furnace with an easy-to-remove cover includes a mounting frame on which multiple sets of transparent quartz tubes 1 are mounted. The transparent quartz tubes 1 allow operators to easily observe the annealing status of the workpieces inside. Multiple sets can process multiple workpieces simultaneously, improving work efficiency.

[0028] In specific implementation of this utility model, such as Figure 1 and Figure 2As shown, a limiting device 2 for fixing and supporting the quartz tube 1 is installed on the outside of the quartz tube 1. The limiting device 2 includes a support frame 201 that is fixedly connected to the mounting bracket by bolts. The bolt connection facilitates subsequent disassembly and maintenance while ensuring a stable connection. A protective ring 204 with high-temperature resistance and anti-friction functions is fitted on the outside of the quartz tube 1. The protective ring 204 can be made of high-temperature resistant silicone or ceramic fiber material, with a temperature resistance range of -20℃ to 1200℃ and a friction coefficient ≤0.15. It can effectively protect the quartz tube 1 and prevent it from being damaged in high-temperature environments and from scratches caused by friction.

[0029] In a specific implementation of this utility model, a first fixing ring 202, a second fixing ring 203, a support ring 207, and a third fixing ring 208 are sequentially installed on the outer side of the protective ring 204. The first fixing ring 202 and the second fixing ring 203 are fixedly connected to the support frame 201 by bolts. (Both the fixing rings and the support rings are made of 304 stainless steel and have undergone high-temperature aging treatment, with a thermal expansion coefficient ≤17×10⁻⁶.) -6 / ℃, to ensure structural stability under high temperature conditions) The first fixing ring 202 and the second fixing ring 203 are tightly connected to the support frame 201 by the tightening action of bolts, thereby providing a stable support effect for the quartz tube 1 and preventing the quartz tube 1 from shaking during operation.

[0030] In a specific implementation of this invention, the upper ends of the first fixing ring 202, the second fixing ring 203, and the third fixing ring 208 are bolted with limiting rings 205. The limiting rings 205 can limit the quartz tube 1 from above, further enhancing the stability of the quartz tube 1 installation. A first connecting rod 209 is installed between the second fixing ring 203 and the support ring 207. A second connecting rod 210 is installed between the first fixing ring 202 and the third fixing ring 208, and between the two limiting rings 205 connected to the first fixing ring 202 and the third fixing ring 208. The arrangement of the first connecting rod 209 and the second connecting rod 210 makes the overall structure of the limiting device 2 more robust, improving the support and fixing effect on the quartz tube 1.

[0031] In a specific implementation of this utility model, the third fixing ring 208 is installed at the opening of the quartz tube 1. The original furnace cover 3 or the temperature measuring furnace cover 4 is hinged to the third fixing ring 208. The hinge connection allows the original furnace cover 3 and the temperature measuring furnace cover 4 to rotate easily around the third fixing ring 208. The original furnace cover 3 and the third fixing ring 208 are connected by the hinge connection, realizing quick opening and closing. Compared with the traditional multiple bolt fixing method, it greatly simplifies the disassembly and installation process of the furnace cover and saves operation time.

[0032] Specifically, the original furnace cover 3 and the temperature measuring furnace cover 4 are detachable. When temperature measurement is required, the original furnace cover 3 can be removed and the temperature measuring furnace cover 4 can be installed. A thermometer 401 for measuring the temperature inside the quartz tube 1 is installed on one side of the temperature measuring furnace cover 4. The thermometer 401 can be a thermocouple thermometer or an infrared thermometer. Its probe extends into the inside of the quartz tube 1 and can measure the temperature inside the furnace in real time and display the temperature data. The operator can adjust the heating parameters of the annealing furnace in a timely manner according to the displayed temperature to ensure the accuracy of the annealing process.

[0033] In specific implementation of this invention, the original furnace cover 3 or the temperature-measuring furnace cover 4 has a conical structure on the side near the quartz tube 1. This conical design makes it easier for the furnace cover to align with the opening of the quartz tube 1 when closed, improving the accuracy and efficiency of the closing process. Simultaneously, a sealing ring is installed on the side of the original furnace cover 3 or the temperature-measuring furnace cover 4 near the quartz tube 1. This sealing ring can be made of high-temperature resistant fluororubber, which tightly fits the opening of the quartz tube 1 and the conical surface of the furnace cover, filling the gap between them. This effectively prevents heat loss from the furnace, ensuring stable furnace temperature and thus guaranteeing the annealing quality of the workpiece.

[0034] Specifically, thermometer 401 is existing technology. A type K thermocouple can be used as the temperature sensor, directly measuring temperatures in the range of 0-1300℃, meeting the measurement requirements of annealing furnaces. Its positive electrode (KP) has a nominal chemical composition of Ni:Cr=90:10, and its negative electrode (KN) has a nominal chemical composition of Ni:Si=97:3. The operating temperature is -200℃ to 1300℃. It has advantages such as good linearity, large thermoelectric potential, high sensitivity, good stability and uniformity, strong oxidation resistance, and low price, making it widely used in oxidizing and inert atmospheres. It has high measurement accuracy, with a basic error limit of ±0.75%t (t is the measured temperature value of the sensing element), and a response time ≤1 second, enabling rapid and accurate measurement of furnace temperature. The type K thermocouple can operate stably and accurately measure temperature, playing a good temperature measurement role in annealing furnaces. However, it cannot be used directly at high temperatures in sulfur, reducing or alternating reducing and oxidizing atmospheres or in vacuum, nor is it recommended for use in weak oxidizing atmospheres. If the atmosphere inside the annealing furnace meets its requirements, then the K-type thermocouple is a suitable choice.

[0035] If the temperature inside the annealing furnace is between 1000-1300℃ and high accuracy is required, type S and type N thermocouples can be selected; if the temperature is between 1300-1800℃ and high accuracy is required, type B thermocouples can be selected.

[0036] This easily removable annealing furnace allows operators to choose between installing the original furnace cover 3 or the temperature-measuring furnace cover 4, depending on their needs. When annealing is required and real-time temperature monitoring is not necessary, the original furnace cover 3 is installed and hinged to the opening of the quartz tube 1, with a sealing ring providing a seal. When real-time temperature monitoring is required, the original furnace cover 3 is removed and the temperature-measuring furnace cover 4 is installed, ensuring the original cover 3 remains undamaged. The furnace temperature can also be monitored via thermometer 401, allowing operators to adjust heating parameters based on the temperature data. The limiting device 2 provides stable support and protection for the quartz tube 1 throughout the process, ensuring normal equipment operation and extending the lifespan of the quartz tube 1.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. An annealing furnace with an easy-to-remove lid, characterized in that, Includes a mounting frame on which multiple sets of transparent quartz tubes (1) are mounted. A limiting device (2) for fixing and supporting the quartz tube (1) is installed on the outside of the quartz tube (1); The quartz tube (1) is fitted with a removable original furnace cover (3) or a temperature measuring furnace cover (4) on one side.

2. The annealing furnace with an easily removable lid according to claim 1, characterized in that: The limiting device (2) includes a support frame (201) for fixed connection mounting bracket and a high-temperature and friction-resistant protective ring (204) fitted on the outside of the quartz tube body (1). A first fixing ring (202), a second fixing ring (203), a support ring (207) and a third fixing ring (208) are installed on the outside of the protective ring (204). A limiting ring (205) is installed on the upper end of the first fixing ring (202), the second fixing ring (203) and the third fixing ring (208) by bolts. A first connecting rod (209) is installed between the second fixing ring (203) and the support ring (207). A second connecting rod (210) is installed between the first fixing ring (202) and the third fixing ring (208) and between the two limiting rings (205) connected to the first fixing ring (202) and the third fixing ring (208).

3. An annealing furnace with easy-to-remove cover according to claim 2, characterized in that: the support frame (201) is fixedly connected to the mounting frame by bolts.

4. An annealing furnace with easy-to-remove cover according to claim 2, characterized in that: the first fixing ring (202) and the second fixing ring (203) are fixedly connected to the support frame (201) by bolts.

5. An annealing furnace with easy-to-remove cover according to claim 2, characterized in that: the third fixing ring (208) is installed at the tube opening of the quartz tube (1), and the original furnace cover (3) or temperature measuring furnace cover (4) is hinged to the third fixing ring (208) by a detachable hinge.

6. An annealing furnace with easy-to-remove cover according to claim 2, characterized in that: a thermometer (401) for measuring the temperature inside the quartz tube (1) is mounted on one side of the temperature measuring furnace cover (4).

7. An annealing furnace with easy-to-remove cover according to claim 1, characterized in that: the original furnace cover (3) or temperature measuring furnace cover (4) has a conical structure on the side near the quartz tube (1), and a sealing ring for sealing is installed on the side of the original furnace cover (3) or temperature measuring furnace cover (4) near the quartz tube (1).

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