A heating device
By setting an insulating module in the heating device to isolate the heating module and the casing unit, the problem of short circuit between the heating module and the casing unit is solved, the safety and stability of the heating device are improved, and the cost and heat transfer obstacles are reduced.
Patent Information
- Application Number
- CN202411607625.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2044-11-12
AI Technical Summary
The heating module and the casing unit may short circuit when the temperature changes, resulting in the safety and stability of the heating device being affected.
A heating device is designed, in which a plurality of insulating modules are arranged between the heating module and the casing unit. The outer diameter of the insulating module is greater than the outer diameter of the heating module and smaller than the inner diameter of the casing unit. The central axis of the insulating module is arranged at The central axis of the casing unit is away from one side of the heating area to prevent the casing unit from being in direct contact with the heating module when it is bent and deformed.
It effectively prevents the heating module and casing unit from being shorted due to deformation, improves the safety and stability of the heating device, and avoids high costs and heat transfer obstacles when using large insulating rings.
Smart Images
Figure CN119146741B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of heat treatment technology, in particular to a heating device. Background Art
[0002] As a heat treatment equipment, the heating furnace generates heat through the heating components inside to achieve heat treatment of the workpiece. The heating components are usually composed of heating modules arranged in the sleeve unit. These heating modules are in the form of electric heating and can efficiently generate the required heat energy. In order to prevent the carburizing atmosphere and corrosive gases such as ammonia in the furnace from carburizing or corroding the high-temperature heating wire, shortening the life of the heating wire, and also to reduce the direct thermal shock of the high-temperature heating wire on the processed parts, the sleeve unit is designed to isolate the atmosphere in the furnace, protect the normal operation of the heating module, and slow down the heating rate of the processed parts. This design not only extends the service life of the heating component, but also ensures the stability and safety of the heat treatment process.
[0003] When the sealed door of the heating furnace is opened to take out the heated workpiece after the heating process is completed or when the sealed door of the heating furnace is opened to place the heated workpiece, the sleeve unit of the heating component will deform due to the rapid change in temperature. If there is not enough isolation or buffer between the sleeve unit and the heating module, the two may contact each other during the deformation process and short circuit may occur. Usually, an insulating ring is sleeved on the outer peripheral side of the heating module to prevent the occurrence of short circuit. Although a larger insulating ring can effectively reduce the deformation of the sleeve unit and increase the distance between the sleeve unit and the heating module, reducing the risk of short circuit, the cost of thickening the sleeve unit and changing the furnace structure of the heating furnace is high, and it increases the obstacle to heat transfer and increases the consumption of heat energy. Although a smaller insulating ring has a lower cost and little effect on heat transfer, it is difficult to effectively prevent the deformation of the sleeve unit during long-term use, thereby affecting the sealing performance of the sleeve unit and increasing the risk of short circuit between the heating module and the sleeve unit. Summary of the invention
[0004] In order to solve the problem of how to avoid short circuit between the heating module and the sleeve unit, the present invention provides a heating device, comprising:
[0005] A furnace body assembly, wherein the furnace body assembly comprises a furnace body unit; the furnace body unit comprises a sealing door and a furnace wall; the sealing door is slidably connected to the furnace wall;
[0006] A heating assembly, the heating assembly comprising a sleeve unit and a heating unit; the sleeve unit is detachably connected to the furnace wall; the sleeve unit is arranged in the hollow cavity of the furnace wall; the heating unit comprises a heating module and an insulating module; the heating module is detachably connected to the sleeve unit; the heating module is arranged in the hollow cavity of the sleeve unit; the outer peripheral wall of the heating module is spaced apart from the inner peripheral wall of the sleeve unit; the inner peripheral wall of the insulating module is detachably connected to the outer peripheral wall of the heating module; a plurality of insulating modules are spaced apart in sequence along the axial direction of the heating module; the outer diameter of the insulating module is larger than the outer diameter of the heating module and smaller than the inner diameter of the sleeve unit; the central axis of the insulating module is spaced apart from the central axis of the sleeve unit on the side away from the heating area; the heating area is arranged in the space surrounded by the furnace wall, and the heating area is spaced apart from the heating assembly;
[0007] The furnace assembly includes an open state; the open state includes the heating area being in communication with an external space.
[0008] In some embodiments, the distance between the central axis of the insulation module with the lowest height position and the central axis of the bushing unit is greater than the distance between the central axis of the other insulation modules and the central axis of the bushing unit.
[0009] In some embodiments, a distance between two adjacent insulating modules close to the bottom end of the heating module along the axial direction of the heating module is smaller than a distance between two adjacent insulating modules far from the bottom end of the heating module along the axial direction of the heating module.
[0010] In some embodiments, the shortest distance between the top of the insulation module and the top surface of the heating module gradually increases along a direction away from the heating area to a direction close to the heating area.
[0011] In some embodiments, the insulating module includes two connecting parts, a supporting part, and an opening part; the two connecting parts and the supporting part are respectively detachably connected to the outer peripheral wall of the heating module; the two connecting parts are respectively fixedly connected to the two sides of the supporting part along the circumferential direction of the heating module; the area between the two connecting parts away from the supporting part is an opening part; the maximum distance between the supporting part and the axis of the heating module is greater than the maximum distance between the connecting part and the axis of the heating module; the supporting part is arranged on the side of the heating module away from the heating area.
[0012] In some embodiments, the heating device includes a plurality of the heating components; the plurality of heating components are arranged at intervals; the space surrounded by the furnace wall includes a first chamber; the first chamber is a partial space away from the sealed door; the support portion in the first chamber is arranged on a side of the heating module away from the heating area.
[0013] In some embodiments, the heating device includes a plurality of the heating components; the plurality of heating components are arranged at intervals; the space surrounded by the furnace wall includes a second chamber; the second chamber is a partial space close to the sealing door; the support portion in the second chamber is arranged on a side of the heating module away from the sealing door and away from the heating area.
[0014] In some embodiments, the opening is disposed on a side of the heating module close to the heating area.
[0015] In some embodiments, the sleeve unit includes a first tube wall, a second tube wall, and two sealing plates; the first tube wall is fixedly connected to the second tube wall; the first tube wall and the second tube wall surround to form a tubular body; the sealing plates are fixedly connected to the first tube wall and the second tube wall, respectively; the two sealing plates are respectively arranged at both ends of the length direction of the first tube wall; the first tube wall is arranged on the side close to the heating area; the thickness of the first tube wall is greater than the thickness of the second tube wall.
[0016] In some embodiments, the heating unit may further include an insulating tube; the insulating tube is sleeved on the outer peripheral side of the heating module; the inner diameter of the insulating tube is larger than the outer diameter of the heating module; the outer diameter of the insulating tube is smaller than the outer diameter of the insulating module; the insulating tube is detachably connected to the insulating module; the length of the insulating tube is smaller than the distance between two adjacent insulating modules along the axial direction of the heating module.
[0017] In order to solve the problem of how to avoid short circuit between the heating module and the sleeve unit, the present invention has the following advantages:
[0018] The heating device may include a furnace assembly and a heating assembly. During the heat treatment process, when the furnace assembly is in an open state, the heating area is connected to the external space, and due to the principle of thermal expansion and contraction, the side of the sleeve unit close to the heating area shrinks more violently than the side away from the heating area, causing the sleeve unit to bend toward the side with a faster cooling speed. Multiple insulating modules are arranged in sequence along the axial direction of the heating module. Since the outer diameter of the insulating module is larger than the outer diameter of the heating module and smaller than the inner diameter of the sleeve unit, and the central axis of the insulating module can be arranged at intervals on the side of the central axis of the sleeve unit away from the heating area, the insulating module can effectively prevent the sleeve unit from directly contacting the heating module when bending and deforming. In this way, not only the deformation of the sleeve unit is reduced under the premise of using a small insulating ring, and the sealing performance of the sleeve unit is avoided, but also a certain interval is ensured between the heating module and the sleeve unit, thereby avoiding the problem of short circuit between the heating module and the sleeve unit due to deformation, and finally improving the safety and stability of the heating device. In this way, the problem of how to avoid short circuit between the heating module and the sleeve unit can be solved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic diagram of a heating device according to an embodiment is shown;
[0020] Figure 2 A schematic diagram of a heating device according to another embodiment is shown;
[0021] Figure 3 A schematic diagram of a heating assembly according to an embodiment is shown;
[0022] Figure 4 A schematic diagram of an insulation module according to an embodiment is shown;
[0023] Figure 5 A schematic diagram of a heating assembly according to another embodiment is shown.
[0024] Figure numerals: 01 furnace body assembly; 11 furnace body unit; 111 sealing door; 112 furnace wall; 12 soaking unit; 121 soaking hood; 122 air guide; 13 supporting unit; 131 guide rail; 132 tray module; 02 heating assembly; 21 sleeve unit; 211 first tube wall; 212 second tube wall; 213 sealing plate; 22 heating unit; 221 heating module; 2211 supporting rod; 2212 heating wire; 222 insulating module; 2221 connecting part; 2222 supporting part; 2223 opening part; 223 insulating tube. DETAILED DESCRIPTION
[0025] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.
[0026] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.
[0027] In this embodiment, if Figure 1As shown, the heating module 221 heats the workpiece inside the heating furnace, and the sleeve unit 21 is used to isolate the furnace atmosphere to prevent the heating module 221 from aging early. When the furnace body assembly 01 is in the open state and the heating area is connected to the external space, the sleeve unit 21 will deform due to the principle of thermal expansion and contraction. Especially during the cooling process, the side of the sleeve unit 21 with a faster cooling speed shrinks more violently than the side with a slower cooling speed, causing the sleeve unit 21 to bend toward the side with a faster cooling speed as a whole. When the sleeve unit 21 contacts the heating module 221, a short circuit will occur. The insulating ring can reduce the deformation of the sleeve unit 21 to avoid a short circuit. A large insulating ring can reduce the deformation of the sleeve unit 21, but the cost is high, and the thickness of the insulating ring will also affect the heat transfer. A small insulating ring is difficult to effectively prevent the sleeve unit 21 from deforming during long-term use, which in turn affects the sealing performance of the sleeve unit 21. The heating module 221 is easily cooled after high-temperature heating to generate conductive metal debris. The metal debris may guide the current of the heating wire 2212 to the sleeve unit 21, increasing the risk of a short circuit between the heating module 221 and the sleeve unit 21. In order to solve the problem of how to avoid a short circuit between the heating module 221 and the sleeve unit 21, this embodiment provides a heating device. Figure 1 As shown, the heating device may include a furnace assembly 01 and a heating assembly 02. The furnace assembly 01 may include an open state, and the open state may include a heating area being connected to an external space, so as to facilitate taking out the heated workpiece.
[0028] The furnace assembly 01 may include a furnace unit 11, and the furnace unit 11 may include a sealing door 111 and a furnace wall 112. The sealing door 111 may be slidably connected to the furnace wall 112 to facilitate opening and closing of the sealing door 111. Figure 3As shown, the heating assembly 02 may include a sleeve unit 21 and a heating unit 22, and the sleeve unit 21 may be detachably connected to the furnace wall 112, so as to facilitate the disassembly and installation of the sleeve unit 21. The sleeve unit 21 may be arranged in a space surrounded by the furnace wall 112. The heating unit 22 may include a heating module 221 and an insulating module 222, and the heating module 221 may be detachably connected to the sleeve unit 21, so as to facilitate the installation of the heating module 221. The heating module 221 may be arranged in a hollow cavity of the sleeve unit 21, and the sleeve unit 21 is used to isolate the furnace gas and prevent the heating module 221 from aging. The outer peripheral wall of the heating module 221 may be spaced apart from the inner peripheral wall of the sleeve unit 21 to ensure that the heating module 221 and the sleeve unit 21 do not directly contact each other. The inner peripheral wall of the insulating module 222 may be detachably connected to the outer peripheral wall of the heating module 221, so as to facilitate the disassembly and installation of the insulating module 222. A plurality of insulating modules 222 can be arranged in sequence along the axial direction of the heating module 221. The outer diameter of the insulating module 222 can be larger than the outer diameter of the heating module 221 and smaller than the inner diameter of the sleeve unit 21. The insulating module 222 can effectively prevent the sleeve unit 21 from deforming, and avoid the sleeve unit 21 from deforming and contacting the heating module 221 to cause a short circuit. The central axis of the insulating module 222 can be arranged at intervals on the side of the central axis of the sleeve unit 21 away from the heating area. The heating area can be arranged in the space surrounded by the furnace wall 112. The heating area can be arranged at intervals from the heating assembly 02, so that the heating assembly 02 can heat the workpiece that needs to be heated in the heating area. In this way, when the furnace body assembly 01 is turned on, the heating area is connected to the external space, and the side of the sleeve unit 21 close to the heating area shrinks more sharply than the side away from the heating area, so that the sleeve unit 21 as a whole deforms toward the side close to the heating area. Therefore, under the premise of using a small insulating ring, the deformation of the sleeve unit 21 can be reduced, thereby avoiding the heating module 221 from contacting the sleeve unit 21 or the distance from each other being shortened and short-circuiting. At the same time, the small insulating ring can avoid affecting heat transfer and improve the heating efficiency of the workpiece.
[0029] In this embodiment, if Figure 3 As shown, the distance between the central axis of the lowest insulating module 222 and the central axis of the sleeve unit 21 can be greater than the distance between the central axis of the other insulating modules 222 and the central axis of the sleeve unit 21. Due to the principle of thermal expansion and contraction, when the sleeve unit 21 is deformed, the bottom end of the sleeve unit 21 will move toward the heating area. Therefore, the lowest insulating module 222 can be closer to the sleeve unit 21 than other insulating modules 222, which can more effectively suppress the bending deformation of the sleeve unit 21, thereby further preventing the short circuit problem between the heating module 221 and the sleeve unit 21.
[0030] In this embodiment, if Figure 3As shown, the distance between two adjacent insulating modules 222 near the bottom of the heating module 221 along the axial direction of the heating module 221 can be smaller than the distance between two adjacent insulating modules 222 far from the bottom of the heating module 221 along the axial direction of the heating module 221. Due to the principle of thermal expansion and contraction, when the sleeve unit 21 is deformed, the bottom of the sleeve unit 21 will move toward the side close to the heating area. The smaller distance between the two adjacent insulating modules 222 near the bottom of the heating module 221 can prevent the sleeve unit 21 from deforming away from the heating area and shortening the distance between the heating module 221. When the heating module 221 is heated and cooled to generate metal debris, the metal debris can be prevented from directing the current in the heating module 221 to the sleeve unit 21, thereby further preventing the occurrence of short circuit problems.
[0031] In this embodiment, if Figure 3 As shown, the shortest distance between the top of the insulating module 222 and the top surface of the heating module 221 can be gradually increased along the direction away from the heating area to the direction close to the heating area. Such a design takes into account that the heating module 221 is easily to produce conductive metal debris after high temperature heating and then cooling. If these metal debris fall on the insulating module 222, they may bridge the current and cause a short circuit. Therefore, the shortest distance between the top of the insulating module 222 and the top surface of the heating module 221 can be gradually increased along the direction away from the heating area to the direction close to the heating area, which can reduce the accumulation of metal debris on the insulating module 222. Since the part of the sleeve unit 21 away from the side of the heating area will shorten the distance with the insulating module 222 after deformation, the sleeve unit 21 close to the heating area will increase the distance between the insulating module 222 and the sleeve unit 21. The metal debris generated by heating can be guided to the position with a large distance to fall, which is more conducive to the falling of metal debris. The bottom of the sleeve unit 21 can be spaced apart from the bottom of the heating module 221, and the space set apart can be used to place the fallen metal debris without short circuit.
[0032] In this embodiment, if Figure 4As shown, the insulating module 222 may include two connecting parts 2221, a supporting part 2222, and an opening part 2223. The two connecting parts 2221 and the supporting part 2222 may be detachably connected to the outer peripheral wall of the heating module 221, respectively, for easy installation and removal. The two connecting parts 2221 may be fixedly connected to both sides of the supporting part 2222 along the circumferential direction of the heating module 221. The area where the two connecting parts 2221 are separated from the supporting part 2222 may be the opening part 2223. The maximum distance between the supporting part 2222 and the axis of the heating module 221 may be greater than the maximum distance between the connecting part 2221 and the axis of the heating module 221, and the supporting part 2222 may be arranged on the side of the heating module 221 away from the heating area. In this way, the distance between the side of the sleeve unit 21 away from the heating area and the heating module 221 can be effectively controlled. The insulating module 222 not only has a protective function, but also can discharge metal debris through the opening portion 2223. At the same time, the support portion 2222 can support the deformed sleeve unit 21 to prevent it from further deformation and causing a short circuit.
[0033] In this embodiment, if Figure 1 , Figure 2 As shown, the heating device may include a plurality of heating components 02, and the plurality of heating components 02 may be arranged at intervals. It is convenient to improve the heating efficiency. The space surrounded by the furnace wall 112 may include a first chamber, and the first chamber may be a part of the space away from the sealing door 111. The support portion 2222 in the first chamber may be arranged on the side of the heating module 221 away from the heating area. In the first chamber, the position where the temperature of the sleeve unit 21 changes most drastically is close to the heating area, which will drive the sleeve unit 21 away from the heating area. The deformation. Therefore, the support portion 2222 is arranged on the side of the heating module 221 away from the heating area to effectively prevent the deformation of the sleeve unit 21. At the same time, since the shortest distance between the top of the insulating module 222 and the top surface of the heating module 221 gradually increases from the side away from the heating area to the direction close to the heating area, the metal debris can be guided to the opening 2223, so that the metal debris is easier to fall, further preventing the occurrence of short circuit.
[0034] In this embodiment, if Figure 1 , Figure 2As shown, the heating device may include a plurality of heating components 02, and the plurality of heating components 02 are arranged at intervals. It is convenient to improve the heating efficiency. The space surrounded by the furnace wall 112 may include a second chamber, and the second chamber may be a partial space close to the sealing door 111. The support portion 2222 in the second chamber may be arranged on the side of the heating module 221 away from the sealing door 111 and away from the heating area. Since the sleeve unit 21 is close to the sealing door 111 in the second chamber, when the sealing door 111 needs to be opened for the next operation (such as cooling) after the heating is completed, the temperature of the sleeve unit 21 close to the sealing door 111 also changes quickly, so the bending direction of the sleeve unit 21 is different from the bending direction of the sleeve unit 21 in the first chamber. By setting the support portion 2222 in the second chamber on the side of the heating module 221 away from the sealing door 111 and away from the heating area, the sleeve unit 21 on the side away from the sealing door 111 and away from the heating area can be more effectively prevented from deforming, thereby further improving the safety and stability of the heating device.
[0035] In this embodiment, the opening 2223 can be arranged on the side of the heating module 221 close to the heating area. In this way, the insulation module 222 can be prevented from interfering with the heat radiation, thereby improving the heating efficiency. Because when the heating component 02 near the heating area processes the workpiece, the effect of heat radiation being transferred to the workpiece is better. Setting the opening 2223 on the side close to the heating area can more effectively utilize the heat radiation and improve the heating efficiency. And because the shortest distance between the top of the insulation module 222 and the top surface of the heating module 221 gradually increases from the side away from the heating area to the side close to the heating area, the metal debris can be guided to the opening 2223, making it easier for the metal debris to fall, further preventing the occurrence of short circuits.
[0036] In this embodiment, if Figure 1 , Figure 3 As shown, the sleeve unit 21 may include a first tube wall 211, a second tube wall 212 and two sealing plates 213. The first tube wall 211 may be fixedly connected to the second tube wall 212, the first tube wall 211 and the second tube wall 212 may be surrounded to form a tubular body, the sealing plates 213 may be fixedly connected to the first tube wall 211 and the second tube wall 212 respectively, and the two sealing plates 213 may be respectively arranged at both ends of the length direction of the first tube wall 211, so as to surround and isolate the heating module 221 from the furnace gas. The first tube wall 211 may be arranged on a side close to the heating area, and the thickness of the first tube wall 211 may be greater than the thickness of the second tube wall 212. In this way, the strength and stability of the sleeve unit 21 on the side close to the heating area can be enhanced. Since the first tube wall 211 is close to the heating area, its temperature changes faster and more violently. By making the thickness of the first tube wall 211 greater than the thickness of the second tube wall 212, its specific heat capacity can be increased, making it more difficult to deform. Thereby further improving the safety and stability of the heating device.
[0037] In this embodiment, if Figure 5 As shown, the heating unit 22 may further include an insulating tube 223. The insulating tube 223 has excellent thermal conductivity and high temperature resistance. The insulating tube 223 may be detachably connected to the insulating module 222. The insulating tube 223 may be sleeved on the outer peripheral side of the heating module 221; the inner diameter of the insulating tube 223 is larger than the outer diameter of the heating module 221; the outer diameter of the insulating tube 223 is smaller than the outer diameter of the insulating module 222; the length of the insulating tube 223 may be smaller than the distance between two adjacent insulating modules 222 along the axial direction of the heating module 221. The insulating tube 223 may be arranged at a position close to the heating module 221 where the temperature changes fastest and deformation often occurs. After the heating module 221 has been heated and cooled for a long time, the metal wire of the heating module 221 may move toward the sleeve unit 21, especially at a location where the temperature changes quickly, the phenomenon that the metal wire of the heating module 221 may move toward the sleeve unit 21 will be more prominent, and the insulating tube 223 can stably limit the distance between the metal wire of the heating module 221 and the sleeve unit 21, thereby preventing the short circuit problem between the heating module 221 and the sleeve unit 21. At the same time, the metal debris generated by the heating module 221 during use can also be separated from the sleeve unit 21 by the insulating tube 223 to prevent the short circuit between the heating module 221 and the sleeve unit 21. Since the heating module 221 can be flexible, when the sleeve unit 21 is deformed, the bottom end of the sleeve unit 21 will move toward the side close to the heating area until it abuts against the heating module 221. The heating module 221 may bend along with the sleeve unit 21. The insulating tube 223 can prevent the bending point of the heating module 221 from being too close to the sleeve unit 21, thereby further preventing the short circuit between the heating module 221 and the sleeve unit 21.
[0038] In other embodiments, the insulating tube 223 may be provided with an opening on one side close to the heating area, so as to more effectively utilize heat radiation and improve heating efficiency. The length of the insulating tube 223 may be 80% to 95% of the distance between two adjacent insulating modules 222 along the axial direction of the heating module 221, which can prevent the heating module 221 from short-circuiting after abutting against the sleeve unit 21, and can also avoid interference between the insulating tube 223 and the insulating module 222. Figure 3As shown, the heating module 221 may include a support rod 2211 and a heating wire 2212. The support rod 2211 may be detachably connected to the sleeve unit 21 to support and fix the heating wire 2212. The heating wire 2212 may be detachably connected to the outer peripheral wall of the support rod 2211 to facilitate the installation of the heating wire 2212. The heating wire 2212 may convert electrical energy into thermal energy to heat the workpiece. The heating wire 2212 may be spaced apart from the inner peripheral wall of the sleeve unit 21 to avoid short circuit with the sleeve unit 21. The inner peripheral wall of the insulating module 222 may be detachably connected to the outer peripheral wall of the support rod 2211 to facilitate the installation of the insulating module 222. The setting of the insulating module 222 may also effectively isolate and protect the heating wire 2212 and the sleeve unit 21 to prevent them from short circuiting or being damaged due to direct contact. The insulating tube 223 can be arranged at the middle and lower position of the heating wire 2212 along the axial direction of the support rod 2211. This position receives heat reflection from the bottom of the furnace unit 11, and the hot air moves upward, so the temperature changes most dramatically. In this way, it can effectively prevent the heating wire 2212 from being heated for a long time, and the spacing between the heating wire 2212 and the sleeve unit 21 caused by the spacing between the heating wire 2212 and the support rod 2211 after cooling, thereby avoiding a short circuit between the heating wire 2212 and the sleeve unit 21. Figure 2As shown, the furnace body assembly 01 may also include a heat-saturating unit 12 and a support unit 13. The heat-saturating unit 12 may include a heat-saturating cover 121 and an air guide 122. The heat-saturating cover 121 may be detachably connected to the furnace wall 112 and disposed in the space surrounded by the furnace wall 112, and at the same time spaced apart from the sleeve unit 21. The air guide 122 may be disposed at the top of the heat-saturating cover 121. The support unit 13 may include a guide rail 131 and a tray module 132. The guide rail 131 may be detachably connected to the furnace wall 112 and disposed in the space surrounded by the heat-saturating cover 121. The bottom end of part of the guide rail 131 may be spaced apart from the furnace wall 112 for gas circulation. The tray module 132 may be configured as a disc-shaped body for placing workpieces. The tray module 132 may be penetrated with a plurality of holes in the vertical direction for gas circulation. The guide rail 131 may be movably connected to the tray module 132, allowing the tray module 132 to move under the guidance of the guide rail 131. When heat treatment is performed on the workpiece, the workpiece can be placed on the tray module 132 in the space surrounded by the heat hood 121. When the heating component 02 heats up, the temperature of the heat hood 121 will also rise, so that the temperature in the space surrounded by the heat hood 121 rises, and the temperature difference between each position in the space surrounded by the heat hood 121 is small, so that each workpiece can be heated evenly. At the same time, the air guide 122 can guide the heated gas in the furnace unit 11 into the space surrounded by the heat hood 121, and then after the heated gas completes heat transfer with the workpiece, it can enter the space between the guide rail 131 and the furnace wall 112 from the hole of the tray module 132, and then be guided to the vicinity of the sleeve unit 21 by the space between the guide rail 131 and the furnace wall 112, so as to be heated again, and guided to the heat hood 121 by the air guide 122, which can improve the heating efficiency.
[0039] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.
Claims
1. A heating device, characterized in that: The heating device comprises: A furnace body assembly, wherein the furnace body assembly comprises a furnace body unit; the furnace body unit comprises a sealing door and a furnace wall; the sealing door is slidably connected to the furnace wall; A heating assembly, the heating assembly comprising a sleeve unit and a heating unit; the sleeve unit is detachably connected to the furnace wall; the sleeve unit is arranged in the hollow cavity of the furnace wall; the heating unit comprises a heating module and an insulating module; the heating module is detachably connected to the sleeve unit; the heating module is arranged in the hollow cavity of the sleeve unit; the outer peripheral wall of the heating module is spaced apart from the inner peripheral wall of the sleeve unit; the inner peripheral wall of the insulating module is detachably connected to the outer peripheral wall of the heating module; a plurality of insulating modules are spaced apart in sequence along the axial direction of the heating module; the outer diameter of the insulating module is larger than the outer diameter of the heating module and smaller than the inner diameter of the sleeve unit; the central axis of the insulating module is spaced apart from the central axis of the sleeve unit on the side away from the heating area; the heating area is arranged in the space surrounded by the furnace wall, and the heating area is spaced apart from the heating assembly; The distance between the central axis of the insulating module with the lowest height and the central axis of the bushing unit is greater than the distance between the central axis of the other insulating modules and the central axis of the bushing unit; The distance between two adjacent insulating modules close to the bottom end of the heating module along the axial direction of the heating module is smaller than the distance between two adjacent insulating modules far from the bottom end of the heating module along the axial direction of the heating module; The shortest distance between the top of the insulation module and the top surface of the heating module gradually increases from the side away from the heating area to the side close to the heating area; The furnace assembly includes an open state; the open state includes the heating area being in communication with an external space.
2. A heating device according to claim 1, characterized in that: The insulating module includes two connecting parts, a supporting part, and an opening part; the two connecting parts and the supporting part are respectively detachably connected to the outer peripheral wall of the heating module; the two connecting parts are respectively fixedly connected to the two sides of the supporting part along the circumferential direction of the heating module; the area between the two connecting parts away from the supporting part is the opening part; the maximum distance between the supporting part and the axis of the heating module is greater than the maximum distance between the connecting part and the axis of the heating module; the supporting part is arranged on the side of the heating module away from the heating area.
3. A heating device according to claim 2, characterized in that: The heating device comprises a plurality of the heating components; the plurality of the heating components are arranged at intervals; The space surrounded by the furnace wall includes a first chamber; the first chamber is a partial space away from the sealing door; the support portion in the first chamber is arranged on a side of the heating module away from the heating area.
4. A heating device according to claim 2, characterized in that: The heating device comprises a plurality of the heating components; the plurality of the heating components are arranged at intervals; The space surrounded by the furnace wall includes a second chamber; the second chamber is a portion of the space close to the sealing door; The supporting portion in the second chamber is disposed on a side of the heating module away from the sealing door and away from the heating area.
5. A heating device according to claim 3 or 4, characterized in that: The opening is disposed on a side of the heating module close to the heating area.
6. A heating device according to claim 1, characterized in that: The casing unit comprises a first tube wall, a second tube wall, and two sealing plates; the first tube wall is fixedly connected to the second tube wall; the first tube wall and the second tube wall surround to form a tubular body; the sealing plates are fixedly connected to the first tube wall and the second tube wall respectively; The two sealing plates are respectively arranged at two ends of the first tube wall in the length direction; the first tube wall is arranged on a side close to the heating area; and the thickness of the first tube wall is greater than the thickness of the second tube wall.
7. A heating device according to claim 1, characterized in that: The heating unit may further include an insulating tube; the insulating tube is sleeved on the outer peripheral side of the heating module; the inner diameter of the insulating tube is larger than the outer diameter of the heating module; the outer diameter of the insulating tube is smaller than the outer diameter of the insulating module; the insulating tube is detachably connected to the insulating module; the length of the insulating tube is smaller than the distance between two adjacent insulating modules along the axial direction of the heating module.
Citation Information
Patent Citations
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