Heat dissipation system and resistance furnace

Abstract

The utility model provides a heat dissipation system and a resistance furnace, and belongs to the technical field of metal heat treatment equipment. The heat dissipation system comprises a plurality of exhaust holes, a plurality of air inlet holes and a temperature control assembly; the plurality of exhaust holes are distributed along the axial direction of the resistance furnace; the plurality of air inlet holes are formed in the lower side of the resistance furnace, and each air inlet hole is provided with at least one corresponding exhaust hole, so that entered gas is spread to the corresponding exhaust hole, and a plurality of groups of heat dissipation spaces which are arranged at intervals in the axial direction of the resistance furnace are formed; the temperature control assembly is used for monitoring the temperature of each group of heat dissipation space; wherein the exhaust hole is connected with an upper adjusting mechanism, and the air inlet hole is connected with a lower adjusting mechanism; the temperature control assembly is further used for controlling any one of the upper adjusting mechanisms or the lower adjusting mechanisms so as to change the corresponding heat dissipation airflow. According to the heat dissipation system and the resistance furnace, through the corresponding design of the air inlet / exhaust holes in the upper side and the lower side, it can be ensured that each heat dissipation airflow covers a specific area in a targeted mode, and the temperature control precision and the operation efficiency of the resistance furnace are improved by combining the temperature control assembly and the adjusting mechanism.

Description

Technical Field

[0001] This utility model belongs to the technical field of metal heat treatment equipment, and more specifically, it relates to a heat dissipation system and an electric resistance furnace. Background Technology

[0002] An electric resistance furnace is a device that uses an electric current passing through a heating element (such as a resistance wire or silicon carbide rod) to generate Joule heat, thereby heating the material inside the furnace. It has advantages such as relatively simple structure, high temperature control accuracy, good heating uniformity, and convenient operation and maintenance. It is widely used in heat treatment processes (such as annealing, normalizing, quenching, and tempering), powder sintering, and crystal growth of metallic materials in metallurgy, machinery, ceramics, chemical industry, and scientific research.

[0003] After the resistance furnace has completed heating, it is usually necessary to cool the furnace to meet the requirements of subsequent processing or material microstructure and properties. The commonly used method is to open the furnace door and use the natural convection and radiation of the air inside and outside the furnace for heat dissipation.

[0004] The inventors discovered that existing heat dissipation methods suffer from uneven heat dissipation efficiency distribution within the furnace. Specifically, materials near the furnace door are directly exposed to the cold air and dissipate heat very quickly; while materials located deeper inside the furnace, due to their distance from the furnace door, experience significantly slower cooling than materials near the furnace door. Utility Model Content

[0005] The purpose of this application is to provide a heat dissipation system and an electric resistance furnace to solve the technical problem of uneven heat dissipation efficiency in existing electric resistance furnace heat dissipation methods.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] A heat dissipation system is provided, comprising:

[0008] Multiple exhaust vents are provided on the upper side of the resistance furnace and arranged along the axial direction of the furnace.

[0009] Multiple air inlets are provided on the lower side of the electric resistance furnace, each air inlet having at least one corresponding exhaust port to allow the incoming gas to propagate to the corresponding exhaust port, forming at least one stream of heat dissipation airflow, and multiple sets of heat dissipation spaces spaced apart along the axial direction of the electric resistance furnace; and

[0010] Temperature control components are used to monitor the temperature of each group of heat dissipation spaces;

[0011] The exhaust port is connected to an upper adjustment mechanism for controlling its exhaust efficiency, and the air inlet is connected to a lower adjustment mechanism for controlling its ventilation efficiency.

[0012] The temperature control component is also used to control any one of the upper or lower adjustment mechanisms to change the corresponding heat dissipation airflow.

[0013] In one possible implementation, the heat dissipation system further includes:

[0014] Multiple exhaust pipes are installed on the upper side of the electric resistance furnace and are connected to the multiple exhaust holes one by one. The corresponding exhaust pipes are coaxially arranged with the exhaust holes.

[0015] The upper adjustment mechanism is used to close part or all of the cavity of the exhaust pipe in order to adjust the exhaust efficiency of the exhaust port.

[0016] In one possible implementation, the upper adjustment mechanism includes:

[0017] A cover plate is disposed at the outlet of the exhaust pipe, the cover plate being hinged to the exhaust pipe, and the hinge axis of the cover plate being perpendicular to the axis of the exhaust pipe; when the cover plate rotates about its hinge axis, the cover plate is adapted to close the cavity of the exhaust pipe; and

[0018] A first electric push rod is disposed on the upper side of the resistance furnace, and the power output end of the first electric push rod is hinged to the cover plate; the hinge axis of the power output end of the first electric push rod is parallel to the hinge axis of the cover plate.

[0019] When the power output end of the first electric push rod extends or retracts, the first electric push rod is adapted to drive the cover plate to rotate, so that the cover plate covers part of the exhaust pipe cavity or closes the entire exhaust pipe cavity.

[0020] In one possible implementation, the cover plate is provided with a first fireproof partition on the side that connects to the exhaust port end of the exhaust pipe;

[0021] When the first electric push rod drives the cover plate to rotate, the first fireproof partition is adapted to block part of the exhaust pipe cavity or close the exhaust pipe cavity.

[0022] In one possible implementation, the air inlet is a strip-shaped structure, and the length direction of the air inlet is parallel to the axis of the resistance furnace; furthermore, a plurality of air inlets are arranged side by side in the horizontal direction, and the arrangement direction of the plurality of air inlets is perpendicular to the axis of the resistance furnace, and the axis of each air inlet is parallel to the vertical direction.

[0023] In one possible implementation, the lower adjustment mechanism includes:

[0024] A connecting rod is hinged to the side wall of the resistance furnace, and the hinge axis of the connecting rod is parallel to the axis of the resistance furnace; a top plate is provided at one end of the connecting rod, and the top plate is adapted to close the air inlet when the connecting rod rotates about its hinge axis; and

[0025] The second electric push rod is disposed on the side of the resistance furnace, and the power output end of the second electric push rod is hinged to the other end of the connecting rod, and the hinge axis of the power output end of the second electric push rod is parallel to the hinge axis of the connecting rod.

[0026] When the power output end of the second electric push rod extends or retracts, the second electric push rod is adapted to drive the connecting rod to rotate, so that the top plate partially blocks the air inlet or completely closes the air inlet.

[0027] In one possible implementation, the top plate is provided with a second fireproof partition on the side that is connected to the air inlet end of the air inlet.

[0028] When the second electric push rod drives the connecting rod to rotate, the second fireproof partition is adapted to partially block the air inlet or completely close the air inlet.

[0029] In one possible implementation, the temperature control component comprises a plurality of temperature sensors spaced apart along the axial direction of the resistance furnace, and the plurality of temperature sensors correspond one-to-one with a plurality of the heat dissipation spaces for monitoring the temperature of the corresponding heat dissipation spaces.

[0030] In one possible implementation, the heat dissipation system further includes:

[0031] A controller is installed on the resistance furnace; the signal input terminal of the controller is electrically connected to multiple temperature sensors to receive the monitoring values ​​of each temperature sensor; the controller has multiple signal output terminals, each of which corresponds to multiple sets of heat dissipation spaces, and each signal output terminal is electrically connected to the upper adjustment mechanism and the lower adjustment mechanism in the corresponding heat dissipation space to adjust the heat dissipation airflow in each set of heat dissipation spaces.

[0032] In this embodiment, during operation of the resistance furnace, external air enters the furnace body through the lower air inlet, flows axially, and passes through each set of heat dissipation spaces—the areas where the material inside the furnace needs heat dissipation. After absorbing heat, it is discharged through the upper exhaust port, forming multiple independent heat dissipation airflows. The temperature control component monitors the temperature of each heat dissipation space in real time. If the temperature of a certain area exceeds the standard, the temperature control component controls the upper adjustment mechanism corresponding to that area to adjust the opening of the exhaust port or the lower adjustment mechanism to adjust the opening of the air inlet, thereby changing the flow rate or speed of the heat dissipation airflow and thus precisely regulating the temperature of that area.

[0033] Compared with the prior art, the heat dissipation system provided in this application embodiment ensures that each heat dissipation airflow specifically covers a specific area through the corresponding design of the upper and lower air intake / exhaust holes, avoiding the energy waste caused by the "overall cooling" of traditional heat dissipation systems; combined with the linkage of temperature control components and adjustment mechanisms, "zoned-precise" heat dissipation is achieved, improving the temperature control accuracy and operating efficiency of the resistance furnace.

[0034] The technical solution adopted in this application also provides a resistance furnace, including the heat dissipation system proposed in any of the foregoing.

[0035] The beneficial effects of the resistance furnace provided in this embodiment are the same as those of the aforementioned heat dissipation system, and will not be repeated here. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, 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.

[0037] Figure 1 Schematic cross-sectional view of the heat dissipation system provided in the embodiments of this application. Figure 1 ;

[0038] Figure 2 Schematic cross-sectional view of the heat dissipation system provided in the embodiments of this application. Figure 2 ;

[0039] Figure 3 for Figure 2 Partial structural diagram of the structure;

[0040] The following are the labeling elements in the figure:

[0041] 1. Exhaust port; 2. Air inlet port; 3. Temperature sensor; 4. Upper adjustment mechanism; 41. Cover plate; 411. First fireproof partition; 42. First electric push rod; 5. Lower adjustment mechanism; 51. Connecting rod; 52. Second electric push rod; 53. Top plate; 531. Second fireproof partition; 6. Exhaust pipe; 7. Controller; 8. Resistance furnace. Detailed Implementation

[0042] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0043] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0044] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0046] Please refer to the following: Figures 1 to 3 The heat dissipation system and resistance furnace provided in this application will now be described. The heat dissipation system includes multiple exhaust ports 1, multiple air inlets 2, and a temperature control component.

[0047] Multiple exhaust holes 1 are provided on the upper side of the resistance furnace 8 and are arranged along the axial direction of the resistance furnace 8.

[0048] Multiple air inlets 2 are provided on the lower side of the resistance furnace 8. Each air inlet 2 has at least one corresponding exhaust port 1 so that the incoming gas can be propagated to the corresponding exhaust port 1 to form at least one heat dissipation airflow and multiple sets of heat dissipation spaces are arranged at intervals along the axial direction of the resistance furnace 8.

[0049] The temperature control component is used to monitor the temperature of each heat dissipation space.

[0050] The exhaust port 1 is connected to an upper adjustment mechanism 4 for controlling its exhaust efficiency, and the air inlet port 2 is connected to a lower adjustment mechanism 5 for controlling its ventilation efficiency.

[0051] The temperature control component is also used to control either the upper adjustment mechanism 4 or the lower adjustment mechanism 5 to change the corresponding heat dissipation airflow.

[0052] The number of air inlet 2 and air outlet 1 can be adjusted according to the length of the resistance furnace 8 (e.g., increase the density of the holes for a long furnace body), or a guide plate can be added in the heat dissipation space to guide the airflow to flow more concentratedly through high-temperature components (e.g., near the heating element), thereby further improving the heat dissipation efficiency.

[0053] In this embodiment, when the resistance furnace 8 is running, external air enters the furnace body through the lower air inlet 2, flows axially, and passes through each group of heat dissipation spaces, i.e., the areas where the material inside the furnace needs to dissipate heat. After absorbing heat, it is discharged through the upper exhaust port 1, forming multiple independent heat dissipation airflows. The temperature control component monitors the temperature of each group of heat dissipation spaces in real time. If the temperature of a certain area exceeds the standard, the temperature control component controls the upper adjustment mechanism 4 corresponding to that area to adjust the opening of the exhaust port 1 or the lower adjustment mechanism 5 to adjust the opening of the air inlet 2, thereby changing the flow rate or speed of the heat dissipation airflow and thus precisely regulating the temperature of that area.

[0054] Compared with the prior art, the heat dissipation system provided in this application embodiment ensures that each heat dissipation airflow specifically covers a specific area through the corresponding design of the upper and lower air intake / exhaust holes 1, avoiding the energy waste caused by the "overall cooling" of traditional heat dissipation systems; combined with the linkage of temperature control components and adjustment mechanisms, "zoned-precise" heat dissipation is achieved, improving the temperature control accuracy and operating efficiency of the resistance furnace 8.

[0055] In some embodiments, the above-described heat dissipation system may employ, for example... Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The cooling system also includes multiple exhaust pipes.

[0056] Multiple exhaust pipes 6 are used to be installed on the upper side of the electric resistance furnace 8, and are connected to multiple exhaust holes 1 one by one. The corresponding exhaust pipes 6 and exhaust holes 1 are coaxially arranged.

[0057] The upper adjustment mechanism 4 is used to close part or the entire cavity of the exhaust pipe 6 in order to adjust the exhaust efficiency of the exhaust port 1.

[0058] The exhaust port 1 is connected to the outside through the coaxially arranged exhaust pipe 6. The upper adjustment mechanism 4 adjusts the exhaust efficiency by controlling the opening of the exhaust pipe 6 (partially closed or completely closed). When it is necessary to enhance the heat dissipation of a certain area, the upper adjustment mechanism 4 opens the corresponding exhaust pipe 6 to allow the hot air to be discharged quickly; if it is necessary to reduce heat dissipation (such as when the temperature of the area has reached the standard), the pipe cavity is partially or completely closed to reduce the exhaust volume.

[0059] The exhaust pipe 6 can adopt a telescopic structure (such as a stacked steel pipe) to automatically adjust its length according to the temperature change of the furnace body (extending to enhance exhaust at high temperatures and shortening to reduce heat loss at low temperatures); or a filter screen can be added to the outlet of the exhaust pipe 6 to prevent external debris from entering the furnace body.

[0060] The coaxial design of the exhaust pipe 6 makes the exhaust direction more concentrated (perpendicular to the furnace body axis), avoiding local high temperature caused by the diffusion of hot air on the furnace body surface; by adjusting the opening of the exhaust pipe 6, the exhaust volume can be controlled more directly and efficiently. Compared with directly adjusting the exhaust hole 1 itself (such as the opening size), the structure is easier to maintain (the exhaust pipe 6 can be disassembled and replaced independently).

[0061] In some embodiments, the upper adjustment mechanism 4 described above may employ, for example... Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The upper adjustment mechanism 4 includes a cover plate 41 and a first electric push rod 42.

[0062] The cover plate 41 is disposed at the outlet of the exhaust pipe 6. The cover plate 41 is hinged to the exhaust pipe 6, and the hinge axis of the cover plate 41 is perpendicular to the axis of the exhaust pipe 6. When the cover plate 41 rotates around its hinge axis, the cover plate 41 is adapted to close the cavity of the exhaust pipe 6.

[0063] The first electric push rod 42 is disposed on the upper side of the resistance furnace 8, and the power output end of the first electric push rod 42 is hinged to the cover plate 41; the hinge axis of the power output end of the first electric push rod 42 is parallel to the hinge axis of the cover plate 41.

[0064] When the power output end of the first electric push rod 42 extends or retracts, the first electric push rod 42 is adapted to drive the cover plate 41 to rotate, so that the cover plate 41 blocks part of the cavity of the exhaust pipe 6 or closes the entire cavity of the exhaust pipe 6.

[0065] When the power output end of the first electric push rod 42 extends or retracts, it pushes the cover plate 41, which is hinged to it, to rotate around the hinge axis (the hinge axis is perpendicular to the axial direction of the exhaust pipe 6). When the cover plate 41 rotates towards the exhaust outlet of the exhaust pipe 6, it gradually covers the pipe cavity (partially seals it); when the cover plate 41 is completely in contact with the end face of the exhaust pipe 6, the pipe cavity is completely sealed. By controlling the extension and retraction of the electric push rod, the rotation angle of the cover plate 41 can be precisely adjusted, thereby controlling the exhaust volume.

[0066] The first electric push rod 42 can be replaced with a servo motor, which drives the cover plate 41 to rotate through gear and rack transmission to achieve more precise angle control; or a sealing strip can be added to the contact surface between the cover plate 41 and the exhaust pipe 6 to reduce the amount of air leakage when completely sealed.

[0067] The linear motion of the electric push rod is linked to the rotation of the cover plate 41. The structure is simple and the adjustment accuracy is high. The exhaust volume can be adjusted by controlling the push rod stroke. The hinge design makes the cover plate 41 move smoothly, avoids jamming, and has high reliability in long-term use.

[0068] In some embodiments, the cover plate 41 may be adopted as follows: Figure 1and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The cover plate 41 is provided with a first fireproof partition 411 on the side that is connected to the exhaust port end of the exhaust pipe 6.

[0069] When the first electric push rod 42 drives the cover plate 41 to rotate, the first fireproof partition 411 is suitable for blocking part of the cavity of the exhaust pipe 6 or sealing the cavity of the exhaust pipe 6.

[0070] A first fireproof baffle 411 is provided on the side of the cover plate 41 facing the exhaust pipe 6 outlet. When the cover plate 41 is rotated to block the exhaust pipe 6, the fireproof baffle directly contacts the end face of the exhaust pipe 6 (partially or completely sealing the pipe cavity), preventing the high-temperature airflow (which may carry sparks) in the furnace from directly contacting the metal part of the cover plate 41, and avoiding the risk of deformation or combustion of the cover plate 41 due to high temperature.

[0071] Fireproof partitions can adopt a multi-layer composite structure (such as an outer layer of ceramic fiber + an inner layer of stainless steel mesh) to ensure high temperature resistance and enhance structural strength; or a high temperature resistant coating (such as an alumina coating) can be applied to the surface of the partition to further improve its resistance to ablation.

[0072] Fireproof partitions, as high-temperature resistant buffer layers (such as ceramic fiber boards), can withstand high temperatures inside the furnace, protect the main structure of the cover plate 41 (usually metal) from being burned, and extend the service life of the adjustment mechanism. At the same time, the heat insulation properties of the fireproof partitions can reduce the heat loss from the exhaust pipe 6 outlet when the resistance furnace 8 is heating up normally, thereby improving the thermal efficiency of the furnace body.

[0073] In some embodiments, the air inlet 2 may be as follows: Figures 1 to 3 The structure shown is described in the following document. Figures 1 to 3 The air inlet 2 adopts a strip structure, and the length direction of the air inlet 2 is parallel to the axis of the resistance furnace 8; in addition, multiple air inlets 2 are arranged side by side in the horizontal direction, and the arrangement direction of multiple air inlets 2 is perpendicular to the axis of the resistance furnace 8, and the axis of each air inlet 2 is parallel to the vertical direction.

[0074] The air inlet 2 is a strip-shaped structure (the length direction is parallel to the furnace body axis). Multiple air inlets 2 are arranged side by side in the horizontal direction (perpendicular to the furnace body axis), and the axis of each air inlet 2 is in the vertical direction (perpendicular to the furnace body radial direction). External air enters the lower side of the furnace body evenly through the strip-shaped holes, and when it flows along the axis, it covers a wider horizontal area (perpendicular to the axis). After making full contact with the heat dissipation space inside the furnace, it rises and is discharged.

[0075] The length of the strip-shaped air inlet 2 can be adjusted according to the heat dissipation requirements of different areas of the furnace body. For example, the air inlet 2 in the area where the heating elements are concentrated can be longer; or guide vanes can be added inside the air inlet 2 at a certain angle to the axis to guide the airflow to flow obliquely upward and enhance the contact time with the heat dissipation space.

[0076] Compared to circular holes, the design of strip-shaped air inlets 2 increases the air intake area, and the length direction is consistent with the furnace body axis, making the airflow distribution more uniform in the axial direction and avoiding heat dissipation blind spots caused by insufficient local air intake; the horizontal parallel arrangement ensures horizontal (perpendicular to the axial direction) airflow coverage, achieving uniform heat dissipation in two dimensions (axial + horizontal).

[0077] In some embodiments, the lower adjustment mechanism 5 may employ, for example, Figures 1 to 3 The structure shown is described in the following document. Figures 1 to 3 The lower adjustment mechanism 5 includes a connecting rod 51 and a second electric push rod 52.

[0078] The connecting rod 51 is hinged to the side wall of the resistance furnace 8, and the hinge axis of the connecting rod 51 is parallel to the axis of the resistance furnace 8; a top plate 53 is provided on one end of the connecting rod 51, and the top plate 53 is adapted to close the air inlet 2 when the connecting rod 51 rotates around its hinge axis.

[0079] The second electric push rod 52 is disposed on the side of the resistance furnace 8, and the power output end of the second electric push rod 52 is hinged to the other end of the connecting rod 51, and the hinge axis of the power output end of the second electric push rod 52 is parallel to the hinge axis of the connecting rod 51.

[0080] When the power output end of the second electric push rod 52 extends or retracts, the second electric push rod 52 is adapted to drive the connecting rod 51 to rotate so that the top plate 53 partially blocks or completely closes the air inlet 2.

[0081] When the power output end of the second electric push rod 52 extends or retracts, it drives the connecting rod 51, which is hinged to it, to rotate around the hinge axis (parallel to the furnace body axis). The top plate 53 at one end of the connecting rod 51 rotates with the connecting rod 51 and moves towards the air inlet 2, gradually blocking the air inlet 2 (partially closed) or completely covering the air inlet 2 (completely closed), thereby adjusting the air intake volume.

[0082] The connecting rod 51 can be designed as an adjustable length structure, such as a sleeve rod + locking bolt, to adapt to different sizes of air inlet holes 2; or a damping device can be added at the hinge of the connecting rod 51 and the furnace body to reduce the shaking of the connecting rod 51 when the push rod stops and improve the adjustment stability.

[0083] The linkage structure between the connecting rod 51 and the electric push rod occupies little space and only needs to be installed on the side of the furnace body, making it suitable for the compact design of the electric resistance furnace 8. By controlling the stroke of the push rod, the top plate 53 can achieve linear adjustment of the air inlet 2, and the response speed is fast.

[0084] In some embodiments, the top plate 53 may be adopted as follows: Figures 1 to 3 The structure shown is described in the following document. Figures 1 to 3 The top plate 53 is provided with a second fireproof partition 531 on the side that is connected to the air inlet 2.

[0085] When the second electric push rod 52 drives the connecting rod 51 to rotate, the second fireproof partition 531 is adapted to partially block the air inlet 2 or completely close the air inlet 2.

[0086] A second fireproof baffle 531 is provided on the side of the top plate 53 facing the air inlet 2. When the top plate 53 rotates to block the air inlet 2, the fireproof baffle directly covers the air inlet end of the air inlet 2 (partially or completely closed) to prevent the high-temperature airflow in the furnace from overflowing through the air inlet 2 and avoid causing a safety accident.

[0087] The second fireproof partition 531 can be designed as a strip that matches the shape of the air inlet 2 to improve the sealing performance when closed; or an elastic sealing gasket (such as high-temperature resistant silicone rubber) can be added to the edge of the partition to reduce the amount of air leakage when partially closed.

[0088] Even if an accidental fire occurs inside the furnace, it can prevent the flame from leaking out of the air inlet 2; at the same time, when the resistance furnace 8 is heating up, the insulation of the second fireproof partition 531, which completely seals the air inlet 2, can reduce the direct heat exchange between the external cold air and the furnace body, and reduce the heat loss of the furnace body.

[0089] In some embodiments, the temperature control component described above may employ, for example... Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The temperature control component consists of multiple temperature sensors 3 spaced apart along the axial direction of the resistance furnace 8, and each of the multiple temperature sensors 3 corresponds to a set of heat dissipation spaces to monitor the temperature of the corresponding heat dissipation spaces.

[0090] Multiple temperature sensors 3 are spaced apart along the furnace body axially, with each sensor corresponding to a set of heat dissipation spaces. They monitor the temperature of the corresponding area in real time and provide feedback signals. Non-contact temperature sensors 3 (such as infrared thermometers) can be used instead of contact sensors to avoid damage to the sensors themselves due to high temperatures; alternatively, one temperature sensor 3 can be installed on each of the upper and lower sides of each set of heat dissipation spaces to determine whether the airflow is abnormal. For example, if the air inlet 2 is blocked, causing a decrease in the temperature difference between the two temperature sensors 3 on the upper and lower sides, it will remind the staff to clean the air inlet 2 in a timely manner.

[0091] In some embodiments, the above-described heat dissipation system may employ, for example... Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The cooling system also includes a controller 7.

[0092] The controller 7 is mounted on the resistance furnace 8; the signal input terminal of the controller 7 is electrically connected to multiple temperature sensors 3 to receive the monitoring values ​​of each temperature sensor 3; the controller 7 has multiple signal output terminals, each of which corresponds to multiple heat dissipation spaces, and each signal output terminal is electrically connected to the upper adjustment mechanism 4 and the lower adjustment mechanism 5 in the corresponding heat dissipation space to adjust the heat dissipation airflow in each heat dissipation space.

[0093] After receiving the monitoring data from all temperature sensors 3, the controller 7 analyzes whether the temperature of each heat dissipation space meets the standard according to the preset logic. If the temperature of a certain group exceeds the standard, the controller 7 sends a control signal to the corresponding upper adjustment mechanism 4 (first electric push rod 42) or lower adjustment mechanism 5 (second electric push rod 52) to adjust the opening of the exhaust port 1 or the air inlet 2 until the temperature drops to the set range.

[0094] The controller 7 can integrate a wireless communication module to upload temperature data and adjustment status to the cloud for remote monitoring, such as viewing the furnace operation status via a mobile APP; or add a self-learning function to optimize the adjustment logic based on historical data to adapt to the heat dissipation requirements of different processes (such as annealing and quenching).

[0095] The zone linkage control of controller 7 realizes a closed-loop system of "monitoring-analysis-adjustment". Compared with manual adjustment, such as manually opening and closing valves, it has a faster response speed and can run continuously for 24 hours, which greatly improves the automation level and production efficiency of resistance furnace 8.

[0096] The technical solution adopted in this application also provides a resistance furnace, including the heat dissipation system proposed in any of the foregoing claims.

[0097] The beneficial effects of the resistance furnace provided in this embodiment are the same as those of the aforementioned heat dissipation system, and will not be repeated here.

[0098] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A heat dissipation system for a resistance furnace employing a horizontal columnar structure, characterized in that, include: Multiple exhaust vents are provided on the upper side of the resistance furnace and arranged along the axial direction of the furnace. Multiple air inlets are provided on the lower side of the electric resistance furnace, each air inlet having at least one corresponding exhaust port to allow the incoming gas to propagate to the corresponding exhaust port, forming at least one stream of heat dissipation airflow, and multiple sets of heat dissipation spaces spaced apart along the axial direction of the electric resistance furnace; and Temperature control components are used to monitor the temperature of each group of heat dissipation spaces; The exhaust port is connected to an upper adjustment mechanism for controlling its exhaust efficiency, and the air inlet is connected to a lower adjustment mechanism for controlling its ventilation efficiency. The temperature control component is also used to control any one of the upper or lower adjustment mechanisms to change the corresponding heat dissipation airflow.

2. The heat dissipation system as described in claim 1, characterized in that, The heat dissipation system also includes: Multiple exhaust pipes are installed on the upper side of the electric resistance furnace and are connected to the multiple exhaust holes one by one. The corresponding exhaust pipes are coaxially arranged with the exhaust holes. The upper adjustment mechanism is used to close part or all of the cavity of the exhaust pipe in order to adjust the exhaust efficiency of the exhaust port.

3. The heat dissipation system as described in claim 2, characterized in that, The upper adjustment mechanism includes: A cover plate is disposed at the outlet of the exhaust pipe, the cover plate being hinged to the exhaust pipe, and the hinge axis of the cover plate being perpendicular to the axis of the exhaust pipe; when the cover plate rotates about its hinge axis, the cover plate is adapted to close the cavity of the exhaust pipe; and A first electric push rod is disposed on the upper side of the resistance furnace, and the power output end of the first electric push rod is hinged to the cover plate; the hinge axis of the power output end of the first electric push rod is parallel to the hinge axis of the cover plate. When the power output end of the first electric push rod extends or retracts, the first electric push rod is adapted to drive the cover plate to rotate, so that the cover plate covers part of the exhaust pipe cavity or closes the entire exhaust pipe cavity.

4. The heat dissipation system as described in claim 3, characterized in that, The cover plate is provided with a first fireproof partition on the side that is connected to the exhaust outlet end of the exhaust pipe. When the first electric push rod drives the cover plate to rotate, the first fireproof partition is adapted to block part of the exhaust pipe cavity or close the exhaust pipe cavity.

5. The heat dissipation system as described in claim 1, characterized in that, The air inlet has a strip-shaped structure, and the length direction of the air inlet is parallel to the axis of the resistance furnace; moreover, multiple air inlets are arranged side by side in the horizontal direction, and the arrangement direction of multiple air inlets is perpendicular to the axis of the resistance furnace, and the axis of each air inlet is parallel to the vertical direction.

6. The heat dissipation system as described in claim 5, characterized in that, The lower adjustment mechanism includes: A connecting rod is hinged to the side wall of the resistance furnace, and the hinge axis of the connecting rod is parallel to the axis of the resistance furnace; a top plate is provided at one end of the connecting rod, and the top plate is adapted to close the air inlet when the connecting rod rotates about its hinge axis; and The second electric push rod is disposed on the side of the resistance furnace, and the power output end of the second electric push rod is hinged to the other end of the connecting rod, and the hinge axis of the power output end of the second electric push rod is parallel to the hinge axis of the connecting rod. When the power output end of the second electric push rod extends or retracts, the second electric push rod is adapted to drive the connecting rod to rotate, so that the top plate partially blocks the air inlet or completely closes the air inlet.

7. The heat dissipation system as described in claim 6, characterized in that, The top plate is provided with a second fireproof partition on the side that is connected to the air inlet end of the air inlet hole; When the second electric push rod drives the connecting rod to rotate, the second fireproof partition is adapted to partially block the air inlet or completely close the air inlet.

8. The heat dissipation system as described in claim 1, characterized in that, The temperature control component consists of multiple temperature sensors spaced apart along the axial direction of the resistance furnace, and each of the multiple temperature sensors corresponds one-to-one with a set of heat dissipation spaces to monitor the temperature of the corresponding heat dissipation space.

9. The heat dissipation system as described in claim 8, characterized in that, The heat dissipation system also includes: A controller is installed on the resistance furnace; the signal input terminal of the controller is electrically connected to multiple temperature sensors to receive the monitoring values ​​of each temperature sensor; the controller has multiple signal output terminals, each of which corresponds to multiple sets of heat dissipation spaces, and each signal output terminal is electrically connected to the upper adjustment mechanism and the lower adjustment mechanism in the corresponding heat dissipation space to adjust the heat dissipation airflow in each set of heat dissipation spaces.

10. A resistance furnace, characterized in that, It includes a furnace body with a horizontal columnar structure and a heat dissipation system as described in any one of claims 1-9.

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