A heat exchange mechanism for local annealing of an electric heating tube

Abstract

This application relates to the technical field of partial annealing equipment for electric heating tubes, and discloses a heat exchange mechanism for partial annealing of electric heating tubes, including four clamping frames, each consisting of two fixed clamping jaws and two movable clamping jaws. This heat exchange mechanism for partial annealing of electric heating tubes uses the cooperation of the movable and fixed clamping jaws of the clamping frames to clamp the location of the electric heating tube containing electronic components such as fuses. A circulating water inlet pipe and a circulating water outlet pipe allow the heat exchange medium to flow through the heat exchange chamber. Heat exchange plates and a heat exchange sleeve cool the clamped area of ​​the electric heating tube, achieving heat exchange and cooling of the location of the electric heating tube containing electronic components such as fuses during heating and annealing. This maintains the normal temperature of the location of the electric heating tube's fuses and other electronic components during heating and annealing, preventing high-temperature burnout of the fuses and other electronic components, and ensuring a high yield rate for the heated and annealed electric heating tubes.

Description

Technical Field

[0001] This application relates to the technical field of partial annealing equipment for electric heating tubes, specifically a heat exchange mechanism for partial annealing of electric heating tubes. Background Technology

[0002] As a highly efficient electrothermal conversion element, electric heating tubes are widely used in many industrial fields and civilian equipment, such as water heaters and ovens in the home appliance industry, and plastic processing machinery and mold heating equipment in the industrial field. During the production and manufacturing process of electric heating tubes, they need to undergo heating and annealing treatment to eliminate the internal stress generated during the production process. This is to prevent the existence of internal stress from causing the electric heating tube to break during the bending and shaping process according to the usage requirements. During operation, the clamping mechanism at both ends of the electric heating tube is energized, allowing the current to flow through the electric heating tube. The heating effect of the current causes the electric heating tube to reach the high temperature of the annealing temperature.

[0003] Currently, during the heating and annealing of electric heating tubes, the overall high temperature of the heating tube can cause electronic components such as fuses at the end of the heating tube to burn out, resulting in the heating tube becoming unusable and affecting the yield rate of annealed electric heating tubes. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a heat exchange mechanism for partial annealing of electric heating tubes. This mechanism allows for heat exchange and cooling of the areas on the electric heating tube containing electronic components such as fuses during the annealing process. This maintains the fuses and other electronic components at normal temperatures, preventing them from burning out due to high temperatures. This ensures a high yield rate for the annealed electric heating tubes. It also solves the problem that current annealing processes often result in high temperatures causing fuses and other electronic components at the ends of the electric heating tube to burn out, rendering the heating tube unusable and affecting the yield rate.

[0005] To achieve the aforementioned goal of heat exchange and cooling of the locations of electronic components such as fuses on the heating element during heating and annealing, ensuring that these components maintain normal temperatures and preventing overheating and burnout, thus guaranteeing a high yield rate for the heating and annealing process, this application provides the following technical solution: A heat exchange mechanism for localized annealing of an electric heating element, comprising four clamping frames. Each clamping frame consists of two fixed jaws and two movable jaws, symmetrically arranged in pairs. The bottom of the fixed jaws is fixed to the top of a support frame via a fixing block. The movable jaws are located at one end of an electric push rod, and the electric push rod is connected to... A fixing plate is set on the top of the support frame. A heat exchange sleeve is set on one side of the clamping frame. The size of the heat exchange sleeve is adapted to the size of the electric heating tube. A baffle is set on the inner wall of the clamping frame. A heat exchange cavity is formed between the baffle and the end of the inner wall of the clamping frame near the heat exchange sleeve. Multiple heat exchange plates are set on one side of the heat exchange sleeve. The ends of the multiple heat exchange plates away from the heat exchange sleeve extend through one end of the clamping frame into the interior of the heat exchange cavity. Two sets of water supply components are connected to both sides of the clamping frame. The two sets of water supply components on both sides of the clamping frame are respectively connected to a circulating water inlet pipe and a circulating water outlet pipe. The ends of the circulating water inlet pipe and the circulating water outlet pipe away from the water supply components are connected to the refrigeration mechanism. The water supply component includes a second distribution box. The circulating water inlet pipe and the circulating water outlet pipe are respectively set on one side of the corresponding second distribution box.

[0006] The above solution utilizes the interlocking motion of the clamping frame's moving and fixed jaws to hold the heating element at the location where electronic components such as fuses are located. A circulating water inlet pipe and outlet pipe allow the heat exchange medium to flow through the heat exchange chamber. Heat exchange plates and a heat exchange sleeve then work together to cool the clamped area of ​​the heating element. This achieves the goal of cooling the area containing fuses and other electronic components during the heating and annealing process, maintaining the fuses and other electronic components at a normal temperature. This prevents the fuses and other electronic components from burning out due to high temperatures, thus ensuring a high yield rate for the heated and annealed heating element.

[0007] Furthermore, the heat exchange cavity is provided with multiple partition plates, which divide the heat exchange cavity into multiple partition plates, and the spaces divided by the multiple partition plates correspond to multiple heat exchange plates.

[0008] Through the above scheme, the partition plate divides the heat exchange cavity into multiple relatively independent spaces, and each space corresponds to a corresponding heat exchange plate. This allows the heat exchange medium to flow more evenly in each space, enabling independent heat exchange and cooling of the corresponding heat exchange plate. This avoids uneven temperature distribution of the heat exchange medium in the heat exchange cavity, thereby ensuring that each heat exchange plate can fully exchange heat with the heat exchange medium and ensuring the efficiency of heat exchange and cooling of the heat exchange jacket through multiple heat exchange plates.

[0009] Furthermore, the water supply assembly includes a first diversion box, one side of which is connected to the interior of the heat exchange chamber via multiple connecting pipes. The positions of the multiple connecting pipes on one side of the first diversion box on the clamping frame correspond to the spaces separated by multiple partition plates in the heat exchange chamber. The side of the first diversion box away from the clamping frame is connected to one end of the side of the second diversion box via connecting pipes.

[0010] Through the above scheme, the first distribution box plays the role of distributing and collecting heat exchange medium. One side of it is connected to different spaces separated by partition plates in the heat exchange chamber through multiple connecting pipes, and the positions of the connecting pipes correspond to the spaces separated by the partition plates. This ensures that the heat exchange medium can enter each space separated by the partition plates, so as to distribute the heat exchange medium evenly and ensure independent delivery and circulation of heat exchange medium to multiple spaces. The second distribution box is connected to the first distribution box through connecting pipes, and the second distribution box can deliver and collect the circulating medium from the first distribution box.

[0011] Furthermore, the inner wall of the clamping frame is provided with multiple baffles, which divide the inner wall of the clamping frame into heat exchange channels.

[0012] Through the above scheme, the heat exchange channel allows the heat exchange medium to circulate within the clamping frame, enabling the heat exchange medium to perform overall heat exchange on the clamping frame. The auxiliary heat exchange jacket further improves the cooling and heat exchange efficiency of the electric heating tube clamping part.

[0013] Furthermore, the heat exchange channels are distributed in a serpentine pattern inside the clamping frame.

[0014] The above scheme greatly increases the length of the flow path of the heat exchange medium inside the clamping frame by the serpentine distribution of the heat exchange channels, thereby improving the efficiency of cooling and heat exchange of the clamping frame through the heat exchange channels.

[0015] Furthermore, one end of each side of the heat exchange channel is connected to the end of the two second distribution boxes away from the first distribution box via connecting pipes.

[0016] The above scheme allows for the circulation of the heat exchange medium within the clamping frame by using two second distribution boxes on both sides of the clamping frame in conjunction with the circulating water inlet pipe and the circulating water outlet pipe.

[0017] Furthermore, the second diversion box corresponding to the circulating water inlet pipe is connected to the end of the heat exchange channel near the heat exchange jacket via a connecting pipe, and the second diversion box corresponding to the circulating water outlet pipe is connected to the end of the heat exchange channel away from the heat exchange jacket via a connecting pipe.

[0018] The above scheme allows the heat exchange medium to flow preferentially into the end of the heat exchange channel closest to the heat exchange jacket. This allows the heat exchange medium that has not yet been heated to preferentially exchange heat and cool down the end of the clamping frame closest to the heat exchange jacket, thus ensuring the temperature control of the end of the clamping frame that holds the heating tube and maximizing the heat exchange effect of the heat exchange medium.

[0019] Furthermore, the circulating water inlet pipe and circulating water outlet pipe corresponding to the moving gripper of the clamping frame are both made of deformable flexible hoses.

[0020] The above solution avoids the influence of the circulating water inlet and outlet pipes when the electric push rod drives the moving jaws of the clamping frame to move. This allows the circulating water inlet and outlet pipes to bend and deform as the moving jaws of the clamping frame move, preventing the corresponding circulating water inlet and outlet pipes from breaking or being damaged due to the movement of the moving jaws of the clamping frame.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This heat exchange mechanism for partial annealing of electric heating tubes uses the interaction of movable and fixed clamps of a clamping frame to hold the electric heating tube at the location where electronic components such as fuses are located. A circulating water inlet pipe and a circulating water outlet pipe allow the heat exchange medium to flow through the heat exchange chamber. Heat exchange plates and a heat exchange sleeve cool the clamped area of ​​the electric heating tube. This achieves heat exchange and cooling of the location of electronic components such as fuses on the electric heating tube during heating and annealing, maintaining the normal temperature of these components and preventing them from burning out due to high temperatures. This ensures a high yield rate for the heated and annealed electric heating tubes. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of this application;

[0024] Figure 2 This is a top view of the structure of this application;

[0025] Figure 3 This is a schematic diagram of the structure on the right side of this application;

[0026] Figure 4 This is a side sectional view of the clamping frame of this application;

[0027] Figure 5This is an exploded view of a partial structure of this application;

[0028] Figure 6 This is a three-dimensional cross-sectional structural diagram of the clamping frame of this application.

[0029] In the picture:

[0030] 1. Clamping frame; 2. Support frame; 3. Electric push rod; 4. Heat exchange jacket; 5. Heat exchange plate; 6. Baffle; 7. Divider plate; 8. Heat exchange chamber; 9. Water supply assembly; 901. First diversion box; 902. Second diversion box; 10. Baffle plate; 11. Heat exchange channel; 12. Circulating water inlet pipe; 13. Circulating water outlet pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 4 and Figure 6 This embodiment provides a heat exchange mechanism for partial annealing of an electric heating tube, comprising four clamping frames 1. Each clamping frame 1 has two fixed jaws and two movable jaws, arranged symmetrically in pairs. The bottom of the fixed jaws of the clamping frames 1 is fixed to the top of a support frame 2 via a fixing block. The movable jaws of the clamping frames 1 are located at one end of an electric push rod 3, and one end of the electric push rod 3 is fixed to the top of the support frame 2 via a fixing plate. A heat exchange sleeve 4 is provided on one side of the clamping frame 1, the size of which is compatible with the size of the electric heating tube. A baffle 6 is provided on the inner wall of the clamping frame 1, the baffle 6 being connected to the clamping... A heat exchange cavity 8 is formed between the inner wall of the frame 1 and the end of the heat exchange jacket 4. A plurality of heat exchange plates 5 are provided on one side of the heat exchange jacket 4. The ends of the plurality of heat exchange plates 5 away from the heat exchange jacket 4 all pass through one end of the clamping frame 1 and extend into the interior of the heat exchange cavity 8. Two sets of water supply components 9 are connected to both sides of the clamping frame 1. The two sets of water supply components 9 on both sides of the clamping frame 1 are respectively connected to a circulating water inlet pipe 12 and a circulating water outlet pipe 13. The ends of the circulating water inlet pipe 12 and the circulating water outlet pipe 13 away from the water supply components 9 are connected to the refrigeration mechanism. The water supply component 9 includes a second distribution box 902. The circulating water inlet pipe 12 and the circulating water outlet pipe 13 are respectively arranged on one side of the corresponding second distribution box 902.

[0033] Please see Figure 4 and Figure 6Multiple partition plates 7 are provided inside the heat exchange chamber 8, which divide the heat exchange chamber 8 into multiple partition plates 7. The spaces divided by the partition plates 7 correspond to the multiple heat exchange plates 5. The partition plates 7 divide the heat exchange chamber 8 into multiple relatively independent spaces, and each space corresponds to a corresponding heat exchange plate 5. This allows the heat exchange medium to flow more evenly in each space, and allows the corresponding heat exchange plate 5 to perform independent heat exchange and cooling. This avoids uneven temperature distribution of the heat exchange medium in the heat exchange chamber 8, thereby ensuring that each heat exchange plate 5 can fully exchange heat with the heat exchange medium and ensuring the efficiency of heat exchange and cooling of the heat exchange jacket 4 through multiple heat exchange plates 5.

[0034] Please see Figure 4 , Figure 5 and Figure 6 The water supply component 9 includes a first diversion box 901. One side of the first diversion box 901 is connected to the interior of the heat exchange chamber 8 via multiple connecting pipes. The positions of the multiple connecting pipes on the side of the first diversion box 901 on the clamping frame 1 correspond to the spaces separated by multiple partition plates 7 in the heat exchange chamber 8. The side of the first diversion box 901 away from the clamping frame 1 is connected to one end of the side of the second diversion box 902 via connecting pipes. The first diversion box 901 plays the role of distributing and collecting heat exchange medium. One side of it is connected to different spaces separated by partition plates 7 in the heat exchange chamber 8 via multiple connecting pipes, and the positions of the connecting pipes correspond to the spaces separated by partition plates 7. This ensures that the heat exchange medium can enter each space separated by partition plates 7 separately, so as to evenly distribute the heat exchange medium and ensure independent delivery and circulation of heat exchange medium to multiple spaces. The second diversion box 902 is connected to the first diversion box 901 via connecting pipes, and can deliver and collect circulating medium from the first diversion box 901 through the second diversion box 902.

[0035] Please see Figure 4 and Figure 6 The inner wall of the clamping frame 1 is provided with multiple baffles 10, which divide the inner wall of the clamping frame 1 into heat exchange channels 11. The heat exchange channels 11 allow the heat exchange medium to circulate within the clamping frame 1, enabling the heat exchange medium to perform overall heat exchange on the clamping frame 1. The auxiliary heat exchange sleeve 4 further improves the cooling and heat exchange efficiency of the electric heating tube clamping part.

[0036] Please see Figure 4 The heat exchange channels 11 are distributed in a serpentine pattern inside the clamping frame 1. The serpentine distribution of the heat exchange channels 11 greatly increases the length of the flow path of the heat exchange medium inside the clamping frame 1, thereby improving the efficiency of cooling and heat exchange of the clamping frame 1 through the heat exchange channels 11.

[0037] Please see Figure 2 , Figure 4 and Figure 5The two opposite ends of the heat exchange channel 11 are connected to the ends of the two second distribution boxes 902 away from the first distribution box 901 through connecting pipes. The heat exchange medium can circulate inside the clamping frame 1 by the two second distribution boxes 902 on both sides of the clamping frame 1 in conjunction with the circulating water inlet pipe 12 and the circulating water outlet pipe 13.

[0038] Please see Figure 2 , Figure 3 and Figure 5 The second diversion box 902 corresponding to the circulating water inlet pipe 12 is connected to the end of the heat exchange channel 11 near the heat exchange jacket 4 through a connecting pipe, and the second diversion box 902 corresponding to the circulating water outlet pipe 13 is connected to the end of the heat exchange channel 11 away from the heat exchange jacket 4 through a connecting pipe, so that the heat exchange medium can flow into the end of the heat exchange channel 11 near the heat exchange jacket 4 first, and thus the heat exchange medium that has not been heated by heat exchange can preferentially heat exchange and cool the end of the clamping frame 1 near the heat exchange jacket 4 through the end of the heat exchange channel 11 near the heat exchange jacket 4, ensuring the temperature control of the end of the clamping frame 1 that holds the electric heating tube, thereby maximizing the heat exchange effect of the heat exchange medium.

[0039] Please see Figure 1 , Figure 2 and Figure 3 The circulating water inlet pipe 12 and circulating water outlet pipe 13 corresponding to the moving jaw of the clamping frame 1 are both deformable flexible hoses. This avoids the influence of the circulating water inlet pipe 12 and circulating water outlet pipe 13 when the electric push rod 3 moves the moving jaw of the clamping frame 1. This allows the circulating water inlet pipe 12 and circulating water outlet pipe 13 to bend and deform as the moving jaw of the clamping frame 1 moves, preventing the corresponding circulating water inlet pipe 12 and circulating water outlet pipe 13 from breaking or being damaged due to the movement of the moving jaw of the clamping frame 1.

[0040] This embodiment provides a heat exchange mechanism for partial annealing of an electric heating tube. The moving and fixed jaws of the clamping frame 1 work together to clamp the electric heating tube at the location where electronic components such as fuses are located. A circulating water inlet pipe 12 and a circulating water outlet pipe 13 allow the heat exchange medium to flow through the heat exchange chamber 8. Heat exchange plates 5 and a heat exchange sleeve 4 cool the clamped area of ​​the electric heating tube. This achieves heat exchange and cooling of the location of the electric heating tube with fuses and other electronic components during heating and annealing, maintaining the fuse and other electronic components at a normal temperature during heating and annealing. This prevents the fuses and other electronic components from burning out due to high temperatures, ensuring a high yield rate for the heated and annealed electric heating tube.

[0041] The working principle of the above embodiment is as follows: The electric push rod 3 operates, pushing the moving jaws of the clamping frame 1 towards the fixed jaws of the clamping frame 1. This clamps the two ends of the heating tube, which is equipped with electronic components such as fuses, between the moving and fixed jaws of the two sets of clamping frames 1, ensuring stable clamping of the heating tube by the heat exchange sleeves 4 corresponding to the four clamping frames 1. By energizing the clamping frames 1 at both ends of the heating tube, the heating tube is heated. A low-temperature heat exchange medium is supplied to the circulating water inlet pipe 12 through the refrigeration mechanism. This low-temperature heat exchange medium flows through the corresponding second distribution box 902 into the first distribution box 901 and the heat exchange channel 11, respectively. The heat exchange medium in the first distribution box 901 flows into multiple heat exchange chambers 8 separated by the partition plate 7. Within the independent space, multiple heat exchange plates 5 are in contact with each other, and heat exchange and cooling are performed on the multiple heat exchange plates 5 respectively. The heat exchange plates 5 perform heat exchange and cooling on the corresponding heat exchange jacket 4, so that the heat exchange jacket 4 performs heat exchange and cooling on the clamped part of the electric heating tube. The heat exchange medium that has undergone heat exchange in the heat exchange chamber 8 returns to the refrigeration mechanism for cooling through the water supply component 9 corresponding to the circulating water outlet pipe 13. The second diversion box 902 corresponding to the circulating water inlet pipe 12 delivers heat exchange medium to the end of the heat exchange channel 11 near the heat exchange jacket 4, so that the heat exchange medium flows through the heat exchange channel 11 and performs overall heat exchange and cooling on the clamping frame 1. The heat exchange medium that has undergone heat exchange in the heat exchange channel 11 returns to the refrigeration mechanism for cooling through the water supply component 9 corresponding to the circulating water outlet pipe 13.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat exchange mechanism for partial annealing of an electric heating tube, comprising a clamping frame (1), characterized in that: The number of clamping frames (1) is four. Each clamping frame (1) consists of two fixed jaws and two movable jaws. The two fixed jaws and two movable jaws of the four clamping frames (1) are arranged symmetrically in pairs. The bottom of the fixed jaws of the clamping frames (1) is fixed to the top of the support frame (2) by a fixing block. The movable jaws of the clamping frames (1) are located at one end of an electric push rod (3). One end of the electric push rod (3) is fixed to the top of the support frame (2) by a fixing plate. A heat exchange sleeve (4) is provided on one side of the clamping frame (1). The size of the heat exchange sleeve (4) is adapted to the size of the electric heating tube. A baffle (6) is provided on the inner wall of the clamping frame (1). The baffle (6) is positioned close to the end of the inner wall of the clamping frame (1) near the heat exchange sleeve (4). A heat exchange chamber (8) is formed. A plurality of heat exchange plates (5) are provided on one side of the heat exchange sleeve (4). The ends of the plurality of heat exchange plates (5) away from the heat exchange sleeve (4) all extend through one end of the clamping frame (1) to the interior of the heat exchange chamber (8). Two sets of water supply components (9) are connected to both sides of the clamping frame (1). The two sets of water supply components (9) on both sides of the clamping frame (1) are respectively connected to a circulating water inlet pipe (12) and a circulating water outlet pipe (13). The ends of the circulating water inlet pipe (12) and the circulating water outlet pipe (13) away from the water supply components (9) are connected to the refrigeration mechanism. The water supply component (9) includes a second distribution box (902). The circulating water inlet pipe (12) and the circulating water outlet pipe (13) are respectively arranged on one side of the corresponding second distribution box (902).

2. The heat exchange mechanism for partial annealing of an electric heating tube according to claim 1, characterized in that: The heat exchange cavity (8) is provided with multiple partition plates (7), which divide the heat exchange cavity (8) into multiple partition plates (7), and the spaces divided by the multiple partition plates (7) correspond to the multiple heat exchange plates (5).

3. A heat exchange mechanism for partial annealing of an electric heating tube according to claim 2, characterized in that: The water supply assembly (9) includes a first diversion box (901). One side of the first diversion box (901) is connected to the interior of the heat exchange chamber (8) through multiple connecting pipes. The positions of the multiple connecting pipes on the side of the first diversion box (901) on the side of the clamping frame (1) correspond to the spaces separated by multiple partition plates (7) in the heat exchange chamber (8). The side of the first diversion box (901) away from the clamping frame (1) is connected to one end of the side of the second diversion box (902) through a connecting pipe.

4. A heat exchange mechanism for partial annealing of an electric heating tube according to claim 1, characterized in that: The inner wall of the clamping frame (1) is provided with a plurality of baffles (10), which divide the inner wall of the clamping frame (1) into heat exchange channels (11).

5. A heat exchange mechanism for partial annealing of an electric heating tube according to claim 4, characterized in that: The heat exchange channels (11) are distributed in a serpentine pattern inside the clamping frame (1).

6. A heat exchange mechanism for partial annealing of an electric heating tube according to claim 4, characterized in that: The heat exchange channel (11) is connected to the opposite ends of the two second distribution boxes (902) on one side away from the first distribution box (901) via connecting pipes.

7. A heat exchange mechanism for partial annealing of an electric heating tube according to claim 1, characterized in that: The second diversion box (902) corresponding to the circulating water inlet pipe (12) is connected to the end of the heat exchange channel (11) near the heat exchange jacket (4) through a connecting pipe, and the second diversion box (902) corresponding to the circulating water outlet pipe (13) is connected to the end of the heat exchange channel (11) away from the heat exchange jacket (4) through a connecting pipe.

8. A heat exchange mechanism for partial annealing of an electric heating tube according to claim 1, characterized in that: The circulating water inlet pipe (12) and circulating water outlet pipe (13) corresponding to the moving jaws of the clamping frame (1) are both deformable flexible hoses.

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