Apparatus and method for preventing collapse during temperature rise of a platinum channel cooling flat tube

Abstract

The application discloses a device and method for preventing collapse of a platinum channel cooling flat tube in a heating process, and belongs to the technical field of substrate glass manufacturing. The device comprises a pulling structure, the outside of the cooling flat tube is wrapped with a heater module, the heater module is provided with a plurality of heater modules, a butt joint gap is arranged between every two butt-jointed heater modules, the pulling structure is arranged on the outer surface of the cooling flat tube, the pulling structure comprises a pulling lug, the pulling lug is coincident with the position of the butt joint gap, the protruding end of the pulling lug protrudes out of the butt joint gap, the protruding end is connected with the end of the heater module, and the height of the pulling lug is equal to the distance between the cooling flat tube and the heater module. The application mainly improves the reliability of the platinum channel cooling flat tube, the special pulling structure is designed on the upper surface of the cooling flat tube, a matching mounting method is combined, the stability of the cross-section structure of the cooling flat tube in the heating process can be realized, and the deformation and collapse of the cooling flat tube in the heating process are prevented.

Description

Technical Field

[0001] This invention belongs to the field of substrate glass manufacturing technology, specifically relating to a device and method for preventing the collapse of a platinum channel cooling flat tube during the heating process. Background Technology

[0002] The platinum channel is one of the core pieces of equipment in the substrate glass manufacturing process, and the cooling section is the most challenging and risky component during its fabrication and heating, primarily due to its unique structural design. The cooling section's main function is to rapidly and uniformly cool the stirred and homogenized molten glass, reducing its temperature from approximately 1400°C at the inlet to around 1220°C at the outlet, thus meeting the glass temperature requirements for subsequent forming processes. Given the limited space and extremely high manufacturing costs of the channel, achieving the most uniform heat dissipation possible within the shortest possible path is crucial, and a flat tube structure effectively fulfills this requirement.

[0003] Compared to traditional round tubes, the glass in the central region of the flat tube is closer to the surface, resulting in a heat dissipation efficiency several times higher. Combined with a refractory structure using materials with varying thermal conductivity at different parts of the periphery, efficient and uniform heat dissipation can be achieved. Because flat tubes are made of platinum and typically have a wall thickness between 1.0mm and 1.5mm, and a certain proportion of rhodium (Rh) is added to the material to meet structural strength and reliability requirements, the Rh proportion is constrained by cost, ductility, and expansion management, allowing only a certain degree of reinforcement and not complete strength assurance.

[0004] The substrate glass has a dedicated heating stage, which uses a specific heating rate curve to allow platinum and refractory materials to gradually adapt to the high-temperature environment. During this process, the amount of raw glass material fed in the front end is increased simultaneously to gradually raise the liquid level of the molten glass inside, ultimately filling the platinum channel with molten glass. However, during the process of heating from room temperature to 1300°C, the cooling section, located at the rear of the channel, cannot be completely filled by molten glass. Therefore, during the temperature rise, the flat tube structure of the cooling section, lacking the support of the internal molten glass, cannot fully guarantee stability in the empty tube state relying solely on its own structural strength. Consequently, collapse and deformation of the upper surface of the flat tube often occur during the heating stage. This is mainly detected by abnormal readings of the thermocouples welded to the upper surface, indicating that the thermocouple wires have been subjected to tensile stress and have failed. Therefore, addressing the deformation problem of the cooling flat tube has always been one of the main challenges during the heating stage. Existing technologies have made several improvements in this process, including increasing the number of welds to improve structural stability and improving manufacturing processes to prevent initial collapse, but none of these have completely solved the problem.

[0005] Therefore, the current problem to be solved is the inability to prevent the deformation and collapse of the cooling flat tube during the heating process. Summary of the Invention

[0006] The purpose of this invention is to overcome the problem of deformation and collapse of cooling flat tubes during the heating process, and to provide a device and method for preventing the collapse of platinum channel cooling flat tubes during the heating process. The collapse problem is solved by structural assistance, with a clear point of action and direct effect, and has a good positive effect on suppressing the collapse of flat tubes during the heating process.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A device for preventing collapse of a platinum channel cooling flat tube during heating includes a tensioning structure. The cooling flat tube is externally wrapped with heater modules. Several heater modules are provided, with a joint gap between every two mating heater modules. The tensioning structure is disposed on the outer surface of the cooling flat tube and includes tension ribs. The tension ribs are positioned coinciding with the joint gaps, with their extended ends extending out of the joint gaps and connected to the ends of the heater modules. The height of the tension ribs is equal to the distance between the cooling flat tube and the heater modules.

[0009] Furthermore, the traction structure also includes a traction base, which is connected to the upper surface of the cooling flat tube.

[0010] Furthermore, the traction substrate adopts a variable wall thickness structure, specifically, the variable wall thickness structure is thin at both sides and thick in the middle along the radial direction of the cooling flat tube.

[0011] Furthermore, the traction substrate is a rectangular platinum sheet, and the connection method adopts hot forging patch.

[0012] Furthermore, the traction lifting rod includes a welded base, an extension arm, and a traction hook. The welded base is welded to the traction base, the extension arm is set in the butt joint gap, and the end surface of the heater module is provided with a transverse through groove structure. The traction hook is suspended on the transverse through groove structure.

[0013] Furthermore, the width of the mating gap is greater than 20% of the width of the extension arm wall thickness, and the depth of the transverse through groove structure is 5mm-10mm.

[0014] Furthermore, the radial distribution of the tensioning ribs is the same as the radial distribution of the cross-section of the cooling flat tube.

[0015] Furthermore, the tensioning rib is made of a platinum-rhodium alloy, and the rhodium content of the platinum-rhodium alloy is 10%-20%.

[0016] Furthermore, a filler layer is provided between the cooling flat tube and the heater module.

[0017] A method for preventing the collapse of a platinum channel cooling flat tube during heating, utilizing the aforementioned device for preventing collapse during heating, includes the following steps: assembling a heater module, filling the cooling flat tube with powder, and simultaneously vibrating the cooling flat tube with a vibrator at an amplitude of <2mm; stopping the vibration after filling and starting to heat the platinum channel; and filling the joint gap with the protruding tension ribs after the platinum channel reaches 1300℃, using fine alumina powder with a particle size of 0.1mm as the filler.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] This invention utilizes a dedicated tension structure designed on the upper surface of the cooling flat tube. This tension structure includes tension ribs that coincide with the joint gap. The extended ends of the tension ribs extend beyond the joint gap between the two heater modules and are connected to the ends of the heater modules. This design ensures the stability of the cooling flat tube's cross-sectional structure during the heating process. By using structural assistance, the invention addresses the collapse problem, has a clear point of action, and provides direct results, preventing deformation and collapse of the cooling flat tube during the heating process.

[0020] In the device provided by this invention, the traction structure mainly adopts a radial hook form, which is welded to the body through the base, and the other end is hung in the groove of the heater brick. This allows the reaction force of the flat tube collapsing to be transferred to the upper heater brick, ensuring that the structure of the flat tube does not deform. For the installation process that matches this structure, it is necessary to adjust the filling material of the original fine slurry and change it to powder with a sintering temperature of about 1200℃ to avoid the traction structure being subjected to shear force in the streamline direction during the heating and expansion process. At the same time, after the expansion is completed, the joint gap between the heater bricks is filled with powder to ensure basic sealing.

[0021] The present invention uses a radially distributed tie rod with the same cross-section as the cooling flat tube, and can extend from the joint gap between two heater modules and be suspended in the end area of ​​the heater module. This solves the problem of the tie rod extending out of the heater module, and also solves the problem of shear force on the tie rod caused by the relative displacement between the expansion of platinum in the flow direction and the refractory material.

[0022] This invention sets a tension base between the tensioning rib and the cooling flat tube, which avoids the problem that the tensioning structure has a small tensioning point and is prone to localized tearing during the stress process.

[0023] The present invention employs a traction substrate that is thin at both sides and thick in the middle, which can effectively eliminate stress concentration problems that may be caused by local dimensional abrupt changes in thickness at both sides.

[0024] The transverse through-slot structure of this invention is used for suspending the tensioning rod, realizing the tension transfer of the tensioning rod from the inner platinum flat tube to the outer heater brick. Moreover, only a width greater than 20% of the wall thickness of the tensioning arm needs to be reserved between the front and rear heater bricks, which effectively solves the problem of internal and external transmission as well as the basic sealing problem of the structure.

[0025] The present invention designs the direction of the tensioning ribs to be radially distributed in the same direction as the cross-section of the cooling flat tube, which can withstand a certain relative displacement without causing significant shear stress at the root. In addition, to ensure that it is completely free from stress, it avoids local tearing problems.

[0026] The method provided by this invention is specifically designed to fill the joint gap where the tension rib 3 extends, using fine alumina powder with a particle size of 0.1mm to ensure the final sealing of the overall structure.

[0027] This invention can cope with the ever-increasing size of platinum and provide effective structural reliability assurance for designing platinum channel structures with larger extraction volumes. The solution has been implemented in the G8.5 project with significant results. The number of thermocouple failures at the top of the cooling flat tube during the heating process has been significantly reduced, indicating that the structural strength of the cooling flat tube has been significantly improved. Attached Figure Description

[0028] The accompanying drawings are provided to further understand the invention and constitute a part of this invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0029] Figure 1 This is a schematic diagram of the cross-sectional tension structure connection of the cooling flat tube of the present invention.

[0030] Figure 2 This is a schematic diagram of the overall structure of the cooling section of the present invention.

[0031] Figure 3 This is a detailed view of the tensioning ribs on the upper surface of the cooling flat tube of the present invention.

[0032] Figure 4 This is a schematic diagram illustrating the pulling principle of the top of the flat tube in this invention.

[0033] Figure 5 This is a diagram showing the overall traction layout of the cooling section of the present invention.

[0034] Among them, 1 is the cooling flat tube, 2 is the traction base, 3 is the traction lifting rod, 3-1 is the welding bottom, 3-2 is the extension arm, 3-3 is the traction hook, 4 is the heater module, 4-1 is the transverse through groove structure, and 5 is the filling layer. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] Example 1

[0038] like Figure 1 , Figure 2 and Figure 5 As shown, a device for preventing the collapse of a platinum channel cooling flat tube during heating includes a tensioning structure. The cooling flat tube 1 is wrapped with a heater module 4. Several heater modules 4 are provided, and a joint gap is provided between every two mating heater modules 4. The tensioning structure is provided on the outer surface of the cooling flat tube 1. The tensioning structure includes a tensioning rib 3. The tensioning rib 3 is aligned with the joint gap. The protruding end of the tensioning rib 3 extends out of the joint gap and is connected to the end of the heater module 4. The height of the tensioning rib 3 is equal to the distance between the cooling flat tube 1 and the heater module 4.

[0039] like Figure 1 and Figure 5 As shown, the traction structure also includes a traction base 2, which is connected to the upper surface of the cooling flat tube 1.

[0040] The traction substrate 2 adopts a variable wall thickness structure, specifically, the variable wall thickness structure is thin at both sides and thick in the middle along the radial direction of the cooling flat tube 1.

[0041] The traction substrate 2 is a rectangular platinum sheet, and the connection method is hot forging patching. Taking a rectangular platinum sheet with an original thickness of 1.5mm and a cooling flat tube 1 with a thickness of 1.0mm as an example, hot forging patching specifically refers to bonding the rectangular platinum sheet with an original thickness of 1.5mm to the upper surface of the cooling flat tube 1 with a thickness of 1.0mm. High-temperature forging is used to generate a certain bonding force between the edge of the rectangular platinum sheet and the cooling flat tube 1. At the same time, for the thicker middle area, a small amount of welding wire is added to the front and rear sides of the rectangular platinum sheet to weld the rectangular platinum sheet to the cooling flat tube 1.

[0042] Preferably, the size of the drawing substrate 2 is related to the size of the upper surface of the cooling flat tube. Taking a cooling flat tube 1 with a width of 600mm to 700mm as an example, the width of the drawing substrate 2 is generally about 100mm, and the width of the drawing substrate 2 in the glass flow direction is designed to be 50mm-80mm.

[0043] like Figure 3 and Figure 4 As shown, the traction lifting rod 3 includes a welded base 3-1, an extension arm 3-2, and a traction hook 3-3. The welded base 3-1 is completely welded to the traction base 2. The extension arm 3-2 is set in the butt joint gap. The upper surface of the end of the heater module 4 is provided with a transverse through groove structure 4-1. The traction hook 3-3 is suspended on the transverse through groove structure 4-1.

[0044] The width of the butt joint is greater than 20% of the width of the wall thickness of the cantilever 3-2, and the depth of the transverse through groove structure 4-1 is 5mm to 10mm.

[0045] Preferably, the length of the extender arm 3-2 is 70mm to 90mm, the width of the extender arm 3-2 is >15mm, and the wall thickness of the extender arm 3-2 is >1.0mm;

[0046] Preferably, the pull hook 3-3 adopts an arc-shaped hook or other shape transition, mainly as long as the end has a hook structure;

[0047] Preferably, the width of the transverse through-slot structure 4-1 is 5mm;

[0048] The radial distribution of the tensioning rod 3 is the same as the radial distribution of the cross section of the cooling flat tube 1.

[0049] The tensioning rod 3 is made of platinum-rhodium alloy, with a rhodium content of 10% to 20%.

[0050] A filling layer 5 is provided between the cooling flat tube 1 and the heater module 4.

[0051] Preferably, the tension structure is based on the current 3000mm-40mm length structure, and is generally distributed in 5 places. It can also be appropriately increased according to the needs and the number of joints between the heater bricks.

[0052] A method for preventing the collapse of a platinum channel cooling flat tube during heating, utilizing a device to prevent collapse during heating, includes the following steps: assembling a heater module 4, filling the cooling flat tube 1 with powder, preferably using a long material trough to fill the powder in the four directions of the cooling flat tube 1 (up, down, left, and right), while simultaneously using a vibrator to vibrate the cooling flat tube 1 with a vibration amplitude <2mm, stopping the vibration after filling and starting to heat the platinum channel, and after the platinum channel reaches 1300℃, filling the joint gap with the protruding tension ribs 3, using fine alumina powder with a particle size of 0.1mm.

[0053] This method replaces the traditional alumina fine slurry with alumina powder, and uses a segmented, step-by-step filling method to solve the problem of good flowability that powder cannot achieve.

[0054] Example 2

[0055] A device for preventing the collapse of a platinum channel cooling flat tube during heating, wherein the connection between the tensioning structure and the cooling flat tube 1 is as follows: Figure 1 As shown, from the cross-sectional direction, it includes a cooling flat tube 1, a tension base 2, and tension hangers 3. Considering the characteristics of the overall structure of the cooling section, namely, the cooling flat tube 1 has a heater brick structure on its exterior, such as... Figure 2 As shown, the heater modules 4 on the outside of the cooling flat tube 1 are multiple sets connected. Because the heater itself needs to maintain structural integrity—that is, the internal heating wires are evenly and equidistantly distributed—it is not possible to drill holes in the middle of the brick to disrupt the integrity of the heating wire layout. Therefore, the tie rods cannot be drilled through the main plane of the upper heater module 4. Thus, the distribution of the tie rods 3 needs to be considered. Some existing technologies have proposed different tie rod structures for the cooling flat tube 1, but none of them can solve the problem of the tie rods extending from the heater module 4, nor can they solve the problem of shear force on the tie rods caused by the relative displacement between the platinum flow direction expansion and the refractory material. The tie rods 3 of this invention adopt a radial distribution with the same cross-section as the cooling flat tube 1, and can extend from the joint gap between two heater modules 4, suspending at the end area of ​​the heater module 4, completely solving the above problems.

[0056] For the tensioned structure, the tensioning rod 3 should not be directly welded to the cooling flat tube 1 as much as possible. This is mainly because the tensioning stress point is small, making it prone to localized tensile cracking during stress. Therefore, setting a tensioning base 2 between the tensioning rod 3 and the cooling flat tube 1 can effectively solve this problem. To consider the connection method between the tensioning base 2 and the cooling flat tube 1 and to avoid localized stress concentration, a variable wall thickness structure is designed, such as... Figure 1As shown, in the cross-sectional direction, the tension substrate 2 adopts a form that is thin on both sides and thick in the middle, which can effectively eliminate the stress concentration problem that may be caused by the local dimensional change caused by the transition of thickness on both sides;

[0057] The connection between the traction substrate 2 and the cooling flat tube 1 is achieved through hot forging and bonding. This involves bonding a rectangular platinum sheet with an original thickness of 1.5mm to the upper surface of the flat tube 1 with a thickness of 1.0mm. High-temperature forging is used to create a certain bonding force between the edges and the flat tube 1. For the thicker middle area, a small amount of welding wire is added to the front and back sides to ensure the overall bonding between the traction substrate 2 and the upper surface of the cooling flat tube 1. Generally, different sizes of rectangular traction substrate 2 are selected according to the size of the upper surface of the cooling flat tube. Taking a cooling flat tube with a width of 600mm-700mm as an example, the width of the traction substrate 2 is generally about 100mm. The width of the traction substrate 2 in the glass flow direction is generally designed to be 50mm-80mm to ensure the traction effect for that area.

[0058] The specific structure of the tie rod 3 is as follows: Figure 3 As shown, it consists of a welded base 3-1, an extension arm 3-2, and a traction hook 3-3. The welded base 3-1 of the traction structure is connected to the lower traction base 2 by a complete weld, as shown. Figure 4 As shown, the length of the extender arm 3-2 is related to the thickness of the internal filling layer 5 and the external heater module 4. The current standard filling thickness is 15mm, and the thickness of the heater 4 is generally 50mm-70mm to ensure the basic structural strength of the refractory material. The width and thickness of the extender arm 3-2 determine the tensile load capacity, which is also related to the overall material of the tensioning rod 3. Since the cooling flat tube 1 is generally made of platinum-rhodium alloy with Rh content of 5% to 10%, while the tensioning rod 3 is generally designed to have 10% to 20%, the higher the Rh content, the greater the tensile strength of the material. Generally, under this material structure, a width > 15mm and a wall thickness > 1.0mm are sufficient to meet the load capacity requirements. The tension hook 3-3 adopts an arc-shaped hook or other shape transition, mainly with a hook structure at the end.

[0059] For the structure of the tensioning rod 3, such as Figure 4 As shown, a transverse through groove structure 4-1 with a width of 5mm and a depth of 5mm-10mm is provided on the upper surface of the joint of the outer heater brick module 4 for suspending the traction rod 3. This structure realizes the traction transfer of the traction rod 3 from the inner platinum flat tube 1 to the outer heater brick 4, and only a width greater than 20% of the wall thickness of the traction arm 3-2 needs to be reserved between the front and rear heater bricks 4, which effectively solves the problem of internal and external transmission and the basic sealing problem of the structure.

[0060] The number and density of the tensioning structure are reasonably distributed according to the length range of the cooling flat tube 1, and the position of the joint with the upper heater module 4 coincides. Based on the current length structure of 3000mm-40mm, generally 5 such structures are sufficient. Figure 5 As shown, the number of gaps can be increased as needed and as the number of mating gaps in heater module 4 can be appropriately increased.

[0061] A method for preventing the collapse of a platinum channel cooling flat tube during the heating process mainly involves strengthening the structure of the cooling flat tube 1 on its upper surface through a tension structure and a matching installation process in the device for preventing the collapse of the platinum channel cooling flat tube during the heating process.

[0062] The tension structure needs to consider the stress during the heating process. Traditionally, the filling layer 5 between the cooling flat tube 1 and the heater module 4 is filled with fine alumina slurry, mainly due to the slurry's good fluidity and uniform coating of the cooling flat tube 1. However, this slurry reaches a certain strength around 700℃ during the heating phase after filling, while the platinum expansion is not yet complete. Furthermore, the expansion coefficients of the cooling flat tube 1 and the external heater module 4 differ, leading to relative displacement between them. Existing suspension rod solutions cannot solve this problem and may even cause shear stress between the suspension rod and the cooling flat tube 1, resulting in localized stress. To avoid tearing, this invention first designs the direction of the tensioning rib 3 to be radially distributed with the same cross-section as the cooling flat tube 1, so that it can withstand a certain relative displacement without causing significant shear stress at the root. In addition, to ensure that it is completely free from stress, the traditional fine alumina slurry is replaced with alumina powder, and a segmented and gradual filling method is adopted to solve the problem of the powder's inability to achieve good flowability. That is, a heating module is assembled, and a long material trough is used to fill the powder in the four directions of the flat tube, while a vibrator is used to vibrate the cooling flat tube 1 with a vibration amplitude of <2mm to ensure that the powder is fully and evenly filled. After filling is completed, vibration is stopped and heating of the platinum channel begins. During the actual heating process, the powder remains in an unbonded state, which does not significantly affect the free movement of the internal platinum and suspension rod structure. At 1200℃, the expansion of the platinum structure is basically complete, and the filler material is also sintered at this time, making the cooling flat tube 1, the filling layer 5, and the heater module 4 form a whole. Finally, the joint gaps where the tension suspension rods 3 protrude are specifically filled with fine alumina powder with a particle size of 0.1mm to ensure the final sealing of the overall structure.

[0063] This invention can cope with the ever-increasing size of platinum and provides effective structural reliability assurance for the design of platinum channel structures with larger extraction volumes. The solution has been implemented in the G8.5 project with significant results. The number of thermocouple failures at the top of the cooling tube during the heating process has been significantly reduced, indicating that the structural strength of the cooling flat tube has been significantly improved.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading the present invention, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the invention.

Claims

1. A device for preventing collapse during the heating of a flat tube of a platinum channel cooling, characterized in that, The cooling flat tube (1) is wrapped with a heater module (4), the heater module (4) is provided with a plurality of butt joints between every two butt-jointed heater modules (4), the pulling structure is arranged on the outer surface of the cooling flat tube (1), the pulling structure comprises a pulling lug (3), the pulling lug (3) is coincided with the position of the butt joint, the protruding end of the pulling lug (3) protrudes out of the butt joint, the protruding end is connected with the end of the heater module (4), and the height of the pulling lug (3) is equal to the distance between the cooling flat tube (1) and the heater module (4); The pulling structure further comprises a pulling base (2), the pulling base (2) is connected with the upper surface of the cooling flat tube (1), and the radial distribution of the pulling lug (3) is the same as the radial distribution of the section of the cooling flat tube (1); The pulling lug (3) comprises a welding base (3-1), an arm (3-2) and a pulling hook (3-3), the welding base (3-1) is welded with the pulling base (2), the arm (3-2) is arranged in the butt joint, the end surface of the heater module (4) is provided with a transverse slot structure (4-1), and the pulling hook (3-3) is hung on the transverse slot structure (4-1).

2. The device for preventing collapse during the heating process of a platinum pass cooling flat tube according to claim 1, wherein The pulling base (2) adopts a variable wall thickness structure, and the variable wall thickness structure is thin on both sides and thick in the middle along the radial direction of the cooling flat tube (1).

3. The device of claim 1, wherein, The pulling base (2) is a rectangular platinum sheet, and the connection mode of the pulling base (2) connected with the upper surface of the cooling flat tube (1) is hot forging patch.

4. The apparatus of claim 1, wherein, The width of the butt joint is greater than 20% of the width of the wall thickness of the arm (3-2), and the depth of the transverse slot structure (4-1) is 5mm-10mm.

5. The apparatus of claim 1, wherein, The material of the pulling lug (3) is a platinum-rhodium alloy material, and the rhodium content of the platinum-rhodium alloy material is 10%-20%.

6. The apparatus of claim 1, wherein, A filling layer (5) is arranged between the cooling flat tube (1) and the heater module (4).

7. A method of preventing collapse of a platinum passageway cooling flat tube during a temperature rising process, using the device for preventing collapse of a platinum passageway cooling flat tube during a temperature rising process according to any one of claims 1 to 6, characterized by, The method comprises the following steps: Assembling a section of the heater module (4), filling the cooling flat tube (1) with powder, and simultaneously vibrating the cooling flat tube (1) by using a vibrator, the amplitude of the vibration is less than 2mm, stopping the vibration after the filling is completed, and starting to heat the platinum channel, filling the butt joint where the pulling lug (3) protrudes after the platinum channel is heated to 1300℃, and the filling adopts alumina fine powder with a particle size of 0.1mm.

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