Device and method for preventing collapse during the heating process of a platinum channel cooling flat tube

Abstract

The present invention discloses a device and method for preventing the collapse of a platinum channel cooling flat tube during the heating process. The device according to the present invention includes a tension structure. An outer part of the cooling flat tube is wrapped by a heater module. A plurality of heater modules are provided. A coupling gap is provided between two heater modules that are oppositely connected to each other. The tension structure is disposed on the outer surface of the cooling flat tube. The tension structure includes a tension bar. The tension bar overlaps with the position of the coupling gap. An extension end of the tension bar protrudes from the coupling gap. The extension end is connected to an end of the heater module. The height of the tension bar is equal to the distance between the cooling flat tube and the heater module. The present invention aims to particularly improve the reliability of the cooling flat tube of the platinum channel. By designing a dedicated tension structure on the upper surface of the cooling flat tube and combining a corresponding attachment method, the stability of the cross-sectional structure of the cooling flat tube during the heating process can be ensured, and the deformation and collapse of the cooling flat tube during the heating process can be prevented.

Description

Technical Field

[0001] The present invention belongs to the technical field of the manufacture of substrate glass, and particularly relates to a device and method for preventing the collapse of a platinum channel cooling flat tube during the heating process.

Background Art

[0002] The platinum channel is one of the main facilities in the manufacturing process of substrate glass, and its cooling part is the most difficult and has the highest risk index in the processing and heating processes. This is mainly due to the special structural form of the cooling part. The cooling part mainly dissipates and cools the stirred and homogenized glass solution quickly and uniformly in the platinum channel device, reducing the temperature at the inlet end from 1400 °C to about 1220 °C at the outlet end, and achieving a glass temperature suitable for the forming process of the next step. Due to the constraints on the layout of the channel space and the very high manufacturing cost, it is necessary to dissipate heat as uniformly as possible within the shortest path. The flat tube structure can basically meet this requirement.

Summary of the Invention

Problems to be Solved by the Invention

[0003] However, compared with the conventional circular tube, in the flat tube, the glass at the center of the cross-section is closer to the surface, so the heat dissipation efficiency is several times higher than that of the conventional circular tube. In addition, by combining refractory materials with different thermal conductivities at different parts of the outer periphery, it is possible to achieve efficient and uniform heat dissipation. The flat tube is made of platinum material, and its wall thickness is usually designed to be 1.0 mm to 1.5 mm. In addition, in order to ensure the reliability of the structural strength, a certain proportion of rhodium (Rh) element is added to the material. However, due to constraints such as cost, ductility, and expansion management, the proportion of Rh can only achieve a certain degree of strengthening, and it is difficult to guarantee complete strength.

[0004] In the manufacture of substrate glass, there is a dedicated heating process. In this heating process, the platinum and refractory materials can gradually adapt to the high-temperature environment at a certain temperature rise rate. At the same time, the supply amount of the glass raw material at the front is increased, and the liquid level height of the internal glass solution is gradually increased, aiming to finally fill the platinum channel with the glass solution. In this process, when the temperature rises from room temperature to 1300 °C, since the cooling part is located at the rear of the channel and the glass solution has not yet completely filled the cooling part, the flat tube structure of the cooling part depends on its own structural strength without the support of the internal glass solution during the temperature rise process. The stability in the hollow tubular state cannot be completely ensured, and the upper surface of the flat tube often collapses and deforms during the heating process. This deformation is judged to be caused by the failure due to accidental tensile force from the abnormal display of the thermocouple welded to the upper surface. Therefore, the deformation problem of the cooling flat tube is one of the main problems in the heating process. In the prior art, various improvements have been made to address this problem, such as increasing the number of welds to improve structural stability and devising preventive measures for initial collapse in the manufacturing process, but this problem has still not been completely solved. Therefore, the problem to be solved currently is that the cooling flat tube cannot be prevented from deforming and collapsing during the heating process.

[0005] Therefore, the problem to be solved at present is that the deformation and collapse of the cooling flat tube during the heating process cannot be prevented.

Means for Solving the Problem

[0006] The object of the present invention is to overcome the problem that the cooling flat tube cannot be prevented from deforming and collapsing during the heating process, and to disclose an apparatus (hereinafter also referred to as an apparatus for preventing the collapse of the platinum channel cooling flat tube during the heating process) and a method for preventing the collapse of the platinum channel cooling flat tube during the heating process. In the present invention, the collapse problem is solved by using structural auxiliary techniques, and the action point is clarified to exert a direct effect, so that it has an excellent effect in suppressing the collapse of the flat tube during the heating process.

[0007] To achieve the above object, the present invention adopts the following technical means. The present invention includes a tension structure, and a heater module (4) is wrapped outside the cooling flat tube (1). A plurality of the heater modules (4) are provided, and a coupling gap is provided between two of the heater modules (4) that are oppositely connected. The tension structure is disposed on the outer surface of the cooling flat tube (1). The tension structure includes a tension bar (3). The tension bar (3) overlaps with the position of the coupling gap, and the extending end of the tension bar (3) protrudes from the coupling gap, and the extending end is connected to the end of the heater module (4). The height of the tension bar (3) is equal to the distance between the cooling flat tube (1) and the heater module (4). A device for preventing collapse during the heating process of a platinum channel cooling flat tube is disclosed.

[0008] Furthermore, the tension structure further includes a traction base (2), and the traction base (2) is connected to the upper surface of the cooling flat tube (1).

[0009] Furthermore, the traction base (2) adopts a variable wall thickness structure, and the variable wall thickness structure is thin at both ends and thick in the middle along the radial direction of the cooling flat tube (1).

[0010] Furthermore, the traction base (2) is a rectangular platinum plate, and the connection method between the traction base (2) and the cooling flat tube (1) adopts a hot forging patch.

[0011] Furthermore, the tension bar (3) includes a welding base (3-1), an extension arm (3-2), and a traction hook (3-3). The welding base (3-1) is welded to the traction base (2). The extension arm (3-2) is disposed in the coupling gap. A horizontal channel groove structure (4-1) is provided on the upper surface of the end of the heater module (4), and the traction hook (3-3) is suspended in the horizontal channel groove structure (4-1).

[0012] Furthermore, the width of the coupling gap is 20% or more of the wall thickness of the extension arm (3-2), and the depth of the horizontal channel groove structure (4-1) is from 5 mm to 10 mm.

[0013] Furthermore, the radial arrangement of the tension bar (3) is the same as the radial arrangement of the cross-section of the cooling flat tube (1).

[0014] Furthermore, the material of the tension bar (3) is a platinum-rhodium alloy, and the rhodium content of the platinum-rhodium alloy is from 10% to 20%.

[0015] Furthermore, a filling layer (5) is provided between the cooling flat tube (1) and the heater module (4).

[0016] Also, the present invention discloses a method for preventing the collapse of a platinum channel cooling flat tube during the heating process, which uses the collapse prevention device during the heating process according to any one of claims 1 to 9, partially assembles the heater module (4), fills the cooling flat tube (1) with a powder material, and at the same time uses a vibrating device to vibrate the cooling flat tube (1), with the amplitude of the vibration being less than 2 mm. After the filling is completed, the vibration is stopped, and the heating of the platinum channel is started. After the heating temperature of the platinum channel reaches 1300°C, filling is performed in the coupling gap where the tension bar (3) protrudes, and alumina fine powder with a particle size of 0.1 mm is used for the filling.

Advantages of the Invention

[0017] The collapse prevention device for a platinum channel cooling flat tube during the heating process according to the present invention has the following beneficial effects. The present invention designs a dedicated tension structure on the upper surface of the cooling flat tube, and this tension structure includes a tension bar. The tension bar overlaps with the position of the coupling gap, and the extending end of the tension bar protrudes from the coupling gap between the two heater modules, and its end is connected to the heater module. Thereby, the stability of the cross-sectional structure of the cooling flat tube during the heating process is ensured, the collapse problem is solved by structural auxiliary technology, the acting point is clear, the effect is direct, and it is possible to prevent the cooling flat tube from deforming and collapsing during the heating process.

[0018] In the device according to the present invention, the tension structure is mainly attached to the main body in the form of a radial hook welded to the base, and the other end is hung in the groove of the installed heater brick. With this structure, the collapse reaction force of the flat tube is transmitted to the upper heater brick, and the deformation of the flat tube can be prevented. As an attachment method suitable for this structure, the original fine slurry filling material is changed to a powder material with a sintering temperature of about 1200°C, and it is possible to avoid the tension structure receiving a shear force in the streamline direction during the heat expansion process. Also, after the expansion is completed, the coupling gap between the heater bricks can be finally filled with powder to ensure basic airtightness.

[0019] The tension bar of the present invention adopts a radial distribution similar to the cross-section of the cooling flat tube, protrudes from the coupling gap between the two heater modules, and is suspended at the end of the heater module, thereby solving the protrusion problem of the heater module. Also, it is possible to solve the shear force problem of the suspension bars caused by the expansion in the platinum flow direction and the relative displacement of the heat-resistant material.

[0020] In the present invention, a traction base is provided between the tension bar and the cooling flat tube, so that the pulling point of the tension structure is small, and the risk of local cracking problems occurring during the process of applying force can be reduced.

[0021] The traction base adopts a shape with thin ends and a thick middle part, and it is possible to effectively eliminate the stress concentration problem caused by the local dimensional change due to the thickness transition at both ends.

[0022] The horizontal through-groove structure realizes the suspension of the tension bar, enabling the tension bar to transmit the traction force from the internal platinum flat tube to the external heater brick. Also, by ensuring a width of more than 20% of the wall thickness of the traction arm between the front and rear heater bricks, the problems of internal and external force transmission and the sealing of the structure can be solved.

[0023] In the present invention, the direction of the tension bar is designed to be the same radial direction as the cross-section of the cooling flat tube, enabling it to withstand a certain relative displacement and preventing significant shear stress from occurring at the root. Also, by ensuring that the load is not completely applied, the problem of local cracking can be avoided.

[0024] In the method of the present invention, a dedicated filling is performed for the joint gap where the tension bar 3 protrudes, and by filling with aluminum oxide fine powder having a particle size of 0.1 mm, the final sealing performance of the entire structure can be ensured.

[0025] The present invention can accommodate the increasing platinum size and provides effective structural reliability for the design of a platinum passage structure with a larger extraction amount. This method is currently being implemented in the G8.5 project, and it has been confirmed that the number of thermocouple failures at the upper part of the cooling flat tube has significantly decreased and the structural strength of the cooling flat tube has been improved.

[0026] The drawings attached to this specification are for providing a further understanding of the present invention and constitute a part of the present invention. The embodiments shown in these drawings and their descriptions are for explaining the present invention and do not unduly limit the present invention.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0028] For those skilled in the art to better understand the technical solution of the present invention, hereinafter, with reference to the drawings in the embodiments of the present invention, the technical solution of the embodiments of the present invention will be clearly and completely described. It is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor shall also fall within the protection scope of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention, as well as in the above drawings, are used to distinguish similar objects and do not represent a specific order or sequence. When appropriate, these terms can be replaced, and it should be understood that the embodiments of the present invention can be implemented in an order different from the order described or illustrated herein. Also, the terms "include" and "have" and their variations are intended to mean non-exclusive inclusion. For example, a process, method, system, product or device including a plurality of steps or elements can include other steps or elements not explicitly listed, or other steps or elements inherent to these processes, methods, products or devices.

[0030] (Example 1) As shown in FIGS. 1, 2 and 5, the device for preventing the collapse in the heating process of the platinum channel cooling flat tube according to the present invention includes a tension structure. A plurality of heater modules 4 are arranged outside the cooling flat tube 1, and a coupling gap is provided between each pair of opposing heater modules 4. The tension structure is arranged on the outer surface of the cooling flat tube 1, and the tension structure includes a tension bar 3. The tension bar 3 overlaps with the position of the coupling gap, and the extending end (projecting end) of the tension bar 3 extends (projects) from the coupling gap, and the extending end is connected to the end of the heater module 4. The height of the tension bar 3 is equal to the distance between the cooling flat tube 1 and the heater module 4.

[0031] As shown in FIGS. 1 and 5, the tension structure further includes a traction base 2, and the traction base 2 is connected to the upper surface of the cooling flat tube 1.

[0032] The traction base 2 adopts a variable wall thickness structure. Specifically, it has a shape that is thin on both sides and thick in the middle along the radial direction of the cooling flat tube 1.

[0033] The traction base 2 is a rectangular platinum plate, and a hot forging patch is used for the connection method. For example, in the case of a rectangular platinum plate with an original thickness of 1.5 mm and a cooling flat tube 1 with a thickness of 1.0 mm, the hot forging patch is to bond a rectangular platinum plate with a thickness of 1.5 mm to the upper surface of the cooling flat tube 1 and forge it at a high temperature to generate a certain adhesive force between the edge of the rectangular platinum plate and the cooling flat tube 1. For the central region with a relatively large thickness, a small amount of welding rods are added to both the front and rear sides of the rectangular platinum plate to weld the rectangular platinum plate and the cooling flat tube 1.

[0034] Preferably, the dimensions of the traction base 2 are related to the size of the upper surface of the cooling flat tube. For example, in the case of a cooling flat tube 1 with a width of 600 mm to 700 mm, the width of the traction base 2 is usually about 100 mm, and the width of the traction base 2 in the glass flow direction is designed to be 50 mm to 80 mm.

[0035] As shown in FIGS. 3 and 4, the tension bar 3 includes a welding base 3-1, an extension arm 3-2, and a traction hook 3-3. The welding base 3-1 is completely welded to the traction base 2, and the extension arm 3-2 is installed in the coupling gap. Further, a horizontal channel groove structure 4-1 is provided on the upper surface of the end of the heater module 4, and the traction hook 3-3 is suspended in the horizontal channel groove structure 4-1.

[0036] The width of the coupling gap is 20% or more of the wall thickness of the extension arm 3-2, and the depth of the horizontal channel groove structure 4-1 is 5 mm to 10 mm.

[0037] Preferably, the length of the extension arm 3-2 is 70 mm to 90 mm, the width of the extension arm 3-2 exceeds 15 mm, and the wall thickness of the extension arm 3-2 exceeds 1.0 mm.

[0038] Preferably, the traction hook 3-3 adopts an arc-shaped hook or other transitional shapes, as long as it mainly has a structural form with a hook at the end.

[0039] Preferably, the width of the horizontal channel groove structure 4-1 is 5 mm.

[0040] The radial arrangement of the tension bar 3 is the same as the radial arrangement of the cross-section of the cooling flat tube 1.

[0041] The material of the tension bar 3 is a platinum-rhodium alloy, and the rhodium content is 10% to 20%.

[0042] A filling layer 5 is provided between the cooling flat tube 1 and the heater module 4.

[0043] Preferably, the tension structure is based on the current length structure of 3000 mm - 40 mm, and is generally arranged at five locations, but can be appropriately increased as required and according to the number of coupling gaps of the heater bricks.

[0044] Method for preventing collapse in the heating process of a cooling flat tube according to the present invention (also referred to as a method for preventing collapse in the heating process of a platinum channel cooling flat tube in the present invention) uses a device for preventing collapse in the heating process of the platinum channel cooling flat tube. This method includes the following steps. First, assemble the section of the heater module 4 and fill the cooling flat tube 1 with a powder material. Preferably, use a long supply tank to fill the powder material in the four directions of up, down, left, and right of the cooling flat tube 1, and at the same time use a vibration device to vibrate the cooling flat tube 1. The amplitude of vibration is less than 2 mm. After filling is completed, stop the vibration and start heating the platinum channel. After the platinum channel reaches 1300 °C, perform filling in the coupling gap where the tension bar 3 protrudes, and use aluminum oxide fine powder with a particle size of 0.1 mm for filling.

[0045] In this method, by changing the conventional aluminum oxide fine slurry to a powder material of aluminum oxide and adopting a method of filling separately in stages, the problem that the fluidity of the powder material cannot be obtained sufficiently is solved.

[0046] (Example 2) Regarding the device for preventing the collapse of the cooling flat tube of the platinum channel according to the present invention during the heating process, as shown in FIG. 1, the connection form between the tension structure and the cooling flat tube 1 includes, when viewed from the cross-sectional direction, the cooling flat tube 1, the traction base 2, and the tension bar 3. Considering the characteristics of the overall structure of the cooling part, that is, there is a heater brick structure outside the cooling flat tube 1, as shown in FIG. 2, the heater module 4 outside the cooling flat tube 1 is connected in a plurality of sets of groups. Since it is necessary to maintain the integrity of the structure of the heater itself and the internal heating wires are evenly arranged, it is not possible to open a hole in the central part of the brick to destroy the arrangement of the heating wires. Therefore, the tension bar cannot be made to protrude by opening a hole in the main plane of the upper heater module 4, and it is necessary to consider the arrangement form of the tension bar 3. In the prior art, there were several proposals regarding the hanging bar structure form of the cooling flat tube 1, but none of them could solve the problem of protrusion from the heater module 4, and also could not solve the problem of shear stress on the hanging bar caused by the relative displacement between the expansion in the flow direction of platinum and the refractory material. The tension bar 3 of the present invention adopts an arrangement in the same radial direction as the cross-section of the cooling flat tube 1, protrudes from the coupling gap between the two heater modules 4, and can be suspended at the end of the heater module 4, thereby completely solving the above problems.

[0047] Regarding the connection with the tension structure, mainly considering that the point receiving the traction force is small and local tearing is likely to occur during the process of receiving the force, when connecting to the cooling flat tube 1, it is considered that the tension bar 3 should not be directly welded to the cooling flat tube 1 as much as possible. In order to effectively solve this problem, a traction base 2 is provided between the tension bar 3 and the cooling flat tube 1. In order to avoid the connection method between the traction base 2 and the cooling flat tube 1 and local stress concentration, the traction base 2 adopts a variable wall thickness structure form. As shown in FIG. 1, in the cross-sectional direction, the traction base 2 adopts a form with thin ends and thick middle, so that the problem of stress concentration caused by local dimensional changes due to the sudden change in thickness at both ends can be effectively eliminated.

[0048] The connection method between the traction base 2 and the cooling flat tube 1 adopts the hot forging patch method. That is, a rectangular platinum plate with a thickness of 1.5 mm is bonded to the upper surface of the cooling flat tube 1 with a thickness of 1.0 mm, and by forging at a high temperature, a certain adhesive force is generated between the edge of the rectangular platinum plate and the cooling flat tube 1. Also, for the central part with a large thickness, a small amount of welding rods are added to both the front and back sides to ensure the overall bonding between the traction base 2 and the upper surface of the cooling flat tube 1. Generally, according to the size of the upper surface of the cooling flat tube, rectangular traction bases 2 of different sizes are selected. For example, in the case of a cooling flat tube with a width of 600 mm to 700 mm, the width of the traction base 2 is usually about 100 mm, and the width in the glass flow direction is designed to be 50 mm to 80 mm, so that the traction effect on this area can be ensured.

[0049] As shown in Figure 3, the specific structure of the tension bar 3 is divided into a welding base 3-1, an extension arm 3-2, and a traction hook 3-3. The welding base 3-1 of the tension structure is connected to the lower traction base 2 in a full welding form. As shown in Figure 4, the length of the extension 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 15 mm, and the thickness of the heater 4 is generally 50 mm to 70 mm, ensuring the basic structural strength of the refractory material. The width and thickness of the extension arm 3-2 determine the traction load capacity, and the traction load capacity is also related to the overall material of the tension bar 3. The cooling flat tube 1 is generally made of a platinum-rhodium alloy with a rhodium content of 5% to 10%, and the tension bar 3 is usually designed with a rhodium content of 10% to 20%. The higher the rhodium content, the greater the tensile strength of the material. In this material structure, if the width exceeds 15 mm and the wall thickness exceeds 1.0 mm, the requirement of the load capacity can be met. The traction hook 3-3 adopts an arc-shaped hook, or other transitional shapes can also be adopted, as long as the end is equipped with a hook structure.

[0050] Regarding the structure of the tension bar 3, as shown in Fig. 4, on the upper surface of the butt joint (connection part) of the external heater brick module 4, a horizontal channel groove structure 4-1 with a width of 5 mm and a depth of 5 mm to 10 mm is provided and is used for suspending (hanging) the tension bar 3. With this structure, the tension bar 3 realizes the traction transmission from the internal platinum flat tube 1 to the external heater brick 4. Between the two front and rear heater bricks 4, it is only necessary to ensure a width of more than 20% of the wall thickness of the traction extension arm 3-2, and the transmission problems between the inside and the outside and the basic sealing problem of the structure can be effectively solved.

[0051] The tension structure is arranged in an appropriate quantity and density based on the length range of the cooling flat tube 1 and is arranged to coincide with the position of the joint gap of the upper heater module 4. In the current length structure from 3000 mm to 40 mm, it is usually only necessary to arrange it at 5 positions, and as shown in Fig. 5, it can be appropriately increased according to the actual necessity and the number of joint gaps of the heater module 4.

[0052] The method for preventing the collapse of the cooling flat tube in the heating process according to the present invention (also referred to as the method for preventing the collapse of the platinum channel cooling flat tube in the heating process in the present invention) is mainly realized by strengthening the structure of the cooling flat tube 1 using the tension structure provided on the upper surface of the cooling flat tube 1 and the corresponding installation method in the device for preventing the collapse of the cooling flat tube of the platinum channel in the heating process.

[0053] The tensegrity structure needs to consider the load problem during the heating process. The filling layer 5 arranged between the conventional cooling flat tube 1 and the heater module 4 is generally filled with a fine slurry of aluminum oxide. This is mainly because the slurry has excellent fluidity and can be evenly wrapped around the cooling flat tube 1. However, during the heating process after filling, this slurry becomes to have a certain strength at about 700 °C. At this time, the expansion of platinum is not yet complete, and there is a difference in the expansion coefficients between the cooling flat tube 1 and the external heater module 4, so relative movement occurs between the two. The design of the suspension bars in the prior art cannot solve this problem, and in some cases, shear stress may occur between the suspension bars and the cooling flat tube 1, causing local cracks. To avoid this problem, in the present invention, first, the direction of the tension bar 3 is arranged in the same radial direction as the cross-section of the cooling flat tube 1, so as to withstand a certain relative movement and not generate significant shear stress at the root part. Also, to avoid completely bearing the load, the method of changing the conventional fine slurry of aluminum oxide to aluminum oxide powder and filling it in segments is adopted to solve the problem of the fluidity of the powder. Specifically, a part of the heating module is assembled, a long supply tank is used to fill the powder in the four directions of up, down, left, and right of the cooling flat tube, and at the same time, a vibration device is used to vibrate the cooling flat tube 1. The amplitude of the vibration is less than 2 mm to ensure that the powder is filled evenly enough. After the filling is completed, the vibration is stopped and the heating of the platinum channel is started. During the actual heating process, the powder remains in an unbonded state and hardly affects the free movement of the internal platinum and the suspension bar structure. When the temperature reaches 1200 °C, the expansion of the platinum structure is almost complete, and at this time, the filler just sinters, forming an integration between the cooling flat tube 1, the filling layer 5, and the heater module 4. Finally, special filling is performed in the coupling gap where the tension bar 3 protrudes, filling it with fine aluminum oxide powder with a particle size of 0.1 mm to ensure the final sealing of the entire structure.

[0054] The present invention can provide effective structural reliability for designing a channel structure that can accommodate the continuously increasing size of platinum and has a larger platinum extraction amount. Currently, this technical solution has been introduced into the G8.5 project, and its effect is remarkable. It has been confirmed that the number of failures of the thermocouple at the upper part of the cooling section during the heating process has significantly decreased, and the structural strength of the cooling flat tube has been greatly improved.

[0055] Finally, the above embodiments are used to illustrate the technical solutions of the present invention and do not limit its protection scope. Although the present invention has been described in detail based on the above embodiments, those skilled in the art should understand that various changes, modifications, or equivalent replacements can be made to the specific implementation methods of the present invention after reading this disclosure. All of these changes, modifications, or equivalent replacements are included within the protection scope of the claims of the present invention.

Description of Reference Numerals

[0056] 1 Cooling flat tube, 2 Tension base 3 Tensile bar 3-1 Welding base 3-2 Extension arm 3-3 Tension hook 4 Heater module 4-1 Horizontal channel groove structure 5 Filling layer

Claims

1. It includes a tension structure, and a heater module (4) is wrapped outside the cooling flat tube (1). A plurality of the heater modules (4) are provided, and a coupling gap is provided between two of the heater modules (4) that are oppositely connected. The tension structure is arranged on the outer surface of the cooling flat tube (1), The tension structure includes a tension bar (3). The tension bar (3) overlaps with the position of the coupling gap. The extending end of the tension bar (3) protrudes from the coupling gap, and the extending end is connected to the end of the heater module (4). The height of the tension bar (3) is equal to the distance between the cooling flat tube (1) and the heater module (4). A device for preventing collapse during the heating process of a platinum channel cooling flat tube, characterized in that.

2. The tension structure further includes a traction base (2). The traction base (2) is connected to the upper surface of the cooling flat tube (1). A device for preventing collapse during the heating process of a platinum channel cooling flat tube according to Claim 1.

3. The traction base (2) adopts a variable wall thickness structure. The variable wall thickness structure is thin at both ends and thick in the middle along the radial direction of the cooling flat tube (1). A device for preventing collapse during the heating process of a platinum channel cooling flat tube according to Claim 2.

4. The traction base (2) is a rectangular platinum plate. The connection method between the traction base (2) and the cooling flat tube (1) adopts a hot forging patch. A device for preventing collapse during the heating process of a platinum channel cooling flat tube according to Claim 2.

5. The tension bar (3) includes a welding base (3-1), an extension arm (3-2), and a traction hook (3-3). The welding base (3-1) is welded to the traction base (2). The extension arm (3-2) is arranged in the coupling gap. A horizontal channel groove structure (4-1) is provided on the upper surface of the end of the heater module (4). The traction hook (3-3) is suspended in the horizontal channel groove structure (4-1). A device for preventing collapse during the heating process of a platinum channel cooling flat tube according to Claim 1.

6. The width of the coupling gap is 20% or more of the wall thickness of the extension arm (3-2). The depth of the horizontal channel groove structure (4-1) is 5 mm to 10 mm. A device for preventing collapse during the heating process of a platinum channel cooling flat tube according to Claim 5.

7. The device for preventing collapse during the heating process of the platinum channel cooling flat tube according to claim 1, wherein the radial arrangement of the tension bar (3) is the same as the radial arrangement of the cross-section of the cooling flat tube (1).

8. The device for preventing collapse during the heating process of the platinum channel cooling flat tube according to claim 1, wherein the material of the tension bar (3) is a platinum-rhodium alloy, and the rhodium content of the platinum-rhodium alloy is 10% to 20%.

9. The device for preventing collapse during the heating process of the platinum channel cooling flat tube according to claim 1, wherein a filling layer (5) is provided between the cooling flat tube (1) and the heater module (4).

10. A method for preventing collapse during the heating process of a platinum channel cooling flat tube, using the device for preventing collapse during the heating process according to any one of claims 1 to 9, assembling a part of the heater module (4), filling the cooling flat tube (1) with a powder material, and simultaneously using a vibrating device to vibrate the cooling flat tube (1), with the amplitude of vibration being less than 2 mm, stopping the vibration after filling is completed, and starting the heating of the platinum channel; after the heating temperature of the platinum channel reaches 1300 °C, filling the coupling gap where the tension bar (3) protrudes, and using aluminum oxide fine powder with a particle size of 0.1 mm for filling. A method for preventing collapse during the heating process of a platinum channel cooling flat tube, characterized by including the above steps.

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