A channel structure for prolonging the life of a substrate glass and a manufacturing method

Abstract

This invention discloses a channel structure and manufacturing method for extending the lifespan of substrate glass, belonging to the field of substrate glass manufacturing technology. By providing a filling layer between the platinum channel body and the innermost refractory material, and by providing filling layers between adjacent refractory material layers and pre-reserving expansion gaps between adjacent refractory components, the uniformity and density of the gap filling between the platinum channel body and the refractory material are ensured. This ensures the consistency of high-temperature sintering of the filling powder, effectively reduces the interface gap between the platinum body and the filling powder, inhibits platinum oxidation and volatilization, and contributes to extending the service life of the platinum channel body. Furthermore, by pre-setting compatible filling layers between different layers of refractory material, the deformation stress caused by the difference in thermal expansion coefficients of different layers of refractory material during heating can be buffered, ensuring the structural integrity of the refractory material covering system surrounding the platinum channel body, avoiding cracking problems caused by asynchronous thermal expansion of the refractory materials, and further extending the overall service life of the channel.

Description

Technical Field

[0001] This invention relates to the field of substrate glass manufacturing technology, and specifically to a channel structure and manufacturing method for extending the lifespan of substrate glass. Background Technology

[0002] In the field of glass substrate manufacturing, the channel is a core functional component for transporting molten glass. Its outer periphery needs to be coated with a variety of refractory materials to build a stable gradient insulation and structural support system. This allows for precise control of the temperature field stability of the molten glass throughout the entire transport process, ensuring that key process parameters such as viscosity and clarification meet the requirements of subsequent processes.

[0003] However, due to the significant difference in thermal expansion coefficients between platinum channels and refractory materials, relative displacement easily occurs between them during heating. This can lead to continuous compressive stress in the platinum channels, which, under long-term action, can cause plastic deformation, cracking, or even overall structural damage. Existing technologies alleviate displacement stress by reserving a buffer gap between the two and filling it with powder. However, in practical applications, the following problems exist: the filling operation is limited by the equipment structure and requires manual on-site layer-by-layer operation. It is impossible to ensure the uniformity of filling density in the circumferential and axial directions of the platinum channel body through mechanized means. Under high-temperature conditions, due to the different degrees of sintering shrinkage of the powder, and the relative slippage between the platinum channels and the sintered powder, irregular gaps are formed at the interface between the two. This allows the oxygen-containing atmosphere to directly contact the platinum channel body, accelerating the high-temperature oxidation and volatilization of the platinum channel and significantly shortening its service life.

[0004] Therefore, how to extend the lifespan of platinum channels has become a technical challenge that urgently needs to be overcome by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a channel structure and manufacturing method for extending the lifespan of substrate glass, so as to overcome the problem in the prior art that the platinum channel is shortened due to the gap between the platinum channel and the sintering powder.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution: This invention provides a channel structure for extending the lifespan of substrate glass, comprising a platinum channel body as the core for transporting molten glass, with multiple layers of refractory material surrounding the outer periphery of the platinum channel body, a filling layer between the platinum channel body and the innermost refractory material, and a filling layer between adjacent refractory material layers, the innermost refractory material serving as the first refractory material being composed of at least two refractory components arranged axially, adjacent refractory components being wedge-shaped connected, and an expansion gap being reserved between adjacent refractory components.

[0007] A further improvement of the present invention is that it also includes a traction device, which is disposed at one end of the platinum channel body and connected to the first refractory material, for synchronously traction of the platinum channel body, the first filling layer and the first refractory material during the heating process, so as to coordinate the thermal expansion behavior of the three.

[0008] A further improvement of the present invention is that the traction device is made of a high-temperature resistant metal material, which is a nickel-based high-temperature alloy or a platinum-rhodium alloy; the traction device is connected to the first refractory material by a boss-type clamping connection or friction connection.

[0009] A further improvement of the present invention is that the expansion gap distance after expansion is 0 to 5 mm; the thickness of the filling layer is 5 to 20 mm; and the thickness of the first refractory material is 10 to 50 mm.

[0010] A further improvement of the present invention is that the platinum channel body and the first refractory material are arranged in concentric circles. The platinum channel body is a circular pipe with a diameter of 100-500 mm. It is made of platinum-rhodium alloy material with a rhodium content of 5%-30% and a wall thickness of 0.5-3.0 mm.

[0011] A further improvement of this invention is that the refractory material is a mullite refractory material or a high-alumina refractory material.

[0012] A further improvement of the present invention is that the filling medium of the filling layer is a powder with the same composition as the refractory material, the particle size of the powder is 0.01 to 2 mm, and the proportion of the powder with a particle size of less than or equal to 1 mm is not less than 80%.

[0013] A further improvement of the present invention is that the length of each refractory component ranges from 500 to 1500 mm.

[0014] A further improvement of the present invention is that three layers of refractory material are arranged around the outer periphery of the platinum channel body, namely, a first refractory material, a second refractory material and a third refractory material from the inside out. A first filling layer is provided between the platinum channel body and the innermost refractory material, a second filling layer is provided between the first refractory material and the second refractory material, and a third filling layer is provided between the second refractory material and the third refractory material.

[0015] The present invention also provides a method for manufacturing a channel structure for extending the lifespan of a substrate glass as described above, comprising the following steps: S1. Pre-install the platinum channel body and the first refractory material according to the design requirements, and leave a gap between the platinum channel body and the first refractory material for the filling layer; fill the filling layer between the platinum channel body and the first refractory material with powder, and combine the isostatic pressing process during the filling process to ensure the density of the filling layer, so that the platinum channel body, the filling layer and the first refractory material become an integrated component. S2. Based on the requirements of the external insulation material, the outermost refractory material is built into an installation base, and the middle layer of refractory material is laid layer by layer. An expansion gap is reserved between adjacent refractory components on the first refractory material, and a filling layer gap is reserved between adjacent layers of refractory material. S3. Install the integrated component inside the penultimate layer of refractory material, and leave a gap between the penultimate layer of refractory material and the innermost layer of refractory material for filling; S4. Fill the expansion gaps between adjacent refractory components and the gaps between the refractory materials of adjacent layers with powder.

[0016] Compared with the prior art, the positive and progressive effects of the present invention are as follows: The channel structure provided by this invention for extending the lifespan of substrate glass features a filling layer between the platinum channel body and the innermost refractory material, filling layers between adjacent refractory material layers, and expansion gaps between adjacent refractory components. This ensures the uniformity and density of the gap filling between the platinum channel body and the refractory material, guarantees the consistency of high-temperature sintering of the filling powder, effectively reduces the interfacial gap between the platinum body and the filling powder, thereby inhibiting platinum oxidation and volatilization, and contributing to the extension of the service life of the platinum channel body. By pre-setting compatible filling layers between different layers of refractory material, the deformation stress caused by the difference in thermal expansion coefficients of different layers of refractory material during heating can be buffered, ensuring the structural integrity of the refractory material covering system around the platinum channel body, avoiding cracking caused by asynchronous thermal expansion of the refractory material, and further extending the overall service life of the channel. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the channel structure used in the present invention to extend the lifespan of substrate glass; Figure 2 This is a schematic diagram of the structure of an integrated component in a specific embodiment; Figure 3 for Figure 2 A cross-sectional view of the integrated component; Among them, 1. Platinum channel body; 2. First filling layer; 3. First refractory material; 3-1. First refractory component; 3-2. Second refractory component; 3-3. Third refractory component; 4. Second filling layer; 5. Second refractory material; 6. Third filling layer; 7. Third refractory material; 8. Traction device; 9. Expansion gap. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. This is an explanation of the present invention and not a limitation thereof.

[0025] This invention provides a channel structure for extending the lifespan of substrate glass, comprising a platinum channel body 1 as the core of glass melt transportation, with multiple layers of refractory material surrounding the outer periphery of the platinum channel body 1, a filling layer between the platinum channel body 1 and the innermost refractory material, and a filling layer between adjacent refractory materials, the innermost refractory material serving as the first refractory material 3 being composed of at least two refractory components arranged axially, adjacent refractory components being wedge-shaped connected, and an expansion gap 9 reserved between adjacent refractory components.

[0026] The segmented wedge design gives the first refractory material 3 the ability to freely elongate axially, and the reserved expansion gap 9 absorbs the difference in thermal elongation between it and the platinum body; the multi-layer refractory material and the corresponding filling layer form a gradient thermal resistance and stress buffer system, so that the heat is gradually attenuated and the stress is released layer by layer, avoiding local concentration.

[0027] By reserving expansion gaps 9 for refractory materials, the uniformity and density of the gap filling between the platinum channel body 1 and the refractory materials are ensured, effectively reducing the interface gap between the platinum channel body 1 and the filling powder, thereby inhibiting platinum oxidation and volatilization, which is conducive to extending the service life of the channel. At the same time, by adopting gap design for different refractory materials and using pre-selected compatible powder filling, the deformation stress caused by the difference in thermal expansion coefficients of different refractory materials during the heating process can be buffered, ensuring the structural integrity of the refractory material covering system around the channel, avoiding cracking problems caused by asynchronous thermal expansion of refractory materials, and further extending the overall service life of the channel.

[0028] Specifically, it also includes a traction device 8, which is located at one end of the platinum channel body 1 and connected to the first refractory material 3. It is used to synchronously traction the platinum channel body 1, the first filling layer 2 and the first refractory material 3 during the heating process, and coordinate the thermal expansion behavior of the three.

[0029] The traction device 8 forces both layers to extend in the same axial direction through mechanical constraints, so that the first filling layer 2 is always under pressure rather than in a shear slip state, thereby maintaining the interface compactness.

[0030] Specifically, the traction device 8 is made of high-temperature resistant metal material, which is a nickel-based high-temperature alloy or a platinum-rhodium alloy; the traction device 8 is connected to the first refractory material 3 by a boss-type clamping connection or friction connection.

[0031] Specifically, the expansion gap 9 after expansion is completed is 0-5mm; the thickness of the filling layer is 5-20mm; and the thickness of the first refractory material 3 is 10-50mm.

[0032] Specifically, the platinum channel body 1 and the first refractory material 3 are arranged in concentric circles. The platinum channel body 1 is a circular pipe with a diameter of 100~500 mm. It is made of platinum-rhodium alloy material with a rhodium content of 5%~30% and a wall thickness of 0.5~3.0 mm.

[0033] The concentric circle arrangement ensures the geometric symmetry of the glass melt flow channel, avoiding local overheating caused by flow deviation; the rhodium content achieves the best balance between strength improvement and cost control; the wall thickness minimizes the amount of platinum used while meeting the requirements for creep stiffness.

[0034] Specifically, the refractory materials used are mullite refractory materials or high-alumina refractory materials.

[0035] Specifically, the filling medium of the filling layer is a powder with the same composition as the refractory material. The particle size of the powder is 0.01 to 2 mm, and the proportion of the powder with a particle size of less than or equal to 1 mm is not less than 80%.

[0036] Specifically, the length of each refractory component ranges from 500 to 1500 mm.

[0037] Specifically, the platinum channel body 1 is surrounded by three layers of refractory material, which are, from the inside out, the first refractory material 3, the second refractory material 5 and the third refractory material 7. The platinum channel body 1 and the innermost refractory material are provided with a first filling layer 2, the first refractory material 3 and the second refractory material 5 are provided with a second filling layer 4, and the second refractory material 5 and the third refractory material 7 are provided with a third filling layer 6.

[0038] The three-layer structure forms a gradient thermal resistance network: the inner layer of high-density refractory material resists thermal shock, the middle layer of high-strength material inhibits deformation, and the outer layer of low thermal conductivity material reduces heat dissipation loss; each filler layer serves as a flexible transition layer, absorbing interlayer thermal mismatch stress and preventing cracking caused by rigid contact.

[0039] Based on the same inventive concept, the present invention also provides a method for manufacturing a channel structure for extending the lifespan of substrate glass as described above, comprising the following steps: S1. Pre-install the platinum channel body 1 and the first refractory material 3 according to the design requirements, and leave a gap between the platinum channel body 1 and the first refractory material 3 for the filling layer; fill the filling layer between the platinum channel body 1 and the first refractory material 3 with powder, and combine the isostatic pressing process during the filling process to ensure the compactness of the filling layer, so that the platinum channel body 1, the filling layer and the first refractory material 3 become an integrated component; S2. According to the requirements of the outer insulation material, the outermost refractory material is built into an installation base, and the middle layer of refractory material is laid layer by layer. An expansion gap 9 is reserved between adjacent refractory components on the first refractory material 3, and a filling layer gap is reserved between adjacent layers of refractory material. S3. Install the integrated component inside the penultimate layer of refractory material, and leave a gap between the penultimate layer of refractory material and the innermost layer of refractory material for filling; S4. Fill the expansion gap 9 reserved between adjacent refractory components and the filling layer gap reserved between adjacent refractory materials with powder.

[0040] In a specific embodiment of the present invention, a channel structure for extending the lifespan of a substrate glass includes a platinum channel body 1, a first refractory material 3, a second refractory material 5, and a third refractory material 7; wherein a first filling layer 2 is disposed between the platinum channel body 1 and the first refractory material 3; a second filling layer 4 is disposed between the first refractory material 3 and the second refractory material 5; a third filling layer 6 is disposed between the second refractory material 5 and the third refractory material 7; the first refractory material 3 includes a first refractory component 3-1, a second refractory component 3-2, and a third refractory component 3-3; The first refractory material 3 is divided into N sections, where N≥2; the first refractory component 3-1, the second refractory component 3-2, and the third refractory component 3-3 are connected in a wedge shape to each other, allowing them to move within a certain range, and an expansion gap 9 is reserved; after the first refractory component 3-1, the second refractory component 3-2, and the third refractory component 3-3 have expanded, the final distance of the expansion gap 9 should be 0-5mm; the length of the first refractory component 3-1, the second refractory component 3-2, and the third refractory component 3-3 is 500-1500mm.

[0041] In a specific embodiment of the present invention, a traction device 8 is also included. The traction device 8 is disposed at one end of the channel and located below the first refractory material 3. The traction device 8 is made of high-temperature resistant metal material, including nickel-based high-temperature alloy or platinum-rhodium alloy. The traction device 8 can synchronously traction the platinum channel body 1, the first filling layer 2 and the first refractory material 3 during the heating and expansion process, ensuring the consistency of their expansion; the traction device 8 and the first refractory material 3 adopt a detachable connection structure, including but not limited to boss sleeve connection, friction connection, etc.

[0042] In a specific embodiment of the present invention, the platinum channel body 1 is a circular pipe with a diameter of 100 to 500 mm, the material is a platinum-rhodium alloy, wherein the rhodium content is 5% to 30%, the wall thickness is 0.5 to 3.0 mm, and the platinum channel body 1 and the first refractory material 3 are designed as concentric circles. The second refractory material 5 has a groove-shaped design and is concentrically set with the first refractory material 3; the first refractory material 3 has high temperature resistance, with a service temperature ≥1640℃, and has supporting strength. The refractory material includes, but is not limited to, mullite refractory material, high alumina refractory material, fused zirconia brick, etc.

[0043] Due to temperature control requirements, different refractory materials are used around the platinum channel. These refractory materials have significantly different thermal expansion characteristics. During the heating process, relative displacement between the materials can easily occur, leading to cracks or even ruptures in the refractory materials. This not only reduces the thermal insulation performance of the insulation system, but may also damage the sealed environment of the channel, causing the platinum channel body to indirectly contact the external environment, exacerbating the high-temperature volatilization loss of platinum, and shortening the overall lifespan of the channel.

[0044] The thickness of the first filler layer 2, the second filler layer 4, and the third filler layer 6 is 5-20 mm. The first filler layer 2 is filled with powder and its material is the same as that of the first refractory material 3. The second filler layer 4 is filled with powder and its material is the same as that of the second refractory material 5. The third filler layer 6 is filled with powder and its material is the same as that of the third refractory material 7. The particle size of the powder is 0.01-2 mm, and the proportion of powder with a particle size of less than or equal to 1 mm exceeds 80%. The thickness of the first refractory material 3 is 10-50 mm.

[0045] By pre-setting compatible filling gaps between refractory materials of different materials, the deformation stress caused by the difference in thermal expansion coefficients of different refractory materials during the heating process can be buffered, ensuring the structural integrity of the refractory material covering system around the channel, avoiding cracking caused by asynchronous thermal expansion of refractory materials, and further extending the overall service life of the channel.

[0046] The first filling layer 2, the first refractory material 3 and the platinum channel body 1 have the same or similar coefficients of thermal expansion, which can ensure the consistency of expansion of the platinum channel body 1, the first filling layer 2 and the first refractory material 3 during the heating expansion process, and reduce the relative displacement caused by different expansion coefficients.

[0047] The channel structure is not limited to the above-mentioned first filling layer 2, first refractory material 3, second filling layer 4, second refractory material 5, third filling layer 6, and third refractory material 7. The outer filling layer can be added or reduced according to the insulation requirements. The thickness and material of the filling layer are also determined by thermal balance calculation according to actual needs.

[0048] In a specific embodiment of the present invention, the platinum channel body 1, the first filling layer 2, and the first refractory material 3 are integrally manufactured to form component 10, and the specific steps are as follows: Step 1: Complete the processing of the platinum channel body 1 and the first refractory material 3; The second step is to pre-install the platinum channel body 1 and the first refractory material 3 according to the design requirements and leave a gap for the first filling layer 2. The third step is to fill the gaps in the first filling layer 2 with powder, and to combine the isostatic pressing process during the processing to ensure the density of the filling layer, forming an integrated component.

[0049] Specifically: During the filling process of 1m unit length, a pressure of 0.01 to 0.5 MPa is applied by an isostatic pressing device and the pressure is maintained for 10 to 45 minutes to ensure that the powder is filled evenly and densely. The isostatic pressing method is a step-by-step pressure increase to avoid excessive instantaneous pressure that could cause deformation of the platinum channel body.

[0050] By integrating the platinum channel body with the refractory material through integrated design and installation, and by reserving expansion gaps for the refractory material, the uniformity and density of the gap filling between the platinum channel body and the refractory material are ensured. This ensures the consistency of high-temperature sintering of the filling powder, effectively reduces the interface gap between the platinum channel body and the filling powder, thereby inhibiting platinum oxidation and volatilization, which is conducive to extending the service life of the channel.

[0051] In a specific embodiment of the present invention, a method for manufacturing a channel structure for extending the lifespan of a substrate glass as described above includes the following steps: The first step is to build the installation base according to the requirements of the external insulation material. The installation base is the third refractory material 7, and the third filling layer 6 is laid on the third refractory material 7. The powder of the third filling layer 6 needs to be compacted and the surface is flat. The second step is to place the second refractory material 5 on the third filling layer 6, and then install the integrated component 10 formed by the platinum channel body 1, the first filling layer 2 and the first refractory material 3 inside the second refractory material 5 according to the design requirements, and reserve the gap of the second filling layer 4. Next, install the traction device 8, and finally fill the reserved gap of the second filling layer 4 and the expansion gap 9 with powder. The third step is to construct the outer insulation of the side from the inside out, leaving a third filling layer of 6, and then fill it with powder.

[0052] During installation, the horizontality error of the component axis is ≤0.5mm / m to ensure the straightness of the channel and the stability of the installation. The powder filling of the first filling layer 2, the second filling layer 4 and the third filling layer 6 is dense, which reduces the relative displacement between the first filling layer 2 and the platinum channel body 1, reduces the contact between the oxidizing atmosphere and the platinum channel body 1, and inhibits the oxidation and volatilization of platinum. The filling layer can also buffer the deformation and extrusion stress caused by the difference in thermal expansion coefficient of different refractory materials, and avoid cracking of the refractory materials.

[0053] Finally, it should be noted that the embodiments listed above are merely one or more specific manifestations of the technical solution of this invention. Their purpose is to clearly illustrate the concept, principle, and application of this invention through specific examples, and is by no means intended to limit the scope of protection of this invention to these specific embodiments. In fact, the true value of this invention lies in its proposed technical ideas and innovations, rather than its manifestations or implementation methods.

[0054] For those skilled in the art, after thoroughly reading and understanding the technical solution of this invention, they are fully capable of making various changes, modifications, or equivalent substitutions to the specific implementation of the invention based on their own professional knowledge and skills. These changes may include, but are not limited to: adjusting the range of technical parameters, optimizing the algorithm flow to improve efficiency, and replacing some technical components to achieve better compatibility or reduce costs. As long as these modified technical solutions substantially retain the technical features claimed by the original invention, that is, they can still achieve the core functions and effects of this invention, then these changes should be considered to fall within the scope of protection of the pending claims of this invention.

[0055] Furthermore, with the continuous progress and development of technology, new technical means and methods are constantly emerging, which provides ample space for further improvement and perfection of this invention. Therefore, the scope of protection of this invention should also include reasonable and foresightful improvements and extensions based on existing technology. As long as these improvements and extensions do not depart from the basic principles and core concepts of this invention, they should be considered equivalents of this invention and are equally protected by patent rights.

Claims

1. A channel structure for extending the lifespan of substrate glass, characterized in that, The platinum channel body (1) is the core of glass melt transportation. The outer periphery of the platinum channel body (1) is surrounded by multiple layers of refractory material. A filling layer is provided between the platinum channel body (1) and the innermost refractory material. A filling layer is provided between the refractory materials of adjacent layers. The innermost refractory material (3) is composed of at least two refractory components arranged along the axial direction. The adjacent refractory components are wedge-shaped connected and an expansion gap (9) is reserved between the adjacent refractory components.

2. The channel structure for extending the lifespan of a substrate glass according to claim 1, characterized in that, It also includes a traction device (8), which is located at one end of the platinum channel body (1) and connected to the first refractory material (3). It is used to synchronously traction the platinum channel body (1), the first filling layer (2) and the first refractory material (3) during the heating process, and coordinate the thermal expansion behavior of the three.

3. The channel structure for extending the lifespan of a substrate glass according to claim 2, characterized in that, The traction device (8) is made of high-temperature resistant metal material, which is a nickel-based high-temperature alloy or a platinum-rhodium alloy; the traction device (8) is connected to the first refractory material (3) by a boss-type sleeve connection or friction connection.

4. A channel structure for extending the lifespan of substrate glass according to claim 1, characterized in that, After expansion is completed, the expansion gap (9) distance is 0-5 mm; the thickness of the filling layer is 5-20 mm; and the thickness of the first refractory material (3) is 10-50 mm.

5. A channel structure for extending the lifespan of substrate glass according to claim 1, characterized in that, The platinum channel body (1) and the first refractory material (3) are arranged in concentric circles. The platinum channel body (1) is a circular pipe with a diameter of 100~500 mm. It is made of platinum-rhodium alloy material with a rhodium content of 5%~30% and a wall thickness of 0.5~3.0 mm.

6. The channel structure for extending the lifespan of substrate glass according to claim 1, characterized in that, The refractory materials used are mullite refractory materials or high-alumina refractory materials.

7. A channel structure for extending the lifespan of a substrate glass according to claim 6, characterized in that, The filling medium of the filling layer is a powder with the same composition as the refractory material. The particle size of the powder is 0.01 to 2 mm, and the proportion of the powder with a particle size of less than or equal to 1 mm is not less than 80%.

8. The channel structure for extending the lifespan of substrate glass according to claim 1, characterized in that, The length of each refractory component ranges from 500 to 1500 mm.

9. A channel structure for extending the lifespan of substrate glass according to claim 1, characterized in that, The platinum channel body (1) is surrounded by three layers of refractory material, which are the first refractory material (3), the second refractory material (5) and the third refractory material (7) from the inside to the outside. A first filling layer (2) is provided between the platinum channel body (1) and the innermost refractory material, a second filling layer (4) is provided between the first refractory material (3) and the second refractory material (5), and a third filling layer (6) is provided between the second refractory material (5) and the third refractory material (7).

10. The method for manufacturing a channel structure for extending the lifespan of a substrate glass as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. The platinum channel body (1) and the first refractory material (3) are pre-installed according to the design requirements, and the gap between the platinum channel body (1) and the first refractory material (3) is reserved; powder is filled into the filling layer between the platinum channel body (1) and the first refractory material (3), and isostatic pressing process is combined during the filling process to ensure the compactness of the filling layer, so that the platinum channel body (1), the filling layer and the first refractory material (3) become an integrated component; S2. According to the requirements of the outer insulation material, the outermost refractory material is built into an installation base, and the middle layer of refractory material is laid layer by layer. An expansion gap (9) is reserved between adjacent refractory components on the first refractory material (3), and a filling layer gap is reserved between adjacent refractory materials. S3. Install the integrated component inside the penultimate layer of refractory material, and leave a gap between the penultimate layer of refractory material and the innermost layer of refractory material for filling; S4. Fill the expansion gap (9) reserved between adjacent refractory components and the filling layer gap reserved between adjacent refractory materials with powder.

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