Structure capable of detecting temperature rise collapse amount of channel cooling pipe on line

Abstract

The utility model discloses a structure capable of detecting the temperature rise collapse amount of a channel cooling pipe on line, and belongs to the technical field of substrate glass manufacturing. The utility model provides a structure capable of detecting the temperature rise collapse amount of a channel cooling pipe on line. The structure comprises a cooling pipe body, a refractory brick, a ceramic sleeve, a platinum slender rod and a connecting platinum piece. The collapse amount of the cooling pipe body is determined by measuring the height change of the platinum slender rod relative to the ceramic sleeve before and after collapse. According to the measurement mode, real-time observation of the collapse amount of the cooling pipe is ensured, the observation result is presented in a visual and accurate data form, and a reliable reference basis is provided for related personnel; meanwhile, the distance between the platinum slender rod and the first wall face and the distance between the platinum slender rod and the second wall face of the ceramic sleeve are controlled to adapt to axial expansion generated in the heating process of the cooling pipe, the design ensures that the platinum slender rod is always kept in a vertical state, and therefore the measurement accuracy is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of substrate glass manufacturing, in particular to a structure capable of online detecting the temperature rise and collapse amount of a channel cooling pipe. Background Art

[0002] The cooling tube, a core component of the platinum channel system, efficiently dissipates heat from the homogenized glass melt in the front zone, ensuring the outlet temperature is precisely controlled to near the ideal temperature for forming overflow. To achieve this efficient heat dissipation goal, the cooling tube's cross-section cleverly adopts a flat, nearly elliptical structure, allowing heat from the center of the glass to dissipate rapidly to the surrounding environment via the shortest path and widest range. Furthermore, combined with the carefully arranged refractory structure on the outside, temperature uniformity is ensured across the entire flat tube cross-section.

[0003] However, the structural characteristics of flat tubes also present the challenge of uneven strength distribution. Especially during the initial heating phase, when the molten glass has not yet flowed into the tube, the top of the cooling tube lacks effective support, which often leads to collapse and deformation of the tube under high-temperature conditions. This collapse and deformation is not only affected by differences in material and structural dimensions, but also has a significant impact on the reliability and service life of the cooling tube. More seriously, the collapse of the tube body may indirectly cause the top-welded thermocouple wire to break, resulting in the failure of the temperature monitoring function and seriously affecting the production process.

[0004] In recent years, in-depth analysis and continuous improvement of cooling tube strength have become a research hotspot within the industry. While simulation and physical modeling have yielded a general understanding of the fundamental principles of cooling tube collapse, precisely determining the collapse size remains challenging. This uncertainty complicates material selection and structural dimension matching. To more accurately reproduce the model and optimize the design of new flat tube dimensions to meet diverse requirements, testing must be conducted closely in conjunction with actual operating conditions.

[0005] Therefore, how to determine the collapse deformation size of the cooling tube to effectively ensure the structural stability and high-temperature resistance of the cooling tube and provide solid support for the performance improvement of platinum channel equipment has become a technical problem that technical personnel in this field urgently need to overcome. Summary of the Invention

[0006] The purpose of the utility model is to provide a structure that can detect the amount of collapse of the channel cooling tube when it is heated online, so as to overcome the problem in the prior art that the refractory material wraps the platinum channel as a whole, and the cooling tube is deformed at high temperature due to its own weight during the heating stage, resulting in the inability to observe the collapse amount in real time and difficulty in digitizing it.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] A structure capable of online detection of the temperature rise and collapse of a channel cooling pipe, comprising a cooling pipe body, refractory bricks, a ceramic sleeve, a platinum thin rod and a connecting platinum sheet;

[0009] The refractory bricks are hollow in structure and penetrate the cooling tube body. The cooling tube body is a tube with flat upper and lower surfaces. A through hole is provided on the upper part of the refractory bricks. A ceramic sleeve is fixedly connected in the through hole. A connecting platinum sheet is fixedly connected to the upper surface of the cooling tube body. A platinum thin rod is vertically fixed to the connecting platinum sheet. The platinum thin rod passes through the ceramic sleeve and has a clearance fit with the ceramic sleeve.

[0010] The height of the ceramic sleeve is not lower than the through hole, and the platinum thin rod is higher than the sum of the heights of the ceramic sleeve and the cooling tube body.

[0011] Furthermore, the distance between the platinum thin rod and the first wall surface of the ceramic sleeve is smaller than the distance between the platinum thin rod and the second wall surface.

[0012] Furthermore, the platinum sheet is fixedly connected to the upper surface of the cooling tube body by four-corner electric welding.

[0013] Furthermore, the cooling tube body is made of platinum-rhodium alloy material.

[0014] Furthermore, the connecting platinum sheet is made of platinum-rhodium alloy material.

[0015] Furthermore, the platinum thin rod is vertically fixed to the connecting platinum sheet by welding.

[0016] Furthermore, the platinum thin rod is solid, and the cross section is one of rectangular, square and circular.

[0017] Furthermore, the cross section of the through hole is one of rectangular, square and circular.

[0018] Furthermore, the ceramic sleeve is made of corundum material, and its cross section is one of rectangular, square and circular. The ceramic sleeve is fixedly connected to the through hole by cement.

[0019] Furthermore, the cross-section of the ceramic sleeve is rectangular, with a length of 30 mm, a width of 8 mm, and a height of 40 mm; the cross-section of the through hole is rectangular, with a length of 40 mm and a width of 12 mm; the cross-section of the platinum rod is circular, with a diameter of 3 mm and a height of 80 to 150 mm; the thickness of the connecting platinum sheet is 1 mm, the length is 10 to 15 mm, and the width is 10 to 15 mm; the distance between the platinum rod and the second wall of the ceramic sleeve is greater than 25 mm.

[0020] Compared with the prior art, the positive progress of the present invention is:

[0021] The present utility model provides a structure that can detect the amount of temperature rise and collapse of a channel cooling tube online. The structure determines the amount of collapse of the cooling tube body by measuring the height change of the platinum rod relative to the ceramic sleeve before and after the collapse. This measurement method ensures real-time observation of the amount of collapse of the cooling tube, and presents the observation results in the form of intuitive and accurate data, providing a reliable reference basis for relevant personnel. At the same time, the present utility model sets the platinum rod in a stable ceramic sleeve in the through hole of the refractory brick, which not only effectively isolates the high temperature of the refractory brick and prevents the platinum rod from deforming in a high temperature environment and affecting the measurement accuracy; at the same time, the ceramic sleeve also provides a relatively closed movement space for the platinum rod, avoiding the problem of the platinum rod getting stuck due to the deformation of the refractory brick due to heating or other external factors, thereby ensuring the accuracy of the measurement.

[0022] Furthermore, taking into account the possible deformation of the cooling tube in a high-temperature environment, the utility model places the platinum rod in close contact with the first wall of the ceramic sleeve, and controls the distance between the platinum rod and the first and second walls of the ceramic sleeve to accommodate the axial expansion of the cooling tube during the heating process. This design ensures that the platinum rod always remains in a vertical state, thereby significantly improving measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings in the specification are used to provide further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the cooling pipe body of the present invention;

[0026] Figure 3 This is a schematic diagram of the cooling pipe body collapse measurement of the utility model;

[0027] Figure 4 This is a structural diagram of the second embodiment of the present utility model.

[0028] Among them, 1. Cooling tube body; 2. Refractory bricks; 3. Ceramic sleeve; 3-1. First wall; 3-2. Second wall; 4. Platinum thin rod; 5. Connecting platinum sheet. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the implementation of the present invention:

[0030] A structure capable of online detection of the amount of temperature rise and collapse of a channel cooling pipe, comprising a specially made platinum thin rod, a connecting platinum sheet at the bottom, and a refractory brick structure matching the two;

[0031] The platinum thin rod is connected to the cooling pipe through the connecting platinum sheet at the bottom, and the vertical thin rod passes through the sleeve with an opening and the refractory brick body to ensure that there is a gap for relative free movement vertically and backwards. When the cooling pipe is running at high temperature and the top collapses, the connected platinum thin rod will move downward accordingly. The real-time collapse amount of the cooling pipe itself can be confirmed by externally measuring the corresponding downward movement amount.

[0032] As a preferred embodiment of the present invention, the platinum thin rod is welded to the platinum sheet at the bottom, and the platinum sheet is also welded to the cooling tube to ensure a certain connection strength.

[0033] As a preferred embodiment of the present invention, the refractory brick structure needs to have a matching rectangular hole for the platinum rod, and a ceramic sleeve with a rectangular cross-section is inserted into the rectangular hole. The interior of the sleeve is also a rectangular cavity. The inner wall of the cavity needs to have a certain degree of flatness, forming a vertical and axial matching gap between the platinum rod and the ceramic sleeve to ensure the relative displacement space of the platinum rod with respect to the ceramic sleeve.

[0034] As a preferred solution of the present invention, the rectangular hole is cut off after the cooling tube finishes heating and expanding, the glass liquid fills the inside, and the flat tube recovers its height under pressure. The exposed platinum rod is then cut off and the hole gap is filled and sealed with thermal insulation cotton or alumina powder to ensure that the internal platinum is isolated from the external environment.

[0035] Among them, the cooling tube body 1 is an inherent structure, which is the main measuring object and connecting base of the detection device. It adopts a large-section thin-walled flat tube structure and has efficient heat dissipation capability. The process capability is met but the structural strength is defective; the interior of the refractory brick 2 is filled with a heating wire body, which is the main heating body of this section of the structure. According to the solution of the utility model, the refractory brick is structurally modified, and a groove-shaped hole with a length of 40mm and a width of 12mm is processed in the heating blank area to place the ceramic sleeve 3 and the internal platinum thin rod 4; the ceramic sleeve 3 is a rectangular sleeve with a length of 30mm and a width of 8mm. It is assembled and fixed with the refractory brick 2 and is wrapped and adhered with clay around it to form an integral structure. The ceramic sleeve 3 is 40mm high, extending beyond the refractory brick and penetrating the circular hole reserved in the refractory brick 2 as a whole; the platinum thin rod 4 is a circular solid cross-section with a diameter of 3mm and a height of 8mm. 0mm to 150mm, adapted according to the height of the refractory brick layout at different positions, which can meet the maximum collapse displacement of the cooling tube body 1; a one-way gap of more than 25mm is reserved between the platinum rod 4 and the ceramic sleeve 3, that is, the platinum rod 4 is attached to the front wall of the ceramic sleeve 3, i.e. the first wall, when installed, to meet the axial expansion displacement of the internal cooling tube body 1 during the heating stage, ensuring that the platinum rod 4 is continuously in a vertical state without interference; the connecting platinum sheet 5 is made of a platinum-rhodium alloy material with a thickness of 1mm and a length of 15mm. It is connected to the upper surface of the cooling tube body 1 by four-corner electric welding, and is also connected to the upper platinum rod 4 by welding. It is the measuring component of the present invention; after the cooling tube is heated and expanded, the exposed platinum rod is cut off, and the square gap inside the ceramic sleeve is sealed with thermal insulation cotton or alumina powder.

[0036] The present invention is described in further detail below with reference to the embodiments:

[0037] Example 1

[0038] A structure that can detect the amount of temperature rise and collapse of channel cooling pipes online, see Figure 1 The overall structure diagram includes a cooling tube body 1, refractory bricks 2, a ceramic sleeve 3, a platinum thin rod 4 and a connecting platinum sheet 5.

[0039] The refractory brick 2 is a hollow structure with a certain strength, which is used to support and heat the cooling pipe body 1. There is no mutual pressure between the refractory brick 2 and the cooling pipe body 1. The cooling pipe body 1 is penetrated inside the refractory brick 2. Figure 2 The cooling tube body 1 is a tube with flat upper and lower surfaces. It is made of platinum-rhodium alloy material and has the ability to resist high temperature and oxidation volatilization. It is the main structure of the platinum channel. During the glass preparation process, the interior of the tube is filled with high-temperature molten glass, generally above 1350°C. The upper part of the refractory brick 2 is provided with a through hole, and the inside of the through hole is connected to a ceramic sleeve 3 made of corundum with mortar.

[0040] The upper surface of the cooling tube body 1 is fixedly connected with a connecting platinum sheet 5 made of platinum-rhodium alloy material by four-corner electric welding. A solid platinum thin rod 4 is vertically welded on the connecting platinum sheet 5. The connecting platinum sheet 5 is used to protect the cooling tube body 1 and act as a buffer connection; the platinum thin rod 4 passes through the ceramic sleeve 3, and there is a fitting gap between the platinum thin rod 4 and the ceramic sleeve 3, and has independent movement space.

[0041] Among them, the cross-section of the ceramic sleeve 3 is rectangular, with a length of 30 mm, a width of 8 mm, and a height of 40 mm; the cross-section of the through hole is rectangular, with a length of 40 mm and a width of 12 mm; the cross-section of the platinum rod 4 is circular, with a diameter of 3 mm and a height of 80 mm; the thickness of the connecting platinum sheet 5 is 1 mm, the length is 10 mm, and the width is 10 mm; the platinum rod 4 is located at the center of the ceramic sleeve 3, and the distance from the platinum rod 4 to the front wall of the ceramic sleeve 3, i.e., the first wall 3-1, is equal to the distance from the platinum rod 4 to the second wall 3-2 of the ceramic sleeve 3.

[0042] Example 2

[0043] A structure that can detect the amount of temperature rise and collapse of channel cooling pipes online, see Figure 1 The overall structure diagram includes a cooling tube body 1, refractory bricks 2, a ceramic sleeve 3, a platinum thin rod 4 and a connecting platinum sheet 5.

[0044] The refractory brick 2 is a hollow structure with a certain strength, which is used to support and heat the cooling pipe body 1. There is no mutual pressure between the refractory brick 2 and the cooling pipe body 1. The cooling pipe body 1 is penetrated inside the refractory brick 2. Figure 2 The cooling tube body 1 is a tube with flat upper and lower surfaces. It is made of platinum-rhodium alloy material and has the ability to resist high temperature and oxidation volatilization. It is the main structure of the platinum channel. During the glass preparation process, the interior of the tube is filled with high-temperature molten glass, generally above 1350°C. The upper part of the refractory brick 2 is provided with a through hole, and the inside of the through hole is connected to a ceramic sleeve 3 made of corundum with mortar.

[0045] The upper surface of the cooling tube body 1 is fixedly connected with a connecting platinum sheet 5 made of platinum-rhodium alloy material by four-corner electric welding. A solid platinum thin rod 4 is vertically welded on the connecting platinum sheet 5. The connecting platinum sheet 5 is used to protect the cooling tube body 1 and act as a buffer connection; the platinum thin rod 4 passes through the ceramic sleeve 3, and there is a fitting gap between the platinum thin rod 4 and the ceramic sleeve 3, and has independent movement space.

[0046] Among them, the cross-section of the ceramic sleeve 3 is rectangular, with a length of 30 mm, a width of 8 mm, and a height of 40 mm; the cross-section of the through hole is rectangular, with a length of 40 mm and a width of 12 mm; the cross-section of the platinum rod 4 is circular, with a diameter of 3 mm and a height of 150 mm; the thickness of the connecting platinum sheet 5 is 1 mm, the length is 15 mm, and the width is 15 mm; the platinum rod 4 is close to the first wall 3-1 of the ceramic sleeve 3, and the distance from the platinum rod 4 to the second wall 3-2 of the ceramic sleeve 3 is 26 mm.

[0047] See also Figure 3 When the top of the cooling tube body 1 collapses due to high temperature, the upper surface of the cooling tube body 1 drives the platinum rod 4 to move downward. At the same time, due to the fitting clearance between the platinum rod 4 and the ceramic sleeve 3, sufficient free space is provided for the platinum rod 4 to move downward. The amount of collapse of the top of the cooling tube body 1 can be determined by measuring the height of the platinum rod 4 above the ceramic sleeve 3 before and after the collapse.

[0048] The above content is only for explaining the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A structure capable of online detection of the temperature rise and collapse of a channel cooling pipe, characterized in that: It comprises a cooling tube body (1), refractory bricks (2), a ceramic sleeve (3), a platinum thin rod (4) and a connecting platinum sheet (5); The refractory brick (2) is a hollow structure, through which a cooling tube body (1) is passed. The cooling tube body (1) is a tube body with flat upper and lower surfaces. A through hole is provided on the upper part of the refractory brick (2). A ceramic sleeve (3) is fixedly connected in the through hole. A connecting platinum sheet (5) is fixedly connected to the upper surface of the cooling tube body (1). A platinum thin rod (4) is vertically fixed on the connecting platinum sheet (5). The platinum thin rod (4) passes through the ceramic sleeve (3) and is in clearance fit with the ceramic sleeve (3). The ceramic sleeve (3) is not lower than the height of the through hole, and the platinum thin rod (4) is higher than the sum of the heights of the ceramic sleeve (3) and the cooling tube body (1).

2. The structure capable of online detecting the temperature rise and collapse of a channel cooling pipe according to claim 1, characterized in that: The distance between the platinum thin rod (4) and the first wall surface (3-1) of the ceramic sleeve (3) is smaller than the distance between the platinum thin rod (4) and the second wall surface (3-2).

3. The structure capable of online detecting the temperature rise and collapse of a channel cooling pipe according to claim 1, characterized in that: The connecting platinum sheet (5) is fixedly connected to the upper surface of the cooling tube body (1) by four-corner electric welding.

4. The structure capable of online detecting the temperature rise and collapse of a channel cooling pipe according to claim 1, characterized in that: The cooling tube body (1) is made of a platinum-rhodium alloy material.

5. The structure capable of online detecting the temperature rise and collapse of a channel cooling pipe according to claim 1, characterized in that: The connecting platinum sheet (5) is made of a platinum-rhodium alloy material.

6. The structure capable of online detecting the temperature rise and collapse of a channel cooling pipe according to claim 1, characterized in that: The platinum thin rod (4) is fixed vertically to the connecting platinum sheet (5) by welding.

7. The structure capable of online detecting the temperature rise and collapse of a channel cooling pipe according to claim 1, characterized in that: The platinum thin rod (4) is solid, and its cross section is one of rectangular, square and circular.

8. The structure capable of online detecting the temperature rise and collapse of a channel cooling pipe according to claim 1, characterized in that: The cross section of the through hole is one of rectangular, square and circular.

9. The structure capable of online detecting the temperature rise and collapse of a channel cooling pipe according to claim 1, characterized in that: The ceramic sleeve (3) is made of corundum material, and has a cross-section that is one of rectangular, square, and circular. The ceramic sleeve (3) is fixedly connected to the through hole by means of cement.

10. The structure capable of online detecting the temperature rise and collapse of a channel cooling pipe according to claim 1, characterized in that: The cross section of the ceramic sleeve (3) is rectangular, 30 mm in length, 8 mm in width, and 40 mm in height; the cross section of the through hole is rectangular, 40 mm in length, and 12 mm in width; the cross section of the platinum thin rod (4) is circular, 3 mm in diameter, and 80-150 mm in height; the thickness of the connecting platinum sheet (5) is 1 mm, 10-15 mm in length, and 10-15 mm in width; and the distance between the platinum thin rod (4) and the second wall surface (3-2) of the ceramic sleeve is greater than 25 mm.

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