Platinum channel flange thermal expansion measuring equipment and platinum channel

Abstract

The utility model provides platinum channel flange thermal expansion measuring equipment and a platinum channel, the platinum channel flange thermal expansion measuring equipment comprises a connecting assembly, the connecting assembly is connected with a to-be-measured flange, the connecting assembly comprises an expansion structure, the diameter of the expansion structure and the diameter of the to-be-measured flange are located on the same straight line, and the diameter of the expansion structure is larger than the diameter of the to-be-measured flange. The expansion structure has a to-be-measured end face away from the axis of the to-be-measured flange. And the measuring assembly comprises a displacement measuring structure, and the displacement measuring structure is arranged towards the to-be-measured end face. According to the technical scheme, the problem that in the glass machining process in the prior art, the platinum channel is prone to damage due to the fact that the thermal expansion amount of the flange is not monitored in real time is effectively solved.

Description

Technical Field

[0001] This application relates to the technical field of glass processing, and more particularly to a platinum channel flange thermal expansion measuring device and a platinum channel. Background Technology

[0002] In the production of cover glass, platinum channels are often used to obtain a clear and homogenized glass melt. Platinum channels are typically made of an alloy containing over 90% platinum, making them very expensive. To ensure the strength and sealing of the platinum channel joints, flange connections are usually used, with a heating power source connected to the flange. This allows the flange of the platinum channel to not only serve a connecting function but also to provide localized heating for the platinum channel, ensuring its temperature is controlled within the desired range through heat exchange with the glass melt.

[0003] The platinum channel is almost entirely encased in insulation material. When selecting insulation, a material with a coefficient of thermal expansion close to that of the platinum channel is typically chosen to minimize potential damage from thermal stress. However, the coefficients of thermal expansion of the insulation material and the platinum channel are not perfectly identical. The coefficients of thermal expansion do not exhibit a linear relationship over a wide temperature range, and platinum, being relatively soft, is more susceptible to damage under stress variations, thus reducing the service life of the platinum channel. The flange section of the platinum channel is the weakest point, and damage typically concentrates here. Therefore, regular monitoring of the flange's thermal expansion is essential.

[0004] In the existing technology, because the expansion of the flange is not accurately measured in real time, the temperature of the platinum channel cannot be adjusted in time, which makes the platinum channel prone to damage and has a short service life, such as CN115818930A. Utility Model Content

[0005] One of the technical problems this application aims to solve is that, during the glass processing, the platinum channel is prone to damage due to the lack of real-time monitoring of the flange's thermal expansion.

[0006] To address the aforementioned technical problems, this application provides a platinum channel flange thermal expansion measuring device and a platinum channel.

[0007] According to this application, a platinum channel flange thermal expansion measuring device includes: a connecting assembly connected to a flange to be measured, the connecting assembly including an expansion structure whose diameter is on the same straight line as the flange to be measured, and the expansion structure having a measuring end face at its axis away from the flange to be measured; and a measuring assembly including a displacement measuring structure disposed toward the measuring end face.

[0008] In some embodiments, the length of the expansion structure along the radial direction of the flange to be measured is 1 to 1.5 times the outer diameter of the flange to be measured.

[0009] In some embodiments, the expansion structure is columnar, and the cross-sectional shape of the expansion structure is square.

[0010] In some embodiments, the minimum cross-sectional area of ​​the expansion structure is 4 square centimeters.

[0011] In some embodiments, the connection assembly further includes a connection structure connected to the flange to be measured, and an expansion structure connected to the connection structure.

[0012] In some embodiments, the connection structure includes a first clamping part, a second clamping part, and a transition section. The first clamping part and the second clamping part are both connected to the first end of the transition section. There is a predetermined gap between the first clamping part and the second clamping part. The first clamping part and the second clamping part are respectively disposed on both sides of the flange to be measured. The expansion structure is connected to the second end of the transition section.

[0013] In some embodiments, the cross-sectional area of ​​the transition section continuously decreases along the direction from the first end to the second end of the transition section.

[0014] In some embodiments, the measuring assembly further includes a laser emitter disposed toward the end face to be measured, and the laser emitter and the end face to be measured have a predetermined angle.

[0015] In some embodiments, the displacement measuring structure is located on the reflection path of the laser emitted by the laser emitter.

[0016] According to another aspect of this application, a platinum channel is also provided, which employs the aforementioned platinum channel flange thermal expansion measuring device. The platinum channel includes a platinum channel body and a connecting flange, and a connecting assembly is connected to the connecting flange.

[0017] The platinum channel flange thermal expansion measuring device provided in this application, through the above technical solution, installs a connecting assembly on the flange to be measured. The connecting assembly is made of a material with a known coefficient of thermal expansion. The displacement of the end face to be measured is measured using a displacement measuring structure. The expansion of the connecting assembly is calculated using its coefficient of thermal expansion. The difference between the displacement of the end face to be measured and the expansion of the connecting assembly is the expansion of the flange in its radial direction. This technical solution effectively solves the problem in existing technologies where, during glass processing, the platinum channel is easily damaged due to the lack of real-time monitoring of flange thermal expansion. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This paper shows a schematic diagram of the connection assembly of the platinum channel flange thermal expansion measuring device disclosed in Embodiment 1 of this application;

[0020] Figure 2 It shows Figure 1 A top view of the connection components of the platinum channel flange thermal expansion measurement device;

[0021] Figure 3 It shows Figure 1 A schematic diagram of the measuring components of the platinum channel flange thermal expansion measuring device.

[0022] Explanation of reference numerals in the attached figures:

[0023] 10. Connecting component; 11. Expansion structure; 111. End face to be measured; 12. Connecting structure; 121. First clamping part; 122. Second clamping part; 123. Transition section; 20. Measuring component; 21. Displacement measuring structure; 22. Laser emitter. Detailed Implementation

[0024] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments of the application herein, but includes all technical solutions falling within the scope of the claims.

[0025] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0026] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application 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 this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0028] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0029] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0030] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0031] like Figures 1 to 3As shown, the platinum channel flange thermal expansion measuring device disclosed in Embodiment 1 of this application includes: a connecting assembly 10 and a measuring assembly 20. The connecting assembly 10 is connected to the flange to be measured. The connecting assembly 10 includes an expansion structure 11. The diameter of the expansion structure 11 and the flange to be measured are on the same straight line. The expansion structure 11 has a measuring end face 111 at its axis away from the flange to be measured. The measuring assembly 20 includes a displacement measuring structure 21. The displacement measuring structure 21 is disposed toward the measuring end face 111.

[0032] Applying the technical solution of Embodiment 1, the connecting assembly 10 is installed on the flange to be measured. The connecting assembly 10 is made of a material with a known coefficient of thermal expansion. The displacement of the end face 111 to be measured is measured using the displacement measuring structure 21. The expansion amount of the connecting assembly 10 is calculated using its coefficient of thermal expansion. The difference between the displacement of the end face 111 to be measured and the expansion amount of the connecting assembly 10 is the expansion amount of the flange in its radial direction. The technical solution of Embodiment 1 effectively solves the problem in the prior art where, during glass processing, the platinum channel is easily damaged due to the lack of real-time monitoring of the flange's thermal expansion.

[0033] like Figure 1 and Figure 2 As shown, in the technical solution of Embodiment 1, the length of the expansion structure 11 along the radial direction of the flange to be measured is 1 to 1.5 times the outer diameter of the flange to be measured. When the length of the expansion structure 11 along the radial direction of the flange to be measured is less than 1 times the outer diameter of the flange to be measured, the length of the expansion structure 11 is small, the expansion amount is not obvious, and the measurement result error is large. When the length of the expansion structure 11 along the radial direction of the flange to be measured is greater than 1.5 times the outer diameter of the flange to be measured, the length of the expansion structure 11 is large, and the expansion structure 11 is prone to bending and deformation due to its own weight and the high temperature environment, resulting in inaccurate measurement results.

[0034] like Figure 1 and Figure 2 As shown, in the technical solution of Embodiment 1, the expansion structure 11 is columnar, and the cross-sectional shape of the expansion structure 11 is square. The uniform shape of the columnar structure further prevents the expansion structure 11 from bending under the action of gravity. In other embodiments, the cross-sectional shape of the expansion structure 11 can also be circular, regular polygonal, etc.

[0035] like Figure 1 and Figure 2As shown, in the technical solution of Embodiment 1, the minimum cross-sectional area of ​​the expansion structure 11 is 4 square centimeters. When the cross-sectional area of ​​the expansion structure 11 is less than 4 square centimeters, the expansion structure 11 is too thin and is prone to deformation under high temperature conditions, leading to incorrect expansion measurement results. Typically, the cross-sectional area of ​​the expansion structure 11 is less than 10 square centimeters to avoid excessive cost and to prevent placing a large load on the flange being measured, thus avoiding affecting its service life due to excessive external force.

[0036] like Figure 1 and Figure 2 As shown, in the technical solution of Embodiment 1, the connecting assembly 10 further includes a connecting structure 12, which is connected to the flange to be measured, and an expansion structure 11 is connected to the connecting structure 12. The connecting structure 12 is used to fix the entire connecting assembly to the flange to be measured, thereby measuring the expansion amount of the flange.

[0037] like Figure 1 and Figure 2 As shown, in the technical solution of Embodiment 1, the connecting structure 12 includes a first clamping part 121, a second clamping part 122, and a transition section 123. The first clamping part 121 and the second clamping part 122 are both connected to the first end of the transition section 123. There is a predetermined gap between the first clamping part 121 and the second clamping part 122. The first clamping part 121 and the second clamping part 122 are respectively disposed on both sides of the flange to be measured. The expansion structure 11 is connected to the second end of the transition section 123. The distance between the first clamping part 121 and the second clamping part 122 is equal to the width of the flange to be measured. The flange to be measured is located between the two close surfaces of the first clamping part 121 and the second clamping part 122. The first end face of the transition section 123 is an arc surface that matches the shape of the outer surface of the flange. Fixing holes are provided on the first clamping part 121 and the second clamping part 122. Fixing holes are also provided at the corresponding positions of the flange. The connecting structure 12 is fixed to the flange by bolts. At this time, the first end face of the transition section 123 is fitted with the flange to prevent the connecting assembly 10 from shaking.

[0038] like Figure 1 and Figure 2 As shown, in the technical solution of Embodiment 1, the cross-sectional area of ​​the transition section 123 continuously decreases along the direction from the first end to the second end of the transition section 123. To ensure connection strength, multiple connection points are usually required. In Embodiment 1, there are three connection points. Therefore, the first clamping part 121 and the second clamping part 122 are usually larger in size, while the expansion structure 11 is smaller in size. The transition section 123 is placed between the two to play a transitional role.

[0039] In Example 1, the entire connecting component 10 is a one-piece molded structure, which further improves the strength of the entire structure. The material is 304 stainless steel to ensure that the material has no damaging components to platinum, that is, the material cannot contain a lot of reducing impurities such as carbon. The bolts used also need to be made of the same material to prevent electrochemical corrosion.

[0040] like Figure 3 As shown, in the technical solution of Embodiment 1, the measuring component 20 further includes a laser emitter 22, which is positioned towards the end face 111 to be measured, and a predetermined angle exists between the laser emitter 22 and the end face 111. The laser emitter 22 emits a laser beam, which is reflected when it hits the end face to be measured. The displacement of the end face to be measured can be calculated from the position of the reflected light. The expansion amount of the expansion structure 11 is calculated based on the current temperature. By combining the displacement and the expansion amount of the expansion structure 11, the expansion amount of the flange can be calculated, so as to adjust the process in time to avoid flange damage. The laser emitter 22 is a He-Ne laser with a wavelength of 632.8 nm.

[0041] like Figure 3 As shown, in the technical solution of Embodiment 1, the displacement measuring structure 21 is located on the reflection path of the laser emitted by the laser emitter 22. The displacement measuring structure 21 uses a laser displacement sensor to measure the displacement of the reflected light. The expansion of the flange is calculated in the above manner.

[0042] The difference between the technical solution of Embodiment 2 and Embodiment 1 is that the first clamping part 121 and the second clamping part 122 are movably connected to the transition section 123. The aforementioned movement direction is parallel to the flange axis. By moving the first clamping part 121 and the second clamping part 122, the distance between them is changed, thereby making the connection structure 12 applicable to flanges of different thicknesses, thus increasing its versatility. A sliding groove is provided on the transition section 123. The first clamping part 121 has a first protrusion, and the second clamping part 122 has a second protrusion. Both the first and second protrusions are movably disposed within the sliding groove. The sliding groove is a dovetail groove to prevent the first clamping part 121 and the second clamping part 122 from falling off. An opening is made at the end face of the sliding groove, and a screw is inserted through it. The screw includes a first threaded section and a second threaded section. The first protrusion engages with the first threaded section, and the second protrusion engages with the second threaded section. Rotating the screw causes the first clamping part 121 and the second clamping part 122 to move simultaneously, moving closer to or further away from each other.

[0043] The platinum channel utilizes the aforementioned platinum channel flange thermal expansion measurement device. The platinum channel includes a main body and a connecting flange, with the connecting assembly 10 connected to the connecting flange. The platinum channel also includes an insulated wall and a transparent window. The main body of the platinum channel is located inside the insulated wall, and the transparent window is located on the insulated wall. The end face to be measured 111 faces the transparent window. The measuring assembly 20 is located on the outside of the insulated wall to prevent the high-temperature environment inside the insulated wall from affecting the normal operation of the measuring assembly 20. The transparent window uses a quartz glass lens to reduce the influence of stray light on the laser beam path and lower detection errors.

[0044] In summary, the platinum channel flange serves as a connection and provides localized heating, making it a key area requiring monitoring in the glass manufacturing process. A dynamic measurement device for the thermal expansion of the end face of a platinum channel flange in cover glass (platinum channel flange thermal expansion measuring equipment) includes: clamping surfaces, clamping structures (first clamping part 121 and second clamping part 122), an extension rod (expansion structure 11), and an expansion measuring device (measuring component 20). Two clamping surfaces are provided, arranged parallel to each other, with a clamping structure between them. One end of the extension rod is connected to the two clamping surfaces, and the distance between the two clamping surfaces is the same as the thickness of the flange body. One end of the extension rod is connected to the expansion measuring device. The expansion measuring device mainly consists of two parts: one part is the measurement surface of the extension part and its material thermal expansion, which is known; the other part is a laser measuring device. In the implementation of the scheme, the measurement value of the laser measuring device is the sum of the material expansion and the platinum channel flange expansion. However, what actually needs to be monitored is the one-dimensional expansion of the platinum channel flange end face, so the thermal expansion of the extension part due to temperature needs to be excluded. The flange side lead-out measuring device, as shown in the figure, includes the surface to be measured (measured end face 111), a clamping surface, fastening bolts, and an extension rod. For the lead-out measuring device, 304 stainless steel is recommended as the preferred material to ensure it contains no components that could damage platinum; that is, the material should not contain excessive amounts of reducing impurities such as carbon (C). The bolts used should also be made of the same material to prevent electrochemical corrosion. A laser of the wavelength emitted by the laser emitter (laser emitter 22) (a He-Ne laser with a wavelength of 632.8 nm is recommended) is focused onto the surface to be tested through the measuring window. The laser undergoes diffuse reflection at the sample end face. The laser displacement sensor (displacement measuring structure 21) outside the channel receives the diffusely reflected laser signal. The sensor converts the laser signal to obtain the sample displacement. A calculator then collects and processes the high-temperature data, and the data from the laser displacement sensor yields the coefficient of thermal expansion. A quartz glass lens is used in the measuring window to reduce the influence of stray light on the laser path. Using a laser measuring device ensures that the measurement is unaffected by the external environment, reducing sources of error. The use of a laser displacement sensor significantly improves measurement accuracy and simplifies the experimental setup, reducing costs. However, due to the introduction of an extension rod connected to the flange, thermal expansion will be factored into the measurement results, requiring deduction for this expansion. Therefore, when selecting materials for the extension rod and other components, the coefficient of thermal expansion at the known application temperature must be chosen and recorded in the measurement system. The corresponding thermal expansion must then be deducted based on the ambient temperature variation range during measurement.

[0045] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions of this application based on the above description.

[0046] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A platinum gold channel flange thermal expansion measurement apparatus characterized by, The application relates to a platinum channel flange thermal expansion measurement device. The connecting assembly (10) is connected with a flange to be measured, and comprises an expansion structure (11) which is in the same straight line with the diameter of the flange to be measured and has a to-be-measured end surface (111) away from the axis center of the flange to be measured. The expansion structure (11) has a length of 1-1.5 times the outer diameter of the flange to be measured in the radial direction of the flange to be measured.

2. The platinum channel flange thermal expansion measurement apparatus of claim 1, wherein, The expansion structure (11) is columnar, and the cross-sectional shape of the expansion structure (11) is square.

3. The platinum channel flange thermal expansion measurement apparatus of claim 1, wherein, The minimum cross-sectional area of the expansion structure (11) is 4 square centimeters.

4. The platinum channel flange thermal expansion measurement apparatus of claim 1, wherein, The connecting assembly (10) further comprises a connecting structure (12) connected with the flange to be measured, and the expansion structure (11) is connected with the connecting structure (12).

5. The platinum channel flange thermal expansion measurement apparatus of claim 1, wherein, The connecting structure (12) comprises a first clamping part (121), a second clamping part (122) and a transition section (123), the first clamping part (121) and the second clamping part (122) are both connected with the first end of the transition section (123), the first clamping part (121) and the second clamping part (122) have a predetermined gap therebetween, the first clamping part (121) and the second clamping part (122) are respectively arranged on the two sides of the flange to be measured, and the expansion structure (11) is connected with the second end of the transition section (123).

6. The platinum channel flange thermal expansion measurement apparatus of claim 5, wherein, In the direction from the first end of the transition section (123) to the second end of the transition section (123), the cross-sectional area of the transition section (123) continuously decreases.

7. The platinum channel flange thermal expansion measurement apparatus of claim 6, wherein, The measurement assembly (20) further comprises a laser emitter (22) arranged towards the to-be-measured end surface (111), and the laser emitter (22) has a predetermined included angle with the to-be-measured end surface (111).

8. The platinum channel flange thermal expansion measurement apparatus of claim 1, wherein, The displacement measurement structure (21) is located on the reflection path of the laser emitted by the laser emitter (22).

9. The platinum channel flange thermal expansion measurement apparatus of claim 8, wherein, The platinum channel adopts the platinum channel flange thermal expansion measurement device according to any one of claims 1-9, and the platinum channel comprises a platinum channel body and a connecting flange, and the connecting assembly (10) is connected with the connecting flange.

10. A platinum channel, characterized in that, ​

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