Cooling section platinum channel liquid level manual measuring device for preparing cover plate glass

Abstract

The utility model discloses a cooling section platinum channel liquid level manual measuring device for preparing cover plate glass, and belongs to the technical field of glass liquid level measurement, a positioning frame comprises a first cylindrical section, a transition section and a second cylindrical section which are of an integrated structure, and the inner diameter and the outer diameter of the first cylindrical section are larger than the inner diameter and the outer diameter of the second cylindrical section respectively. The upper end of the transition section is smoothly connected with the lower end of the first cylindrical section, the lower end of the transition section is smoothly connected with the upper end of the second cylindrical section, central axes of the first cylindrical section, the transition section and the second cylindrical section are collinearly distributed, and the inner diameter of the first cylindrical section is larger than that of the transition section; the second cylindrical section is communicated with the platinum channel in the vertical direction, the limiting stopper is clamped in the inner wall of the first cylindrical section, the lower surface of the limiting stopper is in contact with the joint of the first cylindrical section and the transition section, the upper half section of the probe is fixed in the limiting stopper, the bottom of the probe is of an inverted conical structure, and the bottom of the probe faces molten glass; and while the measurement accuracy is improved, a large amount of glass liquid brought out by the tip of the probe is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of glass liquid level measurement technology, specifically a manual liquid level measuring device for the cooling section platinum channel in the preparation of cover glass. Background Technology

[0002] In the overflow process of cover glass production, the liquid level in the platinum channel of the glass furnace located in the cooling section is closely related to the final production quality of the cover glass. By observing the changes in the liquid level, it is possible to judge the changes in key parameters such as the amount drawn out, furnace pressure, and furnace temperature, and thus determine whether the production conditions meet the standards. This is a commonly used monitoring method in cover glass production.

[0003] Platinum channel liquid level measurement is generally divided into two modes: automatic and manual. Automatic measurement is used for daily production and transmits the obtained data to the DCS control system in real time. Manual measurement serves as a backup method to replace automatic measurement when it fails. However, since this situation rarely occurs, the more important function is to confirm the actual liquid level and determine whether it is the same as the automatic measurement value.

[0004] Currently, manual measurement involves inserting a liquid level probe directly into the liquid level opening. This method requires a certain level of technical experience from the operator, who determines the liquid level position by feeling the probe tip against the molten glass. This method is not precise, and because the probe is inserted too deeply, a large amount of molten glass is carried out during extraction, adhering to the area around the liquid level opening. This contaminates the molten glass, negatively impacting production conditions and ultimately affecting the quality of the cover glass. While platinum channel level measurement devices exist, they require an auxiliary level measuring tube. For the platinum channel in the cooling section of the cover glass, the only connection between the platinum channel and the outside world is a small-diameter cylindrical channel. This structure makes it impossible to directly install a level measuring tube and also hinders the proper operation of the probe. Therefore, there is an urgent need to design a manual level measurement device for the platinum channel in the cooling section of the cover glass overflow production process to solve the problems of inaccurate liquid level measurement due to experience-based operation and the large amount of molten glass carried out by the probe tip. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a manual liquid level measuring device for the platinum channel in the cooling section of cover glass preparation, which solves the problems of inaccurate liquid level measurement caused by experience-based operation and the large amount of glass liquid carried out by the probe tip. It improves the measurement accuracy while reducing the large amount of glass liquid carried out by the probe tip.

[0006] This utility model is achieved through the following technical solution:

[0007] A manual measuring device for measuring the liquid level in a platinum channel of a cooling section for the preparation of cover glass includes a limiter, a positioning frame, and a probe;

[0008] The positioning frame includes a first cylindrical section, a transition section, and a second cylindrical section, all of which are integrally formed. The inner and outer diameters of the first cylindrical section are larger than those of the second cylindrical section, respectively. The upper end of the transition section is smoothly connected to the lower end of the first cylindrical section, and the lower end of the transition section is smoothly connected to the upper end of the second cylindrical section. The central axes of the first cylindrical section, the transition section, and the second cylindrical section are collinearly distributed. The inner diameter of the first cylindrical section is larger than that of the transition section.

[0009] The second cylindrical segment is connected to the platinum channel in the vertical direction. The limiter is engaged in the inner wall of the first cylindrical segment. The lower surface of the limiter contacts the junction of the first cylindrical segment and the transition segment. The upper half of the probe is fixed in the limiter. The bottom of the probe has an inverted conical structure and the bottom of the probe faces the molten glass.

[0010] The further improvement of this utility model is as follows:

[0011] The limiter includes a first limit block and a second limit block that are identical in shape and size. The first limit block and the second limit block form the limiter body. Both the first limit block and the second limit block have a semi-circular through groove along their height direction. After the first limit block and the second limit block are aligned and fixed, the two through grooves form a cylindrical channel and the inner wall is fitted with the corresponding tube wall of the probe. The probe is fixed in the cylindrical channel.

[0012] The center of the cylindrical channel coincides with the center of the limiter body.

[0013] The first and second limiting blocks are aligned, attached, and fixed to form a cube-shaped limiting device body.

[0014] The limiter also includes two fastening screws, which are installed in the limiter body along a direction perpendicular to the cylindrical channel and are symmetrically distributed on both sides of the cylindrical channel.

[0015] The fastening screws are distributed horizontally in the limiter body, and the length of the fastening screws is greater than the side length of the limiter body and less than the inner diameter of the first cylindrical section.

[0016] The first limiting block, the second limiting block, and the fastening screw are all made of fire-resistant steel.

[0017] The first cylindrical section, the transition section, and the second cylindrical section are all constructed of refractory bricks.

[0018] The inner diameter of the second cylindrical section is equal to the inner diameter of the transition section.

[0019] The probe is L-shaped, with the upper half of the vertical side of the probe fixed in the limiter, the bottom of the vertical side of the probe facing the molten glass, and the horizontal side of the probe higher than the upper end face of the first cylindrical section.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects:

[0021] This invention relates to a manual liquid level measuring device for a platinum channel in the cooling section of a cover glass manufacturing process. The positioning frame is designed with a first cylindrical section, a transition section, and a second cylindrical section with different inner diameters. This design facilitates the fixing of a limiter at the junction of the first and transition sections. The limiter secures the upper half of the probe. The central axes of the first, transition, and second cylindrical sections are collinear, ensuring the probe can be smoothly inserted into the positioning frame from top to bottom. The second cylindrical section, vertically connected to the platinum channel, allows the bottom of the probe to contact the molten glass. The lower part of the probe is moved downwards within the second cylindrical section until it contacts the liquid level opening formed by the step at the junction of the limiter and the first and transition sections. The distance to the liquid level is then measured stably. After waiting 20 seconds, the lower part of the probe is slowly withdrawn. The operation is simple. This device effectively fixes the depth of the probe tip, improving the accuracy of manual measurements and reducing the amount of molten glass adhering to the liquid level opening, thus reducing the risk of contamination. The probe's depth needs to be pre-adjusted based on the liquid level feedback from the automatic measurement before each measurement. This method of setting a fixed extension length for measuring the liquid level in the channel improves measurement accuracy and reduces the problem of molten glass being carried out by the probe tip. It also solves the problem of significant discrepancies between manually measured and automatically measured liquid levels, which relies on the operator's experience. Compared to not using a limiter, using a limiter provides greater stability because it avoids human error caused by hand movements during manual measurement, thus making the measurement results more reliable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the limiter described in this utility model.

[0023] Figure 2 This is a schematic diagram of the assembly structure of the limiter and probe described in this utility model.

[0024] Figure 3 This is a schematic diagram of the structure of the manual liquid level measuring device for the platinum channel described in this utility model.

[0025] Figure 4 This is a schematic diagram of the overall platinum channel liquid level manual measuring device and the platinum channel described in this utility model.

[0026] In the diagram: 1. Limiter; 2. Fastening screw; 3. Cylindrical channel; 4. Probe; 5. Liquid level port; 6. Refractory brick; 7. Platinum channel; 11. First limit block; 12. Second limit block. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] This utility model discloses a manual liquid level measuring device for the cooling section of the platinum channel in the preparation of cover glass, such as... Figure 4 As shown, it mainly includes a limiter 1, a probe 4, and a positioning frame made of refractory bricks 6.

[0031] like Figure 3 As shown, the positioning frame includes a first cylindrical section, a transition section, and a second cylindrical section, all three forming a single unit. The inner diameter of the first cylindrical section is larger than that of the second cylindrical section, and the outer diameter of the first cylindrical section is also larger than that of the second cylindrical section. Simultaneously, the upper end of the transition section smoothly connects to the lower end of the first cylindrical section, and the lower end of the transition section smoothly connects to the upper end of the second cylindrical section, making the transition section an inverted isosceles trapezoidal structure. The central axes of the first cylindrical section, the transition section, and the second cylindrical section are collinear, allowing the probe 4 to be inserted. The inner diameter of the first cylindrical section is larger than that of the transition section. The limiter 1 engages with the inner wall of the first cylindrical section, and its lower surface contacts the stepped position at the junction of the two sections. The second cylindrical section is vertically connected to the platinum channel 7. Thus, when the upper half of the probe 4 is fixed in the limiter 1, the bottom of the probe 4 can face the molten glass. The bottom (i.e., the tip) of the probe 4 has an inverted conical structure, ensuring sufficient contact with the molten glass.

[0032] The limiter 1 specifically includes two fastening screws 2, and a first limit block 11 and a second limit block 12 that are identical in shape and size, as shown below. Figure 1As shown, the first limiting block 11 and the second limiting block 12, after being aligned and fixed together, form a cubic structure of the limiter body. Both the first limiting block 11 and the second limiting block 12 have semi-circular through slots along their height. After alignment and fixing, the two through slots form a cylindrical channel 3. Simultaneously, the inner wall of the cylindrical channel 3 fits against the corresponding tube wall of the probe 4, thus fixing the probe 4 within the cylindrical channel 3. The center of the cylindrical channel 3 coincides with the center of the limiter body, allowing the probe 4 to be located at the center of the positioning frame channel. Two fastening screws 2 are installed in the limiter body along a direction perpendicular to the cylindrical channel 3. Specifically, the fastening screws 2 are symmetrically distributed on both sides of the cylindrical channel 3 and horizontally distributed within the limiter body. This requires the length of the fastening screws 2 to be greater than the side length of the limiter body and less than the inner diameter of the first cylindrical section; a length of 50mm is generally sufficient to meet the clamping requirements of the first limiting block 11 and the second limiting block 12.

[0033] In this utility model, the limiter 1 is made of fire-resistant steel with a side length of 100mm. This allows the first limit block 11, the second limit block 12, and the fastening screw 2 to all be made of fire-resistant steel, while also reducing the overall weight.

[0034] Specifically, the inner diameter of the second cylindrical section is equal to the inner diameter of the transition section.

[0035] Probe 4 is designed in an L-shape with a tube wall diameter of 10mm. It uses platinum as the material to improve high-temperature deformation resistance. The vertical side is 500mm, and the upper half is fixed in the limiter 1. Figure 2 As shown, the bottom of the vertical side of probe 4 faces the molten glass, and the horizontal side of probe 4 is higher than the upper end of the first cylindrical section. The length is 100mm, which facilitates manual operation and avoids burns during operation.

[0036] The platinum channel 7 consists of two interconnected sections. The bottom section is tubular, with its outer surface covered by insulation material. The outermost part is constructed of refractory bricks 6. A cylindrical vertical channel extends upward from the upper end of the bottom section, through which the molten glass flows upward. The liquid level is generally higher than the upper surface of the insulation material. The interior of the vertical channel is lined with refractory bricks 6. Continuing upward along this position, refractory bricks 6 are laid to form a liquid surface channel, ultimately forming the second cylindrical section of the positioning frame. This allows the second cylindrical section to connect vertically with the platinum channel 7. The stepped position at the junction of the first cylindrical section and the transition section is the liquid surface opening 5, with an inner diameter of 80mm. Therefore, the liquid surface opening 5 is located at the top of the platinum channel 7, and its lower part is connected to the platinum channel 7. The liquid surface opening 5 is surrounded by refractory bricks 6 for insulation, forming the transition section of the positioning frame and the uppermost first cylindrical section.

[0037] This utility model discloses a manual liquid level measuring device for a platinum channel in a cooling section for the preparation of cover glass. In specific use, a limiter 1 is installed on the probe 4, and the probe 4 passes through the cylindrical channel 3. The first limit block 11, the second limit block 12 and the probe 4 are fixed by fastening screws 2.

[0038] Before the measurement process, based on the liquid level position result fed back by the automatic measurement, the distance between the bottom of the fixed probe 4 and the liquid level opening 5 is adjusted in the limiter 1. By setting a standard distance, the amount of glass liquid contacted by the bottom of the probe 4 is controlled. The lower part of the probe 4 is vertically inserted into the liquid level opening 5 until the limiter 1 contacts the liquid level opening 5, so as to stably measure the liquid level distance.

[0039] The distance between the bottom of probe 4 and the liquid level opening 5 can be adjusted according to the current liquid level standard to adapt to different conditions and avoid excessive contact with the molten glass, which could lead to contamination. The length of probe 4 extending from limiter 1 represents the current liquid level height in the channel. The liquid level position is determined by measuring the distance from the lower end of the limiter to the molten glass. If the automatically measured liquid level position is accurate, the tip of probe 4 will contact the molten glass. Of course, complete contact with the molten glass also indicates that the automatically measured liquid level position is accurate. By controlling the probe tip to be perpendicular to the limiter at a 90° angle, measurement accuracy is improved, and the problem of molten glass being carried out when probe 4 is removed is reduced.

[0040] Of course, if the molten glass has already submerged the tip of probe 4, it means that the liquid level position fed back by the automatic measurement is too low, and vice versa. Of course, this situation is rare. If it occurs, reduce or increase the distance by 5mm accordingly and continue measuring until the tip of probe 4 touches the molten glass.

Claims

1. A manual measuring device for the liquid level in the cooling section of a platinum channel for preparing cover glass, characterized in that, The device comprises a position limiter (1), a positioning frame and a probe (4). The positioning frame comprises a first cylindrical section, a transition section and a second cylindrical section in an integrated structure, the inner and outer diameters of the first cylindrical section are greater than those of the second cylindrical section, the upper end of the transition section is smoothly connected with the lower end of the first cylindrical section, the lower end of the transition section is smoothly connected with the upper end of the second cylindrical section, the central axes of the first cylindrical section, the transition section and the second cylindrical section are in line distribution, and the inner diameter of the first cylindrical section is greater than that of the transition section. The second cylindrical section is connected with a platinum channel (7) in a vertical direction, the position limiter (1) is clamped in the inner wall of the first cylindrical section, the lower surface of the position limiter (1) is in contact with the joint of the first cylindrical section and the transition section, the upper half of the vertical side of the probe (4) is fixed in the position limiter (1), the bottom of the probe (4) is in a reverse conical structure, and the bottom of the probe (4) faces the glass liquid.

2. The apparatus according to claim 1, wherein the apparatus is characterized by: The position limiter (1) comprises first and second position limiting blocks (11, 12) which are the same in shape and size, the first and second position limiting blocks (11, 12) constitute a position limiter body, the first and second position limiting blocks (11, 12) are both provided with a through groove with a semicircular cross section along the height direction thereof, and after the first and second position limiting blocks (11, 12) are fixed in alignment, the two through grooves form a cylindrical channel (3) with an inner wall in abutment with the corresponding tube wall of the probe (4), and the probe (4) is fixed in the cylindrical channel (3).

3. The apparatus according to claim 2, wherein the apparatus is characterized by: The center of the cylindrical channel (3) coincides with the center of the position limiter body.

4. The apparatus according to claim 2, wherein the apparatus is characterized by: The first and second position limiting blocks (11, 12) form a position limiter body in a cuboid structure after being fixed in alignment.

5. The apparatus according to claim 4, wherein the apparatus is characterized by: The position limiter (1) further comprises two fastening screws (2) which are installed in the position limiter body in a direction perpendicular to the cylindrical channel (3) and are symmetrically distributed on both sides of the cylindrical channel (3).

6. The apparatus according to claim 5, wherein the apparatus is characterized by: The fastening screws (2) are distributed in the position limiter body in a horizontal manner, the length of the fastening screws (2) is greater than the side length of the position limiter body and less than the inner diameter of the first cylindrical section.

7. The apparatus according to claim 5, wherein the apparatus is characterized by: The first and second position limiting blocks (11, 12) and the fastening screws (2) are all made of fire-resistant steel.

8. The apparatus according to claim 1, wherein the apparatus is characterized by: The first cylindrical section, the transition section and the second cylindrical section are all built by refractory bricks (6).

9. The apparatus according to claim 1, wherein the apparatus is characterized by: The inner diameter of the second cylindrical section is equal to that of the transition section.

10. The apparatus according to claim 1, wherein the apparatus is characterized by: The probe (4) is in an L shape, the upper half of the vertical side of the probe (4) is fixed in the position limiter (1), the bottom of the vertical side of the probe (4) faces the glass liquid, and the horizontal side of the probe (4) is higher than the upper end surface of the first cylindrical section.

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