Tin liquor depth measuring device

Abstract

The utility model discloses a tin liquid depth measuring device which comprises a laser liquid level instrument and a cooling mechanism, and the laser liquid level instrument is located in a cooling cavity of the cooling mechanism. A measuring hole is formed in the cooling mechanism, the measuring hole penetrates from the cooling cavity to the lower end of the cooling mechanism, and the laser liquid level instrument is arranged towards the measuring hole; the measuring hole is positioned above tin liquid in the tin bath; the center line of the measuring hole is perpendicular to the horizontal plane. According to the utility model, the laser liquid level instrument is arranged in the cooling mechanism above the tin liquid, so that the tin liquid in the tin bath can be accurately monitored in real time, and the influence on the glass forming quality and efficiency caused by inaccurate depth measurement of the tin liquid in the production process is avoided; and meanwhile, the cooling mechanism can play a role in cooling and protecting the laser liquid level instrument in a high-temperature environment, so that the laser liquid level instrument is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of measuring device technology, and in particular to a molten tin depth measuring device. Background Technology

[0002] During the production of float glass, tin defects can occur on the upper and lower surfaces of the glass due to factors such as improper tin bath design, quantity and quality of protective gas, unreasonable production process parameters, and poor sealing of the tin bath. In addition, trace amounts of tin seep into the lower surface of the glass, thus consuming the tin in the tin bath and causing the tin liquid depth to decrease. Furthermore, adding too much tin may cause the tin liquid to exceed the optimal forming depth.

[0003] The impact of molten tin depth on forming is as follows: If the molten tin depth is too shallow, the exit triangle area increases, increasing the risk of plate breakage at the molten tin bath exit; an excessively large triangle area will lead to an increase in the amount of tin adhering to the glass plate at the exit; if the molten tin depth is too deep (the molten tin depth will increase when the drawing amount increases), the exit triangle area will become smaller, and the tin ash and other debris accumulated at the molten tin bath exit can cause scratches on the bottom of the glass plate; if the molten tin depth is too deep, the main conveyor speed will be too fast, which will carry out a large amount of tin, causing tin adhering to the roller and waste; if the molten tin depth is too deep or too shallow, the convection of the molten tin in the bath will be disordered, and the heat capacity of the molten tin in the bath will change, resulting in instability of the glass plate in the molten tin bath.

[0004] Patent application No. (201520591552.4) discloses a device for measuring the depth of molten tin, including a copper-plated carbon rod and a clamp. The copper-plated carbon rod is fixedly installed in a vertical mounting tube at the fixed end of the clamp, and the angle between the copper-plated carbon rod and the handle is 90°. During measurement, the copper-plated carbon rod is held vertically downward and slowly inserted into the molten tin until it reaches the bottom of the molten tin. It is held for about 2 seconds and then the copper-plated carbon rod is taken out. The part immersed in the molten tin is black, and the part not immersed in the molten tin remains the original red copper color. The length of the black part is the depth of the molten tin at this position.

[0005] However, the above measurement methods are greatly affected by factors such as the operator's insertion angle, resulting in large measurement errors. Overheated molten solder also has adverse effects on operators and cannot be monitored in real time. In the production of ultra-thin electronic glass, changes in the depth of molten solder have a significant impact on the forming process. Therefore, manual measurement methods still cannot adequately meet production needs.

[0006] Therefore, existing technologies still need improvement. Utility Model Content

[0007] To address the aforementioned technical problems, this utility model proposes a molten tin depth measuring device. By installing a device at a fixed position in the molten tin bath to measure the molten tin depth in real time, the problem of untimely and inaccurate measurement of molten tin in the molten tin bath is solved.

[0008] To address the aforementioned technical problems, some embodiments of this utility model disclose a molten tin depth measuring device, including a laser level gauge and a cooling mechanism, wherein...

[0009] The laser level gauge is located inside the cooling chamber of the cooling mechanism;

[0010] The cooling mechanism is equipped with a measuring hole, which extends from the cooling cavity to the lower end of the cooling mechanism, and the laser level gauge is positioned facing the measuring hole.

[0011] The measuring hole is located above the molten tin in the solder bath;

[0012] The centerline of the measuring hole is perpendicular to the horizontal plane.

[0013] Furthermore, a first through hole is provided on the breast wall of the tin bath, and the cooling mechanism partially passes through the first through hole and is fixedly connected to the breast wall. The angle between the cooling mechanism and the breast wall is 90°.

[0014] Furthermore, the cooling mechanism includes a first sleeve and an intake pipe, wherein,

[0015] The first sleeve is closed at both ends, forming a cooling chamber inside to house the laser level gauge. A second through hole is opened on the wall of the first sleeve, and the laser level gauge is fixed on the wall above the second through hole.

[0016] One end of the intake pipe is connected to the wall of the first set of pipes;

[0017] The other end of the intake pipe is connected to the air supply pipe;

[0018] Furthermore, the air intake is located outside the breast wall.

[0019] Furthermore, the cooling mechanism also includes: a connecting pipe, a second sleeve, an inlet pipe, an outlet pipe, and a sealing component, wherein,

[0020] The second sleeve is concentrically disposed outside the first sleeve, and the first sleeve, the second sleeve, and the sealing element together form an annular sealed cavity;

[0021] One end of the inlet pipe is connected to the lower end of the wall of the second set of pipes, and the other end of the inlet pipe is connected to the water supply pipe.

[0022] One end of the outlet pipe is connected to the upper end of the wall of the second set of pipes, and the other end of the outlet pipe is connected to the drainage pipe.

[0023] The second sleeve is provided with a third through hole. The connecting pipe is arranged vertically and its two ends are respectively sealed to the second and third through holes, so that a measuring hole is formed in the hollow interior of the connecting pipe.

[0024] Furthermore, the sealing component is an annular plate, the inner diameter of which matches the outer diameter of the first sleeve, and the outer diameter of which matches the inner diameter of the second sleeve. The annular plate is fixedly connected to the first sleeve and the second sleeve, and the first sleeve extends partially out of the second sleeve. The air inlet pipe is connected to the wall of the first sleeve extending out of the second sleeve.

[0025] Furthermore, the vertical centerline of the connecting pipe is perpendicular to the horizontal plane.

[0026] Furthermore, the inner diameter of the upper end of the connecting pipe is smaller than the inner diameter of the lower end of the connecting pipe, and the inner diameter of the connecting pipe transitions smoothly from top to bottom.

[0027] Furthermore, it also includes a support plate, with the outer wall of the first sleeve and the inner wall of the second sleeve respectively connected to both sides of the support plate; and a fourth through hole for water to flow through is provided on the support plate.

[0028] Furthermore, there are two support plates, and the two support plates are arranged symmetrically with respect to the axis of the first sleeve.

[0029] Furthermore, both ends of the first sleeve are sealed structures, and the sealing structure is a sealing plate. The sealing plate at the end of the first sleeve away from the laser level gauge is provided with a fifth through hole, through which the connection line of the laser level gauge is connected to the external data receiving system.

[0030] By adopting the above technical solution, this utility model has at least the following beneficial effects:

[0031] This utility model provides a molten tin depth measuring device, which places a laser level gauge inside a cooling mechanism above the molten tin to achieve real-time and accurate monitoring of the molten tin in the tin bath. When fluctuations in the molten tin depth are detected, the device can promptly replenish or reduce the molten tin, thus avoiding the impact of inaccurate molten tin depth measurement on the glass forming quality and efficiency during float glass production. At the same time, the cooling mechanism can also cool and protect the laser level gauge, which is in a high-temperature environment, to prevent damage to the laser level gauge. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a molten tin depth measuring device disclosed in some embodiments of this utility model;

[0034] Figure 2This is a left view of a molten tin depth measuring device disclosed in some embodiments of this utility model;

[0035] Figure 3 This is an installation structure diagram of a molten tin depth measuring device disclosed in some embodiments of this utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Laser level gauge; 2. Cooling mechanism; 21. Measuring hole; 22. First sleeve; 23. Air inlet pipe; 24. Second sleeve; 25. Water inlet pipe; 26. Water outlet pipe; 27. Sealing component; 28. Support plate; 3. Breast wall; 4. Fourth through hole; 5. Fifth through hole. Detailed Implementation

[0038] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0039] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure 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 ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0040] It should be noted that, in the description of this disclosure, 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 disclosure 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 disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] Furthermore, the terms "first," "second," and similar terms used in this disclosure 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 the word, and do not exclude the possibility of encompassing other elements as well.

[0042] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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 disclosure depending on the specific circumstances. When a particular 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 particular device and the first or second device.

[0043] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure 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.

[0044] 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.

[0045] Some embodiments of this utility model disclose a device for measuring the depth of molten tin, such as... Figure 1 , Figure 2 As shown, the device includes a laser level gauge 1 and a cooling mechanism 2. The laser level gauge 1 is located inside the cooling chamber of the cooling mechanism 2. The cooling mechanism 2 has a measuring hole 21 that extends from the cooling chamber to the lower end of the cooling mechanism 2, with the laser level gauge 1 facing the measuring hole 21. The measuring hole 21 is located above the molten tin in the solder bath, and its centerline is perpendicular to the horizontal plane. This embodiment achieves real-time and accurate monitoring of the molten tin depth by installing the laser level gauge inside the cooling chamber of the cooling mechanism and positioning the entire device above the molten tin in the solder bath. When fluctuations in the molten tin depth are detected, the device can promptly replenish or reduce the amount of molten tin in the solder bath, minimizing the impact of these fluctuations on glass forming, avoiding the inaccuracies of manual measurement, and improving work efficiency. Furthermore, the cooling mechanism provides cooling protection for the laser level gauge in a high-temperature environment, preventing damage to the device.

[0046] The molten tin depth measuring device disclosed in some embodiments of this utility model is based on the above embodiments, such as... Figure 3As shown, it also includes: a first through hole is opened on the breast wall 3 of the tin bath, the cooling mechanism 2 partially passes through the first through hole and is fixedly connected to the breast wall 3, and the angle between the cooling mechanism 2 and the breast wall 3 is 90°. By partially passing the cooling mechanism through the first through hole and fixing it to the breast wall, the cooling mechanism is fixedly installed. The angle between the cooling mechanism and the breast wall is 90°, so that the cooling mechanism is in a horizontal direction, ensuring the accuracy of the laser level gauge's measurement angle, and ensuring that the water circulation environment of the second sleeve is in a full-pipe state, thereby ensuring the cooling protection function of the laser level gauge.

[0047] The molten tin depth measuring device disclosed in some embodiments of this utility model is based on the above embodiments, such as... Figure 1 As shown, the cooling mechanism 2 includes a first sleeve 22 and an air inlet pipe 23. The first sleeve 22 is closed at both ends, forming a cooling chamber for housing the laser level gauge 1. A second through hole is provided on the wall of the first sleeve 22, and the laser level gauge 1 is fixed to the wall above the second through hole. One end of the air inlet pipe 23 is connected to the wall of the first sleeve 22, and the other end of the air inlet pipe 23 is connected to an air supply pipe. The air inlet pipe 23 is located outside the breast wall 3. Specifically, the cooling chamber can be cooled by introducing pure nitrogen gas, preventing damage to the laser level gauge from excessively high temperatures above the molten solder. At the same time, the use of pure nitrogen as cooling gas has minimal impact on the molten solder bath environment and has almost no impact on the production process.

[0048] The molten tin depth measuring device disclosed in some embodiments of this utility model is based on the above embodiments, such as... Figure 1As shown, the cooling mechanism 2 also includes a connecting pipe, a second sleeve 24, an inlet pipe 25, an outlet pipe 26, and a sealing element 27. The second sleeve 24 is concentrically arranged outside the first sleeve 22, and the first sleeve 22, the second sleeve 24, and the sealing element 27 form an annular sealed cavity. One end of the inlet pipe 25 is connected to the lower end of the pipe wall of the second sleeve 24, and the other end of the inlet pipe 25 is connected to a water supply pipe. One end of the outlet pipe 26 is connected to the upper end of the pipe wall of the second sleeve 24, and the other end of the outlet pipe 26 is connected to a drainage pipe. A third through hole is provided on the second sleeve 24. The connecting pipe is arranged vertically and its two ends are respectively sealed and connected to the second through hole and the third through hole, so that a measuring hole is formed in the hollow interior of the connecting pipe. Specifically, the sealing element 27 can be an annular plate. The inner diameter of the annular plate matches the outer diameter of the first sleeve 22, and the outer diameter of the annular plate matches the inner diameter of the second sleeve 24. The annular plate can be fixedly connected to the first sleeve 22 and the second sleeve 24 by welding or other means. The first sleeve 22 partially extends out of the second sleeve 24, and the air inlet pipe 23 is connected to the wall of the first sleeve 22 extending out of the second sleeve 24. In this embodiment, a second sleeve is set outside the first sleeve (cooling chamber), and the first sleeve, the second sleeve, and the sealing element together form a sealed cavity. Water in the sealed cavity is circulated with external water through the water inlet pipe and the water outlet pipe, so that a water circulation environment is formed inside the sealed cavity, further cooling the environment where the laser level gauge is located, and realizing the protection of the laser level gauge. One end of the water inlet pipe is connected to the lower end of the wall of the second sleeve, and one end of the water outlet pipe is connected to the upper end of the wall of the second sleeve. The position of the water outlet pipe is set higher than the position of the water inlet pipe to ensure that the water in the sealed cavity is in a full pipe state.

[0049] The molten tin depth measuring device disclosed in some embodiments of this utility model is based on the above embodiments, such as... Figure 1 As shown, the vertical centerline of the connecting pipe is perpendicular to the horizontal plane to ensure that the laser from the laser level gauge can pass through the connecting pipe and be directed at the molten solder in the solder bath at a vertical angle. On the other hand, to better receive the laser signal reflected from the liquid surface, the measuring hole is preferably a tapered hole. Specifically, the inner diameter of the upper end of the connecting pipe can be set to be smaller than that of the lower end, and the inner diameter of the connecting pipe transitions smoothly from top to bottom.

[0050] The molten tin depth measuring device disclosed in some embodiments of this utility model is based on the above embodiments, such as... Figure 1 , Figure 2As shown, the device also includes a support plate 28, with its two sides connected to the outer wall of the first sleeve 22 and the inner wall of the second sleeve 24, respectively. The support plate 28 also has a fourth through hole 4 for water flow. There can be two support plates 28, arranged symmetrically with respect to the axis of the first sleeve 22. By symmetrically arranging support plates between the first and second sleeves, the entire device structure is made more stable, preventing inaccurate measurements due to pipe wall deformation. The fourth through hole on the support plate allows water to flow in and out, enabling the water in the sealed cavity to circulate with external water, ensuring the cooling effect of the water-cooled environment.

[0051] The molten tin depth measuring device disclosed in some embodiments of this utility model is based on the above embodiments, such as... Figure 1 , Figure 2 As shown, both ends of the first sleeve 22 are sealed structures, which are sealing plates. A fifth through hole 5 is provided on the sealing plate at the end of the first sleeve 22 furthest from the laser level gauge 1. The connection line of the laser level gauge 1 is connected to an external data receiving system through the fifth through hole 5. The liquid level data monitored by the laser level gauge is transmitted to the external data receiving system via the connection line, so that when fluctuations in the molten solder depth are detected, the molten solder can be replenished or reduced in a timely manner.

[0052] In summary, the molten tin depth measuring device disclosed in this utility model embodiment achieves real-time and accurate monitoring of the molten tin in the tin bath by placing the laser level gauge inside a cooling mechanism above the molten tin, thus avoiding the impact on glass forming quality and efficiency caused by inaccurate manual measurement. By introducing pure nitrogen gas into the first sleeve and setting the second sleeve to a water circulation cooling environment, the laser level gauge above the hot molten tin is provided with dual cooling protection to prevent the laser level gauge and its connecting wires from being burned or damaged, ensuring the normal operation of the measurement work.

[0053] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0054] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. 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 disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A tin bath depth measuring device, characterized by, The application relates to a laser liquid level gauge (1) and a cooling mechanism (2), wherein, The laser liquid level gauge (1) is located in a cooling cavity of the cooling mechanism (2); A measuring hole (21) is arranged on the cooling mechanism (2), the measuring hole (21) is penetrated by the cooling cavity to the lower end of the cooling mechanism (2), and the laser liquid level gauge (1) is arranged towards the measuring hole (21); The measuring hole (21) is located above tin liquid in a tin tank; The center line of the measuring hole (21) is perpendicular to a horizontal plane.

2. The tin bath depth measuring device of claim 1, wherein A first through hole is formed in a breast wall (3) of the tin tank, the cooling mechanism (2) partially penetrates the first through hole and is fixedly connected to the breast wall (3), and the included angle between the cooling mechanism (2) and the breast wall (3) is 90 degrees.

3. The tin bath depth measuring device of claim 2, wherein The cooling mechanism (2) comprises a first sleeve (22) and an air inlet pipe (23), wherein, The first sleeve (22) is closed at both ends and forms a cooling cavity for accommodating the laser liquid level gauge (1) in the inside, a second through hole is formed in the pipe wall of the first sleeve (22), and the laser liquid level gauge (1) is fixed to the pipe wall above the second through hole; One end of the air inlet pipe (23) is communicated with the pipe wall of the first sleeve (22); The other end of the air inlet pipe (23) is connected with a gas supply pipeline; And the air inlet pipe (23) is located outside the breast wall (3).

4. The tin bath depth measuring device of claim 3, wherein The cooling mechanism (2) further comprises a connecting pipe, a second sleeve (24), a water inlet pipe (25), a water outlet pipe (26) and a plugging piece (27), wherein, The second sleeve (24) is concentrically arranged outside the first sleeve (22), and the first sleeve (22), the second sleeve (24) and the plugging piece (27) jointly enclose a ring-shaped sealed cavity; One end of the water inlet pipe (25) is communicated with the lower end of the pipe wall of the second sleeve (24), and the other end of the water inlet pipe (25) is connected with a water supply pipeline; One end of the water outlet pipe (26) is communicated with the upper end of the pipe wall of the second sleeve (24), and the other end of the water outlet pipe (26) is connected with a drainage pipeline; A third through hole is arranged on the second sleeve (24), the connecting pipe is vertically arranged and is sealingly connected to the second through hole and the third through hole at both ends, so that the hollow inside of the connecting pipe forms the measuring hole (21).

5. The tin bath depth measuring device of claim 4, wherein The plugging piece (27) is a ring-shaped plate, the inner diameter of the ring-shaped plate matches the outer diameter of the first sleeve (22), the outer diameter of the ring-shaped plate matches the inner diameter of the second sleeve (24), the ring-shaped plate is fixedly connected to the first sleeve (22) and the second sleeve (24), and the first sleeve (22) partially extends out of the second sleeve (24), and the air inlet pipe (23) is connected to the pipe wall of the first sleeve (22) extending out of the second sleeve (24).

6. The tin bath depth measuring device of claim 4, wherein The vertical center line of the connecting pipe is perpendicular to a horizontal plane.

7. The tin bath depth measuring device of claim 4 wherein, The upper end inner diameter of the connecting pipe is smaller than the lower end inner diameter of the connecting pipe, and the inner diameter of the connecting pipe is smoothly transitioned from top to bottom.

8. The tin bath depth measuring device of claim 4, wherein The support plate (28) is connected to the outer wall of the first sleeve (22) and the inner wall of the second sleeve (24) respectively, and the fourth through hole (4) is arranged on the support plate (28) for water flow.

9. The tin bath depth measuring device of claim 8, wherein, The support plate (28) is two, and the two support plates (28) are symmetrically arranged relative to the axis of the first sleeve (22).

10. The tin bath depth measuring device of claim 3, wherein The two ends of the first sleeve (22) are sealing structures, which are sealing plates, and the fifth through hole (5) is arranged on the sealing plate of the end of the first sleeve (22) away from the laser liquid level meter (1), and the connecting line of the laser liquid level meter (1) is connected to the external data receiving system through the fifth through hole (5).

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