A device for detecting oxygen concentration in a float glass tin bath
By designing an oxygen concentration detection device for float glass tin baths that includes cooling components and a dust filter, the problems of damage to the probe by high-temperature flue gas and poor detection accuracy were solved, achieving safe and accurate oxygen concentration detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI LIHU GLASS (GRP) CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional oxygen concentration detection devices in float glass tin baths, which use a probe connected to an analyzer, are easily damaged by high-temperature flue gas and have poor detection accuracy.
A detection device was designed, comprising a tin bath body, an exhaust pipe, a housing, a curved water pipe, a cooling assembly, a circulating pump, an air blowing pipe, a collection box, a fan, and a dust filter. The device cools the flue gas through the cooling assembly, rapidly collects the flue gas through the air blowing pipe, and filters it using the dust filter, ensuring the safety and accuracy of the flue gas detector and analyzer.
It achieves cooling and filtration of high-temperature flue gas, prevents gas leakage, and improves the accuracy of oxygen concentration detection and the service life of the device.
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Figure CN224303671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of float glass technology, and more specifically, it relates to a device for detecting oxygen concentration in a float glass tin bath. Background Technology
[0002] Float glass is a type of flat glass produced using the float process. With its smooth surface, excellent optical properties, and uniform thickness, it has become one of the most widely used glass types in modern construction, automobiles, and home appliances. The float glass manufacturing process requires a tin bath, which is typically filled with molten tin. Its function is to spread and shape the molten glass onto the surface of the tin, forming a smooth and uniform glass ribbon. The glass ribbon is cooled to approximately 600°C at the end of the tin bath and then enters an annealing furnace for further processing. Accurate detection of the oxygen concentration in the tin bath is crucial during float glass production, as even trace amounts of oxygen can cause the molten tin to oxidize and generate SnO2, contaminating the lower surface of the glass.
[0003] During the testing process, a testing device is required. Most traditional testing devices use a probe connected to an analyzer for testing. However, since the temperature of the flue gas inside the glass tin bath is high, direct testing will damage the probe and the instrument.
[0004] Furthermore, the fumes inside the tin bath are difficult to expel quickly, which prevents oxygen from fully contacting the probe, resulting in poor accuracy when detecting oxygen. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the problems existing in the prior art, this utility model provides a device for detecting oxygen concentration in a float glass tin bath. This solves the technical problem mentioned in the background art, where most traditional detection devices use a probe connected to an analyzer for detection. However, due to the high temperature of the flue gas inside the glass tin bath, direct detection would damage the probe.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for detecting oxygen concentration in a float glass tin bath, comprising a tin bath body, an outlet pipe fixedly provided on one side of the tin bath body, a valve provided on the outlet pipe, a housing provided at the other end of the outlet pipe, a curved water pipe provided inside the housing, the curved water pipe being composed of multiple bends, a cooling assembly fixedly provided on the lower surface of the housing, a water inlet pipe provided at one end of the curved water pipe, one end of the water inlet pipe being connected to the cooling assembly, a circulation pipe provided at the other end of the cooling assembly, a circulation pump provided on the circulation pipe, the other end of the circulation pipe being connected to the curved water pipe, a flue gas detector connected to the outside of the housing, an analyzer main unit provided at the other end of the flue gas detector, and an air blowing pipe fixedly provided on the other side of the tin bath body, multiple air blowing pipes being provided and each air blowing pipe being equipped with a one-way valve.
[0009] The present invention is further configured such that a collection box is fixedly provided at the other end of the air blowing pipe, an installation pipe is fixedly provided on the outer wall of the collection box, a fan is provided inside the installation pipe, a dust filter is movably provided at the front end of the fan, and the dust filter is slidably installed with the installation pipe to facilitate the entry of flue gas into the housing.
[0010] The present invention is further provided that the inside of the mounting tube is provided with a fastening ring, and the outer wall of the fastening ring is threadedly connected to the mounting tube, which facilitates the positioning and installation of the dust filter.
[0011] The present invention is further configured such that a connecting pipe is fixedly provided at the upper end of the flue gas detector, a conical head is fixedly provided at one end of the connecting pipe, a guide tube is provided on the outer wall of the housing, a conical groove is correspondingly opened on the inner wall of the guide tube, the conical head is located inside the conical groove, and a retaining ring is fixedly provided on one side of the conical head and on the outer wall of the connecting pipe. The retaining ring has the same diameter as the outer wall of the guide tube, which facilitates the connection of the flue gas detector to the housing.
[0012] The present invention is further provided with a fastening nut movably provided on the outer wall of the connecting pipe, the fastening nut being threadedly connected to the outer wall of the conduit, which facilitates the disassembly and installation of the dust filter.
[0013] The present invention is further provided with heat exchange fins on the outer wall of the curved water pipe to facilitate the cooling of flue gas.
[0014] The present invention is further configured such that the outer wall of the conical head is in close contact with the inner wall of the conical groove, and the inside of the fastening nut abuts against the retaining ring, which facilitates increasing the sealing of the installation position between the conduit and the connecting pipe.
[0015] The present invention is further provided with a slot on the outer wall of the mounting tube on both sides, and a corresponding block on the outer wall of the dust filter on both sides. The block is located inside the slot, which facilitates the positioning and installation of the dust filter.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a device for detecting oxygen concentration in the tin bath of float glass, which has the following beneficial effects:
[0018] 1. By setting up a housing, curved water pipe, cooling components, and a circulating pump, the user can turn on the circulating pump to allow the cooling water in the cooling components to enter the curved water pipe. Then, the valve is opened to allow a certain amount of flue gas to enter the housing and come into contact with the curved water pipe. At this time, the cooling water in the curved water pipe will perform heat exchange with the flue gas to achieve the effect of cooling the flue gas, which is convenient for subsequent detection by the flue gas detector and the main unit of the analyzer.
[0019] 2. By setting up an air blowing pipe, a collection box, and a fan, the user can turn on the fan to blow air into the inside of the collection box, and then blow the fumes inside the tin bath through the air blowing pipe, so that they can quickly enter the housing for easy collection later. In addition, by setting up a dust filter, the air in the air can be filtered for convenience.
[0020] 3. By setting up a connecting pipe, a conduit, a tapered head, and a fastening nut, the user can insert the tapered head on the connecting pipe into the tapered groove on the conduit and tighten the fastening nut to make it press against the retaining ring inside, so as to achieve the effect of sealing the connecting pipe and the conduit and preventing air leakage during testing. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of an oxygen concentration detection device in a float glass tin bath in an unused state.
[0022] Figure 2 This is a schematic diagram showing the installation of the vent pipe, housing, cooling components, and flue gas detector on the tin bath body.
[0023] Figure 3 Exploded view of the installation of pipes, fans, dust filters, and fastening rings on the central assembly box;
[0024] Figure 4 This is a sectional view showing the installation of the conduit, connecting pipe, and fastening nut on the housing;
[0025] Figure 5 This is a schematic diagram showing the installation positions of the inlet pipe, circulation pipe, and heat exchange fins on a curved water pipe.
[0026] In the diagram: 1. Tin bath body; 2. Exhaust pipe; 3. Valve; 4. Housing; 5. Curved water pipe; 6. Cooling assembly; 7. Inlet pipe; 8. Circulation pipe; 9. Circulation pump; 10. Flue gas detector; 11. Analyzer main unit; 12. Air blowing pipe; 13. Centralized box; 14. Mounting pipe; 15. Fan; 16. Dust filter; 17. Fastening ring; 18. Connecting pipe; 19. Conical head; 20. Guide tube; 21. Conical groove; 22. Retaining ring; 23. Fastening nut; 24. Heat exchange plate; 25. Slot; 26. Locking block. Detailed Implementation
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0030] Please see Figure 1-5 A device for detecting oxygen concentration in a float glass tin bath includes a tin bath body 1. An outlet pipe 2 is fixedly provided on one side of the tin bath body 1. A valve 3 is provided on the outlet pipe 2. A housing 4 is provided at the other end of the outlet pipe 2. A curved water pipe 5 is provided inside the housing 4. The curved water pipe 5 is composed of multiple bends. A cooling component 6 is fixedly provided on the lower surface of the housing 4. A water inlet pipe 7 is provided at one end of the curved water pipe 5. One end of the water inlet pipe 7 is connected to the cooling component 6. A circulation pipe 8 is provided at the other end of the cooling component 6. A circulation pump 9 is provided on the circulation pipe 8. The other end of the circulation pipe 8 is connected to the curved water pipe 5. A flue gas detector 10 is connected to the outside of the housing 4. An analyzer host 11 is provided at the other end of the flue gas detector 10. An air blowing pipe 12 is fixedly provided on the other side of the tin bath body 1. Multiple air blowing pipes 12 are provided, and each air blowing pipe 12 is provided with a one-way valve. A heat exchange plate 24 is provided on the outer wall of the curved water pipe 5.
[0031] In this embodiment, a collection box 13 is fixedly provided at the other end of the air blowing pipe 12. An installation pipe 14 is fixedly provided on the outer wall of the collection box 13. A fan 15 is provided inside the installation pipe 14. A dust filter 16 is movably provided at the front end of the fan 15. The dust filter 16 is slidably installed with the installation pipe 14. A fastening ring 17 is provided inside the installation pipe 14. The outer wall of the fastening ring 17 is threadedly connected to the installation pipe 14.
[0032] More specifically, the user can turn on the circulation pump 9 to allow the cooling water in the cooling component 6 to enter the curved water pipe 5, and then open the valve 3 to allow a certain amount of flue gas to enter the housing 4 and come into contact with the curved water pipe 5. At this time, the cooling water in the curved water pipe 5 will perform heat exchange with the flue gas to achieve the effect of cooling the flue gas, which is convenient for subsequent detection by the flue gas detector 10 and the analyzer host 11. During use, the fan 15 can also be turned on to blow air into the inside of the collection box 13, so as to blow the flue gas inside the tin bath body 1 through the air blowing pipe 12, thereby allowing it to quickly enter the housing 4 for subsequent rapid collection. In addition, by setting the dust filter 16, the air in the air can be filtered for convenient use.
[0033] Please see Figure 1 and Figure 4 As an embodiment for sealing the flue gas detector 10 and the housing 4: a connecting pipe 18 is fixedly provided at the upper end of the flue gas detector 10, a conical head 19 is fixedly provided at one end of the connecting pipe 18, a conduit 20 is provided on the outer wall of the housing 4, a conical groove 21 is correspondingly provided on the inner wall of the conduit 20, the conical head 19 is located inside the conical groove 21, a retaining ring 22 is fixedly provided on one side of the conical head 19 and on the outer wall of the connecting pipe 18, the retaining ring 22 has the same diameter as the outer wall of the conduit 20, a fastening nut 23 is movably provided on the outer wall of the connecting pipe 18, the fastening nut 23 is threadedly connected to the outer wall of the conduit 20, the outer wall of the conical head 19 is in close contact with the inner wall of the conical groove 21, and the inside of the fastening nut 23 abuts against the retaining ring 22.
[0034] Specifically, the user can insert the tapered head 19 on the connecting pipe 18 into the tapered groove 21 on the conduit 20 and tighten the fastening nut 23 to make its interior press against the retaining ring 22, so as to achieve the effect of sealing the connecting pipe 18 and the conduit 20 and prevent air leakage during testing.
[0035] Please refer to Figure 3 As a further embodiment for positioning and installing the dust filter 16: a slot 25 is provided on the outer wall of the installation tube 14 on both sides, and a corresponding block 26 is provided on the outer wall of the dust filter 16 on both sides, with the block 26 located inside the slot 25.
[0036] Specifically, users can use the cooperation of the clip 26 and the slot 26 to position and install the dust filter 16, which facilitates subsequent fixing.
[0037] In summary, when using the overall equipment: the user can turn on the circulating pump 9 to allow the cooling water in the cooling component 6 to enter the curved water pipe 5, and then open the valve 3 to allow a certain amount of flue gas to enter the housing 4 and come into contact with the curved water pipe 5. At this time, the cooling water in the curved water pipe 5 will perform heat exchange with the flue gas to achieve the effect of cooling the flue gas, which is convenient for subsequent detection by the flue gas detector 10 and the analyzer host 11. During use, the fan 15 can also be turned on to blow air into the inside of the collection box 13, so as to blow air into the tin bath through the air blowing pipe 12. The flue gas inside body 1 is blown into housing 4 for rapid collection. The dust filter 16 filters the air for easy use. When connecting the flue gas detector 10, the conical head 19 on the connecting pipe 18 is inserted into the conical groove 21 on the guide tube 20, and the locking nut 23 is tightened to press against the retaining ring 22, thus sealing the connecting pipe 18 and the guide tube 20 to prevent air leakage during testing and improve the accuracy of the test.
[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A device for detecting oxygen concentration in a float glass tin bath, comprising a tin bath body (1), characterized in that: A vent pipe (2) is fixedly provided on one side of the tin bath body (1). A valve (3) is provided on the vent pipe (2). A housing (4) is provided at the other end of the vent pipe (2). A curved water pipe (5) is provided inside the housing (4). The curved water pipe (5) is composed of multiple bends. A cooling assembly (6) is fixedly provided on the lower surface of the housing (4). A water inlet pipe (7) is provided at one end of the curved water pipe (5). One end of the water inlet pipe (7) is connected to the cooling assembly (6). The other end of the cooling component (6) is provided with a circulation pipe (8), and the circulation pipe (8) is provided with a circulation pump (9). The other end of the circulation pipe (8) is connected to the curved water pipe (5). The outside of the housing (4) is provided with a flue gas detector (10). The other end of the flue gas detector (10) is provided with an analyzer host (11). The other side of the tin bath body (1) is fixed with an air blowing pipe (12). Multiple air blowing pipes (12) are provided, and each air blowing pipe (12) is provided with a one-way valve.
2. The oxygen concentration detection device in a float glass tin bath according to claim 1, characterized in that: The other end of the air blowing pipe (12) is fixedly provided with a collection box (13), and an installation pipe (14) is fixedly provided on the outer wall of the collection box (13). A fan (15) is provided inside the installation pipe (14), and a dust filter (16) is movably provided at the front end of the fan (15). The dust filter (16) is slidably installed with the installation pipe (14).
3. The oxygen concentration detection device in a float glass tin bath according to claim 2, characterized in that: The mounting tube (14) is provided with a fastening ring (17) inside, and the outer wall of the fastening ring (17) is threadedly connected to the mounting tube (14).
4. The oxygen concentration detection device in a float glass tin bath according to claim 1, characterized in that: The upper end of the flue gas detector (10) is fixedly provided with a connecting pipe (18), and one end of the connecting pipe (18) is fixedly provided with a conical head (19). The outer wall of the housing (4) is provided with a conduit (20), and the inner wall of the conduit (20) is correspondingly provided with a conical groove (21). The conical head (19) is located inside the conical groove (21). A retaining ring (22) is fixedly provided on one side of the conical head (19) and on the outer wall of the connecting pipe (18). The retaining ring (22) has the same diameter as the outer wall of the conduit (20).
5. The oxygen concentration detection device in a float glass tin bath according to claim 4, characterized in that: A fastening nut (23) is movably provided on the outer wall of the connecting pipe (18), and the fastening nut (23) is threadedly connected to the outer wall of the conduit (20).
6. The oxygen concentration detection device in a float glass tin bath according to claim 1, characterized in that: The curved water pipe (5) is provided with heat exchange fins (24) on its outer wall.
7. The oxygen concentration detection device in a float glass tin bath according to claim 5, characterized in that: The outer wall of the conical head (19) is in close contact with the inner wall of the conical groove (21), and the interior of the fastening nut (23) abuts against the retaining ring (22).
8. The oxygen concentration detection device in the tin bath of float glass according to claim 2, characterized in that: The mounting tube (14) has slots (25) on its outer wall and on both sides, and the dust filter (16) has corresponding blocks (26) on its outer wall and on both sides, with the blocks (26) located inside the slots (25).