Glass stream flow detection apparatus and method

Abstract

This invention discloses a glass flow rate detection device and method, relating to the field of glass flow rate detection technology. The glass flow rate detection device includes a detection stage, a test tube, an inlet pipe, an outlet pipe, a first detection section, a second detection section, and an arc-shaped wiping plate. This invention uses the first and second detection sections to form a 90-degree light detection angle. This design can capture light changes caused by the glass flow from two different directions, thus providing a more comprehensive and accurate flow rate assessment. To ensure the accuracy and consistency of the detection, the vertical distance between the first detection section and the test tube, and the horizontal distance between the second detection section and the test tube, are precisely set to be equal. This design effectively eliminates errors that may be introduced by distance differences. Furthermore, the arc-shaped wiping plate effectively cleans the test tube according to different conditions, improving detection accuracy.

Description

Technical Field

[0001] This invention belongs to the field of glass flow detection technology, and particularly relates to a glass flow detection device and detection method. Background Technology

[0002] In industrial production and scientific research, accurate measurement of fluid flow rate has always been a crucial step. Especially in glass manufacturing and related fields such as chemical, pharmaceutical, and food processing, accurate monitoring and control of glass fluid flow rate directly affects the stability of the production process and product quality. However, traditional flow detection methods may require complex operating procedures and specialized skills, increasing operational difficulty and cost. Furthermore, due to the high temperature and corrosiveness of molten glass flow, traditional calibration methods are often difficult to implement or ineffective. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a glass flow stream flow detection device and detection method that can overcome or at least partially solve the above problems.

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: a glass flow rate detection device, including a detection platform and a test tube horizontally arranged above the detection platform. One end of the test tube is provided with an inlet pipe and the other end is provided with an outlet pipe. It also includes a first detection part vertically corresponding to the top of the test tube. A second detection part is provided horizontally corresponding to the rear of the test tube and forms a 90-degree light detection angle with the first detection part. The test tube is provided with a pair of arc-shaped wiping plates that overlap on the surface of the test tube and move along the surface of the test tube in a first state and a second state. In the first state, the contact between the arc-shaped wiping plates and the test tube is a hard contact, and in the second state, the contact between the arc-shaped wiping plates and the test tube is a soft contact.

[0005] Preferably, the distance between the test tubes is vertically corresponding to the distance between the first detection unit and horizontally corresponding to the distance between the test tubes of the second detection unit.

[0006] Preferably, a pair of vertical rectangular rods are fixedly connected to the top of the testing platform, and a top mounting plate is fixedly connected between the tops of the two vertical rectangular rods. A first connecting part is installed on the top mounting plate, and one end of the first connecting part located at the bottom of the top mounting plate is fixedly connected to the first testing part. A first concave frame is fixedly connected between the two vertical rectangular rods, and a second connecting part is installed on the first concave frame. One end of the second connecting part located inside the first concave frame is fixedly connected to the second testing part.

[0007] Preferably, a pair of vertical support plates are fixedly connected to the top of the testing platform. The top of the vertical support plate is provided with an arc-shaped groove that fits with the surface of the test tube. An arc-shaped clamp that fits with the surface of the test tube is connected to the top of the vertical support plate.

[0008] Preferably, a first driving unit is installed on one side of one of the vertical support plates, and the output end of the first driving unit is connected to a threaded rod that is rotatably disposed between the two vertical support plates. A movable plate is threadedly connected to the surface of the threaded rod, and a second concave frame is fixedly connected to the top of the movable plate. A limiting mechanism is provided between the two arc-shaped wiping plates and the inner wall corresponding to the second concave frame.

[0009] Preferably, a pair of guide limiting rods are slidably mounted on the movable plate, and the guide limiting rods are fixedly connected between the two vertical support plates.

[0010] Preferably, the limiting mechanism includes a limiting cylinder fixedly connected to the inner wall of the second concave frame, a circular block is attached to the inner wall of the limiting cylinder, an extension rod is fixedly connected to the circular block, one end of the extension rod extending to the outside of the limiting cylinder is fixedly connected to the arc-shaped wiping plate, a limiting spring is sleeved on the extension rod and fixedly connected between the arc-shaped wiping plate and the limiting cylinder, and an actuating element that is linked with the circular block is provided on the limiting cylinder.

[0011] Preferably, the actuating component includes a second driving part mounted on the limiting cylinder, the output end of the second driving part is connected to a connecting shaft rotatably disposed on the limiting cylinder, a rotating block corresponding to the circular block is fixedly connected to the connecting shaft, and an arc-shaped abutment block is fixedly connected to the rotating block.

[0012] Preferably, the surface of the connecting shaft is fitted with a liquid guide tube fixedly connected to the limiting cylinder, and a plurality of circumferential blades are fixedly connected to the connecting shaft and are all attached to the inner wall of the liquid guide tube. One side of the liquid guide tube is connected to an inlet pipe, and the other side of the liquid guide tube is connected to an infusion hose. The interior of the arc-shaped wiping plate is provided with an inlet chamber connected to the other end of the infusion hose, and the side of the arc-shaped wiping plate corresponding to the test tube is connected to a plurality of outlets.

[0013] The present invention also provides a method for detecting the flow rate of a glass stream, comprising: Step S1: First, wipe the impurities on the surface of the test tube with an arc-shaped wiping plate; Step S2: Then, inject the molten glass fluid into the test tube through the inlet pipe; Step S3: Finally, after the molten glass fluid has stabilized, the first and second detection units are activated to perform light detection, and the detection data is sent to the background system for recording and analysis of the data captured by the light detection device to evaluate the flow characteristics of the molten glass fluid.

[0014] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention forms a 90-degree light detection angle through the first detection unit and the second detection unit. This design can capture the light changes caused by the glass flow from two different directions, thereby providing a more comprehensive and accurate flow assessment. In order to ensure the accuracy and consistency of the detection, the vertical distance between the first detection unit and the test tube, and the horizontal distance between the second detection unit and the test tube are precisely set to be equal. This design effectively eliminates the error that may be introduced due to the distance difference. In addition, the wiping mechanism of the arc-shaped wiping plate in the first and second states can effectively clean the surface of the test tube according to the adhesion, ensuring that the surface of the test tube remains clean, thereby further improving the accuracy of the test. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a first structural schematic diagram of a glass stream flow detection device proposed in this invention; Figure 2 This is a schematic diagram of the second structure of a glass stream flow detection device proposed in this invention; Figure 3 For the present invention Figure 1 Schematic diagram of the connection structure between the central vertical support plate and the threaded rod; Figure 4 For the present invention Figure 3 Exploded view of the connection between the arc-shaped wiping plate and the vertical support plate; Figure 5 For the present invention Figure 4 Schematic diagram of the connection structure between the middle limiting cylinder and the arc-shaped wiping plate; Figure 6 For the present invention Figure 5 A cross-sectional view of the middle limiting cylinder; Figure 7 For the present invention Figure 6 A cross-sectional view of the arc-shaped wiping plate; Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at point A in the middle.

[0016] In the diagram: 1. Testing platform; 11. Vertical rectangular rod; 12. Top mounting plate; 13. First connecting part; 14. First concave frame; 15. Second connecting part; 16. Vertical support plate; 17. Arc groove; 18. Arc clamp; 2. Test tube; 21. Inlet pipe; 22. Outlet pipe; 3. First testing part; 4. Second testing part; 5. Arc wiping plate; 51. Inlet chamber; 52. Outlet; 6. First drive part; 61. Threaded rod; 62. Moving plate; 63. Second concave frame; 64. Guide limit rod; 65. Limiting cylinder; 66. Circular block; 67. Extension rod; 68. Limiting spring; 69. Second drive part; 610. Connecting shaft; 611. Rotating block; 612. Arc abutment block; 613. Liquid guide cylinder; 614. Blade; 615. Inlet pipe; 616. Infusion hose. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0018] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0019] In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0020] Example 1: Refer to Figures 1-4A glass flow rate detection device includes a detection platform 1 and a test tube 2 horizontally positioned above the detection platform 1. One end of the test tube 2 has an inlet pipe 21, and the other end has an outlet pipe 22. It also includes a first detection part 3 vertically positioned above the test tube 2, and a second detection part 4 horizontally positioned behind the test tube 2, forming a 90-degree light detection angle with the first detection part 3. The vertical distance between the first detection part 3 and the test tube 2, and the horizontal distance between the second detection part 4 and the test tube 2, are set to be equal. A pair of vertical rectangular rods 11 are fixedly connected to the top of the detection platform 1, and a [missing information - likely a device name or structure] is fixedly connected between the tops of the two vertical rectangular rods 11. A top mounting plate 12 is provided, on which a first connecting part 13 is installed. One end of the first connecting part 13 located at the bottom of the top mounting plate 12 is fixedly connected to the first detection part 3. A first concave frame 14 is fixedly connected between two vertical square rods 11. A second connecting part 15 is installed on the first concave frame 14. One end of the second connecting part 15 located inside the first concave frame 14 is fixedly connected to the second detection part 4. A pair of vertical support plates 16 are fixedly connected to the top of the detection table 1. An arc-shaped groove 17 that fits the surface of the test tube 2 is opened on the top of the vertical support plate 16. An arc-shaped clamp 18 that fits the surface of the test tube 2 is connected to the top of the vertical support plate 16.

[0021] In use, the above technical solution involves connecting the inlet pipe 21 to an external infusion device. The glass flow to be tested is then introduced into the transparent and high-temperature resistant test tube 2 through the inlet pipe 21. As the glass flow moves within the test tube 2, its flow state alters the propagation path of light, thereby causing changes in light intensity. To accurately capture these light changes, the first detection unit 3 is positioned above and vertically aligned with the test tube 2, while the second detection unit 4 is positioned behind and horizontally aligned with the test tube 2. The two units form a 90-degree light detection angle. This design allows the first detection unit 3 and the second detection unit 4 to capture the light changes caused by the glass flow from two different directions, thus providing a more comprehensive and accurate flow rate assessment. Furthermore, to ensure the accuracy and consistency of the detection, the vertical distance between the first detection unit 3 and the test tube 2, as well as the horizontal distance between the second detection unit 4 and the test tube 2, are precisely set to be equal. This design not only eliminates errors that may arise due to distance differences.

[0022] When the glass stream passes through the test tube 2, the first detection unit 3 and the second detection unit 4, which use cameras, will capture the changes in light intensity and convert these changes into electrical signals for recording and analysis. By processing these electrical signals, the flow rate information of the glass stream can be calculated, thereby achieving accurate measurement of the glass stream flow rate. This measurement method is not only efficient and accurate, but also adaptable to the glass stream detection needs of different flow ranges.

[0023] It should be noted that the glass fluid delivered to the test tube 2 is not necessarily real glass. This is because real glass is in a molten state at high temperatures and has extremely high viscosity and temperature sensitivity. Directly measuring its flow rate may be technically complex and dangerous. Therefore, this device is more likely to be used for fluids that simulate or approximate the flow characteristics of glass. These fluids will also change the propagation path of light during the flow process, so that they can be captured and analyzed by the first detection unit 3 and the second detection unit 4.

[0024] Example 2: Example 1: Refer to Figures 1-4A glass flow rate detection device includes a detection platform 1 and a test tube 2 horizontally positioned above the detection platform 1. One end of the test tube 2 has an inlet pipe 21, and the other end has an outlet pipe 22. It also includes a first detection part 3 vertically positioned above the test tube 2, and a second detection part 4 horizontally positioned behind the test tube 2, forming a 90-degree light detection angle with the first detection part 3. The vertical distance between the first detection part 3 and the test tube 2, and the horizontal distance between the second detection part 4 and the test tube 2, are set to be equal. A pair of vertical rectangular rods 11 are fixedly connected to the top of the detection platform 1, and a top mounting plate 12 is fixedly connected between the tops of the two vertical rectangular rods 11. A first connecting part 13 is mounted on the top mounting plate 12. The first connecting part 13 is located at... One end of the top mounting plate 12 is fixedly connected to the bottom of the first detection part 3. A first concave frame 14 is fixedly connected between the two vertical square rods 11. A second connecting part 15 is installed on the first concave frame 14. One end of the second connecting part 15 located inside the first concave frame 14 is fixedly connected to the second detection part 4. A pair of vertical support plates 16 are fixedly connected to the top of the detection table 1. The top of the vertical support plate 16 has an arc-shaped groove 17 that fits against the surface of the test tube 2. An arc-shaped clamp 18 that fits against the surface of the test tube 2 is connected to the top of the vertical support plate 16. Based on the above embodiment one, the difference is that the test tube 2 is provided with a pair of arc-shaped wiping plates 5 that overlap the surface of the test tube 2 and move along the surface of the test tube 2 in the first state and the second state. In the first state, the contact between the arc-shaped wiping plate 5 and the test tube 2 is a hard contact; in the second state, the contact between the arc-shaped wiping plate 5 and the test tube 2 is a soft contact. A first driving unit 6 is installed on one side of one of the vertical support plates 16. The output end of the first driving unit 6 is connected to a threaded rod 61 rotatably disposed between the two vertical support plates 16. A moving plate 62 is threadedly connected to the surface of the threaded rod 61. A pair of guide limiting rods 64 slide on the moving plate 62 and are fixedly connected between the two vertical support plates 16. A second concave frame 63 is fixedly connected to the top of the moving plate 62. Limiting mechanisms are provided between the two arc-shaped wiping plates 5 and the corresponding inner walls of the second concave frame 63. The limiting mechanisms include those fixedly connected to the second... A limiting cylinder 65 is located on the inner wall of the concave frame 63. A circular block 66 is attached to the inner wall of the limiting cylinder 65. An extension rod 67 is fixedly connected to the circular block 66. One end of the extension rod 67, which extends through the limiting cylinder 65, is fixedly connected to the arc-shaped wiping plate 5. A limiting spring 68 is sleeved on the extension rod 67 and is fixedly connected between the arc-shaped wiping plate 5 and the limiting cylinder 65. The limiting cylinder 65 is provided with a toggle member that is linked with the circular block 66. The toggle member includes a second drive part 69 installed on the limiting cylinder 65. The output end of the second drive part 69 is connected to a connecting shaft 610 that is rotatably set on the limiting cylinder 65. A rotating block 611 located above the circular block 66 is fixedly connected to the connecting shaft 610. An arc-shaped abutment block 612 is fixedly connected to the rotating block 611.

[0025] The above technical solution takes into account that dust adhering to the test tube 2 may affect the detection accuracy of the first detection unit 3 and the second detection unit 4. A pair of arc-shaped wiping plates 5 are attached to the surface of the test tube 2. The side of the arc-shaped wiping plate 5 that contacts the test tube 2 has a sponge layer. When the first drive unit 6, which uses a servo motor, is activated to move the moving plate 62 on the surface of the threaded rod 61, the second concave frame 63 connected to the moving plate 62 will drive the corresponding arc-shaped wiping plates 5 between the two limiting cylinders 65 to slide along the surface of the test tube 2. This can wipe away the dust and impurities adhering to the surface of the test tube 2, improve the cleanliness of the surface of the test tube 2, and enable the first detection unit 3 and the second detection unit 4 to more accurately capture the light changes caused by the glass flow, thereby achieving accurate measurement of the glass flow rate.

[0026] However, considering that the arc-shaped wiping plate 5, which only adheres to the surface of the test tube 2, can only easily clean loose impurities attached to the surface of the test tube 2, while tightly attached dust impurities are difficult to clean, the arc-shaped wiping plate 5 is designed to have two wiping states. In the first state, the second drive unit 69 driven by the servo motor drives the rotating block 611 on the connecting shaft 610 to cooperate with the arc-shaped contact block 612, so that the arc-shaped contact block 612 abuts against the surface of the circular block 66. At this time, under the restriction of the arc-shaped contact block 612, the circular block 66, through the extension rod 67, makes the arc-shaped wiping plate 5 tightly abut against the surface of the test tube 2 and keep it fixed. This tight contact state helps to effectively remove the tightly attached dust on the surface of the test tube 2.

[0027] However, if the compacted impurities on the surface of the test tube 2 are cleaned, the arc-shaped wiping plate 5 continues to rub tightly against the surface of the test tube 2, which may cause wear to the surface of the test tube 2. Therefore, the solution is designed with a second state. In the second state, the connecting shaft 610 continues to rotate through the second drive unit 69, causing the arc-shaped contact block 612 to disengage from the surface of the circular block 66. At this time, the arc-shaped wiping plate 5 is in an elastic extension state under the combined action of the extension rod 67, the limiting spring 68 and the circular block 66, and no longer rubs too tightly against the surface of the test tube 2. This state ensures the wiping effect and avoids potential wear to the surface of the test tube 2 caused by excessive friction.

[0028] Example 3: Refer to Figures 4-8Based on the above embodiment 2, the difference is that the surface of the connecting shaft 610 is fitted with a liquid guide tube 613 fixedly connected to the limiting tube 65, and multiple circumferential blades 614 are fixedly connected to the connecting shaft 610 and are all attached to the inner wall of the liquid guide tube 613. One side of the liquid guide tube 613 is connected to the liquid inlet pipe 615, and the other side of the liquid guide tube 613 is connected to the infusion hose 616. The inside of the arc-shaped wiping plate 5 is provided with an inlet chamber 51 connected to the other end of the infusion hose 616, and the side of the arc-shaped wiping plate 5 corresponding to the test tube 2 is connected to multiple outlet ports 52.

[0029] With this technical solution, when the second drive unit 69 drives the connecting shaft 610 to rotate, causing the arc-shaped contact block 612 to abut against the surface of the circular block 66, the blade 614 will also slide on the inner wall of the liquid guide cylinder 613 as the connecting shaft 610 rotates. At this time, the water from the external liquid supply device is introduced into the liquid guide cylinder 613 through the liquid inlet pipe 615, then flows into the liquid inlet chamber 51 through the liquid delivery hose 616, and finally sprays out from the liquid outlet 52, wetting the sponge layer that contacts the arc-shaped wiping plate 5 and the test tube 2. The wet sponge layer can more effectively wipe away the compact impurities attached to the surface of the test tube 2, thereby improving the wiping effect.

[0030] It is particularly important to note that when the connecting shaft 610 drives the arc-shaped contact block 612 to contact the surface of the circular block 66, causing the arc-shaped wiping plate 5 to tightly abut against the surface of the test tube 2, the connecting shaft 610 will usually stop rotating. Since the blade 614 is fixedly connected to the connecting shaft 610, the blade 614 will also stop rotating. This means that the mechanism that relies on the centrifugal force generated by the rotation of the blade 614 to drive the water flow through the liquid guide cylinder 613 and the infusion hose 616 into the liquid inlet chamber 51 will no longer work in this static or near-static process. In other words, when the arc-shaped wiping plate 5 is in a tight wiping state, the water in the liquid inlet pipe 615 will not be continuously introduced into the liquid inlet chamber 51 through the liquid guide cylinder 613 and the infusion hose 616. The advantage of this design is that, on the one hand, it reduces the waste of water resources, and on the other hand, it avoids unnecessary wear on the surface of the test tube 2 caused by continuous water flow. This intermittent water supply method avoids this problem.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A glass stream flow rate detection device, comprising: Testing station (1); as well as A test tube (2) is horizontally positioned above the testing platform (1), with an inlet pipe (21) at one end and an outlet pipe (22) at the other end; characterized in that it further includes: A first detection part (3) is vertically positioned above the test tube (2). A second detection part (4) is horizontally positioned behind the test tube (2) and forms a light detection angle of 90 degrees with the first detection part (3). A pair of arc-shaped wiping plates (5) are provided on the test tube (2) and overlap the surface of the test tube (2) and move along the surface of the test tube (2) in the first state and the second state. In the first state, the contact between the arc-shaped wiping plate (5) and the test tube (2) is a hard contact; in the second state, the contact between the arc-shaped wiping plate (5) and the test tube (2) is a soft contact. A pair of vertical square rods (11) are fixedly connected to the top of the testing platform (1). A top mounting plate (12) is fixedly connected between the tops of the two vertical square rods (11). A first connecting part (13) is installed on the top mounting plate (12). One end of the first connecting part (13) connected to the bottom of the top mounting plate (12) is fixedly connected to the first testing part (3). A first concave frame (14) is fixedly connected between the two vertical square rods (11). A second connecting part (15) is installed on the first concave frame (14). One end of the second connecting part (15) located inside the first concave frame (14) is fixedly connected to the second testing part (4). The top of the testing platform (1) is fixedly connected to a pair of vertical support plates (16). The top of the vertical support plate (16) is provided with an arc groove (17) that fits against the surface of the test tube (2). The top of the vertical support plate (16) is connected with an arc clamp (18) that fits against the surface of the test tube (2). A first drive unit (6) is installed on one side of one of the vertical support plates (16). The output end of the first drive unit (6) is connected to a threaded rod (61) that is rotatably disposed between the two vertical support plates (16). A movable plate (62) is threadedly connected to the surface of the threaded rod (61). A second concave frame (63) is fixedly connected to the top of the movable plate (62). A limiting mechanism is provided between the two arc-shaped wiping plates (5) and the inner wall corresponding to the second concave frame (63).

2. The glass flow rate detection device according to claim 1, characterized in that, The distance between the first detection unit (3) and the test tube (2) is vertically equal to the distance between the second detection unit (4) and the test tube (2) is horizontally equal to the distance between the second detection unit (4).

3. The glass flow rate detection device according to claim 1, characterized in that, A pair of guide rods (64) slide on the movable plate (62), and the guide rods (64) are fixedly connected between the two vertical support plates (16).

4. The glass flow rate detection device according to claim 1, characterized in that, The limiting mechanism includes a limiting cylinder (65) fixedly connected to the inner wall of the second concave frame (63). A circular block (66) is attached to the inner wall of the limiting cylinder (65). An extension rod (67) is fixedly connected to the circular block (66). One end of the extension rod (67) that extends through the outside of the limiting cylinder (65) is fixedly connected to the arc-shaped wiping plate (5). A limiting spring (68) is sleeved on the extension rod (67) and fixedly connected between the arc-shaped wiping plate (5) and the limiting cylinder (65). A toggle element that is linked with the circular block (66) is provided on the limiting cylinder (65).

5. The glass flow rate detection device according to claim 4, characterized in that, The actuating component includes a second driving part (69) mounted on the limiting cylinder (65). The output end of the second driving part (69) is connected to a connecting shaft (610) rotatably disposed on the limiting cylinder (65). A rotating block (611) corresponding to the circular block (66) is fixedly connected to the connecting shaft (610). An arc-shaped abutment block (612) is fixedly connected to the rotating block (611).

6. The glass flow rate detection device according to claim 5, characterized in that, The surface of the connecting shaft (610) is fitted with a liquid guide tube (613) fixedly connected to the limiting cylinder (65). Multiple blades (614) that are circumferential and attached to the inner wall of the liquid guide tube (613) are fixedly connected to the connecting shaft (610). One side of the liquid guide tube (613) is connected to an inlet pipe (615), and the other side of the liquid guide tube (613) is connected to an infusion hose (616). The inside of the arc-shaped wiping plate (5) is provided with an inlet chamber (51) that is connected to the other end of the infusion hose (616). The side of the arc-shaped wiping plate (5) corresponding to the test tube (2) is connected to multiple outlets (52).

7. A method for detecting the flow rate of a glass stream, applied to the glass stream flow rate detection device according to claim 1, characterized in that, include: Step S1: First, wipe the impurities on the surface of the test tube (2) with the arc-shaped wiping plate (5); Step S2: Then, the molten glass fluid is injected into the test tube (2) through the inlet pipe (21); Step S3: Finally, after the molten glass fluid has stabilized, the first detection unit (3) and the second detection unit (4) are activated to perform light detection, and the detected data is sent to the background system to record and analyze the data captured by the light detection device in order to evaluate the flow characteristics of the molten glass fluid.

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