Melting furnace glass liquid level monitoring device
By introducing a light filter structure, a purging component, and a heat insulation structure into the glass level monitoring device in the melting furnace, the problem of insufficient level detection accuracy caused by strong light reflection under high temperature environment is solved, achieving high-precision level monitoring and long equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINHUANGDAO GLASS IND RES & DESIGN INST
- Filing Date
- 2026-01-07
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, image-based level gauges are subject to interference from strong light reflection in high-temperature environments, resulting in insufficient level detection accuracy and easy damage to the equipment, leading to a high maintenance frequency.
It adopts a combination of a light filter structure and a purge assembly with a heat insulation structure. The light filter structure is placed between the camera lens and the observation hole to filter out strong light reflections; the purge assembly forms an air curtain by blowing air to block high-temperature gases; and the heat insulation structure provides a stable working environment and can cool down the device.
It improves the accuracy of liquid level detection, extends equipment life, reduces production costs, and ensures imaging quality and equipment stability.
Smart Images
Figure CN122010389A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of glass production technology, and specifically to a glass level monitoring device for a melting furnace. Background Technology
[0002] In the float glass production process, maintaining a stable molten glass level within the float glass melting furnace is a core prerequisite for ensuring production safety and product quality. An excessively high molten glass level can cause glass to overflow the furnace, leading to high-temperature safety accidents and wasting raw materials. Conversely, an excessively low level can disrupt the thermal balance within the furnace, resulting in uneven melting of the molten glass and consequently causing quality defects in the finished glass product, such as thickness variations, bubbles, and stones. This severely impacts the stability of subsequent processing steps and the final product's pass rate.
[0003] In existing technologies, image-based level gauges are typically used to monitor the level of molten glass. These gauges work by placing marker holes at specific locations within the melting furnace and using a camera to capture the reflection of these marker holes on the surface of the molten glass. Level monitoring is then achieved based on the correspondence between the reflection position and the actual level. However, this type of image-based level gauge still has significant drawbacks: the strong light reflections from the high-temperature environment inside the furnace cause image distortion, resulting in insufficient accuracy in level detection. Summary of the Invention
[0004] This invention provides a glass liquid level monitoring device for melting furnaces to solve the problem of image distortion caused by strong light reflection interference in the high-temperature environment inside the furnace, which leads to insufficient liquid level detection accuracy.
[0005] This invention provides a glass level monitoring device for a melting furnace, comprising: The monitoring component includes a camera structure disposed on the outside of the melting furnace, with the camera end of the camera structure positioned opposite to the observation hole of the melting furnace. The camera structure is used to acquire images of the marker brick inside the melting furnace and the images formed on the surface of the molten glass. A filter structure is disposed between the imaging structure and the observation hole, and the filter structure is disposed opposite to the imaging end of the imaging structure.
[0006] Beneficial effects: By incorporating a filter structure, the problem of light interference caused by strong light reflection in the high-temperature environment inside the kiln is effectively solved, avoiding image distortion and significantly improving the accuracy of liquid level detection. The use of the filter structure also extends the service life of monitoring equipment such as cameras, reduces equipment damage and maintenance frequency caused by strong light exposure, and further lowers production costs.
[0007] In one optional embodiment, a purging assembly is provided on the outside of the melting furnace. The purging assembly is located on one side of the observation hole. The purging assembly has an air outlet for blowing air towards the observation hole in the direction extending outward from the melting furnace to form an air curtain that blocks the high-temperature gas in the melting furnace. The blowing direction of the air outlet is perpendicular to the extension direction of the observation hole.
[0008] Beneficial effects: By setting up a purging component, the purging component forms an air curtain by blowing air. The air curtain can block the flames and airflow inside the furnace, avoiding the disturbance of flames and airflow inside the furnace that would cause blurry images of the captured structure, thus making it easier to obtain clear images of the captured structure.
[0009] In one alternative implementation, the purging assembly is connected to a compressed air line so that the blower outlet blows out compressed air.
[0010] Beneficial effects: Compressed air pipelines ensure a continuous and stable airflow source for the purging components, guaranteeing the stable formation of the air curtain and effectively blocking the high-temperature gas from the melting furnace, thus ensuring the clarity of the images acquired by the imaging structure.
[0011] In one optional embodiment, the device further includes: a heat insulation structure disposed on the outside of the furnace, the heat insulation structure having a receiving cavity, the monitoring component disposed within the receiving cavity, the side of the heat insulation structure facing the furnace observation hole being a transparent observation surface, and the light filtering structure disposed on the observation surface.
[0012] Beneficial effects: The thermal insulation structure not only provides a stable working environment for the monitoring components and reduces the impact of high temperatures on equipment performance, but also ensures that the imaging quality of the imaging structure is not affected by the thermal insulation measures through its transparent observation surface design.
[0013] In one optional embodiment, the heat insulation structure includes a cooling structure, which comprises a heat exchange pipeline containing a cooling medium, and both ends of the heat exchange pipeline are connected to a heat exchange system.
[0014] Beneficial effects: The cooling structure effectively reduces the internal temperature of the insulation structure, further ensuring that the monitoring components operate in a suitable temperature environment. This prevents performance degradation or damage to the monitoring components due to high temperatures, extends the service life of the equipment, and also helps improve the quality of images acquired by the imaging structure, thereby enhancing the accuracy of liquid level detection.
[0015] In one alternative embodiment, the monitoring component further includes a guide structure and a movable component, the imaging structure being fixedly connected to the movable component, and the movable component engaging with the guide structure to guide the movement of the imaging structure, causing the imaging structure to move closer to or away from the filter structure.
[0016] Beneficial effects: The design of the movable parts and guide structure makes the position adjustment of the imaging structure more precise and convenient, and allows for flexible adjustment of the imaging distance according to actual monitoring needs to obtain the best imaging effect and improve the accuracy of liquid level detection.
[0017] In one alternative embodiment, the movable component is a sliding plate, the guide structure is a lead screw, the sliding plate has a slider that is threadedly connected to the lead screw, and the shooting structure is fixedly disposed on the end face of the sliding plate away from the lead screw.
[0018] Beneficial effects: The sliding plate and lead screw transmission structure boasts advantages such as high transmission precision and smooth movement, ensuring the imaging structure maintains a stable posture during movement and preventing image quality from being affected by shaking or shifting. Simultaneously, the lead screw drive also features a self-locking function; when the motor stops rotating, the sliding plate remains in its current position, preventing slippage due to gravity or other external forces, thus guaranteeing the positioning accuracy of the imaging structure.
[0019] In one optional embodiment, a support component is provided at the bottom of the monitoring component to support the monitoring component so that the monitoring component and the observation hole are located on the same plane.
[0020] Beneficial effects: The support components enable the device to adapt to furnaces of different specifications and installation requirements, improving the device's versatility and flexibility. At the same time, the robust design of the support components ensures the stability of the monitoring components during operation, reducing errors caused by vibration or shaking, and further improving the accuracy of liquid level detection.
[0021] In one alternative embodiment, the support assembly includes a bracket and a pan-tilt unit, the bracket being fixedly connected to the pan-tilt unit, the bracket being placed on the ground, and the pan-tilt unit being connected to the monitoring assembly.
[0022] Beneficial effects: Through the coordinated operation of the bracket and the pan-tilt unit, the monitoring component can be flexibly adjusted in position and angle in three-dimensional space. This allows the monitoring component to be accurately aligned with the marker bricks inside the melting furnace and the image formed on the surface of the molten glass. Regardless of changes in the specifications and installation location of the melting furnace, it can ensure that the imaging structure obtains clear and accurate images, thereby providing reliable data support for subsequent liquid level detection and further improving the adaptability and detection accuracy of the entire melting furnace glass liquid level monitoring device.
[0023] In one optional embodiment, the system further includes a control system, which includes a controller and a human-machine interface, wherein the controller is connected to the shooting structure and the human-machine interface respectively.
[0024] Beneficial effects: By setting up a control system, centralized control and intelligent management of multiple key components were achieved. The controller not only receives real-time image data transmitted from the imaging structure, but also preprocesses this data, such as image enhancement and noise reduction, to improve image quality and provide a more accurate basis for subsequent liquid level analysis. Simultaneously, the close connection between the controller and the human-machine interface allows operators to intuitively view the real-time situation inside the melting furnace, including the position of the marker bricks and the state of the molten glass surface, thereby making more accurate judgments and decisions. Attached Figure Description
[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of a glass level monitoring device for a melting furnace according to an embodiment of the present invention.
[0027] Explanation of reference numerals in the attached figures: 1. Imaging structure; 2. Melting furnace; 3. Observation hole; 4. Filter structure; 5. Purge assembly; 6. Compressed air pipeline; 7. Heat insulation structure; 701. Observation surface; 8. Heat exchange pipeline; 9. Lead screw; 10. Slide plate; 11. Slider; 12. Support assembly; 1201. Bracket; 1202. Gimbal; 13. Control system; 1301. Controller; 1302. Human-machine interface. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0029] The following is combined Figure 1 The following describes embodiments of the present invention.
[0030] According to an embodiment of the present invention, a glass level monitoring device for a melting furnace is provided, comprising: a monitoring component and a heat insulation structure 7. The monitoring component includes an imaging structure 1, which is disposed on the outside of the melting furnace 2, with the imaging end of the imaging structure 1 facing the observation hole 3 of the melting furnace 2. The imaging structure 1 is used to acquire the image of a marker brick inside the melting furnace 2 and the image formed on the surface of the molten glass. A light filtering structure 4 is disposed between the imaging structure 1 and the observation hole 3, with the light filtering structure 4 facing the imaging end of the imaging structure 1.
[0031] Specifically, the shooting structure 1 is a camera, and the shooting end of the shooting structure 1 is the lens of the camera. The lens of the camera faces the observation hole 3 of the melting furnace 2 and is set opposite to the observation hole 3 of the melting furnace 2 to capture the image of the marker brick inside the melting furnace 2 and the image formed on the surface of the molten glass. The filter structure 4 is an attenuator, which is set between the lens of the camera and the observation hole 3. The attenuator can attenuate the reflection of strong light inside the furnace, avoid overexposure of the image due to high brightness light, and improve the clarity of the reflection outline.
[0032] By setting up filter structure 4, the problem of light interference caused by strong light reflection in the high-temperature environment inside the kiln is effectively solved, avoiding image distortion and thus significantly improving the accuracy of liquid level detection. The use of filter structure 4 also extends the service life of monitoring equipment such as cameras, reduces equipment damage and maintenance frequency caused by strong light exposure, and further reduces production costs.
[0033] In one embodiment, a purging assembly 5 is provided on the outside of the furnace 2. The purging assembly 5 is located on one side of the observation hole 3. The purging assembly 5 has a blower. The blower is used to blow air towards the observation hole 3 in the direction of extension outward of the furnace 2 to form an air curtain that blocks the high-temperature gas of the furnace 2. The blowing direction of the blower is perpendicular to the extension direction of the observation hole 3.
[0034] Specifically, such as Figure 1As shown, the purging assembly 5 is positioned below the observation hole 3. The air outlet (not shown) of the purging assembly 5 is located on the side of the purging assembly 5 facing the extension direction of the observation hole 3. The air outlet blows air towards the observation hole 3 in the direction extending outward from the furnace 2, forming an air curtain at the opening connecting the observation hole 3 to the outside of the furnace 2. This air curtain can block the high-temperature gas from the furnace 2. In other embodiments, the purging assembly 5 can be positioned above, to the left, or to the right of the observation hole 3, with the air outlet blowing air towards the observation hole 3 in the direction extending outward from the furnace 2.
[0035] By setting up the purging component 5, the purging component 5 forms an air curtain by blowing air. The air curtain can block the flames and airflow inside the furnace 2, avoiding the disturbance of the flames and airflow inside the furnace that would cause the imaging structure 1 to be blurry, which is beneficial for the imaging structure 1 to obtain clear images.
[0036] In one embodiment, the purging assembly 5 is connected to the compressed air line 6 so that compressed air is blown out from the air outlet.
[0037] Specifically, such as Figure 1 As shown, one end of the compressed air pipeline 6 is connected to the air inlet of the purging assembly 5, and the other end is connected to an external compressed air source. The compressed air source can be an air compressor or other equipment that can continuously and stably provide compressed air. When the compressed air source is turned on, the compressed air is delivered to the purging assembly 5 through the compressed air pipeline 6, and then blown out from the air outlet to form an air curtain.
[0038] The compressed air pipeline 6 ensures a continuous and stable airflow source for the purging assembly 5, ensuring the stable formation of the air curtain, thereby continuously and effectively blocking the high-temperature gas in the melting furnace 2 and ensuring the clarity of the images acquired by the imaging structure 1.
[0039] In one embodiment, the system further includes a heat insulation structure 7. The heat insulation structure 7 is disposed on the outside of the furnace 2, and has a receiving cavity. The monitoring component is disposed in the receiving cavity. The side of the heat insulation structure 7 facing the observation hole 3 of the furnace 2 is a transparent observation surface 701, and a light filtering structure 4 is disposed on the observation surface 701.
[0040] Specifically, such as Figure 1As shown, the heat insulation structure 7 has a hollow interior forming a cavity that can completely accommodate the monitoring components. The heat insulation structure 7 is made of high-temperature resistant and heat-insulating materials, such as ceramic fiberboard, which effectively blocks the high temperature emitted by the melting furnace 2, reducing the impact of high temperature on the monitoring components and ensuring that the monitoring components operate in a suitable temperature environment. The transparent observation surface 701 is made of high-transmittance glass or quartz, ensuring that the imaging structure 1 can clearly obtain the image of the marker brick inside the melting furnace 2 and its image formed on the molten glass surface through the observation surface 701, while also providing some heat insulation and protection. The light filter structure 4 is tightly fitted to the inner side of the observation surface 701, ensuring that the light reflected from inside the melting furnace 2 must first be attenuated by the light filter structure 4 before reaching the imaging structure 1, thereby further improving the filtering effect.
[0041] The heat insulation structure 7 not only provides a stable working environment for the monitoring components, reducing the impact of high temperatures on equipment performance, but also ensures that the imaging quality of the imaging structure 1 is not affected by the heat insulation measures through its transparent observation surface 701. The close fit between the filter structure 4 and the observation surface 701 further optimizes the light processing path, enhances the filtering effect, effectively avoids image distortion, and improves the accuracy of liquid level detection. In addition, this design facilitates equipment maintenance and repair. When it is necessary to inspect or replace the monitoring components, only the corresponding part of the heat insulation structure 7 needs to be opened, without the need for large-scale disassembly of the entire device, greatly improving work efficiency.
[0042] Furthermore, the thermal insulation structure 7 has a door (not shown), which is connected to the main body of the thermal insulation structure 7 by means of hinges or slide rails, etc., for easy opening and closing. The door is equipped with a sealing device, such as a sealing strip, which ensures the airtightness of the interior of the thermal insulation structure 7 when the door is closed, preventing outside air from entering the interior of the thermal insulation structure 7 and affecting the thermal insulation effect and the working environment of the monitoring components.
[0043] In one embodiment, the heat insulation structure 7 has a cooling structure, which includes a heat exchange pipe 8, a cooling medium is provided in the heat exchange pipe 8, and both ends of the heat exchange pipe 8 are connected to the heat exchange system.
[0044] Specifically, such as Figure 1 As shown, the heat exchange pipes 8 are arranged in a spiral or serpentine shape within the cavity of the insulation structure 7 to increase the heat exchange area and improve heat exchange efficiency. The cooling medium can be water, heat transfer oil, or other substances with good thermal conductivity. The heat exchange system (not shown) includes a heat exchanger, a circulating pump, and other equipment. The circulating pump draws the heat exchange medium from one end of the heat exchanger and sends it into the heat exchange pipes 8. During its flow within the heat exchange pipes 8, the cooling medium absorbs heat from the insulation structure 7 and then returns to the heat exchanger. In the heat exchanger, it exchanges heat with the heat exchange medium, releasing the absorbed heat and thus achieving cooling within the insulation structure 7.
[0045] The cooling structure effectively reduces the internal temperature of the insulation structure 7, further ensuring that the monitoring components operate in a suitable temperature environment, avoiding performance degradation or damage to the monitoring components due to high temperature, extending the service life of the equipment, and also helping to improve the quality of images acquired by the imaging structure 1, thereby improving the accuracy of liquid level detection.
[0046] In one embodiment, the monitoring component further includes a guide structure and a movable component. The imaging structure 1 is fixedly connected to the movable component, and the movable component is movably engaged with the guide structure to guide the movement of the imaging structure 1, so that the imaging structure 1 moves closer to or away from the filter structure 4.
[0047] Specifically, such as Figure 1 As shown, when it is necessary to adjust the distance between the shooting structure 1 and the filter structure 4, simply drive the movable part to move relative to each other along the guide direction of the guide structure, so that the shooting structure 1 can move closer to or further away from the filter structure 4.
[0048] The design of the movable parts and guide structure makes the position adjustment of the imaging structure 1 more precise and convenient, and allows for flexible adjustment of the imaging distance according to actual monitoring needs to obtain the best imaging effect and improve the accuracy of liquid level detection.
[0049] In one embodiment, the movable component is a slide plate 10, the guide structure is a lead screw 9, the slide plate 10 has a slider 11 that is threadedly connected to the lead screw 9, and the shooting structure 1 is fixedly disposed on the end face of the slide plate 10 away from the lead screw 9.
[0050] Specifically, such as Figure 1 As shown, the slider 11 on the slide plate 10 is engaged with the thread on the lead screw 9. One end of the lead screw 9 is equipped with a motor (not shown), which is connected to the lead screw 9 to drive the lead screw 9 to rotate. The slider 11 will move linearly along the axis of the lead screw 9, thereby driving the slide plate 10 and the shooting structure 1 fixed on the slide plate 10 to move together.
[0051] The transmission structure of the slide plate 10 and the lead screw 9 has the advantages of high transmission accuracy and smooth movement, which can ensure that the imaging structure 1 maintains a stable posture during movement and avoids affecting the image quality due to shaking or displacement. At the same time, the lead screw 9 transmission also has a self-locking function. When the motor stops rotating, the slide plate 10 can remain in the current position and will not slip due to gravity or other external forces, thus ensuring the positioning accuracy of the imaging structure 1.
[0052] In other embodiments, the movable component may be a slider 11, the guide structure may be a linear guide rail, the slider 11 slides with the linear guide rail, and the shooting structure 1 is fixedly installed on the slider 11.
[0053] In one embodiment, a support component 12 is provided at the bottom of the monitoring component, the support component 12 is used to support the monitoring component so that the monitoring component and the observation hole 3 are located on the same plane.
[0054] Specifically, such as Figure 1 As shown, the support assembly 12 has a lead screw bracket (not shown), which is located on the top of the support assembly 12. The top of the support assembly 12 can extend into the receiving cavity from the bottom of the heat insulation structure 7. The lead screw 9 is rotatably mounted on the lead screw bracket. The door of the heat insulation structure 7 can be located at the bottom of the heat insulation structure 7. By opening the door, the top of the support assembly 12 and the monitoring component on the top of the support assembly 12 are placed into the heat insulation structure 7. The heat insulation structure 7 is fixedly connected to the support assembly 12, thereby allowing the support assembly 12 to support the heat insulation structure 7. The support assembly 12 has a lifting structure (not shown). By operating the lifting structure, the height of the support assembly 12 can be adjusted, so that the monitoring component and the observation hole 3 are precisely located on the same plane, ensuring that the imaging structure 1 can accurately acquire the image of the marker brick in the melting furnace 2 and the image formed on the surface of the molten glass. When it is necessary to adjust the height of the monitoring component, simply activate the lifting structure to raise or lower it in the set direction until the monitoring component reaches the appropriate position. The support component 12 enables the device to adapt to furnaces 2 of different specifications and installation requirements, improving the versatility and flexibility of the liquid level monitoring device. At the same time, the robust design of the support component 12 can also ensure the stability of the monitoring component during operation, reduce errors caused by vibration or shaking, and further improve the accuracy of liquid level detection.
[0055] In one embodiment, the support component 12 includes a bracket 1201 and a pan-tilt unit 1202. The bracket 1201 and the pan-tilt unit 1202 are fixedly connected. The bracket 1201 is placed on the ground, and the pan-tilt unit 1202 is connected to the monitoring component.
[0056] Specifically, such as Figure 1As shown, the pan-tilt unit 1202 is mounted on top of the bracket 1201. A lead screw support is mounted on the pan-tilt unit 1202, which can rotate to adjust the shooting angle of the monitoring component, adapting to different positions of the observation hole 3 and the marker brick. The pan-tilt unit 1202 allows the shooting structure 1 to be flexibly adjusted in both horizontal and vertical directions, ensuring that the shooting structure 1 can always acquire images inside the furnace 2 at the optimal angle. The bracket 1201 has a lifting structure, which can be in the form of a hydraulic lifting column or an electric push rod. The hydraulic lifting column is powered by a hydraulic system, achieving smooth and precise lifting operations, capable of withstanding large loads, and ensuring the safety of the monitoring component during lifting. The electric push rod is driven by a motor to rotate the lead screw 9, causing the push rod to move linearly, thus achieving the lifting function. When it is necessary to adjust the height of the monitoring component according to the actual situation of the furnace 2, the operator can control the hydraulic system or the electric push rod to raise or lower the bracket 1201 according to the set speed and distance. During the lifting and lowering process, the gimbal 1202 maintains a stable connection with the monitoring components, ensuring that the shooting angle does not change due to the lifting and lowering of the bracket 1201. An opening is provided at the bottom of the heat insulation structure 7 to facilitate the insertion of the bracket 1201. The heat insulation structure 7 is equipped with a connector for the bracket 1201, and the bracket 1201 is equipped with a mating component for fixing to the connector. The connector can be a bolt, clip, or similar structure, while the mating component is a suitable screw hole, slot, or similar structure. Through the tight connection of the connector and the mating component, the heat insulation structure 7 and the bracket 1201 can be securely connected together to form a whole, facilitating installation and disassembly.
[0057] Through the coordinated operation of the bracket 1201 and the pan-tilt unit 1202, the monitoring component can be flexibly adjusted in position and angle within three-dimensional space. This allows the monitoring component to be precisely aligned with the marker brick inside the melting furnace 2 and the image it forms on the surface of the molten glass. Regardless of changes in the specifications and installation position of the melting furnace 2, it ensures that the imaging structure 1 acquires clear and accurate images, thereby providing reliable data support for subsequent liquid level detection and further improving the adaptability and detection accuracy of the entire melting furnace 2 glass liquid level monitoring device.
[0058] In one embodiment, the system further includes a control system 13, which includes a controller 1301 and a human-machine interface 1302. The controller 1301 is connected to the shooting structure 1 and the human-machine interface 1302, respectively.
[0059] Specifically, such as Figure 1As shown, the shooting structure 1 can transmit the captured real-time image to the controller 1301. The controller 1301 can process the real-time image and then transmit it to the human-machine interface 1302 for display. The controller 1301 is electrically connected to the purging component 5, the heat exchange system, the motor, the gimbal 1202, and the lifting structure. The operator can control the purging component 5, the heat exchange system, the motor, the rotation direction of the gimbal 1202, and the start and stop of the lifting structure through the controller 1301 on the human-machine interface 1302.
[0060] By setting up the control system 13, centralized control and intelligent management of multiple key components are achieved. The controller 1301, as the core processing unit, is not only responsible for receiving real-time image data transmitted from the imaging structure 1, but also for preprocessing this data, such as image enhancement and noise reduction, to improve image quality and provide a more accurate basis for subsequent liquid level analysis. Simultaneously, the close connection between the controller 1301 and the human-machine interface 1302 allows operators to intuitively view the real-time situation inside the melting furnace 2, including the position of the marker bricks and the state of the molten glass surface, thereby making more accurate judgments and decisions.
[0061] When disturbances in the flames and airflow within the kiln cause blurry images of the imaging structure 1, the purging assembly 5 can be activated via the human-machine interface 1302. The human-machine interface 1302 transmits control information to the controller 1301, which then activates the purging assembly 5. A flow control valve can be installed on the compressed air pipeline 6. This flow control valve is electrically connected to the controller 1301, and its opening can be controlled via the human-machine interface 1302 to increase or decrease the flow rate of compressed air.
[0062] The insulation structure 7 contains a temperature sensor connected to the controller 1301. The sensor detects the real-time temperature within the insulation structure 7 and transmits this information to the controller 1301. The controller 1301 then transmits the temperature information to the human-machine interface 1302 for display. When the temperature is too high, the heat exchange system can be activated via the human-machine interface 1302. The human-machine interface 1302 transmits control information to the controller 1301, which then activates the heat exchange system. Alternatively, a set temperature value can be input into the controller 1301. When the temperature within the insulation structure 7 exceeds the set temperature value, the controller 1301 will automatically activate the heat exchange system. A flow control valve can be installed on the heat exchange pipeline 8. This valve is electrically connected to the controller 1301. The opening of the flow control valve can be controlled via the human-machine interface 1302 to increase or decrease the flow rate of the cooling medium. Alternatively, the controller 1301 can control the opening of the flow control valve based on the set temperature.
[0063] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A glass level monitoring device for a melting furnace, characterized in that, include: The monitoring component includes a camera structure (1), which is located on the outside of the melting furnace (2). The camera end of the camera structure (1) is positioned opposite to the observation hole (3) of the melting furnace (2). The camera structure (1) is used to acquire the image of the marker brick inside the melting furnace (2) and its formation on the surface of the molten glass. A filter structure (4) is disposed between the shooting structure (1) and the observation hole (3), and the filter structure (4) is disposed opposite to the shooting end of the shooting structure (1).
2. The glass level monitoring device for a melting furnace according to claim 1, characterized in that, A purging assembly (5) is provided on the outside of the furnace (2). The purging assembly (5) is located on one side of the observation hole (3). The purging assembly (5) has a blower. The blower is used to blow air towards the observation hole (3) in the direction of extension to the outside of the furnace (2) to form an air curtain that blocks the gas in the furnace (2). The blowing direction of the blower is perpendicular to the extension direction of the observation hole (3).
3. The glass level monitoring device for a melting furnace according to claim 2, characterized in that, The purging assembly (5) is connected to the compressed air pipeline (6) so that the air outlet blows out compressed air.
4. The glass level monitoring device for a melting furnace according to claim 1, characterized in that, Also includes: The heat insulation structure (7) is located on the outside of the furnace (2). The heat insulation structure (7) has a receiving cavity. The monitoring component is located in the receiving cavity. The side of the heat insulation structure (7) facing the observation hole (3) of the furnace (2) is a transparent observation surface (701). The light filtering structure (4) is located on the observation surface (701).
5. The glass level monitoring device for a melting furnace according to claim 4, characterized in that, The heat insulation structure (7) has a cooling structure, which includes a heat exchange pipeline (8). The heat exchange pipeline (8) contains a cooling medium, and both ends of the heat exchange pipeline (8) are connected to the heat exchange system.
6. The glass level monitoring device for a melting furnace according to any one of claims 1 to 5, characterized in that, The monitoring component also includes a guide structure and a movable component. The shooting structure (1) is fixedly connected to the movable component, and the movable component is movably engaged with the guide structure to provide guidance for the movement of the shooting structure (1), so that the shooting structure (1) moves closer to or away from the filter structure (4).
7. The glass level monitoring device for a melting furnace according to claim 6, characterized in that, The movable component is a sliding plate (10), the guide structure is a lead screw (9), the sliding plate (10) has a slider (11) that is threadedly connected to the lead screw (9), and the shooting structure (1) is fixedly disposed on the end face of the sliding plate (10) away from the lead screw (9).
8. The glass level monitoring device for a melting furnace according to claim 6, characterized in that, The bottom of the monitoring component is provided with a support component (12), which is used to support the monitoring component so that the monitoring component and the observation hole (3) are located on the same plane.
9. The glass level monitoring device for a melting furnace according to claim 8, characterized in that, The support component (12) includes a bracket (1201) and a pan-tilt unit (1202). The bracket (1201) is fixedly connected to the pan-tilt unit (1202). The bracket (1201) is placed on the ground, and the pan-tilt unit (1202) is connected to the monitoring component.
10. The glass level monitoring device for a melting furnace according to any one of claims 7 to 9, characterized in that, Also includes: The control system (13) includes a controller (1301) and a human-machine interface (1302), wherein the controller (1301) is connected to the shooting structure (1) and the human-machine interface (1302) respectively.