Inside-furnace working condition inspection device for glass annealing furnace

By designing an external ultrasonic testing and camera-based inspection device for the internal working conditions of a glass annealing furnace, the safety hazards of inspection devices under high-temperature environments were solved, enabling safe and comprehensive internal inspection of the glass annealing furnace.

CN121721141APending Publication Date: 2026-03-24FLAT LIGHT ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-24
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing endoscope inspection devices for glass annealing furnaces are prone to causing burns in high-temperature environments, posing a safety hazard.

Method used

A glass annealing furnace internal condition inspection device was designed, comprising horizontal and vertical ultrasonic detectors, a linear motor, and a heat-resistant motor. This device enables comprehensive inspection of the internal conditions of the glass annealing furnace through external detection, and uses ultrasonic detection and cameras for data recording, avoiding direct entry into the high-temperature environment.

Benefits of technology

It enables comprehensive monitoring of the internal working conditions of glass annealing furnaces, avoiding instrument damage and burn accidents, and improving the safety and reliability of the monitoring.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an inspection device for working conditions in a glass annealing furnace, and belongs to the technical field of glass annealing furnaces, the inspection device comprises a glass annealing furnace body, a transverse ultrasonic detector and a vertical ultrasonic detector, the transverse ultrasonic detector and the vertical ultrasonic detector are used for inspecting stations in the glass annealing furnace, and a counterweight plate is arranged below the glass annealing furnace body; two heat insulation plates are welded to the top end of the balance weight plate, transverse linear motors are embedded in the side faces of the two heat insulation plates, moving parts of the two transverse linear motors are jointly connected with a heat insulation pipe connected to the periphery of the glass annealing furnace body in a sleeving mode, and the side face of the heat insulation pipe is rotationally connected with a hollow gear through a bearing; the hollow gear is fixedly connected with the transverse ultrasonic detector; the hollow gear is in meshed connection with a driving gear, and a heat-resisting motor used for driving the driving gear is installed on the periphery of the heat insulation pipe. The in-furnace working condition inspection device for the glass annealing furnace does not go deep into the glass annealing furnace and is not easy to damage instruments.
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Description

Technical Field

[0001] This invention belongs to the technical field of glass annealing furnaces, and in particular, it is a device for checking the working conditions inside a glass annealing furnace. Background Technology

[0002] Each zone of the glass annealing furnace is equipped with inspection holes, which need to be checked regularly to ensure the furnace's operating conditions. The inspection holes are fitted with insulating cotton plugs for sealing. However, the temperature inside the glass annealing furnace is high, and direct contact can easily cause burns. Although heat-resistant inspection devices are used to reach inside the furnace for inspection, danger can still occur.

[0003] A search revealed a Chinese patent document (authorization announcement number CN218089336U) entitled "A Device for Inspecting the Internal Operating Conditions of a Glass Annealing Furnace," which includes an endoscope for inspecting the operating status of the glass annealing furnace. The furnace body has an inspection hole in its wall and comprises a tube, high-temperature resistant glass, and a cooling fan. The tube can be movably inserted into the inspection hole of the furnace body. One end of the tube is fitted with high-temperature resistant glass that can seal that end, and the other end is connected to a hollow handle with open ends. An endoscope is housed inside the tube, with its camera correspondingly attached to the high-temperature resistant glass. The endoscope's display screen is mounted at the position corresponding to the connection between the tube and the handle. This invention has a simple structure and is easy to use. The endoscope inside the tube allows for inspection of the operating conditions inside the glass annealing furnace. Although the above patent utilizes a heat-resistant inspection device to penetrate deep into the glass annealing furnace for inspection, it still carries the risk of danger. Summary of the Invention

[0004] The purpose of this invention is to provide a device for inspecting the working conditions inside a glass annealing furnace, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a glass annealing furnace internal condition inspection device, comprising a glass annealing furnace body, wherein a counterweight plate is provided below the glass annealing furnace body; Two heat insulation plates are welded to the top of the counterweight plate. A transverse linear motor is embedded in the side of each heat insulation plate. The moving parts of the two transverse linear motors are connected to a heat insulation tube that is sleeved on the outer periphery of the glass annealing furnace body. A hollow gear is rotatably connected to the side of the heat insulation tube through a bearing. The hollow gear is connected and fixed to the transverse ultrasonic detector. The hollow gear is meshed with a drive gear, and a heat-resistant motor for driving the drive gear is installed on the outer periphery of the heat insulation tube.

[0006] As a preferred embodiment, the two heat insulation plates are symmetrically arranged and are T-shaped. The length of the heat insulation plates is greater than the length of the glass annealing furnace body. The glass annealing furnace body is equipped with a horizontal ultrasonic detector and a vertical ultrasonic detector for inspecting the working positions inside the glass annealing furnace.

[0007] As a preferred embodiment, two auxiliary plates are fixedly connected to the top of the heat insulation plate, and a lateral linear motor is installed on the top of the auxiliary plates. The length of the auxiliary plates is greater than half the width of the glass annealing furnace body.

[0008] As a preferred embodiment, the moving part of the lateral linear motor is connected to a side-mounted T-shaped adjustment plate, and a vertical linear motor is installed on the side of the adjustment plate. The height of the adjustment plate is greater than the height of the glass annealing furnace body.

[0009] As a preferred embodiment, the moving part of the vertical linear motor is connected to a mounting block, and the mounting block is connected and fixed to the vertical ultrasonic detector.

[0010] As a preferred embodiment, cameras for recording are installed on the outer periphery of both the horizontal and vertical ultrasonic detectors.

[0011] As a preferred embodiment, multiple fans for heat dissipation protection are installed on the inner wall of the hollow gear, the top of the counterweight plate, and the side of the heat insulation plate.

[0012] As a preferred embodiment, multiple temperature sensors for temperature measurement are installed on the inner wall of the hollow gear, the top of the counterweight plate, and the side of the heat insulation plate.

[0013] As a preferred embodiment, multiple heat-insulating legs are installed between the counterweight plate and the glass annealing furnace body, and the heat-resistant motor is located below the glass annealing furnace body.

[0014] As a preferred embodiment, the top of the counterweight plate has multiple round holes, and fixing bolts for fixing to the ground are installed in the round holes.

[0015] Compared with the prior art, the technical effects and advantages of the present invention are as follows: This glass annealing furnace internal condition inspection device, thanks to the design of horizontal and vertical ultrasonic detectors, can comprehensively perform ultrasonic testing on the glass annealing furnace body and compare the data with the normal data to understand the internal condition of the glass annealing furnace body. Because all the structures are on the outside, the instruments are less likely to be damaged compared to going deep into the glass annealing furnace. This glass annealing furnace internal condition inspection device benefits from the design of a horizontal linear motor and a heat-resistant motor. The horizontal linear motor can drive in a straight line, and the heat-resistant motor drives the drive gear to rotate, which in turn drives the hollow gear and the horizontal ultrasonic detector to rotate, thus achieving comprehensive inspection. This glass annealing furnace internal condition inspection device benefits from the design of lateral and vertical linear motors. The lateral and vertical linear motors drive the two-dimensional movement of the vertical ultrasonic detector, enabling detection on both sides. This glass annealing furnace internal condition inspection device does not penetrate deep into the glass annealing furnace, thus reducing the risk of instrument damage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A; Figure 3 This is a left-side view of the hollow gear of the present invention; Figure 4 This is a left-side view of the heat insulation pipe of the present invention; Figure 5 This is a left-side view of the heat insulation plate of the present invention; Figure 6 This is a schematic diagram of the structure after the adjustment plate of the present invention has been adjusted.

[0017] Explanation of reference numerals in the attached figures: In the picture: 1. Glass annealing furnace body; 2. Horizontal ultrasonic detector; 3. Vertical ultrasonic detector; 4. Counterweight plate; 5. Heat insulation plate; 6. Horizontal linear motor; 7. Heat insulation pipe; 8. Hollow gear; 9. Drive gear; 10. Heat-resistant motor; 11. Auxiliary plate; 12. Lateral linear motor; 13. Adjustment plate; 14. Vertical linear motor; 15. Mounting block; 16. Camera; 17. Fan; 18. Temperature sensor; 19. Heat insulation leg. Detailed Implementation

[0018] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0019] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0020] Please see Figures 1 to 6 A glass annealing furnace internal condition inspection device, in this embodiment, includes a glass annealing furnace body 1, and the glass annealing furnace body 1 is equipped with a horizontal ultrasonic detector 2 and a vertical ultrasonic detector 3 for inspecting the working positions inside the glass annealing furnace. A counterweight plate 4 is provided below the glass annealing furnace body 1. The glass annealing furnace body 1 is equipped with a horizontal ultrasonic detector 2 and a vertical ultrasonic detector 3 for inspecting the workstations inside the furnace. The ultrasonic detector is a device that uses ultra-high frequency sound waves for detection and analysis. Sound waves are a form of propagation of the mechanical vibration state (or energy) of an object. Vibration refers to the reciprocating motion of a particle around its equilibrium position. Ultrasonic vibration frequencies are greater than 20 kHz, exceeding the upper limit of human hearing (20,000 Hz), and these inaudible sound waves are called ultrasound. They typically propagate longitudinally within an elastic medium, and are a form of energy propagation characterized by high frequency, short wavelength, and good beamforming and directionality within a straight line over a certain distance.

[0021] Glass annealing furnaces are industrial equipment used for the heat treatment of glass products. They are mainly used for primary annealing of everyday glass (bottles, cups, etc.) and lighting glass, as well as secondary stress-relief annealing after reprocessing. They can also handle precision annealing processes for optical glass, microcrystalline glass, and other materials. Their core function is to eliminate thermal stress during the product forming process through precise temperature control, thereby improving the product's mechanical strength and yield.

[0022] This equipment is structurally divided into mesh belt type and roller conveyor type. The former uses a stainless steel mesh belt for conveying, while the latter is equipped with ceramic rollers to adapt to flat glass processing. The heating system includes two types of heat sources: electric heating (silicon carbide rods, electric heating wires) and gas heating (natural gas, coal gas), with a maximum operating temperature range of 650℃ to 1300℃. The temperature control technology adopts a PID intelligent digital display system, combined with an SCR silicon controlled rectifier module to achieve an accuracy of ±1℃. Some models support multi-segment program temperature control and remote monitoring. The furnace body adopts an all-steel structure with an aluminum silicate fiber insulation layer. The cooling zone is designed with natural cooling or air cooling devices. The furnace length can be customized from 6 to 60 meters to meet different production needs.

[0023] Two heat insulation plates 5 are welded to the top of the counterweight plate 4. A transverse linear motor 6 is embedded in the side of each heat insulation plate 5. The moving parts of the two transverse linear motors 6 are connected to a heat insulation tube 7 that is sleeved on the outer periphery of the glass annealing furnace body 1. A hollow gear 8 is rotatably connected to the side of the heat insulation tube 7 through a bearing. The hollow gear 8 is connected and fixed to the transverse ultrasonic detector 2. The hollow gear 8 is meshed with a drive gear 9. A heat-resistant motor 10 for driving the drive gear 9 is installed on the outer periphery of the heat insulation tube 7. The transverse linear motor 6 can drive the drive gear 9 linearly, and the heat-resistant motor 10 drives the drive gear 9 to rotate, which in turn drives the hollow gear 8 and the transverse ultrasonic detector 2 to rotate, thus achieving comprehensive detection.

[0024] Two heat insulation plates 5 are symmetrically arranged and are T-shaped. The length of the heat insulation plate 5 is greater than the length of the glass annealing furnace body 1.

[0025] For two-dimensional adjustment, two auxiliary plates 11 are fixedly connected to the top of the heat insulation plate 5. A lateral linear motor 12 is installed on the top of the auxiliary plate 11. The length of the auxiliary plate 11 is greater than half the width of the glass annealing furnace body 1. The moving part of the lateral linear motor 12 is connected to a side-placed T-shaped adjustment plate 13. A vertical linear motor 14 is installed on the side of the adjustment plate 13. The height of the adjustment plate 13 is greater than the height of the glass annealing furnace body 1. The moving part of the vertical linear motor 14 is connected to a mounting block 15. The mounting block 15 is connected and fixed to the vertical ultrasonic detector 3. The lateral linear motor 12 and the vertical linear motor 14 drive the vertical ultrasonic detector 3 to move in two dimensions, so that the vertical ultrasonic detector 3 can detect both sides.

[0026] To meet usage requirements, cameras 16 for recording are installed on the outer periphery of both the horizontal ultrasonic detector 2 and the vertical ultrasonic detector 3. Multiple fans 17 for heat dissipation protection are installed on the inner wall of the hollow gear 8, the top of the counterweight plate 4, and the side of the heat insulation plate 5. Multiple temperature sensors 18 for temperature measurement are installed on the inner wall of the hollow gear 8, the top of the counterweight plate 4, and the side of the heat insulation plate 5.

[0027] Multiple heat-insulating legs 19 are installed between the counterweight plate 4 and the glass annealing furnace body 1. The heat-resistant motor 10 is located below the glass annealing furnace body 1. Multiple round holes are opened at the top of the counterweight plate 4, and fixing bolts for fixing to the ground are installed in the round holes.

[0028] This application is conducted in a high-temperature environment. All structures and instruments used are heat-resistant and are regularly maintained and replaced.

[0029] The glass annealing furnace body 1, the horizontal ultrasonic detector 2, the vertical ultrasonic detector 3, the horizontal linear motor 6, the heat-resistant motor 10, the lateral linear motor 12, the vertical linear motor 14, the camera 16, the fan 17, and the temperature sensor 18 are all conventional instruments. Their working principles, dimensions, and models are irrelevant to the function of this application, so they will not be described in detail. The control method of this invention is through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. In order to facilitate the inspection, maintenance, and parts replacement of the device, the parts inside a single device are usually from the same manufacturer and of the same model, function, and batch. Therefore, even if there is a certain difference between two or more electrical control devices, the synchronous movement of the electrical control devices can still be maintained under the action of the controller. The power supply is also common knowledge in the field. Furthermore, this invention is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail in this invention. All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art.

[0030] Working principle The glass annealing furnace internal condition inspection device has a horizontal linear motor 6 that can drive it linearly, and a heat-resistant motor 10 that drives the drive gear 9 to rotate, which in turn drives the hollow gear 8 and the horizontal ultrasonic detector 2 to rotate, so as to achieve comprehensive inspection. The lateral linear motor 12 and the vertical linear motor 14 drive the vertical ultrasonic detector 3 to move in two dimensions, enabling the vertical ultrasonic detector 3 to perform detection on both sides.

[0031] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for inspecting the working conditions inside a glass annealing furnace, comprising a glass annealing furnace body (1), characterized in that: A counterweight plate (4) is provided below the glass annealing furnace body (1). Two heat insulation plates (5) are welded to the top of the counterweight plate (4). A horizontal linear motor (6) is embedded in the side of each of the two heat insulation plates (5). The moving parts of the two horizontal linear motors (6) are connected to a heat insulation tube (7) sleeved on the outer periphery of the glass annealing furnace body (1). A hollow gear (8) is rotatably connected to the side of the heat insulation tube (7) through a bearing. The hollow gear (8) is connected and fixed to the horizontal ultrasonic detector (2). The hollow gear (8) is meshed with the drive gear (9), and a heat-resistant motor (10) for driving the drive gear (9) is installed on the outer periphery of the heat insulation pipe (7).

2. The glass annealing furnace internal condition inspection device according to claim 1, characterized in that: The two heat insulation plates (5) are symmetrically arranged and are T-shaped. The length of the heat insulation plate (5) is greater than the length of the glass annealing furnace body (1). The glass annealing furnace body (1) is equipped with a horizontal ultrasonic detector (2) and a vertical ultrasonic detector (3) for inspecting the working positions inside the glass annealing furnace.

3. The glass annealing furnace internal condition inspection device according to claim 2, characterized in that: The top of the heat insulation plate (5) is fixedly connected to two auxiliary plates (11), and a lateral linear motor (12) is installed on the top of the auxiliary plate (11). The length of the auxiliary plate (11) is greater than half the width of the glass annealing furnace body (1).

4. The glass annealing furnace internal condition inspection device according to claim 3, characterized in that: The moving part of the lateral linear motor (12) is connected to a side-mounted T-shaped adjustment plate (13), and a vertical linear motor (14) is installed on the side of the adjustment plate (13). The height of the adjustment plate (13) is greater than the height of the glass annealing furnace body (1).

5. The glass annealing furnace internal condition inspection device according to claim 4, characterized in that: The moving part of the vertical linear motor (14) is connected to a mounting block (15), and the mounting block (15) is connected and fixed to the vertical ultrasonic detector (3).

6. The glass annealing furnace internal condition inspection device according to claim 1, characterized in that: Both the horizontal ultrasonic detector (2) and the vertical ultrasonic detector (3) are equipped with cameras (16) for recording.

7. The glass annealing furnace internal condition inspection device according to claim 1, characterized in that: Multiple fans (17) for heat dissipation protection are installed on the inner wall of the hollow gear (8), the top of the counterweight plate (4), and the side of the heat insulation plate (5).

8. The glass annealing furnace internal condition inspection device according to claim 7, characterized in that: Multiple temperature sensors (18) for temperature measurement are installed on the inner wall of the hollow gear (8), the top of the counterweight plate (4), and the side of the heat insulation plate (5).

9. The glass annealing furnace internal condition inspection device according to claim 1, characterized in that: Multiple heat-insulating legs (19) are installed between the counterweight plate (4) and the glass annealing furnace body (1), and the heat-resistant motor (10) is located below the glass annealing furnace body (1).

10. A glass annealing furnace internal condition inspection device according to claim 9, characterized in that: The top of the counterweight plate (4) has multiple round holes, and fixing bolts for fixing to the ground are installed in the round holes.

Citation Information

Patent Citations

  • Inside-furnace working condition inspection device for glass annealing furnace

    CN218089336U