Sealing structure of observation opening of glass kiln
By employing a blocking-type sealing structure at the observation hole of the glass furnace, and using an electric cylinder to drive the upper and lower baffles to form a V-shaped plug seal, the problem of flame burning is solved, and the observation hole is effectively sealed and has a long service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郑州万恒窑业工程有限公司
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-12
AI Technical Summary
The sealing structure of the observation hole in existing glass furnaces is easily burned by flames, resulting in poor sealing effect and short service life.
It adopts a blocking-type sealing structure, including a first sealing shell, a second sealing shell, a bracket, an electric cylinder, an upper baffle, a lower baffle, a sealing strip, and a sealing groove. The upper baffle and the lower baffle are driven to move towards each other by the electric cylinder to form a V-shaped insertion seal, which prevents flame from entering and retracts into the sealing shell when observed.
It effectively prevents flame erosion of the observation window, extends the service life of the sealing structure, and ensures the sealing and safety of the observation hole.
Smart Images

Figure CN224226872U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass production sealing technology, and in particular to the sealing structure of the observation port of a glass furnace. Background Technology
[0002] The observation port is a crucial part of a glass furnace used to observe the glass melting process. By observing the flame conditions inside the furnace and analyzing the temperature of the furnace chamber and molten glass, it is extremely useful for ensuring the furnace's normal operation by monitoring the erosion of the furnace wall bricks. Currently, the sealing mechanism for the observation ports in the regenerators of domestic glass furnaces mainly uses a vertical seal, meaning the observation port plug is perpendicular to the furnace's observation port brick. However, this structure allows the furnace flame to escape easily, and the observation port is highly susceptible to scorching and damage from the flame, resulting in economic losses.
[0003] In the prior art, CN206529395U discloses an observation door structure, in which a door post 2 is mounted on a support 1, and an observation door is mounted on the door post 2, the two being connected by a snap ring 3. In this design, the observation door lacks other structural support, and due to the absence of a flame shielding structure, it suffers from poor sealing and a short service life.
[0004] To address this, a sealing structure for the observation port of a glass furnace was proposed, which has the advantage of being a flame-resistant observation window, thereby solving the problems mentioned in the background technology. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sealing structure for the observation port of a glass furnace.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sealing structure for the observation port of a glass furnace, comprising a furnace body, an observation hole on the surface of the furnace body, and an installation groove around the observation hole, an observation window fixed in the installation groove by an adhesive, the observation window being connected to the observation hole, a high-temperature resistant glass embedded in the right end of the observation window, and a sealing frame fixed to the edge of the high-temperature resistant glass by screws, a first sealing shell fixed to one side of the observation window, and a second sealing shell fixed to the other side of the observation window, brackets welded to the ends of the first and second sealing shells, and an electric cylinder fixedly installed inside the brackets, an upper baffle fixed to the electric cylinder of the first sealing shell, and a sealing strip welded to one end of the upper baffle, a lower baffle fixed to the electric cylinder of the second sealing shell, and a sealing groove corresponding to the sealing strip on one end of the lower baffle, a rubber sleeve fitted to the end of the upper and lower baffles away from the observation window, and the rubber sleeve contacting the inner wall of the first or second sealing shell.
[0007] As a further description of the above technical solution: the observation window extends to one end of the mounting groove and is welded with several mounting ears, and the surfaces of the several mounting ears are all fixedly connected to the kiln body by expansion bolts.
[0008] As a further description of the above technical solution: the cross-section of both the sealing strip and the sealing groove is a V-shaped structure.
[0009] As a further description of the above technical solution: the initial state of the upper baffle and the lower baffle is both inside the first sealing shell and the second sealing shell, and the length of the upper baffle and the lower baffle is adapted to the inner size of the observation window.
[0010] As a further description of the above technical solution: an observation panel is integrally provided at the end of the observation window away from the mounting ear, and the high-temperature resistant glass is embedded in the inner side of the observation panel of the observation window.
[0011] As a further description of the above technical solution: the end face of the first sealing shell or the second sealing shell is provided with a circular through hole corresponding to the push rod of the electric cylinder.
[0012] This utility model has the following beneficial effects:
[0013] In this invention, a blocking-type sealing structure for the observation hole is constructed using a first sealing shell, a second sealing shell, a bracket, an electric cylinder, an upper baffle, a sealing strip, a lower baffle, and a sealing groove. By activating the electric cylinders mounted on the brackets of the first and second sealing shells to extend, the electric cylinders of the first and second sealing shells respectively push the upper and lower baffles to move towards each other, so that the sealing strip with a V-shaped cross section of the upper baffle and the sealing groove with a V-shaped cross section of the lower baffle are inserted into each other, forming a blocking-type sealing structure for the observation hole. This prevents flames from entering the observation hole and damaging the observation window. When observing the flame conditions inside the glass furnace, the upper and lower baffles are promptly retracted into the first and second sealing shells, facilitating observation by the staff. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the sealing structure of the observation port of the glass furnace of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the observation window of the sealing structure of the observation port of the glass furnace of this utility model;
[0016] Figure 3 This is a schematic diagram of the external structure of the observation window of the sealing structure of the observation port of the glass furnace of this utility model.
[0017] Legend:
[0018] 1. Kiln body; 2. Observation hole; 3. Mounting groove; 4. Observation window; 5. High temperature resistant glass; 6. Sealing frame; 7. First sealing shell; 8. Second sealing shell; 9. Support; 10. Electric cylinder; 11. Upper baffle; 12. Rubber sleeve; 13. Sealing strip; 14. Lower baffle; 15. Sealing groove; 16. Mounting ear. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] According to an embodiment of the present invention, a sealing structure for the observation port of a glass furnace is provided.
[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-3As shown, the sealing structure of the observation port of the glass furnace according to an embodiment of the present invention includes a furnace body 1, an observation hole 2 is opened on the surface of the furnace body 1, and an installation groove 3 is opened around the observation hole 2. An observation window 4 is fixed in the installation groove 3 by an adhesive, and the observation window 4 is connected to the observation hole 2. A high-temperature resistant glass 5 is embedded in the right end of the observation window 4, and a sealing frame 6 is fixed to the edge of the high-temperature resistant glass 5 by screws. A first sealing shell 7 is fixed to one side of the observation window 4, and a second sealing shell 8 is fixed to the other side of the observation window 4. A bracket 9 is welded to the end of both the first sealing shell 7 and the second sealing shell 8, and an electric cylinder 10 is fixedly installed inside the bracket 9. An upper baffle 11 is fixed to the electric cylinder 10 of the first sealing shell 7, and a sealing strip 13 is welded to one end of the upper baffle 11. A lower baffle 14 is fixed to the electric cylinder 10 of the second sealing shell 8, and a sealing groove 15 is opened at one end of the lower baffle 14 corresponding to the sealing strip 13. A rubber sleeve 12 is fitted on the end of the upper baffle 11 and the lower baffle 14 away from the observation window 4, and the rubber sleeve 12 is in contact with the inner wall of the first sealing shell 7 or the second sealing shell 8. In order to increase the heat insulation effect of the upper baffle 11 and the lower baffle 14, the surfaces of the upper baffle 11 and the lower baffle 14 are coated with conventional refractory material coating. The rubber sleeve 12 is made of high temperature resistant rubber. In order to increase the blocking and sealing effect of the observation window 4, the first sealing shell 7 and the second sealing shell 8 are set close to the observation hole 2. In this patent, we only use the electric cylinder 10 without improving its structure and function. Its setting method, installation method and electrical connection method can be adjusted and operated by those skilled in the art according to the requirements of its instruction manual. It will not be described in detail here. The electric cylinder 10 is equipped with a matching control switch. The installation position of the control switch is selected according to the actual use requirements to facilitate the operation and control by the operator.
[0022] In one embodiment, a plurality of mounting ears 16 are welded to one end of the observation window 4 extending into the mounting groove 3, and the surfaces of the plurality of mounting ears 16 are fixedly connected to the kiln body 1 by expansion bolts. The installation reliability of the observation window 4 is increased by the setting of the mounting ears 16 and the expansion bolts.
[0023] In one embodiment, both the sealing strip 13 and the sealing groove 15 have V-shaped cross-sections. The use of sealing strips 13 and sealing grooves 15 with V-shaped cross-sections increases the tightness of the connection between the upper baffle 11 and the lower baffle 14.
[0024] In one embodiment, the upper baffle 11 and the lower baffle 14 are initially located inside the first sealing shell 7 and the second sealing shell 8, and the lengths of the upper baffle 11 and the lower baffle 14 are adapted to the inner dimensions of the observation window 4. That is, when the upper baffle 11 and the lower baffle 14 are in contact, they can completely block the inner space of the observation window 4, thereby achieving the purpose of blocking and sealing.
[0025] In one embodiment, an observation panel is integrally provided at the end of the observation window 4 away from the mounting ear 16, and a high-temperature resistant glass 5 is embedded inside the observation panel of the observation window 4. The observation panel, combined with the sealing frame 6 fixed with screws, facilitates the installation and replacement of the high-temperature resistant glass 5.
[0026] In one embodiment, the end face of either the first sealing shell 7 or the second sealing shell 8 is provided with a circular through hole corresponding to the push rod of the electric cylinder 10, so as to make way for the electric cylinder 10.
[0027] Working principle:
[0028] In use, firstly, insert the end of the observation window 4 with the mounting ear 16 into the mounting groove 3 opened around the observation hole 2, and fix the observation window 4 with expansion bolts and adhesive. When the observation window 4 is in a non-observation state, by activating the electric cylinder 10 installed on the bracket 9 of the first sealing shell 7 and the second sealing shell 8, the electric cylinder 10 of the first sealing shell 7 and the second sealing shell 8 will extend, causing the electric cylinder 10 of the first sealing shell 7 and the second sealing shell 8 to push the upper baffle 11 and the lower baffle 14 to move towards each other, so that the sealing strip 13 with a V-shaped cross section of the upper baffle 11 and the lower baffle 14... A V-shaped sealing groove 15 is inserted to form a blocking sealing structure for the observation hole 2, preventing flames from entering the observation hole 2 and damaging the observation window 4, while maintaining the sealing of the observation window 4. When it is necessary to observe the flame conditions inside the glass furnace, the electric cylinder 10 is activated to retract, causing the electric cylinder 10 to drive the upper baffle 11 or the lower baffle 14 to retract in time, so that the upper baffle 11 and the lower baffle 14 are promptly retracted into the first sealing shell 7 and the second sealing shell 8, making it convenient for staff to observe the flame conditions inside the glass furnace.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sealing structure for the observation port of a glass furnace, comprising the furnace body (1), characterized in that: An observation hole (2) is provided on the surface of the kiln body (1), and an installation groove (3) is provided around the observation hole (2). An observation window (4) is fixed in the installation groove (3) by an adhesive, and the observation window (4) is connected to the observation hole (2). A high-temperature resistant glass (5) is embedded in the right end of the observation window (4), and a sealing frame (6) is fixed to the edge of the high-temperature resistant glass (5) by screws. A first sealing shell (7) is fixed to one side of the observation window (4), and a second sealing shell (8) is fixed to the other side of the observation window (4). A bracket is welded to the end of both the first sealing shell (7) and the second sealing shell (8). 9), and an electric cylinder (10) is fixedly installed on the inner side of the bracket (9). An upper baffle (11) is fixed on the electric cylinder (10) of the first sealing shell (7), and a sealing strip (13) is welded to one end of the upper baffle (11). A lower baffle (14) is fixed on the electric cylinder (10) of the second sealing shell (8), and a sealing groove (15) is opened at one end of the lower baffle (14) corresponding to the sealing strip (13). A rubber sleeve (12) is fitted on the end of the upper baffle (11) and the lower baffle (14) away from the observation window (4), and the rubber sleeve (12) is in contact with the inner wall of the first sealing shell (7) or the second sealing shell (8).
2. The sealing structure of the observation port of the glass furnace according to claim 1, characterized in that: The observation window (4) extends to one end of the mounting groove (3) and is welded with several mounting ears (16), and the surfaces of the several mounting ears (16) are fixedly connected to the kiln body (1) by expansion bolts.
3. The sealing structure of the observation port of the glass furnace according to claim 1, characterized in that: The cross-sections of the sealing strip (13) and the sealing groove (15) are both V-shaped.
4. The sealing structure of the observation port of the glass furnace according to claim 1, characterized in that: The upper baffle (11) and the lower baffle (14) are initially located inside the first sealing shell (7) and the second sealing shell (8), and the lengths of the upper baffle (11) and the lower baffle (14) are adapted to the inner dimensions of the observation window (4).
5. The sealing structure of the observation port of the glass furnace according to claim 1, characterized in that: The observation window (4) has an integrated observation panel at the end away from the mounting ear (16), and the high-temperature resistant glass (5) is embedded in the observation panel of the observation window (4).
6. The sealing structure of the observation port of the glass furnace according to claim 1, characterized in that: The end face of either the first sealing shell (7) or the second sealing shell (8) is provided with a circular through hole corresponding to the push rod of the electric cylinder (10).