Integrated water-cooling fire ring device for fusion welding of high-purity silicon dioxide tube

By designing a water-cooled fire ring device, the problem of insufficient heat dissipation of the fire ring was solved, and the stability and safety of high-purity silica tube welding were achieved, thereby improving production efficiency and quality.

CN224062671UActive Publication Date: 2026-03-31SHAANXI INDIUM JIE SEMICON CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing fire ring technology suffers from insufficient heat dissipation during the welding of high-purity silica tubes, leading to deformation of the fire ring structure, degradation of material properties, impact on production continuity and stability, and posing safety hazards.

Method used

An integrated water-cooled fire ring device was designed. The cooling water circulating in the water channel outer sealing plate and the gas channel outer sealing plate absorbs the heat of the water ring substrate layer. Combined with the combustion gas, the quartz tube is heated and welded to ensure that the water ring substrate layer operates within a safe temperature range.

Benefits of technology

It effectively reduces the temperature of the water ring substrate layer, prevents gas leakage and explosion, improves welding quality and production efficiency, and ensures production continuity and safety.

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Abstract

The utility model discloses an integrated water-cooling fire ring device for fusion welding of a high-purity silicon dioxide pipe, which comprises a side disc, a water channel outer sealing welding plate is fixed on the edge of the side disc, an air channel outer sealing welding plate and a water ring base body layer are fixed on the outer wall of the side disc, and the air channel outer sealing welding plate and the water channel outer sealing welding plate are concentric. The diameter of the water ring base body layer is smaller than that of the air channel outer sealing welding plate, the same fixing ring is fixed to the water channel outer sealing welding plate, the air channel outer sealing welding plate and the water ring base body layer, a plurality of flame nozzles are installed on the inner wall of the water ring base body layer at equal intervals, and a water inlet and a water outlet are formed in the outer wall of the water channel outer sealing welding plate. A fuel gas inlet is formed in the outer wall of the gas channel outer sealing welding plate. According to the utility model, the cooling of the water ring base body layer is realized, the water ring base body layer is ensured to work stably in a safe temperature range, and the temperature of the water ring base body layer is prevented from being too high, so that the safety of gas in the water ring base body layer is protected, and the safety problems of gas leakage, explosion and the like caused by high temperature are prevented.
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Description

Technical Field

[0001] This utility model relates to the field of fusion welding technology, and in particular to an integrated water-cooled fire ring device for fusion welding of high-purity silica tubes. Background Technology

[0002] Amidst the rapid global advancements in science and technology, numerous high-end manufacturing sectors, including semiconductors, optical communications, and aerospace, are undergoing unprecedented transformations and breakthroughs. As the core foundation of modern electronic information technology, the semiconductor industry faces increasingly stringent demands for high-purity, high-precision semiconductor materials as chip manufacturing processes continue to advance to smaller nanometer scales. High-purity silicon dioxide (SiO2) transistors, with their excellent chemical stability, high-temperature resistance, and low dielectric constant, have become core components in critical processes such as etching and diffusion during semiconductor chip manufacturing. Their quality directly impacts chip performance and yield.

[0003] High-purity silica tubes, as a crucial component of optical fiber preforms, determine key performance indicators such as fiber loss and strength through their welding quality, thus impacting the transmission efficiency and stability of the entire optical communication network. Furthermore, in the aerospace field, high-purity silica tubes are widely used in high-temperature sensors and thermal insulation components, their performance directly affecting the reliability and safety of aerospace vehicles in extreme environments. The rapid development of these industries is driving continuous innovation in the production technology of high-purity silica tubes, especially the welding process. As a critical step in determining the quality of high-purity silica tubes, breakthroughs in this technology are urgently needed to meet the ever-increasing demand for high-quality products.

[0004] In the fusion welding process of high-purity silica tubes, the flame ring is the core equipment for achieving the welding process. It heats the silica tubes at high temperatures by providing stable combustion gases, causing them to melt and fuse. However, current flame ring technology has many problems, which seriously restrict the welding quality and production efficiency. On the one hand, some flame rings use a simple natural heat dissipation method. Under continuous high-temperature welding operations, the flame ring's own temperature accumulates continuously and cannot be dissipated in time, leading to deformation of the flame ring structure and a decline in material properties. Frequent replacement of the flame ring not only increases production costs but also affects the continuity and stability of production. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an integrated water-cooled fire ring device for welding high-purity silica tubes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An integrated water-cooled flame ring device for welding high-purity silica tubes includes a side plate. A water channel outer sealing plate is fixed to the edge of the side plate. An air channel outer sealing plate and a water ring substrate layer, concentric with the water channel outer sealing plate, are fixed to the outer wall of the side plate. The diameter of the water ring substrate layer is smaller than the diameter of the air channel outer sealing plate. The water channel outer sealing plate, the air channel outer sealing plate, and the water ring substrate layer are fixed with the same fixing ring. A plurality of flame nozzles are equidistantly installed on the inner wall of the water ring substrate layer. The outer wall of the water channel outer sealing plate has a water inlet and a water outlet. The outer wall of the air channel outer sealing plate has a fuel gas inlet.

[0008] As a further embodiment of this utility model, the water inlet is fixed with a cooling water inlet.

[0009] As a further embodiment of this utility model, the water outlet is fixed with a cooling water outlet.

[0010] As a further embodiment of this utility model, the outer walls of the gas channel outer sealing plate and the water channel outer sealing plate are provided with interconnected mounting holes, and the gas inlet is fixedly connected to the two mounting holes.

[0011] As a further embodiment of this utility model, the inner walls of the water channel outer sealing plate and the gas channel outer sealing plate are fixed with the same water channel baffle. The water channel baffle is located between the cooling water inlet and the cooling water outlet, and the two sides of the gas channel outer sealing plate are respectively fixed with the side plate and the fixing ring. Under the guidance of the water channel baffle, the water flows in a specific direction and finally flows out from the cooling water outlet to cool the water ring substrate layer itself. Its main function is to remove the heat generated by the welding of the water ring substrate layer, avoid the water ring substrate layer temperature from being too high, thereby protecting the safety of the gas in the water ring substrate layer and preventing safety problems such as gas leakage and explosion caused by high temperature.

[0012] As a further embodiment of this utility model, the outer wall of the water ring substrate layer is provided with a plurality of flame nozzle air passages at equal intervals, and an installation sleeve is fixed inside the flame nozzle air passages, and the flame nozzle is connected and fixed to the installation sleeve.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention relates to a process for welding high-purity silica tubes. During the welding process, combustion gas is ejected and burned by the gas inlet and the flame nozzle, heating and welding the quartz tube to be welded. At the same time, the cooling water inlet is connected to the cooling water, which circulates in the outer sealing plate of the water channel and the outer sealing plate of the gas channel, absorbing the heat of the water ring substrate layer and cooling the water ring substrate layer to ensure that the water ring substrate layer can work stably within a safe temperature range.

[0015] This utility model: Under the guidance of the water channel baffle, the water flows in a specific direction and finally flows out from the cooling water outlet, cooling the water ring substrate layer itself. Its main function is to remove the heat generated by the welding of the water ring substrate layer, avoid the water ring substrate layer temperature from being too high, thereby protecting the safety of the gas in the water ring substrate layer and preventing safety problems such as gas leakage and explosion caused by high temperature. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an integrated water-cooled fire ring device for high-purity silica tube welding proposed in this utility model.

[0017] Figure 2 This is a cross-sectional three-dimensional structural diagram of an integrated water-cooled fire ring device for high-purity silica tube welding proposed in this utility model.

[0018] Figure 3 This invention proposes an integrated water-cooled fire ring device for welding high-purity silica tubes. Figure 2 Enlarged 3D structural diagram at point A.

[0019] In the diagram: 1. Side plate; 2. Fixing ring; 3. Water channel outer sealing plate; 4. Gas channel outer sealing plate; 5. Water channel baffle; 6. Cooling water inlet; 7. Cooling water outlet; 8. Water ring substrate layer; 9. Burner gas inlet; 10. Mounting sleeve; 11. Flame nozzle; 12. Mounting hole; 13. Gas inlet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Reference Figure 1-3 An integrated water-cooled flame ring device for welding high-purity silica tubes includes a side plate 1. A water channel outer sealing plate 3 is fixed to the edge of the side plate 1. An air channel outer sealing plate 4 and a water ring substrate layer 8, which are concentric with the water channel outer sealing plate 3, are fixed to the outer wall of the side plate 1. The diameter of the water ring substrate layer 8 is smaller than the diameter of the air channel outer sealing plate 4. The water channel outer sealing plate 3, the air channel outer sealing plate 4, and the water ring substrate layer 8 are fixed with the same fixing ring 2. Several flame nozzles 11 are equidistantly installed on the inner wall of the water ring substrate layer 8. The outer wall of the water channel outer sealing plate 3 has a water inlet and a water outlet. The outer wall of the air channel outer sealing plate 4 has a gas inlet 13.

[0023] In this embodiment, a cooling water inlet 6 is fixed at the water inlet.

[0024] In this embodiment, a cooling water outlet 7 is fixed at the water outlet.

[0025] In this embodiment, the outer wall of the gas channel outer sealing plate 4 and the outer wall of the water channel outer sealing plate 3 are provided with interconnected mounting holes 12, and the gas inlet 13 is fixedly connected to the two mounting holes 12.

[0026] In this embodiment, the inner walls of the water channel outer sealing plate 3 and the gas channel outer sealing plate 4 are fixed with the same water channel baffle 5. The water channel baffle 5 is located between the cooling water inlet 6 and the cooling water outlet 7. The two sides of the gas channel outer sealing plate 4 are fixed with the side plate 1 and the fixing ring 2 respectively. Under the guidance of the water channel baffle 5, the water flows in a specific direction and finally flows out from the cooling water outlet 7 to cool the water ring substrate layer 8 itself. Its main function is to remove the heat generated by the welding of the water ring substrate layer 8, avoid the water ring substrate layer 8 from getting too hot, thereby protecting the safety of the gas in the water ring substrate layer 8 and preventing safety problems such as gas leakage and explosion caused by high temperature.

[0027] In this embodiment, a plurality of flame nozzle air passages 9 are equidistantly provided on the outer wall of the water ring substrate layer 8, and an installation sleeve 10 is fixed inside the flame nozzle air passage 9. The flame nozzle 11 is connected and fixed to the installation sleeve 10.

[0028] Working principle: Due to the use of a side plate 1, a fixing ring 2, a water channel outer sealing plate 3, an air channel outer sealing plate 4, a water ring substrate layer 8, and a flame nozzle 11, the above-mentioned structural design allows the combustion gas to be ejected and burned under the action of the gas inlet 13 and the flame nozzle 11 during the high-purity silica tube welding process, heating and welding the quartz tube to be welded. At the same time, the cooling water inlet 6 is connected to the cooling water, which circulates in the water channel outer sealing plate 3 and the air channel outer sealing plate 4, absorbing the heat of the water ring substrate layer 8, thereby cooling the water ring substrate layer 8 and ensuring that the water ring substrate layer 8 can work stably within a safe temperature range.

[0029] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An integrated water cooled collar device for high purity silica tube fusion welding comprising a side tray (1), characterized in that, The edge of the side disc (1) is fixed with a water channel outer sealing plate (3), the outer wall of the side disc (1) is fixed with a gas channel outer sealing plate (4) and a water ring base layer (8) concentric with the water channel outer sealing plate (3), the diameter of the water ring base layer (8) is smaller than that of the gas channel outer sealing plate (4), the water channel outer sealing plate (3), the gas channel outer sealing plate (4) and the water ring base layer (8) are fixed with the same fixing ring (2), the inner wall of the water ring base layer (8) is equidistantly installed with a plurality of flame nozzles (11), the outer wall of the water channel outer sealing plate (3) is provided with a water inlet and a water outlet, the outer wall of the gas channel outer sealing plate (4) is installed with a gas inlet (13), the inner walls of the water channel outer sealing plate (3) and the gas channel outer sealing plate (4) are fixed with the same water channel partition plate (5), the water channel partition plate (5) is located between the cooling water inlet (6) and the cooling water outlet (7), and the two sides of the gas channel outer sealing plate (4) are fixed with the side disc (1) and the fixing ring (2) respectively.

2. An integrated water-cooled flame ring apparatus for fusion welding of high purity silica tubes according to claim 1, wherein, The water inlet is fixed with the cooling water inlet (6).

3. An integrated water-cooled collar assembly for fusion welding of high purity silica tubes according to claim 2, wherein, The water outlet is fixed with the cooling water outlet (7).

4. An integrated water-cooled collar apparatus for fusion welding of high purity silica tubes as claimed in claim 1, wherein, The outer wall of the gas channel outer sealing plate (4) and the outer wall of the water channel outer sealing plate (3) are provided with mounting holes (12) in communication with each other, and the gas inlet (13) is fixedly communicated with the two mounting holes (12).

5. An integrated water-cooled collar apparatus for fusion welding of high purity silica tubes as claimed in claim 1, wherein, The outer wall of the water ring base layer (8) is equidistantly provided with a plurality of flame nozzle gas channel openings (9), the flame nozzle gas channel openings (9) are fixedly provided with mounting sleeves (10), and the flame nozzles (11) are fixedly connected with the mounting sleeves (10).