Burner for forming large-specification quartz glass cylinder

Abstract

The utility model relates to a burner for forming a large-specification quartz glass cylinder, and belongs to the technical field of quartz glass cylinder production equipment. The burner comprises a lamp shell, a lamp holder is arranged in the lamp shell, an oxygen pipe is arranged on the lamp holder, hydrogen pipes are symmetrically arranged on the lamp shell, a main material distributing pipe is arranged above the lamp holder, and a plurality of branch material distributing pipes are connected to the end of the bottom of the main material distributing pipe. According to the burner, materials can be dispersed in hydrogen, the dispersed materials can be respectively heated, the materials can be ensured to be heated uniformly, the materials can fully absorb heat, the materials can be ensured to be fully fused and distributed uniformly, the bubbles in the fused quartz glass cylinder are ensured to be few and small, and the quality of the quartz glass cylinder is effectively improved. As the materials can quickly and fully absorb heat, the fuel consumption can be effectively reduced, resources are saved, and the production cost is reduced. The problems that an existing burner consumes much fuel due to material concentration, and the quality is easily affected due to uneven heating are solved.

Description

Technical Field

[0001] The utility model relates to a burner for forming a large-size quartz glass tube, belonging to the technical field of quartz glass tube production equipment. Background Art

[0002] Burners are essential devices in quartz glass production. The bubble level and melting speed of the resulting quartz glass tube reflect the burner's efficiency and also determine oxyhydrogen and hydrogen gas usage and energy consumption. Burners are core devices in quartz glass production. They utilize a mixture of oxyhydrogen and hydrogen to generate temperatures exceeding 2000°C at the focal point of the flame, melting the quartz glass sand. The higher the melting temperature, the better the quality of the resulting quartz glass tube. Appearance defects such as internal bubble size, density, and distribution are significantly reduced. Furthermore, higher temperatures improve the fluidity of the molten quartz glass, allowing bubbles to be more easily expelled during the melting process.

[0003] Patent application number CN221611376U discloses a quartz glass burner for producing silica soot. The burner comprises a quartz glass burner body for producing silica soot, comprising a cylindrical feed pipe, a first oxygen inlet pipe, a second oxygen inlet pipe, a first nitrogen inlet pipe, a second nitrogen inlet pipe, a first hydrogen inlet pipe, a third oxygen inlet pipe, and a second hydrogen inlet pipe, arranged in sequence. The gas ejected from each pipe forms independent airflow columns that work together to address the issues of conventional burners, such as high combustion temperatures, calorific value controlled entirely by hydrogen and oxygen, the tendency for silica soot to vitrify, and material accumulation at the burner tip.

[0004] The aforementioned burner is fed from the center of the quartz glass burner body, where the material is relatively concentrated. This presents the following problems: 1. The concentrated material cannot fully absorb heat, requiring more time to heat up and resulting in increased fuel consumption; 2. The concentrated material heats faster near the flame than the center, resulting in uneven heating and the formation of bubbles. Therefore, it was necessary to redesign a burner for large-scale quartz glass tube molding to address these issues. Summary of the Invention

[0005] The purpose of the utility model is to provide a burner for forming large-sized quartz glass tubes, which can effectively reduce fuel consumption and ensure uniform heating.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A burner for forming large-size quartz glass tubes includes a lamp housing and a lamp holder, characterized in that: a lamp holder is provided in the lamp housing, the top of the lamp holder extends above the lamp housing, an oxygen tube is provided on the lamp holder extending above the lamp housing, the oxygen tube is connected to the lamp holder, hydrogen tubes are symmetrically provided on the lamp housing on both sides of the lamp holder, the hydrogen tubes are connected to the lamp housing, a material distribution main pipe is provided above the lamp holder, the bottom end of the material distribution main pipe is connected to multiple material distribution branch pipes, and the material distribution branch pipes respectively extend into the annulus between the lamp housing and the lamp holder.

[0008] The material distribution branch pipes are arranged at intervals of 120 degrees.

[0009] Furthermore, a dispersion plate is provided on the lamp housing below the material distribution branch pipe.

[0010] The lamp housing is a conical hollow body with an open bottom.

[0011] The lamp holder is in the shape of an inverted funnel, and a blocking plate is horizontally arranged at the lower end of the lamp holder. Multiple wick tubes are evenly distributed on the blocking plate. One end of the wick tube is connected to the inner cavity of the lamp holder, and the other end of the wick tube extends downward in a constricted (contracted) shape.

[0012] The material distribution branch pipe extending into the annulus between the lamp housing and the lamp holder is flush with the blocking plate.

[0013] The lower end of the lamp housing and the lower end of the wick tube are arranged in a staggered manner.

[0014] The beneficial effects of the present invention are:

[0015] This burner for forming large-scale quartz glass tubes disperses the material in hydrogen, heating it separately. This ensures uniform heating and sufficient heat absorption, ensuring complete melting and uniform distribution of the material. This, in turn, reduces and minimizes bubbles in the resulting fused quartz glass tube, effectively improving its quality. Because the material quickly and fully absorbs heat, it effectively reduces fuel consumption, conserves resources, and lowers production costs. This solves the problems of existing burners, such as high fuel consumption caused by concentrated material and uneven heating that can affect quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a distribution diagram of the dispersion plate of the utility model.

[0018] In the figure: 1. lamp housing, 2. lamp holder, 3. oxygen tube, 4. hydrogen tube, 5. material distribution main pipe, 6. material distribution branch pipe, 7. dispersion plate, 8. blocking plate, 9. wick tube. DETAILED DESCRIPTION

[0019] This large-scale quartz glass tube forming burner includes a lamp housing 1 and a lamp holder 2. The lamp housing 1 houses the lamp holder 2, the top of which extends above the lamp housing 1. An oxygen tube 3 is provided on the lamp holder 2, extending above the lamp housing 1. The oxygen tube 3 communicates with the lamp holder 2, cooperating with the oxygen tube 3 to transport and disperse oxygen. Hydrogen tubes 4 are symmetrically provided on the lamp housing 1 on either side of the lamp holder 2. The hydrogen tubes 4 communicate with the lamp housing 1, cooperating with the hydrogen tubes 4 to transport and disperse hydrogen. Because the hydrogen is dispersed on the outside, it can contact oxygen internally and air externally, allowing for full hydrogen combustion. This reduces oxygen consumption and prevents explosions caused by excess hydrogen, improving safety. A main feed pipe 5 is provided above the lamp holder 2. Multiple branch feed pipes 6 are connected to the bottom end of the main feed pipe 5. The branch feed pipes 6 extend into the annulus between the lamp housing 1 and the lamp holder 2. The material distribution branch pipe 6 can disperse the material conveyed in the material distribution main pipe 5 into the annular space between the lamp housing 1 and the lamp holder 2, so that the material can be dispersed into the hydrogen. Due to the dispersion of the material, the material can fully and evenly absorb heat, thereby effectively reducing fuel consumption, saving resources, and lowering production costs. Moreover, since the material is evenly heated, the density of the molten quartz glass tube can be uniform throughout, thereby effectively reducing bubbles, thereby effectively improving the quality of the quartz glass tube.

[0020] The branch pipes 6 are arranged at intervals of 120 degrees, that is, three branch pipes 6 are evenly distributed in the annulus between the lamp housing 1 and the lamp holder 2 , and the material is evenly discharged into the annulus between the lamp holder 2 and the lamp housing 1 through the multiple branch pipes 6 .

[0021] As an improvement, a dispersion plate 7 is provided on the lamp housing 1 below the distribution branch pipe 6, so that when the distribution branch pipe 6 discharges the material downward, the material is further dispersed through the dispersion plate 7, so that the material is further dispersed into the annular space between the lamp holder 2 and the lamp housing 1, further promoting the dispersion of the material.

[0022] The lamp housing 1 is a conical hollow body with an open bottom. Its purpose is to concentrate the hydrogen gas toward the focal point where the lamp housing 1 extends, thereby concentrating the flame, thereby increasing the flame temperature and fully melting the material. At the same time, since the temperature is increased by concentrating the flame, fuel consumption can be effectively reduced, further saving resources and reducing production costs. At the same time, by increasing the flame temperature, the viscosity of the molten quartz glass liquid can be effectively reduced, facilitating the discharge of bubbles in the quartz glass liquid, and further improving the quality of the melted quartz glass tube.

[0023] The lamp holder 2 is shaped like an inverted funnel. A baffle 8 is horizontally positioned at the lower end of the lamp holder 2. Multiple wick tubes 9 are evenly distributed on the baffle 8, distributing oxygen downward through the wick tubes 9. One end of each wick tube 9 communicates with the inner cavity of the lamp holder 2, while the other end extends downward in a constricted (contracted) shape, allowing oxygen to converge toward the focal point along with hydrogen, thereby increasing the flame temperature.

[0024] The material distribution branch pipe 6 extending into the annulus between the lamp housing 1 and the lamp holder 2 is flush with the blocking plate 8 so as to further disperse the material through the flowing hydrogen.

[0025] The lower end of the lamp housing 1 and the lower end of the wick tube 9 are arranged in a staggered manner to increase the oxygen concentration at the ends, avoid hydrogen explosion, and improve safety.

[0026] When the burner for forming large-sized quartz glass tubes is in operation, oxygen and hydrogen enter from the oxygen tube 3 and hydrogen tube 4, respectively, and are mixed and burned outside the bottom of the burner. Oxygen enters the lamp holder 2 from the oxygen tube 3, is ejected from the wick tube 9 through the cavity of the lamp holder 2, and is mixed with the hydrogen ejected from the lamp housing 1 to form an oxyhydrogen flame, which melts the material at high temperature.

[0027] This burner for forming large-scale quartz glass tubes disperses the material in hydrogen, heating it separately. This ensures uniform heating and sufficient heat absorption, ensuring complete melting and uniform distribution of the material. This, in turn, reduces and minimizes bubbles in the resulting fused quartz glass tube, effectively improving its quality. Because the material quickly and fully absorbs heat, it effectively reduces fuel consumption, conserves resources, and lowers production costs. This solves the problems of existing burners, such as high fuel consumption caused by concentrated material and uneven heating that can affect quality.

Claims

1. A burner for forming a large-size quartz glass tube, comprising a lamp housing (1) and a lamp holder (2), wherein the lamp housing (1) is provided with the lamp holder (2), the top of the lamp holder (2) extending above the lamp housing (1), an oxygen tube (3) being provided on the lamp holder (2) extending above the lamp housing (1), the oxygen tube (3) being connected to the lamp holder (2), hydrogen tubes (4) being symmetrically provided on the lamp housing (1) on both sides of the lamp holder (2), the hydrogen tubes (4) being connected to the lamp housing (1), a material distribution main pipe (5) being provided above the lamp holder (2), a bottom end of the material distribution main pipe (5) being connected to a plurality of material distribution branch pipes (6), the material distribution branch pipes (6) respectively extending into the annulus between the lamp housing (1) and the lamp holder (2); characterized in that: A dispersion plate (7) is provided on the lamp housing (1) below the material distribution branch pipe (6).

2. A burner for forming a large-sized quartz glass tube according to claim 1, characterized in that: The distribution branch pipes (6) are arranged at intervals of 120 degrees.

3. A burner for forming a large-sized quartz glass tube according to claim 1, characterized in that: The lamp housing (1) is a conical hollow body with an open bottom.

4. A burner for forming a large-sized quartz glass tube according to claim 1, characterized in that: The lamp holder (2) is in the shape of an inverted funnel, and a blocking plate (8) is horizontally arranged at the lower end of the lamp holder (2). A plurality of wick tubes (9) are evenly distributed on the blocking plate (8), one end of the wick tube (9) is connected to the inner cavity of the lamp holder (2), and the other end of the wick tube (9) extends downward in a constricted shape.

5. A burner for forming a large-sized quartz glass tube according to claim 4, characterized in that: The material distribution branch pipe (6) extending into the annulus of the lamp housing (1) and the lamp holder (2) is flush with the blocking plate (8).

6. A burner for forming a large-sized quartz glass tube according to claim 5, characterized in that: The lower end of the lamp housing (1) and the lower end of the wick tube (9) are arranged in a staggered manner.

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