阅读说明：本技术 熔窑燃枪 (Burning gun for melting furnace ) 是由 汪路遥 赵明 葛章驰 刘强 江可 孙绪 于 2019-09-29 设计创作，主要内容包括：本发明的实施例提供了一种熔窑燃枪,涉及TFT液晶基板玻璃技术领域。该熔窑燃枪包括枪体和开设于枪体的第一氧气通道、天然气通道及第二氧气通道,第一氧气通道和第二氧气通道分别位于天然气通道的两侧。通过调节第一氧气通道、天然气通道及第二氧气通道的气流之间的压力及流量比例,以使所形成的火焰形状可以在人为干预下发生改变,且这种改变是可控的。池炉内火焰粗细长短都可进行相应调整,较容易达到所需的工艺条件。结构简单,使用方便,实用性强。(The embodiment of the invention provides a melting furnace burning gun, and relates to the technical field of TFT (thin film transistor) liquid crystal substrate glass. This melting furnace fires rifle includes the rifle body and sets up first oxygen passageway, natural gas passageway and the second oxygen passageway in the rifle body, and first oxygen passageway and second oxygen passageway are located the both sides of natural gas passageway respectively. The pressure and flow ratio among the gas flows of the first oxygen channel, the natural gas channel and the second oxygen channel are adjusted, so that the shape of the formed flame can be changed under the manual intervention, and the change can be controlled. The size of the flame in the tank furnace can be correspondingly adjusted, and the required process conditions can be easily achieved. Simple structure, convenient to use, the practicality is strong.)

1. The melting furnace combustion gun is characterized by comprising a gun body, a first oxygen channel, a natural gas channel and a second oxygen channel, wherein the first oxygen channel, the natural gas channel and the second oxygen channel are arranged on the gun body, and the first oxygen channel and the second oxygen channel are respectively positioned on two sides of the natural gas channel.

2. The melting furnace burning gun according to claim 1, wherein the first oxygen passage comprises a plurality of first branches arranged in parallel, gas inlets of the first branches are communicated with each other, and the first branches are arranged around the outer side of the natural gas passage at intervals;

the natural gas channel comprises a plurality of second branches arranged in parallel, air inlets of the second branches are communicated with each other, and the second branches are arranged at intervals around the outer side of the second oxygen channel.

3. The melting furnace burning gun according to claim 2, wherein the longitudinal sections of the first branch and the second branch are circular holes, the centers of the longitudinal sections of all the first branches are located on the same circle and are first circles, the centers of the longitudinal sections of all the second branches are located on the same circle and are second circles, and the first circle and the second circle are concentric.

4. The melting furnace burning gun according to claim 2, wherein the number of the second oxygen passages is one, the longitudinal sections of the second oxygen passages are circular holes, the centers of the longitudinal sections of the second branches are all located on the same circle and are second circles, and the second circles are concentric with the longitudinal sections of the second oxygen passages.

5. The melting furnace burning gun according to claim 2, wherein the first branches have the same cross-sectional size and are uniformly spaced around the outside of the natural gas channel;

the cross-sectional dimensions of the second branches are the same, and the second branches are uniformly arranged at the outer side of the second oxygen channel in an enclosing mode at intervals.

6. The melting furnace burning torch according to claim 1, wherein the first oxygen passage includes a branch section and a gas exit section connected in series, the branch section extending linearly in a length direction of the torch body, and the gas exit section extending spirally in the length direction of the torch body.

7. The melting furnace lance defined in any one of claims 1 to 6 wherein the total longitudinal cross-sectional area of the natural gas passage is less than half the sum of the total longitudinal cross-sectional area of the first oxygen passage and the total longitudinal cross-sectional area of the second oxygen passage.

8. The melting furnace lance of claim 1, wherein the inlet of the first oxygen channel and the inlet of the second oxygen channel are in communication and form a total gas flow section provided with a first valve for controlling oxygen flow and pressure.

9. The melting furnace lance of claim 1, wherein the first oxygen passage is provided with a second valve for controlling oxygen flow and pressure, the natural gas passage is provided with a third valve for controlling natural gas flow and pressure, and the second oxygen passage is provided with a fourth valve for controlling oxygen flow and pressure.

10. The melting furnace lance of claim 1, wherein the lance body comprises a body section and a lance tip section, the body section having an outer sidewall of the same size as an outer sidewall of the lance tip section;

the gun head section further comprises an outer end face, and the outer side wall of the gun head section is perpendicular to the outer end face.

Technical Field

The invention relates to the technical field of TFT (thin film transistor) liquid crystal substrate glass, in particular to a melting furnace burning gun.

Background

Tft (thin Film transistor) is an abbreviation of thin Film transistor. It means that each liquid crystal pixel on the liquid crystal display is driven by the thin film transistor integrated behind it.

In the heating mode of the TFT substrate glass melting furnace, oxygen is often used for auxiliary heating in order to improve the melting quality, and along with the improvement of the oxygen purification and filtration technology, oxygen is gradually the main means for heating the liquid crystal glass furnace.

At present, the flame shape of the burning gun of the TFT substrate glass melting furnace is not controlled.

Disclosure of Invention

Objects of the present invention include, for example, providing a melter burner that can control the flame shape of a TFT substrate glass melter burner, improving the existing problem of uncontrolled flame shape.

Embodiments of the invention may be implemented as follows:

in a first aspect, an embodiment of the present invention provides a melting furnace burning gun, including a gun body, and a first oxygen channel, a natural gas channel, and a second oxygen channel that are opened in the gun body, where the first oxygen channel and the second oxygen channel are located on two sides of the natural gas channel, respectively.

In an alternative embodiment, the first oxygen channel comprises a plurality of first branches arranged in parallel, the gas inlets of the first branches are communicated with each other, and the first branches are arranged around the outer side of the natural gas channel at intervals;

the natural gas channel comprises a plurality of second branches arranged in parallel, air inlets of the second branches are communicated with each other, and the second branches are arranged at intervals around the outer side of the second oxygen channel.

In an optional embodiment, the longitudinal cross section of the first branch and the longitudinal cross section of the second branch are both circular holes, all the longitudinal cross section circle centers of the first branch are located on the same circle and are first circles, all the longitudinal cross section circle centers of the second branch are located on the same circle and are second circles, and the first circles and the second circles are concentric.

In an optional embodiment, the number of the second oxygen channels is one, the longitudinal sections of the second oxygen channels are round holes, the centers of the longitudinal sections of the second branches are all located on the same circle and are second circles, and the second circles are concentric with the longitudinal sections of the second oxygen channels.

In an alternative embodiment, the first branches have the same cross-sectional size and are uniformly spaced around the outer side of the natural gas channel;

the cross-sectional dimensions of the second branches are the same, and the second branches are uniformly arranged at the outer side of the second oxygen channel in an enclosing mode at intervals.

In an alternative embodiment, the first oxygen channel includes a branch section and a gas outlet section connected in sequence, the branch section extends linearly along the length direction of the gun body, and the gas outlet section extends spirally along the length direction of the gun body.

In an alternative embodiment, the total longitudinal cross-sectional area of the natural gas channel is less than half of the sum of the total longitudinal cross-sectional area of the first oxygen channel and the total longitudinal cross-sectional area of the second oxygen channel.

In an alternative embodiment, the inlet of the first oxygen channel and the inlet of the second oxygen channel are in communication and form a total gas flow section provided with a first valve for controlling the oxygen flow and pressure.

In an alternative embodiment, the first oxygen channel is provided with a second valve for controlling oxygen flow and pressure, the natural gas channel is provided with a third valve for controlling natural gas flow and pressure, and the second oxygen channel is provided with a fourth valve for controlling oxygen flow and pressure.

In an alternative embodiment, the gun body comprises a body section and a gun head section, wherein the size of the outer side wall of the body section is the same as that of the outer side wall of the gun head section;

the gun head section further comprises an outer end face, and the outer side wall of the gun head section is perpendicular to the outer end face.

The beneficial effects of the embodiment of the invention at least comprise, for example:

a first oxygen channel, a natural gas channel and a second oxygen channel are sequentially arranged on the gun body, so that oxygen and natural gas can separately circulate, and the first oxygen channel and the second oxygen channel are respectively positioned on two sides of the natural gas channel. The oxygen circulating through the second oxygen channel can enable the natural gas circulating through the natural gas channel to expand outwards, the oxygen circulating through the first oxygen channel can enable the natural gas circulating through the natural gas channel to compress inwards, and the shape of the formed flame can be changed under the manual intervention by adjusting the pressure and flow ratio among the air flows in the three channels, and the change is controllable, so that the problem that the shape of the flame of the burning gun of the TFT substrate glass melting furnace is not controlled is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a cross-sectional view of a melting furnace burner provided in an embodiment of the present application;

FIG. 2 is a schematic end view of a melting furnace lance provided in an embodiment of the present application;

fig. 3 is an enlarged view of a point a in fig. 1.

Icon: 100-burning gun of melting furnace; 10-a first oxygen channel; 11-a first branch; 112-a branch section; 115-air outlet section; 13-natural gas channel; 14-a second branch; 16-a second oxygen channel; 17-a gun body; 172-body section; 175-gun head section.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.