A glass solidification furnace discharge apparatus

Abstract

The application provides a glass solidification furnace discharging device, and relates to the field of glass solidification furnaces.The glass solidification furnace discharging device comprises a glass furnace body, a discharging pipe, a first section, a second section and a third section of the discharging pipe from top to bottom, and a feeding port of the first section of the discharging pipe is fixedly connected with a lower end of the glass furnace body;the inner diameters of the first section, the second section and the third section of the discharging pipe are sequentially reduced, and the cross-sectional areas of the first section, the second section and the third section of the discharging pipe are equal;an insulating layer is installed on the lower end of the glass furnace body and is sleeved on the first section of the discharging pipe;and a heater is installed on the second section and the third section of the discharging pipe.The scheme of the application realizes the temperature equality of each part of the glass solidification furnace discharging pipe during use, and improves the service life of the glass solidification furnace discharging pipe.

Description

Technical Field

[0001] This invention relates to the field of glass curing, and in particular to a discharge device for a glass curing furnace. Background Technology

[0002] During the use of glass curing furnaces, the upper part of the discharge pipe is located within the insulation layer and cannot be directly heated. Therefore, indirect heating of the upper part of the discharge pipe is required. However, during the heating process, the existing discharge pipe is prone to localized overheating, which can damage the discharge pipe and shorten its service life. Summary of the Invention

[0003] This invention provides a discharge device for a glass curing furnace. It solves the problem that the discharge pipe of a traditional glass curing furnace is prone to localized overheating during the heating process, leading to damage to the discharge pipe.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0005] This invention provides a discharge device for a glass curing furnace, comprising:

[0006] Glass melting furnace body;

[0007] The discharge pipe consists of a first section, a second section, and a third section from top to bottom, with the inlet of the first section of the discharge pipe fixedly connected to the lower end of the glass melting furnace body; the inner diameters of the first, second, and third sections of the discharge pipe decrease sequentially, and the cross-sectional areas of the first, second, and third sections of the discharge pipe are all equal;

[0008] A heat insulation layer is installed at the lower end of the glass melting furnace body and is sleeved on the first section of the discharge pipe;

[0009] A heater is installed in the second and third sections of the discharge pipe.

[0010] Optionally, the outer diameter of the second section of the discharge pipe is smaller than the outer diameter of the first section of the discharge pipe, but larger than the outer diameter of the third section of the discharge pipe.

[0011] Optionally, the first end of the discharge pipe is fixedly connected to the lower end of the glass melting furnace body via a flange.

[0012] Optionally, the discharge device of the glass curing furnace further includes a controller electrically connected to the heater.

[0013] Optionally, the discharge device of the glass curing furnace further includes:

[0014] A collection tank is located below the outlet of the third section of the discharge pipe, and the inlet of the collection tank is located directly below the outlet of the third section of the discharge pipe.

[0015] Optionally, a transition curve segment is provided at the connection between the first and second sections of the discharge pipe, and at the connection between the second and third sections of the discharge pipe.

[0016] Optionally, the transition curve segment is one of the following: a tri-curvature circular arc curve, a circular arc transformation curve, a hyper-curvature circular arc curve, a cubic spline curve, and a streamlined transition curve.

[0017] Optionally, the length ratio of the first, second, and third sections of the discharge pipe is 1:(3.5-4.2):(0.5-1.5).

[0018] Optionally, the material of the discharge pipe is a nickel-based high-temperature alloy.

[0019] Optionally, the inner diameter ratio of the first, second, and third sections of the discharge pipe is (1.4-1.6):(1.1-1.3):1.

[0020] The above-described solution of the present invention has at least the following beneficial effects:

[0021] The discharge device for a glass curing furnace according to the present invention includes: a glass furnace body, a discharge pipe, an insulation layer, and a heater; the discharge pipe is divided into a first section, a second section, and a third section from top to bottom, and the inlet of the first section of the discharge pipe is fixedly connected to the lower end of the glass furnace body; the inner diameters of the first, second, and third sections of the discharge pipe decrease sequentially, and the cross-sectional areas of the first, second, and third sections of the discharge pipe are all equal; the insulation layer is installed at the lower end of the glass furnace body and sleeved on the first section of the discharge pipe; the heater is installed on the second and third sections of the discharge pipe. The discharge device for the glass curing furnace achieves uniform temperature across all parts of the discharge pipe during use, thereby improving the service life of the discharge pipe. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the discharge device of the glass curing furnace of the present invention;

[0023] Figure 2 This is a cross-sectional view of the discharge pipe and flange of the discharge device of the glass curing furnace of the present invention;

[0024] Figure 3This is a partial enlarged view of the discharge pipe of the discharge device of the glass curing furnace of the present invention at point A.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Glass furnace body; 11. Insulation layer; 2. Discharge pipe; 21. Flange; 3. Collection tank; 4. Heater; 41. Controller. Detailed Implementation

[0027] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0028] like Figures 1 to 2 As shown, an embodiment of the present invention provides a discharge device for a glass curing furnace, comprising:

[0029] Glass melting furnace body 1;

[0030] The discharge pipe 2 has a first section, a second section, and a third section from top to bottom. The inlet of the first section of the discharge pipe 2 is fixedly connected to the lower end of the glass melting furnace body 1. The inner diameters of the first, second, and third sections of the discharge pipe 2 decrease sequentially, and the cross-sectional areas of the first, second, and third sections of the discharge pipe 2 are all equal.

[0031] The insulation layer 11 is installed at the lower end of the glass furnace body 1 and is sleeved on the first section of the discharge pipe 2.

[0032] Heater 4 is installed in the second section and the third section of the discharge pipe 2.

[0033] The outer diameter of the second section of the discharge pipe 2 is smaller than the outer diameter of the first section of the discharge pipe 2, and larger than the outer diameter of the third section of the discharge pipe 2.

[0034] The ratio of the inner diameters of the first, second, and third sections of the discharge pipe 2 is (1.4-1.6):(1.1-1.3):1. In a preferred embodiment, the inner diameter of the first section of the discharge pipe 2 is 30mm, the inner diameter of the second section is 24mm, and the inner diameter of the third section is 20mm.

[0035] In this embodiment, the inner diameter of the discharge pipe 2 is designed to decrease sequentially and remain a fixed value due to the limitations of the discharge pipe flow channel structure. First, the cross-sectional area S of the discharge pipe 2 can be determined according to requirements. Then, based on the principle that the cross-sectional areas of the first, second, and third sections of the discharge pipe 2 are all equal, the cross-sectional area is calculated using the formula: S = π(D 2 -d 2 The outer diameter D of each segment of the discharge pipe 2 is calculated using 4 / 4.

[0036] In this embodiment, by designing that the cross-sectional area of ​​each segment is equal, the heat capacity absorbed by each segment of the discharge pipe 2 is equal when the heater 4 heats the discharge pipe 2. This ensures that the temperature rise of each segment of the discharge pipe 2 is consistent and the overall temperature is uniform, thereby preventing the discharge pipe 2 from being damaged due to local overheating caused by different temperature rises in each segment, and extending the service life of the discharge pipe 2.

[0037] In an optional embodiment of the present invention, the first end of the discharge pipe 2 is fixedly connected to the lower end of the glass furnace body 1 via a flange 21.

[0038] In this embodiment, the flange 21 is sleeved on the first end of the discharge pipe 2 and disposed inside the glass furnace body 1, so that the inlet of the first end of the discharge pipe 2 is connected to the glass furnace body 1, and the material in the glass furnace body 1 enters the discharge pipe 2 through the inlet of the first end of the discharge pipe 2.

[0039] In an optional embodiment of the present invention, the discharge device of the glass curing furnace further includes: a controller 41 electrically connected to the heater 4, the controller 41 being used to control the heating power of the heater 4 to realize closed-loop heating control of the discharge pipe 2.

[0040] In an optional embodiment of the present invention, the discharge device of the glass curing furnace further includes:

[0041] The material collection tank 3 is located below the outlet of the third section of the discharge pipe 2, and the inlet of the material collection tank 3 is located directly below the outlet of the third section of the discharge pipe 2.

[0042] In an optional embodiment of the present invention, a transition curve segment is provided at the connection between the first and second sections of the discharge pipe 2 and between the second and third sections of the discharge pipe 2.

[0043] The transition curve segment is one of the following: a tri-curvature circular arc curve, a circular arc transformation curve, a hyper-curvature circular arc curve, a cubic spline curve, and a streamlined transition curve.

[0044] In this embodiment, the design of the transition curve segment can effectively reduce stress concentration at various connection points. In a preferred embodiment, a hyperbolic circular arc curve can be selected as the transition curve segment, such as... Figure 3 As shown, Figure 3 In the diagram, r is the radius of the first arc, R is the radius of the second arc, and r is tangent to R; where r = (D1-D2) × 0.175, R = (D1-D2) × 4.2; where D1 is the maximum outer diameter at the junction of the two segments, and D2 is the minimum outer diameter at the junction of the two segments.

[0045] In an optional embodiment of the present invention, the length ratio of the first section, the second section, and the third section of the discharge pipe 2 is 1:(3.5-4.2):(0.5-1.5). In a preferred embodiment, the length of the first section of the discharge pipe 2 is 71mm; the length of the second section is 287mm; and the length of the third section is 100mm.

[0046] In an optional embodiment of the present invention, the material of the discharge pipe is a nickel-based high-temperature alloy.

[0047] In this embodiment, as Figure 2 As shown, Figure 2 In this context, L represents the total length of the discharge pipe 2; the total length of the discharge pipe 2 must satisfy L < [σ] / ρg; where L is the total length of the discharge pipe 2, [σ] is the allowable stress of the discharge pipe 2 under high-temperature operating conditions, ρ is the density of the discharge pipe 2, and g is the gravitational acceleration, taken as 9.8 m / s². 2 ;

[0048] In a preferred embodiment, the material of the discharge pipe 2 is a nickel-based high-temperature alloy, such as Inconel 690. The first section of the discharge pipe 2 has a length of 71 mm, the second section has a length of 287 mm, and the third section has a length of 100 mm, for a total length of 458 mm. When the discharge pipe is in operation (at high temperature), the maximum stress on the discharge pipe 2 due to gravity is located in the first section, as shown by the formula σ. max =ρgL(where, σ max Let L be the maximum stress experienced by the discharge pipe 2 during operation, L be the total length of the discharge pipe 2, ρ be the density of the discharge pipe 2, and g be the gravitational acceleration, taken as 9.8 m / s². 2Calculations show that the maximum stress on the first section is about 0.037% of the allowable stress of the discharge pipe 2. The maximum stress on the section is very small, so the influence of gravity on the discharge pipe can be ignored. Therefore, when the material of the discharge pipe 2 is Inconel 690, the length of the first section of the discharge pipe 2 is 71mm, the length of the second section is 287mm, the length of the third section is 100mm, and the total length is 458mm, the discharge pipe can achieve the characteristic that the strength of each part is equal.

[0049] The discharge device of the glass curing furnace described in this invention achieves the characteristics of equal heat capacity and equal strength in each section of the discharge pipe of the glass curing furnace, ensuring the uniformity of the overall temperature of the discharge pipe during the heating process, and improving the safety and service life of the discharge pipe of the glass curing furnace.

[0050] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A discharge device for a glass curing furnace, characterized in that, include: Glass furnace body (1); The discharge pipe (2) consists of a first section, a second section, and a third section from top to bottom. The inlet of the first section of the discharge pipe (2) is fixedly connected to the lower end of the glass melting furnace body (1). The inner diameters of the first, second, and third sections of the discharge pipe (2) decrease sequentially, and the cross-sectional areas of the first, second, and third sections of the discharge pipe (2) are all equal. The insulation layer (11) is installed at the lower end of the glass furnace body (1) and is sleeved on the first section of the discharge pipe (2); Heater (4), the heater (4) is installed in the second section and the third section of the discharge pipe (2); A transition curve section is provided at the connection between the first and second sections of the discharge pipe (2) and between the second and third sections of the discharge pipe (2); The transition curve segment is one of the following: a tri-curvature circular arc curve, a circular arc degeneration curve, a hyper-curvature circular arc curve, a cubic spline curve, and a streamlined transition curve. The length ratio of the first, second, and third sections of the discharge pipe (2) is 1:(3.5-4.2):(0.5-1.5); specifically, the length of the first section of the discharge pipe (2) is 71mm; the length of the second section is 287mm; and the length of the third section is 100mm. The ratio of the inner diameters of the first, second, and third sections of the discharge pipe (2) is (1.4-1.6):(1.1-1.3):1; specifically, the inner diameter of the first section of the discharge pipe (2) is 30mm, the inner diameter of the second section is 24mm, and the inner diameter of the third section is 20mm.

2. The discharge device of the glass curing furnace according to claim 1, characterized in that, The outer diameter of the second section of the discharge pipe (2) is smaller than the outer diameter of the first section of the discharge pipe (2) and larger than the outer diameter of the third section of the discharge pipe (2).

3. The discharge device of the glass curing furnace according to claim 1, characterized in that, The first end of the discharge pipe (2) is fixedly connected to the lower end of the glass furnace body (1) via a flange (21).

4. The discharge device of the glass curing furnace according to claim 1, characterized in that, Also includes: A controller (41) electrically connected to the heater (4).

5. The discharge device of the glass curing furnace according to claim 1, characterized in that, Also includes: The material collection tank (3) is located below the outlet of the third section of the discharge pipe (2), and the inlet of the material collection tank (3) is located directly below the outlet of the third section of the discharge pipe (2).

6. The discharge device of the glass curing furnace according to claim 1, characterized in that, The material of the discharge pipe (2) is a nickel-based high-temperature alloy.

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