CN116835870A - A forced convection device to increase the production capacity of double silver LOW-E glass - Google Patents

Abstract

The invention provides a forced convection device for improving the production capacity of double silver LOW-E glass, and belongs to the technical field of glass production equipment. The forced convection device for improving the production capacity of double silver LOW-E glass includes a first convection component and a second convection component connected to a high-temperature fan. The first convection component and a plurality of second convection components are respectively arranged on the furnace wire. above and below. In this application, the convection tube is arranged on the upper and lower parts of the heating wire and is combined with each other; the convection tube is provided with a diversion nozzle, and the length of the diversion nozzle can be selected as needed; the first nozzle above the furnace wire Pass through the gap between adjacent furnace wires and the second convection tube below the furnace wire to blow air to the glass surface; at the same time, the second nozzle under the furnace wire also blows air to the upper surface of the glass to heat the upper surface of the glass. purpose to increase speed and productivity.

Description

A forced convection device to increase the production capacity of double silver LOW-E glass

Technical field

The invention belongs to the technical field of glass production equipment, and specifically relates to a forced convection device for improving the production capacity of double silver LOW-E glass.

Background technique

When producing LOW-E glass, high-temperature fans and convection tubes are used to heat the glass in the heating furnace. There are different ways to heat the glass in the existing technology. Currently, the first technology is to arrange the interior of the heating furnace parallel to the quartz roller. The convection tube is equipped with nozzles. The nozzles are evenly arranged in the horizontal area to achieve the purpose of convection heating of the upper surface of the glass. The main air duct on the nozzle is connected to the left air box or to the right air box. The impact of this is that the main air duct on the nozzle is too long and is easily deformed; and the convection tube is under the furnace wire, causing the furnace wire to be too far from the glass surface, making it impossible to maximize the use of heat energy and affecting efficiency. At present, the second technology is to arrange a wind box parallel to the quartz roller inside the heating furnace. There is an electric heating wire inside the wind box. The heating wire is arranged perpendicularly to the quartz roller. The high-temperature fan rotates at high speed through the impeller, and the pressure is Air is blown into the air box, and several nozzles are provided at the bottom of the air box to conduct convection heating of the glass. The third technology is to arrange several air boxes perpendicular to the quartz roller table inside the heating furnace. Electric heating wires are installed inside the air boxes. The high-temperature fan blows pressurized air into these air boxes through the air distribution duct through the high-speed rotation of the impeller. In a bellows, several nozzles are provided at the bottom of the bellows to conduct convection heating of the glass. The fourth technology is to arrange a wind box parallel to the quartz roller inside the heating furnace. The wind box is divided into two sections in the width direction, each section is equipped with a high-temperature fan, and each section is equipped with electric heating wires and heating wires. The direction is perpendicular to the quartz roller. The high-temperature fan blows pressurized air into the air box through the high-speed rotation of the impeller. There are several nozzles at the bottom of the air box to convectively heat the glass. In the second, third, and fourth technologies, the furnace wire is inside the convection air box, and the radiant heat of the furnace wire is difficult to utilize, which seriously wastes the heat energy of the furnace wire.

Contents of the invention

The present invention solves the problems of low efficiency and high energy consumption existing in the existing technology by providing a forced convection device that improves the production capacity of double silver LOW-E glass with low energy consumption and high efficiency.

In order to achieve the above objects, the technical solution of the present invention is:

A forced convection device for improving the production capacity of double silver LOW-E glass, including a first convection component and a second convection component connected to a high-temperature fan. The first convection component and a plurality of second convection components are respectively arranged above the furnace wire. and below;

The first convection component includes a first convection tube and a plurality of first nozzles, the first nozzles are connected to the first convection tube and are arranged downward through the gap of the furnace wire;

The second convection assembly includes a second convection tube and a plurality of second nozzles. The second nozzles are connected to the second convection tube and are arranged downward. There is a hole penetrating up and down in the second convection tube, with a round hole in the hole. The tube is welded to the second convection tube, and the first nozzle is inserted into the round tube.

Preferably, the length of the first nozzle is longer than that of the second nozzle, and the second nozzle is disposed in a gap between the first nozzles.

Preferably, the first convection tube and the second convection tube are arranged in parallel above the gap of the quartz roller table, and the wind blown by the first nozzle and the second nozzle is directed towards the gap of the quartz roller table.

Preferably, the first convection component and the second convection component are both arranged symmetrically in the width direction of the furnace.

Preferably, the first nozzle and the second nozzle blow toward the glass at a certain angle.

Preferably, the first convection tube and the second convection tube are of equal diameter structure, that is, the tube diameters at both ends of the convection tube are the same.

Preferably, the first convection tube and the second convection tube have an unequal diameter pattern structure, that is, the diameter of the convection tube gradually decreases from one end to the other end.

The beneficial effects of the present invention are:

In this application, the convection tube is arranged on the upper and lower parts of the heating wire and is combined with each other; the convection tube is provided with a guide nozzle, and the length of the guide nozzle can be selected as needed; the first nozzle above the furnace wire Pass through the gap between adjacent furnace wires and the second convection tube below the furnace wire to blow air to the glass surface; at the same time, the second nozzle under the furnace wire also blows air to the upper surface of the glass to heat the upper surface of the glass. purpose to increase speed and productivity.

Description of the drawings

Figure 1 is a schematic front view of the structure of the present invention.

Figure 2 is an enlarged structural schematic diagram of part A in Figure 1.

Figure 3 is a schematic side view of the structure of the present invention.

In the figure: 10. High temperature fan; 20. First convection component; 21. First convection tube; 22. First nozzle; 30. Second convection component; 31. Second convection tube; 32. Second nozzle; 33. Hole; 34. Round tube; 40. Furnace wire; 50. Quartz roller.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiment of the present invention are only used to explain the relationship between components in a specific posture (as shown in the drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In the present invention, unless otherwise clearly stated and limited, the terms "connection", "fixing", etc. should be understood in a broad sense. For example, "fixing" can be a fixed connection, a detachable connection, or an integral body; It can be directly connected, or it can be indirectly connected through an intermediate medium. It can be the internal connection between two elements or the interactive relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on what a person of ordinary skill in the art can implement. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions is possible. It does not exist and is not within the protection scope required by the present invention.

Referring to Figures 1 to 3, a forced convection device for improving the production capacity of double silver LOW-E glass includes a first convection assembly 20 and a second convection assembly 30 connected to a high-temperature fan 10. The first convection assembly 20 and several The second convection components 30 are respectively disposed above and below the furnace wire 40; the first convection component 20 and the second convection component 30 are symmetrically arranged in the width direction in the tempering furnace, and the high-temperature fans 10 are respectively arranged along both ends of the tempering furnace. An air duct is provided, and the first convection assembly 20 and the second convection assembly 30 are connected to the air duct to blow hot air from both ends to the middle.

Specifically, the first convection assembly 20 includes a first convection tube 21 and a plurality of first nozzles 22. The first nozzles 22 are connected to the first convection tube 21 and are disposed downward through the gap of the furnace wire 40. ; The second convection assembly 30 includes a second convection tube 31 and a plurality of second nozzles 32. The second nozzles 32 are connected to the second convection tube 31 and are arranged downward. The through hole 33 is welded with a round tube 34 and the second convection tube 31 , and the first nozzle 22 is inserted into the round tube 34 . When in use, the first nozzle 22 and the second nozzle 32 perform forced convection heating on the upper surface of the glass at the same time, thereby increasing the heating speed and productivity of the glass.

The length of the first nozzle 22 is longer than the second nozzle 32. The lengths of the first nozzle 22 and the second nozzle 32 can be selected arbitrarily according to needs. The second nozzle 32 is arranged between the first nozzles 22. the gap. The first nozzle 22 passes through the gap between the adjacent furnace wires 40 and the second convection tube 31 below the furnace wire 40 to blow air to the glass surface. The blown wind is very close to the upper surface of the glass, thus maximizing the utilization of heat energy. , thus saving energy and improving production efficiency. The blowing direction of the second nozzle 32 is located in the gap that the first nozzle 22 on the furnace wire 40 does not reach, which makes up for the blind area that the first nozzle 22 on the furnace wire 40 cannot blow, and achieves the maximum heating effect of the thermal energy on the glass. Uniform distribution makes the flatness of the glass smoother and reduces wind spots caused by uneven heating of the glass.

The first convection tube 21 and the second convection tube 31 are arranged in parallel above the gap of the quartz roller conveyor 50 , and the wind blown out by the first nozzle 22 and the second nozzle 32 is directed toward the gap of the quartz roller conveyor 50 . Overheating of the quartz roller 50 is avoided to avoid scalding the lower surface of the glass. Preferably, the first nozzle 22 and the second nozzle 32 blow toward the glass at a certain angle. The first nozzle 22 is arranged in the gap between every two furnace wires 40 and blows to the furnace wires 40 at a certain angle, so that the gas field of the high-temperature gas in the heating furnace is blown from top to bottom to the glass. The upper surface prevents high-temperature gas from overflowing to the greatest extent and avoids waste of thermal energy.

The material of the convection tube can be high-temperature resistant stainless steel or high-temperature resistant ceramics. It is arranged symmetrically in the width direction of the furnace to minimize the deformation of the convection tube caused by being too long; the convection tube is equipped with a diversion nozzle ( The length of the diversion nozzle can be selected according to actual needs), which can make the high-temperature wind conductive, make the wind beam more concentrated, and the high-temperature wind pressure can be blown to the upper surface of the glass in a concentrated manner.

Furthermore, the first convection tube 21 and the second convection tube 31 are of equal diameter structure, that is, the diameters of both ends of the convection tube are the same. The convection tube is designed in an equal-diameter mode, which enables the pressure of the wind blown out from the nozzle of the convection tube to gradually increase from the end to the tail section, which facilitates the processing of large-format glass.

Furthermore, the first convection tube 21 and the second convection tube 31 have an unequal-diameter mode structure, that is, the diameter of the convection tube gradually decreases from one end to the other end. The convection tube is designed in an unequal diameter mode, which can make the pressure of the wind blown out from the nozzle of the convection tube be the same and very uniform, which is very suitable for the mixed installation of large and small pieces of glass.

During the production process of the tempering furnace, the glass goes through the previous processes and moves forward to the glass sheeting roller and enters the furnace for heating; during the heating process, the high-temperature fan is turned on, so that the two convection tube nozzles above and below the furnace wire are directed at the same time. When the glass is heated, the convection nozzles of the two convection ducts compensate for each other's blind spots, achieving the purpose of heating each area across the width of the glass without blind spots, thus ensuring the wind spot-free and flatness requirements of the glass.

After the glass is heated, the glass passes through the quartz roller and enters the quenching air grille for tempering and quenching to achieve the purpose of glass tempering. After the blowing is completed, the glass enters the unloading table and waits for manual or robotic unloading. This process is repeated over and over again.

The above are only examples of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present invention, or directly or indirectly applied to other related technologies fields are equally included in the scope of patent protection of the present invention.

Claims (7)

1. The forced convection device for improving the productivity of the double-silver LOW-E glass is characterized by comprising a first convection component and a second convection component which are connected with a high-temperature fan, wherein the first convection component and the second convection components are respectively arranged above and below a furnace wire;

the first convection assembly comprises a first convection tube and a plurality of first nozzles, and the first nozzles are connected to the first convection tube and downwards arranged through gaps of furnace wires;

the second convection assembly comprises a second convection tube and a plurality of second nozzles, the second nozzles are connected with the second convection tube and are downwards arranged, holes penetrating through the second convection tube vertically are formed in the second convection tube, round tubes are used for welding the holes with the second convection tube, and the first nozzles are inserted into the round tubes.

2. The forced convection apparatus for increasing throughput of dual silver LOW-E glass of claim 1, wherein said first nozzles are longer than said second nozzles, said second nozzles being disposed in the space between said first nozzles.

3. The forced convection device for improving productivity of double-silver LOW-E glass according to claim 1, wherein the first convection tube and the second convection tube are arranged above a gap of the quartz roller table in parallel, and wind blown by the first nozzle and the second nozzle faces the gap of the quartz roller table.

4. The forced convection apparatus for increasing double silver LOW-E glass production capacity of any of claims 1-3, wherein the first convection assembly and the second convection assembly are symmetrically arranged in a width direction within the furnace.

5. The forced convection apparatus for increasing throughput of dual silver LOW-E glass of claim 4, wherein said first nozzle and said second nozzle are each angled toward the glass.

6. The forced convection device for improving productivity of double-silver LOW-E glass according to claim 5, wherein the first convection tube and the second convection tube have equal diameter structures, namely, the tube diameters of two ends of the convection tube are identical.

7. The forced convection apparatus for increasing yield of dual silver LOW-E glass of claim 5, wherein said first convection tube and said second convection tube are of unequal diameter mode construction, i.e. the diameter of the convection tube decreases gradually from one end to the other.