Air grid conversion device of photovoltaic glass tempering furnace

Abstract

An air grid conversion device of a photovoltaic glass tempering furnace comprises a medium-pressure fan and a high-pressure fan, an air outlet of the medium-pressure fan is connected with an air inlet of a first air supply pipeline, an air outlet of the first air supply pipeline is connected with an air inlet of a medium-pressure pressure stabilizing chamber, and an air outlet of the medium-pressure pressure stabilizing chamber is communicated with a first air inlet of an air exhaust through a first soft phase; an air outlet of the high-pressure fan is connected with an air inlet of the second air supply pipeline, an air outlet of the second air supply pipeline is connected with an air inlet of the high-pressure stabilizing chamber, and an air outlet of the high-pressure stabilizing chamber is communicated with a second air inlet of the air exhaust through a second flexible connector; the first magnetic control air cylinder controls the first flashboard to descend, the second magnetic control air cylinder controls the second flashboard to ascend, a part of medium-pressure air grids can be converted into high-pressure air grids, the air pressure in the part of air grids can be kept consistent with the air pressure and flow in the high-pressure air grids, thin glass is rapidly cooled, and tempering of the glass is achieved. The device has the advantages of stable structure, simplicity in operation and quickness in adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy photovoltaic glass tempering manufacturing, and in particular to a photovoltaic glass tempering furnace wind grid conversion device. Background Art

[0002] At present, the high-pressure air grille of photovoltaic glass tempering furnace is generally designed to be 1.6 meters to 2.0 meters. However, photovoltaic glass is developing towards larger sizes, and the product length is required to reach more than 2.5 meters. If the high-pressure air grille is too short, the quenching time of the glass is too short, and the glass is difficult to shape, resulting in poor flatness of the glass and a bow wave shape that is difficult to meet user technical specifications. Summary of the invention

[0003] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the utility model is to provide a photovoltaic glass tempering furnace wind grid conversion device, which can be used as the high-pressure wind grid length of a conventional tempering furnace when producing small-sized photovoltaic glass; when producing large-sized photovoltaic glass, using this device can increase the length of the high-pressure wind grid by 25%, thereby solving the problem of poor flatness of ultra-thin tempered glass while ensuring that the energy consumption of the fan does not increase.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A photovoltaic glass tempering furnace wind grid conversion device, comprising a medium-pressure fan 3 and a high-pressure fan 4, wherein the air outlet of the medium-pressure fan 3 is connected to the air inlet of a first air supply duct 2, the air outlet of the first air supply duct 2 is connected to the air inlet of a medium-pressure plenum 1, and the air outlet of the medium-pressure plenum 1 is connected to the first air inlet of an air exhaust 11 through a first hose 14;

[0006] The air outlet of the high-pressure blower 4 is connected to the air inlet of the second air supply duct 5, the air outlet of the second air supply duct 5 is connected to the air inlet of the high-pressure stabilizing chamber 10, and the air outlet of the high-pressure stabilizing chamber 10 is connected to the second air inlet of the air exhaust 11 through the second hose 15.

[0007] A first gate plate 7 is installed in the medium-pressure stabilization chamber 1 , and the first gate plate 7 is connected to the control end of the first magnetic control cylinder 6 .

[0008] A second gate plate 8 is installed in the high-pressure stabilization chamber 10 , and the second gate plate 8 is connected to the control end of the second magnetic control cylinder 9 .

[0009] The first gate plate 7 and the second gate plate 8 form a closed pressure stabilizing chamber 13 .

[0010] The air outlet of the air vent 11 is evenly distributed with small holes.

[0011] The air pressure of the medium-pressure blower 3 is 5-8 kPa.

[0012] The air pressure of the high-pressure blower 4 is 8-15 kPa.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model adopts the first magnetic control cylinder 6 and the second magnetic control cylinder 9 to control the rise and fall of the first gate 7 and the second gate 8 respectively, which can be operated on the tempering furnace operation touch screen, thereby improving the conversion efficiency of the high-pressure air grid and the medium-pressure air grid.

[0015] 2. Since the number and power of fans have not increased, the energy consumption of fans will not increase after the use of the utility model.

[0016] 3. By converting a section of medium-pressure grating into high-pressure grating, the length of the high-pressure grating is increased, thereby increasing the number of quenching air rows and the quenching time of the glass. When producing photovoltaic ultra-thin large-size glass, it can be fully cooled and shaped, so that the flatness of photovoltaic ultra-thin large-size glass can be controlled, with bow ≤0.15%; waveform ≤0.30mm (300mm); warp ≤0.4mm.

[0017] 4. The utility model wind screen conversion device converts the volume of the high-pressure air collecting box and the medium-pressure air collecting box, so that the front end of the medium-pressure air exhaust and the high-pressure air exhaust sprays high-pressure or low-pressure air to quench the glass. The energy consumption of the high-pressure fan does not change, so the unit energy consumption of the tempered glass will not increase.

[0018] 5. The utility model has the advantages of stable structure, simple operation and quick adjustment.

[0019] 6. The utility model increases the quenching time of the glass, so that the glass can be sufficiently cooled and shaped in the high-pressure wind grid, thus overcoming the technical difficulty of poor flatness of thin glass tempering. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the wind grid conversion device of the photovoltaic glass tempering furnace of the present utility model.

[0021] Figure 2 It is a left view of the wind grid conversion device of the photovoltaic glass tempering furnace of the utility model.

[0022] Figure 3 It is a cross-sectional view of the wind grid conversion device of the photovoltaic glass tempering furnace of the utility model.

[0023] In the figure, 1. medium-pressure stabilizing chamber; 2. first air supply duct; 3. medium-pressure fan; 4. high-pressure fan; 5. second air supply duct; 6. first magnetic-controlled cylinder; 7. first gate; 8. second gate; 9. second magnetic-controlled cylinder; 10. high-pressure stabilizing chamber; 11. exhaust; 12. glass; 13. stabilizing chamber; 14. first hose; 15. second hose. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] See also Figure 1 , Figure 2 , Figure 3 , a photovoltaic glass tempering furnace wind grid conversion device, comprising a medium-pressure fan 3 and a high-pressure fan 4, the air outlet of the medium-pressure fan 3 is connected to the air inlet of the first air supply duct 2, the air outlet of the first air supply duct 2 is connected to the air inlet of the medium-pressure plenum 1, and the air outlet of the medium-pressure plenum 1 is connected to the first air inlet of the air exhaust 11 through a first hose 14;

[0026] The air outlet of the high-pressure blower 4 is connected to the air inlet of the second air supply duct 5, the air outlet of the second air supply duct 5 is connected to the air inlet of the high-pressure stabilizing chamber 10, and the air outlet of the high-pressure stabilizing chamber 10 is connected to the second air inlet of the air exhaust 11 through the second hose 15.

[0027] A first gate plate 7 is installed in the medium-pressure stabilization chamber 1 , and the first gate plate 7 is connected to the control end of the first magnetic control cylinder 6 .

[0028] A second gate plate 8 is installed in the high-pressure stabilization chamber 10 , and the second gate plate 8 is connected to the control end of the second magnetic control cylinder 9 .

[0029] The first gate plate 7 and the second gate plate 8 form a closed pressure stabilizing chamber 13 .

[0030] The air outlet of the air vent 11 is evenly distributed with small holes.

[0031] The air pressure of the medium-pressure blower 3 is 5-8 kPa.

[0032] The air pressure of the high-pressure blower 4 is 8-15 kPa.

[0033] The working principle of the utility model is:

[0034] See also Figure 1 The medium-pressure fan 3 is running to form (5-8) kPa air, and the air is sent into the medium-pressure stabilizing chamber 1 through the first air supply duct 2 connected thereto for pressure stabilization. The stabilized air is sent to the air exhaust 11 through the first hose 14. The air exhaust 11 has densely distributed small holes, which evenly cool the upper and lower surfaces of the glass 12;

[0035] The high-pressure fan 4 operates to form (8-15) kPa air, and the air is sent into the high-pressure stabilizing chamber 10 through the second air supply duct 5 connected thereto for pressure stabilization. The stabilized air is sent to the air exhaust 11 through the second hose 15. The air exhaust 11 is evenly distributed with many dense small holes, which quickly cool the upper and lower surfaces of the high-temperature glass 12, so that compressive stress is formed on the glass surface and tensile stress is formed inside, so as to achieve the purpose of tempering;

[0036] The first magnetic control cylinder 6 is connected with the first gate plate 7 and installed in the medium pressure stabilization chamber 1. The first magnetic control cylinder 6 controls the first gate plate 7 to rise and fall. The second magnetic control cylinder 9 is connected with the second gate plate 8 and installed in the high pressure stabilization chamber 10. The second magnetic control cylinder 9 controls the second gate plate 8 to rise and fall.

[0037] When the first damper 7 is in the ascending position, the second damper 8 is in the descending position, and the medium-pressure stabilization chamber 1 is connected with the stabilization chamber 13, and the two are combined into one, and used as a medium-pressure stabilization chamber. At this time, the air exhaust 11 connected with the stabilization chamber 13 is filled with medium-pressure air to cool the glass 12;

[0038] When the first gate plate 7 is in the lowered position, the second gate plate 8 is in the raised position, and the high-pressure stabilization chamber 10 is connected with the pressure stabilization chamber 13, and the two are combined into one to serve as a high-pressure stabilization chamber. At this time, the air exhaust connected to the stabilization chamber 13 is filled with high-pressure air, which quickly quenches the glass 12.

[0039] When producing small-sized photovoltaic glass, the second magnetic control cylinder 9 controls the second gate plate 8 to descend, the first magnetic control cylinder 6 controls the first gate plate 7 to rise, and the high-pressure gas generated by the high-pressure fan 4 enters the high-pressure stabilizing chamber 10 through the second air supply duct 5 for pressure stabilization, and then the high-pressure gas passes through the air exhaust 11 to quench the glass 12. The medium-pressure gas generated by the medium-pressure fan 3 enters the medium-pressure stabilizing chamber 1 through the first air supply duct 2 for pressure stabilization, and then the medium-pressure gas passes through the air exhaust 11 to cool the glass 12.

[0040] When producing large-size photovoltaic glass, the second magnetic control cylinder 9 controls the second gate plate 8 to rise, the first magnetic control cylinder 6 controls the first gate plate 7 to descend, and the high-pressure gas generated by the high-pressure fan 4 enters the high-pressure stabilizing chamber 10 through the second air supply duct 5 for pressure stabilization, and then the high-pressure gas passes through the air exhaust 11 to quench the glass 12. The high-pressure gas generated by the medium-pressure fan 3 enters the medium-pressure stabilizing chamber 1 through the first air supply duct 2 for pressure stabilization, and then the medium-pressure gas passes through the air exhaust 11 to cool the glass 12.

[0041] By controlling the first gate plate 7 to descend through the first magnetically controlled cylinder 6 and the second gate plate 8 to ascend through the second magnetically controlled cylinder 9, a portion of the medium-pressure wind grid (wind pressure 5-8 MPa) can be converted into a high-pressure wind grid. The wind pressure in this portion of the wind row 11 can be consistent with the wind pressure (10-15) MPa and flow rate in the high-pressure wind row, so that the thin glass can be quickly cooled, thereby forming compressive stress on the glass surface and tensile stress inside, thereby achieving tempering of the glass. The device can increase the quick cooling time of the glass by 20%, which not only increases the tempering degree of the glass, but also ensures the flatness of the glass.

Claims

1. A photovoltaic glass tempering furnace wind grid conversion device, characterized in that: It comprises a medium-pressure fan (3) and a high-pressure fan (4), wherein the air outlet of the medium-pressure fan (3) is connected to the air inlet of the first air supply duct (2), the air outlet of the first air supply duct (2) is connected to the air inlet of the medium-pressure plenum (1), and the air outlet of the medium-pressure plenum (1) is connected to the first air inlet of the air exhaust (11) via a first hose (14); The air outlet of the high-pressure fan (4) is connected to the air inlet of the second air supply duct (5), the air outlet of the second air supply duct (5) is connected to the air inlet of the high-pressure stabilizing chamber (10), and the air outlet of the high-pressure stabilizing chamber (10) is connected to the second air inlet of the air exhaust (11) through a second hose (15).

2. A photovoltaic glass tempering furnace air grid conversion device according to claim 1, characterized in that: A first gate plate (7) is installed in the medium-pressure stabilizing chamber (1), and the first gate plate (7) is connected to the control end of the first magnetic control cylinder (6); A second gate plate (8) is installed in the high-pressure stabilizing chamber (10), and the second gate plate (8) is connected to the control end of the second magnetic control cylinder (9).

3. A photovoltaic glass tempering furnace air grid conversion device according to claim 2, characterized in that: The first gate plate (7) and the second gate plate (8) form a closed pressure-stabilizing chamber (13).

4. The photovoltaic glass tempering furnace air grid conversion device according to claim 1, characterized in that: The air outlet of the air row (11) is evenly distributed with small holes.

5. The photovoltaic glass tempering furnace air grid conversion device according to claim 1, characterized in that: The air pressure of the medium-pressure blower (3) is 5-8 kPa.

6. The photovoltaic glass tempering furnace air grid conversion device according to claim 1, characterized in that: The air pressure of the high-pressure blower (4) is 8-15 kPa.

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