CN213771811U - Float glass annealing kiln intelligent heating system - Google Patents
Float glass annealing kiln intelligent heating system Download PDFInfo
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- CN213771811U CN213771811U CN202022443341.XU CN202022443341U CN213771811U CN 213771811 U CN213771811 U CN 213771811U CN 202022443341 U CN202022443341 U CN 202022443341U CN 213771811 U CN213771811 U CN 213771811U
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Abstract
The utility model discloses a float glass annealing kiln intelligence heating system belongs to glass production facility technical field. The annealing furnace comprises an annealing furnace shell, wherein a heating partition, electric heating, thermocouples and glass plates are arranged in the annealing furnace shell, and the annealing furnace is characterized in that the number of the thermocouples and the electric heating is the same as that of the heating partition; the electric heating device is characterized in that the electric heating device is installed at the top of the annealing kiln shell and located in the heating subareas, the thermocouples are arranged in the annealing kiln shell and located in the heating subareas, the electric heating device and the thermocouples in each heating subarea are connected to a controller, and the controller is used for measuring the deviation between the space temperature value of the corresponding heating subarea of the thermocouple and a set value or the space temperature values of the rest heating subareas according to the thermocouples so as to start or stop the electric heating. The utility model discloses a steerable horizontal difference in temperature of system is stable, improves the yields of glass board.
Description
Technical Field
The utility model relates to a float glass annealing kiln intelligent heater system belongs to glass production facility technical field.
Background
In recent years, demand for ultra-thin glass has increased. At present, the annual demand of 0.7 mm-1.1 mm ultra-thin glass in China is about 5000 ten thousand square meters, and the annual demand is increased by 15 percent. With the rapid development of the world flat panel display technology, the world market has a great demand for ultra-thin glass. At present, the production of ultra-thin float glass in China only accounts for about 15 percent of the total output, the quantity of the ultra-thin float glass produced in China is far from meeting the domestic market demand, and a large amount of foreign exchange is imported from foreign countries every year in China. The country encourages to develop high-grade high-quality ultra-thin float glass projects, and can fully meet the requirements of industries such as ITO industry, electronic industry, high-precision instruments, glass deep processing and the like on high-grade ultra-thin float glass. The transverse temperature determines the stress distribution characteristics of the glass plate, the consistency of the transverse temperature is kept, and the yield of the glass plate can be improved. At present, the electric heating inside the annealing kiln is mainly arranged at the edge part of the annealing kiln, the arrangement is inconvenient to overhaul, the electric heating only heats the edge of the glass plate, the glass plate cannot be transversely and integrally heated, the transverse temperature difference is unstable, and when the transverse stress distribution in the glass is asymmetric and the tensile stress is large to a certain degree, the glass plate can be broken, so that the glass quality is influenced and the glass production yield is reduced; in addition, the existing heater is used for heating integrally after being turned on, and the low-temperature space cannot be heated independently according to different transverse positions.
SUMMERY OF THE UTILITY MODEL
[ problem ] to
The inside electrical heating of current annealing kiln mainly sets up in annealing kiln limit portion, overhauls inconveniently, can't be to the horizontal bulk heating of glass board, and horizontal difference in temperature is unstable, is bulk heating promptly after opening the heater, can not come the independent heating low temperature space according to horizontal different positions.
[ solution ]
The utility model provides an intelligent heater system of a float glass annealing kiln, which comprises an annealing kiln shell, wherein a heating subarea, an electric heater, a thermocouple and a glass plate are arranged in the annealing kiln shell, and the number of the thermocouple and the electric heater is the same as that of the heating subarea; the electric heating device is characterized in that the electric heating device is installed at the top of the annealing kiln shell and located in the heating subareas, the thermocouples are arranged in the annealing kiln shell and located in the heating subareas, the electric heating device and the thermocouples in each heating subarea are connected to a controller, and the controller is used for measuring the deviation between the space temperature value of the corresponding heating subarea of the thermocouple and a set value or the space temperature values of the rest heating subareas according to the thermocouples so as to start or stop the electric heating.
The utility model discloses an in an embodiment, annealing kiln casing top is equipped with fixed gallows, and the electrical heating inserts from annealing kiln casing one side, is fixed in on the fixed gallows.
In an embodiment of the present invention, the annealing furnace further comprises a thermocouple guide, and the thermocouple is arranged in the annealing furnace shell through the thermocouple guide.
In an embodiment of the present invention, when the thermocouple detects that the space temperature of the heating partition corresponding to the thermocouple deviates from the set value or the temperature values of the other heating partitions, the controller automatically turns on or off the electric heating of the corresponding area to heat, so as to raise or lower the temperature of the heating partition; when the temperature of the heating subarea is within the deviation range of the temperature or the set value of the rest heating subareas, the controller automatically turns off or turns on the electric heating of the heating subarea.
In one embodiment of the present invention, the deviation between the space temperature of each heating zone and the set value is within 5 ℃.
In one embodiment of the present invention, the deviation between the space temperatures between the heating zones is within 5 ℃.
In an embodiment of the present invention, the controller is a DCS controller.
In one embodiment of the present invention, the distance from the electric heating installation position to the glass plate is 380 mm.
[ advantageous effects ]
The electric heating device is arranged at the top of the annealing kiln shell, and is convenient to overhaul; in addition, the subareas are automatically controlled by a unified controller, and the controller measures the deviation between the space temperature value of the heating subarea corresponding to the thermocouple and a set value or the space temperature values of the other heating subareas according to the thermocouple, so that the electric heating is started or stopped, the transverse temperature difference can be controlled to be stable, and the yield of the glass plate is improved.
Drawings
Fig. 1 is a schematic view of a heater distribution structure of embodiment 1.
Fig. 2 is a schematic view of heater installation of embodiment 1.
In the figure: 1. a controller; 2. a thermocouple; 3. heating and partitioning; 4. a glass plate; 5. an annealing kiln shell; 6. fixing the hanger; 7. and (4) electrically heating.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of better explaining the present invention and is not intended to limit the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a horizontal intelligent heating system for glass plates in a float glass annealing furnace, which includes an annealing furnace casing 5, wherein a heating partition 3, an electric heating 7, thermocouples 2 and glass plates 4 are arranged in the annealing furnace casing 5, and the number of the thermocouples 2 and the electric heating 7 is the same as that of the heating partition 3; the electric heating 7 is arranged at the top of the annealing kiln shell 5 and is positioned in the heating subareas 3, the thermocouple 2 is arranged in the annealing kiln shell 5 and is positioned in the heating subareas 3, the electric heating 7 and the thermocouple 2 in each heating subarea 3 are connected to one controller 1, and the controller 1 is arranged in an electric control chamber; when the thermocouple 2 detects that the space temperature of the thermocouple 2 corresponding to the heating subarea 3 deviates from a set value or temperature values of other heating subareas, the controller 1 automatically starts or closes the electric heating 7 of the corresponding area for heating, and the temperature of the heating subareas is increased or reduced; when the temperature of the heating section is within a deviation range from the temperature of the remaining heating sections or the set value, the controller 1 automatically turns off or on the electric heating of the heating section.
Further, as shown in fig. 2, a fixing hanger 6 is provided on the top of the annealing furnace housing 5, and the electric heater 7 is inserted from one side of the annealing furnace housing 5 and fixed on the fixing hanger 6.
Further, a thermocouple guide is included, and the thermocouple 2 is arranged in the annealing kiln shell 5 through the thermocouple guide.
Further, the deviation of the space temperature of each heating subarea from the set value is within 5 ℃.
Further, the deviation between the space temperatures between the respective heating sections is within 5 ℃.
Further, the controller 1 employs a DCS controller (distributed control system).
Further, the electric heater 7 is installed at a distance of 380mm from the glass plate 4.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification to the above embodiments according to the technical substance of the present invention, equivalent changes and modifications, still belong to the protection scope of the technical solution of the present invention.
Claims (8)
1. An intelligent heating system of a float glass annealing kiln comprises an annealing kiln shell, wherein a heating partition, an electric heater, thermocouples and glass plates are arranged in the annealing kiln shell, and the intelligent heating system is characterized in that the number of the thermocouples and the electric heater is the same as that of the heating partition; the electric heating device is characterized in that the electric heating device is installed at the top of the annealing kiln shell and located in the heating subareas, the thermocouples are arranged in the annealing kiln shell and located in the heating subareas, the electric heating device and the thermocouples in each heating subarea are connected to a controller, and the controller is used for starting or stopping the electric heating device according to the deviation between the space temperature value of the thermocouple corresponding to the heating subarea and the temperature set value of the heating subarea or the space temperature values of the other heating subareas measured by the thermocouples.
2. The intelligent heating system of a float glass annealing furnace according to claim 1, wherein a fixing hanger is provided on the top of the annealing furnace housing, and the electric heater is inserted from one side of the annealing furnace housing and fixed to the fixing hanger.
3. The intelligent heating system of a float glass annealing lehr of claim 1 further comprising a thermocouple guide, wherein the thermocouple is disposed in the annealing lehr housing through the thermocouple guide.
4. The intelligent heating system of a float glass annealing furnace according to claim 1, wherein when the thermocouple detects that the space temperature of the heating zone corresponding to the thermocouple deviates from the set value or the temperature values of the other heating zones, the controller automatically turns on or off the electric heating of the corresponding zone for heating, and raises or lowers the temperature of the heating zone; when the temperature of the heating subarea is within the deviation range of the temperature or the set value of the rest heating subareas, the controller automatically turns off or turns on the electric heating of the heating subarea.
5. The intelligent heating system of a float glass annealing furnace according to claim 1, wherein the deviation of the space temperature of each heating section from the set value of the heating section is within 5 ℃.
6. The intelligent heating system of a float glass annealing kiln according to claim 1, wherein the deviation between the space temperatures of the respective heating sections is within 5 ℃.
7. The intelligent heating system of a float glass annealing kiln according to claim 1, wherein the controller is a DCS controller.
8. The intelligent heating system of a float glass annealing furnace according to claim 1, wherein the distance from the electric heating installation position to the glass plate is 380 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022443341.XU CN213771811U (en) | 2020-10-28 | 2020-10-28 | Float glass annealing kiln intelligent heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022443341.XU CN213771811U (en) | 2020-10-28 | 2020-10-28 | Float glass annealing kiln intelligent heating system |
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| CN213771811U true CN213771811U (en) | 2021-07-23 |
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| CN202022443341.XU Active CN213771811U (en) | 2020-10-28 | 2020-10-28 | Float glass annealing kiln intelligent heating system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988675A (en) * | 2022-05-27 | 2022-09-02 | 中国洛阳浮法玻璃集团有限责任公司 | Control device and control method for flat glass warping defect |
| CN116119912A (en) * | 2023-01-31 | 2023-05-16 | 蚌埠凯盛工程技术有限公司 | Water-cooling annealing kiln and water-cooling annealing process |
| CN116573843A (en) * | 2023-07-13 | 2023-08-11 | 张家港市锦明机械有限公司 | Annealing kiln capable of recycling waste heat |
-
2020
- 2020-10-28 CN CN202022443341.XU patent/CN213771811U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988675A (en) * | 2022-05-27 | 2022-09-02 | 中国洛阳浮法玻璃集团有限责任公司 | Control device and control method for flat glass warping defect |
| CN114988675B (en) * | 2022-05-27 | 2023-11-07 | 中国洛阳浮法玻璃集团有限责任公司 | Control device and control method for plate glass warping defect |
| CN116119912A (en) * | 2023-01-31 | 2023-05-16 | 蚌埠凯盛工程技术有限公司 | Water-cooling annealing kiln and water-cooling annealing process |
| CN116119912B (en) * | 2023-01-31 | 2024-04-30 | 蚌埠凯盛工程技术有限公司 | Water-cooling annealing kiln and water-cooling annealing process |
| CN116573843A (en) * | 2023-07-13 | 2023-08-11 | 张家港市锦明机械有限公司 | Annealing kiln capable of recycling waste heat |
| CN116573843B (en) * | 2023-07-13 | 2023-09-12 | 张家港市锦明机械有限公司 | Annealing kiln capable of recycling waste heat |
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