TWM466103U - Overflow tank temperature compensation system - Google Patents

Description

Overflow tank temperature compensation system

An overflow tank temperature compensation system is applied to a flat glass process, and the utility model mainly comprises an overflow tank temperature compensation system in which a horizontal array temperature increasing device is horizontally disposed on both sides of the overflow tank to make the glass liquid reach a horizontal uniform temperature requirement. .

The method for forming a glass sheet is mainly a slot down method, an overflow method, a floating method, etc., wherein the overflow method mainly introduces a molten glass liquid into an overflow tank, and the glass liquid overflows. When the inside of the tank flows, it is connected to one end of the overflow tank to the other end of the overflow tank, and when the molten glass continues to flow in the overflow tank, the high-temperature glass liquid contacts the air having a lower external temperature. The heat radiation will be slowly taken away by the air, causing the temperature of the glass at both ends to be inconsistent. This phenomenon is caused by the inconsistency of the lateral temperature of the molten glass in the back-end process (such as the annealing process). During the annealing process, the flat glass produced is likely to have different thicknesses and "warping". However, this situation has a great influence on the flat glass products. At present, the solid processing equipment has assembled the heating tube in the overflow. Above the tank, the glass liquid of the initial overflow is heated, but this method is still lacking. Loss, because the molten glass system is in a high temperature state, an upward hot gas is generated above the overflow tank. When the warming device is subjected to the hot air for a long time, the surface of the warming device will accumulate tiny glass crystals when the glass crystallizes. After being deposited to a certain extent, it will fall into the glass, causing the formed flat glass to carry the crystal. This situation is not for the process personnel; see "Figure 1", which is a well-known overflow. The flow tank temperature heating device, as shown in the figure, is an overflow tank temperature heating device 10, which can be assembled by an overflow tank 11 to form a surrounding, and the overflow tank temperature heating device 10 has a heating furnace 101. A plurality of heating tubes 102 are disposed inside the heating furnace 101, and the heating tubes 102 are vertically arranged in the heating furnace 101 and surround the two sides of the overflow tank 11; when the glass liquid is along both sides of the overflow tank 11 When overflowing, the glass liquid can be heated by the vertically arranged heating tubes 102. However, usually, an annealing device 12 is disposed at the bottom end of the overflow tank, and a annealing device 12 and the overflow tank 11 are formed. Quenching the area and forming an upward wind, cold glass When the liquid is blown by the cold air, the temperature will be destabilized, and the bottom end of the overflow tank 11 is subjected to cold wind for a long time, and a zirconium crystal Z is formed at the bottom end of the overflow tank, and the zirconium crystal Z will pass through the The smoothness of the flat glass in the position has an effect, that is, how to make the glass liquid reach the lateral temperature and the thickness of the flat glass liquid are consistent, which is a problem to be solved.

In view of the above problems, the creator is based on the experience of flat glass manufacturing for many years, researching and analyzing the process of flat glass and the equipment required in the process, and can develop the solution to the above problems. Therefore, the main purpose of this creation is to provide an overflow tank temperature compensation system that can achieve the uniformity of the lateral temperature of the molten glass and the thickness of the flat glass produced.

In order to achieve the above purpose, the overflow tank temperature compensation system of the present invention mainly comprises an overflow tank set in a heating furnace, so that the outer periphery of the overflow tank is surrounded by the heating furnace, and the complex array in the heating furnace is utilized. The temperature increasing device sequentially forms a first heating zone, a second heating zone and a third heating zone from top to bottom in the heating furnace, and each heating zone can respectively provide an appropriate temperature, wherein, when a molten state When the molten glass flows through the first heating zone, the molten glass can be uniformly heated to bring the temperature to a uniform temperature state, and then when flowing through the second heating zone, the molten glass can be heated to maintain a uniform temperature, and finally flows through. In the third heating zone, the molten glass can be heated by the third heating zone to compensate for the temperature loss caused by the lower temperature of the lower temperature, thereby ensuring the lateral temperature of both sides of the liquid flow tank and flowing out through the liquid flow port. The thickness of the formed flat glass is consistent.

In order for your review board to have a clear understanding of the content of this creation, please refer to the following instructions only.

10‧‧‧Overflow tank temperature heating device

101‧‧‧heating furnace

102‧‧‧heat pipe

11‧‧‧Overflow trough

12‧‧‧ Annealing device

Z‧‧‧Zirconium crystal

20‧‧‧Overflow tank temperature compensation system

201‧‧‧heating furnace

2011‧‧‧ accommodating space

2012‧‧‧First heating zone

2013‧‧‧second heating zone

2014‧‧‧ third heating zone

202‧‧‧Warming device

203‧‧‧Insulation unit

30‧‧‧Overflow trough

Figure 1 is a conventional overflow tank temperature heating device.

Figure 2 is a three-dimensional appearance of the creation.

Figure 3 is a cross-sectional view of the creation.

Figure 4 is a schematic diagram of the implementation of this creation.

Please refer to "Fig. 2", which is a three-dimensional appearance of the creation. In the figure, an overflow tank temperature compensation system 20 is mainly composed of a heating furnace 201 and a plurality of temperature increasing devices 202. The heating furnace 201 can be, for example, a high-temperature furnace, such as a Muffle furnace; the heating furnace 201 has an accommodation space 2011 therein, which can be assembled by an overflow tank 30. Wherein (the dotted line portion of the figure), wherein the inner wall surface of the heating furnace 201, the stacking ring is provided with a plurality of heat insulating units 203, and each of the heat insulating units 203 can be, for example, an insulating brick made of zirconium dioxide (ZrO ₂ ). The utility model is characterized in that the bulk density is small, the light weight, the extremely high temperature heat resistance and the low thermal conductivity are excellent. In the embodiment, the heat retention unit 203 is arranged on the inner wall surface of the heating furnace 201 (forming a coating). In order to prevent the temperature inside the heating furnace 201 from escaping.

Please refer to "3", which is a cross-sectional view of the creation. The various temperature increasing devices 202 in the figure are respectively disposed in the heating furnace 201 adjacent to the top sides and the sides of the middle portion. And the positions on both sides of the bottom portion, and the temperature increasing devices 202 on both sides of the heating furnace 201 are symmetrically arranged around the overflow tank 30, and are evenly distributed on the outer side of the overflow tank 30; each temperature increasing device 202 completes the group. After that, a first heating zone 2012 is formed between the plurality of warming devices 202 on the two sides of the heating furnace 201, and a second is formed between the plurality of warming devices 202 on both sides of the heating furnace 201 adjacent to the middle portion. The heating zone 2013, finally, a third heating zone 2014 is formed between the plurality of warming devices 202 on the two sides of the heating furnace 201, the first heating zone 2012, the second heating zone The hot zone 2013 and the third heating zone 2014 can generate temperature by each temperature increasing device 202, and can respectively provide the functions of temperature equalization, temperature maintenance, and temperature compensation, and each heating is arranged in order from top to bottom, and each heating is performed. The temperature provided in the zone is also different. Moreover, the heat generated by the warming device 202 can cause thermal convection inside the heating furnace 201 by the heat insulating effect generated by the heat insulating unit 203; wherein the warming device is formed The 202 series can be formed, for example, by one or more heating tubes, and the temperature generated by the heating tube must match the operating temperature required for the molten glass in the glass, and the length of the heating tube and the overflow tank Match.

Please refer to "Figure 4", which is a schematic diagram of the implementation of this creation. Please refer to "Figure 3". As shown in the figure, under normal conditions, the overflow tank 30 is accommodated in the accommodation space of the heating furnace 201. In 2011, each temperature increasing device 202 of the overflow tank temperature compensation system 20 can perform a heating operation before the glass process; initially, the molten glass 12 is injected into the overflow tank 30 by a platinum tube, the first heating The warming device 202 on both sides of the area 2012 heats the molten glass 12 in the first heating zone 2012, so that the temperature of the molten glass in the first heating zone 2012 reaches the uniform temperature, and the glass liquid continues When flowing downward to the second heating zone 2013, the molten glass is uniformly heated by the warming devices 202 on both sides of the second heating zone 2013, so that the molten glass 12 in the second heating zone 2013 can be maintained at a certain level. The temperature, finally, when the glass liquid flows to the third heating zone 2014, the warming device 202 on both sides of the third heating zone 2014 heats the molten glass 12 to compensate for the heating of the molten glass 12 in the third heating zone 2014. The temperature below the furnace 201 is relatively cold, which ensures the temperature loss. Before the annealing operation of the molten glass 12, the lateral temperature of the molten glass 12 can be made uniform, and the thickness of the formed flat glass is also made uniform; wherein, due to the height difference from the top to the bottom of the overflow tank, The difference in the degree of temperature loss of the molten glass at any height is different. Therefore, the author can adjust the amount of assembly of the warming device or the heating power thereof according to the data of the degree of temperature loss obtained by the pre-missing calculation. , or its variable temperature, etc., in order to achieve the best heating efficiency.

As described above, the present invention is mainly in a heating furnace, in which a plurality of sets of temperature increasing devices are sequentially arranged from top to bottom, so that a plurality of heating zones are formed in the heating furnace, and each heating zone respectively provides different compensation temperatures. Wherein, when the molten glass flows to the first heating zone, the molten glass of the initial overflow flow may be heated laterally by the first heating zone, so that the temperature of the molten glass forms an even temperature state, and the second heating zone can flow to the zone. The molten glass is heated to maintain a fixed temperature of the glass in this zone, and finally the third heating zone can compensate for the temperature loss caused by the cold temperature of the glass in the zone, and accordingly, according to the implementation of the creation It is indeed possible to provide an overflow tank temperature compensation system which can make the lateral temperature of the glass liquid and the thickness of the flat glass made thereof uniform.

The above descriptions are only for the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention. All changes and modifications to this creation shall be covered by the scope of this creation.

In summary, the effectiveness of this creation is in line with the “practicality”, “novelty” and “progressiveness” of the patent application requirements; the applicant filed an application for the creation of a patent with the stipulations in accordance with the provisions of the Patent Law.

20‧‧‧Overflow tank temperature compensation system

201‧‧‧heating furnace

2011‧‧‧ accommodating space

202‧‧‧First warming device

203‧‧‧Insulation unit

Claims (5)

An overflow tank temperature compensation system is applied to a flat glass process for assembly on an outer periphery of an overflow tank, and can provide temperature compensation for a molten glass overflowing from the overflow tank, comprising: a heating furnace The inner wall surface is arranged to have an accommodating space for the overflow trough to be disposed in the accommodating space. After being assembled, the inner wall surface of the overflow trough is at an appropriate distance; a plurality of thermal insulation units, a stacking ring is disposed on the inner wall surface of the heating furnace; a complex array warming device is disposed between the inner wall surface and the overflow tank, and the heating furnace sequentially forms a first for temperature compensation from top to bottom The heating zone has a second heating zone that maintains a uniform temperature state at both operating temperatures, and a third heating zone that produces a pre-temperature compensation function. The overflow tank temperature compensation system of claim 1, wherein each of the first heating zone, the second heating zone, and the third heating zone produces different temperatures . The overflow tank temperature compensation system according to claim 1, wherein the heating furnace is a muffle furnace. The overflow tank temperature compensation system according to claim 1, wherein the heat preservation unit is an insulation brick. The overflow tank temperature compensation system according to claim 1, wherein each of the temperature increasing devices is a heating pipe.