CN217578664U - Auxiliary heating and heat-insulating system for substrate glass cooling section channel - Google Patents
Auxiliary heating and heat-insulating system for substrate glass cooling section channel Download PDFInfo
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- CN217578664U CN217578664U CN202221326580.XU CN202221326580U CN217578664U CN 217578664 U CN217578664 U CN 217578664U CN 202221326580 U CN202221326580 U CN 202221326580U CN 217578664 U CN217578664 U CN 217578664U
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Abstract
The utility model discloses a base plate glass cooling zone passageway auxiliary heating and heat preservation system, include, lateral part auxiliary heater and top auxiliary heater, lateral part auxiliary heater is including lateral part auxiliary heater an and lateral part auxiliary heater b that the symmetry set up, top auxiliary heater is including top auxiliary heater an and the top auxiliary heater b that the symmetry set up, set up through the symmetry, the homogeneity that glass liquid heated all around has been guaranteed, lateral part auxiliary heater is connected with top auxiliary heater and encloses into a hollow inner space, cooling zone platinum body has been placed to the inner space, the lateral part auxiliary heater outside is provided with the lateral part insulating brick, the top auxiliary heater outside is provided with the top insulating brick, be provided with the packing clearance simultaneously between lateral part auxiliary heater and top auxiliary heater and cooling zone platinum body, ensure the controllability of cooling process, guarantee reasonable cooling gradient.
Description
Technical Field
The utility model relates to a base plate glass makes the field, specifically is a base plate glass cooling zone passageway auxiliary heating and heat preservation system.
Background
The substrate glass is one of the important raw materials for forming the liquid crystal panel, the influence on the performance of the panel product is very large, and indexes such as resolution, transmittance, thickness, weight, visual angle and the like of the panel finished product are closely related to the quality of the adopted substrate glass.
The substrate glass belongs to the field of high-temperature manufacturing, different processes are required to be carried out on molten glass liquid through a plurality of devices, a channel cooling section is used as one of key devices in the production and manufacturing process of the substrate glass, the main function of the substrate glass is to uniformly and rapidly cool the high-temperature glass liquid under the high-quality requirement, the temperature of the high-temperature glass liquid can reach the condition of meeting the forming and feeding in limited time, and the prior art is difficult to meet.
In order to effectively realize the function of the cooling section, the cooling section improves the heat dissipation capacity of the cross section through the design mode of a flat tube type structure, and then in the process of cooling the glass liquid from high temperature to low temperature, as the glass liquid is fast in heat dissipation close to the peripheral glass liquid and slow in heat dissipation close to the inner glass liquid in the platinum channel, the non-uniformity of cooling of the cooling section is caused, foreign melts such as platinum, rhodium and the like which are melted in the glass liquid are easy to separate out, the stripe defect is seriously generated, and the yield of the substrate glass is reduced; meanwhile, the change of the cooling gradient can influence the forming temperature and the extraction amount of the substrate glass, thereby influencing the overflow forming quality of the substrate glass and the uniformity of the thickness.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an auxiliary heating and heat-preserving system for a channel of a substrate glass cooling section, which overcomes the problems in the prior art,
in order to achieve the above object, the utility model provides a following technical scheme:
a substrate glass cooling section channel auxiliary heating and heat preservation system comprises a side auxiliary heater and a top auxiliary heater, wherein the side auxiliary heater comprises a side auxiliary heater a and a side auxiliary heater b which are symmetrically arranged;
preferably, the side auxiliary heater, the top auxiliary heater, the side insulating brick and the top insulating brick are all made of 1500 ℃ resistant isostatic pressing alumina materials, the mass fraction of alumina is more than or equal to 98%, the thermal shock resistance of the isostatic pressing alumina materials is more than or equal to 20 times, and the thermal conductivity is less than 0.8W/m.k;
preferably, the inner side of the side auxiliary heater is of a semi-circular structure, and the diameter of the side auxiliary heater is 200 mm-250 mm;
preferably, the thickness of the side auxiliary heater is 35 mm-45 mm, and the arc length is 350 mm-430 mm;
preferably, the thickness of the top auxiliary heater is 30 mm-40 mm, and the width is 740 mm-790 mm;
preferably, heater strips are buried in the side auxiliary heater and the top auxiliary heater, the heater strips are made of platinum, and the diameter of the heater strips is 2.4-3.5 mm;
preferably, the side auxiliary heater a and the side auxiliary heater b are connected in series to form the same heating loop, and the top auxiliary heater a and the top auxiliary heater b are independent heating loops;
preferably, the side auxiliary heaters and the top auxiliary heater are spaced from the platinum channels of the cooling section by the same distance to fill the gaps.
Preferably, the width of the filling gap is 10 mm-20 mm, the filling material in the filling gap is alumina powder, the content of alumina is more than or equal to 99%, the particle size is 0.2 mm-5 mm, and the thermal conductivity is 0.5W/m.k-1.0W/m.k.
Preferably, one side of the top auxiliary heater close to the platinum body of the cooling section is an effective heating area, the width of the effective heating area is 520 mm-560 mm, and the length of the effective heating area is 350 mm-430 mm.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model provides a base plate glass cooling zone passageway auxiliary heating and heat preservation system, including lateral part auxiliary heater and top auxiliary heater, lateral part auxiliary heater is including lateral part auxiliary heater an and lateral part auxiliary heater b that the symmetry set up, top auxiliary heater is including top auxiliary heater an and the top auxiliary heater b that the symmetry set up, set up through the symmetry, the homogeneity that glass liquid heated all around has been guaranteed, lateral part auxiliary heater is connected with top auxiliary heater and encloses into a hollow inner space, cooling zone platinum body has been placed to the inner space, the lateral part auxiliary heater outside is provided with the lateral part insulating brick, the top auxiliary heater outside is provided with the top insulating brick, be provided with the packing clearance simultaneously between lateral part auxiliary heater and top auxiliary heater and cooling zone platinum body, ensure the controllability of cooling process, guarantee reasonable cooling gradient.
Furthermore, the side auxiliary heater a and the side auxiliary heater b are connected in series to form the same heating loop, and the top auxiliary heater a and the top auxiliary heater b are independent heating loops, so that the heating uniformity of the molten glass is further improved.
Drawings
FIG. 1 is a schematic structural view of a system for auxiliary heating and heat preservation of a channel of a substrate glass cooling section,
FIG. 2 is a top plan view of the top supplemental heater of the present invention.
In the figure, 1-side auxiliary heater, 2-side insulating brick, 3-top auxiliary heater, 4-top insulating brick, 5-platinum body, 6-filling gap, 1-1-side auxiliary heater a, 1-2 side auxiliary heater b, 3-1-top auxiliary heater a, 3-2-top auxiliary heater b.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
As shown in figure 1, the utility model provides a substrate glass cooling section channel auxiliary heating and heat preservation system, which comprises a side auxiliary heater 1 and a top auxiliary heater 3, wherein the side auxiliary heater 1 comprises a side auxiliary heater a1-1 and a side auxiliary heater b1-2 which are symmetrically arranged, the top auxiliary heater 3 comprises a top auxiliary heater a3-1 and a top auxiliary heater b3-2 which are symmetrically arranged, a side insulating brick 2 is arranged outside the side auxiliary heater 1, a top insulating brick 4 is arranged outside the top auxiliary heater 3, the side auxiliary heater 1 and the top auxiliary heater 3 are connected and enclosed into a hollow inner space, a cooling section platinum body 5 is arranged in the inner space, a filling gap 6 is arranged between the side auxiliary heater 1 and the top auxiliary heater 3 as well as the cooling section platinum body 5, the side auxiliary heater 1, the top auxiliary heater 3, the side insulating brick 2 and the top insulating brick 4 are all made of 1500 ℃ isostatic pressing alumina materials, the content of alumina is more than or equal to 98%, the thermal shock resistance is more than or equal to 20 times, the heat conductivity coefficient is less than 0.8W/m.k, the thickness of the side auxiliary heater 1 is 35 mm-45 mm, the arc length is 350 mm-430 mm, the inner side is of a semi-arc structure, the diameter is 200 mm-250 mm, the thickness of the top auxiliary heater 3 is 30 mm-40 mm, the width is 740 mm-790 mm, one side of the top auxiliary heater 3 close to the platinum body 5 of the cooling section is an effective heating area, the width of the effective heating area is 520 mm-560 mm, the length is 350 mm-430 mm, the width of the effective heating area is the distance between two dotted lines in figure 2, the length is the length represented by the dotted line, the heating wires of the platinum materials are filled in the side auxiliary heater 1 and the top auxiliary heater 3, the diameter of a heating wire is 2.4-3.5 mm, a side auxiliary heater a1-1 and a side auxiliary heater b1-2 are connected in series to form a same heating loop, a top auxiliary heater a3-1 and a top auxiliary heater b3-2 are independent heating loops, the uniformity of the temperature around molten glass is improved, a gap 6 is filled at the same distance between the side auxiliary heater 1 and the top auxiliary heater 3 and a platinum channel 5 of a cooling section, the width of the gap 6 is 10-20 mm, the filling material in the gap 6 is alumina powder, the content of alumina is more than or equal to 99%, the particle size is 0.2-5 mm, the thermal conductivity is 0.5W/m.k-1.0W/m.k, the filling material in the gap 6 is prepared by mixing the alumina powder, water glass and warm water according to the mass ratio of 1 m n, wherein the value of m is 2-4, the temperature control range is 40-50 ℃, and the sintering temperature range is 1100-1300 ℃. The cooling section platinum body 5 has to be provided with excellent heat dissipation performance, so that the heat uniformity in the cooling process of the glass liquid recooling section is ensured, the controllability of the cooling process is ensured, reasonable cooling gradient is ensured, and the temperature of the glass liquid meets the requirement of overflow forming.
The working principle is as follows:
the glass liquid passes through a cooling section platinum body 5, a lateral auxiliary heater 1 and a top auxiliary heater 3 to heat the glass liquid, a lateral insulating brick 2 and a top insulating brick 4 to insulate heat of the glass liquid, the lateral auxiliary heater a1-1 and the lateral auxiliary heater b1-2 which are connected in series to form the same heating loop, the top auxiliary heater a3-1 and the top auxiliary heater b3-2 which are set to be independent heating loops uniformly heat the glass liquid, and meanwhile, a gap 6 is filled to insulate heat of the glass liquid.
Example 1:
an auxiliary heating and heat-insulating system for a substrate glass cooling section channel comprises a side auxiliary heater 1 and a top auxiliary heater 3, wherein the side auxiliary heater 1 comprises a side auxiliary heater a1-1 and a side auxiliary heater b1-2 which are symmetrically arranged, the top auxiliary heater 3 comprises a top auxiliary heater a3-1 and a top auxiliary heater b3-2 which are symmetrically arranged, a side heat-insulating brick 2 is arranged outside the side auxiliary heater 1, a top heat-insulating brick 4 is arranged outside the top auxiliary heater 3, the side auxiliary heater 1 and the top auxiliary heater 3 are connected and enclose a hollow inner space, a cooling section platinum body 5 is arranged in the inner space, a filling gap 6 is arranged between the side auxiliary heater 1 and the cooling section platinum body 5 as well as between the top auxiliary heater 3 and the cooling section platinum body 5, the side auxiliary heater 1, the top auxiliary heater 3, the side insulating brick 2 and the top insulating brick 4 are all made of 1500 ℃ resistant isostatic pressing alumina materials, the content of alumina is more than or equal to 98%, the thermal shock resistance is more than or equal to 20 times, the heat conductivity coefficient is less than 0.8W/m.k, the thickness of the side auxiliary heater 1 is 35mm, the arc length is 350mm, the inner side is a semi-arc structure, the diameter is 200mm, the thickness of the top auxiliary heater 3 is 30mm, the width is 740mm, the width of an effective heating area is 520mm, heater strips which are 350mm in length and are made of platinum materials are arranged in the side auxiliary heater 1 and the top auxiliary heater 3, the diameter of the heater strips is 2.4mm, the side auxiliary heater a1-1 and the side auxiliary heater b1-2 are connected in series to form a same heating loop, the top auxiliary heater a3-1 and the top auxiliary heater b3-2 are independent heating loops, the uniformity of the ambient temperature of the molten glass is improved, the same distance is reserved between the side auxiliary heater 1 and the top auxiliary heater 3 and the cooling section platinum channel 5 to fill the gap 6, the alumina powder, the water glass and the warm water are mixed according to the mass ratio of 1.
The working principle is as follows:
the glass liquid passes through a cooling section platinum body 5, a lateral auxiliary heater 1 and a top auxiliary heater 3 to heat the glass liquid, a lateral insulating brick 2 and a top insulating brick 4 to insulate heat of the glass liquid, the lateral auxiliary heater a1-1 and the lateral auxiliary heater b1-2 which are connected in series to form the same heating loop, the top auxiliary heater a3-1 and the top auxiliary heater b3-2 which are set to be independent heating loops uniformly heat the glass liquid, and meanwhile, a gap 6 is filled to insulate heat of the glass liquid.
Example 2:
an auxiliary heating and heat-insulating system for a substrate glass cooling section channel comprises a side auxiliary heater 1 and a top auxiliary heater 3, wherein the side auxiliary heater 1 comprises a side auxiliary heater a1-1 and a side auxiliary heater b1-2 which are symmetrically arranged, the top auxiliary heater 3 comprises a top auxiliary heater a3-1 and a top auxiliary heater b3-2 which are symmetrically arranged, a side heat-insulating brick 2 is arranged outside the side auxiliary heater 1, a top heat-insulating brick 4 is arranged outside the top auxiliary heater 3, the side auxiliary heater 1 and the top auxiliary heater 3 are connected and enclose a hollow inner space, a cooling section platinum body 5 is arranged in the inner space, a filling gap 6 is arranged between the side auxiliary heater 1 and the cooling section platinum body 5 as well as between the top auxiliary heater 3 and the cooling section platinum body 5, the side auxiliary heater 1, the top auxiliary heater 3, the side insulating brick 2 and the top insulating brick 4 are all made of 1500 ℃ resistant isostatic pressing alumina materials, the content of alumina is more than or equal to 98%, the thermal shock resistance is more than or equal to 20 times, the heat conductivity coefficient is less than 0.8W/m.k, the thickness of the side auxiliary heater 1 is 45mm, the arc length is 430mm, the inner side is a semi-arc structure, the diameter is 250mm, the thickness of the top auxiliary heater 3 is 40mm, the width is 790mm, the width of an effective heating area is 560mm, heater strips embedded with platinum materials are arranged in the side auxiliary heater 1 and the top auxiliary heater 3 with the length of 430mm, the diameter of the heater strips is 3.5mm, the side auxiliary heater a1-1 and the side auxiliary heater b1-2 are connected in series to form a same heating loop, the top auxiliary heater a3-1 and the top auxiliary heater b3-2 are independent heating loops, the uniformity of the ambient temperature of the molten glass is improved, the same distance is reserved between the side auxiliary heater 1 and the top auxiliary heater 3 and the cooling section platinum channel 5 to fill the gap 6, the alumina powder, the water glass and the warm water are mixed according to the mass ratio of 1.
The working principle is as follows:
the glass liquid passes through a cooling section platinum body 5, a lateral auxiliary heater 1 and a top auxiliary heater 3 to heat the glass liquid, a lateral insulating brick 2 and a top insulating brick 4 to insulate heat of the glass liquid, the lateral auxiliary heater a1-1 and the lateral auxiliary heater b1-2 which are connected in series to form the same heating loop, the top auxiliary heater a3-1 and the top auxiliary heater b3-2 which are set to be independent heating loops uniformly heat the glass liquid, and meanwhile, a gap 6 is filled to insulate heat of the glass liquid.
Example 3:
an auxiliary heating and heat-insulating system for a substrate glass cooling section channel comprises a side auxiliary heater 1 and a top auxiliary heater 3, wherein the side auxiliary heater 1 comprises a side auxiliary heater a1-1 and a side auxiliary heater b1-2 which are symmetrically arranged, the top auxiliary heater 3 comprises a top auxiliary heater a3-1 and a top auxiliary heater b3-2 which are symmetrically arranged, a side heat-insulating brick 2 is arranged outside the side auxiliary heater 1, a top heat-insulating brick 4 is arranged outside the top auxiliary heater 3, the side auxiliary heater 1 and the top auxiliary heater 3 are connected and enclose a hollow inner space, a cooling section platinum body 5 is arranged in the inner space, a filling gap 6 is arranged between the side auxiliary heater 1 and the cooling section platinum body 5 as well as between the top auxiliary heater 3 and the cooling section platinum body 5, the materials of the side auxiliary heater 1, the top auxiliary heater 3, the side insulating brick 2 and the top insulating brick 4 are all 1500 ℃ resistant isostatic pressing alumina materials, the content of alumina is more than or equal to 98%, the thermal shock resistance is more than or equal to 20 times, the heat conductivity coefficient is less than 0.8W/m.k, the thickness of the side auxiliary heater 1 is 38mm, the arc length is 380mm, the inner side is a semi-arc structure, the diameter is 230mm, the thickness of the top auxiliary heater 3 is 33mm, the width is 760mm, the width of an effective heating area is 530mm, heating wires filled with platinum materials are arranged in the side auxiliary heater 1 and the top auxiliary heater 3 with the length of 390mm, the diameter of the heating wires is 3mm, the side auxiliary heater a1-1 and the side auxiliary heater b1-2 are connected in series to form a same heating loop, the top auxiliary heater a3-1 and the top auxiliary heater b3-2 are independent heating loops, the uniformity of the temperature around the molten glass is improved, the same distance is reserved between the side auxiliary heater 1 and the top auxiliary heater 3 and the cooling section platinum channel 5 to fill the gap 6, the alumina powder, the water glass and the warm water are mixed according to the mass ratio of 1.
The working principle is as follows:
the glass liquid passes through a cooling section platinum body 5, a lateral auxiliary heater 1 and a top auxiliary heater 3 to heat the glass liquid, a lateral insulating brick 2 and a top insulating brick 4 to insulate heat of the glass liquid, the lateral auxiliary heater a1-1 and the lateral auxiliary heater b1-2 which are connected in series to form the same heating loop, the top auxiliary heater a3-1 and the top auxiliary heater b3-2 which are set to be independent heating loops uniformly heat the glass liquid, and meanwhile, a gap 6 is filled to insulate heat of the glass liquid.
Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments and application fields, and the above-described embodiments are illustrative, instructive, and not restrictive. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications to the disclosed embodiments without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a base plate glass cooling zone passageway auxiliary heating and heat preservation system, its characterized in that, includes lateral part auxiliary heater (1) and top auxiliary heater (3), lateral part auxiliary heater (1) is including lateral part auxiliary heater a (1-1) and lateral part auxiliary heater b (1-2) that the symmetry set up, top auxiliary heater (3) are including top auxiliary heater a (3-1) and top auxiliary heater b (3-2) that the symmetry set up, and lateral part auxiliary heater (1) outside is provided with lateral part insulating brick (2), and top auxiliary heater (3) outside is provided with top insulating brick (4), lateral part auxiliary heater (1) and top auxiliary heater (3) are connected and enclose into a hollow inner space, platinum body (5) have been placed to the inner space, are provided with between lateral part auxiliary heater (1) and top auxiliary heater (3) and the platinum body (5) and fill clearance (6).
2. The channel auxiliary heating and heat-insulating system for the substrate glass cooling section according to claim 1, wherein the side auxiliary heater (1), the top auxiliary heater (3), the side insulating brick (2) and the top insulating brick (4) are all made of 1500 ℃ resistant isostatic pressing alumina, the isostatic pressing alumina has thermal shock resistance of 20 times or more and a thermal conductivity of less than 0.8W/m-k.
3. The channel auxiliary heating and heat-insulating system for the substrate glass cooling section according to claim 1, wherein the inner side of the side auxiliary heater (1) is in a semi-circular arc structure and has a diameter of 200mm to 250mm.
4. The substrate glass cooling section channel auxiliary heating and heat-insulating system according to claim 3, wherein the thickness of the side auxiliary heater (1) is 35mm to 45mm, and the arc length is 350mm to 430mm.
5. The channel-assisted heating and temperature maintenance system for a substrate glass cooling section according to claim 1, wherein the thickness of the top sub-heater (3) is 30mm to 40mm and the width is 740mm to 790mm.
6. The system as claimed in claim 1, wherein heater wires are embedded in the side auxiliary heater (1) and the top auxiliary heater (3), the heater wires are made of platinum, and the diameter of the heater wires is 2.4 mm-3.5 mm.
7. The system for auxiliary heating and maintaining temperature of a channel in a substrate glass cooling section according to claim 6, wherein the side auxiliary heater a (1-1) and the side auxiliary heater b (1-2) are connected in series to form a same heating loop, and the top auxiliary heater a (3-1) and the top auxiliary heater b (3-2) are independent heating loops.
8. The substrate glass cooling section channel auxiliary heating and heat-insulating system according to claim 1, characterized in that the side auxiliary heaters (1) and the top auxiliary heater (3) are spaced from the platinum body (5) at the same distance to fill the gap (6).
9. The substrate glass cooling section channel auxiliary heating and heat preservation system according to claim 1, wherein the width of the filling gap (6) is 10 mm-20 mm, the filling material in the filling gap (6) is alumina powder, the content of alumina is greater than or equal to 99%, the particle size is 0.2 mm-5 mm, and the thermal conductivity is 0.5W/m.k-1.0W/m.k.
10. The substrate glass cooling section channel auxiliary heating and heat preservation system as claimed in claim 1, wherein one side of the top auxiliary heater (3) close to the platinum body (5) is an effective heating area, the width of the effective heating area is 520 mm-560 mm, and the length of the effective heating area is 350 mm-430 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221326580.XU CN217578664U (en) | 2022-05-30 | 2022-05-30 | Auxiliary heating and heat-insulating system for substrate glass cooling section channel |
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| CN202221326580.XU CN217578664U (en) | 2022-05-30 | 2022-05-30 | Auxiliary heating and heat-insulating system for substrate glass cooling section channel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873904A (en) * | 2022-05-30 | 2022-08-09 | 彩虹显示器件股份有限公司 | Auxiliary heating and heat-insulating system and method for substrate glass cooling section channel |
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2022
- 2022-05-30 CN CN202221326580.XU patent/CN217578664U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873904A (en) * | 2022-05-30 | 2022-08-09 | 彩虹显示器件股份有限公司 | Auxiliary heating and heat-insulating system and method for substrate glass cooling section channel |
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