CN217026149U - High-heat-preservation-performance thermal field heat preservation cylinder of single crystal furnace - Google Patents
High-heat-preservation-performance thermal field heat preservation cylinder of single crystal furnace Download PDFInfo
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- CN217026149U CN217026149U CN202220835070.9U CN202220835070U CN217026149U CN 217026149 U CN217026149 U CN 217026149U CN 202220835070 U CN202220835070 U CN 202220835070U CN 217026149 U CN217026149 U CN 217026149U
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Abstract
The utility model discloses a high-heat-preservation single crystal furnace thermal field heat preservation cylinder which comprises a furnace body (1), wherein a top heat preservation layer (2), an upper heat preservation barrel (3), a middle heat preservation barrel (4) and a lower heat preservation barrel (5) which are matched with each other are arranged in the furnace body (1), the upper heat preservation barrel (3), the middle heat preservation barrel (4) and the lower heat preservation barrel (5) are all of circular ring structures, a circle of circular ring-shaped stepped groove (3 a) is formed in the inner side of the upper edge of the upper heat preservation barrel (3), the lower surface of the top heat preservation layer (2) is embedded in the stepped groove (3 a), a first cavity (3 b) is formed in the barrel body of the upper heat preservation barrel (3), and the first cavity (3 b) is arranged around the barrel body in a circle; the middle heat-insulating barrel (4) and the lower heat-insulating barrel (5) are respectively provided with a second cavity (4 a), and the second cavities (4 a) are arranged around the barrel in a circle. The utility model has the advantages of improving the heat preservation effect, reducing the heat required by heating the single crystal furnace, reducing the power consumption of the single crystal furnace and reducing the blow-in cost.
Description
Technical Field
The utility model relates to the technical field of photovoltaic manufacturing, in particular to a high-heat-preservation-performance thermal field heat preservation cylinder of a single crystal furnace.
Background
At the present stage, the thermal field of the single crystal furnace generally comprises a bottom heat preservation part, a lower heat preservation cylinder, a middle heat preservation cylinder, an upper heat preservation cylinder and a top heat preservation part of the single crystal furnace. The upper, middle and lower heat-insulating cylinders are generally made of graphite or carbon-carbon materials and are generally in a solid ring shape. However, in order to achieve the required heat preservation effect during use, the graphite carbon felt is wrapped outside the heat preservation barrel for use, the heat transfer mode of the heat preservation barrel and the graphite carbon felt is heat conduction, heat in the furnace is outwards transferred to the graphite carbon felt through the wall of the heat preservation barrel, the heat preservation effect is poor, the heat required by heating of the single crystal furnace is too high, and then the power consumption and the blow-in cost of the single crystal furnace can be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem of poor heat preservation effect of the existing heat preservation cylinder, and provides a heat preservation cylinder with high heat preservation performance for a thermal field of a single crystal furnace, which can improve the heat preservation effect, reduce the heat required by heating of the single crystal furnace, reduce the power consumption of the single crystal furnace and reduce the blow-in cost.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a high-heat-preservation single crystal furnace thermal field heat preservation cylinder comprises a furnace body, wherein a top heat preservation layer, an upper heat preservation cylinder, a middle heat preservation cylinder, a lower heat preservation cylinder, a bottom heat preservation layer, a bottom heater and a main heater which are matched with each other are arranged in the furnace body;
the upper heat-insulating barrel, the middle heat-insulating barrel and the lower heat-insulating barrel are all of circular ring structures, a circle of circular ring-shaped stepped groove is formed in the inner side of the upper edge of the upper heat-insulating barrel, and the lower surface of the top heat-insulating layer is embedded in the stepped groove to ensure that the upper heat-insulating barrel, the middle heat-insulating barrel and the lower heat-insulating barrel are tightly connected;
a first cavity is arranged in the barrel body of the upper heat-insulating barrel and surrounds the barrel body in a circle;
and second cavities are arranged in the barrel bodies of the middle heat-insulating barrel and the lower heat-insulating barrel, and are arranged around the barrel bodies in a circle.
Further, the axis of ladder groove and the axis of last heat-preserving container coincide each other.
Further, the ratio of the width of the stepped groove to the thickness of the upper heat-insulating barrel is 1: 3.
Furthermore, the first cavity is an annular cavity, and the axis of the first cavity is overlapped with the axis of the upper heat-preserving barrel.
Further, the thickness of the first cavity is half of the thickness of the barrel body of the upper heat-insulating barrel.
Furthermore, the second cavity is a circular cavity, and the axis of the second cavity is respectively overlapped with the axis of the medium-temperature insulating barrel or the lower insulating barrel.
Further, the thickness of the second cavity is half of the thickness of the middle heat-insulating barrel or the barrel body of the lower heat-insulating barrel.
According to the technical scheme, the original solid heat-preserving cylinder is improved into a hollow design, so that the heat transfer mode of the heat-preserving cylinder and the graphite carbon felt is changed from original heat conduction to heat radiation transfer, a better heat-preserving effect is achieved, the heat required by heating of the single crystal furnace is reduced, the power consumption of the single crystal furnace is reduced, and the blow-in cost is reduced.
Drawings
FIG. 1 is an overall structure diagram of a thermal field insulating cylinder of a high insulating property single crystal furnace according to the present invention;
FIG. 2 is a half-section structural view of the upper heat-insulating barrel of the present invention;
FIG. 3 is a half-section structural view of the middle heat-insulating barrel and the lower heat-insulating barrel of the utility model.
Detailed Description
Example 1
In order to make the present invention more clear, the following further describes a thermal field insulating cylinder of a single crystal furnace with high thermal insulation property in conjunction with the attached drawings, and the specific embodiments described herein are only used for explaining the present invention and are not used to limit the present invention.
Referring to fig. 1, a single crystal growing furnace thermal field heat preservation section of thick bamboo of high heat insulating ability, including furnace body 1, be equipped with top heat preservation 2, last heat preservation bucket 3, well heat preservation bucket 4, heat preservation bucket 5, bottom heat preservation 6, bottom heater 7 and the main heater 8 of mutually supporting in the furnace body 1, its characterized in that:
referring to fig. 2 and 3, the upper heat-preserving container 3, the middle heat-preserving container 4 and the lower heat-preserving container 5 are all of circular ring structures;
referring to fig. 2, a circle of annular stepped groove 3a is arranged on the inner side of the upper edge of the upper heat-insulating barrel 3, the axis of the stepped groove 3a is overlapped with the axis of the upper heat-insulating barrel 3, the ratio of the width of the stepped groove 3a to the thickness of the upper heat-insulating barrel 3 is 1:3, and the lower surface of the top heat-insulating layer 2 is embedded in the stepped groove 3a to ensure the tight connection between the two;
a first cavity 3b is also arranged in the barrel body of the upper heat-insulating barrel 3, the first cavity 3b is a circular cavity, the axis of the first cavity is superposed with the axis of the upper heat-insulating barrel 3, and the thickness of the first cavity 3b is one third of that of the barrel body of the upper heat-insulating barrel 3;
referring to fig. 3, the second cavities 4a are respectively arranged in the barrel bodies of the middle heat-insulating barrel 4 and the lower heat-insulating barrel 5, the second cavities 4a are annular cavities, the axes of the second cavities 4a are respectively overlapped with the axes of the middle heat-insulating barrel 4 or the lower heat-insulating barrel 5, and the thickness of the second cavities 4a is one third of the thickness of the barrel body of the middle heat-insulating barrel 4 or the lower heat-insulating barrel 5.
The device has simple structure and low manufacturing cost, adopts the heat-preserving barrel structure with hollow design, changes the heat transfer mode of the heat-preserving barrel and the graphite carbon felt into heat radiation transfer, can achieve better heat-preserving effect, reduces the heat required by heating the single crystal furnace, reduces the power consumption of the single crystal furnace and reduces the blow-in cost.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a single crystal growing furnace thermal field heat preservation section of thick bamboo of high heat insulating ability, includes furnace body (1), is equipped with top heat preservation (2) of mutually supporting in furnace body (1), goes up heat-preserving container (3), well heat-preserving container (4), heat-preserving container (5), bottom heat preservation (6), bottom heater (7) and main heater (8), its characterized in that:
the upper heat-insulating barrel (3), the middle heat-insulating barrel (4) and the lower heat-insulating barrel (5) are all of circular ring structures, a circle of circular ring-shaped stepped groove (3 a) is formed in the inner side of the upper edge of the upper heat-insulating barrel (3), the lower surface of the top heat-insulating layer (2) is embedded in the stepped groove (3 a), a first cavity (3 b) is formed in the barrel body of the upper heat-insulating barrel (3), and the first cavity (3 b) is arranged around the barrel body in a circle;
the middle heat-insulating barrel (4) and the lower heat-insulating barrel (5) are respectively provided with a second cavity (4 a), and the second cavities (4 a) are arranged around the barrel in a circle.
2. The high-heat-retaining-property single crystal furnace thermal field heat-retaining cylinder according to claim 1, characterized in that:
the axis of the stepped groove (3 a) is overlapped with the axis of the upper heat-insulating barrel (3).
3. The high-heat-retaining-property single crystal furnace thermal field holding cylinder according to claim 1 or 2, characterized in that:
the ratio of the width of the stepped groove (3 a) to the thickness of the upper heat-insulating barrel (3) is 1: 3.
4. The high-heat-retaining-ability single crystal furnace thermal field holding cylinder according to claim 1 or 2, characterized in that:
the first cavity (3 b) is a circular cavity, and the axis of the first cavity is overlapped with the axis of the upper heat-insulating barrel (3).
5. The high-heat-retaining-property single crystal furnace thermal field holding cylinder according to claim 1 or 2, characterized in that:
the thickness of the first cavity (3 b) is half of the thickness of the barrel body of the upper heat-insulating barrel (3).
6. The high-heat-retaining-ability single crystal furnace thermal field holding cylinder according to claim 1 or 2, characterized in that:
the second cavity (4 a) is a circular cavity, and the axis of the second cavity is respectively overlapped with the axis of the medium-temperature insulating barrel (4) or the axis of the lower insulating barrel (5).
7. The high-heat-retaining-property single crystal furnace thermal field holding cylinder according to claim 1 or 2, characterized in that:
the thickness of the second cavity (4 a) is half of the thickness of the barrel body of the medium-temperature insulation barrel (4) or the lower insulation barrel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220835070.9U CN217026149U (en) | 2022-04-12 | 2022-04-12 | High-heat-preservation-performance thermal field heat preservation cylinder of single crystal furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220835070.9U CN217026149U (en) | 2022-04-12 | 2022-04-12 | High-heat-preservation-performance thermal field heat preservation cylinder of single crystal furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217026149U true CN217026149U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220835070.9U Active CN217026149U (en) | 2022-04-12 | 2022-04-12 | High-heat-preservation-performance thermal field heat preservation cylinder of single crystal furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217026149U (en) |
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2022
- 2022-04-12 CN CN202220835070.9U patent/CN217026149U/en active Active
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