CN219930327U - Heat insulation ring for single crystal furnace and single crystal furnace - Google Patents
Heat insulation ring for single crystal furnace and single crystal furnace Download PDFInfo
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- CN219930327U CN219930327U CN202321578440.6U CN202321578440U CN219930327U CN 219930327 U CN219930327 U CN 219930327U CN 202321578440 U CN202321578440 U CN 202321578440U CN 219930327 U CN219930327 U CN 219930327U
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- heat insulation
- heat
- single crystal
- main body
- crystal furnace
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- 238000009413 insulation Methods 0.000 title claims abstract description 135
- 239000013078 crystal Substances 0.000 title claims abstract description 51
- 239000002131 composite material Substances 0.000 claims description 5
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 claims description 4
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 239000011810 insulating material Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 10
- 238000004321 preservation Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Abstract
The utility model discloses a heat insulation ring for a single crystal furnace, which comprises: the main body is in a circular ring configuration, and a plurality of heat insulation sections are arranged on the main body in a segmented manner in the circumferential direction of the main body; the cover plate is buckled and installed on the heat insulation section and is matched with the main body in a clamping way, and a heat insulation cavity is formed between any heat insulation section and the cover plate; the heat-insulating inner core is of a circular arc section structure made of heat-insulating materials, and a heat-insulating inner core is arranged in any heat-insulating cavity in a pressure equalizing mode. According to the heat-insulating ring for the single crystal furnace, the heat-insulating inner cores are pressed through the cover plate and the heat-insulating sections on the main body, and the main body and the cover plate which are connected in a clamping mode are easy to detach, so that the heat-insulating inner cores with reduced heat-insulating capacity can be replaced conveniently, and the cost of consumable materials and maintenance replacement is reduced. The utility model also provides a single crystal furnace.
Description
Technical Field
The utility model relates to the technical field of single crystal furnace thermal field equipment, in particular to a heat insulation ring for a single crystal furnace and the single crystal furnace.
Background
Nowadays, with the continuous development of the solar monocrystalline silicon industry, the yield and purity requirements of monocrystalline silicon are increased, so that the monocrystalline furnace equipment for preparing the monocrystalline silicon is also continuously updated and improved, in the preparation process of the monocrystalline silicon, interstitial oxygen is a main impurity affecting the purity of the monocrystalline silicon, the impurity is from a crucible to pollute the molten silicon, and oxygen precipitation in various forms can be formed in the high-temperature annealing process to affect the internal structure of the monocrystalline silicon, so that the subsequent performance of the monocrystalline silicon is poor.
Therefore, how to reduce the production cost while ensuring the production purity of monocrystalline silicon is a problem to be solved by those skilled in the art.
Disclosure of Invention
Accordingly, the present utility model is directed to a heat-insulating ring for a single crystal furnace, which can reduce the production cost while ensuring the purity of the single crystal silicon.
Another object of the present utility model is to provide a single crystal furnace comprising the above-mentioned heat insulating ring for single crystal furnace.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a heat insulating ring for a single crystal furnace, comprising:
the main body is in a circular ring configuration, and a plurality of heat insulation sections are arranged on the main body in a segmented manner in the circumferential direction of the main body;
the cover plate is buckled and installed on the heat insulation section, the cover plate is matched with the main body in a clamping way, and a heat insulation cavity is formed between any heat insulation section and the cover plate;
the heat-insulating inner core is of a circular arc section structure made of heat-insulating materials, and one heat-insulating inner core is arranged in any heat-insulating cavity in a pressure equalizing mode.
Preferably, in the heat insulation ring for a single crystal furnace, a plurality of heat insulation cavities are formed between the cover plate and a single heat insulation section when the cover plate is buckled on the main body, and the plurality of heat insulation cavities are stacked along the thickness direction of the main body.
Preferably, in the heat insulation ring for a single crystal furnace, the main body is in cantilever clamping connection with the cover plate, a protruding portion is arranged on the cover plate, and a concave portion in clamping fit with the protruding portion is arranged on the main body.
Preferably, in the heat insulation ring for the single crystal furnace, a plurality of heat insulation sections are uniformly arranged along the circumferential direction of the main body, and the interval arc lengths of any two adjacent heat insulation sections are equal.
Preferably, in the heat insulation ring for the single crystal furnace, the heat insulation sections have the same size.
Preferably, in the heat insulation ring for the single crystal furnace, the cover plates are arranged in a segmented mode and correspond to the heat insulation segments one by one.
Preferably, in the heat insulation ring for the single crystal furnace, the heat insulation inner core is installed in the heat insulation cavity in an interference mode.
Preferably, in the heat insulation ring for the single crystal furnace, the heat insulation inner core is carbon felt.
Preferably, in the heat insulation ring for a single crystal furnace, the main body and the cover plate are both made of carbon-carbon composite materials.
The single crystal furnace comprises a middle heat preservation cylinder, a bottom heat preservation cylinder and the heat insulation ring for the single crystal furnace, wherein the heat insulation ring for the single crystal furnace is arranged between the middle heat preservation cylinder and the bottom heat preservation cylinder.
According to the technical scheme, the heat insulation ring for the single crystal furnace comprises a main body, a cover plate and a heat insulation inner core, wherein the main body is in a circular ring configuration, a plurality of heat insulation sections are arranged on the main body in a circumferential direction in a sectionalized mode, the cover plate is buckled and installed on the heat insulation sections, a heat insulation cavity can be formed between the heat insulation section of any section and the cover plate relatively, the cover plate is matched with the main body in a clamping mode so as to facilitate disassembly and installation of the cover plate, the heat insulation inner core is in a circular arc section structure made of heat insulation materials, the circular arc radius of the heat insulation inner core is identical to that of the heat insulation section, meanwhile, the heat insulation inner core in the circular arc structure is convenient to cut in length so as to adapt to heat insulation sections with different arc lengths, the heat insulation inner core is used as heat insulation consumable in the heat insulation ring, compared with the heat insulation ring, the loss cost of integral failure is low, and meanwhile, the cover plate is convenient to disassemble so that the heat insulation inner core is replaced in a bolt and other fixing mode. According to the heat-insulating ring for the single crystal furnace, the plurality of heat-insulating sections are arranged in the circumferential direction of the circular structural main body in a segmented mode, meanwhile, the heat-insulating cavities are formed by the cover plates which are matched with the main body in a clamping mode, the heat-insulating inner cores are arranged in each heat-insulating cavity to serve as consumable materials of the heat-insulating ring, the heat-insulating inner cores are replaced to enable the heat-insulating ring to keep heat-insulating effect, production purity of single crystals is guaranteed, consumption of the pure heat-insulating inner cores is low compared with failure cost of the heat-insulating ring, the clamping structure of the cover plates is easy to detach, and replacement cost of the heat-insulating inner cores is reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a heat insulating ring for a single crystal furnace according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a detail view of section A of FIG. 2;
FIG. 4 is a schematic diagram of a main structure according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of a cover plate according to an embodiment of the present utility model;
wherein 10 is the main part, 110 is the thermal-insulated section, 20 is the apron, 30 is thermal-insulated inner core.
Detailed Description
The core of the utility model is to disclose a heat insulation ring for a single crystal furnace, so as to reduce the production cost while ensuring the production purity of single crystal silicon.
Another object of the present utility model is to provide a single crystal furnace comprising the above-mentioned heat insulating ring for single crystal furnace.
Hereinafter, embodiments will be described with reference to the drawings. Furthermore, the embodiments shown below do not limit the summary of the utility model described in the claims. The whole contents of the constitution shown in the following examples are not limited to the solution of the utility model described in the claims.
As shown in fig. 1, fig. 2 and fig. 3, the heat insulation ring for the single crystal furnace provided by the embodiment of the utility model comprises a main body 10, a cover plate 20 and a heat insulation inner core 30, wherein the main body 10 is in a circular ring configuration, the main body 10 is provided with a plurality of heat insulation sections 110 in a circumferential direction in a sectionalized manner, the cover plate 20 is buckled and installed on the heat insulation sections 110, a heat insulation cavity can be relatively formed between the heat insulation sections 110 of any section and the cover plate 20, the cover plate 20 is in clamping fit with the main body 10 so as to facilitate the disassembly and the installation of the cover plate 20, the heat insulation inner core 30 is in a circular arc section structure made of heat insulation materials, the circular arc radius of the heat insulation inner core 30 is identical with the circular arc radius of the heat insulation sections 110, meanwhile, the heat insulation inner core 30 in the circular arc structure is convenient to cut in length so as to adapt to the heat insulation sections 110 with different arc lengths, the heat insulation inner core 30 is arranged in any section heat insulation cavity in a pressure equalizing manner, compared with heat insulation consumable materials in the heat insulation ring, the whole heat insulation ring has low loss cost, meanwhile, the cover plate 20 and the main body 10 are in clamping fit so that the cover plate 20 is convenient for the disassembly and the heat insulation inner core 20 are convenient for the disassembly and the heat insulation inner core 30, the replacement is in comparison with the heat insulation inner core 30, and the replacement cost is reduced in a fixing mode.
According to the heat insulation ring for the single crystal furnace, provided by the embodiment of the utility model, the plurality of heat insulation sections 110 are arranged in the circumferential direction of the circular ring structural main body 10 in a segmented manner, meanwhile, the cover plate 20 matched with the main body 10 in a clamping manner is used for forming a heat insulation cavity with the heat insulation sections 110, the heat insulation inner cores 30 are arranged in each heat insulation cavity, the heat insulation inner cores 30 are used as consumable materials of the heat insulation ring, the heat insulation effect of the heat insulation ring is kept by replacing the heat insulation inner cores 30, so that the production purity of single crystals is ensured, the consumption of the pure heat insulation inner cores 30 is lower than the failure cost of the heat insulation ring, the clamping structure of the cover plate 20 is easy to detach, and the replacement cost of the heat insulation inner cores 30 is also reduced.
Further, in order to improve the heat insulation effect of the heat insulation ring provided by the embodiment of the utility model, in a specific embodiment of the utility model, when the cover plate 20 is buckled on the main body 10, a plurality of heat insulation cavities are formed between the cover plate 20 and the single heat insulation section 110, and the plurality of heat insulation cavities are stacked along the thickness direction of the main body 10, the heat insulation section 110 on the main body 10 can be designed into a multi-layer structure by realizing the structure, each layer of structure is independently opened and closed, the cover plate 20 can also be designed into a multi-layer structure, the cover plate 20 is provided with a plurality of cavities with independent openings, meanwhile, the heat insulation inner cores 30 are arranged in the plurality of heat insulation cavities in a stacked manner, and the heat insulation performance of the heat insulation ring is enhanced by the composite heat insulation effect of the multi-layer heat insulation inner cores 30.
Further, in a preferred embodiment of the present utility model, the clamping manner between the main body 10 and the cover 20 is a cantilever type, that is, a protruding portion is provided on the cover 20, a recess portion is provided on the main body 10 and is in clamping fit with the protruding portion, the cover 20 can be tightly pressed towards the main body 10 to clamp the cover 20 and the main body 10 through the protruding portion and the recess portion, and meanwhile, when the cover 20 needs to be disassembled, the cover 20 only needs to be moved to bend the protruding portion in a direction away from the recess portion, so that the cover 20 and the main body 10 can be conveniently separated, and the cover 20 needs to be disassembled.
Further, as shown in fig. 4, in an embodiment of the present utility model, a plurality of heat insulation sections 110 are uniformly arranged along the circumferential direction of the main body 10, that is, the arc lengths of the intervals between any two adjacent heat insulation sections 110 are equal, and the uniformly arranged heat insulation sections 110 can make the amount of the heat insulation cores 30 of each region in the circumferential direction of the heat insulation ring the same, so that the heat insulation ring can uniformly insulate the heat of each region in the circumferential direction.
On the basis of the above embodiment, it is preferable that the sizes of the plurality of heat insulation sections 110 are the same, so that the heat insulation inner cores 30 correspondingly arranged in the heat insulation sections 110 are the same in size, and only one size of heat insulation inner core 30 is required to be selected when the heat insulation inner core 30 on a single heat insulation ring is replaced, thereby reducing material cost and maintenance cost.
Further, in the heat insulation ring for a single crystal furnace provided by the embodiment of the utility model, the cover plate 20 may be designed as an annular whole corresponding to the main body 10, or may be designed as a structure with multiple sections corresponding to the heat insulation sections 110 one by one as shown in fig. 5, and it should be noted that, the one-to-one correspondence specifically means that the number of sections of the cover plate 20 is equal to the number of the heat insulation sections 110, the single section of the cover plate 20 is buckled with the single heat insulation section 110 in a size matching manner, preferably, the cover plate 20 is designed as a structure with multiple sections corresponding to the heat insulation sections 110 one by one in a segmented manner, so that each heat insulation cavity can be independently overhauled, and the structure of other positions is not required to be disassembled when the heat insulation inner cores 30 in the single heat insulation cavity are replaced, thereby improving the replacement efficiency.
Further, in an embodiment of the present utility model, the heat-insulating inner core 30 is installed in the heat-insulating cavity in an interference manner, that is, the thickness dimension of the heat-insulating inner core 30 is slightly larger than the thickness of the heat-insulating cavity, and the heat-insulating inner core 30 is pressed into the heat-insulating cavity by the cover plate 20 to completely fill the heat-insulating cavity, so that heat penetration is avoided, and the heat-insulating effect of the heat-insulating ring is ensured.
Further, in one embodiment of the present utility model, the insulating core 30 is a carbon felt made of carbon fibers.
Further, in an embodiment of the present utility model, the main body 10 and the cover plate 20 are made of carbon-carbon composite materials, and the carbon-carbon composite materials have the characteristics of good thermal conductivity and high temperature resistance, so that the main body 10 and the cover plate 20 are not easy to be damaged and fail due to high temperature in a thermal field, and only the heat insulation inner core 30 needs to be replaced regularly, thereby reducing the production cost.
The utility model also provides a single crystal furnace, which comprises the middle heat preservation cylinder, the bottom heat preservation cylinder and the heat insulation ring for the single crystal furnace provided by any embodiment, wherein the heat insulation ring for the single crystal furnace is arranged between the middle heat preservation cylinder and the bottom heat preservation cylinder to isolate heat of the middle heat preservation cylinder.
The terms "medium" and "bottom" and the like in the description and the claims of the utility model and in the above-described drawings are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to the listed steps or elements but may include steps or elements not expressly listed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A heat insulating ring for a single crystal furnace, comprising:
the main body (10) is in a circular ring configuration, and a plurality of heat insulation sections (110) are arranged on the main body (10) in a segmented mode in the circumferential direction;
the cover plate (20) is buckled and installed on the heat insulation section (110), the cover plate (20) is matched with the main body (10) in a clamping way, and a heat insulation cavity is formed between any heat insulation section (110) and the cover plate (20);
the heat insulation inner core (30) is of a circular arc section structure made of heat insulation materials, and one heat insulation inner core (30) is arranged in any heat insulation cavity in a pressure equalizing mode.
2. The heat insulation ring for a single crystal furnace according to claim 1, wherein a plurality of heat insulation cavities are formed between the cover plate (20) and a single heat insulation section (110) when the cover plate is buckled on the main body (10), and the plurality of heat insulation cavities are stacked along the thickness direction of the main body (10).
3. The heat insulation ring for a single crystal furnace according to claim 1, wherein cantilever type clamping connection is arranged between the main body (10) and the cover plate (20), a protruding part is arranged on the cover plate (20), and a concave part which is in clamping fit with the protruding part is arranged on the main body (10).
4. The heat insulation ring for a single crystal furnace according to claim 1, wherein a plurality of heat insulation sections (110) are uniformly arranged along the circumferential direction of the main body (10), and the arc lengths of the intervals between any two adjacent heat insulation sections (110) are equal.
5. The heat insulating ring for a single crystal furnace according to claim 4, wherein the heat insulating sections (110) are of the same size.
6. The heat insulation ring for a single crystal furnace according to claim 5, wherein the cover plates (20) are arranged in segments and are in one-to-one correspondence with the heat insulation segments (110).
7. The insulating ring for a single crystal furnace according to claim 1, wherein the insulating core (30) is interference fitted within the insulating cavity.
8. The insulating ring for single crystal furnaces according to claim 1, characterised in that said insulating core (30) is a carbon felt.
9. The heat insulation ring for a single crystal furnace according to claim 1, wherein the main body (10) and the cover plate (20) are both made of carbon-carbon composite materials.
10. A single crystal furnace, characterized by comprising a middle heat-preserving cylinder, a bottom heat-preserving cylinder and the heat-insulating ring for the single crystal furnace according to any one of claims 1 to 9, wherein the heat-insulating ring for the single crystal furnace is arranged between the middle heat-preserving cylinder and the bottom heat-preserving cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321578440.6U CN219930327U (en) | 2023-06-20 | 2023-06-20 | Heat insulation ring for single crystal furnace and single crystal furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321578440.6U CN219930327U (en) | 2023-06-20 | 2023-06-20 | Heat insulation ring for single crystal furnace and single crystal furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219930327U true CN219930327U (en) | 2023-10-31 |
Family
ID=88502398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321578440.6U Active CN219930327U (en) | 2023-06-20 | 2023-06-20 | Heat insulation ring for single crystal furnace and single crystal furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219930327U (en) |
-
2023
- 2023-06-20 CN CN202321578440.6U patent/CN219930327U/en active Active
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