CN202954132U - Guide cylinder for single crystal furnace - Google Patents
Guide cylinder for single crystal furnace Download PDFInfo
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- CN202954132U CN202954132U CN 201220665474 CN201220665474U CN202954132U CN 202954132 U CN202954132 U CN 202954132U CN 201220665474 CN201220665474 CN 201220665474 CN 201220665474 U CN201220665474 U CN 201220665474U CN 202954132 U CN202954132 U CN 202954132U
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- carbon
- carpet veneer
- height
- guide shell
- flow guiding
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Abstract
The utility model discloses a guide cylinder for a single crystal furnace. The guide cylinder for the single crystal furnace comprises an outer guide cylinder, an inner guide cylinder, and a packing carbon felt section, wherein the inner guide cylinder is matched with the outer guide cylinder and forms a containing cavity; radial size of the containing cavity is gradually reduced from bottom to top; the packing carbon felt section is sleeved inside the containing cavity and comprises a plurality of packing carbon felt layers; the heights of the upper ends of the plurality of packing carbon felt layers change in a ladder manner to be adaptive with the shape of the containing cavity. Compared with the guide cylinder at present, a plurality of packing carbon felt layers are sleeved inside the containing cavity, so that heat loss inside a thermal field is effectively reduced; the heat preservation effect of the guide cylinder is enhanced; the longitudinal temperature gradient is increased; good improvement effect is played on warping of a crystal rod; and normal growth of the crystal rod is ensured. By adopting the guide cylinder, the utilization rate of energy is improved by about 1%; the operation power is reduced by about 2KW; electricity consumption of equipment is greatly reduced; and the production cost is also saved.
Description
Technical field
The utility model relates to the silicon solar cell equipment technical field, in particular to a kind of guide shell for single crystal growing furnace.
Background technology
Guide shell is one of graphite device in thermal field, is divided into inside and outside two portions, and centre can add heat preservation carbon felt.Guide shell is positioned at the fusion silicon liquid level top, and its Main Function comprises: orientation guides air-flow; Increase longitudinal temperature gradient, improve pulling rate; Reduce the loss of heat, reduce heat energy loss, reduce service rating.Conventional guide shell is a kind of open-type graphite device of slightly tapered tubular, is one of graphite device indispensable in current thermal field of single crystal furnace, and adding heat preservation carbon felt by section within it is a kind of comparatively common method that promotes the guide shell performance.The carbon felt used at present is generally soft felt, and in order to give full play to the effect of guide shell, its inner carbon felt is The more the better.
In the guide shell of the Shangyu 100 type single crystal growing furnaces of operation, the carbon felt only has two-layer at present, the first carbon carpet veneer and the second carbon carpet veneer are rectangle structure, the first carbon carpet veneer is adjacent to placement along the inner side-wall of external flow guiding cylinder, due to the equal tapered tubular structure of external flow guiding cylinder and inner draft tube, for the sidewall by external flow guiding cylinder all covers, as shown in Figure 1, the top of rectangle carbon felt 30 ' need to be divided into to four parts, respectively cut off the long openning of a 15cm with scissors along opening direction, in order to transfer inner draft tube.The second carbon carpet veneer is close to the inboard placement of the first carbon carpet veneer.Because current carbon felt only has two-layer, service rating is higher but heat insulation effect is poor, cause the thermal field heat loss, longitudinal temperature gradient in thermal field does not reach due difference, bring to the growth of crystal bar unfavorable, becoming, crystal boundary face heat loss is inhomogeneous, causes crystal bar bird caging to occur, affects the normal growth of crystal bar.
The utility model content
The utility model aims to provide a kind of guide shell for single crystal growing furnace, this guide shell high insulating effect.
To achieve these goals, according to an aspect of the present utility model, provide a kind of guide shell for single crystal growing furnace, having comprised: external flow guiding cylinder; Inner draft tube, arrange and be formed with container cavity with external flow guiding cylinder is adaptive, and the radial dimension of container cavity reduces from bottom to top gradually; And fill carbon felt section, and be set in container cavity, comprise a plurality of filling carbon carpet veneers, the stepped variation of upper end height of a plurality of filling carbon carpet veneers is to adapt to the shape of container cavity.
Further, the upper end height of a plurality of filling carbon carpet veneers radially ecto-entad successively decrease successively.
Further, the expansion shape of filling carbon carpet veneer is rectangle.
Further, also comprise carbon coated felt section, carbon coated felt section is coated on the outer side wall of inner draft tube, forms the carbon coated carpet veneer.
Further, the height of carbon coated felt section is consistent with the height of inner draft tube.
Further, the expansion shape of carbon coated carpet veneer is fan-shaped.
Further, the thickness of filling carbon carpet veneer and carbon coated carpet veneer is d, wherein 0.8cm≤d≤1.2cm.
Further, the upper end height of the most inboard filling carbon carpet veneer is lower than half of external flow guiding cylinder height.
Further, fill carbon felt section and comprise: first fills the carbon carpet veneer, is arranged on the inner side-wall of external flow guiding cylinder, and the first height of filling the carbon carpet veneer is 3/5 of external flow guiding cylinder height; Second fills the carbon carpet veneer, is arranged on the first filling carbon carpet veneer, and the second height of filling the carbon carpet veneer is 2/5 of external flow guiding cylinder height; The 3rd fills the carbon carpet veneer, is arranged on the second filling carbon carpet veneer, and the 3rd height of filling the carbon carpet veneer is 3/10 of external flow guiding cylinder height; And the 4th fill the carbon carpet veneer, be arranged on the 3rd and fill on the carbon carpet veneer, the 4th height of filling the carbon carpet veneer is 1/5 of external flow guiding cylinder height.
Further, the first end of filling carbon felt section is mutually concordant with the first end of external flow guiding cylinder.
Apply guide shell of the present utility model, in arranging the container cavity of formation, inner draft tube and external flow guiding cylinder adaptation be arranged with the carbon felt section of filling, fill carbon felt section and comprise a plurality of filling carbon carpet veneers, in order to adapt to the shape of container cavity, the stepped variation of upper end height of a plurality of filling carbon carpet veneers.With respect to current guide shell, fill the carbon carpet veneer owing to being arranged with multilayer in container cavity, the heat effectively reduced in thermal field runs off, strengthened the heat insulation effect of guide shell, increased longitudinal temperature gradient, the distortion of crystal bar has been played to the good effect of improving, guaranteed the normal growth of crystal bar.Adopt guide shell of the present utility model, the utilization ratio of energy has improved approximately 1%, and service rating has reduced about 2KW, greatly reduces the equipment power consumption, has saved production cost.
The accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation after carbon carpet veneer of the prior art launches;
Fig. 2 shows the cross-sectional view that is provided with the external flow guiding cylinder of filling the carbon carpet veneer according to the utility model exemplary embodiments;
Fig. 3 shows the cross-sectional view according to the inner draft tube that is provided with the carbon coated carpet veneer of the utility model exemplary embodiments; And
Fig. 4 shows the deployed configuration schematic diagram according to the carbon coated carpet veneer of the utility model exemplary embodiments.
Embodiment
It should be noted that, in the situation that do not conflict, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
According to a kind of exemplary embodiments of the present utility model, as shown in Figure 2, for the guide shell of single crystal growing furnace, comprise external flow guiding cylinder 10, inner draft tube 20 and fill carbon felt section 30.Wherein inner draft tube 20 is with external flow guiding cylinder 10 establishing settings and be formed with container cavity, and the radial dimension of container cavity reduces from bottom to top gradually; Fill carbon felt section 30 and be set in container cavity, comprise a plurality of filling carbon carpet veneers, the stepped variation of upper end height of a plurality of filling carbon carpet veneers is to adapt to the shape of container cavity.
Be arranged with and fill carbon felt section 30 in inner draft tube 20 and external flow guiding cylinder 10 adaptations arrange the container cavity of formation, fill carbon felt section 30 and comprise a plurality of filling carbon carpet veneers, in order to adapt to the shape of container cavity, the stepped variation of upper end height of a plurality of filling carbon carpet veneers.With respect to current guide shell, fill the carbon carpet veneer owing to being arranged with multilayer in container cavity, the heat effectively reduced in thermal field runs off, strengthened the heat insulation effect of guide shell, increased longitudinal temperature gradient, the distortion of crystal bar has been played to the good effect of improving, guaranteed the normal growth of crystal bar.Adopt guide shell of the present utility model, the utilization ratio of energy has improved approximately 1%, and service rating has reduced about 2KW, greatly reduces the equipment power consumption, has saved production cost.
Preferably, the upper end height of a plurality of filling carbon carpet veneers radially ecto-entad successively decrease successively.Because the radial dimension of the container cavity formed between inner draft tube 20 and external flow guiding cylinder 10 reduces from bottom to top gradually, so this set-up mode can arrange more filling carbon carpet veneer holding the relatively large position of cavity space, like this in whole container cavity with regard to the sheathed filling carbon carpet veneer of having expired, especially the number of plies of filling carbon carpet veneer that is positioned at the guide shell lower end is more, the heat so effectively reduced in thermal field runs off, strengthen the heat insulation effect of guide shell, increased longitudinal temperature gradient.
In order to play better heat insulation effect, according to a kind of exemplary embodiments of the present utility model, as shown in Figure 3, also comprise carbon coated felt section 40, carbon coated felt section 40 is coated on the outer side wall of inner draft tube 20, forms the carbon coated carpet veneer.This carbon coated carpet veneer is close to the outer side wall setting of inner draft tube 20, and wherein the height of carbon coated felt section 30 is consistent with the height of inner draft tube 20.In order to play better heat insulation effect, the upper end height of the most inboard filling carbon carpet veneer is lower than half of external flow guiding cylinder 10 height.
Preferably, as shown in Figure 2, fill carbon felt section 30 and comprise: first fill carbon carpet veneer 31, second fill carbon carpet veneer 32,, the 3rd fill carbon carpet veneer 33 and the 4th and fill carbon carpet veneer 34.Wherein first fill the inner side-wall setting that carbon carpet veneer 31 is close to external flow guiding cylinder 10, the first height of filling carbon carpet veneer 31 is 3/5 of external flow guiding cylinder 10 height; Second fills carbon carpet veneer 32 is close to the first filling carbon carpet veneer 31 settings, and the second height of filling carbon carpet veneer 32 is 2/5 of external flow guiding cylinder 10 height; The 3rd fills carbon carpet veneer 33 is close to the second filling carbon carpet veneer 32 settings, and the 3rd height of filling carbon carpet veneer 33 is 3/10 of external flow guiding cylinder 10 height; The 4th fills carbon carpet veneer 34 is close to the 3rd filling carbon carpet veneer 33 settings, and the 4th height of filling carbon carpet veneer 34 is 1/5 of external flow guiding cylinder 10 height.The shape of the container cavity that the utility model mainly forms according to external flow guiding cylinder 10 and inner draft tube 20 and size and height, the thickness of filling the carbon carpet veneer arrange.Preferably, the thickness of filling carbon carpet veneer and carbon coated carpet veneer is d, wherein 0.8cm≤d≤1.2cm.Carbon carpet veneer in this thickness range has flexibility and ductility preferably.
According to a kind of preferred embodiment of the present utility model, the expansion shape of filling the carbon carpet veneer is rectangle.As shown in Figure 4, the expansion shape of carbon coated carpet veneer is fan-shaped.The first end of filling carbon felt section 30 is mutually concordant with the first end of external flow guiding cylinder 10.After external flow guiding cylinder 10 and inner draft tube 20 coordinates assembling, be positioned at carbon coated carpet veneer on inner draft tube 20 outer side walls and be positioned at filling carbon carpet veneer on external flow guiding cylinder 10 inner side-walls and mutually press together and be full of whole container cavity.
One end of external flow guiding cylinder 10 is provided with draw-in groove, and the first end of filling the carbon carpet veneer can be arranged in draw-in groove, fills like this carbon carpet veneer and just can be securely fixed on the inner side-wall of external flow guiding cylinder 10.In order better each carbon carpet veneer to be close to guide shell inboard or outer side wall setting, also can between the carbon carpet veneer, glue line be set.Glue line is set and can makes to fill between the carbon carpet veneer or fill bond between carbon carpet veneer and carbon coated carpet veneer more firm and tight, be conducive to reduce calorific loss and then preserve preferably heat.
In order when guaranteeing heat insulation effect, to save again carbon felt raw material, do not cause waste, between the adjacent joint of every one deck carbon felt of the present utility model, to just link together, can not there be gap, can not be overlapping, the heat so more effectively reduced in thermal field runs off, and plays heat insulation effect preferably, has increased longitudinal temperature gradient.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Apply guide shell of the present utility model, in arranging the container cavity of formation, inner draft tube and external flow guiding cylinder adaptation be arranged with the carbon felt section of filling, fill carbon felt section and comprise a plurality of filling carbon carpet veneers, in order to adapt to the shape of container cavity, the stepped variation of upper end height of a plurality of filling carbon carpet veneers.With respect to current guide shell, fill the carbon carpet veneer owing to being arranged with multilayer in container cavity, the heat effectively reduced in thermal field runs off, strengthened the heat insulation effect of guide shell, increased longitudinal temperature gradient, the distortion of crystal bar has been played to the good effect of improving, guaranteed the normal growth of crystal bar.Adopt guide shell of the present utility model, the utilization ratio of energy has improved approximately 1%, and service rating has reduced about 2KW, greatly reduces the equipment power consumption, has saved production cost.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. the guide shell for single crystal growing furnace, is characterized in that, comprising:
External flow guiding cylinder (10);
Inner draft tube (20), arrange and be formed with container cavity with described external flow guiding cylinder (10) is adaptive, and the radial dimension of described container cavity reduces from bottom to top gradually; And
Fill carbon felt section (30), be set in described container cavity, comprise a plurality of filling carbon carpet veneers, the stepped variation of upper end height of a plurality of described filling carbon carpet veneers is to adapt to the shape of described container cavity.
2. guide shell according to claim 1, is characterized in that, the upper end height of a plurality of described filling carbon carpet veneers radially ecto-entad successively decreases successively.
3. guide shell according to claim 1, is characterized in that, the expansion shape of described filling carbon carpet veneer is rectangle.
4. guide shell according to claim 1, is characterized in that, also comprises carbon coated felt section (40), and described carbon coated felt section (40) is coated on the outer side wall of described inner draft tube (20), forms the carbon coated carpet veneer.
5. guide shell according to claim 4, is characterized in that, the height of described carbon coated felt section (40) is consistent with the height of described inner draft tube (20).
6. guide shell according to claim 4, is characterized in that, the expansion shape of described carbon coated carpet veneer is fan-shaped.
7. guide shell according to claim 4, is characterized in that, the thickness of described filling carbon carpet veneer and described carbon coated carpet veneer is d, wherein 0.8cm≤d≤1.2cm.
8. guide shell according to claim 1, is characterized in that, the upper end height of the most inboard filling carbon carpet veneer is lower than half of described external flow guiding cylinder (10) height.
9. guide shell according to claim 1, is characterized in that, described filling carbon felt section (30) comprising:
First fills carbon carpet veneer (31), is arranged on the inner side-wall of described external flow guiding cylinder (10), and the described first height of filling carbon carpet veneer (31) is 3/5 of described external flow guiding cylinder (10) height;
Second fills carbon carpet veneer (32), is arranged on described first and fills carbon carpet veneer (31) above, and the described second height of filling carbon carpet veneer (32) is 2/5 of described external flow guiding cylinder (10) height;
The 3rd fills carbon carpet veneer (33), is arranged on described second and fills carbon carpet veneer (32) above, and the described the 3rd height of filling carbon carpet veneer (33) is 3/10 of described external flow guiding cylinder (10) height; And
The 4th fills carbon carpet veneer (34), is arranged on the described the 3rd and fills carbon carpet veneer (33) above, and the described the 4th height of filling carbon carpet veneer (34) is 1/5 of described external flow guiding cylinder (10) height.
10. guide shell according to claim 1, is characterized in that, the first end of described filling carbon felt section (30) is mutually concordant with the first end of described external flow guiding cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665474 CN202954132U (en) | 2012-12-04 | 2012-12-04 | Guide cylinder for single crystal furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665474 CN202954132U (en) | 2012-12-04 | 2012-12-04 | Guide cylinder for single crystal furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202954132U true CN202954132U (en) | 2013-05-29 |
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ID=48459713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220665474 Expired - Fee Related CN202954132U (en) | 2012-12-04 | 2012-12-04 | Guide cylinder for single crystal furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202954132U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088332A (en) * | 2015-09-02 | 2015-11-25 | 哈尔滨奥瑞德光电技术有限公司 | Improved structure of single crystal furnace for growing large-size sapphire |
| CN114134560A (en) * | 2021-11-01 | 2022-03-04 | 宁晋晶兴电子材料有限公司 | Method for filling heat preservation felt into containing cavity of guide cylinder and guide cylinder |
| CN115323479A (en) * | 2022-08-16 | 2022-11-11 | 晶澳太阳能有限公司 | Guide cylinder and preparation method thereof |
| CN116219532A (en) * | 2023-05-08 | 2023-06-06 | 苏州晨晖智能设备有限公司 | Guide cylinder for single crystal furnace, preparation method and single crystal furnace |
-
2012
- 2012-12-04 CN CN 201220665474 patent/CN202954132U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088332A (en) * | 2015-09-02 | 2015-11-25 | 哈尔滨奥瑞德光电技术有限公司 | Improved structure of single crystal furnace for growing large-size sapphire |
| CN114134560A (en) * | 2021-11-01 | 2022-03-04 | 宁晋晶兴电子材料有限公司 | Method for filling heat preservation felt into containing cavity of guide cylinder and guide cylinder |
| CN115323479A (en) * | 2022-08-16 | 2022-11-11 | 晶澳太阳能有限公司 | Guide cylinder and preparation method thereof |
| CN116219532A (en) * | 2023-05-08 | 2023-06-06 | 苏州晨晖智能设备有限公司 | Guide cylinder for single crystal furnace, preparation method and single crystal furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20151204 |
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| EXPY | Termination of patent right or utility model |