CN204151452U - A kind of blowing out refrigerating unit of single crystal growing furnace - Google Patents
A kind of blowing out refrigerating unit of single crystal growing furnace Download PDFInfo
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- CN204151452U CN204151452U CN201420573455.8U CN201420573455U CN204151452U CN 204151452 U CN204151452 U CN 204151452U CN 201420573455 U CN201420573455 U CN 201420573455U CN 204151452 U CN204151452 U CN 204151452U
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Abstract
The blowing out refrigerating unit of a kind of single crystal growing furnace disclosed in the utility model, comprise the bell of boring, bell is respectively arranged with water inlet pipe, rising pipe and argon inlet pipe, water inlet pipe is provided with water inlet pipe valve, rising pipe is provided with rising pipe valve, argon inlet pipe is provided with argon gas valve, the lower surface of bell is connected with cools body by two aqueducts, the bottom of cools body is connected with contact cooling body, and water inlet pipe, bell, aqueduct, cools body and rising pipe are communicated with formation cooling recirculation system successively.The blowing out refrigerating unit of a kind of single crystal growing furnace of the present utility model solves existing single crystal growing furnace due to blowing out cooling rate and makes blowing out tear stove longer shortcoming consuming time open slowly, which shorten blowing out to cool the time, shorten single crystal growing furnace to run man-hour, improve plant factor, decrease the hot situation of tearing the reduction in work-ing life that stove causes open of graphite piece, reduce production cost.
Description
Technical field
The utility model belongs to silicon single crystal manufacturing technology field, is specifically related to a kind of blowing out refrigerating unit of single crystal growing furnace.
Background technology
In photovoltaic industry field, photovoltaic cell is the power generation system unit made based on silicon materials, and silicon single crystal is as the most important a kind of base material of photovoltaic cell, the cost of current monocrystalline solar electrical energy generation is greatly about 1 yuan/degree, the cost of solar electrical energy generation mainly solar battery sheet makes the cost of processing, power station build up after overhead charges be quite low.Reduce the cost of solar electrical energy generation, or the efficiency of conversion of monocrystalline solar cells sheet will be improved, or the tooling cost of cell piece will be reduced.The commercial batteries efficiency of present large-scale production reaches 16%-18%, and almost without room for improvement, the unit cost that reduce monocrystalline solar electrical energy generation will be set about from solar battery sheet.The cost of the cell piece base material silicon chip of monocrystalline solar electrical energy generation accounts for about 70% of cell piece total cost, and the crystal pulling cost of base material monocrystalline silicon piece accounts for 70% of whole monocrystalline silicon piece production cost.So the cost of solar electrical energy generation will be reduced, solar cell base production crystal pulling in early stage cost will be reduced.
The growth method of present silicon single crystal adopts vertical pulling method to produce in single crystal growing furnace mostly.The single crystal growing furnace that monocrystalline silicon production uses is the pressurized vessel of a sealing, many thermal field components and some insulation quilts is comprised in stove, thermal field component comprises the parts such as heat shielding, upper insulation, middle insulation, lower insulation, well heater, crucible, crucible tray, pressure pin, river bottom protection pressing plate, end felt, these thermal field components have been combined into again the heat insulation system of a set of similar Bird's Nest in the single crystal growing furnace of sealing, high insulating effect, but cooling rate is slow.The technical process utilizing single crystal growing furnace to carry out the production of vertical pulling method monocrystalline comprises shove charge, charging, conjunction stove, finds time, melt, seeding, necking down, shouldering, isometrical, ending, blowing out, tear the techniques such as stove open, above-mentioned a whole set of production technique is consuming time large about 75 hours, cooling rate due to single crystal growing furnace makes present furnace stopping process need 6 hours slowly, consuming time longer, and tear the words of stove in advance open due to the too high thermal field component that can damage in single crystal growing furnace of temperature, increase production cost.
Utility model content
The purpose of this utility model is the blowing out refrigerating unit providing a kind of single crystal growing furnace, solves the shortcoming of slow, the consuming time length of cooling rate after existing single crystal growing furnace blowing out.
The technical scheme that the utility model adopts is: a kind of blowing out refrigerating unit of single crystal growing furnace, comprise the bell of boring, bell is respectively arranged with water inlet pipe, rising pipe and argon inlet pipe, water inlet pipe is provided with water inlet pipe valve, rising pipe is provided with rising pipe valve, argon inlet pipe is provided with argon gas valve, the lower surface of bell is connected with cools body by two aqueducts, the bottom of cools body is connected with contact cooling body, and water inlet pipe, bell, aqueduct, cools body and rising pipe are communicated with formation cooling recirculation system successively.
Feature of the present utility model is also,
Cools body is high temperature resistant material and its underpart is connected by contact cooling body union lever with contact cooling body.
The lower surface of bell is provided with sealing-ring.
Bell is provided with several for being suspended on the suspension ring on travelling bogie.
The quantity of suspension ring is 3.
The blowing out refrigerating unit of a kind of single crystal growing furnace of the present utility model solves existing single crystal growing furnace due to blowing out cooling rate and makes blowing out tear stove process longer shortcoming consuming time open slowly.The blowing out refrigerating unit of a kind of single crystal growing furnace of the present utility model has the following advantages:
1, owing to shortening blowing out temperature fall time, make blowing out tear the stove time open and greatly reduce, crystal bar can also be retracted in process of cooling, thus shorten single crystal growing furnace and run man-hour, improve plant factor;
2, because blowing out needs the cooling of stream argon, along with single crystal growing furnace temperature fall time reduces, the argon gas consumption for cooling also being greatly reduced, reducing production cost;
3, decrease that various graphite piece is hot tears situation about reducing in work-ing life that stove causes open, add graphite piece work-ing life, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the blowing out refrigerating unit of a kind of single crystal growing furnace of the present utility model;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the three-dimensional structure diagram of the blowing out refrigerating unit of a kind of single crystal growing furnace of the present utility model;
Fig. 4 is the packaging assembly schematic diagram of the blowing out refrigerating unit of a kind of single crystal growing furnace of the present utility model.
In figure, 1. water inlet pipe, 2. water inlet pipe valve, 3. rising pipe, 4. rising pipe valve, 5. argon inlet pipe, 6. suspension ring, 7. bell, 8. aqueduct, 9. cools body, 10. contact cooling body, 11. contact cooling body union levers.
Embodiment
Below in conjunction with embodiment, the utility model is described in detail.
The structure of the blowing out refrigerating unit of a kind of single crystal growing furnace that the utility model provides as shown in Figure 1-Figure 3, comprise the bell 7 of boring, bell 7 is respectively arranged with water inlet pipe 1, rising pipe 3 and argon inlet pipe 5, water inlet pipe 1 is provided with water inlet pipe valve 2, rising pipe 3 is provided with rising pipe valve 4, argon inlet pipe 5 is provided with argon gas valve, the air outlet of argon gas then utilizes the argon gas air outlet of single crystal growing furnace, the lower surface of bell 7 is connected with cools body 9 by two aqueducts 8, the bottom of cools body 9 is connected with contact cooling body 10 by contact cooling body union lever 11, and contact cooling body 10 in process of cooling is directly contacted at the bottom of crucible, fast and easy heat conduction.Contact cooling body 10 is high temperature resistant material, in order to avoid it occurs melting phenomenon with fusing point when contacting at the bottom of crucible lower than temperature at the bottom of crucible.In the present embodiment, contact cooling body 10 is 316 type stainless steels.Water inlet pipe 1, bell 7, aqueduct 8, cools body 9 and rising pipe 3 are communicated with formation cooling recirculation system successively.
The lower surface of bell 7 is provided with sealing-ring, makes to seal completely between bell 7 and single crystal furnace body, prevents argon gas from leaking.
The hollow design of bell 7 makes water can be full of in whole bell 7 inside and cools body 9, reduces the time of cooling.
Bell 7 being provided with several for being suspended on the suspension ring 6 on travelling bogie, this refrigerating unit can being stablized and be suspended on travelling bogie.The quantity of the present embodiment suspension ring 6 is 3 and arranges in equilateral triangle on bell 7.
The method utilizing the blowing out refrigerating unit of a kind of single crystal growing furnace of the present utility model to carry out single crystal growing furnace to cool, specifically comprises the following steps:
The first step, after single crystal growing furnace blowing out 1.5h-2h, concubine and single crystal growing furnace lid are removed, then bell 7 is changed on table top, bell 7 and single crystal growing furnace are sealed completely, connect water inlet pipe 1, rising pipe 3 and argon inlet pipe 5 again, the using state figure of this refrigerating unit as shown in Figure 4;
Second step, first open water inlet pipe valve 2 and rising pipe valve 4 and in regulating stove, hydraulic pressure is 0.15MPa-0.38MPa, then opening argon gas valve regulation argon flow amount is that 20slpm-80slpm cools, can work be retracted by the crystal bar carried out in concubine in process of cooling, carry out tearing furnaceman open after cooling 1h-1.5h and do.
After the blowing out of existing table structure, water coolant is still flowed out by bell circulation, but due to water coolant from thermal field center too away from, thus its to conduct the heat taken away extremely limited, very low to the utilising efficiency of water coolant, even can be described as a kind of waste, this reason causes the blowing out of single crystal growing furnace longer for cooling time.And structure of the present utility model can be general, shape and existing thermal field space adapt, and it can make full use of the effect of cooling of water coolant and argon gas, farthest takes away heat, improve the cooling efficiency of single crystal growing furnace, reach the object shortening cooling time.And utilize carry out crystal bar in concubine cooling time retract work, farthest make use of idle time especially, reduce the consuming time of a whole set of production technique.
By the way, the blowing out refrigerating unit of a kind of single crystal growing furnace of the present utility model solves existing single crystal growing furnace due to blowing out cooling rate and makes blowing out tear stove process longer shortcoming consuming time open slowly.The blowing out refrigerating unit of a kind of single crystal growing furnace of the present utility model has the following advantages:
1, owing to shortening blowing out temperature fall time, make blowing out tear the stove time open and greatly reduce, crystal bar can also be retracted in process of cooling, thus shorten single crystal growing furnace and run man-hour, improve plant factor;
2, because blowing out needs the cooling of stream argon, along with single crystal growing furnace temperature fall time reduces, the argon gas consumption for cooling also being greatly reduced, reducing production cost;
3, decrease that various graphite piece is hot tears situation about reducing in work-ing life that stove causes open, add graphite piece work-ing life, reduce production cost.
Claims (5)
1. the blowing out refrigerating unit of a single crystal growing furnace, it is characterized in that, comprise the bell (7) of boring, bell (7) is respectively arranged with water inlet pipe (1), rising pipe (3) and argon inlet pipe (5), water inlet pipe (1) is provided with water inlet pipe valve (2), rising pipe (3) is provided with rising pipe valve (4), (5) are provided with argon gas valve to argon inlet pipe, the lower surface of bell (7) is connected with cools body (9) by two aqueducts (8), the bottom of cools body (9) is connected with contact cooling body (10), described water inlet pipe (1), bell (7), aqueduct (8), cools body (9) and rising pipe (3) are communicated with formation cooling recirculation system successively.
2. the blowing out refrigerating unit of a kind of single crystal growing furnace as claimed in claim 1, it is characterized in that, described cools body (9) for high temperature resistant material and its underpart be connected by contact cooling body union lever (11) with contact cooling body (10).
3. the blowing out refrigerating unit of a kind of single crystal growing furnace as claimed in claim 1, is characterized in that, the lower surface of described bell (7) is provided with sealing-ring.
4. the blowing out refrigerating unit of a kind of single crystal growing furnace as described in any one of claim 1-3, is characterized in that, described bell (7) is provided with several for being suspended on the suspension ring (6) on travelling bogie.
5. the blowing out refrigerating unit of a kind of single crystal growing furnace as claimed in claim 4, is characterized in that, the quantity of described suspension ring (6) is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420573455.8U CN204151452U (en) | 2014-09-30 | 2014-09-30 | A kind of blowing out refrigerating unit of single crystal growing furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420573455.8U CN204151452U (en) | 2014-09-30 | 2014-09-30 | A kind of blowing out refrigerating unit of single crystal growing furnace |
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| CN204151452U true CN204151452U (en) | 2015-02-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300325A (en) * | 2017-07-25 | 2017-10-27 | 江苏亨通光纤科技有限公司 | Wire drawing induction furnace fast cooling device and its cool-down method |
| CN115287745A (en) * | 2022-08-12 | 2022-11-04 | 曲靖晶澳光伏科技有限公司 | Single crystal furnace |
| CN116005248A (en) * | 2022-12-29 | 2023-04-25 | 青海高景太阳能科技有限公司 | 40 inch thermal field device with heat absorber |
-
2014
- 2014-09-30 CN CN201420573455.8U patent/CN204151452U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300325A (en) * | 2017-07-25 | 2017-10-27 | 江苏亨通光纤科技有限公司 | Wire drawing induction furnace fast cooling device and its cool-down method |
| CN115287745A (en) * | 2022-08-12 | 2022-11-04 | 曲靖晶澳光伏科技有限公司 | Single crystal furnace |
| CN115287745B (en) * | 2022-08-12 | 2023-11-24 | 曲靖晶澳光伏科技有限公司 | Single crystal furnace |
| CN116005248A (en) * | 2022-12-29 | 2023-04-25 | 青海高景太阳能科技有限公司 | 40 inch thermal field device with heat absorber |
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