CN204211856U - A kind of polycrystalline ingot furnace with heat-exchange system - Google Patents
A kind of polycrystalline ingot furnace with heat-exchange system Download PDFInfo
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- CN204211856U CN204211856U CN201420680678.4U CN201420680678U CN204211856U CN 204211856 U CN204211856 U CN 204211856U CN 201420680678 U CN201420680678 U CN 201420680678U CN 204211856 U CN204211856 U CN 204211856U
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Abstract
The utility model discloses a kind of polycrystalline ingot furnace with heat-exchange system, relate to ingot furnace technical field; Heat-exchange system is added between total rising pipe on ingot furnace and cooling water treatment system, the argon gas from the temperature of argon gas gas-holder outflow is lower is made to carry out heat exchange with the water coolant heated up that absorbs heat from ingot furnace, the temperature of argon gas is raised, and the temperature of water coolant reduces; Thus avoid the temperature of argon gas entering silicon liquid surface too low, ensure the normal fractional condensation of impurity; Meanwhile, the temperature of cooling water entering cooling water treatment system is lower, reduces the energy consumption of cooling water treatment system.
Description
Technical field
The utility model relates to ingot furnace technical field.
Background technology
In polycrystalline cast ingot is produced, the fusing of silicon ingot and growth are all carried out under the subnormal ambient of 600 person of outstanding talent's bar, and period needs to pass into argon gas to maintain furnace chamber pressure.Argon gas is a kind of rare gas element, can not react with silicon ingot and graphite, can protect silicon ingot and graphite not oxidized.Argon gas also can take away the impurity volatilized in silicon ingot process of growth simultaneously.In production, argon gas mainly comes from liquid argon storage tank, as shown in Figure 1, in ingot casting process, argon gas enters from the argon inlet pipe 1 of top after boosting, blow to silicon liquid 10 surface, scatter to surrounding, the impurity that argon gas carries silicon liquid 10 volatilization enters chamber from the hole of heat-insulation cage 8 bottom, then extracted out by vacuum pump 7, be discharged in air through escape pipe 15.The temperature entering the argon gas of ingot furnace is very low, directly blows to the surface of silicon liquid 10, can form local overcooling in this region, makes the silicon liquid 10 on surface become supercooled liquid, silicon liquid 10 temperature of local can be made to be reduced to below fusing point, affect the normal fractional condensation of impurity.
On polycrystalline ingot furnace, another important link is exactly cooling water system.The furnace chamber 12 of ingot furnace is divided into lower furnace chamber two portions, is all hollow structure, and upper furnace chamber forms cooling water system by upper furnace chamber water inlet pipe 3 and upper furnace chamber rising pipe 2, and lower furnace chamber forms cooling water system by lower furnace chamber water inlet pipe 5 and lower furnace chamber rising pipe 4.In ingot casting process, heat-insulation cage 8 is upwards opened gradually, and the heat in silicon liquid 10 is delivered to heat exchange platform 11, is then radiated to furnace chamber wall, is finally taken away by water coolant, realizes silicon liquid 10 radiating and cooling, reaches the object of directional freeze.At production plant, water coolant is by a larger Pipeline transport, by distributing to each ingot furnace, the water coolant that each ingot furnace flows out imports the cooling water treatment system 16 that treatment of cooling water workshop delivered to by a larger total rising pipe 13 again, send pouring hall back to through water inlet manifold 14 after refrigeration process, realize circulation.But the temperature of cooling water after heat absorption is higher, energy consumption during refrigeration process will be larger, considerably increases production cost.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of polycrystalline ingot furnace with heat-exchange system, the energy consumption in treatment of cooling water process can be reduced, meanwhile, improve the inlet air temperature of argon gas, reduce the impact of argon gas on silicon liquid surface local overcooling, ensure the normal fractional condensation of impurity.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of polycrystalline ingot furnace with heat-exchange system, comprise body of heater and cooling water treatment system, the furnace chamber of body of heater is hollow structure, described furnace chamber comprises furnace chamber and lower furnace chamber, upper furnace chamber is connected with furnace chamber rising pipe and upper furnace chamber water inlet pipe, lower furnace chamber is connected with lower furnace chamber rising pipe and lower furnace chamber water inlet pipe, upper furnace chamber rising pipe is connected with total rising pipe with the water side of lower furnace chamber rising pipe, upper furnace chamber water inlet pipe is connected with water inlet manifold with the feed-water end of lower furnace chamber water inlet pipe, and water inlet manifold is connected with the water coolant water side of cooling water treatment system; Be provided with heat-insulation cage in body of heater, heat-insulation cage top is provided with well heater, is provided with heat exchange platform bottom heat-insulation cage, and heat-insulation cage top is also connected with and puts in from upper of furnace body the argon inlet pipe come, and body of heater side is connected with escape pipe, and escape pipe is connected with vacuum pump; Also comprise heat-exchange system, described heat-exchange system comprises shell and heat transfer tube, described heat transfer tube is installed in the enclosure, described shell one end is connected with total rising pipe, the shell the other end connects heat exchange rising pipe, and described heat transfer tube one end is connected with argon inlet pipe, and the other end connects heat exchange inlet pipe, heat exchange inlet pipe is connected with argon gas gas-holder, and heat exchange rising pipe is connected with the water coolant feed-water end of cooling water treatment system.
Further technical scheme, described heat transfer tube is volution.
Further technical scheme, described total rising pipe and heat exchange inlet pipe lay respectively at the two ends of heat-exchange system.
Adopt the beneficial effect that produces of technique scheme to be: the utility model can make to absorb heat from ingot furnace the water coolant that heats up with carry out heat exchange from the argon gas in gas-holder, the temperature of water coolant is reduced, the water coolant that temperature reduces enters cooling water treatment system, and then reduces the process energy consumption in treatment of cooling water operation; , raise with the temperature of argon gas after water coolant heat exchange meanwhile, improve the temperature of the argon gas entered in ingot furnace, reduce the impact of argon gas on silicon liquid surface local overcooling, ensure that the normal fractional condensation of impurity; Heat exchange tube design is volution, increases heat interchanging area, improves heat exchange efficiency; Total rising pipe and heat exchange inlet pipe lay respectively at the two ends of heat-exchange system, the mode that argon gas and water coolant flow with subtend is flowed, further enhancing heat transfer effect, improve heat exchange efficiency.
Accompanying drawing explanation
Fig. 1 is existing polycrystalline ingot furnace;
Fig. 2 is structural representation of the present utility model;
In the accompanying drawings: 1, argon inlet pipe, 2, upper furnace chamber rising pipe, 3, upper furnace chamber water inlet pipe, 4, lower furnace chamber rising pipe, 5, lower furnace chamber water inlet pipe, 6, asbestos, 7, vacuum pump, 8, heat-insulation cage, 9, well heater, 10, silicon liquid, 11, heat exchange platform, 12, furnace chamber, 13, total rising pipe, 14, water inlet manifold, 15, escape pipe, 16, cooling water treatment system, 17, heat-exchange system, 18, shell, 19, heat transfer tube, 20, heat exchange rising pipe, 21, heat exchange inlet pipe.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 2, a kind of polycrystalline ingot furnace with heat-exchange system, comprise body of heater and cooling water treatment system 16, the furnace chamber 12 of body of heater is hollow structure, furnace chamber 12 comprises furnace chamber and lower furnace chamber, upper furnace chamber is connected with furnace chamber rising pipe 2 and upper furnace chamber water inlet pipe 3, lower furnace chamber is connected with lower furnace chamber rising pipe 4 and lower furnace chamber water inlet pipe 5, upper furnace chamber rising pipe 2 is connected with total rising pipe 13 with the water side of lower furnace chamber rising pipe 4, upper furnace chamber water inlet pipe 3 is connected with water inlet manifold 14 with the feed-water end of lower furnace chamber water inlet pipe 5, water inlet manifold 14 is connected with the water coolant water side of cooling water treatment system 16, heat-insulation cage 8 is provided with in body of heater, heat-insulation cage 8 top is provided with well heater 9, heat exchange platform 11 is installed bottom heat-insulation cage 8, heat-insulation cage 8 top is also connected with and puts in from upper of furnace body the argon inlet pipe 1 come, body of heater side is connected with escape pipe 15, escape pipe 15 is connected with vacuum pump 7, and the argon gas in ingot furnace is extracted out by vacuum pump 7, also comprise heat-exchange system 17, heat-exchange system 17 comprises shell 18 and heat transfer tube 19, heat transfer tube 19 is arranged in shell 18, shell 18 one end is connected with total rising pipe 13, shell 18 the other end connects heat exchange rising pipe 20, and heat transfer tube 19 one end is connected with argon inlet pipe 1, and heat transfer tube 19 the other end connects heat exchange inlet pipe 21, heat exchange inlet pipe 21 is connected with argon gas gas-holder, and heat exchange rising pipe 20 is connected with the water coolant feed-water end of cooling water treatment system 16.Heat transfer tube 19 is volution, and shell 18 is cylindrical barrel, and shell 18 and heat transfer tube 19 all adopt stainless material.Total rising pipe 13 and heat exchange inlet pipe 21 lay respectively at the two ends of heat-exchange system 17, and namely argon inlet pipe 1 and total rising pipe 13 are positioned at same one end, and heat exchange rising pipe 20 and heat exchange inlet pipe 21 are positioned at same one end.
The utility model on the basis of existing technology, newly increase the heat-exchange system 17 of argon gas and water coolant, the argon gas that the water coolant that the heat absorption of flowing out from total rising pipe 13 is heated up is lower with the temperature flowed into from gas-holder carries out heat exchange, the temperature of water coolant is reduced, the temperature of argon gas raises, then water coolant enters cooling water treatment system 16 through heat exchange rising pipe 20, after cooling down, again enter ingot furnace from water inlet manifold 14, and argon gas enters the surface of silicon liquid 10 from argon inlet pipe 1.In this course, due to water coolant have passed through heat exchange after lower the temperature, reduce the energy consumption in cooling water treatment system 16, saved the energy, reduced cost; Meanwhile, the temperature of argon gas through heat-exchange system 17 increases, and avoids the argon gas entering silicon liquid 10 surface and has an impact to silicon liquid 10, ensure that normal impurity segregation.
Claims (3)
1. the polycrystalline ingot furnace with heat-exchange system, comprise body of heater and cooling water treatment system (16), the furnace chamber (12) of body of heater is hollow structure, described furnace chamber (12) comprises furnace chamber and lower furnace chamber, upper furnace chamber is connected with furnace chamber rising pipe (2) and upper furnace chamber water inlet pipe (3), lower furnace chamber is connected with lower furnace chamber rising pipe (4) and lower furnace chamber water inlet pipe (5), upper furnace chamber rising pipe (2) is connected with total rising pipe (13) with the water side of lower furnace chamber rising pipe (4), upper furnace chamber water inlet pipe (3) is connected with water inlet manifold (14) with the feed-water end of lower furnace chamber water inlet pipe (5), water inlet manifold (14) is connected with the water coolant water side of cooling water treatment system (16), heat-insulation cage (8) is provided with in body of heater, heat-insulation cage (8) top is provided with well heater (9), heat-insulation cage (8) bottom is provided with heat exchange platform (11), heat-insulation cage (8) top is also connected with and puts in from upper of furnace body the argon inlet pipe (1) come, body of heater side is connected with escape pipe (15), and escape pipe (15) is connected with vacuum pump (7), characterized by further comprising heat-exchange system (17), described heat-exchange system (17) comprises shell (18) and heat transfer tube (19), described heat transfer tube (19) is arranged in shell (18), described shell (18) one end is connected with total rising pipe (13), shell (18) the other end connects heat exchange rising pipe (20), described heat transfer tube (19) one end is connected with argon inlet pipe (1), heat transfer tube (19) the other end connects heat exchange inlet pipe (21), heat exchange inlet pipe (21) is connected with argon gas gas-holder, heat exchange rising pipe (20) is connected with the water coolant feed-water end of cooling water treatment system (16).
2. a kind of polycrystalline ingot furnace with heat-exchange system according to claim 1, is characterized in that described heat transfer tube (19) is volution.
3. a kind of polycrystalline ingot furnace with heat-exchange system according to claim 1, is characterized in that described total rising pipe (13) and heat exchange inlet pipe (21) lay respectively at the two ends of heat-exchange system (17).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420680678.4U CN204211856U (en) | 2014-11-14 | 2014-11-14 | A kind of polycrystalline ingot furnace with heat-exchange system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420680678.4U CN204211856U (en) | 2014-11-14 | 2014-11-14 | A kind of polycrystalline ingot furnace with heat-exchange system |
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| CN204211856U true CN204211856U (en) | 2015-03-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835278A (en) * | 2017-01-13 | 2017-06-13 | 许昌天戈硅业科技有限公司 | A kind of crystal growth furnace heater and sapphire crystal growing furnace |
| CN106868594A (en) * | 2017-01-13 | 2017-06-20 | 许昌天戈硅业科技有限公司 | A kind of low energy consumption sapphire crystal growing furnace |
| CN107815731A (en) * | 2016-02-03 | 2018-03-20 | 陈鸽 | A kind of polycrystalline ingot furnace with carrier gas heater |
| CN108441947A (en) * | 2018-06-21 | 2018-08-24 | 江苏迩高新能源科技有限公司 | The cooling water recirculation system of silicon material ingot casting boiler |
| CN114703540A (en) * | 2022-04-28 | 2022-07-05 | 晶科能源股份有限公司 | Heat exchange equipment of single crystal furnace and application method thereof |
-
2014
- 2014-11-14 CN CN201420680678.4U patent/CN204211856U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815731A (en) * | 2016-02-03 | 2018-03-20 | 陈鸽 | A kind of polycrystalline ingot furnace with carrier gas heater |
| CN107815731B (en) * | 2016-02-03 | 2021-08-13 | 上海岚玥新材料科技有限公司 | Polycrystal ingot furnace with gas-carrying heating device |
| CN106835278A (en) * | 2017-01-13 | 2017-06-13 | 许昌天戈硅业科技有限公司 | A kind of crystal growth furnace heater and sapphire crystal growing furnace |
| CN106868594A (en) * | 2017-01-13 | 2017-06-20 | 许昌天戈硅业科技有限公司 | A kind of low energy consumption sapphire crystal growing furnace |
| CN108441947A (en) * | 2018-06-21 | 2018-08-24 | 江苏迩高新能源科技有限公司 | The cooling water recirculation system of silicon material ingot casting boiler |
| CN108441947B (en) * | 2018-06-21 | 2024-01-02 | 江苏迩高新能源科技有限公司 | Cooling water circulation system of silicon ingot casting boiler |
| CN114703540A (en) * | 2022-04-28 | 2022-07-05 | 晶科能源股份有限公司 | Heat exchange equipment of single crystal furnace and application method thereof |
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