CN201305658Y - Waste heat boiler type polycrystalline silicon reduction furnace cooling device - Google Patents
Waste heat boiler type polycrystalline silicon reduction furnace cooling device Download PDFInfo
- Publication number
- CN201305658Y CN201305658Y CNU2008202229250U CN200820222925U CN201305658Y CN 201305658 Y CN201305658 Y CN 201305658Y CN U2008202229250 U CNU2008202229250 U CN U2008202229250U CN 200820222925 U CN200820222925 U CN 200820222925U CN 201305658 Y CN201305658 Y CN 201305658Y
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- water
- furnace
- waste heat
- polycrystalline silicon
- heat boiler
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides a waste heat boiler type polycrystalline silicon reduction furnace cooling device, comprising a furnace mantle, a cooling water inlet and a cooling water outlet, wherein the furnace mantle is a internally-hollow type ring-shaped sandwich device; the cooling water inlet is arranged at the lower part of the furnace mantle and is communicated with the internally-hollow type ring-shaped sandwich device by a water distributor; the water distributor comprises a ring-shaped pipe and a branch pipe, and the ring-shaped pipe is connected with the cooling water inlet arranged at the bottom of the internally-hollow type ring-shaped sandwich device by the branch pipe; and the cooling water outlet is arranged at the top of the furnace mantle and is communicated with the internally-hollow type ring-shaped sandwich device. The utility model has simple structure, and adopts gravity flow type cooling medium, thus having small power consumption, high heat transfer efficiency and cycle use.
Description
Technical field
The utility model relates to a kind of refrigerating unit that is used for the production of polysilicon reduction furnace, relates generally to a kind of waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit.
Background technology
Polycrystalline silicon reducing furnace is a specific equipment of producing polysilicon, in the prior art, the furnace binding of polycrystalline silicon reducing furnace is a bell-jar reduction furnace that has cooling jacket, its main type of cooling is to utilize heat-eliminating medium (being generally water or thermal oil) in the chuck to absorb and take away the heat of furnace high-temperature radiation on internal protecting wall, be used to heat the equipment of needs heating, after water or thermal oil discharge heat energy, return the reduction furnace chuck again and remove to cool off internal protecting wall, so circulation makes the waste heat of reduction furnace obtain utilizing.For adapting to this mode, usually spiral type flow guide plates or thrust-augmenting nozzle need be set in the reduction furnace chuck, because the temperature great majority of equipment that need heating are all more than 150 ℃, so water or thermal oil need be worked under the temperature more than 150 ℃.Present this method has 4 deficiencies: 1. owing to utilize the heating and cooling of thermal type, heat transfer efficiency is very low, need very big internal circulating load, and the high-temperature water circulation needs higher pressure (otherwise can produce steam), so medium temperature height, flow that the circulation power machinery of its use is carried are big, the pressure height, the power that needs power consumption is bigger.2. because heat transfer efficiency is very low, utilize the heat interchanging area of interchanger of its waste heat also bigger.3. take a shortcut when the reduction furnace chuck flows for anti-sealing or thermal oil, need flow deflector in the chuck when water or thermal oil, the working accuracy of flow deflector is very high.4. because reduction furnace waste heat that produces in the unit time is unbalanced, generally be isostatic and need the required heat energy of equipment of heating, balance gets up just to compare difficulty between the two when water or thermal oil.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technological deficiency, and a kind of waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit is provided.The utility model is simple in structure, adopts the gravity flow heat-eliminating medium, and power consumption is little, and the heat transfer efficiency height can be recycled.
For achieving the above object, the technical solution adopted in the utility model is:
Waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit, comprise furnace shell, water coolant import and export, it is characterized in that: described furnace shell is a ring-type hollow type sandwich device, entrance of cooling water is arranged on the furnace shell bottom and communicates with ring-type hollow type interlayer by water dispenser, described water dispenser comprises ring pipe and is in charge of that ring pipe links to each other by being in charge of with the entrance of cooling water of hollow type interlayer bottom; Cooling water outlet is arranged on the furnace shell top and communicates with ring-type hollow type interlayer.
Described waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit also includes steam separator, and the water coolant import and export is communicated with steam separator by pipeline respectively.
Described steam separator is a pressurized vessel, comprises seal casinghousing and water separator, and the reduction furnace cooling water outlet is communicated with water separator, and the reduction furnace water-in is communicated with seal casinghousing.
Described steam separator also is connected with uses thermic devices.
Advantage of the present utility model is:
1, the utility model is that interlayer is made the waste heat boiler type, middle no spiral guiding plate, when water enters interlayer by the water-in of the water dispenser that is arranged on furnace shell interlayer bottom, after the heating of furnace shell internal protecting wall, wherein portion water is vaporized into steam, proportion diminishes and moves upward, constantly there is portion water to be vaporized into steam at the volley, the mixture of last water and steam is flowed out by the furnace roof water outlet, rise to steam trap, isolated steam is sent to needs the hot equipment of using of heat energy, and the water that has discharged steam flows back into the water-in of interlayer, so repeatedly circulation.Improve the reliability and security of work, adopted the phase-change type heating and cooling, the heat transfer efficiency height, through test, heat transfer coefficient than the sensible heat formula heating and cooling high 15-30 of the temperature difference doubly utilizes the heat interchanging area of interchanger of its waste heat less relatively.
2, because furnace shell interlayer and steam separator form closed circulation, and water cycle is flow automatically fully, therefore only do not need to utilize power to make its flow circuit, need replenish back the water that gets off with hot equipment condensation in the recycle system and get final product, its power consumes energy very little.
3, unbalanced problem between waste heat that reduction furnace produces and the required heat energy can be come balance with the steam that replenishes steam or output native system output simply.
4, the utility model makes whole refrigerating unit structure simpler at original technical flow deflector and thrust-augmenting nozzle of having reduced, and manufacturing cost reduces greatly.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is that the A-A of Fig. 1 is to water dispenser sectional structure synoptic diagram.
Mark among the figure: 1 for to use thermic devices, and 2 is steam separator, and 3 is water separator, and 4 is pipeline, and 5 is the hollow type interlayer, and 6 is endless tube, and 7 for being in charge of.
Embodiment
Waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit, comprise furnace shell, water coolant import and export, described furnace shell is ring-type hollow type interlayer 5 devices, entrance of cooling water is arranged on the furnace shell bottom and communicates with ring-type hollow type interlayer 5 by water dispenser, described water dispenser comprises ring pipe 6 and is in charge of 7, being in charge of 7 can be according to using needs be set to many, and ring pipe 6 links to each other with the entrance of cooling water of hollow type interlayer 5 bottoms by being in charge of 7; Cooling water outlet is arranged on the furnace shell top and communicates with ring-type hollow type interlayer 5, and described waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit also includes steam separator 2, and the water coolant import and export is communicated with steam separator 2 by pipeline 4 respectively.Described steam separator 2 is a pressurized vessel, comprise seal casinghousing and water separator 3, the reduction furnace cooling water outlet is communicated with water separator 3, the reduction furnace water-in is communicated with seal casinghousing by pipeline 4, after the water coolant that contains steam flows into steam separator 2 from the reduction furnace cooling water outlet, in steam separator 2, be separated into steam and water, steam can be delivered to the equipment that needs with heat by pipeline, water then flow back into the reduction furnace entrance of cooling water, and described steam trap 2 also is connected with uses thermic devices.
The utility model is that interlayer is made the waste heat boiler type, when water enters interlayer by the water-in of the water dispenser that is arranged on furnace shell interlayer bottom, after the heating of furnace shell internal protecting wall, wherein portion water is vaporized into steam, proportion diminishes and moves upward, constantly there is portion water to be vaporized into steam at the volley, the mixture of last water and steam is flowed out by the furnace roof water outlet, rise to steam trap, isolated steam is sent to needs the hot equipment of using of heat energy, and the water that has discharged steam flows back into the water-in formation natural circulation of interlayer, so repeatedly circulation.Adopt the latent heat formula heating and cooling of phase transformation, the heat transfer efficiency height, through test, heat transfer coefficient than the high 15-30 of sensible heat formula heating and cooling of the temperature difference doubly utilizes the heat interchanging area of interchanger of its waste heat less relatively.
Because furnace shell interlayer and steam trap form closed circulation, and water cycle flow automatically fully, do not need power to make its flow circuit, therefore only need replenish back the water that gets off with hot equipment condensation in the recycle system to get final product, and its power consumes energy very little.Unbalanced problem between waste heat that reduction furnace produces and the required heat energy, can be simply with replenishing and output steam come balance.The utility model makes whole refrigerating unit structure simpler at original technical flow deflector and thrust-augmenting nozzle of having reduced, and manufacturing cost reduces greatly.
The utility model is not limited to above-mentioned embodiment.
Claims (4)
1, waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit, comprise furnace shell, water coolant import and export, it is characterized in that: described furnace shell is ring-type hollow type interlayer (a 5) device, entrance of cooling water is arranged on the furnace shell bottom and communicates with ring-type hollow type interlayer (5) by water dispenser, described water dispenser 5 comprises ring pipe (6) and is in charge of (7) that ring pipe (6) links to each other with the entrance of cooling water of hollow type interlayer (5) bottom by being in charge of (7); Cooling water outlet is arranged on the furnace shell top and communicates with ring-type hollow type interlayer (5).
2, waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit according to claim 1, it is characterized in that: described waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit also includes steam separator (2), and the water coolant import and export is communicated with steam separator (2) by pipeline (4) respectively.
3, waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit according to claim 2, it is characterized in that: described steam separator (2) is a pressurized vessel, comprise seal casinghousing and water separator (3), the reduction furnace cooling water outlet is communicated with water separator (3), and the reduction furnace water-in is communicated with seal casinghousing.
4, waste heat boiler type polycrystalline silicon reducing furnace refrigerating unit according to claim 3 is characterized in that: described steam separator (2) also is connected with thermic devices (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202229250U CN201305658Y (en) | 2008-11-26 | 2008-11-26 | Waste heat boiler type polycrystalline silicon reduction furnace cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202229250U CN201305658Y (en) | 2008-11-26 | 2008-11-26 | Waste heat boiler type polycrystalline silicon reduction furnace cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201305658Y true CN201305658Y (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202229250U Expired - Lifetime CN201305658Y (en) | 2008-11-26 | 2008-11-26 | Waste heat boiler type polycrystalline silicon reduction furnace cooling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201305658Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022919A (en) * | 2010-12-14 | 2011-04-20 | 湖南航天工业总公司 | Waste heat circulating system for industrial microwave high-temperature roller table continuous sintering furnace |
| CN102020276B (en) * | 2009-09-17 | 2012-07-25 | 重庆大全新能源有限公司 | Method for utilizing waste heat in polycrystalline silicon production process |
| CN111043870A (en) * | 2019-12-25 | 2020-04-21 | 罗智心 | System and method for recycling heat of polycrystalline silicon reduction furnace |
-
2008
- 2008-11-26 CN CNU2008202229250U patent/CN201305658Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020276B (en) * | 2009-09-17 | 2012-07-25 | 重庆大全新能源有限公司 | Method for utilizing waste heat in polycrystalline silicon production process |
| CN102022919A (en) * | 2010-12-14 | 2011-04-20 | 湖南航天工业总公司 | Waste heat circulating system for industrial microwave high-temperature roller table continuous sintering furnace |
| CN111043870A (en) * | 2019-12-25 | 2020-04-21 | 罗智心 | System and method for recycling heat of polycrystalline silicon reduction furnace |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |
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| CX01 | Expiry of patent term |