CN201882921U - Heat exchange device for trichlorosilane fluidized bed - Google Patents
Heat exchange device for trichlorosilane fluidized bed Download PDFInfo
- Publication number
- CN201882921U CN201882921U CN2010205751930U CN201020575193U CN201882921U CN 201882921 U CN201882921 U CN 201882921U CN 2010205751930 U CN2010205751930 U CN 2010205751930U CN 201020575193 U CN201020575193 U CN 201020575193U CN 201882921 U CN201882921 U CN 201882921U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- trichlorosilane
- heat
- bed
- exchange device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000005052 trichlorosilane Substances 0.000 title claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000005049 silicon tetrachloride Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Images
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- Silicon Compounds (AREA)
Abstract
The utility model discloses a heat exchange device for a trichlorosilane fluidized bed, which comprises sleeve bundles; the sleeve bundles are arranged in a fluidized bed shell in a penetrating way, are cylindrical, and are arranged in an annular array. In the heat exchange device, as sleeve bundles with fins are replaced by the sleeve bundles without the fins, the complex structure of the heat exchange device is greatly simplified, the heat exchange requirement can be well met, and the condition of 'temperature runaway' in the prior art is overcome.
Description
Technical field
The utility model relates to a kind of trichlorosilane fluidized-bed, relates in particular to a kind of heat-exchanger rig of trichlorosilane fluidized-bed.
Background technology
Trichlorosilane is the important source material of producing polysilicon at present, is the raw material basis of photovoltaic industry, also is the raw material basis of exploitation and development new forms of energy-environmental protection energy.Just present, the exploitation development environment-friendly type energy is global developing direction, so trichlorosilane has vast market prospect.
The production technique of trichlorosilane is as follows:
1) with exsiccant hydrogenchloride and silica flour;
2) in the trichlorosilane fluidized-bed, react generation trichlorosilane and a spot of silicon tetrachloride and hydrogen under 300 ℃ the situation;
3) through dedusting, condensation, tail gas absorbs;
4) lime set rectifying gets product trichlorosilane and by-product silicon tetrachloride.
In production process of trichlorosilane, the trichlorosilane fluidized-bed is main production unit, and wherein the heat-exchanger rig of trichlorosilane fluidized-bed is a trichlorosilane fluidized-bed vitals, and it adopts the cover tube bank of fin, complex structure, manufacturing cost height.Other shortcoming is that this heat-exchanger rig also is easy to generate " temperature runaway " (temperature runaway is meant that reactor is under the non-stable operational stage, when operating parameters has little disturbance, the phenomenon that the local area of reactor or the temperature in the whole reactor just can rise significantly.Temperature runaway is because reactive system is under operational condition due to " polymorphic " situation, and it is by the interaction of reaction heat effect and heat transfer process generation to a great extent.It often causes the destruction that runs well, even catalyzer is burnt.) so its structure of heat-exchanger rig of trichlorosilane fluidized-bed is still waiting to improve.
The utility model content
The utility model is at deficiency of the prior art, and a kind of heat-exchanger rig of trichlorosilane fluidized-bed of simple in structure, low cost of manufacture is provided, and uses the heat-exchanger rig of this trichlorosilane fluidized-bed to be not easy to produce " temperature runaway ".
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of heat-exchanger rig of trichlorosilane fluidized-bed comprises the cover tube bank, and described cover tube bank is arranged in the fluidized-bed housing, and described cover tube bank is cylinder.
In the technique scheme, described cover tube bank is right cylinder.
In the technique scheme, cover tube bank circular array formula is arranged.
Beneficial effect: the utility model compared with prior art has following beneficial effect:
The utility model has been simplified the complex construction of heat-exchanger rig greatly owing to restrain the cover tube bank that replaces having fin with the cover of non-finned.And well satisfied the heat exchange requirement; Overcome " temperature runaway " situation in the past.
Description of drawings
Fig. 1 is the structural representation of the heat-exchanger rig of trichlorosilane fluidized-bed.
Fig. 2 is an I place enlarged view among Fig. 1.
Fig. 3 be among Fig. 1 A-A to sectional view.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Referring to Fig. 1～3, a kind of heat-exchanger rig of trichlorosilane fluidized-bed comprises cover tube bank 1, and described cover tube bank 1 is arranged in the fluidized-bed housing 3, and described cover tube bank 1 is a right cylinder.Certain described cover tube bank 1 can also be other cylinder body shape of being convenient to process.
Preferably, cover tube bank 1 circular array formula is arranged.This structure can improve " than heat-transfer surface " (is the ratio of heat-transfer surface and reaction volume in the reaction zone than heat-transfer surface) greatly
The utility model has been simplified the complex construction of heat-exchanger rig greatly, and has well been satisfied the heat exchange requirement owing to restrain the cover tube bank 1 that replaces having fin with the cover of non-finned; Overcome " temperature runaway " situation in the past, made reaction be able to long-term (more than one month) and go on continuously.Its " than heat-transfer surface " (explain: be 7～12m-1 the ratio of heat-transfer surface and reaction volume in the reaction zone), good value 9.5～11m-1.
Claims (3)
1. the heat-exchanger rig of a trichlorosilane fluidized-bed comprises cover tube bank (1), and described cover tube bank (1) is arranged in the fluidized-bed housing (3), it is characterized in that, described cover tube bank (1) is a cylinder.
2. the heat-exchanger rig of trichlorosilane fluidized-bed as claimed in claim 1 is characterized in that, described cover tube bank (1) is a right cylinder.
3. the heat-exchanger rig of trichlorosilane fluidized-bed as claimed in claim 1 or 2 is characterized in that, cover tube bank (1) circular array formula is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205751930U CN201882921U (en) | 2010-10-25 | 2010-10-25 | Heat exchange device for trichlorosilane fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205751930U CN201882921U (en) | 2010-10-25 | 2010-10-25 | Heat exchange device for trichlorosilane fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882921U true CN201882921U (en) | 2011-06-29 |
Family
ID=44180459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205751930U Expired - Fee Related CN201882921U (en) | 2010-10-25 | 2010-10-25 | Heat exchange device for trichlorosilane fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201882921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591190A (en) * | 2015-01-26 | 2015-05-06 | 亚洲硅业（青海）有限公司 | Anti-abrasive device for heat exchange tube bundle in trichlorosilane synthetic furnace |
-
2010
- 2010-10-25 CN CN2010205751930U patent/CN201882921U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591190A (en) * | 2015-01-26 | 2015-05-06 | 亚洲硅业（青海）有限公司 | Anti-abrasive device for heat exchange tube bundle in trichlorosilane synthetic furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO ZHAORI FINE CHEMICAL CO., LTD. Free format text: FORMER NAME: NINGBO ZHAORI SILICON MATERIALS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315204 No. 389 North Sea Road, Ningbo chemical industry zone, Zhejiang Patentee after: NINGBO ZHAORI SILICON MATERIALS CO., LTD. Address before: 315204 No. 389 North Sea Road, Ningbo chemical industry zone, Zhejiang Patentee before: Ningbo Zhaori Silicon Materials Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20191025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |