CN203128212U - Energy-saving hydrogenation furnace internal part - Google Patents
Energy-saving hydrogenation furnace internal part Download PDFInfo
- Publication number
- CN203128212U CN203128212U CN2013201604141U CN201320160414U CN203128212U CN 203128212 U CN203128212 U CN 203128212U CN 2013201604141 U CN2013201604141 U CN 2013201604141U CN 201320160414 U CN201320160414 U CN 201320160414U CN 203128212 U CN203128212 U CN 203128212U
- Authority
- CN
- China
- Prior art keywords
- hydrogenation furnace
- insulation plate
- energy
- conservation
- hydrogenation
- 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
Images
Classifications
-
- 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
Landscapes
- Silicon Compounds (AREA)
Abstract
The utility model discloses an energy-saving hydrogenation furnace internal part. The hydrogenation furnace internal part is arranged in a hydrogenation furnace drum, and a heat insulation material is arranged between the hydrogenation furnace internal part and the furnace drum. The hydrogenation furnace internal part comprises a shell and two layers of heat shielding hoods inside the shell, namely an inner-layer heat shielding hood and an outer-layer heat shielding hood; an air hole is formed in the wall of each heat shielding hood; the inner-layer heat shielding hood is internally provided with a heating element; an air inlet is formed in the top of the shell; the air inlet is used for being communicated an air inlet pipeline at the top of the hydrogenation furnace drum; an air outlet is formed in the bottom of the shell; and the air outlet is communicated with an air outlet pipeline. According to the energy-saving hydrogenation furnace internal part, the structure is simple, the feeding temperature of a reactant is increased, the heat took away by furnace drum water is reduced, the heating power of the heating element is reduced, and the production cost is lowered.
Description
Technical field
The utility model relates to a kind of energy-conservation hydrogenation furnace internals, belongs to field of mechanical technique.
Background technology
Production of polysilicon mainly is to adopt Siemens Method.This method is under hydrogen (H2) atmosphere, and the trichlorosilane of purification is being heated to the silicon wicking surface reactive deposition of certain temperature, produces polysilicon.Because the difference of the transformation efficiency of silicon in the polysilicon vapour deposition is produced the silicon tetrachloride that the 1kg polysilicon can produce 12kg～20kg.In polysilicon production process, the discharging of silicon tetrachloride causes severe environmental pollution.Simultaneously, the progressively decline of solar-grade polysilicon price, also make hydrogenation of silicon tetrachloride recycle in the polysilicon production process, improve the silicon utilization ratio of raw materials, become the only way that reduces cost.
Using in the comparatively ripe hot hydrogenation production method at present, silicon tetrachloride after the vaporization preheating and hydrogen are mixed the back according to a certain percentage from its top feed of hydrogenation furnace body of heater, through the water conservancy diversion of pod, insulation plate, heating successively, enter the internal space, after the heating element heating, silicon tetrachloride is become trichlorosilane by hydrogen reduction under 1250 ℃～1400 ℃, aerogenesis generates polysilicon through sending back to after the purification process in the reduction furnace.
Because the heat in the hydrogenation furnace stove provides silicon tetrachloride and the hydrogen of heat by being full of in the heat radiation heating furnace by heating element energising back heating.The heat that heating element produces, wherein a part is passed insulation plate, pod, arrives hydrogenation furnace tube inwall, finally makes the chuck water quench band of stove tube heat; A part of heat is taken away by tail gas in addition, in present hot hydrogenation furnace production process, about heat of 60 percent water that is cooled is taken away, exist the waste of huge heat, so, need improve to reaching the thermal field heat-insulation and heat-preservation the reactant flow in the hydrogenation furnace, play energy-conservation effect, to reduce production costs.Existing pod is single layer structure, and thermal conduction is strong, and reactant and tail gas is the heat exchange weak effect in hydrogenation furnace, can not satisfy energy-conservation production requirement.
The utility model content
The utility model provides a kind of energy-conservation hydrogenation furnace internals, these internals not only can play the effect of water conservancy diversion, but also has good heat insulation effect, can utilize the energy efficiently, reduce the energy consumption of hot hydrogenation furnace, improve the temperature of charge enter in the hydrogenation furnace simultaneously, also improved the transformation efficiency that silicon tetrachloride production becomes trichlorosilane, reduce the power consumption that silicon tetrachloride production becomes trichlorosilane.
For solving above technical problem, the utility model provides following technical scheme: a kind of energy-conservation hydrogenation furnace internals, described hydrogenation furnace internals are installed in the hydrogenation furnace stove tube, and and the stove tube between be provided with heat-insulation material; Described hydrogenation furnace internals comprise housing and are built in the interior double thermal insulation cover of housing, are defined as internal layer insulation plate and outer insulation plate, all have ventilating pit on the cover wall of double thermal insulation cover, are provided with heating element in the internal layer insulation plate; The top of described housing is provided with air inlet port, and this air inlet port is used for being communicated with hydrogenation furnace stove tube top admission passage; Described housing bottom is provided with production well, and this production well is communicated with outlet pipe.
Further, described hydrogenation furnace cylindrical shell is fixed in the chassis, and inner casing, double thermal insulation cover and heating element also are fixed in the chassis, and the center chassis place connects outlet pipe.
Further, described calorifier is arranged at all sides of outlet pipe ingress, forms flow-guiding channel with interior insulation plate.
Further, have the space between described outer insulation plate and housing, the hole on the outer insulation plate cover wall is positioned at the bottom, forms flow-guiding channel between outer insulation plate and housing.
Further, described internal layer insulation plate top is provided with ventilating pit, and forms flow-guiding channel between outer insulation plate.
Further, described internal layer insulation plate is coaxial with outer insulation plate.
Further, described hydrogenation furnace internals are made by resistant to elevated temperatures graphite material or metallic substance.
This hydrogenation furnace internals that the utility model relates to, its beneficial effect is:
This hydrogenation furnace inner parts structure that the utility model relates to is simple, low cost of manufacture, and long service life is fit to promote.These hydrogenation furnace internals have improved the reaction-ure feeding temperature after implementing, and have reduced the heat that stove tube water is taken away, and reduce the heating element heating power, have reduced production cost.
Description of drawings
Fig. 1 is hydrogenation furnace internals shape assumption diagram of the present utility model;
Fig. 2 is hydrogenation furnace internals sectional view of the present utility model;
Mark and corresponding component title in the accompanying drawing 2: 1-stove tube, 2-heat-insulation material, the outer insulation plate of 3-, 4-chassis, 5-heating element, 6-housing, 7-internal layer insulation plate.
Embodiment
As shown in Figure 1, 2, hydrogenation furnace internals.Erection sequence is followed successively by: hydrogenation furnace heating element 5 and annex thereof → internal layer insulation plate → outer insulation plate → housing (adopting graphite material to make) → heat preserving and insulating material 2(heat preserving and insulating material adopts the graphite-like goods) → the stove tube.As shown in Figure 2, reactant enters in the housing 6 after entering from the hydrogenation furnace admission passage, again through outer insulation plate 3, enters in the internal layer insulation plate 7, after heating element 5 heating, enters reaction zone from the flow-guiding channel outflow.Fill heat preserving and insulating material 2 between the outer insulation plate of hydrogenation furnace and stove barrel, because stove tube coolant temperature is much smaller than the reactant inlet air temperature, after reactant entered reaction zone from the hydrogenation furnace internals, heating element 5 loads less power can keep same temperature of reaction.
As shown in Figure 1, 2, the hydrogenation furnace internals adopt the high temperature resistant stainless steel material to make, as 310s, and 800h etc., heat preserving and insulating material 2 adopts the fiber silicate product.
The utility model draws to draw a conclusion after above 3 embodiment finish, and sees Table 1 mutually.
Table 1
According to last table as can be seen, working time can not be prolonged behind the hydrogenation furnace after the utility model is implemented, but under the situation of equivalent responses logistics capacity, the power ratio that is carried on the heating element is implemented preceding obviously minimizing; The heat that stove tube water coolant is taken away obviously reduces than before implementing; The temperature that reactant advances before the hydrogenation furnace obviously raises, and has reduced energy consumption, has improved the transformation efficiency of silicon tetrachloride.The utility model hydrogenation furnace internals manufacturing cost is compared to conventional graphite (C-C) class material product, and cheap, selection is extensive, and is safe and reliable, is easy to promote.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. energy-conservation hydrogenation furnace internals, described hydrogenation furnace internals are installed in the hydrogenation furnace stove tube, and and the stove tube between be provided with heat-insulation material; It is characterized in that described hydrogenation furnace internals comprise housing and are built in the interior double thermal insulation cover of housing, are defined as internal layer insulation plate and outer insulation plate, all have ventilating pit on the cover wall of double thermal insulation cover, are provided with heating element in the internal layer insulation plate; The top of described housing is provided with air inlet port, and this air inlet port is used for being communicated with hydrogenation furnace stove tube top admission passage; Described housing bottom is provided with production well, and this production well is communicated with outlet pipe.
2. a kind of energy-conservation hydrogenation furnace internals according to claim 1 is characterized in that described hydrogenation furnace cylindrical shell is fixed in the chassis, and inner casing, double thermal insulation cover and heating element also are fixed in the chassis, and the center chassis place connects outlet pipe.
3. a kind of energy-conservation hydrogenation furnace internals according to claim 1 is characterized in that described calorifier is arranged at all sides of outlet pipe ingress, form flow-guiding channel with interior insulation plate.
4. a kind of energy-conservation hydrogenation furnace internals according to claim 1 is characterized in that having the space between described outer insulation plate and housing, and the hole on the outer insulation plate cover wall is positioned at the bottom, forms flow-guiding channel between outer insulation plate and housing.
5. a kind of energy-conservation hydrogenation furnace internals according to claim 1 is characterized in that, described internal layer insulation plate top is provided with ventilating pit, and forms flow-guiding channel between outer insulation plate.
6. a kind of energy-conservation hydrogenation furnace internals according to claim 1 is characterized in that described internal layer insulation plate is coaxial with outer insulation plate.
7. a kind of energy-conservation hydrogenation furnace internals according to claim 1 is characterized in that described hydrogenation furnace internals are made by resistant to elevated temperatures graphite material or metallic substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201604141U CN203128212U (en) | 2013-04-02 | 2013-04-02 | Energy-saving hydrogenation furnace internal part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201604141U CN203128212U (en) | 2013-04-02 | 2013-04-02 | Energy-saving hydrogenation furnace internal part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203128212U true CN203128212U (en) | 2013-08-14 |
Family
ID=48936210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201604141U Expired - Fee Related CN203128212U (en) | 2013-04-02 | 2013-04-02 | Energy-saving hydrogenation furnace internal part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203128212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110510615A (en) * | 2019-09-25 | 2019-11-29 | 洛阳中硅高科技有限公司 | Guiding device for polycrystalline silicon reducing furnace and the reduction furnace with it |
-
2013
- 2013-04-02 CN CN2013201604141U patent/CN203128212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110510615A (en) * | 2019-09-25 | 2019-11-29 | 洛阳中硅高科技有限公司 | Guiding device for polycrystalline silicon reducing furnace and the reduction furnace with it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101528411B1 (en) | External Heating Type Coal Material Decomposition Apparatus With Multiple Tubes | |
| CN101985559A (en) | Electrothermal coal decomposing equipment | |
| CN203128212U (en) | Energy-saving hydrogenation furnace internal part | |
| CN204385290U (en) | The air-cooled furnace binding of a kind of tubular type PECVD | |
| CN101955178B (en) | Method and device for cooling high-temperature calcined coke of carbon rotary kiln | |
| CN103194273B (en) | Two-stage coal gas generating device | |
| CN102674359B (en) | Device and method for cooing tail gas recovery liquid of polysilicon reduction furnace with inner tank | |
| CN110285671B (en) | Aluminum scrap smelting system | |
| CN104018010A (en) | Reduction distillation furnace for sponge titanium production | |
| CN203700458U (en) | Reduction distilling furnace for producing titanium sponge by virtue of magnesium reduction method | |
| JP2014500892A (en) | Heated gas circulation type carbon material decomposition method and equipment | |
| CN205687571U (en) | A kind of polycrystalline silicon reducing furnace of band internal cooling system | |
| CN104830350A (en) | Biomass organic carbon preparation device | |
| CN104016350A (en) | Polycrystalline silicon reduction furnace chassis and tail gas cooling system and method thereof | |
| CN203582816U (en) | Gasification furnace with heat exchange device | |
| CN203866369U (en) | Heat-source-free continued reduction device for magnetizing roasting in rotary kiln | |
| CN202131104U (en) | Bell jar and chassis of polycrystalline silicon reduction furnace | |
| CN202881180U (en) | Heat exchanger of crude gas waste heat recovery used for coke oven ascension pipe | |
| CN206266232U (en) | A kind of system of pyrolysis oven and furnace of calcium carbide combination production calcium carbide | |
| CN201857271U (en) | Polysilicon hydrogenation furnace | |
| CN202766296U (en) | Special phosphoric acid tower and self-balancing system for producing phosphoric acids by hot method | |
| CN201433194Y (en) | An improved gas making furnace body | |
| CN201704261U (en) | Device for recovering coke oven crude gas residual heat | |
| CN204939573U (en) | A kind of mercury catalyst pre-treatment distillation cools back the device received and utilize water coolant | |
| CN203212534U (en) | Double-stage gas generation device |
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: 20130814 Termination date: 20190402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |