CN201522196U - Novel flange structure for multi-crystalline silicon reduction furnace - Google Patents
Novel flange structure for multi-crystalline silicon reduction furnace Download PDFInfo
- Publication number
- CN201522196U CN201522196U CN2009202103261U CN200920210326U CN201522196U CN 201522196 U CN201522196 U CN 201522196U CN 2009202103261 U CN2009202103261 U CN 2009202103261U CN 200920210326 U CN200920210326 U CN 200920210326U CN 201522196 U CN201522196 U CN 201522196U
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- flange
- endless groove
- ring flange
- thickness
- polycrystalline silicon
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- Expired - Fee Related
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Abstract
The utility model discloses a novel flange structure for a multi-crystalline silicon reduction furnace, which comprises flange plates. The upper end surface of the flange plate is internally provided with an endless groove along the circumferential direction. The upper end surface of a flange plate at the inner side of the endless groove is welded with an inner tube body of the multi-crystalline silicon reduction furnace, while the upper end surface of a flange plate at the outer side of the endless groove is welded with a clamping sleeve tube body of the multi-crystalline silicon reduction furnace. The cross section bottom of the endless groove transits as a curve. An inside bushing and a bottom bushing ring are arranged in the flange plate, the inside bushing is arranged on the inner wall of the flange plate, the bottom bushing ring is arranged on the lower surface of the flange plate, and the inside bushing and the bottom bushing ring are connected together. The upper end of the inside bushing needs to be higher than the circular welding seam connecting the flange plate with the inner tube body. Based on the structure, the utility model adopts a calculation method of overall flange thickness, and the tube body thickness is the superimposition value of the inner tube body thickness and the bushing thickness, which reduces the calculating thickness of the equipment flange, thereby reducing the specification and quantity of bolts, nuts and cushion rings and saving materials.
Description
Technical field:
The utility model relates to chemical field, relates in particular to polycrystalline silicon reducing furnace, particularly a kind of polycrystalline silicon reducing furnace novel flange structure.
Background technology:
The production of solar energy polycrystalline silicon is at present based on the improvement Siemens Method, and polycrystalline silicon reducing furnace is the core that the improvement Siemens Method is produced solar energy polycrystalline silicon.Polycrystalline silicon reducing furnace service condition harshness, stressed complexity on the flange.In view of polycrystalline silicon reducing furnace all adopts the strap clamp nested structure, therefore the flange that is used on the polycrystalline silicon reducing furnace not only will be connected to inner barrel, but also will be connected on the chuck structure more complicated.In the prior art, the flange thickness on the polycrystalline silicon reducing furnace is very thick or inner barrel thickness is very thick, and is stressed unreasonable, suffered axial stress is excessive, and radial stress and circumference stress are very little, and then causes required bolt area to increase, worsen design condition, waste material.
Summary of the invention:
The purpose of this utility model is to provide a kind of polycrystalline silicon reducing furnace novel flange structure, the described this polycrystalline silicon reducing furnace technical problem of novel flange unreasonable structure.
This polycrystalline silicon reducing furnace of the present utility model is made of ring flange with the novel flange structure, wherein, along the circumferential direction be provided with an endless groove in the upper surface of described ring flange, be provided with inboard lining and bottom grommet in the ring flange, inboard lining is welded on the ring flange inwall, the bottom grommet is arranged on the ring flange lower surface, and inboard lining and bottom grommet link together, and the upper end of inboard lining is higher than the weld seam of mounting flange and inner barrel.
Further, be welded with the polycrystalline silicon reducing furnace inner barrel on the ring flange upper surface of endless groove inboard, be welded with polycrystalline silicon reducing furnace chuck cylindrical shell on the ring flange upper surface in the endless groove outside.
Further, the cross section of the described endless groove curved transition in bottom.
Further, the height of the ring flange upper surface of described endless groove inboard is greater than the height of the ring flange upper surface in the endless groove outside.
Concrete, ring flange adopts the carbon steel material manufacturing.Inboard lining and bottom grommet use stainless steel material.
Operation principle of the present utility model is: the vessel flange stress point is on inner core, chuck, bolt, packing ring and pad, suffered moment of flexure is little when obviously more strap clamp does not overlap, on the basis of this structure, can adopt integral (type) flange THICKNESS CALCULATION method, consider that big end of neck and neck small end thickness are the stack thickness at inner core place and chuck place, cylindrical shell thickness is the superposition value of inner core and jacket thickness, can reduce the calculated thickness of vessel flange, and then reduce the specification and the quantity of bolt, nut, packing ring, economical with materials.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model along the circumferential direction is provided with endless groove in the upper surface of ring flange, be welded with the reduction furnace inner barrel on the ring flange upper surface of endless groove inboard, welding reduction furnace chuck cylindrical shell on the ring flange upper surface in the endless groove outside, stress point is at inner core, chuck, bolt, on packing ring and the pad, suffered moment of flexure is little when obviously more strap clamp does not overlap, on the basis of this structure, can adopt integral (type) flange THICKNESS CALCULATION method, consider that big end of neck and neck small end thickness are the stack thickness at inner core place and chuck place, cylindrical shell thickness is the superposition value of inner core and jacket thickness, can reduce the calculated thickness of vessel flange, and then reduce bolt, nut, the specification of packing ring and quantity, economical with materials.
Description of drawings:
Fig. 1 is the cross-sectional view of polycrystalline silicon reducing furnace of the present utility model with the novel flange structure.
Fig. 2 is the partial cutaway schematic of the polycrystalline silicon reducing furnace shown in Fig. 1 with the novel flange structure.
The specific embodiment:
Embodiment 1:
As depicted in figs. 1 and 2, polycrystalline silicon reducing furnace of the present utility model novel flange structure, constitute by ring flange 2, wherein, along the circumferential direction be provided with an endless groove in the upper surface of described ring flange 1, be provided with inboard lining 5 and bottom grommet 4 in the ring flange 1, inboard lining 5 is arranged on ring flange 1 inwall, bottom grommet 4 is arranged on ring flange 1 lower surface, and inboard lining 5 and bottom grommet 4 link together, and the upper end of inboard lining 5 is higher than the weld seam that ring flange 1 is connected with inner barrel 2.
Further, be welded with polycrystalline silicon reducing furnace inner barrel 2 on ring flange 1 upper surface of endless groove inboard, be welded with polycrystalline silicon reducing furnace chuck cylindrical shell 3 on ring flange 1 upper surface in the endless groove outside.
Further, the cross section of the described endless groove curved transition in bottom.
Further, the height of ring flange 1 upper surface of described endless groove inboard is greater than the height of ring flange 1 upper surface in the endless groove outside.
Concrete, ring flange 1 adopts the carbon steel material manufacturing.Bottom grommet 4 and inboard lining 5 use stainless steel material.
Operation principle of the present utility model is: the vessel flange stress point is on inner core, chuck, bolt, packing ring and pad, suffered moment of flexure is little when obviously more strap clamp does not overlap, on the basis of this structure, can adopt integral (type) flange THICKNESS CALCULATION method, consider that big end of neck and neck small end thickness are the stack thickness at inner core place and chuck place, cylindrical shell thickness is the superposition value of inner core and jacket thickness, can reduce the calculated thickness of vessel flange, and then reduce the specification and the quantity of bolt, nut, packing ring, economical with materials.
Claims (4)
1. polycrystalline silicon reducing furnace novel flange structure, constitute by ring flange, it is characterized in that: along the circumferential direction be provided with an endless groove in the upper surface of described ring flange, be provided with inboard lining and bottom grommet in the ring flange, inboard lining is welded on the ring flange inwall, the bottom grommet is arranged on the ring flange lower surface, and inboard lining and bottom grommet link together, and the upper end of inboard lining is higher than the weld seam of mounting flange and inner barrel.
2. polycrystalline silicon reducing furnace novel flange structure as claimed in claim 1, it is characterized in that: be welded with the polycrystalline silicon reducing furnace inner barrel on the ring flange upper surface of endless groove inboard, be welded with polycrystalline silicon reducing furnace chuck cylindrical shell on the ring flange upper surface in the endless groove outside.
3. polycrystalline silicon reducing furnace novel flange structure as claimed in claim 1 is characterized in that: the cross section curved transition in bottom of described endless groove.
4. polycrystalline silicon reducing furnace novel flange structure as claimed in claim 1 is characterized in that: the height of the ring flange upper surface of described endless groove inboard is greater than the height of the ring flange upper surface in the endless groove outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202103261U CN201522196U (en) | 2009-09-28 | 2009-09-28 | Novel flange structure for multi-crystalline silicon reduction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202103261U CN201522196U (en) | 2009-09-28 | 2009-09-28 | Novel flange structure for multi-crystalline silicon reduction furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201522196U true CN201522196U (en) | 2010-07-07 |
Family
ID=42508374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202103261U Expired - Fee Related CN201522196U (en) | 2009-09-28 | 2009-09-28 | Novel flange structure for multi-crystalline silicon reduction furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201522196U (en) |
-
2009
- 2009-09-28 CN CN2009202103261U patent/CN201522196U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20160928 |