CN201303001Y - Fast cooling diffusion furnace - Google Patents
Fast cooling diffusion furnace Download PDFInfo
- Publication number
- CN201303001Y CN201303001Y CNU2008201595739U CN200820159573U CN201303001Y CN 201303001 Y CN201303001 Y CN 201303001Y CN U2008201595739 U CNU2008201595739 U CN U2008201595739U CN 200820159573 U CN200820159573 U CN 200820159573U CN 201303001 Y CN201303001 Y CN 201303001Y
- Authority
- CN
- China
- Prior art keywords
- cooling
- diffusion furnace
- fast cooling
- furnace
- burner hearth
- 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
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
A fast cooling diffusion furnace, which solves the problem of slow cooling of the prior diffusion furnace, is characterized in that the furnace hearth has a double-layered heat insulation structure; a cooling air inlet pipe (1) and a solenoid valve are arranged on the upper part of the furnace hearth; air outlets (7) are formed on both lower ends of the furnace hearth; holes (9) are formed on two side surfaces of an annular distribution pipe (8) surrounding the middle part of the inner heat insulating layer (5); and the cooling air can enter a heat insulation interlayer (4) through the holes. The fast cooling diffusion furnace is mainly used for the manufacture of PN junctions of solar cells.
Description
Technical field
The utility model relates to a kind of diffusion furnace of energy fast cooling.
Background technology
At present, solar battery sheet forms in the process of PN junction, because arts demand is rapidly heated and lowers the temperature, for guaranteeing heating rate and energy efficiency, heat-insulation layer is thick more good more, but uses too thick heat-insulation layer, can't accomplish that again burner hearth needs fast cooling.If in burner hearth, use wind cooling temperature lowering, can make local temperature inhomogeneous again, bring bad technology consequence to product.The diffusion furnace insulation thickness of producing reduces to 70mm by original 110mm now, some heat-insulating properties have been sacrificed, but the fastest decline temperature can only reach 5 ℃/min, still do not satisfy higher technological requirement, can bring severe energy waste and temperature instability again if reduce insulation layer thickness again.
Summary of the invention
The purpose of this utility model provides a kind of diffusion furnace of energy fast cooling.
The technical scheme that its technical problem that solves the utility model adopts is: for satisfying the technological requirement in the diffusion process, burner hearth is a double-decked insulation, the burner hearth middle upper portion is provided with into cooling tracheae and electromagnetic gas valve, stove is stared at the bottom, two ends and is provided with the gas outlet, when needing fast cooling, open the air inlet electromagnetically operated valve and be blown into compressed air, for guaranteeing that cooling evenly is blown into through ring-like gas-distributing pipe, the annular gas-distributing pipe is around the inner thermal insulating layer middle part, process a lot of apertures in the two sides of ring-like distributing pipe, cooling air is blown into the insulation interlayer by aperture, make the internal furnace fast cooling, when needs are incubated, close electromagnetic gas valve, thus since air inlet/outlet is less and down the air in the interlayer can't flow and have good heat insulation effect, play well energy-conservation and temperature stabilization effect simultaneously.
The beneficial effects of the utility model are, because interlayer is arranged, make the quickening that underspeeds of the utility model temperature, and temperature stabilization, are implemented in the fast cooling in the solar battery sheet production process.
Description of drawings
Fig. 1 is the utility model schematic diagram.
Fig. 2 is annular gas-distributing pipe schematic diagram.
1. advance to cool off tracheae, 2. furnace enclosure, 3. external thermal insulation, 4. insulation interlayer, 5. inner thermal insulating layer, 6. burner hearth end plate, 7. gas outlet, 8. annular gas-distributing pipe, 9. hole.
Embodiment
As seen from Figure 1, Figure 2, the utility model is the technological requirement that satisfies in the diffusion process, burner hearth in the furnace enclosure (2) has double-layer heat insulation interlayer (4), form by external thermal insulation (3) and inner thermal insulating layer (5), burner hearth end plate (6), the burner hearth middle upper portion is provided with into cooling tracheae (1) and electromagnetic gas valve, and stove is stared at the bottom, two ends and is provided with gas outlet (7), when needing fast cooling, open the air inlet electromagnetically operated valve and be blown into compressed air, evenly be blown into through ring-like distributing pipe for guaranteeing cooling.Process a lot of holes (9) in the two sides of a ring-like gas-distributing pipe (8), annular gas-distributing pipe (8) is around inner thermal insulating layer (5) middle part, cooling air is blown into the insulation interlayer by hole (9), make the internal furnace fast cooling, when being incubated, needs close electromagnetic gas valve, so since inlet, outlet is less and down the air in the interlayer can't flow and have good heat insulation effect, play well energy-conservation and temperature stabilization effect simultaneously.
The inner thermal insulating layer of burner hearth is 20-60mm, air blanketing is 5-100mm, external thermal insulation is that 20-160mm insulation material is alumina silicate fibre or insulation material commonly used, and annular gas-distributing pipe is heat-resistance stainless steel or copper or aluminium or iron pipe work, can make cooling rate reach 10-20 ℃/min in this way.
As the burner hearth inner thermal insulating layer is 60mm, air blanketing is 20mm external thermal insulation 70mm, the annular gas-distributing pipe is that the stainless steel tube of Φ 20x2mm bends 12 of apertures that form the equal Φ 4mm in both sides, interior external thermal insulation two ends are with same insulation material fixed support, other temperature control is the same with conventional diffusion furnace, and the maximum aborning cooling rate of improved burner hearth can reach 15 ℃/min.
Claims (1)
1, a kind of diffusion furnace of energy fast cooling, it is characterized in that: double-decked insulation is arranged in the burner hearth, burner hearth one end is provided with into cooling tracheae (1) and electromagnetic gas valve, the burner hearth other end is provided with gas outlet (7), annular gas-distributing pipe (8) is around inner thermal insulating layer (5) middle part, the two sides of ring-like distributing pipe (8) porose (9), cooling air can enter insulation interlayer (4) by hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201595739U CN201303001Y (en) | 2008-12-05 | 2008-12-05 | Fast cooling diffusion furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201595739U CN201303001Y (en) | 2008-12-05 | 2008-12-05 | Fast cooling diffusion furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201303001Y true CN201303001Y (en) | 2009-09-02 |
Family
ID=41086630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201595739U Expired - Fee Related CN201303001Y (en) | 2008-12-05 | 2008-12-05 | Fast cooling diffusion furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201303001Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012099687A1 (en) * | 2010-12-30 | 2012-07-26 | Poole Ventura, Inc. | Thermal diffusion chamber with heat exchanger |
-
2008
- 2008-12-05 CN CNU2008201595739U patent/CN201303001Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012099687A1 (en) * | 2010-12-30 | 2012-07-26 | Poole Ventura, Inc. | Thermal diffusion chamber with heat exchanger |
| CN103547703A (en) * | 2010-12-30 | 2014-01-29 | 普尔·文图拉公司 | Thermal diffusion chamber with heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20121205 |