CN1330595C - Convective method of heating glass sheets using compressed air in conjunction with heated oven air - Google Patents
Convective method of heating glass sheets using compressed air in conjunction with heated oven air Download PDFInfo
- Publication number
- CN1330595C CN1330595C CNB038200848A CN03820084A CN1330595C CN 1330595 C CN1330595 C CN 1330595C CN B038200848 A CNB038200848 A CN B038200848A CN 03820084 A CN03820084 A CN 03820084A CN 1330595 C CN1330595 C CN 1330595C
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- CN
- China
- Prior art keywords
- air
- jet pipe
- conduit
- furnace gas
- mixing
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- 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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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
- C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
- C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
- C03B29/08—Glass sheets
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
A semi-convective forced air system for heating glass sheets, comprises a heating chamber in an oven, a longitudinal conveyor extending through the heating chamber, a compressed air source, a plurality oflongitudinally-extending compressed air pipes within the chamber, each of said pipes in fluid connection with the compressed air source, each of the pipes oriented parallel to the length of the longitudinal conveyor, the pipes having a series of spaced apart nozzles mounted thereon, a distribution pipe in fluid connection with the air source and the pipes, each of the nozzles having an upper port for receiving heated oven air, a side wall hole for receiving compressed air, a mixing chamber for mixing the compressed air with the oven air to form a hot mix, and a lower port for discharging the mix onto sheets in the oven chamber.
Description
Technical field
The present invention relates to semi-convection pressure/forced air system and method for the subsequent disposal heating glass plate.More particularly, system and method for the present invention is to be used for heating low radiation coated glass plate (low " e " glass) before the tempering, then sheet glass is carried out tempering.The present invention includes hot mixing air with pressurized air and hot furnace gas and be transported to new improved jet pipe on the sheet glass in the stove.
Technical background
The United States Patent (USP) formerly 5 of the TGL tempering system house in the Xin Namingsen district, New Jersey (Cinnaminson) that on September 14th, 1999 announced, 591,734 at this by incorporated by reference, this patent disclosure a kind of being used for to low " e " coated glass pane tempered semi-convection pressure air system, in this system the furnace air manifold along sheet glass flow/direct of travel places.Allow pressurized air to blow on these manifolds to be beneficial to heat treated hole on the sheet glass very little.The temperature of impacting the air of glass (plate) approximately is 426 ℃.Sheet glass must be heated to 634 ℃ and just can carry out tempering sheet glass.In case therefore the temperature of sheet glass reaches 426 ℃, convection system must be closed.If air keeps the time blow oversize, will be too cold when then sheet glass is come out of the stove and break.Sheet glass need be by infrared radiation to obtain about 634 ℃ final treatment temp.This slowest heat passage form of " e " sheet glass that is low, and to having increased the extra time heating period.
Summary of the invention
The objective of the invention is to replace United States Patent (USP) 5 with new improved jet pipe, aperture in 951,734 in the manifold, described jet pipe can suck warm air from stove, and warm air mixed with pressurized air to form hot mixing air, then hot mixing air is blown on the sheet glass.One cubic feet of pressurized air of every feeding should suck two cubic feet of furnace gases in jet pipe in jet pipe.This makes this convection system can be used for the whole cycle, thereby has reduced cycle time, and is particularly all the more so for soft plated film low " e " glass.In addition, big more by the volume of air of stove, the convection current of generation is also just strong more, and this has increased convective-heat-transfer rate, and has both helped accelerating cycle time, helps improving glass sheet quality again.
The invention provides a kind of mixing air that is used for pressurized air and hot furnace gas and be transported to jet pipe on the sheet glass in the stove, comprise: one has the pipe of medullary ray and sidewall, described pipe has the inside top that is formed for receiving from this stove an air inlet of hot furnace gas, one is positioned at the hole of this pipe sidewall, this hole forms one and is used to receive compressed-air actuated sidewall inlet mouth, one is positioned at the mixing section of this compressed air inlet port below of this pipe, this mixing section is used for mixing this pressurized air and this furnace gas at this pipe, to form this furnace gas and this compressed-air actuated mixing air that its temperature is higher than this compressed air temperature, one is positioned at the discharge port of this pipe bottom, and described mixing air blows on this sheet glass by this port.
Preferably, described hole becomes 30 ° of angles with this medullary ray, so that this mixing effect produces magnetism furnace gas is sucked this top port, described discharge port at the outside surface of this pipe to intramedullary expansion.
Preferably, utilize to comprise this jet pipe and to carry the device of compressed-air actuated delivery conduit, be used for that this sheet glass is heated to about 634 ℃ and be used for the tempered sheet glass with preparation to this jet pipe.
The present invention also provides a kind of semi-convection pressure air method of using the mixing air heating glass plate of pressurized air and hot furnace gas, comprise: make a series of sheet glass by comprising the stove of hot furnace gas, by the air in this stove of radiation heating, pressurized air is fed jet pipe in this stove, hot furnace gas is sucked this jet pipe, the hot furnace gas of this pressurized air and this is mixed in this jet pipe, to form the warm air mixture, this warm air mixture is blown to this just by on the sheet glass of this stove from this jet pipe, be suitable for the tempered temperature so that this sheet glass reaches, and this sheet glass is carried out temper.
Preferably, this method comprises: for each cubic feet pressurized air that feeds this jet pipe, need to suck two cubic feet of furnace gases.
Preferably, this method comprises: furnace gas is heated to about 676 ℃, in a transfer lime, about 38 ℃ pressurized air is fed this stove, and heat this pressurized air by this furnace gas, so that when this pressurized air arrives this jet pipe, be heated to about 426 ℃, and this about 634 ℃ mixing air is transported on this sheet glass.
The present invention also provides a kind of and is used for the pressurized air assembly of compressed air delivery to the jet pipe of stove, comprise: two respectively have the conduit that the array of spaced pressurized passes jet pipe wherein, these two conduits mutually in line, and the inner end of this conduit is spaced apart, one with the center Y-tube of compressed air delivery to this conduit, described center Y-tube has a primary member and a transverse member, be positioned at the flange at these transverse member two ends, and with this conduit inner end that flange on this transverse member is connected on flange, they still can separate by pulling down this flange after this conduit heating thus, thereby can clean conduit.
The present invention also provides a kind of semi-convection pressure air system that is used for heating glass plate, comprise: one is positioned at the heating chamber of this stove, one extends through the longitudinal delivery mechanism of this heating chamber, one compressed air source, a plurality of in this heating chamber the air-pressure duct of longitudinal extension, each described conduit all is connected with this pressurized air source fluid, each this conduit is all along the orientated lengthwise that is parallel to this longitudinal delivery mechanism, a series of spaced jet pipes are installed on this conduit, one distribution piping that is connected with catheter fluid with air source, each this jet pipe all has a upper port that is used to receive hot furnace gas, one is used to receive compressed-air actuated areole, one is used to mix this pressurized air and this furnace gas forming the mixing section of hot mixing air, and one is used for this mixing air is discharged into lower port on the sheet glass of this furnace chamber.
Description of drawings
Fig. 1 is the side-view of the conduit of pressurized air assembly, and this conduit has insertion jet pipe wherein and is suitable for hanging from furnace roof the suspension bracket of this conduit.
Fig. 2 is the fish-eye view of Fig. 1.
Fig. 3 is the front view of pressurized air service pipe among Fig. 1.
Fig. 4 is the detailed view that is labeled as the amplification in 4 zone among Fig. 3.
Fig. 5 is the side-view of amplification of the part of conduit shown in Figure 1 and jet pipe.
Fig. 5 a is the end view from Fig. 5 of Fig. 5 left side observation.
Fig. 5 b is the top view of a jet pipe among Fig. 5.
Fig. 6 is the fish-eye view of Fig. 5.
Fig. 7 is the rear view of a jet pipe among Fig. 5.
Fig. 8 is the frontview of the jet pipe of Fig. 7.
Fig. 9 is the side-view of roller, conduit, jet pipe, anchor clamps, suspension bracket and pressurized air feed conduit in the stove.
Figure 10 is the top view of stove inner catheter and jet pipe.
Figure 11 illustrates the layout of the suction system (aspiration system) that comprises air vessel, pressurized air service pipe, distribution piping and jet pipe.
Figure 12 a illustrates the side-view of a conduit flange.
Figure 12 b illustrates the front view of a face of flange from the observed Figure 12 a in the left side of Figure 12 a.
Figure 12 c illustrates from the front view of another face of observed this flange in the right of Figure 12 a.
Embodiment
Referring now to accompanying drawing, Fig. 7 illustrates the rear view of a jet pipe 21, and Fig. 8 illustrates the frontview of jet pipe 21.Pressurized air enters jet pipe 21 by hole 23, and furnace gas is inhaled into jet pipe by upper port 25, and this pressurized air and furnace gas mix in the mixing section 26 of jet pipe 21 bottoms to form the warm air mixture.The mixing air of this pressurized air and furnace gas is discharged on the sheet glass S by lower port 27, thereby sheet glass is heated so that further handle for example tempering.
For ease of processing, hole 23 has been optimised for 30 ° angling hole, but can also make other angle.The diameter in described hole is 0.080mm, so can blow over these holes at the inner particulate that forms of compressed air conveying system.Where necessary or when wishing, can change the diameter in hole.
The side-view of Fig. 5 and the fish-eye view of Fig. 6 illustrate pressurized and the air that passes a manifold or conduit 31 strengthens jet pipe 21, described manifold or conduit with compressed air delivery to jet pipe 21.Fig. 5 b illustrates hole 23 in the jet pipe 21 with respect to the orientation of manifold 31.Hole 23 is towards (this manifold) relative wall, so that particulate can directly not be blown into hole 23 and block this hole.
Fig. 5 illustrates the side-view that has pressurized and pass the manifold 31 of jet pipe 21 wherein.
Fig. 6 illustrates the fish-eye view of the manifold 31 that has jet pipe 21 among Fig. 5.
The quantity of jet pipe 21 can change according to the length of manifold 31 on every manifold 31.Usually, the between centers of jet pipe 21 is 30cm.
Fig. 1 and Fig. 2 illustrate the pneupress system assembly, and wherein pressurized air injects the center of the conduit 35 between sub-conduit 35a and the 35b by pressurized air service pipe 33.
Be suspended on suspension bracket 37 supporting tube 35a and the 35b on the furnace roof.
This pressurized air assembly comprises two 3/4ths inches conduit 35a and the 35b that has pressurized and pass wherein jet pipe 21, one is used to supply with compressed-air actuated center Y-tube 33, and the flange 39 that the transverse member 33a of Y-tube 33 is connected to conduit 35a and 35b.Use this flange 39 so that they still can separatedly be opened after conduit 35a and 35b heating, and make conduit 35a and 35b can carry out approximately annual cleaning.
Figure 12 a, 12b, 12c illustrate the details that is used for conduit 35a, 35b are connected to the flange 39 on the transverse member 33a of pressurized air Y-tube 33.
Y-tube 33 takes pressurized air conduit 35a, 35b to and brings jet pipe 21 into.
Fig. 9,10 and 11 illustrates the layout of the suction system that is used for this super " e " suction system.Be noted that 951,734 is the same as scheming patent No.5 formerly, the direction layout that conduit 35a, 35b move along sheet glass, and perpendicular to the roller in the stove 43 41.
Pressurized air enters stove 43 by a pressurized air feeding distribution ducts 33 and conduit 35a, 35b, when pressurized air passes through stove 43 and arrives jet pipe 21 approximately is 426 ℃, mix with about 676 ℃ to 704 ℃ hotter furnace gas then and form mixing air, this mixing air is transported to sheet glass S by jet pipe 21 under about 690 ℃.
Sheet glass S swings back and forth in stove 43, is used for the needed temperature of tempering up to reaching.
The semi-convection pressure air system that is used for heating glass plate S comprises: a heating chamber 43a who is positioned at stove 43; Extend through the longitudinal delivery mechanism 43b of heating chamber 43a; One compressed air source 43; A plurality of in heating chamber 43a the air-pressure duct 35 of longitudinal extension, every conduit 35 all is connected with the pressurized air source fluid, and every conduit 35 all is parallel to the orientated lengthwise of longitudinal delivery mechanism 43b, and a series of jet pipes of opening with the intervals of about 30cm 21 are installed on conduit 35; One fluid is connected in the distribution ducts 33 between air source 45 and the conduit 35; Each jet pipe 21 all has the upper port 25 of the hot furnace gas of a reception, be used to receive compressed-air actuated areole 23, be used for pressurized air is mixed with furnace gas forming the mixing section 21a between hole 23 and lower port 27 of hot mixing air, and be used for mixing air is discharged into a bottom port 27 on the sheet glass S of furnace chamber 43a.
Claims (8)
1. a mixing air that is used for pressurized air and hot furnace gas is transported to the jet pipe on the sheet glass in the stove, comprising:
One has the pipe of medullary ray and sidewall,
Described pipe has the inside top that is formed for receiving from this stove an air inlet of hot furnace gas,
One is positioned at the hole of this pipe sidewall, and this hole forms one and is used to receive compressed-air actuated sidewall inlet mouth,
One is positioned at the mixing section of this compressed air inlet port of this pipe below, and this mixing section is used for mixing this pressurized air and this furnace gas at this pipe, forming this furnace gas and this compressed-air actuated mixing air that its temperature is higher than this compressed air temperature,
One is positioned at the discharge port of this pipe bottom, and described mixing air blows on this sheet glass by this port.
2. jet pipe according to claim 1 is characterized in that,
Described hole becomes 30 ° of angles with this medullary ray, so that this mixing effect produces magnetism furnace gas is sucked this top port,
Described discharge port at the outside surface of this pipe to intramedullary expansion.
3. jet pipe according to claim 1 is characterized in that,
Utilization comprises this jet pipe and carries the device of compressed-air actuated delivery conduit to this jet pipe, is used for that this sheet glass is heated to about 634 ℃ and is used for the tempered sheet glass with preparation.
4. semi-convection pressure air method of using the mixing air heating glass plate of pressurized air and hot furnace gas comprises:
Make a series of sheet glass by comprising the stove of hot furnace gas,
By the air in this stove of radiation heating,
Pressurized air is fed jet pipe in this stove,
Hot furnace gas is sucked this jet pipe,
The hot furnace gas of this pressurized air and this is mixed in this jet pipe, with formation warm air mixture,
This warm air mixture is blown to this just by on the sheet glass of this stove from this jet pipe, be suitable for the tempered temperature so that this sheet glass reaches, and
This sheet glass is carried out temper.
5. method according to claim 4 is characterized in that, this method comprises:
For each cubic feet pressurized air that feeds this jet pipe, need to suck two cubic feet of furnace gases.
6. method according to claim 4 is characterized in that, this method comprises:
Furnace gas is heated to about 676 ℃,
In a transfer lime, about 38 ℃ pressurized air is fed this stove, and heat this pressurized air by this furnace gas, so that when this pressurized air arrives this jet pipe, be heated to about 426 ℃,
And this about 634 ℃ mixing air is transported on this sheet glass.
7. one kind is used for the pressurized air assembly of compressed air delivery to the jet pipe of stove comprised:
Two respectively have the conduit that the array of spaced pressurized passes jet pipe wherein,
These two conduits mutually in line, and the inner end of this conduit is spaced apart,
One with the center Y-tube of compressed air delivery to this conduit,
Described center Y-tube has a primary member and a transverse member,
Be positioned at the flange at these transverse member two ends,
And with this conduit inner end that flange on this transverse member is connected on flange,
They still can separate by pulling down this flange after this conduit heating thus, thereby can clean conduit.
8. semi-convection pressure air system that is used for heating glass plate comprises:
One is positioned at the heating chamber of this stove,
One extends through the longitudinal delivery mechanism of this heating chamber,
One compressed air source, a plurality of in this heating chamber the air-pressure duct of longitudinal extension,
Each described conduit all is connected with this pressurized air source fluid,
Each this conduit all along the orientated lengthwise that is parallel to this longitudinal delivery mechanism, is equipped with a series of spaced jet pipes on this conduit,
One distribution piping that is connected with catheter fluid with air source,
Each this jet pipe all has a upper port that is used to receive hot furnace gas, one is used to receive compressed-air actuated areole, one is used to mix this pressurized air and this furnace gas forming the mixing section of hot mixing air, and one is used for this mixing air is discharged into lower port on the sheet glass of this furnace chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24479502A | 2002-09-16 | 2002-09-16 | |
| US10/244,795 | 2002-09-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1678539A CN1678539A (en) | 2005-10-05 |
| CN1330595C true CN1330595C (en) | 2007-08-08 |
Family
ID=31991967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038200848A Expired - Fee Related CN1330595C (en) | 2002-09-16 | 2003-09-16 | Convective method of heating glass sheets using compressed air in conjunction with heated oven air |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1551775A1 (en) |
| CN (1) | CN1330595C (en) |
| AU (1) | AU2003262598A1 (en) |
| RU (1) | RU2287493C2 (en) |
| WO (1) | WO2004024642A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI120734B (en) | 2004-04-07 | 2010-02-15 | Tamglass Ltd Oy | A method for heating glass sheets for tempering and an apparatus for applying the method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5951734A (en) * | 1997-08-15 | 1999-09-14 | Tgl Tempering Systems, Inc. | Semi-convective forced air system for tempering low E coated glass |
| EP1279645A2 (en) * | 2001-07-27 | 2003-01-29 | Tamglass Ltd. Oy | Method and apparatus for heating glass sheets using semi-convective forced air |
-
2003
- 2003-09-16 CN CNB038200848A patent/CN1330595C/en not_active Expired - Fee Related
- 2003-09-16 WO PCT/FI2003/000673 patent/WO2004024642A1/en not_active Application Discontinuation
- 2003-09-16 EP EP03795038A patent/EP1551775A1/en not_active Withdrawn
- 2003-09-16 RU RU2005111221/03A patent/RU2287493C2/en not_active IP Right Cessation
- 2003-09-16 AU AU2003262598A patent/AU2003262598A1/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5951734A (en) * | 1997-08-15 | 1999-09-14 | Tgl Tempering Systems, Inc. | Semi-convective forced air system for tempering low E coated glass |
| EP1279645A2 (en) * | 2001-07-27 | 2003-01-29 | Tamglass Ltd. Oy | Method and apparatus for heating glass sheets using semi-convective forced air |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2287493C2 (en) | 2006-11-20 |
| CN1678539A (en) | 2005-10-05 |
| EP1551775A1 (en) | 2005-07-13 |
| RU2005111221A (en) | 2005-09-10 |
| WO2004024642A1 (en) | 2004-03-25 |
| AU2003262598A1 (en) | 2004-04-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GLASTON SERVICE CO., LTD. Free format text: FORMER NAME: |
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| CP01 | Change in the name or title of a patent holder |
Address after: Tampere Patentee after: Tem Glass Oy Address before: Tampere Patentee before: Tamglass Ltd OY |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070808 Termination date: 20140916 |
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| EXPY | Termination of patent right or utility model |