CN204111586U - A kind of strengthening convection device of annealing furnace - Google Patents

A kind of strengthening convection device of annealing furnace Download PDF

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Publication number
CN204111586U
CN204111586U CN201420211936.4U CN201420211936U CN204111586U CN 204111586 U CN204111586 U CN 204111586U CN 201420211936 U CN201420211936 U CN 201420211936U CN 204111586 U CN204111586 U CN 204111586U
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China
Prior art keywords
heating wire
electrical heating
gas
bearing formation
furnace body
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Expired - Fee Related
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CN201420211936.4U
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Chinese (zh)
Inventor
王凤鸣
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YUNNAN SUNSHINE LISHENG GLASS TECHNOLOGY Co Ltd
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YUNNAN SUNSHINE LISHENG GLASS TECHNOLOGY Co Ltd
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Abstract

The utility model relates to a kind of strengthening convection device of annealing furnace, and it belongs to glass tempering technology field; Comprise body of heater, frequency conversion fan, thermal insulation layer, ceramic roller, electrical heating wire, get gas-bearing formation and airduct passage, ceramic roller is between upper furnace body and lower furnace body; Wherein respectively be provided with electrical heating wire in upper and lower two bodies of heater, electrical heating wire is all towards ceramic roller; Airduct passage comprises upcast ventilation pipe, crosswind pipe and jet pipe; Blower fan is connected with airduct passage, gets the below that gas-bearing formation is positioned at blower fan in upper furnace body, and electrical heating wire is positioned at the below of getting gas-bearing formation, and jet pipe is positioned at the below of electrical heating wire; Jet pipe in lower furnace body is positioned at the top of electrical heating wire, gets the below that gas-bearing formation is positioned at electrical heating wire; Jet pipe is air grid shape, and it has production well; Blower fan draws air-flow from getting gas-bearing formation, enters in airduct passage; Air-flow is sprayed onto the upper and lower surface of glass from the production well of jet pipe, to glass heats; Heat cooled air-flow through electrical heating wire, get back to and get in gas-bearing formation, form a cyclic hardening convection system.The utility model reasonable in design, upper and lower convector is set in stove, recirculation blower is used to form jet flow, produce the circulated heat of high speed high flow capacity, meanwhile, strengthening bottom convection action, glass upper and lower surface is made to realize Synchronous Heating, improve heat-transfer effect, temperature can long-time stable, shortens the production cycle.

Description

A kind of strengthening convection device of annealing furnace
Technical field
The utility model relates to a kind of strengthening convection device, and especially a kind of strengthening hot-air convection for annealing furnace carries out the device heated, and belongs to glass tempering technology field.
Background technology
During normal transparent float glass tempering, require that glass minimum temperature will reach 40 ~ 50 DEG C of more than Tg, because Low-E glass coating has higher reflectivity to infrared radiation, reduce the heat absorption rate of face glass surface, and heating can not more than 630 DEG C, for ensureing that inside of glass plate temperature reaches tempering temperature, heat-up time in stove need be extended, will cause like this Low-E glass face because of long-term exposure at high temperature rete can be oxidized and even burn, surface quality declines, basic function is damaged and even can loses and the face characteristic of Low-E glass, affect the fundamental characteristics of glass.For the characteristic of Low-E glass, the effect of strengthening convective heating when heating Low-E glass, namely general by forced convection type of heating heating glass surface, determine rational air current flow speed and direction simultaneously, optimize convective heat-transfer coefficient, thus effectively improve heating efficiency, ensure quality product.
The forced convection annealing furnace generally used now, the type of heating of glass in annealing furnace is upper and lower faces heating, but only glass tempering furnace top adopts transmission of heat by convection, although the problem that Low-E glass surface radiant ratio is low can be solved, but the rate of heat transfer of glass top surface is obviously accelerated, lower heat transfer is comparatively slow comparatively speaking, and the heating of glass above and below is unbalance, and in actual production, low, the large plate surface glass of glass charging ratio easily occurs the defects such as spherical curve.
Utility model content
Namely technical problem to be solved in the utility model is in current glass tempering process, the above-mentioned defect that process furnace exists, and a kind of reasonable in design is provided, hot gas convection current can be strengthened in annealing furnace, homogeneous heating is carried out to glass, the strengthening convection device of defect when avoiding glass tempering.
The utility model solves the problems of the technologies described above adopted technical scheme: comprise body of heater, frequency conversion fan, thermal insulation layer, ceramic roller, electrical heating wire, get gas-bearing formation and airduct passage, ceramic roller is between upper furnace body and lower furnace body.It is characterized in that: be respectively provided with electrical heating wire in upper and lower two bodies of heater, electrical heating wire is all towards ceramic roller; Airduct passage comprises upcast ventilation pipe, crosswind pipe and jet pipe; Blower fan is connected with airduct passage, gets the below that gas-bearing formation is positioned at blower fan in upper furnace body, and electrical heating wire is positioned at the below of getting gas-bearing formation, and jet pipe is positioned at the below of electrical heating wire; Jet pipe in lower furnace body is positioned at the top of electrical heating wire, gets the below that gas-bearing formation is positioned at electrical heating wire.Described frequency conversion fan, the strengthening convection device of getting in gas-bearing formation, electrical heating wire and airduct passage composition body of heater.
Respectively be provided with heating wire tray in upper and lower two bodies of heater described in the utility model, electrical heating wire is arranged in heating wire tray, and upper and lower heating wire tray is all towards ceramic roller.
Jet pipe described in the utility model is air grid shape, and it has production well.
Have two airduct channel connections in upper furnace body described in the utility model to lower furnace body, the windward mouth of pipe of every bar airduct passage is connected with a blower fan; Article two, the jet pipe of airduct passage intermeshes arrangement.
The utility model compared with prior art, there is following positive effect: reasonable in design, upper and lower convector is set in stove, uses recirculation blower to form jet flow, produce the circulated heat of high speed high flow capacity, simultaneously, strengthening bottom convection action, makes glass upper and lower surface realize Synchronous Heating, improves heat-transfer effect, temperature can long-time stable, shortens the production cycle.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation front view;
Fig. 2 is the structural representation of Fig. 1 apoplexy tube passage;
Fig. 3 is the schematic top plan view after Fig. 1 removes thermal insulation layer, and the air grid of jet pipe interlocks mechanism;
Fig. 4 is the right TV structure schematic diagram of upper furnace body.
In figure, arrow is the flow direction of air-flow.
Wherein: 1 is lower furnace body, 2 is lower stove heating wire tray, and 3 is lower hearth electrical heating wire, 4 is jet pipe, and 5 is ceramic roller, and 6 is upper furnace body, 7 is upcast ventilation pipe, 8 is thermal insulation layer, and 9 is frequency conversion fan, and 10 for getting gas-bearing formation, 11 is upper stove heating wire tray, 12 is upper furnace electrical heating wire, and 13 is crosswind pipe, and 14 is glass.
Embodiment
See Fig. 1-4, the present embodiment primarily of frequency conversion fan 9, thermal insulation layer 8, get gas-bearing formation 10, upper stove heating wire tray 11, upper furnace electrical heating wire 12, lower stove heating wire tray 2, lower hearth electrical heating wire 3, ceramic roller 5, upcast ventilation pipe 7, crosswind pipe 13 and jet pipe 4 form.Wherein airduct passage is made up of upcast ventilation pipe 7, crosswind pipe 13 and jet pipe 4; The two ends of crosswind pipe 13 are communicated with jet pipe 4 with upcast ventilation pipe 7 respectively; Jet pipe 4 is air grid shape, and it has production well; Frequency conversion fan 9 in upper furnace body 1 is connected with two airduct passages, and the jet pipe 4 of twice air grid shape intermeshes arrangement; Get the below that gas-bearing formation 10 is positioned at frequency conversion fan 9 in upper furnace body, upper furnace electrical heating wire 12 is arranged in stove heating wire tray 11, and be positioned at the below of getting gas-bearing formation 10, jet pipe 4 is positioned at the below of upper furnace electrical heating wire 12; In lower furnace body 1, lower hearth electrical heating wire 3 is arranged in lower stove heating wire tray 2, and jet pipe 4 is positioned at the top of lower hearth electrical heating wire 3, gets the below that gas-bearing formation 10 is positioned at lower hearth electrical heating wire 3.Ceramic roller 5 is between upper furnace body 6 and lower furnace body 1; Glass 14 is positioned at the top of ceramic roller 5, and contacts with ceramic roller 5; Have a frequency conversion fan 9 to participate in air-supply in lower furnace body 1, this frequency conversion fan 9 is connected with an airduct passage, and the jet pipe 4 of the air grid shape of airduct passage enters in lower furnace body, and the jet pipe 4 of air grid shape is positioned at the below of ceramic roller 5.
During use, the flow direction of air-flow as shown by the arrow.In upper furnace body 1, gas enters through heating and gets in gas-bearing formation 10, and the frequency conversion fan 9 acting on upper furnace body 1 gets gas from getting gas-bearing formation 10; Gas, by forming high velocity air after frequency conversion fan 9, enters in the upcast ventilation pipe 7 of two airduct passages respectively.Air-flow, along upcast ventilation pipe 7, crosswind pipe 13, enters into the jet pipe 4 of air grid shape always.Article two, the jet pipe 4 of airduct passage intermeshes arrangement, forms an air grid mechanism; This air grid mechanism is positioned at above and below glass 14.Air-flow is ejected into the upper surface of glass 14 from the production well of air grid shape jet pipe 4, heats glass 14.Then the air-flow cooled rises to upper furnace electrical heating wire 12 and heats, and finally enters again and gets in gas-bearing formation 10.Circulation like this, forms strengthening convection system in upper furnace body 6.
In lower furnace body 1, the frequency conversion fan 9 acting on lower furnace body 1 gets gas from getting gas-bearing formation 10; Gas, by forming high velocity air after frequency conversion fan 9, enters in the airduct passage being communicated with lower furnace body 1.Air-flow, along upcast ventilation pipe 7, crosswind pipe 13, enters into the jet pipe 4 of air grid shape always, then is sprayed onto the lower surface of glass 14 from the production well of air grid shape jet pipe 4, heats glass 14.Then the air-flow of lower hearth electrical heating wire 3 to cooling heats, and enters again and gets in gas-bearing formation 10.Circulation like this, forms strengthening convection system in lower furnace body 1.
In the present embodiment, the cyclic hardening convection system that the strengthening convection system in upper furnace body 6 and the strengthening convection system in lower furnace body 1 form a whole.Its effect is: in annealing furnace, form a cyclic hardening convective region, enhance bottom convection action, make glass upper and lower surface realize Synchronous Heating, improves heat-transfer effect, solves the mass defect that unbalance appearance is heated in glass above and below.
In the present embodiment, all frequency conversion fans 9 all from gas-bearing formation 10 of getting carry out getting gas.Its effect is: the gas expediently in body of heater 6 and lower furnace body 1 all converges to be got in gas-bearing formation 10, is absorbed, can not produce air suction inlet effect by frequency conversion fan 9.
In the present embodiment, airduct passage plays the effect of plenum chamber, is conducive to the stable of air-flow in airduct passage, substantially identical to the reactive force of glass 14 when making air-flow be ejected into the upper and lower surface of glass 14.
The strengthening convection device of annealing furnace described in the utility model, reasonable in design, energy utilization rate is high, to the homogeneous heating of glass, avoids the defect in toughening process, has good result of use.

Claims (4)

1. the strengthening convection device of an annealing furnace, comprise body of heater, frequency conversion fan, thermal insulation layer, ceramic roller, electrical heating wire, get gas-bearing formation and airduct passage, ceramic roller is between upper furnace body and lower furnace body, it is characterized in that: be respectively provided with electrical heating wire in upper and lower two bodies of heater, electrical heating wire is all towards ceramic roller; Airduct passage comprises upcast ventilation pipe, crosswind pipe and jet pipe; Blower fan is connected with airduct passage, gets the below that gas-bearing formation is positioned at blower fan in upper furnace body, and electrical heating wire is positioned at the below of getting gas-bearing formation, and jet pipe is positioned at the below of electrical heating wire; Jet pipe in lower furnace body is positioned at the top of electrical heating wire, gets the below that gas-bearing formation is positioned at electrical heating wire, described frequency conversion fan, the strengthening convection device of getting in gas-bearing formation, electrical heating wire and airduct passage composition body of heater.
2. strengthening convection device according to claim 1, is characterized in that: be respectively provided with heating wire tray in described upper and lower two bodies of heater, and electrical heating wire is arranged in heating wire tray, and upper and lower heating wire tray is all towards ceramic roller.
3. strengthening convection device according to claim 1, is characterized in that: described jet pipe is air grid shape, and it has production well.
4. strengthening convection device according to claim 1 and 2, is characterized in that: have two airduct channel connections in described upper furnace body to lower furnace body, and the windward mouth of pipe of every bar airduct passage is connected with a blower fan; Article two, the jet pipe of airduct passage intermeshes arrangement.
CN201420211936.4U 2014-04-28 2014-04-28 A kind of strengthening convection device of annealing furnace Expired - Fee Related CN204111586U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420211936.4U CN204111586U (en) 2014-04-28 2014-04-28 A kind of strengthening convection device of annealing furnace

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Application Number Priority Date Filing Date Title
CN201420211936.4U CN204111586U (en) 2014-04-28 2014-04-28 A kind of strengthening convection device of annealing furnace

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Publication Number Publication Date
CN204111586U true CN204111586U (en) 2015-01-21

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105936586A (en) * 2016-06-30 2016-09-14 广东富山玻璃机械有限公司 Glass heating furnace and heating method
CN106986528A (en) * 2017-05-04 2017-07-28 绥中远图科技发展有限公司 A kind of glass tempering furnace convection heating system
CN108751680A (en) * 2018-08-20 2018-11-06 武汉武耀安全玻璃股份有限公司 A kind of thermal balance adjusting part in annealing furnace
CN110526560A (en) * 2018-09-21 2019-12-03 安徽恒春玻璃股份有限公司 A kind of annealing furnace contracurrent system equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105936586A (en) * 2016-06-30 2016-09-14 广东富山玻璃机械有限公司 Glass heating furnace and heating method
CN106986528A (en) * 2017-05-04 2017-07-28 绥中远图科技发展有限公司 A kind of glass tempering furnace convection heating system
CN108751680A (en) * 2018-08-20 2018-11-06 武汉武耀安全玻璃股份有限公司 A kind of thermal balance adjusting part in annealing furnace
CN108751680B (en) * 2018-08-20 2023-12-15 武汉武耀安全玻璃股份有限公司 Heat balance adjusting assembly in tempering furnace
CN110526560A (en) * 2018-09-21 2019-12-03 安徽恒春玻璃股份有限公司 A kind of annealing furnace contracurrent system equipment

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20150121

Termination date: 20180428