CN1861535A - Energy saving strong convection sheet glass heating oven - Google Patents
Energy saving strong convection sheet glass heating oven Download PDFInfo
- Publication number
- CN1861535A CN1861535A CN 200610049746 CN200610049746A CN1861535A CN 1861535 A CN1861535 A CN 1861535A CN 200610049746 CN200610049746 CN 200610049746 CN 200610049746 A CN200610049746 A CN 200610049746A CN 1861535 A CN1861535 A CN 1861535A
- Authority
- CN
- China
- Prior art keywords
- heater
- sheet glass
- air
- energy
- strong convection
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 66
- 239000005357 flat glass Substances 0.000 title claims abstract description 35
- 239000000919 ceramic Substances 0.000 claims description 21
- 238000004134 energy conservation Methods 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract description 28
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 230000005855 radiation Effects 0.000 description 7
- 229910001120 nichrome Inorganic materials 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Abstract
An energy-saving plate glass heating furnace with strong convection is composed of a furnace body consisting of the life upper half and the lower half fixed to ground and with glass plate inlet and outlet gates, several groups of upper and lower refractory blowers, the upper and lower pipelines with the inlets connected to the air outlets of blowers and outlets to generate strong convection, the primary heaters at the air inlets of said blowers, and the secondary heaters at the air outlets of said pipelines.
Description
Technical field
The present invention relates to a kind of process furnace that is specifically designed to glass tempering equipment, referring in particular to a kind of is pyrotoxin with the electrically heated, with hot-air convection is main heat transfer mode, with ceramic roller conduction and the steel piece surface thermal radiation sheet glass heating kiln as auxiliary heat conduction pattern.
Background technology
Glass plate heating furnace in the market is based on radiation heating, assists with the ceramic roller surface sheet glass lower surface conduction heating.Because sheet glass must move around on roller-way, so the ceramic roller surface must exist sheet glass lower surface conduction heating, and its amount of thermal conduction is uncontrolled.So-called radiation heating is exactly that the infrared light that sends when utilizing the electrical heating wire energising directly carries out radiation heating to the upper and lower surface of sheet glass.
But because different types of glass blackness difference, when producing the high glass of reflectivity and transmissivity, this type of heating can exist heat-up time long, the problem that heat transfer efficiencies is low.Especially when processing LOW-E glass and counter radiation glass, the pottery roller causes the lower glass surface heating too fast, and the rete on surface on glass reflects away the radiant heat from the top heating unit consumingly, so the heating unit of bottom again can be to glass heats twice simultaneously, i.e. thermal radiation penetrates glass and is turned back again by superficial film reflection on glass from below.It is inhomogeneous that this phenomenon is called as heating, and shape, planeness, optical quality and glass surface that meeting directly influence behind the glass tempering produce defective, greatly change the resistance value of LOW-E glass surface even.
Utility model patent ZL03275747.6 discloses a kind of balanced heated glass process furnace down on glass that makes, and comprises body of heater and roller-way, is provided with the cold air nozzle below roller-way.The surface temperature that this technical scheme is regulated ceramic roller by cold duct and cold air nozzle, energy waste is big, regulates the control difficulty.
Application for a patent for invention 200410046386.6 discloses a kind of convection type glass plate heating furnace, this process furnace comprises body of heater, body of heater is provided with sheet glass and imports and exports, be provided with glass sheets mechanism in the body of heater, be provided with the high temperature air jet device in the body of heater, the high temperature air jet device, blower and pipeline and body of heater inner chamber constitute a gas circulation loop, high-temperature gas ejiction opening on the high temperature air jet device and the gas channel between the blower fan are provided with the flame radiaton pipe heater, this technical scheme has solved the uneven shortcoming of heating, but its blower fan is arranged at the body of heater outside, the heat of body of heater inside can lose because of the air flowing between inside and outside the body of heater, causes the wasting of resources.
Summary of the invention
The invention provides a kind of energy-conservation strong convection sheet glass heating oven of more efficient, more energy-conservation, pollution-free, the easier control of temperature equilibrium.
A kind of energy-conservation strong convection sheet glass heating oven, comprise body of heater, body of heater is cooperated with the lower furnace body that is fixed in ground by liftable upper furnace body and forms, body of heater is provided with sheet glass import fire door and outlet fire door, be provided with the ceramic roller of transporting flat glass in the body of heater, be provided with the some groups of heatproof windmills of symmetric arrangement up and down in the described body of heater, the air outlet of each heatproof windmill is communicated with corresponding pipeline, on, following pipeline is outlet air end is symmetrically arranged in ceramic roller towards ceramic roller upper and lower, form convection current up and down between the pipeline, the advancing of heatproof windmill, air outlet is by pipeline and body of heater inner chamber cooperate formation one gas circulation loop up and down; The blast inlet place of each heatproof windmill is provided with a main heating source, and the outlet air end place of each pipeline is provided with a heating source.
Described pipeline comprises some blast mains, and the two ends of each blast main are communicated with the air outlet of corresponding heatproof windmill, are communicated with some branch wind pipes on each blast main, and upper and lower branch wind pipe is outlet air end is symmetrically distributed in ceramic roller towards ceramic roller upper and lower.
Every square metre of area is provided with at least 2 independences and is the branch wind pipe of symmetric arrangement up and down in the described body of heater.
Outlet air end the place ahead of described each branch wind pipe is provided with temperature sensor.
Described each branch wind pipe is connected on the corresponding blast main by flexible suspension mechanism.
Inwall is provided with thermal insulation layer around the described body of heater.
Be provided with some air pressure balance sheets spaced apart in the described blast main.
The outlet air end of described each branch wind pipe is provided with some air squit holes, and the distribution density of air squit hole is 1100～1400 every square metre; The air squit hole protrudes from the branch wind pipe surface.
The present invention has abandoned traditional radiation heating mode, adopt nichrome wire as the heating main body, utilize it pollution-free, the advantage that the temperature control accuracy is high, with the medium of warm air molecule as the heat transmission, with convection current heat conduction as topmost heat passage means, to be installed in simultaneously in the process furnace to reduce thermosteresis for the pipeline that convection of air produces the heatproof windmill of power and delivery air, make original inevitable and uncontrolled ceramic roller surface become faint relatively to the influence power of sheet glass lower surface conduction heating, thereby reach whole each position of stove glass of control exactly by the purpose of even heating, no matter making that heating furnace is much all can guarantee each position upper and lower surface temperature unanimity of sheet glass, and the lowland reaches the temperature of toughened glass heating process requirement simultaneously as far as possible.
Process furnace of the present invention has been eliminated traditional heating stove ubiquitous heating non-uniform phenomenon when heated plate glass effectively, improved thermo-efficiency, especially when the LOW-E glass of heating high-reflectivity, higher heating efficiency can be obtained, the purpose of high-efficiency environment friendly energy-conservation can be reached.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the side-view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the structure enlarged diagram of heatproof windmill of the present invention and blast main junction;
Fig. 5 is the structural representation of branch wind pipe of the present invention;
Fig. 6 is the structural representation of Fig. 5 bottom surface;
Fig. 7 is the structure enlarged view that goes out tuyere of Fig. 5;
Fig. 8 is the structural representation of the another kind of embodiment of heatproof windmill of the present invention;
Fig. 9 is the vertical view of Fig. 8.
Embodiment
As Fig. 1, shown in 2, a kind of energy-conservation strong convection sheet glass heating oven, comprise body of heater 1, body of heater 1 is cooperated with the lower furnace body 3 that is fixed in ground by liftable upper furnace body 2 and forms, inwall is provided with thermal insulation layer 17 around the body of heater 1, body of heater 1 is provided with sheet glass import fire door 4 and outlet fire door 5, be provided with the ceramic roller 16 of transporting flat glass 15 in the body of heater 1, be provided with the some groups of heatproof windmills 6 of symmetric arrangement up and down in the body of heater 1, the air outlet 9 of each heatproof windmill 6 is communicated with corresponding pipeline, pipeline comprises some blast mains 10, the two ends of each blast main 10 are communicated with the air outlet 9 of corresponding heatproof windmill 6, be communicated with some branch wind pipes 12 by flexible suspension mechanism 18 on each blast main 10, on, following branch wind pipe is outlet air end is symmetrically distributed in ceramic roller 16 towards ceramic roller 16 upper and lower, advancing of heatproof windmill 6, air outlet 8,9 pass through pipeline and body of heater 1 inner chamber cooperation formation one gas circulation loop up and down, form convection current up and down between the pipeline; Blast inlet 8 places of each heatproof windmill 6 are provided with a main heating source 19, and the outlet air end place of each branch wind pipe 12 is provided with a heating source 13.
Each blast main 10 inside is provided with some balancing patches 11 that are used for air pressure between balanced each branch wind pipe 12 spaced apart, and pipeline is airtight pipeline, can intactly air intake and air-out be isolated, to ensure the round-robin integrity.
Each heatproof windmill 6 produces power for convection of air, warm air evenly is transported to each blast main 10 and branch wind pipe 12, its corresponding motor 7 is located at body of heater 1 outside, and the air in the body of heater 1 sucks and bloated from air outlet 9 through the blast inlet 8 of heatproof windmill 6, in the body of heater 1 inner hot air circulate that forms.In the full cycle process, the air pressure inside and the external pressure of heating furnace body 1 remain basically stable, and do not have body of heater 1 air flowing between inside and outside, and its heat is intactly put aside in body of heater 1 inside, helps reducing the loss of heat.
Heatproof windmill 6 can be located at body of heater 1 about two walls, also can be arranged at the top and the bottom of body of heater 1, shown in Fig. 8,9, when adopting this mounting means, can decide the particular location of heatproof windmill 6 according to the real space at process furnace top.
As shown in Figure 3, process furnace of the present invention adopts horizontal body of heater, and sheet glass 15 can backhaul row on the ceramic roller in lying against body of heater 1 16, and every square metre of area is provided with at least 2 independences and is the branch wind pipe 12 of symmetric arrangement up and down in the body of heater 1.
As shown in Figure 4, blast inlet 8 places of each heatproof windmill 6 are provided with a main heating source 19, and the outlet air end place of each branch wind pipe 12 is provided with a heating source 13.
Can there be resistant to elevated temperatures heating panel in the composition in electrothermal wire heating source yet, in this structure, nichrome wire surface heat directly takes glass 15 surfaces to by air molecule, its heat conduction efficiency and have the heat transfer efficiency that is not both between the electrothermal wire heating group of resistant to elevated temperatures heating panel that 16% difference is arranged, speed of response has 12% difference.
During energising, the heating that reddens of the nichrome wire of heating source, the stainless steel ironware around it also reddens thereupon, forces the air molecule that the bloats surface with the heat transferred glass 15 of nichrome wire surface and stainless steel ironware through heatproof windmill 6.
Outlet air end the place ahead of each branch wind pipe 12 is provided with temperature sensor 14, prop up temperature sensor 14 controls of pyrotoxin 13 by correspondence, temperature sensor 14 is installed on the position apart from glass 15 surperficial 40mm height, can respond to the real-time temperature on glass 15 surfaces exactly, thus the heat-up time of a control pyrotoxin 13.The electric heating control mode of the process furnace of difference and other types, temperature sensor 14 of the present invention is mounted in nearly glass end, but not nearly pyrotoxin end.
Shown in Fig. 5,6, the outlet air end of each branch wind pipe 12 is provided with some air squit holes 20, and the density of air squit hole 20 is 1100～1400 every square metre, and air squit hole 20 protrudes from branch wind pipe 12 surfaces, as shown in Figure 7.
During process furnace work, heatproof windmill 6 is in running order all the time, and air is in recurrent state all the time in the body of heater 1.
After sheet glass 15 enters process furnace from import fire door 4, temperature sensor 14 can be sensed the reduction of temperature at once, and an indication pyrotoxin 13 begins heating simultaneously, and the heat of generation is blowed to two surfaces up and down of sheet glass 15 equably simultaneously from air squit hole 20 through pipeline by air molecule; All simultaneously temperature sensors 14 are judged unbalanced degree of rate of heating and position after than right temperature head between mutually, and indicate heatproof windmill 6 to change air flow quantitys simultaneously, to reach whole process furnace space of a whole page temperature rise speed isostatic purpose.
The rate of heating on sheet glass 15 surfaces can be controlled by heat transfer speed and temperature, the heat that comes from ceramic roller 16 can make the heating of glass 15 lower surfaces too fast, but, can remedy the imbalance of heat transfer speed up and down because the air quantity of each heatproof windmill 6 can be adjusted arbitrarily.Simultaneously, be arranged at the real-time temperature that temperature sensor 14 between branch wind pipe 12 and the sheet glass 15 can accurately be sensed glass 15, and whether begin heating by its control electrothermal wire heating source.The adjustment by heatproof windmill 6 air quantity and the instant control of temperature sensor 14 can be controlled the temperature in the body of heater 1 exactly.
Claims (9)
1. energy-conservation strong convection sheet glass heating oven, comprise body of heater (1), body of heater (1) is cooperated by liftable upper furnace body (2) and the lower furnace body (3) that is fixed in ground and forms, body of heater (1) is provided with sheet glass import fire door (4) and outlet fire door (5), be provided with the ceramic roller (16) of transporting flat glass (15) in the body of heater (1), it is characterized in that: be provided with the some groups of heatproof windmills (6) of symmetric arrangement up and down in the described body of heater (1), the air outlet (9) of each heatproof windmill (6) is communicated with corresponding pipeline, on, following pipeline is outlet air end is symmetrically arranged in ceramic roller (16) towards ceramic roller (16) upper and lower, form convection current up and down between the pipeline, the advancing of heatproof windmill (6), air outlet (8), (9) by pipeline and body of heater (1) inner chamber cooperate formation one gas circulation loop up and down; The blast inlet (8) of each heatproof windmill (6) locates to be provided with a main heating source (19), and the outlet air end place of each pipeline is provided with a heating source (13).
2. energy-conservation strong convection sheet glass heating oven as claimed in claim 1, it is characterized in that: described pipeline comprises some blast mains (10), the two ends of each blast main (10) are communicated with the air outlet (9) of corresponding heatproof windmill (6), be communicated with some branch wind pipes (12) on each blast main (10), upper and lower branch wind pipe is outlet air end is symmetrically distributed in ceramic roller (16) towards ceramic roller (16) upper and lower.
3. energy-conservation strong convection sheet glass heating oven as claimed in claim 2 is characterized in that: every square metre of area is provided with at least 2 independences and is the branch wind pipe (12) of symmetric arrangement up and down in the described body of heater (1).
4. energy-conservation strong convection sheet glass heating oven as claimed in claim 2 is characterized in that: outlet air end the place ahead of described each branch wind pipe (12) is provided with temperature sensor (14).
5. energy-conservation strong convection sheet glass heating oven as claimed in claim 2 is characterized in that: described each branch wind pipe (12) is connected on the corresponding blast main (10) by flexible suspension mechanism (18).
6. energy-conservation strong convection sheet glass heating oven as claimed in claim 1 is characterized in that: described body of heater (1) inwall all around is provided with thermal insulation layer (17).
7. energy-conservation strong convection sheet glass heating oven as claimed in claim 1 is characterized in that: be provided with some air pressure balance sheets (11) spaced apart in described each blast main (10).
8. energy-conservation strong convection sheet glass heating oven as claimed in claim 1, it is characterized in that: the outlet air end of described each branch wind pipe (12) is provided with some air squit holes (20) equably, and the distribution density of air squit hole (20) is 1100～1400 every square metre.
9. energy-conservation strong convection sheet glass heating oven as claimed in claim 8 is characterized in that: described air squit hole (20) protrudes from branch wind pipe (12) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610049746 CN1861535A (en) | 2006-03-08 | 2006-03-08 | Energy saving strong convection sheet glass heating oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610049746 CN1861535A (en) | 2006-03-08 | 2006-03-08 | Energy saving strong convection sheet glass heating oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1861535A true CN1861535A (en) | 2006-11-15 |
Family
ID=37389079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610049746 Pending CN1861535A (en) | 2006-03-08 | 2006-03-08 | Energy saving strong convection sheet glass heating oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1861535A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2368855A2 (en) | 2010-03-15 | 2011-09-28 | Glaston Services Ltd. Oy | Apparatus for heating glass sheets for tempering |
| CN102344242A (en) * | 2011-07-21 | 2012-02-08 | 杭州精工机械有限公司 | Heating furnace with numerical control convective mixed radiation heating mode and heating method |
| CN102603174A (en) * | 2012-04-11 | 2012-07-25 | 上海钰立机械有限公司 | Forced convection heating device of low-radiation coated glass |
| CN102690047A (en) * | 2011-03-25 | 2012-09-26 | 洛阳北方玻璃技术股份有限公司 | Heating furnace for glass tempering |
| CN102690048A (en) * | 2011-03-25 | 2012-09-26 | 洛阳北方玻璃技术股份有限公司 | Heating method of heating furnace for glass tempering |
| CN104457243A (en) * | 2014-11-05 | 2015-03-25 | 深圳市沃尔核材股份有限公司 | Method for reducing heat loss and energy-saving heating furnace using same |
| CN108692566A (en) * | 2018-05-24 | 2018-10-23 | 浙江中硅新材料有限公司 | A kind of heating furnace |
| CN119146708A (en) * | 2024-10-30 | 2024-12-17 | 广州星业新材料有限公司 | Tunnel drying furnace with uniform heating |
-
2006
- 2006-03-08 CN CN 200610049746 patent/CN1861535A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2368855A3 (en) * | 2010-03-15 | 2012-10-10 | Glaston Services Ltd. Oy | Apparatus for heating glass sheets for tempering |
| EP2368855A2 (en) | 2010-03-15 | 2011-09-28 | Glaston Services Ltd. Oy | Apparatus for heating glass sheets for tempering |
| CN102690048B (en) * | 2011-03-25 | 2015-03-11 | 洛阳北方玻璃技术股份有限公司 | Heating method of heating furnace for glass tempering |
| CN102690047A (en) * | 2011-03-25 | 2012-09-26 | 洛阳北方玻璃技术股份有限公司 | Heating furnace for glass tempering |
| CN102690048A (en) * | 2011-03-25 | 2012-09-26 | 洛阳北方玻璃技术股份有限公司 | Heating method of heating furnace for glass tempering |
| CN102344242A (en) * | 2011-07-21 | 2012-02-08 | 杭州精工机械有限公司 | Heating furnace with numerical control convective mixed radiation heating mode and heating method |
| CN102344242B (en) * | 2011-07-21 | 2015-10-21 | 杭州精工机械有限公司 | The process furnace of numerical control convective mixed radiation heating mode and heating means |
| CN102603174A (en) * | 2012-04-11 | 2012-07-25 | 上海钰立机械有限公司 | Forced convection heating device of low-radiation coated glass |
| CN102603174B (en) * | 2012-04-11 | 2016-03-30 | 上海钰立机械有限公司 | The forced convection heating unit of low radiation coated glass |
| CN104457243A (en) * | 2014-11-05 | 2015-03-25 | 深圳市沃尔核材股份有限公司 | Method for reducing heat loss and energy-saving heating furnace using same |
| CN104457243B (en) * | 2014-11-05 | 2017-01-11 | 深圳市沃尔核材股份有限公司 | Method for reducing heat loss and energy-saving heating furnace using same |
| CN108692566A (en) * | 2018-05-24 | 2018-10-23 | 浙江中硅新材料有限公司 | A kind of heating furnace |
| CN119146708A (en) * | 2024-10-30 | 2024-12-17 | 广州星业新材料有限公司 | Tunnel drying furnace with uniform heating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201567295U (en) | Heated-air circulation degreasing furnace | |
| CN1861535A (en) | Energy saving strong convection sheet glass heating oven | |
| CN102494529A (en) | Constant-temperature drying box utilizing flue gas waste heat for heating | |
| CN1296784C (en) | Automated control experimental apparatus for micro simulated tunnel kiln | |
| CN101372390A (en) | Forced hot air circulation convection glass tempering technology | |
| CN208960319U (en) | A kind of double heat source baking oven heaters in cement dipping machine | |
| CN201381277Y (en) | Grid array heating glass tempering furnace | |
| CN104164803A (en) | Gas direct-fired heating drying oven | |
| CN1706762A (en) | Method and apparatus for heating glass panels | |
| CN209872774U (en) | Convection type glass heating furnace | |
| CN102747202A (en) | Biomass annealing furnace | |
| CN2727667Y (en) | Automatic control experimental device of mini type simulated tunnel kiln | |
| CN206321074U (en) | Heat energy recycle device is used in electrotechnical porcelain product production | |
| CN1293002C (en) | Convective glass sheet heating furnaces | |
| CN208671695U (en) | A kind of bicirculating box electric kiln of realization internal gas flow | |
| CN1847417A (en) | An Oil-electric Composite Heating Roller Mesh Belt Furnace | |
| CN103471345B (en) | Method for drying industrial materials by using high-temperature heat pump and radiation | |
| CN110447668B (en) | A secondary heat exchange tunnel furnace | |
| CN201184645Y (en) | Electric heating machine | |
| CN108826986B (en) | Box electric kiln convenient to material bottom is built on stilts to be placed and heat flows | |
| CN207608489U (en) | A kind of wind row formula forced convertion radiation blowing device | |
| CN100373119C (en) | Assembly line safe hot air heating system | |
| CN207197184U (en) | A kind of induction type baking oven igniting alarming device | |
| CN201662309U (en) | Jet tunnel-type drying furnace | |
| CN205133682U (en) | High -efficient aluminium or aluminum alloy tube base heating furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20061115 |