CN103922575A - Energy-saving system of cooling air hose of glass annealing kiln and cooling method of glass tape - Google Patents
Energy-saving system of cooling air hose of glass annealing kiln and cooling method of glass tape Download PDFInfo
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- CN103922575A CN103922575A CN201410142622.8A CN201410142622A CN103922575A CN 103922575 A CN103922575 A CN 103922575A CN 201410142622 A CN201410142622 A CN 201410142622A CN 103922575 A CN103922575 A CN 103922575A
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Abstract
The invention relate to an energy-saving system of a cooling air hose of a glass annealing kiln and a cooling method of a glass tape. Each pipeline is equipped with a draught fan which is provided with a frequency converter, and the frequency converters are freely controlled by an industrial personal computer to reaching the purpose of adjusting the rotating speed of the draught fans, so that each branch air hose is more convenient to control. The size of the cooling air amount of each branch air hose can be conveniently adjusted according to the temperature adjusting demands of glass plates in different regions, so that the temperatures in each region in the annealing kiln is reasonable and the best glass annealing effect is achieved. The equipment investment is reduced, the pipeline system is simplified, the energy utilization rate of the manufacturer is greatly improved and the electric energy consumption of the ventilating system of the annealing kiln is reduced, so that the effect of saving energy and protecting the environment is realized.
Description
Technical field
The present invention relates to the annealing furnace technical field of glass production line, especially a kind of lear cooling duct energy conserving system and the method for cooling to glass ribbon.
Background technology
Annealing furnace is one of glass production line three large Thermal Equipments, its effect be by the temperature of sheet glass by 600-650 ℃, according to the requirement of annealing process, what have control is reduced to 70-90 ℃.Adopt the complete electric structure of all steel, by some joints, formed, according to annealing curve, be longitudinally divided into several districts, in each district, according to the requirement of glass sheet temperatures and annealing process, adopt different heating cooling system, to complete good annealing and reasonably cooling.At present, on the annealing furnace of glass production line, high temp glass plate distributes a large amount of heats during cooling in annealing furnace, and annealing furnace cooling system will expel from kiln heat by heat exchange form; Existing annealing furnace ventilation cooling system has a lot of vent lines, on pipeline, there are a lot of butterfly valves, by the size of each wind path air quantity of regulating butterfly valve regulation, on pipeline, the application of butterfly valve has realized the function that air quantity regulates, also the resistance that has increased pipeline, has increased the consumption of electric energy, therefore simultaneously, when how to reduce resistance on pipeline, realizing the adjusting of air quantity on each wind path, is the key that annealing furnace ventilation cooling system reduces energy consumption.
What cooling air adopted is natural wind, due to season and round the clock envrionment temperature cause wind-warm syndrome to have a greater change, the consumption of cooling air has a long way to go, such as in the winter time only a needs air quantity seldom just can meet processing requirement, sheet glass is in annealing process, and it is that middle part is high that transverse temperature distributes, and limit portion is low, aborning, the automatic butterfly valve aperture of different positions is different, conventionally, what annealing furnace blower fan used is all the motor of quota output rating, in the time of need to reducing air quantity, general regulated valve and the baffle opening of adopting controlled air force, current annealing furnace glass production line adopts a Fans to connect many bye-passes, therefore pipeline must have butterfly valve could realize the adjusting of air quantity, while regulating the air-valve on a bye-pass, air quantity in other bye-pass can increase or reduce, affected the stable of annealing temperature, the running resistance of blower fan increases, increased power consumption, aggravated the damage of valve body to cooling system.
Due to lear use is the variable valve that control accuracy is lower, under the effect of high-power blower, the actual ventilation of butterfly valve is not exclusively subject to the control of valve opening, even in the situation of closing, still the ventilation that has 5% left and right, has so not only increased control difficulty, and for limit portion, does not need the thin glass of cooling, also need to carry out additional heat by electric heater, additionally increased the consumption of electric energy.
The patent document that is 201320071464.2 through retrieval request number has been announced a kind of plate glass annealing furnace air-cooling device, both sides at sheet glass are respectively equipped with cooling duct, at the front end of cooling duct, be provided with the cooling air ozzle of tilting 45 degree, on cooling air ozzle, connect the baffle plate paralleling with sheet glass, be difficult to, by the high-temperature gas cooling in annealing furnace, be difficult to guarantee sheet glass Homogeneouslly-radiating.
In view of the foregoing, now invent a kind of lear cooling duct energy conserving system and the method for cooling to glass ribbon.
Summary of the invention
The object of the invention is in order to overcome deficiency of the prior art, a kind of lear cooling duct energy conserving system and the method for cooling to glass ribbon are provided, every pipeline is equipped with to a Fans, every Fans is equipped with a frequency transformer, by an industrial computer, control neatly many frequency transformers, to reach the object that regulates rotation speed of fan, make the control of each branch wind pipe convenient, can be according to the temperature adjustment requirement of the sheet glass of different zones, regulate easily each branch wind pipe by the size of cooling air quantity, make the temperature in each region in annealing furnace more reasonable, make glass annealing reach best effect, reduce facility investment, simplified piping system, significantly improved the energy utilization rate of using producer, reduced the power consumption of annealing furnace ventilation system, reached the effect of energy-conserving and environment-protective.
The present invention to achieve these goals, adopts following technical scheme: a kind of lear cooling duct energy conserving system and the method for cooling to glass ribbon are by annealing furnace, blast main, the outer branch wind pipe of kiln, blower fan, glass ribbon, branch wind pipe in kiln, blast inlet, frequency transformer, industrial computer, blast inlet, thermopair forms; Annealing furnace arranges blast main outward, and one end of blast main sets out air port, the outer branch wind pipe of at least 2 kilns of a side setting of blast main; Middle part in annealing furnace arranges glass ribbon, the corresponding glass ribbon in above and below in annealing furnace arranges many group thermopairs, every group is at least 2, between many group thermopairs, corresponding glass ribbon arranges branch wind pipe in many group kilns, every group is at least 2, the interior branch wind pipe of kiln in annealing furnace and the outer corresponding setting of branch wind pipe of kiln outside annealing furnace, in the corresponding kiln in body of wall above and below of annealing furnace, branch wind pipe arranges blast inlet, and a side of annealing furnace arranges industrial computer; On the every outer branch wind pipe of kiln, blower fan is set; Between industrial computer and each blower fan, frequency transformer is respectively set, frequency transformer and industrial computer, blower fan connection arrange; The outer branch wind pipe of kiln and the corresponding setting of branch wind pipe at least one group of kiln.
In annealing furnace, the thermopair of above and below is measured the temperature of operating glass ribbon above and below, and temperature data is transferred to industrial computer, industrial computer is by the rotating speed of the outer branch wind pipe fan of Frequency Converter Control kiln, cold air is sucked to branch wind pipe in kiln from the blast inlet of annealing furnace, cold air in kiln in branch wind pipe and the hot gas indirect heat exchange in annealing furnace, cold air in heat exchange after annealing kiln makes glass ribbon evenly cooling, cold air in kiln in branch wind pipe enters the outer branch wind pipe of kiln and blast main successively after being heated, from the exhaust outlet discharge chamber of blast main.
Industrial computer receives after the temperature data of thermopair transmission, industrial computer controls according to the temperature parameter of setting the rotating speed that frequency transformer regulates the outer branch wind pipe fan of kiln, increase or reduce the air output of the interior branch wind pipe of kiln of different zones, make the temperature in space above or below glass ribbon remain on 610 ℃-380 ℃, make glass ribbon evenly cooling.
In annealing furnace, the thickness of applicable glass ribbon is 1.5mm-19mm.
The invention has the beneficial effects as follows: every pipeline is equipped with to a Fans, every Fans is equipped with a frequency transformer, by an industrial computer, control neatly many frequency transformers, to reach the object that regulates rotation speed of fan, make the control of each branch wind pipe convenient, can, according to the temperature adjustment requirement of the sheet glass of different zones, regulate easily each branch wind pipe by the size of cooling air quantity, make the temperature in each region in annealing furnace more reasonable, make glass annealing reach best effect.
Use industrial computer to control, improved the quality of glass, effectively energy-saving and cost-reducing, extend annealing furnace work-ing life, reduce again product cost; For energy-conservation in the urgent need to the requirement with quality product is improved constantly, in addition adopt that variable-frequence governor (abbreviation frequency transformer) is easy to operate, non-maintaining, control accuracy is high, speed control by frequency variation has the advantages such as efficiency is high, speed-regulating range width, precision is high, speed governing is steady, stepless change, thereby the method that adopts transducer drive starts progressively to replace the control program of air door, baffle plate, valve, just can reach obvious saves energy, fall low consumed object.
While now normally producing with annealing furnace, the use power of annealing furnace is 620-700KW, the electric energy consuming for 1 year is 5-6 1,000,000 degree electricity, when annealing furnace of the present invention is normally produced, the use power of annealing furnace is 300-400KW, and the electric energy consuming for a year is 3-4 1,000,000 degree electricity, and every joint can be saved 1-2 1,000,000 degree electricity; The present invention can adjust the rotating speed of blower fan according to actual needs, and most time, the rotating speed of blower fan, all lower than rated speed, has not only reduced energy consumption, and has greatly extended the work-ing life of equipment; Butterfly valve need to be installed in pipeline, reduced the resistance of air in pipeline, reduced facility investment, simplify piping system, reduced pipeline consumption, and avoided the phase mutual interference between pipeline, reduced the difficulty of controlling, significantly improve the energy utilization rate of using producer, reduced the power consumption of annealing furnace ventilation system, reached the effect of energy-conserving and environment-protective.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is, general assembly structural representation;
Fig. 2 is, the A-A cross-sectional view of Fig. 1;
In Fig. 1,2: annealing furnace 1, blast main 2, the outer branch wind pipe 3 of kiln, blower fan 4, glass ribbon 5, branch wind pipe 6 in kiln, blast inlet 7, frequency transformer 8, industrial computer 9, blast inlet 10, thermopair 11.
Embodiment
Below in conjunction with embodiment and embodiment, the present invention is described in further detail:
Embodiment 1
The outer blast main 2 that arranges of annealing furnace 1, one end of blast main 2 sets out air port 10, the outer branch wind pipe 3 of at least 2 kilns of a side setting of blast main 2; Middle part in annealing furnace 1 arranges glass ribbon 5, the corresponding glass ribbon 5 in above and below in annealing furnace 1 arranges many group thermopairs 11, every group is at least 2, between many group thermopairs 11, corresponding glass ribbon 5 arranges branch wind pipe 6 in many group kilns, every group is at least 2, the interior branch wind pipe 6 of kiln in annealing furnace 1 and the outer corresponding setting of branch wind pipe 3 of kiln outside annealing furnace 1, in the corresponding kiln in body of wall above and below of annealing furnace 1, branch wind pipe 6 arranges blast inlet 7, and a side of annealing furnace 1 arranges industrial computer 9; On the every outer branch wind pipe 3 of kiln, blower fan 4 is set; Between industrial computer 9 and each blower fan 4, frequency transformer 8 is respectively set, frequency transformer 8 and industrial computer 9, blower fan 4 connection settings; The outer branch wind pipe 3 of kiln and the corresponding setting of branch wind pipe 6 at least one group of kiln.
Embodiment 2
The temperature of 11 pairs of operating glass ribbon 5 above and belows of thermopair of annealing furnace 1 interior above and below is measured, and temperature data is transferred to industrial computer 9, industrial computer 9 is controlled the rotating speed of outer branch wind pipe 3 fans 4 of kiln by frequency transformer 8, cold air is sucked to branch wind pipe 6 in kiln from the blast inlet 7 of annealing furnace 1, cold air in kiln in branch wind pipe 6 and the hot gas indirect heat exchange in annealing furnace 1, cold air in heat exchange after annealing kiln 1 makes glass ribbon 5 evenly cooling, cold air in kiln in branch wind pipe 6 enters the outer branch wind pipe 3 of kiln and blast main 2 successively after being heated, from exhaust outlet 10 discharge chambers of blast main 2.
Embodiment 3
Industrial computer 9 receives after the temperature data of thermopair 11 transmission, industrial computer 9 controls according to the temperature parameter of setting the rotating speed that frequency transformer 8 regulates outer branch wind pipe 3 fans 4 of kiln, increase or reduce the air output of the interior branch wind pipe 6 of kiln of different zones, make the temperature in space above or below glass ribbon 5 remain on 610 ℃-380 ℃, make glass ribbon 5 evenly cooling.
Embodiment 4
The thickness of the interior applicable glass ribbon 5 of annealing furnace 1 is 1.5mm-19mm.
Claims (4)
1. a lear cooling duct energy conserving system, by annealing furnace (1), blast main (2), the outer branch wind pipe (3) of kiln, blower fan (4), glass ribbon (5), branch wind pipe (6) in kiln, blast inlet (7), frequency transformer (8), industrial computer (9), blast inlet (10), thermopair (11) forms; It is characterized in that: annealing furnace (1) is outer arranges blast main (2), and one end of blast main (2) sets out air port (10) the outer branch wind pipe (3) of at least 2 kilns of a side setting of blast main (2); middle part in annealing furnace (1) arranges glass ribbon (5), the corresponding glass ribbon in above and below (5) in annealing furnace (1) arranges many group thermopairs (11), every group is at least 2, between many group thermopairs (11), corresponding glass ribbon (5) arranges branch wind pipe (6) in many group kilns, every group is at least 2, branch wind pipe (6) kiln outer branch wind pipe (3) the corresponding setting outer with annealing furnace (1) in kiln in annealing furnace (1), in the corresponding kiln in body of wall above and below of annealing furnace (1), branch wind pipe (6) arranges blast inlet (7), one side of annealing furnace (1) arranges industrial computer (9), on the every outer branch wind pipe (3) of kiln, blower fan (4) is set, between industrial computer (9) and each blower fan (4), frequency transformer (8) is respectively set, frequency transformer (8) and industrial computer (9), blower fan (4) connection setting, the outer branch wind pipe (3) of kiln and the corresponding setting of branch wind pipe (6) at least one group of kiln.
2. the lear cooling duct energy conserving system method of cooling to glass ribbon, it is characterized in that: the thermopair (11) of the interior above and below of annealing furnace (1) is measured the temperature of operating glass ribbon (5) above and below, and temperature data is transferred to industrial computer (9), industrial computer (9) is controlled the rotating speed of outer branch wind pipe (3) fan (4) of kiln by frequency transformer (8), cold air is sucked to branch wind pipe (6) in kiln from the blast inlet (7) of annealing furnace (1), cold air in kiln in branch wind pipe (6) and the hot gas indirect heat exchange in annealing furnace (1), cold air in heat exchange after annealing kiln (1) makes glass ribbon (5) evenly cooling, cold air in kiln in branch wind pipe (6) enters the outer branch wind pipe (3) of kiln and blast main (2) successively after being heated, from exhaust outlet (10) discharge chamber of blast main (2).
3. the method for cooling of a kind of lear cooling duct energy conserving system according to claim 2 to glass ribbon, it is characterized in that: industrial computer (9) receives after the temperature data of thermopair (11) transmission, industrial computer (9) controls according to the temperature parameter of setting the rotating speed that frequency transformer (8) regulates outer branch wind pipe (3) fan (4) of kiln, increase or reduce the air output of the interior branch wind pipe (6) of kiln of different zones, make the temperature in space above or below glass ribbon (5) remain on 610 ℃-380 ℃, make glass ribbon (5) evenly cooling.
4. the method for cooling of a kind of lear cooling duct energy conserving system according to claim 2 to glass ribbon, is characterized in that: in annealing furnace (1), the thickness of applicable glass ribbon (5) is 1.5mm-19mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142622.8A CN103922575B (en) | 2014-04-02 | 2014-04-02 | Energy-saving system of cooling air hose of glass annealing kiln and cooling method of glass tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142622.8A CN103922575B (en) | 2014-04-02 | 2014-04-02 | Energy-saving system of cooling air hose of glass annealing kiln and cooling method of glass tape |
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| Publication Number | Publication Date |
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| CN103922575A true CN103922575A (en) | 2014-07-16 |
| CN103922575B CN103922575B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410142622.8A Expired - Fee Related CN103922575B (en) | 2014-04-02 | 2014-04-02 | Energy-saving system of cooling air hose of glass annealing kiln and cooling method of glass tape |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015196862A1 (en) * | 2014-06-24 | 2015-12-30 | 中国建材国际工程集团有限公司 | Isothermal drop speed cooling method of forced convection area of lier and apparatus for same |
| CN105461200A (en) * | 2016-01-28 | 2016-04-06 | 中国建材国际工程集团有限公司 | Cooling method and device for high-temperature area of U-shaped glass annealing kiln |
| CN105461199A (en) * | 2016-01-28 | 2016-04-06 | 中国建材国际工程集团有限公司 | Cooling method and device for low-temperature area of U-shaped glass annealing kiln |
| CN107059254A (en) * | 2017-06-22 | 2017-08-18 | 江苏瀚霆环保滤材有限公司 | A kind of eedle-punched non-wovens needing machine air cooling equipment |
| CN110451788A (en) * | 2019-09-12 | 2019-11-15 | 中国建材国际工程集团有限公司 | A kind of air hose cooling system in the area rolled glass annealing kiln A |
| CN114477741A (en) * | 2022-02-25 | 2022-05-13 | 咸宁南玻玻璃有限公司 | Production method of super-thick float glass with length of more than 10 meters |
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| CN2615128Y (en) * | 2002-12-10 | 2004-05-12 | 洛阳玻璃股份有限公司 | Cooling temperature lowering mechanism for hot-blast-air convective region of float glass annealing kiln |
| CN101077820A (en) * | 2006-08-25 | 2007-11-28 | 中国建材国际工程有限公司 | Float glass lehr air-cooled device |
| CN201753311U (en) * | 2010-07-13 | 2011-03-02 | 斯坦因（上海）工业炉有限公司 | Float glass annealing kiln and cooling device thereof |
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- 2014-04-02 CN CN201410142622.8A patent/CN103922575B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2615128Y (en) * | 2002-12-10 | 2004-05-12 | 洛阳玻璃股份有限公司 | Cooling temperature lowering mechanism for hot-blast-air convective region of float glass annealing kiln |
| CN101077820A (en) * | 2006-08-25 | 2007-11-28 | 中国建材国际工程有限公司 | Float glass lehr air-cooled device |
| CN201753311U (en) * | 2010-07-13 | 2011-03-02 | 斯坦因（上海）工业炉有限公司 | Float glass annealing kiln and cooling device thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015196862A1 (en) * | 2014-06-24 | 2015-12-30 | 中国建材国际工程集团有限公司 | Isothermal drop speed cooling method of forced convection area of lier and apparatus for same |
| US11505489B2 (en) | 2014-06-24 | 2022-11-22 | China Triumph International Engineering Co., Ltd. | Isothermal drop speed cooling method of forced convection area for lehr and the apparatus thereof |
| CN105461200A (en) * | 2016-01-28 | 2016-04-06 | 中国建材国际工程集团有限公司 | Cooling method and device for high-temperature area of U-shaped glass annealing kiln |
| CN105461199A (en) * | 2016-01-28 | 2016-04-06 | 中国建材国际工程集团有限公司 | Cooling method and device for low-temperature area of U-shaped glass annealing kiln |
| CN107059254A (en) * | 2017-06-22 | 2017-08-18 | 江苏瀚霆环保滤材有限公司 | A kind of eedle-punched non-wovens needing machine air cooling equipment |
| CN110451788A (en) * | 2019-09-12 | 2019-11-15 | 中国建材国际工程集团有限公司 | A kind of air hose cooling system in the area rolled glass annealing kiln A |
| CN110451788B (en) * | 2019-09-12 | 2024-04-23 | 中国建材国际工程集团有限公司 | Air pipe cooling system for A region of calendaring glass annealing kiln |
| CN114477741A (en) * | 2022-02-25 | 2022-05-13 | 咸宁南玻玻璃有限公司 | Production method of super-thick float glass with length of more than 10 meters |
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