CN101603681A - Fume control system of float glass melting tank afterheat boiler - Google Patents
Fume control system of float glass melting tank afterheat boiler Download PDFInfo
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- CN101603681A CN101603681A CNA2009100600508A CN200910060050A CN101603681A CN 101603681 A CN101603681 A CN 101603681A CN A2009100600508 A CNA2009100600508 A CN A2009100600508A CN 200910060050 A CN200910060050 A CN 200910060050A CN 101603681 A CN101603681 A CN 101603681A
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Abstract
The present invention relates to the glass melter technical field, be intended to solve that the melting furnaces Gas Parameters fluctuation that exists in traditional fume control system of float glass melting tank afterheat boiler is big to the boiler operatiopn influence, technical problems such as Boiler Steam parameter instability, heat recovery rate are low, system's fluctuation of service.The flue gas discharge opening of glass melter 16 of the present invention interlinks by the gas approach of exhaust pass 25 with waste heat boiler, and the exhanst gas outlet of waste heat boiler and chimney 17 interlink; The exhanst gas outlet of waste heat boiler is connected with frequency conversion air-introduced machine 15, and the outlet of frequency conversion air-introduced machine 15 and chimney 17 interlink; Exhaust pass 25 is a three-way pipe, its one section middle part that connects the flue gas discharge opening of glass melter 16 is provided with control valve 18, its one section middle part that connects chimney 17 is provided with flue collector slide valve 19, and its one section middle part that connects the exhaust-heat boiler flue gas import is provided with the electronic dish valve 20 of boiler inlet.The present invention is applicable to the flue gas control of float glass melting tank afterheat boiler.
Description
Technical field
The present invention relates to the glass melter technical field, particularly a kind of fume control system of glass melter waste heat boiler.
Background technology
In the modern industry that is becoming tight energy day and is the theme with energy-saving and emission-reduction was produced, waste gas heat utilization had been subjected to showing great attention to of every profession and trade.Warm waste gas residual heat during float glass smelting kiln waste gas belongs to, temperature are 450～550 ℃, and both at home and abroad glass industry mainly adopts and heat pipe waste heat boiler is set carries out heat utilization, the recovery section heat energy from waste gas, and the flue gas major part is partly passed through.Waste heat boiler is used to produce saturated vapor, offer the heavy oil heating or bear the heating thermic load, or the low-temp low-pressure device for generating power by waste heat of supporting small-scale is supplied with the glass production systematic electricity.
Because the main feature of float glass smelting kiln production is not stop kiln in kiln age (6～10 years), guarantee that under any circumstance smoke evacuation is unobstructed, to guarantee the safe operation of float glass smelting kiln; Will guarantee the steady of kiln inner pressure in any situation, any operation will remain on ± the interior fluctuation of 0.5Pa scope the influence of furnace pressure, to guarantee the quality of glass; So the adaptability to residual heat using device requires very high.
Tradition float glass melting tank afterheat boiler furnace pressure, exhaust gas volumn, flue-gas temperature change along with the fluctuation of melting furnaces Gas Parameters, to cause a series of agricultural technology problem, the poor stability of appearance such as boiler operatiopn, the steam quality that boiler produces is low, perhaps when the melting furnaces Gas Parameters fluctuates, adjusting enters the exhaust gas volumn (being that flue gas passes through) of boiler, and then the fume afterheat utilization rate is low.The instability of aforementioned parameters can directly have influence on operate as normal parameter when boiler failure (or take place) of boiler, the pressure of boiler smoke passage is sharply changed, cause the float glass smelting kiln klin pressure fluctuation simultaneously, cause glass quality to be affected or damage float glass smelting kiln, tradition causes very serious consequence.
Summary of the invention
Technical problems such as the present invention is intended to solve that the melting furnaces Gas Parameters fluctuation that exists in traditional fume control system of float glass melting tank afterheat boiler is big to the boiler operatiopn influence, Boiler Steam parameter instability, heat recovery rate are low, system's fluctuation of service, with provide a kind of energy flexibly, stable, reliably adjust boiler operatiopn parameter, reduce the fluctuation of melting furnaces Gas Parameters to boiler operatiopn influence, Boiler Steam parameter stability, heat recovery rate height, the stable fume control system of float glass melting tank afterheat boiler of system.
The objective of the invention is to be achieved through the following technical solutions:
Fume control system of float glass melting tank afterheat boiler of the present invention, wherein the flue gas discharge opening of glass melter 16 interlinks by the gas approach of exhaust pass 25 with waste heat boiler, and the exhanst gas outlet of waste heat boiler and chimney 17 interlink; The exhanst gas outlet of waste heat boiler is connected with frequency conversion air-introduced machine 15, and the outlet of frequency conversion air-introduced machine 15 and chimney 17 interlink; Exhaust pass 25 is a three-way pipe, its one section middle part that connects the flue gas discharge opening of glass melter 16 is provided with control valve 18, its one section middle part that connects chimney 17 is provided with flue collector slide valve 19, and its one section middle part that connects the exhaust-heat boiler flue gas import is provided with the electronic dish valve 20 of boiler inlet.
Fume control system of float glass melting tank afterheat boiler of the present invention, be provided with flue gas pressures behind wherein said control valve 18 valves, temperature detection becomes send device, described flue collector slide valve 19 is the slide valve with electronic executing agency, be provided with flue gas pressures detection change behind its valve and send device, described frequency conversion air-introduced machine 15 is the frequency conversion air-introduced machine with electronic executing agency, the detection of control valve 18 and flue collector slide valve 19 becomes send the device output to be connected with the respective input of DCS control module respectively, and the output of DCS control module connects the electric operator of flue collector slide valve 19 and the electric operator of frequency conversion air-introduced machine 15 respectively.
Fume control system of float glass melting tank afterheat boiler of the present invention, lead on the pipeline between the outlet of wherein said frequency conversion air-introduced machine 15 and the chimney 17 by-pass flue 27 is arranged, be provided with the electronic dish valve 21 of flue outlet between by-pass flue 27 and the chimney 17, by-pass flue 27 is provided with bypass electric butterfly valve 24, and atmosphere is directly led in 24 outlets of bypass electric butterfly valve.
Fume control system of float glass melting tank afterheat boiler of the present invention, wherein said frequency conversion air-introduced machine 15 are two frequency conversion air-introduced machines in parallel, and its air inlet is equipped with the electronic dish valve 22 of air-introduced machine import, and air outlet is equipped with air-introduced machine and exports electronic dish valve 23.
Fume control system of float glass melting tank afterheat boiler of the present invention, wherein said waste heat boiler are that single drum ∏ type is arranged waste heat boiler.
The beneficial effect of fume control system of float glass melting tank afterheat boiler of the present invention:
1. this system has flexibly, stablizes, regulates the control function reliably, can adjust the parameter of boiler operatiopn in good time, adapts to the variation of float glass smelting kiln furnace pressure, guarantees that waste heat boiler does not under any circumstance influence the normal operation of float glass smelting kiln;
2. this system is satisfying the normal while of float glass smelting kiln furnace pressure and glass production, reduce the influence of the fluctuation of melting furnaces Gas Parameters to boiler operatiopn, guarantee the relatively stable of Boiler Steam parameter, recycle the waste heat in the waste gas that float glass smelting kiln produces to greatest extent;
3. exhaust-heat boiler flue gas control system and device provide reliable assurance for the stable operation of waste heat boiler heat supply and afterheat generating system;
4. applicable to all float glass melting tank afterheat boiler systems.
Description of drawings
Fig. 1 is a system architecture schematic diagram of the present invention
Fig. 2 is a flue regulation and control system schematic diagram of the present invention
The number in the figure explanation:
9 waste heat boilers, 15 frequency conversion air-introduced machines, 16 glass melters, 17 chimneys, 18 intermediate regulations valves, 19 flue collector slide valves, the electronic dish valve of 20 boiler inlets, the electronic dish valve of 21 flue outlets, the electronic dish valve of 22 air-introduced machine imports, 23 air-introduced machines export electronic dish valve, 24 bypass electric butterfly valves, 25 exhaust pass, 27 by-pass flues, 28 recirculated waters inlet, 29 steam (vapor) outlets
The specific embodiment
Detailed structure of the present invention, application principle, effect and effect are illustrated by following embodiment with reference to accompanying drawing 1-2.
Fume control system of float glass melting tank afterheat boiler of the present invention, wherein the flue gas discharge opening of glass melter 16 arranges that by exhaust pass 25 and single drum ∏ type the gas approach of waste heat boiler interlinks, the exhanst gas outlet of waste heat boiler and chimney 17 interlink; The exhanst gas outlet of waste heat boiler is connected with frequency conversion air-introduced machine 15, and the outlet of frequency conversion air-introduced machine 15 and chimney 17 interlink; Exhaust pass 25 is a three-way pipe, its one section middle part that connects the flue gas discharge opening of glass melter 16 is provided with control valve 18, its one section middle part that connects chimney 17 is provided with flue collector slide valve 19, and its one section middle part that connects the exhaust-heat boiler flue gas import is provided with the electronic dish valve 20 of boiler inlet.
Being provided with flue gas pressures, temperature detection behind control valve 18 valves becomes and send device, flue collector slide valve 19 is the slide valve with electronic executing agency, be provided with flue gas pressures detection change behind its valve and send device, frequency conversion air-introduced machine 15 is the frequency conversion air-introduced machine with electronic executing agency, the detection of control valve 18 and flue collector slide valve 19 becomes send the device output to be connected with the respective input of DCS control module respectively, and the output of DCS control module connects the electric operator of flue collector slide valve 19 and the electric operator of frequency conversion air-introduced machine 15 respectively.
Lead on the pipeline between the outlet of frequency conversion air-introduced machine 15 and the chimney 17 by-pass flue 27 is arranged, be provided with the electronic dish valve 21 of flue outlet between by-pass flue 27 and the chimney 17, by-pass flue 27 is provided with bypass electric butterfly valve 24, and atmosphere is directly led in 24 outlets of bypass electric butterfly valve.Frequency conversion air-introduced machine 15 is two frequency conversion air-introduced machines in parallel, and its air inlet is equipped with the electronic dish valve 22 of air-introduced machine import, and air outlet is equipped with air-introduced machine and exports electronic dish valve 23.
Native system is a main signal with melting furnaces flue intermediate regulations valve 18 back pressure, the aperture of melting furnaces flue main gate-board door 19 and the rotating speed (blast) of frequency conversion fan 15 are feed-forward signal, pressure behind the melting furnaces flue main gate-board door 19 is feedback signal, main signal and feedback signal enter DCS (dcs) control module, the DCS control module is by calculating two signal conversions and difference, and send instruction by the DCS control module, regulate the aperture of melting furnaces flue main gate-board door 19 and the rotating speed (being blast) of air-introduced machine 15 by electric operator (being executing agency and frequency converter).When for example boiler startup or load progressively increase, melting furnaces flue main gate-board door 19 progressively reduces aperture, frequency conversion fan 15 progressively improves rotating speed, exhaust gas volumn by boiler is progressively increased, the exhaust gas volumn of directly arranging to chimney 17 by melting furnaces flue main gate-board door 19 gradually reduces, simultaneously before melting furnaces flue main gate-board door 19 is closed fully, be equipped with behind the boiler frequency conversion fan 15 by-pass flue 27 with flue gas directly row to atmosphere, guarantee that the flue gas that boiler is discharged is not back to the boiler inlet flue by melting furnaces flue main gate-board door 19, pressure differential after making melting furnaces flue main gate-board in front of the door and no waste heat boiler and flue leads directly to the state consistency of chimney be not so can have any impact to the glass melter furnace pressure.Boiler stops or loading and pursue when falling, and its control and regulation process is opposite.
In waste heat boiler startup and the stopped process, native system is to regulate each valve opening of control, and boiler induced-draft fan 15 rotating speeds are controlled to be auxilliary, are controlled to be the master by boiler induced-draft fan 15 rotating speeds after the normal operation, and each valve opening is controlled to be auxilliary.
Waste heat boiler when flue gas pressures exerts an influence to furnace pressure, is then opened bypass electric butterfly valve 24 when startup and emergency, flue gas is directly to airborne release.
When a boiler induced-draft fan 15 breaks down can not move the time,, guarantee the normal operation of waste heat boiler and the ordinary production of float glass smelting kiln with opening another standby air-introduced machine.
From the above, fume control system of float glass melting tank afterheat boiler of the present invention, has flexible, stable, the function of adjusting control reliably, can adjust the parameter of boiler operatiopn in good time, adapt to the variation of float glass smelting kiln furnace pressure, guarantee that waste heat boiler does not under any circumstance influence the normal operation of float glass smelting kiln; This system is satisfying the normal while of float glass smelting kiln furnace pressure and glass production, reduce the influence of the fluctuation of melting furnaces Gas Parameters to boiler operatiopn, guarantee the relatively stable of Boiler Steam parameter, recycle the waste heat in the waste gas that float glass smelting kiln produces to greatest extent.Native system is applicable to all float glass melting tank afterheat boiler systems.
Claims (5)
1. fume control system of float glass melting tank afterheat boiler is characterized in that: the flue gas discharge opening of glass melter (16) interlinks by the gas approach of exhaust pass (25) with waste heat boiler, and the exhanst gas outlet of waste heat boiler and chimney (17) interlink; The exhanst gas outlet of waste heat boiler is connected with frequency conversion air-introduced machine (15), and the outlet of frequency conversion air-introduced machine (15) and chimney (17) interlink; Exhaust pass (25) is a three-way pipe, its one section middle part that connects the flue gas discharge opening of glass melter (16) is provided with control valve (18), its one section middle part that connects chimney (17) is provided with flue collector slide valve (19), and its one section middle part that connects the exhaust-heat boiler flue gas import is provided with the electronic dish valve of boiler inlet (20).
2. fume control system of float glass melting tank afterheat boiler as claimed in claim 1, it is characterized in that: be provided with flue gas pressures behind described control valve (18) valve, temperature detection becomes send device, described flue collector slide valve (19) is the slide valve with electronic executing agency, be provided with flue gas pressures detection change behind its valve and send device, described frequency conversion air-introduced machine (15) is the frequency conversion air-introduced machine with electronic executing agency, the detection of control valve (18) and flue collector slide valve (19) becomes send the device output to be connected with the respective input of DCS control module respectively, and the output of DCS control module connects the electric operator of flue collector slide valve (19) and the electric operator of frequency conversion air-introduced machine (15) respectively.
3. fume control system of float glass melting tank afterheat boiler as claimed in claim 1, it is characterized in that: leading on the pipeline between the outlet of described frequency conversion air-introduced machine (15) and the chimney (17) has by-pass flue (27), be provided with the electronic dish valve of flue outlet (21) between by-pass flue (27) and the chimney (17), by-pass flue (27) is provided with bypass electric butterfly valve (24), and atmosphere is directly led in bypass electric butterfly valve (24) outlet.
4. fume control system of float glass melting tank afterheat boiler as claimed in claim 1, it is characterized in that: described frequency conversion air-introduced machine (15) is two frequency conversion air-introduced machines in parallel, its air inlet is equipped with the electronic dish valve of air-introduced machine import (22), and air outlet is equipped with air-introduced machine and exports electronic dish valve (23).
5. fume control system of float glass melting tank afterheat boiler as claimed in claim 1 is characterized in that: described waste heat boiler is that single drum П type is arranged waste heat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100600508A CN101603681A (en) | 2009-07-20 | 2009-07-20 | Fume control system of float glass melting tank afterheat boiler |
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| CNA2009100600508A CN101603681A (en) | 2009-07-20 | 2009-07-20 | Fume control system of float glass melting tank afterheat boiler |
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| CN101603681A true CN101603681A (en) | 2009-12-16 |
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| CNA2009100600508A Pending CN101603681A (en) | 2009-07-20 | 2009-07-20 | Fume control system of float glass melting tank afterheat boiler |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799240A (en) * | 2010-04-20 | 2010-08-11 | 攀钢集团钢铁钒钛股份有限公司 | Method for using waste heat flue gas from rotary hearth furnace |
| CN101973689A (en) * | 2010-09-30 | 2011-02-16 | 天壕节能科技股份有限公司 | Smoke system for adjusting kiln pressure of glass kiln |
| CN102010116A (en) * | 2010-10-28 | 2011-04-13 | 成都四通新能源技术有限公司 | Kiln pressure control method for residual heat generation glass kiln |
| CN102345849A (en) * | 2011-07-14 | 2012-02-08 | 福建大源节能环保科技有限公司 | Waste heat boiler of lier |
| CN102721221A (en) * | 2012-06-07 | 2012-10-10 | 何秀锦 | Production process cooling water waste heat recovery system |
| CN104142071A (en) * | 2013-05-06 | 2014-11-12 | 宁夏嘉翔自控技术有限公司 | Intelligent smoke treatment system of electric calcining furnace |
| CN108710728A (en) * | 2018-04-23 | 2018-10-26 | 华北电力科学研究院有限责任公司 | Air-introduced machine flue resistance determines method and device |
| CN108827012A (en) * | 2018-08-14 | 2018-11-16 | 沈阳创联工业技术有限公司 | Oil plant flue gas of heating furnace desulfurization air-introduced machine PLC frequency-converting speed-governing control system |
| CN110028224A (en) * | 2019-03-19 | 2019-07-19 | 东旭科技集团有限公司 | For producing the kiln system of support plate glass |
| CN113217444A (en) * | 2021-04-27 | 2021-08-06 | 中国二十冶集团有限公司 | Method and system suitable for controlling action of variable frequency fan of waste heat recovery system |
-
2009
- 2009-07-20 CN CNA2009100600508A patent/CN101603681A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799240A (en) * | 2010-04-20 | 2010-08-11 | 攀钢集团钢铁钒钛股份有限公司 | Method for using waste heat flue gas from rotary hearth furnace |
| CN101973689B (en) * | 2010-09-30 | 2012-10-03 | 天壕节能科技股份有限公司 | Smoke system for adjusting kiln pressure of glass kiln |
| CN101973689A (en) * | 2010-09-30 | 2011-02-16 | 天壕节能科技股份有限公司 | Smoke system for adjusting kiln pressure of glass kiln |
| CN102010116A (en) * | 2010-10-28 | 2011-04-13 | 成都四通新能源技术有限公司 | Kiln pressure control method for residual heat generation glass kiln |
| CN102345849B (en) * | 2011-07-14 | 2013-08-28 | 福建大源节能环保科技有限公司 | Waste heat boiler of lier |
| CN102345849A (en) * | 2011-07-14 | 2012-02-08 | 福建大源节能环保科技有限公司 | Waste heat boiler of lier |
| CN102721221A (en) * | 2012-06-07 | 2012-10-10 | 何秀锦 | Production process cooling water waste heat recovery system |
| CN104142071A (en) * | 2013-05-06 | 2014-11-12 | 宁夏嘉翔自控技术有限公司 | Intelligent smoke treatment system of electric calcining furnace |
| CN108710728A (en) * | 2018-04-23 | 2018-10-26 | 华北电力科学研究院有限责任公司 | Air-introduced machine flue resistance determines method and device |
| CN108710728B (en) * | 2018-04-23 | 2022-04-15 | 华北电力科学研究院有限责任公司 | Method and device for determining flue resistance of induced draft fan |
| CN108827012A (en) * | 2018-08-14 | 2018-11-16 | 沈阳创联工业技术有限公司 | Oil plant flue gas of heating furnace desulfurization air-introduced machine PLC frequency-converting speed-governing control system |
| CN110028224A (en) * | 2019-03-19 | 2019-07-19 | 东旭科技集团有限公司 | For producing the kiln system of support plate glass |
| WO2020186617A1 (en) * | 2019-03-19 | 2020-09-24 | 东旭科技集团有限公司 | Furnace system for producing carrier glass |
| CN113217444A (en) * | 2021-04-27 | 2021-08-06 | 中国二十冶集团有限公司 | Method and system suitable for controlling action of variable frequency fan of waste heat recovery system |
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Open date: 20091216 |