EP2758712A1 - Thermische nachverbrennungsanlage sowie verfahren zum betreiben eine solchen - Google Patents
Thermische nachverbrennungsanlage sowie verfahren zum betreiben eine solchenInfo
- Publication number
- EP2758712A1 EP2758712A1 EP12761544.1A EP12761544A EP2758712A1 EP 2758712 A1 EP2758712 A1 EP 2758712A1 EP 12761544 A EP12761544 A EP 12761544A EP 2758712 A1 EP2758712 A1 EP 2758712A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion chamber
- carbon monoxide
- gas
- burner
- temperature
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/002—Regulating fuel supply using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/21—Measuring temperature outlet temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2241/00—Applications
- F23N2241/18—Incinerating apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2900/00—Special features of, or arrangements for controlling combustion
- F23N2900/05001—Measuring CO content in flue gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
Definitions
- the invention relates to a thermal postcombustion ⁇ anläge with a) a combustion chamber, which in turn comprises: aa) a combustion chamber; ab) a burner capable of heating the combustion chamber of the combustion chamber; ac) an inlet for contaminated exhaust air; ad) an outlet for clean air; b) a supply line, via which burner burnt gas can be supplied; c) a gas control valve in the supply line; d) an outlet conduit through which the clean gas
- a control device which controls the gas control valve to set a desired temperature in the combustion chamber; and a method for operating a thermal secondary combustion system, in which a combustion chamber of a combustion chamber heating burner burner gas is supplied; the combustion chamber of the combustion chamber with pollutant loaded exhaust air is supplied;
- Clean gas is discharged from the combustion chamber of the combustion chamber.
- thermal afterburner systems and methods of the type mentioned as they are currently on the market, proceeding as follows: In the maximum expected and permitted loading of the exhaust air, the temperature is determined at which the clean air, the desired purity, in particular a certain maximum value of the carbon monoxide content. This temperature is then constantly adjusted during operation of the thermal afterburner, regardless of which pollutant load actually has the supplied exhaust air. This generally has the consequence that a higher temperature in the combustion chamber of the combustion chamber is brought about over longer operating periods, as would actually be required in view of the currently present pollutant loading of the exhaust air to achieve the desired purity.
- Object of the present invention is to provide a thermal afterburner or a method for their operation of the type mentioned, in which or which a cheaper and scho nenderer operation of the combustion chamber is possible.
- this object is achieved in that f) a carbon monoxide sensor is provided in the outlet line, which sensor generates an output signal representative of the carbon monoxide content of the clean gas, which can be supplied to the control device is; g) a nominal value for the carbon monoxide content of the clean air can be stored in the control device; where h) the control unit is programmed to
- the combustion chamber sets a temperature at which the actual value coincides with the setpoint value.
- the combustion chamber temperature is not adjusted to a fixed, maximum value; Rather, the regulation of the combustion chamber temperature is subordinated to the emission values required for the clean gas. In this way, under all operating conditions, in particular so different loadings of the processed exhaust air, the optimum combustion chamber temperature
- the combustion chamber temperature is raised in order to prevent an increase in the emission levels in the clean gas. If, conversely, in the previous ones
- the combustion chamber temperature is lowered and adjusted so far the pollutant content in the exhaust air. Due to the lower average temperatures that are set in the combustion chamber of the thermal afterburner system according to the invention, not only energy is saved; It also protects the materials used there, which extends the life of the system.
- a pollutant sensor which measures the loading of the supplied exhaust air with pollutants and modified in a change in the load stored in the control unit setpoint value and / or output from the carbon monoxide sensor output signal so that the temperature in the combustion chamber the combustor is advanced in the direction required to maintain the set point of carbon monoxide in the clean gas.
- the combustion chamber If the temperature of the carbon monoxide in the discharged clean gas is controlled primarily in the first place, it may, in the case of very large changes in the loading of the processed exhaust air, result in the pollutant content in the clean air being exceeded or undershot for technical reasons.
- the pollutant loading of the exhaust air is measured as soon as it enters the combustion chamber and the combustion chamber temperature is already changed in one direction at this point in time, as is necessary to maintain the desired emission values in the clean air.
- a particular change in the loading of the exhaust air makes this anticipatory change in the combustion chamber temperature required can be determined by simple tests and, for example, by a corresponding characteristic, deposited in the control device.
- this is achieved by d) measuring the carbon monoxide content in the clean gas
- the main component of the thermal post-combustion system is a combustion chamber 1, in the interior of which a combustion chamber 13 is located. This or the atmosphere in it can with the help of a burner 2 to a desired
- the burner 2 is supplied via a line 3 burner gas.
- a gas control valve 4 which is controlled in a manner to be described later.
- the combustion chamber 1 is also fed via a line 5 by means of a blower 6 to be cleaned, loaded with pollutants exhaust air.
- the exhaust air is introduced into the combustion chamber 13 and there into the flame generated by the burner 2 via an inner conduit system 7 within the combustion chamber 1, the design of which does not depend in detail here.
- the pollutants are burned in the exhaust air.
- the clean gases thus produced are supplied via a line 8 to a heat consumer. Ultimately, they can then be released into the outside atmosphere.
- the structure of the thermal post-combustion plant corresponds to that of the prior art.
- a temperature sensor 9 measures the prevailing in the combustion chamber 13 operating temperature.
- a pollutant sensor 10 detects the loading of the through the line 5 the
- Combustion chamber 1 supplied exhaust air with pollutants, in particular with hydrocarbons. Finally, a carbon monoxide sensor 11 measures the carbon monoxide content of the clean gas flowing via the line 8. The output signals of the temperature sensor 9, the damaged Fabric sensor 10 and the carbon monoxide sensor 11 are supplied to a control device 12.
- the control device 12 The control device
- control device 12 is a desired value for the
- Carbon monoxide content stored in the line 8. Exceeds the measured by the carbon monoxide sensor 11 actual value of the carbon monoxide content in the line
- the control device 12 reduces the supply of burner gas to the burner 2 by closing the gas control valve 4 a little more. The result is that the operating temperature in the combustion chamber 13 of the combustion chamber 1 decreases and the content of carbon monoxide in the clean gas increases, until the desired carbon monoxide content in the line 8 is again detected by the carbon monoxide sensor 11.
- Line 5 incoming exhaust air with impurities does not fluctuate very much. In case of sudden changes in the
- the pollutant sensor 10 now intervenes. This can already be done before the
- control device 11 a signal which influences its output signal so that it simulates a higher than the actually measured carbon monoxide content.
- the control device 12 now interprets the output of the carbon monoxide sensor 11 as if in fact the carbon monoxide content in the line 8 would be too high and the supply of burner gas to the burner 2 by means of the gas control tiles 4 and, as a result, the operating temperature in the combustion chamber 13 correspondingly high. If the exhaust air laden with more pollutants now arrives in the combustion chamber 13, it already encounters a higher or at least already rising temperature, so that the increased combustion of pollutants in the combustion chamber 13 is already paving the way. The shift of the output signal of the carbon monoxide sensor 11 can be withdrawn after a certain transitional period, so that the control device 12 again compares the true actual value of the carbon monoxide content in the line 8 with the stored nominal value and thereafter the operating temperature in the combustion chamber 13 controls.
- Carbon monoxide sensor 11 can be moved by the output signal of the pollutant sensor 10 and the stored in the control device 12 target value.
- this can also be temperature-controlled. Signals the temperature sensor 9 in the combustion chamber 13 that there is a sufficiently high temperature
- the anticipatory control by the pollutant sensor 10 can be omitted or canceled.
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011114292A DE102011114292A1 (de) | 2011-09-23 | 2011-09-23 | Thermische Nachverbrennungsanlage sowie Verfahren zum Betreiben einer solchen |
PCT/EP2012/003737 WO2013041185A1 (de) | 2011-09-23 | 2012-09-06 | Thermische nachverbrennungsanlage sowie verfahren zum betreiben eine solchen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2758712A1 true EP2758712A1 (de) | 2014-07-30 |
EP2758712B1 EP2758712B1 (de) | 2017-11-08 |
Family
ID=46880662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12761544.1A Active EP2758712B1 (de) | 2011-09-23 | 2012-09-06 | Thermische nachverbrennungsanlage sowie verfahren zum betreiben einer solchen |
Country Status (5)
Country | Link |
---|---|
US (1) | US9523500B2 (de) |
EP (1) | EP2758712B1 (de) |
CN (1) | CN103814253B (de) |
DE (1) | DE102011114292A1 (de) |
WO (1) | WO2013041185A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015219898A1 (de) | 2015-10-14 | 2017-04-20 | Dürr Systems GmbH | Werkstückbearbeitungsanlage und Verfahren zum Betreiben einer Werkstückbearbeitungsanlage |
DE102017212322A1 (de) * | 2017-07-19 | 2019-01-24 | Thyssenkrupp Ag | Verfahren und System zum Reinigen eines Gasstroms |
DE102017222517A1 (de) * | 2017-12-12 | 2019-06-13 | Dürr Systems Ag | Verfahren zur Reinigung von Abgas und Abgasreinigungsvorrichtung |
GB2588775A (en) * | 2019-11-05 | 2021-05-12 | Edwards Ltd | Optimising operating conditions in an abatement apparatus |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4101632A (en) * | 1976-10-28 | 1978-07-18 | Aluminum Company Of America | Waste gas incineration control |
DE3527835A1 (de) * | 1985-08-02 | 1987-02-05 | Ibk Ingenieurbuero Dipl Ing Fr | Verfahren und einrichtung zur selektiven abscheidung von kohlenwasserstoffdaempfen aus diese neben wasserdampf enthaltenden gasstroemen |
US5160259A (en) * | 1991-05-01 | 1992-11-03 | Hauck Manufacturing Company | Draft control method and apparatus for material processing plants |
DE4222469C1 (de) * | 1992-07-08 | 1994-01-27 | Gossler Kg Oscar | Verfahren und Vorrichtung zur thermischen Behandlung von Gas, insbesondere thermischen und/oder katalytischen Nachverbrennung von Abgas |
US5662049A (en) * | 1994-05-30 | 1997-09-02 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Combustion method and apparatus |
JP3051040B2 (ja) * | 1994-11-30 | 2000-06-12 | 日立造船株式会社 | 焼却設備における排ガス処理装置 |
JP3844941B2 (ja) * | 2000-03-30 | 2006-11-15 | 株式会社神戸製鋼所 | 調温装置および高温排ガスの調温方法 |
US6499412B2 (en) | 2000-09-15 | 2002-12-31 | Rohm And Haas Company | Method of firebox temperature control for achieving carbon monoxide emission compliance in industrial furnaces with minimal energy consumption |
JPWO2002055932A1 (ja) * | 2001-01-09 | 2004-05-20 | 阿部 俊廣 | 廃棄物焼却方法及びそのための装置 |
JP2002364821A (ja) * | 2001-06-12 | 2002-12-18 | Sumitomo Seika Chem Co Ltd | 排ガスの処理方法および処理装置 |
DE102004051491B3 (de) * | 2004-07-27 | 2006-03-02 | Eisenmann Maschinenbau Gmbh & Co. Kg | Thermische Nachverbrennungsvorrichtung sowie Verfahren zum Betreiben einer solchen |
US20060204911A1 (en) * | 2005-03-14 | 2006-09-14 | Yu-Shan Teng | High efficiency fuel injection system for gas appliances |
WO2009130180A2 (de) | 2008-04-22 | 2009-10-29 | Basf Se | Verfahren zur regelung der zugabe eines zusatzbrennstoffs |
-
2011
- 2011-09-23 DE DE102011114292A patent/DE102011114292A1/de not_active Withdrawn
-
2012
- 2012-09-06 US US14/346,599 patent/US9523500B2/en active Active
- 2012-09-06 EP EP12761544.1A patent/EP2758712B1/de active Active
- 2012-09-06 WO PCT/EP2012/003737 patent/WO2013041185A1/de active Application Filing
- 2012-09-06 CN CN201280045332.0A patent/CN103814253B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20140322657A1 (en) | 2014-10-30 |
CN103814253B (zh) | 2016-02-17 |
US9523500B2 (en) | 2016-12-20 |
CN103814253A (zh) | 2014-05-21 |
EP2758712B1 (de) | 2017-11-08 |
WO2013041185A1 (de) | 2013-03-28 |
DE102011114292A1 (de) | 2013-03-28 |
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