EP0458822A1 - Verfahren zum erfassen der von mindestens zwei räumlich getrennten stellen eines verbrennungsprozesses ausgehenden strahlung und regeln des verbrennungsvorganges in abhängigkeit von der erfassten strahlung und vorrichtung zur durchführung des verfahrens. - Google Patents
Verfahren zum erfassen der von mindestens zwei räumlich getrennten stellen eines verbrennungsprozesses ausgehenden strahlung und regeln des verbrennungsvorganges in abhängigkeit von der erfassten strahlung und vorrichtung zur durchführung des verfahrens.Info
- Publication number
- EP0458822A1 EP0458822A1 EP90903013A EP90903013A EP0458822A1 EP 0458822 A1 EP0458822 A1 EP 0458822A1 EP 90903013 A EP90903013 A EP 90903013A EP 90903013 A EP90903013 A EP 90903013A EP 0458822 A1 EP0458822 A1 EP 0458822A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zones
- combustion
- grate
- radiation
- individual
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 54
- 230000005855 radiation Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000000446 fuel Substances 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 238000011156 evaluation Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 238000001931 thermography Methods 0.000 claims description 5
- 102100025342 Voltage-dependent N-type calcium channel subunit alpha-1B Human genes 0.000 claims description 3
- 101710088658 Voltage-dependent N-type calcium channel subunit alpha-1B Proteins 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
- F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/10—Arrangement of sensing devices
- F23G2207/101—Arrangement of sensing devices for temperature
- F23G2207/1015—Heat pattern monitoring of flames
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/20—Waste supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/30—Oxidant supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2229/00—Flame sensors
- F23N2229/20—Camera viewing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2233/00—Ventilators
- F23N2233/06—Ventilators at the air intake
Definitions
- the invention relates to a method for detecting the radiation emanating from at least two spatially separated points in a combustion process and regulating the combustion process as a function of the detected radiation.
- the grate furnaces are becoming increasingly important, as they are particularly suitable for combustion 'of Hull.
- the firing power controls are limited when they intervene in the Firing on the allocation of the primary air usually supplied from below to the grate, the secondary air supplied above the grate and the conveying speed of the feeder with which the waste is supplied to the grate, and the conveying speed on individual grate zones if such a different conveying speed is provided is.
- the object of the present invention is to provide a method for monitoring combustion which generates automatically ascertainable evaluation criteria for the progress of combustion and enables automation of the control.
- This object is achieved in that, in order to detect the radiation from a combustion on a grate, the radiation emanating essentially from individual combustion grate zones of the grate is detected and, depending on the radiation detected, the primary air supplied to the individual combustion zones and / or the
- Transport speed of the fuel is regulated in individual zones.
- thermographic process it is possible to record the temperature of the material bed formed on the grate over a large area, that is, to map a two di meni ona Len temperature course in individual grate zones and thus, depending on the recorded temperature image, the primary air supplied to the individual combustion zones and / or the transport speed of the To regulate fuel in individual zones.
- the zoning can be done not only in the funding direction, but also across the funding direction.
- the temperature profile recorded for the individual zones is compared to a predetermined temperature profile and used to form the corresponding control signals.
- the grates considered in the case of the present application include in particular the single-lane or multi-lane feed grates, in which fixed and movable grate bars alternate in each grate path.
- the zone subdivision is achieved here by different primary air supply.
- These also include single or multi-lane-level grates, wherein the grate gradations overturning and breaking up of the fuel ski CHT cause and in which each grate element determines a grate zone in which the primary air 'jewei time Abbrandfort suits can be adapted to.
- Such a zone division without gradation is also realized in the so-called burnout grates.
- the invention can also be used with traveling grates, * roller grates, push-back grids, counter-rotating slide grids and the Scdazzling Lrosten.
- the traveling grates with a rotating conveyor, the feed speed can only be regulated together for all zones, but a zone-by-zone primary air supply is possible.
- the invention is also directed to a device for detecting the radiation emanating from at least two spatially separated locations of a combustion process by means of a detector device, with an evaluation device downstream of the detector device and the control device downstream of the evaluation device for influencing the combustion process.
- the invention has further set itself the task of making this device suitable for use on a combustion grate and to improve the combustion on the grate.
- the detector device detects the radiation of individual grate zones corresponding to the material bed temperature and adjusting devices for the supply of primary air and / or for the individual grate zones which are separately adjustable
- Transport speed of the fuel in the material bed through individual grate zones are assigned.
- the detector device can preferably have at least one thermographic or infrared camera, which detects the radiation of several rust zones at the same time.
- thermography camera With a thermography camera, the material bed can be detected over a large area and with the camera downstream evaluation devices, the material bed can be assigned isotherms that are either restricted to individual zones or over several zones.
- two infrared cameras are provided, each of which is a side wall of the combustion chamber are assigned and capture the same bed surface. This provides redundancy and thus security of the control.
- thermographic e-camera which covers the bed over a large area
- the detector device may comprise a multiplicity of individual detectors, which are assigned in groups to individual rust zones and certain product bed temperature ranges or temperatures.
- the detectors are preferably arranged transversely to the conveying direction of the grate.
- Photodiodes, rod detectors and thermocouples can be used as single oil detectors.
- FIG. 1 shows a schematic section through a
- FIG. 2 a view of the grate zones with two thermographic cameras arranged on the side with an isothermal distribution that is unfavorable for combustion
- FIG. 3 a view comparable to FIG. 2 with an optimal isothermal distribution for combustion
- FIG. 4 a top view comparable to FIG. 2 and 4 3, however, without a thermographic e-camera, but with a group of individual detectors.
- FIG. 1 shows a furnace 1 with a step feed grate 2 as described in the applicant's brochure "Combustion technology - feed grate” (P 8303-05-13 / 1 IDG).
- the feed grate 2 has five combustion zones A, B, C, D and E, the zones B and C or D and E being separated from one another by a stage 3 or 4.
- FIG. 1 is shown schematically that the movable grate bars of the individual zones A - E are each assigned to a Rostsch Li tten 5.
- the grate slides A5 - E5 can be moved back and forth via schematically illustrated hydraulic drives A6 - E6.
- the kiln in particular MÜLL, is fed into the grate 2 via a funnel 7 and a likewise hydraulically actuated distributor 8, specifically to the feed zone 8 ".
- the allocation zone 8 'and the combustion zones A - E with movable grate bars are each associated with underwind zones 9 and A9 - E9, to which primary combustion air can be supplied via control lines 9' and A12 - E12.
- the flue gases rising from the combustion grate 2 can still be supplied via a line 12 and control flaps 12 'and 12 "secondary air via several nozzles 13.
- thermographic cameras 15a and 15b are arranged in such a way that they cover substantially the entire rectangular area of zones B, C and D. This can be achieved with an imaging and focusing opti, not shown, but common in the field.
- thermography cameras 15 are connected to an evaluation circuit 16 which, as schematically represented by the arrow S, specifies the desired temperature profile in the area of the three monitored zones B, C and D. Monitoring can also be extended to the other zones or to two adjacent or separate zones are restricted; this depends on the desired level of monitoring and regulation.
- the evaluation circuit 16 is connected to the drives A6 - E6 for the feed and the flaps A12 - E12 for the primary air supply. It is also possible that the evaluation circuit also controls the flap 9 * for the primary air zone 9, the flap 10 'for the total primary air volume, the drive of the component 8 and the caps 12 * and 12 "for the secondary air.
- FIG. 2 shows a course of combustion along and transversely to the grating direction VS of the grate, which does not lead to optimal combustion.
- the temperature range with assumed here highest combustion temperature is too far forward, ie essentially in the zone B, and is located in the "zone D, an area while a lower temperature than in the hot zone, but a lower temperature should here be achieved already .
- thermography cameras 15 record the two di ensi ona le radiation distribution in the area of zones B - D and the evaluation circuit compares the resulting isotherms according to FIG. 2 with the predetermined target isotherms, as shown in FIG. 3 are shown.
- zones B, C and D are assigned individual detectors arranged in groups, each of which emits an output signal when a predetermined temperature or a predetermined temperature range prevails in its field of vision.
- the grate is designed in three lanes, i. H. In the individual zones, partial zones are formed transversely to the feed direction, e.g. B. BI, BII and BIII. These sub-zones can be assigned separate feed devices and / or separate primary air feeds. Each of the sub-zones is assigned a detector assembly 17 with individual detectors 17a, 17b, 17c and 17d, each of which detects a separate temperature range.
- thermographic camera compared to the use of a thermographic camera, a certain digitization of the signals corresponding to the temperatures has already been achieved, so that the evaluation circuit 16 can be significantly simplified.
- groups of detectors are also cheaper than thermography cameras.
- the evaluation circuit which is connected downstream of a thermographic camera, can be designed such that individual paths are taken into account in the evaluation.
- Appropriately designed focusing optics can be assigned to the entire assembly 17 or the individual elements are so that the individual sub-zones z. B. BI, BII and BIII to the extent necessary, as shown in FIG. 4 is outlined.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Incineration Of Waste (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3904272A DE3904272C3 (de) | 1989-02-14 | 1989-02-14 | Verfahren zum Erfassen der von mindestens zwei räumlich getrennten Stellen mindestens einer Verbrennungszone auf einem Rost ausgehenden Strahlung und Vorrichtung zum Erfassen einer solchen Strahlung |
| DE3904272 | 1989-02-14 | ||
| PCT/EP1990/000225 WO1990009552A1 (de) | 1989-02-14 | 1990-02-12 | Verfahren zum erfassen der von mindestens zwei räumlich getrennten stellen eines verbrennungsprozesses ausgehenden strahlung und regeln des verbrennungsvorganges in abhängigkeit von der erfassten strahlung und vorrichtung zur durchführung des verfahrens |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0458822A1 true EP0458822A1 (de) | 1991-12-04 |
| EP0458822B1 EP0458822B1 (de) | 1995-10-04 |
| EP0458822B2 EP0458822B2 (de) | 1999-03-17 |
Family
ID=6373977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90903013A Expired - Lifetime EP0458822B2 (de) | 1989-02-14 | 1990-02-12 | Verfahren und Vorrichtung zur Regelung der Verbrennung eines Brennstoffes in einer Rostfeuerung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0458822B2 (de) |
| DD (1) | DD292068A5 (de) |
| DE (2) | DE3904272C3 (de) |
| WO (1) | WO1990009552A1 (de) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4220149C2 (de) * | 1992-06-19 | 2002-06-13 | Steinmueller Gmbh L & C | Verfahren zum Regelung der Verbrennung von Müll auf einem Rost einer Feuerungsanlage und Vorrichtung zur Durchführung des Verfahrens |
| DE4344906C2 (de) * | 1993-12-29 | 1997-04-24 | Martin Umwelt & Energietech | Verfahren zum Regeln einzelner oder sämtlicher die Verbrennung auf einem Feuerungsrost beeinflussender Faktoren |
| US5680824A (en) * | 1994-02-07 | 1997-10-28 | Techform Engineering Ag | Process for burning solids with a sliding firebar system |
| DE4428159C2 (de) * | 1994-08-09 | 1998-04-09 | Martin Umwelt & Energietech | Verfahren zur Regelung der Feuerung bei Verbrennungsanlagen, insbesondere Abfallverbrennungsanlagen |
| AT402762B (de) * | 1994-12-05 | 1997-08-25 | Staudinger Gernot | Verfahren und vorrichtung zum regeln einer rostfeuerung mit beweglichem rost |
| DE4445954A1 (de) * | 1994-12-22 | 1996-06-27 | Abb Management Ag | Verfahren zur Verbrennung von Abfällen |
| JP2712017B2 (ja) * | 1995-11-24 | 1998-02-10 | 繁 齋藤 | 燃焼系システム及び燃焼炉 |
| DE19650119C1 (de) * | 1996-12-03 | 1998-02-26 | Martin Umwelt & Energietech | Verfahren und Vorrichtung zur Erzeugung von nutzbarem Gas aus Abfallstoffen |
| DE19735139C1 (de) * | 1997-08-13 | 1999-02-25 | Martin Umwelt & Energietech | Verfahren zum Ermitteln der durchschnittlichen Strahlung eines Brennbettes in Verbrennungsanlagen und Regelung des Verbrennungsvorganges |
| US6389330B1 (en) | 1997-12-18 | 2002-05-14 | Reuter-Stokes, Inc. | Combustion diagnostics method and system |
| RU2147711C1 (ru) * | 1998-09-30 | 2000-04-20 | Акционерное общество "ВНИИЭТО" | Печь для слоевого сжигания твердых отходов |
| DE10050575C5 (de) * | 2000-10-12 | 2009-10-29 | Martin GmbH für Umwelt- und Energietechnik | Verfahren zum Verbrennen von Abfallprodukten |
| DE10327471B3 (de) * | 2003-06-18 | 2005-04-07 | Sar Elektronic Gmbh | Verfahren und Vorrichtung zum Regeln der Feuerleistung von Verbrennungsanlagen |
| DE102005009957B4 (de) * | 2005-03-04 | 2007-02-01 | Martin GmbH für Umwelt- und Energietechnik | Verfahren zum Verbrennen von Brennstoffen, insbesondere Abfall |
| DE102005020328B4 (de) * | 2005-04-30 | 2008-04-30 | Rag Aktiengesellschaft | Temperaturmessung in Verkokungsöfen mittels einer Wärmebildkamera und Steuerungsvorrichtung hierfür |
| DE102007033825B4 (de) * | 2007-07-18 | 2021-05-20 | Nippon Steel & Sumikin Engineering Co., Ltd. | Walzenrost mit Hydraulikantrieb und ein Verfahren zum Betreiben des Walzenrostes |
| KR101531738B1 (ko) * | 2008-06-10 | 2015-06-25 | 밥콕 앤 윌콕스 뵐운트 아/에스 | 저항 계수와 플레임 프론트 추정의 조합을 사용하여 연소 설비를 제어하는 방법 |
| EP2385321A3 (de) * | 2010-04-22 | 2014-12-17 | Artur Cebula | Verfahren zur Regulierung des Verbrennungsprozesses in Festbrennstoffzentralheizkesseln |
| AT512353A1 (de) * | 2012-01-11 | 2013-07-15 | Siemens Ag Oesterreich | Verfahren zur regelung einer verbrennungs- und/oder vergasungseinrichtung |
| ES2604027T3 (es) | 2013-03-25 | 2017-03-02 | Hitachi Zosen Inova Ag | Detector de radiación |
| FR3103027B1 (fr) | 2019-11-08 | 2021-11-26 | Cnim Groupe | Procédé de régulation d’une installation de combustion, ainsi qu’installation de combustion correspondante |
| DE102020000980A1 (de) * | 2020-02-14 | 2021-08-19 | Martin GmbH für Umwelt- und Energietechnik | Verfahren zum Betreiben einer Feuerungsanlage |
| WO2025230782A1 (en) * | 2024-04-22 | 2025-11-06 | Aprovecho Research Center | Air supply systems for combustion of batch-loaded biomass fuels |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD30822A (de) * | ||||
| DE1000129B (de) * | 1953-06-12 | 1957-01-03 | Strebelwerk Ges Mit Beschraenk | Feuerung mit selbsttaetiger Regelung der Brennstoffzufuhr durch einen Temperaturfuehler |
| GB1218733A (en) * | 1966-10-21 | 1971-01-13 | Associated British Comb Ltd | Combustion chambers having remote viewing devices structurally combined therewith |
| US3824391A (en) * | 1973-05-21 | 1974-07-16 | Central Electr Generat Board | Methods of and apparatus for flame monitoring |
| DE3024401A1 (de) * | 1980-06-28 | 1982-01-28 | Steag Ag, 4300 Essen | Verfahren zur gesteuerten verbrennung von festen fossilen brennstoffen, insbesondere kohlestaub |
| FI79622C (fi) * | 1986-01-27 | 1990-01-10 | Nokia Oy Ab | Foerfarande foer generering av i realtidsreglerparametrar med hjaelp av en videokamera foer roekgenererande foerbraenningsprocesser. |
-
1989
- 1989-02-14 DE DE3904272A patent/DE3904272C3/de not_active Expired - Fee Related
-
1990
- 1990-02-12 WO PCT/EP1990/000225 patent/WO1990009552A1/de not_active Ceased
- 1990-02-12 DE DE59009747T patent/DE59009747D1/de not_active Expired - Lifetime
- 1990-02-12 EP EP90903013A patent/EP0458822B2/de not_active Expired - Lifetime
- 1990-02-13 DD DD90337796A patent/DD292068A5/de not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9009552A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3904272A1 (de) | 1990-08-23 |
| DE59009747D1 (de) | 1995-11-09 |
| EP0458822B2 (de) | 1999-03-17 |
| EP0458822B1 (de) | 1995-10-04 |
| DD292068A5 (de) | 1991-07-18 |
| DE3904272C2 (de) | 1992-04-23 |
| WO1990009552A1 (de) | 1990-08-23 |
| DE3904272C3 (de) | 1998-01-08 |
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