CN102057223B - Method of controlling a combustion facility using a combination of coefficient of resistance and flame front estimation - Google Patents

Method of controlling a combustion facility using a combination of coefficient of resistance and flame front estimation Download PDF

Info

Publication number
CN102057223B
CN102057223B CN2008801297643A CN200880129764A CN102057223B CN 102057223 B CN102057223 B CN 102057223B CN 2008801297643 A CN2008801297643 A CN 2008801297643A CN 200880129764 A CN200880129764 A CN 200880129764A CN 102057223 B CN102057223 B CN 102057223B
Authority
CN
China
Prior art keywords
fuel
flame
resistance coefficient
speed
fpv
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.)
Active
Application number
CN2008801297643A
Other languages
Chinese (zh)
Other versions
CN102057223A (en
Inventor
S·N·托姆森
B·E·索伦森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Babcock and Wilcox Volund AS
Original Assignee
Babcock and Wilcox Volund AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Babcock and Wilcox Volund AS filed Critical Babcock and Wilcox Volund AS
Publication of CN102057223A publication Critical patent/CN102057223A/en
Application granted granted Critical
Publication of CN102057223B publication Critical patent/CN102057223B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
    • 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
    • F23N1/002—Regulating fuel supply using electronic means
    • 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
    • F23G2207/102—Arrangement of sensing devices for pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/55—Controlling; Monitoring or measuring
    • F23G2900/55009—Controlling stoker grate speed or vibrations for waste movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/36—PID signal processing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure
    • 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
    • F23N2241/00—Applications
    • F23N2241/18—Incinerating apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Incineration Of Waste (AREA)

Abstract

The present invention relates to a method of controlling at least one parameter (1,2) of a combustion facility, said combustion facility comprising an in-feed system feeding fuel to a number of moving grates on which the fuel is fed forward and subjected to successive drying, ignition, combustion and outbuming, primary air for the combustion being supplied from beneath the grates and through the layer of fuel on the grates, said method comprising - calculating a coefficient of resistance (Zeta pv) for the air flow through the grates and fuel, - controlling the at least one parameter (1,2) of the combustion facility based on the coefficient of resistance (Zeta pv), and - providing an estimation of the position (Fpv) of the flame front by image analysis of a camera image of the combustion zone and - using said estimated position (Fpv) of the flame front to provide a correction of the control of the at least one parameter (1,2) based on the coefficient of resistance (Zeta pv).

Description

A kind of method of utilizing the combination control combustion equipment of resistance coefficient and flamjne front estimation
Technical field
The present invention relates to a kind of control method of using in comprising the combustion apparatus of feed system, wherein feed system is supplied with a plurality of mobile fire grates with fuel, fuel is supplied with forward and experience drying, igniting, burning and after-flame successively on mobile fire grate, and the primary air that is used for burning provides below fire grate and passes fuel bed on fire grate.
Background technology
In this combustion apparatus, the resistance coefficient of the known air-flow that passes through fire grate and fuel based on for example calculating according to bernoulli principle provides feed system and the control of mobile fire grate speed possibly.These class methods can be known from EP955499.
Summary of the invention
The purpose of this invention is to provide a kind of method mentioned above, utilize the method can provide a kind of burning more accurately to control, and this purpose is realized by the method for described type, according to the present invention, the flame front location that the method is estimated by utilization provides to control based on resistance coefficient to be proofreaied and correct, and the flame front location of described estimation is provided by the graphical analysis of the camera image of combustion zone.By this way, when flame front location being detected and depart from its optimum position, can proofread and correct setting value or the control signal of resistance coefficient controller.
Description of drawings
Following detailed description part at this specification with reference to the exemplary embodiment of the method according to this invention shown in accompanying drawing, will be explained in more detail the present invention, wherein
Fig. 1 schematically represents a kind of configuration of supply control system, and wherein the setting value of resistance coefficient controller is additionally proofreaied and correct (feedforward) by the flamjne front control signal.
Fig. 2 schematically represents a kind of configuration of supply control system, and wherein the setting value of resistance coefficient controller is by flamjne front control signal convergent-divergent (scaling), and
Fig. 3 schematically represents a kind of configuration of supply control system, wherein the flamjne front control signal setting value of convergent-divergent (gain scaling) feeding control system directly.
The specific embodiment
Comprise controller for each parameter of two parameters of combustion apparatus in the control system shown in accompanying drawing 1-3, namely two parameters are respectively ignitable fuel is supplied with the speed 1 of combustion chamber and the speed 2 of transmitting of entering on continuous the first incineration grates.Each in two controllers represents by the PID controller, and they are mainly controlled according to the setting value 3 of fire grate speed, steam/energy production that fire grate speed needs based on factory.Resistance coefficient ζ by means of the top, combustion zone carries out for the correction of the fire grate speed setting value 3 of two controllers.Resistance coefficient ζ is calculated in the combustion zone, for example, use the incineration grate of combination and the measurement, the measurement of air-flow, the measurement of pressure of the pressure on the opposite side of combustible material layer on it, and the measurement of the temperature of combustion air etc.The calculating of resistance coefficient ζ can be based on several different equations, for example
Δp = 1 / 2 · ζ · ρ · v x ⇔ ζ = 2 · Δp ρ · v x Wherein
The pressure loss above the upper fuel of Δ p=fire grate and its
ζ=resistance coefficient
ρ=medium (combustion air) density
The v=medium velocity
X=depends on that stream is the index of laminar flow or turbulent flow,
Perhaps
ζ 1 = R · T P · Δp V Wherein
ζ 1=resistance coefficient
The gas constant of R=air (=287.1J/ (kg*K))
T=air themperature (K)
P=air pressure (Pa)
The pressure loss above the upper fuel of Δ p=fire grate and its
V=volume of air flow (m 3/ s)
Perhaps, provide with fire grate on any other dependent equation of resistance coefficient ζ pv of fuel depth and density dependent.
The resistance coefficient ζ pv of the top, combustion zone of so calculating provides the good indication of speed 1, the 2 required correction of feed system, because in fact resistance coefficient ζ pv provides the good estimation of the thickness of waste material layer in the combustion zone.
Yet according to the present invention, the setting value ζ sp of resistance coefficient may be too high or too low and need further to proofread and correct.According to the present invention, to need to providing by the estimated position Fpv that uses crest of flame of proofreading and correct, described estimation is provided by the graphical analysis of combustion zone camera image.In a preferred embodiment, camera is the R-G-B image camera, yet, also can use the camera of other types, for example infrared camera.
In exemplary embodiment shown in Figure 1, the crest of flame controller is equipped with the setting value Fsp of crest of flame and the estimated value Fpv of crest of flame position, it is provided for the PID controller and will be added to from the output of the described PID controller of crest of flame the setting value ζ sp of resistance coefficient controller, enters the charging rate 1 of ignitable fuel of combustion chamber and the control of the speed 2 transmitted in order to proofread and correct controlling value and correction of a final proof on continuous the first incineration grate.
Correspondingly, accompanying drawing 2 illustrates corresponding system, yet wherein, the output valve of crest of flame controller multiply by the setting value ζ sp of resistance coefficient controller.
In addition, accompanying drawing 3 illustrates alternative arrangements, wherein, enter the speed 1 of combustion chamber and before the PID controller of the speed 2 of transporting on continuous the first incineration grate being provided for to be respectively used to control ignitable fuel is supplied with, the output signal of crest of flame controller multiply by fire grate speed setting value 3, and mode is as the resistance coefficient controller output signal multiply by its result.

Claims (4)

1. the method for the speed (2) transmitted on continuous the first incineration grate of the speed of the feed system of a control combustion equipment (1) and fuel, described combustion apparatus comprises: the feed system of fuel being supplied with a plurality of mobile fire grates, fuel is supplied with forward also experience drying, igniting, burning and after-flame successively on mobile fire grate, the primary air that is used for burning provides from the fire grate below and passes fuel bed on fire grate, and described method comprises
-calculate the resistance coefficient (ζ pv) by the air-flow of incineration grate and fuel,
-based on the speed (1) of the feed system of resistance coefficient (ζ pv) control combustion equipment and the speed (2) that fuel transmits on continuous the first incineration grate, and
-estimation (Fpv) of crest of flame position is provided by the graphical analysis of combustion zone camera image, and
-use the estimated position (Fpv) of crest of flame that the control correction of the speed (2) that speed (1) to feed system and fuel transmits on continuous the first incineration grate is provided based on resistance coefficient (ζ pv).
2. method according to claim 1, the feedforward of wherein based on resistance coefficient (ζ pv), the estimated position (Fpv) by crest of flame is proofreaied and correct in control is introduced and is carried out.
3. method according to claim 1, the convergent-divergent of wherein based on resistance coefficient (ζ pv), the estimated position (Fpv) by crest of flame being proofreaied and correct in control is introduced and is carried out.
4. method according to claim 1, the gain convergent-divergent of wherein based on resistance coefficient (ζ pv), the estimated position (Fpv) by crest of flame being proofreaied and correct in control is introduced and is carried out.
CN2008801297643A 2008-06-10 2008-06-10 Method of controlling a combustion facility using a combination of coefficient of resistance and flame front estimation Active CN102057223B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2008/001489 WO2009150480A1 (en) 2008-06-10 2008-06-10 Method of controlling a combustion facility using a combination of coefficient of resistance and flame front estimation

Publications (2)

Publication Number Publication Date
CN102057223A CN102057223A (en) 2011-05-11
CN102057223B true CN102057223B (en) 2013-06-12

Family

ID=40351820

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008801297643A Active CN102057223B (en) 2008-06-10 2008-06-10 Method of controlling a combustion facility using a combination of coefficient of resistance and flame front estimation

Country Status (10)

Country Link
US (1) US20110123939A1 (en)
EP (1) EP2324288B1 (en)
JP (1) JP5449335B2 (en)
KR (1) KR101531738B1 (en)
CN (1) CN102057223B (en)
CA (1) CA2725490C (en)
DK (1) DK2324288T3 (en)
ES (1) ES2704012T3 (en)
PL (1) PL2324288T3 (en)
WO (1) WO2009150480A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015155565A1 (en) * 2014-04-07 2015-10-15 Babcock & Wilcox Vølund A/S Regulation of incineration in dependence of fluctuations in the price on electricity
JP6723864B2 (en) * 2016-08-01 2020-07-15 株式会社タクマ Combustion control device equipped with a garbage moving speed detection function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081940A (en) * 1989-11-10 1992-01-21 Ishikawajima-Harima Heavy Industries Co., Ltd. Waste disposal method and apparatus
US5261337A (en) * 1991-06-21 1993-11-16 Mitsubishi Jukogyo Kabushiki Kaisha Combustion control method of refuse incinerator
EP0955499A2 (en) * 1998-05-05 1999-11-10 MARTIN GmbH für Umwelt- und Energietechnik Process for regulating the firing power in combustion plants

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591919A (en) * 1982-06-24 1984-01-07 Mitsubishi Heavy Ind Ltd Control method of combustion
JPS59195012A (en) * 1983-04-20 1984-11-06 Hitachi Ltd Combustion control method
DE3904272C3 (en) * 1989-02-14 1998-01-08 Steinmueller Gmbh L & C Method for detecting the radiation emanating from at least two spatially separate locations of at least one combustion zone on a grate and device for detecting such radiation
DE4344906C2 (en) * 1993-12-29 1997-04-24 Martin Umwelt & Energietech Process for controlling individual or all factors influencing the combustion on a grate
JP3099229B2 (en) * 1997-07-16 2000-10-16 住友重機械工業株式会社 Waste transfer control system for horizontal stoker type waste incinerator
JP3763963B2 (en) * 1998-03-16 2006-04-05 住友重機械工業株式会社 Stoker temperature control device for waste incinerator and combustion control device for waste incinerator equipped with the same
EP1726876B1 (en) * 2005-05-27 2015-05-06 Takuma Co., Ltd. Improved method of combusting solid waste
ES2473592T3 (en) * 2006-09-30 2014-07-07 Steag Powitec Gmbh Procedure for the regulation of a combustion process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081940A (en) * 1989-11-10 1992-01-21 Ishikawajima-Harima Heavy Industries Co., Ltd. Waste disposal method and apparatus
US5261337A (en) * 1991-06-21 1993-11-16 Mitsubishi Jukogyo Kabushiki Kaisha Combustion control method of refuse incinerator
EP0955499A2 (en) * 1998-05-05 1999-11-10 MARTIN GmbH für Umwelt- und Energietechnik Process for regulating the firing power in combustion plants

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
JP昭59-1919A 1984.01.07
JP特开平11-257635A 1999.09.21
JP特开平11-37436A 1999.02.12

Also Published As

Publication number Publication date
CN102057223A (en) 2011-05-11
KR101531738B1 (en) 2015-06-25
CA2725490A1 (en) 2009-12-17
EP2324288A1 (en) 2011-05-25
KR20110026470A (en) 2011-03-15
DK2324288T3 (en) 2018-12-17
WO2009150480A1 (en) 2009-12-17
CA2725490C (en) 2015-11-24
PL2324288T3 (en) 2019-05-31
JP5449335B2 (en) 2014-03-19
EP2324288B1 (en) 2018-11-21
ES2704012T3 (en) 2019-03-13
US20110123939A1 (en) 2011-05-26
JP2011523022A (en) 2011-08-04

Similar Documents

Publication Publication Date Title
EP0773408A1 (en) Furnace inside state estimation control apparatus of pulverized coal combustion furnace
CN102453792B (en) Method and equipment for controlling furnace pressure of continuous annealing furnace
US10954854B2 (en) Power plant methods and apparatus
WO2010056789A3 (en) Gaseopus fuel engine charge density control system
CN102057223B (en) Method of controlling a combustion facility using a combination of coefficient of resistance and flame front estimation
CN103742122A (en) Underground coal gasification system and gasification method
KR20120106965A (en) Method for correcting the combustion settings of a set of combustion chambers and apparatus implementing the method
JP2006177651A5 (en)
CA2371197C (en) System for determining process parameters relating to thermal processes such as, for instance, waste incineration
CN106326562B (en) Energy storage quantification method for supercritical circulating fluidized bed boiler unit
CN105042630B (en) Oxygen-enriched combustion system oxygen supply control device and method
US6659026B1 (en) Control system for reducing NOx emissions from a multiple-intertube pulverized-coal burner using true delivery pipe fuel flow measurement
KR101038116B1 (en) apparatus and method of furnace pressure control in regenerative reheating furnace
WO1998029691A3 (en) Method and apparatus for burning process gas
KR101175438B1 (en) Apparatus for controlling combustion of hot stove and method thereof
JP5756499B2 (en) Combustion facility control method using combination of resistance coefficient and flame front estimation
CN217928774U (en) Control system for organic solid waste treatment apparatus
CN107101221A (en) A kind of ACC air quantity control systems for waste incineration
JP2003108231A (en) Flow-rate control apparatus for fluid
JPS56127121A (en) Method of controlling combustion apparatus
CN104006407A (en) Air flow feedback type negative pressure combustion-supporting smoke discharging system of biomass particle combustor
Kuo System simulation and control of batch-fed solid waste incinerators
CN109876660A (en) A kind of Direct-type low-temperature smoke air SCR denitrating system and its working method
UA110788U (en) SYSTEM OF AUTOMATIC REGULATION OF HEATING PROCESSES OF BOILERS WITH THE SUPPLY OF HIGH DUST COAL CONCENTRATION BURNERS
JPS56133532A (en) Combustion controlling method for hot blast 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
C14 Grant of patent or utility model
GR01 Patent grant