CN102257325B - For equipment and the method for Optimizing Combustion in power station - Google Patents
For equipment and the method for Optimizing Combustion in power station Download PDFInfo
- Publication number
- CN102257325B CN102257325B CN200980151076.1A CN200980151076A CN102257325B CN 102257325 B CN102257325 B CN 102257325B CN 200980151076 A CN200980151076 A CN 200980151076A CN 102257325 B CN102257325 B CN 102257325B
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- China
- Prior art keywords
- dimension
- distribution
- combustion chamber
- temperature distribution
- measurement
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- 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.)
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Classifications
-
- 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
- F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
Abstract
The present invention relates to a kind of method and apparatus for optimizing fuel combustion in the combustion chamber in power station, wherein, at least one dimension is measured actual concentrations distribution and/or the Temperature Distribution of material in combustion chamber, assess the distribution of described actual concentrations and/or Temperature Distribution, and control the burning of fuel like this, make at least one dimension, form symmetrical CONCENTRATION DISTRIBUTION and/or Temperature Distribution, wherein, when assessing, calculate at least one represent actual concentrations distribution and/or the symmetric characteristic of Temperature Distribution and control time change at least one controling parameters according at least one characteristic.
Description
The present invention relates to a kind of equipment and method for optimizing fuel combustion in the combustion chamber in power station, wherein, in this combustion chamber, the actual concentrations of measurement of species distributes and/or actual temperature distribution.
In power station, basic target is, in combustion chamber, power station, occurent fuel monitored by the boiler as far as possible in large area such as having 10 meters × 10 meters of square basal planes, therefrom can derive the parameter into Optimizing Combustion process necessity.
Therefore, as method known absorbing spectroscopic methodology.The known cement bond logging temperature technique of measuring technique as an alternative.The average measuring spectral line in boiler room or combustion chamber is merely able to by absorption spectrum or cement bond logging temperature technique.
In order to calculate Temperature Distribution in the plane of one, combustion chamber and CONCENTRATION DISTRIBUTION in the average that records from the combustion chamber different parts in power station, known CAT measuring technique (computer aided tomography).
Technical problem to be solved by this invention is to provide the method for the burning in a kind of further optimization power station.
This technical problem is solved by a kind of method for optimizing fuel combustion in the combustion chamber in power station by the present invention, and the method comprising the steps of:
-measure the actual concentrations distribution of material at least one dimension in combustion chamber,
Actual concentrations distribution described in-assessment,
-control the burning of described fuel, make described material at least one dimension, form symmetrical CONCENTRATION DISTRIBUTION and
-when described assessment, calculate at least one characteristic of representing described being distributed symmetrically property of actual concentrations and change at least one controling parameters when described control according at least one characteristic described.
The method optimizing fuel combustion by the present invention in the combustion chamber in power station comprises step: the actual concentrations distribution of measurement of species at least one dimension in a combustion chamber, assessment actual concentrations distributes and controls the burning of fuel, makes material at least one dimension, form symmetrical CONCENTRATION DISTRIBUTION.
As an alternative or supplement, the method optimizing fuel combustion by the present invention in the combustion chamber in power station comprises step: the actual temperature distribution of measurement of species at least one dimension in a combustion chamber, assessment actual temperature distributes and controls the burning of fuel, makes at least one dimension, form symmetrical Temperature Distribution.
By in method of the present invention especially when assessing, calculate at least one symmetric characteristic representing actual concentrations distribution and/or actual temperature distribution and change at least one controling parameters when controlling according at least one characteristic.
Correspondingly, the equipment optimizing fuel combustion by the present invention in the combustion chamber in power station comprises a device for the actual concentrations distribution of measurement of species in combustion chamber, power station at least one dimension, a device and a device for making material form symmetry concentration distribution at least one dimension control fuel combustion distributed for assessment of this actual concentrations.
As an alternative or supplement, the equipment optimizing fuel combustion by the present invention in the combustion chamber in power station comprises one for measuring the device of the actual temperature distribution at least one dimension, a device for assessment of actual temperature distribution and a device for making material form symmetrical temperature distribution at least one dimension control fuel combustion in a combustion chamber.
In the first the favourable expansion by the inventive method designs, CONCENTRATION DISTRIBUTION and/or the Temperature Distribution of two dimension is measured when described measurement, and when described assessment by the CONCENTRATION DISTRIBUTION of this two dimension and/or the CONCENTRATION DISTRIBUTION of at least one one dimension of measuring temperature distribution or Temperature Distribution.
In the expansion design favourable by the another kind of the inventive method, when assessing, actual concentrations distribution and/or Temperature Distribution being resolved into multiple section and such control combustion, making in each section, all form symmetrical CONCENTRATION DISTRIBUTION and/or Temperature Distribution.
In other words, by the present invention is based on known measuring technique, obtain at least one dimension of at least one material, preferably the concentration of two dimension and/or Temperature Distribution.Some are calculated along number axis or along the distribution of the one dimension of shaft part or mathematics or curve from the distribution recorded like this.These distributions are calculated preferably to some show or represent the characteristic of mathematical distribution symmetry or asymmetry (gradient).Regulate suitable executive component according to these characteristics, the batcher of such as coal or air conditioning flashboard, make to be formed along each axisymmetric distribution.When there is multiple mathematical distribution along axle, viewed axle is divided into suitable shaft part and carries out above-mentioned optimization to each shaft part afterwards.
By described by method step of the present invention and corresponding device, therefore the homogenous combustion that can realize when Auto-matching controling parameters to a great extent also realizes the burning producing little harmful substance.
The embodiment by solution of the present invention set forth further by the schematic accompanying drawing of following basis.In the accompanying drawings:
Fig. 1 is an embodiment by present device,
Fig. 2 be by method of the present invention an embodiment and
Fig. 3 be with shade of gray display by the present invention optimize before and after in the measurement plane of the equipment by Fig. 1 CO and O
2the image of distribution.
The combustion chamber 10 in coal power station of not illustrating further shown in Figure 1, when coal power station is run, coal fire burns in this combustion chamber 10.At this, in this combustion chamber 10, there are fuel (coal and give birth to fuel gas), flame 11 and waste gas.
Two measurement planes 12,14 are set in combustion chamber 10, in their edge, there is spaced measuring instrument 16 respectively.Every two described measuring instruments 16 can realize carrying out linear measurement in affiliated measurement plane 12 or 14, wherein, can measure such as substance C O (carbon monoxide) and O by these measuring instruments 16 and affiliated apparatus for evaluating 18
2the concentration of (oxygen).
In addition, the Temperature Distribution of affiliated measurement plane 12 or 14 can be measured by measuring instrument 16 and apparatus for evaluating 18.At this, the combination that this measurement calculates based on measuring technique and CAT.
Apparatus for evaluating 18 is operationally coupled with optimization device 22, operating means 24 and control device or control technology 26 by data/address bus 20.By operating means 24, utilize the actual concentrations distribution and Temperature Distribution that are calculated by apparatus for evaluating 18 like this, make to obtain the suggestion of some Optimizing Combustions by optimization device 22 and these suggestions can be applied in control device 26.Thus, in combustion chamber 10, burned flame 11 is especially reducing NO
x(nitrogen oxide) discharge aspect is optimized.
In order to optimize, optimization device 22 is assessed measured actual concentrations distribution and is become by Combustion System, makes the CONCENTRATION DISTRIBUTION at least forming described material oxygen and carbon monoxide symmetry on an axis or a dimension.
Relevant method is illustrated in fig. 2.The method is included in the step 28 measuring the CONCENTRATION DISTRIBUTION of at least oxygen and carbon monoxide in measurement plane 12 and 14.In step 30, measuring tempeature distribution in these two measurement planes.
These input data are used to from CONCENTRATION DISTRIBUTION, evaluate the distribution of one dimension or mathematics or the relative token number of curve and being distributed symmetrically property of expression or asymmetry in the step 32.In addition, distribution or curve resolve into multiple section with respective affiliated distribution in the step 32.
Be optimized burning according to described measuring and calculating in step 34 afterwards, make to form symmetrical CONCENTRATION DISTRIBUTION and Temperature Distribution.This distribution can monitor in measurement plane 14 and 16, forms the regulating loop that is got back to step 28 generally thus.
Although feature or the information of thousands of burnings can be evaluated from the measurement by step 28 and 30, in described step, only process a very little part for these information wittingly.Otherwise rational cost-benefit ratio can not be realized.
Described assessment substantially simplifies based on three basic assumptions or three and carries out: only use direct measured value, the characteristic sum gradient of measurement.Therefore, based on especially 20 to 25 measure crosspoints, rebuild especially measured concentration and the distributed faults of temperature.These direct measured values are described as characteristic vector.In addition, if use the basic difference between these direct measured values and expect to calculate median according to interpolation method.
In order to obtain the distribution on the direction of each expectation, horizontal line, vertical line and two diagonal along each measured zone (namely measuring each region between crosspoint) calculate first to fourth feature.These features are calculated based on along the molded line of each direction of measurement or dimension or distribution.First and second features represent the mean value and variance or deviation that distribute.The gradient of this third and fourth feature representative distribution and curvature.Gradient represents that the one of symmetry and asymmetry is measured.Curvature is the distribution of this distribution comparison with standard or normal distribution is that more precipitous or milder one is measured.
In addition, in various measured zone, the gradient of mean value is calculated.The size of gradient or value are given in the information (such as illustrating with arrow respectively in each measured zone) that where there is peak value or centrostigma in this distribution.The result of burning optimization is carried out like this shown in Fig. 3.Clearly visible by Fig. 3, the carbon monoxide after the optimization in measurement plane 12 and oxygen are symmetric to a great extent.
Claims (8)
1., for optimizing a method for fuel combustion in the combustion chamber in power station, the method comprising the steps of:
-by absorption spectrometry and CAT measuring technique measure material in (28) combustion chamber at least one measurement plane of combustion chamber, actual concentrations distribution at least one dimension, wherein, measuring instrument is positioned on the edge of measurement plane spaced reciprocally, and every two in measuring instrument can realize carrying out linear measurement in affiliated measurement plane, wherein the one dimension of the reality of material or the CONCENTRATION DISTRIBUTION of two dimension are determined
The one dimension of reality of-assessment described in (32) or the CONCENTRATION DISTRIBUTION of two dimension, wherein, calculate CONCENTRATION DISTRIBUTION at least one characteristic symmetric of one dimension or the two dimension representing described reality,
The burning of-control (34) described fuel, makes described material at least one dimension, form symmetrical CONCENTRATION DISTRIBUTION and change at least one controling parameters when described control (34) according at least one characteristic described.
2. the method for claim 1, is characterized in that, measures the CONCENTRATION DISTRIBUTION of two dimension in the described measurement (28) and is calculated the CONCENTRATION DISTRIBUTION of at least one one dimension when described assessment (32) by the CONCENTRATION DISTRIBUTION of this two dimension.
3. method as claimed in claim 1 or 2, is characterized in that, when described assessment (32), the CONCENTRATION DISTRIBUTION of described reality is resolved into multiple section, and control described burning, makes on each section, form symmetrical CONCENTRATION DISTRIBUTION.
4., for optimizing a method for fuel combustion in the combustion chamber in power station, the method comprising the steps of:
-by absorption spectrometry and CAT measuring technique measure in a combustion chamber (30) at least one measurement plane of combustion chamber, the distribution of actual temperature at least one dimension, wherein, measuring instrument is positioned on the edge of measurement plane spaced reciprocally, and every two in measuring instrument can realize carrying out linear measurement in affiliated measurement plane, wherein the one dimension of the reality of material or the Temperature Distribution of two dimension are determined
The Temperature Distribution of one dimension that-assessment (32) is actual or two dimension and calculate the symmetric characteristic of Temperature Distribution of at least one one dimension representing described reality or two dimension when described assessment (32),
The burning of-control (34) fuel, makes at least one dimension, form symmetrical Temperature Distribution and change at least one controling parameters when described control (34) according at least one characteristic described.
5. method as claimed in claim 4, is characterized in that, measures the Temperature Distribution of two dimension and from the Temperature Distribution of this two dimension, calculate the Temperature Distribution of at least one one dimension when described assessment (32) when described measurement (30).
6. the method as described in claim 4 or 5, is characterized in that, when described assessment (32), the Temperature Distribution of described reality is resolved into multiple section, and controls described burning, makes in described each section, form symmetrical Temperature Distribution.
7., for optimizing an equipment for fuel combustion in the combustion chamber in power station, this equipment is for implementing according to the method one of claims 1 to 3 Suo Shu, and this equipment comprises
-for measurement of species in a combustion chamber at least one measurement plane of combustion chamber, the device (16) of actual concentrations distribution at least one dimension,
-for assess by the method one of claims 1 to 3 Suo Shu this actual concentrations distribution device (18) and
-for making described material form symmetry concentration distribution at least one dimension control the device (22,26) of fuel combustion.
8., for optimizing an equipment for fuel combustion in the combustion chamber in power station, this equipment is for implementing according to the method one of claim 4 to 6 Suo Shu, and this equipment comprises
-for measuring the device (16) of at least one measurement plane of combustion chamber, at least one dimension actual temperature distribution in a combustion chamber,
-for assess by the method one of claim 4 to 6 Suo Shu described actual temperature distribution device (18) and
-for form symmetrical temperature distribution at least one dimension controlling the device (22,26) of fuel combustion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08172545A EP2199679A1 (en) | 2008-12-22 | 2008-12-22 | Method and device for optimising the combustion in a power plant |
| EP08172545.9 | 2008-12-22 | ||
| PCT/EP2009/067627 WO2010072708A1 (en) | 2008-12-22 | 2009-12-21 | Method and device for optimizing combustion in a power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102257325A CN102257325A (en) | 2011-11-23 |
| CN102257325B true CN102257325B (en) | 2016-03-23 |
Family
ID=40822953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980151076.1A Active CN102257325B (en) | 2008-12-22 | 2009-12-21 | For equipment and the method for Optimizing Combustion in power station |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120058438A1 (en) |
| EP (2) | EP2199679A1 (en) |
| CN (1) | CN102257325B (en) |
| ES (1) | ES2530677T3 (en) |
| WO (1) | WO2010072708A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032590B (en) * | 2010-12-31 | 2012-01-11 | 北京华电天仁电力控制技术有限公司 | Boiler combustion optimizing control system and optimizing control method based on accurate measurement system |
| CN105444201B (en) * | 2014-09-26 | 2018-11-13 | 通用电气公司 | The method and its system of burning optimization |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1016264B (en) * | 1989-04-17 | 1992-04-15 | 卡托维兹南方电力工业区上瓦济斯卡电厂 | Method and automatic optimization system of combustion processes in thermal objects |
| CN1049734C (en) * | 1993-02-24 | 2000-02-23 | Rwe安束根股份有限公司 | A method to determine characteristic geatures of processes forming radicals |
| US6361310B1 (en) * | 1998-01-30 | 2002-03-26 | Siemens Aktiengesellschaft | Method and apparatus for operating a combustion plant |
| US7058617B1 (en) * | 1996-05-06 | 2006-06-06 | Pavilion Technologies, Inc. | Method and apparatus for training a system model with gain constraints |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59195012A (en) * | 1983-04-20 | 1984-11-06 | Hitachi Ltd | Combustion control method |
| US5790420A (en) * | 1989-12-14 | 1998-08-04 | Lang; Fred D. | Methods and systems for improving thermal efficiency, determining effluent flows and for determining fuel mass flow rates of a fossil fuel fired system |
| DE19509412C2 (en) * | 1995-03-15 | 1997-01-30 | Siemens Ag | Method and device for controlling the firing of a steam generator system |
| US7324203B2 (en) * | 2005-02-08 | 2008-01-29 | General Electric Company | Method and apparatus for optical detection for multi-phase combustion systems |
| US7865271B2 (en) * | 2006-11-02 | 2011-01-04 | General Electric Company | Methods and systems to increase efficiency and reduce fouling in coal-fired power plants |
-
2008
- 2008-12-22 EP EP08172545A patent/EP2199679A1/en not_active Withdrawn
-
2009
- 2009-12-21 ES ES09799346T patent/ES2530677T3/en active Active
- 2009-12-21 CN CN200980151076.1A patent/CN102257325B/en active Active
- 2009-12-21 US US13/141,109 patent/US20120058438A1/en not_active Abandoned
- 2009-12-21 WO PCT/EP2009/067627 patent/WO2010072708A1/en active Application Filing
- 2009-12-21 EP EP09799346.3A patent/EP2368071B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1016264B (en) * | 1989-04-17 | 1992-04-15 | 卡托维兹南方电力工业区上瓦济斯卡电厂 | Method and automatic optimization system of combustion processes in thermal objects |
| CN1049734C (en) * | 1993-02-24 | 2000-02-23 | Rwe安束根股份有限公司 | A method to determine characteristic geatures of processes forming radicals |
| US7058617B1 (en) * | 1996-05-06 | 2006-06-06 | Pavilion Technologies, Inc. | Method and apparatus for training a system model with gain constraints |
| US6361310B1 (en) * | 1998-01-30 | 2002-03-26 | Siemens Aktiengesellschaft | Method and apparatus for operating a combustion plant |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2530677T3 (en) | 2015-03-04 |
| EP2199679A1 (en) | 2010-06-23 |
| CN102257325A (en) | 2011-11-23 |
| WO2010072708A1 (en) | 2010-07-01 |
| US20120058438A1 (en) | 2012-03-08 |
| EP2368071A1 (en) | 2011-09-28 |
| EP2368071B1 (en) | 2015-01-28 |
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Effective date of registration: 20220130 Address after: Munich, Germany Patentee after: Siemens energy Global Ltd. Address before: Munich, Germany Patentee before: SIEMENS AG |
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