CN102661613A - Air and powder dynamic balancing method based on on-line measurement of coal powder distribution - Google Patents
Air and powder dynamic balancing method based on on-line measurement of coal powder distribution Download PDFInfo
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Abstract
The invention discloses an air and powder dynamic balancing method based on on-line measurement of coal powder distribution, and belongs to the technical field of boiler combustion optimization regulation. An adjustable shrinkage cavity, an on-line coal powder flow monitoring system, an on-line fly ash measuring system, a coal powder diffuser and a coal powder control valve are arranged on a coal pipe of the traditional coal mill, and the primary air speed, the coal powder concentration and the fly ash carbon content are regulated. The coal powder flow distribution is changed by a physical method, coal powder flow parameters are acquired by an on-line detection system, and fine adjustment is carried out by the adjustable shrinkage cavity and the coal powder control valve, so that the balanced distribution of air and powder is realized and a good precondition is provided for the deep research of a boiler combustion optimization technique.
Description
Technical field
The invention belongs to boiler combustion optimization regulation technology field, relate in particular to a kind of wind powder dynamic leveling method based on the coal dust distributing on-line measurement.
Background technology
The unit pulverized-coal system of modern big capacity unit widespread usage, the distribution of the interior wind speed of pulverized coal channel that each burner is corresponding, the distribution of pulverized coal flow and harmony have fundamental influence to security, economy, the feature of environmental protection of stove internal combustion.Thermal test shows that it is extremely unbalanced that the coal powder density of coal pulverizer outlet pulverized coal channel distributes, even possibly surpass ± 30% deviation, is the burning optimization problem demanding prompt solution.
On the current market and the burning optimization technology of scientific research institution be all sorts of flowers open, let a hundred schools contend.With software is the burning optimization technology of main means, and important performance parameter or operational factor mainly obtain from DCS, are optimized guidance according to the data among the DCS.But the parameter of the operational factor of power plant, particularly wind, powder, ash still adopts traditional measuring technique, and certainty of measurement is restricted.Most power plant lack the on-line measurement means of parameters such as coal powder density, unburned carbon in flue dust.Primary air velocity mainly is a differential pressure measurement, and the precision of measurement is low, and easily stifled ash in the running makes the measuring point fault.Simultaneously, simple software optimization technology regulating power is limited, if the intrinsic physics curve of unit is difficult to improve, the degree of depth of burning optimization is restricted.
Current to the burning optimize and revise, mainly concentrate on the thermal test direction, parameters such as in-site measurement coal powder density; Improve burning through regulating air distribution; This optimizing and revising exists a lot of limitation, and the measurement of coal powder density relies on the mode of coal dust sampling to measure, and uses sampling gun constant speed in pulverized coal channel to extract sample; Weight method is weighed, and obtains the relative mass flow of coal dust.The measurement of primary air velocity adopts backing tube to measure, and demarcates complicacy, and the surveying work amount is big.Accomplish primary combustion and optimize and revise, need great amount of time and manpower usually.The operating mode that this burning adjustment relates to is optimizing and revising of several kinds of typical conditions; Owing to lack the on-line measurement parameter in wind powder pipe road and the feedback parameter of unburned carbon in flue dust; That normally under cold condition, realizes optimizes and revises, and has certain deviation during hot operation again.
The transformation of leveling also appears distributing to coal dust in the scrap build of current power plant, but is the physical equipment that certain design is installed generally speaking, redistributes pulverized coal flow, and adjustment wind, powder distribute.Can't consider to become multiple situation such as coal, variable working condition in the assigning process; And owing to lack the rule of online adjustment; Usually also be that scrap build adds cold conditions leveling technology; Coal dust is not distributed in hot running status and to operate, also be difficult to satisfy the requirement of follow-up adjustment under the situation that drift appears in set state.
Along with the development of burning optimization technology and perfect, increase advanced monitoring system and necessary conditioning equipment, realize that cold conditions leveling and hot leveling combine, be the necessary condition that burning optimization deeply carries out.
Summary of the invention
Distribute deficiencies such as inequality, online accurate measurement device and coal dust conditioning equipment to mentioning coal dust in the above-mentioned background technology, the present invention proposes a kind of wind powder dynamic leveling method based on the coal dust distributing on-line measurement.
Technical scheme of the present invention is that a kind of wind powder dynamic leveling method based on the coal dust distributing on-line measurement is characterized in that this method may further comprise the steps:
Step 1: under unit cold conditions environment, measure the primary air velocity deviation in the pulverized coal channel, when primary air velocity deviation during greater than the wind speed setting deviation, adjustment unit cold conditions environment is the wind speed deviation next time, makes it be not more than the wind speed setting deviation;
Step 2: under the hot environment of unit, measure the primary air velocity deviation in the pulverized coal channel, when primary air velocity deviation during greater than the wind speed setting deviation, the hot environment of adjustment unit is the wind speed deviation next time, makes it be not more than the wind speed setting deviation;
Step 3: measure the coal powder density deviation in the pulverized coal channel; When measured coal powder density deviation when setting the concentration deviation, the coal powder density deviation is adjusted to sets in the concentration deviation;
Step 4: under the hot environment of unit, measure unburned carbon in flue dust in real time; According to the unburned carbon in flue dust change curve, regulate the proportioning of wind and coal dust amount, reach the coal-air ratio of optimization.
Said wind speed setting deviation is [0.95Q, 1.05Q], and wherein, Q is the primary air velocity average.
Said setting concentration deviation is [0.9M, 1.1M], and wherein, M is the coal powder density average.
The present invention can online acquisition coal dust flow parameter; Rely on physics mode tentatively to change the coal dust flow distribution; Cooperate integrated leveling technology; Utilize the combination of cold conditions leveling and hot leveling, realize the balance of coal dust and air mass flow, for boiler combustion optimization technological the good premise condition deeply is provided.
Description of drawings
Fig. 1 is controlled at the installation of coal pulverizer outlet for coal dust disperser and coal dust;
Fig. 2 is the pulverized coal flow on-line monitoring system;
Fig. 3 is a flow chart of the present invention.
The specific embodiment
Below according to Figure of description, in conjunction with preferred embodiment to technical scheme further explain of the present invention.
Content of the present invention: at first need the existing measuring technique of investigate group, replenish advanced technology, pulverized coal flow on-line measurement system that certainty of measurement is high, be used to measure the coal powder density and the coal dust flow velocity of each pulverized coal channel; Advanced unburned carbon in flue dust in-situ measurement equipment is installed, is used for measuring the situation of the unburned carbon loss of combustion process, feedback leveling effect.Obtain the distribution situation of current unit coal powder density and primary air velocity through the pulverized coal flow on-line monitoring system, carry out the design and the pulverized coal channel transformation of pulverized coal flow balance sysmte according to the distribution situation of pulverized coal channel.The pulverized coal flow equilibrium system mainly comprises coal dust disperser and coal dust control valve.
Fig. 1 coal dust disperser and coal dust are controlled at the installation of coal pulverizer outlet.Coal dust disperser and coal dust control valve carry out customized according to the type of the coal powder density of on-line measurement, primary air velocity distributed data, pipeline data, coal pulverizer.
Type, number of tubes according to coal pulverizer are different, and the leveling system model of preliminary election also is different.The type selecting scheme that leveling system adopts among the present invention has following several kinds:
1. four pulverized coal channels of a coal pulverizer band adopt the coal dust disperser of one minute four model.The wind powder mixture of four pipelines of coal pulverizer outlet be summarised in a house steward in, house steward's top installs coal dust disperser and by-pass valve control additional.
2. five pulverized coal channels of a coal pulverizer band adopt and divide two, one fens three model coal dust dispersers to control the coal dust distribution respectively.Respectively which two pipeline, which three pipeline are gathered and to look existing coal dust distribution condition of each pipeline and field position restriction and decide.
3. 6 pulverized coal channels of a coal pulverizer band adopt one minute three model coal dust disperser, and per three coal pipe wind powder mixtures are aggregated among the house steward, evenly get into each coal pipe through being reclassified as three strands of pulverized coal flows behind coal dust disperser and the by-pass valve control.
The coal dust disperser carries out numerical simulation analysis according to the Monitoring Data of on-line monitoring system, requires manufacturer's structural configuration can break up coal dust rope stream, fully improves coal dust in the fork position and distributes.The model of pulverized coal flow control valve is consistent with the model of coal dust disperser, is installed at coal dust disperser turnoff, through control valve control blade, the balance that meticulous adjusting coal dust distributes.
Fig. 2 is the pulverized coal flow on-line monitoring system.This system is electrostatic charge method coal dust flow velocity, the online accurate measuring systems of concentration.Adopt the static load detection device of non-insertion, coiled structure (promptly being mounted in a brachymemma pipe of power transportation pipe), the annular sensor that is embedded on the short tube inner surface with a row detects the alternating current load.
In order to guarantee to measure accuracy, reduce and disturb; The particularly interference of the flow-disturbing effect of shrinkage cavity; Confirm in the technology mount scheme; A pulverized coal flow on-line monitoring system is respectively installed in the position near burner at each coal dust arm of coal pulverizer, needs the straight-run of pipe road during installation, and the length requirement of straight pipeline is getting final product more than three times of pipe diameter.The pulverized coal flow on-line monitoring system substitutes a segment pipe, is connected with original pipeline through flange, during the unit light maintenance, can install by completion equipment.
Pulverized coal flow on-line monitoring system measuring pulverized coal concentration accurately distributes and the coal dust flow velocity; Cooperate with weighing coal feeder; Just can report out accurately to be transferred to each ducted pulverized coal mass flow, reference is provided for the coal-air ratio of each burner of control.
Fig. 3 is a flow chart of the present invention.Dynamic wind, coal dust leveling technology at first need be selected the pulverized coal flow on-line monitoring system, and important technology parameters such as accurate on-line measurement coal powder density, coal dust flow velocity, unburned carbon in flue dust are for the leveling process provides diagnosis basis.Secondly, according to the coal dust distribution measuring data of unit standing state, analyze current unit coal dust and distribute uneven concrete condition, the model of selection configuration coal dust disperser and coal dust control valve is purchased and erection unit, accomplishes the pulverized coal channel transformation.
On-line monitoring coal powder density, primary air velocity, three parameters of unburned carbon in flue dust are carried out dynamic leveling according to monitoring result.The core of dynamic leveling is the comprehensive leveling method of primary air velocity, coal powder density, coal-air ratio, is divided into leveling of unit cold conditions and hot leveling, through progressively adjusting and revise the amplitude of accommodation, progressive leveling wind, powder dynamic assignment.
The inventive method may further comprise the steps:
(1) at each pulverized coal channel adjustable shrinkage cavity is installed, the pulverized coal flow on-line monitoring system is installed at the pulverized coal channel place after coal dust flows the adjustable shrinkage cavity of downstream direction, at the tail position of pulverized coal channel the unburned carbon in flue dust on-line monitoring system is installed.Adjustable shrinkage cavity is in each pulverized coal channel straight-run of pipe section, and will avoid the elbow position.Test adjustable shrinkage cavity in back is installed, to realize the variation of aperture 100% to 0%, the effect of adjustable shrinkage cavity is the leveling primary air velocity; The pulverized coal flow on-line monitoring system is installed in straight-run of pipe fragment position place; Be preferably mounted at pulverized coal channel straight length starting point place and begin the position that length reaches three times of calibers; And be the straight length that is positioned at adjustable shrinkage cavity top; Be used for on-line monitoring coal powder density and primary air velocity, obtain online coal dust and distribute.
(2) measure the coal powder density distribution bias in the pulverized coal channel through the pulverized coal flow on-line monitoring system;
(3) according to coal powder density distribution bias customization coal dust disperser and coal dust control valve.Pulverized coal flow disperser and coal dust control valve are preferably mounted on each pulverized coal channel in coal pulverizer exit, effectively break up rope stream pulverized coal flow and realize the online meticulous adjusting that coal powder density distributes.
(4) under unit cold conditions environment; Measure the primary air velocity deviation in the pulverized coal channel through the pulverized coal flow on-line monitoring system; When primary air velocity deviation during greater than the wind speed setting deviation, the adjustable shrinkage cavity in each pulverized coal channel begins adjustment by 100% aperture, adjusts adjustable shrinkage cavity repeatedly; Up to unit cold conditions environment next time the wind speed deviation be not more than the wind speed setting deviation, the leveling of primary air velocity cold conditions finishes;
(5) under the hot environment of unit; Measure the primary air velocity deviation in the pulverized coal channel through the pulverized coal flow on-line monitoring system; When primary air velocity deviation during greater than the wind speed setting deviation; Finely tune adjustable shrinkage cavity repeatedly, up to the hot environment of unit next time the wind speed deviation be not more than the wind speed setting deviation, the hot leveling of primary air velocity finishes;
(6) on the basis of (5), measure the coal powder density deviation in the pulverized coal channel through the pulverized coal flow on-line monitoring system; When measured coal powder density deviation when setting the concentration deviation; Take all factors into consideration the variation of overall importance of each coal pulverizer wind, powder distribution; The position maximum from the coal powder density deviation begins; Regulate the corresponding pulverized coal flow control valve of the maximum pulverized coal channel of coal powder density deviation, setting in the concentration deviation up to the coal powder density deviation, the hot leveling of coal powder density finishes;
(7) under the hot environment of unit, measure unburned carbon in flue dust in real time through the unburned carbon in flue dust on-line monitoring system.According to the unburned carbon in flue dust change curve, regulate the proportioning of wind and coal dust amount, reach the coal-air ratio of optimization.
The wind speed setting deviation is [0.95Q, 1.05Q], and wherein, Q is the primary air velocity average.
Setting the concentration deviation is [0.9M, 1.1M], and wherein, M is the coal powder density average.
The present invention is on the basis of important parameters such as pulverized coal channel transformation and on-line monitoring wind, powder, ash, and dynamic leveling wind, powder distribute, and realize the leveling of overall importance of each coal pulverizer.And the leveling process combines cold conditions leveling and hot leveling, compares the cold conditions adjustment of thermal test in the past, has improved the precision and the flexibility of adjustment greatly.
In wind, the accurate leveling system of powder, the coal dust control valve adopts hardwire to realize communication, and valve is a magnetic valve.The online accurate measuring systems of coal dust flow velocity, concentration adopts ModBusTCP to realize communication, and wind speed, measurement of concetration are accurate, can cooperate other parameters of real-time monitoring system to realize analysis-by-synthesis.Unit for six coal pulverizers, five coal pipes of every coal pulverizer is an example, and concrete configuration is following:
6 cover one-to-two coal dust dispersers, three duct arrangement of certain of coal pulverizer, one cover;
One minute three coal dust disperser of 6 covers, two other duct arrangement one cover of coal pulverizer;
12 cover coal dust by-pass valve controls, each disperser configuration one cover
30 cover coal dust flow velocitys, the online accurate measuring systems of concentration, each coal pipe straight length configuration one cover.
An interface message processor (IMP) is used for online monitoring data and receives;
A publisher server can be shared with other performance datas of burning optimization, is used for statistics and issue pulverized coal channel wind powder leveling user display interface.
The above; Be merely the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (3)
1. wind powder dynamic leveling method based on the coal dust distributing on-line measurement is characterized in that this method may further comprise the steps:
Step 1: under unit cold conditions environment, measure the primary air velocity deviation in the pulverized coal channel, when primary air velocity deviation during greater than the wind speed setting deviation, adjustment unit cold conditions environment is the wind speed deviation next time, makes it be not more than the wind speed setting deviation;
Step 2: under the hot environment of unit, measure the primary air velocity deviation in the pulverized coal channel, when primary air velocity deviation during greater than the wind speed setting deviation, the hot environment of adjustment unit is the wind speed deviation next time, makes it be not more than the wind speed setting deviation;
Step 3: measure the coal powder density deviation in the pulverized coal channel; When measured coal powder density deviation when setting the concentration deviation, the coal powder density deviation is adjusted to sets in the concentration deviation;
Step 4: under the hot environment of unit, measure unburned carbon in flue dust in real time; According to the unburned carbon in flue dust change curve, regulate the proportioning of wind and coal dust amount, reach the coal-air ratio of optimization.
2. a kind of wind powder dynamic leveling method based on the coal dust distributing on-line measurement according to claim 1 is characterized in that said wind speed setting deviation is [0.95Q, 1.05Q], and wherein, Q is the primary air velocity average.
3. a kind of wind powder dynamic leveling method based on the coal dust distributing on-line measurement according to claim 1 is characterized in that said setting concentration deviation is [0.9M, 1.1M], and wherein, M is the coal powder density average.
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| CN103941036A (en) * | 2014-05-09 | 2014-07-23 | 国家电网公司 | Nozzle wind speed measurement system and method suitable for cold state test of pulverized coal burner |
| CN103953942A (en) * | 2014-05-17 | 2014-07-30 | 国家电网公司 | Primary wind speed leveling method for pulverized coal boiler |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2256984Y (en) * | 1996-05-22 | 1997-06-25 | 贾臻 | High-concentration coal burner capable of regulating concentration and reheating temp |
| CN101303129A (en) * | 2008-06-27 | 2008-11-12 | 郑州科试控制技术有限公司 | Classification distributed type boiler wind powder on-line control method |
| JP4241342B2 (en) * | 2003-11-25 | 2009-03-18 | 三菱重工業株式会社 | Pulverized coal burner and low ash melting point sub-bituminous pulverized coal combustion method |
| CN201352219Y (en) * | 2009-01-05 | 2009-11-25 | 中能联源（北京）技术有限公司 | Air and pulverized coal flow rate on-line monitoring system and air and pulverized coal on-line monitoring system |
-
2012
- 2012-05-10 CN CN201210144920.1A patent/CN102661613B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2256984Y (en) * | 1996-05-22 | 1997-06-25 | 贾臻 | High-concentration coal burner capable of regulating concentration and reheating temp |
| JP4241342B2 (en) * | 2003-11-25 | 2009-03-18 | 三菱重工業株式会社 | Pulverized coal burner and low ash melting point sub-bituminous pulverized coal combustion method |
| CN101303129A (en) * | 2008-06-27 | 2008-11-12 | 郑州科试控制技术有限公司 | Classification distributed type boiler wind powder on-line control method |
| CN201352219Y (en) * | 2009-01-05 | 2009-11-25 | 中能联源（北京）技术有限公司 | Air and pulverized coal flow rate on-line monitoring system and air and pulverized coal on-line monitoring system |
Non-Patent Citations (2)
| Title |
|---|
| 谢永兴: "W型火焰锅炉一次风管风粉调平试验", 《湖南电力》 * |
| 高继录，张勇，蒋翀: "600MW超临界锅炉燃烧优化调整试验研究", 《东北电力技术》 * |
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