CN107292523A - The evaluation method and system of fired power generating unit environmental-protecting performance - Google Patents
The evaluation method and system of fired power generating unit environmental-protecting performance Download PDFInfo
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Abstract
The present invention relates to a kind of evaluation method and system of fired power generating unit environmental-protecting performance.Methods described includes step：Obtain the flue gas data of each fired power generating unit；Calculate the desired value of the flue gas data of each fired power generating unit；Each desired value is compared with corresponding preset limit respectively, if desired value exceedes corresponding preset limit, using correspondence desired value as alarm parameter, and the corresponding warning information of the alarm parameter is obtained；Statistics calculating is carried out to each desired value and warning information respectively according to the operating mode divided in advance, the Gas Parameters statistical value of each fired power generating unit to be evaluated is obtained according to statistics result of calculation；The Gas Parameters statistical value of each fired power generating unit and a reference value for meeting environment protection emission requirement of setting are compared, the environmental-protecting performance of each fired power generating unit is determined according to comparative result.The present invention can carry out accurate evaluation to each fired power generating unit environmental-protecting performance.
Description
Technical field
The present invention relates to the evaluation method and thermoelectricity of technical field of power systems, more particularly to fired power generating unit environmental-protecting performance
The evaluation system of unit environmental-protecting performance.
Background technology
Accelerate fired power generating unit environmental protection facility to build, strengthen running fired power generating unit environmental protection facility and supervise, by considering
The power generation dispatching of Environmental Factors is given priority in arranging for low emission unit, thus transfer thermal power plant's reduction discharge pollutants it is horizontal positive
Property, it is the important measures of power industry to promote environmental protection facility to put into operation.Therefore the environmental protection of each fired power generating unit can be evaluated by providing one kind
The method of performance is particularly important.
The content of the invention
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of evaluation method and system of fired power generating unit environmental-protecting performance, energy
It is enough that accurate evaluation is carried out to each fired power generating unit environmental-protecting performance.
A kind of evaluation method of fired power generating unit environmental-protecting performance, including step：
The flue gas data of each fired power generating unit are obtained, wherein the flue gas data include the flue gas data of desulfurizer, taken off
The flue gas data of nitre device and the flue gas data of dust arrester；
The desired value of the flue gas data of each fired power generating unit is calculated, wherein the desired value includes desulfurization desired value, denitration
Desired value and dedusting desired value；
Each desired value is compared with corresponding preset limit respectively, if desired value exceedes corresponding preset limit
Value, using correspondence desired value as alarm parameter, and obtains the corresponding warning information of the alarm parameter, wherein the warning information
The number of times of duration and alarm including alarm；
Statistics calculating is carried out to each desired value and warning information respectively according to the operating mode divided in advance, counted according to statistics
Calculate the Gas Parameters statistical value that result obtains each fired power generating unit to be evaluated；
The Gas Parameters statistical value of each fired power generating unit and a reference value for meeting environment protection emission requirement of setting are compared
Compared with determining the environmental-protecting performance of each fired power generating unit according to comparative result, wherein the environmental-protecting performance of each fired power generating unit is used for conduct
The foundation that each fired power generating unit sorts in energy-conserving and environment-protective power generation dispatching.
A kind of evaluation system of fired power generating unit environmental-protecting performance, including：
Flue gas data acquisition module, the flue gas data for obtaining each fired power generating unit, wherein the flue gas data include
The flue gas data of the flue gas data of desulfurizer, the flue gas data of denitrification apparatus and dust arrester；
Desired value obtains module, the desired value of the flue gas data for calculating each fired power generating unit, wherein the desired value
Including desulfurization desired value, denitration desired value and dedusting desired value；
Warning information obtains module, for each desired value to be compared with corresponding preset limit respectively, if referring to
Scale value exceedes corresponding preset limit, using correspondence desired value as alarm parameter, and obtains the corresponding announcement of the alarm parameter
Alert information, wherein the warning information includes the duration of alarm and the number of times of alarm；
Statistical module, based on carrying out statistics to each desired value and warning information respectively according to the operating mode divided in advance
Calculate, the Gas Parameters statistical value of each fired power generating unit to be evaluated is obtained according to statistics result of calculation；
Environmental-protecting performance evaluation module, for the Gas Parameters statistical value of each fired power generating unit and the satisfaction environmental protection of setting to be arranged
The a reference value for putting requirement is compared, and the environmental-protecting performance of each fired power generating unit is determined according to comparative result, wherein each thermal motor
The environmental-protecting performance of group is used for the foundation sorted as each fired power generating unit in energy-conserving and environment-protective power generation dispatching.
The evaluation method and system of above-mentioned fired power generating unit environmental-protecting performance, from the fired power generating unit of thermal power plant collection desulphurization and denitration,
The flue gas important parameter such as dedusting, calculates the desired value of flue gas data, and obtains warning information, and desired value and warning information are carried out
Statistical analysis, is then evaluated the environmental-protecting performance of each fired power generating unit according to the data of statistical analysis, is realized to thermal power plant
The on-line monitoring of fume emission information, the foundation that the evaluation result sorts as energy-conserving and environment-protective power generation dispatching each fired power generating unit,
It is applied directly in power generation dispatching, grid company is given priority in arranging for low emission unit, is discharged pollutants so as to transfer thermal power plant's reduction
The enthusiasm of level, promotes thermal power plant to realize minimum discharge.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the evaluation method of the fired power generating unit environmental-protecting performance of an embodiment；
Fig. 2 gathers the schematic diagram of flue gas data for the integral collecting device of an embodiment；
Fig. 3 is the schematic flow sheet of the fired power generating unit power generation dispatching method of a specific embodiment；
Fig. 4 is the structural representation of the evaluation system of the fired power generating unit environmental-protecting performance of an embodiment.
Embodiment
It is below in conjunction with the accompanying drawings and preferably real further to illustrate the effect of the technological means of the invention taken and acquirement
Example is applied, to technical scheme, clear and complete description is carried out.
As shown in figure 1, a kind of evaluation method of fired power generating unit environmental-protecting performance, including step：
S110, the flue gas data for obtaining each fired power generating unit, wherein the flue gas data include the flue gas number of desulfurizer
According to, flue gas data of denitrification apparatus and the flue gas data of dust arrester；
S120, calculate each fired power generating unit flue gas data desired value, wherein the desired value include desulfurization desired value,
Denitration desired value and dedusting desired value；
S130, each desired value is compared with corresponding preset limit respectively, if desired value exceed it is corresponding pre-
Restriction value, using correspondence desired value as alarm parameter, and obtains the corresponding warning information of the alarm parameter, wherein described accuse
Alert information includes the duration of alarm and the number of times of alarm；
S140, according to the operating mode divided in advance statistics calculating is carried out to each desired value and warning information respectively, according to
Count the Gas Parameters statistical value that result of calculation obtains each fired power generating unit to be evaluated；
S150, the Gas Parameters statistical value of each fired power generating unit and a reference value of environment protection emission requirement of meeting of setting entered
Row compares, and the environmental-protecting performance of each fired power generating unit is determined according to comparative result, the environmental-protecting performance of wherein each fired power generating unit is used for
The foundation sorted as each fired power generating unit in energy-conserving and environment-protective power generation dispatching.
The evaluation method of above-mentioned fired power generating unit environmental-protecting performance can realize that program may operate in electricity by corresponding program
In the server of net company.This method can be evaluated the environmental-protecting performance of each fired power generating unit, realized to coal steam-electric plant smoke
The on-line monitoring of emission information, the foundation that the evaluation result sorts as energy-conserving and environment-protective power generation dispatching each fired power generating unit, directly
It is applied in power generation dispatching, grid company is given priority in arranging for low emission unit, is discharged pollutants level so as to transfer thermal power plant's reduction
Enthusiasm, promote thermal power plant realize minimum discharge.Each step to this method describes in detail below.
In step s 110, environmental-protecting performance reflects the level that fired power generating unit is discharged pollutants, good environmental protection meaning
Fired power generating unit and discharge pollutants low, environmental-protecting performance difference means that fired power generating unit discharges pollutants height.In order to evaluate each
The environmental-protecting performance of fired power generating unit, it is necessary first to obtain the flue gas data of fired power generating unit in each thermal power plant.Fired power generating unit includes de-
Sulphur device, denitrification apparatus, dust arrester, DCS (Distributed Control System, dcs) systems and
Other control system etc..The flue gas data of fired power generating unit are obtained, that is, obtain desulphurization and denitration, dedusting, DCS system and other controls
The data of system.
To ensure promptness, the accuracy of gathered data, in one embodiment, the flue gas number of each fired power generating unit is obtained
According to can include：Filled by integral collecting device from desulfurizer, denitrification apparatus and dust arrester of each fired power generating unit etc.
Put middle collection flue gas data.Integral collecting device can be using existing device, integral collecting device branch in the prior art
Hold multiple kinds, support a variety of DCS, PLC (Programmable Logic Controller, Programmable logical controller
Device) control system, support remote management, support across the isolation of uni-directional physical device.
As shown in Fig. 2 integral collecting device is directly from the desulphurization and denitration of thermal power plant, dedusting, DCS system and other controls
System acquisition data processed, by dispatch data net by flue gas data transfer to grid company, thermoelectricity is carried out by grid company is unified
The collection and analysis of unit Gas Parameters integration, change collection in conventional art, calculate the present situation that analysis is handled respectively, reduce
Repeated construction.The above method may operate in the analytical equipment shown in Fig. 2, and monitoring arrangement is mainly used in having monitored whether prompting
Warning message etc., the data and analytical equipment that storage device is used to storing collection analyze the data of acquisition.
The type of the flue gas data of collection has a lot, for example, the flue gas data of collection include：Desulphurization and denitration, dedusting, cigarette
The device such as chimney gateway flue gas SO2Concentration, NOXConcentration, dust concentration, oxygen content, temperature, flow, visual plant power consumption take off
Nitre agent, sorbent consumption amount, unit Real-time Load, the data such as unit generation amount.
In the step s 120, the packet that collection comes up is received, the real-time write-back measuring point data of each cycle is arrived after being parsed
Real-time data base.In one embodiment, after the flue gas data for obtaining each fired power generating unit, the cigarette of each fired power generating unit is calculated
Before the desired value of destiny evidence, in addition to：Flue gas data to each fired power generating unit of acquisition are cleaned, and by after cleaning
Each flue gas data is compared with corresponding setting range respectively, if not in setting range, corresponding flue gas data are picked
Remove.
The mode cleaned to data has a lot, can choose suitable processing method according to data characteristic.For example,
In one embodiment, the flue gas data progress cleaning to each fired power generating unit of acquisition includes：To each fired power generating unit of acquisition
Flue gas data carry out the volume of data detection methods such as steady working condition differentiation, redundancy detection and correlation detection.Steady working condition
Judge principle：In continuous preset time, such as in 20min (minute), the maximum deviation from average of each major parameter or maximum phase
It is not more than the limit value as steady state condition of defined to deviation from average.Redundancy detection is used for data error detection and error correction.Phase
Closing property examine be between variable whether the statistical check that related and related degree is carried out.Steady working condition differentiates, redundancy
The volume of data detection method such as detection and correlation detection can be realized according to existing mode in the prior art.
By Data Detection result be stored in relational database to data reject, when corresponding power plant occur data it is bigger than normal,
It is less than normal or when completely disengaged from actual conditions, the data of this period are deleted according to actual conditions so that obtain
The data taken are in a rational scope, and the influence produced is calculated to follow-up desired value to exclude abnormal data.
Flue gas data are calculated in real time, the cycle of calculating can be set according to actual needs, such as according to 10 seconds
Cycle is calculated accordingly automatically.Flue gas data are calculated in real time and are mainly the denitration of real-time computer group, desulfurization and dedusting
Desired value.For example, the desired value (calculating data in real time) calculated includes：Denitration efficiency, desulfuration efficiency, efficiency of dust collection, desulfurization
Power consumption, denitration power consumption, dedusting power consumption, desulfurization consumption rate, denitration consumption rate, dedusting consumption rate, desulfurization amount, denitration amount,
Except dust quantity etc..The specific calculation of These parameters value can realize that such as denitration is imitated using existing mode in the prior art
Rate is the NOx concentration (C1-C2) and the percentage without NOx concentration (C1) in flue gas before denitration removed after denitrating system puts into operation.
The calculating process of These parameters Value Data is transparent visible, real-time increase, deletion and the modification that can be carried out according to demand, Er Qieji
Calculating step can progressively follow the trail of, and the process data of calculating has bottom to look into.
In step s 130, carry out alerting the setting of limits value respectively to real-time calculating parameter (each desired value), work as ginseng
When number exceedes limits value, system carries out information alert to the situation of alarm.The prompting mode of alarm includes color tips and sound
Prompting etc..When parameter exceedes limits value, alarm parameter is also had this parameter as, the warning information of the alarm parameter is recorded, accused
Alert information include at the beginning of real-time measuring point and performance indications alarm between, the end time, the relevant information such as the number of times of alarm.Alarm
At the beginning of between and the end time be alarm duration, at the beginning of alarm between for parameter just begun to exceed limits value when
Between, end time of alarm is parameter by becoming less than time of limits value more than limits value.The number of times of alarm exceedes for parameter
The number of times of limits value.For example, alarm parameter includes：Discharge parameter：SO2 concentration of flue gas, NOXConcentration, dust concentration etc.；Equipment is joined
Number：Denitrification apparatus is asynchronous to put into operation, desulfurizer it is asynchronous put into operation, dust arrester is asynchronous puts into operation.Warning information includes：Cigarette
Gas SO2 concentration over-standards discharge number of times, SO2 concentration over-standards discharge duration, the asynchronous duration that puts into operation of desulfurizer, desulfurizer are non-same
Walk operational percentage etc..
In step S140, the load condition excursion of unit is very big.Load as the most important boundary condition of unit, it
Change can cause the change of many operational factors of unit.Traditional operating mode division methods are often to select several typical cases of unit
Load point is studied as typical condition, such as 50%, 70%, 80%, 90% load condition.Current power plant often faces
Situations such as such as environment constraint changes, typical load is not necessarily its common operating condition.For solve problem above, propose from
The common operating condition of the unit is analyzed in unit historical data, natural division is carried out using clustering algorithm.I.e. in an implementation
In example, before carrying out statistics calculating to each desired value and warning information respectively according to the operating mode divided in advance, in addition to：Adopt
Operating mode division is carried out to the historical data produced during thermal power unit operation with clustering algorithm.Clustering algorithm can be according to use
Existing clustering algorithm in the prior art, such as K-means clustering algorithms.
The statistics for carrying out various operating modes for the result calculated in real time and alarm is calculated is calculated, and real-time result of calculation is (each
Individual desired value) and alarm result of calculation (warning information) carry out statistics calculating respectively according to the operating mode of division, for follow-up cigarette
Gas parameter quantitative qualitative analysis is used.By taking the statistics of real-time result of calculation as an example, the data under a certain operating mode of statistics include：System
Denitration efficiency in the meter phase, desulfuration efficiency, efficiency of dust collection, desulfurization power consumption, denitration power consumption, dedusting power consumption, desulfurization consumption rate,
Denitration consumption rate, dedusting consumption rate, desulfurization amount, denitration amount, except dust quantity etc..By taking the statistics for alerting result of calculation as an example, statistics
Data under a certain operating mode include：SO2 concentration of flue gas discharge beyond standards number of times, SO2 concentration over-standards discharge duration, desulfurization in the statistics phase
The asynchronous duration that puts into operation of device, the asynchronous operational percentage of desulfurizer etc..
In step S150, the evaluation analysis method of Gas Parameters of the present invention is qualitative analysis and quantitative analysis two
Kind, in one embodiment, by the Gas Parameters statistical value of each fired power generating unit and the base for meeting environment protection emission requirement of setting
Quasi- value is compared, and the environmental-protecting performance for determining each fired power generating unit according to comparative result includes：
S1501, detect each fired power generating unit Gas Parameters whether be less than a reference value；
If S1502, being less than, judge that the environmental-protecting performance of corresponding fired power generating unit is qualified；If being not less than, corresponding thermoelectricity is judged
The environmental-protecting performance of unit is unqualified.
A reference value is to judge whether to meet the set value of environment protection emission requirement, that is to say the environment protection emission of national regulation
Value.Above-mentioned progress be the requirement whether fume emission data meet environment protection emission qualitative analysis.If the flue gas of fired power generating unit
Emissions data meets the requirement of environment protection emission, it is determined that the disposal of pollutants of fired power generating unit, which is met, to be required, in follow-up power generation dispatching
During it is contemplated that meeting the fired power generating unit of emission requirement.If the fume emission data of fired power generating unit are unsatisfactory for environmentally friendly row
The requirement put, then directly determine that the disposal of pollutants of the fired power generating unit is unsatisfactory for requiring.Can be with during follow-up power generation dispatching
The fired power generating unit for being unsatisfactory for emission requirement is not considered, promotes these thermal power plants to be rectified and improved, so as to reduce thermal power plant
Pollutant emission.
On the basis of discharge is qualified, quantitative evaluation analysis can also be carried out, so, in one embodiment, sentencing
After the environmental-protecting performance of fixed corresponding fired power generating unit is qualified, in addition to：Calculate the Gas Parameters statistical value of the fired power generating unit with
The difference of a reference value, the scoring of the environmental-protecting performance of each fired power generating unit, the height of the scoring are drawn according to the difference
Size with the difference is proportional relationship.
Brake specific exhaust emission limits value it is low obtain it is more scoring it is higher, score it is higher mean that the environmental-protecting performance of fired power generating unit is better, have
The score value of body can be actually needed according to user and be determined.After the environmental-protecting performance for obtaining each fired power generating unit, then it is basic herein
On the power generation dispatching of each fired power generating unit is ranked up, the sequence is directly applied in power generation dispatching, and power generation dispatching is given priority in arranging for
The fired power generating unit of environmental-protecting performance height (i.e. disposal of pollutants is low), reduces the pollutant emission of thermal power plant, and cacao chocolate tree day-mark bar, excites electricity
Factory excavates the potentiality of itself minimum discharge.
For a better understanding of the present invention, this method application is introduced with reference to a specific embodiment.
S1, by integral collecting device directly gather real-time from the desulphurization and denitration of power plant, dedusting and DCS system etc.
Flue gas data；
The packet (real-time flue gas data) that S2, reception collection come up, the real-time write-back measuring point number of each cycle after being parsed
According to real-time data base, steady working condition differentiation is carried out to the packet measuring point data of acquisition, redundancy detection, correlation detection etc. one
Series data detection method, is stored in relational database by Data Detection result and data is rejected, occur when corresponding power plant
When data are bigger than normal, less than normal or completely disengaged from actual conditions, the data progress pair according to actual conditions to this period
The data answered are deleted so that the data of statistics are in a rational scope；
S3, the real-time flue gas data to acquisition are calculated in real time, obtain the desired value of denitration, desulfurization and dedusting etc.；
S4, to obtain desired value enter line overrun calculate, the desired value for alarm is pointed out with color and sound, and energy
Between at the beginning of to real-time measuring point and performance indications alarm, end time, the information that transfinites such as number of times of alarm records；
S5, according to the operating mode of division desired value is counted, and the result of statistics is preserved；
S6, according to the operating mode of division warning information is counted, and the result of statistics is preserved；
S7, the actual value (data that S5 and S6 are counted) and a reference value for comparing statistics, according to the code of points pair of reading
The environmental-protecting performance (i.e. pollutant emission) of each fired power generating unit is scored, code of points be quantitative analysis and qualitative analysis, it is qualitative
Analysis is the requirement whether fume emission data meet environment protection emission, on the basis of discharge is qualified, carries out quantitative evaluation point
Analysis, brake specific exhaust emission limits value it is low obtain it is more scoring it is higher；
S8, according to the ordering rule of reading the power generation dispatching of fired power generating unit is ranked up, ordering rule is that score is higher,
More give priority in arranging for power generation dispatching；
S9, the result that power generation dispatching sorts preserved, terminated.
Based on same inventive concept, the present invention also provides a kind of evaluation system of fired power generating unit environmental-protecting performance, with reference to
Accompanying drawing is described in detail to embodiments of systems of the invention.
As shown in figure 4, a kind of evaluation system of fired power generating unit environmental-protecting performance, including：
Flue gas data acquisition module 110, the flue gas data for obtaining each fired power generating unit, wherein the flue gas packet
Include the flue gas data of the flue gas data of desulfurizer, the flue gas data of denitrification apparatus and dust arrester；
Desired value obtains module 120, the desired value of the flue gas data for calculating each fired power generating unit, wherein the index
Value includes desulfurization desired value, denitration desired value and dedusting desired value；
Warning information obtains module 130, for each desired value to be compared with corresponding preset limit respectively, if
Desired value exceedes corresponding preset limit, and using correspondence desired value as alarm parameter, and it is corresponding to obtain the alarm parameter
Warning information, wherein the warning information includes the duration of alarm and the number of times of alarm；
Statistical module 140, for being united respectively to each desired value and warning information according to the operating mode divided in advance
Meter is calculated, and the Gas Parameters statistical value of each fired power generating unit to be evaluated is obtained according to statistics result of calculation；
Environmental-protecting performance evaluation module 150, for by the Gas Parameters statistical value of each fired power generating unit with setting meet ring
The a reference value for protecting emission request is compared, and the environmental-protecting performance of each fired power generating unit is determined according to comparative result, wherein each fire
The environmental-protecting performance of group of motors is used for the foundation sorted as each fired power generating unit in energy-conserving and environment-protective power generation dispatching.
In one embodiment, whether the Gas Parameters of each fired power generating unit of the detection of environmental-protecting performance evaluation module 150
Less than a reference value；If being less than, judge that the environmental-protecting performance of corresponding fired power generating unit is qualified；If being not less than, corresponding fire is judged
The environmental-protecting performance of group of motors is unqualified.
In one embodiment, the environmental-protecting performance evaluation module 150 is judging the environmental-protecting performance of corresponding fired power generating unit
After qualified, the Gas Parameters statistical value of the fired power generating unit and the difference of a reference value are also calculated, is obtained according to the difference
Go out the scoring of the environmental-protecting performance of each fired power generating unit, the size of the height of the scoring and the difference is proportional relationship.
In one embodiment, the flue gas data acquisition module 110 by integral collecting device from each thermal motor
The devices such as desulfurizer, denitrification apparatus and the dust arrester of group collection flue gas data.
In one embodiment, the evaluation system of fired power generating unit environmental-protecting performance also includes being connected to the flue gas data acquisition
Module 110 and the desired value obtain the data cleansing between module 120 and reject module 160, the data cleansing and rejecting
The flue gas data of each fired power generating unit of 160 pairs of module acquisition are cleaned, and by each flue gas data after cleaning respectively with
Corresponding setting range is compared, if not in setting range, corresponding flue gas data are rejected.
The other technical characteristics of evaluation system of above-mentioned fired power generating unit environmental-protecting performance and commenting for above-mentioned fired power generating unit environmental-protecting performance
The technical characteristic of valency method is identical, will not be described here.
The evaluation method and system of above-mentioned fired power generating unit environmental-protecting performance, when being compared to each other with prior art, possess following excellent
Point：
1st, integrated data acquisition, the flue gas data acquisition of desulphurization and denitration, dust pelletizing system is transmitted to grid company；
Unified data analysis, intensive data display and application, changes current collection, calculates the present situation that analysis is handled respectively, subtract
Few repeated construction；
2nd, qualitative and quantitative analysis is carried out to coal steam-electric plant smoke parameter, while analysis result is applied to power generation dispatching,
Power generation dispatching is given priority in arranging for low emission unit, reduces the pollutant emission of thermal power plant,
3rd, by monitoring coal steam-electric plant smoke parameter and being analyzed, cacao chocolate tree day-mark bar excites power plant to excavate itself ultralow row
The potentiality put.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
Completed by the related hardware of computer program instructions, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of evaluation method of fired power generating unit environmental-protecting performance, it is characterised in that including step：
The flue gas data of each fired power generating unit are obtained, wherein the flue gas data include the flue gas data of desulfurizer, denitration dress
The flue gas data and the flue gas data of dust arrester put；
The desired value of the flue gas data of each fired power generating unit is calculated, wherein the desired value includes desulfurization desired value, denitration index
Value and dedusting desired value；
Each desired value is compared with corresponding preset limit respectively, if desired value exceedes corresponding preset limit,
By correspondence desired value as alarm parameter, and the corresponding warning information of the alarm parameter is obtained, wherein the warning information bag
Include the duration of alarm and the number of times of alarm；
Statistics calculating is carried out to each desired value and warning information respectively according to the operating mode divided in advance, knot is calculated according to statistics
Fruit obtains the Gas Parameters statistical value of each fired power generating unit to be evaluated；
The Gas Parameters statistical value of each fired power generating unit and a reference value for meeting environment protection emission requirement of setting are compared, root
The environmental-protecting performance of each fired power generating unit is determined according to comparative result, the wherein environmental-protecting performance of each fired power generating unit is used to be used as energy-saving ring
Protect the foundation that each fired power generating unit sorts in power generation dispatching.
2. the evaluation method of fired power generating unit environmental-protecting performance according to claim 1, it is characterised in that by each fired power generating unit
Gas Parameters statistical value and a reference value of environment protection emission requirement of meeting of setting be compared, each is determined according to comparative result
The environmental-protecting performance of fired power generating unit includes：
Detect whether the Gas Parameters of each fired power generating unit are less than a reference value；
If being less than, judge that the environmental-protecting performance of corresponding fired power generating unit is qualified；If being not less than, the environmental protection of corresponding fired power generating unit is judged
Performance is unqualified.
3. the evaluation method of fired power generating unit environmental-protecting performance according to claim 2, it is characterised in that judging corresponding fire
After the environmental-protecting performance of group of motors is qualified, in addition to：
The Gas Parameters statistical value of the fired power generating unit and the difference of a reference value are calculated, each fire is drawn according to the difference
The size of the scoring of the environmental-protecting performance of group of motors, the height of the scoring and the difference is proportional relationship.
4. the evaluation method of fired power generating unit environmental-protecting performance according to claim 2, it is characterised in that obtain each thermal motor
The flue gas data of group include：
Flue gas number is gathered from the desulfurizer, denitrification apparatus and dust arrester of each fired power generating unit by integral collecting device
According to.
5. the evaluation method of the fired power generating unit environmental-protecting performance according to Claims 1-4 any one, it is characterised in that obtain
After taking the flue gas data of each fired power generating unit, before the desired value of flue gas data for calculating each fired power generating unit, in addition to：
Flue gas data to each fired power generating unit of acquisition are cleaned, and by each flue gas data after cleaning respectively with it is corresponding
Setting range be compared, if not in setting range, by corresponding flue gas data reject.
6. the evaluation method of fired power generating unit environmental-protecting performance according to claim 5, it is characterised in that to each fire of acquisition
The flue gas data of group of motors, which carry out cleaning, to be included：
Flue gas data to each fired power generating unit of acquisition carry out steady working condition differentiation, redundancy detection and correlation detection.
7. the evaluation method of the fired power generating unit environmental-protecting performance according to Claims 1-4 any one, it is characterised in that press
Before statistics calculating being carried out to each desired value and warning information respectively according to the operating mode divided in advance, in addition to：
Operating mode division is carried out to the historical data produced during thermal power unit operation using clustering algorithm.
8. a kind of evaluation system of fired power generating unit environmental-protecting performance, it is characterised in that including：
Flue gas data acquisition module, the flue gas data for obtaining each fired power generating unit, wherein the flue gas data include desulfurization
The flue gas data of the flue gas data of device, the flue gas data of denitrification apparatus and dust arrester；
Desired value obtains module, the desired value of the flue gas data for calculating each fired power generating unit, wherein the desired value includes
Desulfurization desired value, denitration desired value and dedusting desired value；
Warning information obtains module, for each desired value to be compared with corresponding preset limit respectively, if desired value
More than corresponding preset limit, using correspondence desired value as alarm parameter, and the corresponding alarm letter of the alarm parameter is obtained
Breath, wherein the warning information includes the duration of alarm and the number of times of alarm；
Statistical module, for carrying out statistics calculating to each desired value and warning information respectively according to the operating mode divided in advance,
The Gas Parameters statistical value of each fired power generating unit to be evaluated is obtained according to statistics result of calculation；
Environmental-protecting performance evaluation module, for the Gas Parameters statistical value of each fired power generating unit and the environment protection emission that meets of setting to be wanted
The a reference value asked is compared, determine the environmental-protecting performance of each fired power generating unit according to comparative result, wherein each fired power generating unit
Environmental-protecting performance is used for the foundation sorted as each fired power generating unit in energy-conserving and environment-protective power generation dispatching.
9. the evaluation system of fired power generating unit environmental-protecting performance according to claim 8, it is characterised in that
The environmental-protecting performance evaluation module detects whether the Gas Parameters of each fired power generating unit are less than a reference value；If being less than,
Judge that the environmental-protecting performance of corresponding fired power generating unit is qualified；If being not less than, judge the environmental-protecting performance of corresponding fired power generating unit not conforming to
Lattice；
And/or,
The environmental-protecting performance evaluation module also calculates the thermoelectricity after the environmental-protecting performance for judging corresponding fired power generating unit is qualified
The Gas Parameters statistical value of unit and the difference of a reference value, the environmental-protecting performance of each fired power generating unit is drawn according to the difference
Scoring, the size of the height of the scoring and the difference is proportional relationship.
10. the evaluation system of fired power generating unit environmental-protecting performance according to claim 8 or claim 9, it is characterised in that the flue gas number
Cigarette is gathered from the desulfurizer, denitrification apparatus and dust arrester of each fired power generating unit by integral collecting device according to acquisition module
Destiny evidence.
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