CN113946789B  Method for calculating garbage incineration amount of fourfurnace threemachine garbage incineration power plant in real time  Google Patents
Method for calculating garbage incineration amount of fourfurnace threemachine garbage incineration power plant in real time Download PDFInfo
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 CN113946789B CN113946789B CN202111365107.2A CN202111365107A CN113946789B CN 113946789 B CN113946789 B CN 113946789B CN 202111365107 A CN202111365107 A CN 202111365107A CN 113946789 B CN113946789 B CN 113946789B
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 238000012795 verification Methods 0.000 claims description 9
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 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
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Abstract
The invention discloses a method for calculating the garbage incineration amount of a fourfurnace threemachine garbage incineration power plant in real time, which takes the current t moment as a reference, starts the realtime calculation of the wholeplant realtime garbage incineration amount, collects design data and historical data, determines operation condition parameters, realtime calculation parameters and check calculation parameters, acquires data from a realtime database, sequentially judges whether an incinerator, a waste heat boiler and a turbine generator are in steadystate operation, comprehensively judges whether the fourfurnace threemachine is in steadystate operation, performs data filtering processing on the realtime data of the calculation parameters, calculates the wholeplant realtime garbage incineration amount by using the effective data after the filtering processing, performs data check on the wholeplant realtime garbage incineration amount by using the check calculation parameters, calculates the realtime garbage incineration amount of each incinerator in steadystate operation condition by using the check qualified wholeplant realtime garbage incineration amount, and finally writes calculation results into the realtime database and ends the calculation of the wholeplant, and enters the next round of realtime calculation.
Description
Technical Field
The invention belongs to the technical field of power industry, and particularly relates to a method for calculating the garbage incineration amount of a fourfurnace threemachine garbage incineration power plant in real time.
Background
The main fuel of the fourfurnace threemachine large garbage incineration power plant is household garbage, garbage in a bin is lifted to a feeding hopper through a garbage grab bucket, is continuously fed to a fire grate inlet through a feeding groove, and finally enters an incinerator for combustion. The incineration garbage can be metered and weighed by the garbage grab weighing and metering device before entering the furnace, the existing metering and weighing is to accumulate the garbage incineration amount, but an online calculation method of the realtime garbage incineration amount is not reported.
The realtime garbage incineration amount not only can assist in calculating other energy consumption indexes, but also can help the energysaving professional technicians of enterprises to know the actual running condition of the incinerator to perform transverse comparison, so that the realtime calculation of the garbage incineration amount of the fourincinerator threemachine large garbage incineration power plant is very important. The fourfurnace threemachine adopts a unique arrangement mode of 'four mechanical grate furnace type garbage incinerator + four waste heat boilers + three steam turbine generator units', main steam which is used for transmitting heat to the four waste heat boilers by burning garbage in the four incinerators is then collected to a main steam main pipe for the three steam turbine generator units to generate power, so that the realtime garbage incineration amount is calculated relatively accurately by analyzing the historical relationship between the generated energy of the three steam turbine generators and the garbage incineration amount of the four incinerators.
Disclosure of Invention
In order to overcome the technical problems, the invention provides a method for calculating the garbage incineration amount of the fourfurnace threemachine garbage incineration power plant in real time, which is convenient for technicians to know the realtime garbage incineration treatment conditions of three incinerators in real time.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a method for calculating the garbage incineration amount of a fourfurnace threemachine garbage incineration power plant in real time comprises the following steps of;
1) Start the realtime calculation of the present round
Defining the current time t as a reference time, and starting the realtime calculation of the round;
2) Collecting design data and historical data
Collecting design data and historical data for a fourfurnace threemachine garbage incineration power plant;
3) Determining operating condition parameters, realtime calculation parameters and verification calculation parameters
Dividing the realtime parameters into three types, namely operation condition parameters, realtime calculation parameters and check calculation parameters, wherein the operation condition parameters are used for judging whether the incinerator, the waste heat boiler and the steam turbine generator are in steadystate operation, the realtime calculation parameters are used for calculating the realtime waste incineration amount, the check calculation parameters are used for checking the calculated realtime waste incineration amount, and the realtime data of all the realtime parameters are obtained from a realtime database;
4) Judging whether the incinerator is in steady state operation
Acquiring the operating condition parameters of the incinerator in the step 2) from a realtime database at t _{History} Historical data over time (where t _{History} Defined as time period t6 mint1 s) and three incinerator boundary conditions:
incinerator boundary condition one: incinerator operation state S _{FM} Is 1 in all;
incinerator boundary condition two: primary air flow rate F of fire grate _{FM} The historical data of the data are all more than 5000Nm3/h, and the fluctuation range of the data is not more than +/50% of the arithmetic mean value of the historical data;
incinerator boundary conditions three: incinerator hearth temperature T _{IM} The historical data of the data are all more than 750 ℃, and the fluctuation range of the data is not more than +/20% of the arithmetic mean value of the historical data;
when the three boundary conditions of the No. M incinerator are met simultaneously, the incinerator is considered to be in steadystate operation, and if at least one incinerator is in steadystate operation, the whole incinerator is considered to be in steadystate operation, and the next calculation can be continued; otherwise, considering the whole incinerator to be in unsteady state operation, skipping the calculation at the current t moment, and entering the next round of calculation;
5) Judging whether the waste heat boiler is in steady state operation
Acquiring the operation condition parameters of the waste heat boiler in the step 2) from a realtime database at t _{History} Historical data over time (where t _{History} Defining a time period of t6 mint1 s), and defining three boundary conditions of the waste heat boiler:
boundary condition one of waste heat boiler: waste heat potMiddle layer temperature T of first vertical flue of furnace _{BM} The historical data of the data are all more than 700 ℃, and the fluctuation range of the data is not more than +/50% of the arithmetic mean value of the historical data;
boundary condition II of waste heat boiler: valve opening VO of main steam electric door of waste heat boiler _{B} _{M} Is greater than 5% and the data fluctuation range is not more than + 20% of the arithmetic mean of the historical data;
boundary conditions of the waste heat boiler are as follows: economizer inlet feedwater pressure P _{BM} The historical data of the data are all more than 3.0MPa, and the data fluctuation range is not more than +/50% of the arithmetic mean value of the historical data;
when the three boundary conditions of the No. M waste heat boiler are simultaneously met and the corresponding incinerator is in steady state operation according to the step 4), the No. M waste heat boiler is considered to be in steady state operation, and if at least one waste heat boiler and the corresponding incinerator are in steady state operation, the whole waste heat boiler is considered to be in steady state operation, the calculation of the next step can be continued; otherwise, the whole waste heat boiler is considered to be in unsteady state operation, calculation at the current time t is skipped, and the next round of calculation is carried out;
6) Judging whether the turbo generator is in steady state operation
Acquiring the operation condition parameters of the turbonator in the step 2) from a realtime database at t _{History} Historical data over time (where t _{History} Defined as time period t6 mint1 s), and three turbo generator boundary conditions are defined:
turbo generator boundary condition one: steam turbine operating state S _{TN} Is 1 in all;
turbo generator boundary condition two: front temperature T of main valve _{TN} All historical data of the data are more than 350 ℃, and the fluctuation range of the data is not more than +/20% of the arithmetic mean value of the historical data;
turbo generator boundary conditions three: main valve front pressure P _{TN} The historical data of the data are all more than 3.0MPa, and the data fluctuation range is not more than +/50% of the arithmetic mean value of the historical data;
when the three boundary conditions of the No. N turbogenerator are met simultaneously, the No. N turbogenerator is considered to be in steadystate operation, and if at least one turbogenerator is in steadystate operation, the whole turbogenerator is considered to be in steadystate operation, and then the next calculation can be continued; otherwise, the turbo generator is considered to be in unsteady state operation, calculation at the current t moment is skipped, and the next round of calculation is carried out;
7) Comprehensively judging whether the fourfurnace threemachine is in steadystate operation
If the incinerator, the waste heat boiler and the turbo generator are judged to be in steadystate operation according to the steps 4), 5) and 6), the fourfurnace threemachine is considered to be in steadystate operation, and the next step of calculation can be continued; otherwise, the fourfurnace three machine is considered to be in unsteady state operation, calculation at the current t moment is skipped, and the next round of calculation is started;
8) Realtime computing parameter data filtering
If the fourfurnace threemachine is judged to be in steadystate operation according to the step 7), acquiring realtime data X (t) of the realtime calculation parameters in the step 2) at the current t moment from a realtime database, and cleaning the data according to the formula (1):
in the formula (1), X _{i} Calculating parameters at t for real time _{History} Any data in the time period, m is the parameter at t _{History} Statistics of data over a period of time;
the realtime data X (t) meets the formula (1), and is considered to be reliable data, and the next calculation is continued; otherwise, the data is considered to be unreliable data, does not participate in the realtime calculation of the round, and enters the next round of calculation;
9) Calculating realtime garbage incineration amount of whole factory
If the fourfurnace threemachine is judged to be in steadystate operation according to the step 7), and when the realtime calculation parameter generator active power of at least one turbo generator at the current time t is determined to be reliable data according to the step 8), the realtime garbage incineration amount LJ of the whole plant at the current time t is calculated according to the step (2) _{Plant} (t)：
In the formula (2), M is an incinerator or a waste heat boiler, the values are 1, 2, 3 and 4, N is a steam turbine generator, and the values are 1, 2 and 3;
10 Check realtime garbage incineration amount of whole factory
According to step 7), judging that the fourfurnace threemachine is in steadystate operation, acquiring three historical data of which the value is not repeated before the current t moment of the check calculation parameter accumulated burning quantity of the 4 incinerators determined in step 2) from a realtime database, and calculating realtime garbage burning quantity check data LJ of the whole plant according to the step (3) ^{Check1} (t)：
In the formula (3), t _{3} 、t _{2} 、t _{1} Respectively representing the historical moments corresponding to three pieces of historical data, wherein the numerical values of the historical moments are not repeated before the current t moment;
calculating realtime garbage incineration amount verification data LJ of the whole factory according to the step (4) ^{Check2} (t)：
Then, data verification is carried out on the realtime garbage incineration amount of the whole factory according to the following steps:
calculating realtime garbage incineration amount of the whole factory and simultaneously meeting (5.1) and (5.2) in the formula (5), checking to be qualified, and continuing the realtime calculation of the round; if the calculated realtime garbage incineration amount of the whole factory does not meet the formula (5), checking to be unqualified, outputting no result, terminating the calculation of the round, and entering the next round of calculation;
11 Calculating the realtime garbage incineration amount of each incinerator
According to the step 4) and the step 5), the boundary condition of the No. M incinerator and the boundary condition of the No. M waste heat boiler are simultaneously met, and the No. M incinerator and the waste heat boiler are judged to be in steadystate operation;
determining the main steam flow SF of the No. M waste heat boiler main steam flow waste heat boiler at the current t moment according to the step 2) _{BM} If the data is reliable, calculating the realtime garbage incineration amount LJ of the No. M incinerator according to the step (6) _{FM} (t)：
Finally, calculating to obtain the realtime garbage incineration amount of each steadystate operation incinerator;
12 Data writing into realtime database, and ending the realtime calculation of the round
Finally, writing the realtime garbage incineration amount of the qualified whole factory and the realtime garbage incineration amount of each steadystate operation incinerator calculated in the step 11) into a realtime database, ending the realtime calculation of the round, and entering the next round of calculation (t+1s moment);
the collected design data and historical data collected in step 2) are shown in the following table:
the fourfurnace threemachine operation condition parameters, the realtime calculation parameters and the verification calculation parameters determined in the step 3) are respectively shown as follows;
the operation condition parameters, symbols, units and attributions of the fourfurnace threemachine are shown in the following table;
realtime calculation parameters, symbols, units and attributions of the fourfurnace threemachine are shown in the following table;
the verification and calculation parameters, symbols, units and attributions of the fourfurnace threemachine are shown in the following table;
parameter name  Parameter symbol  Parameter unit  Parameter attribution 
Incinerator operation state  S _{FM}  0/1  Incinerator with a heat exchanger 
Accumulated garbage disposal  LJ _{FM}  t  Incinerator with a heat exchanger 
The invention has the beneficial effects that:
the invention provides an online method for realtime calculation of the garbage incineration amount of the fourfurnace threemachine household garbage incineration power plant, can calculate the realtime garbage incineration amount of each incinerator more accurately, and has guiding significance for online comparison analysis of energy consumption indexes.
Drawings
FIG. 1 is a schematic diagram of the realtime computing process of the present invention.
Fig. 2 is a schematic diagram of a realtime garbage incineration curve according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples.
1) Start the realtime calculation of the present round
And defining the current time t as a reference time, and starting the realtime calculation of the round.
2) Collecting design data and historical data
For a fourfurnace threemachine garbage incineration power plant, collecting design data and historical data, and summarizing the design data and the historical data as shown in the following table:
for the fourfurnace threemachine of the scheme, the values of the M mark incinerator or waste heat boiler are 1, 2, 3 and 4, the values of the N mark steam turbine generator are 1, 2 and 3, and the scheme is the same as the following.
3) Determining operating condition parameters, realtime calculation parameters and verification calculation parameters
The realtime parameters are divided into three types, namely operation condition parameters, realtime calculation parameters and check calculation parameters, wherein the operation condition parameters are used for judging whether the incinerator, the waste heat boiler and the steam turbine generator are in steadystate operation, the realtime calculation parameters are used for calculating the realtime garbage incineration amount, and the check calculation parameters are used for checking the calculated realtime garbage incineration amount. The realtime data of all the realtime parameters are obtained from the realtime database.
The operating condition parameters, symbols, units and attributions of the fourfurnace threemachine are shown in the following table.
The realtime calculation parameters, symbols, units and attributions of the fourfurnace threemachine are shown in the following table.
Parameter name  Parameter symbol  Parameter unit  Parameter attribution 
Incinerator operation state  S _{FM}  0/1  Incinerator with a heat exchanger 
Main steam flow of waste heat boiler  SF _{BM}  t/h  Waste heat boiler 
Active power  E _{GN}  Megawatts  Steam turbine generator 
The check calculation parameters, symbols, units and attributions of the fourfurnace threemachine are shown in the following table.
Parameter name  Parameter symbol  Parameter unit  Parameter attribution 
Incinerator operation state  S _{FM}  0/1  Incinerator with a heat exchanger 
Accumulated garbage disposal  LJ _{FM}  t  Incinerator with a heat exchanger 
4) Judging whether the incinerator is in steady state operation
Acquiring the operating condition parameters of the incinerator in the step 2) from a realtime database at t _{History} Historical data over time (where t _{History} Defined as a time period of t6min to t1 s), and three incinerators are definedFurnace boundary conditions:
incinerator boundary condition one: incinerator operation state S _{FM} Is 1 in all;
incinerator boundary condition two: primary air flow rate F of fire grate _{FM} The historical data of the data are all more than 5000Nm3/h, and the fluctuation range of the data is not more than +/50% of the arithmetic mean value of the historical data;
incinerator boundary conditions three: incinerator hearth temperature I _{FM} Is greater than 750 ℃ and the range of data fluctuation is no more than + 20% of the arithmetic mean of the historical data.
When the above three boundary conditions of the No. M incinerator are satisfied at the same time, the incinerator is considered to be in steadystate operation. If at least one incinerator is in steady state operation, namely the whole incinerator is considered to be in steady state operation, the next step of calculation can be continued; otherwise, the whole incinerator is considered to be in unsteady state operation, calculation at the current t moment is skipped, and the next round of calculation is started.
5) Judging whether the waste heat boiler is in steady state operation
Acquiring the operation condition parameters of the waste heat boiler in the step 2) from a realtime database at t _{History} Historical data over time (where t _{History} Defining a time period of t6 mint1 s), and defining three boundary conditions of the waste heat boiler:
boundary condition one of waste heat boiler: middle layer temperature T of first vertical flue of waste heat boiler _{BM} The historical data of the data are all more than 700 ℃, and the fluctuation range of the data is not more than +/50% of the arithmetic mean value of the historical data;
boundary condition II of waste heat boiler: valve opening VO of main steam electric door of waste heat boiler _{B} _{M} Is greater than 5% and the data fluctuation range is not more than + 20% of the arithmetic mean of the historical data;
boundary conditions of the waste heat boiler are as follows: economizer inlet feedwater pressure P _{BM} Is greater than 3.0MPa, and the data fluctuation range is not more than + 50% of the arithmetic mean of the historical data.
And when the three boundary conditions of the No. M waste heat boiler are simultaneously met and the corresponding incinerator is in steadystate operation according to the step 4), the No. M waste heat boiler is considered to be in steadystate operation. If at least one waste heat boiler and the corresponding incinerator are in steady state operation, namely the whole waste heat boiler is considered to be in steady state operation, the calculation of the next step can be continued; otherwise, the whole waste heat boiler is considered to be in unsteady state operation, calculation at the current time t is skipped, and the next round of calculation is started.
6) Judging whether the turbo generator is in steady state operation
Acquiring the operation condition parameters of the turbonator in the step 2) from a realtime database at t _{History} Historical data over time (where t _{History} Defined as time period t6 mint1 s), and three turbo generator boundary conditions are defined:
turbo generator boundary condition one: steam turbine operating state S _{TN} Is 1 in all;
turbo generator boundary condition two: front temperature T of main valve _{TN} All historical data of the data are more than 350 ℃, and the fluctuation range of the data is not more than +/20% of the arithmetic mean value of the historical data;
turbo generator boundary conditions three: main valve front pressure P _{TN} Is greater than 3.0MPa, and the data fluctuation range is not more than + 50% of the arithmetic mean of the historical data.
And when the three boundary conditions of the No. N turbonator are simultaneously met, the No. N turbonator is considered to be in steadystate operation. If at least one turbo generator is in steady state operation, namely the whole turbo generator is considered to be in steady state operation, the next step of calculation can be continued; otherwise, the turbo generator is considered to be in unsteady state operation, calculation at the current t moment is skipped, and the next round of calculation is carried out.
7) Comprehensively judging whether the fourfurnace threemachine is in steadystate operation
If the incinerator, the waste heat boiler and the turbo generator are judged to be in steadystate operation according to the steps 4), 5) and 6), the fourfurnace threemachine is considered to be in steadystate operation, and the next step of calculation can be continued; otherwise, the fourfurnace three machine is considered to be in unsteady state operation, calculation at the current t moment is skipped, and the next round of calculation is started.
8) Realtime computing parameter data filtering
If the fourfurnace threemachine is judged to be in steadystate operation according to the step 7), acquiring realtime data X (t) of the realtime calculation parameters in the step 2) at the current t moment from a realtime database, and cleaning the data according to the formula (1):
in the formula (1), X _{i} Calculating parameters at t for real time _{History} Any data in the time period, m is the parameter at t _{History} Statistics of data over a period of time.
The realtime data X (t) meets the formula (1), and is considered to be reliable data, and the next calculation is continued; otherwise, the data is considered to be unreliable data, does not participate in the realtime calculation of the round, and enters the next round of calculation.
9) Calculating realtime garbage incineration amount of whole factory
If the fourfurnace threemachine is judged to be in steadystate operation according to the step 7), and when the realtime calculation parameter active power of at least one turbo generator at the current time t is determined to be reliable data according to the step 8), the realtime garbage incineration amount LJ of the whole plant at the current time t is calculated according to the step (2) _{Plant} (t)：
In the formula (2), M is an incinerator or a waste heat boiler, the values are 1, 2, 3 and 4, N is a steam turbine generator, and the values are 1, 2 and 3. Wherein, the first day of month is calculated by the formula (2.1), and the rest time is calculated by the formula (2.2).
10 Check realtime garbage incineration amount of whole factory
According toStep 7), judging that the fourfurnace threemachine is in steadystate operation, acquiring three historical data of which the value is not repeated before the current t moment of the check calculation parameter accumulated burning quantity of the 4 incinerators determined in the step 2) from a realtime database, and calculating realtime garbage burning quantity check data LJ of the whole plant according to the step (3) ^{Check1} (t)：
In the formula (3), t _{3} 、t _{2} 、t _{1} And respectively representing the historical moments corresponding to the three pieces of historical data, wherein the numerical values of the historical moments are not repeated before the current t moment.
Calculating realtime garbage incineration amount verification data LJ of the whole factory according to the step (4) ^{Check2} (t)：
Then, data verification is carried out on the realtime garbage incineration amount of the whole factory according to the following steps:
calculating realtime garbage incineration amount of the whole factory and simultaneously meeting (5.1) and (5.2) in the formula (5), checking to be qualified, and continuing the realtime calculation of the round; if the realtime garbage incineration amount of the whole factory is calculated and does not meet the formula (5), checking is failed, outputting no result, stopping the calculation of the round, and entering the next round of calculation.
11 Calculating the realtime garbage incineration amount of each incinerator
According to the step 4) and the step 5), the boundary condition of the No. M incinerator and the boundary condition of the No. M waste heat boiler are simultaneously met, and then the No. M incinerator and the waste heat boiler are judged to be in steadystate operation.
Determining the main steam flow SF of the No. M waste heat boiler main steam flow waste heat boiler at the current t moment according to the step 8) _{BM} In case of reliable data, then pressCalculating the realtime garbage incineration amount LJ of the No. M incinerator according to the method (6) _{FM} (t)：
Finally, the garbage incineration amount of each steadystate operation incinerator is calculated in real time.
12 Data writing into realtime database, and ending the realtime calculation of the round
And finally, writing the realtime garbage incineration amount of the qualified whole factory and the realtime garbage incineration amount of each steadystate operation incinerator calculated in the step 11) into a realtime database, ending the realtime calculation of the round, and entering the next round of calculation (t+1s).
Claims (3)
1. The method for calculating the garbage incineration amount of the fourfurnace threemachine garbage incineration power plant in real time is characterized by comprising the following steps of;
1) Start the realtime calculation of the present round
Defining the current time t as a reference time, and starting the realtime calculation of the round;
2) Collecting design data and historical data
Collecting design data and historical data for a fourfurnace threemachine garbage incineration power plant;
3) Determining operating condition parameters, realtime calculation parameters and verification calculation parameters
Dividing the realtime parameters into three types, namely operation condition parameters, realtime calculation parameters and check calculation parameters, wherein the operation condition parameters are used for judging whether the incinerator, the waste heat boiler and the steam turbine generator are in steadystate operation, the realtime calculation parameters are used for calculating the realtime waste incineration amount, the check calculation parameters are used for checking the calculated realtime waste incineration amount, and the realtime data of all the realtime parameters are obtained from a realtime database;
4) Judging whether the incinerator is in steady state operation
Acquiring the operating condition parameters of the incinerator in the step 2) from a realtime database at t _{History} Historical data over time, where t _{History} Defined as a time periodt6 mint1 s, and defining three incinerator boundary conditions:
incinerator boundary condition one: incinerator operation state S _{FM} Is 1 in all;
incinerator boundary condition two: primary air flow rate F of fire grate _{FM} The historical data of the data are all more than 5000Nm3/h, and the fluctuation range of the data is not more than +/50% of the arithmetic mean value of the historical data;
incinerator boundary conditions three: incinerator hearth temperature I _{FM} The historical data of the data are all more than 750 ℃, and the fluctuation range of the data is not more than +/20% of the arithmetic mean value of the historical data;
when the three boundary conditions of the No. M incinerator are met simultaneously, the incinerator is considered to be in steadystate operation, and if at least one incinerator is in steadystate operation, the whole incinerator is considered to be in steadystate operation, and the next calculation can be continued; otherwise, considering the whole incinerator to be in unsteady state operation, skipping the calculation at the current t moment, and entering the next round of calculation;
5) Judging whether the waste heat boiler is in steady state operation
Acquiring the operation condition parameters of the waste heat boiler in the step 2) from a realtime database at t _{History} Historical data over time, where t _{History} The method is defined as a time period t6 mint1 s, and three waste heat boiler boundary conditions are defined:
boundary condition one of waste heat boiler: middle layer temperature T of first vertical flue of waste heat boiler _{BM} The historical data of the data are all more than 700 ℃, and the fluctuation range of the data is not more than +/50% of the arithmetic mean value of the historical data;
boundary condition II of waste heat boiler: valve opening VO of main steam electric door of waste heat boiler _{BM} Is greater than 5% and the data fluctuation range is not more than + 20% of the arithmetic mean of the historical data;
boundary conditions of the waste heat boiler are as follows: economizer inlet feedwater pressure P _{BM} The historical data of the data are all more than 3.0MPa, and the data fluctuation range is not more than +/50% of the arithmetic mean value of the historical data;
when the three boundary conditions of the No. M waste heat boiler are simultaneously met and the corresponding incinerator is in steady state operation according to the step 4), the No. M waste heat boiler is considered to be in steady state operation, and if at least one waste heat boiler and the corresponding incinerator are in steady state operation, the whole waste heat boiler is considered to be in steady state operation, the calculation of the next step can be continued; otherwise, the whole waste heat boiler is considered to be in unsteady state operation, calculation at the current time t is skipped, and the next round of calculation is carried out;
6) Judging whether the turbo generator is in steady state operation
Acquiring the operation condition parameters of the turbonator in the step 2) from a realtime database at t _{History} Historical data over time, where t _{History} Defining a time period of t6min to t1s, and defining three turbonator boundary conditions:
turbo generator boundary condition one: steam turbine operating state S _{TN} Is 1 in all;
turbo generator boundary condition two: front temperature T of main valve _{TN} All historical data of the data are more than 350 ℃, and the fluctuation range of the data is not more than +/20% of the arithmetic mean value of the historical data;
turbo generator boundary conditions three: main valve front pressure P _{TN} The historical data of the data are all more than 3.0MPa, and the data fluctuation range is not more than +/50% of the arithmetic mean value of the historical data;
when the three boundary conditions of the No. N turbogenerator are met simultaneously, the No. N turbogenerator is considered to be in steadystate operation, and if at least one turbogenerator is in steadystate operation, the whole turbogenerator is considered to be in steadystate operation, and then the next calculation can be continued; otherwise, the turbo generator is considered to be in unsteady state operation, calculation at the current t moment is skipped, and the next round of calculation is carried out;
7) Comprehensively judging whether the fourfurnace threemachine is in steadystate operation
If the incinerator, the waste heat boiler and the turbo generator are judged to be in steadystate operation according to the steps 4), 5) and 6), the fourfurnace threemachine is considered to be in steadystate operation, and the next step of calculation can be continued; otherwise, the fourfurnace three machine is considered to be in unsteady state operation, calculation at the current t moment is skipped, and the next round of calculation is started;
8) Realtime computing parameter data filtering
If the fourfurnace threemachine is judged to be in steadystate operation according to the step 7), acquiring realtime data X (t) of the realtime calculation parameters in the step 2) at the current t moment from a realtime database, and cleaning the data according to the formula (1):
in the formula (1), X _{i} Calculating parameters at t for real time _{History} Any data in the time period, m is the parameter at t _{History} Statistics of data over a period of time;
the realtime data X (t) meets the formula (1), and is considered to be reliable data, and the next calculation is continued; otherwise, the data is considered to be unreliable data, does not participate in the realtime calculation of the round, and enters the next round of calculation;
9) Calculating realtime garbage incineration amount of whole factory
If the fourfurnace threemachine is judged to be in steadystate operation according to the step 7), and when the realtime calculation parameter active power of at least one turbo generator at the current time t is determined to be reliable data according to the step 8), the realtime garbage incineration amount LJ of the whole plant at the current time t is calculated according to the step (2) _{Plant} (t)：
In the formula (2), M is an incinerator or a waste heat boiler, the values are 1, 2, 3 and 4, N is a steam turbine generator, and the values are 1, 2 and 3; wherein, the first day of month is calculated by the formula (2.1), and the rest time is calculated by the formula (2.2);
10 Check realtime garbage incineration amount of whole factory
According to the step 7), judging that the fourfurnace threemachine is in steadystate operation, and acquiring the check calculation parameters of the 4 incinerators determined in the step 2) from a realtime database, wherein the value of the accumulated incineration amount is not repeated before the current t momentCalculating realtime garbage incineration amount check data LJ of the whole plant according to the three historical data ^{Check1} (t)：
In the formula (3), t _{3} 、t _{2} 、t _{1} Respectively representing the historical moments corresponding to three pieces of historical data, wherein the numerical values of the historical moments are not repeated before the current t moment;
calculating realtime garbage incineration amount verification data LJ of the whole factory according to the step (4) ^{Check2} (t)：
Then, data verification is carried out on the realtime garbage incineration amount of the whole factory according to the following steps:
calculating realtime garbage incineration amount of the whole factory and simultaneously meeting (5.1) and (5.2) in the formula (5), checking to be qualified, and continuing the realtime calculation of the round; if the calculated realtime garbage incineration amount of the whole factory does not meet the formula (5), checking to be unqualified, outputting no result, terminating the calculation of the round, and entering the next round of calculation;
11 Calculating the realtime garbage incineration amount of each incinerator
According to the step 4) and the step 5), the boundary condition of the No. M incinerator and the boundary condition of the No. M waste heat boiler are simultaneously met, and the No. M incinerator and the waste heat boiler are judged to be in steadystate operation;
determining the main steam flow SF of the No. M waste heat boiler main steam flow waste heat boiler at the current t moment according to the step 2) _{BM} If the data is reliable, calculating the realtime garbage incineration amount LJ of the No. M incinerator according to the step (6) _{FM} (t)：
Finally, the garbage incineration amount of each steadystate operation incinerator is calculated in real time;
12 Data writing into realtime database, and ending the realtime calculation of the round
And finally, writing the realtime garbage incineration amount of the qualified whole factory and the realtime garbage incineration amount of each steadystate operation incinerator calculated in the step 11) into a realtime database, ending the realtime calculation of the round, and entering the next round of calculation, wherein the time is t+1s.
2. The method for calculating the garbage incineration amount of the fourfurnace threemachine garbage incineration power plant in real time according to claim 1, wherein the collected design data and the historical data collected in the step 2) are shown in the following table:
。
3. the method for calculating the garbage incineration amount of the fourfurnace threemachine garbage incineration power plant in real time according to claim 1, wherein the fourfurnace threemachine operation condition parameters, the realtime calculation parameters and the check calculation parameters determined in the step 3) are respectively shown as follows;
the operation condition parameters, symbols, units and attributions of the fourfurnace threemachine are shown in the following table;
realtime calculation parameters, symbols, units and attributions of the fourfurnace threemachine are shown in the following table;
The verification and calculation parameters, symbols, units and attributions of the fourfurnace threemachine are shown in the following table;
。
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JP2002106821A (en) *  20000929  20020410  Kawasaki Heavy Ind Ltd  Method and device for controlling combustion in refuse incineration plant 
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JP2002106821A (en) *  20000929  20020410  Kawasaki Heavy Ind Ltd  Method and device for controlling combustion in refuse incineration plant 
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