CN113946789B - Method for calculating garbage incineration amount of four-furnace three-machine garbage incineration power plant in real time - Google Patents
Method for calculating garbage incineration amount of four-furnace three-machine garbage incineration power plant in real time Download PDFInfo
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Abstract
The invention discloses a method for calculating the garbage incineration amount of a four-furnace three-machine garbage incineration power plant in real time, which takes the current t moment as a reference, starts the real-time calculation of the whole-plant real-time garbage incineration amount, collects design data and historical data, determines operation condition parameters, real-time calculation parameters and check calculation parameters, acquires data from a real-time database, sequentially judges whether an incinerator, a waste heat boiler and a turbine generator are in steady-state operation, comprehensively judges whether the four-furnace three-machine is in steady-state operation, performs data filtering processing on the real-time data of the calculation parameters, calculates the whole-plant real-time garbage incineration amount by using the effective data after the filtering processing, performs data check on the whole-plant real-time garbage incineration amount by using the check calculation parameters, calculates the real-time garbage incineration amount of each incinerator in steady-state operation condition by using the check qualified whole-plant real-time garbage incineration amount, and finally writes calculation results into the real-time database and ends the calculation of the whole-plant, and enters the next round of real-time 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 four-furnace three-machine garbage incineration power plant in real time.
Background
The main fuel of the four-furnace three-machine 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 real-time garbage incineration amount is not reported.
The real-time garbage incineration amount not only can assist in calculating other energy consumption indexes, but also can help the energy-saving professional technicians of enterprises to know the actual running condition of the incinerator to perform transverse comparison, so that the real-time calculation of the garbage incineration amount of the four-incinerator three-machine large garbage incineration power plant is very important. The four-furnace three-machine 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 real-time 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 four-furnace three-machine garbage incineration power plant in real time, which is convenient for technicians to know the real-time 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 four-furnace three-machine garbage incineration power plant in real time comprises the following steps of;
1) Start the real-time calculation of the present round
Defining the current time t as a reference time, and starting the real-time calculation of the round;
2) Collecting design data and historical data
Collecting design data and historical data for a four-furnace three-machine garbage incineration power plant;
3) Determining operating condition parameters, real-time calculation parameters and verification calculation parameters
Dividing the real-time parameters into three types, namely operation condition parameters, real-time 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 steady-state operation, the real-time calculation parameters are used for calculating the real-time waste incineration amount, the check calculation parameters are used for checking the calculated real-time waste incineration amount, and the real-time data of all the real-time parameters are obtained from a real-time 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 real-time database at t History Historical data over time (where t History Defined as time period t-6 min-t-1 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 steady-state operation, and if at least one incinerator is in steady-state operation, the whole incinerator is considered to be in steady-state 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 real-time database at t History Historical data over time (where t History Defining a time period of t-6 min-t-1 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 real-time database at t History Historical data over time (where t History Defined as time period t-6 min-t-1 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 turbo-generator are met simultaneously, the No. N turbo-generator is considered to be in steady-state operation, and if at least one turbo-generator is in steady-state operation, the whole turbo-generator is considered to be in steady-state 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 four-furnace three-machine is in steady-state operation
If the incinerator, the waste heat boiler and the turbo generator are judged to be in steady-state operation according to the steps 4), 5) and 6), the four-furnace three-machine is considered to be in steady-state operation, and the next step of calculation can be continued; otherwise, the four-furnace 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) Real-time computing parameter data filtering
If the four-furnace three-machine is judged to be in steady-state operation according to the step 7), acquiring real-time data X (t) of the real-time calculation parameters in the step 2) at the current t moment from a real-time 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 real-time 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 real-time calculation of the round, and enters the next round of calculation;
9) Calculating real-time garbage incineration amount of whole factory
If the four-furnace three-machine is judged to be in steady-state operation according to the step 7), and when the real-time 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 real-time 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 real-time garbage incineration amount of whole factory
According to step 7), judging that the four-furnace three-machine is in steady-state 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 real-time database, and calculating real-time 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 real-time 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 real-time garbage incineration amount of the whole factory according to the following steps:
calculating real-time 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 real-time calculation of the round; if the calculated real-time 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 real-time 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 steady-state 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 real-time garbage incineration amount LJ of the No. M incinerator according to the step (6) FM (t)：
Finally, calculating to obtain the real-time garbage incineration amount of each steady-state operation incinerator;
12 Data writing into real-time database, and ending the real-time calculation of the round
Finally, writing the real-time garbage incineration amount of the qualified whole factory and the real-time garbage incineration amount of each steady-state operation incinerator calculated in the step 11) into a real-time database, ending the real-time 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 four-furnace three-machine operation condition parameters, the real-time 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 four-furnace three-machine are shown in the following table;
real-time calculation parameters, symbols, units and attributions of the four-furnace three-machine are shown in the following table;
the verification and calculation parameters, symbols, units and attributions of the four-furnace three-machine 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 real-time calculation of the garbage incineration amount of the four-furnace three-machine household garbage incineration power plant, can calculate the real-time 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 real-time computing process of the present invention.
Fig. 2 is a schematic diagram of a real-time 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 real-time calculation of the present round
And defining the current time t as a reference time, and starting the real-time calculation of the round.
2) Collecting design data and historical data
For a four-furnace three-machine 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 four-furnace three-machine 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, real-time calculation parameters and verification calculation parameters
The real-time parameters are divided into three types, namely operation condition parameters, real-time 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 steady-state operation, the real-time calculation parameters are used for calculating the real-time garbage incineration amount, and the check calculation parameters are used for checking the calculated real-time garbage incineration amount. The real-time data of all the real-time parameters are obtained from the real-time database.
The operating condition parameters, symbols, units and attributions of the four-furnace three-machine are shown in the following table.
The real-time calculation parameters, symbols, units and attributions of the four-furnace three-machine 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 four-furnace three-machine 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 real-time database at t History Historical data over time (where t History Defined as a time period of t-6min to t-1 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 steady-state 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 real-time database at t History Historical data over time (where t History Defining a time period of t-6 min-t-1 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 steady-state operation according to the step 4), the No. M waste heat boiler is considered to be in steady-state 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 real-time database at t History Historical data over time (where t History Defined as time period t-6 min-t-1 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 steady-state 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 four-furnace three-machine is in steady-state operation
If the incinerator, the waste heat boiler and the turbo generator are judged to be in steady-state operation according to the steps 4), 5) and 6), the four-furnace three-machine is considered to be in steady-state operation, and the next step of calculation can be continued; otherwise, the four-furnace 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) Real-time computing parameter data filtering
If the four-furnace three-machine is judged to be in steady-state operation according to the step 7), acquiring real-time data X (t) of the real-time calculation parameters in the step 2) at the current t moment from a real-time 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 real-time 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 real-time calculation of the round, and enters the next round of calculation.
9) Calculating real-time garbage incineration amount of whole factory
If the four-furnace three-machine is judged to be in steady-state operation according to the step 7), and when the real-time 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 real-time 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 real-time garbage incineration amount of whole factory
According toStep 7), judging that the four-furnace three-machine is in steady-state 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 real-time database, and calculating real-time 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 real-time 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 real-time garbage incineration amount of the whole factory according to the following steps:
calculating real-time 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 real-time calculation of the round; if the real-time 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 real-time 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 steady-state 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 real-time garbage incineration amount LJ of the No. M incinerator according to the method (6) FM (t)：
Finally, the garbage incineration amount of each steady-state operation incinerator is calculated in real time.
12 Data writing into real-time database, and ending the real-time calculation of the round
And finally, writing the real-time garbage incineration amount of the qualified whole factory and the real-time garbage incineration amount of each steady-state operation incinerator calculated in the step 11) into a real-time database, ending the real-time 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 four-furnace three-machine garbage incineration power plant in real time is characterized by comprising the following steps of;
1) Start the real-time calculation of the present round
Defining the current time t as a reference time, and starting the real-time calculation of the round;
2) Collecting design data and historical data
Collecting design data and historical data for a four-furnace three-machine garbage incineration power plant;
3) Determining operating condition parameters, real-time calculation parameters and verification calculation parameters
Dividing the real-time parameters into three types, namely operation condition parameters, real-time 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 steady-state operation, the real-time calculation parameters are used for calculating the real-time waste incineration amount, the check calculation parameters are used for checking the calculated real-time waste incineration amount, and the real-time data of all the real-time parameters are obtained from a real-time 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 real-time database at t History Historical data over time, where t History Defined as a time periodt-6 min-t-1 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 steady-state operation, and if at least one incinerator is in steady-state operation, the whole incinerator is considered to be in steady-state 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 real-time database at t History Historical data over time, where t History The method is defined as a time period t-6 min-t-1 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 real-time database at t History Historical data over time, where t History Defining a time period of t-6min to t-1s, 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 turbo-generator are met simultaneously, the No. N turbo-generator is considered to be in steady-state operation, and if at least one turbo-generator is in steady-state operation, the whole turbo-generator is considered to be in steady-state 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 four-furnace three-machine is in steady-state operation
If the incinerator, the waste heat boiler and the turbo generator are judged to be in steady-state operation according to the steps 4), 5) and 6), the four-furnace three-machine is considered to be in steady-state operation, and the next step of calculation can be continued; otherwise, the four-furnace 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) Real-time computing parameter data filtering
If the four-furnace three-machine is judged to be in steady-state operation according to the step 7), acquiring real-time data X (t) of the real-time calculation parameters in the step 2) at the current t moment from a real-time 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 real-time 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 real-time calculation of the round, and enters the next round of calculation;
9) Calculating real-time garbage incineration amount of whole factory
If the four-furnace three-machine is judged to be in steady-state operation according to the step 7), and when the real-time 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 real-time 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 real-time garbage incineration amount of whole factory
According to the step 7), judging that the four-furnace three-machine is in steady-state operation, and acquiring the check calculation parameters of the 4 incinerators determined in the step 2) from a real-time database, wherein the value of the accumulated incineration amount is not repeated before the current t momentCalculating real-time 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 real-time 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 real-time garbage incineration amount of the whole factory according to the following steps:
calculating real-time 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 real-time calculation of the round; if the calculated real-time 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 real-time 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 steady-state 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 real-time garbage incineration amount LJ of the No. M incinerator according to the step (6) FM (t)：
Finally, the garbage incineration amount of each steady-state operation incinerator is calculated in real time;
12 Data writing into real-time database, and ending the real-time calculation of the round
And finally, writing the real-time garbage incineration amount of the qualified whole factory and the real-time garbage incineration amount of each steady-state operation incinerator calculated in the step 11) into a real-time database, ending the real-time 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 four-furnace three-machine 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 four-furnace three-machine garbage incineration power plant in real time according to claim 1, wherein the four-furnace three-machine operation condition parameters, the real-time 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 four-furnace three-machine are shown in the following table;
real-time calculation parameters, symbols, units and attributions of the four-furnace three-machine are shown in the following table;
The verification and calculation parameters, symbols, units and attributions of the four-furnace three-machine are shown in the following table;
。
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| JP2002106821A (en) * | 2000-09-29 | 2002-04-10 | Kawasaki Heavy Ind Ltd | Method and device for controlling combustion in refuse incineration plant |
| CN111322621A (en) * | 2020-03-06 | 2020-06-23 | 赫普能源环境科技股份有限公司 | Thermal power plant coupled waste incineration power generation system and method |
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| CN112818509A (en) * | 2020-12-31 | 2021-05-18 | 深圳市深能环保东部有限公司 | Method for rapidly calculating waste incineration heat value on line |
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| JP2002106821A (en) * | 2000-09-29 | 2002-04-10 | Kawasaki Heavy Ind Ltd | Method and device for controlling combustion in refuse incineration plant |
| CN111322621A (en) * | 2020-03-06 | 2020-06-23 | 赫普能源环境科技股份有限公司 | Thermal power plant coupled waste incineration power generation system and method |
| CN112016781A (en) * | 2020-04-27 | 2020-12-01 | 绿色动力环保集团股份有限公司 | Method and system for online evaluation of small production and operation indexes of waste incineration power plant |
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