CN113312787A - Circulating fluidized bed boiler simulation method and system and computer storage medium - Google Patents
Circulating fluidized bed boiler simulation method and system and computer storage medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004088 simulation Methods 0.000 title claims abstract description 31
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
- F22B35/18—Applications of computers to steam boiler control
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
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Abstract
The invention relates to the technical field of industrial control, in particular to a method and a system for simulating a circulating fluidized bed boiler and a computer storage medium. The method comprises the steps of obtaining a target configuration file; extracting each configuration parameter from the target configuration file; respectively importing each configuration parameter into a corresponding preset calculation model for simulation calculation; outputting an oxygen quantity parameter and a bed temperature parameter through a combustion model, outputting a main steam pressure parameter through a main steam pressure model, outputting a water level parameter through a water level model, outputting a main steam temperature parameter through a main steam temperature model, outputting a negative pressure parameter through a negative pressure model, and outputting an air chamber pressure parameter through an air chamber pressure model; and carrying out graphical treatment and display on the oxygen quantity parameter, the bed temperature parameter, the main steam pressure parameter, the water level parameter, the main steam temperature parameter, the negative pressure parameter and the air chamber pressure parameter. The invention can more efficiently and comprehensively complete the combustion process simulation of the circulating fluidized bed boiler, and is more convenient to implement and apply.
Description
Technical Field
The invention relates to the technical field of industrial control, in particular to a method and a system for simulating a circulating fluidized bed boiler and a computer storage medium.
Background
The fluidized bed boiler is a boiler adopting a fluidized bed combustion mode. Fluidized bed boilers can be classified into bubbling fluidized bed boilers and circulating fluidized bed boilers according to hydrodynamic characteristics. The circulating fluidized bed boiler is a novel clean coal combustion device developed in recent decades, and has the advantages of low pollutant discharge and control cost, wide fuel application range, strong peak regulation capability, high combustion efficiency and the like in the aspect of clean combustion, particularly combustion of inferior coal. The circulating fluidized bed combustion technology is the technology with the most commercial potential and the lowest pollution discharge control cost in clean coal technology, and simultaneously becomes the most effective means for consuming a large amount of coal gangue brought by coal production due to strong adaptability of coal types.
Due to the complex fluidized state structure of the circulating fluidized bed boiler, the three-dimensional unsteady state flow structure of the circulating fluidized bed can not be really known by adopting a single experimental measurement means, so that the optimized operation of the on-site circulating fluidized bed boiler is greatly limited. With the rapid development of the current computer technology, corresponding conditions are provided for performing simulation on the combustion process inside the circulating fluidized bed boiler, so as to perform optimization and control on the overall combustion process of the circulating fluidized bed boiler through numerical simulation. However, at present, no efficient, comprehensive and simple simulation means is available to solve the problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method and a system for simulating a circulating fluidized bed boiler and a computer storage medium, which can more efficiently and comprehensively complete the simulation of the combustion process of the circulating fluidized bed boiler when in use and are more convenient to implement and apply.
In a first aspect, the present invention provides a method for simulating a circulating fluidized bed boiler, comprising:
acquiring a target configuration file;
extracting each configuration parameter from the target configuration file;
respectively introducing each configuration parameter into a corresponding preset calculation model for simulation calculation, wherein the calculation model comprises a combustion model, a main steam pressure model, a water level model, a main steam temperature model, a negative pressure model and a plenum pressure model;
outputting an oxygen quantity parameter and a bed temperature parameter through a combustion model, outputting a main steam pressure parameter through a main steam pressure model, outputting a water level parameter through a water level model, outputting a main steam temperature parameter through a main steam temperature model, outputting a negative pressure parameter through a negative pressure model, and outputting an air chamber pressure parameter through an air chamber pressure model;
and carrying out graphical treatment and display on the oxygen quantity parameter, the bed temperature parameter, the main steam pressure parameter, the water level parameter, the main steam temperature parameter, the negative pressure parameter and the air chamber pressure parameter.
Based on the content of the invention, each configuration parameter is extracted by obtaining a target configuration file, then each configuration parameter is respectively led into a corresponding preset calculation model for simulation calculation, an oxygen quantity parameter and a bed temperature parameter are output through a combustion model, a main steam pressure parameter is output through a main steam pressure model, a water level parameter is output through a water level model, a main steam temperature parameter is output through a main steam temperature model, a negative pressure parameter is output through a negative pressure model, an air chamber pressure parameter is output through an air chamber pressure model, and the obtained oxygen quantity parameter, the bed temperature parameter, the main steam pressure parameter, the water level parameter, the main steam temperature parameter, the negative pressure parameter and the air chamber pressure parameter are subjected to graphical processing and display, so that the whole combustion process of the circulating fluidized bed boiler is simulated and controlled through numerical simulation. The method has strong practicability and very convenient application, and can more efficiently and comprehensively complete the simulation of the whole combustion process of the circulating fluidized bed boiler.
In one possible design, the method further includes:
receiving configuration parameters sent by each communication interface;
recording each configuration parameter into a file template with a set format;
carrying out custom naming on the input file template, marking configuration time and generating a target configuration file;
and storing the target configuration file.
In a possible design, the configuration parameters include coal feeding frequency converter parameters, primary air door parameters, primary air frequency converter parameters, secondary air door parameters, secondary air frequency converter parameters, coal quality parameters and external load parameters, the calculation model further includes a coal quantity model and a wind quantity model, output oxygen quantity parameters and bed temperature parameters through a combustion model, output main steam pressure parameters through a main steam pressure model, and include:
importing parameters of a coal feeding frequency converter into a coal quantity model to obtain coal quantity parameters;
importing the primary air door parameter, the primary air frequency converter parameter, the secondary air door parameter and the secondary air frequency converter parameter into an air quantity model to obtain a primary air quantity parameter and a secondary air quantity parameter;
introducing the coal quantity parameter, the coal quality parameter, the primary air quantity parameter and the secondary air quantity parameter into a combustion model to obtain a main steam flow parameter, an oxygen quantity parameter and a bed temperature parameter;
and leading the main steam flow parameter and the external load parameter into a main steam pressure model to obtain a main steam pressure parameter.
In one possible design, the configuration parameters include a feed water valve parameter and a sub feed water valve parameter, the calculation model further includes a feed water flow model, and the outputting the water level parameter by the water level model includes:
importing parameters of the water supply valve and parameters of the auxiliary water supply valve into a water supply flow model to obtain water supply flow parameters;
and leading the water supply flow parameter and the main steam flow parameter into the water level model to obtain the water level parameter.
In one possible design, the configuration parameters include a desuperheating water valve parameter, a desuperheater inlet temperature parameter and a hearth outlet temperature parameter, the calculation model further includes a desuperheating water flow model, and the main steam temperature parameter is output through the main steam temperature model, including:
guiding the temperature reduction water valve parameters into a temperature reduction water flow model to obtain temperature reduction water flow parameters;
and importing the desuperheating water flow parameter, the main steam flow parameter, the desuperheater inlet temperature parameter and the hearth outlet temperature parameter into a main steam temperature model to obtain a main steam temperature parameter.
In one possible design, the configuration parameters include an induced draft door parameter and an induced draft frequency converter parameter, and the outputting the negative pressure parameter through the negative pressure model includes:
importing the parameters of the induced draft door and the parameters of the induced draft frequency converter into an air quantity model to obtain induced draft quantity parameters;
and leading the induced air quantity parameter, the primary air quantity parameter and the secondary air quantity parameter into a negative pressure model to obtain a negative pressure parameter.
In one possible design, the configuration parameters include a slag discharge frequency converter parameter, the calculation model further includes a slag discharge amount model, and the outputting the plenum pressure parameter through the plenum pressure model includes:
importing parameters of the slag discharging frequency converter into a slag discharging quantity model to obtain slag discharging quantity parameters;
and introducing the slag discharge quantity parameter, the coal quantity parameter and the coal quality parameter into an air chamber pressure model to obtain an air chamber pressure parameter.
In a second aspect, the present invention provides a fluidized bed boiler simulation system, the system comprising:
an acquisition unit configured to acquire a target configuration file;
the extraction unit is used for extracting each configuration parameter from the target configuration file;
the calculation unit is used for respectively guiding each configuration parameter into a corresponding preset calculation model for simulation calculation, and the calculation model comprises a combustion model, a main steam pressure model, a water level model, a main steam temperature model, a negative pressure model and an air chamber pressure model;
the output unit is used for outputting an oxygen quantity parameter and a bed temperature parameter through the combustion model, outputting a main steam pressure parameter through the main steam pressure model, outputting a water level parameter through the water level model, outputting a main steam temperature parameter through the main steam temperature model, outputting a negative pressure parameter through the negative pressure model and outputting an air chamber pressure parameter through the air chamber pressure model;
and the processing unit is used for carrying out graphical processing and displaying on the oxygen quantity parameter, the bed temperature parameter, the main steam pressure parameter, the water level parameter, the main steam temperature parameter, the negative pressure parameter and the air chamber pressure parameter.
In a third aspect, the present invention provides a computer apparatus comprising:
a memory to store instructions;
a processor configured to read the instructions stored in the memory and execute the method of any of the first aspects according to the instructions.
In a fourth aspect, the present invention provides a computer-readable storage medium having stored thereon instructions which, when run on a computer, cause the computer to perform the method of any of the first aspects described above.
In a fifth aspect, the present invention provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the first aspects above.
The invention has the beneficial effects that:
the method extracts all configuration parameters by obtaining a target configuration file, then respectively introduces all configuration parameters into a corresponding preset calculation model for simulation calculation, outputs an oxygen quantity parameter and a bed temperature parameter through a combustion model, outputs a main steam pressure parameter through a main steam pressure model, outputs a water level parameter through a water level model, outputs a main steam temperature parameter through a main steam temperature model, outputs a negative pressure parameter through a negative pressure model, outputs an air chamber pressure parameter through an air chamber pressure model, and then carries out graphical processing and display on the obtained oxygen quantity parameter, the bed temperature parameter, the main steam pressure parameter, the water level parameter, the main steam temperature parameter, the negative pressure parameter and the air chamber pressure parameter, so that the whole combustion process of the circulating fluidized bed boiler is simulated and controlled through numerical simulation. The method has strong practicability and very convenient application, and can more efficiently and comprehensively complete the simulation of the whole combustion process of the circulating fluidized bed boiler.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the process steps of the present invention;
FIG. 2 is a schematic output diagram of an oxygen quantity parameter, a bed temperature parameter, and a main steam pressure parameter;
FIG. 3 is a schematic diagram of the output of the water level parameter;
FIG. 4 is a schematic output diagram of a main steam temperature parameter;
FIG. 5 is a schematic diagram of the output of negative pressure parameters;
FIG. 6 is a schematic diagram of the output of plenum pressure parameters;
FIG. 7 is a schematic diagram of the system of the present invention;
fig. 8 is a schematic diagram of the computer device of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
It should be understood that the terms first, second, etc. are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.
In the following description, specific details are provided to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.
Example 1:
the embodiment provides a simulation method of a circulating fluidized bed boiler, which can be applied to a simulation server, and as shown in fig. 1, the simulation method includes the following steps:
s101, obtaining a target configuration file.
In specific implementation, the target configuration file may be called from a memory of the server according to a corresponding operation instruction, and the obtaining process of the target configuration file in the memory includes: the configuration parameters sent by each communication interface are received by the server, the configuration parameters comprise the magnification, the lower limit, the upper limit, the bias setting and the like of the parameters, the configuration parameters sent by each communication interface can be manually adjusted and output or can be automatically set, and the communication interfaces comprise RJ45 network interfaces, RS485 interfaces, RS232 interfaces, MODBUS interfaces and the like and are used for respectively transmitting the configuration parameters of different protocols; the server inputs each configuration parameter into a file template with a set format, the configuration parameters transmitted by each communication interface can be attached to files with various formats, such as files with formats of EXCEL, TXT and the like, and the subsequent unification processing is facilitated by inputting each configuration parameter into the file template with the set format; the server carries out self-defined naming on the recorded file template, marks configuration time and generates a target configuration file; and then the target configuration file is stored in a memory so as to be convenient to call at any time for simulation use, and can be quickly searched and found according to naming and configuration time during calling.
And S102, extracting each configuration parameter from the target configuration file.
When the method is specifically implemented, the server opens a target configuration file with a set format, and can extract various configuration parameters from the target configuration file, wherein the configuration parameters comprise a coal supply frequency converter parameter, a primary air door parameter, a primary air frequency converter parameter, a secondary air door parameter, a secondary air frequency converter parameter, a coal quality parameter, an external load parameter, a water valve parameter, a secondary water supply valve parameter, a temperature reduction water valve parameter, a temperature reduction device inlet temperature parameter, a hearth outlet temperature parameter, an air induction door parameter, an air induction frequency converter parameter and a slag discharge frequency converter parameter, so that various parameters related to the combustion process of the circulating fluidized bed boiler can be more comprehensively covered.
And S103, respectively introducing the configuration parameters into corresponding preset calculation models to carry out simulation calculation, wherein the calculation models comprise a coal quantity model, an air quantity model, a water supply flow model, a temperature reduction water flow model, a slag discharge frequency converter parameter, a combustion model, a main steam pressure model, a water level model, a main steam temperature model, a negative pressure model and a wind chamber pressure model.
During specific implementation, the calculation models can be used for constructing corresponding mathematical models in advance through the server, then, historical experience data of the actual combustion process of the circulating fluidized bed boiler is used as training data to conduct training and correction for each mathematical model for a plurality of times, and finally, each formed calculation model is obtained, so that calculation accuracy of each calculation model in the subsequent simulation process is improved.
S104, outputting an oxygen quantity parameter and a bed temperature parameter through the combustion model, outputting a main steam pressure parameter through the main steam pressure model, outputting a water level parameter through the water level model, outputting a main steam temperature parameter through the main steam temperature model, outputting a negative pressure parameter through the negative pressure model, and outputting an air chamber pressure parameter through the air chamber pressure model.
In specific implementation, as shown in fig. 2, the outputting oxygen quantity parameters and bed temperature parameters through the combustion model and the outputting main steam pressure parameters through the main steam pressure model includes:
importing parameters of a coal feeding frequency converter into a coal quantity model to obtain coal quantity parameters;
importing the primary air door parameter, the primary air frequency converter parameter, the secondary air door parameter and the secondary air frequency converter parameter into an air quantity model to obtain a primary air quantity parameter and a secondary air quantity parameter;
introducing the coal quantity parameter, the coal quality parameter, the primary air quantity parameter and the secondary air quantity parameter into a combustion model to obtain a main steam flow parameter, an oxygen quantity parameter and a bed temperature parameter;
and leading the main steam flow parameter and the external load parameter into a main steam pressure model to obtain a main steam pressure parameter.
As shown in fig. 3, the outputting the water level parameter through the water level model includes:
importing parameters of the water supply valve and parameters of the auxiliary water supply valve into a water supply flow model to obtain water supply flow parameters;
and leading the water supply flow parameter and the main steam flow parameter into the water level model to obtain the water level parameter.
As shown in fig. 4, the outputting of the main steam temperature parameter through the main steam temperature model includes:
guiding the temperature reduction water valve parameters into a temperature reduction water flow model to obtain temperature reduction water flow parameters;
and importing the desuperheating water flow parameter, the main steam flow parameter, the desuperheater inlet temperature parameter and the hearth outlet temperature parameter into a main steam temperature model to obtain a main steam temperature parameter.
As shown in fig. 5, the outputting the negative pressure parameter through the negative pressure model includes:
importing the parameters of the induced draft door and the parameters of the induced draft frequency converter into an air quantity model to obtain induced draft quantity parameters;
and leading the induced air quantity parameter, the primary air quantity parameter and the secondary air quantity parameter into a negative pressure model to obtain a negative pressure parameter.
As shown in fig. 6, the air-passing chamber pressure model outputs a chamber pressure parameter, which includes:
importing parameters of the slag discharging frequency converter into a slag discharging quantity model to obtain slag discharging quantity parameters;
and introducing the slag discharge quantity parameter, the coal quantity parameter and the coal quality parameter into an air chamber pressure model to obtain an air chamber pressure parameter.
And S105, carrying out graphical treatment and display on the oxygen quantity parameter, the bed temperature parameter, the main steam pressure parameter, the water level parameter, the main steam temperature parameter, the negative pressure parameter and the air chamber pressure parameter.
During specific implementation, the finally obtained oxygen quantity parameter, bed temperature parameter, main steam pressure parameter, water level parameter, main steam temperature parameter, negative pressure parameter and plenum pressure parameter are subjected to graphical processing and display through the server, the graphical processing and display comprise the steps of substituting the parameters into a corresponding three-dimensional modeling model of the circulating fluidized bed boiler to perform three-dimensional image display of the combustion process, or manufacturing the parameters into a corresponding chart according to set requirements to perform display and the like.
Example 2:
the present embodiment provides a fluidized bed boiler simulation system, as shown in fig. 7, including:
an acquisition unit configured to acquire a target configuration file;
the extraction unit is used for extracting each configuration parameter from the target configuration file;
the calculation unit is used for respectively guiding each configuration parameter into a corresponding preset calculation model for simulation calculation, and the calculation model comprises a combustion model, a main steam pressure model, a water level model, a main steam temperature model, a negative pressure model and an air chamber pressure model;
the output unit is used for outputting an oxygen quantity parameter and a bed temperature parameter through the combustion model, outputting a main steam pressure parameter through the main steam pressure model, outputting a water level parameter through the water level model, outputting a main steam temperature parameter through the main steam temperature model, outputting a negative pressure parameter through the negative pressure model and outputting an air chamber pressure parameter through the air chamber pressure model;
and the processing unit is used for carrying out graphical processing and displaying on the oxygen quantity parameter, the bed temperature parameter, the main steam pressure parameter, the water level parameter, the main steam temperature parameter, the negative pressure parameter and the air chamber pressure parameter.
Example 3:
the embodiment provides a computer device, as shown in fig. 8, which includes, at a hardware level:
a memory to store instructions;
and the processor is used for reading the instructions stored in the memory and executing the circulating fluidized bed boiler simulation method in the embodiment 1 according to the instructions.
Optionally, the computer device further comprises an internal bus and a communication interface. The processor, the memory, and the communication interface may be connected to each other via an internal bus, which may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc.
The Memory may include, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Flash Memory (Flash Memory), a First In First Out (FIFO), a First In Last Out (FILO), and/or the like. The Processor may be a general-purpose Processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
Example 4:
the present embodiment provides a computer-readable storage medium having stored thereon instructions, which when executed on a computer, cause the computer to perform the method of circulating fluidized bed boiler simulation described in embodiment 1. The computer-readable storage medium refers to a carrier for storing data, and may include, but is not limited to, floppy disks, optical disks, hard disks, flash memories, flash disks and/or Memory sticks (Memory sticks), etc., and the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
Example 5:
the present embodiment provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of circulating fluidized bed boiler simulation described in embodiment 1. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable devices.
Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of simulating a circulating fluidized bed boiler, comprising:
acquiring a target configuration file;
extracting each configuration parameter from the target configuration file;
respectively introducing each configuration parameter into a corresponding preset calculation model for simulation calculation, wherein the calculation model comprises a combustion model, a main steam pressure model, a water level model, a main steam temperature model, a negative pressure model and a plenum pressure model;
outputting an oxygen quantity parameter and a bed temperature parameter through a combustion model, outputting a main steam pressure parameter through a main steam pressure model, outputting a water level parameter through a water level model, outputting a main steam temperature parameter through a main steam temperature model, outputting a negative pressure parameter through a negative pressure model, and outputting an air chamber pressure parameter through an air chamber pressure model;
and carrying out graphical treatment and display on the oxygen quantity parameter, the bed temperature parameter, the main steam pressure parameter, the water level parameter, the main steam temperature parameter, the negative pressure parameter and the air chamber pressure parameter.
2. The method of claim 1, further comprising:
receiving configuration parameters sent by each communication interface;
recording each configuration parameter into a file template with a set format;
carrying out custom naming on the input file template, marking configuration time and generating a target configuration file;
and storing the target configuration file.
3. The method of claim 1, wherein the configuration parameters include a coal feeding frequency converter parameter, a primary air door parameter, a primary air frequency converter parameter, a secondary air door parameter, a secondary air frequency converter parameter, a coal quality parameter, and an external load parameter, the calculation model further includes a coal quantity model and a coal quantity model, the outputting of the oxygen quantity parameter and the bed temperature parameter by the combustion model, and the outputting of the main steam pressure parameter by the main steam pressure model include:
importing parameters of a coal feeding frequency converter into a coal quantity model to obtain coal quantity parameters;
importing the primary air door parameter, the primary air frequency converter parameter, the secondary air door parameter and the secondary air frequency converter parameter into an air quantity model to obtain a primary air quantity parameter and a secondary air quantity parameter;
introducing the coal quantity parameter, the coal quality parameter, the primary air quantity parameter and the secondary air quantity parameter into a combustion model to obtain a main steam flow parameter, an oxygen quantity parameter and a bed temperature parameter;
and leading the main steam flow parameter and the external load parameter into a main steam pressure model to obtain a main steam pressure parameter.
4. The method of claim 3, wherein the configuration parameters comprise feed water valve parameters and secondary feed water valve parameters, the calculation model further comprises a feed water flow model, and the outputting the water level parameters by the water level model comprises:
importing parameters of the water supply valve and parameters of the auxiliary water supply valve into a water supply flow model to obtain water supply flow parameters;
and leading the water supply flow parameter and the main steam flow parameter into the water level model to obtain the water level parameter.
5. The method of claim 3, wherein the configuration parameters comprise a desuperheater valve parameter, a desuperheater inlet temperature parameter and a furnace outlet temperature parameter, the calculation model further comprises a desuperheater water flow model, and the outputting of the main steam temperature parameter through the main steam temperature model comprises:
guiding the temperature reduction water valve parameters into a temperature reduction water flow model to obtain temperature reduction water flow parameters;
and importing the desuperheating water flow parameter, the main steam flow parameter, the desuperheater inlet temperature parameter and the hearth outlet temperature parameter into a main steam temperature model to obtain a main steam temperature parameter.
6. The method of claim 3, wherein the configuration parameters comprise an induced draft door parameter and an induced draft frequency converter parameter, and the outputting the negative pressure parameter through the negative pressure model comprises:
importing the parameters of the induced draft door and the parameters of the induced draft frequency converter into an air quantity model to obtain induced draft quantity parameters;
and leading the induced air quantity parameter, the primary air quantity parameter and the secondary air quantity parameter into a negative pressure model to obtain a negative pressure parameter.
7. The method of claim 3, wherein the configuration parameters comprise a slagging inverter parameter, the calculation model further comprises a slagging amount model, and the outputting the plenum pressure parameter by the plenum pressure model comprises:
importing parameters of the slag discharging frequency converter into a slag discharging quantity model to obtain slag discharging quantity parameters;
and introducing the slag discharge quantity parameter, the coal quantity parameter and the coal quality parameter into an air chamber pressure model to obtain an air chamber pressure parameter.
8. A fluidized bed boiler simulation system, comprising:
an acquisition unit configured to acquire a target configuration file;
the extraction unit is used for extracting each configuration parameter from the target configuration file;
the calculation unit is used for respectively guiding each configuration parameter into a corresponding preset calculation model for simulation calculation, and the calculation model comprises a combustion model, a main steam pressure model, a water level model, a main steam temperature model, a negative pressure model and an air chamber pressure model;
the output unit is used for outputting an oxygen quantity parameter and a bed temperature parameter through the combustion model, outputting a main steam pressure parameter through the main steam pressure model, outputting a water level parameter through the water level model, outputting a main steam temperature parameter through the main steam temperature model, outputting a negative pressure parameter through the negative pressure model and outputting an air chamber pressure parameter through the air chamber pressure model;
and the processing unit is used for carrying out graphical processing and displaying on the oxygen quantity parameter, the bed temperature parameter, the main steam pressure parameter, the water level parameter, the main steam temperature parameter, the negative pressure parameter and the air chamber pressure parameter.
9. A computer device, characterized in that the computer device comprises:
a memory to store instructions;
a processor for reading the instructions stored in the memory and executing the method of any one of claims 1-7 in accordance with the instructions.
10. A computer-readable storage medium having stored thereon instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-7.
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| CN202110654005.6A CN113312787A (en) | 2021-06-11 | 2021-06-11 | Circulating fluidized bed boiler simulation method and system and computer storage medium |
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