CN114077795A - Simulation platform with heat supply thermodynamic system, heat supply coal consumption determination method and related components - Google Patents
Simulation platform with heat supply thermodynamic system, heat supply coal consumption determination method and related components Download PDFInfo
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Abstract
The application discloses a simulation platform with a heat supply thermodynamic system, a heat supply coal consumption determination method and related components, wherein the simulation platform with the heat supply thermodynamic system comprises an input interface, a simulation model and an output interface, and the input interface is used for inputting a heat supply mode, heat supply flow and unit load determined according to heat supply requirements to the simulation platform; the simulation model is used for acquiring the input heat supply mode, heat supply flow and unit load, and carrying out simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the heat supply flow and the unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method; and the output interface is used for outputting the calculated heat supply coal consumption to a manual interaction interface of the simulation platform for displaying. The corresponding heat supply coal consumption is finally determined and output by constructing a simulation platform with a heat supply thermodynamic system and inputting a heat supply mode, heat supply flow and unit load for simulation calculation, and the heat supply coal consumption can be obtained more efficiently and accurately through the simulation calculation.
Description
Technical Field
The invention relates to the technical field of thermal power generation, in particular to a simulation platform with a heat supply thermodynamic system, a heat supply coal consumption determination method, a heat supply coal consumption determination device, equipment and a storage medium.
Background
With the increasing and slowing of the social electricity demand and the large-scale development of renewable energy sources, the number of thermal power utilization hours is reduced year by year, the power grid function of the coal-fired thermal power generating unit is gradually changed from a main body to an electric power regulation type, the operation pressure of coal-fired power generation enterprises is huge, and the problem of long-term survival cannot be solved by only depending on power generation. Therefore, the heat-engine plant gradually manages the idea, the original power generation is mainly used, the industries such as resident heat supply and industrial steam supply are used as assistance, the power generation is changed into the assistance, the emerging services such as resident heat supply and industrial steam supply are greatly expanded, the profit field is expanded, and the long-term competitiveness of enterprises is maintained. For a coal-fired cogeneration thermal power unit, the heat supply coal consumption is an important economic index for production and operation of enterprises, the real heat supply coal consumption of steam with different qualities is calculated, and the method has important values on heat supply income accounting, heat supply transformation mode selection, heat supply operation optimization, external heat price negotiation and other works.
Therefore, how to efficiently and accurately determine the heating coal consumption is an urgent technical problem to be solved by technical personnel in the field.
Disclosure of Invention
In view of the above, the present invention provides a simulation platform with a heating thermodynamic system, a method, an apparatus, a device, and a storage medium for determining heating coal consumption, which can obtain heating coal consumption more efficiently and accurately through simulation calculation. The specific scheme is as follows:
the first aspect of this application provides a take heat supply thermodynamic system simulation platform, is applied to combined heat and power units, includes:
the input interface is used for inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply demand to the simulation platform with the heat supply thermodynamic system;
the simulation model is used for acquiring the input heat supply mode, the input heat supply flow and the input unit load, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit return method;
and the output interface is used for outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform for displaying.
Optionally, the simulation model includes a first simulation module, a second simulation module, and a third simulation module, where:
the first simulation module is used for carrying out simulation calculation on the first coal consumption under the pure condensing working condition according to the unit load;
the second simulation module is used for carrying out simulation calculation on the consumption of second coal under the heat supply working condition according to the heat supply mode, the heat supply flow and the unit load;
and the third simulation module is used for calculating the heating coal consumption according to the first coal consumption and the second coal consumption by simulation according to a beneficial heat return method.
Optionally, the input interface is further configured to input different data combinations including the heat supply mode, the heat supply flow rate, and the unit load, which are determined according to different heat supply requirements, to the simulation platform of the thermal system with heat supply; and the heat supply modes in different data combinations are different, and the heat supply flow and the unit load are respectively and correspondingly the same.
Optionally, the input interface is further configured to input different data combinations including the heat supply mode, the heat supply flow rate, and the unit load, which are determined according to different heat supply requirements, to the simulation platform of the thermal system with heat supply; and the heat supply flow in different data combinations is different, and the heat supply mode and the unit load are respectively and correspondingly the same.
Optionally, the output interface is further configured to output the calculated heat supply coal consumption corresponding to each data combination to the manual interaction interface with the heat supply thermodynamic system simulation platform for display, so as to determine a heat supply coal consumption influence factor according to difference data between the heat supply coal consumption.
A second aspect of the present application provides a method for determining a heating coal consumption, which is applied to a cogeneration unit, and includes:
acquiring performance parameters of a cogeneration unit of a power plant, and modeling a belt heating thermodynamic system according to the performance parameters to obtain a corresponding belt heating thermodynamic system simulation platform comprising an input interface, a simulation model and an output interface;
inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply demand into the simulation platform with the heat supply thermodynamic system through the input interface;
acquiring the input heat supply mode, the input heat supply flow and the input unit load by using the simulation model, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method;
and outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform through the output interface for displaying.
Optionally, the method for determining coal consumption for heat supply further includes:
and correcting the simulation model by using the test data of the high-precision steam turbine with the heat supply performance.
A third aspect of the present application provides a heating coal consumption determination device, which is applied to a cogeneration unit, and includes:
the simulation platform construction module is used for acquiring performance parameters of a cogeneration unit of the power plant and modeling a belt heating thermodynamic system according to the performance parameters to obtain a corresponding belt heating thermodynamic system simulation platform comprising an input interface, a simulation model and an output interface;
the input module is used for inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply requirement into the simulation platform of the thermal system with heat supply through the input interface;
the simulation calculation module is used for acquiring the input heat supply mode, the input heat supply flow and the input unit load by using the simulation model, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method;
and the output module is used for outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform for displaying through the output interface.
A fourth aspect of the present application provides an electronic device comprising a processor and a memory; wherein the memory is used for storing a computer program which is loaded and executed by the processor to realize the aforementioned heating coal consumption determination method.
A fifth aspect of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are loaded and executed by a processor, the method for determining the heating coal consumption is implemented.
In the application, the simulation platform with the heat supply thermodynamic system comprises an input interface, a simulation model and an output interface, wherein the input interface is used for inputting a heat supply mode, heat supply flow and unit load determined according to heat supply requirements into the simulation platform with the heat supply thermodynamic system; the simulation model is used for acquiring the input heat supply mode, the input heat supply flow and the input unit load, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method; and the output interface is used for outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform for displaying. On the basis, the simulation platform with the heat supply thermodynamic system is constructed, the heat supply mode, the heat supply flow and the unit load are input into the simulation platform, then the coal consumption under different working conditions is subjected to simulation calculation, the corresponding heat supply coal consumption is finally determined and output, and the heat supply coal consumption is obtained more efficiently and accurately through the simulation calculation.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a diagram of a simulation platform structure with a heating thermodynamic system provided in the present application;
FIG. 2 is an example of output data of a thermal system with heating provided by the present application;
FIG. 3 is a flow chart of a method for determining coal consumption for heating provided by the present application;
FIG. 4 is a schematic structural diagram of a heating coal consumption determining apparatus provided in the present application;
fig. 5 is a structural diagram of an electronic device for determining coal consumption for heating according to the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the prior art, the heating coal consumption obtained by calculation only through a 'benefit return to electricity' method is not accurate enough, and aiming at the technical defect, the application provides the simulation platform with the heating thermodynamic system and the method for determining the heating coal consumption.
Fig. 1 is a diagram of a simulation platform architecture with a heating thermodynamic system according to an embodiment of the present application. Referring to fig. 1, the simulation platform with a heating thermodynamic system is applied to a cogeneration unit, and includes an input interface 01, a simulation model 02, and an output interface 03, where:
the input interface 01 is used for inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply demand to the simulation platform with the heat supply thermodynamic system; the simulation model 02 is used for acquiring the input heat supply mode, the input heat supply flow and the input unit load, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method; and the output interface 03 is configured to output the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermal system simulation platform for display.
In this embodiment, the input interface 01 is configured to input the heat supply mode, the heat supply flow rate, and the unit load determined according to the heat supply demand to the simulation platform with the heat supply thermodynamic system. Of course, the heating coal consumption can be calculated through a plurality of parameters, but the traditional analysis method of equivalent enthalpy drop and the like is not suitable any more due to more variable dimensions. It can be understood that, on one hand, the quality of the heating steam has a direct relation with the heating pressure and temperature, if the steam extraction pressure and temperature of the steam turbine are higher, the steam turbine often needs to be supplied after temperature and pressure reduction, and the real coal consumption difference of the heating steam of different grades is larger. Through analysis, after the steam turbine is subjected to heat supply transformation, the heat supply modes of the unit, namely the heat supply steam extraction and drainage/return water positions are basically determined. Each heating mode approximately corresponds to an external heating grade, and the external heating pressure of the grade is determined by the lowest heat utilization pressure requirement of a user and the pressure loss of a heating pipeline. In addition, most of heat users have low requirement on heating temperature, and the heat users only need micro superheated steam. In the actual heating process. The heat demand of a thermal power plant is generally divided into a plurality of grades such as high pressure, medium pressure, heating and the like, and the heating mode of each grade of heat supply under daily operation load is basically determined. Namely, the factors can be summarized as the influence of the heating mode on the real heating coal consumption. On the other hand, the heat supply of the steam turbine can cause the pressure of a stage group behind a steam extraction port of the steam turbine to be reduced, when the heat supply amount is large, the external heat supply pressure can be maintained even by throttling and suppressing pressure through a middle adjusting door, a cylinder valve, a rotary partition plate, a middle exhaust butterfly valve and the like, the generating efficiency of the unit is reduced, the coal consumption of the unit for heat supply is further increased, and the heat supply flow can be represented through the heat supply flow or the heat-electricity ratio. In addition, the pure condensing working condition power generation coal consumption corresponding to different unit electrical loads is different, and the real heat supply coal consumption is also influenced. Therefore, for a specific heat supply unit, the heat supply mode of the unit, the load of the unit and the heat supply flow are main factors influencing the real heat supply coal consumption in the actual heat supply process. Based on this, this embodiment will break through and carry out quantitative analysis to the heating coal consumption from heating methods, heating flow and unit load three dimension, and above-mentioned heating coal consumption also is real heating coal consumption to can embody the influence of different heating tastes to heating coal consumption.
In one embodiment, the input interface 01 is further configured to input different data combinations including the heat supply mode, the heat supply flow rate, and the unit load, which are determined according to different heat supply requirements, to the simulation platform of the belt heating thermodynamic system; and the heat supply modes in different data combinations are different, and the heat supply flow and the unit load are respectively and correspondingly the same. In another embodiment, the input interface 01 is further configured to input different data combinations including the heat supply mode, the heat supply flow rate, and the unit load, which are determined according to different heat supply requirements, to the simulation platform of the belt heating thermodynamic system; and the heat supply flow in different data combinations is different, and the heat supply mode and the unit load are respectively and correspondingly the same. Considering that the load rate of the current thermal power generating unit is low, the heat supply of the unit does not influence load scheduling generally. Therefore, in order to form data comparison, the present embodiment keeps the electrical load of the unit unchanged, changes the heat supply flow rate in a certain heat supply mode or changes a certain heat supply mode, compares the coal consumption of the heat supply working condition and the pure condensation working condition under the same load, and calculates to obtain the real heat supply coal consumption. Of course, for the simulation platform with the heat supply thermodynamic system, a user can change the heat supply mode, the heat supply flow and the unit load according to the actual production demand or the actual heat supply condition to carry out actual input.
In this embodiment, the simulation model 02 is configured to obtain the input heat supply mode, the input heat supply flow, and the input unit load, and perform simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow, and the input unit load, so as to determine the corresponding heat supply coal consumption according to a benefit return-to-heat method. Specifically, the simulation model 02 includes a first simulation module, a second simulation module, and a third simulation module. The first simulation module is used for carrying out simulation calculation on the first coal consumption under the pure condensing working condition according to the unit load; the second simulation module is used for carrying out simulation calculation on the consumption of second coal under the heat supply working condition according to the heat supply mode, the heat supply flow and the unit load; and the third simulation module is used for calculating the heating coal consumption according to the first coal consumption and the second coal consumption by simulation according to a benefit heat return method. If the unit has multiple heat supply modes, the heat supply quantity of the heat supply mode is set to be 0, the heat supply quantities of other heat supply modes are changed, and calculation is carried out again. The real heat supply coal consumption of one heat supply mode is calculated at each time. The unit load and the heat supply flow are usually the average load and the average heat supply of the unit in a certain period of time, and can also be selected according to the requirements of personnel in a power plant.
Generally, the heat supply cost is composed of heat supply coal burning cost, heat supply water consumption cost, equipment depreciation cost, human resource cost and the like. Wherein, the cost of the heat supply coal accounts for more than 70 percent of the heat supply cost, and the cost of the heat supply coal is directly related to the consumption of the heat supply coal. When the time consumed by the coal for heating is calculated by the power plant, a sharing method of 'benefit returning to electricity' is usually adopted according to the standard of 'technical and economic index calculation method of thermal power plant' DL/T904, and the calculation formula of the coal for heating given in the standard DL/T904-2015 is as follows:
wherein: bb is total standard coal consumption; α is a heat supply ratio, i.e., a ratio of a heat supply amount Σ Qgr to a total heat consumption amount Σ Qsr;
according to the two formulas above the DLT904 standard, the heat supply coal consumption is deduced to be only related to the boiler efficiency and the pipeline efficiency (the heat productivity of the standard coal is 29307.6 kJ/kg).
And the heat supply coal cost of the coal-fired cogeneration unit is equal to the heat supply coal consumption multiplied by the standard coal price. Therefore, the heating coal consumption obtained by the calculation method is only related to the boiler efficiency and the pipeline efficiency, and is not related to the grade of the supplied steam. The method greatly reduces the coal consumption of the unit for generating electricity, but the calculated fuel cost of each level of heat supply is the same, and the real cost condition of each level of heat supply cannot be well reflected.
Based on this, this embodiment adopts the apportionment mode of "benefit returns to heat", can calculate the real heat supply coal consumption more accurately, obtains the real coal consumption of unit steam. The 'benefit returning heat' method is also called as an actual enthalpy drop method, and the total coal consumption is distributed according to the proportion of the actual enthalpy drop insufficiency of the heat supply extraction steam of the steam turbine and the total actual enthalpy drop of the inlet steam. In short, the benefits of cogeneration are distributed to heat supply, the coal consumption for generating electricity by a unit is unchanged, and the economical efficiency of heat supply is finally embodied in the real coal consumption (cost) of heat supply of different heat supply modes. In this embodiment, the real heat supply coal consumption calculation formula of the simulation model 02 is as follows:
wherein Bbc is the coal consumption of the unit under the pure condensing condition in kg/s; bbg is the coal consumption of the heat supply working condition unit in kg/s; qgr indicates the heat supply amount in a certain heating mode, GW; brt is the real heat supply coal consumption of the heat supply, kg/GJ.
In this embodiment, the output interface 03 is configured to output the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermal system simulation platform for display. When the input module 01 inputs a data combination, the output interface 03 is further configured to output the calculated heat supply coal consumption corresponding to each data combination to the manual interaction interface with the heat supply thermal system simulation platform for display, so as to determine a heat supply coal consumption influence factor according to difference data between the heat supply coal consumption. And further obtaining data such as heat supply cost and the like based on heat supply coal consumption, and outputting and displaying the data on the interface.
In this embodiment, a steam turbine of a 2 × 350MW unit in a power plant is specifically described as an example of a supercritical, single-intermediate reheating, single-shaft, three-cylinder two-steam-exhaust, double-steam-extraction segment type heat supply type, wet condensing steam type steam turbine. Assuming that the annual average load of the unit is 270MW, the steam turbine is provided with two heating modes with different parameter levels. Wherein, the primary industrial extraction steam is directly supplied to the outside after being remixed by cold and heat, the steam supply pressure is 3.8MPa.a, and the average steam supply flow is 40 t/h. And the secondary industrial extraction steam source is 3-stage extraction steam of the steam turbine, and the extraction steam is supplied after water spraying and temperature reduction. The flow is controlled by the opening degrees of three industrial steam extraction seat cylinder valves at the upper part of the medium-pressure outer cylinder, the steam supply pressure is 2.3MPa.a, the average steam supply flow is 150t/h, the unit backpressure is 5.3kPa, heat and water are supplied to a condenser, and the water supply temperature is 20 ℃. The output display after calculating the first-stage and second-stage extraction real heat supply coal consumption (cost) is shown in fig. 2. According to the distribution method of 'benefit return to heat', all heat supply benefits are returned to heat supply, and the coal consumption of unit power supply is unchanged. The boiler efficiency is 92%, the pipeline efficiency is 99%, and the change of the coal consumption under different working conditions is calculated. When the real heat supply cost is calculated, the coal consumption of the unit for generating electricity is considered to be unchanged, and the advantage of reducing the coal consumption is completely integrated with heat supply. Comparing the real cost of each section of heat supply, the coal consumption (cost) of the first-stage heat supply is higher than the coal consumption of the second-stage heat supply. The result also reflects the heat supply grade of different steam extraction positions and pressure parameters.
It can be seen that the simulation platform with a heat supply thermodynamic system in this embodiment includes an input interface, a simulation model, and an output interface, where the input interface is used to input a heat supply mode, a heat supply flow, and a unit load determined according to a heat supply demand to the simulation platform with a heat supply thermodynamic system; the simulation model is used for acquiring the input heat supply mode, the input heat supply flow and the input unit load, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method; and the output interface is used for outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform for displaying. According to the embodiment of the application, the interaction of the input interface, the simulation model and the output interface can control the heating thermodynamic system to output the heating coal consumption more accurately.
Fig. 3 is a flowchart of a method for determining coal consumption for heating according to an embodiment of the present application. Referring to fig. 3, the method for determining the coal consumption for heating is applied to a cogeneration unit, and includes:
s11: the method comprises the steps of obtaining performance parameters of a cogeneration unit of the power plant, and modeling a belt heating thermodynamic system according to the performance parameters to obtain a corresponding belt heating thermodynamic system simulation platform comprising an input interface, a simulation model and an output interface.
In the embodiment, firstly, performance parameters of a cogeneration unit of a power plant are obtained, and a simulation platform of the belt heating thermodynamic system, which comprises an input interface, a simulation model and an output interface, is obtained by modeling the belt heating thermodynamic system according to the performance parameters. The simulation platform with the heat supply thermodynamic system is also based on computer thermodynamic system simulation software, and a model with the heat supply thermodynamic system is established according to specific power plant steam turbine characteristic data. The performance parameters of the steam turbine can be obtained from a thermal equilibrium diagram provided by a steam turbine manufacturer, and can also be obtained through actually measured data of a thermal performance test of the steam turbine. The steam extraction and drainage/water return positions and the external steam supply pressure and temperature of the established model with the heat supply thermodynamic system are the same as the actual heat supply condition of the unit. And correcting the simulation model by using the test data of the high-precision steam turbine with the heat supply performance. In order to improve the calculation accuracy of the heat supply coal consumption, the model precision can be corrected by adopting the test data of the heat supply performance of the high-precision steam turbine.
S12: and inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply demand into the simulation platform with the heat supply thermodynamic system through the input interface.
S13: and acquiring the input heat supply mode, the input heat supply flow and the input unit load by using the simulation model, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method.
S14: and outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform through the output interface for displaying.
In this embodiment, the processes of steps S12 to S14 may refer to the specific contents disclosed in the foregoing embodiments, and details thereof are not repeated in this embodiment. It should be added that, in this embodiment, a simulation software is established based on the computer thermal system, and a boiler and turbine combined belt heating thermodynamic system model is established according to the actual heating mode of a specific power plant. The actual coal consumption (cost) of heat supply mainly depends on the heat supply mode, the unit load and the heat supply flow. Keeping the electrical load of the unit unchanged, changing the heat supply flow of the thermal system model in the heat supply mode, performing variable working condition simulation calculation based on the established thermal system model with heat supply, comparing the heat supply working condition with the coal consumption in the pure condensation working condition to obtain the real heat supply coal consumption, and calculating the real heat supply cost according to the real heat supply coal consumption and the standard coal price to supply the power plant for daily work. The method overcomes the defect that the current universal calculation method for the heat supply coal consumption index of the coal-fired unit cannot reflect the difference of heat supply steam economy of different qualities. By establishing a thermal system model with heat supply, the real heat supply coal consumption is quantitatively evaluated from three dimensions of heat supply modes, heat supply flow and unit load, and meanwhile, the heat supply economical efficiency of different heat supply modes is reflected.
Therefore, the embodiment of the application firstly obtains the performance parameters of the cogeneration unit of the power plant, and models the belt heating thermodynamic system according to the performance parameters to obtain a corresponding belt heating thermodynamic system simulation platform comprising an input interface, a simulation model and an output interface; then inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply requirement into the simulation platform with the heat supply thermodynamic system through the input interface; then, acquiring the input heat supply mode, the input heat supply flow and the input unit load by using the simulation model, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method; and finally, outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform through the output interface for displaying. According to the embodiment of the application, the simulation platform with the heat supply thermodynamic system is constructed, the heat supply mode, the heat supply flow and the unit load are input into the simulation platform, then simulation calculation is carried out on the coal consumption under different working conditions, the corresponding heat supply coal consumption is finally determined and output, and the heat supply coal consumption is obtained more efficiently and accurately through the simulation calculation.
Referring to fig. 4, an embodiment of the present application further discloses a heating coal consumption determining apparatus correspondingly, which is applied to a cogeneration unit, and includes:
the simulation platform construction module 11 is used for acquiring performance parameters of a cogeneration unit of a power plant, and modeling a belt heating thermodynamic system according to the performance parameters to obtain a corresponding belt heating thermodynamic system simulation platform comprising an input interface, a simulation model and an output interface;
the input module 12 is used for inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply requirement to the simulation platform of the thermal system with heat supply through the input interface;
the simulation calculation module 13 is configured to obtain the input heat supply mode, the input heat supply flow and the input unit load by using the simulation model, and perform simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load, so as to determine corresponding heat supply coal consumption according to a benefit return method;
and the output module 14 is used for outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform through the output interface for displaying.
Therefore, the embodiment of the application firstly obtains the performance parameters of the cogeneration unit of the power plant, and models the belt heating thermodynamic system according to the performance parameters to obtain a corresponding belt heating thermodynamic system simulation platform comprising an input interface, a simulation model and an output interface; then inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply requirement into the simulation platform with the heat supply thermodynamic system through the input interface; then, acquiring the input heat supply mode, the input heat supply flow and the input unit load by using the simulation model, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method; and finally, outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform through the output interface for displaying. According to the embodiment of the application, the simulation platform with the heat supply thermodynamic system is constructed, the heat supply mode, the heat supply flow and the unit load are input into the simulation platform, then simulation calculation is carried out on the coal consumption under different working conditions, the corresponding heat supply coal consumption is finally determined and output, and the heat supply coal consumption is obtained more efficiently and accurately through the simulation calculation.
In some specific embodiments, the heating coal consumption determining apparatus further includes:
and the correction module is used for correcting the simulation model by using the test data of the high-precision steam turbine with the heat supply performance.
Further, the embodiment of the application also provides electronic equipment. FIG. 5 is a block diagram illustrating an electronic device 20 according to an exemplary embodiment, and the contents of the diagram should not be construed as limiting the scope of use of the present application in any way.
Fig. 5 is a schematic structural diagram of an electronic device 20 according to an embodiment of the present disclosure. The electronic device 20 may specifically include: at least one processor 21, at least one memory 22, a power supply 23, a communication interface 24, an input output interface 25, and a communication bus 26. Wherein, the memory 22 is used for storing a computer program, and the computer program is loaded and executed by the processor 21 to implement the relevant steps in the heating coal consumption determining method disclosed in any one of the foregoing embodiments.
In this embodiment, the power supply 23 is configured to provide a working voltage for each hardware device on the electronic device 20; the communication interface 24 can create a data transmission channel between the electronic device 20 and an external device, and a communication protocol followed by the communication interface is any communication protocol applicable to the technical solution of the present application, and is not specifically limited herein; the input/output interface 25 is configured to obtain external input data or output data to the outside, and a specific interface type thereof may be selected according to specific application requirements, which is not specifically limited herein.
In addition, the storage 22 is used as a carrier for resource storage, and may be a read-only memory, a random access memory, a magnetic disk or an optical disk, etc., and the resources stored thereon may include an operating system 221, a computer program 222, data 223, etc., and the storage may be a transient storage or a permanent storage.
The operating system 221 is used for managing and controlling each hardware device and the computer program 222 on the electronic device 20, so as to realize the operation and processing of the mass data 223 in the memory 22 by the processor 21, and may be Windows Server, Netware, Unix, Linux, and the like. The computer program 222 may further include a computer program that can be used to perform other specific tasks in addition to the computer program that can be used to perform the heating coal consumption determination method performed by the electronic device 20 disclosed in any of the foregoing embodiments. Data 223 may include performance parameters collected by electronic device 20, and the like.
Further, an embodiment of the present application further discloses a storage medium, where a computer program is stored in the storage medium, and when the computer program is loaded and executed by a processor, the method and the device for determining coal consumption for heating disclosed in any of the foregoing embodiments are implemented.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The method, the device, the equipment and the storage medium for determining the heating coal consumption provided by the invention are described in detail, specific examples are applied in the description to explain the principle and the implementation mode of the invention, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a take heat supply thermodynamic system simulation platform which characterized in that is applied to combined heat and power generation unit, includes:
the input interface is used for inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply demand to the simulation platform with the heat supply thermodynamic system;
the simulation model is used for acquiring the input heat supply mode, the input heat supply flow and the input unit load, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit return method;
and the output interface is used for outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform for displaying.
2. A belt heating thermodynamic system simulation platform according to claim 1, wherein the simulation model comprises a first simulation module, a second simulation module, and a third simulation module, wherein:
the first simulation module is used for carrying out simulation calculation on the first coal consumption under the pure condensing working condition according to the unit load;
the second simulation module is used for carrying out simulation calculation on the consumption of second coal under the heat supply working condition according to the heat supply mode, the heat supply flow and the unit load;
and the third simulation module is used for calculating the heating coal consumption according to the first coal consumption and the second coal consumption by simulation according to a beneficial heat return method.
3. The simulation platform of a thermal system with heat supply of claim 1, wherein the input interface is further configured to input different data combinations including the heat supply mode, the heat supply flow rate, and the unit load, determined according to different heat supply requirements, to the simulation platform of a thermal system with heat supply; and the heat supply modes in different data combinations are different, and the heat supply flow and the unit load are respectively and correspondingly the same.
4. The simulation platform of a thermal system with heat supply of claim 1, wherein the input interface is further configured to input different data combinations including the heat supply mode, the heat supply flow rate, and the unit load, determined according to different heat supply requirements, to the simulation platform of a thermal system with heat supply; and the heat supply flow in different data combinations is different, and the heat supply mode and the unit load are respectively and correspondingly the same.
5. The simulation platform with a heat supply thermal system according to claim 3 or 4, wherein the output interface is further configured to output the calculated heat supply coal consumption corresponding to each data combination to a manual interaction interface of the simulation platform with a heat supply thermal system for display, so as to determine a heat supply coal consumption influence factor according to difference data between the heat supply coal consumption.
6. A heating coal consumption determination method is applied to a cogeneration unit and comprises the following steps:
acquiring performance parameters of a cogeneration unit of a power plant, and modeling a belt heating thermodynamic system according to the performance parameters to obtain a corresponding belt heating thermodynamic system simulation platform comprising an input interface, a simulation model and an output interface;
inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply demand into the simulation platform with the heat supply thermodynamic system through the input interface;
acquiring the input heat supply mode, the input heat supply flow and the input unit load by using the simulation model, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method;
and outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform through the output interface for displaying.
7. The heating coal consumption determination method according to claim 6, further comprising:
and correcting the simulation model by using the test data of the high-precision steam turbine with the heat supply performance.
8. A heating coal consumption determination device is applied to a cogeneration unit and comprises:
the simulation platform construction module is used for acquiring performance parameters of a cogeneration unit of the power plant and modeling a belt heating thermodynamic system according to the performance parameters to obtain a corresponding belt heating thermodynamic system simulation platform comprising an input interface, a simulation model and an output interface;
the input module is used for inputting the heat supply mode, the heat supply flow and the unit load determined according to the heat supply requirement into the simulation platform of the thermal system with heat supply through the input interface;
the simulation calculation module is used for acquiring the input heat supply mode, the input heat supply flow and the input unit load by using the simulation model, and performing simulation calculation on the coal consumption under different working conditions according to the heat supply mode, the input heat supply flow and the input unit load so as to determine the corresponding heat supply coal consumption according to a benefit heat return method;
and the output module is used for outputting the calculated heat supply coal consumption to the artificial interaction interface with the heat supply thermodynamic system simulation platform for displaying through the output interface.
9. An electronic device, comprising a processor and a memory; wherein the memory is for storing a computer program that is loaded and executed by the processor to implement the heating coal consumption determination method according to claim 6 or 7.
10. A computer-readable storage medium storing computer-executable instructions which, when loaded and executed by a processor, carry out a method for determining heating coal consumption according to claim 6 or 7.
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