Coal blending combustion method and device, storage medium, electronic equipment and program product

Abstract

The invention relates to a coal blending combustion method and device, a storage medium, electronic equipment and a program product, relates to the technical field of coal electricity, and ensures the operation stability of a boiler and improves the efficiency of a coal pulverizing system on the basis of improving coal blending combustion. The method comprises the following steps: in response to an input operation of a user, determining a constraint condition of coal blending combustion of each unit in a power plant within a preset duration; according to the preset target power generation coal consumption, the preset target load and the constraint condition of each unit, coal blending combustion simulation is carried out, a target coal blending combustion strategy is obtained, and the target coal blending combustion strategy meets a preset environment-friendly emission standard. The combustion efficiency of the target coal blending combustion strategy is higher than the combustion efficiency of other preset coal blending combustion strategies in the simulation process; and controlling each unit in the power plant to carry out coal blending combustion according to the target coal blending combustion strategy.

Description

Technical Field

[0001] The present disclosure relates to the field of coal power technology, and in particular to a coal blending and combustion method, device, storage medium, electronic equipment and program product. Background Art

[0002] At present, in the process of coal blending and combustion, the selection and blending of coal types are often based solely on experience, lacking a scientific basis, which can easily lead to problems such as unstable boiler operation, reduced efficiency of the pulverizing system, and excessive environmental protection indicators. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the present disclosure provides a coal blending and combustion method, device, storage medium, electronic equipment and program product.

[0004] In order to achieve the above objectives, in a first aspect, the present disclosure provides a coal blending and combustion method, the method comprising: In response to the user's input operation, determining the constraint conditions for each unit in the power plant to perform coal blending and combustion within a preset time, the constraint conditions including a first boundary condition for constraining the pulverizing system in the unit to perform coal blending and combustion within the preset time, and a second boundary condition for constraining the boiler in the unit to perform coal blending and combustion within the preset time; According to the preset target power generation coal consumption of each unit, the preset target load and the constraint conditions, a coal blending and combustion simulation is performed to obtain a target coal blending and combustion strategy, wherein the target coal blending and combustion strategy meets the preset environmental emission standards, and the combustion efficiency of the target coal blending and combustion strategy is higher than the combustion efficiency of other preset coal blending and combustion strategies in the simulation process; According to the target coal blending and combustion strategy, each unit in the power plant is controlled to perform coal blending and combustion.

[0005] In a second aspect, the present disclosure provides a coal blending and combustion device, comprising: A response module is configured to determine, in response to an input operation of a user, a constraint condition for each unit in the power plant to perform coal blending and combustion within a preset time period, wherein the constraint condition includes a first boundary condition for constraining a pulverizing system in the unit to perform coal blending and combustion within the preset time period, and a second boundary condition for constraining a boiler in the unit to perform coal blending and combustion within the preset time period; The simulation module is configured to perform coal blending and combustion simulation according to the preset target power generation coal consumption of each unit, the preset target load and the constraint conditions to obtain a target coal blending and combustion strategy, wherein the target coal blending and combustion strategy meets the preset environmental emission standards, and the combustion efficiency of the target coal blending and combustion strategy is higher than the combustion efficiency of other preset coal blending and combustion strategies in the simulation process; The control module is configured to control the coal blending and combustion of each unit in the power plant according to the target coal blending and combustion strategy.

[0006] In a third aspect, the present disclosure provides a non-temporary computer-readable storage medium having a computer program stored thereon, which implements the method of the first aspect when executed by a processor.

[0007] In a fourth aspect, the present disclosure provides an electronic device, including: a memory having a computer program stored thereon; A processor is used to execute the computer program in the memory to implement the method of the first aspect above.

[0008] In a fifth aspect, the present disclosure provides a computer program product, including a computer program, which implements the method of the first aspect when executed by a processor.

[0009] Through the above technical scheme, in response to the user's input operation, the constraints of each unit in the power plant are determined, and the dynamic adjustment of the constraints can be realized; according to the preset target power generation coal consumption, preset target load and constraints of each unit, coal blending and combustion simulation is carried out to obtain the target coal blending and combustion strategy, so as to obtain the optimal coal blending and combustion strategy based on the constraints; according to the target coal blending and combustion strategy, the coal blending and combustion of each unit in the power plant is controlled, which ensures the stability of boiler operation on the basis of improving coal blending, and improves the efficiency of the pulverizing system to meet environmental protection emission standards.

[0010] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 It is a flow chart of a coal blending and combustion method according to an embodiment of the present disclosure.

[0012] Figure 2a is a schematic diagram showing a preset target power generation coal consumption according to an exemplary embodiment of the present disclosure.

[0013] Figure 2b is a schematic diagram showing a preset target load according to an exemplary embodiment of the present disclosure.

[0014] Figure 3a is a schematic diagram showing constraint conditions according to an exemplary embodiment of the present disclosure.

[0015] Figure 3bis another schematic diagram showing constraint conditions according to an exemplary embodiment of the present disclosure.

[0016] Figure 4 is a schematic diagram showing a target coal blending and combustion strategy according to an exemplary embodiment of the present disclosure.

[0017] Figure 5 It is a block diagram of a coal blending and combustion device according to an exemplary embodiment of the present disclosure.

[0018] Figure 6 is a block diagram of an electronic device according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0019] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0020] It should be noted that all actions of acquiring signals, information or data in the present disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the device is located and with the authorization given by the owner of the corresponding device.

[0021] As mentioned in the background technology, the existing coal blending and combustion methods have problems such as unstable boiler operation, reduced efficiency of the pulverizing system, and excessive environmental protection indicators. In addition, it cannot respond to the user's blending and combustion needs, has interaction restrictions, and is difficult to generate a coal blending and combustion strategy that meets the blending and combustion needs; it is difficult to control the accuracy and priority of the coal blending and combustion strategy, and it is cumbersome to modify and upgrade the coal blending and combustion strategy, and has poor flexibility.

[0022] In view of this, the present disclosure provides a coal blending method, device, storage medium, electronic equipment and program product, which ensure the stability of boiler operation on the basis of improving coal blending, and improve the efficiency of the pulverizing system to meet environmental emission standards.

[0023] Figure 1 The flowchart of a method for blending coal and burning is shown according to an embodiment of the present disclosure. The method can be applied to smart devices such as laptops and tablets, and the method may include the following steps: In step S101, in response to the user's input operation, the constraint conditions for each unit in the power plant to perform coal blending and combustion within a preset time are determined, and the constraint conditions include a first boundary condition for constraining the pulverizing system in the unit to perform coal blending and combustion within the preset time, and a second boundary condition for constraining the boiler in the unit to perform coal blending and combustion within the preset time; In step S102, according to the preset target power generation coal consumption of each unit, the preset target load and the constraint conditions, a coal blending and combustion simulation is performed to obtain a target coal blending and combustion strategy, wherein the target coal blending and combustion strategy meets the preset environmental emission standards, and the combustion efficiency of the target coal blending and combustion strategy is higher than the combustion efficiency of other preset coal blending and combustion strategies in the simulation process; In step S103, each unit in the power plant is controlled to perform coal blending and combustion according to the target coal blending and combustion strategy.

[0024] In the disclosed embodiment, in response to the user's input operation, the constraints of each unit in the power plant are determined, and according to the preset target power generation coal consumption, preset target load and constraints of each unit, a coal blending and combustion simulation is performed to obtain a target coal blending and combustion strategy; the simulation process combined with the preset target power generation coal consumption can accurately calculate and optimize the proportion of different types of coal, which is helpful to improve energy utilization; the simulation process combined with the preset target load can ensure that under different load demands, the power plant operates with the optimal coal type ratio, improve the stability and reliability of the power grid during the simulation process, and the formulation of the target coal blending and combustion strategy fully considers the characteristics and constraints of each unit in the power plant, so that coal resources can be reasonably allocated in different components to avoid resource waste; according to the target coal blending and combustion strategy, each unit in the power plant is controlled to perform coal blending and combustion, which ensures the stability of boiler operation on the basis of improving coal blending, and improves the efficiency of the pulverizing system to meet environmental protection emission standards.

[0025] In order to facilitate those skilled in the art to better understand the coal blending and combustion method provided by the present disclosure, the steps of the method are described in detail below.

[0026] In a feasible implementation manner, the preset target power generation coal quantity and the preset target load are determined by: Obtain the historical coal consumption and historical power generation of each unit in the power plant during the preset period of time; Determining a preset target power generation coal consumption for each unit according to the historical power generation coal consumption; According to the historical power generation, a preset target load corresponding to each unit is determined.

[0027] It is worth noting that the preset duration can be preset according to the coal blending and combustion requirements, and can be one year, one month or one week, and the present disclosure does not limit this.

[0028] For example, Figure 2aAs shown, the historical power generation coal consumption of Unit 1, Unit 2 and Unit 3 in the power plant in each month from August 2023 to August 2024 is obtained as the coal consumption of the same period last year. For each unit, its preset target power generation coal consumption for each month from August 2024 to August 2025 is determined according to its corresponding coal consumption of the same period last year, that is, the coal consumption of the current year and month.

[0029] For example, Figure 2b As shown, the historical power generation of units 1, 2, 3 and 4 in the power plant at multiple load points at different time lengths on August 30, 2023 is obtained. For each unit, the preset target load of multiple load points at different time lengths on August 30, 2024 is determined according to its historical power generation at multiple load points at different time lengths on August 30, 2023.

[0030] It is worth noting that the preset target load in the embodiments of the present disclosure can also be preset according to the coal blending and combustion requirements, and the present disclosure does not limit the specific preset method.

[0031] In the disclosed embodiment, the historical coal consumption for power generation and the historical power generation are the cumulative results of the operation of the unit under various operating conditions, have high authenticity and reliability, and can comprehensively reflect the coal consumption characteristics of the unit under different operating conditions; the preset target coal consumption for power generation is determined according to the historical coal consumption for power generation of each unit in the power plant, and the preset target load is determined according to the historical power generation, which can reduce the uncertainty and error in the subsequent simulation process, thereby reducing the number of simulations and the simulation cost.

[0032] In a feasible implementation manner, the first boundary condition includes at least one of an output threshold of the pulverizing system, upper and lower limits of calorific value, upper and lower limits of ash melting point, and coal type; The second boundary condition includes at least one of the ash content threshold, sulfur content threshold, co-firing tendency, and upper and lower limits of the front wall calorific value ratio of the boiler.

[0033] It is worth noting that the first boundary condition may also include other data involved in the coal blending and combustion process of the pulverizing system, and the second boundary condition may also include other data involved in the coal blending and combustion process of the boiler, which is not limited in the present disclosure.

[0034] Relevant constraints are determined in the disclosed implementation mode, including but not limited to the output threshold of the pulverizing system, the upper and lower limits of the calorific value, the upper and lower limits of the ash melting point, the type of coal, the ash content threshold of the boiler, the sulfur content threshold, the blending tendency, the upper and lower limits of the front wall calorific value ratio, etc. The corresponding constraints can be flexibly determined according to the actual conditions of different units, environmental protection requirements and other factors to ensure that the target coal blending and blending strategy meets specific business requirements, and the modification traces of the constraints can be retained, and the historical versions of the constraints can be quickly viewed.

[0035] In a feasible implementation manner, in response to the user's input operation, determining the constraint conditions for each unit in the power plant to perform coal blending and combustion within a preset time period includes: In response to the user's input operation, according to the input information corresponding to the input operation, the power generation demand of each unit in the power plant within a preset time period is determined, and according to the power generation demand, the first boundary condition corresponding to the pulverizing system in each unit in the power plant and the second boundary condition corresponding to the boiler in each unit are determined from a plurality of preset constraints; or, In response to the user's input operation, the first boundary condition corresponding to the pulverizing system in each of the units in the power plant and the second boundary condition corresponding to the boiler in each of the units are generated according to the input information corresponding to the input operation.

[0036] It is worth noting that when the input information corresponding to the user's input operation is the power generation plan of the power plant, the power generation demand of each unit in the power plant within the preset time is determined according to the power generation plan, and according to the power generation demand, a preset constraint condition is called from multiple preset constraints, and the preset constraint condition called is the first boundary condition and the second boundary condition.

[0037] For example, Figure 3a As shown, according to the coal blending and combustion scheme input by the user, the power generation demand of each unit in the power plant is determined, and the preset constraint conditions are called according to the power generation demand. For example, according to the coal blending and combustion scheme input by the user, the power generation demand of unit 1 is determined to include power generation coal consumption of 281.18g / kwh and load of 269mw. According to the power generation demand of unit 1, the preset pulverizing system boundary conditions and boiler boundary conditions are called.

[0038] It is worth noting that when the input information corresponding to the user's input operation is the specific value of each parameter in the constraint condition, the constraint condition of each unit in the power plant is generated.

[0039] For example, Figure 3b As shown, the boundary conditions of the pulverizing system and the boiler are generated according to the specific values ​​of the parameters in the constraint conditions input by the user.

[0040] In the embodiment of the present disclosure, stored constraints can be called according to the power generation plan input by the user, and constraints can also be generated according to the parameters input by the user. The user's blending needs can be responded to through interaction with the user, and the coal blending strategy can be simply and flexibly modified and upgraded.

[0041] In a feasible implementation manner, the coal blending and combustion simulation is performed according to the preset target power generation coal consumption, the preset target load and the constraint conditions of each unit to obtain the target coal blending and combustion strategy, including: According to the preset target coal consumption for power generation, the preset target load and the constraints of each unit, the different preset coal blending and combustion strategies of the power plant are simulated through a coal blending and combustion simulation model, and a preset coal blending and combustion strategy that meets the preset environmental emission standards and has the highest combustion efficiency is determined as the target coal blending and combustion strategy. The different preset coal blending and combustion strategies include different combinations of coal types and / or different blending rates, and the coal blending and combustion simulation model is used to simulate the different preset coal blending and combustion strategies of the power plant.

[0042] For example, according to the preset target power generation coal consumption, preset target load and the constraint conditions of each unit, the different preset coal blending and combustion strategies of the power plant are simulated through the coal blending and combustion simulation model, and the following are obtained: Figure 4 Coal blending strategy is shown.

[0043] In the disclosed embodiment, simulation is performed on different preset coal blending and combustion strategies of the power plant based on the preset target power generation coal consumption, preset target load and the constraints of each unit in the power plant, thereby ensuring the accuracy and reliability of the determined target coal blending and combustion strategy. The entire process involves fewer variables, which reduces the amount of calculation in the simulation process and shortens the simulation time, thereby improving the efficiency of determining the target coal blending and combustion strategy and reducing the cost of coal blending and combustion.

[0044] In a feasible implementation manner, the method further includes: The constraint conditions and the target coal blending and combustion strategy are respectively displayed on a display screen.

[0045] It is worth noting that in the embodiment of the present disclosure, the constraints and target coal blending and combustion strategy are displayed through a display screen, so that users can intuitively view various indicators in the coal blending and combustion process in real time, which is convenient for users to adjust various indicators in real time. The operation process is simple and the entire coal blending and combustion process is transparent.

[0046] Based on the same inventive concept, the present disclosure also provides a block diagram of a coal blending and combustion device, such as Figure 5 As shown, the coal blending and combustion device includes a response module 501, a simulation module 502 and a control module 503.

[0047] The response module 501 is configured to determine the constraint conditions for each unit in the power plant to perform coal blending and combustion within a preset time period in response to the user's input operation, wherein the constraint conditions include a first boundary condition for constraining the pulverizing system in the unit to perform coal blending and combustion within the preset time period, and a second boundary condition for constraining the boiler in the unit to perform coal blending and combustion within the preset time period; The simulation module 502 is configured to perform a coal blending and combustion simulation according to the preset target power generation coal consumption of each unit, the preset target load and the constraint conditions, and obtain a target coal blending and combustion strategy, wherein the target coal blending and combustion strategy meets the preset environmental emission standards, and the combustion efficiency of the target coal blending and combustion strategy is higher than the combustion efficiency of other preset coal blending and combustion strategies in the simulation process; The control module 503 is configured to control each unit in the power plant to perform coal blending and combustion according to the target coal blending and combustion strategy.

[0048] In the disclosed embodiment, in response to the user's input operation, the constraints of each unit in the power plant are determined, and according to the preset target power generation coal consumption, preset target load and constraints of each unit, a coal blending and combustion simulation is performed to obtain a target coal blending and combustion strategy; the simulation process combined with the preset target power generation coal consumption can accurately calculate and optimize the proportion of different types of coal, which is helpful to improve energy utilization; the simulation process combined with the preset target load can ensure that under different load demands, the power plant operates with the optimal coal type ratio, improve the stability and reliability of the power grid during the simulation process, and the formulation of the target coal blending and combustion strategy fully considers the characteristics and constraints of each unit in the power plant, so that coal resources can be reasonably allocated in different components to avoid resource waste; according to the target coal blending and combustion strategy, each unit in the power plant is controlled to perform coal blending and combustion, which ensures the stability of boiler operation on the basis of improving coal blending, and improves the efficiency of the pulverizing system to meet environmental protection emission standards.

[0049] Optionally, the simulation module 502 is configured to simulate different preset coal blending and burning strategies of the power plant through a coal blending and burning simulation model according to the preset target power generation coal consumption, preset target load and the constraints of each unit, and determine the preset coal blending and burning strategy that meets the preset environmental emission standards and has the highest combustion efficiency as the target coal blending and burning strategy. The different preset coal blending and burning strategies include different combinations of coal types and / or different blending rates, and the coal blending and burning simulation model is used to simulate different preset coal blending and burning strategies of the power plant.

[0050] Optionally, the response module 501 is configured to respond to the user's input operation, determine the power generation demand of each unit in the power plant within a preset time period according to the input information corresponding to the input operation, and determine the first boundary condition corresponding to the pulverizing system in each unit in the power plant and the second boundary condition corresponding to the boiler in each unit from a plurality of preset constraints according to the power generation demand; or, In response to the user's input operation, the first boundary condition corresponding to the pulverizing system in each of the units in the power plant and the second boundary condition corresponding to the boiler in each of the units are generated according to the input information corresponding to the input operation.

[0051] Optionally, the simulation module 502 is configured to obtain the historical coal consumption and historical power generation of each unit in the power plant during the preset period of time; Determining a preset target power generation coal consumption for each unit according to the historical power generation coal consumption; According to the historical power generation, a preset target load corresponding to each unit is determined.

[0052] Optionally, the first boundary condition includes at least one of an output threshold of the pulverizing system, upper and lower limits of calorific value, upper and lower limits of ash melting point, and coal type; The second boundary condition includes at least one of the ash content threshold, sulfur content threshold, co-firing tendency, and upper and lower limits of the front wall calorific value ratio of the boiler.

[0053] Optionally, the control module 503 is configured to display the constraint conditions and the target coal blending strategy respectively through a display screen.

[0054] Regarding the coal blending and combustion device in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment of the method, and will not be elaborated here.

[0055] Based on the same inventive concept, the present disclosure also provides an electronic device, including: a memory having a computer program stored thereon; A processor is used to execute the computer program in the memory to implement the above-mentioned coal blending and combustion method.

[0056] In the disclosed embodiment, in response to the user's input operation, the constraints of each unit in the power plant are determined, and according to the preset target power generation coal consumption, preset target load and constraints of each unit, a coal blending and combustion simulation is performed to obtain a target coal blending and combustion strategy; the simulation process combined with the preset target power generation coal consumption can accurately calculate and optimize the proportion of different types of coal, which is helpful to improve energy utilization; the simulation process combined with the preset target load can ensure that under different load demands, the power plant operates with the optimal coal type ratio, improve the stability and reliability of the power grid during the simulation process, and the formulation of the target coal blending and combustion strategy fully considers the characteristics and constraints of each unit in the power plant, so that coal resources can be reasonably allocated in different components to avoid resource waste; according to the target coal blending and combustion strategy, each unit in the power plant is controlled to perform coal blending and combustion, which ensures the stability of boiler operation on the basis of improving coal blending, and improves the efficiency of the pulverizing system to meet environmental protection emission standards.

[0057] Figure 6 FIG. 6 is a block diagram of an electronic device 600 according to an exemplary embodiment. Figure 6As shown, the electronic device 600 may include: a processor 601 , a memory 602 . The electronic device 600 may also include one or more of a multimedia component 603 , an input / output (I / O) interface 604 , and a communication component 605 .

[0058] The processor 601 is used to control the overall operation of the electronic device 600 to complete all or part of the steps in the above-mentioned coal blending and combustion method. The memory 602 is used to store various types of data to support the operation of the electronic device 600, and these data may include, for example, instructions for any application or method operated on the electronic device 600, and application-related data, such as the first boundary condition, the second boundary condition, the preset target power generation coal consumption, the preset target load, etc.

[0059] The memory 602 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0060] The multimedia component 603 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone, and the microphone is used to receive external audio signals. The received audio signal may be further stored in the memory 602 or sent via the communication component 605. The audio component also includes at least one speaker for outputting audio signals.

[0061] The I / O interface 604 provides an interface between the processor 601 and other interface modules, which may be a keyboard, a mouse, buttons, etc. These buttons may be virtual buttons or physical buttons.

[0062] The communication component 605 is used for wired or wireless communication between the electronic device 600 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, is not limited here. Therefore, the corresponding communication component 605 may include: Wi-Fi module, Bluetooth module, NFC module, etc.

[0063] In an exemplary embodiment, the electronic device 600 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned coal blending and combustion method.

[0064] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the above-mentioned coal blending and combustion method are implemented. For example, the computer-readable storage medium can be the above-mentioned memory 602 including program instructions, and the above-mentioned program instructions can be executed by the processor 601 of the electronic device 600 to complete the above-mentioned coal blending and combustion method.

[0065] In another exemplary embodiment, a computer program product is also provided. The computer program product includes a computer program that can be executed by a programmable device. The computer program has a code portion for executing the above-mentioned coal blending and combustion method when executed by the programmable device.

[0066] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0067] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0068] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A method for blending and burning coal, characterized in that: The method comprises: In response to the user's input operation, determining the constraint conditions for each unit in the power plant to perform coal blending and combustion within a preset time, the constraint conditions including a first boundary condition for constraining the pulverizing system in the unit to perform coal blending and combustion within the preset time, and a second boundary condition for constraining the boiler in the unit to perform coal blending and combustion within the preset time; According to the preset target power generation coal consumption of each unit, the preset target load and the constraint conditions, a coal blending and combustion simulation is performed to obtain a target coal blending and combustion strategy, wherein the target coal blending and combustion strategy meets the preset environmental emission standards, and the combustion efficiency of the target coal blending and combustion strategy is higher than the combustion efficiency of other preset coal blending and combustion strategies in the simulation process; According to the target coal blending and combustion strategy, each unit in the power plant is controlled to perform coal blending and combustion.

2. The coal blending and combustion method according to claim 1, characterized in that: The method of performing coal blending and combustion simulation according to the preset target power generation coal consumption of each unit, the preset target load and the constraint conditions to obtain the target coal blending and combustion strategy includes: According to the preset target coal consumption for power generation, the preset target load and the constraints of each unit, the different preset coal blending and combustion strategies of the power plant are simulated through a coal blending and combustion simulation model, and a preset coal blending and combustion strategy that meets the preset environmental emission standards and has the highest combustion efficiency is determined as the target coal blending and combustion strategy. The different preset coal blending and combustion strategies include different combinations of coal types and / or different blending rates, and the coal blending and combustion simulation model is used to simulate the different preset coal blending and combustion strategies of the power plant.

3. The coal blending and combustion method according to claim 1, characterized in that: The step of determining the constraint conditions for coal blending and combustion of each unit in the power plant within a preset time period in response to the user's input operation includes: In response to the user's input operation, according to the input information corresponding to the input operation, the power generation demand of each unit in the power plant within a preset time period is determined, and according to the power generation demand, the first boundary condition corresponding to the pulverizing system in each unit in the power plant and the second boundary condition corresponding to the boiler in each unit are determined from a plurality of preset constraints; or, In response to the user's input operation, the first boundary condition corresponding to the pulverizing system in each of the units in the power plant and the second boundary condition corresponding to the boiler in each of the units are generated according to the input information corresponding to the input operation.

4. The coal blending and combustion method according to claim 1, characterized in that: The preset target power generation coal quantity and the preset target load are determined in the following manner: Obtain the historical coal consumption and historical power generation of each unit in the power plant during the preset period of time; Determining a preset target power generation coal consumption for each unit according to the historical power generation coal consumption; According to the historical power generation, a preset target load corresponding to each unit is determined.

5. The coal blending and combustion method according to any one of claims 1 to 4, characterized in that: The first boundary condition includes at least one of the output threshold of the pulverizing system, the upper and lower limits of the calorific value, the upper and lower limits of the ash melting point, and the type of coal; The second boundary condition includes at least one of the ash content threshold, sulfur content threshold, co-firing tendency, and upper and lower limits of the front wall calorific value ratio of the boiler.

6. The coal blending and combustion method according to any one of claims 1 to 4, characterized in that: The method further comprises: The constraint conditions and the target coal blending and combustion strategy are respectively displayed on a display screen.

7. A coal blending and combustion device, characterized in that: include: A response module is configured to determine, in response to an input operation of a user, a constraint condition for each unit in the power plant to perform coal blending and combustion within a preset time period, wherein the constraint condition includes a first boundary condition for constraining a pulverizing system in the unit to perform coal blending and combustion within the preset time period, and a second boundary condition for constraining a boiler in the unit to perform coal blending and combustion within the preset time period; The simulation module is configured to perform coal blending and combustion simulation according to the preset target power generation coal consumption of each unit, the preset target load and the constraint conditions to obtain a target coal blending and combustion strategy, wherein the target coal blending and combustion strategy meets the preset environmental emission standards, and the combustion efficiency of the target coal blending and combustion strategy is higher than the combustion efficiency of other preset coal blending and combustion strategies in the simulation process; The control module is configured to control the coal blending and combustion of each unit in the power plant according to the target coal blending and combustion strategy.

8. The coal blending and combustion device according to claim 7, characterized in that: The simulation module is configured to simulate the different preset coal blending and combustion strategies of the power plant through a coal blending and combustion simulation model according to the preset target power generation coal consumption of each unit, the preset target load and the constraints, and determine the preset coal blending and combustion strategy that meets the preset environmental emission standards and has the highest combustion efficiency as the target coal blending and combustion strategy. The different preset coal blending and combustion strategies include different combinations of coal types and / or different blending rates, and the coal blending and combustion simulation model is used to simulate the different preset coal blending and combustion strategies of the power plant.

9. The coal blending and combustion device according to claim 7, characterized in that: The response module is configured to respond to the user's input operation, determine the power generation demand of each unit in the power plant within a preset time period according to the input information corresponding to the input operation, and determine the first boundary condition corresponding to the pulverizing system in each unit in the power plant and the second boundary condition corresponding to the boiler in each unit from a plurality of preset constraints according to the power generation demand; or, In response to the user's input operation, the first boundary condition corresponding to the pulverizing system in each of the units in the power plant and the second boundary condition corresponding to the boiler in each of the units are generated according to the input information corresponding to the input operation.

10. The coal blending and combustion device according to claim 7, characterized in that: The simulation module is configured to obtain the historical coal consumption and historical power generation of each unit in the power plant during the preset period of time; Determining a preset target power generation coal consumption for each unit according to the historical power generation coal consumption; According to the historical power generation, a preset target load corresponding to each unit is determined.

11. The coal blending and combustion device according to any one of claims 7 to 10, characterized in that: The first boundary condition includes at least one of the output threshold of the pulverizing system, the upper and lower limits of the calorific value, the upper and lower limits of the ash melting point, and the type of coal; The second boundary condition includes at least one of the ash content threshold, sulfur content threshold, co-firing tendency, and upper and lower limits of the front wall calorific value ratio of the boiler.

12. The coal blending and combustion device according to any one of claims 7 to 10, characterized in that: The control module is configured to display the constraint conditions and the target coal blending and combustion strategy through a display screen.

13. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

14. An electronic device, characterized in that: include: a memory having a computer program stored thereon; A processor, configured to execute the computer program in the memory to implement the method according to any one of claims 1 to 6.

15. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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