Thermal power plant energy saving method and system based on data analysis

Abstract

The invention discloses a thermal power plant energy saving method and system based on data analysis, and relates to the technical field of data analysis processing, and the method comprises the steps: carrying out the data analysis processing of the real-time heat energy conversion proportion of a steam turbine, and determining whether a new steam turbine needs to be replaced for heat energy conversion or not. The method comprises the following steps: performing data analysis and calculation on historical data of a thermal power plant, determining a real-time heat energy conversion ratio of a steam turbine, performing first data comparison processing on the real-time heat energy conversion ratio of the steam turbine, determining a first real-time state and a second real-time state of the steam turbine, and finally determining the real-time state of the steam turbine. The first real-time state of the steam turbine is verified through the to-be-executed task of the thermal power plant, whether a new steam turbine needs to be replaced for heat energy conversion or not is determined, and the real-time state of the steam turbine is determined by analyzing and judging the historical data of the thermal power plant in the mode. The situation that a large amount of heat energy can only be converted into less mechanical energy is avoided, fuel is saved, and the power generation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of technical data analysis and processing, and particularly to an energy-saving method and system for thermal power plants based on data analysis. Background Art

[0002] A fossil-fuel power station, abbreviated as a thermal power plant, is a factory that uses combustibles (such as coal) as fuel to produce electric energy. The basic production process of a thermal power plant is as follows: the fuel heats water to generate steam during combustion, converting the chemical energy of the fuel into heat energy. The steam pressure drives the steam turbine to rotate, converting the heat energy into mechanical energy. Then, the steam turbine drives the generator to rotate, converting the mechanical energy into electric energy. Thermal power plants are mainly divided into steam power plants, gas turbine power plants, and internal combustion engine power plants.

[0003] With the long-term use of the steam turbine, the proportion of mechanical energy converted from heat energy by the steam turbine will decrease. If the state of the steam turbine is not monitored, a large amount of heat energy can only be converted into less mechanical energy, resulting in waste of fuel and increased power generation costs. Summary of the Invention

[0004] To solve the above technical problems, an energy-saving method and system for thermal power plants based on data analysis are provided. The technical solution solves the problem that if the state of the steam turbine is not monitored, a large amount of heat energy can only be converted into less mechanical energy, resulting in waste of fuel and increased power generation costs as mentioned in the above background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An energy-saving method for thermal power plants based on data analysis, comprising: Obtaining historical data of the thermal power plant, and based on an intelligent analysis terminal, performing data analysis and processing on the historical data of the thermal power plant to determine the first heat energy conversion ratio of the steam turbine; Based on the intelligent analysis terminal, performing calculation and analysis processing on the first heat energy conversion ratio of the steam turbine and the historical data of the thermal power plant to determine the real-time heat energy conversion ratio of the steam turbine; Based on the intelligent analysis terminal, performing data analysis and processing on the real-time heat energy conversion ratio of the steam turbine to determine whether a new steam turbine needs to be replaced for heat energy conversion.

[0006] Preferably, the step of obtaining historical data of the thermal power plant, and based on an intelligent analysis terminal, performing data analysis and processing on the historical data of the thermal power plant to determine the first heat energy conversion ratio of the steam turbine specifically includes the following steps: Based on the intelligent analysis terminal, performing data reading processing on the database system of the thermal power plant to obtain historical data of the thermal power plant; Based on an intelligent analysis terminal, classify and process the historical data of a thermal power plant by taking the power generation task as a feature to obtain data related to the power generation task of the thermal power plant; Based on an intelligent analysis terminal, perform data reading and processing on the data related to the power generation task of the thermal power plant to obtain the first data related to the power generation task of the thermal power plant; Based on an intelligent analysis terminal, perform calculation and analysis processing on the first data related to the power generation task of the thermal power plant to determine the first thermal energy conversion ratio of the steam turbine.

[0007] Preferably, the step of performing calculation and analysis processing on the first data related to the power generation task of the thermal power plant based on an intelligent analysis terminal to determine the first thermal energy conversion ratio of the steam turbine specifically includes the following steps: Based on an intelligent analysis terminal, perform data reading and processing on the data related to the first power generation task of the thermal power plant to obtain the coal consumption of the first power generation task and the mechanical energy generation amount of the steam turbine of the first power generation task; Based on an intelligent analysis terminal, perform data reading and processing on the database system of the thermal power plant to obtain the calorific value of unit coal; Based on an intelligent analysis terminal, perform calculation processing on the coal consumption of the first power generation task and the calorific value of unit coal to determine the total coal heat generation of the first power generation task; Based on an intelligent analysis terminal, perform calculation processing on the total coal heat generation of the first power generation task and the mechanical energy generation amount of the steam turbine of the first power generation task to obtain the first thermal energy conversion ratio of the steam turbine.

[0008] Preferably, the step of performing calculation and analysis processing on the first thermal energy conversion ratio of the steam turbine and the historical data of the thermal power plant based on an intelligent analysis terminal to determine the real-time thermal energy conversion ratio of the steam turbine specifically includes the following steps: Based on an intelligent analysis terminal, perform data reading and processing on the data related to the power generation task of the thermal power plant to obtain the latest data related to the power generation task of the thermal power plant; Based on an intelligent analysis terminal, perform data reading and processing on the latest data related to the power generation task of the thermal power plant to obtain the coal consumption of the latest power generation task and the mechanical energy generation amount of the steam turbine of the latest power generation task; Based on an intelligent analysis terminal, perform calculation processing on the coal consumption of the latest power generation task and the calorific value of unit coal to obtain the total coal heat generation of the latest task; Based on an intelligent analysis terminal, perform calculation processing on the total coal heat generation of the latest task and the mechanical energy generation amount of the steam turbine of the latest power generation task to determine the second thermal energy conversion ratio of the steam turbine; Based on an intelligent analysis terminal, perform calculation and analysis on the first thermal energy conversion ratio of the steam turbine and the second thermal energy conversion ratio of the steam turbine to determine the real-time thermal energy conversion ratio of the steam turbine.

[0009] Preferably, the specific steps for calculating and analyzing the first thermal energy conversion ratio and the second thermal energy conversion ratio of the steam turbine based on the intelligent analysis terminal to determine the real-time thermal energy conversion ratio of the steam turbine are as follows: Based on the intelligent analysis terminal, read and process the data related to the power generation tasks of the thermal power plant to obtain the power generation duration of each power generation task of the thermal power plant; Based on the intelligent analysis terminal, perform a summation calculation on the power generation duration of each power generation task of the thermal power plant to obtain the total power generation duration of the thermal power plant; Based on the intelligent analysis terminal, perform a difference calculation on the first thermal energy conversion ratio and the second thermal energy conversion ratio of the steam turbine to determine the degradation value of the thermal energy conversion ratio of the steam turbine; Based on the intelligent analysis terminal, perform a calculation process on the degradation value of the thermal energy conversion ratio of the steam turbine and the total power generation duration of the thermal power plant to obtain the degradation value of the thermal energy conversion ratio of the steam turbine per unit time; Based on the intelligent analysis terminal, perform a summation calculation process on the degradation value of the thermal energy conversion ratio of the steam turbine per unit time and the second thermal energy conversion ratio of the steam turbine to determine the real-time thermal energy conversion ratio of the steam turbine.

[0010] Preferably, the specific steps for analyzing the data of the real-time thermal energy conversion ratio of the steam turbine based on the intelligent analysis terminal to determine whether a new steam turbine needs to be replaced for thermal energy conversion are as follows: Based on the intelligent analysis terminal, perform a comparative analysis on the real-time thermal energy conversion ratio of the steam turbine to determine the real-time state of the steam turbine; wherein, the real-time state of the steam turbine is specifically any one of the first real-time state and the second real-time state of the steam turbine; If the real-time state of the steam turbine is the first real-time state, based on the intelligent analysis terminal, perform a state verification process on the first real-time state of the steam turbine to determine whether a new steam turbine needs to be replaced for thermal energy conversion; If the real-time state of the steam turbine is the second real-time state, replace the steam turbine with a new steam turbine for thermal energy conversion.

[0011] Preferably, the specific steps for performing a comparative analysis on the real-time thermal energy conversion ratio of the steam turbine based on the intelligent analysis terminal to determine the real-time state of the steam turbine are as follows: Based on the intelligent analysis terminal, perform a judgment process on the real-time thermal energy conversion ratio of the steam turbine and the set thermal energy conversion ratio threshold; If the real-time thermal energy conversion ratio of the steam turbine is greater than the set thermal energy conversion ratio threshold, output the first real-time state of the steam turbine; If the real-time thermal energy conversion ratio of the steam turbine is less than or equal to the set thermal energy conversion ratio threshold, output the second real-time state of the steam turbine.

[0012] Preferably, the intelligent analysis terminal is used to perform a status verification process on the first real-time status of the steam turbine to determine whether a new steam turbine needs to be replaced for heat energy conversion. The specific steps are as follows: Based on the intelligent analysis terminal, perform data reading processing on the task list of the thermal power plant to obtain the tasks to be executed by the thermal power plant; Based on the intelligent analysis terminal, perform data reading processing on the tasks to be executed by the thermal power plant to obtain the coal consumption of the tasks to be executed; Based on the intelligent analysis terminal, perform information matching processing on the data related to the power generation tasks of the thermal power plant with the coal consumption of the tasks to be executed as a feature to determine the combustion duration corresponding to the coal consumption of the tasks to be executed; Based on the intelligent analysis terminal, perform calculation processing on the combustion duration corresponding to the coal consumption of the tasks to be executed and the degradation value of the heat energy conversion ratio of the steam turbine per unit time to determine the degradation value of the heat energy conversion ratio of the steam turbine for completing the tasks to be executed; Based on the intelligent analysis terminal, perform calculation and analysis processing on the degradation value of the heat energy conversion ratio of the steam turbine for completing the tasks to be executed and the second heat energy conversion ratio of the steam turbine to determine whether a new steam turbine needs to be replaced for heat energy conversion.

[0013] Preferably, the intelligent analysis terminal is used to perform calculation and analysis processing on the degradation value of the heat energy conversion ratio of the steam turbine for completing the tasks to be executed and the second heat energy conversion ratio of the steam turbine to determine whether a new steam turbine needs to be replaced for heat energy conversion. The specific steps are as follows: Based on the intelligent analysis terminal, perform summation calculation processing on the degradation value of the heat energy conversion ratio of the steam turbine for completing the tasks to be executed and the second heat energy conversion ratio of the steam turbine to determine the heat energy conversion ratio of the steam turbine for completing the tasks to be executed; Based on the intelligent analysis terminal, perform judgment processing on the heat energy conversion ratio of the steam turbine for completing the tasks to be executed and the set heat energy conversion ratio threshold; If the heat energy conversion ratio of the steam turbine for completing the tasks to be executed is greater than or equal to the set heat energy conversion ratio threshold, the heat energy conversion ratio of the steam turbine meets the standard, and there is no need to replace a new steam turbine for heat energy conversion; If the heat energy conversion ratio of the steam turbine for completing the tasks to be executed is less than the set heat energy conversion ratio threshold, the heat energy conversion ratio of the steam turbine does not meet the standard, and the steam turbine will be replaced with a new steam turbine for heat energy conversion.

[0014] Furthermore, a thermal power plant energy-saving system based on data analysis is proposed, which is used to implement a thermal power plant energy-saving method based on data analysis as described above, including: Intelligent analysis terminal, which is used to control each module to perform data calculation and processing on the data related to the power generation task of the thermal power plant, and determine the real-time thermal energy conversion ratio of the steam turbine; the intelligent analysis terminal is used to control each module to perform state analysis processing, data calculation processing and data comparison processing on the real-time thermal energy conversion ratio of the steam turbine and the tasks to be executed by the thermal power plant, and determine whether a new steam turbine needs to be replaced for thermal energy conversion; the intelligent analysis terminal is used to control data transmission and information interaction between each module; Database system, which is used to store the historical data of the thermal power plant; Data classification module, which is used to classify the historical data of the thermal power plant to obtain the data related to the power generation task of the thermal power plant; First data calculation module, which is used to perform data calculation and processing on the data related to the power generation task of the power plant to determine the first thermal energy conversion ratio and the second thermal energy conversion ratio of the steam turbine; Second data calculation module, which is used to perform data calculation and processing on the first thermal energy conversion ratio and the second thermal energy conversion ratio of the steam turbine to determine the real-time thermal energy conversion ratio of the steam turbine; Status determination module, which is used to perform judgment processing on the real-time thermal energy conversion ratio of the steam turbine to determine the real-time status of the steam turbine; First status analysis module, which performs data calculation and processing and data comparison processing on the tasks to be executed by the thermal power plant and the second thermal energy conversion ratio of the steam turbine according to the first real-time status of the steam turbine to determine whether a new steam turbine needs to be replaced for thermal energy conversion; Second status analysis module, which replaces a new steam turbine for thermal energy conversion according to the second real-time status of the steam turbine.

[0015] Compared with the prior art, the present invention provides a thermal power plant energy-saving method and system based on data analysis, which has the following beneficial effects: The present invention first performs data analysis and calculation on the historical data of the thermal power plant to determine the real-time thermal energy conversion ratio of the steam turbine, and then performs the first data comparison processing on the real-time thermal energy conversion ratio of the steam turbine to determine the first real-time status and the second real-time status of the steam turbine. Finally, the first real-time status of the steam turbine is verified by the tasks to be executed by the thermal power plant to determine whether a new steam turbine needs to be replaced for thermal energy conversion. By analyzing and judging the historical data of the thermal power plant in the above manner, the real-time status of the steam turbine is determined, avoiding the situation where a large amount of thermal energy can only be converted into less mechanical energy, saving fuel and reducing the power generation cost. Description of the Drawings

[0016] Figure 1 It is a schematic flow chart of steps S100 - S300 in an energy - saving method for thermal power plants based on data analysis proposed by the present invention; Figure 2 It is a structural block diagram of an energy - saving system for thermal power plants based on data analysis proposed by the present invention. Specific embodiments

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0018] Referring to Figure 1 As shown, an energy - saving method for thermal power plants based on data analysis includes: S100. Obtain the historical data of the thermal power plant, and based on the intelligent analysis terminal, perform data analysis and processing on the historical data of the thermal power plant to determine the first thermal - energy conversion ratio of the steam turbine; S200. Based on the intelligent analysis terminal, perform calculation and analysis processing on the first thermal - energy conversion ratio of the steam turbine and the historical data of the thermal power plant to determine the real - time thermal - energy conversion ratio of the steam turbine; S300. Based on the intelligent analysis terminal, perform data analysis and processing on the real - time thermal - energy conversion ratio of the steam turbine to determine whether a new steam turbine needs to be replaced for thermal - energy conversion; Those skilled in the art can understand that as the steam turbine is used for a long time, the ratio of converting thermal energy into mechanical energy by the steam turbine will decrease. However, the steam turbine cannot be replaced frequently because the cost of the steam turbine is greater than the value of the fuel. Therefore, only when the thermal - energy conversion ratio of the steam turbine drops to a certain extent is the steam turbine replaced. If the state of the steam turbine is not monitored, when the steam turbine can only convert a large amount of thermal energy into a small amount of mechanical energy, it will cause waste of fuel and increase the power - generation cost. Therefore, by performing data calculation and analysis on the historical data of the thermal power plant to determine the real - time state of the steam turbine, when the real - time state of the steam turbine does not meet the standard, a new steam turbine is replaced for thermal - energy conversion, saving fuel and reducing the power - generation cost at the same time. Embodiment

[0019] S100. Obtain the historical data of the thermal power plant, and based on the intelligent analysis terminal, performing data analysis and processing on the historical data of the thermal power plant to determine the first thermal - energy conversion ratio of the steam turbine specifically includes the following steps: S101. Based on the intelligent analysis terminal, perform data - reading processing on the database system of the thermal power plant to obtain the historical data of the thermal power plant; S102. Based on the intelligent analysis terminal, classify and process the historical data of the thermal power plant with the power generation task as the feature to obtain the data related to the power generation task of the thermal power plant; S103. Based on the intelligent analysis terminal, perform data reading and processing on the data related to the power generation task of the thermal power plant to obtain the first data related to the power generation task of the thermal power plant; S104. Based on the intelligent analysis terminal, perform calculation and analysis processing on the first data related to the power generation task of the thermal power plant to determine the first thermal energy conversion ratio of the steam turbine; It can be understood that the first power generation task of the thermal power plant is when the thermal energy conversion ratio of the steam turbine is the largest. In order to determine the degradation value of the thermal energy conversion ratio of the steam turbine, it is necessary to determine the initial thermal energy conversion ratio of the steam turbine (i.e., the first thermal energy conversion ratio of the steam turbine); Among them, S104. Based on the intelligent analysis terminal, perform calculation and analysis processing on the first data related to the power generation task of the thermal power plant to determine the first thermal energy conversion ratio of the steam turbine specifically includes the following steps: S1041. Based on the intelligent analysis terminal, perform data reading and processing on the first data related to the power generation task of the thermal power plant to obtain the coal consumption of the first power generation task and the mechanical energy generation amount of the steam turbine of the first power generation task; S1042. Based on the intelligent analysis terminal, perform data reading and processing on the database system of the thermal power plant to obtain the calorific value of unit coal; S1043. Based on the intelligent analysis terminal, perform calculation processing on the coal consumption of the first power generation task and the calorific value of unit coal to determine the total coal calorific value of the first power generation task; S1044. Based on the intelligent analysis terminal, perform calculation processing on the total coal calorific value of the first power generation task and the mechanical energy generation amount of the steam turbine of the first power generation task to obtain the first thermal energy conversion ratio of the steam turbine; It can be understood that the steam turbine converts thermal energy into mechanical energy. To obtain the initial thermal energy conversion ratio of the steam turbine, it is necessary to obtain the total coal calorific value of the first power generation task and the mechanical energy generation amount of the steam turbine of the first power generation task. Then, perform a quotient calculation on the total coal calorific value of the first power generation task and the mechanical energy generation amount of the steam turbine of the first power generation task to obtain the initial thermal energy conversion ratio of the steam turbine. Embodiment

[0020] S200. Based on the intelligent analysis terminal, perform calculation and analysis processing on the first thermal energy conversion ratio of the steam turbine and the historical data of the thermal power plant to determine the real-time thermal energy conversion ratio of the steam turbine specifically includes the following steps: S201. Based on the intelligent analysis terminal, perform data reading and processing on the data related to the power generation task of the thermal power plant to obtain the latest data related to the power generation task of the thermal power plant; S202. Based on the intelligent analysis terminal, read and process the data related to the latest power generation task of the thermal power plant to obtain the coal consumption of the latest power generation task and the mechanical energy generation of the steam turbine of the latest power generation task; S203. Based on the intelligent analysis terminal, calculate and process the coal consumption of the latest power generation task and the calorific value of unit coal to obtain the total coal heat generation of the latest task; S204. Based on the intelligent analysis terminal, calculate and process the total coal heat generation of the latest task and the mechanical energy generation of the steam turbine of the latest power generation task to determine the second heat energy conversion ratio of the steam turbine; S205. Based on the intelligent analysis terminal, calculate and analyze the first heat energy conversion ratio and the second heat energy conversion ratio of the steam turbine to determine the real-time heat energy conversion ratio of the steam turbine; It can be understood that the real-time heat energy conversion ratio of the steam turbine cannot be obtained only by relying on the first heat energy conversion ratio of the steam turbine. It is necessary to find another piece of data related to the heat energy conversion ratio of the steam turbine. Therefore, the data related to the latest power generation task of the thermal power plant is introduced. The data related to the latest power generation task of the thermal power plant is the latest completed power generation task of the thermal power plant, and after this power generation task is the task to be executed by the thermal power plant. Therefore, calculate and analyze the data related to the latest power generation task of the thermal power plant to determine the second heat energy conversion ratio of the steam turbine. Finally, by calculating and analyzing the first heat energy conversion ratio and the second heat energy conversion ratio of the steam turbine, the real-time heat energy conversion ratio of the steam turbine can be determined; Among them, S205. Based on the intelligent analysis terminal, calculate and analyze the first heat energy conversion ratio and the second heat energy conversion ratio of the steam turbine to determine the real-time heat energy conversion ratio of the steam turbine specifically includes the following steps: S2051. Based on the intelligent analysis terminal, read and process the data related to the power generation task of the thermal power plant to obtain the power generation duration of each power generation task of the thermal power plant; S2052. Based on the intelligent analysis terminal, perform a summation calculation on the power generation duration of each power generation task of the thermal power plant to obtain the total power generation duration of the thermal power plant; S2053. Based on the intelligent analysis terminal, perform a difference calculation on the first heat energy conversion ratio and the second heat energy conversion ratio of the steam turbine to determine the degradation value of the heat energy conversion ratio of the steam turbine; S2054. Based on the intelligent analysis terminal, calculate and process the degradation value of the heat energy conversion ratio of the steam turbine and the total power generation duration of the thermal power plant to obtain the degradation value of the heat energy conversion ratio of the steam turbine per unit time; S2055. Based on the intelligent analysis terminal, perform a summation calculation on the degradation value of the heat energy conversion ratio of the steam turbine per unit time and the second heat energy conversion ratio of the steam turbine to determine the real-time heat energy conversion ratio of the steam turbine; It is understandable that after a steam turbine is produced, it will degenerate. However, the degeneration of the steam turbine mainly occurs during use, and the degeneration during idleness can be ignored. Therefore, by calculating the difference between the first heat energy conversion ratio and the second heat energy conversion ratio of the steam turbine based on the total power generation duration of the thermal power plant, the degeneration value of the steam turbine during use (i.e., the degeneration value of the heat energy conversion ratio of the steam turbine per unit time) can be obtained. Subsequently, only by summing up the degeneration value of the heat energy conversion ratio of the steam turbine per unit time and the second heat energy conversion ratio of the steam turbine can the heat energy conversion ratio of the steam turbine corresponding to the task to be executed by the thermal power plant be determined. Embodiment

[0021] S300. Based on the intelligent analysis terminal, perform data analysis and processing on the real-time heat energy conversion ratio of the steam turbine to determine whether a new steam turbine needs to be replaced for heat energy conversion. The specific steps are as follows: S301. Based on the intelligent analysis terminal, perform a comparative analysis on the real-time heat energy conversion ratio of the steam turbine to determine the real-time state of the steam turbine; wherein, the real-time state of the steam turbine is specifically any one of the first real-time state and the second real-time state of the steam turbine. S302. If the real-time state of the steam turbine is the first real-time state, based on the intelligent analysis terminal, perform state verification processing on the first real-time state of the steam turbine to determine whether a new steam turbine needs to be replaced for heat energy conversion. S303. If the real-time state of the steam turbine is the second real-time state, replace the steam turbine with a new steam turbine for heat energy conversion. Among them, S301. Based on the intelligent analysis terminal, perform a comparative analysis on the real-time heat energy conversion ratio of the steam turbine to determine the real-time state of the steam turbine. The specific steps are as follows: S3011. Based on the intelligent analysis terminal, perform a judgment process on the real-time heat energy conversion ratio of the steam turbine and the set heat energy conversion ratio threshold. S3012. If the real-time heat energy conversion ratio of the steam turbine is greater than the set heat energy conversion ratio threshold, output the first real-time state of the steam turbine. S3013. If the real-time heat energy conversion ratio of the steam turbine is less than or equal to the set heat energy conversion ratio threshold, output the second real-time state of the steam turbine. It is understandable that when the heat energy conversion ratio of the steam turbine drops to a certain level, even if a large amount of heat energy is supplied to the steam turbine, only a small amount of mechanical energy can be obtained. In this state, the steam turbine will cause waste of fuel and increase the power generation cost. Therefore, by comparing and judging the real-time heat energy conversion ratio of the steam turbine, it is determined whether the state of the steam turbine meets the standard. If it does not meet the standard, the steam turbine needs to be replaced. Among them, in S302, based on the intelligent analysis terminal, perform a status verification process on the first real-time state of the steam turbine to determine whether a new steam turbine needs to be replaced for thermal energy conversion, which specifically includes the following steps: S3021: Based on the intelligent analysis terminal, perform data reading processing on the task list of the thermal power plant to obtain the tasks to be executed by the thermal power plant; S3022: Based on the intelligent analysis terminal, perform data reading processing on the tasks to be executed by the thermal power plant to obtain the coal consumption of the tasks to be executed; S3023: Based on the intelligent analysis terminal, perform information matching processing on the data related to the power generation tasks of the thermal power plant with the coal consumption of the tasks to be executed as a feature to determine the combustion duration corresponding to the coal consumption of the tasks to be executed; S3024: Based on the intelligent analysis terminal, perform calculation processing on the combustion duration corresponding to the coal consumption of the tasks to be executed and the degradation value of the thermal energy conversion ratio of the steam turbine per unit time to determine the degradation value of the thermal energy conversion ratio of the steam turbine for completing the tasks to be executed; S3025: Based on the intelligent analysis terminal, perform calculation and analysis processing on the degradation value of the thermal energy conversion ratio of the steam turbine for completing the tasks to be executed and the second thermal energy conversion ratio of the steam turbine to determine whether a new steam turbine needs to be replaced for thermal energy conversion; It can be understood that even if the state of the steam turbine is the first real-time state, it cannot guarantee that there will be no coal waste. Because the power generation task of the thermal power plant is a continuous process, even if the real-time thermal energy conversion ratio of the steam turbine meets the standard, it cannot guarantee that the steam turbine will not cause coal waste during the power generation process. Because when the steam turbine converts thermal energy, the steam turbine will degenerate, so the real-time thermal energy conversion ratio of the steam turbine will decrease. When the real-time thermal energy conversion ratio of the steam turbine does not meet the standard during the power generation task, since the power generation task is being executed and the steam turbine cannot be replaced, there will be a situation where a large amount of thermal energy can only be converted into a small amount of mechanical energy, which will cause coal waste and increase the power generation cost at the same time.

[0022] Among them, in S3025, based on the intelligent analysis terminal, perform calculation and analysis processing on the degradation value of the thermal energy conversion ratio of the steam turbine for completing the tasks to be executed and the second thermal energy conversion ratio of the steam turbine to determine whether a new steam turbine needs to be replaced for thermal energy conversion, which specifically includes the following steps: S30251: Based on the intelligent analysis terminal, perform summation calculation processing on the degradation value of the thermal energy conversion ratio of the steam turbine for completing the tasks to be executed and the second thermal energy conversion ratio of the steam turbine to determine the thermal energy conversion ratio of the steam turbine for completing the tasks to be executed; S30252: Based on the intelligent analysis terminal, perform judgment processing on the thermal energy conversion ratio of the steam turbine for completing the tasks to be executed and the set thermal energy conversion ratio threshold; S30253. If the thermal energy conversion ratio of the steam turbine that has completed the task to be executed is greater than or equal to the set thermal energy conversion ratio threshold, the thermal energy conversion ratio of the steam turbine meets the standard, and there is no need to replace the steam turbine with a new one for thermal energy conversion; S30254. If the thermal energy conversion ratio of the steam turbine that has completed the task to be executed is less than the set thermal energy conversion ratio threshold, the thermal energy conversion ratio of the steam turbine does not meet the standard, and the steam turbine will be replaced with a new one for thermal energy conversion; It can be understood that in order to avoid the situation where the real-time thermal energy conversion ratio of the steam turbine does not meet the standard during the power generation process, by analyzing the duration of the task to be executed in the thermal power plant, the combustion duration corresponding to the coal consumption of the task to be executed is determined. Because when the coal combustion ends, no thermal energy will be generated, and the conversion process of the steam turbine will end. Therefore, the combustion duration corresponds to the working duration of the steam turbine. So, by calculating and processing the combustion duration corresponding to the coal consumption of the task to be executed and the degradation value of the thermal energy conversion ratio of the steam turbine per unit time, the degradation value of the thermal energy conversion ratio of the steam turbine that has completed the task to be executed can be determined. Then, by summing up the degradation value of the thermal energy conversion ratio of the steam turbine that has completed the task to be executed and the second thermal energy conversion ratio of the steam turbine, the thermal energy conversion ratio of the steam turbine that has completed the task to be executed can be determined. Finally, by comparing and judging the thermal energy conversion ratio of the steam turbine that has completed the task to be executed, it can be determined whether the thermal energy conversion ratio of the steam turbine will not meet the standard during the power generation process. If the thermal energy conversion ratio of the steam turbine will not meet the standard during the power generation process, there is no need to replace the steam turbine with a new one for thermal energy conversion. If the thermal energy conversion ratio of the steam turbine will meet the standard during the power generation process, a new steam turbine needs to be replaced for thermal energy conversion. Otherwise, a large amount of thermal energy can only be converted into a small amount of mechanical energy, wasting coal and increasing the power generation cost.

[0023] Refer to Figure 2 As shown, a thermal power plant energy-saving system based on data analysis is used to implement a thermal power plant energy-saving method based on data analysis as described above, including: An intelligent analysis terminal, which is used to control each module to perform data calculation and processing on the data related to the power generation task of the thermal power plant and determine the real-time thermal energy conversion ratio of the steam turbine; the intelligent analysis terminal is used to control each module to perform status analysis, data calculation, and data comparison on the real-time thermal energy conversion ratio of the steam turbine and the task to be executed in the thermal power plant to determine whether a new steam turbine needs to be replaced for thermal energy conversion; the intelligent analysis terminal is used to control data transmission and information interaction between each module; A database system, which is used to store the historical data of the thermal power plant; A data classification module, which is used to classify the historical data of a thermal power plant and obtain the data related to the power generation tasks of the thermal power plant; A first data calculation module, which is used to perform data calculation processing on the data related to the power generation tasks of the power plant to determine the first heat energy conversion ratio and the second heat energy conversion ratio of the steam turbine; A second data calculation module, which is used to perform data calculation processing on the first heat energy conversion ratio and the second heat energy conversion ratio of the steam turbine to determine the real-time heat energy conversion ratio of the steam turbine; A status determination module, which is used to perform judgment processing on the real-time heat energy conversion ratio of the steam turbine to determine the real-time status of the steam turbine; A first status analysis module, which performs data calculation processing and data comparison processing on the tasks to be executed by the thermal power plant and the second heat energy conversion ratio of the steam turbine according to the first real-time status of the steam turbine to determine whether a new steam turbine needs to be replaced for heat energy conversion; A second status analysis module, which replaces a new steam turbine for heat energy conversion according to the second real-time status of the steam turbine.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving method for thermal power plants based on data analysis, characterized in that Including: Obtain the historical data of the thermal power plant, and based on the intelligent analysis terminal, perform data analysis and processing on the historical data of the thermal power plant to determine the first thermal energy conversion ratio of the steam turbine; Based on the intelligent analysis terminal, perform calculation and analysis processing on the first thermal energy conversion ratio of the steam turbine and the historical data of the thermal power plant to determine the real-time thermal energy conversion ratio of the steam turbine; Based on the intelligent analysis terminal, perform data analysis and processing on the real-time thermal energy conversion ratio of the steam turbine to determine whether a new steam turbine needs to be replaced for thermal energy conversion.

2. The energy-saving method for a thermal power plant based on data analysis according to claim 1, wherein The step of obtaining the historical data of the thermal power plant and performing data analysis and processing on the historical data of the thermal power plant based on the intelligent analysis terminal to determine the first thermal energy conversion ratio of the steam turbine specifically includes the following steps: Based on the intelligent analysis terminal, perform data reading processing on the database system of the thermal power plant to obtain the historical data of the thermal power plant; Based on the intelligent analysis terminal, perform data classification processing on the historical data of the thermal power plant with the power generation task as the feature to obtain the power generation task-related data of the thermal power plant; Based on the intelligent analysis terminal, perform data reading processing on the power generation task-related data of the thermal power plant to obtain the first power generation task-related data of the thermal power plant; Based on the intelligent analysis terminal, perform calculation and analysis processing on the first power generation task-related data of the thermal power plant to determine the first thermal energy conversion ratio of the steam turbine.

3. The energy-saving method for a thermal power plant based on data analysis according to claim 2, wherein, The step of performing calculation and analysis processing on the first power generation task-related data of the thermal power plant based on the intelligent analysis terminal to determine the first thermal energy conversion ratio of the steam turbine specifically includes the following steps: Based on the intelligent analysis terminal, perform data reading processing on the first power generation task-related data of the thermal power plant to obtain the coal consumption of the first power generation task and the mechanical energy generation amount of the steam turbine of the first power generation task; Based on the intelligent analysis terminal, perform data reading processing on the database system of the thermal power plant to obtain the calorific value of unit coal; Based on the intelligent analysis terminal, perform calculation processing on the coal consumption of the first power generation task and the calorific value of unit coal to determine the total coal heat generation of the first power generation task; Based on the intelligent analysis terminal, perform calculation processing on the total coal heat generation of the first power generation task and the mechanical energy generation amount of the steam turbine of the first power generation task to obtain the first thermal energy conversion ratio of the steam turbine.

4. The energy-saving method for a thermal power plant based on data analysis according to claim 1, wherein, The step of performing calculation and analysis processing on the first thermal energy conversion ratio of the steam turbine and the historical data of the thermal power plant based on the intelligent analysis terminal to determine the real-time thermal energy conversion ratio of the steam turbine specifically includes the following steps: Based on the intelligent analysis terminal, perform data reading processing on the power generation task-related data of the thermal power plant to obtain the latest power generation task-related data of the thermal power plant; Based on the intelligent analysis terminal, perform data reading processing on the latest power generation task-related data of the thermal power plant to obtain the coal consumption of the latest power generation task and the mechanical energy generation amount of the steam turbine of the latest power generation task; Based on the intelligent analysis terminal, perform calculation processing on the coal consumption of the latest power generation task and the calorific value of unit coal to obtain the total coal heat generation of the latest task; Based on the intelligent analysis terminal, perform calculation processing on the total coal heat generation of the latest task and the mechanical energy generation amount of the steam turbine of the latest power generation task to determine the second thermal energy conversion ratio of the steam turbine. Based on an intelligent analysis terminal, calculate and analyze the first heat energy conversion ratio and the second heat energy conversion ratio of the steam turbine to determine the real-time heat energy conversion ratio of the steam turbine.

5. The energy-saving method for a thermal power plant based on data analysis according to claim 4, characterized in that, The steps of calculating and analyzing the first heat energy conversion ratio and the second heat energy conversion ratio of the steam turbine based on the intelligent analysis terminal to determine the real-time heat energy conversion ratio of the steam turbine are as follows: Based on the intelligent analysis terminal, read and process the data related to the power generation tasks of the thermal power plant to obtain the power generation duration of each power generation task of the thermal power plant. Based on the intelligent analysis terminal, sum up the power generation durations of each power generation task of the thermal power plant to obtain the total power generation duration of the thermal power plant. Based on the intelligent analysis terminal, calculate the difference between the first heat energy conversion ratio and the second heat energy conversion ratio of the steam turbine to determine the degradation value of the heat energy conversion ratio of the steam turbine. Based on the intelligent analysis terminal, calculate and process the degradation value of the heat energy conversion ratio of the steam turbine and the total power generation duration of the thermal power plant to obtain the degradation value of the heat energy conversion ratio of the steam turbine per unit time. Based on the intelligent analysis terminal, sum up the degradation value of the heat energy conversion ratio of the steam turbine per unit time and the second heat energy conversion ratio of the steam turbine to determine the real-time heat energy conversion ratio of the steam turbine.

6. A method for energy conservation in a thermal power plant based on data analysis according to claim 1, characterized in that The steps of analyzing the data of the real-time heat energy conversion ratio of the steam turbine based on the intelligent analysis terminal to determine whether a new steam turbine needs to be replaced for heat energy conversion are as follows: Based on the intelligent analysis terminal, conduct a comparative analysis of the real-time heat energy conversion ratio of the steam turbine to determine the real-time state of the steam turbine; wherein, the real-time state of the steam turbine is specifically any one of the first real-time state and the second real-time state of the steam turbine. If the real-time state of the steam turbine is the first real-time state, based on the intelligent analysis terminal, conduct a state verification process on the first real-time state of the steam turbine to determine whether a new steam turbine needs to be replaced for heat energy conversion. If the real-time state of the steam turbine is the second real-time state, replace the steam turbine with a new steam turbine for heat energy conversion.

7. The energy-saving method for a thermal power plant based on data analysis according to claim 6, characterized in that, The steps of conducting a comparative analysis of the real-time heat energy conversion ratio of the steam turbine based on the intelligent analysis terminal to determine the real-time state of the steam turbine are as follows: Based on the intelligent analysis terminal, conduct a judgment process on the real-time heat energy conversion ratio of the steam turbine and the set heat energy conversion ratio threshold. If the real-time heat energy conversion ratio of the steam turbine is greater than the set heat energy conversion ratio threshold, output the first real-time state of the steam turbine. If the real-time heat energy conversion ratio of the steam turbine is less than or equal to the set heat energy conversion ratio threshold, output the second real-time state of the steam turbine.

8. The energy-saving method for a thermal power plant based on data analysis according to claim 7, wherein The steps of conducting a state verification process on the first real-time state of the steam turbine based on the intelligent analysis terminal to determine whether a new steam turbine needs to be replaced for heat energy conversion are as follows: Based on the intelligent analysis terminal, read and process the task list of the thermal power plant to obtain the tasks to be executed by the thermal power plant. Based on the intelligent analysis terminal, read and process the tasks to be executed by the thermal power plant to obtain the coal consumption of the tasks to be executed. Based on an intelligent analysis terminal, information matching processing is performed on the data related to the power generation tasks of a thermal power plant using the coal consumption of the task to be executed as a feature, and the combustion duration corresponding to the coal consumption of the task to be executed is determined; Based on an intelligent analysis terminal, calculation processing is performed on the combustion duration corresponding to the coal consumption of the task to be executed and the degradation value of the thermal energy conversion ratio of the steam turbine per unit time, and the degradation value of the thermal energy conversion ratio of the steam turbine for completing the task to be executed is determined; Based on an intelligent analysis terminal, calculation and analysis processing are performed on the degradation value of the thermal energy conversion ratio of the steam turbine for completing the task to be executed and the second thermal energy conversion ratio of the steam turbine to determine whether a new steam turbine needs to be replaced for thermal energy conversion.

9. The energy-saving method for a thermal power plant based on data analysis according to claim 8, characterized in that The above-mentioned based on an intelligent analysis terminal, performing calculation and analysis processing on the degradation value of the thermal energy conversion ratio of the steam turbine for completing the task to be executed and the second thermal energy conversion ratio of the steam turbine to determine whether a new steam turbine needs to be replaced for thermal energy conversion specifically includes the following steps: Based on an intelligent analysis terminal, summation calculation processing is performed on the degradation value of the thermal energy conversion ratio of the steam turbine for completing the task to be executed and the second thermal energy conversion ratio of the steam turbine to determine the thermal energy conversion ratio of the steam turbine for completing the task to be executed; Based on an intelligent analysis terminal, judgment processing is performed on the thermal energy conversion ratio of the steam turbine for completing the task to be executed and the set thermal energy conversion ratio threshold; If the thermal energy conversion ratio of the steam turbine for completing the task to be executed is greater than or equal to the set thermal energy conversion ratio threshold, the thermal energy conversion ratio of the steam turbine meets the standard, and there is no need to replace a new steam turbine for thermal energy conversion; If the thermal energy conversion ratio of the steam turbine for completing the task to be executed is less than the set thermal energy conversion ratio threshold, the thermal energy conversion ratio of the steam turbine does not meet the standard, and the steam turbine is replaced with a new steam turbine for thermal energy conversion.

10. An energy-saving system for thermal power plants based on data analysis, which is used to implement an energy-saving method for thermal power plants based on data analysis as described in any one of claims 1-9, characterized in that, Including: An intelligent analysis terminal, which is used to control each module to perform data calculation processing on the data related to the power generation tasks of a thermal power plant and determine the real-time thermal energy conversion ratio of the steam turbine; the intelligent analysis terminal is used to control each module to perform status analysis processing, data calculation processing and data comparison processing on the real-time thermal energy conversion ratio of the steam turbine and the tasks to be executed in the thermal power plant to determine whether a new steam turbine needs to be replaced for thermal energy conversion; the intelligent analysis terminal is used to control data transmission and information interaction between each module; A database system, which is used to store the historical data of a thermal power plant; A data classification module, which is used to classify the historical data of a thermal power plant to obtain the data related to the power generation tasks of the thermal power plant; A first data calculation module, which is used to perform data calculation processing on the data related to the power generation tasks of a power plant to determine the first thermal energy conversion ratio of the steam turbine and the second thermal energy conversion ratio of the steam turbine; A second data calculation module, which is used to perform data calculation processing on the first thermal energy conversion ratio of the steam turbine and the second thermal energy conversion ratio of the steam turbine to determine the real-time thermal energy conversion ratio of the steam turbine; A status determination module, which is used to perform judgment processing on the real-time thermal energy conversion ratio of the steam turbine to determine the real-time status of the steam turbine; The first status analysis module, which performs data calculation processing and data comparison processing on the tasks to be executed in the thermal power plant and the second thermal energy conversion ratio of the steam turbine according to the first real-time status of the steam turbine, and determines whether a new steam turbine needs to be replaced for thermal energy conversion; The second status analysis module, which replaces a new steam turbine for thermal energy conversion according to the second real-time status of the steam turbine.

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