A real-time carbon emission calculation system and calculation method for a coal-fired power plant

Abstract

The present invention provides a real-time carbon emission calculation system and method for a coal-fired power plant, which collects the operation data of each unit of the coal-fired power plant and the carbon emission calculation guide data; according to the carbon emission calculation method, the carbon emissions of different activities of each unit of the power plant and the carbon emission intensity are calculated in real time; according to the real-time carbon emissions of each unit of the power plant, the hourly, daily, monthly and annual carbon emissions and carbon emission intensity are accumulated based on time, and the total carbon emissions and carbon emission intensity of the entire power plant are accumulated based on the units, and displayed. The present invention develops a real-time carbon emissions and carbon emission intensity calculation system and method, which tracks and calculates the carbon emissions of enterprises in real time according to national standards, and uses this data to provide effective data support for the purchase of carbon emission quotas and the production and operation of enterprises.

Description

Technical Field

[0001] The present invention relates to the field of carbon emission calculation and measurement of coal-fired power plants, and more specifically, to a real-time carbon emission calculation system and calculation method for coal-fired power plants. Background Art

[0003] Scientific and effective calculation of corporate carbon emissions can provide strong support for corporate carbon emission quota purchases; moreover, complete and accurate carbon emission statistics can also more scientifically and effectively reflect the effectiveness of corporate carbon emission reduction measures and the effectiveness of environmental protection.

[0004] At present, the carbon emissions of coal-fired power generation enterprises in my country are mostly estimated based on the total energy consumption and the emission coefficients of various energy sources. This method is limited by the statistical cycle of enterprise energy consumption, which is generally monthly or quarterly. In today's daily cycle of carbon trading, it is lagging behind, and different statistical calibers will cause large errors, and it is impossible to characterize the real-time total carbon emissions of enterprises and the situation of carbon emissions exceeding the limit. Summary of the invention

[0005] The present invention aims at the technical problems existing in the prior art, and provides a real-time carbon emission calculation system and method for coal-fired power plants, which can at least partially solve the above problems. The technical solution of the present invention is aimed at the actual situation that the monthly or quarterly statistics of carbon emissions of coal-fired power generation enterprises are particularly lagging compared with the current daily carbon quota trading frequency, and due to the error in the statistical caliber of the enterprise's fuel consumption, the statistical error of the overall carbon emissions will be amplified. Therefore, a real-time carbon emission and carbon emission intensity calculation system and method are developed, which can track and calculate the carbon emissions of enterprises in real time according to national standards, and use this data to provide effective data support for the purchase of carbon emission quotas and the production and operation of enterprises.

[0006] According to a first aspect of the present invention, a real-time carbon emission calculation system for a coal-fired power plant is provided, comprising a data acquisition module, a carbon emission real-time calculation module, a carbon emission accumulation statistics module and a display output module, wherein the data acquisition module comprises a system data acquisition unit and an external data acquisition unit; The data acquisition module is used to collect the operating data of each unit of the coal-fired power plant and the carbon emission calculation guide data, which are collected by the system data acquisition unit and the external data acquisition unit respectively, and transmitted to the carbon emission real-time calculation module; The carbon emission real-time calculation module is used to calculate the carbon emission of different activities and the carbon emission intensity of each unit of the power plant in real time according to the operation data of each unit collected by the data collection module and according to the carbon emission calculation method, and transmit the carbon emission of different activities and the carbon emission intensity of each unit of the power plant to the carbon emission accumulation statistics module; The carbon emission accumulation statistics module is used to obtain hourly, daily, monthly and annual carbon emissions and carbon emission intensity based on time accumulation according to the real-time carbon emissions of each unit in the power plant, and to accumulate the total carbon emissions and carbon emission intensity of the entire power plant based on the units; The display output module is used to display the real-time carbon emissions, real-time carbon emission intensity, hourly, daily, monthly and annual carbon emissions and carbon emission intensity of each unit in the coal-fired power plant; and to display the real-time, hourly, daily, monthly and annual carbon emissions and carbon emission intensity of the entire power plant.

[0007] According to a second aspect of the present invention, a method for calculating real-time carbon emissions of a coal-fired power plant is provided, comprising: Collect operating data of each unit in coal-fired power plants and carbon emission calculation guide data; According to the operation data of each unit collected by the data collection module and the carbon emission calculation method, the carbon emission and carbon emission intensity of different activities of each unit in the power plant are calculated in real time; According to the real-time carbon emissions of each unit in the power plant, the hourly, daily, monthly and annual carbon emissions and carbon emission intensity are accumulated based on time, and the total carbon emissions and carbon emission intensity of the entire power plant are accumulated based on the units; Displays the real-time carbon emissions of each unit in a coal-fired power plant, real-time carbon emission intensity, hourly, daily, monthly and annual carbon emissions and carbon emission intensity; and displays the real-time, hourly, daily, monthly and annual carbon emissions and carbon emission intensity of the entire power plant.

[0008] The real-time carbon emission calculation system and calculation method of a coal-fired power plant provided by the present invention have the following beneficial effects compared with the prior art: (1) Since the traditional carbon emission statistical cycle of coal-fired power generation enterprises is monthly (or quarterly), the calculation of coal-fired carbon emissions, which accounts for the largest proportion of their carbon emission calculations, cannot be accurately calculated based on the carbon emissions of different types of coal burned on a daily basis. Instead, all types of coal burned during this period are treated as the same type of coal for statistical calculations on a monthly or quarterly basis, resulting in large calculation errors. This system calculates the carbon emissions of coal consumption by the group and the enterprise in real time, and the calculated values ​​directly correspond to the quality and quantity of the coal burned, eliminating calculation errors and better guiding the production and operation of the enterprise. (2) The carbon emission calculation of this system takes into account the carbon emissions of the entire production process of the enterprise, including fossil fuel combustion emissions (oil, coal and other fossil fuels), carbonate carbon emissions from the desulfurization process, and carbon emissions from purchased electricity. It is closely aligned with national standards, and the data results are more reliable; (3) This system uses national standards to calculate the carbon emissions of enterprises and tracks the calculations in real time. The results are easy and quick to obtain. In addition, the corresponding standard factor data in the calculation process can be changed according to actual policy adjustments to adapt to policy changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A structural block diagram of a real-time carbon emission calculation system for a coal-fired power plant provided by the present invention; Figure 2 A flow chart of a method for calculating real-time carbon emissions from a coal-fired power plant provided by the present invention. DETAILED DESCRIPTION

[0010] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In addition, the technical features in the various embodiments or single embodiments provided by the present invention can be arbitrarily combined with each other to form a feasible technical solution. This combination is not subject to the constraints of the sequence of steps and / or the structural composition mode, but must be based on the ability of ordinary technicians in this field to achieve. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0011] Figure 1 A block diagram of a real-time carbon emission calculation system for a coal-fired power plant provided by the present invention, such as Figure 1 As shown, the real-time carbon emission calculation system of a coal-fired power plant includes a data acquisition module, a carbon emission real-time calculation module, a carbon emission accumulation statistics module and a display output module, and the data acquisition module includes a system data acquisition unit and an external data acquisition unit.

[0012] The data acquisition module is used to collect the operating data of each unit of the coal-fired power plant and the carbon emission calculation guide data, which are collected by the system data acquisition unit and the external data acquisition unit respectively, and transmitted to the carbon emission real-time calculation module.

[0013] Preferably, the operating data of coal-fired power plant units include fuel consumption, fuel quality (oil type, low calorific value), coal feeding amount, coal quality data of feeding into the furnace (including coal sulfur content, calorific value and carbon content), desulfurizer usage during operation and net purchased electricity data, etc.

[0014] Preferably, the carbon emission calculation guide data includes the emission factor per unit calorific value of fuel oil, the emission factor per unit calorific value of coal, the emission factor per unit calorific value of other fossil fuels, the carbon content per unit calorific value of coal, the emission factor of carbonate in desulfurizers, and the annual average power supply emission factor of the regional power grid.

[0015] The carbon emission real-time calculation module is used to calculate the different activity carbon emissions and carbon emission intensity of each unit in the power plant in real time according to the operating data of each unit collected by the data collection module and according to the carbon emission calculation method, and transmit the different activity carbon emissions and carbon emission intensity of each unit in the power plant to the carbon emission accumulation statistics module.

[0016] Preferably, carbon emissions refer to the average greenhouse gas (CO2) emissions generated during the production, transportation, use and recycling of the product, measured in tons; the carbon emission intensity includes the unit carbon emission intensity and the enterprise carbon emission intensity: the unit carbon emission intensity is the quotient of the unit carbon emissions and the unit power generation, and the enterprise carbon emission intensity refers to the quotient of the enterprise's overall carbon emissions and the power generation of all the enterprise's units.

[0017] Preferably, the carbon emission calculation method is determined according to the national law guidelines, which refer to the guidance document "Guidelines for the Calculation and Reporting of Greenhouse Gas Emissions of Power Generation Enterprises in China (Trial)" (hereinafter referred to as "National Guidelines"). It should be clearly pointed out that the carbon emission calculation method is different depending on the selection of the guidance method: Preferably, in this embodiment, the calculation method of the national guideline standard includes: all emissions of power generation enterprises include carbon dioxide emissions from fossil fuel combustion, carbon dioxide emissions from the desulfurization process of coal-fired power generation enterprises, and carbon dioxide emissions from the net purchase and use of electricity by enterprises. For carbon dioxide emissions from biomass mixed fuel combustion power generation, only the carbon dioxide emissions of fossil fuels (such as coal) in the mixed fuel are counted; for carbon dioxide emissions caused by waste incineration power generation, only the carbon dioxide emissions of fossil fuels (such as coal) used in power generation are counted.

[0018] The total greenhouse gas emissions of power generation enterprises are equal to the sum of the emissions from fossil fuel combustion, the emissions from the desulfurization process and the emissions from the net purchase and use of electricity within the enterprise boundary, and are calculated as follows: Total carbon dioxide emissions E = carbon dioxide emissions from burning fossil fuels E 燃烧 + Carbon dioxide emissions from the desulfurization process E 脱硫 + Net CO2 emissions from purchased electricity E 电 .

[0019] In this embodiment, the fossil fuel combustion emissions E combustion according to the national guidelines are the carbon dioxide emissions generated by the combustion of fossil fuels, which are calculated according to the following formula: E 燃烧 =AD i ×EF i =(FC i ×NCV i )×(CC i ×OF i ×44 / 12) In the formula, E 燃烧 : CO2 emissions from fossil fuel combustion (tons); EF i : Emission factor of the ith fuel (tons of CO2 / terajoule), default value, see Table 1; i: Type of fossil fuel, such as coal or fuel oil; AD i : the activity level of the ith fossil fuel (TJ); FC i : Consumption of the i-th fossil fuel (tons); NCV i : the average lower calorific value of the ith fossil fuel (kJ / kg); CC i : Carbon content per unit calorific value of the i-th fossil fuel (tons of carbon / terajoule), default value, see Table 1; OF i : Carbon oxidation rate of the ith fossil fuel (%), default value, see Table 1; 44 / 12: Ratio of the molecular weight of carbon dioxide to the average lower calorific value of fossil fuels (kJ / kg, kJ / Nm3).

[0020] Table 1 Default values ​​of commonly used fossil fuel related parameters

[0021] Note: The above data are taken from ① "China Greenhouse Gas Inventory Research" (2007); ② "Provincial Greenhouse Gas Inventory Compilation Guide" (Trial); ③ "China Energy Statistical Yearbook" (2011).

[0022] In this example, the national guideline method for desulfurization process emissions, for coal-fired units, should take into account the carbon dioxide emissions from the desulfurization process, which is calculated by multiplying the carbonate consumption by the emission factor. Calculate according to the following formula E 脱硫 =∑CAL k ×EF k CAL k =ΣB k,m ×I k EF k =EF k,t ×TR In the formula, E 脱硫 : CO2 emissions from the desulfurization process (tons); CAL k : Consumption of carbonate in the kth desulfurizer (tons); EF k: Emission factor of carbonate in the kth desulfurizer (tons of CO2 / ton); k: desulfurizer type; CAL k,y : The annual consumption of carbonate in desulfurizer (tons); B k,m : Consumption of desulfurizer in a certain month of the year (tons); I k : The carbonate content in the desulfurizer takes the default value of 90%; y: accounting and reporting year; m: month of the accounting and reporting year; EF k,t : Emission factor of the desulfurization process when fully converted (tons of CO2 / ton), limestone takes the value of 0.440; TR: conversion rate (%), take 100%.

[0023] The consumption of desulfurizers (such as limestone, etc.) used in the desulfurization process can be obtained by adding up the measured values ​​of each batch or each day, and the consumption can be recorded every month. If the enterprise does not conduct measurements or the measured values ​​are unavailable, the settlement invoice can be used instead.

[0024] In this embodiment, the carbonate content in the desulfurizer takes a default value of 90%.

[0025] In this embodiment, the emission factors of the desulfurization process when the conversion is complete are shown in Table 2.

[0026] In this embodiment, the conversion rate of the desulfurization process is 100%.

[0027] Table 2 Default values ​​of carbonate emission factors

[0028] In this embodiment, the carbon dioxide emissions generated by the net purchase of electricity according to the national guideline method are obtained by multiplying the net purchased electricity by the average power supply emission factor of the regional power grid, and are calculated using the following formula.

[0029] E 电 =AD 电 ×EF 电 In the formula, E 电 : CO2 emissions from net purchased electricity (tons); AD 电 : Net electricity purchase of the enterprise (MWh); EF 电: Annual average power supply emission factor of regional power grid (tons of CO2 / MWh); Activity level data of net purchased electricity AD 电 The readings recorded on the electricity meter of the power generation enterprise shall prevail. If not available, the data on the settlement vouchers such as the electricity invoice or settlement statement provided by the supplier may be used.

[0030] In this embodiment, the electricity emission factor should be calculated based on the enterprise's production address and the current divisions of the Northeast, North China, East China, Central China, Northwest China, and South China power grids, and the corresponding regional power grid emission factors announced by the national competent authorities in recent years should be used.

[0031] The carbon emission accumulation statistics module is used to obtain hourly, daily, monthly and annual carbon emissions and carbon emission intensity based on time accumulation according to the real-time carbon emissions of each unit in the power plant, and to accumulate the total carbon emissions and carbon emission intensity of the entire power plant based on the units.

[0032] Among them, the carbon emission real-time calculation module calculates the real-time carbon emissions and carbon emission intensity of each unit in the power plant, and obtains the carbon emissions and carbon emission intensity of each unit in the power plant in hours, days, months and years based on time accumulation. The accumulated carbon emissions and carbon emission intensity of all units in the power plant are summed up to obtain the carbon emissions and carbon emission intensity of the entire power plant.

[0033] The display output module is used to display the real-time carbon emissions, real-time carbon emission intensity, hourly, daily, monthly and annual carbon emissions and carbon emission intensity of each unit in the coal-fired power plant; and to display the real-time, hourly, daily, monthly and annual carbon emissions and carbon emission intensity of the entire power plant.

[0034] Figure 2 The present invention provides a method for calculating real-time carbon emissions of a coal-fired power plant, comprising: Step 1: Collect the operating data of each unit of the coal-fired power plant and the carbon emission calculation guide data; Step 2, according to the operation data of each unit collected by the data collection module and the carbon emission calculation method, the carbon emissions and carbon emission intensity of different activities of each unit in the power plant are calculated in real time; Step 3: Based on the real-time carbon emissions of each unit in the power plant, the hourly, daily, monthly and annual carbon emissions and carbon emission intensity are accumulated based on time, and the total carbon emissions and carbon emission intensity of the entire power plant are accumulated based on the units; Step 4: Display the real-time carbon emissions, real-time carbon emission intensity, hourly, daily, monthly and annual carbon emissions and carbon emission intensity of each unit of the coal-fired power plant; and display the real-time, hourly, daily, monthly and annual carbon emissions and carbon emission intensity of the entire power plant.

[0035] Among them, a real-time carbon emission calculation method for a coal-fired power plant provided by the present invention corresponds to the real-time carbon emission calculation system for a coal-fired power plant provided by the aforementioned embodiments. The relevant technical features of the real-time carbon emission calculation method for a coal-fired power plant can refer to the relevant technical features of the real-time carbon emission calculation system for a coal-fired power plant, which will not be repeated here.

[0036] The embodiments of the present invention provide a real-time carbon emission calculation system and method for a coal-fired power plant. The system and method are designed to target the actual situation that coal-fired power generation enterprises currently perform monthly or quarterly statistics on their carbon emissions, which is particularly lagging behind the daily carbon quota trading frequency. In addition, due to the errors in the statistical caliber of the enterprise's fuel consumption, the statistical errors of the overall carbon emissions will be amplified. Therefore, a real-time carbon emissions and carbon emission intensity calculation system and method are developed. According to national standards, the enterprise's carbon emissions can be tracked and calculated in real time, and this data can provide effective data support for the enterprise's purchase of carbon emission quotas and the enterprise's production and operation.

[0037] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0038] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0039] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0040] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0041] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0042] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A real-time carbon emission calculation system for a coal-fired power plant, characterized in that: It includes a data acquisition module, a carbon emission real-time calculation module, a carbon emission accumulation statistics module and a display output module, wherein the data acquisition module includes a system data acquisition unit and an external data acquisition unit; The data acquisition module is used to collect the operating data of each unit of the coal-fired power plant and the carbon emission calculation guide data, which are collected by the system data acquisition unit and the external data acquisition unit respectively, and transmitted to the carbon emission real-time calculation module; The carbon emission real-time calculation module is used to calculate the carbon emission of different activities and the carbon emission intensity of each unit of the power plant in real time according to the operation data of each unit collected by the data collection module and according to the carbon emission calculation method, and transmit the carbon emission of different activities and the carbon emission intensity of each unit of the power plant to the carbon emission accumulation statistics module; The carbon emission accumulation statistics module is used to obtain hourly, daily, monthly and annual carbon emissions and carbon emission intensity based on time accumulation according to the real-time carbon emissions of each unit in the power plant, and to accumulate the total carbon emissions and carbon emission intensity of the entire power plant based on the units; The display output module is used to display the real-time carbon emissions of each unit of the coal-fired power plant, the real-time carbon emission intensity, and the hourly, daily, monthly and annual carbon emissions and carbon emission intensity; It also displays the real-time, hourly, daily, monthly and annual carbon emissions and carbon emission intensity of the entire power plant.

2. The real-time carbon emission calculation system for coal-fired power plants according to claim 1, characterized in that: The operating data of each unit of the coal-fired power plant includes fuel consumption, fuel quality, coal feeding amount, coal quality data of feeding coal, desulfurizer usage during operation and net purchased electricity data. The fuel quality includes oil type and low calorific value, and the coal quality data of feeding coal includes sulfur content, calorific value and carbon content of coal.

3. The real-time carbon emission calculation system for a coal-fired power plant according to claim 1, characterized in that: The carbon emission calculation guide data includes the emission factor per unit calorific value of fuel oil, the emission factor per unit calorific value of coal, the emission factor per unit calorific value of other fossil fuels, the carbon content per unit calorific value of coal, the emission factor of carbonate in desulfurizers, and the annual average power supply emission factor of the regional power grid.

4. The real-time carbon emission calculation system for a coal-fired power plant according to claim 1, characterized in that: The carbon emissions refer to the average greenhouse gas (CO2) emissions generated during the production, transportation, use and recycling of the product, measured in tons; the carbon emission intensity includes the unit carbon emission intensity and the enterprise carbon emission intensity: the unit carbon emission intensity is the quotient of the unit carbon emissions and the unit power generation; the enterprise carbon emission intensity refers to the quotient of the enterprise's overall carbon emissions and the power generation of all the enterprise's units.

5. The real-time carbon emission calculation system for a coal-fired power plant according to claim 4, characterized in that: According to national guidelines, carbon emissions include carbon dioxide emissions from fossil fuel combustion by power generation companies, carbon dioxide emissions from the desulfurization process of coal-fired power generation companies, and carbon dioxide emissions from net purchases of electricity by companies. Among them, for the carbon dioxide emissions from the combustion of biomass mixed fuels for power generation, only the carbon dioxide emissions from the fossil fuels in the mixed fuels are counted; for the carbon dioxide emissions caused by waste incineration for power generation, only the carbon dioxide emissions from the fossil fuels used in power generation are counted.

6. The real-time carbon emission calculation system for a coal-fired power plant according to claim 5, characterized in that: The total greenhouse gas emissions of power generation enterprises are equal to the sum of the emissions from fossil fuel combustion, the emissions from the desulfurization process and the emissions from the net purchase and use of electricity within the enterprise boundary, and are calculated as follows: Total CO2 emissions E = CO2 emissions from burning fossil fuels E 燃烧 + Carbon dioxide emissions from the desulfurization process E 脱硫 + Net CO2 emissions from purchased electricity E 电 .

7. The real-time carbon emission calculation system for a coal-fired power plant according to claim 6, characterized in that: The carbon dioxide emissions from burning fossil fuels are E 燃烧 Calculated using the following formula: E 燃烧 =AD i ×EF i =(FC i ×NCV i )×(CC i ×OF i ×44 / 12) In the formula, E 燃烧 : CO2 emissions from fossil fuel combustion (tons); EF i : Emission factor of the ith fuel (tons of CO2 / terajoule), default value; i: Type of fossil fuel, such as coal or fuel oil; AD i : the activity level of the ith fossil fuel (TJ); FC i : Consumption of the i-th fossil fuel (tons); NCV i : the average lower calorific value of the ith fossil fuel (kJ / kg); CC i : Carbon content per unit calorific value of the i-th fossil fuel (tons of carbon / terajoule), default value, see Table 1; OF i : Carbon oxidation rate of the ith fossil fuel (%).

8. The real-time carbon emission calculation system for a coal-fired power plant according to claim 6, characterized in that: The carbon dioxide emissions generated by the desulfurization process are E 脱硫 It is calculated by multiplying the consumption of carbonate by the emission factor using the following formula: AND 脱硫 =∑CAL k ×EF k CAL k =ΣB k,m ×I k IF k =IF k,t ×TR In the formula, E 脱硫 : Carbon dioxide emissions from the desulfurization process (tons) CAL k : Consumption of carbonate in the kth desulfurizer (tons) EF k : Emission factor of carbonate in the kth desulfurizer (tons of CO2 / ton) k: Desulfurization agent type CAL k,y : Annual consumption of carbonate in desulfurizer (tons) B k,m : Consumption of desulfurizer in a certain month of the year (tons) I k : The carbonate content in the desulfurizer is taken as the default value of 90% y: accounting and reporting year m: Month of the accounting and reporting year EF k,t : Emission factor of the desulfurization process when fully converted (tons of carbon dioxide / ton), limestone takes the value of 0.440 TR: conversion rate (%), take 100%.

9. The real-time carbon emission calculation system for a coal-fired power plant according to claim 6, characterized in that: The net carbon dioxide emissions from the purchased electricity E 电 The net amount of electricity purchased is multiplied by the average power supply emission factor of the regional power grid, calculated using the following formula: E 电 =AD 电 ×EF 电 In the formula, E 电 : Carbon dioxide emissions from net purchased electricity (tons) AD 电 : Net electricity purchase by the enterprise (MWh) EF 电 : Annual average power supply emission factor of the regional power grid (tons of CO2 / MWh).

10. A method for calculating real-time carbon emissions from a coal-fired power plant, characterized in that: include: Collect operating data of each unit in coal-fired power plants and carbon emission calculation guide data; According to the operation data of each unit collected by the data collection module and the carbon emission calculation method, the carbon emission and carbon emission intensity of different activities of each unit in the power plant are calculated in real time; According to the real-time carbon emissions of each unit in the power plant, the hourly, daily, monthly and annual carbon emissions and carbon emission intensity are accumulated based on time, and the total carbon emissions and carbon emission intensity of the entire power plant are accumulated based on the units; Displays the real-time carbon emissions of each unit in a coal-fired power plant, real-time carbon emission intensity, hourly, daily, monthly and annual carbon emissions and carbon emission intensity; and displays the real-time, hourly, daily, monthly and annual carbon emissions and carbon emission intensity of the entire power plant.

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