Carbon emission control method, system and equipment and storage medium

Abstract

The invention discloses a carbon emission control method, system and device and a storage medium. The method comprises the steps that the flow of flue gas at a chimney inlet and concentration information of carbon dioxide in the flue gas are detected; calculating the carbon capture cost (CCCS) according to the flow of the flue gas at the chimney inlet and the concentration information of carbon dioxide in the flue gas; based on the carbon capture cost CCCS, corresponding operation parameters of the coal-fired power generation system are calculated when the total operation income I of the coal-fired power generation system is maximum; and controlling the coal-fired power generation system according to the corresponding operation parameters of the coal-fired power generation system when the total operation income I of the coal-fired power generation system is increased. According to the method, the system, the equipment and the storage medium, the total operation income can be maximized after the trapping technology is integrated.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy conservation and efficiency improvement, and relates to a carbon emission control method, system, equipment and storage medium. Background Art

[0003] In the era of carbon constraints, the layout of carbon capture technology is very critical. Among the existing carbon capture technologies, the one that adapts to the "large flow and low concentration" characteristics of power plant flue gas is the post-capture technology using chemical absorption with amine solution. However, the efficiency of the unit drops significantly after the integration of post-capture technology. How to maximize the total operating benefits after integrating the capture technology has become a major problem in the industry. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a carbon emission control method, system, device and storage medium, which can maximize the total operating benefits after integrating capture technology.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme:

[0006] In one aspect, the present invention provides a carbon emission control method, comprising:

[0007] Detect the flue gas flow at the chimney inlet and the concentration of carbon dioxide in the flue gas;

[0008] The carbon capture cost C is calculated based on the flue gas flow rate at the chimney inlet and the concentration of carbon dioxide in the flue gas. CCS ;

[0009] Based on the cost of carbon capture CCS , calculate the operating parameters of the coal-fired power generation system corresponding to the maximum total operating income I of the coal-fired power generation system;

[0010] The coal-fired power generation system is controlled according to the operating parameters of the coal-fired power generation system corresponding to the increase of the total operating income I of the coal-fired power generation system.

[0011] The total operating income I of the coal-fired power generation system is:

[0012] I=I e +I e +I CO2 -(C eo +C CCS +C CCP )

[0013] Among them, C eo is the power generation cost, C CCP is the penalty cost for carbon emissions, I e is the income from selling electricity, I eis the carbon trading income, I CO2 To earn revenue from selling carbon.

[0014] Flue gas flow m gas for:

[0015] m gas =ρ gas ×Q gas =ρ gas ×v gas ×A pi

[0016] Among them, ρ gas is the density of smoke, Q gas is the volume flow rate of flue gas, v gas is the flow rate of flue gas, A pi is the cross-sectional area of ​​the exhaust duct.

[0017] The concentration of carbon dioxide in the flue gas is measured by volume measurement, titration or infrared absorption.

[0018] Power generation cost C eo for:

[0019]

[0020] Among them, m coal is the coal consumption, c coal is the coal price, C ecoal is the annual change coefficient of coal price; C OM For management costs, C CC is the maintenance cost, P net is the net power, N is the annual hours, and w is the load factor.

[0021] The flow rate of the flue gas is measured based on a pressure difference method, a thermal sensing method or an ultrasonic method.

[0022] Also includes:

[0023] A flue gas flow rate and carbon dioxide concentration detection system is set in front of the chimney, and the flue gas flow rate and carbon dioxide concentration information in the flue gas are obtained through the flue gas flow rate and carbon dioxide concentration detection system.

[0024] In a second aspect of the present invention, the present invention provides a carbon emission control system, comprising:

[0025] A detection module is used to detect the flow rate of smoke at the chimney entrance and the concentration of carbon dioxide in the smoke;

[0026] A calculation module is used to calculate the carbon capture cost C according to the flow rate of the flue gas at the chimney inlet and the concentration of carbon dioxide in the flue gas. CCS ;

[0027] Determine the module for carbon capture cost based on C CCS , calculate the operating parameters of the coal-fired power generation system corresponding to the maximum total operating income I of the coal-fired power generation system;

[0028] The control module is used to control the coal-fired power generation system according to the operating parameters of the coal-fired power generation system corresponding to the increase of the total operating income I of the coal-fired power generation system.

[0029] In a third aspect of the present invention, the present invention provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the steps of the carbon emission control method.

[0030] In a fourth aspect of the present invention, the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the carbon emission control method are implemented.

[0031] The present invention has the following beneficial effects:

[0032] The carbon emission control method, system, device and storage medium of the present invention are used in specific operations based on the carbon capture cost C CCS , calculate the operating parameters of the coal-fired power generation system corresponding to the maximum total operating benefit I of the coal-fired power generation system, and control the coal-fired power generation system according to the operating parameters of the coal-fired power generation system corresponding to the increase in the total operating benefit I of the coal-fired power generation system, so as to maximize the total operating benefit while considering the carbon capture technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 It is a structural diagram of the coal-fired power generation system in the present invention;

[0035] Figure 2 is a flow chart of the method of the present invention;

[0036] Figure 3 It is a system structure diagram of the present invention. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0040] Embodiment 1

[0041] refer to Figure 1 and Figure 2 The carbon emission control method of the present invention comprises the following steps:

[0042] 1) At the boiler exhaust, a flue gas flow rate and carbon dioxide concentration detection system is set in front of the chimney to obtain the flue gas flow rate and carbon dioxide concentration information in the flue gas;

[0043] 2) Establish the total operating income I model;

[0044] Specifically, based on the power generation cost C eo 、Carbon capture cost CCS , Carbon emission penalty cost C CCP 、Selling electricity income I e 、Carbon Trading Income I e and carbon sales income I CO2 Construct the total operating income I model;

[0045] 3) Obtaining the operating parameters of the coal-fired power generation system corresponding to the maximum total operating benefit I of the coal-fired power generation system;

[0046] 4) Controlling the coal-fired power generation system according to the obtained operating parameters of the coal-fired power generation system.

[0047] In this embodiment, the total operating income I is: I = I e +I e +I CO2 -(C eo +C CCS +C CCP ).

[0048] In this embodiment, the flue gas flow rate m gas for:

[0049] m gas =ρ gas ×Q gas =ρ gas ×v gas ×A pi

[0050] Among them, ρ gas is the density of smoke, Q gas is the volume flow rate of flue gas, v gas is the flow rate of flue gas, A pi is the cross-sectional area of ​​the exhaust duct.

[0051] In this embodiment, the flow rate of the flue gas is measured based on a pressure difference method, a thermal sensing method, or an ultrasonic method.

[0052] In this embodiment, the concentration of carbon dioxide in the flue gas is measured by volume measurement, titration or infrared absorption.

[0053] In this embodiment, the power generation cost C eo for:

[0054]

[0055] Among them, m coal is the coal consumption, c coal is the coal price, C ecoal is the annual change coefficient of coal price; C OM For management costs, C CC is the maintenance cost, P net is the net power, N is the annual hours, and w is the load factor.

[0056] In this embodiment, the power generation cost C eo It is 0.3~0.4 yuan / kWh.

[0057] In this embodiment, the carbon capture cost C CCS It is 170 to 340 yuan / t CO2.

[0058] In this embodiment, the carbon capture penalty cost C CCPIt consists of a fine for carbon emissions exceeding industry settings and the cost of captured carbon storage. The fine for carbon emissions exceeding industry settings is 200 to 280 yuan per t CO2, and the cost of captured carbon storage is 50 to 60 yuan per t CO2.

[0059] In this embodiment, the electricity sales income I e The peak electricity price.

[0060] In this embodiment, the carbon trading income I e The carbon emission amount of the enterprise involved in the transaction is 90 to 100 yuan / t CO2.

[0061] In this embodiment, the carbon sales income I CO2 The income from selling carbon is 300 to 650 yuan per ton of CO2.

[0062] Embodiment 2

[0063] refer to Figure 3 The carbon emission control system of the present invention comprises:

[0064] A detection module is used to detect the flow rate of smoke at the chimney entrance and the concentration of carbon dioxide in the smoke;

[0065] A calculation module is used to calculate the carbon capture cost C according to the flow rate of the flue gas at the chimney inlet and the concentration of carbon dioxide in the flue gas. CCS ;

[0066] Determine the module for carbon capture cost based on C CCS , calculate the operating parameters of the coal-fired power generation system corresponding to the maximum total operating income I of the coal-fired power generation system;

[0067] The control module is used to control the coal-fired power generation system according to the operating parameters of the coal-fired power generation system corresponding to the increase of the total operating income I of the coal-fired power generation system.

[0068] Embodiment 3

[0069] A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the carbon emission control method are implemented. The memory may include a memory, such as a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk memory, etc. The processor, the network interface, and the memory are interconnected through an internal bus. The internal bus may be an industrial standard architecture bus, a peripheral component interconnection standard bus, an extended industrial standard structure bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory is used to store programs. Specifically, the program may include a program code, and the program code includes computer operation instructions. The memory may include a memory and a non-volatile memory, and provide instructions and data to the processor.

[0070] Embodiment 4

[0071] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the carbon emission control method are implemented. Specifically, the computer-readable storage medium includes, but is not limited to, volatile memory and / or non-volatile memory. The volatile memory may include random access memory (RAM) and / or cache memory, etc. The non-volatile memory may include read-only memory (ROM), hard disk, flash memory, optical disk, magnetic disk, etc.

[0072] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0073] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes 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 processor, or other programmable data processing device to generate 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.

[0074] 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 including 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.

[0075] 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.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A carbon emission control method, characterized in that: include: Detect the flue gas flow at the chimney inlet and the concentration of carbon dioxide in the flue gas; The carbon capture cost C is calculated based on the flue gas flow rate at the chimney inlet and the concentration of carbon dioxide in the flue gas. CCS ; Based on the cost of carbon capture CCS , calculate the operating parameters of the coal-fired power generation system corresponding to the maximum total operating income I of the coal-fired power generation system; The coal-fired power generation system is controlled according to the operating parameters of the coal-fired power generation system corresponding to the increase of the total operating income I of the coal-fired power generation system.

2. The carbon emission control method according to claim 1, characterized in that: The total operating income I of the coal-fired power generation system is: I=I e +I e +I CO2 -(C eo +C CCS +C CCP ) Among them, C eo is the power generation cost, C CCP is the penalty cost for carbon emissions, I e is the income from selling electricity, I e is the carbon trading income, I CO2 To earn revenue from selling carbon.

3. The carbon emission control method according to claim 2, characterized in that: Flue gas flow m gas for: m gas =ρ gas ×Q gas =ρ gas ×v gas ×A pi Among them, ρ gas is the density of smoke, Q gas is the volume flow rate of flue gas, v gas is the flow rate of flue gas, A pi is the cross-sectional area of ​​the exhaust duct.

4. The carbon emission control method according to claim 2, characterized in that: The concentration of carbon dioxide in the flue gas is measured by volume measurement, titration or infrared absorption.

5. The carbon emission control method according to claim 2, characterized in that: Power generation cost C eo for: Among them, m coal is the coal consumption, c coal is the coal price, C ecoal is the annual change coefficient of coal price; C OM For management costs, C CC is the maintenance cost, P net is the net power, N is the annual hours, and w is the load factor.

6. The carbon emission control method according to claim 2, characterized in that: The flow rate of the flue gas is measured based on a pressure difference method, a thermal sensing method or an ultrasonic method.

7. The carbon emission control method according to claim 2, characterized in that: Also includes: A flue gas flow rate and carbon dioxide concentration detection system is set in front of the chimney, and the flue gas flow rate and carbon dioxide concentration information in the flue gas are obtained through the flue gas flow rate and carbon dioxide concentration detection system.

8. A carbon emission control system, characterized in that: include: A detection module is used to detect the flow rate of smoke at the chimney entrance and the concentration of carbon dioxide in the smoke; A calculation module is used to calculate the carbon capture cost C according to the flow rate of the flue gas at the chimney inlet and the concentration of carbon dioxide in the flue gas. CCS ; Determine the module for carbon capture cost based on C CCS , calculate the operating parameters of the coal-fired power generation system corresponding to the maximum total operating income I of the coal-fired power generation system; The control module is used to control the coal-fired power generation system according to the operating parameters of the coal-fired power generation system corresponding to the increase of the total operating income I of the coal-fired power generation system.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the carbon emission control method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the carbon emission control method according to any one of claims 1 to 7 are implemented.

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