Power equipment carbon emission quantitative construction system

Abstract

The invention discloses a power equipment carbon emission quantitative construction system, in which a production stage product carbon footprint accounting quantitative model is used for accurately calculating various carbon emissions generated in a production link on the basis of preliminary budget data; the product distribution and retail stage quantitative model is used for receiving the preliminary budget data and accounting carbon emission generated in the whole logistics process on the basis of the preliminary budget data; and the waste material recycling stage carbon footprint accounting model is used for receiving the preliminary budget data and calculating carbon emission after the power equipment is scrapped on the basis of the preliminary budget data. The system can support the quantitative analysis of the carbon emission of the complex power equipment, enriches the model library of the carbon emission of the power equipment, and provides a solid foundation and reference basis for the carbon emission of other power equipment.

Description

Technical Field

[0001] This invention belongs to the technical field of carbon emission measurement of power equipment, and specifically relates to a system for quantifying carbon emissions from power equipment. Background Technology

[0002] The power industry accounts for over 40% of the nation's total carbon emissions. Electricity is a central link in energy transition and a key area for carbon reduction. Power equipment, as the main carrier of the power grid, generates carbon emissions during its manufacturing, operation, maintenance, and decommissioning. These emissions are a major reason for the persistently high carbon emissions from the power grid. Therefore, conducting carbon emission accounting for power equipment is a crucial path to formulating power grid emission reduction strategies. The key to this accounting lies in the construction of the accounting model, which should adhere to the principles of relevance, completeness, consistency, and uniformity to increase the preparedness and reliability of the accounting results.

[0003] In terms of constructing carbon emission quantification models for engineering construction, numerous studies on carbon emission quantification models based on the LCA method have been conducted both domestically and internationally for different construction scenarios. The research mainly focuses on fields such as construction and cold chain. While many domestic scholars have also conducted research on carbon footprint models for equipment manufacturing, most domestic and international equipment carbon emission quantification models are concentrated on certain parts and processing techniques. Although there has been some research on product-level carbon emission quantification models, these are mainly for equipment with relatively simple production processes. There is still a lack of carbon emission quantification models for complex equipment systems, especially for complex electrical main equipment such as converter valves and transformers. This seriously hinders the green and low-carbon innovative development of power equipment manufacturing. Summary of the Invention

[0004] (a) Purpose of the invention The purpose of this invention is to provide a system for quantifying carbon emissions from power equipment. This system can support the quantification of carbon emissions from complex power equipment, enrich the carbon emission quantification model library for power equipment, and provide a foundation and reference for the quantification of carbon emissions from other power equipment.

[0005] (II) Technical Solution To address the aforementioned problems, a first aspect of the present invention provides a system for quantifying carbon emissions from power equipment. This system includes a product carbon footprint assessment model, a production-stage product carbon footprint accounting and quantification model, a product distribution and retail-stage quantification model, and a closed-loop accounting model for waste material recycling. The system comprises: The product carbon footprint measurement and assessment model is used to develop a full-process measurement approach and assessment framework, and to output preliminary budget data. A product carbon footprint accounting and quantification model for the production stage is used to receive the preliminary budget data and, based on the preliminary budget data, accurately calculate various carbon emissions generated in the production process. A quantitative model for the product distribution and retail stages is used to receive the preliminary budget data and, based on the preliminary budget data, calculate the carbon emissions generated throughout the entire logistics process. A carbon footprint accounting model for the waste material recycling stage is used to receive the preliminary budget data and, based on the preliminary budget data, calculate the carbon emissions after the power equipment is scrapped.

[0006] Preferably, the product carbon footprint measurement and assessment model is used for: Determine the system boundary for calculating the carbon footprint of the valve tower; By defining the system boundary as the limiting range, carbon emission sources can be accurately identified; Based on the aforementioned carbon emission sources, a quantitative model of the valve tower's carbon footprint is constructed; The valve tower carbon footprint quantification model is optimized and iterated to generate a product carbon footprint measurement and evaluation model.

[0007] Preferably, the process of accurately identifying carbon emission sources is systematically analyzed using a life cycle assessment method.

[0008] Preferably, the carbon footprint accounting and quantification model for the production stage is used for: A multi-product carbon emission accounting model is constructed to output a standardized accounting algorithm based on the preliminary budget data; A closed-loop carbon emission accounting model is constructed to calculate the carbon emissions of material circulation within the production process based on the standard accounting algorithm. By combining the multi-product carbon emission accounting model and the closed-loop system carbon emission accounting model, a complex production carbon emission accounting model is constructed. The complex production carbon emission accounting model is optimized and iterated to generate a quantitative model for calculating the carbon footprint of products in the production stage.

[0009] Preferably, the product distribution and retail stage quantitative model is used for: Based on the preliminary budget data, collect the core data of the target product; Based on the aforementioned core data, the accounting rules for the combined transportation scenario are determined; Based on the aforementioned accounting rules, supplement the key transportation parameters; Based on the core data and key parameters, a quantitative model for the product distribution and retail stage is constructed.

[0010] Preferably, the carbon footprint accounting model for the waste material recycling stage includes: an open-loop carbon footprint accounting model for waste material recycling and reuse and a closed-loop carbon footprint accounting model for waste material recycling and reuse.

[0011] Preferably, the core data of the target product includes: the sales volume of the target product, the sales destination, the transportation distance to each destination, and the distribution volume.

[0012] Preferably, the accounting rules for determining the combined transport scenario include: Determine whether the target product is to be transported together with other products; If combined transportation is used, carbon emission accounting shares are allocated according to product weight; if product weight cannot be determined, carbon emission accounting shares are allocated according to product volume.

[0013] Preferably, the system boundaries include cradle to gate and cradle to grave.

[0014] Preferably, the cradle to gate includes a product transportation stage, and the cradle to grave includes a product transportation stage, a consumer use stage, and a recycling stage.

[0015] (III) Beneficial Effects The above-mentioned technical solution of the present invention has the following beneficial technical effects: The present invention provides a system for quantifying carbon emissions of power equipment. The present invention mainly models the stages of raw material acquisition, production and manufacturing, distribution and retail, use, and waste recycling of power equipment. It mainly includes four models: a product carbon footprint measurement and evaluation model, a production stage product carbon footprint accounting and quantification model, a product distribution and retail stage quantification model, and a waste material recycling stage carbon footprint accounting model. Firstly, the product carbon footprint measurement and evaluation model establishes a full-process measurement approach and evaluation framework, and outputs preliminary budget data. Secondly, it conducts in-depth research on product carbon emissions in the complex production stage, constructing a production stage product carbon footprint accounting and quantification model. Finally, it conducts in-depth research on product carbon emissions in the complex waste recycling stage, establishing a waste material recycling stage carbon footprint accounting model. This application can support the quantitative assessment of the carbon footprint of power equipment throughout its entire life cycle, helping to identify important emission processes, key emission equipment, and major influencing factors in each stage of the product life cycle, and assisting enterprises in establishing emission reduction measures. Attached Figure Description

[0016] Figure 1 This is a flowchart of the system for quantifying carbon emissions from power equipment according to the present invention; Figure 2 This is an overall architecture diagram of the carbon emission quantification construction system according to a specific embodiment of the present invention; Figure 3 This is a diagram of the product carbon footprint measurement and evaluation model architecture according to a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the system boundary according to a specific embodiment of the present invention; Figure 5This is a schematic diagram of the valve tower carbon footprint optimization model according to a specific embodiment of the present invention; Figure 6 This is a multi-product carbon emission accounting model according to a specific embodiment of the present invention; Figure 7 This is a closed-loop carbon emission accounting model according to a specific embodiment of the present invention; Figure 8 This is a complex production carbon emission accounting model according to a specific embodiment of the present invention; Figure 9 This is a quantitative model of the product distribution and retail stage according to a specific embodiment of the present invention; Figure 10 This is an open-loop carbon footprint accounting model for the recycling and reuse of waste materials according to a specific embodiment of the present invention; Figure 11 This is a closed-loop accounting model for the recycling and reuse of waste materials according to a specific embodiment of the present invention; Figure 12 This is the production process flow of the valve tower according to a specific embodiment of the present invention; Figure 13 This refers to data collection and inventory analysis in a specific embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of common knowledge and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts of the invention.

[0018] like Figure 1 As shown, this invention provides a system for quantifying carbon emissions from power equipment. This system includes a product carbon footprint measurement and assessment model, a product carbon footprint accounting and quantification model for the production stage, a product distribution and retail stage quantification model, and a carbon footprint accounting model for the waste material recycling stage, wherein: (1) Product carbon footprint measurement and assessment model, used to formulate the whole process measurement approach and assessment framework, and output preliminary budget data, specifically used for: 1.1 Determine the system boundary for calculating the carbon footprint of the valve tower; 1.2, Using the system boundary as a defined scope, accurately identify carbon emission sources. The process of accurately identifying carbon emission sources adopts a life cycle assessment method for system analysis. 1.3 Based on the aforementioned carbon emission sources, a quantitative model for the carbon footprint of the valve tower is constructed; 1.4 The carbon footprint quantification model of the valve tower is optimized and iterated to generate a product carbon footprint measurement and evaluation model.

[0019] (2) A product carbon footprint accounting and quantification model for the production stage, used to receive the preliminary budget data and, based on the preliminary budget data, accurately calculate various carbon emissions generated in the production process, specifically used for: 2.1 Construct a multi-product carbon emission accounting model to output a standardized accounting algorithm based on the preliminary budget data; 2.2 Construct a closed-loop carbon emission accounting model to calculate the carbon emissions of material circulation within the production process based on the standard accounting algorithm described above; 2.3, Combining the multi-product carbon emission accounting model and the closed-loop system carbon emission accounting model, a complex production carbon emission accounting model is constructed; 2.4 Optimize and iterate the complex production carbon emission accounting model to generate a quantitative model for calculating the carbon footprint of products in the production stage.

[0020] (3) A quantitative model for the product distribution and retail stage, used to receive the preliminary budget data and, based on the preliminary budget data, calculate the carbon emissions generated throughout the logistics process, specifically including: 3.1 The construction of a quantitative model for the product distribution and retail stages includes: 3.2 Based on the preliminary budget data, collect the core data of the target product, which includes: the sales volume of the target product, the sales destination, the transportation distance to each destination, and the sales volume per unit area.

[0021] 3.3 Based on the aforementioned core data, the accounting rules for the combined transportation scenario are determined, specifically including: 3.31 Determine whether the target product is transported together with other products; 3.32 If combined transportation is involved, the carbon emission accounting share shall be allocated according to the product weight; if the product weight cannot be determined, the carbon emission accounting share shall be allocated according to the product volume.

[0022] 3.4 Supplement key transportation parameters according to the aforementioned accounting rules; 3.5 Based on the core data and key parameters, construct a quantitative model for the product distribution and retail stage.

[0023] (4) A carbon footprint accounting model for the waste material recycling stage, used to receive the preliminary budget data and calculate the carbon emissions after the power equipment is scrapped based on the preliminary budget data. The carbon footprint accounting model for the waste material recycling stage includes: an open-loop carbon footprint accounting model for waste material recycling and reuse and a closed-loop carbon footprint accounting model for waste material recycling and reuse.

[0024] The present invention takes the carbon emission quantification of ultra-high voltage converter valve towers (hereinafter referred to as valve towers) as an example to construct a carbon emission quantification model. The present invention adopts the LCA (Life Cycle Assessment) method for modeling, and the modeling boundary ranges from "cradle" to "grave", mainly focusing on the stages of power equipment raw material acquisition, production and manufacturing, distribution and retail, use, and waste recycling.

[0025] The present invention provides a system for quantifying carbon emissions from power equipment, such as... Figure 2 As shown, the main components include the construction of carbon footprint data measurement and evaluation models for power equipment products (product carbon footprint measurement and evaluation model), carbon footprint accounting and quantification models for the production stage, carbon footprint accounting models for the product distribution and retail stage, and carbon footprint accounting models for the waste disposal and recycling stage (carbon footprint accounting models for the waste material recycling stage).

[0026] The construction of the carbon footprint data measurement and assessment model for power equipment products includes several stages, such as... Figure 3 As shown: Taking a valve tower as an example, the first step is to determine the boundary of the valve tower carbon footprint calculation system and identify carbon emission sources. Then, the valve tower carbon footprint quantification model is constructed, followed by the construction of the valve tower carbon footprint optimization model.

[0027] The process of calculating the carbon footprint of valve towers involves defining the system boundaries and identifying carbon emission sources, including defining the objectives, clarifying product types and key technical parameters, selecting functional units / declared units, defining system boundaries, identifying carbon emission sources, and collecting data. The overall objective of conducting product carbon footprint research is to calculate the potential contribution of a product to global warming (expressed as carbon dioxide equivalent (CO2e)) by quantifying all significant GHG emissions and removals throughout the product's lifecycle or selected processes, in accordance with trade-off criteria. Product carbon footprint quantification can support stakeholders in achieving a range of objectives and applications, including but not limited to independent studies, comparative studies, and long-term performance tracking. Clarifying product types and key technical parameters includes defining the product category (primary or secondary equipment), and key technical parameters such as rated voltage, rated current, rated power, rated capacity, service life, and operating years.

[0028] Functional units refer to the benchmark units used to quantify the functions of a product. For example, a 1100kV converter valve tower with a mass of 11,400kg used for the mutual conversion between AC and DC in an ultra-high voltage power transmission system has a carbon footprint of (*) kgCO2e over a lifespan of 35 years from cradle to grave.

[0029] The declared unit refers to the benchmark unit used to quantify a portion of a product's carbon footprint. For example, the carbon footprint of a 1100kV converter valve tower with a mass of 11,400 kg used for AC and DC conversion in an ultra-high voltage power transmission system, including the raw material acquisition and product manufacturing stages, is (*) kgCO2e.

[0030] The system boundary is defined as either "cradle to gate" or "cradle to grave." "Cradle to gate" includes "cradle to door" and "cradle to door-to-door." The "cradle to door" boundary extends from raw material extraction to the product leaving the factory gate, excluding transportation and consumer use. It is primarily used to assess the environmental impact of the product's production process. The "cradle to door-to-door" boundary extends from raw material extraction to the product reaching the customer or the next production stage at the factory gate. This boundary includes transportation but excludes consumer use. It is primarily used to assess the environmental impact of product production and transportation. "Cradle to grave" extends from raw material acquisition to product disposal. This boundary includes transportation, consumer use, and final disposal or recycling. It is primarily used to assess the environmental impact of the product throughout its entire lifecycle, from production to final disposal or recycling. Based on the overall purpose of conducting product carbon footprint research, selecting appropriate accounting boundaries allows for more accurate calculation of the product's carbon footprint, leading to a better understanding of the environmental impact throughout the product's lifecycle and promoting sustainable product development. Taking valve tower carbon footprint accounting as an example, the system boundary is as follows: Figure 4 Due to the large size and weight of valve towers, they are difficult to transport. Instead, components are transported to the site for assembly and testing. Considering the unique manufacturing and assembly characteristics of valve towers, their carbon footprint accounting only considers two boundaries: cradle-to-grave and cradle-to-door (including on-site assembly and testing). For on-site assembly and testing, the energy consumption boundary must be clearly defined, and the calculation of energy carbon emissions must consider the regional carbon emission factor, selecting the energy consumption carbon emission factor corresponding to the installation location.

[0031] Carbon emission source identification is a crucial step in quantifying greenhouse gas emissions throughout a product's entire lifecycle and requires systematic analysis based on Life Cycle Assessment (LCA) methods. Using the lifecycle framework, carbon emission sources at each stage are identified. Core emission nodes can be identified by drawing process diagrams, graphically representing each link and process and indicating their relationships and sequence. Symbols, arrows, and text are used to clearly describe key information such as inputs, outputs, energy consumption, and emissions for each link and process. The valve tower manufacturing process is divided into two main stages: in-plant manufacturing and on-site installation, involving modular component production, precision assembly, clean environment control, and multi-system integration. The detailed process flow is as follows: The valve tower manufacturing process flow is as follows... Figure 12 .

[0032] After completing the above steps, the valve tower carbon footprint quantification model is built by collecting data and conducting inventory analysis. Data collection involves a thorough understanding and clear description of each unit process, including quantitative and qualitative descriptions of inputs and outputs, determination of process start and end points, and quantitative and qualitative descriptions of unit process functions. Data can be categorized into the following themes: 1) Energy input, raw material input, auxiliary input, and other physical inputs; 2) Products, co-products, and waste; 3) Emissions to air, water, land, and other environmental factors; 4) Other environmental factors. Within these themes, individual data types need further refinement. For example, emissions to air can be specified by specific data types, such as carbon monoxide, carbon dioxide, sulfur oxides, and nitrogen oxides. During data collection, continuous data review and quality evaluation are conducted, data is linked to unit processes and functional units, and data is appropriately merged to establish a suitable valve tower carbon footprint quantification model. The main steps of data collection and inventory analysis are as follows: Figure 13 (Refer to GB / T24044).

[0033] This study addresses the unique characteristics of each stage and attributable process throughout the valve tower's lifecycle. Focusing on energy supply, energy consumption, process emissions, and key aspects, it employs a quality-function configuration method to investigate key influencing factors of carbon footprint in the valve tower's entire material and energy flow processes. It also explores low-carbon technologies such as new energy substitution, intelligent control, raw material substitution, process substitution, and optimization techniques. The study clarifies the carbon footprint constraints of the valve tower under existing supply chains, value chains, energy types, industrial layouts, and industrial chain structures. Furthermore, it conducts sensitivity and uncertainty analysis of low-carbon multi-constraint optimization of the valve tower's carbon footprint, considering energy consumption, process efficiency, and material consumption. The study seeks optimal solutions for optimization models under various typical product scenarios and different settings, establishing a lifecycle carbon footprint evaluation and optimization method. Based on this, a valve tower carbon footprint optimization model is constructed. Figure 5 As shown.

[0034] The construction of the carbon footprint accounting and quantification model for the production stage includes a multi-product system carbon emission accounting model for the entire production process, a closed-loop recycling system carbon emission accounting model for the entire production process, and a complex production system carbon emission accounting model that optimizes recycling efficiency throughout the entire production process. The first step in constructing each of these three sub-models is to review and analyze the requirements and criteria for establishing allocation procedures in the GHG protocol, PAS 2050, and ISO 14067 international standards and the national standard GB / T 24067. The construction of a carbon emission accounting model for a multi-product system across the entire production process involves two main steps. First, a survey and analysis of the technological flow and carbon emission characteristics of the entire valve tower production process is conducted to identify key emission units, collect activity level datasets, and determine the boundaries between primary and secondary product systems. A complex production system carbon emission accounting model is then constructed by mapping the activity level datasets to key emission units. Second, the allocation method for this complex production system carbon emission accounting model, encompassing key emission units, is studied. Based on allocation principles such as output, quality, cost, or price, the allocation procedure is iteratively applied to reconstruct the accounting model. Figure 6 .

[0035] The construction of a carbon emission accounting model for a closed-loop system covering the entire production process, such as... Figure 7 As shown, this paper first analyzes the typical valve tower circulating material list, circulating path, regeneration circulating pretreatment process flow and its carbon emission characteristics, refines the pretreatment process units, and constructs a closed-loop circulating system for the entire production process. Second, it summarizes the circulating material list, integrates the mapping relationship between the circulating unit process and the original dataset, iterates the allocation program according to the allocation principles of output, quality, cost or price, and reconstructs the circulating system accounting model based on the influencing indicators such as the material recycling rate in the production and manufacturing stage, and establishes a carbon emission accounting model for the closed-loop circulating system of the entire production process.

[0036] The construction of a carbon emission accounting model for a complex production system that optimizes recycling efficiency across the entire production process, such as... Figure 8 As shown, firstly, combining the carbon emission accounting model of a multi-product system across the entire production process and the carbon emission accounting model of a closed-loop system across the entire production process, the allocation method for typical equipment in complex production systems is used to collect data sources (product flow and material flow) under complex production systems. The carbon emission characteristics of the production process across the entire production process are analyzed, and an efficiency optimization model is constructed with the maximum circulating material list, important emission process units, and minimum circulating path. Secondly, based on influencing parameters such as recycling rate and number of cycles, the allocation procedure of the circulating efficiency optimization model is developed. Data-driven product flow, material flow, and energy flow data are used to analyze the data list and continuously optimize the model. The construction of a quantitative model for the product distribution and retail stage first involves understanding the sales volume and destinations of the target product within a specific timeframe, as well as the transportation distance and distribution volume to each destination, all of which are primary considerations. Secondly, it's necessary to consider whether the target product is transported together with other products. If so, allocation should prioritize product weight, followed by volume. If the carbon footprint is calculated using the transportation mileage method, the total transportation mileage for each product category should be considered. Additionally, it's crucial to collect information on transportation methods, including vehicle type (diesel, gasoline, or electric), and select appropriate transportation carbon emission factors. Finally, allocation is based on sales volume in each region, building an accounting model for the transportation stage to calculate the carbon emissions per unit of product during transportation. Figure 9 As shown.

[0037] The construction of carbon footprint accounting models for the waste disposal and recycling stages includes carbon footprint accounting models for open-loop recycling systems and closed-loop recycling systems. For example... Figure 10 As shown, this paper describes the construction of a carbon footprint accounting model for an open-loop recycling system of waste materials. It investigates and analyzes the waste material recycling process in the valve tower industry chain, establishes methods for dividing and subdividing unit processes in the open-loop system, and develops a carbon emission characteristic model. The paper also studies the allocation principles of unit processes with output, quality, cost, or price control, and constructs an open-loop accounting model for waste recycling. Based on the model, unit datasets are collected, unit processes with unavailable datasets are reconstructed and merged, and the allocation procedure is iteratively applied to continuously optimize the accounting model.

[0038] like Figure 11 The paper describes the construction of a closed-loop recycling system accounting model for waste materials. It investigates and analyzes recyclable waste materials and their pretreatment processes and procedures within the valve tower industry chain. Based on process characteristics, it establishes methods for dividing and subdividing unit processes within the closed-loop system and a carbon emission characteristic model. The paper studies the allocation principles of unit processes with output, quality, cost, or price control, and constructs a closed-loop recycling accounting model for waste materials. Based on the model, it collects unit datasets and, according to the allocation principles of output, quality, cost, or price, expands product functions to avoid generating unit processes with unavailable datasets. The allocation procedure is iteratively applied to continuously optimize the accounting model.

[0039] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries. Those skilled in the art will understand that embodiments of the invention can be provided as methods, systems, or computer program products. Therefore, the invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the invention can take the form of a computer program product embodied 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. These computer program instructions can also be stored in a computer-readable storage medium capable of directing a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means implemented in a process. Figure 1 One or more processes and / or boxes Figure 1The functions specified in one or more boxes. Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it includes the flows of the embodiments of the methods described above. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc. The steps in the methods of the embodiments of the present invention can be adjusted, merged, and deleted according to actual needs. The modules in the system of the embodiments of the present invention can be merged, divided, and deleted according to actual needs.

Claims

1. A system for quantifying carbon emissions from power equipment, characterized in that, The power equipment carbon emission quantification system includes a product carbon footprint measurement and assessment model, a product carbon footprint accounting and quantification model for the production stage, a product distribution and retail stage quantification model, and a carbon footprint accounting model for the waste material recycling stage, wherein: The product carbon footprint measurement and assessment model is used to develop a full-process measurement approach and assessment framework, and to output preliminary budget data. The production stage carbon footprint accounting and quantification model is used to receive the preliminary budget data and, based on the preliminary budget data, calculate various types of carbon emissions generated in the production process. The product distribution and retail stage quantitative model is used to receive the preliminary budget data and, based on the preliminary budget data, calculate the carbon emissions generated throughout the logistics process. The carbon footprint accounting model for the waste material recycling stage is used to receive the preliminary budget data and, based on the preliminary budget data, calculate the carbon emissions after the power equipment is scrapped.

2. The power equipment carbon emission quantification construction system according to claim 1, characterized in that, The product carbon footprint measurement and assessment model is used for: Determine the system boundary for calculating the carbon footprint of the valve tower; Carbon emission sources are identified within the defined system boundary. Based on the aforementioned carbon emission sources, a quantitative model of the valve tower's carbon footprint is constructed; The valve tower carbon footprint quantification model is optimized and iterated to generate a product carbon footprint measurement and evaluation model.

3. The power equipment carbon emission quantification construction system according to claim 2, characterized in that, The process of accurately identifying carbon emission sources is systematically analyzed using a life cycle assessment method.

4. The power equipment carbon emission quantification model construction system according to claim 1, characterized in that, The production stage product carbon footprint accounting and quantification model is used for: A multi-product carbon emission accounting model is constructed to output a standardized accounting algorithm based on the preliminary budget data; A closed-loop carbon emission accounting model is constructed to calculate the carbon emissions of material circulation within the production process based on the standard accounting algorithm. By combining the multi-product carbon emission accounting model and the closed-loop system carbon emission accounting sub-model, a complex production carbon emission accounting model is constructed. The complex production carbon emission accounting model is optimized and iterated to generate a quantitative model for calculating the carbon footprint of products in the production stage.

5. The power equipment carbon emission quantification construction system according to claim 1, characterized in that, The quantitative model for the product distribution and retail stages is used for: Based on the preliminary budget data, collect the core data of the target product; Based on the aforementioned core data, the accounting rules for the combined transportation scenario are determined; Based on the aforementioned accounting rules, supplement the key transportation parameters; Based on the core data and key parameters, a quantitative model for the product distribution and retail stage is constructed.

6. The power equipment carbon emission quantification construction system according to claim 1, characterized in that, The carbon footprint accounting model for the waste material recycling stage includes: an open-loop carbon footprint accounting model for waste material recycling and reuse and a closed-loop carbon footprint accounting model for waste material recycling and reuse.

7. The power equipment carbon emission quantification construction system according to claim 5, characterized in that, The core data of the target product includes: sales volume, sales destinations, transportation distances to various destinations, and sales volume per unit area.

8. The power equipment carbon emission quantification construction system according to claim 5, characterized in that, The accounting rules for determining the combined transport scenario include: Determine whether the target product is to be transported together with other products; If combined transportation is used, carbon emission accounting shares are allocated according to product weight; if product weight cannot be determined, carbon emission accounting shares are allocated according to product volume.

9. The power equipment carbon emission quantification construction system according to claim 2, characterized in that, The system boundaries include cradle to gate and cradle to grave.

10. The power equipment carbon emission quantification construction system according to claim 9, characterized in that, The cradle-to-gate concept includes the product transportation stage, while the cradle-to-grave concept includes the product transportation stage, the consumer use stage, and the recycling stage.

Images