Railway track full life cycle carbon emission calculation method and device

Abstract

The invention provides a railway track full life cycle carbon emission calculation method and device, and relates to the technical field of carbon emission management.The railway track full life cycle carbon emission calculation method comprises the steps that according to production materials, carbon emission in a steel rail engineering materialization stage, a track plate materialization stage, a construction stage and a dismantling and recycling stage is sequentially calculated; calculating the basic carbon emission at the reference age limit in the maintenance and repair stage according to the production materials; dividing the maintenance stage into a plurality of long-term time nodes, and summing the carbon emissions of all the long-term time nodes to obtain the carbon emission of the maintenance stage; the total carbon emission amount of the railway track engineering life cycle is obtained according to the sum of the steel rail engineering materialization stage, the track plate materialization stage, the construction and building stage, the maintenance and repair stage and the dismantling and recycling stage. And more powerful support is provided for carbon emission reduction target making and management decision making.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission management, and in particular to a method and device for calculating carbon emissions over the entire life cycle of a railway track. Background Art

[0002] According to statistics, the national railway operating mileage will reach 159,000 kilometers in 2023, and the total energy consumption of railway transportation is on the rise. As an important part of the railway and the foundation of the railway, the number and volume of track construction are increasing. As a special engineering product, the track project has a long project length, so the consumption of labor, materials and machinery is very large. However, domestic and foreign scholars have conducted few studies on carbon emissions from railway subgrade tracks. At present, there is a lack of research on carbon emission accounting models and low-carbon measures for the entire life cycle of railway projects. In addition, based on the increasing number of railway projects in my country and the background of energy conservation and emission reduction, it is of great significance to study and establish a carbon emission model for the entire life cycle of railway tracks. Summary of the invention

[0003] The purpose of the present invention is to provide a method and device for calculating carbon emissions over the entire life cycle of railway tracks to improve the above problems. In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0004] In a first aspect, the present application provides a method for calculating carbon emissions over the entire life cycle of a railway track, including:

[0005] Based on the full life cycle assessment method, the life cycle of railway track engineering is divided into the rail engineering materialization stage, track slab materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage;

[0006] Obtain the production data of the railway track project, and calculate the carbon emissions of the rail engineering materialization stage, track slab materialization stage, construction stage, and dismantling and recycling stage in sequence based on the production data;

[0007] The basic carbon emissions during the maintenance and repair phase in the base year are calculated based on the production data;

[0008] The maintenance and repair stage is divided into multiple long-term time nodes, and the carbon emissions of the maintenance and repair stage at each long-term time node are calculated based on the basic carbon emissions of the base year. The carbon emissions of all long-term time nodes are summed up to obtain the carbon emissions of the maintenance and repair stage;

[0009] The total carbon emissions of the railway track project during its life cycle are obtained by summing up the rail engineering materialization stage, track slab materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage.

[0010] In a second aspect, the present application also provides a device for calculating carbon emissions during the entire life cycle of a railway track, comprising:

[0011] Phase division module: Based on the full life cycle assessment method, the life cycle of railway track engineering is divided into the rail engineering materialization stage, track plate materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage;

[0012] The first calculation module: obtains the production data of the railway track project, and calculates the carbon emissions of the rail engineering materialization stage, track slab materialization stage, construction stage, and dismantling and recycling stage in sequence based on the production data;

[0013] The second calculation module: calculates the basic carbon emissions of the maintenance and repair stage in the base year based on the production data;

[0014] Dynamic prediction module: The maintenance and repair stage is divided into multiple long-term time nodes, and the carbon emissions of the maintenance and repair stage at each long-term time node are calculated based on the basic carbon emissions of the base year. The carbon emissions of all long-term time nodes are summed up to obtain the carbon emissions of the maintenance and repair stage;

[0015] Summation module: The total carbon emissions of the railway track project life cycle are obtained by summing up the rail engineering materialization stage, track plate materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage.

[0016] In a third aspect, the present application also provides a railway track full life cycle carbon emission calculation device, including:

[0017] Memory for storing computer programs;

[0018] A processor is used to implement the steps of the method for calculating carbon emissions over the entire life cycle of railway tracks when executing the computer program.

[0019] In a fourth aspect, the present application also provides a readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned method for calculating carbon emissions based on the entire life cycle of railway tracks are implemented.

[0020] The beneficial effects of the present invention are:

[0021] The present invention divides the life cycle of railway into the life cycle of railway track engineering into the engineering materialization stage (rail and track plate calculation), the construction stage, the maintenance and repair stage and the dismantling and recycling stage. According to engineering experience, a quantitative calculation model of carbon emissions generated in the engineering materialization stage and the construction and construction stage is constructed; in the maintenance and repair stage, according to the life cycle of the structure and engineering experience, the carbon emissions are dynamically analyzed, low-carbon emission reduction is integrated into it, and the construction process is optimized; in the dismantling and recycling stage, according to the reuse value of the materials, the total carbon emissions in the recycling stage are calculated to reduce environmental pollution. The present invention helps to more accurately calculate the carbon emissions generated by the railway track system, provide more powerful support for carbon emission reduction target formulation and management decision-making, and provide new ideas and technical support for the sustainable development of the railway track field.

[0022] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the flow chart of the method for calculating carbon emissions of railway tracks throughout their life cycle described in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a device for calculating carbon emissions over the entire life cycle of a railway track described in an embodiment of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the railway track full life cycle carbon emission calculation device described in an embodiment of the present invention.

[0027] Markings in the figure:

[0028] 800. Railway track full life cycle carbon emission calculation device; 801. Processor; 802. Memory; 803. Multimedia component; 804. I / O interface; 805. Communication component. DETAILED DESCRIPTION

[0029] 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, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] Embodiment 1:

[0032] This embodiment provides a method for calculating carbon emissions over the entire life cycle of a railway track.

[0033] See also Figure 1 , the figure shows that the method includes:

[0034] S1. Based on the full life cycle assessment method, the life cycle of railway track engineering is divided into the rail engineering materialization stage, track plate materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage;

[0035] In this embodiment, the time boundary of the track project is the entire life cycle, including from the preliminary design stage to the dismantling and recycling stage, wherein under normal use conditions of the railway track, the service life of the main structure is 100 years.

[0036] Based on the above embodiments, the method further includes:

[0037] S2. Obtain the production data of the railway track project, and calculate the carbon emissions of the rail engineering materialization stage, track slab materialization stage, construction stage, and dismantling and recycling stage in sequence based on the production data;

[0038] Specifically, step S2 includes:

[0039] S21. Calculate the carbon emissions of the rail engineering materialization stage based on the means of production. The rail engineering materialization stage includes the building materials production stage, the building materials transportation stage and the rail manufacturing stage. The carbon emissions of the rail engineering materialization stage are the sum of the carbon emissions of the three stages. The calculation formula is as follows:

[0040] C m =C1+C2+C3; (1)

[0041] Where: C m is the carbon emissions during the materialization stage of the rail engineering; C1 is the carbon emissions during the building materials production stage; C2 is the carbon emissions during the building materials transportation stage; and C3 is the carbon emissions during the rail manufacturing stage.

[0042] The processes and main sources of carbon emissions involved in the above three links are shown in Table 1:

[0043] Table 1

[0044]

[0045]

[0046] Specifically, the calculation method for carbon emissions C1 in the building materials production process is:

[0047] 1) Obtain the various building materials included in the rail project, the consumption of each building material, and the carbon emission factor of each building material from the production materials;

[0048] 2) Calculate the carbon emissions C1 of the building materials production process based on the consumption of building materials and their carbon emission factors:

[0049]

[0050] Where N represents the number of building materials; M i is the consumption of the i-th building material; c i is the carbon emission factor of the i-th building material; a i is the material loss coefficient, among which the loss coefficient of steel is usually 3% to 6%.

[0051] Specifically, the calculation method for carbon emissions in the construction materials transportation link is:

[0052] Obtain the transportation distance and carbon emission factor per unit distance of each building material, and calculate the carbon emission C2 of the transportation link based on the transportation distance and carbon emission factor per unit distance of each building material:

[0053]

[0054] Where: M i is the consumption of the i-th building material; Di is the transportation distance of the i-th building material; t i is the carbon emission factor per unit distance of the i-th building material.

[0055] Specifically, the calculation method for carbon emissions in the rail production process is:

[0056] Obtain the electricity consumption (electricity), oil consumption (petroleum), liquefied natural gas consumption (natural gas) and auxiliary material consumption of each building material in the rail production process to calculate the carbon emissions of each building material in the production process;

[0057]

[0058] Where: E i is the power consumption of the i-th main building material; c e is the carbon emission coefficient of electricity in the area where the processing plant is located; i is the oil consumption of the i-th building material; c o is the carbon emission coefficient of oil; G i is the amount of liquefied natural gas consumed by the i-th building material; c G is the carbon emission coefficient of liquefied natural gas, M is the number of auxiliary materials required for the i-th building material; A i,j is the consumption of the jth auxiliary material consumed by the i-th building material; c i is the carbon emission coefficient of the i-th auxiliary material; C0 is the amount of CO2 directly released by the welding shielding gas.

[0059] Specifically, the carbon emission factors of electricity, oil and natural gas are shown in Table 2:

[0060] Table 2

[0061] Material <![CDATA[Emission factor tCO2 / TJ]]> oil 71.87 natural gas 55.54 electricity 0.58(kg / kwh)

[0062] S22. Calculate the carbon emissions of the track slab during the materialization stage based on the production materials. The track slab materialization stage includes the material production stage, the material transportation stage, the component production stage, and the component transportation stage. The carbon emissions of the track slab during the materialization stage are the sum of the carbon emissions of the four stages. The calculation formula is as follows:

[0063] C YZ =C YZ1 +C YZ2 +C YZ3 +C YZ4 ; (5)

[0064] Where: C YZ is the total carbon emission of the track slab during the materialization stage; C YZ1 is the carbon emission in the material production stage; C YZ2 is the carbon emission in the material transportation stage; C YZ3is the carbon emission in the component production stage; C YZ4 is the carbon emissions during the component transportation stage.

[0065] Specifically, the carbon emissions in the material production stage are C YZ1 The calculation method is:

[0066] 1) Obtain the various materials required for the track slab from the production materials, the consumption of each material in production, and the carbon emission factor of each material;

[0067] 2) Calculate the carbon emissions during the material production stage based on the consumption of production materials and their carbon emission factors;

[0068]

[0069] Where: T represents the amount of material required for the prefabrication process; Q yt is the consumption of the tth material; c mt is the carbon emission factor of the tth material.

[0070] Specifically, the carbon emissions during the material transportation phase are C YZ2 The calculation method is:

[0071] Obtain the transportation method, transportation distance and carbon emission factor of each material to calculate the carbon emissions of the material transportation stage:

[0072]

[0073] Where: R represents the number of types of transportation; L1 yt,r is the distance that the tth material is transported using the rth mode of transportation; c yr is the carbon emission factor of the rth mode of transportation. The carbon emission factors of different modes of transportation are shown in Table 3:

[0074] Table 3

[0075]

[0076] Specifically, the carbon emissions during the component production phase are C YZ3 The calculation method is:

[0077] 1) Obtain the various components of track slab production and the energy and labor required for each component;

[0078] 2) Calculate the carbon emissions C during the component production stage based on the energy and labor required to produce each component per unit volume. YZ3 :

[0079]

[0080] Where: S is the total amount of components; F1 ys,r G is the mass of the rth energy required to produce the sth component per unit volume; ys is the completed volume of the sth component; c er is the carbon emission factor of the rth energy source; R1 ys is the labor consumption required to produce the sth component per unit volume; c o is the carbon emission factor of human activities.

[0081] Specifically, the carbon emissions during the component transportation phase are C YZ4 The calculation method is:

[0082] Obtain the transportation method and transportation distance selected for each component to calculate the carbon emissions during the component transportation stage:

[0083]

[0084] Where: L2 ys,r G is the distance that the sth component is transported using the rth mode of transportation; ys is the completed volume of the sth component; c yr is the carbon emission factor of the rth mode of transportation.

[0085] S23. Calculate the carbon emissions during the construction phase based on the means of production. Specifically, the carbon emissions during the construction phase mainly include three parts: carbon emissions from building material processing, electricity consumption, oil consumption, gas consumption of on-site construction machinery and equipment, and labor consumption;

[0086] Specifically, step S23 includes:

[0087] S231. Obtain from the means of production the various materials used in the construction phase, the consumption of each material, and the carbon emission factor of each material; specifically, the materials include concrete and steel;

[0088] The concrete consumption Q conc for:

[0089] Q conc =U conc ×L; (10)

[0090] Where: U conc is the engineering quantity of laying concrete sleepers per unit length, and L is the total length of the line.

[0091] The steel consumption Q steel for:

[0092]

[0093] Where: NR is the number of main lines; ρ R is the rail type; L is the total length of the line; is the dcth Total length of steel used for turnout; N DC is the total number of turnouts in the line; T u is the total number of turnout types.

[0094] S232. Calculate the carbon emissions of each component based on the consumption of each component and its carbon emission factor:

[0095] C SG1 =Q conc ×c conc +Q steel ×c steel ; (12)

[0096] Where: c steel is the carbon emission factor of steel; Q conc is the amount of concrete; Q steel is the amount of steel used; c conc is the carbon emission factor of concrete;

[0097] S233. Obtain various components produced during the construction phase and the mechanical tools used for each component, as shown in Table 4:

[0098] Table 4

[0099]

[0100] S234. Obtain the completed volume of each component, and calculate the carbon emissions generated by the construction of the component using mechanical tools according to the completed volume of the component;

[0101] S235. Carbon emissions from the construction of all components constitute the carbon emissions of machine tools:

[0102]

[0103] Where: F yh,m,l G is the mass of the mth energy consumed by the lth mechanical equipment in the construction of the hth component per unit volume; yh is the completed volume of the hth type of component in the track engineering; c em is the carbon emission factor of the mth energy source.

[0104] S236. Obtain the labor consumption required for the construction of each component, and calculate the carbon emissions of labor based on the labor consumption:

[0105]

[0106] Where: Ryh is the labor consumption per unit volume of the hth type of component in the track project; c o is the carbon emission factor of human activities.

[0107] S237. The carbon emissions of the construction phase are the sum of the carbon emissions of building materials, the carbon emissions of machinery and tools, and the carbon emissions of labor. SG :

[0108] C SG =C SG1 +C SG2 +C SG3 ; (15)

[0109] S24. Calculate the carbon emissions during the dismantling and recycling phase based on the production materials;

[0110] Specifically, the demolition and recycling stage is the reverse process of construction. The processes that generate carbon emissions include: mechanical tool construction, manual construction, and transportation of building materials. However, some of the dismantled materials can be recycled and reused, which can reduce the carbon emissions caused by material production.

[0111] Therefore, the calculation method for carbon emissions in the demolition and recycling stage is:

[0112] C CC =C E +C R +C YS -C HS ; (16)

[0113] Where: C CC is the total carbon emissions from the dismantling and recycling phase; C E Carbon emissions from construction machinery used; C R Carbon emissions generated by construction personnel; C YS Carbon emissions from the transportation of materials for demolition; C HS Reduction of carbon emissions due to partial material recycling.

[0114] Based on the above embodiments, the method further includes:

[0115] S3. Calculate the basic carbon emissions of the maintenance and repair phase in the base year based on the production data;

[0116] Specifically, step S3 includes:

[0117] S31. Obtain from the production materials the structures that need to be maintained during the maintenance and repair phase, the length of the structures, and the carbon emission factors of the structures maintained during the base period;

[0118] S32. Calculate the carbon emission C of the structure maintenance based on the length of the structure and the corresponding carbon emission factor YY1 :

[0119]

[0120] Where: N s is the number of roadbed sections along the entire railway line; L ls , L ts are the length of the sth roadbed section and its rail length after repair respectively; g ls , g ts is the carbon emission factor for the roadbed and rail maintenance process, that is, the engineering experience value related to the length.

[0121] S33. Obtain the number of replacements of curved track sections during the maintenance and repair phase, the amount of steel used, and the carbon emission factor of steel in the base years;

[0122] S34. Calculate the carbon emission of replacing the rails based on the number of replacements of the curved track, the amount of steel used, and the carbon emission factor of the steel in the base years;

[0123] Specifically, during the long-term operation of the railway, the track of the curved section will be damaged due to wheel-rail contact. The replacement cycle of the curved section track is related to the radius, and the calculation method is as follows:

[0124]

[0125] Where: I(R c ) is the curve radius R c The critical value of rail passing quality; I is the actual annual passing quality of trains; TR c The radius of the curve is R c The replacement cycle of rails in curved sections.

[0126] Therefore, the number of track changes for the curved segment is Where T represents the service life of the railway line.

[0127] It can be seen that the carbon emissions of replacing rails are C YY2 for:

[0128]

[0129] Where: W(R c ) is a single replacement radius R c The amount of rail used in the curve section; c steel is the carbon emission factor of steel.

[0130] S35. The carbon emissions from maintaining structures and replacing rails constitute the basic carbon emissions C during the maintenance and repair phase in the base year.YY :

[0131] C YY =C YY1 +C YY2 ; (20)

[0132] Based on the above embodiments, the method further includes:

[0133] S4. Divide the maintenance and repair stage into multiple long-term time nodes, calculate the carbon emissions of the maintenance and repair stage at each long-term time node based on the basic carbon emissions of the base year, and sum up the carbon emissions of all long-term time nodes to obtain the carbon emissions of the maintenance and repair stage;

[0134] Specifically, step S4 includes:

[0135] S41. Obtain the carbon intensity decay index e and the peak annual carbon intensity E0;

[0136] In this embodiment, carbon intensity refers to the carbon dioxide emissions per unit of GDP. Generally speaking, the carbon intensity index decreases with technological progress and economic growth. Since carbon emission demand is directly related to the scale and level of economic development, the larger the scale and the higher the level, the greater the demand, and vice versa. However, when it reaches a certain level, the carbon emission demand tends to stabilize and continue to decline. The specific carbon intensity calculation is as follows:

[0137]

[0138] In the formula: E is carbon intensity; C is carbon emissions; G is my country's GDP.

[0139] S42. A carbon intensity decay model is constructed based on the carbon intensity decay index and the peak annual carbon intensity. The carbon intensity decay model represents the decline of carbon intensity over time after reaching the peak value. The expression is:

[0140]

[0141] Where: E t is the carbon intensity in the tth year; E0 is the peak annual carbon intensity; Δt is the time difference between the base year (t0) and the base year (t0) in the tth year (Δt = t-t0); G t G0 and G1 are the GDP values ​​of my country in a certain year (t) and the base year (t0) respectively.

[0142] S43. Calculate the time difference t′-t0 between the long-term time node t′ and the base period;

[0143] S44. Calculate the carbon emissions at the future time node based on the carbon intensity decay model, time difference and basic carbon emissions:

[0144]

[0145] In the formula, C YY is the carbon emissions in the base year; is the carbon emission in year t′.

[0146] The carbon emissions at all long-term time nodes are summed up to get the carbon emissions during the maintenance and repair phase:

[0147]

[0148] In the formula, C′ YY is the carbon emission in the maintenance and repair stage after adjustment; T(R) is the replacement cycle of curved rails in the maintenance and repair stage; T f It is the long-term time node of the whole life cycle of railway;

[0149] Based on the above embodiments, the method further includes:

[0150] S5. The total carbon emissions of the railway track engineering life cycle are obtained by summing up the rail engineering materialization stage, track slab materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage:

[0151] C emission =C m +C YZ +C SG +C′ YY +C CC ; (25)

[0152] Where: C emission is the total carbon emissions during the life cycle of the rail project.

[0153] Through the above-mentioned implementation method, the present invention can more comprehensively and accurately evaluate the carbon emissions of the railway track system, fill the gaps and omissions in the calculation of green rail transit, help to more accurately understand the carbon emissions generated by the railway track system, and provide more powerful support for carbon reduction target formulation and management decisions.

[0154] Embodiment 2:

[0155] like Figure 2 As shown, this embodiment provides a device for calculating carbon emissions over the entire life cycle of a railway track, the device comprising:

[0156] Phase division module: Based on the full life cycle assessment method, the life cycle of railway track engineering is divided into the rail engineering materialization stage, track plate materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage;

[0157] The first calculation module: obtains the production data of the railway track project, and calculates the carbon emissions of the rail engineering materialization stage, track slab materialization stage, construction stage, and dismantling and recycling stage in sequence based on the production data;

[0158] The second calculation module: calculates the basic carbon emissions of the maintenance and repair stage in the base year based on the production data;

[0159] Dynamic prediction module: The maintenance and repair stage is divided into multiple long-term time nodes, and the carbon emissions of the maintenance and repair stage at each long-term time node are calculated based on the basic carbon emissions of the base year. The carbon emissions of all long-term time nodes are summed up to obtain the carbon emissions of the maintenance and repair stage;

[0160] Summation module: The total carbon emissions of the railway track project life cycle are obtained by summing up the rail engineering materialization stage, track plate materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage.

[0161] Based on the above embodiment, the first calculation module includes:

[0162] The first acquisition unit: obtains various building materials included in the rail project, the consumption of each building material, and the carbon emission factor of each building material from the production materials;

[0163] The first calculation unit: Calculate the carbon emissions of raw material production based on the consumption of building materials and their carbon emission factors;

[0164] The second calculation unit: obtains the transportation distance of each building material and the carbon emission factor per unit distance, and calculates the carbon emission of the building material transportation link according to the transportation distance of each building material and the carbon emission factor per unit distance;

[0165] The second acquisition unit: acquires the electricity consumption, oil consumption, liquefied natural gas consumption and auxiliary material consumption of each building material in the rail production process to calculate the carbon emissions of each building material in the production process;

[0166] The first summation unit: the carbon emissions of rail production are composed of the carbon emissions of all building materials in the production process.

[0167] Based on the above embodiment, the first calculation module further includes:

[0168] The third acquisition unit: obtains various materials required for the track slab, the consumption of each material in production, and the carbon emission factor of each material from the production materials;

[0169] The third calculation unit: calculates the carbon emissions in the material production stage based on the consumption of production materials and their carbon emission factors;

[0170] The fourth calculation unit: obtaining the transportation mode, transportation distance and carbon emission factor of each transportation mode selected for each material, so as to calculate the carbon emission amount in the material transportation stage;

[0171] The fourth acquisition unit: acquires various components of the track plate production and the energy and labor consumption required for each component;

[0172] The fifth calculation unit: calculates the carbon emissions during the component production phase based on the energy and labor required for each component;

[0173] The sixth calculation unit: obtaining the transportation method and transportation distance selected for each component to calculate the carbon emissions during the component transportation stage.

[0174] Based on the above embodiment, the first calculation module further includes:

[0175] The fifth acquisition unit: obtains various materials used in the construction phase, the consumption of each material, and the carbon emission factor of each component from the production materials;

[0176] The seventh calculation unit: Calculate the carbon emission of each material based on the consumption of each material and its carbon emission factor;

[0177] The sixth acquisition unit: acquires various components produced during the construction phase and the mechanical tools used for each component;

[0178] The eighth calculation unit: obtaining the completed volume of each component, and calculating the carbon emissions generated by the construction of the component using mechanical tools according to the completed volume of the component;

[0179] Second summation unit: the carbon emissions of machine tools are composed of the carbon emissions generated by the construction of all components;

[0180] The ninth calculation unit: obtain the labor consumption required for the construction of each component, and calculate the carbon emissions of labor based on the labor consumption;

[0181] The third summation unit: The carbon emissions during the construction phase are composed of the sum of the carbon emissions of building materials, the carbon emissions of machinery and tools, and the carbon emissions of labor.

[0182] Based on the above embodiment, the second calculation module includes:

[0183] The seventh acquisition unit: obtains the structures that need to be maintained during the maintenance and repair phase, the length of the structures, and the carbon emission factors of the structures maintained in the base years from the production materials;

[0184] The tenth calculation unit: Calculate the carbon emission of the maintenance structure according to the length of the structure and the corresponding carbon emission factor;

[0185] The eighth acquisition unit: obtains the number of replacements of curved track sections, the amount of steel used, and the carbon emission factor of steel in the base years during the maintenance and repair phase;

[0186] Calculation unit 11: Calculate the carbon emissions of rail replacement based on the number of replacements of curved track, steel usage, and the carbon emission factor of steel in the base years;

[0187] The fourth summation unit: The carbon emissions from maintaining structures and replacing rails constitute the basic carbon emissions during the maintenance and repair phase in the benchmark years.

[0188] Based on the above embodiment, the dynamic prediction module includes:

[0189] The ninth acquisition unit: obtaining the carbon intensity decay index and peak annual carbon intensity;

[0190] Model building unit: building a carbon intensity decay model based on the carbon intensity decay index and peak annual carbon intensity;

[0191] Calculation Unit 12: Calculate the time difference between the long-term time node and the base period;

[0192] Thirteenth calculation unit: Calculate the carbon emissions at a distant time node based on the carbon intensity decay model, time difference and basic carbon emissions.

[0193] It should be noted that, regarding the device in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment of the method, and will not be elaborated here.

[0194] Embodiment 3:

[0195] Corresponding to the above method embodiment, this embodiment also provides a railway track full life cycle carbon emission calculation device. The railway track full life cycle carbon emission calculation device described below and the railway track full life cycle carbon emission calculation method described above can refer to each other.

[0196] Figure 3 FIG. 8 is a block diagram of a railway track life cycle carbon emission calculation device 800 according to an exemplary embodiment. Figure 3 As shown, the railway track life cycle carbon emission calculation device 800 may include: a processor 801 and a memory 802. The railway track life cycle carbon emission calculation device 800 may also include one or more of a multimedia component 803, an I / O interface 804, and a communication component 805.

[0197] The processor 801 is used to control the overall operation of the railway track life cycle carbon emission calculation device 800 to complete all or part of the steps in the above-mentioned railway track life cycle carbon emission calculation method. The memory 802 is used to store various types of data to support the operation of the railway track life cycle carbon emission calculation device 800. These data may include, for example, instructions for any application or method used to operate on the railway track life cycle carbon emission calculation device 800, as well as application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The memory 802 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, disk or optical disk. The multimedia component 803 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 802 or sent via the communication component 805. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 804 provides an interface between the processor 801 and other interface modules, and the above-mentioned other interface modules can be keyboards, mice, buttons, etc. These buttons can be virtual buttons or physical buttons. The communication component 805 is used for wired or wireless communication between the railway track life cycle carbon emission calculation device 800 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding communication component 805 can include: Wi-Fi module, Bluetooth module, NFC module.

[0198] In an exemplary embodiment, the railway track life cycle carbon emission calculation device 800 can be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, referred to as ASIC), digital signal processors (Digital Signal Processing Device, referred to as DSP), digital signal processing devices (Digital Signal Processing Device, referred to as DSPD), programmable logic devices (Programmable Logic Device, referred to as PLD), field programmable gate arrays (Field Programmable Gate Array, referred to as FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned railway track life cycle carbon emission calculation method.

[0199] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the above-mentioned railway track life cycle carbon emission calculation method are implemented. For example, the computer-readable storage medium can be the above-mentioned memory 802 including program instructions, and the above-mentioned program instructions can be executed by the processor 801 of the railway track life cycle carbon emission calculation device 800 to complete the above-mentioned railway track life cycle carbon emission calculation method.

[0200] Embodiment 4:

[0201] Corresponding to the above method embodiment, a readable storage medium is also provided in this embodiment. The readable storage medium described below and the method for calculating the carbon emissions of the entire life cycle of railway tracks described above can refer to each other.

[0202] A readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the method for calculating the carbon emissions of railway tracks throughout their life cycle in the above-mentioned method embodiment.

[0203] The readable storage medium may specifically be a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or other readable storage medium that can store program codes.

[0204] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0205] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for calculating carbon emissions over the entire life cycle of railway tracks, characterized in that: include: Based on the full life cycle assessment method, the life cycle of railway track engineering is divided into the rail engineering materialization stage, track slab materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage; Obtain the production data of the railway track project, and calculate the carbon emissions of the rail engineering materialization stage, track slab materialization stage, construction stage, and dismantling and recycling stage in sequence based on the production data; The basic carbon emissions during the maintenance and repair phase in the base year are calculated based on the production data; The maintenance and repair stage is divided into multiple long-term time nodes, and the carbon emissions of the maintenance and repair stage at each long-term time node are calculated based on the basic carbon emissions of the base year. The carbon emissions of all long-term time nodes are summed up to obtain the carbon emissions of the maintenance and repair stage; The total carbon emissions of the railway track project during its life cycle are obtained by summing up the rail engineering materialization stage, track slab materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage.

2. The method for calculating carbon emissions over the entire life cycle of railway tracks according to claim 1 is characterized in that ,Calculate the carbon emissions of the rail engineering materialization stage based on the production materials, which includes the construction materials production link, construction materials transportation link and rail production link, including: From the production materials, obtain the various building materials included in the rail project, the consumption of each building material, and the carbon emission factor of each building material; The carbon emissions of building materials production are calculated based on the consumption of building materials and their carbon emission factors; Obtain the transportation distance and carbon emission factor per unit distance of each building material, and calculate the carbon emissions of the building material transportation link based on the transportation distance and carbon emission factor per unit distance of each building material; Obtain the electricity consumption, oil consumption, liquefied natural gas consumption and auxiliary material consumption of each building material in the rail production process to calculate the carbon emissions of each building material in the production process; The carbon emissions from the rail production process are composed of the carbon emissions from all building materials in the production process.

3. The method for calculating carbon emissions over the entire life cycle of railway tracks according to claim 1 is characterized in that ,Calculate the carbon emissions of the track slab materialization stage based on the production data, the track slab materialization stage includes the material production stage, material transportation stage, component production stage and component transportation stage, including: Obtain the various materials required for the track slab from the production materials, the consumption of each material in production, and the carbon emission factor of each material; The carbon emissions during the material production stage are calculated based on the consumption of production materials and their carbon emission factors; Obtain the transportation mode, transportation distance and carbon emission factor of each transportation mode for each material to calculate the carbon emissions during the material transportation stage; Obtain the various components produced by the prefabricated track slab project and the energy and labor required for each component; The carbon emissions during the component production phase are calculated based on the energy and labor required to produce each component per unit volume; The transportation method and distance selected for each component are obtained to calculate the carbon emissions during the component transportation stage.

4. The method for calculating carbon emissions over the entire life cycle of railway tracks according to claim 1 is characterized in that , the basic carbon emissions of the maintenance and repair stage in the base year are calculated based on the production data, including: Obtain the structures that need to be maintained during the maintenance and repair phase, the length of the structures, and the carbon emission factors of maintaining the structures in the base years from the production materials; The carbon emission of the structure maintenance is calculated based on the length of the structure and the corresponding carbon emission factor; Obtain the number of replacements of curved track sections during the maintenance and repair phase, the amount of steel used, and the carbon emission factor of steel in the base years; The carbon emissions from replacing rails are calculated based on the number of times the curved track is replaced, the amount of steel used, and the carbon emission factor of steel in the base years. The basic carbon emissions during the maintenance and repair phase in the base year are composed of the carbon emissions from maintaining structures and replacing rails.

5. The method for calculating carbon emissions over the entire life cycle of railway tracks according to claim 1 is characterized in that , the maintenance and repair stage is divided into multiple long-term time nodes, and the carbon emissions of the maintenance and repair stage at each long-term time node are calculated based on the basic carbon emissions of the base year, including: Obtain the carbon intensity decay index and peak annual carbon intensity; A carbon intensity decay model was constructed based on the carbon intensity decay index and peak annual carbon intensity; Calculate the time difference between the forward time point and the base period; The carbon emissions at future time nodes are calculated based on the carbon intensity decay model, time difference and basic carbon emissions.

6. A device for calculating carbon emissions during the entire life cycle of railway tracks, characterized in that: include: Phase division module: Based on the full life cycle assessment method, the life cycle of railway track engineering is divided into the rail engineering materialization stage, track plate materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage; The first calculation module: obtains the production data of the railway track project, and calculates the carbon emissions of the rail engineering materialization stage, track slab materialization stage, construction stage, and dismantling and recycling stage in sequence based on the production data; The second calculation module: calculates the basic carbon emissions of the maintenance and repair stage in the base year based on the production data; Dynamic prediction module: The maintenance and repair stage is divided into multiple long-term time nodes, and the carbon emissions of the maintenance and repair stage at each long-term time node are calculated based on the basic carbon emissions of the base year. The carbon emissions of all long-term time nodes are summed up to obtain the carbon emissions of the maintenance and repair stage; Summation module: The total carbon emissions of the railway track project life cycle are obtained by summing up the rail engineering materialization stage, track plate materialization stage, construction stage, maintenance and repair stage, and dismantling and recycling stage.

7. The railway track full life cycle carbon emission calculation device according to claim 6, characterized in that: The first calculation module includes: The first acquisition unit: obtains various building materials included in the rail project, the consumption of each building material, and the carbon emission factor of each building material from the production materials; The first calculation unit: calculates the carbon emissions of the building materials production process based on the consumption of building materials and their carbon emission factors; The second calculation unit: obtains the transportation distance of each building material and the carbon emission factor per unit distance, and calculates the carbon emission of the building material transportation link according to the transportation distance of each building material and the carbon emission factor per unit distance; The second acquisition unit: acquires the electricity consumption, oil consumption, liquefied natural gas consumption and auxiliary material consumption of each building material in the rail production process to calculate the carbon emissions of each building material in the production process; The first summation unit: the carbon emissions of rail production are composed of the carbon emissions of all building materials in the production process.

8. The railway track life cycle carbon emission calculation device according to claim 6, characterized in that: The first calculation module also includes: The third acquisition unit: obtains various materials required for the track slab, the consumption of each material in production, and the carbon emission factor of each material from the production materials; The third calculation unit: calculates the carbon emissions in the material production stage based on the consumption of production materials and their carbon emission factors; The fourth calculation unit: obtaining the transportation mode, transportation distance and carbon emission factor of each transportation mode selected for each material, so as to calculate the carbon emission amount in the material transportation stage; The fourth acquisition unit: acquires various components of the track plate production and the energy and labor consumption required for each component; The fifth calculation unit: calculates the carbon emissions of the component production stage according to the energy and labor consumption per unit volume of each component production; The sixth calculation unit: obtaining the transportation method and transportation distance selected for each component to calculate the carbon emissions during the component transportation stage.

9. The railway track life cycle carbon emission calculation device according to claim 6, characterized in that: The second calculation module includes: The seventh acquisition unit: obtains the structures that need to be maintained during the maintenance and repair phase, the length of the structures, and the carbon emission factors of the structures maintained in the base years from the production materials; The tenth calculation unit: Calculate the carbon emission of the maintenance structure according to the length of the structure and the corresponding carbon emission factor; The eighth acquisition unit: obtains the number of replacements of curved track sections during the maintenance and repair phase, the amount of steel used, and the carbon emission factor of steel in the base years; Calculation unit 11: Calculate the carbon emissions of rail replacement based on the number of replacements of curved track, steel usage, and the carbon emission factor of steel in the base years; The fourth summation unit: The carbon emissions from maintaining structures and replacing rails constitute the basic carbon emissions during the maintenance and repair phase in the benchmark years.

10. The railway track life cycle carbon emission calculation device according to claim 6, characterized in that: The dynamic prediction module comprises: The ninth acquisition unit: obtaining the carbon intensity decay index and peak annual carbon intensity; Model building unit: building a carbon intensity decay model based on the carbon intensity decay index and peak annual carbon intensity; Calculation Unit 12: Calculate the time difference between the long-term time node and the base period; Thirteenth calculation unit: Calculate the carbon emissions at a distant time node based on the carbon intensity decay model, time difference and basic carbon emissions.

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