Calculation method and device for workshop carbon emission
By comprehensively calculating the carbon emissions of each link in the workshop, the problems of inaccurate calculation and limited applicability in existing technologies are solved, and comprehensive, accurate calculation and visual management of the workshop's carbon emissions are achieved.
Patent Information
- Application Number
- CN202380094045.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-28
- Publication Date
- 2025-10-03
AI Technical Summary
Existing technologies lack comprehensiveness and accuracy when calculating carbon emissions in workshops, cannot be applied to all types of machine tools and processing methods, and have a limited scope of applicability.
By obtaining energy consumption and time data of public infrastructure, working media, personnel and workpiece storage, and combining it with machine tool energy consumption and carbon emissions from each link in the processing process, the carbon emissions of workpiece processing, public infrastructure, working media, personnel and workpiece storage are calculated, and the total carbon emissions of the workshop are comprehensively calculated.
It improves the accuracy and applicability of workshop carbon emissions calculations, takes into account carbon emissions from all aspects of the workshop, provides visualization of historical, real-time and predicted carbon emissions data, and supports carbon reduction decisions.
Smart Images
Figure CN120752663A_ABST
Abstract
Description
Technical Field
[0001] The present invention mainly relates to the field of industrial digitalization, and in particular to a method and device for calculating carbon emissions in a workshop. Background Art
[0002] Manufacturing is a major energy consumer. According to the International Energy Agency's International Energy Outlook, manufacturing accounts for 33% of energy consumption and 38% of carbon emissions. To reduce carbon emissions from environmental pollutants, the development of low-carbon manufacturing models has attracted widespread attention.
[0003] There are currently three main methods for calculating the carbon emissions of a workshop. The first method is based on an empirical model, which directly links the electricity consumption of the workshop manufacturing process to carbon emissions. The empirical model converts the electricity consumption of the workshop manufacturing process into the carbon emissions of the process. This method is only applicable to evaluating the carbon emissions of high-energy-consuming industries, companies or regions; the second method is based on processing capacity. The power of the machine tool under different processing states is different. By accumulating the energy consumption of each processing state of the machine tool during the processing, the carbon emissions of the machine tool are calculated based on the energy consumption of each processing state of the machine tool. This method is only applicable to specific processing methods or specific machine tools; the third method is based on machine components. Machine tool components include servo motors, bearing motors, tool magazines and emulsion pumps, etc. The energy consumption of the machine tool can be obtained by adding the energy consumption of all energy-consuming components. The carbon emissions of the machine tool can be calculated based on the energy consumption of the machine tool. However, this method is also only applicable to the carbon emissions of cutting machine tools. Summary of the Invention
[0004] In order to solve the above technical problems, the present invention provides a method and device for calculating the carbon emissions of a workshop, so as to improve the accuracy and applicability of the calculation of the carbon emissions of a workshop.
[0005] To achieve the above-mentioned objectives, the present invention proposes a method for calculating the carbon emissions of a workshop, the calculation method comprising: obtaining the energy consumption of public infrastructure, the flow rate and usage time of each working medium, the number of staff and the working hours of each staff member, the number of stored workpieces and the processing time of each workpiece; calculating the carbon emissions of public infrastructure according to the energy consumption of the public infrastructure, calculating the carbon emissions of working media according to the flow rate and usage time of each working medium, calculating the carbon emissions of personnel according to the number of staff and the working hours of each staff member, and calculating the carbon emissions of workpiece storage according to the number of stored workpieces and the processing time of each workpiece; calculating the carbon emissions of each workpiece in each process step, adding up the carbon emissions of all workpieces in all process steps to obtain the carbon emissions of workpiece processing; adding up the carbon emissions of workpiece processing, the carbon emissions of public infrastructure, the carbon emissions of working media, the carbon emissions of personnel and the carbon emissions of workpiece storage to obtain the carbon emissions of the workshop. To this end, the carbon emissions of the workshop can be obtained by adding the carbon emissions of workpiece processing, public infrastructure, working media, personnel and workpiece storage. This takes into account all aspects of the workshop's carbon emissions, improves the accuracy of the workshop's carbon emissions calculation, and is not limited to the type of machine tools, thereby increasing the scope of applicability of workshop carbon emissions.
[0006] Optionally, calculating the carbon emissions of each workpiece in each process step and summing the carbon emissions of all workpieces in all process steps to obtain the workpiece processing carbon emissions includes calculating the buffer carbon emissions, processing carbon emissions, transportation carbon emissions, and machine tool depreciation carbon emissions of each workpiece in each process step, and summing the buffer carbon emissions, processing carbon emissions, transportation carbon emissions, and machine tool depreciation carbon emissions of all workpieces in all process steps to obtain the workpiece processing carbon emissions. To this end, a method for calculating workpiece processing carbon emissions is provided.
[0007] Optionally, calculating the machining carbon emissions of each workpiece in each process step includes: obtaining the energy consumption of the machine tool, calculating the direct carbon emissions of the machine tool based on the energy consumption of the machine tool, calculating the carbon emissions of cutting fluid, lubricating oil, cutting tools, and waste treatment, calculating the indirect carbon emissions of the machine tool based on the cutting fluid, lubricating oil, cutting tools, and waste treatment, and adding the direct and indirect carbon emissions of the machine tool to obtain the machining carbon emissions of the workpiece in the process step. To this end, a method for calculating machining carbon emissions is provided.
[0008] Optionally, calculating the direct carbon emissions of the machine tool based on the energy consumption of the machine tool includes: obtaining the machine tool's minimum no-load power, spindle speed, depth of cut, feed rate, and cutting speed; calculating the no-load power of the machine tool based on the spindle speed; calculating the additional load power and cutting power of the machine tool based on the depth of cut, feed rate, and cutting speed; and calculating the direct carbon emissions of the machine tool based on the minimum no-load power of the machine tool, the no-load power of the machine tool, the additional load power, and the cutting power. To this end, a method for calculating the direct carbon emissions of a machine tool is provided.
[0009] Optionally, the calculation method further includes providing a graphical user interface that displays historical carbon emission data, real-time carbon emission data, and predicted carbon emission data for each machine tool in the workshop. This allows users to intuitively understand the carbon emissions of each machine tool and make decisions to reduce carbon emissions.
[0010] The present invention also proposes a device for calculating the carbon emissions of a workshop, which includes: an acquisition module for acquiring the energy consumption of public infrastructure, the flow rate and usage time of each working medium, the number of staff and the working time of each staff member, the number of stored workpieces and the processing time of each workpiece; a first calculation module for calculating the carbon emissions of public infrastructure according to the energy consumption of the public infrastructure, calculating the carbon emissions of working media according to the flow rate and usage time of each working medium, calculating the carbon emissions of personnel according to the number of staff and the working time of each staff member, and calculating the carbon emissions of workpiece storage according to the number of stored workpieces and the processing time of each workpiece; a second calculation module for calculating the carbon emissions of each workpiece in each process step, adding up the carbon emissions of all workpieces in all process steps to obtain the carbon emissions of workpiece processing; a third calculation module for adding up the carbon emissions of workpiece processing, the carbon emissions of the public infrastructure, the carbon emissions of the working media, the carbon emissions of personnel and the carbon emissions of workpiece storage to obtain the carbon emissions of the workshop.
[0011] Optionally, the second calculation module calculates the carbon emissions of each workpiece in each process step, adds up the carbon emissions of all workpieces in all process steps, and obtains the workpiece processing carbon emissions, including: calculating the buffer carbon emissions, processing carbon emissions, transportation carbon emissions and machine tool depreciation carbon emissions of each workpiece in each process step, and adding up the buffer carbon emissions, processing carbon emissions, transportation carbon emissions and machine tool depreciation carbon emissions of all workpieces in all process steps to obtain the workpiece processing carbon emissions.
[0012] Optionally, the second calculation module calculates the processing carbon emissions of each workpiece in each process step, including: obtaining the energy consumption of the machine tool, calculating the direct carbon emissions of the machine tool based on the energy consumption of the machine tool, calculating the carbon emissions of cutting fluid, carbon emissions of lubricating oil, carbon emissions of cutting tools, and carbon emissions of waste treatment, calculating the indirect carbon emissions of the machine tool based on the cutting fluid carbon emissions, carbon emissions of lubricating oil, carbon emissions of cutting tools, and carbon emissions of waste treatment, adding the direct carbon emissions of the machine tool and the indirect carbon emissions of the machine tool to obtain the processing carbon emissions of the workpiece in the process step.
[0013] Optionally, the second calculation module calculates the direct carbon emissions of the machine tool based on the energy consumption of the machine tool, including: obtaining the minimum no-load power of the machine tool, the spindle speed of the machine tool, the depth of cut, the feed rate and the cutting speed, calculating the no-load power of the machine tool according to the spindle speed of the machine tool, calculating the additional load power and cutting power of the machine tool according to the depth of cut, the feed rate and the cutting speed, and calculating the direct carbon emissions of the machine tool according to the minimum no-load power of the machine tool, the no-load power of the machine tool, the additional load power of the machine tool and the cutting power.
[0014] Optionally, the computing device further includes a display module: the display module provides a graphical user interface, on which historical carbon emission data, real-time carbon emission data and predicted carbon emission data of each machine tool in the workshop are displayed.
[0015] The present invention also provides an electronic device, comprising a processor, a memory, and instructions stored in the memory, wherein the instructions implement the above-mentioned method when executed by the processor.
[0016] The present invention also provides a computer-readable storage medium having computer instructions stored thereon. When the computer instructions are executed, the method described above is executed.
[0017] The present invention also provides a computer program product, comprising a computer program, which implements the above method when executed by a processor. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.
[0019] Figure 1 is a flow chart of a method for calculating carbon emissions of a workshop according to one embodiment of the present invention;
[0020] Figure 2 is a schematic diagram of carbon emissions in a component manufacturing process according to an embodiment of the present invention;
[0021] Figure 3is a schematic diagram of the hierarchical structure of carbon emissions of a workshop according to an embodiment of the present invention;
[0022] Figure 4 is a schematic diagram of a graphical user interface for workshop carbon emissions according to an embodiment of the present invention;
[0023] Figure 5 is a schematic diagram of a device for calculating carbon emissions of a workshop according to an embodiment of the present invention;
[0024] Figure 6 is a schematic diagram of an electronic device according to an embodiment of the present invention.
[0025] Description of Reference Numerals
[0026] 100 Calculation Method
[0027] Steps 110-140
[0028] 20 blanks
[0029] P1 Process 1
[0030] 21-1 Process 1 Buffer
[0031] 22-1 Processing
[0032] 23-1 Process-Transfer
[0033] Pm process m
[0034] 21-m process m buffer
[0035] 22-m process m processing
[0036] 23-m process m transmission
[0037] 24 parts
[0038] 400 Graphical User Interface
[0039] 401-405 area
[0040] 500 computing devices
[0041] 510 Get Module
[0042] 520 First Computing Module
[0043] 530 Second Computing Module
[0044] 540 Third Computing Module
[0045] 600 Electronic Equipment
[0046] 610 processor
[0047] 620 memory DETAILED DESCRIPTION
[0048] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.
[0049] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0050] As used in this application and the claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not intended to refer to the singular but may include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.
[0051] This invention proposes a method for calculating the carbon emissions of a workshop. Figure 1 FIG. 1 is a flow chart of a method 100 for calculating carbon emissions of a workshop according to an embodiment of the present invention. Figure 1 As shown, the calculation method 100 includes:
[0052] Step 110 , obtaining the energy consumption of public infrastructure, the flow rate and usage time of each working medium, the number of workers and the working time of each worker, the number of stored workpieces and the processing time of each workpiece.
[0053] Public facilities are facilities in the workshop that are not related to production, including lighting and heating. The energy consumption of public facilities can be obtained through the workshop's energy management system. Working media are media related to production, including industrial water and compressed gas. The flow rate of each working medium can be obtained using an on-site flow meter, and the usage time of each working medium can be obtained from the supplier. The number of staff members and their working hours can be obtained through the personnel management system. The number of stored workpieces and the processing time for each workpiece can also be obtained through the warehouse management system.
[0054] Step 120, calculate the carbon emissions of public infrastructure based on the energy consumption of public infrastructure, calculate the carbon emissions of working media based on the flow rate and usage time of each working medium, calculate the carbon emissions of personnel based on the number of staff and the working hours of each staff, and calculate the carbon emissions of workpiece storage based on the number of stored workpieces and the processing time of each workpiece.
[0055] The carbon emissions of public infrastructure can be calculated based on the energy consumption of public infrastructure using formula (1):
[0056] C pu =E pu ×F e #(1)
[0057] Among them, C pu represents the carbon emissions of public infrastructure, E pu represents the energy consumption of public infrastructure, F e It represents the carbon emission factor in units of (kgCO2 / (KW*h)). The carbon emission factor varies in different regions and can be obtained by looking up the table.
[0058] Formula (2) can be used to calculate the carbon emissions of the working medium based on the flow rate and usage time of each working medium.
[0059] C wm =∑Q k ×T k ×F wm #(2)
[0060] Among them, C wm Indicates the carbon emissions of the working medium, Q k represents the flow rate of the kth working medium, T k Indicates the applicable time of the kth working medium, F wm Indicates the carbon emission factor of the working medium.
[0061] Formula (3) can be used to calculate the carbon emissions of workpiece storage based on the number of stored workpieces and the processing time of each workpiece.
[0062] C st =n×ES×T span ×F e #(3)
[0063] Among them, C st represents the carbon emissions of workpiece storage, n represents the number of stored workpieces, ES represents the energy consumption of a single stored workpiece per unit time, T span Indicates the processing time of the workpiece in the workshop, F e represents the carbon emission factor.
[0064] For personnel carbon emissions C pe , which can be calculated by multiplying the number of staff, the working hours of each staff member and the staff carbon emission factor.
[0065] Step 130 , calculating the carbon emission amount of each workpiece in each process step, and summing up the carbon emission amount of all workpieces in all process steps to obtain the carbon emission amount of workpiece processing.
[0066] A product consists of multiple workpieces, and a workpiece is obtained through multiple process steps. By calculating the carbon emissions of each workpiece in each process step and adding up the carbon emissions of all workpieces in all process steps, the workpiece processing carbon emissions can be obtained. The workpiece processing carbon emissions represent the carbon emissions generated by the workpiece during the processing process. The workpiece processing carbon emissions can be expressed by formula (4):
[0067]
[0068] Among them, C p Indicates the carbon emissions from workpiece processing, represents the carbon emissions from workpiece processing of the i-th workpiece.
[0069] In step 140 , the carbon emissions of parts processing, public facilities, working medium, operators, and parts storage are added together to obtain the carbon emissions of the shop floor.
[0070] By adding the carbon emissions of workpiece processing, public infrastructure, working media, personnel and workpiece storage, we can get the carbon emissions of the workshop. This takes into account all aspects of the workshop's carbon emissions, improves the accuracy of the workshop's carbon emissions calculation, and is not limited to the type of machine tools, which increases the scope of applicability of workshop carbon emissions.
[0071] The carbon emissions of the workshop can be expressed by formula (5) by adding the carbon emissions of workpiece processing, public infrastructure, working medium, personnel and workpiece storage.
[0072] C shop =C pu +C wm +C pe +C st +C p #(5)
[0073] Among them, C shop Indicates the carbon emissions of the workshop, C pu represents the carbon emissions of public infrastructure, C wmIndicates the carbon emissions of the working medium, C pe Indicates personnel carbon emissions, C st represents the carbon emissions of workpiece storage, C p Indicates the carbon emissions from workpiece processing.
[0074] In some embodiments, calculating the carbon emissions of each workpiece in each process step, adding up the carbon emissions of all workpieces in all process steps, and obtaining the workpiece processing carbon emissions includes: calculating the buffer carbon emissions, processing carbon emissions, transportation carbon emissions, and machine tool depreciation carbon emissions of each workpiece in each process step, and adding up the buffer carbon emissions, processing carbon emissions, transportation carbon emissions, and machine tool depreciation carbon emissions of all workpieces in all process steps to obtain the workpiece processing carbon emissions. Specifically, the workpiece will be temporarily stored in a buffer zone after completing one process step and before the next process step begins. The carbon emissions generated by the workpiece being temporarily stored in the buffer zone are the buffer carbon emissions; the carbon emissions generated by the transportation of the workpiece from one process step to the next process step are the transportation carbon emissions; the machine tool will have a certain amount of depreciation during the processing process, and the carbon emissions corresponding to the depreciation are the machine tool depreciation carbon emissions; the carbon emissions generated by the processing of the workpiece in the process step are the workpiece processing carbon emissions.
[0075] Calculate the buffering carbon emissions (buffering), machining carbon emissions (machining), transportation carbon emissions (transportation) and machine tool depreciation carbon emissions (machine tool depreciation) of each workpiece in each process step. The sum of the buffering carbon emissions, machining carbon emissions, transportation carbon emissions and machine tool depreciation carbon emissions of all workpieces in all process steps can be expressed by formula (6):
[0076]
[0077] in, represents the carbon emissions from machining the i-th workpiece, represents the buffered carbon emissions, represents the carbon emissions from processing, represents the carbon emissions from machine tool depreciation, Represents the carbon emissions from transportation.
[0078] The buffered carbon emissions can be calculated using formulas (7)-(9) Carbon emissions from machine tool depreciation and transportation carbon emissions
[0079]
[0080] Among them, EC represents the energy consumption of a single workpiece buffer per unit time, represents the buffer time of workpiece i before process step j, F e represents the carbon emission factor,
[0081]
[0082] in, represents the processing time of workpiece i in process step j, represents the working time of the machine tool in process step j of workpiece i, M ij represents the number of machine tools in process step j of workpiece i, F md Represents the depreciated carbon emission factor, the unit is KgCO2 / t.
[0083]
[0084] Among them, M ij represents the number of workpiece i after process step j-1, F represents the transmission distance of workpiece i from process step j-1 to process step j, tr represents the transport carbon emission factor.
[0085] Figure 2 is a schematic diagram of carbon emissions in a component processing process according to an embodiment of the present invention, such as Figure 2 As shown, the blank 20 is processed into a component 24 through process P1 to process Pm. Process 1 includes buffering 21-1, processing 22-1 and transportation 23-1. Buffering 21-1 produces buffering carbon emissions 21-1-ce, processing 22-1 produces processing carbon emissions 22-1-ce1 and machine tool depreciation carbon emissions 22-1-ce2, and transportation 23-1 produces transportation carbon emissions 23-1-ce. By adding the buffer carbon emissions, processing carbon emissions, machine tool depreciation carbon emissions and transportation carbon emissions in all processes, the carbon emissions of workpiece processing can be calculated.
[0086] In some embodiments, calculating the processing carbon emissions of each workpiece in each process step includes: obtaining the energy consumption of the machine tool, calculating the direct carbon emissions of the machine tool based on the energy consumption of the machine tool, calculating the carbon emissions of cutting fluid, carbon emissions of lubricating oil, carbon emissions of cutting tools, and carbon emissions of waste treatment, calculating the indirect carbon emissions of the machine tool based on the carbon emissions of cutting fluid, carbon emissions of lubricating oil, carbon emissions of cutting tools, and carbon emissions of waste treatment, adding the direct carbon emissions of the machine tool and the indirect carbon emissions of the machine tool to obtain the processing carbon emissions of the workpiece in the process step.
[0087] The sum of the direct carbon emissions and indirect carbon emissions of machine tools can be expressed by formula (10):
[0088] C m =C d +Ci #(10)
[0089] Among them, C m Indicates the carbon emissions from processing, C d Indicates direct carbon emissions, C i Indicates indirect carbon emissions.
[0090] Obtain the energy consumption of the machine tool. Based on the energy consumption of the machine tool, the direct carbon emissions of the machine tool can be expressed by formula (11):
[0091] C d =F e ×E d #(11)
[0092] Among them, C d Indicates direct carbon emissions, F e represents the carbon emission factor, E d Indicates the energy consumption of the machine tool.
[0093] According to the carbon emissions of cutting fluid, lubricating oil, cutting tool and waste treatment, the indirect carbon emissions of the tool can be expressed by formula (11):
[0094] C i =C f +C s +C t +C w #(12)
[0095] Among them, C i Indirect carbon emissions, C f Indicates the carbon emissions of cutting fluid, C s Indicates the carbon emissions of lubricating oil, C t Indicates the carbon emissions of the tool, C w represents the carbon emissions from waste treatment,
[0096] The carbon emissions of cutting fluid can be calculated using formula (13):
[0097]
[0098] Among them, C f Indicates the carbon emissions of cutting fluid, t c Indicates cutting time, T f Indicates the cutting fluid replacement cycle, F f represents the carbon emission factor of cutting fluid, V f Indicates the amount of cutting fluid, F wa represents the carbon emission factor of wastewater treatment, ρ represents the density of cutting fluid usage,
[0099] The carbon emissions of lubricating oil can be calculated using formula (14):
[0100]
[0101] Among them, C s represents the carbon emissions of lubricating oil, t c Indicates cutting time, t e Indicates tool change time, t u Indicates the no-load time, t s Indicates the waiting time, T sm Indicates the lubricating oil replacement cycle, F s represents the carbon emission factor of lubricating oil, V s Indicates the amount of lubricating oil used.
[0102] The carbon emissions of the tool can be calculated using formula (15):
[0103]
[0104] Among them, C t Indicates the carbon emission of the tool, t c Indicates cutting time, T t Indicates the service life of the tool after a single sharpening, N indicates the number of tool sharpening times, F t Indicates the carbon emission factor of tool wear, M t Indicates tool quality,
[0105] The carbon emissions from waste treatment can be calculated using formula (16):
[0106] C w =M w ×(δ×F w1 +(1-δ)×F w2 )#(16)
[0107] Among them, C w Represents carbon emissions from waste treatment, M w represents the waste mass, δ represents the recovery rate, F w1 Represents the recycled carbon emission factor, F w2 represents the treatment carbon emission factor,
[0108] In some embodiments, calculating the direct carbon emissions of a machine tool based on the energy consumption of the machine tool includes: obtaining the minimum no-load power of the machine tool, the spindle speed of the machine tool, the depth of cut, the feed rate and the cutting speed; calculating the no-load power of the machine tool based on the spindle speed of the machine tool; calculating the additional load power and cutting power of the machine tool based on the depth of cut, the feed rate and the cutting speed; and calculating the direct carbon emissions of the machine tool based on the minimum no-load power of the machine tool, the no-load power of the machine tool, the additional load power of the machine tool and the cutting power.
[0109] The operation of a machine tool includes four states: waiting, no-load, load, and tool change. The state between the time the machine tool is powered on and waiting and the spindle is rotating is called the waiting state; the state when the spindle is rotating but the tool is away from the workpiece and not cutting (i.e., no load) is called the no-load state; the state when the tool begins to contact the workpiece (with load) for cutting is called the load state; after one cut, when the tool is away from the workpiece for tool change, the spindle stops for tool change, and the machine tool is still powered on. This state is called the tool change state. The direct carbon emissions of the machine tool can be calculated based on the machine tool's minimum no-load power, machine tool no-load power, machine tool additional load power, and cutting power using formula (18).
[0110] E d =P s ×t s +P e ×t e +P u ×t u +(P u +P a +P c )×t c #(18)
[0111] Among them, E d Indicates the energy consumption of the machine tool, P s Indicates waiting power, t s Indicates the waiting time, P e Indicates tool change power, t e Indicates tool change time, P u Indicates no-load power, t u Indicates the no-load time, P a Indicates the additional load loss power, P c Indicates cutting power, t c Indicates cutting time.
[0112] When the machine tool is waiting or changing tools, the spindle of the machine tool will stop rotating. At this time, the power of the machine tool is the lowest no-load power P uo , then wait for power P s And tool change power P e It can be expressed by formula (19):
[0113] P s =P e =P uo #(19)
[0114] Among them, P s Indicates waiting power, P e Indicates tool change power, P uo Indicates the minimum no-load power.
[0115] When the machine tool is running stably, its no-load power P uIt has a quadratic function relationship with the machine tool spindle speed and can be expressed by formula (20):
[0116] P u =P uo +K1w+K2w 2 #(20)
[0117] Among them, P u Indicates no-load power, P uo Indicates the minimum no-load power, K1 and K2 indicate the coefficients related to the machine tool spindle speed, and w indicates the machine tool spindle speed.
[0118] When a machine tool transitions from no-load state to loaded state, additional load loss power P will be generated. a and cutting power P c , there is an approximate linear relationship between the additional load power and the cutting power, which can be expressed by formula (21):
[0119] P a =b m ×P c #(twenty one)
[0120] Among them, P a Indicates the additional load loss power, b m Indicates the load loss coefficient, P c Indicates cutting power,
[0121] Cutting power P c It can be calculated from cutting-related process parameters and can be expressed by formula (22):
[0122]
[0123] Among them, P c Indicates cutting power, C Fc Indicates the influence coefficient of workpiece material and cutting conditions, a p Indicates the depth of cut, f indicates the feed rate, K Fc Indicates the correction factor, V c represents cutting speed, x Fc 、y Fc 、n Fc Indicates the cutting amount influence index.
[0124] Therefore, the energy consumption of the machine tool E can be calculated by formulas (18)-(22): d , and then the direct carbon emissions of the machine tool C can be calculated by formula (11) d .
[0125] In some embodiments, the calculation method further includes: providing a graphical user interface, displaying historical carbon emission data, real-time carbon emission data and predicted carbon emission data of each machine tool in the workshop on the graphical user interface. Figure 4 FIG. 4 is a schematic diagram of a graphical user interface 400 for showing carbon emissions of a workshop according to an embodiment of the present invention. Figure 4 As shown, area 401 shows the machine tools included in a workshop. Area 401 can also display the carbon emissions of each machine tool. Users can intuitively understand the carbon emissions of each machine tool by browsing, and thus make carbon reduction decisions. Area 402 shows the status of each machine tool, area 403 shows the energy consumption of different workshops, area 404 shows the carbon emissions of different machine tools at different times, and area 405 shows the alarm information of the machine tools.
[0126] Figure 3 This is a schematic diagram of the hierarchical structure of the carbon emissions of a workshop according to an embodiment of the present invention. It can be understood that this schematic diagram of the hierarchical structure does not limit the method for calculating the carbon emissions of a workshop, but is only used as an example of calculation. Figure 3 As shown, from the bottom up, the carbon emission C of the cutting fluid f , carbon emissions of lubricating oil C s , carbon emissions of cutting tools C t , carbon emissions from waste treatment C w The carbon emissions of workpiece i in process step j can be calculated By buffering carbon emissions Processing carbon emissions Carbon emissions from machine tool depreciation Transport carbon emissions The number of processes m, the number of workpieces n, the carbon emissions C of workpiece processing of the i-th workpiece can be calculated p , plus the carbon emissions from workpiece processing C p , carbon emissions from public infrastructure C pu , carbon emissions of working media C wm , personnel carbon emissions C pe and workpiece storage carbon emissions C st , the carbon emissions of the workshop can be obtained.
[0127] An embodiment of the present invention provides a method for calculating the carbon emissions of a workshop. By adding the carbon emissions of workpiece processing, the carbon emissions of public infrastructure, the carbon emissions of working media, the carbon emissions of personnel and the carbon emissions of workpiece storage, the carbon emissions of the workshop can be obtained. This method takes into account all aspects of the carbon emissions of the workshop, improves the accuracy of the calculation of the carbon emissions of the workshop, and is not limited to the type of machine tools, thereby increasing the scope of applicability of the carbon emissions of the workshop.
[0128] The present invention also proposes a device for calculating the carbon emissions of a workshop. Figure 5is a schematic diagram of a device 500 for calculating carbon emissions of a workshop according to an embodiment of the present invention. Figure 5 As shown, the computing device 500 includes:
[0129] Acquisition module 510, which acquires the energy consumption of public infrastructure, the flow rate and usage time of each working medium, the number of workers and the working hours of each worker, the number of stored workpieces and the processing time of each workpiece;
[0130] A first calculation module 520 calculates the carbon emissions of public infrastructure based on the energy consumption of the public infrastructure, calculates the carbon emissions of working media based on the flow rate and usage time of each working medium, calculates the carbon emissions of personnel based on the number of staff and the working hours of each staff member, and calculates the carbon emissions of workpiece storage based on the number of stored workpieces and the processing time of each workpiece;
[0131] The second calculation module 530 calculates the carbon emissions of each workpiece in each process step, and adds up the carbon emissions of all workpieces in all process steps to obtain the workpiece processing carbon emissions;
[0132] The third calculation module 540 adds the carbon emissions of workpiece processing, public infrastructure, working medium, personnel, and workpiece storage to obtain the carbon emissions of the workshop.
[0133] In some embodiments, the second calculation module 530 calculates the carbon emissions of each workpiece in each process step, adds up the carbon emissions of all workpieces in all process steps, and obtains the workpiece processing carbon emissions, including: calculating the buffer carbon emissions, processing carbon emissions, transportation carbon emissions and machine tool depreciation carbon emissions of each workpiece in each process step, and adding up the buffer carbon emissions, processing carbon emissions, transportation carbon emissions and machine tool depreciation carbon emissions of all workpieces in all process steps to obtain the workpiece processing carbon emissions.
[0134] In some embodiments, the second calculation module 530 calculates the processing carbon emissions of each workpiece in each process step, including: obtaining the energy consumption of the machine tool, calculating the direct carbon emissions of the machine tool based on the energy consumption of the machine tool, calculating the indirect carbon emissions including cutting fluid carbon emissions, lubricating oil carbon emissions, tool carbon emissions, and waste treatment carbon emissions, calculating the indirect carbon emissions of the machine tool based on the cutting fluid carbon emissions, lubricating oil carbon emissions, tool carbon emissions, and waste treatment carbon emissions, adding the direct carbon emissions of the machine tool and the indirect carbon emissions of the machine tool to obtain the processing carbon emissions of the workpiece in the process step.
[0135] In some embodiments, the second calculation module 530 calculates the direct carbon emissions of the machine tool based on the energy consumption of the machine tool, including: obtaining the minimum no-load power of the machine tool, the spindle speed of the machine tool, the back cutting depth, the feed rate and the cutting speed, calculating the no-load power of the machine tool based on the spindle speed of the machine tool, calculating the additional load power and cutting power of the machine tool based on the back cutting depth, the feed rate and the cutting speed, and calculating the direct carbon emissions of the machine tool based on the minimum no-load power of the machine tool, the no-load power of the machine tool, the additional load power of the machine tool and the cutting power.
[0136] In some embodiments, the computing device 500 further includes a display module: the display module provides a graphical user interface, which displays historical carbon emission data, real-time carbon emission data, and predicted carbon emission data of each machine tool in the workshop.
[0137] The present invention also provides an electronic device 600 . Figure 6 FIG. 6 is a schematic diagram of an electronic device 600 according to an embodiment of the present invention. Figure 6 As shown, the electronic device 600 includes a processor 610 and a memory 620 , wherein the memory 620 stores instructions, wherein when the instructions are executed by the processor 610 , the method 100 described above is implemented.
[0138] The present invention further provides a computer-readable storage medium having computer instructions stored thereon. When the computer instructions are executed, the method 100 described above is executed.
[0139] The present invention further provides a computer program product, comprising a computer program, which implements the method 100 described above when the computer program is executed by a processor.
[0140] Some aspects of the methods and apparatus of the present invention may be performed entirely by hardware, entirely by software (including firmware, resident software, microcode, etc.), or by a combination of hardware and software. The above hardware or software may be referred to as "data blocks," "modules," "engines," "units," "components," or "systems." The processor may be one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DAPDs), programmable logic devices (PLCs), field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, or combinations thereof. In addition, various aspects of the present invention may be embodied as computer products in one or more computer-readable media, the product including computer-readable program code. For example, computer-readable media may include, but are not limited to, magnetic storage devices (e.g., hard disks, floppy disks, tapes, etc.), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., cards, sticks, key drives, etc.).
[0141] Flowcharts are used herein to illustrate the operations performed by the methods according to the embodiments of the present application. It should be understood that the preceding operations are not necessarily performed in exact order. Instead, the various steps may be performed in reverse order or simultaneously. Furthermore, other operations may be added to these processes, or one or more operations may be removed from these processes.
[0142] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
[0143] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.
Claims
1. A method (100) for calculating carbon emissions of a workshop, characterized in that: The calculation method (100) includes: Obtaining the energy consumption of public infrastructure, the flow rate and usage time of each working medium, the number of workers and the working time of each worker, the number of stored workpieces and the processing time of each workpiece (110); Calculating the carbon emissions of public infrastructure based on the energy consumption of the public infrastructure, calculating the carbon emissions of working media based on the flow rate and usage time of each working medium, calculating the carbon emissions of personnel based on the number of staff and the working hours of each staff, and calculating the carbon emissions of workpiece storage based on the number of stored workpieces and the processing time of each workpiece (120); Calculate the carbon emissions of each workpiece in each process step, add up the carbon emissions of all workpieces in all process steps, and obtain the workpiece processing carbon emissions (130); The carbon emissions of the workshop are obtained by adding the carbon emissions of the workpiece processing, the carbon emissions of the public infrastructure, the carbon emissions of the working medium, the carbon emissions of the personnel and the carbon emissions of the workpiece storage (140).
2. The calculation method (100) according to claim 1, characterized in that Calculating the carbon emissions of each workpiece in each process step, adding up the carbon emissions of all workpieces in all process steps, and obtaining the workpiece processing carbon emissions include: calculating the buffer carbon emissions, processing carbon emissions, transportation carbon emissions and machine tool depreciation carbon emissions of each workpiece in each process step, and adding up the buffer carbon emissions, processing carbon emissions, transportation carbon emissions and machine tool depreciation carbon emissions of all workpieces in all process steps to obtain the workpiece processing carbon emissions.
3. The calculation method (100) according to claim 2, characterized in that Calculating the processing carbon emissions of each workpiece in each process step includes: obtaining the energy consumption of the machine tool, calculating the direct carbon emissions of the machine tool based on the energy consumption of the machine tool, calculating the carbon emissions of cutting fluid, carbon emissions of lubricating oil, carbon emissions of cutting tools, and carbon emissions of waste treatment, calculating the indirect carbon emissions of the machine tool based on the carbon emissions of cutting fluid, carbon emissions of lubricating oil, carbon emissions of cutting tools, and carbon emissions of waste treatment, adding the direct carbon emissions of the machine tool and the indirect carbon emissions of the machine tool to obtain the processing carbon emissions of the workpiece in the process step.
4. The calculation method (100) according to claim 3, characterized in that Calculating the direct carbon emissions of the machine tool based on the energy consumption of the machine tool includes: obtaining the minimum no-load power of the machine tool, the spindle speed of the machine tool, the depth of cut, the feed rate and the cutting speed; calculating the no-load power of the machine tool based on the spindle speed of the machine tool; calculating the additional load power and cutting power of the machine tool based on the depth of cut, the feed rate and the cutting speed; and calculating the direct carbon emissions of the machine tool based on the minimum no-load power of the machine tool, the no-load power of the machine tool, the additional load power and the cutting power of the machine tool.
5. The calculation method (100) according to any one of claims 1 to 4, characterized in that: The calculation method (100) further includes: providing a graphical user interface, on which the historical carbon emission data, real-time carbon emission data and predicted carbon emission data of each machine tool in the workshop are displayed.
6. A device (500) for calculating carbon emissions of a workshop, characterized in that: The computing device (500) comprises: An acquisition module (510) acquires the energy consumption of public infrastructure, the flow rate and usage time of each working medium, the number of staff and the working time of each staff, the number of stored workpieces and the processing time of each workpiece; A first calculation module (520) calculates the carbon emissions of the public infrastructure according to the energy consumption of the public infrastructure, calculates the carbon emissions of the working medium according to the flow rate and usage time of each working medium, calculates the carbon emissions of the personnel according to the number of the staff and the working hours of each staff, and calculates the carbon emissions of the workpiece storage according to the number of stored workpieces and the processing time of each workpiece; A second calculation module (530) calculates the carbon emissions of each workpiece in each process step, and adds up the carbon emissions of all workpieces in all process steps to obtain the carbon emissions of workpiece processing; The third calculation module (540) adds the carbon emissions of the workpiece processing, the carbon emissions of the public infrastructure, the carbon emissions of the working medium, the carbon emissions of the personnel and the carbon emissions of the workpiece storage to obtain the carbon emissions of the workshop.
7. The computing device (500) according to claim 6, characterized in that The second calculation module calculates the carbon emissions of each workpiece in each process step, adds up the carbon emissions of all workpieces in all process steps, and obtains the workpiece processing carbon emissions, including: calculating the buffer carbon emissions, processing carbon emissions, transportation carbon emissions and machine tool depreciation carbon emissions of each workpiece in each process step, and adding up the buffer carbon emissions, processing carbon emissions, transportation carbon emissions and machine tool depreciation carbon emissions of all workpieces in all process steps to obtain the workpiece processing carbon emissions.
8. The computing device (500) according to claim 7, characterized in that The second calculation module calculates the processing carbon emissions of each workpiece in each process step, including: obtaining the energy consumption of the machine tool, calculating the direct carbon emissions of the machine tool based on the energy consumption of the machine tool, calculating the carbon emissions of cutting fluid, carbon emissions of lubricating oil, carbon emissions of cutting tools, and carbon emissions of waste treatment, calculating the indirect carbon emissions of the machine tool based on the cutting fluid carbon emissions, carbon emissions of lubricating oil, carbon emissions of cutting tools, and carbon emissions of waste treatment, adding the direct carbon emissions of the machine tool and the indirect carbon emissions of the machine tool to obtain the processing carbon emissions of the workpiece in the process step.
9. The computing device (500) according to claim 8, characterized in that The second calculation module calculates the direct carbon emissions of the machine tool based on the energy consumption of the machine tool, including: obtaining the minimum no-load power of the machine tool, the spindle speed of the machine tool, the back cutting depth, the feed rate and the cutting speed, calculating the no-load power of the machine tool according to the spindle speed of the machine tool, calculating the additional load power and cutting power of the machine tool according to the back cutting depth, the feed rate and the cutting speed, and calculating the direct carbon emissions of the machine tool according to the minimum no-load power of the machine tool, the no-load power of the machine tool, the additional load power of the machine tool and the cutting power.
10. The computing device (500) according to any one of claims 6 to 9, characterized in that: The computing device further includes a display module: the display module provides a graphical user interface, on which the historical carbon emission data, real-time carbon emission data and predicted carbon emission data of each machine tool in the workshop are displayed.
11. An electronic device (600), comprising a processor (610), a memory (620), and instructions stored in the memory (620), wherein the instructions, when executed by the processor (610), implement the method (100) according to any one of claims 1 to 5.
12. A computer-readable storage medium having computer instructions stored thereon, wherein the computer instructions, when executed, perform the method (100) according to any one of claims 1 to 5.
13. A computer program product, characterized in that The invention comprises a computer program for implementing the method (100) according to any one of claims 1 to 5 when the computer program is executed by a processor.