Air filter type selection system and method based on carbon footprint management

Abstract

The invention provides an air filter type selection system and method based on carbon footprint management, and the air filter type selection system based on carbon footprint management comprises a product database module and a data simulation module. The data simulation module is connected with and calls the product database module; the invention discloses an air filter type selection method based on carbon footprint management. The method comprises the following steps: S1, establishing a product database; s2, inputting demand side information; s3, newly establishing a filter scheme; s4, selecting an energy-saving scheme; the method is suitable for a single-stage or multi-stage air filter scheme, the actual use condition of the air filter is simulated by inputting demand side information, calculation is carried out by adopting a step-by-step calculation principle, the use scheme is calculated step by step, it is ensured that final simulation data is calculated according to parameters of each stage of filter, and the calculation efficiency is improved. Total carbon footprint accounting is completed in the air filter type selection stage through data simulation, an energy-saving scheme can be derived, the application range is wide, and adaptability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of air filtration, and in particular to an air filter selection system and selection method based on carbon footprint management. Background Art

[0002] The construction industry is a key industry for carbon peak and carbon neutrality. Building energy consumption accounts for about 21%-24% of the total social energy consumption. HVAC equipment, as an important equipment widely used in public buildings, accounts for more than 50% of the total building energy consumption. Air filters are an important part of HVAC equipment, and their energy consumption accounts for about 30% of the total equipment energy consumption. Reducing the energy consumption and carbon emissions of air filters is an important way to respond to climate change and save energy and reduce emissions. At present, there is no unified carbon footprint accounting standard for air filters at home and abroad, and there is no selection system and selection method based on the carbon footprint management of air filters to output energy-saving and emission reduction solutions. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an air filter selection system and selection method based on carbon footprint management.

[0004] To achieve the above object, the present invention adopts the following technical solutions: An air filter selection method based on carbon footprint management and an air filter selection system based on carbon footprint management, comprising a product database module and a data simulation module; the data simulation module connects and calls the product database module; The following steps are involved: S1: Establish product database; Store air filter parameters of different specifications and models in the product database; S2: Input demand side information; S3: Create a new filter scheme; S31: Configure the filter solution according to the demand side’s requirements; S32: Calculate the resistance of the output filter solution; S33: Calculate and output the concentration of PM2.5 and PM10 after filtration; S34: Calculate the life cycle cost of the output filter solution; S35: Calculate the total carbon footprint of the output filter solution; S4: Select energy saving plan; S41: Data comparison, screening of filter solutions that meet the requirements; S42: The filter options are arranged according to the total carbon footprint and the final energy-saving option is selected.

[0005] Further, the air filter parameters in the product database include but are not limited to resistance, graded efficiency, dust holding capacity, product weight, product carbon footprint (from cradle to gate), product unit price, product operating air volume and resistance comparison data, PM2.5 efficiency and PM10 efficiency; The resistance includes initial resistance, average resistance and final resistance; the product carbon footprint is the carbon emissions from the acquisition of raw materials to the air filter products leaving the factory gate, which is obtained by internal calculations of the air filter manufacturer.

[0006] Furthermore, step S2 specifically includes: S21: Simulate the atmospheric environment on the demand side; Link to the official environmental monitoring website, respond to the operation to input the demander's region, retrieve the PM2.5 and PM10 data of the demander's region for the past year, calculate the annual average PM2.5 and PM10 concentrations, and determine it as the on-site dust concentration of the demander; S22: Simulate the operating parameters of the filter on the demand side; Custom input of the demander's on-site air conditioning box operating air volume, operating time, fan efficiency, number of installed filter sections, number of filters installed in each section, annual replacement frequency, hourly labor cost, replacement time for each filter, and average electricity price; S23: Setting the scheme threshold; According to the requirements of the demander, the parameter thresholds that the filter solutions must reach are set to screen out the filter solutions that meet the requirements; The scheme thresholds include filter scheme resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, and filter scheme life cycle cost.

[0007] Further, step S32 includes: S321: Calculate the operating air volume of the single-chip filter; Obtain the input air volume of the air conditioner and the number of filters installed in each section to calculate the air volume of the single filter in each section; S322: Obtaining the resistance of the corresponding operating air volume of the corresponding filter selected in the filter scheme; According to the filter scheme, the air filters of each filter section selected in the filter scheme are obtained, and the product operating air volume and resistance comparison data of the corresponding air filter in the product database are called to obtain the resistance under the corresponding operating air volume; according to the fact that the operating resistance of the single-piece filter of each section in the air-conditioning box is the same as the resistance of the filter section, the resistance of each section under the corresponding air volume of all filter schemes is obtained; S323: Obtain the resistance of the filter solution and output it; Add up the resistance of each section under the corresponding air volume in the filter scheme to obtain the resistance of the filter scheme, traverse all filter schemes, obtain the resistance of each filter scheme and output it.

[0008] Furthermore, S33 specifically includes: S331: Obtain PM2.5 efficiency and PM10 efficiency of each filter segment; According to the filter scheme, obtain the air filter of each filter section, and call the PM2.5 efficiency and PM10 efficiency of the corresponding air filter in the product database; S332: calling the dust concentration on the demand side obtained in S21; S333: Calculate the concentration of PM2.5 and PM10 after filtration according to the step-by-step calculation principle; S334: Traverse all filter schemes, obtain the PM2.5 concentration and PM10 concentration after filtering of all filter schemes, and output them.

[0009] Further, step S34 includes: S341: Obtain the input annual replacement frequency, hourly labor cost, replacement time per filter, and average electricity price; S342: According to the filter solution, the product unit price, average resistance and filter weight of the single-piece air filter corresponding to each filter segment in the product database are retrieved; S343: Calculate the life cycle cost of the filter solution; 1) Obtain the cost of purchasing filters; The purchase cost of each filter segment is calculated based on the number of air filters in each filter segment in the filter solution, the unit price of the air filter, and the input annual replacement frequency. The purchase cost of each filter segment is added up to obtain the purchase cost of the filter for the filter solution. 2) Obtain filter replacement fees; Calculate the filter replacement cost of each filter segment according to the replacement time of each filter in the filtration scheme, the hourly labor cost and the annual replacement frequency, and then add up the filter replacement costs of each filter segment to obtain the filter replacement cost of the filtration scheme; 3) Obtain energy consumption costs; First, the average resistance of each filter section air filter in the filter solution is obtained according to the average resistance in the product database, and then the average resistance of each filter section air filter is added to obtain the total resistance of the filter solution; finally, the energy consumption cost of the filter solution is calculated according to the input air volume of the air conditioner, the fan efficiency during the operation time and the average electricity price; 4) Obtaining waste disposal fees; First, the filter weight of each filter section air filter in the product database is obtained according to the filter scheme. The weight of each filter section air filter is calculated according to the filter weight, the number of filters installed in each section, and the annual replacement frequency. The weight of each filter section air filter is added together to obtain the total weight of the filters used in the filter scheme. The waste disposal fee is calculated at 300 yuan per ton. 5) Obtain the life cycle cost of the filter; The filter purchase cost, filter replacement cost, energy consumption cost and waste disposal cost are added together to obtain the filter life cycle cost; S344: Traverse all filter solutions, obtain the life cycle cost of the filter corresponding to the filter solution, and output it.

[0010] Further, step S35 includes: S351: Obtain product carbon footprint of filter solution; According to the filter scheme, the product carbon footprint of the monolithic air filter corresponding to the filter scheme in the product database is called; S352: Obtaining a total carbon footprint of a single filter; First, a carbon emission calculation database is established, which includes transportation methods, fuel efficiency of transportation tools, transportation fuel emission factors, waste treatment methods and their corresponding emission factors, global warming potential, and electricity greenhouse gas emission factors; Next, the carbon emissions in the distribution and storage stages are obtained; based on the input product transportation mode, the carbon emissions calculation database is called to obtain the fuel efficiency of the transportation tool corresponding to the product transportation mode and select the transportation fuel emission factor; the carbon emissions are calculated based on the product of the transportation tool's fuel efficiency, transportation distance, transportation fuel emission factor and global warming potential; Then, the carbon emissions in the use phase are obtained; the energy consumption of the air filter over its entire life cycle is calculated using the Eurovent 4 / 21-2018 standard, the carbon emissions calculation database is called, and the carbon emissions are calculated using the product of the energy consumption of the air filter over its entire life cycle, the greenhouse gas emission factor of electricity, and the global warming potential; After that, the carbon emissions at the end-of-life stage are obtained; according to the input demand-side waste treatment method, the corresponding emission factor is searched in the carbon emission calculation database, and the carbon emissions are calculated based on the product of the activity level data related to waste treatment, the corresponding greenhouse gas emission factor and the global warming potential; the activity level data related to waste treatment is the weight of the waste; Finally, the total carbon footprint of the monolithic filter is obtained according to the total carbon footprint of the monolithic filter = product carbon footprint + carbon emissions in the distribution and storage stages + carbon emissions in the use stage + carbon emissions in the end-of-life stage; S353: Obtaining the carbon footprint of the air filter of each filter segment; The carbon footprint of the air filter of each filter segment is obtained according to the total carbon footprint of the single filter*the number of filters installed in each segment; S354: Obtain the total carbon footprint of the filter solution; The total carbon footprint of the filter solution is obtained by summing the carbon footprint of the air filter of each filter segment and the annual replacement frequency of each segment; S355: Traverse all filter schemes, obtain the total carbon footprint of all filter schemes and output it.

[0011] Furthermore, the filter scheme resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, and filter scheme life cycle cost are compared with the set scheme thresholds to screen out the filter schemes that meet the judgment criteria; The judgment criteria are: filter solution resistance ≤ filter solution resistance threshold; PM2.5 concentration after filtration ≤ PM2.5 concentration threshold after filtration; PM10 concentration after filtration ≤ PM10 concentration threshold after filtration; filter solution life cycle cost ≤ filter solution life cycle cost threshold.

[0012] An air filter selection system based on carbon footprint management,Product database module: used to store product parameters of different specifications; The data simulation module is used to simulate the actual usage parameters of the air filter solution at the demand side. It inputs the demand side information, selects the air filter composition solution of corresponding specifications, calls the filter parameters stored in the product database module, and automatically simulates the filter solution's resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, filter solution life cycle cost, and total carbon footprint, and outputs the final energy-saving solution.

[0013] Further, the data simulation module includes an input module, a filter scheme creation module, a simulation calculation module, a data comparison module, a screening module, a sorting module and a scheme output module; The input module is used to input demand side information and set thresholds; the input module includes an association module, a demand side parameter input module and a threshold input setting module; The association module is used to retrieve the actual PM2.5 concentration and PM10 concentration of the demand side from the official environmental monitoring website; The demand side parameter input module is used to input the demand side on-site filter operation parameters; The threshold input setting module is used to set the scheme threshold; The filter scheme creation module is used by engineers to manually create and configure filter schemes based on experience. The number of filter schemes is 1 to 5. The simulation calculation module includes a calculation module, a carbon emission calculation database module and an output module; the calculation module is used to calculate the resistance of the filter solution, the PM2.5 concentration after filtration, the PM10 concentration after filtration, the life cycle cost of the filter solution, and the total carbon footprint of the filter solution; the carbon emission calculation database module is used to store the data of the carbon emission calculation; The output module is used to output the calculated resistance of the filter solution, the PM2.5 concentration after filtration, the PM10 concentration after filtration, the life cycle cost of the filter solution, and the total carbon footprint of the filter solution; The data comparison module includes a receiving module and a comparison module, wherein the receiving module is used to receive the data output by the output module; the comparison module is used to compare the filter scheme resistance, the PM2.5 concentration after filtration, the PM10 concentration after filtration, and the filter scheme life cycle cost with the scheme threshold respectively; The screening module is used to screen filter solutions whose filter solution resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, and filter solution life cycle cost are all less than the solution threshold; The sorting module is used to sort the selected filter solutions in ascending order according to the total carbon footprint; The solution output module is used to output the final energy-saving solution.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention proposes an air filter selection method based on carbon footprint management, which is applicable to single-stage or multi-stage air filter solutions. The actual use conditions of the air filter are simulated by inputting the information of the demander, and the calculation is performed on the principle of step-by-step calculation. The scheme to be used is calculated step by step to ensure that the final simulation data is calculated based on the parameters of each filter stage. This avoids the erroneous algorithm in the prior art that the filtering environment of each filter section is different, but the existing manufacturers still use the same environment to calculate the filter for each filtering section. The performance parameter threshold of the air filter solution is set according to the demander's needs, and the filter solution that meets the demander's requirements is screened out, and then the final filter energy-saving solution is determined by arranging them according to the carbon footprint value.

[0015] 2. The present invention proposes an air filter selection method based on carbon footprint management, which divides the system boundary of carbon footprint accounting into cradle-to-gate and cradle-to-grave. The carbon footprint (cradle-to-gate) can be calculated internally by air filter manufacturers, and the distribution and storage stage, use stage and end-of-life stage of air filters after leaving the factory are usually calculated by the demand side. The present invention completes the total carbon footprint (cradle-to-grave) calculation in the air filter selection stage through data simulation, which is conducive to the introduction of energy-saving solutions.

[0016] 3. The present invention proposes an air filter selection system based on carbon footprint management, including a product database module and a data simulation module, which are configured based on the selection method provided by the present invention. The product database module is used to store product data of air filter manufacturers, and the data simulation module is used to simulate the use conditions of the air filters of the demand side, and calculate the total carbon footprint, life cycle cost and other parameters of the air filter from leaving the factory to being scrapped. A set of systems can be used to simulate the selection of different working conditions, and the system has a wide range of applications and strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a flowchart of the steps of Embodiment 1 of the present invention; Figure 2 This is a data comparison rule diagram of step S4 of embodiment 1 of the present invention. DETAILED DESCRIPTION

[0018] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments. Example 1

[0019] A method for selecting an air filter based on carbon footprint management comprises the following steps: S1: Establish product database; The parameters of air filters of different specifications and models are stored in the product database, including but not limited to resistance, graded efficiency, dust holding capacity, product weight, product carbon footprint (from cradle to gate), product unit price, product operating air volume and resistance comparison data, PM2.5 efficiency and PM10 efficiency, etc.

[0020] The resistance includes initial resistance, average resistance and final resistance; The product operating air volume and resistance comparison data is a resistance curve chart corresponding to filters of different specifications and models at different operating air volumes, which is used to find the resistance corresponding to the operating air volume.

[0021] The product carbon footprint (from cradle to gate) only includes part of the life cycle process, from the acquisition of raw materials to the carbon emissions of the air filter product leaving the factory gate. The product carbon footprint (from cradle to gate) can be calculated internally by the air filter manufacturer and the results are stored in the product database.

[0022] S2: Input demand side information; The demand side information specifically includes: the air volume of the air-conditioning box, the operating time, the number of installed filters, the fan efficiency, the PM2.5 concentration and PM10 concentration in the intake air, the distance from the demand side and the transportation method, the waste disposal method, the annual replacement frequency, the hourly labor cost, the replacement time for each filter, the average electricity price, etc.

[0023] Specifically include: S21: Simulate the atmospheric environment on the demand side; Link to the official environmental monitoring website, respond to the operation input of the demander's region, retrieve the PM2.5 and PM10 data of the demander's region in the past year, calculate the annual average PM2.5 and PM10 concentrations, determine the demander's on-site dust concentration, and use it as the input of the PM2.5 concentration and PM10 concentration in the intake air; S22: Simulate the operating parameters of the filter on the demand side; Customize the input of the demander's on-site air conditioning box operating air volume, operating time, fan efficiency, number of installed filter sections, number of filters installed in each section, annual replacement frequency, hourly labor cost, replacement time for each filter, average electricity price, etc.

[0024] S23: Setting the scheme threshold; According to the requirements of the demander, the parameter thresholds that the filter solutions must reach are set to screen out the filter solutions that meet the requirements; The performance parameter threshold set according to the demand side's needs is set as the solution threshold; the performance parameter threshold set by the demand side includes: filter solution resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, filter solution life cycle cost, etc.

[0025] S3: Create a new filter scheme; Configure the air filters for each filtration segment according to the number of air conditioning box segments and grade requirements of the demand side, call the parameters of each selected air filter segment from the product database, and use the step-by-step calculation principle to calculate the filter solution's resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, total carbon footprint (from cradle to grave), and life cycle cost based on the demand side's information.

[0026] S31: Configure the filter solution according to the demand side’s requirements; Configure air filters for each filter section according to the number of air conditioning box sections and grade requirements required by the demander, and configure multiple filter solutions that meet the demander's needs based on experience; S32: Calculate the resistance of the output filter solution; S321: Calculate the operating air volume of the single-chip filter; Get the input air volume of the air conditioner and the number of filters installed in each section, and calculate the air volume of the single filter in each section according to the formula: single filter air volume = air conditioner air volume / number of filters installed in each section. S322: Obtaining the resistance of the corresponding operating air volume of the corresponding filter selected in the filter scheme; According to the filter scheme, the air filter of each filter segment selected in the filter scheme is obtained, and the product operating air volume and resistance comparison data of the corresponding air filter in the product database are called to obtain the resistance under the corresponding operating air volume; all filter schemes are traversed to obtain the resistance of each segment under the corresponding air volume of all filter schemes; Since the operating resistance of each section of the monolithic filter in the air-conditioning box is the same as the resistance of the filter section, the resistance of the first section filter is equal to the resistance of the first section monolithic filter corresponding to the operating air volume, the resistance of the second section filter is equal to the resistance of the second section monolithic filter corresponding to the operating air volume; the resistance of the third section filter is equal to the resistance of the third section monolithic filter corresponding to the operating air volume...

[0027] S323: Obtain the resistance of the filter solution and output it; Add up the resistance of each section under the corresponding air volume in the filter scheme to obtain the resistance of the filter scheme, traverse all filter schemes, obtain the resistance of each filter scheme and output it.

[0028] The resistance of the filter solution = the resistance of the first filter section + the resistance of the second filter section + the resistance of the third filter section…

[0029] S33: Calculate and output the concentration of PM2.5 and PM10 after filtration; S331: Obtain PM2.5 efficiency and PM10 efficiency of each filter segment; According to the filter scheme, obtain the air filter of each filter section, and call the PM2.5 efficiency and PM10 efficiency of the corresponding air filter in the product database; S332: calling the dust concentration on the demand side obtained in S21; S333: Calculate the concentration of PM2.5 and PM10 after filtration according to the step-by-step calculation principle; According to the formula, PM2.5 concentration after filtration = PM2.5 concentration on the demand side * (1-PM2.5 efficiency of the first filter) * (1-PM2.5 efficiency of the second filter) * (1-PM2.5 efficiency of the third filter)... Calculate the PM2.5 concentration after filtration; According to the formula, PM10 concentration after filtration = PM10 concentration on the demand side * (1-PM10 efficiency of the first filter) * (1-PM10 efficiency of the second filter) * (1-PM10 efficiency of the third filter)... calculate PM2.5 concentration after filtration; S334: Traverse all filter solutions, obtain the PM2.5 concentration and PM10 concentration after filtering of all filter solutions, and output them; Traverse all filter schemes, and use the same method to calculate the PM2.5 concentration and PM10 concentration after filtration of all filter schemes and output them.

[0030] S34: Calculate the life cycle cost of the output filter solution; S341: Obtain the input annual replacement frequency, hourly labor cost, replacement time per filter, and average electricity price; S342: According to the filter solution, the product unit price, average resistance and filter weight of the single-piece air filter corresponding to each filter segment in the product database are retrieved; S343: Calculate the life cycle cost of the filter solution; Obtain the cost of purchasing filters; The purchase cost of each filter segment is calculated based on the number of air filters in each filter segment in the filter solution, the unit price of the air filter, and the input annual replacement frequency. The purchase cost of each filter segment is added up to obtain the purchase cost of the filter for the filter solution.

[0031] The calculation formula is: Filter purchase cost = first-stage filter unit price * first-stage filter quantity * annual replacement frequency + second-stage filter unit price * second-stage filter quantity * annual replacement frequency +...

[0032] 2) Obtain filter replacement fees; Calculate the filter replacement cost of each filter segment according to the replacement time of each filter in the filtration scheme, the hourly labor cost and the annual replacement frequency, and then add up the filter replacement costs of each filter segment to obtain the filter replacement cost of the filtration scheme; The calculation formula is: Filter replacement cost = replacement time of each filter in the first section * labor cost per hour * number of filters installed in the first section * annual replacement frequency + replacement time of each filter in the second section * labor cost per hour * number of filters installed in the second section * annual replacement frequency + ….

[0033] 3) Obtain energy consumption costs; First, the average resistance of each filter section air filter in the filter solution is obtained according to the average resistance in the product database, and then the average resistance of each filter section air filter is added to obtain the total resistance of the filter solution; finally, the energy consumption cost of the filter solution is calculated according to the input air volume of the air conditioner, the fan efficiency during the operation time and the average electricity price; The calculation formula is: Energy consumption cost = air volume of air conditioner * operating time * (average resistance of the first filter stage + average resistance of the second filter stage + ...) / (fan efficiency * 1000) * average electricity price.

[0034] 4) Obtaining waste disposal fees; First, the filter weight of each filter section air filter in the product database is obtained according to the filter scheme. The weight of each filter section air filter is calculated according to the filter weight, the number of filters installed in each section, and the annual replacement frequency. The weight of each filter section air filter is added together to obtain the total weight of the filters used in the filter scheme. The waste disposal fee is calculated at 300 yuan per ton. The calculation formula is: Waste disposal cost = (weight of the first-stage filter * annual replacement frequency * number of first-stage filters + weight of the second-stage filter * annual replacement frequency * number of second-stage filters + ...) / 1000 * 300.

[0035] 5) Obtain the life cycle cost of the filter; The filter purchase cost, filter replacement cost, energy consumption cost and waste disposal cost are added together to obtain the filter life cycle cost; The life cycle cost of a filter = filter purchase cost + filter replacement cost + energy consumption cost + waste disposal cost.

[0036] S344: Traverse all filter solutions, obtain the life cycle cost of the filter corresponding to the filter solution, and output it.

[0037] S35: Calculate the total carbon footprint (cradle to grave) of the output filter scheme; The total carbon footprint (cradle to grave) covers the carbon emissions of air filters throughout the entire life cycle, including raw material acquisition, air filter production, distribution and storage, use and end of life.

[0038] S351: Obtain product carbon footprint of filter solution; According to the filter scheme, the product carbon footprint of the monolithic air filter corresponding to the filter scheme in the product database is called; S352: Obtain the total carbon footprint (cradle to grave) of a monolithic filter; First, establish a carbon emissions calculation database, which includes transportation methods, fuel efficiency of transportation tools, transportation fuel emission factors, waste treatment methods and their corresponding emission factors, global warming potential, electricity greenhouse gas emission factors, etc. The emission factor corresponding to a waste treatment method is the amount of greenhouse gases emitted per unit of waste treatment process. Different waste treatment methods correspond to different emission factors.

[0039] Global warming potential (GWP) is a measure of the contribution of different greenhouse gases to climate change, relative to carbon dioxide (CO2).

[0040] The fuel efficiency of a vehicle is related to the mode of transportation. For example, a small car is usually 5-10L / 100km; a light truck: 10-15 L / 100km, a heavy truck: 30-50 L / 100km, etc.

[0041] The transport fuel emission factor refers to the amount of greenhouse gases emitted per unit of fuel consumed. For different types of fuel (such as gasoline, diesel, natural gas, etc.), the emission factor is different. Common emission factors are: gasoline: 2.31 kg CO2 / L, diesel: 2.68 kg CO2 / L, natural gas: 1.92 kg CO2 / kg.

[0042] The greenhouse gas emission factor of electricity is determined by different power generation methods. Coal power generation: the emission factor is 0.9 kgCO2 / kWh, natural gas power generation: the emission factor of natural gas is 0.4 kg CO2 / kWh; the emission factor of hydropower is almost 0.

[0043] Next, the carbon emissions in the distribution and storage stages are obtained; based on the input product transportation method, the carbon emissions calculation database is called to obtain the fuel efficiency of the transportation tool corresponding to the product transportation method and select the transportation fuel emission factor; the carbon emissions are calculated based on the product of the transportation tool's fuel efficiency, transportation distance, transportation fuel emission factor and global warming potential.

[0044] Then, the carbon emissions during the use phase are obtained; the energy consumption of the air filter over its entire life cycle is calculated using the formula specified in the Eurovent 4 / 21-2018 standard, the carbon emissions calculation database is called, and the carbon emissions are calculated using the product of the energy consumption of the air filter over its entire life cycle, the electricity greenhouse gas emission factor, and the global warming potential.

[0045] After that, the carbon emissions at the end-of-life stage are obtained; according to the input demand-side waste treatment method (such as landfill, incineration, recycling, composting, etc.), the corresponding emission factor is searched in the carbon emission calculation database, and the carbon emissions are calculated based on the product of the activity level data related to waste treatment, the corresponding greenhouse gas emission factor and the global warming potential; the activity level data related to waste treatment is the weight of the waste, which can be calculated by the total weight of the filter calculated above, in tons; Finally, the total carbon footprint (from cradle to grave) of the monolithic filter is obtained according to the total carbon footprint (from cradle to grave) of the monolithic filter = product carbon footprint (from cradle to gate) + carbon emissions in the distribution and storage stages + carbon emissions in the use stage + carbon emissions in the end-of-life stage.

[0046] S353: Obtaining the carbon footprint of the air filter of each filter segment; The carbon footprint of the air filter for each filter segment was obtained based on the total carbon footprint of a single filter (from cradle to grave) * the number of filters installed in each segment; S354: Obtain the total carbon footprint of the filter solution; The total carbon footprint of the filter solution is obtained by summing the carbon footprint of the air filter of each filter segment and the annual replacement frequency of each segment; The formula is: Total carbon footprint of the filter solution = carbon footprint of the first filter * annual replacement frequency + carbon footprint of the second filter * annual replacement frequency + carbon footprint of the third filter * annual replacement frequency + ...

[0047] The annual replacement frequency includes the replacement frequency of each filter segment, and the replacement frequency of each filter segment can be different.

[0048] S355: Traverse all filter schemes, obtain the total carbon footprint of all filter schemes and output it.

[0049] S4: Select energy saving plan; S41: Data comparison, screening of filter solutions that meet the requirements; The filter scheme resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, and filter scheme life cycle cost are compared with the scheme threshold set in step S23 respectively, and the judgment criteria are: filter scheme resistance ≤ filter scheme resistance threshold; PM2.5 concentration after filtration ≤ PM2.5 concentration threshold after filtration; PM10 concentration after filtration ≤ PM10 concentration threshold after filtration; filter scheme life cycle cost ≤ filter scheme life cycle cost threshold; the filter scheme whose data meets the judgment criteria is screened out as the filter scheme that meets the requirements.

[0050] S42: Filter options are ranked according to their total carbon footprint (from cradle to grave) and the ultimate energy-saving option is selected.

[0051] The filter solutions that meet the requirements are arranged in ascending order according to their total carbon footprint (from cradle to grave), and the filter solution ranked first is selected as the final energy-saving solution. Example 2

[0052] An air filter selection system based on carbon footprint management includes a product database module and a data simulation module; the data simulation module is connected to and calls the product database module.

[0053] The product database module is used to store product parameters of different specifications, including but not limited to resistance, classification efficiency, dust holding capacity, product weight, product carbon footprint (from cradle to gate), product unit price, product operating air volume and resistance comparison data, PM2.5 efficiency and PM10 efficiency, etc.

[0054] The data simulation module is used to simulate the actual usage parameters of the air filter solution at the demand side. It inputs the demand side information, selects the air filter composition solution of corresponding specifications, calls the filter parameters stored in the product database module, and automatically simulates the filter solution resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, filter solution life cycle cost, total carbon footprint (from cradle to grave) and other data, and outputs the final energy-saving solution.

[0055] The data simulation module includes an input module, a filter scheme creation module, a simulation calculation module, a data comparison module, a screening module, a sorting module and a scheme output module; The input module is used to input demand side information and set thresholds; the input module includes an association module, a demand side parameter input module and a threshold input setting module; The association module is used to retrieve the actual PM2.5 concentration and PM10 concentration of the demand side from the official environmental monitoring website; The demand side parameter input module is used to input the demand side on-site filter operation parameters; The threshold input setting module is used to set the scheme threshold; The filter scheme creation module is used by engineers to manually create and configure filter schemes based on experience. 1-5 filter schemes can be configured; The simulation calculation module includes a calculation module, a carbon emission calculation database module and an output module; the calculation module is used to calculate the resistance of the filter solution, the PM2.5 concentration after filtration, the PM10 concentration after filtration, the life cycle cost of the filter solution, and the total carbon footprint of the filter solution (from cradle to grave); the output module is used to output the calculated resistance of the filter solution, the PM2.5 concentration after filtration, the PM10 concentration after filtration, the life cycle cost of the filter solution, and the total carbon footprint of the filter solution (from cradle to grave); the carbon emission calculation database module is used to store the data of carbon emission calculation; The data comparison module includes a receiving module and a comparison module, wherein the receiving module is used to receive the data output by the output module; the comparison module is used to compare the filter scheme resistance, the PM2.5 concentration after filtration, the PM10 concentration after filtration, and the filter scheme life cycle cost with the scheme threshold respectively; The screening module is used to screen filter solutions whose filter solution resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, and filter solution life cycle cost are all less than the solution threshold; The sorting module is used to sort the selected filter solutions in ascending order according to the total carbon footprint (from cradle to grave); The solution output module is used to output the final energy-saving solution.

[0056] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention are all within the scope of patent protection of the present invention.

Claims

1. A method for selecting an air filter based on carbon footprint management, characterized in that: The air filter selection system based on carbon footprint management includes a product database module and a data simulation module; the data simulation module connects and calls the product database module; The following steps are involved: S1: Establish product database; Store air filter parameters of different specifications and models in the product database; S2: Input demand side information; S3: Create a new filter scheme; S31: configure the filter scheme according to the demand side information; S32: Calculate the resistance of the output filter solution; S33: Calculate and output the concentration of PM2.5 and PM10 after filtration; S34: Calculate the life cycle cost of the output filter solution; S35: Calculate the total carbon footprint of the output filter solution; S4: Select energy saving plan; S41: Data comparison, screening of filter solutions that meet the requirements; S42: The filter options are arranged according to the total carbon footprint and the final energy-saving option is selected.

2. The air filter selection method based on carbon footprint management according to claim 1, characterized in that: The air filter parameters in the product database include, but are not limited to, resistance, graded efficiency, dust holding capacity, product weight, product carbon footprint (from cradle to gate), product unit price, product operating air volume and resistance comparison data, PM2.5 efficiency and PM10 efficiency; The resistance includes initial resistance, average resistance and final resistance; the product carbon footprint is obtained by internal calculations by the air filter manufacturer.

3. The air filter selection method based on carbon footprint management according to claim 2, characterized in that: Step S2 specifically includes: S21: Simulate the atmospheric environment on the demand side; Link to the official environmental monitoring website, respond to the operation to input the area where the demander is located, retrieve the PM2.5 and PM10 data of the demander's area in the past year, calculate the annual average PM2.5 and PM10 concentrations, and determine it as the on-site dust concentration; S22: Simulate the operating parameters of the filter on the demand side; Custom input of the demander's on-site air conditioning box operating air volume, operating time, fan efficiency, number of installed filter sections, number of filters installed in each section, annual replacement frequency, hourly labor cost, replacement time for each filter, and average electricity price; S23: Setting the scheme threshold; According to the requirements of the demander, the parameter thresholds that the filter solutions must reach are set to screen out the filter solutions that meet the requirements; The scheme thresholds include filter scheme resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, and filter scheme life cycle cost.

4. The air filter selection method based on carbon footprint management according to claim 3, characterized in that: Step S32 includes: S321: Calculate the operating air volume of the single-chip filter; Obtain the input air volume of the air conditioner and the number of filters installed in each section to calculate the air volume of the single filter in each section; S322: Obtaining the resistance of the corresponding operating air volume of the corresponding filter selected in the filter scheme; According to the filter scheme, the air filters of each filter section selected in the filter scheme are obtained, and the product operating air volume and resistance comparison data of the corresponding air filter in the product database are called to obtain the resistance under the corresponding operating air volume; according to the fact that the operating resistance of the single-piece filter of each section in the air-conditioning box is the same as the resistance of the filter section, the resistance of each section under the corresponding air volume of all filter schemes is obtained; S323: Obtain the resistance of the filter solution and output it; Add up the resistance of each section under the corresponding air volume in the filter scheme to obtain the resistance of the filter scheme, traverse all filter schemes, obtain the resistance of each filter scheme and output it.

5. The air filter selection method based on carbon footprint management according to claim 3, characterized in that: S33 specifically includes: S331: Obtain PM2.5 efficiency and PM10 efficiency of each filter segment; According to the filter scheme, obtain the air filter of each filter section, and call the PM2.5 efficiency and PM10 efficiency of the corresponding air filter in the product database; S332: calling the dust concentration on the demand side obtained in S21; S333: Calculate the concentration of PM2.5 and PM10 after filtration according to the step-by-step calculation principle; S334: Traverse all filter schemes, obtain the PM2.5 concentration and PM10 concentration after filtration of all filter schemes, and output them.

6. The air filter selection method based on carbon footprint management according to claim 3, characterized in that: Step S34 includes: S341: Obtain the input annual replacement frequency, hourly labor cost, replacement time per filter, and average electricity price; S342: According to the filter solution, the product unit price, average resistance and filter weight of the single-piece air filter corresponding to each filter segment in the product database are retrieved; S343: Calculate the life cycle cost of the filter solution; 1) Obtain the cost of purchasing filters; The purchase cost of each filter segment is calculated based on the number of air filters in each filter segment in the filter solution, the unit price of the air filter, and the input annual replacement frequency. The purchase cost of each filter segment is added up to obtain the purchase cost of the filter for the filter solution. 2) Obtain filter replacement fees; Calculate the filter replacement cost of each filter segment according to the replacement time of each filter in the filtration scheme, the hourly labor cost and the annual replacement frequency, and then add up the filter replacement costs of each filter segment to obtain the filter replacement cost of the filtration scheme; 3) Obtain energy consumption costs; First, the average resistance of each filter section air filter in the filter solution is obtained according to the average resistance in the product database, and then the average resistance of each filter section air filter is added to obtain the total resistance of the filter solution; finally, the energy consumption cost of the filter solution is calculated according to the input air volume of the air conditioner, the fan efficiency during the operation time and the average electricity price; 4) Obtaining waste disposal fees; First, the filter weight of each filter section air filter in the product database is obtained according to the filter scheme. The weight of each filter section air filter is calculated according to the filter weight, the number of filters installed in each section, and the annual replacement frequency. The weight of each filter section air filter is added together to obtain the total weight of the filters used in the filter scheme. The waste disposal fee is calculated at 300 yuan per ton. 5) Obtain the life cycle cost of the filter; The filter purchase cost, filter replacement cost, energy consumption cost and waste disposal cost are added together to obtain the filter life cycle cost; S344: Traverse all filter solutions, obtain the life cycle cost of the filter corresponding to the filter solution, and output it.

7. The air filter selection method based on carbon footprint management according to claim 3, characterized in that: Step S35 includes: S351: Obtain product carbon footprint of filter solution; According to the filter scheme, the product carbon footprint of the monolithic air filter corresponding to the filter scheme in the product database is called; S352: Obtaining a total carbon footprint of a single filter; First, a carbon emission calculation database is established, which includes transportation methods, fuel efficiency of transportation tools, transportation fuel emission factors, waste treatment methods and their corresponding emission factors, global warming potential, and electricity greenhouse gas emission factors; Next, the carbon emissions in the distribution and storage stages are obtained; based on the input product transportation mode, the carbon emissions calculation database is called to obtain the fuel efficiency of the transportation tool corresponding to the product transportation mode and select the transportation fuel emission factor; the carbon emissions are calculated based on the product of the transportation tool's fuel efficiency, transportation distance, transportation fuel emission factor and global warming potential; Then, the carbon emissions in the use phase are obtained; the energy consumption of the air filter over its entire life cycle is calculated using the Eurovent 4 / 21-2018 standard, the carbon emissions calculation database is called, and the carbon emissions are calculated using the product of the energy consumption of the air filter over its entire life cycle, the greenhouse gas emission factor of electricity, and the global warming potential; After that, the carbon emissions at the end-of-life stage are obtained; according to the input demand-side waste treatment method, the corresponding emission factor is searched in the carbon emission calculation database, and the carbon emissions are calculated based on the product of the activity level data related to waste treatment, the corresponding greenhouse gas emission factor and the global warming potential; the activity level data related to waste treatment is the weight of the waste; Finally, the total carbon footprint of the monolithic filter is obtained according to the total carbon footprint of the monolithic filter = product carbon footprint + carbon emissions in the distribution and storage stages + carbon emissions in the use stage + carbon emissions in the end-of-life stage; S353: Obtaining the carbon footprint of the air filter of each filter segment; The carbon footprint of the air filter of each filter segment is obtained according to the total carbon footprint of the single filter*the number of filters installed in each segment; S354: Obtain the total carbon footprint of the filter solution; The total carbon footprint of the filter solution is obtained by summing the carbon footprint of the air filter of each filter segment and the annual replacement frequency of each segment; S355: Traverse all filter schemes, obtain the total carbon footprint of all filter schemes and output it.

8. The air filter selection method based on carbon footprint management according to claim 1, characterized in that: Compare the filter scheme resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, and filter scheme life cycle cost with the set scheme thresholds to select the filter scheme that meets the judgment criteria; The judgment criteria are: filter solution resistance ≤ filter solution resistance threshold; PM2.5 concentration after filtration ≤ PM2.5 concentration threshold after filtration; PM10 concentration after filtration ≤ PM10 concentration threshold after filtration; filter solution life cycle cost ≤ filter solution life cycle cost threshold.

9. An air filter selection system according to the air filter selection method based on carbon footprint management as claimed in claim 1, characterized in that: The product database module is used to store product parameters of different specifications; The data simulation module is used to simulate the actual usage parameters of the air filter solution at the demand side. It inputs the demand side information, selects the air filter composition solution of corresponding specifications, calls the filter parameters stored in the product database module, and automatically simulates the filter solution's resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, filter solution life cycle cost, and total carbon footprint, and outputs the final energy-saving solution.

10. The air filter selection system based on carbon footprint management according to claim 9, characterized in that: The data simulation module includes an input module, a filter scheme creation module, a simulation calculation module, a data comparison module, a screening module, a sorting module and a scheme output module; The input module is used to input demand side information and set thresholds; the input module includes an association module, a demand side parameter input module and a threshold input setting module; The association module is used to retrieve the actual PM2.5 concentration and PM10 concentration of the demand side from the official environmental monitoring website; The demand side parameter input module is used to input the demand side on-site filter operation parameters; The threshold input setting module is used to set the scheme threshold; The filter scheme creation module is used by engineers to manually create and configure filter schemes based on experience. The number of filter schemes is 1 to 5. The simulation calculation module includes a calculation module, a carbon emission calculation database module and an output module; the calculation module is used to calculate the resistance of the filter solution, the PM2.5 concentration after filtration, the PM10 concentration after filtration, the life cycle cost of the filter solution, and the total carbon footprint of the filter solution; the carbon emission calculation database module is used to store the data of the carbon emission calculation; The output module is used to output the calculated resistance of the filter solution, the PM2.5 concentration after filtration, the PM10 concentration after filtration, the life cycle cost of the filter solution, and the total carbon footprint of the filter solution; The data comparison module includes a receiving module and a comparison module, wherein the receiving module is used to receive the data output by the output module; the comparison module is used to compare the filter scheme resistance, the PM2.5 concentration after filtration, the PM10 concentration after filtration, and the filter scheme life cycle cost with the scheme threshold respectively; The screening module is used to screen filter solutions whose filter solution resistance, PM2.5 concentration after filtration, PM10 concentration after filtration, and filter solution life cycle cost are all less than the solution threshold; The sorting module is used to sort the selected filter solutions in ascending order according to the total carbon footprint; The solution output module is used to output the final energy-saving solution.

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