CN112200480A - Data collection method for engine cylinder head full life cycle evaluation - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000013480 data collection Methods 0.000 title claims abstract description 30
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 31
- 238000009826 distribution Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 18
- 238000005266 casting Methods 0.000 claims description 15
- 238000003754 machining Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 231100000331 toxic Toxicity 0.000 claims description 3
- 230000002588 toxic effect Effects 0.000 claims description 3
- 238000011160 research Methods 0.000 description 8
- 238000003723 Smelting Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
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- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
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- 238000000605 extraction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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Abstract
The invention discloses a data collection method for evaluating the full life cycle of an engine cylinder cover, which comprises the following steps: step one, determining a selection principle and a distribution principle of data collection; analyzing and determining links that corresponding data cannot be directly acquired in the whole life cycle process of the engine cylinder cover; analyzing factors influencing the evaluation result in the engine cylinder head full life cycle process in the step one; and step four, determining a data collection method aiming at the factors in the step three. The invention can scientifically, objectively and comprehensively collect data which cannot be directly acquired in the production stage of the engine cylinder cover.
Description
Technical Field
The invention belongs to the technical field of life cycle evaluation of engines, and particularly relates to a data collection method for full life cycle evaluation of an engine cylinder cover.
Background
In 2018, the automobiles all over the country emit 2859.3 million tons of carbon monoxide, 326.7 million tons of hydrocarbon, 521.9 million tons of nitrogen oxide and 42.2 million tons of particulate matters, so that the environmental pollution generated by the automobiles is not ignored. The Life Cycle evaluation (LCA) of the automobile product is a standard evaluation method of ecological design, has been recognized in the global scope, is currently included in ISO14040 series and GB/T24040 series, relates to various evaluation contents such as carbon footprint, water footprint, carbon emission accounting and the like, and is one of the key technologies of the ecological design of the automobile product.
The engine is a core part of an automobile, development of life cycle evaluation research of an engine cylinder cover can help enterprises analyze environmental influences of raw material mining, production, manufacturing, use and recovery stages and identify key points from the environmental influences so as to provide an optimization scheme, and the engine cylinder cover life cycle evaluation research system has great significance for energy conservation and emission reduction of the full life cycle of the engine. In order to make the evaluation result more consistent with the actual situation, the data quality is particularly important. After the purpose and scope of the study is determined, data collection is performed, and field data is generally derived from plant field research data and review reports. However, at present, domestic LCA research starts late, theories are more, the site conditions of factories are generally complex, data cannot be directly acquired, and the determination of a data collection method directly influences the evaluation result of environmental influence. Therefore, a scientific and reasonable data collection method is established by analyzing the life cycle, so that the method is very important for evaluating and researching the life cycle of the engine cylinder cover, and has certain guiding value for ecological design research of other automobile products.
For example, patent document CN108229793A discloses a new energy automobile energy saving and emission reduction analysis method, which includes: step 1: establishing a life cycle evaluation model; step 2: acquiring data; and step 3: model results and analysis, but the method does not mention a data collection method for engine head full life cycle evaluation.
Therefore, it is necessary to develop a new data collection method for engine cylinder head full life cycle evaluation.
Disclosure of Invention
The invention provides a data collection method for evaluating the full life cycle of an engine cylinder cover, which can realize scientific, objective and comprehensive collection of data which cannot be directly obtained in the production stage of the engine cylinder cover.
The invention discloses a data collection method for evaluating the full life cycle of an engine cylinder cover, which comprises the following steps: step one, determining a selection principle and a distribution principle of data collection;
the data collection rules are as follows:
(a1) all inputs of energy are listed;
(a2) all inputs for raw materials are listed;
(a3) all emissions are listed;
(a4) the consumption and the emission of the infrastructure of roads and plants, the equipment of each process, personnel in the plant area and living facilities are not considered;
(a5) any toxic and harmful materials and substances are listed;
distribution principles of the data collection:
if the input and the output of the material flow and the energy flow in the production process can be truly counted, the input and the output of the material flow and the energy flow in the production process are counted;
otherwise, distributing according to physical characteristics, wherein the physical characteristics comprise working hours, mass, energy, area and volume, and selecting the physical characteristics with the highest correlation degree according to the correlation degree of distribution parameters and energy to distribute;
analyzing and determining links that corresponding data cannot be directly acquired in the whole life cycle process of the engine cylinder cover;
thirdly, analyzing factors influencing the evaluation result in the whole life cycle process of the engine cylinder cover in the first step, wherein the factors are as follows:
(b1) each procedure of the casting link has no independent energy measuring instrument;
(b2) the productivity saturation degrees of the casting and machining workshop are different;
(b3) the product types are diversified;
step four, determining a data collection method of a link which cannot directly acquire corresponding data in the step two aiming at the factors in the step three, wherein the method specifically comprises the following steps:
(1) the energy input is distributed according to the equipment power ratio of each procedure in the production process,
wherein, ω isiTo the energy distribution coefficient, PiIs the power of the equipment of the ith process,
is the sum of the equipment power of each procedure;
(2) selecting a production workshop with saturated productivity for accounting;
(3) the input and output of the materials are distributed according to the mass proportion of the product,
λpm is the proportion of the materialspFor the quality of the p-th product on a production line,
the quality of all products on one production line.
Further, in the second step, a link that corresponding data cannot be directly acquired in the whole life cycle process of the engine cylinder cover is a casting link and a machining link.
The invention has the following advantages: the invention can scientifically, objectively and comprehensively collect data which cannot be directly obtained in the production stage, and provides a scientific and effective field data collection method for the life cycle evaluation and calculation of the engine cylinder cover.
Drawings
FIG. 1 is a flow chart of the present embodiment;
fig. 2 is a main process flow of casting and machining of the engine cylinder head in the embodiment.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, in the present embodiment, a data collection method for engine cylinder head full life cycle evaluation includes the following steps:
step one, determining a selection principle and a distribution principle of data collection;
the data collection rules are as follows:
(a1) all inputs of energy are listed;
(a2) all inputs for raw materials are listed;
(a3) all emissions are listed;
(a4) the consumption and the emission of the infrastructure of roads and plants, the equipment of each process, personnel in the plant area and living facilities are not considered;
(a5) any toxic and harmful materials and substances are listed.
In this embodiment, the distribution principle of the data collection is as follows:
if the input and the output of the material flow and the energy flow in the production process can be truly counted, the input and the output of the material flow and the energy flow in the production process are counted;
otherwise, the physical characteristics are distributed according to the physical characteristics, wherein the physical characteristics comprise working hours, mass, energy, area and volume, and the physical characteristics with the highest correlation degree are selected according to the association degree of the distribution parameters and the energy for distribution.
When the physical property distribution cannot be applied, the physical property distribution can be expressed in a mode of reflecting other relations between the product and the function, such as the economic value proportion.
Analyzing and determining links that corresponding data cannot be directly acquired in the whole life cycle process of the engine cylinder cover; the link that can not directly acquire corresponding data in the whole life cycle process of the engine cylinder cover is a casting link and a machining link.
Thirdly, analyzing factors influencing the evaluation result in the whole life cycle process of the engine cylinder cover in the first step, wherein the factors are as follows:
(b1) each procedure of the casting link has no independent energy measuring instrument;
(b2) the productivity saturation degrees of the casting and machining workshop are different;
(b3) the product types are diversified;
step four, determining a data collection method of a link (namely a casting link and a machining link) which cannot directly acquire corresponding data in the step two aiming at the factors in the step three, and specifically comprising the following steps of:
(1) the energy input is distributed according to the equipment power ratio of each procedure in the production process,
Taking a casting process as an example, as shown in fig. 2, the casting process of the engine cylinder head generally comprises the steps of smelting, pouring, core making, post-treatment, heat treatment and the like, wherein equipment in the smelting process has two working states of heating and heat preservation, so that the smelting process is carried out
Wherein, PHFor the heating power of the smelting process plant, PKFor holding power of the melting process equipment, tHFor heating time, tKThe heat preservation time is adopted; for other processes except the smelting process, the power of the equipment can be obtained by looking at the rated power of the equipment.
(2) And selecting a production workshop with saturated productivity for accounting.
(3) The input and output of the materials are distributed according to the mass proportion of the product,
In the production process of the engine cylinder cover, one production line can simultaneously produce various types of engine cylinder covers, and in such a case, the input and output of materials of the whole production line cannot be all classified into a specific product, so the input and output of the materials need to be distributed according to the mass proportion of the product.
The life cycle list data is derived from research data of engine plants in the north of the Yangtze river, the collection period is 2018 all the year, and the data collection method comprises the following steps:
raw material acquisition phase data-starting with the extraction of resources from nature and ending with the entry of automotive products into product production facilities. The basic data of the material is from China Automobile Life Cycle Database (CALCD) and factory research data, and can be directly obtained.
In the production stage of the parts, starting from the raw materials entering a production site and ending when the parts leave a production factory, the research production stage mainly calculates the energy consumption and emission data of the casting, machining and other processes. And 4, the emission data is derived from factory environmental assessment data, and the casting and machining links are subjected to accounting by the method of the step four.
Claims (2)
1. A data collection method for engine cylinder head full life cycle evaluation is characterized in that:
step one, determining a selection principle and a distribution principle of data collection;
the data collection rules are as follows:
(a1) all inputs of energy are listed;
(a2) all inputs for raw materials are listed;
(a3) all emissions are listed;
(a4) the consumption and the emission of the infrastructure of roads and plants, the equipment of each process, personnel in the plant area and living facilities are not considered;
(a5) any toxic and harmful materials and substances are listed;
distribution principles of the data collection:
if the input and the output of the material flow and the energy flow in the production process can be truly counted, the input and the output of the material flow and the energy flow in the production process are counted;
otherwise, distributing according to physical characteristics, wherein the physical characteristics comprise working hours, mass, energy, area and volume, and selecting the physical characteristics with the highest correlation degree according to the correlation degree of distribution parameters and energy to distribute;
analyzing and determining links that corresponding data cannot be directly acquired in the whole life cycle process of the engine cylinder cover;
thirdly, analyzing factors influencing the evaluation result in the whole life cycle process of the engine cylinder cover in the first step, wherein the factors are as follows:
(b1) each procedure of the casting link has no independent energy measuring instrument;
(b2) the productivity saturation degrees of the casting and machining workshop are different;
(b3) the product types are diversified;
step four, determining a data collection method of a link which cannot directly acquire corresponding data in the step two aiming at the factors in the step three, wherein the method specifically comprises the following steps:
(1) the energy input is distributed according to the equipment power ratio of each procedure in the production process,
wherein, ω isiTo the energy distribution coefficient, PiIs the power of the equipment of the ith process,
is the sum of the equipment power of each procedure;
(2) selecting a production workshop with saturated productivity for accounting;
(3) the input and output of the materials are distributed according to the mass proportion of the product,
λpis a material proportion mpFor the quality of the p-th product on a production line,
the quality of all products on one production line.
2. The data collection method for engine head full life cycle evaluation according to claim 1, wherein: and in the second step, the link that corresponding data cannot be directly acquired in the whole life cycle process of the engine cylinder cover is a casting link and a machining link.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113065813A (en) * | 2021-03-12 | 2021-07-02 | 云汉芯城（上海）互联网科技股份有限公司 | Material list processing method and device and computer storage medium |
| CN116050934A (en) * | 2023-02-14 | 2023-05-02 | 中国特种设备检测研究院 | Product carbon footprint accounting method of industrial boiler |
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- 2020-10-20 CN CN202011127369.0A patent/CN112200480B/en active Active
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Cited By (4)
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| CN113065813A (en) * | 2021-03-12 | 2021-07-02 | 云汉芯城（上海）互联网科技股份有限公司 | Material list processing method and device and computer storage medium |
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| CN116050934B (en) * | 2023-02-14 | 2024-01-19 | 中国特种设备检测研究院 | Product carbon footprint accounting method of industrial boiler |
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