CN110687278A - Detection and treatment device for carbon emission of asphalt mixture and operation method - Google Patents
Detection and treatment device for carbon emission of asphalt mixture and operation method Download PDFInfo
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- CN110687278A CN110687278A CN201910984083.5A CN201910984083A CN110687278A CN 110687278 A CN110687278 A CN 110687278A CN 201910984083 A CN201910984083 A CN 201910984083A CN 110687278 A CN110687278 A CN 110687278A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 179
- 239000000203 mixture Substances 0.000 title claims abstract description 103
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 95
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000012360 testing method Methods 0.000 claims abstract description 148
- 239000005431 greenhouse gas Substances 0.000 claims abstract description 97
- 238000005286 illumination Methods 0.000 claims abstract description 81
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 208
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 118
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 118
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 104
- 239000001569 carbon dioxide Substances 0.000 claims description 104
- 238000010521 absorption reaction Methods 0.000 claims description 61
- 239000001272 nitrous oxide Substances 0.000 claims description 58
- 239000007789 gas Substances 0.000 claims description 53
- 239000002344 surface layer Substances 0.000 claims description 44
- 238000012545 processing Methods 0.000 claims description 23
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- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
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- 238000005056 compaction Methods 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims description 4
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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- B01D53/1456—Removing acid components
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- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
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Abstract
A carbon emission detection and treatment device for an asphalt mixture and an operation method thereof comprise a double-compartment container, a temperature adjusting pipe, a humidity adjuster, a sunlight simulator, a temperature, humidity and illumination intensity control system, a temperature, humidity and illumination intensity control panel, a greenhouse gas detector, a test piece supporting platform, an air extractor and a greenhouse gas treatment system; the double-compartment container comprises a sealed container and a breathable container; the temperature adjusting pipe is arranged on the inner side wall of the sealed container; the humidity regulator is arranged in the ventilating container; the solar simulator is arranged in the middle of the top side in the sealed container; the greenhouse gas detector is arranged in the closed container, and the middle part of the bottom surface in the closed container is flatly provided with the test piece supporting platform; the sealed container is respectively communicated with the humidity regulator and the greenhouse gas treatment system; the air extractor is arranged in the greenhouse gas treatment system and communicated with the sealed container. The method can detect the carbon emission of the asphalt mixture under the set condition, can remove the collected carbon emission, and realizes environment-friendly detection.
Description
Technical Field
The invention belongs to the field of carbon emission testing and processing, and particularly relates to a device for detecting and processing carbon emission of an asphalt mixture and an operation method.
Background
Under the continuous push of global economic development and the pressure of increasing population, human beings further accelerate the consumption of resources, which will generate more greenhouse gases such as carbon dioxide (CO), methane (CH), nitrous oxide (N)2O), etc., so that the earth's ozone layer is suffering destruction, resulting in a global climate slowing. Further, global warming will adversely affect the natural ecosystem, such as climate abnormality, rise of sea level, thawing of frozen soil in glacier, desertification of land, late freezing and early thawing of ice in rivers (lakes), and decrease of species or quantity of animals and plants, which will lead to gradual deterioration of the living environment of human beings, and severe damage to the living environmentThe hypochondrium extends to human beings, other animals and plants and the like. This indicates the need to address the adverse effects of the greenhouse effect. Therefore, low-carbon production and life are optional strategies, which are beneficial to greatly reducing the carbon emission and need to be promoted by all trades.
Nowadays, the transportation industry is an important source of carbon emission, and is one of the key fields for implementing low-carbon production operation. At present, asphalt pavements gradually become the main pavement types of roads in China, particularly expressways, urban roads and roads of roads in China and provinces, and the surface layer of the asphalt pavements is asphalt mixture. Carbon emissions from bituminous mixes can be divided into two main areas. On one hand, the asphalt mixture forms an asphalt pavement through links such as material preparation, transportation, paving and rolling, and carbon emission is generated in the process; on the other hand, after the asphalt pavement is opened, the bare ground is subjected to the influence of natural climate (such as temperature, humidity, illumination and the like), and especially under the influence of high-temperature hot climate, carbon emission is continuously generated. It is known that the carbon emission of the asphalt mixture (or the asphalt surface layer) needs to be quantitatively studied so as to make reasonable measures to reduce the carbon emission.
In addition, because natural climate change is complex and changeable, researches on detecting carbon emission of the asphalt mixture (or the asphalt surface layer) under the influence of natural climate (such as temperature, humidity, illumination and the like) are relatively few at present; meanwhile, after the carbon emission of the asphalt mixture (or the asphalt surface layer) is detected, most of the generated carbon emission is directly discharged without taking measures to treat; it is thus to be noted that: although the number of carbon emissions of asphalt mixtures (or asphalt pavement) detected by a single laboratory in one area is not very large, the number of carbon emissions of asphalt mixtures (or asphalt pavement) detected by a plurality of laboratories in a plurality of times is also huge for the areas which are nationwide or larger.
Disclosure of Invention
The invention aims to provide a device for detecting and processing carbon emission of an asphalt mixture and an operation method thereof, so as to solve the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a carbon emission detection and treatment device for an asphalt mixture comprises a double-compartment container, a temperature adjusting pipe, a humidity regulator, a sunlight simulator, a temperature, humidity and illumination intensity control system, a temperature, humidity and illumination intensity control panel, a greenhouse gas detector, a test piece supporting platform, an air extractor and a greenhouse gas treatment system; the double-compartment container comprises a sealed container and a breathable container; the temperature adjusting pipe is arranged on the inner side wall of the sealed container; the humidity regulator is arranged in the ventilating container; the solar simulator is arranged in the middle of the top side in the sealed container; the greenhouse gas detector is arranged in the closed container, and the middle part of the bottom surface in the closed container is flatly provided with the test piece supporting platform; the sealed container is respectively communicated with the humidity regulator and the greenhouse gas treatment system; the air extractor is arranged at the position communicated with the sealed container in the greenhouse gas treatment system;
the temperature, humidity and illumination intensity control system accesses the temperature adjusting pipe, the humidity adjuster, the temperature and humidity sensor, the sunlight simulator, the illumination intensity sensor and the temperature, humidity and illumination intensity control panel into the control circuit through leads; the temperature, humidity and illumination intensity control system is arranged in the ventilating container; the temperature, humidity and illumination intensity control panel is arranged on the outer side wall of the breathable container.
Furthermore, the greenhouse gas treatment system comprises an air inlet pipe, a carbon dioxide absorption device, a methane absorption device, a nitrous oxide absorption device, an air outlet pipe valve and a greenhouse gas treatment system shell; the gas inlet pipe, the carbon dioxide absorption device, the methane absorption device, the nitrous oxide absorption device, the gas outlet pipe and the gas outlet pipe valve are all arranged in the shell of the greenhouse gas treatment system, the gas inlet pipe, the carbon dioxide absorption device, the methane absorption device, the nitrous oxide absorption device and the gas outlet pipe are sequentially connected, and the gas outlet pipe is provided with the gas outlet pipe valve; the sealed container is communicated with the greenhouse gas treatment system through an exhaust pipe, and exhaust pipe valves are arranged at two ends of the exhaust pipe.
Further, the greenhouse gas detector comprises a carbon dioxide detection unit, a methane detection unit and a nitrous oxide unit.
Furthermore, the temperature adjusting pipe comprises a heating element and a cooling element, and the heating element and the cooling element are both connected to the temperature, humidity and illumination intensity control system; the humidity regulator comprises a humidifying element and a dehumidifying element, the humidifying element and the dehumidifying element are both connected to a temperature, humidity and illumination intensity control system, a humidity gas pipe is arranged on the humidity regulator, one end of the humidity gas pipe is connected with the humidity regulator, and the other end of the humidity gas pipe is communicated with the sealed container; one end of the humidity gas pipe, which is communicated with the sealed container, is provided with a humidity gas pipe valve; the light source of the sunlight simulator is an incandescent lamp, a fluorescent lamp, an LED lamp or a halogen lamp.
Furthermore, a test piece is placed on the test piece supporting platform, and is provided with a temperature and humidity sensor and an illumination intensity sensor which are both placed at the central position of the upper surface of the test piece through a support, and a gap is reserved between the temperature and humidity sensor and the central position of the upper surface of the test piece; the support mounting is at test piece supporting platform edge, and the support is for adjusting the support that the height just can multi-direction removal.
Furthermore, the sealed container, the breathable container and the greenhouse gas treatment system are all provided with a pull-open door; and a sealing layer is arranged on the pull-open door on the sealing container.
Further, an operation method of the asphalt mixture carbon emission detection and treatment device comprises the following steps:
1) preparing an asphalt mixture test piece or an asphalt surface layer test piece:
① indoor forming test piece, forming asphalt mixture test piece by wheel milling forming instrument or standard compaction instrument;
②, drilling and sampling on site, namely drilling an asphalt surface layer test piece on site by using a drilling machine;
the volume of the test piece manufactured by the two methods is marked by VxRepresents;
2) for an indoor forming test piece, the asphalt mixture test piece and the test mold are placed for not less than 12 hours at normal temperature; for on-site drilling sampling, the asphalt surface layer test piece is made of light-tight material and the side face of the test piece is covered by a detachable test mold;
3) keeping the exhaust pipe valve on the exhaust pipe between the sealed container and the greenhouse gas treatment system closed, and opening the wetDegree gas-supply pipe valve sets up temperature, humidity and illumination intensity in the sealed container according to corresponding natural environment condition requirement, later starts the greenhouse gas detector and records the greenhouse gas volume in the sealed container this moment, as initial carbon emission: wherein the amounts of carbon dioxide, methane and nitrous oxide are each designated as Q1(0)、Q2(0) And Q3(0)；
4) Placing an asphalt mixture test piece or an asphalt surface layer test piece with a test mold in the middle of a test piece supporting platform in a sealed container, closing a pull-open door arranged on the front side of the sealed container, detecting the carbon emission of the asphalt mixture test piece or the asphalt surface layer test piece under different test time and illumination intensity, and respectively recording the emission of carbon dioxide, methane and nitrous oxide as Q after test time t1(t)、Q2(t) and Q3(t)；
5) And (3) processing greenhouse gases: after the process to be detected is finished, opening an exhaust pipe valve on an exhaust pipe between the sealed container and the greenhouse gas treatment system and an exhaust pipe valve arranged on the end of the exhaust pipe, starting an air extractor, and enabling carbon dioxide, methane and nitrous oxide gas to sequentially pass through a carbon dioxide absorption device, a methane absorption device and a nitrous oxide absorption device for treatment by adopting an air inlet pipe;
6) combining the step 3) and the step 4), calculating the carbon emission of the unit volume of the asphalt mixture or the asphalt surface course as follows:
in the formula, q1(t) carbon dioxide emission per unit volume of asphalt mixture or asphalt surface course; q. q.s2(t) is a unit volume of asphalt mixture orMethane emission of the asphalt surface layer; q. q.s3And (t) is the nitrous oxide emission per unit volume of the asphalt mixture or the asphalt surface course.
Compared with the prior art, the invention has the following technical effects:
1. according to the device for detecting and treating the carbon emission of the asphalt mixture, the greenhouse gas detector and the greenhouse gas treatment system are arranged, so that the environment-friendly detection function is conveniently and efficiently realized, and the device comprises the following two aspects: firstly, detecting the carbon emission of the asphalt mixture (or the asphalt surface layer) by adopting a greenhouse gas detector; secondly, a greenhouse gas treatment system is adopted to remove greenhouse gases generated in the detection process, and the main carbon sources of the greenhouse gases are carbon dioxide (CO), methane (CH) and nitrous oxide (N)2O), and the like.
2. The temperature adjusting pipe, the humidity adjuster and the solar simulator provided by the invention can simply and conveniently simulate the temperature, the humidity and the illumination intensity similar to those of the natural environment, and the parameters can be dynamically adjusted according to the requirements, so that the actual carbon emission conditions of the asphalt mixture (or the asphalt surface layer) in different natural environments can be effectively reflected. This may provide data support for establishing correlations between asphalt (or asphalt overlay) carbon emissions and the natural environment (e.g., temperature, humidity, and light intensity) as well as correlations between different types of asphalt (or asphalt overlay) and carbon emissions. Furthermore, according to the carbon emission condition of the asphalt mixture (or the asphalt surface course) and the related relation, a foundation can be laid for making a proper measure to reduce the carbon emission of the asphalt mixture (or the asphalt surface course).
3. The greenhouse gas detector and the greenhouse gas treatment system are two independent systems and are communicated through the exhaust pipe, so that the transportation, installation, disassembly, maintenance and replacement of equipment are facilitated.
4. The invention can detect the carbon emission of the asphalt mixture test piece (or the asphalt surface layer test piece) by a simple and convenient mode, and can deduce the carbon emission generated by adopting the asphalt mixture as the asphalt surface layer in the actual engineering by taking the carbon emission as the reference.
5. In conclusion, the invention has the advantages of simple integral structure, reasonable design, quick assembly, flexible operation and high economic value, realizes the simple and convenient detection of the carbon emission of the asphalt mixture (or the asphalt surface layer), eliminates the carbon emission generated in the detection process, effectively prevents the direct release of the carbon emission in the detection process, and has important application value and popularization significance.
Drawings
FIG. 1 is a schematic structural diagram of a device for detecting and processing carbon emission of an asphalt mixture according to the present invention;
FIG. 2 is a schematic diagram of the connection relationship between the temperature, humidity and illumination intensity control system, the temperature adjusting tube, the humidity adjuster, the temperature and humidity sensor, the sunlight simulator, the illumination intensity sensor and the temperature, humidity and illumination intensity control panel according to the present invention;
the various symbols in the figures illustrate: 1. a dual compartment container; 2. sealing the container; 3. a gas permeable container; 4. a solar simulator; 5. a temperature regulating tube; 6. a greenhouse gas detector; 7. a test piece support platform; 8. a test piece; 9. a temperature and humidity sensor; 10. an illumination intensity sensor; 11. a support; 12. a humidity regulator; 13. a humidity gas delivery pipe; 14. a humidity gas line valve; 15. a temperature, humidity and illumination intensity control system; 16. a temperature, humidity and illumination intensity adjusting panel; 17. opening the door; 18. an exhaust pipe; 19. an exhaust pipe valve; 20. an air extractor; 21. an air inlet pipe; 22. a carbon dioxide absorbing device; 23. a methane absorption unit; 24. a nitrous oxide absorber (24); 25. an air outlet pipe; 26. an outlet valve; 27. a greenhouse gas treatment system housing; 28. greenhouse gas treatment system.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a device for detecting and processing carbon emission of an asphalt mixture includes a double-compartment container 1, a temperature adjusting pipe 5, a humidity adjuster 12, a sunlight simulator 4, a temperature, humidity and illumination intensity control system 15, a temperature, humidity and illumination intensity control panel 16, a greenhouse gas detector 6, a test piece supporting platform 7, an air extractor 20 and a greenhouse gas processing system 28; the double-compartment container 1 comprises a sealed container 2 and a breathable container 3; the temperature adjusting pipe 5 is arranged on the inner side wall of the sealed container 2; the humidity regulator 12 is arranged in the air-permeable container 3; the solar simulator 4 is arranged in the middle of the top side in the sealed container; the greenhouse gas detector 6 is arranged in the closed container 2, and the middle part of the bottom surface in the closed container 2 is flatly provided with the test piece supporting platform 7; the sealed container 2 is respectively communicated with the humidity regulator 12 and the greenhouse gas treatment system 28; the air extractor 20 is arranged in the greenhouse gas treatment system and communicated with the sealed container 2;
the temperature, humidity and illumination intensity control system 15 accesses the temperature adjusting pipe 5, the humidity regulator 12, the temperature and humidity sensor 9, the sunlight simulator 4, the illumination intensity sensor 10 and the temperature, humidity and illumination intensity control panel 16 into the control circuit through leads; the temperature, humidity and illumination intensity control system 15 is arranged in the ventilating container 3; the temperature, humidity and illumination intensity control panel 16 is arranged on the outer side wall of the ventilating container 3.
The greenhouse gas treatment system 28 comprises an air inlet pipe 21, a carbon dioxide absorption device 22, a methane absorption device 23, a nitrous oxide absorption device 24, an air outlet pipe 25, an air outlet pipe valve 26 and a greenhouse gas treatment system shell 27; the gas inlet pipe 21, the carbon dioxide absorption device 22, the methane absorption device 23, the nitrous oxide absorption device 24, the gas outlet pipe 25 and the gas outlet pipe valve 26 are all arranged in a housing 27 of the greenhouse gas treatment system, the gas inlet pipe 21, the carbon dioxide absorption device 22, the methane absorption device 23, the nitrous oxide absorption device 24 and the gas outlet pipe 25 are sequentially connected, and the gas outlet pipe 25 is provided with the gas outlet pipe valve 26; the sealed container 2 is communicated with a greenhouse gas treatment system 28 through an exhaust pipe 18, and exhaust pipe valves 19 are arranged at two ends of the exhaust pipe 18.
The greenhouse gas detector 6 comprises a carbon dioxide detection unit, a methane detection unit and a nitrous oxide unit.
The temperature adjusting pipe 5 comprises a heating element and a cooling element, and the heating element and the cooling element are both connected to a temperature, humidity and illumination intensity control system 15; the humidity regulator 12 comprises a humidifying element and a dehumidifying element, the humidifying element and the dehumidifying element are both connected to a temperature, humidity and illumination intensity control system 15, a humidity gas conveying pipe 13 is arranged on the humidity regulator 12, one end of the humidity gas conveying pipe 13 is connected with the humidity regulator 12, and the other end of the humidity gas conveying pipe is communicated with the sealed container 2; a humidity gas pipe valve 14 is arranged at one end of the humidity gas pipe 13 communicated with the sealed container 2; the light source of the sunlight simulator 4 is an incandescent lamp, a fluorescent lamp, an LED lamp or a halogen lamp.
A test piece 8 is placed on the test piece supporting platform 7, a temperature and humidity sensor 9 and an illumination intensity sensor 10 are arranged on the test piece supporting platform, the temperature and humidity sensor 9 and the illumination intensity sensor 10 are both placed at the central position of the upper surface of the test piece 8 through a support 11, and a gap is reserved between the temperature and humidity sensor 9 and the central position of the upper surface of the test piece 8; the support 11 is arranged at the edge of the test piece supporting platform 7, and the support 11 is a support capable of adjusting the height and moving in multiple directions.
The sealed container 2, the ventilating container 3 and the greenhouse gas treatment system 28 are all provided with a pull-open door 17; the sealing layer is provided on the pull-open door 17 of the sealed container 2.
An operation method of a device for detecting and processing carbon emission of an asphalt mixture comprises the following steps:
1) preparing an asphalt mixture test piece or an asphalt surface layer test piece:
① indoor forming test piece, forming asphalt mixture test piece by wheel milling forming instrument or standard compaction instrument;
②, drilling and sampling on site, namely drilling an asphalt surface layer test piece on site by using a drilling machine;
the volume of the test piece manufactured by the two methods is marked by VxRepresents;
2) for an indoor forming test piece, the asphalt mixture test piece and the test mold are placed for not less than 12 hours at normal temperature; for on-site drilling sampling, the asphalt surface layer test piece is made of light-tight material and the side face of the test piece is covered by a detachable test mold;
3) keeping the valve of an exhaust pipe valve on an exhaust pipe between the sealed container and the greenhouse gas treatment system closed, opening a humidity gas transmission pipe valve, setting the temperature, the humidity and the illumination intensity in the sealed container according to the corresponding requirements of natural environmental conditions, and then starting a greenhouse gas detector to record the amount of greenhouse gas in the sealed container at the moment as the initial carbon emission amount: wherein the amounts of carbon dioxide, methane and nitrous oxide are each designated as Q1(0)、Q2(0) And Q3(0)；
4) Placing an asphalt mixture test piece or an asphalt surface layer test piece with a test mold in the middle of a test piece supporting platform in a sealed container, closing a pull-open door arranged on the front side of the sealed container, detecting the carbon emission of the asphalt mixture test piece or the asphalt surface layer test piece under different test time and illumination intensity, and respectively recording the emission of carbon dioxide, methane and nitrous oxide as Q after test time t1(t)、Q2(t) and Q3(t)；
5) And (3) processing greenhouse gases: after the process to be detected is finished, opening an exhaust pipe valve on an exhaust pipe between the sealed container and the greenhouse gas treatment system and an exhaust pipe valve arranged on the end of the exhaust pipe, starting an air extractor, and enabling carbon dioxide, methane and nitrous oxide gas to sequentially pass through a carbon dioxide absorption device, a methane absorption device and a nitrous oxide absorption device for treatment by adopting an air inlet pipe;
6) combining the step 3) and the step 4), calculating the carbon emission of the unit volume of the asphalt mixture or the asphalt surface course as follows:
in the formula, q1(t) carbon dioxide emission per unit volume of asphalt mixture or asphalt surface course; q. q.s2(t) the methane emission per unit volume of asphalt mixture or asphalt surface course; q. q.s3And (t) is the nitrous oxide emission per unit volume of the asphalt mixture or the asphalt surface course.
Fig. 1 is a schematic structural diagram of the present invention, which includes a double-compartment container 1, a temperature adjusting pipe 5, a humidity adjuster 12, a solar simulator 4, a temperature/humidity and illumination intensity control system 15, a temperature/humidity and illumination intensity control panel 16, a greenhouse gas detector 6, a test piece support platform 7, an air extractor 20, and a greenhouse gas processing system 28.
Fig. 2 is a schematic diagram of the connection relationship between the temperature, humidity and illumination intensity control system, the temperature adjusting tube, the humidity adjuster, the temperature and humidity sensor, the sunlight simulator, the illumination intensity sensor and the temperature, humidity and illumination intensity control panel according to the present invention. The temperature, humidity and illumination intensity control system 15 accesses the temperature adjusting tube 5, the humidity regulator 12, the temperature and humidity sensor 9, the sunlight simulator 4, the illumination intensity sensor 10 and the temperature, humidity and illumination intensity control panel 16 into the control circuit through leads.
The following 6 examples are provided to describe the carbon emission detection and treatment device and the operation method of the asphalt mixture.
Example 1
When a certain asphalt mixture is used for paving the upper surface of the asphalt pavement, the carbon emission of the asphalt mixture is detected, so that the carbon emission generated by adopting the asphalt mixture to pave the upper surface of the asphalt pavement in the future can be estimated, and the carbon emission generated in the detection process is processed. The specific implementation steps are as follows:
1. adopting a wheel-milling forming instrument to form an asphalt mixture test piece with the size of 300mm in length, 300mm in width and 100mm in thickness and the volume Vx＝9×10-3m3；
2. Placing the asphalt mixture test piece and the test mold together for not less than 12h at normal temperature;
3. keeping a valve on an exhaust pipe between a sealed container and a greenhouse gas treatment system closed, opening a humidity gas transmission pipe valve, setting the temperature, the humidity and the illumination intensity in the sealed container to be average temperature, average humidity and average illumination intensity in a certain period of time in an area where an entity highway engineering is located, and then starting a greenhouse gas detector to record the amount of greenhouse gas in the sealed container at the moment as an initial carbon emission amount: among them, carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) are each denoted as Q1(0)、Q2(0) And Q3(0)；
4. Will take bituminous mixture test piece of examination mouldPlacing the test piece in the middle of a test piece supporting platform in a sealed container, closing a pull-open door arranged on the front side of the sealed container, detecting the carbon emission of the asphalt mixture test piece at different test times, and detecting carbon dioxide (CO) after a test time t2) Methane (CH)4) And nitrous oxide (N)2O) are each designated as Q1(t)、Q2(t) and Q3(t)；
5. And (3) processing greenhouse gases: after the process of detection is finished, a valve on an exhaust pipe between the sealed container and the greenhouse gas treatment box and an air outlet pipe valve arranged on the end of the air outlet pipe are opened, an air extractor is started, and an air inlet pipe is adopted to enable carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) gas sequentially through carbon dioxide (CO)2) Absorption device, carbon dioxide (CO)2) Absorption apparatus, methane (CH)4) Absorption device, nitrous oxide (N)2O) treating with an absorption device;
6. and (4) combining the steps 3 and 4, calculating the carbon emission of the asphalt mixture in unit volume as follows:
in the formula, q1(t) carbon dioxide (CO) per unit volume of asphalt mixture2) Discharge capacity; q. q.s2(t) methane (CH) per unit volume of asphalt mixture4) Discharge capacity; q. q.s3(t) nitrous oxide (N) per unit volume of asphalt mixture2O) emissions.
Example 2
When a certain asphalt mixture is used for paving an upper surface layer of an asphalt pavement, two analysis conditions are respectively set: for condition a, temperature is dynamically changing, with humidity and illumination intensity remaining unchanged; for condition B, the illumination intensity is dynamically changed, with temperature and humidity remaining unchanged; and respectively detecting the carbon emission of the asphalt surface layer under the analysis conditions, so that the carbon emission generated by paving the upper surface layer of the asphalt pavement by adopting the asphalt mixture in the future can be estimated, and meanwhile, the carbon emission generated in the detection process is processed. The specific implementation steps are as follows:
1. adopting a wheel-milling forming instrument to form an asphalt mixture test piece with the size of 300mm in length, 300mm in width and 100mm in thickness and the volume Vx＝9×10-3m3；
2. Placing the asphalt mixture test piece and the test mold together for not less than 12h at normal temperature;
3. keeping a valve on an exhaust pipe between the sealed container and the greenhouse gas treatment system closed, opening a humidity gas pipe valve, and respectively setting two analysis conditions: for the condition A, setting the humidity and the illumination intensity in the sealed container as the average humidity and the average illumination intensity in a certain period of time in the area where the entity highway engineering is located, and setting the temperature as dynamically changing; for the condition B, setting the temperature and the humidity in the sealed container as the average temperature and the average humidity in a certain period of time in the area where the entity highway engineering is located, and setting the illumination intensity as being dynamically changed; then starting a greenhouse gas detector to record the amount of greenhouse gas in the closed container at the moment, wherein the amount is used as the initial carbon emission: among them, carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) are each denoted as Q1(0)、Q2(0) And Q3(0)；
4. Placing the asphalt mixture test piece with the test mold in the middle of a test piece supporting platform in a sealed container, closing a pull-open door arranged on the front side of the sealed container, respectively detecting the carbon emission of the asphalt mixture test piece at different test time and temperature and the carbon emission at different test time and illumination intensity, and after a test time t, detecting carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) are each designated as Q1(t)、Q2(t) and Q3(t)；
5.And (3) processing greenhouse gases: after the process of detection is finished, a valve on an exhaust pipe between the sealed container and the greenhouse gas treatment box and an air outlet pipe valve arranged on the end of the air outlet pipe are opened, an air extractor is started, and an air inlet pipe is adopted to enable carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) gas sequentially through carbon dioxide (CO)2) Absorption device, carbon dioxide (CO)2) Absorption apparatus, methane (CH)4) Absorption device, nitrous oxide (N)2O) treating with an absorption device;
6. and (4) combining the steps 3 and 4, calculating the carbon emission of the asphalt mixture in unit volume as follows:
in the formula, q1(t) carbon dioxide (CO) per unit volume of asphalt mixture2) Discharge capacity; q. q.s2(t) methane (CH) per unit volume of asphalt mixture4) Discharge capacity; q. q.s3(t) nitrous oxide (N) per unit volume of asphalt mixture2O) emissions.
Example 3
When a certain asphalt mixture is used for paving the upper surface of the asphalt pavement, the carbon emission of the asphalt mixture is detected, so that the carbon emission generated by adopting the asphalt mixture to pave the upper surface of the asphalt pavement in the future can be estimated, and the carbon emission generated in the detection process is processed. The specific implementation steps are as follows:
1. adopting a standard compaction tester to form an asphalt mixture test piece with the diameter phi of 101.6mm multiplied by the height h of 63.5mm and the volume Vx＝5.148×10-4m3；
2. Placing the asphalt mixture test piece and the test mold together for not less than 12h at normal temperature;
3. keeping a valve on an exhaust pipe between a sealed container and a greenhouse gas treatment system closed, opening a humidity gas transmission pipe valve, setting the temperature, the humidity and the illumination intensity in the sealed container to be average temperature, average humidity and average illumination intensity in a certain period of time in an area where an entity highway engineering is located, and then starting a greenhouse gas detector to record the amount of greenhouse gas in the sealed container at the moment as an initial carbon emission amount: among them, carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) are each denoted as Q1(0)、Q2(0) And Q3(0)；
4. Placing the asphalt mixture test piece with the test mold in the middle of a test piece supporting platform in a sealed container, closing a pull-open door arranged on the front side of the sealed container, detecting the carbon emission of the asphalt mixture test piece at different test times, and detecting carbon dioxide (CO) after the test time t2) Methane (CH)4) And nitrous oxide (N)2O) are each designated as Q1(t)、Q2(t) and Q3(t)；
5. And (3) processing greenhouse gases: after the process of detection is finished, a valve on an exhaust pipe between the sealed container and the greenhouse gas treatment box and an air outlet pipe valve arranged on the end of the air outlet pipe are opened, an air extractor is started, and an air inlet pipe is adopted to enable carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) gas sequentially through carbon dioxide (CO)2) Absorption device, carbon dioxide (CO)2) Absorption apparatus, methane (CH)4) Absorption device, nitrous oxide (N)2O) treating with an absorption device;
6. and (4) combining the steps 3 and 4, calculating the carbon emission of the asphalt mixture in unit volume as follows:
in the formula, q1(t) carbon dioxide (CO) per unit volume of asphalt mixture2) Discharge capacity; q. q.s2(t) methane (CH) per unit volume of asphalt mixture4) Discharge capacity; q. q.s3(t) nitrous oxide (N) per unit volume of asphalt mixture2O) emissions.
Example 4
When a certain asphalt mixture is used for paving an upper surface layer of an asphalt pavement, two analysis conditions are respectively set: for condition a, temperature is dynamically changing, with humidity and illumination intensity remaining unchanged; for condition B, the illumination intensity is dynamically changed, with temperature and humidity remaining unchanged; and respectively detecting the carbon emission of the asphalt surface layer under the analysis conditions, so that the carbon emission generated by paving the upper surface layer of the asphalt pavement by adopting the asphalt mixture in the future can be estimated, and meanwhile, the carbon emission generated in the detection process is processed. The specific implementation steps are as follows:
1. adopting a standard compaction tester to form an asphalt mixture test piece with the diameter phi of 101.6mm multiplied by the height h of 63.5mm and the volume Vx＝5.148×10-4m3；
2. Placing the asphalt mixture test piece and the test mold together for not less than 12h at normal temperature;
3. keeping a valve on an exhaust pipe between the sealed container and the greenhouse gas treatment system closed, opening a humidity gas pipe valve, and respectively setting two analysis conditions: for the condition A, setting the humidity and the illumination intensity in the sealed container as the average humidity and the average illumination intensity in a certain period of time in the area where the entity highway engineering is located, and setting the temperature as dynamically changing; for the condition B, setting the temperature and the humidity in the sealed container as the average temperature and the average humidity in a certain period of time in the area where the entity highway engineering is located, and setting the illumination intensity as being dynamically changed; then a greenhouse gas detector is started to record the amount of the greenhouse gas in the closed container,as initial carbon emissions: among them, carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) are each denoted as Q1(0)、Q2(0) And Q3(0)；
4. Placing the asphalt mixture test piece with the test mold in the middle of a test piece supporting platform in a sealed container, closing a pull-open door arranged on the front side of the sealed container, respectively detecting the carbon emission of the asphalt mixture test piece at different test time and temperature and the carbon emission at different test time and illumination intensity, and after a test time t, detecting carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) are each designated as Q1(t)、Q2(t) and Q3(t)；
5. And (3) processing greenhouse gases: after the process of detection is finished, a valve on an exhaust pipe between the sealed container and the greenhouse gas treatment box and an air outlet pipe valve arranged on the end of the air outlet pipe are opened, an air extractor is started, and an air inlet pipe is adopted to enable carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) gas sequentially through carbon dioxide (CO)2) Absorption device, carbon dioxide (CO)2) Absorption apparatus, methane (CH)4) Absorption device, nitrous oxide (N)2O) treating with an absorption device;
6. and (4) combining the steps 3 and 4, calculating the carbon emission of the asphalt mixture in unit volume as follows:
in the formula, q1(t) carbon dioxide (CO) per unit volume of asphalt mixture2) Discharge capacity; q. q.s2(t) methane (CH) per unit volume of asphalt mixture4) Discharge capacity; q. q.s3(t) nitrous oxide (N) per unit volume of asphalt mixture2O) emissions.
Example 5
And (3) for a certain entity highway engineering, assuming that the thickness of the asphalt surface layer is h (m), detecting the carbon emission of the asphalt surface layer, and simultaneously processing the carbon emission generated in the detection process. The specific implementation steps are as follows:
1. drilling a test piece with the diameter phi of 100mm multiplied by the thickness h mm on the asphalt surface layer in site, wherein the volume V isx＝7.854h×10-6m3；
2. Placing the asphalt surface layer test piece into a detachable test mold with the internal dimension of light-tight material with the diameter phi of 100mm multiplied by the thickness h mm, and covering the side surface of the test piece so as to simulate that only the surface of the actual asphalt pavement is irradiated by sunlight;
3. keeping the valve on the exhaust pipe between the sealed container and the greenhouse gas processing box closed, opening the humidity gas transmission pipe valve, setting the temperature, the humidity and the illumination intensity in the sealed container to be the average temperature, the average humidity and the average illumination intensity in a certain period of time in the area where the entity highway engineering is located, and then starting the greenhouse gas detector to record the amount of greenhouse gas in the sealed container at the moment as the initial carbon emission amount: among them, carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) are each denoted as Q1(0)、Q2(0) And Q3(0)；
4. Placing the asphalt surface layer test piece with the test mold in the middle of a test piece supporting platform in a sealed container, closing a pull-open door arranged on the front side of the sealed container, detecting the carbon emission of the asphalt surface layer test piece at different test times, and detecting carbon dioxide (CO) after the test time t2) Methane (CH)4) And nitrous oxide (N)2O) are each designated as Q1(t)、Q2(t) and Q3(t)；
5. And (3) processing greenhouse gases: after the process of detection is finished, a valve on the exhaust pipe between the sealed container and the greenhouse gas treatment system and an exhaust pipe valve arranged on the end of the exhaust pipe are opened, an air extractor is started,carbon dioxide (CO) using inlet pipe2) Methane (CH)4) And nitrous oxide (N)2O) gas sequentially through carbon dioxide (CO)2) Absorption device, carbon dioxide (CO)2) Absorption apparatus, methane (CH)4) Absorption device, nitrous oxide (N)2O) treating with an absorption device;
6. and (4) combining the steps 3 and 4, calculating the carbon emission of the asphalt surface course in unit volume as follows:
in the formula, q1(t) carbon dioxide (CO) per unit volume of asphalt surface course2) Discharge capacity; q. q.s2(t) methane (CH) per unit volume of bituminous surface4) Discharge capacity; q. q.s3(t) nitrous oxide (N) per unit volume of asphalt pavement2O) emissions.
Example 6
For a certain entity highway engineering, assuming that the thickness of an asphalt surface layer is h (m), two analysis conditions are respectively set: for condition a, temperature is dynamically changing, with humidity and illumination intensity remaining unchanged; for condition B, the illumination intensity is dynamically changed, with temperature and humidity remaining unchanged; and respectively detecting the carbon emission of the asphalt surface layer under the analysis conditions, and simultaneously treating the carbon emission generated in the detection process. The specific implementation steps are as follows:
1. drilling a test piece with the diameter phi of 100mm multiplied by the thickness h mm on the asphalt surface layer in site, wherein the volume V isx＝7.854h×10-6m3；
2. Placing the asphalt surface layer test piece into a detachable test mold with the internal dimension of light-tight material with the diameter phi of 100mm multiplied by the thickness h mm, and covering the side surface of the test piece so as to simulate that only the surface of the actual asphalt pavement is irradiated by sunlight;
3. keeping a valve on an exhaust pipe between the sealed container and the greenhouse gas treatment system closed, opening a humidity gas pipe valve, and respectively setting two analysis conditions: for the condition A, setting the humidity and the illumination intensity in the sealed container as the average humidity and the average illumination intensity in a certain period of time in the area where the entity highway engineering is located, and setting the temperature as dynamically changing; for the condition B, setting the temperature and the humidity in the sealed container as the average temperature and the average humidity in a certain period of time in the area where the entity highway engineering is located, and setting the illumination intensity as being dynamically changed; then starting a greenhouse gas detector to record the amount of greenhouse gas in the closed container at the moment, wherein the amount is used as the initial carbon emission: among them, carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) are each denoted as Q1(0)、Q2(0) And Q3(0)；
4. Placing the asphalt surface layer test piece with the test mold in the middle of a test piece supporting platform in a sealed container, closing a pull-open door arranged on the front side of the sealed container, respectively detecting the carbon emission of the asphalt surface layer test piece at different test time and temperature and the carbon emission at different test time and illumination intensity, and after the test time t, detecting carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) are each denoted as Q1(t)、Q2(t) and Q3(t)；
5. And (3) processing greenhouse gases: after the process of detection is finished, a valve on an exhaust pipe between the sealed container and the greenhouse gas treatment system and an outlet pipe valve arranged on the end of the outlet pipe are opened, an air extractor is started, and an air inlet pipe is adopted to enable carbon dioxide (CO)2) Methane (CH)4) And nitrous oxide (N)2O) gas sequentially through carbon dioxide (CO)2) Absorption device, carbon dioxide (CO)2) Absorption apparatus, methane (CH)4) Absorption device, nitrous oxide (N)2O) treating with an absorption device;
6. finally, combining steps 3 and 4, calculating the carbon emission of the asphalt surface course per unit volume as follows:
in the formula, q1(t) carbon dioxide (CO) per unit volume of asphalt surface course2) Discharge capacity; q. q.s2(t) methane (CH) per unit volume of bituminous surface4) Discharge capacity; q. q.s3(t) nitrous oxide (N) per unit volume of asphalt pavement2O) emissions.
Claims (7)
1. The device for detecting and processing the carbon emission of the asphalt mixture is characterized by comprising a double-compartment container (1), a temperature adjusting pipe (5), a humidity regulator (12), a sunlight simulator (4), a temperature and humidity and illumination intensity control system (15), a temperature and humidity and illumination intensity control panel (16), a greenhouse gas detector (6), a test piece supporting platform (7), an air extractor (20) and a greenhouse gas processing system (28); the double-compartment container (1) comprises a sealed container (2) and a breathable container (3); the temperature adjusting pipe (5) is arranged on the inner side wall of the sealed container (2); the humidity regulator (12) is arranged in the air-permeable container (3); the solar simulator (4) is arranged in the middle of the top side in the sealed container; the greenhouse gas detector (6) is arranged in the closed container (2), and the middle part of the bottom surface in the closed container (2) is flatly provided with the test piece supporting platform (7); the sealed container (2) is respectively communicated with a humidity regulator (12) and a greenhouse gas treatment system (28); the air extractor (20) is arranged at the position communicated with the sealed container (2) in the greenhouse gas treatment system;
the temperature, humidity and illumination intensity control system (15) accesses the temperature adjusting pipe (5), the humidity adjuster (12), the temperature and humidity sensor (9), the sunlight simulator (4), the illumination intensity sensor (10) and the temperature, humidity and illumination intensity control panel (16) into the control circuit through leads; the temperature, humidity and illumination intensity control system (15) is arranged in the ventilating container (3); a temperature, humidity and illumination intensity control panel (16) is arranged on the outer side wall of the air-permeable container (3).
2. The detection and treatment device for carbon emission of asphalt mixture according to claim 1, wherein the greenhouse gas treatment system (28) comprises an air inlet pipe (21), a carbon dioxide absorption device (22), a methane absorption device (23), a nitrous oxide absorption device (24), an air outlet pipe (25), an air outlet pipe valve (26) and a greenhouse gas treatment system shell (27); the gas inlet pipe (21), the carbon dioxide absorption device (22), the methane absorption device (23), the nitrous oxide absorption device (24), the gas outlet pipe (25) and the gas outlet pipe valve (26) are all arranged in a greenhouse gas treatment system shell (27), the gas inlet pipe (21), the carbon dioxide absorption device (22), the methane absorption device (23), the nitrous oxide absorption device (24) and the gas outlet pipe (25) are sequentially connected, and the gas outlet pipe (25) is provided with the gas outlet pipe valve (26); the sealed container (2) is communicated with a greenhouse gas treatment system (28) through an exhaust pipe (18), and exhaust pipe valves (19) are arranged at two ends of the exhaust pipe (18).
3. The asphalt mixture carbon emission detecting and processing device according to claim 1, wherein the greenhouse gas detector (6) comprises a carbon dioxide detecting unit, a methane detecting unit and a nitrous oxide detecting unit.
4. The detection and processing device for carbon emission of asphalt mixture according to claim 1, wherein the temperature adjusting pipe (5) comprises a heating element and a cooling element, and the heating element and the cooling element are both connected to a temperature, humidity and illumination intensity control system (15); the humidity regulator (12) comprises a humidifying element and a dehumidifying element, the humidifying element and the dehumidifying element are both connected to a temperature, humidity and illumination intensity control system (15), a humidity air conveying pipe (13) is arranged on the humidity regulator (12), one end of the humidity air conveying pipe (13) is connected with the humidity regulator (12), and the other end of the humidity air conveying pipe is communicated with the sealed container (2); one end of the humidity gas pipe (13) communicated with the sealed container (2) is provided with a humidity gas pipe valve (14); the light source of the sunlight simulator (4) is an incandescent lamp, a fluorescent lamp, an LED lamp or a halogen lamp.
5. The carbon emission amount detection and treatment device for the asphalt mixture according to claim 1, wherein a test piece (8) is placed on a test piece supporting platform (7), a temperature and humidity sensor (9) and an illumination intensity sensor (10) are arranged, the temperature and humidity sensor (9) and the illumination intensity sensor (10) are placed at the central position of the upper surface of the test piece (8) through a support (11), and a gap is reserved between the temperature and humidity sensor and the central position of the upper surface of the test piece (8); the support (11) is arranged at the edge of the test piece supporting platform (7), and the support (11) can adjust the height and can move in multiple directions.
6. The carbon emission detection and treatment device for the asphalt mixture as claimed in claim 1, wherein the sealing container (2), the ventilating container (3) and the greenhouse gas treatment system (28) are all provided with a pull-open door (17); a sealing layer is arranged on the pull-open door (17) on the sealing container (2).
7. An operation method of an asphalt mixture carbon emission detection and treatment device, which is based on any one of claims 1 to 6, and comprises the following steps:
1) preparing an asphalt mixture test piece or an asphalt surface layer test piece:
① indoor forming test piece, forming asphalt mixture test piece by wheel milling forming instrument or standard compaction instrument;
②, drilling and sampling on site, namely drilling an asphalt surface layer test piece on site by using a drilling machine;
the volume of the test piece manufactured by the two methods is marked by VxRepresents;
2) for an indoor forming test piece, the asphalt mixture test piece and the test mold are placed for not less than 12 hours at normal temperature; for on-site drilling sampling, the asphalt surface layer test piece is made of light-tight material and the side face of the test piece is covered by a detachable test mold;
3) maintaining sealed container and greenhouse gasThe exhaust pipe valve on the exhaust pipe between the management system is closed, the humidity gas transmission pipe valve is opened, the temperature, the humidity and the illumination intensity in the sealed container are set according to the corresponding natural environment condition requirements, and then the greenhouse gas detector is started to record the amount of greenhouse gas in the sealed container at the moment, and the amount of greenhouse gas is taken as the initial carbon emission: wherein the amounts of carbon dioxide, methane and nitrous oxide are each designated as Q1(0)、Q2(0) And Q3(0)；
4) Placing an asphalt mixture test piece or an asphalt surface layer test piece with a test mold in the middle of a test piece supporting platform in a sealed container, closing a pull-open door arranged on the front side of the sealed container, detecting the carbon emission of the asphalt mixture test piece or the asphalt surface layer test piece under different test time and illumination intensity, and respectively recording the emission of carbon dioxide, methane and nitrous oxide as Q after test time t1(t)、Q2(t) and Q3(t)；
5) And (3) processing greenhouse gases: after the process to be detected is finished, opening an exhaust pipe valve on an exhaust pipe between the sealed container and the greenhouse gas treatment system and an exhaust pipe valve arranged on the end of the exhaust pipe, starting an air extractor, and enabling carbon dioxide, methane and nitrous oxide gas to sequentially pass through a carbon dioxide absorption device, a methane absorption device and a nitrous oxide absorption device for treatment by adopting an air inlet pipe;
6) combining the step 3) and the step 4), calculating the carbon emission of the unit volume of the asphalt mixture or the asphalt surface course as follows:
in the formula, q1(t) asphalt mixture per unit volumeOr carbon dioxide emission of the asphalt surface layer; q. q.s2(t) the methane emission per unit volume of asphalt mixture or asphalt surface course; q. q.s3And (t) is the nitrous oxide emission per unit volume of the asphalt mixture or the asphalt surface course.
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