Multi-sampling-tube gas sampling device for measuring carbon emission of asphalt mixture

Abstract

The utility model discloses a multi-sampling-pipe gas sampling device for measuring carbon emission of an asphalt mixture, the multi-sampling-pipe gas sampling device comprises a control unit, a rack unit, a driving unit and a plurality of sampling units, each sampling unit comprises a sampling pipe, a gas inlet pipe, a valve unit, a piston part, a first screw rod, two guide rods, a connecting plate and a driven wheel, and the driven wheel is provided with a first threaded hole; the rack unit comprises a first supporting plate, a second supporting plate and a third supporting plate. The third supporting plate is provided with a plurality of guide holes and a plurality of second penetrating holes, and the third supporting plate is fixedly connected with a limiting frame. A sliding rail part and two end blocks are fixed to the top end of the third supporting plate, a sliding base is installed at the sliding rail part, a lifting base is connected to the sliding base through an electric lifting rod, a second motor is installed at the lifting base, and a driving wheel is installed on the second motor. According to the application, automatic sampling can be realized, so that the carbon emission can be measured more conveniently.

Description

Technical Field

[0001] This application relates to the field of road construction, specifically to a multi-sampling tube gas sampling device for measuring carbon emissions from asphalt mixtures. Background Technology

[0002] Greenhouse gas emissions contribute to the greenhouse effect, causing global warming. Therefore, there is increasing emphasis on carbon emissions, with efforts aimed at minimizing them across various sectors. Asphalt mixtures are a common material in road construction, and they contribute to carbon emissions at every stage. These include raw material production (asphalt: petroleum refining generates significant CO2; aggregates: mining and processing aggregates consumes energy, indirectly generating carbon emissions), mixture production (heating: heating asphalt and aggregates to high temperatures consumes significant energy, primarily from fossil fuel combustion; mixing: mixing consumes electricity, indirectly generating carbon emissions), and construction (transportation: transporting the mixture to the construction site consumes fuel, generating CO2; paving and compaction: using machinery consumes fuel or electricity, indirectly generating carbon emissions). Furthermore, the amount of carbon emissions can vary at different times within each process. Existing testing equipment sometimes suffers from improper sampling procedures and requires considerable manual intervention. Utility Model Content

[0003] Purpose of this utility model: This application aims to overcome the deficiencies of the prior art and provide a multi-sampling tube gas sampling device for measuring carbon emissions from asphalt mixtures.

[0004] Technical Solution: A gas sampling device includes a control unit, a frame unit, a drive unit, and multiple sampling units. Each sampling unit includes a sampling tube, an inlet pipe connected to the sampling tube, a valve unit installed in the inlet pipe and controlled by the control unit, a piston section located inside the sampling tube, a first lead screw connected to the piston section, two guide rods connected to the piston section, a connecting plate connected to the two guide rods, and a driven wheel installed at the first lead screw. The driven wheel has a first threaded hole that mates with the first lead screw, and the connecting plate has a first through hole through which the first lead screw passes. The frame unit includes a first support plate, a second support plate, and a third support plate. Both the first and second support plates are passed through by all the sampling tubes and are connected to the first lead screw. All sampling tubes are fixedly connected; the third support plate has multiple guide holes through which guide rods pass and multiple second through holes through which first lead screws pass; multiple limiting brackets for limiting the passive wheel are fixedly connected to the third support plate; a slide rail and two end blocks are fixed to the top of the third support plate; a slide seat is installed on the slide rail; a first motor is installed on one of the two end blocks, and a bearing is installed on the other; a second lead screw is connected between the first motor and the bearing; the slide seat has a sliding groove that connects to the slide rail and a second threaded hole that mates with the second lead screw; a lifting seat is connected to the slide seat via an electric lifting rod; a second motor is installed on the lifting seat; and a driving wheel capable of abutting against the passive wheel is installed on the second motor.

[0005] Furthermore, the circumferential surface of the driving wheel has a plurality of first strip-shaped protrusions, and the circumferential surface of the driven wheel has a plurality of second strip-shaped protrusions.

[0006] This makes the engagement and driving of the driving and driven wheels more stable.

[0007] Furthermore, the first and second perforations do not contact the first lead screw.

[0008] Furthermore, the control unit is mounted at the rack unit.

[0009] Furthermore, the frame unit also includes a base plate and multiple support legs connected to the base plate, wherein the first support plate, the second support plate and the third support plate are all fixedly connected to the base plate.

[0010] Furthermore, the slide includes a first horizontal plate and a first vertical plate connected to the first horizontal plate, and the lifting seat includes a second horizontal plate and a second vertical plate connected to the second horizontal plate. The first vertical plate has a limiting groove, and the second vertical plate has a limiting rail that cooperates with the limiting groove. The second motor is installed on the second vertical plate.

[0011] Furthermore, each passive wheel corresponds to two limiting frames, each limiting frame including a limiting plate and two connecting blocks connecting the third support plate and the limiting plate.

[0012] Thus, the two limit frames, together with the third support plate, ensure that the passive wheel can only rotate and cannot move horizontally.

[0013] Furthermore, the passive wheel has an annular groove, and the limiting plate has an arc-shaped slider that cooperates with the annular groove.

[0014] Furthermore, the passive wheel abuts against the third support plate and is capable of rotating relative to the third support plate.

[0015] Therefore, the limit bracket can better limit the driven wheel and make the rotation of the driven wheel more stable.

[0016] In some embodiments, both sides of the passive wheel have annular grooves, and both the limiting plate and the third support plate have arc-shaped sliders that cooperate with the annular grooves.

[0017] This allows the passive wheel to achieve better positioning and more stable rotation.

[0018] Furthermore, the first motor, the second motor, the electric lifting rod, and multiple valve units are all controlled by the control unit.

[0019] Furthermore, the number of sampling tubes is greater than or equal to four, and they are arranged in a row with equal spacing.

[0020] Furthermore, the sampling tube includes an end plate and an annular cylindrical tube, the air inlet tube is connected to the end plate, and the outer circumferential surface of the annular cylindrical tube has a first groove and a second groove, the first groove having a first plane and the second groove having a second plane.

[0021] Therefore, when needed, carbon emissions can be measured using optical measuring devices by utilizing the first and second planes.

[0022] Beneficial effects: The sampling device of this application can use multiple sampling tubes to achieve sampling, thereby providing richer sampling results.

[0023] The sampling device of this application can achieve automated sampling and sequential sampling. Attached Figure Description

[0024] Figure 1 This is a first-person view diagram of the sampling device;

[0025] Figure 2 This is a magnified view of region A;

[0026] Figure 3 This is a schematic diagram of the sampling device from a second perspective.

[0027] Figure 4 This is a magnified view of region B.

[0028] Figure 5 This is a magnified view of region C. Detailed Implementation

[0029] Reference numerals: 1. Base plate; 1.1. First support plate; 1.2. Second support plate; 1.3. Third support plate; 1.4. Support leg; 1.5. End block; 1.6. Slide rail; 1.7. Second lead screw; 1.8. First horizontal plate; 1.9. First vertical plate; 1.10. First motor; 1.11. Second horizontal plate; 1.12. Second vertical plate; 1.13. Second motor; 1.14. Drive wheel;

[0030] 2.1 Sampling tube; 2.2 Air inlet pipe; 2.3 Valve unit; 2.4 First lead screw; 2.5 Guide rod; 2.6 Connecting plate; 2.7 Limiting frame; 2.8 Driven wheel; 2.9 First groove; 2.10 Second groove.

[0031] This application discloses a multi-sampling tube gas sampling device for measuring carbon emissions from asphalt mixtures, comprising a control unit, a frame unit, a drive unit, and multiple sampling units. Each sampling unit includes a sampling tube 2.1, an inlet pipe 2.2 connected to the sampling tube 2.1, a valve unit 2.3 installed in the inlet pipe 2.2 and controlled by the control unit, a piston portion located within the sampling tube 2.1, a first lead screw 2.4 connected to the piston portion, two guide rods 2.5 connected to the piston portion, a connecting plate 2.6 connected to the two guide rods 2.5, and a driven wheel 2.8 installed on the first lead screw 2.4. The driven wheel 2.8 has a first threaded hole that mates with the first lead screw 2.4, and the connecting plate 2.6 has a first through hole through which the first lead screw 2.4 passes. The frame unit includes a first support plate 1.1, a second support plate 1.2, and a third support plate 1.3, and the first support plate 1.1 and the second support plate 1.2 are also included. All sampling tubes 2.1 pass through and are fixedly connected to all sampling tubes 2.1; the third support plate 1.3 has multiple guide holes through which guide rods 2.5 pass and multiple second through holes through which first lead screws 2.4 pass; multiple limiting brackets 2.7 for limiting the passive wheel 2.8 are fixedly connected to the third support plate 1.3; a slide rail and two end blocks 1.5 are fixed to the top of the third support plate 1.3; a slide seat is installed at the slide rail 1.6; a first motor is installed on one of the two end blocks 1.5, and a bearing is installed on the other; a second lead screw 1.7 is connected between the first motor and the bearing; the slide seat has a sliding groove connected to the slide rail 1.6 and a second threaded hole that mates with the second lead screw; a lifting seat is connected to the slide seat via an electric lifting rod 1.10; a second motor 1.13 is installed at the lifting seat; and a driving wheel 1.14 capable of abutting against the passive wheel is installed on the second motor 1.13.

[0032] The frame unit further includes a base plate 1 and multiple support legs 1.4 connected to the base plate. A first support plate 1.1, a second support plate 1.2, and a third support plate 1.3 are all fixedly connected to the base plate 1. The slide includes a first horizontal plate 1.8 and a first vertical plate 1.9 connected to the first horizontal plate 1.8. The lifting seat includes a second horizontal plate 1.11 and a second vertical plate 1.12 connected to the second horizontal plate 1.11. The first vertical plate 1.9 has a limiting groove, and the second vertical plate 1.12 has a limiting rail that mates with the limiting groove. The second motor 1.13 is mounted on the second vertical plate 1.12. Each driven wheel 2.8 corresponds to two limiting frames 2.7. Each limiting frame 2.7 includes a limiting plate and two connecting blocks connecting the third support plate and the limiting plate. The number of sampling tubes 2.1 is greater than or equal to four, and they are distributed in a row at equal intervals. The sampling tube 2.1 includes an end plate and an annular cylindrical tube. The air inlet tube 2.2 is connected to the end plate. The outer circumferential surface of the annular cylindrical tube has a first groove 2.9 and a second groove 2.10. The first groove 2.9 has a first plane, and the second groove 2.10 has a second plane.

[0033] The sampling device of this application includes a drive unit that, driven by a first motor, drives the active wheel to translate, while the electric lifting rod enables the active and passive wheels to engage and disengage. This allows the drive mechanism to individually drive the passive wheels at each sampling tube, thereby rotating the first lead screw and driving the piston to translate (at which point the valve unit opens), increasing the internal space of the sampling tube and facilitating sampling. Furthermore, the drive unit can experimentally sample multiple sampling tubes sequentially, for example, by setting multiple time periods and using one sampling tube for each time period. This allows for the collection of samples from different time periods, facilitating subsequent carbon emission measurement using the gas from the sampling tubes. The gas from the sampling tubes can be discharged into a measuring device for carbon emission determination.

[0034] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims.

Claims

1. A multi-sampling tube gas sampling device for measuring carbon emissions from asphalt mixtures, characterized in that, The system includes a control unit, a frame unit, a drive unit, and multiple sampling units. Each sampling unit includes a sampling tube, an air inlet pipe connected to the sampling tube, a valve unit installed in the air inlet pipe and controlled by the control unit, a piston section located inside the sampling tube, a first lead screw connected to the piston section, two guide rods connected to the piston section, a connecting plate connected to the two guide rods, and a driven wheel installed at the first lead screw. The driven wheel has a first threaded hole that mates with the first lead screw, and the connecting plate has a first through hole through which the first lead screw passes. The frame unit includes a first support plate, a second support plate, and a third support plate. Both the first and second support plates are penetrated by all the sampling tubes and are fixed to all the sampling tubes. The third support plate has multiple guide holes through which guide rods pass and multiple second through holes through which first lead screws pass. Multiple limiting brackets for limiting the driven wheel are fixedly connected to the third support plate. A slide rail and two end blocks are fixed to the top of the third support plate. A slide block is installed on the slide rail. One of the two end blocks is equipped with a first motor, and the other with a bearing. A second lead screw connects the first motor and the bearing. The slide block has a groove that connects to the slide rail and a second threaded hole that mates with the second lead screw. A lifting seat is connected to the slide block via an electric lifting rod. A second motor is installed on the lifting seat, and a driving wheel capable of abutting against the driven wheel is mounted on the second motor.

2. The multi-sampling tube gas sampling device for measuring carbon emissions from asphalt mixtures according to claim 1, characterized in that, The frame unit also includes a base plate and multiple support legs connected to the base plate. The first support plate, the second support plate and the third support plate are all fixedly connected to the base plate.

3. The multi-sampling tube gas sampling device for measuring carbon emissions from asphalt mixtures according to claim 1, characterized in that, The slide includes a first horizontal plate and a first vertical plate connected to the first horizontal plate. The lifting seat includes a second horizontal plate and a second vertical plate connected to the second horizontal plate. The first vertical plate has a limiting groove, and the second vertical plate has a limiting rail that cooperates with the limiting groove. The second motor is installed on the second vertical plate.

4. The multi-sampling tube gas sampling device for measuring carbon emissions from asphalt mixtures according to claim 1, characterized in that, Each passive wheel corresponds to two limit frames, each of which includes a limit plate and two connecting blocks that connect the third support plate and the limit plate.

5. The multi-sampling tube gas sampling device for measuring carbon emissions from asphalt mixtures according to claim 1, characterized in that, The number of sampling tubes is greater than or equal to four, and they are arranged in a row with equal spacing.

6. The multi-sampling tube gas sampling device for measuring carbon emissions from asphalt mixtures according to claim 1, characterized in that, The sampling tube includes an end plate and an annular cylindrical tube. The air inlet tube is connected to the end plate. The outer circumferential surface of the annular cylindrical tube has a first groove and a second groove. The first groove has a first plane and the second groove has a second plane.

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