CN114166734A - Asphalt material intelligent accelerated aging environment test device based on LED ultraviolet lamp - Google Patents
Asphalt material intelligent accelerated aging environment test device based on LED ultraviolet lamp Download PDFInfo
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- CN114166734A CN114166734A CN202111349638.2A CN202111349638A CN114166734A CN 114166734 A CN114166734 A CN 114166734A CN 202111349638 A CN202111349638 A CN 202111349638A CN 114166734 A CN114166734 A CN 114166734A
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- control unit
- ultraviolet lamp
- box body
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- 230000032683 aging Effects 0.000 title claims abstract description 52
- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 239000010426 asphalt Substances 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000006698 induction Effects 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000004088 simulation Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract 1
- 238000013139 quantization Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
- 208000019155 Radiation injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/004—Investigating resistance of materials to the weather, to corrosion, or to light to light
Abstract
The invention provides an intelligent accelerated aging test device for asphalt materials based on an LED ultraviolet lamp, which comprises: the test box body, intelligent control unit, carry thing unit, temperature control unit, humidity control unit, ultraviolet irradiation unit, quality induction system, intelligent control unit's output is connected with local terminal equipment and personal terminal equipment through information transmission module, and accurate high-efficient simulation natural environment is used for accelerating the quantization of pitch class materials such as ageing pitch and bituminous mixture and realization ageing degree. On the basis of considering experimental safety and ageing efficiency and precision with higher speed, it can realize experimental condition and natural environment's simulation, satisfies simultaneously ageing test box's control, operating condition look over and the function that real-time recording test sample changed, the device convenient operation, ageing efficiency is high, and measurement accuracy is accurate, and operational environment is safe.
Description
Technical Field
The invention belongs to the technical field of asphalt performance testing devices, and particularly relates to an intelligent accelerated aging environment testing device for asphalt materials based on an LED ultraviolet lamp.
Background
The asphalt pavement material is exposed in a natural environment and is aged after being subjected to the action of external environmental factors such as illumination, cold and hot alternation, freeze-thaw cycle and the like all year round. The aging of asphalt materials can cause a series of volatilization, oxidation, polymerization and even change of the internal structure of asphalt, so that the performance of the pavement is deteriorated and the service life is shortened.
The durability and service life of asphalt materials are researched, and natural aging and artificial accelerated aging methods are generally adopted. The factors mainly considered for the artificial accelerated aging include sunlight ultraviolet radiation, temperature aging, loading aging and the like, and the widely adopted aging test device comprises: the device comprises an asphalt film aging test chamber, a rotary asphalt film aging test chamber, a pressure aging test chamber and an ultraviolet aging test chamber. The aging test for asphalt materials mainly has the following problems:
1. the temperature, the humidity and the irradiation intensity of the test box body environment are uneven, so that the aging degree of the sample is uneven.
The temperature, humidity and ultraviolet radiation intensity control element and the measuring element have measurement delay, so that the temperature, humidity and radiation intensity in the environmental chamber are not uniform. The ultraviolet aging degree is obviously influenced by distance and temperature, but the test piece close to the heating element and the ultraviolet lamp is more easily aged due to the relatively fixed position of the test piece.
2. The irradiation intensity of the ultraviolet lamp is not uniformly distributed in space, and the lamp box is inconvenient to replace.
The indoor asphalt ultraviolet light aging light source mostly adopts an annular ultraviolet light source or a banded ultraviolet light source, and the ultraviolet light intensity is gradually reduced from the center of the light source to the edge, so that the ultraviolet light is unevenly distributed and the utilization rate is low.
The ultraviolet lamp belongs to the consumable items and has high replacement frequency, and most ultraviolet lamps of the aging test box are fixed at the top of the aging test box, so that inconvenience is brought to the replacement of the lamp box.
3. The working environment and the sample state of the aging test chamber lack real-time monitoring and recording.
The aging test box considers setting and monitoring of aging environment parameters less, the ultraviolet lamp has the phenomenon of strength attenuation after being used for a long time, the common aging test box is difficult to realize accurate quantification of the aging degree of asphalt materials under the state of unstable temperature, humidity and ultraviolet intensity, and influence factors of asphalt material aging cannot be known comprehensively.
4. Poor safety: the ultraviolet radiation injury problem is not considered, and the ultraviolet aging test box has long power supply time and generates heat, thereby not only influencing the ultraviolet aging effect, but also having poor simulation test effect and easily causing safety problems. .
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an intelligent accelerated aging environment test device for asphalt materials based on an LED ultraviolet lamp.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
an intelligent accelerated aging environment test device for asphalt materials based on an LED ultraviolet lamp comprises a box body (1), wherein a carrying unit, a temperature control unit, an ultraviolet irradiation unit, a humidity control unit and a quality induction system are arranged in the box body (1);
a pair of sliding chutes (2) are arranged at the tops of the left side wall and the right side wall of the box body (1); the front surface of the box body (1) is provided with a box door (3), the box body (1) is provided with an intelligent control unit (23), and the back surface of the box body is provided with a vent hole (4);
the loading unit is a lifting type loading platform for loading a sample, the loading platform comprises a lifting shaft (6) and a loading platform (5) connected with the upper part of the lifting shaft (6), and a tray (7) is arranged on the loading platform (5);
the temperature control unit comprises a plurality of infrared heating pipes (8), a plurality of semiconductor refrigerating sheets (9) and a temperature sensor (10), the heating pipes (8) and the refrigerating sheets (9) are respectively arranged on the inner side wall surface of the box body (1), and the temperature sensor (10) is arranged on the carrying unit;
the ultraviolet irradiation system comprises an LED ultraviolet lamp box (11) and an ultraviolet irradiator (12), a rectangular sliding plate arranged on the LED ultraviolet lamp box (11) is spanned in the pair of sliding grooves (2), and a probe of the ultraviolet irradiator (12) is arranged on the carrying unit;
the humidity control system comprises a humidifier (13) and a water vapor ventilation port (16) which are positioned on the outer side of the right wall of the box body, and a humidity sensor (14) arranged on the carrying unit;
the mass sensing system comprises a load cell (15) disposed at the bottom of the tray (7);
the intelligent control unit (23) is a PLC (programmable logic controller), the input end of the PLC is respectively electrically connected with the loading unit, the temperature control unit, the ultraviolet irradiation unit, the humidity control unit and the quality sensing unit, and the output end of the PLC is connected with the local terminal equipment and the personal terminal equipment through the information transmission module.
In the scheme, the temperature sensor (10), the ultraviolet radiation meter (12) and the humidity sensor (14) are arranged in the end surface of the lifting shaft (6), and the end surface of the lifting shaft (6) and the surface of the objective table (5) are positioned on the same horizontal plane.
In the scheme, the sliding grooves (2) can be arranged in a plurality of pairs in the vertical direction.
In the scheme, the box door (3) is linked with the LED ultraviolet lamp box (11) through the intelligent control unit (23).
In the above scheme, the local terminal device is an industrial touch screen, and the personal terminal device is a mobile phone.
In the above scheme, the information transmission module is a 5G information transmission module or a WIFI information transmission module.
In conclusion, the invention has the following beneficial effects:
1. the simulation degree is high: the temperature, the humidity and the ultraviolet intensity of the environment where the test piece is located can be really and effectively controlled through the arrangement of the infrared heating pipe, the semiconductor refrigerating sheet, the temperature sensor, the rotating shaft of the carrying unit and the PLC, the accurate quantification of the aging degree of the asphalt materials is realized through the real-time measurement of the ultraviolet radiation intensity, the temperature and the humidity, and the influence factors of the aging of the asphalt materials are comprehensively known, so that the optimization of the asphalt materials is more accurately guided;
2. the test box top is detachable construction, specifically is: the top of the left side wall and the right side wall of the box body are provided with a plurality of pairs of sliding grooves, the rectangular sliding plate arranged on the LED ultraviolet lamp box is arranged on the pair of sliding grooves in a spanning mode, the ultraviolet lamp box is adopted to replace the top plate in the structure, the difficulty of replacing the ultraviolet lamp box can be effectively reduced, materials are saved, and the production cost is reduced. Meanwhile, the end face of the lifting shaft and the surface of the objective table are positioned on the same horizontal plane, and the rotation and vertical height of the lifting shaft are adjusted through a PLC (programmable logic controller), so that the experimental environments of the test samples at all positions are relatively consistent, and the problem of uneven distribution of temperature, humidity, irradiation intensity and ultraviolet intensity of the environment of the test piece is effectively solved;
3. the output end of the PLC is connected with the local terminal industrial touch screen and the personal terminal mobile phone, so that the local and remote monitoring and recording at any time are realized, the influence of the attenuation of the irradiation intensity of the ultraviolet lamp on an aging test is effectively prevented, the opening or closing of the aging test box is remotely controlled, the working condition of the test box is checked, the problem that people are injured by ultraviolet radiation is effectively solved, meanwhile, the temperature of the test box can be remotely monitored, and the safety of a working environment is guaranteed;
4. whole device integrates the degree height, has carried out the cooperation with various control factor simultaneously, and is more intelligent, convenient operation, and ageing efficiency is high, and measurement accuracy is accurate.
Drawings
FIG. 1 is a schematic diagram of an overall external structure of an intelligent aging box body in an embodiment;
FIG. 2 is a schematic diagram (1) of the internal structure of the intelligent aging box body in the embodiment;
FIG. 3 is a schematic diagram (2) of the internal structure of the intelligent aging box body in the embodiment;
FIG. 4 is a schematic structural view of the stage and the end face of the lifting shaft;
FIG. 5 is a block diagram of an intelligent control system for embodying an intelligent burn-in box in the embodiment.
Wherein: 1-a box body; 2-a chute; 3-a box door; 4-vent hole, 5-objective table; 6-lifting shaft; 7-a tray; 8-infrared heating pipe; 9-semiconductor refrigerating sheet; 10-a temperature sensor; 11-LED ultraviolet lamp box; 12-ultraviolet radiation meter; 13-a humidifier; 14-a humidity sensor; 15-a weighing sensor; 16-a water vapor vent; 23-intelligent control unit.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 5, the intelligent accelerated aging environment test device for asphalt materials based on the LED ultraviolet lamp of the present invention comprises: the device comprises a box body 1, wherein a carrying unit, a temperature control unit, an ultraviolet irradiation unit, a humidity control unit and a quality induction system are arranged in the box body 1;
referring to fig. 1, 2 and 3, a pair of sliding chutes 2 are arranged at the top of the left side wall and the right side wall of the box body 1, and a plurality of pairs of sliding chutes (2) can be arranged in the vertical direction; the front surface of the box body 1 is provided with a box door 3, the box body (1) is provided with an intelligent control unit 23, and the back surface of the box body 1 is provided with a vent hole 4;
the carrying unit is a lifting carrying platform for carrying samples, the carrying platform comprises a lifting shaft 6 and a carrying platform 5 connected with the upper part of the lifting shaft 6, a tray 7 is arranged on the carrying platform 5, the structure of the lifting shaft 6 can be a stepless rotary adjusting mechanism, and the experimental environments of the test samples at all positions are relatively consistent along with the rotation of the lifting shaft 6 and the adjustment of the vertical height;
the temperature control unit comprises a plurality of infrared heating pipes 8, a plurality of semiconductor refrigerating sheets 9 and a temperature sensor 10, the heating pipes 8 and the refrigerating sheets 9 are respectively arranged on the inner side wall surface of the box body 1, and the temperature sensor 10 is arranged on the carrying unit;
the ultraviolet irradiation system comprises an LED ultraviolet lamp box 11 and an ultraviolet irradiator 12, a rectangular sliding plate arranged on the LED ultraviolet lamp box 11 is arranged in a pair of sliding grooves 2 in a spanning mode, the LED ultraviolet lamp box 11 is linked with a box door 3 through a PLC (programmable logic controller) 23, once the box door 3 is opened, the LED ultraviolet lamp box 11 is automatically switched off and designed to prevent experimenters from being irradiated by ultraviolet rays, a probe of the ultraviolet irradiator 12 is arranged on the disk surface of a lifting shaft 6, a plurality of pairs of sliding grooves 2 can be arranged, the ultraviolet lamp box 11 can be adjusted in the vertical direction, and a point light source of the LED ultraviolet lamp box enables the ultraviolet intensity distribution on a measurement sample to be more uniform;
the humidity control system comprises a humidifier 13 positioned at the bottom of the box body and a humidity sensor 14 arranged on the carrying unit;
the mass sensing system comprises a load cell 15 placed at the bottom of the tray 7;
referring to fig. 4, the temperature sensor 10, the ultraviolet irradiator 12 and the humidity sensor 14 are disposed in the end surface of the lifting shaft 6, and the end surface of the lifting shaft 6 and the surface of the object stage 5 are located on the same horizontal plane, so as to ensure the accuracy of the data of the test sample and solve the problem of measurement delay of the test sample.
The PLC is respectively connected with a temperature sensor 10, an ultraviolet irradiator 12, a humidity sensor 14 and a weighing sensor 15.
The intelligent control unit 23 is a PLC programming controller, the input end of the PLC programming controller is respectively connected with the loading unit, the temperature control unit, the ultraviolet irradiation unit, the humidity control unit and the quality sensing unit, the output end of the PLC programming controller is connected with the local terminal equipment and the personal terminal equipment through the information transmission module, the local terminal equipment can be an industrial touch screen, the personal terminal equipment can be a mobile phone, and the information transmission module can be a 5G information transmission module or a WIFI information transmission module.
The working process of the invention is as follows:
setting a program in a PLC (programmable logic controller), linking a box door with an LED ultraviolet lamp box through the PLC, opening the box door, automatically disconnecting the LED ultraviolet lamp box, placing a measurement sample on a tray, and closing the box door;
the temperature, the humidity and the ultraviolet irradiation intensity of the aging test box are changed by adjusting the infrared heating tube, the semiconductor refrigerating sheet, the LED ultraviolet lamp box, the ultraviolet irradiator and the humidifier through the PLC;
furthermore, the lifting shaft is adjusted through the PLC, the structure of the lifting shaft can be a stepless rotary adjusting mechanism, and the experimental environments of the test samples at all positions are relatively consistent along with the rotation of the lifting shaft and the adjustment of the vertical height;
acquiring the temperature, the humidity and the ultraviolet irradiation intensity in the box body in real time through an ultraviolet irradiation meter probe, a temperature sensor and a humidity sensor in the lifting shaft;
the real-time change of the mass of the test sample can be obtained through the weighing sensor in the tray;
the intelligent control unit is a PLC programming controller, a PLC editing controller and a temperature sensor, a humidity sensor weighing sensor, an ultraviolet irradiator reading unit and a connecting unit, and records test data, the PLC editing controller transmits a 5G information transmission module or a WIFI information transmission module, the working environment of the aging test box and the real-time data of the sample state are transmitted to a local terminal and a personal terminal, and the remote real-time monitoring and the checking of the working state of the aging test box are realized.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An intelligent accelerated aging environment test device for asphalt materials based on an LED ultraviolet lamp comprises a box body (1), and is characterized in that a carrying unit, a temperature control unit, an ultraviolet irradiation unit, a humidity control unit and a quality induction system are arranged in the box body (1);
a pair of sliding chutes (2) are arranged at the tops of the left side wall and the right side wall of the box body (1); the front surface of the box body (1) is provided with a box door (3), the box body (1) is provided with an intelligent control unit (23), and the back surface of the box body is provided with a vent hole (4);
the loading unit is a lifting type loading platform for loading a sample, the loading platform comprises a lifting shaft (6) and a loading platform (5) connected with the upper part of the lifting shaft (6), and a tray (7) is arranged on the loading platform (5);
the temperature control unit comprises a plurality of infrared heating pipes (8), a plurality of semiconductor refrigerating sheets (9) and a temperature sensor (10), the heating pipes (8) and the refrigerating sheets (9) are respectively arranged on the inner side wall surface of the box body (1), and the temperature sensor (10) is arranged on the carrying unit;
the ultraviolet irradiation system comprises an LED ultraviolet lamp box (11) and an ultraviolet irradiator (12), a rectangular sliding plate arranged on the LED ultraviolet lamp box (11) is spanned in the pair of sliding grooves (2), and a probe of the ultraviolet irradiator (12) is arranged on the carrying unit;
the humidity control system comprises a humidifier (13) and a water vapor ventilation port (16) which are positioned on the outer side of the right wall of the box body, and a humidity sensor (14) arranged on the carrying unit;
the mass sensing system comprises a load cell (15) disposed at the bottom of the tray (7);
the intelligent control unit (23) is a PLC (programmable logic controller), the input end of the PLC is respectively electrically connected with the loading unit, the temperature control unit, the ultraviolet irradiation unit, the humidity control unit and the quality sensing unit, and the output end of the PLC is connected with the local terminal equipment and the personal terminal equipment through the information transmission module.
2. The intelligent accelerated aging environment test device for asphalt materials based on the LED ultraviolet lamp according to claim 1, characterized in that the temperature sensor (10), the ultraviolet irradiator (12) and the humidity sensor (14) are arranged in the end face of the lifting shaft (6), and the end face of the lifting shaft (6) and the surface of the object stage (5) are located on the same horizontal plane.
3. The intelligent accelerated aging environment test device for asphalt materials based on the LED ultraviolet lamps as claimed in claim 2, wherein the sliding chutes (2) can be arranged in a plurality of pairs in the vertical direction.
4. The intelligent accelerated aging environment test device for asphalt materials based on the LED ultraviolet lamp as claimed in claim 3, wherein the box door (3) is linked with the LED ultraviolet lamp box (11) through an intelligent control unit (23).
5. The intelligent accelerated aging environment test device for asphalt materials based on the LED ultraviolet lamp as claimed in claim 4, wherein the local terminal device is an industrial touch screen, and the personal terminal device is a mobile phone.
6. The intelligent accelerated aging environment test device for asphalt materials based on the LED ultraviolet lamp of claim 5, wherein the information transmission module is a 5G information transmission module or a WIFI information transmission module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349638.2A CN114166734A (en) | 2021-11-15 | 2021-11-15 | Asphalt material intelligent accelerated aging environment test device based on LED ultraviolet lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349638.2A CN114166734A (en) | 2021-11-15 | 2021-11-15 | Asphalt material intelligent accelerated aging environment test device based on LED ultraviolet lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114166734A true CN114166734A (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111349638.2A Pending CN114166734A (en) | 2021-11-15 | 2021-11-15 | Asphalt material intelligent accelerated aging environment test device based on LED ultraviolet lamp |
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| CN (1) | CN114166734A (en) |
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2021
- 2021-11-15 CN CN202111349638.2A patent/CN114166734A/en active Pending
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