CN101915784A - Indoor photothermal effect test system and test method for road materials - Google Patents
Indoor photothermal effect test system and test method for road materials Download PDFInfo
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- CN101915784A CN101915784A CN 201010281908 CN201010281908A CN101915784A CN 101915784 A CN101915784 A CN 101915784A CN 201010281908 CN201010281908 CN 201010281908 CN 201010281908 A CN201010281908 A CN 201010281908A CN 101915784 A CN101915784 A CN 101915784A
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Abstract
The invention discloses an indoor photothermal effect test system and test method for road materials, belonging to the technical field of material test. The invention solves the problems that the acquiring mode of the photothermal response situation of various road materials at present is restricted by natural condition and the efficiency is low. A test material experiment table and a comparison material experiment table are fixed on the base of the device of the invention. A lamp holder is fixed on the base and is provided with two sets of illumination devices; illumination with same condition is respectively provided for the test material experiment table and the comparison material experiment table by one set of the illumination devices; a temperature acquisition device is used for simultaneously detecting the temperature value of a test material and a comparison material; and two radiometers are respectively used for collecting illumination radiation intensity of road materials on the two experiment tables. In the method of the invention, firstly, road materials are laid; then, the illumination device is adjusted to ensure that the illumination radiation intensity obtained on two road materials is same and to continuously irradiate for 7 hours; meanwhile, the temperature of the road materials is collected; and finally, data is output. The invention is used for the photothermal effect test of road materials.
Description
Technical field
The present invention relates to a kind of road with room light thermal effect pilot system and test method, belong to the material test technical field.
Background technology
Present stage obtains the photothermal response situation of various ground surface materials under solar radiation, takes to bury the mode of sensor again underground and carry out on outdoor making test road more.This mode is restricted by the weather of nature and geographical situation, need implement at fine day owing to test, as run into the thick weather of long period, will influence test efficiency; Because the weather and the geographical situation repdocutbility of nature are poor, therefore the comparative of the data of obtaining is just poor; Diurnal cycle of this in addition experiment needs 24 hours, if finish a research cycle, not only takes longlyer, will set up data acquisition outdoor simultaneously, and all there is inconvenience in the maintenance and the debugging of equipment.
Summary of the invention
The objective of the invention is restricted by natural situation in order to solve present stage to the obtain manner of various ground surface material photothermal response situations, the problem of inefficiency provides a kind of road with room light thermal effect pilot system and test method.
Road of the present invention comprises base, test material experiment table, control material experiment table, temperature collecting device, lamp bracket, two cover illumination apparatus and two radiometers with room light thermal effect pilot system,
Fixation test material experiment platform and control material experiment table on the upper surface of base, lamp bracket is fixed on the base, two cover illumination apparatus distribute on the lamp bracket, test material experiment table and control material experiment table provide the illumination of the same terms by a cover illumination apparatus for it respectively, and temperature collecting device is used for detecting simultaneously the temperature value of test material and control material;
Two radiometers are used for the ground surface material on the acquisition test material experiment platform and the light radiation intensity of the ground surface material on the control material experiment table respectively.
Road based on said apparatus of the present invention may further comprise the steps with room light thermal effect test method:
Step 1: on the test material experiment table, lay ground surface material to be measured; On the control material experiment table, lay the contrast ground surface material;
Step 2: the whole height of adjusting lamp bracket, make two cover illumination apparatus be in horizontality, and adjust two the cover illumination apparatus the elevation angle, make the two cover light that illumination apparatus sent difference uniform irradiations on test material experiment table and control material experiment table, adjust the light intensity that every cover illumination apparatus is sent simultaneously, make light radiation intensity identical by ground surface material obtained on two two experiment tablees that radiometer collected;
Step 3: make the irradiation time of illumination apparatus continue seven hours;
By temperature collecting device the temperature of ground surface material on two experiment tablees is gathered constantly simultaneously;
Step 4: after illumination finishes, the temperature data that temperature collecting device obtains is exported to computing machine, analyze the photo-thermal effect data that obtain ground surface material.
Advantage of the present invention is: the present invention has realized the outdoor simulation of accepting the solar radiation situation at indoor road pavement material, made things convenient for evaluation to the photo-thermal effect response condition of various ground surface materials, because indoor conditions is not subjected to the restriction of extraneous natural situation, key parameter can be subjected to artificially to control easily, make conventional efficient improve greatly, and the repdocutbility and the controllability of experiment simultaneously are good.
Experiment showed, and use pilot system road pavement material of the present invention to measure, only needed seven hours just can make ground surface material to be measured reach thermal equilibrium state, shortened the research cycle of road pavement material photo-thermal effect greatly;
Compare with outdoor making test road, the present invention only need be placed on the testing table at every kind of ground surface material making test specimen and get final product, and is simple to operate.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the enforcement principle schematic of system of the present invention;
Fig. 5 is the structural representation of nine well-distributed pointses on test material or the control material.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 to Fig. 4, the described road of present embodiment comprises base 1, test material experiment table 2, control material experiment table 3, temperature collecting device 4, lamp bracket 5, two cover illumination apparatus 6 and two radiometers with room light thermal effect pilot system
Fixation test material experiment platform 2 and control material experiment table 3 on the upper surface of base 1, lamp bracket 5 is fixed on the base 1, two cover illumination apparatus 6 distribute on the lamp bracket 5, test material experiment table 2 and control material experiment table 3 provide the illumination of the same terms by a cover illumination apparatus 6 for it respectively, and temperature collecting device 4 is used for detecting simultaneously the temperature value of test material and control material;
Two radiometers are used for the ground surface material on the acquisition test material experiment platform 2 and the light radiation intensity of the ground surface material on the control material experiment table 3 respectively.
Embodiment two: present embodiment is described below in conjunction with Fig. 1 to Fig. 3, the difference of present embodiment and embodiment one is that it also comprises two heat insulation covers 7 of going along with sb. to guard him, heat insulation cover 7 of going along with sb. to guard him of the outer cover of described test material experiment table 2 makes test material experiment table 2 only have upper surface to be exposed to the outside; Heat insulation cover 7 of going along with sb. to guard him of the outer cover of control material experiment table 3 makes control material experiment table 3 only have upper surface to be exposed to the outside.Other composition and annexation are identical with embodiment one.
On the outside surface of two experiment tablees, put the heat insulation cover 7 of going along with sb. to guard him respectively, be in order to prevent that its temperature field is subjected to the interference of extraneous other factors, and prevent heat around testing table and the bottom surface lost, and test findings is exerted an influence, the heat insulation materials such as can filling insulation fibre in the cover 7 of going along with sb. to guard him helps improving the provision for thermal insulation to test specimen.
Embodiment three: present embodiment is the further qualification to embodiment two, and described temperature collecting device 4 is made up of first temperature sensor, second temperature sensor and data acquisition unit,
First temperature sensor is used to detect the temperature of the ground surface material on the test material experiment table 2, and the temperature signal output terminal of first temperature sensor connects the test material temperature signal input end of data acquisition unit;
Second temperature sensor is used to detect the temperature of the ground surface material on the control material experiment table 3, and the temperature signal output terminal of second temperature sensor connects the control material temperature signal input end of data acquisition unit.
Temperature sensor can be installed in the surperficial or inner of ground surface material to be measured, be used for accurately measuring the temperature of ground surface material, its output terminal is used for the temperature data that collects is exported to data acquisition unit, data acquisition unit can output to the data that collect on the computer again, can carry out the automatic acquisition and recording of temperature data for analysis by special software.
Embodiment four: below in conjunction with Fig. 1 to Fig. 3 present embodiment is described, present embodiment is the further qualification to embodiment three, and described lamp bracket 5 is made up of five root post 5-1, suspension bracket 5-2, eight fine setting suspension rod 5-3 and eight fixed derrick 5-4,
Every root post 5-1 all and between the base 1 fixes by welding, the outside surface of five root post 5-1 is helicitic texture, a height adjusting screw 5-11 is arranged on every root post 5-1, described height adjusting screw 5-11 is threaded with column 5-1, suspension bracket 5-2 is positioned on the five root post 5-1, and is held up by the height adjusting screw 5-11 on every root post 5-1; Described suspension bracket 5-2 is a rectangle structure, and five root post 5-1 lay respectively at the position of four summits of suspension bracket 5-2 and central point;
Every cover illumination apparatus 6 is formed by four iodine-tungsten lamp 6-1, each iodine-tungsten lamp 6-1 hangs on suspension bracket 5-2 by a fine setting suspension rod 5-3 and a fixed derrick 5-4, four iodine-tungsten lamp 6-1 in every cover illumination apparatus 6 provide the experiment table of illumination evenly to distribute with respect to it, to form the illumination of the same terms.
Embodiment five: below in conjunction with Fig. 5 present embodiment is described, present embodiment is the further qualification to embodiment four, and a described radiometer is used for the light radiation intensity at nine intensity collection point places in acquisition test material experiment platform 2 upper surfaces; Described nine intensity collection points evenly distribute; Another radiometer is used to gather the light radiation intensity at nine intensity collection point places in control material experiment table 3 upper surfaces, and described nine intensity collection points evenly distribute.
Embodiment six: below in conjunction with Fig. 4 present embodiment is described, present embodiment and embodiment one, two, three, four or fives' difference is that it also comprises stabilized voltage supply,
Stabilized voltage supply is used for to illumination apparatus 6 power supplies.Other composition and annexation are identical with embodiment one, two, three, four or five.
Adopt stabilized voltage supply to be used for, can guarantee that supply voltage is stable and then it is stable to make iodine-tungsten lamp 6-1 can keep light intensity to the power supply of each iodine-tungsten lamp 6-1 in the illumination apparatus 6.
Of the present invention widely applicable, the stabilized voltage supply of retention system and illumination apparatus 6 two parts are changed the response condition that data acquisition equipment or other equipment can obtain ground surface material other physical states under solar radiation.
Device of the present invention is not limited to above-mentioned embodiment, can also be the reasonable combination of technical characterictic described in the respective embodiments described above.
Embodiment seven: present embodiment is based on a kind of road room light thermal effect test method of embodiment one described device, and it may further comprise the steps:
Step 1: on test material experiment table 2, lay ground surface material to be measured; On control material experiment table 3, lay the contrast ground surface material;
Step 2: the whole height of adjusting lamp bracket 5, make two cover illumination apparatus 6 be in horizontality, and adjust two the cover illumination apparatus 6 the elevation angle, the light that two cover illumination apparatus 6 are sent is distinguished uniform irradiation on test material experiment table 2 and control material experiment table 3, adjust the light intensity that every cover illumination apparatus 6 is sent simultaneously, make light radiation intensity identical by ground surface material obtained on two two experiment tablees that radiometer collected;
Step 3: make the irradiation time of illumination apparatus 6 continue seven hours;
Gather constantly by the temperature of ground surface material on 4 pairs of two experiment tablees of temperature collecting device simultaneously;
Step 4: after illumination finishes, the temperature data that temperature collecting device 4 obtains is exported to computing machine, analyze the photo-thermal effect data that obtain ground surface material.
Definite method of light application time, intensity and uniformity coefficient:
The radiation of light source intensity of illumination apparatus 6 is steady state values among the present invention, and the setting value in the step 2 of the present invention is elected outdoor bituminous pavement as under solar radiation, the light radiation intensity level that at 14 o'clock in afternoon, ground reached.Because intensity of solar radiation is a varies with cosine, need the total radiation that integration obtains the sun is carried out in its variation, through experimental verification, adopt road pavement material of the present invention to carry out the photo-thermal effect test, under the irradiation of this fixed light source radiation intensity, only need about seven hours time just can reach the total radiation of the sun that outdoor environment diel ground obtained, and reach thermal equilibrium state.
In order to make laboratory test results and outdoor actual result that good correlativity be arranged, the present invention is when implementing, need to adopt the method for equivalent radiation heat principle, promptly when the indoor accumulation heat that illumination apparatus 6 throws under constant radiation intensity, with outdoor bituminous pavement when solar radiation is issued to thermal equilibrium, when the accumulation heat that sunshine projects the road surface equated, the temperature value that this moment, shop experiment obtained can be approximately outdoor thermal equilibrium temperature.
Embodiment eight: present embodiment is the further qualification to embodiment one, make light radiation intensity identical described in the step 2 by ground surface material obtained on two two experiment tablees that radiometer collected, be meant by two radiometers the light radiation intensity that ground surface material obtained on two testing tables gathered, make the light radiation intensity at nine equally distributed intensity collection point places on the described ground surface material satisfy following condition:
Formula one:
Formula two:
In the formula:
Mean radiation intensity on the-expression i experiment table, unit is W/m
2The i value is 1,2, represents test material experiment table 2 and control material experiment table 3 respectively;
W
Ij-The radiation intensity of expression i experiment table j position, unit is W/m
2The j value is 1,2 ..., 9, represent 9 intensity collection points on each experiment table respectively;
Formula three:
The i value is 1 in this formula.
The inventive method in use, the intensity of illumination of its test material and control material and uniformity coefficient all adopt radiometer to measure, and will realize by the height and the elevation angle of regulating illumination apparatus 6 control of intensity of illumination and uniformity coefficient.Each parameter that two experiment tablees are subjected to optical radiation in theory in the inventive method should be duplicate, but under actual conditions, is difficult to accomplish.Measure the light radiation intensity of equally distributed 9 positions on each experiment table respectively with radiometer, if measurement result does not satisfy the condition of formula one to formula three, just need readjust the directivity angle of illumination apparatus 6 and the position between each light source, when satisfying above-mentioned requirements, stop.
The present invention measures by the parameter on the road pavement, and control makes it satisfy formula one to formula three, makes well better parallel relatively of data tool that two experiment tablees record.Wherein formula one is used for controlling the uniformity of radiation of single experiment table; Formula two and formula three are in order to control the collimation of radiation uniformity coefficient between two experiment tablees.
Claims (8)
1. a road is characterized in that with room light thermal effect pilot system:
It comprises base (1), test material experiment table (2), control material experiment table (3), temperature collecting device (4), lamp bracket (5), two cover illumination apparatus (6) and two radiometers,
Fixation test material experiment platform (2) and control material experiment table (3) on the upper surface of base (1), lamp bracket (5) is fixed on the base (1), lamp bracket (5) is gone up the two cover illumination apparatus (6) that distribute, test material experiment table (2) and control material experiment table (3) provide the illumination of the same terms by a cover illumination apparatus (6) for it respectively, and temperature collecting device (4) is used for detecting simultaneously the temperature value of test material and control material;
Two radiometers are used for the ground surface material on the acquisition test material experiment platform (2) and the light radiation intensity of the ground surface material on the control material experiment table (3) respectively.
2. road according to claim 1 room light thermal effect pilot system is characterized in that:
It also comprises two heat insulation covers (7) of going along with sb. to guard him, and heat insulation cover (7) of going along with sb. to guard him of the outer cover of described test material experiment table (2) makes test material experiment table (2) only have upper surface to be exposed to the outside; Heat insulation cover (7) of going along with sb. to guard him of the outer cover of control material experiment table (3) makes control material experiment table (3) only have upper surface to be exposed to the outside.
3. road according to claim 2 room light thermal effect pilot system is characterized in that:
Described temperature collecting device (4) is made up of first temperature sensor, second temperature sensor and data acquisition unit,
First temperature sensor is used to detect the temperature of the ground surface material on the test material experiment table (2), and the temperature signal output terminal of first temperature sensor connects the test material temperature signal input end of data acquisition unit;
Second temperature sensor is used to detect the temperature of the ground surface material on the control material experiment table (3), and the temperature signal output terminal of second temperature sensor connects the control material temperature signal input end of data acquisition unit.
4. road according to claim 3 room light thermal effect pilot system is characterized in that:
Described lamp bracket (5) is made up of five root posts (5-1), suspension bracket (5-2), eight fine setting suspension rods (5-3) and eight fixed derricks (5-4),
Every root post (5-1) all and between the base (1) is fixed by welding, the outside surface of five root posts (5-1) is helicitic texture, a height adjusting screw (5-11) is arranged on every root post (5-1), described height adjusting screw (5-11) is threaded with column (5-1), suspension bracket (5-2) is positioned on five root posts (5-1), and is held up by the height adjusting screw (5-11) on every root post (5-1); Described suspension bracket (5-2) is a rectangle structure, and five root posts (5-1) lay respectively at the position of four summits of suspension bracket (5-2) and central point;
Every cover illumination apparatus (6) is formed by four iodine-tungsten lamps (6-1), each iodine-tungsten lamp (6-1) is hung on suspension bracket (5-2) by a fine setting suspension rod (5-3) and a fixed derrick (5-4), four iodine-tungsten lamps (6-1) in every cover illumination apparatus (6) provide the experiment table of illumination evenly to distribute with respect to it, to form the illumination of the same terms.
5. road according to claim 4 room light thermal effect pilot system is characterized in that:
A described radiometer is used for the light radiation intensity at nine intensity collection point places in acquisition test material experiment platform (2) upper surface; Described nine intensity collection points evenly distribute; Another radiometer is used to gather the light radiation intensity at nine intensity collection point places in control material experiment table (3) upper surface, and described nine intensity collection points evenly distribute.
6. according to claim 1,2,3,4 or 5 described roads room light thermal effect pilot system, it is characterized in that: it also comprises stabilized voltage supply,
Stabilized voltage supply is used for powering to illumination apparatus (6).
One kind based on the described road of claim 1 with the road of room light thermal effect pilot system with room light thermal effect test method, it is characterized in that: it may further comprise the steps:
Step 1: go up laying ground surface material to be measured at test material experiment table (2); Go up laying contrast ground surface material at control material experiment table (3);
Step 2: the whole height of adjusting lamp bracket (5), make two cover illumination apparatus (6) be in horizontality, and adjust two the cover illumination apparatus (6) the elevation angle, the light that two cover illumination apparatus (6) are sent is distinguished uniform irradiation on test material experiment table (2) and control material experiment table (3), adjust the light intensity that every cover illumination apparatus (6) is sent simultaneously, make light radiation intensity identical by ground surface material obtained on two two experiment tablees that radiometer collected;
Step 3: make the irradiation time of illumination apparatus (6) continue seven hours;
By temperature collecting device (4) temperature of ground surface material on two experiment tablees is gathered constantly simultaneously;
Step 4: after illumination finishes, the temperature data that temperature collecting device (4) obtains is exported to computing machine, analyze the photo-thermal effect data that obtain ground surface material.
8. road according to claim 7 room light thermal effect test method, it is characterized in that: make light radiation intensity identical described in the step 2 by ground surface material obtained on two two experiment tablees that radiometer collected, be meant by two radiometers the light radiation intensity that ground surface material obtained on two testing tables gathered, make the light radiation intensity at nine equally distributed intensity collection point places on the described ground surface material satisfy following condition:
Formula one:
Formula two:
In the formula:
Mean radiation intensity on the-expression i experiment table, unit is W/m
2The i value is 1,2, represents test material experiment table (2) and control material experiment table (3) respectively;
W
IjThe radiation intensity of-expression i experiment table j position, unit is W/m
2The j value is 1,2 ..., 9, represent 9 intensity collection points on each experiment table respectively;
Formula three:
The i value is 1 in this formula.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661965A (en) * | 2012-05-28 | 2012-09-12 | 哈尔滨工业大学 | Comprehensive indoor solar photo-thermal environment simulator for pavements |
| CN102866174A (en) * | 2012-09-14 | 2013-01-09 | 河南省高远公路养护技术有限公司 | Testing method and device for simulating solar radiation to make researches on differential heat of pavement test specimens |
| CN105486726A (en) * | 2015-12-30 | 2016-04-13 | 中国科学院上海硅酸盐研究所 | Device for testing photo-thermal effect of material |
| CN108760804A (en) * | 2018-06-05 | 2018-11-06 | 上海岑兴实业有限公司 | The method and device of long-range monitoring nano-film coating glass heat-proof performance |
| CN111982353A (en) * | 2020-08-19 | 2020-11-24 | 河海大学 | Device and method for testing sensible temperature of road surface heat reflection and radiation |
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| CN2898811Y (en) * | 2005-07-27 | 2007-05-09 | 马骉 | Photoradiant roadsurface ageing device |
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| CN2898811Y (en) * | 2005-07-27 | 2007-05-09 | 马骉 | Photoradiant roadsurface ageing device |
| CN101818872A (en) * | 2009-02-26 | 2010-09-01 | 富士迈半导体精密工业（上海）有限公司 | Illumination device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661965A (en) * | 2012-05-28 | 2012-09-12 | 哈尔滨工业大学 | Comprehensive indoor solar photo-thermal environment simulator for pavements |
| CN102866174A (en) * | 2012-09-14 | 2013-01-09 | 河南省高远公路养护技术有限公司 | Testing method and device for simulating solar radiation to make researches on differential heat of pavement test specimens |
| CN102866174B (en) * | 2012-09-14 | 2014-09-17 | 河南省高远公路养护技术有限公司 | Testing method and device for simulating solar radiation to make researches on differential heat of pavement test specimens |
| CN105486726A (en) * | 2015-12-30 | 2016-04-13 | 中国科学院上海硅酸盐研究所 | Device for testing photo-thermal effect of material |
| CN108760804A (en) * | 2018-06-05 | 2018-11-06 | 上海岑兴实业有限公司 | The method and device of long-range monitoring nano-film coating glass heat-proof performance |
| CN111982353A (en) * | 2020-08-19 | 2020-11-24 | 河海大学 | Device and method for testing sensible temperature of road surface heat reflection and radiation |
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| CN101915784B (en) | 2012-06-20 |
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