CN110426506A - A kind of experimental rig of indoor simulation soil body evaporation process - Google Patents
A kind of experimental rig of indoor simulation soil body evaporation process Download PDFInfo
- Publication number
- CN110426506A CN110426506A CN201910875902.2A CN201910875902A CN110426506A CN 110426506 A CN110426506 A CN 110426506A CN 201910875902 A CN201910875902 A CN 201910875902A CN 110426506 A CN110426506 A CN 110426506A
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- earth pillar
- pillar cylinder
- bracket
- sliding
- soil body
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- 239000002689 soil Substances 0.000 title claims abstract description 61
- 238000001704 evaporation Methods 0.000 title claims abstract description 53
- 230000008020 evaporation Effects 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 title claims abstract description 24
- 238000004088 simulation Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 29
- 239000000523 sample Substances 0.000 claims description 56
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000002474 experimental method Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000005259 measurement Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 210000000476 body water Anatomy 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 235000011194 food seasoning agent Nutrition 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
- G01N33/246—Earth materials for water content
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
- G01N2033/245—Earth materials for agricultural purposes
Abstract
The invention discloses a kind of experimental rigs of indoor simulation soil body evaporation process, are related to soil body evaporation test technical field.The present invention includes bracket, electronic balance is provided among the inside of the bracket, the top of electronic balance is provided with earth pillar cylinder, soil sample is provided in earth pillar cylinder, several TDR moisture transducers are inserted in earth pillar cylinder, the side of one side stand is provided with fan, another side stand side is provided with Temperature Humidity Sensor, arc panel is provided on the inside of bracket, arc panel slidably connects sliding bar, the top of sliding bar is provided with sliding rail, the bottom end of sliding bar is provided with infrared lamp, the top of bracket is provided with threaded rod, movable block is provided through on threaded rod, the lower part of movable block is provided with push rod, one side of earth pillar cylinder is provided with CCD microscopic camera by support frame.The present invention can precisely simulate the actual evaporation environment of required test sample indoors, be not only advantageous to compare experiment effect, and alleviate extraneous workload.
Description
Technical field
The invention belongs to soil body evaporation test technical fields, specifically, in particular to a kind of indoor simulation soil body evaporation
The experimental rig of process.
Background technique
The evaporation of moisture is different from pure water in soil, has extremely complex occurrence and development process, and by the shadow of many factors
It rings.For a long time, the evaporation about moisture in soil is always the research emphasis in agricultural and soil science field.Especially some
How arid and semi-arid lands, Agricultural Scientist just improve the water retention property of the soil body, reduce the evaporation loss of moisture in soil,
To guarantee the normal growth of crop, a large amount of research work is carried out.In geotechnical engineering field, people steam moisture in soil
The attention degree of question topic is also far from enough, and the research carried out around the project is also fewer.Influence of Evaporation water content of soil and
Engineering properties is the direct inducement of many geotechnical engineering problems.With taking place frequently for extreme drought weather, though it is foreseeable that
It only can be more and more, more and more significant by the various engineering problems of evaporation bring.Therefore, it is necessary to further grasp moisture in soil
Evaporation process and restraining factors.However, at present for the experimental rig of indoor evaporation simulation, it is also relatively fewer, also without wide
General is approved by everybody, and numerous researchers usually directly measure in the external world during studying evaporation capacity, to device
It is not compared with experiment effect etc., lacks and compare；Moreover, simulating daylight in existing device, it is all made of fixed point irradiation, it cannot
The simulated solar more emulated rises in east and drop in west, persistently moves, and shines upon the practical rule that the angle on soil sample surface persistently changes
Rule, causes extraneous sunshine and indoor simulation sunshine to have certain deviation, is likely to result in test result in this way and generates biggish deviation.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For the problems in the relevant technologies, the present invention proposes a kind of experimental rig of indoor simulation soil body evaporation process, with
Overcome above-mentioned technical problem present in existing the relevant technologies.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is a kind of experimental rig of indoor simulation soil body evaporation process, including bracket, in the inside of the bracket
Between and be located at testing stand on be provided with electronic balance, the top of the electronic balance is provided with earth pillar cylinder, sets in the earth pillar cylinder
It is equipped with soil sample, the earth pillar cylinder is uniformly inserted with several TDR moisture transducers, the side setting of bracket described in side from top to bottom
There is fixed plate one, the top of the fixed plate one is provided with fan, and bracket side described in the other side is provided with strut, the strut
End be provided with Temperature Humidity Sensor, the inside of the bracket and be located above the earth pillar cylinder and be provided with arc panel, institute
State and offer through slot in the middle part of arc panel, the inside of the arc panel and be located at the through slot two sides be provided with sliding slot, it is described
Arc panel slidably connects sliding bar by the sliding slot, and the top side of the sliding bar is provided with sliding rail, the sliding bar
Bottom end be provided with infrared lamp, the inside top of the bracket and be located above the arc panel and be provided with threaded rod, institute
It states and is provided through movable block on threaded rod, the lower part of the movable block is provided with push rod, and the end of the push rod is provided with cunning
One side of block one, the earth pillar cylinder is provided with CCD microscopic camera by support frame, and the top of the soil sample is provided with displacement and passes
Sensor, the earth pillar cylinder are uniformly inserted with temperature sensor corresponding with the TDR moisture transducer, institute from top to bottom
The bottom end of earth pillar cylinder is stated configured with water pipe.
Further, the sliding bar is located in the through slot, and the lower part two sides of the sliding bar are symmetrically arranged with sliding block
Two, the sliding block two matches with the sliding slot.
Further, the probe of the TDR moisture transducer through the earth pillar cylinder and extends in the soil sample, described
TDR moisture transducer is respectively connected with TDR collector.
Further, the air outlet of the fan and the top of earth pillar cylinder are flush, the preferably adjustable wind of the fan
Speed, and adjusting wind speed is 1m/s and 3m/s.
Further, one end of the threaded rod through the bracket and extends to its outside, one end of the threaded rod
It is provided with motor.
Further, the movable block is threadedly coupled with the threaded rod, and the push rod is " Z " type bar, the sliding block one
It is slidably connected with the sliding rail.
The invention has the following advantages:
Select instrument first, select infrared lamp (100wh and 200wh), adjustable wind speed fan (1m/s and 3m/s),
Electronic balance (5kg, 0.01kg), earth pillar cylinder select specification: barrel dliameter 10cm is highly 20cm；
After instrument selection, production sample is carried out, soil sample is inserted in earth pillar cylinder, then by TDR moisture transducer
In the preformed hole of the side wall of probe insertion earth pillar cylinder, finally entire earth pillar cylinder is placed on electronic balance, then pacifies each device
Mounted in corresponding position；
After sample completes, it is evaporated test, sample is placed on mounted evaporation test platform in advance such as 1 figure
Shown, the infra-red light irradiation of upside is used to the outer solar radiation situation of simulating chamber, and in actual use, motor passes through retarder band
Dynamic threaded rod slowly runs, to drive movable block to move horizontally on threaded rod while threaded rod rotates, is pushed away by push rod
Dynamic sliding bar moves in arc panel, while as the variation of sliding bar position, sliding block are slided in sliding rail, sliding bar passes through cunning
Block two is slidably connected with arc panel, and then by the positive and negative rotation of control motor, so that sliding bar moves on arc panel, drives red
Outside line lamp is from left to right or slowly mobile from right to left, realizes simulated solar and rises in east and drop in west, the practical rule naturally persistently moved
Rule, the indoor sunshine environment of simulation more meet the sunshine situation in the practical external world, and compactness is higher, so that experimental result is more acurrate.
In addition, adjust the revolving speed of motor when specifically used, so that time that infrared lamp moves from left to right or from right to left and extraneous
Sunshine duration is roughly the same, by the mating reaction of arc panel, sliding bar, movable block and threaded rod, realizes simulated solar east
It rises west to fall, the indoor sunshine environment of the practical natural law persistently moved, simulation more meets the sunshine situation in the practical external world, fitting
Du Genggao, so that experimental result is more acurrate；The fan in left side is used to the different wind speed outside simulating chamber, and Temperature Humidity Sensor is used to survey
Surely indoor environment temperature, the overall operating condition in order to be more nearly Practical Project are tested.Electronic balance is used to measurement experiment process
The evaporation rate of moisture in the middle soil body, uniformly distributed TDR moisture transducer is used to measure soil sample different location beside sample
Moisture content situation.CCD microscopic camera can shoot to obtain in evaporation specimen, the surface situation of change of soil property.
In order to measure the accuracy of evaporation rate, this test is by the way of individually testing, and test is only to one group every time
Sample is evaporated the measurement of rate, selects the electronic balance of three same sizes first, by each group of other three sample point
It is not placed in laboratory on electronic balance, measures the sample weight of starting, open infrared lamp and fan, be adjusted to test respectively
Set condition, during the test, control laboratory internal reads electricity at interval of 1d not by the interference of external environment as far as possible
The reading of sub- balance, well and the reading for reading TDR moisture transducer, and record.Whole experiment process continues 12d, daily from morning 7
Point is opened to 19 infrared lamps at night, for simulating local sunshine situation, after final electronic balance weighing, and obtained matter
Measuring loss amount is exactly evaporation capacity of the sample under certain environment, both the evaporation rate of the available sample.
This sample centimetre is four kinds of different environment, including infrared lamp simulation (100w/h and 200w/h) and wind speed
(1m/s and 3m/s) carries out pure water sample, different soil property samples, concrete cover sample under each different experimental condition
The measurement of evaporation rate.
Whole process of the invention carries out indoors, by carrying out indoor seasoning test to the clay being initially saturated, tests in soil
Moisture evaporation rate analyzes the soil body water evaporation process and spy under varying environment, wind friction velocity with the variation of drying time
Sign, it is final to carry out inquiring into different drying stage soil water interaction mechanism and its to the influence of evaporation, the present invention using data
The actual evaporation environment of required test sample can be precisely simulated indoors, can be simulated indoors under different external conditions
Evaporitic environment can be measured its evaporation capacity by experiment indoors, be not only advantageous to compare experiment effect, and mitigate
Extraneous workload, the configuration of the present invention is simple, it is easy to operate, there is stronger applicability, and cost is relatively low, significant effect.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of inventive embodiments, embodiment will be described below required attached
Figure is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments invented, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is partial structural diagram of the invention；
Fig. 3 is the structural schematic diagram of sliding bar of the invention.
In attached drawing, parts list represented by the reference numerals are as follows:
1, bracket；2, electronic balance；3, earth pillar cylinder；4, soil sample；5, TDR moisture transducer；6, fixed plate one；7, fan；
8, strut；9, Temperature Humidity Sensor；10, arc panel；11, through slot；12, sliding slot；13, sliding bar；1301, sliding block two；14, sliding
Rail；15, threaded rod；1501, motor；16, infrared lamp；17, movable block；18, push rod；19, sliding block one；20, CCD microphotograph
Machine；21, displacement sensor；22, temperature sensor；23, water pipe.
Specific embodiment
Below in conjunction with the attached drawing in inventive embodiments, the technical solution in inventive embodiments is carried out clearly and completely
Description, it is clear that described embodiment is only invention a part of the embodiment, instead of all the embodiments.Based in invention
Embodiment, all other embodiment obtained by those of ordinary skill in the art without making creative efforts,
Belong to the range of invention protection.
In the description of the present invention, it is to be understood that, term " aperture ", "upper", "lower", "top", " in ", "inner", " four
Indicating positions or the positional relationships such as week " be merely for convenience of description invention and simplify description, rather than indication or suggestion is signified
Component or element must have a particular orientation, and be constructed and operated in a specific orientation, therefore should not be understood as the limit to invention
System.
It please referring to shown in Fig. 1-3, the present invention is a kind of experimental rig of indoor simulation soil body evaporation process, including bracket 1,
Electronic balance 2 is provided among the inside of the bracket 1 and on testing stand, electronic balance 2 is used to during measurement experiment
The evaporation capacity of moisture in soil sample 4, to obtain the evaporation rate of moisture, the top of the electronic balance 2 is provided with earth pillar cylinder 3,
Soil sample 4 is provided in the earth pillar cylinder 3, the earth pillar cylinder 3 is uniformly inserted with several TDR moisture transducers 5 from top to bottom, is trying
Uniformly distributed TDR moisture transducer 5 is used to measure the moisture content situation of 4 different location of soil sample beside sample.Bracket 1 described in side
Side be provided with fixed plate 1, the top of the fixed plate 1 is provided with fan 7,1 side of bracket described in the other side setting
There is a strut 8, the end of the strut 8 is provided with Temperature Humidity Sensor 9, the inside of the bracket 1 and is located at the earth pillar cylinder 3
Top is provided with arc panel 10, and the middle part of the arc panel 10 offers through slot 11, the inside of the arc panel 10 and is located at institute
The two sides for stating through slot 11 are provided with sliding slot 12, and the arc panel 10 slidably connects sliding bar 13 by the sliding slot 12, described
The top side of sliding bar 13 is provided with sliding rail 14, and the bottom end of the sliding bar 13 is provided with infrared lamp 16, passes through infrared ray
Lamp 16 simulates the radiation situation of outdoor daylight, the inside top of the bracket 1 and top for being located at the arc panel 10 is arranged
There is threaded rod 15, movable block 17 is provided through on the threaded rod 15, the lower part of the movable block 17 is provided with push rod 18, institute
The end for stating push rod 18 is provided with sliding block 1, and one side of the earth pillar cylinder 3 is provided with CCD microscopic camera by support frame
20, the top of the soil sample 4 is provided with displacement sensor 21, the earth pillar cylinder 3 be uniformly inserted with from top to bottom with it is described
The bottom end of the corresponding temperature sensor 22 of TDR moisture transducer 5, the earth pillar cylinder 3 is configured with water pipe 23, CCD microphotograph
Machine 20 can shoot to obtain in evaporation specimen, the surface situation of change of soil property；The side of bracket 1 is provided with controller, control
Device processed includes display screen and control button, and controller is electrically connected with fan 7, motor 1501 and infrared lamp 16, is passed through
Controller controls the start and stop of fan 7 and adjusts wind speed and control the start and stop of motor 1501, and controller adjusts control infrared lamp 16,
And controller and Temperature Humidity Sensor 9, CCD microscopic camera 20, TDR collector, displacement sensor 21 and temperature sensor 22
Equal signal connection, the temperature and humidity that Temperature Humidity Sensor 9 will test are transferred to controller, controller by way of signal
It shows in the form of data after treatment, CCD microscopic camera 20, TDR collector, displacement sensor 21 and temperature pass
Sensor 22 is similarly；As shown in Figure 1, the outer water receiving tank of water pipe 23, and switch is provided on water pipe 23, and then whether there is or not underground water benefits for simulation
The natural situation given.
In one embodiment, for above-mentioned sliding bar 13, the sliding bar 13 is located in the through slot 11, described
The lower part two sides of sliding bar 13 are symmetrically arranged with sliding block 2 1301, and the sliding block 2 1301 matches with the sliding slot 12, thus
Sliding bar 13 is slidably connected by sliding block 2 1301 with arc panel 10, and then is moved on arc panel 10 by sliding bar 13, band
Dynamic infrared lamp 16 is from left to right or slowly mobile from right to left, realizes simulated solar and rises in east and drop in west, the reality persistently moved
The indoor sunshine environment of the natural law, simulation more meets the sunshine situation in the practical external world, and compactness is higher, so that experimental result is more
Accurately.In addition, fan 7, strut 8 and CCD microscopic camera 20 do not block infrared lamp 16 and irradiate to soil sample when concrete application
4 light.
In one embodiment, for above-mentioned TDR moisture transducer 5, the probe of the TDR moisture transducer 5 is passed through
It wears the earth pillar cylinder 3 and extends in the soil sample 4, the TDR moisture transducer 5 is respectively connected with TDR collector, to pass through
TDR moisture transducer 5 measures the moisture content situation of 4 different location of soil sample, is then communicated to TDR collector and is read out, into
And the water-cut variation situation of 4 different location of soil sample is recognized in relatively clear observation.
In one embodiment, for said fans 7, the top of the air outlet and earth pillar cylinder 3 of the fan 7 is mutually neat
It is flat, the preferably adjustable wind speed of the fan 7, and adjusting wind speed is 1m/s and 3m/s, to pass through the fan 7 that wind speed is adjusted
Carry out the different wind speed environments outside simulating chamber.
In one embodiment, for above-mentioned threaded rod 15, the bracket 1 is run through simultaneously in one end of the threaded rod 15
Its outside is extended to, one end of the threaded rod 15 is provided with motor 1501, to drive 15 turns of threaded rod by motor 1501
It is dynamic, and then pass through the mating reaction of threaded rod 15 and movable block 17, it pushes sliding bar 13 slowly to move in arc panel 10, slides
Bar 13 drives infrared lamp 16 slowly mobile.In addition, the junction of threaded rod 15 and bracket 1 is provided with axis when concrete application
It holds, threaded rod 15 and bearing junction are non-threaded, and retarder is arranged in the output end of motor 1501, and the output end of motor 1501 passes through
Retarder is connect with threaded rod 15.
In one embodiment, for above-mentioned movable block 17, the movable block 17 connects with 15 screw thread of threaded rod
It connecing, the push rod 18 is " Z " type bar, and the sliding block 1 is slidably connected with the sliding rail 14, thus rotated by threaded rod 15,
Drive movable block 17 to move on threaded rod 15, push rod 18 is " Z " type bar, can anti-throw-out lever 18 stop sliding bar 13 to rise,
Sliding block 1 can slide up and down in sliding rail 14, so that sliding bar 13 can be left along arc panel 10 in arc panel 10
It moves right.
In conclusion selecting instrument first by means of above-mentioned technical proposal of the invention, 16 (100wh of infrared lamp is selected
And 200wh), the fan 7 (1m/s and 3m/s) of adjustable wind speed, electronic balance 2 (5kg, 0.01kg), earth pillar cylinder 3 select specification:
Barrel dliameter is 10cm, is highly 20cm；
After instrument selection, production sample is carried out, soil sample 4 is inserted in earth pillar cylinder 3, then by TDR moisture transducer 5
Probe insertion earth pillar cylinder 3 side wall preformed hole in, finally entire earth pillar cylinder 3 is placed on electronic balance 2, then by each dress
It sets and is mounted on corresponding position；
After sample completes, it is evaporated test, sample is placed on mounted evaporation test platform in advance such as 1 figure
Shown, the infrared lamp 16 of upside irradiates, and is used to the outer solar radiation situation of simulating chamber, in actual use, motor 1501 is by subtracting
Fast device drives threaded rod 15 to slowly run, to drive movable block 17 is horizontal on threaded rod 15 to move while threaded rod 15 rotates
It is dynamic, push sliding bar 13 to move in arc panel 10 by push rod 18, while with the variation of 13 position of sliding bar, sliding block 1
It is slided in sliding rail 14, sliding bar 13 is slidably connected by sliding block 2 1301 with arc panel 10, and then passes through control motor 1501
Positive and negative rotation drive infrared lamp 16 slowly to move from left to right or from right to left so that sliding bar 13 moves on arc panel 10
It is dynamic, it realizes simulated solar and rises in east and drop in west, the indoor sunshine environment of the practical natural law persistently moved, simulation more meets reality
Extraneous sunshine situation, compactness is higher, so that experimental result is more acurrate.In addition, adjusting turning for motor 1501 when specifically used
Speed, so that the time that infrared lamp 16 moves from left to right or from right to left is roughly the same with extraneous sunshine duration；The wind in left side
Fan 7 is used to the different wind speed outside simulating chamber, and Temperature Humidity Sensor 9 is used to the indoor environment temperature of measurement experiment, overall in order to more
The operating condition of the nearly Practical Project of adjunction.Electronic balance 2 is used to the evaporation rate of moisture in the soil body during measurement experiment, by sample
The uniformly distributed TDR moisture transducer 5 in side is used to measure the moisture content situation of 4 different location of soil sample.CCD microscopic camera 20 can
Shooting obtains in evaporation specimen, the surface situation of change of soil property, by the temperature sensor 22 of different location, to supervise
The variation for surveying each depth temperature of soil sample in evaporation process is placed displacement sensor 21 by 4 top of soil sample, was evaporated to monitor
The variation of 4 short transverse volume of soil sample in journey can accurately simulate soil sample 4 whether there is or not ground by the setting of water pipe 23
The evaporation process of supplying water condition under lower water state, enables whole device to be bonded actual conditions, the experiment of acquisition as far as possible
Data are more accurate.
In order to measure the accuracy of evaporation rate, this test is by the way of individually testing, and test is only to one group every time
Sample is evaporated the measurement of rate, selects the electronic balance 2 of three same sizes first, by each group of other three sample point
It is not placed on the sample weight on electronic balance 2, measuring starting in laboratory, opens infrared lamp 16 and fan 7, is adjusted to respectively
The set condition of test, during the test, control laboratory internal is read not by the interference of external environment at interval of 1d as far as possible
The reading of electronic balance 2 is taken, and reads the reading of TDR moisture transducer 5, and record.Whole experiment process continues 12d, daily
It is opened from morning to 19 infrared lamps 16 at night for 7 points, for simulating local sunshine situation, after final electronic balance 2 is weighed,
Obtained mass loss amount is exactly evaporation capacity of the sample under certain environment, both the evaporation rate of the available sample.
This sample centimetre is four kinds of different environment, including infrared lamp simulation (100w/h and 200w/h) and wind speed
(1m/s and 3m/s) carries out pure water sample, different soil property samples, concrete cover sample under each different experimental condition
The measurement of evaporation rate.
Whole process of the invention carries out indoors, by carrying out indoor seasoning test to the clay being initially saturated, tests in soil
Moisture evaporation rate analyzes the soil body water evaporation process and spy under varying environment, wind friction velocity with the variation of drying time
Sign, finally carries out inquiring into different drying stage soil water interaction mechanism and its to the influence of evaporation using data.
Through the above technical solutions, the 1, present invention can precisely simulate the actual evaporation ring of required test sample indoors
Border, can accurately simulate the evaporitic environment under extraneous different condition indoors, pass through reality indoors to its evaporation capacity
Test obtains, and is not only advantageous to compare experiment effect, and alleviates extraneous workload；2, pass through arc panel 10, slide
The mating reaction of lever 13, movable block 17 and threaded rod 15 realizes simulated solar and rises in east and drop in west, the practical nature persistently moved
The indoor sunshine environment of rule, simulation more meets the sunshine situation in the practical external world, and compactness is higher, so that experimental result is more quasi-
Really；3, the configuration of the present invention is simple, it is easy to operate, there is stronger applicability, and cost is relatively low, and experimental result it is more accurate,
Reliably, significant effect.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one embodiment of invention
Or in example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.And
And particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples with suitable
Mode combine.
Invention disclosed above preferred embodiment is only intended to help to illustrate invention.There is no detailed descriptionthes for preferred embodiment
All details, do not limit the invention to the specific embodiments described.Obviously, according to the content of this specification, can make
Many modifications and variations.These embodiments are chosen and specifically described to this specification, is the principle in order to preferably explain invention
And practical application, so that skilled artisan be enable to better understand and utilize invention.Invention is only by claim
The limitation of book and its full scope and equivalent.
Claims (6)
1. a kind of experimental rig of indoor simulation soil body evaporation process, including bracket (1), it is characterised in that: the bracket (1)
It being provided with electronic balance (2) among inside and on testing stand, the top of the electronic balance (2) is provided with earth pillar cylinder (3),
It is provided with soil sample (4) in the earth pillar cylinder (3), the earth pillar cylinder (3) is uniformly inserted with several TDR moisture transducers from top to bottom
(5), the side of bracket described in side (1) is provided with fixed plate one (6), and the top of the fixed plate one (6) is provided with fan
(7), bracket described in the other side (1) side is provided with strut (8), and the end of the strut (8) is provided with Temperature Humidity Sensor
(9), the inside of the bracket (1) and be located at the earth pillar cylinder (3) above be provided with arc panel (10), the arc panel (10)
Middle part offer through slot (11), the inside of the arc panel (10) and be located at the through slot (11) two sides be provided with sliding slot
(12), the arc panel (10) is slidably connected sliding bar (13) by the sliding slot (12), the top of the sliding bar (13)
Side is provided with sliding rail (14), and the bottom end of the sliding bar (13) is provided with infrared lamp (16), the medial roof of the bracket (1)
It holds and is located above the arc panel (10) and be provided with threaded rod (15), be provided through movable block on the threaded rod (15)
(17), the lower part of the movable block (17) is provided with push rod (18), and the end of the push rod (18) is provided with sliding block one (19), institute
The one side for stating earth pillar cylinder (3) is provided with CCD microscopic camera (20) by support frame, and the top of the soil sample (4) is provided with position
Displacement sensor (21), the earth pillar cylinder (3) are uniformly inserted with corresponding with TDR moisture transducer (5) from top to bottom
Temperature sensor (22), the bottom end of the earth pillar cylinder (3) is configured with (23).
2. a kind of experimental rig of indoor simulation soil body evaporation process according to claim 1, which is characterized in that the cunning
Lever (13) is located in the through slot (11), and the lower part two sides of the sliding bar (13) are symmetrically arranged with sliding block two (1301), institute
Sliding block two (1301) is stated to match with the sliding slot (12).
3. a kind of experimental rig of indoor simulation soil body evaporation process according to claim 1, which is characterized in that described
The probe of TDR moisture transducer (5) is through the earth pillar cylinder (3) and extends in the soil sample (4), the TDR moisture sensing
Device (5) is respectively connected with TDR collector.
4. a kind of experimental rig of indoor simulation soil body evaporation process according to claim 1, which is characterized in that the wind
The top for fanning the air outlet and earth pillar cylinder (3) of (7) is flush, the preferably adjustable wind speed of the fan (7), and adjusts wind speed and be
1m/s and 3m/s.
5. a kind of experimental rig of indoor simulation soil body evaporation process according to claim 1, which is characterized in that the spiral shell
One end of rasp bar (15) is through the bracket (1) and extends to its outside, and one end of the threaded rod (15) is provided with motor
(1501)。
6. a kind of experimental rig of indoor simulation soil body evaporation process according to claim 1, which is characterized in that the shifting
Motion block (17) is threadedly coupled with the threaded rod (15), and the push rod (18) is " Z " type bar, the sliding block one (19) and the cunning
Rail (14) is slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111239374A (en) * | 2020-03-25 | 2020-06-05 | 中铁二院成都勘察设计研究院有限责任公司 | Saline soil salt expansion characteristic test device |
| CN111679062A (en) * | 2020-07-20 | 2020-09-18 | 中南大学 | Consolidation compression instrument for testing dry-wet cycle characteristics of expansive soil |
| CN113720993A (en) * | 2021-07-12 | 2021-11-30 | 中国农业大学 | Earth pillar test device |
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