CN106226499B - A kind of frozen soil experiment device of combination temp gradient - Google Patents
A kind of frozen soil experiment device of combination temp gradient Download PDFInfo
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- CN106226499B CN106226499B CN201610764631.XA CN201610764631A CN106226499B CN 106226499 B CN106226499 B CN 106226499B CN 201610764631 A CN201610764631 A CN 201610764631A CN 106226499 B CN106226499 B CN 106226499B
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- frozen soil
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- 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
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Automation & Control Theory (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Geology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of frozen soil experiment devices of combination temp gradient, including experiment casing, sample cylinder, cold air pump and control centre, sample cylinder is set in the chamber of experiment casing, and the cavity bottom center of experiment casing is fixedly installed a supporting block, sample cylinder is fixed in supporting block, for placing frozen soil sample in sample cylinder；Experiment casing includes head cover and experiment box main body, and head cover is snapped connection with experiment box main body, and air inlet is arranged on head cover, and the bottom for testing box main body is equipped with air outlet；If being plugged with dried layer wind deflector on the outer wall of sample cylinder, cold air pump is electrically connected with control centre.Being provided with for wind deflector carries out conduction cooling wind conducive to frozen soil sample in the present invention, and frozen soil sample is made quickly to realize the adjusting of temperature；And the top-down diameter of wind deflector gradually decrease and SAPMAC method pipe in refrigerant agent it is top-down recycled enable ensure frozen soil sample time gradual temperature change, it is easier to realize combination temperature gradient.
Description
Technical field
The present invention relates to a kind of devices carrying out temperature gradient experiment to frozen soil, more particularly to a kind of combination temp gradient
Frozen soil experiment device.
Background technology
Temperature field may be regarded as the combination of multiple temperature gradients on frozen soil space scale in frozen soils structure, but due in frozen soil
Temperature gradient be in non-uniform Distribution, frozen soil sample local deformation distribution pattern on time and space scale have it is non-linear, make
Researcher in the research experiment to frozen soil, temperature gradient variation can not easily be carried out to the property of frozen soil and state
Experiment and observation, it is more difficult to be combined in temperature gradient the research to frozen soil change field and its Evolution.
Therefore, for cyopedology person, a kind of combination temp gradient experiment device suitable for ever-frozen ground is developed,
As the demand in current cyopedology field.
Invention content
The object of the present invention is to provide a kind of frozen soil experiment devices of combination temp gradient, are deposited with solving the above-mentioned prior art
The problem of, so that the experimental provision is realized the adjusting to the combination temp gradient of frozen soil, and make its temperature gradient effect
Obviously, mode of operation is easy, and controllability is good.
To achieve the above object, the present invention provides following schemes：The present invention provides a kind of frozen soil of combination temp gradient
Experimental rig, it is characterised in that：It is set to described including experiment casing, sample cylinder, cold air pump and control centre, the sample cylinder
In the chamber of experiment casing, and the cavity bottom center of the experiment casing is fixedly installed a supporting block, and the sample cylinder is solid
It is fixed to be arranged in the supporting block, for placing frozen soil sample in the sample cylinder；The experiment casing includes head cover and experiment
Box main body, the head cover are snapped connection with the experiment box main body, and at least one air inlet, the examination are provided on the head cover
The bottom sides of tryoff main body offer at least one air outlet, and the cold air pump is for blowing to air inlet；The sample cylinder
If outer wall on be plugged with dried layer wind deflector, the cold air pump is electrically connected with the control centre.
Optionally, be provided with a pressurization lid at the top of the sample cylinder, the pressurization lid be used for the frozen soil sample into
Row pressurization, the pressurization lid top is fixedly installed a connecting rod, and the connecting rod stretches out the top of the experiment casing
Lid.
Optionally, the wind deflector is in disk form is plugged on the outer wall of the sample cylinder, and top-down adjacent two
The diameter of the layer wind deflector successively decreases successively.
Optionally, temperature sensor, the temperature sensor and the control are both provided between each layer wind deflector
Center is electrically connected.
Optionally, the sample cylinder lateral surface is further fixedly arranged on SAPMAC method pipe, and the SAPMAC method pipe is with spiral winding
Mode is arranged on the outside of the sample cylinder, and the wind deflector is located between the gap of the SAPMAC method pipe spiral winding, described cold
Circulation pipe is electrically connected with the control centre.
Optionally, it is refrigerant agent in the SAPMAC method pipe.
Optionally, the refrigerant agent in the SAPMAC method pipe is recycled from top to bottom.
The present invention achieves following technique effect compared with the existing technology：
Being provided with for wind deflector carries out conduction cooling wind conducive to frozen soil sample in the present invention, and frozen soil sample is made quickly to realize temperature
The adjusting of degree；And the top-down diameter of wind deflector gradually decrease and SAPMAC method pipe in refrigerant agent top-down followed
Ring, which enables, ensures frozen soil sample time gradual temperature change, it is easier to realize combination temperature gradient.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the overall structure diagram of the frozen soil experiment device of combination temp gradient in the present invention；
Wherein, 1 air inlet；2 experiment casings；3 wind deflectors；4 air outlets；5 supporting blocks；6 frozen soil samples；7 sample cylinders；8 is cold
Circulation pipe；9 temperature sensors；10 pressurization lids；11 connecting rods；12 head covers.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of frozen soil experiment devices of combination temp gradient, are deposited with solving the above-mentioned prior art
The problem of, so that the experimental provision is realized the adjusting to the combination temp gradient of frozen soil, and make its temperature gradient effect
Obviously, mode of operation is easy, and controllability is good.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
It please refers to Fig.1, wherein Fig. 1 is the overall structure signal of the frozen soil experiment device of combination temp gradient in the present invention
Figure.
Embodiment one
As shown in Figure 1, a kind of frozen soil experiment device of combination temp gradient is provided in the present embodiment, including experiment casing 2,
Sample cylinder 7, cold air pump and control centre, sample cylinder 7 are set in the chamber of experiment casing 2, and the cavity bottom of experiment casing 2
Center is fixedly installed a supporting block 5, and sample cylinder 7 is fixed in supporting block 5, for placing frozen soil sample in sample cylinder 7
6；Experiment casing 2 include head cover 12 with experiment box main body, head cover 12 with test box main body snap connection, be provided on head cover 12 to
A few air inlet 1, the bottom sides for testing box main body offer at least one air outlet 4, and cold air is pumped for blowing air inlet 1
Gas；If being plugged with dried layer wind deflector 3 on the outer wall of sample cylinder 7, cold air pump is electrically connected with control centre.
Frozen soil sample 6 is placed into sample cylinder 7 by the frozen soil experiment device of the combination temp gradient in the present embodiment first
In, sample cylinder 7 is sealed, then according to the needs of combination temp gradient, on the outer wall of sample cylinder 7 equidistant grafting lead
Aerofoil 3, and temperature sensor 9 is set between two neighboring wind deflector 3, wind deflector 3 is set on sample cylinder 7 to be passed with temperature
Sample cylinder 7 is put into experiment casing 2 by sensor 9 later, and sample cylinder 7 is fixed in supporting block 5, by the top of experiment casing 2
Lid 12 covers；Cold air pump is opened, to supplying cold wind in experiment casing 2, wind deflector 3 is used to carry out conduction cooling wind to frozen soil sample 6, make
Frozen soil sample 6 can reach scheduled temperature in a relatively short period of time, since cold wind has one in top-down flow process
Fixed energy loss, to realize that the temperature gradient of frozen soil sample 6 is adjusted.
Embodiment two
As shown in Figure 1, the present embodiment provides a kind of frozen soil experiment devices of combination temp gradient, on the basis of embodiment one
On, the frozen soil experiment device of the combination temp gradient in the present embodiment also has the characteristics that：
The top of sample cylinder 7 is provided with a pressurization lid 10, and pressurization lid 10 is used to carry out pressurization to frozen soil sample 6, protect
Card ambient atmos or environment do not impact frozen soil sample 6, and 10 top of pressurization lid is fixedly installed a connecting rod 11, and connects
Bar 11 stretches out the head cover 12 of experiment casing 2, facilitates the decentralization and taking-up of sample cylinder 7.
Wind deflector 3 is in disk form to be plugged on the outer wall of sample cylinder 7, top-down adjacent two layers of wind deflector 3 it is straight
Diameter successively decreases successively, i.e., reduces the intake to frozen soil sample 6 successively, realize the adjusting of temperature gradient.
Temperature sensor 9 is both provided between each layer wind deflector 3, temperature sensor 9 is electrically connected with control centre, to frozen soil
The temperature of experiment carries out implementation monitoring, to feed back to control centre, and then control cold air pump to air quantity.
7 lateral surface of sample cylinder is further fixedly arranged on SAPMAC method pipe 8, and SAPMAC method pipe 8 is arranged in sample in a manner of spiral winding
7 outside of product cylinder, wind deflector 3 are located between the gap of 8 spiral winding of SAPMAC method pipe, and SAPMAC method pipe 8 is electrically connected with control centre, cold
Circulation pipe 8 plays booster action to the temperature adjusting of frozen soil sample 6.
It is refrigerant agent, such as freon etc. in SAPMAC method pipe 8.
Refrigerant agent in SAPMAC method pipe 8 is recycled from top to bottom.
Specific case is applied in the present invention, and principle and implementation of the present invention are described, above example
Illustrate the method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (6)
1. a kind of frozen soil experiment device of combination temp gradient, it is characterised in that：Including experiment casing, sample cylinder, cold air pump and
Control centre, the sample cylinder are set in the chamber of the experiment casing, and the cavity bottom center of the experiment casing is solid
Surely it is provided with a supporting block, the sample cylinder is fixed in the supporting block, for placing frozen soil examination in the sample cylinder
Sample；The experiment casing includes head cover and experiment box main body, and the head cover is snapped connection with the experiment box main body, the head cover
On be provided at least one air inlet, the bottom sides of the experiment box main body offer at least one air outlet, the cold air
Pump is for blowing to air inlet；If being equidistantly plugged with dried layer wind deflector on the outer wall of the sample cylinder, the cold air pump and institute
State control centre's electrical connection；The wind deflector is in disk form to be plugged on the outer wall of the sample cylinder, top-down adjacent
The diameter of two layers of wind deflector successively decreases successively.
2. a kind of frozen soil experiment device of combination temp gradient according to claim 1, it is characterised in that：The sample cylinder
Top be provided with a pressurization lid, the pressurization lid is used to carry out pressurization, the pressurization lid top to the frozen soil sample
It is fixedly installed a connecting rod, and the connecting rod stretches out the head cover of the experiment casing.
3. a kind of frozen soil experiment device of combination temp gradient according to claim 1, it is characterised in that：It is led described in each layer
Temperature sensor is both provided between aerofoil, the temperature sensor is electrically connected with the control centre.
4. a kind of frozen soil experiment device of combination temp gradient according to claim 1, it is characterised in that：The sample cylinder
Lateral surface is further fixedly arranged on SAPMAC method pipe, and the SAPMAC method pipe is arranged in a manner of spiral winding on the outside of the sample cylinder,
The wind deflector is located between the gap of the SAPMAC method pipe spiral winding, and the SAPMAC method pipe is electrically connected with the control centre
It connects.
5. a kind of frozen soil experiment device of combination temp gradient according to claim 4, it is characterised in that：The SAPMAC method
It is refrigerant agent in pipe.
6. a kind of frozen soil experiment device of combination temp gradient according to claim 5, it is characterised in that：The SAPMAC method
Refrigerant agent in pipe is recycled from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610764631.XA CN106226499B (en) | 2016-08-30 | 2016-08-30 | A kind of frozen soil experiment device of combination temp gradient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610764631.XA CN106226499B (en) | 2016-08-30 | 2016-08-30 | A kind of frozen soil experiment device of combination temp gradient |
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| CN106226499A CN106226499A (en) | 2016-12-14 |
| CN106226499B true CN106226499B (en) | 2018-08-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108195748B (en) * | 2018-01-17 | 2023-08-15 | 绍兴文理学院元培学院 | Test device and method for treating effect of yin-yang slope |
| CN112345734B (en) * | 2020-12-05 | 2023-01-17 | 安徽理工大学 | Frozen soil high pressure K capable of considering temperature gradient 0 Consolidation experimental device |
| CN114235597B (en) * | 2021-11-01 | 2023-09-29 | 安徽理工大学 | Frozen soil true triaxial rigid loading mold based on temperature gradient and operation method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU916650A1 (en) * | 1980-05-23 | 1982-03-30 | Uralsky Politekhn Inst | Apparatus for simulating soil freezing properties |
| SU1048407A1 (en) * | 1981-05-08 | 1983-10-15 | Калининский Ордена Трудового Красного Знамени Политехнический Институт | Dispersed material physical mechanical characteristic investigation device |
| CN103091180A (en) * | 2013-01-11 | 2013-05-08 | 中国矿业大学 | Uniaxial creep testing device and method for frozen earth with temperature gradient |
| CN103364266A (en) * | 2013-07-24 | 2013-10-23 | 中国矿业大学 | Two-dimensional temperature gradient tjaele test device and use method thereof |
| CN103728185A (en) * | 2013-12-31 | 2014-04-16 | 北京交通大学 | Low-temperature dynamic triaxial apparatus |
| CN104215749A (en) * | 2014-09-15 | 2014-12-17 | 中国矿业大学 | Realization method of combined temperature gradient in frozen earth |
| CN104655823A (en) * | 2015-02-12 | 2015-05-27 | 中南大学 | Frost heaving meter |
| CN206020420U (en) * | 2016-08-30 | 2017-03-15 | 中国科学院寒区旱区环境与工程研究所 | A kind of frozen soil experiment device of combination temp gradient |
-
2016
- 2016-08-30 CN CN201610764631.XA patent/CN106226499B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU916650A1 (en) * | 1980-05-23 | 1982-03-30 | Uralsky Politekhn Inst | Apparatus for simulating soil freezing properties |
| SU1048407A1 (en) * | 1981-05-08 | 1983-10-15 | Калининский Ордена Трудового Красного Знамени Политехнический Институт | Dispersed material physical mechanical characteristic investigation device |
| CN103091180A (en) * | 2013-01-11 | 2013-05-08 | 中国矿业大学 | Uniaxial creep testing device and method for frozen earth with temperature gradient |
| CN103364266A (en) * | 2013-07-24 | 2013-10-23 | 中国矿业大学 | Two-dimensional temperature gradient tjaele test device and use method thereof |
| CN103728185A (en) * | 2013-12-31 | 2014-04-16 | 北京交通大学 | Low-temperature dynamic triaxial apparatus |
| CN104215749A (en) * | 2014-09-15 | 2014-12-17 | 中国矿业大学 | Realization method of combined temperature gradient in frozen earth |
| CN104655823A (en) * | 2015-02-12 | 2015-05-27 | 中南大学 | Frost heaving meter |
| CN206020420U (en) * | 2016-08-30 | 2017-03-15 | 中国科学院寒区旱区环境与工程研究所 | A kind of frozen soil experiment device of combination temp gradient |
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