CN206788079U - A kind of thermal conductivity of frozen soils measure device of controllable temperature - Google Patents
A kind of thermal conductivity of frozen soils measure device of controllable temperature Download PDFInfo
- Publication number
- CN206788079U CN206788079U CN201720673788.1U CN201720673788U CN206788079U CN 206788079 U CN206788079 U CN 206788079U CN 201720673788 U CN201720673788 U CN 201720673788U CN 206788079 U CN206788079 U CN 206788079U
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- cooling bath
- thermal conductivity
- soil sample
- thermostated cooling
- disk
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Abstract
The utility model discloses a kind of thermal conductivity of frozen soils of controllable temperature to determine device.Its structure composition is the insulating cover that two layers of lucite cylinder is formed, upper and lower thermostated cooling bath disk temperature regulating device, soil sample to be measured is placed in cylinder, temperature sensor is placed inside soil sample, after soil sample internal temperature reaches constant and uniform state, thermostated cooling bath disk in opening, pass through thermal conductivity factor Quick testing instrument（Heat-pole method）Determine soil sample thermal conductivity factor.After measure terminates, soil sample is taken out, remaining each portion's part of dismounting device.Present apparatus temperature control is accurate, and insulation is tight, and soil sample surface can be made to meet test planarization requirement, quick to determine soil sample thermal conductivity factor so as to effectively reduce evaluated error.Test process is simple to operate, and device facilitates peace to tear open, accurately determines very much the thermal conductivity factor of frozen soil under specified temp.
Description
Technical field
A kind of thermal conductivity of frozen soils measure device of controllable temperature is the utility model is related to, can be completed using the device specific
The Measured Results of Thermal Conductivity of frozen soil sample under temperature conditionss.
Background technology
The thermal conductivity factor of same material can be different with the change of temperature, and therefore, thermal conductivity factor is mass temperature
Function.Because the height of mass temperature directly reflects the dense degree of material molecule and the degree of strength of warm-up movement, therefore material
Thermal conductivity factor is closely related with temperature.This requires during to experiment soil sample measure thermal conductivity factor, need to accurately control soil
Sample temperature, and the stability and uniformity of soil sample internal temperature are kept, therefore, the thermal conductivity of frozen soils for developing a kind of controllable temperature is surveyed
Determine device.
Utility model content
The technical problems to be solved in the utility model is a kind of thermal conductivity of frozen soils measure device of controllable temperature, and it can be with complete
The measure of frozen soil sample thermal conductivity factor, meets test requirements document under into specific temperature conditions.
In order to solve the above technical problems, the technical scheme of the utility model patent is：A kind of frozen soil heat conduction system of controllable temperature
Number measure device, its key technology are：It includes interior lucite cylinder, the outer lucite outside interior lucite cylinder
Cylinder, the upper thermostated cooling bath disk located at interior lucite cylinder top and the lower thermostated cooling bath disk located at interior lucite cylinder bottom and
For installing the metallic support of lower thermostated cooling bath disk, the interior lucite cylinder and outer lucite cylinder vacuum seal between the two
Close, form the sleeve that can be incubated；Soil sample to be measured is placed above in the lower thermostated cooling bath disk, and the soil sample upper surface to be measured is placed
There is Hot Wire Technique for Measuring thermal conductivity factor probe, temperature sensor is embedded with the soil sample to be measured；
The upper thermostated cooling bath disk is provided with the circulation body lotion import of upper thermostated cooling bath disk and upper thermostated cooling bath disk circulation body lotion
Outlet, the lower thermostated cooling bath disk is provided with the circulation body lotion import of lower thermostated cooling bath disk and lower thermostated cooling bath disk circulation body lotion goes out
Mouthful.
Further to improve, the upper thermostated cooling bath disk is provided with temperature sensor import and top plate handle.
It is further to improve, the metal support for playing integrated support effect is provided with outside the outer lucite cylinder.
Preferably, plane has the cutting for the circulation of constant temperature body lotion, the upper thermostated cooling bath disk circulation on upper thermostated cooling bath disk
Body lotion import and the outlet of upper thermostated cooling bath disk circulation body lotion butt up against the notch on thermostated cooling bath disk.
It is using beneficial effect caused by above-mentioned technical proposal：
1st, the device uses upper and lower thermostated cooling bath disk temperature control, and upper thermostated cooling bath disk is to pass with lower thermostated cooling bath disk material
Hot preferably metal heat conduction plate, internal plane have cryostat liquid circulating slot, can by the connection with external constant temperature bath testing machine
It is easy to operate fast and accurately by soil sample temperature control on particular value, accurate and effective.
2nd, the utility model is incubated using inside and outside lucite bucket, temperature sensor thermometric.Pass through temperature control, insulation, thermometric
The cooperation of part, realize the stabilization of soil sample internal temperature to be measured, be uniformly distributed, frozen soil heat conduction under significant increase different temperatures
The accuracy of coefficient determination.
3rd, using the utility model, soil sample surface is after the temperature of upper thermostated cooling bath disk is constant, while producing frost heave
Ensure its surfacing, reached basic demand of the heat-pole method for Measured Results of Thermal Conductivity, soil sample heat conduction can be rapidly performed by
The measure of coefficient.
4th, the utility model realize measure soil sample thermal conductivity factor during for soil sample temperature controllability, temperature controllable
It is big to spend scope（- 20 DEG C to 20 DEG C）, temperature-controlled precision height（0.1℃）, meet laboratory test and determine thermal conductivity of frozen soils specific
Test requirements document under temperature conditionss, using effect are good.
Brief description of the drawings
Fig. 1 is the utility model schematic device；
Fig. 2 is certain soil sample Measured Results of Thermal Conductivity work sheet.
Embodiment
To make above-mentioned purpose of the present utility model, feature and advantage can be more obvious understandable, below in conjunction with this practicality
The drawings and specific embodiments in new embodiment, the technical scheme in the embodiment of the utility model is carried out clear, complete
Ground describes, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole embodiments.Base
Embodiment in the utility model, the institute that those of ordinary skill in the art are obtained under the premise of creative work is not made
There is other embodiment, belong to the scope of the utility model protection.
Referring to accompanying drawing 1 and accompanying drawing 2, the utility model include interior lucite cylinder 1, outer lucite cylinder 2, top plate handle 3,
Upper thermostated cooling bath disk 4, upper thermostated cooling bath disk circulation body lotion import 7, upper thermostated cooling bath disk circulation body lotion outlet 8, lower thermostated cooling bath
Disk 6, lower thermostated cooling bath disk circulation body lotion import 10, lower thermostated cooling bath disk circulation body lotion outlet 11, metallic support 12, metal support
13rd, temperature sensor import 14 and temperature sensor 15.
Interior lucite cylinder 1 uses thickness as 1cm poly (methyl methacrylate) plate, and high 35cm, internal diameter 20cm cylinder is made.It is outer organic
Glass infuser 2 uses poly (methyl methacrylate) plate of the thickness for 1cm, height 35cm, internal diameter 25cm.Interior lucite cylinder 1 is placed in outer organic glass
Within glass cylinder 2, two layers of lucite cylinder vacuumizes sealing, forms insulation sleeve.Sleeve bottom is fixed with lower thermostated cooling bath disk 6 to be connected
Connect, be placed on metallic support 12, the bottom of lower thermostated cooling bath disk 6 is provided with lower thermostated cooling bath disk circulation body lotion import 10 and lower perseverance
Warm cryostat dish circulation body lotion outlet 11, is connected with external thermostated cooling bath testing machine, constant temperature is provided by external thermostated cooling bath testing machine.
Soil sample 5 to be measured is placed in interior lucite cylinder 1, on lower thermostated cooling bath disk 6, is close to lower thermostated cooling bath disk 6, is reached soil sample
Constant temperature stabilization sub stage, upper thermostated cooling bath disk should be also in close contact with soil sample, and this can make soil sample ensure its table while frost heave
Face is smooth.Upper thermostated cooling bath disk 4 is placed in soil sample surface, height adjustable.Make soil sample temperature constant periods, also need to make soil sample with it is upper
Thermostated cooling bath disk 4 is close to.In the measure soil sample thermal conductivity factor stage, thermostated cooling bath disk 4 is taken away, by Hot Wire Technique for Measuring thermal conductivity factor
Probe 9 is placed on soil sample, is connected external quick conductive coefficient measuring instrument by heater wire, is determined soil sample thermal conductivity factor.Heat conduction
Coefficient determination probe 9 is connected with quick conductive coefficient measuring instrument 16.Upper thermostated cooling bath disk 4 uses the preferable metal material of heat conductivity
Material, dig has cryostat liquid circulating slot thereon, and notch circulates with upper thermostated cooling bath disk circulation body lotion import 7 and upper thermostated cooling bath disk respectively
Body lotion outlet 8 is docked, and top plate handle 3 is installed on upper thermostated cooling bath disk 4, conveniently take sample and measure thermal conductivity factor.Upper constant temperature
Cryostat dish also pass through upper thermostated cooling bath disk circulation fluid import and the outlet of upper thermostated cooling bath disk circulation fluid and external thermostated cooling bath respectively
Testing machine is connected, and specified temp is provided for soil sample.In interior lucite cylinder 1 during the thermal conductivity factor of measure soil sample 5 to be measured, it is equipped with
Temperature sensor probe 15, it is placed in the middle part of soil sample 5 to be measured.Also plane has for the circulation of constant temperature body lotion on the lower thermostated cooling bath disk 6
Cutting.
Referring to accompanying drawing 2, the detailed process that soil sample thermal conductivity factor is determined using the device is as follows：It is fast using QTM-500 models
Fast thermal conductivity measuring apparatus is tested, and soil sample 5 to be measured is placed in interior lucite cylinder 1, makes soil sample 5 to be measured and upper constant temperature cold
Bath 4 and lower thermostated cooling bath disk 6 are in close contact, and treat that temperature sensor 15 shows that constant temperature is stable inside soil sample, into measure soil sample
In the thermal conductivity factor stage, take thermostated cooling bath disk 4 away, soil sample 5 to be measured is in close contact with lower thermostated cooling bath disk 6.
Specific connection is shown in Fig. 2：The upper thermostated cooling bath disk circulation body lotion import 7 and the circulation bath of lower thermostated cooling bath disk of device
Liquid import 10 is connected with external constant temperature bath testing machine outlet 18；Upper thermostated cooling bath disk circulation body lotion outlet 8 and lower thermostated cooling bath disk
Circulation body lotion outlet 11 is connected with external constant temperature bath testing machine import 17；Heater wire 19 by Hot Wire Technique for Measuring thermal conductivity factor pop one's head in 9
It is connected with quick conductive coefficient measuring instrument 16；Temperature sensor 15 is connected with Temperature sampler 20.
The utility model temperature control is accurate, and insulation is tight, and soil sample surface can be made to meet test planarization requirement, so as to effectively
Reduce evaluated error, it is quick to determine soil sample thermal conductivity factor.Test process is simple to operate, and device facilitates peace to tear open, accurately determines very much
The thermal conductivity factor of frozen soil under specified temp.
Claims (4)
- A kind of 1. thermal conductivity of frozen soils measure device of controllable temperature, it is characterised in that：It includes interior lucite cylinder（1）, be located at Interior lucite cylinder（1）Outside outer lucite cylinder（2）, located at interior lucite cylinder（1）The upper thermostated cooling bath disk on top（4） With located at interior lucite cylinder（1）With outer lucite cylinder（2）The lower thermostated cooling bath disk of bottom（6）And for installing lower constant temperature Cryostat dish（6）Metallic support（12）, the interior lucite cylinder（1）With outer lucite cylinder（2）Vacuum sealing between the two, Form the sleeve that can be incubated；The lower thermostated cooling bath disk（6）Soil sample to be measured is placed above, the soil sample upper surface to be measured is set There is Hot Wire Technique for Measuring thermal conductivity factor probe（9）, temperature sensor is embedded with the soil sample to be measured（15）；The upper thermostated cooling bath Disk（4）It is provided with the circulation body lotion import of upper thermostated cooling bath disk（7）With the outlet of upper thermostated cooling bath disk circulation body lotion（8）, the lower perseverance Warm cryostat dish（6）It is provided with the circulation body lotion import of lower thermostated cooling bath disk（10）With the outlet of lower thermostated cooling bath disk circulation body lotion（11）.
- 2. a kind of thermal conductivity of frozen soils measure device of controllable temperature according to claim 1, it is characterized in that：The upper constant temperature Cryostat dish（4）It is provided with temperature sensor import（14）With top plate handle（3）.
- 3. a kind of thermal conductivity of frozen soils measure device of controllable temperature according to claim 1, it is characterized in that：It is described outer organic Glass infuser（2）Outside is provided with the metal support for playing integrated support effect（13）.
- 4. a kind of thermal conductivity of frozen soils measure device of controllable temperature according to claim 1, it is characterized in that：It is cold in upper constant temperature Bath（4）Upper plane has the cutting for the circulation of constant temperature body lotion, the upper thermostated cooling bath disk circulation body lotion import（7）With upper thermostated cooling bath The outlet of disk circulation body lotion（8）Butt up against thermostated cooling bath disk（4）On notch；The lower thermostated cooling bath disk（6）On also plane have confession The cutting of constant temperature body lotion circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720673788.1U CN206788079U (en) | 2017-06-12 | 2017-06-12 | A kind of thermal conductivity of frozen soils measure device of controllable temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720673788.1U CN206788079U (en) | 2017-06-12 | 2017-06-12 | A kind of thermal conductivity of frozen soils measure device of controllable temperature |
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| Publication Number | Publication Date |
|---|---|
| CN206788079U true CN206788079U (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720673788.1U Expired - Fee Related CN206788079U (en) | 2017-06-12 | 2017-06-12 | A kind of thermal conductivity of frozen soils measure device of controllable temperature |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320249A (en) * | 2019-07-12 | 2019-10-11 | 中国农业大学 | A kind of frozen soil flow of water measuring device and method |
| CN113188483A (en) * | 2021-01-28 | 2021-07-30 | 苏州中正工程检测有限公司 | Heat conduction detection equipment capable of automatically detecting flatness |
-
2017
- 2017-06-12 CN CN201720673788.1U patent/CN206788079U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320249A (en) * | 2019-07-12 | 2019-10-11 | 中国农业大学 | A kind of frozen soil flow of water measuring device and method |
| CN110320249B (en) * | 2019-07-12 | 2020-08-28 | 中国农业大学 | Frozen soil water potential measuring method |
| CN113188483A (en) * | 2021-01-28 | 2021-07-30 | 苏州中正工程检测有限公司 | Heat conduction detection equipment capable of automatically detecting flatness |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20200612 |