CN112924339B - Heat conductivity coefficient measuring device suitable for coarse-grained soil - Google Patents
Heat conductivity coefficient measuring device suitable for coarse-grained soil Download PDFInfo
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- CN112924339B CN112924339B CN202110161168.0A CN202110161168A CN112924339B CN 112924339 B CN112924339 B CN 112924339B CN 202110161168 A CN202110161168 A CN 202110161168A CN 112924339 B CN112924339 B CN 112924339B
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- 239000002689 soil Substances 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 117
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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Abstract
The invention discloses a heat conductivity coefficient measuring device suitable for coarse-grained soil, which relates to the technical field of heat conductivity coefficient measurement and aims at solving the problems that the existing heat conductivity measuring device cannot simultaneously test heat conductivity coefficients of materials with various specifications so that the working efficiency is low and the heat conductivity of the heat conductivity measuring device is not uniform enough. The device has a novel structure, can be used for simultaneously testing the heat conductivity coefficients of materials with various specifications, improves the testing efficiency, enables the heat conductivity of the heat conductivity measuring device to be more uniform, can effectively improve the measuring precision and is convenient to use.
Description
Technical Field
The invention relates to the technical field of heat conductivity coefficient measurement, in particular to a heat conductivity coefficient measurement device suitable for coarse-grained soil.
Background
The thermal conductivity is related to factors such as composition structure, density, water content, temperature and the like of the material, the thermal conductivity is small for the material with a non-crystal structure and low density, and when the water content and the temperature of the material are low, the thermal conductivity is small, the material with the low thermal conductivity is generally called a thermal insulation material, and the material with the thermal conductivity below 0.05W/m is called a high-efficiency thermal insulation material.
The existing coarse-grained soil is widely applied, the heat conductivity coefficient of the coarse-grained soil needs to be measured in the using process, the existing heat conductivity coefficient measuring device can only test one specification of the coarse-grained soil in the using process and cannot simultaneously test the heat conductivity coefficients of multiple specifications of materials, so that the working efficiency is low, and the test result is not accurate due to the fact that the existing heat conducting device conducts heat unevenly in the heat conducting process, and therefore the heat conductivity coefficient measuring device suitable for the coarse-grained soil is provided for solving the problems.
Disclosure of Invention
The heat conductivity coefficient measuring device suitable for coarse-grained soil provided by the invention solves the problems that the heat conductivity coefficient measuring device cannot simultaneously test the heat conductivity coefficients of materials with various specifications, so that the working efficiency is lower and the heat conductivity of the heat conductivity measuring device is not uniform enough.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a coefficient of heat conductivity survey device suitable for coarse grain soil, includes the workstation, the support frame is installed on the top of workstation, the circumference lateral wall cover of support frame is equipped with first test bucket and second test bucket, the top of workstation is provided with first constant temperature heating cabinet and second constant temperature heating cabinet, first constant temperature heating cabinet and second constant temperature heating cabinet are located the both sides of support frame respectively, be provided with pipeline between first constant temperature heating cabinet and the second constant temperature heating cabinet, pipeline's both ends all pass the inside that the support frame extends to first constant temperature heating cabinet and second constant temperature heating cabinet, the inside of first test bucket and second test bucket is provided with the sample collecting vessel, the outer wall of first test bucket and second test bucket is provided with temperature sensor.
Preferably, the inside of sample collection bucket is provided with the sealing plug, the one end of sealing plug is passed the sample collection bucket and is extended to externally mounted and have the stopper, the fixture block is installed to the one end of stopper, the inside of first test bucket and second test bucket is provided with the draw-in groove, draw-in groove and fixture block phase-match.
Preferably, one end of the first testing barrel and one end of the second testing barrel are provided with spiral sealing covers, and the spiral sealing covers are matched with the first testing barrel and the second testing barrel.
Preferably, the lateral wall of first test bucket and second test bucket is provided with the hinge, the one end of hinge is connected with first test bucket, the one end that first test bucket was kept away from to the hinge is connected with second test bucket.
Preferably, the fixed plate is installed to the one end of first test bucket and second test bucket, the top of fixed plate is provided with the threaded rod, the one end of threaded rod passes the fixed plate and extends to the outside, the bottom of fixed plate is provided with the nut, nut and threaded rod phase-match.
Preferably, the supporting block is installed at the bottom end of the workbench, universal wheels are arranged at the bottom end of the supporting block, locking mechanisms are arranged on the universal wheels, a containing box is arranged inside the workbench, the containing box penetrates through the workbench and extends to the outside, a handle is arranged on the outer wall of the supporting block, and the handle is connected with the outer wall of the containing box.
Preferably, the top of workstation is provided with control panel, one side of control panel is provided with the display.
Preferably, the one end of temperature sensor passes first test bucket and second test bucket respectively and extends to inside the sample collecting vessel, all be provided with the measuring aperture on first test bucket, second test bucket and the sample collecting vessel, measuring aperture and first test bucket, second test bucket and sample collecting vessel phase-match, temperature sensor's model is ATE300.
The invention has the beneficial effects that:
1. through the leading-in sample collecting barrel of coarse grain soil sample with the collection, then seal the sample collecting barrel through the sealing plug, then carry on spacingly to the sealing plug through the stopper, it is difficult to take out to prevent that the sealing plug from being absorbed in the sample collecting barrel, then place the sample collecting barrel in first test bucket and second test bucket, then block the card in the draw-in groove with the fixture block, thereby can effectually align the measuring orifice in the sample collecting barrel with the measuring orifice in first test bucket and the second test bucket through fixture block and draw-in groove, reduce the alignment time, and can carry out the coefficient of heat conductivity test to multiple specification material simultaneously, and the efficiency of software testing is improved.
2. Seal first test bucket and second test bucket through the spiral seal lid, then inject temperature sensor in the sample collection bucket through the measuring port, and the degree of depth that temperature sensor injects differs, the first temperature sensor in the left side injects the bottom of sample collection bucket, the second temperature sensor in the left side injects the middle position to the next point in the middle of the sample collection bucket, then the third temperature sensor in the left side injects the middle position to the one point that makes progress of sample collection bucket, and the last inside top of injecting the sample collection bucket in the left side, thereby depth of measurement forms degressive mode in proper order and measures, and the heating method is circular heating, thereby make heat conduction determination device heat conduction more even.
3. Open first constant temperature heating cabinet and second constant temperature heating cabinet through control panel to can effectually preheat pipeline and support frame, thereby can effectual improvement measurement accuracy.
4. Through testing bucket and second test bucket card on the support frame, then inject the threaded rod in the fixed plate, then fix two fixed plates through the nut, then convey the temperature of measurement to control panel through temperature sensor in, then show through the display.
In conclusion, the device can be used for testing the heat conductivity coefficients of various specifications of materials at the same time, the testing efficiency is improved, the heat conduction of the heat conduction testing device is more uniform, the measuring precision can be effectively improved, and the use is convenient.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a structural sectional view of the present invention.
FIG. 3 is a schematic structural diagram of the test bucket of the present invention.
Fig. 4 is a front view showing the structure of the test bucket according to the present invention.
Fig. 5 is a structural sectional view of the test bucket of the present invention.
Fig. 6 is an enlarged schematic view of the structure at a in fig. 5 according to the present invention.
Fig. 7 is an enlarged view of the structure at B in fig. 5 according to the present invention.
The reference numbers in the figures: 1. a work table; 2. a support block; 3. a universal wheel; 4. a storage box; 5. a first constant temperature heating tank; 6. a delivery conduit; 7. a second constant temperature heating box; 8. a support frame; 9. a first test bucket; 10. a sample collection barrel; 11. a temperature sensor; 12. a spiral sealing cover; 13. a second test bucket; 14. a hinge; 15. a fixing plate; 16. a threaded rod; 17. a sealing plug; 18. a limiting block; 19. a clamping block; 20. a card slot; 21. measuring a hole; 22. a handle; 23. a display; 24. a control panel; 25. and a nut.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the type of the electrical appliance provided by the invention is only used for reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, specific meanings of the above terms in the present invention can be understood in specific situations.
Referring to fig. 1 to 7, a thermal conductivity measuring device suitable for coarse-grained soil includes a workbench 1, a support frame 8 is installed at the top end of the workbench 1, a first testing barrel 9 and a second testing barrel 13 are sleeved on the circumferential side wall of the support frame 8, a first constant-temperature heating box 5 and a second constant-temperature heating box 7 are arranged at the top end of the workbench 1, the first constant-temperature heating box 5 and the second constant-temperature heating box 7 are respectively located at two sides of the support frame 8, a conveying pipeline 6 is arranged between the first constant-temperature heating box 5 and the second constant-temperature heating box 7, two ends of the conveying pipeline 6 penetrate through the support frame 8 and extend to the inside of the first constant-temperature heating box 5 and the second constant-temperature heating box 7, a sample collecting barrel 10 is arranged inside the first testing barrel 9 and the second testing barrel 13, a temperature sensor 11 is arranged on the outer walls of the first testing barrel 9 and the second testing barrel 13, a clamping groove 17 is arranged inside the sample collecting barrel 10, a first testing block 19 is arranged at one end of the first testing barrel 9 and a second testing barrel 13, a second testing block 13 is arranged on the inner wall of the second testing barrel 9, a sealing plug 12 is arranged on the second testing barrel 9, a first testing barrel 13 is arranged on the testing barrel 9, a second testing plug 14 and a second testing plug 13 connected with a second testing barrel 9, a second testing plug 14, a second testing plug 13, a first testing plug 14 connected with a first testing barrel 9, a second testing plug 14, a second testing plug 13, a second testing plug 12 connected with a first testing barrel 9 and a second testing plug 13, a second testing plug 13 connected with a second testing barrel 9, a second testing plug 14, the top of fixed plate 15 is provided with threaded rod 16, the one end of threaded rod 16 is passed fixed plate 15 and is extended to the outside, the bottom of fixed plate 15 is provided with nut 25, nut 25 and threaded rod 16 phase-match, supporting shoe 2 is installed to the bottom of workstation 1, the bottom of supporting shoe 2 is provided with universal wheel 3, be provided with locking mechanism on the universal wheel 3, the inside of workstation 1 is provided with containing box 4, containing box 4 passes workstation 1 and extends to the outside, the outer wall of supporting shoe 2 is provided with handle 22, handle 22 is connected with the outer wall of containing box 4, the top of workstation 1 is provided with control panel 24, one side of control panel 24 is provided with display 23, the one end of temperature sensor 11 is passed first test bucket 9 and second test bucket 13 respectively and is extended to inside sample collection bucket 10, all be provided with measuring aperture 21 on first test bucket 9, second test bucket 13 and the sample collection bucket 10, measuring aperture 21 and first test bucket 9, second test bucket 13 and the sample collection bucket 10 phase-match, the model of temperature sensor 11 is 300 ATE.
The working principle is as follows: when the device is used, the device is moved to a proper position through the universal wheel 3, then a collected coarse-grained soil sample is guided into the sample collecting barrel 10, then the sample collecting barrel 10 is sealed through the sealing plug 17, then the sealing plug 17 is limited through the limiting block 18, the sealing plug 17 is prevented from being sunk into the sample collecting barrel 10 and being difficult to take out, then the sample collecting barrel 10 is placed in the first testing barrel 9 and the second testing barrel 13, then the clamping block 19 is clamped in the clamping groove 20, so that the measuring holes 21 in the sample collecting barrel 10 can be effectively aligned with the measuring holes 21 in the first testing barrel 9 and the second testing barrel 13 through the clamping block 19 and the clamping groove 20, then the first testing barrel 9 and the second testing barrel 13 are sealed through the spiral sealing cover 12, then the temperature sensor 11 is inserted into the sample collecting barrel 10 through the measuring holes 21, and the depths of the temperature sensors 11 are different, the first temperature sensor 11 on the left is inserted into the bottom end of the sample collection barrel 10, the second temperature sensor 11 on the left is inserted into the middle of the sample collection barrel 10 and a little downward, then the third temperature sensor 11 on the left is inserted into the middle of the sample collection barrel 10 and a little upward, and the last one on the left is inserted into the top end of the sample collection barrel 10, so that the measuring depth is measured in a gradually decreasing manner, thereby improving the measuring accuracy, then the first constant temperature heating box 5 and the second constant temperature heating box 7 are opened through the control panel 24, thereby effectively preheating the conveying pipeline 6 and the support frame 8, thereby effectively improving the measuring accuracy, then the first testing barrel 9 and the second testing barrel 13 are clamped on the support frame 8, then the threaded rod 16 is inserted into the fixing plate 15, and then the two fixing plates 15 are fixed through the nut 25, the measured temperature is then transmitted to the control panel 24 through the temperature sensor 11 and then displayed through the display 23.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (6)
1. The heat conductivity coefficient measuring device suitable for the coarse-grained soil comprises a workbench (1) and is characterized in that a support frame (8) is installed at the top end of the workbench (1), a first testing barrel (9) and a second testing barrel (13) are sleeved on the circumferential side wall of the support frame (8), a first constant-temperature heating box (5) and a second constant-temperature heating box (7) are arranged at the top end of the workbench (1), the first constant-temperature heating box (5) and the second constant-temperature heating box (7) are respectively located on two sides of the support frame (8), a conveying pipeline (6) is arranged between the first constant-temperature heating box (5) and the second constant-temperature heating box (7), two ends of the conveying pipeline (6) penetrate through the support frame (8) and extend to the interiors of the first constant-temperature heating box (5) and the second constant-temperature heating box (7), a sample collecting barrel (10) is arranged in the interiors of the first testing barrel (9) and the second testing barrel (13), and a temperature sensor (11) is arranged on the outer wall of the first testing barrel (9) and the second testing barrel (13);
a sealing plug (17) is arranged in the sample collecting barrel (10), one end of the sealing plug (17) penetrates through the sample collecting barrel (10) and extends to the outside to be provided with a limiting block (18), one end of the limiting block (18) is provided with a clamping block (19), clamping grooves (20) are arranged in the first testing barrel (9) and the second testing barrel (13), and the clamping grooves (20) are matched with the clamping block (19);
one end of the temperature sensor (11) penetrates through the first testing barrel (9) and the second testing barrel (13) respectively and extends to the interior of the sample collecting barrel (10), measuring holes (21) are formed in the first testing barrel (9), the second testing barrel (13) and the sample collecting barrel (10), and the measuring holes (21) are matched with the first testing barrel (9), the second testing barrel (13) and the sample collecting barrel (10).
2. The thermal conductivity measurement device for coarse-grained soil according to claim 1, wherein one end of the first testing barrel (9) and one end of the second testing barrel (13) are provided with spiral sealing covers (12), and the spiral sealing covers (12) are matched with the first testing barrel (9) and the second testing barrel (13).
3. The device for measuring the thermal conductivity coefficient of the coarse-grained soil is characterized in that hinges (14) are arranged on the side walls of the first testing barrel (9) and the second testing barrel (13), one end of each hinge (14) is connected with the first testing barrel (9), and the end, far away from the first testing barrel (9), of each hinge (14) is connected with the second testing barrel (13).
4. The thermal conductivity measurement device for coarse-grained soil according to claim 1, wherein a fixing plate (15) is installed at one end of each of the first testing barrel (9) and the second testing barrel (13), a threaded rod (16) is arranged at the top end of each fixing plate (15), one end of each threaded rod (16) extends to the outside through each fixing plate (15), a nut (25) is arranged at the bottom end of each fixing plate (15), and each nut (25) is matched with each threaded rod (16).
5. The device for measuring the heat conductivity coefficient of the coarse-grained soil suitable for the coarse-grained soil according to claim 1, wherein a supporting block (2) is installed at the bottom end of the workbench (1), universal wheels (3) are arranged at the bottom end of the supporting block (2), locking mechanisms are arranged on the universal wheels (3), a containing box (4) is arranged inside the workbench (1), the containing box (4) penetrates through the workbench (1) to extend to the outside, a handle (22) is arranged on the outer wall of the supporting block (2), and the handle (22) is connected with the outer wall of the containing box (4).
6. The thermal conductivity measuring device for coarse-grained soil according to claim 1, characterized in that a control panel (24) is arranged at the top end of the worktable (1), and a display (23) is arranged on one side of the control panel (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110161168.0A CN112924339B (en) | 2021-02-05 | 2021-02-05 | Heat conductivity coefficient measuring device suitable for coarse-grained soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110161168.0A CN112924339B (en) | 2021-02-05 | 2021-02-05 | Heat conductivity coefficient measuring device suitable for coarse-grained soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112924339A CN112924339A (en) | 2021-06-08 |
| CN112924339B true CN112924339B (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110161168.0A Expired - Fee Related CN112924339B (en) | 2021-02-05 | 2021-02-05 | Heat conductivity coefficient measuring device suitable for coarse-grained soil |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8220989B1 (en) * | 2009-09-30 | 2012-07-17 | The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration | Method and apparatus for measuring thermal conductivity of small, highly insulating specimens |
| CN105044147B (en) * | 2015-07-10 | 2018-01-05 | 中国矿业大学 | A kind of nearly phase change zone thermal conductivity of frozen soils measure apparatus and method |
| CN108693209B (en) * | 2017-04-07 | 2021-04-13 | 核工业北京地质研究院 | Device and method for measuring heat conductivity coefficient of buffer/backfill material |
| CN108107072A (en) * | 2017-12-06 | 2018-06-01 | 河海大学 | A kind of soil body Determination of conductive coefficients method and experimental rig |
| CN110320234B (en) * | 2019-08-09 | 2024-08-02 | 天津城建大学 | Air extraction type soil body heat conductivity coefficient measuring device and implementation method |
| CN210604475U (en) * | 2019-09-16 | 2020-05-22 | 广东华宸建设工程质量检测有限公司 | Heat conductivity coefficient testing device |
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