CN112924339B - A thermal conductivity measuring device suitable for coarse-grained soil - Google Patents

Abstract

The invention discloses a thermal conductivity measuring device suitable for coarse-grained soil, and relates to the technical field of thermal conductivity measuring. Since the existing thermal conductivity measuring device cannot perform thermal conductivity testing on materials of various specifications at the same time, the work efficiency is low and the thermal conductivity is low. The problem that the heat conduction of the measuring device is not uniform is proposed. The following solution is proposed, which includes a workbench, a support frame is installed at the top of the workbench, and a first test barrel and a second test barrel are sleeved on the circumferential side wall of the support frame. The top of the workbench is provided with a first constant temperature heating box and a second constant temperature heating box, and the first constant temperature heating box and the second constant temperature heating box are respectively located on both sides of the support frame. The present invention has a novel structure, and the device can simultaneously test the thermal conductivity of various specifications of materials, thereby improving the test efficiency, and at the same time, the thermal conductivity measuring device conducts heat more uniformly, and can effectively improve the measurement accuracy and is convenient to use.

Description

A thermal conductivity measuring device suitable for coarse-grained soil

technical field

The invention relates to the technical field of thermal conductivity measurement, in particular to a thermal conductivity measurement device suitable for coarse-grained soil.

Background technique

The thermal conductivity is related to the composition, density, moisture content, temperature and other factors of the material. Materials with an amorphous structure and low density have a small thermal conductivity, and when the moisture content and temperature of the material are low, the thermal conductivity is small, usually The material with lower thermal conductivity is called thermal insulation material, and the material with thermal conductivity below 0.05W/m Celsius is called high-efficiency thermal insulation material.

However, the current coarse-grained soil is widely used, and the thermal conductivity of the coarse-grained soil needs to be measured in the process of use. However, the current thermal conductivity measuring device can only test the material of one specification during the use process. It is impossible to test the thermal conductivity of various specifications of materials at the same time, which makes the work efficiency low, and the current thermal conduction device does not conduct heat evenly in the process of thermal conduction, which makes the test results inaccurate. Therefore, in order to solve such problems, we propose A thermal conductivity measuring device suitable for coarse-grained soil is presented.

SUMMARY OF THE INVENTION

The invention provides a thermal conductivity measuring device suitable for coarse-grained soil, which solves the problems that the thermal conductivity measuring device cannot perform thermal conductivity testing on various specifications of materials at the same time, resulting in low working efficiency and uneven heat conduction of the thermal conductivity measuring device.

In order to achieve the above object, the present invention adopts the following technical solutions:

A thermal conductivity measuring device suitable for coarse-grained soil includes a workbench, a support frame is installed at the top of the workbench, and a first test barrel and a second test barrel are sleeved on the circumferential side wall of the support frame, so the The top of the workbench is provided with a first constant temperature heating box and a second constant temperature heating box, the first constant temperature heating box and the second constant temperature heating box are respectively located on both sides of the support frame, the first constant temperature heating box and the second constant temperature heating box A conveying pipeline is arranged between the constant temperature heating boxes, and both ends of the conveying pipeline extend through the support frame to the inside of the first constant temperature heating box and the second constant temperature heating box, and the first test barrel and the second test barrel are A sample collection barrel is arranged inside, and temperature sensors are arranged on the outer walls of the first test barrel and the second test barrel.

Preferably, a sealing plug is arranged inside the sample collection barrel, one end of the sealing plug extends through the sample collection barrel to the outside to install a limit block, one end of the limit block is installed with a clamping block, the first The inside of the test barrel and the second test barrel are provided with card slots, and the card slots are matched with the card blocks.

Preferably, one end of the first test barrel and the second test barrel is provided with a screw sealing cover, and the screw sealing cover is matched with the first test barrel and the second test barrel.

Preferably, the side walls of the first test barrel and the second test barrel are provided with hinges, one end of the hinge is connected to the first test barrel, and one end of the hinge away from the first test barrel is connected to the second test barrel. Test buckets are connected.

Preferably, a fixing plate is installed at one end of the first test barrel and the second test barrel, a threaded rod is provided at the top of the fixing plate, and one end of the threaded rod extends to the outside through the fixing plate, and the fixing plate The bottom end is provided with a nut, and the nut is matched with the threaded rod.

Preferably, a support block is installed at the bottom end of the workbench, a universal wheel is set at the bottom end of the support block, a locking mechanism is set on the universal wheel, and a storage box is set inside the workbench , the storage box extends to the outside through the workbench, the outer wall of the support block is provided with a handle, and the handle is connected with the outer wall of the storage box.

Preferably, the top of the workbench is provided with a control panel, and one side of the control panel is provided with a display.

Preferably, one end of the temperature sensor extends to the inside of the sample collection barrel through the first test barrel and the second test barrel respectively, and the first test barrel, the second test barrel and the sample collection barrel are all provided with measurement holes, The measuring hole is matched with the first test barrel, the second test barrel and the sample collection barrel, and the model of the temperature sensor is ATE300.

The beneficial effects of the present invention are:

1. Introduce the collected coarse-grained soil samples into the sample collection bucket, then seal the sample collection bucket through the sealing plug, and then limit the sealing plug through the limit block to prevent the sealing plug from sinking into the sample collection bucket and difficult to take out. Then place the sample collection bucket in the first test bucket and the second test bucket, and then clamp the clamping block in the clamping slot, so that the measuring hole in the sample collection bucket can be effectively connected with the first test through the clamping block and the clamping slot. The measurement holes in the barrel and the second test barrel are aligned, which reduces the alignment time, and can simultaneously conduct thermal conductivity tests on materials of various specifications, which improves the test efficiency.

2. Seal the first test barrel and the second test barrel through the screw sealing cover, and then insert the temperature sensor into the sample collection barrel through the measuring hole, and the depth of the temperature sensor insertion varies. The first temperature sensor on the left is inserted into the sample collection barrel. Insert the second temperature sensor on the left into the bottom of the sample collection barrel, insert the second temperature sensor on the left into the middle of the sample collection barrel, and then insert the third temperature sensor on the left into the middle of the sample collection barrel, and insert the last temperature sensor on the left. Enter the top inside of the sample collection barrel, so that the measurement depth is measured in a descending manner, and the heating method is circular heating, so that the thermal conductivity of the thermal conductivity measuring device is more uniform.

3. Turn on the first constant temperature heating box and the second constant temperature heating box through the control panel, so that the conveying pipeline and the support frame can be effectively preheated, so that the measurement accuracy can be effectively improved.

4. By clamping the first test barrel and the second test barrel on the support frame, then insert the threaded rod into the fixing plate, then fix the two fixing plates with nuts, and then transmit the measured temperature to the control panel, and then display it on the monitor.

To sum up, the device can simultaneously test the thermal conductivity of various specifications of materials, and improves the test efficiency, and at the same time makes the thermal conductivity measuring device more uniform in heat conduction, and can effectively improve the measurement accuracy and is convenient to use.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a cross-sectional view of the structure of the present invention.

FIG. 3 is a schematic structural diagram of a test bucket of the present invention.

FIG. 4 is a front view of the structure of the test barrel of the present invention.

FIG. 5 is a cross-sectional view of the structure of the test bucket of the present invention.

FIG. 6 is an enlarged schematic view of the structure at A in FIG. 5 of the present invention.

FIG. 7 is an enlarged schematic view of the structure at B in FIG. 5 of the present invention.

Labels in the figure: 1. Workbench; 2. Support block; 3. Universal wheel; 4. Storage box; 5. First constant temperature heating box; 6. Conveying pipeline; 7. Second constant temperature heating box; ; 9, the first test barrel; 10, the sample collection barrel; 11, the temperature sensor; 12, the screw sealing cover; 13, the second test barrel; 14, the hinge; 15, the fixing plate; 16, the threaded rod; 17, the seal plug; 18, limit block; 19, block; 20, card slot; 21, measuring hole; 22, handle; 23, display; 24, control panel; 25, nut.

Detailed ways

In order to make the technical means, creative features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below with reference to the specific embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation are therefore not to be construed as limitations of the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "arranged" should be understood in a broad sense, for example, it may be fixedly connected, arranged, or Removably connected, set, or integrally connected and set; the model of the electrical appliance provided in the present invention is for reference only. For those of ordinary skill in the art, different types of electrical appliances with the same function can be replaced according to the actual use situation, and for those of ordinary skill in the art, they can understand the specific meanings of the above terms in the present invention under specific circumstances.

1-7, a thermal conductivity measuring device suitable for coarse-grained soil includes a workbench 1, a support frame 8 is installed on the top of the workbench 1, and the circumferential side wall of the support frame 8 is sleeved with a first A test barrel 9 and a second test barrel 13, the top of the workbench 1 is provided with a first constant temperature heating box 5 and a second constant temperature heating box 7, the first constant temperature heating box 5 and the second constant temperature heating box 7 are respectively Located on both sides of the support frame 8, a conveying pipe 6 is provided between the first constant temperature heating box 5 and the second constant temperature heating box 7, and both ends of the conveying pipe 6 extend through the support frame 8 to the first constant temperature Inside the heating box 5 and the second constant temperature heating box 7, the first test barrel 9 and the second test barrel 13 are provided with a sample collection barrel 10, and the outer walls of the first test barrel 9 and the second test barrel 13 A temperature sensor 11 is provided, and a sealing plug 17 is provided inside the sample collection barrel 10. One end of the sealing plug 17 extends through the sample collection barrel 10 to the outside where a limit block 18 is installed, and one end of the limit block 18 is installed A clamping block 19 is installed, the first test barrel 9 and the second test barrel 13 are provided with a card slot 20 inside, and the card slot 20 is matched with the card block 19. The first test barrel 9 and the second test barrel One end of the barrel 13 is provided with a screw sealing cover 12, the screw sealing cover 12 is matched with the first test barrel 9 and the second test barrel 13, and the side walls of the first test barrel 9 and the second test barrel 13 are provided with A hinge 14, one end of the hinge 14 is connected with the first test barrel 9, and one end of the hinge 14 away from the first test barrel 9 is connected with the second test barrel 13, the first test barrel 9 and One end of the second test barrel 13 is installed with a fixing plate 15 , the top end of the fixing plate 15 is provided with a threaded rod 16 , one end of the threaded rod 16 extends to the outside through the fixing plate 15 , and the bottom end of the fixing plate 15 is A nut 25 is provided, the nut 25 is matched with the threaded rod 16, a support block 2 is installed at the bottom end of the workbench 1, and a universal wheel 3 is arranged at the bottom end of the support block 2. The universal wheel 3 is provided with a locking mechanism, the inside of the workbench 1 is provided with a storage box 4, the storage box 4 extends through the workbench 1 to the outside, the outer wall of the support block 2 is provided with a handle 22, the handle 22 is connected with the outer wall of the storage box 4, the top of the workbench 1 is provided with a control panel 24, one side of the control panel 24 is provided with a display 23, and one end of the temperature sensor 11 passes through the first test barrel respectively 9 and the second test barrel 13 extend into the sample collection barrel 10, the first test barrel 9, the second test barrel 13 and the sample collection barrel 10 are all provided with measurement holes 21, and the measurement holes 21 are connected with the first test barrel 10. The barrel 9, the second test barrel 13 and the sample collection barrel 10 are matched, and the model of the temperature sensor 11 is ATE300.

Working principle: When the device is in use, the device is first moved to a suitable position through the universal wheel 3, and then the collected coarse-grained soil samples are introduced into the sample collection barrel 10, and then the sample collection barrel 10 is sealed by the sealing plug 17. , and then limit the sealing plug 17 through the limit block 18 to prevent the sealing plug 17 from sinking into the sample collection barrel 10 and difficult to take out, and then place the sample collection barrel 10 in the first test barrel 9 and the second test barrel 13, and then The clamping block 19 is clamped in the clamping slot 20, so that the measurement hole 21 in the sample collection bucket 10 can be effectively connected with the measurement hole 21 in the first test bucket 9 and the second test bucket 13 through the clamping block 19 and the clamping slot 20 Align, then seal the first test barrel 9 and the second test barrel 13 through the screw sealing cover 12, and then insert the temperature sensor 11 into the sample collection barrel 10 through the measurement hole 21, and the temperature sensor 11 is inserted to a different depth. First, 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 the third temperature sensor 11 on the left is inserted into the sample The middle of the collection bucket 10 is a little upwards, and the last one on the left is inserted into the innermost top of the sample collection bucket 10, so that the measurement depth is measured in a descending manner, so that the measurement accuracy can be improved, and then the first one is turned on through the control panel 24. The constant temperature heating box 5 and the second constant temperature heating box 7 can effectively preheat the conveying pipeline 6 and the support frame 8, so as to effectively improve the measurement accuracy, and then the first test barrel 9 and the second test barrel 13 are clamped. On the support frame 8, then insert the threaded rod 16 into the fixing plate 15, and then fix the two fixing plates 15 through the nut 25, and then transmit the measured temperature to the control panel 24 through the temperature sensor 11, and then through the display. 23 to display.

While the basic principles and main features and advantages of the present invention have been shown and described above, it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but without departing from the spirit or essential aspects of the present invention. In the case of the characteristic features, the present invention can be implemented in other specific forms. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

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).

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