High-performance infrared imaging device for detecting pore size of foam material

Abstract

The utility model discloses a high-performance infrared imaging device for foam material pore dimension detection, which comprises an experiment cylinder, the outer surface of the upper end of the experiment cylinder is in threaded connection with a cylinder cover, the middle parts of the outer surfaces of the two sides of the experiment cylinder are fixedly provided with fixing blocks, the outer surfaces of the upper ends of the fixing blocks are fixedly provided with supporting columns, and the supporting columns are fixedly provided with supporting columns. Two groups of connecting plates are fixedly mounted on the outer surface of the upper end of the supporting column, a thermal imager is fixedly mounted between the two groups of connecting plates, an infrared window is formed in the middle of the outer surface of the upper end of the barrel cover, the thermal imager is located right above the infrared window, an objective table is arranged in the middle of an inner cavity of the experiment barrel, and the objective table is located right above the thermal imager. An adjustable thermocouple and a fixed thermocouple are arranged on the periphery of the objective table. According to the high-performance infrared imaging device for detecting the pore size of the foam material, disclosed by the utility model, the infrared radiation characteristics of a rib framework of the foam material can be clearly observed.

Description

Technical Field

[0001] The utility model relates to the technical field of foam material pore scale detection, in particular to a high-performance infrared imaging device for foam material pore scale detection. Background Art

[0002] The performance of foam materials is closely related to their pore size, which directly affects the foam's stability, fluidity, and performance in specific applications. By measuring pore size, we can better understand the behavior of foam materials in porous media and optimize their design and application.

[0003] The existing technology lacks equipment that can clearly observe the infrared radiation characteristics of the rib skeleton of foam materials. To this end, we propose a high-performance infrared imaging device for foam material pore scale detection. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the deficiencies of the prior art, the present invention provides a high-performance infrared imaging device for detecting the pore size of foam materials, which can clearly observe the infrared radiation characteristics of the rib skeleton of the foam material and effectively solve the problems in the background technology.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a high-performance infrared imaging device for detecting the pore scale of foam materials, comprising an experimental cylinder, a cylinder cover is threadedly connected to the outer surface of the upper end of the experimental cylinder, a fixed block is fixedly installed in the middle of the outer surfaces of both sides of the experimental cylinder, a support column is fixedly installed on the outer surface of the upper end of the fixed block, a connecting plate is fixedly installed on the outer surface of the upper end of the support column, there are two groups of connecting plates, a thermal imager is fixedly installed between the two groups of connecting plates, an infrared window is provided in the middle of the outer surface of the upper end of the cylinder cover, and the thermal imager is located directly above the infrared window, a loading platform is provided in the middle of the inner cavity of the experimental cylinder, an adjustable thermocouple and a fixed thermocouple are provided on the periphery of the loading platform, a heating tube is installed at the bottom of the inner cavity of the experimental cylinder, a support foot is fixedly installed on the outer surface of the lower end of the experimental cylinder, and an air valve is fixedly installed on one side of the outer surface of the upper end of the cylinder cover.

[0008] Preferably, a side heat insulation layer is fixedly installed on the inner wall of the experimental cylinder, and a metal screen is fixedly installed on the inner wall of the side heat insulation layer.

[0009] Preferably, a bottom insulation layer is fixedly installed on the bottom of the inner cavity of the experimental cylinder.

[0010] Preferably, the number of the heating tubes is three groups, and the three groups of heating tubes are equidistantly distributed on the periphery of the stage.

[0011] Preferably, the number of the adjustable thermocouples is two groups, and the number of the fixed thermocouples is one group.

[0012] Preferably, the outer surface of the lower end of the lower support column is fixedly connected to the middle of the lower end of the inner cavity of the experimental tube, an internal threaded hole is opened on the outer surface of the upper end of the lower support column, and the screw is fixedly installed on the outer surface of the lower end of the loading plate, and the outer wall of the screw and the internal threaded hole are threadedly connected.

[0013] (3) Beneficial effects

[0014] Compared with the existing technology, the present invention provides a high-performance infrared imaging device for foam material pore size detection, which has the following beneficial effects:

[0015] 1. This high-performance infrared imaging device for foam material pore scale detection can clearly observe the infrared radiation characteristics of the foam material rib skeleton.

[0016] 2. This is a high-performance infrared imaging device for detecting the pore size of foam materials. The center of the heating chamber is the stage, and the bottom of the stage is connected with a screw. The height of the stage can be adjusted according to the sample specifications to keep the observed sample at the optimal imaging distance.

[0017] 3. This is a high-performance infrared imaging device for detecting the pore size of foam materials. The outer periphery of the heating tube adopts a copper metal screen, which is used to make the temperature uniformity in the entire cavity better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-performance infrared imaging device for foam material pore size detection in the utility model.

[0019] Figure 2 This is a schematic diagram of the partial structure of a high-performance infrared imaging device for detecting pore size of foam materials in the utility model.

[0020] Figure 3 This is a side cross-sectional view of an experimental tube in a high-performance infrared imaging device for detecting pore size of foam materials according to the present invention.

[0021] Figure 4 This is a schematic structural diagram of a stage in a high-performance infrared imaging device for detecting pore size of foam materials according to the present invention.

[0022] In the figure: 1. Experimental tube; 2. Support leg; 3. Fixing block; 4. Support column; 5. Connecting plate; 6. Thermal imager; 7. Tube cover; 8. Infrared window; 9. Air valve; 10. Metal screen; 11. Side insulation layer; 12. Bottom insulation layer; 13. Heating tube; 14. Adjustable thermocouple; 15. Fixed thermocouple; 16. Loading platform; 17. Lower support column; 18. Internal threaded hole; 19. Screw; 20. Loading plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] This embodiment is a high-performance infrared imaging device for detecting the pore size of foam materials.

[0025] like Figure 1-4 As shown, it includes an experimental cylinder 1, the outer surface of the upper end of the experimental cylinder 1 is threadedly connected to a cylinder cover 7, a fixed block 3 is fixedly installed in the middle of the outer surface of both sides of the experimental cylinder 1, a support column 4 is fixedly installed on the outer surface of the upper end of the fixed block 3, a connecting plate 5 is fixedly installed on the outer surface of the upper end of the support column 4, there are two groups of connecting plates 5, a thermal imager 6 is fixedly installed between the two groups of connecting plates 5, an infrared window 8 is provided in the middle of the outer surface of the upper end of the cylinder cover 7, and the thermal imager 6 is located directly above the infrared window 8, a stage 16 is provided in the middle of the inner cavity of the experimental cylinder 1, an adjustable thermocouple 14 and a fixed thermocouple 15 are provided on the periphery of the stage 16, a heating tube 13 is installed at the bottom of the inner cavity of the experimental cylinder 1, a support foot 2 is fixedly installed on the outer surface of the lower end of the experimental cylinder 1, and an air valve 9 is fixedly installed on one side of the outer surface of the upper end of the cylinder cover 7.

[0026] A side insulation layer 11 is fixedly installed on the inner wall of the experimental cylinder 1, and a metal screen 10 is fixedly installed on the inner wall of the side insulation layer 11; a bottom insulation layer 12 is fixedly installed on the bottom of the inner cavity of the experimental cylinder 1; there are three groups of heating tubes 13, and the three groups of heating tubes 13 are equidistantly distributed on the periphery of the stage 16; there are two groups of adjustable thermocouples 14, and there is one group of fixed thermocouples 15; the outer surface of the lower end of the lower support column 17 is fixedly connected to the middle part of the lower end of the inner cavity of the experimental cylinder 1, and the internal threaded hole 18 is opened on the outer surface of the upper end of the lower support column 17, and the screw 19 is fixedly installed on the outer surface of the lower end of the loading plate 20, and the outer wall of the screw 19 and the internal threaded hole 18 are threadedly connected.

[0027] It should be noted that the present invention is a high-performance infrared imaging device for detecting the pore size of foam materials. The experimental device directly heats the sample in a confined space, and then uses a thermal imager 6 to collect images of the thermal performance of the sample through an infrared window 8. During the experiment, the sample is first placed on a carrier plate 20 in a carrier stage 16 inside the heating chamber. By adjusting the screw 19 of the carrier plate 20, the sample is placed at the optimal observation distance of the thermal imager 6. Then, the adjustable thermocouple 14 is adjusted to measure the internal temperature of the foam material, and the second cylinder cover is closed. 7. The air valve 9 is connected to an external pressure gauge and an air pump. Turn on the pressure gauge and the air pump. When the air pressure in the cavity reaches the experimental requirements, turn off the air pump, turn on the external temperature control box switch, set the experimental temperature by the control panel, and measure the temperature in the cavity by the temperature display instrument. When the set temperature is reached, turn on the thermal imager, adjust the bracket, and fine-tune the focus to observe the infrared image of the sample. The infrared radiation characteristics of the foam material rib skeleton can be clearly observed; the periphery of the stage 16 is 2 adjustable thermocouples 14 and 1 fixed thermocouple 15. The adjustable thermocouple 14 can be adjusted according to the actual temperature. The probe position can be adjusted according to the test needs to flexibly measure the sample temperature. The fixed thermocouple 15 fixes the temperature under the stage in the measuring device cavity. This temperature is used as the temperature feedback of the temperature control box to control the working state of the temperature control box. The heat source of the core heating cavity is 3 equal-power heating tubes 13, which are equidistantly distributed on the periphery of the stage. This can not only ensure uniform heating of the sample, but also reduce the influence of the heating tube itself on the observation results. The periphery of the heating tube adopts a copper metal screen 10. The function of the metal screen 10 is to make the temperature uniformity in the entire cavity better. The material itself The characteristics of high reflectivity and low emissivity, combined with the infrared window 8, can effectively reduce the impact of stray radiation on the observation results. High-density asbestos cloth is attached to the inner wall and bottom of the experimental tube 1 as the side insulation layer 11 and the bottom insulation layer 12, which can prevent the heat in the cavity from escaping, so that the temperature in the cavity is always at the experimental temperature during the experiment. The thermocouple is a K-type armored thermocouple with a maximum length of l = 172mm. Its temperature measurement range is -20 ~ 500 ° C, and the error within the range is ±2%. The end probe of the thermocouple can be adjusted according to the temperature measurement requirements.

[0028] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A high-performance infrared imaging device for detecting pore size of foam materials, comprising a test tube (1), characterized in that: The upper outer surface of the experimental tube (1) is threadedly connected to a tube cover (7), the middle of the outer surfaces of both sides of the experimental tube (1) is fixedly installed with a fixing block (3), the upper outer surface of the fixing block (3) is fixedly installed with a support column (4), the upper outer surface of the support column (4) is fixedly installed with a connecting plate (5), the number of the connecting plates (5) is two groups, and a thermal imager (6) is fixedly installed between the two groups of connecting plates (5), and a red The invention relates to a test tube (1) having an outer window (8), and the thermal imager (6) is located directly above the infrared window (8); a loading platform (16) is provided in the middle of the inner cavity of the test tube (1); an adjustable thermocouple (14) and a fixed thermocouple (15) are provided on the periphery of the loading platform (16); a heating tube (13) is installed at the bottom of the inner cavity of the test tube (1); a support foot (2) is fixedly installed on the outer surface of the lower end of the test tube (1); and an air valve (9) is fixedly installed on one side of the outer surface of the upper end of the tube cover (7).

2. The high-performance infrared imaging device for foam material pore size detection according to claim 1, characterized in that: A side heat insulating layer (11) is fixedly mounted on the inner wall of the experimental cylinder (1), and a metal screen (10) is fixedly mounted on the inner wall of the side heat insulating layer (11).

3. The high-performance infrared imaging device for foam material pore size detection according to claim 2, characterized in that: A bottom heat insulating layer (12) is fixedly installed at the bottom of the inner cavity of the experimental cylinder (1).

4. The high-performance infrared imaging device for foam material pore size detection according to claim 3, characterized in that: The number of the heating tubes (13) is three groups, and the three groups of heating tubes (13) are equidistantly distributed on the periphery of the loading platform (16).

5. The high-performance infrared imaging device for foam material pore size detection according to claim 4, characterized in that: The number of the adjustable thermocouples (14) is two groups, and the number of the fixed thermocouples (15) is one group.

6. The high-performance infrared imaging device for foam material pore size detection according to claim 5, characterized in that: The outer surface of the lower end of the lower support column (17) is fixedly connected to the middle of the lower end of the inner cavity of the experimental tube (1), the internal threaded hole (18) is opened on the outer surface of the upper end of the lower support column (17), and the screw (19) is fixedly installed on the outer surface of the lower end of the loading plate (20), and the outer wall of the screw (19) is threadedly connected to the internal threaded hole (18).

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