Device for testing thermal insulation performance of material

Abstract

The utility model belongs to the technical field of material performance testing, and discloses a material thermal insulation performance testing device which comprises a heating body, a first temperature measuring piece and a second temperature measuring piece, and the heating body is provided with an inner cavity; the monitoring end of the first temperature measuring piece extends into the inner cavity; the accommodating shell is provided with an accommodating cavity, and the heating body is arranged in the accommodating cavity, so that a to-be-tested material can be filled between the heating body and the cavity wall of the accommodating cavity; the monitoring end of the second temperature measuring piece penetrates through the containing shell and extends into the face, away from the heating body, of the to-be-measured material. The device is simple in structure, convenient to use and capable of testing the thermal insulation performance of to-be-tested materials in different forms.

Description

Technical Field

[0001] This utility model relates to the field of material performance testing technology, and in particular to a material thermal insulation performance testing device. Background Technology

[0002] The performance of thermal insulation materials is of paramount importance. In the current technology, the testing, analysis and comparison of the thermal insulation performance of materials usually requires professional institutions to conduct tests in order to obtain relatively accurate test results. This process is not only time-consuming, but also expensive.

[0003] Based on this, some self-made equipment exists for testing the thermal insulation performance of insulation materials. However, existing equipment is structurally complex, and it mainly targets the performance of a single material (such as soft materials as insulation surfaces, rigid materials as insulation boards, etc.). For example, equipment for testing rigid materials is difficult to insert into soft materials, making it unsuitable for testing and analyzing soft materials; similarly, equipment for testing soft materials is difficult to place into rigid materials, making it unsuitable for testing and analyzing rigid materials. Therefore, current equipment cannot quickly and flexibly test the thermal insulation performance of different types of materials, making it difficult to meet the actual needs of research and development and production. Utility Model Content

[0004] The purpose of this invention is to provide a material insulation performance testing device that can test the insulation performance of materials of different types.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A material insulation performance testing device, comprising:

[0007] A heating element having an inner cavity;

[0008] A first temperature measuring element, wherein the monitoring end of the first temperature measuring element extends into the inner cavity to monitor the heating temperature of the heating element;

[0009] The housing has a cavity, and the heating element is disposed in the cavity with a gap between it and the cavity wall, so that the material to be tested can be filled between the heating element and the cavity wall.

[0010] The second temperature measuring element has its monitoring end passing through the housing and extending into the side of the material to be tested that is away from the heating element.

[0011] In some embodiments, the heating element has an inner cavity, the heating element includes a plurality of heating walls that surround the inner cavity, and the heating walls are movable within the cavity to make the distance between the heating element and the cavity wall adjustable.

[0012] In some embodiments, multiple layers of the test material are sandwiched between the heating element and the cavity wall of the receiving cavity, and each layer of the test material has a monitoring end corresponding to the side of the heating element facing away from the heating element.

[0013] In some embodiments, the housing includes a housing body and a cover, the housing body having at least one opening communicating with the housing cavity, and the cover being provided in a one-to-one correspondence with the opening to block or open the opening.

[0014] In some embodiments, the shell body includes a bottom plate, a back plate, and side plates, the back plate being disposed on the bottom plate, and the two side plates being connected to opposite sides of the back plate.

[0015] The cap includes a first cap and a second cap. The first cap includes a groove that engages with the material to be tested, which is housed between the two side plates. The second cap overlaps the base plate and abuts against the first cap.

[0016] In some embodiments, the second cap is fixed to the shell body by a connector.

[0017] In some embodiments, the connector includes a cooperating connecting strip and a connecting protrusion, one of which is disposed on the second cover and the other is disposed on the shell body.

[0018] In some embodiments, the first cover has a plurality of reinforcing ribs on the side opposite to the base plate.

[0019] In some embodiments, the first temperature measuring element is a temperature-controlled thermocouple; and / or, the second temperature measuring element is a temperature-sensing thermocouple.

[0020] In some embodiments, the material thermal insulation performance testing device further includes a control system, which controls and connects the heating element, the first temperature measuring element, and the temperature measuring element. The control system is equipped with an energy consumption monitoring element to monitor the energy consumption data of the heating element.

[0021] The beneficial effects of this utility model are:

[0022] Using the above-described device, the material to be tested can be filled between the heating element and the cavity wall. This material can be flexible, plate-shaped rigid, or a combination of both. This allows the material to cover the heating element and be clamped between the cavity wall and the heating element. The material can be placed in a single layer or multiple layers stacked together. During testing, the heating element reaches the target temperature, and the internal cavity temperature is monitored by a first temperature measuring element to accurately adjust the heating temperature of the heating element, ensuring precise temperature control within the cavity. Then, under constant temperature conditions, feedback data from a second temperature measuring element reflects the thermal insulation performance of the material to be tested. This device has a simple structure, is easy to use, and can test the thermal insulation performance of materials of different forms. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the material thermal insulation performance testing device of this utility model without the second cover;

[0024] Figure 2 This is a schematic diagram of the first temperature measuring element displayed by the material thermal insulation performance testing device of this utility model;

[0025] Figure 3 This is a side view of the thermal insulation performance testing device of this utility model;

[0026] Figure 4 This is a three-dimensional structural schematic diagram of the material thermal insulation performance testing device of this utility model;

[0027] Figure 5 This is a schematic diagram of the connecting parts of the material thermal insulation performance testing device of this utility model.

[0028] In the picture:

[0029] 1. Heating element; 11. Inner cavity; 12. Heating wall; 2. First temperature measuring element; 3. Housing; 31. Housing body; 311. Bottom plate; 312. Side plate; 313. Back plate; 32. Cover; 321. First cover; 322. Second cover; 323. Reinforcing rib; 4. Second temperature measuring element; 5. Connector; 51. Connecting strip; 52. Connecting protrusion; 6. Material to be tested. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] like Figures 1 to 5 As shown, this application provides a material thermal insulation performance testing device, which includes a housing 3, a heating element 1, a first temperature measuring element 2, and a second temperature measuring element 4. The heating element 1 has an inner cavity 11. The monitoring end of the first temperature measuring element 2 extends into the inner cavity 11 of the heating element 1 to monitor the temperature of the inner cavity 11 of the heating element 1. The housing 3 is provided with a receiving cavity. The heating element 1 is disposed in the receiving cavity and there is a gap between it and the cavity wall of the receiving cavity, so that the material to be tested 6 can be filled between the heating element 1 and the cavity wall of the receiving cavity. The monitoring end of the second temperature measuring element 4 passes through the housing 3 and extends into the side of the material to be tested 6 away from the heating element 1. The heating element 1 can be a heating plate, a heating tube, a heating wire, etc.

[0035] Using the above-described device, the test material 6 can be filled between the heating element 1 and the cavity wall of the receiving cavity. It can be a flexible test material, a plate-shaped rigid test material, or a combination of flexible and rigid materials. This allows the test material 6 to cover the heating element 1 and be clamped between the cavity wall and the heating element 1. During placement, the test material 6 can be a single layer or multiple layers stacked together. During testing, the heating element 1 is brought to the target temperature, and the temperature of the inner cavity 11 is monitored by the first temperature measuring element 2 to accurately adjust the heating temperature of the heating element 1, so that the inner cavity 11 is precisely kept at a constant temperature. Then, under constant temperature conditions, the feedback data from the second temperature measuring element 4 reflects the thermal insulation performance of the test material 6. This device has a simple structure, is easy to use, and can test the thermal insulation performance of different forms of test materials 6.

[0036] In some embodiments, the material insulation performance testing device further includes a control system. The control system controls the heating element 1, the first temperature measuring element 2, and the second temperature measuring element 4. The first temperature measuring element 2 controls the heating process of the heating element 1 in real time through feedback from the control system, while the temperature measurement data of the second temperature measuring element 4 is also collected and analyzed by the control system, thereby achieving automated control. In the current embodiment, the control system may include, but is not limited to, industrial control systems such as PLCs. In addition, the control system also has an energy consumption monitoring device, which can monitor the energy consumption data of the heating element 1 during the heating stage. Thus, while conducting insulation tests, the energy consumption of the heating element 1 can reflect the energy-saving effect when the test material 6 is actually used, providing data support for energy-saving assessment. In other words, this material insulation performance testing device can test the energy-saving effect of the test material 6 while conducting insulation tests on different materials, further expanding its application scope.

[0037] For example, the first temperature measuring element 2 may, but is not limited to, use a temperature-controlled thermocouple; while the second temperature measuring element 4 may, but is not limited to, use a temperature-sensing thermocouple. It is understood that the first temperature measuring element 2, using a temperature-controlled thermocouple, is mainly used to control the temperature of the inner cavity 11, measuring the temperature through a temperature-sensitive resistor, and adjusting the heating process of the heating element 1 through a control circuit; while the second temperature measuring element 4, using a temperature-sensing thermocouple, is mainly used to measure the temperature of the material 6 under test, converting the temperature into an electrical signal for measurement through the thermoelectric effect.

[0038] In some embodiments, since different test materials 6 have different thermal insulation properties, and in actual use, multiple thermal insulation materials may be used in combination, and the number of layers used is also uncertain. Based on this, multiple layers of test materials 6 are sandwiched between the heating body 1 and the cavity wall of the receiving cavity. Each layer of test material 6 has a monitoring end of the second temperature measuring element 4 on the side facing away from the heating body 1, so that the thermal insulation effect of different combinations of test materials 6 can be measured. Thus, based on the temperature feedback from different second temperature measuring elements 4, different combinations of test materials 6 can be tested, thereby improving the test range.

[0039] like Figure 1 and Figure 2 As shown, in some embodiments, the monitoring end of the first temperature measuring element 2 extends into the inner cavity 11, which is a square or circular cavity. The monitoring end of the first temperature measuring element 2 is located at the center of the inner cavity 11, making the distance between the monitoring end of the first temperature measuring element 2 and the edge of the inner cavity 11 approximately the same. This allows for accurate monitoring of the temperature in the inner cavity 11, and the temperature data is then transmitted to the control system, resulting in more precise temperature control and avoiding inaccurate test data. In some embodiments, the distance between the heating element 1 and the cavity wall is adjustable, allowing the gap between the heating element 1 and the cavity wall to be adjusted according to the quantity and size of different test materials 6. Based on the aforementioned adjustable characteristics, the heating element 1 is composed of multiple heating walls 12, which isolate the aforementioned inner cavity 11. Each heating wall 12 is a heating plate and can move within the cavity. Therefore, by adjusting the position of the heating wall 12, the gap between the heating element 1 and the cavity wall can be adjusted. Furthermore, since the monitoring end of the first temperature measuring element 2 is located within the inner cavity 11 and does not move with the position of the heating wall 12, temperature control is more accurate. For example, when the inner cavity 11 of the heating element 1 is rectangular, the monitoring end of the first temperature measuring element 2 is located at the center of the rectangular cavity. The heating element 1 includes two, three, or four plate-shaped heating walls 12, which can then enclose the aforementioned rectangular inner cavity 11.

[0040] like Figures 2 to 4As shown, in order to better place the material to be tested 6, in some embodiments, the housing 3 includes a housing body 31 and a cover 32. The housing body 31 is provided with at least one opening communicating with the receiving cavity, and the cover 32 is provided one-to-one with the opening to block or open the opening, so that when the material to be tested 6 needs to be placed, the cover 32 can be removed to provide more operating space. In the current embodiment, the housing body 31 includes a bottom plate 311, a back plate 313 and a side plate 312. The back plate 313 is vertically arranged on the bottom plate 311, and the two side plates 312 are vertically arranged on the bottom plate 311 and are arranged at both ends of the back plate 313, thereby forming a housing with openings on both sides. The space between the back plate 313, the bottom plate 311 and the side plates 312 is the receiving cavity; the cover 32 includes a first cover 321 and a second cover 322, wherein the first cover 321 includes a groove, which is provided when the material to be tested 6 is covered. The heating element 1 is placed in the aforementioned cavity, and the groove on the first cover 321 can be closed onto the material to be tested 6, thereby partially embedding the material to be tested 6 into the groove of the first cover 321. The weight of the first cover 321 and the edge of the groove of the first cover 321 further stabilize the material to be tested 6. At the same time, the side wall of the first cover 321 abuts against the back plate 313 and the side plate 312. Then, the second cover 322 can be overlapped on the bottom plate 311 and pressed against the side of the first cover 321 away from the back plate 313.

[0041] like Figure 5 As shown, to facilitate the stability of the second cover 322 and prevent it from tipping over, in some embodiments, the second cover 322 can be fixed to the shell body 31 via a connector 5. Thus, when the second cover 322 is pressed against the first cover 321, the first cover 321 can be fixed to the shell body 31 via the connector 5. Exemplarily, the connector 5 includes a connecting strap 51 and a connecting protrusion 52. One of the connecting strap 51 and the connecting protrusion 52 is disposed on the second cover 322, and the other is disposed on the shell body 31, thereby achieving fixation through the cooperating connecting strap 51 and connecting protrusion 52. Specifically, connecting straps 51 are provided on opposite sides of the second cover 322, and connecting protrusions 52 are provided on the side plate 312. During fixation, it is only necessary to fix the connecting strap 51 onto the connecting protrusion 52. One method is to provide connecting holes in the connecting strap 51, so that the connecting strap 51 is fitted onto the connecting protrusion 52 through the connecting holes; another method is to directly fasten the connecting strap 51 onto the connecting protrusion 52.

[0042] like Figure 4As shown, in some embodiments, the first cover 321 is provided with a plurality of reinforcing ribs 323 on the side opposite to the base plate 311. The plurality of reinforcing ribs 323 are staggered to enhance strength. Exemplarily, the reinforcing ribs 323 are plate-shaped reinforcing ribs and protrude in a direction away from the first cover 321, so that the reinforcing ribs 323 can also act as handles for picking up and putting down the first cover 321, further improving convenience.

[0043] Since the monitoring ends of the first temperature measuring element 2 and the second temperature measuring element 4 need to be inserted through the outside of the housing 3, in order to facilitate insertion, the side plate 312 and the back plate 313 of the housing body 31 can be provided with several hollow parts, so as to minimize the opening of holes in the housing 3 when inserting the first temperature measuring element 2 and the second temperature measuring element 4. If holes are required, they only need to be opened in the corresponding material to be measured 6, which further improves the convenience of placement.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for testing the thermal insulation properties of a material, characterized in that, include: A heating element having an inner cavity; A first temperature measuring element, the monitoring end of which extends into the inner cavity to monitor the heating temperature of the heating element; The housing has a cavity, and the heating element is disposed in the cavity with a gap between it and the cavity wall, so that the material to be tested can be filled between the heating element and the cavity wall. The second temperature measuring element has its monitoring end passing through the housing and extending into the side of the material to be tested that is away from the heating element.

2. The material thermal retention performance testing device according to claim 1, wherein, The heating element includes multiple heating walls that enclose the inner cavity. The heating walls are movable within the cavity so that the distance between the heating element and the cavity wall is adjustable.

3. The material thermal retention performance testing device according to claim 1, wherein, The multiple layers of the test material are sandwiched between the heating element and the cavity wall of the receiving cavity, and the side of each layer of the test material facing away from the heating element corresponds to the monitoring end of the second temperature measuring element.

4. The material thermal retention performance testing device of claim 1, wherein, The housing includes a housing body and a cover. The housing body has at least one opening communicating with the housing cavity. The cover is provided in a one-to-one correspondence with the opening to block or open the opening.

5. The material thermal retention performance testing device according to claim 4, wherein, The shell body includes a bottom plate, a back plate, and side plates. The back plate is disposed on the bottom plate, and the two side plates are connected to opposite sides of the back plate. The cap includes a first cap and a second cap. The first cap includes a groove that engages with the material to be tested, which is housed between the two side plates. The second cap overlaps the base plate and abuts against the first cap.

6. The material thermal retention performance testing device according to claim 5, wherein, The second cover is fixed to the shell body by a connector.

7. The material thermal retention performance testing device according to claim 6, wherein, The connector includes a matching connecting strip and a connecting protrusion, one of which is disposed on the second cover and the other is disposed on the shell body.

8. The material thermal retention performance testing device of claim 5, wherein, The first cover has several reinforcing ribs on the side opposite to the base plate.

9. The material thermal retention performance testing device of claim 1, wherein, The first temperature measuring element is a temperature-controlled thermocouple; and / or, the second temperature measuring element is a temperature-measuring thermocouple.

10. The material thermal retention performance testing device according to any one of claims 1-9, wherein, The material insulation performance testing device also includes a control system, which controls and connects the heating element, the first temperature measuring element, and the second temperature measuring element. The control system is equipped with an energy consumption monitoring element to monitor the energy consumption data of the heating element.

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