Thermal stability test system and test method of phase change energy storage fireproof plate

Abstract

The invention discloses a thermal stability test system and test method of a phase change energy storage fireproof plate, the thermal stability test system of the phase change energy storage fireproof plate comprises a test frame, a heating system, a temperature detection system and a heat flow detection system, the test frame is provided with a mounting hole for mounting the phase change energy storage fireproof plate; the heating system is used for being connected with the phase change energy storage fireproof plate so as to heat the phase change energy storage fireproof plate; the temperature detection system is used for being connected with the phase change energy storage fireproof plate so as to detect the temperature of the phase change energy storage fireproof plate; the heat flow detection system is used for being connected with the phase change energy storage fireproof plate so as to detect the heat flow change of the phase change energy storage fireproof plate. According to the thermal stability test system of the phase change energy storage fireproof plate, the thermal stability of the phase change energy storage fireproof plate can be evaluated according to the temperature difference and the heat flow difference of the fireproof plate.

Description

Technical Field

[0001] The invention relates to the technical field of fireproof board testing, and in particular to a thermal stability testing system and a testing method for a phase change energy storage fireproof board. Background Art

[0002] Fireproof panels are usually composed of fireproof materials, heat-insulating materials, explosion-proof impact layers, etc., and should be able to prevent falling off, displacement, deformation and cracking under normal use and fire conditions. At present, when a fire occurs, the temperature rises sharply in a short period of time, which can easily cause thermal deformation of the fireproof panels, resulting in gaps between the fireproof panels and the building structure. Smoke or open flames will enter the building through the gaps, endangering the safety of people and finances inside, and the fireproof panels will lose their meaning of existence.

[0003] Phase change energy storage fireproof board is a new type of fireproof board. Phase change energy storage fireproof board stores heat in phase change material and uses phase change material to keep the temperature of the whole fireproof board constant. Regardless of the heating process or the cooling process, the phase change material is a constant temperature process, which can keep the whole assembly in a long-term constant temperature protection stage when a fire occurs outside, preventing the fireproof board from heating up sharply in a short period of time, helping the whole fireproof sealing assembly to maintain integrity and play a role in fire prevention. Cause the destruction of the fireproof board. In the related technology, there is a lack of methods for testing and evaluating phase change energy storage fireproof boards, especially a lack of methods for testing the thermal stability of phase change energy storage fireproof boards, which affects the development and application of phase change energy storage fireproof boards. Summary of the invention

[0004] The present invention provides a thermal stability testing system for a phase change energy storage fireproof board, so as to perform a thermal stability test on the fireproof board.

[0005] The thermal stability testing system of the phase change energy storage fireproof board of the present invention comprises a test frame, a heating system, a temperature detection system and a heat flow detection system, wherein the test frame has a mounting hole for mounting the phase change energy storage fireproof board; the heating system is used to be connected to the phase change energy storage fireproof board to heat the phase change energy storage fireproof board; the temperature detection system is used to be connected to the phase change energy storage fireproof board to detect the temperature of the phase change energy storage fireproof board; the heat flow detection system is used to be connected to the phase change energy storage fireproof board to detect the change in heat flow of the phase change energy storage fireproof board.

[0006] Optionally, the test frame is a concrete frame.

[0007] Optionally, the heating system includes a heating plate and a heating coil, wherein the heating coil is arranged inside the heating plate, and the heating plate is used to contact the outer surface of the phase change energy storage fireproof board.

[0008] Optionally, the temperature detection system includes a temperature detection probe and a temperature display screen, the temperature detection probe is signal-connected to the temperature display screen, and the temperature detection probe is in contact with the phase change energy storage fireproof board.

[0009] Optionally, the phase change energy storage fireproof board includes a plurality of stacked layers of boards, and the number of the temperature detection probes is multiple, at least one temperature detection probe is arranged between two adjacent layers of the boards, at least one temperature detection probe is arranged between the heating plate and the outer surface of the phase change energy storage fireproof board, and at least one temperature detection probe is arranged on the inner surface of the phase change energy storage fireproof board.

[0010] Optionally, the heat flow detection system includes a heat flow meter, and the heat flow meter is in contact with the phase change energy storage fireproof board.

[0011] Optionally, the phase change energy storage fireproof board includes a plurality of stacked plates, and the number of the heat flux meters is multiple, at least one heat flux meter is arranged between two adjacent layers of the plates, at least one heat flux meter is arranged between the heating plate and the outer surface of the phase change energy storage fireproof board, and at least one heat flux meter is arranged on the inner surface of the phase change energy storage fireproof board.

[0012] Optionally, the thermal stability testing system of the phase-change energy storage fireproof board further includes a deformation testing system, and the deformation testing system is used to detect the deformation amount of the phase-change energy storage fireproof board.

[0013] Optionally, the deformation testing system includes a detection plate and a first measuring tool, the detection plate is used to place the phase change energy storage fireproof board, and the first measuring tool is used to measure the thickness of the phase change energy storage fireproof board.

[0014] Optionally, the deformation testing system includes a second measuring tool, which is used to detect the size of the gap between the hole wall of the mounting hole and the phase change energy storage fireproof board.

[0015] The invention also provides a method for testing the thermal stability of the phase-change energy storage fireproof board.

[0016] The thermal stability testing method of the phase-change energy storage fireproof board of the present invention is implemented by using the thermal stability testing system of the phase-change energy storage fireproof board described in any one of the above items, and comprises the following steps:

[0017] Install the phase-change energy storage fireproof board at the installation hole of the test frame, and fill the gap between the hole wall of the installation hole and the phase-change energy storage fireproof board with a thermal insulation material;

[0018] Connecting the temperature detection system and the heat flow detection system to the phase change energy storage fireproof board;

[0019] Connecting the heating system to the outer surface of the phase-change energy storage fireproof board, and using the heating system to heat the outer surface of the phase-change energy storage fireproof board;

[0020] The temperature difference and heat flow difference of the phase change energy storage fireproof board are obtained.

[0021] Optionally, the heating temperature of the heating system is 270°C to 290°C; when the temperature difference of the phase-change energy storage fireproof board is zero and the heat flow difference remains unchanged, the heating of the phase-change energy storage fireproof board is stopped.

[0022] Optionally, while the heating system is heating the outer surface of the phase change energy storage fireproof board, the phase change energy storage fireproof board is three-dimensionally scanned to obtain the three-dimensional morphological changes of the phase change energy storage fireproof board; based on the obtained three-dimensional morphological changes of the phase change energy storage fireproof board, the deformation of the phase change energy storage fireproof board is calculated.

[0023] When the thermal stability test system of the phase change energy storage fireproof board of the present invention performs a thermal stability test, the temperature detection system and the heat flow detection system are connected to the fireproof board, the fireproof board is installed at the mounting hole of the test frame, and the gap between the hole wall of the mounting hole and the fireproof board is filled with a thermal insulation material to achieve a sealed connection between the fireproof board and the test frame. Afterwards, the outer surface of the fireproof board is heated by the heating system. During the heating process of the fireproof board, the temperature difference and the heat flow difference of the fireproof board can be obtained by the temperature detection system and the heat flow detection system, respectively. According to the temperature difference and the heat flow difference of the fireproof board, the thermal stability of the phase change energy storage fireproof board can be evaluated. Specifically, during the heating process of the fireproof board, the smaller the temperature difference, the less likely the fireproof board is to deform; the smaller the heat flow difference, the less likely the fireproof board is to deform, which means that the thermal stability of the phase change energy storage fireproof board is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a fireproof board according to an embodiment of the present invention.

[0025] Figure 2 Detailed description of the invention The figure is an exploded view of a fireproof board according to an embodiment of the present invention.

[0026] Figure 3 It is a schematic structural diagram of a fireproof board according to an embodiment of the present invention installed on a test frame.

[0027] Figure 4 It is an exploded view of a fireproof board according to an embodiment of the present invention installed on a test frame.

[0028] Figure 5 It is a structural schematic diagram of detection points on the fireproof board according to an embodiment of the present invention.

[0029] Figure 6It is a temperature variation curve diagram of each layer of the fireproof board according to an embodiment of the present invention.

[0030] Figure 7 It is a heat flow variation curve diagram of each layer of the fireproof board of an embodiment of the present invention.

[0031] Reference numerals:

[0032] 100, fireproof board; 1001, perforation; 1002, detection point;

[0033] 1. A first metal plate;

[0034] 2. A second metal plate;

[0035] 3. Phase change energy storage layer; 31. Phase change energy storage module;

[0036] 4. Thermal insulation layer;

[0037] 5. frame; 51. receiving chamber;

[0038] 200. Test stand; 2001. Mounting hole. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0040] like Figures 1 to 4 As shown, the thermal stability test system of the phase change energy storage fireproof board 100 of the embodiment of the present invention includes a test frame 200, a heating system, a temperature detection system and a heat flow detection system. The test frame 200 has a mounting hole 2001 for mounting the phase change energy storage fireproof board 100. The heating system is used to connect with the phase change energy storage fireproof board 100 to heat the phase change energy storage fireproof board 100. The temperature detection system is used to connect with the phase change energy storage fireproof board 100 to detect the temperature of the phase change energy storage fireproof board 100. The heat flow detection system is used to connect with the phase change energy storage fireproof board 100 to detect the heat flow change of the phase change energy storage fireproof board 100. Among them, the test frame 200 is used to simulate building structures, etc., and the heating system is used to simulate fireworks during a fire.

[0041] Among them, the phase change energy storage fireproof board 100 is a fireproof board including a phase change material. For example, the phase change energy storage fireproof board 100 includes a phase change energy storage layer 3, and the phase change energy storage layer 3 includes a phase change material. The temperature of the phase change material is constant during the phase change process, so that most of the heat flow of the phase change energy storage fireproof board 100 can be absorbed by the phase change energy storage layer 3, preventing the phase change energy storage fireproof board 100 from rapidly heating up in a short period of time, causing damage to the phase change energy storage fireproof board 100.

[0042] When the thermal stability test system of the phase change energy storage fireproof board 100 of the embodiment of the present invention performs a thermal stability test, the temperature detection system and the heat flow detection system are connected to the phase change energy storage fireproof board 100, the phase change energy storage fireproof board 100 is installed at the mounting hole 2001 of the test frame 200, and the gap between the hole wall of the mounting hole 2001 and the phase change energy storage fireproof board 100 is filled with a thermal insulation material to achieve a sealed connection between the phase change energy storage fireproof board 100 and the test frame 200. Afterwards, the outer surface of the phase change energy storage fireproof board 100 is heated by the heating system. During the heating process of the phase change energy storage fireproof board 100, the temperature difference and heat flow difference of the phase change energy storage fireproof board 100 can be obtained by the temperature detection system and the heat flow detection system respectively. According to the temperature difference and heat flow difference of the phase change energy storage fireproof board 100, the thermal stability of the phase change energy storage fireproof board 100 can be evaluated. Specifically, during the heating process of the phase change energy storage fireproof board 100, the smaller the temperature difference, the less likely the phase change energy storage fireproof board 100 is to deform; the smaller the heat flow difference, the less likely the phase change energy storage fireproof board 100 is to deform, which means that the thermal stability of the phase change energy storage fireproof board 100 is better.

[0043] The thermal stability testing system of the phase-change energy storage fireproof board 100 of the present invention can test whether the phase-change energy storage fireproof boards on the market have the phase-change energy storage function, and lay the foundation for establishing such testing standards in the market.

[0044] Optionally, the test frame 200 is a concrete frame.

[0045] By setting the test frame 200 as a concrete frame, the test frame 200 can be used to more accurately simulate the building structure, thereby improving the thermal stability test accuracy of the phase change energy storage fireproof board 100.

[0046] It can be installed on the ground, and the insulation material is fireproof insulation glue.

[0047] Optionally, the heating system includes a heating plate and a heating coil, the heating coil is arranged inside the heating plate, and the heating plate is used to contact the outer surface of the phase change energy storage fireproof board 100. The outer surface of the phase change energy storage fireproof board 100 refers to: the surface of the phase change energy storage fireproof board 100 when it is in use and facing the smoke and fire in the event of a fire.

[0048] By configuring the heating system to include a heating plate and arranging the heating coil inside the heating plate, the contact area between the heating system and the phase change energy storage fireproof board 100 is larger, thereby improving the heating uniformity of the phase change energy storage fireproof board 100 by the heating system and improving the accuracy of the thermal stability test of the phase change energy storage fireproof board 100.

[0049] Optionally, the temperature detection system includes a temperature detection probe and a temperature display screen, the temperature detection probe is connected to the temperature display screen signal, and the temperature detection probe is in contact with the phase change energy storage fireproof board 100. Among them, the temperature detection probe can be a thermistor, a thermocouple, etc.

[0050] By configuring the temperature detection system to include a temperature detection probe and a temperature display screen, not only can the temperature detection accuracy of the phase change energy storage fireproof board 100 be improved, but also the temperature change of the phase change energy storage fireproof board 100 can be easily obtained.

[0051] Alternatively, if Figure 5 As shown, the phase change energy storage fireproof board 100 is provided with a plurality of detection points 1002, and the temperature detection probe is installed at the detection point 1002. Among them, the plurality of detection points 1002 are evenly arranged on the phase change energy storage fireproof board 100.

[0052] For example, Figure 5 As shown, the phase-change energy storage fireproof board 100 is a rectangular board, and four detection points 1002 are set on the phase-change energy storage fireproof board 100. The minimum distance from each detection point 1002 to the long side of the phase-change energy storage fireproof board 100 is equal, and the minimum distance from each detection point 1002 to the short side of the phase-change energy storage fireproof board 100 is equal. Specifically, the length of the short side of the phase-change energy storage fireproof board 100 is L1, the length of the long side of the phase-change energy storage fireproof board 100 is L2, the minimum distance from each detection point 1002 to the short side is 1 / 4L1, and the minimum distance from each detection point 1002 to the long side is 1 / 4L2.

[0053] When performing temperature detection on the phase-change energy storage fireproof board 100 , a temperature detection probe may be installed at each detection point 1002 .

[0054] Alternatively, if Figure 2 and Figure 3 As shown, the phase change energy storage fireproof board 100 includes a plurality of stacked board bodies, and there are multiple temperature detection probes. At least one temperature detection probe is arranged between two adjacent board bodies, at least one temperature detection probe is arranged between the heating plate and the outer surface of the phase change energy storage fireproof board 100, and at least one temperature detection probe is arranged on the inner side of the phase change energy storage fireproof board 100.

[0055] For example, Figure 2 and Figure 3As shown, the phase-change energy storage fireproof board 100 includes four layers of board bodies, which are the first metal plate 1, the heat insulation layer 4, the phase-change energy storage layer 3 and the second metal plate 2 in sequence, wherein the surface of the first metal plate 1 facing away from the heat insulation layer 4 is the outer surface of the phase-change energy storage fireproof board 100, and the surface of the second metal plate 2 facing away from the phase-change energy storage layer 3 is the inner surface. When used specifically, at least one temperature detection probe is provided between the first metal plate 1 and the heat insulation layer 4, between the heat insulation layer 4 and the phase-change energy storage layer 3, between the phase-change energy storage layer 3 and the second metal plate 2, and between the first metal plate 1 and the heating plate.

[0056] Thus, during the heating process of the phase-change energy storage fireproof board 100, the temperature difference of each layer of the board body can be obtained by setting the temperature detection probes on the opposite sides of each layer of the board body, so as to evaluate the thermal stability of each layer of the phase-change energy storage fireproof board 100. For example, by setting the temperature detection probe between the heat insulation layer 4 and the phase-change energy storage layer 3, and the temperature detection probe between the phase-change energy storage layer 3 and the second metal plate 2, the temperature difference of the phase-change energy storage layer 3 during the heating process of the phase-change energy storage fireproof board 100 can be obtained, so as to evaluate the thermal stability of the phase-change energy storage layer 3.

[0057] The temperature of the phase change energy storage material is constant during the phase change process, and most of the heat flow is absorbed by the phase change energy storage layer 3, so that the phase change energy storage layer 3 acts as a constant temperature bridge between the insulation layer 4 and the second metal plate 2, reducing the deformation of the first metal plate 1 caused by temperature changes.

[0058] When installing the temperature detection probes, the temperature detection probes on both sides of the insulation layer 4 can be installed in the following manner: drill holes at the insulation layer 4 corresponding to the detection point 1002, place the temperature detection probes in the holes, and fill the gaps with polyurethane material. The temperature detection probe between the phase change energy storage layer 3 and the second metal plate 2 can be directly installed on the surface of the second metal plate 2 facing the phase change energy storage layer 3. The temperature detection probe between the first metal plate 1 and the heating plate can be directly installed on the surface of the first metal plate 1 facing the heating plate. The temperature detection probe on the inner side of the phase change energy storage fireproof board 100 is directly installed on the surface of the second metal plate 2 facing away from the phase change energy storage layer 3.

[0059] like Figure 1 and Figure 2 As shown, a through hole 1001 is provided in the middle of the phase change energy storage fireproof board 100 .

[0060] Optionally, the phase change energy storage layer 3 includes a plurality of phase change energy storage modules 31 , and the phase change energy storage fireproof panel 100 further includes a frame 5 , the frame 5 is provided with a plurality of accommodating cavities 51 , and the phase change energy storage modules 31 are arranged in the accommodating cavities 51 .

[0061] The frame 5 may be a metal frame, for example, a stainless steel frame. The phase change energy storage module and the frame 5 may be bonded.

[0062] By setting the frame 5 and filling the phase change energy storage module 31 in the accommodating cavity 51 of the frame 5, the frame 5 supports the phase change energy storage module 31, and facilitates the installation and fixation of the phase change energy storage layer 3. Thus, the assembly efficiency of the phase change energy storage fireproof board 100 can be improved.

[0063] Optionally, the first metal plate 1 and the second metal plate 2 are explosion-proof plates. In other words, the first metal plate 1 and the second metal plate 2 are metal plates with explosion-proof function.

[0064] Optionally, the heat flow detection system includes a heat flow meter, which is in contact with the phase change energy storage fireproof board 100 .

[0065] By bringing the heat flow meter into contact with the phase-change energy storage fireproof board 100 , the accuracy of heat flow detection of the phase-change energy storage fireproof board 100 can be improved.

[0066] Optionally, there are multiple heat flux meters, at least one heat flux meter is arranged between two adjacent layers of plates, at least one heat flux meter is arranged between the heating plate and the outer surface of the phase change energy storage fireproof board 100, and at least one heat flux meter is arranged on the inner surface of the phase change energy storage fireproof board 100.

[0067] For example, at least one heat flow meter is arranged between the first metal plate 1 and the thermal insulation layer 4, between the thermal insulation layer 4 and the phase change energy storage layer 3, between the phase change energy storage layer 3 and the second metal plate 2, and between the first metal plate 1 and the heating plate.

[0068] Thus, during the heating process of the phase-change energy storage fireproof board 100, the heat flow difference of each layer of the board body can be obtained by setting the heat flow meters on the opposite sides of each layer of the board body, so as to evaluate the thermal stability of each layer of the phase-change energy storage fireproof board 100. For example, by setting the heat flow meter between the heat insulation layer 4 and the phase-change energy storage layer 3, and the heat flow meter between the phase-change energy storage layer 3 and the second metal plate 2, the heat flow difference of the phase-change energy storage layer 3 during the heating process of the phase-change energy storage fireproof board 100 can be obtained, so as to evaluate the thermal stability of the phase-change energy storage layer 3.

[0069] When installing the heat flux meter specifically, the heat flux meters on both sides of the thermal insulation layer 4 can be installed in the following manner: drill a hole at the position of the thermal insulation layer 4 corresponding to the detection point 1002, place the heat flux meter in the hole, and fill the gap with polyurethane material. The heat flux meter between the phase change energy storage layer 3 and the second metal plate 2 can be directly installed on the surface of the second metal plate 2 facing the phase change energy storage layer 3. The heat flux meter between the first metal plate 1 and the heating plate can be directly installed on the surface of the first metal plate 1 facing the heating plate. The heat flux meter on the inner side of the phase change energy storage fireproof board 100 is directly installed on the surface of the second metal plate 2 facing away from the phase change energy storage layer 3.

[0070] Optionally, the thermal stability testing system of the phase-change energy storage fireproof board 100 also includes a deformation testing system, and the deformation testing system is used to detect the deformation amount of the phase-change energy storage fireproof board 100 .

[0071] For example, before conducting a thermal stability test on the phase change energy storage fireproof board 100, a thickness test is performed on the phase change energy storage fireproof board 100, which is recorded as the first thickness; after conducting a thermal stability test on the phase change energy storage fireproof board 100, a thickness test is performed on the phase change energy storage fireproof board 100, which is recorded as the second thickness. The difference between the second thickness and the first thickness is the deformation of the phase change energy storage fireproof board 100.

[0072] The thermal stability of the phase change energy storage fireproof board 100 can be evaluated by the obtained deformation amount.

[0073] Optionally, the deformation test system includes a detection plate and a first measuring tool, the detection plate is used to place the phase-change energy storage fireproof board 100, and the first measuring tool is used to measure the thickness of the phase-change energy storage fireproof board 100. The first measuring tool may be a vernier caliper.

[0074] When testing the thickness of the phase change energy storage fireproof board 100, first place the phase change energy storage fireproof board 100 flat on the testing board, and then use the surface of the testing board facing the phase change energy storage fireproof board 100 as the measurement reference plane, and measure the distance from the highest point of the phase change energy storage fireproof board 100 to the measurement reference plane to obtain the thickness of the phase change energy storage fireproof board 100.

[0075] Thus, the deformation amount of the phase-change energy storage fireproof board 100 can be obtained to evaluate the thermal stability of the phase-change energy storage fireproof board 100 .

[0076] Optionally, the deformation testing system includes a second measuring tool, which is used to detect the size of the gap between the hole wall of the installation hole 2001 and the phase change energy storage fireproof board 100. The first measuring tool can be a plug gauge or a vernier caliper.

[0077] By detecting the size of the gap between the hole wall of the installation hole 2001 and the phase change energy storage fireproof board 100 , the deformation size of the phase change energy storage fireproof board 100 can also be obtained to evaluate the thermal stability of the phase change energy storage fireproof board 100 .

[0078] A vernier caliper or a laser rangefinder can also be used to measure the dimensions of the phase-change energy storage fireproof board 100 at different temperatures. By comparing the dimensional changes (e.g., length and width changes) of the phase-change energy storage fireproof board 100 before and after heating, the linear expansion rate or contraction rate of the phase-change energy storage fireproof board 100 can be calculated to evaluate the thermal stability of the phase-change energy storage fireproof board 100.

[0079] By detecting the temperature difference and heat flow difference, the performance of each layer of the board and the overall performance can also be evaluated and predicted.

[0080] For example, the heat transfer coefficient calculation formula: K = Q / T

[0081] Where: K is the heat transfer coefficient of each layer of the plate [unit: W / (m 2 ℃)];

[0082] Q is the average heat transfer flow rate between each layer of the plate (W / m 2 );

[0083] T is the average temperature difference between the layers (°C).

[0084] For example, temperature stability evaluation parameters: temperature difference (ΔT) and constant temperature time (Δt1).

[0085] Temperature difference calculation formula: ΔT = T1-T2

[0086] Where: ΔT is the average temperature difference (℃);

[0087] T1 is the temperature between the thermal insulation layer 4 and the phase change energy storage layer 3 (°C);

[0088] T2 is the temperature between the phase change energy storage layer 3 and the second metal plate 2 (°C);

[0089] Δt1=tb-te

[0090] Where: Δt1 is the constant temperature duration (hours);

[0091] Tb is the start time of the constant temperature of the phase change energy storage layer 3 and the second metal plate 2;

[0092] Te is the end time of the constant temperature of the phase change energy storage layer 3 and the second metal plate 2;

[0093] For example, the heat flow stability evaluation parameter: heat flow difference (ΔQ).

[0094] ΔQ=Q1-Q2

[0095] Where: ΔQ is the heat flow difference (W / m 2 );

[0096] Q1 is the heat flow between the thermal insulation layer 4 and the phase change energy storage layer 3 (W / m 2 );

[0097] Q2 is the heat flow between the phase change energy storage layer 3 and the second metal plate 2 (W / m 2 ).

[0098] like Figure 6 and Figure 7 As shown, based on the above formula, the temperature change and heat flow change curve of each layer of the phase change energy storage fireproof board 100 can be obtained.

[0099] The thermal stability testing method of the phase change energy storage fireproof board 100 according to the embodiment of the present invention comprises the following steps:

[0100] Install the phase-change energy storage fireproof board 100 at the installation hole 2001 of the test frame 200, and fill the gap between the hole wall of the installation hole 2001 and the phase-change energy storage fireproof board 100 with a heat-insulating material;

[0101] Connect the temperature detection system and the heat flow detection system to the phase change energy storage fireproof board 100;

[0102] Connecting the heating system to the outer surface of the phase-change energy storage fireproof board 100, and heating the outer surface of the phase-change energy storage fireproof board 100 by using the heating system;

[0103] The temperature difference and heat flow difference of the phase change energy storage fireproof panel 100 are obtained.

[0104] According to the temperature difference and heat flow difference of the phase-change energy storage fireproof board 100 , the thermal stability of the phase-change energy storage fireproof board 100 can be evaluated.

[0105] Optionally, the heating temperature of the heating system is 270°C to 290°C.

[0106] For example, the heating temperature of the heating system is 280°C.

[0107] Optionally, when the temperature difference of the phase-change energy storage fireproof board 100 is zero and the heat flow difference remains unchanged, the heating of the phase-change energy storage fireproof board 100 is stopped.

[0108] When the temperature difference of the phase-change energy storage fireproof board 100 is zero and the heat flow difference remains unchanged, it is considered that the temperature of the phase-change energy storage fireproof board 100 reaches a constant.

[0109] Optionally, during the heating process of the heating system heating the outer surface of the phase-change energy storage fireproof board 100, the phase-change energy storage fireproof board 100 is subjected to a three-dimensional scan to obtain a three-dimensional morphological change of the phase-change energy storage fireproof board 100;

[0110] Based on the obtained three-dimensional morphological changes of the phase-change energy storage fireproof board 100 , the deformation amount of the phase-change energy storage fireproof board 100 is calculated.

[0111] For example, at different temperatures, the phase change energy storage fireproof board 100 is three-dimensionally scanned using laser or structured light to obtain the three-dimensional morphological changes of the phase change energy storage fireproof board 100 at different temperatures, thereby calculating the deformation of the phase change energy storage fireproof board 100 at different temperatures.

[0112] The thermal stability of the phase change energy storage fireproof board 100 at different temperatures is evaluated by the obtained deformation amount.

[0113] Thermal stability testing method of the phase change energy storage fireproof board 100 according to an embodiment of the present invention:

[0114] 1) Install the phase-change energy storage fireproof board 100 in the test frame 200, and fill the gap between the hole wall of the installation hole 2001 and the phase-change energy storage fireproof board 100 with fireproof and heat-insulating glue.

[0115] 2) Install the heating plate on the outer surface of the phase change energy storage fireproof board 100, and install temperature detection probes and heat flow meters between the heating plate and the phase change energy storage fireproof board 100 and between the layers of the phase change energy storage fireproof board 100.

[0116] 3) Turn on the heating plate and set the temperature to 280°C. Record the temperature and heat flow meter change data.

[0117] 4) When the temperature of the phase change energy storage fireproof board 100 is constant or the heat flux meter is constant, stop the test.

[0118] 5) After the temperature of the phase change energy storage fireproof board 100 drops to room temperature, remove the heating plate, observe the damage of the phase change energy storage fireproof board 100, measure the deformation degree of the phase change energy storage fireproof board 100, and mainly test the thickness change of the phase change energy storage fireproof board 100.

[0119] 6) Plot the relationship between the temperature change and the heat flux meter change and time, calculate the heat transfer coefficient of each layer of the board, and evaluate the temperature stability and heat flux stability of the phase change energy storage fireproof board 100.

[0120] Among them, the temperature stability can evaluate the overall deformation degree of the phase change energy storage fireproof board 100. The smaller the temperature fluctuation, the smaller the temperature difference, the more stable the temperature, the less likely the phase change energy storage fireproof board 100 is to deform, especially the smaller the deformation of the second metal plate 2; the heat flow stability can evaluate the amount of heat transferred from the phase change energy storage layer 3 to the second metal plate 2. The less heat transferred to the second metal plate 2, the smaller the temperature fluctuation of the second metal plate 2, and the possibility of deformation is reduced.

[0121] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A thermal stability testing system for phase change energy storage fireproof panels, characterized in that: include: A test frame, the test frame having a mounting hole for mounting a phase change energy storage fireproof panel; A heating system, the heating system is used to be connected to the phase change energy storage fireproof board to heat the phase change energy storage fireproof board; A temperature detection system, the temperature detection system is used to be connected to the phase change energy storage fireproof board to detect the temperature of the phase change energy storage fireproof board; A heat flow detection system is used to connect with the phase change energy storage fireproof board to detect the heat flow change of the phase change energy storage fireproof board.

2. The thermal stability testing system of the phase change energy storage fireproof board according to claim 1 is characterized in that: The test frame is a concrete frame.

3. The thermal stability testing system of the phase change energy storage fireproof board according to claim 1 is characterized in that: The heating system comprises a heating plate and a heating coil, wherein the heating coil is arranged inside the heating plate, and the heating plate is used to contact the outer surface of the phase-change energy storage fireproof board.

4. The thermal stability testing system of the phase change energy storage fireproof board according to claim 3 is characterized in that: The temperature detection system comprises a temperature detection probe and a temperature display screen. The temperature detection probe is connected to the temperature display screen by signal, and the temperature detection probe is in contact with the phase change energy storage fireproof board.

5. The thermal stability testing system of the phase change energy storage fireproof board according to claim 4 is characterized in that: The phase change energy storage fireproof board includes a plurality of stacked layers of boards, and the number of the temperature detection probes is multiple. At least one temperature detection probe is arranged between two adjacent layers of the boards, at least one temperature detection probe is arranged between the heating plate and the outer surface of the phase change energy storage fireproof board, and at least one temperature detection probe is arranged on the inner surface of the phase change energy storage fireproof board.

6. The thermal stability testing system of the phase change energy storage fireproof board according to claim 3 is characterized in that: The heat flow detection system includes a heat flow meter, and the heat flow meter is in contact with the phase change energy storage fireproof board.

7. The thermal stability testing system of the phase change energy storage fireproof board according to claim 6 is characterized in that: The phase change energy storage fireproof board includes a plurality of stacked plates, and the number of the heat flux meters is multiple. At least one heat flux meter is arranged between two adjacent layers of the plates, at least one heat flux meter is arranged between the heating plate and the outer surface of the phase change energy storage fireproof board, and at least one heat flux meter is arranged on the inner surface of the phase change energy storage fireproof board.

8. The thermal stability testing system of the phase change energy storage fireproof board according to claim 1 is characterized in that: The thermal stability testing system of the phase-change energy storage fireproof board also includes a deformation testing system, and the deformation testing system is used to detect the deformation amount of the phase-change energy storage fireproof board.

9. The thermal stability testing system of the phase change energy storage fireproof board according to claim 8, characterized in that: The deformation testing system includes a detection plate and a first measuring tool, wherein the detection plate is used to place the phase-change energy storage fireproof board, and the first measuring tool is used to measure the thickness of the phase-change energy storage fireproof board.

10. The thermal stability testing system of the phase change energy storage fireproof board according to claim 8, characterized in that: The deformation testing system includes a second measuring tool, which is used to detect the size of the gap between the hole wall of the installation hole and the phase change energy storage fireproof board.

11. A method for testing the thermal stability of a phase change energy storage fireproof board, characterized in that: The thermal stability test system of the phase change energy storage fireproof board according to any one of claims 1 to 10 is used for implementation, comprising the following steps: Install the phase-change energy storage fireproof board at the installation hole of the test frame, and fill the gap between the hole wall of the installation hole and the phase-change energy storage fireproof board with a thermal insulation material; Connecting the temperature detection system and the heat flow detection system to the phase change energy storage fireproof board; Connecting the heating system to the outer surface of the phase-change energy storage fireproof board, and using the heating system to heat the outer surface of the phase-change energy storage fireproof board; The temperature difference and heat flow difference of the phase change energy storage fireproof board are obtained.

12. The method for testing the thermal stability of the phase change energy storage fireproof board according to claim 11, characterized in that: The heating temperature of the heating system is 270°C to 290°C; When the temperature difference of the phase-change energy storage fireproof board is zero and the heat flow difference remains unchanged, the heating of the phase-change energy storage fireproof board is stopped.

13. The method for testing the thermal stability of the phase change energy storage fireproof board according to claim 11, characterized in that: During the process of heating the outer surface of the phase-change energy storage fireproof board by the heating system, the phase-change energy storage fireproof board is subjected to three-dimensional scanning to obtain the three-dimensional morphological change of the phase-change energy storage fireproof board; Based on the obtained three-dimensional morphological changes of the phase-change energy storage fireproof board, the deformation amount of the phase-change energy storage fireproof board is calculated.

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