Parameter processing method for multi-layer and multi-cavity wall panels

Abstract

An embodiment of the present invention relates to a parameter processing method for a multi-layer and multi-cavity wall panel, including: calculating the equivalent thermal conductivity of the cavity core layer; calculating the theoretical heat transfer coefficient of wall panels with different configuration parameters according to the equivalent cavity diameter and the cavity unit height; fitting to obtain a first relationship between the equivalent cavity diameter and the cavity unit height; prefabricating a wall panel to be measured according to the prepared cavity unit height and the prepared equivalent cavity diameter; obtaining the measured heat transfer coefficient of the wall panel to be measured; determining a second relationship between the measured heat transfer coefficient and the theoretical heat transfer coefficient; correcting the theoretical heat transfer coefficient according to the second relationship to determine the actual heat transfer coefficient; determining the current cavity unit height and the current equivalent cavity diameter according to the actual heat transfer coefficient and the first relationship; determining the first design parameters of the cavity units in the cavity core layer and determining the second design parameters of the two-layer panels according to the current cavity unit height and the current equivalent cavity diameter, so as to design the wall panel through the first design parameters and the second design parameters.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and in particular to a method for processing parameters of a multi-layer and multi-cavity wall panel. Background Art

[0002] At present, most of the external wall thermal insulation and heat insulation structure measures need to be constructed secondly after the main structure is completed, which has obvious defects such as low construction efficiency, damage to the main structure, and short service life, and it is difficult to meet the current large-scale and high-growth construction needs in China. It is urgent to explore multi-functional and high-performance wall panels that integrate decoration, load-bearing (filling), and heat insulation to meet personalized needs. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for processing parameters of a multi-layer and multi-cavity wall panel to solve the problems existing in the prior art in view of the defects of the prior art.

[0004] To achieve the above purpose, the first aspect of the present invention provides a method for processing parameters of a multi-layer and multi-cavity wall panel, including:

[0005] Calculating the equivalent thermal conductivity of the cavity core layer according to the thermal conductivity of the solid part material of the cavity core layer, the thermal conductivity of the gas medium inside the cavity core layer, the cross-sectional area of the cavity wall of the cavity core layer, the total cross-sectional area, and the equivalent thermal conductivity of the radiative thermal conductivity between the two panels; the equivalent thermal conductivity of the radiative thermal conductivity is related to the equivalent cavity diameter and the height of the cavity unit of the cavity unit;

[0006] Calculating the theoretical heat transfer coefficient of wall panels with different configuration parameters according to the equivalent thermal conductivity of the cavity core layer;

[0007] Fitting a first relationship between the equivalent cavity diameter and the height of the cavity unit according to different equivalent cavity diameters, different heights of the cavity unit, and the corresponding theoretical heat transfer coefficients;

[0008] Determining the height of the prepared cavity unit and the prepared equivalent cavity diameter of the wall panel to be prepared according to the first relationship, and performing pre-preparation according to the height of the prepared cavity unit and the prepared equivalent cavity diameter to obtain the wall panel to be tested;

[0009] Obtaining the measured heat transfer coefficient of the wall panel to be tested;

[0010] Determining a second relationship between the measured heat transfer coefficient and the theoretical heat transfer coefficient;

[0011] Correcting the theoretical heat transfer coefficient according to the second relationship to determine the actual heat transfer coefficient;

[0012] Determining the current height of the cavity unit and the current equivalent cavity diameter according to the actual heat transfer coefficient and the first relationship;

[0013] Determine the first design parameters of the cavity units in the cavity core layer and the second design parameters of the two-layer panels according to the current cavity unit height and the current equivalent cavity diameter, so as to perform wall panel design through the first design parameters and the second design parameters.

[0014] In a possible implementation manner, the calculating the equivalent thermal conductivity of the cavity core layer according to the thermal conductivity of the solid part material of the cavity core layer, the thermal conductivity of the gas medium inside the cavity core layer, the cross-sectional area of the cavity wall of the cavity core layer, the total cross-sectional area, and the equivalent thermal conductivity of the radiative thermal conductivity between the two-layer panels specifically includes:

[0015] Calculate the product of the ratio of the cross-sectional area of the cavity wall of the cavity core layer to the total cross-sectional area of the cavity wall of the cavity core layer and the thermal conductivity of the solid part material of the cavity core layer to obtain a first product;

[0016] Calculate the product of (1 minus the ratio of the cross-sectional area of the cavity wall of the cavity core layer to the total cross-sectional area of the cavity wall of the cavity core layer) and the thermal conductivity of the gas medium inside the cavity core layer to obtain a second product;

[0017] Calculate the sum of the first product, the second product, and the equivalent thermal conductivity of the radiative thermal conductivity between the two panels to obtain the equivalent thermal conductivity of the cavity core layer;

[0018] Wherein, the equivalent thermal conductivity of the radiative thermal conductivity between the two panels is obtained by multiplying the product of the intermediate parameter, the Stefan-Boltzmann constant, the average temperature of the cavity core layer, and the height of the heat insulation chamber by 4;

[0019] The intermediate parameter is obtained by multiplying the second constant to the power of (the ratio of the cavity unit height to the equivalent cavity diameter of the cavity unit plus the first constant), multiplying by the third constant to the power of the emissivity of the cavity layer, multiplying by the fourth constant to the power of (the sum of the ratio and 1), and then multiplying by the fifth constant.

[0020] In a possible implementation manner, the obtaining the measured heat transfer coefficient of the wall panel to be measured specifically includes:

[0021] Test the measured heat transfer coefficient of the prepared wall panel through the guarded hot box test under the steady-state heat transfer condition.

[0022] In a possible implementation manner, the fitting to obtain the first relationship between the equivalent cavity diameter and the cavity unit height according to different equivalent cavity diameters, different cavity unit heights, and the corresponding theoretical heat transfer coefficients of the wall panels specifically includes:

[0023] Determine the equivalent cavity diameter of a cavity unit and determine a cavity unit height, calculate a theoretical heat transfer coefficient of a wall panel, until the change of the obtained theoretical heat transfer coefficient tends to converge;

[0024] According to multiple groups of equivalent cavity diameters, cavity unit heights, and the theoretical heat transfer coefficient of the wall panel, a first relational expression is obtained by fitting.

[0025] In a possible implementation manner, the specific process of determining the second relational expression between the measured heat transfer coefficient and the theoretical heat transfer coefficient includes:

[0026] According to the prepared cavity unit height and the corresponding prepared equivalent cavity diameter, calculate the corresponding theoretical heat transfer coefficient of the wall panel;

[0027] Calculate the ratio of the measured heat transfer coefficient to the theoretical heat transfer coefficient, and use this ratio as the second relational expression; wherein, the measured heat transfer coefficient is the heat transfer coefficient of the wall panel measured under the steady-state heat transfer condition.

[0028] In a possible implementation manner, the specific process of correcting the theoretical heat transfer coefficient of the wall panel according to the second relational expression to determine the actual heat transfer coefficient includes:

[0029] Multiply the second relational expression by the theoretical heat transfer coefficient to correct the theoretical heat transfer coefficient and determine the actual heat transfer coefficient.

[0030] In a possible implementation manner, the first design parameter includes the current cavity unit height and the current equivalent cavity diameter, and the second design parameter includes the panel thickness. The specific process of determining the first design parameter of the cavity unit in the cavity core layer and the second design parameter of the two-layer panel according to the current cavity unit height and the current equivalent cavity diameter includes:

[0031] According to , calculate the volume of cavity concrete per square meter of the cavity; where d is the wall thickness of the cavity unit, D is the equivalent cavity diameter, H is the current cavity unit height, and n is the number of panel layers;

[0032] According to Calculate the volume of panel concrete per square meter of the wall; where L is the panel thickness;

[0033] According to Calculate the total volume of concrete for the multi-layer multi-cavity wall per square meter; is the total volume of concrete for the multi-layer multi-cavity wall per square meter.

[0034] In a possible implementation manner, the specific process of obtaining the first relational expression between the equivalent cavity diameter and the cavity unit height by fitting according to different equivalent cavity diameters, different cavity unit heights, and the corresponding theoretical heat transfer coefficient of the wall panel includes:

[0035] When it is the first type of wall panel, the first relational expression is D 1,sweet = 147 * exp(-(H + L) / 151) + 144; where D 1,sweetD is the equivalent cavity diameter of the first type of wall panel, H is the height of the cavity unit, and L is the panel thickness;

[0036] When it is the second type of wall panel, the first relational expression is D 2,sweet = 147 * exp(-(H + L) / 151) + 84; where D 2,sweet is the equivalent cavity diameter of the second type of wall panel.

[0037] In a possible implementation, the cavity core layer is filled with a lightweight high thermal resistance material or a high heat enthalpy phase change energy storage material. The lightweight high thermal resistance material includes polyurethane foam; the high heat enthalpy phase change energy storage material includes paraffin, and the high heat enthalpy phase change energy storage material is encapsulated by a polymer material.

[0038] In a possible implementation, the interior of the cavity core layer includes a plurality of core columns. Two cross-sections of the core columns are respectively in contact with two layers of panels; the cross-sectional diameter of the core columns is not less than 10% of the equivalent cavity diameter.

[0039] In a second aspect, the present invention provides a device, including a memory and a processor. The memory is used to store a program, and the processor is used to execute the method according to any one of the first aspect.

[0040] In a third aspect, the present invention provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, it executes the method according to any one of the first aspect.

[0041] By applying the parameter processing method of the multi-layer and multi-cavity wall panel provided by the present invention, the equivalent thermal conductivity of the cavity core layer can be calculated according to the thermal conductivity of the solid part material of the cavity core layer, the thermal conductivity of the gas medium inside the cavity core layer, the cross-sectional area of the cavity wall of the cavity core layer, the total cross-sectional area, and the equivalent thermal conductivity of the radiative thermal conductivity between the two panel layers; the equivalent thermal conductivity of the radiative thermal conductivity is related to the equivalent cavity diameter and the height of the cavity unit of the cavity unit; according to different equivalent cavity diameters and different heights of the cavity unit, the theoretical heat transfer coefficients of different wall panels are calculated; according to different equivalent cavity diameters, different heights of the cavity unit, and the corresponding theoretical heat transfer coefficients of the wall panel, a first relationship between the equivalent cavity diameter and the height of the cavity unit is obtained by fitting; according to the first relationship, the height of the prepared cavity unit and the prepared equivalent cavity diameter of the wall panel to be prepared are determined, and the wall panel to be tested is obtained by pre-preparation according to the height of the prepared cavity unit and the prepared equivalent cavity diameter; the measured heat transfer coefficient of the wall panel to be tested is obtained; the second relationship between the measured heat transfer coefficient and the theoretical heat transfer coefficient is determined; according to the second relationship, the theoretical heat transfer coefficient is corrected to determine the actual heat transfer coefficient; according to the actual heat transfer coefficient and the first relationship, the current height of the cavity unit and the current equivalent cavity diameter are determined; according to the current height of the cavity unit and the current equivalent cavity diameter, the first design parameters of the cavity unit in the cavity core layer and the second design parameters of the two panel layers are determined, so as to design the wall panel through the first design parameters and the second design parameters. The wall panel designed according to the design parameters ensures that the heat insulation performance meets the requirements, and different heat insulation requirements can be met by adjusting the height of the cavity unit, the equivalent cavity diameter, and the number of layers. The heat insulation performance of different walls can be adjusted, which greatly ensures the personalized requirements of the wall heat insulation performance. Further, the equivalent cavity diameter and the height of the cavity unit of the present application are also related to the total volume of concrete of the wall, the total volume of panel concrete, and the total volume of cavity concrete, thus ensuring the balance between the load-bearing capacity and the heat insulation capacity of the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 FIG. 1 is one of the schematic flowcharts of the parameter processing method of the multi-layer and multi-cavity wall panel provided by the embodiment of the present invention;

[0043] FIG. 2(A) is a schematic diagram of the multi-layer and multi-cavity wall panel provided by the present invention;

[0044] FIG. 2(B) is an enlarged schematic diagram of the cavity unit in FIG. 2(A);

[0045] FIG. 2(C) is a schematic diagram of the equivalent cavity diameter and the cavity height of the cavity unit in FIG. 2(B);

[0046] FIG. 3(A) is a schematic diagram of the cavity unit and the core column;

[0047] FIG. 3(B) is an enlarged schematic diagram of the cavity unit and the core column in FIG. 3(A);

[0048] Figure 4 Schematic diagram of the variation law of the theoretical heat transfer coefficient of the first type of wall panel with the cavity height (i.e., wall thickness) and the equivalent cavity diameter;

[0049] Figure 5 Schematic diagram of the variation law of the theoretical heat transfer coefficient of the second type of wall panel with the cavity height (i.e., wall thickness) and the equivalent cavity diameter;

[0050] Figure 6 Schematic diagram of the variation law of the cavity diameter sweet value of the wall panel with the wall thickness and the fitting curve;

[0051] Figure 7(A) is a schematic diagram of 4 panels + 3 honeycombs when the wall thickness is 240 mm;

[0052] Figure 7(B) is a schematic diagram of 4 panels + 3 honeycombs when the wall thickness is 350 mm;

[0053] Figure 7(C) is a schematic diagram of the panel + 3 honeycombs of W-12 when the panel thickness is 50 mm;

[0054] Figure 7(D) is a schematic diagram of the W-123 honeycombs of W-12 when the panel thickness is 45 mm;

[0055] Figure 7(E) is a schematic diagram of 4 panels + 3 honeycombs of W-24 when the panel thickness is 45 mm and the equivalent cavity diameter is 110 mm;

[0056] Figure 7(F) is a schematic diagram of 5 panels + 4 honeycombs of W-37 when the panel thickness is 45 mm and the equivalent cavity diameter is 115 mm;

[0057] Figure 7(G) is a schematic diagram of 6 panels + 5 honeycombs of W49 when the panel thickness is 45 mm and the equivalent cavity diameters are 110 mm and 120 mm respectively;

[0058] Figure 8 One of the schematic diagrams of the process preparation process of the multi-layer multi-cavity wall panel;

[0059] Figure 9 Another schematic diagram of the process preparation process of the multi-layer multi-cavity wall panel;

[0060] Figure 10 According to Figure 8 One of the schematic diagrams of the multi-layer multi-cavity wall panel prepared by the method described;

[0061] Figure 11 According to Figure 8 Another schematic diagram of the multi-layer multi-cavity wall panel prepared by the method described. Specific implementation method

[0062] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0063] The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

[0064] Figure 1 The figure is a schematic flowchart of a parameter processing method for a multi-layer and multi-cavity wall panel provided by an embodiment of the present invention. The multi-layer and multi-cavity wall panel includes a cavity core layer and at least two panel layers, and the cavity core layer is arranged between the two panel layers. The cavity core layer is filled with a lightweight high thermal resistance material or a high heat enthalpy phase change energy storage material. The lightweight high thermal resistance material includes a polyurethane foaming agent to block air heat convection and thermal radiation in the cavity. The high heat enthalpy phase change energy storage material includes paraffin, and the paraffin is encapsulated by a polymer material, which can slow down the impact of outdoor temperature fluctuations on the indoor thermal environment through phase change. The following will be combined with Figure 1 , and the technical solutions of the present invention will be described by specific embodiments. As shown in Figure 1, the present application includes the following steps:

[0065] Step 110, calculate the equivalent thermal conductivity of the cavity core layer according to the thermal conductivity of the solid part material of the cavity core layer, the thermal conductivity of the gas medium inside the cavity core layer, the cross-sectional area of the cavity wall of the cavity core layer, the total cross-sectional area, and the equivalent thermal conductivity of the radiative thermal conductivity between the two panel layers;

[0066] Among them, the equivalent thermal conductivity of the radiative thermal conductivity is related to the equivalent cavity diameter and the height of the cavity unit.

[0067] The multi-layer and multi-cavity wall shown in Figures 2(A)-2(C) is composed of two high-strength surface layers sandwiching the cavity core layer. The multi-layer and multi-cavity wall panel includes two panel layers, and the cavity core layer is composed of multiple cavity units. A cavity unit refers to a hexagonal unit, the equivalent cavity diameter refers to the length of the diagonal of the hexagon, and the cavity wall thickness refers to the wall thickness of the cavity unit. As shown in Figures 3(A) and 3(B), the inside of the cavity core layer includes multiple core columns, and the two cross-sections of the core columns are respectively connected to the two panel layers; the cross-sectional diameter of the core columns is not less than 10% of the equivalent cavity diameter. Through this ratio setting, the cross-sectional area of the core columns is increased, and the stress concentration at this part is reduced, thereby improving the overall bearing capacity. The heat transfer mode of this wall includes three parts: ① heat conduction through the solid part of the cavity core layer; ② radiative conduction between the two surface layers; ③ conduction through the gas medium in the cavity core layer. Considering the above three heat transfer modes comprehensively, the equivalent thermal conductivity of the cavity core layer can be calculated by the following method:

[0068] Calculate the product of the ratio of the cross-sectional area of the cavity wall of the cavity core layer to the total cross-sectional area of the cavity wall of the cavity core layer and the thermal conductivity of the solid part material of the cavity core layer to obtain a first product;

[0069] Calculate the product of (1 minus the ratio of the cross-sectional area of the cavity wall of the cavity core layer to the total cross-sectional area of the cavity wall of the cavity core layer) and the thermal conductivity of the gas medium inside the cavity core layer to obtain a second product;

[0070] Calculate the sum of the first product, the second product and the equivalent thermal conductivity of the radiative thermal conductivity between the two panels to obtain the equivalent thermal conductivity of the cavity core layer.

[0071] Among them, the equivalent thermal conductivity of the radiative thermal conductivity between the two panels is obtained by multiplying the product of the intermediate parameter, the Stefan-Boltzmann constant, the average temperature of the cavity core layer, and the height of the heat insulation chamber by 4;

[0072] The intermediate parameter is obtained by multiplying the second constant power of (the ratio of the height of the cavity unit to the equivalent cavity diameter of the cavity unit plus the first constant), multiplying the third constant power of the emissivity of the cavity layer, multiplying the fourth constant power of (the sum of the ratio and 1), and then multiplying by the fifth constant.

[0073] Specifically, the equivalent thermal conductivity of the cavity core layer can be calculated according to the following formula:

[0074]

[0075] Among them, k e is the equivalent thermal conductivity of the cavity core layer, k1 is the thermal conductivity of the solid part material of the cavity core layer, k2 is the thermal conductivity of the gas medium inside the cavity core layer, k3 is the equivalent thermal conductivity of the radiative thermal conductivity between the two panels, A0 is the cross-sectional area of the cavity wall of the cavity core layer, and A is the total cross-sectional area of the cavity wall of the cavity core layer.

[0076] According to Calculate the equivalent thermal conductivity of the radiative thermal conductivity between the two panels. Among them, σ is the Stefan-Boltzmann constant, ξ is the intermediate parameter, and Tavg is the average temperature of the cavity core layer. According to Calculate the intermediate parameter; where η = H / D, D is the equivalent cavity diameter of the cavity unit, ε is the emissivity of the cavity core layer, H is the height of the cavity unit, the first constant is 0.3, the second constant is -0.69, the third constant is 1.63, the fourth constant is -0.89, and the fifth constant is 0.664.

[0077] Through trial calculation, it is found that the wall thickness d of the cavity unit has little influence on the theoretical heat transfer coefficient of the wall. Therefore, the following mainly calculates and discusses the theoretical heat transfer coefficient of the wall for different equivalent cavity diameters D and different cavity unit heights H.

[0078] Step 120: Calculate different theoretical heat transfer coefficients of the wall panels based on the equivalent thermal conductivity of the cavity core layer.

[0079] Specifically, select different materials, assign different equivalent cavity diameters and cavity unit heights, so as to determine the equivalent thermal conductivity of the cavity core layer. Then, according to the equivalent cavity diameter, cavity unit height and the equivalent thermal conductivity of the cavity core layer, refer to Article 3.4 of GB50176-2016 to calculate the theoretical heat transfer coefficient of the multi-layer multi-cavity wall panel. In this application, the wall panel design can be carried out taking three wall base materials of ultra-high performance concrete (UHPC), self-compacting concrete (SCC), and glass fiber reinforced gypsum (GRG) as examples. The values of the material thermal conductivity and the wall panel structure dimensions are shown in Table 1. For the first type of wall panel, the surface layer material selects UHPC as the surface layer base material and SCC as the cavity cavity base material; for the second type of wall panel, both the surface layer and the cavity cavity base material select GRG; the cavity wall thickness and the surface layer thickness of both types of wall panels adopt the values in Table 1. The unit of the thermal conductivity is W / (m·K).

[0080] Table 1

[0081]

[0082] Initially select a multi-layer multi-cavity wall with 2 surface layers + 1 cavity layer for calculation. The theoretical heat transfer coefficient of the first type of wall panel (surface layer UHPC + cavity SCC) is shown in Table 2, and the unit is W / (m 2 ·K).

[0083] Table 2

[0084]

[0085] Among them, the wall thickness includes the sum of the cavity unit height and the panel thickness. When there are multiple panels, the panel thickness refers to the sum of the thicknesses of multiple panels. When there are multiple cavity units, the cavity unit height refers to the sum of the heights of multiple cavity units. As for the number of panel layers and the number of cavity units in this application, they can be set according to actual needs, and this application does not limit this.

[0086] The variation laws of the theoretical heat transfer coefficient of the obtained first type of wall panel (surface layer UHPC + cavity SCC) with the wall thickness and the equivalent cavity diameter are shown in Figure 4 , from Figure 4It can be seen that the theoretical heat transfer coefficient of the wall gradually decreases as the height of the cavity unit and the equivalent cavity diameter increase. For a 120-mm-thick wall, after the equivalent cavity diameter of the cavity unit increases to 210 mm, the change in the equivalent cavity diameter has no significant effect on the theoretical heat transfer coefficient of the wall. For a 240-mm-thick wall, after the equivalent cavity diameter of the cavity unit increases to 180 mm, the change in the equivalent cavity diameter has no significant effect on the theoretical heat transfer coefficient of the wall. For walls with a thickness of more than 370 mm, after the equivalent cavity diameter of the cavity unit increases to 150 mm, the change in the equivalent cavity diameter has no significant effect on the heat transfer coefficient of the wall. For walls with different equivalent cavity diameters of the cavity unit, after the wall thickness increases to 370 mm, the change in the wall thickness has no significant effect on the heat transfer coefficient of the wall. It can be found that whether increasing the panel thickness or the equivalent cavity diameter can significantly reduce the heat transfer coefficient of the wall panel, but there is also a certain gain limit. For the first type of wall panel, when the wall thickness exceeds 370 mm and the cavity diameter exceeds 210 mm, further increasing the wall thickness and the equivalent cavity diameter has a very limited effect on the theoretical heat transfer coefficient of the wall panel, but it will increase the weight of the wall panel (increasing the wall thickness) and reduce the bearing capacity of the wall panel (increasing the cavity diameter). Therefore, for the first type of wall panel, it is recommended to adjust the heat transfer coefficient of the wall panel according to the heat insulation performance requirements within a wall thickness of 370 mm and a cavity diameter of 200 mm. In the following text, these two size limits are respectively called the "wall thickness sweet value" and the "cavity diameter sweet value".

[0087] The calculation results of the second type of wall panel (surface layer GRG + cavity GRG) are shown in Table 3. Table 3 shows the theoretical heat transfer coefficient of the second type of wall panel, with the unit of W / (m 2 ·K).

[0088] Table 3

[0089]

[0090] The variation law of the theoretical heat transfer coefficient of the second type of wall panel (surface layer GRG + cavity GRG) with the height of the cavity unit (i.e., the wall thickness) and the equivalent cavity diameter is as Figure 5 shown. As the panel thickness and the equivalent cavity diameter increase, the variation trend of the theoretical heat transfer coefficient of the second type of wall panel is different from that of the first type of wall panel. When the second type of wall panel exceeds the wall thickness sweet value and the cavity diameter sweet value, the increase in the wall thickness and the equivalent cavity diameter will instead cause an increase in the theoretical heat transfer coefficient of the wall panel. At the same time, the wall thickness sweet values of the two types of wall panels are similar, both around 370 mm, but the cavity diameter sweet value of the second type of wall panel is only about 50% of that of the first type of wall panel. This shows that the cavity diameter sweet value of the wall panel is greatly affected by the thermal conductivity of the base material, and the two are approximately in a direct proportion relationship. A larger thermal conductivity of the base material means a larger cavity diameter sweet value.

[0091] Step 130: According to different equivalent cavity diameters, different cavity unit heights, and the corresponding theoretical heat transfer coefficients of the wall panels, fit the first relationship between the equivalent cavity diameter and the cavity unit height;

[0092] The variation law of the cavity diameter sweet value of two types of wall panels with the wall thickness is as follows Figure 6 shown. It can be seen that the cavity diameter sweet values of both types of wall panels gradually decrease with the increase of the wall thickness. By fitting the test data, the first relationship between the equivalent cavity diameter and the cavity unit height of the two types of wall panels can be obtained.

[0093] Specifically, the equivalent cavity diameter of a cavity unit can be determined, and the height of a cavity unit can be determined. A theoretical heat transfer coefficient is calculated until the change of the obtained theoretical heat transfer coefficient tends to converge; at this time, the tendency to converge is to tend to be stable. Based on multiple groups of equivalent cavity diameters, cavity unit heights, and the theoretical heat transfer coefficient of the wall panel, the first relationship is obtained by fitting.

[0094] When it is the first type of wall panel, the first relationship is D 1,sweet = 147 * exp(-(H + L) / 151) + 144; where D 1,sweet is the equivalent cavity diameter of the first type of wall panel, H is the height of the cavity unit, and L is the panel thickness;

[0095] When it is the second type of wall panel, the first relationship is D 2,sweet = 147 * exp(-(H + L) / 151) + 84; where D 2,sweet is the equivalent cavity diameter of the second type of wall panel.

[0096] It can be understood that L refers to the sum of the thicknesses of all panels at this time, and H refers to the sum of the equivalent unit heights of all layers. As for how many layers of panels are specifically set and how many layers of cavity core layers are set, the present application does not limit this.

[0097] Step 140, according to the first relationship, determine the preliminary cavity unit height and the preliminary equivalent cavity diameter of the wall panel to be prepared, and perform preliminary preparation according to the preliminary cavity unit height and the preliminary equivalent cavity diameter to obtain the wall panel to be tested;

[0098] Specifically, taking the first type of wall panel as an example, based on the first relationship, determine the preliminary equivalent cavity diameter and the preliminary cavity unit height. At this time, the preliminary equivalent cavity diameter refers to the equivalent cavity diameter of the wall panel to be prepared, and the preliminary cavity unit height refers to the cavity unit height of the wall panel to be prepared. The wall panel to be tested is the wall panel after the preparation of the wall panel to be prepared is completed. Cavity units in the 2 - layer + 1 cavity core layer with a cavity diameter sweet value of 200 mm and a wall thickness sweet value of 250 mm are respectively prepared, the cavity wall thickness and the panel thickness are both 10 mm, and the cavity unit height is 50 mm.

[0099] Specifically, according to the variation laws of the theoretical heat transfer coefficient of the single-layer multi-layer multi-cavity wall with the wall thickness and the equivalent cavity diameter, the equivalent cavity diameter of the cavity unit is optimized for different wall thicknesses to design the cavity. The wall design parameters and the theoretical heat transfer coefficient are shown in Table 4 (the design parameters not listed are the same as those in Table 1). Table 4 shows the design parameters and the theoretical heat transfer coefficient of the multi-layer multi-cavity wall with different thicknesses.

[0100] Table 4

[0101]

[0102] Table 5 lists the requirements for the heat transfer coefficient of the external wall in the current relevant energy-saving design standards for residential buildings.

[0103] Table 5

[0104]

[0105] By comparing Table 5, it can be found that for the first type of wall panel, the wall with a wall thickness exceeding 490 mm and an equivalent cavity diameter of the cavity unit exceeding 150 mm can meet the requirements for the heat transfer coefficient of the external wall in the energy-saving design standard for residential buildings (energy saving of 75%) (DB13(J) 185-2020); for the second type of wall panel, the wall with a wall thickness exceeding 120 mm and an equivalent cavity diameter exceeding 210 mm can meet the requirements for the heat transfer coefficient of the external wall in the energy-saving design standard for residential buildings (energy saving of 75%) (DB13(J) 185-2020), and when the wall thickness is greater than 120 mm, the wall with an equivalent cavity diameter of the cavity unit less than 210 mm can still meet the requirements for the heat transfer coefficient of the external wall in DB13(J) 185.

[0106] Step 150, obtain the measured heat transfer coefficient of the wall panel to be tested;

[0107] Specifically, after the wall panel to be tested is prepared, the measured heat transfer coefficient of the prepared wall panel is tested through the guarded hot box test under the steady-state heat transfer condition. The test results are shown in Table 6, and Table 6 is the guarded hot box test result table.

[0108] Table 6

[0109]

[0110] Step 160, determine the second relationship between the measured heat transfer coefficient and the theoretical heat transfer coefficient;

[0111] Specifically, according to the height of the preliminary cavity unit and the corresponding preliminary equivalent cavity diameter, the theoretical heat transfer coefficient of the corresponding wall panel is calculated; the ratio of the measured heat transfer coefficient to the theoretical heat transfer coefficient is calculated, and the ratio is used as the second relationship; among them, the measured heat transfer coefficient is the heat transfer coefficient of the wall panel to be tested measured under the steady-state heat transfer condition.

[0112] Specifically, the calculated values in Table 6 are the theoretical heat transfer coefficients obtained in Step 110. It can be seen from Table 6 that the measured value of the measured heat transfer coefficient of the wall panel to be measured is approximately 0.6 times the theoretical heat transfer coefficient calculated in Step 110. By fitting the calculated values and the measured values in Table 6, a second relational expression can be obtained. Considering the test error and sufficient heat transfer performance reserve, the second relational expression can be expressed as the ratio of the measured heat transfer coefficient to the theoretical heat transfer coefficient.

[0113] Step 170, according to the second relational expression, correct the theoretical heat transfer coefficient to determine the actual heat transfer coefficient;

[0114] Specifically, the theoretical heat transfer coefficient is corrected by multiplying the second relational expression by the theoretical heat transfer coefficient, so that the corrected theoretical heat transfer coefficient is used as the actual heat transfer coefficient.

[0115] Step 180, according to the actual heat transfer coefficient and the first relational expression, determine the current cavity unit height and the current equivalent cavity diameter;

[0116] Specifically, after determining the actual heat transfer coefficient, the actual heat transfer coefficient can be substituted into Step 120 to re-determine the equivalent cavity diameter and the cavity unit height, and the determined equivalent cavity diameter at this time is used as the current equivalent cavity diameter, and the determined cavity unit height at this time is used as the equivalent cavity unit height. And according to the determined cavity unit height, combined with the panel thickness of the wall panel to be prepared currently, the wall thickness sweet value is determined.

[0117] Step 190, according to the current cavity unit height and the current equivalent cavity diameter, determine the first design parameters of the cavity units in the cavity core layer and determine the second design parameters of the two-layer panels, so as to design the wall panel through the first design parameters and the second design parameters.

[0118] Among them, the first design parameters include the current cavity unit height and the current equivalent cavity diameter, and the second design parameters include the panel thickness, the number of panel layers, the volume of cavity concrete per square meter of the cavity, the volume of panel concrete per square meter of the wall, and the total volume of concrete of the multi-layer multi-cavity wall per square meter. The cross-sectional shapes of the cavity units in the multi-layer multi-cavity wall include but are not limited to circular, rectangular, and regular hexagonal, and the cavity design parameters and the total volume of concrete of the multi-layer multi-cavity wall per square meter need to satisfy the following relationship.

[0119] According to , calculate the volume of the cavity layer concrete per square meter of the cavity; where d is the cavity wall thickness, D is the equivalent cavity diameter, H is the current cavity unit height, and n is the number of panel layers; 1000 represents the projected area of the wall in the horizontal direction, and the unit is: mm 2 .

[0120] According to Calculate the volume of panel concrete per square meter of the wall; where L is the panel thickness;

[0121] According to Calculate the total volume of concrete for each square meter of multi - layer multi - cavity wall; it is the total volume of concrete for each square meter of multi - layer multi - cavity wall.

[0122] Wherein is the total volume of concrete for each square meter of multi - layer multi - cavity wall, with the unit of mm 3 ; is the volume of panel concrete in each square meter of wall, with the unit of mm 3 ; is the volume of cavity concrete in each square meter of wall, with the unit of mm 3 ; The value range of the panel thickness L is 1 - 60mm; the value range of the number of panel layers n is 2 - 10 layers (rounded); the equivalent cavity diameter D, that is, the inner diameter of the cavity, has a value range of 10 - 720mm; the value range of the cavity wall thickness d is 0.1 - 60mm; the value range of the cavity height H is 1 - 720mm.

[0123] Figures 7(A) - 7(G) are schematic diagrams of multi - layer multi - cavity wall panels designed according to the parameters determined by the parameter processing method of the multi - layer multi - cavity wall panels of the present application. It can be seen from Figures 7(A) - 7(G) that on the premise of determining the equivalent cavity diameter and the equivalent height of the cavity unit, different heat - preservation effects can be achieved by adjusting the panel thickness and the number of panel layers. On the premise of determining the panel thickness and the number of panel layers, etc., different heat - preservation effects can also be achieved by adjusting the equivalent cavity diameter and the cavity unit height, and specific designs can be made according to user requirements to ensure personalized settings of heat - preservation and heat - insulation effects.

[0124] In one example, as Figure 8 shown Figure 8 Schematic diagram of the preparation of multi - layer multi - cavity wall panels based on the parameter processing of multi - layer multi - cavity wall panels. In Figure 8 , 1 represents the outer wall panel, 2 represents the cavity layer, 3 represents the sandwich panel, 4 represents the second - layer cavity layer, and 5 represents the inner wall panel. As Figure 8 shown, it includes the following steps:

[0125] Step 1, pour the outer wall panel 1 and perform roughening treatment on the inner side of the outer wall panel 1;

[0126] Step 2, pour the first - layer cavity layer 2. The top of the cavity layer 2 is a sealed thin layer, and the thickness of the thin layer ≤ 5mm. Perform roughening treatment on the sealed thin layer;

[0127] Step 3, pour the sandwich panel 3 and perform roughening treatment on the inner side of the sandwich panel 3;

[0128] Step 4, pour the second - layer cavity layer 4. The top of the cavity layer 4 is a sealed thin layer, and the thickness of the thin layer ≤ 5mm. Perform roughening treatment on the sealed thin layer;

[0129] Step 5: Pour the interior wall panel 5, and the interior wall panel 5 can be customized in terms of materials, patterns, and textures according to the indoor decoration requirements.

[0130] In another example, as Figure 9 shown, the preparation process can be further optimized. Ribs are added at the connections between the honeycomb-surface layer and the honeycomb-honeycomb layer to improve the connection reliability between layers. Taking the preparation processes of a single-layer honeycomb (U-1 unit) and a double-layer honeycomb (U-2) unit as examples, the preparation process examples are given as follows:

[0131] Step 1: Assemble the steel formwork. The steel formwork consists of four side plates, one bottom plate, and several hollow honeycombs. The components are connected by bolts. Circular holes with a diameter of D20mm and a height of H10mm are reserved on the bottom plate according to the orange and red dots for rib positioning; Figure 9

[0132] Step 2: First pouring. Pour SCC into the interior of the steel formwork, vibrate it thoroughly, and cure it indoors with a film covering for 24h;

[0133] Step 3: First demolding. Demold the steel formwork component by component. Cylindrical ribs are formed at some honeycomb nodes of the formed unit at the aforementioned "rib positioning" positions, which is convenient for forming a reliable connection with the SCC for the second pouring;

[0134] Step 4: Fill with foaming agent. Fill the honeycomb cavities with foaming agent, and cut the overflowing foaming agent flat along the large surface;

[0135] Step 5: Second pouring. Manually roughen the contact surface for the second pouring, support the formwork along the side of the unit, and then pour SCC to form the panel (or use colored SCC to pour the surface layer);

[0136] Step 6: Second demolding. Demold after curing indoors with a film covering for 24h, and continue to cure indoors with a film covering for 28d.

[0137] In addition, after the first demolding of the U-1 unit, do not fill it with foaming agent. When pouring for the second time, first support the formwork to pour the surface layer and roughen the contact surface of the formed unit. Invert the formed unit onto the surface layer concrete before the surface layer concrete starts to set. See Figures 10 - 11 ​, the multi-layer and multi-cavity wall panel includes a panel layer 10 and a cavity layer which are stacked in sequence. The cavity layer is provided with three layers, namely a first cavity layer 11, a second cavity layer 12 and a third cavity layer 13. Each cavity layer includes a plurality of cavity units 14 with a hexagonal cross-section. The cavity unit is a heat-insulating chamber. The hexagonal cavity units are arranged in a honeycomb pattern, and the cavity walls of the cavity units between adjacent two cavity layers are arranged with staggered ribs to achieve the best load-bearing effect. Both the panel layer and the cavity layer sealing layer are based on concrete. To enhance the heat-insulating effect of the panel layer and the cavity layer, the panel layer uses ultra-high performance concrete, and the cavity layer uses vitrified micro-bead thermal insulation concrete. Among them, the ratio of the total volume of the concrete used in the cavity layer to the total volume of the concrete used in the panel layer ranges from 0.035 to 24.827.

[0138] It can be understood that in this application, the cavity can be formed first and then filled with materials, or the cavity materials can be positioned first and then the cavity wall can be prepared using the cavity materials as a mold. The implementation of this application is not affected by the sequence of the process preparation.

[0139] During the preparation, the thickness L of the panel layer 10 is 10 mm, the wall thickness d of the cavity unit 14 is 6 mm, the value of the equivalent cavity D of the cavity unit is 365 mm, the total height of the cavity unit is also 365 mm, the cavity height of the first cavity layer and the third cavity layer is 35 mm, and the cavity unit height of the second cavity layer is 295 mm. It can be calculated from the formula in step 190 that the ratio of the total volume of the concrete used in the cavity layer to the total volume of the concrete used in the panel layer is 0.302.

[0140] When the wall panel is used for heat insulation and filling, the best value for the cavity unit height of the second cavity layer 12 is 300 mm, and the best value for the cavity unit height of the first cavity layer 11 and the third cavity layer 13 is 45 mm. The thickness L of the panel layer 10 is 10 mm, the wall thickness d of the cavity unit 14 is 6 mm, and the value of the equivalent cavity diameter D is 180 mm. It can be calculated from the formula in step 190 that the ratio of the total volume of the concrete used in the cavity layer to the total volume of the concrete used in the panel layer is 0.66.

[0141] When the wall panel is used for heat insulation and load-bearing, the cavity unit height of the second cavity layer 12 is 97.5 mm, the cavity unit height of the first cavity layer 11 and the third cavity layer 13 is 30 mm, the thickness L of the panel layer 10 is 10 mm, the wall thickness d of the heat-insulating chamber 14 is 6 mm, and the value of the equivalent cavity diameter D is 180 mm. It can be calculated from the formula in step 190 that the ratio of the total volume of the concrete used in the cavity layer to the total volume of the concrete used in the panel layer is 0.267.

[0142] By applying the parameter processing method of the multi-layer and multi-cavity wall panel provided by the present invention, the equivalent thermal conductivity of the cavity core layer can be calculated according to the thermal conductivity of the solid part material of the cavity core layer, the thermal conductivity of the gas medium inside the cavity core layer, the cross-sectional area of the cavity wall of the cavity core layer, the total cross-sectional area, and the equivalent thermal conductivity of the radiative thermal conductivity between the two panel layers; the equivalent thermal conductivity of the radiative thermal conductivity is related to the equivalent cavity diameter and the cavity unit height of the cavity unit; according to different equivalent cavity diameters and different cavity unit heights, the theoretical heat transfer coefficients of different wall panels are calculated; according to different equivalent cavity diameters, different cavity unit heights, and the corresponding theoretical heat transfer coefficients, a first relationship between the equivalent cavity diameter and the cavity unit height is obtained by fitting; according to the first relationship, the prepared cavity unit height and the prepared equivalent cavity diameter of the wall panel to be prepared are determined, and the wall panel to be tested is obtained by pre-preparation according to the prepared cavity unit height and the prepared equivalent cavity diameter; the measured heat transfer coefficient of the wall panel to be tested is obtained; a second relationship between the measured heat transfer coefficient and the theoretical heat transfer coefficient is determined; according to the second relationship, the theoretical heat transfer is corrected to determine the actual heat transfer coefficient; according to the actual heat transfer coefficient and the first relationship, the current cavity unit height and the current equivalent cavity diameter are determined; according to the current cavity unit height and the current equivalent cavity diameter, the first design parameters of the cavity unit in the cavity core layer and the second design parameters of the two panel layers are determined, so as to design the wall panel through the first design parameters and the second design parameters. The wall panel designed according to the design parameters ensures that the heat insulation performance meets the requirements, and different heat insulation requirements can be met by adjusting the cavity unit height, the equivalent cavity diameter, and the number of layers, and the adjustment of the heat insulation performance of different walls can be realized, greatly ensuring the personalized requirements of the wall heat insulation performance. Further, the equivalent cavity diameter and the cavity unit height of the present application are also related to the total concrete volume of the wall, the total concrete volume of the panel, and the total concrete volume of the cavity, thus ensuring the balance between the load-bearing capacity and the heat preservation capacity of the wall.

[0143] Embodiment 2 of the present invention provides a device, including a memory and a processor. The memory is used for storing programs, and the memory can be connected to the processor through a bus. The memory can be a non-volatile memory, such as a hard disk drive and a flash memory. Software programs and device driver programs are stored in the memory. The software program can execute various functions of the method provided by Embodiment 2 of the present invention; the device driver program can be a network and interface driver program. The processor is used for executing the software program, and when the software program is executed, the method provided by Embodiment 1 of the present invention can be realized.

[0144] Embodiment 3 of the present invention provides a computer program product containing instructions. When the computer program product runs on a computer, the computer is enabled to execute the method provided by Embodiment 1 of the present invention.

[0145] Embodiment 4 of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method provided in Embodiment 1 of the present invention is implemented.

[0146] Those skilled in the art should also be able to further realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Skilled professionals can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0147] The steps of the methods or algorithms described in combination with the embodiments disclosed herein can be implemented by hardware, software modules executed by a processor, or a combination of the two. The software modules can be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium well-known in the technical field.

[0148] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A parameter processing method for a multi-layer multi-cavity wall panel, the multi-layer multi-cavity wall panel comprising a cavity core layer and at least two face panels, the cavity core layer being arranged between the face panels, characterized in that: The method comprises: The equivalent thermal conductivity of the cavity core layer is calculated according to the thermal conductivity of the solid part material of the cavity core layer, the thermal conductivity of the gas medium inside the cavity core layer, the cross-sectional area of ​​the cavity core layer wall, the total cross-sectional area and the equivalent thermal conductivity of the radiation thermal conductivity between the two panels; the equivalent thermal conductivity of the radiation thermal conductivity is related to the equivalent cavity diameter of the cavity unit and the cavity unit height; According to the equivalent thermal conductivity of the cavity core layer, the theoretical heat transfer coefficient of the wall panels with different configuration parameters is calculated; According to different equivalent cavity diameters, different cavity unit heights and corresponding theoretical heat transfer coefficients, a first relationship between the equivalent cavity diameter and the cavity unit height is obtained by fitting; According to the first relationship, determine the prepared cavity unit height and the prepared equivalent cavity diameter of the pre-prepared wallboard, and perform pre-preparation according to the prepared cavity unit height and the prepared equivalent cavity diameter to obtain the wallboard to be tested; Obtaining the measured heat transfer coefficient of the wall panel to be tested; Determine a ratio of the measured heat transfer coefficient to the theoretical heat transfer coefficient, and use the ratio as a second relationship; According to the product of the second relationship and the theoretical heat transfer coefficient, the theoretical heat transfer coefficient is corrected to determine the actual heat transfer coefficient; Determine a current cavity unit height and a current equivalent cavity diameter according to the actual heat transfer coefficient and the first relationship; According to the current cavity unit height and the current equivalent cavity diameter, the first design parameters of the cavity unit in the cavity core layer and the second design parameters of the two-layer panel are determined, so as to design the wall panel according to the first design parameters and the second design parameters.

2. The method according to claim 1, characterized in that The calculation of the equivalent thermal conductivity of the cavity core layer according to the thermal conductivity of the solid part material of the cavity core layer, the thermal conductivity of the gas medium inside the cavity core layer, the cross-sectional area of ​​the cavity core layer wall, the total cross-sectional area and the equivalent thermal conductivity of the radiation thermal conductivity between the two panels specifically includes: Calculate the product of the ratio of the cross-sectional area of ​​the cavity core layer wall to the total cross-sectional area of ​​the cavity core layer wall and the thermal conductivity of the solid part material of the cavity core layer to obtain a first product; The second product is obtained by subtracting the ratio of the cross-sectional area of ​​the cavity core layer wall to the total cross-sectional area of ​​the cavity core layer wall from 1 and multiplying the thermal conductivity of the gas medium inside the cavity core layer by 1; Calculating the sum of the first product, the second product and the equivalent thermal conductivity of the radiation thermal conductivity between the two panels to obtain the equivalent thermal conductivity of the cavity core layer; The equivalent thermal conductivity coefficient of the radiation thermal conductivity between the two panels is obtained by multiplying the product of the intermediate parameter, the Stefan-Boltzmann constant, the average temperature of the cavity core layer, and the height of the insulation cavity by 4; The intermediate parameter is obtained by adding the second constant to the power of the first constant to the ratio of the cavity unit height to the equivalent cavity diameter of the cavity unit, multiplying the third constant power of the emissivity of the cavity layer by the fourth constant power of the sum of the ratio and 1, and then multiplying by the fifth constant.

3. The method according to claim 1, characterized in that The first relationship between the equivalent cavity diameter and the cavity unit height is obtained by fitting according to different equivalent cavity diameters, different cavity unit heights and corresponding wallboard theoretical heat transfer coefficients, specifically including: Determine the equivalent cavity diameter of a cavity unit and determine the height of a cavity unit, and calculate a theoretical heat transfer coefficient of a wall panel until the change of the obtained theoretical heat transfer coefficient tends to converge; According to multiple sets of equivalent cavity diameters, cavity unit heights and wall panel theoretical heat transfer coefficients, the first relationship is obtained by fitting.

4. The method according to claim 1, characterized in that: The measured heat transfer coefficient is the heat transfer coefficient of the wall panel measured under a steady-state heat transfer state.

5. The method according to claim 1, characterized in that The first design parameter includes the current cavity unit height and the current equivalent cavity diameter, the second design parameter includes the panel thickness, and the first design parameter of the cavity unit in the cavity core layer and the second design parameter of the two-layer panel are determined according to the current cavity unit height and the current equivalent cavity diameter. Specifically, the method includes: according to , calculate the cavity concrete volume in each flat cavity; where d is the cavity wall thickness of the cavity unit, D is the equivalent cavity diameter, H is the current cavity unit height, and n is the number of panel layers; according to Calculate the concrete volume of the panel per square meter of the wall; where L is the thickness of the panel; according to Calculate the total concrete volume per square meter of multi-layer and multi-cavity walls; It is the total concrete volume of multi-layer and multi-cavity walls per square meter.

6. The method according to claim 1, characterized in that The first relationship between the equivalent cavity diameter and the cavity unit height is obtained by fitting according to different equivalent cavity diameters, different cavity unit heights and corresponding wallboard theoretical heat transfer coefficients, specifically including: When it is the first type of wallboard, the first relationship is D 1,sweet =147*exp(-(H+L) / 151)+144; where D 1,sweet is the equivalent cavity diameter of the first type of wall panel, H is the cavity unit height, and L is the panel thickness; When it is the second type of wallboard, the first relationship is D 2,sweet =147*exp(-(H+L) / 151)+84; where D 2,sweet is the equivalent cavity diameter of the second type of wall panel.

7. The method according to claim 1, characterized in that The core layer of the cavity is filled with a lightweight high thermal resistance material or a high thermal enthalpy phase change energy storage material, wherein the lightweight high thermal resistance material includes a polyurethane foaming agent; the high thermal enthalpy phase change energy storage material includes paraffin, and the high thermal enthalpy phase change energy storage material is encapsulated by a polymer material.

8. The method according to claim 1, characterized in that: The cavity core layer includes a plurality of core columns, and two cross sections of the core columns are respectively connected to two layers of panels; the cross-sectional semi-diameter of the core column is not less than 10% of the equivalent cavity diameter.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 8 is performed.

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