Airtight film material application performance evaluation method, device, equipment and medium

Abstract

The invention relates to the technical field of computers, in particular to an airtight film material application performance evaluation method, device and equipment and a medium. Firstly, multiple groups of environment data for simulating indoor and outdoor environments are obtained through an environment simulation experiment table; based on the multiple sets of environment data, the air permeation amount in gaps of the doors and windows is obtained; acquiring indoor temperature and outdoor temperature when the door and window are made of the airtight film material; based on the indoor temperature and the outdoor temperature, cold air heat consumption is obtained; obtaining the mass resistance of a hole gap, the sectional area of the hole gap, the indoor humidity and the outdoor humidity when the window is made of the airtight film material; the moisture mass transfer rate is obtained based on the mass resistance of the hole gap, the sectional area of the hole gap, the indoor humidity and the outdoor humidity, and the application performance of the airtight film material is evaluated based on the air permeation amount in the gap, the cold air heat consumption amount and the moisture mass transfer rate. Therefore, the technical problem of how to evaluate the application performance of the airtight film material is solved.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and in particular to a method, device, equipment and medium for evaluating the application performance of an airtight film material. Background Art

[0002] At present, the test and evaluation of the application effect of airtight membrane materials is mainly guided by the evaluation of the door and window system, and no requirements are made on the performance of the material itself, that is, the airtightness and watertightness of the whole system after the airtight membrane is installed on the door and window are tested to observe the overall application effect. However, the airtight membrane is only a part of the door and window system, and there is no targeted test and evaluation of the application effect of the airtight membrane.

[0003] In the related art, it is impossible to systematically test and evaluate the application effect of airtight membrane materials.

[0004] Based on this, there is an urgent need for an airtight membrane material application performance evaluation method, device, equipment and medium to solve the technical problem of how to evaluate the application performance of airtight membrane materials. Summary of the invention

[0005] In order to solve the technical problem of how to evaluate the application performance of an airtight film material, an embodiment of the present invention provides a method, a device, a equipment and a medium for evaluating the application performance of an airtight film material.

[0006] In a first aspect, an embodiment of the present invention provides a method for evaluating the application performance of an airtight film material, comprising:

[0007] Acquire multiple sets of environmental data simulating indoor and outdoor environments; wherein the environmental data include air flow at the gap simulating the indoor and outdoor environments and the pressure difference on both sides of the gap simulating the indoor and outdoor environments;

[0008] Based on the multiple sets of environmental data, the air permeability in the gaps of doors and windows is obtained; wherein the air permeability in the gaps is used to characterize the airtightness performance of the airtight film material;

[0009] Obtaining the indoor temperature and outdoor temperature when the doors and windows have been using the airtight film material;

[0010] Based on the indoor temperature and the outdoor temperature, the heat consumption of cold air is obtained; wherein the heat consumption of cold air is used to characterize the heat insulation performance of the airtight film material;

[0011] Obtaining the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity when the window has been equipped with the airtight film material;

[0012] Based on the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity, a moisture mass transfer rate is obtained; wherein the moisture mass transfer rate is used to characterize the humidity performance of the airtight membrane material;

[0013] The application performance of the airtight membrane material is evaluated based on the air permeation in the gap, the heat consumption of the cold air and the moisture mass transfer rate.

[0014] In a second aspect, an embodiment of the present invention further provides an airtight film material application performance evaluation device, comprising:

[0015] A first acquisition module is used to acquire multiple sets of environmental data simulating indoor and outdoor environments; wherein the environmental data includes air flow at the gap simulating the indoor and outdoor environments and the pressure difference on both sides of the gap simulating the indoor and outdoor environments;

[0016] A first data processing module is used to obtain the air permeability in the gaps of doors and windows based on the multiple sets of environmental data; wherein the air permeability in the gaps is used to characterize the airtightness performance of the airtight film material;

[0017] A second acquisition module is used to acquire the indoor temperature and outdoor temperature when the doors and windows have used the airtight film material;

[0018] A second data processing module is used to obtain the heat consumption of cold air based on the indoor temperature and the outdoor temperature; wherein the heat consumption of cold air is used to characterize the thermal insulation performance of the airtight film material;

[0019] A third acquisition module is used to obtain the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity when the window has used the airtight film material;

[0020] A third data processing module is used to obtain a moisture mass transfer rate based on the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity; wherein the moisture mass transfer rate is used to characterize the humidity performance of the airtight membrane material;

[0021] An evaluation module is used to evaluate the application performance of the airtight membrane material based on the air permeability in the gap, the heat consumption of the cold air and the moisture mass transfer rate.

[0022] In a third aspect, an embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the method described in any embodiment of the present invention is implemented.

[0023] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed in a computer, causes the computer to execute the method described in any embodiment of the present invention.

[0024] The embodiment of the present invention provides a method, device, equipment and medium for evaluating the application performance of airtight film materials. First, multiple sets of environmental data simulating indoor and outdoor environments are obtained; based on the multiple sets of environmental data, the air permeability in the gaps of doors and windows is obtained; the indoor temperature and outdoor temperature when the doors and windows have used airtight film materials are obtained; based on the indoor temperature and outdoor temperature, the heat consumption of cold air is obtained; the mass resistance of the hole gap when the window has used airtight film materials, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity are obtained; based on the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity, the moisture mass transfer rate is obtained, and the application performance of the airtight film material is evaluated based on the air permeability in the gap, the heat consumption of cold air and the moisture mass transfer rate. Thus, the technical problem of how to evaluate the application performance of airtight film materials is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a flow chart of a method for evaluating the application performance of an airtight membrane material provided by an embodiment of the present invention;

[0027] Figure 2 is a hardware architecture diagram of an electronic device provided by an embodiment of the present invention;

[0028] Figure 3 It is a structural diagram of an airtight film material application performance evaluation device provided by an embodiment of the present invention;

[0029] Figure 4 is a schematic diagram of the structure of a device for simulating indoor and outdoor environments provided by an embodiment of the present invention;

[0030] Figure 5 It is a schematic diagram of the appearance of a device for simulating indoor and outdoor environments provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Please refer to Figure 1 The embodiment of the present invention provides a method for evaluating the application performance of an airtight film material, the method comprising:

[0033] Step 100: Acquire multiple sets of environmental data simulating indoor and outdoor environments; wherein the environmental data include air flow at the gap simulating the indoor and outdoor environments and the pressure difference on both sides of the gap simulating the indoor and outdoor environments;

[0034] Step 102: based on multiple sets of environmental data, obtain the air permeability in the gaps of doors and windows; wherein the air permeability in the gaps is used to characterize the airtightness performance of the applied airtight film material;

[0035] Step 104: Obtaining the indoor temperature and outdoor temperature when the doors and windows have been covered with airtight film materials;

[0036] Step 106: based on the indoor temperature and the outdoor temperature, obtain the heat consumption of cold air; wherein the heat consumption of cold air is used to characterize the heat insulation performance of the applied airtight film material;

[0037] Step 108: Obtaining the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity, and the outdoor humidity when the window has used the airtight film material;

[0038] Step 110: based on the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity, the moisture mass transfer rate is obtained; wherein the moisture mass transfer rate is used to characterize the humidity performance of the applied airtight membrane material;

[0039] Step 112: Evaluate the application performance of the airtight membrane material based on the air permeability in the gap, the heat consumption of cold air and the moisture mass transfer rate.

[0040] In the embodiment of the present invention, multiple sets of environmental data simulating indoor and outdoor environments are first obtained; based on the multiple sets of environmental data, the air permeation in the gaps of doors and windows is obtained; the indoor temperature and outdoor temperature when the doors and windows have been using airtight film materials are obtained; based on the indoor temperature and outdoor temperature, the heat consumption of cold air is obtained; the mass resistance of the hole gap when the window has been using airtight film materials, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity are obtained; based on the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity, the moisture mass transfer rate is obtained, and based on the air permeation in the gap, the heat consumption of cold air and the moisture mass transfer rate, the application performance of the airtight film material is evaluated. Thus, the technical problem of how to evaluate the application performance of the airtight film material is solved.

[0041] Described below Figure 1 How the various steps are performed.

[0042] For step 100:

[0043] like Figure 4 As shown, in one embodiment of the present invention, the equipment for simulating indoor and outdoor environments is composed of two independent cavities, each of which is equipped with a dehumidification and humidification unit, a heating system, a refrigeration system and a wind circulation system to simulate the indoor and outdoor environment. The wind pressure and temperature and humidity of the two cavities are adjusted by their respective control systems and displayed in real time on the liquid crystal display panel through the data acquisition and analysis system. The two cavities are assembled and combined structures, assembled with materials that are resistant to high and low temperatures and have excellent thermal insulation properties. The wall between the cavities is provided with a hole matching the door and window system, wherein the waterproof and breathable membrane is attached to the joint between the outdoor side and the window sill, and the waterproof and air-isolating membrane is attached to the joint between the indoor side and the window sill. A temperature and humidity sensor is installed between the two membranes to monitor environmental changes; wind pressure sensors are provided on both sides of the membrane to detect pressure differences in real time. In addition, the door and window openings are slightly larger than the door and window sizes to meet installation requirements, and a lifting platform is provided on the bottom of the opening, and the doors and windows are firmly installed on it. By rotating the wheel to adjust the platform height, the gap between the door, window and the opening can be accurately controlled, and the air permeability can be monitored through the anemometer in the gap to simulate the impact of actual construction accuracy on membrane performance. The air outlets of the indoor and outdoor wind circulation system of the equipment are equipped with anemometers to monitor wind speed changes in real time. The entire system ensures the stability and reliability of data collection through carefully arranged multiple sensors and instruments. The present invention can collect multiple sets of environmental data simulating indoor and outdoor environments through equipment simulating indoor and outdoor environments.

[0044] In this embodiment, sensor installation and sealing: First, fix the door and window lifting platform in place. Install wind pressure sensors on both sides of the waterproof breathable membrane and the waterproof air barrier membrane, and ensure that the contact part between the door and window openings and the independent cavity is sealed with a sealing gasket. At the same time, use glue to tightly bond the waterproof breathable membrane, the waterproof air barrier membrane and the window. Test condition setting: According to the specific needs of the experiment, set different wind speed parameters for the indoor and outdoor wind circulation systems, and uniformly set the test temperature and ambient humidity to simulate the actual use environment. Box pre-balance: Start the system and perform pre-balance, and monitor the set wind speed, test temperature and ambient humidity indoors and outdoors in real time. When the wind speed fluctuation within adjacent time intervals is ≤±0.2m / s, the temperature fluctuation is ≤±0.5℃, and the humidity tolerance is ≤±3%, it is considered that the box has reached the pre-balance state. Test: Take the end of pre-balance as the test starting point, and continuously record the data of the wind pressure sensor and the wind speed data between the door and window openings, and the duration is 1 hour. In the same time interval of n consecutive times (n is a natural number not less than 3), if the pressure data fluctuates within ≤±5% and the wind speed data fluctuates within ≤±0.2m / s, this moment is defined as the test endpoint.

[0045] Regarding step 102:

[0046] In one embodiment of the present invention, the air permeability in the gap is determined by the following formula:

[0047]

[0048] Where a is the air permeability in the gap, Q is the air flow rate, b is the air permeability performance index, and ΔP is the pressure difference.

[0049] It should be noted that at least two sets of environmental data are needed to solve the above formula, in which the air permeability in the gap is used to characterize the airtightness performance of the applied airtight membrane material. The smaller the air permeability in the gap, the better the airtightness of the airtight membrane material. In practical applications, according to different working conditions and flow states, appropriate calculation methods can be selected to accurately evaluate the airtightness of airtight membrane materials, so as to provide a reliable reference for building design and construction, ensure that buildings can meet good airtightness performance requirements, improve energy efficiency, reduce energy waste, and improve the comfort of the indoor environment.

[0050] Regarding step 104:

[0051] In one embodiment of the present invention, Figure 4 The equipment simulating indoor and outdoor environments collects indoor and outdoor temperatures when airtight film materials are used on doors and windows.

[0052] In this embodiment, the sensor installation and sealing of the equipment: First, fix the door and window lifting platform, and install temperature and humidity sensors on both sides of the waterproof breathable membrane and the waterproof vapor barrier membrane. Ensure that the contact part of the door and window openings and the independent cavity is sealed with a sealing gasket, and use glue to tightly bond the waterproof breathable membrane, the waterproof vapor barrier membrane and the window. Test condition setting: Set the same wind speed parameters for the indoor and outdoor wind circulation system. According to the specific needs of the experiment, apply specific temperature and humidity conditions on one side of the waterproof breathable membrane, and apply different temperature and humidity conditions on the side of the waterproof vapor barrier membrane to simulate the heat and moisture transfer in the actual environment. Box pre-balance: Start the system and perform pre-balance, and monitor the set wind speed, test temperature and ambient humidity indoors and outdoors in real time. When the wind speed fluctuation in adjacent time intervals is ≤±0.2m / s, the temperature fluctuation is ≤±0.5℃, and the humidity tolerance is ≤±3%, the box is considered to have reached the pre-balance state. Test: Take the end of pre-balance as the test starting point, and continuously record the data of the temperature and humidity sensors between the waterproof breathable membrane and the waterproof vapor barrier membrane for 1 hour. If the temperature fluctuation is ≤±0.5℃ and the humidity tolerance is ≤±3% at the same time interval for n consecutive times (n is a natural number not less than 3), this moment is set as the test endpoint. By setting different temperature and humidity conditions indoors and outdoors and monitoring the gap between the waterproof breathable membrane and the waterproof gas barrier membrane and the temperature and humidity changes on both sides of the membrane, its application performance can be effectively evaluated.

[0053] Regarding step 106:

[0054] In one embodiment of the present invention, the heat consumption of cold air is determined by the following formula:

[0055] W=0.28×c p ×ρ×Q×(T w -T n )

[0056] Where W is the heat consumption of cold air, c p is the constant pressure specific heat capacity of air, ρ is the air density at the set temperature of the outdoor measurement, Q is the amount of infiltrated cold air, T W is the outdoor temperature, T n is the indoor temperature.

[0057] In this embodiment, from the basic principle of heat conduction, the airtight film material with good thermal insulation performance can effectively prevent the free flow of heat. The heat consumption of cold air is set based on the characteristics of this heat transfer. When the thermal insulation performance of a material is good, it means that it can absorb, reflect or scatter more heat, so that the actual heat conducted through the material is reduced. This is manifested as a smaller value in the heat consumption of cold air. For example, we can compare the airtight film material to a "barrier" for heat flow. For materials with poor thermal insulation performance, this "barrier" is relatively weak, and heat can easily penetrate, so the heat consumption of cold air is large; while for materials with good thermal insulation performance, the "barrier" is stronger and can better block heat, so the heat consumption of cold air is also smaller.

[0058] Regarding step 108:

[0059] In one embodiment of the present invention, Figure 4 The equipment simulating indoor and outdoor environments collects the mass resistance of the opening gap when the window has been covered with airtight film material, the cross-sectional area of ​​the opening gap, the indoor humidity and the outdoor humidity.

[0060] Regarding step 110:

[0061] In one embodiment of the present invention, the moisture mass transfer rate is determined by the following formula:

[0062]

[0063] D = (9.218 × 10 -4 / P b )×(T 2.5 / (T+245))

[0064] Where J is the moisture transfer rate, A is the cross-sectional area of ​​the gap between the door and window openings, and P w is the water vapor partial pressure outside the room, H W is the outdoor humidity, p n is the water vapor partial pressure inside the room, H n is the indoor humidity, R mag is the mass resistance of the opening gap, L is the path of moisture through the door and window opening gap, R is the gas constant, T o is the moisture temperature of the gaps in the door and window openings, P a is the humid air pressure in the gap of door and window openings, P0 is the water vapor partial pressure in the gap of door and window openings, H0 is the relative humidity at the gap of door and window openings, D is the diffusion coefficient of water vapor in the air, P b is the absolute pressure of wet air, and T is the temperature of wet air. The above parameters can all be collected by the airtight membrane material application performance evaluation device.

[0065] In this embodiment, the moisture mass transfer rate is used to characterize the moisture barrier performance of the applied airtight film material. The smaller the moisture mass transfer rate, the better the moisture performance. Among them, the moisture mass transfer rate is an important indicator for evaluating the moisture barrier performance of airtight film materials, which is affected by many factors such as the material's own characteristics and environmental factors. In different application fields, accurately understanding and grasping the moisture mass transfer rate is of vital importance for selecting suitable airtight film materials and ensuring product quality and performance. By continuously researching and improving the performance of airtight film materials, it can better adapt to the needs of various practical application scenarios while meeting the requirements of moisture barrier performance.

[0066] like Figure 2 , Figure 3 As shown, an embodiment of the present invention provides an apparatus for evaluating the application performance of an airtight film material. The apparatus embodiment can be implemented by software, or by hardware or a combination of software and hardware. Figure 2 As shown, it is a hardware architecture diagram of an electronic device in which an airtight film material application performance evaluation device provided by an embodiment of the present invention is located. Figure 2 In addition to the processor, memory, network interface, and non-volatile memory shown, the electronic device in the embodiment may also include other hardware, such as a forwarding chip responsible for processing messages, etc. Taking software implementation as an example, Figure 3 As shown, as a device in a logical sense, the CPU of the electronic device in which it is located reads the corresponding computer program in the non-volatile memory into the internal memory and runs it.

[0067] like Figure 3 As shown, this embodiment provides an airtight film material application performance evaluation device, the device comprising:

[0068] The first acquisition module 300 is used to acquire multiple sets of environmental data simulating indoor and outdoor environments; wherein the environmental data includes the air flow at the gap simulating the indoor and outdoor environments and the pressure difference on both sides of the gap simulating the indoor and outdoor environments;

[0069] The first data processing module 302 is used to obtain the air permeability in the gaps of doors and windows based on the multiple sets of environmental data; wherein the air permeability in the gaps is used to characterize the airtightness performance of the airtight film material;

[0070] The second acquisition module 304 is used to obtain the indoor temperature and outdoor temperature when the doors and windows have used the airtight film material;

[0071] The second data processing module 306 is used to obtain the heat consumption of cold air based on the indoor temperature and the outdoor temperature; wherein the heat consumption of cold air is used to characterize the heat insulation performance of the airtight film material;

[0072] The third acquisition module 308 is used to obtain the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity when the window has used the airtight film material;

[0073] The third data processing module 310 is used to obtain a moisture mass transfer rate based on the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity; wherein the moisture mass transfer rate is used to characterize the humidity performance of the airtight membrane material;

[0074] The evaluation module 312 is used to evaluate the application performance of the airtight membrane material based on the air permeation in the gap, the heat consumption of the cold air and the moisture mass transfer rate.

[0075] In an embodiment of the present invention, the first acquisition module 300 can be used to execute step 100 in the above method embodiment, the first data processing module 302 can be used to execute step 102 in the above method embodiment, the second acquisition module can be used to execute step 104 in the above method embodiment, the second data processing module 306 can be used to execute step 106 in the above method embodiment, the third acquisition module 308 can be used to execute step 108 in the above method embodiment, the third data processing module 310 can be used to execute step 110 in the above method embodiment, and the evaluation module 312 can be used to execute step 112 in the above method embodiment.

[0076] In one embodiment of the present invention, the air permeability in the gap is determined by the following formula:

[0077]

[0078] In the formula, a is the air permeability in the gap, Q is the air flow rate, a is the air permeability in the gap, b is the air permeability performance index, and ΔP is the pressure difference.

[0079] In one embodiment of the present invention, the heat consumption of the cold air is determined by the following formula:

[0080] W=0.28×c p ×ρ×Q×(T w -T n )

[0081] Where W is the heat consumption of the cold air, c p is the constant pressure specific heat capacity of air, ρ is the air density at the set temperature of the outdoor measurement, Q is the amount of infiltrated cold air, T W is the outdoor temperature, T n is the indoor temperature.

[0082] In one embodiment of the present invention, the moisture mass transfer rate is determined by the following formula:

[0083]

[0084]

[0085] D = (9.218 × 10 -4 / P b )×(T 2.5 / (T+245))

[0086] Where, J is the moisture mass transfer rate, A is the cross-sectional area of ​​the door and window openings, and P w is the water vapor partial pressure outside the room, H W is the outdoor humidity, p n is the water vapor partial pressure inside the room, H n is the indoor humidity, R mag is the mass resistance of the opening gap, L is the path of moisture through the door and window opening gap, R is the gas constant, T o is the humidity temperature of the gaps in the door and window openings, P a is the humid air pressure in the gap of door and window openings, P0 is the water vapor partial pressure in the gap of door and window openings, H0 is the relative humidity at the gap of door and window openings, D is the diffusion coefficient of water vapor in the air, P b is the absolute pressure of moist air, and T is the temperature of moist air.

[0087] It is understood that the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on an airtight film material application performance evaluation device. In other embodiments of the present invention, an airtight film material application performance evaluation device may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0088] The information interaction, execution process and other contents between the modules in the above-mentioned device are based on the same concept as the embodiment of the method of the present invention. For the specific contents, please refer to the description in the embodiment of the method of the present invention, and no further description is given here.

[0089] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, a method for evaluating the application performance of an airtight film material in any embodiment of the present invention is implemented.

[0090] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the processor executes a method for evaluating the application performance of an airtight film material in any embodiment of the present invention.

[0091] Specifically, a system or device equipped with a storage medium can be provided, on which software program codes that implement the functions of any of the above-mentioned embodiments are stored, and a computer (or CPU or MPU) of the system or device can be enabled to read and execute the program codes stored in the storage medium.

[0092] In this case, the program code itself read from the storage medium can realize the function of any one of the above-mentioned embodiments, and thus the program code and the storage medium storing the program code constitute a part of the present invention.

[0093] The storage medium embodiments for providing the program code include a floppy disk, a hard disk, a magneto-optical disk, an optical disk (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), a magnetic tape, a non-volatile memory card, and a ROM. Alternatively, the program code can be downloaded from a server computer by a communication network.

[0094] In addition, it should be clear that the functions of any of the above embodiments can be implemented not only by executing the program code read by the computer, but also by enabling an operating system operating on the computer to complete part or all of the actual operations based on instructions from the program code.

[0095] In addition, it can be understood that the program code read from the storage medium is written to a memory provided in an expansion board inserted into the computer or to a memory provided in an expansion module connected to the computer, and then based on the instructions of the program code, a CPU installed on the expansion board or expansion module is enabled to perform part or all of the actual operations, thereby realizing the functions of any of the above-mentioned embodiments.

[0096] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0097] A person of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk, etc., various media that can store program codes.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for evaluating the application performance of an airtight membrane material, characterized in that: include: Acquire multiple sets of environmental data simulating indoor and outdoor environments; wherein the environmental data include air flow at the gap simulating the indoor and outdoor environments and the pressure difference on both sides of the gap simulating the indoor and outdoor environments; Based on the multiple sets of environmental data, the air permeability in the gaps of doors and windows is obtained; wherein the air permeability in the gaps is used to characterize the airtightness performance of the airtight film material; Obtaining the indoor temperature and outdoor temperature when the doors and windows have been using the airtight film material; Based on the indoor temperature and the outdoor temperature, the heat consumption of cold air is obtained; wherein the heat consumption of cold air is used to characterize the heat insulation performance of the airtight film material; Obtaining the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity when the window has been equipped with the airtight film material; Based on the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity, a moisture mass transfer rate is obtained; wherein the moisture mass transfer rate is used to characterize the humidity performance of the airtight membrane material; The application performance of the airtight membrane material is evaluated based on the air permeation in the gap, the heat consumption of the cold air and the moisture mass transfer rate.

2. The method according to claim 1, characterized in that The air permeability in the gap is determined by the following formula: In the formula, a is the air permeability in the gap, Q is the air flow rate, b is the air permeability performance index, and ΔP is the pressure difference.

3. The method according to claim 1, characterized in that The heat consumption of the cold air is determined by the following formula: W=0.28×c p ×ρ×Q×(T w -T n ) Where W is the heat consumption of the cold air, c p is the constant pressure specific heat capacity of air, ρ is the air density at the set temperature of the outdoor measurement, Q is the amount of infiltrated cold air, T W is the outdoor temperature, T n is the indoor temperature.

4. The method according to claim 3, characterized in that: The moisture mass transfer rate is determined by the following formula: D=(9.218×10 -4 / P b )×(T 2.5 / (T+245)) Where, J is the moisture mass transfer rate, A is the cross-sectional area of ​​the door and window openings, and P w is the water vapor partial pressure outside the room, H W is the outdoor humidity, p n is the water vapor partial pressure inside the room, H n is the indoor humidity, R mag is the mass resistance of the opening gap, L is the path of moisture through the door and window opening gap, R is the gas constant, T o is the humidity temperature of the gaps in the door and window openings, P a is the humid air pressure in the gap of door and window openings, P0 is the water vapor partial pressure in the gap of door and window openings, H0 is the relative humidity at the gap of door and window openings, D is the diffusion coefficient of water vapor in the air, P b is the absolute pressure of moist air, and T is the temperature of moist air.

5. A device for evaluating the application performance of airtight membrane materials, characterized in that: include: A first acquisition module is used to acquire multiple sets of environmental data simulating indoor and outdoor environments; wherein the environmental data includes air flow at the gap simulating the indoor and outdoor environments and the pressure difference on both sides of the gap simulating the indoor and outdoor environments; A first data processing module is used to obtain the air permeability in the gaps of doors and windows based on the multiple sets of environmental data; wherein the air permeability in the gaps is used to characterize the airtightness performance of the airtight film material; A second acquisition module is used to acquire the indoor temperature and outdoor temperature when the doors and windows have used the airtight film material; A second data processing module is used to obtain the heat consumption of cold air based on the indoor temperature and the outdoor temperature; wherein the heat consumption of cold air is used to characterize the thermal insulation performance of the airtight film material; A third acquisition module is used to obtain the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity when the window has used the airtight film material; A third data processing module is used to obtain a moisture mass transfer rate based on the mass resistance of the hole gap, the cross-sectional area of ​​the hole gap, the indoor humidity and the outdoor humidity; wherein the moisture mass transfer rate is used to characterize the humidity performance of the airtight membrane material; An evaluation module is used to evaluate the application performance of the airtight membrane material based on the air permeability in the gap, the heat consumption of the cold air and the moisture mass transfer rate.

6. The device according to claim 5, characterized in that The air permeability in the gap is determined by the following formula: In the formula, a is the air permeability in the gap, Q is the air flow rate, b is the air permeability performance index, and ΔP is the pressure difference.

7. The device according to claim 5, characterized in that The heat consumption of the cold air is determined by the following formula: W=0.28×c p ×ρ×Q×(T w -T n ) Where W is the heat consumption of the cold air, c p is the constant pressure specific heat capacity of air, ρ is the air density at the set temperature of the outdoor measurement, Q is the amount of infiltrated cold air, T W is the outdoor temperature, T n is the indoor temperature.

8. The device according to claim 7, characterized in that The moisture mass transfer rate is determined by the following formula: D=(9.218×10 -4 / P b )×(T 2.5 / (T+245)) Where, J is the moisture mass transfer rate, A is the cross-sectional area of ​​the door and window openings, and P w is the water vapor partial pressure outside the room, H W is the outdoor humidity, p n is the water vapor partial pressure inside the room, H n is the indoor humidity, R mag is the mass resistance of the opening gap, L is the path of moisture through the door and window opening gap, R is the gas constant, T o is the humidity temperature of the gaps in the door and window openings, P a is the humid air pressure in the gap of door and window openings, P0 is the water vapor partial pressure in the gap of door and window openings, H0 is the relative humidity at the gap of door and window openings, D is the diffusion coefficient of water vapor in the air, P b is the absolute pressure of moist air, and T is the temperature of moist air.

9. An electronic device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the method according to any one of claims 1 to 4 is implemented.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed in a computer, the computer is caused to execute the method according to any one of claims 1 to 4.

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