CN118190746A - System and method for testing water vapor barrier performance based on differential pressure method - Google Patents
System and method for testing water vapor barrier performance based on differential pressure method Download PDFInfo
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Abstract
The invention discloses a system and a method for testing water vapor barrier performance based on a differential pressure method, which relate to the technical field of water vapor barrier performance testing and comprise a collecting module, a testing module and a testing module, wherein the collecting module is used for collecting operation data of testing equipment and processing the operation data; the analysis module is used for carrying out calculation and analysis on the processed operation data of the test equipment, judging the state of the test equipment during vacuumizing operation, and calculating the water vapor transmission amount of the test sample; and the control module is used for controlling the test equipment, displaying all data and assisting the staff in managing the test equipment. According to the invention, the dry gas simple substance and the wet gas simple substance double-layer test is carried out by a differential pressure method, the water vapor barrier performance of the sample is obtained by calculating the difference value, the state of the test equipment is monitored in real time during the vacuumizing operation of the test equipment, the error of the test result caused by improper vacuum operation is avoided, and the accuracy of the test data is effectively improved.
Description
Technical Field
The invention relates to the technical field of water vapor barrier performance test, in particular to a system and a method for testing water vapor barrier performance based on a differential pressure method.
Background
The test principle is that a test sample is placed in a high-pressure high-humidity chamber and a low-pressure chamber to be sealed in the middle, the two sealed chambers are vacuumized, after the two chambers are vacuumized, the low-pressure chamber is kept in a vacuumized state, the other high-pressure high-humidity chamber is filled with water vapor with certain humidity, after the humidity of the water vapor in the high-pressure high-humidity chamber is stable, the low-pressure chamber is closed and vacuumized, the sealing is kept, the test water vapor penetrates into the low-pressure vacuum chamber through the test sample and causes pressure change of the chamber, the water vapor transmission quantity of the test sample can be obtained through measuring the pressure change quantity, the current test method has low vacuumized efficiency and lacks a state monitoring process during vacuumized operation of test equipment, the test process is slow, and errors possibly occur in test results.
Disclosure of Invention
The present invention has been made in view of the above-mentioned problems occurring in the conventional pressure difference method-based water vapor barrier performance test system and method.
Therefore, the problem to be solved by the invention is that the current test method has low vacuumizing efficiency and lacks a state monitoring process during vacuumizing operation of test equipment, the test process is slow, and errors may occur in test results.
In order to solve the technical problems, the invention provides the following technical scheme: the system for testing the water vapor barrier performance based on the differential pressure method comprises a collecting module, a testing module and a testing module, wherein the collecting module is used for collecting operation data of testing equipment and processing the operation data;
The analysis module is used for carrying out calculation and analysis on the processed operation data of the test equipment, judging the state of the test equipment during vacuumizing operation, and calculating the water vapor transmission amount of the test sample;
the control module is used for controlling the test equipment, displaying all data and assisting a worker in managing the test equipment;
And the processing module is used for implementing processing measures according to the state of the test equipment during vacuumizing operation.
As a preferable scheme of the pressure difference method-based water vapor barrier performance testing system, the invention comprises the following steps: the collecting module comprises a data collecting sub-module, a data processing sub-module and a data storage sub-module, wherein the data collecting sub-module is used for collecting test equipment operation data through a sensor, the data processing sub-module is used for cleaning and filtering the collected test equipment operation data and filling up blank values, and the data storage sub-module is used for storing the processed test equipment operation data and generating access records when accessing the data.
As a preferable scheme of the pressure difference method-based water vapor barrier performance testing system, the invention comprises the following steps: the analysis module comprises a data calculation sub-module and a data judgment sub-module, wherein the data calculation sub-module is used for calculating the processed operation data of the test equipment and calculating the gas permeation quantity of the dry gas simple substance and the gas permeation quantity of the wet gas simple substance to finally obtain the water vapor permeation quantity of the test sample, and the data judgment sub-module is used for judging the state of the test equipment according to the calculation result of the data calculation sub-module and sending the judgment result to the control module.
The invention also provides a method for testing the water vapor barrier performance based on the differential pressure method, which comprises the following steps,
Sealing the test equipment after placing the test sample, and performing vacuumizing operation;
Inputting a dry gas simple substance, and calculating the gas transmission amount of the dry gas simple substance;
After repeated vacuumizing operation, inputting the same amount of moist gas simple substance, and calculating the gas transmission amount of the moist gas simple substance;
The water vapor transmission amount of the test sample was calculated and outputted.
As a preferable scheme of the pressure difference method-based water vapor barrier performance testing method, the invention comprises the following steps: the vacuum pumping operation comprises the steps of extracting gas in the high-pressure chamber and the low-pressure chamber through a vacuum pump, collecting operation data of the test equipment until a pressure value reaches 27pa through a vacuum sensor and a pressure sensor, stopping the vacuum pumping operation and sealing after the test sample is kept for 3 hours, and calculating a pressure change rate in the vacuum pumping operation process to detect the state of the test equipment in real time and realize treatment measures:
Wherein S (t) is a state value of the test equipment, t is time data of the test equipment in the vacuumizing operation, V (t) is a vacuum degree of the test equipment in the vacuumizing operation at the time t, P ' (t) is a pressure change rate, alpha, beta and gamma are adjustment parameters obtained by solving a pressure value P (t) of the test equipment at the time t, and k i、ωi and gamma are adjustment parameters Is an experimental parameter;
The experimenter sets reference thresholds Q 1 and Q 2 of the state of the testing equipment, and Q 1＜Q2 compares the state value S (t) of the testing state calculated by the algorithm with the reference thresholds Q 1 and Q 2 to judge the real-time state of the testing equipment:
If S (t) < Q 1, the test equipment is in an ideal state, the vacuum degree is stably changed, the pressure change is stable, the vacuum pump keeps running to perform the vacuum pumping operation of the test equipment, and the running data of the test equipment is continuously collected and stored to be used as the reference data of the next vacuum pumping operation of the test equipment;
If Q 1≤S(t)＜Q2 shows that the test equipment is in a fluctuation state, fluctuation occurs in vacuum degree change and pressure change, the test equipment monitors vacuum pump operation data, if the vacuum pump operation data changes, vacuum pump operation parameters are adjusted, meanwhile, the test equipment state is detected until the test equipment state is changed to an ideal state and is kept for 3 seconds, then the adjustment of the vacuum pump operation parameters is stopped, adjustment records are generated and stored, if the vacuum pump operation data does not change, a test fluctuation notification is sent to a worker to prompt the worker to pay attention to the test equipment state, meanwhile, the worker is inquired whether to pause the test equipment vacuumizing operation, if the worker confirms the pause, the vacuum pump operation is stopped, the test equipment operation data is collected to assist the worker to check the fluctuation reason, if the worker does not pause, the test equipment vacuumizing operation is continued until the test requirement is met, and after the operation is completed, the test equipment stops the vacuum pump operation and sends a detection notification to prompt the worker to detect the test equipment;
If S (t) is not less than Q 2, the test equipment is in a fault state, the test equipment immediately closes the vacuum pump to operate, quick pressure relief is performed to prevent accidents, after pressure relief is completed, a test equipment fault notification and test equipment operation data are sent to a worker, the worker performs manual detection maintenance on the test equipment, after maintenance is completed, the worker performs vacuumizing operation and synchronously detects the state of the test equipment, if no fault occurs in three tests, the test equipment maintenance is completed, the worker records the fault reason and the maintenance process and attaches the test equipment fault data to store.
As a preferable scheme of the pressure difference method-based water vapor barrier performance testing method, the invention comprises the following steps: the method comprises the steps of inputting a dry gas simple substance, calculating the gas permeation quantity of the dry gas simple substance, continuously sealing after filling quantitative dry gas simple substance into a high-pressure chamber of a testing device, simultaneously keeping a low-pressure chamber sealed, setting pre-permeation time, measuring the pressure variation of the low-pressure chamber after pre-permeation, and calculating the gas permeation quantity of the dry gas simple substance:
Wherein GVTR is the gas permeation quantity of the dry gas simple substance, V c is the volume of the low-pressure chamber, M g is the molar mass of the dry gas simple substance, A is the area of the test sample which permeates the gas, R is the gas constant, T is the experimental temperature, In order to measure the pressure change of the low-pressure chamber in the pre-permeation time in the dry gas simple substance gas permeation quantity experiment.
As a preferable scheme of the pressure difference method-based water vapor barrier performance testing method, the invention comprises the following steps: after repeated vacuumizing operation, inputting the same amount of wet gas simple substances, calculating the gas permeation quantity of the wet gas simple substances, namely measuring the gas permeation quantity of dry gas simple substances, vacuumizing the testing equipment again, setting the same amount of wet gas simple substances in a high-pressure chamber of the testing equipment, presetting the same pre-permeation time, measuring the pressure variation quantity of a low-pressure chamber after pre-permeation, and calculating the gas permeation quantity of the wet gas simple substances:
Wherein HVTR is the gas permeation quantity of the wet gas simple substance, M h is the molar mass of the wet gas simple substance, In order to measure the pressure change of the low-pressure chamber in the pre-permeation time in the wet gas simple substance gas permeation quantity experiment.
As a preferable scheme of the pressure difference method-based water vapor barrier performance testing method, the invention comprises the following steps: and calculating the water vapor transmission amount of the test sample and outputting the calculated water vapor transmission amount to be HVTR and GVTR, then automatically calculating the difference value to obtain the water vapor transmission amount data of the test sample, outputting the data through a display device, and synchronously storing the data.
A computer device, comprising: a memory and a processor; the memory stores a computer program characterized in that: and the processor realizes the step of the water vapor barrier performance testing method based on the differential pressure method when executing the computer program.
A computer-readable storage medium having stored thereon a computer program, characterized by: the computer program, when executed by the processor, realizes the steps of the water vapor barrier performance testing method based on the differential pressure method.
The invention has the beneficial effects that: according to the invention, the dry gas simple substance and the wet gas simple substance double-layer test is carried out by a differential pressure method, the water vapor barrier performance of the sample is obtained by calculating the difference value, the state of the test equipment is monitored in real time during the vacuumizing operation of the test equipment, the error of the test result caused by improper vacuum operation is avoided, and the accuracy of the test data is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system for testing the barrier performance of water vapor based on a differential pressure method.
Fig. 2 is a schematic flow chart of a method for testing the water vapor barrier performance based on a differential pressure method.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1, a first embodiment of the present invention provides a differential pressure-based water vapor barrier performance test system, which includes,
The collection module is used for collecting the operation data of the test equipment and processing the operation data;
The analysis module is used for carrying out calculation and analysis on the processed operation data of the test equipment, judging the state of the test equipment during vacuumizing operation, and calculating the water vapor transmission amount of the test sample;
the control module is used for controlling the test equipment, displaying all data and assisting a worker in managing the test equipment;
And the processing module is used for implementing processing measures according to the state of the test equipment during vacuumizing operation.
Specifically, the collecting module comprises a data collecting sub-module, a data processing sub-module and a data storage sub-module, wherein the data collecting sub-module is used for collecting test equipment operation data through a sensor, the data processing sub-module is used for cleaning and filtering the collected test equipment operation data and filling up blank values, and the data storage sub-module is used for storing the processed test equipment operation data and generating access records when accessing the data.
Specifically, the analysis module comprises a data calculation submodule and a data judgment submodule, wherein the data calculation submodule is used for calculating the operation data of the processed test equipment and calculating the gas permeation quantity of the dry gas simple substance and the gas permeation quantity of the wet gas simple substance to finally obtain the water vapor permeation quantity of the test sample, and the data judgment submodule is used for judging the state of the test equipment according to the calculation result of the data calculation submodule and sending the judgment result to the control module.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Example 2
Referring to fig. 2, in a second embodiment of the present invention, which is different from the previous embodiment, a method for testing water vapor barrier performance based on a differential pressure method is provided, including the steps of:
s1, sealing test equipment after placing a test sample, and performing vacuumizing operation;
Specifically, after placing a test sample, sealing and performing vacuumizing operation means that after placing the test sample in the center of the test device, sealing treatment is performed by using vacuum grease and a double-layer sealing ring, so as to ensure complete isolation of the test sample between a high-pressure chamber and a low-pressure chamber, the test device comprises the high-pressure chamber and the low-pressure chamber, the vacuumizing operation comprises the steps of extracting gas in the high-pressure chamber and the low-pressure chamber through a vacuum pump, collecting operation data of the test device until a pressure value reaches 27pa through a vacuum sensor and a pressure sensor, stopping vacuumizing operation and sealing after 3 hours, forming a vacuum environment in the test device, calculating a pressure change rate in the vacuumizing operation process, detecting the state of the test device in real time, and realizing treatment measures:
Wherein S (t) is a state value of the test equipment, t is time data of the test equipment in the vacuumizing operation, V (t) is a vacuum degree of the test equipment in the vacuumizing operation at the time t, P ' (t) is a pressure change rate, alpha, beta and gamma are adjustment parameters obtained by solving a pressure value P (t) of the test equipment at the time t, and k i、ωi and gamma are adjustment parameters Is an experimental parameter;
The experimenter sets reference thresholds Q 1 and Q 2 of the state of the testing equipment, and Q 1＜Q2 compares the state value S (t) of the testing state calculated by the algorithm with the reference thresholds Q 1 and Q 2 to judge the real-time state of the testing equipment:
If S (t) < Q 1, the test equipment is in an ideal state, the vacuum degree is stably changed, the pressure change is stable, the vacuum pump keeps running to perform the vacuum pumping operation of the test equipment, and the running data of the test equipment is continuously collected and stored to be used as the reference data of the next vacuum pumping operation of the test equipment;
If Q 1≤S(t)＜Q2 shows that the test equipment is in a fluctuation state, the vacuum degree change and the pressure change are fluctuated, the test equipment monitors the vacuum pump operation data, if the vacuum pump operation data are fluctuated, the vacuum pump operation parameters are adjusted, the test equipment state is detected until the test equipment state is changed to an ideal state for 3 seconds, the adjustment of the vacuum pump operation parameters is stopped, an adjustment record is generated and stored, the test equipment operation data are changed in the process of adjusting the vacuum pump, so that the test equipment state is also changed, the test equipment state may fluctuated to be changed into a state in the changing process, but the test equipment state is possibly quickly separated from the ideal state, if the ideal state 3 seconds can be kept, the test equipment state is indicated to be approaching to be stable, the current vacuum pump operation parameters can be kept, if the vacuum pump operation data are not changed, the test fluctuation is sent to a worker to prompt the test equipment state to pay attention, and if the worker confirms that the suspension is performed on the test equipment is stopped, the test equipment operation is stopped, the worker is assisted by collecting the test equipment operation data to check the fluctuation, if the test equipment operation is stopped, and the test equipment operation is stopped is continued until the test equipment operation is stopped, and the test equipment operation is stopped is required to be performed after the test equipment operation is stopped, if the test equipment operation is stopped, and the test operation is stopped is performed, the test equipment operation is stopped, and the test equipment operation is stopped is performed;
If S (t) is not less than Q 2, the test equipment is in a fault state, the test equipment immediately closes the vacuum pump to operate, quick pressure relief is performed to prevent accidents, after pressure relief is completed, a test equipment fault notification and test equipment operation data are sent to a worker, the worker performs manual detection maintenance on the test equipment, after maintenance is completed, the worker performs vacuumizing operation and synchronously detects the state of the test equipment, if no fault occurs in three tests, the test equipment maintenance is completed, the worker records the fault reason and the maintenance process and attaches the test equipment fault data to store.
The stability of the test environment can be detected in real time by calculating the pressure change rate, the test parameters can be regulated according to the stability, the current running state of the equipment can be judged according to the calculated state value of the test equipment, corresponding measures can be taken according to different states, the equipment can continue running in an ideal state, fine adjustment is carried out in a fluctuation state, emergency measures are immediately taken in a fault state, the dynamic monitoring and response mechanism has the advantages that the safety and efficiency of the test process are improved, the final aim of all the operations is to realize the vacuum state of the test equipment and keep stable, the processing measures of all the corresponding states are to finally realize the stability of the test equipment in experiments, and any abnormal situation in the test process can be found in time by monitoring the state value and the pressure change rate of the test equipment in real time. This real-time feedback mechanism allows the operator to respond quickly, making the necessary adjustments to ensure continuity and effectiveness of the test. The method has important significance for processing complex test conditions and avoiding potential equipment faults, and the test method can be optimized by collecting and analyzing data in the test process, so that the efficiency and accuracy of future tests are improved. This data-based approach allows for continuous improvement and adjustment of test parameters to accommodate different materials and test conditions.
S2, inputting a dry gas simple substance, and calculating the gas transmission amount of the dry gas simple substance;
Specifically, inputting a dry gas simple substance, calculating the gas permeation quantity of the dry gas simple substance, pointing to a high-pressure chamber of the test equipment, filling a quantitative dry gas simple substance into the high-pressure chamber, continuing sealing while keeping the low-pressure chamber sealed, setting pre-permeation time, measuring the pressure variation quantity of the low-pressure chamber after pre-permeation, and calculating the gas permeation quantity of the dry gas simple substance:
Wherein GVTR is the gas permeation quantity of the dry gas simple substance, V c is the volume of the low-pressure chamber, M g is the molar mass of the dry gas simple substance, the dry gas simple substance can be selected from gases such as oxygen, nitrogen, argon and the like, A is the area of the test sample which permeates through the gas, R is the gas constant, T is the experimental temperature, In order to measure the pressure change of the low-pressure chamber in the pre-permeation time in the dry gas simple substance gas permeation quantity experiment.
The method ensures the accuracy and consistency of experimental conditions by accurately calculating the volume of a low-pressure chamber, the molar mass of a gas simple substance, the area of a test sample penetrating through the gas, a gas constant and an experimental temperature, thereby improving the reliability of experimental results.
S3, after repeated vacuumizing operation, inputting the same amount of moist gas simple substances, and calculating the gas transmission quantity of the moist gas simple substances;
Specifically, after repeated vacuumizing operation, the same amount of moist gas simple substance is input, the gas transmission amount of the moist gas simple substance is calculated, after the gas transmission amount of the dry gas simple substance is measured, the testing equipment is vacuumized again, the same amount of moist gas simple substance is arranged in a high-pressure chamber of the testing equipment, the same pre-permeation time is set, the pressure variation of a low-pressure chamber is measured after pre-permeation, and the gas transmission amount of the moist gas simple substance is calculated:
Wherein HVTR is the gas permeation quantity of the wet gas simple substance, M h is the molar mass of the wet gas simple substance, In order to measure the pressure change of the low-pressure chamber in the pre-permeation time in the wet gas simple substance gas permeation quantity experiment.
The method ensures the consistency of conditions between the two tests by using the same gas type and quantity and the same pre-permeation time as the dry gas test, which is critical for comparing the test results under dry and wet conditions, and can directly evaluate the influence of humidity on the barrier performance of the material by measuring the gas permeation quantity of the wet gas simple substance and comparing the gas permeation quantity with the result of the dry gas simple substance, which provides important data support for the selection and application of the material, and ensures the accuracy and consistency of experimental conditions by precisely controlling the molar mass of the wet gas simple substance and measuring the pressure change of the low-pressure chamber within the pre-permeation time, thereby improving the reliability of the experimental result.
S4, calculating the water vapor transmission amount of the test sample and outputting the water vapor transmission amount;
specifically, calculating the water vapor transmission amount of the test sample and outputting the calculated water vapor transmission amount refers to calculating HVTR and GVTR, then automatically calculating the difference value to obtain the water vapor transmission amount data of the test sample, outputting the data through a display device, and synchronously storing the data.
Example 3
For the third example of the present invention, which is different from the first two examples, the comparison results are shown in table 1, as demonstrated by comparing the present invention method with the prior art in order to verify the beneficial effects of the present invention method.
Table 1: the method of the invention is compared with the prior art experiment table
Compared with the prior art, the method provided by the invention is more stable under the same experimental condition, has smaller test error under the condition of testing the same material, and has significantly improved test precision, and the method can provide more accurate and reliable water vapor barrier performance data by precisely controlling the test condition and using an advanced measurement technology, thereby having important guiding significance for the selection and application of materials.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (10)
1. Water vapor barrier performance test system based on pressure differential method, its characterized in that: comprising the steps of (a) a step of,
The collection module is used for collecting the operation data of the test equipment and processing the operation data;
The analysis module is used for carrying out calculation and analysis on the processed operation data of the test equipment, judging the state of the test equipment during vacuumizing operation, and calculating the water vapor transmission amount of the test sample;
the control module is used for controlling the test equipment, displaying all data and assisting a worker in managing the test equipment;
And the processing module is used for implementing processing measures according to the state of the test equipment during vacuumizing operation.
2. The differential pressure method-based water vapor barrier performance testing system according to claim 1, wherein: the collecting module comprises a data collecting sub-module, a data processing sub-module and a data storage sub-module, wherein the data collecting sub-module is used for collecting test equipment operation data through a sensor, the data processing sub-module is used for cleaning and filtering the collected test equipment operation data and filling up blank values, and the data storage sub-module is used for storing the processed test equipment operation data and generating access records when accessing the data.
3. The differential pressure method-based water vapor barrier performance testing system according to claim 2, wherein: the analysis module comprises a data calculation sub-module and a data judgment sub-module, wherein the data calculation sub-module is used for calculating the processed operation data of the test equipment and calculating the gas permeation quantity of the dry gas simple substance and the gas permeation quantity of the wet gas simple substance to finally obtain the water vapor permeation quantity of the test sample, and the data judgment sub-module is used for judging the state of the test equipment according to the calculation result of the data calculation sub-module and sending the judgment result to the control module.
4. The method for testing the water vapor barrier performance based on the differential pressure method is characterized by comprising the following steps of: comprising the steps of (a) a step of,
Sealing the test equipment after placing the test sample, and performing vacuumizing operation;
Inputting a dry gas simple substance, and calculating the gas transmission amount of the dry gas simple substance;
After repeated vacuumizing operation, inputting the same amount of moist gas simple substance, and calculating the gas transmission amount of the moist gas simple substance;
The water vapor transmission amount of the test sample was calculated and outputted.
5. The differential pressure method-based water vapor barrier performance test method as defined in claim 4, wherein: the vacuum pumping operation comprises the steps of extracting gas in the high-pressure chamber and the low-pressure chamber through a vacuum pump, collecting operation data of the test equipment until a pressure value reaches 27pa through a vacuum sensor and a pressure sensor, stopping the vacuum pumping operation and sealing after the test sample is kept for 3 hours, and calculating a pressure change rate in the vacuum pumping operation process to detect the state of the test equipment in real time and realize treatment measures:
Wherein S (t) is a state value of the test equipment, t is time data of the test equipment in the vacuumizing operation, V (t) is a vacuum degree of the test equipment in the vacuumizing operation at time t, P' (t) is a pressure change rate, alpha, beta and gamma are adjustment parameters obtained by deriving the pressure value P (t) of the test equipment at the time t, and k i、ωi and gamma are the adjustment parameters Is an experimental parameter;
The experimenter sets reference thresholds Q 1 and Q 2 of the state of the testing equipment, and Q 1＜Q2 compares the state value S (t) of the testing state calculated by the algorithm with the reference thresholds Q 1 and Q 2 to judge the real-time state of the testing equipment:
If S (t) < Q 1, the test equipment is in an ideal state, the vacuum degree is stably changed, the pressure change is stable, the vacuum pump keeps running to perform the vacuum pumping operation of the test equipment, and the running data of the test equipment is continuously collected and stored to be used as the reference data of the next vacuum pumping operation of the test equipment;
If Q 1≤S(t)＜Q2 shows that the test equipment is in a fluctuation state, fluctuation occurs in vacuum degree change and pressure change, the test equipment monitors vacuum pump operation data, if the vacuum pump operation data changes, vacuum pump operation parameters are adjusted, meanwhile, the test equipment state is detected until the test equipment state is changed to an ideal state and is kept for 3 seconds, then the adjustment of the vacuum pump operation parameters is stopped, adjustment records are generated and stored, if the vacuum pump operation data does not change, a test fluctuation notification is sent to a worker to prompt the worker to pay attention to the test equipment state, meanwhile, the worker is inquired whether to pause the test equipment vacuumizing operation, if the worker confirms the pause, the vacuum pump operation is stopped, the test equipment operation data is collected to assist the worker to check the fluctuation reason, if the worker does not pause, the test equipment vacuumizing operation is continued until the test requirement is met, and after the operation is completed, the test equipment stops the vacuum pump operation and sends a detection notification to prompt the worker to detect the test equipment;
If S (t) is not less than Q 2, the test equipment is in a fault state, the test equipment immediately closes the vacuum pump to operate, quick pressure relief is performed to prevent accidents, after pressure relief is completed, a test equipment fault notification and test equipment operation data are sent to a worker, the worker performs manual detection maintenance on the test equipment, after maintenance is completed, the worker performs vacuumizing operation and synchronously detects the state of the test equipment, if no fault occurs in three tests, the test equipment maintenance is completed, the worker records the fault reason and the maintenance process and attaches the test equipment fault data to store.
6. The differential pressure method-based water vapor barrier performance test method as defined in claim 5, wherein: the method comprises the steps of inputting a dry gas simple substance, calculating the gas permeation quantity of the dry gas simple substance, continuously sealing after filling quantitative dry gas simple substance into a high-pressure chamber of a testing device, simultaneously keeping a low-pressure chamber sealed, setting pre-permeation time, measuring the pressure variation of the low-pressure chamber after pre-permeation, and calculating the gas permeation quantity of the dry gas simple substance:
Wherein GVTR is the gas permeation quantity of the dry gas simple substance, V c is the volume of the low-pressure chamber, M g is the molar mass of the dry gas simple substance, A is the area of the test sample which permeates the gas, R is the gas constant, T is the experimental temperature, In order to measure the pressure change of the low-pressure chamber in the pre-permeation time in the dry gas simple substance gas permeation quantity experiment.
7. The differential pressure method-based water vapor barrier performance test method as defined in claim 6, wherein: after repeated vacuumizing operation, inputting the same amount of wet gas simple substances, calculating the gas permeation quantity of the wet gas simple substances, namely measuring the gas permeation quantity of dry gas simple substances, vacuumizing the testing equipment again, setting the same amount of wet gas simple substances in a high-pressure chamber of the testing equipment, presetting the same pre-permeation time, measuring the pressure variation quantity of a low-pressure chamber after pre-permeation, and calculating the gas permeation quantity of the wet gas simple substances:
Wherein HVTR is the gas permeation quantity of the wet gas simple substance, M h is the molar mass of the wet gas simple substance, In order to measure the pressure change of the low-pressure chamber in the pre-permeation time in the wet gas simple substance gas permeation quantity experiment.
8. The differential pressure method-based water vapor barrier performance test method as claimed in claim 7, wherein: and calculating the water vapor transmission amount of the test sample and outputting the calculated water vapor transmission amount to be HVTR and GVTR, then automatically calculating the difference value to obtain the water vapor transmission amount data of the test sample, outputting the data through a display device, and synchronously storing the data.
9. A computer device, comprising: a memory and a processor; the memory stores a computer program characterized in that: the processor, when executing the computer program, implements the steps of the method of any of claims 4 to 8.
10. A computer-readable storage medium having stored thereon a computer program, characterized by: the computer program implementing the steps of the method of any of claims 4 to 8 when executed by a processor.
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