CN114088311A - Method, system, equipment and storage medium for detecting box security - Google Patents

Method, system, equipment and storage medium for detecting box security Download PDF

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Publication number
CN114088311A
CN114088311A CN202111294548.8A CN202111294548A CN114088311A CN 114088311 A CN114088311 A CN 114088311A CN 202111294548 A CN202111294548 A CN 202111294548A CN 114088311 A CN114088311 A CN 114088311A
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box body
pressure
leakage
value
target
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许开华
张宇平
宋琦
龙伟
施洋
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Green Beauty Wuhan Power Battery Recycling Co ltd
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Green Beauty Wuhan Power Battery Recycling Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors

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  • Examining Or Testing Airtightness (AREA)

Abstract

The application relates to a method, equipment and storage medium for detecting the safety of a box body, wherein the method comprises the steps of determining a leakage pressure critical value of a target box body sample; acquiring a target leakage pressure parameter of a box body to be tested in an inflation test, wherein the model of the box body to be tested is the same as that of a target box body sample; and judging whether the target leakage pressure parameter of the box body to be detected is smaller than the leakage pressure critical value, if so, determining that the box body to be detected meets the preset safety standard. The application can effectively improve the safety detection efficiency of the box body to be detected, is convenient for mass detection, and has good detection effect and no negative effect.

Description

Method, system, equipment and storage medium for detecting box security
Technical Field
The present application relates to the field of security detection technologies, and in particular, to a method, a system, a device, and a storage medium for detecting security of a box.
Background
Under the prospect of rapid development of electric automobiles, the requirements for parts in the whole electric automobile are more severe, particularly, the heart of the electric automobile, namely a battery pack, is not allowed to be sold before the battery pack does not pass the national standard GBT31467-3-2015 safety requirement and test method, and not only is the parts of the whole electric automobile required to be subjected to IP67 watertight test before the electric automobile is on the road in the first-line cities such as Shanghai, so that the protection grade of a battery pack box body must reach IP67 in order to ensure the quality of products and the sales prospect of the products. However, in the production process of the battery pack box, if the test method described in GB4028-93 protection level (IP code) is used, a large amount of manpower and material resources are required, and the battery box after the test needs to be disassembled to check whether water leaks and then be capped, but because the box cannot be guaranteed to meet the IP67 safety level again due to damage causes such as a seal ring in the process of uncapping, the method is not only resource-wasting, but also not scientific, and has a certain negative impact.
Disclosure of Invention
In view of this, the present application provides a method, a system, a device and a storage medium for detecting the security of a box, so as to solve the technical problem that the existing method for detecting the water-tightness of a battery box is inconvenient or has negative effects.
In order to solve the above problem, in a first aspect, the present application provides a method for detecting security of a box, the method including:
determining a leakage pressure critical value of a target box body sample;
acquiring a target leakage pressure parameter of a box body to be tested in an inflation test, wherein the model of the box body to be tested is the same as that of a target box body sample;
and judging whether the target leakage pressure parameter of the box body to be detected is smaller than the leakage pressure critical value, if so, determining that the box body to be detected meets the preset safety standard.
Optionally, the determining the leak pressure threshold of the target box sample includes:
establishing an initial leakage pressure calculation model;
determining a target box sample meeting a preset safety standard through a watertight test on a plurality of initial box samples;
acquiring a plurality of groups of test parameters through an inflation test on the target box body sample, wherein each test parameter comprises an inflation pressure stabilizing value and a leakage pressure test value of the target box body sample;
determining undetermined parameters of the initial leakage pressure calculation model according to the inflation pressure stabilizing value and the leakage pressure test value in the multiple groups of test parameters to obtain a target leakage pressure calculation model;
and determining the leakage pressure critical value of the target box body sample according to the target leakage pressure calculation model and a preset standard pressure-bearing value.
Optionally, the security standard is the international standard IP 67.
Optionally, the leakage voltage critical value, the target leakage voltage parameter and the leakage voltage test value are all represented by a leakage rate, and the range is 0-1.
Optionally, the process of the inflation test includes:
setting inflation parameters, wherein the inflation parameters at least comprise a pressure maintaining value and pressure maintaining time;
starting to inflate the current box body;
acquiring a real-time pressure value inside the current box body, and judging whether the real-time pressure value reaches the pressure maintaining value or not;
if not, performing inflation or deflation operation on the current box body until the obtained real-time pressure value inside the current box body reaches the pressure maintaining value, and starting a pressure maintaining process;
and obtaining the leakage rate value of the current box body after the pressure maintaining time is over.
Optionally, the pressure maintaining value is not less than the standard pressure bearing value, and the standard pressure bearing value is a pressure value borne by the pressure bearing object at one meter deep water.
Optionally, the initial leakage pressure calculation model is: q ═ mxpnWherein m and n are undetermined parameters related to the structure of the leakage hole of the inflatable test object, P is the pressure to which the inflatable test object is subjected, and Q is the leakage rate of the inflatable test object.
In a second aspect, the present application provides a system for detecting security of a container, the system comprising:
the critical value determining module is used for determining the leakage pressure critical value of the target box body sample;
the parameter acquisition module is used for acquiring a target leakage pressure parameter of a box body to be tested in an inflation test, and the model of the box body to be tested is the same as that of a target box body sample;
and the safety judgment module is used for judging whether the target leakage pressure parameter of the box body to be detected is smaller than the leakage pressure critical value or not, and if so, determining that the box body to be detected meets the preset safety standard.
In a third aspect, the present application provides a computer device, which adopts the following technical solution:
a computer device comprising a memory, a processor and a computer program stored in said memory and executable on said processor, said processor implementing the steps of said method of detecting a security of a box when executing said computer program.
In a fourth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solutions:
a computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method of detecting a security of a tank.
The beneficial effects of adopting the above embodiment are: in the embodiment, the leakage pressure critical value of the target box body sample is determined, so that the safety of the box bodies of the same type can be conveniently tested; the method comprises the steps of obtaining a target leakage pressure parameter of a box body to be detected in an inflation test, judging the target leakage pressure parameter of the box body to be detected by utilizing a leakage pressure critical value of a target box body sample if the model of the box body to be detected is the same as that of the target box body sample, and determining that the box body to be detected meets a safety standard if the target leakage pressure parameter of the box body to be detected is smaller than the leakage pressure critical value, so that the safety detection efficiency of the box body to be detected is effectively improved, mass detection is facilitated, the detection effect is good, and no negative effect is caused on the box body.
Drawings
FIG. 1 is a flowchart of a method of an embodiment of a method for detecting security of a container provided herein;
FIG. 2 is a flowchart of an embodiment of a method for detecting security of a container S101 according to the present disclosure;
FIG. 3 is a flowchart illustrating an embodiment of a method of detecting security of a container in step S102 or step S203;
FIG. 4 is a functional block diagram of an embodiment of a system for detecting security of a container provided herein;
FIG. 5 is a schematic block diagram of an embodiment of a computer device provided herein.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the application and together with the description, serve to explain the principles of the application and not to limit the scope of the application.
In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase 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. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, the present application provides a method of detecting security of a cabinet, the method comprising the steps of:
s101, determining a leakage pressure critical value of a target box body sample;
s102, acquiring a target leakage pressure parameter of a box body to be tested in an inflation test, wherein the model of the box body to be tested is the same as that of a target box body sample;
s103, judging whether the target leakage pressure parameter of the box body to be detected is smaller than a leakage pressure critical value, and if so, determining that the box body to be detected meets a preset safety standard.
In this embodiment, the target box sample and the box to be tested refer to a battery box of an electric vehicle, and the inflation test may be performed by an air tightness detection device. The safety standard is IP67 national standard; the leak pressure threshold is the maximum leak rate value of the target tank sample meeting the IP67 national standard. The leakage voltage critical value and the target leakage voltage parameter are represented by a leakage rate, and the range is 0-1.
In the embodiment, the leakage pressure critical value of the target box body sample is determined, so that the safety of the box bodies of the same type can be conveniently tested; the method comprises the steps of obtaining a target leakage pressure parameter of a box body to be detected in an inflation test, judging the target leakage pressure parameter of the box body to be detected by utilizing a leakage pressure critical value of a target box body sample if the model of the box body to be detected is the same as that of the target box body sample, and determining that the box body to be detected meets a safety standard if the target leakage pressure parameter of the box body to be detected is smaller than the leakage pressure critical value, so that the safety detection efficiency of the box body to be detected is effectively improved, mass detection is facilitated, the detection effect is good, and no negative effect is caused on the box body.
In one embodiment, referring to fig. 2, the step S101 of determining the leak pressure threshold of the target box sample includes the following steps:
s201, establishing an initial leakage pressure calculation model.
In the embodiment, some research investigations are carried out for establishing a scientific and reliable initial leakage pressure calculation model: when the diameter of the leakage hole of the battery box body is more than 5 mu m, the corresponding leakage rate is 10-6Pa·m3More than s, can be regarded as the viscous flow state; when the diameter of the leak hole is less than 1 μm, the corresponding leak rate is 10-9Pa·m3The molecular flow state can be considered as below/s. Some studies show that the leakage rate is less than 10-7Pa·m3The flow/s is a molecular flow state, so that it can be seen that the argument for determining the flow state of the gas is different. In practice, the shape of the leak hole of the battery box is extremely complex, and it is very difficult to accurately test the leak hole, so that the size of the leak hole and the size of the leak rate are difficult or impossible to determine the air flow state. However, the relationship between leak rate and pressure may be considered.
By carrying out leakage tests under different pressures on the same physical leak hole, the relation between the leakage rate and the pressure is found to present a smooth curve on a single logarithmic coordinate axis, so that the following relation can be assumed:
P=P0×eB·lgQ (1)
a simplified conversion is made to formula (1): P/P0=eB·lgQThe logarithm is taken on both sides of the equation: b, lgQ ═ ln (P/P)0)=2.303*lg(P/P0) It can be derived that:
Figure BDA0003336151340000061
suppose that
Figure BDA0003336151340000062
The following conclusions are made:
Q=m×Pn (2)
in the above formulas (1) and (2), P is a pressure value to which the inflatable test object is subjected, and the unit is MPa; p0Is a standard atmospheric pressure; q is the leakage rate of the inflated test object and has the unit of Pa.m3S; B. m and n are undetermined constants related to the structure of the leak hole.
S202, determining a target box body sample meeting the preset safety standard through a watertight test on a plurality of initial box body samples.
Specifically, for example, in mass production of battery boxes of a certain type, a plurality of battery boxes produced in the first batch can be selected as initial box samples, and then watertight test tests are performed on the initial box samples, according to the existing watertight test method, watertight tests are performed at a position 1m deep water, if the test result shows that no water is leaked, it is determined that the corresponding battery box conforms to the IP67 national standard, and if the test result shows that no water is leaked, it is determined that the corresponding battery box does not conform to the IP67 national standard, so that the battery box conforming to the IP67 national standard is screened out and used as a target box sample.
S203, acquiring a plurality of groups of test parameters through an inflation test on the target box body sample, wherein each test parameter comprises an inflation pressure stabilizing value and a leakage pressure test value of the target box body sample.
In this embodiment, the inflation pressure stabilizing value is a set pressure maintaining value reached by the corresponding battery box body in the process of being inflated, the pressure maintaining value is not less than a standard pressure bearing value, and the standard pressure bearing value is a pressure value of a pressure bearing object, which is determined according to the IP67 national standard (watertight test), and is borne by the pressure bearing object at 1m deep water.
Specifically, the inflation test is performed on one or more target box samples, in this embodiment, an air tightness detection device of the model F620 of ATEQ may be used to perform the inflation test, and two, three, or four sets of test parameters may be acquired for each target box sample. In other embodiments, the average test parameters of the target box sample may be obtained, so as to obtain two, three or four groups of average test parameters, and the calculation in step S204 is performed to determine the undetermined parameters of the initial leakage pressure calculation model.
And S204, determining undetermined parameters of the initial leakage pressure calculation model according to the inflation pressure stabilizing value and the leakage pressure test value in the multiple groups of test parameters to obtain a target leakage pressure calculation model.
Specifically, the values of undetermined parameters m and n can be solved according to the inflation pressure stabilizing value and the leakage pressure test value in the multiple groups of test parameters by substituting formula (2), so that a target leakage pressure calculation model is obtained. It should be noted that, for different types of battery cases, the values of m and n may be different.
S205, determining a leakage pressure critical value of the target box body sample according to the target leakage pressure calculation model and a preset standard pressure-bearing value.
Specifically, the pressure value of the battery box body born at the deep water 1m is P ═ rho gh ═ 0.0098MPa ≈ 0.01MPa, wherein the gravity acceleration g ═ 9.8m/s2. And then substituting the P value into the formula (2), solving the values of m and n at the moment, thus obtaining the leakage rate value of the target box sample and using the leakage rate value as a leakage pressure critical value, and determining the qualified range of the leakage rate of the battery box according to the target box sample because the target box sample conforms to the IP67 national standard, so that in the later stage of production, for the battery box, the size of the leakage rate Q of the box to be tested is tested under the standard pressure bearing condition, whether the sealing performance of the battery box can conform to the IP67 national standard can be judged, and the safety test of the battery box can be efficiently and scientifically completed without testing according to a standard watertight test method.
In one embodiment, referring to fig. 3, the process of the inflation test in step S102 or step S203 includes the following steps:
s301, setting inflation parameters, wherein the inflation parameters at least comprise a pressure maintaining value and pressure maintaining time;
s302, starting to inflate the current box body;
s303, acquiring a real-time pressure value inside the current box body, and judging whether the real-time pressure value reaches a pressure maintaining value or not;
s304, if not, inflating or deflating the current box body until the obtained real-time pressure value inside the current box body reaches the pressure maintaining value, and starting the pressure maintaining process;
s305, obtaining the leakage rate value of the current box body after the pressure maintaining time is over.
In this embodiment, the current box refers to the current battery box, the current battery box refers to the box to be tested when the inflation test of step S102 is performed, and the current battery box refers to the target box sample when the inflation test of step S203 is performed. In this embodiment, an air inflation test is performed on the current battery box body through an F620 type air tightness detection device of the ATEQ, and the specific test process is as follows:
test preparation: the processed positive and negative aerial plug plugs are inserted into the positive and negative aerial plug sockets corresponding to the current battery box body; the communication plug is inserted into the communication socket inside the current battery box body; testing the air tightness of the current battery box by using an F620 type air tightness detection device of ATEQ: inserting the air pipe plug and the current hole position of the pressure release valve of the battery box body oppositely, setting equipment parameters, wherein the equipment parameters are inflation parameters, specifically comprise inflation time, pressure maintaining value and pressure maintaining time, and the specific values of the parameters can be determined according to actual conditions.
The test was started: firstly, pre-charging gas for the current battery box body at a certain charging amount through gas tightness detection equipment; when the preset inflation time is reached, maintaining the pressure of the current battery box body, executing the action of pressurizing or decompressing the current battery box body by checking the pressure value of the current battery box body by the air tightness detection equipment, if the pressure of the current battery box body is overhigh, giving vent gas to the current battery box body for decompression, if the pressure of the current battery box body is overlow, inflating and pressurizing the current battery box body, and if the pressure of the current battery box body is equal to the set pressure maintaining value, keeping the current situation; and finally, stopping the operation of inflating and deflating the current battery box body, enabling the box body to automatically keep state testing, detecting the pressure relief value in the box body through air tightness detection equipment, and calculating the current leakage rate value of the battery box body through the air tightness detection equipment through an internal existing algorithm.
According to the embodiment, through the inflation test method, the operation methods of a soaking test (IP67 national standard requirement) and a case cover disassembly for checking results can be avoided, so that the original assembly state of the battery case body is saved, and the negative influence of safety detection on the battery case body is reduced.
Different from the prior art, the safety test method has the advantages that the leakage pressure critical value of the target box body sample is determined, so that the safety of the box bodies of the same type can be conveniently tested; the method comprises the steps of obtaining a target leakage pressure parameter of a box body to be detected in an inflation test, judging the target leakage pressure parameter of the box body to be detected by utilizing a leakage pressure critical value of a target box body sample if the model of the box body to be detected is the same as that of the target box body sample, and determining that the box body to be detected meets a safety standard if the target leakage pressure parameter of the box body to be detected is smaller than the leakage pressure critical value, so that the safety detection efficiency of the box body to be detected is effectively improved, mass detection is facilitated, the detection effect is good, and no negative effect is caused on the box body.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
The embodiment also provides a system for detecting the safety of the box body, and the system for detecting the safety of the box body corresponds to the method for detecting the safety of the box body in the embodiment one by one. As shown in fig. 4, the system for detecting the security of the box includes a module 401 for determining a critical value, a module 402 for obtaining a parameter, and a module 403 for determining the security. The functional modules are explained in detail as follows:
a critical value determining module 401, configured to determine a leakage pressure critical value of the target box sample;
an obtaining parameter module 402, configured to obtain a target leakage pressure parameter of a box to be tested during an inflation test, where a model of the box to be tested is the same as a model of a target box sample;
and the safety judgment module 403 is configured to judge whether the target leakage parameter of the box to be tested is smaller than a leakage critical value, and if so, determine that the box to be tested meets a preset safety standard.
For specific limitations of each module of the system for detecting the security of the box, reference may be made to the above limitations of the method for detecting the security of the box, and details thereof are not described herein again. All or part of each module in the system for detecting the box security can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
Referring to fig. 5, the present embodiment further provides a computer device, which may be a computing device such as a mobile terminal, a desktop computer, a notebook, a palmtop computer, and a server. The computer device comprises a processor 10, a memory 20 and a display 30. FIG. 5 shows only some of the components of a computer device, but it is to be understood that not all of the shown components are required to be implemented, and that more or fewer components may be implemented instead.
The storage 20 may in some embodiments be an internal storage unit of the computer device, such as a hard disk or a memory of the computer device. The memory 20 may also be an external storage device of the computer device in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), etc. provided on the computer device. Further, the memory 20 may also include both an internal storage unit and an external storage device of the computer device. The memory 20 is used for storing application software installed in the computer device and various data, such as program codes installed in the computer device. The memory 20 may also be used to temporarily store data that has been output or is to be output. In one embodiment, the memory 20 has stored thereon a computer program 40.
The processor 10 may be, in some embodiments, a Central Processing Unit (CPU), microprocessor or other data Processing chip for executing program codes stored in the memory 20 or Processing data, such as executing methods for detecting security of the box.
The display 30 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch panel, or the like in some embodiments. The display 30 is used for displaying information at the computer device and for displaying a visual user interface. The components 10-30 of the computer device communicate with each other via a system bus.
In an embodiment, the following steps are implemented when the processor 10 executes the computer program 40 in the memory 20:
determining a leakage pressure critical value of a target box body sample;
acquiring a target leakage pressure parameter of a box body to be tested in an inflation test, wherein the model of the box body to be tested is the same as that of a target box body sample;
and judging whether the target leakage pressure parameter of the box body to be detected is smaller than a leakage pressure critical value, and if so, determining that the box body to be detected meets a preset safety standard.
The present embodiments also provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of:
determining a leakage pressure critical value of a target box body sample;
acquiring a target leakage pressure parameter of a box body to be tested in an inflation test, wherein the model of the box body to be tested is the same as that of a target box body sample;
and judging whether the target leakage pressure parameter of the box body to be detected is smaller than a leakage pressure critical value, and if so, determining that the box body to be detected meets a preset safety standard.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above.
Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application.

Claims (10)

1. A method of testing the security of a container, the method comprising:
determining a leakage pressure critical value of a target box body sample;
acquiring a target leakage pressure parameter of a box body to be tested in an inflation test, wherein the model of the box body to be tested is the same as that of a target box body sample;
and judging whether the target leakage pressure parameter of the box body to be detected is smaller than the leakage pressure critical value, if so, determining that the box body to be detected meets the preset safety standard.
2. The method for testing the safety of a box according to claim 1, wherein the determining the threshold value of the leakage pressure of the target box sample comprises:
establishing an initial leakage pressure calculation model;
determining a target box sample meeting a preset safety standard through a watertight test on a plurality of initial box samples;
acquiring a plurality of groups of test parameters through an inflation test on the target box body sample, wherein each test parameter comprises an inflation pressure stabilizing value and a leakage pressure test value of the target box body sample;
determining undetermined parameters of the initial leakage pressure calculation model according to the inflation pressure stabilizing value and the leakage pressure test value in the multiple groups of test parameters to obtain a target leakage pressure calculation model;
and determining the leakage pressure critical value of the target box body sample according to the target leakage pressure calculation model and a preset standard pressure-bearing value.
3. A method for detecting the security of a box according to claim 1 or 2, characterized in that said security standard is the IP67 national standard.
4. The method for detecting the safety of the box body according to claim 2, wherein the leakage critical value, the target leakage parameter and the leakage test value are all characterized by a leakage rate, and the range is 0-1.
5. A method of testing the safety of a cabinet as claimed in claim 1 or claim 2, wherein the process of the inflation test includes:
setting inflation parameters, wherein the inflation parameters at least comprise a pressure maintaining value and pressure maintaining time;
starting to inflate the current box body;
acquiring a real-time pressure value inside the current box body, and judging whether the real-time pressure value reaches the pressure maintaining value or not;
if not, performing inflation or deflation operation on the current box body until the obtained real-time pressure value inside the current box body reaches the pressure maintaining value, and starting a pressure maintaining process;
and obtaining the leakage rate value of the current box body after the pressure maintaining time is over.
6. The method for detecting the safety of the box body according to claim 5, wherein the pressure holding value is not less than the standard pressure bearing value, and the standard pressure bearing value is a pressure value of a pressure bearing object bearing at one meter deep water.
7. The method for detecting the safety of the box body according to claim 4, wherein the initial leakage pressure calculation model is as follows: q ═ mxpnWherein m and n are undetermined parameters related to the structure of the leakage hole of the inflatable test object, P is the pressure to which the inflatable test object is subjected, and Q is the leakage rate of the inflatable test object.
8. A system for detecting the security of a container, the system comprising:
the critical value determining module is used for determining the leakage pressure critical value of the target box body sample;
the parameter acquisition module is used for acquiring a target leakage pressure parameter of a box body to be tested in an inflation test, and the model of the box body to be tested is the same as that of a target box body sample;
and the safety judgment module is used for judging whether the target leakage pressure parameter of the box body to be detected is smaller than the leakage pressure critical value or not, and if so, determining that the box body to be detected meets the preset safety standard.
9. Computer device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method of detecting the security of a cabinet according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, characterized in that it stores a computer program which, when being executed by a processor, carries out the steps of the method of detecting the safety of a tank as claimed in any one of claims 1 to 7.
CN202111294548.8A 2021-11-03 2021-11-03 Method, system, equipment and storage medium for detecting box security Pending CN114088311A (en)

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