CN114493323A - Method, system and medium for emergency purging of hydrogen storage vessels - Google Patents
Method, system and medium for emergency purging of hydrogen storage vessels Download PDFInfo
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Abstract
The invention discloses an emergency purging method, a system and a medium for a hydrogen storage container, wherein the method comprises the following steps: the method comprises the steps of obtaining a pressure value detected by a pressure sensor in real time and judging whether a warning condition is met or not, obtaining airflow detection information obtained by real-time detection of an airflow detection assembly if the warning condition is met, judging whether the airflow detection information contains abnormal detection information or not, obtaining an abnormal position corresponding to the abnormal detection information according to an assembly information table if the airflow detection information contains the abnormal detection information, analyzing the abnormal detection information to obtain an abnormal grade, generating a corresponding purging control instruction according to the abnormal position and the abnormal grade, and controlling a purging device to purge through the purging control instruction. The invention belongs to the technical field of hydrogen storage, and by the method, the abnormal position and the abnormal grade can be obtained according to the abnormal detection information, and the purging control instruction is generated for emergency purging, so that the purging treatment of the leakage position of the hydrogen storage container can be performed in a more targeted manner, and the purging efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of hydrogen storage, in particular to an emergency purging method, system and medium for a hydrogen storage container.
Background
The new energy technology has more and more important components in energy conservation and emission reduction, the utilization of hydrogen energy is an important part in the new energy technology, and how to efficiently and safely use the hydrogen energy is a problem which needs to be solved at present. In the prior art, a hydrogen storage container is usually used for pressurizing and storing liquid hydrogen or gaseous hydrogen, however, hydrogen molecules are easy to leak due to small molecular diameter and unstable physical properties, and the hydrogen is easy to explode when being mixed with air after being leaked, so that the problem in the hydrogen energy application process is how to rapidly process the hydrogen when the hydrogen leaks. In the prior art, when hydrogen leaks, the whole tank body is usually purged, but the difficulty in purging the tank body is high, and the leakage position cannot be purged in a targeted manner, so that the purging efficiency is low. Therefore, the prior art method has the problem of low purging efficiency when purging the hydrogen storage container.
Disclosure of Invention
The embodiment of the invention provides an emergency purging method, an emergency purging system and an emergency purging medium for a hydrogen storage container, and aims to solve the problem of low purging efficiency when the hydrogen storage container is purged in the prior art.
In a first aspect, embodiments of the present invention provide a method for emergency purging of a hydrogen storage vessel, the method comprising:
acquiring a pressure value obtained by a pressure sensor for detecting the hydrogen storage container in real time, and judging whether the pressure value meets a preset warning condition or not;
if the pressure value meets the warning condition, acquiring airflow detection information obtained by real-time detection of the airflow detection assembly; the gas flow detection assembly comprises a plurality of detection sub-assemblies arranged at different positions of the hydrogen storage container;
judging whether the airflow detection information contains abnormal detection information or not;
if the airflow detection information contains abnormal detection information, acquiring an abnormal position corresponding to the abnormal detection information according to a preset component information table;
classifying the anomaly detection information according to a preset anomaly classification rule and the anomaly position to obtain a corresponding anomaly grade;
and generating a corresponding purging control command according to the abnormal position and the abnormal grade, so as to control the purging device to purge the abnormal position through the purging control command.
In a second aspect, an embodiment of the present invention provides an emergency purging system for a hydrogen storage container, including an information processing terminal and a purging device, where the information processing terminal is electrically connected to the purging device, a pressure sensor disposed inside the hydrogen storage container, and an airflow detection assembly disposed outside the hydrogen storage container, and the airflow detection assembly includes a plurality of detection sub-assemblies disposed at different positions of the hydrogen storage container;
the information processing terminal includes:
the pressure value judging unit is used for acquiring a pressure value obtained by detecting the hydrogen storage container in real time by the pressure sensor and judging whether the pressure value meets a preset warning condition or not;
the airflow detection information acquisition unit is used for acquiring airflow detection information obtained by real-time detection of the airflow detection component if the pressure value meets the warning condition;
an airflow detection information judgment unit configured to judge whether the airflow detection information includes abnormality detection information;
an abnormal position obtaining unit, configured to obtain, according to a preset component information table, an abnormal position corresponding to the abnormal detection information if the airflow detection information includes the abnormal detection information;
an abnormal grade obtaining unit, configured to grade the abnormal detection information according to a preset abnormal grading rule and the abnormal position to obtain a corresponding abnormal grade;
and the purging processing unit is used for generating a corresponding purging control command according to the abnormal position and the abnormal grade so as to control the purging device to purge the abnormal position through the purging control command.
In a third aspect, an embodiment of the present invention further provides an emergency purging system for a hydrogen storage container, including an information processing terminal and a purging device, where the information processing terminal is electrically connected to the purging device, a pressure sensor disposed inside the hydrogen storage container, and an airflow detecting component disposed outside the hydrogen storage container, the information processing terminal includes a memory, a processor, and a computer program stored in the memory and operable on the processor, and the processor implements the emergency purging method for the hydrogen storage container according to the first aspect when executing the computer program.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which when executed by a processor causes the processor to execute the method for emergency purging of a hydrogen storage vessel according to the first aspect.
The embodiment of the invention provides an emergency purging method, system and medium for a hydrogen storage container. The method comprises the steps of obtaining a pressure value detected by a pressure sensor in real time and judging whether a warning condition is met or not, obtaining airflow detection information obtained by real-time detection of an airflow detection assembly if the warning condition is met, judging whether the airflow detection information contains abnormal detection information or not, obtaining an abnormal position corresponding to the abnormal detection information according to an assembly information table if the airflow detection information contains the abnormal detection information, analyzing the abnormal detection information to obtain an abnormal grade, generating a corresponding purging control instruction according to the abnormal position and the abnormal grade, and controlling a purging device to purge through the purging control instruction. By the method, the abnormal position and the abnormal grade can be obtained according to the abnormal detection information, and the corresponding purging control instruction is generated for emergency purging, so that the purging treatment can be performed on the leakage position of the hydrogen storage container in a more targeted manner, and the purging efficiency is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a method for emergency purging of a hydrogen storage vessel provided by an embodiment of the invention;
FIG. 2 is a schematic diagram of a partial configuration of an emergency purge system for a hydrogen storage vessel provided in an embodiment of the invention;
FIG. 3 is a schematic diagram of a partial configuration of an emergency purge system for a hydrogen storage vessel provided in an embodiment of the invention;
FIG. 4 is a schematic diagram of a partial configuration of an emergency purge system for a hydrogen storage vessel provided in an embodiment of the invention;
FIG. 5 is a sub-flow schematic diagram of a method for emergency purging of a hydrogen storage vessel provided by an embodiment of the present invention;
FIG. 6 is another schematic sub-flow diagram of a method for emergency purging of a hydrogen storage vessel provided by an embodiment of the present invention;
FIG. 7 is a schematic sub-flow diagram of a method for emergency purging of a hydrogen storage vessel provided by an embodiment of the present invention;
FIG. 8 is a schematic flow diagram of yet another sub-process for a method of emergency purging of a hydrogen storage vessel provided in an embodiment of the invention;
FIG. 9 is a schematic flow diagram illustrating a later sub-process of a method for emergency purging of a hydrogen storage vessel provided by an embodiment of the present invention;
FIG. 10 is a schematic view of a subsequent sub-flow diagram of a method for emergency purging of a hydrogen storage vessel provided in accordance with an embodiment of the present invention;
FIG. 11 is a schematic block diagram of an emergency purge system for a hydrogen storage vessel provided by an embodiment of the present invention;
FIG. 12 is a schematic block diagram of a computer device provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1 to 4 and 11, the emergency purging method for a hydrogen storage container is applied to an information processing terminal 10 in an emergency purging system for a hydrogen storage container, the emergency purging system further includes a purging device 20, the information processing terminal 10 is configured to control the purging device 20 to perform emergency purging on the hydrogen storage container 1, a pressure sensor 21 is disposed inside the hydrogen storage container 1, an airflow detecting component 22 is disposed outside the hydrogen storage container 1, the purging device 20, the pressure sensor 21 and the airflow detecting component 22 are simultaneously electrically connected to the information processing terminal 10, the airflow detecting component 22 includes a plurality of detecting sub-components 221 disposed at different positions of the hydrogen storage container 1, and the emergency purging method for a hydrogen storage container is performed by application software installed in the information processing terminal 20; the information processing terminal 20 may be used to execute an emergency purging method of the hydrogen storage vessel to control the purging device 20 to perform emergency purging, and the information processing terminal 20 may be a terminal that processes the detection information and generates a control instruction. As shown in fig. 1, the method includes steps S110 to S160.
S110, acquiring a pressure value obtained by detecting the hydrogen storage container in real time by the pressure sensor, and judging whether the pressure value meets a preset warning condition.
The pressure sensor can be used for detecting the pressure value inside the hydrogen storage container, specifically, the pressure sensor can be arranged in a pipeline at the top of the hydrogen storage container, as liquid hydrogen or gaseous hydrogen is stored in the hydrogen storage container, the gaseous hydrogen is extracted from the hydrogen storage container through the pipeline at the top for use, the pipeline at the top of the hydrogen storage container is certain to be the gaseous hydrogen, and the pressure value obtained by the detection of the pressure sensor is also the gas pressure value of the gaseous hydrogen at the upper layer inside the hydrogen storage container. Whether the pressure value obtained by real-time detection meets the warning condition can be judged. The hydrogen storage container may be a fixed large hydrogen storage container fixed to the bottom surface, or may be a small gas tank mounted on a vehicle to supply energy for the operation of the vehicle.
In one embodiment, as shown in fig. 5, the alert condition includes an alert pressure value, and the step S110 includes the sub-steps of: s1101.
S1101, judging whether the pressure value is smaller than the warning pressure value so as to judge whether the warning condition is met.
Specifically, it may be determined whether the pressure value is smaller than a warning pressure value in the warning condition, thereby determining whether the warning condition is satisfied. If the pressure value is smaller than the warning pressure value, the hydrogen storage container needs to be kept on the warning, so that the warning condition is judged to be met; if the pressure value is not less than the warning pressure value, the hydrogen storage container does not need to be kept on the warning, and therefore the hydrogen storage container is judged to be not satisfied with the warning condition.
Specifically, for the hydrogen storage container, hydrogen in the hydrogen storage container is usually used to be converted into energy, for example, a hydrogen energy source in a fixed large hydrogen storage container is used to generate electricity, or a hydrogen energy source in a vehicle-mounted small gas storage tank is used to perform a function for vehicle operation, a pipeline at the top of the hydrogen storage container can be used to output gaseous hydrogen, if liquid hydrogen or gaseous hydrogen in the hydrogen storage container is used up, the detected pressure value in the hydrogen storage container will also fall below a warning pressure value, and at this time, the pressure value in the hydrogen storage container changes significantly and is not caused by leakage. Therefore, the judgment is made based only on the pressure value to determine whether the warning condition is further entered according to the judgment result, and the abnormality of the hydrogen storage vessel is not judged directly based on the pressure value.
In one embodiment, as shown in fig. 6, the alert condition includes an alert time period and a decreasing threshold, and step S110 includes the sub-steps of: s111 and S112.
The pressure values acquired within a period of time can be comprehensively judged, so that whether the pressure values meet warning conditions or not is judged.
Specifically, if gaseous hydrogen is output in a large number through the pipeline at the top of the hydrogen storage container, the detected change of the pressure value in the hydrogen storage container is not necessarily caused by leakage, if a vehicle runs at high power, hydrogen can be obtained from the inside of the vehicle-mounted small-sized gas storage tank in a large number, the pressure value in the hydrogen storage container can be changed remarkably at the moment, but the change of the pressure value is not caused by leakage at the moment. Therefore, the judgment is made based only on the pressure value to determine whether the warning condition is further entered according to the judgment result, and the abnormality of the hydrogen storage vessel is not judged directly based on the pressure value.
And S111, acquiring a pressure reduction rate corresponding to the warning time period from the pressure value detected in real time.
Specifically, if the warning time period is 0.5 second, a pressure value at the current time point and a pressure value before 0.5 second are obtained from the continuous pressure values obtained by real-time detection, and the pressure drop rate is calculated, that is, the ratio of the difference between the two pressure values to the warning time period.
S112, judging whether the pressure reduction rate is larger than the amplitude reduction threshold value or not so as to judge whether the warning condition is met or not.
Judging whether the pressure drop rate is greater than a drop threshold value, namely judging whether the drop amplitude of the pressure value in the unit time period is overlarge, and if the pressure drop rate is greater than the drop threshold value, judging that the warning condition is met; otherwise, judging that the warning condition is not met.
In the practical application process, the method in step S1101 can be selected to determine whether the warning condition is satisfied, the methods in steps S111 and S112 can be selected to determine whether the warning condition is satisfied, the method in step S1101 can be further combined with the methods in steps S111 and S112 to comprehensively determine whether the warning condition is satisfied, and if the pressure value is determined to be smaller than the warning pressure value, and at the same time, the pressure decrease rate is determined to be greater than the decrease threshold value, and if any one of the determination conditions is satisfied, the warning condition is determined to be satisfied; and if the two judgment conditions are not met, judging that the warning condition is not met.
And S120, if the pressure value meets the warning condition, acquiring the airflow detection information obtained by the real-time detection of the airflow detection component.
If the pressure value meets the warning condition, the air flow detection information obtained by real-time detection of the air flow detection assembly can be obtained, and if the pressure value does not meet the warning condition, the corresponding air flow detection information does not need to be obtained. Specifically, the gas flow detection assembly comprises a plurality of detection subassemblies arranged at different positions of the hydrogen storage container, for example, a grid mesh can be arranged on the outer wall of the hydrogen storage container, a detection subassembly is arranged on the side wall of the grid mesh, and an area enclosed by each grid unit in the grid mesh corresponds to one detection block, wherein the detection subassembly can be a micro flow sensor, for example, an on-chip integrated micro flow sensor manufactured based on Complementary Metal Oxide Semiconductor (CMOS) technology, and the micro flow sensor can be used for detecting gas flow with a fine flow rate. Specifically, when the hydrogen storage container leaks liquid hydrogen or gaseous hydrogen, the liquid hydrogen can gasify rapidly at the leakage point, and gaseous hydrogen can lead to the velocity of flow of peripheral gas to accelerate suddenly when leaking, so the leakage point periphery can detect the sudden change that obtains the air current, then include the air current detected value that each detection subassembly corresponds in the air current detected information, and the unit of air current detected value is meter per second (m/s).
And S130, judging whether the airflow detection information contains abnormal detection information.
Whether the airflow detection information contains abnormal detection information or not can be judged, namely whether the airflow detection information contains an airflow detection value larger than a preset airflow threshold value or not is judged. If the airflow detection information does not contain abnormal detection information, the fact that the air pressure value fluctuates is not caused by leakage is indicated, and safety guarantee alarming is not needed.
In one embodiment, as shown in fig. 7, step S130 includes the sub-steps of: s131, S132, and S133.
S131, judging whether the airflow detection value of the detection subassembly in the airflow detection information is larger than a preset airflow threshold value.
The airflow detection value of each detection subassembly in the airflow detection information can be compared with a preset airflow threshold value, for example, the detection sensitivity of the miniature thermal flow sensor is usually less than 0.1m/s, namely the sensitivity is the minimum unit value detectable by the miniature thermal flow sensor; the configurable airflow threshold is 0.2m/s, and it can be sequentially determined whether the airflow detection value of each detection subassembly is greater than 0.2 m/s.
S132, if the airflow detection value of any detection subassembly is larger than the airflow threshold value, acquiring the airflow detection value of the detection subassembly larger than the airflow threshold value as abnormal detection information, and judging that the airflow detection information contains the abnormal detection information.
And if the airflow detection value of any one detection subassembly is larger than the airflow threshold value, determining the detection subassembly as a current abnormal subassembly, and acquiring the airflow detection values corresponding to all the abnormal subassemblies as corresponding abnormal detection information. If the airflow detection value of any one detection subassembly is larger than the airflow threshold value, the obtained airflow detection information is judged to contain abnormal detection information.
S133, if the airflow detection values of the detection sub-assemblies are not larger than the airflow threshold value, it is determined that the airflow detection information does not contain abnormal detection information.
And if the airflow detection values of all the detection subassemblies are not greater than the airflow threshold value, judging that the middle part of the airflow detection information contains abnormal detection information.
And S140, if the airflow detection information contains abnormal detection information, acquiring an abnormal position corresponding to the abnormal detection information according to a preset component information table.
The information processing terminal is further provided with a component information table, if the airflow detection information contains abnormal detection information, the abnormal position corresponding to the abnormal detection information can be obtained from the component information table, specifically, the component information table contains an identification code and a detection site of each detection subassembly, the identification code is coding information uniquely corresponding to each detection subassembly, the detection subassemblies can be identified through the identification code, and the detection site is position identification information corresponding to the position of the detection subassembly on the hydrogen storage container.
For example, the detection marks corresponding to the detection blocks longitudinally arranged in the grid network are A, B, C … in sequence, the detection marks corresponding to the detection blocks transversely arranged are 1, 2 and 3 … in sequence, each detection block corresponds to four side walls, namely an upper side wall, a lower side wall, a left side wall and a right side wall, and each side wall is provided with one detection subassembly. If the identification code of a detection subassembly is 11035102 and the detection site is D2 ×) and the detection subassembly is located in the detection blocks of row D and column 2, the detection subassembly is disposed on the upper sidewall of the detection block. In the practical application process, the identification information corresponding to each detection block can be attached to the area corresponding to the corresponding detection block in the outer wall of the hydrogen storage container.
In one embodiment, as shown in fig. 8, step S140 includes the sub-steps of: s141, S142 and S143.
S141, acquiring an abnormal detection site corresponding to each detection sub-component in the abnormal detection information according to the component information table.
And the abnormality detection information comprises at least one detection sub-assembly with abnormality, the abnormality detection information comprises an identification code of the at least one detection sub-assembly, and the detection site corresponding to each identification code is obtained from the assembly information table in a matching manner through the identification code of the detection sub-assembly contained in the abnormality detection information so as to obtain the corresponding abnormality detection site.
And S142, determining the detection block corresponding to each abnormal detection position point.
In a specific application process, a plurality of detection subassemblies are configured in one detection block, that is, each detection block corresponds to a plurality of detection points, so that one leakage point may be detected by the plurality of detection subassemblies in the detection block at the same time, and the detection block to which the leakage point belongs can be determined according to the abnormal detection point.
For example, the detection blocks corresponding to the abnormality detection positions D2 ↓andd 2 ↓ared 2.
And S143, merging and sorting the detection blocks corresponding to the abnormal detection positions, and taking the abnormal detection blocks obtained by merging and sorting as corresponding abnormal positions.
And merging and sorting the detection blocks corresponding to the abnormal detection points so as to eliminate repeated detection blocks, wherein the detection blocks obtained after sorting can be used as abnormal detection blocks, one or more abnormal detection blocks obtained after sorting can be determined as corresponding abnormal positions, and the abnormal positions at least comprise one abnormal detection block.
S150, grading the anomaly detection information according to a preset anomaly grading rule and the anomaly position to obtain a corresponding anomaly grade.
The abnormality detection information can be classified according to the abnormality classification rule and the abnormality position, specifically, the abnormality position comprises one or more abnormality detection blocks, and in order to perform targeted purging processing on the abnormality detection blocks, the abnormality detection value corresponding to each abnormality detection block can be obtained from the abnormality detection information, and each abnormality detection block is classified according to the abnormality classification rule to obtain the abnormality grade corresponding to each abnormality detection block.
In one embodiment, as shown in FIG. 9, step S150 includes sub-steps S151 and S152.
S151, obtaining an abnormal detection value corresponding to each abnormal detection block from the abnormal detection information according to the abnormal detection block included in the abnormal position.
The abnormal position includes one or more abnormal detection blocks, each abnormal detection block correspondingly includes a plurality of detection subassemblies, the abnormal detection value of the detection subassembly included in each abnormal detection block can be obtained from the abnormal detection information, and each abnormal detection block corresponds to at least one abnormal detection value.
S152, respectively grading the flow rate of the abnormal detection value of each abnormal detection block according to the abnormal grading rule to obtain the abnormal grade corresponding to each abnormal detection block.
The abnormal detection values corresponding to each abnormal detection block can be classified according to the abnormal classification rule, that is, the corresponding grade information is determined based on the abnormal airflow speed corresponding to the abnormal detection block. Specifically, the abnormality classification rule includes a plurality of flow rate classification sections, each of which corresponds to one flow rate class, for example, low flow rate — (0.2, 0.5), medium flow rate — (0.5, 1.5), and high flow rate — (1.5, + ∞) so as to obtain an average value of airflow detection of the abnormality detection values included in each abnormality detection block, and determine one flow rate classification section in the abnormality classification rule that matches the average value of airflow detection, thereby determining the flow rate class corresponding to the flow rate classification section as the abnormality class corresponding to the current abnormality detection block.
And S160, generating a corresponding purging control command according to the abnormal position and the abnormal grade, and controlling the purging device to purge the abnormal position through the purging control command.
The corresponding purging control instruction can be generated according to the abnormal position and the abnormal grade, and the information processing terminal controls the purging device to act through the generated purging control instruction, so that the emergency purging treatment on the abnormal position where the leakage occurs in the hydrogen storage container is realized.
Specifically, the purging device comprises a purging support and a driving motor which are arranged on a sliding rail, the information processing terminal controls the driving motor to pull the purging support to slide to a preset position according to a purging control instruction, purging nozzles are arranged on the purging support, each purging nozzle is over against a detection block on the hydrogen storage container, and the information processing terminal controls the purging nozzles corresponding to the abnormal positions to eject gas according to the purging control instruction so as to purge leaked hydrogen. The pipeline inside the purging support can be used for conveying liquid nitrogen, and the liquid nitrogen is subjected to reduced pressure gasification at the purging nozzle, so that leaked hydrogen can be purged through a large amount of nitrogen sprayed from the purging nozzle.
In one embodiment, as shown in fig. 10, step S160 includes the sub-steps of: s161 and S162.
And S161, configuring corresponding purging movement parameters and purging nozzle parameters in a pre-stored instruction template according to the abnormal position.
Specifically, an instruction template is pre-configured in the information processing terminal, and the instruction template comprises various parameters to be configured, so that corresponding purging movement parameters and purging nozzle parameters can be generated according to the abnormal position.
For example, if the abnormal detection block included in the abnormal position information is D2, the corresponding purge moving parameter may be configured based on the 2 nd row where the abnormal detection block is located, if a moving unit is spaced between the center points of two adjacent detection blocks, the 2 nd row corresponds to two moving units, the purge moving parameter is configured to be 2 moving units, and the row D, that is, the row D, corresponds to the fourth purge nozzle (the first purge nozzle on the top is taken as the starting position to rotate counterclockwise), so that the corresponding purge nozzle reference may be configured according to the purge nozzle corresponding to the abnormal detection block, if the purge nozzle parameter is configured to be "D".
Specifically, before step S161, the method further includes the steps of: judging whether the abnormal position meets a preset emergency purging condition or not; .
Specifically, before parameter configuration is performed on the instruction template, whether the abnormal position meets an emergency purging condition or not can be judged, that is, whether the abnormal position can be purged through the purging device or not is judged. Specifically, whether the number of abnormal detection blocks included in the abnormal position is greater than 1 or not can be judged, and if the number of abnormal detection blocks included in the abnormal position is not greater than 1, the emergency purging condition is judged to be met; if the number of the abnormal detection blocks in the abnormal position is more than 1, whether the abnormal detection blocks are positioned in the same row or not can be further judged, if the abnormal detection blocks are positioned in the same row, the emergency purging condition is judged to be met, and at the moment, the purging nozzles can be simultaneously opened to simultaneously purge the abnormal detection blocks in the same row; if the plurality of abnormal detection blocks are not in the same row, the emergency purging condition is judged not to be met, and at the moment, reminding information can be sent out to remind a user of taking other emergency safety guarantee measures.
And S162, configuring corresponding purge flow parameters in the instruction template according to the abnormal grade to generate corresponding purge control instructions.
The method can perform parameter configuration on the instruction template obtained in the previous step according to the abnormal grade, specifically, the corresponding purge flow parameter can be determined according to the abnormal grade, and the purge flow parameter is correspondingly configured in the instruction template obtained in the previous step, so as to generate the purge control instruction.
After the purging control instruction is generated, the information processing terminal can execute the purging control instruction so as to control the purging device to perform purging treatment. Specifically, the action of the driving motor can be controlled according to the purging control command so as to pull the purging bracket to slide to the preset position. For example, if the purge movement parameter configured in the purge control command is 2 movement units (for example, one unit is 10 cm), the driving motor is controlled to pull the purge holder to slide forward from the initial position by 2 movement units. Furthermore, the information processing terminal can control the corresponding purging nozzles on the purging support to be opened according to the purging control instruction, and controls the valve to inject liquid nitrogen with corresponding flow according to the numerical value set by the purging flow parameter. For example, if the purge orifice parameter configured in the purge control command is "D", the fourth purge orifice is controlled to be opened, and the size of the valve configured upstream of the purge orifice is controlled according to the purge flow parameter.
In the safety guarantee alarm method for liquid hydrogen storage provided by the embodiment of the invention, the pressure value detected by the pressure sensor in real time is obtained, whether the warning condition is met or not is judged, if the warning condition is met, the gas flow detection information obtained by the gas flow detection assembly in real time is obtained, whether the gas flow detection information contains abnormal detection information or not is judged, if the abnormal detection information contains the abnormal detection information, the abnormal position corresponding to the abnormal detection information is obtained according to the assembly information table, the abnormal detection information is analyzed to obtain the abnormal grade, and the corresponding purging control instruction is generated according to the abnormal position and the abnormal grade, so that the purging device is controlled to perform purging processing through the purging control instruction. By the method, the abnormal position and the abnormal grade can be obtained according to the abnormal detection information, and the corresponding purging control instruction is generated for emergency purging, so that the purging treatment can be performed on the leakage position of the hydrogen storage container in a more targeted manner, and the purging efficiency is greatly improved.
The embodiment of the invention also provides an emergency purging system of the hydrogen storage container, and an information processing terminal in the emergency purging system of the hydrogen storage container is used for executing any embodiment of the emergency purging method of the hydrogen storage container. Specifically, referring to fig. 11, fig. 11 is a schematic block diagram of an emergency purging system of a hydrogen storage vessel according to an embodiment of the present invention.
As shown in fig. 11, the emergency purging system 100 of the hydrogen storage container at least includes an information processing terminal 10 and a purging device 20, the emergency purging system 100 may further include a pressure sensor 21 disposed inside the hydrogen storage container 1 and an air flow detecting assembly 22 disposed outside the hydrogen storage container 1, the information processing terminal 10 is electrically connected to the purging device 20, the pressure sensor 21 and the air flow detecting assembly 22 at the same time, and the air flow detecting assembly 22 includes a plurality of detecting subassemblies 221 disposed at different positions of the hydrogen storage container 1. The information processing terminal 10 includes: a pressure value determination unit 110, a gas flow detection information acquisition unit 120, a gas flow detection information determination unit 130, an abnormal position acquisition unit 140, an abnormal level acquisition unit 150, and a purge processing unit 160.
The pressure value judging unit 110 is configured to obtain a pressure value obtained by detecting the hydrogen storage container in real time by the pressure sensor, and judge whether the pressure value meets a preset warning condition.
And an airflow detection information obtaining unit 120, configured to obtain airflow detection information obtained by real-time detection of the airflow detection component if the pressure value satisfies the warning condition.
An airflow detection information determining unit 130, configured to determine whether the airflow detection information includes abnormal detection information.
An abnormal position obtaining unit 140, configured to obtain, according to a preset component information table, an abnormal position corresponding to the abnormal detection information if the airflow detection information includes the abnormal detection information.
An exception level obtaining unit 150, configured to grade the exception detection information according to a preset exception grading rule and the exception position, so as to obtain a corresponding exception level.
And the purging processing unit 160 is configured to generate a corresponding purging control command according to the abnormal position and the abnormal level, so as to control the purging device to purge the abnormal position through the purging control command.
The emergency purging system for the hydrogen storage container provided by the embodiment of the invention is applied to the emergency purging method for the hydrogen storage container, the pressure value detected by the pressure sensor in real time is obtained, whether the warning condition is met or not is judged, if the warning condition is met, the airflow detection information obtained by the airflow detection component through real-time detection is obtained, whether the airflow detection information contains abnormal detection information or not is judged, if the airflow detection information contains abnormal detection information, the abnormal position corresponding to the abnormal detection information is obtained according to the component information table, the abnormal detection information is analyzed to obtain the abnormal grade, and the corresponding purging control instruction is generated according to the abnormal position and the abnormal grade, so that the purging device is controlled to perform purging processing through the purging control instruction. By the method, the abnormal position and the abnormal grade can be obtained according to the abnormal detection information, and the corresponding purging control instruction is generated for emergency purging, so that the purging treatment can be performed on the leakage position of the hydrogen storage container in a more targeted manner, and the purging efficiency is greatly improved.
The information processing terminal in the emergency purging system of the hydrogen storage container described above may be implemented in the form of a computer program that can be run on a computer device as shown in fig. 12.
Referring to fig. 12, fig. 12 is a schematic block diagram of a computer device according to an embodiment of the present invention. The computer device may be an information processing terminal of a terminal device for performing an emergency purging method of the hydrogen storage vessel to control the purging means to perform emergency purging.
Referring to fig. 12, the computer device 500 includes a processor 502, memory, and a network interface 505 connected by a system bus 501, where the memory may include a storage medium 503 and an internal memory 504.
The storage medium 503 may store an operating system 5031 and a computer program 5032. The computer program 5032, when executed, may cause the processor 502 to perform a method of emergency purging of a hydrogen storage vessel, wherein the storage medium 503 may be a volatile storage medium or a non-volatile storage medium.
The processor 502 is used to provide computing and control capabilities that support the operation of the overall computer device 500.
The internal memory 504 provides an environment for the operation of the computer program 5032 in the storage medium 503, which when executed by the processor 502, causes the processor 502 to perform a method for emergency purging of a hydrogen storage vessel.
The network interface 505 is used for network communication, such as providing transmission of data information. Those skilled in the art will appreciate that the configuration shown in fig. 12 is a block diagram of only a portion of the configuration associated with aspects of the present invention and is not intended to limit the computing device 500 to which aspects of the present invention may be applied, and that a particular computing device 500 may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
Wherein the processor 502 is configured to run a computer program 5032 stored in the memory to perform the corresponding functions in the above-described method for emergency purging of a hydrogen storage vessel.
Those skilled in the art will appreciate that the embodiment of a computer device illustrated in fig. 12 does not constitute a limitation on the specific construction of the computer device, and that in other embodiments a computer device may include more or fewer components than those illustrated, or some components may be combined, or a different arrangement of components. For example, in some embodiments, the computer device may only include a memory and a processor, and in such embodiments, the structures and functions of the memory and the processor are consistent with those of the embodiment shown in fig. 12, and are not described herein again.
It should be understood that, in the embodiment of the present invention, the Processor 502 may be a Central Processing Unit (CPU), and the Processor 502 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In another embodiment of the invention, a computer-readable storage medium is provided. The computer readable storage medium may be a volatile or non-volatile computer readable storage medium. The computer readable storage medium stores a computer program, wherein the computer program when executed by a processor implements the steps involved in the method for emergency purging of a hydrogen storage vessel as described above.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses, devices and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. Those of ordinary skill in the art will appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components and steps of the various examples have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided by the present invention, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only a logical division, and there may be other divisions when the actual implementation is performed, or units having the same function may be grouped into one unit, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a computer-readable storage medium, which includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned computer-readable storage media comprise: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An emergency purging method for a hydrogen storage container, which is applied to an information processing terminal in an emergency purging system of the hydrogen storage container, wherein the emergency purging system further comprises a purging device, and the information processing terminal is used for controlling the purging device to perform emergency purging on the hydrogen storage container, and the method comprises the following steps:
acquiring a pressure value obtained by a pressure sensor for detecting the hydrogen storage container in real time, and judging whether the pressure value meets a preset warning condition or not;
if the pressure value meets the warning condition, acquiring airflow detection information obtained by real-time detection of an airflow detection assembly; the gas flow detection assembly comprises a plurality of detection sub-assemblies arranged at different positions of the hydrogen storage container;
judging whether the airflow detection information contains abnormal detection information or not;
if the airflow detection information contains abnormal detection information, acquiring an abnormal position corresponding to the abnormal detection information according to a preset component information table;
classifying the anomaly detection information according to a preset anomaly classification rule and the anomaly position to obtain a corresponding anomaly grade;
and generating a corresponding purging control command according to the abnormal position and the abnormal grade, so as to control the purging device to purge the abnormal position through the purging control command.
2. An emergency purging method of a hydrogen storage vessel as claimed in claim 1, wherein the alert condition includes an alert pressure value, and the determining whether the pressure value satisfies a preset alert condition includes:
and judging whether the pressure value is smaller than the warning pressure value or not so as to judge whether the warning condition is met or not.
3. An emergency purging method of a hydrogen storage vessel as claimed in claim 1, wherein the alert conditions include an alert time period and a decreasing threshold, and the determining whether the pressure value satisfies a preset alert condition comprises:
acquiring a pressure drop rate corresponding to the warning time period from the pressure value detected in real time;
and judging whether the pressure reduction rate is greater than the amplitude reduction threshold value or not so as to judge whether the warning condition is met or not.
4. An emergency purging method of a hydrogen storage container as claimed in claim 1, wherein the determining whether the gas flow detection information includes abnormality detection information includes:
judging whether the airflow detection value of the detection subassembly in the airflow detection information is larger than a preset airflow threshold value or not;
if the airflow detection value of any detection subassembly is larger than the airflow threshold value, acquiring the airflow detection value of the detection subassembly larger than the airflow threshold value as abnormal detection information, and judging that the airflow detection information contains the abnormal detection information;
and if the airflow detection values of the detection sub-assemblies are not larger than the airflow threshold value, judging that the airflow detection information does not contain abnormal detection information.
5. An emergency purging method of a hydrogen storage container as claimed in claim 1, wherein the acquiring of the abnormal position corresponding to the abnormality detection information according to a preset component information table includes:
acquiring an abnormal detection site corresponding to each detection sub-component in the abnormal detection information according to the component information table;
determining a detection block corresponding to each abnormal detection site;
and merging and sorting the detection blocks corresponding to each abnormal detection position point, and taking the abnormal detection blocks obtained by merging and sorting as corresponding abnormal positions.
6. An emergency purging method of a hydrogen storage container as claimed in claim 1, wherein the classifying the abnormality detection information according to a preset abnormality classification rule and the abnormality location to obtain a corresponding abnormality classification includes:
acquiring an abnormal detection value corresponding to each abnormal detection block from the abnormal detection information according to the abnormal detection blocks contained in the abnormal position;
and respectively grading the flow rate of the abnormal detection value of each abnormal detection block according to the abnormal grading rule so as to obtain the abnormal grade corresponding to each abnormal detection block.
7. An emergency purge method of a hydrogen storage vessel as claimed in claim 1, wherein said generating corresponding purge control commands based on said anomaly location and said anomaly level comprises:
configuring corresponding purging movement parameters and purging nozzle parameters in a pre-stored instruction template according to the abnormal position;
and configuring corresponding purging flow parameters in the instruction template according to the abnormal grade to generate a corresponding purging control instruction.
8. An emergency purging system of a hydrogen storage container is characterized by comprising an information processing terminal and a purging device, wherein the information processing terminal is simultaneously electrically connected with the purging device, a pressure sensor arranged in the hydrogen storage container and an airflow detection assembly arranged outside the hydrogen storage container, and the airflow detection assembly comprises a plurality of detection sub-assemblies arranged at different positions of the hydrogen storage container;
the information processing terminal includes:
the pressure value judging unit is used for acquiring a pressure value obtained by detecting the hydrogen storage container in real time by the pressure sensor and judging whether the pressure value meets a preset warning condition or not;
the airflow detection information acquisition unit is used for acquiring airflow detection information obtained by real-time detection of the airflow detection component if the pressure value meets the warning condition;
an airflow detection information judgment unit configured to judge whether the airflow detection information includes abnormality detection information;
an abnormal position obtaining unit, configured to obtain, according to a preset component information table, an abnormal position corresponding to the abnormal detection information if the airflow detection information includes the abnormal detection information;
an abnormal grade obtaining unit, configured to grade the abnormal detection information according to a preset abnormal grading rule and the abnormal position to obtain a corresponding abnormal grade;
and the purging processing unit is used for generating a corresponding purging control command according to the abnormal position and the abnormal grade so as to control the purging device to purge the abnormal position through the purging control command.
9. An emergency purging system for a hydrogen storage container, the system comprising an information processing terminal and a purging device, the information processing terminal being electrically connected to the purging device, a pressure sensor disposed inside the hydrogen storage container and an airflow detecting component disposed outside the hydrogen storage container, the information processing terminal comprising a memory, a processor and a computer program stored in the memory and operable on the processor, wherein the processor executes the computer program to implement the emergency purging method for a hydrogen storage container according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the method for emergency purging of a hydrogen storage vessel as claimed in any one of claims 1 to 7.
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