CN114255571A - Safety guarantee alarm method, system and medium for liquid hydrogen storage - Google Patents
Safety guarantee alarm method, system and medium for liquid hydrogen storage Download PDFInfo
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 139
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- 230000035945 sensitivity Effects 0.000 description 2
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- 229910044991 metal oxide Inorganic materials 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
Abstract
The invention discloses a safety guarantee alarm method, a system and a medium for liquid hydrogen storage, 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, obtaining airflow detection information obtained by the airflow detection component through real-time detection if the warning condition is met, judging whether the airflow detection information contains abnormal detection information, obtaining an abnormal position corresponding to the abnormal detection information according to a component information table if the airflow detection information contains the abnormal detection information, and generating corresponding safety guarantee alarm information according to the abnormal position. The invention belongs to the technical field of liquid hydrogen storage, and by the method, whether abnormal detection information is contained or not can be judged through the airflow detection information under the condition that the pressure value meets the warning condition, and the abnormal position is obtained and safety guarantee alarm information is generated when the abnormal detection information is contained, so that the specific position of the hydrogen storage tank, which is leaked, can be quickly and accurately obtained, and safety measures can be taken more pertinently according to the safety guarantee alarm information.
Description
Technical Field
The invention relates to the technical field of liquid hydrogen storage, in particular to a safety guarantee alarm method, a system and a medium for liquid hydrogen storage.
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 tank is usually used for storing liquid hydrogen, however, the liquid hydrogen needs to be stored at a low temperature, and the liquid hydrogen is easy to gasify into gaseous hydrogen and leaks due to unstable physical properties. Therefore, the prior art method has the problem that the leakage condition of the hydrogen storage tank cannot be accurately monitored.
Disclosure of Invention
The embodiment of the invention provides a safety guarantee alarm method, a system and a medium for liquid hydrogen storage, aiming at solving the problem that the leakage condition of a hydrogen storage tank cannot be accurately monitored in the prior art.
In a first aspect, an embodiment of the present invention provides a safety guarantee alarm method for liquid hydrogen storage, where the method includes:
acquiring a pressure value obtained by real-time detection of a pressure sensor 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 subassemblies which are arranged at different positions of the hydrogen storage tank;
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;
and generating corresponding safety guarantee alarm information according to the abnormal position.
In a second aspect, an embodiment of the present invention provides a safety guarantee alarm system for liquid hydrogen storage, including a pressure sensor disposed inside a hydrogen storage tank, an airflow detection assembly disposed outside the hydrogen storage tank, and an information processing terminal electrically connected to the pressure sensor and the airflow detection assembly at the same time, where the airflow detection assembly includes a plurality of detection sub-assemblies disposed at different positions of the hydrogen storage tank;
the information processing terminal includes:
the pressure value judging unit is used for acquiring a pressure value obtained by real-time detection of 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;
and the safety guarantee alarm information generating unit is used for generating corresponding safety guarantee alarm information according to the abnormal position.
In a third aspect, an embodiment of the present invention further provides a safety guarantee alarm system for liquid hydrogen storage, including a pressure sensor disposed inside a hydrogen storage tank, an airflow detection component disposed outside the hydrogen storage tank, and an information processing terminal electrically connected to the pressure sensor and the airflow detection component at the same time, where the information processing terminal includes a memory, a processor, and a computer program stored in the memory and operable on the processor, and when the processor executes the computer program, the safety guarantee alarm method for liquid hydrogen storage according to the first aspect is implemented.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program, when executed by a processor, causes the processor to execute the method for warning safety and security of liquid hydrogen storage according to the first aspect.
The embodiment of the invention provides a safety guarantee alarm method, a system and a medium for liquid hydrogen storage. 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, obtaining airflow detection information obtained by the airflow detection component through real-time detection if the warning condition is met, judging whether the airflow detection information contains abnormal detection information, obtaining an abnormal position corresponding to the abnormal detection information according to a component information table if the airflow detection information contains the abnormal detection information, and generating corresponding safety guarantee alarm information according to the abnormal position. By the method, whether the abnormal detection information is contained or not can be judged through the airflow detection information under the condition that the pressure value meets the warning condition, the abnormal position is obtained when the abnormal detection information is contained, the safety guarantee warning information is generated, the specific position where the hydrogen storage tank leaks can be quickly and accurately obtained, and therefore safety measures can be taken more pertinently according to the safety guarantee warning information.
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 chart of a safety guarantee alarm method for liquid hydrogen storage according to an embodiment of the present invention;
fig. 2 is a schematic partial structural diagram of a safety guarantee alarm system for liquid hydrogen storage according to an embodiment of the present invention;
fig. 3 is a schematic partial structural diagram of a safety guarantee alarm system for liquid hydrogen storage according to an embodiment of the present invention;
fig. 4 is a sub-flow diagram of a safety guarantee alarm method for liquid hydrogen storage according to an embodiment of the present invention;
fig. 5 is another schematic sub-flow diagram of a safety guarantee alarm method for liquid hydrogen storage according to an embodiment of the present invention;
fig. 6 is a schematic view of another sub-flow of the safety guarantee alarm method for liquid hydrogen storage according to the embodiment of the present invention;
fig. 7 is a schematic view of another sub-flow of the safety guarantee alarm method for liquid hydrogen storage according to the embodiment of the present invention;
fig. 8 is another schematic flow chart of a safety guarantee alarm method for liquid hydrogen storage according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a later sub-process of the safety guarantee alarm method for liquid hydrogen storage according to the embodiment of the present invention;
FIG. 10 is a schematic block diagram of a safety assurance alarm system for liquid hydrogen storage provided by an embodiment of the present invention;
FIG. 11 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 3 and 10, the safety guarantee alarm method for liquid hydrogen storage is applied to an information processing terminal 20, the information processing terminal 20 is used for carrying out safety guarantee monitoring on a hydrogen storage tank 10, a pressure sensor 21 is arranged inside the hydrogen storage tank 10, an airflow detection assembly 22 is arranged outside the hydrogen storage tank 10, the pressure sensor 21 and the airflow detection assembly 22 are simultaneously electrically connected with the information processing terminal 20, the airflow detection assembly 22 comprises a plurality of detection subassemblies 221 arranged at different positions of the hydrogen storage tank 10, and the safety guarantee alarm method for liquid hydrogen storage is executed through application software installed in the information processing terminal 20; the information processing terminal 20 may be a terminal device that performs a safety guarantee alarm method for liquid hydrogen storage to monitor the safety guarantee of the hydrogen storage tank 10, the information processing terminal 20 may be a terminal device that processes detection information and sends safety guarantee alarm information, the safety guarantee alarm information may be text alarm information, and light alarm information and/or sound alarm information may be combined on the basis of the text alarm information. As shown in fig. 1, the method includes steps S110 to S150.
S110, acquiring a pressure value obtained by detecting the hydrogen storage tank 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 tank, specifically, the pressure sensor can be arranged in a pipeline at the top of the hydrogen storage tank, liquid hydrogen is layered in the hydrogen storage tank, the lower layer is liquid hydrogen, the upper layer is gasified gaseous hydrogen, the pipeline at the top of the hydrogen storage tank is certainly gaseous hydrogen, and the pressure value obtained by detection of the pressure sensor is also the pressure value of the gaseous hydrogen at the upper layer inside the hydrogen storage tank. Whether the pressure value obtained by real-time detection meets the warning condition can be judged. The hydrogen storage tank may be a large fixed hydrogen storage tank fixed to the bottom surface, or may be a small in-vehicle gas storage tank disposed in the vehicle to supply power for the running of the vehicle.
In one embodiment, as shown in fig. 4, 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 tank needs to be kept in a warning state, 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 tank does not need to be kept on the warning, and therefore the condition that the warning condition is not met is judged.
Specifically, for the hydrogen storage tank, hydrogen in the hydrogen storage tank is usually used to be converted into energy, for example, a hydrogen energy source in a fixed large-scale hydrogen storage tank is used to generate electricity, or a hydrogen energy source in a vehicle-mounted small-scale gas storage tank is used to perform functions for vehicle operation, a pipeline at the top of the hydrogen storage tank can be used to output gaseous hydrogen, if liquid hydrogen in the hydrogen storage tank is used up, the detected pressure value in the hydrogen storage tank can also be reduced to be below a warning pressure value, and the pressure value in the hydrogen storage tank is obviously changed and is not caused by leakage. Therefore, the determination is made here based only on the pressure value to determine whether the hydrogen storage tank is further armed based on the determination result, rather than directly determining that the hydrogen storage tank is abnormal based on the pressure value.
In one embodiment, as shown in fig. 5, 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 carry out a large amount of outputs to gaseous state hydrogen through the pipeline at hydrogen storage tank top, then detect and obtain the pressure value in the hydrogen storage tank and change and not necessarily because reveal and lead to, if the vehicle carries out high-power when moving, can follow in the on-vehicle small-size gas storage tank and obtain hydrogen in a large number, then the pressure value in the hydrogen storage tank can take place to show the change this moment, but this moment is not because revealing and lead to the pressure value change. Therefore, the determination is made here based only on the pressure value to determine whether the hydrogen storage tank is further armed based on the determination result, rather than directly determining that the hydrogen storage tank is abnormal 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.
And S112, 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.
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 airflow detection assembly includes a plurality of detection subassemblies arranged at different positions of the hydrogen storage tank, for example, a grid mesh may be arranged on an outer wall of the hydrogen storage tank, a detection subassembly is arranged on a side wall of the grid mesh, and an area surrounded by each unit mesh in the grid mesh corresponds to one detection block, wherein the detection subassembly may be a micro flow sensor, for example, an on-chip integrated micro flow sensor manufactured based on a Complementary Metal Oxide Semiconductor (CMOS) technology, and the micro flow sensor may be used for detecting airflow at a fine flow rate. Specifically, when hydrogen storage tank takes place liquid hydrogen or gaseous hydrogen and reveals, liquid hydrogen can gasify at the leak point rapidly, and gaseous hydrogen can lead to the velocity of flow of peripheral gas to accelerate suddenly when then taking place to reveal, consequently the leak point periphery can detect the sudden change that obtains the air current, then include the air current detected value that each detected 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. 6, 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 abnormality detection information, an abnormality position corresponding to the abnormality 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 encoding 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 subassemblies on the hydrogen storage tank.
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 tank.
In one embodiment, as shown in fig. 7, 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 ↓ are D2.
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.
In an embodiment, as shown in fig. 8, the step S140 further includes the following steps: s1410 and S1420.
And S1410, grading the abnormality detection information and the abnormality position according to a preset abnormality grading rule to obtain a corresponding abnormality grade.
In a specific application process, before generating the safety guarantee alarm information, the abnormality detection information and the abnormality position can be classified according to an abnormality classification rule, so that a corresponding abnormality grade is obtained, the abnormality classification rule is rule information for classifying the abnormal condition of the hydrogen storage tank, the abnormality grade comprises an abnormality range grade and an abnormality flow rate grade, the abnormality range grade is grade information determined based on the range of the hydrogen storage tank with the abnormality, and the abnormality flow rate grade is grade information determined based on the flow rate of the hydrogen storage tank with the abnormality.
In one embodiment, as shown in fig. 11, step S1410 includes the sub-steps of: s1411 and S1412.
S1411, performing range classification on the number of the abnormal detection blocks contained in the abnormal position according to the abnormal classification rule to obtain a corresponding abnormal range grade.
The number of abnormality detection blocks included in the abnormal position may be classified into a plurality of ranges, each range corresponding to one range class, for example, a small range of 1, a local range of 2, 3, a large range of 4, and a plus infinity, according to an abnormality classification rule. A range classification section in which the number of the abnormality detection blocks matches may be judged, so that a range class corresponding to the range classification section is acquired and determined as an abnormality range class corresponding to the abnormality position.
And S1412, classifying the airflow detection value of each detection subassembly in the abnormal detection information according to the abnormal classification rule to obtain a corresponding abnormal flow rate grade.
The air flow detection value of each detection subassembly in the abnormal detection information can be classified according to an abnormal classification rule, specifically, the abnormal classification rule further comprises a plurality of air flow classification sections, each air flow classification section corresponds to one air flow grade, for example, the air flow detection average value of each detection subassembly in the abnormal detection information can be obtained, and one air flow classification section matched with the air flow detection average value is judged, so that the air flow grade corresponding to the air flow classification section is obtained and determined as the abnormal air flow grade corresponding to the abnormal detection information.
And S1420, generating safety guarantee alarm information corresponding to the abnormal level according to the abnormal position.
And generating safety guarantee alarm information corresponding to the abnormal level according to the abnormal position, and feeding back the generated safety guarantee alarm information to the user through the information processing terminal, wherein the safety guarantee alarm information received by the user at the moment contains the abnormal position and the abnormal level, and the user can adopt safety measures corresponding to the abnormal level in the area corresponding to the abnormal position in the hydrogen storage tank according to the safety guarantee alarm information, such as leakage stoppage, purging and the like.
And S150, generating corresponding safety guarantee alarm information according to the abnormal position.
The corresponding safety guarantee alarm information can be generated according to the abnormal position, the generated safety guarantee alarm information can be fed back to the user through the information processing terminal, the user can receive the safety guarantee alarm information containing the abnormal position at the moment, and the user can take safety measure guarantee in the hydrogen storage tank in the area corresponding to the abnormal position according to the safety guarantee alarm information.
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 airflow detection information obtained by the airflow detection component in real time 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, and corresponding safety guarantee alarm information is generated according to the abnormal position. By the method, whether the abnormal detection information is contained or not can be judged through the airflow detection information under the condition that the pressure value meets the warning condition, the abnormal position is obtained when the abnormal detection information is contained, the safety guarantee warning information is generated, the specific position where the hydrogen storage tank leaks can be quickly and accurately obtained, and therefore safety measures can be taken more pertinently according to the safety guarantee warning information.
The embodiment of the invention also provides a safety guarantee alarm system for liquid hydrogen storage, and an information processing terminal in the safety guarantee alarm system for liquid hydrogen storage is used for executing any embodiment of the safety guarantee alarm method for liquid hydrogen storage. Specifically, referring to fig. 10, fig. 10 is a schematic block diagram of a safety guarantee alarm system for liquid hydrogen storage according to an embodiment of the present invention.
As shown in fig. 10, the safety insurance alarm system 100 for liquid hydrogen storage includes a pressure sensor 21 disposed inside a hydrogen storage tank 10, an airflow detection module 22 disposed outside the hydrogen storage tank 10, and an information processing terminal 20 electrically connected to the pressure sensor 21 and the airflow detection module 22 at the same time, wherein the airflow detection module 22 includes a plurality of detection subassemblies 221 disposed at different positions of the hydrogen storage tank 10. The information processing terminal 20 includes: a pressure value judgment unit 210, an airflow detection information acquisition unit 220, an airflow detection information judgment unit 230, and a safety guarantee alarm information generation unit 250.
The pressure value judging unit 210 is configured to obtain a pressure value obtained by detecting the hydrogen storage tank 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 220, 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 230 is configured to determine whether the airflow detection information includes abnormal detection information.
An abnormal position obtaining unit 240, configured to, if the airflow detection information includes abnormal detection information, obtain an abnormal position corresponding to the abnormal detection information according to a preset component information table.
And a safety guarantee alarm information generating unit 250, configured to generate corresponding safety guarantee alarm information according to the abnormal position.
The safety guarantee alarm system for liquid hydrogen storage provided by the embodiment of the invention applies the safety guarantee alarm method for liquid hydrogen storage, obtains the pressure value detected by the pressure sensor in real time and judges whether the alarm condition is met, if the alarm condition is met, obtains the airflow detection information obtained by the airflow detection component in real time, judges whether the airflow detection information contains abnormal detection information, if the airflow detection information contains abnormal detection information, obtains the abnormal position corresponding to the abnormal detection information according to the component information table, and generates corresponding safety guarantee alarm information according to the abnormal position. By the method, whether the abnormal detection information is contained or not can be judged through the airflow detection information under the condition that the pressure value meets the warning condition, the abnormal position is obtained when the abnormal detection information is contained, the safety guarantee warning information is generated, the specific position where the hydrogen storage tank leaks can be quickly and accurately obtained, and therefore safety measures can be taken more pertinently according to the safety guarantee warning information.
The information processing terminal in the above-described safety assurance alarm system for liquid hydrogen storage may be implemented in the form of a computer program that can be run on a computer device as shown in fig. 11.
Referring to fig. 11, fig. 11 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 for performing a safety assurance alarm method for liquid hydrogen storage to perform safety assurance monitoring of the hydrogen storage tank.
Referring to fig. 11, 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 safety assurance alarm method for liquid hydrogen storage, 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, and when the computer program 5032 is executed by the processor 502, the processor 502 may be enabled to execute a safety guarantee alarm method for liquid hydrogen storage.
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. 11 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.
The processor 502 is configured to run the computer program 5032 stored in the memory to implement the corresponding functions in the safety guarantee alarm method for storing liquid hydrogen.
Those skilled in the art will appreciate that the embodiment of a computer device illustrated in fig. 11 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. 11, 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 included in the above-described method for security assurance alarm for liquid hydrogen storage.
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 elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the 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: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk.
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. The safety guarantee alarm method for liquid hydrogen storage is applied to an information processing terminal, the information processing terminal is used for carrying out safety guarantee monitoring on a hydrogen storage tank, and the method comprises the following steps:
acquiring a pressure value obtained by a pressure sensor for detecting the hydrogen storage tank 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 subassemblies which are arranged at different positions of the hydrogen storage tank;
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;
and generating corresponding safety guarantee alarm information according to the abnormal position.
2. The safety guarantee alarm method for liquid hydrogen storage according to claim 1, wherein the alert condition comprises an alert pressure value, and the determining whether the pressure value satisfies a preset alert condition comprises:
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. The safety guarantee alarm method for liquid hydrogen storage according to claim 1, wherein the alarm conditions include an alarm time period and a decreasing threshold, and the determining whether the pressure value satisfies a preset alarm 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. The safety guarantee alarm method for liquid hydrogen storage according to 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. The safety guarantee alarm method for liquid hydrogen storage according to claim 1, wherein the acquiring of the abnormal position corresponding to the abnormal 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. The safety guarantee alarm method for liquid hydrogen storage according to claim 1, wherein after acquiring the abnormal position corresponding to the abnormal detection information according to a preset component information table, the method further comprises:
classifying the anomaly detection information and the anomaly position according to a preset anomaly classification rule to obtain a corresponding anomaly grade;
and generating safety guarantee alarm information corresponding to the abnormal grade according to the abnormal position.
7. The safety guarantee warning method for liquid hydrogen storage according to claim 6, wherein the abnormality levels include an abnormality range level and an abnormality flow rate level, and the classifying the abnormality detection information and the abnormality position according to a preset abnormality classification rule to obtain a corresponding abnormality level comprises:
performing range classification on the number of the abnormal detection blocks contained in the abnormal position according to the abnormal classification rule to obtain a corresponding abnormal range grade;
and classifying the flow rate of the airflow detection value of each detection subassembly in the abnormal detection information according to the abnormal classification rule to obtain a corresponding abnormal flow rate grade.
8. A safety guarantee alarm system for liquid hydrogen storage is characterized by comprising a pressure sensor arranged in a hydrogen storage tank, an airflow detection assembly arranged outside the hydrogen storage tank, and an information processing terminal electrically connected with the pressure sensor and the airflow detection assembly at the same time, wherein the airflow detection assembly comprises a plurality of detection subassemblies arranged at different positions of the hydrogen storage tank;
the information processing terminal includes:
the pressure value judging unit is used for acquiring a pressure value obtained by detecting the hydrogen storage tank 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;
and the safety guarantee alarm information generating unit is used for generating corresponding safety guarantee alarm information according to the abnormal position.
9. A safety security alarm system for liquid hydrogen storage, said system comprising a pressure sensor disposed inside a hydrogen storage tank, an airflow detection assembly disposed outside said hydrogen storage tank, and an information processing terminal electrically connected to said pressure sensor and said airflow detection assembly at the same time, said information processing terminal comprising a memory, a processor, and a computer program stored in said memory and operable on said processor, characterized in that said processor implements the safety security alarm method for liquid hydrogen storage according to any one of claims 1 to 7 when executing said computer program.
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 of safety assurance alarming for liquid hydrogen storage of any one of claims 1 to 7.
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