CN116735388A - System and method for testing anti-explosion performance of hydrogen explosion anti-explosion material - Google Patents

System and method for testing anti-explosion performance of hydrogen explosion anti-explosion material Download PDF

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Publication number
CN116735388A
CN116735388A CN202311021079.1A CN202311021079A CN116735388A CN 116735388 A CN116735388 A CN 116735388A CN 202311021079 A CN202311021079 A CN 202311021079A CN 116735388 A CN116735388 A CN 116735388A
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China
Prior art keywords
explosion
antiknock
hydrogen
stage pressure
stage
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CN202311021079.1A
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CN116735388B (en
Inventor
刘明昊
解辉
张震
李士军
赵连鹏
郝加封
严艾彤
于颖
左广巍
黄磊
樊亚丁
邢程前
吴俊哲
边治上
李景鹏
吴鹏
陈菁瑶
海跃
王天垚
周稚仪
李安琪
肖海亮
郭秀杰
张弛
郭万永
邓倩
李英贤
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Aerospace Hydrogen Energy Technology Co ltd
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Aerospace Hydrogen Energy Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/313Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by explosives
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0052Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to impact
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/14Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force of explosions; for measuring the energy of projectiles
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/32Hydrogen storage

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention provides an antiknock performance test system and method for a hydrogen explosion antiknock material. The antiknock performance test system comprises an antiknock bin, a support tool and a test device; the support fixture is provided with a fixing device for fixing the anti-explosion material, and the support fixture is provided with an opening for closing the anti-explosion bin after the anti-explosion material is fixed on the support fixture so as to form a containing chamber for containing the hydrogen storage device. The test device comprises: the front-stage pressure sensor is arranged on one side of the antiknock material facing the accommodating cavity and is used for measuring the front-stage pressure of the antiknock material when the hydrogen storage device explodes; the rear-stage pressure sensor is arranged on one side of the antiknock material, which is opposite to the accommodating cavity, and is used for measuring the rear-stage pressure of the antiknock material when the hydrogen storage device explodes; and a determining unit configured to receive the pre-stage pressure and the post-stage pressure, and determine antiknock performance of the antiknock material according to the pre-stage pressure and the post-stage pressure.

Description

System and method for testing anti-explosion performance of hydrogen explosion anti-explosion material
Technical Field
The invention belongs to the technical field of hydrogen energy utilization equipment, and particularly relates to an antiknock performance test system and method for a hydrogen explosion antiknock material.
Background
In a two-carbon context, hydrogen energy is becoming an efficient, clean secondary energy source, and its use is becoming increasingly interesting.
However, the protection of hydrogen explosion is the focus of current research due to the wider explosion limit of hydrogen. The anti-explosion material can effectively resist shock waves when hydrogen is exploded, and the proportion of casualties after the anti-explosion material is hung in a hydrogen application scene can be reduced.
With the large-scale utilization of hydrogen energy, hydrogen explosion safety is a topic of increasing attention, and research and development of hydrogen anti-explosion materials are also more apparent, but the research and development of hydrogen anti-explosion materials in the market are less at present, and a unified system scheme for testing the performance of the anti-explosion materials is not available.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to solve the technical problems of at least overcoming the defects of the prior art, provides an anti-explosion performance test system of a hydrogen explosion anti-explosion material, aims to build the anti-explosion performance test system of the anti-explosion material by constructing a scene simulating hydrogen explosion, promotes the continuous and deep research of the hydrogen explosion anti-explosion material, and provides a powerful support for the technical research of the hydrogen explosion anti-explosion material.
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that:
the system for testing the anti-explosion performance of the hydrogen explosion anti-explosion material comprises an anti-explosion bin, a supporting tool and a testing device;
the support tool is provided with a fixing device for fixing the anti-explosion material, and the opening of the anti-explosion bin is closed after the anti-explosion material is fixed on the support tool so as to form a containing chamber for containing the hydrogen storage device;
wherein, the testing arrangement includes:
the front-stage pressure sensor is arranged on one side of the antiknock material facing the accommodating cavity and is used for measuring the front-stage pressure of the antiknock material when the hydrogen storage device explodes;
the rear-stage pressure sensor is arranged on one side of the antiknock material, which is opposite to the accommodating cavity, and is used for measuring the rear-stage pressure of the antiknock material when the hydrogen storage device explodes; and
and a determining unit configured to receive the pre-stage pressure and the post-stage pressure, and determine antiknock performance of the antiknock material according to the pre-stage pressure and the post-stage pressure.
In some embodiments, the test device in the blast resistance test system of the hydrogen blast resistant material further comprises:
the video acquisition unit is arranged in the accommodating cavity and is configured to acquire the morphological change of the antiknock material when the explosion of the hydrogen storage device occurs;
wherein the determining unit is further configured to receive the morphological change and determine an antiknock property of the antiknock material from the morphological change.
In some embodiments, the support tool is provided with a pre-stage pressure sensor bracket and a post-stage pressure sensor bracket for fixing the pre-stage pressure sensor and the post-stage pressure sensor;
the front-stage pressure sensor support comprises a plurality of front-stage support rods and a front-stage support seat, wherein the plurality of front-stage support rods are distributed in a radial mode, one ends of the plurality of front-stage support rods are fixedly connected with the support tool respectively, the other ends of the plurality of front-stage support rods are connected with the front-stage support seat in a converging mode, and the front-stage pressure sensor is arranged on the front-stage support seat;
the back level pressure sensor support comprises a plurality of back level support rods and a back level support, wherein the back level support rods are distributed in a radial mode, one ends of the back level support rods are fixedly connected with the support tool respectively, the other ends of the back level support rods are connected with the back level support in a converging mode, and the back level pressure sensor is installed on the back level support.
In some embodiments, the securing means comprises a plurality of fastening connectors;
after the antiknock material is placed on the support tool, the antiknock material is fixed on the support tool through the fastening connectors.
In some embodiments, the blast resistance test system of the hydrogen blast resistant material further comprises:
and the hydrogen supply device is connected with the hydrogen storage and is used for supplying hydrogen into the hydrogen storage so as to enable the hydrogen storage to explode after reaching the highest working pressure.
In some embodiments, the hydrogen supply device includes:
the hydrogen source packaging lattice is connected with the hydrogen storage and used for providing a test gas source;
a gas-driven pump for pressurizing the gas delivered in the hydrogen reservoir; and
the air pressure sensor is arranged at the air inlet of the hydrogen storage and is used for measuring the pressure of hydrogen in the hydrogen storage from air inlet to explosion.
In some embodiments, the explosion proof bin is a pit;
wherein, support the frock through rag bolt fixed in the pit.
In some embodiments, the explosion proof compartment is an explosion proof house;
the support tool is fixed to the explosion-proof house through a fastening bolt.
In some embodiments, the blast resistant material is a soft aramid blast resistant material.
The invention also provides a testing method suitable for the anti-explosion performance testing system of the hydrogen explosion anti-explosion material, which comprises the following steps:
receiving a front-stage pressure and a rear-stage pressure of an antiknock material when the hydrogen storage device explodes; and
and determining the antiknock performance of the antiknock material according to the front stage pressure and the rear stage pressure.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects.
1. According to the invention, by constructing a scene simulating hydrogen explosion, an antiknock performance test system of the antiknock material is built, so that the continuous and deep research of the hydrogen explosion antiknock material is promoted, and a powerful support is provided for the technical research of the hydrogen explosion antiknock material.
2. According to the system for testing the anti-explosion performance of the hydrogen explosion anti-explosion material, the front-stage pressure sensor and the rear-stage pressure sensor are respectively arranged on the front side and the rear side of the anti-explosion material and are used for measuring the front-stage pressure and the rear-stage pressure of the anti-explosion material when the hydrogen storage device explodes, and the anti-explosion effect of the anti-explosion material on shock waves generated by the hydrogen explosion is determined according to the front-stage pressure and the rear-stage pressure, so that the quality of the anti-explosion performance of the anti-explosion material is determined.
3. According to the system for testing the anti-explosion performance of the hydrogen explosion anti-explosion material, provided by the invention, the video acquisition unit is arranged, so that the morphological change of the anti-explosion material when the explosion of the hydrogen storage device occurs can be acquired, and a data basis is provided for further analysis of the anti-explosion performance of the anti-explosion material.
4. According to the anti-explosion performance testing system for the hydrogen explosion anti-explosion material, provided by the invention, the anti-explosion performance of the hydrogen explosion anti-explosion material can be repeatedly tested by arranging the fixing device for detachably fixing the anti-explosion material on the supporting tool.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
fig. 1 is a schematic structural view of an antiknock performance test system for a hydrogen explosion antiknock material according to an exemplary embodiment of the present invention;
fig. 2 is a schematic structural view of a support tool according to an exemplary embodiment of the present invention;
FIG. 3 is a front view of a support tooling provided in accordance with an exemplary embodiment of the present invention;
FIG. 4 is an architecture suitable for implementing a method of testing the antiknock performance of a hydrogen gas explosion antiknock material provided in accordance with an exemplary embodiment of the present invention;
fig. 5 is a flow chart of a method for testing the anti-explosion performance of a hydrogen explosion anti-explosion material according to an exemplary embodiment of the present invention.
In the figure: 100. an antiknock performance test system;
10. an explosion-proof bin; 11. an anchor bolt; 12. a hydrogen reservoir; 13. a housing chamber;
20. supporting the tool; 21. a backing pressure sensor support; 211. a front stage support rod; 212. a front stage support; 22. a rear stage pressure sensor support; 221. a rear stage support rod; 222. a rear stage support; 23. angle iron; 24. fastening the connecting piece;
30. a testing device; 31. a pre-stage pressure sensor; 32. a post-stage pressure sensor; 33. a video acquisition unit;
40. an antiknock material;
50. a hydrogen supply device; 51. a hydrogen source packaging lattice; 52. a gas-driven pump; 53. an air pressure sensor;
200. a framework; 210. an electronic device; 220. a sensor system.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Fig. 1 illustrates a structure of an antiknock performance test system 100 of a hydrogen gas explosion antiknock material 40 provided according to an exemplary embodiment of the present invention.
As shown in fig. 1, the antiknock performance test system 100 includes an antiknock chamber 10, a support fixture 20, and a test device 30. The support fixture 20 is provided with a fixing device for fixing the antiknock material 40, and the opening of the antiknock chamber 10 is closed after the antiknock material 40 is fixed on the support fixture 20, so as to form a containing chamber 13 for containing the hydrogen storage 12. The test device 30 includes a pre-stage pressure sensor 31, a post-stage pressure sensor 32, and a determination unit (not shown). A pre-stage pressure sensor 31 is provided at a side of the antiknock material 40 facing the accommodating chamber 13 for measuring a pre-stage pressure of the antiknock material 40 when the hydrogen gas reservoir 12 explodes. A rear-stage pressure sensor 32 is provided on a side of the antiknock material 40 facing away from the accommodating chamber 13 for measuring a rear-stage pressure of the antiknock material 40 when the hydrogen gas reservoir 12 explodes. The determining unit is configured to receive the pre-stage pressure and the post-stage pressure and determine an antiknock property of the antiknock material 40 based on the pre-stage pressure and the post-stage pressure.
In the above-mentioned scheme, after the antiknock material 40 is fixed on the support tooling 20, the opening of the antiknock bin 10 is closed, so as to form the accommodating chamber 13 for accommodating the hydrogen storage 12, and the accommodating chamber is used for simulating the scene of hydrogen explosion. The front-stage pressure sensor 31 and the rear-stage pressure sensor 32 are respectively disposed at the front side and the rear side of the antiknock material 40, and are used for measuring the front-stage pressure and the rear-stage pressure of the antiknock material 40 when the hydrogen storage 12 explodes, and determining the resistance effect of the antiknock material 40 to the shock wave generated by the hydrogen explosion according to the front-stage pressure and the rear-stage pressure, thereby determining the antiknock performance of the antiknock material 40.
It should be noted that the pre-stage pressure sensor 31 and the post-stage pressure sensor 32 transmit the detected data to the determining unit through signal lines, and the determining unit is disposed at a safe position far from the explosion-proof chamber 10, so that the impact wave generated by the explosion of hydrogen gas is prevented from affecting the normal operation of the determining unit.
It will be appreciated that both the pre-stage pressure sensor 31 and the post-stage pressure sensor 32 employ explosion-proof type pressure sensors, ensuring that the determination unit is able to collect the pre-stage pressure and the post-stage pressure of the antiknock material 40 upon explosion of the hydrogen gas storage 12.
In some embodiments, the testing device 30 further comprises a video acquisition unit 33, the video acquisition unit 33 being disposed within the receiving chamber 13, the video acquisition unit 33 being configured to acquire a morphological change of the antiknock material 40 when an explosion of the hydrogen gas storage 12 occurs. The determining unit is further configured to receive the morphological change and determine an antiknock property of the antiknock material 40 from the morphological change. As an example, the video acquisition unit 33 employs an explosion-proof camera, ensuring that the determination unit is able to acquire a morphological change of the antiknock material 40 upon explosion of the hydrogen gas reservoir 12.
By way of example, the hydrogen gas reservoir 12 includes, but is not limited to, a hydrogen gas tank, a hydrogen cylinder, or the like. The containers such as the hydrogen storage tank and the hydrogen cylinder have the maximum working pressure, and when the hydrogen pressure in the containers such as the hydrogen storage tank and the hydrogen cylinder exceeds the maximum working pressure, the hydrogen explosion occurs.
In some embodiments, the support fixture 20 is provided with a front stage pressure sensor bracket 21 and a rear stage pressure sensor bracket 22 for fixing the front stage pressure sensor 31 and the rear stage pressure sensor 32, so as to fix the front stage pressure sensor 31 and the rear stage pressure sensor 32.
The backing pressure sensor support 21 comprises a plurality of backing support rods 211 and backing supports 212, the backing support rods 211 are distributed radially, one ends of the backing support rods 211 are respectively fixedly connected with the support tool 20, the other ends of the backing support rods are connected with the backing supports 212 in a converging mode, and the backing pressure sensor 31 is mounted on the backing supports 212.
The rear-stage pressure sensor support 22 comprises a plurality of rear-stage support rods 221 and rear-stage supports 222, the rear-stage support rods 221 are distributed radially, one ends of the rear-stage support rods 221 are respectively fixedly connected with the support tool 20, the other ends of the rear-stage support rods are connected with the rear-stage supports 222 in a converging manner, and the rear-stage pressure sensor 32 is mounted on the rear-stage supports 222.
As an example, as shown in fig. 2, the support fixture 20 is welded by a plurality of angle irons 23. The shape of the supporting tool 20 is matched with the shape of the explosion-proof bin 10. Optionally, the supporting tool 20 includes four angle irons 23, and the four angle irons 23 are welded and fixed in sequence two by two, so as to form a quadrilateral structure. The front-stage pressure sensor support 21 comprises eight front-stage support rods 211, one ends of the eight front-stage support rods 211 are respectively welded and connected with four angle irons 23 of the support tool 20, and one ends of the eight front-stage support rods 211 are obliquely converged and connected to the front-stage support 212 to form an umbrella-like structure. The rear-stage pressure sensor support 22 comprises eight rear-stage support rods 221, one ends of the eight rear-stage support rods 221 are respectively welded and connected with the four angle irons 23 of the support tool 20, and one ends of the eight rear-stage support rods 221 are obliquely converged and connected to the rear-stage support 222 to form an umbrella-like structure.
A pre-stage pressure sensor 31 is mounted on the pre-stage support 212 and a post-stage pressure sensor 32 is mounted on the post-stage support 222.
In some embodiments, as shown in fig. 2 and 3, the securing device includes a plurality of fastening connectors 24. After placement of the blast resistant material 40 over the support tooling 20, the blast resistant material 40 is secured to the support tooling 20 by the plurality of fastening connectors 24.
As an example, the fastening connection 24 includes a bolt and a nut. A plurality of bolt holes are formed in the angle irons 23 of the supporting tool 20, and corresponding to the bolt holes, the same number of through holes are formed in the corresponding positions of the antiknock material 40. After the antiknock material 40 is placed on the supporting tool 20, bolts are inserted through the bolt holes and the through holes, and then the bolts and the through holes are fastened and connected by nuts.
In some embodiments, the blast resistant material 40 is a soft aramid blast resistant material. The antiknock material 40 is made of aramid cloth, and the aramid cloth is made into the antiknock material 40 through the procedures of interweaving, gluing, compacting and the like, has good shock wave resistance and can effectively prevent injury caused by hydrogen explosion.
In the above scheme, the antiknock material 40 is combined with the supporting tool 20 and is fixed at the opening of the explosion-proof bin 10, so that the antiknock material can receive the shock wave more stably and the antiknock performance of the antiknock material 40 can be tested better.
In some embodiments, the explosion proof compartment 10 is a pit; the support fixture 20 is fixed to the pit by anchor bolts 11 to form a receiving chamber 13 for receiving the hydrogen gas reservoir 12. It is understood that the length, width, height and other dimensions of the pit can be set according to the actual situation, and the invention is not limited thereto.
As an example, a reinforced concrete pier may be formed in the pit, and then the anchor bolts 11 are used to fixedly connect the support fixture 20 to the reinforced concrete pier.
In other embodiments, the explosion proof cabin 10 is an explosion proof room surrounded by explosion proof walls; the support fixture 20 is fixed to the top of the explosion-proof room by fastening bolts to form a receiving chamber 13 for receiving the hydrogen gas reservoir 12. It is understood that the length, width, height and other dimensions of the explosion-proof house can be set according to the actual situation, and the invention is not limited to this. In addition, the blast wall herein refers to a wall having a blast resistance and capable of limiting the destructive effect of an explosion to a certain extent. The blast wall can be, for example, a reinforced concrete blast wall, a steel blast wall, a section steel blast wall, a brick blast wall, a flame-retardant blast wall, etc.
In addition, the front stage pressure sensor bracket 21 and the rear stage pressure sensor bracket 22 for fixing the front stage pressure sensor 31 and the rear stage pressure sensor 32 are provided on the support tool 20, and therefore, the front stage pressure sensor 31 and the rear stage pressure sensor 32 can be mounted together in place when the support tool 20 is connected with the explosion proof chamber 10, simplifying the mounting process of the explosion proof performance test system 100.
It is to be noted that the mounting position of the hydrogen gas reservoir 12 in the accommodating chamber 13 may be changed according to actual conditions, so that the antiknock performance of the antiknock material 40 for different explosion points can be tested.
In some embodiments, the antiknock performance test system 100 further includes a hydrogen supply 50, where the hydrogen supply 50 is connected to the hydrogen storage 12 and configured to supply hydrogen to the hydrogen storage 12 to cause the hydrogen storage 12 to explode after reaching a maximum operating pressure.
As an example, the hydrogen supply device 50 includes a hydrogen source container 51, a gas drive pump 52, and a gas pressure sensor 53. The hydrogen source compartment 51 is connected to the hydrogen reservoir 12 by a conduit for providing a test gas source. A gas driven pump 52 is provided on the pipe for pressurizing the gas delivered in the hydrogen reservoir 12. The air pressure sensor 53 is disposed at an air inlet of the hydrogen gas reservoir 12, and is configured to measure the pressure of hydrogen gas in the hydrogen gas reservoir 12 from the time of the explosion up to the time of the intake air.
It should be noted that the hydrogen supply device 50 should be disposed at a safe position far from the explosion-proof chamber 10 as much as possible, so as to avoid the shock wave generated by the explosion of hydrogen from damaging the hydrogen supply device 50.
The following describes the flow of the arrangement of the anti-explosion performance test system 100 of the hydrogen explosion-proof material 40 taking the explosion-proof chamber 10 as a pit as an example.
The support tool 20 and the antiknock material 40 are first fixed by the fastening connector 24, and the front stage pressure sensor 31 and the rear stage pressure sensor 32 are respectively mounted on the front stage support 212 and the rear stage support 222. The video capture unit 33, the hydrogen gas reservoir 12, etc. are then placed in the pit, and the hydrogen gas reservoir 12 is connected to an air intake pipe which is connected to a hydrogen gas supply device 50 outside the pit.
Then the support tool 20 is fixed on the top of the pit through the foundation bolts 11, so that the moment of explosion is guaranteed, and the antiknock material 40 can completely bear explosion shock waves without flying out.
Finally, the front stage pressure sensor 31, the rear stage pressure sensor 32, the video acquisition unit 33, and the air pressure sensor 53 are connected to a determination unit disposed at a remote safety location through signal lines.
The exemplary embodiment of the present invention also provides a test method suitable for the antiknock performance test system 100 according to the above-described hydrogen explosion antiknock material 40.
Fig. 4 illustrates one architecture 200 suitable for implementing the method of testing the blast performance of the hydrogen blast resistant material 40 provided in accordance with an exemplary embodiment of the present invention.
As shown in fig. 4, architecture 200 includes an electronic device 210 and a sensor system 220. The electronic device 210 is configured to collect the pre-stage pressure and the post-stage pressure of the antiknock material 40 upon explosion of the hydrogen gas storage 12, and determine the quality of antiknock performance of the antiknock material 40 based on the collected pre-stage pressure and post-stage pressure. The electronic device 210 is, for example, a determination unit in the antiknock performance test system 100 described above. The sensor system 220 includes a pre-stage pressure sensor 31 and a post-stage pressure sensor 32 for measuring the pre-stage pressure and the post-stage pressure of the antiknock material 40 upon explosion of the hydrogen gas storage 12. The details of the pre-stage pressure sensor 31 and the post-stage pressure sensor 32 may be referred to the description of the explosion-proof performance test system 100, and the present invention will not be repeated here.
Fig. 5 shows a flow chart of an antiknock performance test method 300 for a hydrogen gas explosion antiknock material 40 provided according to an exemplary embodiment of the present invention.
As shown in fig. 5, the execution of the antiknock performance test method 300 includes the steps of:
s310, receiving the front-stage pressure and the rear-stage pressure of the antiknock material when the hydrogen storage device explodes; and
s320, determining the antiknock performance of the antiknock material according to the front stage pressure and the rear stage pressure.
Specifically, after the test is started, the manual valve of the gas drive pump 52 of the hydrogen supply device 50 is opened to inflate the hydrogen storage 12, the condition in the pit is observed by the video acquisition unit 33, and the pressure change of the hydrogen storage 12 is observed by the pressure signal acquired by the pressure sensor 53. After the pressure of the hydrogen storage 12 in the pit exceeds the highest working pressure, the hydrogen storage 12 explodes, and the electronic device 210 respectively collects the front-stage pressure and the rear-stage pressure of the antiknock material 40 when the hydrogen storage 12 explodes by using the front-stage pressure sensor 31 and the rear-stage pressure sensor 32, and determines the resistance effect of the antiknock material 40 to the shock wave generated by the hydrogen explosion according to the front-stage pressure and the rear-stage pressure, thereby determining the quality of the antiknock performance of the antiknock material 40.
As an example, in S310, the electronic device 210 receives the hydrogen gas reservoir 12 pre-stage pressure P of blast resistant material 40 upon detonation Front part And the post-stage pressure P Rear part (S) The method comprises the steps of carrying out a first treatment on the surface of the In step S320, the pressure decay ratio R outside the antiknock material 40 at the time of hydrogen explosion generation is calculated according to the formula shown in the following formula (1):
R=(P front part -P Rear part (S) )/P Front part
The electronic device 210 determines the resistance effect of the antiknock material 40 to the shock wave generated by the hydrogen explosion according to the pressure decay ratio R of the outside of the antiknock material 40, thereby determining the antiknock performance of the antiknock material 40.
Specifically, the electronic device 210 stores a plurality of ratio thresholds in advance, and determines whether the antiknock performance of the antiknock material 40 is good or bad according to the relationship between the pressure decay ratio R and the ratio threshold.
In some embodiments, the quality of the antiknock performance of antiknock material 40 may be divided into a number of levels according to the number of pre-set ratio thresholds.
As an example, the first proportional threshold R1, the second proportional threshold R2, and the third proportional threshold R3 are stored in advance in the electronic device 210. The magnitude relation of R1, R2 and R3 is a relation which increases in sequence. Then, when the pressure decay ratio R calculated by the electronic device 210 in step S320 satisfies the relationship of the following formula (2), it is determined that the antiknock performance of the antiknock material 40 is class I.
0<R≤R1 ②
When the pressure decay ratio R calculated by the electronic device 210 satisfies the relationship of the following formula (3), it is determined that the antiknock performance of the antiknock material 40 is class II.
R1<R≤R2 ③
When the pressure decay ratio R calculated by the electronic device 210 satisfies the relationship of the following formula (4), it is determined that the antiknock performance of the antiknock material 40 is class III.
R2<R≤R3 ④
When the pressure decay ratio R calculated by the electronic device 210 satisfies the relationship of the following formula (5), it is determined that the antiknock performance of the antiknock material 40 is class IV.
R3<R ⑤
It will be appreciated that the number of the anti-knock performance grades of the anti-knock material 40 may be increased or decreased based on the above examples, and the present invention will not be repeated here.
In some embodiments, an electronic device 210 is also connected to the video capture unit 33 to capture a morphological change of the antiknock material 40 when an explosion of the hydrogen gas storage 12 occurs. The electronic device 210 determines the antiknock properties of the antiknock material 40 based on the morphological changes.
The system and the method for testing the antiknock performance of the hydrogen explosion antiknock material can accurately reproduce the actual conditions of hydrogen storage and utilization on site, can repeatedly test the performance of the hydrogen antiknock material, can realize remote test and monitoring, have high safety, and can be widely used in the actual test. And guidance can be given to performance tests of various subsequently newly developed antiknock materials.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present invention without departing from the scope of the invention.

Claims (10)

1. The system for testing the antiknock performance of the hydrogen explosion antiknock material is characterized by comprising an explosion-proof bin, a supporting tool and a testing device;
the support tool is provided with a fixing device for fixing the anti-explosion material, and the opening of the anti-explosion bin is closed after the anti-explosion material is fixed on the support tool so as to form a containing chamber for containing the hydrogen storage device;
wherein, the testing arrangement includes:
the front-stage pressure sensor is arranged on one side of the antiknock material facing the accommodating cavity and is used for measuring the front-stage pressure of the antiknock material when the hydrogen storage device explodes;
the rear-stage pressure sensor is arranged on one side of the antiknock material, which is opposite to the accommodating cavity, and is used for measuring the rear-stage pressure of the antiknock material when the hydrogen storage device explodes; and
and a determining unit configured to receive the pre-stage pressure and the post-stage pressure, and determine antiknock performance of the antiknock material according to the pre-stage pressure and the post-stage pressure.
2. The hydrogen explosion-proof performance testing system of the hydrogen explosion-proof material according to claim 1, wherein the testing device further comprises:
the video acquisition unit is arranged in the accommodating cavity and is configured to acquire the morphological change of the antiknock material when the explosion of the hydrogen storage device occurs;
wherein the determining unit is further configured to receive the morphological change and determine an antiknock property of the antiknock material from the morphological change.
3. The hydrogen explosion-proof material explosion-proof performance test system according to claim 1, wherein,
the support tool is provided with a front-stage pressure sensor bracket and a rear-stage pressure sensor bracket for fixing the front-stage pressure sensor and the rear-stage pressure sensor;
the front-stage pressure sensor support comprises a plurality of front-stage support rods and a front-stage support seat, wherein the plurality of front-stage support rods are distributed in a radial mode, one ends of the plurality of front-stage support rods are fixedly connected with the support tool respectively, the other ends of the plurality of front-stage support rods are connected with the front-stage support seat in a converging mode, and the front-stage pressure sensor is arranged on the front-stage support seat;
the back level pressure sensor support comprises a plurality of back level support rods and a back level support, wherein the back level support rods are distributed in a radial mode, one ends of the back level support rods are fixedly connected with the support tool respectively, the other ends of the back level support rods are connected with the back level support in a converging mode, and the back level pressure sensor is installed on the back level support.
4. A hydrogen explosion-proof material antiknock performance test system according to any one of claims 1 to 3,
the fixing device comprises a plurality of fastening connectors;
after the antiknock material is placed on the support tool, the antiknock material is fixed on the support tool through the fastening connectors.
5. The hydrogen explosion-proof material antiknock performance test system according to any one of claims 1 to 3, further comprising:
and the hydrogen supply device is connected with the hydrogen storage and is used for supplying hydrogen into the hydrogen storage so as to enable the hydrogen storage to explode after reaching the highest working pressure.
6. The hydrogen explosion-proof material explosion-proof performance testing system according to claim 5, wherein,
the hydrogen supply device includes:
the hydrogen source packaging lattice is connected with the hydrogen storage and used for providing a test gas source;
a gas-driven pump for pressurizing the gas delivered in the hydrogen reservoir; and
the air pressure sensor is arranged at the air inlet of the hydrogen storage and is used for measuring the pressure of hydrogen in the hydrogen storage from air inlet to explosion.
7. A hydrogen explosion-proof material antiknock performance test system according to any one of claims 1 to 3,
the explosion-proof bin is a pit;
wherein, support the frock through rag bolt fixed in the pit.
8. A hydrogen explosion-proof material antiknock performance test system according to any one of claims 1 to 3,
the explosion-proof bin is an explosion-proof house;
the support tool is fixed to the explosion-proof house through a fastening bolt.
9. A hydrogen explosion-proof material antiknock performance test system according to any one of claims 1 to 3,
the antiknock material is soft aramid antiknock material.
10. A test method of an antiknock performance test system suitable for a hydrogen explosion antiknock material according to any one of claims 1 to 9, comprising:
receiving a front-stage pressure and a rear-stage pressure of an antiknock material when the hydrogen storage device explodes; and
and determining the antiknock performance of the antiknock material according to the front stage pressure and the rear stage pressure.
CN202311021079.1A 2023-08-15 2023-08-15 System and method for testing anti-explosion performance of hydrogen explosion anti-explosion material Active CN116735388B (en)

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