CN113405912A - Intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing system and method - Google Patents
Intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing system and method Download PDFInfo
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- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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Abstract
本发明公开了本质安全的高纯高压氢环境材料相容性测试系统及方法，涉及材料力学性能测试装备开发技术领域，其中，本质安全的高纯高压氢环境材料相容性测试系统，包括力学性能测试模块；供气模块；排气模块；抽真空模块；以及在线监测设备，在线监测设备分别与力学性能测试模块、供气模块、排气模块以及抽真空模块电连接，以根据氢气纯度传感器的反馈信号，对气体管路进行抽真空、或吹扫、或提供氢气、或排气。上述方案，通过对测试装置进行氢气纯度检测，并将氢气纯度信息上传至在线监测设备，通过自主反馈控制气体管路的吹扫置换，实现氢气纯度的在线监测和自动吹扫置换，确保进入环境箱内的氢气纯度符合要求。
The invention discloses an intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing system and method, and relates to the technical field of material mechanical property testing equipment development. A performance test module; a gas supply module; an exhaust module; a vacuum pumping module; and an on-line monitoring device, the on-line monitoring device is respectively electrically connected with the mechanical performance testing module, the gas supply module, the exhaust module and the vacuum pumping module, so as to detect the hydrogen purity sensor according to the hydrogen purity sensor. The feedback signal of the gas pipeline is evacuated, or purged, or supplied with hydrogen, or exhausted. In the above scheme, by testing the hydrogen purity of the test device, uploading the hydrogen purity information to the online monitoring equipment, and controlling the purging and replacement of the gas pipeline through independent feedback, the online monitoring and automatic purging and replacement of the hydrogen purity are realized to ensure the entry into the environment. The purity of hydrogen in the tank meets the requirements.
Description
Technical Field
The invention relates to the technical field of material mechanical property test equipment development, in particular to an intrinsically safe high-purity high-pressure hydrogen environment material compatibility test system and an intrinsically safe high-purity high-pressure hydrogen environment material compatibility test method.
Background
The storage and transportation of hydrogen is an important link in the industrial development of hydrogen energy, and the hydrogen storage at normal temperature and high pressure is a predominant hydrogen storage mode in the current industrial application because of the advantages of simple equipment structure, high filling speed and the like. However, the bearing structure which is in service in a high-pressure hydrogen environment for a long time faces hydrogen embrittlement problems such as reduced plasticity and accelerated fatigue crack propagation rate, and the operation safety of the hydrogen energy storage and transmission system is seriously damaged. Because the environmental hydrogen test and the real working condition have the characteristics of similar environment, stress field and hydrogen concentration field, the environmental hydrogen test can reduce the dynamic invasion and segregation of hydrogen in the crack tip high stress gradient area in the high-pressure hydrogen environment, and can more truly reflect the actual service working condition of the high-pressure hydrogen environment bearing structure. Therefore, it is necessary to perform a high pressure hydrogen environment material compatibility test.
However, since the compatibility test of the high-pressure hydrogen environment material is technically supported by the compatibility test device for the high-pressure hydrogen environment material, the research and development of the device in China is still in the beginning stage. At present, the high-pressure hydrogen environment material compatibility test system mainly has the following defects:
(1) the hydrogen purity of the test atmosphere was not monitored and increased on-line.
When the compatibility of the material is tested in a high-pressure hydrogen environment, the purity of the test atmosphere in a high-pressure environment box needs to be ensured to meet the requirement (the purity of hydrogen is required to be more than or equal to 99.999 percent in a general test). Currently, hydrogen purity is increased mainly by providing a purge replacement system in the gas supply system. For example, chinese patent CN203488978U lowered the oxygen content in the system and increased the hydrogen purity by recycling vacuum and inert gas purge replacement, and provided a sampling bottle to obtain information on the hydrogen purity in the environmental chamber. Through the gas sampling bottle, it is passive detection means to obtain gas purity information, can't reach real-time feedback and automatic control's purpose, and whether can judge gas purity up to standard after still need dismantling the analysis with the sampling bottle before the test at every turn.
(2) No measures are taken to exhaust the residual gas in the discharge pipe.
The flame arrester is a safety device for preventing the flame spread of inflammable gas and inflammable liquid steam, and consists of a flame-retarding core, a casing and accessories. The flame arrestor generally requires a certain pressure to open and discharge gas when the gas pressure is higher than the opening pressure, and is a one-way structure that prevents air from flowing back into the pipeline. However, when the gas is gradually discharged and the gas pressure drops below the flame arrester opening pressure, the flame arrester is closed, and gas remains in the pipeline, which is a hazard source, and the related design consideration of the evacuation of the residual gas at the flame arrester does not exist at present.
(3) Without effecting a quantitative control of the rate of gas release
The combustion limit of the hydrogen is wide (4-75%), the minimum ignition energy of the hydrogen is low (about 0.07 mJ), and if the discharge rate of the hydrogen is too high, the heat generated by friction between the hydrogen and a pipe orifice is enough to reach the minimum ignition energy of the hydrogen. Therefore, it is necessary to control the discharge rate of hydrogen through pipeline design and instruments, for example, chinese patent CN203488978U slows down the discharge rate of hydrogen by providing a combination valve, and chinese patent CN106018119A also plays a role in slowing down the discharge rate by designing a plurality of valves. However, the above patent does not adopt a quantitative means to control the release rate, and cannot realize accurate control of the hydrogen release rate.
Therefore, it is necessary to develop an intrinsically safe system and method for testing compatibility of a high-purity high-pressure hydrogen environment material, and the system needs to be capable of evaluating compatibility of a high-pressure high-purity hydrogen environment material and ensuring safe development of a compatibility evaluation test of the high-pressure hydrogen environment material.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the embodiment of the invention provides the intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing system, which can ensure the safe development of the high-pressure hydrogen environment material compatibility evaluation test.
The embodiment of the invention also provides an intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing method.
According to an embodiment of the first aspect of the present invention, an intrinsically safe high-purity high-pressure hydrogen environment material compatibility test system is provided, which includes a mechanical property test module, wherein the mechanical property test module includes a gas pipeline and a test device installed on the gas pipeline, the gas pipeline has a gas inlet end and a gas outlet end, and the mechanical property test module is provided with a hydrogen purity sensor for detecting hydrogen purity of the gas pipeline; the gas supply module is arranged at the gas inlet end of the gas pipeline and comprises a first gas supply unit for providing hydrogen and a second gas supply unit for providing argon, the second gas supply unit is connected with the gas inlet end of the gas pipeline to purge the gas pipeline by using the argon, and the first gas supply unit is connected with the gas inlet end of the gas pipeline to provide the hydrogen for the gas pipeline; the exhaust module is arranged at the gas outlet end of the gas pipeline and comprises a flame arrester and a flame arrester bypass automatic valve which is connected with the flame arrester in parallel, and the flame arrester bypass automatic valve is used for emptying residual hydrogen of the flame arrester; the vacuumizing module comprises a vacuum pump for vacuumizing the gas pipeline and a vacuum gauge for performing vacuum detection on the gas pipeline; and the online monitoring equipment is respectively and electrically connected with the mechanical property testing module, the gas supply module, the exhaust module and the vacuumizing module so as to vacuumize, purge, provide hydrogen or exhaust the gas pipeline according to the feedback signal of the hydrogen purity sensor.
The intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing system at least has the following beneficial effects: according to the scheme, the hydrogen purity is detected by the gas pipeline where the testing device is located, the hydrogen purity information is uploaded to the online monitoring equipment, the purging replacement of the gas pipeline is controlled through autonomous feedback, online monitoring and automatic purging replacement of the hydrogen purity are achieved, the hydrogen purity entering the environment box is ensured to meet the requirement, and meanwhile, the process can be finished under the unattended condition; in addition, the flame arrester needs certain gas pressure for opening, so that partial hydrogen in a gas pipeline can be remained, and potential safety hazards exist.
According to an embodiment of the first aspect of the present invention, the gas pipeline comprises an air inlet pipeline communicated with the air supply module and an air outlet pipeline communicated with the air outlet module, the hydrogen purity sensor is installed on the air inlet pipeline, the air outlet pipeline is provided with an automatic air outlet valve and a gas flow sensor, and the online monitoring device receives a feedback signal of the gas flow sensor to control the valve opening degree of the automatic air outlet valve. Above-mentioned scheme, can automatic quantitative control gas discharge rate, accomplish high-pressure hydrogen environmental material compatibility test back, discharge high-pressure hydrogen and should pay attention to discharge rate, prevent that hydrogen discharge rate from producing great heat at the excessive speed, through design a gas flow sensor on the blast pipe way, gas flow sensor passes flow information to on-line monitoring equipment, and valve aperture through information feedback automatic control gas vent automatic valve, play the effect of automatic regulation and control hydrogen discharge rate, effectively reduce the danger of hydrogen evacuation in-process.
According to an embodiment of the first aspect of the invention, the inlet line is fitted with an inlet pressure gauge and the outlet line is fitted with an outlet pressure gauge.
According to an embodiment of the first aspect of the present invention, the intake line is further installed with an intake three-way valve, the intake three-way valve is connected with a first bypass, the other end of the first bypass is communicated with the exhaust line, the intake line is further installed with a safety valve, the safety valve is connected with a second bypass, and the other end of the second bypass is communicated with the exhaust line.
According to an embodiment of the first aspect of the present invention, the vacuum pumping module further includes a vacuum pumping pipeline, the vacuum pump and the vacuum gauge are installed on the vacuum pumping pipeline, one end of the vacuum pumping pipeline is communicated with the air inlet pipe orifice of the air inlet pipeline, and the other end of the vacuum pumping pipeline is communicated with the exhaust pipeline.
According to an embodiment of the first aspect of the invention, the evacuation line is connected to the air inlet line by a three-way valve for evacuation.
According to the embodiment of the first aspect of the invention, the first gas supply unit comprises a hydrogen gas source and a hydrogen pipeline, one end of the hydrogen pipeline is connected with the hydrogen gas source, the other end of the hydrogen pipeline is communicated with the gas inlet end of the gas pipeline, and the hydrogen pipeline is provided with a hydrogen gas source automatic valve, a fire retardant valve, a hydrogen pipeline pressure reducing valve, a hydrogen pipeline pressure sensor and a hydrogen pipeline automatic valve which are all electrically connected with the online monitoring equipment.
According to the embodiment of the first aspect of the present invention, the second gas supply unit includes an argon gas source and an argon gas pipeline, one end of the argon gas pipeline is connected to the argon gas source, the other end of the argon gas pipeline is communicated with the gas inlet end of the gas pipeline, and the argon gas pipeline is provided with an automatic argon gas source valve, an automatic argon gas pipeline pressure reducing valve, an automatic argon gas pipeline pressure sensor and an automatic argon gas pipeline valve which are all electrically connected to the online monitoring device.
According to an embodiment of the first aspect of the invention, the exhaust module comprises an evacuation pipeline communicated with an air outlet pipe opening of the exhaust pipeline, the flame arrester is installed on the evacuation pipeline, and an automatic valve at the front end of the flame arrester and an automatic valve at the rear end of the flame arrester are respectively installed at the front end and the rear end of the flame arrester.
According to an embodiment of the second aspect of the present invention, an intrinsically safe high-purity high-pressure hydrogen environmental material compatibility test method is provided, and the system for testing the intrinsically safe high-purity high-pressure hydrogen environmental material compatibility according to the embodiment of the first aspect of the present invention comprises the following steps:
s1, vacuumizing the mechanical property testing module through a vacuumizing module;
s2, after the vacuum gauge is ready to set the reading, closing the vacuumizing module;
s3, filling argon into the mechanical property testing module through the second air supply unit, then discharging the argon through the exhaust module, and vacuumizing through the vacuumizing module;
s4, filling hydrogen into the mechanical performance testing module through the first gas supply unit, then discharging the hydrogen through the exhaust module, and vacuumizing through the vacuumizing module;
s5, repeating the step S5 until the hydrogen purity sensor detects that the hydrogen concentration reaches more than 99.999 percent;
and S6, after the compatibility of the high-pressure hydrogen environment material is tested, exhausting gas through an exhaust module.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, an intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing system is shown, which comprises a gas supply module, a vacuum pumping module 30, a mechanical property testing module 40, an exhaust module 50 and an online monitoring device 61.
Wherein, mechanical properties test module 40 includes the gas pipeline and installs at the testing arrangement 41 of this gas pipeline, and the gas pipeline has the inlet end and gives vent to anger the end, and mechanical properties test module 40 is provided with the hydrogen purity sensor 42 that carries out the hydrogen purity to the gas pipeline and detect. The testing device 41 is used for testing the compatibility of the high-pressure hydrogen environment material, and the gas pipeline is connected with the testing device 41 to provide hydrogen for the testing device, so that the testing atmosphere purity in the high-pressure environment box can meet the requirement.
Specifically, the gas supply module is arranged at the gas inlet end of the gas pipeline, the gas supply module comprises a first gas supply unit 10 for providing hydrogen and a second gas supply unit 20 for providing argon, the second gas supply unit 20 is connected with the gas inlet end of the gas pipeline to purge the gas pipeline by using argon, and the first gas supply unit 10 is connected with the gas inlet end of the gas pipeline to provide hydrogen for the gas pipeline. It can be understood that the second gas supply unit 20 purges the gas pipeline with inert gas, and then fills the gas pipeline with hydrogen gas through the first gas supply unit 10, and the hydrogen purity sensor 42 can timely feed back the hydrogen purity in the gas pipeline.
Except that the second gas supply unit 20 adopts inert gas to purge the gas pipeline, a vacuum-pumping module 30 is further arranged, so that the purity of hydrogen in the gas pipeline can be further improved, and the vacuum-pumping module 30 comprises a vacuum pump 32 for vacuumizing the gas pipeline and a vacuum gauge 31 for vacuum detection of the gas pipeline.
The exhaust module 50 is arranged at the gas outlet end of the gas pipeline, the exhaust module 50 comprises a flame arrester 52 and a flame arrester bypass automatic valve 54 which is arranged in parallel with the flame arrester 52, and the flame arrester bypass automatic valve 54 is used for exhausting residual hydrogen of the flame arrester 52. It will be appreciated that the need for a certain gas pressure to open flame arrestor 52 can result in a residual amount of hydrogen in the gas line, presenting a safety hazard. In the embodiment of the invention, an evacuation bypass is designed at the flame arrester 51, and the automatic valve 54 of the flame arrester bypass is arranged at the evacuation bypass to evacuate residual hydrogen at the flame arrester 52, so that a dangerous source in a gas pipeline is eliminated, and the test system is intrinsically safe.
And the online monitoring device 61, the online monitoring device 61 is electrically connected with the mechanical property testing module 40, the gas supply module, the exhaust module 50 and the vacuumizing module 30 respectively, so as to vacuumize or purge, or provide hydrogen or exhaust the gas pipeline according to the feedback signal of the hydrogen purity sensor 42. The hydrogen purity detection is carried out through the gas pipeline where the testing device is located, hydrogen purity information is uploaded to the online monitoring equipment, purging and replacement are carried out through the autonomous feedback control gas pipeline, online monitoring and automatic purging and replacement of the hydrogen purity are achieved, the hydrogen purity in the environment box is guaranteed to meet requirements, and meanwhile the hydrogen purity detection and replacement can be completed under the unattended condition.
At present, after the compatibility test of the high-pressure hydrogen environment material is completed, the discharge rate of the discharged high-pressure hydrogen needs to be paid attention to, and the phenomenon that the hydrogen discharge rate is too fast to generate larger heat is prevented. In this embodiment, the gas pipeline includes an air inlet pipeline 73 communicated with the air supply module and an air outlet pipeline 74 communicated with the air outlet module 50, the hydrogen purity sensor 42 is installed in the air inlet pipeline 73, the air outlet pipeline 74 is provided with the automatic air outlet valve 48 and the gas flow sensor 45, and the online monitoring device 61 receives a feedback signal of the gas flow sensor 45 to control the valve opening of the automatic air outlet valve 48. It can be understood that, by designing a gas flow sensor 45 on the exhaust pipeline 74, the gas flow sensor 45 transmits flow information to the online monitoring device 61, and automatically controls the valve opening of the automatic exhaust port valve 48 through information feedback, so as to play a role in automatically regulating and controlling the hydrogen exhaust rate, and effectively reduce the risk in the hydrogen evacuation process.
In the gas supply module, the first gas supply unit 10 includes a hydrogen gas source 11 and a hydrogen pipeline 71, one end of the hydrogen pipeline 71 is connected to the hydrogen gas source 11, the other end is communicated with the gas inlet end of the gas pipeline, and the hydrogen pipeline 71 is provided with a hydrogen gas source automatic valve 12, a fire retardant valve 13, a hydrogen pipeline pressure reducing valve 14, a hydrogen pipeline pressure sensor 15 and a hydrogen pipeline automatic valve 16 which are all electrically connected with the online monitoring device 61. In addition, the second gas supply unit 20 includes an argon gas source 21 and an argon gas pipeline 72, one end of the argon gas pipeline 72 is connected to the argon gas source 21, the other end of the argon gas pipeline 72 is communicated with the gas inlet end of the gas pipeline, and the argon gas pipeline 72 is provided with an automatic argon gas source valve 22, an argon gas pipeline pressure reducing valve 24, an argon gas pipeline pressure sensor 25 and an automatic argon gas pipeline valve 26 which are all electrically connected to the on-line monitoring device 61.
In the vacuum pumping module 30, the vacuum pumping module 30 further includes a vacuum pumping pipeline 75, the vacuum pump 32 and the vacuum gauge 31 are installed on the vacuum pumping pipeline 75, one end of the vacuum pumping pipeline 75 is communicated with an air inlet pipe orifice of the air inlet pipeline 73, the other end of the vacuum pumping pipeline 75 is communicated with the air outlet pipeline 74, and further, the vacuum pumping pipeline 75 is connected with the air inlet pipeline 73 through the three-way valve 33 for vacuum pumping.
In the mechanical performance testing module 40, an air inlet pressure gauge 43 is installed on the air inlet pipeline 73, and an air outlet pressure gauge 44 is installed on the air outlet pipeline 74. Further, the intake pipeline 73 is further provided with an intake three-way valve 46, the intake three-way valve 46 is connected with a first bypass 76, the other end of the first bypass 76 is communicated with the exhaust pipeline 74, the intake pipeline 73 is further provided with a safety valve 47, the safety valve 47 is connected with a second bypass 77, and the other end of the second bypass 77 is communicated with the exhaust pipeline 74.
In the exhaust module 50, the exhaust module 50 comprises an exhaust pipeline 78 communicated with an air outlet pipe opening of the exhaust pipeline 74, the flame arrester 52 is installed on the exhaust pipeline 78, and the front end and the rear end of the flame arrester 52 are respectively provided with the automatic valve 51 at the front end of the flame arrester and the automatic valve 53 at the rear end of the flame arrester.
In this embodiment, a method for testing compatibility of an intrinsically safe high-purity high-pressure hydrogen environment material is further shown, and the system for testing compatibility of an intrinsically safe high-purity high-pressure hydrogen environment material includes the following steps:
s1, the mechanical property testing module 40 is vacuumized by the vacuuming module 30.
Specifically, the fire retardant valve 13, the hydrogen pipeline pressure reducing valve 14 and the hydrogen pipeline automatic valve 16 in the first gas supply unit 10 are opened, the argon pipeline pressure reducing valve 24 and the argon pipeline automatic valve 26 in the second gas supply unit 20 are opened, the vacuum pumping three-way valve 33 and the gas inlet three-way valve 46 and the safety valve 47 in the mechanical property testing module 40 are opened, the vacuum pump 32 in the vacuum pumping module 30 is started, and the whole system is firstly vacuumized, and the system comprises a hydrogen pipeline 71, an argon pipeline 72, a gas inlet pipeline 73, a gas exhaust pipeline 74, a vacuum pumping pipeline 75, a first bypass 76 and a second bypass 77.
S2, after the vacuum gauge 31 reaches the preset reading, the vacuum module 30 is turned off.
Specifically, the vacuum three-way valve 33 and the exhaust port automatic valve 48 are closed, and the vacuum pump 32 is closed.
And S3, filling argon into the mechanical performance testing module 40 through the second air supply unit 20, discharging the argon through the exhaust module 50, and vacuumizing through the vacuumizing module 30.
Specifically, the argon gas source automatic valve 22 is opened, the argon gas pipeline pressure reducing valve 24 is adjusted, and the argon gas pipeline automatic valve 26 and the exhaust port automatic valve 48 are opened, so that the whole gas pipeline and the environment box of the testing device 41 are filled with argon gas, and then the flame arrester bypass automatic valve 54 is opened to discharge the argon gas.
Then, the exhaust port automatic valve 48 and the argon gas source automatic valve 22 are closed, the vacuum pump 32 is turned on, and the whole system is evacuated again.
The purpose of this step is to purge the system with argon and to replace the residual air inside the system with air.
S4, filling hydrogen into the mechanical performance testing module 40 through the first air supply unit 10, exhausting the hydrogen through the exhaust module 50, and vacuumizing through the vacuumizing module 30.
S4.1, closing the argon gas source automatic valve 22, the argon gas pipeline pressure reducing valve 24, the argon gas pipeline automatic valve 26 and the flame arrester front end automatic valve 51, then opening the hydrogen gas source automatic valve 12, the flame arrester valve 13, the hydrogen pipeline pressure reducing valve 14, the hydrogen pipeline automatic valve 16, the air inlet three-way valve 46, the safety valve 47 and the exhaust port automatic valve 48, so that the gas pipeline and the environment box of the testing device 41 are filled with hydrogen, then closing the hydrogen gas source automatic valve 12, opening the flame arrester front end automatic valve 51 and the flame arrester rear end automatic valve 53, and opening the flame arrester bypass automatic valve 54 and exhausting residual hydrogen in the gas pipeline after the reading of the exhaust port pressure gauge 44 is reduced to about the opening pressure of the flame arrester 52.
And S4.2, closing the automatic valve 51 at the front end of the flame arrester, the automatic valve 53 at the rear end of the flame arrester and the automatic valve 48 at the exhaust port, starting the vacuum pump 32, vacuumizing the whole gas pipeline and the environment box of the testing device 41, purging the whole system through hydrogen, replacing and evacuating argon in the system, and improving the purity of hydrogen and purging efficiency by matching with the vacuumizing module 30.
S5, repeating the step S5 until the hydrogen purity sensor 42 detects that the hydrogen concentration reaches more than 99.999%;
the automatic exhaust port valve 48 is closed, and the filling of hydrogen into the environmental chamber of the test apparatus 41 is started, and the hydrogen purity sensor 42 detects the hydrogen purity:
if the purity of the hydrogen is less than 99.999%, opening an automatic exhaust port valve 48, an automatic flame arrester front end valve 51 and an automatic flame arrester rear end valve 53 to discharge the hydrogen; if the purity of the hydrogen reaches 99.999 percent, the automatic exhaust port valve 48 is closed, after the reading of the exhaust port pressure gauge 44 reaches the test pressure, the safety valve 47 and the automatic hydrogen source valve 12 are closed, the three-way air inlet valve 46, the automatic flame arrester front end valve 51 and the automatic flame arrester rear end valve 53 are opened, the hydrogen in the rest pipelines except the gas pipeline is exhausted, and the content of high-pressure gas in the pipelines is reduced.
And S6, after the high-pressure hydrogen environment material compatibility test, exhausting gas through the exhaust module 50.
After the high-pressure hydrogen environment material compatibility test is finished, opening the automatic exhaust port valve 48, the automatic flame arrester front end valve 51 and the automatic flame arrester rear end valve 53, releasing the pressure of the environment box of the testing device 41, reducing the reading of the exhaust port pressure gauge 44 to about the opening pressure of the flame arrester 52, closing the automatic flame arrester front end valve 51, opening the automatic flame arrester bypass valve 54, exhausting residual hydrogen in the gas pipeline, and eliminating potential safety hazards.
Step S7, opening the argon gas source automatic valve 22, adjusting the argon gas pipeline pressure reducing valve 24, opening the argon gas pipeline automatic valve 26, the air inlet three-way valve 46, the safety valve 47 and the air outlet automatic valve 48, purging the whole system by using argon gas, and replacing and evacuating hydrogen in the system, so that the hydrogen content and the pressure index in the system are reduced to a safe level after the test is finished.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
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| CN202110583039.0A CN113405912B (en) | 2021-05-27 | 2021-05-27 | Intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing system and method |
| PCT/CN2021/124658 WO2022247108A1 (en) | 2021-05-27 | 2021-10-19 | Intrinsically safe high-purity and high-pressure hydrogen environment material compatibility testing system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114923841A (en) * | 2022-04-26 | 2022-08-19 | 惠州市华达通气体制造股份有限公司 | Hydrogen embrittlement test environment simulation system and use method thereof |
| WO2022247108A1 (en) * | 2021-05-27 | 2022-12-01 | 华南理工大学 | Intrinsically safe high-purity and high-pressure hydrogen environment material compatibility testing system and method |
| CN116337712A (en) * | 2023-02-23 | 2023-06-27 | 上海天阳钢管有限公司 | Special test equipment of high pressure hydrogen separation |
| CN118010588A (en) * | 2024-01-22 | 2024-05-10 | 华南理工大学 | A polymer material hydrogen permeation test system and test method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116298179A (en) * | 2023-03-29 | 2023-06-23 | 北京航天试验技术研究所 | Device and method for testing impact sensitivity of energetic material airflow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511829A (en) * | 2013-09-15 | 2014-01-15 | 浙江大学 | Full-automatic purging, replacing and hydrogen-filling system of ultrahigh-pressure hydrogen environment material testing machine |
| CN106018119A (en) * | 2016-07-18 | 2016-10-12 | 西安交通大学 | Stretching stress testing machine used in high-temperature and high-pressure hydrogen environment |
| CN209725850U (en) * | 2019-03-22 | 2019-12-03 | 中国海洋石油集团有限公司 | A kind of fire arrester cleaning system |
| CN211374355U (en) * | 2019-10-31 | 2020-08-28 | 北京海德利森科技有限公司 | Ultrahigh pressure hydrogen pressure test system |
| US20210041334A1 (en) * | 2018-01-31 | 2021-02-11 | Maximator Gmbh | Test apparatus and method for testing a load change |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5356438B2 (en) * | 2011-03-04 | 2013-12-04 | 株式会社日本製鋼所 | Fatigue crack life evaluation method under high pressure hydrogen environment |
| CN106018139B (en) * | 2016-06-28 | 2018-09-28 | 华南理工大学 | The fast-open type high pressure hydrogen environment fatigue of materials performance test apparatus of stationary seal |
| CN112326501B (en) * | 2020-11-17 | 2024-12-06 | 惠州市华达通气体制造股份有限公司 | A hydrogen storage material multiple performance testing system and testing method |
| CN112722151A (en) * | 2021-01-22 | 2021-04-30 | 中船动力研究院有限公司 | Marine hydrogen system |
| CN113405912B (en) * | 2021-05-27 | 2022-12-16 | 华南理工大学 | Intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing system and method |
-
2021
- 2021-05-27 CN CN202110583039.0A patent/CN113405912B/en active Active
- 2021-10-19 WO PCT/CN2021/124658 patent/WO2022247108A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511829A (en) * | 2013-09-15 | 2014-01-15 | 浙江大学 | Full-automatic purging, replacing and hydrogen-filling system of ultrahigh-pressure hydrogen environment material testing machine |
| CN106018119A (en) * | 2016-07-18 | 2016-10-12 | 西安交通大学 | Stretching stress testing machine used in high-temperature and high-pressure hydrogen environment |
| US20210041334A1 (en) * | 2018-01-31 | 2021-02-11 | Maximator Gmbh | Test apparatus and method for testing a load change |
| CN209725850U (en) * | 2019-03-22 | 2019-12-03 | 中国海洋石油集团有限公司 | A kind of fire arrester cleaning system |
| CN211374355U (en) * | 2019-10-31 | 2020-08-28 | 北京海德利森科技有限公司 | Ultrahigh pressure hydrogen pressure test system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022247108A1 (en) * | 2021-05-27 | 2022-12-01 | 华南理工大学 | Intrinsically safe high-purity and high-pressure hydrogen environment material compatibility testing system and method |
| CN114923841A (en) * | 2022-04-26 | 2022-08-19 | 惠州市华达通气体制造股份有限公司 | Hydrogen embrittlement test environment simulation system and use method thereof |
| CN116337712A (en) * | 2023-02-23 | 2023-06-27 | 上海天阳钢管有限公司 | Special test equipment of high pressure hydrogen separation |
| CN116337712B (en) * | 2023-02-23 | 2024-04-02 | 上海天阳钢管有限公司 | Special test equipment of high pressure hydrogen separation |
| CN118010588A (en) * | 2024-01-22 | 2024-05-10 | 华南理工大学 | A polymer material hydrogen permeation test system and test method |
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| WO2022247108A1 (en) | 2022-12-01 |
| CN113405912B (en) | 2022-12-16 |
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