CN116337712B - Special test equipment of high pressure hydrogen separation - Google Patents
Special test equipment of high pressure hydrogen separation Download PDFInfo
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- CN116337712B CN116337712B CN202310152698.8A CN202310152698A CN116337712B CN 116337712 B CN116337712 B CN 116337712B CN 202310152698 A CN202310152698 A CN 202310152698A CN 116337712 B CN116337712 B CN 116337712B
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- 238000012360 testing method Methods 0.000 title claims abstract description 111
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 34
- 239000001257 hydrogen Substances 0.000 title claims abstract description 34
- 238000000926 separation method Methods 0.000 title claims description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 title 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002808 molecular sieve Substances 0.000 claims abstract description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 5
- 239000004917 carbon fiber Substances 0.000 claims abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 230000004888 barrier function Effects 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 8
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- 238000010146 3D printing Methods 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 6
- 238000012806 monitoring device Methods 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/005—H2
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Fluid Mechanics (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to special test equipment for high-pressure hydrogen blocking, which comprises a pressurizing cavity, a molecular sieve pressure-bearing piece and a test cavity, wherein an air outlet of the pressurizing cavity is connected with the test cavity through the molecular sieve pressure-bearing piece, the interior of the pressurizing cavity is communicated with the interior of the test cavity, and the layer structures from the inner wall to the outer wall of the pressurizing cavity and the test cavity are sequentially a blocking material coating, a ceramic layer, a carbon fiber reinforced layer and a stainless steel shell. The invention is composed of a pressurizing cavity, a molecular sieve pressure-bearing piece and a testing cavity, wherein the pressurizing cavity and the testing cavity are made of composite materials, the pressure resistance is high, the pressure of high-pressure hydrogen blocking can be effectively detected, various safety requirements during use are met, the service life of the product is prolonged, and the invention has great economic popularization value.
Description
Technical Field
The invention relates to the technical field of hydrogen monitoring equipment, in particular to special testing equipment for high-pressure hydrogen blocking.
Background
The hydrogen monitoring device is a special device for monitoring the flow rate, pressure and temperature of hydrogen, which can help ensure safe use of hydrogen. The hydrogen monitoring device may be used to detect contaminants in the hydrogen gas to ensure the quality of the hydrogen gas. The main function of the hydrogen monitoring device is to detect the flow, pressure and temperature of hydrogen so as to ensure the safe use of hydrogen. It can also be used to detect contaminants in hydrogen to ensure the quality of the hydrogen.
The measurement accuracy of the high-pressure hydrogen blocking test equipment in the prior art is low, the pressure resistance of the equipment is low, the equipment is easy to deform after long-time use, and the safety requirement cannot be met. Secondly, the alarm function of the high-pressure hydrogen blocking test equipment is weak, and the condition that the pressure exceeds a safety value cannot be found in time. Finally, the high pressure hydrogen barrier test equipment is complex to operate and inconvenient to use. Therefore, the high-pressure hydrogen barrier test equipment in the prior art has certain defects and needs to be further improved.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the special test equipment for the high-pressure hydrogen barrier, which is made of a composite material, has high pressure resistance, can effectively detect the pressure of the high-pressure hydrogen barrier, meets various safety requirements during use, prolongs the service life of products, and has great economic popularization value.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a special test equipment of high pressure hydrogen separation, includes pressurization chamber, molecular sieve pressure-bearing piece and test chamber, the gas outlet in pressurization chamber passes through molecular sieve pressure-bearing piece with the test chamber is connected, the inside in pressurization chamber with the inside intercommunication in test chamber, the pressurization chamber with the layer structure of inner wall to the outer wall in test chamber is separation material coating, ceramic layer, carbon fiber enhancement layer and stainless steel shell in proper order.
The present invention may be further configured in a preferred example to: the barrier material coating is a model 915-2 coating or an alumina coating.
The present invention may be further configured in a preferred example to: and the inner container of the pressurizing cavity and the inner container of the testing cavity, which are formed by the ceramic layers, are printed by adopting a 3D printing method and are integrally formed.
The present invention may be further configured in a preferred example to: the bottom surface of pressurization chamber is connected with the breather pipe, the top surface of test chamber is connected with down the breather pipe, molecular sieve pressure-bearing piece respectively with go up the breather pipe and down the breather pipe is connected.
The present invention may be further configured in a preferred example to: the top surface of pressurization chamber is provided with air inlet, pressure test mouth, temperature test mouth and first pressure release mouth, the air inlet is used for connecting aerating device and makes the pressurization intracavity lets in test gas, the pressure test mouth is used for installing the manometer in order to test the pressure in the pressurization chamber, the temperature test mouth is used for installing the thermometer in order to test the temperature in the pressurization chamber, first pressure release mouth is used for installing the relief valve, through the adjustment the relief valve is in order to adjust the pressure in the pressurization chamber.
The present invention may be further configured in a preferred example to: the top surface of test chamber still is provided with evacuation mouth, vacuum degree test mouth, composition test mouth and second pressure release mouth, the evacuation mouth is used for connecting evacuating device in order to take out the gas in the test chamber, the vacuum degree test mouth is used for connecting the vacuum degree test device in order to judge whether reach the vacuum in the test chamber, the composition test mouth is used for testing the composition of the gaseous under test in the test chamber, the second pressure release mouth is used for installing the relief valve, through the adjustment the relief valve is in order to adjust the pressure in the pressurization chamber.
The present invention may be further configured in a preferred example to: and when the product is tested, the product to be tested is mounted on the molecular sieve pressure-bearing piece, and the pressure resistance of the molecular sieve pressure-bearing piece is more than or equal to 80Mpa.
The present invention may be further configured in a preferred example to: the molecular sieve pressure-bearing piece comprises a mounting pipe and connecting pipes respectively connected with two ends of the mounting pipe, external threads are arranged on the outer wall of the connecting pipes, internal threads matched with the external threads are arranged on the inner wall of the upper vent pipe and the inner wall of the lower vent pipe, the connecting pipes at the upper end of the mounting pipe are in threaded connection with the upper vent pipe, the connecting pipes at the lower end of the mounting pipe are in threaded connection with the lower vent pipe, and molecular sieves and materials to be tested are arranged in the mounting pipe.
In summary, the present invention includes at least one of the following beneficial technical effects:
the invention discloses a special test device for high-pressure hydrogen blocking, which consists of a pressurizing cavity, a molecular sieve pressure-bearing piece and a test cavity, wherein the pressurizing cavity and the test cavity are made of composite materials, the pressure resistance is high, the pressure of the high-pressure hydrogen blocking can be effectively detected, various safety requirements during use are met, the service life of a product is prolonged, and the special test device has great economic popularization value.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a cross-sectional view of a pressurized chamber or test chamber as shown in the present invention.
Fig. 3 is a cross-sectional view of a molecular sieve support member according to the present invention.
Reference numerals: 1. a pressurized cavity; 11. an upper vent pipe; 12. an air inlet; 13. a pressure test port; 14. a temperature test port; 15. a first pressure relief vent; 2. molecular sieve pressure-bearing piece; 21. installing a pipe; 22. a connecting pipe; 23. a molecular sieve; 24. a material to be measured; 3. a test chamber; 31. a lower vent pipe; 32. a vacuum pumping port; 33. a vacuum degree test port; 34. a component test port; a second pressure relief port 35; 4. a coating of barrier material; 5. a ceramic layer; 6. a carbon fiber reinforced layer; 7. stainless steel housing.
Description of the embodiments
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is apparent that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the scope of protection of the present application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements to be 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 application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like 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, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Examples
Referring to fig. 1, the invention discloses a special test device for high-pressure hydrogen barrier, which comprises a pressurizing cavity 1, a molecular sieve pressure-bearing piece and a test cavity 3, wherein an air outlet of the pressurizing cavity 1 is connected with the test cavity 3 through the molecular sieve pressure-bearing piece, and the interior of the pressurizing cavity 1 is communicated with the interior of the test cavity 3. Referring to fig. 2, the layer structures from the inner wall to the outer wall of the pressurizing chamber 1 and the testing chamber 3 are a barrier material coating 4, a ceramic layer 5, a carbon fiber reinforced layer 6 and a stainless steel housing 7 in sequence.
The barrier material coating 4 is a model 915-2 coating or an alumina coating. The inner container of the pressurizing cavity 1 and the inner container of the testing cavity 3, which are formed by the ceramic layer 5, are printed by adopting a 3D printing method and are integrally formed. The arrangement is such that no gap exists between the inner walls of the pressurizing chamber 1 and the testing chamber 3, so that the pressurizing chamber 1 and the testing chamber 3 can bear at least 80Mpa pressure.
The bottom surface of the pressurizing cavity 1 is connected with an upper vent pipe 11, the top surface of the testing cavity 3 is connected with a lower vent pipe 31, and the molecular sieve pressure-bearing piece is respectively connected with the upper vent pipe 11 and the lower vent pipe 31.
The top surface of the pressurizing cavity 1 is provided with an air inlet 12, a pressure test port 13, a temperature test port 14 and a first pressure relief port 15, the air inlet 12 is used for connecting an air charging device and enabling the pressurizing cavity 1 to be filled with test gas, the pressure test port 13 is used for installing a pressure gauge to test the pressure in the pressurizing cavity 1, the temperature test port 14 is used for installing a temperature gauge to test the temperature in the pressurizing cavity 1, the first pressure relief port 15 is used for installing a pressure relief valve, and the pressure in the pressurizing cavity 1 is regulated by adjusting the pressure relief valve.
The top surface of test chamber 3 still is provided with evacuation mouth 32, vacuum degree test mouth 33, composition test mouth 34 and second pressure release mouth, and evacuation mouth 32 is used for connecting evacuating device in order to take out the gas in the test chamber 3, and vacuum degree test mouth 33 is used for connecting vacuum degree test device in order to judge whether to reach the vacuum in the test chamber 3, and composition test mouth 34 is used for testing the composition of the gas that awaits measuring in the test chamber 3, and the second pressure release mouth is used for installing the relief valve, through adjusting the relief valve in order to adjust the pressure in the pressurization chamber 1.
When the product is tested, the product to be tested is arranged on the molecular sieve pressure bearing piece, and the pressure resistance of the molecular sieve pressure bearing piece is more than or equal to 80Mpa. Referring to fig. 3, the molecular sieve bearing member includes a mounting tube 21 and connection tubes 22 respectively connected to both ends of the mounting tube 21, an external thread is provided on an outer wall of the connection tube 22, internal threads matching the external thread are provided on inner walls of the upper vent tube 11 and the lower vent tube 31, the connection tube 22 at an upper end of the mounting tube 21 is in threaded connection with the upper vent tube 11, the connection tube 22 at a lower end of the mounting tube 21 is in threaded connection with the lower vent tube 31, and a molecular sieve 23 and a material 24 to be measured are provided in the mounting tube 21.
The implementation principle of the embodiment is as follows: during testing, the material 24 or the coating to be tested is installed in the installation tube 21, and then two ends of the molecular sieve pressure bearing piece 2 are respectively in threaded connection with the upper vent pipe 11 and the lower vent pipe 31, and the tightness of the connection part is ensured. Then, hydrogen is introduced into the pressurizing cavity 1 through the air inlet 12 of the pressurizing cavity 1, the molecular sieve 23 bears pressure but does not block hydrogen, and then the vacuum degree testing device at the lower side detects the testing cavity 3 to judge whether the testing cavity 3 is vacuum or not so as to detect whether hydrogen leaks or not.
The invention discloses a special test device for high-pressure hydrogen blocking, which consists of a pressurizing cavity 1, a molecular sieve pressure-bearing piece and a test cavity, wherein the pressurizing cavity 1 and the test cavity are made of composite materials, the pressure resistance is high, the pressure of the high-pressure hydrogen blocking can be effectively detected, various safety requirements during use are met, the service life of a product is prolonged, and the special test device has great economic popularization value.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (4)
1. The utility model provides a special test equipment of high pressure hydrogen separation which characterized in that: the device comprises a pressurizing cavity (1), a molecular sieve pressure-bearing piece (2) and a testing cavity (3), wherein an air outlet of the pressurizing cavity (1) is connected with the testing cavity (3) through the molecular sieve pressure-bearing piece (2), the interior of the pressurizing cavity (1) is communicated with the interior of the testing cavity (3), and a layer structure from the inner wall to the outer wall of the pressurizing cavity (1) and the testing cavity (3) is sequentially provided with a barrier material coating (4), a ceramic layer (5), a carbon fiber reinforced layer (6) and a stainless steel shell (7);
the bottom surface of the pressurizing cavity (1) is connected with an upper vent pipe (11), the top surface of the testing cavity (3) is connected with a lower vent pipe (31), and the molecular sieve pressure-bearing piece (2) is respectively connected with the upper vent pipe (11) and the lower vent pipe (31);
the top surface of the pressurizing cavity (1) is provided with an air inlet (12), a pressure testing port (13), a temperature testing port (14) and a first pressure relief port (15), the air inlet (12) is used for being connected with an air charging device and enabling test air to be introduced into the pressurizing cavity (1), the pressure testing port (13) is used for installing a pressure gauge to test the pressure in the pressurizing cavity (1), the temperature testing port (14) is used for installing a thermometer to test the temperature in the pressurizing cavity (1), and the first pressure relief port (15) is used for installing a pressure relief valve, and the pressure in the pressurizing cavity (1) is regulated by adjusting the pressure relief valve;
the top surface of the test cavity (3) is further provided with a vacuumizing port (32), a vacuum degree test port (33), a component test port (34) and a second pressure relief port, the vacuumizing port (32) is used for being connected with a vacuumizing device to suck out gas in the test cavity (3), the vacuum degree test port (33) is used for being connected with the vacuum degree test device to judge whether the vacuum is achieved in the test cavity (3), the component test port (34) is used for testing components of gas to be tested in the test cavity (3), and the second pressure relief port is used for installing a pressure relief valve, and the pressure in the pressurizing cavity (1) is regulated by adjusting the pressure relief valve;
the molecular sieve pressure-bearing piece (2) comprises a mounting pipe (21) and connecting pipes (22) respectively connected with two ends of the mounting pipe (21), external threads are arranged on the outer wall of the connecting pipes (22), internal threads matched with the external threads are arranged on the inner wall of the upper vent pipe (11) and the inner wall of the lower vent pipe (31), the connecting pipes (22) at the upper end of the mounting pipe (21) are in threaded connection with the upper vent pipe (11), the connecting pipes (22) at the lower end of the mounting pipe (21) are in threaded connection with the lower vent pipe (31), and molecular sieves (23) and materials (24) to be tested are arranged in the mounting pipe (21).
2. A high pressure hydrogen barrier specific test apparatus according to claim 1, characterized in that the barrier material coating (4) is a model 915-2 coating or an alumina coating.
3. The special test equipment for high-pressure hydrogen blocking according to claim 1, wherein the inner container of the pressurizing cavity (1) and the inner container of the test cavity (3) which are formed by the ceramic layer (5) are printed by adopting a 3D printing method and are integrally formed.
4. The high-pressure hydrogen barrier dedicated test equipment according to claim 1, wherein a product to be tested is mounted on the molecular sieve pressure-bearing member (2) when the product is tested, and the pressure resistance of the molecular sieve pressure-bearing member (2) is 80Mpa or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310152698.8A CN116337712B (en) | 2023-02-23 | 2023-02-23 | Special test equipment of high pressure hydrogen separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310152698.8A CN116337712B (en) | 2023-02-23 | 2023-02-23 | Special test equipment of high pressure hydrogen separation |
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| Publication Number | Publication Date |
|---|---|
| CN116337712A CN116337712A (en) | 2023-06-27 |
| CN116337712B true CN116337712B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310152698.8A Active CN116337712B (en) | 2023-02-23 | 2023-02-23 | Special test equipment of high pressure hydrogen separation |
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| CN (1) | CN116337712B (en) |
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| JP2005226107A (en) * | 2004-02-12 | 2005-08-25 | Ion Engineering Research Institute Corp | Hydrogen barrier-coated article for stainless steel pipe, vessel or the like, and production method therefor |
| CN213636058U (en) * | 2020-12-23 | 2021-07-06 | 未势能源科技有限公司 | Hydrogen monitoring device of hydrogen supply system and hydrogen supply system |
| CN113405912A (en) * | 2021-05-27 | 2021-09-17 | 华南理工大学 | Intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing system and method |
| CN113917080A (en) * | 2021-10-08 | 2022-01-11 | 北京航空航天大学 | Molecular sieve attenuation performance test equipment |
| CN115032114A (en) * | 2022-05-17 | 2022-09-09 | 江苏氢枫能源装备有限公司 | Hydrogen storage material performance testing device and testing method thereof |
| CN115308104A (en) * | 2022-06-29 | 2022-11-08 | 广东仪特技术有限公司 | Gas permeability tester |
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| US20080233010A1 (en) * | 2007-03-19 | 2008-09-25 | Hydrogen Discoveries, Inc. | Testing Hydrogen Flux Through Solid and Liquid Barrier Materials |
| US20210139693A1 (en) * | 2016-04-05 | 2021-05-13 | Hitachi Chemical Company, Ltd. | Resin composition, hydrogen gas barrier material, cured product, composite material, and structure |
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2023
- 2023-02-23 CN CN202310152698.8A patent/CN116337712B/en active Active
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| JP2005226107A (en) * | 2004-02-12 | 2005-08-25 | Ion Engineering Research Institute Corp | Hydrogen barrier-coated article for stainless steel pipe, vessel or the like, and production method therefor |
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| CN113405912A (en) * | 2021-05-27 | 2021-09-17 | 华南理工大学 | Intrinsically safe high-purity high-pressure hydrogen environment material compatibility testing system and method |
| 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 |
| CN113917080A (en) * | 2021-10-08 | 2022-01-11 | 北京航空航天大学 | Molecular sieve attenuation performance test equipment |
| CN115032114A (en) * | 2022-05-17 | 2022-09-09 | 江苏氢枫能源装备有限公司 | Hydrogen storage material performance testing device and testing method thereof |
| CN115308104A (en) * | 2022-06-29 | 2022-11-08 | 广东仪特技术有限公司 | Gas permeability tester |
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| Title |
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| CN116337712A (en) | 2023-06-27 |
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