CN115872360A - Hydrogen production purification system and hydrogen production equipment thereof - Google Patents
Hydrogen production purification system and hydrogen production equipment thereof Download PDFInfo
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- CN115872360A CN115872360A CN202210902810.0A CN202210902810A CN115872360A CN 115872360 A CN115872360 A CN 115872360A CN 202210902810 A CN202210902810 A CN 202210902810A CN 115872360 A CN115872360 A CN 115872360A
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- hydrogen production
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- 238000000746 purification Methods 0.000 title claims abstract description 124
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 239000001257 hydrogen Substances 0.000 title claims abstract description 88
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 88
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 239000007789 gas Substances 0.000 claims abstract description 57
- 238000010926 purge Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000011403 purification operation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- 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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Hydrogen, Water And Hydrids (AREA)
Abstract
The present invention provides a hydrogen production purification system comprising: one-level purification device, second grade purification device includes: an airflow control member; at least two purification means in parallel control cooperation with the gas flow control means; at least one throttle valve; when one part of valves in the airflow control component are closed and the other part of valves are opened, the water-vapor mixed gas passes through the purification component to obtain hydrogen with higher purity and larger airflow flow rate and flows to the outside, and the other part of hydrogen with lower airflow flow rate flows into the purification component and then gradually discharges a small amount of water and other gases remained in the purification component to the outside; conversely, controlling the manner in which the gas flow control means is closed or opened allows for alternate operation between the plurality of purification means. Compared with the prior art, the secondary purification device is arranged, so that the purity of the hydrogen is further improved, and the efficiency is high; meanwhile, the long service life is ensured, the maintenance rate and the replacement rate are low, and the cost is reduced. The invention also provides hydrogen production equipment.
Description
Technical Field
The invention relates to a hydrogen production purification system and hydrogen production equipment thereof.
Background
At present, hydrogen energy is expected to be a clean and efficient energy carrier. The hydrogen has wide application in the fields of chemical industry, electronics, scientific research, energy, special sintering, inspection and quarantine, generator cooling and the like; the pure water electrolysis hydrogen production technology is also the mainstream technology of large hydrogen production equipment in all countries in the world. However, the hydrogen obtained by the process has high water content and different purities along with different pressures, and the main component of impurities in the hydrogen obtaining process is water vapor, so that the direct application of pure water electrolytic hydrogen is restricted.
However, in the prior art, the inventor finds that hydrogen gas separated from a water-vapor separator of the prior art still contains a part of water vapor, so that the purity of the hydrogen gas after water-vapor separation is low, and the water-vapor separation effect is poor.
Therefore, the invention provides a hydrogen production purification system and a hydrogen production device thereof.
Disclosure of Invention
In view of the above problems in the prior art, the present invention is directed to a water-vapor separator and a hydrogen production plant thereof, which can further increase the purity of the hydrogen after water-vapor separation and has high purification efficiency.
The purpose of the invention can be realized by the following technical scheme:
a hydrogen production purification system comprising:
the primary purification device is provided with a water-vapor separator, and the water-vapor separator is used for filtering water in the first part of water-vapor mixed gas; the hydrogen production purification system is characterized in that,
a secondary purification device which can purify and adsorb other gases except hydrogen in the second part of water and water-vapor mixed gas is arranged in the water-vapor flow path after flowing out of the water-vapor separator,
the secondary purification device comprises:
the gas flow control component is provided with at least four valves and is used for controlling the closing or opening of the water-vapor mixture flowing out of the water-vapor separator;
at least two purification means in parallel control cooperation with the gas flow control means;
at least one throttle valve, both ends of which are communicated between the purification components; when one part of valves in the airflow control component are closed and the other part of valves are opened, the water-vapor mixed gas passes through the purification component to obtain hydrogen with higher purity and larger airflow flow rate and flows to the outside, and the other part of hydrogen with lower airflow flow rate flows into the purification component and then gradually discharges a small amount of water and other gases remained in the purification component to the outside;
conversely, controlling the manner in which the gas flow control means is closed or opened allows for alternate operation between a plurality of the purification means.
The hydrogen production purification system is characterized in that the valve of the gas flow control component at least comprises a first valve, a second valve, a third valve and a fourth valve, and also comprises a plurality of pipelines and a plurality of communicators, wherein the first valve is communicated with the second valve in series through the pipelines and the communicators, the third valve is communicated with the fourth valve in series through the pipelines and the communicators, the first valve is communicated with the third valve in parallel through the pipelines and the communicators, and the second valve is communicated with the fourth valve in parallel through the pipelines and the communicators;
the first valve and the second valve are communicated with the first vent of one of the purification components through the pipeline and the communicating vessel, and the second vent of the purification component extends to the outside through the communicating vessel and the pipeline;
the first vent of the other purifying member is communicated with the second vent of the first purifying member through the throttle valve, the second vent of the purifying member is communicated with a communicating device between the third valve and the fourth valve through the pipeline, and the fourth valve extends to the outside through the pipeline.
The hydrogen production purification system is characterized in that the purification components are purifiers.
The hydrogen production purification system is characterized by further comprising a plurality of filters, wherein two ports of one part of the filters are respectively communicated between the air vent of the purification component and the airflow control component, and two ports of the other part of the filters are respectively communicated between the other air vent of the purification component and the pipeline leading to the outside.
The hydrogen production purification system is characterized by further comprising a plurality of one-way valves, wherein:
a part of the check valve is provided at the air vent of the purification member located above the throttle valve, another part of the check valve is provided at an end side of the airflow control member, and another part of the check valve is provided between the outlet of the water-vapor separator and the airflow control member.
The hydrogen production purification system is characterized by also comprising a water seal, wherein the water seal can store other gases except hydrogen in a small part of water and water vapor mixed gas flowing out of the purification component;
the inlet end of the water seal is communicated with the airflow control member, and the outlet end of the water seal is communicated to the outside.
The hydrogen production purification system is characterized by further comprising a flame arrester, wherein the flame arrester is arranged at the outlet of the water seal.
The hydrogen production purification system is characterized by further comprising a purging and emptying device, wherein the purging and emptying device comprises a power source and an emptying valve, the power source is arranged in front of the water-vapor separator, and the power source can be started before the water-vapor separator operates to provide power for the purging and emptying device to provide airflow flowing;
the two ends of the emptying valve are communicated between the purifying component and the airflow control component in parallel.
The hydrogen production purification system is characterized by further comprising a backpressure valve and a flowmeter, wherein the backpressure valve is communicated with a port of the purification component close to the throttling valve;
the flowmeter is communicated with one side, close to the outside, of the back pressure valve, and the flowmeter can be used for detecting the flow of hydrogen flowing out of the back pressure valve.
The invention also provides a hydrogen production plant comprising a hydrogen production purification system as described above.
As described above, the hydrogen production purification system and the hydrogen production equipment thereof according to the present invention have the following advantages:
after the hydrogen production purification system and the hydrogen production equipment thereof are utilized, compared with the prior art, due to the adoption of the structure and the arrangement of the secondary purification device, the on-off mode or the off-off mode of the airflow control component is controlled, a plurality of purification components can work alternately, the purity of hydrogen after water and vapor separation can be further improved, and the purification work efficiency is high; meanwhile, the purification component has long service life, low maintenance rate and replacement rate, and the cost caused by maintenance and replacement is reduced.
The present invention will be further described with reference to the following embodiments.
Drawings
FIG. 1 is a schematic diagram of the hydrogen production purification system of the present invention;
fig. 2 is a schematic diagram of a structure of a hydrogen production purification system according to the present invention, in which a purification member (1A) is in purification operation and a purification member (1B) is in reduction, wherein black arrows represent gas flow directions;
fig. 3 is a schematic structural view of the hydrogen production purification system of the present invention in which the purification means (1A) is in the reduction operation and the purification means (1B) is in the purification operation, wherein black arrows represent the gas flow direction;
fig. 4 is a schematic structural diagram of the purge and exhaust device in the hydrogen production purification system of the present invention in a purge and exhaust state, wherein black arrows represent the flow direction of gas flow.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present invention.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions of the present disclosure, so that the present disclosure is not limited to the technical essence, and any modifications of the structures, changes of the ratios, or adjustments of the sizes, can still fall within the scope of the present disclosure without affecting the function and the achievable purpose of the present disclosure. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be made without substantial technical changes and modifications. The specific structure can be explained with reference to the drawings of the patent application.
In the following embodiments, the left side of the paper surface is the left direction, the right side of the paper surface is the right direction, the upper side of the paper surface is the upper direction, the lower side of the paper surface is the lower direction, the front side perpendicular to the paper surface is the front direction, and the rear side perpendicular to the paper surface is the rear direction.
The present invention provides a hydrogen production purification system, and the configuration of the hydrogen production purification system of the present invention will be described with reference to fig. 1 to 4. A hydrogen production purification system comprising:
a primary purification device 1, which is provided with a water-vapor separator 10, wherein the water-vapor separator 10 is used for filtering water in the first part of water-vapor mixed gas;
a secondary purification device 2 which can purify and adsorb other gases except hydrogen in the second part of the water-steam mixed gas is arranged in the water-steam flow path after flowing out of the water-steam separator 10,
the secondary purification device 2 comprises:
an air flow control member 20 having at least four valves, wherein the air flow control member 20 is used for controlling the closing or opening of the water-steam mixture flowing out of the water-steam separator 10;
at least two purification means (1A, 1B) in parallel control cooperation with said gas flow control means 20;
at least one throttle valve 21, both ends of which communicate between the purification members (1A, 1B); when one part of the valves in the gas flow control member 20 are closed and the other part of the valves are opened, the water-vapor mixed gas passes through the purification member 1A to obtain hydrogen with high purity and large gas flow rate, and flows to the purification member 1A, and the other part of the hydrogen with low gas flow rate flows to gradually discharge a small amount of water and other gases remained in the purification member 1B to the outside;
on the contrary, controlling the closing or opening manner of the gas flow control means 20 allows the plurality of purification means (1A, 1B) to be alternately operated.
Referring to fig. 1, 2 and 3, wherein black arrows in fig. 2 and 3 represent gas flow directions, C represents high-purity hydrogen gas, D represents a small amount of moisture and other gases; in the present embodiment, the valves of the gas flow control means 20 at least have a first valve SV106, a second valve SV107, a third valve SV108 and a fourth valve SV109, and further include a plurality of pipes 3 and a plurality of communicators 4, the first valve SV106 is in series communication with the second valve SV106 through the pipes SV106 and the communicators 4, the third valve 202 is in series communication with the fourth valve SV109 through the pipes SV106 and the communicators 4, the first valve SV106 is in parallel communication with the third valve SV108 through the pipes SV106 and the communicators 4, and the second valve SV107 is in parallel communication with the fourth valve SV109 through the pipes 3 and the communicators 4; it should be noted that the pipeline SV106 may be a stainless steel pipe; the communicating vessel 4 can be a three-way joint or a four-way joint;
the first valve SV106 and the second valve SV107 are communicated with a first ventilation port of one of the purification members (1A, 1B) through the pipeline 3 and a communicating vessel 4, and a second ventilation port of the purification member (1A, 1B) extends to the outside through the communicating vessel 4 and the pipeline 3;
the first ventilation opening of the other purification means (1A, 1B) is connected to the second ventilation opening of the first purification means (1A, 1B) via the throttle valve 21, the second ventilation opening of the purification means (1A, 1B) is connected to the connection between the third valve 202 and the fourth valve SV109 via the line 3, and the fourth valve SV109 is open to the environment via the line 3.
In the present embodiment, the plurality of purification members (1A, 1B) are purifiers.
As shown in fig. 1, 2 or 3, in this embodiment, the purification device further includes a plurality of filters 5, two ports of one part of the filters 5 are respectively communicated between the air vents of the purification members (1A, 1B) and the airflow control member, and two ports of the other part of the filters 5 are respectively communicated between the other air vent of the purification members (1A, 1B) and the duct 3 leading to the outside. The filter 5 is provided to further purify the hydrogen before or after entering the purification members (1A, 1B), which helps to further improve the purity of the obtained hydrogen.
As shown in fig. 1, in this embodiment, a plurality of check valves 6 are further included, where:
a part of the check valve 6 is provided at the air vent of the purification means (1A, 1B) located above the throttle valve 6, another part of the check valve 6 is provided at the end side of the airflow control means 20, and another part of the check valve 6 is provided between the outlet of the water vapor separator 10 and the airflow control means 20. The one-way valve 6 is arranged, so that the water-vapor mixed gas or the hydrogen can flow along a certain direction, and the series flow of the gas flow is avoided.
As shown in fig. 1 or fig. 2, in the present embodiment, a water seal 7 is further included, which is capable of storing a small portion of the water and water vapor mixture gas flowing out of the purification members (1A, 1B) except for hydrogen;
the inlet end of the water seal 7 is communicated with the airflow control member 20, and the outlet end of the water seal 7 is communicated to the outside. It should be noted that the water seal 7 can be understood as a container.
In the embodiment, as shown in fig. 1, a flame arrester 8 is further included, and the flame arrester 8 is disposed at an outlet of the water seal 7. The flame arrester 8 is arranged, so that fire hazard accidents can be avoided when other gases except hydrogen in a small part of water and water vapor mixed gas flowing out of the water seal 7, and high safety can be further ensured in the process of discharging the gases.
Referring to fig. 1 and 4, black arrows in fig. 4 indicate the flowing direction of the air flow, and E indicates the exhaust gas of other gases such as air; in the embodiment, waste gas of other gases such as air and the like is stored in the system before use, and in order to further improve the purity of hydrogen, the whole system needs to be evacuated before the two-stage purification system of the present application is used, so that the system further comprises a purging and evacuating device 9, the purging and evacuating device 9 comprises a power source 90 and an evacuating valve 91, the power source 90 is arranged in front of the water-vapor separator 10, and the power source 90 can be used for starting before the water-vapor separator 10 operates to provide power for the purging and evacuating device 9 to provide airflow flowing;
the two ends of the evacuation valve 91 are connected in parallel between the purification means (1A, 1B) and the gas flow control means 20. Before the two-stage purification system of the present invention is used, the purge evacuation device 9 is provided, and the power source 90 is first started to operate to generate power, at this time, a part of the airflow control member 20 needs to be closed, and the evacuation valve 91 needs to be closed, specifically, in the present invention, the first valve SV106, the fourth valve SV109 and the evacuation valve 91 need to be closed at the same time, so that the system storing the exhaust gas of other gases such as air is gradually exhausted to the outside, and an evacuation function is realized.
In this embodiment, the power source 90 includes a nitrogen cylinder.
As shown in fig. 1, in the present embodiment, a backpressure valve 11 and a flow meter 12 are further included, and the backpressure valve 11 is communicated with ports of the purification components (1A, 1B) near the throttle valve 21;
the flowmeter 12 is communicated with one side of the back pressure valve 11 close to the outside, and the flowmeter 12 can be used for detecting the flow of the hydrogen flowing out of the back pressure valve 11.
The hydrogen production equipment of the present invention has the following working principle: referring to fig. 1, 2 and 3, firstly, after the water-vapor mixture is subjected to primary purification in the water-vapor separator 10, the water-vapor mixture flows from the water-vapor separator 10 to the secondary purification device 2 through the pipeline 3; then, when the first valve SV106 and the third valve SV108 are closed and the second valve SV107 and the fourth valve SV109 are opened, the water-vapor mixed gas containing a small amount of water which flows in gradually flows into the purifier (1A) through the pipeline 3, the water-vapor mixed gas is purified in the purifier (1A), so that hydrogen gas with higher purity flows out from the opening of the purifier (1A), and the hydrogen gas with higher content flows to the outside through the pipeline 3 after passing through the filter 5; simultaneously, the hydrogen with lower content flows into the purifier (1B) from the position gradually under the action of the throttling valve 21, so that the hydrogen with lower content can discharge a small amount of water and other gases stored in the purifier (1B) to the outside through the pipeline 3, and thus the purifier (1A) is in operation and the purifier (1B) is in a reduction process; in contrast, when the second valve SV107 and the fourth valve SV109 are closed and the first valve SV106 and the third valve SV108 are opened, the operation thereof is substantially similar to that described above and is not described herein again, which enables the purifier (1B) to be operated while the purifier (1A) is in a reduction state; in conclusion, the purifier (1A) and the purifier (1B) can work alternately.
The invention also provides a hydrogen production plant comprising a hydrogen production purification system as described above.
As described above, the hydrogen production purification system and the hydrogen production apparatus thereof according to the present invention have the following advantages:
after the hydrogen production purification system and the hydrogen production equipment thereof are utilized, compared with the prior art, due to the adoption of the structure and the arrangement of the secondary purification device, the on-off or off-off mode of the airflow control component is controlled, so that a plurality of purification components (1A and 1B) can work alternately, the purity of hydrogen after water-vapor separation can be further improved, and the purification work efficiency is high; meanwhile, the purification component is ensured to have longer service life, the maintenance rate and the replacement rate are low, and the cost caused by maintenance and replacement is reduced.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Those skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A hydrogen production purification system comprising:
the primary purification device is provided with a water-vapor separator, and the water-vapor separator is used for filtering water in the first part of water-vapor mixed gas; the hydrogen production purification system is characterized in that,
a secondary purification device which can purify and adsorb other gases except hydrogen in the second part of water-steam mixed gas is arranged in the water-steam flow path after flowing out of the water-steam separator,
the secondary purification device comprises:
the gas flow control component is provided with at least four valves and is used for controlling the closing or opening of the water-steam mixture flowing out of the water-steam separator;
at least two purification means in parallel in controlling cooperation with the gas flow control means;
at least one throttle valve, both ends of which are communicated between the purification components; when one part of valves in the airflow control component are closed and the other part of valves are opened, the water-vapor mixed gas passes through the purification component to obtain hydrogen with higher purity and larger airflow flow rate to flow to the outside, and the other part of hydrogen with lower airflow flow rate flows into the purification component and then gradually discharges a small amount of water and other gases remained in the purification component to the outside;
conversely, controlling the manner in which the gas flow control means is closed or opened allows for alternate operation between a plurality of the purification means.
2. The hydrogen production purification system as claimed in claim 1, wherein the valves of the gas flow control member comprise at least a first valve, a second valve, a third valve and a fourth valve, and further comprise a plurality of pipes and a plurality of connectors, the first valve is in series communication with the second valve through the pipes and the connectors, the third valve is in series communication with the fourth valve through the pipes and the connectors, the first valve is in parallel communication with the third valve through the pipes and the connectors, and the second valve is in parallel communication with the fourth valve through the pipes and the connectors;
the first valve and the second valve are communicated with the first vent of one of the purification components through the pipeline and the communicating vessel, and the second vent of the purification component extends to the outside through the communicating vessel and the pipeline;
the first vent of the other purification unit is connected to the second vent of the first purification unit through the throttle valve, the second vent of the purification unit is connected to a connector between the third valve and the fourth valve through the pipe, and the fourth valve is extended to the outside through the pipe.
3. The hydrogen-producing purification system of claim 2, wherein the plurality of purification components are purifiers.
4. The hydrogen production purification system according to claim 2, further comprising a plurality of filters, wherein two ports of one part of the filters are respectively communicated between the vent port of the purification member and the gas flow control member, and two ports of the other part of the filters are respectively communicated between the other vent port of the purification member and the pipe leading to the outside.
5. The hydrogen production purification system as claimed in any one of claims 1 to 4, further comprising a plurality of one-way valves, wherein:
a part of the check valve is provided at the air vent of the purification member located above the throttle valve, another part of the check valve is provided at the end side of the airflow control member, and another part of the check valve is provided between the water-vapor separator outlet and the airflow control member.
6. The hydrogen production purification system as claimed in claim 1, further comprising a water seal capable of storing a small portion of the water and water vapor mixture gas flowing out of the purification member, in addition to hydrogen;
the inlet end of the water seal is communicated with the airflow control member, and the outlet end of the water seal is communicated to the outside.
7. The hydrogen production purification system as claimed in claim 6, further comprising a flame arrestor disposed at an outlet of the water seal.
8. The hydrogen-producing purification system according to any one of claims 1 to 4, further comprising a purge evacuation device, wherein the purge evacuation device comprises a power source and an evacuation valve, the power source is arranged in front of the water-vapor separator, and the power source can be used for starting before the water-vapor separator operates to provide power for the purge evacuation device to provide airflow;
the two ends of the emptying valve are communicated between the purifying component and the airflow control component in parallel.
9. The hydrogen production purification system as claimed in any one of claims 1 to 4, further comprising a back pressure valve and a flow meter, the back pressure valve communicating with a port of the purification member near the throttling valve;
the flowmeter is communicated with one side, close to the outside, of the back pressure valve, and the flowmeter can be used for detecting the flow of hydrogen flowing out of the back pressure valve.
10. A hydrogen plant comprising the hydrogen production purification system of any of claims 1-9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210670537 | 2022-06-14 | ||
| CN2022106705373 | 2022-06-14 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102078740A (en) * | 2010-12-13 | 2011-06-01 | 甘肃银光聚银化工有限公司 | Method for separating and purifying hydrogen from water gas by pressure swing adsorption |
| US20200061521A1 (en) * | 2018-08-23 | 2020-02-27 | Koninklijke Philips N.V. | Hybrid oxygen concentrator with oxygen side balancing |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102078740A (en) * | 2010-12-13 | 2011-06-01 | 甘肃银光聚银化工有限公司 | Method for separating and purifying hydrogen from water gas by pressure swing adsorption |
| US20200061521A1 (en) * | 2018-08-23 | 2020-02-27 | Koninklijke Philips N.V. | Hybrid oxygen concentrator with oxygen side balancing |
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| CN115872360B (en) | 2024-10-01 |
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