CN116717714A - Filling and recycling integrated hydrogen filling method - Google Patents
Filling and recycling integrated hydrogen filling method Download PDFInfo
- Publication number
- CN116717714A CN116717714A CN202310687802.3A CN202310687802A CN116717714A CN 116717714 A CN116717714 A CN 116717714A CN 202310687802 A CN202310687802 A CN 202310687802A CN 116717714 A CN116717714 A CN 116717714A
- Authority
- CN
- China
- Prior art keywords
- compressor
- filling
- vehicle
- pipeline
- hydrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000001257 hydrogen Substances 0.000 title claims abstract description 38
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 38
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004064 recycling Methods 0.000 title claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 43
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims description 12
- 238000010992 reflux Methods 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 11
- 238000005984 hydrogenation reaction Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The application belongs to the field of hydrogen energy, and relates to a filling and recycling integrated hydrogen filling method, wherein a second compressor bypass valve is additionally arranged at the inlet and outlet positions of a second compressor check valve of a hydrogen filling system, and the residual gas of a recycled gas long pipe vehicle sequentially passes through a second vehicle filling busbar, a communication pipeline, a cluster grid busbar, a second cluster grid pipeline, a second compressor bypass valve, a second reflux pipeline, a second compressor inlet pipeline and a first compressor inlet pipeline to enter a first compressor for compression, and the compressed gas sequentially passes through the first compressor check valve, a hydrogen main pipe and the first vehicle filling busbar to fill a long pipe vehicle to be filled. The application can recycle the residual pressure in the long pipe vehicle, effectively avoids the situation that the use of a downstream user is affected due to the interruption of the hydrogen product caused by the interruption of the upstream raw material or the short-term stop of the hydrogen purification working section, and ensures the stability of hydrogen used by the user to the greatest extent.
Description
Technical Field
The application belongs to the field of hydrogen energy, and relates to hydrogen production, in particular to a filling and recycling integrated hydrogen filling method.
Background
The prior art filling system is shown in fig. 1, the outlet of the PSA device is connected with a product gas main 27 through a product gas outlet valve 30, a compressor inlet on-line pressure gauge PI2 is installed on the product gas main, the product gas main is divided into two parts, one part is connected with the inlet of the first compressor 1 through a first compressor inlet pipeline 25, a first compressor inlet valve 28 is installed on the first compressor inlet pipeline 25, the second part is connected with the inlet of the second compressor 2 through a second compressor inlet pipeline 26, and a second compressor inlet valve 29 is installed on the second compressor inlet pipeline 26; the first compressor outlet is connected with the first compressor outlet pipeline 5, a first compressor check valve 40 is arranged on the first compressor outlet pipeline 5, the first compressor outlet pipeline 5 is connected with three pipelines, the first pipeline is connected with the hydrogen main pipe 7 through the first compressor outlet valve 16, the second pipeline is connected with the first compressor inlet pipeline 25 through a first backflow pipeline 21, a first backflow regulating valve 23 is arranged on the first backflow pipeline 21, the third pipeline is connected with a first bundling grid pipeline 32, and the first bundling grid pipeline 32 is connected with the bundling grid main pipe 31 through a first bundling grid hand valve 36; similarly, the first compressor outlet is connected with the first compressor outlet pipeline 5, the second compressor outlet pipeline 6 is provided with a second compressor check valve 41, the second compressor outlet pipeline 6 is also connected with three pipelines, the first pipeline is connected with the hydrogen main pipe 7 through the second compressor outlet valve 17, the second pipeline is connected with the second compressor inlet pipeline 26 through the second reflux pipeline 22, the second reflux regulating valve 24 is arranged on the second reflux pipeline 22, the third pipeline is connected with the second bundling grid pipeline 33, and the second bundling grid pipeline 33 is connected with the bundling grid main pipe 31 through the second bundling grid hand valve 37;
the hydrogen main pipe 7 is connected with the filling main pipe 8 through a long pipe vehicle cut-off valve 38, the filling main pipe 8 is provided with a filling main pipe on-line pressure meter PI1, two pipelines are connected to the filling main pipe 8, one pipeline is connected with a first filling bus bar 11 through a first filling hand valve 19, the first filling bus bar on-line pressure meter PI3 is arranged on the first filling bus bar 11, the other pipeline is connected with a second filling reflux bar 12 through a second filling hand valve 20, the second filling bus bar on-line pressure meter PI4 is arranged on the second filling bus bar 12, one ends of a plurality of filling hose 13 are respectively and uniformly connected to the first filling bus bar 11 and the second filling bus bar 12, the other end of the vehicle charging hose 13 is connected with the long pipe vehicle 4, the vehicle charging hose is provided with a vehicle charging hand valve 15, the bundling grid main pipe 31 is connected with the bundling grid bus 9 through the bundling grid cut-off valve 39, the bundling grid on-line pressure gauge PI5 is arranged on the bundling grid bus 9, one ends of a plurality of vehicle charging hoses 10 are uniformly connected on the bundling grid bus 9, the other ends of the vehicle charging hoses 10 are connected with the bundling grid 3, the vehicle charging hand valve 14 is arranged on the vehicle charging hoses, the tail end of the bundling grid is connected with the tail end of the second vehicle charging bus 12 through the communication pipeline 34, and the communication valve 35 is arranged on the communication pipeline 34.
During normal filling, the purified hydrogen of the PSA device is compressed by the two compressors and then is respectively inflated to the long pipe trolley or the bundling grid, and check valves are respectively arranged at the outlets of the two compressors to prevent the gas from reversely flowing to the compressors.
The hydrogenation mother station generally uses the self-industrial byproduct hydrogen of a chemical plant, the stable supply of upstream raw material gas is realized, and in addition, the hydrogenation mother station is not provided with a raw material gas or product gas storage tank, so that if the chemical plant is stopped abnormally or detected greatly, the raw material gas in the hydrogenation mother station is interrupted, and the hydrogen for the hydrogenation station is also supplied intermittently, so that the influence is great. And hydrogen is urgently called from other areas, and the normal supply of a hydrogen station is difficult to meet due to the restrictions of conditions such as too far in route, low effective transportation weight of a long-pipe vehicle and the like.
Disclosure of Invention
The application aims to overcome the defects of the prior art, and provides a filling and recycling integrated hydrogen filling method, which is used for recycling the residual pressure in a long-tube vehicle, reducing the number of hydrogen purchased externally and ensuring the supply of a hydrogenation station to the greatest extent.
The technical scheme for realizing the purpose of the application is as follows:
a hydrogen filling method integrating filling and recovery is characterized in that a second compressor bypass valve is additionally arranged at the inlet and outlet positions of a second compressor check valve of a hydrogen filling system, and the residual gas of a recovered gas long-tube vehicle sequentially passes through a second vehicle filling busbar, a communication pipeline, a bundling grid busbar, a second bundling grid pipeline, a second compressor bypass valve, a second backflow pipeline, a second compressor inlet pipeline and a first compressor inlet pipeline to enter a first compressor for compression, and the compressed gas sequentially passes through the first compressor check valve, a hydrogen main pipe and the first vehicle filling busbar to fill the long-tube vehicle to be filled.
Further, the pressure of the product gas main pipe is controlled not to exceed the design pressure of the inlet of the compressor by adjusting the second reflux regulating valve, so that the safety valve of the inlet of the compressor is prevented from jumping.
And when the residual pressure of the reclaimed gas long pipe vehicle is lower than the lowest working pressure of the inlet of the compressor, switching another reclaimed gas long pipe vehicle, and continuing filling.
Further, when the residual gas of the recovered gas long pipe vehicle is not required to be used, the second compressor bypass valve is closed so as to avoid the compressor blow-by.
Further, the residual pressure of the reclaimed gas long pipe vehicle needs to be higher than the lowest working pressure of the compressor, otherwise, the compressor cannot work normally.
The application has the advantages and positive effects that:
according to the application, the second compressor bypass valve is additionally arranged at the inlet and outlet positions of the second compressor check valve in the hydrogen filling system in the background art, and the residual pressure in the long pipe vehicle can be recycled by changing the opening and closing conditions of the on-site valve, so that the situation that the use of a downstream user is influenced due to the interruption of an upstream raw material or the short-term stopping of a hydrogen purification working section is effectively avoided, and the stability of hydrogen used by the user is ensured to the greatest extent.
Drawings
FIG. 1 is a flow chart of a filling process of the background art;
FIG. 2 is a flow chart of a recycling process according to an embodiment of the present application.
Wherein: 1-first compressor, 2-second compressor, 3-cluster, 4-long pipe truck, 5-first compressor outlet line, 6-second compressor outlet line, 7-hydrogen manifold, 8-filling manifold, 9-cluster manifold, 10-filling cluster hose, 11-first filling manifold, 12-second filling manifold, 13-filling manifold hose, 14-filling cluster manifold valve, 15-filling truck valve, 16-first compressor outlet valve, 17-second compressor outlet valve, 18-hydrogen total valve, 19-first filling truck valve, 20-second filling truck valve, 21-first return line, 22-second return line, 23-first return adjustment valve, 24-second return adjustment valve, 25-first compressor inlet line 26-second compressor inlet line, 27-first compressor inlet valve, 29-second compressor inlet valve, 30-product gas outlet valve, 31-bundling manifold, 32-first bundling line, 33-second bundling line, 34-communication line, 35-communication valve, 36-first bundling hand valve, 37-second bundling hand valve, 38-long pipe vehicle shut-off valve, 39-bundling hand valve, 40-first compressor check valve, 41-second compressor check valve, 42-second compressor bypass valve, 43-recovery long pipe vehicle, PI 1-filling manifold on-line pressure gauge, PI 2-compressor inlet on-line pressure gauge, PI 3-first filling bus on-line pressure gauge, PI 4-second car charging busbar on-line pressure gauge and PI 5-bundling grid on-line pressure gauge.
Detailed Description
The application will be described in detail below with reference to the drawings in connection with embodiments. It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
When the upstream is stopped or the upstream device fails, hydrogen cannot be produced, and a user needs hydrogen supply urgently, and part of the long-tube vehicles have higher residual pressure at the moment, so that the method can be used for filling the hydrogen in the long-tube vehicles with higher residual pressure into the long-tube vehicles to be filled.
The specific method comprises the following steps: the second compressor bypass valve 42 is added to the inlet and outlet positions of the second compressor check valve 41 in the hydrogen filling system described in the background art.
Taking the first charging bus bar 11 as a charging line and the second charging bus bar 12 as a recovery line as an example, the long pipe vehicle 4 is connected to the charging hose 13 of the first charging bus bar 11 as a charging vehicle, and the recovery gas long pipe vehicle 43 is connected to the charging hose 13 of the second charging bus bar 12, and one recovery gas long pipe vehicle 43 may be connected or a plurality of recovery gas long pipe vehicles may be connected.
The specific operation is as follows:
the first bundling hand valve 36 is closed, the second compressor outlet valve 17 is closed, the second vehicle charging hand valve 20 is closed, the product gas outlet valve 30 is closed, the communication valve 35 is opened, the bundling check cut-off valve 39 is opened, the second bundling hand valve 37 is opened, the second compressor inlet valve 29 is opened, the second compressor bypass valve 42 is opened, the vehicle charging hand valve 15 of a recycling gas long pipe vehicle is opened, and the residual pressure of the recycling gas long pipe vehicle 43 is generally 8MPa, the pressure design of the product gas main 27 is not more than 3.2MPa, so that the pressure of the product gas main 27 can be controlled to be 2.9-3.0MPa by adjusting the second reflux adjusting valve 24, and the pressure is monitored by the compressor inlet on-line pressure meter PI 2. Opening the first compressor inlet valve 28, starting the first compressor 1, opening the first compressor outlet valve 16, opening the long pipe vehicle cut-off valve 38, opening the first charging handle valve 19, opening the first charging bus 11 to connect the charging handle valve 15 of the long pipe vehicle 4, starting charging the long pipe vehicle 4,
the residual gas of the recovered gas long pipe vehicle 43 sequentially passes through the second vehicle charging busbar 12, the communication pipeline 34, the bundling grid busbar 9, the second bundling grid pipeline 33, the second compressor bypass valve 42, the second backflow pipeline 22, the second compressor inlet pipeline 26 and the first compressor inlet pipeline 25 to enter the first compressor 1 for compression, and the compressed gas sequentially passes through the first compressor check valve 40, the hydrogen main pipe 7 and the first vehicle charging busbar 11 to charge the long pipe vehicle 4 to be charged.
Since the residual pressure of the long recovery gas pipe vehicle 43 can be slowly reduced, the pressure of the product gas main pipe 27 is ensured to be 2.9-3.0MPa by opening the second reflux regulating valve 24, and when the residual pressure of the long recovery gas pipe vehicle 43 is lower than 2.9MPa, the other long recovery gas pipe vehicle 43 is switched to continue filling. The interlocking value of the long pipe vehicle cut-off valve 38 is manually input to 20MPa, when the first charging bus bar on-line pressure gauge PI2 reaches 19.5MPa, an alarm signal is sent, when no one operates, the first charging bus bar on-line pressure gauge PI3 reaches 20MPa, the interlocking is triggered, the long pipe vehicle cut-off valve 38 is closed, and the long pipe vehicle at the first charging bus bar 11 is prevented from being overcharged.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (5)
1. A filling and recycling integrated hydrogen filling method is characterized in that a second compressor bypass valve (42) is additionally arranged at the inlet and outlet positions of a second compressor check valve (41) of a hydrogen filling system, residual air of a recycling long pipe vehicle (43) sequentially passes through a second vehicle filling busbar (12), a communication pipeline (34), a bundling grid busbar (9), a second bundling grid pipeline (33), a second compressor bypass valve (42), a second backflow pipeline (22), a second compressor inlet pipeline (26) and a first compressor inlet pipeline (25) to enter a first compressor (1) for compression, and compressed air sequentially passes through a first compressor check valve (40), a hydrogen main pipe (7) and a first vehicle filling busbar (11) to fill a long pipe vehicle (4) to be filled.
2. Filling method according to claim 1, characterized in that the product gas header (27) pressure is controlled not to exceed the compressor inlet design pressure by adjusting the second return regulator valve (24).
3. Filling method according to claim 2, characterized in that when the residual pressure of the recovery gas long pipe vehicle (43) is lower than the lowest working pressure of the compressor inlet, another recovery gas long pipe vehicle (43) is switched to continue filling.
4. A filling method according to claim 3, characterized in that the second compressor bypass valve (42) is closed when the use of the residual gas of the recycle gas line (43) is not required.
5. Filling method according to claim 4, characterized in that the residual pressure of the recovery gas line (43) is higher than the minimum operating pressure of the compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310687802.3A CN116717714B (en) | 2023-06-12 | 2023-06-12 | Filling and recycling integrated hydrogen filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310687802.3A CN116717714B (en) | 2023-06-12 | 2023-06-12 | Filling and recycling integrated hydrogen filling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116717714A true CN116717714A (en) | 2023-09-08 |
| CN116717714B CN116717714B (en) | 2024-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310687802.3A Active CN116717714B (en) | 2023-06-12 | 2023-06-12 | Filling and recycling integrated hydrogen filling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116717714B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204778813U (en) * | 2015-07-06 | 2015-11-18 | 上海加力气体有限公司 | Can prevent hydrogen feeding mechanism of hydrogen supply discontinuity |
| CN108980614A (en) * | 2018-08-20 | 2018-12-11 | 克拉玛依市富城天然气有限责任公司 | Integrated natural gas processing system is recycled in a kind of formation testing, gas testing |
| CN215891958U (en) * | 2021-09-29 | 2022-02-22 | 四川新途流体控制技术有限公司 | Automatic filling device for bottled pure gas and mixed gas |
| CN114270109A (en) * | 2019-08-05 | 2022-04-01 | 乔治洛德方法研究和开发液化空气有限公司 | Cooling and/or liquefaction system and method |
| CN218268560U (en) * | 2022-04-20 | 2023-01-10 | 湖北葛化中极氢能源有限公司 | Hydrogen-rich gas recovery device for replacement later stage of hydrogen long pipe vehicle and container grid |
-
2023
- 2023-06-12 CN CN202310687802.3A patent/CN116717714B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204778813U (en) * | 2015-07-06 | 2015-11-18 | 上海加力气体有限公司 | Can prevent hydrogen feeding mechanism of hydrogen supply discontinuity |
| CN108980614A (en) * | 2018-08-20 | 2018-12-11 | 克拉玛依市富城天然气有限责任公司 | Integrated natural gas processing system is recycled in a kind of formation testing, gas testing |
| CN114270109A (en) * | 2019-08-05 | 2022-04-01 | 乔治洛德方法研究和开发液化空气有限公司 | Cooling and/or liquefaction system and method |
| CN215891958U (en) * | 2021-09-29 | 2022-02-22 | 四川新途流体控制技术有限公司 | Automatic filling device for bottled pure gas and mixed gas |
| CN218268560U (en) * | 2022-04-20 | 2023-01-10 | 湖北葛化中极氢能源有限公司 | Hydrogen-rich gas recovery device for replacement later stage of hydrogen long pipe vehicle and container grid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116717714B (en) | 2024-05-14 |
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