CN110388562A - Liquid hydrogen boil-off gas active bleeder - Google Patents
Liquid hydrogen boil-off gas active bleeder Download PDFInfo
- Publication number
- CN110388562A CN110388562A CN201910511453.3A CN201910511453A CN110388562A CN 110388562 A CN110388562 A CN 110388562A CN 201910511453 A CN201910511453 A CN 201910511453A CN 110388562 A CN110388562 A CN 110388562A
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- Prior art keywords
- hydrogen
- gas
- liquid hydrogen
- releasing
- heat exchanger
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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
- 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
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
-
- 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
-
- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
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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
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0107—Single phase
- F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
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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
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0367—Localisation of heat exchange
- F17C2227/0388—Localisation of heat exchange separate
- F17C2227/039—Localisation of heat exchange separate on the pipes
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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
- Y02E60/32—Hydrogen storage
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of liquid hydrogen boil-off gas active bleeder, active control valve, the secondary ortho-hydrogen reforming unit that connect active control valve, the gas throttling refrigeration device of releasing of the secondary ortho-hydrogen reforming unit outlet of connection, connection including being connected with liquid hydrogen storage-transport vessel release the outlet of gas throttling refrigeration device air-flow adjustable valve of releasing, by the cryogenic heat exchanger of refrigerant-recovery secondary ortho-hydrogen reforming unit and gas throttling refrigeration device cold energy of releasing；It further include hydrogen controller unit, hydrogen controller unit connection active control valve and air-flow adjustable valve of releasing.The present invention changes safety valve and passively opens and the limitation for liquid hydrogen boil-off gas of directly releasing, it is integrated with cold energy recyclable device to realize that the active of liquid hydrogen boil-off gas is released, by integrated cryogenic heat exchanger as cold energy recyclable device, the recycling and reuse of the contained cooling capacity of liquid hydrogen boil-off gas are realized.
Description
Technical field
The present invention relates to storage of liquid hydrogen technical field, specifically a kind of liquid hydrogen boil-off gas active bleeder.
Background technique
In recent years, flourishing with hydrogen cell automobile and clean energy technology, the demand rapid growth of hydrogen,
To in Hydrogen Energy industrial chain, upstream storage and transportation link propose low cost, efficiently, easily require.And liquid hydrogen is as efficient, maturation
Extensive Hydrogen Energy storage and transportation form, has obtained long-term practice in space industry, becomes the regional developments hydrogen fuel electricity such as beauty, day, Europe
Pond automobile industry, the important foundation stone for constructing Hydrogen Energy society.
Liquid hydrogen is to become fluid storage by being down to -253 DEG C after hydrogen purification, by multi-stage refrigerating by its temperature and exist
In low-temperature (low temperature) vessel, have the characteristics that energy density is big, storage and transportation is high-efficient.But since liquid hydrogen storage temperature is extremely low, easy evaporation, to storage
The low temperature of fortune equipment maintains performance requirement to be higher than conventional oxygen nitrogen and argon low-temperature (low temperature) vessel；And the hydrogen after releasing is inflammable and explosive, mistake
High frequency of releasing also brings along bigger security risk to ambient enviroment.Thus, the effect of releasing of liquid hydrogen storage and transportation, not only relationship
To the equipment safety (cooling, decompression) of liquid hydrogen container itself, the fire-proof and explosion-proof safety in the region that further relates to release.Understand liquid hydrogen in depth
The release physical characteristic of process, the safe and efficient liquid hydrogen of research and development of storage and transportation is released technology, and the height of extensive civilian liquid hydrogen is met
Safety, low-loss demand have become research topic particularly important in low-temperature equipment and Hydrogen Energy field.It is existing to be stored up for liquid hydrogen
The research that fortune equips technology of releasing is mainly directed towards space industry, and technical requirements have particularity；Although beauty, day, Europe etc. in recent years
State has carried out the demonstration of civilian scene in succession, but to realize its large-scale application it is still necessary to solve following key technical problem:
On the one hand, lack the mechanism study that liquid hydrogen strenuous exercise influences heat transfer property, it is difficult to when predicting dynamic storage and transportation
Liquid hydrogen evaporation capacity, thus it is unable to control the opportunity of releasing and place environment.Since existing liquid hydrogen bleed-off system does not have any active control
The research of means processed, related handling and storage characteristics rule can not play a role, safety valve can only according to both constant-pressures and metered flow to
Environment quickly release hydrogen decompression.It can not regulate and control after unpredictable before opening, unlatching, the liquid hydrogen boil-off gas of this passive type is let out
It puts, only protects the safety of liquid hydrogen container itself, since its opportunity of releasing is uncertain, once occur in city, tunnel or bright
Fiery hidden danger region, bring security threat are much higher than the value of container itself.Thus liquid hydrogen storage and transportation scale, civil nature it
Before, it is necessary to the implementation strategy that liquid hydrogen is released is optimized, the reasonability and peace that accurate evaluation liquid hydrogen boil-off gas is released
Quan Xing.
On the other hand, it must quickly release decompression after being opened due to existing safety device, auxiliary device can not be integrated to letting out
The cold energy that deflation body contains carries out recycling refrigeration.This cooling directly released, decompression mode are with only liquid hydrogen phase transformation
The latent heat of journey can not sufficiently extract the other forms cold energy that gas of releasing contains and cool down to liquid hydrogen main body, the cold screen of container etc.,
The loss that thus passive type liquid hydrogen is released under identical adiabatic condition is bigger, not only increases transportation cost, more frequent liquid
Hydrogen boil-off gas, which is released, also brings along more security risks.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of liquid hydrogen boil-off gas and actively lets out
Put device.
Technical solution: in order to solve the above technical problems, a kind of liquid hydrogen boil-off gas active bleeder of the invention, including with
Secondary ortho-hydrogen reforming unit, the secondary ortho-hydrogen of connection of active control valve, connection active control valve that liquid hydrogen storage-transport vessel is connected
The gas throttling refrigeration device of releasing of reforming unit outlet, the throughput adjusting of releasing for connecting gas throttling refrigeration device outlet of releasing
Valve passes through the cryogenic heat exchanger of refrigerant-recovery secondary ortho-hydrogen reforming unit and gas throttling refrigeration device cold energy of releasing；It further include hydrogen
Controller unit, hydrogen controller unit connection active control valve and air-flow adjustable valve of releasing.
Wherein, the active control valve is electromagnetic type Subzero valve.
Wherein, the cryogenic heat exchanger is cold face temperature etc..
Wherein, the gas throttling refrigeration device of releasing is configured with cryogenic throttle valve.
Wherein, the secondary ortho-hydrogen reforming unit includes shell, and heat exchange tube inlet is arranged on shell, and heat exchanger entrance connection is set
The helix-coil heat exchanger tube being placed in shell, helix-coil heat exchanger tube are connected at its internal straight tube heat exchanger tube, straight tube heat exchange
Pipe is connected at the heat transfer tube outlet on shell, and catalyst is arranged in straight tube heat exchanger tube；Entrance and exit is also set up on shell.
Wherein, the catalyst is particulate magnetic catalyst.
The utility model has the advantages that the invention has the following advantages:
The present invention changes safety valve and passively opens and the limitation for liquid hydrogen boil-off gas of directly releasing, and realizes liquid hydrogen boil-off gas
Active release integrated with cold energy recyclable device, cold energy recyclable device is used as by integrated cryogenic heat exchanger, realizes liquid hydrogen steaming
The recycling and reuse for contained cooling capacity of getting angry.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of secondary ortho-hydrogen reforming unit.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figure 1, a kind of liquid hydrogen boil-off gas active bleeder of the invention, including be connected with liquid hydrogen storage-transport vessel
Active control valve 1, the secondary ortho-hydrogen reforming unit 2, the secondary ortho-hydrogen reforming unit 2 of connection that connect active control valve 1 export
Release gas throttling refrigeration device 3, connection release gas throttling refrigeration device 3 outlet air-flow adjustable valve 4 of releasing, pass through refrigerant
Recycle the cryogenic heat exchanger 5 of secondary ortho-hydrogen reforming unit 2 and 3 cold energy of gas throttling refrigeration device of releasing, the gas throttling refrigeration of releasing
Device 3 is configured with cryogenic throttle valve.It further include hydrogen controller unit 6, hydrogen controller unit 6 connects active control valve 1 and lets out
Deflation flow control valve 4.Hydrogen controller unit 6 for automatically controlling active control valve 1 and throughput tune of releasing as needed
Valve 4 is saved, to realize that liquid hydrogen boil-off gas is actively released.
As shown in Fig. 2, secondary ortho-hydrogen reforming unit 2 includes shell 21, heat exchange tube inlet 22, heat exchanger entrance are set on shell
22 are connected in the helix-coil heat exchanger tube 23 in shell 21, and helix-coil heat exchanger tube 23 is connected at its internal straight tube and changes
Heat pipe 24, straight tube heat exchanger tube 24 are connected at the heat transfer tube outlet 25 on shell 21, catalyst 26 are arranged in straight tube heat exchanger tube 24；
Entrance 27 and outlet 28 are also set up on shell 21, the catalyst 26 is particulate magnetic catalyst.Entrance 27 and outlet 28 are used
The heat that ortho-hydrogen is discharged into parahydrogen conversion process is absorbed, is solved in positive parahydrogen conversion process with pass-out liquid nitrogen, liquid nitrogen in being passed through
Temperature maintain problem.
Active control valve 1 selects electromagnetic type Subzero valve, and material of main part is that hydrogen embrittlement can preferable 316L stainless steel.
Particulate magnetic catalyst is arranged in the internal straight tube heat exchanger tube 24 with porous structure in secondary ortho-hydrogen reforming unit 2, is improved
Secondary ortho-hydrogen conversion ratio and refrigerating capacity.By 4 control piper flow of air-flow adjustable valve of releasing, so that into gas throttling refrigeration of releasing
The liquid hydrogen boil-off gas temperature of device 3 is lower than 204K, and guarantee throttling process is absorption refrigeration process.Cryogenic heat exchanger 5 selects fin
Formula heat exchanger, the refrigerating capacity of recycling by refrigerant reach the cold screen of liquid hydrogen storage-transport vessel or for re-liquefied, cryogenic heat exchanger 5
The gas or fluid media (medium) that the fusing points such as helium are higher than 22K can be selected in refrigerant.
Hydrogen controller unit 6 is the microcontroller based on Cortex-M3 kernel, is pacified active using embedded software system
Full strategy program of releasing, automation, form key control unit, realize to active control valve 1 and throughput adjusting of releasing
The control of valve 4 and data upload.The wireless communication that data can be realized based on infrared communication module completes signal acquisition and control letter
Number output；The real time monitoring and upload to system running state are realized using mobile communications network.Utilize liquid hydrogen storage-transport vessel
Temperature, pressure detection data, prediction liquid hydrogen boil-off gas are released period and the amount of releasing, and are passed through global positioning system (GPS) and are obtained and hold
The position and environmental information that device is presently in, judge whether the liquid hydrogen boil-off gas that can release outward, and to drawoff discharge parameter into
Row control.For example, tank inner pressure parameter is more than 1MPa (safety valve jumping up pressure when GPS positioning is on non-rapid transit
Power is generally 1.2-1.6MPa) when, starting program of actively releasing is released liquid hydrogen boil-off gas outward；Monitoring temperature, pressure after releasing
Stop releasing when dropping to normal storage and transportation value (20K, normal pressure).
Secondary ortho-hydrogen reforming unit 2 may be selected to use with gas throttling refrigeration device 3 of releasing, if the two does not all use, that is, put
Cold energy recycling function is abandoned merely with active drainage function, the active that principle is still based on liquid hydrogen storage and transportation status predication is released tune
Control means, there are essential distinctions with the existing relief valve device passively released.
Claims (6)
1. a kind of liquid hydrogen boil-off gas active bleeder, it is characterised in that: including the active control being connected with liquid hydrogen storage-transport vessel
Valve (1) processed, the secondary ortho-hydrogen reforming unit (2) for connecting active control valve (1), connection secondary ortho-hydrogen reforming unit (2) outlet
Release gas throttling refrigeration device (3), connection release gas throttling refrigeration device (3) outlet air-flow adjustable valve (4) of releasing, pass through
The cryogenic heat exchanger (5) of the secondary ortho-hydrogen reforming unit (2) of refrigerant-recovery and gas throttling refrigeration device (3) cold energy of releasing；Further include
Hydrogen controller unit (6), hydrogen controller unit (6) connect active control valve (1) and release air-flow adjustable valve (4).
2. liquid hydrogen boil-off gas active bleeder according to claim 1, it is characterised in that: the active control valve
It (1) is electromagnetic type Subzero valve.
3. liquid hydrogen boil-off gas active bleeder according to claim 1, it is characterised in that: the cryogenic heat exchanger (5)
For cold face temperature etc..
4. liquid hydrogen boil-off gas active bleeder according to claim 1, it is characterised in that: the gas throttling refrigeration of releasing
Device (3) is configured with cryogenic throttle valve.
5. liquid hydrogen boil-off gas active bleeder according to claim 1, it is characterised in that: the secondary ortho-hydrogen reforming unit
(2) include shell (21), heat exchange tube inlet (22) are set on shell, heat exchanger entrance (22) is connected in shell (21)
Helix-coil heat exchanger tube (23), helix-coil heat exchanger tube (23) are connected at its internal straight tube heat exchanger tube (24), straight tube heat exchange
Pipe (24) is connected at the heat transfer tube outlet (25) on shell (21), and catalyst (26) are arranged in straight tube heat exchanger tube (24)；Shell
(21) entrance (27) and outlet (28) are also set up on.
6. liquid hydrogen boil-off gas active bleeder according to claim 5, it is characterised in that: the catalyst (26) is
Granular magnetic catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910511453.3A CN110388562B (en) | 2019-06-13 | 2019-06-13 | Active discharging device for liquid hydrogen evaporated gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910511453.3A CN110388562B (en) | 2019-06-13 | 2019-06-13 | Active discharging device for liquid hydrogen evaporated gas |
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| CN110388562A true CN110388562A (en) | 2019-10-29 |
| CN110388562B CN110388562B (en) | 2021-06-11 |
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| CN201910511453.3A Active CN110388562B (en) | 2019-06-13 | 2019-06-13 | Active discharging device for liquid hydrogen evaporated gas |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748786A (en) * | 2019-11-25 | 2020-02-04 | 杭州杭氧股份有限公司 | Device for industrially storing liquid hydrogen based on three-level heat-insulating layer of argon, nitrogen and normal hydrogen |
| CN113540502A (en) * | 2021-07-15 | 2021-10-22 | 山东大学 | Fuel cell waste heat power generation system based on hydrogen evaporation gas |
| CN115264379A (en) * | 2022-07-25 | 2022-11-01 | 中国石油大学(华东) | Hydrogen reliquefaction method and system for liquid hydrogen transport ship |
| CN115371298A (en) * | 2022-08-25 | 2022-11-22 | 北京航天试验技术研究所 | Skid-mounted system and method for liquid hydrogen and liquid oxygen synchronous deep supercooling |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748786A (en) * | 2019-11-25 | 2020-02-04 | 杭州杭氧股份有限公司 | Device for industrially storing liquid hydrogen based on three-level heat-insulating layer of argon, nitrogen and normal hydrogen |
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| CN113540502A (en) * | 2021-07-15 | 2021-10-22 | 山东大学 | Fuel cell waste heat power generation system based on hydrogen evaporation gas |
| CN113540502B (en) * | 2021-07-15 | 2022-05-17 | 山东大学 | Fuel cell waste heat power generation system based on hydrogen evaporation gas |
| CN115264379A (en) * | 2022-07-25 | 2022-11-01 | 中国石油大学(华东) | Hydrogen reliquefaction method and system for liquid hydrogen transport ship |
| CN115371298A (en) * | 2022-08-25 | 2022-11-22 | 北京航天试验技术研究所 | Skid-mounted system and method for liquid hydrogen and liquid oxygen synchronous deep supercooling |
| CN115371298B (en) * | 2022-08-25 | 2023-06-23 | 北京航天试验技术研究所 | Skid-mounted system and method for synchronous deep supercooling of liquid hydrogen and liquid oxygen |
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| CN110388562B (en) | 2021-06-11 |
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