CN113775923A - Liquid hydrogen filling system - Google Patents

Liquid hydrogen filling system Download PDF

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Publication number
CN113775923A
CN113775923A CN202111067025.XA CN202111067025A CN113775923A CN 113775923 A CN113775923 A CN 113775923A CN 202111067025 A CN202111067025 A CN 202111067025A CN 113775923 A CN113775923 A CN 113775923A
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CN
China
Prior art keywords
liquid hydrogen
links
liquid
pipeline
hydrogen storage
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.)
Pending
Application number
CN202111067025.XA
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Chinese (zh)
Inventor
王朝
魏蔚
杜海滨
陈甲楠
何春辉
赵亚丽
况开锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Guofu Hydrogen Energy Technology Equipment Co Ltd
Zhangjiagang Hydrogen Cloud New Energy Research Institute Co Ltd
Original Assignee
Jiangsu Guofu Hydrogen Energy Technology Equipment Co Ltd
Zhangjiagang Hydrogen Cloud New Energy Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Jiangsu Guofu Hydrogen Energy Technology Equipment Co Ltd, Zhangjiagang Hydrogen Cloud New Energy Research Institute Co Ltd filed Critical Jiangsu Guofu Hydrogen Energy Technology Equipment Co Ltd
Priority to CN202111067025.XA priority Critical patent/CN113775923A/en
Publication of CN113775923A publication Critical patent/CN113775923A/en
Pending legal-status Critical Current

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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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • 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
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/023—Special adaptations of indicating, measuring, or monitoring equipment having the mass as the parameter
    • 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
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F17D1/14—Conveying liquids or viscous products by pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
    • 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
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • F17C2225/013—Single phase liquid
    • 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
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • 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
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • 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
    • F17C2227/0302—Heat exchange with the fluid by heating
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0615—Mass or weight of the content of the vessel
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/025—Reducing transfer time
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/061—Fluid distribution for supply of supplying vehicles
    • 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
    • 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
    • Y02E60/34—Hydrogen distribution
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention discloses a liquid hydrogen filling system, comprising: supercharging device is stored to liquid hydrogen, supercharging device is stored to liquid hydrogen links to each other with the feed liquor flowmeter, the feed liquor flowmeter links to each other with the feed liquor pneumatic valve, the feed liquor pneumatic valve links to each other with filling the dress seat, it links to each other with the liquid feeding rifle to fill the dress seat, supercharging device is stored to liquid hydrogen still links to each other with the air return flowmeter, the air return flowmeter links to each other with first check valve, first check valve links to each other with the air return seat, the air return seat links to each other with the air return rifle, the advanced end of recovery tube links to each other with the pipeline between feed liquor pneumatic valve and the feed liquor flowmeter, the play end of recovery tube links to each other with the pipeline between aeration device and the liquid hydrogen storage supercharging device, it has the recovery pneumatic valve to establish ties on the recovery tube, precool seat links to each other with the second check valve, the second check valve links to each other with the recovery tube, the pipeline between third check valve and the feed liquor pneumatic valve and the dress seat links to each other, the third check valve links to each other with the recovery tube. The liquid hydrogen filling system can meet the requirement of rapid filling for commercial operation.

Description

Liquid hydrogen filling system
Technical Field
The invention relates to the field of new energy equipment, in particular to a liquid hydrogen filling system.
Background
At present, no liquid hydrogen filling system for filling liquid hydrogen for liquid hydrogen vehicles for commercial operation exists in China.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a liquid hydrogen filling system that can meet the demand for rapid filling in commercial operations will be provided.
In order to solve the problems, the technical scheme adopted by the invention is as follows: a liquid hydrogen filling system, comprising: can store liquid hydrogen and can carry out the liquid hydrogen storage supercharging device of pressure boost to liquid hydrogen, its characterized in that: liquid hydrogen stores supercharging device's liquid outlet and passes through the pipeline and links to each other with the import of feed liquor flowmeter, feed liquor flowmeter's export is passed through the pipeline and is linked to each other with the import that fills the dress seat, the export that fills the dress seat passes through the hose and links to each other with the import of liquid rifle, liquid hydrogen stores supercharging device's return air mouth and passes through the pipeline and links to each other with the export of return air flowmeter, the import of return air flowmeter passes through the pipeline and links to each other with the export of first check valve, the import of first check valve passes through the pipeline and links to each other with the export of return air seat, the import of return air seat passes through the hose and links to each other with the export of return air rifle, still include: a recovery tube, a precooling seat, a second check valve, a third check valve, the pipeline between advancing end and feed liquor pneumatic valve and the feed liquor flowmeter of recovery tube links to each other, the pipeline between the play end of recovery tube and return gas flowmeter and the liquid hydrogen storage supercharging device links to each other, it has a recovery pneumatic valve to establish ties on the recovery tube, the export of precooling seat passes through the pipeline and links to each other with the import of second check valve, the export of second check valve passes through the pipeline and links to each other with the recovery tube, and the intercommunication department is located between recovery tube play end and the recovery pneumatic valve, the import of third check valve passes through the pipeline and links to each other with the pipeline between filling seat with the feed liquor pneumatic valve, the export of third check valve passes through the pipeline and links to each other with the recovery tube, and the intercommunication department is located between recovery tube advancing end and the recovery pneumatic valve.
Further, the aforementioned liquid hydrogen filling system, wherein: a liquid inlet root valve is connected in series on a pipeline between the liquid inlet flowmeter and the liquid hydrogen storage supercharging device, and a gas return root valve is connected in series on a pipeline between the outlet end of the recovery pipe and the liquid hydrogen storage supercharging device.
Further, the aforementioned liquid hydrogen filling system, wherein: the structure of the liquid hydrogen storage supercharging device comprises: liquid hydrogen storage tank and liquid hydrogen pump, liquid hydrogen storage tank pass through the pipeline and link to each other with the liquid hydrogen pump for the liquid hydrogen pump can extract the liquid hydrogen in the liquid hydrogen storage tank, and can carry out the pressure boost to liquid hydrogen, and booster unit's liquid outlet is stored as liquid hydrogen to the liquid outlet of liquid hydrogen pump, and booster unit's return-air port is stored as liquid hydrogen to the gaseous phase mouth of liquid hydrogen storage tank.
Further, the aforementioned liquid hydrogen filling system, wherein: the structure of the liquid hydrogen storage supercharging device comprises: liquid hydrogen storage tank, vaporizer, the business turn over of vaporizer links to each other with liquid hydrogen storage tank through the pipeline respectively for liquid hydrogen in the liquid hydrogen storage tank can enter into the vaporizer and gasify, and the gas hydrogen that the gasification obtained can get back to and carry out the pressure boost to liquid hydrogen in the liquid hydrogen storage tank again, and the liquid outlet of liquid hydrogen storage supercharging device is regarded as to the liquid mouth of liquid hydrogen storage tank, and the gas phase mouth of liquid hydrogen storage tank is regarded as the return-air mouth of liquid hydrogen storage supercharging device.
Further, the aforementioned liquid hydrogen filling system, wherein: a pressure transmitter and a pressure gauge are connected on a pipeline between the liquid inlet pneumatic valve and the filling seat.
The invention has the advantages that: the liquid hydrogen filling system can measure the flow of liquid hydrogen filling and gas return, can pre-cool the liquid filling gun and the liquid inlet flowmeter, and can also make the hydrogen in the pipeline return to the liquid hydrogen storage and pressurization device after liquid filling is completed, so that the rapid filling for commercial operation can be met.
Drawings
Fig. 1 is a schematic structural diagram of a liquid hydrogen filling system according to the present invention.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and the attached drawings.
As shown in fig. 1, a liquid hydrogen filling system includes: liquid hydrogen can be stored and liquid hydrogen can be carried out the liquid hydrogen storage supercharging device that the pressure boost is carried out to liquid hydrogen, liquid hydrogen storage supercharging device's liquid outlet passes through the pipeline and links to each other with the import of feed liquor flowmeter 1, feed liquor flowmeter 1's export is passed through the pipeline and is linked to each other with the import of filling dress seat 3, the export of filling dress seat 3 passes through the hose and links to each other with the import of liquid feeding rifle 4, liquid hydrogen storage supercharging device's return air mouth passes through the pipeline and links to each other with the export of return air flowmeter 5, return air flowmeter 5's import passes through the pipeline and links to each other with the export of first check valve 6, the import of first check valve 6 passes through the pipeline and links to each other with the export of return air seat 7, the import of return air seat 7 passes through the hose and links to each other with the export of return air rifle 8, still include: a recovery pipe 9, a precooling seat 10, a second check valve 11, a third check valve 12, the inlet end of the recovery pipe 9 is connected with the pipeline between the inlet pneumatic valve 2 and the inlet flow meter 1, the outlet end of the recovery pipe 9 is connected with the pipeline between the return flow meter 5 and the liquid hydrogen storage pressurizing device, a recovery pneumatic valve 13 is connected in series on the recovery pipe 9, the outlet of the precooling seat 10 is connected with the inlet of the second check valve 11 through the pipeline, the outlet of the second check valve 11 is connected with the recovery pipe 9 through the pipeline, and the communication position is between the outlet end of the recovery pipe 9 and the recovery pneumatic valve 13, the inlet of the third check valve 12 is connected with the pipeline between the inlet pneumatic valve 2 and the filling seat 3 through the pipeline, the outlet of the third check valve 12 is connected with the recovery pipe 9 through the pipeline, and the communication position is between the inlet end of the recovery pipe 9 and the recovery pneumatic valve 13.
In this embodiment, a liquid inlet root valve 14 is connected in series to the pipe between the liquid inlet flowmeter 1 and the liquid hydrogen storage pressurizing device, and a gas return root valve 15 is connected in series to the pipe between the outlet end of the recovery pipe 9 and the liquid hydrogen storage pressurizing device.
In this embodiment, the structure of the liquid hydrogen storage pressurizing device includes: liquid hydrogen storage tank 16 and liquid hydrogen pump 17, liquid hydrogen storage tank 16 passes through the pipeline and links to each other with liquid hydrogen pump 17 for liquid hydrogen in liquid hydrogen pump 17 can draw liquid hydrogen in the liquid hydrogen storage tank 16, and can carry out the pressure boost to liquid hydrogen, and the liquid outlet of liquid hydrogen pump 17 is as the liquid outlet of liquid hydrogen storage supercharging device, and the gaseous phase mouth of liquid hydrogen storage tank 16 is as the return-air mouth of liquid hydrogen storage supercharging device.
In practical applications, the structure of the liquid hydrogen storage pressurizing device may further include: liquid hydrogen storage tank, vaporizer, the business turn over of vaporizer links to each other with liquid hydrogen storage tank through the pipeline respectively for liquid hydrogen in the liquid hydrogen storage tank can enter into the vaporizer and gasify, and the gas hydrogen that the gasification obtained can get back to and carry out the pressure boost to liquid hydrogen in the liquid hydrogen storage tank again, and the liquid outlet of liquid hydrogen storage supercharging device is regarded as to the liquid mouth of liquid hydrogen storage tank, and the gas phase mouth of liquid hydrogen storage tank is regarded as the return-air mouth of liquid hydrogen storage supercharging device. The self-pressurization mode can also enable the liquid hydrogen in the liquid hydrogen storage tank to be conveyed outwards.
A pressure transmitter 18 and a pressure gauge 19 are connected to the pipe between the inlet pneumatic valve 2 and the filling seat 3.
During filling: the air return gun 8 is inserted into an air return port seat of the vehicle-mounted liquid hydrogen bottle, the liquid adding gun 4 is inserted into a liquid adding port seat of the vehicle-mounted liquid hydrogen bottle, the liquid inlet root valve 14, the air return root valve 15 and the liquid inlet pneumatic valve 2 are in an open state, the recovery pneumatic valve 13 is in a closed state, the liquid hydrogen pump 17 works to extract liquid hydrogen in the liquid hydrogen storage tank 16, at the moment, the liquid hydrogen can be filled into the vehicle-mounted liquid hydrogen bottle through the liquid inlet root valve 14, the liquid inlet flowmeter 1, the liquid inlet pneumatic valve 2, the filling seat 3 and the liquid adding gun 4 in sequence, and gas in the vehicle-mounted liquid hydrogen bottle can flow into the liquid hydrogen storage tank 16 through the air return gun 8, the air return seat 7, the first check valve 6, the air return flowmeter 5 and the air return root valve 15 in sequence. The liquid inlet flowmeter 2 is used for metering the flow of liquid hydrogen, and the return gas flowmeter 5 is used for metering the return gas quantity.
When the liquid hydrogen in the vehicle-mounted liquid hydrogen bottle is filled to 90% of the total volume, the flow of the liquid hydrogen is instantly reduced through the overshoot prevention device in the vehicle-mounted liquid hydrogen bottle. After the liquid inlet flow meter 2 detects a small flow, or the pressure transmitter 18 detects that the pressure is higher than a set value and gives a command signal for stopping liquid adding, the liquid inlet pneumatic valve 2 is closed, the recovery pneumatic valve 13 is opened, and the residual liquid hydrogen in the pipeline can be partially evaporated to increase the pressure in the pipeline, so that the residual hydrogen in the pipeline can return to the liquid hydrogen storage tank 16 through the recovery pipe 9.
Liquid adding gun circulation flow: after long-term liquid adding, the liquid adding gun 4 can be restored to normal temperature, liquid hydrogen can not be added at the moment, the liquid adding gun 4 needs to be precooled to a set temperature in advance, during precooling, the liquid inlet root valve 14, the air return root valve 15 and the liquid inlet pneumatic valve 2 are in an open state, the recovery pneumatic valve 13 is in a closed state, the liquid adding gun 4 is inserted into an inlet of the precooling seat 10, the liquid hydrogen pump 17 works to extract the liquid hydrogen in the liquid hydrogen storage tank 16, at the moment, the liquid hydrogen sequentially flows through the liquid inlet root valve 14, the liquid inlet flowmeter 1, the liquid inlet pneumatic valve 2, the filling seat 3, the liquid adding gun 4, the precooling seat 10, the second check valve 11 and the air return root valve 15 and then returns to the liquid hydrogen storage tank 16, and therefore the liquid adding gun 4 can be precooled through the liquid hydrogen.
Liquid inlet flowmeter circulation flow: after the liquid is not added for a long time, the liquid inlet flowmeter 1 can be restored to the normal temperature, and at the moment, the liquid inlet flowmeter 1 can not work normally, and can work normally after the liquid inlet flowmeter 1 is precooled to the set temperature. During precooling, the liquid inlet root valve 14, the gas return root valve 15 and the recovery pneumatic valve 13 are in an open state, the liquid inlet pneumatic valve 2 is in a closed state, the liquid hydrogen pump 17 works to pump liquid hydrogen in the liquid hydrogen storage tank 16, and at the moment, the liquid hydrogen flows through the liquid inlet root valve 14, the liquid inlet flowmeter 1, the recovery pneumatic valve 13 and the gas return root valve 15 in sequence and then returns to the liquid hydrogen storage tank 16, so that the liquid inlet flowmeter 1 can be precooled through the liquid hydrogen.

Claims (5)

1. A liquid hydrogen filling system, comprising: can store liquid hydrogen and can carry out the liquid hydrogen storage supercharging device of pressure boost to liquid hydrogen, its characterized in that: liquid hydrogen stores supercharging device's liquid outlet and passes through the pipeline and links to each other with the import of feed liquor flowmeter, feed liquor flowmeter's export is passed through the pipeline and is linked to each other with the import that fills the dress seat, the export that fills the dress seat passes through the hose and links to each other with the import of liquid rifle, liquid hydrogen stores supercharging device's return air mouth and passes through the pipeline and links to each other with the export of return air flowmeter, the import of return air flowmeter passes through the pipeline and links to each other with the export of first check valve, the import of first check valve passes through the pipeline and links to each other with the export of return air seat, the import of return air seat passes through the hose and links to each other with the export of return air rifle, still include: a recovery tube, a precooling seat, a second check valve, a third check valve, the pipeline between advancing end and feed liquor pneumatic valve and the feed liquor flowmeter of recovery tube links to each other, the pipeline between the play end of recovery tube and return gas flowmeter and the liquid hydrogen storage supercharging device links to each other, it has a recovery pneumatic valve to establish ties on the recovery tube, the export of precooling seat passes through the pipeline and links to each other with the import of second check valve, the export of second check valve passes through the pipeline and links to each other with the recovery tube, and the intercommunication department is located between recovery tube play end and the recovery pneumatic valve, the import of third check valve passes through the pipeline and links to each other with the pipeline between filling seat with the feed liquor pneumatic valve, the export of third check valve passes through the pipeline and links to each other with the recovery tube, and the intercommunication department is located between recovery tube advancing end and the recovery pneumatic valve.
2. A liquid hydrogen filling system according to claim 1, wherein: a liquid inlet root valve is connected in series on a pipeline between the liquid inlet flowmeter and the liquid hydrogen storage supercharging device, and a gas return root valve is connected in series on a pipeline between the outlet end of the recovery pipe and the liquid hydrogen storage supercharging device.
3. A liquid hydrogen filling system according to claim 1 or 2, wherein: the structure of the liquid hydrogen storage supercharging device comprises: liquid hydrogen storage tank and liquid hydrogen pump, liquid hydrogen storage tank pass through the pipeline and link to each other with the liquid hydrogen pump for the liquid hydrogen pump can extract the liquid hydrogen in the liquid hydrogen storage tank, and can carry out the pressure boost to liquid hydrogen, and booster unit's liquid outlet is stored as liquid hydrogen to the liquid outlet of liquid hydrogen pump, and booster unit's return-air port is stored as liquid hydrogen to the gaseous phase mouth of liquid hydrogen storage tank.
4. A liquid hydrogen filling system according to claim 1 or 2, wherein: the structure of the liquid hydrogen storage supercharging device comprises: liquid hydrogen storage tank, vaporizer, the business turn over of vaporizer links to each other with liquid hydrogen storage tank through the pipeline respectively for liquid hydrogen in the liquid hydrogen storage tank can enter into the vaporizer and gasify, and the gas hydrogen that the gasification obtained can get back to and carry out the pressure boost to liquid hydrogen in the liquid hydrogen storage tank again, and the liquid outlet of liquid hydrogen storage supercharging device is regarded as to the liquid mouth of liquid hydrogen storage tank, and the gas phase mouth of liquid hydrogen storage tank is regarded as the return-air mouth of liquid hydrogen storage supercharging device.
5. A liquid hydrogen filling system according to claim 1 or 2, wherein: a pressure transmitter and a pressure gauge are connected on a pipeline between the liquid inlet pneumatic valve and the filling seat.
CN202111067025.XA 2021-09-13 2021-09-13 Liquid hydrogen filling system Pending CN113775923A (en)

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CN112483886A (en) * 2020-12-25 2021-03-12 江苏国富氢能技术装备股份有限公司 Liquid hydrogen storage type hydrogenation device adopting liquid hydrogen pre-cooling
CN112483887A (en) * 2020-12-25 2021-03-12 江苏国富氢能技术装备股份有限公司 Buried liquid hydrogen storage type hydrogenation device
CN113154249A (en) * 2021-05-11 2021-07-23 江苏国富氢能技术装备股份有限公司 Integrated hydrogenation machine

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US5365981A (en) * 1991-08-31 1994-11-22 Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt E.V. Method and refuelling means for filling a cryotank
CN102182916A (en) * 2011-02-11 2011-09-14 张家港富瑞特种装备股份有限公司 Liquefied natural gas filling machine
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CN112483886A (en) * 2020-12-25 2021-03-12 江苏国富氢能技术装备股份有限公司 Liquid hydrogen storage type hydrogenation device adopting liquid hydrogen pre-cooling
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CN113154249A (en) * 2021-05-11 2021-07-23 江苏国富氢能技术装备股份有限公司 Integrated hydrogenation machine

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Application publication date: 20211210