CN114719179B - Hydrogen high-pressure residual pressure utilization system and thermal management method thereof - Google Patents

Hydrogen high-pressure residual pressure utilization system and thermal management method thereof Download PDF

Info

Publication number
CN114719179B
CN114719179B CN202210257164.7A CN202210257164A CN114719179B CN 114719179 B CN114719179 B CN 114719179B CN 202210257164 A CN202210257164 A CN 202210257164A CN 114719179 B CN114719179 B CN 114719179B
Authority
CN
China
Prior art keywords
hydrogen
pressure
heat exchanger
hot
cold
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.)
Active
Application number
CN202210257164.7A
Other languages
Chinese (zh)
Other versions
CN114719179A (en
Inventor
林锦浩
郝义国
张江龙
赵春平
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.)
Wuhan Grove Hydrogen Energy Automobile Co Ltd
Original Assignee
Wuhan Grove Hydrogen Energy Automobile 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.)
Filing date
Publication date
Application filed by Wuhan Grove Hydrogen Energy Automobile Co Ltd filed Critical Wuhan Grove Hydrogen Energy Automobile Co Ltd
Priority to CN202210257164.7A priority Critical patent/CN114719179B/en
Publication of CN114719179A publication Critical patent/CN114719179A/en
Application granted granted Critical
Publication of CN114719179B publication Critical patent/CN114719179B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under 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
    • 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • 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
    • 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
    • F17C2227/0157—Compressors
    • 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
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0178—Cars
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention provides a hydrogen high-pressure residual pressure utilization system and a thermal management method thereof, relating to the technical field of fuel cell hydrogen energy automobiles, wherein the system comprises: the input end of the vortex tube is connected with a high-pressure hydrogen source; the two heat exchangers are respectively configured to absorb heat and release heat and are respectively connected with the hot end and the cold end of the vortex tube, and each heat exchanger is connected with a bypass gas circuit in parallel; and a mixing chamber, wherein only one of the heat exchangers and the bypass gas passage which is not connected with the heat exchanger in parallel are communicated, so that the hydrogen is conveyed into the mixing chamber to be mixed, and then the hydrogen consumption equipment is supplied with hydrogen. The invention has the beneficial effects that: the potential energy of the high-pressure hydrogen is consumed by the vortex tube so as to form high-temperature and low-temperature hydrogen, and the high-temperature or low-temperature hydrogen is utilized for heat exchange, so that the device can be applied to rapid charging of a high-pressure hydrogen tank, adjustment of hydrogen and air inlet temperature of a galvanic pile, adjustment of air and hydrogen temperature of a purging galvanic pile, energy utilization efficiency of a hydrogen energy automobile is improved, and endurance mileage of the hydrogen energy automobile is prolonged.

Description

Hydrogen high-pressure residual pressure utilization system and thermal management method thereof
Technical Field
The invention relates to the technical field of fuel cell hydrogen energy automobiles, in particular to a hydrogen high-pressure residual pressure utilization system and a thermal management method thereof.
Background
At present, all fuel cell hydrogen energy automobiles on the market store hydrogen in the form of a high-pressure hydrogen tank, when hydrogen is needed, the hydrogen is needed to be throttled and depressurized for use, but the partial pressure difference is wasted directly through a throttle pressure reducing valve. Particularly, the vehicle type with high power hydrogen storage pressure has large depressurization amplitude and high hydrogen flow, the available energy can reach hundreds of watts, and the fuel cell system of the fuel cell hydrogen energy vehicle is provided with a temperature regulating system for regulating the temperature of the fuel cell system in the working process so as to ensure that the fuel cell system can keep high-efficiency and stable operation, and the operation of the temperature regulating system needs additional energy driving. The hydrogen energy automobiles of the fuel cell on the market cannot effectively utilize the pressure energy of the hydrogen in the high-pressure tank, if the residual pressure in the active depressurization process when the hydrogen is used can be utilized, and the partial energy is used for adjusting the temperature of the fuel cell system, the energy consumed by a temperature adjusting system in the hydrogen energy automobiles of the fuel cell in the operation process of the fuel cell can be reduced, so that the overall energy utilization efficiency of the hydrogen energy automobiles of the fuel cell is improved, and the prolongation of the endurance mileage of the hydrogen energy automobiles of the high fuel cell is facilitated.
Disclosure of Invention
In view of this, in order to make full use of the pressure energy of the hydrogen and improve the overall energy utilization efficiency of the fuel cell hydrogen energy automobile, the embodiment of the invention provides a hydrogen high-pressure excess pressure utilization system and a thermal management method thereof.
The embodiment of the invention provides a hydrogen high-pressure residual pressure utilization system, which comprises:
the input end of the vortex tube is connected with a high-pressure hydrogen source;
one heat exchanger is connected with the hot end of the vortex tube through an air path and is configured to absorb heat, the other heat exchanger is connected with the cold end of the vortex tube through an air path and is configured to release heat, and each heat exchanger is connected with a bypass air path in parallel;
and the mixing chamber is respectively connected with the two heat exchangers and the two bypass gas paths, and only one heat exchanger and the bypass gas path which is not connected with the heat exchanger in parallel circulate so as to convey hydrogen into the mixing chamber to be mixed so as to supply hydrogen for the hydrogen consumption equipment.
Further, the high-pressure hydrogen source is high-pressure hydrogen charging equipment, and the hydrogen consumption equipment is a high-pressure hydrogen tank.
Further, the hydrogen consumption device is a galvanic pile, and the high-pressure hydrogen source is a high-pressure hydrogen tank; the vortex tube is fluidly connected to the high pressure hydrogen tank.
Further, the heat exchanger connected with the hot end of the vortex tube is a hot end heat exchanger, the bypass gas circuit connected with the hot end heat exchanger in parallel is a first hot end bypass gas circuit, the heat exchanger connected with the cold end of the vortex tube is a cold end heat exchanger, and the bypass gas circuit connected with the cold end heat exchanger in parallel is a first cold end bypass gas circuit;
the hot end heat exchanger is also connected in parallel with a second hot end bypass air path, and the second hot end bypass air path is used for providing heating capacity for a heating demand end; when the hydrogen flows to the mixing chamber through the second hot end bypass gas circuit and the cold end heat exchanger respectively and then flows to the hydrogen consumption equipment, the hydrogen does not flow through the hot end heat exchanger, the first hot end bypass gas circuit and the first cold end bypass gas circuit; and/or the cold end heat exchanger is also connected in parallel with a second cold end bypass air path, and the second cold end bypass air path is used for providing refrigerating capacity for a cooling demand end; when the hydrogen flows to the mixing chamber through the second cold end bypass gas circuit and the hot end heat exchanger respectively and then flows to the hydrogen consumption equipment, the hydrogen does not flow through the cold end heat exchanger, the first hot end bypass gas circuit and the first cold end bypass gas circuit.
Further, the method further comprises the following steps:
the air conveying pipeline is used for providing air for the electric pile and is provided with a compressor and an intercooler along the air conveying direction; when the intercooler is at the cooling demand end, the intercooler is not at the heating demand end; when the intercooler is the heating demand, it is not the cooling demand.
Further, the high-pressure hydrogen tank is fluidly connected with the electric pile through a hydrogen delivery pipeline; and/or the number of the groups of groups,
the high-pressure hydrogen tank is provided with a direct charging pipeline, and the direct charging pipeline is provided with a valve element.
Further, the output end of the high-pressure hydrogen source is provided with a valve element; and/or the number of the groups of groups,
the input end of the hydrogen consumption device is provided with a valve element; and/or the number of the groups of groups,
the first cold end bypass air path, the first hot end bypass air path, the hot end branch provided with the hot end heat exchanger and the cold end branch provided with the cold end heat exchanger are respectively provided with a valve.
The technical scheme of the hydrogen high-pressure residual pressure utilization system provided by the embodiment of the invention has the beneficial effects that: the potential energy of the high-pressure hydrogen is consumed by the vortex tube so as to form high-temperature hydrogen and low-temperature hydrogen, and the high-temperature hydrogen or the low-temperature hydrogen is utilized for heat exchange, so that the device can be applied to the rapid inflation of a high-pressure hydrogen tank, the adjustment of the hydrogen inlet temperature and the air inlet temperature of a galvanic pile, and the adjustment of the air and the temperature of the hydrogen for purging the galvanic pile, thereby improving the overall energy utilization efficiency of the fuel cell hydrogen energy automobile and prolonging the endurance mileage of the fuel cell hydrogen energy automobile.
1. When being applied to high-pressure hydrogen jar quick inflation, the hydrogen temperature of high-pressure hydrogen jar when dashing hydrogen is adjusted, avoids high-pressure hydrogen jar to fill the in-process hydrogen in the high-pressure hydrogen jar hydrogen temperature too high reach safe temperature threshold value and lead to needing to intermittently aerify, realizes the quick low temperature of high-pressure hydrogen jar and aerifys, improves the gas filling efficiency of high-pressure hydrogen jar.
2. When the method is applied to the adjustment of the hydrogen inlet temperature and the air inlet temperature of the electric pile, on one hand, the cold end heat exchanger can be utilized to absorb heat through hydrogen, so that the temperature of the hydrogen entering the electric pile is improved, the temperature rise process of the electric pile under the low temperature condition is accelerated, the time interval of the electric pile entering the normal running state under the low temperature environment is shortened, and the running efficiency of the electric pile is improved; on the other hand, the cold end heat exchanger is utilized to cool the air entering the electric pile, so that the air inlet temperature during normal operation of the electric pile can be reduced, and the electric pile operation efficiency can be improved.
3. When the cooling heat exchanger is applied to the regulation of the temperature of the air and the hydrogen for purging the electric pile, the hot end heat exchanger is utilized to improve the temperature of the air, the cooling heat exchanger is utilized to improve the temperature of the hydrogen, the temperature of the air and the hydrogen for purging the electric pile is improved, dehumidification is facilitated to the inside of the electric pile, and therefore shutdown purging efficiency is improved.
In addition, based on the hydrogen high-pressure residual pressure utilization system, the embodiment also provides a thermal management method of the hydrogen high-pressure residual pressure utilization system, which comprises the following steps:
s1, acquiring a thermal management demand instruction;
s2, based on the thermal management demand instruction, executing step S3 or step S4:
s3, flowing out the hydrogen from the high-pressure hydrogen source to the vortex tube; the hot-end hydrogen flow which is separated from the hot end of the vortex tube flows to a heat exchanger which is configured to absorb heat for cooling, and the cold-end hydrogen flow which is separated from the cold end of the vortex tube flows to a bypass air path which is connected with the heat exchanger which is configured to release heat in parallel and then is mixed with the cooled hot-end hydrogen in the mixing chamber to form first temperature-adapting hydrogen which meets the thermal management demand instruction and flows to the hydrogen consumption equipment;
s4, flowing out the hydrogen from the high-pressure hydrogen source to the vortex tube; and then, the cold-end hydrogen flow which is separated from the cold end of the vortex tube flows to a heat exchanger which is configured to release heat for heating, the hot-end hydrogen flow which is separated from the hot end of the vortex tube flows to a bypass air path which is connected with the heat exchanger which is configured to absorb heat in parallel, and then, the bypass air path is mixed with the heated cold-end hydrogen in the mixing chamber to form second temperature-adapting hydrogen which meets the thermal management demand instruction, and the second temperature-adapting hydrogen flows to the hydrogen consumption equipment.
Further, when the thermal management demand instruction is a high-pressure hydrogen tank hydrogen temperature control fast charging mode, step S3 is executed, and the step S3 specifically includes the steps of:
the hydrogen flowing out of the high-pressure hydrogen charging equipment flows to the vortex tube; the hot-end hydrogen flow which is separated from the hot end of the vortex tube flows to a heat exchanger which is configured to absorb heat for cooling, and the cold-end hydrogen flow which is separated from the cold end of the vortex tube flows to a bypass air path which is connected with the heat exchanger which is configured to release heat in parallel and then is mixed with the cooled hot-end hydrogen in the mixing chamber to form a first temperature-adaptive hydrogen flow which meets the heat management demand instruction to a high-pressure hydrogen tank;
and/or the number of the groups of groups,
when the thermal management demand command is in the stack low-temperature fast start mode, executing step S4, wherein the step S4 specifically includes the steps of:
the hydrogen flowing out of the high-pressure hydrogen tank flows to the vortex tube; and then, the cold-end hydrogen flow which is separated from the cold end of the vortex tube flows to a heat exchanger which is configured to release heat for heating, and the hot-end hydrogen flow which is separated from the hot end of the vortex tube flows to a bypass air path which is connected with the heat exchanger which is configured to absorb heat in parallel and then is mixed with the heated cold-end hydrogen in the mixing chamber to form second temperature-adapting hydrogen which meets the heat management demand instruction and flows to the galvanic pile.
Further, when the thermal management demand instruction is in a normal operation mode of the electric pile, executing the steps of:
s5, flowing out hydrogen in the high-pressure hydrogen tank to the vortex tube; the hot-end hydrogen which is separated from the hot end of the vortex tube flows to a heat exchanger configured to absorb heat to cool, and the cold-end hydrogen which is separated from the cold end of the vortex tube flows to an intercooler to heat exchange with air to heat; mixing the hot-end hydrogen after cooling and the cold-end hydrogen after heating to form third temperature-adapting hydrogen meeting the thermal management demand instruction, and flowing the cooled air to the electric pile;
and/or the number of the groups of groups,
when the thermal management demand instruction is in a stack shutdown purge mode, executing the steps of:
s6, flowing out hydrogen gas from the high-pressure hydrogen tank to the vortex tube; the cold-end hydrogen flow which is separated from the cold end of the vortex tube flows to a heat exchanger which is configured to release heat for heating, and the hot-end hydrogen which is separated from the hot end of the vortex tube flows to a second hot-end bypass gas path and then flows to an intercooler for heat exchange and cooling with air; and mixing the hot-end hydrogen after cooling and the cold-end hydrogen after heating to form fourth temperature-adaptive hydrogen which meets the thermal management demand instruction, and flowing the heated air to the electric pile.
The technical scheme of the thermal management method of the hydrogen high-pressure residual pressure utilization system provided by the embodiment of the invention has the advantages that are basically the same as those of the technical scheme of the hydrogen high-pressure residual pressure utilization system, and redundant description is omitted.
Drawings
FIG. 1 is a schematic diagram of an embodiment 1 of a hydrogen high pressure residual pressure utilization system according to the present invention;
FIG. 2 is a schematic diagram of an embodiment 2 of a hydrogen high pressure residual pressure utilization system according to the present invention;
FIG. 3 is a schematic diagram of an embodiment 3 of a hydrogen high pressure residual pressure utilization system according to the present invention;
FIG. 4 is a schematic illustration of an embodiment 4 of a hydrogen high pressure residual pressure utilization system of the present invention;
FIG. 5 is a schematic diagram of an embodiment 5 of a hydrogen high pressure residual pressure utilization system according to the present invention.
In the figure: the device comprises a 1-high-pressure hydrogen tank, a 2-galvanic pile, a 3-vortex tube, a 4-hot end heat exchanger, a 5-cold end heat exchanger, a 6-quick charging pipeline, a 7-first quick charging valve, an 8-hot end branch, a 9-cold end branch, a 10-first hot end bypass gas circuit, a 11-first cold end bypass gas circuit, a 12-first solenoid valve, a 13-second solenoid valve, a 14-third solenoid valve, a 15-fourth solenoid valve, a 16-hydrogen outlet pipeline, a 17-four-way valve, a 18-direct flushing pipeline, a 19-second quick charging valve, a 20-hydrogen conveying pipeline, a 21-fifth solenoid valve, a 22-pressure reducing valve, a 23-sixth solenoid valve, a 24-three-way valve, a 25-hydrogen inlet pipeline, a 26-fifth solenoid valve, a 27-hydrogen conveying branch, a 28-eighth solenoid valve, a 29-second hot end bypass gas circuit, a 30-tenth solenoid valve, a 31-second cold end bypass gas circuit, a 32-ninth solenoid valve, a 33-air conveying pipeline, a 34-intercooler and a 35-compressor.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings. The following presents a preferred one of a number of possible embodiments of the invention in order to provide a basic understanding of the invention, but is not intended to identify key or critical elements of the invention or to delineate the scope of the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1, embodiment 1 of the present invention provides a hydrogen high-pressure residual pressure utilization system, which is applied to low-temperature rapid and continuous inflation of hydrogen consuming equipment, such as a high-pressure hydrogen tank 1, including but not limited to the high-pressure hydrogen tank 1, and mainly comprises a vortex tube 3, two heat exchangers 4, 5 and a mixing chamber 6.
As shown in fig. 1, one side of the vortex tube 3 is an input end, the input end is connected with a high-pressure air source through an air circuit, and in this embodiment, the high-pressure air source is high-pressure hydrogen charging equipment, the input end of the vortex tube 3 is connected with a quick flushing pipeline 6, a valve element first quick charging valve 7 is arranged on the quick flushing pipeline 6, and the high-pressure hydrogen charging equipment inputs high-pressure hydrogen into the input end of the vortex tube 3 through the quick charging pipeline 6. The high-pressure hydrogen refers to hydrogen after compression treatment, and the pressure of the high-pressure hydrogen is at least 2bar. The pressure of the high-pressure hydrogen can be flexibly set according to application scenes in actual application, such as being applied to a hydrogen energy automobile, and the high-pressure hydrogen is generally set to be 35MPa or 70MPa, but other newly added high-pressure conditions in the application process are not excluded.
The vortex tube 3 is also provided with a hot end and a cold end, and high-pressure hydrogen is injected into the vortex tube 3 to generate vortex to separate cold and hot airflows, namely high-temperature hydrogen and low-temperature hydrogen are separated, wherein the high-temperature hydrogen flows out from the hot end of the vortex tube 3, and the low-temperature hydrogen flows out from the cold end of the vortex tube 3. Here, the high-temperature hydrogen gas and the low-temperature hydrogen gas are relatively, and the temperature of the high-temperature hydrogen gas is higher than the temperature of the low-temperature hydrogen gas, and the temperature of the high-temperature hydrogen gas and the low-temperature hydrogen gas is not particularly limited.
The two heat exchangers are respectively a hot end heat exchanger 4 and a cold end heat exchanger 5. Specifically, the hot side heat exchanger 4 is connected to the hot side of the vortex tube 3 through a hot side branch 8, a first electromagnetic valve 12 is arranged on the hot side branch 8, and the opening or closing of the hot side branch 8 is controlled by the first electromagnetic valve 12. The hot side heat exchanger 4 is configured to absorb heat, i.e. to absorb heat from the high temperature hydrogen flowing through the hot side branch 8, reducing the temperature of the hydrogen flowing through the hot side branch 8.
Similarly, the cold-end heat exchanger 5 is connected with the cold end of the vortex tube 3 through a cold-end branch 9, a second electromagnetic valve 13 is arranged on the cold-end branch 9, and the opening or closing of the cold-end branch 9 is controlled through the first electromagnetic valve 13. The cold side heat exchanger 5 is configured to dissipate heat, i.e. heat the cryogenic hydrogen flowing through the cold side branch 9, increasing the temperature flowing through the cold side branch 9.
And each heat exchanger is connected in parallel with a bypass gas circuit. In this embodiment, the hot side heat exchanger 4 is connected in parallel with a first hot side bypass air path 10, and a third electromagnetic valve 14 for controlling the opening and closing of the first hot side bypass air path 10 is disposed on the first hot side bypass air path 10. The cold end heat exchanger 5 is connected in parallel with a first cold end bypass air path 11, and a fourth electromagnetic valve 15 for controlling the opening and closing of the first cold end bypass air path 11 is arranged on the first cold end bypass air path.
As further shown in fig. 1, the mixing chamber 6 is connected to the two heat exchangers 4, 5 and the two bypass gas paths 10, 11, respectively, while the mixing chamber 6 is also connected to a hydrogen consumption device through a gas path. The mixing chamber 6 is connected with the hydrogen consumption device through a hydrogen outlet pipeline 16 and a direct flushing pipeline 18, the hydrogen outlet pipeline 16 and the direct flushing pipeline 18 are connected through a four-way 17 connector, and a second quick charge valve 19 is arranged on the direct flushing pipeline 18.
It should be noted that only one of the heat exchangers and the bypass gas passage not connected in parallel to the heat exchanger are in communication so that the hydrogen is delivered into the mixing chamber 6 to be mixed and then supplied to the hydrogen consuming device. Thus, one of the two air flows of high-temperature hydrogen and low-temperature hydrogen flows through the heat exchanger to perform heat exchange and temperature adjustment, the other air flow directly flows through the bypass air flow path, and then the two air flows are mixed to realize the temperature adjustment of the hydrogen.
It will be appreciated by those skilled in the art that the mixing chamber 6 serves only to mix two hydrogen streams, which may be pipes, chambers, and other pieces of equipment that perform the function of mixing two hydrogen streams.
When the temperature of the hydrogen input into the hydrogen consumption device needs to be regulated down, high-temperature hydrogen flows through the hot end heat exchanger 4 but does not flow through the first hot end bypass air path 10, low-temperature hydrogen flows through the first cold end bypass air path 11 but does not flow through the cold end heat exchanger 5, and the high-temperature hydrogen exchanges heat and cools through the hot end heat exchanger 4 so as to cool the hydrogen entering the mixing chamber 6. The hydrogen consumption device in this embodiment is specifically a high-pressure hydrogen tank 1, which can adjust the hydrogen temperature when the high-pressure hydrogen tank 1 is used for hydrogen charging, so as to avoid the situation that the high-pressure hydrogen tank 1 needs to be intermittently inflated due to the fact that the hydrogen temperature in the high-pressure hydrogen tank 1 is too high to reach a safe temperature threshold value in the hydrogen charging process, realize the rapid low-temperature inflation of the high-pressure hydrogen tank 1, and improve the inflation efficiency of the high-pressure hydrogen tank 1.
It will be appreciated that when it is desired to raise the temperature of the hydrogen gas supplied to the high-pressure hydrogen tank 1, the low-temperature hydrogen gas is caused to flow through the cold-end heat exchanger 5 but not through the first cold-end bypass gas path 11, and the high-temperature hydrogen gas is caused to flow through the first hot-end bypass gas path 10 but not through the hot-end heat exchanger 4, and the low-temperature hydrogen gas is heated by heat exchange of the cold-end heat exchanger 5, so that the temperature of the hydrogen gas supplied into the mixing chamber 6 is raised.
An air inlet valve is arranged at the air inlet of the high-pressure hydrogen tank 1, and the air inlet valve is a fifth electromagnetic valve 7. The high-pressure hydrogen tank 1 is also provided with a hydrogen delivery pipeline 20, and hydrogen is delivered to other equipment for supplying hydrogen through the hydrogen delivery pipeline 20. In this embodiment, the hydrogen delivery pipe 20 is connected to the four-way 17, and the hydrogen delivery pipe is connected to the hydrogen-requiring device through the four-way 17 to continuously deliver hydrogen.
Example 2
Referring to fig. 2, embodiment 2 of the present invention provides a hydrogen high-pressure residual pressure utilization system, which is further improved on the basis of the hydrogen high-pressure residual pressure utilization system provided in embodiment 1, and is applied to adjusting the hydrogen intake temperature of a hydrogen consuming device, such as adjusting the hydrogen intake temperature of a galvanic pile in this embodiment.
Example 2 differs from example 1 in that the high-pressure gas source is a high-pressure hydrogen tank 1 and the hydrogen consumption device is a stack 2. The high-pressure hydrogen tank 1 is connected with a hydrogen inlet pipeline 25 of the electric pile 2 through the hydrogen conveying pipeline 20, wherein the hydrogen conveying pipeline 20 and the hydrogen inlet pipeline 25 are connected through the four-way 17, a sixth electromagnetic valve 23 is arranged on the hydrogen conveying pipeline 20, and a fifth electromagnetic valve 21 and a pressure reducing valve 22 are sequentially arranged on the hydrogen inlet pipeline 25 along the airflow direction. Meanwhile, the input end of the vortex tube 3 is connected with a hydrogen delivery branch 27, and the hydrogen delivery branch 27 is connected with the hydrogen delivery pipeline 20 through a tee joint 24.
Under the low-temperature environment, the temperature of the hydrogen output by the high-pressure hydrogen tank 1 is lower, the high-temperature hydrogen and the low-temperature hydrogen are separated after flowing into the vortex tube 3 through the hydrogen conveying branch 27, wherein the high-temperature hydrogen flows into the mixing chamber 6 only through the first hot end bypass gas path 10, the low-temperature hydrogen flows into the mixing chamber 6 after absorbing heat through the cold end heat exchanger 5 and rising temperature, and the high-temperature hydrogen and the low-temperature hydrogen after rising temperature are mixed in the mixing chamber 6 and then are input into the electric pile 2 through the hydrogen outlet pipeline 16 and the hydrogen inlet pipeline 25. Therefore, the temperature of the hydrogen entering the electric pile 2 is higher than that of the hydrogen in the high-pressure hydrogen tank, the hydrogen inlet temperature of the electric pile 2 in a low-temperature environment can be improved, the temperature rise process of the electric pile 2 in the low-temperature condition is quickened, the time interval of the electric pile 2 in a normal running state in the low-temperature environment is shortened, and the running efficiency of the electric pile 2 is improved.
Example 3
Referring to fig. 3, embodiment 3 of the present invention provides a hydrogen high-pressure residual pressure utilization system, which is further improved on the basis of the hydrogen high-pressure residual pressure utilization system provided in embodiment 2, and is applied to lower the air intake temperature of the electric pile 2.
In comparison with embodiment 2, the stack 2 is provided with an air delivery line 33 for supplying air thereto, the air delivery line 33 being provided with a compressor 35 and an intercooler 34 in the air delivery direction. The intercooler 34 is connected in parallel with the cold-end heat exchanger 5 through a second cold-end bypass air path 31, and a valve element ninth electromagnetic valve 32 is further arranged on the second cold-end bypass air path 31.
As shown in fig. 3, the intercooler 34 is not a heating demand when it is a cooling demand. The high-temperature hydrogen and the low-temperature hydrogen are separated after the hydrogen output by the high-pressure hydrogen tank 1 flows into the vortex tube 3, wherein the low-temperature hydrogen only flows through the second cold end bypass gas circuit 31 and absorbs heat when flowing through the intercooler 34, so that the air conveyed in the air conveying pipeline 33 is cooled, the air inlet temperature during normal operation of the galvanic pile 2 can be regulated, and the operating efficiency of the galvanic pile 2 can be improved.
Example 4
Referring to fig. 4, embodiment 4 of the present invention provides a hydrogen high-pressure residual pressure utilization system, which is further improved on the basis of the hydrogen high-pressure residual pressure utilization system provided in embodiment 2, and is applied to the temperature of the air and hydrogen purged from the electric pile 2.
In comparison with embodiment 2, the stack 2 is provided with an air delivery line 33 for supplying air thereto, the air delivery line 33 being provided with a compressor 35 and an intercooler 34 in the air delivery direction. The intercooler 34 is connected in parallel with the hot side heat exchanger 4 through a second hot side bypass air path 29, and a tenth electromagnetic valve 30 is further arranged on the second hot side bypass air path 29.
As shown in fig. 3, the intercooler 34 is not a cooling demand when it is a heating demand. When the electric pile 2 is shut down and purged, the hydrogen output by the high-pressure hydrogen tank 1 flows into the vortex tube 3, and then high-temperature hydrogen and low-temperature hydrogen are separated, wherein the high-temperature hydrogen only flows through the second hot end bypass gas path 29 and releases heat when flowing through the intercooler 34, so that the temperature of purge air conveyed in the air conveying pipeline 33 is raised. Meanwhile, the low-temperature hydrogen only flows through the cold end heat exchanger 5 to absorb heat to raise the temperature, and the low-temperature hydrogen after the temperature rise and the high-temperature hydrogen after the temperature reduction are mixed and still keep a higher temperature, so that the air inlet temperature of air and hydrogen during purging of the electric pile 2 can be adjusted to be high, dehumidification of the inside of the electric pile 2 is facilitated, and the shutdown purging efficiency is improved.
It should be noted that, in embodiment 3 and embodiment 4, the intercooler is used as the cooling requirement end and the heating requirement end, but the cooling requirement end and the heating requirement end can be flexibly selected according to the application scenario in practical application, which is not limited in the embodiment, and can be other refrigeration equipment or heating equipment.
EXAMPLE 5
Referring to fig. 5, embodiment 4 of the present invention provides a hydrogen high-pressure residual pressure utilization system, and the improvement of embodiments 2, 3 and 4 is added on the basis of the hydrogen high-pressure residual pressure utilization system provided in embodiment 1, so that the hydrogen high-pressure residual pressure utilization system has the functions of rapid charging of the high-pressure hydrogen tank 1, adjustment of the hydrogen inlet temperature and the air inlet temperature of the electric pile 2, and adjustment of the air and the hydrogen temperature of the purging electric pile 2.
In addition, the embodiment further provides a thermal management method of the hydrogen high-pressure residual pressure utilization system based on the hydrogen high-pressure residual pressure utilization system, so as to realize one or more of the functions of rapid inflation of the high-pressure hydrogen tank 1, adjustment of the hydrogen inlet temperature and the air inlet temperature of the electric pile 2, purging of the air of the electric pile 2 and adjustment of the temperature of the hydrogen. The heat pipeline method specifically comprises the following steps:
s1, acquiring a thermal management demand instruction, wherein the thermal management demand instruction is a hydrogen temperature control quick charging mode of a high-pressure hydrogen tank 1 or a low-temperature quick start of a galvanic pile 2.
And S2, executing step S3 or step S4 based on the thermal management demand instruction.
S3, flowing out hydrogen from a high-pressure hydrogen source to the vortex tube 3; and hot-end hydrogen which is separated from the hot end of the vortex tube 3 flows to the hot-end heat exchanger 4 for cooling, and cold-end hydrogen which is separated from the cold end of the vortex tube 3 flows to the first cold-end bypass air path 11 and then is mixed with cooled hot-end hydrogen to form first temperature-adapting hydrogen which meets the thermal management demand instruction and flows to the hydrogen consumption equipment.
S4, flowing out hydrogen from a high-pressure hydrogen source to the vortex tube 3; and then, cold-end hydrogen which is separated from the cold end of the vortex tube 3 flows to the cold-end heat exchanger 5 for heating, hot-end hydrogen which is separated from the hot end of the vortex tube 3 flows to the first hot-end bypass air path 10 and then is mixed with the heated cold-end hydrogen to form second temperature-adapting hydrogen which meets the thermal management demand instruction, and the second temperature-adapting hydrogen flows to the hydrogen consumption equipment.
Specifically:
when the thermal management demand instruction is a hydrogen temperature control fast charging mode of the high-pressure hydrogen tank 1, a first temperature-adaptive hydrogen gas is required to be supplied to the hydrogen consumption device, and step S3 is executed at this time, and the step S3 specifically includes the steps of:
as shown in fig. 1 and 5, the hydrogen consuming device is a high-pressure hydrogen tank 1, the high-pressure hydrogen source is a high-pressure hydrogen charging device (not shown in the drawing), the first quick charging valve 7, the first electromagnetic valve 12, the fourth electromagnetic valve 15 and the second quick charging valve 19 are opened, other valves are closed, the high-pressure hydrogen output by the high-pressure hydrogen charging device is input into the vortex tube 3 via the quick charging pipeline 6, the high-temperature hydrogen separated from the hot end of the vortex tube 3 flows into the mixing chamber 6 after being cooled along the hot end branch 8 through the hot end heat exchanger 4, the low-temperature hydrogen separated from the cold end of the vortex tube 3 flows into the mixing chamber 6 along the first cold end bypass pipeline 11, the low-temperature hydrogen and the cooled high-temperature hydrogen are mixed in the mixing chamber 6 to form first moderate-temperature hydrogen, and the first moderate-temperature hydrogen is conveyed into the high-pressure hydrogen tank 1 along the hydrogen outlet pipeline 16 and the straight flushing pipeline 18.
When the thermal management demand instruction is in the stack low-temperature fast start mode, a second temperature-adaptive hydrogen gas needs to be supplied to the hydrogen consumption device, and step S4 is executed, where the step S4 specifically includes the steps of:
as shown in fig. 2 and 5, the hydrogen consuming apparatus is a stack 2, the high-pressure hydrogen source is a high-pressure hydrogen tank 1, the first fast charging valve 7, the second electromagnetic valve 13, the third electromagnetic valve 14, the fifth electromagnetic valve 21 and the pressure reducing valve 22 are opened, and other valve elements are closed, the high-pressure hydrogen output by the high-pressure hydrogen tank 1 is input into the vortex tube 3 via the hydrogen delivery branch 27, the low-temperature hydrogen separated from the cold end of the vortex tube 3 flows into the mixing chamber 6 after being heated along the cold end branch 11 through the cold end heat exchanger 5, the high-temperature hydrogen separated from the hot end of the vortex tube 3 flows into the mixing chamber 6 along the first hot end bypass gas path 10, the high-temperature hydrogen and the heated low-temperature hydrogen are mixed in the mixing chamber 6 to form second moderate-temperature hydrogen, and the second moderate-temperature hydrogen is conveyed into the stack 2 along the hydrogen outlet pipeline 16 and the hydrogen inlet pipeline 25.
In addition, the thermal management demand instruction in the step S1 may be a normal operation mode of the electric pile or an shutdown purge mode of the electric pile, so as to realize the functions of adjusting the hydrogen gas inlet temperature and the air inlet temperature of the electric pile and adjusting the air and the hydrogen gas temperature of the purge electric pile. In particular, the method comprises the steps of,
when the thermal management demand command is in the pile normal operation mode, executing step S5:
s5, flowing out hydrogen gas from the high-pressure hydrogen tank 1 to the vortex tube 3; hot-end hydrogen which is separated from the hot end of the vortex tube 3 flows to the hot-end heat exchanger 4 for cooling, and cold-end hydrogen which is separated from the cold end of the vortex tube 3 flows to the second cold-end bypass air path 11 and then flows to the intercooler 34 for heat exchange with air for heating; and mixing the hot-end hydrogen after cooling and the cold-end hydrogen after heating to form third temperature-adapting hydrogen meeting the thermal management demand instruction, and flowing the cooled air to the electric pile 2.
As shown in fig. 3 and 5, the hydrogen consumption device is a stack 2, the high-pressure hydrogen source is a high-pressure hydrogen tank 1, the eighth electromagnetic valve 28, the first electromagnetic valve 12, the ninth electromagnetic valve 32, the fifth electromagnetic valve 21 and the pressure reducing valve 22 are opened, and other valves are closed, the high-pressure hydrogen output by the high-pressure hydrogen tank 1 is input into the vortex tube 3 via the hydrogen transmission branch 27, the high-temperature hydrogen separated from the hot end of the vortex tube 3 flows into the mixing chamber 6 after flowing through the hot end heat exchanger 4 along the hot end branch 8 for cooling, the low-temperature hydrogen separated from the cold end of the vortex tube 3 flows into the mixing chamber 6 after flowing through the intercooler 34 along the second cold end bypass air path 31, the low-temperature hydrogen and the cooled high-temperature hydrogen are mixed in the mixing chamber 6 to form third suitable-temperature hydrogen, and the third suitable-temperature hydrogen is transmitted to the stack 2 via the hydrogen output pipeline 16 and the hydrogen inlet pipeline 25, and simultaneously the low-temperature hydrogen flows into the mixing chamber 6 along the hydrogen inlet pipeline 33, and the air conditioning device meets the normal operation demand of the stack 2 when cooling the air and the air conditioning device is operated in the normal temperature-conditioning mode.
When the thermal management demand instruction is in the stack shutdown purge mode, executing step S6:
s6, flowing out hydrogen gas from the high-pressure hydrogen tank 1 to the vortex tube 3; cold-end hydrogen which is separated from the cold end of the vortex tube 3 flows to the cold-end heat exchanger 5 to heat, hot-end hydrogen which is separated from the hot end of the vortex tube 3 flows to the second hot-end bypass gas path 29 and then flows to the intercooler 34 to exchange heat with air to cool; and mixing the hot-end hydrogen after cooling and the cold-end hydrogen after heating to form fourth temperature-adaptive hydrogen meeting the thermal management demand instruction, and flowing the heated air to the electric pile 2.
As shown in fig. 4 and 5, the hydrogen consuming device is a galvanic pile 2, and the high-pressure hydrogen source is a high-pressure hydrogen tank 1. When the electric pile 2 is in a shutdown purging mode, the electric pile 2 is in a shutdown state, and air and hydrogen enter the electric pile to be purged and dehumidified. The eighth solenoid valve 28, the tenth fast charge valve 30, the second solenoid valve 13, the fifth solenoid valve 21 and the pressure reducing valve 22 are opened, other valves are closed, high-pressure hydrogen output by the high-pressure hydrogen tank 1 is input into the vortex tube 3 through the hydrogen conveying branch 27, low-temperature hydrogen separated from the cold end of the vortex tube 3 flows into the mixing chamber 6 after being heated by the cold end branch 9 through the cold end heat exchanger 5, high-temperature hydrogen separated from the hot end of the vortex tube 3 flows into the mixing chamber 6 after flowing through the intercooler 34 along the second hot end bypass air path 29, the high-temperature hydrogen and the low-temperature hydrogen after being heated are mixed in the mixing chamber 6 to form fourth moderate-temperature hydrogen, the fourth moderate-temperature hydrogen is conveyed to the electric pile 2 through the hydrogen outlet pipeline 16 and the hydrogen inlet pipeline 25, meanwhile, the high-temperature hydrogen releases heat to air in the air conveying air pipeline 33, the air is heated by the air inlet, the temperature of the electric pile 2 is adjusted, the temperature of the air and the hydrogen is adjusted, the air inlet and the temperature of the electric pile 2 is stopped when the electric pile is adjusted, and the air inlet temperature of the electric pile is stopped, and the blowing mode is controlled, and the blowing demand is satisfied.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that they are relative concepts and can be varied in many ways depending upon the application and placement, and that the use of such orientation terms should not be taken to limit the scope of protection of the present application.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims (9)

1. A hydrogen high pressure residual pressure utilization system, comprising:
the input end of the vortex tube is connected with a high-pressure hydrogen source;
one heat exchanger is connected with the hot end of the vortex tube through an air path and is configured to absorb heat, the other heat exchanger is connected with the cold end of the vortex tube through an air path and is configured to release heat, and each heat exchanger is connected with a bypass air path in parallel;
the mixing chamber is respectively connected with the two heat exchangers and the two bypass gas paths, and only one of the two heat exchangers and the bypass gas path which is not connected with the heat exchanger in parallel circulate so as to convey hydrogen into the mixing chamber to be mixed so as to supply hydrogen for hydrogen consuming equipment;
the heat exchanger connected with the hot end of the vortex tube is a hot end heat exchanger, the bypass gas circuit connected with the hot end heat exchanger in parallel is a first hot end bypass gas circuit, the heat exchanger connected with the cold end of the vortex tube is a cold end heat exchanger, and the bypass gas circuit connected with the cold end heat exchanger in parallel is a first cold end bypass gas circuit;
the hot end heat exchanger is also connected in parallel with a second hot end bypass air path, and the second hot end bypass air path is used for providing heating capacity for a heating demand end; when the hydrogen flows to the mixing chamber through the second hot end bypass gas circuit and the cold end heat exchanger respectively and then flows to the hydrogen consumption equipment, the hydrogen does not flow through the hot end heat exchanger, the first hot end bypass gas circuit and the first cold end bypass gas circuit; and/or the cold end heat exchanger is also connected in parallel with a second cold end bypass air path, and the second cold end bypass air path is used for providing refrigerating capacity for a cooling demand end; when the hydrogen flows to the mixing chamber through the second cold end bypass gas circuit and the hot end heat exchanger respectively and then flows to the hydrogen consumption equipment, the hydrogen does not flow through the cold end heat exchanger, the first hot end bypass gas circuit and the first cold end bypass gas circuit.
2. A hydrogen high pressure residual pressure utilizing system as defined in claim 1, wherein: the high-pressure hydrogen source is high-pressure hydrogen charging equipment, and the hydrogen consumption equipment is a high-pressure hydrogen tank.
3. A hydrogen high pressure residual pressure utilizing system as defined in claim 1, wherein:
the hydrogen consumption device is a galvanic pile, and the high-pressure hydrogen source is a high-pressure hydrogen tank; the vortex tube is fluidly connected to the high pressure hydrogen tank.
4. The hydrogen high pressure residual pressure utilization system according to claim 3, further comprising:
the air conveying pipeline is used for providing air for the electric pile and is provided with a compressor and an intercooler along the air conveying direction; when the intercooler is at the cooling demand end, the intercooler is not at the heating demand end; when the intercooler is the heating demand, it is not the cooling demand.
5. The hydrogen high pressure residual pressure utilizing system according to claim 4, wherein:
the high-pressure hydrogen tank is in fluid connection with the electric pile through a hydrogen transmission pipeline; and/or the number of the groups of groups,
the high-pressure hydrogen tank is provided with a direct charging pipeline, and the direct charging pipeline is provided with a valve element.
6. The hydrogen high-pressure residual pressure utilization system according to any one of claims 3 to 5, wherein:
the output end of the high-pressure hydrogen source is provided with a valve element; and/or the number of the groups of groups,
the input end of the hydrogen consumption device is provided with a valve element; and/or the number of the groups of groups,
the first cold end bypass air path, the first hot end bypass air path, the hot end branch provided with the hot end heat exchanger and the cold end branch provided with the cold end heat exchanger are respectively provided with a valve.
7. A method of thermal management based on the hydrogen high pressure residual pressure utilization system of any one of claims 1-6, comprising the steps of:
s1, acquiring a thermal management demand instruction;
s2, based on the thermal management demand instruction, executing step S3 or step S4:
s3, flowing out the hydrogen from the high-pressure hydrogen source to the vortex tube; the hot-end hydrogen flow which is separated from the hot end of the vortex tube flows to a heat exchanger which is configured to absorb heat for cooling, and the cold-end hydrogen flow which is separated from the cold end of the vortex tube flows to a bypass air path which is connected with the heat exchanger which is configured to release heat in parallel and then is mixed with the cooled hot-end hydrogen in the mixing chamber to form first temperature-adapting hydrogen which meets the thermal management demand instruction and flows to the hydrogen consumption equipment;
s4, flowing out the hydrogen from the high-pressure hydrogen source to the vortex tube; and then, the cold-end hydrogen flow which is separated from the cold end of the vortex tube flows to a heat exchanger which is configured to release heat for heating, the hot-end hydrogen flow which is separated from the hot end of the vortex tube flows to a bypass air path which is connected with the heat exchanger which is configured to absorb heat in parallel, and then, the bypass air path is mixed with the heated cold-end hydrogen in the mixing chamber to form second temperature-adapting hydrogen which meets the thermal management demand instruction, and the second temperature-adapting hydrogen flows to the hydrogen consumption equipment.
8. The method for thermal management of a hydrogen high pressure residual pressure utilizing system according to claim 7, wherein:
when the thermal management demand instruction is in the high-pressure hydrogen tank hydrogen temperature control fast charging mode, executing step S3, wherein the step S3 specifically includes the steps of:
the hydrogen flowing out of the high-pressure hydrogen charging equipment flows to the vortex tube; the hot-end hydrogen flow which is separated from the hot end of the vortex tube flows to a heat exchanger which is configured to absorb heat for cooling, and the cold-end hydrogen flow which is separated from the cold end of the vortex tube flows to a bypass air path which is connected with the heat exchanger which is configured to release heat in parallel and then is mixed with the cooled hot-end hydrogen in the mixing chamber to form a first temperature-adaptive hydrogen flow which meets the heat management demand instruction to a high-pressure hydrogen tank;
and/or the number of the groups of groups,
when the thermal management demand command is in the stack low-temperature fast start mode, executing step S4, wherein the step S4 specifically includes the steps of:
the hydrogen flowing out of the high-pressure hydrogen tank flows to the vortex tube; and then, the cold-end hydrogen flow which is separated from the cold end of the vortex tube flows to a heat exchanger which is configured to release heat for heating, and the hot-end hydrogen flow which is separated from the hot end of the vortex tube flows to a bypass air path which is connected with the heat exchanger which is configured to absorb heat in parallel and then is mixed with the heated cold-end hydrogen in the mixing chamber to form second temperature-adapting hydrogen which meets the heat management demand instruction and flows to the galvanic pile.
9. The method for thermal management of a hydrogen high pressure residual pressure utilizing system according to claim 8, wherein:
when the thermal management demand instruction is in a pile normal operation mode, executing the steps of:
s5, flowing out hydrogen in the high-pressure hydrogen tank to the vortex tube; the hot-end hydrogen which is separated from the hot end of the vortex tube flows to a heat exchanger configured to absorb heat to cool, and the cold-end hydrogen which is separated from the cold end of the vortex tube flows to an intercooler to heat exchange with air to heat; mixing the hot-end hydrogen after cooling and the cold-end hydrogen after heating to form third temperature-adapting hydrogen meeting the thermal management demand instruction, and flowing the cooled air to the electric pile;
and/or the number of the groups of groups,
when the thermal management demand instruction is in a stack shutdown purge mode, executing the steps of:
s6, flowing out hydrogen gas from the high-pressure hydrogen tank to the vortex tube; the cold-end hydrogen flow which is separated from the cold end of the vortex tube flows to a heat exchanger which is configured to release heat for heating, and the hot-end hydrogen which is separated from the hot end of the vortex tube flows to a second hot-end bypass gas path and then flows to an intercooler for heat exchange and cooling with air; and mixing the hot-end hydrogen after cooling and the cold-end hydrogen after heating to form fourth temperature-adaptive hydrogen which meets the thermal management demand instruction, and flowing the heated air to the electric pile.
CN202210257164.7A 2022-03-16 2022-03-16 Hydrogen high-pressure residual pressure utilization system and thermal management method thereof Active CN114719179B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210257164.7A CN114719179B (en) 2022-03-16 2022-03-16 Hydrogen high-pressure residual pressure utilization system and thermal management method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210257164.7A CN114719179B (en) 2022-03-16 2022-03-16 Hydrogen high-pressure residual pressure utilization system and thermal management method thereof

Publications (2)

Publication Number Publication Date
CN114719179A CN114719179A (en) 2022-07-08
CN114719179B true CN114719179B (en) 2024-02-06

Family

ID=82238492

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210257164.7A Active CN114719179B (en) 2022-03-16 2022-03-16 Hydrogen high-pressure residual pressure utilization system and thermal management method thereof

Country Status (1)

Country Link
CN (1) CN114719179B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019040757A (en) * 2017-08-25 2019-03-14 トヨタ自動車株式会社 Fuel cell system
CN209374567U (en) * 2019-02-22 2019-09-10 上海燃料电池汽车动力系统有限公司 A kind of cold boot of fuel cell system based on vortex tube heating
CN111490264A (en) * 2019-01-25 2020-08-04 空中客车德国运营有限责任公司 Fuel cell assembly, renewable fuel cell system and carrier
CN112128609A (en) * 2020-08-28 2020-12-25 浙大宁波理工学院 Novel hydrogenation precooling system
CN113471473A (en) * 2020-03-30 2021-10-01 现代自动车株式会社 Fluid filling system, nozzle device and receiver device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019040757A (en) * 2017-08-25 2019-03-14 トヨタ自動車株式会社 Fuel cell system
CN111490264A (en) * 2019-01-25 2020-08-04 空中客车德国运营有限责任公司 Fuel cell assembly, renewable fuel cell system and carrier
CN209374567U (en) * 2019-02-22 2019-09-10 上海燃料电池汽车动力系统有限公司 A kind of cold boot of fuel cell system based on vortex tube heating
CN113471473A (en) * 2020-03-30 2021-10-01 现代自动车株式会社 Fluid filling system, nozzle device and receiver device
CN112128609A (en) * 2020-08-28 2020-12-25 浙大宁波理工学院 Novel hydrogenation precooling system

Also Published As

Publication number Publication date
CN114719179A (en) 2022-07-08

Similar Documents

Publication Publication Date Title
CN111231618B (en) Vehicle thermal management system, control method thereof and vehicle
CN111231620B (en) Vehicle thermal management system, control method thereof and vehicle
CN111716987B (en) Thermal system, electric or hybrid vehicle and method for operating a thermal system
US11479079B2 (en) Circuit for the thermal management of a hybrid or electric vehicle
CN101614450B (en) Vehicular combination refrigerator bypass system and method
CN111231655B (en) Vehicle thermal management system, control method thereof and vehicle
CN110962532A (en) Thermal management system for vehicle
JP2020055343A (en) Heat management system of vehicle
CN111231772B (en) Vehicle thermal management system, control method thereof and vehicle
KR102299301B1 (en) Integrated thermal management circuit for vehicle
CN114030390B (en) Thermal management system of hybrid vehicle, control method of thermal management system and vehicle
CN113059980B (en) Integrated thermal management system and vehicle
KR101789031B1 (en) Tempering device
CN208842173U (en) Vehicle and its heat management system
CN111619307A (en) Energy comprehensive utilization system
US20240351394A1 (en) Vehicle heat pump system
US20230391160A1 (en) Thermal management system
JP4965414B2 (en) Temperature control of cathode inlet air flow for fuel cell systems
CN116901648A (en) Thermal management apparatus, thermal management system, and electric vehicle
CN111251807B (en) Whole car thermal management system and have its vehicle
CN114312397B (en) Charging thermal management system, charging equipment and charging method
CN114719179B (en) Hydrogen high-pressure residual pressure utilization system and thermal management method thereof
CN210652590U (en) Heating system for electric vehicle heat management
CN115742670A (en) Thermal management system for vehicle and vehicle
CN115805786A (en) Thermal management system for vehicle and vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant