CN113702010A - Hydrogenation station, test system and test method thereof, hydrogenation machine and station control device - Google Patents

Hydrogenation station, test system and test method thereof, hydrogenation machine and station control device Download PDF

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Publication number
CN113702010A
CN113702010A CN202010378901.XA CN202010378901A CN113702010A CN 113702010 A CN113702010 A CN 113702010A CN 202010378901 A CN202010378901 A CN 202010378901A CN 113702010 A CN113702010 A CN 113702010A
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China
Prior art keywords
hydrogen
test
pressure
valve
hydrogen storage
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Application number
CN202010378901.XA
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Chinese (zh)
Inventor
杨康
何广利
董文平
许壮
田中辉
赵月晶
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China Energy Investment Corp Ltd
National Institute of Clean and Low Carbon Energy
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China Energy Investment Corp Ltd
National Institute of Clean and Low Carbon Energy
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Application filed by China Energy Investment Corp Ltd, National Institute of Clean and Low Carbon Energy filed Critical China Energy Investment Corp Ltd
Priority to CN202010378901.XA priority Critical patent/CN113702010A/en
Publication of CN113702010A publication Critical patent/CN113702010A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature 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
    • F17C13/04—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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • 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
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • 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
    • 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
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • 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
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0439—Temperature
    • 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
    • F17C2250/0636—Flow or movement of content
    • 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
    • F17C2260/03—Dealing with losses
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The embodiment of the invention provides a hydrogenation station, a test system and a test method thereof, a hydrogenation machine and a station control device, and belongs to the field of clean energy. The hydrogenation station comprises a hydrogenation machine, and the test system comprises: the hydrogen storage device is used for storing hydrogen and is connected with the test container through the hydrogenation machine; the pressurizing device is used for pressurizing hydrogen provided by the hydrogen source and then outputting the pressurized hydrogen to the hydrogen storage device for storage; the test container is respectively connected with the input end of the pressurizing device and the hydrogenation machine, and a pressure reducing valve is arranged between the test container and the input end of the pressurizing device; and the detection system is used for detecting the parameters to be tested. By the technical scheme, the testing efficiency of the hydrogenation station and the hydrogenation machine can be improved, and the safety and the economical efficiency of the testing process are improved.

Description

Hydrogenation station, test system and test method thereof, hydrogenation machine and station control device
Technical Field
The invention relates to the field of clean energy, in particular to a hydrogenation station, a test system and a test method thereof, a hydrogenation machine and a station control device.
Background
The hydrogen energy has the advantages of high energy efficiency, wide sources, renewability, zero pollution of fuel products and the like, and is internationally recognized as a future green energy source. In recent years, hydrogen energy vehicles have been vigorously developed in many countries and regions including the united states, the day, the middle, the korea, and the european union, and hydrogen stations and related hydrogen energy infrastructures have been actively constructed. Among them, the safety of the control system of the hydrogen refueling station and the hydrogen refueling machine is critical to the operation of the hydrogen refueling station, so the completeness of the program for evaluating the hydrogen refueling station and the control system of the hydrogen refueling machine becomes particularly important. At present, before the hydrogenation station is formally operated, the station control of the hydrogenation station and the control system of a hydrogenation machine need to be tested. The conventional testing mode at present is to perform a leak detection pressure test on the hydrogenation machine before leaving a factory, and perform a field filling test on the hydrogenation station and the hydrogenation machine after the construction of the hydrogenation station is completed. In general, the completeness of programs of a hydrogen refueling station and a hydrogen refueling machine control system is tested by filling hydrogen into a vehicle-mounted hydrogen cylinder of a new energy automobile on site. By adopting the field filling test mode, more resources need to be coordinated and prepared, the safety risk is higher, the hydrogen consumption is larger, the test can be continued only when the next new energy automobile arrives after the single filling is finished, the test period is longer, the condition limitation is more, and the comprehensive test is difficult to achieve.
Disclosure of Invention
The invention aims to provide a hydrogenation station, a test system and a test method thereof, a hydrogenation machine and a station control device, so as to improve the test efficiency of the hydrogenation station and the hydrogenation machine and improve the safety and the economy of the test process.
In order to achieve the above object, in a first aspect of embodiments of the present invention, there is provided a test system for a hydrogen refueling station including a hydrogen refueling machine, the test system including: the hydrogen storage device is used for storing hydrogen and is connected with the test container through the hydrogenation machine; the pressurizing device is used for pressurizing hydrogen provided by the hydrogen source and then outputting the pressurized hydrogen to the hydrogen storage device for storage; the test container is respectively connected with the input end of the pressurizing device and the hydrogenation machine, and a pressure reducing valve is arranged between the test container and the input end of the pressurizing device; and the detection system is used for detecting the parameters to be tested.
Optionally, a first valve is arranged between the hydrogen storage device and the hydrogenation machine, a second valve is arranged between the hydrogenation machine and the test container, and the hydrogenation machine can control the first valve and the second valve to fill hydrogen in the hydrogen storage device into the test container.
Optionally, the hydrogen storage device comprises multiple stages of hydrogen storage units, each stage of hydrogen storage unit is connected with the hydrogenation machine through the corresponding first valve, and each stage of hydrogen storage unit comprises a plurality of hydrogen storage bottles.
Optionally, the hydrogen storage cylinder has a volume ranging from 52L to 200L, and the total volume of the hydrogen storage units per stage ranges from 500L to 1000L.
Optionally, the output pressure of the pressure reducing valve ranges from 15Mpa to 20 Mpa.
Optionally, the supercharging device has a displacement in the range 20kg/h to 60 kg/h.
Optionally, the test vessel has a volume in the range of 52L to 200L.
Optionally, a third valve is further provided between the test container and the input end of the pressurizing device.
Optionally, a pressure regulating valve is arranged in the hydrogenation machine, and the hydrogenation machine can control the pressure regulating valve to regulate the filling rate and the filling flow rate of the test container.
Optionally, the parameters to be tested include at least one of: a first hydrogen pressure in the test vessel, a first hydrogen temperature in the test vessel, a second hydrogen pressure in the hydrogen storage device, a second hydrogen temperature in the hydrogen storage device, a state of a first valve between the hydrogen storage device and the hydrogenation machine, and a state of a second valve between the hydrogenation machine and the test vessel.
Optionally, the parameters to be tested include the first hydrogen pressure and the first hydrogen temperature, and the detection system includes a first pressure sensor and a temperature sensor located inside the test container, where the first pressure sensor is configured to detect the first hydrogen pressure, and the temperature sensor is configured to detect the first hydrogen temperature.
Optionally, the parameter to be tested comprises the second hydrogen pressure, and the detection system comprises a second pressure sensor for detecting the second hydrogen pressure.
Optionally, the hydrogen storage device includes multiple stages of hydrogen storage units, and the detection system includes a plurality of second pressure sensors disposed corresponding to the hydrogen storage units, and the second pressure sensors are configured to detect hydrogen pressures in the corresponding hydrogen storage units.
Optionally, the hydrogen source comprises at least two groups of hydrogen supply cylinders capable of independently supplying hydrogen.
In a second aspect of an embodiment of the present invention, there is provided a test method based on the above test system for a hydrogen refueling station, the test method including: filling hydrogen in the hydrogen storage device to the test container through the hydrogenation machine; after the first hydrogen pressure in the testing container is determined to reach the target filling pressure, stopping filling hydrogen into the testing container, and recovering the hydrogen in the testing container into the hydrogen storage device through the pressure reducing valve and the pressure increasing device; and detecting parameters to be tested through the detection system, and determining a test result based on the parameters to be tested.
Optionally, a first valve is disposed between the hydrogen storage device and the hydrogenation machine, a second valve is disposed between the hydrogenation machine and the testing container, and the filling of hydrogen in the hydrogen storage device to the testing container by the hydrogenation machine includes: and opening the first valve and the second valve through the hydrogenation machine so as to fill hydrogen in the hydrogen storage device into the test container.
Optionally, the hydrogen storage device includes multiple stages of hydrogen storage units, each stage of hydrogen storage unit is connected to the hydrogenation machine via the corresponding first valve, and the opening of the first valve and the second valve by the hydrogenation machine includes: acquiring a second hydrogen pressure in each hydrogen storage unit; and opening the corresponding first valve according to the pressure of the second hydrogen.
Optionally, a third valve is further disposed between the test container and the input end of the pressurizing device, and the test method further includes: opening the third valve after determining that the first hydrogen pressure reaches a target fill pressure.
Optionally, the testing method further comprises: and determining that the test container is restored to a fillable state when the first hydrogen pressure is detected to drop to a target evacuation pressure.
In a third aspect of embodiments of the present invention, there is provided a hydrotreater for performing the test method described above.
In a fourth aspect of the embodiments of the present invention, a station control device of a hydrogen refueling station is provided, wherein the station control device is used for executing the test method.
In a fifth aspect of an embodiment of the present invention, there is provided a hydrogen refueling station including: the above test system for a hydrogen station; and the above-mentioned hydrogenation machine or station control device.
In the technical scheme, the station control device of the hydrogenation station and/or the control program of the hydrogenation machine can be tested by simulating the hydrogen filling process of the hydrogenation station, so that the safety of the hydrogenation station and the safety of the hydrogenation machine can be verified. By arranging the test container to replace a vehicle-mounted hydrogen cylinder of the new energy automobile, the test process can be independent of the new energy automobile, and therefore the test can be carried out in real time. Through being connected the test container with supercharging device's input, can be after the filling process, retrieve the hydrogen in the test container and carry out cyclic utilization in hydrogen storage device to avoid causing hydrogen extravagant. Through set up the relief pressure valve between test container and supercharging device's input, can reduce the temperature decline range of test container at the evacuation hydrogen in-process to the temperature of test container can resume faster after the hydrogen evacuation, so that in time begin the test of next cycle, and then improve the efficiency of continuous test, reduce test time. In addition, it can be understood that after the test container is filled with hydrogen, the internal pressure is high, great potential safety hazards exist when the hydrogen is directly discharged, and safety accidents in the hydrogen discharging process can be avoided by adopting the pressure reducing valve.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a block diagram schematically illustrating a test system for a hydrogen refueling station according to an embodiment of the present invention;
FIG. 2 is a simplified block diagram illustrating a current hydrogen station; and
fig. 3 is a block diagram illustrating a test system for a hydrogen refueling station according to an alternative embodiment of the present invention.
Description of the reference numerals
1 hydrogen source 2 pressure boosting device
3 hydrogen storage device 4 hydrogenation machine
5 test container RV1 relief valve
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Fig. 1 is a block diagram illustrating a test system for a hydrogen refueling station according to an embodiment of the present invention. As shown in fig. 1, embodiments of the present invention provide a test system for a hydrogen refueling station that may include a hydrogen refueling machine 4. The test system may include a hydrogen storage device 3, a pressurization device 2, a test vessel 5, and a detection system (not shown). Wherein, the hydrogen storage device 3 is used for storing hydrogen, and the hydrogen storage device 3 is connected with the test container 5 through the hydrogenation machine 4. The pressurizing device 2 is used for pressurizing the hydrogen provided by the hydrogen source 1 and outputting the pressurized hydrogen to the hydrogen storage device 3 for storage. The test container 5 is respectively connected with the input end of the pressure increasing device 2 and the hydrogenation machine 4, wherein a pressure reducing valve RV1 is arranged between the test container 5 and the input end of the pressure increasing device 2. The detection system is used for detecting the parameters to be tested.
Specifically, to better explain the technical solution of the embodiment of the present invention, the structure and the test mode of the current hydrogen station are briefly introduced first. Fig. 2 shows a simplified structural block diagram of the present hydrogen station. As shown in fig. 2, the current hydrogen filling station needs to supply hydrogen through a long tube trailer and store the hydrogen in three hydrogen storage tanks after being pressurized by a compressor. The three hydrogen storage tanks can independently provide hydrogen for the new energy automobile, and in the process of outputting the hydrogen outwards, the hydrogen pressure in the three hydrogen storage tanks can be dynamically changed, so that three pressure levels of low, medium and high in dynamic sequencing are formed. When a new energy automobile is arranged in the hydrogenation station for hydrogenation, each valve on the hydrogen transmission path can be controlled by the hydrogenation machine or the station control device of the hydrogenation station according to a preset filling control program so as to fill the hydrogen in the hydrogen storage tank into a vehicle-mounted hydrogen cylinder of the new energy automobile. In the process of filling hydrogen into the new energy automobile, the completeness of a station control device of a hydrogen filling station and/or a control program of a hydrogen filling machine can be tested by detecting corresponding parameters to be tested, namely whether the control program can run completely and correctly. The parameters to be tested can include the hydrogen temperature and hydrogen pressure in the hydrogen storage tank, the hydrogen temperature and hydrogen pressure in the vehicle-mounted hydrogen cylinder, the states of all valves on the hydrogen transmission path and the like. However, in the current testing mode, the test can be performed only when the new energy automobile is hydrogenated at the hydrogenation station, the real-time test cannot be realized, when the cycle test needs to be performed for multiple times, the whole testing period is very long, and the test is performed in the process of filling hydrogen into the new energy automobile on site, so that higher safety risk exists.
To this end, the embodiment of the invention provides a test system for a hydrogen filling station, which can simulate hydrogen filling processes of 35MPa and 70MPa hydrogen filling stations. In particular, the test system may include a hydrogen storage device 3, a pressurization device 2, a test vessel 5, and a detection system. Before the test, the hydrogen from the hydrogen source 1 may be first pressurized to a predetermined pressure (e.g., 45MPa or 87.5MPa) by the pressurizing device 2 and then stored in the hydrogen storage device 3. When the test is carried out, the hydrogen in the hydrogen storage device 3 is filled into the test container 5 through the hydrogenation machine 4, so that the hydrogen filling process of the hydrogenation station is simulated. After the hydrogen pressure in the test vessel 5 (i.e., the first hydrogen pressure) reaches the target filling pressure, the filling of hydrogen into the test vessel 5 is stopped, and the hydrogen in the test vessel 5 is recovered to the hydrogen storage device 3 through the pressure reducing valve RV1 and the pressure increasing device 2. In the process of filling hydrogen, the corresponding parameters to be tested can be detected through the detection system, and the test result is determined based on the detected parameters to be tested, so as to determine whether the station control device of the hydrogen filling station and/or the control program sequence of the hydrogen filling machine can completely and correctly run in the process of filling hydrogen.
Therefore, by simulating the hydrogen filling process of the hydrogenation station, the station control device of the hydrogenation station and/or the control program of the hydrogenation machine can be tested, so that the safety of the hydrogenation station and the safety of the hydrogenation machine can be verified. By arranging the test container to replace a vehicle-mounted hydrogen cylinder of the new energy automobile, the test process can be independent of the new energy automobile, and therefore the test can be carried out in real time. Through being connected the test container with supercharging device's input, can be after the filling process, retrieve the hydrogen in the test container and carry out cyclic utilization in hydrogen storage device to avoid causing hydrogen extravagant. Through set up the relief pressure valve between test container and supercharging device's input, can reduce the temperature decline range of test container at the evacuation hydrogen in-process to the temperature of test container can resume faster after the hydrogen evacuation, so that in time begin the test of next cycle, and then improve the efficiency of continuous test, reduce test time. In addition, it can be understood that after the test container is filled with hydrogen, the internal pressure is high, great potential safety hazards exist when the hydrogen is directly discharged, and safety accidents in the hydrogen discharging process can be avoided by adopting the pressure reducing valve.
It should be noted that the test system for the hydrogen filling station can be an independent test system, so that the hydrogen filling machine and/or the station control device of the hydrogen filling station can complete the test before leaving the factory, thereby not only avoiding the safety risk existing in the field filling test, but also getting rid of the restrictions of a plurality of conditions of the field filling test, and further carrying out more comprehensive test; the test system can also be arranged in the hydrogenation station in parallel with the hydrogen filling system of the hydrogenation station, so that the hydrogenation machine and/or the station control device of the hydrogenation station can be tested in the operation process of the hydrogenation station; in addition, the test system can be obtained by improving a hydrogen filling system of the hydrogen filling station, so that the hydrogen filling system can be used for filling hydrogen of a new energy automobile and can also be used for testing a hydrogen adding machine and/or a station control device of the hydrogen filling station.
Fig. 3 is a block diagram illustrating a test system according to an alternative embodiment of the present invention. As shown in fig. 3, in the alternative embodiment, the hydrogen source 1 may include a plurality of hydrogen supply cylinder groups capable of supplying hydrogen independently, for example, the hydrogen source 1 may include a hydrogen supply cylinder group H2-0 and a hydrogen supply cylinder group H2-1, the continuity of hydrogen supply of the hydrogen source 1 may be improved by the redundant design of the plurality of hydrogen supply cylinder groups, and when one hydrogen supply cylinder group supplies hydrogen, the other hydrogen supply cylinder group may be refilled by a tube trailer. The hydrogen supply cylinder group H2-0 and the hydrogen supply cylinder group H2-1 can be respectively connected with the supercharging device 2 through a valve AOV-B4-0 and a valve AOV-B4-1, a pressure sensor P1 is arranged between the hydrogen supply cylinder group H2-0 and the valve AOV-B4-0, and a pressure sensor P2 is arranged between the hydrogen supply cylinder group H2-1 and the valve AOV-B4-1. The pressurizing device 2 can pressurize the hydrogen in the hydrogen supply cylinder group and then deliver the pressurized hydrogen to the hydrogen storage device 3, the pressurizing device 2 can be a compressor or a booster pump, the pressurizing device 2 can be a low-displacement pressurizing device, for example, the displacement of the pressurizing device 2 can range from 20kg/h to 60kg/h, and more specifically, the displacement of the pressurizing device 2 can be 50 kg/h. It will be appreciated that the typical capacity of the pressurising means currently used in hydroprocessing stations is typically 100kg/h, and the use of a low capacity pressurising means in the test system may reduce the performance requirements for other associated equipment in the test system. The hydrogen storage device 3 may include a plurality of stages of hydrogen storage units, and each stage of hydrogen storage unit may include a plurality of hydrogen storage bottles. For example, the hydrogen storage device 3 may include low, medium and high grade hydrogen storage units, i.e., a hydrogen storage unit E1, a hydrogen storage unit E2 and a hydrogen storage unit E3. Each stage of hydrogen storage unit is connected with the hydrogenation machine 4 through a corresponding first valve, for example, the hydrogen storage unit E1, the hydrogen storage unit E2 and the hydrogen storage unit E3 can be connected with the hydrogenation machine 4 through a first valve AOV-B1, a first valve AOV-B2 and a first valve AOV-B3. A pressure sensor P6 is provided between the hydrogen storage device 3 and the hydrogenation unit 4. The pressurizing means 2 may be connected with the hydrogen storage unit E1, the hydrogen storage unit E2, and the hydrogen storage unit E3 via the valve AOV-201, the valve AOV-202, and the valve AOV-203, respectively, to supply hydrogen gas to the hydrogen storage unit E1, the hydrogen storage unit E2, and the hydrogen storage unit E3. A second valve AOV-B5 may be provided between the hydrogenation machine 4 and the test vessel 5, and the hydrogenation machine 4 can control each of the first valve and the second valve to fill the hydrogen gas in the hydrogen storage device 3 into the test vessel 5. Wherein, a filter F and a one-way valve CV1 can be arranged between the test container 5 and the hydrogenation machine 4.
Alternatively, each stage of hydrogen storage unit may comprise a plurality of hydrogen storage cylinders (e.g., 3 hydrogen storage cylinders), and each hydrogen storage cylinder may be provided with a valve (e.g., hand valves M-101, M-102, M-103, M-201, M-202, M-203, M-301, M-302, M-303). Wherein the total volume of each stage of hydrogen storage unit can be in the range of 0.5m3To 1m3The volume of each hydrogen storage cylinder may range from 52L to 200L, for example the volume of each hydrogen storage cylinder may be 140L. The test container 5 may have a volume in the range of 52L to 200L, for example the test container 5 may also have a volume of 140L. It will be appreciated that current hydrogen stations typically take 3 to 8 meters inside the station3The hydrogen storage tank stores hydrogen, and the capacity of the vehicle-mounted hydrogen cylinders of some new energy vehicles is as high as 400L, so that when a hydrogen filling system of a hydrogen filling station is adopted to carry out field filling tests, a large amount of hydrogen is consumed in each test. In the test system of the optional embodiment, the hydrogen storage unit with smaller volume is adopted to replace the hydrogen storage tank in the hydrogen filling station, and the test container 5 with smaller volume is adopted to replace the hydrogen cylinder on the vehicle of the new energy automobile, so that the situation that every time the hydrogen cylinder on the vehicle is replaced by the hydrogen storage unit with smaller volume can be reducedHydrogen consumption for the test. Through dividing hydrogen storage unit into a plurality of hydrogen storage bottles that are close with test container 5 capacity, can be more nimble carry out the collocation of hydrogen supply bottle to adapt to different test demands. The test container 5 is connected with the input end of the pressurizing device 2 through a hydrogen recovery pipeline, a third valve MV-11 and a pressure reducing valve RV1 can be arranged on the hydrogen recovery pipeline, the third valve MV-11 is used for controlling the connection and disconnection of the hydrogen recovery pipeline, and the pressure reducing valve RV1 is used for reducing the pressure of hydrogen discharged from the test container 5. Wherein, the output pressure of the pressure reducing valve RV1 can be in the range of 15MPa to 20 MPa. For example, when the output pressure of the pressure reducing valve RV1 is 20MPa, the pressure of the hydrogen gas discharged from the test container can be reduced to 20MPa after passing through the pressure reducing valve, and the hydrogen gas can be pressurized by the pressurizing device 2 and then recovered in the hydrogen storage device 3.
The detection system may comprise various types of sensors and detection means for detecting different types of parameters to be tested. Wherein the parameters to be tested may include one or more of: the hydrogen pressure in the test container 5 (i.e., the first hydrogen pressure), the hydrogen temperature in the test container 5 (i.e., the first hydrogen temperature), the hydrogen pressure in the hydrogen storage device 3 (i.e., the second hydrogen pressure), the hydrogen temperature in the hydrogen storage device 3 (i.e., the second hydrogen temperature), the valve state between the hydrogen storage device 3 and the hydrogenation machine 4 (i.e., the state of the first valve), and the valve state between the hydrogenation machine 4 and the test container 5 (i.e., the state of the second valve). In order to detect the above-mentioned parameters to be tested, the detection system may include a first pressure sensor P7 and a temperature sensor T1 located inside the test container 5, the first pressure sensor P7 is used for detecting the first hydrogen pressure inside the test container 5, the temperature sensor T1 is used for detecting the first hydrogen temperature inside the test container 5, and the first pressure sensor P7 and the temperature sensor T1 may be disposed inside the test container 5, so as to more accurately detect the first hydrogen pressure and the first hydrogen temperature inside the test container 5. The sensing system may further include a second pressure sensor for sensing a second hydrogen pressure within the hydrogen storage device 3, and when the hydrogen storage device 3 includes a plurality of stages of hydrogen storage units, the sensing system may be provided with a plurality of second pressure sensors (e.g., second pressure sensors P3, P4, and P5), each for sensing a pressure within a corresponding hydrogen storage unit. The hydrogenation machine 4 can be internally provided with a pressure regulating valve, a flowmeter, a safety valve, a stop valve and other devices, wherein the hydrogenation machine 4 can control the pressure regulating valve to regulate the filling rate and the filling flow when the test container 5 is filled with hydrogen, so that the test container 5 is prevented from being damaged due to too fast temperature rise. In addition, the hydrogenation unit can detect the amount of hydrogen to be injected into the test container 5 through a flow meter.
The test system may also include a hydrogen vent line and valves AOV-B6, AOV-B7, and MV-10 located on the hydrogen vent line. When it is desired to vent the hydrogen gas from the test system, the hydrogen gas can be vented through the vent by opening one or more of valves AOV-B6, AOV-B7, and MV-10.
In the test, the hydrogenation unit 4 can detect the hydrogen pressures (i.e. the second hydrogen pressures) in the corresponding hydrogen storage units E1, E2 and E3 through the second pressure sensors P3, P4 and P5, respectively. Subsequently, the hydrogenation machine 4 controls the respective valves of the first valves AOV-B1, AOV-B2 and AOV-B3 to open according to a preset filling control program and the current second hydrogen pressure of the hydrogen storage units E1, E2 and E3, and opens the second valve AOV-B5 to fill hydrogen into the test vessel 5. The hydrogenation machine 4 can control the filling rate and the filling flow rate through an internal pressure regulating valve, wherein the maximum flow rate of the hydrogenation machine 4 can be 3.6 kg/min. The hydrogen pressure in the test container 5 may be detected by the first pressure sensor P7, and after it is determined that the first hydrogen pressure in the test container 5 reaches the target charging pressure, the hydrogenation machine 4 opens the third valve MV11 and the pressurization device 2, and adjusts the pressure reducing valve RV1 to 20MPa to recover the hydrogen in the test container 5 to the hydrogen storage device 3. In the case where it is detected that the first hydrogen gas pressure in the test container 5 has dropped to the target evacuation pressure during evacuation, it can be determined that the test container 5 is restored to the refillable state, so that the next test can be started. Generally, the first hydrogen pressure within the test vessel 5 may be reduced to the target evacuation pressure after about 1 hour or so after the pressurizing device 2 is turned on. Wherein, the value range of the target filling pressure can be 35MPa-42MPa, and the value range of the target emptying pressure can be 0.5MPa-5 MPa.
In the process of filling hydrogen, the hydrogenation machine 4 can obtain the first hydrogen pressure and the first hydrogen temperature in the test container 5 and the second hydrogen pressure in the hydrogen storage device 3 from the first pressure sensor P7, the temperature sensor T1 and the second pressure sensors P3, P4 and P5, and determine parameters such as the amount of hydrogen to be filled and the filling time through a flow meter and a timer inside the hydrogenation machine 4, and can detect state parameters of relevant valves. Through the acquired parameters, whether the hydrogen filling process is normal can be determined, and the completeness of the control program of the hydrogenation machine is further verified.
It will be understood that in other hydrogen stations, some or all of the functions described above as being performed by the hydrogenation engine may also be performed by the station control device of the hydrogen station, and that the tests for the hydrogen station and the hydrogenation engine may be performed by the hydrogenation engine and may also be performed by the station control device of the hydrogen station.
Accordingly, in one embodiment of the invention, a hydrogenation machine is also provided, which is used for carrying out the above test method. In another embodiment of the invention, a station control device of a hydrogen filling station is further provided, and the station control device is used for executing the test method. In addition, an embodiment of the present invention also provides a hydrogen refueling station, which may include: the above test system for a hydrogen station; and the above-mentioned hydrogenation machine or station control device.
While the invention has been described in detail with reference to the drawings, the invention is not limited to the details of the embodiments, and various simple modifications can be made within the technical spirit of the embodiments of the invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention will not be described separately for the various possible combinations.
Those skilled in the art will appreciate that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes instructions for causing a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the idea of the embodiments of the present invention.

Claims (22)

1. A test system for a hydrogen refueling station, the hydrogen refueling station including a hydrogen refueling machine, the test system comprising:
the hydrogen storage device is used for storing hydrogen and is connected with the test container through the hydrogenation machine;
the pressurizing device is used for pressurizing hydrogen provided by the hydrogen source and then outputting the pressurized hydrogen to the hydrogen storage device for storage;
the test container is respectively connected with the input end of the pressurizing device and the hydrogenation machine, and a pressure reducing valve is arranged between the test container and the input end of the pressurizing device; and
and the detection system is used for detecting the parameters to be tested.
2. The test system of claim 1, wherein a first valve is disposed between the hydrogen storage device and the hydrogenation engine, and a second valve is disposed between the hydrogenation engine and the test vessel, the hydrogenation engine being capable of controlling the first valve and the second valve to fill hydrogen gas in the hydrogen storage device to the test vessel.
3. The testing system of claim 2, wherein the hydrogen storage device comprises a plurality of stages of hydrogen storage units, each stage of hydrogen storage units is connected with the hydrogenation machine via the corresponding first valve, and each stage of hydrogen storage units comprises a plurality of hydrogen storage bottles.
4. The testing system of claim 3, wherein the hydrogen storage cylinder has a volume ranging from 52L to 200L, and the total volume of the hydrogen storage units of each stage ranges from 500L to 1000L.
5. The test system of claim 1, wherein the output pressure of the pressure relief valve ranges from 15Mpa to 20 Mpa.
6. The test system of claim 1, wherein the booster device has a displacement in the range of 20kg/h to 60 kg/h.
7. The testing system of claim 1, wherein the test container has a volume in a range of 52L to 200L.
8. The test system of claim 1, further comprising a third valve between the test vessel and the input of the pressurizing device.
9. The testing system of claim 1 or 2, wherein a pressure regulating valve is provided within the hydrogenator, the hydrogenator being controllable to regulate the fill rate and fill flow to the test vessel.
10. The test system of claim 1, wherein the parameters to be tested include at least one of:
a first hydrogen pressure in the test vessel, a first hydrogen temperature in the test vessel, a second hydrogen pressure in the hydrogen storage device, a second hydrogen temperature in the hydrogen storage device, a state of a first valve between the hydrogen storage device and the hydrogenation machine, and a state of a second valve between the hydrogenation machine and the test vessel.
11. The testing system of claim 10, wherein the parameters to be tested comprise the first hydrogen pressure and the first hydrogen temperature, and wherein the detection system comprises a first pressure sensor and a temperature sensor located inside the test vessel, the first pressure sensor being configured to detect the first hydrogen pressure, and the temperature sensor being configured to detect the first hydrogen temperature.
12. The test system of claim 10, wherein the parameter to be tested comprises the second hydrogen pressure, and the detection system comprises a second pressure sensor for detecting the second hydrogen pressure.
13. The testing system of claim 12, wherein the hydrogen storage device comprises a plurality of stages of hydrogen storage units, and the detection system comprises a plurality of second pressure sensors disposed corresponding to the hydrogen storage units, the second pressure sensors being configured to detect hydrogen pressure within the corresponding hydrogen storage units.
14. The testing system of claim 1, wherein the hydrogen source comprises at least two groups of hydrogen supply cylinders capable of independently supplying hydrogen.
15. A testing method of a testing system for a hydrogen refueling station based on any one of claims 1 to 14, characterized in that the testing method comprises:
filling hydrogen in the hydrogen storage device to the test container through the hydrogenation machine;
after the first hydrogen pressure in the testing container is determined to reach the target filling pressure, stopping filling hydrogen into the testing container, and recovering the hydrogen in the testing container into the hydrogen storage device through the pressure reducing valve and the pressure increasing device; and
and detecting parameters to be tested through the detection system, and determining a test result based on the parameters to be tested.
16. The method of claim 15, wherein a first valve is disposed between the hydrogen storage device and the hydrogenation machine, a second valve is disposed between the hydrogenation machine and the test container, and the hydrogen gas in the hydrogen storage device is filled into the test container through the hydrogenation machine, and the method comprises:
and opening the first valve and the second valve through the hydrogenation machine so as to fill hydrogen in the hydrogen storage device into the test container.
17. The method for testing according to claim 16, wherein the hydrogen storage device comprises a plurality of stages of hydrogen storage units, each stage of hydrogen storage unit is connected with the hydrogenation machine through the corresponding first valve, and the opening of the first valve and the second valve by the hydrogenation machine comprises:
acquiring a second hydrogen pressure in each hydrogen storage unit;
and opening the corresponding first valve according to the pressure of the second hydrogen.
18. The method of claim 15, further comprising providing a third valve between the test vessel and the input of the pressurizing device, the method further comprising:
opening the third valve after determining that the first hydrogen pressure reaches a target fill pressure.
19. The testing method of claim 15, further comprising:
and determining that the test container is restored to a fillable state when the first hydrogen pressure is detected to drop to a target evacuation pressure.
20. A hydrogenation machine for carrying out the test method according to any one of claims 15 to 19.
21. A station control device for a hydrogen station, characterized in that the station control device is adapted to perform the test method according to any one of claims 15 to 19.
22. A hydrogen station, characterized in that the hydrogen station comprises:
a test system for a hydrogen station according to any one of claims 1 to 14; and
the hydrotreater of claim 20 or station control unit of claim 21.
CN202010378901.XA 2020-05-07 2020-05-07 Hydrogenation station, test system and test method thereof, hydrogenation machine and station control device Pending CN113702010A (en)

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