WO2020057073A1 - 加氢站控制系统、方法以及加氢站 - Google Patents

加氢站控制系统、方法以及加氢站 Download PDF

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Publication number
WO2020057073A1
WO2020057073A1 PCT/CN2019/078467 CN2019078467W WO2020057073A1 WO 2020057073 A1 WO2020057073 A1 WO 2020057073A1 CN 2019078467 W CN2019078467 W CN 2019078467W WO 2020057073 A1 WO2020057073 A1 WO 2020057073A1
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Prior art keywords
pressure
storage tank
compressor
storage
hydrogen
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PCT/CN2019/078467
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English (en)
French (fr)
Inventor
何广利
张峰
许壮
杨康
Original Assignee
国家能源投资集团有限责任公司
北京低碳清洁能源研究所
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Application filed by 国家能源投资集团有限责任公司, 北京低碳清洁能源研究所 filed Critical 国家能源投资集团有限责任公司
Priority to EP19862332.4A priority Critical patent/EP3855061A4/en
Priority to KR1020217011857A priority patent/KR102511658B1/ko
Priority to JP2021515547A priority patent/JP7304941B2/ja
Priority to US17/278,599 priority patent/US20210356079A1/en
Publication of WO2020057073A1 publication Critical patent/WO2020057073A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • 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
    • F17C13/002—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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/002—Automated filling apparatus
    • F17C5/007—Automated filling apparatus for individual gas tanks or containers, e.g. in vehicles
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
    • F17C2205/0142—Two or more vessels characterised by the presence of fluid connection between vessels bundled in parallel
    • 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
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/036—Very high pressure, i.e. above 80 bars
    • 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
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0171—Arrangement
    • F17C2227/0185—Arrangement comprising several 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/043—Methods for emptying or filling by pressure cascade
    • 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
    • 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
    • F17C2250/07—Actions triggered by measured parameters
    • F17C2250/072—Action when predefined value is reached
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/025—Reducing transfer time
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/063—Fluid distribution for supply of refueling stations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/065—Fluid distribution for refueling vehicle fuel tanks
    • 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
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground
    • F17C2270/0139—Fuel stations
    • 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
    • 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

Definitions

  • the present invention relates to a hydrogen refueling station, and in particular, to a hydrogen refueling station control system, method, and hydrogen refueling station.
  • Hydrogen has the advantages of high energy efficiency, wide sources, renewables, and zero pollution from combustion products, and is internationally recognized as the green energy of the future. In recent years, many countries and regions, including the United States, Japan, China, South Korea, and the European Union, have been vigorously developing hydrogen vehicles, actively building hydrogen refueling stations, and implementing related hydrogen energy infrastructure. Hydrogen has become an important application direction in the field of new energy. The hydrogen is filled into the fuel cell vehicle by a hydrogenation station hydrogenation machine, and stored in a high-pressure hydrogen bottle in the vehicle.
  • hydrogen refueling stations generally use a compressor-storage tank structure, which uses a compressor to compress and inflate hydrogen into the storage tank.
  • a compressor-storage tank structure which uses a compressor to compress and inflate hydrogen into the storage tank.
  • For a common 35MPa hydrogenation station set up three 45MPa storage tanks to supply hydrogen to the 35MPa hydrogenator, and a 45MPa compressor to inflate and pressurize three 45MPa storage tanks;
  • a common 70MPa hydrogenation station set three 87.5MPa
  • the storage tank supplies hydrogen to a 70 MPa hydrogenator, and one 87.5 MPa compressor inflates and pressurizes three 87.5 MPa storage tanks.
  • the use of 87.5 MPa compressors to inflate and pressurize three 87.5 MPa storage tanks requires high requirements for 87.5 MPa compressors. At the same time, running 87.5 MPa compressors throughout the process will also generate more power consumption.
  • the purpose of the embodiments of the present invention is to provide a hydrogenation station control system, method and hydrogenation station.
  • the hydrogenation station control system, method and hydrogenation station can save the cost of the compressor and reduce the power consumption.
  • an embodiment of the present invention provides a hydrogenation station control system, which includes a first compressor, a second compressor, a first storage tank, a detector, and a controller, wherein the first compression
  • the exhaust pressure of the engine is less than the storage pressure of the first storage tank
  • the discharge pressure of the second compressor is greater than or equal to the storage pressure of the first storage tank
  • the first compressor and the first compressor Two compressors are connected to the first storage tank, and the detector is used to detect the pressure of the first storage tank;
  • the controller is used to: control the first compressor to inflate and pressurize the first storage tank;
  • the second compressor is controlled to inflate and pressurize the first storage tank.
  • the system further includes a second storage tank, and an exhaust pressure of the first compressor is greater than or equal to a storage pressure of the second storage tank, and the first compressor and the second compressor are further connected
  • the detector is further configured to detect the pressure of the second storage tank
  • the controller is further configured to: control the first compressor to inflate and pressurize the second storage tank;
  • the second compressor is controlled to inflate and pressurize the second storage tank.
  • the number of the first storage tank is one and the number of the second storage tank is two.
  • the system further includes: a first hydrogenator for hydrogenating a hydrogen storage bottle of a user using hydrogen, wherein the gas storage pressure of the second storage tank is less than that of the first hydrogenator Injection pressure, the gas storage pressure of the first storage tank is greater than or equal to the filling pressure of the first hydrogenation machine, the first storage tank and the second storage tank are connected to the first hydrogenation machine, so
  • the detector is also used to detect the pressure of the hydrogen storage bottle; the controller is used to: control the second storage tank to supply hydrogen to the first hydrogenator; the pressure at the hydrogen storage bottle is equal to a third When the pressure is preset, the first storage tank is controlled to supply hydrogen to the first hydrogenator.
  • the system further includes: a second hydrogenation machine, an exhaust pressure of the second storage tank is greater than or equal to a filling pressure of the second hydrogenation machine, the first storage tank and the second storage tank
  • the tank is connected to the second hydrogenator, and the controller is further configured to control the second storage tank to provide hydrogen to the second hydrogenator; the pressure in the hydrogen storage bottle is equal to a fourth preset pressure At that time, the first storage tank is controlled to supply hydrogen to the second hydrogenator.
  • the exhaust pressure of the first compressor is 45 MPa
  • the exhaust pressure of the second compressor is 87.5 MPa
  • the storage pressure of the first storage tank is 87.5 MPa
  • the second storage tank The gas storage pressure is 45MPa.
  • the hydrogenation pressure of the first hydrogenation machine is 70 MPa, and the hydrogenation pressure of the second hydrogenation machine is 35 MPa.
  • An embodiment of the present invention also provides a method for controlling a hydrogenation station.
  • the method uses a first compressor, a second compressor, and a first storage tank, wherein an exhaust pressure of the first compressor is less than the first storage tank.
  • the storage pressure of the tank, and the exhaust pressure of the second compressor is greater than or equal to the storage pressure of the first storage tank.
  • the method includes: detecting the pressure of the first storage tank; and controlling the first compressor Inflating and pressurizing the first storage tank; when the pressure of the first storage tank is equal to a first preset pressure, controlling the second compressor to inflate and pressurize the first storage tank.
  • the method further uses a second storage tank, and the exhaust pressure of the first compressor is greater than or equal to the storage pressure of the second storage tank, and the method further includes: detecting the pressure of the second storage tank; Controlling the first compressor to inflate and pressurize the second storage tank; and when the pressure of the second storage tank is equal to a second preset pressure, controlling the second compressor to inflate the second storage tank Pressurize.
  • the method further uses a first hydrogenator for hydrogenating a hydrogen storage bottle of a user using hydrogen, wherein the gas storage pressure of the second storage tank is less than the filling of the first hydrogenator Pressure, the gas storage pressure of the first storage tank is greater than or equal to the filling pressure of the first hydrogenator, the method includes: detecting the pressure of the hydrogen storage bottle; controlling the second storage tank to be the first A hydrogenator provides hydrogen; when the pressure of the hydrogen storage bottle is equal to a third preset pressure, controlling the first storage tank to supply hydrogen to the first hydrogenator.
  • the method further uses a second hydrogenation machine, and the exhaust pressure of the second storage tank is greater than or equal to the filling pressure of the second hydrogenation machine.
  • the method further includes: controlling the second storage tank to be The second hydrogenator provides hydrogen; and when the pressure of the hydrogen storage bottle is equal to a fourth preset pressure, controlling the first storage tank to supply hydrogen to the second hydrogenator.
  • An embodiment of the present invention further provides a hydrogenation station, which includes the hydrogenation station control system described above.
  • An embodiment of the present invention further provides a machine-readable storage medium, and the machine-readable storage medium stores instructions that cause the machine to execute the hydrogen station control method described above.
  • An embodiment of the present invention also provides a processor for running a program for running to execute the method for controlling a hydrogenation station described above.
  • the hydrogenation station control system includes: a first compressor, a second compressor, a first storage tank, a detector, and a controller.
  • the detector is used to detect the pressure of the first storage tank
  • the controller is used to perform the following control: For the first storage tank with a larger gas storage pressure, the first compressor with a lower exhaust pressure is first charged and pressurized. When the pressure of the first storage tank is equal to the first preset pressure, a second compressor with a higher exhaust pressure is used for inflation and pressurization, and a second compressor with a smaller exhaust volume can be provided to save the cost of the compressor. And reduce power consumption.
  • FIG. 1 is a schematic structural diagram of a hydrogenation station control system according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a hydrogenation station control system according to another embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a hydrogenation station control system according to another embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a hydrogenation station control system according to another embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a hydrogenation station control system according to another embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for controlling a hydrogen refueling station according to an embodiment of the present invention
  • FIG. 7 is a flowchart of a method for controlling a hydrogenation station according to another embodiment of the present invention.
  • FIG. 8 is a flowchart of a method for controlling a hydrogen refueling station according to another embodiment of the present invention.
  • FIG. 9 is a flowchart of a method for controlling a hydrogenation station according to another embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a hydrogenation station control system according to an embodiment of the present invention.
  • the system includes: a first compressor 101, a second compressor 102, a first storage tank 201, a detector, and a controller, wherein an exhaust pressure of the first compressor 101 is less than the exhaust pressure
  • the storage pressure of the first storage tank 201 and the discharge pressure of the second compressor 102 are greater than or equal to the storage pressure of the first storage tank 201.
  • the first compressor 101 and the second compressor 102 The first storage tank 201 is connected, the detector is used to detect the pressure of the first storage tank 201, and the controller is used to control the first compressor 101 to inflate and pressurize the first storage tank 201 ; When the pressure of the first storage tank 201 is equal to a first preset pressure, controlling the second compressor 102 to inflate and pressurize the first storage tank 201.
  • the hydrogenation station uses two compressors with different exhaust pressures to compress the hydrogen gas, that is, the first compressor 101 with a lower exhaust pressure and the second compressor 102 with a higher exhaust pressure.
  • the exhaust pressure of the first compressor 101 may be 45 MPa
  • the exhaust pressure of the second compressor 102 may be 87.5 MPa.
  • the hydrogenation station also has a storage tank that receives the compressed hydrogen gas from the compressor, such as the first storage tank 201. Compared with the two compressors used in the hydrogenation station, the storage pressure of the first storage tank 201 is closer to the first.
  • the discharge pressure of the two compressors 102 preferably, the storage pressure of the first storage tank 201 may be 87.5 MPa.
  • the controller can control the hydrogen to enter the first storage tank 201 by controlling the valve, for example, installed between the first compressor 101 and the first storage tank 201 having a lower exhaust pressure and the second compressor 102 having a higher exhaust pressure. And the first storage tank 201.
  • the valve for example, installed between the first compressor 101 and the first storage tank 201 having a lower exhaust pressure and the second compressor 102 having a higher exhaust pressure.
  • the first storage tank 201 When you want to control a compressor to inflate and pressurize the first storage tank 201, you can open the valve corresponding to the compressor and start the compressor; when you stop controlling the inflation and pressurization, you can turn off the compressor. Valve and stop the compressor.
  • a detector may be located in the first storage tank 201 to detect the pressure of the first storage tank 201.
  • the first storage tank 201 is inflated and pressurized with a first compressor 101 having an exhaust pressure lower than the storage pressure of the first storage tank 201.
  • the second compressor 102 (for example, an exhaust pressure of 87.5 MPa) with a discharge pressure greater than or equal to the storage pressure of the first storage tank 201 inflates and pressurizes the first storage tank 201, where the first preset pressure may be less than the first
  • the exhaust pressure of the compressor 101 may also be preferably equal to the exhaust pressure of the first compressor 101. For example, if the exhaust pressure of the first compressor 101 is 45 MPa, the first preset pressure may be 45 MPa or less.
  • the burden on the second compressor 102 can be reduced as much as possible, so that the second compressor 102 with a small displacement can be set, the cost of the compressor can be reduced, at the same time the time for operating the second compressor 102 can be reduced, and the power consumption can be reduced.
  • FIG. 2 is a schematic structural diagram of a hydrogenation station control system according to another embodiment of the present invention.
  • the system further includes a second storage tank 202.
  • the exhaust pressure of the first compressor 101 is greater than or equal to the storage pressure of the second storage tank 202.
  • the second compressor 102 is further connected to the second storage tank 202, and the detector is further configured to detect the pressure of the second storage tank 202; the controller is further configured to: control the first compressor 101
  • the second storage tank 202 is inflated and pressurized; when the pressure of the second storage tank 202 is equal to a second preset pressure, the second compressor 102 is controlled to inflate and pressurize the second storage tank 202.
  • the embodiment of the present invention may also first control the first compression with a smaller discharge pressure.
  • the second storage tank 202 is pressurized by an engine 101 (for example, an exhaust pressure of 45 MPa), and the second compressor 102 (for example, an exhaust pressure of 87.5 MPa) having a larger exhaust pressure is controlled to inflate and pressurize the second storage tank 202.
  • the basis for switching the first compressor 101 to the second compressor 102 is whether the pressure of the second storage tank 202 reaches a second preset pressure.
  • the detector may be disposed in the second storage tank 202 to detect the pressure of the second storage tank 202, and the second preset pressure is preferably 90% -95% of the gas storage pressure of the second storage tank 202.
  • the controller can similarly control the valve provided between the first storage tank 201 and the compressor to control the valve provided between the second storage tank 202 and the compressor to control the hydrogen gas to enter the second storage tank 202.
  • the first compressor 101 which is similar to the storage pressure of the second storage tank 202, is still used for inflation and pressurization, which may make the inflation pressurization efficiency low.
  • a compressor with a larger exhaust pressure is used to complete the inflating and pressurizing efficiency.
  • FIG. 3 is a schematic structural diagram of a hydrogenation station control system according to another embodiment of the present invention.
  • the number of the first storage tank 201 is one, and the number of the second storage tank 202 is two, but the present invention is not limited thereto.
  • the first storage tank 201 and the second storage tank 202 The number can be adjusted as needed.
  • one first storage tank 201 and two second storage tanks 202 form an optimal multi-stage gas storage structure.
  • the hydrogenation machine can Hydrogen is taken from the second storage tank 202.
  • the second storage tank 202 is no longer sufficient to meet the filling demand or when the filling is about to end, 201 kinds of hydrogen can be taken from the first storage tank, which is beneficial to reducing the energy consumption of the compressor. A more specific way of taking hydrogen is described in detail below.
  • FIG. 4 is a schematic structural diagram of a hydrogenation station control system according to another embodiment of the present invention.
  • the system further includes: a first hydrogenator 301 for hydrogenating a hydrogen storage bottle of a user using hydrogen, wherein the gas storage pressure of the second storage tank 202 is less than the first The filling pressure of the hydrogenation machine 301, the gas storage pressure of the first storage tank 201 is greater than or equal to the filling pressure of the first hydrogenation machine 301, the first storage tank 201 and the second storage tank 202 Connected to the first hydrogenator 301, the detector is further configured to detect the pressure of the hydrogen storage bottle; the controller is configured to control the second storage tank 202 to provide the first hydrogenator 301 Hydrogen gas; when the pressure of the hydrogen storage bottle is equal to a third preset pressure, controlling the first storage tank 201 to supply hydrogen to the first hydrogenator 301.
  • the hydrogenation station may use a hydrogenation machine to fill the hydrogen storage bottle, for example, a hydrogenation machine with a higher filling pressure, that is, the first hydrogenation machine 301, and the filling pressure may preferably be 70MPa.
  • the first hydrogenator 301 can supply hydrogen from a first storage tank 201 (for example, a gas storage pressure of 87.5 MPa) having a large gas storage pressure and a second storage tank 202 (for example, a gas storage pressure of 45 MPa) having a small gas storage pressure.
  • the controller can control the first hydrogenation machine 301 to take hydrogen from the first storage tank 201 and the second storage tank 202 by controlling the valve, for example, installed between the first storage tank 201 and the first hydrogenation machine 301 and the second storage tank. Valve between tank 202 and first hydrogenator 301. When it is desired to control the first hydrogenation machine 301 to take gas from a certain storage tank, the valve corresponding to the storage tank may be opened; when the control stops performing gas extraction, the valve corresponding to the storage tank may be closed.
  • the detector may be located in the first hydrogenation machine 301.
  • a second storage tank 202 for example, a storage pressure of 45 MPa
  • a first storage tank 201 for example, a gas storage pressure of 87.5 MPa
  • a gas storage pressure greater than the filling pressure of the first hydrogenation machine 301 is used to supply hydrogen to the first hydrogenation machine 301.
  • the third preset pressure may be lower than the gas storage pressure of the second storage tank 202, and it is generally preferred to be close to that of the second storage tank 202.
  • the gas storage pressure for example, the gas storage pressure of the second storage tank 202 is 45 MPa, and at this time, the third preset pressure may be less than or equal to 44 MPa.
  • FIG. 5 is a schematic structural diagram of a hydrogenation station control system according to another embodiment of the present invention.
  • the system further includes a second hydrogenation machine 302, and an exhaust pressure of the second storage tank 202 is greater than or equal to a filling pressure of the second hydrogenation machine 302.
  • the first storage tank 201 and the second storage tank 202 are connected to the second hydrogenator 302, and the controller is further configured to: control the second storage tank 202 to provide hydrogen to the second hydrogenator 302;
  • the pressure of the hydrogen storage bottle is equal to the fourth preset pressure
  • the first storage tank 201 is controlled to supply hydrogen to the second hydrogenator 302.
  • hydrogenation stations can also be equipped with hydrogenation machines with different filling pressures.
  • the second filling machine 302 may preferably have a filling pressure of 35 MPa.
  • the second storage tank 202 (for example, a storage pressure of 45 MPa) with a smaller storage pressure may be controlled to provide hydrogen, and then the storage pressure may be controlled.
  • a larger first storage tank 201 (for example, a gas storage pressure of 87.5 MPa) provides hydrogen.
  • the basis for switching the second storage tank 202 to the first storage tank 201 is whether the pressure of the hydrogen storage bottle reaches a fourth preset pressure.
  • the detector can detect the pressure of the hydrogen storage bottle, and the fourth preset pressure is preferably 90% -95% of the gas storage pressure of the hydrogen storage bottle.
  • the controller can also control the second hydrogenator 302 to take hydrogen from the first storage tank 201 and the second storage tank 202 by controlling the valve.
  • the station has a hydrogen storage capacity of 150kg, using an outlet pressure of 45MPa and a displacement of 500Nm3 / h @ 20MPa compressor (motor power 30kW) and an outlet pressure of 87MPa and a displacement of 500Nm3 / h @ 20MPa compressor (motor power 75kW), calculated according to the daily hydrogenation capacity of 300kg, the total energy consumption of the compressor is 384kWh.
  • the station has a hydrogen storage capacity of 150 kg.
  • a compressor with an outlet pressure of 87 MPa and a displacement of 500 Nm3 / h @ 20 MPa (motor power 75 kW) is calculated and compressed according to a daily hydrogenation capacity of 300 kg.
  • the total energy consumption of the compressor is 600 kWh. Compared with the above embodiment, the total energy consumption of the compressor is more.
  • FIG. 6 is a flowchart of a method for controlling a hydrogenation station according to an embodiment of the present invention. As shown in FIG. 6, the method uses a first compressor, a second compressor, and a first storage tank, wherein an exhaust pressure of the first compressor is less than a storage pressure of the first storage tank, and the The exhaust pressure of the second compressor is greater than or equal to the storage pressure of the first storage tank, and the method includes:
  • Step S61 detecting the pressure of the first storage tank
  • Step S62 controlling the first compressor to inflate and pressurize the first storage tank
  • Step S63 Determine whether the pressure of the first storage tank is equal to a first preset pressure
  • Step S64 when the pressure of the first storage tank is equal to the first preset pressure, control the second compressor to inflate and pressurize the first storage tank.
  • FIG. 7 is a flowchart of a method for controlling a hydrogenation station according to another embodiment of the present invention. As shown in FIG. 7, the method also uses a second storage tank, and the exhaust pressure of the first compressor is greater than or equal to the storage pressure of the second storage tank. The method further includes:
  • Step S71 detecting the pressure of the second storage tank
  • Step S72 controlling the first compressor to inflate and pressurize the second storage tank
  • Step S73 Determine whether the pressure of the second storage tank is equal to a second preset pressure
  • Step S74 when the pressure of the second storage tank is equal to a second preset pressure, control the second compressor to inflate and pressurize the second storage tank.
  • FIG. 8 is a flowchart of a method for controlling a hydrogenation station according to another embodiment of the present invention. As shown in FIG. 8, the method also uses a first hydrogenator for hydrogenating a hydrogen storage bottle of a user using hydrogen, wherein the gas storage pressure of the second storage tank is less than the first hydrogenator The filling pressure of the first storage tank is greater than or equal to the filling pressure of the first hydrogenation machine.
  • the method includes:
  • Step S81 detecting the pressure of the hydrogen storage bottle
  • Step S82 controlling the second storage tank to provide hydrogen to the first hydrogenator
  • Step S83 Determine whether the pressure of the hydrogen storage bottle is equal to a third preset pressure
  • Step S84 when the pressure of the hydrogen storage bottle is equal to the third preset pressure, control the first storage tank to supply hydrogen to the first hydrogenator.
  • FIG. 9 is a flowchart of a method for controlling a hydrogenation station according to another embodiment of the present invention. As shown in FIG. 9, the method also uses a second hydrogenation machine, and the exhaust pressure of the second storage tank is greater than or equal to the filling pressure of the second hydrogenation machine. The method further includes:
  • Step S91 detecting the pressure of the hydrogen storage bottle
  • Step S92 controlling the second storage tank to provide hydrogen to the second hydrogenator
  • Step S93 Determine whether the pressure of the hydrogen storage bottle is equal to a fourth preset pressure
  • step S94 when the pressure of the hydrogen storage bottle is equal to a fourth preset pressure, the first storage tank is controlled to supply hydrogen to the second hydrogenator.
  • An embodiment of the present invention further provides a hydrogenation station, which includes the hydrogenation station control system described above.
  • An embodiment of the present invention further provides a machine-readable storage medium, and the machine-readable storage medium stores instructions that cause the machine to execute the hydrogen station control method described above.
  • An embodiment of the present invention also provides a processor for running a program for running to execute the method for controlling a hydrogenation station described above.
  • the hydrogenation station control system includes: a first compressor, a second compressor, a first storage tank, a detector, and a controller.
  • the detector is used to detect the pressure of the first storage tank
  • the controller is used to perform the following control:
  • the first compressor with a lower exhaust pressure is first charged and pressurized.
  • a second compressor with a larger exhaust pressure is used for inflation and pressurization, which can save the cost of the compressor and reduce the power consumption.
  • the program is stored in a storage medium and includes several instructions to enable a single chip microcomputer, a chip, or a processor. (processor) executes all or part of the steps of the method described in each embodiment of the present application.
  • the foregoing storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes .

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Abstract

一种加氢站控制系统、方法以及加氢站，该系统包括：第一压缩机（101）、第二压缩机（102）、第一储罐（201）、检测器以及控制器，其中，所述第一压缩机的排气压力小于所述第一储罐的储气压力，所述第二压缩机的排气压力大于等于所述第一储罐的储气压力，所述第一压缩机和所述第二压缩机连接所述第一储罐，所述检测器用于检测所述第一储罐的压力；所述控制器用于：控制所述第一压缩机对所述第一储罐充气加压；以及在所述第一储罐的压力等于第一预设压力时，控制所述第二压缩机对所述第一储罐充气加压。该系统可以节省压缩机的成本，并降低电耗。

Description

加氢站控制系统、方法以及加氢站 技术领域
本发明涉及加氢站，具体地涉及一种加氢站控制系统、方法以及加氢站。
背景技术
氢能以高能效、来源广、可再生、燃烧产物零污染等优点，被国际公认为未来的绿色能源。近年来，包括美、日、中、韩、欧盟在内的许多国家和地区都在大力开发氢能汽车，积极建造加氢站和相关氢能基础实施。以氢为动力己成为新能源领域的重要应用方向。氢气通过加氢站加氢机对燃料电池汽车进行加注，并以高压形式储存在车载氢气瓶中。
在现有技术中，加氢站通常使用压缩机-储罐的结构，使用压缩机将氢气压缩并充气至储罐。对于常见的35MPa加氢站，设置三个45MPa储罐为35MPa加氢机提供氢气，以及一个45MPa压缩机为三个45MPa储罐充气加压；对于常见的70MPa加氢站，设置三个87.5MPa储罐为70MPa加氢机提供氢气，以及一个87.5MPa压缩机为三个87.5MPa储罐充气加压。全程使用87.5MPa压缩机为三个87.5MPa储罐充气加压，对87.5MPa压缩机的要求较高，同时全程运行87.5MPa压缩机也将产生更多的电耗。
发明内容
本发明实施例的目的是提供一种加氢站控制系统、方法以及加氢站，该加氢站控制系统、方法以及加氢站可以节省压缩机的成本，并降低电耗。
为了实现上述目的，本发明实施例提供一种加氢站控制系统，该系统包括：第一压缩机、第二压缩机、第一储罐、检测器以及控制器，其中，所述第一压缩机的排气压力小于所述第一储罐的储气压力，所述第二压缩机的排气压力大于等于所述第一储罐的储气压力，所述第一压缩机和所述第二压缩机连接所述第一储罐，所述检测器用于检测所述第一储罐的压力；所述控制器用于：控制所述第一压缩机对所述第一储罐充气加压；在所述第一储罐的压力等于第一预设压力时，控制所述第二压缩机对所述第一储罐充气加压。
优选地，该系统还包括第二储罐，所述第一压缩机的排气压力大于等于所述第二储罐的储气压力，所述第一压缩机和所述第二压缩机还连接所述第二储罐，所述检测器 还用于检测所述第二储罐的压力；所述控制器还用于：控制所述第一压缩机对所述第二储罐充气加压；在所述第二储罐的压力等于第二预设压力时，控制所述第二压缩机对所述第二储罐充气加压。
优选地，所述第一储罐的数量为1个，所述第二储罐的数量为2个。
优选地，该系统还包括：第一加氢机，用于为使用氢气的用户的储氢瓶加氢，其中，所述第二储罐的储气压力小于所述第一加氢机的加注压力，所述第一储罐的储气压力大于等于所述第一加氢机的加注压力，所述第一储罐和所述第二储罐连接所述第一加氢机，所述检测器还用于检测所述储氢瓶的压力；所述控制器用于：控制所述第二储罐为所述第一加氢机提供氢气；在所述储氢瓶的压力等于第三预设压力时，控制所述第一储罐为所述第一加氢机提供氢气。
优选地，该系统还包括：第二加氢机，所述第二储罐的排气压力大于等于所述第二加氢机的加注压力，所述第一储罐和所述第二储罐连接所述第二加氢机，所述控制器还用于：控制所述第二储罐为所述第二加氢机提供氢气；在所述储氢瓶的压力等于第四预设压力时，控制所述第一储罐对所述第二加氢机提供氢气。
优选地，所述第一压缩机的排气压力为45MPa，所述第二压缩机的排气压力为87.5MPa；所述第一储罐的储气压力为87.5MPa，所述第二储罐的储气压力为45MPa。
优选地，所述第一加氢机的加氢压力为70MPa，所述第二加氢机的加氢压力为35MPa。
本发明实施例还提供一种加氢站控制方法，该方法使用第一压缩机、第二压缩机、第一储罐，其中，所述第一压缩机的排气压力小于所述第一储罐的储气压力，所述第二压缩机的排气压力大于等于所述第一储罐的储气压力，该方法包括：检测所述第一储罐的压力；控制所述第一压缩机对所述第一储罐充气加压；在所述第一储罐的压力等于第一预设压力时，控制所述第二压缩机对所述第一储罐充气加压。
优选地，该方法还使用第二储罐，所述第一压缩机的排气压力大于等于所述第二储罐的储气压力，该方法还包括：检测所述第二储罐的压力；控制所述第一压缩机对所述第二储罐充气加压；在所述第二储罐的压力等于第二预设压力时，控制所述第二压缩机对所述第二储罐充气加压。
优选地，该方法还使用第一加氢机，用于为使用氢气的用户的储氢瓶加氢，其中，所述第二储罐的储气压力小于所述第一加氢机的加注压力，所述第一储罐的储气压力大于等于所述第一加氢机的加注压力，该方法包括：检测所述储氢瓶的压力；控制所述第 二储罐为所述第一加氢机提供氢气；在所述储氢瓶的压力等于第三预设压力时，控制所述第一储罐为所述第一加氢机提供氢气。
优选地，该方法还使用第二加氢机，所述第二储罐的排气压力大于等于所述第二加氢机的加注压力，该方法还包括：控制所述第二储罐为所述第二加氢机提供氢气；在所述储氢瓶的压力等于第四预设压力时，控制所述第一储罐对所述第二加氢机提供氢气。
本发明实施例还提供一种加氢站，该加氢站包括上文所述的加氢站控制系统。
本发明实施例还提供一种机器可读存储介质，该机器可读存储介质上存储有指令，该指令使得机器执行上文所述的加氢站控制方法。
本发明实施例还提供一种处理器，用于运行程序，所述程序用于运行以执行上文所述的加氢站控制方法。通过上述技术方案，采用本发明提供的加氢站控制系统、方法和加氢站，该加氢站控制系统包括：第一压缩机、第二压缩机、第一储罐、检测器以及控制器，其中，使用检测器检测第一储罐的压力，使用控制器执行以下控制：对于储气压力较大的第一储罐，先采用排气压力较小的第一压缩机充气加压，在第一储罐的压力等于第一预设压力时，再采用排气压力更大的第二压缩机进行充气加压，可以设置排气量较小的第二压缩机，节省压缩机的成本，并降低电耗。
本发明实施例的其它特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
附图是用来提供对本发明实施例的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明实施例，但并不构成对本发明实施例的限制。在附图中：
图1是本发明一实施例提供的加氢站控制系统的结构示意图；
图2是本发明另一实施例提供的加氢站控制系统的结构示意图；
图3是本发明另一实施例提供的加氢站控制系统的结构示意图；
图4是本发明另一实施例提供的加氢站控制系统的结构示意图；
图5是本发明另一实施例提供的加氢站控制系统的结构示意图；
图6是本发明一实施例提供的加氢站控制方法的流程图；
图7是本发明另一实施例提供的加氢站控制方法的流程图；
图8是本发明另一实施例提供的加氢站控制方法的流程图；以及
图9是本发明另一实施例提供的加氢站控制方法的流程图。
附图标记说明
101      第一压缩机    102      第二压缩机
201      第一储罐      202      第二储罐
301      第一加氢机    302      第二加氢机。
具体实施方式
以下结合附图对本发明实施例的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明实施例，并不用于限制本发明实施例。
图1是本发明一实施例提供的加氢站控制系统的结构示意图。如图1所示，该系统包括：第一压缩机101、第二压缩机102、第一储罐201、检测器以及控制器，其中，所述第一压缩机101的排气压力小于所述第一储罐201的储气压力，所述第二压缩机102的排气压力大于等于所述第一储罐201的储气压力，所述第一压缩机101和所述第二压缩机102连接所述第一储罐201，所述检测器用于检测所述第一储罐201的压力；所述控制器用于：控制所述第一压缩机101对所述第一储罐201充气加压；在所述第一储罐201的压力等于第一预设压力时，控制所述第二压缩机102对所述第一储罐201充气加压。
在本发明实施例中，加氢站使用两个不同排气压力的压缩机进行氢气的压缩，即排气压力较小的第一压缩机101和排气压力较大的第二压缩机102，优选地，第一压缩机101的排气压力可以为45MPa，第二压缩机102的排气压力可以为87.5MPa。另外，加氢站也具有接收压缩机压缩后的氢气的储罐，例如第一储罐201，与加氢站使用的两个压缩机相比，第一储罐201的储气压力比较接近第二压缩机102的排气压力，优选地，第一储罐201的储气压力可以为87.5MPa。
控制器可以通过控制阀门来控制氢气进入第一储罐201，例如安装于排气压力较小的第一压缩机101和第一储罐201之间以及排气压力较大的第二压缩机102和第一储罐201之间的阀门。当想要控制某一压缩机对第一储罐201进行充气加压时，可以打开该压缩机对应的阀门，并启动该压缩机；控制停止进行充气加压时，可以关闭该压缩机对应的阀门，并停止该压缩机。检测器可以位于第一储罐201中，以检测第一储罐201的压力。
首先使用排气压力小于第一储罐201的储气压力的第一压缩机101对第一储罐201 进行充气加压，在第一储罐201的压力等于第一预设压力时，再使用排气压力大于等于第一储罐201的储气压力的第二压缩机102(例如排气压力为87.5MPa)对第一储罐201进行充气加压，其中第一预设压力可以小于第一压缩机101的排气压力，也可以优选等于第一压缩机101的排气压力，如第一压缩机101的排气压力为45MPa，此时第一预设压力可以小于等于45MPa。本实施例可以尽量减轻第二压缩机102的负担，从而可以设置排气量较小的第二压缩机102，降低压缩机成本，同时减少运行第二压缩机102的时间，降低电耗。
图2是本发明另一实施例提供的加氢站控制系统的结构示意图。如图2所示，该系统还包括第二储罐202，所述第一压缩机101的排气压力大于等于所述第二储罐202的储气压力，所述第一压缩机101和所述第二压缩机102还连接所述第二储罐202，所述检测器还用于检测所述第二储罐202的压力；所述控制器还用于：控制所述第一压缩机101对所述第二储罐202充气加压；在所述第二储罐202的压力等于第二预设压力时，控制所述第二压缩机102对所述第二储罐202充气加压。
基于加氢站的运行需要，可以设置不同储气压力的储罐。对于储气压力小于等于第一压缩机101的排气压力的第二储罐202(优选地，储气压力可以为45MPa)，本发明实施例还可以先控制排气压力较小的第一压缩机101(例如排气压力45MPa)对第二储罐202充气加压，再控制排气压力较大的第二压缩机102(例如排气压力87.5MPa)对第二储罐202充气加压。在本实施例中，第一压缩机101切换为第二压缩机102的依据是第二储罐202的压力是否达到第二预设压力。对此，检测器可以设置于第二储罐202中来检测第二储罐202的压力，而第二预设压力优选为第二储罐202的储气压力的90％-95％。控制器同样可以类似于控制上述设置于第一储罐201和压缩机之间的阀门来控制设置在第二储罐202和压缩机之间的阀门来控制氢气进入第二储罐202。
在即将完成充气加压时，仍然使用与第二储罐202的储气压力相近的第一压缩机101进行充气加压可能使充气加压效率变低，而通过上述方式对第二储罐202进行充气加压，在即将完成充气加压时，采用更大的排气压力的压缩机完成，可以使充气加压效率更高。
图3是本发明另一实施例提供的加氢站控制系统的结构示意图。如图3所示，所述第一储罐201的数量为1个，所述第二储罐202的数量为2个，但本发明不限于此，第一储罐201和第二储罐202的数量可以随实际需要进行调整。
在本实施例中，1个第一储罐201以及2个第二储罐202形成最优的多级储气结构， 在需要为加氢机提供氢气时，无论加氢机的加注压力为多少，3个储罐都可以采用接力的方式进行供氢，例如，在其中一个第二储罐202的压力越来越低，不足以满足加注的需求时，加氢机可以从另一个第二储罐202中取氢，在此第二储罐202再不足以满足加注的需求或者加注将要结束时，可以从第一储罐201种取氢，有利于减少压缩机的能耗。更为具体的取氢方式在下文详述。
图4是本发明另一实施例提供的加氢站控制系统的结构示意图。如图4所示，该系统还包括：第一加氢机301，用于为使用氢气的用户的储氢瓶加氢，其中，所述第二储罐202的储气压力小于所述第一加氢机301的加注压力，所述第一储罐201的储气压力大于等于所述第一加氢机301的加注压力，所述第一储罐201和所述第二储罐202连接所述第一加氢机301，所述检测器还用于检测所述储氢瓶的压力；所述控制器用于：控制所述第二储罐202为所述第一加氢机301提供氢气；在所述储氢瓶的压力等于第三预设压力时，控制所述第一储罐201为所述第一加氢机301提供氢气。
在本发明实施例中，加氢站可以使用加氢机来对储氢瓶进行加注，例如加注压力较高的加氢机，即第一加氢机301，优选加注压力可以为70MPa。第一加氢机301可以由储气压力较大的第一储罐201(例如储气压力87.5MPa)和储气压力较小的第二储罐202(例如储气压力45MPa)供氢。控制器可以通过控制阀门来控制第一加氢机301从第一储罐201和第二储罐202取氢，例如安装于第一储罐201和第一加氢机301之间以及第二储罐202和第一加氢机301之间的阀门。当想要控制第一加氢机301从某一储罐中进行取气时，可以打开该储罐对应的阀门；控制停止进行取气时，可以关闭该储罐对应的阀门。检测器可以位于第一加氢机301中。
首先使用储气压力小于第一加氢机301的加注压力的第二储罐202(例如储气压力45MPa)对第一加氢机301提供氢气，在储氢瓶的压力等于第三预设压力时，再使用储气压力大于第一加氢机301的加注压力的第一储罐201(例如储气压力87.5MPa)对第一加氢机301提供氢气，其中由于氢气加注过程中，存在管路压降，实际上加氢机出口压力比储气压力要低约1MPa，因此第三预设压力可以小于第二储罐202的储气压力，一般优选接近第二储罐202的储气压力，如第二储罐202的储气压力为45MPa，此时第三预设压力可以小于等于44MPa。本实施例不必全程使用储气压力较大的第一储罐201提供氢气，可以尽量节省第一储罐201的氢气用量，提高加注能力，减少压缩机的能耗。
图5是本发明另一实施例提供的加氢站控制系统的结构示意图。如图5所示，该系统还包括：第二加氢机302，所述第二储罐202的排气压力大于等于所述第二加氢机 302的加注压力，所述第一储罐201和所述第二储罐202连接所述第二加氢机302，所述控制器还用于：控制所述第二储罐202为所述第二加氢机302提供氢气；在所述储氢瓶的压力等于第四预设压力时，控制所述第一储罐201对所述第二加氢机302提供氢气。
基于不同的用氢需求，加氢站还可以设置不同加注压力的加氢机。例如第二加氢机302，优选加注压力可以为35MPa，本发明实施例还可以先控制储气压力较小的第二储罐202(例如储气压力45MPa)提供氢气，再控制储气压力较大的第一储罐201(例如储气压力87.5MPa)提供氢气。在本实施例中，第二储罐202切换为第一储罐201的依据是储氢瓶的压力是否达到第四预设压力。对此，检测器可以检测储氢瓶的压力，而第四预设压力优选为储氢瓶的储气压力的90％-95％。控制器同样可以通过控制阀门来控制第二加氢机302从第一储罐201和第二储罐202中取氢。
通过上述方式进行加注，在即将完成加注时，采用更大的储气压力的储罐提供氢气，可以使加注效率更高，提高加注能力。
以下提供使用本发明的控制系统的具体实施例：
1、对于70MPa等级加氢站，站内储氢容量150kg，采用一台出口压力45MPa、排气量500Nm3/h@20MPa压缩机(电机功率30kW)和一台出口压力87MPa、排气量500Nm3/h@20MPa压缩机(电机功率75kW)，按照日加氢能力300kg核算，压缩机总能耗384kWh。
在对比例中，对于70MPa等级加氢站，站内储氢容量150kg，采用一台出口压力87MPa、排气量500Nm3/h@20MPa压缩机(电机功率75kW)，按照日加氢能力300kg核算，压缩机总能耗600kWh，相比上述实施例，压缩机总耗能更多。
2、对于35MPa/70MPa双模加氢站，站内45MPa储氢300kg、87MPa储氢100kg，采用一台出口压力45MPa、排气量1200Nm3/h@20MPa压缩机(电机功率72kW)和一台出口压力87MPa、排气量400Nm3/h@20MPa压缩机(电机功率60kW)，当采用本发明控制方法，按照35MPa等级日加氢量600kg、70MPa等级日加氢量200kg核算，压缩机总能耗605kWh。
在对比例中，对于35MPa/70MPa双模加氢站，站内45MPa储氢300kg、87MPa储氢100kg，采用一台出口压力45MPa、排气量1200Nm3/h@20MPa压缩机(电机功率 72kW)和一台出口压力87MPa、排气量400Nm3/h@20MPa压缩机(电机功率60kW)，不采用本发明控制方法，按照35MPa等级日加氢量600kg、70MPa等级日加氢量200kg核算，压缩机总能耗724kWh，相比上述实施例，压缩机总耗能更多。
图6是本发明一实施例提供的加氢站控制方法的流程图。如图6所示，该方法使用第一压缩机、第二压缩机、第一储罐，其中，所述第一压缩机的排气压力小于所述第一储罐的储气压力，所述第二压缩机的排气压力大于等于所述第一储罐的储气压力，该方法包括：
步骤S61，检测所述第一储罐的压力；
步骤S62，控制所述第一压缩机对所述第一储罐充气加压；
步骤S63，判断所述第一储罐的压力是否等于第一预设压力；
步骤S64，在所述第一储罐的压力等于所述第一预设压力时，控制所述第二压缩机对所述第一储罐充气加压。
图7是本发明另一实施例提供的加氢站控制方法的流程图。如图7所示，该方法还使用第二储罐，所述第一压缩机的排气压力大于等于所述第二储罐的储气压力，该方法还包括：
步骤S71，检测所述第二储罐的压力；
步骤S72，控制所述第一压缩机对所述第二储罐充气加压；
步骤S73，判断所述第二储罐的压力是否等于第二预设压力；
步骤S74，在所述第二储罐的压力等于第二预设压力时，控制所述第二压缩机对所述第二储罐充气加压。
图8是本发明另一实施例提供的加氢站控制方法的流程图。如图8所示，该方法还使用第一加氢机，用于为使用氢气的用户的储氢瓶加氢，其中，所述第二储罐的储气压力小于所述第一加氢机的加注压力，所述第一储罐的储气压力大于等于所述第一加氢机的加注压力，该方法包括：
步骤S81，检测所述储氢瓶的压力；
步骤S82，控制所述第二储罐为所述第一加氢机提供氢气；
步骤S83，判断所述储氢瓶的压力是否等于第三预设压力；
步骤S84，在所述储氢瓶的压力等于所述第三预设压力时，控制所述第一储罐为所述第一加氢机提供氢气。
图9是本发明另一实施例提供的加氢站控制方法的流程图。如图9所示，该方法还使用第二加氢机，所述第二储罐的排气压力大于等于所述第二加氢机的加注压力，该方法还包括：
步骤S91，检测所述储氢瓶的压力；
步骤S92，控制所述第二储罐为所述第二加氢机提供氢气；
步骤S93，判断所述储氢瓶的压力是否等于第四预设压力；
步骤S94，在所述储氢瓶的压力等于第四预设压力时，控制所述第一储罐对所述第二加氢机提供氢气。
上述方法的实施例与上文所述的系统的实施例类似，在此不再赘述。
本发明实施例还提供一种加氢站，该加氢站包括上文所述的加氢站控制系统。
本发明实施例还提供一种机器可读存储介质，该机器可读存储介质上存储有指令，该指令使得机器执行上文所述的加氢站控制方法。本发明实施例还提供一种处理器，用于运行程序，所述程序用于运行以执行上文所述的加氢站控制方法。
通过上述技术方案，采用本发明提供的加氢站控制系统、方法和加氢站，该加氢站控制系统包括：第一压缩机、第二压缩机、第一储罐、检测器以及控制器，其中，使用检测器检测第一储罐的压力，使用控制器执行以下控制：对于储气压力较大的第一储罐，先采用排气压力较小的第一压缩机充气加压，在第一储罐的压力等于第一预设压力时，再采用排气压力更大的第二压缩机进行充气加压，可以节省压缩机的成本，并降低电耗。
以上结合附图详细描述了本发明实施例的可选实施方式，但是，本发明实施例并不限于上述实施方式中的具体细节，在本发明实施例的技术构思范围内，可以对本发明实施例的技术方案进行多种简单变型，这些简单变型均属于本发明实施例的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合。为了避免不必要的重复，本发明实施例对各种可能的组合方式不再另行说明。
本领域技术人员可以理解实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序存储在一个存储介质中，包括若干指令用以使得单片机、芯片或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序 代码的介质。
此外，本发明实施例的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明实施例的思想，其同样应当视为本发明实施例所公开的内容。

Claims (14)

  1. 一种加氢站控制系统，其特征在于，该系统包括：
    第一压缩机、第二压缩机、第一储罐、检测器以及控制器，其中，
    所述第一压缩机的排气压力小于所述第一储罐的储气压力，所述第二压缩机的排气压力大于等于所述第一储罐的储气压力，所述第一压缩机和所述第二压缩机连接所述第一储罐，
    所述检测器用于检测所述第一储罐的压力；
    所述控制器用于：
    控制所述第一压缩机对所述第一储罐充气加压；以及
    在所述第一储罐的压力等于第一预设压力时，控制所述第二压缩机对所述第一储罐充气加压。
  2. 根据权利要求1所述的加氢站控制系统，其特征在于，该系统还包括第二储罐，所述第一压缩机的排气压力大于等于所述第二储罐的储气压力，所述第一压缩机和所述第二压缩机还连接所述第二储罐，
    所述检测器还用于检测所述第二储罐的压力；
    所述控制器还用于：
    控制所述第一压缩机对所述第二储罐充气加压；以及
    在所述第二储罐的压力等于第二预设压力时，控制所述第二压缩机对所述第二储罐充气加压。
  3. 根据权利要求2所述的加氢站控制系统，其特征在于，所述第一储罐的数量为1个，所述第二储罐的数量为2个。
  4. 根据权利要求2所述的加氢站控制系统，其特征在于，该系统还包括：
    第一加氢机，用于为使用氢气的用户的储氢瓶加氢，其中，
    所述第二储罐的储气压力小于所述第一加氢机的加注压力，所述第一储罐的储气压力大于等于所述第一加氢机的加注压力，所述第一储罐和所述第二储罐连接所述第一加氢机，
    所述检测器还用于检测所述储氢瓶的压力；
    所述控制器用于：
    控制所述第二储罐为所述第一加氢机提供氢气；以及
    在所述储氢瓶的压力等于第三预设压力时，控制所述第一储罐为所述第一加氢机提供氢气。
  5. 根据权利要求4所述的加氢站控制系统，其特征在于，该系统还包括：第二加氢机，所述第二储罐的排气压力大于等于所述第二加氢机的加注压力，所述第一储罐和所述第二储罐连接所述第二加氢机，
    所述控制器还用于：
    控制所述第二储罐为所述第二加氢机提供氢气；以及
    在所述储氢瓶的压力等于第四预设压力时，控制所述第一储罐对所述第二加氢机提供氢气。
  6. 根据权利要求2所述的加氢站控制系统，其特征在于，
    所述第一压缩机的排气压力为45MPa，所述第二压缩机的排气压力为87.5MPa；
    所述第一储罐的储气压力为87.5MPa，所述第二储罐的储气压力为45MPa。
  7. 根据权利要求5所述的加氢站控制系统，其特征在于，所述第一加氢机的加氢压力为70MPa，所述第二加氢机的加氢压力为35MPa。
  8. 一种加氢站控制方法，其特征在于，该方法使用第一压缩机、第二压缩机、第一储罐，其中，所述第一压缩机的排气压力小于所述第一储罐的储气压力，所述第二压缩机的排气压力大于等于所述第一储罐的储气压力，该方法包括：
    检测所述第一储罐的压力；
    控制所述第一压缩机对所述第一储罐充气加压；以及
    在所述第一储罐的压力等于第一预设压力时，控制所述第二压缩机对所述第一储罐充气加压。
  9. 根据权利要求8所述的加氢站控制方法，其特征在于，该方法还使用第二储罐，所述第一压缩机的排气压力大于等于所述第二储罐的储气压力，该方法还包括：
    检测所述第二储罐的压力；
    控制所述第一压缩机对所述第二储罐充气加压；以及
    在所述第二储罐的压力等于第二预设压力时，控制所述第二压缩机对所述第二储罐充气加压。
  10. 根据权利要求8所述的加氢站控制方法，其特征在于，该方法还使用第一加氢机，用于为使用氢气的用户的储氢瓶加氢，其中，所述第二储罐的储气压力小于所述第一加氢机的加注压力，所述第一储罐的储气压力大于等于所述第一加氢机的加注压力，该方法包括：
    检测所述储氢瓶的压力；
    控制所述第二储罐为所述第一加氢机提供氢气；以及
    在所述储氢瓶的压力等于第三预设压力时，控制所述第一储罐为所述第一加氢机提供氢气。
  11. 根据权利要求10所述的加氢站控制方法，其特征在于，该方法还使用第二加氢机，所述第二储罐的排气压力大于等于所述第二加氢机的加注压力，该方法还包括：
    控制所述第二储罐为所述第二加氢机提供氢气；以及
    在所述储氢瓶的压力等于第四预设压力时，控制所述第一储罐对所述第二加氢机提供氢气。
  12. 一种加氢站，其特征在于，该加氢站包括权利要求1-7中任意一项权利要求所述的加氢站控制系统。
  13. 一种机器可读存储介质，其特征在于，该机器可读存储介质上存储有指令，该指令使得机器执行权利要求8-11中任意一项权利要求所述的加氢站控制方法。
  14. 一种处理器，其特征在于，用于运行程序，所述程序用于运行以执行权利要求8-11中任意一项权利要求所述的加氢站控制方法。
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