CN116697272A - Hydrogen production hydrogenation station in organic liquid station and control method thereof - Google Patents

Hydrogen production hydrogenation station in organic liquid station and control method thereof Download PDF

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Publication number
CN116697272A
CN116697272A CN202310924372.2A CN202310924372A CN116697272A CN 116697272 A CN116697272 A CN 116697272A CN 202310924372 A CN202310924372 A CN 202310924372A CN 116697272 A CN116697272 A CN 116697272A
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CN
China
Prior art keywords
hydrogen
pressure
storage tank
station
organic liquid
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Pending
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CN202310924372.2A
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Chinese (zh)
Inventor
杨福胜
霍天晴
李培雅
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Shaanxi Heyi Energy Technology Co ltd
Guangzhou Branch Of State Power Investment Group Guangdong Electric Power Co ltd
Original Assignee
Shaanxi Heyi Energy Technology Co ltd
Guangzhou Branch Of State Power Investment Group Guangdong Electric Power Co ltd
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Priority to CN202310924372.2A priority Critical patent/CN116697272A/en
Publication of CN116697272A publication Critical patent/CN116697272A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • 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
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • F17D1/065—Arrangements for producing propulsion of gases or vapours
    • F17D1/07—Arrangements for producing propulsion of gases or vapours by compression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • 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
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0157—Compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0304—Heat exchange with the fluid by heating using an electric heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/0393—Localisation of heat exchange separate using a vaporiser
    • 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
    • F17C2227/046—Methods for emptying or filling by even emptying or filling
    • 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
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0689—Methods for controlling or regulating
    • F17C2250/0694—Methods for controlling or regulating with calculations
    • 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
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/036—Avoiding leaks
    • 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
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • 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
    • 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

Abstract

The invention relates to a hydrogen production and hydrogenation station in an organic liquid station and a control method thereof, wherein the hydrogen production and hydrogenation station in the organic liquid station comprises a hydrogen discharge reaction unit, the hydrogen discharge reaction unit comprises a hydrogen-rich organic liquid storage tank, a feed pump, a hydrogen discharge reactor and a gas-liquid separator which are sequentially connected, the pressure boosting unit comprises a compressor for boosting hydrogen, the pressure boosting unit further comprises a hydrogen storage tank, and a safety detection unit comprises a hydrogen purity and impurity detection device, an environmental hydrogen concentration detection device, a hydrogen storage pressure detection device and a control unit, the hydrogen purity and impurity detection device is used for detecting hydrogen discharged by the hydrogen discharge reaction unit, the environmental hydrogen concentration detection device is used for detecting the hydrogen concentration in air, and the hydrogen storage pressure detection device is used for detecting the gas pressure in the storage tank. When the hydrogen production hydrogenation station in the organic liquid station and the control method thereof are used, the one-time transportation amount is larger, the transportation cost is lower, the hydrogen supply capacity is high, and the hydrogen production cost is reduced.

Description

Hydrogen production hydrogenation station in organic liquid station and control method thereof
Technical Field
The invention relates to the technical field of hydrogen stations, in particular to a hydrogen production hydrogenation station in an organic liquid station and a control method thereof.
Background
As one of the most promising clean energy sources worldwide, hydrogen energy is considered by several countries as a "final new energy automobile solution".
The hydrogen adding station is used as a tie for connecting the upstream hydrogen and the downstream fuel automobile, and is an important step for large-scale popularization of hydrogen energy. With the continuous development of hydrogen energy, the hydrogen demand is continuously increased, and the phenomena of insufficient hydrogen supply and high terminal price occur in various hydrogen adding stations.
The organic liquid hydrogen storage in China has mature application in the aspect of fuel cell automobiles at present, but is still in a starting stage at a hydrogen adding station end, and certain defects and lack of integral design still exist on the problems of the integral flow, safety control and how to couple and connect the hydrogen preparing end and the filling end in the hydrogen preparing and adding station in the organic liquid station. The primary and secondary hydrogenation station hydrogenation method (CN 115875594 a) proposes a method of using primary and secondary stations: and the mother station is utilized to carry out large-scale hydrogen production on methanol, and the methanol is transported to the child station for filling. The method has large initial investment, is suitable for areas with large hydrogen demands and relatively concentrated, and has poor economy in areas with scattered demands.
Disclosure of Invention
The invention provides a hydrogen production hydrogenation station in an organic liquid station and a control method thereof, which aim to solve the technical problem of high investment cost of the existing hydrogen production hydrogenation station.
In order to solve the problems, the hydrogen production and hydrogen adding station in the organic liquid station provided by the invention adopts the following technical scheme: the hydrogen-enriched organic liquid hydrogen-enriched device comprises a hydrogen-enriched organic liquid storage tank, a feed pump, a hydrogen-enriched reactor and a gas-liquid separator which are sequentially connected, wherein the hydrogen-enriched reactor is used for removing hydrogen in organic liquid in the hydrogen-enriched organic liquid storage tank, a liquid outlet of the gas-liquid separator is connected with the hydrogen-enriched organic liquid storage tank, and a gas outlet of the gas-liquid separator is connected with a hydrogen purification device;
the pressure boosting unit is connected to the hydrogen discharge reaction unit and comprises a compressor for pressurizing hydrogen, and the pressure boosting unit also comprises a hydrogen storage tank for storing the hydrogen compressed by the compressor;
the safety detection unit comprises a hydrogen purity and impurity detection device, an environmental hydrogen concentration detection device, a hydrogen storage pressure detection device and a control unit, wherein the hydrogen purity and impurity detection device is used for detecting hydrogen discharged by the hydrogen discharge reaction unit, the environmental hydrogen concentration detection device is used for detecting the concentration of hydrogen in air, and the hydrogen storage pressure detection device is used for detecting the pressure of gas in the storage tank.
The beneficial effects are that: when the hydrogen storage device is used, hydrogen is prepared through the hydrogen discharge reaction unit, then the hydrogen is conveyed to the pressure boosting unit, and the hydrogen is compressed into the hydrogen storage tank through the compressor in the pressure boosting unit. The hydrogen production and hydrogenation station in the organic liquid station can directly prepare the organic liquid in the hydrogen-rich organic liquid storage tank into hydrogen when in use, thereby improving the efficiency, self-producing and self-selling, and simultaneously, compared with the hydrogen, the organic liquid has higher density, larger one-time transportation amount and lower transportation cost.
Further, the hydrogen discharge reaction unit further comprises a heating device for providing a heat source for the hydrogen discharge reactor, a gas flowmeter for detecting the hydrogen quantity generated by the gas-liquid separator, and a one-way valve connected to the hydrogen outlet end of the hydrogen purification device, wherein the other end of the one-way valve is connected with a gas buffer tank, the hydrogen outlet end of the gas buffer tank is connected with a safety valve and a pressure reducing valve, and the pressure reducing valve is connected with the pressure increasing unit.
The beneficial effects are that: the hydrogen production pressure is maintained in a relatively stable range, and the safety of the hydrogen discharge reaction unit is ensured.
Further, the boost unit comprises a low-pressure compressor, a low-pressure storage tank group, a medium-pressure compressor, a first hydrogen storage tank group, a second hydrogen storage tank group, a high-pressure compressor, four air valves and a sequence control panel which are connected together, the low-pressure compressor is connected with a pressure reducing valve of the hydrogen release reaction unit, the set pressure of the first hydrogen storage tank group is smaller than the set pressure of the second hydrogen storage tank group, the first hydrogen storage tank group and the second hydrogen storage tank group are connected in parallel, and the tail ends of the first hydrogen storage tank group and the second hydrogen storage tank group are connected with the sequence control panel, and the air valves comprise a first air valve, a second air valve, a third air valve and a fourth air valve.
The beneficial effects are that: the hydrogenation is convenient for grading multiple vehicles.
Further, the safety detection unit also comprises an audible and visual alarm device and a nitrogen purging device, wherein the audible and visual alarm device and the nitrogen purging device are used for giving an alarm when the hydrogen concentration detected by the environmental hydrogen concentration detection device exceeds the standard, and simultaneously purging and cleaning hydrogen in the space, the safety detection unit also comprises a vehicle storage tank state detection device, and the vehicle storage tank state detection device is arranged at the end part of the hydrogenation machine gun head so as to detect the hydrogen pressure in the vehicle hydrogen storage tank.
The beneficial effects are that: the safety of the hydrogen discharge reaction unit and the boosting unit is ensured, and safety accidents caused by the exceeding of the hydrogen concentration are avoided.
Further, the low-pressure compressor, the medium-pressure compressor and the high-pressure compressor are all connected with a compressor heat exchange module, and the compressor heat exchange module is connected with the heating device so as to convey the converted heat to the heating device.
The beneficial effects are that: the internal temperature of the low-pressure compressor, the middle-pressure compressor and the high-pressure compressor is prevented from being too high in the compression process, and meanwhile, heat in the low-pressure compressor, the middle-pressure compressor and the high-pressure compressor is recycled, so that partial energy consumption is reduced.
Further, the safety detection unit further comprises a long tube trailer connected with the sequence control panel.
The beneficial effects are that: hydrogen source supply is carried out on the small-scale hydrogen adding stations within a certain transportation distance through a long tube trailer.
Furthermore, the low-pressure storage tank group is also connected with a standby low-pressure tank group in parallel.
The beneficial effects are that: in order to take gas when the hydrogen demand is excessive or the hydrogen discharge reaction unit fails and the hydrogen supply is insufficient, the feeding capacity of the hydrogenation station is improved.
The invention provides a control method for hydrogen production and hydrogen adding stations in an organic liquid station, which comprises the following steps:
s1, removing hydrogen in an organic liquid through a hydrogen release reaction unit, pressurizing by a compressor, and storing in a hydrogen storage tank, wherein the hydrogen storage tank comprises a low-pressure hydrogen storage tank group, a first hydrogen storage tank group and a second hydrogen storage tank group, and the hydrogen storage pressure of the first hydrogen storage tank group is smaller than that of the second hydrogen storage tank group;
s2, during filling, firstly taking out the hydrogen in the first hydrogen storage tank group through the sequence control panel, filling after precooling the taken-out hydrogen, taking out the hydrogen in the second hydrogen storage tank group through the sequence control panel when the hydrogen pressure of the vehicle storage tank reaches the maximum design pressure of the first hydrogen storage tank group, and filling after precooling the taken-out hydrogen until the hydrogen pressure of the vehicle storage tank reaches the maximum design pressure;
s3, inputting hydrogen into the long tube trailer through the sequence control panel, and then supplying hydrogen to the small-scale hydrogen adding station within a certain transportation distance through the long tube trailer.
The beneficial effects are that: when the control method is used, the first hydrogen storage tank group and the second hydrogen storage tank group are used for storing hydrogen, so that vehicles can be sequentially filled in a grading manner when hydrogen is filled into the vehicles, excessive hydrogen is prevented from being filled at one time, and safety during filling is improved.
Further, the low pressure tank set, the first hydrogen tank set, and the second hydrogen tank set each include at least one low pressure tank, at least one medium pressure tank, and at least one high pressure tank.
The beneficial effects are that: the stability during hydrogenation is improved.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the invention are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 is a schematic diagram of a hydrogen-producing hydrogen-adding station in an organic liquid station according to the present invention;
FIG. 2 is a schematic structural view of the hydrogen discharge reaction unit of the present invention;
FIG. 3 is a schematic view of the structure of each tank set of the present invention;
fig. 4 is a schematic structural diagram of the boosting unit of the present invention.
Reference numerals illustrate:
1. a hydrogen discharge reaction unit; 2. a boosting unit; 3. a security detection unit; 4. a hydrogen-rich organic liquid storage tank; 5. a feed pump; 6. a hydrogen discharge reactor; 7. a heating device; 8. a gas-liquid separator; 9. a hydrogen-depleted organic liquid storage tank; 10. a gas flow meter; 11. a hydrogen purification device; 12. a one-way valve; 13. a gas buffer tank; 14. a safety valve; 15. a pressure reducing valve; 16. a low pressure compressor; 17. a low pressure tank group; 18. a medium pressure compressor; 19. a first hydrogen storage tank group; 20. a second hydrogen storage tank group; 21. a high pressure compressor; 22. a sequence control panel; 23. a first air valve; 24. a second air valve; 25. a third air valve; 26. a fourth air valve; 27. a hydrogen purity and impurity detection device; 28. an environmental hydrogen concentration detection means; 29. a hydrogen storage pressure detection device; 30. an audible and visual alarm device; 31. a nitrogen purging device; 32. a hydrogenation machine; 33. a control unit; 34. a tube trailer; 35. a spare low-pressure tank group; 36. a low pressure tank; 37. a medium pressure tank; 38. a high pressure tank; 39. and a precooling device.
Detailed Description
The following description of the embodiments of the present invention will be made more complete and clear to those skilled in the art by reference to the figures of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Any number of elements in the figures are for illustration and not limitation, and any naming is used for distinction only and not for any limiting sense.
The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments thereof.
Example 1 of hydrogen production and hydrogen addition station in an organic liquid station provided by the invention:
as shown in fig. 1 to 4, a hydrogen production and hydrogen adding station in an organic liquid station of the present invention includes a hydrogen discharge reaction unit 1, a pressure increasing unit 2, and a safety detection unit.
The hydrogen discharge reaction unit 1 comprises a hydrogen-rich organic liquid storage tank 4, a feed pump 5, a hydrogen discharge reactor 7, a heating device 6, a gas-liquid separator 8, a hydrogen-poor organic liquid storage tank 9, a gas flowmeter 10, a hydrogen purification device 11, a one-way valve 12, a gas buffer tank 13, a safety valve 14 and a pressure reducing valve 15.
The hydrogen-rich organic liquid storage tank 4 is used for storing hydrogen-rich organic liquid, the hydrogen-rich organic liquid storage tank 4 is connected with a feed pump 5 so as to pump out the organic liquid in the hydrogen-rich organic liquid storage tank 4, the feed pump 5 is connected with a hydrogen release reactor 7 and a heating device 6, so that the organic liquid pumped out by the feed pump 5 is decomposed to release hydrogen, the hydrogen-rich organic liquid enters a gas-liquid separator 8 after reacting in the hydrogen release reactor 7, the gas-liquid separator 8 inputs the hydrogen-poor organic liquid into the hydrogen-poor organic liquid storage tank 9, meanwhile, the hydrogen is conveyed into a gas flowmeter 10, then the hydrogen enters a gas buffer tank 13 through a one-way valve 12 after passing through a hydrogen purification device 11, and the one-way valve 12 is used for preventing compressed hydrogen from flowing reversely to damage the gas flowmeter 10.
In this embodiment, the hydrogen discharge reactor 7 is a fixed bed reactor, and the reactor may be filled with a powdered catalyst, a granular catalyst, or the like, and the hydrogen discharge catalyst may be a noble metal catalyst, a non-noble metal catalyst, a single metal catalyst, a multi-metal catalyst, or the like.
The heating device 6 is an electric heater.
The safety valve 14 is rated at 1Mpa for controlling the pressure of the entire hydrogen discharge reaction unit 1 not to exceed a prescribed value.
The pressure of the outflow gas can be accurately controlled by the pressure reducing valve 15, the pressure control range of the pressure reducing valve 15 is between 0.1MPa and 1MPa, and the hydrogen production pressure is maintained in a relatively stable range through the pressure reducing valve 15, so that the service life of subsequent equipment can be prolonged.
The pressure boosting unit 2 includes a unit for receiving the hydrogen gas generated by the hydrogen discharge reaction unit 1 and compressing it to a filling pressure. The booster unit 2 includes a low pressure compressor 16, a low pressure tank group 17, a medium pressure compressor 18, a first hydrogen tank group 19, a second hydrogen tank group 20, a high pressure compressor 21, four gas valves and a sequence control panel 22 connected together. The four gas valves include a first gas valve 23, a second gas valve 24, a third gas valve 25 and a fourth gas valve 26.
One end of the first air valve 23 is connected with the low-pressure compressor 16, and the other end is connected with the pressure reducing valve 15 of the hydrogen discharge reaction unit 1, so as to control the amount of hydrogen entering the low-pressure compressor 16, the low-pressure compressor 16 compresses the hydrogen and stores the compressed hydrogen in the low-pressure storage tank group 17, and in the embodiment, the inlet pressure of the low-pressure compressor 16 is 0.1-1 MPa, and the outlet pressure is 12.5MPa, so that the energy consumption of the low-pressure compressor 16 is ensured to be in an optimal state.
The other end of the low-pressure hydrogen storage tank group 17 is connected with a second air valve 24, the second air valve 24 is connected with a medium-pressure compressor 18, the medium-pressure compressor 18 is connected with a third air valve 25, the third air valve 25 is connected with a first hydrogen storage tank group 19, the medium-pressure compressor 18 is also connected with a high-pressure compressor 21, the high-pressure compressor 21 is connected with a fourth air valve 26, the fourth air valve 26 is connected with a second hydrogen storage tank group 20, and the third air valve 25 and the first hydrogen storage tank group 19 are connected with the high-pressure compressor 21, and the fourth air valve 26 and the second hydrogen storage tank group 20 are connected in parallel.
When the outlet pressure of the low-pressure hydrogen storage tank set 17 reaches the inlet pressure of the medium-pressure compressor 18, the second air valve 24 is opened, the fourth air valve 26 is opened, at the moment, hydrogen is compressed and stored in the second hydrogen storage tank set 20 through two stages of compression formed by the medium-pressure compressor 18 and the high-pressure compressor 21, when the second hydrogen storage tank set 20 reaches the rated hydrogen storage amount, the high-pressure compressor 21 is closed, the fourth air valve 26 is closed, the third air valve 25 is opened, and the hydrogen is compressed into the first hydrogen storage tank set 19 through the medium-pressure compressor 18.
The first hydrogen storage tank set 19 and the second hydrogen storage tank set 20 are both connected with a sequence control panel 22, the sequence control panel 22 is used for controlling the discharge of hydrogen along the first hydrogen storage tank set 19 or the second hydrogen storage tank set 20, the sequence control panel 22 is also connected with a precooling device 39, and the precooling device 39 is connected with a hydrogenation machine 32. So that the hydrogen in the first hydrogen storage tank group 19 or the second hydrogen storage tank group 20 is taken out through the sequence control plate 22, cooled, and then enters the hydrogenation machine 32 to reduce the temperature of the hydrogen.
In this embodiment, the low pressure tank set 17 is also connected in parallel with a spare low pressure tank set 35, the spare low pressure tank set 35 being connected between the low pressure compressor 16 and the second gas valve 24. The standby low-pressure tank set 35 should be replenished when the hydrogenation station is idle or the vehicle is not in the stop for filling in the morning every day, and the pressure range of the standby low-pressure tank set 35 should be maintained between 10MPa and 12.5MPa so as to be used for taking gas and entering the medium-pressure compressor 18 when the hydrogen demand is excessive or the hydrogen discharge reaction unit 1 fails and the hydrogen supply is insufficient, thereby improving the supply capacity of the hydrogenation station. When the hydrogen discharge unit resumes normal supply, the amount of hydrogen in the spare low-pressure tank group 35 should be timely replenished.
The rated hydrogen storage amount of the first hydrogen storage tank group 19 is 45MPa, and the rated hydrogen storage amount of the second hydrogen storage tank group 20 is 85MPa.
In the present embodiment, the low-pressure tank group 17, the spare low-pressure tank group 35, the first hydrogen tank group 19, and the second hydrogen tank group 20 each include one low-pressure tank 37, one medium-pressure tank 37, and one high-pressure tank 38, as shown in fig. 3, the low-pressure tank 36, the medium-pressure tank 37, and the high-pressure tank 38 in each tank group are connected in parallel, and gas valves are connected to both ends of the low-pressure tank 36, the medium-pressure tank 37, and the high-pressure tank 38, while the hydrogen capacities in the low-pressure tank 36, the medium-pressure tank 37, and the high-pressure tank 38 are sequentially increased and do not exceed the rated hydrogen capacities of the corresponding tank groups.
In this embodiment, the rated hydrogen storage amount of the first hydrogen storage tank group 19 is 45MPa, the pressure of the low pressure tank 36 in the first hydrogen storage tank group 19 is in the range of 25MPa to 30MPa, the pressure of the medium pressure tank 37 is in the range of 30MPa to 37.5MPa, and the pressure of the high pressure tank 38 is in the range of 37.5MPa to 45 MPa.
In the present embodiment, the low-pressure compressor 16, the medium-pressure compressor 18 and the high-pressure compressor 21 are all connected with a compressor heat exchange module, and the compressor heat exchange module is connected with the heating device 6 to transfer the converted heat to the heating device 6, so that the heat is recycled, the energy consumption is reduced, and the funds are saved.
The safety detection unit 3 includes a hydrogen purity and impurity detection device 27, an environmental hydrogen concentration detection device 28, a hydrogen storage pressure detection device 29, an audible and visual alarm device 30, a nitrogen purge device 31, a vehicle tank status detection device, a control unit 33, and a long tube trailer 34.
The hydrogen purity and impurity detection device 27 is arranged between the pressure reducing valve 15 and the first air valve 23, a part of the hydrogen flows into the hydrogen purity and impurity detection device 27 to detect the purity of the flowing hydrogen after flowing out of the pressure reducing valve 15, and when the detection is qualified, the first air valve 23 is opened to enable the residual hydrogen to flow into the first air valve 23; when the detected hydrogen does not meet the technical standard of the fuel hydrogen for vehicles, the control unit 33 controls the hydrogen discharge reaction unit 1 to stop, and the audible and visual alarm device 30 gives a warning to check until the purity of the hydrogen and the detection of impurities reach the standard.
The environmental hydrogen concentration detection device 28 is distributed above the hydrogenation machine 32, each hydrogen storage tank, the hydrogen discharge reactor 7 and other devices, and is used for detecting the air concentration, when the hydrogen is leaked and the hydrogen concentration in the air exceeds the standard, the environmental hydrogen concentration detection device 28 sends a signal, the control unit 33 controls the starting of an audible and visual alarm, the control of the stopping of the hydrogen discharge reactor 7, the stopping of filling and evacuating of personnel, and the starting of the nitrogen purging device 31;
the pressure of the nitrogen purging device 31 is 0MPa-0.3MPa, the purity of the nitrogen is not less than 99.8 percent, the oxygen content is not more than 0.2 percent, the gas flow rate is not less than 20m/s, a white paint plate is arranged at the exhaust port, and the inner plate is free of rust or other impurities.
The storage tank pressure detection device is used for detecting the pressure in each level of hydrogen storage tank and sending a signal to the control unit 33 to control the start and stop of each compressor and the air valve between the storage tanks.
The vehicle storage tank state detection device is arranged at the gun head of the hydrogenation machine 32, is connected with an interface of the vehicle storage tank when the vehicle enters the station, acquires the pressure and the temperature of hydrogen in the storage tank, and sends signals to the control unit 33, so that the control unit 33 controls the pressure boosting unit 2, the precooling device 39 and the hydrogenation machine 32 to fill the vehicle.
The long tube trailer 34 is a trailer with the capacity of 20MPa, and the long tube trailer 34 is connected with the sequence control panel 22, so that on one hand, when the filling amount of the vehicle is too small from the station, the hydrogen is injected into the long tube trailer 34 when the first hydrogen storage tank group 19 or the second hydrogen storage tank group 20 is overloaded; on the other hand, the hydrogen supply system can also be used as a hydrogen supply mother station to supply hydrogen to a small-scale hydrogen adding station in a certain transportation distance, fully utilizes the supply capacity of the hydrogen adding station and maximizes the economic benefit of the hydrogen adding station.
When the hydrogen production and hydrogenation station in the organic liquid station is used, hydrogen is prepared through the hydrogen discharge reaction unit 1, then the hydrogen is conveyed to the pressure boosting unit 2, the hydrogen in the pressure boosting unit 2 is respectively stored in the first hydrogen storage tank group 19 and the second hydrogen storage tank group 20, then the sequence control disc 22 is rotated firstly according to a required hydrogen injection vehicle so that the hydrogen in the first hydrogen storage tank group 19 flows out, the hydrogen in the first hydrogen storage tank group 19 is precooled and then is filled into the vehicle, and hydrogenation can be stopped when the hydrogen pressure in the vehicle reaches the maximum design pressure; when the hydrogen pressure in the vehicle reaches 35MPa and does not reach the maximum design pressure of the vehicle, the sequence control panel 22 is rotated to enable the hydrogen in the second hydrogen storage tank set 20 to flow out, and the hydrogen in the second hydrogen storage tank set 20 is pre-cooled and then filled into the vehicle until the hydrogen pressure in the vehicle reaches the maximum design pressure of the vehicle.
The hydrogen production and hydrogenation station in the organic liquid station can directly prepare the organic liquid in the hydrogen-rich organic liquid storage tank into hydrogen when in use, so that the efficiency is improved, the self-production and self-sales are realized, and meanwhile, compared with the hydrogen, the organic liquid has higher density, larger one-time transportation amount and lower transportation cost; the strategy of two-stage compression of the medium-pressure compressor and the high-pressure compressor and the grading gas taking of the first hydrogen storage tank group and the second hydrogen storage tank group can effectively reduce the overall compression energy consumption, and in addition, the design of double filling pressures ensures that the hydrogen station can fill various hydrogen fuel cell automobiles; the long tube trailer can effectively ensure that the hydrogen adding station can cope with the situation of rapid increase of demand and insufficient hydrogen releasing reaction capacity, and a large hydrogen preparing and adding station can radiate to a plurality of hydrogen adding stations in a certain range for use, thereby improving hydrogen supplying capacity and reducing hydrogen preparing cost.
Example 2 of hydrogen production and hydrogen addition station in an organic liquid station provided by the invention:
the differences from example 1 are mainly that:
in embodiment 1, the hydrogen discharge reaction unit further comprises a heating device for providing a heat source for the hydrogen discharge reactor, a gas flowmeter for detecting the hydrogen amount generated by the gas-liquid separator, and a one-way valve connected to the hydrogen outlet end of the hydrogen purification device, wherein the other end of the one-way valve is connected with a gas buffer tank, the hydrogen outlet end of the gas buffer tank is connected with a safety valve and a pressure reducing valve, and the pressure reducing valve is connected with the pressure increasing unit.
In this embodiment, the heating device, the gas flowmeter, the check valve, the gas buffer tank, the safety valve, and the pressure reducing valve may not be provided.
Example 3 of hydrogen production and hydrogen addition station in organic liquid station provided by the invention:
the differences from example 1 are mainly that:
in embodiment 1, the booster unit includes a low-pressure compressor, a low-pressure tank set, a medium-pressure compressor, a first hydrogen tank set, a second hydrogen tank set, a high-pressure compressor, four air valves and a sequential control panel connected together, the low-pressure compressor is connected with a pressure reducing valve of the hydrogen release reaction unit, the set pressure of the first hydrogen tank set is smaller than the set pressure of the second hydrogen tank set, the first hydrogen tank set and the second hydrogen tank set are connected in parallel, and the tail ends of the first hydrogen tank set and the second hydrogen tank set are connected with the sequential control panel, and the air valves include a first air valve, a second air valve, a third air valve and a fourth air valve.
In this embodiment, only one compressor and one hydrogen storage tank group can be provided.
Example 4 of hydrogen production and hydrogen addition station in organic liquid station provided by the invention:
the differences from example 1 are mainly that:
in embodiment 1, the safety detection unit further comprises an audible and visual alarm device and a nitrogen purging device, wherein the audible and visual alarm device and the nitrogen purging device are used for giving an alarm when the hydrogen concentration detected by the environmental hydrogen concentration detection device exceeds the standard, and simultaneously purging and cleaning hydrogen in the space, and the safety detection unit further comprises a vehicle storage tank state detection device which is arranged at the end part of the hydrogenation machine gun head so as to detect the hydrogen pressure in the vehicle hydrogen storage tank.
In this embodiment, the audible and visual alarm device and the nitrogen purge device may not be provided.
Example 5 of hydrogen production and hydrogen addition station in organic liquid station provided by the invention:
the differences from example 1 are mainly that:
in embodiment 1, the low pressure compressor, the medium pressure compressor and the high pressure compressor are all connected with a compressor heat exchange module, and the compressor heat exchange module is connected with a heating device to transfer the converted heat into the heating device.
In this embodiment, the compressor heat exchange module may not be provided, and heat generated by the low-pressure compressor, the medium-pressure compressor, and the high-pressure compressor may be directly discharged.
Example 6 of hydrogen production and hydrogen addition station in organic liquid station provided by the invention:
the differences from example 1 are mainly that:
in example 1, a tube trailer is connected to a sequence control panel.
In this embodiment, a long tube trailer can also be connected to the medium pressure compressor.
Example 7 of hydrogen production and hydrogen addition station in organic liquid station provided by the invention:
the differences from example 1 are mainly that:
in example 1, a spare low pressure tank set is also connected in parallel with the low pressure tank set.
In this embodiment, the spare low-pressure tank group may not be provided.
The invention provides an embodiment 1 of a control method of a hydrogen production and hydrogen adding station in an organic liquid station, which comprises the following steps:
comprising the steps of, as shown in fig. 1 to 4:
s1, decomposing hydrogen-rich organic liquid into hydrogen by using a hydrogen release reaction unit;
s2, hydrogen flows to a pressure reducing valve through a hydrogen purifying device and a gas buffer tank;
s3, after the hydrogen passes through the pressure reducing valve, a part of the hydrogen flows into the hydrogen purity and impurity detecting device, and the rest flows to the first air valve;
s4, after the hydrogen purity and impurity detection device is detected to be qualified, a first air valve is opened to enable the hydrogen to flow into the low-pressure compressor;
s5, after being compressed by the low-pressure compressor, hydrogen flows into the low-pressure storage tank set, when the low-pressure storage tank set reaches the inlet pressure of the low-pressure compressor, the second air valve and the fourth air valve are opened, the hydrogen is discharged along the low-pressure storage tank set and flows into the second hydrogen storage tank set after being compressed by the medium-pressure compressor and the high-pressure compressor, when the second hydrogen storage tank set reaches the rated hydrogen storage amount, the high-pressure compressor is closed, the fourth air valve is closed, the third air valve is opened, and the hydrogen is compressed into the first hydrogen storage tank set by the medium-pressure compressor;
s6, during filling, firstly taking out the hydrogen in the first hydrogen storage tank group through the sequence control panel, filling after precooling the taken-out hydrogen, taking out the hydrogen in the second hydrogen storage tank group through the sequence control panel when the hydrogen pressure of the vehicle storage tank reaches the maximum design pressure of the first hydrogen storage tank group, and filling after precooling the taken-out hydrogen until the hydrogen pressure of the vehicle storage tank reaches the maximum design pressure;
s7, inputting hydrogen into the long tube trailer through the sequence control panel, and then supplying hydrogen to the small-scale hydrogen adding station within a certain transportation distance through the long tube trailer.
Example 2 of a control method provided by the present invention:
the differences from example 1 are mainly that:
in example 1, the pressure storage tank set, the backup low pressure tank set, the first hydrogen storage tank set, and the second hydrogen storage tank set each include at least one low pressure tank, at least one medium pressure tank, and at least one high pressure tank.
In this embodiment, the pressure tank group, the spare low-pressure tank group, the first hydrogen tank group, and the second hydrogen tank group can also include only one hydrogen tank.
It will be further understood by those skilled in the art from the foregoing description of the present specification that terms such as "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate an azimuth or a positional relationship, are based on the azimuth or the positional relationship shown in the drawings of the present specification, which are merely for the purpose of facilitating the explanation of the aspects of the present invention and simplifying the description, and do not explicitly or implicitly refer to devices or elements having to have the specific azimuth, to be constructed and operated in the specific azimuth, and thus the azimuth or positional relationship terms described above should not be interpreted or construed as limiting the aspects of the present invention.
In addition, in the description of the present specification, the meaning of "plurality" means at least two, for example, two, three or more, etc., unless specifically defined otherwise.

Claims (9)

1. The hydrogen production hydrogenation station in the organic liquid station is characterized by comprising a hydrogen discharge reaction unit for generating hydrogen, wherein the hydrogen discharge reaction unit comprises a hydrogen-rich organic liquid storage tank, a feed pump, a hydrogen discharge reactor and a gas-liquid separator which are sequentially connected, the hydrogen discharge reactor is used for removing the hydrogen of the organic liquid in the hydrogen-rich organic liquid storage tank, a liquid outlet of the gas-liquid separator is connected with a hydrogen-poor organic liquid storage tank, and a gas outlet of the gas-liquid separator is connected with a hydrogen purification device;
the pressure boosting unit is connected to the hydrogen discharge reaction unit and comprises a compressor for pressurizing hydrogen, and the pressure boosting unit also comprises a hydrogen storage tank for storing the hydrogen compressed by the compressor;
the safety detection unit comprises a hydrogen purity and impurity detection device, an environmental hydrogen concentration detection device, a hydrogen storage pressure detection device and a control unit, wherein the hydrogen purity and impurity detection device is used for detecting hydrogen discharged by the hydrogen discharge reaction unit, the environmental hydrogen concentration detection device is used for detecting the concentration of hydrogen in air, and the hydrogen storage pressure detection device is used for detecting the pressure of gas in the storage tank.
2. The hydrogen production and hydrogenation station in an organic liquid station according to claim 1, wherein the hydrogen discharge reaction unit further comprises a heating device for providing a heat source for the hydrogen discharge reactor, a gas flowmeter for detecting the hydrogen amount generated by the gas-liquid separator, and a one-way valve connected to the hydrogen outlet end of the hydrogen purification device, the other end of the one-way valve is connected with a gas buffer tank, the hydrogen outlet end of the gas buffer tank is connected with a safety valve and a pressure reducing valve, and the pressure reducing valve is connected with the pressure increasing unit.
3. The hydrogen and hydrogen station in an organic liquid station according to claim 2, wherein the pressure boosting unit comprises a low-pressure compressor, a low-pressure tank set, a medium-pressure compressor, a first hydrogen tank set, a second hydrogen tank set, a high-pressure compressor, four air valves and a sequential control panel which are connected together, the low-pressure compressor is connected with the pressure reducing valve of the hydrogen release reaction unit, the set pressure of the first hydrogen tank set is smaller than the set pressure of the second hydrogen tank set, the first hydrogen tank set and the second hydrogen tank set are connected in parallel, and the tail ends of the first hydrogen tank set and the second hydrogen tank set are connected with the sequential control panel, and the air valves comprise a first air valve, a second air valve, a third air valve and a fourth air valve.
4. A hydrogen and hydrogen station in an organic liquid station as claimed in claim 3, wherein the safety detection unit further comprises an audible and visual alarm device and a nitrogen purging device, the audible and visual alarm device and the nitrogen purging device are used for giving an alarm when the hydrogen concentration detected by the environmental hydrogen concentration detection device exceeds the standard, and simultaneously purging and cleaning hydrogen in the space, and the safety detection unit further comprises a vehicle storage tank state detection device which is arranged at the end part of the hydrogen machine gun head so as to detect the hydrogen pressure in the hydrogen storage tank of the vehicle.
5. An in-plant hydrogen and hydrogen plant as claimed in claim 4 wherein the low pressure compressor, the medium pressure compressor and the high pressure compressor are each connected to a compressor heat exchange module and the compressor heat exchange module is connected to the heating means to transfer the converted heat to the heating means.
6. An in-organic-liquid-station hydrogen-production hydrogen-addition station as in claim 4 wherein said safety-detection unit further comprises a long tube trailer coupled to the sequence-control-dial, said long tube trailer for supplying hydrogen to the hydrogen-addition station within a set distance.
7. An in-organic liquid station hydrogen production and hydrogen addition station as in claim 4 wherein said low pressure tank farm is further connected in parallel with a backup low pressure tank farm.
8. A control method of a hydrogen production hydrogenation station in an organic liquid station is characterized by comprising the following steps:
s1, removing hydrogen in an organic liquid through a hydrogen release reaction unit, pressurizing by a compressor, and storing in a hydrogen storage tank, wherein the hydrogen storage tank comprises a low-pressure hydrogen storage tank group, a first hydrogen storage tank group and a second hydrogen storage tank group, and the hydrogen storage pressure of the first hydrogen storage tank group is smaller than that of the second hydrogen storage tank group;
s2, during filling, firstly taking out the hydrogen in the first hydrogen storage tank group through the sequence control panel, filling after precooling the taken-out hydrogen, taking out the hydrogen in the second hydrogen storage tank group through the sequence control panel when the hydrogen pressure of the vehicle storage tank reaches the maximum design pressure of the first hydrogen storage tank group, and filling after precooling the taken-out hydrogen until the hydrogen pressure of the vehicle storage tank reaches the maximum design pressure;
s3, inputting hydrogen into the long tube trailer through the sequence control panel, and then supplying hydrogen to the small-scale hydrogen adding station within a certain transportation distance through the long tube trailer.
9. A method for controlling a hydrogen and hydrogen plant in an organic liquid plant as claimed in claim 8 wherein the low pressure tank set, the first hydrogen tank set, and the second hydrogen tank set each comprise at least one low pressure tank, at least one medium pressure tank, and at least one high pressure tank.
CN202310924372.2A 2023-07-25 2023-07-25 Hydrogen production hydrogenation station in organic liquid station and control method thereof Pending CN116697272A (en)

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CN202310924372.2A CN116697272A (en) 2023-07-25 2023-07-25 Hydrogen production hydrogenation station in organic liquid station and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310924372.2A CN116697272A (en) 2023-07-25 2023-07-25 Hydrogen production hydrogenation station in organic liquid station and control method thereof

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