CN111609309A - Skid-mounted hydrogenation station - Google Patents
Skid-mounted hydrogenation station Download PDFInfo
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- CN111609309A CN111609309A CN202010549982.5A CN202010549982A CN111609309A CN 111609309 A CN111609309 A CN 111609309A CN 202010549982 A CN202010549982 A CN 202010549982A CN 111609309 A CN111609309 A CN 111609309A
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- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 142
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 173
- 239000001257 hydrogen Substances 0.000 claims abstract description 161
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 161
- 239000007789 gas Substances 0.000 claims abstract description 101
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 238000013461 design Methods 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 46
- 238000004880 explosion Methods 0.000 claims description 22
- 238000013022 venting Methods 0.000 claims description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 8
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005429 filling process Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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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
- 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
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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
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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
- F17C13/04—Arrangement or mounting of valves
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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
-
- 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
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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
- 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
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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
- 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
- F17C2205/0341—Filters
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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
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
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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
- 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
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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
- 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
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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
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/06—Fluid distribution
- F17C2265/063—Fluid distribution for supply of refueling stations
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a skid-mounted hydrogenation station which comprises a container, and a gas discharging column, a hydrogen pressurization system, a hydrogenation machine, a station control system and a high-pressure hydrogen storage cylinder group which are arranged in the container and connected through a connecting pipeline, wherein the interior of the container is divided into a hydrogen storage cylinder group area, a compressor area and a hydrogenation area by a partition plate, parts of the high-pressure hydrogen storage cylinder group, the gas discharging column and the hydrogenation system are arranged in the hydrogen storage cylinder group area, parts of the hydrogen pressurization system, the station control system and the hydrogenation system are arranged in the compressor area, and the hydrogenation machine is arranged in the hydrogenation area. The skid-mounted hydrogenation station has the advantages of high concentration, integrated design, small occupied area, small installation amount, quick use, convenience in transportation and transfer and the like.
Description
Technical Field
The invention belongs to the technical field of hydrogen energy sources, and particularly relates to a skid-mounted hydrogen station.
Background
With the increasing prominence of global greenhouse effect problems and the encouragement of national policies on the development and utilization of hydrogen energy, more and more hydrogen energy vehicles are put on the market, and an infrastructure-hydrogenation station which provides a matched hydrogenation function for the hydrogen energy vehicles also comes into play as a necessary matched implementation. In view of the high land cost and capital cost of a fixed type hydrogenation station under the current land market condition of large and small amount of land, the modularized, high-integration, safe and reliable hydrogenation equipment is more suitable for the market of the fuel cell automobile in the early development stage.
Compared with an open hydrogenation machine, the skid-mounted hydrogenation station has the advantages of being highly centralized, integrally designed, small in occupied area, small in installation amount, fast in use, convenient to transport and transfer and the like, and the skid-mounted hydrogenation station with good safety and high reliability is provided for the use requirements of the skid-mounted hydrogenation station.
Disclosure of Invention
The invention solves the technical problem of providing the skid-mounted hydrogen station which has good safety, high reliability, high concentration and convenient transportation and transfer.
The skid-mounted hydrogen filling station is characterized by comprising a container, and an air discharging column, a hydrogen pressurizing system, a hydrogen filling system, a hydrogenation machine, a station control system and a high-pressure hydrogen storage bottle group which are arranged in the container and connected through a connecting pipeline, wherein the interior of the container is divided into a hydrogen storage bottle group area, a compressor area and a hydrogenation area by a partition plate, partial devices of the high-pressure hydrogen storage bottle group, the air discharging column and the hydrogenation system are arranged in the hydrogen storage bottle group area, partial devices of the hydrogen pressurizing system, the station control system and the hydrogenation system are arranged in the compressor area, and the hydrogenation machine is arranged in the hydrogenation area.
Preferably, the thickness of the partition plate in the container is larger than or equal to 2mm, the top of the container is provided with an explosion venting top, the explosion venting top adopts a structure with a high front part and a low back part, the front part of the explosion venting top is connected with the container through an explosion venting bolt, the back part of the explosion venting top is hinged with the container through a hinge, the whole explosion venting top can be detached and has a rain and snow prevention function, the explosion venting top is opened and rapidly releases hydrogen in the container under the condition that hydrogen in the container leaks and explodes, and the tops of the container in the hydrogen storage cylinder group area, the compressor area and the hydrogenation area are provided with hydrogen leakage detectors.
Preferably, the gas discharging column is an external gas source inlet, the external gas source comprises a compressed air source, a nitrogen gas source and a high-pressure hydrogen gas source of the tube bundle vehicle, the gas discharging column comprises a hose, a pressure gauge, a pressure reducer, a safety valve, a ball valve, a one-way valve and a needle valve, the compressed air source is connected to the gas discharging column through the hose and enters the positive-pressure cabin of the hydrogenation machine after being decompressed by the pressure reducer, the nitrogen gas source is connected to the gas discharging column through the hose and supplies gas to the compressor and the solenoid valve of the hydrogenation system after being decompressed, the safety valve is arranged on a bypass in front of the nitrogen gas source inlet decompressor and is opened and emptied when the pressure of the inlet of the nitrogen gas source is overpressure, the high-pressure hydrogen gas source of the tube bundle vehicle is respectively connected with the pneumatic ball valve of the compressor and the pneumatic ball valve of the hydrogenation system after passing through the hose, the bypass at the high-pressure hydrogen gas source inlet of the tube bundle vehicle is provided with a safety valve, the safety valve is opened to exhaust when the pressure of the high-pressure hydrogen gas source inlet is overpressure, and the three air inlet pipelines are provided with pressure gauges for monitoring the inlet pressure at any time.
Further preferably, hydrogen pressurization system includes the compressor, business turn over gas hose and cooling system, this hydrogen pressurization system around respectively with unload gas column tube bank car pipeline and hydrogenation system hydrogen storage bottle group link for with the low pressure air supply pressure to give high pressure hydrogen storage bottle group air feed behind the high pressure air supply, the displacement that produces when the vibrations that the work of compressor produced is mainly compensated to the business turn over gas hose, cooling system is for causing when gas temperature rises to cool off when the high pressure air supply is pressurized to the low pressure air supply, hydrogen pressurization system installs in sled dress station compressor area.
Preferably, the hydrogenation system is a pipeline system for supplying gas to the hydrogenation machine from the hydrogen storage cylinder group and the tube bundle vehicle, the hydrogenation system comprises a safety valve, a one-way valve, a ball valve, a pressure gauge, a pressure sensor, a filter, a pneumatic ball valve, an electromagnetic valve and a needle valve, the hydrogenation system is divided into three parallel gas inlet pipelines, one pipeline draws gas from a high-pressure hydrogen gas source of the gas discharge column tube bundle vehicle, the other two pipelines draw gas from a compressor outlet of the hydrogen pressurization system, the safety valve is arranged on a bypass before the compressor outlet pipeline enters the hydrogenation system and is used for preventing pressure overpressure, the two pipelines of the compressor enter the hydrogenation system through the one-way valve and then are connected with the two pipelines of the high-pressure cylinder hydrogen storage group in parallel gas supply, the rear ends of the three parallel gas inlet pipelines are respectively provided with the filter, the pneumatic ball valve and the, the air inlet of the electromagnetic valve is supplied with air by a compressed air source of the tube bundle vehicle, the air outlet of the electromagnetic valve is connected with the corresponding pneumatic ball valves, the electromagnetic valve is controlled by a station control system, the air path switch is controlled by the pneumatic ball valves after three parallel pipelines are connected in series to form an assembly hydrogen pipeline, a safety valve and a sampling port are arranged in front of the pneumatic ball valves after the three parallel pipelines are connected in series, the sampling port pipeline is controlled by the ball valves and the needle valves, and the outlets of the two safety valves are connected with an assembly.
Preferably, the hydrogenation machine is used for safely filling high-pressure hydrogen from a hydrogen storage gas source into a vehicle-mounted hydrogen storage bottle of a fuel cell vehicle in a hydrogenation station, and comprises a mass flow meter, a pull-off valve, a hydrogenation gun and a positive pressure cabin, a total hydrogen supply pipeline of a hydrogenation system enters the hydrogenation machine and then is connected with the mass flow meter, a ball valve and enters the hydrogenation gun after the pull-off valve, the hydrogenation gun is connected with a vehicle filling port, a pressure gauge, a pressure sensor and a manual emptying port are arranged on a bypass before the hydrogen supply pipeline enters the pull-off valve, the manual emptying port is manually controlled by the ball valve and a needle valve to be switched, the hydrogenation gun and the pull-off valve are connected with a total emptying pipeline, an electric control part of the hydrogenation machine is a touch screen, the touch screen is arranged in the positive pressure cabin, the positive pressure cabin is provided with a compressed air source by an air discharge column ballast, an electromagnetic valve, the positive pressure cabin is provided with a pressure gauge for monitoring the pressure in the cabin.
Preferably, the station control system is used for controlling the whole hydrogenation process and safety protection, and consists of a PLC system and a fire alarm and gas detection system, wherein the PLC system is respectively connected with a pressure sensor and an electromagnetic valve in the hydrogenation system, and the pressure sensor, the electromagnetic valve and a mass flow meter in the hydrogenation system through lines; the opening pressure of the nitrogen source safety valve is higher than the maximum design pressure of nitrogen inlet, and the opening pressure of the high-pressure hydrogen source safety valve of the tube bundle vehicle is higher than the gas supply pressure of the tube bundle vehicle; the opening pressure of the safety valve of the outlet pipeline of the compressor is higher than the outlet pressure of the compressor and lower than the maximum hydrogen supply pressure, the opening pressure of a front bypass safety valve of the pneumatic ball valve is consistent with the opening pressure of the safety valve of the outlet pipeline of the compressor after the three parallel pipelines are connected in series, the high-pressure hydrogen gas source of a gas unloading column tube bank in the three parallel inlet pipelines is a low-pressure gas supply pipeline, the high-pressure gas supply pipeline is connected with two cylinder groups in the hydrogen storage cylinder group, and the high-pressure gas supply pipeline is connected with a single cylinder group of the hydrogen storage cylinder group; the high-pressure hydrogen storage cylinder group is used for storing a low-pressure gas source after being pressurized by a hydrogen pressurization system and mainly comprises a plurality of high-pressure hydrogen storage cylinders, and the number of the high-pressure hydrogen storage cylinders is not less than 3.
Preferably, the connecting pipelines are divided into a high-pressure hydrogen pipeline, a low-pressure hydrogen pipeline, an emptying pipeline, a nitrogen pipeline and a compressed air pipeline, wherein the high-pressure hydrogen pipeline is a hydrogen supply pipeline from a hydrogen pressurization system to a hydrogenation system, a hydrogen supply pipeline from the hydrogenation system to a hydrogenation gun of a hydrogenation machine, and a hydrogen storage cylinder group to the hydrogenation system; the low-pressure hydrogen pipeline supplies gas to the hydrogenation system and the compressor gas supply pipeline part for the gas discharging column tube bundle vehicle; the emptying pipeline is an emptying pipeline, the gas discharging column, the hydrogen pressurization system, the hydrogenation machine and the high-pressure hydrogen storage bottle are all connected with the emptying pipeline in parallel, and a flame arrester is arranged at the outlet of the emptying pipeline; a pneumatic ball valve in the nitrogen pipeline hydrogenation system drives gas, and a pressure reducer is arranged at the inlet of the nitrogen pipeline to adjust the pressure of the inlet; the compressed air pipeline mainly provides protective gas for the positive pressure cabin, and the positive pressure cabin is a closed cavity and is internally provided with a touch screen electrical component.
The skid-mounted hydrogen station is characterized by comprising the following specific hydrogen processes: after the hydrogen bonding is pressed down, opening SV203 and SV204 electromagnetic valves, namely controlling a high-pressure pipeline electromagnetic valve and a main pipeline electromagnetic valve, closing the SV203 and SV204 electromagnetic valves in sequence after 1 second, reading pressure, when the pressure is more than 1MPa, the hydrogenation is started, otherwise, a low-pressure indication is given, the hydrogenation is stopped, SV201 and SV204 electromagnetic valves are opened in sequence, namely, controlling the low-pressure pipeline electromagnetic valve and the main pipeline electromagnetic valve, closing the SV204 electromagnetic valve when P =10MPa, opening the SV204 electromagnetic valve after 30 seconds, if the flow rate ratio is less than 20 percent, the flow rate ratio is the ratio of the real-time gas flow rate or gas flow rate in the filling process measured by the mass flow meter to the gas flow rate or gas flow rate when the electromagnetic valve is opened, closing the SV201 electromagnetic valve, opening the SV202 electromagnetic valve after 30 seconds, when the flow rate ratio is less than 35%, the SV202 solenoid valve is closed, the SV203 solenoid valve is opened after 15 seconds, when the pressure reaches the rated hydrogenation pressure, the SV203 and SV203 electromagnetic valves are closed, and the hydrogenation is finished.
Compared with the prior art, the invention has the following beneficial effects:
1. compared with a hydrogenation station, the skid-mounted hydrogenation station has the advantages of high concentration, integrated design, small occupied area, small installation amount, quick investment and use, convenience in transportation and transfer and the like;
2. different from the prior skid-mounted hydrogen station, the middle-high pressure hydrogen cylinder group is integrated in the container, so that the integrity is better, and the hydrogen can be added without an external hydrogen supply trailer;
3. according to the invention, the high-voltage hydrogen storage bottle group, the electrified device and the station control system are arranged in the container in a partitioned manner, so that the safety is ensured to the greatest extent;
4. the invention adopts the design of explosive-unloading top at the top of the container, which can reduce the destructiveness to the minimum when the hydrogen explosion happens;
5. the invention is provided with safety valves at all the key positions of pressure, and the rear-end devices or hydrogenation vehicles are damaged by the overpressure of the pressure.
Drawings
FIG. 1 is a flow diagram of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The technical scheme of the invention is described in detail by combining the attached drawings, and the skid-mounted hydrogen filling station is characterized by comprising a container, and an air discharging column, a hydrogen pressurizing system, a hydrogen filling system, a hydrogenation machine, a station control system and a high-pressure hydrogen storage bottle group which are arranged in the container and connected through a connecting pipeline, wherein the container is internally divided into a hydrogen storage bottle group area, a compressor area and a hydrogenation area by a partition plate; the thickness of the internal partition plate of the container is larger than or equal to 2mm, the top of the container is provided with an explosion venting top, the explosion venting top adopts a structure with a high front part and a low rear part, the front part of the explosion venting top is connected with the container through an explosion venting bolt, the rear part of the explosion venting top is hinged with the container through a hinge, the whole explosion venting top can be detached and has a rain and snow prevention function, the explosion venting top is opened and rapidly releases hydrogen in the container under the condition that the hydrogen in the container leaks and explodes, and the container tops of the hydrogen storage cylinder group area, the compressor area and the hydrogenation area are all provided with hydrogen leakage detectors.
The invention relates to an air discharging column which is an external air source inlet, the external air source comprises a compressed air source, a nitrogen source and a high-pressure hydrogen source of a tube bundle vehicle, the air discharging column comprises a hose, a pressure gauge, a pressure reducer, a safety valve, a ball valve, a one-way valve and a needle valve, the compressed air source is connected into the air discharging column through the hose, is decompressed by the pressure reducer and then enters a positive pressure cabin of a hydrogenation machine, the nitrogen source is connected into the air discharging column through the hose, is decompressed by the pressure reducer and then supplies air to a compressor and an electromagnetic valve of a hydrogenation system, the safety valve is arranged on a bypass in front of the nitrogen source inlet decompressor, is opened and emptied when the pressure of the inlet of the nitrogen source is over-pressure, the high-pressure hydrogen source of the tube bundle vehicle is respectively connected with a pneumatic ball valve of the compressor and the hydrogenation system after passing through the hose, the bypass at the high-pressure hydrogen gas source inlet of the tube bundle vehicle is provided with a safety valve, the safety valve is opened to exhaust when the pressure of the high-pressure hydrogen gas source inlet is overpressure, and the three air inlet pipelines are provided with pressure gauges for monitoring the inlet pressure at any time.
The hydrogen pressurization system comprises a compressor, an air inlet and outlet hose and a cooling system, wherein the front and the back of the hydrogen pressurization system are respectively connected with an air discharge column tube bundle vehicle pipeline and a hydrogen storage bottle group of a hydrogenation system and used for supplying air to the high-pressure hydrogen storage bottle group after a low-pressure air source is pressurized to a high-pressure air source, the air inlet and outlet hose is mainly used for compensating displacement generated when the compressor vibrates during working, the cooling system is used for cooling when the gas temperature rises due to the pressurization of the low-pressure air source to the high-pressure air source, and the hydrogen pressurization system is arranged in a compressor area of a skid-mounted station.
The hydrogenation system is a pipeline system for supplying gas to a hydrogenation machine from a hydrogen storage bottle group and a tube bundle vehicle, and comprises a safety valve, a one-way valve, a ball valve, a pressure gauge, a pressure sensor, a filter, a pneumatic ball valve, an electromagnetic valve and a needle valve, wherein the hydrogenation system is divided into three parallel gas inlet pipelines, one pipeline of the three parallel gas inlet pipelines is used for introducing gas from a high-pressure hydrogen gas source of the gas discharge column tube bundle vehicle, the other two pipelines of the three parallel gas inlet pipelines are used for introducing gas from a compressor outlet of a hydrogen pressurization system, the safety valve is arranged on a bypass before the compressor outlet pipeline enters the hydrogenation system and is used for preventing pressure overpressure, the two pipelines of the compressor are connected with two pipelines of the high-pressure hydrogen storage bottle group after entering the hydrogenation system through the one-way valve in parallel, the rear ends of the three parallel gas, the air inlet of the electromagnetic valve is supplied with air by a compressed air source of the tube bundle vehicle, the air outlet of the electromagnetic valve is connected with the corresponding pneumatic ball valves, the electromagnetic valve is controlled by a station control system, the air path switch is controlled by the pneumatic ball valves after three parallel pipelines are connected in series to form an assembly hydrogen pipeline, a safety valve and a sampling port are arranged in front of the pneumatic ball valves after the three parallel pipelines are connected in series, the sampling port pipeline is controlled by the ball valves and the needle valves, and the outlets of the two safety valves are connected with an assembly.
The invention relates to a hydrogenation machine which is used for safely filling high-pressure hydrogen from a hydrogen storage gas source into a vehicle-mounted hydrogen storage bottle of a fuel cell vehicle in a hydrogenation station, and comprises a mass flow meter, a pull-off valve, a hydrogenation gun and a positive pressure cabin, wherein a total hydrogen supply pipeline of a hydrogenation system enters the hydrogenation machine, is connected with the mass flow meter, a ball valve and enters the hydrogenation gun after entering the pull-off valve, the hydrogenation gun is connected with a filling port of the vehicle, a pressure gauge, a pressure sensor and a manual emptying port are arranged on a bypass before entering the pull-off valve, the manual emptying port is manually controlled by the ball valve and a needle valve to be switched, the hydrogenation gun and the pull-off valve are connected with a total emptying pipeline, an electric control part of the hydrogenation machine is a touch screen, the touch screen is arranged in the positive pressure cabin, a gas discharge column provides a compressed air source for the positive pressure cabin, an electromagnetic, the positive pressure cabin is provided with a pressure gauge for monitoring the pressure in the cabin.
The station control system is used for controlling the whole hydrogenation process and safety protection, and consists of a PLC system and a fire alarm and gas detection system, wherein the PLC system is respectively connected with a pressure sensor and an electromagnetic valve in the hydrogenation system, and the pressure sensor, the electromagnetic valve and a mass flow meter in the hydrogenation system through lines; the opening pressure of the nitrogen source safety valve is higher than the maximum design pressure of nitrogen inlet, and the opening pressure of the high-pressure hydrogen source safety valve of the tube bundle vehicle is higher than the gas supply pressure of the tube bundle vehicle; the opening pressure of the safety valve of the outlet pipeline of the compressor is higher than the outlet pressure of the compressor and lower than the maximum hydrogen supply pressure, the opening pressure of a front bypass safety valve of the pneumatic ball valve is consistent with the opening pressure of the safety valve of the outlet pipeline of the compressor after the three parallel pipelines are connected in series, the high-pressure hydrogen gas source of a gas unloading column tube bank in the three parallel inlet pipelines is a low-pressure gas supply pipeline, the high-pressure gas supply pipeline is connected with two cylinder groups in the hydrogen storage cylinder group, and the high-pressure gas supply pipeline is connected with a single cylinder group of the hydrogen storage cylinder group; the high-pressure hydrogen storage cylinder group is used for storing a low-pressure gas source after being pressurized by a hydrogen pressurization system and mainly comprises a plurality of high-pressure hydrogen storage cylinders, and the number of the high-pressure hydrogen storage cylinders is not less than 3.
The connecting pipeline is divided into a high-pressure hydrogen pipeline, a low-pressure hydrogen pipeline, an emptying pipeline, a nitrogen pipeline and a compressed air pipeline, wherein the high-pressure hydrogen pipeline is a hydrogen supply pipeline from a hydrogen pressurization system to a hydrogenation system, a hydrogen supply pipeline from the hydrogenation system to a hydrogenation gun of a hydrogenation machine, and a hydrogen storage cylinder group to the hydrogenation system; the low-pressure hydrogen pipeline supplies gas to the hydrogenation system and the compressor gas supply pipeline part for the gas discharging column tube bundle vehicle; the emptying pipeline is an emptying pipeline, the gas discharging column, the hydrogen pressurization system, the hydrogenation machine and the high-pressure hydrogen storage bottle are all connected with the emptying pipeline in parallel, and a flame arrester is arranged at the outlet of the emptying pipeline; a pneumatic ball valve in the nitrogen pipeline hydrogenation system drives gas, and a pressure reducer is arranged at the inlet of the nitrogen pipeline to adjust the pressure of the inlet; the compressed air pipeline mainly provides protective gas for the positive pressure cabin, and the positive pressure cabin is a closed cavity and is internally provided with a touch screen electrical component.
The specific hydrogenation process of the skid-mounted hydrogenation station comprises the following steps: after the hydrogen bonding is pressed down, opening SV203 and SV204 electromagnetic valves, namely controlling a high-pressure pipeline electromagnetic valve and a main pipeline electromagnetic valve, closing the SV203 and SV204 electromagnetic valves in sequence after 1 second, reading pressure, when the pressure is more than 1MPa, the hydrogenation is started, otherwise, a low-pressure indication is given, the hydrogenation is stopped, SV201 and SV204 electromagnetic valves are opened in sequence, namely, controlling the low-pressure pipeline electromagnetic valve and the main pipeline electromagnetic valve, closing the SV204 electromagnetic valve when P =10MPa, opening the SV204 electromagnetic valve after 30 seconds, if the flow rate ratio is less than 20 percent, the flow rate ratio is the ratio of the real-time gas flow rate or gas flow rate in the filling process measured by the mass flow meter to the gas flow rate or gas flow rate when the electromagnetic valve is opened, closing the SV201 electromagnetic valve, opening the SV202 electromagnetic valve after 30 seconds, when the flow rate ratio is less than 35%, the SV202 solenoid valve is closed, the SV203 solenoid valve is opened after 15 seconds, when the pressure reaches the rated hydrogenation pressure, the SV203 and SV203 electromagnetic valves are closed, and the hydrogenation is finished.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, the invention further resides in various changes and modifications which fall within the scope of the invention as claimed.
Claims (9)
1. The utility model provides a sled dress formula hydrogenation station, its characterized in that includes the container and sets up in the container through the column of unloading, hydrogen pressurization system, hydrogenation machine, station control system and the high-pressure hydrogen storage bottle group that connecting line links to each other, and the container is inside to be separated into by the baffle and to store up hydrogen bottle group district, compressor district and hydrogenation district three part, the high-pressure hydrogen storage bottle group, unload column and hydrogenation system part device and install in hydrogen storage bottle group district, hydrogen pressurization system, station control system and hydrogenation system part device are installed in the compressor district, the hydrogenation machine is installed in the hydrogenation district.
2. The skid-mounted hydrogen station of claim 1, wherein: the thickness of the internal partition plate of the container is larger than or equal to 2mm, the top of the container is provided with an explosion venting top, the explosion venting top adopts a structure with a high front part and a low rear part, the front part of the explosion venting top is connected with the container through an explosion venting bolt, the rear part of the explosion venting top is hinged with the container through a hinge, the whole explosion venting top can be detached and has a rain and snow prevention function, the explosion venting top is opened and rapidly releases hydrogen in the container under the condition that the hydrogen in the container leaks and explodes, and the container tops of the hydrogen storage cylinder group area, the compressor area and the hydrogenation area are all provided with hydrogen leakage detectors.
3. The skid-mounted hydrogen station of claim 1, wherein: the gas discharging column is an external gas source inlet, the external gas source comprises a compressed air source, a nitrogen gas source and a tube bundle vehicle high-pressure hydrogen gas source, the gas discharging column comprises a hose, a pressure gauge, a pressure reducer, a safety valve, a ball valve, a one-way valve and a needle valve, the compressed air source is connected into the gas discharging column through the hose, is decompressed by the pressure reducer and then enters a positive pressure cabin of the hydrogenation machine, the nitrogen gas source is connected into the gas discharging column through the hose, is decompressed by the pressure reducer and then supplies gas to the compressor and an electromagnetic valve of the hydrogenation system, the safety valve is arranged in a bypass in front of the nitrogen gas source inlet decompressor, is opened and emptied when the pressure of the nitrogen gas source inlet is overpressure, the tube bundle vehicle high-pressure hydrogen gas source is respectively connected with the compressor air inlet and a pneumatic ball valve of the hydrogenation system after passing through the ball valve, the, the bypass at the high-pressure hydrogen gas source inlet of the tube bundle vehicle is provided with a safety valve, the safety valve is opened to exhaust when the pressure of the high-pressure hydrogen gas source inlet is overpressure, and the three air inlet pipelines are provided with pressure gauges for monitoring the inlet pressure at any time.
4. The skid-mounted hydrogen station of claim 1, wherein: the hydrogen pressurization system comprises a compressor, an air inlet and outlet hose and a cooling system, the hydrogen pressurization system is connected with an air discharging column tube bundle vehicle pipeline and a hydrogen storage bottle group of a hydrogenation system respectively in the front and at the back, the hydrogen pressurization system is used for supplying air to a high-pressure hydrogen storage bottle group after a low-pressure air source is pressurized to the high-pressure air source, the air inlet and outlet hose is mainly used for compensating displacement generated by the compressor during vibration generated by the compressor during working, the cooling system is used for cooling when the gas temperature rises due to pressurization of the low-pressure air source to the high-pressure air source, and the hydrogen pressurization system is installed in.
5. The skid-mounted hydrogen station of claim 1, wherein: the hydrogenation system is a pipeline system for supplying gas to a hydrogenation machine from a hydrogen storage bottle group and a tube bundle vehicle, and comprises a safety valve, a one-way valve, a ball valve, a pressure gauge, a pressure sensor, a filter, a pneumatic ball valve, an electromagnetic valve and a needle valve, wherein the hydrogenation system is divided into three parallel gas inlet pipelines, one pipeline of the three parallel gas inlet pipelines is used for introducing gas from a high-pressure hydrogen gas source of the gas discharge column tube bundle vehicle, the other two pipelines of the three parallel gas inlet pipelines are used for introducing gas from a compressor outlet of a hydrogen pressurization system, the safety valve is arranged on a bypass before the compressor outlet pipeline enters the hydrogenation system and is used for preventing pressure overpressure, the two pipelines of the compressor are connected with two pipelines of the high-pressure hydrogen storage bottle group in parallel after entering the hydrogenation system through the one-way valve, the rear end of the three, the air inlet of the electromagnetic valve is supplied with air by a compressed air source of the tube bundle vehicle, the air outlet of the electromagnetic valve is connected with the corresponding pneumatic ball valves, the electromagnetic valve is controlled by a station control system, the air path switch is controlled by the pneumatic ball valves after three parallel pipelines are connected in series to form an assembly hydrogen pipeline, a safety valve and a sampling port are arranged in front of the pneumatic ball valves after the three parallel pipelines are connected in series, the sampling port pipeline is controlled by the ball valves and the needle valves, and the outlets of the two safety valves are connected with an assembly.
6. The skid-mounted hydrogen station of claim 1, wherein: the hydrogenation machine is a device for safely filling high-pressure hydrogen from a hydrogen storage gas source into a vehicle-mounted hydrogen storage bottle of a fuel cell vehicle in a hydrogenation station, this hydrogenation machine includes mass flow meter, draw off the valve, hydrogenation rifle and malleation cabin, hydrogenation system total hydrogen supply pipeline gets into and connects mass flow meter behind the hydrogenation machine, the ball valve, draw and get into the hydrogenation rifle behind the off-valve, the hydrogenation rifle is connected with car filling port, the bypass is provided with the manometer before getting into the break-off valve, pressure sensor and manual evacuation mouth, manual evacuation mouth is by the ball valve, the manual control switch of needle valve, hydrogenation rifle and draw off the valve and be connected with total evacuation pipeline, hydrogenation machine electrical control part is the touch-sensitive screen, the touch-sensitive screen is installed in the malleation cabin, the malleation cabin provides the compressed air supply by the gas column of unloading, the business turn over is just being provided with solenoid valve control gas circuit switch, the bypass is provided with pressure sensor control inlet pressure before getting into the malleation cabin.
7. The skid-mounted hydrogen station of claim 1, wherein: the station control system is used for controlling the whole hydrogenation process and safety protection, and consists of a PLC system and a fire alarm and gas detection system, wherein the PLC system is respectively connected with a pressure sensor and an electromagnetic valve in the hydrogenation system, and the pressure sensor, the electromagnetic valve and a mass flow meter in the hydrogenation system through lines; the opening pressure of the nitrogen source safety valve is higher than the maximum design pressure of nitrogen inlet, and the opening pressure of the high-pressure hydrogen source safety valve of the tube bundle vehicle is higher than the gas supply pressure of the tube bundle vehicle; the opening pressure of the safety valve of the outlet pipeline of the compressor is higher than the outlet pressure of the compressor and lower than the maximum hydrogen supply pressure, the opening pressure of a front bypass safety valve of the pneumatic ball valve is consistent with the opening pressure of the safety valve of the outlet pipeline of the compressor after the three parallel pipelines are connected in series, the high-pressure hydrogen gas source of a gas unloading column tube bank in the three parallel inlet pipelines is a low-pressure gas supply pipeline, the high-pressure gas supply pipeline is connected with two cylinder groups in the hydrogen storage cylinder group, and the high-pressure gas supply pipeline is connected with a single cylinder group of the hydrogen storage cylinder group; the high-pressure hydrogen storage cylinder group is used for storing a low-pressure gas source after being pressurized by a hydrogen pressurization system and mainly comprises a plurality of high-pressure hydrogen storage cylinders, and the number of the high-pressure hydrogen storage cylinders is not less than 3.
8. The skid-mounted hydrogen station of claim 1, wherein: the connecting pipelines are divided into a high-pressure hydrogen pipeline, a low-pressure hydrogen pipeline, an emptying pipeline, a nitrogen pipeline and a compressed air pipeline, wherein the high-pressure hydrogen pipeline is a hydrogen supply pipeline from a hydrogen pressurization system to a hydrogenation system, a hydrogen supply pipeline from the hydrogenation system to a hydrogenation gun of a hydrogenation machine and a hydrogen storage cylinder group to the hydrogenation system; the low-pressure hydrogen pipeline supplies gas to the hydrogenation system and the compressor gas supply pipeline part for the gas discharging column tube bundle vehicle; the emptying pipeline is an emptying pipeline, the gas discharging column, the hydrogen pressurization system, the hydrogenation machine and the high-pressure hydrogen storage bottle are all connected with the emptying pipeline in parallel, and a flame arrester is arranged at the outlet of the emptying pipeline; a pneumatic ball valve in the nitrogen pipeline hydrogenation system drives gas, and a pressure reducer is arranged at the inlet of the nitrogen pipeline to adjust the pressure of the inlet; the compressed air pipeline mainly provides protective gas for the positive pressure cabin, and the positive pressure cabin is a closed cavity and is internally provided with a touch screen electrical component.
9. The skid-mounted hydrogen station according to claim 1, wherein the specific hydrogen process of the skid-mounted hydrogen station is as follows: after the hydrogen bonding is pressed down, opening SV203 and SV204 electromagnetic valves, namely controlling a high-pressure pipeline electromagnetic valve and a main pipeline electromagnetic valve, closing the SV203 and SV204 electromagnetic valves in sequence after 1 second, reading pressure, when the pressure is more than 1MPa, the hydrogenation is started, otherwise, a low-pressure indication is given, the hydrogenation is stopped, SV201 and SV204 electromagnetic valves are opened in sequence, namely, controlling the low-pressure pipeline electromagnetic valve and the main pipeline electromagnetic valve, closing the SV204 electromagnetic valve when P =10MPa, opening the SV204 electromagnetic valve after 30 seconds, if the flow rate ratio is less than 20 percent, the flow rate ratio is the ratio of the real-time gas flow rate or gas flow rate in the filling process measured by the mass flow meter to the gas flow rate or gas flow rate when the electromagnetic valve is opened, closing the SV201 electromagnetic valve, opening the SV202 electromagnetic valve after 30 seconds, when the flow rate ratio is less than 35%, the SV202 solenoid valve is closed, the SV203 solenoid valve is opened after 15 seconds, when the pressure reaches the rated hydrogenation pressure, the SV203 and SV203 electromagnetic valves are closed, and the hydrogenation is finished.
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