CN114104242A - Hybrid power system of liquid ammonia hydrogen production ship - Google Patents
Hybrid power system of liquid ammonia hydrogen production ship Download PDFInfo
- Publication number
- CN114104242A CN114104242A CN202111374388.8A CN202111374388A CN114104242A CN 114104242 A CN114104242 A CN 114104242A CN 202111374388 A CN202111374388 A CN 202111374388A CN 114104242 A CN114104242 A CN 114104242A
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- China
- Prior art keywords
- hydrogen
- ammonia
- liquid ammonia
- hydrogen production
- buffer tank
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 177
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 239000001257 hydrogen Substances 0.000 title claims abstract description 83
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 83
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 59
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000003860 storage Methods 0.000 claims abstract description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 8
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 6
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims description 29
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 abstract description 15
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003115 supporting electrolyte Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/20—Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/20—Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units
- B63H2021/202—Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units of hybrid electric type
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Fuel Cell (AREA)
Abstract
The invention aims to provide a hybrid power system of a ship for producing hydrogen from liquid ammonia, which comprises a liquid ammonia hydrogen production system and a liquid ammonia storage tank, wherein the liquid ammonia hydrogen production system comprises a hydrogen production shell, electrolyte solution is filled in the hydrogen production shell, an anode and a cathode are arranged in the hydrogen production shell, the anode and the cathode are both connected with an electrolysis power supply, and an ammonia inlet, a nitrogen outlet and a hydrogen outlet are respectively arranged on the hydrogen production shell; the liquid ammonia holding vessel connects switch solenoid valve, and switch solenoid valve connects ammonia relief pressure valve, flow controller respectively, and ammonia buffer tank is connected to the ammonia relief pressure valve, and the ammonia entry of liquid ammonia hydrogen manufacturing system is connected to the ammonia buffer tank, and nitrogen gas exit linkage crosses the water tank, crosses the water tank and connects heat pump and nitrogen gas holding vessel respectively, hydrogen exit linkage hydrogen buffer tank. The invention realizes the production and use of hydrogen by introducing the ammonia electrolyte battery, can control the amount of hydrogen according to the load, and solves the problem of safe storage of hydrogen on ships.
Description
Technical Field
The invention relates to a power system, in particular to a hydrogen production hybrid power system.
Background
Global earth surface temperature is always in an ascending trend, which has great influence on the global ecosystem and the social economic system, and the artificial increase of greenhouse gases is the main driving force of global warming. With the concern of reducing the emission of greenhouse gases, stricter requirements are put on the emission of transportation industries such as ships. Therefore, in the face of increasing environmental regulatory pressures, not only is it necessary to improve the energy efficiency of ships from technical and operational aspects, but it is also necessary to further adjust the structure of the marine fuel. The novel alternative fuel is a new choice for realizing low carbon emission reduction in the shipping industry. Among them, ammonia does not contain carbon element, only produces clean and pollution-free water and nitrogen gas after complete combustion, and has high hydrogen content, and is considered as one of potential engine alternative fuels.
Compared with other traditional fuels, the ammonia fuel has the problems of higher ignition point and minimum ignition energy, slow combustion speed, low combustion temperature and the like, and needs to use a pilot fuel. Meanwhile, researches find that the combustion speed of the hydrogen is high, and the combustion can be improved and accelerated by doping the hydrogen when the ammonia is combusted. However, the long-term safe storage of hydrogen has been a challenge in its use.
Disclosure of Invention
The invention aims to provide a ship hybrid power system for producing hydrogen by using liquid ammonia, which is used for producing required hydrogen by using ammonia as a substitute fuel of an engine and regarding the ammonia as a carrier of hydrogen, namely, the hydrogen is supplied to the engine and a hydrogen fuel cell.
The purpose of the invention is realized as follows:
the invention relates to a hybrid power system of a ship for producing hydrogen by using liquid ammonia, which is characterized in that: the device comprises a liquid ammonia hydrogen production system and a liquid ammonia storage tank, wherein the liquid ammonia hydrogen production system comprises a hydrogen production shell, electrolyte solution is filled in the hydrogen production shell, an anode and a cathode are arranged in the hydrogen production shell, the anode and the cathode are both connected with an electrolysis power supply, and an ammonia inlet, a nitrogen outlet and a hydrogen outlet are respectively arranged on the hydrogen production shell; the liquid ammonia holding vessel connects switch solenoid valve, and switch solenoid valve connects ammonia relief pressure valve, flow controller respectively, and ammonia buffer tank is connected to the ammonia relief pressure valve, and the ammonia entry of liquid ammonia hydrogen manufacturing system is connected to the ammonia buffer tank, and nitrogen gas exit linkage crosses the water tank, crosses the water tank and connects heat pump and nitrogen gas holding vessel respectively, hydrogen exit linkage hydrogen buffer tank.
The present invention may further comprise:
1. the electrolytic power supply is connected with the storage battery through the power switch, the storage battery is respectively connected with the marine electric equipment and the fuel cell, the fuel cell is sequentially connected with the DC/AC converter and the propulsion motor, the propulsion motor is connected with the gear box through the first clutch, and the gear box is connected with the propeller.
2. Still include the engine, the engine includes the cylinder, the piston is located the cylinder, the crank connecting rod is connected to the piston below, the camshaft is connected to the crank connecting rod, the cylinder sets up the intake pipe, the outlet duct, the liquid ammonia sprayer passes through ammonia common rail union coupling flow controller, the outlet duct sets up the air outlet valve rod with the cylinder junction, the intake pipe sets up the air inlet valve rod with the cylinder junction, set up the hydrogen sprayer in the intake pipe, intake pipe end connection air inlet, set up the relief valve between air inlet and the hydrogen sprayer, the hydrogen buffer tank is connected to the hydrogen sprayer.
3. The camshaft is connected with the gear box through a second clutch.
The invention has the advantages that:
1. by introducing the ammonia electrolyte battery, the hydrogen can be produced and used immediately, the amount of hydrogen can be controlled according to the load, and the problem of safe storage of the hydrogen on the ship is solved.
2. The prepared hydrogen gas is not required to be separated, has high purity, and can be directly supplied to a hydrogen fuel cell for use, thereby supplying power to a motor and other electric equipment.
3. The nitrogen is possibly mixed with ammonia, the nitrogen is purified and stored through the filtering water tank to play a role in purging, and the ammonia is dissolved in water to obtain an ammonia water solution which can be supplied to a heat pump system to be used as a cooling working medium, so that the energy is fully and reasonably utilized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a liquid ammonia-diesel dual-fuel engine;
fig. 3 is a schematic structural diagram of a liquid ammonia hydrogen production system.
Detailed Description
The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:
referring to fig. 1 to 3, fig. 1 is a schematic view of the overall structure of the present invention, and a liquid ammonia hybrid power system includes: liquid ammonia and hydrogen supply system, liquid ammonia-diesel oil dual-fuel engine system, hydrogen fuel cell system, hybrid power system. The device comprises a liquid ammonia storage tank 1, a high-pressure pump 2, an ammonia common rail pipe 3, a diesel engine 4, a switch electromagnetic valve 5, an ammonia pressure reducing valve 6, an ammonia buffer tank 7, a flow controller 8, a heat pump 9, a filter water tank 10, a nitrogen storage tank 11, an ammonia electrolyte battery 12, a power switch 13, a hydrogen buffer tank 14, a storage battery 15, marine electric equipment 16, a fuel battery 17, an air humidifier 18, a DC/AC converter 19, a propulsion motor 20, a propeller 21, a gear box 22, a clutch 23 and a valve switch and flow control system 24.
Fig. 2 is a specific schematic diagram of a liquid ammonia-diesel dual-fuel engine system, which includes a piston 16, a camshaft 25, a crank connecting rod 26, a cylinder 27, an air outlet valve rod 28, an air outlet valve rod spring 29, an air inlet valve rod 30, an air inlet valve rod spring 31, an air outlet 32, an air inlet 33, a liquid ammonia injector 34, a hydrogen injector 35, a safety valve 36, and an air inlet 37.
Fig. 3 is a schematic diagram of an ammonia electrolyte cell, which includes a nitrogen outlet 38, an ammonia inlet 39, a hydrogen outlet 40, a cathode 41, an anode 42, an electrolysis power supply 43, and an electrolyte solution 44.
The liquid ammonia storage tank 1 generally stores liquid ammonia at room temperature in a high-pressure manner, so as to meet the requirement of the whole hybrid power system on ammonia fuel. When the whole system starts to operate, the control system 24 first sends a signal to open the on-off solenoid valve 5, so that liquid ammonia is allowed to flow out from the liquid ammonia storage tank 1, and the supply of fuel to the system is started. The liquid ammonia is divided into two different fuel supply paths after flowing out from the liquid ammonia storage tank 1, wherein one path is used for supplying fuel to the diesel engine 4 so as to meet the power output of the diesel engine 4; and the other for supplying fuel to the ammonia electrolyte cell 12, thereby achieving the production of hydrogen gas from ammonia. When supplying liquid ammonia fuel to the diesel engine 4, the liquid ammonia passes through the flow controller 8, while the control system 24 controls the flow controller 8 to adjust the flow rate of the liquid ammonia in accordance with the magnitude of the engine load. Then the liquid ammonia reaches the high-pressure pump 2 to realize the pressurization of the liquid ammonia, so that the liquid ammonia reaches the pressure required by the injection. The liquid ammonia fuel after the pressurization gets into ammonia common rail pipe 3, is equipped with the relief valve on the common rail pipe, when pressure was too high, can make liquid ammonia reflux to liquid ammonia holding vessel 1 through the relief valve and come the reduce pressure. Meanwhile, an ammonia sensor is also arranged on the common rail pipe and used for detecting and judging whether ammonia leaks or not, so that corresponding measures can be taken in time. Liquid ammonia in the ammonia common rail pipe 1 is supplied to a liquid ammonia injector 34 through a high-pressure pipeline, and is injected into the cylinder for combustion through the control of an electromagnetic valve in the injector.
When liquid ammonia is used as a hydrogen energy carrier to produce hydrogen, the liquid ammonia flowing out of the liquid ammonia storage tank 1 passes through the on-off solenoid valve 5 to reach the ammonia pressure reducing valve 6, thereby reducing the pressure of the liquid ammonia to a pressure range suitable for the operation of the ammonia electrolyte battery 12. Meanwhile, the liquid ammonia after pressure reduction enters the ammonia buffer tank 7. Setting up of ammonia buffer tank 7 can play the effect of temporary storage liquid ammonia to when guaranteeing the sudden grow of liquid ammonia demand, can in time supply liquid ammonia, the buffer tank can also play certain steady voltage effect simultaneously. When hydrogen gas is to be produced, liquid ammonia flows out of the ammonia buffer tank 7, and enters the ammonia inlet 39 of the ammonia electrolyte cell 12 after the flow rate is adjusted by the flow controller 8. The system can control the flow controller 8 through the control system 24 to adjust the ammonia flow in real time according to the difference of the hydrogen demand. The produced hydrogen gas will enter the hydrogen buffer tank 14 from the hydrogen outlet 40 of the ammonia electrolyte cell, and will function as the ammonia buffer tank 7. The specific hydrogen production process of the ammonia electrolyte battery can be summarized as follows: ammonia enters from the ammonia inlet to the anode 42 of the electrolyte cell where it undergoes an oxidation reaction by electrolysis to produce nitrogen gas and a reduction reaction at the cathode 41 to produce hydrogen gas. The anode material of the electrolyte battery adopts Pt, the cathode material adopts Pt/C, and potassium hydroxide or sodium hydroxide is added as a supporting electrolyte. The nitrogen produced by the ammonia electrolyte cell may be mixed with ammonia gas, and therefore the nitrogen flowing out of the nitrogen outlet 38 is purified by the filtration tank 10. The ammonia gas forms an ammonia solution in the water tank 10 due to the characteristic of being easily soluble in water, thereby realizing the purification of nitrogen. The obtained ammonia solution can be supplied to the heat pump 9 and used as a refrigerant. The purified nitrogen can be stored in the nitrogen storage tank 11 and can play a role of purging when needed. The specific reaction of the ammonia electrolyte battery is as follows:
anode: 2NH3+6OH-→N2+6H2O+6e-
Cathode: 6H2+6e-→3H2+6OH-
And (3) total reaction: 2N3→N2+3H2
The utilization of hydrogen in the overall system is also divided into two pathways. One of them is to use hydrogen as a combustion-supporting fuel when the diesel engine is operated. At this time, hydrogen gas flows out from the hydrogen buffer tank 14, passes through the flow rate controller 8, reaches the hydrogen injector 35, and is injected into the intake passage at the time of the intake stroke of the engine by the control of the solenoid valve in the injector. At the same time, air is filtered from the air intake 37, flows through the safety valve to the intake port 33, and hydrogen gas is mixed with the air and enters the cylinder 27 with the air to be combusted. Another way is to supply the produced hydrogen gas to the hydrogen fuel cell 17. Since the purity of the hydrogen gas produced by the ammonia electrolyte cell 12 is high, the hydrogen gas flows out of the hydrogen buffer tank 14, and the hydrogen gas can be directly supplied to the hydrogen fuel cell 17 for use after the flow controller 8 adjusts the required flow. The hydrogen gas reaches the cell anode after entering the hydrogen fuel cell, while the air passes through the humidifier 18 to the cell cathode, and power generation is started by the action of the catalyst. The electrical energy produced by the fuel cell can be used to provide the ammonia electrolyte cell with the electrical energy required for electrolysis. A part of the excess electric energy can be stored in the accumulator 15, from which it can be obtained when the consumer 16 needs to be supplied. Another part may power propulsion motor 20 via DC/AC converter 19. The motor 20 and the diesel engine 4 form a hybrid power system, and the clutch can be controlled to adopt a mode of motor independent propulsion at low load, namely the motor directly drives the propeller 21 by a transmission shaft through the gear box 22; at high loads, the clutch 23 can be controlled such that the diesel engine 4 and the electric motor 20 act together on the gearbox 22, thereby driving the propeller 21.
Claims (4)
1. Liquid ammonia hydrogen manufacturing ship hybrid power system, characterized by: the device comprises a liquid ammonia hydrogen production system and a liquid ammonia storage tank, wherein the liquid ammonia hydrogen production system comprises a hydrogen production shell, electrolyte solution is filled in the hydrogen production shell, an anode and a cathode are arranged in the hydrogen production shell, the anode and the cathode are both connected with an electrolysis power supply, and an ammonia inlet, a nitrogen outlet and a hydrogen outlet are respectively arranged on the hydrogen production shell; the liquid ammonia holding vessel connects switch solenoid valve, and switch solenoid valve connects ammonia relief pressure valve, flow controller respectively, and ammonia buffer tank is connected to the ammonia relief pressure valve, and the ammonia entry of liquid ammonia hydrogen manufacturing system is connected to the ammonia buffer tank, and nitrogen gas exit linkage crosses the water tank, crosses the water tank and connects heat pump and nitrogen gas holding vessel respectively, hydrogen exit linkage hydrogen buffer tank.
2. The hybrid power system of a ship for producing hydrogen from liquid ammonia according to claim 1, which is characterized in that: the electrolytic power supply is connected with the storage battery through the power switch, the storage battery is respectively connected with the marine electric equipment and the fuel cell, the fuel cell is sequentially connected with the DC/AC converter and the propulsion motor, the propulsion motor is connected with the gear box through the first clutch, and the gear box is connected with the propeller.
3. The hybrid power system of a ship for producing hydrogen from liquid ammonia according to claim 1, which is characterized in that: still include the engine, the engine includes the cylinder, the piston is located the cylinder, the crank connecting rod is connected to the piston below, the camshaft is connected to the crank connecting rod, the cylinder sets up the intake pipe, the outlet duct, the liquid ammonia sprayer passes through ammonia common rail union coupling flow controller, the outlet duct sets up the air outlet valve rod with the cylinder junction, the intake pipe sets up the air inlet valve rod with the cylinder junction, set up the hydrogen sprayer in the intake pipe, intake pipe end connection air inlet, set up the relief valve between air inlet and the hydrogen sprayer, the hydrogen buffer tank is connected to the hydrogen sprayer.
4. The hybrid power system of a ship for producing hydrogen from liquid ammonia according to claim 3, which is characterized in that: the camshaft is connected with the gear box through a second clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111374388.8A CN114104242A (en) | 2021-11-19 | 2021-11-19 | Hybrid power system of liquid ammonia hydrogen production ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111374388.8A CN114104242A (en) | 2021-11-19 | 2021-11-19 | Hybrid power system of liquid ammonia hydrogen production ship |
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| CN114104242A true CN114104242A (en) | 2022-03-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115370469A (en) * | 2022-05-19 | 2022-11-22 | 哈尔滨工程大学 | Ammonia-hydrogen integrated multi-source energy hybrid power system |
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2021
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| CN113202660A (en) * | 2021-06-03 | 2021-08-03 | 哈尔滨工程大学 | Fuel supply system of single ammonia fuel marine diesel engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115370469A (en) * | 2022-05-19 | 2022-11-22 | 哈尔滨工程大学 | Ammonia-hydrogen integrated multi-source energy hybrid power system |
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