WO2023040191A1 - Système d'alimentation de navire à teneur nulle en carbone et procédé d'entraînement de navire - Google Patents

Système d'alimentation de navire à teneur nulle en carbone et procédé d'entraînement de navire Download PDF

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WO2023040191A1
WO2023040191A1 PCT/CN2022/076896 CN2022076896W WO2023040191A1 WO 2023040191 A1 WO2023040191 A1 WO 2023040191A1 CN 2022076896 W CN2022076896 W CN 2022076896W WO 2023040191 A1 WO2023040191 A1 WO 2023040191A1
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Prior art keywords
temperature
changing device
heat exchanger
energy
evaporator
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PCT/CN2022/076896
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English (en)
Chinese (zh)
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吴加林
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成都佳灵绿色能源有限责任公司
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Priority claimed from CN202111100989.XA external-priority patent/CN114248899A/zh
Application filed by 成都佳灵绿色能源有限责任公司 filed Critical 成都佳灵绿色能源有限责任公司
Publication of WO2023040191A1 publication Critical patent/WO2023040191A1/fr

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/08—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with working fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • 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

Definitions

  • the invention relates to the technical field of ship power, in particular to a zero-carbon ship power system and a method for driving a ship.
  • a zero-carbon ship power system including a condensation-evaporator, a temperature changing device and a propulsion system, and the condensation-evaporator is used for collecting water Heat energy, the system working fluid absorbs the heat energy and converts it into low-temperature steam, the temperature-changing device is used to convert the low-temperature steam generated by the condensation-evaporator into high-temperature steam, and the propulsion system is used to convert the high-temperature steam generated by the temperature-changing device into The electrical or mechanical energy that drives a ship.
  • the propulsion system includes an all-electric propulsion system
  • the all-electric propulsion system includes a turbo-generator, a propulsion motor and a propeller
  • the high-voltage input end of the turbo-generator communicates with a temperature changing device
  • the turbo-generator The low-pressure output end of the generator communicates with the condensing-evaporator
  • the turbo-generator converts the high-temperature steam generated by the temperature-changing device into electric energy, and at the same time, the exhaust gas energy generated is converted into low-temperature steam through the condensing-evaporator and flows to the temperature-changing device.
  • the electric energy generated by the steam turbine generator drives the propulsion motor, and the propulsion motor drives the propeller to rotate, thereby driving the ship to move.
  • the all-electric propulsion system further includes a propulsion motor governor, the propulsion motor governor is connected in series between the turbogenerator and the propulsion motor, and is used to adjust the speed of the propulsion motor.
  • the zero-carbon marine power system further includes a storage battery, which is connected in series between the turbogenerator and the propulsion motor or between the turbogenerator and the propulsion motor governor, and the turbogenerator supplements the battery Electric energy, the storage battery supplies power to the propulsion motor or the propulsion motor governor.
  • a storage battery which is connected in series between the turbogenerator and the propulsion motor or between the turbogenerator and the propulsion motor governor, and the turbogenerator supplements the battery Electric energy, the storage battery supplies power to the propulsion motor or the propulsion motor governor.
  • the propulsion system includes a mechanical propulsion system
  • the mechanical propulsion system includes a steam turbine and a propeller
  • the high-pressure input end of the steam turbine communicates with the temperature changing device
  • the low-pressure output end of the steam turbine communicates with the condensing-evaporator
  • the steam turbine converts the high-temperature steam generated by the temperature-changing device into mechanical energy
  • the exhaust gas energy is converted into low-temperature steam through the condenser-evaporator and flows to the temperature-changing device.
  • the mechanical energy generated by the steam turbine drives the propeller to rotate, thereby driving the ship to move.
  • the mechanical propulsion system further includes a speed reducer, which is connected in series between the steam turbine and the propeller, and is used to control the output torque of the steam turbine to the propeller.
  • a speed reducer which is connected in series between the steam turbine and the propeller, and is used to control the output torque of the steam turbine to the propeller.
  • turbo-generator and a storage battery
  • the high-voltage input end of the turbo-generator communicates with the temperature changing device
  • the low-voltage output end of the turbo-generator communicates with the condensation-evaporator
  • the turbo-generator generates electricity
  • the electric energy output end of the machine is electrically connected with the storage battery
  • the steam turbine generator converts the high-temperature steam generated by the temperature-changing device into electric energy
  • the exhaust gas energy generated is converted into low-temperature steam through the condensation-evaporator and flows to the temperature-changing device.
  • the electric energy generated by the generator is supplemented to the storage battery, and the storage battery provides electric energy to the temperature changing device.
  • a controller is also included, the controller is connected in series between the turbogenerator and the storage battery, and is used to control the magnitude of the electric energy output by the turbogenerator and the AC/DC conversion.
  • a governor is also included, which is connected in series between the battery and the temperature changing device, and adjusts the amount of electric energy output from the battery to the temperature changing device.
  • the temperature changing device includes a heat exchanger mechanism and a blower
  • the heat exchange mechanism has a low-pressure circuit and a high-pressure circuit
  • the inlet end of the blower communicates with the low-pressure circuit of the heat exchange mechanism
  • the outlet of the blower The end communicates with the high pressure circuit of the heat exchange mechanism.
  • the heat exchange mechanism includes a first heat exchanger, a heat recovery heat exchanger and a second heat exchanger, the heat recovery heat exchanger, the second heat exchanger and a blower are connected in series in sequence, and the first The heat exchanger is connected in parallel with the second heat exchanger.
  • the temperature changing device further includes a temperature regulating valve, which is arranged in the high-pressure circuit of the temperature changing device, and is used to control the flow of high-temperature and high-pressure steam output by the blower between the first heat exchanger and the second heat exchanger. flow distribution, thereby controlling the temperature range of the high-temperature steam output by the first heat exchanger.
  • a temperature regulating valve which is arranged in the high-pressure circuit of the temperature changing device, and is used to control the flow of high-temperature and high-pressure steam output by the blower between the first heat exchanger and the second heat exchanger. flow distribution, thereby controlling the temperature range of the high-temperature steam output by the first heat exchanger.
  • the heat exchange mechanism further includes a third heat exchanger, the third heat exchanger is used to increase the temperature difference between the high pressure circuit and the low pressure circuit at the high temperature end of the second heat exchanger;
  • blower and/or the first heat exchanger and/or the second heat exchanger and/or the third heat exchanger are provided with an insulation layer.
  • a liquid booster pump is also included, the low-pressure inlet port of the liquid booster pump communicates with the condenser-evaporator, the high-pressure outlet port of the liquid booster pump communicates with the temperature changing device, and the liquid booster pump pumps Absorb the system working fluid in the condensing-evaporator, convert the system working fluid into high-pressure liquid, and transmit it to the temperature changing device, and the temperature changing device converts the high-pressure liquid into high-temperature steam.
  • a method for driving a ship by the above-mentioned zero-carbon ship power system including:
  • the heat energy in the water is collected through the condensation-evaporator, and the system working fluid absorbs the heat energy and converts it into low-temperature steam;
  • the low-temperature steam generated by the condensation-evaporator is converted into high-temperature steam through a temperature-changing device;
  • the high-temperature steam generated by the temperature-changing device is converted into electrical energy or mechanical energy through the propulsion system to drive the movement of the ship.
  • the heat energy in the water is collected through the condensation-evaporator, and the system working fluid absorbs the heat energy and converts it into low-temperature steam;
  • the low-temperature steam generated by the condensation-evaporator is converted into high-temperature steam through a temperature-changing device;
  • the high-temperature steam generated by the temperature-changing device is converted into electrical energy or mechanical energy to drive the ship;
  • part of the ambient heat energy can also be directly input between the high-pressure end of the liquid booster pump and the low-temperature inlet end of the temperature-variable device, thereby reducing the capacity of the temperature-variable device and reducing the system cost ;
  • the step of converting the high-temperature steam generated by the temperature changing device into electrical energy or mechanical energy through the propulsion system includes:
  • High-temperature steam is used to drive a turbogenerator to generate electricity
  • the propeller is driven to rotate through the rotation of the propulsion motor.
  • the step of converting the high-temperature steam generated by the temperature changing device into electrical energy or mechanical energy through the propulsion system includes:
  • the steam turbine is driven by high-temperature steam to generate mechanical energy
  • the mechanical energy generated by the steam turbine drives the propeller to rotate.
  • the battery is charged by the electric energy generated by the turbo generator
  • the variable temperature device is powered by a battery.
  • the zero-carbon ship power system of the present invention is designed for the continuous power of the ship, so as to achieve the purpose of providing continuous power for the ship by utilizing the energy in the water and recovering the exhausted energy in the propulsion system.
  • the invention provides all the power for the ship.
  • the zero-carbon ship power system uses the heat in the water as the energy source.
  • the ship is naturally on the water surface and can replenish energy at any time. It completely solves the problems of carbon emissions, water and air pollution caused by fuel-fueled ships, and it is particularly important that there will be no limit on cruising range from now on.
  • the ship can continue to generate electricity no matter in the process of driving or stopping the ship, so the capacity of the battery on the ship can be reduced, and it can only be used to maintain the ability to start at any time. It is then necessary to use oil and liquefied natural gas, so that the operating cost can be greatly reduced to close to zero.
  • the speed governor, the propulsion motor, the turbo generator, and the storage battery are cooled by the cold flow medium to further improve the performance.
  • the volume and weight of the key components are reduced, thereby further reducing the cost.
  • the zero-carbon ship power system of the present invention can also generate electricity when the ship is stopped. In summer, the cabin can be cooled when the ship is stopped, and when the ship is stopped in winter, the cabin can be heated to improve comfort; and the energy input system can be properly adjusted.
  • the capacity configuration of batteries and generators can meet the needs of large passenger ships, large cargo ships, cruise ships and various engineering ships.
  • Fig. 1 is a schematic diagram of an embodiment of the zero-carbon ship power system of the present invention
  • Fig. 2 is a schematic diagram of another embodiment of the zero-carbon ship power system of the present invention.
  • connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components.
  • the present invention provides a zero-carbon ship power system, including a condensing-evaporator, a temperature changing device and a propulsion system , the condensing-evaporator is used to collect heat energy in water, the system working fluid absorbs the heat energy and converts it into low-temperature steam, the temperature changing device is used to convert the low-temperature steam generated by the condensing-evaporator into high-temperature steam, and the propulsion system uses It is used to convert the high-temperature steam generated by the temperature-changing device into electrical energy or mechanical energy for driving the ship.
  • the condensing-evaporator is used to collect heat energy in water
  • the system working fluid absorbs the heat energy and converts it into low-temperature steam
  • the temperature changing device is used to convert the low-temperature steam generated by the condensing-evaporator into high-temperature steam
  • the propulsion system uses It is used to convert the high-temperature steam generated by the temperature-changing device into electrical energy or mechanical energy for driving the ship.
  • the method of driving the ship by the above-mentioned zero-carbon ship power system includes:
  • the heat energy in the water is collected through the condensation-evaporator, and the system working fluid absorbs the heat energy and converts it into low-temperature steam;
  • the low-temperature steam generated by the condensation-evaporator is converted into high-temperature steam through a temperature-changing device;
  • the high-temperature steam generated by the temperature-changing device is converted into electrical energy or mechanical energy through the propulsion system to drive the movement of the ship.
  • Fig. 1 is a schematic diagram of an embodiment of the zero-carbon ship power system of the present invention.
  • the propulsion system of the zero-carbon ship power system is an all-electric propulsion system
  • the all-electric propulsion system includes steam turbine power generation Machine 11, propulsion motor 17 and propeller 18, the high-voltage input end of the turbogenerator 11 communicates with the temperature changing device 2, the low-voltage output end of the turbogenerator 11 communicates with the condensation-evaporator 1, and the steam turbine generator
  • the generator 11 converts the high-temperature steam generated by the temperature-changing device 2 into electric energy, and at the same time, the exhaust energy generated is converted into low-temperature steam through the condensation-evaporator 1 and flows to the temperature-changing device 2.
  • the electric energy generated by the turbogenerator 11 drives the propulsion motor 17 , the propulsion motor 17 drives the propeller 18 to rotate, thereby driving the ship to move.
  • the all-electric propulsion system further includes a propulsion motor governor 16, and the propulsion motor governor 16 is connected in series between the turbogenerator 11 and the propulsion motor 17, and is used to adjust the speed of the propulsion motor 17. Rotating speed.
  • the zero-carbon ship power system further includes a battery 13, and the battery 13 is connected in series between the turbogenerator 11 and the propulsion motor 17 or between the turbogenerator 11 and the propulsion motor governor 16, so The turbo generator 11 supplements electric energy to the storage battery 13 , and the storage battery 13 supplies power to the propulsion motor 17 or the propulsion motor governor 16 .
  • the zero-carbon ship power system further includes a controller 12, the controller 12 is connected in series between the turbo-generator 11 and the storage battery 13, and is used to control the amount of electric energy output by the turbo-generator 11 .
  • the zero-carbon ship power system further includes a governor 14, which is connected in series between the battery 13 and the temperature changing device 2, and adjusts the amount of electric energy output from the battery 13 to the temperature changing device 2.
  • the zero-carbon marine power system further includes a liquid booster pump 10, the low-pressure inlet of the liquid booster pump 10 communicates with the condenser-evaporator 1, and the high-pressure outlet of the liquid booster pump 10 The end communicates with the temperature changing device 2, the liquid booster pump 10 sucks the system working fluid in the condensation-evaporator 1, converts the system working fluid into a high-pressure liquid, and transmits it to the temperature changing device 2, and the temperature changing device 2 will High-pressure liquid is converted into high-temperature steam.
  • the method of driving the ship by the above-mentioned zero-carbon ship power system includes:
  • the heat energy in the water is collected through the condensation-evaporator 1, and the system working fluid absorbs the heat energy and converts it into low-temperature steam;
  • the low-temperature steam generated by the condensation-evaporator 1 is converted into high-temperature steam by the temperature changing device 2;
  • the propeller 18 is driven to rotate by the rotation of the propulsion motor 17, thereby driving the ship to move.
  • the above method also includes:
  • the battery 13 is charged by the electric energy generated by the turbo generator 11;
  • the temperature changing device 2 is powered by the storage battery 13 .
  • FIG 2 is a schematic diagram of another embodiment of the zero-carbon ship power system of the present invention, as shown in Figure 2, the propulsion system of the zero-carbon ship power system is a mechanical propulsion system, and the mechanical propulsion system includes a steam turbine 20 and a propeller 18.
  • the high-pressure input end of the steam turbine 20 communicates with the temperature changing device 2
  • the low-pressure output end of the steam turbine 20 communicates with the condenser-evaporator 1
  • the steam turbine 20 converts the high-temperature steam generated by the temperature changing device 2 into mechanical energy simultaneously
  • the exhaust gas energy is converted into low-temperature steam through the condensing-evaporator 1 and flows to the temperature changing device 2, and the mechanical energy generated by the steam turbine 20 drives the propeller 18 to rotate, thereby driving the ship to move.
  • the mechanical propulsion system further includes a speed reducer 19, which is connected in series between the steam turbine 20 and the propeller 18, and is used to control the output torque of the steam turbine 20 to the propeller 18.
  • the zero-carbon ship power system further includes a turbogenerator 11 and a storage battery 13, the high voltage input end of the turbogenerator 11 communicates with the temperature changing device 2, and the low voltage input end of the turbogenerator 11 The output end communicates with the condensing-evaporator 1, and the electric energy output end of the turbogenerator 11 is electrically connected with the storage battery 13, and the turbogenerator 11 converts the high-temperature steam generated by the temperature changing device 2 into the exhaust gas generated by the electric energy at the same time The energy is converted into low-temperature steam through the condensing-evaporator 1 and flows to the temperature changing device 2 , and the electric energy generated by the turbo generator 11 is supplemented to the battery 13 , and the battery 13 provides electric energy to the temperature changing device 2 .
  • the zero-carbon ship power system further includes a controller 12, the controller 12 is connected in series between the turbo-generator 11 and the storage battery 13, and is used to control the amount of electric energy output by the turbo-generator 11 and AC to DC conversion.
  • the zero-carbon ship power system further includes a governor 14, which is connected in series between the battery 13 and the temperature changing device 2, and adjusts the amount of electric energy output from the battery 13 to the temperature changing device 2.
  • the zero-carbon marine power system further includes a liquid booster pump 10, the low-pressure inlet of the liquid booster pump 10 communicates with the condenser-evaporator 1, and the high-pressure outlet of the liquid booster pump 10 The end communicates with the temperature changing device 2, the liquid booster pump 10 sucks the system working fluid in the condensation-evaporator 1, converts the system working fluid into a high-pressure liquid, and transmits it to the temperature changing device 2, and the temperature changing device 2 will High-pressure liquid is converted into high-temperature steam.
  • the method of driving the ship by the above-mentioned zero-carbon ship power system includes:
  • the heat energy in the water is collected through the condensation-evaporator 1, and the system working fluid absorbs the heat energy and converts it into low-temperature steam;
  • the low-temperature steam generated by the condensation-evaporator 1 is converted into high-temperature steam by the temperature changing device 2;
  • the mechanical energy generated by the steam turbine 20 drives the propeller 18 to rotate, thereby driving the ship to move.
  • the heat energy in the water is collected through the condensation-evaporator, and the system working fluid absorbs the heat energy and converts it into low-temperature steam;
  • the low-temperature steam generated by the condensation-evaporator is converted into high-temperature steam through a temperature-changing device;
  • the high-temperature steam generated by the temperature-changing device is converted into electrical energy or mechanical energy to drive the ship;
  • part of the ambient heat energy can also be directly input between the high-pressure end of the liquid booster pump and the low-temperature inlet end of the temperature-variable device, thereby reducing the capacity of the temperature-variable device and reducing the system cost .
  • the above method also includes:
  • the battery 13 is charged by the electric energy generated by the turbo generator 11;
  • the temperature changing device 2 is powered by the storage battery 13 .
  • the temperature changing device 2 includes a heat exchanger mechanism and a blower 8, and the heat exchange mechanism has a low-pressure circuit and a high-pressure circuit 5, and the inlet end of the blower 8 is connected to the low-pressure circuit of the heat exchange mechanism.
  • the outlet end of the blower 8 communicates with the high pressure circuit 5 of the heat exchange mechanism.
  • the low-temperature steam enters the low-pressure circuit of the heat exchange mechanism, and returns to the high-pressure circuit of the heat exchange mechanism after being pressurized and heated by the blower.
  • the heat exchange mechanism includes a first heat exchanger 3, a heat recovery heat exchanger 4 and a second heat exchanger 7, and the heat recovery heat exchanger 4, the second heat exchanger 7 and a blower 8 in series in sequence, and the first heat exchanger 3 and the second heat exchanger 7 are connected in parallel.
  • the temperature changing device 2 further includes a temperature regulating valve 9, which is arranged in the high-pressure circuit of the temperature changing device, and is used to control the flow of the high-temperature and high-pressure steam output by the blower between the first heat exchanger and the second heat exchanger.
  • the flow distribution between the exchangers, so as to control the temperature range of the high-temperature steam output by the first heat exchanger, that is, the temperature regulating valve is arranged in the high-pressure circuit between the second heat exchanger 7 and the first heat exchanger 3
  • the temperature regulating valve is controlled to meet the change of the flow ratio caused by the change of the output temperature range of the first heat exchanger 3 and the range of the second heat exchanger 7 raising the temperature.
  • the heat exchange mechanism further includes a third heat exchanger 7A, and the third heat exchanger 7A is used to increase the temperature difference between the high pressure circuit 5 and the low pressure circuit at the high temperature end of the second heat exchanger 7 .
  • blower 8 and/or the first heat exchanger 3 and/or the second heat exchanger 7 and/or the third heat exchanger 7A are provided with an insulation layer.
  • the steam turbine generator 11 adopts a steam turbine, and the isentropic efficiency is required to be above 0.88. Its rotating speed is also selected according to the cost-effective target of 3000rpm-25,000rpm, and the power selection can be from 100 kilowatts to 300 megawatts. It can also be composed of several smaller power parallel-connected, for example, a 240-megawatt DC medium-voltage power system on a ship is composed of four 60-megawatt steam turbine generators 11, and at the same time, it is composed of five 20-megawatt propulsion motors 17.
  • the multi-axis tail thruster system of course, can also be used for side thruster, bow thruster, and underwater cantilever propulsion. Due to sufficient electric energy, some advanced technologies can be embodied here. At the same time, with sufficient electric energy, various Any kind of equipment can give full play to its role.
  • the zero-carbon ship power system can automatically meet the high temperature of 50 degrees near the equator, and can also adapt to the low temperature of minus 30 degrees in the north.
  • the zero-carbon ship power system When sailing in the North and South Poles, it must have It has the ability to fetch water from under the ice, and water at 4 degrees is fine. As long as the underwater vehicle can obtain the water source, it can obtain energy:
  • the flow required by the 60MW generator set is:
  • C-specific heat capacity of normal temperature water 4.2kj/kg.K
  • Q is the power of turbogenerator 11, preferably 60MW
  • the main shaft of the steam turbine 20 adopts a magnetic suspension bearing, and the volume and weight of the steam turbine 20 can be greatly reduced.
  • the propulsion system can also use the combination of mechanical propulsion system and all-electric propulsion system to realize hybrid propulsion, which makes the flexibility of the ship unparalleled.
  • adjusting the speed governor 14 can control the speed of the blower 8 , thereby controlling the output power of the turbogenerator 11 .
  • the storage battery 13 is mainly to meet the needs of starting and emergency use, and can be selected according to the size of the ship.
  • the steam turbine generator 11, the controller 12, the storage battery 13 and the governor 14 form a low-voltage or medium-voltage DC power supply system on board.
  • controlling the flow of the external water source 15 into the condenser-evaporator 1 can control the input power of the zero-carbon ship power system, thereby controlling the propulsion speed of the ship.
  • the propulsion system includes an all-electric propulsion system or/and a mechanical propulsion system. If the power is relatively small, the shared steam turbine 20 for power generation can be used; when the power is relatively large, a single or multiple steam turbines 20 can be used. Its temperature changing device 2 can adopt common or independent.
  • the all-electric propulsion system of the zero-carbon ship power system of the present invention is a propulsion system composed of a turbo generator 11, a controller 12, a propulsion motor governor 16, a propulsion motor 17 and a propeller 18, and is suitable for new ships; mechanical
  • the propulsion system is a propulsion system composed of a steam turbine 20, a speed reducer 19 and a propeller 18, and is applicable to the transformation of existing ships.
  • the zero-carbon ship power system of the present invention is suitable for large-scale artificial floating cities on the sea, or underwater submersibles.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

La présente invention concerne un système d'alimentation de navire à teneur nulle en carbone, comprenant un évaporateur à condensation (1), un appareil de changement de température (2) et un système de propulsion, l'évaporateur à condensation (1) étant utilisé pour collecter de l'énergie thermique dans l'eau, et un milieu de travail du système absorbe l'énergie thermique et la transforme ensuite en vapeur à basse température ; l'appareil de changement de température (2) est utilisé pour transformer la vapeur à basse température, qui est générée par l'évaporateur à condensation (1), en vapeur à haute température ; et le système de propulsion est utilisé pour convertir la vapeur à haute température, qui est générée par le dispositif de changement de température (2), en énergie électrique ou énergie mécanique pour entraîner un navire. Le système d'alimentation de navire à teneur nulle en carbone peut utiliser l'énergie dans l'eau pour fournir une puissance continue pour un navire, réduisant ainsi les émissions de carbone, et réduisant également les coûts de fonctionnement.
PCT/CN2022/076896 2021-09-18 2022-02-18 Système d'alimentation de navire à teneur nulle en carbone et procédé d'entraînement de navire WO2023040191A1 (fr)

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CN202111100989.XA CN114248899A (zh) 2021-09-18 2021-09-18 零碳船舶动力系统及驱动船舶的方法
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