CN112848934B - Power supply device for electric ship and method for charging electric ship - Google Patents

Power supply device for electric ship and method for charging electric ship Download PDF

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Publication number
CN112848934B
CN112848934B CN202110028996.7A CN202110028996A CN112848934B CN 112848934 B CN112848934 B CN 112848934B CN 202110028996 A CN202110028996 A CN 202110028996A CN 112848934 B CN112848934 B CN 112848934B
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storage tank
liquid
electrolyte
shipborne
anode
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CN112848934A (en
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黄涛
余龙海
熊建新
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Hunan Fangu New Energy Technology Co ltd
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Hunan Fangu New Energy Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/51—Photovoltaic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/52—Wind-driven generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/32—Waterborne vessels
    • 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
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Cells (AREA)
  • Fuel Cell (AREA)

Abstract

The invention relates to the technical field of ship batteries, and provides a power supply device for a hydraulic electric ship, which comprises: the shipborne flow battery system is arranged on a ship and comprises a shipborne positive storage tank and a shipborne negative storage tank; the port electric pile group is arranged at a port; the liquid discharging storage tank comprises a positive electrode liquid discharging storage tank and a negative electrode liquid discharging storage tank and is used for recovering electrolyte discharged in the shipborne positive electrode storage tank and the shipborne negative electrode storage tank; the liquid supply storage tank comprises a positive liquid supply storage tank and a negative liquid supply storage tank; the liquid supply storage tank is used for supplying full electrolyte to the shipborne anode storage tank and the shipborne cathode storage tank; the pump liquid assemblies are used for connecting the shipborne anode storage tank with the anode liquid unloading storage tank and the anode liquid supply storage tank, and are also used for connecting the shipborne cathode storage tank with the cathode liquid unloading storage tank and the cathode liquid supply storage tank; and the power supply is connected with the port galvanic pile group and is used for charging discharged electrolyte through the port galvanic pile group. The device can charge the flow battery of the electric ship quickly and stably.

Description

Power supply device for electric ship and method for charging electric ship
Technical Field
The invention relates to the technical field of ship batteries, in particular to a power supply device for an electric ship and a method for charging the electric ship.
Background
Currently, the energy crisis and global warming issues are drawing more attention. More than 90% of ships in China adopt diesel engine power systems, the technical grade is low, oil sewage, harmful gas and particles of the girder are generated in the sailing and harboring processes, the noise pollution is serious, and the ecological environment of a water area is seriously influenced. The 'oil to electricity' of the ship is a mode for effectively solving the defect, and the electric ship with low energy consumption, zero emission, low noise and no pollution is an important path for realizing energy conservation, emission reduction and transformation.
Batteries used by most of the existing electric ships mainly comprise a lead-acid battery and a lithium battery, and the lead-acid battery has the advantages of mature technology, stable voltage, low price, stable quality and high reliability; the defects are low specific energy, short service life and frequent routine maintenance. The lithium battery has the advantages of mature technology, small volume, good heat dissipation and endurance functions, and the disadvantages of high price, year-by-year capacity attenuation and hidden danger of fire and explosion.
In order to solve the problems of lead-acid batteries and lithium batteries, the flow battery becomes an important breakthrough in the field of batteries.
Chinese patent application No. 2019105444872 discloses a boats and ships power supply unit who contains iron flow battery, and iron flow battery uses boats and ships short distance power battery's mode as boats and ships power supply unit, can be supporting with wind power generation, photovoltaic power generation, solves the electric ships problem of charging, even when unable outside charging, can on-the-spot configuration charge state electrolyte, realizes that the battery charges in the twinkling of an eye, solves boats and ships outage problem temporarily. The patent does not describe how the ship equipped with the battery is charged, but teaches a method when charging is not possible from the outside, and this method has the following disadvantages: (1) the preparation of the electrolyte can be completed only by professional personnel, and the professional personnel cannot be equipped on the ship in practical application, so that the scheme is difficult to realize; (2) the size and the load of the ship can be increased by the wind power generation and photovoltaic power generation equipment, and the power consumption is increased.
The charging of the ship battery is generally performed by a power grid, a charging device or an offshore mobile charging power supply. The Chinese patent application No. 2019101971782 discloses a ship power supply device and a ship charging system, wherein the electric energy of the ship power supply device is completely from a power grid, the energy consumption of AC/DC or DC/AC conversion among the power grid, a charging device and a ship-mounted battery is large, and the charging time is long.
Therefore, it is desirable to invent a device and a charging method for supplying power to a flow battery of a ship quickly, stably and with low energy consumption.
Disclosure of Invention
The present invention is directed to solving the above-mentioned drawbacks of the prior art, and provides a power supply device for an electric ship and a method for supplying power to an electric ship, which can quickly and stably charge a battery on the electric ship.
As a first aspect of the present invention, there is provided an electric ship power supply device including:
the shipborne flow battery system is arranged on a ship and comprises a shipborne positive storage tank and a shipborne negative storage tank;
the port electric pile group is arranged at a port;
the liquid discharging storage tank is arranged at the port and comprises a positive electrode liquid discharging storage tank and a negative electrode liquid discharging storage tank which are used for recovering electrolyte discharged in the shipborne positive electrode storage tank and the shipborne negative electrode storage tank;
the liquid supply storage tank is arranged at the port and comprises a positive liquid supply storage tank and a negative liquid supply storage tank; the liquid supply storage tank is used for supplying full electrolyte to the shipborne anode storage tank and the shipborne cathode storage tank;
the pump liquid assemblies are arranged at the port and used for connecting the shipborne anode storage tank with the anode liquid discharging storage tank and/or connecting the shipborne anode storage tank with the anode liquid supply storage tank, and also used for connecting the shipborne cathode storage tank with the cathode liquid discharging storage tank and/or connecting the shipborne cathode storage tank with the cathode liquid supply storage tank;
and the power supply is arranged at the port and connected with the port galvanic pile group and used for charging discharged electrolyte through the port galvanic pile group.
According to an example embodiment of the present invention, the power supply device for the electric ship further comprises a charging storage tank, the charging storage tank is connected with the port stack group and comprises a positive charging storage tank and a negative charging storage tank, the positive discharging storage tank is connected with the positive charging storage tank, and the electrolyte can only flow to the positive charging storage tank from the positive discharging storage tank in one direction, the negative discharging storage tank is connected with the negative charging storage tank, and the electrolyte can only flow to the negative charging storage tank from the negative discharging storage tank in one direction; the anode liquid supply storage tank is connected with the anode charging storage tank, electrolyte can only flow to the anode liquid supply storage tank in a one-way mode from the anode charging storage tank, the cathode liquid supply storage tank is connected with the cathode charging storage tank, and electrolyte can only flow to the cathode liquid supply storage tank in a one-way mode from the cathode charging storage tank; or
The port electric piles are connected with the liquid discharging storage tank and the liquid supplying storage tank respectively; or
The port electric pile group is connected with a liquid supply storage tank, the anode liquid supply storage tank is connected with the anode liquid discharge storage tank, electrolyte can only flow to the anode liquid supply storage tank in a one-way mode from the anode liquid discharge storage tank, the cathode liquid supply storage tank is connected with the cathode liquid discharge storage tank, and electrolyte can only flow to the cathode liquid supply storage tank in a one-way mode from the cathode liquid discharge storage tank; or
The port electric pile group is connected with a liquid discharging storage tank, the anode liquid supply storage tank is connected with the anode liquid discharging storage tank, electrolyte can only flow to the anode liquid supply storage tank in a one-way mode from the anode liquid discharging storage tank, the cathode liquid supply storage tank is connected with the cathode liquid discharging storage tank, and electrolyte can only flow to the cathode liquid supply storage tank in a one-way mode from the cathode liquid discharging storage tank.
According to an example embodiment of the invention, the power source comprises a wind generator and/or a photovoltaic module and/or a power grid.
According to an example embodiment of the invention, the power supply adopts a wind power generator and/or a photovoltaic assembly, and also adopts a power grid;
the wind driven generator and/or the photovoltaic assembly are directly connected with the port pile group, the power grid is connected with the port pile group through the AC-DC conversion module, and the wind driven generator and/or the photovoltaic assembly are connected with the power grid through the energy storage converter.
According to an exemplary embodiment of the invention, the power supply device of the electric ship further comprises an energy management system, which is connected with the wind power generator and/or the photovoltaic module, the port electric pile group and the power grid and is used for adjusting the power supply direction of the wind power generator and/or the photovoltaic module and the power grid according to the charging state of the port electric pile group.
When the total electric quantity of the wind driven generator and/or the photovoltaic module can be fully filled with electrolyte and has redundancy, the wind driven generator and/or the photovoltaic module supplies power to a power grid;
when the total electric quantity of the wind power generator and/or the photovoltaic module is not enough to fully charge the electrolyte, the power grid supplies power to the port electric pile group.
According to an example embodiment of the present invention, each set of pump fluid assemblies includes a female connector, a self-priming pump, and a pump fluid hose; the female joint is arranged at one end of the pump liquid hose and is used for being connected with a shipborne anode storage tank or a shipborne cathode storage tank, and the other end of the pump liquid hose is connected with the anode liquid supply storage tank, the cathode liquid supply storage tank, the anode liquid discharge storage tank or the cathode liquid discharge storage tank; the self-priming pump is arranged on the pump liquid hose.
According to an example embodiment of the invention, each of the shipborne positive storage tank and the shipborne negative storage tank comprises a liquid drainage interface, a liquid injection interface and a tank body;
the liquid drainage interface and the liquid injection interface respectively comprise a male connector, a threaded adapter, a locking nut and a hard tube;
one end of the threaded adapter is provided with an external thread, the other end of the threaded adapter is provided with an internal thread, and the middle of the threaded adapter is provided with an annular convex structure; one end of the external thread of the threaded adapter extends into the tank body through a round hole in the top of the tank body; so that the bottom of the annular bulge structure is attached to the top of the tank body;
the locking nut is an internal thread and is matched with the external thread of the threaded adapter to lock the threaded adapter, so that the top of the locking nut is attached to the inner wall of the tank body;
the hard pipe is vertically arranged, the upper end of the hard pipe is fixedly connected with the threaded adapter, and the lower end of the hard pipe extends to be close to the bottom of the tank body;
one end of the male connector is an external thread and is matched with the internal thread of the threaded adapter, and the other end of the male connector is matched with the female connector of the pump liquid assembly.
According to an exemplary embodiment of the present invention, the lower end of the hard pipe is spaced 2-5mm from the bottom of the tank.
According to an example embodiment of the present invention, the male joint, the threaded adapter, the lock nut and the hard pipe are made of anticorrosive materials.
According to an example embodiment of the present invention, the male connector, the threaded joint, the lock nut and the hard pipe are made of PP, PVC or other corrosion-resistant materials.
According to an exemplary embodiment of the present invention, the electrolyte includes a vanadium electrolyte, an iron electrolyte, a sodium polysulfide/bromine electrolyte, a zinc bromine electrolyte.
As a second aspect of the present invention, there is provided a method for charging an electric ship according to the electric ship power supply apparatus, comprising the steps of:
the method comprises the following steps that a ship stops at a port, and a liquid pumping assembly is connected with a ship-mounted positive storage tank and a ship-mounted negative storage tank;
discharging the electrolyte in the shipborne anode storage tank into an anode liquid discharging storage tank through a liquid pumping assembly, and discharging the electrolyte in the shipborne cathode storage tank into a cathode liquid discharging storage tank through the liquid pumping assembly;
discharging the electrolyte in the anode liquid supply storage tank into a shipborne anode storage tank through a liquid pumping assembly, and discharging the electrolyte in the cathode liquid supply storage tank into a shipborne cathode storage tank through a liquid pumping assembly;
and the power supply charges the discharged electrolyte through the port galvanic pile group.
The beneficial effects of the invention are:
the power supply device provided by the invention supplies power to the flow battery, the flow battery is charged in a mode of exchanging electrolyte on the port and the ship, and the electrolyte exchanged to the port can provide electrolyte for the next ship after being charged in the port. By adopting the mode, the flow battery of the electric ship can be charged quickly and stably, the electrolyte can be recycled, energy is saved, and meanwhile, the energy loss of AD-DC conversion between a power grid and the battery of the electric ship is reduced due to the adoption of the wind power and solar charging modes.
Drawings
FIG. 1 shows a layout of an electric ship power supply apparatus
FIG. 2 shows a current diagram of an electric marine power supply;
FIG. 3 shows a connection diagram of a port stack and a feed liquid storage tank;
FIG. 4 is a block diagram of the pumping assembly;
FIG. 5 shows a block diagram of an on-board flow battery system;
FIG. 6 shows a schematic diagram of an on-board positive storage tank;
FIG. 7 shows a view of the drain port structure;
fig. 8 shows an exploded view of the male connector, the threaded adapter and the locking nut.
The system comprises a port galvanic pile group, a 2-liquid discharging storage tank, a 21-anode liquid discharging storage tank, a 22-cathode liquid discharging storage tank, a 3-liquid pumping component, a 31-self-sucking pump, a 32-liquid pumping hose, a 33-female joint, a 4-shipborne flow battery system, a 41-shipborne anode storage tank, a 411-liquid discharging interface, a 411A-male joint, a 411B-threaded adapter, a 411C-locking nut, a 411D-hard pipe, a 412-liquid filling interface, a 413-electrolyte inlet flange, a 414-electrolyte outlet flange, a 415-manhole, a 416-tank body, a 42-shipborne cathode storage tank, a 43-shipborne battery pipeline system, a 44-shipborne galvanic pile group, a 5-ship, a 6-liquid feeding storage tank, a 61-anode liquid feeding storage tank, a 62-cathode liquid feeding storage tank, a 7-power supply, a 71-wind driven generator, a 72-photovoltaic component, a 73-power grid, an 8-battery room, a 9-control room and a 10-photovoltaic room.
Detailed Description
The following is a detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
According to a first embodiment of the present invention, there is provided an electric ship power supply apparatus, as shown in fig. 1 and 2, including: the device comprises a port electric pile group 1, a liquid discharging storage tank 2, 4 groups of pump liquid assemblies 3, a shipborne flow battery system 4, a liquid supply storage tank 6, a power supply 7 and an energy management system.
The port electric pile group 1, the liquid discharging storage tanks 2 and 4 groups of pump liquid assemblies 3, the liquid supply storage tanks 6, the power supply 7 and the energy management system are all arranged at a port 10, wherein the port electric pile group 1, the liquid discharging storage tanks 2, the pump liquid assemblies 3 and the liquid supply storage tanks 6 are arranged in a battery chamber 8, the energy management system is arranged in a control chamber 9, and other control devices such as a PCS (energy storage converter) and the like are also arranged in the control chamber 9 to separate the control devices from the battery devices.
The on-board flow battery 4 is provided on the ship 5, and as shown in fig. 5, includes an on-board positive electrode tank 41, an on-board negative electrode tank 42, an on-board battery piping system 43, and an on-board stack group 44. The on-board battery stack group 44 is connected to the on-board positive electrode tank 41 and the on-board negative electrode tank 42, and supplies electric power to the ship 5 under the control of the on-board battery piping system 43. The onboard anode storage tank 41 and the onboard cathode storage tank 42 are filled with electrolytes, and the electrolytes can be vanadium electrolyte, iron electrolyte, sodium polysulfide/bromine electrolyte and zinc bromine electrolyte. When the ship 5 sails, the electrolyte provides power for the ship 5, and when the ship 5 is in shore, the electrolyte is discharged and needs to be charged.
As shown in fig. 2 and 3, the port electric pile group 1 is connected with a liquid supply storage tank 6 and a power supply 7. The power supply 7 charges the electrolyte in the liquid supply storage tank 6 through the port electric pile group 1.
As shown in fig. 1 and 2, the power supply 7 includes a wind power generator 71, a photovoltaic module 72, and a power grid 73. The wind power generator 71 and the photovoltaic module 72 are plural and are disposed outside the control room 9. The photovoltaic module 72 is mounted at an angle to facilitate the reception of solar energy. The power grid 73 is connected with the harbor electric pile group 1 through an AC-DC conversion module, the wind power generator 71 and the photovoltaic module 72 are connected with the power grid 72 through an energy storage converter, and the wind power generator 71 and the photovoltaic module 72 are directly connected with the harbor electric pile group 1. The energy management system is connected with the wind driven generator 71, the photovoltaic module 72, the harbour electric pile group 1 and the power grid 73, and adjusts the power supply directions of the wind driven generator 71, the photovoltaic module 72 and the power grid 73 according to the charging state of the harbour electric pile group 1. When the total charge of the wind power generator 71 and the photovoltaic module 72 can be filled with electrolyte and is redundant, the wind power generator 71 and the photovoltaic module 72 supply power to the grid 73. When the total amount of electricity of the wind power generator 71 and the photovoltaic module 72 is not enough to fully charge the electrolyte, the power grid 73 supplies power to the harbour power stack group 1.
The feed liquid storage tank 6 includes a positive feed liquid storage tank 61 and a negative feed liquid storage tank 62. The feed liquid storage tank 6 is filled with full-charge electrolyte, and the shipborne anode storage tank 41 and the shipborne cathode storage tank 42 are used for supplying the full-charge electrolyte.
The liquid discharging storage tank 2 comprises a positive electrode liquid discharging storage tank 21 and a negative electrode liquid discharging storage tank 22, and is used for recovering electrolyte discharged in a ship-mounted positive electrode storage tank 41 and a ship-mounted negative electrode storage tank 42.
The anode supply liquid storage tank 61 is connected with the anode liquid unloading storage tank 21, electrolyte can only flow to the anode supply liquid storage tank 61 in one direction from the anode liquid unloading storage tank 21, the cathode supply liquid storage tank 62 is connected with the cathode liquid unloading storage tank 22, and electrolyte can only flow to the cathode supply liquid storage tank 22 in one direction from the cathode liquid unloading storage tank 62.
The number of the pump liquid assemblies 3 is 4, the 1 st group of the pump liquid assemblies 3 connects the shipborne anode storage tank 41 with the anode liquid unloading storage tank 21, the 2 nd group of the pump liquid assemblies 3 connects the shipborne anode storage tank 41 with the anode liquid supply storage tank 61, the 3 rd group of the pump liquid assemblies 3 connects the shipborne cathode storage tank 42 with the cathode liquid unloading storage tank 22, and the 4 th group of the pump liquid assemblies 3 connects the shipborne cathode storage tank 42 with the cathode liquid supply storage tank 62.
As shown in fig. 4, each set of pump fluid assemblies 3 includes a female connector 33, a self-priming pump 31, and a pump fluid hose 32. The female connector 33 is provided at one end of the pump fluid hose 32 for connection to the onboard positive electrode tank 41 or the onboard negative electrode tank 42. The other end of the liquid pumping hose 32 is connected with the anode liquid supply storage tank 61, the cathode liquid supply storage tank 62, the anode liquid discharge storage tank 21 or the cathode liquid discharge storage tank 22. The self-priming pump 31 is arranged on a pump liquid hose 32 and is used for pumping the electrolyte in one storage tank into the other storage tank.
As shown in fig. 6, the onboard positive electrode storage tank 41 includes a liquid discharge interface 411 corresponding to the positive electrode discharging storage tank 21, a liquid filling interface 412 corresponding to the positive electrode liquid supply storage tank 61, an electrolyte inlet flange 413, an electrolyte outlet flange 414, a manhole 415, and a tank body 416. The electrolyte inlet flange 413 and the electrolyte outlet flange 414 are used for discharging and charging electrolyte in other ways. A practitioner can access the interior of tank 416 through manhole 415.
As shown in fig. 7 and 8, the drain interface 411 includes a male connector 411A, a threaded adapter 411B, a retaining nut 411C, and a rigid tube 411D. Threaded adapter 411B one end is the external screw thread, and the other end is the internal thread, and the centre is annular protruding structure, and the external diameter of bulge is greater than the external diameter at both ends. One end of the external thread of the threaded adapter 411B extends into the tank body 416 through a circular hole in the top of the tank body 416; such that the bottom of the annular raised structure abuts the top of the canister 416. Locking nut 411C is an internal thread that mates with the external thread of threaded adapter 411B to lock threaded adapter 411B such that the top of locking nut 411C is in engagement with the inner wall of tank 416. The hard tube 411D is vertically arranged, the upper end of the hard tube is inserted into the threaded adapter 411B and fixedly connected with the threaded adapter 411B in a glue or hot melting mode, the lower end of the hard tube extends to be close to the bottom of the tank body 416, and the distance between the hard tube and the bottom of the tank body 416 is 2-5 mm. One end of the male connector 411A is a male screw thread, and is matched with the female screw thread of the screw adapter 411B, and the other end is matched with the female connector 33 of the pump fluid assembly 3. Male joint 411A, threaded adapter 411B, lock nut 411C and hard tube 411D all adopt anticorrosive material, preferred PP, PVC or other anticorrosive material.
The liquid filling port 412 has the same structure as the liquid discharging port 411. Fig. 6 shows a liquid filling interface 412 and a liquid discharging interface 411, in practical application, the two interfaces can be combined into one, and the interface is connected with the anode liquid discharging storage tank 21 during liquid discharging, and then connected with the anode liquid supply storage tank 61 during liquid filling. Compare in the mode that adopts flange joint to need tear open, tight bolt, adopt notes liquid interface 412 and flowing back interface 411 can be fast to inserting male head and female head, improve charge efficiency.
The structure of the onboard negative electrode tank 42 is the same as that of the onboard positive electrode tank 41.
As shown in fig. 2, the method for supplying power to the ship 5 by using the electric ship power supply device comprises the following steps:
when a ship 5 stops at a port, the pump liquid hoses 32 of 4 groups of pump liquid assemblies 3 are lengthened, and 4 female connectors 33 are respectively connected with a liquid discharge interface 411 of a shipborne positive storage tank 41, a liquid injection interface 412 of the shipborne positive storage tank 41, a liquid discharge interface of a shipborne negative storage tank 42 and a liquid injection interface of the shipborne negative storage tank 42;
discharging the electrolyte in the shipborne anode storage tank 41 into the anode liquid discharging storage tank 21 and discharging the electrolyte in the shipborne cathode storage tank 42 into the cathode liquid discharging storage tank 22 through the self-priming pump 31 of the pump liquid assembly 3;
discharging the electrolyte in the anode liquid supply storage tank 61 into the shipborne anode storage tank 41 and discharging the electrolyte in the cathode liquid supply storage tank 62 into the shipborne cathode storage tank 42 through the self-priming pump 31 of the liquid pumping assembly 3;
discharging the electrolyte in the anode liquid discharging storage tank 21 into the anode liquid supply storage tank 61, and discharging the electrolyte in the cathode liquid discharging storage tank 22 into the cathode liquid supply storage tank 62;
the power supply charges the electrolyte discharged in the liquid supply storage tank 61 through the port galvanic pile group 1.
According to a second embodiment of the present invention, there is provided an electric power supply apparatus for a ship, which is substantially the same as the apparatus of the first embodiment except that the port electrode stack group is not connected to the supply liquid storage tank, the port electrode stack group is connected to the discharge liquid storage tank, the positive supply liquid storage tank is connected to the positive discharge liquid storage tank and the electrolyte can flow only in one direction from the positive discharge liquid storage tank to the positive supply liquid storage tank, the negative supply liquid storage tank is connected to the negative discharge liquid storage tank and the electrolyte can flow only in one direction from the negative discharge liquid storage tank to the negative supply liquid storage tank. The power supply charges the electrolyte in the liquid unloading storage tank through the port electric pile group.
The power supply device is adopted to supply power to the ship, and the method comprises the following steps:
when a ship stops at a port, the liquid pumping hoses of 4 groups of liquid pumping assemblies are lengthened, and 4 female connectors are respectively connected with a liquid discharging interface of a shipborne positive storage tank, a liquid injecting interface of the shipborne positive storage tank, a liquid discharging interface of the shipborne negative storage tank and a liquid injecting interface of the shipborne negative storage tank;
discharging the electrolyte in the shipborne anode storage tank into an anode liquid discharging storage tank and discharging the electrolyte in the shipborne cathode storage tank into a cathode liquid discharging storage tank through a self-priming pump of the pump liquid assembly;
discharging the electrolyte in the anode liquid supply storage tank into the shipborne anode storage tank and discharging the electrolyte in the cathode liquid supply storage tank into the shipborne cathode storage tank through a self-sucking pump of the pump liquid assembly;
the power supply charges the discharged electrolyte in the discharge storage tank through the port electrode stack group 1;
and discharging the electrolyte in the anode liquid discharging storage tank into the anode liquid supply storage tank, and discharging the electrolyte in the cathode liquid discharging storage tank into the cathode liquid supply storage tank.
According to a third embodiment of the present invention, there is provided an electric power supply apparatus for a ship, which is substantially the same as the apparatus of the first embodiment except that the port cell stacks are assembled in two sets, one set being connected to a liquid supply tank and the other set being connected to a liquid discharge tank. The power supply charges the electrolyte in the liquid supply storage tank and the liquid discharge storage tank through the port galvanic pile group respectively.
The power supply device is adopted to supply power to the ship, and the method comprises the following steps:
when a ship stops at a port, the liquid pumping hoses of 4 groups of liquid pumping assemblies are lengthened, and 4 female connectors are respectively connected with a liquid discharging interface of a shipborne positive storage tank, a liquid injecting interface of the shipborne positive storage tank, a liquid discharging interface of the shipborne negative storage tank and a liquid injecting interface of the shipborne negative storage tank;
discharging the electrolyte in the shipborne anode storage tank into an anode liquid discharging storage tank and discharging the electrolyte in the shipborne cathode storage tank into a cathode liquid discharging storage tank through a self-priming pump of the pump liquid assembly;
discharging the electrolyte in the anode liquid supply storage tank into the shipborne anode storage tank and discharging the electrolyte in the cathode liquid supply storage tank into the shipborne cathode storage tank through a self-sucking pump of the pump liquid assembly;
the power supply charges the discharged electrolyte in the positive electrode liquid discharging storage tank and the negative electrode liquid discharging storage tank through the port galvanic pile group;
and taking the fully charged liquid unloading storage tank as a liquid supply storage tank to provide electrolyte for the shipborne flow battery system of the next ship, and taking the discharged liquid supply storage tank as a liquid unloading storage tank to return the discharged electrolyte for the shipborne flow battery system of the next ship.
According to a fourth embodiment of the present invention, there is provided an electric vessel power supply apparatus which is substantially the same as the apparatus of the first embodiment except that the port battery is not connected to the liquid supply tank, the electric vessel power supply apparatus further comprising a charging tank.
The charging storage tank is connected with the port electric pile group and comprises a positive charging storage tank and a negative charging storage tank. The anode liquid discharging storage tank is connected with the anode charging storage tank, electrolyte can only flow to the anode charging storage tank in a one-way mode from the anode liquid discharging storage tank, the cathode liquid discharging storage tank is connected with the cathode charging storage tank, and electrolyte can only flow to the cathode charging storage tank in a one-way mode from the cathode liquid discharging storage tank. The anode liquid supply storage tank is connected with the anode charging storage tank, electrolyte can only flow to the anode liquid supply storage tank in a one-way mode from the anode charging storage tank, the cathode liquid supply storage tank is connected with the cathode charging storage tank, and the electrolyte can only flow to the cathode liquid supply storage tank in a one-way mode from the cathode charging storage tank. The power supply charges the electrolyte in the charging storage tank through the port galvanic pile group.
The power supply device is adopted to supply power to the ship, and the method comprises the following steps:
when a ship stops at a port, the liquid pumping hoses of 4 groups of liquid pumping assemblies are lengthened, and 4 female connectors are respectively connected with a liquid discharging interface of a shipborne positive storage tank, a liquid filling interface of the shipborne positive storage tank, a liquid discharging interface of the shipborne negative storage tank and a liquid filling interface of the shipborne negative storage tank;
discharging the electrolyte in the shipborne anode storage tank into an anode liquid discharging storage tank and discharging the electrolyte in the shipborne cathode storage tank into a cathode liquid discharging storage tank through a self-priming pump of the pump liquid assembly;
discharging the electrolyte in the anode liquid supply storage tank into a shipborne anode storage tank and discharging the electrolyte in the cathode liquid supply storage tank into a shipborne cathode storage tank through a self-priming pump of the pump liquid assembly;
discharging the electrolyte in the anode liquid discharging storage tank into an anode charging storage tank, and discharging the electrolyte in the cathode liquid discharging storage tank into a cathode charging storage tank;
the power supply charges the discharged electrolyte in the positive charging storage tank and the negative charging storage tank through the port galvanic pile group;
and discharging the electrolyte in the positive electrode charging storage tank into the positive electrode liquid supply storage tank, and discharging the electrolyte in the negative electrode charging storage tank into the negative electrode liquid supply storage tank.
Through the four embodiments, the electrolyte is charged in a mode of exchanging the port and the ship, and the electrolyte exchanged to the port can provide the electrolyte for the next ship after being charged in the port. By adopting the mode, the flow battery of the electric ship can be quickly and stably charged, the electrolyte is recycled, energy is saved, and meanwhile, the energy loss caused by AD-DC conversion between a power grid and the battery of the electric ship is reduced by adopting the wind power and solar charging modes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. An electric marine vessel power supply apparatus, comprising:
the shipborne flow battery system (4) is arranged on a ship (5) and comprises a shipborne positive storage tank (41) and a shipborne negative storage tank (42);
the port electric pile group (1) is arranged at a port (10);
the liquid discharging storage tank (2) is arranged at the port (10), comprises a positive electrode liquid discharging storage tank (21) and a negative electrode liquid discharging storage tank (22), and is used for recovering electrolyte discharged in the ship-mounted positive electrode storage tank (41) and the ship-mounted negative electrode storage tank (42);
the liquid supply storage tank (6) is arranged at the port (10) and comprises a positive liquid supply storage tank (61) and a negative liquid supply storage tank (62); the liquid supply storage tank (6) is used for supplying full electrolyte to the shipborne anode storage tank (41) and the shipborne cathode storage tank (42);
the pump liquid assemblies (3) are arranged at a port (10) and are used for connecting a shipborne anode storage tank (41) with an anode liquid discharging storage tank (21), and/or connecting the shipborne anode storage tank (41) with an anode liquid supply storage tank (61), and also used for connecting a shipborne cathode storage tank (42) with a cathode liquid discharging storage tank (22), and/or connecting the shipborne cathode storage tank (42) with a cathode liquid supply storage tank (62);
the power supply (7) is arranged at the port (10), is connected with the port galvanic pile group (1) and is used for charging discharged electrolyte through the port galvanic pile group (1);
the port pile group comprises a positive electrode charging storage tank and a negative electrode charging storage tank, wherein the positive electrode liquid discharging storage tank is connected with the positive electrode charging storage tank, electrolyte can only flow to the positive electrode charging storage tank from the positive electrode liquid discharging storage tank in a one-way mode, the negative electrode liquid discharging storage tank is connected with the negative electrode charging storage tank, and the electrolyte can only flow to the negative electrode charging storage tank from the negative electrode liquid discharging storage tank in a one-way mode; the anode liquid supply storage tank is connected with the anode charging storage tank, electrolyte can only flow to the anode liquid supply storage tank in a one-way mode from the anode charging storage tank, the cathode liquid supply storage tank is connected with the cathode charging storage tank, and electrolyte can only flow to the cathode liquid supply storage tank in a one-way mode from the cathode charging storage tank; or
The port galvanic piles are arranged in two sets and are respectively connected with the liquid discharging storage tank and the liquid supply storage tank; or
The port galvanic pile group (1) is connected with a liquid supply storage tank (6), the anode liquid supply storage tank (61) is connected with the anode liquid discharge storage tank (21), electrolyte can only flow to the anode liquid supply storage tank (61) from the anode liquid discharge storage tank (21) in a one-way mode, the cathode liquid supply storage tank (62) is connected with the cathode liquid discharge storage tank (22), and the electrolyte can only flow to the cathode liquid supply storage tank (62) from the cathode liquid discharge storage tank (22) in a one-way mode; or
The port electric pile group is connected with a liquid unloading storage tank, the anode liquid supply storage tank is connected with the anode liquid unloading storage tank, electrolyte can only flow to the anode liquid supply storage tank in one direction from the anode liquid unloading storage tank, the cathode liquid supply storage tank is connected with the cathode liquid unloading storage tank, and electrolyte can only flow to the cathode liquid supply storage tank in one direction from the cathode liquid unloading storage tank.
2. Electric marine vessel power supply arrangement according to claim 1, characterized in that the power source (7) comprises a wind generator (71) and/or a photovoltaic module (72) and/or an electrical grid (73).
3. The electric marine vessel power supply arrangement according to claim 2, characterized in that the power source (7) employs a wind power generator (71) and/or a photovoltaic module (72), and further employs an electrical grid (73);
the wind power generator (71) and/or the photovoltaic module (72) are directly connected with the port electric pile group (1), the power grid (73) is connected with the port electric pile group (1) through an AC-DC conversion module, and the wind power generator (71) and/or the photovoltaic module (72) are connected with the power grid (73) through an energy storage converter.
4. The power supply unit according to claim 3, further comprising an energy management system connected to the wind power generator (71) and/or the photovoltaic module (72), the harbour cell stack assembly (1) and the power grid (73) for adjusting the power supply direction of the wind power generator (71) and/or the photovoltaic module (72) and the power grid (73) according to the charging state of the harbour cell stack assembly (1).
5. An electric marine vessel power supply arrangement according to claim 1, characterised in that each set of pump fluid assemblies (3) comprises a female connector (33), a self-priming pump (31) and a pump fluid hose (32); the female joint (33) is arranged at one end of the liquid pumping hose (32) and is used for being connected with a shipborne anode storage tank (41) or a shipborne cathode storage tank (42), and the other end of the liquid pumping hose (32) is connected with the anode liquid supply storage tank (61), the cathode liquid supply storage tank (62), the anode liquid discharging storage tank (21) or the cathode liquid discharging storage tank (22); the self-priming pump (31) is arranged on the pump liquid hose (32).
6. The electric marine power supply arrangement according to claim 5, wherein the onboard positive storage tank (41) and the onboard negative storage tank (42) each comprise a liquid drain interface (411), a liquid filling interface (412) and a tank (416);
the liquid drainage interface (411) and the liquid injection interface (412) respectively comprise a male connector (411A), a threaded adapter (411B), a locking nut (411C) and a hard tube (411D);
one end of the threaded adapter (411B) is provided with an external thread, the other end of the threaded adapter is provided with an internal thread, and the middle of the threaded adapter is of an annular convex structure; one end of the external thread of the threaded adapter (411B) penetrates through a round hole in the top of the tank body (416) and extends into the tank body (416), so that the bottom of the annular protruding structure is attached to the top of the tank body (416);
the locking nut (411C) is an internal thread and is matched with an external thread of the threaded adapter (411B) to lock the threaded adapter (411B), so that the top of the locking nut (411C) is attached to the inner wall of the tank body (416);
the hard tube (411D) is vertically arranged, the upper end of the hard tube is fixedly connected with the threaded adapter (411B), and the lower end of the hard tube extends to be close to the bottom of the tank body (416);
one end of the male connector (411A) is an external thread and is matched with an internal thread of the threaded adapter (411B), and the other end of the male connector is matched with the female connector (33) of the pump fluid assembly (3).
7. The electric marine vessel power supply apparatus according to claim 6, wherein the lower end of the hard pipe (411D) is spaced from the bottom of the tank (416) by 2-5 mm.
8. The electric marine vessel power supply of claim 1, wherein the electrolyte comprises a vanadium electrolyte, an iron electrolyte, a sodium polysulfide/bromine electrolyte, a zinc bromine electrolyte.
9. A method of charging an electric ship using the power supply apparatus of any one of claims 1 to 8, comprising the steps of:
a ship (5) stops at a port (10), and the pump liquid assembly (3) is connected with a shipborne positive storage tank (41) and a shipborne negative storage tank (42);
discharging electrolyte in a ship-borne positive storage tank (41) into a positive liquid discharging storage tank (21) through a liquid pumping assembly (3), and discharging electrolyte in a ship-borne negative storage tank (42) into a negative liquid discharging storage tank (22) through the liquid pumping assembly (3);
discharging the electrolyte in the anode liquid supply storage tank (61) into a shipborne anode storage tank (41) through a liquid pumping assembly (3), and discharging the electrolyte in the cathode liquid supply storage tank (62) into a shipborne cathode storage tank (42) through the liquid pumping assembly (3);
the power supply (7) charges the discharged electrolyte through the port galvanic pile group (1).
CN202110028996.7A 2021-01-11 2021-01-11 Power supply device for electric ship and method for charging electric ship Active CN112848934B (en)

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