CN108565486B - Vanadium battery cargo ship electricity storage system and charging method - Google Patents
Vanadium battery cargo ship electricity storage system and charging method Download PDFInfo
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- CN108565486B CN108565486B CN201810401042.4A CN201810401042A CN108565486B CN 108565486 B CN108565486 B CN 108565486B CN 201810401042 A CN201810401042 A CN 201810401042A CN 108565486 B CN108565486 B CN 108565486B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
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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
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention provides a vanadium battery cargo ship electricity storage system and a charging method, wherein the system comprises a vanadium battery configuration chamber, a vanadium battery electrolyte storage area and a pump-in and pump-out pipeline, wherein the vanadium battery electrolyte storage area comprises an anti-corrosion barrel for distinguishing storage of positive and negative electrolytes, and is communicated with a double-bottom pressure cabin area at the bottom of a cabin; a liquid pumping port of the pump-out pipeline is communicated with the bottommost part of the pressure cabin area, and the other end of the pump-out pipeline is conveyed to the shore-based liquid-changing charging platform through a connecting pipe; one end of the pump-in pipeline is connected with a shore-based charging station, and a liquid outlet is connected with the inside of the electrolyte barrel; the vanadium battery configuration chamber comprises a magnetic pump connected to a double-bottom pressure cabin area for storing electrolyte and a vanadium battery pile unit connected with the other end of the magnetic pump, and an outlet pipeline of the vanadium battery pile unit is connected with the anti-corrosion barrel. This application make full use of presses cabin district idle space, reduces the influence of electricity storage system to cargo ship carrying capacity to the at utmost, adopts the vanadium cell to stabilize the energy storage as the energy storage means, adopts the mode of changing vanadium cell electrolyte to realize quick charge.
Description
Technical Field
The invention relates to the technical field of ship power supply, in particular to a vanadium battery cargo ship power storage system and a charging method.
Background
In order to meet the requirement of large power for cargo ship navigation, the power of a diesel engine is continuously increased, the oil consumption is continuously increased, and the environmental problems caused by the use of a high-power diesel engine are increasingly serious, such as ocean pollution and atmospheric pollution deepening due to the emission of oil-containing waste water and fuel oil waste gas. Serious environmental problems limit further development of shipping, and the emergence of new energy ships is gradually solving the problem of ship fuel pollution. Marine power storage is indeed a big problem: the lead storage battery has long charging time and less chargeable and dischargeable times; the lithium battery is high in price, has potential safety hazards and is not suitable for large-scale electricity storage.
The rapid development of the all-vanadium redox flow battery brings a more stable solution for ship electricity storage, and the vanadium redox flow battery has the advantages of more chargeable and dischargeable times, long service life, safe and reliable storage, lower price and suitability for large-scale integration. The vanadium battery electrolyte has low energy density, the more the stored electric energy is, the more the electrolyte is needed, and the longer the charging time is, so the storage and charging time of the electrolyte is an important problem for limiting the development of the vanadium battery cargo ship.
Disclosure of Invention
The invention aims to provide a vanadium redox battery cargo ship electricity storage system to solve the technical problem that the electrolyte of an all-vanadium redox flow battery is inconvenient to store on a ship.
In order to achieve the purpose, the invention provides a vanadium battery cargo ship electricity storage system which comprises a vanadium battery configuration chamber, a vanadium battery electrolyte storage area, a pumping-in pipeline and a pumping-out pipeline, wherein the vanadium battery electrolyte storage area comprises an anti-corrosion barrel for distinguishing storage of positive and negative electrolytes, and the bottom of the anti-corrosion barrel is communicated with a double-bottom pressure cabin area at the bottom of a cabin; a polyethylene material layer is arranged on the inner wall of the double bottom pressure cabin area to serve as an anti-corrosion layer;
a liquid pumping port of the pump-out pipeline is communicated with the bottommost part of the electrolyte in the ballast area, and the other end of the pump-out pipeline is conveyed to the shore-based liquid-changing charging platform through a connecting pipe; one end of the pumping pipeline is connected to a shore-based charging station, and a liquid outlet is connected to the inside of the electrolyte barrel; valves and flow sensors are arranged on the pump-in pipeline and the pump-out pipeline;
the vanadium battery configuration chamber comprises a magnetic pump connected to a double-bottom pressure cabin area for storing electrolyte and a vanadium battery pile unit connected with the other end of the magnetic pump, and an outlet pipeline of the vanadium battery pile unit is connected with the anti-corrosion barrel.
Preferably, each anti-corrosion barrel is provided with an exhaust valve close to the top.
Preferably, the pump-in and pump-out conduits meet at a single point at the bow deck.
Preferably, power lines are led out from the positive electrode and the negative electrode of the vanadium battery pile unit to the inverter.
Preferably, the double bottom pressure cabin area part for storing the electrolyte of the vanadium redox battery is provided with a plurality of watertight bulkheads to divide the double bottom pressure cabin area part into a plurality of independent areas.
Preferably, the vanadium redox battery configuration chamber and the vanadium redox battery electrolyte storage area are located on the side close to the cargo ship entry port and close to the bow.
The charging method using the vanadium battery cargo ship electricity storage system comprises the following steps:
A. arranging a polyethylene material layer on the inner wall of the selected double-bottom pressure cabin area to serve as an anti-corrosion layer, and isolating a plurality of areas for separately storing positive and negative electrolytes to serve as ballast electrolyte areas; the ballast electrolyte area is respectively communicated with an anti-corrosion barrel for storing positive and negative electrolyte;
B. pumping the positive and negative electrolytes from the ballast electrolyte area through a magnetic pump, pumping the electrolytes into a vanadium cell pile unit, discharging the electrolytes in the pile unit, flowing into an electrolyte storage chamber through a pile liquid pipeline, respectively entering an anti-corrosion barrel for storing the positive and negative electrolytes, and finally returning to the double-bottom pressure cabin area through a connecting pipe of the anti-corrosion barrel and the ballast electrolyte area;
C. the ship is landed, and the electrolyte exhausted by electric energy is pumped out and is conveyed into a shore-based liquid-changing charging platform through a connecting pipe; full-electricity electrolyte from a shore-based charging station enters the liquid inlet pipeline through the connecting pipe, is conveyed to the anti-corrosion barrel for storing the positive and negative electrolyte in the cabin, and then can be stored in the ballast electrolyte area through the anti-corrosion barrel and the connecting pipeline of the double-bottom pressure cabin area to finish charging.
Preferably, the method further comprises the following steps: when the electrolyte is pumped out of the anti-corrosion barrel, the valve of the pumping pipeline is opened, and the valve of the liquid inlet pipeline is closed; when the electrolyte is filled, opening a liquid inlet pipeline valve and closing a pumping pipeline valve; when the aircraft sails, the valve of the pumping pipeline and the valve of the liquid inlet pipeline are both closed.
The invention has the following beneficial effects:
the vanadium battery cargo ship power storage system provided by the invention has the advantages of reasonable structure, stable energy storage and power supply and short charging time.
The technical scheme adopted by the invention is that a part of ballast space and a part of cargo space in a double bottom close to the bow are used as vanadium battery electrolyte storage areas, and the electrolyte can not be reduced along with the use, so that the ballast effect can be achieved, and the space of the cargo pressing area can be fully utilized; the vanadium battery electrolyte is not charged on a ship any more, but is charged by replacing the electrolyte on a shore-based charging platform, and the electrolyte is replaced to realize quick charging.
The double bottom pressure cabin area is used as an electrolyte storage area part, and the inner wall of the pressure cabin area is lined with an anti-corrosion polyethylene material to be used as an anti-corrosion layer of the electrolyte storage area, so that the electrolyte is prevented from corroding the cabin wall.
The cargo hold is used as the electrolyte storage area part, chooses to be close to the bow cabin as the electrolyte storage area, arranges several cylindrical anticorrosion buckets of depositing electrolyte in the cabin promptly, makes things convenient for the cargo ship to take out from the electrolyte and pump into electrolyte from the bow, trades the liquid fast. And the cell stack and the electrical control cabinet are arranged in the area close to the electrolyte barrel in the cabin, so that the direct current transmission line is shortened.
Therefore, the idle space of the hold-down area is fully utilized, the influence of the electricity storage system on the carrying capacity of the cargo ship is reduced to the maximum extent, the vanadium battery is adopted as an energy storage means to stably store energy, and the mode of replacing the electrolyte of the vanadium battery is adopted to realize quick charging.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is one of the schematic cross-sectional views of a cabin according to a preferred embodiment of the invention;
FIG. 2 is a schematic top view of a cabin of a preferred embodiment of the present invention;
FIG. 3 is a second schematic sectional view of the hold of the preferred embodiment of the present invention;
FIG. 4 is one of the schematic electrolyte flow directions of the preferred embodiment of the present invention;
FIG. 5 is a second schematic view showing the direction of electrolyte flow in accordance with a preferred embodiment of the present invention;
fig. 6 is a schematic view of the overall structure of the electricity storage system of the preferred embodiment of the present invention;
1. the device comprises a double bottom, 2 vanadium cell electrolyte, 3 vanadium cell configuration chamber, 4 positive electrolyte, 5 negative electrolyte, 6 galvanic pile unit, 7 electrolyte storage chamber, 8 pumping-in pipe, 9 pumping-out pipe, 10 electrical control cabinet, 11 magnetic pump, 12 liquid flow channel, 13 cabin bottom plate, 14 cabin ceiling, 15 battery interface, 16 screw, 17 exhaust valve.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Referring to fig. 1 and 2, a cargo ship is generally provided with a double bottom 1, which is used for ensuring safety when a ship bottom is damaged, and which has a space for ballast and a fuel tank, so that a part which does not affect the navigation of the cargo ship can be used for storing vanadium battery electrolyte 2. The double bottom 1 for storing the electrolyte is partially lined with PE, namely a protective layer is made on the inner wall of the ballast area serving as an electrolyte storage area by adopting an anti-corrosion polyethylene material, so that the electrolyte is prevented from corroding the bulkhead. The part of the double bottom used for storing the electrolyte of the vanadium cell is separated by a plurality of watertight bulkheads, if a ship bottom is damaged, a watertight cabin door at the position can be immediately closed to separate the cabin, and the phenomenon that all the electrolyte is lost due to the damage of the ship bottom is prevented. The vanadium redox battery allocation chamber 3 and the vanadium redox battery electrolyte storage point should be close to the side of the cargo ship where the cargo ship enters, generally close to the bow, to facilitate electrolyte replacement. The positive and negative electrolytes are separately stored, and the storage spaces are equivalent, so that the equipment is prevented from being damaged due to different pressures of the positive and negative electrodes in the pipeline.
As shown in fig. 3, the size of the whole vanadium redox battery configuration chamber 3 is configured according to the rated power capacity, and is generally located in the lower cabin, and is composed of an electrolyte storage chamber 7, a galvanic pile unit 6, an electrical control cabinet 10, a pump-in pipe 8, a pump-out pipe 9 and a connecting pipeline. Vanadium cell electrolyte locker room 7 arranges several cylindrical anticorrosion bucket of depositing positive electrode electrolyte 4 and negative pole electrolyte 5 in the cabin promptly, makes things convenient for bank base to trade liquid charging platform and takes out from electrolyte and pump into electrolyte from the cargo ship bow, trades liquid fast. And the battery electric pile unit and the electric control cabinet are arranged in the area close to the electrolyte storage chamber 7 in the cabin, so that the direct-current transmission line is shortened.
Fig. 3 also shows a liquid flow pipeline for replacing the electrolyte, a high-power pump is arranged on the extraction pipeline (a pump-out pipe 9) in the electrolyte storage chamber 7, and a liquid extraction port is communicated with the bottommost part of the electrolyte stored in the pressure cabin area, so that the electrolyte with exhausted electric energy can be rapidly extracted and conveyed into a shore-based liquid replacement charging platform through a connecting pipe; the fully charged electrolyte from the shore based charging station enters the inlet conduit through the connecting pipe (pump-in pipe 8), is transported to the electrolyte tank of the electrolyte storage compartment 7 in the cabin, and can then be stored in the ballast electrolyte zone through the electrolyte tank and ballast zone connecting pipe.
The electrolyte pumping pipeline and the liquid inlet pipeline are converged at one position at the ship bow deck, and the valve connection control and the flow sensor are respectively used for measuring the volume of the electrolyte. When the electrolyte is pumped out, the valve of the pumping pipeline is opened, the valve of the liquid inlet pipeline is closed, and the electrolyte cannot flow back; when the electrolyte is filled, the liquid inlet pipeline valve is opened, the pumping pipeline valve is closed, and the pumping pump is not damaged; when the vehicle sails, the pumping pipeline valve and the liquid inlet pipeline valve are both closed, so that the influence of water inflow on the performance of the electrolyte is prevented. The flow sensor measures the volume of the pumped and entered electrolyte, and ensures that the volume of the stored electrolyte is not influenced by the liquid change.
As shown in fig. 4, fig. 5 and fig. 6, the liquid inlet and outlet pipeline of the electric pile set and the vanadium battery configuration chamber operate by batteries, positive and negative electrolytes are pumped out from the double-bottom 1 ballast area through a magnetic pump 11 and pumped into the vanadium battery electric pile set, the electrolytes complete discharging in the electric pile set 6, then flow into the electrolyte storage chamber 7 through a liquid flow pipeline 12 of the electric pile set 6, respectively enter the positive and negative electrolyte barrels, and finally return to the double-bottom 1 ballast area through the electrolyte barrel and ballast area connecting pipe. The inlet and the outlet of the electrolyte entering and exiting the double-bottom pressure cabin area are far apart as possible, so that the electrolyte can flow in a whole circulating manner, and the electric energy stored in the electrolyte can be better utilized. And valves are arranged at all the connecting pipelines to prevent the electrolyte from leaking accidentally.
The bottom plate and the top plate of the cylindrical anti-corrosion electrolyte barrel are respectively provided with eight screws 16 for fixing the electrolyte barrel between the cabin ceiling 14 and the cabin bottom plate 13 and preventing the electrolyte barrel from being overturned due to bumping during the navigation of the cargo ship. Each electrolyte tank is provided with an exhaust valve 17 near the top to keep the air flow pressure balance inside and outside the tank without electrolyte leakage.
And power lines are led out from the positive electrode and the negative electrode of the electric pile unit to the inverter and are converted into alternating current of 380V. The electrical control cabinet controls the overall operation of the vanadium redox battery, the vanadium redox battery discharge state, the rotation of the magnetic pump and the signal receiving and displaying of other sensors are included, and the inverter is installed near the electric pile unit, so that the electrical cabinet control is facilitated.
Therefore, the charging method using the vanadium battery cargo ship power storage system comprises the following steps:
A. arranging a polyethylene material layer on the inner wall of the selected double-bottom pressure cabin area to serve as an anti-corrosion layer, and isolating a plurality of areas for separately storing positive and negative electrolytes to serve as ballast electrolyte areas; the ballast electrolyte area is respectively communicated with an anti-corrosion barrel for storing positive and negative electrolyte;
B. pumping the positive and negative electrolytes from the ballast electrolyte area through a magnetic pump, pumping the electrolytes into a vanadium cell pile unit, discharging the electrolytes in the pile unit, flowing into an electrolyte storage chamber through a pile liquid pipeline, respectively entering an anti-corrosion barrel for storing the positive and negative electrolytes, and finally returning to the double-bottom pressure cabin area through a connecting pipe of the anti-corrosion barrel and the ballast electrolyte area;
the electricity in the battery is transmitted to the PCS in the electric control cabinet through the electric pile, and the PCS converts the electricity into alternating current of 400V and alternating current of 220V to be consumed by the marine electric appliance. The 400V alternating current is transmitted from the bow vanadium cell power distribution room to the stern cabin through a high-voltage transmission line, is directly supplied to a ship motor and provides power for a cargo ship. 220V alternating current supplies power for general electrical apparatus for ship, ensures marine instrument equipment normal operating.
C. The ship is landed, and the electrolyte exhausted by electric energy is pumped out and is conveyed into a shore-based liquid-changing charging platform through a connecting pipe; full-electricity electrolyte from a shore-based charging station enters the liquid inlet pipeline through the connecting pipe, is conveyed to the anti-corrosion barrel for storing the positive and negative electrolyte in the cabin, and then can be stored in the ballast electrolyte area through the anti-corrosion barrel and the connecting pipeline of the double-bottom pressure cabin area to finish charging.
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 (7)
1. The vanadium battery cargo ship electricity storage system is characterized by comprising a vanadium battery configuration chamber, a vanadium battery electrolyte storage area, a pumping-in pipeline and a pumping-out pipeline, wherein the vanadium battery electrolyte storage area comprises an anti-corrosion barrel for distinguishing storage of positive and negative electrolytes, and the bottom of the anti-corrosion barrel is communicated with a double-bottom pressure cabin area at the bottom of a cabin; a polyethylene material layer is arranged on the inner wall of the double bottom pressure cabin area to serve as an anti-corrosion layer; the double bottom pressure cabin part for storing the vanadium battery electrolyte is provided with a plurality of watertight bulkheads to divide the double bottom pressure cabin part into a plurality of independent areas;
a liquid pumping port of the pump-out pipeline is communicated with the bottommost part of the electrolyte in the ballast area, and the other end of the pump-out pipeline is conveyed to the shore-based liquid-changing charging platform through a connecting pipe; one end of the pumping pipeline is connected to a shore-based charging station, and a liquid outlet is connected to the inside of the electrolyte barrel; valves and flow sensors are arranged on the pump-in pipeline and the pump-out pipeline;
the vanadium battery configuration chamber comprises a magnetic pump connected to a double-bottom pressure cabin area for storing electrolyte and a vanadium battery pile unit connected with the other end of the magnetic pump, and an outlet pipeline of the vanadium battery pile unit is connected with the anti-corrosion barrel.
2. The electrical storage system as claimed in claim 1, wherein each of the corrosion protection buckets is fitted with a vent valve near the top.
3. An electricity storage system according to claim 1, wherein the pump-in and pump-out conduits meet at a single point at the bow deck.
4. The power storage system according to claim 1, wherein power lines are led out from positive and negative electrodes of the vanadium cell stack unit to an inverter.
5. The electrical storage system of claim 1, wherein the vanadium battery deployment compartment and vanadium battery electrolyte storage area are adjacent to the side of the vessel that is at the port of entry and adjacent to the bow of the vessel.
6. The charging method of the vanadium redox battery cargo ship power storage system according to any one of claims 1 to 5, which comprises the following steps:
A. arranging a polyethylene material layer on the inner wall of the selected double-bottom pressure cabin area to serve as an anti-corrosion layer, and isolating a plurality of areas for separately storing positive and negative electrolytes to serve as ballast electrolyte areas; the ballast electrolyte area is respectively communicated with an anti-corrosion barrel for storing positive and negative electrolyte;
B. pumping the positive and negative electrolytes from the ballast electrolyte area through a magnetic pump, pumping the electrolytes into a vanadium cell pile unit, discharging the electrolytes in the pile unit, flowing into an electrolyte storage chamber through a pile liquid pipeline, respectively entering an anti-corrosion barrel for storing the positive and negative electrolytes, and finally returning to the double-bottom pressure cabin area through a connecting pipe of the anti-corrosion barrel and the ballast electrolyte area;
C. the ship is landed, and the electrolyte exhausted by electric energy is pumped out and is conveyed into a shore-based liquid-changing charging platform through a connecting pipe; full-electricity electrolyte from a shore-based charging station enters the liquid inlet pipeline through the connecting pipe, is conveyed to the anti-corrosion barrel for storing the positive and negative electrolyte in the cabin, and then can be stored in the ballast electrolyte area through the anti-corrosion barrel and the connecting pipeline of the double-bottom pressure cabin area to finish charging.
7. The charging method according to claim 6, further comprising the steps of: when the electrolyte is pumped out of the anti-corrosion barrel, the valve of the pumping pipeline is opened, and the valve of the liquid inlet pipeline is closed; when the electrolyte is filled, opening a liquid inlet pipeline valve and closing a pumping pipeline valve; when the aircraft sails, the valve of the pumping pipeline and the valve of the liquid inlet pipeline are both closed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022229367A1 (en) * | 2021-04-30 | 2022-11-03 | A.P. Møller - Mærsk A/S | Bunker system and bunker station |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| NL2022980B1 (en) * | 2019-04-18 | 2020-10-26 | Lamaxan Holding B V | An energy storage pontoon, a ship, a shipping system and a method for operating the shipping system. |
| CN112208719A (en) * | 2020-08-24 | 2021-01-12 | 中国船舶工业集团公司第七0八研究所 | Ship overall design scheme based on vanadium flow battery power |
| CN112848934B (en) * | 2021-01-11 | 2022-07-22 | 湖南钒谷新能源技术有限公司 | Power supply device for electric ship and method for charging electric ship |
| CN115056958A (en) * | 2022-07-01 | 2022-09-16 | 武汉水灵环保科技有限公司 | Transport ship using all-vanadium redox flow battery as power and operation method thereof |
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