CN114583335A - Full-function lithium ion battery energy storage system - Google Patents

Full-function lithium ion battery energy storage system Download PDF

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Publication number
CN114583335A
CN114583335A CN202210219161.4A CN202210219161A CN114583335A CN 114583335 A CN114583335 A CN 114583335A CN 202210219161 A CN202210219161 A CN 202210219161A CN 114583335 A CN114583335 A CN 114583335A
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liquid
battery
energy storage
energy
full
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CN202210219161.4A
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CN114583335B (en
Inventor
罗林
姚映青
林伟
凌铃
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Nantong Guoxuan New Energy Technology Co Ltd
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Nantong Guoxuan New Energy Technology Co Ltd
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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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/383—Flame arresting or ignition-preventing means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00309—Overheat or overtemperature protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
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  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
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  • Microelectronics & Electronic Packaging (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a full-function lithium ion battery energy storage system, which relates to the technical field of lithium ion battery energy storage systems and comprises an energy square box body, wherein battery packs are arranged in the energy square box body, the battery packs are arranged into sixteen groups, the sixteen groups of battery packs are arranged in an inner cavity of the energy square box body in three rows, and a full-function high-pressure box is arranged in the energy square box body. According to the liquid-cooled battery heat management unit, the liquid-cooled battery heat management unit is controlled to work, cooling liquid in the liquid-cooled battery heat management unit enters the liquid inlet pipe of the liquid-cooled pipeline through the liquid outlet, the cooling liquid in the liquid inlet of the liquid-cooled pipeline enters the liquid-cooled plate at the bottom of the battery pack, then flows into the liquid outlet pipe of the liquid-cooled pipeline from the liquid outlet of the liquid-cooled plate, finally flows back into the liquid-cooled battery heat management unit, the cooling liquid forms circulation and can flow through the heat conduction area at the bottom of each group of battery packs, so that the whole system achieves a balanced refrigeration effect, the temperature difference between each group of battery packs is effectively reduced, and the charging and discharging efficiency of the energy storage system is improved.

Description

Full-function lithium ion battery energy storage system
Technical Field
The invention relates to the technical field of lithium ion battery energy storage systems, in particular to a full-function lithium ion battery energy storage system.
Background
The lithium ion battery has the advantages of high energy density, long cycle life, small self-discharge rate, no memory effect, environmental protection and the like, has wide application prospect in the field of energy storage, the development and application of the lithium ion battery technology can be worried by hand, the market demand is continuously increased, as one of important applications, the battery energy storage system comes up from the beginning, including small household energy storage, large industrial and commercial energy storage, and ultra-large energy storage power stations, the large energy storage system is an important component of future new energy systems and intelligent power grids, the energy storage battery is the key of the large energy storage system, the electric energy storage system is equivalent to a battery, the energy stores a plurality of applications, such as the power system of the power station, the communication base station and the data room of a backup power supply, the backup power supply technology and the power supply battery technology of the communication base station and the data machine room, belong to the direct current technology and are lower than the power supply battery technology, the energy storage technology is more extensive, and comprises a converter technology, a power grid access technology and a power grid dispatching control technology besides a direct current technology. The following problems exist in the prior art:
1. the existing battery energy storage system mainly adopts an air-conditioning air-cooling technology, and because the box space of the lithium ion battery energy storage system is limited, the layout of internal elements is dense, air-conditioning cold air can only blow to a local area, the refrigeration effect of other parts is not obvious, the temperature difference between battery packs is large, the consistency of batteries is affected, and the charging and discharging efficiency of the whole energy storage system is reduced;
2. the fire control of the existing battery energy storage system adopts a sensor + aerosol mode or a fire detection pipe + heptafluoropropane mode, when a fire disaster occurs, the sensor triggers aerosol or the fire detection pipe is heated to melt and erupt heptafluoropropane gas, so that a fire extinguishing effect is achieved, the fire extinguishing mode is simple fire extinguishing, a power supply cannot be cut off at the first time to prevent the expansion of the fire disaster, and the energy storage system cannot be found at the first time due to the fact that the energy storage system is located in a closed shell, so that the rescue time is delayed.
Disclosure of Invention
The invention provides a full-function lithium ion battery energy storage system, which aims to realize the function of balanced refrigeration of a battery pack and solve the problem of incomplete cooling effect of an air-conditioning air-cooling technology; the other purpose is to solve the problem that the power supply cannot be cut off at the first time to prevent the fire from being expanded by simply extinguishing the fire, so that the effect of timely cutting off the power supply can be achieved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a full-function lithium ion battery energy storage system comprises an energy square box body, wherein battery packs are arranged inside the energy square box body, the battery packs are arranged into sixteen groups, the sixteen groups of battery packs are arranged in three rows in an inner cavity of the energy square box body, a full-function high-voltage box is arranged inside the energy square box body, the number of the full-function high-voltage box is two, the two full-function high-voltage boxes are both arranged in the inner cavity of the energy square box body and are positioned at the bottom of the battery packs, a liquid-cooling energy storage converter is fixedly arranged on the right side of the inner cavity of the energy square box body, a liquid-cooling battery heat management unit is fixedly arranged on the right side of the inner cavity of the energy square box body and is positioned at the top of the liquid-cooling energy storage converter, a centralized detection type intelligent fire extinguishing system is arranged at the top of the inner cavity of the energy square box body, the sixteen groups of battery packs are arranged in two clusters, and are connected in series among the battery packs and are respectively and electrically connected with the full-function high-voltage boxes, the full-function lithium ion battery energy storage system comprises a charge-discharge module, a temperature management module and a centralized detection type intelligent fire fighting system.
The technical scheme of the invention is further improved as follows: the full-function lithium ion battery energy storage system also comprises a charge-discharge module, wherein the charge-discharge module comprises the following steps: when the battery pack is charged, an external power supply carries out voltage and current conversion through the liquid-cooling type energy storage converter, the voltage and current are converted into voltage and current matched with a battery system, the battery pack is charged through full-function high-voltage box control, when the battery pack is discharged, the electric energy of the battery pack is controlled through the full-function high-voltage box, and the voltage and the current required by the outside are converted through the liquid-cooling type energy storage converter to supply power to the outside.
The technical scheme of the invention is further improved as follows: the liquid cooling battery heat management unit is used for carrying out temperature equalization management on the whole battery system, and specifically comprises the following steps: the liquid cooling battery heat management unit is characterized in that cooling liquid in the liquid cooling battery heat management unit enters a liquid cooling pipeline liquid inlet pipe through a liquid outlet, the cooling liquid in a liquid cooling pipeline liquid inlet enters a liquid cooling plate at the bottom of the battery pack, then flows into a liquid outlet pipe of the liquid cooling pipeline from the liquid outlet of the liquid cooling plate, finally flows back to the liquid cooling battery heat management unit, the cooling liquid forms circulation and can flow through a heat conduction area at the bottom of each battery pack, and therefore the whole system achieves a balanced refrigeration effect.
The technical scheme of the invention is further improved as follows: concentrated detection type intelligence fire extinguishing systems includes centralized detector, fire extinguishing medium and exhaust device, concentrated detection type intelligence fire extinguishing systems is used for carrying out fire control protection to battery system it specifically does: the centralized detector CAN detect the concentration of CO and VOC harmful gases, integrates a temperature sensor and a smoke sensor inside, adopts CAN communication, CAN report the alarm level of the monitoring module at regular time, specifies the level division rule in detail according to the alarm level to trigger a fire extinguishing medium when a fire disaster occurs, uploads fire disaster information to the battery management system at the first time, allows the battery management system to cut off the power supply of an energy system, avoids the further expansion of the fire disaster, and the exhaust device is used for reducing the concentration of combustible gases.
The technical scheme of the invention is further improved as follows: the snow accumulation prevention mechanism comprises a connecting seat, the connecting seat is fixedly arranged at the top of the energy square box body, a fixed cylinder is fixedly arranged at the top of the connecting seat, an elastic part is fixedly connected onto the inner wall of the fixed cylinder, one end, away from the inner wall of the fixed cylinder, of the elastic part is fixedly connected with a supporting leg, a rubber dustproof ring is fixedly connected onto the outer wall of the supporting leg, the outer wall of the rubber dustproof ring is fixedly connected with the inner wall of the fixed cylinder, a supporting seat is fixedly arranged at the top of the supporting leg, a vibration motor is fixedly arranged at the bottom of the supporting seat, an inclined baffle is fixedly arranged at the top of the supporting seat, a drainage clamping plate is fixedly arranged at the top of the inclined baffle, a hot air manufacturing cylinder is fixedly arranged at the top of the connecting seat, and an air pipe is fixedly connected to the side face of the hot air manufacturing cylinder, an electric heating assembly and a fan are fixedly installed in the inner cavity of the hot air manufacturing barrel, a fixing ring is fixedly welded in the inner cavity of the hot air manufacturing barrel, and a fiber filter bag is detachably connected to the side face of the fixing ring.
The technical scheme of the invention is further improved as follows: the drainage device is characterized in that a drainage hole is formed in the left side of the drainage clamping plate, a connecting water pipe is connected to the left side of the drainage clamping plate in a threaded manner, a movable cover is connected to one end, far away from the drainage clamping plate, of the connecting water pipe in a threaded manner, the bottom of the movable cover is detachably connected with a water storage cylinder, a stainless steel filter cylinder is detachably connected to the bottom of the movable cover, a drain valve is fixedly connected to the bottom of the water storage cylinder, a net plate is fixedly welded to the inner wall of the water storage cylinder, a first magnetic ring is fixedly mounted at the top of the net plate, filter paper is movably connected to the top of the first magnetic ring, and a second magnetic ring is movably connected to the top of the filter paper.
The technical scheme of the invention is further improved as follows: the utility model discloses a drainage cardboard, including drainage cardboard inner chamber, connecting air pipe, hot-blast one end of making a section of thick bamboo and the tip threaded connection of hot-melt pipe, be provided with protruding piece on the inner wall of hot-melt pipe, the guiding gutter has been seted up to hot-melt pipe, the inside of protruding piece, fixedly connected with hot-melt finned tube on the outer wall of hot-melt pipe, fixed mounting has graphite heat transfer block on the outer wall of hot-melt pipe, the equal fixed welding in both ends of graphite heat transfer block has the heat transfer fork arm.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides a full-function lithium ion battery energy storage system, which controls a liquid-cooled battery heat management unit to work, wherein cooling liquid in the liquid-cooled battery heat management unit enters a liquid inlet pipe of a liquid-cooled pipeline through a liquid outlet, the cooling liquid at the liquid inlet of the liquid-cooled pipeline enters a liquid-cooled plate at the bottom of a battery pack, then flows into a liquid outlet pipe of the liquid-cooled pipeline from the liquid outlet of the liquid-cooled plate and finally flows back into the liquid-cooled battery heat management unit, the cooling liquid forms circulation and can flow through a heat conduction area at the bottom of each group of battery packs, so that the whole system achieves a balanced refrigeration effect, the problem of incomplete cooling effect of an air-conditioning air-cooling technology is avoided, the temperature difference between each group of battery packs is effectively reduced, and the charging and discharging efficiency of the energy storage system is improved.
2. The invention provides a full-function lithium ion battery energy storage system, which CAN detect the concentration of CO and VOC harmful gases through the design of a centralized detector, CAN report the alarm level of a monitoring module at regular time by integrating a temperature sensor and a smoke sensor inside and adopting CAN communication, CAN trigger a fire extinguishing medium when a fire disaster occurs according to the detailed description of the alarm level, and CAN upload fire information to a battery management system at the first time so as to cut off the power supply of an energy system by the battery management system, thereby avoiding the further expansion of the fire disaster, wherein an exhaust device is used for reducing the concentration of combustible gases, being beneficial to the timely implementation of rescue work and reducing the loss when the fire disaster occurs.
3. The invention provides a full-function lithium ion battery energy storage system, which integrates a traditional battery unit and an energy storage converter unit into a cabin body by adopting a modularized liquid cooling type energy storage converter due to small volume of the converter, so that the volume of the whole battery energy storage system is reduced by one third, cables between the battery unit and the energy storage converter unit can be connected in a factory, the construction period of a site is shortened, and the construction capital cost is reduced because a cable ditch between the battery unit and the energy storage converter unit is not needed.
4. The invention provides a full-function lithium ion battery energy storage system, which adopts the combination of a vibration motor, an inclined baffle, a connecting air pipe, a hot melting pipe and a water storage cylinder to control the vibration motor to work and drive a supporting seat to vibrate, the vibration can cause accumulated snow on the top of the inclined baffle to slide towards the inner cavity of a drainage clamping plate, an electric heating component and a fan in a hot air manufacturing cylinder are controlled to work, hot air can be blown into the inner cavity of the hot melting pipe through the connecting air pipe, the accumulated snow in the inner cavity of the drainage clamping plate can be heated and melted through the outer wall of the hot melting pipe, and water generated by melting can flow into the inner cavity of the water storage cylinder through the connecting water pipe to be stored, so that the function of automatically treating the accumulated snow is realized, the problem that the accumulated snow extrudes an energy square box body to cause the box body to incline or collapse is avoided, and the safety of components in the energy square box body is ensured.
Drawings
FIG. 1 is a block diagram of an energy storage system module of the present invention;
FIG. 2 is a schematic structural diagram of the energy square box of the present invention;
FIG. 3 is a schematic view of the internal structure of the energy square box of the present invention;
FIG. 4 is a side cross-sectional structural schematic view of the inclined baffle of the present invention;
FIG. 5 is an enlarged schematic view of the present invention at configuration A;
FIG. 6 is a schematic view showing the internal structure of the hot air producing cylinder of the present invention;
FIG. 7 is a schematic view of a part of the structure of the drainage card of the present invention;
FIG. 8 is a partial internal view of a thermotube according to the present invention;
fig. 9 is a schematic view of the internal structure of the water storage cartridge of the present invention.
In the figure: 1. an energy square box body; 2. a battery pack; 3. a full-function high-pressure tank; 4. a liquid-cooled energy storage converter; 5. a liquid-cooled battery thermal management unit; 6. a centralized detection type intelligent fire-fighting system;
7. snow accumulation prevention mechanisms; 71. a connecting seat; 72. a supporting seat; 73. an inclined baffle plate; 74. a drainage card plate; 741. a drain hole; 742. connecting a water pipe; 743. a water storage cylinder; 7431. a movable cover; 7432. a stainless steel filter cartridge; 7433. a drain valve; 7434. a screen plate; 7435. a first magnetic ring; 7436. filtering paper; 7437. a second magnetic ring; 744. a hot melt tube; 7441. a raised block; 7442. a diversion trench; 7443. hot melting finned tubes; 7444. a graphite heat transfer block; 7445. a heat transfer fork; 75. a hot air manufacturing cylinder; 751. connecting an air pipe; 752. an electric heating component; 753. a fan; 754. a fixing ring; 755. a fiber filter bag; 76. a fixed cylinder; 761. an elastic member; 762. a support leg; 763. a rubber dust ring; 764. a vibration motor.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1-9, the invention provides a full-function lithium ion battery energy storage system, which comprises an energy square box body 1, wherein battery packs 2 are arranged in the energy square box body 1, the battery packs 2 are arranged into sixteen groups, the sixteen groups of battery packs 2 are arranged in an inner cavity of the energy square box body 1 in three rows, a full-function high-voltage box 3 is arranged in the energy square box body 1, the number of the full-function high-voltage boxes 3 is two, the two full-function high-voltage boxes 3 are both arranged in the inner cavity of the energy square box body 1 and are positioned at the bottom of the battery packs 2, a liquid-cooling type energy storage converter 4 is fixedly arranged at the right side of the inner cavity of the energy square box body 1, a liquid-cooling heat management battery unit 5 is fixedly arranged at the right side of the inner cavity of the energy square box body 1 and is positioned at the top of the liquid-cooling type energy storage converter 4, and a centralized detection type intelligent fire protection system 6 is arranged at the top of the inner cavity of the energy square box body 1, sixteen groups of battery packs 2 set up to two, establish ties between every group of battery pack 2 and set up and respectively with full function high-voltage box 3 between electric connection, full function high-voltage box 3 passes through wire and 4 electric connections of liquid cold type energy storage converter, liquid cold type energy storage converter 4 can export the alternating current to the outside, this full function lithium ion battery energy storage system includes charge-discharge module, temperature management module and centralized detection type intelligence fire extinguishing systems 6, battery pack 2 adopts the automobile-used grade battery package of IP67, accomplish inside "totally enclosed" outside air of battery pack and dust can't enter into inside the battery pack, the system is more stable, battery system's protection and monitoring function is realized by BMS battery management system, battery system's BMS divides three-level management, be tray BMU, MBMS, BAMS respectively, every grade BMS main function as follows: BMU (fixed in battery pack): the voltage, the temperature of monitoring monomer electricity core and the total voltage of single tray to pass through CAN agreement to higher level BMS real-time transfer above information, CAN control the voltage balance of monomer electricity core, MBMS (frame level, built-in the high-voltage box): the method comprises the following steps of detecting the total voltage and the total current of the whole battery pack, transmitting the information to a superior BMS in real time through a CAN protocol, displaying the capacity and the health state of the battery during charging and discharging, controlling the balance of the relay switch and the voltage of a cluster level unit, and controlling the balance of the BAMS (system level): the method is characterized in that the method comprises the following steps of collecting subordinate MBMS information, estimating the residual capacity and the health condition of a battery in real time, communicating with an upper system and an external system in a CAN or Modbus-TCP/IP mode, integrating a BMS into a switch box or integrating the BMS alone according to the system complexity, and integrating an EMS (energy management system): the system level BMS and the EMS are communicated through the Ethernet and connected through a network cable, so that the functions of energy management, data acquisition, communication management, system monitoring, energy scheduling, historical data storage and the like of the battery system are realized.
Example 2
As shown in fig. 1 to 9, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the full-function lithium ion battery energy storage system further comprises a charge-discharge module, and the charge-discharge module comprises the following steps: when battery package 2 charges, external power source carries out voltage current conversion through liquid cooling type energy storage converter 4, convert the voltage current with battery system adaptation, charge to battery package 2 through 3 controls of global function high-voltage box, when battery package 2 discharges, battery package 2 electric energy is through 3 controls of global function high-voltage box, convert outside required voltage and electric current through liquid cooling type energy storage converter 4, to the external power supply, liquid cooling battery thermal management unit 5 is used for carrying out its specific do of temperature equalization management to whole battery system: the inside coolant liquid of liquid cooling battery heat management unit 5 gets into liquid cooling pipeline feed liquor pipe through the liquid outlet, the coolant liquid of liquid cooling pipeline inlet gets into the liquid cooling board of 2 bottoms of battery package, then the liquid outlet from the liquid cooling board flows into the drain pipe of liquid cooling pipeline, finally flow back to in the liquid cooling battery heat management unit 5, the coolant liquid forms the circulation, can flow through the heat-conduction region of 2 bottoms of every group battery package, make entire system reach balanced refrigeration effect, centralized detection type intelligence fire extinguishing systems 6 includes centralized detector, fire extinguishing medium and exhaust device, centralized detection type intelligence fire extinguishing systems 6 are used for carrying out the fire protection to battery system and specifically do: the centralized detector CAN detect the concentration of CO and VOC harmful gases, and internally integrates a temperature sensor and a smoke sensor and adopts CAN communication, and CAN report the alarm level of a monitoring module at regular time, the alarm level CAN explain the level division rule in detail, the alarm mode is divided into a first level, a second level and a third level and is increased progressively step by step, when a detection alarm system sends a first-level, a second-level or a third-level early warning, alarm information is sent to a background, a battery system receives any early warning signal and then requests to stop running, a fire extinguishing system is automatically started after the third-level alarm of a fire extinguishing system, and the specific strategy is as follows:
Figure BDA0003536274770000081
when a fire disaster happens, a fire extinguishing medium is triggered, fire information is uploaded to a battery management system at the first time, the battery management system cuts off a power supply of an energy square system, the fire disaster is prevented from further expanding, an exhaust device is used for reducing the concentration of combustible gas, the exhaust device is automatically started when a sensor senses that the concentration or the temperature inside an energy square box body 1 exceeds the standard, the exceeding internal air is forcibly discharged out of the energy square box body 1, and 50% V/50% V glycol/water solution is adopted as cooling liquid inside a liquid-cooled battery heat management unit 5.
Example 3
As shown in fig. 1 to 9, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the snow accumulation preventing mechanism 7 is arranged at the top of the energy square box body 1, the snow accumulation preventing mechanism 7 comprises a connecting seat 71, the connecting seat 71 is fixedly arranged at the top of the energy square box body 1, a fixed cylinder 76 is fixedly arranged at the top of the connecting seat 71, an elastic part 761 is fixedly connected on the inner wall of the fixed cylinder 76, one end of the elastic part 761, which is far away from the inner wall of the fixed cylinder 76, is fixedly connected with a support leg 762, a rubber dustproof ring 763 is fixedly connected on the outer wall of the support leg 762, the outer wall of the rubber dustproof ring 763 is fixedly connected with the inner wall of the fixed cylinder 76, a supporting seat 72 is fixedly arranged at the top of the support leg 762, a vibration motor 764 is fixedly arranged at the bottom of the supporting seat 72, an inclined baffle 73 is fixedly arranged at the top of the supporting seat 72, a drainage clamping plate 74 is fixedly arranged at the top of the inclined baffle 73, a hot air making cylinder 75 is fixedly arranged at the top of the connecting seat 71, and a connecting air pipe 751 is fixedly connected to the side of the hot air making cylinder 75, an electric heating component 752 and a fan 753 are fixedly mounted in an inner cavity of the hot air manufacturing cylinder 75, a fixing ring 754 is fixedly welded in the inner cavity of the hot air manufacturing cylinder 75, a fiber filter bag 755 is detachably connected to the side face of the fixing ring 754, and the vibration motor 764 is controlled to work and drives the supporting seat 72 to vibrate, so that snow on the top of the inclined baffle plate 73 can be made to slide to the inner cavity of the drainage clamping plate 74 by vibration, the electric heating component 752 and the fan 753 in the hot air manufacturing cylinder 75 are controlled to work, hot air can be blown into the inner cavity of the hot melting pipe 744 by connecting an air pipe 751, the hot air can heat and melt the snow in the inner cavity of the drainage clamping plate 74 by the outer wall of the hot melting pipe 744, water generated by melting can flow into the inner cavity of the water storage cylinder 743 through the connecting water pipe 742 to be stored, namely, the function of automatically processing the snow is realized, and the problem that the energy square box 1 is inclined or collapsed by squeezing the snow is avoided, through the design of fibre filter bag 755, can filter the absorptive air of fan 753, avoid too much impurity in the air to get into the inside problem of hot melt pipe 744, the design of rubber dirt proof ring 763 for avoid the dust to fall into the inside problem of solid fixed cylinder 76.
Example 4
As shown in fig. 1 to 9, on the basis of embodiment 1, the present invention provides a technical solution: preferably, a drainage hole 741 is formed in the left side of the drainage clamping plate 74, a connection water pipe 742 is in threaded connection with the left side of the drainage clamping plate 74, a movable cover 7431 is in threaded connection with one end of the connection water pipe 742, which is far away from the drainage clamping plate 74, a water storage cylinder 743 is detachably connected with the bottom of the movable cover 7431, a stainless steel filter cylinder 7432 is detachably connected with the bottom of the movable cover 7431, a drainage valve 7433 is fixedly connected with the bottom of the water storage cylinder 743, a screen plate 7434 is fixedly welded on the inner wall of the water storage cylinder 743, a magnetic ring 7435 is fixedly installed at the top of the screen plate 7434, a filter paper 7436 is movably connected with the top of the magnetic ring two 7437, a hot melting pipe 744 is fixedly installed on the side surface of the inner cavity of the drainage clamping plate 74, one end of the connection air pipe 751, which is far away from the hot air manufacturing cylinder 75, is in threaded connection with the end of the hot melting pipe 744, a convex block 7441 is arranged on the inner wall of the hot melting pipe 744, and the hot melting pipe 744 is arranged on the inner wall of the hot melting pipe 744, Guiding gutter 7442 has been seted up to protruding piece 7441's inside, fixedly connected with hot melt finned tube 7443 on hot melt pipe 744's the outer wall, fixed mounting has graphite heat transfer piece 7444 on hot melt pipe 744's the outer wall, the equal fixed welding in both ends of graphite heat transfer piece 7444 has heat transfer fork 7445, can collect the water that the snow removal produced through water storage cylinder 743, avoid ponding to sputter the inside problem of energy square box 1, it can purify to collect water to strain by stainless steel section of thick bamboo 7432 and filter paper 7436, convenient to use person recycles it, design through protruding piece 7441 and guiding gutter 7442, can be with in the inner chamber of partial hot-blast direction hot melt finned tube 7443, promote the effect of heating melting, and through graphite heat transfer piece 7444 and the design of heat transfer fork 7445, further promote the speed of snow removal heating.
The working principle of the fully functional lithium ion battery energy storage system is described in detail below.
As shown in fig. 1-9, when the battery pack 2 is charged, the external power source performs voltage-current conversion through the liquid-cooling energy storage converter 4, and converts the voltage-current into a voltage-current adapted to the battery system, the battery pack 2 is charged through the control of the full-function high-voltage box 3, when the battery pack 2 is discharged, the electric energy of the battery pack 2 is controlled through the full-function high-voltage box 3, and is converted into a voltage and a current required by the outside through the liquid-cooling energy storage converter 4, and supplies power to the outside, during the use process, the concentration of harmful gases such as CO and VOC can be detected through the centralized detector, when a fire occurs, the fire extinguishing medium is triggered, the fire information is uploaded to the battery management system in time, the power source of the energy system is cut off, the liquid-cooling battery heat management unit 5 is controlled to work, the cooling liquid in the liquid-cooling battery heat management unit 5 finally flows back into the liquid-cooling battery heat management unit 5 through the liquid-cooling plate at the bottom of the battery pack 2, realize balanced cryogenic effect, if use in the snow day, control shock dynamo 764 work makes supporting seat 72 shake, with the inner chamber of the snow direction drainage cardboard 74 at inclined baffle 73 top, control electric heating element 752 and fan 753 work blow hot-blastly in the inner chamber of hot-melt pipe 744, hot-blastly can heat the snow of drainage cardboard 74 inner chamber and make it melt through the outer wall of hot-melt pipe 744, realize the function of automatic snow melt.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.

Claims (7)

1. The utility model provides a full-functional lithium ion battery energy storage system, includes energy square box (1), its characterized in that: the energy square box body is characterized in that battery packs (2) are arranged in the energy square box body (1), the battery packs (2) are arranged into sixteen groups, the sixteen groups of battery packs (2) are arranged in an inner cavity of the energy square box body (1) in three rows, full-function high-pressure boxes (3) are arranged in the energy square box body (1), the number of the full-function high-pressure boxes (3) is two, the two full-function high-pressure boxes (3) are arranged in the inner cavity of the energy square box body (1) and located at the bottom of the battery packs (2), a liquid-cooling energy storage converter (4) is fixedly arranged on the right side of the inner cavity of the energy square box body (1), a liquid-cooling battery heat management unit (5) is fixedly arranged on the right side of the inner cavity of the energy square box body (1) and located at the top of the liquid-cooling energy storage converter (4), and a centralized detection type intelligent fire-fighting system (6) is arranged at the top of the inner cavity of the energy square box body (1), sixteen groups battery package (2) set up to two clusters, every cluster establish ties between battery package (2) set up and respectively with full function high-voltage box (3) between electric connection, full function high-voltage box (3) are connected with liquid cold type energy storage converter (4) electricity through the wire, liquid cold type energy storage converter (4) can be to outside output alternating current, this full function lithium ion battery energy storage system includes charge-discharge module, temperature management module and centralized detection type intelligent fire extinguishing system (6).
2. The fully functional lithium ion battery energy storage system of claim 1, wherein: the full-function lithium ion battery energy storage system also comprises a charge-discharge module, wherein the charge-discharge module comprises the following steps: when the battery pack (2) is charged, an external power supply carries out voltage and current conversion through the liquid cooling type energy storage converter (4), the voltage and current are converted into voltage and current matched with a battery system, the battery pack (2) is charged through the control of the full-function high-voltage box (3), when the battery pack (2) is discharged, the electric energy of the battery pack (2) is controlled through the full-function high-voltage box (3), the voltage and the current required by the outside are converted through the liquid cooling type energy storage converter (4), and the external power is supplied.
3. The fully functional lithium ion battery energy storage system of claim 1, wherein: liquid cooling battery heat management unit (5) are used for carrying out its specific do of temperature equilibrium management to whole battery system: the liquid cooling battery heat management unit comprises a liquid cooling battery heat management unit (5), wherein cooling liquid in the liquid cooling battery heat management unit (5) enters a liquid cooling pipeline liquid inlet pipe through a liquid outlet, the cooling liquid in the liquid cooling pipeline liquid inlet enters a liquid cooling plate at the bottom of a battery pack (2), then flows into a liquid outlet pipe of the liquid cooling pipeline from the liquid outlet of the liquid cooling plate, and finally flows back into the liquid cooling battery heat management unit (5), the cooling liquid forms circulation and can flow through a heat conduction area at the bottom of each battery pack (2), and the whole system achieves a balanced refrigeration effect.
4. The fully functional lithium ion battery energy storage system of claim 1, wherein: concentrated detection type intelligence fire extinguishing systems (6) are including centralized detector, fire extinguishing medium and exhaust apparatus, concentrated detection type intelligence fire extinguishing systems (6) are used for carrying out fire control protection to battery system it specifically is: the centralized detector CAN detect the concentration of CO and VOC harmful gases, integrates a temperature sensor and a smoke sensor inside, adopts CAN communication, CAN report the alarm level of the monitoring module at regular time, specifies the level division rule in detail according to the alarm level to trigger a fire extinguishing medium when a fire disaster occurs, uploads fire disaster information to the battery management system at the first time, allows the battery management system to cut off the power supply of an energy system, avoids the further expansion of the fire disaster, and the exhaust device is used for reducing the concentration of combustible gases.
5. The fully functional lithium ion battery energy storage system of claim 1, wherein: the top of energy side box (1) is provided with prevents snow mechanism (7), prevent snow mechanism (7) including connecting seat (71), connecting seat (71) fixed mounting is at the top of energy side box (1), the top fixed mounting of connecting seat (71) has solid fixed cylinder (76), fixed connection elastic component (761) on the inner wall of solid fixed cylinder (76), the one end fixedly connected with stabilizer blade (762) of solid fixed cylinder (76) inner wall is kept away from to elastic component (761), fixedly connected with rubber dirt ring (763) on the outer wall of stabilizer blade (762), the outer wall of rubber dirt ring (763) and the inner wall fixed connection of solid fixed cylinder (76), the top fixed mounting of stabilizer blade (762) has supporting seat (72), the bottom fixed mounting of supporting seat (72) has shock dynamo (764), the top fixed mounting of supporting seat (72) has slope baffle (73), the top fixed mounting of slope baffle (73) has drainage cardboard (74), the top fixed mounting of connecting seat (71) has hot-blast making section of thick bamboo (75), the side fixedly connected with tuber pipe (751) of hot-blast making section of thick bamboo (75), fixed mounting has electric heating assembly (752) and fan (753) in the inner chamber of hot-blast making section of thick bamboo (75), fixed welding has solid fixed ring (754) in the inner chamber of hot-blast making section of thick bamboo (75), the side dismantlement formula of solid fixed ring (754) is connected with fibre filter bag (755).
6. The fully functional lithium ion battery energy storage system of claim 5, wherein: the utility model discloses a water drainage device, including drainage cardboard (74), drain hole (741) have been seted up to the left side of drainage cardboard (74), the left side threaded connection of drainage cardboard (74) has connecting water pipe (742), the one end threaded connection who keeps away from drainage cardboard (74) of connecting water pipe (742) has movable cover (7431), the bottom dismantlement formula of movable cover (7431) is connected with a water storage cylinder (743), the bottom dismantlement formula of movable cover (7431) is connected with stainless steel and strains a section of thick bamboo (7432), the bottom fixedly connected with drain valve (7433) of water storage cylinder (743), fixed welding has otter board (7434) on the inner wall of water storage cylinder (743), the top fixed mounting of otter board (7434) has magnetic ring one (7435), the top swing joint of magnetic ring one (7435) has filter paper (7436), the top swing joint of filter paper (7436) has magnetic ring two (7437).
7. The fully functional lithium ion battery energy storage system of claim 5, wherein: side fixed mounting of drainage cardboard (74) inner chamber has hot melt pipe (744), connecting air pipe (751) keep away from the one end of a hot-blast manufacturing section of thick bamboo (75) and the tip threaded connection of hot melt pipe (744), be provided with protruding piece (7441) on the inner wall of hot melt pipe (744), guiding gutter (7442) have been seted up to the inside of hot melt pipe (744), protruding piece (7441), fixedly connected with hot melt finned tube (7443) on the outer wall of hot melt pipe (744), fixed mounting has graphite heat transfer block (7444) on the outer wall of hot melt pipe (744), the equal fixed welding in both ends of graphite heat transfer block (7444) has heat transfer fork rod (7445).
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