CN114583335B - Full-functional lithium ion battery energy storage system - Google Patents

Full-functional lithium ion battery energy storage system Download PDF

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Publication number
CN114583335B
CN114583335B CN202210219161.4A CN202210219161A CN114583335B CN 114583335 B CN114583335 B CN 114583335B CN 202210219161 A CN202210219161 A CN 202210219161A CN 114583335 B CN114583335 B CN 114583335B
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battery
liquid
energy storage
full
liquid cooling
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CN114583335A (en
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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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Manufacturing & Machinery (AREA)
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  • Health & Medical Sciences (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 the inner cavity of the energy square box body in three rows, and a full-function high-voltage box is arranged in the energy square box body. According to the invention, through controlling the operation of the liquid cooling battery thermal management unit, cooling liquid in the liquid cooling battery thermal management unit enters the liquid cooling pipeline liquid inlet pipe through the liquid outlet, the cooling liquid at the liquid cooling pipeline liquid inlet enters the liquid cooling plate at the bottom of the battery pack, then flows into the liquid outlet pipe of the liquid cooling pipeline from the liquid outlet of the liquid cooling plate, finally flows back into the liquid cooling battery thermal management unit, the cooling liquid forms a 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 charge and discharge efficiency of the energy storage system is improved.

Description

Full-functional 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-functional 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, green environmental protection and the like, has wide application prospect in the energy storage field, the development and application of the lithium ion battery technology can be called hot, the market demand is continuously increased, as one of important application of the lithium ion battery, the battery energy storage system is generated, the lithium ion battery comprises small household energy storage, large industrial and commercial energy storage and an ultra-large energy storage power station, the large energy storage system is an important component of a new energy system and a smart grid in the future, 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 storage system has a plurality of applications, such as a power system of the power station, a standby power supply technology and a power battery technology of a backup power supply, the communication base station and the data machine room belong to direct current technology, the content of the energy storage technology is wider than that of the power battery technology, and the energy storage technology comprises a converter technology, a power grid access technology and a power grid scheduling control technology in addition to the 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 body space of the lithium ion battery energy storage system is limited, the internal element layout is relatively dense, the cold air of the air conditioner can only be blown to a local area, the refrigeration effect of other parts is not obvious, the temperature difference between battery packs is relatively large, the consistency of batteries is affected, and the charging and discharging efficiency of the whole energy storage system is reduced;
2. the existing battery energy storage system is used for fire protection, a sensor and aerosol mode or a fire detecting tube and heptafluoropropane mode are adopted, when a fire disaster occurs, the sensor triggers the aerosol or the fire detecting tube to be heated and melt and spray heptafluoropropane gas, so that a fire extinguishing effect is achieved.
Disclosure of Invention
The invention provides a full-functional lithium ion battery energy storage system, which aims to achieve the function of carrying out balanced refrigeration on a battery pack and solve the problem of incomplete cooling effect of an air-conditioning air cooling technology; another purpose is to solve the problem that the power supply cannot be cut off at the first time to prevent the expansion of fire disaster when the fire is simply extinguished, so as to achieve the effect of timely cutting off the power supply.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a full-functional lithium ion battery energy storage system, includes the energy square box, the inside of energy square box is provided with the battery package, the battery package sets up to sixteen group, sixteen group the battery package divide three to be listed as and install in the inner chamber of energy square box, the inside of energy square box is provided with full-functional high-voltage box, the quantity of full-functional high-voltage box sets up to two, two full-functional high-voltage box is all installed in the inner chamber of energy square box and is located the bottom of battery package, the right side fixed mounting of energy square box inner chamber has liquid cooling type energy storage converter, the right side fixed mounting of energy square box inner chamber has liquid cooling battery thermal management unit and is located the top of liquid cooling type energy storage converter, the top of energy square box inner chamber is provided with concentrated detection type intelligent fire extinguishing system, sixteen group the battery package sets up to two clusters, every establish ties between the battery package and be connected with full-functional high-voltage box electricity respectively, full-functional high-voltage box passes through wire and liquid cooling type energy storage converter connection, but energy storage battery module and the intelligent power consumption type energy storage system charge and discharge.
The technical scheme of the invention is further improved as follows: the full-functional lithium ion battery energy storage system further comprises a charging and discharging module, wherein the charging and discharging module comprises the following steps: when the battery pack is charged, an external power supply converts voltage and current into voltage and current which are matched with a battery system through the liquid cooling type energy storage converter, the battery pack is charged through full-function high-voltage box control, and when the battery pack is discharged, battery pack electric energy is controlled through the full-function high-voltage box, and the battery pack electric energy is converted into voltage and current required by the outside through the liquid cooling type energy storage converter, so that external power is supplied.
The technical scheme of the invention is further improved as follows: the liquid cooling battery thermal management unit is used for carrying out temperature balance management on the whole battery system and comprises the following specific components: the cooling liquid in the liquid cooling battery thermal management unit enters the liquid cooling pipeline liquid inlet pipe through the liquid outlet, the cooling liquid at the liquid cooling pipeline liquid inlet enters the liquid cooling plate at the bottom of the battery pack, then flows into the liquid outlet pipe of the liquid cooling pipeline from the liquid outlet of the liquid cooling plate, finally flows back into the liquid cooling battery thermal 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 the balanced refrigeration effect.
The technical scheme of the invention is further improved as follows: the centralized detection type intelligent fire-fighting system comprises a centralized detector, a fire extinguishing medium and an exhaust device, and is used for performing fire protection on a battery system and specifically comprises the following components: the centralized detector CAN detect the concentration of CO and VOC harmful gas, the temperature sensor and the smoke sensor are integrated inside and are in CAN communication, the alarm level of the monitoring module CAN be reported regularly, the alarm level should specify the level division rule to trigger the fire extinguishing medium when a fire disaster occurs, and the fire disaster information is uploaded to the battery management system at the first time, so that the battery management system cuts off the power supply of the energy system, the further expansion of the fire disaster is avoided, and the exhaust device is used for reducing the concentration of the combustible gas.
The technical scheme of the invention is further improved as follows: the utility model discloses a hot air filter bag, including energy square box, including energy square box, the top of energy square box is provided with snow protection mechanism, snow protection mechanism includes the connecting seat, connecting seat fixed mounting is at the top of energy square box, the top fixed mounting of connecting seat has a fixed section of thick bamboo, fixedly connected with elastic component on the inner wall of fixed section of thick bamboo, the one end fixedly connected with stabilizer blade of fixed section of thick bamboo inner wall is kept away from to the elastic component, fixedly connected with rubber dirt-proof ring on the outer wall of stabilizer blade, the outer wall of rubber dirt-proof ring and the inner wall fixed connection of fixed section of thick bamboo, the top fixed mounting of stabilizer blade has the supporting seat, the bottom fixed mounting of supporting seat has vibrating motor, the top fixed mounting of supporting seat has the tilt baffle, the top fixed mounting of tilt baffle has the drainage cardboard, the top fixed mounting of connecting seat has a hot air manufacturing section of thick bamboo, the side fixedly connected with connecting air pipe of hot air manufacturing section of thick bamboo, fixedly mounted with electrothermal assembly and fan in the inner chamber of hot air manufacturing section of thick bamboo, fixedly welded fixed ring in the inner chamber of hot air manufacturing section of thick bamboo, the side dismantlement formula of fixed ring has the fibre filter bag.
The technical scheme of the invention is further improved as follows: the left side of drainage cardboard has been seted up the wash port, the left side threaded connection of drainage cardboard has the connection water pipe, the one end threaded connection that drainage cardboard was kept away from to the connection water pipe has the movable cover, the bottom dismantlement formula of movable cover is connected with a water storage section of thick bamboo, the bottom dismantlement formula of movable cover is connected with the stainless steel and strains a section of thick bamboo, the bottom fixedly connected with drain valve of a water storage section of thick bamboo, fixedly welded with otter board on the inner wall of a water storage section of thick bamboo, the top fixedly mounted of otter board has magnetic force ring one, the top swing joint of magnetic force ring one has filter paper, the top swing joint of filter paper has magnetic force ring two.
The technical scheme of the invention is further improved as follows: the side fixed mounting of drainage cardboard inner chamber has the hot melt pipe, the one end that hot-blast manufacturing section of thick bamboo was kept away from to the connection tuber pipe 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 the inside of hot melt pipe, protruding piece, fixedly connected with hot melt wing pipe on the outer wall of hot melt pipe, fixedly mounted 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 fork arm that transfers heat.
By adopting the technical scheme, compared with the prior art, the invention has the following technical progress:
1. the invention provides a full-functional lithium ion battery energy storage system, which is used for controlling a liquid cooling battery thermal management unit to work, wherein cooling liquid in the liquid cooling battery thermal management unit enters a liquid cooling pipeline liquid inlet pipe through a liquid outlet, the cooling liquid at the liquid cooling pipeline liquid inlet enters a liquid cooling plate at the bottom of a battery pack, then flows into the 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 thermal management unit, the cooling liquid forms circulation and can flow through a heat conduction area at the bottom of each battery pack, 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 battery pack is effectively reduced, and the charge and discharge efficiency of the energy storage system is improved.
2. The invention provides a full-functional lithium ion battery energy storage system, which CAN detect the concentration of CO and VOC harmful gas through the design of a centralized detector, integrate a temperature sensor and a smoke sensor inside and adopt CAN communication, report the alarm level of a monitoring module at regular time, trigger a fire extinguishing medium when a fire disaster happens according to the alarm level specification rule, upload fire disaster information to a battery management system at the first time, enable the battery management system to cut off the power supply of the energy system, avoid the further expansion of the fire disaster, and an exhaust device is used for reducing the concentration of combustible gas, thereby being beneficial to timely carrying out rescue work and reducing the loss when the fire disaster happens.
3. The invention provides a full-functional lithium ion battery energy storage system, which adopts a modularized liquid cooling type energy storage converter, and because the converter is small in size, the system integrates a traditional battery unit and an energy storage converter unit into a cabin body, so that 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 the site is shortened, and because a cable trench between the battery unit and the energy storage converter unit is not needed, the construction capital cost is reduced.
4. The invention provides a full-functional 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, controls the vibration motor to work and drives a supporting seat to vibrate, the vibration can promote snow on the top of the inclined baffle to slide towards the inner cavity of a drainage clamping plate, controls an electric heating assembly and a fan in a hot air manufacturing cylinder to work, can blow hot air into the inner cavity of the hot melting pipe through the connecting air pipe, the hot air can heat and melt snow in the inner cavity of the drainage clamping plate 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 processing the snow is realized, the problem that the snow extrudes an energy square box to incline or collapse is avoided, and the safety of the inner assembly of the energy square box is ensured.
Drawings
FIG. 1 is a block diagram of an energy storage system of the present invention;
FIG. 2 is a schematic diagram of the structure 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 schematic side cross-sectional view of the tilt baffle of the present invention;
FIG. 5 is an enlarged schematic view of the present invention at structure A;
FIG. 6 is a schematic view showing the internal structure of the hot air making drum of the present invention;
FIG. 7 is a schematic view of a portion of a drainage card of the present invention;
FIG. 8 is a schematic view of a part of the internal structure of a hot melt tube 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 cooling battery thermal management unit; 6. a centralized detection type intelligent fire-fighting system;
7. snow accumulation preventing mechanism; 71. a connecting seat; 72. a support base; 73. a tilting baffle; 74. a drainage clamping plate; 741. a drain hole; 742. connecting a water pipe; 743. a water storage cylinder; 7431. a movable cover; 7432. stainless steel filter cartridges; 7433. a drain valve; 7434. a screen plate; 7435. a first magnetic ring; 7436. a filter paper; 7437. a magnetic ring II; 744. a hot melt tube; 7441. a protruding block; 7442. a diversion trench; 7443. a hot melt finned tube; 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 assembly; 753. a blower; 754. a fixing ring; 755. a fibrous filter bag; 76. a fixed cylinder; 761. an elastic member; 762. a support leg; 763. a rubber dust-proof ring; 764. and vibrating the motor.
Detailed Description
The invention is further illustrated by the following examples:
example 1
As shown in fig. 1-9, the invention provides a full-functional lithium ion battery energy storage system, which comprises an energy square box body 1, wherein a battery pack 2 is arranged in the energy square box body 1, the battery pack 2 is arranged into sixteen groups, sixteen groups of battery packs 2 are arranged in the inner cavity of the energy square box body 1 in three rows, the inner part of the energy square box body 1 is provided with a full-functional high-voltage box 3, the number of the full-functional high-voltage boxes 3 is two, the two full-functional 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 pack 2, a liquid cooling type 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 thermal management unit 5 is fixedly arranged on 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, the top of the inner cavity of the energy square box body 1 is provided with a concentrated detection type intelligent fire protection system 6, sixteen groups of battery packs 2 are arranged into two clusters, each cluster of battery packs 2 are connected in series and are respectively electrically connected with the full-function high-voltage box 3, the full-function high-voltage box 3 is electrically connected with the liquid-cooled energy storage converter 4 through a lead, the liquid-cooled energy storage converter 4 can output alternating current to the outside, the full-function lithium ion battery energy storage system comprises a charging and discharging module, a temperature management module and a centralized detection type intelligent fire protection system 6, the battery packs 2 adopt IP67 vehicle-mounted battery packs, the inside of the battery packs cannot be filled with 'full-sealed' external air and dust, the system is more stable, the protection and monitoring functions of the battery system are realized by a BMS battery management system, the BMS system of the battery system is divided into three-level management, the main functions of each level BMS are as follows: BMU (fixed in battery pack): the voltage and the temperature of the single battery cell and the total voltage of a single tray are monitored, the information is transmitted to an upper BMS in real time through a CAN protocol, the voltage balance of the single battery cell CAN be controlled, and the MBMS (rack level, built-in a high-voltage box) is controlled: the total voltage and total current of the whole group of batteries are detected, the information is transmitted to the upper BMS in real time through a CAN protocol, the capacity and the health state of the batteries during charging and discharging CAN be displayed, the balance of the voltage of the relay switch and the cluster level unit is controlled, and the battery system level (BAMS) is: the lower-level MBMS information is collected, the residual capacity and the health condition of the battery CAN be estimated in real time, the battery is communicated with an upper system and an external system in a CAN (controller area network) or Modbus-TCP/IP (transmission control protocol/Internet protocol) mode, and the BMS CAN be integrated into a switch box or independently integrated according to the complexity degree of the system, so that the battery CAN be used for storing the battery, and the battery CAN be used for storing the battery in 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. 1-9, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the full-functional lithium ion battery energy storage system further comprises a charging and discharging module, and the charging and discharging module comprises the following steps: when the battery pack 2 is charged, an external power supply converts voltage and current through the liquid cooling type energy storage converter 4 into voltage and current which are 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 electric energy is converted into voltage and current required by the outside through the liquid cooling type energy storage converter 4, the external power is supplied, and the liquid cooling battery thermal management unit 5 is used for carrying out temperature balance management on the whole battery system and comprises the following components: the inside coolant liquid of liquid cooling battery thermal management unit 5 gets into liquid cooling pipeline feed liquor pipe through the liquid outlet, the coolant liquid of liquid cooling pipeline feed liquor inlet gets into the liquid cooling board of battery package 2 bottom, then flow into the drain pipe of liquid cooling pipeline from the liquid outlet of liquid cooling board, finally flow back into in the liquid cooling battery thermal management unit 5, the coolant liquid forms the circulation, can flow through the heat conduction region of every group battery package 2 bottom, make entire system reach balanced refrigeration effect, concentrated detection type intelligent fire extinguishing system 6 includes centralized detector, fire extinguishing medium and exhaust device, concentrated detection type intelligent fire extinguishing system 6 is used for carrying out fire protection to battery system and specifically does: the centralized detector CAN detect the concentration of CO and VOC harmful gas, the temperature sensor and the smoke sensor are integrated inside and are in CAN communication, the alarm level of the monitoring module CAN be reported regularly, the alarm level should be specified according to the level division rule, the alarm mode is divided into one, two, three and gradually increasing, when the detection alarm system sends one, two or three-level early warning, alarm information is sent to the background, the battery system requests to stop after receiving any early warning signal, the operation is stopped, the fire extinguishing system is automatically started after the fire extinguishing system gives three-level alarm, the specific strategy is as follows:
Figure BDA0003536274770000081
when a fire disaster occurs, a fire extinguishing medium is triggered, fire disaster information is uploaded to a battery management system at the first time, the battery management system cuts off the power supply of the energy square system, further expansion of the fire disaster is avoided, an exhaust device is used for reducing the concentration of combustible gas, when an inductor senses that the concentration or the temperature in the energy square box 1 exceeds the standard, the exhaust device is automatically started, the out-of-standard internal air is forcedly discharged out of the energy square box 1, and 50% V/50% V ethylene glycol/water solution is adopted as cooling liquid in the liquid cooling battery thermal management unit 5.
Example 3
As shown in fig. 1-9, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the top of the energy square box 1 is provided with an anti-snow mechanism 7, the anti-snow mechanism 7 comprises a connecting seat 71, the connecting seat 71 is fixedly arranged at the top of the energy square box 1, a fixed cylinder 76 is fixedly arranged at the top of the connecting seat 71, an elastic piece 761 is fixedly connected to the inner wall of the fixed cylinder 76, one end of the elastic piece 761, which is far away from the inner wall of the fixed cylinder 76, is fixedly connected with a supporting foot 762, the outer wall of the supporting foot 762 is fixedly connected with a rubber dust-proof ring 763, the outer wall of the rubber dust-proof ring 763 is fixedly connected with the inner wall of the fixed cylinder 76, the top of the supporting foot 762 is fixedly provided with a supporting seat 72, the bottom of the supporting seat 72 is fixedly provided with a vibration motor 764, the top of the supporting seat 72 is fixedly provided with an inclined baffle 73, the top of the inclined baffle 73 is fixedly provided with a drainage clamping plate 74, the top of the connecting seat 71 is fixedly provided with a hot air manufacturing cylinder 75, the side surface of the hot air manufacturing cylinder 75 is fixedly connected with a connecting 751, an electric heating component 752 and a fan 753 are fixedly arranged in the inner cavity of the hot air manufacturing cylinder 75, a fixed 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 fixed ring 754, a vibration motor 764 is controlled to work to drive a supporting seat 72 to vibrate, snow on the top of an inclined baffle 73 is caused to slide towards the inner cavity of a 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 a hot melting pipe 744 through a connecting air pipe 751, snow in the inner cavity of the drainage clamping plate 74 can be heated and melted through the outer wall of the hot melting pipe 744, water generated by melting can flow into the inner cavity of a water storage cylinder 743 through the connecting water pipe 742 to be stored, namely, the function of automatically treating the snow is realized, the problem that the snow is extruded to incline or collapse of an energy square box 1 is avoided, through the design of fiber filter bag 755, can filter fan 753 absorbing air, avoid too much impurity entering hot melt tube 744 inside problem in the air, the design of rubber dirt collar 763 for avoid the dust to fall into the inside problem of fixed section of thick bamboo 76.
Example 4
As shown in fig. 1-9, on the basis of embodiment 1, the present invention provides a technical solution: preferably, a drain hole 741 is arranged on the left side of the drain clamping plate 74, a connecting water pipe 742 is connected on the left side of the drain clamping plate 74 in a threaded manner, a movable cover 7431 is connected on one end of the connecting water pipe 742 far away from the drain clamping plate 74 in a threaded manner, a water storage cylinder 743 is detachably connected on the bottom of the movable cover 7431, a stainless steel filter cylinder 7432 is detachably connected on the bottom of the movable cover 7431, a drain valve 7433 is fixedly connected on 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 first magnetic ring 7435 is fixedly arranged on the top of the screen plate 7434, a filter paper 7436 is movably connected on the top of the first magnetic ring 7435, a second magnetic ring 7437 is movably connected on the top of the filter paper 7436, a hot melting pipe 744 is fixedly arranged on the side surface of an inner cavity of the drain clamping plate 74, one end of the connecting air pipe 751 far away from the hot air manufacturing cylinder 75 is in threaded manner with the end of the hot melting pipe 744, the inner wall of the hot melting pipe 744 is provided with the protruding block 7441, the guiding gutter 7442 is arranged in the hot melting pipe 744 and the protruding block 7441, the hot melting finned tube 7443 is fixedly connected to the outer wall of the hot melting pipe 744, the graphite heat transfer block 7444 is fixedly arranged on the outer wall of the hot melting pipe 744, the two ends of the graphite heat transfer block 7444 are fixedly welded with the heat transfer fork rod 7445, water generated by removing snow can be collected through the water storage cylinder 743, the problem that accumulated water is sputtered into the energy square box 1 is avoided, the collected water can be purified through the stainless steel filter cylinder 7432 and the filter paper 7436, a user can recycle the collected water conveniently, part of hot air can be guided into the inner cavity of the hot melting finned tube 7443 through the design of the protruding block 7441 and the guiding gutter 7442, the heating and melting effects are improved, and the snow removing speed of heating is further improved through the design of the graphite heat transfer block 7444 and the heat transfer fork rod 7445.
The working principle of the full-function lithium ion battery energy storage system is specifically described below.
As shown in fig. 1-9, when the battery pack 2 is charged, an external power supply performs voltage-current conversion through the liquid cooling type energy storage converter 4, the voltage-current conversion is converted into voltage-current adapted to a battery system, the battery pack 2 is charged through the full-function high-voltage box 3, when the battery pack 2 discharges, 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, external power supply is performed, in the use process, the concentration of CO and VOC harmful gas can be detected through the centralized detector, fire extinguishing medium is triggered when fire disaster occurs, and fire disaster information is timely uploaded to the battery management system, the power supply of the energy square system is cut off, the liquid cooling battery thermal management unit 5 is controlled, cooling liquid in the liquid cooling battery thermal management unit 5 can finally flow back into the liquid cooling battery thermal management unit 5 through the liquid cooling plate at the bottom of the battery pack 2, the effect of balanced refrigeration is achieved, if the electric heating device is used on snow days, the vibration motor 764 is controlled to work, the hot air is inclined to the inner cavity of the hot air baffle 73, the snow is guided into the inner cavity 74, the inner cavity of the hot air drain water drain 744 is controlled, the inner cavity of the hot air heat drain water 744 is automatically heated through the inner cavity of the hot air drain water, and the inner cavity of the snow drain water can be automatically melted through the function of the inner cavity of the hot air drain water drain 744.
The foregoing invention has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims (6)

1. The utility model provides a full-functional lithium ion battery energy storage system, includes energy square box (1), its characterized in that: the inside of energy square box (1) is provided with battery package (2), battery package (2) set up to sixteen groups, sixteen groups battery package (2) divide three to be listed as and install in the inner chamber of energy square box (1), the inside of energy square box (1) is provided with full-function high-voltage box (3), the quantity of full-function high-voltage box (3) sets up to two, two full-function high-voltage box (3) are all installed in the inner chamber of energy square box (1) and are located the bottom of battery package (2), the right side fixed mounting of energy square box (1) inner chamber has liquid-cooled energy storage converter (4), the intelligent fire control system is characterized in that a liquid cooling battery thermal management unit (5) is fixedly installed on the right side of an inner cavity of the energy square box body (1) and located at the top of the liquid cooling type energy storage converter (4), a centralized detection type intelligent fire control system (6) is arranged at the top of the inner cavity of the energy square box body (1), sixteen groups of battery packs (2) are arranged into two clusters, each cluster of battery packs (2) are connected in series and are respectively connected with the full-function high-voltage box (3) in an electric mode, the full-function high-voltage box (3) is connected with the liquid cooling type energy storage converter (4) in an electric mode through a conducting wire, the liquid cooling type energy storage converter (4) can output alternating current to the outside, and the full-function lithium ion battery energy storage system comprises a charging and discharging module, A temperature management module and a centralized detection type intelligent fire protection system (6);
the top of energy square box (1) is provided with snow prevention mechanism (7), snow prevention mechanism (7) includes connecting seat (71), connecting seat (71) fixed mounting is at the top of energy square box (1), the top fixed mounting of connecting seat (71) has fixed barrel (76), fixedly connected with elastic component (761) on the inner wall of fixed barrel (76), one end fixedly connected with stabilizer blade (762) of elastic component (761) keeping away from the inner wall of fixed barrel (76), fixedly connected with rubber dust collar (763) on the outer wall of stabilizer blade (762), the outer wall of rubber dust collar (763) and the inner wall fixed connection of fixed barrel (76), supporting seat (72) are installed at the top fixed mounting of stabilizer blade (762), vibrating motor (764) are installed to the bottom fixed mounting of supporting seat (72), hot air baffle (73) are installed at the top fixed mounting of inclined baffle (73) has cardboard (74), drainage card board (751) are installed at the top fixed mounting of hot air fan (75), hot air duct (75) are installed in manufacturing machine (75) and are installed in fixed mounting of hot air duct (75), a fixing ring (754) is fixedly welded in the inner cavity of the hot air manufacturing cylinder (75), and a fiber filter bag (755) is detachably connected to the side surface of the fixing ring (754);
a hot melting pipe (744) is fixedly arranged on the side surface of the inner cavity of the drainage clamping plate (74), and one end, far away from the hot air manufacturing cylinder (75), of the connecting air pipe (751) is in threaded connection with the end part of the hot melting pipe (744);
the left side of drainage cardboard (74) has seted up wash port (741), the left side threaded connection of drainage cardboard (74) has connecting water pipe (742), the one end threaded connection that water pipe (742) kept away from drainage cardboard (74) has movable lid (7431), the bottom dismantlement of movable lid (7431) is connected with water storage section of thick bamboo (743).
2. The full-featured lithium ion battery energy storage system of claim 1, wherein: the full-functional lithium ion battery energy storage system further comprises a charging and discharging module, wherein the charging and discharging module comprises the following steps: when the battery pack (2) is charged, an external power supply converts voltage and current into voltage and current which are matched with a battery system through the liquid cooling type energy storage converter (4), the battery pack (2) is charged through the control of the full-function high-voltage box (3), and 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 the external power is supplied through the conversion of the liquid cooling type energy storage converter (4) into voltage and current which are required by the outside.
3. The full-featured lithium ion battery energy storage system of claim 1, wherein: the liquid cooling battery thermal management unit (5) is used for carrying out temperature balance management on the whole battery system and comprises the following concrete steps: the cooling liquid in the liquid cooling battery thermal management unit (5) enters the liquid cooling pipeline liquid inlet pipe through the liquid outlet, the cooling liquid at the liquid cooling pipeline liquid inlet enters the liquid cooling plate at the bottom of the battery pack (2), then flows into the liquid outlet pipe of the liquid cooling pipeline from the liquid outlet of the liquid cooling plate, finally flows back into the liquid cooling battery thermal management unit (5), the cooling liquid forms circulation, and can flow through the heat conduction area at the bottom of each group of battery packs (2), so that the whole system achieves the balanced refrigeration effect.
4. The full-featured lithium ion battery energy storage system of claim 1, wherein: the centralized detection type intelligent fire-fighting system (6) comprises a centralized detector, a fire extinguishing medium and an exhaust device, and the centralized detection type intelligent fire-fighting system (6) is used for performing fire protection on a battery system and is specifically: the centralized detector CAN detect the concentration of CO and VOC harmful gas, the temperature sensor and the smoke sensor are integrated inside and are in CAN communication, the alarm level of the monitoring module CAN be reported regularly, the alarm level should specify the level division rule to trigger the fire extinguishing medium when a fire disaster occurs, and the fire disaster information is uploaded to the battery management system at the first time, so that the battery management system cuts off the power supply of the energy system, the further expansion of the fire disaster is avoided, and the exhaust device is used for reducing the concentration of the combustible gas.
5. The full-featured lithium ion battery energy storage system of claim 1, wherein: the bottom dismantlement formula of activity lid (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 section of thick bamboo (743), fixedly welded with otter board (7434) on the inner wall of water storage section of thick bamboo (743), the top fixed mounting of otter board (7434) has magnetic force ring one (7435), the top swing joint of magnetic force ring one (7435) has filter paper (7436), the top swing joint of filter paper (7436) has magnetic force ring two (7437).
6. The full-featured lithium ion battery energy storage system of claim 1, wherein: the inner wall of the hot melting pipe (744) is provided with a protruding block (7441), the inside of the hot melting pipe (744) and the protruding block (7441) is provided with a diversion trench (7442), the outer wall of the hot melting pipe (744) is fixedly connected with a hot melting finned tube (7443), the outer wall of the hot melting pipe (744) is fixedly provided with a graphite heat transfer block (7444), and two ends of the graphite heat transfer block (7444) are fixedly welded with a heat transfer fork rod (7445).
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