CN112967469A - Be applied to eruption gas of energy storage power station and restrain device of sending out - Google Patents

Be applied to eruption gas of energy storage power station and restrain device of sending out Download PDF

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Publication number
CN112967469A
CN112967469A CN202110347583.5A CN202110347583A CN112967469A CN 112967469 A CN112967469 A CN 112967469A CN 202110347583 A CN202110347583 A CN 202110347583A CN 112967469 A CN112967469 A CN 112967469A
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China
Prior art keywords
gas
station
monitoring
alarm
energy storage
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CN202110347583.5A
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Chinese (zh)
Inventor
郭韵
顾万选
刘景龙
尹世界
张诺楠
杨凯
欧阳叶郁
陈思文
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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Priority to CN202110347583.5A priority Critical patent/CN112967469A/en
Publication of CN112967469A publication Critical patent/CN112967469A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/16—Combustible gas alarms
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages

Abstract

The invention relates to a eruption gas anti-explosion device applied to an energy storage power station, which comprises a control host, a monitoring mechanism, an alarm mechanism, a gas spray head and a pressure relief mechanism, wherein the control host is provided with an operating switch, a UPS (uninterrupted power supply) and a communication interface and is electrically connected with an in-station power supply and a battery management system of the energy storage power station through the UPS and the communication interface respectively; the monitoring mechanism is used for monitoring and recording a plurality of parameters in the station and feeding back data to the control host; the alarm mechanism is linked with the monitoring mechanism and is used for sending out corresponding alarm under the control of the control host when the monitoring parameters are abnormal; the gas nozzle is connected with a gas fire extinguisher in the station and is used for starting to extinguish fire when the monitoring parameter does not return to normal or open fire is generated after the preset time; the pressure relief mechanism is used for opening when the monitoring parameters are abnormal and discharging combustible and explosive substances in time. Compared with the prior art, the invention has higher safety and better reliability and can protect the safety of workers.

Description

Be applied to eruption gas of energy storage power station and restrain device of sending out
Technical Field
The invention relates to an energy storage power station, in particular to a eruption gas hair suppression device applied to the energy storage power station.
Background
In the use process of the lithium battery pack, various electrochemical changes and physical changes lead to generation of a large amount of heat, if the heat cannot be well diffused or local extrusion is formed, the capacity, the service life and the like of the battery system can be affected, and even fire risks exist under extreme conditions, wherein the fire risks include traditional transformer fire, cable fire and the like and also include battery fire. Organic lithium batteries have a significant risk of fire compared to aqueous batteries such as flow batteries and lead-acid batteries. Under the abuse conditions of overcharge, overdischarge, short circuit, extrusion and the like, a series of exothermic reactions such as the reaction of positive and negative electrodes and electrolyte, the decomposition of the electrolyte and the like occur inside the lithium battery, so that the thermal runaway of the battery is caused, and the fire disaster is caused. The lithium battery fire has the characteristics of high fire speed, strong toxicity of thermal decomposition products, difficult fire extinguishment and the like. The explosion risks mainly comprise two types of battery body explosion and power transformation equipment explosion. At present, the combustion characteristics of the solid combustible materials and electrolyte liquid combustible materials of the iron phosphate lithium battery are developed to a certain degree, and the method is mainly used for qualitative experimental research on a small-capacity module formed by combining a single battery cell or a plurality of battery cells. Some teams at home and abroad research the thermal runaway and thermal expansion early formation identification method, and the method mainly comprises the following methods: firstly, researching by taking temperature, voltage, current and discharge rate parameters of a battery meter body acquired by a BMS as judgment conditions; a detection method based on the pressure strain of the battery module; thirdly, detecting and researching thermal runaway based on internal resistance change; fourthly, carrying out thermal runaway test caused by battery overcharge and heating, collecting gas, and analyzing gas components and content by using a chromatographic analysis method to judge the thermal runaway early warning method. With research and development of new lithium ion battery materials, innovation of battery manufacturing technologies and participation of numerous scientific research institutions and enterprises, the performance of lithium ion batteries is increasingly improved, and the safety performance of the single body is also greatly improved. However, the capacity of the single batteries of the large-scale energy storage system is larger, the number of the single batteries of the battery cluster is larger, the parallel connection number of the battery clusters is larger, the current of the battery stack is larger, the charging and discharging depth of the battery cluster is deeper, the running consistency and the service life requirements of the battery cluster are stricter, the local thermal runaway phenomenon is easy to occur in the using process, and huge potential safety hazards exist. Due to the inconsistency of the battery monomers, the danger of a battery module or a battery cluster formed by connecting a plurality of battery cells in series and in parallel is greatly increased, and the research on the combustion characteristics of the large-capacity battery module or the battery cluster is less. Relevant studies have shown that: the main reaction form of the lithium iron phosphate battery is to continuously release a large amount of combustible smoke under the overcharge condition, the duration is long, active ignition or explosion generally cannot occur, but a large amount of toxic combustible smoke is generated in the thermal runaway process of the battery, and the risk of explosion is caused in a closed space. However, the existing research proves that the solid fire extinguishing agent has poor fire extinguishing effect on the lithium battery, water has strong cooling capacity, some experiments prove that the water mist has good fire extinguishing effect, and some experiments prove that the fire extinguishing effect is poor. The water mist still has the condition of failure for a small-capacity lithium iron phosphate battery, and if the water mist is applied to a large-scale energy storage cabin, risks are inevitable.
Disclosure of Invention
Based on the analysis of the prior art, the lithium ion battery is accompanied by slow release of combustible gas, pressure relief, release of electrolyte and reaction gas, rapid decomposition to generate smoke and generation of high heat to flame in the whole process of thermal runaway caused by the lithium ion battery and external conditions including final combustion. The battery system is generally in a steady-state battery pack environment, and the acquired data show steady-state change characteristics relative to a normal steady-state environment, and once thermal runaway occurs, abnormal changes of data of weather sensors, smoke sensors, temperature sensors and photosensitive sensors are caused. Therefore, the thermal safety standard and the early warning parameters of the energy storage battery are researched by determining the variation of the battery parameters and the difference of the presented phenomena at different stages through experiments.
The invention aims to overcome the defects in the prior art and provide the eruption gas fire suppression device which is higher in safety, better in reliability and capable of protecting the safety of workers and is applied to the energy storage power station.
The purpose of the invention can be realized by the following technical scheme:
a eruption gas anti-explosion device applied to an energy storage power station comprises a control host, and a monitoring mechanism, an alarm mechanism, a gas nozzle and a pressure relief mechanism which are electrically connected with the control host, wherein the control host is provided with an operation switch, a UPS (uninterrupted power supply) and a communication interface and is electrically connected with an in-station power supply and a battery management system of the energy storage power station through the UPS and the communication interface respectively;
the monitoring mechanism is used for monitoring and recording a plurality of parameters in the station and feeding back data to the control host;
the alarm mechanism is linked with the monitoring mechanism and is used for sending out corresponding alarm under the control of the control host when the monitoring parameters are abnormal;
the gas nozzle is connected with a gas fire extinguisher in the station and is used for starting to extinguish fire when the monitoring parameters do not return to normal or open fire is generated after the preset time;
the pressure relief mechanism is used for opening when the monitoring parameters are abnormal, and discharging combustible and explosive substances in time.
Preferably, the monitoring mechanism comprises a temperature monitor, a smoke monitor and a combustible gas monitor which are commercially available and are respectively and electrically connected with the control host.
Preferably, the alarm mechanism comprises a temperature alarm, a smoke alarm and a combustible gas alarm which are linked with the monitoring mechanism, and a spraying indicator lamp which is linked with the gas nozzle.
Preferably, the alarm mechanism takes the form of an audible/visual alarm.
Preferably, the control host is further connected with an in-station air conditioner, and is used for dynamically adjusting the discharge of cold air according to the temperature change in the station, and closing the in-station air conditioner before the monitoring parameters are abnormal and the gas spray head is started.
Preferably, the indoor air conditioner is further electrically connected with a battery management system.
Preferably, the pressure relief mechanism is arranged on the energy storage power station and provided with a pressure relief valve, and the pressure relief valve is electrically connected with the control host.
Preferably, the operation switches include an automatic start/stop switch, a manual start/stop switch, and an automatic/manual changeover switch.
Preferably, the UPS power source is an online interactive UPS power source.
Preferably, the communication interface comprises a switch interface, a Profibus interface, an RS485 interface and/or a Namur switch.
The device for suppressing the eruption of the fuel gas is connected with the battery management system, so that information sharing can be realized, and the effect of cooperative work is achieved. The whole device consists of a control host, an alarm mechanism, a monitoring mechanism, a gas nozzle, a pressure relief mechanism and the like. The device is internally provided with a control host, and the control host is internally provided with an online interactive UPS power supply which can ensure the normal power supply of the energy storage power station under the condition of circuit failure. The control host is responsible for power management of the whole device, collecting real-time data measured by a monitoring mechanism in the device, storing and backing up the data, and calling the data when needed. The control host is also provided with a plurality of communication interfaces which mainly comprise a switch interface, a Profibus interface, an RS485 interface and/or a Namur switch, and can meet the common networking communication mode. The communication interface is connected with a battery management system in the station, and a safety management strategy intelligently linked with the battery monitoring system is adopted to control the pressure relief mechanism in the energy storage cabin, so that combustible and explosive substances are ensured to be discharged as soon as possible when abnormality occurs in the station. The control host is connected with the air conditioner in the station simultaneously, can dynamically adjust cold air according to measured temperature data in the station, and more importantly, the air conditioner can be closed before the fire extinguishing device is started when an accident happens. The control host is connected with the communication line and each monitor in the station through power supply of internal equipment, and the monitors are responsible for monitoring and recording dynamic parameters such as gas concentration, smoke concentration and temperature in the station and feeding back data to the control host. The alarm mechanism is connected with the control host through an alarm circuit, and when the host receives abnormal data fed back by the monitoring mechanism, the alarm mechanism is started. The energy storage power station is internally provided with a temperature alarm, a smoke alarm and a gas alarm, the three alarms are respectively linked with the corresponding monitors, the three alarms independently acquire corresponding monitoring data, and when a certain data is abnormal, the corresponding alarm can give an alarm, so that the accident reason can be directly judged. If parameters such as gas concentration, temperature and the like are not recovered to be normal within a certain time or open fire is generated, the control host directly starts a gas nozzle in the station to spray gas through a circuit of a fire extinguisher starting device to extinguish fire, and the gas nozzle has a time delay function, so that workers can be guaranteed to withdraw from the accident site in time. Meanwhile, a complete operation switch module is arranged in the control host, the whole fire extinguishing device can be in an automatic mode, namely, a starting or stopping command is directly sent out by the system, and the fire extinguishing device can also be switched into a manual mode through an automatic/manual switching switch, so that the personnel safety is ensured under the condition that workers exist in the station.
Compared with the prior art, the fire extinguishing agent has higher safety, some tests in the existing research prove that the water mist has good fire extinguishing effect, some tests prove that the fire extinguishing effect is poor, meanwhile, the water mist has the failure condition for the small-capacity lithium iron phosphate battery, if the water mist is applied to a large-scale energy storage cabin, the risk is inevitable, and the problem can be avoided by adopting gas as the fire extinguishing agent. Secondly, the monitoring system of the assembled multi-monitor combination can accurately acquire the changes of parameters such as gas concentration, temperature and the like in the battery compartment, and then makes corresponding actions according to the set thermal safety standard and early warning parameters under the action of the linkage system. In addition, the manual mode and the delayed eruption function of the system configuration can play a role in protecting the personal safety of workers.
Drawings
Fig. 1 is a schematic structural view of the eruption gas hair suppression device of the present invention.
Fig. 2 is a schematic view of a communication interface of the eruption gas suppressing device of the present invention.
Fig. 3 is a schematic view of a monitoring mechanism of the eruption gas hair suppression device of the present invention.
Fig. 4 is a schematic view of an alarm mechanism of the eruption gas hair suppression device of the present invention.
Fig. 5 is a schematic view of an operation switch of the eruption gas suppressing device of the present invention.
In the figure, 1 is a control host, 11 is an operation switch, 111 is an automatic start/stop switch, 112 is a manual start/stop switch, 113 is an automatic/manual change-over switch, 12 is a UPS power supply, 13 is a communication interface, 131 is a switch interface, 132 is a Profibus interface, 133 is an RS485 interface, 134 is a Namur switch, 2 is a monitoring mechanism, 21 is a temperature monitor, 22 is a smoke monitor, 23 is a combustible gas monitor, 3 is an alarm mechanism, 31 is a temperature alarm, 32 is a smoke alarm, 33 is a combustible gas alarm, 34 is a spray indicator, 4 is a gas nozzle, 5 is a pressure relief mechanism, 6 is an in-station power supply, 7 is a battery management system, 8 is an in-station air conditioner, and 9 is a background.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
A eruption gas anti-explosion device applied to an energy storage power station is shown in figure 1 and comprises a control host 1, a monitoring mechanism 2, an alarm mechanism 3, a gas nozzle 4 and a pressure relief mechanism 5 which are electrically connected with the control host 1, wherein the control host 1 is provided with an operating switch 11, a UPS (uninterrupted power supply) 12 and a communication interface 13 and is electrically connected with an in-station power supply 6 and a battery management system 7 of the energy storage power station through the UPS 12 and the communication interface 13 respectively; the monitoring mechanism 2 is used for monitoring and recording a plurality of parameters in the station and feeding back data to the control host 1; the alarm mechanism 3 is linked with the monitoring mechanism 2 and is used for being controlled by the control host to send out corresponding alarm when the monitoring parameters are abnormal; the gas nozzle 4 is connected with a gas fire extinguisher in the station and is used for starting to extinguish fire when the monitoring parameters do not return to normal or open fire is generated after the preset time; the pressure relief mechanism 5 is used for opening when the monitored parameters are abnormal and discharging combustible and explosive substances.
More specifically, in the present embodiment:
as shown in fig. 3, the monitoring means 2 preferably includes a commercially available temperature monitor 21, a smoke monitor 22 and a combustible gas monitor 23, which are electrically connected to the control main unit 1. As shown in fig. 4, the alarm means 3 preferably includes a temperature alarm 31, a smoke alarm 32 and a combustible gas alarm 33 in conjunction with the monitoring means 2, and a spray indicator lamp 34 in conjunction with the gas shower 4. It is further preferred that the alarm means 3 take the form of an acoustic/optical alarm, although other forms of alarm may be selected as required. Preferably, the control host 1 is further connected to an in-station air conditioner 8 for dynamically adjusting the discharge of cold air according to the temperature change in the station, and turning off the in-station air conditioner 8 before the monitoring parameter is abnormal and the gas nozzle 3 is activated. The indoor air conditioner 8 is also electrically connected with the battery management system 7. Preferably, the pressure relief mechanism 5 is arranged on the energy storage power station, and the pressure relief mechanism 5 is provided with a pressure relief valve which is electrically connected with the control host 1. As shown in fig. 5, the operation switches 11 preferably include an automatic start/stop switch 111, a manual start/stop switch 112, and an automatic/manual changeover switch 113. The preferred UPS power source 12 is a line interactive UPS power source. As shown in fig. 2, the preferred communication interface 13 includes a switch interface 131, a Profibus interface 132, an RS485 interface 133, and/or a Namur switch 134.
The control host 1 is a main body and is responsible for managing all power supplies in the entire system and for coordinated control of the entire system. The control host 1 is internally provided with an online interactive UPS power supply which can ensure the normal power supply of the energy storage power station under the condition of circuit failure. When the monitoring mechanism 2 is designed at a position where relevant parameters can be conveniently measured in the energy storage power station according to actual conditions, after real-time data are monitored, the control host 1 can record the data and can store the data for inquiry. The built-in communication interface 13 is shown in fig. 2 and mainly comprises four types, namely a switch interface 131, a Profibus interface 132, an RS485 interface 133 and/or a Namur switch 134, the communication interface 13 is connected with the battery management system 7, information and data acquired by the control host 1 can be fed back to the battery management system 7 in time, efficient dynamic management of the battery module is realized, and the battery management system 7 feeds back the acquired data and information to the background 9 system for backup. The indoor air conditioner 8 is connected with the battery management system 8 and the control host 1, so that the cold air can be dynamically discharged according to the temperature change in the station. The monitoring mechanism 2 in the station is connected with the communication line and the control host 1 through power supply of internal equipment, as shown in fig. 3, mainly comprises a temperature monitor 21, a smoke monitor 22 and a gas monitor 23, which are respectively responsible for monitoring and recording dynamic parameters such as temperature, smoke concentration and gas concentration in the station, feeding data back to the control host 1, and the control host 1 makes response action according to preset thermal safety standards and early warning parameters. When the monitored parameters are abnormal, the control host 1 closes the air conditioner 8 in the station, opens the pressure relief mechanism 5, tries to discharge combustible and explosive substances in time, and the pressure relief mechanism 5 adopts the conventional arrangement in the field. Alarm mechanism 3 links to each other with main control system 1 through the alarm circuit, as shown in fig. 4, alarm mechanism includes temperature alarm 31, smoke alarm 32, gas alarm 33 and sprays pilot lamp 34, and three kinds of alarms link with the monitor that corresponds separately respectively, and the corresponding monitoring data of independent acquisition separately, when certain data is unusual, corresponding siren can send out the police dispatch newspaper, makes things convenient for the staff directly to judge the accident reason when taking place the accident. When the host receives the abnormal data fed back by the monitoring mechanism 2, the alarm mechanism 3 is started. If in a certain period of time, parameters such as gas concentration, temperature still do not recover to normal, or when having naked light to produce, control host 1 will directly start gas nozzle 4 in the station through fire extinguisher starting drive circuit, and gas nozzle 4 can carry out rational arrangement according to the overall arrangement of energy storage power station. At this time, the spraying indicator lamp 34 of the alarm mechanism 3 will be lighted up to remind the worker in time. The gas nozzle 4 has a time delay function to ensure that the personnel in the station can be provided with sufficient time to leave the eruption region after the alarm system gives an alarm. While the apparatus is provided with a user operation switch 11, as shown in fig. 5, the operation switch 11 includes an automatic start/stop switch 111, a manual start/stop switch 112, and an automatic/manual changeover switch 113. Under the automatic mode, the system can be according to the process directly start or stop gas shower nozzle 4 by control host 1 above, but when the staff inspects in the power station and maintains, there is great risk in the automatic mode, so need switch to manual mode this moment, and operating switch can adopt the form of button switch with the protection cover, also can adopt the form of wrench type switch, and each switch links to each other with the control host respectively.
In the embodiment, the control host 1 is a bay JB-QG-GST5000 controller, the UPS power supply 12 is a Meilanjapanese MGEGalaxy500 UPS, the temperature monitor 21 is a Demap Testo 890 infrared temperature monitor, the smoke alarm 22 is a Nuodifei ND-751P smoke monitor, the combustible gas monitor 23 is a Dongyi Ying SK-600 combustible gas monitor, the temperature alarm 31 is a Chuangsheng netaceae CS-HTP518B temperature alarm, the smoke alarm 32 is an Avermen JTY-GF-TX3190 smoke alarm, the combustible gas alarm 33 is a Chuangqi SST-9801B combustible gas alarm, and the spray indicator lamp 34 is a bay GST-LD-8317 spray indicator lamp.
Compared with the existing research results, the fire extinguishing agent has higher safety, some tests in the existing research prove that the water mist has good fire extinguishing effect, and some tests prove that the fire extinguishing effect is poor, meanwhile, the water mist still has failure condition for the small-capacity lithium iron phosphate battery, if the water mist is applied to a large-scale energy storage cabin, the risk is inevitable, and the problem can be avoided by adopting gas as the fire extinguishing agent. Secondly, the monitoring system of the assembled multi-monitor combination can accurately acquire the changes of parameters such as gas concentration, temperature and the like in the battery compartment, and then makes corresponding actions according to the set thermal safety standard and early warning parameters under the action of the linkage system. In addition, the manual mode and the delayed eruption function of the system configuration can play a role in protecting the personal safety of workers.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims (10)

1. The device is characterized by comprising a control host (1), a monitoring mechanism (2), an alarm mechanism (3), a gas nozzle (4) and a pressure relief mechanism (5), wherein the monitoring mechanism (2), the alarm mechanism (3), the gas nozzle (4) and the pressure relief mechanism are electrically connected with the control host (1), the control host (1) is provided with an operation switch (11), a UPS (uninterrupted power supply) and a communication interface (13), and is electrically connected with an in-station power supply (6) and a battery management system (7) of the energy storage power station through the UPS (12) and the communication interface (13) respectively;
the monitoring mechanism (2) is used for monitoring and recording a plurality of parameters in the station and feeding back data to the control host (1);
the alarm mechanism (3) is linked with the monitoring mechanism (2) and is used for being controlled by the control host to send out corresponding alarm when the monitoring parameters are abnormal;
the gas nozzle (4) is connected with a gas fire extinguisher in the station and is used for starting to extinguish fire when the monitoring parameters do not return to normal or open fire is generated after preset time;
the pressure relief mechanism (5) is used for opening when the monitored parameters are abnormal, and discharging combustible and explosive substances.
2. The device for suppressing the eruption of gas applied to the energy storage power station in accordance with claim 1, wherein said monitoring means (2) comprises a commercially available temperature monitor (21), a smoke monitor (22) and a combustible gas monitor (23), each of which is electrically connected to the control main unit (1).
3. The device for suppressing the eruption of gas applied to the energy storage power station in accordance with claim 2, characterized in that the alarm mechanism (3) comprises a temperature alarm (31), a smoke alarm (32) and a combustible gas alarm (33) linked with the monitoring mechanism (2), and a spray indicator (34) linked with the gas nozzle (4).
4. The device for suppressing the eruption of gas for energy storage power stations of claim 3, characterized in that said alarm means (3) take the form of an acoustic/optical alarm.
5. The device for suppressing the eruption of fuel gas for the energy storage power station as claimed in claim 2, wherein said control host (1) is further connected to an in-station air conditioner (8) for dynamically adjusting the discharge of cold air according to the temperature change in the station, and turning off the in-station air conditioner (8) before the monitoring parameters are abnormal and the gas nozzle (3) is activated.
6. The device for suppressing the eruption of fuel gas for the energy storage power station as claimed in claim 5, wherein said air conditioner (8) is further electrically connected to the battery management system (7).
7. The device for suppressing the eruption of fuel gas applied to the energy storage power station of claim 1, wherein the pressure relief mechanism (5) is arranged on the energy storage power station, the pressure relief mechanism (5) is provided with a pressure relief valve, and the pressure relief valve is electrically connected with the control host (1).
8. The device for suppressing the eruption of gas applied to the energy storage power station according to claim 1, wherein said operation switch (11) comprises an automatic start/stop switch (111), a manual start/stop switch (112) and an automatic/manual changeover switch (113).
9. The device for suppressing the eruption of gas as claimed in claim 1, wherein said UPS power source (12) is an online interactive UPS power source.
10. The device for suppressing the eruption of gas applied to the energy storage power station of claim 1, characterized in that, said communication interface (13) comprises a switch interface (131), a Profibus interface (132), an RS485 interface (133) and/or a Namur switch (134).
CN202110347583.5A 2021-03-31 2021-03-31 Be applied to eruption gas of energy storage power station and restrain device of sending out Pending CN112967469A (en)

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CN202110347583.5A CN112967469A (en) 2021-03-31 2021-03-31 Be applied to eruption gas of energy storage power station and restrain device of sending out

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110347583.5A CN112967469A (en) 2021-03-31 2021-03-31 Be applied to eruption gas of energy storage power station and restrain device of sending out

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CN112967469A true CN112967469A (en) 2021-06-15

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