Energy storage power station and centralized thermal safety management system and method thereof

Abstract

The invention discloses an energy storage power station and a centralized thermal safety management system and method thereof, and relates to the field of energy storage power stations. The system comprises a control mechanism, a temperature control unit and a fire-fighting unit which are installed in a system cabin, and a fire-fighting detection alarm mechanism, a nozzle mechanism and a battery liquid cooling pipe network which are installed in each energy storage battery cabin, the temperature control unit and the fire fighting unit are electrically connected with the control mechanism, and the control mechanism is electrically connected with the master controller. The pipe network and valve control mechanism comprises a first pipe network and valve control assembly and a second pipe network and valve control assembly. The temperature control unit is connected with the battery liquid cooling pipe network through the first pipe network and the valve control assembly; the fire-fighting unit is connected with each nozzle mechanism through a second pipe network and a valve control assembly, fire-fighting valves connected with the nozzle mechanisms are controlled by corresponding fire-fighting detection alarm mechanisms, and the fire-fighting detection alarm mechanisms are electrically connected with the control mechanism. According to the invention, the cooling of each cabin of the whole energy storage power station and the centralized control of a fire extinguishing system are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage power stations, and in particular to an energy storage power station and a centralized thermal safety management system and method thereof. Background Art

[0002] Energy storage power station is a facility that stores electrical energy through chemical or physical means, mainly including battery energy storage, supercapacitor energy storage, etc. The technical core of energy storage power station is the battery management system (BMS), whose main function is to monitor the status of the battery, optimize the battery charging and discharging process, and ensure the safety and efficient operation of the battery. Another important component of the energy storage power station is the temperature control system, whose main function is to control the operating temperature of the battery to ensure the performance and life of the battery. In addition, the energy storage power station also needs to be equipped with a fire protection system to prevent safety accidents such as fire. The temperature control system is one of the key components of the energy storage power station. The existing temperature control systems mainly include air cooling, water cooling and phase change material cooling technologies. The air cooling system reduces the operating temperature of the battery through a fan, the water cooling system reduces the operating temperature of the battery through cooling water, and the phase change material cooling system reduces the operating temperature of the battery by absorbing the heat of the battery through the phase change material. The fire protection system is also one of the key components of the energy storage power station. The existing fire protection systems mainly include fire alarm systems and fire extinguishing systems. The fire alarm system detects fire signals in the battery compartment through sensors and transmits the signals to the control center. The fire extinguishing system extinguishes the fire through sprinklers or fire extinguishing agents.

[0003] Existing energy storage power stations usually use discrete temperature control systems and fire protection systems, that is, each battery compartment is equipped with an independent temperature control host and fire protection system. However, this design can achieve independent control of each battery compartment, but there are also some problems: (1) Since each battery compartment needs to be equipped with an independent temperature control host and fire protection system, the installation and commissioning process is relatively complicated and requires a lot of manpower and time; (2) Since the temperature control host and fire protection system of each battery compartment are independent, the cost is relatively high, which increases the construction and operation costs of the energy storage power station; (3) Since the temperature control host and fire protection system of each battery compartment are independent, the maintenance process is also cumbersome, and the temperature control host and fire protection system of each battery compartment need to be maintained separately, which increases the maintenance workload and maintenance costs. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes an energy storage power station and a centralized thermal safety management system and method thereof.

[0005] In a first aspect, the present invention provides a centralized thermal safety management system for an energy storage power station, wherein the energy storage power station includes a system cabin and a plurality of energy storage battery cabins, wherein the plurality of energy storage battery cabins are divided into a plurality of groups;

[0006] The centralized thermal safety management system includes: a master controller, a control mechanism, a temperature control unit, a fire fighting unit, a pipe network and a valve control mechanism, multiple fire detection and alarm mechanisms, multiple sprinkler mechanisms and multiple battery liquid cooling pipe networks;

[0007] The control mechanism, the temperature control unit and the fire fighting unit are all used to be installed in the system cabin, the temperature control unit and the fire fighting unit are electrically connected to the control mechanism respectively, and the control mechanism is electrically connected to the main controller;

[0008] Multiple fire detection alarm mechanisms are used to be installed in multiple energy storage battery compartments in a one-to-one correspondence;

[0009] A plurality of nozzle mechanisms are used to be installed in a plurality of energy storage battery compartments in a one-to-one correspondence; a plurality of battery liquid cooling pipe networks are used to be installed in a plurality of energy storage battery compartments in a one-to-one correspondence, each battery liquid cooling pipe network is used to transport and output cooling liquid to the cooling structure of each battery pack in the energy storage battery compartment where it is located, and the battery liquid cooling pipe networks in the same group are connected in series;

[0010] The pipe network and valve control mechanism includes a first pipe network and valve control component and a second pipe network and valve control component; the first pipe network and valve control component includes a water outlet pipe and a water return pipe; the second pipe network and valve control component includes a fire pipe, a plurality of fire branch pipes and a plurality of fire valves;

[0011] The temperature control unit is connected to the water inlet end of the battery liquid cooling network of each group through the water outlet pipe, and is connected to the drainage end of the battery liquid cooling network of each group through the return pipe;

[0012] The fire-fighting units are connected to a plurality of fire-fighting branches through fire-fighting pipes, the plurality of fire-fighting branches are connected to a plurality of sprinkler mechanisms one-to-one, a plurality of fire-fighting valves are arranged on the plurality of fire-fighting branches one-to-one, each fire-fighting valve is electrically connected to a corresponding fire-fighting detection and alarm mechanism, and the fire-fighting detection and alarm mechanism is electrically connected to a control mechanism.

[0013] Preferably, each fire detection alarm mechanism is used to detect the status information of the energy storage battery compartment in which it is located in real time, and judge whether the energy storage battery compartment has thermal runaway or has a tendency of thermal runaway according to the detected status information;

[0014] If yes, the fire detection alarm mechanism is used to determine the fire alarm level according to the detected status information; wherein the fire alarm level includes a low fire alarm level and a high fire alarm level;

[0015] If it is a low fire alarm level, the fire detection alarm mechanism is used to report the low fire alarm level information to the control mechanism;

[0016] The control mechanism is used to receive low-level fire alarm level information and report the low-level fire alarm level information to the main controller;

[0017] The master controller is used to receive low-level fire alarm level information, and according to the preset fire strategy corresponding to the low-level fire alarm level information, immediately control the charging and discharging actions of all batteries in the energy storage battery compartment, and control the opening of the smoke exhaust equipment of the energy storage battery compartment, and at the same time control the fire detection alarm mechanism through the control mechanism to alarm;

[0018] If it is a high-level fire alarm level, the fire detection alarm mechanism is used to report the high-level fire alarm level information to the control mechanism;

[0019] The control mechanism is used to receive the high-level fire alarm level information and report the high-level fire alarm level information to the main controller;

[0020] The main controller is used to receive high-level fire alarm level information, and according to the preset fire fighting strategy corresponding to the high-level fire alarm level, immediately control the stopping of the charging and discharging actions of all batteries in the energy storage battery compartment, and start the fire fighting valve corresponding to the energy storage battery compartment through the control mechanism and the fire detection alarm mechanism, and at the same time start the fire fighting unit through the control mechanism to output the fire extinguishing medium into the energy storage battery compartment.

[0021] In one embodiment, the control mechanism includes an MCU.

[0022] Preferably, the nozzle mechanism includes a cabin-level nozzle, which is used to be installed in the energy storage battery cabin.

[0023] Preferably, the nozzle mechanism includes a cabin-level nozzle and a cluster-level nozzle. The cabin-level nozzle is used to be installed in the energy storage battery cabin, and the cluster-level nozzle is used to be installed in the box of each battery cluster in the energy storage battery cabin.

[0024] Preferably, the nozzle mechanism includes cabin-level nozzles, cluster-level nozzles and PACK-level nozzles. The cabin-level nozzles are used to be installed in the energy storage battery cabin, the cluster-level nozzles are used to be installed in the boxes of each battery cluster in the energy storage battery cabin, and the PACK-level nozzles are used to be installed in the box of the battery PACK.

[0025] Preferably, each fire detection alarm mechanism comprises a cabin-level fire detection alarm component for installation in the energy storage battery compartment, and the cabin-level fire detection alarm component is electrically connected to the control mechanism and the corresponding fire valve respectively;

[0026] Alternatively, each fire detection and alarm mechanism includes a cabin-level fire detection and alarm component for installation in the energy storage battery cabin and a cluster-level fire detection and alarm component for installation in the box of the battery cluster, the cluster-level fire detection and alarm component is electrically connected to the cabin-level fire detection and alarm component, and the cabin-level fire detection and alarm component is electrically connected to the control mechanism and the corresponding fire valve respectively;

[0027] Alternatively, each fire detection and alarm mechanism includes a cabin-level fire detection and alarm component for installation in the energy storage battery cabin, a cluster-level fire detection and alarm component for installation in the box of the battery cluster, and a PACK-level fire detection and alarm component for installation in the box of the battery PACK. The PACK-level fire detection and alarm component, the cluster-level fire detection and alarm component and the cabin-level fire detection and alarm component are electrically connected in sequence, and the cabin-level fire detection and alarm components are electrically connected to the control mechanism and the corresponding fire valve, respectively.

[0028] Preferably, the fire fighting device is equipped with one or more of a liquid fire extinguishing medium, a gaseous fire extinguishing medium and a gas-liquid mixed medium.

[0029] In a second aspect, the present invention further proposes an energy storage power station, comprising a centralized thermal safety management system of the energy storage power station as described in any one of the first aspects.

[0030] In a third aspect, the present invention further proposes a centralized thermal safety management method for an energy storage power station, which is used in the centralized thermal safety management system for an energy storage power station described in any one of the first aspects, and is characterized by comprising:

[0031] Each fire detection alarm mechanism detects the status information of the energy storage battery compartment in which it is located in real time, and determines whether the energy storage battery compartment has thermal runaway or has a tendency to thermal runaway based on the detected status information;

[0032] If a fire detection and alarm agency determines that the energy storage battery compartment where it is located has thermal runaway or has a tendency to thermal runaway, the fire detection and alarm agency determines the fire alarm level according to the detected status information; wherein the fire alarm level includes a low fire alarm level and a high fire alarm level;

[0033] If it is a low fire alarm level, the fire detection alarm unit reports the low fire alarm level information to the control unit;

[0034] The control mechanism receives the low-level fire alarm level information and reports the low-level fire alarm level information to the main controller;

[0035] The main controller receives the low-level fire alarm level information, and according to the preset fire strategy corresponding to the low-level fire alarm level information, immediately controls the charging and discharging actions of all batteries in the energy storage battery compartment, controls the opening of the smoke exhaust equipment of the energy storage battery compartment, and controls the fire detection alarm mechanism to alarm through the control mechanism;

[0036] If it is a high-level fire alarm level, the fire detection and alarm agency reports the high-level fire alarm level information to the control agency;

[0037] The control mechanism receives the high-level fire alarm level information and reports the high-level fire alarm level information to the main controller;

[0038] The main controller receives the advanced fire alarm level information, and according to the preset fire fighting strategy corresponding to the advanced fire alarm level, immediately controls to stop the charging and discharging actions of all batteries in the energy storage battery compartment, and starts the fire fighting valve corresponding to the energy storage battery compartment through the control mechanism and the fire detection alarm mechanism, and at the same time starts the fire fighting unit through the control mechanism to output the fire extinguishing medium into the energy storage battery compartment.

[0039] In the present invention, the proposed energy storage power station and its centralized thermal safety management system and method eliminate the discrete temperature control host and fire protection system of a single energy storage battery compartment, and integrate the control mechanism, temperature control unit and fire protection unit in the same system compartment, saving more space for the battery compartment, improving space utilization, realizing centralized control of the cooling and fire protection systems of each energy storage battery compartment of the entire energy storage power station, realizing rapid response and timely handling of fires, improving fire alarm and fire extinguishing efficiency, reducing fire risks, thereby ensuring battery performance and life, and improving the uniformity and consistency of battery temperature through the centralized temperature control liquid cooling pipeline design. Moreover, this structural setting solves the problem of inconvenient maintenance, reduces maintenance workload and maintenance costs, improves maintenance efficiency, simplifies the installation and commissioning process, saves manpower and time, reduces the construction and operation costs of energy storage power stations, and improves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A block diagram of an energy storage power station in an embodiment of the present invention. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] Generally speaking, a plurality of battery clusters are arranged in an energy storage battery compartment, each battery cluster includes a plurality of battery PACKs, each battery PACK includes a plurality of batteries and a cooling structure for cooling the batteries in the battery PACK.

[0043] Reference Figure 1 , the present invention proposes a centralized thermal safety management system for a new energy storage power station, the energy storage power station includes a system cabin and a plurality of energy storage battery cabins, and the plurality of energy storage battery cabins are divided into a plurality of groups;

[0044] The system includes: a master controller, a control mechanism, a temperature control unit, a fire fighting unit, a pipe network and a valve control mechanism, a plurality of fire detection and alarm mechanisms, a plurality of sprinkler mechanisms and a plurality of battery liquid cooling pipe networks;

[0045] The control mechanism, the temperature control unit and the fire fighting unit are all used to be installed in the system cabin, the temperature control unit and the fire fighting unit are electrically connected to the control mechanism respectively, and the control mechanism is electrically connected to the main controller;

[0046] Multiple fire detection alarm mechanisms are used to be installed in multiple energy storage battery compartments in a one-to-one correspondence;

[0047] A plurality of nozzle mechanisms are used to be installed in a plurality of energy storage battery compartments in a one-to-one correspondence; a plurality of battery liquid cooling pipe networks are used to be installed in a plurality of energy storage battery compartments in a one-to-one correspondence, each battery liquid cooling pipe network is used to transport and output cooling liquid to the cooling structure of each battery pack in the energy storage battery compartment where it is located, and the battery liquid cooling pipe networks in the same group are connected in series;

[0048] The pipe network and valve control mechanism includes a first pipe network and valve control component and a second pipe network and valve control component; the first pipe network and valve control component includes a water outlet pipe and a water return pipe; the second pipe network and valve control component includes a fire pipe, a plurality of fire branch pipes and a plurality of fire valves;

[0049] The temperature control unit is connected to the water inlet end of the battery liquid cooling network of each group through the water outlet pipe, and is connected to the drainage end of the battery liquid cooling network of each group through the return pipe;

[0050] The fire-fighting units are connected to a plurality of fire-fighting branches through fire-fighting pipes, the plurality of fire-fighting branches are connected to a plurality of sprinkler mechanisms one-to-one, a plurality of fire-fighting valves are arranged on the plurality of fire-fighting branches one-to-one, each fire-fighting valve is electrically connected to a corresponding fire-fighting detection and alarm mechanism, and the fire-fighting detection and alarm mechanism is electrically connected to a control mechanism.

[0051] The present invention eliminates the discrete temperature control host and fire protection system of a single energy storage battery compartment, and integrates the control mechanism, temperature control unit and fire protection unit into the same system compartment, saving more space for the energy storage battery compartment, improving space utilization, realizing centralized control of the cooling and fire protection systems of each energy storage battery compartment of the entire energy storage power station, realizing rapid response and timely handling of fires, improving fire alarm and fire extinguishing efficiency, reducing fire risks, thereby ensuring battery performance and life, and improving the uniformity and consistency of battery temperature through the centralized temperature control liquid cooling pipeline design. Moreover, this structural setting solves the problem of inconvenient maintenance, reduces maintenance workload and maintenance costs, improves maintenance efficiency, simplifies the installation and commissioning process, saves manpower and time, reduces the construction and operation costs of energy storage power stations, and improves economic benefits.

[0052] Specifically, each fire detection alarm mechanism is used to detect the status information of the energy storage battery compartment in which it is located in real time, and determine whether the energy storage battery compartment has thermal runaway or has a tendency of thermal runaway based on the detected status information;

[0053] If so, the fire detection alarm mechanism is used to determine the fire alarm level according to the detected status information; wherein the fire alarm level includes a low fire alarm level and a high fire alarm level;

[0054] If it is a low fire alarm level, the fire detection alarm mechanism is used to report the low fire alarm level information to the control mechanism;

[0055] The control mechanism is used to receive low-level fire alarm level information and report the low-level fire alarm level information to the main controller;

[0056] The master controller is used to receive low-level fire alarm level information, and according to the preset fire strategy corresponding to the low-level fire alarm level information, immediately control the charging and discharging actions of all batteries in the energy storage battery compartment, and control the opening of the smoke exhaust equipment of the energy storage battery compartment, and at the same time control the fire detection alarm mechanism through the control mechanism to alarm;

[0057] If it is a high-level fire alarm level, the fire detection alarm mechanism is used to report the high-level fire alarm level information to the control mechanism;

[0058] The control mechanism is used to receive the high-level fire alarm level information and report the high-level fire alarm level information to the main controller;

[0059] The main controller is used to receive high-level fire alarm level information, and according to the preset fire fighting strategy corresponding to the high-level fire alarm level, immediately control the stopping of the charging and discharging actions of all batteries in the energy storage battery compartment, and start the fire fighting valve corresponding to the energy storage battery compartment through the control mechanism and the fire detection alarm mechanism, and at the same time start the fire fighting unit through the control mechanism to output the fire extinguishing medium into the energy storage battery compartment.

[0060] Since each energy storage battery compartment has an independent fire valve, when the fire extinguishing medium is output to a certain energy storage battery compartment, the normal operation of other battery compartments will not be affected.

[0061] In one embodiment, the control mechanism includes an MCU.

[0062] In another embodiment, the control mechanism includes an MCU and a PLC.

[0063] Specifically, the communication with the upper and lower level equipment is completed by the MCU, and the fire protection execution is completed by the PLC.

[0064] In this embodiment, the nozzle mechanism includes a cabin-level nozzle, which is used to be installed in the energy storage battery cabin.

[0065] In a further embodiment, the nozzle mechanism includes a cabin-level nozzle and a cluster-level nozzle. The cabin-level nozzle is used to be installed in the energy storage battery cabin, and the cluster-level nozzle is used to be installed in the box of each battery cluster in the energy storage battery cabin.

[0066] In a further embodiment, the nozzle mechanism includes a cabin-level nozzle, a cluster-level nozzle and a PACK-level nozzle. The cabin-level nozzle is used to be installed in the energy storage battery cabin, the cluster-level nozzle is used to be installed in the box of each battery cluster in the energy storage battery cabin, and the PACK-level nozzle is used to be installed in the box of the battery PACK.

[0067] Each fire detection alarm mechanism includes a cabin-level fire detection alarm component for installation in the energy storage battery compartment, and the cabin-level fire detection alarm component is electrically connected to the control mechanism and the corresponding fire valve respectively;

[0068] Alternatively, each fire detection and alarm mechanism includes a cabin-level fire detection and alarm component for installation in the energy storage battery cabin and a cluster-level fire detection and alarm component for installation in the box of the battery cluster, the cluster-level fire detection and alarm component is electrically connected to the cabin-level fire detection and alarm component, and the cabin-level fire detection and alarm component is electrically connected to the control mechanism and the corresponding fire valve respectively;

[0069] Alternatively, each fire detection and alarm mechanism includes a cabin-level fire detection and alarm component for installation in the energy storage battery cabin, a cluster-level fire detection and alarm component for installation in the box of the battery cluster, and a PACK-level fire detection and alarm component for installation in the box of the battery PACK. The PACK-level fire detection and alarm component, the cluster-level fire detection and alarm component and the cabin-level fire detection and alarm component are electrically connected in sequence, and the cabin-level fire detection and alarm components are electrically connected to the control mechanism and the corresponding fire valve, respectively.

[0070] In this embodiment, the fire fighting device is equipped with one or more of liquid fire extinguishing medium, gaseous fire extinguishing medium and gas-liquid mixed medium.

[0071] Wherein, the liquid fire extinguishing medium includes one or more of perfluorohexanone and dry water.

[0072] Gaseous extinguishing media include one or more of heptafluoropropane, nitrogen, and carbon dioxide

[0073] Gas-liquid mixed media include compressed air foam.

[0074] The present invention also proposes a centralized thermal safety management method for an energy storage power station, which is used in any of the centralized thermal safety management systems for energy storage power stations described above, comprising:

[0075] Each fire detection alarm mechanism detects the status information of the energy storage battery compartment in which it is located in real time, and determines whether the energy storage battery compartment has thermal runaway or has a tendency to thermal runaway based on the detected status information;

[0076] If a fire detection and alarm agency determines that the energy storage battery compartment where it is located has thermal runaway or has a tendency to thermal runaway, the fire detection and alarm agency determines the fire alarm level according to the detected status information; wherein the fire alarm level includes a low fire alarm level and a high fire alarm level;

[0077] If it is a low fire alarm level, the fire detection alarm unit reports the low fire alarm level information to the control unit;

[0078] The control mechanism receives the low-level fire alarm level information and reports the low-level fire alarm level information to the main controller;

[0079] The main controller receives the low-level fire alarm level information, and according to the preset fire strategy corresponding to the low-level fire alarm level information, immediately controls the charging and discharging actions of all batteries in the energy storage battery compartment, controls the opening of the smoke exhaust equipment of the energy storage battery compartment, and controls the fire detection alarm mechanism to alarm through the control mechanism;

[0080] If it is a high-level fire alarm level, the fire detection and alarm agency reports the high-level fire alarm level information to the control agency;

[0081] The control mechanism receives the high-level fire alarm level information and reports the high-level fire alarm level information to the main controller;

[0082] The main controller receives the advanced fire alarm level information, and according to the preset fire fighting strategy corresponding to the advanced fire alarm level, immediately controls to stop the charging and discharging actions of all batteries in the energy storage battery compartment, and starts the fire fighting valve corresponding to the energy storage battery compartment through the control mechanism and the fire detection alarm mechanism, and at the same time starts the fire fighting unit through the control mechanism to output the fire extinguishing medium into the energy storage battery compartment.

[0083] Reference Figure 1 , a new energy storage power station proposed by the present invention includes: a system cabin, a master controller, a plurality of energy storage battery cabins, a pipe network and a valve control mechanism;

[0084] The system cabin is provided with a control mechanism, a temperature control unit and a fire fighting unit, the temperature control unit and the fire fighting unit are electrically connected to the control mechanism respectively, and the control mechanism is electrically connected to the master controller;

[0085] Each energy storage battery compartment is equipped with a fire detection alarm mechanism, a sprinkler mechanism, and a battery liquid cooling pipe network for conveying and outputting coolant to the cooling structure of each battery pack in the energy storage battery compartment;

[0086] Multiple energy storage battery compartments are divided into multiple groups, and the battery liquid cooling pipe network of each group of energy storage battery compartments is connected in series.

[0087] The pipe network and valve control mechanism includes a first pipe network and valve control component and a second pipe network and valve control component; the first pipe network and valve control component includes a water outlet pipe and a water return pipe; the second pipe network and valve control component includes a fire pipe, a plurality of fire branch pipes and a plurality of fire valves;

[0088] The temperature control unit is connected to the water inlet end of the battery liquid cooling network of each group through the water outlet pipe, and is connected to the drainage end of the battery liquid cooling network of each group through the return pipe;

[0089] The fire-fighting units are connected to a plurality of fire-fighting branch pipes through fire-fighting pipes, the plurality of fire-fighting branch pipes are connected to a plurality of sprinkler mechanisms one-to-one, a plurality of fire-fighting valves are arranged on the plurality of fire-fighting branch pipes one-to-one, each fire-fighting valve is electrically connected to a fire-fighting detection and alarm mechanism of a corresponding energy storage battery compartment, and the fire-fighting detection and alarm mechanisms are electrically connected to a control mechanism.

[0090] In specific implementation, each fire detection alarm mechanism is used to detect the status information of the energy storage battery compartment in which it is located in real time, and judge whether the energy storage battery compartment has thermal runaway or has a trend of thermal runaway based on the detected status information;

[0091] If so, the fire detection alarm mechanism is used to determine the fire alarm level according to the detected status information; wherein the fire alarm level includes a low fire alarm level and a high fire alarm level;

[0092] If it is a low fire alarm level, the fire detection alarm mechanism is used to report the low fire alarm level information to the control mechanism;

[0093] The control mechanism is used to receive low-level fire alarm level information and report the low-level fire alarm level information to the main controller;

[0094] The master controller is used to receive low-level fire alarm level information, and according to the preset fire strategy corresponding to the low-level fire alarm level information, immediately control the charging and discharging actions of all batteries in the energy storage battery compartment, and control the opening of the smoke exhaust equipment of the energy storage battery compartment, and at the same time control the fire detection alarm mechanism through the control mechanism to alarm;

[0095] If it is a high-level fire alarm level, the fire detection alarm mechanism is used to report the high-level fire alarm level information to the control mechanism;

[0096] The control mechanism is used to receive the high-level fire alarm level information and report the high-level fire alarm level information to the main controller;

[0097] The main controller is used to receive high-level fire alarm level information, and according to the preset fire fighting strategy corresponding to the high-level fire alarm level, immediately control the stopping of the charging and discharging actions of all batteries in the energy storage battery compartment, and start the fire fighting valve corresponding to the energy storage battery compartment through the control mechanism and the fire detection alarm mechanism, and at the same time start the fire fighting unit through the control mechanism to output the fire extinguishing medium into the energy storage battery compartment.

[0098] In one embodiment, the control mechanism includes an MCU.

[0099] In another embodiment, the control mechanism includes an MCU and a PLC.

[0100] Specifically, the communication with the upper and lower level equipment is completed by the MCU, and the fire protection execution is completed by the PLC.

[0101] In this embodiment, the nozzle mechanism includes a cabin-level nozzle, and the cabin-level nozzle is installed in the energy storage battery cabin.

[0102] In a further embodiment, the nozzle mechanism includes a cabin-level nozzle and a cluster-level nozzle. The cabin-level nozzle is installed in the energy storage battery cabin, and the cluster-level nozzle is installed in the box of each battery cluster in the energy storage battery cabin.

[0103] In a further embodiment, the nozzle mechanism includes a cabin-level nozzle, a cluster-level nozzle and a PACK-level nozzle. The cabin-level nozzle is installed in the energy storage battery cabin, the cluster-level nozzle is installed in the box of each battery cluster in the energy storage battery cabin, and the PACK-level nozzle is installed in the box of the battery PACK.

[0104] In this embodiment, the fire fighting device is equipped with one or more of liquid fire extinguishing medium, gaseous fire extinguishing medium and gas-liquid mixed medium.

[0105] The liquid fire extinguishing medium includes one or more of perfluorohexanone and dry water.

[0106] Gaseous extinguishing media include one or more of heptafluoropropane, nitrogen, and carbon dioxide

[0107] Gas-liquid mixed media include compressed air foam.

[0108] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A centralized thermal safety management system for an energy storage power station, characterized in that: The energy storage power station includes a system cabin and a plurality of energy storage battery cabins, and the plurality of energy storage battery cabins are divided into a plurality of groups; The centralized thermal safety management system includes: a master controller, a control mechanism, a temperature control unit, a fire fighting unit, a pipe network and a valve control mechanism, multiple fire detection and alarm mechanisms, multiple sprinkler mechanisms and multiple battery liquid cooling pipe networks; The control mechanism, the temperature control unit and the fire fighting unit are all used to be installed in the system cabin, the temperature control unit and the fire fighting unit are electrically connected to the control mechanism respectively, and the control mechanism is electrically connected to the main controller; Multiple fire detection alarm mechanisms are used to be installed in each energy storage battery compartment in a one-to-one correspondence; A plurality of nozzle mechanisms are used to be installed in each energy storage battery compartment in a one-to-one correspondence; a plurality of battery liquid cooling pipe networks are used to be installed in each energy storage battery compartment in a one-to-one correspondence, and each battery liquid cooling pipe network is used to transport and output coolant to the cooling structure of each battery pack in the energy storage battery compartment, and the battery liquid cooling pipe networks in the same group are connected in series; The pipe network and valve control mechanism includes a first pipe network and valve control component and a second pipe network and valve control component; the first pipe network and valve control component includes a water outlet pipe and a water return pipe; the second pipe network and valve control component includes a fire pipe, a plurality of fire branch pipes and a plurality of fire valves; The temperature control unit is connected to the water inlet end of the battery liquid cooling network of each group through the water outlet pipe, and is connected to the drainage end of the battery liquid cooling network of each group through the return pipe; The fire-fighting units are connected to a plurality of fire-fighting branches through fire-fighting pipes, the plurality of fire-fighting branches are connected to a plurality of sprinkler mechanisms one-to-one, a plurality of fire-fighting valves are arranged on the plurality of fire-fighting branches one-to-one, each fire-fighting valve is electrically connected to a corresponding fire-fighting detection and alarm mechanism, and the fire-fighting detection and alarm mechanism is electrically connected to a control mechanism.

2. The centralized thermal safety management system of the energy storage power station according to claim 1, characterized in that: Each fire detection alarm mechanism is used to detect the status information of the energy storage battery compartment in which it is located in real time, and judge whether the energy storage battery compartment has thermal runaway or has a tendency of thermal runaway based on the detected status information; If yes, the fire detection alarm mechanism is used to determine the fire alarm level according to the detected status information; wherein the fire alarm level includes a low fire alarm level and a high fire alarm level; If it is a low fire alarm level, the fire detection alarm mechanism is used to report the low fire alarm level information to the control mechanism; The control mechanism is used to receive low-level fire alarm level information and report the low-level fire alarm level information to the main controller; The master controller is used to receive low-level fire alarm level information, and according to the preset fire strategy corresponding to the low-level fire alarm level information, immediately control the charging and discharging actions of all batteries in the energy storage battery compartment, and control the opening of the smoke exhaust equipment of the energy storage battery compartment, and at the same time control the fire detection alarm mechanism through the control mechanism to alarm; If it is a high-level fire alarm level, the fire detection alarm mechanism is used to report the high-level fire alarm level information to the control mechanism; The control mechanism is used to receive the high-level fire alarm level information and report the high-level fire alarm level information to the main controller; The main controller is used to receive high-level fire alarm level information, and according to the preset fire fighting strategy corresponding to the high-level fire alarm level, immediately control the stopping of the charging and discharging actions of all batteries in the energy storage battery compartment, and start the fire fighting valve corresponding to the energy storage battery compartment through the control mechanism and the fire detection alarm mechanism, and at the same time start the fire fighting unit through the control mechanism to output the fire extinguishing medium into the energy storage battery compartment.

3. The centralized thermal safety management system of the energy storage power station according to claim 1, characterized in that: The nozzle mechanism includes a cabin-level nozzle, which is used to be installed in the energy storage battery cabin.

4. The centralized thermal safety management system of the energy storage power station according to claim 1, characterized in that: The nozzle mechanism includes a cabin-level nozzle and a cluster-level nozzle. The cabin-level nozzle is used to be installed in the energy storage battery cabin, and the cluster-level nozzle is used to be installed in the box of each battery cluster in the energy storage battery cabin.

5. The centralized thermal safety management system of the energy storage power station according to claim 1, characterized in that: The nozzle mechanism includes cabin-level nozzles, cluster-level nozzles and PACK-level nozzles. The cabin-level nozzles are used to be installed in the energy storage battery cabin, the cluster-level nozzles are used to be installed in the boxes of each battery cluster in the energy storage battery cabin, and the PACK-level nozzles are used to be installed in the box of the battery PACK.

6. The centralized thermal safety management system of the energy storage power station according to claim 1, characterized in that: The fire-fighting device is equipped with one or more of liquid fire-extinguishing media, gaseous fire-extinguishing media and gas-liquid mixed media.

7. The centralized thermal safety management system of the energy storage power station according to claim 1, characterized in that: Each fire detection alarm mechanism includes a cabin-level fire detection alarm component for installation in the energy storage battery compartment, and the cabin-level fire detection alarm component is electrically connected to the control mechanism and the corresponding fire valve respectively; Alternatively, each fire detection and alarm mechanism includes a cabin-level fire detection and alarm component for installation in the energy storage battery cabin and a cluster-level fire detection and alarm component for installation in the box of the battery cluster, the cluster-level fire detection and alarm component is electrically connected to the cabin-level fire detection and alarm component, and the cabin-level fire detection and alarm component is electrically connected to the control mechanism and the corresponding fire valve respectively; Alternatively, each fire detection and alarm mechanism includes a cabin-level fire detection and alarm component for installation in the energy storage battery cabin, a cluster-level fire detection and alarm component for installation in the box of the battery cluster, and a PACK-level fire detection and alarm component for installation in the box of the battery PACK. The PACK-level fire detection and alarm component, the cluster-level fire detection and alarm component and the cabin-level fire detection and alarm component are electrically connected in sequence, and the cabin-level fire detection and alarm components are electrically connected to the control mechanism and the corresponding fire valve, respectively.

8. An energy storage power station, comprising a centralized thermal safety management system for an energy storage power station as claimed in any one of claims 1 to 7.

9. A centralized thermal safety management method for an energy storage power station, used in the centralized thermal safety management system for an energy storage power station according to any one of claims 1 to 7, characterized in that: include: Each fire detection alarm mechanism detects the status information of the energy storage battery compartment in which it is located in real time, and determines whether the energy storage battery compartment has thermal runaway or has a tendency to thermal runaway based on the detected status information; If a fire detection and alarm agency determines that the energy storage battery compartment where it is located has thermal runaway or has a tendency to thermal runaway, the fire detection and alarm agency determines the fire alarm level according to the detected status information; wherein the fire alarm level includes a low fire alarm level and a high fire alarm level; If it is a low fire alarm level, the fire detection alarm unit reports the low fire alarm level information to the control unit; The control mechanism receives the low-level fire alarm level information and reports the low-level fire alarm level information to the main controller; The main controller receives the low-level fire alarm level information, and according to the preset fire strategy corresponding to the low-level fire alarm level information, immediately controls the charging and discharging actions of all batteries in the energy storage battery compartment, controls the opening of the smoke exhaust equipment of the energy storage battery compartment, and controls the fire detection alarm mechanism to alarm through the control mechanism; If it is a high-level fire alarm level, the fire detection and alarm agency reports the high-level fire alarm level information to the control agency; The control mechanism receives the high-level fire alarm level information and reports the high-level fire alarm level information to the main controller; The main controller receives the advanced fire alarm level information, and according to the preset fire fighting strategy corresponding to the advanced fire alarm level, immediately controls to stop the charging and discharging actions of all batteries in the energy storage battery compartment, and starts the fire fighting valve corresponding to the energy storage battery compartment through the control mechanism and the fire detection alarm mechanism, and at the same time starts the fire fighting unit through the control mechanism to output the fire extinguishing medium into the energy storage battery compartment.

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