Multi-layer prefabricated cabin stacking type energy storage system

Abstract

The invention provides a multi-layer prefabricated cabin stacking type energy storage system which comprises a plurality of prefabricated cabin frame modules, and each prefabricated cabin frame module comprises a supporting frame, a prefabricated cabin unit and a safety protection unit. The safety protection unit comprises a sensing assembly used for monitoring whether fire hazards exist in the prefabricated cabin unit or not, a fireproof curtain assembly used for being connected with the supporting frame to form an isolation sealing cavity wrapping the prefabricated cabin unit, and a smoke guiding-out assembly used for rapidly absorbing and guiding out smoke generated in the isolation sealing cavity. The multiple prefabricated cabin frame modules are stacked so that the occupied area of the energy storage system can be reduced, and the prefabricated cabin units and the safety protection units are jointly embedded into the supporting frame so that the corresponding prefabricated cabin units can be isolated from the environment of other prefabricated cabin frame modules under the condition that fire hazards occur. According to the invention, the space utilization efficiency of the energy storage system and the safety and reliability of operation in a near-person scene can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage, in particular to a multi-layer prefabricated cabin stacked energy storage system. BACKGROUND

[0002] With the continuous development of the energy industry, energy storage technology has gradually become the focus of attention. The prefabricated cabin energy storage system has become the mainstream technology form in industrial and commercial storage fields due to its high integration level, short deployment cycle, and strong modular adaptability. Its core is to integrate lithium ion battery clusters, PCS (Power Conversion System) converters, BMS (Battery Management System) battery management systems, and basic fire-fighting components (such as gas fire extinguishing devices and temperature detectors) in a standardized cabin body. It can be quickly landed in industrial parks, commercial buildings, community supporting areas, and other industrial and commercial storage scenes to realize peak clipping, demand management, emergency power supply, and other functions, thereby reducing the electricity cost of industrial and commercial users and improving the power supply reliability. However, in the actual promotion process of industrial and commercial storage projects, the structure design and safety protection scheme of the existing prefabricated cabin energy storage system gradually exposes the defects of not matching the application scene requirements, especially in the two dimensions of "space utilization efficiency" and "near-person scene safety", which form significant technical bottlenecks, seriously restricting the popularization and scene diversification development of industrial and commercial storage. SUMMARY

[0003] The present application aims to at least partially solve one of the technical problems in the related art.

[0004] To this end, the first purpose of the present application is to propose a multi-layer prefabricated cabin stacked energy storage system, which can not only reduce the occupied area of the energy storage system, but also isolate the corresponding prefabricated cabin unit and other prefabricated cabin frame modules in the case of fire hazards, thereby improving the space utilization efficiency of the energy storage system and the safety and reliability of the near-person scene operation.

[0005] To achieve the above purpose, the first aspect of the present application proposes a multi-layer prefabricated cabin stacked energy storage system, comprising: a plurality of prefabricated cabin frame modules stacked in the vertical direction, each prefabricated cabin frame module comprising at least a support frame, and a prefabricated cabin unit and a safety protection unit embedded in the support frame; wherein,

[0006] The safety protection unit comprises a sensing assembly, a smoke gas leading-out assembly and a fireproof curtain assembly; the sensing assembly is used for monitoring whether the prefabricated cabin unit has fire hazards; the fireproof curtain assembly is arranged at the top edge of the support frame and is used for unfolding when the prefabricated cabin unit has fire hazards and connecting with the support frame to form an isolated sealed cavity covering the prefabricated cabin unit; and the smoke gas leading-out assembly is used for absorbing and rapidly leading out the smoke gas generated in the isolated sealed cavity when the prefabricated cabin unit has fire hazards.

[0007] Optionally, the safety protection unit further comprises a comprehensive function pipe arranged at one side of the support frame and extending longitudinally, the comprehensive function pipe comprises at least a fire-fighting water pipe, a smoke exhaust main pipe and a cable pipe, and the comprehensive function pipes of adjacent prefabricated cabin frame modules are connected with each other.

[0008] Optionally, the prefabricated cabin unit comprises a direct-current prefabricated cabin and an alternating-current prefabricated cabin, the direct-current prefabricated cabin is embedded in the support frame to form a direct-current frame module, the alternating-current prefabricated cabin is embedded in the support frame to form an alternating-current frame module, a plurality of prefabricated cabin frame modules comprise one alternating-current frame module and at least one direct-current frame module stacked above the alternating-current frame module, and the direct-current prefabricated cabin and the alternating-current prefabricated cabin are electrically connected through corresponding cables in the cable pipe.

[0009] Optionally, the sensing assembly comprises a plurality of sensors connected with corresponding cables in the cable pipe, and the plurality of sensors comprise at least one or more combinations of a temperature sensor, a gas sensor, a fire sensor and a smoke sensor.

[0010] Optionally, the smoke gas leading-out assembly comprises a smoke exhaust branch pipe and a smoke suction port arranged together at the top of the support frame, and an electromagnetic valve arranged on the smoke exhaust branch pipe and used for controlling the on-off state of the smoke exhaust branch pipe, the smoke suction port is connected with the smoke exhaust main pipe through the smoke exhaust branch pipe.

[0011] Optionally, the energy storage system further comprises a control module, the control module is communicatively connected with the safety protection unit of each prefabricated cabin frame module through cables in the cable pipe, is used for receiving and processing the collected data of the sensing assembly, and judges whether the prefabricated cabin unit has fire hazards.

[0012] Optionally, the energy storage system further comprises an intelligent fire truck and a plurality of fire nodes adapted to the intelligent fire truck; the plurality of fire nodes are arranged at predetermined positions on the periphery of the prefabricated cabin frame module and are in communication with the underground fire water pipes; the intelligent fire truck is in communication connection with the control module and automatically connects with the fire nodes adjacent to the fire hazard when the prefabricated cabin unit has a fire hazard, and sprays water to extinguish the fire of the prefabricated cabin unit with the fire hazard.

[0013] Optionally, the intelligent fire truck comprises a communication unit, an automatic driving unit and an automatic telescopic nozzle; wherein,

[0014] The communication unit is in communication connection with the control module, is used for receiving the control instruction output by the control module, and outputs the control instruction to the automatic driving unit and the automatic telescopic nozzle, so that the intelligent fire truck moves to the fire node adjacent to the fire hazard and connects with it; and the automatic telescopic nozzle is longitudinally extended to a predetermined height adjacent to the fire hazard.

[0015] Optionally, the energy storage system further comprises a flue gas purification module, the flue gas purification module is in communication with the exhaust main pipe of the prefabricated cabin frame module through the underground flue gas duct, and provides negative pressure driving for the directional flow of flue gas along the exhaust main pipe.

[0016] Optionally, the support frame at least comprises a support bottom plate and a support top plate, and an inspection ladder connecting the support bottom plate and the support top plate, the prefabricated cabin unit is located on the support bottom plate and is spaced apart from the support top plate in the vertical direction, and the inspection ladders in the adjacent prefabricated cabin frame modules are connected with each other.

[0017] The multi-layer prefabricated cabin stacked energy storage system provided in the application has at least the following beneficial effects:

[0018] The application provides a multi-layer prefabricated cabin stacked energy storage system, comprising a plurality of prefabricated cabin frame modules stacked in a vertical direction, each of the prefabricated cabin frame modules comprising at least a support frame, a prefabricated cabin unit embedded in the support frame, and a safety protection unit. The safety protection unit comprises a sensing assembly, a smoke exhaust assembly, and a fireproof curtain assembly. The sensing assembly is used for monitoring whether the prefabricated cabin unit has a fire hazard. The fireproof curtain assembly is used for unfolding in the case that the prefabricated cabin unit has a fire hazard, and connecting with the support frame to form an isolated sealed cavity covering the prefabricated cabin unit. The smoke exhaust assembly is used for absorbing and rapidly discharging the smoke generated in the isolated sealed cavity. The application can reduce the occupied area of the energy storage system by stacking a plurality of prefabricated cabin frame modules. Meanwhile, the safety protection unit can isolate the corresponding prefabricated cabin unit from other prefabricated cabin frame modules in the case of a fire hazard, thereby improving the safety and reliability of the energy storage system in a near-person scenario.

[0019] Additional aspects and advantages of the application will be set forth in part in the description that follows, and in part will become apparent to those having ordinary skill in the art upon examination of the following or can be learned from practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A structural schematic diagram of a prefabricated cabin frame module is shown according to an embodiment of the application.

[0022] Figure 2 A structural schematic diagram of a support frame is shown according to an embodiment of the application.

[0023] Figure 3 A structural schematic diagram of an energy storage system is shown according to an embodiment of the application.

[0024] Figure 4 A structural schematic diagram of another energy storage system is shown according to an embodiment of the application.

[0025] 100 prefabricated cabin frame module; 101 direct-current frame module; 102 alternating-current frame module; 110 support frame; 1101 support bottom plate; 1102 support top plate; 1103 maintenance ladder; 120 prefabricated cabin unit; 121 direct-current prefabricated cabin; 122 alternating-current prefabricated cabin; 130 safety protection unit; 131 sensing assembly; 132 smoke exhaust assembly; 133 fireproof curtain assembly; 134 comprehensive function pipe; 210 intelligent fire fighting vehicle; 220 fire fighting node; 300 smoke purification module. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0027] According to one aspect of the present application, a multi-layer prefabricated cabin stacked energy storage system is provided, as shown in Figures 1-4 Each of the prefabricated cabin frame modules 100 comprises at least a support frame 110, and a prefabricated cabin unit 120 and a safety protection unit 130 embedded in the support frame 110.

[0028] In some embodiments, as shown in Figure 1 and Figure 2 The support frame 110 serves as the skeleton of the entire energy storage system, comprising at least a support bottom plate 1101 and a support top plate 1102, and an inspection ladder 1103 connecting the support bottom plate 1101 and the support top plate 1102, the prefabricated cabin unit 120 is located on the support bottom plate 1101 and is spaced apart from the support top plate 1102 in the vertical direction.

[0029] The support frame 110 comprises at least a support bottom plate 1101 and a support top plate 1102, and an inspection ladder 1103 connecting the support bottom plate 1101 and the support top plate 1102, the prefabricated cabin unit 120 is located on the support bottom plate 1101 and is spaced apart from the support top plate 1102 in the vertical direction, and the inspection ladders 1103 in adjacent prefabricated cabin frame modules 100 are connected to each other.

[0030] The support frame 110 is not only a physical support platform for the prefabricated cabin unit 120, but also a core channel integrating multiple system pipelines such as fire fighting, electrical, monitoring, etc. Its main structure can be composed of multiple structural steel beams and multiple structural steel plates by bolting or welding, forming a rectangular frame slightly larger than the outer dimension of the prefabricated cabin unit 120, so that the prefabricated cabin unit 120 can not only be embedded inside the support frame 110, but also reserve an inspection channel between the prefabricated cabin unit 120 and the frame, as well as reserved space for the construction of safety protection units 130 such as cable bridge waterproof pipes, smoke exhaust main pipes and fire water pipes, realizing efficient use of space and centralized management of functions.

[0031] Specifically, the cross-sectional dimension of the support top plate 1102 and the support bottom plate 1101 is larger than that of the prefabricated cabin unit 120, so that the support bottom plate 1101 can reserve necessary space around and at the bottom of the prefabricated cabin unit 120 when carrying the prefabricated cabin unit 120. These reserved spaces not only serve as standing platforms for maintenance personnel to facilitate daily maintenance and troubleshooting of the prefabricated cabin unit 120. Also, the maintenance ladders 1103 can be conveniently arranged on the sides to provide a safe and convenient vertical access for the workers, and the maintenance ladders 1103 in adjacent prefabricated cabin frame modules 100 are connected to each other, so that the workers can reach prefabricated cabin frame modules 100 at different heights.

[0032] In addition, these reserved spaces also provide space for the layout of integrated pipeline systems. The integrated pipeline system can be a comprehensive functional pipe 134 arranged longitudinally supported by the support frame 110. The comprehensive functional pipe 134 at least includes a cable pipe with a fireproof function, a flue gas pipe and a fire water pipe. These pipes not only realize electrical connection between different prefabricated cabin units 120 in the longitudinal direction, but also can be buried underground when in contact with the ground, ensuring the cleanliness and passability of the station ground.

[0033] Further, the fire water pipe in the comprehensive functional pipe 134 can also be connected to the external fire fighting system of the energy storage system layout site through the pre-buried underground fire water pipe, so that in the case of fire hazard inside the prefabricated cabin frame module 100, the internal fire fighting components can quickly spray water to achieve fire extinguishing.

[0034] In some embodiments, as shown in Figure 3 and Figure 4 The prefabricated cabin unit 120 as the core structural unit of the prefabricated cabin frame module 100 includes a direct current prefabricated cabin 121 and an alternating current prefabricated cabin. The direct current prefabricated cabin 121 is embedded in the support frame 110 to form a direct current frame module 101, and the alternating current prefabricated cabin is embedded in the support frame 110 to form an alternating current frame module 102. A plurality of prefabricated cabin frame modules 100 include at least one alternating current frame module 102 at the bottom, and a direct current frame module 101 stacked above the alternating current frame module 102, and the direct current prefabricated cabin 121 and the alternating current prefabricated cabin are electrically connected by corresponding cables in the cable pipe. That is, the prefabricated cabin frame module 100 realizes the stacking ability in the vertical direction through innovative structural optimization.

[0035] The direct current prefabricated cabin 121 as the core hub of direct current power processing and management in the multi-layer energy storage system, its core role is to accept the direct current power output by the energy storage battery cluster (or other direct current power equipment), complete the whole link processing of current collection, monitoring, protection and regulation, and provide stable and safe direct current input basis for subsequent alternating current side power conversion.

[0036] Specifically, the direct current prefabricated cabin 121 integrates battery clusters, battery management systems (BMS), direct current combiner cabinets, direct current circuit breakers and other core components inside. On the one hand, it can collect the direct current power of multiple dispersed battery clusters and realize centralized transmission of electric energy through the direct current combiner cabinet, avoiding the disorder and loss of multi-path wiring. On the other hand, the BMS can monitor key parameters such as the state of charge (SOC), the state of health (SOH), and the temperature state of the battery in real time, and cooperate with protection devices such as direct current circuit breakers and fuses to quickly cut off the circuit in the event of voltage overvoltage / undervoltage, current overcurrent, battery short circuit and other fault scenarios, preventing battery damage or causing safety accidents. At the same time, if the system needs to adjust the direct current voltage to adapt to the input requirements of the alternating current side inverter, the direct current prefabricated cabin 121 can also integrate a DC / DC converter to achieve flexible adaptation of direct current voltage. Finally, the direct current power processed by the direct current prefabricated cabin 121 will be accurately delivered to the alternating current prefabricated cabin through the direct current cable in the cable tube preset in the support frame 110, thereby ensuring the power quality and operation safety of the direct current link.

[0037] The alternating current prefabricated cabin is the terminal interface for direct current-alternating current conversion and external power interaction in the multi-layer energy storage system. Its core function is to convert the direct current power delivered by the direct current prefabricated cabin 121 into alternating current power that meets the grid standards or load requirements, and to realize grid-connected control, power quality optimization and safe grid connection / load supply. It is a key carrier for the system to interface with external alternating current networks (grid or alternating current load).

[0038] Specifically, the core devices of the alternating current prefabricated cabin include but are not limited to inverters (DC / AC) and grid-connected controllers (PCS). The inverter can efficiently convert direct current power to alternating current power, with a conversion efficiency of not less than 96%, and can accurately control the voltage amplitude, frequency and power factor of the output alternating current power through the PCS to ensure compliance with grid standards. At the same time, the alternating current prefabricated cabin can also integrate protection devices such as alternating current circuit breakers, lightning protectors and anti-islanding devices, which can quickly respond in scenarios such as alternating current side overload, ground fault, grid voltage anomaly (drop / rapid rise), etc. For example, the anti-islanding device can cut off the grid connection circuit within 2 seconds of power failure to prevent the system from feeding power back to the grid and causing safety accidents. In addition, if different voltage levels of the grid need to be adapted, the alternating current prefabricated cabin can also integrate a transformer to further expand the application scenarios of the system. Finally, the alternating current power processed by the alternating current prefabricated cabin can be directly connected to the grid to realize power grid connection, such as participating in peak regulation and frequency regulation, or supplying alternating current loads such as factory workshops and commercial buildings.

[0039] Since the AC frame module 102 needs to be connected to the external power grid or AC load, and the power grid interface and load distribution box are usually located on the ground or bottom area. Placing the AC frame module 102 on the bottom can greatly shorten the connection distance of the AC cable and reduce the power loss caused by cable resistance; at the same time, stacking the DC frame module 101 on the upper layer of the AC frame module 102 can shorten the DC cable connection length of the battery cluster between the DC frame modules 101, further reduce the transmission loss of the DC link, and overall improve the system energy efficiency.

[0040] Further, the core devices such as inverters and transformers integrated in the AC frame module 102 have a much greater weight than the DC frame module 101 (for example, a single 10kV transformer can weigh several tons), placing the heavier AC module on the bottom can significantly lower the center of gravity of the entire multi-prefabricated cabin frame module 100 stack, avoiding safety problems caused by heavy objects on the upper layer, especially in multi-layer stacking (such as 3-5 layers) scenarios, which can effectively improve the anti-overturning capability of the energy storage system and meet the building structure safety specifications.

[0041] Further, the energy storage system formed by stacking the multi-layer prefabricated cabin frame module 100 from bottom to top can arrange more prefabricated cabin units 120 in the same ground area, thereby greatly improving the energy storage density per unit area, especially suitable for urban user-side energy storage, industrial park energy storage, and other "ground space tight" scenarios, reducing land cost investment.

[0042] In addition, the AC frame module 102 is the interface terminal of the system and the external power grid, and needs to be frequently connected to the grid for parameter debugging, power quality monitoring, fault troubleshooting, and other operation and maintenance work. Placing the AC frame module 102 on the bottom eliminates the need for workers to climb high to operate, reducing the risk of high-altitude work for workers; while the DC frame module 101 also needs to be maintained (such as battery status inspection), but can be operated layer by layer through the pre-set maintenance ladder 1103 of the support frame 110, and the maintenance of the upper layer DC module does not affect the normal operation of the bottom layer AC module, achieving layered operation and mutual non-interference, and improving the overall operation and maintenance efficiency and safety.

[0043] In some embodiments, as shown in FIGS. 1A and 1B, the safety protection unit 130 is arranged on the top of the prefabricated cabin unit 120, and the safety protection unit 130 is arranged on the top of the prefabricated cabin unit 120. Figure 1 and 2 As shown, the safety protection unit 130 is the core guarantee for fire hazard monitoring, fire control, and smoke treatment in the energy storage system. Its core role is to block the fire spread path and reduce harmful smoke hazards through early monitoring, rapid fire control, and efficient smoke exhaust, to maximize the safety of the prefabricated cabin unit 120 and the maintenance personnel, and to avoid the expansion of the fire accident.

[0044] The safety protection unit 130 includes a sensing assembly 131, a smoke evacuation assembly 132, and a fireproof curtain assembly 133. The sensing assembly 131 is configured to monitor whether the prefabricated cabin unit 120 has a fire hazard, and capture real-time fire hazard signals such as smoke, high temperature, open flame, and the like, to provide a trigger basis for subsequent protection actions. The fireproof curtain assembly 133 is arranged at the edge of the support top plate 1102, and is linked with the sensing assembly 131 to form a sealed isolation chamber in cooperation with the support frame 110 when the sensing assembly 131 detects a fire hazard signal, and to physically isolate oxygen from the fire spread path by using the sealed isolation chamber. The smoke evacuation assembly 132 is arranged at the top of the prefabricated cabin unit 120, and is linked with the sensing assembly 131 to quickly remove toxic and harmful smoke in the sealed isolation chamber through the smoke evacuation assembly 132 when the sensing assembly 131 detects a fire hazard signal, thereby preventing the smoke from directly leaking out to pollute the environment and threaten the health of personnel, and avoiding the accumulation of smoke to intensify the fire.

[0045] The sensing assembly 131 is generally arranged at the top of the prefabricated cabin unit 120, such as the inside of the support top plate 1102 or the top of the prefabricated cabin unit 120, and near the key equipment of the prefabricated cabin unit 120, for example, the battery cluster area of the direct-current prefabricated cabin 121, the inverter periphery of the alternating-current prefabricated cabin, and the like, and part of the sensing assembly 131 is also arranged in layers along the vertical girders of the support frame 110, to ensure that the top, inside, and periphery of the prefabricated cabin unit 120 are monitored in all directions. The core function of the sensing assembly 131 is to capture real-time fire hazard signals of the prefabricated cabin unit 120 as the safety protection unit 130, to provide accurate and timely trigger basis for subsequent protection actions.

[0046] Specifically, the sensing assembly 131 generally integrates four types of monitoring functions of smoke sensing, temperature sensing, fire sensing, and gas sensing (such as detecting harmful gases CO, H2S, and the like generated by battery thermal runaway), including but not limited to one or more combinations of temperature sensors, gas sensors, fire sensors, and smoke sensors. Among them, the smoke sensor can capture a small amount of smoke generated by early fire in the prefabricated cabin frame module 100, such as white smoke in the early stage of battery thermal runaway; the temperature sensor can monitor abnormal temperature rise of the prefabricated cabin frame module 100, such as local high temperature caused by equipment overload; the fire sensor can directly identify open flames, such as flames caused by cable short circuit; and the gas sensor is designed for the battery characteristics of the direct-current prefabricated cabin 121, to detect the concentration of harmful gases such as CO and the like.

[0047] The smoke outlet assembly 132 is usually arranged at the middle of the support top plate 1102 or near the top of the prefabricated cabin unit 120, and specifically includes a smoke suction port, a smoke outlet branch pipe, and a solenoid valve arranged on the smoke outlet branch pipe for switching the on-off state of the smoke outlet branch pipe. The smoke suction port is connected with the smoke outlet main pipe through the smoke outlet branch pipe. The core function of the smoke outlet assembly 132 is to quickly absorb and directionally output the high-temperature and toxic smoke generated in the sealed isolation cavity when there is a fire hazard in the prefabricated cabin unit 120, so as to block the smoke diffusion path and reduce the harm. Thus, when the sensing assembly 131 triggers a fire warning, the solenoid valve arranged on the smoke outlet branch pipe in the corresponding prefabricated cabin frame module 100 will be immediately opened, and the smoke suction port starts negative pressure suction to quickly suck the smoke in the sealed isolation cavity formed by the support frame 110 and the fireproof curtain assembly 133 into the smoke outlet branch pipe, and then directionally output and centrally purify the smoke through the vertically laid smoke outlet main pipe. The smoke in the sealed isolation cavity includes SO2, HCL generated by battery combustion, and toxic dust generated by equipment combustion, etc.

[0048] As shown in FIG. 13, the smoke directionally output and central purification manner can be that the smoke outlet main pipe is connected with the smoke purification module 300. Specifically, the smoke outlet main pipe can be in communication with the inlet end of the pre-buried smoke pipe after extending to the ground, and the outlet end of the smoke pipe is connected with the smoke purification module 300, so that the smoke directionally output and central purification can be directionally output to the smoke purification module 300 and discharged after being harmlessly treated in the smoke purification module 300, thereby ensuring the safety of the surrounding environment. Figure 4 In addition, the smoke purification module 300 can also provide negative pressure driving for the smoke outlet main pipe, the smoke outlet branch pipe connected therewith, and the smoke outlet port in communication therewith, so that the smoke in the sealed isolation cavity can be directionally output to the smoke purification module 300 through the smoke suction port, the smoke outlet branch pipe, and the smoke outlet main pipe in sequence when the smoke outlet branch pipe is controlled to be conductive by the solenoid valve.

[0049] It should be noted that the whole smoke outlet and treatment process will continue until the concentration of harmful gas monitored by the sensing assembly 131 is reduced to a safe level.

[0050] In some embodiments, the energy storage system further includes a control module, and the control module is in communication connection with the safety protection unit 130 of each prefabricated cabin frame module 100 through the signal cable in the cable pipe, so as to receive and process the data collected by the sensing assembly 131, and determine whether there is a fire hazard in the prefabricated cabin unit 120.

[0051]

[0052] ​The control module receives the data collected by the sensing assembly 131 in each prefabricated cabin frame module 100 in real time through a special signal cable in the cable tube, including the smoke concentration, temperature in the cabin, open fire signal, harmful gas concentration and other data in each prefabricated cabin frame module 100, and performs real-time checking on the received data, and judges whether there is a fire hazard by comparing and analyzing the received real-time data with the preset standard threshold.

[0053] Specifically, the control module can use an AI analysis software or a hardware composed judgment unit, so that when the temperature sensing data of a certain layer of direct current prefabricated cabin 121 suddenly rises to 70℃ and the smoke sensing data exceeds the standard, the control module will determine whether there is a fire hazard in the layer of direct current prefabricated cabin 121 according to the current received parameters, instead of a single parameter exceeding the standard for early warning, avoiding unnecessary protection actions caused by misjudgment, and once it is determined that there is a fire hazard, the control module will immediately issue a control instruction to the safety protection unit 130 of the corresponding prefabricated cabin frame module 100, on the one hand, triggering the fireproof curtain assembly 133 to quickly expand to form an isolated sealed cavity; on the other hand, starting the smoke gas leading-out assembly 132, and also sending an alarm signal (such as an audible and visual alarm, and remote pushing to an operation and maintenance terminal) to the system general control, realizing the synchronous response of judgment, protection and alarm.

[0054] On the other hand, as shown in Figure 3 The energy storage system also includes an intelligent fire fighting vehicle 210 and a plurality of fire fighting nodes 220 adapted to the intelligent fire fighting vehicle 210. Since the installation or setting of the energy storage system may be limited by the site and space, it is difficult for the external fire fighting facilities to accurately and quickly enter the inside of the station in case of fire hazard of the existing energy storage system, resulting in deterioration of the fire hazard. The present application configures an independent intelligent fire fighting vehicle 210 in the energy storage system, so that the intelligent fire fighting vehicle 210 can quickly move to the fire fighting node 220 near the fire hazard and externally spray water to extinguish the fire in case of determination of the control module that there is a fire hazard. The fire fighting node 220 is connected to the fire fighting water pipe embedded in the ground to input the fire fighting water to the intelligent fire fighting vehicle 210. The plurality of fire fighting nodes 220 are arranged at a predetermined position on the side of the prefabricated cabin frame module 100 at intervals and surround the prefabricated cabin frame module 100, and are in communication with the fire fighting water pipe embedded underground, so that the intelligent fire fighting vehicle 210 can quickly communicate with any fire fighting node 220 near the fire hazard, and then quickly and efficiently externally spray water to extinguish the fire at the fire hazard position.

[0055] Specifically, the intelligent fire fighting vehicle 210 can specifically include a communication unit, an automatic driving unit and an automatic telescopic nozzle. Among them, the communication unit is used to connect with the control module communication module to receive the control instruction output by the control module, and the automatic driving unit moves to the fire fighting node 220 near the fire hazard according to the control instruction received by the communication unit, and is automatically connected with the fire fighting node 220. The automatic telescopic nozzle is quickly extended longitudinally to a preset height near or above the fire hazard according to the control instruction received by the communication unit, so as to externally spray water to extinguish the prefabricated cabin module unit with fire hazard.

[0056] Among them, the automatic telescopic nozzle of the intelligent fire fighting vehicle 210 can be a telescopic mechanical arm with built-in water pipe and nozzle, which can be raised to the height of the highest prefabricated cabin frame module 100, so as to spray water at a better angle and achieve better cooling and fire extinguishing. At the same time, the intelligent fire fighting vehicle 210 can also cooperate with the fire fighting device (communicated with the fire fighting water pipe in the comprehensive function pipe 134) in the prefabricated cabin frame module 100 to implement the fire extinguishing action synchronously inside and outside in the first time when the control module determines that there is a fire hazard, so as to improve the fire extinguishing efficiency.

[0057] It should be noted that the intelligent fire fighting vehicle 210 can be applied to the early stage and the middle stage of the fire hazard, at which time the intelligent fire fighting vehicle 210 is needed to quickly control the fire in the prefabricated cabin frame; the fireproof curtain assembly 133 can be used in the late stage of the fire hazard, at which time the fire in the prefabricated cabin frame has been basically controlled, but the concentration of toxic and harmful high-temperature gas produced by burning is still in the rising stage, so the fireproof curtain assembly 133 corresponding to the position needs to be called and a sealed isolation chamber is formed to isolate the harmful gas from the surrounding environment, and the smoke exhaust assembly 132 is used to quickly remove the toxic and harmful smoke gas in the sealed isolation chamber, which not only prevents the smoke gas from directly leaking out to pollute the environment and threaten the health of personnel, but also avoids the accumulation of smoke gas to intensify the fire.

[0058] In summary, the application provides a multi-layer prefabricated cabin stacked energy storage system, which comprises a plurality of prefabricated cabin frame modules 100 stacked in the vertical direction, each prefabricated cabin frame module 100 comprising at least a support frame 110, and a prefabricated cabin unit 120 and a safety protection unit 130 embedded in the support frame 110. The safety protection unit 130 comprises a sensing assembly 131 for monitoring whether the prefabricated cabin unit 120 has a fire hazard, a smoke exhaust assembly 132 for absorbing and quickly exhausting the smoke generated in the isolated sealed cavity, and a fireproof curtain assembly 133 for unfolding in the case of a fire hazard in the prefabricated cabin unit 120 and connecting with the support frame 110 to form an isolated sealed cavity covering the prefabricated cabin unit 120. The application can reduce the occupied area of the energy storage system by stacking a plurality of prefabricated cabin frame modules 100. At the same time, the safety protection unit 130 can also isolate the corresponding prefabricated cabin unit 120 from other prefabricated cabin frame modules 100 in the event of a fire hazard, thereby improving the safety and reliability of the energy storage system in a near-human scenario.

[0059] In the foregoing embodiment descriptions, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the description and the features of the different embodiments or examples without contradiction.

[0060] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

Claims

1. A multi-layer prefabricated stacked energy storage system, characterized in that, It includes multiple prefabricated cabin frame modules stacked vertically, each prefabricated cabin frame module including at least a support frame, and a prefabricated cabin unit and a safety protection unit embedded in the support frame; wherein, The safety protection unit includes a sensing component, a smoke extraction component, and a fire curtain component. The sensing component is used to monitor whether the prefabricated cabin unit poses a fire hazard. The fire curtain component is located at the top edge of the support frame and is deployed when a fire hazard exists in the prefabricated cabin unit, forming an isolated and sealed cavity that covers the prefabricated cabin unit. The smoke extraction component is used to absorb and quickly extract the smoke generated in the isolated and sealed cavity when a fire hazard exists in the prefabricated cabin unit.

2. The energy storage system according to claim 1, characterized in that, The safety protection unit also includes a comprehensive functional pipe extending longitudinally on one side of the support frame. The comprehensive functional pipe includes at least a fire water pipe, a smoke exhaust main pipe, and a cable pipe, and the comprehensive functional pipes of adjacent prefabricated cabin frame modules are interconnected.

3. The energy storage system according to claim 2, characterized in that, The prefabricated cabin unit includes a DC prefabricated cabin and an AC prefabricated cabin. The DC prefabricated cabin is embedded in the support frame to form a DC frame module, and the AC prefabricated cabin is embedded in the support frame to form an AC frame module. The multiple prefabricated cabin frame modules include one AC frame module and at least one DC frame module stacked on the AC frame module. The DC prefabricated cabin and the AC prefabricated cabin are electrically connected through corresponding cables in the cable conduit.

4. The energy storage system according to claim 2, characterized in that, The sensing component includes a plurality of sensors connected to corresponding cables in the cable conduit, and the plurality of sensors include at least one or more combinations of temperature sensors, gas sensors, fire sensors, and smoke sensors.

5. The energy storage system according to claim 2, characterized in that, The flue gas exhaust assembly includes at least an exhaust branch pipe and a smoke extraction port that are both disposed on the top of the support frame, and a solenoid valve disposed on the exhaust branch pipe for controlling the on / off state of the exhaust branch pipe. The smoke extraction port is connected to the main exhaust pipe through the exhaust branch pipe.

6. The energy storage system according to claim 1, characterized in that, The energy storage system also includes a control module, which is communicatively connected to the safety protection unit of each prefabricated cabin frame module through cables in the cable conduit. The control module is used to receive and process the data collected by the sensing components and to determine whether there is a fire hazard in the prefabricated cabin unit.

7. The energy storage system according to claim 6, characterized in that, The energy storage system also includes an intelligent fire truck and multiple fire-fighting nodes adapted to the intelligent fire truck; the multiple fire-fighting nodes are arranged around the prefabricated cabin frame module at preset positions and are connected to pre-buried underground fire water pipes; the intelligent fire truck is communicatively connected to the control module and, in the event of a fire hazard in the prefabricated cabin unit, automatically connects to the fire-fighting nodes near the fire hazard to spray water to extinguish the fire in the prefabricated cabin unit with the fire hazard.

8. The energy storage system according to claim 7, characterized in that, The intelligent fire truck includes a communication unit, an autopilot unit, and an automatic telescopic sprinkler head; wherein... The communication unit is communicatively connected to the control module and is used to receive control commands output by the control module and output the control commands to the automatic driving unit and the automatic telescopic sprinkler head, so that the intelligent fire truck moves to the fire node near the fire hazard and connects to it; and so that the automatic telescopic sprinkler head extends longitudinally to a preset height near the fire hazard.

9. The energy storage system according to claim 6, characterized in that, The energy storage system also includes a flue gas purification module, which is connected to the main exhaust pipe of the prefabricated cabin frame module through a flue gas duct embedded in the ground, and provides negative pressure drive for the directional flow of flue gas along the main exhaust pipe.

10. The energy storage system according to claim 6, characterized in that, The support frame includes at least a support base plate and a support top plate, as well as a maintenance ladder connecting the support base plate and the support top plate. The prefabricated cabin unit is located on the support base plate and maintains a vertical distance from the support top plate. The maintenance ladders in adjacent prefabricated cabin frame modules are interconnected.

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