Energy storage battery security system and linkage control method

Abstract

The invention relates to an energy storage battery security and protection system and a linkage control method, and relates to the technical field of battery fire fighting and temperature control, and the energy storage battery security and protection system comprises an accommodation space, a battery management module, a storage module, a fire extinguishing, cooling and inerting module, an exhaust pressure relief module and a conveying module. An energy storage module is arranged in the accommodating space; the battery management module is arranged in the accommodating space and is used for monitoring various indexes in the accommodating space; a fire extinguishing agent is stored in the storage module, the storage module is connected with the fire extinguishing, cooling and inerting module through the conveying module, the conveying module is provided with a control valve, and the control valve is electrically connected with the battery management module. The whole-process management and control of the battery thermal runaway initial stage and the fire in the accommodating space are realized from the aspects of fire extinguishing, cooling, combustible gas inerting and diluting and the like.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery fire protection temperature control, and in particular to an energy storage battery security system and a linkage control method. Background Art

[0002] The most critical issue hindering the large-scale promotion and application of lithium batteries is the safety of rechargeable lithium ions. When the temperature inside the battery cell reaches a certain level, the SEI diaphragm (Solid Electrolyte Interphase) will decompose, inducing severe exothermic reactions and electrolyte vaporization; when the temperature and pressure inside the battery cell exceed the critical value, the battery cell explosion-proof membrane will rupture and spray jets of fire (ternary lithium) or electrolyte vapor (lithium iron phosphate), followed by a major thermal runaway fire. Traditional new energy fire fighting techniques are mostly to extinguish fires by spraying fire extinguishing agents through the alarm detection system and the fire extinguishing system linked to related electronic control equipment after the thermal runaway of the battery cell occurs, but they do not have the ability to cool down the thermal runaway object; and new energy fires have the characteristics of latent endogenous drive, deep fire characteristics, long-term latency, easy to reignite, and out of control. If intervention is not carried out in the early stage of thermal runaway of the battery cell, the consequences are often disastrous.

[0003] Therefore, how to carry out full-process cooling and inerting fire extinguishing in the early stage of thermal runaway of battery cells and during the occurrence of fire has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0004] In order to solve the above technical problems, the present disclosure provides an energy storage battery security system and a linkage control method, which are used to cool down the battery cell in the early stage of thermal runaway, and to extinguish and cool down the fire caused by thermal runaway of the battery cell.

[0005] In a first aspect, the present disclosure provides an energy storage battery security system, including: a storage space, a conveying module, a battery management module, a storage module, a fire extinguishing cooling inerting module, and an exhaust pressure relief module; the storage space includes a plurality of energy storage modules;

[0006] The battery management module is located in each of the accommodating spaces, and is used to monitor one or more of the combustible gas concentration, ambient pressure, and battery temperature, voltage, current, and other indicators in the accommodating space; the storage module is located outside the accommodating space, and the storage module stores a fire extinguishing agent; the fire extinguishing cooling and inerting module is located in the accommodating space, and the storage module is connected to the fire extinguishing cooling and inerting module through a conveying module;

[0007] The battery management module is electrically connected to a control valve of the delivery module, and the control valve is used to control the opening or closing of the delivery module according to a control signal sent by the battery management module;

[0008] The battery management module is also electrically connected to the storage module to control the opening or closing of the module;

[0009] The exhaust pressure relief module is located above the side wall of one side of the accommodating space and is communicated with the accommodating space; the exhaust pressure relief module is used to exhaust and relieve the combustible gas in the accommodating space.

[0010] Optionally, the fire extinguishing cooling inerting module includes a first fire extinguishing cooling inerting module and / or a second fire extinguishing cooling inerting module, the first fire extinguishing cooling inerting module is located in the energy storage module, and the second fire extinguishing cooling inerting module is located in the accommodating space.

[0011] Optionally, the conveying module includes a first conveying module and / or a second conveying module, and the fire extinguishing, cooling and inerting module is connected to the storage module via the conveying module.

[0012] Optionally, the first delivery module is a circulation pipeline or a non-circulation pipeline, and the second delivery module is a non-circulation pipeline.

[0013] Optionally, the control valve includes a first control valve and / or a second control valve, the first control valve is located in the first delivery module, the first control valve is electrically connected to the battery management module, and the second control valve is located in the second delivery module, and the second control valve is electrically connected to the battery management module.

[0014] Optionally, the fire extinguishing agent includes one or more of CO2, N2, Ar, and H2O.

[0015] Optionally, the storage module is connected to the accommodating space in any one of a series connection, a parallel connection, or a series-parallel connection.

[0016] In a second aspect, based on the same inventive concept, the present disclosure provides a method for controlling a linkage system of an energy storage battery security system, which is applied to the energy storage battery security system of the first aspect, and the method comprises:

[0017] The battery management module monitors various indicators in the accommodation space, and determines the relationship between the monitored indicator value and a first threshold value and a second threshold value preset by the battery management module, wherein the first threshold value is less than the second threshold value;

[0018] When the index value is less than or equal to the first threshold, the storage module, the fire extinguishing cooling inerting module, and the control valve are not opened;

[0019] When the index value is greater than the first threshold and less than or equal to the second threshold, the battery management module sends a first control signal, the storage module, the first fire extinguishing cooling inerting module, and the first control valve are opened, and the fire extinguishing agent in the storage module enters the accommodation space along the first conveying module to cool the energy storage module in the accommodation space, and the fire extinguishing agent in the accommodation space is circulated to the storage module through the recovery component and the recovery pipeline, or the accommodation space is opened to be directly discharged into the atmosphere;

[0020] When the index value is greater than the second threshold, the battery management module sends a second control signal, the storage module, the first fire extinguishing cooling inerting module, the first control valve are opened, the second fire extinguishing cooling inerting module, the second control valve are opened, and the fire extinguishing agent in the storage module is transported from the delivery module to the fire extinguishing cooling inerting module in the accommodating space.

[0021] Optionally, when the ambient pressure in the accommodating space is greater than a pressure threshold, the exhaust pressure relief module is turned on, and when the ambient pressure in the accommodating space is less than or equal to the pressure threshold, the exhaust pressure relief module is turned off.

[0022] Optionally, only when the storage module, the first fire extinguishing cooling and inerting module, and the first control valve are opened, the fire extinguishing agent in the fire extinguishing cooling and inerting module is one or more of solid, liquid, and gaseous;

[0023] When the storage module, the first fire extinguishing cooling inerting module, the first control valve are opened, the second fire extinguishing cooling inerting module, and the second control valve are opened, the fire extinguishing agent released by the first fire extinguishing cooling inerting module and the second fire extinguishing cooling inerting module is one or more of solid, liquid, and gaseous.

[0024] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0025] 1. By setting safety thresholds and real-time monitoring of the combustible gas concentration, ambient pressure, and battery temperature, voltage, current and other indicators in the containment space, the corresponding control signals are output in a timely manner to achieve full process control of the initial stage of thermal runaway and the fire period of the battery in the containment space from the aspects of cooling, fire extinguishing, inerting and diluting combustible gases.

[0026] 2. By using the original battery management module in the accommodation space as a monitoring and control module, the alarm detection equipment and related electronic control equipment in the existing fire protection plan can be replaced to reduce costs.

[0027] 3. Through the natural green and environmentally friendly fire extinguishing agent with cooling and inerting effect, fire extinguishing, cooling and inerting can be achieved without polluting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 A connection diagram of an energy storage battery security system provided by an embodiment of the present disclosure;

[0031] Figure 2 A schematic diagram of the connection between a storage module and a storage space in an energy storage battery security system provided by an embodiment of the present disclosure;

[0032] Figure 3 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure;

[0033] Figure 4 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure;

[0034] Figure 5 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure;

[0035] Figure 6 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure;

[0036] Figure 7 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure;

[0037] Figure 8 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure;

[0038] Fig. 9 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure;

[0039] Fig.10 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure;

[0040] Fig.11A schematic diagram of the connection between a storage module and an energy storage module provided in an embodiment of the present disclosure;

[0041] Fig.12 A schematic diagram of another connection between a storage module and an energy storage module provided in an embodiment of the present disclosure;

[0042] Fig.13 A step diagram of a method for controlling a linkage of an energy storage battery security system provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0043] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0045] Figure 1 This is a connection diagram of an energy storage battery security system according to an embodiment of the present disclosure. Please refer to Figure 1 The present disclosure provides an energy storage battery security system OO, comprising: a storage space D, a battery management module F, a storage module A, a fire extinguishing cooling inerting module C, and an exhaust pressure relief module G; the storage space D includes a plurality of energy storage modules E;

[0046] The battery management module F is located in the accommodating space D. The battery management module F is used to monitor one or more of the indicators such as the concentration of combustible gas, the ambient pressure, and the temperature, voltage, and current of the battery in the accommodating space D. The battery management module F is electrically connected to the display panel F0. The display panel F0 is used to display the real-time monitoring values ​​of various indicators. The battery management module F also pre-stores a first threshold R1 and a second threshold R2 of various indicators. The first threshold R1 is less than the second threshold R2. The battery management module F is also electrically connected to the control valve H, and is used to send a control signal F1 to control the opening and closing of the control valve H.

[0047] It should be noted that the "electrical connection" in the text may refer to a direct connection or an indirect connection. For example, the electrical connection between the battery pipeline module F and the control valve H specifically means that the battery management module F is electrically connected to the control valve H through the display panel F0, so that while sending the control signal F1, the user can directly observe the relative size relationship between the indicator monitoring value and the first threshold value R1 and the second threshold value R2 on the display panel F0.

[0048] The storage module A is located outside the accommodation space D, and the storage module A stores a fire extinguishing agent. The fire extinguishing cooling and inerting module C is located inside the accommodation space D, and the storage module A and the fire extinguishing cooling and inerting module C are connected via the conveying module B;

[0049] The battery management module F is electrically connected to the control valve H of the delivery module B, and the control valve H is used to control the opening or closing of the delivery module B according to the control signal F1 sent by the battery management module F;

[0050] The battery management module F is also electrically connected to the storage module A to control the opening or closing of the storage module A;

[0051] The exhaust pressure relief module G is located above the side wall of a certain side of each accommodating space D and is communicated with the accommodating space D; the exhaust pressure relief module G is used to exhaust and relieve the combustible gas in the accommodating space D.

[0052] Specifically, in an optional embodiment provided by the present disclosure, the energy storage battery security system OO includes a storage space D, which does not specifically refer to a certain type of container, but broadly includes a closed shell of the energy storage module E, or a fully open or partially open shell, or a production or process (stirring, coating, cold pressing and pre-slitting, tab die cutting and slitting, winding baking and liquid injection, cell activation, formation and capacity division, etc.) area, workshop, loading and unloading platform, test needle bed, warehouse, storage location, shelf, shed, test line, etc. The energy storage module E includes a battery, which can be a battery production area, or a battery use area, etc.

[0053] The accommodating space D may be closed, have holes, windows, or doors; it may also be open on one side, two sides, three sides, four sides, five sides, or only the frame is fully open.

[0054] In an optional embodiment provided by the present disclosure, the energy storage battery security system OO includes a battery management module F, which is used to monitor various parameter changes in the storage space D, such as temperature, concentration of combustible gases such as carbon monoxide and hydrogen, environmental pressure, voltage, current, etc. The battery management module F can also compare the monitored parameter index with the first threshold R1 or the second threshold R2 preset by the battery management module F, and control the opening or closing of the storage module A, the control valve H, etc. according to the comparison result, so as to realize the fire extinguishing, cooling and inerting control of the storage space D. That is to say, according to the relationship between the collected data and the preset threshold, it can be judged whether the storage space D is in the early stage of thermal runaway or a fire. The subsequent embodiments will specifically explain the judgment method.

[0055] It should be noted that the battery management module F is specifically embodied as a module integrated with a temperature sensor, a pressure sensor, a combustible gas sensor, a current sensor, etc. The battery management module F also includes a memory and a comparator corresponding to each sensor, the memory stores a first threshold R1 and a second threshold R2 corresponding to each parameter, and the comparator is used to compare the collected parameters with the first threshold R1 and the second threshold R2 stored in the storage unit. Both the memory and the comparator can adopt the structure in the prior art.

[0056] In an optional embodiment provided in the present disclosure, the energy storage battery security system OO includes a storage module A, which can independently provide a sufficient amount of fire extinguishing agent storage. The fire extinguishing agent storage capacity of the storage module A can meet the fire fighting needs of several storage spaces D, dozens of storage spaces D, hundreds of storage spaces D or thousands of storage spaces D.

[0057] Figure 2 A schematic diagram of the connection between a storage module and a storage space in an energy storage battery security system provided by an embodiment of the present disclosure. Figure 3 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure, Figure 4 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure is provided. Figure 5 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure is provided. Figure 6 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure is provided. Figure 7 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure is provided. Figure 8 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure is provided. Fig. 9 A schematic diagram of the connection between a storage module and a storage space in another energy storage battery security system provided by an embodiment of the present disclosure is provided. Fig.10 A schematic diagram of the connection between the storage module and the accommodation space in another energy storage battery security system provided in the embodiment of the present disclosure is provided in conjunction with Figures 2 to 10 The storage module A can be arranged near the center position of the arrangement of the storage spaces D, or near the center position of a row of a plurality of storage spaces D, or near the center position of a column of a plurality of storage spaces D, or near the corner where a row or a column of a plurality of storage spaces D intersect... and so on. They are not listed here one by one and can be set according to actual conditions.

[0058] Please refer to Figures 7 to 10For large-scale energy storage stations including dozens, hundreds or thousands of storage spaces D, the site area of ​​the energy storage station is relatively large, and the storage module A includes a storage tank A1. The storage tank A1 can be arranged at multiple points. For example, a storage tank A1 with a storage capacity of 20 tons can be divided into two 10-ton storage tanks A1 for two-point arrangement, or divided into four 5-ton storage tanks A1 for four-point arrangement, or divided into two 5-ton storage tanks A1 and one 10-ton storage tank A1 for three-point arrangement... The specific examples are not listed one by one. The volume and arrangement of the storage tank A1 can be designed to meet the fire protection requirements according to the actual site layout of the storage space D.

[0059] Please continue to refer to Figures 1 to 10 In an optional embodiment provided by the present disclosure, the energy storage battery security system OO includes a fire extinguishing cooling inerting module C. When the battery management module F detects that the dangerous parameter value in the accommodating space D is between the preset first threshold value R1 and the second threshold value R2, the battery management module F controls the control valve H of the fire extinguishing cooling inerting module C, the storage module A, and the conveying module B to open, and the fire extinguishing agent in the storage module A flows through the conveying module B to the fire extinguishing cooling inerting module C inside the accommodating space D, and accurately cools the thermal runaway object inside the energy storage module E in the accommodating space D. The fire extinguishing agent can be circulated to the storage module A through the recovery component and the recovery pipeline, so as to realize the integrated cycle of cooling and recycling of the fire extinguishing agent; the conveying module B can also be a non-circulating pipeline, that is, the fire extinguishing agent transported to the accommodating space D does not circulate to the storage module A through the recovery component and the recovery pipeline, but is discharged into the atmosphere through the exhaust pressure relief module G.

[0060] It should be noted that, in some embodiments, the energy storage battery security system OO may further include a mobile component. The mobile component is movably disposed in the accommodation space D. The fire extinguishing cooling inerting module C is connected to the mobile component. Thus, the fire extinguishing cooling inerting module C can be moved with the mobile component, so that it can be moved to a designated location according to the needs of the fire protection system, which is conducive to improving the accuracy of fire extinguishing.

[0061] Exemplarily, the moving assembly may include a guide rail, a moving member and a drive motor. The moving member is slidably connected to the guide rail. The drive motor drives the moving member to slide on the guide rail, and the fire extinguishing cooling inerting module C may be connected to the moving member. Thus, when the moving member moves, the fire extinguishing cooling inerting module C may be driven to move.

[0062] When the battery management module F detects that the dangerous parameter value in the storage space D exceeds the second threshold value R2, the battery management module F controls the control valve H of the storage module A and the delivery module B to open, and the fire extinguishing agent in the storage module A is transported to the fire extinguishing cooling and inerting module C through the delivery pipeline B, and then sprayed into the storage space D by the fire extinguishing cooling and inerting module C. The fire extinguishing agent after endothermic vaporization dilutes and inerts the combustible gas in the storage space D, thereby playing a role in curbing the explosion of the combustible gas.

[0063] Please continue to refer to Figures 1 to 10 In an optional embodiment provided by the present disclosure, the energy storage battery security system OO includes an exhaust pressure relief module G, which is located above the side wall of a certain side of each accommodating space D. The exhaust pressure relief module G includes at least one exhaust pressure relief device, which is mechanically opened or closed after the ambient pressure reaches the pressure threshold, thereby reducing the pressure in the accommodating space D at the moment when the fire extinguishing agent is sprayed, and inerting the concentration of combustible gas in the energy storage module E.

[0064] Thus, the present disclosure provides an energy storage battery security system OO including a storage space D, a battery management module F, a storage module A, a fire extinguishing cooling and inerting module C, and an exhaust pressure relief module G. The battery management module F can be used to monitor the fault conditions of the battery pack: abnormal voltage and current, temperature increase and other functions to judge the precursors of thermal runaway, and the battery management module F is used as a control module to control the opening and closing of various modules, and accurately cool the thermal runaway object in the early stage of thermal runaway. In the event of a thermal runaway fire, the storage space D can be promptly extinguished, cooled and inerted to prevent the battery from reigniting and suppress the spread of the fire. An early plan can be provided for curbing the explosion of combustible gases, and sufficient time can be gained for the arrival of firefighting professionals. The present solution omits detection equipment such as smoke sensors, temperature sensors, harmful gas sensors, and combustible gas sensors in new energy firefighting, which greatly reduces the cost of firefighting while solving the safety problem of lithium-ion batteries.

[0065] Please continue to refer to Figures 1 to 10 In an optional embodiment provided in the present disclosure, the accommodating space D includes multiple energy storage modules E, the fire extinguishing cooling inerting module C includes a first fire extinguishing cooling inerting module C1 and / or a second fire extinguishing cooling inerting module C2, and the first fire extinguishing cooling inerting module C1 is located in each energy storage module E; the second fire extinguishing cooling inerting module C2 is located in the accommodating space D and outside the energy storage module E.

[0066] In an optional embodiment provided in the present disclosure, the accommodating space D includes multiple energy storage modules E, the fire extinguishing cooling inerting module C only includes a first fire extinguishing cooling inerting module C1, and the first fire extinguishing cooling inerting module C1 is located in each energy storage module E; in another optional embodiment provided in the present disclosure, the accommodating space D includes multiple energy storage modules E, the fire extinguishing cooling inerting module C includes a first fire extinguishing cooling inerting module C1 and a second fire extinguishing cooling inerting module C2, the first fire extinguishing cooling inerting module C1 is located in each energy storage module E, and the second fire extinguishing cooling inerting module C2 is located in the accommodating space D and outside the energy storage module E; in another optional embodiment provided in the present disclosure, the accommodating space D includes multiple energy storage modules E, the fire extinguishing cooling inerting module C only includes a second fire extinguishing cooling inerting module C2, and the second fire extinguishing cooling inerting module C2 is located in the accommodating space D and outside the energy storage module E.

[0067] Specifically, there are multiple energy storage modules E arranged in an array inside the storage space D. The fire extinguishing cooling inerting module C in the energy storage battery security system OO includes a first fire extinguishing cooling inerting module C1, which is located inside each independent energy storage module E and is used to cool down the battery in the energy storage module E through the fire extinguishing cooling inerting module C at the early stage of thermal runaway, and to extinguish the fire in the thermal runaway fire by absorbing heat and vaporizing the sprayed fire extinguishing agent to extinguish the fire and inertate the energy storage module E; the fire extinguishing cooling inerting module C includes a second fire extinguishing cooling inerting module C2, and the second fire extinguishing cooling inerting module C1 is located inside each independent energy storage module E. The cooling and inerting module C2 is located inside the accommodating space D and outside the energy storage module E. It is used to extinguish the fire and cool the entire accommodating space D by spraying fire extinguishing agent during the occurrence of a thermal runaway fire, and suppress the spread of fire through the endothermic gasification of the fire extinguishing agent. In this way, through the linkage of the first fire extinguishing cooling and inerting module C1 and the second fire extinguishing cooling and inerting module C2, it is possible to achieve cooling intervention in the early stage of thermal runaway and extinguish the fire and cool it down during the entire process of the thermal runaway fire. By setting different fire extinguishing cooling and inerting modules C, it is possible to distinguish between the energy storage module E and the non-energy storage module E space, and to accurately cool the thermal runaway parts in a targeted manner.

[0068] In an optional embodiment provided in the present disclosure, the conveying module B includes a first conveying module B1 and / or a second conveying module B2, and the fire extinguishing cooling inerting module C is connected to the storage module A through the conveying module B; in an optional embodiment provided in the present disclosure, the conveying module B only includes the first conveying module B1, and the first fire extinguishing cooling inerting module C1 is connected to the storage module A through the first conveying module B1; in another optional embodiment provided in the present disclosure, the conveying module B includes the first conveying module B1 and the second conveying module B2, the first fire extinguishing cooling inerting module C1 is connected to the storage module A through the first conveying module B1, and the second fire extinguishing cooling inerting module C2 is connected to the storage module A through the second conveying module B2; in yet another optional embodiment provided in the present disclosure, the conveying module B only includes the second conveying module B2, and the second fire extinguishing cooling inerting module C2 is connected to the storage module A through the second conveying module B2.

[0069] Specifically, the delivery pipeline B in the energy storage battery security system OO may include a first delivery module B1, which is connected to the first fire extinguishing cooling and inerting module C1 and the storage module A, that is, the first delivery module B1 is used to deliver the fire extinguishing agent to the energy storage module E in the accommodating space D; the delivery pipeline B may include a second delivery module B2, which is connected to the second fire extinguishing cooling and inerting module C2 and the storage module A, that is, the second delivery module B2 is used to deliver the fire extinguishing agent to the accommodating space D. In this way, through two independently arranged delivery modules B, it is possible to achieve precise cooling of the thermal runaway battery in the energy storage module E, and during the occurrence of a thermal runaway fire, through the coordination of the two delivery modules B, the amount of fire extinguishing agent sprayed can be increased, thereby achieving double fire extinguishing cooling and inerting inside and outside the energy storage module E and improving the fire extinguishing efficiency.

[0070] Please continue to refer to Figures 1 to 10 In an optional embodiment provided in the present disclosure, the first delivery module B1 is configured as a circulation pipeline or a non-circulation pipeline, and the second delivery module B2 is a non-circulation pipeline.

[0071] Specifically, the first delivery module B1 is connected to the first fire extinguishing cooling inerting module C1 and the storage module A. The first delivery module B1 is a closed or open circulation pipeline. The first delivery pipeline B1 is used to deliver the fire extinguishing agent in the storage module A to the first fire extinguishing cooling inerting module C1 in the energy storage module E at the early stage of thermal runaway. The first fire extinguishing cooling inerting module C1 realizes cooling of the thermal runaway battery by heat conduction and other means. When the early warning of thermal runaway is released, the fire extinguishing agent returns to the storage module A via the open or closed circulation loop of the first delivery module B1 to form a cycle. In an optional embodiment provided by the present disclosure, when the first delivery module B1 is a closed circulation pipeline, the fire extinguishing agent in the storage module A is delivered to the multiple energy storage modules E in the accommodation space D through the first delivery module B1. At this time, the fire extinguishing agent only exists in the first delivery module B1, and the fire extinguishing agent delivered to the multiple energy storage modules E is returned to the storage module A via the closed circulation pipeline of the first delivery module B1. In another optional embodiment provided by the present disclosure, when the first delivery module B1 is an open circulation pipeline, the fire extinguishing agent in the storage module A is transported to the multiple energy storage modules E in the accommodating space D through the first delivery module B1, and the fire extinguishing agent is sprayed into each energy storage module E through the first fire extinguishing cooling inerting module C1 in each energy storage module E. The fire extinguishing agent sprayed into each energy storage module E returns to the storage module A through the recovery component and the recovery pipeline, which is an open circulation pipeline.

[0072] In some embodiments, when the first delivery module B1 is an open circulation pipeline, the first delivery module B1 may include an internal delivery pipeline and a recovery pipeline. One end of the internal delivery pipeline is connected to the storage module A. One end of the recovery pipeline is also connected to the storage module A. Thus, the fire extinguishing agent in the storage module A can enter the internal delivery pipeline. The fire extinguishing agent in the recovery pipeline can flow back to the storage module A.

[0073] The delivery module B may further include a recovery device. The recovery device may drive the fire extinguishing agent to flow back into the storage module A. This is beneficial to improving the ability of the system to recover the fire extinguishing agent.

[0074] In some embodiments, the first fire extinguishing cooling inerting module C1 may include an internal spraying component and a recovery component. The internal spraying component and the recovery component are both arranged in the accommodating space D and are both located inside the energy storage module E. The internal spraying component is connected to the other end of the internal conveying channel, so that the fire extinguishing agent stored in the storage module A can flow to the internal spraying component through the internal conveying channel, so that the fire extinguishing agent can be sprayed inside the energy storage module E through the internal spraying component, which is used to extinguish the fire inside the energy storage module E.

[0075] The recovery part is connected to the other end of the recovery pipe. Specifically, since the interior of the energy storage module E is a closed space, when the fire extinguishing agent is cooled or extinguished, it can be changed from solid, liquid or gaseous fire extinguishing agent to gaseous or gas-liquid fire extinguishing agent. The fire extinguishing agent after absorbing heat passes through the recovery part and can flow back to the storage module A through the recovery pipe under the drive of the recovery device, so that the fire extinguishing agent can be recovered, which is conducive to reducing the waste of the fire extinguishing agent and thus helping to reduce costs.

[0076] In some embodiments, the first fire extinguishing cooling and inerting module C1 may be located at the periphery of the energy storage module E. Thus, the recovery component can directly recover the fire extinguishing agent sprayed by the energy storage module E and avoid entering the interior of the energy storage module E, which is beneficial to improving the applicability of the system.

[0077] The first fire extinguishing cooling inerting module C1 and the recycling component can be provided on the periphery and inside of the energy storage module E. Thus, the fire fighting capability of the energy storage battery security system OO can be improved to realize the effective recycling of the fire extinguishing agent.

[0078] It should be noted that the circulation pipeline refers to that a plurality of energy storage modules E in a single accommodation space D are connected in series through the first delivery module B1. Assuming that the accommodation space D includes only two energy storage modules E, the fire extinguishing agent in the storage module A is delivered to the first energy storage module E through the first delivery module B1, and then delivered from the first energy storage module E to the second energy storage module E through the first delivery module B1. The fire extinguishing agent in the second energy storage module E is closed-circulated to the storage module A through the first delivery module B1, thereby realizing the effective circulation of the fire extinguishing agent. Alternatively, the fire extinguishing agent in the storage module A is delivered to the first energy storage module E through the first delivery module B1. After being delivered to the first energy storage module E, a portion of the fire extinguishing agent is sprayed into the first energy storage module E through the first fire extinguishing cooling and inerting module C1 in the first energy storage module E, and the other portion of the fire extinguishing agent is transported from the first energy storage module E to the second energy storage module E through the first conveying module B1, and sprayed into the second energy storage module E through the first fire extinguishing cooling and inerting module C1 in the second energy storage module E. The fire extinguishing agent sprayed into the energy storage module E can be recycled and circulated to the next accommodating space D through the recycling component and the recycling pipeline... until it is recycled and circulated into the storage module A, thereby realizing an integrated cycle of cooling and recycling of the fire extinguishing agent.

[0079] In an optional embodiment provided by the present disclosure, a plurality of accommodating spaces D are connected in parallel, and a plurality of energy storage modules E in a single accommodating space D are connected in parallel through a first delivery module B1. Assuming that the accommodating space D includes only two energy storage modules E, the fire extinguishing agent in the storage module A is simultaneously delivered to the plurality of accommodating spaces D through the first delivery module B1, and the fire extinguishing agent delivered to the plurality of accommodating spaces D is simultaneously delivered to the two energy storage modules E in each accommodating space D through the first delivery module B1. The fire extinguishing agent in each accommodating space D is simultaneously delivered to the two energy storage modules E in the closed circulation pipeline formed by the first delivery module B1. or, the fire extinguishing agent in the storage module A is simultaneously transported to multiple accommodating spaces D through the first transport module B1, and the fire extinguishing agent transported to multiple accommodating spaces D is simultaneously transported to the energy storage modules E in each accommodating space D through the first transport module B1, and the fire extinguishing agent is simultaneously sprayed into each energy storage module E through the first fire extinguishing cooling inerting module C1 in each energy storage module E, and the fire extinguishing agent sprayed into each energy storage module E can be recovered into the storage module A through the recovery component and the recovery pipeline in an open cycle at the same time, so as to realize the integrated cycle of cooling and recovery of the fire extinguishing agent.

[0080] In an optional embodiment provided by the present disclosure, each accommodating space D is connected in series through the first delivery module B1, and each energy storage module E in a single accommodating space D is connected in parallel through the first delivery module B1. Assuming that the accommodating space D includes 3 energy storage modules E, the fire extinguishing agent in the storage module A is simultaneously delivered to the three energy storage modules E in the first accommodating space D through the first delivery module B1, and the fire extinguishing agent delivered to the first accommodating space D is then simultaneously delivered to the three energy storage modules E in the second accommodating space D through the closed circulation pipeline formed by the first delivery module B1... and so on, the fire extinguishing agent is finally recovered from the last accommodating space D to the storage module A through the closed circulation of the first delivery module B1; or, each accommodating space D is connected in series through the first delivery module B1, and each energy storage module E in a single accommodating space D is connected in parallel through the first delivery module B1. B1 is connected in parallel. Assuming that the accommodating space D includes 3 energy storage modules E, the fire extinguishing agent in the storage module A is simultaneously transported to the three energy storage modules E in the first accommodating space D through the first transport module B1, and the fire extinguishing agent transported to the first accommodating space D is simultaneously sprayed into the respective energy storage modules E through the respective first fire extinguishing cooling inerting modules C1, and the fire extinguishing agent sprayed into the three energy storage modules E is simultaneously recovered through the recovery component and the recovery pipeline, and then transported to the next accommodating space D, and simultaneously sprayed in the three energy storage modules E in the next accommodating space D, and then simultaneously recovered through the recovery component and the recovery pipeline, and transported to the next accommodating space D… and so on, until the fire extinguishing agent is recovered from the last accommodating space D to the storage module A through the open cycle of the recovery component and the recovery pipeline, thereby realizing the integrated cycle of cooling and recovery of the fire extinguishing agent.

[0081] It can be understood that the above is only an example and does not represent the actual number of energy storage modules E in the accommodating space D. For example, the number of energy storage modules E in a single accommodating space D can be 3, 4, 5... They are not listed here one by one. The specific details shall prevail. It is only necessary to clarify that the first conveying modules B1 between the energy storage modules E are connected in one or more ways of series connection, parallel connection, or series-parallel connection.

[0082] The first delivery module B1 is also used to transport the fire extinguishing agent in the storage module A to the first fire extinguishing cooling and inerting module C1 in the energy storage module E during the period of thermal runaway fire. When the thermal runaway fire occurs, the first fire extinguishing cooling and inerting module C1 sprays the fire extinguishing agent, which absorbs heat and vaporizes and diffuses into the interior of the energy storage module E to achieve fire extinguishing, cooling and inerting of the energy storage module E.

[0083] The second delivery module B2 is connected to the second fire extinguishing cooling and inerting module C2 and the storage module A. The second delivery module B2 is a non-circulating pipeline. The second delivery module B2 is used to transport the fire extinguishing agent in the energy storage module to the second fire extinguishing cooling and inerting module C2 inside the accommodating space D and outside the energy storage module E during the occurrence of a thermal runaway fire. The second fire extinguishing cooling and inerting module C2 sprays the fire extinguishing agent, which absorbs heat and vaporizes and diffuses into the accommodating space D to achieve fire extinguishing cooling and inerting of the accommodating space D as a whole.

[0084] In this way, the fire extinguishing agent used to cool the energy storage module E in the early stage of thermal runaway can be recycled to the storage module A after completing the cooling task through the circulation loop of the first delivery module B1, so as to realize the recycling of the fire extinguishing agent and reduce the temperature control cost; through the synergistic effect of the first delivery module B1 and the second delivery module B2, the energy storage module E is cooled and inerted by the coordinated fire extinguishing inside and outside, thereby improving the fire extinguishing efficiency and reducing the concentration of combustible gas.

[0085] Please continue to refer to Figures 1 to 10 In an optional embodiment provided in the present disclosure, the control valve H includes a first control valve H1 and / or a second control valve H2, the first control valve H1 and the second control valve H2 are electrically connected to the battery management module F respectively, the first control valve H1 is located in the first delivery module B1, the first control valve H1 is electrically connected to the battery management module F, the second control valve H2 is located in the second delivery module B2, and the second control valve H2 is electrically connected to the battery management module F.

[0086] Specifically, the delivery pipeline B includes a control valve H, and the control valve H includes a first control valve H1 and / or a second control valve H2. The first control valve H1 is located in the first delivery module B1, and the first control valve H1 is used to receive the first control signal F11 and the second control signal F12 of the battery management module F to control the opening and closing of the first delivery pipeline B1. The second control valve H2 is located in the second delivery module B2, and the second control valve H2 is used to receive the second control signal F12 of the battery management module F to control the opening and closing of the second delivery module B2. In an optional embodiment provided by the present disclosure, the battery management module F monitors the concentration of combustible gas in the accommodation space D, the ambient pressure, and the temperature, current, voltage and other indicators of the battery, and when it is determined that the accommodation space D is in the early stage of thermal runaway, the battery management module F sends a first control signal F11, the first control valve H1 receives the first control signal F11 and opens, the first delivery module B1 opens, and the fire extinguishing agent in the storage module A is transported to the first fire extinguishing cooling inertization module C1 via the first delivery module B1, and the thermal runaway part in the energy storage module E is accurately cooled.

[0087] In another optional embodiment provided by the present disclosure, the battery management module F monitors the combustible gas concentration, ambient pressure, and various indicators such as battery temperature, current, and voltage in the accommodating space D, and determines that if it exceeds the second threshold R2, the battery management module F sends a second control signal F12, the first control valve H1 and the second control valve H2 receive the second control signal F12 and open, the first delivery module B1 opens, the second delivery module B2 opens, the fire extinguishing agent in the storage module A is transported to the first fire extinguishing, cooling and inerting module C1 in the energy storage module E via the first delivery module B1, and the fire extinguishing agent in the storage module A is transported to the second fire extinguishing, cooling and inerting module C2 in the accommodating space D via the second delivery module B2, and the first fire extinguishing, cooling and inerting module C1 and the second fire extinguishing, cooling and inerting module C2 simultaneously spray fire extinguishing agent to extinguish, cool and inertize the accommodating space D as a whole.

[0088] In this way, by setting different control valves H on different conveying modules B, the conveying module B can be opened flexibly and specifically according to the thermal runaway state of the accommodating space D, thereby achieving effective control of the thermal runaway process.

[0089] In an optional embodiment provided by the present disclosure, the fire extinguishing agent includes one or more of CO2, N2, Ar, and H2O.

[0090] Specifically, the fire extinguishing agent in the energy storage module includes one or more of CO2, N2, Ar, and H2O. CO2, N2, Ar, and H2O are substances existing in the environment, which are natural, green, and environmentally friendly. Such fire extinguishing agents can not only cool down and prevent re-ignition, but also inertify the combustible gas in a thermal runaway fire. During the occurrence of a thermal runaway fire, after the fire extinguishing agent is sprayed and absorbs heat and vaporizes, due to its non-toxic and harmless characteristics, after the inerting or fire extinguishing stage is completed, the containing space D can be directly opened to release the sprayed fire extinguishing agent directly into the atmosphere or recycle it for utilization. In this way, by setting the composition of the fire extinguishing agent to one or more of CO2, N2, Ar, and H2O, the fire extinguishing agent can be made green, environmentally friendly, and pollution-free, and the combustible gas can be diluted and inerted to curb its explosion.

[0091] It should be noted that the fire extinguishing agent can be one or more of liquid, solid, and gaseous. The present disclosure does not limit the form of the fire extinguishing agent, and the specific form can be set according to actual needs.

[0092] Fig.11 A schematic diagram of a connection between a storage module and an energy storage module provided in an embodiment of the present disclosure is provided. Fig.12 Another schematic diagram of the connection between the storage module and the energy storage module provided in the embodiment of the present disclosure is shown in FIG. Figures 1 to 12 In an optional embodiment provided in the present disclosure, the storage module A is connected to the accommodating space D in any one of a series connection, a parallel connection, or a series-parallel connection.

[0093] Specifically, the fire extinguishing cooling inerting module C between the storage module A and the accommodating space D can be connected in series, in parallel, or in various combinations of series and parallel; further, the fire extinguishing cooling inerting module C between the storage module A and the energy storage module E in the accommodating space D can be connected in series, in parallel, or in various combinations of series and parallel. Please refer to Figure 8 The storage module A and the first fire extinguishing cooling inertization module C1 in the accommodation space D are connected in series through the delivery module B. The fire extinguishing agent can flow from the series delivery module B to the first fire extinguishing cooling inertization module C1 in each energy storage module E; when the early warning of thermal runaway is lifted, the fire extinguishing agent is recovered to the storage module A through the series delivery module B. Please refer to Fig. 9 The storage module A is connected to the first fire extinguishing cooling inerting module C1 in the accommodating space D through the parallel delivery module B. The fire extinguishing agent is delivered to the first fire extinguishing cooling inerting module C1 in the specific energy storage module E through the parallel delivery module B. When the initial warning of thermal runaway is lifted, the fire extinguishing agent is recovered from the specific energy storage module E through the parallel delivery module B to the storage module A.

[0094] Fig.13 This is a step diagram of a method for controlling the linkage of an energy storage battery security system provided by the embodiment of the present disclosure. Figures 1 to 13In the second aspect, the present disclosure provides a linkage control method for an energy storage battery security system, which is applied to the energy storage battery security system OO as described above, and the method includes: the battery management module F monitors various indicators in the accommodating space D, and determines the relationship between the monitored indicator value and the preset first threshold value R1 and the second threshold value R2, and the first threshold value R1 is less than the second threshold value R2; when the indicator value is less than or equal to the first threshold value R1, the storage module A, the fire extinguishing cooling inerting module C, and the control valve H are not opened.

[0095] When the index value is greater than the first threshold value R1 and less than or equal to the second threshold value R2, the battery management module F sends a first control signal F11, the storage module A, the first fire extinguishing cooling inerting module C1, and the first control valve H1 are opened, and the fire extinguishing agent in the storage module A enters the energy storage module E along the first conveying module B1 to cool the energy storage module E. The fire extinguishing agent in the energy storage module E then circulates to the storage module A along the first conveying module B1, or circulates to the storage module A through the recovery component and the recovery pipeline.

[0096] When the index value is greater than the second threshold value R2, the battery module sends a second control signal F12, the storage module A, the first fire extinguishing cooling inerting module C1, the first control valve H1 are opened, the second fire extinguishing cooling inerting module C2, the second control valve H2 are opened, and the fire extinguishing agent in the storage module A is sprayed from the first delivery module B1 to the energy storage module E, and the fire extinguishing agent in the storage module A is sprayed from the second delivery module B2 to the accommodating space D.

[0097] Specifically, in an optional embodiment provided by the present disclosure, the battery management module F in the fire protection system of the accommodation space D monitors the concentration of combustible gas, ambient pressure, and temperature, voltage, current and other indicators of the battery in the accommodation space D, and determines whether the accommodation space D is in a thermal runaway state by comparing the detected indicator value with a preset first threshold value R1 or a second threshold value R2; the first threshold value R1 is less than the second threshold value R2, for example, the first threshold value R1 is a green safety value, and the second threshold value R2 is a red alarm value.

[0098] In an optional embodiment provided in the present disclosure, when the battery management module F monitors that all indicator values ​​are below the first threshold value R1, it indicates that the battery in the storage space D is in good operating condition, the battery management module F does not send a control signal F1, and the storage module A, the fire extinguishing cooling inerting module C, and the control valve H do not operate.

[0099] In an optional embodiment provided by the present disclosure, when the battery management module F monitors that at least one index value is between the first threshold R1 and the second threshold R2, and any index value is not greater than R2, the battery management module F determines that the battery in the accommodation space D is in the early stage of thermal runaway, and the battery management module F sends a first control signal F11, and only the first control valve H1, the storage module A, and the first fire extinguishing cooling inertization module C1 are opened, and the fire extinguishing agent in the storage module A cools the energy storage module E through the first delivery module B1. When all the index values ​​monitored by the battery management module F drop below the first threshold R1, the battery management module F stops sending the first control signal F11, and the fire extinguishing agent circulates to the storage module A through the first delivery module B1 or the recovery component and the recovery pipeline. In this way, it can play an early warning role in the thermal runaway of the battery in the energy storage module E and curb it in the early stage of development.

[0100] In an optional embodiment provided by the present disclosure, when the battery management module F monitors that at least any indicator value is between the first threshold R1 and the second threshold R2, and the indicator value monitored by the battery management module F gradually increases but is below the second threshold R2, the battery management module F controls to increase the supply of fire extinguishing agent in the first fire extinguishing cooling inerting module C1 to achieve the purpose of large-flow cooling.

[0101] In an optional embodiment provided by the present disclosure, when at least one indicator value monitored by the battery management module F continues to rise to be greater than the second threshold value R2, the battery management module F determines that the battery in the accommodating space D is in a thermal runaway fire occurrence period, and the battery management module F sends a second control signal F12, the storage module A, the first fire extinguishing cooling inerting module C1, the first control valve H1 are opened, the second fire extinguishing cooling inerting module C2, and the second control valve H2 are opened, and the fire extinguishing agent in the storage module A is transported into the first fire extinguishing cooling inerting module C1 and the second fire extinguishing cooling inerting module C2 through the first conveying module B1 and the second conveying module B2, and is sprayed simultaneously inside and outside the energy storage module E of the accommodating space D, and the concentration of the gaseous fire extinguishing agent in the accommodating space D is increased to above the minimum fire extinguishing concentration standard within a specified time, filling and flooding the entire space in the accommodating space D, and maintaining this concentration for several minutes, tens of minutes or hours, thereby preventing fire, extinguishing fire, soft gas isolation, preventing fire spread and preventing re-ignition for the accommodating space D and the energy storage module E therein. At the same time, the supply of fire extinguishing agent to the first fire extinguishing cooling inerting module C1 is increased, which significantly reduces the abnormal value inside the thermal runaway object (energy storage module E), and plays a role in fire prevention, fire extinguishing, cooling, isolation, fire spread prevention and re-ignition protection for the energy storage module E. At the same time, it delays and prevents the fire of the energy storage module E from spreading in the storage space D, and delays and prevents the fire from spreading to other surrounding storage spaces D, providing comprehensive and extensive fire protection for the storage space D, buying ample time for the arrival of fire professionals, and creating good conditions for fire professionals to finally handle the fire in the storage space D according to the established plan. After the staff determines that the fire has been extinguished and there is no risk of re-ignition, due to the characteristics of the fire extinguishing agent's gasification and heat absorption at room temperature, the door can be opened for ventilation to resume production.

[0102] In an optional embodiment provided in the present disclosure, when the pressure in the accommodating space D is greater than a pressure threshold, the exhaust pressure relief module G is turned on, and when the pressure in the accommodating space D is less than or equal to the pressure threshold, the exhaust pressure relief module G is turned off.

[0103] Specifically, the exhaust and pressure relief module G includes at least one pressure relief device, which can be mechanically opened to relieve exhaust and pressure in the accommodating space D, and can also be closed, or can be opened and closed in a reciprocating cycle.

[0104] When the battery management module F monitors that the concentration of combustible gas in the storage space D exceeds the second threshold value R2, the fire extinguishing agent is sprayed into the storage space D through the above-mentioned work flow of spraying the fire extinguishing agent, thereby diluting and replacing the combustible gas in the storage space D to reduce it to a safe concentration. At this time, the fire extinguishing agent sprayed into the storage space D is vaporized into a gaseous state due to heat absorption, thereby increasing the internal pressure of the storage space D. When the internal pressure value of the storage space D exceeds the pressure threshold, the exhaust pressure relief module G is turned on to release the overpressure gas. When the gas in the storage space D is discharged to the internal pressure value equal to the pressure threshold, the exhaust pressure relief module G is turned off. In this way, the exhaust pressure relief module G is turned on and off according to the internal pressure of the storage space D, so as to achieve a dynamic balance of the environmental pressure in the storage space D and avoid safety hazards caused by excessive internal pressure.

[0105] In an optional embodiment provided in the present disclosure, only when the storage module A, the first fire extinguishing cooling inerting module C1, and the first control valve H1 are opened, the fire extinguishing agent in the first fire extinguishing cooling inerting module C1 is one or more of solid, liquid or gaseous states; when the storage module A, the first fire extinguishing cooling inerting module C1, the first control valve H1 are opened, the second fire extinguishing cooling inerting module C2, and the second control valve H2 are opened, the fire extinguishing agent released by the first fire extinguishing cooling inerting module C1 and the second fire extinguishing cooling inerting module C2 is one or more of solid, liquid or gaseous states.

[0106] Specifically, when the battery management module F determines that the accommodating space D is in the early stage of thermal runaway, the battery management module F sends a first control signal F11, and only the storage module A, the first fire extinguishing cooling inerting module C1, and the first control valve H1 are opened. The fire extinguishing agent in the storage module A is transported to the first fire extinguishing cooling inerting module C1 via the first delivery module B1 to cool down the thermal runaway object in the energy storage module E. The first delivery module B1 is a circulation loop, and the fire extinguishing agent in the energy storage module E cools down the thermal runaway object through heat conduction.

[0107] When the battery management module F determines that the accommodating space D is in the period of thermal runaway fire, the battery management module F sends a second control signal F12, the storage module A, the first fire extinguishing cooling inerting module C1, the first control valve H1 are opened, the second fire extinguishing cooling inerting module C2, and the second control valve H2 are opened, and the fire extinguishing agent in the storage module A is transported to the first fire extinguishing cooling inerting module C1 through the first delivery pipeline B1, and the fire extinguishing agent in the storage module A is transported to the second fire extinguishing cooling inerting module C2 through the second delivery pipeline B2. The fire extinguishing agent sprayed by the first fire extinguishing cooling inerting module C1 and the second fire extinguishing cooling inerting module C2 is one or more of solid, liquid or gaseous. The fire extinguishing agent vaporizes and absorbs heat. It can also cool down while extinguishing the fire, inerting the combustible gas, and realizing the three-in-one effect of fire extinguishing, cooling and inerting.

[0108] In summary, the present disclosure provides an energy storage battery security system and linkage control method, which uses the original battery management module of the energy storage container as a control unit to link the transportation module, storage module, and fire extinguishing cooling and inerting module to curb the development process and spread of thermal runaway; by setting a safety threshold and real-time monitoring of the combustible gas concentration, environmental pressure, and battery temperature, voltage, current and other indicators of the energy storage container, and outputting corresponding control signals to achieve cooling and fire extinguishing cooling and inerting of the thermal runaway object; by replacing the alarm detection equipment and related electronic control equipment with the battery management module, the early warning of battery thermal runaway can be achieved, and the thermal runaway risk can be reduced. Low detection cost; by using natural green and environmentally friendly fire extinguishing agents (CO2, N2, Ar, H2O, etc.) with fire extinguishing cooling and inerting functions to replace traditional new energy fire extinguishing agents, while starting the fire extinguishing, the thermal runaway object can be continuously cooled for tens of minutes or hours to prevent re-ignition and thermal runaway spread; the endothermic gaseous fire extinguishing agent can also continuously dilute the combustible gas generated by thermal runaway and reduce the concentration of combustible gas; this solution can be applied to large-scale energy storage stations, and can also provide a variety of layout designs to achieve full process control of the initial stage of thermal runaway and fire in the energy storage station from the aspects of cooling, fire extinguishing, inerting and diluting combustible gases.

[0109] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A storage battery security system, characterized in that: include: Accommodation space, conveying module, battery management module, storage module, fire extinguishing cooling inerting module, exhaust pressure relief module; The accommodating space includes a plurality of energy storage modules; The battery management module is located in each of the accommodating spaces, and is used to monitor the concentration of combustible gas, the ambient pressure, and one or more of the temperature, voltage, and current indicators of the battery in the accommodating space; The storage module is located outside the accommodation space, the storage module stores a fire extinguishing agent, the fire extinguishing cooling and inerting module is located inside the accommodation space, and the storage module is connected to the fire extinguishing cooling and inerting module via a conveying module; The battery management module is electrically connected to a control valve of the delivery module, and the control valve is used to control the opening or closing of the delivery module according to a control signal sent by the battery management module; The battery management module is also electrically connected to the storage module to control the opening or closing of the module; The exhaust pressure relief module is located above the side wall of one side of the accommodating space and is communicated with the accommodating space; the exhaust pressure relief module is used to exhaust and relieve the combustible gas in the accommodating space.

2. The energy storage battery security system according to claim 1, characterized in that: The fire extinguishing cooling inerting module comprises a first fire extinguishing cooling inerting module and / or a second fire extinguishing cooling inerting module; The first fire extinguishing, cooling and inerting module is located in the energy storage module, and the second fire extinguishing, cooling and inerting module is located in the accommodating space.

3. The energy storage battery security system according to claim 2, characterized in that: The conveying module includes a first conveying module and / or a second conveying module; The fire extinguishing, cooling and inerting module is connected to the storage module via the conveying module.

4. The energy storage battery security system according to claim 3, characterized in that: The first delivery module is a circulation pipeline or a non-circulation pipeline, and the second delivery module is a non-circulation pipeline.

5. The energy storage battery security system according to claim 3, characterized in that: The control valve includes a first control valve and / or a second control valve, the first control valve is located in the first delivery module, the first control valve is electrically connected to the battery management module, and the second control valve is located in the second delivery module, the second control valve is electrically connected to the battery management module.

6. The energy storage battery security system according to claim 1, characterized in that: The fire extinguishing agent includes one or more of CO2, N2, Ar, and H2O.

7. The energy storage battery security system according to claim 1, characterized in that: The storage module is connected to the accommodation space in any one of a series connection, a parallel connection, or a series-parallel connection.

8. A method for controlling a linkage of an energy storage battery security system, characterized in that: Applied in the energy storage battery security system according to any one of claims 1 to 7, the method comprises: The battery management module monitors various indicators in the accommodation space, and determines the relationship between the monitored indicator value and a first threshold value and a second threshold value preset by the battery management module, wherein the first threshold value is less than the second threshold value; When the index value is less than or equal to the first threshold, the storage module, the fire extinguishing cooling inerting module, and the control valve are not opened; When the index value is greater than the first threshold and less than or equal to the second threshold, the battery management module sends a first control signal, the storage module, the first fire extinguishing cooling and inerting module, and the first control valve are opened, and the fire extinguishing agent in the storage module enters the accommodation space along the first conveying module to cool and inertize the energy storage module in the accommodation space, and the fire extinguishing agent in the accommodation space is circulated to the storage module through the recovery component and the recovery pipeline, or the accommodation space is opened to be directly discharged into the atmosphere; When the index value is greater than the second threshold, the battery management module sends a second control signal, the storage module, the first fire extinguishing cooling inerting module, the first control valve are opened, the second fire extinguishing cooling inerting module, the second control valve are opened, and the fire extinguishing agent in the storage module is transported from the delivery module to the fire extinguishing cooling inerting module in the accommodating space.

9. The energy storage battery security system linkage control method according to claim 8, characterized in that: When the ambient pressure in the accommodation space is greater than a pressure threshold, the exhaust pressure relief module is turned on; when the ambient pressure in the accommodation space is less than or equal to the pressure threshold, the exhaust pressure relief module is turned off.

10. The energy storage battery security system linkage control method according to claim 8, characterized in that: Only when the storage module, the first fire extinguishing cooling and inerting module, and the first control valve are opened, the fire extinguishing agent in the fire extinguishing cooling and inerting module is one or more of solid, liquid, and gaseous; When the storage module, the first fire extinguishing cooling inerting module, the first control valve are opened, the second fire extinguishing cooling inerting module, and the second control valve are opened, the fire extinguishing agent released by the first fire extinguishing cooling inerting module and the second fire extinguishing cooling inerting module is one or more of solid, liquid, and gaseous.

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