Energy storage system with fire fighting equipment and fire fighting method thereof

Abstract

The embodiment of the invention provides an energy storage system with fire-fighting equipment and a fire-fighting method thereof, and the system comprises a box body which comprises a battery cabin and an equipment cabin; the plurality of battery units are arranged in the battery compartment; the fire detection alarm assembly comprises a monitoring unit and a control unit which are electrically connected. The fire extinguishing assembly is electrically connected to the control unit and comprises an alarm unit, an exhaust unit, a fire extinguishing unit and a water injection pipe. The battery compartment is communicated with the outside through the exhaust unit; an air outlet of the fire extinguishing unit is communicated with the battery unit; a water outlet of the water injection pipe communicates with the battery compartment; the control unit responds to the first fire alarm signal to start at least one of the alarm unit and the exhaust unit; the control unit responds to the second fire alarm signal to start the fire extinguishing unit; and the control unit responds to the third fire alarm signal to make the water injection pipe in a conducting state. And proper fire-fighting measures are selected according to different levels of fire alarm signals of the monitoring unit.

Description

Technical Field

[0001] The present disclosure relates to the field of energy storage technology, and in particular to an energy storage system with fire-fighting equipment and a fire-fighting method thereof. Background Art

[0002] The energy storage container mainly consists of two parts, the electrical compartment and the battery compartment, and there are different accessories in these two parts, such as containerized machine rooms, battery packs, battery management systems, energy storage converters, and thermal management systems. The electrical compartment mainly contains distribution cabinets and inverters, etc., in order to better control the circuit, while the battery compartment mainly contains battery packs. Whether it is the user side, the power supply side, or the grid side, safety is always the first requirement for energy storage.

[0003] There are three common energy storage container fire protection systems on the market. One is a full flooding design that uses a gas fire extinguishing system to extinguish fires. The second is a gas fire extinguishing system + sprinkler method, because water is needed to cool down the open flame of the lithium battery in the energy storage container after it is quickly extinguished by the gas.

[0004] However, the existing fire protection system cannot carry out reasonable fire protection according to different fire situations. For example, if there are some low-level fires in the energy storage equipment (such as high temperature or flammable gas inside), the above-mentioned fire protection plan will be implemented; or if there are high-level fires (such as open flames inside), only some fire protection plans with poor effects can be implemented. As a result, the existing fire protection system for energy storage equipment handles the fire in an unreasonable way. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present disclosure is to provide an energy storage system with fire-fighting equipment and a fire-fighting method thereof, so as to solve the problems in the related art.

[0006] The first aspect of the present disclosure provides an energy storage system with fire-fighting equipment, comprising:

[0007] Box body, including battery compartment and equipment compartment;

[0008] A plurality of battery units are arranged in the battery compartment;

[0009] A fire detection alarm assembly, comprising an electrically connected monitoring unit and a control unit; the monitoring unit comprises a combustible gas sensor, a temperature sensor and a composite sensor; the combustible gas sensor and the temperature sensor are arranged in the battery compartment; the composite sensor is arranged in the battery unit;

[0010] A fire extinguishing assembly, electrically connected to the control unit, comprising an alarm unit, an exhaust unit, a fire extinguishing unit and a water injection pipe; the exhaust unit allows the battery compartment to be connected to the outside world; the air outlet of the fire extinguishing unit is connected to the battery unit; the water outlet of the water injection pipe is connected to the battery compartment;

[0011] Among them, the control unit activates at least one of the alarm unit and the exhaust unit in response to the first fire alarm signal issued by the monitoring unit; the control unit activates the fire extinguishing unit in response to the second fire alarm signal issued by the monitoring unit; and the control unit puts the water injection pipe in a conducting state in response to the third fire alarm signal issued by the monitoring unit.

[0012] In an embodiment of the first aspect, the first fire alarm signal is an alarm signal sent by one of the combustible gas sensor, temperature sensor and composite sensor in any one of the monitoring units; wherein, if one of the temperature sensor and the composite sensor sends an alarm signal, the control unit starts the alarm unit; if the combustible gas sensor sends an alarm signal at a first predetermined value, the control unit starts the alarm unit and the exhaust unit.

[0013] In an embodiment of the first aspect, the second fire alarm signal is an alarm signal issued by two of the combustible gas sensor, temperature sensor and composite sensor in the same monitoring unit; wherein the combustible gas sensor issues a secondary alarm signal at a second predetermined value; and the second fire alarm signal links the exhaust unit to be shut down.

[0014] In an embodiment of the first aspect, the third fire alarm signal is an alarm signal issued after a temperature sensor in any of the monitoring units meets a specified condition.

[0015] In an embodiment of the first aspect, the designated condition is that the second fire alarm signal has been issued and / or the temperature sensor is in a designated state.

[0016] In an embodiment of the first aspect, the control unit includes an exhaust controller, a gas fire extinguishing controller and a water injection fire extinguishing controller; the gas fire extinguishing controller is electrically connected to the exhaust controller, the water injection fire extinguishing controller, the alarm unit, the fire extinguishing unit, the combustible gas sensor, the temperature sensor and the composite sensor, respectively.

[0017] In an embodiment of the first aspect, each of the battery units includes a battery box, and a battery cell arranged in the battery box; the composite sensor is arranged in the battery box; the exhaust unit includes an exhaust part and an air inlet part; the exhaust part and the air inlet part are respectively arranged in the battery compartment; the fire extinguishing unit includes a fire extinguishing main pipe and multiple fire extinguishing branch pipes; one end of the multiple fire extinguishing branch pipes is connected to the fire extinguishing main pipe, and the other end forms the air outlet and is respectively connected to the multiple battery boxes.

[0018] In an embodiment of the first aspect, the fire extinguishing unit includes a fire extinguishing main pipe, multiple fire extinguishing branch pipes and multiple partition valves; one end of the multiple fire extinguishing branch pipes is connected to the fire extinguishing main pipe, and the other end forms the gas outlet and is respectively connected to the multiple battery units; each of the fire extinguishing branch pipes is provided with a partition valve; the gas fire extinguishing controller is electrically connected to the multiple partition valves.

[0019] In an embodiment of the first aspect, the water injection pipe is connected to the top of the battery compartment; the water injection pipe is provided with an on-off valve electrically connected to the water injection fire extinguishing controller.

[0020] A second aspect of the present disclosure provides a firefighting method, which is applied to the energy storage system with firefighting equipment, comprising the following steps:

[0021] S1: When one of the sensors in any of the monitoring units sends an alarm signal, it sends a first fire alarm signal to the control unit;

[0022] S2: The control unit judges the first fire alarm signal; if the temperature sensor or the composite sensor alarms, the alarm unit is controlled to start; if the combustible gas sensor alarms at the first predetermined value, the alarm unit and the exhaust unit are controlled to start;

[0023] S3: When two sensors in the same monitoring unit send an alarm signal, they send a second fire alarm signal to the control unit;

[0024] S4: the control unit judges the two alarm signals in the second fire alarm signal; if one of the two alarm signals is an alarm signal sent by the combustible gas sensor at the second predetermined value, the fire extinguishing unit is controlled to start; if not, the fire extinguishing unit is not started;

[0025] S5: the fire extinguishing assembly sends a fire extinguishing unit spraying signal to the control unit after the fire extinguishing unit is started;

[0026] S6: When the temperature sensor in any of the monitoring units sends an alarm signal under the premise of meeting the specified conditions, a third fire alarm signal is sent to the control unit;

[0027] S7: The control unit determines whether a spraying signal from a fire extinguishing unit is received, and upon receipt of the spraying signal from the fire extinguishing unit, responds to the third fire alarm signal to place the on-off valve in an on state.

[0028] As described above, an energy storage system with fire-fighting equipment and a fire-fighting method thereof are provided in an embodiment of the present disclosure, including a housing, a plurality of battery cells, a fire detection alarm component and a fire-fighting component. The housing includes a battery compartment and an equipment compartment; the plurality of battery cells are arranged in the battery compartment; the fire detection alarm component includes an electrically connected monitoring unit and a control unit; the monitoring unit includes a combustible gas sensor, a temperature sensor and a composite sensor; the gas sensor and the temperature sensor are arranged in the battery compartment; the composite sensor is arranged in the battery cell; the fire-fighting component is electrically connected to the control unit, including an alarm unit, an exhaust unit, a fire-fighting unit and a water injection pipe; the exhaust unit connects the battery compartment to the outside world; the air outlet of the fire-fighting unit is connected to the battery cell; the water outlet of the water injection pipe is connected to the in the battery compartment; wherein the control unit activates at least one of the alarm unit and the exhaust unit in response to a first fire alarm signal indicating that one of the combustible gas sensor, temperature sensor and composite sensor in any of the monitoring units sends an alarm signal; the control unit activates the fire extinguishing unit in response to a second fire alarm signal indicating that two of the combustible gas sensor, temperature sensor and composite sensor in the same monitoring unit send an alarm signal; the control unit puts the water injection pipe in a conducting state in response to a third fire alarm signal indicating that the temperature sensor in any of the monitoring units sends an alarm signal after meeting a specified condition. The control unit in the present application can select a suitable fire extinguishing unit in the fire extinguishing assembly to extinguish and cool the energy storage device according to the different levels of fire alarm signals sent by the monitoring unit, so as to achieve reasonable fire protection treatment of the energy storage device. Thereby, on the premise of ensuring that the fire protection system causes minimal damage to the energy storage device, the energy storage device is extinguished and cooled to reduce equipment damage and personal injury caused by fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shown in the figure is a schematic diagram of the overall structure of the energy storage system with fire-fighting equipment in an embodiment of the present disclosure.

[0030] Figure 2 , which is a cross-sectional schematic diagram of the overall structure of the energy storage system with fire-fighting equipment according to an embodiment of the present disclosure;

[0031] Figure 3 The figure shows a circuit structure schematic diagram of an embodiment of the present disclosure;

[0032] Figure 4 , which is a schematic diagram of the structure of the battery unit and the gas fire extinguishing unit in the embodiment of the present disclosure;

[0033] Figure 5 FIG. 1 is an operation flow chart of a fire fighting method in another embodiment of the present disclosure;

[0034] Figure 6 ] is a schematic diagram of the structure of a computer device in one embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] The following is an explanation of the embodiments of the present disclosure by specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the information disclosed by the present disclosure. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in the present disclosure can also be modified or changed in various ways according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0036] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0037] In the representations of the present disclosure, the reference terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials or characteristics represented may be combined in any one or a group of embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples represented in the present disclosure and the features of different embodiments or examples, unless they are mutually contradictory.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the representation of the present disclosure, "a group" means two or more, unless otherwise clearly and specifically defined.

[0039] In order to clearly describe the present disclosure, components not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.

[0040] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0041] Although the terms first, second, etc. are used to represent various elements in this article in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, the first interface and the second interface, etc. are represented. Moreover, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising" and "including" indicate that there are the described features, steps, operations, elements, modules, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or a group of other features, steps, operations, elements, modules, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, will there be an exception to this definition.

[0042] The technical terms used herein are only used to refer to specific embodiments and are not intended to limit the present disclosure. The singular form used herein also includes the plural form unless the sentence clearly indicates the contrary meaning. The meaning of "including" used in the specification is to specify specific characteristics, regions, integers, steps, operations, elements and / or components, and does not exclude the existence or addition of other characteristics, regions, integers, steps, operations, elements and / or components.

[0043] Although not defined differently, all terms, including technical and scientific terms used herein, have the same meaning as those generally understood by those skilled in the art to which the present disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the current prompt message, and unless defined, shall not be overly interpreted as ideal or very formal meanings.

[0044] The energy storage container mainly consists of two parts, the electrical compartment and the battery compartment, and there are different accessories in these two parts, such as containerized machine rooms, battery packs, battery management systems, energy storage converters, and thermal management systems. The electrical compartment mainly contains distribution cabinets and inverters, etc., in order to better control the circuit, while the battery compartment mainly contains battery packs. Whether it is the user side, the power supply side, or the grid side, safety is always the first requirement for energy storage.

[0045] There are three common energy storage container fire protection systems on the market. One is a full flooding design that uses a gas fire extinguishing system to extinguish fires. The second is a gas fire extinguishing system + sprinkler method, because water is needed to cool down the open flame of the lithium battery in the energy storage container after it is quickly extinguished by the gas.

[0046] However, the existing fire protection system cannot carry out reasonable fire protection according to different fire situations. For example, if there are some low-level fires in the energy storage equipment (such as high temperature or flammable gas inside), the above-mentioned fire protection plan will be implemented; or if there are high-level fires (such as open flames inside), only some fire protection plans with poor effects can be implemented. As a result, the existing fire protection system for energy storage equipment handles the fire in an unreasonable way.

[0047] Based on the above problems, the disclosed embodiment provides an energy storage system with fire-fighting equipment, wherein the control unit can select a suitable fire-fighting unit in the fire-fighting assembly to extinguish and cool the energy storage equipment according to the fire alarm signals of different levels issued by the monitoring unit, so as to achieve reasonable fire-fighting treatment of the energy storage equipment. Thus, the energy storage equipment can be extinguished and cooled while ensuring that the fire-fighting system causes minimal damage to the energy storage equipment, thereby reducing equipment damage and personal injury caused by fire.

[0048] Figure 1 Shown in the figure is a schematic diagram of the overall structure of the energy storage system with fire-fighting equipment in an embodiment of the present disclosure. Figure 2 ] is a cross-sectional schematic diagram of the overall structure of the energy storage system with fire-fighting equipment according to an embodiment of the present disclosure. Figure 3 The circuit structure diagram of the embodiment of the present disclosure is shown in FIG. Figure 1 , Figure 2 and Figure 3 In the example, the energy storage system with fire-fighting equipment includes a box 10 , a plurality of battery cells 20 , a fire detection alarm component 30 and a fire extinguishing component 40 .

[0049] Exemplarily, the box body 10 includes a battery compartment 101 and a device compartment 102 formed by separation. Further exemplarily, the battery compartment 101 and the device compartment 102 are formed by left and right separation of the space inside the box body 10, so as to facilitate construction workers to assemble the energy storage device.

[0050] Exemplarily, the multiple battery cells 20 are arranged in the battery compartment 101, and each of the battery cells 20 includes a battery box 21 and a battery cell (not shown in the figure) arranged in the battery box 21. Further exemplarily, the multiple battery cells 20 are arranged in the battery compartment 101 at intervals along the up and down directions, and each of the battery cells 20 corresponds to a protection area in the battery compartment 101. The advantage of such a setting is that while improving the heat dissipation effect between the multiple battery cells 20, the multiple battery cells can also be independent individuals surrounded by the battery box 21, reducing the influence between the multiple battery cells.

[0051] Exemplarily, the fire detection alarm component 30 includes a monitoring unit 31 and a control unit 32 which are electrically connected. The fire extinguishing component 40 is electrically connected to the control unit 32, and includes an alarm unit 41, an exhaust unit 42, a fire extinguishing unit 43 and a water injection pipe 44. The exhaust unit 42 allows the battery compartment 101 to communicate with the outside world; the air outlet of the fire extinguishing unit 43 is connected to the battery unit 20; and the water outlet of the water injection pipe 44 is connected to the battery compartment 101.

[0052] Exemplarily, the control unit 32 includes an exhaust controller 321, a gas fire extinguishing controller 322 and a water injection fire extinguishing controller 323; the gas fire extinguishing controller 322 is electrically connected to the exhaust controller 321, the water injection fire extinguishing controller 323, the alarm unit 41 and the fire extinguishing unit 43 respectively.

[0053] Among them, the control unit 32 activates at least one of the alarm unit 41 and the exhaust unit 42 in response to the first fire alarm signal issued by the monitoring unit 31; the control unit 32 activates the fire extinguishing unit 43 in response to the second fire alarm signal issued by the monitoring unit 31; the control unit 32 puts the water injection pipe 44 in a conducting state in response to the third fire alarm signal issued by the monitoring unit 31.

[0054] The control unit 32 in the present application can select appropriate fire extinguishing measures in the fire extinguishing component 40 to extinguish and cool the energy storage device according to the different levels of fire alarm signals issued by the monitoring unit 31, so as to achieve reasonable fire fighting treatment of the energy storage device. Thus, the energy storage device can be extinguished and cooled while ensuring that the fire fighting system causes minimal damage to the energy storage device, thereby reducing equipment damage and personal injury caused by fire.

[0055] Exemplarily, the monitoring unit 31 includes a combustible gas sensor 311, a temperature sensor 312 and a composite sensor 313; the combustible gas sensor 311 and the temperature sensor 312 are arranged in the battery compartment 101; the composite sensor 313 is arranged in the battery unit 20. The control unit 32 includes an exhaust controller 321, a gas fire extinguishing controller 322 and a water injection fire extinguishing controller 323; the gas fire extinguishing controller 322 is electrically connected to the exhaust controller 321, the water injection fire extinguishing controller 323, the alarm unit 41, the fire extinguishing unit 43, the combustible gas sensor 311, the temperature sensor 312 and the composite sensor 313. Exemplarily, the composite sensor 313 is implemented as a carbon monoxide and temperature sensor.

[0056] In some embodiments, the monitoring unit 31 may include at least one of an in-station sound and light alarm, a gas release alarm (which may also be an indicator light), and an alarm bell installed in the box 10. Optionally, the monitoring unit 31 may also include an out-station sound and light alarm, a gas release alarm, and the like located outside the box 10 for alarm prompts. The detection unit may be controlled to alarm by the control unit 32, or may have some manual alarm buttons for users to manually alarm.

[0057] In some embodiments, the monitoring unit 31 includes a composite sensor 313 for detecting the temperature of the combustible gas engine, which is arranged corresponding to each of the battery cells 20. As an example, the composite sensor 313 can be arranged on each of the battery cells 20, for example, on the surface of the battery cell 20.

[0058] Exemplarily, the combustible gas sensor 311 and the temperature sensor 312 are implemented as a warehouse-level monitoring component. The warehouse-level monitoring component can be distributed in the battery warehouse or the battery warehouse and the battery warehouse, and can be set on the top. Exemplarily, the warehouse-level detection component is implemented as multiple groups. One group is set in one side area of ​​the top of the battery warehouse. One group is set at the top of the other side area. A combustible gas sensor 312 is set at the top between the two side areas, and the combustible gas sensor 312 can be a composite gas sensor for detecting hydrogen (H2) and carbon monoxide (CO). Optionally, a group of warehouse-level detection components can also be set on the top of the electrical warehouse to detect a fire spreading to the electrical warehouse.

[0059] Exemplarily, the first fire alarm signal is an alarm signal sent by one of the combustible gas sensor 311, the temperature sensor 312 and the composite sensor 313 in any of the monitoring units 31. If one of the temperature sensor 312 and the composite sensor 313 sends an alarm signal, the control unit 32 starts the alarm unit 41; if the combustible gas sensor 311 sends an alarm signal at a first predetermined value, the control unit 32 starts the alarm unit 41 and the exhaust unit 42.

[0060] exist Figure 1 In the example, the alarm unit 41 is implemented as an audible and visual alarm. The exhaust unit 42 includes an exhaust piece 421 and an air inlet piece 422; the exhaust piece 421 and the air inlet piece 422 are respectively arranged on the side walls of the box body 10 and are connected to the battery compartment. Exemplarily, the exhaust piece 421 is implemented as an explosion-proof axial flow fan, and the air inlet piece 422 is implemented as an electric shutter. It can be understood by those skilled in the art that when the exhaust unit 42 is in operation, the outside wind enters the battery compartment through the air inlet piece 422, and the exhaust piece 421 sucks the combustible gas in the battery compartment and the gas entering the battery compartment from the outside to the outside, thereby reducing the concentration of the combustible gas in the battery compartment and improving the safety factor of the energy storage device.

[0061] Further illustratively, the exhaust member 421 and the air inlet member 422 are arranged on two parallel side walls of the box body 10. The advantage of such an arrangement is that the exhaust member 421 and the air inlet member 422 arranged in pairs can speed up the flow of gas in the battery compartment, thereby speeding up the speed at which the concentration of combustible gas in the battery compartment decreases, further improving the safety factor of the energy storage device. Optionally, the exhaust member 421 and the air inlet member 422 may also have a manual switch, allowing the user to manually start and stop the fan.

[0062] Exemplarily, the second fire alarm signal is an alarm signal sent by two of the fuel gas sensor, the temperature sensor 312 and the composite sensor 313 in the same monitoring unit 31; wherein, the combustible gas sensor 311 sends a secondary alarm signal at a second predetermined value; and the second fire alarm signal links the exhaust unit 42 to shut down.

[0063] Exemplarily, the first predetermined value is a first concentration value of the combustible gas in the battery compartment; the second predetermined value is a second concentration value of the combustible gas in the battery compartment; exemplary, the combustible gas is hydrogen or carbon monoxide.

[0064] Figure 4 FIG. 4 is a schematic diagram showing the structure of the battery unit 20 and the gas fire extinguishing unit 43 in the embodiment of the present disclosure. Figure 4In the example, the fire extinguishing unit 43 includes a fire extinguishing main pipe 431, multiple fire extinguishing branch pipes 432 and multiple partition valves (not shown in the figure); one end of the multiple fire extinguishing branch pipes 432 is connected to the fire extinguishing main pipe 431, and the other end forms the gas outlet and is respectively connected to the multiple battery cells 20; each of the fire extinguishing branch pipes 432 is provided with a partition valve; the gas fire extinguishing controller 322 is electrically connected to the multiple partition valves. The advantage of the above setting is that the gas fire extinguishing controller 322 can control the conduction of the partition valve on the battery cell 20 corresponding to the monitoring unit 31 that sends the second fire alarm signal, so as to accurately spray the fire extinguishing agent through the fire extinguishing main pipe 431 and the fire extinguishing branch pipe 432 into the abnormal battery box 21 to implement fire extinguishing and cooling. The other battery boxes 21 will not be affected.

[0065] Exemplarily, the fire extinguishing agent is implemented as perfluorohexanone. Compared with heptafluoropropane, perfluorohexanone has higher insulation strength, and after extinguishing the open fire, perfluorohexanone can be intermittently sprayed to maintain local and full submersion concentrations, which is beneficial to suppress battery thermal runaway and achieve continuous suppression of re-ignition. Perfluorohexanone is a liquid at room temperature and can be safely transported and stored at normal pressure using ordinary containers, which can meet the performance requirements of the regulations for separately configuring a fire extinguishing medium nozzle for each battery cell 20. Perfluorohexanone has an ODP (ozone depletion potential) of zero, a low GWP, and an atmospheric residence time of 5 days. It is an excellent green and environmentally friendly refrigerant and is expected to replace other traditional fire extinguishing media such as heptafluoropropane.

[0066] Exemplarily, after the fire extinguishing unit 43 is activated, it will start spraying the fire extinguishing agent after the delay trigger 30S countdown ends, so as to extinguish the fire and cool down the battery unit 20 corresponding to the monitoring unit 31 that issued the second fire alarm signal. Further exemplarily, the control unit 32 also includes an emergency stop button 324 electrically connected to the gas fire extinguishing controller 322. Before the delay trigger countdown of the fire extinguishing unit 43 ends, the staff can press the emergency stop button 324 to stop the operation of the fire extinguishing unit 43 according to the actual situation.

[0067] Exemplarily, the third fire alarm signal is an alarm signal issued after the temperature sensor 312 in any of the monitoring units 31 meets the specified conditions. Exemplarily, the water injection pipe 44 is connected to the top of the battery compartment 101; the water injection pipe 44 is provided with an on-off valve 441 electrically connected to the water injection fire extinguishing controller 323. Further exemplarily, the on-off valve 441 can be automatically controlled to open and close, or manually controlled to open and close. The advantage of this setting is that the staff can manually control the opening and closing of the on-off valve 441 according to actual conditions, thereby improving the applicability of the fire protection system. Exemplarily, the other end of the water injection pipe 44 is connected to a water supply part (not shown in the figure). The water supply part is implemented as a water tank or a fire hydrant.

[0068] Exemplarily, the specified condition is that the second fire alarm signal has been issued and the temperature sensor 312 has reached a specified state. For example, the temperature sensor 312 issues the third fire alarm signal when the measured temperature exceeds 80°C and lasts for more than 10 minutes or the measured temperature exceeds 130°C and lasts for more than 3 minutes.

[0069] In another embodiment, two parallel on-off valves are provided on the water injection pipe; one of them is implemented as an automatic valve electrically connected to the water injection controller, and the other is implemented as a manual valve. In this way, the energy storage device can automatically inject water to extinguish the fire, and the staff can also manually open the manual valve to manually inject water to extinguish the fire after discovering and judging the danger.

[0070] Figure 5 The flowchart of the fire fighting method in another embodiment of the present disclosure is shown in FIG. Figure 5 In the example, another embodiment of the present disclosure provides a fire fighting method, which is applied to the energy storage system with fire fighting equipment, comprising the following steps:

[0071] S1: When one of the sensors in any of the monitoring units sends an alarm signal, it sends a first fire alarm signal to the control unit;

[0072] S2: The control unit judges the first fire alarm signal; if the temperature sensor or the composite sensor alarms, the alarm unit is controlled to start; if the combustible gas sensor alarms at the first predetermined value, the alarm unit and the exhaust unit are controlled to start;

[0073] S3: When two sensors in the same monitoring unit send an alarm signal, they send a second fire alarm signal to the control unit;

[0074] S4: the control unit judges the two alarm signals in the second fire alarm signal; if one of the two alarm signals is an alarm signal sent by the combustible gas sensor at the second predetermined value, the fire extinguishing unit is controlled to start; if not, the fire extinguishing unit is not started;

[0075] S5: the fire extinguishing assembly sends a fire extinguishing unit spraying signal to the control unit after the fire extinguishing unit is started;

[0076] S6: When the temperature sensor in any of the monitoring units sends an alarm signal under the premise of meeting the specified conditions, a third fire alarm signal is sent to the control unit;

[0077] S7: The control unit determines whether a spraying signal from a fire extinguishing unit is received, and upon receipt of the spraying signal from the fire extinguishing unit, responds to the third fire alarm signal to place the on-off valve in an on state.

[0078] Exemplarily, the second fire alarm signal may also be directly issued when the first fire alarm signal has not been issued; the third fire alarm signal may also be directly issued when the first fire alarm signal and the second fire alarm signal have not been issued. In other words, there is no direct connection between the first fire alarm signal, the second fire alarm signal and the third fire alarm signal, that is, the second fire alarm signal does not need to be issued after the first fire alarm signal is issued; the third fire alarm signal does not need to be issued after the second fire alarm signal and the first fire alarm signal are issued. That is, the control unit may have a fire fighting strategy, judge the severity of the fire according to the monitoring data of the monitoring unit, so as to make a corresponding alarm through the alarm unit, and may select to enable the exhaust unit, the fire extinguishing unit, and the water injection pipe in the fire extinguishing assembly according to the severity.

[0079] Figure 6 The diagram in FIG. 1 is a schematic diagram of the structure of a computer device in one embodiment of the present disclosure. Figure 6 In the example,

[0080] The computer device 120 includes a bus 1201, a processor 1202, and a memory 1203. The processor 1202 and the memory 1203 can communicate with each other through the bus 1201. The memory 1203 may store program instructions. The controller 21 described above may be implemented by the computer device 120 instead. The processor 1202 implements the above-mentioned embodiments by running the program instructions in the memory 1203. Figure 5 The steps of the control unit 32 in.

[0081] The bus 1201 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, although only one thick line is used in the figure, it does not mean that there is only one bus or one type of bus.

[0082] In some embodiments, the processor 1202 may be implemented as a central processing unit (CPU), a microprocessing unit (MCU), a system on chip (System On Chip), or a field programmable logic array (FPGA). The memory 1203 may include a volatile memory (Volatile Memory) for temporary storage of data when running a program, such as a random access memory (Random Access Memory, RAM).

[0083] The memory 1203 may also include a non-volatile memory (non-volatile memory) for data storage, such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD), or a solid-state disk (SSD).

[0084] In some embodiments, the computer device 120 may further include a communicator 1204. The communicator 1204 is used to communicate with the outside. In a specific example, the communicator 1204 may include one or a group of wired and / or wireless communication circuit modules. For example, the communicator 1204 may include one or more of a wired network card, a USB module, a serial interface module, etc. The wireless communication protocols followed by the wireless communication module include: for example, near field communication (NFC) technology, infrared (IR) technology, Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Time-Division Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), Bluetooth (BT), Global Navigation Satellite System (GNSS), etc. One or more.

[0085] In summary, the embodiments of the present disclosure provide an energy storage system with fire-fighting equipment and a fire-fighting method thereof, including a housing, a plurality of battery cells, a fire detection alarm component, and a fire-fighting component. The housing includes a battery compartment and an equipment compartment; a plurality of battery cells are arranged in the battery compartment; the fire detection alarm component includes an electrically connected monitoring unit and a control unit; each monitoring unit corresponds to a battery cell; the monitoring unit includes a combustible gas sensor, a temperature sensor, and a composite sensor; the gas sensor and the temperature sensor are arranged in the battery compartment; the composite sensor is arranged in the battery cell; the fire-fighting component is electrically connected to the control unit, and includes an alarm unit, an exhaust unit, a fire-fighting unit, and a water injection pipe; the exhaust unit connects the battery compartment to the outside world; the air outlet of the fire-fighting unit is connected to the battery cell; The water outlet of the water injection pipe is connected to the battery compartment; wherein the control unit starts at least one of the alarm unit and the exhaust unit in response to a first fire alarm signal indicating that one of the combustible gas sensor, temperature sensor and composite sensor in any of the monitoring units sends an alarm signal; the control unit starts the fire extinguishing unit in response to a second fire alarm signal indicating that two of the combustible gas sensor, temperature sensor and composite sensor in the same monitoring unit send an alarm signal; the control unit puts the water injection pipe in a conducting state in response to a third fire alarm signal indicating that the temperature sensor in any of the monitoring units sends an alarm signal after meeting a specified condition. The control unit in the present application can select a suitable fire extinguishing unit in the fire extinguishing assembly to extinguish and cool the energy storage device according to the different levels of fire alarm signals sent by the monitoring unit, so as to achieve reasonable fire protection treatment of the energy storage device. Thereby, on the premise of ensuring that the fire protection system causes minimal damage to the energy storage device, the energy storage device is extinguished and cooled to reduce equipment damage and personal injury caused by fire.

[0086] The above embodiments are merely illustrative of the principles and effects of the present disclosure, and are not intended to limit the present disclosure. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present disclosure. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present disclosure shall still be covered by the protection scope of the present disclosure.

Claims

1. An energy storage system with fire-fighting equipment, characterized in that: include: Box body, including battery compartment and equipment compartment; A plurality of battery units are arranged in the battery compartment; A fire detection alarm assembly, comprising an electrically connected monitoring unit and a control unit; the monitoring unit comprises a combustible gas sensor, a temperature sensor and a composite sensor; the combustible gas sensor and the temperature sensor are arranged in the battery compartment; the composite sensor is arranged in the battery unit; A fire extinguishing assembly, electrically connected to the control unit, comprising an alarm unit, an exhaust unit, a fire extinguishing unit and a water injection pipe; the exhaust unit allows the battery compartment to be connected to the outside world; the air outlet of the fire extinguishing unit is connected to the battery unit; the water outlet of the water injection pipe is connected to the battery compartment; In which, the control unit activates at least one of the alarm unit and the exhaust unit in response to a first fire alarm signal indicating that one of the combustible gas sensor, temperature sensor and composite sensor in any of the monitoring units sends an alarm signal; the control unit activates the fire extinguishing unit in response to a second fire alarm signal indicating that two of the combustible gas sensor, temperature sensor and composite sensor in the same monitoring unit send an alarm signal; the control unit puts the water injection pipe in a conducting state in response to a third fire alarm signal indicating an alarm signal sent by a temperature sensor in any of the monitoring units after satisfying specified conditions.

2. The energy storage system with fire-fighting equipment according to claim 1, characterized in that: The first fire alarm signal is an alarm signal sent by one of the combustible gas sensor, temperature sensor and composite sensor in any of the monitoring units; wherein, if one of the temperature sensor and the composite sensor sends an alarm signal, the control unit starts the alarm unit; if the combustible gas sensor sends an alarm signal at a first predetermined value, the control unit starts the alarm unit and the exhaust unit.

3. The energy storage system with fire fighting equipment according to claim 1, characterized in that: The second fire alarm signal is an alarm signal sent by two of the fuel gas sensor, temperature sensor and composite sensor in the same monitoring unit; wherein, the fuel gas sensor sends a secondary alarm signal at a second predetermined value; the second fire alarm signal links the exhaust unit to shut down.

4. The energy storage system with fire-fighting equipment according to claim 1, characterized in that: The third fire alarm signal is an alarm signal issued when a temperature sensor in any of the monitoring units meets a specified condition.

5. The energy storage system with fire fighting equipment according to claim 4, characterized in that: The specified condition is that the second fire alarm signal has been issued and / or the temperature sensor is in a specified state.

6. The energy storage system with fire fighting equipment according to claim 1, characterized in that: The control unit includes an exhaust controller, a gas fire extinguishing controller and a water injection fire extinguishing controller; the gas fire extinguishing controller is electrically connected to the exhaust controller, the water injection fire extinguishing controller, the alarm unit, the fire extinguishing unit, the combustible gas sensor, the temperature sensor and the composite sensor.

7. The energy storage system with fire fighting equipment according to claim 1, characterized in that: Each of the battery units includes a battery box, and a battery cell arranged in the battery box; the composite sensor is arranged in the battery box; the exhaust unit includes an exhaust component and an air inlet component; the exhaust component and the air inlet component are respectively arranged in the battery compartment; the fire extinguishing unit includes a fire extinguishing main pipe and multiple fire extinguishing branch pipes; one end of the multiple fire extinguishing branch pipes is connected to the fire extinguishing main pipe, and the other end forms the air outlet and is respectively connected to the multiple battery boxes.

8. The energy storage system with fire fighting equipment according to claim 6, characterized in that: The fire extinguishing unit includes a fire extinguishing main pipe, multiple fire extinguishing branch pipes and multiple partition valves; one end of the multiple fire extinguishing branch pipes is connected to the fire extinguishing main pipe, and the other end forms the gas outlet and is respectively connected to the multiple battery units; each of the fire extinguishing branch pipes is provided with a partition valve; the gas fire extinguishing controller is electrically connected to the multiple partition valves.

9. The energy storage system with fire fighting equipment according to claim 6, characterized in that: One end of the water injection pipe forms the water outlet arranged above the battery compartment; the water injection pipe is provided with an on-off valve electrically connected to the water injection fire extinguishing controller.

10. A firefighting method, applied to the energy storage system with firefighting equipment according to claims 1-9, characterized in that: The following steps are involved: S1: When one of the sensors in any of the monitoring units sends an alarm signal, a first fire alarm signal is sent to the control unit; S2: The control unit judges the first fire alarm signal; if the temperature sensor or the composite sensor alarms, the alarm unit is controlled to start; if the combustible gas sensor alarms at the first predetermined value, the alarm unit and the exhaust unit are controlled to start; S3: When two sensors in the same monitoring unit send out alarm signals, a second fire alarm signal is sent to the control unit; S4: the control unit judges the two alarm signals in the second fire alarm signal; if one of the two alarm signals is an alarm signal sent by the combustible gas sensor at the second predetermined value, the fire extinguishing unit is controlled to start; if not, the fire extinguishing unit is not started; S5: the fire extinguishing assembly sends a fire extinguishing unit spraying signal to the control unit after the fire extinguishing unit is started; S6: When the temperature sensor in any of the monitoring units sends an alarm signal under the premise of meeting the specified conditions, a third fire alarm signal is sent to the control unit; S7: The control unit determines whether a spraying signal from a fire extinguishing unit is received, and upon receipt of the spraying signal from the fire extinguishing unit, responds to the third fire alarm signal to place the on-off valve in a conducting state.

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