Fire extinguishing system and applicable energy storage device thereof

Abstract

The utility model provides a fire extinguishing system and an applicable energy storage device thereof, the fire extinguishing system is applicable to the energy storage device, the energy storage device comprises one or more accommodating spaces, each accommodating space comprises a plurality of battery modules, the fire extinguishing system comprises one or more acquisition units, each acquisition unit is provided with a first output end and a first input end, and the first output end is connected with the first input end; each acquisition unit is located in at least one of the one or more accommodating spaces; each fire-fighting execution mechanism is provided with a fire-fighting execution mechanism input end, the fire-fighting execution mechanism input end is connected with the first output end of the acquisition unit, and the fire-fighting execution mechanism is used for releasing a fire-fighting medium to the accommodating space; and the battery monitoring unit is located in the energy storage device, and the battery monitoring unit is connected to the first input end of the acquisition unit. According to the fire extinguishing system and the applicable energy storage device thereof provided by the invention, multi-dimensional fire monitoring, alarming and suppression can be carried out on the energy storage device.

Description

Technical Field

[0001] The present application mainly relates to the field of electrochemical energy storage technology, and in particular to a fire protection system and an energy storage device applicable thereto. Background Art

[0002] At present, all lithium-ion battery application scenarios are equipped with fire protection systems. Most existing fire protection systems have relatively comprehensive fire extinguishing functions, but the detection time required to sense a fire is long or there is a risk of false alarms. Most lithium-ion battery applications are passive detection, that is, abnormal conditions can only be sensed after the battery pressure relief valve is opened. Currently, there are companies such as Sungrow Power Supply and Singularity Energy that are conducting research. In the existing field, multiple detection devices are required to monitor the fire situation of energy storage cabinets, the detection time is relatively delayed, the system cost is high, and the operation and maintenance cost is high. Utility Model Content

[0003] The technical problem to be solved by the present application is to provide a fire protection system and an energy storage device applicable thereto which can perform multi-dimensional fire monitoring, alarm and suppression on the energy storage device.

[0004] In order to solve the above technical problems, the present application provides a fire protection system, which is suitable for an energy storage device, wherein the energy storage device includes one or more accommodating spaces, each of which includes a number of battery modules, and is characterized in that the fire protection system includes: one or more acquisition units, each of which has a first output end and a first input end, and each of the acquisition units is located in at least one of the one or more accommodating spaces; one or more fire protection actuators, each of which is located in at least one of the one or more accommodating spaces, each of which has a fire protection actuator input end, and the fire protection actuator input end is connected to the first output end of the acquisition unit, and the fire protection actuator is used to release a fire protection medium to the accommodating space; and a battery monitoring unit, which is located in the energy storage device, and the battery monitoring unit is connected to the first input end of the acquisition unit.

[0005] Optionally, the battery monitoring unit includes a battery management system, an energy management system and / or an energy storage inverter.

[0006] Optionally, the fire protection system further includes a controller, the battery monitoring unit is connected to the first input end of the acquisition unit via the controller, and the controller is suitable for outputting a start signal to the acquisition unit.

[0007] Optionally, the fire protection system further comprises an alarm device connected to the controller, wherein the alarm device is used to issue a fire alarm.

[0008] Optionally, the fire protection system is characterized in that it also includes a first connecting wire harness connecting the acquisition unit and the fire protection actuator, a second connecting wire harness connecting the acquisition unit and the controller, and a third connecting wire harness connecting the controller and the alarm device, wherein the first connecting wire harness, the second connecting wire harness and the third connecting wire harness are all flame-retardant wire harnesses; and the length range of the first connecting wire harness is 250mm~350mm, and / or the length range of the second connecting wire harness is 1500mm~2500mm, and / or the length range of the third connecting wire harness is 1200mm~1400mm.

[0009] Optionally, the fire protection system also includes one or more sprinklers located in at least one of the one or more accommodating spaces, each of the fire protection actuators having a fire protection actuator output end, the fire protection actuator output end being connected to the sprinkler, and the sprinkler being used to spray the fire protection medium released from the fire protection actuator into the accommodating space.

[0010] Optionally, the fire protection system further comprises a fourth connecting wire harness connecting the fire protection actuator and the nozzle, wherein the fourth connecting wire harness is a flame retardant wire harness, and the length of the fourth connecting wire harness ranges from 350 mm to 450 mm.

[0011] Optionally, the acquisition unit is suitable for sending a fire signal to the fire execution mechanism through the first output end according to the temperature and / or gas concentration in the accommodating space, and the fire execution mechanism is suitable for releasing the fire fighting medium to the accommodating space according to the fire signal.

[0012] Optionally, the fire fighting medium comprises a fire extinguishing agent and / or an aerosol.

[0013] In order to solve the above technical problems, the present application provides an energy storage device, comprising:

[0014] One or more accommodating spaces, each of which includes a plurality of battery modules; and the fire protection system as described above.

[0015] Compared with the prior art, the fire protection system provided by the present application and the energy storage device applicable thereto can detect the conditions of each accommodating space inside the energy storage device through the collection unit, so as to achieve early detection of fire. When a fire situation is predicted, the fire protection medium can be released through the fire protection actuator to extinguish the fire inside the energy storage device, so as to suppress the fire. At the same time, the present application can also control the alarm device to alarm through the controller through the battery monitoring unit and extinguish the fire through the communication between the controller and the collection unit and the fire protection actuator. The present application can realize multi-dimensional fire monitoring, alarm and suppression of the energy storage device through the dual start logic of the fire protection self-start of the collection unit and the controller controlling the collection unit to start the fire protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present application. They are included and constitute a part of the present application. The accompanying drawings illustrate embodiments of the present application and together with the present specification serve to explain the principles of the present application. In the accompanying drawings:

[0017] Figure 1-2 It is a structural schematic diagram of a fire protection system and an energy storage device applicable thereto in one embodiment of the present application.

[0018] Reference numerals

[0019] Collection Unit 101

[0020] The first output terminal A

[0021] First input terminal B

[0022] Fire enforcement agency 102

[0023] Fire actuator input terminal C

[0024] Controller 103

[0025] Alarm device 104

[0026] Nozzle 105

[0027] Battery Monitoring Unit 200 DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0029] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0031] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0034] This application refers to Figure 1 and Figure 2 An energy storage device 10 is proposed, comprising one or more accommodating spaces (not shown) and a fire fighting system 100. Each accommodating space comprises a plurality of battery modules (not shown), and the present application appears and / or implies one or more possibilities.

[0035] Reference Figure 1 and Figure, Figure 1 Schematic diagram of the structure of the energy storage device 10 is shown. Figure 1 As shown, the fire protection system 100 mainly includes a collection unit 101, a fire protection actuator 102 and a battery monitoring unit (not shown).

[0036] Specifically, the collection unit 101 has a first output terminal A and a first input terminal B. A storage space of the energy storage device 10 includes at least one collection unit 101. The number of collection units 101 in a storage space may be multiple, and the present application is not limited thereto. Preferably, the collection unit 101 can detect the temperature and / or gas concentration in the storage space to determine whether a fire is about to occur or has occurred in the storage space. Exemplarily, the collection unit may be a Delico BJ-FD-15 fire detector, and the gas concentration may be the concentration of hydrogen, carbon monoxide, smoke, smoke, hydrocarbons, aromatics, alcohols, ketones, esters, and amines. It should be noted that the "and / or" relationship between two or more features in the text of the present application means any one of the two or more features, or a combination of any two or more. For example, the fact that the collection unit 101 can detect the temperature and / or gas concentration in the storage space means that the collection unit 101 can detect the temperature, or the gas concentration, or the temperature and the gas concentration in the storage space. The same interpretation shall apply to the “and / or” relationship between two or more features appearing below.

[0037] In this embodiment, the number of fire actuators 102 is equal to the number of collection units 101, and at least one fire actuator 102 is included in one accommodation space of the energy storage device 10. The fire actuator 102 is connected to the collection unit 101 through a first connection harness L1. Preferably, the first connection harness L1 is a flame-retardant harness with a length range of 250 mm to 350 mm, which can be adaptively adjusted according to the distance between the fire actuator 102 and the collection unit 101 to enhance the flexibility of the system. Each fire actuator 102 has a fire actuator input terminal C, and the fire actuator input terminal C is connected to the first output terminal A of the collection unit 101. Exemplarily, the fire fighting medium includes a fire extinguishing agent and / or an aerosol. Preferably, when the temperature in the accommodation space exceeds a first preset threshold value and / or the gas concentration exceeds a second preset threshold value, the collection unit 101 sends a start instruction to the fire actuator 102 through the first output terminal A to control the fire actuator 102 to perform a fire extinguishing operation. Exemplarily, the fire extinguishing agent may be a gas fire extinguishing agent, a water-based fire extinguishing agent, a foam fire extinguishing agent and / or a dry powder fire extinguishing agent. Preferably, the fire extinguishing agent may be a perfluorohexanone fire extinguishing agent or a heptafluoropropane fire extinguishing agent.

[0038] Furthermore, the fire protection system 100 also includes one or more nozzles 105, the number of which is equal to the number of fire protection actuators 102, and at least one nozzle 105 is included in a storage space of the energy storage device 10. Each fire protection actuator has a fire protection actuator output terminal D, and the fire protection actuator output terminal D is connected to the nozzle 105 through a fourth connecting harness L4. Preferably, the fourth connecting harness L4 is a flame retardant harness with a length range of 350 mm to 450 mm, which can be adaptively adjusted according to the distance between the fire protection actuator output terminal D and the nozzle 105 to enhance the flexibility of the system. The nozzle 105 is used to spray the fire protection medium released from the fire protection actuator 102 into the storage space.

[0039] In this embodiment, when any one of the temperature, hydrogen concentration, carbon monoxide concentration, smoke concentration and / or volatile organic compound concentration in the accommodating space detected by the collection unit 101 reaches the fire standard, the collection unit 101 sends a fire signal to the fire actuator 102 through the first output terminal A. After receiving the fire signal, the fire actuator 102 releases a fire-fighting medium into the accommodating space through the nozzle 105 to extinguish the fire.

[0040] On the other hand, the fire protection system 100 further includes a battery monitoring unit 200 located in the energy storage device 10, and the battery monitoring unit 200 is connected to the first input terminal A of the acquisition unit 101. Exemplarily, the battery monitoring unit 200 includes a battery management system, an energy management system and / or a current conversion system.

[0041] Furthermore, the fire protection system 100 further includes a controller 103, through which the battery monitoring unit is connected to the first input terminal B of the acquisition unit 101, and the controller 103 is adapted to output a start signal to the acquisition unit 101. The acquisition unit 101 and the controller 103 are connected and communicate in real time through the second connection harness L2. In this embodiment, when the battery monitoring unit detects that the temperature of the accommodation space is abnormal, the controller 103 determines whether the temperature in the accommodation space exceeds the first preset threshold. If the temperature exceeds the first preset threshold, the battery monitoring unit controls the acquisition unit 101 through the controller 103, and the controller 103 inputs a start signal to the acquisition unit 101 to start the fire actuator 102 to release the fire protection medium. Preferably, the second connection harness L2 is a flame retardant harness, and its length ranges from 1500mm to 2500mm. Its length can be adaptively adjusted according to the distance between the acquisition unit 101 and the controller 103 to enhance the flexibility of the system.

[0042] Preferably, in this embodiment, the fire protection system 100 further includes an alarm device 104, which is connected to the controller 103 via a third connecting harness L3, preferably, the third connecting harness L3 is a flame retardant harness, and its length ranges from 1200 mm to 1400 mm, and its length can be adaptively adjusted according to the distance between the alarm device 104 and the controller 103, thereby enhancing the flexibility of the system. Used to issue a fire alarm.

[0043] In this embodiment, when the battery monitoring unit detects that a fire is about to occur in the energy storage device 10 (for example, when the temperature exceeds the normal temperature inside the energy storage device 10 but has not yet caused a fire) or has already occurred, it will communicate with the collection unit 101 through the controller 103. After the collection unit 101 receives the fire signal from the controller 103, it sends a fire signal to the fire actuator 102 through the first output terminal A. After receiving the fire signal, the fire actuator 102 releases a fire medium into the accommodating space through the nozzle 105 to extinguish the fire.

[0044] The fire protection system provided in any embodiment of the present application can judge the conditions of each storage space inside the energy storage device through the temperature, hydrogen concentration, carbon monoxide concentration, smoke concentration and volatile organic compound concentration inside the energy storage device by the acquisition unit, so as to achieve early detection of fire. When a fire situation is predicted, the fire-fighting medium can be released by the fire-fighting actuator to extinguish the fire inside the energy storage device. At the same time, the present application also monitors the inside of the energy storage device through the battery monitoring unit. When a fire situation is detected, the battery monitoring unit can control the alarm device to sound an alarm through the controller, and connect the acquisition unit through the controller, so as to control the fire-fighting actuator to release the fire-fighting medium to extinguish the fire through the acquisition unit.

[0045] This application uses the dual start logic of the fire self-start of the acquisition unit and the controller controlling the acquisition unit to start the fire, which can realize the multi-dimensional fire monitoring, alarm and suppression of the energy storage device. The fire protection system can accurately judge the precursors of the fire, improve the efficiency of detection, and timely alarms of the alarm device can prompt personnel to evacuate safely and extinguish the fire simultaneously. Furthermore, due to the simple structure of the fire protection system, the cost of detection can also be reduced.

[0046] The basic concepts have been described above. Obviously, for those skilled in the art, the above application disclosure is only an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0047] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0048] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0049] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0050] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A fire fighting system, applicable to an energy storage device, wherein the energy storage device comprises one or more accommodating spaces, each of which comprises a plurality of battery modules, characterized in that: The fire protection system comprises: One or more collection units, each of which has a first output end and a first input end, and each of the collection units is located in at least one of the one or more accommodating spaces; one or more fire-fighting actuators, each of which is located in at least one of the one or more accommodating spaces, each of which has a fire-fighting actuator input terminal, the fire-fighting actuator input terminal is connected to the first output terminal of the acquisition unit, and the fire-fighting actuator is used to release a fire-fighting medium into the accommodating space; and A battery monitoring unit is located in the energy storage device, and the battery monitoring unit is connected to the first input end of the acquisition unit.

2. The fire fighting system according to claim 1, characterized in that: The battery monitoring unit includes a battery management system, an energy management system and / or a battery conversion system.

3. The fire fighting system according to claim 1, characterized in that: It also includes a controller, the battery monitoring unit is connected to the first input end of the acquisition unit through the controller, and the controller is suitable for outputting a start signal to the acquisition unit.

4. The fire fighting system according to claim 3, characterized in that: It also includes an alarm device connected to the controller, and the alarm device is used to issue a fire alarm.

5. The fire fighting system according to claim 4, characterized in that: It also includes a first connection harness connecting the acquisition unit and the fire actuator, a second connection harness connecting the acquisition unit and the controller, and a third connection harness connecting the controller and the alarm device, wherein: The first connecting wire harness, the second connecting wire harness and the third connecting wire harness are all flame retardant wire harnesses; and The length of the first connecting wire harness ranges from 250 mm to 350 mm, and / or the length of the second connecting wire harness ranges from 1500 mm to 2500 mm, and / or the length of the third connecting wire harness ranges from 1200 mm to 1400 mm.

6. The fire fighting system according to claim 1, characterized in that: It also includes one or more nozzles, which are located in at least one of the one or more accommodating spaces. Each of the fire-fighting actuators has a fire-fighting actuator output end, which is connected to the nozzle. The nozzle is used to spray the fire-fighting medium released from the fire-fighting actuator into the accommodating space.

7. The fire fighting system according to claim 6, characterized in that: It also includes a fourth connecting wire harness connecting the fire-fighting actuator and the nozzle, wherein the fourth connecting wire harness is a flame-retardant wire harness, and the length of the fourth connecting wire harness ranges from 350 mm to 450 mm.

8. The fire fighting system according to claim 1, characterized in that: The acquisition unit is adapted to send a fire signal to the fire-fighting actuator through the first output end according to the temperature and / or gas concentration in the accommodating space, and the fire-fighting actuator is adapted to release the fire-fighting medium to the accommodating space according to the fire signal.

9. The fire fighting system according to claim 8, characterized in that: The fire fighting medium includes a fire extinguishing agent and / or an aerosol.

10. An energy storage device, characterized in that: include: one or more storage spaces; A plurality of battery modules are located in each of the accommodating spaces; as well as A fire fighting system as claimed in any one of claims 1 to 9.

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