energy storage cabinet

Abstract

The application provides an energy storage cabinet, comprising: a control module connected with a power supply; an alarm module connected with the control module; a fire extinguishing module connected with the control module; and an explosion venting module comprising an explosion venting valve connected with the control module, wherein the control module controls the opening and closing of the explosion venting valve when a preset condition is reached. The energy storage cabinet provided by the application can timely control the start of the explosion venting valve, shorten the response time of the fire extinguishing system, and timely and quickly release the pressure in the energy storage cabinet.

Description

Technical Field

[0001] This utility model relates to the field of energy storage system technology, and specifically to an energy storage cabinet. Background Technology

[0002] As integrated energy storage cabinet products continue to be innovated, pressure relief devices for integrated energy storage cabinets are being used more and more frequently.

[0003] Traditional pressure relief devices include passive and active pressure relief. Passive pressure relief occurs when the pressure inside the energy storage cabinet reaches a certain value and exceeds the device's withstand pressure; the valve mechanism of the device passively opens to release the excess pressure. Active pressure relief relies on EMS backend data analysis and logical judgment to determine whether to trigger the explosion relief valve. This approach requires communication between the EMS system and the fire protection, battery management system (BMS), and PCS systems for data exchange and analysis, which lengthens the feedback time. If any communication is interrupted, the explosion relief valve may miss the golden pressure relief period, causing irreversible damage to the battery system, and the entire integrated energy storage cabinet may be at risk of exploding at any time. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides an energy storage cabinet that can promptly control the activation of the explosion relief valve, shorten the fire response time, and quickly and efficiently remove the pressure inside the energy storage cabinet.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The first aspect of this utility model discloses an energy storage cabinet, comprising:

[0007] Control module, which is connected to a power source;

[0008] An alarm module, which is connected to the control module;

[0009] A fire extinguishing module, which is connected to the control module;

[0010] An explosion relief module, comprising an explosion relief valve connected to a control module, wherein the control module controls the opening and closing of the explosion relief valve when a preset condition is met.

[0011] The above technical solution connects the control module and the explosion relief module, and the control module directly controls the explosion relief valve to start, which shortens the fire response time, can quickly and timely remove the pressure in the energy storage cabinet, and reduces the risk of explosion of the energy storage cabinet.

[0012] Furthermore, the control module includes a first relay and a second relay, both of which are connected to the explosion relief valve. When a first preset condition is met, the control module controls the first relay to open the explosion relief valve, and when a second preset condition is met, the control module controls the second relay to close the explosion relief valve.

[0013] By connecting a first relay and a second relay to the fire-fighting device, the explosion relief valve can be opened and closed quickly, improving the stability of the fire-fighting device. Moreover, the first relay and the second relay are low in cost, reliable in performance, and easy to maintain and replace.

[0014] Furthermore, when the first relay is turned on, the second relay is turned off, and when the second relay is turned on, the first relay is turned off. The control module interlocks the first and second relays, ensuring that only one of them is in a closed state, guaranteeing the proper opening and closing of the explosion relief valve and preventing short circuits.

[0015] Furthermore, the explosion relief valve is equipped with an electric actuator. A first relay controls the actuator to move forward to open the valve, and a second relay controls the actuator to move backward to close the valve. By controlling the actuator's movement via relays, the response speed of the explosion relief valve is improved.

[0016] Furthermore, the power supply for both the first and second relays is 24V.

[0017] Furthermore, a fan is installed on the explosion relief valve, and the fan is connected to the control module. By installing the fan on the explosion relief valve, when the valve is activated, the fan can accelerate the discharge of gas from the energy storage cabinet, shortening the depressurization time. When the valve is closed, the fan can prevent gas or water vapor from outside the energy storage cabinet from flowing back into it.

[0018] Furthermore, the alarm module includes an audible and visual alarm, and the control module controls the fire extinguishing module to start after detecting that the audible and visual alarm has been triggered.

[0019] Furthermore, the fire extinguishing module includes a storage container for storing the fire extinguishing medium, a solenoid valve disposed on the storage container, and a feedback line connecting the fire extinguishing module and the control module. The feedback line is used to provide feedback on the opening and closing status of the solenoid valve to the control module. The feedback line is used to feed back the opening and closing status of the solenoid valve on the fire extinguishing module to the control module, and the control module feeds back the status of whether the fire extinguishing module has been triggered to the energy management system.

[0020] Furthermore, the control module includes an automatic switch and a manual switch. The automatic switch is used to control the automatic operation of the module, and when the fire protection system malfunctions, personnel can manually turn the control module on and off.

[0021] The second aspect of this utility model discloses an energy storage cabinet, which includes a fire-fighting device as described in any of the first aspects, an energy management system communicatively connected to a control module, a battery management system communicatively connected to the energy management system and the control module, and an energy storage converter connected to the energy management system.

[0022] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0023] 1. This application connects the control module to the explosion relief module, and the control module directly controls the explosion relief valve to start, which shortens the fire response time, can quickly and timely remove the pressure in the energy storage cabinet, and reduces the risk of explosion of the energy storage cabinet.

[0024] 2. This application installs a fan on the explosion relief valve. When the explosion relief valve is activated, the fan can accelerate the discharge of gas from the energy storage cabinet and shorten the depressurization time. When the explosion relief valve is closed, the fan can prevent gas or water vapor from outside the energy storage cabinet from flowing back into the energy storage cabinet.

[0025] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a connection diagram of a fire-fighting device provided in an embodiment of this utility model;

[0028] Figure 2 This is a schematic diagram of the working principle of a relief valve provided in an embodiment of this utility model.

[0029] The reference numerals in the above figures are as follows: 1. Control module; 2. Audible and visual alarm; 3. Fire extinguishing module; 4. Explosion relief valve; 5. Electric actuator; 6. Fan; 7. Solenoid valve; 8. Feedback line; 9. Manual / automatic switch; 10. Energy management system; 11. Battery management system. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. In addition, the accompanying drawings of the present invention are only simple schematic illustrations and are not depictions based on actual dimensions, as stated in advance.

[0031] In this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "forward," "backward," "between," "nearer," and "farthest" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.

[0033] Reference Figure 1 As shown in the figure, this application embodiment provides an energy storage cabinet, including: a control module 1, an alarm module, a fire extinguishing module 3, and an explosion relief module. The control module 1 is connected to a power source. The alarm module, the fire extinguishing module 3, and the explosion relief module are all connected to the control module 1. The explosion relief module includes an explosion relief valve 4. The explosion relief valve 4 is directly controlled by the control module 1 through its connection with the control module 1. When a preset condition is met, the control module 1 controls the opening and closing of the explosion relief valve 4.

[0034] With the above structure, in this embodiment of the application, the explosion relief valve 4 is directly controlled by the control module 1. Compared with the fire protection system in the traditional energy storage cabinet, the fire response time is shortened, the pressure in the energy storage cabinet can be eliminated in a timely and rapid manner, and the risk of explosion of the energy storage cabinet is reduced.

[0035] Specifically, such as Figure 1As shown, the explosion relief valve 4 is equipped with an electric actuator 5. The electric actuator 5 moves forward to open the explosion relief valve 4, and moves backward to close the explosion relief valve 4. The control module 1 is connected to the electric actuator 5 via a connecting line. When a first preset condition is met, the control module 1 directly sends a first signal to the explosion relief valve 4 to initiate the electric actuator 5 to move forward. When a second preset condition is met, the control module sends a second signal to the explosion relief valve 4 to initiate the electric actuator 5 to move backward. The first signal is the signal for opening the explosion relief valve 4, and the second signal is the signal for closing the explosion relief valve 4.

[0036] In one possible embodiment, the control module 1 includes a first relay KA1 and a second relay KA2, both of which are connected to the explosion relief valve 4. When a first preset condition is met, the control module 1 controls the first relay KA1 to open the explosion relief valve 4. When a second preset condition is met, the control module 1 controls the second relay KA2 to close the explosion relief valve 4.

[0037] like Figure 2 As shown, control module 1, i.e., the symbol XF in the figure, is connected to the first relay KA1 and the second relay KA2 respectively. The power supply for the first relay KA1 and the second relay KA2 is 24V.

[0038] When the first preset condition is met, control module 1 controls the 24V power supply to connect the circuit in the forward direction, energizing the first relay KA1. The normally open contact of the first relay KA1 closes, and because the normally closed contact of the second relay KA2 is closed, the circuit is completed, and the electric push rod 5 of the explosion relief valve 4 moves forward, activating the explosion relief valve 4. When the second preset condition is met, control module 1 controls the 24V power supply to connect the circuit in the reverse direction, energizing the second relay KA2. The normally open contact of the second relay KA2 closes, and because the normally closed contact of the first relay KA1 is closed, the circuit is completed, and the electric push rod 5 of the explosion relief valve 4 retracts. When the explosion relief valve 4 is closed, the normally closed contact of the first relay KA1 opens when the first relay KA1 is energized, and the second relay KA2 cannot be energized. When the second relay KA2 is energized, its normally closed contact opens, and the first relay KA1 cannot be energized. Thus, when the first relay KA1 is turned on, the second relay KA2 is turned off, and when the second relay KA2 is turned on, the first relay KA1 is turned off. This achieves interlocking between the first relay KA1 and the second relay KA2, avoiding a series short circuit in the circuit and preventing the explosion relief valve 4 from failing to start properly or being damaged.

[0039] The preset conditions in this application embodiment include a first preset condition and a second preset condition. The first preset condition is that when a level 3 warning occurs in the energy storage cabinet and the fire extinguishing module 3 is activated, the control module 1 detects that the pressure in the energy storage cabinet exceeds a preset first threshold. The second preset condition is that the control module 1 detects that the pressure in the energy storage cabinet reaches a preset second threshold or the time for the explosion relief valve 4 to open meets a preset duration.

[0040] like Figure 1 and Figure 2 As shown, a fan 6 is installed on the explosion relief valve 4, and the fan 6 is connected to the control module 1 via a connecting cable. The fan 6 is controlled by the control module 1. When the control module 1 sends an open signal to the fan 6, the fan 6 turns on; when the control module 1 sends a close signal to the fan, the fan 6 turns off. This achieves the function of accelerating the release of pressure inside the energy storage cabinet and preventing airflow from outside the energy storage cabinet from flowing back into the energy storage cabinet.

[0041] like Figure 1 As shown, the alarm module includes an audible and visual alarm 2. When the control module 1 detects that the audible and visual alarm 2 has been activated, it controls the fire extinguishing module 3 to start. The fire extinguishing module 3 includes a storage container for storing fire extinguishing media and a solenoid valve 7 disposed on the storage container. The control module 1 controls the opening and closing of the storage container by controlling the opening and closing state of the solenoid valve 7.

[0042] In order to determine the opening and closing status of the fire extinguishing module 3, in one possible embodiment, a feedback line 8 is connected between the fire extinguishing module 3 and the control module 1. The feedback line 8 is used to feed back the opening and closing status of the solenoid valve 7 to the control module 1. The control module 1 feeds back the opening and closing status of the solenoid valve 7 to the energy management system. Based on the information fed back by the energy management system, the staff can determine whether it is necessary to intervene in the opening and closing status of the fire extinguishing module 3, thereby ensuring that the fire extinguishing module 3 is activated and avoiding disaster losses.

[0043] like Figure 1 As shown, the control module 1 includes a manual / automatic switch 9 for automatic and manual control of the opening and closing of the control module 1. The control module 1 includes a fire alarm control panel, which is connected to the alarm module, the fire extinguishing module 3 and the explosion relief module respectively. The manual / automatic switch 9 can turn the fire alarm control panel on and off.

[0044] The energy storage cabinet described in this application embodiment also includes an energy management system 10 that is communicatively connected to the control module 1, a battery management system 11 that is communicatively connected to both the energy management system 10 and the control module 1, and an energy storage converter that is connected to the energy management system 10.

[0045] This utility model uses specific embodiments to illustrate the principle and implementation of the utility model. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the utility model. Therefore, the content of this specification should not be construed as a limitation of the utility model.

Claims

1. An energy storage cabinet, characterized in that, include: A control module, which is connected to a power source, includes a first relay and a second relay. An alarm module, which is connected to the control module; A fire extinguishing module, which is connected to the control module; An explosion relief module includes an explosion relief valve. A first relay and a second relay are both connected to the explosion relief valve. When a first preset condition is met, the control module controls the first relay to open the explosion relief valve. When a second preset condition is met, the control module controls the second relay to close the explosion relief valve. The energy management system is communicatively connected to the control module; The battery management system is communicatively connected to the energy management system and the control module. An energy storage converter is connected to the energy management system.

2. The energy storage cabinet according to claim 1, characterized in that, When the first relay is turned on, the second relay is turned off; when the second relay is turned on, the first relay is turned off.

3. The energy storage cabinet according to claim 1, characterized in that, The explosion relief valve is equipped with an electric actuator. When the first relay is activated, it controls the electric actuator to move forward to open the explosion relief valve, and when the second relay is activated, it controls the electric actuator to move backward to close the explosion relief valve.

4. The energy storage cabinet according to claim 1, characterized in that, The power supply for the first relay and the second relay is 24V.

5. An energy storage cabinet according to claim 1, characterized in that, The explosion relief valve is equipped with a fan, which is connected to the control module.

6. An energy storage cabinet according to claim 1, characterized in that, The alarm module includes an audible and visual alarm, and the control module controls the fire extinguishing module to start after detecting that the audible and visual alarm has been triggered.

7. An energy storage cabinet according to claim 1, characterized in that, The fire extinguishing module includes a storage container for storing fire extinguishing media, a solenoid valve disposed on the storage container, and a feedback line connecting the fire extinguishing module and the control module. The feedback line is used to provide feedback to the control module on the opening and closing status of the solenoid valve.

8. An energy storage cabinet according to claim 1, characterized in that, The control module includes an automatic switch and a manual switch.

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