Temperature control and fire fighting integrated energy storage cabinet

Abstract

The temperature control and fire fighting integrated energy storage cabinet comprises a cabinet body, a controller, a gas fire extinguishing mechanism and a plurality of fans, wherein the gas fire extinguishing mechanism and the fans are electrically connected with the controller; the cabinet body is provided with an air inlet and an air outlet which are communicated with the interior of each grid opening at the position corresponding to each grid opening, an electromagnetic three-way valve electrically connected with the controller is installed in the air inlet, and an anti-explosion ventilation valve is installed in the air outlet; an inverter and a temperature sensor which are electrically connected with the controller, and a battery module connected with the inverter are arranged in each cabinet body; the multiple fans are installed on the cabinet body, air outlets of the multiple fans communicate with first air inlets of the electromagnetic three-way valves of the multiple grids in a one-to-one correspondence mode, and the output end of the gas fire extinguishing mechanism communicates with second air inlets of the electromagnetic three-way valves of the multiple grids through pipelines correspondingly. According to the invention, the temperature of each battery module can be monitored in real time, and heat dissipation or fire extinguishing can be carried out according to the temperature of each battery module.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage power stations, and in particular to an energy storage cabinet integrating temperature control and fire protection. Background Art

[0002] Energy storage power stations are equipment systems that store, convert and release cyclic electrical energy through electrochemical batteries or electromagnetic energy storage media. As an important part of the new energy field, the safe operation of energy storage power stations is crucial to ensuring the stability and reliability of energy supply. However, since energy storage power stations involve large-scale electrical energy storage and conversion, they may have safety problems such as battery overheating, smoking, and fire during operation. Moreover, once one of the battery modules catches fire, it is easy to ignite other surrounding battery modules, thereby causing a fire in the entire energy storage power station, which is extremely harmful to society. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes an energy storage cabinet with integrated temperature control and fire protection.

[0004] The present invention proposes a temperature-controlled fire-fighting integrated energy storage cabinet, comprising: a cabinet body, a gas fire-extinguishing mechanism, a controller, a plurality of inverters, a plurality of battery modules, a plurality of temperature sensors and a plurality of fans;

[0005] The cabinet body includes a plurality of independently sealed compartments, and the cabinet body is provided with an air inlet and an air outlet communicating with the interior of each compartment at a position corresponding to each compartment, an electromagnetic three-way valve is installed in the air inlet, and an explosion-proof air valve is installed in the air outlet;

[0006] The controller is installed on the cabinet, the multiple inverters are installed in the multiple compartments in a one-to-one correspondence, and the electromagnetic three-way valve and the multiple inverters are electrically connected to the controller respectively;

[0007] The plurality of battery modules are installed in the plurality of slots in a one-to-one correspondence, and the plurality of battery modules are electrically connected to the inverter located in the same slot respectively;

[0008] A plurality of temperature sensors are installed in the plurality of grids in a one-to-one correspondence, and the plurality of temperature sensors are electrically connected to the controller respectively;

[0009] The plurality of fans are installed on the cabinet, and the air outlets of the plurality of fans are connected to the first air inlets of the electromagnetic three-way valves of the plurality of grids in a one-to-one correspondence, and the plurality of fans are electrically connected to the controller respectively;

[0010] The output end of the gas fire extinguishing mechanism is respectively connected to the second air inlet of the electromagnetic three-way valve of the plurality of grid ports through pipelines, and the gas fire extinguishing mechanism is electrically connected to the controller;

[0011] The controller is used to control the temperature sensor to obtain the temperature of the corresponding grid opening, and when the temperature of the grid opening reaches a first preset temperature, control the start of the fan and the electromagnetic three-way valve corresponding to the grid opening to perform air cooling and heat dissipation on the grid opening; and when the temperature of the grid opening reaches a second preset temperature, control the start of the gas fire extinguishing mechanism and the electromagnetic three-way valve corresponding to the grid opening to spray fire extinguishing gas into the interior of the grid opening.

[0012] Preferably, an overheat protection thermistor is connected between each inverter and the corresponding battery module.

[0013] Preferably, a circuit breaker is connected between each overheat protection thermistor and the corresponding battery module.

[0014] Preferably, the gas fire extinguishing mechanism includes at least one of cryogenic nitrogen, heptafluoropropane, perfluorohexanone and carbon dioxide.

[0015] Preferably, an alarm is also included, which is installed on the top of the cabinet and is electrically connected to the controller.

[0016] Preferably, the controller is also used to generate an alarm prompt and transmit the alarm prompt to a remote server or a mobile client.

[0017] Preferably, a touch display is further included, which is installed on the cabinet and is electrically connected to the controller.

[0018] In the present invention, the proposed energy storage cabinet with integrated temperature control and fire protection installs each battery module in a single compartment respectively, and monitors the temperature in each compartment in real time. It can perform air cooling when the lithium battery in a certain compartment is overheated, or can be linked with the gas fire extinguishing mechanism when thermal runaway occurs or has a tendency to occur thermal runaway, and extinguish the battery module inside the compartment with fire extinguishing gas, so as to extinguish the fire at the generation stage or the initial stage, reduce the harm of the accident, and effectively improve the safety and reliability of the energy storage cabinet with integrated temperature control and fire protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of an energy storage cabinet with integrated temperature control and fire protection in one embodiment of the present invention. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] Reference Figure 1 The present invention proposes a temperature-controlled fire-fighting integrated energy storage cabinet, comprising: a cabinet body 1, a gas fire-extinguishing mechanism, a controller, a plurality of inverters, a plurality of battery modules, a plurality of temperature sensors and a plurality of fans;

[0022] The cabinet 1 includes a plurality of independently sealed compartments. An air inlet and an air outlet communicating with the interior of each compartment are provided at a position corresponding to each compartment of the cabinet 1. An electromagnetic three-way valve is installed in the air inlet, and an explosion-proof air valve is installed in the air outlet.

[0023] The controller is installed on the cabinet 1, and the multiple inverters are installed in the multiple compartments one by one. The electromagnetic three-way valve and the multiple inverters are electrically connected to the controller respectively;

[0024] The plurality of battery modules are installed in the plurality of slots in a one-to-one correspondence, and the plurality of battery modules are electrically connected to the inverter located in the same slot respectively;

[0025] A plurality of temperature sensors are installed in the plurality of grids in a one-to-one correspondence, and the plurality of temperature sensors are electrically connected to the controller respectively;

[0026] Multiple fans are installed on the cabinet 1, and the air outlets of the multiple fans are connected to the first air inlets of the electromagnetic three-way valves of the multiple compartments in a one-to-one correspondence, and the multiple fans are electrically connected to the controller respectively;

[0027] The output end of the gas fire extinguishing mechanism is respectively connected to the second air inlet of the electromagnetic three-way valve of the plurality of grid ports through pipelines, and the gas fire extinguishing mechanism is electrically connected to the controller;

[0028] The controller is used to control the temperature sensor to obtain the temperature of the corresponding grid opening, and when the temperature of the grid opening reaches a first preset temperature, control the start of the fan and the electromagnetic three-way valve corresponding to the grid opening to perform air cooling and heat dissipation on the grid opening; and when the temperature of the grid opening reaches a second preset temperature, control the start of the gas fire extinguishing mechanism and the electromagnetic three-way valve corresponding to the grid opening to spray fire extinguishing gas into the interior of the grid opening.

[0029] The present invention installs each battery module in a single compartment respectively, and monitors the temperature in each compartment in real time. It can perform air cooling to dissipate heat when the lithium battery in a certain compartment is overheated, or cooperate with the gas fire extinguishing mechanism when thermal runaway occurs or has a tendency to occur thermal runaway, and use fire extinguishing gas to extinguish the battery module inside the compartment, so as to extinguish the fire in the generation stage or early stage, reduce the harm of accidents, and effectively improve the safety and reliability of the energy storage cabinet with integrated temperature control and fire protection.

[0030] In this embodiment, an overheat protection thermistor is connected between each inverter and the corresponding battery module.

[0031] With such an arrangement, when the temperature in the cell rises, the charging current output by the inverter can be reduced to reduce the heat generated by the battery, thereby performing temperature control.

[0032] In a further embodiment, a circuit breaker is connected between each overheat protection thermistor and the corresponding battery module.

[0033] With this arrangement, after the inverter reduces the output charging current, if the temperature in the cell still rises and a short circuit occurs in the battery in the battery module, the current in the circuit suddenly increases and exceeds the load of the circuit breaker, the circuit breaker will automatically disconnect to protect the thermistor, inverter and controller.

[0034] In this embodiment, the gas fire extinguishing mechanism includes at least one of low-temperature nitrogen, heptafluoropropane, perfluorohexanone and carbon dioxide.

[0035] This setting can isolate oxygen, quickly extinguish the fire and avoid re-ignition as much as possible.

[0036] Among them, perfluorohexanone (C6F12O) is a new type of clean gas fire extinguishing agent. Its fire extinguishing mechanism is mainly chemical inhibition. It can capture combustion free radicals through fluorine-containing substances (CF3, CF2) to quickly extinguish the fire. Its physical inhibition is mainly the heat absorption of perfluorohexanone phase change, thereby reducing the surface temperature of the battery, that is, it also plays a cooling role.

[0037] In this embodiment, an alarm is also included. The alarm is installed on the top of the cabinet 1 and is electrically connected to the controller to remind the user of a fault.

[0038] In a further embodiment, the alarm is an audible and visual alarm.

[0039] In this embodiment, the controller is also used to generate an alarm prompt and transmit the alarm prompt to a remote server or a mobile client.

[0040] In this embodiment, a touch display 2 is also included. The touch display 2 is installed on the cabinet 1. The touch display 2 is electrically connected to the controller. The touch display is used for human-computer interaction.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A temperature control and fire protection integrated energy storage cabinet, characterized in that: include: Cabinet, gas fire extinguishing mechanism, controller, multiple inverters, multiple battery modules, multiple temperature sensors and multiple fans; The cabinet body includes a plurality of independently sealed compartments, and the cabinet body is provided with an air inlet and an air outlet communicating with the interior of each compartment at a position corresponding to each compartment, an electromagnetic three-way valve is installed in the air inlet, and an explosion-proof air valve is installed in the air outlet; The controller is installed on the cabinet, the multiple inverters are installed in the multiple compartments in a one-to-one correspondence, and the electromagnetic three-way valve and the multiple inverters are electrically connected to the controller respectively; The plurality of battery modules are installed in the plurality of slots in a one-to-one correspondence, and the plurality of battery modules are electrically connected to the inverter located in the same slot respectively; A plurality of temperature sensors are installed in the plurality of grids in a one-to-one correspondence, and the plurality of temperature sensors are electrically connected to the controller respectively; The plurality of fans are installed on the cabinet, and the air outlets of the plurality of fans are connected to the first air inlets of the electromagnetic three-way valves of the plurality of grids in a one-to-one correspondence, and the plurality of fans are electrically connected to the controller respectively; The output end of the gas fire extinguishing mechanism is respectively connected to the second air inlet of the electromagnetic three-way valve of the plurality of grid ports through pipelines, and the gas fire extinguishing mechanism is electrically connected to the controller; The controller is used to control the temperature sensor to obtain the temperature of the corresponding grid opening, and when the temperature of the grid opening reaches a first preset temperature, control the start of the fan and the electromagnetic three-way valve corresponding to the grid opening to perform air cooling and heat dissipation on the grid opening; and when the temperature of the grid opening reaches a second preset temperature, control the start of the gas fire extinguishing mechanism and the electromagnetic three-way valve corresponding to the grid opening to spray fire extinguishing gas into the interior of the grid opening.

2. The temperature control and fire protection integrated energy storage cabinet according to claim 1 is characterized in that: An overheat protection thermistor is connected between each inverter and the corresponding battery module.

3. The temperature control and fire protection integrated energy storage cabinet according to claim 2 is characterized in that: A circuit breaker is connected between each overheat protection thermistor and the corresponding battery module.

4. The temperature control and fire protection integrated energy storage cabinet according to claim 1 is characterized in that: The gas fire extinguishing mechanism includes at least one of low-temperature nitrogen, heptafluoropropane, perfluorohexanone and carbon dioxide.

5. The temperature control and fire protection integrated energy storage cabinet according to claim 1 is characterized in that: The utility model also comprises an alarm, which is installed on the top of the cabinet and is electrically connected with the controller.

6. The temperature control and fire protection integrated energy storage cabinet according to claim 1, characterized in that: The controller is also used to generate an alarm prompt and transmit the alarm prompt to a remote server or a mobile client.

7. The temperature control and fire protection integrated energy storage cabinet according to claim 1, characterized in that: It also includes a touch display, which is installed on the cabinet and is electrically connected to the controller.

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