A lithium battery cabinet fire-fighting smoke exhaust device and method based on a general base station energy storage system

Abstract

A kind of lithium battery cabinet fire-fighting smoke exhaust device based on general base station energy storage system, including battery box, lithium battery, battery system power supply, heat dissipation unit and fire-fighting smoke exhaust system.The heat dissipation unit includes a heat dissipation fan arranged on the battery box, and a ventilation air valve arranged on the battery box, the fire-fighting smoke exhaust system includes a central processing unit arranged in the battery box, and communication unit, temperature detection unit, smoke detection unit, fan control unit, air valve control unit are sequentially connected to the central processing unit.The fan control unit is connected with the heat dissipation fan, and the air valve control unit is connected with the ventilation air valve to control the heat dissipation and ventilation in the battery box.The lithium battery cabinet fire-fighting smoke exhaust device and method based on general base station energy storage system realize automatic adjustment of heat dissipation, reduce fire damage and improve safety performance.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fire safety engineering, and particularly relates to a lithium battery cabinet fire smoke exhaust device and method based on a general base station energy storage system. BACKGROUND

[0002] At present, in the use process of the general base station, the energy density of the lead-acid battery is low, the volume and weight of the lead-acid battery are large, the service life of the lead-acid battery is short, the lead-acid battery contains heavy metals, and the abandoned battery pollutes the environment, so the lithium battery energy storage scheme in the base station is replacing the traditional lead-acid battery scheme, but the lithium battery energy storage is in a rapid development stage, and at present, no perfect scheme is provided by major manufacturers in the safety aspect. Due to the chemical properties of the lithium battery, once a fault, short circuit, liquid leakage and the like occur, not only a fire will occur, but also a large amount of corrosive gas will be generated, so fire-fighting and ventilation measures need to be taken in the base station.

[0003] For example, a lithium ion battery fire test cabinet with an automatic alarm and fire extinguishing system, with a patent number CN201410217527.X, is composed of a fire cabinet main body, an automatic alarm system, a battery fixing support, a heat source simulation system, a measurement and monitoring system, a fire extinguishing system and a smoke exhaust system. Through multiple adjustments, the sensitivity and response characteristics of different types of fire detectors after the lithium ion battery is on fire can be realized. The smoke exhaust system is mainly composed of a smoke hood and an explosion-proof fan. The corrosive gas cannot be discharged outside the base station in time and sufficiently through only the smoke hood and the explosion-proof fan, and the control mode is simple and not suitable for different situations. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the application provides a lithium battery cabinet fire smoke exhaust device and method based on a general base station energy storage system, which fully exhausts smoke to meet the industrial requirements.

[0005] A kind of lithium battery cabinet fire-fighting smoke exhaust device based on general base station energy storage system, including a battery box, multiple lithium batteries being arranged in the battery box, a battery system power supply being connected to the lithium battery, a heat dissipation unit being arranged in the battery box, and a fire-fighting smoke exhaust system being connected to the heat dissipation unit.The heat dissipation unit includes a heat dissipation fan being arranged on the battery box, and a ventilation air valve being arranged on the battery box, the fire-fighting smoke exhaust system includes a central processing unit being arranged in the battery box, and communication unit, temperature detection unit, smoke detection unit, fan control unit, air valve control unit being connected to the central processing unit in turn.The fan control unit is connected to the heat dissipation fan, and the air valve control unit is connected to the ventilation air valve, to control the heat dissipation and ventilation in the battery box.The heat dissipation fan is arranged at the top of the battery box, and the connection between the ventilation air valve and the heat dissipation fan is the diagonal line of the battery box, when the threshold value detected by the temperature detection unit and the smoke detection unit is greater than the set range, the fan control unit in the central processing unit adjusts the speed of the heat dissipation fan, the air valve control unit closes the ventilation air valve, the central processing unit closes the battery system power supply, and the communication unit sends alarm signal.

[0006] Further, the communication unit includes a wireless signal unit being connected to the central processing unit, and a local signal unit being connected to the central processing unit.

[0007] Further, the ventilation air valve is arranged at the bottom of the battery box.

[0008] Further, the smoke detection unit is smoke sensor, and the temperature detection unit is temperature sensor.

[0009] Further, the temperature detection unit is arranged on the battery box.

[0010] A kind of lithium battery cabinet fire-fighting smoke exhaust method based on general base station energy storage system, including the following steps:

[0011] Step S100: provide a lithium battery cabinet fire-fighting smoke exhaust device based on general base station energy storage system, start the heat dissipation unit and fire-fighting smoke exhaust system and battery system power supply, the fan control unit controls the heat dissipation fan, the air valve control unit controls the ventilation air valve to keep open, the temperature detection unit and smoke detection unit detect the temperature and smoke in the battery box respectively, the central processing unit collects the detection data of the temperature detection unit and the smoke detection unit, and central processing unit transmits temperature data and smoke data to external equipment;

[0012] Step S110: When the threshold values detected by the temperature detection unit and the smoke detection unit are both less than the set range, the temperature detection unit and the smoke detection unit transmit the detected data to the central processor, and the central processor controls the cooling fan to be closed and the ventilation air valve to be kept open.

[0013] Step S120: When the threshold values detected by the temperature detection unit are all greater than the set range and the threshold values detected by the smoke detection unit are all less than the set range, the temperature detection unit and the smoke detection unit transmit the detected data to the central processor, and the central processor adjusts the wind speed of the cooling fan through the fan control unit and controls the ventilation air valve to be kept open through the air valve control unit.

[0014] Step S130: When the threshold values detected by the temperature detection unit and the smoke detection unit are both greater than the set range, the fan control unit in the central processor adjusts the wind speed of the cooling fan, the air valve control unit closes the ventilation air valve, the central processor closes the power supply of the battery system, and the communication unit sends an alarm signal.

[0015] Compared with the prior art, the fire smoke exhaust device for the lithium battery cabinet based on the general base station energy storage system provided by the application controls the cooling unit through the fire smoke exhaust system. The central processor in the fire smoke exhaust system is connected with the communication unit, the temperature detection unit, the smoke detection unit, the fan control unit, and the air valve control unit. The fan control unit is connected with the cooling fan, and the air valve control unit is connected with the ventilation air valve, so as to control the opening and closing of the cooling fan and the ventilation air valve. In the fire smoke exhaust method for the lithium battery cabinet based on the general base station energy storage system, the cooling unit, the fire smoke exhaust system, and the power supply of the battery system are started first, the fan control unit controls the cooling fan, the air valve control unit controls the ventilation air valve to be kept open, the temperature detection unit and the smoke detection unit detect the temperature and smoke in the battery cabinet respectively, the central processor collects the detection data of the temperature detection unit and the smoke detection unit, and the central processor transmits the temperature data and the smoke data to an external device. When the threshold values detected by the temperature detection unit and the smoke detection unit are both greater than the set range, the fan control unit in the central processor adjusts the wind speed of the cooling fan, the air valve control unit closes the ventilation air valve, the central processor closes the power supply of the battery system, and the communication unit sends an alarm signal. The fire smoke exhaust device and method for the lithium battery cabinet based on the general base station energy storage system can automatically adjust cooling, reduce fire damage, and improve safety performance. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a fire-fighting smoke exhaust device for a lithium battery cabinet based on a general-purpose base station energy storage system, provided by the present invention.

[0017] Figure 2 for Figure 1 A schematic diagram of the fire smoke exhaust system.

[0018] Figure 3 This is a logic control diagram for a fire smoke extraction method for lithium battery cabinets in a general base station energy storage system.

[0019] Figure 4 This is a flowchart of a fire smoke extraction method for lithium battery cabinets in a general base station energy storage system. Detailed Implementation

[0020] The following provides a more detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0021] like Figures 1 to 2 The diagram shown is a structural schematic of the fire-fighting smoke extraction device for a lithium battery cabinet based on a universal base station energy storage system provided by the present invention. The fire-fighting smoke extraction device for a lithium battery cabinet based on a universal base station energy storage system includes a battery box 1, multiple lithium batteries 2 disposed within the battery box 1, a battery system power supply 3 connected to the lithium batteries 2, a heat dissipation unit 10 disposed within the battery box 1, and a fire-fighting smoke extraction system 20 connected to the heat dissipation unit 10. The fire-fighting smoke extraction device for a lithium battery cabinet based on a universal base station energy storage system also includes other functional modules, such as assembly components and electrical connection components, which should be known to those skilled in the art and will not be described in detail here.

[0022] The battery box 1 is used to house the lithium batteries 2. All of the lithium batteries 2 are connected to the battery system power supply 3. The battery box 1, the lithium batteries 2, and the battery system power supply 3 are all existing technologies and will not be described in detail here.

[0023] The heat dissipation unit 10 comprises a heat dissipation fan 11 arranged on the battery box 1 and a ventilation air valve 12 arranged on the battery box 1. The heat dissipation fan 11 is used to blow out the heat in the battery box 1, and the ventilation air valve 12 is used to allow the cold air outside the battery box 1 to enter the battery box 1. The heat dissipation fan 11, the ventilation air valve 12, and the heat dissipation fan 11 are prior art. In this embodiment, the ventilation air valve 12 is arranged at the bottom of the battery box 1, the heat dissipation fan 11 is arranged at the top of the battery box 1, and the connection between the ventilation air valve 12 and the heat dissipation fan 11 is the diagonal line of the battery box 1, so that the ventilation air valve 12 and the heat dissipation fan 11 correspond to each other. When a fire occurs in the battery box 1, the heat dissipation fan 11 arranged at the top of the battery box 1 can blow out hot air to achieve the purpose of ventilation and cooling.

[0024] The fire-fighting smoke exhaust system 20 comprises a central processor 21 and a communication unit 22, a temperature detection unit 23, a smoke detection unit 24, a fan control unit 25, and an air valve control unit 26 connected to the central processor 21 in sequence.

[0025] The central processor 21 mainly interprets computer instructions and processes data in computer software, which is prior art and will not be described here.

[0026] The communication unit 22 comprises a wireless signal unit 221 connected to the central processor 21 and a local signal unit 222 connected to the central processor 221. The wireless signal unit 221 is a 4G communication device, and the local signal unit 222 is an RS485 or CAN communication mode, so as to transmit the temperature data and smoke data collected by the central processor 21 to external equipment in multiple ways. The wireless signal unit 221 and the local signal unit 222 are devices responsible for communication between the host and the terminal in the computer network, which control all communication channels connected to the remote data equipment. The wireless signal unit 221 and the local signal unit 222 are prior art and will not be described here.

[0027] The temperature detecting unit 23 is used to detect the temperature in the battery box 1, the smoke detecting unit 24 is used to detect the smoke in the battery box 1, the temperature detecting unit 23 and the smoke detecting unit 24 both feed the detected signals to the central processor 21, the smoke detecting unit 23 is arranged on the top of the battery box 1, and the smoke in the battery box 1 can be detected due to the smoke floating. The temperature detecting unit 24 is arranged on the battery box 1, that is, the temperature change of the battery box 1 is sensed. The smoke detecting unit 23 is a smoke sensor, and the temperature detecting unit 24 is a temperature sensor, both of which are prior arts and will not be described here.

[0028] The fan control unit 25 is responsible for the flow management of the cooling fan 11, and the air valve control unit 26 is responsible for the flow management of the ventilation air valve 12. The fan control unit 25 is connected to the cooling fan 11, and the air valve control unit 26 is connected to the ventilation air valve 12, so as to control the opening and closing of the cooling fan 11 and the ventilation air valve 12. The fan control unit 25 and the air valve control unit 26 both control the cooling fan 11 and the ventilation air valve 12 by sending signals through the central processor 21. The fan control unit 25 and the air valve control unit 26 are both prior arts and will not be described here.

[0029] As shown in Figures 3 to 4 FIG. 1 is a structural schematic diagram of the lithium battery cabinet fire smoke exhaust method based on the general base station energy storage system according to the present application. The lithium battery cabinet fire smoke exhaust method based on the general base station energy storage system comprises the following steps:

[0030] Step S100: providing a lithium battery cabinet fire smoke exhaust device based on the general base station energy storage system, starting the cooling unit 10, the fire smoke exhaust system 20, and the battery system power supply 3, the fan control unit 25 controls the cooling fan 11, the air valve control unit 26 controls the ventilation air valve 12 to keep open, the temperature detecting unit 23 and the smoke detecting unit 24 respectively detect the temperature and the smoke in the battery box, the central processor 21 collects the detection data of the temperature detecting unit 23 and the smoke detecting unit 24, and the central processor 21 transmits the temperature data and the smoke data to an external device;

[0031] Step S110: when the threshold values detected by the temperature detecting unit 23 and the smoke detecting unit 24 are both less than the set range, the temperature detecting unit 23 and the smoke detecting unit 24 transmit the detected data to the central processor 24, and the central processor 21 controls the cooling fan 11 to close and the ventilation air valve 12 to keep open;

[0032] Step S120: When the threshold values of the temperature detection unit 23 are all greater than the set range, and the threshold values detected by the smoke detection unit 24 are all less than the set range, the temperature detection unit 23 and the smoke detection unit 24 transmit the detected data to the central processor 21, and the central processor 21 adjusts the wind speed of the heat dissipation fan 11 through the fan control unit 25, and the air valve control unit 26 controls the ventilation air valve 12 to keep open;

[0033] Step S130: When the threshold values detected by the temperature detection unit 23 and the smoke detection unit 24 are all greater than the set range, the fan control unit 25 in the central processor 21 adjusts the wind speed of the heat dissipation fan 11, the air valve control unit 26 closes the ventilation air valve 12, the central processor 21 closes the battery system power supply 3, and the communication unit 22 sends an alarm signal.

[0034] In the step S130, that is, the battery is in a fire state, the ventilation air valve 12 is closed to separate the smoke from other devices inside the base station, so as to avoid causing losses.

[0035] Compared with the prior art, the fire smoke exhaust device for the lithium battery cabinet based on the general base station energy storage system provided by the application controls the heat dissipation unit 10 through the fire smoke exhaust system 20. The central processor 21 in the fire smoke exhaust system 20 is connected with the communication unit 22, the temperature detection unit 23, the smoke detection unit 24, the fan control unit 25, and the air valve control unit 26. The fan control unit 25 is connected with the heat dissipation fan 11, and the air valve control unit 26 is connected with the ventilation air valve 12, so as to control the opening and closing of the heat dissipation fan 11 and the ventilation air valve 12. In the fire smoke exhaust method for the lithium battery cabinet based on the general base station energy storage system, the heat dissipation unit, the fire smoke exhaust system, and the battery system power supply are started first, the fan control unit controls the heat dissipation fan, the air valve control unit controls the ventilation air valve to keep open, the temperature detection unit and the smoke detection unit detect the temperature and the smoke in the battery cabinet respectively, the central processor collects the detection data of the temperature detection unit and the smoke detection unit, and the central processor transmits the temperature data and the smoke data to an external device. When the threshold values detected by the temperature detection unit and the smoke detection unit are all greater than the set range, the fan control unit in the central processor adjusts the wind speed of the heat dissipation fan, the air valve control unit closes the ventilation air valve, the central processor closes the battery system power supply, and the communication unit sends an alarm signal. The fire smoke exhaust device and method based on the general base station energy storage system lithium battery cabinet realize automatic heat dissipation adjustment, reduce fire damage, and improve safety performance.

[0036] The above merely describes the preferred embodiments of the present application and is not used to limit the protection scope of the present application, and any modification, equivalent replacement or improvement within the spirit of the present application is covered within the protection scope of the present application.

Claims

1. A fire smoke exhaust device for lithium battery cabinet of general base station energy storage system, comprising a battery box, a plurality of lithium batteries arranged in the battery box, a battery system power supply connected to the lithium batteries, characterized in that: The fire-fighting and smoke-exhausting device based on the general base station energy storage system lithium battery cabinet comprises a heat dissipation unit arranged in the battery box and a fire-fighting and smoke-exhausting system connected to the heat dissipation unit, the heat dissipation unit comprises a heat dissipation fan arranged on the battery box and a ventilation air valve arranged on the battery box, the fire-fighting and smoke-exhausting system comprises a central processing unit arranged in the battery box and a communication unit, a temperature detection unit, a smoke detection unit, a fan control unit and an air valve control unit connected to the central processing unit in sequence, the fan control unit is connected to the heat dissipation fan, and the air valve control unit is connected to the ventilation air valve to control the heat dissipation and ventilation in the battery box, the heat dissipation fan is arranged at the top of the battery box, the ventilation air valve and the heat dissipation fan are connected by a diagonal line of the battery box, the smoke detection unit is arranged at the top of the battery box, when the threshold values detected by the temperature detection unit and the smoke detection unit are less than the set range, the temperature detection unit and the smoke detection unit transmit the detected data to the central processing unit, the central processing unit controls the heat dissipation fan to be closed and the ventilation air valve to be kept open, when the threshold value of the temperature detection unit is greater than the set range and the threshold values detected by the smoke detection unit are less than the set range, the temperature detection unit and the smoke detection unit transmit the detected data to the central processing unit, the central processing unit adjusts the air speed of the heat dissipation fan through the fan control unit, and the air valve control unit controls the ventilation air valve to be kept open, when the threshold values detected by the temperature detection unit and the smoke detection unit are greater than the set range, the fan control unit of the central processing unit adjusts the air speed of the heat dissipation fan, the air valve control unit closes the ventilation air valve, the central processing unit closes the power supply of the battery system, and the communication unit sends an alarm signal.

2. The lithium battery cabinet fire smoke exhaust device based on the general base station energy storage system of claim 1, wherein: The communication unit comprises a wireless signal unit connected to the central processing unit and a local signal unit connected to the central processing unit.

3. The lithium battery cabinet fire smoke exhaust device based on the general base station energy storage system of claim 1, wherein: The ventilation air valve is arranged at the bottom of the battery box.

4. The lithium battery cabinet fire smoke exhaust device based on the general base station energy storage system of claim 1, wherein: The smoke detection unit is a smoke sensor, and the temperature detection unit is a temperature sensor.

5. The lithium battery cabinet fire smoke exhaust device based on the general base station energy storage system of claim 1, wherein: The temperature detection unit is arranged on the battery box.

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