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Program-controlled injection strategy used for fire suppression of electrochemical energy storage system

An energy storage system and fire suppression technology, applied to fire alarms and fire rescues based on smoke/gas effects, to achieve long-term temperature suppression, suppression of lithium battery fires, protection and control of explosions

Inactive Publication Date: 2021-09-03
安徽中科久安新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a fire suppression program-controlled injection strategy for electrochemical energy storage systems to solve the problems encountered in the above-mentioned background technology

Method used

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  • Program-controlled injection strategy used for fire suppression of electrochemical energy storage system
  • Program-controlled injection strategy used for fire suppression of electrochemical energy storage system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, such as figure 1 and 2 As shown, a program-controlled injection strategy for electrochemical energy storage system fire suppression includes the following steps:

[0028] S1. Install the composite sensing fire monitoring module 5 and fire extinguishing system inside the battery prefabricated cabin. The fire extinguishing system is connected to the fire alarm controller, and the distribution valve 3 is installed on the top of each battery module;

[0029] S2. After the composite sensory fire monitoring module 5 sends out an alarm signal, the battery failure and the failure location are quickly known through the composite sensory fire monitoring module 5;

[0030] S3. The linkage fire alarm controller opens the corresponding distribution valve 3, quickly starts the fire extinguishing system, quickly extinguishes the fire and continuously cools down the fire location where the battery thermal runaway occurs, and prevents the battery from re-igniting.

[0031] ...

Embodiment 2

[0043] Embodiment 2. On the basis of Embodiment 1, an infrared flame detector 1 is installed inside the battery prefabricated cabin. When the infrared flame detector 1 detects that an open flame in the prefabricated cabin reaches the third-level alarm threshold, it is an electrical fire, and the linkage The fire alarm controller opens the distribution valve 3 on the top of the corresponding prefabricated cabin, starts the energy storage fire fighting host 4, and the perfluorohexanone fire extinguishing agent is sprayed through the atomizing nozzle on the top of the prefabricated cabin. When the concentration of the steam of the fire extinguishing medium is 4%-6% by volume, a good fire extinguishing effect can be achieved, and the fire extinguishing concentration can be reached in the battery prefabricated cabin after spraying for 8 seconds.

[0044] Further, when the infrared flame detector 1 detects an open flame and the local temperature exceeds the threshold, a three-level a...

Embodiment 3

[0045] Embodiment 3, on the basis of Embodiment 1, a temperature detector, a smoke detector and an infrared flame detector are also provided in the battery prefabricated cabin, and the temperature detector, the smoke detector and the infrared flame detector communicate with each other respectively Connected to the fire alarm controller. The detection value of combustible gas and temperature in the cabin by the fire detection module reaches the second-level alarm and outputs an alarm linkage signal. When the infrared flame detector detects an alarm, the linkage fire alarm controller outputs a third-level alarm signal to start the fire extinguishing system.

[0046] Further, the above solution also includes a remote video monitoring system for remote video monitoring of the operation of the battery prefabricated cabin. When the system control cabinet is powered off, the remote video monitoring system manually judges the fire stage, and remotely activates the fire extinguishing sy...

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Abstract

The invention relates to a program-controlled injection strategy used for fire suppression of an electrochemical energy storage system. A composite sensing fire monitoring module and a fire extinguishing system are mounted in a battery prefabricated cabin, the fire extinguishing system is connected with a fire alarm controller, and a distribution valve is mounted at the top of each battery module; when the composite sensing fire monitoring module sends out an alarm signal, the composite sensing fire monitoring module can rapidly acquire failures and failure positions of batteries; and the fire alarm controller is linked, the corresponding distribution valves are opened, the fire extinguishing system is quickly started, the fire position where the battery thermal runaway occurs is quickly extinguished and continuously cooled, and the batteries are prevented from reburning. According to the program-controlled injection strategy, a grading early warning mechanism is combined with a perfluorohexanone fire extinguishing agent to cooperate with the program-controlled injection strategy to achieve the fire extinguishing system, the lithium battery fire can be effectively suppressed, the characteristics of accurate positioning, efficient fire extinguishing, continuous cooling and environment friendliness are achieved, and electrical equipment is protected and explosion is controlled to the maximum extent through the grading linkage control signal strategy.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing, in particular to a program-controlled injection strategy for fire suppression in an electrochemical energy storage system. Background technique [0002] With the development of society, energy storage power stations are an important part of electricity use. In recent years, the energy storage industry has developed rapidly, and the large-scale commissioning of grid-side projects has brought about changes and opportunities in the industry, and the scale of electrochemical energy storage commissioning has continued to increase. However, lithium-ion batteries are extremely prone to thermal runaway combustion due to their high energy density and flammable and explosive material systems. Lithium battery fire is a process of heat accumulation. After the battery thermal runaway releases a large amount of organic substances, including CO, H 2 Such as flammable and toxic gases, the working e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C3/16A62C31/05A62C37/38G08B17/10
CPCA62C3/16A62C31/05A62C37/38G08B17/10
Inventor 李煌姜可尚葛磊张艺超张清朋
Owner 安徽中科久安新能源有限公司
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