Battery Fire Penetration Nozzle With Dual-Channel Water Feed
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Solution Overview
Problem
Existing methods for extinguishing lithium battery fires in electric vehicles are inadequate as they often require complex equipment and high-pressure water sprays, which can be dangerous and difficult to implement effectively.
Innovation Solution
A fire extinguishing device with a double channel fluid inlet system that allows independent pressurization of a penetrating tool and nozzle, using low-pressure water to introduce extinguishing fluid into the battery, facilitated by a bellows actuator and sprinkler nozzles for safe and efficient cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-pressure water spray is used to penetrate the battery casing, then the extinguishing fluid can be introduced inside the battery, but the equipment becomes complex and dangerous to operate
Solution Approach 1:
The device is divided into separate functional modules: a penetrating tool with its own actuator and nozzle, and a separate extinguishing system. This allows the penetrating tool to be operated independently at low pressure, eliminating the need for complex high-pressure equipment while maintaining effectiveness.
Solution Approach 2:
The penetrating tool acts as an intermediary device that creates an opening in the battery casing before the extinguishing fluid is introduced. This mediator approach allows low-pressure water to effectively penetrate the battery without requiring complex high-pressure spraying equipment.
2Reliability
If high-pressure water spray is used to penetrate the battery casing, then the extinguishing fluid can be introduced inside the battery, but the operation becomes dangerous and difficult
Solution Approach 1:
By separating the penetrating function from the extinguishing function, the device allows operators to work at low pressure throughout the process. The penetrating tool is actuated by low-pressure water, eliminating the dangers associated with high-pressure operations while maintaining the ability to effectively introduce extinguishing fluid into the battery.
3Temperature
If complex equipment with high-pressure water spray is used, then the battery can be penetrated and cooled, but the extinguishing process becomes difficult to implement effectively
Solution Approach 1:
The device segments the cooling process into two simple steps: first, the penetrating tool creates an opening using low-pressure water; second, the extinguishing fluid is introduced through the created opening. This segmented approach simplifies the overall implementation while maintaining effective battery cooling capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables safe and efficient cooling of lithium-ion battery cells and modules by allowing low-pressure water penetration without complex assembly, reducing the risk of injury and simplifying the extinguishing process.
Implementation Method 1
the actuator comprising a pressure chamber which is facing away from the penetrating tool, wherein the pressure chamber is actuatable with said extinguishing fluid
Implementation Method 2
facilitated by a bellows actuator and sprinkler nozzles for safe and efficient cooling
Data Source
Figure 1~2
Figure 3~4
AI summary
A fire extinguishing device (1) for introducing a pressurized extinguishing fluid, in particular water, into an object to be penetrated, in particular a battery, comprising: at least one longitudinally movable penetrating tool (2), which comprises an extinguishing nozzle (3) which is configured to be flown through by said extinguishing fluid at least when the extinguishing nozzle has been moved inside an object to be penetrated for introducing the extinguishing fluid inside said object; and an actuator (4) configured to move the at least one penetrating tool (2) towards and inside the object to be penetrated, the actuator comprising a pressure chamber (4.1) which is facing away from the penetrating tool, wherein the pressure chamber is actuatable with said extinguishing fluid. The fire extinguishing device (1) comprises a double channel fluid inlet (5) configured to receive extinguishing fluid into separate first fluid channel (6) and second fluid channel (7) arranged in the fire extinguishing device to pass extinguishing fluid respectively to the pressure chamber (4.1) and to the extinguishing nozzle (3) so that the pressure chamber and the extinguishing nozzle are pressurizable independently of each other. A fire extinguishing arrangement and a method.