Intelligent Fire Extinguishing Device Using Flow Field Data
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Solution Overview
Problem
Current fire extinguishing methods for storage tank fires, such as fixed and mobile devices, face challenges like susceptibility to fire plumes, delayed response times, and low extinguishing efficiency due to dispersion by fire plumes.
Innovation Solution
An intelligent and efficient fire extinguishing device that utilizes internal and external flow field information to determine the optimal spray position, ensuring foam effectively enters the tank by identifying 'air intake channels' and avoiding 'fire plume channels'.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If mobile extinguishing devices are used to spray foam from a distance, then the safety of firefighters is improved, but the foam is easily dispersed by fire plumes and extinguishing efficiency is reduced
Solution Approach 1:
The device uses sensors to detect flow field information including air intake channels and fire plume channels in real-time, and the control system adjusts the spray position and direction based on this feedback to ensure foam is directed into air intake channels where it can effectively enter the tank
Solution Approach 2:
The extinguishing device dynamically adjusts its spray position and orientation based on real-time flow field detection, moving from static spray patterns to dynamic positioning that adapts to the changing fire conditions and flow fields inside the tank
2Speed
If fixed extinguishing devices are used to inject foam directly into the tank, then extinguishing speed is improved, but the devices are highly susceptible to damage from fire plumes
Solution Approach 1:
The device uses flow field information as an intermediary to determine optimal spray positioning, acting as a mediator between the firefighter and the fire to enable precise foam delivery without direct exposure to harmful fire plumes
Solution Approach 2:
The patent replaces manual mechanical positioning with an automated system that uses sensor detection and electronic control to determine and adjust spray position, substituting human judgment and physical positioning with technological systems
3Productivity
If foam is sprayed near air intake channels, then extinguishing efficiency is improved due to rapid foam entry, but the spray position must be precisely determined
Solution Approach 1:
Sensors continuously monitor the flow field and provide feedback on air intake channel locations, enabling the control system to automatically position the spray to target these channels for optimal foam entry
Solution Approach 2:
The system uses its own sensor array to detect and identify air intake channels, and its control system to automatically position the spray without external intervention, making the system self-sufficient in determining optimal spray positioning
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
This approach significantly improves the efficiency of extinguishing storage tank fires, reduces foam usage, and enhances the safety of firefighters by precisely targeting the optimal spray position based on flow field data.
Implementation Method 1
a wind direction and flow field measurement device, a pressure and flow field measurement device. The wind direction and flow field measurement device is installed on an automatic telescopic pipeline and is used to collect external flow field and wind direction information of the burning storage tank
Implementation Method 2
The pressure and flow field measurement device is mounted on the foam nozzle and is used to measure the internal flow field distribution within the burning storage tank, thereby identifying the location of the 'air intake channels'
Implementation Method 3
The foam system is used to spray foam into the burning storage tank. The intelligent sensing system is used to obtain the flow field information inside and outside the burning storage tank and then determines the upwind side of the burning storage tank and the position of the 'air intake channels'
Implementation Method 4
This phenomenon causes a significant amount of oxygen is consumed inside the tank, creating local pressure differentials and forming 'air intake channels' and 'fire plume channels'. The 'air intake channels' (negative pressure) entrain external air into the tank
Implementation Method 5
The fixation system comprises a telescopic rod and an electromagnet adsorption device. The electromagnetic adsorption device is situated at the top of the telescopic rod and is used to adhere to the sidewall of the storage tank
Data Source
AI summary
The intelligent and efficient fire extinguishing device mainly comprises an intelligent sensing system, a power-driven system, an intelligent control system, a foam system, a fixation system, a support lifting system and a protection system. The intelligent sensing system is used to measure the ambient wind direction and the internal flow field of the tank to determine the fire extinguishing location. The intelligent control system controls the power-driven system to reach the designated location based on the intelligent sensing system. The foam system is used to spray foam. The fixation system is used to fix the device. The support lifting system is used to lift or rotate the cooling nozzle and fire-fighting water cannon. The protection system is used to protect the device. The movement, positioning and extinguishing of the fire extinguishing device are unitedly controlled by the intelligent control system. The invention can achieve intelligent fire extinguishment in storage tanks.