ESS Fire Detection Logic With HVAC Duct Smoke Verification
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Solution Overview
Problem
Current energy storage systems (ESS) face challenges in accurately detecting and extinguishing fires due to the reliance on single-type smoke detectors, leading to potential false activations and damage to internal components.
Innovation Solution
The implementation of a multi-detection system incorporating smoke detectors, heat detectors, flame detectors, and duct smoke detectors, along with a HVAC system, to accurately identify and respond to fires, ensuring precise operation of the fire extinguisher.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only a smoke detector is used to determine whether a fire occurs, then the fire extinguisher can be operated through the control panel, but smoke unrelated to a fire (e.g., from temperature differences, water vapor, or external sand dust) may be recognized as a fire, causing incorrect operation of the fire extinguisher
Solution Approach 1:
The patent combines multiple types of fire detectors (smoke detector, heat detector, flame detector) into a single fire detection system. The control panel integrates signals from all detector types and only triggers the fire extinguisher when all detectors confirm a fire condition, thereby eliminating false alarms caused by单一 detector misinterpretation of non-fire smoke sources.
Solution Approach 2:
The system implements feedback mechanisms where the control panel continuously monitors signals from multiple detectors and adjusts its decision-making based on corroborating evidence. When smoke is detected, the system seeks additional confirmation from heat and flame detectors before activating the fire extinguisher, creating a feedback loop that prevents premature or incorrect operation.
2Reliability
If multiple types of detectors (smoke, heat, flame) and duct smoke detector are used to determine fire occurrence, then the accuracy of fire detection is improved, but the device complexity increases
Solution Approach 1:
The control panel serves multiple functions: it receives and processes signals from various detector types (smoke, heat, flame), monitors duct smoke detector signals, controls the fire extinguisher operation, and manages the HVAC system. This multi-functionality reduces the need for separate control mechanisms for each detector type, thereby managing system complexity while maintaining high detection accuracy.
Solution Approach 2:
The detection system is segmented into independent detector modules (smoke detector, heat detector, flame detector, duct smoke detector), each responsible for detecting specific fire indicators. This modular segmentation allows each component to be optimized for its specific function while the control panel integrates their outputs, making the overall complex system manageable through clear functional division.
3Productivity
If the HVAC system is used to adjust internal temperature and airflow, then cooling efficiency is optimized, but smoke from fire may be distributed through ducts leading to delayed detection
Solution Approach 1:
The duct smoke detector acts as an intermediary monitoring point within the HVAC system. It detects smoke particles in the air flowing through ducts, providing early fire detection before smoke reaches the battery racks. The control panel receives this duct detector signal and can trigger the fire extinguisher immediately, using the HVAC airflow as a beneficial mediator for both cooling and early fire detection.
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 configuration enhances the reliability and accuracy of fire detection and extinguishment, minimizing false alarms and protecting the ESS components by clearly identifying fire causes and optimizing cooling efficiency.
Implementation Method 1
a smoke detector, mounted in the container
Implementation Method 2
a heat detector, mounted in the container
Implementation Method 3
a flame detector, mounted in the container
Implementation Method 4
a cooling unit located outside the container, to cool the cooling fluid received from the passage space
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
Provided are an energy storage system (ESS) capable of increasing precision of a fire control system to accurately determine and extinguish a fire, and a fire control method of the ESS. The ESS according to the present disclosure includes a container, a heating, ventilation and air conditioning (HVAC) system, and a fire control system, wherein the fire control system includes a fire extinguisher and a control panel, a smoke detector, a heat detector, and a flame detector mounted in the container, and a duct smoke detector mounted in a duct of the HVAC system, and wherein the control panel has a mode for operating the fire extinguisher when all of the smoke detector, the heat detector, and the flame detector detect a fire, a mode for operating the fire extinguisher when the duct smoke detector detects a fire, and a mode for operating the fire extinguisher when a manipulation button is operated.