How does Hot Aerosol achieve rapid automatic activation and efficient fire suppression without power or pressure vessels?
Publish Time: 2025-11-14
In the field of modern fire safety, traditional fire suppression systems are often unsuitable for fire protection in confined spaces such as electrical cabinets, server chassis, new energy vehicle battery compartments, and elevator control boxes due to their large size and the need for external power sources or high-pressure storage tanks. Hot Aerosol is an innovative product designed to address this pain point. It requires no power source, no piping, and no pressure vessels; it automatically activates at the initial stage of a fire using only its own heat-sensitive element, releasing a highly efficient fire extinguishing medium within seconds, achieving fully autonomous protection through "self-sensing, self-response, and self-extinguishing." Its core secret lies in the perfect combination of a unique thermally triggered chemical reaction mechanism and nano-level aerosol fire extinguishing technology.1. Passive Automatic Activation: Intelligent Response Relying on Ambient HeatThe core of Hot Aerosol lies in its built-in heat-sensitive activation element, typically composed of low-melting-point alloys or heat-sensitive explosives. When an abnormal temperature rise occurs within the protected space due to an electrical short circuit, overload, or battery thermal runaway, reaching a preset threshold, the thermistor rapidly melts or ignites, triggering an exothermic chemical reaction of the internal solid extinguishing agent. The entire process is completely passive, relying on no external power source, sensor, or control system, truly achieving "zero power consumption, maintenance-free, and fully automatic." This design greatly enhances reliability—even in the event of a power outage, network interruption, or human negligence, it can still respond to a fire immediately.2. High-Efficiency Extinguishing Mechanism: Chemical Chain Inhibition of Aerosol ParticlesThe extinguishing agents used in Hot Aerosol are mostly nitrate complexes containing strontium, potassium, or lithium. Once thermally triggered, the agent undergoes a controlled combustion reaction within the sealed cavity, instantly generating a large amount of aerosol smoke primarily composed of nano-sized metal oxide particles and inert gases. These particles typically have a diameter between 0.01 and 1 micrometer and can remain suspended in the air for extended periods, penetrating deep into the core of the flame. Its extinguishing mechanism is primarily chemical inhibition: active free radicals such as potassium ions capture H⁺ and OH⁻ free radicals in the flame that sustain the combustion chain reaction, interrupting the combustion reaction; simultaneously, the particles absorb heat and cool the area, and the inert gas dilutes the oxygen concentration, forming a dual "chemical + physical" extinguishing effect. Experiments have shown that its extinguishing efficiency is 5–10 times that of Halon 1301, and it can extinguish initial Class A, B, and C fires within 3–10 seconds.3. Clean, Environmentally Friendly, and Safety CompatibleUnlike dry powder extinguishing agents, hot aerosol leaves almost no residue after release. The particles settle naturally and are non-conductive and non-corrosive, preventing damage to precision electronic components. Its decomposition products are mainly carbonates and nitrogen gas, free of persistent pollutants such as halogenated hydrocarbons and PFAS, complying with RoHS and REACH environmental regulations, and is hailed as a "green extinguishing technology." Furthermore, the device itself is stored as a solid at atmospheric pressure, eliminating the risk of explosion during transportation and installation. It is lightweight and compact, allowing for direct mounting on the top of a cabinet or next to a battery module, making installation extremely simple.4. Precisely Adaptable to Confined SpacesHot Aerosol's design philosophy is precisely "small space, fast response, full coverage." Its protection volume is typically 0.1–2 cubic meters, making it particularly suitable for scenarios where cabling is difficult to implement, such as server chassis, UPS power cabinets, charging pile interiors, and electric bicycle battery boxes. Due to the aerosol's extremely strong diffusion and penetration, it can bypass partitions or cable obstructions and cover the entire space, achieving fire suppression without blind spots.Through a heat-sensitive self-starting mechanism and highly efficient nano-aerosol fire extinguishing technology, Hot Aerosol achieves rapid, clean, and reliable fire suppression in confined spaces without power or pressure vessels. It is not only a miniaturized breakthrough in fire protection technology but also a vivid embodiment of the "inherent safety" concept—protecting the most critical equipment with the simplest structure, building an invisible firewall for the safe operation of smart cities, new energy transportation, and data centers.
