Overview of Patch-Type Thermal Aerosol Fire Suppression Devices

I. Scope of Application:

This specification applies to the brand and model manufactured by our company. QRR0.012G/S-ZY， QRR0.03GW/S -ZY，QRR0.01GW/S-ZY，QRR0.06GW/S-ZY Type aerosol fire-extinguishing device.

II. Content and Explanation:

This product specification defines the product’s technical requirements, test methods, marking, labeling, packaging, and transportation. Transmission and storage requirements. This specification applies to design qualification and shipment inspection, and serves as the basis for quality verification during production inspection, type‑approval testing, and conformity‑of‑quality inspection.

III. Reference Standards:

GB50370-2005  Code for Design of Gas Fire-Extinguishing Systems

GA   499.1-2010   Aerosol fire suppression system   The  1  Section: Thermal Aerosol Fire Extinguishing System

GB50116-2008  Code for Design of Automatic Fire Alarm Systems

GB7258—2012   Technical Requirements for the Safe Operation of Motor Vehicles

GBT3730.1-2001  Terms and Definitions for Vehicle and Trailer Types

GBT15089-2001  Classification of Motor Vehicles and Trailers

IV. Product Features:

This device employs gas-based fire suppression technology and, in accordance with national and industry standards, is designed for automotive engine compartments and electric vehicles. Developed through extensive experimentation to address the unique environmental conditions inside automotive battery compartments, high- and low-voltage switchgear cabinets, bank ATMs, and similar spaces, this system delivers exceptionally robust automatic fire suppression, effectively preventing fires in enclosed or semi-enclosed areas. Product.

V. Product Features:

5.1 The extinguishing agent of a thermal aerosol fire suppression system is a solid energetic chemical substance, classified as a pyrotechnic composition. By initiating the activation of the extinguishing agent through an oxidation-reduction process, a chemical reaction is triggered, generating a large volume of inert gas, Water vapor and trace solid particles form a mixed gas, which is discharged from the nozzle of the automatic fire suppression system. It is discharged to generate a large quantity of aerosols (a mixed smoke), which suppress the combustion reaction of the fire and thereby achieve the purpose of extinguishing it.

5.2 The fire-extinguishing mechanism of automatic fire suppression systems combines physical, chemical, and vapor‑cooling extinguishing methods. The total flooding fire suppression method employed:

a , by physically diluting oxygen in the air “ Asphyxiation fire suppression ” Primarily by interrupting the flame’s reaction chain and disrupting the chain reaction, it eliminates the combustion conditions at the fire scene, rapidly reducing the concentration of free radicals.

b 、  There exists a chemical fire-extinguishing method that inhibits the progression of chain‑reaction combustion.

c , Condensation and vaporization of water vapor lower the temperature of the burning material.

5.3 The aerosol (smoke) generated after the fire suppression system is activated is non-toxic, environmentally friendly, non-corrosive, and does not deplete the atmospheric ozone layer. ODP   The value is  0， GWP   The value is close to  0 );

5.4 The fire suppression system, when networked with the fire alarm control panel, enables high-speed, highly efficient, and comprehensive fire suppression.

5.5 It can support multiple devices connected via wired networks, ensuring that the protected area is not affected by cable length.

5.6 The system features a pipeless design and requires no pressure vessels, actuators, valves, or piping, thereby reducing both floor space and installation costs.

5.7 The fire‑extinguishing system features solid‑state storage with no leakage, operates at atmospheric pressure, and is safe, reliable, and easy to store and transport.

5.8 , Scope of Application

The thermal aerosol system is a total flooding system, suitable for extinguishing fires in relatively enclosed spaces.   A 、 B   Class A fires and incipient electrical cable fires.

a , extinguish   A   Class A fires: such as initial fires involving solid materials like wood and paper, are suitable for storage facilities for wooden products, archives, museums, libraries, and data rooms, among other locations.

b. Extinguish   B   Class of fire:   Applicable to the production, use, or storage of diesel fuel ( -35   (excluding No. diesel), heavy Fires in areas containing Class C flammable liquids, such as petroleum, transformer oil, animal fats, and vegetable oils;

c. Extinguishing Electrical Cable Fires:   It is suitable for fire protection in substations and distribution rooms, generator rooms, cable interlayers, cable shafts, cable trenches, computer rooms, telecommunications rooms, and similar facilities.

5.9、  Scope of Non-Applicability

Thermal aerosol automatic fire suppression systems shall not be used to extinguish fires involving the following substances:

a Chemical substances that can rapidly oxidize even in the absence of air, such as nitrocellulose and gunpowder.

b , reactive metals such as potassium, sodium, magnesium, titanium, zirconium, uranium, and plutonium.

c Compounds that can decompose on their own, such as certain peroxides and hydrazine.

d , metal hydrides, such as potassium hydride and sodium hydride.

e   Substances that can spontaneously ignite, such as phosphorus.

f , strong oxidizing agents, such as nitrogen oxides and fluorine.

5.10、  Inapplicable Locations

a , commercial establishments, food and beverage services, entertainment venues, and other densely populated areas ;

b , Areas for storing flammable and explosive materials.

VI. Performance Parameters:

FAQ for Potted Aerosol Fire Extinguishing Devices

Q: What types of facilities are suitable for patch-type aerosol fire suppression systems?

A: Suitable for use in confined, enclosed spaces such as distribution cabinets, energy storage battery enclosures, terminal boxes, and small control cabinets; capable of extinguishing Class A, B, and C fires, as well as energized electrical fires.

Q: What is the fire-extinguishing mechanism of aerosol-based fire suppressants?

A: After the device is activated, it generates high-temperature aerosol particles that rapidly inhibit the combustion chain reaction, extinguishing fires in enclosed spaces within a short period of time.

Q: What are the activation methods for plug-in aerosol fire suppression systems?

A: It supports automatic activation via a temperature-sensing element and can also be connected to a fire detection system for electrically controlled activation; the triggering method can be selected based on protection requirements.

Q: What are the advantages of patch-type aerosol devices compared to traditional floor-standing and suspended aerosol units?

A: Compact and lightweight, it features surface-mount technology, occupying minimal space and allowing direct mounting inside the cabinet for flexible and convenient installation.

Q: What precautions should be taken when installing a patch-type aerosol device?

A: Ensure secure mounting, and aim the spray nozzle at areas prone to ignition. Keep the spray outlet unobstructed to allow the aerosol to disperse evenly throughout the protected space.

Q: What items should be checked during routine inspections and maintenance?

A: Inspect the equipment enclosure for damage or deformation, and verify that the leads are intact and free from aging or breakage. Pressure monitoring is not required; only periodic visual inspections are necessary.

Q: Will the aerosol discharge damage the electrical components inside the cabinet?

A: After extinguishing the fire, solid particulate residues may remain, which can be mildly corrosive. In environments with precision and valuable electronic equipment, careful selection of the extinguishing agent is essential, and post‑fire dust must be thoroughly cleaned up.

Q: Can the device be reused after it has been discharged?

A: This is a single-use fire suppression product; once the discharge mechanism is activated, it becomes inoperable and cannot be reused. The entire unit must be replaced with a new one.

Q: Can this device be used in humid environments?

A: Prolonged exposure to high-humidity environments can accelerate the aging of the enclosure and wiring, reducing reliability. In humid conditions, it is necessary to select corrosion‑resistant models accordingly.

Q: Do plug‑in aerosol fire‑extinguishing devices meet the acceptance requirements for fire‑protection projects?

A: The product is accompanied by a fire‑safety inspection report, complies with applicable standards, and, upon installation, can be integrated with the protected area to facilitate the overall fire‑safety acceptance process.