Dry Powder Fire Extinguishing System for Wind Power Applications

Product Overview of Wind Power–Specific Dry Powder Fire Extinguishing Systems

I. Overview

FFX-AC F X/ZY The wind‑power‑specific dry‑powder fire‑extinguishing device (hereinafter referred to as the “extinguishing device”) is a next‑generation, highly efficient and environmentally friendly firefighting product. It is charged with… ABC Ultra-fine dry powder extinguishing agent is non-toxic and harmless, does not corrode protected materials, is non-irritating to human skin and respiratory tract, and delivers rapid, highly efficient fire suppression.

This fire suppression system features a simple structure, reliable performance, and convenient installation and maintenance. It can be used for total flooding in enclosed spaces as well as for localized suppression in open areas, making it an ideal automatic fire‑extinguishing solution for wind turbine nacelles.

Standards for the Production and Testing of Fire Extinguishing Equipment GA602-2013 Dry Powder Fire Extinguishing System

II. Scope of Application

1 . Firefighting A Class A fires: such as fires involving combustible solids like cotton, wood, hemp, paper, rubber, plastics, and tobacco.

2 . Firefighting B Class A fires: such as fires involving flammable liquids like crude oil, heavy oil, diesel, gasoline, and organic solvents, as well as combustible solids that can melt.

3 . Firefighting C Class C fires: such as fires involving flammable gases like coal gas, natural gas, acetylene, and others.

4 . Firefighting E Class A fires: such as fires involving energized equipment in computer rooms, substations, cable tunnels, cable trenches, and power compartments within urban utility tunnels.

This device is not suitable for extinguishing fires involving the following substances:

1. Chemical substances such as nitrocellulose, explosives, nitrogen oxides, and fluorine, which can undergo oxidation reactions even in the absence of air, together with oxidizing agents;

2. Reactive metals such as potassium, sodium, magnesium, titanium, and zirconium, as well as their hydrides.

III. Composition of the Fire Extinguishing System

The fire-extinguishing device is an integrated unit comprising ultra-fine dry powder extinguishing agent, an electric initiator, a solid‑gas conversion agent, a pressure‑rated steel housing, a six‑pronged nozzle, an aluminum diaphragm, and a mounting bracket.

  4. Model and Main Performance Parameters

1 , Model and Main Performance Parameters Table ( 1 )

V. Operating Principle

1 , Fire-extinguishing principle

When the fire suppression system receives an activation signal, the solid‑gas conversion agent is triggered, causing the gas inside the container to expand rapidly and the internal pressure to rise. This pressure ruptures the nozzle diaphragm, propelling an ultrafine dry powder into the protected area, where it quickly disperses in all directions, establishing a total flooding extinguishing effect. Under the continuous physical and chemical action of the ultrafine dry powder, the flames are extinguished.

2、 Fire suppression system activation methods

The device is simple and reliable to operate, offering two control modes: manual and system‑interlocked.

( 1 ) Manual start

When the fire suppression controller is set to the “Manual” position, the fire suppression system operates in manual mode. In the event of a fire in the protected area, manually pressing the start button on the fire suppression controller or on the manual control panel will activate the system to discharge the extinguishing agent and suppress the fire.

After the fire‑extinguishing device’s initiating mechanism is powered on, it activates the impact mechanism, which shatters the glass bulb and opens the nozzle to discharge the extinguishing agent, thereby suppressing the fire.

After the fire alarm control panel issues a start command, or after the start button is manually pressed, during the set delay period… 30s During this period, if personnel determine that no fire has occurred or that the fire has already been extinguished, they may press the emergency stop button to halt the activation of the fire suppression system.

( 2 ) System Integration (Automatic Startup)

When the fire suppression controller is set to the “Automatic” mode, the fire suppression system operates in automatic control. Upon detection of a fire in the protected area, the controller, having confirmed the occurrence of a fire, automatically activates the fire suppression system to discharge the extinguishing agent and initiate fire suppression.

After the fire‑extinguishing system’s initiating device is powered on, it activates the impact mechanism, which shatters the glass bulb and opens the spray nozzle to discharge the extinguishing agent, thereby suppressing the fire.

VI. Installation of Fire Extinguishing Systems

( 1 ) Installation and Operation Instructions for Wind Power–Specific Dry Powder Fire Extinguishing Systems

1 • During product transportation, handling, and storage, dropping and rough loading/unloading are strictly prohibited.

2 The fire suppression system must not be serviced while energized. If maintenance is required, the system’s power supply must be disconnected, and the system’s activation circuit must be shorted.

3 , The safety current for the electrical start-up of the fire-extinguishing system shall not exceed 150m A ;

4 , Task testing is prohibited without the authorization of the manufacturer’s representative;

5 , Verify that the internal supply components in the inspection report are complete;

6 , Check whether the device leads are shorted;

( 2 ) Installation Method for Wind Power–Specific Dry Powder Fire Extinguishing Systems

1. The installation methods for fire suppression systems are as follows:

Insert the expansion screw ( M10 ) Secure the fixture to the precast concrete slab above the protected area, then insert the mounting base of the fire suppression device into the mounting bracket and fasten it with screws, as shown in the figure.

7. Inspection and Maintenance of Fire Extinguishing Systems

1. The user unit shall establish a maintenance management system and assign dedicated personnel to conduct regular inspections.

2. Fire extinguishing systems shall be inspected at least once every six months. Once a fire extinguishing system has been activated, it must be replaced.

3 The extinguishing agent used during refilling must be ABC Ultra-fine dry powder extinguishing agent, and shall comply with GB4066 -2017 Requirements.

4.   Maintenance of fire-extinguishing equipment must be performed by a specialized manufacturer approved by the public security fire supervision authority.

5.   Under normal conditions, the service life of the fire suppression system is 10 Year.