Fire extinguishing system

摘要

A fire extinguishing system has one or more extinguishing units (1) connected together. A heat detector (2) in each extinguishing unit acts as a device for detecting a fire and as a device for triggering an extinguishing process with the aid of a fire extinguishing device (3), which generates a fire extinguishing aerosol spray during the fire. In addition, an electric ignitor (5) and a pyrotechnic electric generator (4) is in each extinguishing unit, and-if several extinguishing units are provided-each pyrotechnic electric generator (4) is connected via wiring (6) to all ignitors (5) in the other extinguishing units. A sensor element of the heat detector (2) consists preferably of a fusible material or of a material with shape memory characteristics. The fire extinguishing system provides a high degree of operational reliability in detecting fires and in extinguishing fires at initial stages, while maintaining favorable characteristics in stand-by operation.