| 摘要 |
FIELD: fire safety. ^ SUBSTANCE: signal annunciating fire is created by transformation of starting fire flame pulse into sound signal by means of vapor microexplosion of sensitive element with intensity comparable to sound of gun shot. Sensitive element is arranged in the form of closed tight shell filled with incombustible liquid, in particular with water. Shape, size and material of shell are selected provided that vapor microexplosion of incombustible liquid is arranged within short time, several seconds, after start of shell heating with fire flame. ^ EFFECT: method and device simplification, increased reliability and reduced cost. ^ 4 cl |
