FIELD: fire-prevention facilities.
SUBSTANCE: invention relates to fire fighting equipment, in particular, to devices for blocking fire and combustion products. The fire-prevention barrier comprises a straight-through housing and a composite locking element mounted inside the housing. The composite element comprises a locking element itself and a fire damper. The fire damper is mounted on the locking element and is made wholly or partly of a temperature-resistant material with shape memory effect. The damper has a shape and size which does not cover the opening of the straight-through housing at a temperature below the temperature of the beginning of shape-reconstruction and a shape that completely covers the opening of the housing at a temperature above the temperature of the end of shape-reconstruction.
EFFECT: invention provides reliability improvement of the design that blocks the spread of fire in ventilation systems.
10 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FIRE PREVENTING BARRIER | 2013 |
|
RU2512878C1 |
| SEALED VENTILATION VALVE | 2021 |
|
RU2753384C1 |
| FIRE-RETARDING FLAP | 2001 |
|
RU2195984C2 |
| AUTOMATIC VALVE FOR FIRE-FIGHTING SYSTEM | 0 |
|
SU1417882A1 |
| ANTI-FIRE BARRIER FOR AIRCRAFT FUSELAGE | 2007 |
|
RU2414268C2 |
| INDEPENDENT FIRE-SUPPRESSING APPARATUS | 2001 |
|
RU2198007C1 |
| INTUBATION TUBE | 0 |
|
SU1516118A1 |
| FIRE SAFETY VALVE | 2016 |
|
RU2633276C1 |
| METHOD OF MANUFACTURE OF SPRING FROM MEMORIZED-SHAPE EFFECT ALLOY AND SPRING MANUFACTURED BY THIS METHOD | 2005 |
|
RU2309192C2 |
| INTEGRATED BASEMENT VENTILATION APPARATUS | 2014 |
|
RU2645648C2 |
