Protecting the Vessel: Explosion Venting
When a deflagration occurs, vent panels serve as the weak point of the enclosure and provide a pathway for expanding pressures and flames to escape. Preferably vent panels are installed on the silo roof to minimizing the impact on the fillable silo volume and preventing recoil forces causing structural damage during an explosion event.
Explosion venting is relatively inexpensive compared to other protection methods and requires little maintenance, but a large external exclusion zone must be present and post-explosion fires may take place inside the silo.
If a sufficient external exclusion zone is not available or when the silo is installed indoors flameless venting may provide a potential solution. A flameless venting device is placed on top of the explosion vent panel and contains a flame filter that extinguishes the explosion flames. An integrated dust retention screen prevents unburnt fuel from being discharged preventing secondary explosions to take place outside the silo.
Additional vent accessories such as weather covers are available to allow installation in even the harshest conditions. Hygienic explosion vents are also available for food storage silos where CIP cleaning is applied.
Keywords
top
post
place
impact
Vessel
pathway
pressures
enclosure
silo roof
weak point
vent panels
unburnt fuel
flame filter
installation
CIP cleaning
deflagration
recoil forces
weather covers
explosion event
explosion fires
explosion flames
structural damage
Explosion Venting
potential solution
little maintenance
food storage silos
harshest conditions
secondary explosions
fillable silo volume
explosion vent panel
flameless venting device
Hygienic explosion vents
other protection methods
Additional vent accessories
large external exclusion zone
integrated dust retention screen
sufficient external exclusion zone
