FIRE PROTECTION VALVE Russian patent published in 2013 - IPC F16K17/19 A62C4/02 

FIELD: machine building.

SUBSTANCE: safety hydraulic valve contains housing with lead, cup, casing and drain holes. Housing consists of two parts: lower cylindrical and upper, coaxial with it, conical, on which a lid with integrated fire safety device is installed. On the lid there mounted are annular air offtake and assembling bolts. In the lower part of housing there mounted is a cup consisting of upper conical cup and lower cylindrical cup. In upper part of housing there mounted is cylindrical casing with expanding egg-shaped pipe closed by screen and provided with exhaust hole. Casing is fixed in upper part of housing by means of inclined partition with drain hole located in upper part of housing. Fire safety device is designed as a pack consisting of parallel lattices on which a head piece is. Head piece is designed as hollow balls with spiral groove cut and spiral lines on their spherical surface. Or the head piece is designed as cylindrical rings with spiral groove cut and spiral lines on their side surface. In both versions of head piece design profile of section perpendicular to spiral line is of type of sphere or mesh circuit, or Berl saddle, or Intaloks saddle.

EFFECT: increasing the protection efficiency of process equipment against explosions by speedup and reliability of actuation.

5 dwg