| 摘要 |
FIELD: fire safety.SUBSTANCE: in fire extinguishing module comprising a housing made of profiled steel bands, in which a cylinder with a siphon tube is vertically mounted, divided by the liquid level to liquid and gas volumes, and filled with the extinguishing liquid which is under pressure of the compressed gas, the pressure switch. At the outlet from the cylinder the lock-start gear of the pyrotechnic type is mounted, electrically connected through the control unit to the smoke detectors and a hydraulic sprayer connected to the siphon tube, and the siphon tube is made of constant cross section with a diffuser at its end facing towards the bottom of the cylinder, and the pressure switch is mounted on upper part of the cylinder, in which is the gas injection nozzle is mounted having at the end located in the gas volume of the cylinder the check valve, and the sprayer comprises a hollow housing in the form of a sphere on which the inlet and outlet throttling element is placed. The housing is located between the pipe and the cage, fixing it in a way that the plane of the inlet of the housing is located perpendicular to the axis of symmetry of the pipe and the cage. The outlet throttling element is made in the form of cylindrical orifices, uniformly located on the spherical surface of the housing, the axes of which are located on radial lines that connect the centre of the spherical surface of the housing with the centre of the hole. The coefficient of perforation of the perforated spherical surface of the housing is in an optimum range of values of 0.5÷0.8.EFFECT: improvement of efficiency of fire extinguishing by increasing the operational speed. |
