| 摘要 |
<p>An extinguishing head has a double-flow body (7) including water and gas header, inner gas-nozzle of convergent-divergent profile and inner water-gap of annular cross-section formed by a sleeve (4) situated coaxially around the inner gas-nozzle. The inner water-gap, formed by the sleeve (4), has at its outlet a water-nozzle situated at an angle from 0° to 45°, preferable divergently, towards to the inner gas-nozzle axis and the sleeve (4) makes an inner part of the second gas-nozzle (2) of convergent-divergent profile and annular cross-section situated coaxially towards to the inner gas-nozzle.
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