| 摘要 |
FIELD: fire-fighting, particularly foam delivery equipment. ^ SUBSTANCE: device has cylindrical body, mixing chamber, inlet pipe to supply aqueous foam-generating solution into body, nozzle for aqueous foam-generating solution feeding to mixing chamber, gas supply pipe and conical diffuser located at mixing chamber outlet. Gas supply pipe is installed inside cylindrical body so that inlet gas supply pipe end flush with body end and may define annular nozzle between gas supply pipe and mixing chamber to feed aqueous foam-generating solution into mixing chamber. ^ EFFECT: increased gas saturation rate and increased efficiency of aqueous foam-generating solution mixing with gas in mixing chamber due to gas introduction in core of turbulent foam-generating solution flow. ^ 4 cl, 2 dwg |
