| 摘要 |
FIELD: emergency equipment. SUBSTANCE: invention relates to turbopump sets designed for emergency pumping out liquids from flooded cellars, tunnels, etc., using compressed air as working medium. Proposed portable drainage turbopump has housing, suction and delivery branch pipes, working wheel installed on shaft in housing, pump switch and working wheel drive. Pump is furnished with pneumatic cylinder installed on pump switch axle, float, pneumatic distributor whose supply channel is connected with channel to deliver working medium to pump switch, and outlet channel is connected with pneumatic cylinder and with mechanism providing engagement of float with pneumatic distributor, for instance, with lever. EFFECT: improved reliability of pump in operation. 1 dwg
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