Pump for detecting the yield of groundwater-saving snow-fighting pipe system

摘要

PPROBLEM TO BE SOLVED: To provide a device capable of detecting the pump discharge of the lifting pump for a melting snow pipe system of a groundwater saving type without using a flow meter. PSOLUTION: The pump discharge detection device for melting snow pipe system of groundwater saving type 10 melting the snow by pumping up the groundwater by the lifting pump 11, making it flow through the snow melting pipes 12A, 12B and melting the snow by spraying it from the nozzles 13n1 etc., provided on the spraying spots comprises: the pressure sensor 21 provided direct down stream of the lifting pipe 11 and the computer 22 for calculating the pump discharge QSB0/SBbased on the water pressure PSB0/SBin the snow melting pipe 12A measured by the pressure sensor 21. PCOPYRIGHT: (C)2006,JPO&NCIPI