家用水泵类产品基础培训.ppt

* * * * * * * * Booster pump electronic work the same way as a garden pump (jet pump).  The Booster pump electronic is additionally equipped with a electronic pressure switch and a non-return valve.  When no water is taken out anymore the pressure switch switches off the pump after a chosen follow-up time. The non-return valve protects the pressure line from pressure loss. Even small amounts of water activate the pump immediately. * * * * * * * * * Regarding vibrations Booster pump pressure tank and Booster pump electronic should be acoustically separated by a piece of hose (1) when integrated in a fixed pipe installation. For maintenance purposes a tap (2) each at the suction and the pressure side would be helpful. * * * * * * * * The pump room (1) is filled when the pump sinks under the water surface. The movement of the pump impeller (2) creates water transport from inside to outside. The water is pressed through the outlet hole (3). Multiplex sealings (4) at the motor shaft and the cable feedthrough provide a perfect sealing of the pump motor. The motor cooling is provided by the surrounding water. The machine is switched-on resp. -off by the float switch resp. an aquasensor which is immersed into the water. * * * * * * * * * * * * Calculation example Pool, SCP 16.000: Dimensions: 4x8 m, 1,5 m depth = 48 m3 = 48.000 l 1 ?“ hose with hose end 0,5 m above swimming pool level Beginning: 15.250 l/h, (16.000 + 14.500):2 End: 12.800 l/h Average: 14.000 l/h Time needed: 48.000:14.000= 3.4 hrs * More precise calculation: Beginning: 15.250 l/h, (16.000 + 14.500):2 End: 12.800 l/h Average: 14.000 l/h Time needed: 48.000:14.000= 3.4 hrs But: No hose resistance included! * * * * * * * * * Before starting the pump room (1) should be completely filled with water. The movement of the pump impeller (2) causes a water circuit inside of the pump which leads through the injector (3, Venturi principle). In the process the intake hose (4). This principle is called ?Je