Fountain Pump structure is mainly composed of QJ submersible pump and QS submersible pump. QJ fountain submersible pumpmotor is located in the upper end of the pump, centrifugal impeller, bearing water lubricated rubber bearings, pump and motor shaft coupling with rigid connection. In the upper end of the pump has a check valve to prevent the pump when the outage, caused by backflow of water submersible pump reversal. QS foutian submersible pump motor stator windings polyethylene insulated nylon jacket magnet wire. Motor cavity filled with clean water, to cool and lubricate the motor vehicles bearing the motor inside the rubber film can tune the body to adjust the motor temperature rises due to water expansion and contraction caused by pressure, the upper shaft of the motor is mounted by the rejection sand ring and two reverse-mounted sand trap to prevent water and sediment into the body interior.
Preparation before installation because the pump bearings water lubricated material, and therefore must not dehydrating operation. Even in the short time the starter motor should absolutely avoid running dry, so as not to damage the pump bearings. Check the motor part: to go down before the motor, check its assembly quality is good, the fastener without loosening the cable without damage, and electrical power supply device is reliable. Power supply voltage, frequency and whether the nameplate match; check the rotation of the motor shaft is flexible. And transit without injury, shaft rotation is flexible, the amount of narrow axial whether the requirements of the check valve operates. Before pump into wells, water must be clean (free of sand) filled motor.
Technology of cable connector by the process method (refer to the manual), the motor cable outlet and supporting the external rubber cables connected. Check the winding (including cable outlet) on the base insulation resistance of not less than 200M8. Rotated from the pump well water section of the check is flexible, if stuck phenomenon, should identify the reasons be excluded. The pump and motor are coupled together with screws and good. Installation of equipment and tools required to (1) reliable lifting equipment (such as a small crane) (2) applies wrenches, hand hammers, screwdrivers, electrical tools and megger, clamp meter and so on. (3) cable lashing line.
Installation Pump
(1) of the check valve in the pump connected to a short pipes, pipe clamp in place to install plywood. The pump lifted slowly into the well, until well into the plywood reliable platform, release the hook, the second section of the tube securely connected to the first section of the pipe, fastening screws, and then remove the first pay plywood, as described above, the pump continues to fall, all installed piping (ascending pipe). Finally, the splint in place of the tube, is firmly fixed in the well platform, connected to water elbow (head).
(2) to sneak into the pump should move below the water level, from the bottom of the bottom is not less than 3m, but sneaked into the depth of not more than 70m. Motor section can not be installed to the contact sediment site. Otherwise, the motor because heat is not good, it will overheating.
(3) cable during installation to go down, and should not distort unduly tensioned wire cable applications with each section pipes (ascending pipe) the upper and lower ends of banding together.
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