Application of submersible axial flow pump in drainage irrigation project
Jiangsu Binhai County, a total of 1,660 pumping stations, most of which is a large energy consumption of vertical axial flow pump and masonry pump, the total installed capacity of 53,000 kW, a waste of about 15,000 kW, 500 hours of annual run, Each year to waste electricity 7.5 million kWh. In recent years, with the development and application of submersible axial flow pump, the operation guarantee rate is increasing, the flow head is gradually increasing, with the advantages of vertical axial flow pump, which facilitates the use of diving axial flow pump in drainage irrigation project The First, the technical and economic advantages Compared with the vertical axial pump, submersible axial flow pump has the following characteristics: ① compact: submersible motor and axial flow pump connected into a common axis, compact structure, pump and cable with Mechanical seal separated, the pump with a leak and temperature protection device, the unit submersible underwater operation, without lubrication, cooling. ② easy to install: the whole pump hanging into the default wellbore, without complex centering in the center. ③ remote control: no pump room, remote control. ④ easy management: unattended, the machine hanging out of maintenance, no dam drainage, convenient and quick, especially the operation is not affected by the flood season. ⑤ strong adaptability: diving axial pump in the pump station design, construction, operation and management, etc. have a big improvement, adaptability, application prospects. Second, the selection of diving axial flow pump drainage pumping station structure is common for drainage, irrigation and irrigation and drainage combined with three, Figure 1 for the common form of irrigation and drainage combined with the gate control, to achieve mechanical pumping, self-row, irrigation, Function, single irrigation, single row station structure is usually similar to the form
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