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Submersible pump is connected to the pump body and the motor, submerged work together to dive a pump, a submersible pump deep well and work two. Deep submersible pump through the cattle in the cable to the motor power, eliminating the need to drive long oil, so compact, light weight, installation, use harsh, in the power area there is a trend to replace long axis well pump, but the containing Large sand wells and no power supply area does not apply. Submersible pump for the auxiliary motor are dry (electric nine all sealed), semi-dry (motor stator seal, the rotor running in the water), oil-filled (motor filled with water to prevent intrusion into the winding) and wet House water, rotor running in the water) and other types. The first three Lee é˜ need to seal and manufacture of high precision installation requirements, because i agricultural deep submersible pumps are usually wet motor, the stator winding water resistant insulated wire or stator winding end and groove pouring synthetic resin, water into the electric few internal Its operation has little effect, the sealing structure can be greatly simplified, only the sand can be required. Some deep well diving summer lift up to 1400m, the maximum flow of l. 4m3 / s. By submersible motor, pump and pumping pipe and other three parts. This pump is widely used in industrial and mining enterprises and urban water supply and drainage engineering protection. The main features of the submersible pump: (1) motor and pump one, eliminating the need for a long special axis, light weight, low price, easy installation and maintenance; (2) motor pumps are submerged underwater, without the need to build the ground Pump room, civil investment is small; (3) due to motor water lubrication and cooling, so maintenance costs low; 4) motor pumps are dive into underwater operation, reducing noise. Model significance: 200 iii 50-52 children. 200 a suitable minimum caliber (mm); QJ a well with submersible pumps; 50 a design flow (m3 / h) i 52 a design head (m);
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