What is a submersible pump outside!

Submersible pump according to the flow mode of discharge is divided into a submersible pump, submersible water pump mounted outside, semi submersible pump is installed inside, tubular submersible pump. A, what is a submersible pump outside outer pack submersible pump suction liquid complex 10 - 7 shielding submersible pump through the impeller role, directly from the pressurized water chamber outlet, structure design is simple, efficiency is relatively high, figure 10 - 2 is the typical submersible pump outside. In order to improve the cooling condition of submersible pump, often will power the larger shell made jacketed type submersible pump motor, will pump water high liquid is jacketed cooling motor. Within two, what is a built-in submersible pump submersible pump suction conveying liquid, through the impeller flow pressure, cooling oil room, usually surrounded by and through the circular flow of the motor, cooling motor and then make a liquid pump export, the pump efficiency are down a bit, but the use of the pump to increase reliability, typical submersible pump is installed inside. Within half a submersible pump structure characteristics between outside mounted, submersible pump mounted between the two, often parts of the pump outlet pipe through the motor shell, become an organic whole repeatedly with casing to the motor of cooling such as low water submersible pump. Tubular located in external submersible pump, submersible pump motor pump impeller is installed inside the motor rotor, the two become one, as conveying inwall cooling water flow through the motor rotor rotor, motor for water filling type such as filling water submersible pump commonly, outside diameter is larger, high low, good cooling conditions. Regularly review the operation of the submersible electric pump voltage and direct current (dc). Three-phase voltage is measured with a hydraulic pressure gauge should be the ultimate unification, and in 340 ~ 420 v, three-phase direct current is measured with a clip-on dc meters should be the ultimate unification, and 0. Additional direct current (dc) of 5 ~ 1 times. Periodic review of the submersible pump hot insulation resistance. Run back in deformity after 4 ~ 6 h, downtime to motor winding is measured with a megger insulation resistance should be > 0. 5MΩ。 Submersible pumps about short time stopped, do that also should review before using. To review before starting the acuity degree of thermal relay and the rest of the cover installation work whether deformities. Review the cable with and without damage. About oil-immersed submersible pumps, watch for electric pump to the destruction of the cable insulation rubber oil leakage.
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