Stainless steel submersible pump is a kind of submersible pump, because many submersible pumps are made of cast iron or plastic, if only with these submersible pumps, it is difficult to meet customer needs, such as a lot of corrosive media It can not be discharged, such as sulfuric acid, hydrochloric acid, nitric acid, etc .; This is one of its characteristics. Another feature is that in addition to not rust, but also high temperature. So there are many manufacturers have produced a high temperature stainless steel submersible pumps. Although it is made of stainless steel, there are many auxiliary materials that can not tolerate much higher temperatures. Generally, there is no problem within 120 °. For example, some chemical plants need centrifugal pumps for heat-resisting temperatures of over 200 degrees. QJ series stainless steel submersible pump features: 1, motor, pump - body, dive into the water run, safe and reliable. 2, There is no special requirement on the well pipe, as long as the water pipe can withstand the corresponding pressure. 3, easy to install and maintain easy to use, small footprint, do not need to build pump room. 4, simple structure, saving raw materials. 5, the maximum flow rate can reach 1,000 tons per hour, head can reach 1,500 meters. Use of the environment and conditions: 1, the power frequency of 50Hz, the rated voltage of 380v or 660v (tolerance + -5%) of the three-phase AC power. 2, the solid content (by mass) is not more than 0.01%. 3, was pumped liquid acid shout PH value of 1-14. 4, the transmission medium temperature does not exceed 120 ℃. 5, the water inlet of the pump must be below the moving water level lm, but the diving depth does not exceed 70m of the static water level, and the bottom of the electric pump should be at least lm from the bottom of the well. 6, requires well integrity, wall smooth, well tube not be staggered, if the pool, you need to add a radiator (shroud). Structural features: 1, QJ series wells with submersible pumps, submersible three-phase asynchronous motor and pump composed of two parts. The motor is directly connected with the upper pump body. The upper end of the motor shaft is provided with a reliable shaft sealing device, which can effectively prevent exchange between the coolant in the motor and the pumped medium and ensure long-term safe and reliable operation of the pump. 2, the submersible pump for single-suction multi-stage vertical centrifugal pump; submersible motor water-filled wet, vertical well with submersible motor. Motor and pump through the shaft coupling direct coupling. 3, the motor winding nylon jacket polyethylene waterproof wire. Motor cavity filled with clean water can. 4, the motor bearing water lubricated bearings. The lower part of the motor can not withstand axial pressure force up and down the pump thrust bearing, high-lift pump thrust bearings using nickel-containing copper fan block, and its grinding is imported Feibersi skateboard, to withstand the pump axial force up and down . 5, high-lift submersible pump in the middle of the pump and motor to increase the axial force carrier, the lift can be increased to 900m. Precautions for use: 1, QJ series submersible motor must be filled with clean water before operation, deactivation storage in winter should be discharged net machine water, to prevent frost cracking. 2, regularly check the unit insulation resistance, not less than 0.5 MΩ. 3, the normal use of the warranty period of one year.
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