How to select the acidproof alkali rotor pump motor

A lot of friends in acid and alkali corrosion resistance of choose and buy rotor pump products, considering the motor is not very care about, today for you talk about how to select the acidproof alkali rotor pump motor. 1 motor type and type of installation 1) three-phase ac asynchronous motor rotor resistance to acid and alkali pump is three-phase ac asynchronous motor pumps used ac induction motor in chemical, petrochemical and other industrial equipment of main engine, it has a simple structure, reliable operation, convenient maintenance, cheap. The advantages of compact volume, starting the operation is simple. Suitable for the occasion of constant torque and speed requirements. 2) www.facebook.com/dongfeng.motor three-phase ac synchronous motor will have special excitation system of synchronous motor, lip ring, or rectifier, the consumption of copper and iron material increase, the price is high maintenance quantity is big, so the few, generally used in low speed. Under the condition of large power, power factor is also used for higher or for higher power system power factor, etc. 3) has produced sparks and wear different dc motor dc motor commutator segment, need to configure the dc power supply as well as a number of similar to that of the synchronous motor motor part faults.

 Commonly used in stepless speed regulation or only dc power occasion. The main basis of 2 choose motor (1) according to the mechanical load properties and production technology of motor starting, braking, motion and speed requirements, such as choosing motor type. (2) according to the load torque, rotational speed range deterioration degree of frequent starting requirements, considering the motor temperature rise deteriorated starting speed torque limit, overload ability, reasonable choose motor capacity, and to determine the cooling ventilation mode. (3) use a room according to the environmental conditions, such as temperature. Humidity, dust, rain water, gas and corrosive and flammable and explosive gas, considering the structure of necessary protection way and motor, the voltage rating of the motor is determined. (4) according to the enterprise standard and the power factor of power grid voltage requirements, determine the voltage rating of the motor. 5. According to the maximum speed of sound field machinery and the transition process of electric drive speed regulation system performance requirements, as well as the complexity of the mechanical reduction, choose the rated speed of the motor. In addition, the choice motor must also conform to the requirements of the energy saving, consider running reliability, availability, spare part commonality, easy installation and maintenance, product price, construction cost, operation and maintenance cost, etc. 3 motor type selection The choice of motor type should be from the load characteristics and energy saving two angles to consider. Rotor pump its "a torque speed" is a constant torque characteristic; Centrifugal pump vane pump, such as square torque characteristics, namely the torque increases with the increase of rotational speed square relations.