Product Details

LNG pump motor is essentially a motor that operates in a sealed cryogenic pump, ie a low temperature motor. Therefore, the following investigations are mainly carried out on low temperature motors, including LNG pump low temperature motors.

The low temperature motors are classified according to the structure of the normal temperature motor, and can be mainly classified into low temperature asynchronous motors, low temperature synchronous motors and other forms of low temperature motors. The basic structure of the low temperature motor is similar to that of the corresponding normal temperature motor. Due to the operation in the cryogenic environment, the material selection and processing technology, electromagnetic design and drive control of the low temperature motor are different from those of the normal temperature motor.

The electromagnetic enthalpy transient finite element model of the low temperature squirrel cage induction motor is used to accurately calculate the transient characteristics of the low temperature asynchronous motor. In addition, scholars shively and Miller pointed out that the low-temperature asynchronous motor design and processing stage needs to consider the low-temperature mechanical properties of the motor material (including the insulating material) and the compatibility of the insulating material with the cryogenic liquid medium such as LNG, and the insulation properties.