What is the use of LNG cryogenic submersible pump?

The role of the LNG cryogenic submersible pump is to act as a power output device for low-temperature media, and it can be used wherever a large amount of low-temperature media needs to be transported quickly. The LNG submersible pump is mainly composed of a deflector, a diffuser, a motor, a main shaft, a bearing and a thrust balance structure. Among them, the pump adopts centrifugal structure, which has the characteristics of high speed, small volume and simple structure of centrifugal pump. The deflector in the submersible pump is used to reduce the resistance of LNG at the suction port, so that the liquid can work at a lower pressure and liquid level, and can also prevent cavitation; the submersible pump will produce certain The centrifugal force and this part of the centrifugal force can be realized by the diffuser vanes in the pump, because the diffuser and the fluid are symmetrical; The motor, the core component of the submersible pump, can be directly cooled because it is immersed in LNG, and it is very safe in an oxygen-free environment. However, because the submersible pump cable is in a low temperature, special design and low temperature resistant materials (poly tetrafluoroethylene) can make the cable work in a good state of -200 degree , so there is no need to use an explosion-proof motor.