LOW PRESSURE PUMP FOR FEEDING LNG

摘要

Provided by the present invention is an extremely low temperature and pressure pump for feeding LPG, which is formed to be able to compress LNG at low pressure priorly in order to feed the LNG at sufficiently high pressure. The extremely low temperature and pressure pump of the present invention, capable of applying the predetermined amount of pressure to fluid of an extremely low temperature while dipped in the fluid, comprises: a casing which includes an inlet (IN) into which fluid flows and also includes multiple compression spaces having a larger diameter than the inlet; an inducer which is installed in the inlet of the casing and takes in fluid by rotation; multiple impellers which are supported to be able to rotate in each compression space and apply pressure to the fluid by rotation; multiple diffusers which are fixated on the casing inside the compression spaces and diffuse the fluid applied with pressure by the impellers while maintaining the same pressure; a shaft which is interlocked by connecting the inducer with the center of the impellers; a motor mechanism which rotates the shaft by applying power; an internal manifold which is installed in an end part around the outlet of the casing and guides the fluid passing through the diffusers to multiple outlets formed around the outlet; multiple discharge pipes which are connected to the outlet of the internal manifold and are supported around the outlet of the internal manifold; and an outlet manifold which supports an end part around the outlet of the discharge pipes and has multiple connection parts for guiding the outlet by connecting the multiple discharge pipes.