Vacuum insulation ultralow-temperature medium land conveying device

Abstract

The invention relates to a vacuum insulation ultralow-temperature medium land conveying device. The upper face of the back end of a rotating inner pipe is connected with a liquid-phase connector through a liquid-phase rotating connecting head. A gas-phase connector is fixedly connected to a stand column. The gas-phase connector is connected with a gas-phase channel in the rotating inner pipe. A gas-phase outlet and a liquid-phase outlet are formed in the lower face of the front end of the rotating inner pipe. The gas-phase outlet is connected with a gas-phase valve through a gas-phase rotating connecting head, a gas-phase rotating pipe, a gas-phase worm and gear device, a gas-phase vacuum outer pipe and a gas-phase connector gravity center adjusting pipe. The liquid-phase outlet is connected with a liquid-phase valve through the liquid-phase rotating connecting head, the liquid-phase worm and gear device, a liquid-phase vacuum outer pipe, two liquid-phase rotating connecting heads and a liquid-phase connector gravity center adjusting pipe. The phenomenon of cold loss caused by original assembling and disassembling arm frosting and freezing is avoided, BOG generated by gasifying can be lowered, system circulating processing pressure can be relieved, leakage caused by rotating part low-temperature deforming can be overcome, connector freezing is prevented, connecting speed is improved, disassembling and assembling time is shortened, nitrogen protection is of no need, and operation cost is saved.

Description

technical field [0001] The invention relates to a land transportation device for ultra-low temperature medium, in particular to a land loading, unloading, filling and transportation device for ultra-low temperature media, such as liquid oxygen, liquid nitrogen, LNG and other ultra-low temperature liquids or gases. Background technique [0002] The ultra-low temperature medium land conveying device is used in the loading and unloading process of ultra-low temperature medium, such as liquid oxygen, liquid nitrogen, LNG and other ultra-low temperature gases or liquids. First install the column on the prefabricated foundation, respectively connect the gas phase and liquid phase interface flanges to the pipe network from the tank farm, and finish the installation and commissioning work. When the tank car enters the station for loading, let the tank car stop within the design enveloping range of the device, then pull the handle on the flange pipe of the liquid-phase connecting car...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the phenomenon of cold loss caused by the frosting and icing of the existing unloading arm, reduce the BOG produced by gasification, reduce the pressure of the system cycle treatment, overcome the leakage caused by the low-temperature deformation of the rotating parts, and prevent the interface from freezing, and provides a Vacuum insulation type ultra-low temperature medium land transportation device

Images