Vacuum valve bank box for LNG (Liquefied Natural Gas) liquid-adding machine

Abstract

The invention discloses a vacuum valve bank box for an LNG (Liquefied Natural Gas) liquid-adding machine, which comprises a box body, wherein a pipeline and a valve are arranged in the box body; the pipeline is connected with an overhaul pipe which extends out of the box body; the vacuum valve bank box for the LNG liquid-adding machine is characterized in that the box body adopts a vacuum and sealed structure; an interlayer is arranged in the box body; the inner surface of the interlayer adopts a multilayer structure made of heat-insulating materials; a sealed vacuum cavity is defined by the inner wall of the interlayer and the outer wall of the box body; the vacuum cavity is filled with pearlife uniformly; the pipeline and the valve are mounted in the vacuum cavity; the pipeline and the valve are wound and wrapped with anti-radiation materials. The box body structure adopted by the vacuum valve bank box for the LNG liquid-adding machine, provided by the invention, integrates the pipeline and the valve, so that the inner space of the liquid-adding machine is utilized reasonably and the heat-insulating space is enlarged; as the multilayer structure is adopted, multilayer heat-insulating materials and heat-insulating pearlife are mixed to form the interlayer, the advanced anti-radiation materials are adopted and a vacuum state is kept, so that the cold loss can be controlled to the lowest limit, and the liquid-adding and heat-insulating requirement of the LNG liquid-adding machine can be satisfied.

Description

technical field [0001] The invention belongs to the technical field of liquefied natural gas applications, and in particular relates to a vacuum valve group box of an LNG filling machine. Background technique [0002] The large-scale industrial gas market, which is dominated by low-temperature liquefied gases such as liquefied natural gas, develops rapidly at a rate of more than 10% every year. The transportation of these low-temperature liquids in the use area is mainly carried out through low-temperature stainless steel pipes. Due to the limitation of the installation space of the liquid filling machine itself, the length and specifications of the vacuum pipelines that can be made are limited, and the control valves in the liquid filling machine also need Insulation requires high requirements on the internal layout of the dosing machine. At present, the cooling loss is reduced by insulating the pipes and valves in the dosing machine. Frosting, long-term use will cause dam...

AI Technical Summary

Problems solved by technology

The transportation of these low-temperature liquids in the use area is mainly carried out through low-temperature stainless steel pipes. Due to the limitation of the installation space of the liquid filling machine itself, the length and specifications of the vacuum pipelines that can be made are limited, and the control valves in the liquid filling machine also need Insulation requir

Images