Ultralow temperature valve with sealing mechanism

Abstract

The invention belongs to the technical field of ultralow temperature valves. The invention comprises a lower base, an upper base, a shell plate and a shell cover, wherein the upper base is fixed to the upper surface of the lower base, the shell plate is fixed to the upper surface of the upper base, the shell cover is fixed to the upper surface of the shell plate, a plurality of spherical grooves are formed in the upper surface of the lower base, first guide holes are formed in the bottom ends of the spherical grooves, the first guide holes are round blind holes, a plurality of spherical grooves are formed in the lower surface of the upper base, the four spherical grooves are formed, a plurality of first blind holes are formed in the side face of the top end of the lower base, a plurality of first blind holes are formed in the side face of the bottom end of the upper base, and a plurality of first through holes are formed in the side face of the top end of the lower base. According to the invention, the problems that when the number of pipelines is large, a large number of ultralow temperature valves are needed, and the output flow of gas and liquid in the pipelines cannot be rapidly, automatically and accurately controlled are solved, and meanwhile the problem of automatic rotation of a ball valve under the action of the gas and the liquid in the pipelines is solved.

Description

technical field [0001] The invention relates to the technical field of ultra-low temperature valves, in particular to an ultra-low temperature valve with a sealing mechanism. Background technique [0002] Cryogenic valves include cryogenic ball valves, cryogenic gate valves, cryogenic globe valves, cryogenic safety valves, cryogenic check valves, etc., and are mainly used in chemical plants such as 300,000 tons of ethylene and liquefied natural gas. The output liquid low-temperature medium such as ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products, etc., is mainly used to adjust and block the output of gas and liquid. [0003] Traditional cryogenic valves have only one input port and output port, and can only control the output and control of gas and liquid in one pipeline. When there are many pipelines, a large number of cryogenic valves and pipelines are needed to control gas and liquid, which increases production costs and instal...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a new type of ultra-low temperature valve with a sealing mechanism, which solves the problem of the need for a large number of ultra-low temperature valves and the inability to quickly, automatically and accurately control the output flow of gas and liquid in the pipeline when there are many channels. The problem of the autonomous rotation of the ball valve under the action of

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