Natural gas storage device with annular sealing ring

Abstract

The invention discloses a natural gas storage device with an annular sealing ring. An inner shell is made of metal which can resist a low temperature of liquefied natural gas, and outer shell is produced by steel which can resist the inner pressure of the inner shell. Stainless steel screen vaporizer filler with high density is arranged on the bottom of the inner shell, a sieve plate is arranged on the bottom of the vaporizer filler, and a supporting body is arranged at the bottom of the sieve plate. The supporting body comprises a flange and a web plate, and the annular sealing ring is arranged at the end of a shell body. A regular concave and convex spiral pattern is arranged in the annular sealing ring, an air flow channel is formed in the protruding part of the spiral pattern. The manufacturing cost is reduced; the thickness of an inner container is reduced by minimizing the difference between the internal pressure and the external pressure of the inner container, so that the container is manufactured by a low cost; and good mass transfer and heat transfer process can be performed in a filler layer by the stainless steel screen vaporizer filler, the sealing property of the annular sealing ring is high, heat insulation and heat preservation are achieved, the loss of energy and heat is reduced, the heat efficiency is improved, and the energy is saved.

Description

technical field [0001] The invention belongs to the technical field of equipment, and in particular relates to a natural gas storage device with an annular sealing ring. Background technique [0002] Liquefied natural gas is a cryogenic liquid produced by cooling natural gas, mainly (methane), to a cryogenic state of -162°C at atmospheric pressure. The volume of liquefied natural gas is about 1 / 600 of the volume of natural gas. Liquefied natural gas is colorless and transparent. Liquefied natural gas is known to be cost-effective for long-distance transportation because it is more efficient to transport than gaseous. [0003] Since a lot of costs are spent on the construction of manufacturing plants and the construction of vehicles, in order to reduce costs, liquefied natural gas has been applied to large-scale long-distance transportation. On the other hand, pipelines or compressed natural gas are known to be cost-effective for small-scale short-distance transport. Howe...

AI Technical Summary

Problems solved by technology

For this reason, the wall thickness of the storage container inevitably increases

In addition, due to the use of expensive metals with excellent low-temperature characteristics, it is difficult to ensure economic viability

In addition, the existing natural gas storage devices and pipeline connections are poorly sealed, because the hydrocarbon content in natural gas is extremely low, and can take away the expansion agent (low molecular organic matter) in the rubber, causing the rubber sealing material to gradually shrink, dry out, and lose Sealing effect, resulting in increased leakage rate of the pipe network