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Do LNG pipelines need insulation?
2023-01-19       Source:尤特森

  Recently, there are a lot of problems with LNG insulation. Some people ask whether LNG storage tanks have been insulated, but does the pipeline still need to be insulated? LNG is short for liquefied natural gas. Natural gas is purified and turned into a liquid at minus 162 degrees Celsius, making it easier to transport and store.

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  The premise: "LNG is minus 162 degrees Celsius," so it needs to be reheated and vaporized before it can be used. In the warm south, the sea water temperature is higher, can directly use the seawater heating gasification, the use of open rack sea water gasification (ORV); In the northern winter, gas is even burned to heat the sea water because of its lower temperature. Some use submerged combustion gasifiers. General pipeline use occasions, and combined with the environmental temperature to determine whether the need for pipeline insulation. Generally in use of pipelines such as household use of gasified natural gas pipelines, is not required to carry out insulation. However, it is necessary to carry out insulation on the LNG storage tank before processing liquefaction. Generally, we use Uetersen's LNG special elastic felt with perlite for insulation construction. LNG storage tanks are divided into various forms, including horizontal, vertical, mother-child, and Marine LNG carriers.

  Elastic felt can be used in multi-scene LNG storage tanks. It has good anti-corrosion properties, which can meet the long-term application of tanks and reduce maintenance costs. LNG has good resilience, different temperatures inside and outside the tank, Uetersen LNG special elastic felt has good adaptability to high and low temperatures.