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Storage tank for liquefied gas having bottom insulation gas shielding

Patent ·
OSTI ID:6747142

An enclosed liquefied gas storage tank with a bottom, side wall, and roof consists of: (1) a chamber positioned in insulation beneath the tank bottom and extending over the area of the tank bottom, (2) a vapor supply conduit extending from, and communicating with, a vapor space above the design maximum liquid level storage capacity of the tank to the chamber, and (3) a vapor removal conduit communicating with the chamber for withdrawing vapor from the chamber after circulating through it. (1 claim)

Assignee:
Chicago Bridge and Iron Co.
Patent Number(s):
US 3748865
OSTI ID:
6747142
Country of Publication:
United States
Language:
English