Triple pipe low temperature pipeline

Details Triple pipe low temperature pipeline Triple pipe low temperature pipeline

1975-12-31

1977-03-29

Bell, Jr., Houston S.

Pipes and tubular conduits

Plural duct

With spacer and encircling element

138113, 138114, 138149, 138153, 138175, F16L 900

Patent

active

040143694

ABSTRACT:
A pipeline system for low temperature liquid or hot gas/vapor transfer including a triple pipe arrangement wherein the low temperature liquid or hot gas/vapor is transferred through an inner pipe with a vapor or condensate return respectively being provided by an annulus between the inner pipe and a middle pipe. Thermal insulation is situated in the annulus between the middle pipe and the outer casing or pipe and the outer casing is welded to the inner double pipe system at ambient temperature in order to restrain any thermal movement of the inner pipes during cooldown or heatup to operating temperature.

REFERENCES:
patent: 2875987 (1959-03-01), Valley
patent: 3113595 (1963-10-01), Cotman, Jr.
patent: 3388724 (1968-06-01), Mowell et al.

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