Liquid heaters and vaporizers – Indirectly heated – Separate fluid
Patent
1975-10-08
1977-06-14
Sprague, Kenneth W.
Liquid heaters and vaporizers
Indirectly heated
Separate fluid
122483, 165135, F22B 102
Patent
active
040290557
ABSTRACT:
A boiler has an outer wall of weldable material and an inner chamber including a high temperature heat exchanger which is connected by pipes passing through openings in the outer boiler wall for the supply and discharge of a heat exchange medium. Each pipe for the heat exchange medium is spaced from and passes through a sleeve-like jacket that is welded to the outer boiler wall and projects outwardly therefrom. A cooling gas is fed into the sleeve-like jacket to pass along an annular space between the jacket and the pipe. The cooling gas flows into an annular chamber between the outer boiler wall and the inner chamber. According to a second embodiment, concentric sleeves are provided in the annular space between the jacket and pipe to pass the cooling gas to and fro within this space.
REFERENCES:
patent: 3110288 (1963-11-01), Worley
patent: 3308878 (1967-03-01), Durst et al.
patent: 3338301 (1967-08-01), Romanos
patent: 3749160 (1973-07-01), Vestre
Dr. C. Otto & Comp. G.m.b.H.
Sprague Kenneth W.
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