F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
F22B 37/06 (2006.01) F16L 58/02 (2006.01) F16L 58/10 (2006.01)
Patent
CA 2161624
A shield that is normally positioned or wrapped around a boiler tube when such tube is exposed to extreme operating conditions. This shield consists of an elongated strip of thin material that is formed as a helix. This strip also incorporates a means for spacing this strip from the tube so as to create a gap between the tube and the shield. Generally the shield is secured to the tube by spot or button welding only the longitudinal end regions of the strip to the tube. By thus wrapping and securing one or more such shields to the tube, the tube is protected while still permitting both it and the shield(s) to expand and contract as needed.
Cette invention concerne une protection de tube de chaudière qui est normalement placée ou enroulée autour des tubes exposés à des conditions de fonctionnement extrêmes. La protection se compose d'une longue bande de matériau mince enroulée en hélice et comportant des moyens d'espacement par rapport au tube pour ménager un vide entre les deux. En général, la protection est soudée en place par points seulement le long des rives longitudinales de la bande. Cette façon d'enrouler une ou plusieurs bandes autour d'un tube puis de les souder en place assure la protection de celui-ci tout en autorisant la dilatation et la contraction naturelles et du tube et de la protection.
Babcock & Wilcox Company The
Ridout & Maybee Llp
LandOfFree
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