F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
F28F 9/013 (2006.01) F22B 37/20 (2006.01)
Patent
CA 2593907
A structural framework for supporting the heat exchanger of a steam generator, the former being comprised of serpentine tubes having sloped segments to facilitate the drainage of water from the heat exchanger when the steam generator is shutdown. The structural framework includes paired groups of vertically and diagonally extending first support members contiguously straddling the sloped-tube segments. The paired first support members are rigidly connected by second support members which extend between adjacent sloped-tube segments. The structural framework preserves the spacing between the sloped-tube segments and prevents direct contact between adjoining tube surfaces, but is not attached to the straddled tube segments and, thus, provides a tube supporting fit that is loose enough to permit the tubes to move freely due to expansion and contraction at different rates from that of the structural framework.
La présente description concerne un cadre structural permettant de soutenir l'échangeur de chaleur d'un générateur de vapeur, ce dernier comportant des tubes serpentins munis de segments inclinés destinés à faciliter l'évacuation de l'eau de l'échangeur de chaleur lorsque le générateur de vapeur est arrêté. Le cadre structural comporte des groupes jumelés de premiers éléments de soutien se prolongeant verticalement et diagonalement et surplombant de manière contiguë les segments de tubes inclinés. Les premiers éléments de soutien jumelés sont reliés de manière rigide par des seconds éléments de soutien qui se prolongent entre des segments de tube inclinés adjacents. Le cadre structural maintient l'espacement entre les segments de tubes inclinés et empêche toute mise en contact directe entre les surfaces de tube contiguës, mais il n'est pas fixé aux segments de tube enfourchés et constitue, ainsi, un dispositif d'ajustement de soutien pour tubes suffisamment lâche pour permettre aux tubes de se déplacer librement en fonction de l'expansion et de la contraction à différentes vitesses par rapport à celles du cadre structural.
Babcock & Wilcox Company The
Babcock & Wilcox Power Generation Group Inc.
Ridout & Maybee Llp
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