F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
F22B 37/24 (2006.01)
Patent
CA 2632937
The present invention relates to a method of and an apparatus for supporting walls of a thermal power boiler, which generally comprises the actual furnace and means for treating flue gases and, where the boiler in question is a circulating fluidized bed boiler, also means for circulating bed material and for returning it to the furnace. The invention especially relates to supporting the walls (12) of such a boiler, wherein the furnace (10) is suspended to hang on a supporting plane of the upper portion of steel structures especially arranged for the purpose, and the walls (12), being formed of the vertical water tubes of the boiler, are supported horizontally at least by means of buckstays (22) positioned substantially perpendicular to the water tubes, and vertical pillars (24) located outside the buckstays (22), which pillars (24) are attached to the ground or the base of the boiler building. In accordance with the present invention, it is a characterizing feature of the method of and apparatus for supporting walls of a power boiler, that one or more rigid planes (30) surrounding the whole boiler are attached to the pillars (24), and at least two water tube walls (12) on the opposite sides of the boiler are supported to said pillars (24).
La présente invention concerne un procédé et un appareil permettant de supporter les parois d~une chaudière à courant fort thermique, qui comprend généralement le four proprement dit et un moyen de traitement des gaz de combustion et, lorsque la chaudière en question est une chaudière à lit fluidifié en circulation, également un moyen pour faire circuler le matériau de lit et pour le renvoyer au four. L~invention concerne spécialement le support des parois (12) d~une chaudière, le four (10) étant suspendu sur un plan de support de la partie supérieure de structures d~acier disposées spécialement à cet effet, et les parois (12), constituées des tubes d~eau verticaux de la chaudière, étant supportées horizontalement au moins au moyen de poteaux d~ancrage (22) positionnés sensiblement perpendiculaires aux tubes d~eau, et de piliers verticaux (24) situés à l~extérieur des poteaux d~ancrage (22), lesquels piliers (24) sont fixés au sol ou au pied de la chaudière. Conformément à la présente invention, le procédé et l~appareil permettant de supporter les parois d~une chaudière à courant fort sont caractérisés en ce qu'un ou plusieurs plans rigides (30) entourant toute la chaudière sont fixés aux piliers (24), et au moins deux parois de tubes d~eau (12) sur les côtés opposés de la chaudière sont supportés par lesdits piliers (24).
Foster Wheeler Energia Oy
Gowling Lafleur Henderson Llp
LandOfFree
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