| 摘要 |
1527340 Coal-fired steam generators with bottom supports COMBUSTION ENG Inc 22 June 1977 [23 June 1976] 26162/77 Heading F4A A coal-fired steam generator has furnace 16 and hopper 12 portions defined by tube walls and an external ring inlet header 20 at the bottom; metal support struts 40 extend between the header and the furnace walls and, while the tubes above the top of the struts are straight, those below have bends to accommodate expansion. The lower ends of the most of the struts 40 extend from pedestals 42 which can slide on the header but four pedestals 42X are constrained to move only inwardly or outwardly. |
