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很长一段时间内,火力发电厂的主厂房布置主要是以常规的“三列式”为主,即采用汽机间、除氧间、煤仓间顺序布置的方式.该布置汽机间A列柱与除氧间和煤仓间双列框架共同组成抗侧力体系,具有较好的横向刚度.而越南某火力发电厂按照工艺布置,除氧间和煤仓间合二为一,横向仅有单列框架,承受横向水平地震作用及风荷载的能力较弱.以该电厂主厂房为例,对汽机房、除氧煤仓间“两列式”顺列布置的钢结构主厂房进行计算,提出了合理可行的设计方案,可为该类型的主厂房设计提供参考.
For a long time, the layout of the main plant of the thermal power plant is mainly based on the conventional “three-column type”, that is, the arrangement of the steam turbine, the deaerator, and the coal bunker. Columns and the oxygen between the double-column frame and coal warehouse together constitute the anti-side force system, has good lateral stiffness.And a thermal power plant in Vietnam in accordance with the process layout, deaerator and coal storage room into one, horizontal Only a single frame, to withstand the horizontal horizontal seismic effect and the wind load capacity is weak.Taking the main plant of the power plant as an example, the main engine room of the steam turbine house, oxygen-free coal warehouse “two-row type ” Calculated, put forward a reasonable and feasible design, which can provide reference for the design of the main plant.