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为使汽轮机装置可靠工作,必须防止凝水——给水系统各部分的腐蚀,为此应尽能减少给水中的各种腐蚀性产物。这对于轻型汽轮机装置的蒸汽发生器尤为重要,因为在它的高应力受热面上出现沉淀物会引起严重后果。如果在冷凝器之后所采取的任何防止腐蚀的除氧设备能正常起作用,则由冷凝器到除氧器这段管道的腐蚀程度决定于由冷凝器排出的凝水中腐蚀性气体,首先是氧气的含量。因此.不管汽轮机装置中是否装有除氧器,应使由冷凝器出来的凝水系统中进入凝水的含氧量最小。在热井中设置除氧设备,往往使冷凝器的结构趋于复杂,不可避免地使它的尺寸增大。为此,在没有除氧设备的
In order to ensure the reliable operation of the steam turbine installation, it is necessary to prevent the corrosion of all parts of the condensate-water supply system, for which reason various corrosive products in the feedwater should be minimized. This is particularly important for steam turbines in light-duty steam turbine installations because sedimentation on its highly stressed heating surfaces can have serious consequences. If any corrosion-inhibiting oxygen scavenging equipment after the condenser can function normally, the degree of corrosion of the pipe from the condenser to the deaerator depends on the corrosive gas in the condensate discharged from the condenser, first of all oxygen Content. Therefore, irrespective of whether a deaerator is fitted in the turbine installation, the amount of oxygen entering the condensate in the condensate system coming out of the condenser should be minimized. Setting the deaerator in hot wells tends to complicate the condenser structure and inevitably increase its size. For this reason, there is no deaerator equipment