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    • 74. 发明专利
    • Warming up method of steam turbine
    • 蒸汽涡轮加热方法
    • JPS6185506A
    • 1986-05-01
    • JP20706284
    • 1984-10-04
    • Hitachi Eng Co LtdHitachi Ltd
    • NISHINOMIYA TAKUJIIKEDA HIROSHIKANEDA HIDEAKIMAEDA TAKAYOSHIKUWAJIMA HIDESUMI
    • F01D25/10
    • F01D25/10
    • PURPOSE:To warm up a steam turbine speedily with a simple structure, by opening a warm up valve of a partial stop valve out of plural warm-up valved main steam stpp valves, while opening another stop valve too, and warming up a main steam leed pipe and a steam chest of a main steam control valve. CONSTITUTION:Warm-up valves 2a-1 and 2a-2 are installed in each of plural main steam stop valves 2-1 and 2-2 and drain valves 7-1 and 72 are installed in addition. In time of warming up for a turbine, the warm-up valve 2a-2 of the one side main steam control valve 2-2 is opened, while the drain valve 7-1 of the other side main steam control valve 2-1 is also opened. With this constitution, the steam run past the warm-up valve 2a-2 is discharged out of the drain valve 7-1 by way of main steam lead pipes 3-3 and 3-4 and steam chests 4-1 and 4-2 of a main steam control valve, whereby these main steam lead pipes 3-1-3-4 and steam chests 4-1 and 4-2 are speedily warmed up.
    • 目的:通过简单的结构快速预热蒸汽轮机,通过从多个预热阀主蒸汽阀门中打开一个部分止回阀的预热阀,同时打开另一个截止阀,并加热主蒸汽 主管和主蒸汽控制阀的蒸汽箱。 构成:在多个主蒸汽截止阀2-1和2-2中的每一个中安装有预热阀2a-1和2a-2,另外安装排水阀7-1和72。 在涡轮机预热时,单侧主蒸汽控制阀2-2的预热阀2a-2打开,而另一侧主蒸汽控制阀2-1的排水阀7-1为 也开了。 利用这种结构,经过预热阀2a-2的蒸汽通过主蒸汽引管3-3和3-4以及蒸汽箱4-1和4-2从排水阀7-1排出 的主蒸汽控制阀,由此这些主蒸汽导管3-1-3-4和蒸汽箱4-1和4-2被快速升温。