座环、蜗壳是混流式水轮机埋入部分的两大部件,它们既是机组的基础件,又是机组通流部件的组成部分,它们承受着随机组运行工况改变而变化的水压分布载荷以及从顶盖传导过来的作用力
底座采用不锈钢制成，座环最大可旋转350度。
The pedestal is made of stainless steel and the seating ring can rotate up to 350 degrees.
埋入部分包括蜗壳座环、尾水锥管、尾水肘管、机坑里衬等。
The embedding part includes volute socket ring, tail water taper pipe, tail water ell, pit liner and so on.
硬面环和座环的强度校核和配合长度的确定也是镶嵌式动环设计的要点。
The intensity and matched length of hard ring and husk ring is also a designed key of mounted moving ring.
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