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2019-10-30View Original

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user
Reply #22019-10-31
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Reply #32019-10-31
nouve
Reply #42019-11-08
(1)锅筒内径大于或等于800mm的水管锅炉和锅筒内径大于1000mm的锅壳式锅炉,都应在筒体或封头(管板)上开设人孔;锅筒内径为800~1000mm的锅壳式锅炉,至少应在锅筒或封头(管板)上开设一个头孔。 (2)压力容器内径≥1000mm的,应至少开设一个人孔;内径<1000mm~≥500mm的,应开设一个人孔或两个手孔。内径<500~≥300mm的,至少应开设两个手孔。 锅炉受压元件上开孔的尺寸应符合下列规定:

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