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人(ren)孔(kong)(kong)(kong)(kong)是指用于(yu)人(ren)員進(jin)出(chu)設(she)備(bei)以便安裝、檢修和(he)(he)(he)(he)安全檢查的(de)開(kai)孔(kong)(kong)(kong)(kong)結構。主(zhu)要(yao)由(you)短筒節(jie)(或(huo)短管)、法蘭和(he)(he)(he)(he)帶(dai)把手(shou)的(de)人(ren)孔(kong)(kong)(kong)(kong)蓋(gai)組成(cheng)。從安全檢查考慮,壓(ya)(ya)力容器要(yao)求開(kai)設(she)的(de)人(ren)孔(kong)(kong)(kong)(kong)數及其小尺寸(cun)見“檢查孔(kong)(kong)(kong)(kong)”。人(ren)孔(kong)(kong)(kong)(kong)材料有碳鋼和(he)(he)(he)(he)不(bu)銹(xiu)鋼。按(an)受(shou)壓(ya)(ya)情況人(ren)孔(kong)(kong)(kong)(kong)分(fen)為常壓(ya)(ya)和(he)(he)(he)(he)受(shou)壓(ya)(ya)人(ren)孔(kong)(kong)(kong)(kong);按(an)形(xing)狀人(ren)孔(kong)(kong)(kong)(kong)分(fen)為圓(yuan)形(xing)、橢圓(yuan)形(xing)和(he)(he)(he)(he)矩形(xing)人(ren)孔(kong)(kong)(kong)(kong),矩形(xing)人(ren)孔(kong)(kong)(kong)(kong)僅(jin)適用于(yu)常壓(ya)(ya)設(she)備(bei);按(an)安裝位置人(ren)孔(kong)(kong)(kong)(kong)分(fen)為水(shui)平和(he)(he)(he)(he)垂(chui)直安裝人(ren)孔(kong)(kong)(kong)(kong);人(ren)孔(kong)(kong)(kong)(kong)蓋(gai)固定(ding)方式有迥轉蓋(gai)和(he)(he)(he)(he)吊蓋(gai);人(ren)孔(kong)(kong)(kong)(kong)開(kai)后速(su)度(du)有普通(tong)式和(he)(he)(he)(he)快開(kai)式,人(ren)孔(kong)(kong)(kong)(kong)結構和(he)(he)(he)(he)尺寸(cun)一般都(dou)已標準化,可參照有關手(shou)冊選(xuan)用或(huo)設(she)計。

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