天天燥(zao)日日燥(zao):常壓(ya)人孔

人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)是(shi)指用于人(ren)(ren)(ren)員進出設(she)備以(yi)便安裝、檢(jian)修和(he)(he)安全檢(jian)查(cha)的(de)開孔(kong)(kong)(kong)(kong)結構。主要由短筒節（或短管）、法蘭和(he)(he)帶把手的(de)人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)蓋(gai)組(zu)成。從安全檢(jian)查(cha)考(kao)慮，壓(ya)力(li)容器要求開設(she)的(de)人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)數(shu)及(ji)其小(xiao)尺寸見“檢(jian)查(cha)孔(kong)(kong)(kong)(kong)”。人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)材(cai)料有(you)碳鋼和(he)(he)不銹鋼。按(an)受壓(ya)情況人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)分(fen)為(wei)常(chang)壓(ya)和(he)(he)受壓(ya)人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)；按(an)形(xing)狀人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)分(fen)為(wei)圓形(xing)、橢圓形(xing)和(he)(he)矩形(xing)人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)，矩形(xing)人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)僅適用于常(chang)壓(ya)設(she)備；按(an)安裝位置人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)分(fen)為(wei)水平和(he)(he)垂直安裝人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)；人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)蓋(gai)固定方式(shi)(shi)有(you)迥轉蓋(gai)和(he)(he)吊蓋(gai)；人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)開后(hou)速度有(you)普通式(shi)(shi)和(he)(he)快開式(shi)(shi)，人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)結構和(he)(he)尺寸一般都已標準化，可參照有(you)關手冊選用或設(she)計。