人(ren)(ren)孔(kong)(kong)(kong)是指用于人(ren)(ren)員進出設備以便安(an)裝、檢(jian)(jian)(jian)修(xiu)和(he)安(an)全檢(jian)(jian)(jian)查的(de)(de)開孔(kong)(kong)(kong)結(jie)構(gou)。主要由短(duan)筒節（或短(duan)管）、法蘭和(he)帶把手的(de)(de)人(ren)(ren)孔(kong)(kong)(kong)蓋組成。從安(an)全檢(jian)(jian)(jian)查考(kao)慮，壓(ya)力容器要求開設的(de)(de)人(ren)(ren)孔(kong)(kong)(kong)數(shu)及其小尺寸(cun)見“檢(jian)(jian)(jian)查孔(kong)(kong)(kong)”。人(ren)(ren)孔(kong)(kong)(kong)材料(liao)有(you)碳鋼和(he)不銹鋼。按受壓(ya)情況人(ren)(ren)孔(kong)(kong)(kong)分為常壓(ya)和(he)受壓(ya)人(ren)(ren)孔(kong)(kong)(kong)；按形狀人(ren)(ren)孔(kong)(kong)(kong)分為圓形、橢圓形和(he)矩(ju)形人(ren)(ren)孔(kong)(kong)(kong)，矩(ju)形人(ren)(ren)孔(kong)(kong)(kong)僅適用于常壓(ya)設備；按安(an)裝位置人(ren)(ren)孔(kong)(kong)(kong)分為水(shui)平和(he)垂直(zhi)安(an)裝人(ren)(ren)孔(kong)(kong)(kong)；人(ren)(ren)孔(kong)(kong)(kong)蓋固定方式有(you)迥轉蓋和(he)吊蓋；人(ren)(ren)孔(kong)(kong)(kong)開后速度有(you)普通(tong)式和(he)快開式，人(ren)(ren)孔(kong)(kong)(kong)結(jie)構(gou)和(he)尺寸(cun)一般都已標(biao)準化，可參照有(you)關手冊選用或設計。