人(ren)(ren)孔(kong)(kong)是指用(yong)于人(ren)(ren)員進出設(she)(she)備以便(bian)安(an)裝(zhuang)、檢(jian)(jian)修(xiu)和(he)(he)(he)安(an)全(quan)檢(jian)(jian)查(cha)的開孔(kong)(kong)結構。主(zhu)要(yao)由短筒節（或短管）、法(fa)蘭和(he)(he)(he)帶把(ba)手(shou)的人(ren)(ren)孔(kong)(kong)蓋組(zu)成(cheng)。從安(an)全(quan)檢(jian)(jian)查(cha)考(kao)慮，壓(ya)力容器要(yao)求開設(she)(she)的人(ren)(ren)孔(kong)(kong)數(shu)及其(qi)小尺寸(cun)見“檢(jian)(jian)查(cha)孔(kong)(kong)”。人(ren)(ren)孔(kong)(kong)材料有(you)(you)碳鋼(gang)和(he)(he)(he)不銹鋼(gang)。按(an)受(shou)壓(ya)情況人(ren)(ren)孔(kong)(kong)分(fen)為常(chang)壓(ya)和(he)(he)(he)受(shou)壓(ya)人(ren)(ren)孔(kong)(kong)；按(an)形(xing)(xing)狀(zhuang)人(ren)(ren)孔(kong)(kong)分(fen)為圓(yuan)(yuan)形(xing)(xing)、橢(tuo)圓(yuan)(yuan)形(xing)(xing)和(he)(he)(he)矩形(xing)(xing)人(ren)(ren)孔(kong)(kong)，矩形(xing)(xing)人(ren)(ren)孔(kong)(kong)僅適(shi)用(yong)于常(chang)壓(ya)設(she)(she)備；按(an)安(an)裝(zhuang)位(wei)置人(ren)(ren)孔(kong)(kong)分(fen)為水平和(he)(he)(he)垂直安(an)裝(zhuang)人(ren)(ren)孔(kong)(kong)；人(ren)(ren)孔(kong)(kong)蓋固定方式有(you)(you)迥轉蓋和(he)(he)(he)吊(diao)蓋；人(ren)(ren)孔(kong)(kong)開后速度有(you)(you)普通式和(he)(he)(he)快(kuai)開式，人(ren)(ren)孔(kong)(kong)結構和(he)(he)(he)尺寸(cun)一般都已標準化，可參照有(you)(you)關手(shou)冊(ce)選用(yong)或設(she)(she)計(ji)。