人(ren)孔(kong)(kong)分為緊急泄(xie)壓人(ren)孔(kong)(kong)、防(fang)爆阻火呼吸人(ren)孔(kong)(kong)、罐頂人(ren)孔(kong)(kong)、罐壁人(ren)孔(kong)(kong)和帶芯人(ren)孔(kong)(kong)

人(ren)孔(kong)已有成型產品，直徑通常(chang)為600mm。人(ren)孔(kong)中心距地板一般為750mm。便于工作人(ren)員在安裝、清洗、維護時(shi)進出油罐或(huo)通風(feng)。

非金(jin)屬油(you)罐(guan)(guan)(guan)的(de)(de)人(ren)孔(kong)(kong)(kong)設(she)(she)在(zai)罐(guan)(guan)(guan)頂上(shang)，金(jin)屬油(you)罐(guan)(guan)(guan)的(de)(de)人(ren)孔(kong)(kong)(kong)設(she)(she)在(zai)罐(guan)(guan)(guan)壁***下圈(quan)板上(shang)。大都(dou)為(wei)直徑600mm的(de)(de)圓孔(kong)(kong)(kong)，其中(zhong)心距(ju)底板750mm，為(wei)油(you)罐(guan)(guan)(guan)清(qing)(qing)洗或維修人(ren)員進(jin)出(chu)油(you)罐(guan)(guan)(guan)用(yong)(yong)，又稱作道門。檢(jian)修清(qing)(qing)理油(you)罐(guan)(guan)(guan)時(shi)刻利用(yong)(yong)人(ren)孔(kong)(kong)(kong)進(jin)行采光(guang)和通風。立式油(you)罐(guan)(guan)(guan)的(de)(de)容(rong)量在(zai)5000m3以下時(shi)設(she)(she)1~2個(ge)(ge)人(ren)孔(kong)(kong)(kong)，5000m3以上(shang)的(de)(de)設(she)(she)2個(ge)(ge)人(ren)孔(kong)(kong)(kong)。人(ren)孔(kong)(kong)(kong)的(de)(de)安裝(zhuang)應(ying)與進(jin)出(chu)油(you)管(guan)線相隔(ge)不大于(yu)90°。當(dang)只設(she)(she)一(yi)(yi)個(ge)(ge)人(ren)孔(kong)(kong)(kong)時(shi)，應(ying)將其置(zhi)于(yu)罐(guan)(guan)(guan)頂透光(guang)孔(kong)(kong)(kong)的(de)(de)對面;當(dang)設(she)(she)2個(ge)(ge)人(ren)孔(kong)(kong)(kong)時(shi)，其中(zhong)一(yi)(yi)個(ge)(ge)設(she)(she)在(zai)透光(guang)孔(kong)(kong)(kong)的(de)(de)對面，另一(yi)(yi)個(ge)(ge)應(ying)至少與第 一(yi)(yi)個(ge)(ge)人(ren)孔(kong)(kong)(kong)相隔(ge)90°。

人孔(kong)應有一個設在進出(chu)(chu)油管右側附近，并盡量使人孔(kong)正(zheng)對罐室密閉門，以便人員進出(chu)(chu)、維(wei)修油罐和通風接管用。

由于人(ren)孔安裝在油(you)罐的下層體圈上(shang)，防滲(shen)漏就顯得(de)特(te)別重(zhong)要。要求兩法蘭結(jie)合(he)面必須(xu)保證其平(ping)直(zhi)度，無(wu)飄扭現象。加(jia)強板(ban)和法蘭應盡量在整塊鋼板(ban)上(shang)切割而(er)不拼(pin)接。法蘭和蓋板(ban)上(shang)加(jia)工有(you)(you)密封(feng)圈，在施工中要特(te)別注意保護。密封(feng)用(yong)3mm厚石棉橡膠墊(dian)片(pian)，不允許有(you)(you)折裂(lie)。安裝人(ren)孔蓋板(ban)上(shang)緊螺(luo)栓時，要成對角均勻用(yong)力，以(yi)防孔蓋變形。