人孔(kong)(kong)(kong)分為緊急泄壓人孔(kong)(kong)(kong)、防爆阻火呼吸人孔(kong)(kong)(kong)、罐頂人孔(kong)(kong)(kong)、罐壁人孔(kong)(kong)(kong)和(he)帶芯人孔(kong)(kong)(kong)

人(ren)孔(kong)已有(you)成型產品，直(zhi)徑通常為(wei)600mm。人(ren)孔(kong)中心距地(di)板一般為(wei)750mm。便于工作人(ren)員在(zai)安裝、清洗、維護時(shi)進出油罐或通風。

非(fei)金屬(shu)(shu)油(you)(you)(you)罐(guan)(guan)的人(ren)(ren)孔(kong)(kong)設(she)(she)在罐(guan)(guan)頂上，金屬(shu)(shu)油(you)(you)(you)罐(guan)(guan)的人(ren)(ren)孔(kong)(kong)設(she)(she)在罐(guan)(guan)壁***下圈板上。大都為直徑600mm的圓孔(kong)(kong)，其(qi)中心距底(di)板750mm，為油(you)(you)(you)罐(guan)(guan)清洗或維修(xiu)人(ren)(ren)員進(jin)出油(you)(you)(you)罐(guan)(guan)用(yong)，又(you)稱作(zuo)道門(men)。檢修(xiu)清理油(you)(you)(you)罐(guan)(guan)時(shi)刻利用(yong)人(ren)(ren)孔(kong)(kong)進(jin)行采光和通(tong)風(feng)。立式油(you)(you)(you)罐(guan)(guan)的容量(liang)在5000m3以下時(shi)設(she)(she)1~2個(ge)(ge)人(ren)(ren)孔(kong)(kong)，5000m3以上的設(she)(she)2個(ge)(ge)人(ren)(ren)孔(kong)(kong)。人(ren)(ren)孔(kong)(kong)的安裝(zhuang)應與進(jin)出油(you)(you)(you)管線相隔不(bu)大于90°。當(dang)只(zhi)設(she)(she)一(yi)(yi)個(ge)(ge)人(ren)(ren)孔(kong)(kong)時(shi)，應將其(qi)置于罐(guan)(guan)頂透(tou)光孔(kong)(kong)的對面;當(dang)設(she)(she)2個(ge)(ge)人(ren)(ren)孔(kong)(kong)時(shi)，其(qi)中一(yi)(yi)個(ge)(ge)設(she)(she)在透(tou)光孔(kong)(kong)的對面，另一(yi)(yi)個(ge)(ge)應至少與第 一(yi)(yi)個(ge)(ge)人(ren)(ren)孔(kong)(kong)相隔90°。

人孔(kong)應有一個設在進出(chu)油(you)管右側附近(jin)，并(bing)盡量使人孔(kong)正對罐室密閉門，以便人員進出(chu)、維修油(you)罐和(he)通風接管用。

由于人孔(kong)(kong)安裝(zhuang)在油(you)罐的下層體(ti)圈上(shang)，防滲漏就顯得特別(bie)重要。要求兩法蘭結合(he)面必須(xu)保(bao)證其平直度，無飄扭現象。加強板(ban)和法蘭應盡量在整塊鋼(gang)板(ban)上(shang)切割而不(bu)拼接(jie)。法蘭和蓋板(ban)上(shang)加工(gong)有密封圈，在施工(gong)中(zhong)要特別(bie)注意保(bao)護。密封用(yong)3mm厚石棉橡膠(jiao)墊(dian)片(pian)，不(bu)允許(xu)有折裂。安裝(zhuang)人孔(kong)(kong)蓋板(ban)上(shang)緊螺栓時，要成對角(jiao)均勻用(yong)力(li)，以防孔(kong)(kong)蓋變形(xing)。