從受力與製造方麵分析來看，球形封頭是最理想的結構形式。但缺點是深度大，衝壓較為困難；橢(tuo)圓(yuan)封(feng)頭(tou)濃(nong)度(du)比(bi)半(ban)球(qiu)形(xing)封(feng)頭(tou)小(xiao)得(de)多(duo)，易(yi)於(yu)衝(chong)壓(ya)成(cheng)型(xing)，是(shi)目(mu)前(qian)中(zhong)低(di)壓(ya)容(rong)器(qi)中(zhong)應(ying)用(yong)較(jiao)多(duo)的(de)封(feng)頭(tou)之(zhi)一(yi)。平(ping)板(ban)封(feng)頭(tou)因(yin)直(zhi)徑(jing)各(ge)厚(hou)度(du)都(dou)較(jiao)大(da)，加(jia)工(gong)與(yu)焊(han)接(jie)方(fang)麵(mian)都(dou)要(yao)遇(yu)到(dao)不(bu)少(shao)困(kun)難(nan)。從(cong)鋼(gang)材(cai)耗(hao)用(yong)量(liang)來(lai)年(nian)：球形封頭用材最少，比橢圓開封頭節約，平板封頭用材最多。因此，從強度、結構和製造方麵綜合考慮，采用橢圓形封頭最為合理。
容器支座有鞍座,圈座和支腿三種,用(yong)來(lai)支(zhi)撐(cheng)容(rong)器(qi)的(de)重(zhong)量(liang)。鞍(an)式(shi)支(zhi)座(zuo)是(shi)應(ying)用(yong)最(zui)廣(guang)泛(fan)的(de)一(yi)種(zhong)臥(wo)式(shi)支(zhi)座(zuo)。從(cong)應(ying)力(li)分(fen)析(xi)看(kan)，承(cheng)受(shou)同(tong)樣(yang)載(zai)且(qie)具(ju)有(you)同(tong)樣(yang)截(jie)麵(mian)幾(ji)何(he)形(xing)狀(zhuang)和(he)尺(chi)寸(cun)的(de)梁(liang)采(cai)用(yong)多(duo)個(ge)支(zhi)承(cheng)比(bi)采(cai)用(yong)兩(liang)個(ge)支(zhi)承(cheng)優(you)越(yue)，因(yin)為(wei)多(duo)支(zhi)承(cheng)在(zai)粱(liang)內(nei)產(chan)生(sheng)的(de)應(ying)力(li)較(jiao)小(xiao)。所(suo)以(yi)，從(cong)理(li)論(lun)上(shang)說(shuo)臥(wo)式(shi)容(rong)器(qi)的(de)支(zhi)座(zuo)數(shu)目(mu)越(yue)多(duo)越(yue)好(hao)。但(dan)在(zai)是(shi)實(shi)際(ji)上(shang)臥(wo)式(shi)容(rong)器(qi)應(ying)盡(jin)可(ke)能(neng)設(she)計(ji)成(cheng)雙(shuang)支(zhi)座(zuo)，這(zhe)是(shi)因(yin)為(wei)當(dang)支(zhi)點(dian)多(duo)於(yu)兩(liang)個(ge)時(shi)，各(ge)支(zhi)承(cheng)平(ping)麵(mian)的(de)影(ying)響(xiang)如(ru)容(rong)器(qi)簡(jian)體(ti)的(de)彎(wan)曲(qu)度(du)和(he)局(ju)部(bu)不(bu)圓(yuan)度(du)、支座的水平度、各支座基礎下沉的不均勻性、rongqibutongbuweikangjubujiaoxingdexiangduigangxingdengdeng，junhuiyingxiangzhizuofanlidefenshi。yincicaiyongduozhizuobujintixianbuchulilunshangdeyouyuelunfanerhuizaochengrongqishoulibujunyunchengdudezengjia，geirongqideyunxinganquandailaibulideyingxiang。suoyiyitaiwoshirongqizhizuoyibanqingkuangbuyiduoyuerge。quanzuoyibanduiyudazhijingbobi
容器和真空操作的容器。腿式支座簡稱支腿，因這種支座在與容器殼壁連接處會造成嚴重的局部應力，故隻適合用於小型設備（DN1600，L≤5m）。綜上考慮在此選擇雙個鞍式支座作為儲罐的支座。
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