液(ye)(ye)(ye)(ye)態(tai)硝(xiao)(xiao)銨(an)(an)(an)儲(chu)罐(guan)(guan){立式2}對水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)的(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)問題一(yi)(yi)直是(shi)液(ye)(ye)(ye)(ye)態(tai)硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)運(yun)輸(shu)中(zhong)(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)難點和重(zhong)點，當(dang)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)低于某一(yi)(yi)值(zhi)時(shi)，硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)會從溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)中(zhong)(zhong)(zhong)(zhong)(zhong)析(xi)出(chu)，隨(sui)著溫(wen)(wen)(wen)度(du)的(de)(de)(de)降(jiang)(jiang)(jiang)低硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)析(xi)出(chu)量(liang)的(de)(de)(de)增加(jia)(jia)，水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)結晶成(cheng)含水(shui)的(de)(de)(de)固體，因(yin)此在硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)的(de)(de)(de)運(yun)輸(shu)和儲(chu)存(cun)過(guo)(guo)程(cheng)中(zhong)(zhong)(zhong)(zhong)(zhong)對硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)溫(wen)(wen)(wen)度(du)的(de)(de)(de)控(kong)制至關(guan)重(zhong)要。硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)地(di)面儲(chu)存(cun)的(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)與攪拌(ban) 保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)方(fang)式的(de)(de)(de)選取 ，因(yin)考慮(lv)到硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)低溫(wen)(wen)(wen)易結晶的(de)(de)(de)固有特性，所以(yi)在硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)地(di)面站的(de)(de)(de)設(she)計(ji)過(guo)(guo)程(cheng)中(zhong)(zhong)(zhong)(zhong)(zhong)，對各(ge)物(wu)(wu)料管道及(ji)閥門都(dou)選取了加(jia)(jia)蒸(zheng)(zheng)汽保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)的(de)(de)(de)方(fang)式，儲(chu)罐(guan)(guan)靠近底(di)部(bu)處(chu)加(jia)(jia)蒸(zheng)(zheng)汽夾套，設(she)定(ding)好溫(wen)(wen)(wen)度(du)后(hou)，自動控(kong)制罐(guan)(guan)內(nei)的(de)(de)(de)物(wu)(wu)料溫(wen)(wen)(wen)度(du)，外層(ceng)加(jia)(jia)一(yi)(yi)次發泡成(cheng)形(xing)的(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)材料，保(bao)(bao)(bao)(bao)(bao)證了運(yun)行過(guo)(guo)程(cheng)中(zhong)(zhong)(zhong)(zhong)(zhong)24h氣溫(wen)(wen)(wen)12～25℃不(bu)(bu)加(jia)(jia)溫(wen)(wen)(wen)的(de)(de)(de)情(qing)況下溫(wen)(wen)(wen)度(du)降(jiang)(jiang)(jiang)低8℃的(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)效果，可(ke)實(shi)現(xian)班(ban)后(hou)無須(xu)送蒸(zheng)(zheng)汽保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)。液(ye)(ye)(ye)(ye)態(tai)硝(xiao)(xiao)銨(an)(an)(an)儲(chu)罐(guan)(guan){立式2}為減(jian)少硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)專用運(yun)輸(shu)車(che)(che)在運(yun)輸(shu)、現(xian)場灌(guan)裝(zhuang)過(guo)(guo)程(cheng)中(zhong)(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)熱(re)量(liang)損失，硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)專用運(yun)輸(shu)車(che)(che)罐(guan)(guan)體內(nei)、外層(ceng)之間噴注優質(zhi)的(de)(de)(de)聚氨酯保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)材料，并在其(qi)中(zhong)(zhong)(zhong)(zhong)(zhong)加(jia)(jia)入阻燃劑現(xian)場噴注現(xian)場發泡而成(cheng)，組織(zhi)結構致密(mi)，確(que)保(bao)(bao)(bao)(bao)(bao)車(che)(che)輛運(yun)輸(shu)過(guo)(guo)程(cheng)中(zhong)(zhong)(zhong)(zhong)(zhong)24h不(bu)(bu)加(jia)(jia)溫(wen)(wen)(wen)的(de)(de)(de)狀態(tai)下溫(wen)(wen)(wen)度(du)降(jiang)(jiang)(jiang)低不(bu)(bu)超過(guo)(guo)3℃。運(yun)輸(shu)車(che)(che)上(shang)設(she)有FC-803車(che)(che)輛狀態(tai)位(wei)置監(jian)控(kong)中(zhong)(zhong)(zhong)(zhong)(zhong)，可(ke)實(shi)時(shi)觀察罐(guan)(guan)體內(nei)液(ye)(ye)(ye)(ye)體的(de)(de)(de)溫(wen)(wen)(wen)度(du)、液(ye)(ye)(ye)(ye)位(wei)情(qing)況，并根據硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)濃度(du)設(she)定(ding)報警(jing)值(zhi)，在運(yun)輸(shu)車(che)(che)上(shang)設(she)有伴熱(re)帶加(jia)(jia)熱(re)裝(zhuang)置，可(ke)隨(sui)時(shi)對硝(xiao)(xiao)酸(suan)(suan)(suan)(suan)銨(an)(an)(an)水(shui)溶(rong)(rong)(rong)液(ye)(ye)(ye)(ye)進行加(jia)(jia)熱(re)。