本技術涉及(ji)化(hua)工生產,具(ju)體涉及(ji)一種乙二醇裝(zhuang)置(zhi)副產蒸汽回收利用(yong)系(xi)統。
背景技術:
1、乙二(er)(er)醇,又名(ming)甘醇,是一(yi)種(zhong)基(ji)礎化工原(yuan)料(liao),廣泛應用(yong)于(yu)聚酯生(sheng)產(chan)領域。隨著國內乙二(er)(er)醇產(chan)量(liang)(liang)驟(zou)增,導(dao)致乙二(er)(er)醇價格持續(xu)偏低,企(qi)(qi)業(ye)(ye)盈利(li)不佳。為了降低生(sheng)產(chan)成(cheng)本,增加企(qi)(qi)業(ye)(ye)效益,確保企(qi)(qi)業(ye)(ye)健(jian)康(kang)發(fa)展,回收利(li)用(yong)各種(zhong)物(wu)料(liao)能量(liang)(liang)資(zi)源勢在(zai)必行。在(zai)乙二(er)(er)醇生(sheng)產(chan)過程中(zhong)存(cun)在(zai)許多(duo)低品(pin)位(wei)蒸汽(qi)(qi)由于(yu)壓(ya)力和溫度(du)較(jiao)(jiao)低,利(li)用(yong)率較(jiao)(jiao)低。例如(ru)在(zai)草(cao)酸二(er)(er)甲酯合(he)成(cheng)過程中(zhong)會釋放(fang)一(yi)定(ding)的(de)(de)(de)熱(re)量(liang)(liang),這些熱(re)量(liang)(liang)需要通過熱(re)水(shui)移除,帶出熱(re)量(liang)(liang)的(de)(de)(de)熱(re)水(shui)進(jin)入汽(qi)(qi)包中(zhong),由于(yu)汽(qi)(qi)包壓(ya)力較(jiao)(jiao)低,此(ci)時就會副產(chan)大量(liang)(liang)低品(pin)位(wei)蒸汽(qi)(qi)。這些低品(pin)位(wei)蒸汽(qi)(qi)小部分為其他裝(zhuang)置單(dan)元提供熱(re)量(liang)(liang),剩余(yu)的(de)(de)(de)低品(pin)位(wei)蒸汽(qi)(qi)由于(yu)不符合(he)化工生(sheng)產(chan)所需,大部分企(qi)(qi)業(ye)(ye)大多(duo)選擇排空。
技術實現思路
1、本(ben)實(shi)用新型(xing)意(yi)在提供一種乙二醇裝置副(fu)產蒸汽回(hui)收(shou)利用系(xi)統,以回(hui)收(shou)低(di)(di)品位蒸汽中的熱量,從而降低(di)(di)生產成(cheng)本(ben)。
2、為達到上述目的,本實用(yong)新型采(cai)用(yong)如下(xia)技(ji)術方案:一種乙(yi)二醇裝(zhuang)置(zhi)副產蒸(zheng)(zheng)(zheng)汽(qi)(qi)回(hui)收(shou)利用(yong)系(xi)統,用(yong)于回(hui)收(shou)汽(qi)(qi)包(bao)(bao)中的低(di)(di)(di)品位蒸(zheng)(zheng)(zheng)汽(qi)(qi),包(bao)(bao)括第(di)一蒸(zheng)(zheng)(zheng)汽(qi)(qi)回(hui)收(shou)單(dan)(dan)元和(he)第(di)二蒸(zheng)(zheng)(zheng)汽(qi)(qi)回(hui)收(shou)單(dan)(dan)元,第(di)一蒸(zheng)(zheng)(zheng)汽(qi)(qi)回(hui)收(shou)單(dan)(dan)元包(bao)(bao)括蒸(zheng)(zheng)(zheng)汽(qi)(qi)壓縮機和(he)氣(qi)(qi)(qi)液(ye)(ye)(ye)(ye)(ye)(ye)分(fen)離罐(guan),蒸(zheng)(zheng)(zheng)汽(qi)(qi)壓縮機包(bao)(bao)括低(di)(di)(di)壓進氣(qi)(qi)(qi)口、出氣(qi)(qi)(qi)口和(he)機械(xie)密封,進氣(qi)(qi)(qi)口與(yu)汽(qi)(qi)包(bao)(bao)連(lian)通(tong),出氣(qi)(qi)(qi)口與(yu)氣(qi)(qi)(qi)液(ye)(ye)(ye)(ye)(ye)(ye)分(fen)離罐(guan)連(lian)通(tong),機械(xie)密封內設(she)置(zhi)有冷(leng)腔,氣(qi)(qi)(qi)液(ye)(ye)(ye)(ye)(ye)(ye)分(fen)離罐(guan)頂端(duan)連(lian)通(tong)有蒸(zheng)(zheng)(zheng)汽(qi)(qi)管(guan)網(wang),蒸(zheng)(zheng)(zheng)汽(qi)(qi)管(guan)網(wang)連(lian)通(tong)有蒸(zheng)(zheng)(zheng)汽(qi)(qi)使用(yong)裝(zhuang)置(zhi),氣(qi)(qi)(qi)液(ye)(ye)(ye)(ye)(ye)(ye)分(fen)離罐(guan)底部設(she)置(zhi)有凝(ning)(ning)液(ye)(ye)(ye)(ye)(ye)(ye)管(guan),凝(ning)(ning)液(ye)(ye)(ye)(ye)(ye)(ye)管(guan)與(yu)冷(leng)腔連(lian)通(tong),第(di)二蒸(zheng)(zheng)(zheng)汽(qi)(qi)回(hui)收(shou)單(dan)(dan)元包(bao)(bao)括低(di)(di)(di)壓蒸(zheng)(zheng)(zheng)汽(qi)(qi)凝(ning)(ning)液(ye)(ye)(ye)(ye)(ye)(ye)閃蒸(zheng)(zheng)(zheng)罐(guan),蒸(zheng)(zheng)(zheng)汽(qi)(qi)使用(yong)裝(zhuang)置(zhi)與(yu)低(di)(di)(di)壓蒸(zheng)(zheng)(zheng)汽(qi)(qi)凝(ning)(ning)液(ye)(ye)(ye)(ye)(ye)(ye)閃蒸(zheng)(zheng)(zheng)罐(guan)連(lian)通(tong),氣(qi)(qi)(qi)液(ye)(ye)(ye)(ye)(ye)(ye)分(fen)離罐(guan)頂部分(fen)離的蒸(zheng)(zheng)(zheng)汽(qi)(qi)進入(ru)蒸(zheng)(zheng)(zheng)汽(qi)(qi)管(guan)網(wang)經蒸(zheng)(zheng)(zheng)汽(qi)(qi)使用(yong)裝(zhuang)置(zhi)使用(yong)后(hou)進入(ru)低(di)(di)(di)壓蒸(zheng)(zheng)(zheng)汽(qi)(qi)凝(ning)(ning)液(ye)(ye)(ye)(ye)(ye)(ye)閃蒸(zheng)(zheng)(zheng)罐(guan)。
3、本方案的(de)有益效果為:1.通過(guo)蒸(zheng)汽(qi)壓縮(suo)機(ji)將低(di)(di)品(pin)位(wei)的(de)蒸(zheng)汽(qi)提(ti)(ti)壓,并通過(guo)氣(qi)液分離罐將提(ti)(ti)壓后的(de)蒸(zheng)汽(qi)分離,從(cong)(cong)而完成(cheng)(cheng)對低(di)(di)品(pin)位(wei)蒸(zheng)汽(qi)的(de)一次回收利(li)用(yong)(yong)(yong)(yong),一次回收利(li)用(yong)(yong)(yong)(yong)的(de)蒸(zheng)汽(qi)經過(guo)使用(yong)(yong)(yong)(yong)后進(jin)(jin)入低(di)(di)壓蒸(zheng)汽(qi)凝(ning)液閃蒸(zheng)罐,通過(guo)閃蒸(zheng)罐的(de)作用(yong)(yong)(yong)(yong),再次回收凝(ning)液中的(de)熱(re)量(liang),從(cong)(cong)而閃蒸(zheng)大量(liang)的(de)蒸(zheng)汽(qi),完成(cheng)(cheng)對低(di)(di)品(pin)位(wei)蒸(zheng)汽(qi)的(de)二次利(li)用(yong)(yong)(yong)(yong),顯著(zhu)提(ti)(ti)高了低(di)(di)品(pin)位(wei)蒸(zheng)汽(qi)的(de)利(li)用(yong)(yong)(yong)(yong)率,降(jiang)(jiang)低(di)(di)成(cheng)(cheng)本;2.氣(qi)液分離器分離的(de)凝(ning)液通過(guo)管道(dao)連通至機(ji)械(xie)密封(feng),利(li)用(yong)(yong)(yong)(yong)凝(ning)液對機(ji)械(xie)密封(feng)進(jin)(jin)行(xing)降(jiang)(jiang)溫,避(bi)免機(ji)械(xie)密封(feng)因摩(mo)擦過(guo)熱(re),導致(zhi)密封(feng)不牢,影響壓縮(suo)機(ji)的(de)壓縮(suo)效率;3.通過(guo)凝(ning)液對壓縮(suo)機(ji)進(jin)(jin)行(xing)降(jiang)(jiang)溫,無(wu)需引(yin)入額外的(de)冷卻水對壓縮(suo)機(ji)進(jin)(jin)行(xing)降(jiang)(jiang)溫,從(cong)(cong)而降(jiang)(jiang)低(di)(di)廢(fei)水的(de)產生(sheng)。
4、進一步,第二蒸汽回收單元還包括制冷(leng)機組,低壓(ya)蒸汽凝液(ye)閃蒸罐底部也設(she)置有凝液(ye)管(guan),制冷(leng)機組與凝液(ye)管(guan)連(lian)通。
5、有益(yi)效果:將(jiang)閃蒸罐中(zhong)的凝(ning)液作為制冷機組的熱(re)源,進一步提(ti)高熱(re)源的回(hui)收效率,降低使用成本。
6、進一步,還包括(kuo)消音(yin)器(qi),消音(yin)器(qi)設(she)置在汽包和(he)蒸汽壓縮機之間。
7、有(you)益效果:在蒸汽壓縮機和汽包之間設(she)置消音(yin)器,從而降低(di)管道噪(zao)音(yin),提高工作環境二段舒(shu)適性。
8、進一步,還包(bao)括凝(ning)液(ye)(ye)罐(guan),凝(ning)液(ye)(ye)罐(guan)與凝(ning)液(ye)(ye)管和制冷機(ji)組連通。
9、有益效(xiao)果:通(tong)過(guo)凝液罐將氣液分離罐中來(lai)不(bu)及使用(yong)的(de)凝液和制(zhi)冷機組(zu)使用(yong)過(guo)的(de)凝液儲存起(qi)來(lai),可(ke)作為(wei)制(zhi)備蒸(zheng)汽的(de)原料或作為(wei)低溫反(fan)應的(de)加熱(re)介(jie)質(zhi)(zhi),工(gong)廠無需從(cong)常溫對加熱(re)介(jie)質(zhi)(zhi)進行加熱(re),從(cong)而降(jiang)低能源損耗(hao),降(jiang)低生產成本。
10、進一步,低壓(ya)進氣口(kou)設置有過濾器。
11、有益效果:使(shi)用(yong)過程中(zhong)(zhong),管道中(zhong)(zhong)難免會產(chan)生如水垢、銹蝕等固體(ti)雜(za)質,將(jiang)該(gai)雜(za)質直接導(dao)入(ru)蒸(zheng)(zheng)汽(qi)壓縮(suo)機(ji)(ji)中(zhong)(zhong),可能導(dao)致蒸(zheng)(zheng)汽(qi)壓縮(suo)機(ji)(ji)磨(mo)損、卡(ka)頓乃至損壞,通過在進氣口(kou)設置過濾(lv)器,可有效避免固體(ti)雜(za)質進入(ru)蒸(zheng)(zheng)汽(qi)壓縮(suo)機(ji)(ji),提(ti)高蒸(zheng)(zheng)汽(qi)壓縮(suo)機(ji)(ji)的(de)使(shi)用(yong)年限,從而降低使(shi)用(yong)成本。
12、進一步,蒸汽壓縮機(ji)通過電機(ji)驅動。
13、有益效果(guo):低(di)品(pin)位(wei)蒸汽,即(ji)蒸汽壓(ya)力小于(yu)0.1mpa,由于(yu)不(bu)符(fu)合(he)化工生產所需(xu)(xu),大部分企業大多(duo)選擇排空。某(mou)些企業也會采用(yong)(yong)循(xun)環冷(leng)卻水(shui)或空冷(leng)器將(jiang)其冷(leng)凝成液態水(shui)循(xun)環使用(yong)(yong),這種方式低(di)品(pin)位(wei)蒸汽的(de)利用(yong)(yong)率較(jiao)低(di),而且冷(leng)卻成本較(jiao)高。采用(yong)(yong)電(dian)(dian)機驅動蒸汽壓(ya)縮機提(ti)壓(ya)這種方式我們只需(xu)(xu)要付出少量的(de)電(dian)(dian)能就(jiu)可以將(jiang)低(di)品(pin)位(wei)蒸汽回(hui)收利用(yong)(yong)。
1.一(yi)(yi)種(zhong)乙二(er)(er)醇裝置副產蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)回(hui)(hui)收利(li)用系統,用于回(hui)(hui)收汽(qi)(qi)(qi)(qi)(qi)(qi)包(bao)中的(de)低(di)(di)品位蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi),其特征在于:包(bao)括第一(yi)(yi)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)回(hui)(hui)收單(dan)(dan)元(yuan)(yuan)(yuan)和(he)第二(er)(er)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)回(hui)(hui)收單(dan)(dan)元(yuan)(yuan)(yuan),第一(yi)(yi)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)回(hui)(hui)收單(dan)(dan)元(yuan)(yuan)(yuan)包(bao)括蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)壓縮(suo)機(ji)和(he)氣(qi)(qi)(qi)(qi)(qi)液(ye)分(fen)離罐(guan),蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)壓縮(suo)機(ji)包(bao)括低(di)(di)壓進氣(qi)(qi)(qi)(qi)(qi)口、出(chu)氣(qi)(qi)(qi)(qi)(qi)口和(he)機(ji)械密封(feng),進氣(qi)(qi)(qi)(qi)(qi)口與(yu)汽(qi)(qi)(qi)(qi)(qi)(qi)包(bao)連(lian)通(tong),出(chu)氣(qi)(qi)(qi)(qi)(qi)口與(yu)氣(qi)(qi)(qi)(qi)(qi)液(ye)分(fen)離罐(guan)連(lian)通(tong),機(ji)械密封(feng)內設(she)置有(you)冷(leng)腔,氣(qi)(qi)(qi)(qi)(qi)液(ye)分(fen)離罐(guan)頂端連(lian)通(tong)有(you)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)管(guan)網,蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)管(guan)網連(lian)通(tong)有(you)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)使(shi)用裝置,氣(qi)(qi)(qi)(qi)(qi)液(ye)分(fen)離罐(guan)底部設(she)置有(you)凝(ning)液(ye)管(guan),凝(ning)液(ye)管(guan)與(yu)冷(leng)腔連(lian)通(tong),第二(er)(er)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)回(hui)(hui)收單(dan)(dan)元(yuan)(yuan)(yuan)包(bao)括低(di)(di)壓蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)凝(ning)液(ye)閃蒸(zheng)(zheng)(zheng)罐(guan),蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)使(shi)用裝置與(yu)低(di)(di)壓蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)凝(ning)液(ye)閃蒸(zheng)(zheng)(zheng)罐(guan)連(lian)通(tong),氣(qi)(qi)(qi)(qi)(qi)液(ye)分(fen)離罐(guan)頂部分(fen)離的(de)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)進入蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)管(guan)網經蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)使(shi)用裝置使(shi)用后進入低(di)(di)壓蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)凝(ning)液(ye)閃蒸(zheng)(zheng)(zheng)罐(guan)。
2.根據權利要求1所(suo)述的一(yi)種乙二醇裝置副產(chan)蒸(zheng)(zheng)汽回(hui)收利用(yong)系統,其特征在于:第(di)二蒸(zheng)(zheng)汽回(hui)收單元(yuan)還包(bao)括制冷機組(zu),低(di)壓蒸(zheng)(zheng)汽凝液(ye)閃(shan)蒸(zheng)(zheng)罐底部也設置有(you)凝液(ye)管,制冷機組(zu)與凝液(ye)管連通。
3.根據權(quan)利要求2所述的一種乙二醇裝置副產蒸汽回收利用系統,其特征在于:還包(bao)括消音器,消音器設置在汽包(bao)和蒸汽壓(ya)縮機之間。
4.根據權利要求3所述的一種乙二醇裝置副產蒸汽(qi)回收利用系統,其(qi)特征(zheng)在于(yu):還包括凝(ning)液(ye)(ye)罐(guan),凝(ning)液(ye)(ye)罐(guan)與(yu)凝(ning)液(ye)(ye)管和制冷機組連通。
5.根據(ju)權利(li)要求4所述的一種乙二(er)醇裝置副產蒸(zheng)汽回收(shou)利(li)用(yong)系統,其特征在(zai)于:低壓(ya)進氣(qi)口設置有過濾(lv)器。
6.根(gen)據(ju)權利(li)要(yao)求1所述的一種乙二醇裝置副產(chan)蒸汽回(hui)收利(li)用系統,其特征在于:蒸汽壓縮(suo)機通過電機驅動。