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什么是三次油氣回收?三次油氣回收設備何時開啟?

文章來源:睿(rui)馳(chi)環保(bao) 人氣:0 發表(biao)時間:2022-12-30

三次油(you)氣(qi)回(hui)收(shou)設備應該什么時候開(kai)啟,隨著政府加大環保(bao)治理的力度,越來越多的加油(you)站(zhan)陸續安裝了三次油(you)氣(qi)回(hui)收(shou)設備。

從實際(ji)使用的(de)情況看,加油站員工對這(zhe)一(yi)設備如何操(cao)作,基本沒有(you)問(wen)題(ti),但是對于“應該在什么時候開啟”,答案(an)卻很不(bu)一(yi)致。

到底該(gai)如何操作(zuo)(zuo)?需要從(cong)三次(ci)油氣回收的作(zuo)(zuo)用說起。

經過一、二次油氣回收改(gai)造后的加(jia)油(you)(you)(you)(you)(you)(you)站(zhan),卸油(you)(you)(you)(you)(you)(you)時,油(you)(you)(you)(you)(you)(you)罐車內(nei)(nei)的油(you)(you)(you)(you)(you)(you)進入(ru)(ru)加(jia)油(you)(you)(you)(you)(you)(you)站(zhan)地下(xia)儲罐內(nei)(nei),地下(xia)油(you)(you)(you)(you)(you)(you)罐內(nei)(nei)的油(you)(you)(you)(you)(you)(you)氣回(hui)(hui)到油(you)(you)(you)(you)(you)(you)罐車內(nei)(nei),油(you)(you)(you)(you)(you)(you)罐車和(he)(he)地下(xia)儲油(you)(you)(you)(you)(you)(you)罐之間形成油(you)(you)(you)(you)(you)(you)和(he)(he)氣封閉置換回(hui)(hui)路;加(jia)油(you)(you)(you)(you)(you)(you)機給汽車加(jia)油(you)(you)(you)(you)(you)(you)時,油(you)(you)(you)(you)(you)(you)罐內(nei)(nei)的油(you)(you)(you)(you)(you)(you)進入(ru)(ru)汽車油(you)(you)(you)(you)(you)(you)箱,油(you)(you)(you)(you)(you)(you)箱內(nei)(nei)的油(you)(you)(you)(you)(you)(you)氣通過油(you)(you)(you)(you)(you)(you)氣回(hui)(hui)收槍收回(hui)(hui)油(you)(you)(you)(you)(you)(you)罐,汽車油(you)(you)(you)(you)(you)(you)箱和(he)(he)油(you)(you)(you)(you)(you)(you)罐之間形成油(you)(you)(you)(you)(you)(you)和(he)(he)氣封閉置換回(hui)(hui)路。

常溫下(xia),從(cong)油(you)(you)罐車(che)卸入多少升油(you)(you),就會(hui)有多少體(ti)(ti)積(ji)的(de)氣(qi)(qi)回(hui)(hui)到(dao)油(you)(you)罐車(che),理論上是一個氣(qi)(qi)、液體(ti)(ti)積(ji)守恒,等體(ti)(ti)積(ji)置(zhi)換,這時油(you)(you)罐內氣(qi)(qi)壓不(bu)會(hui)變化。但實際上,加(jia)油(you)(you)站(zhan)油(you)(you)氣(qi)(qi)回(hui)(hui)收(shou)系統內的(de)油(you)(you)氣(qi)(qi)體(ti)(ti)積(ji)會(hui)是不(bu)斷變化的(de):

三次油氣回收設備

1、夏季(ji)卸油(you)時,地(di)下(xia)油(you)罐(guan)(guan)溫(wen)(wen)度比(bi)外(wai)界溫(wen)(wen)度低,當汽油(you)卸入(ru)加油(you)站(zhan)地(di)下(xia)油(you)罐(guan)(guan),油(you)罐(guan)(guan)內(nei)的低溫(wen)(wen)氣(qi)體(ti)進入(ru)油(you)罐(guan)(guan)車,因溫(wen)(wen)度差,使氣(qi)體(ti)體(ti)積迅速膨(peng)脹,因為經油(you)氣(qi)回收改(gai)造后的油(you)站(zhan)是一封閉系統,油(you)氣(qi)不允許外(wai)泄,這樣油(you)罐(guan)(guan)系統內(nei)的壓力(li)就(jiu)會增大(da);

2、經油(you)(you)(you)氣(qi)回收(shou)改造后的加油(you)(you)(you)機氣(qi)液比要求為1.1—1.2,即給汽(qi)車加出1升(sheng)汽(qi)油(you)(you)(you),就有1.1—1.2升(sheng)的氣(qi)回到油(you)(you)(you)罐,特別(bie)是(shi)在冬天,外(wai)面的低(di)溫(wen)氣(qi)體進入(ru)地下油(you)(you)(you)罐,氣(qi)體還會因溫(wen)差而膨脹,也會使(shi)油(you)(you)(you)罐系統內壓力(li)增(zeng)大。

以上卸油(you)(you)(you)、加油(you)(you)(you)兩(liang)個(ge)過(guo)程都會造成油(you)(you)(you)罐(guan)系統(tong)內壓(ya)(ya)力(li)增大,因此必須及時釋放壓(ya)(ya)力(li),排除風險。這(zhe)樣(yang),對安裝(zhuang)了油(you)(you)(you)氣(qi)回收(shou)設備(bei)的油(you)(you)(you)站,就(jiu)要通(tong)過(guo)通(tong)過(guo)冷凝吸附膜處理等方法,使油(you)(you)(you)氣(qi)中的油(you)(you)(you)蒸汽變成液態,流回油(you)(you)(you)罐(guan),清(qing)潔的空氣(qi)排放到(dao)外(wai)界,以釋放油(you)(you)(you)罐(guan)系統(tong)內的壓(ya)(ya)力(li)。

所以,加油(you)站三次(ci)油(you)氣(qi)回(hui)收設備不但卸(xie)油(you)時使用(yong),平(ping)時加油(you)時也(ye)應該開啟!