在(zai)化工(gong)(gong)蒸汽管道工(gong)(gong)程(cheng)中(zhong)，如何(he)選用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)球(qiu)閥(fa)(fa)(fa)(fa)(fa)(fa)或(huo)(huo)蝶閥(fa)(fa)(fa)(fa)(fa)(fa)是(shi)滿足(zu)應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)要(yao)(yao)求(qiu)(qiu)的(de)(de)(de)(de)保(bao)證條件之一。如果(guo)對(dui)所(suo)(suo)應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)球(qiu)閥(fa)(fa)(fa)(fa)(fa)(fa)或(huo)(huo)蝶閥(fa)(fa)(fa)(fa)(fa)(fa)選擇不(bu)當(dang)，不(bu)只會(hui)影(ying)響應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)，而且還(huan)(huan)會(hui)帶來(lai)不(bu)良后果(guo)或(huo)(huo)嚴重(zhong)(zhong)的(de)(de)(de)(de)損失，因此(ci)(ci)，在(zai)管道工(gong)(gong)程(cheng)設計中(zhong)應(ying)(ying)(ying)(ying)(ying)(ying)正確選用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)。 電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)的(de)(de)(de)(de)義務(wu)環(huan)(huan)(huan)境(jing) 電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)除應(ying)(ying)(ying)(ying)(ying)(ying)注(zhu)意管道參數外，尚應(ying)(ying)(ying)(ying)(ying)(ying)特(te)別(bie)注(zhu)意其(qi)義務(wu)的(de)(de)(de)(de)環(huan)(huan)(huan)境(jing)條件，由(you)于(yu)(yu)(yu)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)中(zhong)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi)是(shi)一機電(dian)(dian)(dian)(dian)(dian)設備，其(qi)義務(wu)狀態受其(qi)義務(wu)環(huan)(huan)(huan)境(jing)影(ying)響很大。 通常(chang)狀態下(xia)，電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)球(qiu)閥(fa)(fa)(fa)(fa)(fa)(fa)、蝶閥(fa)(fa)(fa)(fa)(fa)(fa)在(zai)以(yi)下(xia)環(huan)(huan)(huan)境(jing)使用(yong)(yong)(yong)要(yao)(yao)特(te)別(bie)注(zhu)意： 1室(shi)內裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi)或(huo)(huo)有防護方(fang)(fang)式戶外應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)； 2戶外露天裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi)，有風、砂、雨(yu)露、陽光等侵蝕； 3具(ju)(ju)有易燃、易爆氣(qi)(qi)體或(huo)(huo)粉塵環(huan)(huan)(huan)境(jing)； 4濕(shi)熱帶、干熱帶地區環(huan)(huan)(huan)境(jing)； 5管道介(jie)質溫度高達450℃以(yi)上(shang)； 6環(huan)(huan)(huan)境(jing)溫度低于(yu)(yu)(yu)－20℃以(yi)下(xia)； 7易遭(zao)水(shui)淹或(huo)(huo)浸水(shui)中(zhong)； 8具(ju)(ju)有放射性物(wu)質(核電(dian)(dian)(dian)(dian)(dian)站及(ji)放射性物(wu)質試驗(yan)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi))環(huan)(huan)(huan)境(jing)； 9艦(jian)船上(shang)或(huo)(huo)船塢碼(ma)頭(有鹽霧、霉菌、潮濕(shi))的(de)(de)(de)(de)環(huan)(huan)(huan)境(jing)； 10具(ju)(ju)有劇(ju)烈振動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)場合(he)；易于(yu)(yu)(yu)發生火災的(de)(de)(de)(de)場合(he)； 對(dui)于(yu)(yu)(yu)上(shang)述環(huan)(huan)(huan)境(jing)中(zhong)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)球(qiu)閥(fa)(fa)(fa)(fa)(fa)(fa)，其(qi)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi)結構、材料和防護方(fang)(fang)式皆(jie)不(bu)同。因此(ci)(ci)，應(ying)(ying)(ying)(ying)(ying)(ying)依據上(shang)述義務(wu)環(huan)(huan)(huan)境(jing)選擇相應(ying)(ying)(ying)(ying)(ying)(ying)的(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi)。 電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)球(qiu)閥(fa)(fa)(fa)(fa)(fa)(fa)功能(neng)要(yao)(yao)求(qiu)(qiu) 依據工(gong)(gong)程(cheng)控(kong)(kong)(kong)制(zhi)(zhi)要(yao)(yao)求(qiu)(qiu)，對(dui)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)球(qiu)閥(fa)(fa)(fa)(fa)(fa)(fa)來(lai)講，其(qi)控(kong)(kong)(kong)制(zhi)(zhi)功能(neng)是(shi)由(you)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi)來(lai)完成的(de)(de)(de)(de)。應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)球(qiu)閥(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)宗旨，就是(shi)對(dui)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)的(de)(de)(de)(de)開(kai)、閉以(yi)及(ji)調節聯動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)完成非人工(gong)(gong)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)氣(qi)(qi)控(kong)(kong)(kong)制(zhi)(zhi)或(huo)(huo)計算(suan)機控(kong)(kong)(kong)制(zhi)(zhi)。目前的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi)應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)已不(bu)只是(shi)為了(le)勤(qin)儉人力(li)了(le)。由(you)于(yu)(yu)(yu)不(bu)同廠家(jia)產品(pin)的(de)(de)(de)(de)功能(neng)和質量(liang)區別(bie)較大，因此(ci)(ci)，選擇電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi)和選擇所(suo)(suo)配閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)對(dui)工(gong)(gong)程(cheng)同等重(zhong)(zhong)要(yao)(yao)。 電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)球(qiu)閥(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)氣(qi)(qi)控(kong)(kong)(kong)制(zhi)(zhi) 由(you)于(yu)(yu)(yu)工(gong)(gong)業自動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)化水(shui)平的(de)(de)(de)(de)要(yao)(yao)求(qiu)(qiu)始(shi)終(zhong)提高，一方(fang)(fang)面對(dui)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)的(de)(de)(de)(de)應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)量(liang)越(yue)(yue)來(lai)越(yue)(yue)多(duo)，另一方(fang)(fang)面對(dui)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)的(de)(de)(de)(de)控(kong)(kong)(kong)制(zhi)(zhi)要(yao)(yao)求(qiu)(qiu)也越(yue)(yue)來(lai)越(yue)(yue)高，越(yue)(yue)來(lai)越(yue)(yue)復雜。所(suo)(suo)以(yi)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)在(zai)電(dian)(dian)(dian)(dian)(dian)氣(qi)(qi)控(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)面的(de)(de)(de)(de)設計也在(zai)始(shi)終(zhong)更新。隨著使用(yong)(yong)(yong)要(yao)(yao)求(qiu)(qiu)不(bu)斷提高上(shang)海明保(bao)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)提高及(ji)計算(suan)機的(de)(de)(de)(de)普及(ji)應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)，新型的(de)(de)(de)(de)、多(duo)樣(yang)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)氣(qi)(qi)控(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)式將始(shi)終(zhong)地出(chu)(chu)現。對(dui)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)總體控(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)面的(de)(de)(de)(de)推敲，應(ying)(ying)(ying)(ying)(ying)(ying)注(zhu)意選擇電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)的(de)(de)(de)(de)控(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)式。例如，依據工(gong)(gong)程(cheng)需要(yao)(yao)，是(shi)否應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)集(ji)中(zhong)控(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)式，還(huan)(huan)是(shi)單(dan)臺控(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)式，是(shi)否與其(qi)他設備聯動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)，次序(xu)控(kong)(kong)(kong)制(zhi)(zhi)還(huan)(huan)是(shi)應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)計算(suan)機次序(xu)控(kong)(kong)(kong)制(zhi)(zhi)等等，其(qi)控(kong)(kong)(kong)制(zhi)(zhi)原理都(dou)不(bu)一樣(yang)。閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi)廠家(jia)樣(yang)本給(gei)出(chu)(chu)的(de)(de)(de)(de)僅(jin)是(shi)標準電(dian)(dian)(dian)(dian)(dian)氣(qi)(qi)控(kong)(kong)(kong)制(zhi)(zhi)原理，因此(ci)(ci)應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)(yong)(yong)部門(men)應(ying)(ying)(ying)(ying)(ying)(ying)與電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)(zhi)消耗廠進行技術交底，清楚(chu)技術要(yao)(yao)求(qiu)(qiu)
