民用燃氣表電機閥的(de)(de)最大(da)用(yong)(yong)(yong)戶是冶(ye)金(jin)行(xing)業(ye)(ye)(ye)(ye)(ye)(ye)、電(dian)(dian)力(li)(li)行(xing)業(ye)(ye)(ye)(ye)(ye)(ye)、化(hua)工(gong)(gong)行(xing)業(ye)(ye)(ye)(ye)(ye)(ye)、石(shi)化(hua)行(xing)業(ye)(ye)(ye)(ye)(ye)(ye)、和(he)城(cheng)(cheng)市建(jian)設(she)工(gong)(gong)程(cheng)(cheng)。冶(ye)金(jin)行(xing)業(ye)(ye)(ye)(ye)(ye)(ye)工(gong)(gong)程(cheng)(cheng)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)低壓(ya)(ya)大(da)口(kou)(kou)徑(jing)蝶(die)閥(fa)(fa)、氧(yang)氣截止(zhi)閥(fa)(fa)和(he)氧(yang)氣球(qiu)(qiu)閥(fa)(fa);電(dian)(dian)力(li)(li)部門工(gong)(gong)程(cheng)(cheng)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)電(dian)(dian)站用(yong)(yong)(yong)高溫壓(ya)(ya)閘(zha)閥(fa)(fa)、截止(zhi)閥(fa)(fa)、止(zhi)回閥(fa)(fa)和(he)安全閥(fa)(fa)及一部分給(gei)排水閥(fa)(fa)的(de)(de)低壓(ya)(ya)蝶(die)閥(fa)(fa)、閘(zha)閥(fa)(fa);化(hua)工(gong)(gong)行(xing)業(ye)(ye)(ye)(ye)(ye)(ye)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)不(bu)銹鋼閘(zha)閥(fa)(fa)、截止(zhi)閥(fa)(fa)、止(zhi)回閥(fa)(fa);石(shi)化(hua)行(xing)業(ye)(ye)(ye)(ye)(ye)(ye)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)API標(biao)準的(de)(de)閘(zha)閥(fa)(fa)、截止(zhi)閥(fa)(fa)和(he)止(zhi)回閥(fa)(fa);城(cheng)(cheng)市建(jian)設(she)工(gong)(gong)程(cheng)(cheng)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)低壓(ya)(ya)閥(fa)(fa),如城(cheng)(cheng)市自來(lai)水管道(dao)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)的(de)(de)大(da)口(kou)(kou)徑(jing)閘(zha)閥(fa)(fa),樓寓建(jian)設(she)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)的(de)(de)中(zhong)線(xian)(xian)蝶(die)閥(fa)(fa),城(cheng)(cheng)市供熱(re)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)的(de)(de)金(jin)屬密封蝶(die)閥(fa)(fa)等(deng);輸油管線(xian)(xian)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)平板閘(zha)閥(fa)(fa)和(he)球(qiu)(qiu)閥(fa)(fa);制藥行(xing)業(ye)(ye)(ye)(ye)(ye)(ye)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)不(bu)銹鋼球(qiu)(qiu)閥(fa)(fa);食品行(xing)業(ye)(ye)(ye)(ye)(ye)(ye)主(zhu)(zhu)要(yao)(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)不(bu)銹鋼球(qiu)(qiu)閥(fa)(fa)等(deng)。
由于用(yong)(yong)戶需求(qiu)的(de)變(bian)化(hua)(hua),閥(fa)門(men)(men)產品(pin)的(de)市(shi)場(chang)走(zou)向也(ye)(ye)將發生相(xiang)應(ying)(ying)(ying)的(de)變(bian)化(hua)(hua),在今后一(yi)段時(shi)(shi)間主要發展(zhan)(zhan)趨(qu)勢如(ru)下:能(neng)(neng)源(yuan)發展(zhan)(zhan)的(de)另一(yi)面就是節能(neng)(neng),所以(yi)從(cong)節約(yue)能(neng)(neng)源(yuan)方(fang)面看(kan),要發展(zhan)(zhan)蒸汽疏(shu)水(shui)閥(fa),并向亞臨(lin)界和(he)超臨(lin)界的(de)高參數發展(zhan)(zhan);電站(zhan)的(de)建設向大(da)型(xing)化(hua)(hua)發展(zhan)(zhan),所以(yi)需用(yong)(yong)大(da)口徑及(ji)(ji)高壓(ya)的(de)安全閥(fa)和(he)減壓(ya)閥(fa),同時(shi)(shi)也(ye)(ye)需用(yong)(yong)快速(su)啟閉閥(fa)門(men)(men);城(cheng)建系統一(yi)般采用(yong)(yong)大(da)量低壓(ya)閥(fa)門(men)(men),并且向環(huan)(huan)保(bao)型(xing)和(he)節能(neng)(neng)型(xing)發展(zhan)(zhan),即由過去使(shi)用(yong)(yong)的(de)低壓(ya)鐵制閘閥(fa)逐(zhu)步轉(zhuan)向環(huan)(huan)保(bao)型(xing)的(de)膠板閥(fa)、平衡閥(fa)、金屬密封蝶閥(fa)及(ji)(ji)中線密封蝶閥(fa)過渡,輸油(you)、輸氣(qi)工(gong)程向管道化(hua)(hua)方(fang)向發展(zhan)(zhan),這又需要大(da)量的(de)平板閘閥(fa)及(ji)(ji)球閥(fa);隨著石油(you)開發向內地(di)油(you)田和(he)海上油(you)田的(de)轉(zhuan)移,以(yi)及(ji)(ji)電力(li)工(gong)業由30萬(wan)千(qian)瓦以(yi)下的(de)火(huo)電向30萬(wan)千(qian)瓦以(yi)上的(de)火(huo)電及(ji)(ji)水(shui)電和(he)核電發展(zhan)(zhan),閥(fa)門(men)(men)產品(pin)也(ye)(ye)應(ying)(ying)(ying)依據(ju)設備(bei)應(ying)(ying)(ying)用(yong)(yong)領域變(bian)化(hua)(hua)相(xiang)應(ying)(ying)(ying)改(gai)變(bian)其性能(neng)(neng)及(ji)(ji)參數;針對成套工(gong)程的(de)需要,閥(fa)門(men)(men)供應(ying)(ying)(ying)由單(dan)一(yi)品(pin)種向多品(pin)種和(he)多規格(ge)發展(zhan)(zhan)。
自(zi)控(kong)(kong)閥(fa)(fa)門(men)(men)指的是(shi)利(li)用電動(dong)、氣動(dong)、液動(dong)或(huo)電磁驅動(dong)等人(ren)力以(yi)(yi)外(wai)的方式,對(dui)閥(fa)(fa)門(men)(men)進行控(kong)(kong)制(zhi)(zhi)(zhi)。其特點是(shi):使用方便(bian)、安(an)全;可(ke)(ke)以(yi)(yi)現場控(kong)(kong)制(zhi)(zhi)(zhi),也(ye)可(ke)(ke)以(yi)(yi)遠距(ju)離控(kong)(kong)制(zhi)(zhi)(zhi);可(ke)(ke)以(yi)(yi)對(dui)單一閥(fa)(fa)門(men)(men)進行控(kong)(kong)制(zhi)(zhi)(zhi),也(ye)可(ke)(ke)以(yi)(yi)對(dui)多(duo)部閥(fa)(fa)門(men)(men)進行集中控(kong)(kong)制(zhi)(zhi)(zhi);可(ke)(ke)以(yi)(yi)進行簡單的開(kai)關(guan)控(kong)(kong)制(zhi)(zhi)(zhi),也(ye)可(ke)(ke)以(yi)(yi)實現調節控(kong)(kong)制(zhi)(zhi)(zhi);配(pei)合電子計算機,可(ke)(ke)以(yi)(yi)實現程序化控(kong)(kong)制(zhi)(zhi)(zhi)。由(you)于(yu)有遠距(ju)離控(kong)(kong)制(zhi)(zhi)(zhi)的需(xu)要(yao),一般(ban)都會有閥(fa)(fa)門(men)(men)信號(hao)反饋(kui)(kui)——燈信號(hao)或(huo)4~20mA信號(hao)反饋(kui)(kui),用以(yi)(yi)進行閥(fa)(fa)門(men)(men)控(kong)(kong)制(zhi)(zhi)(zhi)。
當前,在宏觀(guan)(guan)經濟持續看好(hao)的(de)(de)(de)形勢下,自(zi)控(kong)閥(fa)門(men)行(xing)業(ye)(ye)(ye)的(de)(de)(de)大部分企(qi)業(ye)(ye)(ye)生產(chan)和(he)銷售指標都保(bao)持了(le)較(jiao)快增長。國家一批大型工程(cheng)(cheng)項目(mu)的(de)(de)(de)興建(jian),西氣(qi)東輸(shu)等工程(cheng)(cheng)項目(mu)帶(dai)動(dong)了(le)自(zi)控(kong)閥(fa)門(men)產(chan)業(ye)(ye)(ye)的(de)(de)(de)快速發(fa)展,尤其推(tui)動(dong)了(le)高(gao)端(duan)自(zi)控(kong)閥(fa)門(men)產(chan)品的(de)(de)(de)國產(chan)化進程(cheng)(cheng),這本身對于(yu)國內(nei)自(zi)控(kong)閥(fa)門(men)企(qi)業(ye)(ye)(ye)將(jiang)是新的(de)(de)(de)機遇和(he)挑戰。同(tong)時,不(bu)(bu)斷有新的(de)(de)(de)企(qi)業(ye)(ye)(ye)加入自(zi)控(kong)閥(fa)門(men)行(xing)業(ye)(ye)(ye)的(de)(de)(de)競爭,新企(qi)業(ye)(ye)(ye)主(zhu)要以低層(ceng)次、小(xiao)規(gui)模、家庭(ting)作坊式企(qi)業(ye)(ye)(ye)為主(zhu),質量上還不(bu)(bu)敷安穩,如(ru)跑、冒、滴、漏表(biao)象(xiang)在國產(chan)自(zi)控(kong)閥(fa)門(men)中經常出(chu)現。國內(nei)企(qi)業(ye)(ye)(ye)出(chu)產(chan)的(de)(de)(de)各種自(zi)控(kong)閥(fa)門(men)遍及存在著外(wai)漏、內(nei)漏、外(wai)觀(guan)(guan)質量不(bu)(bu)高(gao)、壽命短、操作不(bu)(bu)靈(ling)敏以及閥(fa)門(men)電動(dong)設備和(he)氣(qi)動(dong)設備不(bu)(bu)可靠等缺(que)陷,局部產(chan)物只相(xiang)當于(yu)上個世(shi)紀(ji)80年代初的(de)(de)(de)世(shi)界先進水平。
目前(qian)(qian)自(zi)控(kong)(kong)(kong)閥門(men)市(shi)場(chang)首要存在的(de)(de)(de)問題為:首先(xian),有(you)的(de)(de)(de)經營(ying)者圖(tu)便(bian)宜,買著(zhu)無(wu)廠(chang)無(wu)名(ming)(ming)的(de)(de)(de)閥門(men),打(da)上著(zhu)名(ming)(ming)廠(chang)家(jia)的(de)(de)(de)銘(ming)牌及合格證,對(dui)正規閥門(men)企業(ye)(ye)(ye)的(de)(de)(de)名(ming)(ming)譽造成極大損害。其次(ci),缺乏(fa)創新閥門(men),有(you)些經營(ying)者經過(guo)對(dui)廢舊閥門(men)簡單除銹(xiu)后油漆二次(ci)出售,給工程質(zhi)量(liang)帶來極大的(de)(de)(de)安全隱患(huan)。透過(guo)對(dui)自(zi)控(kong)(kong)(kong)閥門(men)市(shi)場(chang)的(de)(de)(de)剖析不難發現,我國自(zi)控(kong)(kong)(kong)閥門(men)產品市(shi)場(chang)有(you)著(zhu)廣泛(fan)的(de)(de)(de)發展前(qian)(qian)景(jing),但(dan)必(bi)須經過(guo)標準市(shi)場(chang)秩序和(he)嚴(yan)厲(li)的(de)(de)(de)處罰(fa),消除惡性競爭,在這里呼吁廣大同(tong)業(ye)(ye)(ye)者提高良知和(he)期(qi)待政府加大質(zhi)量(liang)監(jian)管力度(du)。但(dan)由(you)于在高端(duan)技術(shu)上與國外的(de)(de)(de)費希(xi)爾,羅托克等著(zhu)名(ming)(ming)廠(chang)商(shang)相比仍存在較大差距,缺少專(zhuan)業(ye)(ye)(ye)人(ren)才已成為制約(yue)我國自(zi)控(kong)(kong)(kong)閥門(men)產業(ye)(ye)(ye)進一步(bu)發展的(de)(de)(de)瓶頸,這勢必(bi)會(hui)影響(xiang)我國自(zi)控(kong)(kong)(kong)閥門(men)產業(ye)(ye)(ye)的(de)(de)(de)世界競爭力。
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