檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)是(shi)一(yi)種用(yong)于(yu)(yu)(yu)檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)(de)(de)(de)(de)(de)安全(quan)(quan)系(xi)(xi)統(tong)(tong)。它(ta)通(tong)過檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)周圍(wei)環境(jing)(jing)中的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)信(xin)號(hao)(hao)來確(que)定(ding)(ding)(ding)(ding)是(shi)否存在泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)。檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)通(tong)常包括(kuo)(kuo)傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)、信(xin)號(hao)(hao)處理(li)(li)單(dan)(dan)元(yuan)(yuan)和(he)(he)(he)控(kong)制(zhi)(zhi)單(dan)(dan)元(yuan)(yuan)。傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)通(tong)常安裝(zhuang)在需(xu)要(yao)檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)(de)(de)(de)(de)(de)位(wei)(wei)置(zhi)，如管(guan)道(dao)、儲(chu)罐和(he)(he)(he)容器(qi)(qi)(qi)(qi)等(deng)(deng)。信(xin)號(hao)(hao)處理(li)(li)單(dan)(dan)元(yuan)(yuan)將傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)捕(bu)獲(huo)的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)信(xin)號(hao)(hao)進(jin)行(xing)(xing)處理(li)(li)，以(yi)確(que)定(ding)(ding)(ding)(ding)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)(de)(de)(de)(de)(de)位(wei)(wei)置(zhi)和(he)(he)(he)大(da)小。控(kong)制(zhi)(zhi)單(dan)(dan)元(yuan)(yuan)根(gen)據泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)(de)(de)(de)(de)(de)位(wei)(wei)置(zhi)和(he)(he)(he)大(da)小進(jin)行(xing)(xing)相應的(de)(de)(de)(de)(de)(de)控(kong)制(zhi)(zhi)，如關(guan)(guan)閉(bi)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)源(yuan)或(huo)報(bao)(bao)警(jing)等(deng)(deng)。檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)(de)(de)部件是(shi)傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)。傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)可(ke)(ke)(ke)(ke)以(yi)根(gen)據不(bu)同的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)原因和(he)(he)(he)環境(jing)(jing)條件選擇(ze)不(bu)同的(de)(de)(de)(de)(de)(de)類(lei)型。例如，氣(qi)(qi)體(ti)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)可(ke)(ke)(ke)(ke)以(yi)檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)氣(qi)(qi)體(ti)的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)，電(dian)(dian)磁(ci)閥泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)可(ke)(ke)(ke)(ke)以(yi)檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)電(dian)(dian)磁(ci)閥的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)。傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)選擇(ze)需(xu)要(yao)考慮到泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)(de)(de)(de)(de)(de)類(lei)型、工(gong)作(zuo)(zuo)環境(jing)(jing)和(he)(he)(he)安裝(zhuang)位(wei)(wei)置(zhi)等(deng)(deng)因素。信(xin)號(hao)(hao)處理(li)(li)單(dan)(dan)元(yuan)(yuan)是(shi)檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)(de)(de)關(guan)(guan)鍵部件，它(ta)將傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)捕(bu)獲(huo)的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)信(xin)號(hao)(hao)進(jin)行(xing)(xing)處理(li)(li)，以(yi)確(que)定(ding)(ding)(ding)(ding)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)(de)(de)(de)(de)(de)位(wei)(wei)置(zhi)和(he)(he)(he)大(da)小。信(xin)號(hao)(hao)處理(li)(li)單(dan)(dan)元(yuan)(yuan)的(de)(de)(de)(de)(de)(de)類(lei)型和(he)(he)(he)性(xing)能決定(ding)(ding)(ding)(ding)了檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)(de)(de)性(xing)能。常見的(de)(de)(de)(de)(de)(de)信(xin)號(hao)(hao)處理(li)(li)單(dan)(dan)元(yuan)(yuan)包括(kuo)(kuo)放大(da)器(qi)(qi)(qi)(qi)、濾波器(qi)(qi)(qi)(qi)、泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)器(qi)(qi)(qi)(qi)和(he)(he)(he)報(bao)(bao)警(jing)器(qi)(qi)(qi)(qi)等(deng)(deng)。控(kong)制(zhi)(zhi)單(dan)(dan)元(yuan)(yuan)根(gen)據泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)(de)(de)(de)(de)(de)位(wei)(wei)置(zhi)和(he)(he)(he)大(da)小進(jin)行(xing)(xing)相應的(de)(de)(de)(de)(de)(de)控(kong)制(zhi)(zhi)，如關(guan)(guan)閉(bi)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)源(yuan)或(huo)報(bao)(bao)警(jing)等(deng)(deng)。控(kong)制(zhi)(zhi)單(dan)(dan)元(yuan)(yuan)的(de)(de)(de)(de)(de)(de)類(lei)型和(he)(he)(he)性(xing)能也決定(ding)(ding)(ding)(ding)了檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)(de)(de)性(xing)能。常見的(de)(de)(de)(de)(de)(de)控(kong)制(zhi)(zhi)單(dan)(dan)元(yuan)(yuan)包括(kuo)(kuo)安全(quan)(quan)閥、排放閥、報(bao)(bao)警(jing)器(qi)(qi)(qi)(qi)和(he)(he)(he)緊急切斷閥等(deng)(deng)。檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)(de)(de)應用(yong)非常廣泛，汽車行(xing)(xing)業(ye)氦檢(jian)(jian)(jian)(jian)(jian)(jian)解決方案，可(ke)(ke)(ke)(ke)以(yi)用(yong)于(yu)(yu)(yu)石油化工(gong)、煤(mei)(mei)炭(tan)、電(dian)(dian)力(li)、冶金(jin)等(deng)(deng)行(xing)(xing)業(ye)。在石油化工(gong)行(xing)(xing)業(ye)，檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)可(ke)(ke)(ke)(ke)以(yi)用(yong)于(yu)(yu)(yu)檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)儲(chu)罐和(he)(he)(he)管(guan)道(dao)的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)，防止泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)事故的(de)(de)(de)(de)(de)(de)發生，保(bao)(bao)障(zhang)生產過程(cheng)的(de)(de)(de)(de)(de)(de)安全(quan)(quan)。在煤(mei)(mei)炭(tan)行(xing)(xing)業(ye)，檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)可(ke)(ke)(ke)(ke)以(yi)用(yong)于(yu)(yu)(yu)檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)煤(mei)(mei)炭(tan)罐的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)，防止煤(mei)(mei)炭(tan)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)，避免火災和(he)(he)(he)事故的(de)(de)(de)(de)(de)(de)發生。在電(dian)(dian)力(li)行(xing)(xing)業(ye)，檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)可(ke)(ke)(ke)(ke)以(yi)用(yong)于(yu)(yu)(yu)檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)電(dian)(dian)纜的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)，保(bao)(bao)障(zhang)電(dian)(dian)力(li)設備的(de)(de)(de)(de)(de)(de)安全(quan)(quan)運行(xing)(xing)。在冶金(jin)行(xing)(xing)業(ye)，檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)可(ke)(ke)(ke)(ke)以(yi)用(yong)于(yu)(yu)(yu)檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)高溫爐的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)，防止高溫熔融物(wu)的(de)(de)(de)(de)(de)(de)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)，保(bao)(bao)障(zhang)工(gong)人的(de)(de)(de)(de)(de)(de)安全(quan)(quan)。總之，檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)是(shi)一(yi)種用(yong)于(yu)(yu)(yu)檢(jian)(jian)(jian)(jian)(jian)(jian)測(ce)(ce)泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)(de)(de)(de)(de)(de)安全(quan)(quan)系(xi)(xi)統(tong)(tong)，通(tong)過傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)、信(xin)號(hao)(hao)處理(li)(li)單(dan)(dan)元(yuan)(yuan)和(he)(he)(he)控(kong)制(zhi)(zhi)單(dan)(dan)元(yuan)(yuan)的(de)(de)(de)(de)(de)(de)協同工(gong)作(zuo)(zuo)，實現(xian)對泄(xie)(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)(de)(de)(de)(de)(de)定(ding)(ding)(ding)(ding)位(wei)(wei)和(he)(he)(he)控(kong)制(zhi)(zhi)。檢(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)系(xi)(xi)統(tong)(tong)在石油化工(gong)、煤(mei)(mei)炭(tan)、電(dian)(dian)力(li)、冶金(jin)等(deng)(deng)行(xing)(xing)業(ye)得到了廣泛的(de)(de)(de)(de)(de)(de)應用(yong)，可(ke)(ke)(ke)(ke)以(yi)保(bao)(bao)障(zhang)生產過程(cheng)的(de)(de)(de)(de)(de)(de)安全(quan)(quan)。

真(zhen)空(kong)箱氦檢(jian)漏系統是一(yi)種用于檢(jian)測(ce)產品泄(xie)漏率的設備。其工作原(yuan)理主要包(bao)括(kuo)以下(xia)幾個步驟(zou)：1.首先，將(jiang)待測(ce)物(wu)品放入(ru)真(zhen)空(kong)氣密(mi)(mi)腔(qiang)內(nei)(nei)，氣密(mi)(mi)腔(qiang)由被抽(chou)空(kong)的內(nei)(nei)室和連接的管道組成；其中(zhong)，在內(nei)(nei)室的頂(ding)(ding)部裝(zhuang)有頂(ding)(ding)針(zhen)機構，當需要放氣時可通(tong)過(guo)控制(zhi)電(dian)路打開頂(ding)(ding)針(zhen)使氣體進(jin)入(ru)大氣中(zhong)排放到室外或通(tong)過(guo)冷(leng)凝回收裝(zhuang)置進(jin)行收集處理。在進(jin)氣管上還設有壓(ya)力表、電(dian)磁(ci)閥與充注等(deng)附件(jian)供操作人員在試(shi)(shi)驗前對氣壓(ya)進(jin)行檢(jian)查(cha)和控制(zhi)以及向氣路系統中(zhong)充入(ru)惰性保(bao)護氣體。2.然(ran)后啟(qi)動增壓(ya)泵開始抽(chou)出(chu)測(ce)試(shi)(shi)倉的壓(ya)力至(zhi)0.5-0.6KPa(5-6mbar)左右(you)，關閉(bi)增壓(ya)泵電(dian)源(yuan)并接通(tong)試(shi)(shi)件(jian)控制(zhi)系統電(dian)源(yuan)，并將(jiang)探頭安裝(zhuang)在密(mi)(mi)封容器的法蘭盤處。3.利用示差法判別泄(xie)露部位(wei)及大致位(wei)置尺寸;根據讀數(shu)可以判斷出(chu)泄(xie)漏率的大小(xiao)。

氦檢(jian)(jian)漏系(xi)(xi)統(tong)(tong)是一種氣(qi)(qi)密檢(jian)(jian)測(ce)(ce)系(xi)(xi)統(tong)(tong)，用(yong)于(yu)(yu)檢(jian)(jian)測(ce)(ce)容(rong)器(qi)或(huo)(huo)管道(dao)是否存(cun)在泄(xie)漏。它使用(yong)氦氣(qi)(qi)來填充容(rong)器(qi)或(huo)(huo)管道(dao)，以便(bian)在泄(xie)漏時(shi)檢(jian)(jian)測(ce)(ce)到(dao)。當(dang)氦氣(qi)(qi)進入容(rong)器(qi)或(huo)(huo)管道(dao)時(shi)，它會(hui)與其中的(de)空(kong)氣(qi)(qi)混(hun)合，從而(er)產生氣(qi)(qi)泡(pao)(pao)。如果(guo)存(cun)在泄(xie)漏，氣(qi)(qi)泡(pao)(pao)會(hui)在容(rong)器(qi)或(huo)(huo)管道(dao)內(nei)部形成，從而(er)發(fa)(fa)(fa)出(chu)警報(bao)。該系(xi)(xi)統(tong)(tong)通常(chang)由一個氦氣(qi)(qi)發(fa)(fa)(fa)生器(qi)、一個氦氣(qi)(qi)檢(jian)(jian)測(ce)(ce)器(qi)和一個報(bao)警控制(zhi)器(qi)組成。氦氣(qi)(qi)發(fa)(fa)(fa)生器(qi)產生氦氣(qi)(qi)，氦氣(qi)(qi)檢(jian)(jian)測(ce)(ce)器(qi)檢(jian)(jian)測(ce)(ce)氦氣(qi)(qi)的(de)存(cun)在，并(bing)將其轉換為電信(xin)(xin)號。報(bao)警控制(zhi)器(qi)收到(dao)電信(xin)(xin)號后(hou)，會(hui)發(fa)(fa)(fa)出(chu)警報(bao)，通知操(cao)作人員(yuan)進行檢(jian)(jian)查。氦檢(jian)(jian)漏系(xi)(xi)統(tong)(tong)具有靈敏度高、檢(jian)(jian)測(ce)(ce)速度快(kuai)、安裝方便(bian)等(deng)優點(dian)，廣(guang)泛應(ying)用(yong)于(yu)(yu)石油、化工、制(zhi)藥等(deng)行業。