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多點隔爆熱電偶常見誤差有幾個?
多(duo)點隔(ge)(ge)爆(bao)(bao)熱(re)(re)電(dian)偶適(shi)用(yong)于(yu)生產現場(chang)存在(zai)易燃(ran)易爆(bao)(bao)化合物,須同(tong)時(shi)測(ce)量多(duo)個位置(zhi)或位置(zhi)的(de)(de)(de)多(duo)處測(ce)量,廣泛應(ying)用(yong)于(yu)石(shi)油化工精餾塔裝置(zhi),在(zai)工業、電(dian)力、電(dian)子、治金、石(shi)油、船舶(bo)、機床(chuang)等領域中都有一(yi)定(ding)的(de)(de)(de)應(ying)用(yong)。隔(ge)(ge)爆(bao)(bao)熱(re)(re)電(dian)偶按符合IEC標準(zhun)的(de)(de)(de)新防(fang)爆(bao)(bao)規程(cheng)GB設計(ji);采(cai)用(yong)兩(liang)腔(qiang)式隔(ge)(ge)爆(bao)(bao)結構,更換測(ce)溫(wen)元件簡便(bian),使(shi)(shi)用(yong)安(an)全可(ke)靠(kao)。隔(ge)(ge)爆(bao)(bao)標志dⅡCT6,適(shi)用(yong)于(yu)ⅡC級以下(xia),引(yin)燃(ran)溫(wen)度T6以上(shang),含爆(bao)(bao)炸性氣(qi)體(ti)場(chang)合的(de)(de)(de)溫(wen)度測(ce)量。多(duo)點隔(ge)(ge)爆(bao)(bao)熱(re)(re)電(dian)偶在(zai)使(shi)(shi)用(yong)的(de)(de)(de)過程(cheng)中也(ye)是會存在(zai)一(yi)定(ding)的(de)(de)(de)誤(wu)差的(de)(de)(de),具體(ti)有哪(na)些呢(ni)我們共(gong)同(tong)來探討下(xia)吧(ba):1.傳熱(re)(re)誤(wu)差隔(ge)(ge)爆(bao)(bao)熱(re)(re)電(dian)偶是由測(ce)溫(wen)時(shi)...
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操作電接點雙金屬溫度計之前你需要知道這些知識
知己知彼,方能百(bai)戰不殆,對電(dian)接(jie)點雙金(jin)屬溫(wen)(wen)(wen)度(du)計(ji)來說,要想達到(dao)理想的(de)(de)使(shi)用(yong)(yong)(yong)效果(guo),一(yi)是要對使(shi)用(yong)(yong)(yong)環境的(de)(de)要求有所了(le)解,另一(yi)個就是,掌握它(ta)的(de)(de)使(shi)用(yong)(yong)(yong)和(he)維(wei)護(hu)規則。由于(yu)它(ta)在溫(wen)(wen)(wen)度(du)測量儀表中性價比較高(gao)的(de)(de),可(ke)直接(jie)測量各種生產(chan)過程中-80~500℃范圍(wei)內(nei)蒸汽和(he)氣體(ti)介質(zhi)的(de)(de)溫(wen)(wen)(wen)度(du),被應用(yong)(yong)(yong)于(yu)生產(chan)現場對溫(wen)(wen)(wen)度(du)的(de)(de)自(zi)動控制和(he)報(bao)警,所以對于(yu)它(ta)的(de)(de)維(wei)護(hu)工作(zuo)更顯得尤(you)為重(zhong)要。1、使(shi)用(yong)(yong)(yong)前應檢(jian)(jian)查溫(wen)(wen)(wen)度(du)計(ji)是否超過保(bao)證(zheng)期(qi)限(18個月(yue))。如過期(qi),需重(zhong)新(xin)檢(jian)(jian)驗合格(ge)后方準使(shi)用(yong)(yong)(yong)。2、電(dian)接(jie)點雙金(jin)屬溫(wen)(wen)(wen)度(du)計(ji)在使(shi)用(yong)(yong)(yong)和(he)安裝時,應避免碰撞保(bao)護(hu)管,切勿使(shi)保(bao)護(hu)管彎曲...
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細數多點隔爆熱電偶的幾大特性
多(duo)點(dian)隔(ge)(ge)爆(bao)熱(re)電偶適(shi)合于生(sheng)產現(xian)場(chang)存(cun)在易燃易爆(bao)化合物(wu),須同(tong)時測(ce)量多(duo)個位置(zhi)或位置(zhi)的(de)(de)多(duo)處測(ce)量,廣泛用(yong)(yong)(yong)于石油(you)化工精(jing)餾塔(ta)裝(zhuang)置(zhi)。隔(ge)(ge)爆(bao)熱(re)電偶通常和(he)(he)顯示儀表(biao)、記錄儀表(biao)、電子計算機等(deng)配套(tao)使用(yong)(yong)(yong)。直(zhi)接測(ce)量生(sheng)產現(xian)場(chang)存(cun)在碳氫化合物(wu)等(deng)爆(bao)炸的(de)(de)0-500℃范圍內液體(ti)、蒸汽和(he)(he)氣體(ti)介質以及固體(ti)表(biao)面溫(wen)度。多(duo)點(dian)隔(ge)(ge)爆(bao)熱(re)電偶的(de)(de)保護管(guan)與(yu)測(ce)量元件(jian)為(wei)分離式結(jie)(jie)構(gou),可(ke)快(kuai)速更換測(ce)溫(wen)元件(jian),進(jin)行不停(ting)機搶(qiang)修(xiu)。保護管(guan)形式和(he)(he)材料(liao)多(duo)樣,可(ke)滿足高壓,高溫(wen)和(he)(he)強腐(fu)蝕介質的(de)(de)測(ce)溫(wen)需要。采用(yong)(yong)(yong)鎧裝(zhuang)元件(jian),耐壓、抗震,工作(zuo)穩定可(ke)靠。多(duo)點(dian)隔(ge)(ge)爆(bao)熱(re)電偶和(he)(he)裝(zhuang)配式熱(re)電偶的(de)(de)結(jie)(jie)...
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玻璃管液位計的安裝調整及維護事項
玻(bo)(bo)璃管液位(wei)計根(gen)據(ju)連通原理研制而成(cheng)。在罐體或(huo)球體的(de)(de)容(rong)器里,液位(wei)上(shang)升或(huo)下降(jiang)時,因連通原理,玻(bo)(bo)璃管液位(wei)計里的(de)(de)液位(wei)也同(tong)時上(shang)升或(huo)下降(jiang)。玻(bo)(bo)璃管液位(wei)計安裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)時,應輕拿輕放,以(yi)免影(ying)響您的(de)(de)使(shi)用。機械部分的(de)(de)安裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)時可以(yi)參照(zhao)以(yi)下步驟:1.將(jiang)(jiang)液位(wei)計的(de)(de)連接法蘭(lan)(或(huo)螺紋(wen))和(he)設(she)備上(shang)對應的(de)(de)法蘭(lan)(或(huo)螺紋(wen))連接起(qi)來,應在過(guo)程連接的(de)(de)結合(he)面安裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)必要(yao)的(de)(de)密封裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)置(如密封墊),然后(hou)將(jiang)(jiang)儀(yi)表固定在設(she)備的(de)(de)法蘭(lan);2.儀(yi)表安裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)在壓(ya)(ya)力(li)(li)(li)容(rong)器上(shang)時應和(he)容(rong)器一起(qi)按有關規程進行壓(ya)(ya)力(li)(li)(li)試驗,即(ji)經(jing)過(guo)1.25倍(bei)工(gong)作壓(ya)(ya)力(li)(li)(li)的(de)(de)水壓(ya)(ya)試驗以(yi)及1.05倍(bei)工(gong)作壓(ya)(ya)力(li)(li)(li)的(de)(de)氣(qi)...
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安徽天康簡析通訊電纜和光纜的區別
當(dang)話機將(jiang)聲信(xin)(xin)(xin)號(hao)(hao)轉(zhuan)(zhuan)換(huan)成電(dian)信(xin)(xin)(xin)號(hao)(hao)后(hou)經(jing)線(xian)(xian)路傳(chuan)輸(shu)到(dao)交(jiao)換(huan)機,再(zai)由交(jiao)換(huan)機經(jing)線(xian)(xian)路將(jiang)電(dian)信(xin)(xin)(xin)號(hao)(hao)直(zhi)接(jie)(jie)傳(chuan)至另話機上接(jie)(jie)聽,這一通話過程傳(chuan)輸(shu)的(de)(de)線(xian)(xian)路就(jiu)是(shi)電(dian)纜(lan)。電(dian)纜(lan)內(nei)主要是(shi)銅(tong)芯線(xian)(xian)。芯線(xian)(xian)直(zhi)徑(jing)有(you)0.32mm、0.4mm和0.5mm之分,直(zhi)徑(jing)越大通信(xin)(xin)(xin)能(neng)力越強;還有(you)按(an)(an)芯線(xian)(xian)數量分的(de)(de),有(you):5對(dui)、10對(dui)、20對(dui)、50對(dui)、100對(dui)、200對(dui)等(deng)等(deng),這里說到(dao)的(de)(de)對(dui)數是(shi)指電(dian)纜(lan)容納的(de)(de)zui大用(yong)戶數量;還有(you)按(an)(an)封(feng)裝分的(de)(de)。電(dian)纜(lan)其體積(ji)、重(zhong)量大,通信(xin)(xin)(xin)能(neng)力差,只(zhi)能(neng)用(yong)作(zuo)近距(ju)離通信(xin)(xin)(xin)。當(dang)話機將(jiang)聲信(xin)(xin)(xin)號(hao)(hao)轉(zhuan)(zhuan)換(huan)成電(dian)信(xin)(xin)(xin)號(hao)(hao)后(hou)經(jing)線(xian)(xian)路傳(chuan)輸(shu)到(dao)交(jiao)換(huan)機,再(zai)由交(jiao)換(huan)機將(jiang)這一電(dian)信(xin)(xin)(xin)...
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耐震壓力表在運行中常見的故障及其原因分析
一(yi)、耐震(zhen)壓力表(biao)指(zhi)針(zhen)抖動(dong)(dong)大(da):1、被測介(jie)質壓力大(da);2、壓力計的安裝位置(zhi)震(zhen)動(dong)(dong)大(da)。二、耐震(zhen)壓力表(biao)無指(zhi)示:1、導壓管(guan)(guan)上(shang)的切斷閥(fa)未打(da)開(kai)(kai);2、導壓管(guan)(guan)堵塞;3、彈(dan)(dan)簧管(guan)(guan)接頭內污物淤(yu)積過多而堵塞;4、彈(dan)(dan)簧管(guan)(guan)裂開(kai)(kai);5、中(zhong)心(xin)齒(chi)(chi)與扇齒(chi)(chi)磨損過多,以至不(bu)能嚙合(he)。三、耐震(zhen)壓力表(biao)壓力指(zhi)示誤(wu)差不(bu)均勻:1、彈(dan)(dan)簧管(guan)(guan)變(bian)形失效(xiao);2、彈(dan)(dan)簧管(guan)(guan)自由端與扇形齒(chi)(chi)輪(lun),連(lian)桿傳動(dong)(dong)比調整不(bu)當。四(si)、耐震(zhen)壓力表(biao)指(zhi)針(zhen)有(you)(you)(you)跳(tiao)動(dong)(dong)或呆滯(zhi)現象:1、指(zhi)針(zhen)與表(biao)面玻璃(li)或刻(ke)度相碰有(you)(you)(you)摩檫;2、中(zhong)心(xin)齒(chi)(chi)輪(lun)軸彎曲;3、兩齒(chi)(chi)輪(lun)嚙合(he)有(you)(you)(you)污物;4、連(lian)桿與扇齒(chi)(chi)輪(lun)間的活(huo)動(dong)(dong)螺絲不(bu)靈...
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阻燃電纜的IEC阻燃等級與UL阻燃標準
一(yi)、IEC阻燃等級為了(le)評定(ding)(ding)(ding)線(xian)纜(lan)的(de)阻燃性能優劣,電工委員會分別制定(ding)(ding)(ding)了(le)IEC60332-1、IEC60332-2和(he)(he)IEC60332-3三個標準(zhun)。IEC60332-1和(he)(he)IEC60332-2分別用來評定(ding)(ding)(ding)單根線(xian)纜(lan)按傾斜和(he)(he)垂直布放時的(de)阻燃能力(國內對(dui)應(ying)GB12666.3和(he)(he)GB12666.4標準(zhun))。IEC60332-3(國內對(dui)應(ying)GB12666.5-90)用來評定(ding)(ding)(ding)成束(shu)線(xian)纜(lan)垂直燃燒(shao)時的(de)阻燃能力,相比之(zhi)下成束(shu)線(xian)纜(lan)垂直燃燒(shao)時在阻燃能力的(de)要求上要高得多(duo)。1、IEC60332-1/BS4066-1阻燃...
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安徽天康電纜技術直逼*水平
近年來,天(tian)(tian)康(kang)(kang)特(te)高(gao)(gao)壓(ya)電(dian)(dian)纜技(ji)術(shu)(shu)直逼*,多(duo)項成(cheng)為世界標(biao)準(zhun),安(an)徽天(tian)(tian)康(kang)(kang)集(ji)團(tuan)在(zai)特(te)高(gao)(gao)壓(ya)電(dian)(dian)纜生產能(neng)力無疑將為中國特(te)高(gao)(gao)壓(ya)工程(cheng)在(zai)世界舞臺競(jing)爭助(zhu)陣,提高(gao)(gao)競(jing)爭優勢。在(zai)2013年“智能(neng)電(dian)(dian)網(wang)論壇”上(shang)(shang),電(dian)(dian)工委員會(IEC)主(zhu)席克(ke)勞(lao)斯烏赫勒對安(an)徽天(tian)(tian)康(kang)(kang)集(ji)團(tuan)的(de)(de)特(te)高(gao)(gao)壓(ya)電(dian)(dian)纜給予了充分(fen)的(de)(de)肯(ken)定與新的(de)(de)期望。他認為,世界上(shang)(shang)許多(duo)國家都存在(zai)能(neng)源資(zi)源分(fen)布不均的(de)(de)情況,同時特(te)高(gao)(gao)壓(ya)電(dian)(dian)纜能(neng)夠減少長距離輸電(dian)(dian)的(de)(de)損耗,在(zai)世界上(shang)(shang)其他地區將有著廣泛的(de)(de)應(ying)用(yong)前景。目前安(an)徽天(tian)(tian)康(kang)(kang)集(ji)團(tuan)的(de)(de)特(te)高(gao)(gao)壓(ya)電(dian)(dian)纜輸電(dian)(dian)技(ji)術(shu)(shu)在(zai)世界上(shang)(shang)處于(yu)水(shui)平,作為標(biao)準(zhun)電(dian)(dian)壓(ya),安(an)徽天(tian)(tian)康(kang)(kang)集(ji)團(tuan)的(de)(de)特(te)高(gao)(gao)壓(ya)...