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壓力變送器日常維護的方法大家都知道嗎?壓力變送器在使用的過程中難免是會出現一些故障的,那麼怎樣才能避免故障的產生以及減少故障的產生呢?這個時候日常的維護就顯得尤為重要的,下麵小編就來為大家具體介紹一下壓力變送器的日常維護方法吧。
1、檢查安裝孔的尺寸:如ru果guo安an裝zhuang孔kong的de尺chi寸cun不bu合he適shi,傳chuan感gan器qi在zai安an裝zhuang過guo程cheng中zhong,其qi螺luo紋wen部bu分fen就jiu很hen容rong易yi受shou到dao磨mo損sun。這zhe不bu僅jin會hui影ying響xiang設she備bei的de密mi封feng性xing能neng,而er且qie使shi壓ya力li傳chuan感gan器qi不bu能neng充chong分fen發fa揮hui作zuo用yong,甚shen至zhi還hai可ke能neng產chan生sheng安an全quan隱yin患huan。隻zhi有you合he適shi的de安an裝zhuang孔kong才cai能neng夠gou避bi免mian螺luo紋wen的de磨mo損sun(螺紋工業標準1/2-20 UNF 2B),通常可以采用安裝孔測量儀對安裝孔進行檢測,以做出適當的調整。
2、保持安裝孔的清潔:baochianzhuangkongdeqingjiebingfangzhirongliaodusaiduibaozhengshebeidezhengchangyunxinglaishuoshifenzhongyao。zaijichujibeiqingjiezhiqian,suoyoudeyalichuanganqidouyinggaicongjitongshangchaichuyibimiansunhuai。zaichaichuchuanganqishi,rongliaoyoukenengliurudaoanzhuangkongzhongbingyinghua,ruguozhexiecanyuderongliaomeiyoubeiquchu,dangzaicianzhuangchuanganqishijiukenengzaochengqidingbushousun。qingjiegongjubaonenggoujiangzhexierongliaocanyuwuquchu。raner,zhongfudeqingjieguochengyoukenengjiashenanzhuangkongduichuanganqizaochengdesunhuai。ruguozhezhongqingkuangfasheng,jiuyingdangcaiqucuoshilaishenggaochuanganqizaianzhuangkongzhongdeweizhi。
3、選擇恰當的位置:當壓力傳感器的安裝位置太靠近生產線的上遊時,未熔融的物料可能會磨損傳感器的頂部;如ru果guo傳chuan感gan器qi被bei安an裝zhuang在zai太tai靠kao後hou的de位wei置zhi,在zai傳chuan感gan器qi和he螺luo杆gan行xing程cheng之zhi間jian可ke能neng會hui產chan生sheng熔rong融rong物wu料liao的de停ting滯zhi區qu,熔rong料liao在zai那na裏li有you可ke能neng產chan生sheng降jiang解jie,壓ya力li信xin號hao也ye可ke能neng傳chuan遞di失shi真zhen;如果傳感器過於深入機筒,螺杆有可能在旋轉過程中觸碰到傳感器的頂部而造成其損壞。一般來說,傳感器可以位於濾網前麵的機筒上、熔體泵的前後或者模具中。
4、仔細清潔;在(zai)使(shi)用(yong)鋼(gang)絲(si)刷(shua)或(huo)者(zhe)特(te)殊(shu)化(hua)合(he)物(wu)對(dui)擠(ji)出(chu)機(ji)機(ji)筒(tong)進(jin)行(xing)清(qing)潔(jie)前(qian),應(ying)該(gai)將(jiang)所(suo)有(you)的(de)傳(chuan)感(gan)器(qi)都(dou)拆(chai)卸(xie)下(xia)來(lai)。因(yin)為(wei)這(zhe)兩(liang)種(zhong)清(qing)潔(jie)方(fang)式(shi)都(dou)可(ke)能(neng)會(hui)造(zao)成(cheng)傳(chuan)感(gan)器(qi)的(de)震(zhen)動(dong)膜(mo)受(shou)損(sun)。當(dang)機(ji)筒(tong)被(bei)加(jia)熱(re)時(shi),也(ye)應(ying)該(gai)將(jiang)傳(chuan)感(gan)器(qi)拆(chai)卸(xie)下(xia)來(lai)並(bing)使(shi)用(yong)不(bu)會(hui)產(chan)生(sheng)磨(mo)損(sun)的(de)軟(ruan)布(bu)來(lai)擦(ca)拭(shi)其(qi)頂(ding)部(bu),同(tong)時(shi)傳(chuan)感(gan)器(qi)的(de)孔(kong)洞(dong)也(ye)需(xu)要(yao)用(yong)清(qing)潔(jie)的(de)鑽(zuan)孔(kong)機(ji)和(he)導(dao)套(tao)清(qing)理(li)幹(gan)淨(jing)。
5、保持幹燥:jinguanchuanganqidedianlushejinenggoujingshoukekedejichujiagonghuanjing,danshiduoshuchuanganqiyebunengjueduifangshui,zaichaoshidehuanjingxiayebuliyuzhengchangyunxing。yinci,xuyaobaozhengjichujijitongdeshuilengzhuangzhizhongdeshuibuhuishenlou,fouzehuiduichuanganqizaochengbuliyingxiang。ruguochuanganqibudebubaoluzaishuizhonghuochaoshidehuanjingxia,jiuyaoxuanzejuyoujiqiangfangshuixingdeteshuchuanganqi。
6、避免低溫幹擾:在擠出生產過程中,對於塑料原料而言,從固體到熔融狀態應當具有充足的“浸透時間”。如(ru)果(guo)擠(ji)出(chu)機(ji)在(zai)開(kai)始(shi)進(jin)行(xing)生(sheng)產(chan)前(qian)還(hai)沒(mei)有(you)達(da)到(dao)操(cao)作(zuo)溫(wen)度(du),那(na)麼(me)傳(chuan)感(gan)器(qi)和(he)擠(ji)出(chu)機(ji)都(dou)會(hui)受(shou)到(dao)一(yi)定(ding)程(cheng)度(du)的(de)損(sun)壞(huai)。另(ling)外(wai),如(ru)果(guo)傳(chuan)感(gan)器(qi)從(cong)冷(leng)的(de)擠(ji)出(chu)機(ji)上(shang)被(bei)拆(chai)除(chu),材(cai)料(liao)就(jiu)可(ke)能(neng)粘(zhan)附(fu)在(zai)傳(chuan)感(gan)器(qi)頂(ding)部(bu)引(yin)起(qi)震(zhen)動(dong)膜(mo)的(de)損(sun)壞(huai)。因(yin)此(ci),在(zai)拆(chai)除(chu)傳(chuan)感(gan)器(qi)之(zhi)前(qian),應(ying)確(que)認(ren)機(ji)筒(tong)的(de)溫(wen)度(du)足(zu)夠(gou)高(gao),機(ji)筒(tong)內(nei)部(bu)的(de)物(wu)料(liao)處(chu)於(yu)軟(ruan)化(hua)狀(zhuang)態(tai)下(xia)。
7、防止壓力過載:即使壓力傳感器測壓範圍的過載設計最高能夠達到50%(超出最大量程的比率),從cong設she備bei運yun行xing的de安an全quan角jiao度du考kao慮lv也ye應ying該gai盡jin量liang避bi免mian冒mao險xian,最zui好hao選xuan擇ze被bei測ce壓ya力li處chu於yu量liang程cheng範fan圍wei之zhi內nei的de傳chuan感gan器qi。在zai通tong常chang情qing況kuang下xia,所suo選xuan傳chuan感gan器qi的de最zui佳jia量liang程cheng應ying該gai是shi被bei測ce壓ya力li的de2倍,這樣即使擠出機在極高的壓力下運行,也能避免壓力傳感器受到損壞。
壓ya力li變bian送song器qi日ri常chang維wei護hu的de方fang法fa已yi經jing介jie紹shao完wan了le,現xian在zai大da家jia對dui於yu壓ya力li變bian送song器qi日ri常chang的de維wei護hu已yi經jing有you深shen入ru的de了le解jie。小xiao編bian在zai此ci提ti醒xing大da家jia壓ya力li變bian送song器qi在zai使shi用yong的de時shi候hou最zui好hao是shi每mei周zhou檢jian查zha一yi次ci,還hai有you注zhu意yi清qing除chu儀yi器qi上shang麵mian的de灰hui塵chen。
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