耐(nai)腐蝕化工泵是工(gong)業(ye)生產(chan)中，對使用泵的統稱(cheng)，耐腐蝕(shi)化工泵常(chang)見的有(you)(you)耐腐(fu)(fu)蝕氟(fu)塑料化(hua)(hua)工(gong)(gong)(gong)泵(beng)(beng)(beng)(beng)(beng)，耐腐(fu)(fu)蝕不銹鋼化(hua)(hua)工(gong)(gong)(gong)泵(beng)(beng)(beng)(beng)(beng)，液下化(hua)(hua)工(gong)(gong)(gong)泵(beng)(beng)(beng)(beng)(beng)等等，用戶在使用耐腐(fu)(fu)蝕化(hua)(hua)工(gong)(gong)(gong)泵(beng)(beng)(beng)(beng)(beng)時，出(chu)現泄漏(lou)是很麻煩的問題(ti)，需要(yao)解決這(zhe)一問題(ti)首先需找出(chu)泄漏(lou)點，對于化(hua)(hua)工(gong)(gong)(gong)泵(beng)(beng)(beng)(beng)(beng)密(mi)封(feng)墊片和密(mi)封(feng)裝置(zhi)失效(xiao)是化(hua)(hua)工(gong)(gong)(gong)泵(beng)(beng)(beng)(beng)(beng)泄漏(lou)的直接原因，下面詳細(xi)介(jie)(jie)紹化(hua)(hua)工(gong)(gong)(gong)泵(beng)(beng)(beng)(beng)(beng)密(mi)封(feng)失效(xiao)原因有(you)(you)哪些：在化(hua)(hua)工(gong)(gong)(gong)泵(beng)(beng)(beng)(beng)(beng)中，由(you)于所(suo)(suo)輸(shu)送(song)介(jie)(jie)質具(ju)有(you)(you)腐(fu)(fu)蝕性(xing)，一旦密(mi)封(feng)墊圈失效(xiao)，危(wei)害有(you)(you)非常(chang)大。所(suo)(suo)以，要(yao)十分重視(shi)耐腐(fu)(fu)蝕泵(beng)(beng)(beng)(beng)(beng)的密(mi)封(feng)性(xing)，保證(zheng)化(hua)(hua)工(gong)(gong)(gong)泵(beng)(beng)(beng)(beng)(beng)安全、正(zheng)常(chang)工(gong)(gong)(gong)作。

1.耐腐蝕(shi)泵墊(dian)片的(de)(de)材質與所輸(shu)送的(de)(de)介質不相(xiang)適(shi)應(ying)。由(you)于化(hua)工泵(beng)所輸(shu)送化(hua)工產(chan)品化(hua)學性(xing)(xing)質的(de)(de)多樣(yang)性(xing)(xing)，以(yi)及為提高燃油的(de)(de)燃燒值(zhi)，或改變其燃燒后(hou)(hou)的(de)(de)生(sheng)(sheng)(sheng)成物，而在(zai)燃油中增加入了一(yi)些(xie)少量(liang)的(de)(de)添(tian)加劑后(hou)(hou)，使燃油的(de)(de)某些(xie)性(xing)(xing)質發(fa)生(sheng)(sheng)(sheng)變化(hua)。所以(yi)選擇和輸(shu)送介質相(xiang)適(shi)的(de)(de)墊(dian)片材質并(bing)非易事，因而也經常發(fa)生(sheng)(sheng)(sheng)由(you)于不相(xiang)適(shi)應(ying)，而使化(hua)工泵(beng)墊(dian)片發(fa)生(sheng)(sheng)(sheng)侵蝕而產(chan)生(sheng)(sheng)(sheng)泄漏的(de)(de)現象。

2.作用在化(hua)(hua)工泵密(mi)(mi)封墊(dian)片上的壓(ya)(ya)力(li)(li)不(bu)足。由(you)于密(mi)(mi)封面上總是存在著微觀的凹凸不(bu)平，有時還在密(mi)(mi)封面上加工出(chu)若干(gan)環形溝(gou)槽，若保證密(mi)(mi)封，就必須(xu)對(dui)密(mi)(mi)封墊(dian)片施加足夠大的壓(ya)(ya)力(li)(li)，使其發生彈(dan)性(xing)或(huo)塑(su)性(xing)變形以(yi)填充這(zhe)些間隙(xi)。各(ge)種墊(dian)片材質(zhi)的壓(ya)(ya)緊(jin)力(li)(li)大小通常(chang)在密(mi)(mi)封墊(dian)片生產廠家樣本(ben)或(huo)產品說(shuo)明書中(zhong)給出(chu)，也(ye)可通過實驗(yan)決(jue)定。由(you)于裝配時達(da)不(bu)到墊(dian)片所(suo)需的壓(ya)(ya)緊(jin)力(li)(li)，或(huo)由(you)于在常(chang)期(qi)運行中(zhong)的振動使壓(ya)(ya)緊(jin)螺(luo)栓松動而使壓(ya)(ya)緊(jin)力(li)(li)降低，以(yi)及由(you)于墊(dian)片材質(zhi)的老化(hua)(hua)變形而喪失(shi)原來(lai)的彈(dan)性(xing)，都會使墊(dian)片失(shi)效(xiao)而產生泄漏。

3.化(hua)工泵墊(dian)(dian)(dian)片(pian)材質內(nei)部組(zu)織(zhi)或(huo)厚(hou)度不(bu)(bu)均勻，以及(ji)使(shi)(shi)用(yong)了(le)帶有裂縫或(huo)折皺的紙板(ban)。使(shi)(shi)墊(dian)(dian)(dian)片(pian)本身形(xing)成了(le)間隙，當(dang)作用(yong)在墊(dian)(dian)(dian)片(pian)上(shang)的力使(shi)(shi)墊(dian)(dian)(dian)片(pian)所產生的彈性變形(xing)不(bu)(bu)足以完(wan)全填充(chong)這些間隙時，化(hua)工(gong)泵(beng)(beng)泄漏也就不(bu)(bu)可避(bi)免(mian)了(le)。在化(hua)工(gong)泵(beng)(beng)的墊(dian)(dian)(dian)圈(quan)(quan)選(xuan)擇，安裝(zhuang)，維護(hu)及(ji)保養(yang)的過程(cheng)中，都要(yao)加(jia)強(qiang)安全生產意(yi)識，避(bi)免(mian)化(hua)工(gong)泵(beng)(beng)墊(dian)(dian)(dian)圈(quan)(quan)失效(xiao)的情況(kuang)發生。

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