耐腐蝕(shi)化工泵是工業生產中(zhong)，對使用泵的統稱(cheng)，耐(nai)腐(fu)蝕化工泵常見的有(you)(you)耐腐(fu)蝕氟塑料化(hua)工(gong)(gong)(gong)泵(beng)(beng)，耐腐(fu)蝕不(bu)銹鋼化(hua)工(gong)(gong)(gong)泵(beng)(beng)，液下化(hua)工(gong)(gong)(gong)泵(beng)(beng)等等，用戶在使用耐腐(fu)蝕化(hua)工(gong)(gong)(gong)泵(beng)(beng)時，出現泄(xie)漏(lou)是很麻煩的問(wen)題(ti)，需要(yao)解決這一問(wen)題(ti)首先(xian)需找出泄(xie)漏(lou)點，對于(yu)化(hua)工(gong)(gong)(gong)泵(beng)(beng)密封墊片和密封裝置(zhi)失效是化(hua)工(gong)(gong)(gong)泵(beng)(beng)泄(xie)漏(lou)的直接原(yuan)因(yin)，下面詳細介紹化(hua)工(gong)(gong)(gong)泵(beng)(beng)密封失效原(yuan)因(yin)有(you)(you)哪些：在化(hua)工(gong)(gong)(gong)泵(beng)(beng)中，由于(yu)所輸送介質具(ju)有(you)(you)腐(fu)蝕性(xing)，一旦密封墊圈失效，危害(hai)有(you)(you)非常大。所以(yi)，要(yao)十分重視耐腐(fu)蝕泵(beng)(beng)的密封性(xing)，保(bao)證(zheng)化(hua)工(gong)(gong)(gong)泵(beng)(beng)安全、正常工(gong)(gong)(gong)作。

1.耐腐蝕泵墊(dian)片的(de)材質與所輸送(song)的(de)介質不(bu)相適(shi)應。由(you)于化工(gong)泵(beng)所輸送(song)化工(gong)產(chan)品化學(xue)性質的(de)多樣性，以(yi)及為提(ti)高燃(ran)油的(de)燃(ran)燒值，或改變其燃(ran)燒后的(de)生成(cheng)物，而在燃(ran)油中增(zeng)加入了(le)一些少量的(de)添加劑后，使燃(ran)油的(de)某(mou)些性質發生變化。所以(yi)選擇和輸送(song)介質相適(shi)的(de)墊(dian)片材質并(bing)非易事，因而也經常發生由(you)于不(bu)相適(shi)應，而使化工(gong)泵(beng)墊(dian)片發生侵蝕而產(chan)生泄漏的(de)現象(xiang)。

2.作(zuo)用在(zai)(zai)化工泵密(mi)(mi)封(feng)(feng)(feng)墊(dian)片(pian)(pian)上(shang)的(de)(de)(de)(de)壓(ya)(ya)力不足(zu)。由(you)于(yu)(yu)(yu)密(mi)(mi)封(feng)(feng)(feng)面上(shang)總是(shi)存在(zai)(zai)著微觀的(de)(de)(de)(de)凹凸不平，有(you)時還在(zai)(zai)密(mi)(mi)封(feng)(feng)(feng)面上(shang)加(jia)(jia)工出若干環形(xing)溝槽，若保(bao)證密(mi)(mi)封(feng)(feng)(feng)，就必須對密(mi)(mi)封(feng)(feng)(feng)墊(dian)片(pian)(pian)施加(jia)(jia)足(zu)夠(gou)大的(de)(de)(de)(de)壓(ya)(ya)力，使其發生彈性或(huo)(huo)塑(su)性變(bian)(bian)形(xing)以填充這些間隙。各種墊(dian)片(pian)(pian)材質的(de)(de)(de)(de)壓(ya)(ya)緊力大小通常在(zai)(zai)密(mi)(mi)封(feng)(feng)(feng)墊(dian)片(pian)(pian)生產廠家樣本或(huo)(huo)產品說明書中(zhong)給出，也可通過實驗決定。由(you)于(yu)(yu)(yu)裝配時達不到墊(dian)片(pian)(pian)所需的(de)(de)(de)(de)壓(ya)(ya)緊力，或(huo)(huo)由(you)于(yu)(yu)(yu)在(zai)(zai)常期運行中(zhong)的(de)(de)(de)(de)振(zhen)動(dong)使壓(ya)(ya)緊螺栓松動(dong)而(er)(er)(er)使壓(ya)(ya)緊力降低(di)，以及由(you)于(yu)(yu)(yu)墊(dian)片(pian)(pian)材質的(de)(de)(de)(de)老化變(bian)(bian)形(xing)而(er)(er)(er)喪失(shi)原來的(de)(de)(de)(de)彈性，都(dou)會使墊(dian)片(pian)(pian)失(shi)效而(er)(er)(er)產生泄漏(lou)。

3.化工泵墊(dian)片(pian)(pian)材質內部組織或(huo)厚度不均勻，以及使用(yong)了(le)帶有(you)裂縫或(huo)折皺(zhou)的(de)(de)紙板。使墊(dian)片(pian)(pian)本身形成了(le)間(jian)隙(xi)，當作用(yong)在(zai)墊(dian)片(pian)(pian)上(shang)的(de)(de)力使墊(dian)片(pian)(pian)所(suo)產生(sheng)的(de)(de)彈(dan)性(xing)變(bian)形不足以完全填充這些間(jian)隙(xi)時，化工泵泄漏也就不可避免(mian)了(le)。在(zai)化工泵的(de)(de)墊(dian)圈選擇，安裝，維護及保養的(de)(de)過程(cheng)中，都要加強安全生(sheng)產意識，避免(mian)化工泵墊(dian)圈失效(xiao)的(de)(de)情(qing)況發生(sheng)。

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