板(ban)式(shi)換(huan)熱機組具有高(gao)效、節能(neng)、智能(neng)化、自動(dong)化等(deng)優(you)點,可廣泛適用(yong)(yong)于工(gong)廠、機關(guan)、學校、住宅小(xiao)區、別墅等(deng)民(min)用(yong)(yong)建筑,商場、賓館、飯(fan)店、度假村等(deng)商用(yong)(yong)建筑的(de)(de)采暖、空(kong)調(diao)、洗浴(yu)用(yong)(yong)水、生(sheng)(sheng)活用(yong)(yong)水、游泳池冬日用(yong)(yong)水,也(ye)可用(yong)(yong)于制備工(gong)業生(sheng)(sheng)產工(gong)藝用(yong)(yong)水,以及各(ge)種需要換(huan)熱的(de)(de)場所.其(qi)用(yong)(yong)途廣泛,作用(yong)(yong)也(ye)十分顯著(zhu).今(jin)天小(xiao)編為大家介紹一下板(ban)式(shi)換(huan)熱機組外漏的(de)(de)產生(sheng)(sheng)原(yuan)因及處理方法.

　　產生原因:①夾(jia)緊尺寸(cun)不(bu)到位、各(ge)處尺寸(cun)不(bu)均勻(各(ge)處尺寸(cun)偏差不(bu)應大于3 mm)或夾(jia)緊螺栓松動.② 部分密(mi)(mi)封(feng)(feng)(feng)墊脫離(li)密(mi)(mi)封(feng)(feng)(feng)槽,密(mi)(mi)封(feng)(feng)(feng)墊主密(mi)(mi)封(feng)(feng)(feng)面有臟物,密(mi)(mi)封(feng)(feng)(feng)墊損壞或板(ban)(ban)(ban)式換(huan)熱器(qi)密(mi)(mi)封(feng)(feng)(feng)墊片(pian)老(lao)化.③ 板(ban)(ban)(ban)片(pian)發生變形,組裝錯(cuo)位引(yin)起跑墊.④在板(ban)(ban)(ban)片(pian)密(mi)(mi)封(feng)(feng)(feng)槽部位或二道密(mi)(mi)封(feng)(feng)(feng)區域有裂紋(wen).實例:北京、青海和新疆等地的多個熱力站均采用飽和蒸(zheng)(zheng)(zheng)汽(qi)作為一(yi)次側熱源供暖(nuan),由(you)于蒸(zheng)(zheng)(zheng)汽(qi)溫(wen)度較高,在設備運行初期系統不(bu)穩定的情況下,橡膠密(mi)(mi)封(feng)(feng)(feng)墊在高溫(wen)下失效,引(yin)起蒸(zheng)(zheng)(zheng)汽(qi)外(wai)漏.
　　處(chu)理方法:① 在無壓狀態(tai),按(an)制造廠提供的(de)夾緊尺(chi)寸(cun)重新(xin)(xin)夾緊設(she)備(bei),尺(chi)寸(cun)應均勻一(yi)(yi)致,壓緊尺(chi)寸(cun)的(de)偏差(cha)應不大于±0.2N (mm)(N.為板(ban)(ban)(ban)片(pian)(pian)總(zong)數(shu)),兩(liang)壓緊板(ban)(ban)(ban)間的(de)平(ping)行度應保持在2 mm 以內(nei).② 在外漏(lou)部位上做好標記,然后換(huan)熱(re)器(qi)解(jie)體逐一(yi)(yi)排查解(jie)決,重新(xin)(xin)裝(zhuang)配或更(geng)換(huan)墊片(pian)(pian)和板(ban)(ban)(ban)片(pian)(pian).③ 將(jiang)開換(huan)熱(re)器(qi)解(jie)體,對板(ban)(ban)(ban)片(pian)(pian)變(bian)形(xing)部位進行修(xiu)理或者(zhe)更(geng)換(huan)板(ban)(ban)(ban)片(pian)(pian).在沒有板(ban)(ban)(ban)片(pian)(pian)備(bei)件(jian)時可將(jiang)變(bian)形(xing)部位板(ban)(ban)(ban)片(pian)(pian)暫時拆(chai)除(chu)后重新(xin)(xin)組(zu)裝(zhuang)使用.④ 重新(xin)(xin)組(zu)裝(zhuang)拆(chai)開的(de)板(ban)(ban)(ban)片(pian)(pian)時,應清潔板(ban)(ban)(ban)面,防止污物(wu)粘(zhan)附著于墊片(pian)(pian)密封面.

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