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1.使用不鏽鋼波紋管截止閥 安an裝zhuang在zai船chuan舶bo動dong力li裝zhuang置zhi的de管guan路lu上shang,在zai使shi用yong過guo程cheng中zhong閥fa門men發fa生sheng了le閥fa杆gan處chu泄xie漏lou和he閥fa杆gan鏽xiu死si等deng問wen題ti,雖sui經jing修xiu複fu。但dan問wen題ti反fan複fu出chu現xian。經jing過guo分fen析xi故gu障zhang原yuan因yin,采cai取qu了le適shi宜yi的de解jie決jue方fang案an,消xiao除chu了le故gu障zhang,確que保bao了le閥fa門men的de性xing能neng。
2.問題分析
buxiugangbowenguanjiezhifaxielouyibanfenweineilouhewailouliangzhongqingkuang,yinqixieloudeyuanyinjiaoduo。neifenmiyibanshiyinshuyetijiezhizhonghanyougutizazhipohuaimifengmianyinqishixiao。jiehexianchangshiyongqingkuangfenxi,chuxianfaganwailoudeyuanyinzhuyaoyufamenjiegou、工作環境及使用操作方式有關。
jiegoufagancaiyongbowenguanjitianliaoshuangzhongmifengjiegou,bowenguanyuneichenhuanjiwaichenhuanhanjiechengbowenguanzujian,zaiyufaganjidaoxiangtihanjie,zuduanjiezhitongguofaganxiangwaishenlou。faganshangxiadeyidongjulipingjianⅠ向上運動,直至平鍵Ⅰ的上端麵與下填料的下端麵接觸。由於下填料采用的是PTFE材料,材質,若過度開啟閥門,將導致平鍵Ⅰ嵌qian入ru填tian料liao,閥fa門men再zai無wu法fa開kai啟qi和he關guan閉bi,並bing撞zhuang死si波bo紋wen管guan組zu件jian,造zao成cheng介jie質zhi沿yan閥fa杆gan處chu泄xie漏lou。波bo紋wen管guan的de拉la伸shen長chang度du及ji壓ya縮suo量liang是shi根gen據ju閥fa門men的de行xing程cheng確que定ding的de,如ru果guo超chao過guo極ji限xian拉la伸shen或huo壓ya縮suo,則ze有you可ke能neng損sun壞huai波bo紋wen管guan,造zao成cheng小xiao編bian管guan破po裂lie,密mi封feng失shi效xiao。因yin此ci需xu要yao增zeng加jia閥fa門men開kai啟qi及ji關guan閉bi的de限xian位wei裝zhuang置zhi,使shi得de閥fa門men啟qi閉bi過guo程cheng中zhong,波bo紋wen管guan一yi直zhi在zai設she計ji範fan圍wei內nei伸shen縮suo。
工(gong)作(zuo)環(huan)境(jing)波(bo)紋(wen)管(guan)截(jie)止(zhi)閥(fa)的(de)工(gong)作(zuo)環(huan)境(jing)惡(e)劣(lie)也(ye)是(shi)造(zao)成(cheng)其(qi)故(gu)障(zhang)的(de)一(yi)個(ge)原(yuan)因(yin)。由(you)於(yu)安(an)裝(zhuang)於(yu)船(chuan)體(ti)內(nei)的(de)波(bo)紋(wen)管(guan)截(jie)止(zhi)閥(fa)長(chang)期(qi)工(gong)作(zuo)於(yu)鹽(yan)霧(wu)環(huan)境(jing)內(nei),而(er)且(qie)上(shang)部(bu)常(chang)有(you)凝(ning)水(shui)滴(di)落(luo),造(zao)成(cheng)上(shang)部(bu)推(tui)力(li)球(qiu)軸(zhou)承(cheng)腐(fu)蝕(shi),嚴(yan)重(zhong)時(shi),導(dao)致(zhi)與(yu)閥(fa)杆(gan)接(jie)觸(chu)性(xing)腐(fu)蝕(shi)2.3操cao作zuo在zai使shi用yong中zhong如ru果guo過guo度du開kai啟qi或huo關guan閉bi波bo紋wen管guan截jie止zhi閥fa,則ze可ke能neng導dao致zhi閥fa門men不bu能neng滿man足zu有you關guan性xing能neng要yao求qiu。過guo度du關guan閉bi閥fa門men時shi,則ze有you可ke能neng壓ya壞huai密mi封feng麵mian,導dao致zhi閥fa門men再zai次ci使shi用yong時shi密mi封feng失shi效xiao。過guo度du開kai啟qi閥fa門men時shi,則ze可ke能neng操cao作zuo波bo紋wen管guan組zu件jian,造zao成cheng閥fa門men外wai漏lou。

3改進
經過分析閥門存在的問題,對其結構、操作及環境進行了改進。首先是增加平鍵Ⅰ的限位福利費,將PTFE材料的下填料詢問增加一個厚3㎜的不鏽鋼填料墊,以防止填料變弄髒及對閥杆限位。
zaifamenguanbishi,ruguochuxianfamenwufajieliushi,buyingjiadaliqiangzhiguanbi,ershikaiqifamen,yongliutichongshuayiduanshijianhouzaiciguanbi,fanfuzaici,rurengwufaguanbi,yingjianzhayanmomifengmian。zaifamenkaiqishi,dangfamenkaiqidaoyidinggaodu,faganyudaoxiaodezulihou,jinliangbuyaojixuqiangzhikaiqi,yiyanchangfaganjiqimifengzujiandeshouminga。faganshangbudaiyoutuiliqiuzhouchengdejiezhifa,zaianzhuangshi,yaojinliangbimianyouningjieshuizhijiediluoyufamendaozhifaganxiushideweizhi。
4.結語
波紋管截止閥改進後,沒有再次發生波紋管拉裂、閥杆鏽死及外漏等故障,使用情況良好。
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