套筒式補償器的疲勞壽命與管道相當

    套筒補(bu)(bu)償(chang)(chang)(chang)器(qi)(qi)(qi)(qi)稱管(guan)式伸縮節，是(shi)(shi)(shi)熱流(liu)體管(guan)道的(de)(de)(de)補(bu)(bu)償(chang)(chang)(chang)裝置，主要用于直(zhi)線管(guan)道輔設后出現(xian)的(de)(de)(de)軸向(xiang)熱膨脹(zhang)位移吸收補(bu)(bu)償(chang)(chang)(chang)，是(shi)(shi)(shi)一種直(zhi)接安裝在任(ren)何輸送(song)無腐蝕的(de)(de)(de)單向(xiang)或多向(xiang)流(liu)體的(de)(de)(de)管(guan)道之中的(de)(de)(de)補(bu)(bu)償(chang)(chang)(chang)器(qi)(qi)(qi)(qi)。套筒式補(bu)(bu)償(chang)(chang)(chang)器(qi)(qi)(qi)(qi)廣泛(fan)用于城鎮(zhen)供(gong)暖(nuan)、冶金(jin)、礦山、發電、石油化工、建筑等(deng)行業的(de)(de)(de)輸送(song)管(guan)道中。主要有套筒(芯管(guan))，外殼(ke)，密(mi)封材料等(deng)組成。供(gong)熱套筒補(bu)(bu)償(chang)(chang)(chang)器(qi)(qi)(qi)(qi)分為單向(xiang)型和雙向(xiang)型補(bu)(bu)償(chang)(chang)(chang)結(jie)構。雙向(xiang)型的(de)(de)(de)特(te)(te)點(dian)是(shi)(shi)(shi)無論來(lai)自補(bu)(bu)償(chang)(chang)(chang)器(qi)(qi)(qi)(qi)的(de)(de)(de)介質(zhi)流(liu)量(liang)如何，補(bu)(bu)償(chang)(chang)(chang)器(qi)(qi)(qi)(qi)兩(liang)端(duan)的(de)(de)(de)滑(hua)動套筒總是(shi)(shi)(shi)可以自由滑(hua)動，實現(xian)雙向(xiang)補(bu)(bu)償(chang)(chang)(chang)效果并(bing)增(zeng)加(jia)補(bu)(bu)償(chang)(chang)(chang)量(liang)。而(er)單向(xiang)型補(bu)(bu)償(chang)(chang)(chang)器(qi)(qi)(qi)(qi)的(de)(de)(de)特(te)(te)點(dian)是(shi)(shi)(shi)介質(zhi)只能從補(bu)(bu)償(chang)(chang)(chang)器(qi)(qi)(qi)(qi)一端(duan)流(liu)入，補(bu)(bu)償(chang)(chang)(chang)器(qi)(qi)(qi)(qi)的(de)(de)(de)滑(hua)動套筒一端(duan)滑(hua)動起到補(bu)(bu)償(chang)(chang)(chang)作用。

    套(tao)(tao)筒(tong)(tong)(tong)(tong)式(shi)(shi)補(bu)償器(qi)(qi)的(de)(de)內套(tao)(tao)筒(tong)(tong)(tong)(tong)與管道連接，采(cai)用(yong)高性(xing)(xing)能(neng)(neng)自壓(ya)式(shi)(shi)動(dong)密封的(de)(de)原理與結構(gou)，它可(ke)(ke)以隨著管道的(de)(de)伸縮(suo)(suo)在(zai)(zai)外(wai)殼(ke)內進行自由滑動(dong)，能(neng)(neng)適(shi)應(ying)任何管道的(de)(de)密封要求。外(wai)殼(ke)與內套(tao)(tao)筒(tong)(tong)(tong)(tong)之間(jian)采(cai)用(yong)新(xin)(xin)型合成(cheng)材(cai)料密封，能(neng)(neng)耐(nai)高溫(wen),防腐蝕(shi)(shi)抗老(lao)化，適(shi)用(yong)溫(wen)度(du)-40至(zhi)150°，特(te)(te)殊情(qing)況下可(ke)(ke)達350°。既能(neng)(neng)保(bao)證軸向滑動(dong)又能(neng)(neng)保(bao)證管內介質不泄(xie)漏。套(tao)(tao)筒(tong)(tong)(tong)(tong)式(shi)(shi)補(bu)償器(qi)(qi)設計了防拉(la)斷裝置，可(ke)(ke)保(bao)證在(zai)(zai)其伸縮(suo)(suo)到極(ji)限(xian)位置時(shi)不被拉(la)開，從(cong)而(er)使整個(ge)管網運行的(de)(de)安全性(xing)(xing)大(da)大(da)提高。套(tao)(tao)筒(tong)(tong)(tong)(tong)式(shi)(shi)補(bu)償器(qi)(qi)適(shi)用(yong)于(yu)介質工程(cheng)壓(ya)力(li)≤2.5MPa，介質溫(wen)度(du)-40℃~600℃。套(tao)(tao)筒(tong)(tong)(tong)(tong)式(shi)(shi)補(bu)償器(qi)(qi)采(cai)用(yong)新(xin)(xin)型的(de)(de)密封材(cai)料柔性(xing)(xing)石墨(mo)環(huan)(huan)，其具有強度(du)大(da)，摩擦(ca)系數小(xiao)(0.04~0.10)，不老(lao)化，效(xiao)果好(hao)，維修(xiu)方便等特(te)(te)點。套(tao)(tao)筒(tong)(tong)(tong)(tong)式(shi)(shi)補(bu)償器(qi)(qi)的(de)(de)使用(yong)壽命(ming)大(da)，疲勞壽命(ming)與管道相當(dang)。滑動(dong)表面經特(te)(te)殊處理，在(zai)(zai)鹽水(shui)、鹽溶液等環(huan)(huan)境下耐(nai)腐蝕(shi)(shi)性(xing)(xing)能(neng)(neng)好(hao)，比(bi)奧氏(shi)體不銹鋼高50倍(bei)以上。同時(shi)，多(duo)年后因磨損導致密封效(xiao)果減弱時(shi)，可(ke)(ke)再次緊固法蘭(lan)，增強密封性(xing)(xing)能(neng)(neng)，也(ye)可(ke)(ke)將螺栓松開，取下壓(ya)圈，再裝進一層(ceng)或(huo)兩層(ceng)密封環(huan)(huan)，壓(ya)緊壓(ya)圈，繼(ji)續使用(yong)。套(tao)(tao)筒(tong)(tong)(tong)(tong)式(shi)(shi)補(bu)償器(qi)(qi)對氯離子含量無要求，特(te)(te)別(bie)適(shi)用(yong)于(yu)介質或(huo)周圍(wei)環(huan)(huan)境氯離子超標(biao)的(de)(de)系統上。直埋型套(tao)(tao)筒(tong)(tong)(tong)(tong)式(shi)(shi)補(bu)償器(qi)(qi)能(neng)(neng)直埋于(yu)地下，安裝時(shi)可(ke)(ke)不設置維修(xiu)井(jing)，工程(cheng)造價低。