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蒸汽伸縮節

為常見的軸(zhou)向(xiang)式波(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)膨(peng)(peng)(peng)脹(zhang)節,用(yong)(yong)(yong)在(zai)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)上(shang)進行軸(zhou)向(xiang)長(chang)度補(bu)償。為了防止超過允許(xu)的補(bu)償量,在(zai)波(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)兩(liang)端設置有(you)保護(hu)拉桿或保護(hu)環(huan),在(zai)與它連(lian)接的兩(liang)端管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)上(shang)設置導(dao)向(xiang)支架。另(ling)外還有(you)轉角(jiao)式和(he)橫(heng)向(xiang)式膨(peng)(peng)(peng)脹(zhang)節,可(ke)用(yong)(yong)(yong)來補(bu)償管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)的轉角(jiao)變(bian)形和(he)橫(heng)向(xiang)變(bian)形。這(zhe)(zhe)類(lei)膨(peng)(peng)(peng)脹(zhang)節的優點是節省空(kong)間,節約材料,便于(yu)(yu)標準化和(he)批量生(sheng)產(chan),缺點是壽(shou)命較(jiao)短(duan)。波(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)膨(peng)(peng)(peng)脹(zhang)節一般用(yong)(yong)(yong)于(yu)(yu)溫度和(he)壓力(li)不很高、長(chang)度較(jiao)短(duan)的管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)上(shang)。隨著波(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)生(sheng)產(chan)技術水平的提(ti)高,這(zhe)(zhe)類(lei)膨(peng)(peng)(peng)脹(zhang)節的應用(yong)(yong)(yong)范圍(wei)正(zheng)在(zai)擴大。目前,波(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)膨(peng)(peng)(peng)脹(zhang)節可(ke)用(yong)(yong)(yong)在(zai)最高壓力(li)6.0兆帕的管(guan)(guan)(guan)(guan)(guan)(guan)系(xi)中。


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