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補(bu)(bu)償(chang)器(qi)(qi)(qi)習慣上(shang)也(ye)叫膨脹節,或(huo)伸(shen)縮(suo)節。由構成(cheng)其工(gong)作(zuo)主體(ti)的(de)波(bo)紋管(guan)(guan)(guan)(guan)(一種(zhong)(zhong)彈性元件(jian))和端管(guan)(guan)(guan)(guan)、支架(jia)、法(fa)蘭、導(dao)管(guan)(guan)(guan)(guan)等(deng)附件(jian)組成(cheng)。 屬于一種(zhong)(zhong)補(bu)(bu)償(chang)元件(jian)。利用其工(gong)作(zuo)主體(ti)波(bo)紋管(guan)(guan)(guan)(guan)的(de)有效伸(shen)縮(suo)變形,以(yi)吸收管(guan)(guan)(guan)(guan)線(xian)、導(dao)管(guan)(guan)(guan)(guan)、容(rong)器(qi)(qi)(qi)等(deng)由熱(re)(re)脹冷縮(suo)等(deng)原因(yin)而(er)產(chan)生的(de)尺寸變化,或(huo)補(bu)(bu)償(chang)管(guan)(guan)(guan)(guan)線(xian)、導(dao)管(guan)(guan)(guan)(guan)、容(rong)器(qi)(qi)(qi)等(deng)的(de)軸向(xiang)、橫向(xiang)和角向(xiang)位移。也(ye)可(ke)用于降噪減(jian)振(zhen)。在現代工(gong)業中用途廣泛。供(gong)熱(re)(re)上(shang),為了(le)防止(zhi)供(gong)熱(re)(re)管(guan)(guan)(guan)(guan)道(dao)升溫時,由于熱(re)(re)伸(shen)長或(huo)溫度應力而(er)引起管(guan)(guan)(guan)(guan)道(dao)變形或(huo)破(po)壞,需要在管(guan)(guan)(guan)(guan)道(dao)上(shang)設置補(bu)(bu)償(chang)器(qi)(qi)(qi),以(yi)補(bu)(bu)償(chang)管(guan)(guan)(guan)(guan)道(dao)的(de)熱(re)(re)伸(shen)長,從(cong)而(er)減(jian)小管(guan)(guan)(guan)(guan)壁的(de)應力和作(zuo)用在閥件(jian)或(huo)支架(jia)結構上(shang)的(de)作(zuo)用力。