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補(bu)(bu)(bu)償器習慣上(shang)也(ye)叫膨脹(zhang)節,或(huo)伸(shen)(shen)縮節。由(you)(you)構成(cheng)其工作(zuo)主(zhu)體的(de)(de)(de)波(bo)紋(wen)管(guan)(guan)(guan)(一種彈(dan)性元(yuan)(yuan)件(jian)(jian))和端管(guan)(guan)(guan)、支架、法蘭、導(dao)管(guan)(guan)(guan)等(deng)附(fu)件(jian)(jian)組成(cheng)。 屬于一種補(bu)(bu)(bu)償元(yuan)(yuan)件(jian)(jian)。利用(yong)其工作(zuo)主(zhu)體波(bo)紋(wen)管(guan)(guan)(guan)的(de)(de)(de)有效(xiao)伸(shen)(shen)縮變形,以吸收管(guan)(guan)(guan)線、導(dao)管(guan)(guan)(guan)、容器等(deng)由(you)(you)熱(re)(re)(re)脹(zhang)冷縮等(deng)原(yuan)因而(er)產生的(de)(de)(de)尺寸變化(hua),或(huo)補(bu)(bu)(bu)償管(guan)(guan)(guan)線、導(dao)管(guan)(guan)(guan)、容器等(deng)的(de)(de)(de)軸(zhou)向、橫向和角向位移(yi)。也(ye)可用(yong)于降噪減振。在現代工業中用(yong)途(tu)廣泛。供熱(re)(re)(re)上(shang),為了(le)防止供熱(re)(re)(re)管(guan)(guan)(guan)道(dao)升(sheng)溫(wen)時,由(you)(you)于熱(re)(re)(re)伸(shen)(shen)長(chang)或(huo)溫(wen)度應(ying)力而(er)引起(qi)管(guan)(guan)(guan)道(dao)變形或(huo)破壞,需(xu)要在管(guan)(guan)(guan)道(dao)上(shang)設置補(bu)(bu)(bu)償器,以補(bu)(bu)(bu)償管(guan)(guan)(guan)道(dao)的(de)(de)(de)熱(re)(re)(re)伸(shen)(shen)長(chang),從而(er)減小管(guan)(guan)(guan)壁(bi)的(de)(de)(de)應(ying)力和作(zuo)用(yong)在閥件(jian)(jian)或(huo)支架結構上(shang)的(de)(de)(de)作(zuo)用(yong)力。