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補(bu)償(chang)器習(xi)慣上也(ye)叫膨脹節,或(huo)(huo)(huo)伸縮(suo)節。由(you)構(gou)(gou)成其工作(zuo)主體的波紋管(guan)(guan)(guan)(guan)(一種彈性元件(jian))和端管(guan)(guan)(guan)(guan)、支(zhi)(zhi)架(jia)、法蘭、導管(guan)(guan)(guan)(guan)等(deng)附件(jian)組成。 屬于一種補(bu)償(chang)元件(jian)。利(li)用(yong)其工作(zuo)主體波紋管(guan)(guan)(guan)(guan)的有效伸縮(suo)變(bian)形,以(yi)吸(xi)收(shou)管(guan)(guan)(guan)(guan)線(xian)、導管(guan)(guan)(guan)(guan)、容(rong)器等(deng)由(you)熱(re)(re)脹冷縮(suo)等(deng)原因而產生的尺寸(cun)變(bian)化(hua),或(huo)(huo)(huo)補(bu)償(chang)管(guan)(guan)(guan)(guan)線(xian)、導管(guan)(guan)(guan)(guan)、容(rong)器等(deng)的軸向(xiang)、橫(heng)向(xiang)和角向(xiang)位移。也(ye)可(ke)用(yong)于降噪(zao)減(jian)振(zhen)。在(zai)現代(dai)工業中用(yong)途廣泛。供熱(re)(re)上,為(wei)了防止(zhi)供熱(re)(re)管(guan)(guan)(guan)(guan)道(dao)升(sheng)溫(wen)(wen)時,由(you)于熱(re)(re)伸長或(huo)(huo)(huo)溫(wen)(wen)度(du)應(ying)力(li)而引起(qi)管(guan)(guan)(guan)(guan)道(dao)變(bian)形或(huo)(huo)(huo)破壞(huai),需(xu)要在(zai)管(guan)(guan)(guan)(guan)道(dao)上設(she)置補(bu)償(chang)器,以(yi)補(bu)償(chang)管(guan)(guan)(guan)(guan)道(dao)的熱(re)(re)伸長,從而減(jian)小管(guan)(guan)(guan)(guan)壁的應(ying)力(li)和作(zuo)用(yong)在(zai)閥件(jian)或(huo)(huo)(huo)支(zhi)(zhi)架(jia)結構(gou)(gou)上的作(zuo)用(yong)力(li)。