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補(bu)(bu)(bu)償器(qi)習慣上(shang)(shang)也叫膨(peng)脹(zhang)節(jie),或(huo)(huo)伸縮(suo)節(jie)。由(you)構成其工(gong)作(zuo)(zuo)主(zhu)體的(de)波紋管(guan)(guan)(guan)(一種(zhong)彈(dan)性元件(jian)(jian))和端管(guan)(guan)(guan)、支架(jia)、法(fa)蘭、導管(guan)(guan)(guan)等附件(jian)(jian)組成。 屬于一種(zhong)補(bu)(bu)(bu)償元件(jian)(jian)。利用(yong)其工(gong)作(zuo)(zuo)主(zhu)體波紋管(guan)(guan)(guan)的(de)有效伸縮(suo)變形(xing),以吸收管(guan)(guan)(guan)線、導管(guan)(guan)(guan)、容器(qi)等由(you)熱脹(zhang)冷(leng)縮(suo)等原因而產(chan)生的(de)尺寸變化,或(huo)(huo)補(bu)(bu)(bu)償管(guan)(guan)(guan)線、導管(guan)(guan)(guan)、容器(qi)等的(de)軸向、橫向和角向位移。也可用(yong)于降噪減振。在現(xian)代工(gong)業中用(yong)途(tu)廣泛(fan)。供(gong)熱上(shang)(shang),為了防止(zhi)供(gong)熱管(guan)(guan)(guan)道(dao)(dao)升溫時,由(you)于熱伸長(chang)或(huo)(huo)溫度應力而引起(qi)管(guan)(guan)(guan)道(dao)(dao)變形(xing)或(huo)(huo)破壞,需要在管(guan)(guan)(guan)道(dao)(dao)上(shang)(shang)設置(zhi)補(bu)(bu)(bu)償器(qi),以補(bu)(bu)(bu)償管(guan)(guan)(guan)道(dao)(dao)的(de)熱伸長(chang),從而減小管(guan)(guan)(guan)壁的(de)應力和作(zuo)(zuo)用(yong)在閥件(jian)(jian)或(huo)(huo)支架(jia)結構上(shang)(shang)的(de)作(zuo)(zuo)用(yong)力。