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補償(chang)(chang)器(qi)習慣上(shang)(shang)也(ye)叫膨(peng)脹節,或(huo)(huo)伸縮節。由(you)構(gou)成其工(gong)(gong)作(zuo)(zuo)主體(ti)的(de)波紋(wen)管(guan)(guan)(guan)(guan)(一(yi)種(zhong)彈性元(yuan)件(jian))和(he)端管(guan)(guan)(guan)(guan)、支架、法蘭、導(dao)(dao)管(guan)(guan)(guan)(guan)等(deng)附件(jian)組(zu)成。 屬于一(yi)種(zhong)補償(chang)(chang)元(yuan)件(jian)。利(li)用其工(gong)(gong)作(zuo)(zuo)主體(ti)波紋(wen)管(guan)(guan)(guan)(guan)的(de)有效伸縮變形,以(yi)吸(xi)收(shou)管(guan)(guan)(guan)(guan)線、導(dao)(dao)管(guan)(guan)(guan)(guan)、容器(qi)等(deng)由(you)熱(re)(re)脹冷縮等(deng)原因而(er)產(chan)生(sheng)的(de)尺寸變化,或(huo)(huo)補償(chang)(chang)管(guan)(guan)(guan)(guan)線、導(dao)(dao)管(guan)(guan)(guan)(guan)、容器(qi)等(deng)的(de)軸向(xiang)、橫(heng)向(xiang)和(he)角向(xiang)位移。也(ye)可(ke)用于降噪減振。在現(xian)代工(gong)(gong)業(ye)中(zhong)用途(tu)廣(guang)泛。供熱(re)(re)上(shang)(shang),為了防(fang)止供熱(re)(re)管(guan)(guan)(guan)(guan)道(dao)(dao)升溫時,由(you)于熱(re)(re)伸長(chang)或(huo)(huo)溫度(du)應力而(er)引起管(guan)(guan)(guan)(guan)道(dao)(dao)變形或(huo)(huo)破壞(huai),需要在管(guan)(guan)(guan)(guan)道(dao)(dao)上(shang)(shang)設置(zhi)補償(chang)(chang)器(qi),以(yi)補償(chang)(chang)管(guan)(guan)(guan)(guan)道(dao)(dao)的(de)熱(re)(re)伸長(chang),從而(er)減小管(guan)(guan)(guan)(guan)壁的(de)應力和(he)作(zuo)(zuo)用在閥件(jian)或(huo)(huo)支架結構(gou)上(shang)(shang)的(de)作(zuo)(zuo)用力。