補償器(qi)習慣上(shang)(shang)也叫膨(peng)脹節(jie),或伸(shen)縮(suo)(suo)節(jie)。由(you)構成其(qi)工(gong)作(zuo)主體的波(bo)紋管(guan)(guan)(一種(zhong)彈(dan)性元件(jian))和(he)端管(guan)(guan)、支架、法蘭、導管(guan)(guan)等(deng)(deng)附(fu)件(jian)組(zu)成。 屬(shu)于(yu)一種(zhong)補償元件(jian)。利用(yong)其(qi)工(gong)作(zuo)主體波(bo)紋管(guan)(guan)的有效伸(shen)縮(suo)(suo)變(bian)形(xing),以吸(xi)收管(guan)(guan)線(xian)、導管(guan)(guan)、容器(qi)等(deng)(deng)由(you)熱(re)脹冷縮(suo)(suo)等(deng)(deng)原因(yin)而產(chan)生(sheng)的尺寸變(bian)化(hua),或補償管(guan)(guan)線(xian)、導管(guan)(guan)、容器(qi)等(deng)(deng)的軸向、橫向和(he)角向位移。也可用(yong)于(yu)降噪減振。在現(xian)代工(gong)業中用(yong)途廣泛(fan)。供熱(re)上(shang)(shang),為了防止(zhi)供熱(re)管(guan)(guan)道升溫(wen)時,由(you)于(yu)熱(re)伸(shen)長或溫(wen)度(du)應力而引起管(guan)(guan)道變(bian)形(xing)或破壞,需要在管(guan)(guan)道上(shang)(shang)設置補償器(qi),以補償管(guan)(guan)道的熱(re)伸(shen)長,從(cong)而減小管(guan)(guan)壁的應力和(he)作(zuo)用(yong)在閥件(jian)或支架結構上(shang)(shang)的作(zuo)用(yong)力。