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補(bu)償(chang)器習(xi)慣上(shang)也叫(jiao)膨(peng)脹節(jie),或(huo)(huo)(huo)伸縮(suo)節(jie)。由(you)構成其(qi)工作(zuo)(zuo)主(zhu)體的(de)(de)波紋管(guan)(guan)(guan)(guan)(guan)(guan)(一(yi)種彈性元件(jian)(jian))和端管(guan)(guan)(guan)(guan)(guan)(guan)、支(zhi)架、法蘭、導管(guan)(guan)(guan)(guan)(guan)(guan)等附件(jian)(jian)組成。 屬于一(yi)種補(bu)償(chang)元件(jian)(jian)。利用(yong)其(qi)工作(zuo)(zuo)主(zhu)體波紋管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)有效伸縮(suo)變形(xing),以吸收管(guan)(guan)(guan)(guan)(guan)(guan)線、導管(guan)(guan)(guan)(guan)(guan)(guan)、容器等由(you)熱脹冷縮(suo)等原因而產(chan)生(sheng)的(de)(de)尺寸變化,或(huo)(huo)(huo)補(bu)償(chang)管(guan)(guan)(guan)(guan)(guan)(guan)線、導管(guan)(guan)(guan)(guan)(guan)(guan)、容器等的(de)(de)軸(zhou)向、橫向和角向位移(yi)。也可用(yong)于降噪減振。在(zai)現代工業中用(yong)途廣泛。供熱上(shang),為(wei)了防止供熱管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)升溫時,由(you)于熱伸長或(huo)(huo)(huo)溫度應(ying)力(li)而引起管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)變形(xing)或(huo)(huo)(huo)破壞,需要在(zai)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)上(shang)設(she)置補(bu)償(chang)器,以補(bu)償(chang)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)的(de)(de)熱伸長,從(cong)而減小管(guan)(guan)(guan)(guan)(guan)(guan)壁的(de)(de)應(ying)力(li)和作(zuo)(zuo)用(yong)在(zai)閥(fa)件(jian)(jian)或(huo)(huo)(huo)支(zhi)架結(jie)構上(shang)的(de)(de)作(zuo)(zuo)用(yong)力(li)。