①. 單式鉸鏈(lian)型膨脹節(jie),由一個波紋管及(ji)銷軸和(he)鉸鏈(lian)板(ban)組(zu)成(cheng),用于吸收(shou)單平面角位(wei)移[圖9-12(a)]。
②. 單式萬(wan)向鉸鏈型(xing)膨脹節,由(you)一個波(bo)紋管及萬(wan)向環、銷(xiao)軸和(he)鉸鏈板組(zu)成,能(neng)吸收多平(ping)面角(jiao)位移[圖9-12(b)]。
③. 復式(shi)拉桿(gan)型膨(peng)脹節(jie),由用中間管(guan)連接的兩個波紋管(guan)及(ji)拉桿(gan)組成,能吸收多平(ping)面橫(heng)向位移和拉桿(gan)間膨(peng)脹節(jie)本(ben)身的軸向位移。
④. 復式鉸鏈(lian)型膨脹(zhang)節(jie),由用中間管連接的兩(liang)個波紋管及銷軸和鉸鏈(lian)板組成,能吸收單平面橫向(xiang)位(wei)移和膨脹(zhang)節(jie)本身(shen)的軸向(xiang)位(wei)移。
⑤. 復式萬(wan)向鉸鏈型膨脹(zhang)節,由用中間管連接的兩個波(bo)紋管及銷軸(zhou)和鉸鏈板組成,能吸(xi)收(shou)互相垂直(zhi)的兩個平面橫向位移(yi)和膨脹(zhang)節本身的
⑥. 彎管(guan)(guan)(guan)(guan)(guan)壓(ya)(ya)力(li)平(ping)(ping)衡型(xing)膨脹節(jie),由一個(ge)工(gong)作(zuo)波(bo)紋管(guan)(guan)(guan)(guan)(guan)或(huo)用(yong)中(zhong)間(jian)連接(jie)的兩個(ge)工(gong)作(zuo)波(bo)紋管(guan)(guan)(guan)(guan)(guan)及一個(ge)平(ping)(ping)衡波(bo)紋管(guan)(guan)(guan)(guan)(guan)構成(cheng),工(gong)作(zuo)波(bo)紋管(guan)(guan)(guan)(guan)(guan)與平(ping)(ping)衡波(bo)紋管(guan)(guan)(guan)(guan)(guan)間(jian)裝有(you)彎頭(tou)或(huo)三通,平(ping)(ping)衡波(bo)紋管(guan)(guan)(guan)(guan)(guan)一端(duan)(duan)有(you)封頭(tou)并承受管(guan)(guan)(guan)(guan)(guan)道(dao)內壓(ya)(ya),工(gong)作(zuo)波(bo)紋管(guan)(guan)(guan)(guan)(guan)和平(ping)(ping)衡波(bo)紋管(guan)(guan)(guan)(guan)(guan)外端(duan)(duan)間(jian)裝有(you)拉(la)桿。此(ci)種膨脹節(jie)能吸收軸向位(wei)移和/或(huo)橫向位(wei)移。拉(la)桿能約束波(bo)紋管(guan)(guan)(guan)(guan)(guan)壓(ya)(ya)力(li)、推力(li)。常用(yong)于管(guan)(guan)(guan)(guan)(guan)道(dao)方向改變處。
⑦. 直管(guan)(guan)(guan)(guan)壓力(li)平(ping)衡型膨(peng)脹節,一般由位于(yu)兩端的兩個(ge)工作(zuo)波紋(wen)(wen)管(guan)(guan)(guan)(guan)及有效面積等于(yu)兩倍工作(zuo)波紋(wen)(wen)管(guan)(guan)(guan)(guan)有效面積、位于(yu)中間(jian)的一個(ge)平(ping)衡波紋(wen)(wen)管(guan)(guan)(guan)(guan)組成,兩套拉桿分(fen)別將每一個(ge)工作(zuo)波紋(wen)(wen)管(guan)(guan)(guan)(guan)與平(ping)衡波紋(wen)(wen)管(guan)(guan)(guan)(guan)相互(hu)連接(jie)起來。此種膨(peng)脹節能(neng)吸收軸向位移(yi)。拉桿能(neng)約束波紋(wen)(wen)管(guan)(guan)(guan)(guan)壓力(li)、推力(li)。
⑧. 帶約束的金屬(shu)(shu)波(bo)紋(wen)(wen)管(guan)膨脹節的共同特點是管(guan)道的內壓(ya)推(tui)力(俗(su)稱盲(mang)板力)沒有作用于固定點或限位點處,而是由約束波(bo)紋(wen)(wen)管(guan)膨脹節用的金屬(shu)(shu)部(bu)件承受。