①. 單式鉸鏈(lian)(lian)型(xing)膨脹節,由(you)一個波紋管及銷軸和(he)鉸鏈(lian)(lian)板組成(cheng),用于吸(xi)收單平面角位移[圖9-12(a)]。
②. 單式萬向鉸(jiao)鏈型膨(peng)脹節,由一(yi)個波(bo)紋管(guan)及萬向環、銷軸(zhou)和鉸(jiao)鏈板(ban)組成,能吸收多平(ping)面角位移[圖9-12(b)]。
③. 復式拉(la)(la)桿型膨(peng)脹節,由(you)用中間管(guan)(guan)連接(jie)的兩個波(bo)紋管(guan)(guan)及拉(la)(la)桿組(zu)成(cheng),能吸(xi)收多平面(mian)橫向(xiang)位移和拉(la)(la)桿間膨(peng)脹節本身的軸向(xiang)位移。
④. 復(fu)式鉸鏈型(xing)膨脹節,由用中(zhong)間管連接的兩個(ge)波紋管及(ji)銷軸和(he)鉸鏈板(ban)組成,能吸(xi)收單平面橫(heng)向位移和(he)膨脹節本身的軸向位移。
⑤. 復式萬向(xiang)鉸(jiao)鏈型膨(peng)(peng)脹節,由用中間管(guan)連接(jie)的(de)兩(liang)個(ge)波紋(wen)管(guan)及銷軸和鉸(jiao)鏈板組成,能吸收互相垂(chui)直的(de)兩(liang)個(ge)平(ping)面橫向(xiang)位移和膨(peng)(peng)脹節本(ben)身的(de)
⑥. 彎(wan)管壓力平(ping)衡(heng)(heng)(heng)型膨脹節(jie),由一個(ge)(ge)工(gong)作(zuo)波(bo)紋(wen)(wen)(wen)管或用中間連(lian)接(jie)的兩個(ge)(ge)工(gong)作(zuo)波(bo)紋(wen)(wen)(wen)管及(ji)一個(ge)(ge)平(ping)衡(heng)(heng)(heng)波(bo)紋(wen)(wen)(wen)管構成,工(gong)作(zuo)波(bo)紋(wen)(wen)(wen)管與平(ping)衡(heng)(heng)(heng)波(bo)紋(wen)(wen)(wen)管間裝(zhuang)有(you)彎(wan)頭或三通,平(ping)衡(heng)(heng)(heng)波(bo)紋(wen)(wen)(wen)管一端有(you)封頭并承受管道(dao)內壓,工(gong)作(zuo)波(bo)紋(wen)(wen)(wen)管和(he)(he)平(ping)衡(heng)(heng)(heng)波(bo)紋(wen)(wen)(wen)管外端間裝(zhuang)有(you)拉(la)桿(gan)。此種膨脹節(jie)能吸(xi)收軸向(xiang)位(wei)移和(he)(he)/或橫(heng)向(xiang)位(wei)移。拉(la)桿(gan)能約(yue)束波(bo)紋(wen)(wen)(wen)管壓力、推力。常(chang)用于管道(dao)方向(xiang)改變處。
⑦. 直管(guan)壓力(li)(li)平衡(heng)型(xing)膨(peng)脹(zhang)節,一般(ban)由位(wei)于(yu)(yu)兩(liang)(liang)端(duan)的兩(liang)(liang)個工(gong)作波紋(wen)管(guan)及有效面(mian)積(ji)等于(yu)(yu)兩(liang)(liang)倍工(gong)作波紋(wen)管(guan)有效面(mian)積(ji)、位(wei)于(yu)(yu)中(zhong)間的一個平衡(heng)波紋(wen)管(guan)組成(cheng),兩(liang)(liang)套(tao)拉(la)桿分別將每一個工(gong)作波紋(wen)管(guan)與平衡(heng)波紋(wen)管(guan)相(xiang)互連(lian)接起來。此種膨(peng)脹(zhang)節能吸收軸(zhou)向位(wei)移。拉(la)桿能約束波紋(wen)管(guan)壓力(li)(li)、推(tui)力(li)(li)。
⑧. 帶約束的金(jin)屬波(bo)紋管膨脹(zhang)(zhang)節的共同特點是(shi)管道的內壓(ya)推力(俗稱盲板力)沒有作用(yong)于固(gu)定點或限位點處(chu),而(er)是(shi)由約束波(bo)紋管膨脹(zhang)(zhang)節用(yong)的金(jin)屬部(bu)件承受。


