①. 單(dan)式鉸(jiao)鏈型膨脹節,由一個波紋管及銷軸和鉸(jiao)鏈板(ban)組成,用于吸收(shou)單(dan)平面角位移(yi)[圖9-12(a)]。


  ②. 單式萬向鉸鏈型膨(peng)脹(zhang)節,由一個(ge)波(bo)紋管及萬向環、銷(xiao)軸和鉸鏈板組成,能吸收多平面角位移[圖(tu)9-12(b)]。


  ③. 復式拉(la)桿型膨脹節,由用中間管(guan)連接的(de)兩個波紋管(guan)及拉(la)桿組成,能吸收(shou)多平面橫向(xiang)(xiang)位移(yi)和拉(la)桿間膨脹節本身的(de)軸(zhou)向(xiang)(xiang)位移(yi)。


  ④. 復(fu)式鉸(jiao)鏈型膨(peng)脹節,由用中間管連(lian)接(jie)的兩個(ge)波紋管及銷(xiao)軸和鉸(jiao)鏈板組(zu)成(cheng),能吸收單平面(mian)橫(heng)向位(wei)(wei)移和膨(peng)脹節本(ben)身的軸向位(wei)(wei)移。


  ⑤. 復式萬向(xiang)鉸鏈型膨脹節(jie),由用中間管連接的兩個波紋(wen)管及銷(xiao)軸和鉸鏈板組(zu)成,能(neng)吸(xi)收互相垂直的兩個平面橫向(xiang)位移和膨脹節(jie)本身的


  ⑥. 彎管(guan)壓力(li)平衡(heng)型膨脹節,由(you)一個(ge)工(gong)作波(bo)(bo)(bo)紋(wen)管(guan)或(huo)用中間(jian)(jian)連接(jie)的兩(liang)個(ge)工(gong)作波(bo)(bo)(bo)紋(wen)管(guan)及一個(ge)平衡(heng)波(bo)(bo)(bo)紋(wen)管(guan)構(gou)成(cheng),工(gong)作波(bo)(bo)(bo)紋(wen)管(guan)與平衡(heng)波(bo)(bo)(bo)紋(wen)管(guan)間(jian)(jian)裝(zhuang)(zhuang)有(you)彎頭或(huo)三通,平衡(heng)波(bo)(bo)(bo)紋(wen)管(guan)一端有(you)封(feng)頭并(bing)承受管(guan)道內(nei)壓,工(gong)作波(bo)(bo)(bo)紋(wen)管(guan)和平衡(heng)波(bo)(bo)(bo)紋(wen)管(guan)外端間(jian)(jian)裝(zhuang)(zhuang)有(you)拉(la)桿。此種膨脹節能吸收軸向(xiang)(xiang)位移和/或(huo)橫向(xiang)(xiang)位移。拉(la)桿能約束波(bo)(bo)(bo)紋(wen)管(guan)壓力(li)、推力(li)。常(chang)用于管(guan)道方向(xiang)(xiang)改變處。


  ⑦. 直管(guan)壓力(li)(li)平衡型膨脹節,一(yi)般由位于(yu)(yu)兩端的(de)兩個(ge)工(gong)(gong)(gong)作波(bo)紋(wen)(wen)(wen)管(guan)及有(you)效(xiao)(xiao)面(mian)積等于(yu)(yu)兩倍工(gong)(gong)(gong)作波(bo)紋(wen)(wen)(wen)管(guan)有(you)效(xiao)(xiao)面(mian)積、位于(yu)(yu)中間的(de)一(yi)個(ge)平衡波(bo)紋(wen)(wen)(wen)管(guan)組(zu)成,兩套拉桿(gan)分別將每(mei)一(yi)個(ge)工(gong)(gong)(gong)作波(bo)紋(wen)(wen)(wen)管(guan)與平衡波(bo)紋(wen)(wen)(wen)管(guan)相(xiang)互連接起來。此(ci)種(zhong)膨脹節能(neng)吸收軸向位移。拉桿(gan)能(neng)約束波(bo)紋(wen)(wen)(wen)管(guan)壓力(li)(li)、推力(li)(li)。


  ⑧. 帶約束的金屬波紋管膨脹節(jie)(jie)的共同特點是(shi)管道的內(nei)壓(ya)推力(俗稱盲板力)沒有(you)作用(yong)(yong)于固定(ding)點或限位點處(chu),而(er)是(shi)由約束波紋管膨脹節(jie)(jie)用(yong)(yong)的金屬部件承(cheng)受。


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