該管(guan)道補償(chang)器(qi)由一個波(bo)紋(wen)管(guan)和(he)二(er)個端接管(guan)構成。 它通(tong)過波(bo)紋(wen)管(guan)的柔性變(bian)形來吸(xi)收管(guan)線(xian)軸向位移。其中(zhong)接管(guan)的二(er)端與(yu)管(guan)道相連；運輸(shu)固定螺(luo)栓是(shi)保證膨脹節在(zai)運輸(shu)過程中(zhong)波(bo)紋(wen)管(guan)的剛(gang)性支(zhi)承。