金屬(shu)軟管的選(xuan)型五要(yao)素
(1)尺寸軟(ruan)管公稱通徑(jing),選用接頭型(xing)式(主要有法蘭(lan)聯接、螺紋連(lian)(lian)接、快速接頭連(lian)(lian)接)及金屬軟(ruan)管的尺寸,軟(ruan)管長度。
(2)壓力 根據軟(ruan)管實際工作壓力,再(zai)查詢波紋金(jin)屬軟(ruan)管的公稱通(tong)徑與壓力表,決(jue)定是否使(shi)用不銹鋼網(wang)套類型的金(jin)屬軟(ruan)管。
(3)介(jie)質 軟(ruan)(ruan)管(guan)(guan)(guan)中所輸送的(de)介(jie)質的(de)化學屬性,按(an)軟(ruan)(ruan)管(guan)(guan)(guan)材質耐(nai)腐蝕性能,決定軟(ruan)(ruan)管(guan)(guan)(guan)各零件的(de)材質。
(4)溫(wen)(wen)(wen)度(du) 軟(ruan)管內介質的工作溫(wen)(wen)(wen)度(du)及范圍(wei);軟(ruan)管工作時(shi)的環境溫(wen)(wen)(wen)度(du)。高溫(wen)(wen)(wen)時(shi),須按(an)金屬軟(ruan)管高溫(wen)(wen)(wen)下的工作壓(ya)力溫(wen)(wen)(wen)度(du)修(xiu)正系數,確(que)定溫(wen)(wen)(wen)度(du)修(xiu)正后(hou)的壓(ya)力,以確(que)定選用(yong)正確(que)的壓(ya)力等級。
(5)狀(zhuang)態(tai) 按軟(ruan)管(guan)(guan)(guan)(guan)使(shi)用(yong)(yong)時的狀(zhuang)態(tai),參(can)照(zhao)金(jin)屬(shu)軟(ruan)管(guan)(guan)(guan)(guan)的正(zheng)確使(shi)用(yong)(yong)與安裝方(fang)法(fa)與軟(ruan)管(guan)(guan)(guan)(guan)在沉降補(bu)償時的最佳長度.軟(ruan)管(guan)(guan)(guan)(guan)各種運動狀(zhuang)態(tai)的長度計算及軟(ruan)管(guan)(guan)(guan)(guan)的最小彎曲(qu)次數和最小彎曲(qu)半(ban)徑等因(yin)素(su),參(can)數正(zheng)確選(xuan)取(qu)軟(ruan)管(guan)(guan)(guan)(guan)長度,并正(zheng)確安裝。