在线亚洲日产一区二区-高清在线

管道按公稱壓力和設計溫度分類明細

按管(guan)(guan)道(dao)的(de)(de)公(gong)(gong)稱(cheng)(cheng)壓(ya)(ya)力(li)(li)劃分時，習慣(guan)上將真空管(guan)(guan)道(dao)與低壓(ya)(ya)管(guan)(guan)道(dao)合并。凡(fan)公(gong)(gong)稱(cheng)(cheng)壓(ya)(ya)力(li)(li)小于2.5MPa的(de)(de)管(guan)(guan)道(dao)稱(cheng)(cheng)為(wei)(wei)(wei)低壓(ya)(ya)管(guan)(guan)道(dao)；公(gong)(gong)稱(cheng)(cheng)壓(ya)(ya)力(li)(li)為(wei)(wei)(wei)4～6.4MPa的(de)(de)管(guan)(guan)道(dao)稱(cheng)(cheng)為(wei)(wei)(wei)中壓(ya)(ya)管(guan)(guan)道(dao)；公(gong)(gong)稱(cheng)(cheng)壓(ya)(ya)力(li)(li)為(wei)(wei)(wei)10～100MPa的(de)(de)管(guan)(guan)道(dao)稱(cheng)(cheng)為(wei)(wei)(wei)高壓(ya)(ya)管(guan)(guan)道(dao)；公(gong)(gong)稱(cheng)(cheng)壓(ya)(ya)力(li)(li)大于100MPa的(de)(de)管(guan)(guan)道(dao)稱(cheng)(cheng)為(wei)(wei)(wei)超高壓(ya)(ya)管(guan)(guan)道(dao)。按管(guan)(guan)道(dao)工作...

管子按用途、材質、直管工藝分類

按用(yong)(yong)(yong)(yong)途(tu)分類（表4.1.1）輸(shu)送用(yong)(yong)(yong)(yong)及傳(chuan)熱用(yong)(yong)(yong)(yong)：流體輸(shu)送用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)、長輸(shu)管(guan)(guan)(guan)(guan)(guan)(guan)道用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)，石油裂化用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)，化肥用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)，鍋爐用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)，換熱器用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)等(deng) 結構用(yong)(yong)(yong)(yong)：普通結構用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)，高(gao)強結構用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)，機械(xie)結構用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)等(deng) 特殊用(yong)(yong)(yong)(yong)：鉆井用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)，高(gao)壓(ya)氣體容器用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)等(deng)...

半管接頭、焊支管臺、螺紋支管臺及承插焊支管臺強度要求

1.半管接(jie)(jie)頭(tou)≤公稱直(zhi)徑50mm和主管公稱直(zhi)徑的(de)1/4，且(qie)設計(ji)(ji)壓力小(xiao)于或(huo)等于10MPa時，在接(jie)(jie)頭(tou)端部處(chu)最小(xiao)厚度≥表3.4.4的(de)厚度t，并符合圖3.4.9的(de)形式(shi)時，可免做(zuo)補(bu)強計(ji)(ji)算。2.選用對焊支(zhi)管臺、螺(luo)紋支(zhi)管臺及(ji)承插(cha)焊支(zhi)管臺（見圖3.4.10），應按設計(ji)(ji)壓力-溫度參數(shu)條件整體(ti)補(bu)強...

焊接支管補強板的計算安裝與工程應用

1.焊接(jie)支管(guan)(guan)的補(bu)強計(ji)算(suan)（如圖3.4.12所示），應符合(he)下列要(yao)求(qiu)。2.支管(guan)(guan)軸(zhou)線(xian)與(yu)主(zhu)(zhu)管(guan)(guan)軸(zhou)線(xian)斜交的結(jie)構型式，圖中支管(guan)(guan)軸(zhou)線(xian)與(yu)主(zhu)(zhu)管(guan)(guan)軸(zhou)線(xian)的夾角β應介于(yu)45°～90°。主(zhu)(zhu)管(guan)(guan)為焊接(jie)管(guan)(guan)時，焊縫應位于(yu)主(zhu)(zhu)管(guan)(guan)的斜下方(fang)。3.開(kai)(kai)孔(kong)補(bu)強面(mian)積(ji)的計(ji)算(suan)方(fang)法： ①.主(zhu)(zhu)管(guan)(guan)開(kai)(kai)孔(kong)需補(bu)強的面(mian)積(ji)A41，應按...

支管直接焊接到主管不需要進行補強的情況有哪些

符合(he)下列(lie)情況之一者，不(bu)需要進(jin)行補強計算，也不(bu)需要采取其(qi)他(ta)補強措施；（1）直接焊(han)于主管(guan)上的(de)螺紋及承插焊(han)半管(guan)箍（半管(guan)接頭(tou)），應符合(he)下列(lie)各(ge)項要求： ①.支管(guan)的(de)公稱直徑不(bu)應大于DN50； ②.支管(guan)的(de)外(wai)(wai)徑，與主管(guan)的(de)外(wai)(wai)徑之比(bi)小于或等于1/...

支管連接形式的選用與強度計算工程應用

1.某(mou)工程(cheng)施(shi)工時，由(you)于某(mou)管(guan)(guan)道的三通未采購到，業主(zhu)發(fa)聯絡單讓管(guan)(guan)道設計人員判斷在主(zhu)管(guan)(guan)直(zhi)接(jie)(jie)開孔焊(han)接(jie)(jie)支管(guan)(guan)是否可行。2.支管(guan)(guan)連接(jie)(jie)形式(shi)的選用(yong) 支管(guan)(guan)直(zhi)接(jie)(jie)焊(han)接(jie)(jie)在主(zhu)管(guan)(guan)上的支管(guan)(guan)連接(jie)(jie)，除下列情(qing)況(kuang)外，應進行開孔補(bu)強(qiang)校核(he)，并根據校核(he)結(jie)果采取相應的補(bu)強(qiang)措(cuo)施(shi)；支管(guan)(guan)通過加(jia)強(qiang)度接(jie)(jie)頭與(yu)主(zhu)管(guan)(guan)連接(jie)(jie)；支管(guan)(guan)...

法蘭強度的計算與工程應用

1.特殊要(yao)求的(de)非標準(zhun)法(fa)蘭(lan)(lan)(lan)(lan)可(ke)按GB/T150《壓(ya)(ya)(ya)力(li)容器》進行設計(ji)。 2.當法(fa)蘭(lan)(lan)(lan)(lan)除承受內壓(ya)(ya)(ya)外，還(huan)承受較大附加外荷(he)載(zai)（如重力(li)荷(he)載(zai)、位移荷(he)載(zai)等）時(shi)，可(ke)采用法(fa)蘭(lan)(lan)(lan)(lan)的(de)當量壓(ya)(ya)(ya)力(li)校核法(fa)蘭(lan)(lan)(lan)(lan)的(de)承載(zai)能(neng)力(li)，法(fa)蘭(lan)(lan)(lan)(lan)的(de)當量壓(ya)(ya)(ya)力(li)不(bu)宜大于法(fa)蘭(lan)(lan)(lan)(lan)的(de)許用工作壓(ya)(ya)(ya)力(li)。法(fa)蘭(lan)(lan)(lan)(lan)的(de)當量壓(ya)(ya)(ya)力(li)按下列公式確定：...

盲板厚度計算與工程應用

（1）夾(jia)在兩法蘭(lan)之(zhi)間的盲板(ban)如(ru)(ru)圖3.4.6所示，其計算厚(hou)度可按(an)式(shi)(shi)（3.4.22）確定。用(yong)整體鋼板(ban)制造時，式(shi)(shi)中焊接(jie)接(jie)頭系數(shu)E等于1。對于永久(jiu)性盲板(ban)應按(an)式(shi)(shi)（3.4.23）增(zeng)加厚(hou)度附加量。（2）GB／T20801對盲板(ban)厚(hou)度計算要求如(ru)(ru)下。（3）某試壓用(yong)盲板(ban)最(zui)小厚(hou)度計算工程應用(yong)某工程計算試...

平蓋厚度及強度計算方法

1.無(wu)拼(pin)接焊(han)縫平蓋厚度應(ying)按(an)式（3.4.20）及(ji)式（3.4.21）計算。注：①.坡口尺(chi)寸應(ying)符合有關的(de)規定。②.用于公稱(cheng)壓(ya)力(li)(li)小于或(huo)等(deng)于2.5MPa和公稱(cheng)直徑(jing)小于或(huo)等(deng)于400mm的(de)管(guan)道。③.只用于水壓(ya)試驗(yan)，公稱(cheng)直徑(jing)小于或(huo)等(deng)于400mm的(de)管(guan)道。④.用于公稱(cheng)壓(ya)力(li)(li)小于2.5MPa和...

非標準不銹鋼異徑管強度計算方法

1.無折邊的非標準(zhun)不銹鋼異(yi)徑管(guan)(guan)（圖(tu)3.4.3）的設計(ji)，應符合下列要求。 ①.無折邊的不銹鋼異(yi)徑管(guan)(guan)可采用鋼板卷焊，對偏心(xin)異(yi)徑管(guan)(guan)的焊縫(feng)宜位(wei)于(yu)如圖(tu)3.4.3（b）所示的位(wei)置。 ②.無折邊不銹鋼異(yi)徑管(guan)(guan)的設計(ji)壓力，應符合規范的規定。&n...

不銹鋼三通壁厚及強度計算方法

不銹鋼三通強度的(de)計算通常采用(yong)原(yuan)西(xi)德鍋(guo)爐規范TRD301中(zhong)的(de)壓力面積法計算公式。這種(zhong)(zhong)計算方(fang)法是(shi)在(zai)實驗(yan)基(ji)礎(chu)上（爆(bao)破(po)試驗(yan)等(deng)）通過理論分析推導而得，并經工程(cheng)實踐驗(yan)證，因此(ci)是(shi)可靠的(de)。不銹鋼三通產品標(biao)準(zhun)主(zhu)要選用(yong)ASMEB16.9等(deng)標(biao)準(zhun)。ASMEB31.3對各種(zhong)(zhong)不銹鋼三通、焊...

斜接彎管壁厚及強度計算方法

1.斜(xie)接彎(wan)頭（蝦(xia)米(mi)彎(wan)、蝦(xia)米(mi)腰(yao)）是常見的(de)一(yi)種(zhong)彎(wan)管型式。計算方法同(tong)ASMEB31.3-致。對蝦(xia)半腰(yao)的(de)使(shi)用(yong)范(fan)圍及(ji)結構上的(de)要(yao)求，國內外(wai)規定(ding)不(bu)一(yi)致。國內通常要(yao)求蝦(xia)米(mi)腰(yao)使(shi)用(yong)在溫度及(ji)壓力不(bu)太高的(de)情況(kuang)下。ASMEB31.3規定(ding)斜(xie)接角大(da)于22.5°時，不(bu)得(de)使(shi)用(yong)于劇烈(lie)循環工況(kuang)；斜(xie)接...

首頁上一頁 14 15 16 17 18 19 20 21 22 23 下一頁尾頁

在线亚洲日产一区二区

新聞中心