管道焊接识图PPT课件.pptx

ORIENTATION TRAINING1.PIPE CONNECT TO THE LIFE2.3ORIENTATION TRAININGDIRECTIONs 方位PROJECTION PLAIN 投影平面FLANGE ORIENTATION 法兰方位LEVEL GAUGE USAGE 水平尺的使用TRIANGLE CALCULATIONs 三角函数计算ELBOW RADIUS CALCULATIONs 弯头半径的计算SOCKET WELD GAP 承插焊的间隙CONTENT 目录目录.4ORIENTATION TRAININGDIRECTIONsNORTH(N):.北北SOUTH(S):.南南EAST (E):.东东WEST (W):.西西UP (U):.上上DOWN (D):.下下.5ORIENTATION TRAININGDIRECTIONsNORTHSOUTHWESTEASTUPDOWNWESTEASTSOUTHNORTHUPDOWN.6ORIENTATION TRAININGDIRECTIONsUPNORTHWESTNORTHNORTHWESTNORTHUP.7ORIENTATION TRAININGPROJECTION PLAIN投影平面投影平面HORIZONTAL and VERTICAL projection plains are used.我们使用水平和垂直投影平面来表示我们使用水平和垂直投影平面来表示HORIZONTAL projection plains are used for to show the angle and orientation on the flat position.水平投影面常用于表示在水平方向上的角度水平投影面常用于表示在水平方向上的角度VERTICAL projection plains are used for to show the angle and orientation on the upright position.垂直投影面常用于表示在竖直方向上的角度垂直投影面常用于表示在竖直方向上的角度.8ORIENTATION TRAININGWESTNORTH1523246246/1523=STan=9.17ITEM 4(ELBOW)SHALL BE TURN FROM WEST TO NORTH 9.17ITEM 4(ELBOW)需要从西往北旋转需要从西往北旋转9。17.9ORIENTATION TRAININGEASTUP.10ORIENTATION TRAININGFLANGE ORIENTATION 法兰的方向法兰的方向.11ORIENTATION TRAININGFLANGE ORIENTATION 法兰的方向法兰的方向45 22.522.545.12ORIENTATION TRAININGLEVEL GAUGE USAGEOne of the main reason of the orientation mistakes is wrong level gauge usage.方位错误的其中一个主要原因就是错误使用水平尺。方位错误的其中一个主要原因就是错误使用水平尺。UPNORTHSOUTH44DOWN44 up from NorthTo determine angles which positioned from axial to up,level gauge shall be used like above.要确定坐标轴向上旋转的角度，水平尺使用方法如上图所示。要确定坐标轴向上旋转的角度，水平尺使用方法如上图所示。.13ORIENTATION TRAININGLEVEL GAUGE USAGEUPNORTH44DOWNSOUTHTo determine angles which positioned from axial to down,level gauge shall be used like above.要确定坐标轴向下旋转的角度，水平尺使用方法如上图所示。要确定坐标轴向下旋转的角度，水平尺使用方法如上图所示。44 down from North.14ORIENTATION TRAININGLEVEL GAUGE USAGE水平尺的使用方法水平尺的使用方法47.15ORIENTATION TRAININGLEVEL GAUGE USAGE水平尺的使用方法水平尺的使用方法43.16ORIENTATION TRAININGTRIANGLE CALCULATIONs三角函数的计算三角函数的计算.17ORIENTATION TRAININGELBOW RADIUS CALCULATIONs弯头的半径计算弯头的半径计算 90 DEG LR ELBOW RADIUS CALCULATION:90LR弯头的半径计算：弯头的半径计算：DIAMETERX38.1(Example for 10”=10 X 38.1=381)45 DEG LR ELBOW RADIUS CALCULATION:45LR弯头的半径计算：弯头的半径计算：DIAMETER X16(Example for 10”=10X16=160)NOTE:For diameters bigger than 20”,radius shall be calculated=DIAMETERX15.7 90 DEG SR ELBOW RADIUS CALCULATION:90SR弯头的半径计算：弯头的半径计算：DIAMETERX25.4 (Example for 10”=10X25.4=254)LONG RADIUS(LR)SHORT RADIUS(SR)ELBOWELBOW.18ORIENTATION TRAININGRADIUS CALCULATION FOR OTHER THAN 90 DEGREE ELBOW非非90弯头的半径计算弯头的半径计算30/2=15.TAN15 X 381(90 ELBOW RADIUS)=102MM102 MMEXAMPLE FOR 10”30 ELBOW RADIUS CALCULATION例：例：10”30 ELBOW 弯头半径的计算方法.19ORIENTATION TRAININGINTERNAL-EXTERNAL RADIUS CALCULATION FOR ELBOWs弯头内弯头内-外半径的计算外半径的计算Example for 10”90 Elbow,60 Marking137+381+381+137=1036mm1036X3.14=3253mm=External arc length 3253/360=9.03mm=mm equal for 1 Elbow will be mark 60=9.03X60=542mm(381+381)-(137+137)=488mm488X3.14=1532mm=Internal arc length1532/360=4.25mm=mm equal for 1 Elbow will be mark 60 =4.25X60=255mm.20ORIENTATION TRAININGSOCKET WELD GAP承插焊间隙承插焊间隙在焊接前留有约1.5mm 的间隙.21ORIENTATION TRAININGSOCKET WELD GAPMINIMUM 1.5MM.