换热器制造工艺指导流程

换热器制造工艺指导流程

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welding pieces, and welding.

接管支座与壳体组装Nozzle supports and shell assembling 1.按先前标出的0°、90°、180°、270°方位点,延长在壳体上。Base on the previously marked 0 °, 90 °, 180 °, 270 compass points°, extending to the hcase.

2.画出接管、支座，预开孔，安装位置，即坐标点。Draw the nozzle, supports, pre-openings, the installation location, that is, the coordinates of points

3.检验合格后，开孔，然后打上坡口，角度为外坡口30°After Inspection, opening, then grooving,the angle of the outer groove is30 °

4.组对接管与壳体，组装前，接管必须将补强圈带上固定好，一起装配。Connect nozzle to shell, before assembling,the nozzle must fix the reinforcement ring,along with the equipment.

5.接管与壳体组对间隙为2~3mm，且间隙均匀。The gap of the nozzle and shell is 2 ~ 3mm, and the gap is uniform

6.焊接完毕后，内接管须清根封底，焊缝打磨与母材齐，并倒2×45°圆角。After welding, to nozzle requires to clear the root of the back cover, weld and polise to ensure the base metal level, and the fillet is 2 × 45 °.

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d.卸下管箱，对接管法兰清根封底，划出隔板安装线，再按封头实样放

样切割，装配隔板和焊接，装配要求：每层隔板端口尺寸必须与固定端管

板（）槽一致吻合。(d) Remove the tube box, clear the root of the nozzle of the flange, draw the bulkhead

install line, and then cutting base on the real shape of the head, assembling the bulkhead and welding, assembly

requirements:each partition port size must be consistent with the fixed end of the tube plate () notch.

e.做好热处理前支撑，防止热处理使隔板变形。

Do good support before heat treatment to prevent heat treatment so that bulkhead deformation

f.热处理完毕冷却后，再加工密封面，保证法兰密封面与隔板端平面一

致。After the heat treatment and cooling, reprocessing the sealing surface to ensure the flange sealing surface

and the baffle-side plane consistent.

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