换热器制造工艺指导流程

换热器制造工艺指导流程 浮头式换热器制造工艺作业指导书 Floating head heat exchanger manufacturing operating instructions

编制/日期： 校对/日期： 审核/日期： - 2 - 筒节

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1.材料确认：在材料管理员的指导下，对材料的标记确认。 Confirm material: under

the guidance of materials administrator ,recognized the mark of the material。

2.根据工艺排版图将板料平铺于切割架上，号料划出切割线、刨边线、检查线。 According to process diagram ,layouting the material board on the shelves, cutting and draw the

cutting line, plane edge, checking line.

3.坡口加工（见坡口工艺卡），完成后对坡口进行超声检测。Groove processing (see

groove process card), Ultrasonic testing

after the completion of the groove。

4.卷板：将坡口加工完好的板料置于卷板机上、下辊轮间，板料周长方向与辊轮垂直，纵向与辊轮平行。Coil: place the groove processing intact sheet on the rolling

machine, between the upper and lower roller, the sheet perimeter direction is vertical to the roller, and the

longitudinal is parallel to the rooler.

5.纵缝组对：将纵缝口两端对齐，控制错边量，错边不大于1/4δ且不大于2mm，并点上引弧板。 Combine the longitudinal seam: Align both ends of the longitudinal seam,

control the amount of the Staggered side,the staggered side is not greater than 1/4δ and not greater than 2mm,

and point the arc plate. 浮头式换热器制造工艺作业指导书 Floating head heat exchanger manufacturing operating instructions

编制/日期： 校对/日期： 审核/日期： - 3 - 6.纵缝焊接，见焊接工艺卡。 Longitudinal seam welding, see the welding process card。

7.校园：不园度控制在0.5%DN,且不大于5mm,DN≥1200,不大于7mm；棱角度，控制在δS/10+2，且不大于5mm。Regulate to make sure it circle: Park, control the

degree of of-roundness at 0.5% the DN, and not more than 5mm, the DN ≥ 1200,not more than 7mm; the

angularity, should be controlled at δS/10 +2, and not more than 5mm。

筒体

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1.将各筒节按排版图要求组对，各缝分布于0~180°，互错180°，环缝组对间隙0~2mm。 According to the requirements of each tube section layout diagram,combine them,

each seam is distributed in the 0 to 180 ° , Stagger 180 ° ,the circumferential seam combination gap is 0 ~ 2mm.

2.组对完毕后，从0°、90°、180°、270°四个方位检测，直线度10%，且不大于4.5mm。.Detect after the combination of the 0 °, 90 °, 180 °, 270 ° four orientation,10%

straightness, and no larger than 4.5mm.

3.环缝棱角度控制在δS/10+2，且不大于5mm错边量。 Control the ring slit angular

degree at δS/10+2, no larger than 5mm Staggerion of the volume. 浮头式换热器制造工艺作业指导书 Floating head heat exchanger manufacturing operating instructions

编制/日期： 校对/日期： 审核/日期： - 4 - 4.环缝组对时不可强行组装，可用加减丝扣调节间隙，间隙在0~1.5mm最佳。 When combine the Circumferential seam ,we must not assemble forcibly,use the available

subtraction threaded to adjust the gap, the gap is at best in the 0 ~ 1.5mm.

5.确定错边值后，依次从最佳点入手，顺势而成，环缝错边量不得大于1/4δ板厚且不大于2mm。 Determining the value of the Stagger， start from the best point by turn,

homeopathy to be it, the circumferential seam should not be than 1/4δ plate thickness and not more than 2mm.

6.对组装后的筒体进行直线度检测，四点方位，其最大差值不得大于4.5mm。Test the straightness after assembling the cylinder, four piont position, the maximum difference is not

greater than 4.5mm。

筒体

与

法兰

组对

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Body 1.法兰必须是经过检验，贴有合格标签的，对应的流水号和产品编号的。 The

flange must be tested, labelled with a qualified label, the corresponding serial number and product number.

2.用直尺划出法兰螺栓孔跨中线,与筒体纵缝线平行组装。 Draw the flange bolt

holes across the center line with a ruler, assemble and make sure it parallel to the cylinder longitudinal suture.

3.将装一端法兰的筒体,纵缝方向转至90°和270°方位(即水平方向左、右两侧),均分法兰孔,四等分。 Turn the one end installed flange of the cylinder, longitudinal seam 浮头式换热器制造工艺作业指导书 Floating head heat exchanger manufacturing operating instructions

编制/日期： 校对/日期： 审核/日期： - 5 - And

Law

Orchid

Group

To

direction to the 90 ° and 270 ° azimuth (horizontal left and right sides direction), divided equally flange holes,

quartered。

4.用铅垂线或水平尺将有一端法兰的筒体调节好，要求0°~180°跨中线与铅垂线重合。Adjust the one end flange of the cylinder by the plumb line or level ruler, require the 0 ° to

180 ° crossing center line and plumb line to coincide with each other.

5.组对另一端法兰，即管箱法兰铅垂线与跨中等分线要求与上法兰相同条件（即螺栓孔跨中）。Assemble the other end of the flange, thus the tube box flange plumb line shares

the same condition with the middle-point line (thus the bolt hole is at the middle).

6.装配间隙0~1.5mm，错边量0~2mm。The assembly gap is 0~ 1.5mm, the staggr mount is 0 ~

2mm.

7.检测两端法兰面水平度，用卷尺在0°、90°、180°、270°四个方位，测得壳体长，长度偏差2mm。筒体总长控制在（ ）±3mm。 Detecte the level degrees

of both ends of the flange, use the tape measure at 0 °, 90 °, 180 °, 270 °four cardinal position, measure the shell

length, the deviation is 2mm. The barrel length is contled at () ± 3mm。

8.检测、焊接完毕后，对筒体环缝内打磨平，送探伤检测，要求RT≥（ ）%，Ⅲ级合格。 After detection and welding, polished flat within the seam of the cylinder ring, sending the flaw