PIPING CONSRUCTION PRACTICE STANDARD OF PIPING PRACTICE HULL Semi-submersible PART HULL PART HLV YCRO408-401-002 PIPE FABRACATION WORKMANSHIP SHEET 5 OF 22 与管子连接的法兰、螺纹接头、套管、定型弯头、异径接头、分支管、焊接座、复板等都要满足 管子零件图上的规定的规格、数量等详细要求。应按照图纸提供的规格和数量提前加工或购买。
50000DWT
CONTENT 目录
1 2 3 4 5 6 7 8 9 The flow chart of pipe process – 管路施工流程图 ......................................................... 3 General Requirements - 通则 ............................................................................................. 4 Piping Material - 管子材料 ................................................................................................... 4 Material Preparation - 材料的准备 ..................................................................................... 4 Bending of pipe - 弯管 ......................................................................................................... 5 Lineation & cutting - 划线下料 ......................................................................................... 12 Prefabricating piping - 校管.............................................................................................. 13 Hydraulic test - 水压试验 ................................................................................................... 17 The pipes treating and store - 管子的处理与存放 ........................................................ 22
50000DWT
1 THE FLOW CHART OF PIPE PROCESS – 管路施工流程图
Task-下达任务
Check drawings and classing-读图
Prepare material and fitting-准备材料及附件
Bending-弯管
line and cut-划线切割
2 1
DRAWN
24
计
档 案 号
CHECKED MANAGER APPROVED
入 库 日 期
YCRO408-401-002
ISSUED FOR CONSTURUCTION DESCRIPTION 2013.1.3 DATE QGX BY
管路制作工艺
版权：本图纸的版权为烟台中集来福士所有，未经事先书面许可，不得以任何形式复制、修改、转载或用于其他目的
3 PIPING MATERIAL - 管子材料
All pipe and associated pipe system requirements (i.e. material grade, size, dimensions, etc.) shall be conformed to the applicable Engineering Drawings and/or Piping Specification, rules and codes. Substitute / equivalent materials may be utilized only with the written approval of the engineer and QC department. 所有管子及其联结件应遵照工程图纸/管系规格书、规则、规范的要求。只有得到技术人员或船 检部门书面同意，才能选用代用材料或其他同等材料。 All the pipe shall be thoroughly examined for evidence of damage to pipe wall or end bevel. Damaged portions of pipe shall be removed and damaged or improper bevels shall be re-ground to applicable specifications. 所有的管子都要彻底检查管壁和管端坡口。要除掉损伤部分，损伤坡口按规则重新打坡口。 Each imperfection or damage that impairs the serviceability of the piping or pipe fittings must be repaired or removed. 每个由于损伤或不完整而引起强度减弱的管子或管子附件一定要修补或拆除。
straight piping-直管
Slope machining-削斜
Inspected on plate-平Байду номын сангаас检验 Welding-焊接
Grinding-打磨 Hydraulic test-压力试验 leakage-泄漏
Acid & oil washing-酸洗串油
galvanizing-镀锌
Assemble center-装配中心
4 MATERIAL PREPARATION - 材料的准备
All the pipe system in the ship should draw the material strictly as the standard number, material trademark, specification sign on the general pipe accessory lofting drawings. The pipe must be cut as the total length on the pipe accessory drawings with pipe cutter or saw bed.The sundries as crumb, burr should be taken off from the pipe end after cutting. The end surface of the pipes should keep as clean as a whistle. 全船各个系统的管系，应严格按照综合放样管子零件图上规定的标准号、材料牌号、规格等领料。 管子按管子零件图上的总长度下料，必须用管子切割机或锯床切割。管子切割后必须清除其端部 的锯屑、毛刺等杂物，保证表面光滑。 The flange, screw thread tie-in, bushing, style elbow, different diameters tie-in, branch pipe, welding fundation, double plates ect. connectted to the pipes should fulfil the specification on the pipe accessory drawings, and should be machined beforehead or buyed beforehead according to number list in the drawings.
PIPING CONSRUCTION PRACTICE STANDARD OF PIPING PRACTICE HULL Semi-submersible PART HULL PART HLV YCRO408-401-002 PIPE FABRACATION WORKMANSHIP SHEET 4 OF 22
。
2013-1-3 2013-1-3 2013-1-3 2013-1-3
SCALE NONE
DRAWING NO. YCRO408-401-002 SHEET 1 OF 22
REV 0 A4
PIPING CONSRUCTION PRACTICE STANDARD OF PIPING PRACTICE HULL Semi-submersible PART HULL PART HLV YCRO408-401-002 PIPE FABRACATION WORKMANSHIP SHEET 2 OF 22
PIPING CONSRUCTION PRACTICE STANDARD OF PIPING PRACTICE HULL Semi-submersible PART HULL PART HLV YCRO408-401-002 PIPE FABRACATION WORKMANSHIP SHEET 3 OF 22
50000DWT
2 GENERAL REQUIREMENTS - 通则
Fabrication under this Specification shall include all components of the piping system, or part thereof connecting fabricated assemblies including testing and fit-up of complete fabricated assemblies to ensure correct fit and alignment, including all in-line valves, gaskets, bolts and flanges or welded fittings to ensure the integrity and proper functioning of all components. But don't exclude the other feasible scheme. 管系的加工包括管系的各个部分，或相连接部分结构的装配，包括实验、为保证正确安装及对齐 而临时完成简易结构，以及所有的阀门，垫片，螺栓，法兰或焊接件来保证所有部分有完全正确 的功能，但不排除采用其它可行的方案。