ICIboilerhydrostaticteststandards.docVIP

ICI项目锅炉水压试验规程： ICI item boiler hydrostatic test standards 1 锅炉水压试验前，一般可进行一次0.2～0.3MPa的风压试验。 before boiler hydrostatic test， general can proceed once 0.2～0.3Mpa air pressure test. 2 锅炉水压试验时的环境温度应在5℃以上，。锅炉应充满水，待排足空气后，方应关闭放空阀。 when boiler hydrostatic testing the environment should exceed 5℃. Boiler should be full of water，after discharge enough air，should close discharge air valve. （3）水压试验时锅炉上应安装不少于两块经过校验合格、精度不低于1.5级的压力表，试验压力以主汽包或过热器出口联箱处的压力表读数为准。 When hydrostatic testing boiler should install not less than two pieces through check qualified、precision not less than 1.5 grade pressure meter，test press for standard of main drum or superheater outlet bind box area pressure meter indication. （4）水压试验压力升降速度一般不应大于0.3MPa/min；当达到试验压力的10%左右 0.72MPa 时，应作初步检查；如未发现泄漏，可升至工作压力 5.853MPa 检查有无漏水和异常现象；保持10分钟，期间压降不应超过0.05MPa。然后，继续升至试验压力，检查有无漏水和异常现象，保持5min，期间压降不应超过0.05MPa。 hydrostatic test pressure raise drop speed general not more than 0.3MPa/min；when arrive test pressure about 10% 0.72MPa ，should do initial check；if not find leak，can raise work pressure 5.853MPa check whether has leak and unusual phenomenon；keep 10 minute，In period pressure drop should not exceed than 0.05Mpa. then continue raise to test pressure，check whether has leak and unusual phenomenon，keep 5min，in period pressure drop should not exceed 0.05Mpa. （5）当水压试验不合格时，应返修。返修后应重做水压试验。 When hydrostatic test not qualified, should repair. After repair should do hydrostatic test again. （6）水压试验合格后，应及时将锅炉内的水全部放尽，降压速度一般不应大于0.3MPa/min。当降至工作压力时应进行全面检查，保持5分钟；检查有无破裂、变形及漏水等现象。如有破裂、变形及漏水等现象应进行修理。修补完成后应重新进行水压，直至水压合格为止。当立式过热器内的水不能放尽时，在冰冻时期应采取防冻措施。 After hydrostatic test qualified，should timely make water release all in boiler，drop pressure speed general should not more than 0.3MPa/min. when drop to work pressure should do whole check，keep 5 minute；check whether has fracture、transformation and leak. if has fracture、transformation and leak should repair. After repair should do hydrostatic again，until hydrostatic qualified. When th