Operation of the external heat exchanger inspection
A, heat exchanger base and bearing inspection. The basis of the heat exchangeris generally added by the saddle bearing concrete foundation formed, there are a fewof the heat exchanger are the basis of bearings and steel. On the concrete foundationshould first be visually inspected for cracks, spalling. The site of the suspectedsample can be checked. The heat exchanger shell and the gap between the saddle,should be carefully examined to confirm whether they occurred due to presence ofwater vapor corrosion. The saddle is usually welded with the heat exchanger shell. In this case, you should check the saddle between the anchor bolt hole and foundationbolts if there is room for expansion and contraction, and make sure not to tighten the bolt, one end of the saddle can move freely. Application Level check the concrete foundation subsidence, and visual inspection of the piping is related to the occurrence of distortion. If necessary, can be combined with vertical and horizontalhanging instrument measured way to verify the level of degree.
B, heat exchanger piping inspection. Running in the heat exchanger can beconnected to its external takeover checked for leaks. Operation were found to havesevere leakage nozzle, the suspension should be open connecting flange, replace the gasket, check the flange seals have groove-like damage.
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Keywords: reactor, heat exchanger, pressure vessel
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