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Pump installation precautions for cold box of large air separation unit

Pump installation precautions for cold box of large air separation unit
Feb 15, 2022
Author: DEAR AST

Check the level of the liner seat, level it and then tighten the foot nut and fill the base with cement slurry. After cement leveling, check whether the bolt holes are loose, tighten them after checking for suitability, and then check the level.

Coupling: The axis line of the pump and the axis line of the motor must coincide. This can be adjusted with thin shims. Measure the clearance of the two couplings, the difference between the maximum and minimum clearance on the plane of one week<0.3mm, the difference between the two ends of the centre line up and down or left and right<0.1mm. the final installation of the pump must also meet the manufacturer's installation requirements of large air separation unit.

The installation of protection brackets etc. needs to be carried out strictly as required.

The weakest point of the instrumentation pipe is the weld between the instrumentation pipe joint and the instrumentation pipe, the instrumentation pipe is used to import long distance instrumentation pipe, about 1000m/bundle, do not increase the number of socket welds in the cold box, the weld is installed outside the cold box as far as possible.

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