What preparations should be made before using a column-type cooler?
Release Time:
2025-08-31
Under normal circumstances, the pressure difference between the inlet and outlet of the shell-and-tube cooler should be measured and inspected to determine whether the shell is usable. When tube leaks occur, it is necessary to promptly check whether the tubes are damaged, and if found, repairs must be carried out immediately.
Because severe vibration of the heat exchange tubes during operation can cause tube leaks, the equipment must be shut down for inspection and timely repair. During regular use, it is advisable to periodically remove the end caps and tube sheets of the cooler to clean any foreign objects inside the tubes and dirt on the tube surfaces. Regularly inspect the end covers and tube boxes of the shell-and-tube cooler for corrosion, rust, cracks, and sand holes, and repair them promptly if found. Periodically perform pressure and leak tests on the tube sheets and shell, check the tightness of bolts, and implement insulation and anti-corrosion measures (partial inspections may be necessary). The tube sheets should also be regularly maintained to check for deformation or bending of the heat exchange tubes. Inspect the corrosion status of baffles, deflectors, and tie rod bolts. Check the sealing surfaces of the cooler to ensure they are free of scratches and dents. During normal operation of the shell-and-tube cooler, the tube sheets and tube welds should also be color-inspected.
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