For equipment such as tanks and towers, how should purging be carried out before operation?
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For equipment such as tanks and towers, how should purging be carried out before operation, and what are the purging plans and principles? This post was last edited by yfq4308 on 2009-3-8 10:44.]
The common methods for cleaning equipment such as tanks and towers before starting up are as follows: 1. Manually remove large debris from inside the tanks and the bottom of the towers, including waste steel plates, welding rods, and even anti-corrosion and insulation materials. 2. Rinse with clean water to wash away the impurities adhering to the surfaces. It is required to release pressure by opening the upper manhole or handhole (breather valve) to prevent the tank or tower from being collapsed! 3. Compressed air can also be used for purging! 4. It is required that cleanup work be documented for easy tracking!
Cylindrical towers are generally cleaned manually; only those that are too small for people to enter are purged
For equipment such as tanks and towers, the following cleaning tasks need to be carried out before operation begins: 1. For tanks and vessels that do not have any internal fittings, open the bottom manhole cover and manually remove debris from inside the tank or vessel, including construction waste, welding rods, rust, and residues from sandblasting, among others； 2. For tower equipment equipped with internal accessories, in addition to opening the bottom manhole cover to manually remove debris from the bottom of the tower, it is also necessary to open the manhole covers on each level in order to thoroughly inspect the tray sections and remove any debris there ； 3. It can then be rinsed with clean water to remove any residues remaining on the surface, or it can be blown clean using compressed air. As stated on the 2nd floor: It is necessary to release water by opening the upper manhole or handhole (breather valve) to prevent the tank or tower from being sucked flat! No matter which cleaning method is used, it’s necessary to thoroughly clean the bottom once more at the end! 4. Of course, there is one final key step: inerting by replacing the air with nitrogen or steam to make the final preparations before starting up operations.