Pipeline cleaning
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What steps are generally required for the original piping systems to meet the standards for normal operation? For example, in which types of piping (**units**) are acid washing and alkali washing used?
Pipe pickling is generally carried out before alkali cleaning; it is intended to remove impurities and rust from within the pipes, while alkali cleaning is used to eliminate grease from the pipes. Acid washing and degreasing are generally required only for oxygen pipelines. There are quite a number of pipes that require pickling. First and foremost, this applies to newly installed pipes – those in which rust or other debris could affect product quality, cause catalyst poisoning, or involve equipment that is highly precise, such as turbines and instruments. To ensure safe operation and to enable prompt commissioning of such systems, pickling is generally carried out. . Also, in daily use, the pipes can become blocked, affecting system pressure, and there is dirt that needs to be cleaned. . Put simply, oil lines, gas lines, and steam pipes generally require acid washing and passivation treatment.
What are the components of ordinary acid cleaning solutions and alkali cleaning solutions?
Professional cleaning companies have their own formulas; for example, alkali solutions use diluted caustic soda or weak alkalis such as sodium carbonate and sodium phosphate. Citric acid is commonly used for pickling. But it depends on the specific material of the pipeline; otherwise, it may cause corrosion of the pipeline
There are guidelines for the construction and acceptance of metal pipe projects; you should take a look!