(Pipe Line) Cleaning


Industrial pipelines have dirty surfaces due to various accumulations, leading to obstruction of fluid flow and localized corrosion attack on the metal. Scale layers increase pressure drop and cause complete or partial blockage.

Online cleaning systems can be easily installed during the construction and installation stages of the plant and, if not installed, require temporary piping, isolation valves, and hose connections for cleaning. Pigging and brushing methods, which are equipment cleaning methods, are considered for online pipe cleaning, but these methods are usually not applicable if hard scale is formed, the pipe diameter is not constant, or branch lines are present. Therefore, it is necessary to understand the composition and characteristics of the additives and select the appropriate cleaning agent. Common inorganic scale-forming compounds include minerals such as various iron oxides (corrosion products), aqueous sediments, hardened sediments (carbonates and silicates of calcium and magnesium), and certain other scale may be present. Inorganic acids used in chemical cleaning include hydrochloric acid, hydrofluoric acid, sulfuric acid, phosphoric acid, and nitric acid, but most of these acids react with metals and cause damage to pipelines, making it dangerous to use them carelessly. Therefore, when choosing a cleaning chemical, it should be applied after verifying whether the cleaner to be used reacts with the metal material of the pipeline. Cham Clean cleaners are vegetable additive-based cleaners that contain powerful metal corrosion inhibitors and are developed, manufactured and supplied as precision chemicals that essentially block damage to various metals.

Formation of various internal pipe scale

 

OWS pipe cleaning in oil refineries

 

     

Panoramic view of the cleaning work site

Circulation cleaning pump and hose connection

 

Removal of dissolved scale

 

 

     

Temporary circulation pipe connection

Temporary circulation pipe connection

 

Scale formation status before cleaning

 

 

       

Pipe clogged with scale

State of scale dissolution with detergent

 

Inside view of pipe with scale removed

 

 

 

Crude oil mining pipe cleaning (Indonesia)

 

     

Pipeline transporting mined crude oil

Temporary piping installation work for circulation cleaning

 

 

     

Circular cleaning operation

 

Tanks and devices for cyclic cleaning

 

Soluble scale

 

   

Inside the pipe is blocked by scale

 

After the scale is removed

 

Incinerator leachate and urea pipe cleaning

 

     

Temporary line installation

leachate pipe circulation cleaning

 

Temporary piping installation of urea water injection line

 

Cleaning operation with a cleaning device

 

 

Before and after scale removal in leachate pipes

 

Before and after scale removal on urea water pipes

 

 

Scale removal from incinerator water pipes

Temporary pipe installation of circulation cleaner to remove scale on water pipes

Installation of circulation cleaning equipment and implementation of circulation cleaning