Processus de travail du jet de cavitation EMT

The Cavitation Jet EMT Pigging Pig operates at a speed of 0.4–1.2 m/s, with a pressure difference ranging from 0.6–1.2 MPa. As it moves through the pipeline, it simultaneously transports liquid while discharging 25–40% of the conveyed fluid. The cleaning efficiency of the system largely depends on several factors, including water consumption, deposit hardness, pressure difference, pipeline slope, and the distance to the discharge outlet.

The cleaning process begins when the cavitation pig is inserted into the pipeline and gradually propelled forward by water pressure and flow. As it advances, the pig’s blades begin to vibrate intensely, generating high-frequency oscillations and at the same time inducing a rapidly rotating water flow around it. Consequently, this movement creates a continuous low-pressure zone, where water remains in a vaporized state. Within this zone, countless microscopic vapor bubbles quickly form and are subsequently compressed by high-pressure water, causing them to collapse violently. As a result, this implosion generates an immense force of 800–1000 MPa, which effectively dislodges and breaks down dirt and deposits. Ultimately, this ensures thorough cleaning of the ash-discharge pipeline.

Nettoyage mécanique (raclage) vs nettoyage par cavitation

Nettoyage mécanique : Comprend l’utilisation de jauges d’inspection des pipelines (racleurs) pour gratter physiquement les dépôts. Bien qu’efficace pour certains types d’accumulation, il peut avoir du mal à faire face à des blocages complexes et nécessite un entretien fréquent.
Nettoyage par cavitation : Utilise des bulles de cavitation à haute énergie pour déloger les contaminants, atteignant des zones que les méthodes mécaniques peuvent manquer. Il offre un processus de nettoyage plus approfondi et uniforme.

Avantages des porcs racleurs