Patent ID: 6318564
Filing Date: 2001-11-20
Classification: B01D

Abstract:
A pipe line strainer comprising:an elongate strainer body having an inner body wall surface and defining a cylindrical flow passageway, and further defining a strainer inlet in communication with said cylindrical flow passageway, said inlet being about two inches in diameter smaller than said cylindrical flow passageway, and a strainer outlet perpendicular to said cylindrical flow passageway, said strainer outlet being spaced from said strainer inlet along said cylindrical flow passageway in a direction for fluid flow generally from said strainer inlet toward said strainer outlet, said cylindrical flow passageway extending generally between said strainer inlet and said strainer outlet, anda strainer basket disposed within said cylindrical flow passageway between said strainer inlet and said strainer outlet, said strainer basket comprising a strainer basket wall defining a plurality of through apertures of predetermined cross dimension for flow of fluid from said strainer inlet toward said strainer outlet, said strainer basket wall dividing said cylindrical flow passageway into a first region of flow upstream of said strainer basket wall and a second region of flow downstream of said strainer basket wall,said second region of flow having a transitional region of flow coincident to said perpendicular outlet and bounded between opposed surfaces of said strainer basket and said inner body wall, said transitional region of flow having a flow cross-sectional area equal to or smaller than the cross-sectional area of said strainer inlet and equal to or smaller than the cross-sectional area of said strainer outlet, andsaid transitional region of flow having at least one of: an unequal distribution of flow velocity or an unequal distribution of total volumetric flow across incremental cross-sections of said transitional region of flow and having a change in incremental flow cross sectional area in said direction for fluid flow, said change in flow cross-sectional area increasing in a direction of increasing flow velocity or increasing in a direction of increasing total volumetric flow in said transitional region of flow.