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US 4,902,418 AGranted
Element having a porous wall
AssigneeSulzer Brothers Limited
InventorHeinrich Ziegler
Life of this patent
Estimating the term…
Abstract
The element is disposed in a vessel receiving a fluid flow. The vessel wall is porous at least for a proportion of the fluid and bounds an inner chamber communicating through the vessel wall with a chamber outside the vessel. The element is in the shape of a plate or tube and is so devised that the porous wall either on its own or in combination with other similarly shaped elements to form a module, forms a turbulence generator particularly in the form of a static mixer for the fluid flow. The resulting turbulence on the wall of the elements ensures that the wall remains porous.
Claims20
In combination,
- a vessel defining a flow path for conducting a fluid flow therethrough, said vessel having a wall for separating the fluid flow from the exterior of said vessel;
- and
- at least one element of plate-like cross-section disposed in and longitudinally of said vessel and shaped to define a corrugated shape across said flow path for generating turbulence in the fluid flow within said vessel, said element having an inner chamber of constant width communicating with said exterior of said vessel through said vessel wall, a semi-permeable wall bounding said inner chamber at least in part and being permeable for a proportion of the fluid flow in said vessel for use in a micron, submicron or molecular range and a support mesh supporting said semi-permeable wall thereon.
A filter element comprising
- a pair of walls bounding a closed chamber of constant width therebetween, at least one of said walls being of a porosity to permit passage of a filtrate from a fluid flow over said at least one wall into said chamber, said walls being disposed in parallel relation and in being of undulating shape longitudinally thereof to define a turbulence generator for the fluid flow passing over said walls to generate turbulence within the fluid flow;
- at least one support mesh supporting each said wall thereon;
- and
- means in communication with said chamber to conduct the filtrate from the fluid flow out of said chamber.
1 more element
An element comprising
- a pair of walls bounding a closed chamber of constant width therebetween, at least one of said walls being of a porosity relative to a fluid flow passing over said walls to pass a second fluid from said chamber into the fluid flow for mixing therewith, said walls being disposed in parallel relation and in being of undulating shape longitudinally thereof to define a turbulence generator for the fluid flow passing over said walls to generate turbulence within the fluid flow;
- at least one support mesh supporting each said wall thereon;
- and
- means in communication with said chamber to deliver the second fluid to said chamber.
1 more element
In combination,
- a vessel defining a flow path for conducting a fluid flow therethrough, said vessel having a wall for separating the fluid flow from the exterior of said vessel;
- and
- a plurality of helical elements disposed in said vessel in coaxial manner to define a turbulence generator for generating turbulence in the fluid flow, each said element having an inner chamber communicating with said exterior of said vessel through said vessel wall, a semi-permeable wall bounding said inner chamber at least in part and being permeable for a proportion of the fluid flow in said vessel for use in a micron, submicron or molecular range and a support mesh supporting said semi permeable wall thereon.
In combination,
- a vessel defining a flow path for conducting a fluid flow therethrough, said vessel having a wall for separating the fluid flow from the exterior of said vessel;
- and
- at least one element disposed in said vessel to define a turbulence generator for generating turbulence in the fluid flow, each element including a plurality of layers of contiguous tubes with each said tube having an inner chamber communicating with said exterior of said vessel through said vessel wall, a semi-permeable wall bounding said inner chamber at least in part and being permeable for a proportion of the fluid flow in said vessel for use in a micron, submicron or molecular range and a support mesh supporting said semi permeable wall thereon, said tubes in adjacent layers being disposed to cross one another with individual tubes having openings passing therethrough in sealed relation to said inner chamber thereof to pass the fluid flow.
In combination,
- a vessel defining a flow path for conducting a fluid flow therethrough, said vessel having a wall for separating the fluid flow from the exterior of said vessel;
- and
- a plurality of spaced parallel elements disposed in said vessel and having vanes extending therebetween in crossing relation to define a turbulence generator for generating turbulence in the fluid flow, each said element having an inner chamber communicating with said exterior of said vessel through said vessel wall, a semi permeable wall bounding said inner chamber at least in part and being permeable for a proportion of the fluid flow in said vessel for use in a micron, submicron or molecular range and a support mesh supporting said semi permeable wall thereon.
In combination,
- a vessel defining a flow path for conducting a fluid flow therethrough, said vessel having a wall for separating the fluid flow from the exterior of said vessel;
- and
- a plurality of parallel corrugated elements disposed in said vessel with corrugations thereof in crossing relation to each other to define a turbulence generator for generating turbulence in the fluid flow, each said corrugated element having an inner chamber of constant width communicating with said exterior of said vessel through said vessel wall, a semi-permeable wall bounding said inner chamber at least in part and being permeable for a proportion of the fluid flow in said vessel for use in a micron, submicron or molecular range and a support mesh supporting said semi permeable wall thereon.
Dependencies are inferred from the claim text.