Construction of the wedge filtration media laminated by wedge filter plate

• US 8,083,941 B2
• Filed: 08/08/2008
• Issued: 12/27/2011
• Est. Priority Date: 08/17/2007
• Status: Active Grant

• Current Assignee: Bueno Technology Co., Ltd.
• Original Assignee: Huan-Jun Chien
• Inventors: Chien, Huan-Jun
• Primary Examiner(s): KURTZ, BENJAMIN M
• Application Number:
  US12/188,406
• Publication Number:
  US 20090045130A1
• Time in Patent Office: 1,236 Days
• Field of Search: 210/314, 210/315, 210/342, 210/337, 210/338, 210/350, 210/488, 210/489
• US Class Current: 210/314
• CPC Class Codes: B01D 29/111 Making filtering elements
• CPC Class Codes: B01D 29/33 arranged for inward flow filtration
• CPC Class Codes: B01D 29/48 of spirally or helically wound bodies
• CPC Class Codes: B01D 29/58 arranged concentrically or coaxially

Abstract

An improved construction of filtration media of a wedge filter provides a performance on both surface and inner filtration mechanisms with offering many times recycled use by washable functions. Particularly a wedge filter plate is used to construct a hollow cylindrical type media of wedge filter.

Claims

1. A wedge filtration media, comprising:

a plurality of wedge filter plates, each of said wedge filter plates comprising a hollow portion arranged at a center thereof, several wedge strings of concentrically circular arc radiating outward from said hollow portion, several radial struts, and radial sedimentation chambers, said several wedge strings of concentrically circular arc comprising several different radius wedge-shaped strings of concentrically circular arc, said radial sedimentation chambers being arranged between each adjacent different radius wedge-shaped string, said several wedge strings of concentrically circular arc and said several radial struts forming a porous web pattern of one of said wedge filter plates, each of said radial struts having a radial strut thickness, said radial strut thickness being substantially equal to a thickness of one or more of said wedge filter plates, each of said several wedge strings comprising a wedge string cross section, said wedge string cross section being in a shape of a wedge or a triangle, said wedge string cross section comprising a long-axis and a short-axis, said long-axis being perpendicular to said short-axis, said long-axis being perpendicular to a central line of said hollow portion, said long-axis defining a length of said wedge string cross section, said short-axis being parallel to the central line of the hollow section, said short-axis defining a thickness of said wedge string cross section, each of said different radius wedge-shaped string having a radius wedge-shaped string cross section, said radius wedge-shaped string cross section of each of said several different radius wedge-shaped strings of concentrically circular arc having a thickness that is different from a thickness of another one of said several different radius wedge-shaped strings of concentrically circular arc, said thickness of each of said several different radius wedge-shaped strings of concentrically circular arc being less than one or more of said wedge filter plates, wherein a lower side of one of said several different radius wedge-shaped strings of concentrically circular arc and an adjacent one of said several different radius wedge-shaped strings of concentrically circular arc define a plurality of different radius filtering apertures of circular arc, wherein each of said filtering apertures has a dimension equal to a difference between said thickness of one of said several different radius wedge-shaped strings and one of said wedge filter plates, each of said filtering apertures having a throat for entrance and an exit opening for exit, said throat having a dimension that is less than a dimension of said exit opening, said different radius filtering apertures of circular arc defining a plurality of series concentrically cylindrical filter screens of different radius inside the wedge filtration media, said radial sedimentation chambers being established between each adjacent different radius wedge-shaped string such that the radial sedimentation chambers link said different radius filtering apertures together and in series, said different radius filtering apertures and said radial sedimentation chambers defining several series of filter systems of different mesh size from an outer portion of said one of said wedge filter plates and said adjacent wedge filter plate to an inner portion of said one of said wedge filter plates and said adjacent wedge filter plate, wherein particles having a dimension greater than one or more of said different radius filtering apertures is left in one of the radial sedimentation chambers, said hollow portion providing a passageway for a fluid flow.

2. The construction of the wedge filtration media as claimed in claim 1, wherein said exit opening faces inwardly, in a direction of said hollow portion, wherein an incoming fluid flow enters said hollow portion, said several wedge strings of concentrically circular arc comprising an outmost wedge-shaped string and an innermost wedge-shaped string, said outmost wedge-shaped string having an outmost wedge-shaped string thickness, and the innermost wedge-shaped string having an innermost wedge-shaped string thickness, said innermost wedge-shaped string thickness being greater than said outmost wedge-shaped string thickness, wherein a thickness of each of said several wedge strings increases from said outmost wedge-shaped string to said innermost wedge-shaped string, said outmost wedge-shaped string defining at least a portion of one of said filtering apertures and said innermost wedge-shaped string defining at least a portion of another one of said filtering apertures, said dimension of said one of said filtering apertures being greater than said dimension of said another one of said filtering apertures, wherein a minimum size of said filtering apertures is 0.025mm.

3. The construction of the wedge filtration media as claimed in claim 1, wherein said exit opening faces outwardly an enclosure of wedge filtration media, wherein an incoming fluid flow enters from the central said hollow portion of the wedge filtration media to the enclosure, said several wedge strings of concentrically circular arc comprising an outmost wedge-shaped string having an outmost wedge-shaped string thickness and an innermost wedge-shaped string having an innermost wedge-shaped string thickness, said outmost wedge-shaped string thickness being greater than said innermost wedge-shaped string thickness, wherein a thickness of said several wedge strings increases progressively from said innermost wedge-shaped string to said outmost wedge-shaped string, said outmost wedge-shaped string forming at least a portion of a smallest filtering aperture and said innermost wedge-shaped string forming at least a portion of a biggest filtering aperture, wherein a minimum size of said filtering apertures is 0.025mm.

4. A wedge filtration media, comprising:

a first wedge filter plate comprising a first wedge filter plate hollow portion, a plurality of first wedge-shaped strings of concentrically circular arc extending outward from said first wedge filter plate hollow portion, a plurality of first radial struts and a plurality of first sedimentation chambers, each of said first radial struts extending in a radial direction with respect to a central axis of said first hollow portion, each of said first sedimentation chambers being arranged between adjacent first wedge-shaped strings, each of said first wedge-shaped strings having a first wedge-shaped string thickness, said first wedge-shaped string thickness of each of said first wedge-shaped strings being different from said first wedge-shaped string thickness of another one of said first wedge-shaped strings;

a second wedge filter plate comprising a bottom surface, said bottom surface and each of said plurality of first wedge-shaped strings defining a plurality of filter apertures, each of said filter apertures having an entry opening and an exit opening, said entry opening being in communication with said exit opening, wherein a dimension of said entry opening of each of said filter apertures is greater than a dimension of said entry opening of a consecutive filter aperture, each of said first sedimentation chambers being in communication with one or more of said filter apertures.

5. A wedge filtration media in accordance with claim 4, wherein said second wedge filter plate comprises a second wedge filter plate hollow portion, a plurality of second wedge-shaped strings of concentrically circular arc extending outward from said second wedge filter plate hollow portion, a plurality of second radial struts and a plurality of second sedimentation chambers, each of said second radial struts extending in a radial direction with respect to a central axis of said second hollow portion, each of said second sedimentation chambers being arranged between adjacent second wedge-shaped strings, each of said second wedge-shaped strings having a second wedge-shaped string thickness, said second wedge-shaped string thickness of each of said second wedge-shaped strings being different from said second wedge-shaped string thickness of another one of said second wedge-shaped strings, one or more of said second sedimentation chambers being in communication with one or more of said first sedimentation chambers and one or more of said first filter apertures.

6. A wedge filtration media in accordance with claim 5, wherein each of said first radial struts have a first radial strut thickness, said first radial strut thickness being substantially equal to a thickness of said first wedge filter plate, each of said first wedge-shaped strings comprising a first wedge string cross section, said first wedge string cross section being in a shape of a first wedge or a first triangle, said first wedge string cross section comprising a first long-axis and a first short-axis, said first long-axis being perpendicular to said first short-axis, said first long-axis being perpendicular to said central axis of said first hollow portion, said first long-axis defining a length of said first wedge string cross section, said first short-axis being parallel to the central axis of said first wedge filter plate hollow section, said first short-axis defining a thickness of said first wedge string cross section, said thickness of each of said first wedge-shaped strings being less than a thickness of said first wedge filter plate, each of said filtering apertures having a dimension equal to a difference between said thickness of one of said first wedge-shaped strings and said thickness of said first wedge filter plate, said entry opening of said filtering apertures having a dimension that is less than a dimension of said exit opening of said filtering apertures, wherein particles having a dimension greater than one or more of said filtering apertures is left in one of the first radial sedimentation chambers, said first wedge plate hollow portion defining a passageway for a fluid flow.

7. A wedge filtration media in accordance with claim 6, wherein each of said second radial struts have a second radial strut thickness, said second radial strut thickness being substantially equal to said thickness of said second wedge filter plate, each of said second wedge-shaped strings comprising a second wedge string cross section, said second wedge string cross section being in a shape of a second wedge or a second triangle, said second wedge string cross section comprising a second long-axis and a second short-axis, said second long-axis being perpendicular to said second short-axis, said second long-axis being perpendicular to said central axis of said second wedge filter plate hollow portion, said second long-axis defining a length of said second wedge string cross section, said second short-axis being parallel to the central axis of said second wedge filter plate hollow section, said second short-axis defining a thickness of said second wedge string cross section, said thickness of each of said second wedge-shaped strings being less than a thickness of said second wedge filter plate, said second wedge plate hollow portion defining a passageway for a fluid flow.

8. A wedge filtration media as claimed in claim 4, wherein said exit opening faces inwardly in a direction of said first wedge filter plate hollow portion, wherein an incoming fluid flow enters said first wedge filter plate hollow portion, said first wedge-shaped strings comprising an outmost wedge-shaped string and an innermost wedge-shaped string, said outmost wedge-shaped string having an outmost wedge-shaped string thickness, and the innermost wedge-shaped string having an innermost wedge-shaped string thickness, said innermost wedge-shaped string thickness being greater than a thickness of each of another of said first wedge-shaped strings and said outmost wedge-shaped string thickness being less than said thickness of each of another of said first wedge-shaped strings, wherein the thickness of each of said first wedge-shape strings increases from said outmost wedge-shaped string to said innermost wedge-shaped string, said outmost wedge-shaped string defining at least a portion of one of said filtering apertures and said innermost wedge-shaped string defining at least a portion of another one of said filtering apertures, wherein a dimension of said one of said filtering apertures is greater than a dimension of said another one of said filtering apertures, wherein a minimum size of said filtering apertures is 0.025mm.

9. A wedge filtration media in accordance with claim 8, wherein said second wedge-shaped strings comprise a second outmost wedge-shaped string and a second innermost wedge-shaped string, said second outmost wedge-shaped string having a second outmost wedge-shaped string thickness, and the second innermost wedge-shaped string having a second innermost wedge-shaped string thickness, wherein a thickness of each of said second wedge-shapes strings is less than said second innermost wedge-shaped string thickness and said second outmost wedge-shaped string thickness is less than said thickness of each of said second wedge-shaped strings, wherein the thickness of each of said second wedge-shaped strings increases from said second outmost wedge-shaped string to said second innermost wedge-shaped string.

10. A wedge filtration media in accordance with claim 4, wherein said first wedge-shaped strings comprise an outmost wedge-shaped string having an outmost wedge-shaped string thickness and an innermost wedge-shaped string having an innermost wedge-shaped shaped string thickness, said outmost wedge-shaped string thickness being greater than a thickness of each of another of said first wedge-shaped strings and said innermost wedge-shaped string thickness being less than said thickness of each of another of said first wedge-shaped strings, wherein a thickness of first wedge-shaped strings increases progressively from said innermost wedge-shaped string to said outmost wedge-shaped string, said outmost wedge-shaped string forming at least a portion of a smallest filtering aperture and said innermost wedge-shaped string forming at least a portion of a biggest filtering aperture, wherein a minimum size of said filtering apertures is 0.025mm.

11. A wedge filtration media in accordance with claim 10, wherein said second wedge-shaped strings comprise a second outmost wedge-shaped string having a second outmost wedge-shaped string thickness and a second innermost wedge-shaped string having a second innermost wedge-shaped string thickness, said second outmost wedge-shaped string thickness being greater than a thickness of each of another of said second wedge-shaped strings and said second innermost wedge-shaped string thickness being less than said thickness of each of another of said second wedge-shaped strings, wherein a thickness of second wedge-shaped strings increases progressively from said second innermost wedge-shaped string to said second outmost wedge-shaped string.

12. A wedge filtration media, comprising:

a first wedge filter plate comprising a first wedge filter plate hollow portion, a plurality of first wedge-shaped strings of concentrically circular arc extending outward from said first wedge filter plate hollow portion, a plurality of first radial struts and a plurality of first sedimentation chambers, each of said first radial struts extending in a radial direction with respect to a central axis of said first wedge filter plate, each of said first sedimentation chambers being arranged between adjacent first wedge-shaped strings, each of said first wedge-shaped strings having a first wedge-shaped string thickness, said first wedge-shaped string thickness of each of said first wedge-shaped strings being different from said first wedge-shaped string thickness of another one of said first wedge-shaped strings;

a second wedge filter plate comprising a second bottom surface, said second bottom surface being located at a spaced location from each of said plurality of first wedge-shaped strings to define a plurality of filter apertures, each of said filter apertures having an entry opening and an exit opening, said entry opening being in communication with said exit opening, wherein a dimension of said entry opening of filter apertures decreases based on a radial position of said first-wedge shaped strings relative to said central axis of said first wedge filter plate, wherein said dimension of said entry opening of a first one of said filter apertures is greater than said dimension of said entry opening of a second one of said filter apertures, said second one of said filter apertures being located at a first distance from said central axis of said first wedge filter plate, said first one of said filter apertures being located at a second distance from said central axis of said first wedge filter plate, said first distance being greater than said second distance, each of said first sedimentation chambers being in communication with one or more of said filter apertures.

13. A wedge filtration media in accordance with claim 12, wherein said second wedge filter plate comprises a second wedge filter plate hollow portion, a plurality of second wedge-shaped strings of concentrically circular arc extending outward from said second wedge filter plate hollow portion, a plurality of second radial struts and a plurality of second sedimentation chambers, each of said second radial struts extending in a radial direction with respect to a central axis of said second hollow portion, each of said second sedimentation chambers being arranged between adjacent second wedge-shaped strings, each of said second wedge-shaped strings having a second wedge-shaped string thickness, said second wedge-shaped string thickness of each of said second wedge-shaped strings being different from said second wedge-shaped string thickness of another one of said second wedge-shaped strings, one or more of said second sedimentation chambers being in communication with one or more of said first sedimentation chambers and one or more of said first filter apertures.

14. A wedge filtration media in accordance with claim 13, wherein each of said first radial struts have a first radial strut thickness, said first radial strut thickness being substantially equal to a thickness of said first wedge filter plate, each of said first wedge-shaped strings comprising a first wedge string cross section, said first wedge string cross section being in a shape of a first wedge or a first triangle, said first wedge string cross section comprising a first long-axis and a first short-axis, said first long-axis being perpendicular to said first short-axis, said first long-axis being perpendicular to said central axis of said first hollow portion, said first long-axis defining a length of said first wedge string cross section, said first short-axis being parallel to the central axis of said first wedge filter plate hollow section, said first short-axis defining a thickness of said first wedge string cross section, said thickness of each of said first wedge-shaped strings being less than a thickness of said first wedge filter plate, each of said filtering apertures having a dimension equal to a difference between said thickness of one of said first wedge-shaped strings and said thickness of said first wedge filter plate, said entry opening of said filtering apertures having a dimension that is less than a dimension of said exit opening of said filtering apertures, wherein particles having a dimension greater than one or more of said filtering apertures is left in one of the first radial sedimentation chambers, said first wedge plate hollow portion defining a passageway for a fluid flow.

15. A wedge filtration media in accordance with claim 14, wherein each of said second radial struts have a second radial strut thickness, said second radial strut thickness being substantially equal to said thickness of said second wedge filter plate, each of said second wedge-shaped strings comprising a second wedge string cross section, said second wedge string cross section being in a shape of a second wedge or a second triangle, said second wedge string cross section comprising a second long-axis and a second short-axis, said second long-axis being perpendicular to said second short-axis, said second long-axis being perpendicular to said central axis of said second wedge filter plate hollow portion, said second long-axis defining a length of said second wedge string cross section, said second short-axis being parallel to the central axis of said second wedge filter plate hollow section, said second short-axis defining a thickness of said second wedge string cross section, said thickness of each of said second wedge-shaped strings being less than a thickness of said second wedge filter plate, said second wedge plate hollow portion defining a passageway for a fluid flow.

16. A wedge filtration media as claimed in claim 12, wherein said exit opening faces inwardly, in a direction of said first wedge filter plate hollow portion, wherein an incoming fluid flow enters said first wedge filter plate hollow portion, said first wedge-shaped strings comprising an outmost wedge-shaped string and an innermost wedge-shaped string, said outmost wedge-shaped string having an outmost wedge-shaped string thickness, and the innermost wedge-shaped string having an innermost wedge-shaped string thickness, said innermost wedge-shaped string thickness being greater than a thickness of each of another of said first wedge-shaped strings and said outmost wedge-shaped string thickness being less than said thickness of each of another of said first wedge-shaped strings, wherein the thickness of each of said first wedge-shape strings increases from said outmost wedge-shaped string to said innermost wedge-shaped string, said outmost wedge-shaped string defining at least a portion of one of said filtering apertures and said innermost wedge-shaped string defining at least a portion of another one of said filtering apertures, wherein a dimension of said one of said filtering apertures is greater than a dimension of said another one of said filtering apertures, wherein a minimum size of said filtering apertures is 0.025mm.

17. A wedge filtration media in accordance with claim 16, wherein said second wedge-shaped strings comprise a second outmost wedge-shaped string and a second innermost wedge-shaped string, said second outmost wedge-shaped string having a second outmost wedge-shaped string thickness, and the second innermost wedge-shaped string having a second innermost wedge-shaped string thickness, wherein a thickness of each of said second wedge-shapes strings is less than said second innermost wedge-shaped string thickness and said second outmost wedge-shaped string thickness is less than said thickness of each of said second wedge-shaped strings, wherein the thickness of each of said second wedge-shaped strings increases from said second outmost wedge-shaped string to said second innermost wedge-shaped string.

18. A wedge filtration media in accordance with claim 12, wherein said first wedge-shaped strings comprise an outmost wedge-shaped string having an outmost wedge-shaped string thickness and an innermost wedge-shaped string having an innermost wedge-shaped string thickness, said outmost wedge-shaped string thickness being greater than a thickness of each of another of said first wedge-shaped strings and said innermost wedge-shaped string thickness being less than said thickness of each of another of said first wedge-shaped strings, wherein a thickness of first wedge-shaped strings increases progressively from said innermost wedge-shaped string to said outmost wedge-shaped string, said outmost wedge-shaped string forming at least a portion of a smallest filtering aperture and said innermost wedge-shaped string forming at least a portion of a biggest filtering aperture, wherein a minimum size of said filtering apertures is 0.025mm.

19. A wedge filtration media in accordance with claim 18, wherein said second wedge-shaped strings comprise a second outmost wedge-shaped string having a second outmost wedge-shaped string thickness and a second innermost wedge-shaped string having a second innermost wedge-shaped string thickness, said second outmost wedge-shaped string thickness being greater than a thickness of each of another of said second wedge-shaped strings and said second innermost wedge-shaped string thickness being less than said thickness of each of another of said second wedge-shaped strings, wherein a thickness of second wedge-shaped strings increases progressively from said second innermost wedge-shaped string to said second outmost wedge-shaped string.