IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0117695
(2011-05-27)
|
등록번호 |
US-8439071
(2013-05-14)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
9 |
초록
▼
A vortex breaker fits over an outlet of a vessel. The breaker has a basket disposed on a base with an opening communicating with the vessel's outlet. The basket has a cylindrical sidewall screen with profiled wires arranged around bars that extend from the base. The basket also has a top screen atta
A vortex breaker fits over an outlet of a vessel. The breaker has a basket disposed on a base with an opening communicating with the vessel's outlet. The basket has a cylindrical sidewall screen with profiled wires arranged around bars that extend from the base. The basket also has a top screen attached to the sidewall screen. The top screen has wires arranged across a plurality of bars. Fluid flow passing through the screens is directed by the profiled wires and the bars. Below the top screen, a baffle plate diverts the fluid flow passing through the top screen to the periphery of the top plate. Inside the basket, a flow modifier has a vanes attached to the base and disposed radially around the base's opening. At least some of the vanes have cross-tees extending from the vane's sides to break the radially directed flow inside the basket.
대표청구항
▼
1. A vortex prevention apparatus, comprising: a screen basket disposing in a vessel for enclosing an outlet of the vessel; anda flow modifier disposed within the basket adjacent the outlet, the flow modifier at least including a plurality of first and second vanes disposed radially around the outlet
1. A vortex prevention apparatus, comprising: a screen basket disposing in a vessel for enclosing an outlet of the vessel; anda flow modifier disposed within the basket adjacent the outlet, the flow modifier at least including a plurality of first and second vanes disposed radially around the outlet and being alternatingly arranged around the outlet, the first vanes being first planar plates having first planar sides and having cross-tees extending from both of the first planar sides, the second vanes being second planar plates having second planar sides and lacking the cross-tees on the second planar sides. 2. The apparatus of claim 1, wherein each of the first and second vanes comprises a first end positioned adjacent the outlet,a second end positioned adjacent a sidewall of the screen basket,a first edge affixed to a base of the screen basket, anda second edge positioned adjacent a top of the screen basket. 3. The apparatus of claim 1, wherein the cross-tees are disposed on the first vanes at a first distance from a sidewall of the screen basket that is less than a second distance from the outlet. 4. The apparatus of claim 1, wherein the cross-tees extend from both the first planar sides of the first planar plates by a first distance that is less than half of a second distance between the adjacent first and second vanes. 5. The apparatus of claim 1, wherein the flow modifier comprises at least one stabilizer affixed to top edges of at least some of the first and second vanes. 6. The apparatus of claim 1, wherein the basket comprises: a base having an opening communicating with the outlet;a sidewall screen having a plurality of first wires arranged around a plurality of first bars extending from the base; anda top screen positioned on the sidewall screen and having a plurality of second wires arranged across a plurality of second bars. 7. The apparatus of claim 6, further comprising a baffle plate disposed between the top screen and the flow modifier, the baffle plate restricting fluid flow passing through the top screen to a peripheral edge of the baffle plate adjacent the sidewall screen. 8. The apparatus of claim 6, wherein each of the first wires comprises a profiled wire having a wider side exposed outside the basket and having a narrower side welded to the first bars. 9. The apparatus of claim 6, wherein each of the second bars has ends affixed to a surrounding band. 10. The apparatus of claim 9, wherein the surrounding band is affixed to the sidewall screen. 11. The apparatus of claim 6, wherein the sidewall screen comprises a plurality of modular panels connected together. 12. A vortex prevention apparatus, comprising: a base disposing in a vessel adjacent an outlet and having an opening communicating with the outlet;a basket disposed on the base, the basket at least including a sidewall screen having a plurality of first wires arranged around a plurality of first bars extending from the base, anda top screen disposed on the sidewall screen and having a plurality of second wires arranged across a plurality of second bars; anda flow modifier disposed within the basket, the flow modifier at least including a plurality of first and second vanes extending from the base, the first and second vanes disposed radially around the opening in the base and being alternatingly arranged around the opening, the first vanes being first planar plates having first planar sides and having cross-tees extending from both of the first planar sides the second vanes being second planar plates having second planar sides and lacking the cross-tees on the second planar sides. 13. A vessel, comprising: a shell defining a hollow and having an outlet;a screen basket disposed in the hollow of the shell and enclosing the outlet; anda flow modifier disposed within the basket, the flow modifier at least including a plurality of vanes disposed radially around the outlet and being alternatingly arranged around the outlet, the first vanes beinq first planar plates having first planar sides and having cross-tees extending from both of the first planar sides, the second vanes being second planar plates having second planar sides and lacking the cross-tees on the second planar sides. 14. The apparatus of claim 13, wherein each of the first and second vanes comprises a first end positioned adjacent the outlet,a second end positioned adjacent a sidewall of the screen basket,a first edge affixed to a base of the screen basket, anda second edge positioned adjacent a top of the screen basket. 15. The apparatus of claim 13, wherein the cross-tees are disposed on the first vanes at a first distance from a sidewall of the screen basket that is less than a second distance from the outlet. 16. The apparatus of claim 13, wherein the cross-tees extend from both the first planar sides of the first planar plates by a first distance that is less than half of a second distance between the adjacent first and second vanes. 17. The apparatus of claim 13, wherein the flow modifier comprises at least one stabilizer affixed to top edges of at least some of the first and second vanes. 18. The apparatus of claim 13, wherein the basket comprises: a base having an opening communicating with the outlet;a sidewall screen having a plurality of first wires arranged around a plurality of first bars extending from the base; anda top screen positioned on the sidewall screen and having a plurality of second wires arranged across a plurality of second bars. 19. The apparatus of claim 18, further comprising a baffle plate disposed between the top screen and the flow modifier, the baffle plate restricting fluid flow passing through the top screen to a peripheral edge of the baffle plate adjacent the sidewall screen. 20. The apparatus of claim 18, wherein each of the first wires comprises a profiled wire having a wider side exposed outside the basket and having a narrower side welded to the first bars. 21. The apparatus of claim 18, wherein each of the second bars has ends affixed to a surrounding band. 22. The apparatus of claim 21, wherein the surrounding band is affixed to the sidewall screen. 23. The apparatus of claim 18, wherein the sidewall screen comprises a plurality of modular panels connected together.
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