Provided is a control valve trim, including a plug having a plurality of sections arranged in series along a longitudinal axis, wherein each of the plurality of sections has a diameter that is greater than the diameter of the preceding section, and a plurality of slots in the surface of each of the
Provided is a control valve trim, including a plug having a plurality of sections arranged in series along a longitudinal axis, wherein each of the plurality of sections has a diameter that is greater than the diameter of the preceding section, and a plurality of slots in the surface of each of the plurality of sections, and a liner, wherein the plug is disposed internal to the liner.
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1. A control valve system, comprising: a plug comprising a series of generally cylindrical sections increasing in diameter along a longitudinal axis of the control valve system, wherein each generally cylindrical section of the generally cylindrical sections comprises a plurality of concave depressi
1. A control valve system, comprising: a plug comprising a series of generally cylindrical sections increasing in diameter along a longitudinal axis of the control valve system, wherein each generally cylindrical section of the generally cylindrical sections comprises a plurality of concave depressions formed in an outer radial surface of the respective generally cylindrical section, wherein a first plurality of concave depressions of a first generally cylindrical section of the series of generally cylindrical sections is circumferentially offset from a second plurality of concave depressions of a second generally cylindrical section of the series of generally cylindrical sections, and wherein at least one generally cylindrical section of the generally cylindrical sections comprises at least one concave depression of the respective plurality of concave depressions that extends an entire axial length of the outer radial surface of the at least one generally cylindrical section relative to the longitudinal axis of the control valve system; anda liner comprising a plurality of radial holes disposed at a downstream end of the liner, wherein each radial hole of the plurality of radial holes extends from an external surface of the liner to an internal surface of the liner, and each radial hole of the plurality of radial holes is completely axially offset from the series of generally cylindrical sections of the plug relative to the longitudinal axis of the control valve system; wherein the liner comprises a series of bores along the longitudinal axis, wherein the series of bores increase in diameter from an inlet of the liner to an exit of the liner. 2. The control valve system of claim 1, wherein the first generally cylindrical section slightly increases in diameter from a first upstream portion of the first generally cylindrical section to a first downstream portion of the first generally cylindrical section. 3. The control valve system of claim 2, wherein the second generally cylindrical section slightly increases in diameter from a second upstream portion of the second generally cylindrical section to a second downstream portion of the second generally cylindrical section. 4. The control valve system of claim 3, wherein the plug comprises a collar section extending from the first downstream portion of the first generally cylindrical section to the second upstream portion of the second generally cylindrical section, wherein the collar section increases in diameter from the first downstream portion of the first generally cylindrical section to the second upstream portion of the second generally cylindrical section. 5. The control valve system of claim 1, wherein the plug comprises a generally conical cap surface at an upstream end of the plug. 6. The control valve system of claim 5, wherein the plug comprises a stem extending from a downstream end of the plug. 7. The control valve system of claim 1, wherein the first plurality of concave depressions is spaced equidistantly about a circumference of the first generally cylindrical section of the series of generally cylindrical sections, and the second plurality of concave depressions is spaced equidistantly about a circumference of the second generally cylindrical section of the series of generally cylindrical sections. 8. A control valve trim, comprising: a plug, comprising: a plurality of sections arranged in series along a longitudinal axis of the plug, wherein each section of the plurality of sections comprises a diameter that is greater than the diameter of the preceding section; anda plurality of concave depressions formed in an outer radial surface of each section of the plurality of sections, wherein each concave depression of the plurality of concave depressions extends only partially about a circumference of the respective section, and wherein at least one section of the plurality of sections comprises at least one concave depression of the respective plurality of concave depressions that extends an entire axial length of the outer radial surface of the at least one section relative to the longitudinal axis of the plug; anda liner, wherein the plug is disposed internal to the liner, and wherein the liner comprises a plurality of radial holes disposed at a downstream end of the liner, wherein the plurality of radial holes extends from an external surface of the liner to an internal surface of the liner, and each radial hole of the plurality of radial holes is completely axially offset from the plurality of sections of the plug relative to the longitudinal axis of the plug; wherein the liner comprises a plurality of internal bored sections arranged in series along a longitudinal liner axis about an interior of the liner, wherein each internal bored section of the plurality of internal bored sections comprises a first diameter that is greater than a second diameter of the preceding internal bored section, and wherein each section of the plurality of sections of the plug corresponds to a respective internal bored section of the liner. 9. The control valve trim of claim 8, wherein a first plurality of concave depressions of a first section of the plurality of sections is circumferentially offset from a second plurality of concave depressions of a second section of the plurality of sections. 10. The control valve trim of claim 8, wherein each section of the plug includes three concave depressions, and wherein a first set of three concave depressions in a first section of the plurality of sections is rotated 60 degrees from a second set of three concave depressions in a second section of the plurality of sections. 11. The control valve trim of claim 8, wherein the plug comprises a generally conical cap surface at an upstream end of the plug. 12. The control valve trim of claim 8, wherein the plug comprises a stem extending from a downstream end of the plug. 13. The control valve trim of claim 8, wherein each section of the plurality of sections comprises a tail portion formed in the outer radial surface of the respective section, wherein the tail portion tapers radially inward from an upstream end of the control valve trim to a downstream end of the control valve trim relative to the longitudinal axis of the plug.
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이 특허에 인용된 특허 (6)
Spils Richard W. (2225 Spenard Rd. Anchorage AK 99503), Angle globe valve.
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