A choke having a trim that includes a wedge-shaped member (“wedge”) and a cage with an opening for receiving the wedge. The wedge includes a first surface and a second surface that is angled with respect to the first surface. As the wedge is positioned into the opening of the cage, the space between
A choke having a trim that includes a wedge-shaped member (“wedge”) and a cage with an opening for receiving the wedge. The wedge includes a first surface and a second surface that is angled with respect to the first surface. As the wedge is positioned into the opening of the cage, the space between the second surface and a third surface inside the opening forms a throttling orifice that restricts the flow of fluid. The size of the throttling orifice is variable depending on the position of the wedge relative to the cage. The trim can provide a positive shut-off point that is separate from the throttling area.
대표청구항▼
1. An apparatus comprising: a wedge-shaped member of a valve, the wedge-shaped member having a first surface and a second surface that is angled with respect to the first surface;a stem coupled to the wedge-shaped member; anda cage of the valve, the cage having a main body that includes an opening t
1. An apparatus comprising: a wedge-shaped member of a valve, the wedge-shaped member having a first surface and a second surface that is angled with respect to the first surface;a stem coupled to the wedge-shaped member; anda cage of the valve, the cage having a main body that includes an opening that extends through the main body from a first end of the main body to a second end of the main body, the opening being formed by at least a third surface and a fourth surface of the cage and being configured to receive the wedge-shaped member through the first end of the main body such that: the first end of the main body is proximal to the stem, the second end of the main body is distal to the stem, a throttling orifice is formed as a space between the second surface and the fourth surface, and the stem can be moved into contact with a seal on the first end of the main body to fully impede flow of fluid through the throttling orifice. 2. The apparatus of claim 1, wherein the space between the second surface and the fourth surface is variable during operation of the valve depending on the position of the wedge-shaped member within the cage. 3. The apparatus of claim 2, wherein the wedge-shaped member is coupled to an actuator by the stem, and the actuator enables control of the position of the wedge-shaped member within the opening through movement of the stem. 4. The apparatus of claim 2, wherein the cage and the wedge-shaped member are constructed such that the space between the second surface and the fourth surface decreases as the wedge-shaped member is positioned further into the opening and increases as the wedge-shaped member is positioned further out of the opening. 5. The apparatus of claim 1, wherein the wedge-shaped member is received within the opening of the cage and the second surface and the fourth surface are substantially parallel. 6. The apparatus of claim 1, wherein the wedge-shaped member is received within the opening of the cage, the fourth surface comprises a first portion and a second portion that meet at a vertex, the first portion of the fourth surface is substantially parallel to the second surface, and the second portion of the fourth surface is not substantially parallel to the second surface. 7. The apparatus of claim 6, wherein the second portion of the fourth surface is angled with respect to the first surface, but at a different angle than with respect to the second surface. 8. The apparatus of claim 1, wherein the second surface of the wedge-shaped member is substantially flat. 9. The apparatus of claim 1, wherein the second surface of the wedge-shaped member comprises a set of grooves configured to provide multi-stage pressure drop control. 10. The apparatus of claim 9, wherein the grooves are substantially semi cylindrical in shape and are arranged perpendicularly with respect to an axis through the opening of the cage. 11. A system comprising: a wedge-shaped component;a stem coupled to the wedge-shaped component;an actuator configured to move the stem to vary the position of the wedge-shaped component; anda cage disposed in a passage of the system, wherein the cage includes a substantially cylindrical body with a first end proximal to the stem and a second end distal to the stem and an opening that extends through the body;wherein the actuator is configured to at least partially restrict the flow of a fluid through the passage by positioning the wedge-shaped component into the opening such that a throttling orifice is formed between a first surface of the wedge-shaped component and a second surface inside the opening, and to fully impede the flow of the fluid through the passage by moving the stem such that a surface of the stem fully contacts a seal disposed on the first end of the body of the cage. 12. The system of claim 11, wherein a positive shut-off point is formed when the surface of the stem fully contacts the seal, the positive shut-off point being separate from the throttling orifice. 13. The system of claim 12, wherein the fluid is not permitted to flow through throttling orifice when the positive shut-off point is formed. 14. The system of claim 12, wherein, when the stem fully contacts the seal, the wedge-shaped component is fully inserted inside the opening of the cage. 15. The system of claim 12, wherein the actuator, stem, wedge-shaped component, and cage form a trim of a choke valve. 16. The system of claim 15, wherein the system comprises a resource extraction system, and wherein the choke valve is part of the resource extraction system. 17. The apparatus of claim 1, comprising a choke including the wedge-shaped member and the cage, wherein the choke is arranged to allow fluid to flow from an inlet of the choke to an outlet of the choke through the throttling orifice, and the direction of flow into the inlet is angled with respect to the direction of flow out of the outlet.
Dukas Sander G. (Virginia Beach VA) Bailey Kevin S. (Hampton VA) Cooper Robert N. (Virginia Beach VA) Heck Michael D. (Virginia Beach VA), Gas flow regulator valve.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.