A pig stopping device for stopping a pipeline inspection gauge in the receiving station of a pipeline is provided. The device provides a cylindrical frame sized to be inserted into the receiving station of a pipeline. The cylindrical frame includes a pair of opposing circular plates having inner sur
A pig stopping device for stopping a pipeline inspection gauge in the receiving station of a pipeline is provided. The device provides a cylindrical frame sized to be inserted into the receiving station of a pipeline. The cylindrical frame includes a pair of opposing circular plates having inner surfaces connected by a plurality of elongated rods, thereby forming an interior volume within the cylindrical frame. The circular plates each comprise a plurality of apertures configured to allow the flow of liquid and debris therethrough and into the interior volume. A cage wraps around the exterior of the elongated rods, thereby enclosing the interior volume but allowing the flow of liquid therethrough. In this way, debris pushed into the interior volume of the pig stopping device by a pig or the flow of product in the pipeline is caught therein and prevented from flowing into a bypass line of the receiving station.
대표청구항▼
1. A pig stopping device, comprising: a first circular plate having a plurality of apertures;a second circular plate having a plurality of apertures;a plurality of elongated rods connecting the first circular plate and the second circular plate, the first circular plate attached to a first distal en
1. A pig stopping device, comprising: a first circular plate having a plurality of apertures;a second circular plate having a plurality of apertures;a plurality of elongated rods connecting the first circular plate and the second circular plate, the first circular plate attached to a first distal end of each of the plurality of elongated rods and the second circular plate attached to a second distal end of each of the plurality of elongated rods;a mesh cage disposed about the plurality of elongated rods, the mesh cage defining an enclosed interior volume;wherein the mesh cage comprises a plurality of apertures having a diameter sized to allow fluids therethrough and retain debris in the interior volume thereof. 2. The pig stopping device of claim 1, wherein the first and second circular plates have a diameter sized to fit into a receiving station of a pipeline and rest flush with the interior walls of the pipeline. 3. The pig stopping device of claim 2, wherein the diameter of the circular plates ranges from 12-16 inches. 4. The pig stopping device of claim 1, wherein the elongated rods have a linear length sized to extend past a bypass line of a receiving station of a pipeline. 5. The pig stopping device of claim 4, wherein the linear length of the elongated rods ranges from 4-6 feet. 6. The pig stopping device of claim 1, wherein the elongated rods are affixed adjacent to a perimeter of an inner surface of each of the first circular plate and the second circular plate. 7. The pig stopping device of claim 6, wherein the elongated rods are evenly spaced apart on the inner surfaces and extend horizontally therefrom, the elongated rods connecting the inner surface of the first circular plate to the inner surface of the second circular plate. 8. The pig stopping device of claim 1, wherein the mesh cage is affixed adjacent to a perimeter of an inner surface of each of the first circular plate and the second circular plate. 9. The pig stopping device of claim 1, comprising four elongated rods. 10. The pig stopping device of claim 1, wherein the plurality of apertures on the first circular and second circular plates are symmetrically aligned. 11. The pig stopping device of claim 1, wherein the plurality of apertures on the first circular plates and the second circular plates have a diameter sized to allow debris build-up therethrough. 12. The pig stopping device of claim 11, wherein the diameter of the plurality of apertures on the first and second circular plates is 2 inches. 13. The pig stopping device of claim 1, wherein the mesh is attached to the elongated rods and wraps around an exterior thereof. 14. The pig stopping device of claim 1, wherein the mesh is unattached to the elongated rods and wraps around an exterior of the elongated rods resting thereagainst. 15. The pig stopping device of claim 1, wherein the diameter of the plurality of apertures of the mesh cage range from 0.25-0.75 inches. 16. The pig stopping device of claim 1, wherein the circular plates are composed of a metal material selected from the group consisting of steel, brass, aluminum, and iron. 17. The pig stopping device of claim 1, wherein the elongated rods are composed of a metal material selected from the group consisting of steel, brass, aluminum, and iron. 18. The pig stopping device of claim 1, wherein then mesh comprises an interlaced network of wire composed of a metal selected from the group consisting of steel, brass, aluminum, and iron. 19. The pig stopping device of claim 1, wherein the mesh of the cage comprises an interlaced network of thread composed of polymeric material selected from the group consisting of nylon, polyetheretherketone, phenolic resin, polystyrene, polyethylene, polycarbonate, polytherimide, polysulfone, polyphenylsulfone, and polyvinyl chloride. 20. The pig stopping device of claim 1, further comprising a handle disposed on a circular plate.
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이 특허에 인용된 특허 (8)
Freeman, Eric N.; Morton, Joseph Alan, Bidirectional bristle pig with sliding collar.
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