초록 ▼

An embodiment of the invention provides an insert for an orifice fitting in a pipeline. The insert includes a retaining member having an exteriorly facing surface dimensionally corresponding to cross-sectional interior dimensions of a carrier in the orifice fitting. Thus, the insert is positionally

An embodiment of the invention provides an insert for an orifice fitting in a pipeline. The insert includes a retaining member having an exteriorly facing surface dimensionally corresponding to cross-sectional interior dimensions of a carrier in the orifice fitting. Thus, the insert is positionally stabilized in a predetermined position within the pipeline and in substantial registry with the orifice fitting. A lug is affixed to the interiorly facing surface of the retaining member. The lug projects inwards towards a center of the retaining member and provides an interiorly facing mounting surface. A dielectric insulating layer is on the interiorly facing mounting surface of the lug, wherein the dielectric insulating layer includes a first element of a cooperating attachment member. The cooperating attachment member removably securely retains a corrosion coupon on the dielectric insulating layer upon engagement of the first element with a second element of the cooperating attachment member.

대표청구항 ▼

1. An insert for an orifice fitting in a pipeline, the orifice fitting including a carrier, the carrier having select cross-sectional interior dimensions corresponding to cross-sectional interior dimensions of the pipeline, said insert including: a retaining member having an exteriorly facing surfac

1. An insert for an orifice fitting in a pipeline, the orifice fitting including a carrier, the carrier having select cross-sectional interior dimensions corresponding to cross-sectional interior dimensions of the pipeline, said insert including: a retaining member having an exteriorly facing surface dimensionally corresponding to the select cross-sectional interior dimensions of the carrier to positionally stabilize said insert in a predetermined position within the pipeline and in substantial registry with the orifice fitting, said retaining member also having an interiorly facing surface;a lug affixed to said interiorly facing surface of said retaining member, said lug projecting inwards towards a center of said retaining member, said lug providing an interiorly facing mounting surface;a dielectric insulating layer on said interiorly facing mounting surface of said lug, said dielectric insulating layer including a first element of a cooperating attachment member; anda second element of said cooperating attachment member, said cooperating attachment member removably securely retains a corrosion coupon on said dielectric insulating layer upon engagement of said second element with said first element. 2. The insert according to claim 1, further including at least one spacer having an interiorly facing surface and an exteriorly facing surface, wherein said interiorly facing surface of said spacer engages said exteriorly facing surface of said retaining member, and wherein said exteriorly facing surface of said spacer engages an interiorly facing surface of the carrier. 3. The insert according to claim 1, wherein said lug is between said retaining member and said dielectric insulated layer. 4. The insert according to claim 1, wherein said dielectric insulated layer is between said lug and the corrosion coupon. 5. The insert according to claim 1, wherein said lug has an L-shape cross-section. 6. The insert according to claim 1, wherein said dielectric insulated layer has an L-shape cross-section. 7. The insert according to claim 1, wherein said first element of said cooperating attachment member includes one of an aperture and a threaded channel, and wherein said second element of said cooperating attachment member includes an elongated member of a screw. 8. The insert according to claim 7, wherein said screw is formed from non-reactive material. 9. The insert according to claim 1, wherein the coupon includes an aperture for receiving said second element of said cooperating attachment member. 10. The insert according to claim 1, wherein said lug includes a threaded channel for receiving said second element of said cooperating attachment member. 11. A device for retaining a coupon within a pipeline, said device including: an insert element having an outer surface and an inner surface;a hub projecting inwardly from said inner surface of said insert element towards a center of said insert element;a dielectric insulated seat having a bottom surface and a top surface, said bottom surface being connected to said hub; anda fastener for removably securing the coupon to said dielectric insulated seat. 12. The device according to claim 11, wherein said insert element is adapted to be removably secured within a plate carrier. 13. The device according to claim 12, further including at least one spacer between said insert element and the plate carrier. 14. The device according to claim 12, wherein the plate carrier is positioned within an orifice fitting located between two pipes of the pipeline. 15. The device according to claim 11, wherein said insert element is a ring. 16. A method of using an insert for an orifice fitting in a pipeline, the orifice fitting including a carrier, said method including: positioning the insert in the carrier such that an exteriorly facing surface of a retaining member of the insert engages an interiorly facing surface of the carrier to positionally stabilize the insert in a predetermined position within the carrier;positioning the carrier in the orifice fitting such that a corrosion coupon is securely fastened within an interior of the insert is positionally stabilized in a predetermined position within an interior of the pipeline, the corrosion coupon being removably secured on a dielectric insulating layer on a lug of the insert, the lug being affixed to an interiorly facing surface of the retaining member and projecting inwards towards the interior of the insert. 17. The method according to claim 16, further including removably securing the corrosion coupon to the dielectric insulating layer with an attachment member. 18. The method according to claim 16, further including: removing the carrier from the orifice fitting;removing the insert from the carrier; andremoving the corrosion coupon from the insert. 19. The method according to claim 18, further including: replacing the removed corrosion coupon with a new corrosion coupon by removably securing the new corrosion coupon to the dielectric insulating layer of the insert with an attachment member;positioning the insert including the new corrosion coupon in the carrier; andpositioning the carrier in the orifice fitting. 20. The method according to claim 16, further including positioning at least one spacer on the exteriorly facing surface of the retaining member, wherein said positioning of the insert in the carrier includes positioning the insert such that an exteriorly facing surface of the spacer directly engages the interiorly facing surface of the carrier.