Remotely Controlled Decoking Tool Used in Coke Cutting Operations
10 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a system that allows an operator to remotely switch between cutting and boring while removing solid carbonaceous residue from large cylindrical vessels called coke drums comprising a cutting head for ejecting high pressure fluids into the coke bed; a flow diversion apparatus; and a shifting apparatus.
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Citations
58 Claims
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1-29. -29. (canceled)
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30. A method for remotely switching between cutting and boring while removing coke from a coking drum comprising:
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allowing fluid to enter a cutting tool; utilizing a flow diversion apparatus to prevent said fluid from being ejected through cutting nozzles; ejecting high pressure fluid from a boring nozzle fluidly connected to said cutting head; decreasing the flow of fluid to the cutting head; allowing force applicator to move a shifting apparatus vertically; allowing vertical motion of shifting apparatus to rotate said flow diversion apparatus, wherein said flow diversion apparatus subsequently prevents high pressure fluid from reaching the boring nozzles; increasing the flow of fluid to the cutting head; ejecting high pressure fluid from said cutting nozzles. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
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39. A method for removing coke from a coking vessel comprising:
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allowing fluid to enter a cutting head, said cutting head comprising cutting nozzles and boring nozzles and fluid passages through said cutting head; blocking the flow of fluid to one of the cutting nozzles and the boring nozzles utilizing a flow diversion apparatus, wherein said flow diversion apparatus comprises a rotatable main body coupled to a flow diversion cap; and utilizing a shifting apparatus coupled to the flow diversion apparatus to rotate the flow diversion apparatus. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A method for removing coke from a coking vessel comprising:
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allowing fluid to flow into a cutting head, wherein said cutting head comprises a boring nozzle and a cutting nozzle; diverting flow of fluid exclusively into one of said boring nozzle and into said cutting nozzle; and shifting said diverting apparatus between cutting and boring modes. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58)
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Specification