Remotely controlled decoking tool used in coke cutting operations
First Claim
Patent Images
1. A system for removing coke from a coking vessel comprising:
- a cutting head;
a flow diversion apparatus comprised of a main body and flow diversion caps; and
a shifting apparatus.
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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.
63 Citations
30 Claims
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1. A system for removing coke from a coking vessel comprising:
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a cutting head;
a flow diversion apparatus comprised of a main body and flow diversion caps; and
a shifting apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12)
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9. The system of claim 9, where in the rotating means is comprised of a helical spline.
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10. A system for removing coke from a coking vessel comprising:
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a cutting head;
a flow diversion apparatus; and
a shifting apparatus, comprising a helical spline and a vertically splined post, for rotating said flow diversion apparatus. - View Dependent Claims (11, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for removing coke from a coking vessel comprising:
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means for cutting coke within a coke drum, comprising boring means and cutting means;
means for diverting the flow of fluid exclusively into said boring means or exclusively into said cutting means; and
means for remotely shifting said diverting means between cutting and boring modes. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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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;
preventing said fluid from being ejected through cutting nozzles, where in said blocking is accomplished by utilizing a flow diversion apparatus;
ejecting high pressure fluid from a boring nozzle coupled to said cutting head;
decreasing the flow of fluid to the cutting head;
allowing force applicator to move a shifting apparatus vertically upward;
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 form a cutting nozzle coupled to said cutting head.
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Specification