Systems and methods for remotely determining and changing cutting modes during decoking
First Claim
Patent Images
1. A system for removing coke from a coking vessel comprising:
- a cutting head with a plurality of nozzles separated into two groups, one group for boring and one for cutting, each group being supplied by fluid from a pipe independent from the other group.
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Accused Products
Abstract
A decoking system that not only enables an operator to remotely switch the coke-cutting process from boring to cutting mode without removing the drill stem from the coke drum, but also to remotely determine the drill stem'"'"'s mode so that efficiency, safety and convenience are not compromised, is provided.
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Citations
28 Claims
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1. A system for removing coke from a coking vessel comprising:
a cutting head with a plurality of nozzles separated into two groups, one group for boring and one for cutting, each group being supplied by fluid from a pipe independent from the other group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for removing coke from a coking vessel comprising:
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a cutting head with plurality of nozzles separated into two groups, one group for boring and one for cutting, each independently supplied by fluid;
a switch valve, wherein said switch valve segregates high-pressure fluid into separate delivery pipes, wherein said delivery pipes consist of at least one delivery pipe for boring and at least one delivery pipe for cutting, wherein said delivery pipes deliver fluid to a cutting head;
an integrated boring and cutting water delivery pipe, which begins where said boring water delivery pipe and said cutting water delivery pipe connect and integrate;
a rotatable integrated boring and cutting drill stem having a cutting head and a motor;
a union, wherein said union connects said integrated boring and water delivery pipe to said rotatable integrated boring and cutting drill stem.
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15. A method for removing coke from a coking vessel comprising:
ejecting high pressure fluid from a cutting head with plurality of nozzles separated into two groups, one group for boring and one for cutting, each independently supplied by fluid. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method for removing coke from a coke vessel, comprising the steps of:
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pressurizing liquid;
enabling, via a switch valve said pressurized liquid to enter into a boring water delivery pipe and into a cutting water delivery pipe alternatively, enabling said boring water delivery pipe and said cutting water delivery pipe to connectably form into an integrated boring and cutting water delivery pipe having an inner pipe and an outer pipe;
connecting said integrated boring and cutting water delivery pipe to an upper end of a union, which also has a lower end;
connecting a rotatable integrated boring and cutting drill stem having an inner and outer pipe, to said lower end of said union;
lowering said rotatable integrated boring and cutting drill stem into a coke drum containing coke;
switching said switch valve to allow said pressurized liquid to enter into said boring water delivery pipe, then into said inner pipe of said integrated boring and cutting water delivery pipe, through said union, and finally, into said inner pipe of said rotatable boring and cutting water drill stem, to a cutting head;
ejecting high pressure fluid from nozzles dedicated to boring on a cutting head to begin boring a hole through said coke, wherein said cutting head is comprised of a plurality of nozzles separated into two groups, one group for boring and one for cutting, each independently supplied by fluid switching said switch valve to allow said pressurized liquid to enter into said cutting water delivery pipe, then into said outer pipe of said integrated boring and cutting water delivery pipe, through said union, into said outer pipe of said rotatable boring and cutting water drill stem, and finally through said cutting head;
ejecting high pressure fluid from nozzles dedicated to cutting coke on a cutting head to begin cutting said coke within said coke vessel;
wherein said cutting head is comprised of a plurality of nozzles separated into two groups, one group for boring and one for cutting, each independently supplied by fluid;
symbolizing to an operator when said pressurized liquid is in said boring water delivery pipe and when said pressurized liquid is in said cutting water delivery pipe, and therefore, in said boring mode or cutting mode, respectively.
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Specification