Delayed coker isolation valve systems
First Claim
1. An isolation valve system comprising:
- a first seat;
a second seat aligned with said first seat, a blind;
a main body having an orifice dimensioned to align with an orifice in a line;
wherein said main body is coupled to said line;
an upper and lower bonnet coupled to said main body, wherein said bonnets may be removed in order to replace valve parts without separating the main body from the line; and
a plate located inside a bonnet, wherein the plate comprises a planar surface that contacts a surface of the blind.
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Accused Products
Abstract
The present invention provides more efficient, cost effective coke drum isolation valve devices and system as well as more efficient, cost effective methods for isolating the flow of matter from location to another in the delayed coker unit operation where the valve comprises a first seat; a second seat aligned with said first seat; a blind; a main body having an orifice dimensioned to align with an orifice in said line; wherein said main body is coupled to said line; an upper and lower bonnet coupled to said main body, wherein said bonnets may be removed in order to replace valve parts without separating the main body from the line; and a plate located inside a bonnet, wherein the plate comprises a planar surface that contacts a surface of the blind.
71 Citations
26 Claims
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1. An isolation valve system comprising:
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a first seat;
a second seat aligned with said first seat, a blind;
a main body having an orifice dimensioned to align with an orifice in a line;
wherein said main body is coupled to said line;
an upper and lower bonnet coupled to said main body, wherein said bonnets may be removed in order to replace valve parts without separating the main body from the line; and
a plate located inside a bonnet, wherein the plate comprises a planar surface that contacts a surface of the blind. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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7. The isolation valve system of claim I, wherein said seats are static seats.
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20. A method for isolating the flow of a fluid, gas or solid in a line said method comprising the steps of:
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equipping a line with an isolation valve, said isolation valve coupled to said line and comprising;
a main body having means for connecting said isolation valve to said line;
a seat; and
a blind coupled to said main body and actuated by an actuator, said blind capable of moving in a substantially lateral bi-directional manner within said isolation valve adjacent to said seat to control the opening and closing of said isolation valve, said blind providing a seal between said seat and said blind;
closing said blind and sealing said seat against said blind blocking the flow of matter through the line; and
opening said blind causing said blind to slide across said seat into an open position, allowing the flow of matter through the line. - View Dependent Claims (21, 22)
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23. A method of replacing elements of an isolation valve comprising:
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attaching the main body of an isolation valve system to a line where in the isolation valve system comprises;
a flange for attaching the valve to a line;
a first seat;
a second seat aligned with said first seat;
a blind, said blind capable of moving in a bi-directional manner within said line between said first seat and said second seat to control the opening and closing of isolation valve; and
an upper and lower bonnet coupled to opposing ends of said isolation valve;
uncoupling one of the bonnets from the main body;
allowing the main body of the valve system to remain attached to the line;
inspecting the interior elements of the isolation valve system;
removing an interior element of the isolation valve system;
replacing the interior element of the isolation valve system; and
coupling the uncoupled bonnet to the main body of the valve. - View Dependent Claims (24, 25, 26)
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Specification