Insulated solution injector, system including the same, and method of injecting using the same
AssigneeGE-Hitachi Nuclear Energy Americas LLC
InventorsThomas Alfred CAINE, Russell Alexander SEEMAN
Life of this patent
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Abstract
An insulated solution injector may include an outer tube and an inner tube arranged within the outer tube. The outer tube and the inner tube may define an annular space therebetween, and the inner tube may define a solution space within. The annular space may be configured so as to insulate the solution within the solution space. As a result, the solution may be kept to a temperature below its decomposition temperature prior to injection. Accordingly, the decomposition of the solution and the resulting deposition of its constituents within the solution space may be reduced or prevented, thereby decreasing or precluding the occurrence of a blockage.
Claims20
An insulated solution injector comprising:
- an outer tube having a first outer surface and a first inner surface;
- an inner tube arranged within the outer tube, the inner tube having a second outer surface and a second inner surface, the first inner surface of the outer tube and the second outer surface of the inner tube defining an annular space, the second inner surface of the inner tube defining a solution space;
- an inboard end section at a distal end of the outer tube and the inner tube, the inboard end section including a base portion and a shield portion projecting from the base portion, the base portion having a hole extending therethrough, the hole being in communication with the solution space, the shield portion having a groove extending along a length thereof from the base portion;
- and
- an outboard end section at an opposing proximal end of the outer tube and the inner tube.
An injection system comprising:
- a pipe having an exterior surface and an interior surface, the interior surface defining a flow space;
- and
- an insulated solution injector penetrating the pipe, the insulated solution injector including
- an outer tube having a first outer surface and a first inner surface;
- an inner tube arranged within the outer tube, the inner tube having a second outer surface and a second inner surface, the first inner surface of the outer tube and the second outer surface of the inner tube defining an annular space, the second inner surface of the inner tube defining a solution space;
- an inboard end section at a distal end of the outer tube and the inner tube, the inboard end section being within the flow space of the pipe, the inboard end section including a base portion and a shield portion projecting from the base portion, the base portion having a hole extending therethrough, the flow space being in communication with the solution space via the hole, the shield portion having a groove extending along a length thereof from the base portion;
- and
- an outboard end section at an opposing proximal end of the outer tube and the inner tube.
A method of injecting a solution into a high temperature liquid stream, the method comprising:
- inserting an injector into a pipe configured to carry a flow of the high temperature liquid stream, the injector configured to deliver the solution into the high temperature liquid stream, the injector including an outer tube and an inner tube arranged within the outer tube, the outer tube and the inner tube defining an annular space therebetween;
- insulating the solution from the high temperature liquid stream while the solution is in the injector;
- injecting the solution into the high temperature liquid stream;
- and
- shielding the solution from a full velocity of the flow during the injecting.
Dependencies are inferred from the claim text.