Atomizing desuperheater shutoff apparatus and method

A valve assembly for desuperheating a gas or a liquid having a longitudinal axis extending therethrough, comprising:

• a valve body having an inlet and an outlet, where a channel extends there between:
• a valve seat disposed proximate to said outlet within said channel;
• and
• a plug disposed within said channel and attached to a transversable actuator rod, wherein said transversable actuator rod translates said plug within said channel.

A method for desuperheating a gas or a liquid utilizing a valve assembly, comprising:

• detecting a temperature of said gas or liquid to be desuperheated;
• sending said detected temperature to a controller;
• sending a control signal to a valve actuator coupled to a valve, wherein said valve comprises:
• a valve body having an inlet and an outlet, where a channel extends there between:
• a valve seat disposed proximate to said outlet within said channel;
• and
• a plug disposed within said channel and attached to a transversable actuator rod,
• wherein said transversable actuator rod translates said plug within said channel;
• and
• positioning said plug proximate to the valve seat in response to the signal.

A for desuperheating a gas or a liquid utilizing a valve assembly, comprising:

• means for detecting a temperature of steam in a steam pipe;
• means for sending said temperature to a controller;
• means for controlling a control signal to a valve actuator coupled to a plug inside a valve;
• means for positioning said plug proximate to a valve seat inside said valve to increase or
• decrease a flow rate of a cooling traversing through said valve;
• and
• means for spraying said liquid coolant with a spray nozzle into said steam pipe.