Multimode direct injection heater assembly

A direct injection injector assembly comprising:

• an injector body having an interior surface and an exterior surface that are separated from one another by a single wall and having an inlet that is configured to be fluidly connected to a first fluid path and a passage constructed to be fluidly connected to a second fluid path;
• a plurality of ports formed through the single wall of the injector body between the interior surface and the exterior surface and offset from the passage and disposed between the first fluid path and the second fluid path;
• a modulating component disposed within the injector body that fluidly separates the first fluid path from the passage and is slideable relative thereto along the interior surface such that a relative position of the modulating component relative to the injector body defines a variable number of the plurality of ports that are available for direct fluid exchange between the first fluid path and the second fluid path and wherein fluid associated with the first fluid path mixes with fluid associated with second fluid path along the exterior surface of the single wall of the injector body upon exit from the respective variable number of plurality of ports that are available for direct fluid exchange and solely responsible for dispersion of a fluid associated with the first fluid path into another fluid associated with the second fluid path;
• and
• wherein the relative position of the modulating component relative to the injector body during a first stage of operation is based on pressure of flows associated with the first fluid path and the second fluid path and during a second stage of operation is manipulated by a biasing device such that pressure of the flows of the first fluid path and the second fluid path are dissimilar.

A direct injection steam heater injector assembly comprising:

• an injector body defined by a cylinder having a longitudinal length of a singular wall and a plurality of holes formed through the injector body between an interior surface and an exterior surface of the singular wall and along a portion of the longitudinal length;
• a fluid cylinder disposed about the injector body that defines a fluid inlet and a fluid outlet and such that fluid passing through the fluid cylinder between the fluid inlet and the fluid outlet mixes with fluid exiting the injector body along the exterior surface of the singular wall thereof and such that only the plurality of holes formed through the singular wall of the injector body disperse fluid exiting the singular wall of the injector body into fluid passing through the fluid cylinder before exit of mixed fluid at the fluid outlet of the fluid cylinder;
• a steam inlet defined by the injector body and constructed to connect the injector body to a steam source;
• a modulator body disposed in the injector body and configured to be slideable relative thereto along the interior surface of the singular wall along the portion of the longitudinal length of the injector body;
• a seat secured to the injector body at a location that is offset longitudinally from the steam inlet and fluidly isolated from the steam inlet by the modulator body;
• and
• a biasing device disposed between the seat and the modulator body that is operable to resist translation of the modulator body relative to the injector body.