Dirty water and exhaust constituent free, direct steam generation, convaporator system, apparatus and method

A system for generating steam, comprising:

• a direct steam generator;
• a feed conduit fluidly coupled to the direct steam generator configured for delivery of feedwater to the direct steam generator, wherein the feedwater includes organic and inorganic constituents;
• a fuel source fluidly coupled to the direct steam generator to provide power to operate the direct steam generator;
• at least one of an air conduit and an oxygen enriched air conduit fluidly coupled with the direct steam generator;
• a close coupled heat exchanger fluidly coupled to the direct steam generator, the close coupled heat exchanger configured to route saturated steam and combustion exhaust constituents produced by the direct steam generator through a condenser portion of the close coupled heat exchanger via a condenser side steam conduit and configured to condense the saturated steam to form a condensate, wherein the condenser portion of the close coupled heat exchanger includes a first corrugated heat exchange element, surrounded by an enclosure;
• a pressure reducing device disposed after the condenser portion of the close coupled heat exchanger and fluidly coupled to the condenser portion of the close coupled heat exchanger via a condenser side condensate conduit;
• a separation tank and water return system fluidly coupled to the pressure reducing device via an expansion conduit, wherein the separation tank and water return system is configured to separate the combustion exhaust constituents from the condensate;
• and
• an evaporator portion of the close coupled heat exchanger fluidly coupled with the separation tank and water return system via an evaporator side condensate conduit, wherein the evaporator portion is configured to evaporate the condensate from the separation tank and water return system via heat transfer between the condenser portion and evaporator portion to form super-heated steam, wherein the evaporator portion of the close coupled heat exchanger includes a second corrugated heat exchange element disposed on the enclosure on an opposite side of the enclosure from the first corrugated heat exchange element.

A system for generating steam, comprising:

• a direct steam generator configured to generate saturated steam and combustion exhaust constituents from feedwater;
• a close coupled heat exchanger fluidly coupled to the direct steam generator, the close coupled heat exchanger configured to route the saturated steam and combustion exhaust constituents through a condenser portion of the close coupled heat exchanger via a condenser side steam conduit and configured to condense the saturated steam to form a condensate, wherein the condenser portion of the close coupled heat exchanger includes a first corrugated heat exchange element, surrounded by an enclosure;
• a pressure reducing device located downstream of the condenser portion of the close coupled heat exchanger and fluidly coupled with a condenser side condensate conduit of the close coupled heat exchanger;
• a separation tank and water return system fluidly coupled to the pressure reducing device via an expansion conduit, wherein the separation tank and water return system is configured to separate the combustion exhaust constituents from the condensate;
• an evaporator portion of the close coupled heat exchanger fluidly coupled with the separation tank and water return system via an evaporator side condensate conduit, wherein the evaporator portion is configured to evaporate the condensate from the separation tank and water return system via heat transfer between the condenser portion and evaporator portion of the close coupled heat exchanger to form super-heated steam wherein the evaporator portion of the close coupled heat exchanger includes a second corrugated heat exchange element disposed on the enclosure on an opposite side of the enclosure from the first corrugated heat exchange element.