Piping, header, and tubing arrangements for solar boilers

A solar boiler for solar power production comprising:

• a) a steam generator and a superheater each connected in fluid communication with a steam drum;
• b) a plurality of downcomers connected in fluid communication with the steam drum;
• c) a vertically oriented circulation header fluidly connected to the downcomers;
• and
• d) a plurality of suction lines in fluid communication with the circulation header, the suction lines each being configured and adapted to place a circulation pump in fluid communication with the circulation header, wherein the circulation header, suction lines, and downcomers are configured and adapted to draw substantially equal amounts of fluid from each of the downcomers even when flow is uneven among the suction lines.

A boiler for power production comprising:

• a) a steam generator and a superheater each connected in fluid communication with a steam drum;
• b) a circulation header in fluid communication with the steam drum and the steam generator for circulating water from the steam drum into the steam generator;
• and
• c) a plurality of cascaded headers fluidly connecting the circulation header to the steam generator, wherein the plurality of cascaded headers is configured and adapted to provide a substantially equal flow to panels of the steam generator.