Patent ID: 8307887

Claim:
A multi-line heat exchanger system for a water vapor distillation apparatus, the system comprising: a water vapor distillation apparatus comprising: a plurality of two-channel heat exchangers comprising: a first intake input connected to an intake water fluid line, wherein the two-channel heat exchangers fluidly connected to one another by the intake water fluid line; a first hot water input connected to a first hot water fluid line, the first hot water fluid line fluidly connecting a first two-channel heat exchanger and a third two-channel heat exchanger, wherein the first hot water input is fluidly connected to a blowdown water fluid line in the water vapor distillation apparatus; and a second hot water input connected to a second hot water fluid line, the second hot water fluid line fluidly connecting a second two-channel heat exchanger and a fourth two-channel heat exchanger, whereby multiple hot water inputs are exchanged with the intake water, wherein the second hot water input is fluidly connected to a product water fluid line in the water vapor distillation apparatus.