| 摘要 |
A desalination system in the form of a submerged gas evaporator that includes a vessel, a gas delivery tube partially disposed within the vessel to deliver a gas into the vessel and a fluid inlet that provides a fluid to the vessel at a rate sufficient to maintain a controlled constant level of fluid within the vessel. During operation, gas introduced through the tube mixes with the fluid and the combined gas and fluid flow at a high rate with a high degree of turbulence, thereby promoting vigorous mixing and intimate contact between the gas and the fluid, which leads to a more efficient and complete evaporation. Additionally, vapor exiting the submerged gas evaporator is condensed in a condensing unit thus precipitating vapor into a liquid for removal. |
| 主权项 |
1. A desalination system, comprising:
an evaporator unit, the evaporator unit including an evaporator vessel, an ambient air supply tube extending into the evaporator vessel, the ambient air supply tube including an open end within the vessel, a saltwater inlet port for supplying saltwater into the evaporator vessel, a condensed saltwater outlet port for releasing condensed saltwater from the evaporator vessel, a gas exit port that directs gas out of the evaporator vessel, and a weir disposed within the evaporator vessel adjacent the ambient air supply tube, a space between the weir and the ambient air supply tube defining a first confined volume; a level sensor disposed within the evaporator vessel for sensing a level of saltwater within the evaporator vessel and a control system operatively connected to the level sensor, the control system controlling fluid flow through the saltwater inlet port and through the saltwater outlet port to maintain an operating level of saltwater within the evaporator vessel at or above the open end of the ambient air supply tube; and a condensing unit, the condensing unit including a condensing vessel having an inlet and an outlet for supplying a cooling liquid to an interior of the condensing vessel, a vapor pipe passing through the condensing vessel and located at least partially within the condensing vessel at an elevation below a normal operating surface level of the cooling liquid, the vapor pipe being fluidly connected to the gas exit port, and a condensed water removal valve for removing condensed water from the vapor pipe, wherein the weir includes a first weir end and a second weir end, a first circulation gap being defined between the first weir end and a first wall of the evaporator vessel and a second circulation gap being defined between the second weir end and a second wall of the evaporator vessel, dispersal of ambient air through the open end of the ambient air supply tube causing a continuous flow pattern of combined ambient air and saltwater upward through the first confined volume, outward through the first circulation gap, where ambient air separates from the saltwater, down through a second confined volume between the weir and the evaporator vessel, and through the second circulation gap back into the first confined volume. |
