Seawater desalination device

Abstract

The invention discloses a seawater desalination device. The seawater desalination device comprises a drying agent dehumidification runner, a solar heat collector, a heat exchanger, three cross-flow heat exchangers and three evaporative coolers. The drying agent dehumidification runner comprises a dehumidification area and a regeneration area, and processed air sequentially passes through the dehumidification area of the runner, the third cross-flow heat exchanger, the second cross-flow heat exchanger and the second evaporative cooler to prepare chilled water. The regenerated air sequentially passes through the third evaporative cooler, the third cross-flow heat exchanger, the first cross-flow heat exchanger, the solar heat collector, the regeneration area of the runner, the first cross-flow heat exchanger and the first evaporative cooler, and the regenerated air which finally achieves a saturated state performs heat exchange with the chilled water prepared on the processed air side in the heat exchanger, wherein water vapor is condensed into fresh water, and the fresh water flows out of a fresh water pipe. The seawater desalination device disclosed by the invention can reduce the consumption of electric power, improve the utilization rate of solar energy, improve seawater desalination efficiency and facilitate large-scale application.

Description

technical field [0001] The invention relates to the field of seawater desalination, in particular to a solar-driven dehumidification runner seawater desalination device. Background technique [0002] Nowadays, due to factors such as pollution and drought, fresh water resources are constantly decreasing, and the increasingly serious problem of water shortage has become a common problem faced by the whole world. The development and utilization of seawater desalination technology is an effective way to solve this problem. At present, conventional seawater desalination methods include distillation, reverse osmosis and ion exchange. However, high cost and high energy consumption are obstacles to the further development of these methods. [0003] The energy consumption of solar seawater desalination method is lower than that of conventional methods, and it is considered to be a kind of seawater desalination method with more development potential at present. However, from the curr...

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Problems solved by technology

Although the device improves the utilization rate of solar energy, moving parts such as solar automatic tracker and negative pressure pump not only increase the production cost but also consume a lot of energy.

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