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Integral double-effect plate type seawater desalination device and working method thereof

A plate type, seawater technology, applied in chemical instruments and methods, seawater treatment, general water supply conservation, etc., can solve the problems of high manufacturing cost of seawater desalination devices

Active Publication Date: 2017-04-26
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0005] Considering the tonnage of the ship and the demand for cargo, the seawater desalination device needs to have the characteristics of small space occupation and high water quality. However, the current thermal seawater desalination device has a large overall structure and a huge external vapor-liquid separation area. Seawater is corrosive, and seawater desalination devices are generally made of corrosion-resistant titanium or copper and other precious metals, and the entire seawater desalination device is expensive to manufacture

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  • Integral double-effect plate type seawater desalination device and working method thereof
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  • Integral double-effect plate type seawater desalination device and working method thereof

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[0038] In order to make those skilled in the art better understand the technical scheme of the invention, the following in conjunction with the attached figure 1 , 2 The working process of the present invention is described in further detail.

[0039] The heat source flows into the heat source cavity 18 from the heat source inlet channel 11, releases heat to the seawater in the first-effect evaporation zone 21, and then discharges into the environment from the heat source outlet channel 12;

[0040]The cold source seawater flows into the cold source cavity 23 from the cold source inlet 15, and after absorbing the heat released by the pure steam in the second-effect condensation zone 20, the temperature rises to become low-temperature hot sea water, which is discharged from the cold source outlet channel 14, and the low temperature after discharge Hot sea water has two paths: one path flows directly into the environment; the other path flows into the second-effect evaporation ...

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Abstract

The invention discloses an integral double-effect plate type seawater desalination device and a working method thereof and belongs to the field of seawater desalination. The integral double-effect plate type seawater desalination device is characterized by being formed by compressing a series of seawater desalination plate sheets, wherein two different sealing strip structures are arranged between two adjacent plate sheets at intervals. Each seawater desalination plate sheet is sequentially provided with a first-effect heat exchange region, a first steam-liquid separation region, a second-effect heat exchange region, a second steam-liquid separation region, a condensation heat exchange region from bottom to top; and each plate sheet is also provided with a first steam-liquid mixture channel, a first pure steam channel, a second steam-liquid mixture channel, a second pure steam channel, a seawater inlet channel, a heat source channel, a cold source channel, a fresh water channel, a brine outlet channel and an inter-effect seawater channel. According to the integral double-effect plate type seawater desalination device, with reasonable arrangement of the sealing strip structures, various function regions required by seawater desalination are formed on the two sides of a same plate sheet, so that the compactness of the double-effect seawater desalination device is greatly improved; and due to less used corrosion resistant metal material, the cost is lower.

Description

technical field [0001] The patent of the present invention relates to an integrated double-effect plate seawater desalination device and its working method, belonging to the field of seawater desalination. Background technique [0002] Ships operating in the sea need to consume a lot of fresh water every day, and seawater desalination technology is becoming an important means of supplementing fresh water resources for ships. In the past few decades, seawater desalination technology has developed rapidly. At present, the most widely used seawater desalination technologies in industry are reverse osmosis membrane method and distillation method. [0003] Due to the short service life of the separation membrane, the operation and maintenance costs of the reverse osmosis membrane method are relatively high. In addition, the brine produced by the reverse osmosis membrane method contains a large amount of chemical agents, and direct discharge will cause water pollution. There are ...

Claims

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Application Information

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IPC IPC(8): C02F1/04C02F103/08
CPCC02F1/043C02F1/048C02F2103/08C02F2201/004C02F2301/08Y02A20/124
Inventor 韩东黄岭岳晨何纬峰蒲文灏
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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