Compact type distillation-process seawater desalting device

Abstract

The invention aims at providing a compact type distillation-process seawater desalting device. The compact type distillation-process seawater desalting device comprises a water feeding tank, a water feeding pump, an evaporator, a condenser, a condensate tank and a condensate pump, wherein the water feeding tank is connected with the water feeding pump by a water feeding pump inlet connecting pipe;the water feeding pump is connected with a water feeding pipeline by a water feeding pump outlet connecting pipe; the water feeding pipeline is connected with the evaporator by an evaporator water feeding inlet connecting pipe; the evaporator is provided with a steam inlet connecting pipe and is connected with the condenser through a secondary steam connecting pipe; the condensate tank is connected with the condenser; the condensate pump is connected with the condensate tank by a fresh-water transporting pipeline; the condensate pump is connected with a condensate pump outlet connecting pipewhich is connected with a qualified-water outlet pipeline and an unqualified-water outlet pipeline by a three-way mode; and an electromagnetic valve is arranged at the three-way position. The compacttype distillation-process seawater desalting device provided by the invention has the advantages that a vacuum ejector and a sewage discharging pump are not needed, so that the structure of the systemcan be simplified, the operations for running and maintenance are simpler and more convenient, the volume of the seawater desalting device is reduced, and simultaneously, the reliability of the device is greatly improved.

Description

technical field [0001] The invention relates to a seawater desalination device. Background technique [0002] China's water resources are relatively short and unevenly distributed. The per capita fresh water possession is only a quarter of the world's per capita. It is listed by the United Nations as one of the 13 water-poor countries. As the center of population concentration and economic development in China, the coastal areas are also the most water-scarce areas. In addition, the ship sails on the ocean, away from the land and the dock for a long time, limited by its own load capacity and space, the water replenishment of the power plant and the daily water for the crew are very limited. With the continuous development of seawater desalination technology in recent years, extracting fresh water from seawater has become an effective way to solve the shortage of water resources. [0003] At present, relatively mature seawater desalination technologies include multi-effect ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a compact distillation seawater desalination device for the outstanding problems of low energy utilization rate, complex structure, cumbersome operation, large device volume and easy fouling on the heat exchange surface of the ship seawater desalination device

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