High efficiency sea water desalination device and method by distillation

A seawater, high-efficiency technology, applied in general water supply conservation, heating water/sewage treatment, etc., can solve the problems of insufficient utilization of heating steam heat energy, seawater desalination cost constraints, etc., to improve equipment efficiency, improve product water quality, and prolong life. Effect

Inactive Publication Date: 2004-12-15
TIANJIN SEA WATER DESALINATION & COMPLEX UTILIZATION INST STATE OCEANOGRAPHI
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Problems solved by technology

[0004] Existing seawater desalination devices using multiple-effect distillation methods do not make...

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  • High efficiency sea water desalination device and method by distillation
  • High efficiency sea water desalination device and method by distillation
  • High efficiency sea water desalination device and method by distillation

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Embodiment Construction

[0040] For ease of description, a five-effect device is used as an example to describe the technical solution below, and the seawater desalination device of the present invention is not limited to five-effects.

[0041] Such as figure 1 As shown, the present invention mainly consists of first effect to fifth effect evaporators 1 to 5, condenser 6, raw material water pump 7, chemical potential remover 8, steam jet vacuum pump 9, steam jet circulation pump 10, condensed water return pump 11 , inter-effect pump II12, inter-effect pump I13, cooling water pump 14, product water pump 15, concentrated water pump 16, condensate water balance tank 17, first effect to fifth effect fresh water flash tank 18-22, product water balance tank 23, Concentrated water flash tanks 24-27 for the second effect to the fifth effect, and a concentrated water balance tank 28 are formed.

[0042] Such as figure 2 As shown, the main components of each effect evaporator are concentrated seawater outlet...

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Abstract

The present invention discloses sea water desalination apparatus and method with heat energy of steam to raise heat efficiency. The sea water desalination apparatus in distillation method has several evaporators connected serially with last evaporator connected to condensator, showering system over the evaporator condensating pipe bundle connected to sea water inlet, concentrated water flash tanks and fresh water flash tanks connected to corresponding evaporators separately, concentrated water balance tank connected to the last concentrated water flash tank and product water balance tank connected to the last fresh water flash tank. The present invention is suitable for utilizing steam from thermoelectric power plant or oil refinery to desalt sea water or bitter salty water.

Description

technical field [0001] The invention relates to a seawater desalination device and method, in particular to a freshwater production device and method through seawater vaporization and condensation. Background technique [0002] Distillation seawater desalination technology is the process of condensing the steam evaporated from seawater through the distillation process to produce fresh water and concentrate seawater at the same time. [0003] The seawater desalination distillation method is mainly a multi-effect distillation method. Multi-effect distillation is a seawater desalination process that uses steam to condense in the condensation pipe to make seawater evaporate step by step outside the condensation pipe to obtain fresh water. [0004] The existing seawater desalination device using the multi-effect distillation method does not make full use of the thermal energy of the heating steam, so that the cost reduction of seawater desalination is...

Claims

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Application Information

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IPC IPC(8): C02F1/04C02F1/06
CPCY02A20/124
Inventor 阮国岭吕庆春尹建华赵河立
Owner TIANJIN SEA WATER DESALINATION & COMPLEX UTILIZATION INST STATE OCEANOGRAPHI
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