Method and device for desalting sea water using mechanical compression distillation method

A technology of mechanical compression and distillation, applied in steam pressurized evaporation, multi-effect evaporation, general water supply saving, etc., can solve the problems of limiting the cost of seawater desalination, unable to adopt seawater desalination distillation process method, and unable to fully utilize the heat energy of heating steam, etc. , to achieve the effect of improving equipment efficiency, improving service life and prolonging life

Inactive Publication Date: 2004-11-17
TIANJIN SEA WATER DESALINATION & COMPLEX UTILIZATION INST STATE OCEANOGRAPHI
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Problems solved by technology

[0004] At present, seawater desalination devices using multi-stage flash evaporation and multi-effect distillation methods cannot make full use of the heat energy of heating steam, thereby limiting the

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  • Method and device for desalting sea water using mechanical compression distillation method
  • Method and device for desalting sea water using mechanical compression distillation method
  • Method and device for desalting sea water using mechanical compression distillation method

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0036] Such as Figure 1 to Figure 4 As shown, the mechanical compression distillation seawater desalination device of the present invention includes a steam mechanical compressor 100, a plurality of evaporators 200, 500 and 600, and a condensing tube bundle 201 placed in each evaporator, a spray system 202, and a fresh water tank 203 and the foam catcher 204, the spray system 202 located above the condensing tube bundle 201 is connected to the seawater inlet 901 through a connecting pipe, and the outlet of the steam mechanical compressor 100 is connected to the first effect evaporator 200 in the plurality of evaporators. The condensation tube bundle 201 of the first effect evaporator 200 is connected to the fresh water tank 203, and the steam outlet of the first effect evaporator 200 is connected to the next effect evaporator, for example, in the second effe...

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Abstract

The invention discloses a sea-water distillation apparatus by mechanical compression distillation method which comprises a steam mechanical compressor, a plurality of evaporators and condensation tubes, spraying systems, fresh water tanks and foam trapping nets arranged in the evaporator, wherein the exit of the steam mechanical compressor is connected with the condensation tube in the first evaporator in the multiple evaporators, the condensation tube in the first evaporator is connected with the fresh water tank, the vapor exit of the first evaporator is connected with the condensation tube in the next evaporator, and so on, until the last evaporator, thus multiple effect step by step evaporation is realized by the various evaporators. The invention also discloses a process for sea water desalination by using the sea-water distillator.

Description

technical field [0001] The invention relates to a seawater desalination device and method thereof, in particular to a freshwater production device and method through seawater vaporization and condensation. Background technique [0002] Distillation seawater desalination technology is a distillation process, that is, the process of condensing the steam evaporated by heating seawater through distillation to produce fresh water and concentrate seawater at the same time. [0003] Seawater desalination distillation methods mainly include multi-stage flash evaporation and multi-effect distillation. Among them, multi-stage flash evaporation is a seawater desalination process that first uses steam to preheat seawater, and then lowers the pressure step by step to quickly evaporate seawater to obtain fresh water. 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 condens...

Claims

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Application Information

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IPC IPC(8): B01D1/26B01D1/28C02F1/04
CPCY02A20/124
Inventor 阮国岭吕庆春尹建华赵河立初喜章
Owner TIANJIN SEA WATER DESALINATION & COMPLEX UTILIZATION INST STATE OCEANOGRAPHI
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