Energy saving spraying distillation type seawater desalination method under negative pressure and equipment

A technology of negative pressure distillation and equipment, which is applied in chemical instruments and methods, energy wastewater treatment, water/sewage treatment, etc., can solve the problems that the treatment cost per ton of water cannot be reduced, cannot be promoted, and the cost is high, so as to facilitate vaporization Evaporation and condensation speed are fast, and the effect of reducing conversion cost

Inactive Publication Date: 2005-03-30
田凤山
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two ways to desalinate seawater, one is distillation, but the cost is too high; the other is to use reverse osmosis membrane technology, due to the problem of membrane pollution, the c...

Method used

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  • Energy saving spraying distillation type seawater desalination method under negative pressure and equipment
  • Energy saving spraying distillation type seawater desalination method under negative pressure and equipment
  • Energy saving spraying distillation type seawater desalination method under negative pressure and equipment

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Embodiment Construction

[0044] Earlier raw water pool 8 and dense salt pool 9 are filled with seawater, and fresh water pool 10 is filled with fresh water. Press the start button and the automatic control system enters the program control of the water injection process: open the solenoid valve 42, start the pressure pump 6 to work, and the water in the raw water pool 8 is pressed into the pressure storage tank 61, the cooling area of ​​the condensation tank 2 and the solar heater 4 inside and spray out from the nozzle 14. When the bottom water level of the evaporation tank rose to the upper liquid level sensor 15, the solenoid valve 42 was closed and the pressure pump 6 was stopped. At this moment, the cooling area of ​​the condensation tank and the inside of the solar heater were all filled with water, and the water injection process ended. The automatic control system enters the program control of negative pressure formation: open the solenoid valve 71, start the vacuum pump 7 to work, the air in t...

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Abstract

The invented operation mode is to form negative pressure environment, atomizating at first, then evaporating. Evaporation tank is core of the system which consists of evaporation tank, condensation tank, liquid level tank, solar heater, water collecting tank, compression pump, vacuum pump, raw water tank, dense saline water tank, fresh water tank, heating unit, spray nozzle, air-water separator, heat transfer unit and autocontrolling system, changement of elevation level from 9M to 7M of the liquid level tank is utilized to form negative pressure area inside the evaporation tank, condensation tank and water collecting tank to reduce boiling point of seawater, heating unit is utilized to supply heat energy to make atomizated water temp. reaching boiling point, spray nozzle is used to atomizate seawater to be easy gasificated and evaporated, heat transfer unit is used to realize rapid condensation of vapour.

Description

technical field [0001] The invention relates to an energy-saving spray negative pressure distillation type seawater desalination method and equipment, which can be widely used in seawater desalination and fields requiring high water purity. technical background [0002] Water is the source of all living things and the lifeline of human beings. Although the earth is known as a water polo, 71% of the earth's surface is covered by water, but 97.5% of the water is seawater, 2% is covered by glaciers and ice caps, and the rest is stored deep underground. It is difficult for people to access, and the fresh water that can be used by humans is only about 0.26%. In the past 30 years, due to the rapid development of industry and agriculture, the living environment has been severely damaged, water resources have been polluted and wasted, and the population has increased, making water resources increasingly scarce. At present, more than 100 countries in the world are short of water, a...

Claims

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Application Information

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IPC IPC(8): C02F1/12C02F1/14
CPCY02A20/124Y02A20/142Y02A20/212Y02W10/37
Inventor 田凤山
Owner 田凤山
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