Method and apparatus for separating solution and desalting sea water
A seawater desalination and solution technology, which is applied in general water supply saving, heating water/sewage treatment, frozen water/sewage treatment, etc., can solve the problems of energy consumption, uneconomical, limited water, etc., and achieve the effect of increasing production and reducing costs
Inactive Publication Date: 2004-06-23
周政明
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[0003] In order to achieve the above purpose, when a large amount of solution is separated by heating method, it will consume considerable energy and is uneconomical.
For example, in the desalination of seawater, direct heating makes the water in the solution into steam, and then uses a vacuum pump to pump out the steam, which consumes a lot of energy, and the salt content will continue to increase in the process of water separation, requiring constant energy It takes a lot of investment to separate the water, which is very uneconomical
[0004] In addition, the various salt crystals produced during the high-temperature heating process will cause fouling problems during the process, resulting in a significant drop in the efficiency of the condenser, resulting in limited water that can be separated, which does not meet the needs of large-scale use.
[0005] This shows that above-mentioned conventional method still has many defects, needs to be improved urgently.
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[0038] see figure 1 , figure 1 It is the sketch map that the constant temperature distillation unit of the vacuum distillation of the present invention implements the constant temperature distillation method, the constant temperature distillation method is to utilize the principle that the boiling point of the liquid increases with the increase of the pressure, and the temperature difference of the vacuum causes the pressure difference of the saturated vapor, utilizes the constant temperature distillation of the vacuum distillation The unit is a method of continuously boiling and evaporating the degassed solution at a set temperature in a vacuum evaporation container without changing the pressure of the evaporation container, so as to maintain the balance of the thermal cycle of evaporation and condensation. Wherein, the degassed solution may be a liquid obtained after degassing a general mixed solution such as a waste solution, a medicinal solution, etc., or a liquid obtained...
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The present invention relates to constant temperature distillation process, and the solution separating and sea water desalting process and apparatus with the constant temperature distillation process in vacuum distillation, cooling and freezing. In multistage vacuum distillator, multistage vacuum cooler and multistage vacuum freezer and through constant temperature distillation, liquid exhausting vacuum freezing, solution transfer, heat circulation and solution regeneration, solution is separated and sea water is desalted in lowered cost.
Description
technical field [0001] The present invention relates to a constant temperature distillation method, and the multi-stage vacuum distillation, cooling, freezing solution separation and seawater desalination method using the method and its equipment, in particular to a vacuum container provided by a liquid-draining vacuum method. The vacuum environment, the degassed solution through the liquid-gas interface or liquid-solid interface to evaporate the degassed solution, cooling, and freezing multi-stage vacuum distillation, cooling, freezing solution separation method and seawater desalination method and its equipment. Background technique [0002] Conventional solution separation technology is widely used in the fields of general distillation, concentration of medicinal liquid, or desalination of seawater, etc., and this technology belongs to the separation of solutions. [0003] When a large amount of solution is separated by heating to achieve the above purpose, it will consu...
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Login to View More IPC IPC(8): B01D3/10C02F1/04C02F1/22
CPCY02A20/124
Inventor 周政明
Owner 周政明