JPS5898182A - Desalination of sea water - Google Patents

Abstract

PURPOSE:To obtain fresh water while performing the rapid efficient separation of water from a salt part, by mixing sea water with heating oil to diffuse steam from the sea water, and recovering said steam. CONSTITUTION:Sea water is poured into a cooker receiver preheated animal, vegetable or mineral oil and continuously heated at about 80 deg.C in a decompressed atmosphere of about 700mm.Hg to discharge steam. Hence, water is evaporated by the performance of agitating action under the condition that the sea water is boiled, while a salt part in the sea water remains under a coagulated condition in the oil. Since NaCl remains under a coagulated condition in the used oil without being dissolved, the separation of the salt part from the oil can be easily performed, and the used oil can be reused again and again.

Description

[Detailed description of the invention] The present invention relates to a seawater desalination method.

With this invention, instead of conventionally boiling seawater for desalination, it is possible to efficiently boil seawater with oil and separate salt and water quickly and effectively, thereby converting fresh water into fresh water. The purpose of the present invention is to provide a method for desalinating SfcWu water so that it can be obtained.

To explain in detail the embodiments of this invention, first, pre-heated animal oil 250 i4 and Vcs water 25
0 Kf k input, 700 suHg (Z) reduced pressure 9 k, T10 - 15 minutes at a temperature of about 80°C, continuous heating will produce stirring action in the state of boiling seawater, and moisture will be removed from the water. Fresh water is obtained by recovering the evaporated steam.

After the water evaporates, the salt in the seawater remains in the oil in a coagulated state.In addition to animal oils, vegetable oils and mineral oils may also be used, and such oils may be mixed with seawater without being heated in advance. It is also possible to mix and then heat the mixed seawater and oil to achieve transpiration.Heating at a temperature of about 80°C under a reduced pressure of 700 u+Hg7 means that even at an intensity of 80°C, the reduced pressure condition The reason for this low boiling point is to minimize the deterioration of the oil, and also to reduce the amount of NaCt in the seawater or high-temperature VC. It is designed to prevent NaCt from dissolving in oil and to remain in the oil in a coagulated state without dissolving as much as possible, and to prevent deterioration due to salt dissolution in oil. It is also possible to use a V strainer to effectively separate NaCl in seawater from water.

This generation process uses the principle that fresh water and salt are separated by evaporation of water by boiling seawater, which is a common method for desalination of seawater. It is characterized by the fact that water evaporates when mixed with oil, rather than through transpiration due to external heating of seawater, which is a nest of seawater.In order to mix and heat oil, oil and seawater When stirring and mixing with the seawater, the heated oil comes into contact with the seawater, and when the water evaporates due to the heated oil that comes into contact with the seawater, the specific gravity becomes competitive, and the water and oil replace each other and dissolve together with NaCL. Add water to crab oil immediately! The specific gravity of NaC increases rapidly and efficiently, and the water is quickly and efficiently separated from NaC6.
Since NaC1 is 41 heavier in specific gravity than oil and will not precipitate in oil, water and NaCl can be separated quickly and smoothly.

In this way, if water evaporates quickly, fresh water can be obtained by recovering the evaporated water, and the obtained 7'c evaporated water is separated from complete KNaC1 and converted into transpired water. It contains almost no NaCL, and complete desalination can be achieved without any salt particles attached during transpiration in conventional methods. Unlike heating, oil directly mixed with seawater spreads iK heat within the purified water, allowing water to evaporate in a short period of time.Also, since NaCL does not dissolve in the oil used and remains in a coagulated state, the oil It is easy to separate oil and salt from salt, and the oil used can be reused over and over again.The seawater desalination method of the present invention, which utilizes an oil tank, is a completely innovative method of desalination that has never existed before. This can be called a processing method.

Patent applicant: T:P Sono Shuzo

Claims (1)

[Claims] 1) A seawater desalination method that involves mixing S water with heated animal oil, vegetable oil, or mineral oil, and obtaining fresh water by recovering all the vapor that evaporates from seawater.