KR100490922B1 - Deep Ocean Water - Google Patents

Abstract

Centrifugation to separate the deep sea water frozen by the first freezer (10), the first deep freezer to freeze the deep sea water of low temperature deep intake water supplied from the deep sea to the fresh water ice and concentrated sea water centrifugation Separator concentrator 20, seawater heat exchanger 30 for cooling the concentrated seawater separated from fresh water back to about -15 ℃, secondary refrigerator 60 for coagulating the concentrated sea water below the process point (-23 ℃), boiler Vacuum drying chamber 40 for drying until the optimum water content is reached without destroying the minerals contained in the concentrated seawater ice using sublimation heat of (45), sublimation of the vacuum drying chamber 40 and vacuum evaporated fresh water vapor Is provided with a fresh water condensation chamber (50) for recovering in the form of ice, the fresh water (72) flows into the fresh water condensing chamber (50) and automatically separates the fresh water in the form of ice collected in the heat exchanger (55) Fruit (70) Also it characterized in that it comprises a vacuum pump 80 for forming a vacuum pressure in the vacuum drying chamber 40 and the fresh water condensing chamber (50).

Description

Freshwater and salt production method using centrifugal concentrator and vacuum freeze dryer and its device {Deep Ocean Water}

The present invention relates to deep ocean water, and more particularly, to deep sea water taken from deep seas by using a centrifugal concentrator and a vacuum freeze dryer. The present invention provides a method and apparatus for producing sustainable salt.

Due to the rapid development of the industry, the use of industrial water is greatly increased, and the daily consumption of daily water due to the improvement of diet is also increasing.

Therefore, in the case of island areas, desalination facilities using ocean surface water have been proposed to solve the water shortage caused by the lack of water resources and the increase of surface and groundwater contamination.

However, as the industrialization continues, the surface waters of the sea also become more contaminated by industrial wastes, and recently, more and more attention is being paid to deep sea waters of deep sea with low temperature stability, abundance and cleanliness.

As shown in Fig. 1, deep sea water contains Zn, Cu, Fe, P, etc. in addition to the four essential minerals, magnesium (Mg), calcium (Ca), potassium (K), and sodium (Na). There is a balance of minerals compared to the surface and ground water.

And, deep sea water has excellent low temperature stability that keeps water temperature (about 9.5 ° C lower than surface) and below 2 ° C almost unchanged all year round, and plants grow because photosynthesis does not occur because sunlight does not reach compared to surface water. It contains a lot of inorganic nutrients, and it contains a balance of essential trace elements and various minerals.

In addition, deep sea water is excellent in immune function against various diseases caused by stress or constitution, and it is cleanest on earth because it is not contaminated with general bacteria from air or chemicals compared to surface water or ground water that we use as drinking water. Known as water.

In addition, the salt essential to the human body is produced by the salt salt method (natural evaporation method), the flat addition heating method (artificial heating type) and the ion exchange resin method.

In the above, the natural salt salt method has a problem in that if the cleanliness of raw water is not secured, the natural salt is not only safe from contamination but also takes a long time to manufacture.

The flat addition heating method consumes a lot of energy, and when applied to deep sea water at low temperature, it consumes a lot of energy and has the disadvantage of destroying minerals.The ion exchange resin extracts only NaCl by ion exchange resin and completely removes other minerals. As a result, supplementation of minerals is difficult and is not known to be beneficial to the human body.

As a conventional technique related to the method and apparatus for producing seawater and water containing a high concentration of salt with fresh water and salt, using the 'depth pressure and reverse osmosis method' filed in Korean Patent Institute No. 2001-12084 (2001.03.08) There is a fresh water and salt production method and apparatus thereof, but this method is a method of obtaining fresh water by supplying seawater to a reverse osmosis filter, and not only has low yield per unit time, but also has low productivity due to the inevitable necessity of frequent cleaning and replacement of the filter. Is known to have a problem.

Accordingly, an object of the present invention is to produce a salt that can effectively utilize the cleanliness and low temperature of the deep sea water and sufficiently maintain the mineral component.

According to the above object, the present invention is characterized by providing a salt that can maintain the mineral containing the deep fresh water and the deep sea water of high purity by improving the application of the deep sea water centrifugal concentrator and vacuum freeze dryer.

Thus, in the fresh water and salt produced by the present invention, first, fresh water is able to efficiently utilize high cleanliness and low temperature, and salt, that is, the salt that maintains the mineral component, is an adult disease caused by the difficulty of ingesting minerals in accordance with the change of diet in Korea. It can greatly contribute to the prevention of diseases such as stress, constitution and bad.

It also promotes the metabolism of electrolysates such as body fluids, sweat, and urine through mineral metabolism, and replenishes minerals consumed by sweat during exercise and hot weather. Trace metals as coenzymes promote protein metabolism and skin resuscitation. It is effective for skin diseases including atopy.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail as follows.

FIG. 2 is a diagram showing a saturated vapor pressure relationship between water and ice, and FIG. 3 is a chart comparing the saturated vapor pressure relationship between water and ice.

As shown in the figure, since the freezing point is 0 ° C, the water becomes completely iced at a temperature lower than 0 ° C.

In the case of sea water, the freezing point decreases due to the effect of salinity, and it starts to freeze at -2 ° C. Therefore, as the ice is released, the salt of the seawater becomes thicker, and the ice and concentrated seawater remain mixed with each other.

Therefore, concentrated seawater has a high salinity, so the freezing point decreases and does not freeze unless the temperature is lowered. Thus, as the temperature decreases, the ice ice increases, and the salinity of the concentrated seawater also increases.

By this repetition, the temperature is lowered as the mixed state of the source ice and the concentrated seawater. The lower the cooling temperature, the more the amount of the source ice is increased, and the concentrated seawater becomes thicker.

Finally, the salt is solidified by precipitation as NaCl-2H2O at -23 ° C without being completely dissolved in water.

This temperature is called the “process point” and the seawater is completely frozen, starting at -23 ° C and becoming solid.

Thus, from the freezing point of -2 ℃ to -23 ℃ of the process point, the ice and concentrated seawater is a solid mixture, the temperature is relatively high, and the ratio of the source ice is low, it has fluidity in one sherbet state.

This is due to the formation of very small crystals from 0.1mm to 0.5mm in diameter, which are produced by the cooling of seawater.

On the other hand, when the temperature is lowered and the ratio of the ice is increased, the shape is retained, but it is in the form of a semi-solid mixture which simply collapses with weak force.

Therefore, the present invention is produced by separating the ice and concentrated seawater of the launching water into a concentrated seawater and high clean fresh water using a centrifugal concentrator in the above step, the separated concentrated seawater further lowers the temperature and then does not destroy the minerals in the vacuum drying chamber. It is characterized by the production of salts containing sufficient mineral components by drying until the optimum water content is reached.

To this end, the present invention centrifuged a portion of the fresh water ice and concentrated seawater produced by freezing the deep sea water of low temperature deep intake water supplied from the deep sea to about -10 ℃ using a first freezer,

Taking the fresh water ice separated in the step, cooling the concentrated seawater to about -15 ℃ again to send it to the vacuum drying chamber,

Solidifying to a second freezer up to the process point of the concentrated seawater (-23 ℃),

Producing salt by drying the sublimation heat supplied to the drying chamber until the optimum water content is reached without destroying the minerals contained in the concentrated seawater ice,

The fresh water vapor sublimed and vacuum evaporated in the above step is characterized in that it comprises the step of recovering in the form of ice in the fresh water condensation chamber.

As described above, the present invention provides that the deep sea water taken from the deep sea is separated into freshwater ice and concentrated seawater using a primary freezer and a centrifugal concentrator, and the concentrated seawater is solidified to a process point or less using a secondary freezer in a drying room. Salt is produced by drying the minerals so that they are not destroyed, and the vapor evaporated in the drying chamber can collect the fresh water in the form of ice in the condensation chamber, thereby producing mineral salt and high clean fresh water.

The apparatus for producing high-clean freshwater and mineral salts using the above-described method includes a primary freezer (10) and a primary unit, which freeze the deep sea water at low temperature with intake from the deep sea to about -10 ° C, as shown in FIG. A centrifugal concentrator 20 for centrifuging the deep sea water frozen by a freezer to separate the freshwater ice and the concentrated seawater and recovering the freshwater, and a seawater heat exchanger for cooling the concentrated seawater from which the fresh water is separated to about -15 ° C. ), Using the sublimation heat of the secondary refrigerator (60) and the boiler (45) to solidify the concentrated seawater below the process point (-23 ℃) to reach the optimum water content without destroying the minerals contained in the concentrated seawater ice Vacuum drying chamber 40 to be dried until, the fresh water condensation chamber 50 to recover the sublimation of the vacuum drying chamber 40 and the vacuum evaporated fresh water vapor in the form of ice, the thermal bridge is introduced into the fresh water condensing chamber 50 Bran fruit 70 provided with a heater 72 to automatically detach and remove the ice-like fresh water collected in the machine 55, and a vacuum to form a vacuum pressure in the vacuum drying chamber 40 and the fresh water condensation chamber 50. It becomes the structure containing the pump 80.

In the above-described configuration, the seawater heat exchanger 30 for cooling the concentrated seawater to about -15 ° C is constituted by a plate-type triple heat exchanger through which three kinds of fluids are circulated.

In the seawater heat exchanger (30), three fluids such as a refrigerant of a first refrigerator, a secondary brine fruit and a concentrated seawater flowing through the first seawater heat exchanger are circulated, respectively, and heat exchange is performed in the heat exchanger.

The steam trapping condensation heat exchanger 55 installed in the fresh water condensation chamber 50 is also constituted by a plate-type triple heat exchanger through which three types of fluids are circulated.

The condensation heat exchanger 55 includes three fluids such as brine fruit 70 heated to a high temperature by the heater 72, a refrigerant of the secondary refrigerator 60, and water vapor that is sublimed and dried from the drying chamber. 55) is configured to allow triple heat exchange.

Therefore, the condensation heat exchanger 55 has a cooling function of cooling the brine fruit 70 when the concentrated seawater of the vacuum drying chamber 40 is cooled to a process point or less, and the condensation heat exchanger when collecting steam introduced from the vacuum drying chamber 40. Cooling the temperature of the gas (55) to about -60 ℃ to easily guide the water vapor to the condenser by using the difference in the saturated vapor pressure between the vacuum drying chamber 40 and the condensation chamber 50, and heated by the heater 72 The brine fruit 70 has a function of automatically separating and detaching fresh water ice solidified on the surface of the condensation heat exchanger 55 from the surface of the heat exchanger 55.

And a refrigeration system for cooling the deep sea water to -15 ℃ using a general Non-CFC freezer, steam condenser for further cooling the concentrated sea water in the vacuum drying chamber 40 and to capture the water vapor in the fresh water condensing chamber (50) Secondary refrigerator 60 is composed of a two-stage compression refrigeration because it requires a temperature of about -60 ℃.

The vacuum drying chamber 40 and the fresh water condensation chamber 50 to which the vacuum pump 80 is connected are configured to be hermetically sealed to maintain airtightness, supply sublimation heat to the vacuum drying chamber 40, and to the fresh water condensing chamber 50. The brine fruit for separating icing fresh water ice can be heated, as well as a separate heater that serves as steam sterilization therein.

On the other hand, the requirements for freeze drying,

(1) Concentrated seawater should be frozen as a solid below the process point;

(2) The condensed surface should be able to maintain below -40 ℃,

(3) The absolute pressure of the system should be maintained at a vacuum degree of 1 ～ 6 Torr,

(4) Control the heat source applied to concentrated seawater and ice water from -60 ℃ to + 50 ℃.

The present invention configured as described above uses a centrifugal concentrator 20 for the partial freshwater ice and concentrated seawater generated by freezing the deep sea water at low temperature withdrawal supplied from the deep sea to about -10 ° C using the first refrigerator 10. Centrifuge by. At this time, the freshwater from the separated fresh water and concentrated seawater is taken, and the concentrated seawater is cooled to about -15 ° C and sent to the vacuum drying chamber 40 to solidify the concentrated seawater to the process point (-23 ° C) below the secondary freezer (60). Let's do it.

The coagulated concentrated seawater can produce salt by drying it to the optimum water content without destroying the minerals contained in the concentrated seawater ice using the sublimation heat supplied to the shelf of the drying chamber 40, where sublimation and vacuum The evaporated fresh water vapor is recovered in the form of ice in the fresh water condensation chamber 50.

As described above, the present invention can be provided with mineral salts in the fresh water collection and drying room in the secondary freezing and condensation room in the drying room through the first deep freezer and centrifugal concentrator with the deep sea water taken from the deep sea.

In addition, vacuum freeze drying technology to produce mineral salts

(1) the preservation of the physical structure,

(2) chemical stability,

(3) preservation of biological activity,

(4) The product is characterized by excellent resilience and reproducibility of the product.

Therefore, it is possible to contribute to the improvement of the health of the people by inputting less energy and manufacturing high mineral salt and fresh water by using deep ocean water of high clean, low temperature and high mineral which was not utilized in Korea.

As described above, the present invention uses fresh seawater to produce fresh water and mineral salts, but it is also possible to use general seawater instead of deep seawater as a material.

As described above, according to the present invention, the mineral salt separated and produced from deep sea water is kept intact without destroying inorganic nutrients, essential minerals, and various trace elements, such as body fluids, sweat, urine, etc. It promotes metabolism of decomposition products, promotes protein metabolism by involvement of trace metals as coenzyme, and rejuvenates skin, and is effective in atopic and skin diseases. {'Wonderful mineral power, deep sea water', published by Korea Maritime Research Institute (ISBN89) -444-1216-2)}

In addition, the deep sea water is a very useful invention that has the advantage that the year-to-year temperature is about 2 ~ 3 ℃ or less, the possibility of using as low-temperature energy very high.

1 is a chart showing the characteristics of deep ocean water,

2 is a saturated steam pressure diagram of water and ice,

3 is a saturated steam pressure comparison chart of water and ice,

4 is an exemplary view showing a schematic overall configuration of the present invention;

5 is an exemplary view showing a configuration of a heat exchanger for collecting steam in a freshwater condensation chamber to which the present invention is applied;

6 is a cross-sectional view showing an internal configuration of a fresh water condensation chamber to which the present invention is applied;

<Explanation of symbols for the main parts of the drawings>

10: primary freezer 20: centrifugal concentrator

30: seawater heat exchanger 40: vacuum drying chamber

45: boiler 50: fresh water condensation chamber

55: heat exchanger 60: secondary refrigerator

70: brine fruit 72: heater

80: vacuum pump

Claims (8)

(delete) In separating and producing fresh water and salt from sea water, Centrifuging some freshwater ice and concentrated seawater produced by freezing the seawater collected from the sea to about -10 ° C using a primary freezer, Taking the fresh water ice separated in the step, cooling the concentrated seawater to about -15 ℃ again to send it to the vacuum drying chamber, Solidifying to a second freezer up to the process point of the concentrated seawater (-23 ℃), Using the sublimation heat supplied to the drying chamber to produce salt by drying until reaching the optimum moisture content without destroying the minerals contained in the concentrated seawater ice, The sublimation and vacuum evaporated fresh water vapor in the step consists of recovering in the form of ice in the fresh water condensation chamber, Requirements for freeze drying, (1) Concentrated seawater should be frozen as a solid below the process point; (2) The condensed surface should be able to maintain below -40 ℃, (3) The absolute pressure of the system should be maintained at a vacuum degree of 1 ～ 6 Torr,       (4) Fresh water and salt production method using a centrifugal concentrator and vacuum freeze dryer, characterized in that the heat source applied to the concentrated seawater and ice ice is -60 ℃ ~ +50 ℃. (delete) In separating and producing fresh water and salt from sea water, Primary freezer (10) for freezing seawater to about -10 ° C, centrifugal concentrator (20) for centrifugation of the deep sea water frozen by the first freezer to separate freshwater ice and concentrated seawater to recover fresh water It consists of a plate-type triple heat exchanger in which the fluid is circulated, and the seawater heat exchanger 30 which cools the concentrated seawater separated from fresh water to about -15 ° C, and the secondary sea which solidifies the concentrated seawater below the process point (-23 ° C). Sublimation of the vacuum drying chamber 40 and the vacuum drying chamber 40 which use the sublimation heat of the refrigerator 60 and the boiler 45 to dry until the optimum water content is reached without destroying the minerals contained in the concentrated seawater ice. And a fresh water condensation chamber 50 for recovering the vacuum evaporated fresh water vapor in the form of ice, and a heater to automatically separate the ice water fresh water flowing into the fresh water condensing chamber 50 and collected in the heat exchanger 55. 72) Fresh water and salt production using a centrifugal concentrator and a vacuum freeze dryer comprising a line fruit 70, a vacuum pump 80 for forming a vacuum pressure in the vacuum drying chamber 40 and the fresh water condensation chamber 50. Device. The fresh water and salt production apparatus using the centrifugal concentrator and vacuum freeze dryer of claim 4, wherein the fluid comprises refrigerant, brine fruit, and concentrated seawater of the primary refrigerator. 5. The centrifugal concentrator and the vacuum freeze dryer of claim 4, wherein the steam trapping condensation heat exchanger 55 installed in the freshwater condensation chamber 50 is constituted by a plate-type triple heat exchanger through which three types of fluids are circulated. Fresh water and salt production equipment. The fresh water and salt using a centrifugal concentrator and a vacuum freeze dryer according to claim 6, wherein the fluid is composed of brine fruit (70), a refrigerant in the secondary refrigerator (60), and water vapor sublimed and dried from a drying chamber. Production equipment. The condensation heat exchanger (55) has a cooling function for cooling the brine fruit (70) when the concentrated seawater of the vacuum drying chamber (40) is cooled to a process point or less, and water vapor introduced from the vacuum drying chamber (40). Cooling the temperature of the condensation heat exchanger (55) to about -60 ℃ at the time of collection to induce water vapor to the condenser by using the difference in the saturated vapor pressure between the vacuum drying chamber 40 and the condensation chamber 50, and brine fruit (70 Fresh water and salt production apparatus using a centrifugal concentrator and vacuum freeze dryer, characterized in that it has a function to separate the fresh water in the form of ice solidified on the surface of the condensation heat exchanger (55) on the surface of the heat exchanger (55).