KR101811394B1 - Seawater desalination equipment - Google Patents

Abstract

The present invention is characterized in that the hollow portion is formed by a cylindrical housing having an upper surface and a bottom surface and the seawater supplied from the outside to the inside is received at a predetermined height and the upper surface is depressed in the shape of an arc A partition plate disposed in the transverse direction inside the body to divide the hollow portion into an upper evaporation chamber and a lower heat exchange chamber and an inlet hole communicating with the heat exchange chamber and the evaporation chamber on the inner side; A heating means disposed at an upper portion of the plate for heating the evaporated seawater to evaporate the evaporated seawater through the inlet hole; and a hopper-shaped collecting hole provided at an upper end disposed in the evaporation chamber through the partition plate, And a lower end portion thereof includes a discharge pipe connected to the outside from the lower portion of the body so as to discharge the seawater introduced into the evaporation chamber Is condensed by the heating means to generate water vapor. The condensed water liquefied at the hot water vapor and the condensation surface flows into the discharge pipe through the collecting port, moves through the heat exchange unit, gradually transfers the heat of the water vapor to the sea water, And the low-temperature condensed water is drained to the seawater desalination apparatus.

Description

[0001] SEAWATER DESALINATION EQUIPMENT [0002]

The present invention relates to a desalination apparatus for recovering heat energy in a process of condensing water vapor generated by being divided into an evaporation chamber and a heat exchange chamber inside a body to heat seawater and thereby to obtain a large amount of fresh water with a small energy The present invention relates to a seawater desalination apparatus.

In general, seawater desalination is a series of water treatment processes for removing drinking water containing salinity from seawater, which is difficult to use directly as domestic water or industrial water, to obtain drinking water, domestic water and industrial water.

The facilities used to produce fresh water using seawater or purify polluted water are called seawater desalination devices or water treatment devices.

There is a reverse osmosis method in which fresh water is produced by passing seawater through a semi-permeable membrane using reverse Osmosis as a method of desalinating seawater, evaporation method in which seawater is heated by using heat energy, and steam is condensed to obtain fresh water, Multistage evaporation method and multiple utility method are used depending on the flow pattern of fluid.

Generally, the process of separating fresh water from seawater is classified into thermal energy, mechanical / electrical energy, and renewable energy system depending on the energy source, and evaporation / distillation method, reverse osmosis method, have. The dual solar water-based desalination method is divided into a multi-stage utility system using multiple evaporators to increase the fresh water yield and a single utility with one evaporator using thermal energy.

This multi-stage system is divided into Multi-Stage Flash Distillation (MSF) and Multi-Effect Evaporation (MED). This approach has been applied to large systems that use high temperature stems or produce large volumes of fresh water.

On the other hand, a desalination system using existing solar heat source is provided with evaporator with hot water having a temperature of 60 ° C to 80 ° C, which is absorbed from solar heat, to produce fresh water from seawater. It consists of an evaporator to vaporize seawater, a condenser to liquefy vaporized water vapor, an ejector to make the condenser and evaporator space vacuum, a solar collector, and a solar thermal storage tank.

According to the principle, water having a temperature as low as about 45 ° C is heated while circulating inside a heat storage tank for storing a heat source such as a solar heat, and hot water of about 60 ° C is generated. This hot water flows into the evaporator tube inside the evaporator to heat and evaporate seawater outside the evaporator tube, and the evaporated water vapor is liquefied on the outer surface of the condenser. The seawater flows into the condensation tube of the condenser, and the temperature is increased while condensing the water vapor outside the tube, and it flows into the evaporator. The incoming seawater is heated by the hot water inside the evaporator tube to emit steam, and the remaining seawater is discharged by the ejector. At this time, the hot water inside the evaporation pipe is again lowered in temperature and circulated to the heat storage tank.

This solar energy system has become an important technology for securing alternative water resources because of low energy, environment friendly, small device scale and initial investment cost, and it has the advantage of being distributed in book area or several small areas.

However, the problem of the solar water desalination technology is that the amount of fresh water produced due to the uneven solar radiation of the sun is irregular, and when the solar radiation is small, the production amount is greatly reduced due to the lack of heat.

Here, the evaporation method is applied to the phenomenon of natural circulation of water occurring on the earth, that is, water vapor evaporated from the sea surface is condensed in a low-temperature atmosphere of the upper troposphere and then falls into the form of rain in the form of rain or sea surface. It is a public law.

At this time, the principle of the evaporation method is that when the sea water is evaporated, the solvent water is evaporated, and the salt, which is a solute, remains in the sea water to separate the fresh water from the sea water. As described above, the evaporation method is divided into a multi-stage flash method, a multi effect method, a multi-effect method, and a vapor compression method according to an evaporation method and a vapor recycling method.

In addition, the reverse osmosis (RO) is a process for obtaining high-purity fresh water by removing a solute dissolved in seawater by using a semi-permeable membrane and osmotic pressure, and currently, It is the most commonly applied desalination technology with MSF and MED in the facility.

In the reverse osmosis method, when the same amount of the low-concentration solution and the high-concentration solution are put between the semi-permeable membranes, the amount of the high-concentration solution gradually increases with time, and after a certain time, The amount of the high concentration solution does not increase and the equilibrium state is reached. This is called Osmosis, and the head difference between a high concentration solution and a low concentration solution in an equilibrium state is called an osmotic pressure. When a pressure higher than the osmotic pressure is applied to the high concentration solution side in the equilibrium state, the water as the solvent of the high concentration solution moves through the membrane to the low concentration solution, and the solute does not pass through the membrane, which is called reverse osmosis. Thus, a semi-permeable membrane is used to separate the water as a solvent from the solute in pressurized brine.

However, the evaporation method requires a separate heat source in order to heat the seawater. In the reverse osmosis method, the cost of the reverse osmosis membrane for receiving the compression work required for pressurization is high and the maintenance / repair cost is high. It is used in a large-scale desalination plant, which leads to a problem that can not be used in a country such as a reservoir or a developing country that needs a small desalination plant

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to minimize the energy consumption by controlling the process of producing and producing fresh water with low energy, And to provide a seawater desalination apparatus.

Further, the present invention provides a seawater desalination apparatus capable of easily constructing drinking water and fresh water by recovering heat discharged through high-temperature water vapor and condensation water by constructing a small-scale multi-utility desalination plant .

In order to attain the above object, the present invention provides an air conditioner comprising: a hollow portion formed of a cylindrical housing having an upper surface and a bottom surface, the hollow portion being accommodated at a predetermined height from the outside; And a hollow portion disposed in the transverse direction inside the body to divide the hollow portion into an upper evaporation chamber and a lower heat exchange chamber, and an inflow opening communicating with the heat exchange chamber and the evaporation chamber on the inner side, A heating means disposed on the upper portion of the partition plate for heating the sea water raised through the inflow hole to evaporate the seawater; and a heater disposed at an upper end portion of the partition plate, the hopper- A lower portion disposed in the heat exchange chamber is provided with a heat exchanging portion bent in a helical shape and a lower end portion is provided with a discharge pipe connected to the outside from the lower portion of the body The seawater introduced into the evaporation chamber is evaporated by the heating means to generate steam, and the condensed water condensed at the high temperature steam and the condensation surface flows into the discharge tube through the collection port to move through the heat exchange portion, And a fresh water storage tank for storing condensed water discharged through a discharge pipe to the outside of the body, and a collection port provided at an upper end of the discharge pipe is condensed, A first discharge pipe arranged so as to face the bottom surface of the surface and a second discharge pipe arranged with the collecting port oriented toward the water surface of the seawater and the ends of the first discharge pipe and the second discharge pipe are respectively connected to the fresh water storage tank And a bypass pipe branched from the end of the second discharge pipe and flowing into the fresh water storage tank. The low-temperature air contained in the fresh water storage tank is introduced into the bypass pipe, And a blower for blowing the high-temperature condensed water to the fresh water storage tank through the first discharge pipe, the operation of the heating means is stopped, and the evaporator chamber The fresh water is forced to circulate in the fresh water storage tank to induce the water vapor to condense while passing through the heat exchange unit of the first discharge pipe, thereby discharging low temperature fresh water to the fresh water storage tank.

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On the other hand, it is preferable that the partition plate is arranged in a diagonal direction inclined by the heating means introduced from the side of the body, so that the seawater surface boiling up by the heating means is less flowed.

In addition, it is also possible to provide a water supply system that includes a replenishing water storage tank for introducing seawater stored in the lower portion of the body, a drive pump for pumping seawater to store the seawater in the replenishing water storage tank, a supply pipe for connecting the replenishing water storage tank and the body, A replenishing water storage tank level sensing unit for sensing the level of the replenishing water storage tank and turning on / off the driving pump, And an evaporation water level sensing unit for opening the valve so as to sense and maintain the level of the seawater flowing into the inside of the body.

According to the present invention, the heat energy is recovered in the process of condensing water vapor generated by being divided into the evaporation chamber and the heat exchange chamber inside the body, and is transferred to the seawater contained in the body, so that even if a small amount of energy is supplied to the heating means, It is possible to minimize the energy consumption by controlling the process of producing and producing fresh water with low energy by being able to raise the temperature to the target temperature and to provide a seawater desalination device capable of simplifying the structure and reducing the initial installation cost .

In addition, the present invention can efficiently recover heat discharged through high-temperature water vapor and condensation water, and can also use the heating means and the blower according to the temperature of seawater stored in the heat exchange chamber to produce fresh water with less energy It is possible to minimize the energy consumption by controlling the production process.

1 is a schematic view showing an embodiment of a seawater desalination apparatus according to the present invention;
2 is a schematic view of a body according to the present invention;
Figure 3 is a schematic view of the upper part of the body according to the invention;
4 is a state diagram showing the movement of water vapor and condensation water according to the present invention
5 is a state diagram showing that air is circulated by the blower according to the present invention
Figure 6 is a schematic view of the water supply of the body according to the invention;

The present invention has the following features to attain the above object.

The present invention is characterized in that a hollow portion 11 formed of a cylindrical housing having an upper surface and a bottom surface and containing seawater supplied from the outside at a predetermined height is provided on the inside thereof, And a hollow part 11 disposed in the transverse direction inside the body and having an upper evaporation chamber 111 and a lower heat exchange chamber 112, A partition plate 20 having an inlet hole 21 for communicating the heat exchange chamber and the evaporation chamber in the inside thereof, and a heating means (not shown) disposed above the partition plate for heating and evaporating the seawater raised through the inlet hole A hopper-shaped collecting hole 41 is provided at an upper end portion of the evaporation chamber, and a lower portion of the heat exchange chamber is provided with a spiral-shaped heat exchange portion 42 And a lower end portion of which is connected to an outlet pipe The seawater introduced into the evaporation chamber 111 is evaporated by the heating means 30 to generate water vapor and the condensed water collected in the condensation surface 12 is condensed in the condensation water collection port 41 Flows through the heat exchanger (42) through the discharge pipe (40), gradually conveys the heat of the steam to seawater, and liquefies and discharges low temperature condensate to the outside.

A fresh water storage tank (50) for storing condensed water discharged through a discharge pipe (40) is provided on the outside of the body (10), and a collection port provided at the upper end of the discharge pipe (40) The first discharge pipe 40a and the second discharge pipe 40b are arranged such that the collecting port faces the water surface of the seawater and the first discharge pipe 40a and the second discharge pipe 40b, To the fresh water storage tank (50).

In addition, there is provided a right wharf passage (51) branched at the end of the second discharge pipe (40b) and flowing into the fresh water storage tank (50), and the bypass pipe The heating unit 30 is provided with a blower 52 for spraying high temperature sea water through a collection port of the discharge pipe 40b. When high temperature condensation water flows into the fresh water storage tank through the first discharge pipe 40a, The air in the evaporator and the fresh water storage tank is forcibly circulated by driving the blower 52 to induce condensation of water vapor through the heat exchanger 42 of the first discharge pipe 40a, 50).

On the other hand, it is preferable that the partition plate 20 is arranged in a diagonal direction inclined by the heating means 30 introduced from the side of the body, so that the seawater surface boiling up by the heating means is less flowed.

A pump 60 for pumping the seawater to store the seawater in the replenishing water storage tank, a supply pipe 61 for connecting the replenishing water storage tank to the body, A valve for shielding the supply pipe and preventing the seawater from flowing backward, and a water level sensing means 70 provided respectively in the replenishing water storage tank and the body, wherein the water level sensing means 70 is provided in the replenishing water storage tank A replenishing water storage level detecting portion 71 for detecting a water level and driving the pump on / off, and an evaporation water level detecting portion 72 for opening the valve to detect and maintain the level of the seawater introduced into the inside of the body .

The present invention having such characteristics can be more clearly described by the preferred embodiments thereof.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to the description, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and the configurations shown in the embodiments and drawings described herein are only the most preferred embodiments of the present invention And it is not intended to represent all of the technical ideas of the present invention, so that there can be various equivalents and modifications that can be substituted at the time of the present application.

FIG. 1 is a schematic view showing an embodiment of a seawater desalination apparatus according to the present invention, FIG. 2 is a schematic view showing a body according to the present invention, FIG. 3 is a schematic view showing an upper part of a body according to the present invention, FIG. 5 is a state diagram showing the circulation of air by the blower according to the present invention, and FIG. 6 is a schematic diagram showing the water supply of the body according to the present invention.

As shown in FIG. 1, the present invention includes a body 10, which is formed of a substantially cylindrical housing and receives seawater supplied from the outside at a predetermined height, and a partition plate (not shown) A heating means 30 disposed at an upper portion of the partition plate for heating and raising seawater raised through the inflow hole, and a discharge pipe 40 for discharging hot water vapor and liquefied condensate water to the outside .

As shown in FIGS. 2 and 3, the body 10 is formed as a hollow cylindrical body having an upper surface and a bottom surface, and a hollow portion 11 in which seawater supplied from the outside is received at a predetermined height is formed inside And the upper surface is provided with a condensation surface 12 recessed in the shape of an arc protruding downward in cross section.

The hollow portion 11 is formed inside the cylindrical body, and seawater supplied from the outside is received at a predetermined height.

The upper surface of the condensation surface 12 is recessed in the shape of an arc protruding downward so that evaporated water vapor condenses on the bottom surface.

1, the partition plate 20 is horizontally disposed inside the body to divide the hollow portion 11 into an upper evaporation chamber 111 and a lower heat exchange chamber 112 And an inflow hole (21) for communicating the heat exchange chamber and the evaporation chamber is formed inside.

That is, the hollow portion 11 is divided into the upper evaporation chamber 111 and the lower heat exchange chamber 112 by the partition plate 20. [

The inflow hole 21 is preferably formed as a plurality of slots arranged radially inside the partition plate 20. [

The heating means (30) is disposed on the upper part of the partition plate (20) to heat and evaporate the seawater raised through the inflow hole.

The heating means (30) does not need to heat the seawater until it reaches the boiling point. Further, the heating means 30 according to the present invention may include a heating means using a resistance device which is heated by a resistance generated when a current passes, and a heat transfer means such as a heat pipe in which a heating medium is pressure-sealed in a sealed container .

The heat pipe may have any one of an 'I' shape, a 'U' shape, and a loop shape according to an embodiment. A plurality of heat dissipation protrusions may be formed on the outer circumferential surface or the outer circumferential surface to increase a heat generating area. Shaped heat pipes can be integrally used by using one or more heat pipes.

Accordingly, the heat generated by the external heat generating means is transmitted to the inside of the body through the heat pipe, and the seawater introduced into the body is heated to generate steam.

The heating means 30 is provided on the upper portion of the partition plate 20 so that seawater introduced into the body 10 flows into the lower portion of the evaporation chamber 111 through the inflow hole 21 And generates steam by contacting the heating means.

2 and 4, the discharge pipe 40 is installed through the partition plate 20, and a hopper-shaped collecting hole 41 is formed in the upper end portion of the evaporation chamber 111 A lower portion disposed in the heat exchange chamber 112 is provided with a spirally bent heat exchange portion 42 and a lower end portion is connected to the outside from the lower portion of the body.

According to the present invention, the seawater introduced into the evaporation chamber 111 is evaporated by the heating means 30 to generate steam, and the condensed water 41 collected at the condensation surface 12 and the high- And flows through the heat exchanging part 42 to gradually transfer the heat of steam having a high temperature to the seawater contained in the heat exchange chamber 112 to be liquefied and drain the low temperature condensation water to the outside will be.

At this time, the temperature of the seawater accommodated in the body 10 is the highest in the evaporation chamber 111 heated by the heating means 30 and the temperature of the heat exchange chamber 112 is higher than the temperature of the high- And the lower part of the lower part where the water vapor and the condensed water move at the lowest temperature becomes the lowest, and the convection phenomenon does not occur in the heat exchange chamber 112.

In this way, heat energy is recovered in the process of condensing the steam generated in the evaporation chamber (111) and the heat exchange chamber (112) inside the body and transferred to the seawater contained in the body, The temperature of the seawater flowing into the evaporation chamber 111 can be increased to a target temperature.

4, a fresh water storage tank 50 for receiving the condensed water discharged through the discharge pipe 40 is provided outside the body 10, and the discharge pipe 40 is provided at the upper end A first discharge pipe 40a having a collecting port oriented toward the bottom surface of the condensation surface and a second discharge pipe 40b having a collecting port oriented toward the water surface of the seawater, And the end of the second discharge pipe 40b are connected to the fresh water storage tank 50, respectively.

That is, the fresh water storage tank 50 is disposed outside the body 10 and receives the condensed water discharged through the discharge pipe 40.

At this time, the discharge pipe (40) has a first discharge pipe (40a) arranged at the upper end toward the bottom of the condensation surface, a second discharge pipe (40b) arranged with the collection pipe facing the water surface of the seawater, And the ends of the first discharge pipe 40a and the second discharge pipe 40b are connected to the fresh water storage tank 50, respectively.

That is, the high-temperature condensed water condensed on the condensation surface through the first discharge pipe 40a flows into a collection port directed to the bottom surface of the condensation surface, passes through the heat exchange unit and transfers the heat to the sea water, And the condensed water of the fresh water is discharged to the fresh water storage tank.

In addition, the high-temperature water vapor evaporated by the heating means 30 flows through the second discharge pipe 40b to the collection port arranged toward the water surface, and the heat is transferred to the sea water while passing through the heat exchange unit, So that the low-temperature condensed water is discharged to the fresh water storage tank.

Therefore, the first discharge pipe 40a receives the high-temperature condensed water, the second discharge pipe 40b receives the high-temperature steam individually, transfers the heat to the sea water while passing through the heat exchange unit 42, So that the low-temperature condensed water is discharged to the fresh water storage tank 50.

The first discharge pipe 40a and the second discharge pipe 40b having different heat transfer rates may be selectively opened and closed to maintain the temperature of the seawater contained in the heat exchange chamber 112 at an appropriate level .

5, there is provided a right wharf passage 51 branched from the end of the second discharge pipe 40b and flowing into the fresh water storage tank 50, and the bypass pipe is connected to the fresh water storage tank 50 And a blower 52 for sucking the received low-temperature air through the collection pipe of the second discharge pipe 40b and spraying the hot air to the hot sea surface. The high-temperature condensation water is introduced into the fresh water storage tank through the first discharge pipe 40a The operation of the heating means 30 is stopped and the air in the evaporation chamber and the fresh water storage tank is forcibly circulated by driving the blower 52 to induce the water vapor to condense through the heat exchange portion 42 of the first discharge pipe 40a So that low-temperature fresh water is discharged to the fresh water storage tank 50. [

The upper end of the first discharge pipe 40a and the upper end of the second discharge pipe 40b are connected to the upper end of the fresh water storage tank 50. The upper end of the first discharge pipe 40a is connected to the upper end of the second discharge pipe 40b, The ends of the first bypass passage 40b and the ends of the right bypass passage 50 are connected to each other.

In addition, the right wharf 51 is provided with a blower 52 for sucking the low-temperature air contained in the short-term storage tank 50 and injecting the low-temperature air through a collection port of the second discharge pipe 40b to the hot sea surface.

Accordingly, since a large amount of heat is transferred from the heat exchanging part 42 of the first discharge pipe and the second discharge pipe to the heat exchange chamber 112, the high-temperature condensate water is discharged from the end of the first discharge pipe and the second discharge pipe to the fresh water storage tank 50 The operation of the heating means 30 is stopped and the blower 52 is driven to introduce the cold air stored in the fresh water storage tank 50 into the second discharge pipe 40b, 2 through the heat exchanging part of the discharge pipe 40b, the residual heat is gradually absorbed and heated and then flows into the evaporation chamber 111 through the collection port.

In addition, the air introduced into the evaporation chamber in the collection port of the second discharge pipe is led to the collection port of the first discharge pipe together with the hot water vapor of the evaporation chamber, and the water vapor passes through the heat exchange portion 42 of the first discharge pipe 40a And the low-temperature fresh water is discharged to the fresh water storage tank 50. [

Therefore, not only is it possible to recover heat discharged through high-temperature water vapor and condensation water, but also to produce and produce fresh water with low energy by driving the heating means and the blower according to the temperature of seawater stored in the heat exchange chamber So that the energy consumption can be minimized.

In addition, the second discharge pipe includes a connection pipe directly connected to the fresh water storage tank 50, and a bypass pipe connected to the fresh water storage tank through a blower, wherein a valve for opening and closing the connection pipe is additionally provided, It is preferable that the cold air blown even when the blower 52 is driven is not introduced into the fresh water storage tank through the connection pipe.

1 to 3, the partition plate 20 is disposed in a diagonal direction inclined by the heating means 30 introduced from the side of the body, so that the sea surface boiling up by the heating means flows Less is desirable.

That is, the heating means 30 may be installed in the radially inward direction from the side of the body, but if the single heating means is provided, the seawater introduced into the evaporation chamber may flow in one direction The heated seawater of the heat exchange chamber flows directly into the evaporation chamber due to the convection phenomenon while being heated by the disposed heating means, resulting in a decrease in efficiency.

6, a replenishing water storage tank 60 for introducing the seawater stored in the lower portion of the body 10, a driving pump 61 for pumping seawater to store the replenishing water in the replenishing water storage tank, A supply pipe 62 connecting the storage tank and the body, a valve for shielding the supply pipe and preventing the seawater from flowing backward, and a water level sensing means 70 provided in the water replenishment water storage tank and the body, respectively, A replenishing water storage tank level detecting unit 71 for detecting the level of the replenishing water storage tank and turning on / off the driving pump, an evaporation error number detecting unit 71 for detecting the level of the seawater flowing into the inside of the body, And the upper sensing unit 72 may be included.

The replenishing water storage tank 60 includes a replenishing water storage tank 60 for receiving seawater stored in the replenishing water storage tank 60 through a supply pipe 62 connected to the lower portion of the body, shielding the supply pipe, It is preferable that a valve is provided at a position higher than the height of the valve body 10.

The water level sensing means 70 senses the water level of the replenishing water storage tank and turns on / off the driving pump 61. The water level sensing means 71 senses the water level of the seawater flowing into the body, And an evaporation water level sensing unit 72 for opening a valve installed in the supply pipe so as to maintain the water level sensing unit 70. The water level sensing unit 70 can be configured through a known floating valve or a pressure sensor.

As described above, the present invention is characterized in that the hollow portion 11 is formed of a cylindrical housing having an upper surface and a bottom surface, and the seawater supplied from the outside to the inside is received at a predetermined height, A body 10 provided with a condensation surface 12 recessed in the shape of a protruding arc and a hollow portion 11 arranged in the transverse direction inside the body so as to be divided into an upper evaporation chamber 111 and a lower heat exchange chamber And a partition plate (20) having an inlet hole (21) for communicating the heat exchange chamber and the evaporation chamber on the inner side. The partition plate (20) is disposed above the partition plate A heating means 30 and a hopper-shaped collection means 41 provided at an upper end disposed in the evaporation chamber through the partition plate, and a lower portion disposed in the heat exchange chamber is provided with a spirally bent heat exchange portion 42, and the lower end portion is connected to the outside from the lower portion of the body The seawater flowing into the evaporation chamber 111 is evaporated by the heating means 30 to generate water vapor and the condensed water collected in the condensation surface 12 41) flows into the discharge pipe (40), moves through the heat exchanging part (42), gradually liquefies the heat of the water vapor to the seawater, and discharges low temperature condensation water to the outside 100, and the present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it should be understood that the present invention is not limited to the above- And will be apparent to those skilled in the art.

100: Seawater desalination device
10: Body 11: Hollow portion
111: Evaporation chamber 112: Heat exchange chamber
12: Condensation surface 20: Partition plate
21: Inflow hole 30: Heating means
40: discharge pipe 40a: first discharge pipe
40b: second discharge pipe 41: collection pipe
42: heat exchanger 50: fresh water storage tank
51: To the center hall 52: Blower
60: replenishment water storage tank 61: drive pump
62: supply pipe

Claims (5)

A hollow portion 11 formed by a cylindrical housing having an upper surface and a bottom surface and receiving seawater supplied from the outside at a predetermined height is provided on the inside and an upper surface is formed in the shape of a circular arc A body 10 provided with a recessed cone surface 12;
An inflow hole 21 which is disposed in the transverse direction inside the body and divides the hollow portion 11 into an upper evaporation chamber 111 and a lower heat exchange chamber 112 and communicates the heat exchange chamber and the evaporation chamber inside A partition plate (20) formed thereon;
A heating means (30) arranged on the partition plate for heating and evaporating the seawater raised through the inflow hole;
A hopper-shaped collecting hole 41 is provided at an upper end portion disposed in the evaporation chamber, and a heat exchange portion 42 is disposed at a lower portion disposed in the heat exchange chamber and is bent in a spiral shape. The end portion includes a discharge pipe (40) connected to the outside from the lower portion of the body; including,
The seawater flowing into the evaporation chamber 111 is evaporated by the heating means 30 to generate water vapor and the condensed water condensed at the condensation surface 12 is discharged to the discharge pipe 40 through the collection hole 41 Flows through the heat exchanging part 42, gradually liquefies while transferring the heat of the steam to seawater, drains low-temperature condensation water to the outside,
A fresh water storage tank 50 for containing condensed water discharged through a discharge pipe 40 is provided on the outside of the body 10 and the collection pipe provided at the upper end of the discharge pipe 40 is oriented toward the bottom surface of the condensation surface The first discharge pipe 40a and the second discharge pipe 40b are arranged such that the collecting port faces the water surface of the seawater and the end of the first discharge pipe 40a and the end of the second discharge pipe 40b Respectively, to the fresh water storage tank 50,
The second bypass pipe 40b is branched from the end of the second discharge pipe 40b and flows into the fresh water storage tank 50. The bypass pipe 51 sucks the low temperature air contained in the fresh water storage tank 50, And a blower 52 for spraying the high-temperature sea-level water through a collection port of the air-
When the high temperature condensation water flows into the fresh water storage tank through the first discharge pipe 40a, the operation of the heating means 30 is stopped and the air in the evaporation chamber and the fresh water storage tank is forcibly circulated by driving the blower 52, Wherein the low-temperature fresh water is discharged to the fresh water storage tank (50) by inducing the first discharge pipe (40a) to condense while passing through the heat exchange unit (42).
delete delete 2. The apparatus according to claim 1, wherein the partition plate (20) is disposed in a diagonal direction inclined by the heating means (30) introduced from the side of the body, so that the seawater surface boiled up by the heating means Fresh water system.
2. The apparatus according to claim 1, further comprising: a replenishing water storage tank (60) for introducing seawater stored in a lower portion of the body (10); a drive pump (61) for pumping seawater to store the seawater in a replenishing water storage tank; A valve for blocking the reverse flow of the seawater by shielding the supply pipe, and a water level sensing means 70 provided respectively in the supplementary water storage tank and the body,
A replenishing water storage tank level detecting unit 71 for detecting the level of the replenishing water storage tank and turning on / off the driving pump, a valve for detecting the level of the seawater introduced into the inside of the body, And an evaporation mistake detection unit (72) for opening the seawater desalination system.

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