KR20230137943A - Evaporative salt water desalination device using solar energy - Google Patents

Abstract

A salt water desalination device according to an embodiment of the present invention is a salt water desalination device including a plurality of evaporation units arranged to face each other and spaced apart from each other, wherein the plurality of evaporation units are disposed at the outermost part where solar heat is irradiated, and the salt water desalination device A front evaporation unit including a front deep layer that evaporates as it flows; A first evaporation unit facing the front core layer and including a first waterproof layer in which water vapor evaporated from the front core layer is condensed into fresh water; a first spacer disposed between the front core layer and the first waterproof layer; and a heat insulating layer disposed between the front core layer and the first spacer.

Description

Evaporative salt water desalination device using solar energy

The present invention relates to an evaporative salt water desalination device using solar energy, and more specifically, to a salt water desalination device that has high efficiency, simplifies the structure of the device, and reduces the manufacturing cost of the device.

Recently, as securing stable water resources has emerged as a global issue due to global water shortage, interest in developing alternative water resources is increasing. Accordingly, countries around the world are developing technologies including saltwater desalination technology, gray water construction, rainwater utilization technology, and artificial rainfall technology. We are sparing no effort in investing heavily in research and development of alternative water resource technologies. Among them, salt water desalination technology is the production of fresh water from salt water. More specifically, it is a technology that removes dissolved substances, including salt, from sea water that is difficult to use directly as household water or drinking water, thereby obtaining high purity drinking water, domestic water, industrial water, etc. It refers to a series of water treatment processes.

Saltwater desalination technology can be seen as one of the biggest challenges facing humanity, not only to secure drinking water/fresh water in developing countries, islands, remote areas, etc., but also to secure water resources around the world.

Conventionally, large-capacity desalination facilities such as evaporation and membrane filtration have been used as saltwater desalination technologies.

A representative method of desalinating salt water is the evaporation method, which involves heating sea water containing salt and condensing the steam generated to extract fresh water.

In general, saltwater desalination devices require energy to be supplied artificially, and have complex structures and high technical standards, making them difficult to manufacture and install, and expensive to operate. In addition, the freshwater produced by desalinating saltwater There are problems such as salt not being completely removed.

In addition, in the case of conventional salt water desalination devices using evaporation and membrane filtration, the technology to desalinate large amounts of salt water is applied, so there is a problem of excessive initial construction and maintenance costs, and it is used for small-scale desalination devices that require small capacity, such as in islands, etc. There were problems that made it difficult to apply desalination devices.

In addition, because the existing desalination method uses fossil energy as an energy source, problems of high costs and environmental pollution due to high oil prices occur, and the use of alternative eco-friendly energy is required. However, to date, there is no need to build a medium- or small-scale saltwater desalination system. There has not been much research on the configuration of the necessary salt water desalination device.

One aspect of the present invention is to provide a salt water desalination device that can reduce manufacturing costs and prevent parts from being damaged by solar heat.

A salt water desalination device including a plurality of evaporation units arranged to face each other and spaced apart according to an embodiment of the present invention, wherein the plurality of evaporation units are disposed at the outermost part where solar heat is irradiated, and the front where salt water flows and evaporates. a forward evaporation unit comprising a deep stratum; A first evaporation unit facing the front core layer and including a first waterproof layer in which water vapor evaporated from the front core layer is condensed into fresh water; a first spacer disposed between the front core layer and the first waterproof layer; and a heat insulating layer disposed between the front core layer and the first spacer.

The front evaporation unit may further include a heat-absorbing layer that receives sunlight and absorbs solar heat, and a heat-conducting layer disposed between the heat-absorbing layer and the front core layer.

The first spacer may have a net shape.

The first evaporation unit may include a first collection pocket that collects fresh water flowing in the first waterproofing layer.

The first evaporation unit may further include a first core layer disposed behind the first waterproofing layer.

a second evaporation unit facing the first core layer and including a second waterproof layer in which water vapor evaporated from the first core layer is condensed into fresh water; And it may further include a second spacer disposed between the first evaporation unit and the second evaporation unit.

It further includes a salt water supply unit that supplies salt water to the front core layer and the first core layer and includes a salt water tank storing salt water, wherein the salt water supply unit includes a front supply core connecting the salt water tank and the front core layer, and It may include a first supply wick connecting the brine tank and the first wick layer.

The cross-sectional area of the front supply wick may be larger than that of the first supply wick so that a greater amount of salt water is supplied through the front supply wick than the first supply wick.

The salt water supply unit may further include a separation layer disposed between the front supply wick and the first supply wick, and the front supply wick, the first supply wick, and the separation layer may be stacked on each other.

It may further include a housing for accommodating the plurality of evaporation units, wherein the housing may be provided with a fresh water outlet through which fresh water condensed in the first evaporation unit is discharged and a salt water outlet through which salt water flowing down from the front evaporation unit is discharged. there is.

The outer surface of the housing may be provided with a water pan arranged at an angle to collect and flow water flowing along the outer surface of the housing.

According to one embodiment of the present invention, manufacturing costs can be reduced by reducing the number of parts, and damage to parts by solar heat can be prevented by providing an insulating layer and a heat conduction layer in a portion that directly receives solar heat.

Figure 1 is a diagram for explaining a multi-stage salt water desalination device according to the prior art.
Figure 2 is a diagram showing a salt water desalination device according to an embodiment of the present invention.
Figure 3 is an enlarged view of part III of Figure 2.
Figure 4 is a diagram showing a salt water supply unit in a salt water desalination device according to an embodiment of the present invention.
Figures 5 and 6 are diagrams showing a spacer in a salt water desalination device according to an embodiment of the present invention.
Figure 7 is a diagram showing the housing of a salt water desalination device according to an embodiment of the present invention.

Hereinafter, with reference to the attached drawings, various embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. The invention may be implemented in many different forms and is not limited to the embodiments described herein.

In order to clearly explain the present invention, parts that are not relevant to the description are omitted, and identical or similar components are assigned the same reference numerals throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, combined)" with another part, this means not only "directly connected" but also "indirectly connected" with another member in between. "Includes cases where it is. Additionally, when a part is said to “include” or “have” a certain component, this does not mean that other components are excluded, but that it can further include other components, unless specifically stated to the contrary.

Figure 1 is a diagram for explaining a multi-stage salt water desalination device according to the prior art.

As shown in FIG. 1, the multi-stage salt water desalination device 100 according to the prior art includes at least one evaporation plate in the device, and the evaporation plate is composed of a plate and a wick formed on the rear surface of the plate. As a result, salt water flows down toward the wick formed on the rear side of the plate and salt water evaporates from an energy source such as solar energy toward the front side of the plate and condenses into fresh water, causing the condensed fresh water to flow to the front side of the plate. It has a flowing structure.

For example, in Figure 1, at least four evaporation plates may be provided, and each evaporation plate may be defined as a first to fourth evaporation plate.

Meanwhile, for the sake of understanding, in this specification, 'front' and 'back' are defined as the direction toward the sun and the opposite direction, respectively.

Referring to FIG. 1, the internal configuration of the salt water desalination device 100 according to the prior art includes a first plate 111 on the side that receives evaporation energy from an external energy source and a rear surface of the first plate 111. A first evaporation plate 110 including a first wick 112 through which salt water is wetted and flows down, and a plurality of evaporation plates arranged to face each other and spaced apart from each other at the rear of the first evaporation plate (e.g. , second to fourth evaporation plates, 120, 130, 140) are provided. In the plurality of evaporation plates (110, 120, 130, 140), the salt water vapor evaporated from the wick of the front evaporation plate is evaporated and diffused, and the diffused salt water vapor is evaporated from the wick of the front evaporation plate. It condenses on the front surface and forms into water droplets, which flows down the bottom and is then stored.

That is, among the plurality of evaporation plates for obtaining fresh water by evaporating salt water, the salt water flowing down through the wick is evaporated by solar heat in the first evaporation plate 110, which directly receives solar heat at the outermost area close to the direction in which solar heat is irradiated. , In the subsequent evaporation plates (120, 130, 140), not only the solar heat transferred from the front evaporation plate but also the evaporated salt water vapor at the front is formed on the front surface of the plates (121, 131, 141) of each evaporation plate. The brine flowing through the wick can be evaporated by using the latent heat of condensation released.

At this time, each evaporation plate (110, 120, 130, 140) includes a salt water tank (114, 124, 134, 144) that supplies salt water to the wick provided on the rear surface, and the salt water stored in the salt water tank As it flows into the wick, some of it is evaporated.

In addition, each of the evaporation plates (120, 130, 140) of the next stage, excluding the first evaporation plate, is structured to include fresh water tanks (123, 133, 143) that can store distilled water flowing on the condensation surface. .

For reference, in Figure 1, the distance between each evaporation plate is exaggerated and shown large for convenience of explanation, but in reality, each plate is used to condense the brine evaporated from the front evaporation plate or to use the heat of condensation as a heat source for brine evaporation. The evaporation plates are installed closer together than shown in Figure 1.

However, the salt water desalination device 100 according to the prior art described above must be placed closely between adjacent evaporation plates for an efficient desalination mechanism. In this case, the wick at the front end and the plate at the adjacent rear end are damaged due to structural defects or Alternatively, problems with desalination efficiency may occur due to contact due to unexpected situations such as accidents.

Additionally, as a plurality of evaporation plates are placed closely together, a problem may occur in which components of adjacent rear evaporation plates are damaged by solar heat irradiated to the front end. For example, a polymer film can be coated on the front of the evaporation plate for waterproofing, or a polymer spacer can be installed to maintain a certain gap between two adjacent evaporation plates. The waterproof film or spacer at the rear may be deformed or damaged by solar heat.

The salt water desalination device 300 according to an embodiment of the present invention is configured to solve the above-described conventional problems, and will be described in detail below.

For reference, in order to differentiate the configuration of the salt water desalination device 300 according to an embodiment of the present invention from the conventional salt water desalination device shown in FIG. 1, the names of some components are defined differently.

Figure 2 is a diagram showing a salt water desalination device according to an embodiment of the present invention, and Figure 3 is an enlarged view of part III of Figure 2.

Referring to Figures 1 and 2, the salt water desalination device according to an embodiment of the present invention uses the same principle of desalination of salt water in the conventional salt water desalination device with a multi-stage structure described above, but has a slightly different structure, compared to the prior art. Problems that arise can be resolved.

The salt water desalination device 300 according to an embodiment of the present invention includes a plurality of evaporation units 310 and 320 that are spaced apart from each other and arranged to face each other. For convenience of description, the reference numeral 320 in this specification may refer to one evaporation unit disposed behind the front evaporation unit 310, and may refer to n evaporation units (e.g., first to nth evaporation units ( It may also mean 320-1, 320-2,…, 320-n)). Here, the nth evaporation unit 320-n refers to the nth evaporation unit from the front, excluding the front evaporation unit 310, among the plurality of evaporation units.

The plurality of evaporation units includes a front evaporation unit 310 disposed at the outermost (i.e., front) area where solar heat is irradiated, and a first evaporation unit 320-1 disposed facing the front evaporation unit 310 at a predetermined distance apart. ), the first spacer 314-1 disposed between the front evaporation unit 310 and the first evaporation unit 320-1, and between the front evaporation unit 310 and the first spacer 314-1 It includes an insulating layer 317 that is disposed.

Referring to FIGS. 2 and 3 , the front evaporation unit 310 may have a multi-layer structure and may include a heat absorption layer 311 and a front wick layer 312.

The heat absorption layer 311 is a part where solar heat is irradiated and can absorb solar heat. For example, the heat absorption layer 311 may be made of a black plate to increase the heat absorption rate, but is not limited thereto, and may have the same configuration as the waterproof layer of the first to nth evaporation units to be described later, and the waterproof layer It may be composed of multiple layers of black coating layers laminated on the front surface of the .

The front core layer 312 is disposed behind the heat absorbing layer 311, and is a part where salt water evaporates as it flows. The front core layer 312 may be made of a material that is wetted with salt water and flows down, for example, cloth, fabric, or paper, and receives salt water from the upper part so that the salt water flows down by gravity and capillary action. You can.

According to one embodiment, the front core layer 312 may be configured to be bonded or adhered to the front layer. Additionally, the front core layer 312 may be surface treated to be hydrophilic or may include hydrophilic particles on the surface. Additionally, the front core layer 312 may have a wrinkled surface to expand the surface area where salt water evaporates.

According to one embodiment, a heat conductive layer 315 may be provided between the front core layer 312 and the heat absorbing layer 311. The heat-conducting layer 315 may be made of a material with high thermal conductivity, for example, a metal plate or metal foil, and can uniformly transfer the heat energy absorbed into the heat-absorbing layer 311 by solar heat to the front core layer 312. there is.

In more detail, the heat absorbed through the heat absorbing layer 311 is not uniformly transmitted to the entire area of the front deep layer 312, but is localized in some areas (for example, areas where the brine is evaporated and dried). The heat concentrated locally in some areas may cause thermal deformation of the first spacer 324-1, which will be described later, which is the portion in contact with the rear of the front core layer 312. Accordingly, the heat energy absorbed by the heat-conducting layer 315 into the heat-absorbing layer 311 can be uniformly transferred to the entire area of the front core layer 312.

The first spacer 324-1 is a part disposed between the front evaporation unit 310 and the first evaporation unit 320-1, and the front evaporation unit 310 and the first evaporation unit 320 are arranged to face each other. -1) can be spaced apart from each other. For example, the first spacer 324-1 may be disposed on the front surface of the first evaporation unit 320-1. Accordingly, by maintaining a constant distance between the first waterproofing layer 321-1 of the first evaporation unit 320-1 and the front core layer 312 of the front evaporation unit 310, the front core layer 312 ) can be prevented from mixing with fresh water on the first waterproof layer (321-1).

Meanwhile, in FIG. 2, the front evaporation unit 310 (or heat insulating layer 317) and the first spacer 324-1 are shown to be spaced apart, but this is not limited to this. The front surface may be arranged to abut the rear surface of the front evaporation unit 310 (or the heat insulating layer 317).

According to one embodiment, the first spacer 324-1 may have a net shape and may be made of a polymer material. Accordingly, the first spacer 324-1 separates the front evaporation unit 310 from the first evaporation unit 320-1 and allows the water vapor evaporated in the front evaporation unit 310 to flow into the first evaporation unit 320-1. ) can effectively perform the function of communication. Additionally, since the material constituting the first spacer 324-1 can be saved to a minimum, the manufacturing cost of the salt water desalination device can be reduced. The detailed configuration and manufacturing method of the first spacer 324-1 will be described later.

A heat insulating layer 317 may be disposed between the front evaporation unit 310 and the first spacer 324-1. For example, the heat insulating layer 317 may be disposed between the front core layer 312 of the front evaporation unit 310 and the first spacer 324-1.

The insulation layer 317 is a part to prevent the first spacer 324-1, which is made of a heat-vulnerable material, from being deformed by heat energy from solar heat. The insulation layer 317 may be made of a material that allows water vapor to pass through but has low thermal deformation. For example, it may include paper, cloth, non-woven fabric, cotton, glass wool, etc.

According to one embodiment, as shown in FIGS. 2 and 3, the heat insulating layer 317 may form one layer of a multi-layer structure constituting the front evaporation unit 310. Alternatively, the insulation layer 317 may be made of the same material as the front core layer 312 or may be made integral with the front core layer 312. For example, the front core layer 312 may be thicker than the first to nth core layers (322-1, 322-2,..., 322-n) described later, and the first to nth core layers It may have a thickness that is three times or more than the thickness of (322-1, 322-2,…, 322-n).

Hereinafter, the first evaporation unit 320-1 will be described. Meanwhile, according to an embodiment of the present invention, the first evaporation unit 320-1 is followed by a second evaporation unit 320-2,... , may further include an nth evaporation unit (320-n). However, since the first to nth evaporation units have the same configuration, the description will focus on the first evaporation unit 320-1.

The first evaporation unit 320-1 may include a first waterproof layer 321-1, a first core layer 322-1, and a first collection pocket 323-1. According to one embodiment, the first evaporation unit 320-1 may be made of a multilayer structure in which the first waterproofing layer 321-1 and the first core layer 322-1 are bonded to each other, and the first waterproofing layer 321 A first collection pocket 323-1 may be installed in the lower part of -1).

The first waterproof layer 321-1 may be made of a waterproof material that does not allow water to pass through or get wet, and may be made of, for example, a polymer film. Accordingly, the salt water flowing through the front core layer 312 may evaporate and condense on the first waterproof layer 321-1 and flow down.

A first collection pocket 323-1 may be provided at the lower part of the first waterproofing layer 321-1 to collect fresh water condensed and flowing down from the first waterproofing layer 321-1.

The first core layer 322-1 is disposed on the rear surface of the first evaporation unit 320-1 and may have the same configuration as the front core layer 312 described above.

Meanwhile, a second evaporation unit 320-2 may be arranged behind the first evaporation unit 320-1, and between the first evaporation unit 320-1 and the second evaporation unit 320-2. A second spacer 324-2 may be disposed. Since the second evaporation unit 320-2 has the same configuration as the above-described first evaporation unit 320-1, the second waterproof layer 321-2, the second core layer 322-2, and the second It may include a collection pocket (323-2). Alternatively, the salt water desalination device 300 according to an embodiment of the present invention includes a first evaporation unit 320-1, a second evaporation unit 320-2,... , the nth evaporation units 320 - n are arranged in sequence, and may be composed of n evaporation units 320 of the same structure except for the front evaporation unit 310 . An n-th spacer (324-n) is disposed in front of the n-th evaporation unit (320-n), and the n-th evaporation unit (320-n) includes an n-th waterproofing layer (321-n) and an n-th core layer (322-n). n), and an nth collection pocket 323-n.

Meanwhile, the salt water desalination device 300 according to an embodiment of the present invention may include a salt water supply unit 370 that supplies salt water to the plurality of evaporation units described above.

Figure 4 is a diagram showing a salt water supply unit in a salt water desalination device according to an embodiment of the present invention.

Referring to FIGS. 2 and 4 , the salt water supply unit 370 may include a salt water tank 375 storing salt water and a supply wick 371.

The supply wick 371 connects the brine tank 375 and the front wick layer 312 of the front evaporation unit 310, and can supply brine to the front wick layer 312 (hereinafter referred to as the front supply wick). . In addition, the supply wick 371 connects the salt water tank 375 and the first wick layer 322-1 of the first evaporation unit 320-1, and supplies salt water to the first wick layer 322-1. (hereinafter referred to as the first supply wick). In addition, the supply wick 371 may connect the brine tank 375 and the second wick layer 322-2 of the second evaporation unit 320-2 (hereinafter referred to as the second supply wick), and the supply wick 371 may connect the brine tank 375 and the nth wick layer 322-n of the nth evaporation unit 320-n (hereinafter referred to as the nth supply wick).

The supply wick 371 may be formed by stacking the aforementioned front supply wick and the first to nth supply wicks with each other with a separation layer interposed between them. For example, the supply wick 371 has a separation layer between each wick made of paper or fabric (e.g., the front supply wick, first to nth supply wicks) made of a material that does not transmit water. It may have a mutually laminated structure with an intervening layer.

At this time, a separation layer may not exist at the upper end where the salt water is supplied so that the salt water can be smoothly supplied to the supply wick 371. That is, since the individual wicks at the upper end of the supply wick 371 are in contact with each other, salt water can be delivered to the entire supply wick 371 at the same density.

According to one embodiment, the cross-sectional area of the front supply wick may be larger than the cross-sectional area of the first supply wick. Alternatively, the thickness (D1) of the front supply wick may be greater than the thickness (D2) of the first supply wick. Accordingly, a larger amount of salt water can be supplied through the front supply wick than through the first supply wick. More specifically, the closer to the front where solar energy is irradiated, the more actively evaporation occurs, so the closer to the front, the more salt water needs to be supplied. In addition, if the second to nth evaporation units are sequentially arranged behind the first evaporation unit 320-1, the cross-sectional area or thickness of the supply wick may sequentially decrease from the first supply wick to the nth supply wick. there is. For example, in FIG. 4, the relationship may be D1>D2>D3.

Meanwhile, the supply wick 371 may be connected in a way that contacts each wick layer of the plurality of evaporation units, and may be made of the same material as each wick layer of the plurality of evaporation units. The salt water of the supply wick 371 may be supplied to each wick layer of the plurality of evaporation units by gravity and capillary action.

Through the salt water supply unit 370 of this simple structure, it is possible to construct a means for effectively distributing salt water to a plurality of evaporation units at a low cost.

Meanwhile, the detailed structure and exemplary manufacturing method of the first to nth spacers disposed between each evaporation unit will be described below. For convenience of explanation, the first to nth spacers having the same structure are collectively referred to as 'spacers' and are collectively referred to as 324.

Figures 5 and 6 are diagrams showing a spacer in a salt water desalination device according to an embodiment of the present invention. FIG. 5 shows the spacer 324 before being installed in the brine desalination device 300, and FIG. 6 shows the spacer 324 installed in the brine desalination device 300.

The spacer 324 may be made of a polymer material that is light, does not permeate or get wet with water, and has a cushioning effect. For example, the spacer 324 may be made of polystyrene foam board or polyethylene foam material.

Referring to FIG. 5, the spacer 324 before being installed in the salt water desalination device 300 may have a thin plate shape and a plurality of openings 325 in the form of a slit. For example, the spacer 324 can be manufactured by making a plurality of cuts in a thin plate-shaped polystyrene foam board or polyethylene foam at an angle to each other.

Referring to FIG. 6, the spacer 324 installed in the salt water desalination device 300 has a shape in which the left and right sides of the spacer 324 shown in FIG. 5 are pulled, and the spacer 324 in the form shown in FIG. 5 By extending the slit-shaped opening 325, the slit-shaped opening 325 can be transformed into a figure-shaped opening 325 with a sufficiently large area and installed in the salt water desalination device 300. For example, the spacer 324 installed in the salt water desalination device 300 may have an opening 325 in a square, diamond, diamond, circular, or oval shape. Accordingly, the spacer 324 can be manufactured efficiently using less material, thereby reducing manufacturing costs.

The salt water desalination device 300 according to an embodiment of the present invention may include a housing 350 that accommodates the plurality of evaporation units 310 and 320 described above.

Figure 7 is a diagram showing the housing of a salt water desalination device according to an embodiment of the present invention.

Referring to FIG. 7, the housing 350 may have a structure in which a front support body 351 and a rear support body 356 are coupled to a body with open front and rear surfaces. Additionally, a salt water supply unit 370 may be installed at the top.

The front support 351 may be made of a transparent material to allow solar heat to pass through and be transferred to the front evaporation unit 310, but is not limited thereto. The rear support 356 may secure and support components within the housing including a plurality of evaporation units.

According to one embodiment, the housing 350 may be provided with a fresh water outlet 353 and a salt water outlet 352.

Fresh water condensed in the first evaporation unit 320-1 may be discharged from the fresh water outlet 353. For example, the fresh water outlet 353 may be connected to the first collection pocket 323-1 to discharge fresh water collected in the first collection pocket 323-1. In addition, the fresh water outlet 353 is connected to the second to nth collection pockets (323-2,..., 323-n) to collect the water collected in the second to nth collection pockets (323-2,..., 323-n). Fresh water may be withdrawn.

The salt water outlet 352 may discharge salt water flowing down from the front evaporation unit 310. For example, the salt water outlet 352 is connected to the front deep stratum 312 so that salt water flowing down the front deep stratum 312 can be discharged. In addition, the salt water outlet 352 is connected to the first to nth deep ground layers 322-1,..., 322-n and flows along the first to nth deep ground layers 322-1,..., 322-n. The brine that has fallen may be drawn out.

According to one embodiment, a water pan 357 may be provided on the outer surface of the housing 350. For example, referring to FIG. 7, the front surface of the housing 350, that is, the outer surface of the front support 351, is provided with a water gutter (for example, rainwater) flowing along the outer surface of the front support 351 to collect it. 357) may be provided. At this time, the water pan 357 may have a concave groove 358 formed along the extending direction of the water pan 357 so that water can be well collected, and the water pan 357 may be formed so that the water collected in the groove 358 can flow to one side. ) can be arranged at an angle. Accordingly, the water collected through the water pan 357 can be recycled to the salt water desalination device 300 instead of salt water and desalinated.

As described above, the salt water desalination device 300 according to an embodiment of the present invention can reduce manufacturing costs by reducing parts and materials and simplifying the structure, and the front evaporation unit 310 portion that directly receives solar heat. By providing the heat insulating layer 317 and the heat conductive layer 315, it is possible to prevent components such as spacers from being deformed or damaged by solar heat.

Although the present invention has been described through preferred embodiments as described above, the present invention is not limited thereto and various modifications and variations are possible without departing from the concept and scope of the claims described below. Those working in the relevant technical field will easily understand.

300: brine desalination device 310: front evaporation unit
311: endothermic layer 312: anterior deep stratum
315: heat conduction layer 317: heat insulation layer
320-1, 320-2, 320-n: first evaporation unit, second evaporation unit, n-th evaporation unit
321-1, 321-2, 321-n: 1st waterproofing layer, 2nd waterproofing layer, nth waterproofing layer
322-1, 322-2, 322-3: 1st deep stratum, 2nd deep stratum, nth deep stratum
323-1, 323-2, 323-n: first collection pocket, second collection pocket, nth collection pocket
324-1, 324-2, 324-n: first spacer, second spacer, n-th spacer
350: Housing 351: Front support
352: salt water outlet 353: fresh water outlet
356: rear support 357: water pan
358: Guide groove 370: Salt water supply unit
371: supply wick 372: separation layer
375: Brine tank

Claims (11)

A brine desalination device comprising a plurality of evaporation units arranged to face each other and spaced apart from each other,
The plurality of evaporation units are,
A front evaporation unit disposed at the outermost part where solar heat is irradiated and including a front deep layer where salt water flows and evaporates;
A first evaporation unit facing the front core layer and including a first waterproof layer in which water vapor evaporated from the front core layer is condensed into fresh water;
a first spacer disposed between the front core layer and the first waterproof layer; and
a heat insulating layer disposed between the front core layer and the first spacer;
A salt water desalination device comprising: According to claim 1,
The front evaporation unit,
A heat absorbing layer that receives sunlight and absorbs solar heat, and
A salt water desalination device further comprising a heat-conducting layer disposed between the heat absorbing layer and the front deep layer. According to claim 1,
A salt water desalination device, wherein the first spacer has a net shape. According to claim 1,
The first evaporation unit includes a first collection pocket for collecting fresh water flowing in the first waterproofing layer. According to claim 1,
The first evaporation unit further includes a first wick layer disposed behind the first waterproof layer. According to claim 5,
a second evaporation unit facing the first core layer and including a second waterproof layer in which water vapor evaporated from the first core layer is condensed into fresh water; and
The brine desalination device further comprising a second spacer disposed between the first evaporation unit and the second evaporation unit. According to claim 6,
It further includes a salt water supply unit that supplies salt water to the front core layer and the first core layer and includes a salt water tank in which salt water is stored,
The salt water supply unit,
A salt water desalination device comprising a front supply wick connecting the brine tank and the front deep formation and a first supply wick connecting the brine tank and the first deep formation. According to claim 7,
A salt water desalination device, wherein the cross-sectional area of the front supply wick is larger than the cross-sectional area of the first supply wick so that a larger amount of salt water is supplied through the front supply wick than the first supply wick. According to claim 7,
The salt water supply unit,
Further comprising a separation layer disposed between the front supply wick and the first supply wick,
The front supply wick, the first supply wick, and the separation layer are stacked on each other. According to claim 1,
Further comprising a housing accommodating the plurality of evaporation units,
The housing is,
A salt water desalination device comprising a fresh water outlet through which fresh water condensed from the first evaporation unit is blown out, and a salt water outlet through which salt water flowing down from the front evaporation unit is blown out. According to claim 10,
On the outside of the housing
A salt water desalination device comprising a water pan arranged at an angle to collect and flow water flowing along the outer surface of the housing.

Images