KR20210092174A - Hybrid water treatment apparatus and method - Google Patents

Abstract

Provided is a hybrid water treatment device, comprising an evaporation module comprising a first steam generator for evaporating the water to be treated to generate a first steam from the water to be treated, a second steam generator receiving the first steam from the first steam generator and evaporating the water to be treated by using the first steam as a heat source to generate a second steam, and a third steam generator which receives the second steam from the second steam generator and evaporates the water to be treated by using the second steam as a heat source to generate a third steam; an adsorption and desorption module including an adsorption/desorption unit receiving the second steam from the second steam generator, adsorbing or desorbing the second steam, and using alumina as an adsorbent and a condenser for generating treated water by condensing the second steam desorbed in the adsorption and desorption unit; and a concentration module which receives the remaining water to be treated after the water to be treated is evaporated in the evaporation module, and is connected to the adsorption/desorption unit of the adsorption/desorption module to re-evaporate the remaining water to be treated with steam adsorption power by the adsorption of the adsorption/desorption unit to produce concentrated water. The present invention relates to a hybrid water treatment device and method with reduced energy consumption.

Description

Hybrid water treatment apparatus and method

The present invention relates to a hybrid water treatment apparatus and method, and more particularly, to a hybrid water treatment apparatus and method in which an evaporation module and an adsorption/desorption module are combined to solve the problem of fouling and scaling by salt water .

As the global population continues to increase and freshwater resources on the earth are limited, efforts to efficiently secure freshwater for human use are continuing. Since more than 97% of the earth's water exists in the form of seawater, a seawater desalination technology that separates the solute dissolved in seawater is being studied as a fundamental method to solve the water shortage.

In order to obtain fresh water from seawater, components dissolved or suspended in seawater must be removed to meet the standards for drinking water and drinking water. As a general process for desalination of seawater, an evaporation method, a membrane separation method, an electrodialysis method, a freezing method, etc. are known, and the most widely applied technologies are an evaporation method and a membrane separation method.

For the evaporation method, multiple stage flash (MSF), multiple effect distillation (MED), etc. are mainly used. The above-described processes have been widely used since relatively early, and have disadvantages such as a large amount of energy consumption, a large amount of corrosion due to high-temperature operation, a large production facility area, and a large initial investment cost. Accordingly, it is mainly used for large-scale desalination facilities in the energy-rich Middle East.

Reverse osmosis, a representative method of membrane separation, is a method of separating ionic substances and pure water by using a reverse osmosis membrane for components contained in seawater. This pressure is called reverse osmosis pressure. In general, since a high-pressure pump is used, considerable energy is consumed for desalination of seawater, and in the case of a large-scale desalination treatment method, the initial investment cost is high, and a considerable amount of pretreatment is required to prevent fouling by organic or inorganic substances. There are issues that need attention.

Accordingly, various technologies have been developed to solve the problems of conventional seawater-desalination technologies. For example, in Korea Patent Registration No. 10-1446205 (Application No.: 10-2012-0123219, Applicant: Toray Chemical Co., Ltd.), a pretreatment that can prevent scale problems in advance is introduced, so that the process is performed at a lower pressure than the existing seawater desalination method. An operable method and apparatus for desalination of seawater are disclosed. In addition, there is disclosed a seawater desalination method and apparatus capable of increasing the desalination rate of the entire system and further improving the lifespan of a separation membrane used during the process. In addition, a method and apparatus for desalination of seawater that reduce system operating cost and increase energy efficiency and production efficiency are disclosed.

Republic of Korea Patent Registration No. 10-1446205

One technical problem to be solved by the present invention is to provide a hybrid water treatment apparatus and method with reduced energy consumption.

Another technical problem to be solved by the present invention is to provide a hybrid water treatment apparatus and method with improved freshwater production.

Another technical problem to be solved by the present invention is to provide a hybrid water treatment apparatus and method capable of producing high-purity fresh water.

The technical problem to be solved by the present invention is not limited to the above.

In order to solve the above technical problem, the present invention provides a seawater - desalination device.

According to an embodiment, the seawater-desalination device receives the first steam from a first steam generator for evaporating seawater to generate a first steam from seawater, and the first steam generator, the first An evaporation module including a second steam generator for generating second steam by evaporating seawater using steam as a heat source, and receiving the second steam from the second steam generator to adsorb or desorb the second steam It may include an adsorption/desorption module comprising a condenser for generating fresh water (fresh water) by condensing the adsorption and desorption unit, and the second vapor desorbed from the adsorption/desorption unit.

According to an embodiment, the first steam generator includes a first heat source flow path through which a heat source provided from the outside is moved, a first seawater injection flow path for spraying seawater toward the first heat source flow path, and in the first seawater injection flow path. and a first vapor collection passage for collecting the first vapor from which seawater is evaporated by the temperature difference between the injected seawater and the first heat source passage, and providing the collected first vapor to the second steam generator, , The second steam generator includes a second heat source flow path through which the first steam provided from the first steam generator moves, a second seawater injection flow path for spraying seawater toward the second heat source flow path, and the second seawater A second vapor collection passage for collecting the second vapor from which seawater is evaporated by the temperature difference between the seawater sprayed from the injection passage and the second heat source passage, and providing the collected second vapor to the adsorption/desorption unit can do.

According to an embodiment, the first steam generator includes a first fresh water storage tank for storing the first fresh water condensed through heat exchange with seawater, and the seawater sprayed from the first seawater injection passage is evaporated Further comprising a first seawater collection flow path for collecting the remaining seawater, the second steam generator, a second freshwater storage tank for storing the second freshwater condensed through heat exchange with the first steam with seawater, and the second steam generator 2 It may further include a second seawater collection passage for collecting the remaining seawater after the seawater sprayed from the seawater injection passage is evaporated.

According to an embodiment, the hybrid seawater-desalination device is supplied with the seawater remaining after the seawater is evaporated in the evaporation module, is connected to the adsorption/desorption unit of the adsorption/desorption module, and the adsorption operation of the adsorption/desorption unit It may further include a concentration module for producing concentrated seawater by re-evaporating the remaining seawater with vapor adsorption power by

According to one embodiment, the concentrated seawater is circulated and supplied to the concentration module, and when the concentrated seawater generated in the concentration module increases by more than a reference concentration by circulation supply, the concentrated seawater is discharged to the outside may include

According to an embodiment, the concentration module may include receiving a first fluid from the outside, and producing a second fluid in which the first fluid is cooled by using evaporation heat according to re-evaporation of the remaining seawater. there is.

According to an embodiment, the concentration module receives the second vapor generated by the evaporation module, and generates a third vapor by evaporating the remaining seawater using the second vapor, and the third vapor may be transferred to the adsorption/desorption unit of the adsorption/desorption module.

According to an embodiment, the adsorption/desorption unit adsorbs the second vapor through the adsorbent, then desorbs the second vapor adsorbed to the adsorbent, and the desorbed second vapor is provided to the condenser, and the absorption The desorber includes a hot/cold flow path through which cooling water or heated water moves, and when adsorbing the second vapor, cooling water moves through the cold/hot flow path to decrease the temperature of the adsorbent, and when desorbing the second vapor, The heated water may be moved through the cold/hot flow path to increase the temperature of the adsorbent.

In order to solve the above technical problem, the present invention provides a seawater - desalination method.

According to an embodiment, the seawater-desalination method uses a temperature difference between seawater and a heat source to generate a first steam by evaporating seawater to generate a first steam, receiving the first steam, the first A second steam generating step of generating a second steam by evaporating seawater by using a temperature difference between steam and seawater, a steam adsorption step of receiving the second steam and adsorbing the second steam through an adsorbent, the above It may include a vapor desorption step of desorbing the second vapor from the adsorbent on which the second vapor is adsorbed, and a fresh water generation step of receiving and condensing the desorbed second vapor to generate fresh water. .

According to an embodiment, the generating of the first steam includes supplying a heat source into a first heat source flow path through which the heat source is moved, and spraying seawater onto the first heat source flow path, and the second steam The generating step may include supplying the first steam into a second heat source flow path through which the first steam moves, and spraying seawater onto the second heat source flow path.

According to an embodiment, the seawater-desalination method may further include a steam circulation step of supplying the second steam into the first heat source flow path after the second steam generating step and before the steam adsorption step.

According to an embodiment, the first steam generating step further includes a first seawater collecting step of collecting seawater remaining after the first steam is generated, and the second steam generating step is that the second steam is generated Further comprising a second seawater collection step of collecting the remaining seawater, wherein the seawater collected from the first and second seawater collection steps is reused for the first steam generation in the first steam generation step can

According to an embodiment, the vapor adsorption step may include supplying cooling water into a cold/hot flow path through which cooling water or heated water moves, and reducing the elevated temperature through an adsorption reaction between an adsorbent and the second vapor, In the vapor desorption step, the temperature of the adsorbent to which the second vapor is adsorbed is increased by supplying the heated water into the cold/hot flow passage through which the cooling water or the heated water moves, and the second vapor with the increased temperature is adsorbed. It may include desorbing the second vapor from the adsorbent.

According to an embodiment, in the hybrid seawater-desalination method, the seawater remaining after seawater is evaporated in the first steam generating step and the second steam generating step is supplied, and the vapor adsorption power of the adsorbent in the vapor adsorption step may further include the step of re-evaporating the remaining seawater to produce concentrated seawater.

Seawater according to an embodiment of the present invention - The desalination device receives the first steam from the first steam generator and the first steam generator for evaporating seawater to generate a first steam from seawater, the first steam A second steam generator generating a second steam by evaporating seawater (SW) using as a heat source, and receiving the second steam from the second steam generator, using the second steam as a heat source to generate seawater (SW) ) by evaporating an evaporation module including a third steam generator generating a third steam, and first and second absorption for adsorbing or desorbing the third steam by receiving the third steam from the third steam generator It may include a desorber, and the adsorption/desorption module including a condenser for condensing the third vapor desorbed in the first and second adsorption and desorption units to generate high-pure water (fresh water). Accordingly, it is possible to not only produce high-purity fresh water by using a small amount of energy, but also to provide a seawater-desalination device with improved high-purity fresh water production.

1 is a view showing a hybrid seawater-desalination device according to a first embodiment of the present invention.
2 is a diagram specifically illustrating an evaporation module and a concentration module included in the hybrid seawater-desalination device according to the first embodiment of the present invention.
3 is a diagram specifically illustrating an evaporation module included in the hybrid seawater-desalination device according to an embodiment of the present invention.
4 is a view for explaining an operation method of the first steam generator included in the hybrid seawater-desalination device according to an embodiment of the present invention.
5 is a view showing a hybrid seawater-desalination device according to a second embodiment of the present invention.
6 is a diagram specifically illustrating an evaporation module and a concentration module included in the hybrid seawater-desalination device according to the second embodiment of the present invention.
7 is a view showing in detail the adsorption/desorption module included in the seawater-desalination device according to an embodiment of the present invention.
8 to 10 are views showing the opposite operation process of the first and second adsorption/desorption unit in the adsorption/desorption module included in the seawater-desalination device according to an embodiment of the present invention.
11 and 12 are flow charts illustrating a seawater-desalination method according to an embodiment of the present invention.
13 is a view showing a hybrid seawater-desalination device according to a first modified example of the present invention.
14 is a diagram illustrating a seawater supply module included in a hybrid seawater-desalination device according to a first modified example of the present invention.
15 is a view showing a hybrid seawater-desalination device according to a second modified example of the present invention.
16 is a diagram illustrating a seawater supply module included in a hybrid seawater-desalination device according to a second modified example of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the technical spirit of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In this specification, when a component is referred to as being on another component, it may be directly formed on the other component or a third component may be interposed therebetween. In addition, in the drawings, thicknesses of films and regions are exaggerated for effective description of technical content.

In addition, in various embodiments of the present specification, terms such as first, second, third, etc. are used to describe various components, but these components should not be limited by these terms. These terms are only used to distinguish one component from another. Accordingly, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Each embodiment described and illustrated herein also includes a complementary embodiment thereof. In addition, in the present specification, 'and/or' is used to mean including at least one of the elements listed before and after.

In the specification, the singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, terms such as "comprise" or "have" are intended to designate that a feature, number, step, element, or a combination thereof described in the specification is present, and one or more other features, numbers, steps, configuration It should not be construed as excluding the possibility of the presence or addition of elements or combinations thereof. Also, in the present specification, the term “connection” is used to include both indirectly connecting a plurality of components and directly connecting a plurality of components.

In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a view showing a hybrid seawater-desalination device according to an embodiment of the present invention.

Referring to FIG. 1 , the hybrid seawater-desalination device according to an embodiment of the present invention may include an evaporation module 100 , a concentration module 170 , and an adsorption/desorption module 200 . The evaporation module 100 may generate steam by evaporating seawater (SW). The concentration module 170 may re-evaporate the seawater remaining after evaporation in the evaporation module 100 to produce concentrated seawater. The adsorption/desorption module 200 receives vapor from the evaporation module 100 and/or the concentration module 170, adsorbs and desorbs through an adsorbent, and then condenses the desorbed vapor to obtain fresh water. can create Hereinafter, each configuration will be described in more detail.

2 and 3 are diagrams specifically illustrating an evaporation module and a concentration module included in the hybrid seawater-desalination device according to an embodiment of the present invention, and FIG. 4 is a hybrid seawater-desalination device according to an embodiment of the present invention. It is a view for explaining the operation method of the first steam generator. In describing the operation method of the evaporation module, although the first steam generator is described as an example in FIG. 4 , the operation method of the second and third steam generators may also be the same as the first steam generator.

2 to 4 , the evaporation module 100 may include a first steam generator 110 , a second steam generator 120 , and a third steam generator 130 , and the evaporation module 100 ) and a thermal compressor 140 connected to the concentration module 170 , a fresh water storage tank 150 , and a first circulation pump 160 may be provided. Hereinafter, each configuration will be described.

In addition, although the evaporation module 100 is described as including the first to third steam generators 110 , 120 and 130 , the number of steam generators included in the evaporation module 100 is not limited. For example, the evaporation module 100 may be configured to include first and second steam generators 110 and 120 .

The first steam generator 110 includes a first heat source flow path 111 , a first seawater injection flow path 112 , a first steam collection flow path 113 , a first seawater collection flow path 114 , and a first fresh water storage tank. (115). According to an embodiment, the first steam generator 110 may include a plurality of the first heat source flow paths 111 . For example, as shown in FIGS. 1 to 4 , four first heat source flow paths 110 may be disposed in the first steam generator 110 . The number of the first heat source flow paths 111 is not limited.

A heat source (HS) may be introduced into the first heat source flow path 111 from the outside. The first heat source flow path 111 may provide a path through which the heat source moves within the first steam generator 110 . According to an embodiment, the heat source HS may be high-temperature fresh water. According to another embodiment, the heat source HS may be a high-temperature vapor.

Seawater SW may be introduced into the first seawater injection passage 112 . The first seawater injection passage 112 may provide a path through which the seawater SW introduced into the first steam generator 110 moves. In addition, the first seawater injection passage 112 may spray the seawater (SW) introduced therein toward the first heat source passage 111 . In this case, the seawater SW sprayed toward the first heat source flow path 111 may be evaporated by heat exchange with the heat source HS in the first heat source flow path 111 having a relatively high temperature. Accordingly, around the first heat source flow path 111 , the first vapor VP _{1 in} which the seawater SW is evaporated may be generated.

The first vapor collection passage 113 may collect the first vapor VP ₁ and provide a path through which the collected first vapor moves. In addition, the first vapor collection passage 113 may provide the collected first vapor VP ₁ to the second vapor generator 120 .

The first seawater collection passage 114 may collect the remaining seawater SW after the seawater SW sprayed from the first seawater injection passage 112 is evaporated. In addition, the first seawater collection passage 114 may provide a path through which the evaporated and remaining seawater SW moves in the first steam generator 110 . In addition, the first seawater collection passage 114 may provide the evaporated and remaining seawater SW to the second steam generator 120 .

The first fresh water storage tank 115 may be connected to the first heat source flow path 111 . In addition, the first fresh water storage tank 115 may store the first fresh water FW ₁ condensed by the heat source HS through heat exchange with seawater SW. According to an embodiment, when the heat source HS is high-temperature fresh water, the first fresh water FW ₁ may have a reduced temperature of the high-temperature fresh water. According to another embodiment, when the heat source HS is high-temperature steam, the first fresh water FW ₁ may be condensed as the temperature of the high-temperature steam is reduced below the boiling point. In addition, the first fresh water storage tank 115 may provide the first fresh water FW ₁ to the second steam generator 120 .

The first steam generator 110 includes a 1-1 steam generator inlet 110a, a 1-2 steam generator inlet 110b, a 1-1 steam generator outlet 110c, and a 1-2 steam generator outlet ( 110d), and a 1-3 steam generator outlet 110e.

The 1-1 steam generator inlet 110a may be disposed in the first seawater injection passage 112 . A first seawater line 11 may be connected to the 1-1 steam generator inlet 110a. Accordingly, seawater SW provided from the outside may be introduced into the first seawater injection passage 112 through the first seawater line 11 .

The 1-2 steam generator inlet 110b may be disposed in the first heat source flow path 111 . A second heat source line 22 may be connected to the 1-2 steam generator inlet 110b. Accordingly, the heat source HS provided from the outside may be introduced into the first heat source flow path 111 through the second heat source line 22 .

The 1-1 steam generator outlet 110c may be disposed in the first steam collection passage 113 . A third heat source line 23 may be connected to the 1-1 steam generator outlet 110c. _{Accordingly, the first steam VP 1} discharged from the first steam collection passage 113 may be provided to the second steam generator 120 through the third heat source line 23 .

The 1-2 steam generator outlet 110d may be disposed in the first seawater collection flow path 114 . A second seawater line 12 may be connected to the 1-2 steam generator outlet 110d. Accordingly, the seawater SW discharged from the first seawater collection passage 114 may be provided to the second steam generator 120 through the second seawater line 12 .

The 1-3 steam generator outlet 110e may be disposed on one side of the first steam generator 110 and communicate with the first freshwater storage tank 115 through a first freshwater line 31 . . _{Accordingly, the first fresh water FW 1} discharged from the first fresh water storage tank 115 may be provided to the second steam generator 120 through the first fresh water line 31 . _{Specifically, the first fresh water FW 1} discharged from the first fresh water storage tank 115 may be provided to a second fresh water storage tank 125 to be described later through the first fresh water line 31 .

The second steam generator 120 includes a second heat source flow path 121 , a second seawater injection flow path 122 , a second steam collection flow path 123 , a second seawater collection flow path 124 , and a second fresh water storage tank. (125).

_{The first vapor VP 1} provided from the first vapor collection passage 113 may be introduced into the second heat source passage 121 . The second heat source flow path 121 may provide a path through which _{the first steam VP 1 moves within the second steam generator 120 .}

Seawater SW may be introduced into the second seawater injection passage 122 . The second seawater injection passage 122 may provide a path through which the seawater SW introduced into the second steam generator 120 moves. In addition, the second seawater injection passage 122 may spray the seawater (SW) introduced therein toward the second heat source passage 121 . In this case, the seawater SW sprayed toward the second heat source flow path 121 may be evaporated by heat exchange with _{the first steam VP 1 in the second heat source flow path 121 having a relatively high temperature.} . _{Accordingly, the second steam VP 2 in} which the seawater SW is evaporated may be generated around the second heat source flow path 121 .

The second vapor collecting passage 123 may provide a path for the collection of the second steam (VP ₂₎ and a second vapor (VP ₂₎ moves collected. In addition, the second vapor collection passage 123 may provide the collected second vapor VP ₂ to the third vapor generator 130 .

The second seawater collection passage 124 may collect the remaining seawater SW after the seawater SW sprayed from the second seawater injection passage 122 is evaporated. In addition, the second seawater collection passage 124 may provide a path through which the evaporated and remaining seawater SW moves in the second steam generator 120 . In addition, the second seawater collection passage 124 may provide the evaporated and remaining seawater SW to the third steam generator 130 .

The second fresh water storage tank 125 may be connected to the second heat source flow path 121 . In addition, the second fresh water storage tank 125 may store _{the second fresh water FW 2} in which _{the first steam VP 1} is condensed through heat exchange with seawater SW. In addition, the second fresh water storage tank 125 may provide the second fresh water FW ₂ to the third steam generator 130 . _{According to an embodiment, as the first fresh water FW 1} is provided from the first fresh water storage tank 115 to the second fresh water storage tank 125 as described above, the second fresh water FW ₂ ) may include the first fresh water (FW ₁ ).

The second steam generator 120 includes a 2-1 steam generator inlet 120a, a 2-2 steam generator inlet 120b, a 2-3 steam generator inlet 120d, and a 2-4 steam generator inlet ( 120f), a 2-1 steam generator outlet 120c, a 2-2 steam generator outlet 120e, and a 2-3 steam generator outlet 120g.

The 2-1 steam generator inlet 120a may be disposed in the second seawater injection passage 122 . A first seawater line 11 may be connected to the 2-1 steam generator inlet 120a. Accordingly, seawater SW provided from the outside may be introduced into the second seawater injection passage 122 through the first seawater line 11 .

The 2-2 steam generator inlet 120b may be disposed in the second heat source flow path 121 . A third heat source line 23 may be connected to the 2-2 steam generator inlet 120b. _{Accordingly, the first vapor VP 1} provided from the first vapor collection line 113 may be introduced into the second heat source flow path 121 through the third heat source line 23 .

The 2-3 steam generator inlet 120d may be disposed in the second seawater collection passage 124 . The second seawater line 12 may be connected to the 2-3 steam generator inlet 120d. Accordingly, the seawater SW discharged from the first seawater collection passageway 114 may be provided to the second seawater collection passageway 124 through the second seawater line 12 .

The 2-4 steam generator inlet 120f may be disposed on one side of the second steam generator 120 to communicate with the second fresh water storage tank 125 through the first fresh water line 31 . there is. _{Accordingly, the first fresh water FW 1} discharged from the first fresh water storage tank 115 may be provided to the second fresh water storage tank 125 through the first fresh water line 31 .

The 2-1 steam generator outlet 120c may be disposed in the second steam collection passage 123 . A fourth heat source line 24 may be connected to the 2-1 steam generator outlet 120c. _{Accordingly, the second steam VP 2} discharged from the second steam collection passage 123 may be provided to the third steam generator 130 through the fourth heat source line 24 .

The 2-2 steam generator outlet 120e may be disposed in the second seawater collection passage 124 . A third seawater line 13 may be connected to the 2-2 steam generator outlet 120e. Accordingly, the seawater SW discharged from the second seawater collection passage 124 may be provided to the third steam generator 130 through the second seawater line 12 .

The 2-3 steam generator outlet 120g may be disposed on one side of the second steam generator 120 to communicate with the second freshwater storage tank 125 through a second freshwater line 32 . . _{Accordingly, the second fresh water FW 2} discharged from the second fresh water storage tank 125 may be provided to the third steam generator 130 through the second fresh water line 32 . _{Specifically, the second fresh water FW 2} discharged from the second fresh water storage tank 125 may be provided to a third fresh water storage tank 135 to be described later through the second fresh water line 32 .

The third steam generator 130 includes a third heat source flow path 131 , a third seawater injection flow path 132 , a third steam collection flow path 133 , a third seawater collection flow path 134 , and a third fresh water storage tank. (135).

_{The second vapor VP 2} provided from the second vapor collection passage 123 may be introduced into the third heat source passage 131 . The third heat source flow path 131 may provide a path through which _{the second steam VP 2 moves within the third steam generator 130 .}

Seawater SW may be introduced into the third seawater injection passage 132 . The third seawater injection passage 132 may provide a path through which the seawater SW introduced into the third steam generator 130 moves. In addition, the third seawater injection flow path 132 may spray the seawater (SW) introduced therein toward the third heat source flow path 131 . In this case, the seawater SW sprayed toward the third heat source flow path 131 may be evaporated by heat exchange with _{the second steam VP 2 in the third heat source flow path 131 at a relatively high temperature.} . _{Accordingly, the third steam VP 3 in} which the seawater SW is evaporated may be generated around the third heat source flow path 131 .

It said third vapor collection flow path 133 may provide a path to collect the third steam (VP ₃₎ and moving the collection and the third steam (VP _3). In addition, the third vapor collection passage 133 is the collected third vapor (VP ₃ ) to a thermocompressor 140 , a first adsorption/desorption unit 210 , and a second adsorption/desorption unit 220 to be described later. may be provided.

The third seawater collection passage 134 may collect seawater SW that remains after the seawater SW sprayed from the third seawater injection passage 132 is evaporated. In addition, the third seawater collection passage 134 may provide a path through which the evaporated and remaining seawater SW moves in the third steam generator 130 . In addition, the third seawater collection passage 134 may provide the evaporated and remaining seawater SW to a first circulation pump 160 to be described later.

The third fresh water storage tank 135 may be connected to the third heat source flow path 131 . Also, the third fresh water storage tank 135 may store _{the third fresh water FW 3} in which _{the second steam VP 2} is condensed through heat exchange with seawater SW. In addition, the third fresh water storage tank 135 may provide the third fresh water FW ₃ to the fresh water storage tank 150 . _{According to an embodiment, as the second fresh water FW 2} is provided from the second fresh water storage tank 125 to the third fresh water storage tank 135 as described above, the third fresh water FW ₃ ) may include the first fresh water (FW ₁ ) and the second fresh water (FW ₂ ).

The third steam generator 130 includes a 3-1 steam generator inlet 130a, a 3-2 steam generator inlet 130b, a 3-3 steam generator inlet 130d, and a 3-4 steam generator inlet ( 130f), a 3-1 steam generator outlet 130c, a 3-2 steam generator outlet 130e, and a 3-3 steam generator outlet 130g.

The 3-1 steam generator inlet 130a may be disposed in the third seawater injection passage 132 . A first seawater line 11 may be connected to the 3-1 steam generator inlet 130a. Accordingly, seawater SW provided from the outside may be introduced into the third seawater injection passage 132 through the first seawater line 11 .

The 3-2 steam generator inlet 130b may be disposed in the third heat source flow path 131 . A fourth heat source line 24 may be connected to the 3-2 steam generator inlet 130b. _{Accordingly, the second vapor VP 2} provided from the second vapor collection line 123 may be introduced into the third heat source flow path 131 through the fourth heat source line 24 .

The third-third steam generator inlet 130d may be disposed on one side of the third seawater collection passage 134 . The third seawater line 13 may be connected to the third-third steam generator inlet 130d. Accordingly, the seawater SW discharged from the second seawater collection passageway 124 may be provided to the third seawater collection passageway 134 through the third seawater line 13 .

The 3-4 steam generator inlet 130f may be disposed on one side of the third steam generator 130 and communicate with the third freshwater storage tank 135 through the second freshwater line 32 . there is. _{Accordingly, the second fresh water FW 2} discharged from the second fresh water storage tank 125 may be provided to the third fresh water storage tank 135 through the second fresh water line 32 .

The 3-1 steam generator outlet 130c may be disposed in the third steam collection passage 133 . A fifth heat source line 25 may be connected to the 3-1 steam generator outlet 130c. _{Accordingly, the third vapor (VP 3} ) discharged from the third vapor collection passage 133 is a thermocompressor 140 , which will be described later through the fifth heat source line 25 , and a first adsorption/desorption unit 210 ). , and a second adsorption/desorption unit 220 may be provided.

The 3-2 steam generator outlet 130e may be disposed on the other side of the third seawater collection passage 134 . A fourth seawater line 14 may be connected to the 3-2 steam generator outlet 130e. Accordingly, the seawater SW discharged from the third seawater collection passage 134 may be provided to the first circulation pump 160 to be described later through the fourth seawater line 14 .

The third-third steam generator outlet 130g may be disposed on one side of the third steam generator 130 and communicate with the third freshwater storage tank 135 through the third freshwater line 33 . . _{Accordingly, the third fresh water FW 3} discharged from the third fresh water storage tank 135 may be provided to the fresh water storage tank 150 through the third fresh water line 33 .

The concentration module 170, the fourth heat source flow path (171a, 171b), the fourth seawater injection flow path 172, the fourth vapor collection flow path 173, the fourth seawater collection flow path 174, and the fourth storage tank (175).

The fourth heat source flow paths 171a and 172b may be divided into a first group flow path 171a and a second group flow path 171b. A first fluid is supplied from the fluid supply unit 182 to the first group flow path 171a, and as will be described later, a second fluid in which the first fluid is cooled due to evaporation heat due to evaporation of the remaining seawater SW. may be transferred to the fluid collection unit 184 via the fourth storage tank 175 and the second group flow path 171b.

The seawater SW discharged through the fourth seawater line 14 is provided to the first circulation pump 160 and then provided to the second circulation pump 176 through the fifth seawater line 15, the The second circulation pump 176 may be supplied to the fourth seawater injection passage 172 via the sixth seawater line 16 . In other words, seawater (SW) is evaporated in the evaporation module 100 and the remaining seawater (SW) is converted into the first circulation pump 160 , the fifth seawater line 15 , and the second circulation pump 176 . ), and the sixth seawater line 16 may be provided to the fourth seawater injection flow path 172 .

The fourth seawater injection passage 172 may provide a path through which the remaining seawater SW moves. Also, the fourth seawater injection passage 172 may spray the remaining seawater SW introduced therein toward the fourth heat source passages 171a and 171b. In this case, the remaining seawater SW injected into the fourth heat source passages 171a and 171b may be re-evaporated with vapor adsorption force by an adsorption operation of an adsorption/desorption unit, which will be described later. Accordingly, the steam re-evaporated from the remaining seawater SW may be generated around the fourth heat source flow paths 171a and 171b.

As described above, when the remaining seawater (SW) injected from the fourth seawater injection flow path 172 is re-evaporated due to the vapor adsorption force by the adsorption operation of the adsorption/desorption unit, the ash of the remaining seawater The first fluid flowing into the first group flow path 171a is cooled by heat of evaporation according to evaporation to generate the second fluid, and the fourth storage tank 175 and the second fluid are generated. The second fluid may be transferred to the fluid collection unit 184 via the group flow path 171b. For example, the second fluid, which is cooled and has a relatively low temperature, may be utilized for cooling.

The fourth steam collection flow path 173 provides a path through which the steam generated by re-evaporating the remaining seawater SW moves, and collecting the steam generated by re-evaporating the remaining seawater SW to the fifth It may be transferred to the adsorption/desorption module 200 and the heat compressor 140 via the heat source line 25 .

The fourth seawater collection flow path 174 may collect the seawater (SW) remaining after evaporation, and the seawater (SW) collected in the fourth seawater collection flow path 174 is connected to the seventh seawater line 17 . Via, it is provided to the second circulation pump 176, it can be introduced back into the concentration module (170). Accordingly, the remaining seawater (SW) is circulated and supplied to the concentration module 170, and when the concentrated seawater generated in the concentration module 170 by circulation supply increases by more than a reference concentration, the concentrated seawater is It may be discharged to the outside through the eighth seawater line 18 .

The thermal compressor 140, as described above, the third steam (VP ₃ ) generated from the third steam generator 130 and the remaining seawater (SW) in the concentration module 170 is evaporated steam can be provided. In addition, the third steam generator 130 may receive an external heat source HS to be supplied to the first steam generator 110 . The thermal compressor 140 may _{mix the third steam VP 3} and the external heat source HS, and then supply the mixed heat source HS to the first steam generator 110 . More specifically, the thermal compressor 140 may be connected to the first heat source line 21 to receive the external heat source HS through the first heat source line 21 . In addition, the thermal compressor 140 may receive the third steam VP ₃ and the steam from which the remaining seawater SW is evaporated through the fifth heat source line 25 . In addition, the thermal compressor 140 may supply the mixed heat source to the first steam generator 110 through the second heat source line 22 . Accordingly, the seawater-desalination apparatus according to the embodiment may reduce energy loss by recycling the heat of the steam finally generated in the evaporation module 100 .

_{As described above, the fresh water storage tank 150 is connected to the third fresh water (FW 3} ) from the fourth fresh water storage tank 175 included in the concentration module 170 through the fourth fresh water line 34 . ) can be provided. Accordingly, the freshwater storage tank 150 is the first to third fresh water (FW ₁ , FW ₂ , FW ₃ ) generated from each of the first to third steam generators 110 , 120 , 130 are all stored. can

The first circulation pump 160 is connected to the first seawater line 11 so that seawater (SW) provided from the outside is supplied to the first to third steam generators 110 through the first seawater line 11 . , 120, 130) can be easily supplied. In addition, as described above, the remaining seawater SW flowing out from the third seawater collection line 134 included in the third steam generator 130 may be provided to the first circulation pump 160 . The first circulation pump 160 mixes the remaining seawater (SW) and external seawater (SW), and then supplies the mixed seawater (SW) to the first to third steam generators 110, 120, 130. can That is, the seawater-desalination device according to the embodiment may recycle the remaining seawater SW after the steam is generated.

Unlike the first embodiment of the present invention described above, according to the second embodiment of the present invention, the process of generating the second fluid used for cooling may be omitted.

Hereinafter, with reference to FIGS. 5 and 6 , a hybrid seawater-desalination device and an operating method thereof according to a second embodiment of the present invention will be described.

5 is a diagram illustrating a hybrid seawater-desalination device according to a second embodiment of the present invention, and FIG. 6 is a hybrid seawater-desalination device according to a second embodiment of the present invention. Specifically, an evaporation module and a concentration module included in the desalination device It is a drawing showing

Hereinafter, the same configuration and operation as the hybrid seawater-desalination apparatus according to the first embodiment of the present invention described with reference to FIGS. 1 to 4 will be omitted, and differences will be mainly described.

5 and 6 , the third steam (VP ₃ ) generated by the third steam generator 130 is the fourth of the concentration module 170 via the fifth heat source line 25 . It may be supplied to the heat source flow path (171a, 171b).

In the evaporation module 100, seawater (SW) is evaporated and the remaining seawater (SW), the first circulation pump 160, the fifth seawater line 15, the second circulation pump 176, and It may be provided to the fourth seawater injection passage 172 via the sixth seawater line 16 . The fourth seawater injection passage 172 may spray the remaining seawater SW introduced therein toward the fourth heat source passages 171a and 171b.

The seawater SW sprayed toward the fourth heat source flow path 171a, 171b may exchange heat with _{the third steam VP 3 in the relatively high temperature fourth heat source flow path 171a, 171b,} It can be re-evaporated by the vapor adsorption force by the adsorption operation of the adsorption/desorption unit. Accordingly, the steam re-evaporated from the remaining seawater SW may be generated around the fourth heat source flow paths 171a and 171b.

The fourth steam collection passage 173 provides a path through which the steam generated by re-evaporating the remaining seawater SW moves, and converting the steam generated by re-evaporating the remaining seawater SW to a sixth heat source. It may be transferred to the adsorption/desorption module 200 and the thermal compressor 140 via the line 26 .

The fourth fresh water storage tank 175 may be connected to the third heat source flow path 33 . In addition, the fourth fresh water storage tank 175 may store the fourth fresh water in which the third vapor VP ₃ is condensed through heat exchange with seawater SW. In addition, the fourth fresh water storage tank 175 may provide the fourth fresh water to the fresh water storage tank 150 . _{According to an embodiment, as the third fresh water FW 3} is provided from the third fresh water storage tank 135 to the fourth fresh water storage tank 175 as described above, the fourth fresh water is The first fresh water (FW ₁ ) to the third fresh water (FW ₃ ) may be included.

7 is a view showing in detail the adsorption/desorption module included in the seawater-desalination device according to an embodiment of the present invention.

Referring to FIG. 7 , the adsorption/desorption module 200 may include a first adsorption/desorption unit 210 , a second adsorption/desorption unit 220 , a condenser 230 , and a high-purity fresh water storage tank 240 . . Hereinafter, each configuration will be described.

The first adsorption/desorption unit 210 may include a first cold/hot flow path 212 through which cooling water (CW) or heating water (HW) moves, and an adsorbent (AD). In addition, the first adsorption/desorption unit 210 is the third steam (VP ₃ ) and/or the remaining seawater (SW) generated in the concentration module 170 generated from the third steam generator 130 may be provided with vaporized vapor (hereinafter, mixed vapor). Accordingly, the first adsorption/desorption unit 210 may adsorb the mixed vapor using the adsorbent AD and then desorb the mixed vapor adsorbed to the adsorbent AD. there is. The mixed vapor desorbed in the first adsorption/desorption unit 210 may be provided to the condenser 230 . According to an embodiment, the adsorbent AD may be a solid material capable of adsorbing moisture. For example, the adsorbent AD may be activated carbon, diatomaceous earth, zeolite, silica gel, starch, bentonite, alumina, or the like.

Specifically, when the mixed vapor is adsorbed in the first adsorption/desorption unit 210, cooling water (CW) is supplied to the first cold/hot flow path 212, and the first cold/hot flow path 212 surrounds the The temperature of the adsorbent AD can be reduced. The adsorption reaction in which the adsorbent AD adsorbs the mixed vapor is an exothermic reaction and may increase the temperature inside the first adsorption/desorption unit 210 . An increase in the temperature inside the first adsorption/desorption unit 210 may decrease the adsorption amount of the adsorbent AD. Accordingly, by supplying the cooling water CW to the first cold/hot flow path 212 , the temperature of the adsorbent AD is decreased to prevent a decrease in the adsorption amount, so that the mixed vapor can be easily adsorbed. On the other hand, when the mixed vapor is desorbed in the first adsorption/desorption unit 210 , heating water (HW) is supplied to the first cold/hot flow path 212 , and the heat around the first cold/hot flow path 212 . The temperature of the adsorbent AD may be increased. When the temperature of the adsorbent AD is increased, the mixed vapor may be desorbed from the adsorbent AD that has adsorbed the mixed vapor.

The first adsorption/desorption unit 210 is a 1-1 adsorption/desorption unit inlet (210a), a 1-2 adsorption/desorption unit inlet (210c), a 1-1 adsorption/desorption unit outlet (210b), and a first 1- 2 may include an adsorption/desorption outlet outlet (210d).

The 1-1 adsorption/desorption unit inlet 210a may be connected to the fifth heat source line 25 . Accordingly, after the mixed vapor moves through the fifth heat source line 25 , it may be introduced into the first adsorption/desorption unit 210 through the 1-1 adsorption/desorption unit inlet 210a.

The 1-2 adsorption/desorption unit inlet 210c may be connected to the first switch line 61 and the first cold/hot flow path 212 . That is, the 1-2 adsorption/desorption unit inlet 210c may communicate the first switch line 61 and the first cold/hot flow path 212 . The first switch line 61 may provide a movement path through which cooling water CW or heating water HW is provided to the first cold/hot flow path 212 . Accordingly, cooling water (CW) or heating water (HW) may be introduced into the first adsorption/desorption unit 210 through the first switch line 61 . According to an embodiment, one end of the first switch line 61 may be bifurcated, and a cooling water line may be connected to one, and a heating water line may be connected to the other.

The 1-1 adsorption/desorption unit outlet 210b may be connected to a sixth heat source line 26 . The sixth heat source line 26 may provide a path through which the mixed vapor desorbed in the first adsorption/desorption unit 210 moves to the condenser 230 . Accordingly, the mixed vapor desorbed from the first adsorption/desorption unit 210 is discharged from the first adsorption/desorption unit 210 through the 1-1 adsorption/desorption unit outlet 210b, and then the sixth It may be provided to the condenser 230 through the heat source line 26 .

The 1-2 adsorption/desorption unit outlet 210d may be connected to the third switch line 63 and the first cold/hot flow path 212 . That is, the 1-2 adsorption/desorption unit outlet 210d may communicate the third switch line 63 and the first cold/hot flow path 212 . The third switch line 63 may provide a path through which the cooling water CW or the heating water HW discharged from the first cold/hot flow path 212 moves. According to an embodiment, one end of the third switch line 63 may be bifurcated, one may be connected to a cooling water line, and the other may be connected to a heated water line.

The second adsorption/desorption unit 220 may include a second cold/hot flow path 214 through which cooling water (CW) or heating water (HW) moves, and an adsorbent (AD). In addition, the second adsorption/desorption unit 220 may be provided with the mixed vapor. Accordingly, the second adsorption/desorption unit 220 may adsorb the mixed vapor using the adsorbent AD and then desorb the mixed vapor adsorbed to the adsorbent AD. there is. The mixed vapor desorbed by the second adsorption/desorption unit 220 may be provided to the condenser 230 . According to an embodiment, the second adsorption/desorption unit 220 may be disposed in parallel with the first adsorption/desorption unit 210 .

Specifically, when adsorbing the mixed vapor in the second adsorption/desorption unit 220, the cooling water (CW) is supplied to the second cold and hot passage 214, and the first cold and hot passage 214 around the The temperature of the adsorbent AD can be reduced. When the temperature of the adsorbent AD is decreased, the adsorbent AD may easily adsorb the mixed vapor provided in the second adsorption/desorption unit 220 . On the other hand, when the mixed vapor is desorbed in the second adsorption/desorption unit 220 , heated water is supplied to the second cold/hot channel 214 , and the adsorbent AD around the first cold/hot channel 214 . ) can increase the temperature. When the temperature of the adsorbent AD is increased, the mixed vapor may be desorbed from the adsorbent AD that has adsorbed the mixed vapor.

The second adsorption/desorption unit 220 is a 2-1 adsorption/desorption unit inlet (220a), a 2-2 adsorption/desorption unit inlet (220c), a 2-1 adsorption/desorption unit outlet (220b), and a second 2- 2 may include an adsorption/desorption outlet outlet (220d).

The 2-1 adsorption/desorption unit inlet 220a may be connected to the fifth heat source line 25 . Accordingly, after the mixed vapor moves through the fifth heat source line 25 , it may be introduced into the second adsorption/desorption unit 220 through the 2-1 adsorption/desorption unit inlet (220a).

The 2-2 adsorption/desorption unit inlet 220c may be connected to the second switch line 62 and the second cold/hot flow path 214 . That is, the 2-2 adsorption/desorption unit inlet 220c may communicate the second switch line 62 and the second cold/hot flow path 214 . The second switch line 62 may provide a movement path through which cooling water or heated water is provided to the second cold/hot flow path 214 . Accordingly, cooling water (CW) or heating water (HW) may be introduced into the second adsorption/desorption unit 220 through the second switch line (62). According to an embodiment, one end of the second switch line 62 may be bifurcated, one may be connected to a cooling water line, and the other may be connected to a heated water line.

The 2-1 adsorption/desorption unit outlet (220b) may be connected to the seventh heat source line (27). The seventh heat source line 27 may provide a path through which the mixed vapor desorbed in the second adsorption/desorption unit 220 moves to the condenser 230 . Accordingly, the mixed vapor desorbed from the second adsorption/desorption unit 220 is discharged from the second adsorption/desorption unit 220 through the 2-1 adsorption/desorption unit outlet 210b, and then the seventh It may be provided to the condenser 230 through the heat source line 27 .

The 2-2 adsorption/desorption unit outlet 220d may be connected to the fourth switch line 64 and the second cold/hot flow path 214 . That is, the 2-2 adsorption/desorption unit outlet 220d may communicate the fourth switch line 64 and the second cold/hot flow path 214 . The fourth switch line 64 may provide a path through which the cooling water CW or the heating water HW discharged from the second cold/hot flow path 214 moves. According to an embodiment, one end of the fourth switch line 64 may be bifurcated, one may be connected to a cooling water line, and the other may be connected to a heated water line.

The condenser 230 may receive the mixed vapor desorbed from the first adsorption/desorption unit 210 and the second adsorption/desorption unit 220 . Also, the cooling water CW may be provided from the outside of the condenser 230 . Accordingly, the condenser 230 may condense the mixed vapor through the cooling water CW to generate high purity fresh water FW. In addition, the condenser 230 may provide the generated high-purity fresh water to the high-purity fresh water storage tank 240 .

The condenser 230 may include a first condenser inlet 230a, a second condenser inlet 230b, a third condenser inlet 230c, a first condenser outlet 230d, and a second condenser outlet 230e. .

The first condenser inlet 230a may be connected to the sixth heat source line 26 . Accordingly, the mixed vapor desorbed from the first adsorption/desorption unit 210 may be provided to the condenser 230 through the sixth heat source line 26 . The second condenser inlet 230b may be connected to the seventh heat source line 27 . Accordingly, the mixed vapor desorbed from the second adsorption/desorption unit 220 may be provided to the condenser 230 through the seventh heat source line 27 . The third condenser inlet 230c may be connected to the first coolant line 31 . The first cooling water line 31 may supply cooling water CW to the condenser 230 .

The first condenser outlet 230d may be connected to the first highly concentrated fresh water line 51 . The first highly concentrated fresh water line 51 may provide a path through which the highly concentrated fresh water discharged from the condenser 230 is moved to the highly concentrated fresh water storage tank 240 . The second condenser outlet 230e may be connected to the third coolant line 33 . The third cooling water line 33 may provide a path through which the cooling water discharged from the condenser 230 moves.

The fresh water production module 200 includes a first steam inlet valve 251 , a second steam inlet valve 252 , a first steam outlet valve 253 , a second steam outlet valve 254 , and a first cooling water inlet valve 261 , a second coolant inlet valve 262 , a first coolant outlet valve 265 , a second coolant outlet valve 266 , a first heated water inlet valve 263 , and a second heated water inlet valve 264 . , a first heated water outlet valve 267 , and a second heated water outlet valve 268 may be further included.

The first steam inlet valve 251 may be disposed in the fifth heat source flow path 25 connected to the first adsorption/desorption unit 210 . The first steam inlet valve 251 may control the inflow of the mixed steam introduced into the first adsorption/desorption unit 210 . The second steam inlet valve 252 may be disposed in the fifth heat source flow path 25 connected to the second adsorption/desorption unit 220 . The second steam supply valve 252 may control the inflow of the mixed steam flowing into the second adsorption/desorption unit 220 .

The first steam outlet valve 253 may be disposed in the sixth heat source flow path 26 connected to the first adsorption/desorption unit 210 . The first steam outlet valve 253 may control the outflow of the desorbed mixed vapor discharged from the first adsorption/desorption unit 210 to the condenser 230 . The second steam outlet valve 254 may be disposed in the seventh heat source flow path 27 connected to the second adsorption/desorption unit 220 . The second vapor outlet valve 254 may control the outflow of the desorbed mixed vapor discharged from the second adsorption/desorption unit 220 to the condenser 230 .

The first coolant inlet valve 261 may be disposed between the first coolant line 31 and the first switch line 61 connected to the first adsorption/desorption unit 210 . That is, the coolant CW flowing in from the outside passes through the first coolant line 31 , the first coolant inlet valve 261 and the first switch line 61 in sequence, and the first adsorption/desorption unit ( 210) may be provided. In addition, the first coolant inlet valve 261 may control the inflow of the coolant CW provided to the first adsorption/desorption unit 210 .

The second coolant inlet valve 262 may be disposed between the first coolant line 31 and the second switch line 62 connected to the second adsorption/desorption unit 220 . That is, the coolant CW flowing in from the outside passes through the first coolant line 31 , the second coolant inlet valve 262 and the second switch line 62 in sequence, and the second adsorption/desorption unit ( 220) can be provided. In addition, the second coolant inlet valve 262 may control the inflow of the coolant CW provided to the second adsorption/desorption unit 220 .

The first coolant outlet valve 265 may be disposed between the third switch line 63 and the second coolant line 32 connected to the first adsorption/desorption unit 210 . That is, the coolant CW discharged from the first adsorption/desorption unit 210 is sequentially connected to the third switch line 63 , the first coolant outlet valve 265 , and the second coolant line 32 . can be discharged through In addition, the first coolant outlet valve 265 may control the outflow of the coolant CW discharged from the first adsorption/desorption unit 210 .

The second coolant outlet valve 266 may be disposed between the fourth switch line 64 and the second coolant line 32 connected to the second adsorption/desorption unit 220 . That is, the coolant CW discharged from the second adsorption/desorption unit 220 is sequentially connected to the fourth switch line 64 , the second coolant outlet valve 266 , and the second coolant line 32 . can be discharged through In addition, the second coolant outlet valve 266 may control the outflow of the coolant CW discharged from the second adsorption/desorption unit 220 .

The first heated water inlet valve 263 may be disposed between the first heated water line 41 and the first switch line 61 connected to the first adsorption/desorption unit 210 . That is, the heated water HW introduced from the outside passes through the first heated water line 41 , the first heated water inlet valve 263 , and the first switch line 61 in sequence, and the first It may be provided in the adsorption/desorption unit 210 . In addition, the first heated water inlet valve 263 may control the inflow of the heated water (HW) provided to the first adsorption/desorption unit 210 .

The second heated water inlet valve 264 may be disposed between the first heated water line 41 and the second switch line 62 connected to the second adsorption/desorption unit 220 . That is, the heated water HW introduced from the outside passes through the first heated water line 41 , the second heated water inlet valve 264 , and the second switch line 62 in sequence, and the second It may be provided in the adsorption/desorption unit 220 . In addition, the second heated water inlet valve 264 may control the inflow of the heated water (HW) provided to the second adsorption/desorption unit 220 .

The first heated water outlet valve 267 may be disposed between the third switch line 63 and the second heated water line 42 connected to the first adsorption/desorption unit 210 . That is, the heated water (HW) discharged from the first adsorption/desorption unit 210 is the third switch line 63 , the first heated water outlet valve 267 , and the second heated water line 42 . may be discharged sequentially. In addition, the first heated water outlet valve 267 may control the outflow of the heated water (HW) discharged from the first adsorption/desorption unit 210 .

The second heated water outlet valve 268 may be disposed between the fourth switch line 64 and the second heated water line 42 connected to the second adsorption/desorption unit 220 . That is, the heated water (HW) discharged from the second adsorption/desorption unit 220 is the fourth switch line 64 , the second heated water outlet valve 268 , and the second heated water line 42 . may be discharged sequentially. In addition, the second heated water outlet valve 268 may control the outflow of the heated water (HW) discharged from the second adsorption/desorption unit 220 .

According to an embodiment, the first and second adsorption/desorption units 210 and 220 may perform adsorption or desorption opposite to each other. For example, while the first adsorption/desorption unit 210 performs adsorption, the second adsorption/desorption unit 220 may perform desorption. To this end, the first and second steam inlet valves 251 and 252, the first and second steam outlet valves 253 and 254, the first and second coolant inlet valves 261 and 262, the first The first and second heated water inlet valves 263 and 264, the first and second coolant outlet valves 265 and 266, and the first and second heated water outlet valves 267 and 268 may be controlled, respectively. . Hereinafter, with reference to FIGS. 8 to 14 , the opposite operation process of the first and second adsorption/desorption units 210 and 220 will be described.

8 to 10 are views showing the opposite operation process of the first and second adsorption/desorption unit in the adsorption/desorption module included in the seawater-desalination device according to an embodiment of the present invention.

Referring to FIG. 8 , the mixed vapor may be provided to the first adsorption/desorption unit 210 through the fifth heat source line 25 . In this case, the adsorption reaction may be performed by the adsorbent AD in the first adsorption/desorption unit 210 . As described above, when the adsorption reaction is performed, in order to reduce the temperature of the adsorbent AD of the first adsorption/desorption unit 210 , the cooling water CW is supplied through the first cooling water line 31 . can be imported. The cooling water CW flows through the first cold/hot flow path 212 , and may reduce the temperature of the adsorbent AD of the first adsorption/desorption unit 210 . Accordingly, the mixed vapor may be easily adsorbed to the adsorbent AD of the first adsorption/desorption unit 210 .

While the adsorption reaction is performed in the first adsorption/desorption unit 210 , the desorption reaction may be performed in the second adsorption/desorption unit 220 . To this end, the heated water HW may be introduced through the first heated water line 41 . The heated water HW flows through the second cold/hot flow path 214 , and may increase the temperature of the adsorbent AD of the second adsorption/desorption unit 220 . Accordingly, in the second adsorption/desorption unit 220 , the mixed vapor is desorbed from the adsorbent AD, and the desorbed mixed vapor may be provided to the condenser 230 .

As a result, when the adsorption reaction is performed in the first adsorption/desorption unit 210, the desorption reaction may be performed in the second adsorption/desorption unit 220. To this end, the first steam inlet valve 251 , the second steam outlet valve 254 , the first coolant inlet valve 261 , the first coolant outlet valve 265 , and the second heated water inlet valve 264 , and the second heated water outlet valve 268 is opened, and the second steam inlet valve 252 , the first steam outlet valve 253 , the second coolant inlet valve 262 , the second The first heated water inlet valve 263 , the second cooling water outlet valve 266 , and the first heated water outlet valve 267 may be closed.

Referring to FIG. 9 , after the adsorption reaction is performed in the first adsorption/desorption unit 210 , the heated water HW may be introduced through the first heated water line 41 . The heated water HW flows through the first cold and hot flow path 212 , and may increase the temperature of the first adsorption/desorption unit 210 . Accordingly, a desorption reaction may be performed in the first adsorption/desorption unit 210 . In this case, in the first adsorption/desorption unit 210 , the mixed vapor is desorbed from the adsorbent AD, and the desorbed mixed vapor may be provided to the condenser 230 .

When the desorption reaction is performed in the first adsorption/desorption unit 210 , the mixed vapor may be provided to the second adsorption/desorption unit 220 through the fifth heat source line 25 . In this case, the adsorption reaction may be performed by the adsorbent AD in the second adsorption/desorption unit 220 . As described above, when the adsorption reaction is performed, in order to reduce the temperature of the adsorbent AD of the second adsorption/desorption unit 220 , the cooling water CW is supplied through the first cooling water line 31 . can be imported. The cooling water CW flows through the second cold/hot flow path 214 , and may reduce the temperature of the adsorbent AD of the second adsorption/desorption unit 220 .

That is, while the desorption reaction is performed in the first adsorption/desorption unit 210 , the adsorption reaction may be performed in the second adsorption/desorption unit 220 . In addition, the cooling water (CW) is provided to the condenser 230 , and desalination reaction of condensing the mixed vapor into high-purity fresh water may be performed.

As a result, when the desorption reaction is performed in the first adsorption/desorption unit 210 and the adsorption reaction is performed in the second adsorption/desorption unit 220, the second vapor inlet valve 252, the first vapor The outlet valve 253 , the second coolant inlet valve 262 , the first heated water inlet valve 263 , the second coolant outlet valve 266 , and the first heated water outlet valve 267 are all opened. , the first steam inlet valve 251 , the second steam outlet valve 254 , the first coolant inlet valve 261 , the second heated water inlet valve 264 , and the first coolant outlet valve 265 . ), the second heated water outlet valve 268 may be all closed.

Referring to FIG. 10 , after the adsorption reaction is performed in the second adsorption/desorption unit 220 , the heated water HW may be introduced through the first heated water line 41 . The heated water HW flows through the second cold and hot flow path 214 , and may increase the temperature of the second adsorption/desorption unit 220 . Accordingly, in the second adsorption/desorption unit 220 , the mixed vapor is desorbed from the adsorbent AD, and the desorbed mixed vapor may be provided to the condenser 230 .

When the desorption reaction is performed in the second adsorption/desorption unit 220 , the mixed vapor may be provided back to the first adsorption/desorption unit 210 through the fifth heat source line 25 . In this case, the adsorption reaction may be performed by the adsorbent AD in the first adsorption/desorption unit 210 . As described above, when the adsorption reaction is performed in the first adsorption/desorption unit 210 , the cooling water CW may be introduced through the first cooling water line 31 . The cooling water CW flows through the first cold/hot flow path 212 , and may reduce the temperature of the adsorbent AD of the first adsorption/desorption unit 210 .

That is, while the desorption reaction is performed in the second adsorption/desorption unit 220 , the adsorption reaction may be performed in the first adsorption/desorption unit 210 . In addition, the cooling water (CW) is provided to the condenser 230, and desalination reaction of condensing the mixed vapor into high-purity fresh water may be performed.

As a result, when the desorption reaction is performed in the second adsorption/desorption unit 220, and the adsorption reaction is performed in the first adsorption/desorption unit 210, the first vapor inlet valve 251, the second vapor The outlet valve 254 , the first coolant inlet valve 261 , the second heated water inlet valve 264 , the first coolant outlet valve 265 , and the second heated water outlet valve 268 are all opened. , the second steam inlet valve 252 , the first steam outlet valve 253 , the second coolant inlet valve 262 , the first heated water inlet valve 263 , and the second coolant outlet valve 266 . ), the first heated water outlet valve 267 may be closed.

Thereafter, the adsorption and desorption reactions in the first and second adsorption and desorption units 210 and 220 may be alternately and repeatedly performed. Accordingly, the seawater-desalination apparatus according to the embodiment may increase the total amount of high-purity fresh water that can be finally produced. In addition, even when a problem occurs in the adsorption/desorption unit, there is an advantage that can be continued without stopping the process.

Seawater according to an embodiment of the present invention - The desalination device evaporates seawater _{to generate the first steam (VP 1} ) from the seawater from the first steam generator 110 , the first steam generator 110 . receiving providing the first vapor (VP _1), the first evaporating the vapor (VP ₁₎ sea water (SW) by using as the heat source for second steam generator 120 for generating the second vapor (VP ₂₎ , and the second vapor from the generator 120 receives provide said second vapor (VP _2), using the second steam (VP ₂₎ as a heat source to evaporate the sea water (SW) and the third steam (VP ₃ ) Concentration module 170 for generating the concentrated seawater using the evaporation module 100, the adsorption module 200, and the third vapor (VP _{3 ) including a third vapor generator 130 for generating} , and the first and second adsorption and desorption units 210 and 220 for adsorbing or desorbing the mixed vapor by receiving the mixed vapor, and the first and second adsorption and desorption units 210 and 220 desorbed from It may include the adsorption/desorption module 200 including the condenser 230 for condensing the mixed vapor to generate high-purity fresh water (fresh water). Accordingly, it is possible to not only produce high-purity fresh water by using a small amount of energy, but also to provide a seawater-desalination device with improved high-purity fresh water production.

Above, seawater according to an embodiment of the present invention - a desalination device has been described. Hereinafter, seawater according to an embodiment of the present invention - a desalination method will be described.

11 and 12 are flow charts illustrating a seawater-desalination method according to an embodiment of the present invention. According to an embodiment, the seawater-desalination method may be performed through the seawater-desalination device described with reference to FIGS. 1 to 10 . Hereinafter, in describing the seawater-desalination method, the seawater-desalination apparatus according to the embodiment is used.

According to an embodiment, the seawater-desalination method may include a steam generating step (S110, S120, S130), and a freshwater generating step (S200). Referring to FIG. 11 , the steam generation step includes a first steam generation step (S110), a second steam generation step (S120), a third steam generation step (S130), and a seawater concentration generation and fluid cooling step (S140). may include

Specifically, in the first steam generating step (S110), the seawater may be evaporated by using a temperature difference between seawater (SW) and a heat source (HS) to generate the first steam. According to an embodiment, the first steam generating step ( S110 ) may include supplying a heat source into a first heat source flow path through which the heat source moves, and spraying seawater onto the first heat source flow path. That is, when the heated seawater is sprayed onto the first heat source flow path, as the seawater evaporates around the first heat source flow path, the first steam may be formed.

In the second steam generating step (S120), the first steam generated in the first steam generating step is provided, and the seawater is evaporated by using the temperature difference between the first steam and seawater to produce a second steam can create According to an embodiment, the second steam generating step (S120) includes supplying the first steam into a second heat source flow path through which the first steam moves, and spraying seawater onto the second heat source flow path. can do. That is, when the heated seawater is sprayed onto the second heat source flow path, as the seawater evaporates around the second heat source flow path, the second steam may be formed.

In the third steam generating step (S130), the second steam generated in the second steam generating step is provided, and the second steam and the seawater are evaporated using the temperature difference between the seawater, and the third steam is produced. can create According to an embodiment, the third steam generating step (S130) includes supplying the second steam into a third heat source flow path through which the second steam is moved, and spraying seawater onto the third heat source flow path. can do. That is, when the heated seawater is sprayed onto the third heat source flow path, as the seawater evaporates around the third heat source flow path, the third steam may be formed.

According to an embodiment, the first to third steam generating steps ( S110 , S120 , S130 ) may further include first to third seawater collection steps, respectively. In the first seawater collection step, seawater remaining after the first steam is generated may be collected. In the second seawater collection step, seawater remaining after the second steam is generated may be collected. In the third seawater collection step, seawater remaining after the third steam is generated may be collected. The seawater collected in the first to third seawater collection steps may be reused for generating the first steam in the first steam generating step S110.

In addition, the steam generating step may further include a steam circulation step of supplying the third steam into the first heat source flow path after the third steam generating step (S130) and before the fresh water generating step (S200). . That is, the steam finally generated in the steam generating step may be reused as a heat source for heating the seawater in the first steam generating step.

In addition, in the concentrated seawater generation and fluid cooling step (S140), as described with reference to FIGS. 1 and 2, in the concentration module, seawater in the first to third steam generation steps (S110, S120, S130) The seawater remaining after is evaporated may be re-evaporated using the vapor adsorption power of the adsorbent in the vapor adsorption step to be described later to produce concentrated seawater. When the concentrated seawater is circulated and supplied to the concentration module and evaporated again to increase the concentration of the concentrated seawater above the reference concentration, the concentrated seawater may be discharged to the outside. In addition, as described with reference to FIGS. 1 and 2 by using the heat of evaporation according to the re-evaporation of the remaining seawater, the fluid may be cooled, and the cooled fluid may be utilized for cooling.

12, the fresh water generating step (S200) is a third steam supply step (S210), a mixed vapor adsorption step (S220) in a first adsorption/desorption unit, a first adsorption/desorption unit desorbing the mixed vapor, and a second Adsorbing the mixed vapor in the adsorption/desorption unit (S230), the first fresh water generation step (S240), desorbing the mixed vapor in the second adsorption/desorption unit and adsorbing the mixed vapor in the first adsorption/desorption unit (S250) ), and a second fresh water generation step (S260).

Specifically, in the mixed steam supply step (S210), the third steam generated in the third steam generation step (S130) and/or the remaining seawater generated in the seawater concentration and fluid cooling step (S140) re- The evaporated vapor may be provided to the first adsorption/desorption unit. Thereafter, in the first adsorption/desorption unit, the third vapor and/or the remaining seawater may adsorb the re-evaporated vapor (hereinafter, mixed vapor) through the adsorbent (S220). In this case, the cooling water may be introduced into the first cold/hot flow path disposed inside the first adsorption/desorption unit and through which the cooling water or heated water is moved, thereby reducing the temperature of the adsorbent whose temperature is increased during the adsorption reaction.

After the adsorption reaction is performed in the first adsorption/desorption unit, the desorption reaction may be performed in the first adsorption/desorption unit (S230). In this case, heated water may be introduced into the first cold/hot flow passage to increase the temperature of the adsorbent that has absorbed the mixed vapor. On the other hand, while the desorption reaction is performed in the first adsorption/desorption unit, the adsorption reaction may be performed in the second adsorption/desorption unit (S230). In this case, the cooling water may be introduced into the second cold/hot flow passage disposed inside the second adsorption/desorption unit and through which the cooling water or the heated water is moved to reduce the temperature of the adsorbent. The mixed vapor desorbed in the first adsorption/desorption unit may be condensed to produce fresh water (S240).

Subsequently, the adsorption reaction may be performed again in the first adsorption/desorption unit in which the desorption reaction was performed, and the desorption reaction may be performed in the second adsorption/desorption unit in which the adsorption reaction was performed (S250). Thereafter, the mixed vapor desorbed in the second adsorption/desorption unit may be condensed to produce fresh water (S260). According to an embodiment, the steps S230, S240, S250, and S260 may be sequentially and repeatedly performed. That is, the first and the second adsorption and desorption unit performs the adsorption and desorption process opposite to each other, the adsorption and desorption process may be alternately and repeatedly performed.

According to an embodiment, the third steam generating step may be omitted. Specifically, the seawater-desalination method is a first steam generating step of evaporating seawater to generate a first steam by using a temperature difference between seawater and a heat source, receiving the first steam, the first steam and seawater A second steam generating step of evaporating seawater to generate a second steam using the temperature difference between the first and second steam generating steps, re-evaporating the remaining seawater after seawater is evaporated to produce concentrated seawater, Concentrated seawater generation and fluid cooling step of cooling the fluid using the evaporation heat from which the concentrated seawater is re-evaporated, the second steam and/or the remaining seawater is provided with re-evaporated steam (hereinafter, mixed steam) through the adsorbent A vapor adsorption step of adsorbing the mixed vapor, a vapor desorption step of desorbing the mixed vapor from the adsorbent to which the mixed vapor is adsorbed, and a fresh water generation step of receiving and condensing the desorbed mixed vapor to produce fresh water can

As above, hybrid seawater according to an embodiment of the present invention - a desalination apparatus and method have been described. Hereinafter, a hybrid seawater-desalination device according to a modified example of the present invention will be described.

13 is a diagram illustrating a hybrid seawater-desalination device according to a first modification of the present invention, and FIG. 14 is a diagram illustrating a seawater supply module included in a hybrid seawater-desalination device according to a first modification of the present invention.

13 and 14 , the hybrid seawater-desalination device according to the first modified example of the present invention includes an evaporation module 100 , a concentration module 170 , an adsorption/desorption module 200 , and a seawater supply module 300 . ) may be included. The evaporation module 100, the concentration module 170, and the adsorption/desorption module 200 are the hybrid seawater according to the embodiment described with reference to FIGS. 1 to 5 - The evaporation module included in the desalination device (100), the concentration module 170, and the adsorption/desorption module 200 may be the same. Accordingly, a detailed description is omitted.

The seawater supply module 300 includes a seawater storage tank 310 , a cooler 320 , a separator 330 , a washer 340 , a heat treatment unit 350 , a freshwater storage tank 360 , and a refrigerant. It may include a regenerator 370 . Hereinafter, each configuration will be specifically described.

Seawater may be stored in the seawater storage tank 310 . The seawater discharged from the seawater storage tank 310 may be provided to the first circulation pump 160 and the cooler 320 included in the evaporation module 100 . To this end, the seawater storage tank 310 , the cooler 320 , and the first circulation pump 160 may be connected through a first flow path 71 . _{In addition, a first valve V 1} is disposed between the seawater storage tank 310 and the cooler 320 , and a second valve V 1 is disposed between the seawater storage tank 310 and the first circulation pump 160 . A valve (V ₂ ) may be disposed. Accordingly, by controlling the first valve (V ₁ ) and the second valve (V ₂ ), the seawater flowing out from the seawater storage tank 310, the cooler 320 and the first circulation pump ( 160), and the flow rate of the seawater provided to the cooler 320 and the first circulation pump 160 may be controlled.

_{According to an embodiment, a first pump P 1} may be disposed between the first and second valves V ₁ and V ₂ and the seawater storage tank 310 . Accordingly, the flow rate of the seawater flowing out from the seawater storage tank 310 may be controlled through _{the first pump P 1 .}

The cooler 320 may receive the seawater from the seawater storage tank 310 to cool at least a portion of the seawater. In this case, the seawater may be a solid and liquid mixed phase, for example, a slurry state. Specifically, when the seawater is cooled, the water (H ₂ O) component included in the seawater is frozen in a solid state, but ion substances included in the seawater may remain in a liquid state. Accordingly, it may represent a phase in which fresh water (solid) and seawater (liquid) in an ice state are mixed. According to an embodiment, the seawater may be cooled through a refrigerant disposed inside the cooler 320 .

The seawater cooled in the cooler 320 may flow out from the cooler 320 and be provided to the separator 330 . In addition, the refrigerant used for cooling the seawater may flow out from the cooler 320 and be provided to the refrigerant regenerator 370 .

According to an embodiment, the cooler 320 may include a first cooler inlet 320a, a first cooler outlet 320b, a second cooler outlet 320c, and a second cooler inlet 320d.

The first cooler inlet 320a may be connected to the first flow path 71 to introduce the seawater provided from the seawater storage tank 310 . The first cooler outlet 320b may be connected to the second flow path 72 to provide the seawater flowing out from the cooler 320 to the separator 330 . The second cooler outlet 320c may be connected to the seventh flow path 77 to provide the refrigerant flowing out from the cooler 320 to the refrigerant regenerator 370 . The second cooler inlet 320d is connected to the eighth flow path 78 so that the refrigerant provided from the refrigerant regenerator 370 may be introduced.

The separator 330 may separate the seawater provided from the cooler 320 . As described above, the seawater flowing out from the cooler 320 may represent a mixed phase of fresh water (solid) in an ice state and seawater (liquid). Accordingly, the separator 330 may separate the seawater into fresh water (solid) and seawater (liquid) in an ice state, respectively.

The seawater separated from the separator 330 may be provided to the seawater storage tank 310 through a 4-1 seawater flow path 74a. The seawater provided to the seawater storage tank 310 may be provided to the cooler 320 or the first circulation pump 160 as described above. That is, the seawater may be circulated.

The fresh water in the ice state separated from the separator 330 may be provided to the washer 340 through the third flow path 73 . The fresh water in the ice state provided to the washer 340 may be washed. According to an embodiment, the washer 340 may include a washing liquid spray passage 342 . The cleaning liquid spray passage 342 may provide a movement path of the cleaning liquid sprayed into the washer 340 . For example, the washing solution may be fresh water.

That is, the fresh water in the ice state provided to the inside of the washer 340 may be washed through the washing solution sprayed from the washing solution spray passage 342 . In this case, some of the fresh water in the icy state may melt. The solution generated by melting fresh water in the ice state may be provided to the seawater storage tank 310 through the 4-2 seawater flow path 74 . On the other hand, after the washing process in the washer 340 , the fresh water in the ice state may be provided to the heat treatment unit 350 through the fifth flow path 75 .

According to an embodiment, the washer 340 may include a first washer inlet 340a, a first washer outlet 340b, a second washer outlet 340c, and a second washer inlet 340d. .

The first washer inlet 340a may be connected to the third flow path 73 to provide fresh water in an ice state flowing out from the separator 330 to the washer 340 . The first washer outlet 340b may be connected to the 4-2 seawater flow path 74b to provide a solution generated by melting ice-state fresh water flowing out from the washer to the seawater storage tank 310 . The second washer outlet 340c may be connected to the fifth flow path 75 to provide fresh water in the ice state flowing out of the washer to the heat treatment unit 350 . The second washer inlet 340d may be connected to the sixth flow path 76 to provide fresh water flowing out from the heat treatment unit 350 to the washer 340 .

The heat treatment unit 350 may melt fresh water in an ice state to generate fresh water in a liquid state. According to an embodiment, the heat treatment unit 350 may include a flow path 352 , a seawater supply unit 356 , and a seawater collection unit 354 . The flow path 352 may be disposed inside the heat treatment unit 350 to heat-treat fresh water in an ice state provided inside the heat treatment unit 350 . Accordingly, fresh water in an ice state may be melted to generate fresh water in a liquid state. The seawater supply unit 356 and the seawater collection unit 354 may be disposed outside the heat treatment unit 350 to be connected to the flow path 352 . The seawater supply unit 356 may supply seawater SW to the flow path 352 , and the supplied seawater SW may exchange heat with fresh water in an ice state to decrease the temperature. The seawater SW having the temperature lowered may be collected in the seawater collection unit 354 , some may be discharged to the outside, and the remaining portion may be supplied to the seawater storage tank 310 . In other words, a large amount of seawater (SW) is provided to the seawater supply unit 356, so that the temperature drop of the seawater (SW) can be minimized, and the amount required to be supplied to the seawater storage tank 310 is exceeded. The seawater SW may be discharged to the outside.

The fresh water generated from the heat treatment unit 350 may be provided to the washing liquid spray passage 342 or the fresh water storage tank 360 included in the washer 340 . To this end, the heat treatment unit 350 , the washer 340 , and the fresh water storage tank 360 may be connected through a sixth seawater flow path. _{In addition, a third valve (V 3} ) is disposed between the heat treatment device ( 350 ) and the washer ( 340 ) _{, and a fourth valve ( V 4} ) between the heat treatment device ( 350 ) and the fresh water storage tank ( 360 ). can be placed. Accordingly, by controlling any one of the third valve (V ₃ ) or the fourth valve (V ₄ ), the fresh water generated from the heat treatment unit 350 is stored in the washer 340 or the fresh water storage tank Any one of (360) may be provided.

_{According to an embodiment, a second pump P 2} may be disposed between the third and fourth valves V ₃ and V ₄ and the heat treatment unit 350 . Accordingly, the flow rate of the fresh water discharged from the heat treatment unit 350 may be controlled through _{the second pump P 2 .}

According to an embodiment, the heat treatment unit 350 includes a first heat treatment unit inlet 350a, a first heat treatment unit outlet 350b, a second heat treatment unit inlet 350c, and a second heat treatment unit outlet 350d. may include

The first heat treatment unit inlet 350a is connected to the fifth flow path 75 , so that fresh water flowing out of the washer 340 and remaining in the ice state may be introduced. The first heat treatment unit outlet 350b is connected to the sixth flow path 76 , so that the fresh water generated from the heat treatment unit 350 may flow out. The second heat treatment unit inlet 350c may communicate with one end of the heat source flow path 352 , and one end of the communicated heat source flow path 352 may be connected to the heat source providing unit 354 . The second heat treatment unit outlet 350d may communicate with the other end of the heat source flow path 352 , and the other end of the communicated heat source flow path 352 may be connected with the heat source collector 356 .

The refrigerant regenerator 370 may receive the refrigerant from the cooler 320 through a seventh flow path 77 . The refrigerant regenerator may reduce the temperature of the refrigerant to regenerate the refrigerant. The regenerated refrigerant may flow out from the refrigerant regenerator 370 and be provided back to the cooler 320 through the eighth flow path 78 .

According to an embodiment, the refrigerant regenerator 370 may include a cooling passage 372 , a coolant providing unit 374 , and a coolant collecting unit 376 . The cooling passage 372 may be disposed inside the refrigerant regenerator 370 to cool the refrigerant provided in the refrigerant regenerator 370 . Accordingly, the refrigerant can be regenerated. The coolant providing part 374 and the coolant collecting part 376 may be disposed outside the coolant regenerator 370 so as to be connected to the cooling passage 372 . The coolant providing unit 374 may supply a coolant to the cooling passage 372 . The coolant collecting unit 376 may collect the coolant flowing out from the cooling passage 372 .

According to an embodiment, the refrigerant regenerator 370 includes a first refrigerant regenerator inlet 370a, a first refrigerant regenerator outlet 370b, a second refrigerant regenerator inlet 370c, and a second refrigerant regenerator outlet 370d. may include

The first refrigerant regenerator inlet 370a may be connected to the seventh flow path 77 to introduce the refrigerant leaked from the cooler 320 . The first refrigerant regenerator outlet 370b may be connected to the eighth flow path 78 to discharge the refrigerant regenerated from the refrigerant regenerator 370 . The second refrigerant regenerator inlet 370c may be in communication with one end of the cooling passage 372 , and one end of the communicating cooling passage 372 may be connected to the coolant providing unit 374 . The second refrigerant regenerator outlet 370d may be in communication with the other end of the cooling passage 372 , and the other end of the communicating cooling passage 372 may be connected to the coolant collecting unit 376 .

15 is a diagram illustrating a hybrid seawater-desalination device according to a second modification of the present invention, and FIG. 16 is a diagram illustrating a seawater supply module included in a hybrid seawater-desalination device according to a second modification of the present invention.

15 and 16 , the hybrid seawater according to the second modified example of the present invention - the desalination device, the evaporation module 100, the concentration module 170, the adsorption/desorption module 200, and the seawater supply module 400 ) may be included. The hybrid seawater according to the embodiment may be the same as the evaporation module 100, the concentration module 170, and the adsorption/desorption module 200 included in the desalination device. Accordingly, a detailed description is omitted.

The seawater supply module 400 may include a seawater storage tank 410 , a cooler 420 , a heat treatment unit 430 , a freshwater storage tank 440 , and a refrigerant regenerator 450 . Hereinafter, each configuration will be specifically described.

Seawater may be stored in the seawater storage tank 410 . The seawater discharged from the seawater storage tank 410 may be provided to the first circulation pump 160 and the cooler 420 included in the evaporation module 100 . To this end, the seawater storage tank 410 , the cooler 420 , and the first circulation pump 160 may be connected through a first flow path 81 . _{In addition, a first valve (V 1} ) is disposed between the seawater storage tank 410 and the cooler 420, and between the seawater storage tank 410, and the extrusion pump 160, a second valve ( V ₂ ) may be disposed. Accordingly, by controlling the first valve (V ₁ ) and the second valve (V ₂ ), the seawater flowing out from the seawater storage tank 410, the cooler 420 and the first circulation pump ( 160), and the flow rate of the seawater provided to the cooler 420 and the first circulation pump 160 may be controlled.

_{According to an embodiment, a first pump P 1} may be disposed between the first and second valves V ₁ and V ₂ and the seawater storage tank 410 . Accordingly, the flow rate of the seawater flowing out from the seawater storage tank 410 may be controlled through _{the first pump P 1 .}

The cooler 420 may receive the seawater from the seawater storage tank 410 to cool at least a portion of the seawater. According to an embodiment, the cooler 420 may include a seawater storage unit 422 and a seawater spray unit 424 . The seawater storage unit 422 may receive and store the seawater provided from the seawater storage tank 410 . The stored seawater may be provided to the seawater spraying unit 424 . The seawater spraying unit 424 may spray the seawater to the sidewall of the cooler 420 . A refrigerant may be provided on a sidewall of the cooler 420 . Accordingly, the seawater sprayed to the sidewall of the cooler 420 may be cooled.

When the seawater is cooled, the seawater may represent a phase in which a solid and a liquid are mixed. Specifically, when the seawater is cooled, the water (H ₂ O) component contained in the seawater is frozen in a solid flake state, but the ion materials contained in the seawater may remain in a liquid state. there is. The seawater may be frozen at the sidewall of the cooler 420 to which the refrigerant is provided, and fresh water in a solid flake state may be provided to the sidewall of the cooler 420 .

The cooler 420 may separate and discharge fresh water (solid) and seawater (liquid) in an ice state. The fresh water in the ice state flowing out from the cooler 420 may be provided to the heat treatment unit 430 . On the other hand, the seawater discharged from the cooler 420 may be provided to the seawater storage tank 410 . In addition, the refrigerant used for cooling the seawater may flow out from the cooler 420 and be provided to the refrigerant regenerator 450 .

According to an embodiment, the cooler 420 may include a first cooler outlet 420a, a second cooler outlet 420b, a third cooler outlet 420c, and a first cooler inlet 420d.

The first cooler outlet 420a may be connected to the second flow path 82 to provide the seawater discharged from the cooler 420 to the seawater storage tank 410 . The second cooler outlet 420b may be connected to the third flow path 83 to provide the fresh water in the ice state flowing out from the cooler 420 to the heat treatment unit 430 . The third cooler outlet 420c may be connected to the fifth flow path 85 to provide the refrigerant flowing out from the cooler 420 to the refrigerant regenerator 470 . The first cooler inlet 420d may be connected to the sixth flow path 86 to introduce the refrigerant provided from the refrigerant regenerator 470 .

The heat treatment unit 430 may melt fresh water in an ice state to generate fresh water in a liquid state. According to an embodiment, the heat treatment unit 430 may include a flow path 432 , a seawater collection unit 434 , and a seawater supply unit 436 . The flow path 432 may be disposed inside the heat treatment unit 430 to heat-treat fresh water in an ice state provided inside the heat treatment unit 430 . Accordingly, fresh water in an ice state may be melted to generate fresh water in a liquid state. The seawater collection unit 434 and the seawater supply unit 436 may be disposed outside the heat treatment unit 430 to be connected to the flow path 432 . The seawater supply unit 436 may supply seawater SW to the flow path 432 , and the supplied seawater SW may exchange heat with fresh water in an ice state to lower the temperature. The seawater (SW) of which the temperature is lowered may be collected by the seawater collection unit 434 , some may be discharged to the outside, and the remaining part may be supplied to the seawater storage tank 410 . In other words, a large amount of seawater (SW) is provided to the seawater supply unit 436, so that the temperature drop of the seawater (SW) can be minimized, and the amount required to supply the seawater storage tank 410 is exceeded. The seawater SW may be discharged to the outside.

According to an embodiment, the heat treatment unit 430 includes a first heat treatment unit inlet 430a, a first heat treatment unit outlet 430b, a second heat treatment unit inlet 430c, and a second heat treatment unit outlet 430d. may include

The first heat treatment unit inlet 430a is connected to the third flow path 83 , so that fresh water in an ice state flowing out of the cooler 430 may be introduced. The first heat treatment unit outlet 430b is connected to the fourth flow path 84 , so that the fresh water generated from the heat treatment unit 430 may flow out. The second heat treatment unit inlet 430c may communicate with one end of the heat source flow path 432 , and one end of the connected heat source flow path 432 may be connected to the heat source providing unit 434 . The second heat treatment unit outlet 430d may communicate with the other end of the heat source flow path 432 , and the other end of the communicated heat source flow path 432 may be connected with the heat source collector 436 .

The refrigerant regenerator 450 may receive the refrigerant from the cooler 420 through the fifth flow path 85 . The refrigerant regenerator may reduce the temperature of the refrigerant to regenerate the refrigerant. The regenerated refrigerant may flow out from the refrigerant regenerator 450 and be provided back to the cooler 420 through the sixth flow path 86 .

According to an embodiment, the refrigerant regenerator 450 may include a cooling passage 452 , a coolant providing unit 454 , and a coolant collecting unit 456 . The cooling passage 452 may be disposed inside the refrigerant regenerator 450 to cool the refrigerant provided in the refrigerant regenerator 450 . Accordingly, the refrigerant can be regenerated. The coolant providing part 454 and the coolant collecting part 456 may be disposed outside the coolant regenerator 450 to be connected to the cooling passage 452 . The coolant providing unit 454 may supply a coolant to the cooling passage 452 . The coolant collecting unit 456 may collect the coolant flowing out from the cooling passage 452 .

According to an embodiment, the refrigerant regenerator 450 includes a first refrigerant regenerator inlet 450a, a first refrigerant regenerator outlet 450b, a second refrigerant regenerator inlet 450c, and a second refrigerant regenerator outlet 450d. may include

The first refrigerant regenerator inlet 450a may be connected to the fifth flow path 85 to introduce the refrigerant leaked from the cooler 420 . The first refrigerant regenerator outlet 450b may be connected to the sixth flow path 86 to discharge the refrigerant regenerated from the refrigerant regenerator 450 . The second refrigerant regenerator inlet 450c may be in communication with one end of the cooling passage 452 , and one end of the communicating cooling passage 452 may be connected to the coolant providing unit 454 . The second refrigerant regenerator outlet 450d may be in communication with the other end of the cooling passage 452 , and the other end of the communicating cooling passage 452 may be connected to the coolant collecting unit 456 .

_{According to an embodiment, a second pump P 2} may be disposed between the second refrigerant regenerator outlet 450d and the third cooler outlet 420c. Accordingly, the flow rate of the refrigerant flowing out from the refrigerant regenerator may be controlled through _{the second pump P 2 .}

As mentioned above, although the present invention has been described in detail using preferred embodiments, the scope of the present invention is not limited to specific embodiments and should be construed according to the appended claims. In addition, those skilled in the art will understand that many modifications and variations are possible without departing from the scope of the present invention.

100: evaporation module
110: first steam generator
120: second steam generator
130: third steam generator
140: thermocompressor
150: fresh water storage tank
160: first circulation pump
170: enrichment module
176: second circulation pump
200: adsorption and desorption module
210: first adsorption and desorption unit
220: second adsorption and desorption unit
230: condenser
240: high purity fresh water storage tank

Claims (10)

A first steam generator for evaporating the target water to generate a first steam from the target water, receiving the first steam from the first steam generator and evaporating the target water by using the first steam as a heat source a second steam generator generating 2 steam, and a third steam generator receiving the second steam from the second steam generator and evaporating the water to be treated by using the second steam as a heat source to generate a third steam configured evaporation module;
By receiving the second vapor from the second vapor generator, adsorbing or desorbing the second vapor and using alumina as an adsorber, and condensing the second vapor desorbed in the adsorption/desorption unit to treat water Adsorption and desorption module comprising a condenser to generate; and
After the target water is evaporated in the evaporation module, the remaining target water is supplied, connected to the adsorption/desorption unit of the adsorption/desorption module, and the remaining target water is recovered by vapor adsorption power by the adsorption operation of the adsorption/desorption unit. Containing a concentration module that evaporates to produce concentrated water,
The first steam generator,
a first heat source flow path providing a path through which a heat source introduced from the outside moves;
a first injection passage providing a path through which the water to be treated is introduced, and injecting the water to be treated to the first heat source flow path to generate the evaporated first vapor by heat-exchanging the water to be treated with the heat source in the first heat source flow path;
a first vapor collection passage that collects the first vapor and provides a path through which the collected first vapor moves, and provides the collected first vapor to the second vapor generator; and
and a first collection flow path for collecting the target water that is evaporated and the remaining target water sprayed to the first injection flow path, and providing the remaining target water to a second steam generator,
The second steam generator,
a second heat source flow path through which the first steam provided from the first steam collection flow path of the first steam generator is introduced to provide a path through which the first steam moves;
A second injection providing a path through which the target water flows, and injecting the target water into the second heat source flow path to generate the second steam evaporated by heat exchange with the first steam in the second heat source flow path. Euro;
a second vapor collection passage that collects the second vapor and provides a path through which the second vapor moves; and
and a second collection flow path for collecting the remaining target water after evaporation of the target water sprayed to the second injection flow path and providing the remaining target water to a third steam generator,
The third steam generator,
a third heat source flow path through which the second steam provided from the second steam collection flow path of the second steam generator is introduced to provide a path through which the second steam moves;
A third injection providing a path through which the target water flows, and injecting the target water into the third heat source flow path to generate the third steam evaporated by heat exchange with the second steam in the third heat source flow path. Euro;
a third vapor collection passage that collects the third vapor and provides a path through which the third vapor moves; and
and a third collection flow path for collecting the remaining target water after evaporation of the target water sprayed to the third injection flow path and providing the remaining target water to a circulation pump.
According to claim 1,
The hybrid water treatment device comprising that the heat source provided to the first heat source flow path is fresh water or steam.
According to claim 1,
The first to third steam generators, respectively, include first to third fresh water storage tanks,
The first to third freshwater storage tanks, respectively, are hybrid water treatment apparatus comprising a connection to the first to third heat source flow path.
4. The method of claim 3,
The first fresh water storage tank is a hybrid water treatment device comprising storing the fresh water condensed by the heat source through heat exchange with the water to be treated.
4. The method of claim 3,
The second fresh water storage tank is a hybrid water treatment device comprising storing fresh water in which the first vapor is condensed through heat exchange with the water to be treated.
4. The method of claim 3,
The third fresh water storage tank is a hybrid water treatment device comprising storing the fresh water in which the second vapor is condensed through heat exchange with the water to be treated.
According to claim 1,
The first heat source flow path, the second heat source flow path, and the third heat source flow path are each provided in plurality in the first steam generator, the second steam generator, and the third steam generator. Device.
a first steam generating step of evaporating the target water to generate a first steam by using a temperature difference between the target water and the heat source;
a second steam generating step of receiving the first steam and evaporating the target water by using a temperature difference between the first steam and the target water to generate a second steam;
a third steam generating step of receiving the second steam and evaporating the target water by using a temperature difference between the second steam and the target water to generate a third steam;
a vapor adsorption step of receiving the third vapor and adsorbing the third vapor through an adsorbent containing alumina;
a vapor desorption step of desorbing the third vapor from the adsorbent on which the third vapor has been adsorbed;
a treated water generating step of receiving and condensing the desorbed third vapor to generate treated water; and
In the first steam generating step to the third steam generating step, after the target water is evaporated, the remaining target water is supplied, and in the vapor adsorption step, the remaining target water is recycled by using the vapor adsorption power of the adsorbent. evaporating to produce concentrated water,
The first steam generating step to the third steam generating step are performed in an evaporation module composed of a first steam generator to a third steam generator, respectively,
The first steam generator,
a first heat source flow path providing a path through which the heat source moves;
a first injection passage providing a path through which the water to be treated is introduced, and injecting the water to be treated to the first heat source flow path to generate the evaporated first vapor by heat-exchanging the water to be treated with the heat source in the first heat source flow path;
a first vapor collection passage that collects the first vapor and provides a path through which the collected first vapor moves, and provides the collected first vapor to the second vapor generator; and
and a first collection flow path for collecting the target water that is evaporated and the remaining target water sprayed to the first injection flow path, and providing the remaining target water to a second steam generator,
The second steam generator,
a second heat source flow path through which the first steam provided from the first steam collection flow path of the first steam generator is introduced to provide a path through which the first steam moves;
A second injection providing a path through which the target water flows, and injecting the target water into the second heat source flow path to generate the second steam evaporated by heat exchange with the first steam in the second heat source flow path. Euro;
a second vapor collection passage that collects the second vapor and provides a path through which the second vapor moves; and
and a second collection flow path that collects the remaining target water after evaporation of the target water sprayed to the second injection flow path and provides the remaining target water to a third steam generator,
The third steam generator,
a third heat source flow path through which the second steam provided from the second steam collection flow path of the second steam generator is introduced to provide a path through which the second steam moves;
A third injection providing a path through which the target water flows, and injecting the target water into the third heat source flow path to generate the evaporated third steam by heat-exchanging the target water with the second steam in the third heat source flow path Euro;
a third vapor collection passage that collects the third vapor and provides a path through which the third vapor moves; and
and a third collection flow path for collecting the remaining target water after evaporation of the target water sprayed to the third injection flow path, and providing the remaining target water to a circulation pump.
9. The method of claim 8,
The first to third steam generators, respectively, include first to third fresh water storage tanks,
The first to third freshwater storage tanks are, respectively, a hybrid water treatment method comprising being connected to the first to third heat source flow path.
9. The method of claim 8,
The first heat source flow path, the second heat source flow path, and the third heat source flow path are each provided in plurality in the first steam generator, the second steam generator, and the third steam generator. method.

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