KR20020066502A - The method of seawater desalination by utilization of solar heat and it`s equipment - Google Patents

The method of seawater desalination by utilization of solar heat and it`s equipment Download PDF

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Publication number
KR20020066502A
KR20020066502A KR1020010006723A KR20010006723A KR20020066502A KR 20020066502 A KR20020066502 A KR 20020066502A KR 1020010006723 A KR1020010006723 A KR 1020010006723A KR 20010006723 A KR20010006723 A KR 20010006723A KR 20020066502 A KR20020066502 A KR 20020066502A
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South Korea
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seawater
heat
desalination
pipe
heated
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KR1020010006723A
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Korean (ko)
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박창호
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박창호
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Publication of KR20020066502A publication Critical patent/KR20020066502A/en

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • B01D5/0075—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with heat exchanging
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/142—Solar thermal; Photovoltaics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

PURPOSE: Method and apparatus of seawater desalination using solar heat are provided to increase heating efficiency by sequentially passing seawater introduced at low temperature through cooling pipe and heat recovery pipe, and improve condensation efficiency by keeping the surface of the cooling pipe cold. CONSTITUTION: In a desalination apparatus for desalting seawater using solar energy, the apparatus of seawater desalination comprises an intake unit(100) for introducing seawater containing salt; a filtering unit(200) for removing particle shaped materials such as floating matter in the seawater introduced; a vapor generator(300) in the inner upper space of which a cooling pipe(310) is formed, a collection pipe(320) having a certain slope is formed on the bottom of the cooling pipe(310), and which is consisted of a sealed housing, heated seawater is introduced into an inlet(330) formed at the lower part of the housing so as to induce generation of vapor; a heat exchanger(400) for increasing temperature of seawater flowing into a pipeline using latent heat of the seawater concentrated as seawater is passing through the vapor generator(300); and a solar heat collector(500) to an inlet formed at one side of which an outlet of a heat recovery pipe(410) positioned in the internal space of the heat exchanger(400) is extended so that the heated seawater is introduced into the solar heat collector(500), and which heats seawater using solar energy collected on a heat collection plate.

Description

태양열을 이용한 해수 담수화 방법 및 그 장치{The method of seawater desalination by utilization of solar heat and it`s equipment}The seawater desalination method and apparatus using solar heat {The method of seawater desalination by utilization of solar heat and it`s equipment}

본 발명은 태양열을 이용한 해수 담수화 방법 및 그 장치에 관한 것으로, 특히 유입된 해수를 태양열을 이용하여 직접 가열하고 가열된 해수의 증기가 취수 초기의 낮은 온도의 해수가 흐르는 냉각관 외주면에서 응축되도록 하여 담수를 회수토록 한 것이다.The present invention relates to a seawater desalination method and apparatus using solar heat, and in particular, the incoming seawater is directly heated using solar heat so that steam of the heated seawater is condensed on the outer circumferential surface of the cooling tube in which seawater at low temperature flows in the initial stage of intake. Fresh water was recovered.

해수를 증발시켜 담수를 취하는 방법은 오래전부터 시도되었으며, 해수를 증발시키기 위한 수단으로서 태양에너지를 이용하는 방법 또한 근래에 이르면서 많은 관심을 받게 되었다.The method of evaporating seawater to take fresh water has been tried for a long time, and the use of solar energy as a means to evaporate seawater has also received much attention in recent years.

전통적인 담수화 방법인 다단플래쉬 증발법(MSF, Multistage Flush)의 개략적인 모식도가 도 1에 도시되어있다. 도면에 도시된 바와 같이 해수는 열방출부의 전열관에 유입되어 승온된 후, 그 중에 일부가 보급해수로서 사용되며 여기에 전처리로서 약품을 첨가하게 된다.A schematic diagram of the traditional desalination method, Multistage Flush (MSF), is shown in FIG. 1. As shown in the figure, after the seawater is introduced into the heat transfer tube of the heat dissipation unit and heated up, part of it is used as replenishment seawater and chemicals are added to it as pretreatment.

이렇게 처리된 보급해수는 순환되는 농축해수와 혼합되어 열회수부의 전열관(10)으로 들어가게 된다. 전열관은 외표면의 증기를 응축하여 해수로부터 증유수를 분리하는 역할을 하며, 전열관내의 혼합수는 예열된 상태에서 가열장치(20)로 들어간다. 가열장치(20)에서는 외부의 가열증기에 의해 최고농축해수 온도까지 가열된 후 오리피스에 의해 감압되어 높은 압력의 플래쉬실(30)에 유입된다. 여기서 단열자기 증발인 플래쉬증발이 일어나 증기가 분리된 후 전열관의 예열에 사용됨과 동시에 응축수가 되며 이것이 담수로서 담수회수장치(40)에 의해 회수된다.The treated seawater thus treated is mixed with the concentrated seawater circulated to enter the heat transfer tube 10 of the heat recovery unit. The heat transfer tube condenses steam on the outer surface to separate the steamed water from the seawater, and the mixed water in the heat transfer tube enters the heating device 20 in a preheated state. In the heating device 20 is heated to the maximum concentrated seawater temperature by the external heating steam, and decompressed by the orifice flows into the flash chamber 30 of high pressure. Here, the flash evaporation, which is adiabatic magnetic evaporation, is used to preheat the heat transfer pipe after the steam is separated, and at the same time, the condensed water is recovered by the fresh water recovery device 40 as fresh water.

또한 농축해수는 다음의 플래쉬실(30`)에 들어가 순차적으로 증발이 일어나 전열관의 외표면에 응축되어 담수로 회수된다.In addition, the concentrated seawater enters the next flash chamber 30 'and evaporates sequentially, condensed on the outer surface of the heat transfer tube and recovered as fresh water.

순차적으로 진행하며 농축된 해수는 농축수배출장치(50)에 의해 외부로 배출된다.Progressed sequentially and the concentrated seawater is discharged to the outside by the concentrated water discharge device (50).

응축시 발생하는 가스는 벤트 장치(60)에 의해 신속히 외부로 배출됨으로서 플래쉬실(30)(30`)의 내부는 일정한 감압상태를 유지하게 되는 것이다.The gas generated during condensation is quickly discharged to the outside by the vent device 60, so that the interior of the flash chambers 30 and 30 ′ maintains a constant reduced pressure.

그러나 종래의 이러한 다단 플래쉬 증발법은 관내로 유입된 해수가 관내에서 간접 가열되어짐으로서 관까지 가열해야 함으로서 가열에 따른 연료의 소모가 많다는 단점이 있었다.However, the conventional multi-stage flash evaporation method has a disadvantage in that the consumption of fuel due to heating is required because the seawater introduced into the tube needs to be heated up to the tube because it is indirectly heated in the tube.

특히 에너지 밀도가 고작 평방미터당 1킬로와트(1 Kw/m2)정도인 태양 에너지를 이용하여 최고농축 해수온도(섭씨 약 80도)까지 가열하기는 기술적으로 어려움이 많았다.In particular, it was technically difficult to heat up to the highest concentrated seawater temperature (about 80 degrees Celsius) using solar energy with an energy density of only 1 kilowatt (1 Kw / m 2 ) per square meter.

또한 태양에너지는 시간과 계절 및 일기에 따라 상당히 변화가 심함으로 안정적인 고밀도 에너지를 요구하는 종래의 증발법에의 적용은 적합하지 못하여 실용화가 어려웠으며, 생산에 투입되는 비용에 비해 얻어지는 담수의 양이 적어 경제적이지 못하다는 단점이 있었다.In addition, solar energy varies considerably with time, season, and weather, making it difficult to apply to conventional evaporation methods that require stable high-density energy. There was a disadvantage that it is not economical.

따라서 본 발명은 상기한 종래의 문제점을 해결하기 위하여 안출 한 것으로,Therefore, the present invention has been made to solve the above-mentioned conventional problems,

낮은 온도로 취수된 해수를 냉각관 및 열회수관을 따라 순차적으로 지나도록하여관내의 해수를 간접 예열시키고 태양열 집열기로 유입하여 직접적으로 가열토록 함으로서 가열효율을 증가하며 냉각관 표면을 차갑게 유지함으로서 응축효율을 향상시킬 수 있도록 한 것이다.Condensation efficiency is increased by indirectly preheating the seawater in the pipe by flowing the seawater collected at low temperature along the cooling pipe and the heat recovery pipe and heating it directly to the solar collector to keep the surface of the cooling pipe cold. To improve it.

도 1은 종래의 증발법에 따른 대표적 해수 담수화 방법인 다단 후레쉬 증발법의 모식도.1 is a schematic diagram of a multi-stage fresh flash evaporation method that is representative of seawater desalination according to a conventional evaporation method.

도 2는 본 발명에 따른 해수 담수화 방법의 계통도.2 is a system diagram of the seawater desalination method according to the present invention.

도 3은 본 발명의 일 실시 예에 따른 해수 담수화 장치의 구성도.3 is a block diagram of a seawater desalination apparatus according to an embodiment of the present invention.

<도면의주요부분에대한부호의설명>Explanation of symbols on the main parts of the drawing

10: 전열관20: 가열장치10: heat pipe 20: heating device

30: 플래쉬실40: 담수회수장치30: flash chamber 40: fresh water recovery device

50: 농축수 배출장치60: 벤트장치50: concentrated water discharge device 60: vent device

100: 취수장치200: 여과기100: intake 200: filter

300: 증기발생기310: 냉각관300: steam generator 310: cooling tube

320: 포집판322: 회수관320: collecting plate 322: recovery tube

330: 유입구340: 유출구330: inlet 340: outlet

400: 열교환기410: 열회수관400: heat exchanger 410: heat recovery tube

500: 태열열 집열기500: heat filing collector

이하에서는 첨부 도면을 참조하여 본 발명의 가장 바람직한 일 실시 예를 상세히 설명하기로 한다. 명세서 및 도면에 기재되는 구조상의 기능이 동일할 경우에는 부호 및 설명을 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the case where the structural functions described in the specification and the drawings are the same, reference numerals and descriptions are omitted.

도 2은 본 발명에 따른 해수 담수화 방법의 계통도로서, 담수화 장치의 가장 기초적인 구성을 나타낸다.Figure 2 is a schematic diagram of the seawater desalination method according to the present invention, showing the most basic configuration of the desalination apparatus.

본 발명에 따른 담수화 장치는 염분 등이 포함된 해수를 취수하기 위한 취수장치(100)와 취수된 해수 중에 부유물 등의 입자상 물질을 제거하기 위한 여과장치(200)와 내부 상단 공간부에는 사형의 냉각관(310)이 위치되고 냉각관 저면으로 소정의 기울기를 가지는 포집판(320)이 위치되며 하단부로 형성된 유입구(330)로는 가열된 해수가 유입되어 증기의 발생을 유도하는 밀폐된 함체로 이루어진 증기발생기(300)와 증기발생기(300)를 지나면서 농축된 해수의 보유열을 이용하여 관내로 흐르는 해수를 승온시키기 위한 열교환기(400) 및 일측으로 형성된 유입구로는 열교환기(400)의 내부공간에 위치하는 열회수관(410)의 출구가 연장되어 승온된 해수가 유입되며 집열판에 포집된 태양에너지를 이용하여 가열하는 태양열 집열기(500)로 구성된다.The desalination apparatus according to the present invention is a water intake apparatus 100 for taking in seawater containing salt and the like and a filtration device 200 for removing particulate matter such as suspended solids in the collected seawater and an internal upper space portion. The pipe 310 is located and the collecting plate 320 having a predetermined slope to the bottom of the cooling tube is located and the inlet 330 formed as a lower portion of the steam consisting of a sealed enclosure that the heated seawater is introduced to induce the generation of steam The internal space of the heat exchanger 400 and the heat exchanger 400 for increasing the temperature of the seawater flowing into the pipe using the retained heat of the concentrated seawater passing through the generator 300 and the steam generator 300 The outlet of the heat recovery pipe 410 located in the extended seawater is introduced and consists of a solar collector 500 for heating using the solar energy collected in the heat collecting plate.

상기 취수장치(100)는 수심이 깊을수록 차가운 성질을 보이는 해수의 특성상될 수 있는 한 깊은 심해의 물을 퍼 올릴 수 있도록 고압의 펌프가 바람직하다.The intake device 100 is preferably a high-pressure pump so that the deeper the water can be as deep as possible due to the nature of the sea water showing the cold properties as the deeper.

상기 여과장치(200)는 관의 폐쇄 등을 막기 위한 전처리시설로서 취수압을 이용하여 가압 여과할 수 있도록 한 프레휠터 등으로 구성되나 취수되는 해수의 탁도 등에 따라 소정의 간격을 가지는 메쉬망으로 이루어질 수도 있는 것이다.The filtering device 200 is a pre-treatment facility for preventing the closing of the pipe, etc. It is composed of a pre-filter to enable pressure filtration using a water intake pressure, but made of a mesh network having a predetermined interval according to the turbidity of the sea water to be withdrawn It could be.

상기 증기발생기(300)의 내면 상부에는 사형의 냉각관(310)이 형성되고 입구는 여과장치(200)의 출구부에 연결되고 출구는 열교환기(400)의 열회수관(410) 입구부로 연결되어진다.The upper portion of the inner surface of the steam generator 300 has a sand-shaped cooling tube 310 is formed, the inlet is connected to the outlet of the filtration device 200 and the outlet is connected to the inlet of the heat recovery tube 410 of the heat exchanger 400 Lose.

또한 상기 냉각관(310)의 하부에는 응축되어 회수되는 담수를 포집하기 위한 포집판(320)이 소정의 기울기를 갖고 형성되고 포집판(320)으로 회수된 담수는 포집판의 저면으로 형성된 회수관(322)을 따라 증기발생기(300) 외부로 빠져 나오게 된다.In addition, a collecting plate 320 for collecting the condensed and recovered fresh water is formed at a lower portion of the cooling tube 310 with a predetermined slope, and the fresh water recovered by the collecting plate 320 is formed at the bottom of the collecting plate. Along with the 322 is to exit to the outside of the steam generator (300).

이때 상기 증기발생기(300)의 마주보는 측면 하단부로는 가열된 해수 유입구(330) 및 유출구(340)가 형성된다.At this time, the heated seawater inlet 330 and the outlet 340 are formed at the lower side of the side facing the steam generator 300.

상기 유입구(330) 및 유출구(340)는 1개 이상의 분배구가 등간격으로 형성된 분배판에 의해 증기발생기(300) 저면으로 균일하게 가열된 해수를 공급할 수 있도록 해준다.The inlet 330 and the outlet 340 allow one or more distribution ports to supply uniformly heated seawater to the bottom of the steam generator 300 by distribution plates formed at equal intervals.

상기 증기발생기(300)로 유입되는 가열된 해수는 후술하는 태양열 집열기(500)을 통과한 해수로 발생 경로는 후술된다.The heated seawater flowing into the steam generator 300 is a seawater path generated after passing through the solar collector 500 to be described later.

상기 열교환기(400)의 내부에는 증기발생기(300)를 통과한 지나 농축된 해수로 충진되며, 해수 내로 사형의 열회수관(410)이 담겨짐으로서 관내를 흐르는 해수는 승온된다.The heat exchanger 400 is filled with concentrated seawater after passing through the steam generator 300, and the seawater flowing in the pipe is heated by containing a sand-type heat recovery pipe 410 into the seawater.

상기 열회수관(410)의 입구는 냉각관(310)의 출구와 연결되고 출구는 연장되어 태양열 집열기(500)로 유입된다.The inlet of the heat recovery tube 410 is connected to the outlet of the cooling tube 310 and the outlet is extended into the solar collector 500.

태양열 집열기(500)로 유입된 해수는 태양 열에너지에 의해 직접 가열되고 전술된 증기발생기(300)로 유입되어 증기화 된 후 차가운 해수가 흐르는 냉각관(310) 외주면에서 응축되고 회수되는 것이다.The seawater introduced into the solar collector 500 is directly heated by solar thermal energy and flows into the above-described steam generator 300 to vaporize and condensed and recovered in the outer circumferential surface of the cooling tube 310 in which cold seawater flows.

물론 상기의 태양열 집열기(500)는 해수의 유입량과 가열 온도 등을 고려하여 충분한 용량을 갖도록 설계함이 바람직하다.Of course, the solar collector 500 is preferably designed to have a sufficient capacity in consideration of the amount of inflow and heating temperature of the sea water.

한편 열교환기(400)내로 유입된 농축 해수는 일정시간 체류하며 열회수관(410)내를 흐르는 해수를 예열한 후 배출구를 통해 배출된다.Meanwhile, the concentrated seawater introduced into the heat exchanger 400 stays for a predetermined time and preheats the seawater flowing in the heat recovery pipe 410 and then is discharged through the outlet.

본 방법에 따른 담수화 장치는 1기 이상으로 구성된 증기발생기(300)를 병렬또는 직렬로 배열하거나 모든 구성요소를 복수로 구비할 수 있는 것이다.The desalination apparatus according to the present invention may be arranged in parallel or in series, or a plurality of components of the steam generator 300 composed of one or more.

도 3은 본 발명의 일 실시 예에 따라 복수의 증기발생기(300)가 병렬로 구성된 담수화 장치를 보여준다.3 shows a desalination apparatus in which a plurality of steam generators 300 are configured in parallel according to an embodiment of the present invention.

도면과 도시된 바와 같이 취수장치(100)를 통해 심해에서 취수된 해수는 여과장치(200)를 지나 증기 발생기(300)의 냉각관(310)으로 유입되고 유입된 해수는 냉각관(310) 외면의 온도를 섭씨 10도 내외로 유지시키게 된다.As shown in the figure and the seawater is taken from the deep sea through the intake device 100 is passed through the filtration device 200 to the cooling tube 310 of the steam generator 300 and the introduced sea water is the cooling tube 310 outer surface It keeps the temperature of about 10 degrees Celsius.

냉각관(310) 및 열회수관(410)을 지나 밀폐 관로를 따라 일순되며 섭씨 약 20 내지 30도 정도로 예열된 채 태양열 집열기(500)로 유입되고 계절적 특성 및 일기에 따라 섭씨 60 내지 90도로 가열된 해수는 증기발생기(300) 내에서 증기화되어진다.Passed through the cooling pipe 310 and the heat recovery pipe 410 along the closed pipeline and is preheated to about 20 to 30 degrees Celsius into the solar collector 500 and heated to 60 to 90 degrees Celsius depending on the seasonal characteristics and weather Seawater is vaporized in the steam generator (300).

이때 가열된 해수가 유입되는 유입구(330)를 오리피스로 구성하여 감압하거나 증기화된 가스의 배출을 위한 벤트장치(미도시)를 구비하여 증기발생기(300) 내부를 감압상태로 유지하도록 하면 낮은 온도에서도 많은 증기 발생을 이룰 수 있는 것이다.In this case, the inlet 330 into which the heated seawater is introduced is formed as an orifice, and a vent device (not shown) for decompressing or discharging the vaporized gas is provided to maintain the inside of the steam generator 300 at a reduced pressure. Even in the steam generation can be achieved.

유입된 해수는 증기화되어 냉각관(310) 외주면에 접촉되고 온도차에 의해 응축됨으로서 목적된 담수는 포집판(320)에 포집되고 회수관(322)을 통해 회수되어 사용토록 되는 것이다.The introduced seawater is vaporized to be in contact with the outer circumferential surface of the cooling tube 310 and condensed by a temperature difference, so that the intended fresh water is collected in the collecting plate 320 and recovered through the recovery tube 322 for use.

상술한 바와 같이 본 발명의 담수화 방법에 따라 해수를 담수화 할 경우 해수의 취수를 위한 동력 이외의 별다른 동력을 필요치 않으므로 담수의 생산 비용을 줄일 수 있으며, 태양열 집열기를 통해 직접 가열됨으로서 에너지 밀도가 작은 태양열을 최대한 활용할 수 있다는 장점이 있는 것이다.As described above, when desalination of seawater according to the desalination method of the present invention does not require any power other than power for seawater intake, the production cost of freshwater can be reduced, and solar energy having a low energy density is directly heated through a solar collector. The advantage is that you can make the most of it.

Claims (4)

태양열 에너지를 이용하여 해수를 담수화하기 위한 담수화 장치에 있어서, 염분 등이 포함된 해수를 취수하기 위한 취수장치(100)와 취수된 해수 중에 부유물 등의 입자상 물질을 제거하기 위한 여과장치(200)와 내부 상단 공간부에는 사형의 냉각관(310)이 위치되고 냉각관 저면으로 소정의 기울기를 가지는 포집판(320)이 위치되며 하단부로 형성된 유입구(330)로는 가열된 해수가 유입되어 증기의 발생을 유도하는 밀폐된 함체로 이루어진 증기발생기(300)와 증기발생기(300)를 지나면서 농축된 해수의 보유열을 이용하여 관내로 흐르는 해수를 승온시키기 위한 열교환기(400) 및 일측으로 형성된 유입구로는 열교환기(400)의 내부공간에 위치하는 열회수관(410)의 출구가 연장되어 승온된 해수가 유입되며 집열판에 포집된 태양에너지를 이용하여 가열하는 태양열 집열기(500)로 구성됨을 특징으로 하는 담수화장치.In the desalination apparatus for desalination of seawater using solar energy, the intake apparatus 100 for taking in seawater including salt and the like and the filtration device 200 for removing particulate matter such as suspended matter in the collected seawater; In the upper upper space portion, a sand-shaped cooling tube 310 is positioned, and a collecting plate 320 having a predetermined slope is located at the bottom of the cooling tube, and heated seawater is introduced into the inlet 330 formed at the lower portion to generate steam. The heat generator 400 and the inlet formed at one side for raising the temperature of the seawater flowing into the pipe by using the retained heat of the concentrated seawater passing through the steam generator 300 and the steam generator 300 made of a sealed enclosure to guide The outlet of the heat recovery pipe 410 located in the inner space of the heat exchanger 400 is extended so that the heated seawater flows in and heats using solar energy collected in the heat collecting plate. Desalination apparatus, characterized in that consisting of a heat collector (500). 제 1항에 있어서, 상기 유입구(330)는 접속 단부가 좁아지도록 하여 유출시 감압되도록 하는 오리피스로 이루어짐을 특징으로 하는 담수화장치.The desalination apparatus according to claim 1, wherein the inlet 330 is made of an orifice which narrows the connection end so as to depressurize when it is discharged. 제 1항 또는 제 2항에 있어서, 상기 증기발생기(300)의 상단부로는 증기가스 벤트장치가 더 형성되어짐을 특징으로 하는 담수화 장치.The desalination apparatus according to claim 1 or 2, wherein a steam gas vent device is further formed at an upper end of the steam generator (300). 태양에너지를 이용하여 해수를 담수화 하기 위한 방법에 있어서,In the method for desalination of seawater using solar energy, 해수를 취수하는 취수단계 ;Withdrawal stage to withdraw seawater; 취수된 해수를 여과하는 여과단계;A filtration step of filtering the collected seawater; 농축해수를 이용하여 유입해수를 간접 가열하기 위한 열 회수 단계;A heat recovery step for indirectly heating the incoming seawater using the concentrated seawater; 예열된 유입해수를 태양에너지를 이용하여 직접 가열하기 위한 가열단계;A heating step for directly heating the preheated inflow seawater using solar energy; 가열된 해수를 증발시키고 유입되는 해수가 흐르는 냉각관의 외표면에 온도차로 인하여 담수가 맺히도록 결로시키는 응축단계;A condensation step of evaporating the heated seawater and condensing fresh water due to the temperature difference on the outer surface of the cooling pipe through which the incoming seawater flows; 응축된 담수를 회수하기 위한 포집단계; 및A collection step for recovering condensed fresh water; And 증발이 끝나고 증기발생기로부터 유출된 농축해수의 여열을 이용하여 유입해수를 간접 가열하기 위한 열 회수 단계와 동시에 일어나는 농축수 배출 단계;를 포함하 것을 특징으로 하는 태양열을 이용한 해수의 담수화 방법.The desalination method of seawater using solar heat, comprising: a concentrated water discharge step occurring at the same time as the heat recovery step for indirectly heating the incoming seawater using the residual heat of the concentrated seawater discharged from the steam generator after the evaporation.
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KR100726066B1 (en) * 2006-04-07 2007-06-08 두산중공업 주식회사 Freshwater apparatus of seawater using waste heat
KR100741674B1 (en) * 2005-08-25 2007-07-23 서형덕 The marine water heating and marine fresh-water generator and water-purifying apparatus using solar heating energy
CN100337929C (en) * 2003-01-21 2007-09-19 张文知 Method and equipment for desalting seawater and bitter by using ass natural energy
WO2009128578A1 (en) * 2008-04-15 2009-10-22 Jmbio Inc. Method of manufacture of magnetism mineral water
WO2011108771A1 (en) * 2010-03-03 2011-09-09 Hong Jeong-Ho Device for distilling various kinds of water by using solar heat, and distillation method
WO2014197884A1 (en) * 2013-06-07 2014-12-11 NF Industries, LLC Solar water purifier
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CN112978834A (en) * 2021-02-24 2021-06-18 中国矿业大学 Solar seawater desalination device of water surface floating type condenser
CN113072115A (en) * 2021-05-08 2021-07-06 西安热工研究院有限公司 System and method for recycling strong brine waste heat for desalting water of heating unit
CN116768310A (en) * 2023-08-22 2023-09-19 山东省科学院能源研究所 Full-time multistage flash evaporation seawater desalination system with solar energy combined with thermochemical battery

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100337929C (en) * 2003-01-21 2007-09-19 张文知 Method and equipment for desalting seawater and bitter by using ass natural energy
KR100741674B1 (en) * 2005-08-25 2007-07-23 서형덕 The marine water heating and marine fresh-water generator and water-purifying apparatus using solar heating energy
KR100726066B1 (en) * 2006-04-07 2007-06-08 두산중공업 주식회사 Freshwater apparatus of seawater using waste heat
WO2009128578A1 (en) * 2008-04-15 2009-10-22 Jmbio Inc. Method of manufacture of magnetism mineral water
KR100968111B1 (en) * 2008-04-15 2010-07-06 제이엠바이오 주식회사 Method of manufacture of magnetism mineral water from ocean water and apparatus thereof
CN102844274A (en) * 2010-03-03 2012-12-26 洪廷豪 Device for distilling various kinds of water by using solar heat, and distillation method
WO2011108771A1 (en) * 2010-03-03 2011-09-09 Hong Jeong-Ho Device for distilling various kinds of water by using solar heat, and distillation method
CN102844274B (en) * 2010-03-03 2014-11-05 洪廷豪 Device for distilling various kinds of water by using solar heat, and distillation method
WO2014197884A1 (en) * 2013-06-07 2014-12-11 NF Industries, LLC Solar water purifier
US9796602B2 (en) 2013-06-07 2017-10-24 NF Industries, LLC Solar water purifier
KR20150050663A (en) * 2013-10-30 2015-05-11 (주)엔티시 Sea water desalting system using solar energy
CN112978834A (en) * 2021-02-24 2021-06-18 中国矿业大学 Solar seawater desalination device of water surface floating type condenser
CN113072115A (en) * 2021-05-08 2021-07-06 西安热工研究院有限公司 System and method for recycling strong brine waste heat for desalting water of heating unit
CN116768310A (en) * 2023-08-22 2023-09-19 山东省科学院能源研究所 Full-time multistage flash evaporation seawater desalination system with solar energy combined with thermochemical battery

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