KR20220160220A - Fresh water wasted water treatment system - Google Patents

Fresh water wasted water treatment system Download PDF

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KR20220160220A
KR20220160220A KR1020210068117A KR20210068117A KR20220160220A KR 20220160220 A KR20220160220 A KR 20220160220A KR 1020210068117 A KR1020210068117 A KR 1020210068117A KR 20210068117 A KR20210068117 A KR 20210068117A KR 20220160220 A KR20220160220 A KR 20220160220A
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water
heat exchanger
raw water
temperature
evaporation
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KR1020210068117A
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Korean (ko)
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배정환
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디더블유이 주식회사
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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
    • C02F1/041—Treatment of water, waste water, or sewage by heating by distillation or evaporation by means of vapour compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B01D1/284—Special features relating to the compressed vapour
    • B01D1/2856—The compressed vapour is used for heating a reboiler or a heat exchanger outside an evaporator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/30—Accessories for evaporators ; Constructional details thereof
    • 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
    • C02F1/043—Details
    • 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
    • C02F1/048—Purification of waste water by evaporation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • 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
    • Y02A20/131—Reverse-osmosis

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

The present invention relates to a freshwater/wastewater treatment system and, more particularly, to a freshwater/wastewater treatment system for obtaining clean drinking water or industrial recycled water by treating seawater or wastewater in a steam compression and heat exchange manner. The freshwater/wastewater treatment system of the present invention comprises: a raw water supply pipe (10) supplying raw water made of seawater or wastewater; an evaporative concentration tank (20) generating steam by heating raw water supplied from the raw water supply pipe (10); a turbo steam compressor (30) having an impeller (31) installed therein and receiving the steam generated by the evaporative concentration tank (20) to generate high-temperature and high-pressure steam; a large latent heat exchanger (40) changing the high-temperature steam generated and transported from the turbo steam compressor (30) into a liquid state; a small sensible heat exchanger (50) exchanging heat between the raw water moving through the raw water supply pipe (10) and the water changed into a liquid state to move by the large latent heat exchanger (40); and a purified water discharge pipe (60) connected to the turbo steam compressor (30) and installed through the large latent heat exchanger (40) and the small sensible heat exchanger (50) so that the high-temperature and high-pressure steam discharged by the turbo steam compressor (30) is changed into high-temperature purified water while passing through the large latent heat exchanger (40) and the small sensible heat exchanger (50) to be discharged to the outside.

Description

담수ㆍ폐수 처리 시스템{Fresh water ㆍ wasted water treatment system}Fresh water and waste water treatment system {Fresh water ㆍ wasted water treatment system}

본 발명은 담수ㆍ폐수 처리 시스템에 관한 것으로, 더욱 상세히는 증기압축과 열교환방식에 의해 해수 또는 폐수 등을 처리하여 깨끗한 먹는 물이나 산업용 재활용수로 얻게 하는 담수ㆍ폐수 처리 시스템에 관한 것이다.The present invention relates to a freshwater/wastewater treatment system, and more particularly, to a freshwater/wastewater treatment system for obtaining clean drinking water or industrial recycled water by treating seawater or wastewater by steam compression and heat exchange.

일반적으로, 물은 인간이 생존하고 생활을 영위하는 데 반드시 필요한 인자 중 하나이다. 그러나 현재 우리나라는 물론 전세계적으로 물이 부족한 실정에 있고, 이러한 물 부족 문제를 해결하기 위하여 다양한 물 재이용 방안이 다양하게 제시되고 있다.In general, water is one of the factors essential for human survival and living. However, water is currently in short supply not only in Korea but also in the world, and various water reuse methods have been proposed to solve this water shortage problem.

특히, 우수를 재이용하는 것은 인류가 아주 오래전부터 행하여 오던 것이고, 지금도 일부 나라에서는 일상생활에서 우수를 재이용하는 것을 확인할 수 있다. 집수한 우수를 적절히 처리하면 용수로 재이용할 수 있지만, 우리나라는 계절별 강우량 차이가 커서 우수 집수에 어려움이 있어 우수의 효과적인 대책 제시가 부족한 상태이다.In particular, the reuse of rainwater has been practiced by humans for a very long time, and it can be confirmed that rainwater is still reused in daily life in some countries. If collected rainwater is properly treated, it can be reused as water. However, in Korea, there is a lack of effective rainwater collection measures due to the large seasonal rainfall difference.

한편, 도서 지역의 경우 물 부족 현상이 현저하고 원활한 물 공급을 위한 대책이 필요하다. 일 예로, 도서지역에 설치되는 해수 담수화시설은 하루 생산량 1천톤 이하의 소규모 시설이고 대부분 시장규모가 미미한 수준이다.On the other hand, in the case of island regions, water shortage is remarkable and measures for smooth water supply are needed. For example, seawater desalination facilities installed in island regions are small facilities with a production capacity of less than 1,000 tons per day, and most of them have a negligible market size.

또한, 기존의 담수화 설비는 고농도의 농축수의 배출로 인하여 수질오염 및 수온상승으로 해양 환경에 부정적 영향을 미치고, 도서 지역과 같이 제한된 에너지 및 수자원이 있는 지역에서 단순한 수처리(담수화) 뿐만 아니라 에너지 효율도 고려한 복합 처리 시스템이 부족한 실정이다.In addition, existing desalination facilities negatively affect the marine environment due to water pollution and water temperature rise due to the discharge of high-concentration concentrated water. There is also a lack of complex treatment systems that take this into account.

이와 같이 수자원이 부족한 도서지역에서는 그의 지리적 특성으로 인해 물의 원활한 공급과 운용에 대한 대책이 필요하고, 특히 에너지 및 수처리 효율적 측면에서 복합적으로 고려되는 담수화 운용 시스템의 요구 및 다른 수자원과 연계하여 운용되도록 하는 대안이 시급하다. As such, in island regions lacking water resources, due to their geographical characteristics, measures for the smooth supply and operation of water are required. An alternative is urgently needed.

따라서, 이를 개선할 필요성이 요청된다.Therefore, there is a need to improve this.

관련 배경기술로는 대한민국 등록특허공보 제10-1394237호(2014.05.07. 등록, 명칭: 다중수원 유입수 및 해수유도용액을 이용한 해수담수화를 위한 삼투막 공정제어 시스템 및 그 방법)가 있다.As a related background art, there is Korean Patent Registration No. 10-1394237 (2014.05.07. Registration, name: Osmosis membrane process control system and method for seawater desalination using multiple water source influent and seawater induction solution).

본 발명은 상기와 같은 문제점을 해결하기 위하여 터보증기압축기를 이용해 수증기를 고온고압으로 압축해주고 압축된 고온고압의 수증기는 열교환기에 의해 원수를 가열시키는 에너지원으로 사용하고 정수된 원수는 상온상태로 배출시켜 적은 에너지원으로도 효율적으로 해수나 폐수, 오염수 등을 정수하여 깨끗한 먹는 물(담수)이나 산업용 재활용수로 얻게 하는 담수ㆍ폐수 처리 시스템을 제공하는데 목적이 있다.In order to solve the above problems, the present invention compresses steam to high temperature and high pressure using a turbo steam compressor, uses the compressed high temperature and high pressure steam as an energy source to heat raw water by a heat exchanger, and discharges purified raw water at room temperature. It is an object of the present invention to provide a freshwater and wastewater treatment system that efficiently purifies seawater, wastewater, and contaminated water with little energy and obtains clean drinking water (freshwater) or industrial recycled water.

본 발명의 담수ㆍ폐수 처리 시스템은 해수 또는 폐수로된 원수를 공급하는 원수공급관(10);The freshwater and wastewater treatment system of the present invention includes a raw water supply pipe 10 for supplying raw water made of seawater or wastewater;

상기 원수공급관(10)으로부터 원수를 공급받아 가열하여 수증기를 발생시키는 증발농축탱크(20);An evaporation concentrating tank 20 generating water vapor by heating raw water supplied from the raw water supply pipe 10;

내부에 임펠러(31)가 설치되고 상기 증발농축탱크(20)에서 발생된 수증기를 공급받아 고온고압의 수증기로 발생시키는 터보증기압축기(30);A turbo steam compressor 30 having an impeller 31 installed therein and generating high-temperature and high-pressure steam by receiving water vapor generated in the evaporation and concentrating tank 20;

상기 터보증기압축기(30)에서 발생되어 이동되는 고온의 수증기를 액체상태로 변화시키는 대형잠열열교환기(40);a large latent heat exchanger (40) for changing the high-temperature water vapor generated and transported in the turbo steam compressor (30) into a liquid state;

상기 대형잠열열교환기(40)에서 액체상태로 변화되어 이동되는 물을 상기 원수공급관(10)을 이동하는 원수와 열교환시키는 소형현열열교환기(50);A small sensible heat exchanger (50) for exchanging heat with raw water moving through the raw water supply pipe (10) for water that is changed to a liquid state and moved in the large latent heat exchanger (40);

상기 터보증기압축기(30)와 연결되고 대형잠열열교환기(40) 및 소형현열열교환기(50)를 통과하여 설치되어 터보증기압축기(30)에서 배출되는 고온고압의 수증기가 대형잠열열교환기(40)와 소형현열열교환기(50)를 거치면서 고온의 정수된 물로 변환되어 외부로 배출되게 하는 정수배출관(60)으로 구성되는 것을 특징으로 한다.Connected to the turbo steam compressor 30 and installed through the large latent heat exchanger 40 and the small sensible heat exchanger 50, high temperature and high pressure water vapor discharged from the turbo steam compressor 30 is transferred to the large latent heat exchanger 40 ) and a purified water discharge pipe 60 that is converted into high-temperature purified water while passing through the small sensible heat exchanger 50 and discharged to the outside.

본 발명은 해수 또는 폐수, 오염수 등을 적은 에너지원으로도 효율적으로 정수하여 깨끗한 먹는 물(담수)나 산업용 재활용수를 얻을 수 있게 하며, 시스템의 구성이 매우 간단하여 낮은 에너지 소비와 정기적으로 교체해야될 부품이 없으며 설치면적이 적고 이동성이 용이한 효과가 있다.The present invention efficiently purifies seawater, wastewater, polluted water, etc. with a small energy source to obtain clean drinking water (fresh water) or industrial recycled water, and the configuration of the system is very simple, resulting in low energy consumption and regular replacement. There are no parts to be done, and the installation area is small and the mobility is easy.

해수의 담수화뿐만 아니라, 처리하고자 하는 원수의 종류에 제한이 없고, 기존 생물화학적 처리가 어렵던 강물, 지하수의 오염수 및 고농도 악성폐수도 효율적으로 처리할 수 있으며, 처리 비용과 에너지 절약효과가 뛰어난 특징이 있다. In addition to desalination of seawater, there is no limit to the type of raw water to be treated, and river water, groundwater contaminated water and high-concentration malignant wastewater, which were previously difficult to treat biochemically, can be efficiently treated, and the treatment cost and energy saving effect are outstanding. there is

기존의 증발 방식의 수처리 장비로는 통상 원수(해수, 폐수, 식품용 액체)를 1 리터(liter) 증발시키는데 에너지가 620 kcal 소모되어 담수 1 리터(liter)가 얻어지나, 본 발명은 증발된 증기를 증기압축기를 이용하여 압축해 주고, 이 증기가 보유한 열량을 열교환기를 통하여 처리하고자 하는 원수를 데우는데 재활용하는 방식으로서, 1 리터(liter)의 담수를 얻는데 소요되는 에너지는 증기압축기를 구동하는데 소요된 전기에너지가 20 kcal로서 (* 물 1 톤(=1,000(kg)) 생산에 증기압축기의 동력은 23.3 kWh 소모됨) 기존에 620 kcal의 에너지 소모에 비해, 20 kcal의 에너지를 가지고도 동일한 양의 담수를 얻을 수 있으므로, 본 발명은 기술적인 검증뿐만 아니라 상업적인 효율성이 국산화로 실현되었을 때, 수처리 장비로서 뿐만 아니라 산업적 이용이 가능한 획기적인 에너지 재활용 장비로서의 가치가 있는 효과가 있다.Conventional evaporation-type water treatment equipment usually consumes 620 kcal of energy to evaporate 1 liter of raw water (seawater, wastewater, food liquid) to obtain 1 liter of fresh water, but in the present invention, the evaporated steam is compressed using a steam compressor, and the heat contained in the steam is recycled to heat the raw water to be treated through a heat exchanger. The energy required to obtain 1 liter of fresh water is required to drive the steam compressor. 20 kcal of electrical energy (* 23.3 kWh of steam compressor power is consumed to produce 1 ton of water (= 1,000 kg)) Since fresh water can be obtained, the present invention has an effect that is valuable not only as a water treatment equipment but also as an innovative energy recycling equipment that can be used industrially when commercial efficiency as well as technical verification is realized through localization.

도 1은 본 발명에 따른 담수ㆍ폐수 처리 시스템의 흐름도
도 2는 본 발명에 따른 담수ㆍ폐수 처리 시스템의 터보증기압축기 도면
도 3은 본 발명에 따른 담수ㆍ폐수 처리 시스템의 터보증기압축기에 설치되는 임펠러 도면1 is a flow chart of a freshwater and wastewater treatment system according to the present invention;
Figure 2 is a view of the turbo steam compressor of the fresh water and wastewater treatment system according to the present invention
3 is a view of an impeller installed in a turbo steam compressor of a desalination and wastewater treatment system according to the present invention.

본 발명의 담수ㆍ폐수 처리 시스템은 해수 또는 폐수로된 원수를 공급하는 원수공급관(10);The freshwater and wastewater treatment system of the present invention includes a raw water supply pipe 10 for supplying raw water made of seawater or wastewater;

상기 원수공급관(10)으로부터 원수를 공급받아 가열하여 수증기를 발생시키는 증발농축탱크(20);An evaporation concentration tank 20 for generating water vapor by receiving raw water from the raw water supply pipe 10 and heating it;

내부에 임펠러(31)가 설치되고 상기 증발농축탱크(20)에서 발생된 수증기를 공급받아 고온고압의 수증기로 발생시키는 터보증기압축기(30);A turbo steam compressor 30 having an impeller 31 installed therein and generating high-temperature and high-pressure steam by receiving water vapor generated in the evaporation and concentrating tank 20;

상기 터보증기압축기(30)에서 발생되어 이동되는 고온의 수증기를 액체상태로 변화시키는 대형잠열열교환기(40);a large latent heat exchanger (40) for changing the high-temperature water vapor generated and transported in the turbo steam compressor (30) into a liquid state;

상기 대형잠열열교환기(40)에서 액체상태로 변화되어 이동되는 물을 상기 원수공급관(10)을 이동하는 원수와 열교환시키는 소형현열열교환기(50);A small sensible heat exchanger (50) for exchanging heat with raw water moving through the raw water supply pipe (10) for water that is changed to a liquid state and moved in the large latent heat exchanger (40);

상기 터보증기압축기(30)와 연결되고 대형잠열열교환기(40) 및 소형현열열교환기(50)를 통과하여 설치되어 터보증기압축기(30)에서 배출되는 고온고압의 수증기가 대형잠열열교환기(40)와 소형현열열교환기(50)를 거치면서 고온의 정수된 물로 변환되어 외부로 배출되게 하는 정수배출관(60)으로 구성되는 것을 특징으로 한다.Connected to the turbo steam compressor 30 and installed through the large latent heat exchanger 40 and the small sensible heat exchanger 50, high temperature and high pressure water vapor discharged from the turbo steam compressor 30 is transferred to the large latent heat exchanger 40 ) and a purified water discharge pipe 60 that is converted into high-temperature purified water while passing through the small sensible heat exchanger 50 and discharged to the outside.

이하, 본 발명의 바람직한 실시예를 도면을 참조하여 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 1에 도시된 바와 같이, 본 발명의 담수ㆍ폐수 처리 시스템은 해수 또는 폐수로된 원수를 공급받아 가열하여 수증기를 발생시키고 수증기를 고온고압의 수증기로 변환시킨 후 원수를 가열하는 에너지원으로 사용하며 고온고압의 수증기는 다시 고온의 정수된 물로 변환되어 외부로 배출되게 원수공급관(10), 증발농축탱크(20), 대형잠열열교환기(40), 소형현열열교환기(50), 정수배출관(60)으로 구성된다.As shown in FIG. 1, the desalination and wastewater treatment system of the present invention receives raw water of seawater or wastewater and heats it to generate water vapor, converts the water vapor into high-temperature and high-pressure water vapor, and then uses it as an energy source to heat the raw water. The high-temperature and high-pressure water vapor is converted back to high-temperature purified water and discharged to the outside. 60).

상기 원수공급관(10)은 상기 증발농축탱크(20)와 연결되어 해수 또는 폐수로된 원수를 상기 증발농축탱크(20)로 공급될 수 있게 하며, 상기 원수공급관(10)으로 공급되는 원수는 80~90℃의 온도로 공급된다.The raw water supply pipe 10 is connected to the evaporation concentration tank 20 so that raw water made of seawater or wastewater can be supplied to the evaporation concentration tank 20, and the raw water supplied to the raw water supply pipe 10 is 80 It is supplied at a temperature of ~90 °C.

상기 증발농축탱크(20)는 상기 원수공급관(10)이 연결되어 원수공급관(10)에서 공급되는 원수가 내부로 저장되고 저장된 원수를 내부에 설치된 전기히터(23)로 1차적으로 가열하여 수증기를 발생시키는 구성이다.The evaporation and concentration tank 20 is connected to the raw water supply pipe 10 so that the raw water supplied from the raw water supply pipe 10 is stored therein and the stored raw water is primarily heated by an electric heater 23 installed therein to produce water vapor. It is a configuration that causes

상기 증발농축탱크(20)에 저장된 원수는 최초 1차적으로만 전기히터(23)로 가열되고 이후부터는 대형잠열열교환기에 의해 열교환되어 원수가 가열되는 방식이다.The raw water stored in the evaporation and concentration tank 20 is firstly heated by the electric heater 23 and thereafter heat exchanged by a large latent heat exchanger to heat the raw water.

상기 증발농축탱크(20)로 공급된 원수는 80~90℃의 온도에서 1차적으로 전기히터(23) 또는 대형잠열열교환기(40)에 의해 100℃의 온도로 가열되어 내부에 수증기가 발생되게 한다.The raw water supplied to the evaporation concentration tank 20 is primarily heated to a temperature of 100 ° C by the electric heater 23 or large latent heat exchanger 40 at a temperature of 80 to 90 ° C so that water vapor is generated inside. do.

상기 증발농축탱크(20)에는 상기 대형잠열열교환기(40)을 통과하면서 상기 정수배출관(60)을 이동하는 고온의 수증기와 열교환이 이루어지게 증발농축탱크순환관(21)이 설치되며, 상기 증발농축탱크순환관(21)은 상기 증발농축탱크(20)에 배출된 원수가 대형잠열열교환기(40)를 통과한 후 다시 증발농축탱크(20)로 배출되는 순환 구조로 설치된다.In the evaporation and concentration tank 20, an evaporation and concentration tank circulation pipe 21 is installed to exchange heat with high-temperature water vapor moving through the purified water discharge pipe 60 while passing through the large latent heat exchanger 40, and the evaporation and concentration tank circulation pipe 21 is installed. The condensation tank circulation pipe 21 is installed in a circulation structure in which the raw water discharged to the evaporation concentration tank 20 passes through the large latent heat exchanger 40 and then is discharged to the evaporation concentration tank 20 again.

따라서 상기 증발농축탱크(20)내의 원수는 상기 증발농축탱크순환관(21)으로 80~90℃ 온도로 배출된 후 대형잠열열교환기(40)를 통과하면서 열교환이 이루어져 100℃의 온도로 상승된 후 이동되며 다시 증발농축탱크(20)로 공급되어 증발농축탱크(20) 내의 원수를 전기히터(23)의 작동없이도 열교환에 의해 100℃로 상승시킬 수 있게 한다.Therefore, the raw water in the evaporation and concentration tank 20 is discharged at a temperature of 80 to 90 ° C through the evaporation and concentration tank circulation pipe 21, and then heat is exchanged while passing through the large latent heat exchanger 40 to raise the temperature to 100 ° C. Then, it is moved and supplied to the evaporation and concentration tank 20 again so that the raw water in the evaporation and concentration tank 20 can be raised to 100° C. by heat exchange without the operation of the electric heater 23.

또한 상기 증발농축탱크(20)에는 증발농축탱크(20)에 공급된 원수의 대부분이 수증기화되어 배출된후 남은 해수나 폐수의 슬러지가 혼합된 농축수를 외부로 배출할 수 있는 농축수배출관(22)이 설치된다.In addition, in the evaporation concentration tank 20, after most of the raw water supplied to the evaporation concentration tank 20 is vaporized and discharged, a concentrated water discharge pipe capable of discharging concentrated water mixed with sludge of remaining seawater or wastewater to the outside ( 22) is installed.

상기 터보증기압축기(30)는 상기 증발농축탱크(20)와 연결된 스팀회수관(24)이 연결되어 상기 증발농축탱크(20) 내의 수증기를 공급받아 고온고압의 수증기로 변환시키는 구성이다.The turbo vapor compressor 30 has a structure in which a steam recovery pipe 24 connected to the evaporation and concentration tank 20 is connected to receive water vapor in the evaporation and concentration tank 20 and convert it into high-temperature and high-pressure water vapor.

도 2 및 도 3에 도시된 바와 같이, 상기 터보증기압축기(30)는 내부의 임펠러(31)가 분당 22,500rpm의 속도로 회전하면서 내부로 공급된 1atm의 100℃ 수증기를 1.3atm의 110℃ 수증기로 변환시켜 내부에 고온고압의 수증기가 발생될 수 있게 한다.As shown in FIGS. 2 and 3, the turbo steam compressor 30 converts 100° C. steam at 1 atm supplied to the inside while the impeller 31 rotates at a speed of 22,500 rpm per minute to 110° C. steam at 1.3 atm. to generate high-temperature and high-pressure water vapor inside.

상기 대형잠열열교환기(40)는 상기 터보증기압축기(30)에서 발생된 고온고압의 수증기를 상기 증발농축탱크순환관(21)을 통과하는 원수와 열교환시켜 액체상태로 변환시키는 구성이다.The large latent heat exchanger 40 is configured to convert high-temperature and high-pressure water vapor generated in the turbo steam compressor 30 into a liquid state by heat exchange with raw water passing through the evaporation and concentration tank circulation pipe 21.

상기 소형현열열교환기(50)는 상기 대형열교환기(40)에서 액체상태로 변화되어 이동되는 물을 상기 원수공급관(10)을 이동하는 원수와 열교환시키는 동시에 농축수배출관(22)이 관통되게 설치되어 농축수배출관(22) 내의 농축수와도 원수공급관(10) 내의 원수가 열교환이 이루어지게 구성된다.The small sensible heat exchanger 50 exchanges heat with the raw water moving through the raw water supply pipe 10 and the water that is changed to a liquid state in the large heat exchanger 40 and is installed so that the concentrated water discharge pipe 22 penetrates. It is configured so that the heat exchange between the concentrated water in the concentrated water discharge pipe 22 and the raw water in the raw water supply pipe 10 is performed.

상기 정수배출관(60)은 상기 터보증기압축관(30)과 연결되고 상기 대형잠열열교환기(40)와 소형현열열교환기(50)를 통과하여 설치되는 구성으로, 상기 터보증기압축기(30)에서 배출되는 고온고압의 수증기가 배출되면서 상기 정수배출관(60)을 이동하고 상기 대형잠열열교환기(40)를 통과하면서 상기 증발농축탱크순환관(23)과 열교환이 이루어지며, 이때 고온고압의 수증기는 증발농축탱크순환관(21)의 원수를 가열하는 에너지원으로 사용되므로 열교환에 의해 온도가 떨어지면서 고온고압의 수증기가 액체화되어 고온의 정수된 물로 변환된 후 정수배출관(60)을 이동하고, 고온의 정수된 물은 소형현열열교환기(50)를 통과하면서는 원수공급관(10)과 열교환이 이루어져 원수를 가열시키는 에너지원으로 사용된 후 외부로 배출되게 한다.The purified water discharge pipe 60 is connected to the turbo steam compression pipe 30 and installed passing through the large latent heat exchanger 40 and the small sensible heat exchanger 50, and is discharged from the turbo steam compressor 30. While the high-temperature and high-pressure water vapor is discharged, it moves through the purified water discharge pipe 60 and passes through the large latent heat exchanger 40 to exchange heat with the evaporation and concentration tank circulation pipe 23. At this time, the high-temperature and high-pressure water vapor evaporates. Since it is used as an energy source for heating the raw water of the enrichment tank circulation pipe 21, the temperature drops by heat exchange, and the high-temperature and high-pressure water vapor is liquefied and converted into high-temperature purified water, and then moves through the purified water discharge pipe 60, The purified water is heat-exchanged with the raw water supply pipe 10 while passing through the small sensible heat exchanger 50 to be used as an energy source for heating the raw water and then discharged to the outside.

이하, 본 발명의 담수·폐수 처리 시스템을 이용하여 해수 또는 폐수로된 원수를 는 먹는 물이나 산업용 재활용수로 사용할 수 있게 정수처리는 과정을 설명하도록 한다.Hereinafter, a process of water purification so that raw water made of seawater or wastewater can be used as drinking water or industrial recycled water using the freshwater/wastewater treatment system of the present invention will be described.

먼저, 80~90℃의 온도인 해수 또는 폐수로된 원수를 원수공급관(10)을 통해 증발농축탱크(20)로 공급한다.First, raw water made of seawater or wastewater at a temperature of 80 to 90 ° C is supplied to the evaporation concentration tank 20 through the raw water supply pipe 10.

상기 증발농축탱크(20)로 공급된 원수는 최초에는 전기히터(23)에 의해 원수를 가열시켜 온도를 100℃로 상승시킴으로써 증발농축탱크(20)내에 수증기를 발생시키며, 이후부터는 전기히터(23)를 사용하지 않고 증발농축탱크순환관(21)에서 배출되는 원수와 소형현열열교환기(50)를 통해 열교환되어 온도가 상승되어 공급되는 원수에 의해 증발농축탱크(20)내의 원수를 100℃의 온도로 가열시킨 후 증발농축탱크(20)내의 수증기를 스팀회수관(24)을 통해 터보증기압축기(30)로 공급한다.The raw water supplied to the evaporation concentration tank 20 is initially heated by the electric heater 23 to raise the temperature to 100 ° C. to generate water vapor in the evaporation concentration tank 20, and thereafter the electric heater 23 ), the raw water in the evaporation concentration tank 20 is heated by heat exchange through the small sensible heat exchanger 50 and the raw water discharged from the evaporation concentrating tank circulation pipe 21, and the raw water supplied is raised to a temperature of 100 ° C. After heating to the temperature, water vapor in the evaporation concentration tank 20 is supplied to the turbo vapor compressor 30 through the steam recovery pipe 24.

상기 터보증기압축기(30)로 공급된 수증기는 1atm이며 100℃의 온도로 공급된 후 내부에 고속회전되는 임펠러(31)에 의해 압축되어 1.3atm이며 110℃의 온도의 고온고압의 수증기로 변환된다.The water vapor supplied to the turbo steam compressor 30 is 1 atm and is supplied at a temperature of 100 ° C., and then compressed by the impeller 31 rotating at high speed inside, and converted into high-temperature and high-pressure steam at 1.3 atm and a temperature of 110 ° C. .

상기 터보증기압축기(30)에서 고온고압으로 변환된 수증기는 정수배출관(60)으로 배출되어 대형잠열열교환기(40)를 통과하면서 증발농축탱크순환관(21)과 열교환이 이루어져 110℃의 온도였던 수증기가 열교환에 의해 107℃의 온도로 떨어지면서 고온의 정수된 물로 변환되어 이동되고, 고온의 정수된 물은 소형현열열교환기(50)를 통과하면서 원수공급관(10)과 열교환이 이루어져 원수공급관(10)을 이동하는 원수를 가열시키는 에너지원으로 사용된 후 외부로 배출시켜 최종 정화된 물을 얻을 수 있게 하여 해수 또는 폐수를 먹는 물(담수)이나 산업용 재활용수로 사용할 수 있게 한다.The water vapor converted to high temperature and high pressure in the turbo steam compressor 30 is discharged through the purified water discharge pipe 60 and passes through the large latent heat exchanger 40, exchanging heat with the evaporation concentrating tank circulation pipe 21 to obtain a temperature of 110 ° C. As the water vapor drops to a temperature of 107 ° C. by heat exchange, it is converted into high-temperature purified water and moved, and the high-temperature purified water passes through the small sensible heat exchanger 50 and exchanges heat with the raw water supply pipe 10 to form the raw water supply pipe ( 10) is used as an energy source to heat moving raw water, and then discharged to the outside to obtain final purified water so that seawater or wastewater can be used as drinking water (fresh water) or industrial recycled water.

본 발명은 전반적인 설명에서 해수 또는 폐수를 정수하는 것으로 설명되었으나 이에 한정하지 않고 강물, 지하수, 생활하수 등을 정수하여 재활용수로 만들수도 있는 것이다.Although the present invention has been described as purifying seawater or wastewater in the general description, it is not limited thereto, and river water, groundwater, domestic sewage, etc. can be purified to make recycled water.

이상과 같이, 본 명세서와 도면에는 본 발명의 바람직한 실시예에 대하여 게시하였으며 비록 특정 용어들이 사용되었으나, 이는 단지 본 발명의 기술 내용을 쉽게 설명하고 발명의 이해를 돕기 위한 일반적인 의미에서 사용된 것이지, 본 발명의 범위를 한정하고자 하는 것은 아니다. 여기에 게시된 실시예 외에도 본 발명의 기술적 사상에 바탕을 둔 다른 변형 예들이 실시 가능하다는 것은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 자명한 것이다.As described above, preferred embodiments of the present invention are disclosed in the present specification and drawings, and although specific terms are used, they are only used in a general sense to easily explain the technical content of the present invention and help understanding of the present invention, It is not intended to limit the scope of the present invention. It is obvious to those skilled in the art that other modified examples based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

10-원수공급관
20-증발농축탱크
30-터보증기압축기
40-대형잠열열교환기
50-소형현열열교환기
60-정수배출관10-raw water supply pipe
20-evaporation concentration tank
30-ter guaranteed compressor
40-large latent heat exchanger
50-small sensible heat exchanger
60-clean water discharge pipe

Claims (5)

해수 또는 폐수로된 원수를 공급하는 원수공급관(10);
상기 원수공급관(10)으로부터 원수를 공급받아 가열하여 수증기를 발생시키는 증발농축탱크(20);
내부에 임펠러(31)가 설치되고 상기 증발농축탱크(20)에서 발생된 수증기를 공급받아 고온고압의 수증기로 발생시키는 터보증기압축기(30);
상기 터보증기압축기(30)에서 발생되어 이동되는 고온의 수증기를 액체상태로 변화시키는 대형잠열열교환기(40);
상기 대형잠열열교환기(40)에서 액체상태로 변화되어 이동되는 물을 상기 원수공급관(10)을 이동하는 원수와 열교환시키는 소형현열열교환기(50);
상기 터보증기압축기(30)와 연결되고 대형잠열열교환기(40) 및 소형현열열교환기(50)를 통과하여 설치되어 터보증기압축기(30)에서 배출되는 고온고압의 수증기가 대형잠열열교환기(40)와 소형현열열교환기(50)를 거치면서 고온의 정수된 물로 변환되어 외부로 배출되게 하는 정수배출관(60)으로 구성되는 것을 특징으로 하는 담수ㆍ폐수 처리 시스템.A raw water supply pipe 10 for supplying raw water made of seawater or wastewater;
An evaporation concentration tank 20 for generating water vapor by receiving raw water from the raw water supply pipe 10 and heating it;
A turbo steam compressor 30 having an impeller 31 installed therein and generating high-temperature and high-pressure steam by receiving water vapor generated in the evaporation and concentrating tank 20;
a large latent heat exchanger (40) for changing the high-temperature water vapor generated and transported in the turbo steam compressor (30) into a liquid state;
A small sensible heat exchanger (50) for exchanging heat with raw water moving through the raw water supply pipe (10) for water that is changed to a liquid state and moved in the large latent heat exchanger (40);
Connected to the turbo steam compressor 30 and installed through the large latent heat exchanger 40 and the small sensible heat exchanger 50, high temperature and high pressure water vapor discharged from the turbo steam compressor 30 is transferred to the large latent heat exchanger 40 ) And a purified water discharge pipe 60 that is converted into high-temperature purified water while passing through a small sensible heat exchanger 50 and discharged to the outside. 청구항 1에 있어서,
상기 증발농축탱크(20)에는 상기 정수배출관(60)을 이동하면서 상기 대형잠열열교환기(40)를 통과하는 고온의 수증기와 열교환이 이루어진 후 다시 상기 증발농축탱크(20)로 공급되게 하는 증발농축탱크순환관(21)이 설치되는 것을 특징으로 하는 담수ㆍ폐수 처리 시스템.The method of claim 1,
In the evaporation and concentration tank 20, evaporation and concentration to be supplied to the evaporation and concentration tank 20 again after heat exchange with high-temperature water vapor passing through the large latent heat exchanger 40 while moving the purified water discharge pipe 60 Freshwater and wastewater treatment system, characterized in that the tank circulation pipe (21) is installed. 청구항 1에 있어서,
상기 증발농축탱크(20)에는 증발농축탱크(20)의 농축수가 배출되면서 소형헌열열교환기(50)를 통과하여 열교환이 이루어진 후 외부로 배출되는 농축수배출관(22)이 설치되는 것을 특징으로 하는 담수ㆍ폐수 처리 시스템.The method of claim 1,
Characterized in that the evaporation concentration tank 20 is provided with a concentrated water discharge pipe 22 through which the concentrated water of the evaporation concentration tank 20 is discharged and discharged to the outside after passing through the small heat exchanger 50 and heat exchanged Fresh water and waste water treatment system. 청구항 1에 있어서,
상기 증발농축탱크(20)에는 전기히터(23)가 설치되는 것을 특징으로 하는 담수ㆍ폐수 처리 시스템.The method of claim 1,
Freshwater and wastewater treatment system, characterized in that the electric heater (23) is installed in the evaporation concentration tank (20). 청구항 1에 있어서,
상기 터보증기압축기(30)에서는 1atm의 100℃ 수증기를 1.3atm의 110℃로 수증기로 변환시키는 것을 특징으로 하는 담수ㆍ폐수 처리 시스템.




The method of claim 1,
The turbo steam compressor (30) converts 1 atm of 100 ° C steam to 1.3 atm of 110 ° C water vapor.
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