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KR20090072897A - Temperature differential power generation and multi-stage seawater desalination using heat pump - Google Patents

Temperature differential power generation and multi-stage seawater desalination using heat pump Download PDF

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Publication number
KR20090072897A
KR20090072897A KR1020070142045A KR20070142045A KR20090072897A KR 20090072897 A KR20090072897 A KR 20090072897A KR 1020070142045 A KR1020070142045 A KR 1020070142045A KR 20070142045 A KR20070142045 A KR 20070142045A KR 20090072897 A KR20090072897 A KR 20090072897A
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KR
South Korea
Prior art keywords
heat pump
seawater
power generation
steam
pipe
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KR1020070142045A
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Korean (ko)
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이상하
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이상하
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Priority to KR1020070142045A priority Critical patent/KR20090072897A/en
Publication of KR20090072897A publication Critical patent/KR20090072897A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
    • F03G7/047—Environmental heat plants or OTEC plants using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/30—Application in turbines
    • F05B2220/301—Application in turbines in steam turbines
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

A thermal difference power generation using a heat pump and a multi-stage seawater desalination method are provided to obtain hot water from the heat pump and the fresh water from thermal difference generation. A thermal difference power generation using a heat pump and a multi-stage seawater desalination method is as follows. Seawater is raised to 90c using the heat pump. The place where the whole is the closed state to the heated water such as a boiler room and a turbine room is reduced pressure to vacuum. The high-temperature seawater is sent to the boiler room and is evaporated. The turbine is rotated by the vapor pressure and generates electricity. When the steam whereof the temperature falls down is sent to a long vacuum passage, a pipe wherein seawater flows is set up in the center of the vacuum passage and the steam is changed to the fresh water through the pipe.

Description

히트펌프를 이용한 온도차발전 및 다단 해수담수화 방법등{omitted}Temperature differential power generation and multi-stage desalination method using heat pump

원해수온도를 히트펌프로 90c정도까지 올린다. 이산화탄소냉매사용히트펌프등은 온수온도 90c까지 올리수가 있다. 이온도의온수로 진공으로 감압한 터어빈실에 증기 방출하여 터어빈을돌려 발전을 한다. 진공실은 0.1기압이하로 놓고 터어빈을돌린 증기를 열회수를위하여 진공실안으로 관을통하여 외부의 해수가 열교환을시킨다. 열교환방법은 관을 길게하면서 진공실또한길게 하여 터어빈을돌린 기체를 긴진공실을 통과하면서고온의증기상태에서 점점점 열교환이 되어 온도가 떨어진상태로되어 온도가 포화증기압에대응하는 온도이하로 증기온도가 떨어졌을 때 그증기가 액화하여 담수로 바뀌고 관을 통하여 점점점 열교환을받은 해수는 터어빈을돌리고 난 이후의 증기온도비슷하게 육박하고 이온도의 해수를 관을통하여 받아내어 그온도의해수로 다단효용또는 다단프래시방법에 의하여 담수를 얻는것이다.터어빈을돌린 증기온도가 70c라면 이열을 회수하기 위하여 진공으로 연결된 긴통로를 만들고 이통로안으로관을 설치하되 그관으로 해수를 흘러보내면 70c에 육박하는 해수를 받아내는 것이다. 이 온도의해수로 다단증발시켜다시 담수를 얻는 것이다. 어렇게 하면 온도차발전의 발전효율을 25프로로 보았을 때 발전량에 의하여 히트펌프 cop4인 경우 투입전력은 산출전력으로 상쇄되고 담수는 담수대로 얻는 것이다.Raise the raw water temperature to about 90c with a heat pump. Heat pumps using carbon dioxide refrigerant can be heated to a hot water temperature of 90c. Steam is discharged to the turbine chamber which is decompressed to the vacuum with hot water of ionic degree to generate the turbine. The vacuum chamber is kept below 0.1 atm, and the seawater exchanges the seawater through the pipe into the vacuum chamber for heat recovery. In the heat exchange method, the tube is lengthened, the vacuum chamber is also lengthened, and the gas which has turned the turbine is passed through the long vacuum chamber. When it falls, the vapor is liquefied and converted into fresh water. The seawater that is gradually heat exchanged through the pipe is close to the steam temperature after turning the turbine, and the seawater of ionicity is taken through the pipe and used as multi-stage utility or multi-stage. Fresh water is obtained by the flash method. If the steam temperature of the turbine is 70c, make a long passage connected by vacuum to recover the heat and install a pipe into the passage, but when the seawater flows through the pipe, the seawater will reach 70c. will be. Fresh water is obtained by multi-evaporation with seawater at this temperature. In this case, when the heat generation efficiency of the temperature difference generation is 25%, in the case of the heat pump cop4, the input power is offset by the output power and fresh water is obtained by fresh water.

히트펌프이용하여 고온수 만들어 그온수로 심해수를 데워온도차 발전하고 발전량으로 담수까지 하고자함에 있다.It is intended to produce high temperature water using heat pump to warm the deep sea water with the warm water to generate temperature difference and to produce fresh water as the amount of power generated.

히트펌프로 고온수를 만드는 영역Area to make hot water with heat pump

히트펌프이용하여 담수만드는 영역Freshwater making area using heat pump

..

온도차발전하면서 담수생산후 다단증발법등에 의해서 다시 담수 생산한다.Fresh water is produced by the multi-stage evaporation method after producing fresh water with temperature difference.

Claims (1)

히트펌프를 이용하여 바닷물을 90c내외로 올려 그물로 전체가 보일러실 터어빈실등이 폐쇄상태인곳을 진공으로 감압한후 보이러실에 위고온의 해수를 보내어 증발시켜 증기압으로 터어빈을 돌려 발전하고, 온도가 떨어진 증기를 긴 진공통로로 보내되 진공통로의중앙에 해수가 흐르는관을길게 설치하고 이관으로 증기가 가는 마지막부터 해수가 진 입하게 하고한,그기서는 증기가 담수로 바뀌게하면서 터어빈근처에서 마지막열교환을 받은 해수를관밖으 나오게하고 다시 다중효용법이나 다단플래시법으로 담수하면서 위발전양을 히트펌프구동하는 방법Using a heat pump, the seawater is heated to about 90c and the net is decompressed to the boiler room, which is closed to the boiler room. The steam is sent to a long vacuum passage, where the seawater flows into the center of the vacuum passage, and the seawater enters from the end of the steam flow to the pipe, where the steam is turned into fresh water. The method of heat pump driving the above power generation while bringing the seawater which received the last heat exchange out of the pipe and desalination by multi-use or multi-stage flash method
KR1020070142045A 2007-12-28 2007-12-28 Temperature differential power generation and multi-stage seawater desalination using heat pump Withdrawn KR20090072897A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070142045A KR20090072897A (en) 2007-12-28 2007-12-28 Temperature differential power generation and multi-stage seawater desalination using heat pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070142045A KR20090072897A (en) 2007-12-28 2007-12-28 Temperature differential power generation and multi-stage seawater desalination using heat pump

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10473091B2 (en) 2015-12-24 2019-11-12 Delta Driven 24 Sprl Power generation using liquids with different vapour pressures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10473091B2 (en) 2015-12-24 2019-11-12 Delta Driven 24 Sprl Power generation using liquids with different vapour pressures

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Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20071228

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WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid