KR100715222B1 - Energy storage system of nuclear power plant - Google Patents

Energy storage system of nuclear power plant Download PDF

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KR100715222B1
KR100715222B1 KR1020050103206A KR20050103206A KR100715222B1 KR 100715222 B1 KR100715222 B1 KR 100715222B1 KR 1020050103206 A KR1020050103206 A KR 1020050103206A KR 20050103206 A KR20050103206 A KR 20050103206A KR 100715222 B1 KR100715222 B1 KR 100715222B1
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hydrogen
steam
power plant
nuclear power
oxygen
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KR1020050103206A
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Korean (ko)
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KR20070046466A (en
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하상준
정광국
전황용
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한국전력공사
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D1/00—Details of nuclear power plant
    • 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
    • Y02E30/00—Energy generation of nuclear origin
    • 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
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Abstract

본 발명은 원자력발전소 증기발생기 2차측에서 만들어지는 고온 고압의 수증기를 원자력발전소 소내 전기로 분해하여 얻어지는 수소를 생산 저장함으로써 에너지원으로 활용할 수 있는 수소를 이용하는 원자력발전소의 에너지 저장시스템에 관한 것이다.The present invention relates to an energy storage system of a nuclear power plant using hydrogen which can be used as an energy source by producing and storing hydrogen obtained by decomposing high-temperature, high-pressure steam generated at the secondary side of a nuclear power plant steam generator into electricity within a nuclear power plant.

이를 위해 본 발명은 증기 발생기(500)에서 생성되는 수증기를 수소 생산부(1)에서 수소와 산소로 분리하여 각각의 저장탱크(2a,2b) 내에 저장하되, 상기 수소 생산부(1)는 증기 발생기(500)의 발생증기 일부가 소내전원(3)으로부터 공급되는 전기를 이용한 수증기 전기분해 전해질(4)을 통하여 수소와 산소로 분리되는데, 상기 수증기 전기분해 전해질(4)의 출구측 수소 수증기부(5)는 응축기(6)와 분리기(7)를 거쳐 수소 저장탱크(2a)에 저장되고, 이 분리기(7)에서 재순환되는 수소는 입구측 수소 수증기부(8)로 피드백되어 재차 이용되는 구조로 되어 있다.To this end, the present invention separates water vapor generated in the steam generator 500 into hydrogen and oxygen in the hydrogen production unit 1 and stores the hydrogen and oxygen in the respective storage tanks 2a and 2b, 500 is separated into hydrogen and oxygen through the steam electrolytic electrolyte 4 using electricity supplied from the in-house power supply 3. The hydrogen vapor in the outlet side of the steam electrolytic cell 4 Is stored in the hydrogen storage tank 2a via the condenser 6 and the separator 7 and the hydrogen recycled in the separator 7 is fed back to the inlet side hydrogen- have.

Description

수소를 이용한 원자력발전소의 에너지 저장시스템{Energy storage system of nuclear power plant}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an energy storage system for a nuclear power plant,

도 1은 본 발명이 적용되는 원자력발전소의 전력계통도,1 is a power system diagram of a nuclear power plant to which the present invention is applied,

도 2는 도 1에서 본 발명의 요부인 에너지 저장 시스템의 운전 구성도이다.FIG. 2 is an operation diagram of an energy storage system, which is a main part of the present invention, in FIG.

- 도면의 주요부분에 대한 부호의 설명 -Description of the Related Art [0002]

1 : 수소 생산부, 2a: 수소 저장탱크,1: hydrogen production unit, 2a: hydrogen storage tank,

2b: 산소 저장탱크, 3 : 소내전원,2b: an oxygen storage tank, 3: a domestic power supply,

4 : 수증기 전기분해 전해질, 5 : 출구측 수소 수증기부,4: a steam electrolysis electrolyte, 5: an outlet-side hydrogen-vapor part,

6 : 응축기, 7 : 분리기,6: condenser, 7: separator,

8 : 입구측 수소 수증기부,8: inlet hydrogen-vapor part,

100 : 주급수펌프, 200 : 원자로 냉각재 펌프,100: main feed pump, 200: reactor coolant pump,

300 : 원자로 압력용기, 400 : 가압기,300: reactor pressure vessel, 400: pressurizer,

500 : 증기발생기, 600 : 계통.500: steam generator, 600: system.

본 발명은 원자력발전소 증기발생기 2차측에서 만들어지는 고온 고압의 수증기를 원자력발전소 소내 전기로 분해하여 얻어지는 수소를 생산 저장함으로써 에너지원으로 활용할 수 있는 수소를 이용하는 원자력발전소의 에너지 저장시스템에 관한 것이다.The present invention relates to an energy storage system of a nuclear power plant using hydrogen which can be used as an energy source by producing and storing hydrogen obtained by decomposing high-temperature, high-pressure steam generated at the secondary side of a nuclear power plant steam generator into electricity within a nuclear power plant.

최근 자원고갈, 교토 의정서의 발효, 유가의 급등 등 급변하는 국제 에너지 환경속에서 신재생 에너지의 상대적인 경제성은 더욱 유리해 지고 있으며, 수소 ·연료전지, 태양전지 등 신에너지 기술에 기반한 에너지 시장은 IT, BT를 넘어서는 거대한 산업으로 급부상할 것으로 전망함에 따라, 미래 신에너지 산업에 대한 전세계적 개발 경쟁체제에 돌입하였으며, 우리는 세계시장 선점을 위한 국가적 대비가 필요한 실정이다.Recently, the relative economic efficiency of renewable energy has become more favorable in a rapidly changing international energy environment, such as the depletion of resources, the entry into the Kyoto Protocol, and the surge in oil prices. The energy market based on new energy technologies such as hydrogen, fuel cells, , And IT industry, we have entered into a global competition for development of future new energy industry. We need to prepare for global market competition.

한편 원자력발전소는 국가전력의 기저부하를 담당하는 중요한 발전소이나 1년 중에서 냉난방 전력수요가 감소하는 봄과 가을에 기저부하 전력설비 용량 이하로 전력수요가 떨어지는 때가 있는바, 이때 저렴하면서도 고품질의 여유증기와 전기를 수소에너지 형태로 저장하게 되면, 전력설비 이용률과 에너지 이용효율을 제고시킬 뿐만 아니라, 수소에너지 공급에도 기여할 수 있는 효과 등을 가지게 된다.On the other hand, the nuclear power plant is an important power plant responsible for the base load of the national power, but there are times when the demand for power is lower than the base load power facility capacity in spring and fall, Storing electricity in the form of hydrogen energy not only improves the utilization rate of electric power facilities and energy utilization efficiency, but also has an effect of contributing to supply of hydrogen energy.

이에 본 발명은 상기와 같은 이유로 인하여 발명된 것으로, 원자력발전소 증기 발생기에서 만들어지는 고온고압의 수증기를 소내전기로 분해하여 수소에너지로 저장할 수 있기 때문에 저렴한 생산단가를 가진 수소를 이용한 원자력발전소의 에너지 저장시스템을 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a nuclear power plant capable of decomposing high-temperature, high-pressure steam generated by a steam generator of a nuclear power plant into hydrogen, The system has a purpose to provide.

상기와 같은 목적을 달성하기 위한 본 발명은 원자로 압력용기와 가압기를 거쳐 증기발생기에서 발생된 고온고압의 수증기를 수소 생산부에서 수소와 산소로 분리하여 각각의 저장 탱크 내에 저장하되, 상기 수소 생산부는 증기 발생기의 발생 증기일부가 소내 전원으로부터 공급되는 전기를 이용한 수증기 전기분해 전해질을 통하여 산소와 수소로 분리되는데, 상기 수증기 전기분해 전해질의 출구측 수소·수증기는 응축기와 분리기를 거쳐 수소 저장탱크에 저장되고, 이 분리기에서 재순환되는 수소는 입구측 수소 수증기부로 피드백 되도록 이루어진 구조로 되어 있다.To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a steam generator for a steam generator, comprising: a steam generator for generating high- A portion of the generated steam of the generator is separated into oxygen and hydrogen through a steam electrolysis electrolyte using electricity supplied from a power source within the furnace. Hydrogen and steam at the outlet of the steam electrolysis electrolyte are stored in a hydrogen storage tank through a condenser and a separator , And hydrogen recirculated in the separator is fed back to the inlet hydrogen-vapor part.

이하, 본 발명은 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명이 원자력발전소에 적용된 상태도로서, 통상 원자력 발전은 도 1에 도시된 바와 같이 주급수펌프(100)와 원자로 냉각재 펌프(200)를 통하여 공급되는 냉각수가 원자로 압력용기(300)에서 수증기로 변하고, 이 수증기는 가압기(400)와 증기발생기(500)를 통하여 고온고압의 수증기를 생성시키어 터빈계통(600)을 돌리어 전기를 생산하도록 되어 있다.FIG. 1 is a state in which the present invention is applied to a nuclear power plant. As shown in FIG. 1, in the nuclear power plant, the cooling water supplied through the main feed pump 100 and the reactor coolant pump 200 is supplied to the reactor pressure vessel 300 And the water vapor is converted into steam to generate steam at a high temperature and a high pressure through the pressurizer 400 and the steam generator 500 to produce electricity by turning the turbine system 600.

본 발명은 상기 증기 발생기(500)에서 생성되는 수증기를 수소 생산부(1)에서 수소와 산소로 분리하여 각각의 저장탱크(2a,2b) 내에 저장하되, 상기 수소 생산부(1)는 증기 발생기(500)의 발생증기 일부가 소내전원(3)으로부터 공급되는 전기를 이용한 수증기 전기분해 전해질(4)을 통하여 수소와 산소로 분리되는데, 상기 수증기 전기분해 전해질(4)의 출구측 수소 수증기부(5)는 응축기(6)와 분리기(7)를 거쳐 수소 저장탱크(2a)에 저장되고, 이 분리기(7)에서 재순환되는 수소는 입구측 수소 수증기부(8)로 피드백되어 재차 이용되는 구조로 되어 있다.The present invention is characterized in that the steam generated in the steam generator 500 is separated into hydrogen and oxygen in the hydrogen production unit 1 and stored in the respective storage tanks 2a and 2b, Is partially separated into hydrogen and oxygen through the steam electrolytic electrolyte 4 using electricity supplied from the in-house power supply 3. The hydrogen vapor in the outlet 5 of the steam electrolytic cell 4, Is stored in the hydrogen storage tank 2a via the condenser 6 and the separator 7 and the hydrogen recirculated in the separator 7 is fed back to the inlet side hydrogen- .

여기서 원자로 압력용기(300)는 핵연료의 핵분열 과정에서 생성되는 열을 이용하여 생산하는 가압경수로형 원전을 기본으로 하였으며, 수증기는 증기 발생기(500)에서 생성되는 고온 고압의 수증기(H2O)로서 기저부하 이하로 떨어지는 여유전력 발생시 주증기관으로부터 증기를 추기하도록 되어 있다.Here, the reactor pressure vessel 300 is based on a pressurized light-water reactor type nuclear power plant that generates heat by using heat generated in the process of nuclear fission of nuclear fuel, and the water vapor is high-temperature high-pressure water vapor (H 2 O) generated in the steam generator 500 When excess power falls below the base load, steam is added from the main engine.

그리고, 본 발명의 요부인 도 2의 수소 생산부(1)는 고온 고압의 수증기를 전기분해하여 수소(H2)와 산소(O2)를 생산하는바, 고온의 증기는 도체 양극 멤브레인에 산소를 이온화시키면서 분리되어 수증기와 수소가 일정비율로서 수증기 전기분해 전해질(4)로 입력되고, 생선된 수소와 증기가 함께 배출되는데, 이때 수소는 응축기(6)를 통과하면서 수증기와 분리되며 다시 일정 비율의 반응비를 만들기 위해 수증기 내의 수소 중 일부를 제거한 후 수증기 전기분해 전해질(4)로 입력된다.2, which is a main part of the present invention, produces hydrogen (H 2 ) and oxygen (O 2 ) by electrolyzing water vapor of high temperature and high pressure, and the high temperature steam generates oxygen The water vapor and the hydrogen are separated and separated from each other while being ionized, and the water vapor and the hydrogen are inputted into the water electrolysis electrolyte 4 at a predetermined ratio, and the hydrogen gas and the steam are discharged together. At this time, the hydrogen is separated from the water vapor while passing through the condenser 6, After removing some of the hydrogen in the water vapor to form a reaction ratio, it is input to the steam electrolysis electrolyte (4).

한편, 상기 수증기 전기분해 전해질(4)은 Ni/YSZ 복합체 또는 산화지르코늄의 전극 멤브레인과 YSZ 전해질로 구성된 전기분해 장치로서 소내전원(3)에 의해 공급되는 전기가 흘러들어가면 수증기는 수소와 산소로 분해된다.On the other hand, the steam electrolysis electrolyte 4 is an electrolytic device composed of a Ni / YSZ composite or an electrode membrane of zirconium oxide and a YSZ electrolyte. When electricity supplied by the power source 3 flows into the water vapor electrolytic cell 4, do.

또한 상기 응축기(6)는 수증기 전기분해 전해질(4)의 양극(+)에서 수소와 수증기가 함께 배출되기 때문에 수증기 제거를 위함이며, 분리기(7)는 수증기가 제거된 수소를 수소 저장탱크(2a)와 입구측 수소 수증기부(8)로 보내기 위한 장치이다.The condenser 6 is for removing steam because the hydrogen and the water vapor are discharged together from the anode (+) of the steam electrolysis electrolyte 4. The separator 7 separates the hydrogen from the water vapor into the hydrogen storage tank 2a To the inlet-side hydrogen-vapor part (8).

상기 수소 저장탱크(2a)는 분리기(7)에서 배출한 순수한 수소를 저장하는 탱크이고, 산소 저장탱크(2b)는 수증기 전기분해 전해질(4)의 음극(-)에서 생성된 산 소를 저장하는 탱크이다.The hydrogen storage tank 2a is a tank for storing pure hydrogen discharged from the separator 7 and the oxygen storage tank 2b is a tank for storing oxygen generated from the cathode (-) of the steam electrolysis electrolyte 4 It is a tank.

상기와 같이 본 발명에 따른 수소를 이용한 원자력 발전소의 에너지 저장시스템은 다음과 같은 유, 무형의 효과를 지닌다.As described above, the energy storage system of a nuclear power plant using hydrogen according to the present invention has the following advantages.

◎ 유형의 효과◎ Effect of type

- 원자력발전소의 여유전력 및 증기를 수소에너지 형태로 저장함으로써 전력설비 이용률 및 에너지 경제성 제고.- To increase the utilization rate of electric power facilities and energy economy by storing the spare power and steam of nuclear power plant in the form of hydrogen energy.

- CO2 등 온실가스를 발생시키지 않는 청정 에너지원으로부터 저렴한 수소 및 산소 생산.- Production of inexpensive hydrogen and oxygen from clean energy sources that do not generate greenhouse gases such as CO 2 .

◎ 무형의 효과◎ Intangible effects

- 원자력발전소의 에너지 저장 및 안보개념 도입.- Introduction of energy storage and security concept of nuclear power plant.

- 수소시대를 대비하여 기존 인프라를 이용한 수소 생산수단 확보.- Securing hydrogen production means using existing infrastructure in preparation for hydrogen era.

Claims (2)

증기 발생기(500)에서 생성되는 수증기를 수소 생산부(1)에서 수소와 산소로 분리하여 각각의 저장탱크(2a,2b) 내에 저장하는 수소를 이용한 원자력 발전소의 에저니 저장시스템에 있어서, An azurine storage system for a nuclear power plant using hydrogen for separating water vapor generated in a steam generator (500) into hydrogen and oxygen in a hydrogen production unit (1) and storing the hydrogen and oxygen in respective storage tanks (2a, 2b) 상기 수소 생산부(1)는 증기 발생기(500)의 발생증기 일부가 소내전원(3)으로부터 공급되는 전기를 이용한 수증기 전기분해 전해질(4)을 통하여 수소와 산소로 분리되는데, 상기 수증기 전기분해 전해질(4)의 출구측 수소 수증기부(5)는 응축기(6)와 분리기(7)를 거쳐 수소저장탱크(2a)에 저장되고, 이 분리기(7)에서 재순환되는 수소는 입구측 수소 수증기부(8)로 피드백되어 재차 이용되는 구조로 이루어진 수소를 이용한 원자력 발전소의 에너지 저장시스템.The hydrogen producing unit 1 separates the generated steam of the steam generator 500 into hydrogen and oxygen through the steam electrolysis electrolyte 4 using electricity supplied from the in-house power supply 3, 4 is stored in the hydrogen storage tank 2a via the condenser 6 and the separator 7 and the hydrogen recycled in the separator 7 is supplied to the inlet side hydrogen- ) To be used again, and the energy storage system of a nuclear power plant using hydrogen. 삭제delete
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06276701A (en) * 1993-03-22 1994-09-30 Kansai Electric Power Co Inc:The Electric power storing device
KR20000061954A (en) * 1999-03-31 2000-10-25 천성필 Occurrence apparatus for hydrogen oxygen mixing gas
JP2005232523A (en) * 2004-02-18 2005-09-02 Ebara Corp Hydrogen production system in nuclear power generation plant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06276701A (en) * 1993-03-22 1994-09-30 Kansai Electric Power Co Inc:The Electric power storing device
KR20000061954A (en) * 1999-03-31 2000-10-25 천성필 Occurrence apparatus for hydrogen oxygen mixing gas
JP2005232523A (en) * 2004-02-18 2005-09-02 Ebara Corp Hydrogen production system in nuclear power generation plant

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