KR101224026B1 - Passive residual heat removal system using passive auxiliary feed-water system for pressurized water reactor - Google Patents

Passive residual heat removal system using passive auxiliary feed-water system for pressurized water reactor Download PDF

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KR101224026B1
KR101224026B1 KR1020110091583A KR20110091583A KR101224026B1 KR 101224026 B1 KR101224026 B1 KR 101224026B1 KR 1020110091583 A KR1020110091583 A KR 1020110091583A KR 20110091583 A KR20110091583 A KR 20110091583A KR 101224026 B1 KR101224026 B1 KR 101224026B1
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passive
pipe
water supply
reactor
auxiliary water
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KR1020110091583A
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Korean (ko)
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김문수
강상희
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한국수력원자력 주식회사
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
    • G21C15/24—Promoting flow of the coolant
    • G21C15/257—Promoting flow of the coolant using heat-pipes
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
    • G21C15/18—Emergency cooling arrangements; Removing shut-down heat
    • G21C15/182—Emergency cooling arrangements; Removing shut-down heat comprising powered means, e.g. pumps
    • 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
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0054—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for nuclear applications
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C1/00—Reactor types
    • G21C1/04—Thermal reactors ; Epithermal reactors
    • G21C1/06—Heterogeneous reactors, i.e. in which fuel and moderator are separated
    • G21C1/08—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling water reactor, integral super-heat reactor, pressurised water reactor
    • G21C1/086—Pressurised water 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
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

PURPOSE: A passive residual heat removal system using a passive auxiliary feed-water system for a pressurized water reactor is provided to perform the passive residual-heat removal function by using a water tub and a heat exchanger of a passive auxiliary feedwater system. CONSTITUTION: A cooling system is connected to a passive auxiliary feedwater system. The passive auxiliary feedwater system includes a steam generator(10), a condensation bath(30), a vapor supplying pipe(11), and a condensed water recovery pipe(12). The cooling system comprises a nuclear reactor(1), a cool pipe(3), and a hot temperature pipe(5). The hot temperature pipe and the vapor supplying pipe are connected to a condenser connection pipe(18). The cool pipe and the condensed water recovery pipe are connected to a condensed water extraction pipe(19).

Description

피동보조 급수계통을 이용한 경수로의 피동 잔열제거계통{Passive residual heat removal system using passive auxiliary feed-water system for pressurized water reactor}Passive residual heat removal system using passive auxiliary feed-water system for pressurized water reactor}

본 발명은 경수로의 피동 잔열제거계통에 관한 것으로서, 특히 격납용기 내의 일차측의 피동 냉각기능을 수행할 수 있도록 된 피동보조 급수계통을 이용한 경수로의 피동 잔열제거계통에 관한 것이다. The present invention relates to a passive residual heat removal system of a light water reactor, and more particularly, to a passive residual heat removal system of a light water reactor using a passive auxiliary water supply system capable of performing a passive cooling function of a primary side in a containment vessel.

현재 가동중인 경수로는 일반적으로 원자로 사고 후 급수계통이 작동하지 않을 경우, 펌프를 이용하는 보조급수계통이 작동하여 원자로의 잔열을 증기발생기를 통해 제거하고 있다. 펌프를 사용하는 보조급수계통은 운전원의 실수, 전원상실, 펌프의 오작동 등에 의해 실패의 가능성이 있다. Currently, the light water reactors currently in operation are generally operated after the reactor accident, in which the water supply system does not operate, and a subwater supply system using a pump is activated to remove residual heat of the reactor through the steam generator. The auxiliary water supply system using the pump is likely to fail due to operator error, power loss, malfunction of the pump, and so on.

이러한 문제점을 해결하기 위해 원자로 사고 시 증기발생기의 이차측에서 발생하는 증기를 응축하여 원자로 잔열을 피동적으로 냉각함으로써, 원자력발전소의 안전성과 경제성을 높일 수 있는 피동형 이차 응축계통의 개념이 제안되고 있다. In order to solve this problem, the concept of a passive secondary condensation system that can increase the safety and economics of nuclear power plants by passively cooling the residual heat of the reactor by condensing the steam generated in the secondary side of the steam generator during a reactor accident has been proposed.

도 1은 종래의 피동 잔열제거계통을 개괄적으로 도시한 도면이다. 도 1에 도시한 바와 같이, 피동 잔열제거계통은 원자력발전소에서 격납용기(미도시) 내 원자로(1: reactor vessel)와 연결된 증기발생기(10), 재장전 수조탱크(50) 및 가압기(60; pressurizer)로 구성된다. 1 is a view schematically showing a conventional passive residual heat removal system. As shown in FIG. 1, the passive residual heat removal system includes a steam generator 10 connected to a reactor vessel 1, a reload water tank 50, and a pressurizer 60 in a nuclear power plant (not shown). pressurizer).

이러한 종래의 피동 잔열제거계통의 작동에 대해 간략히 설명하면, 대형 냉각재 상실사고 같은 냉각재 유출 사고 시, 상기 가압기(60)의 압력이 급격히 감압되어 원자로 냉각재의 압력이 상기 재장전 수조탱크(50)와 원자로 냉각재 계통의 수두차 이하로 감소되면, 상기 재장전 수조탱크(50) 내에 설치된 열교환기에 고온의 일차측 냉각수가 주입되고 상기 재장전 수조탱크(50)에서 열교환을 통해 자연대류방식에 의해 노심과 원자로(1)의 잔열을 제거한다. When the operation of the conventional passive residual heat removal system is briefly described, in the case of a coolant leakage accident such as a large coolant loss accident, the pressure of the pressurizer 60 is suddenly reduced so that the pressure of the reactor coolant is reduced with the reload tank 50. When the temperature of the reactor coolant system is reduced to less than or equal to the water head difference, a high-temperature primary coolant is injected into the heat exchanger installed in the reloading tank 50, and the core and the core are heated by natural convection through heat exchange in the reloading tank 50. Residual heat of the reactor 1 is removed.

그러나, 종래의 피동 잔열제거계통은 격납건물 내에 재장전 수조탱크(50)를 일차측보다 높게 설치해야 하는 단점, 격납건물 내에 전용 배관 및 상기 재장전 수조탱크(50)에 전용의 열교환기를 설치해야 하는 단점이 있다. However, the conventional passive residual heat removal system has the disadvantage that the reload tank tank 50 must be installed higher than the primary side in the containment building, the dedicated pipe in the containment building and a dedicated heat exchanger should be installed in the reload tank tank 50. There is a disadvantage.

한편, 또 다른 피동 잔열제거계통 관련기술로서, 피동형 냉각계통을 이차측에서 증기발생기에 연결하여 원자로에서 발생하는 잔열을 증기발생기를 통해 제거하도록 하는 가압경수로의 피동형 이차측 응축계통이 알려져 있다(특허문헌1 참조). On the other hand, as another related technology of passive residual heat removal system, a passive secondary side condensation system of a pressurized water reactor which connects the passive cooling system to the steam generator on the secondary side to remove residual heat generated in the reactor through the steam generator is known (patent See Document 1).

특허문헌1 : 한국등록특허 10-0261752 Patent Document 1: Korea Patent Registration 10-0261752

이에 본 발명은 상기와 같은 문제점을 해결하기 위한 것으로서, 격납용기 내의 일차측 피동 냉각기능을 수행할 수 있도록 된 피동보조 급수계통을 이용한 경수로의 피동 잔열제거계통을 제공하는데 그 목적이 있다. Accordingly, an object of the present invention is to provide a passive residual heat removal system of a hard water reactor using a passive auxiliary water supply system capable of performing a primary passive cooling function in a containment vessel.

상기와 같은 목적을 달성하기 위하여 본 발명에 따른 피동보조 급수계통을 이용한 경수로의 피동 잔열제거계통은, 격납용기 내의 일차측 피동 냉각기능을 수행할 수 있도록 된 계통으로서, 피동보조 급수계통과; 상기 피동보조 급수계통과 연결되는 격납용기 내 일차측 냉각계통을 포함하여 이루어지고, 상기 피동보조 급수계통과 격납용기 내 일차측 냉각계통의 열교환을 통해 격납용기 내의 일차측 피동 냉각기능이 가능하도록 되어 있고, 상기 피동보조 급수계통은, 원자로의 열에 의해 증기를 발생시키는 증기발생기와; 냉각수가 충진되며 냉각수 내에는 상기 증기발생기에서 발생되는 증기를 상부 모관에 공급받고, 하부 모관을 통해 응축수를 배출하는 직선구간의 일부 또는 전부가 경사지게 형성된 격리 응축기 튜브를 포함하는 열교환기가 위치하고 있는 응축수조와; 상기 증기발생기에서 발생되는 증기를 상기 열교환기로 공급하기 위한 증기 공급배관과; 상기 열교환기의 응축수를 상기 증기발생기로 공급하기 위한 응축수 회수배관을 포함하여 이루어지고, 상기 격납용기 내 일차측 냉각계통은, 원자로, 저온관 및 고온관을 포함하여 이루어지고, 상기 일차측 냉각계통의 고온관과 상기 피동보조 급수계통의 증기 공급배관은 잔열 제거 필요시 개방되는 개폐밸브가 중간에 설치되어 있는 응축기 연결관으로 연결되어 있고, 상기 일차측 냉각계통의 저온관과 상기 피동보조 급수계통의 응축수 회수배관은 잔열 제거 필요시 개방되는 개폐밸브가 중간에 설치되어 있는 응축수 추출관으로 연결되는 것을 특징으로 한다. In order to achieve the above object, the passive residual heat removal system of a hard water reactor using the passive auxiliary water supply system according to the present invention includes a passive auxiliary water supply system as a system capable of performing a primary side passive cooling function in a containment vessel; It comprises a primary side cooling system in the containment container connected to the passive auxiliary water supply system, and the primary side passive cooling function in the containment vessel is enabled through heat exchange between the passive auxiliary water supply system and the primary side cooling system in the containment vessel. The passive auxiliary water supply system includes: a steam generator for generating steam by heat of the reactor; Cooling water is filled in the condensate tank in which the heat exchanger comprising an isolated condenser tube in which the steam generated from the steam generator is supplied to the upper capillary, the straight section for discharging condensate through the lower capillary is inclined; ; A steam supply pipe for supplying steam generated in the steam generator to the heat exchanger; And a condensate return pipe for supplying the condensed water of the heat exchanger to the steam generator, wherein the primary side cooling system in the containment vessel includes a reactor, a low temperature tube, and a high temperature tube, and the primary side cooling system. The high temperature pipe of and the steam supply pipe of the passive auxiliary water supply system are connected to a condenser connecting pipe having an opening / closing valve installed in the middle when residual heat removal is required, and the low temperature pipe of the primary cooling system and the passive auxiliary water supply system. The condensate return pipe is characterized in that connected to the condensate extraction pipe is installed in the middle of the on-off valve is opened when the residual heat is removed.

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본 발명에 따르면, 피동보조 급수계통의 수조와 열교환기를 이용함으로써 간단한 구조로 일차측의 피동 잔열제거기능을 수행할 수가 있다. According to the present invention, the passive residual heat removal function of the primary side can be performed with a simple structure by using the water tank and the heat exchanger of the driven auxiliary water supply system.

도 1은 종래의 피동 잔열제거계통을 개괄적으로 도시한 도면.
도 2는 본 발명에 따른 피동보조 급수계통을 이용한 경수로의 피동 잔열제거계통을 개략적으로 도시한 구성도. 1 is a view schematically showing a conventional passive residual heat removal system.
Figure 2 is a schematic diagram showing a passive residual heat removal system of a light water reactor using a passive auxiliary water supply system according to the present invention.

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

본 발명에 따른 피동보조 급수계통을 이용한 경수로의 피동 잔열제거계통은, 격납용기 내의 일차측 피동 냉각기능을 수행할 수 있도록, 크게 피동보조 급수계통(PAFS; Passive Auxiliary Feed-water System) 및 상기 피동보조 급수계통과 연결되는 격납용기 내 일차측 냉각계통을 포함하여 이루어지는데, 상기 피동보조 급수계통과 격납용기 내 일차측 냉각계통의 열교환을 통해 격납용기 내의 일차측의 피동 냉각기능이 가능하도록 되어 있다. The passive residual heat removal system of the hard water reactor using the passive auxiliary water supply system according to the present invention is largely passive passive water supply system (PAFS) and passive to perform the primary passive cooling function in the containment vessel. It comprises a primary cooling system in the containment vessel connected to the auxiliary water supply system, the passive cooling function of the primary side in the containment vessel is enabled through heat exchange between the passive auxiliary water supply system and the primary cooling system in the containment vessel. .

구체적으로, 상기 피동보조 급수계통은, 원자로의 열에 의해 증기를 발생시키는 증기발생기(10) 및 냉각수가 충진되며 냉각수 내에는 상기 증기발생기(10)에서 발생되는 증기를 상부 모관에 공급받고, 하부 모관을 통해 응축수를 배출하는 직선구간의 일부 또는 전부가 경사지게 형성된 격리 응축기 튜브(7)를 포함하는 열교환기(20)가 위치하고 있는 응축수조(30)를 구비한다. Specifically, the passive auxiliary water supply system is filled with the steam generator 10 and the cooling water to generate steam by the heat of the reactor, the cooling water is supplied to the upper mother pipe to the steam generated by the steam generator 10, the lower mother pipe It is provided with a condensate tank 30 in which a heat exchanger 20 including an isolated condenser tube 7 formed inclined part or all of the straight section for discharging condensate through.

그리고, 상기 피동보조 급수계통은, 상기 증기발생기(10)에서 발생되는 증기를 상기 열교환기(20)로 공급하기 위한 증기 공급배관(11) 및 상기 열교환기(20)의 응축수를 상기 증기발생기(10)로 공급하기 위한 응축수 회수배관(12)을 포함하여 이루어진다. The passive auxiliary water supply system includes a steam supply pipe 11 for supplying steam generated from the steam generator 10 to the heat exchanger 20, and condensed water from the heat exchanger 20. 10) comprises a condensate recovery pipe 12 for supplying.

상기 격납용기 내 일차측 냉각계통은, 원자로(1), 저온관(Cold leg:3) 및 고온관(Hot leg:5)을 포함하여 이루어진다. The primary cooling system in the containment vessel includes a reactor 1, a cold leg 3 and a hot leg 5.

그리고, 상기 격납용기 내 일차측 냉각계통의 고온관(5)과 상기 피동보조 급수계통의 증기 공급배관(11)은 잔열 제거 필요시 개방되는 개폐밸브(V20)가 중간에 설치되어 있는 응축기 연결관(18)으로 연결된다. In addition, the high temperature pipe 5 of the primary side cooling system and the steam supply pipe 11 of the driven auxiliary water supply system in the containment vessel are connected to a condenser connecting pipe having an opening / closing valve (V20) installed in the middle when it is necessary to remove residual heat. Connected to (18).

그리고, 상기 격납용기 내 일차측 냉각계통의 저온관(3)과 상기 피동보조 급수계통의 응축수 회수배관(12)은 잔열 제거 필요시 개방되는 개폐밸브(V21)가 중간에 설치되어 있는 응축수 추출관(19)으로 연결된다. In addition, the low temperature pipe (3) of the primary cooling system in the containment vessel and the condensate recovery pipe (12) of the driven auxiliary water supply system (12) is a condensate extraction pipe having an opening / closing valve (V21) installed in the middle to remove residual heat. Connected to (19).

본 실시예에서 상기 저온관(3)과 고온관(5)이 각각 응축수 회수 배관(12) 및 증기 공급배관(11)에 연결되는 것으로 설명하였지만, 이에 한정되거나 제한되는 것은 아니며, 예를 들면 상기 열교환기(20)와 직접 연결되는 것도 가능함은 물론이다. 다시 말하면, 상기 저온관(3)와 연결된 상기 응축수 추출관(19)이 상기 열교환기(20)의 상기 격리 응축기 튜브(7)와 연결되고, 상기 고온관(5)과 연결된 상기 응축기 연결관(18)이 상기 열교환기(20)와 직접 연결되도록 하는 것도 가능하다. Although the low temperature tube 3 and the high temperature tube 5 in the present embodiment have been described as being connected to the condensate recovery pipe 12 and the steam supply pipe 11, respectively, the present invention is not limited or limited thereto. Of course, it is also possible to be connected directly to the heat exchanger (20). In other words, the condensate extraction tube 19 connected to the cold tube 3 is connected to the isolation condenser tube 7 of the heat exchanger 20, and the condenser connection tube connected to the hot tube 5 ( It is also possible for 18 to be directly connected to the heat exchanger 20.

이제, 본 발명에 따른 피동보조 급수계통을 이용한 경수로의 피동 잔열제거계통의 작동을 설명하면 다음과 같다. Now, the operation of the passive residual heat removal system of the hard water reactor using the passive auxiliary water supply system according to the present invention will be described.

먼저, 응급 잔열 제거 신호가 발생하면 상기 응축수 추출관(19)에 배치된 개폐밸브(V21) 및 상기 응축기 연결관(18)에 배치된 개폐밸브(V20)가 개방된다. First, when an emergency residual heat removal signal is generated, the on / off valve V21 disposed on the condensate extraction pipe 19 and the on / off valve V20 disposed on the condenser connection pipe 18 are opened.

이후에, 상기 격리 응축기 튜브(7)에 축적된 응축수가 중력에 의해 상기 응축기 추출관(19)을 통해 상기 저온관(3)으로 유입되고, 동시에 상기 고온관(5)에 연결된 상기 응축기 연결관(18)을 통해 고온의 증기가 상기 열교환기(20)로 유입되어 응축되면서 다시 상기 격리 응축기 튜브(7)에서 응축수로 변환되어 상기 응축기 추출관(19)을 통해 배출되어 전체적으로 폐회로 순환을 하며 일차측 내부의 잔열을 제거하게 된다. Thereafter, the condensate accumulated in the isolation condenser tube 7 flows into the low temperature tube 3 through the condenser extraction tube 19 by gravity, and is connected to the condenser connecting tube at the same time. The high temperature steam is introduced into the heat exchanger 20 through the condenser 20, and condensed into the condensate from the isolation condenser tube 7 and discharged through the condenser extraction tube 19 to circulate in a closed loop. The residual heat inside the vehicle side is removed.

이와 같이, 본 발명에 따르면 피동보조 급수계통의 수조와 열교환기를 이용함으로써 간단한 구조로 격납용기 내 일차측의 피동 잔열 제거 기능을 수행할 수가 있다. As described above, according to the present invention, by using the water tank and the heat exchanger of the driven auxiliary water supply system, the passive residual heat removal function of the primary side in the containment vessel can be performed.

한편, 본 발명에 따른 피동보조 급수계통을 이용한 경수로의 피동 잔열제거계통을 한정된 실시예에 따라 설명하였지만, 본 발명의 범위는 특정 실시예에 한정되는 것은 아니며, 본 발명과 관련하여 통상의 지식을 가진자에게 자명한 범위내에서 여러 가지의 대안, 수정 및 변경하여 실시할 수 있다. On the other hand, although the passive residual heat removal system of the hard water reactor using the passive auxiliary water supply system according to the present invention has been described according to a limited embodiment, the scope of the present invention is not limited to a specific embodiment, it is a common knowledge in connection with the present invention Various alternatives, modifications, and changes can be made within the scope obvious to the person having it.

따라서, 본 발명에 개시된 실시예 및 첨부된 도면들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예 및 첨부된 도면에 의하여 본 발명의 기술 사상의 범위가 한정되는 것은 아니다. 본 발명의 보호 범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

1 : 원자로 3 : 저온관
5 : 고온관 7 : 격리 응축기 튜브
10 : 증기발생기 11 : 증기 공급배관
12 : 응축수 회수배관 18 : 응축기 연결관
19 : 응축수 추출관 20 : 열교환기
30 : 응축수조 V20,V21 : 개폐밸브1: reactor 3: cold tube
5: high temperature tube 7: isolation condenser tube
10: steam generator 11: steam supply piping
12 condensate recovery pipe 18 condenser connection pipe
19: condensate extraction tube 20: heat exchanger
30: condensate tank V20, V21: on-off valve

Claims (3)

삭제delete 삭제delete 격납용기 내의 일차측 피동 냉각기능을 수행할 수 있도록 된 계통으로서,
피동보조 급수계통과;
상기 피동보조 급수계통과 연결되는 격납용기 내 일차측 냉각계통을 포함하여 이루어지고,
상기 피동보조 급수계통과 격납용기 내 일차측 냉각계통의 열교환을 통해 격납용기 내의 일차측 피동 냉각기능이 가능하도록 되어 있고,
상기 피동보조 급수계통은,
원자로의 열에 의해 증기를 발생시키는 증기발생기(10)와;
냉각수가 충진되며 냉각수 내에는 상기 증기발생기(10)에서 발생되는 증기를 상부 모관에 공급받고, 하부 모관을 통해 응축수를 배출하는 직선구간의 일부 또는 전부가 경사지게 형성된 격리 응축기 튜브(7)를 포함하는 열교환기(20)가 위치하고 있는 응축수조(30)와;
상기 증기발생기(10)에서 발생되는 증기를 상기 열교환기(20)로 공급하기 위한 증기 공급배관(11)과;
상기 열교환기(20)의 응축수를 상기 증기발생기(10)로 공급하기 위한 응축수 회수배관(12)을 포함하여 이루어지고,
상기 격납용기 내 일차측 냉각계통은,
원자로(1), 저온관(3) 및 고온관(5)을 포함하여 이루어지고,
상기 일차측 냉각계통의 고온관(5)과 상기 피동보조 급수계통의 증기 공급배관(11)은 잔열 제거 필요시 개방되는 개폐밸브(V20)가 중간에 설치되어 있는 응축기 연결관(18)으로 연결되어 있고,
상기 일차측 냉각계통의 저온관(3)과 상기 피동보조 급수계통의 응축수 회수배관(12)은 잔열 제거 필요시 개방되는 개폐밸브(V21)가 중간에 설치되어 있는 응축수 추출관(19)으로 연결되어 있는 것을 특징으로 하는 피동보조 급수계통을 이용한 경수로의 피동 잔열제거계통. It is a system that enables to perform the primary passive cooling function in the containment vessel.
Driven auxiliary water system;
It comprises a primary cooling system in the containment vessel connected to the passive auxiliary water supply system,
Through the heat exchange of the passive auxiliary water supply system and the primary side cooling system in the containment vessel, the primary side passive cooling function in the containment vessel is enabled.
The driven auxiliary water supply system,
A steam generator 10 generating steam by heat of the reactor;
Cooling water is filled and the cooling water is provided with the steam generated from the steam generator 10 to the upper capillary, and includes an isolated condenser tube (7) formed inclined part or all of the straight section to discharge the condensate through the lower capillary A condensate tank 30 in which the heat exchanger 20 is located;
A steam supply pipe (11) for supplying steam generated in the steam generator (10) to the heat exchanger (20);
It comprises a condensate recovery pipe 12 for supplying the condensed water of the heat exchanger 20 to the steam generator 10,
The primary cooling system in the containment vessel,
It comprises a reactor (1), low temperature tube (3) and high temperature tube (5),
The high temperature pipe 5 of the primary cooling system and the steam supply pipe 11 of the driven auxiliary water supply system are connected to a condenser connecting pipe 18 having an opening / closing valve V20 that is opened in the middle when residual heat is required to be removed. It is,
The low temperature pipe 3 of the primary cooling system and the condensate recovery pipe 12 of the driven auxiliary water supply system are connected to a condensate extraction pipe 19 having an opening / closing valve V21 that is opened when residual heat is required to be removed. Passive residual heat removal system of a light water reactor using a passive auxiliary water supply system characterized in that the.
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KR101407129B1 (en) * 2013-04-05 2014-06-13 한국원자력연구원 Passive residual heat removal system of an open-pool type research reactor
CN109801722A (en) * 2019-01-25 2019-05-24 中广核工程有限公司 The heat transfer experiments method and system of nuclear power plant SEU system plate heat exchanger

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JP2010085282A (en) * 2008-09-30 2010-04-15 Toshiba Corp Nuclear power plant of pressurized water type
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JP2010085282A (en) * 2008-09-30 2010-04-15 Toshiba Corp Nuclear power plant of pressurized water type
KR20100134277A (en) * 2009-06-15 2010-12-23 한국수력원자력 주식회사 Passive secondary loop condensation system for light water reactor

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Publication number Priority date Publication date Assignee Title
KR101407129B1 (en) * 2013-04-05 2014-06-13 한국원자력연구원 Passive residual heat removal system of an open-pool type research reactor
CN109801722A (en) * 2019-01-25 2019-05-24 中广核工程有限公司 The heat transfer experiments method and system of nuclear power plant SEU system plate heat exchanger
CN109801722B (en) * 2019-01-25 2020-08-11 中广核工程有限公司 Heat exchange test method and system for plate heat exchanger of SEU (continuous emission unit) system of nuclear power plant

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