KR101796450B1 - Fluid diode for Printed Circuit Steam Generator in Sodium-cooled Fast Reactor - Google Patents

Fluid diode for Printed Circuit Steam Generator in Sodium-cooled Fast Reactor Download PDF

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KR101796450B1
KR101796450B1 KR1020170099618A KR20170099618A KR101796450B1 KR 101796450 B1 KR101796450 B1 KR 101796450B1 KR 1020170099618 A KR1020170099618 A KR 1020170099618A KR 20170099618 A KR20170099618 A KR 20170099618A KR 101796450 B1 KR101796450 B1 KR 101796450B1
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steam generator
airfoil
sodium
fluid
printed circuit
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KR1020170099618A
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Korean (ko)
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이재영
성준영
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한동대학교 산학협력단
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/02Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/023Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers with heating tubes, for nuclear reactors as far as they are not classified, according to a specified heating fluid, in another group
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/002Component parts or details of steam boilers specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/42Applications, arrangements, or dispositions of alarm or automatic safety devices

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Abstract

The present invention relates to a fluid diode for a printed circuit steam generator (PCSG) in a fast sodium-cooled reactor. According to the present invention, the PCSG improves heat transmission performance and high-pressure stability and is practically applied to the fast sodium-cooled reactor which is one among influential candidates of a Gen IV. Multiple airfoil blocks installed in the steam generator (housing) is formed in a one-way fluid path type streamlined structure. So, there is no interference factor in a flow path in a case that a fluid flows in a normal direction. A reverse flow prevention groove capable of generating swirl in the flow path when reverse pressure is applied is formed and operated to have a large pressure loss. Therefore, the fluid diode for the printed circuit steam generator can effectively suppress that the fluid flows in a reverse direction in an emergency situation. So, the fluid diode for the printed circuit steam generator always enables stable operation and can remarkably improve reliability of using a fast reactor.

Description

소듐 고속 냉각로의 인쇄기판형 증기발생기용 유체 다이오드{Fluid diode for Printed Circuit Steam Generator in Sodium-cooled Fast Reactor}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fluid diode for a flat plate type steam generator,

본 발명은 열전달 성능과 고압 안정성이 개선된 인쇄기판형 증기발생기(Printed Circuit Steam Generator, PCSG)에 관한 것으로, 이는 4세대 원자로의 유력한 후보 중 하나인 소듐 냉각 고속원자로에 실질적인 적용을 도모함에 있어서, 증기발생기(함체) 내에 구비된 다수개의 에어포일(Airfoil) 블럭은 단방향 유로형 유선형 구조로 형성되어 정방향으로 유체가 이동할 경우에는 유동 경로에 방해 요소가 없지만, 역압력이 가해지는 상황에서는 유동경로에 스월(Swirl)을 발생시킬 수 있도록 하는 역류방지홈이 형성되어 압력손실이 크게 작동하도록 하는 바, 이는 비상 상황시 역방향으로 유체가 이동하는 것을 효율적으로 저지하여 상시 안정적인 운전이 가능하도록 함은 물론 이에 고속원자로의 사용 신뢰성이 크게 향상되도록 하는 것을 특징으로 하는 소듐 고속 냉각로의 인쇄기판형 증기발생기용 유체 다이오드에 관한 것이다.The present invention relates to a Printed Circuit Steam Generator (PCSG) with improved heat transfer performance and high-pressure stability, which is useful in practical application to sodium-cooled high-speed reactors, one of the strong candidates for fourth generation reactors, The plurality of airfoil blocks provided in the generator (enclosure) are formed in a unidirectional flow-path-like stream-like structure. When the fluid moves in the forward direction, there is no obstacle in the flow path. However, Backward flow preventing grooves are formed to generate swirls so that the pressure loss can be greatly increased. In this way, it is possible to effectively prevent the fluid from moving in the reverse direction in the event of an emergency, thereby enabling stable operation at all times, And the reliability of use of the reactor is greatly improved. The press plate to the steam generating relates to appointed fluid diode.

일반적으로 원자력 발전에서는 우라늄과 같은 물질의 핵이 가지고 있는 막대한 에너지를 이용한다. In general, nuclear power plants use enormous amounts of energy possessed by the nuclei of materials such as uranium.

원자핵이 분열되거나 융합될 때 발생되는 원자력 에너지를 천천히 발산시켜 전기에너지로 변환시키기 위하여 가압 경수로, 가압 중수로, 고속로 등 다양한 형태의 원자로가 이용되고 있으며, 소듐과 같은 액체 금속을 냉각재로 이용하는 고속 증식로(Fast Breeder Reactor)로서 소듐 냉각 고속로(Sodium Cooled Fast Reactor; SFR)가 개발되어 사용되기도 한다.Various types of reactors such as pressurized light water reactor, pressurized heavy water reactor and high-speed reactor are used to slowly convert the atomic energy generated when the atomic nucleus is divided or fused into electrical energy. In addition, fast reactors using liquid metal such as sodium as a coolant Sodium Cooled Fast Reactor (SFR) has been developed and used as a Fast Breeder Reactor.

한편, 이러한 소듐 냉각 고속로의 경우, 물을 이용하여 증기를 발생시키는 증기발생기를 구비한다. On the other hand, in the case of such a sodium-cooled high-speed furnace, a steam generator for generating steam using water is provided.

이때, 상기 증기발생기는 물이 주입되는 복수의 전열관을 구비함으로써, 고온의 소듐에 의해 증기가 발생된다.At this time, the steam generator includes a plurality of heat transfer tubes through which water is injected, so that steam is generated by the high temperature sodium.

이를 보다 자세히 살펴보면, 도 4에서 보는 바와 같이 일반적인 소듐 냉각 고속로는 코어(Core)와 1차 열전달계통(Primary sodium), 중간열전달계통(IHTS) 및 증기발생기(Steam Generator) 그리고 터빈(Turbine)으로 크게 구성되어 전기를 생산하도록 형성된다.As shown in FIG. 4, a typical sodium-cooled high-speed furnace includes a core, a primary sodium, an intermediate heat transfer system (IHTS), a steam generator, and a turbine And is formed so as to produce electricity.

이때, 상기 코어(Core)는 핵연료부터 발생하는 열을 소듐으로 전달한다.(혹은 냉각재인 소듐을 이용하여 핵연료의 열 제거)At this time, the core transfers the heat generated from the nuclear fuel to the sodium (or the heat of the nuclear fuel is removed by using the coolant sodium)

이후, 1차 열전달계통(Primary sodium)은 1차 냉각재인 소듐이 어떠한 상황에서도 물과 접촉하는 것을 방지하기 위하여 중간열교환기를 통하여 1차 소듐냉각재와 2차 소듐냉각재 간의 열전달이 이루어지도록 추가로 사용한다.The primary sodium is then further used to transfer heat between the primary and secondary sodium coolants through an intermediate heat exchanger to prevent the sodium, which is the primary coolant, from coming into contact with the water under any circumstances .

이후, 중간열전달계통(IHTS)은 2차 소듐냉각재로부터 증기발생기를 통해 물에 열전달을 하여 증기를 발생시킨다.The intermediate heat transfer system (IHTS) then generates heat by transferring heat from the secondary sodium coolant through the steam generator to the water.

그리고, 증기발생기(Steam Generator)는 발생한 증기를 이용하여 터빈을 발생시키고 이를 통해 전기를 생산하도록 한다.And, the steam generator generates the turbine by using the generated steam and produces electricity through it.

그러나, 기존의 증기발생기는 관류형(Helical Coil)을 적용함으로써, 열전달 성능이 저하되어 고속 사이클에 개선이 요구되고 있는 실정이고, 역 압력 발생시 이에 대한 사용 안정성과 신뢰도가 저하되고 있는 실정이다.However, existing steam generators are required to be improved in a high-speed cycle because the heat transfer performance is lowered by applying a helical coil, and the stability and reliability of the use of the steam generators are lowered when the reverse pressure is generated.

1. 대한민국 등록특허공보 제10-1038399호(2011.05.25. 등록)1. Korean Registered Patent No. 10-1038399 (registered on May 25, 2011)

본 발명은 상술한 문제점을 해결하기 위한 것으로, 그 기술적 요지는 4세대 원자로의 유력한 후보 중 하나인 소듐 냉각 고속원자로에 열전달 성능과 고압 안정성이 개선된 인쇄기판형 증기발생기(Printed Circuit Steam Generator, PCSG)를 적용함에 있어서, 증기발생기(함체) 내에는 단방향 유로형 유선형 구조를 갖는 다수개의 에어포일(Airfoil) 블럭이 구비되도록 하되, 상기 에어포일 블럭은 정방향으로 유체가 이동할 경우에는 유동 경로에 방해 요소가 없지만, 역압력이 가해지는 상황에서는 유동경로에 스월(Swirl)을 발생시킬 수 있도록 하는 역류방지홈이 형성되어 압력손실이 크게 작동하도록 하는 바, 이는 비상 상황시 역방향으로 유체가 이동하는 것을 효율적으로 저지하여 상시 안정적인 운전이 가능하도록 함은 물론 이에 고속원자로의 사용 신뢰성이 크게 향상되도록 하는 것을 특징으로 하는 소듐 고속 냉각로의 인쇄기판형 증기발생기용 유체 다이오드를 제공함에 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is a technical object of the present invention to provide a Printed Circuit Steam Generator (PCSG) improved in heat transfer performance and high-pressure stability to a sodium- A plurality of airfoil blocks having a unidirectional flow path-type streamline structure is provided in the steam generator (enclosure), and the airfoil block has an obstruction element in the flow path when the fluid moves in the forward direction However, in a situation where the back pressure is applied, a backflow preventing groove is formed in the flow path for generating a swirl, so that the pressure loss is made large so that the fluid moves in the reverse direction in an emergency And the reliability of the high-speed reactor is high. To provide a sodium press plate appointed steam generating fluid in a high-speed diode for cooling characterized in that it is an object to be improved.

이러한 목적을 달성하기 위해 본 발명은 내부에 공간부(110)가 형성되는 판넬식 함체(100)의 길이방향 일측 및 타측에 각각 유입구(120)와 배출구(130)가 형성되도록 하되, 상기 함체의 공간부(110)에는 유선형 구조의 다수개의 에어포일(Airfoil) 블럭(200)이 일련의 유로를 가지며 배치되도록 형성되고, 상기 에어포일 블럭(200)은 함체의 공간부(110)에 내장시 평편한 윗면과 아랫면이 함체의 내주연 상,하면과 맞닿아 기밀되도록 형성되어 에어포일 블럭 간 이격된 빈 공간 측면으로 유로가 이루어지도록 형성되며, 상기 에어포일 블럭(200)의 유선형 구조 중 협소한 모서리 단부(210)는 증기가 순환시 유입되는 유입구(120) 측을 향하도록 형성되고, 상기 모서리 단부(210)에 대향되는 타측 볼륨 확장부(220)에는 상변화에 따른 역압력 발생시 이를 상쇄하도록 역류방지홈(230)이 형성되어 유체의 역방향 흐름시 스월(Swirl)을 형성하여 압력손실을 최대화하고 역류 흐름이 저지될 수 있도록 형성된다.In order to achieve the above object, the present invention provides an inlet port (120) and an outlet port (130) formed at one side and the other side of a longitudinal direction of a panel enclosure (100) A plurality of airfoil blocks 200 having a streamlined structure are formed in the space portion 110 so as to have a series of flow paths and the airfoil block 200 is installed in the space portion 110 of the housing, The upper and lower surfaces of the airfoil block 200 are formed so as to be in close contact with the inner and outer surfaces of the enclosure to be airtight to the sides of the void space spaced apart from the airfoil blocks. The end portion 210 is formed so as to face the side of the inlet 120 through which the steam flows when the steam circulates. The other volume expansion portion 220 opposed to the edge 210 has a counter flow Prevention groove (230) is formed to form a swirl in the reverse flow of the fluid to maximize the pressure loss and to prevent the reverse flow.

이에, 상기 에어포일 블럭(200)이 구비된 함체(100)는 하나 이상 폭방향으로 적층하여 열전달 성능이 증대될 수 있도록 형성된다.Accordingly, the enclosure 100 equipped with the airfoil block 200 is stacked in at least one width direction so that the heat transfer performance can be increased.

또한, 상기 함체(100)는 유입구(120)의 직경 대비 배출구(130)의 직경이 최소 1.5배~2배 내외로 크게 형성되어 유체의 순환 흐름시 신속한 순환 사이클이 확보되도록 형성된다.In addition, the housing 100 is formed such that the diameter of the discharge port 130 is at least 1.5 to 2 times as large as the diameter of the inlet 120, so that a rapid circulation cycle is secured in the circulation flow of the fluid.

이때, 상기 에어포일 블럭(200)은 평면에서 도시한 형상이At this time, the airfoil block 200 has a shape shown in a plane

"

Figure 112017075893813-pat00001
" 형태로 형성되는 것이 바람직하다."
Figure 112017075893813-pat00001
Quot; < / RTI >

이와 같이, 본 발명은 인쇄기판형 증기발생기(Printed Circuit Steam Generator, PCSG)에 관한 것으로, 이는 4세대 원자로의 유력한 후보 중 하나인 소듐 냉각 고속원자로에 실질적인 적용을 도모함에 있어서, 증기발생기(함체) 내에 구비된 다수개의 에어포일(Airfoil) 블럭은 단방향 유로형 유선형 구조로 형성되어 정방향으로 유체가 이동할 경우에는 유동 경로에 방해 요소가 없지만, 역압력이 가해지는 상황에서는 유동경로에 스월(Swirl)을 발생시킬 수 있도록 하는 역류방지홈이 형성되어 압력손실이 크게 작동하도록 하는 바, 이는 비상 상황시 역방향으로 유체가 이동하는 것을 효율적으로 저지하여 상시 안정적인 운전이 가능하도록 함은 물론 이에 고속원자로의 사용 신뢰성이 크게 향상되도록 하는 효과가 있다.Thus, the present invention relates to a Printed Circuit Steam Generator (PCSG), which, in a practical application to a sodium-cooled fast reactor, one of the strong candidates for fourth generation reactors, The plurality of airfoil blocks are formed in a unidirectional flow-path-like stream-like structure. When the fluid moves in the forward direction, there is no obstacle in the flow path. However, in a situation where reverse pressure is applied, a swirl The flow of the fluid in the reverse direction is effectively prevented in the event of an emergency, thereby enabling stable operation at all times. In addition, the reliability of the use of the high-speed reactor There is an effect of greatly improving.

도 1은 본 발명에 따른 인쇄기판형 증기발생기가 소듐 냉각 고속원자로에 적용된 것을 나타낸 예시도,
도 2는 본 발명에 따른 인쇄기판형 증기발생기의 사용 예시도,
도 3은 본 발명에 따른 인쇄기판형 증기발생기의 확대 예시도,
도 4는 일반적인 소듐 냉각 고속원자로를 나타낸 예시도이다.
FIG. 1 is an exemplary view showing a printing plate type steam generator according to the present invention applied to a sodium-cooled high-speed reactor,
FIG. 2 is a view showing a use example of a printing plate type steam generator according to the present invention,
3 is an enlarged view of a printing plate type steam generator according to the present invention,
Figure 4 is an illustration of a typical sodium cooled fast reactor.

다음은 첨부된 도면을 참조하며 본 발명을 보다 상세히 설명하겠다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

먼저, 도 1 내지 도 3에 도시된 바와 같이, 본 발명은 내부에 공간부(110)가 형성되는 판넬식 함체(100)의 길이방향 일측 및 타측에 각각 유입구(120)와 배출구(130)가 형성된다.1 to 3, an inlet 120 and an outlet 130 are formed on one side and the other side, respectively, in the longitudinal direction of the panel-type housing 100 in which the space 110 is formed. .

이때, 상기 함체의 공간부(110)에는 유선형 구조의 다수개의 에어포일(Airfoil) 블럭(200)이 일련의 유로를 가지며 배치되도록 형성된다.At this time, a plurality of airfoil blocks 200 having a streamline structure are formed in the space portion 110 of the housing so as to have a series of flow paths.

이에, 상기 에어포일 블럭(200)은 함체의 공간부(110)에 내장시 평편한 윗면과 아랫면이 함체의 내주연 상,하면과 맞닿아 기밀되도록 형성되어 에어포일 블럭 간 이격된 빈 공간 측면으로 유로가 이루어지도록 형성되며, The upper and lower surfaces of the airfoil block 200 are formed so as to be in close contact with the inner circumferential surface and the lower surface of the enclosure to be hermetically sealed when the airfoil block 200 is housed in the space portion 110 of the enclosure, A flow path is formed,

또한, 상기 에어포일 블럭(200)의 유선형 구조 중 협소한 모서리 단부(210)는 증기가 순환시 유입되는 유입구(120) 측을 향하도록 형성된다.In addition, the narrow edge portion 210 of the streamlined structure of the airfoil block 200 is formed so as to face toward the inlet 120 where the steam flows in the circulation.

이때, 상기 모서리 단부(210)에 대향되는 타측 볼륨 확장부(220)에는 상변화에 따른 역압력 발생시 이를 상쇄하도록 역류방지홈(230)이 형성되어 유체의 역방향 흐름시 스월(Swirl)을 형성하여 압력손실을 최대화하고 역류 흐름이 저지될 수 있도록 형성된다.At this time, a counterflow preventing groove 230 is formed in the other side volume expanding portion 220 opposite to the edge 210 to cancel the reverse pressure due to the phase change, thereby forming a swirl in the reverse flow of the fluid To maximize pressure loss and to prevent backflow.

즉, 상기 에어포일 블럭(200)은 That is, the airfoil block 200

평면에서 도시한 형상이 "

Figure 112017075893813-pat00002
" 형태로 형성되는 것이 바람직하다.When the shape shown in the plane is "
Figure 112017075893813-pat00002
Quot; < / RTI >

정리하면, 유체가 정방향으로 이동할 시에는 에어포일(Aifoil) 블럭의 유선형 구조를 통해 유입구 측으로부터 유입된 유체의 흐름은 거의 방해하지 않으면서(압력손실 영향 x) 동시에 열전달 성능을 향상시킬 수 있다. In summary, when the fluid moves in the forward direction, the flow of the fluid introduced from the inlet side through the streamlined structure of the airfoil block is hardly disturbed (the pressure loss x) and at the same time the heat transfer performance can be improved.

그리고, 유체가 정방향으로 흐를 때에는 유선형 구조가 흐름을 방해하지 않으며, 반복되는 유선형 구조는 유체의 열전달 성능을 향상시키는 역할을 수행한다.And, when the fluid flows in the forward direction, the streamlined structure does not interfere with the flow, and the repeated streamlined structure plays a role in improving the heat transfer performance of the fluid.

반면, 직경이 작은 관에서 증기 발생으로 인한 상 변화 발생시 부피팽창으로 인한 역압력이 발생하는 경우 이를 해소하기 위하여 역류방지홈을 에어포일 블럭의 볼륨확장부에 마련해 둔다.On the other hand, in order to eliminate the back pressure due to the volume expansion when a phase change due to steam generation occurs in a tube having a small diameter, a backflow preventing groove is provided in the volume expansion portion of the air foil block.

이는 볼륨확장부의 유선형 구조에 역류방지홈을 파서 역방향으로 유체가 흐를시 강제적으로 스월(swirl)을 만들어 압력손실을 크게 하여 흐름을 저지할 수 있도록 형성된다.This is formed so as to swirl in the streamlined structure of the volume expanding portion to force swirl when the fluid flows in the reverse direction to increase the pressure loss to prevent the flow.

이때, 상기한 역류방지홈은 와류가 크게 발생할 수 있도록 병따개 형태로 형성되어 역류방지홈의 좁은 유입공을 통해 진입한 유체가 역류방지홈의 밀폐된(또는 폐쇄된) 측을 통해(축선을 기준으로 양측이 한 쌍처럼 대칭되는 형태) 회전하면서 역행을 최대한 저지시키도록 형성된다.At this time, the backflow prevention groove is formed in the shape of a bottle opener so that a vortex can be generated largely, and the fluid that has entered through the narrow inflow hole of the backflow preventing groove flows through the closed (or closed) Which is symmetrical as a pair on both sides), so as to prevent the backward movement as much as possible.

그리고, 상술한 에어포일 블럭들은 이웃한 에어포일 블럭과 일렬로 나란한 것이 아니라 서로 지그재그 교차 배열되도록 함으로써, 상면에서 보았을 때 오와 열이 일부 이격되도록 함으로써, 순방향 유체 흐름은 신속하게 배출되도록 하되, 역방향 역류는 후순위 에어포일 블럭들이 차례대로 흐름을 차단시키도록 형성되는 것이 바람직하다.The above-described airfoil blocks are arranged in a zigzag fashion so as not to be aligned with neighboring airfoil blocks, so that the mist and heat are separated from each other when seen from above, so that the forward fluid flow is quickly discharged. The backwash is preferably formed such that the subordinate airfoil blocks in turn block the flow.

즉, 본 발명은 소듐 냉각 고속원자로에 적용하는 증기발생기로서 역압력이 발생하는 상황에서도 안전장치를 마련하도록 함으로써 지속적으로 제 역할을 수행할 수 있도록 형성된다. 이는 곧 안정성이 향상된다.That is, the present invention is a steam generator applied to a sodium-cooled high-speed reactor, so that a safety device can be provided even in the event of occurrence of back pressure, so that the steam generator can continuously perform its role. This improves stability soon.

이에, 상기 에어포일 블럭(200)이 구비된 함체(100)는 하나 이상 폭방향으로 적층하여 열전달 성능이 증대될 수 있도록 형성된다.Accordingly, the enclosure 100 equipped with the airfoil block 200 is stacked in at least one width direction so that the heat transfer performance can be increased.

이러한 적층 구조는 증기발생량에 따라 맞춤 설계 가변이 용이하도록 형성되고, 적층시에는 융착 또는 조립식 구조로 결합되도록 형성되는 것이 바람직하다.It is preferable that such a laminated structure is formed so as to easily change the customized design according to the amount of generated steam, and is formed so as to be fused or assembled into a prefabricated structure at the time of lamination.

또한, 상기 함체(100)는 유입구(120)의 직경 대비 배출구(130)의 직경이 최소 1.5배~2배 내외로 크게 형성되어 유체의 순환 흐름시 신속한 순환 사이클이 확보되도록 형성된다.In addition, the housing 100 is formed such that the diameter of the discharge port 130 is at least 1.5 to 2 times as large as the diameter of the inlet 120, so that a rapid circulation cycle is secured in the circulation flow of the fluid.

본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

100 ... 함체 110 ... 공간부
120 ... 유입구 130 ... 배출구
200 ... 에어포일 블럭 210 ... 모서리 단부
220 ... 볼륨 확장부 230 ... 역류방지홈
100 ... enclosure 110 ... space portion
120 ... inlet 130 ... outlet
200 ... air foil block 210 ... edge end
220 ... volume extension part 230 ... backflow prevention groove

Claims (3)

내부에 공간부(110)가 형성되는 판넬식 함체(100)의 길이방향 일측 및 타측에 각각 유입구(120)와 배출구(130)가 형성되도록 하되, 상기 함체의 공간부(110)에는 유선형 구조의 다수개의 에어포일(Airfoil) 블럭(200)이 일련의 유로를 가지며 배치되도록 형성되고, 상기 에어포일 블럭(200)은 함체의 공간부(110)에 내장시 평편한 윗면과 아랫면이 함체의 내주연 상,하면과 맞닿아 기밀되도록 형성되어 에어포일 블럭 간 이격된 빈 공간 측면으로 유로가 이루어지도록 형성되며, 상기 에어포일 블럭(200)의 유선형 구조 중 협소한 모서리 단부(210)는 증기가 순환시 유입되는 유입구(120) 측을 향하도록 형성되고, 상기 모서리 단부(210)에 대향되는 타측 볼륨 확장부(220)에는 상변화에 따른 역압력 발생시 이를 상쇄하도록 역류방지홈(230)이 형성되어 유체의 역방향 흐름시 스월(Swirl)을 형성하여 압력손실을 최대화하고 역류 흐름이 저지될 수 있도록 하는 것을 특징으로 하는 소듐 고속 냉각로의 인쇄기판형 증기발생기용 유체 다이오드.An inlet port 120 and an outlet port 130 are formed on one side and the other side of the longitudinal direction of the panel type housing 100 in which the space portion 110 is formed and the space portion 110 of the housing has a streamlined structure A plurality of airfoil blocks 200 are formed so as to have a series of flow paths. The airfoil block 200 has a flat upper surface and a lower surface when the airfoil block 200 is built in the space portion 110 of the enclosure, The narrow edge portion 210 of the streamlined structure of the airfoil block 200 is formed so as to surround the airfoil block 200 when the steam is circulated And a reverse flow preventing groove 230 is formed in the other volume expanding portion 220 opposite to the edge 210 so as to cancel the back pressure caused by the phase change, In the reverse flow of Sodium fluid diode appointed press plate of a steam generator in a high-speed cooling, characterized in that to allow to form a month (Swirl) can be maximized, the pressure loss and preventing the reflux stream. 제 1항에 있어서, 상기 에어포일 블럭(200)이 구비된 함체(100)는 하나 이상 폭방향으로 적층하여 열전달 성능이 증대될 수 있도록 하는 것을 특징으로 하는 소듐 고속 냉각로의 인쇄기판형 증기발생기용 유체 다이오드.The steam generator as claimed in claim 1, wherein the enclosure (100) having the airfoil block (200) is stacked in at least one width direction so that heat transfer performance can be increased. Fluid diode. 제 2항에 있어서, 상기 함체(100)는 유입구(120)의 직경 대비 배출구(130)의 직경이 최소 1.5배~2배 내외로 크게 형성되어 유체의 순환 흐름시 신속한 순환 사이클이 확보되도록 하는 것을 특징으로 하는 소듐 고속 냉각로의 인쇄기판형 증기발생기용 유체 다이오드.
The housing (100) according to claim 2, wherein the housing (100) is formed such that the diameter of the discharge port (130) is at least 1.5 to 2 times larger than the diameter of the inlet (120) so that a rapid circulation cycle Features a fluid diode for plate-type steam generators in a sodium fast cooling furnace.
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US10945354B1 (en) 2020-01-30 2021-03-09 Toyota Motor Engineering & Manufacturing North America, Inc. Cooling systems comprising fluid diodes with variable diodicity for two-phase flow control
KR20230006291A (en) 2021-07-02 2023-01-10 한국원자력연구원 Nuclear power plant using intermediate system

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JP2012082941A (en) 2010-10-14 2012-04-26 Isuzu Motors Ltd Fluid diode
JP2015102324A (en) 2013-11-21 2015-06-04 アルストム テクノロジー リミテッドALSTOM Technology Ltd Evaporator apparatus and method of operating the same
KR101565436B1 (en) 2014-09-22 2015-11-03 한국원자력연구원 Heat exchanger and nuclear power plant having the same

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JP2007523315A (en) 2004-02-23 2007-08-16 キャリア コーポレイション Fluidic diode expansion device for heat pump
JP2012082941A (en) 2010-10-14 2012-04-26 Isuzu Motors Ltd Fluid diode
JP2015102324A (en) 2013-11-21 2015-06-04 アルストム テクノロジー リミテッドALSTOM Technology Ltd Evaporator apparatus and method of operating the same
KR101565436B1 (en) 2014-09-22 2015-11-03 한국원자력연구원 Heat exchanger and nuclear power plant having the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10945354B1 (en) 2020-01-30 2021-03-09 Toyota Motor Engineering & Manufacturing North America, Inc. Cooling systems comprising fluid diodes with variable diodicity for two-phase flow control
KR20230006291A (en) 2021-07-02 2023-01-10 한국원자력연구원 Nuclear power plant using intermediate system

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