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KR19990070607A - Forced evaporation device of low level radioactive liquid waste - Google Patents

Forced evaporation device of low level radioactive liquid waste Download PDF

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Publication number
KR19990070607A
KR19990070607A KR1019980005557A KR19980005557A KR19990070607A KR 19990070607 A KR19990070607 A KR 19990070607A KR 1019980005557 A KR1019980005557 A KR 1019980005557A KR 19980005557 A KR19980005557 A KR 19980005557A KR 19990070607 A KR19990070607 A KR 19990070607A
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South Korea
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waste liquid
evaporation
waste
tank
storage tank
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KR100288073B1 (en
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정경환
김길정
강권호
배상민
강일식
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김성년
한국원자력연구소
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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04Treating liquids
    • G21F9/06Processing
    • G21F9/08Processing by evaporation; by distillation
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04Treating liquids
    • G21F9/20Disposal of liquid waste
    • G21F9/22Disposal of liquid waste by storage in a tank or other container

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

본 발명은 저준위 방사성 액체폐기물의 강제증발 장치에 관한 것으로, 그 목적은 저준위 방사성 액체폐기물의 처리시 발생되는 비말동반 현상을 제거하여 오염확산을 방지하고, 폐액 처리를 용이하게 하는 저준위 방사성 액체폐기물의 강제증발 장치를 제공하는 것이다.The present invention relates to a forced evaporation device of low-level radioactive liquid wastes, the object of which is to remove the entrainment phenomenon generated during the treatment of low-level radioactive liquid wastes to prevent the spread of contamination, and to facilitate the treatment of waste liquids It is to provide a forced evaporation device.

본 발명은 이송펌프에 의해 폐액저장조의 폐액이 증발조로 이송되고, 상기 증발조내로 필터를 통해 공기가 유입됨과 동시에 또다른 필터를 통해 공기가 외부로 토출되며, 상기 유입된 공기에 의해 농축된 폐액이 중간저장조에 일시 저장됨과 동시에, 중간저장조에 일시 저장된 농축폐액이 일정수위를 유지하며 농축액 저장조에 저장되는 저준위 방사성 액체폐기물 농축 처리장치에 있어서; 상기 증발조는 펌프에 의해 폐액저장조내의 폐액이 유입되는 메인 파이프; 상기 메인 파이프에 연결되어 증발조 상부에 설치되고, 양측에 다수개의 폐액 분배홀이 일정간격으로 형성된 다수개의 폐액분배관; 상기 다수개의 폐액분배홀이 형성된 폐액분배관의 하부에 각각 설치되는 턱받이 플레이트; 상기 턱받이 플레이트가 설치된 각각의 폐액분배관을 내포하도록 증발조 내부 상부면에 상부가 각각 설치되고, 개방된 하부가 중간저장조의 농축폐액내로 침수되며, 내부면이 분배홀을 통해 토출되는 폐액에 접촉됨과 동시에, 필터를 통해 증발조내로 유입된 공기에 외부면이 접촉되는 다수개의 증발천을 포함하는 저준위 방사성 액체폐기물의 강제증발 장치를 제공함에 있다.According to the present invention, a waste pump of a waste liquid storage tank is transferred to an evaporation tank by a transfer pump, and at the same time as air is introduced into the evaporation tank through a filter, air is discharged to the outside through another filter, and the waste liquid concentrated by the introduced air. In the low-level radioactive liquid waste concentration processing apparatus is temporarily stored in the intermediate storage tank, the concentrated waste liquid temporarily stored in the intermediate storage tank is stored in the concentrate storage tank while maintaining a constant water level; The evaporation tank may include a main pipe into which the waste liquid in the waste liquid storage tank is introduced by a pump; A plurality of waste liquid distribution pipes connected to the main pipe and installed at an upper portion of the evaporation tank, and having a plurality of waste liquid distribution holes at both sides at predetermined intervals; Bib plates which are respectively installed in the lower portion of the waste liquid distribution pipe formed with the plurality of waste liquid distribution holes; The upper part is respectively installed on the inner upper surface of the evaporator tank so as to contain each waste liquid distribution pipe in which the bib plate is installed, and the open lower part is flooded into the concentrated waste liquid of the intermediate reservoir, and the inner surface contacts the waste liquid discharged through the distribution hole. At the same time, to provide a forced evaporation device of a low-level radioactive liquid waste comprising a plurality of evaporation spring in which the outer surface is in contact with the air introduced into the evaporator through the filter.

Description

저준위 방사성 액체폐기물의 강제증발 장치Forced evaporation device of low level radioactive liquid waste

본 발명은 저준위 방사성 액체폐기물의 강제증발 장치에 관한 것으로, 얇은 천을 매개물로 하여 폐액과 공기를 접촉시키고, 실온에서 습도차에 의해 순수 물을 증발시켜 방사성 폐액을 농축하는 저준위 방사성 액체폐기물의 강제증발 장치에 관한 것이다.The present invention relates to a forced evaporation device of low-level radioactive liquid wastes, the evaporation of low-level radioactive liquid wastes in which the waste liquid and air are contacted with a thin cloth as a medium and the pure water is evaporated by the humidity difference at room temperature to concentrate the radioactive waste liquid. Relates to a device.

종래에 사용되고 있는 방사성 액체폐기물 농축장치는 비등점 차를 이용하여 액체폐기물을 증발·농축하는 것으로, 고온에 휘발되는 방사성 물질과 폐액에 포함된 불순물로 인하여 증발·농축공정시 거품이 일어나는 현상에 의해 비말동반현상 등이 발생하였다.The conventional radioactive liquid waste concentrator is a vaporizing and condensing of liquid waste using a boiling point difference, and is caused by a phenomenon that bubbles are generated during the evaporation and concentration process due to the impurities contained in the waste material and the radioactive material volatilized at high temperature. Accompanying phenomena occurred.

또한, 프랑스에서 연구된 저준위 방사성 폐액 증발장치는 판의 양쪽에 폐액을 흘러내리게 하고, 공기를 상기 폐액에 강제로 접촉하게 하여 폐액을 증발·농축시키는 것으로, 판의 양쪽에 폐액을 흐르게 할 때 모든 폐액이 판을 따라 흐르지 못하고 다량의 폐액이 공중으로 떨어지게 되며, 이때 공기의 유속이 크면 폐액의 비말동반 현상이 발생하게 되는 등 여러 가지 문제점이 있었다.In addition, the low-level radioactive waste liquid evaporator studied in France allows the waste liquid to flow down on both sides of the plate and to force the air into contact with the waste liquid to evaporate and concentrate the waste liquid. Waste liquid does not flow along the plate and a large amount of waste liquid falls into the air. At this time, if the air flow rate is large, there are various problems such as entrainment of the waste liquid.

본 발명은 상기와 같은 문제점을 고려하여 이루어진 것으로, 그 목적은 저준위 방사성 액체폐기물의 처리시 발생되는 비말동반 현상을 제거하여 오염확산을 방지하고, 폐액 처리를 용이하게 하는 저준위 방사성 액체폐기물의 강제증발 장치를 제공하는 것이다.The present invention has been made in view of the above problems, and an object thereof is to remove the entrainment of splashes generated during the treatment of low-level radioactive liquid waste, to prevent the spread of contamination, and to facilitate the treatment of low-level radioactive liquid waste. To provide a device.

본 발명은 액체폐기물의 처리시 발생되는 비말동반 현상을 제거함으로써 달성되는데 즉, 이송펌프에 의해 폐액저장조의 폐액이 증발조로 이송되고, 상기 증발조내로 필터를 통해 공기가 유입됨과 동시에 또다른 필터를 통해 공기가 외부로 토출되며, 상기 유입된 공기에 의해 농축된 폐액이 중간저장조에 일시 저장됨과 동시에, 중간저장조에 일시 저장된 농축폐액이 일정수위를 유지하며 농축액 저장조에 저장되는 저준위 방사성 액체폐기물 농축 처리장치에 있어서; 상기 증발조는 펌프에 의해 폐액저장조내의 폐액이 유입되는 메인 파이프; 상기 메인 파이프에 연결되어 증발조 상부에 설치되고, 양측에 다수개의 폐액 분배홀이 일정간격으로 형성된 다수개의 폐액분배관; 상기 다수개의 폐액분배홀이 형성된 폐액분배관의 하부에 각각 설치되는 턱받이 플레이트; 상기 턱받이 플레이트가 설치된 각각의 폐액분배관을 내포하도록 증발조 내부 상부면에 상부가 각각 설치되고, 개방된 하부가 중간저장조의 농축폐액내로 침수되며, 내부면이 분배홀을 통해 토출되는 폐액에 접촉됨과 동시에, 필터를 통해 증발조내로 유입된 공기에 외부면이 접촉되는 다수개의 증발천을 포함하는 저준위 방사성 액체폐기물의 강제증발 장치를 제공함에 있다.The present invention is achieved by removing the splash entrainment phenomenon generated during the treatment of liquid waste, that is, the waste liquid of the waste liquid storage tank is transferred to the evaporation tank by a transfer pump, and air is introduced through the filter into the evaporation tank and at the same time another filter is removed. The air is discharged to the outside through the low-level radioactive liquid waste concentration process in which the waste liquid concentrated by the introduced air is temporarily stored in the intermediate storage tank, and the concentrated waste liquid temporarily stored in the intermediate storage tank maintains a constant level and is stored in the concentrate storage tank. In an apparatus; The evaporation tank may include a main pipe into which the waste liquid in the waste liquid storage tank is introduced by a pump; A plurality of waste liquid distribution pipes connected to the main pipe and installed at an upper portion of the evaporation tank, and having a plurality of waste liquid distribution holes at both sides at predetermined intervals; Bib plates which are respectively installed in the lower portion of the waste liquid distribution pipe formed with the plurality of waste liquid distribution holes; The upper part is respectively installed on the inner upper surface of the evaporator tank so as to contain each waste liquid distribution pipe in which the bib plate is installed, and the open lower part is flooded into the concentrated waste liquid of the intermediate reservoir, and the inner surface contacts the waste liquid discharged through the distribution hole. At the same time, to provide a forced evaporation device of a low-level radioactive liquid waste comprising a plurality of evaporation spring in which the outer surface is in contact with the air introduced into the evaporator through the filter.

도 1 은 본 발명의 개략도1 is a schematic diagram of the present invention

도 2 는 본 발명에 따른 구성을 보인 증발조2 is an evaporation tank showing the configuration according to the present invention

도 3 은 메인 파이프와 폐액분배관의 연결상태를 보인 예시도Figure 3 is an exemplary view showing a connection state of the main pipe and the waste liquid distribution pipe

도 4 는 본 발명에 따른 증발천의 장착상태를 보인 예시도Figure 4 is an exemplary view showing a mounting state of the evaporation cloth according to the present invention

도 5 은 도 4 의 A-A 단면도5 is a cross-sectional view taken along the line A-A of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

(1) : 폐액분배관 (2) : 턱받이 플레이트(1): waste fluid distribution pipe (2): bib plate

(3) : 증발천 (4) : 메인 파이프(3): evaporative spring (4): main pipe

(10) : 증발조 (11) : 폐액분배관 세로부(10): evaporation tank (11): waste liquid pipe vertical section

(12) : 폐액분배관 가로부 (13) : 분배홀(12): Waste liquid distribution pipe horizontal part (13): Distribution hole

(20) : 펌프 (30) : 폐액저장조20: pump 30: waste liquid storage tank

(31) : 증발천 내부면 (32) : 증발천 외부면(31): inner surface of evaporative spring (32): outer surface of evaporative spring

(40) : 배기팬 (41) : 체결홀40: exhaust fan 41: fastening hole

(50) : 제 1 필터 (60) : 제 2 필터50: first filter 60: second filter

(70) : 굴뚝 (80) : 중간저장조(70): chimney (80): intermediate storage tank

(81) : 폐액출구 (90) : 농축액 저장조(81): waste liquid outlet (90): concentrated liquid reservoir

(100): 농축폐액 (200): 증발조 상부면100: concentrated waste liquid 200: top of the evaporator tank

도 1 은 본 발명의 개략도를 도시한 것으로, 본 발명은 폐액이 유입되는 다수개의 폐액분배관(1) 및 다수개의 턱받이 플레이트(2)와, 상기 다수개의 폐액분배관(1) 및 턱받이 플레이트(2)를 각각 내포하는 다수개의 증발천(3)으로 구성된 증발조(10)의 폐액분배관(1)내로 펌프(20)를 이용하여 폐액저장조(30)내의 폐액을 이송함과 동시에, 상기 증발조(10)내로 배기팬(40)에 의해 공기를 강제 유입/토출하여 폐액내에 함유된 수분을 증발시키도록 되어 있다.Figure 1 shows a schematic diagram of the present invention, the present invention is a plurality of waste fluid distribution pipe 1 and a plurality of bib plate (2), the waste liquid flows in, the plurality of waste liquid distribution pipe (1) and bib plate ( 2) transfers the waste liquid in the waste liquid storage tank 30 by using the pump 20 into the waste liquid distribution pipe 1 of the evaporation tank 10 composed of a plurality of evaporation springs 3 each containing the same, and the evaporation. The exhaust fan 40 is forced into or discharged into the tank 10 to evaporate moisture contained in the waste liquid.

즉, 제 1 필터(50)를 경유하여 증발조(10)내로 유입된 공기는 펌프(20)에 의해 증발조(10)내로 유입된 폐액에 함유되어 있는 수분을 빼앗아 폐액을 농축시키고, 상기 수분이 함유된 공기는 제 2 필터(60)를 경유하여 배기팬(40)에 의해 굴뚝(70)으로 강제 배출된다. 이때 상기 증발조(10)내로 유입되어 수분을 함유한 다음 증발조(10) 외부로 배출되는 공기의 속도는 제 2 필터(60)와 굴뚝(70) 사이에 설치된 배기팬(40)에 의해 조절되며, 유입되는 공기에 수분을 빼앗기어 농축된 폐액은 증발조(10) 하부에 설치된 중간저장조(80)내에 일정수위를 유지하며 저장된다.That is, the air introduced into the evaporation tank 10 via the first filter 50 takes the water contained in the waste liquid introduced into the evaporation tank 10 by the pump 20 to concentrate the waste liquid, and the moisture This contained air is forcibly discharged to the chimney 70 by the exhaust fan 40 via the second filter 60. At this time, the rate of air flowing into the evaporator 10 and containing water and then discharged outside the evaporator 10 is controlled by the exhaust fan 40 installed between the second filter 60 and the chimney 70. The waste liquid concentrated by taking moisture into the inflowing air is stored while maintaining a constant water level in the intermediate storage tank 80 installed below the evaporation tank 10.

또한, 상기 중간저장조(80)에 저장된 농축폐액은 일정수위를 유지하며 재순환 되거나, 중간저장조(80) 하부에 설치된 폐액출구(81)를 통해 농축액 저장조(90)로 이송된다.In addition, the concentrated waste liquid stored in the intermediate storage tank 80 is recycled while maintaining a constant water level, or is transferred to the concentrated liquid storage tank 90 through the waste liquid outlet 81 installed below the intermediate storage tank 80.

도 2 는 본 발명에 따른 구성을 보인 증발조를 도시한 것으로, 본 발명은 펌프(20)에 의해 이송되는 폐액저장조(30)내의 폐액을 증발조(10)내로 유입하는 메인 파이프(4)와, 상기 메인 파이프(4)와 연결된 다수개의 폐액분배관(1)과, 상기 다수개의 폐액분배관(1) 하부에 각각 설치되는 턱받이 플레이트(2)와, 상기 턱받이 플레이트(2)가 설치된 폐액분배관(1)을 내포하도록 증발기(10) 내부에 설치된 증발천(3)으로 구성되어 있다.Figure 2 shows an evaporation tank showing a configuration according to the present invention, the present invention and the main pipe (4) for introducing the waste liquid in the waste liquid storage tank 30 to be transported by the pump 20 into the evaporation tank (10) , A plurality of waste liquid distribution pipes (1) connected to the main pipe (4), a bib plate (2) respectively installed under the plurality of waste liquid distribution pipes (1), and a waste liquid having the bib plate (2) installed thereon It is comprised by the evaporation cloth 3 installed in the evaporator 10 so that the piping 1 may be contained.

상기 메인 파이프(4)는 일측이 증발조(10) 상부와 연결되고, 타측이 펌프(20)와 연결되며, 증발조(10) 내부로 삽입된 메인파이프 하단부에 동일직경을 구비하는 다수개의 체결홀(41)이 일정간격을 유지하며 형성되어 있다.The main pipe 4 is one side is connected to the top of the evaporator 10, the other side is connected to the pump 20, a plurality of fastenings having the same diameter in the lower end of the main pipe inserted into the evaporator 10 The hole 41 is formed keeping constant intervals.

상기 폐액분배관(1)은 ''자 형상을 구비하는 것으로, 메인 파이프(4)의 하단부에 연결·설치되는 세로부(11)와, 상기 세로부(11)와 일체형으로 형성되고 끝단이 밀봉되며 양측에 동일직경을 구비하는 다수개의 분배홀(13)이 일정간격을 유지하며 형성된 가로부(12)로 구성되어 있다.The waste liquid distribution pipe (1) is' It is provided with a 'shape, the longitudinal portion 11 which is connected to and installed in the lower end of the main pipe (4), a plurality formed integrally with the longitudinal portion 11, the ends are sealed and the same diameter on both sides Distribution holes 13 are composed of a horizontal portion 12 formed at constant intervals.

상기 턱받이 플레이트(2)는 폐액분배관(1) 하부에 설치되는 것으로, 폐액분배관 가로부(12)에 형성된 분배홀(13)을 통해 증발조(10)내로 토출되는 폐액이 증발조(10) 하부로 직접 떨어지는 것을 방지한다.The bib plate 2 is installed below the waste liquid distribution pipe 1, and the waste liquid discharged into the evaporation tank 10 through the distribution hole 13 formed in the waste liquid distribution pipe horizontal portion 12 is the evaporation tank 10. ) To prevent falling directly to the bottom.

상기 증발천(3)은 턱받이 플레이트(2)가 설치된 폐액분배관(1)을 내포하도록 증발조(10) 내에 설치되는 것으로, 상부가 증발조 내부 상부면(200)에 접합되고, 하부가 중간저장조(80)의 농축폐액(100)내로 침수된다.The evaporation cloth (3) is installed in the evaporator (10) to contain the waste liquid distribution pipe (1) in which the bib plate (2) is installed, the upper part is bonded to the upper surface 200 inside the evaporator, the lower part is the middle It is submerged into the concentrated waste liquor 100 of the reservoir 80.

도 3 은 메인 파이프와 폐액분배관의 연결상태를 보인 예시도를 도시한 것으로, 펌프(20)에 의해 이송된 폐액을 증발조(10)내로 유입시키는 메인파이프(4)의 하단부에 일정간격을 유지하도록 다수개의 폐액분배관(1)을 연결·설치한다.Figure 3 shows an exemplary view showing a connection state of the main pipe and the waste liquid distribution pipe, a predetermined interval at the lower end of the main pipe 4 for introducing the waste liquid transported by the pump 20 into the evaporation tank (10) A plurality of waste liquid distribution pipes (1) are connected and installed to maintain them.

즉, 상기 메인 파이프(4)의 하단부에 일정간격으로 형성된 다수개의 체결홀(41)에 다수개의 분배홀(13)이 형성된 가로부(12)가 서로 평행을 이루도록 ''자 형상의 폐액분배관 세로부(11) 일측을 각각 연결하고, 상기 가로부(12)의 하단부에 폐액이 증발조 하부로 직접 떨어지는 것을 방지하는 턱받이 플레이트(2)를 각각 설치한다.That is, the horizontal portions 12 having the plurality of distribution holes 13 formed in the plurality of fastening holes 41 formed at predetermined intervals at the lower end of the main pipe 4 are parallel to each other ' 'Well-shaped waste liquid distribution pipe vertical portion 11 is connected to each side, and the lower portion of the horizontal portion 12 is provided with a bib plate 2 to prevent the waste liquid from falling directly to the bottom of the evaporator.

도 4 는 본 발명에 따른 증발천의 장착상태를 보인 예시도를 도시한 것으로, 상기와 같이 턱받이 플레이트(2)가 설치된 폐액분배관(1)에 일측면이 밀착하도록 폐액분배관(1)의 주위를 따라 증발조의 내부 상부면(200)에 증발천(3)의 상부를 설치한다.Figure 4 shows an exemplary view showing a mounting state of the evaporation cloth according to the present invention, the waste liquid distribution pipe 1 so that one side is in close contact with the waste liquid distribution pipe 1 is installed bib plate 2 as described above The upper part of the evaporation cloth 3 is installed in the inner upper surface 200 of the evaporation tank along the circumference.

즉, 상기 폐액분배관(1)의 분배홀(13)을 통해 토출되는 폐액이 증발천(3)을 따라 증발조 하부의 중간저장조(80)로 이송될 수 있도록, 턱받이 플레이트(2)가 설치된 폐액분배관(1)에 증발천(3)의 일측면이 밀착되도록 폐액분배관(1) 주위의 증발조 내부 상부면(200)에 증발천(3)의 상부를 설치한다. 이때 상기 증발천(3)의 길이를 조절하여 증발천(3) 하부가 증발조(10) 하부에 설치된 중간저장조(80)에 일정수위를 유지하고 저장된 농축폐액(100)에 잠기도록 한다.That is, the bib plate 2 is installed so that the waste liquid discharged through the distribution hole 13 of the waste liquid distribution pipe 1 can be transferred to the intermediate reservoir 80 under the evaporation tank along the evaporation cloth 3. An upper portion of the evaporation cloth 3 is installed on the upper surface 200 inside the evaporation tank around the waste liquid distribution pipe 1 such that one side of the evaporation cloth 3 is in close contact with the waste liquid distribution pipe 1. At this time, by adjusting the length of the evaporation spring (3) so that the lower part of the evaporation spring (3) maintains a constant water level in the intermediate storage tank (80) installed under the evaporator (10) and soaked in the stored concentrated waste liquid (100).

이와 같이 폐액분배관(1)에 밀착되게, 또한 폐액분배관(1)의 주위를 빙둘러 증발천(3)이 설치되므로, 상기 증발천(3)은 턱받이 플레이트(1)가 설치된 폐액분배관(1)을 내포하게 되고, 폐액분배관(1)에서 토출되는 폐액은 증발천(3)의 내부면(31)을 따라 하부로 이송된다.In this way, the evaporation cloth (3) is installed in close contact with the waste liquid distribution pipe (1) and around the waste liquid distribution pipe (1), so that the evaporation cloth (3) is equipped with a bib plate (1). (1) is contained, and the waste liquid discharged from the waste liquid distribution pipe 1 is transferred downward along the inner surface 31 of the evaporation cloth 3.

도 5 는 도 4 의 A-A 단면도를 도시한 것으로, 증발조의 내부 상부면(200)에 폐액분배관(1)을 내포하도록 증발천(3)의 상부를 설치하고, 증발천(3)의 하부를 중간저장조(80)의 농축폐액(100)내로 침수되게 하여 폐액분배관(1)의 분배홀(13)을 통해 토출되는 폐액이 증발천 내부면(31)과 접촉하여 내부면(31)을 따라 중간저장조(8)로 이송되도록 되어 있다. 즉, 상기 폐액분배관(1)의 분배홀(13)을 통해 토출되는 폐액은 직접적으로 증발천(3)의 내부면(31)에 접촉되거나 폐액분배관(1)의 하부에 설치된 턱받이 플레이트(2)에 의해 간접적으로 증발천(3)의 내부면(31)에 접촉되고, 내부면(31)을 따라 증발조(10) 하부에 위치한 중간저장조(80)내로 이송되도록 되어 있다. 이때 증발천(3)의 외부면(32) 즉, 증발천(3)의 내부면(31)을 따라 폐액이 흘러내릴 때 증발천(3)의 외부면(32)은 배기팬(40)에 의해 강제 유입된 공기와 접촉된다.FIG. 5 is a cross-sectional view taken along line AA of FIG. 4, in which an upper portion of the evaporation cloth 3 is installed to contain the waste liquid distribution pipe 1 on the inner upper surface 200 of the evaporation tank, and The waste liquid discharged through the distribution hole 13 of the waste liquid distribution pipe 1 by being immersed into the concentrated waste liquid 100 of the intermediate storage tank 80 is in contact with the inner surface 31 of the evaporation cloth and is located along the inner surface 31. It is intended to be transferred to the intermediate reservoir (8). That is, the waste liquid discharged through the distribution hole 13 of the waste liquid distribution pipe 1 directly contacts the inner surface 31 of the evaporation cloth 3 or the bib plate installed under the waste liquid distribution pipe 1 ( 2) is indirectly in contact with the inner surface 31 of the evaporation spring (3), and is to be transferred into the intermediate reservoir (80) located below the evaporator (10) along the inner surface (31). At this time, when the waste liquid flows along the outer surface 32 of the evaporation cloth 3, that is, the inner surface 31 of the evaporation cloth 3, the outer surface 32 of the evaporation cloth 3 is connected to the exhaust fan 40. By contact with forced air.

상기와 같이 구성된 본 발명은 증발조(10)내로 배기팬(40)에 의해 공기를 강제 유입/토출하여 폐액에 함유된 수분을 제거함으로써 폐액을 농축시킨다. 즉, 폐액분배관(1)에 의해 증발천 내부면(31)을 따라 폐액이 중간저장조(80)로 이송될시, 배기팬(40)에 의해 증발조(10)내로 강제 유입된 공기를 증발천(3)의 외부면(32)과 접촉시켜 증발천(3)에 스며든 폐액내의 수분을 흡입하게 하고, 수분을 함유한 공기를 증발조(10) 외부로 강제·배출하여 증발천(3)의 내부면(31)을 따라 하부로 흐르는 폐액을 농축시키도록 되어 있다.The present invention configured as described above concentrates the waste liquid by forcibly introducing / discharging air by the exhaust fan 40 into the evaporator 10 to remove moisture contained in the waste liquid. That is, when the waste liquid is transferred to the intermediate storage tank 80 along the inner surface 31 of the evaporation spring by the waste liquid distribution pipe 1, the air forcedly introduced into the evaporation tank 10 by the exhaust fan 40 is evaporated. Contacting the outer surface 32 of the cloth (3) to suck the moisture in the waste liquid soaked into the evaporation cloth (3), and forcibly discharged the moisture-containing air to the outside of the evaporation tank (10) (3) The waste liquid flowing downward along the inner surface 31 of the () is concentrated.

이와 같이 본 발명은 밀폐된 증발천의 내부면을 따라 폐액을 흐르게 하여 폐액으로 인한 오염확산을 방지하고, 폐액과 공기를 간접·접촉시켜 공기 유속에 의한 비말동반 현상을 제거하며, 작업효율성을 향상시키는 등 많은 효과가 있다.As described above, the present invention prevents the spread of waste due to the waste liquid by flowing the waste liquid along the inner surface of the sealed evaporation cloth, and eliminates the entrainment of the splash by the air flow rate by indirectly contacting the waste liquid with the air and improves the work efficiency. There are many effects.

Claims (1)

이송펌프에 의해 폐액저장조의 폐액이 증발조로 이송되고, 상기 증발조내로 필터를 통해 공기가 유입됨과 동시에 또다른 필터를 통해 공기가 외부로 토출되며, 상기 유입된 공기에 의해 농축된 폐액이 중간저장조에 일시 저장됨과 동시에, 중간저장조에 일시 저장된 농축폐액이 일정수위를 유지하며 농축액저장조에 저장되는 저준위 방사성 액체폐기물 농축 처리장치에 있어서;The waste liquid of the waste liquid storage tank is transferred to the evaporation tank by a transfer pump, air is introduced into the evaporation tank through a filter and at the same time, the air is discharged through another filter, and the waste liquid concentrated by the introduced air is an intermediate storage tank. In the low-level radioactive liquid waste concentration processing apparatus is temporarily stored in the intermediate storage tank, the concentrated waste liquid temporarily stored in the intermediate storage tank is stored in the concentrate storage tank while maintaining a constant level; 상기 증발조는 펌프에 의해 폐액저장조내의 폐액이 유입되는 메인 파이프;The evaporation tank may include a main pipe into which the waste liquid in the waste liquid storage tank is introduced by a pump; 상기 메인 파이프에 연결되어 증발조 상부에 설치되고, 양측에 동일직경을 구비하는 다수개의 분배홀이 일정간격으로 형성된 다수개의 폐액분배관;A plurality of waste liquid distribution pipes connected to the main pipes and installed at an upper portion of the evaporation tank, and having a plurality of distribution holes having the same diameter on both sides at predetermined intervals; 상기 분배홀이 형성된 폐액분배관의 하부에 설치되는 다수개의 턱받이 플레이트;A plurality of bib plates installed at a lower portion of the waste liquid distribution pipe in which the distribution holes are formed; 상기 턱받이 플레이트가 설치된 각각의 폐액분배관을 내포하도록 증발조 내부 상부면에 상부가 각각 설치되고, 개방된 하부가 중간저장조의 농축폐액내로 침수되며, 내부면이 분배홀을 통해 토출되는 폐액에 접촉됨과 동시에, 필터를 통해 증발조내로 유입된 공기에 외부면이 접촉되는 다수개의 증발천을 포함하여 구성된 것을 특징으로 저준위 방사성 액체폐기물의 강제증발 장치.The upper part is respectively installed on the inner upper surface of the evaporator tank so as to contain each waste liquid distribution pipe in which the bib plate is installed, and the open lower part is flooded into the concentrated waste liquid of the intermediate reservoir, and the inner surface contacts the waste liquid discharged through the distribution hole. At the same time, the forced evaporation device of the low-level radioactive liquid waste, characterized in that it comprises a plurality of evaporation spring that the outer surface is in contact with the air introduced into the evaporator through the filter.
KR1019980005557A 1998-02-23 1998-02-23 Forced evaporation device of low level radioactive liquid waste Expired - Fee Related KR100288073B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101696888B1 (en) 2016-10-12 2017-01-17 (주)전테크 Treatment methods and system for treatment and reduction of liquid waste including radioactive compounds
CN115798772A (en) * 2022-12-02 2023-03-14 中国原子能科学研究院 Decommissioning transformation method for radioactive waste liquid natural evaporation tank
CN116947139A (en) * 2023-09-21 2023-10-27 湖南品清环保科技有限公司 Efficient evaporation separation device and application method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101696888B1 (en) 2016-10-12 2017-01-17 (주)전테크 Treatment methods and system for treatment and reduction of liquid waste including radioactive compounds
CN115798772A (en) * 2022-12-02 2023-03-14 中国原子能科学研究院 Decommissioning transformation method for radioactive waste liquid natural evaporation tank
CN115798772B (en) * 2022-12-02 2023-10-27 中国原子能科学研究院 Retired reconstruction method of radioactive waste liquid natural evaporation pool
CN116947139A (en) * 2023-09-21 2023-10-27 湖南品清环保科技有限公司 Efficient evaporation separation device and application method thereof
CN116947139B (en) * 2023-09-21 2023-12-05 湖南品清环保科技有限公司 Efficient evaporation separation device and application method thereof

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