KR200198967Y1 - Corrosion prevention equipment of a boiler pipe - Google Patents

Corrosion prevention equipment of a boiler pipe Download PDF

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Publication number
KR200198967Y1
KR200198967Y1 KR2020000011816U KR20000011816U KR200198967Y1 KR 200198967 Y1 KR200198967 Y1 KR 200198967Y1 KR 2020000011816 U KR2020000011816 U KR 2020000011816U KR 20000011816 U KR20000011816 U KR 20000011816U KR 200198967 Y1 KR200198967 Y1 KR 200198967Y1
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South Korea
Prior art keywords
pipe
circulating water
corrosion
magnesium rods
circulating
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KR2020000011816U
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Korean (ko)
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김인수
유태식
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김인수
이동규
조홍식
유태식
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Priority to KR2020000011816U priority Critical patent/KR200198967Y1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/0092Devices for preventing or removing corrosion, slime or scale
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/20Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/40Arrangements for preventing corrosion
    • F24H9/45Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/06Controlling or monitoring parameters in water treatment pH

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

본 고안은 종래에 보일러나 열교환기 등의 배관을 통해 순환수가 순환되는 과정에 산화작용이나 순환수 내에 함유된 고형물의 응집에 의해 녹이나 스케일이 형성되면 배관의 내경이 좁아지면서 온수 순환이 원활하지 못하고 유류는 많이 소요되는 반면에 열전도는 불량한 단점이 있었고, 배관이 파공되어 누수가 되는 경우, 재공사를 해야 했으므로 원자재와 시공비가 많이 소요되는 등의 폐단을 해소하기 위해 본체와 일정한 간격부를 두고 내부체를 구획하고 상·하부로는 다수개의 마그네슘 봉체를 대향되게 설치하여 유입구로부터 유입되는 순환수를 마그네슘 봉체 사이를 경유하여 유출구로 배출시키는 과정에 PH 값을 상승시키고 용존 산소량을 감소시켜 부식이나 스케일 형성을 방지해 주므로써 배관의 파공이 없이 오랫동안 사용할 수 있도록 고안한 것임.When the rust or scale is formed by oxidation or agglomeration of solids contained in the circulating water in the process of circulating the circulating water through a pipe such as a boiler or a heat exchanger, the inner diameter of the pipe becomes narrow and the hot water circulation is not smooth. However, it takes a lot of oil, but heat conduction has a disadvantage of poor, and if the pipe is ruptured and leaks, it was necessary to rework, so the internal spaces with a certain distance from the main body to eliminate the waste such as raw materials and construction costs are required. Sieves are partitioned and a plurality of magnesium rods are installed on the upper and lower sides so that the circulating water flowing from the inlet is discharged to the outlet via the magnesium rods. It prevents the formation so that it can be used for a long time without the hole of pipe. It will anhan.

Description

보일러 배관의 부식 방지 장치{corrosion prevention equipment of a boiler pipe}Corrosion prevention equipment of a boiler pipe

본 고안은 보일러 배관의 부식 방지 장치에 관한 것으로, 순환수가 산화작용에 의해 녹이 발생하는 것을 방지하게 한 것이다.The present invention relates to a corrosion protection device of the boiler pipe, to prevent the circulating water to generate rust by oxidation.

종래에 보일러나 열교환기 등의 배관을 통해 순환수가 순환되는 과정에 산화작용이나 순환수 내에 함유된 고형물의 응집에 의해 녹이나 스케일이 형성되면 배관의 내경이 좁아지면서 온수 순환이 원활하지 못하고 유류는 많이 소요되는 반면에 일전도는 불량한 단점이 있었고, 배관이 파공되어 누수가 되는 경우, 재공사를 해야 했으므로 원자재와 시공비가 많이 소요되는 등의 폐단이 있었다.Conventionally, if rust or scale is formed by oxidation or agglomeration of solids contained in circulating water during circulation of circulating water through a pipe such as a boiler or a heat exchanger, the inner diameter of the pipe is narrowed and the hot water circulation is not smooth and oil is On the other hand, the work conduction had a disadvantage of poor conduction, and when the pipe was ruptured and leaked, it had to be reworked, resulting in a waste of raw materials and construction costs.

본 고안은 상기와 같은 폐단을 해소하기 위해 본체와 일정한 간격부를 두고 내부체를 구획하고 상·하부로는 다수개의 마그네슘 봉체를 대향되게 설치하여 유입구로부터 유입되는 순환수를 마그네슘 봉체 사이를 경유하여 유출구로 배출시키는 과정에 PH 값을 상승시키고 용존 산소량을 감소시켜 부식이나 스케일 형성을 방지해 주므로써 배관의 파공이 없이 오랫동안 사용할 수 있도록 고안한 것으로 첨부된 도면에 의해 상세히 설명하면 다음과 같다.The present invention divides the inner body with a predetermined distance from the main body to solve the above-mentioned end, and installs a plurality of magnesium rods in the upper and lower sides to face the circulating water flowing from the inlet through the magnesium rods In the process of discharge to the sphere by increasing the PH value and reducing the amount of dissolved oxygen to prevent corrosion or scale formation is designed to be used for a long time without a hole in the pipe as described in detail by the accompanying drawings as follows.

도1은 본 고안의 일부 절취 사시도.1 is a partially cutaway perspective view of the present invention;

도2는 본 고안의 종단면도.Figure 2 is a longitudinal cross-sectional view of the present invention.

도3은 도2의 A-A선 단면도.3 is a cross-sectional view taken along the line A-A of FIG.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

(1)본체 (2)내부체 (3)간격부 (4)유입구 (5)유출구 (6)상측 커버(1) body (2) inner body (3) spacing (4) inlet (5) outlet (6) top cover

(7)하부 커버 (8)(8')(8')..(9)(9')(9')..마그네슘 봉체(7) Lower cover (8) (8 ') (8') .. (9) (9 ') (9') .. Magnesium rod

(10)(10')(10')..통공 (11)드레인(10) (10 ') (10') .. hole (11) drain

본체(1)와 내부체(2)를 구획한 간격부(3)에 유입구(4)와 타측은 유출구(5)를 연통하고 상측 커버(6)와 하부 커버(7)로는 다수개의 마그네슘 봉체(8)(8')(8')..(9)(9')(9')..를 대향되게 설치하되, 통공(10)(10')(10')..이 뚫린 하부 커버(7)를 연접해 드레인(11)을 결합하여서 된 것이다.The inlet port 4 and the other side communicate with the outlet port 5 in the spaced portion 3 partitioning the main body 1 and the inner body 2, and the upper cover 6 and the lower cover 7 include a plurality of magnesium rods ( 8) (8 ') (8') .. (9) (9 ') (9') .. Install the lower cover with the through hole 10, 10 ', 10'. It is made by connecting the drain 11 by connecting 7).

미설명 부호 '12'는 접지선, '13,13''는 연결관, '14.14''는 '0'링, '15'는 고정볼트를 표시한다.Unexplained symbol '12' denotes a ground wire, '13, 13 'denotes a connector, '14 .14' denotes a '0' ring, and '15' denotes a fixed bolt.

이와 같이 된 본 고안은 보일러(도시하지 않았음)의 연결관에 본체(1)의 유입구(4)와 유출구(5)를 연결한 상태에서 순환수가 유입구(4)를 통해 내부체(2)와의 간격부(3)로 유입, 와류되면서 상측 커버(6)와 하측 커버(7)에 다수개 설치된 마그네슘 봉체(8)(8')(8')..(9)(9')(9')..사이를 경유해 유출구(5)로 배출되는 과정에 이물질 및 초기의 부식 생성물 등은 원심력 분리 원리에 의해 하측 커버(7)의 통공(10)(10')(10')..으로 빠져 나와 드레인(11)을 통해 배출되므로 순환수의 탁도는 낮아지고 수도물(순환수)의 PH 값은 6.07로써 약산성 영역 부근이지만 유입에서 유출시까지 마그네슘 봉체(8)(8')(8')..(9)(9')(9')..사이를 통과하는 시간이 경과함에 따라 전기·화학적 반응을 일으켜 PH 값이 10.5로 상승시킨다.According to the present invention, the circulating water is connected to the inner body 2 through the inlet port 4 while the inlet port 4 and the outlet port 5 of the main body 1 are connected to the connection pipe of the boiler (not shown). Magnesium rods (8) (8 ') (8') installed in the upper cover (6) and the lower cover (7) while flowing into the gap (3) and vortex (9) (9 ') (9') Foreign substances and initial corrosion products in the process of being discharged to the outlet (5) through the through to the through hole (10) (10 ') (10') of the lower cover (7) by the centrifugal force separation principle. As it exits and is discharged through the drain 11, the turbidity of the circulating water is lowered and the pH value of the tap water (circulating water) is 6.07, which is near the weakly acidic region but from the inflow to the outflow of magnesium rods (8) (8 ') (8'). (9) (9 ') (9') As time passes through, it causes electrochemical reaction and raises PH value to 10.5.

Mg + 2H2O →Mg2+2OH + H2-----(1)Mg + 2H 2 O → Mg 2+ 2OH + H 2 ----- (1)

물의 PH 값이 9이상으로 상승하면 물의 온도 22℃ ∼ 40℃ 에서 철의 부식 속도는 급속히 감소되고 살균제로서 수도물에 의도적으로 용해되어질 수 있는 염소에 의한 철강재의 부식에는 영향을 미치지 못한다. 용존 산소의 농도가 8.96 ppm인 수도물도 본체(1) 내의 내부체(2)에 다수개 형성된 마그네슘 봉체(8)(8')(8').. (9)(9')(9').. 사이를 경유하는 시간 경과에 따른 용존 산소 농도는 크게 감소되고 물에 용해된 용존 산소량은 미소한 양만 남게 된다. 용해된 용존 산소량이 크게 감소되는 이유는 마그네슘 봉체(8)(8')(8')..(9)(9')(9').. 가 전기 화학적 부식 반응을 일으키면서 물에 용해된 용존 산소를 소모시킨다.If the pH value of the water rises to 9 or more, the corrosion rate of iron is rapidly decreased at the water temperature of 22 ° C. to 40 ° C. and does not affect the corrosion of the steel by chlorine, which may be intentionally dissolved in tap water as a disinfectant. Magnesium rods (8) (8 ') (8') formed in the inner part (2) in the body (1) also have a dissolved oxygen concentration of 8.96 ppm. (9) (9 ') (9') Dissolved oxygen concentration decreases significantly over time through .. Only a small amount of dissolved oxygen dissolved in water remains. The reason why dissolved dissolved oxygen is greatly reduced is that magnesium rods (8) (8 ') (8') .. (9) (9 ') (9') .. Consumes dissolved oxygen.

O2+ 2Mg + 2H2O →40H + 2Mg2+--------(2)O 2 + 2Mg + 2H 2 O → 40H + 2Mg 2+ -------- (2)

물에 용해된 용존 산소량이 감소되면 철의 전면 부식 속도가 급격히 감소되며 철강재 표면의 틈(간격), 미세한 균열 혹은 부식생성물 등의 부위에 산소 농담전지 형성을 억제하므로써 전면부식에 비해 수배로 빠른 국부부식인 공식(pit) 및 틈부식(간극 부식crevice corrosion)을 방지할 수 있다.When the dissolved oxygen dissolved in water decreases, the corrosion rate of the iron surface is drastically reduced, and localization is several times faster than that of the surface corrosion by suppressing the formation of oxygen shade cells in the gaps (intervals), fine cracks or corrosion products on the surface of steel. It is possible to prevent corrosion pit and crevice corrosion.

대기의 오염물질 중 HCI 및 CI2등이 담수에 혼입될 수 있고, 염소는 적은 양이지만 살균제로서 수도물에 의도적으로 용해될 수 있다. 이들 염화물에 의해 철강재의 부식이 일어날 수도 있으므로 염화물의 농도가 5.20 ppm인 수도물을 통과시킴에 따른 용존 염화물 변화는 용존 염화물이 감소되는 경향을 보이고 있다. 순환수의 용존 염화물이 감소되는 이유는 살균제로서 수도물에 용해된 염소, 그리고 공기 오염 중의 오염물질 중 HCI 및 CI2등의 염이 유동하면서 (1)식과 같은 전기화학적 부식반응에서 가수분해 되기 때문이다.Among the air pollutants, HCI and CI 2 may be incorporated into fresh water, and chlorine may be intentionally dissolved in tap water as a disinfectant. Since these chlorides may cause corrosion of steel, dissolved chloride changes tend to decrease with the passage of tap water with a chloride concentration of 5.20 ppm. The dissolved chloride in the circulating water is reduced because chlorine dissolved in tap water as a disinfectant and salts such as HCI and CI 2 among the pollutants in air pollution are hydrolyzed in the electrochemical corrosion reaction as shown in Equation (1). .

이와 같은 본 고안은 수도물(순환수)을 다수개의 마그네슘 봉체(8)(8')(8')..(9)(9')(9')..사이를 통과시키는 과정에 PH 값을 상승시키고 용존 산소량을 감소시키며 원심 분리 원리에 의해 탁도를 낮게 하여 부식 또는 스케일 형성을 방지해 주므로써 부식이나 배관의 파공이 없이 열전도가 향상되는 효과가 있다.The present invention provides a PH value in the process of passing tap water (circulating water) between a plurality of magnesium rods (8) (8 ') (8'). (9) (9 ') (9'). It raises, decreases dissolved oxygen amount and lowers turbidity by centrifugation principle to prevent corrosion or scale formation, thereby improving thermal conductivity without corrosion or breakage of pipes.

Claims (1)

본체(1)와 내부체(2)를 구획한 간격부(3)에 유입구(4)와 타측은 유출구(5)를 연통하고 상측 커버(6)와 하부 커버(7)로는 다수개의 마그네슘 봉체(8)(8')(8')..(9)(9')(9')..를 대향되게 설치하되, 통공(10)(10')(10')..이 뚫린 하부 커버(7)를 연접해 드레인(11)을 결합하여서 된 보일러 배관의 부식 방지 장치.The inlet port 4 and the other side communicate with the outlet port 5 in the spaced portion 3 partitioning the main body 1 and the inner body 2, and the upper cover 6 and the lower cover 7 include a plurality of magnesium rods ( 8) (8 ') (8') .. (9) (9 ') (9') .. Install the lower cover with the through hole 10, 10 ', 10'. 7) Corrosion preventing device of boiler pipe made by connecting drain (11) in connection.
KR2020000011816U 2000-04-22 2000-04-22 Corrosion prevention equipment of a boiler pipe KR200198967Y1 (en)

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