KR100473326B1 - Heat Exchanger of Boiler - Google Patents

Heat Exchanger of Boiler Download PDF

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Publication number
KR100473326B1
KR100473326B1 KR10-2002-0020811A KR20020020811A KR100473326B1 KR 100473326 B1 KR100473326 B1 KR 100473326B1 KR 20020020811 A KR20020020811 A KR 20020020811A KR 100473326 B1 KR100473326 B1 KR 100473326B1
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KR
South Korea
Prior art keywords
combustion chamber
heating pipe
boiler
heat exchanger
body shell
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KR10-2002-0020811A
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Korean (ko)
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KR20030082197A (en
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최진민
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최진민
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Priority to KR10-2002-0020811A priority Critical patent/KR100473326B1/en
Publication of KR20030082197A publication Critical patent/KR20030082197A/en
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Publication of KR100473326B1 publication Critical patent/KR100473326B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels
    • F24H9/0031—Guiding means in combustion gas channels with means for changing or adapting the path of the flue gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/06—Arrangement of mountings or supports for heaters, e.g. boilers, other than space heating radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
    • F24H1/36—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side the water chamber including one or more fire tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

본 발명은 별도의 배기가스 배출통로를 설치하지 않고 열교환기의 크기를 감소시키면서 전열면적의 증가로 열효율 증대를 도모할 수 있는 보일러의 열교환기에 관한 것으로, 본체외피(1) 내부에서 히팅파이프(2)가 연소실(3) 둘레를 나선형으로 내장설치되고 이 연소실(3)에는 연료를 공급받아 연소시키는 버너(4)가 장착되어 이루어진 보일러의 열교환기에 있어서, 상기 연소실(3) 상부쪽으로 수조(5)가 내장되되, 이 연소실(3) 둘레에 나선형으로 배치되는 히팅파이프(2)가 수조(5) 둘레와 본체외피(1) 사이에 나선형으로 장착되어 배기가스 배출통로(6)를 나선형으로 형성시키며, 이 배기가스 배출통로(6)는 본체외피(1)와 플랜지(7)를 매개로 밀폐 결합되는 배기후드(8)의 연도(9)에 연통되어 있다.The present invention relates to a heat exchanger of a boiler capable of increasing the thermal efficiency by increasing the heat transfer area while reducing the size of the heat exchanger without installing a separate exhaust gas discharge passage, and heating pipe (2) inside the body shell (1). ) Is installed in a spiral shape around the combustion chamber (3), and the combustion chamber (3) is equipped with a burner (4) for supplying and burning fuel, and the tank (5) toward the upper part of the combustion chamber (3). And a heating pipe 2 spirally disposed around the combustion chamber 3 is spirally mounted between the water tank 5 and the main body shell 1 to spirally form the exhaust gas discharge passage 6. The exhaust gas discharge passage 6 is in communication with the flue 9 of the exhaust hood 8 which is hermetically coupled via the main body shell 1 and the flange 7.

Description

보일러의 열교환기{Heat Exchanger of Boiler}Heat Exchanger of Boiler {Heat Exchanger of Boiler}

본 발명은 보일러중 주로 소형보일러에 설치되는 열교환기에 관한 것으로, 더욱 상세하게는 난방수 또는 온수를 가열하는 히팅파이프에 의해 형성된 나선형 연관을 따라 열기 배기가스가 연도로 배출될 수 있도록 이루어진 보일러의 열교환기에 관한 것이다.The present invention relates to a heat exchanger mainly installed in a small boiler of the boiler, and more particularly, the heat exchanger of the boiler made so that the hot exhaust gas can be discharged to the flue along the spiral connection formed by a heating pipe for heating the heating water or hot water It is about the flag.

주지된 바와 같이 보일러는 연료를 공급받아 버너의 연소실에서 연소시키어 그 화염으로 온난방수를 가열하여 사용할 수 있도록 되어 있다.As is well known, the boiler is supplied with fuel and combusted in the combustion chamber of the burner so as to heat and use the heated and heated water with the flame.

이러한 보일러에는 대부분 버너의 연소실이 연도와 연통되는 연소가스 배출통로인 연관이 별도로 형성되어 있어서 연소된 가스의 열기가 이 연관을 거쳐서 연도로 빠져 나가도록 되어 있다.Most of these boilers have an association, in which the combustion chamber of the burner is a combustion gas discharge passage communicating with the flue, so that the heat of the burned gas passes through the association and exits the flue.

따라서 종래 보일러에서는 열교환기에 연소실과 연도를 연통시키는 연소가스 배출통로인 연관을 별도로 설치하여 내장 시켜야 하기 때문에 자연히 보일러의 열교환기 구조가 커져 전체적인 보일러의 크기가 커지는 단점과 이로 인한 제조단가가 증가할 수 밖에 없는 실정이었다.Therefore, in the conventional boiler, the heat exchanger structure of the boiler is naturally increased due to the installation and installation of a combustion gas discharge passage communicating with the combustion chamber and the flue in the heat exchanger. Therefore, the size of the overall boiler increases and the manufacturing cost may increase. There was no real situation.

또한 종래에는 배기가스가 다열로 배치된 다수개의 직선연관들을 통하여 연도쪽으로 신속하게 배출되기 때문에 히팅파이프와 수조에 전열효과를 최적화 시키기가 곤란할 뿐만 아니라, 연소실의 배기가스가 다수개의 직선연관으로 분배되어 배출됨에 따라 배기가스의 열효율 전도효과가 낮아지는 문제점도 지니고 있었다.In addition, since the exhaust gas is quickly discharged toward the flue through a plurality of linear pipes arranged in multiple rows, it is difficult to optimize the heat transfer effect to the heating pipe and the water tank, and the exhaust gas of the combustion chamber is distributed to the plurality of straight pipes. As it was discharged, the thermal efficiency conduction effect of the exhaust gas was also lowered.

이에 본 발명은 상기와 같은 종래 문제점을 해결하기 위해 발명된 것으로, 수조에 연결되는 히팅파이프에 의하여 연소가스 배출통로가 형성됨에 따라 연소가스 배출통로인 별도의 연관을 설치할 필요가 없게 되어 구조의 감축을 도모하면서 배출되는 연소가스의 열기로 수조와 히팅파이프가 확충된 전열면적의 증대로 효과적으로 가열되는 보일러의 열교환기를 제공함에 그 목적이 있다.Accordingly, the present invention has been invented to solve the conventional problems as described above, and as the combustion gas discharge passage is formed by a heating pipe connected to the water tank, there is no need to install a separate association as the combustion gas discharge passage, thereby reducing the structure. The purpose of the present invention is to provide a heat exchanger of a boiler which is effectively heated by an increase in the heat transfer area in which a water tank and a heating pipe are expanded by the heat of the exhaust gas discharged.

상기와 같은 목적을 달성하기 위한 본 발명은 본체외피 내부에서 히팅파이프가 연소실 둘레를 나선형으로 내장되고 연소실에는 연료를 공급받아 연소시키는 버너가 장착되어 이루어진 보일러의 열교환기에 있어서, 상기 연소실 상부쪽으로 수조가 내장되고, 상기 연소실 둘레에 나선형으로 배치되는 히팅파이프가 수조 둘레와 본체외피 사이에 나선형으로 장착되어 나선형 연관형상인 배기가스 배출통로를 나선형의 일정간격으로 형성시키며, 이 배기가스 배출통로는 본체외피와 플랜지를 매개로 밀폐 결합된 배기후드의 연도에 연통되는 구조로 되어 있다.In order to achieve the above object, the present invention provides a heat exchanger of a boiler in which a heating pipe is helically embedded around a combustion chamber and a burner is provided with a fuel supplied to the combustion chamber for combustion. A heating pipe, which is built in and spirally disposed around the combustion chamber, is spirally mounted between the water tank circumference and the main body shell to form an exhaust gas discharge passage having a spiral associated shape at a predetermined interval of the spiral. It has a structure that communicates with the flue of the exhaust hood which is hermetically coupled via a flange.

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

도 1은 본 발명의 제 1 실시예로서, 보일러의 열교환기 구조를 나타낸 전체 단면도이다.1 is a cross-sectional view showing a heat exchanger structure of a boiler as a first embodiment of the present invention.

본 발명은 도면에 도시된 바와 같이, 본체외피(1) 내부에서 히팅파이프(2)가 연소실(3) 둘레를 나선형으로 내장 설치되고 이 연소실(3)에는 연료를 공급받아 연소시키는 버너(4)가 장착되어 이루어진 보일러의 열교환기에 있어서, 상기 연소실 (3) 상부쪽으로 수조(5)가 내장되고, 이 연소실(3) 둘레에 나선형으로 배치되는 히팅파이프(2)가 수조(5) 둘레와 본체외피(1) 사이에 나선형으로 장착되어 배기가스 배출통로(6)를 나선형으로 형성시키며, 이 배기가스 배출통로(6)는 본체외피(1)와 플랜지(7)를 매개로 밀폐 결합되는 배기후드(8)의 연도(9)에 연통되는 구조로 되어 있다.As shown in the drawing, the heating pipe 2 is installed inside the body shell 1 in a spiral shape around the combustion chamber 3 in a spiral manner, and the combustion chamber 3 is supplied with fuel to burn the burner 4. In the heat exchanger of the boiler which is equipped with the water tank, the water tank 5 is built in the upper part of the said combustion chamber 3, and the heating pipe 2 spirally arrange | positioned around this combustion chamber 3 has the circumference | surroundings of the water tank 5, and a main body shell. Spirally mounted between the (1) to form the exhaust gas discharge passage (6) in a spiral, the exhaust gas discharge passage (6) is an exhaust hood that is hermetically coupled through the body shell (1) and the flange (7) ( It is structured to communicate with the year 9 of 8).

또한 본 발명의 수조(5)에는 히팅파이프(2)에 강제 공급방식으로 물을 공급하기 위해 펌프(10)를 갖춘 물 공급파이프(11)가 히팅파이프(2) 하부선단에 연결되고 이 히팅파이프(2)의 상부선단은 수조(5)에 연결되어 있다.In addition, in the water tank 5 of the present invention, a water supply pipe 11 having a pump 10 is connected to the lower end of the heating pipe 2 to supply water to the heating pipe 2 by a forced supply method. The upper tip of (2) is connected to the water tank (5).

그리고 도면에는 도시하지 않았지만, 공지된 바와 같이 상기 히팅파이프(2)에서 난방수 내지는 온수 공급 및 귀환파이프를 연결 설치할 수 있음은 물론이다.And although not shown in the figure, as well known in the heating pipe 2 can be installed to connect the heating water or hot water supply and return pipe.

따라서 본 발명은 본체외피(1)와 수조(5) 둘레에 형성된 배기가스 배출통로 (6)가 나선형으로 배치되는 히팅파이프(2)에 의해 자연히 나선형 방식으로 연관구조가 형성되어 배기후드(8) 쪽의 연도(9)와 연통되는 구조로 되어 있다.Therefore, according to the present invention, the associated structure is naturally formed in a spiral manner by the heating pipe 2 in which the exhaust gas discharge passage 6 formed around the main body shell 1 and the water tank 5 is spirally disposed, and thus the exhaust hood 8 is formed. It has a structure in communication with the year 9 on the side.

한편 도 2는 본 발명의 다른 실시예를 도시한 것으로, 본 발명의 제 1 실시예인 도 1과 같이 히팅파이프(2)가 본체외피(1) 내부에서 연소실(3) 둘레를 나선형 구조로 결합되면서 수조(5)와 이 본체외피(1) 내부에 나선형 구조로 연장 설치되는데, 이 수조(5)의 전열효과 증대와 배기가스의 전열면적 증대를 위해 수조(5)의 바깥쪽에는 도 3에 자세히 도시된 바와 같이 나선형 오목홈(12)이 연속 형성되어 배기가스 배출통로(6)를 형성시킨 구조로 되어 있다.Meanwhile, FIG. 2 illustrates another embodiment of the present invention. As shown in FIG. 1, the heating pipe 2 is coupled to the circumference of the combustion chamber 3 in a spiral structure inside the main body shell 1, as shown in FIG. The water tank 5 and the main body shell 1 are installed in a spiral structure, and the outside of the water tank 5 is further described in FIG. 3 in order to increase the heat transfer effect of the water tank 5 and the heat transfer area of the exhaust gas. As shown in the figure, the spiral concave groove 12 is continuously formed to form the exhaust gas discharge passage 6.

상기 수조(5)의 바깥쪽 둘레에 형성된 나선형 오목홈(12)은 히팅파이프(2)의 간격을 좁히면서 전열면적을 증가시킴에 따라 보일러의 열교환 효율을 높히면서 사이즈 감축을 가져옴에 따라 더욱 콤팩트화 구조를 가질 수 있다.Spiral concave grooves 12 formed on the outer circumference of the water tank 5 are more compact as they reduce the spacing of the heating pipe 2 and increase the heat transfer area, thereby increasing the heat exchange efficiency of the boiler and reducing the size. It may have a structure.

이어 본 발명에 따른 가스보일러의 열교환기 작동을 살펴보면, 버너(4)의 화염이 연소실(3)에서 연소되면, 이 연소가스의 열기는 도 1과 도 2의 화살표 방식으로 전달되면서 히팅파이프(2)를 가열시키고 상기 히팅파이프(2)에 의해 나선형으로 형성되어 수조(5)와 본체외피(1) 사이에 형성되는 나선형 연관구조인 배기가스 배출통로 (6)를 따라 와류 현상을 일으키면서 배기후드(8)를 거쳐 연도(9)로 배출된다.Looking at the heat exchanger operation of the gas boiler according to the present invention, when the flame of the burner (4) is burned in the combustion chamber (3), the heat of the combustion gas is transferred in the arrow system of Figures 1 and 2 while heating pipe (2) ) And the exhaust hood while being spirally formed by the heating pipe (2) and causing a vortex phenomenon along the exhaust gas discharge passage (6), which is a spirally connected structure formed between the water tank (5) and the main body shell (1). It is discharged to the flue (9) via (8).

이때 상기 배기가스 배출통로(6)를 나선형 와류방식으로 빠져나가는 열기는 수조(5)와 히팅파이프(2)의 접촉시간을 증가 시키면서 지속적으로 가열시킨다.At this time, the heat exiting the exhaust gas discharge passage 6 in a spiral vortex system is continuously heated while increasing the contact time between the water tank 5 and the heating pipe 2.

한편,본 발명의 보일러는 가스 뿐만 아니라 기름을 연료로 하는 보일러 모두에 적용 가능함을 밝혀 둔다.On the other hand, it turns out that the boiler of the present invention can be applied to not only gas but also oil-based boiler.

상기와 같이 본 발명은 열교환기 내부에 별도의 배기가스 배출통로를 배치시킬 필요없이 단지 나선형으로 설치되는 히팅파이프를 이용하여 연관이 나선식으로 형성됨에 따라 가스보일러의 전체크기를 감축시키어 콤팩트화를 추구할 수 있을 뿐만 아니라, 연소가스의 배출 열기의 접촉시간의 증대와 지속적인 가열로 연소효율을 높일 수 있으며, 전열면적당 흡수열량을 증가시키어 고효율의 보일러 열교환기를 제공할 수 있는 잇점 등이 있다.As described above, the present invention reduces the overall size of the gas boiler as it is formed spirally by using a heating pipe installed only in a spiral shape without the need to arrange a separate exhaust gas discharge passage in the heat exchanger. Not only can it be pursued, but also it can increase the combustion efficiency by increasing the contact time of the exhaust heat of the combustion gas and continuous heating, and increase the amount of heat absorbed per heat transfer area to provide a high efficiency boiler heat exchanger.

도 1은 본 발명에 따른 보일러의 열교환기 전체구조를 나타낸 단면도,1 is a cross-sectional view showing the entire heat exchanger structure of the boiler according to the present invention;

도 2는 본 발명의 다른 실시예를 나타내는 단면도,2 is a cross-sectional view showing another embodiment of the present invention;

도 3은 도 2의 A부분 요부확대도이다.3 is an enlarged view of a portion A of FIG. 2.

-도면의 주요 부분에 대한 부호의 설명-Explanation of symbols on main parts of drawing

1 : 본체 외피 2 : 히팅파이프1: main body shell 2: heating pipe

3 : 연소실 4 : 버너3: combustion chamber 4: burner

5 : 수조 6 : 배기가스 배출통로5: water tank 6: exhaust gas discharge passage

7 : 플랜지 8 : 배기후드7: flange 8: exhaust hood

9 : 연도 10 : 펌프9: year 10: pump

11 : 물 공급파이프 12 : 나선형 오목홈11: water supply pipe 12: spiral concave groove

Claims (3)

본체외피(1) 내부에서 히팅파이프(2)가 연소실(3) 둘레를 나선형으로 내장설치되고 이 연소실(3)에는 연료를 공급받아 연소시키는 버너(4)가 장착되어 이루어진 보일러의 열교환기에 있어서, In a heat exchanger of a boiler in which a heating pipe (2) is installed in a spiral shape around a combustion chamber (3) inside a main body shell (1), and a burner (4) is installed in the combustion chamber (3) to receive fuel and combust. 상기 연소실(3) 상부쪽으로 히팅저장용 수조(5)가 내장되고, 이 연소실(3) 둘레에 나선형으로 배치되는 히팅 파이프(2)가 이 수조(5) 둘레와 본체외피(1) 사이에 나선형으로 장착되어 배기가스 배출통로(6)를 나선형으로 형성시키며, 이 배기가스 배출통로(6)는 본체외피(1)와 플랜지(7)를 매개로 밀폐 결합되는 배기후드(8)의 연도(9)에 연통되어 이루어진 것을 특징으로 하는 보일러의 열교환기.A heating and storage tank 5 is built in an upper portion of the combustion chamber 3, and a heating pipe 2 spirally disposed around the combustion chamber 3 is spirally formed between the tank 5 and the main body shell 1. The exhaust gas discharge passage 6 is formed in a spiral shape, and the exhaust gas discharge passage 6 is a flue (9) of the exhaust hood 8 which is hermetically coupled through the body shell 1 and the flange 7. Heat exchanger of the boiler, characterized in that made in communication with). 제 1항에 있어서, 상기 수조(5)에는 히팅파이프(2)에 강제 공급방식으로 물을 공급하기 위해 펌프(10)를 갖춘 물 공급파이프(11)가 히팅파이프(2) 하부 선단에 연결되고 이 히팅파이프(2)의 상부선단은 이 수조(5)에 연결되어 이루어진 것을 특징으로 하는 보일러의 열교환기.The water supply pipe (11) of claim 1, wherein the water supply pipe (11) having a pump (10) is connected to the lower end of the heating pipe (2) in order to supply water to the heating pipe (2) by a forced supply method. The upper end of the heating pipe (2) is a heat exchanger of the boiler, characterized in that made in connection with the water tank (5). 제 1항에 있어서, 상기 본체외피(1) 내부에 내장되는 수조(5)의 바깥둘레에는 히팅파이프(2)와 이웃하여 나선형 오목홈(12)이 연속적으로 형성되어 이루어진 것을 특징으로 하는 보일러의 열교환기.The boiler according to claim 1, wherein a spiral concave groove (12) is formed adjacent to the heating pipe (2) in the outer circumference of the water tank (5) embedded in the main body shell (1). heat transmitter.
KR10-2002-0020811A 2002-04-17 2002-04-17 Heat Exchanger of Boiler KR100473326B1 (en)

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KR100689145B1 (en) * 2006-05-04 2007-03-09 주식회사 경동나비엔 Heat exchanger of boiler
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5179054U (en) * 1974-12-19 1976-06-22
JPS6018447U (en) * 1983-07-15 1985-02-07 松下電器産業株式会社 hot water boiler
KR900010434Y1 (en) * 1988-01-29 1990-11-17 가부시기가이샤 미야꼬닛도 Pouch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5179054U (en) * 1974-12-19 1976-06-22
JPS6018447U (en) * 1983-07-15 1985-02-07 松下電器産業株式会社 hot water boiler
KR900010434Y1 (en) * 1988-01-29 1990-11-17 가부시기가이샤 미야꼬닛도 Pouch

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