KR200195776Y1 - A heating system by using the thermal of exhaust gas - Google Patents

A heating system by using the thermal of exhaust gas Download PDF

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Publication number
KR200195776Y1
KR200195776Y1 KR2020000011493U KR20000011493U KR200195776Y1 KR 200195776 Y1 KR200195776 Y1 KR 200195776Y1 KR 2020000011493 U KR2020000011493 U KR 2020000011493U KR 20000011493 U KR20000011493 U KR 20000011493U KR 200195776 Y1 KR200195776 Y1 KR 200195776Y1
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South Korea
Prior art keywords
boiler
heat exchanger
heating
line
inlet
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KR2020000011493U
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Korean (ko)
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서동찬
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서동찬
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    • 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
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F28D21/0005—Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems
    • F28D21/0007—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
    • F24H1/40—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
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
    • F24H9/139—Continuous flow heaters
    • 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
    • F28D2021/0024—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for combustion apparatus, e.g. for boilers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

본 고안은 보일러의 폐열회수 난방장치에 관한 것으로, 보일러(B)의 배기가스 배출을 위한 연도(C)가 설치되는 보일러의 연소실과 통하는 상부공간(D) 내측에 삽입설치되고 입수구(11)와 출수구(12)는 연도(C)를 관통하여 외부로 노출되도록 한 열교환기(10)와, 이 열교환기(10)의 입수구(11)와 보일러(B)에 연결된 난방라인(L)의 환수부(L1)에 설치된 온수순환펌프(P)사이에 연결되는 입수라인(13)과, 열교환기(10)의 출수구(12)와 난방라인(L)의 공급부(L2)사이에 연결되는 출수라인(14)을 포함하여 이루어진다.The present invention relates to a waste heat recovery heating device of the boiler, which is inserted into the upper space (D) communicating with the combustion chamber of the boiler in which the flue (C) for exhaust gas discharge of the boiler (B) is installed and the inlet (11) and The outlet 12 is a heat exchanger 10 which is exposed to the outside through the flue (C), and the return portion of the heating line (L) connected to the inlet 11 and the boiler (B) of the heat exchanger (10) Inlet line 13 connected between the hot water circulation pump (P) installed in (L1), and the outlet line connected between the outlet (12) of the heat exchanger 10 and the supply part (L2) of the heating line (L) ( 14).

Description

보일러의 폐열회수 난방장치 {A Heating System by Using The Thermal of Exhaust Gas}Waste Heat Recovery Heating System of Boiler {A Heating System by Using The Thermal of Exhaust Gas}

본 고안은 보일러의 폐열회수 난방장치에 관한 것으로, 구조가 간단하고 비용도 저렴하며 배기가스의 폐열을 효과적으로 흡수하여 이를 난방에 보조할 수 있도록 함으로써 난방비를 절감할 수 있도록 한 것이다.The present invention relates to a waste heat recovery heating device of a boiler, and the structure is simple, low cost, and to reduce the heating cost by effectively absorbing the waste heat of the exhaust gas to assist it with heating.

보일러의 배기가스를 통하여 배출되는 폐열을 회수하기 위한 종래의 기술로는, 국내실용신안등록출원 제84-3476호의 기름보일러의 배기가스(폐열)를 이용한 온수발생장치와, 동공개 제98-14646호의 보일러의 폐열에 의한 온수예열장치를 예로 들 수 있는데, 전자의 구성은 도 1 및 도 2에 도시된 바와 같이 배기관(2) 내부에 가열파이프(3)를 설치하면서 외부로 가열수조(3')를 설치한 구조로 이루어져 있고, 후자는 도 3에 도시한 바와 같이 보일러에 설치된 배기통 내부에 장치되어 배기가스의 폐열을 흡수하여 자연순환시키는 이중열 교환기와 배기가스가 최대 넓은 표면적과 부딪치고 머물러 열을 최대로 흡수시킬 수 있는 폐열흡수공간 장치통과, 폐열을 흡수하여 예열된 물을 저장하는 축열조 탱크와 상기 예열된 물을 저장한 축열조 탱크조의 물을 보일러 급탕온수배관에 연결 사용하는 배관으로 이루어져 있다.Conventional techniques for recovering the waste heat discharged through the exhaust gas of the boiler, a hot water generator using the exhaust gas (waste heat) of the oil boiler of the Korean Utility Model Registration Application No. 84-3476, and Pub. For example, the hot water preheating device by waste heat of the boiler of the arc, the configuration of the former is a heating water tank (3 ') to the outside while installing the heating pipe (3) inside the exhaust pipe (2) as shown in Figs. ), The latter is installed inside the exhaust pipe installed in the boiler as shown in FIG. 3, and the double heat exchanger and exhaust gas, which absorbs waste heat of the exhaust gas and naturally circulates, collides with and stays at the largest surface area. Waste heat absorbing space device passage that can absorb the maximum, the heat storage tank tank for absorbing the waste heat to store the preheated water and the water in the heat storage tank tank tank for storing the preheated water It consists of piping used for connection to hot water supply pipe.

한편, 상기한 종래의 페열회수장치에 있어서는 배기가스가 통과하는 부분에 설치되는 열교환 파이프 외에도 이를 보호하기 위한 폐열흡수공간을 위한 통 또는 별도의 배기관이나 가열수조를 통형상으로 만들어 보일러 상부에 부착하는 구조로 이루어져 있었기 때문에 이의 제조 코스트가 높고, 이로 인하여 소비자가 이를 구입하여 설치하기 위하여는 많은 비용을 부담하여야 하는 문제점이 있었으며, 상기한 열교환기와 통의 설치를 위한 공간이 확보되어야 하는 문제점이 있었다.On the other hand, in the conventional waste heat recovery apparatus, in addition to the heat exchange pipe installed in the portion through which the exhaust gas passes, a tube for waste heat absorption space for protecting it or a separate exhaust pipe or heating water tank is formed into a tubular shape and attached to the upper portion of the boiler. Due to the structure, the manufacturing cost thereof is high, and therefore, there is a problem in that a consumer has to pay a lot of costs in order to purchase and install the same, and there is a problem in that a space for installing the heat exchanger and the tube has to be secured.

본 고안은 상기한 종래의 제반 문제점을 해소하기 위하여 안출된 것으로, 본 고안의 목적은 폐열회수장치를 위한 별도의 공간을 요구로 하지 않아 이의 설치와 유지보수가 간편하고, 그 제조비용도 저렴하여 각 가정에서 이를 용이하게 구입하여 설치함으로써 난방유지비를 효과적으로 절감할 수 있도록 하는데 있다.The present invention has been devised to solve the above-mentioned conventional problems, the purpose of the present invention does not require a separate space for the waste heat recovery device, its installation and maintenance is simple, and its manufacturing cost is also low By easily purchasing and installing it in each home, it is possible to effectively reduce heating maintenance costs.

이와 같은 목적을 달성하기 위하여 본 고안은, 보일러 배기가스의 폐열을 회수하여 난방보조를 하는 폐열회수장치에 있어서, 상기 보일러의 배기가스 배출을 위한 연도가 설치되는 보일러의 연소실과 연통된 상부공간 내측에 삽입설치되고 입수구와 출수구는 연도를 관통하여 외부로 노출되도록 한 열교환기와, 이 열교환기의 입수구와 보일러에 연결된 난방라인의 온수순환펌프 사이에 설치되는 입수라인과, 상기 열교환기의 출수구와 난방라인의 공급부사이에 설치되는 출수라인을 포함하여 이루어지는 보일러의 폐열회수 난방장치를 제공한다.In order to achieve the above object, the present invention, in the waste heat recovery apparatus for recovering the waste heat of the boiler exhaust gas to assist the heating, inside the upper space communicating with the combustion chamber of the boiler in which the flue for exhaust gas discharge of the boiler is installed. A heat exchanger inserted into the inlet and an outlet and exposed to the outside through the year, an inlet line installed between the inlet of the heat exchanger and the hot water circulation pump of the heating line connected to the boiler, and the outlet and heating of the heat exchanger It provides a waste heat recovery heating device of a boiler comprising an outlet line installed between supply parts of the line.

본 고안은 보일러의 연소실에서 발생한 배기가스의 폐열을 흡수하기 위한 열교환기가 보일러의 내부에 즉, 보일러의 연소실 상부에 위치한 연도결합구 내측의 공간에 삽입설치되므로 종래기술에서와 같이 보일러의 상부에 별도의 공간을 차지하거나 열교환기의 지지와 커버를 위한 통체를 따로 제작하지 않아도 되는 장점을 가지며, 열교환기를 상기 공간에 삽입시켜 입수구와 출수구를 연도결합구에 결합되는 연도의 내부를 통해 외측으로 빼내어 입수라인과 출수라인을 연결시켜 주면 되는 것이고, 상기 열교환기는 연도고정용 캡과 연도에 의해 밀폐되므로 외관상으로도 단순한 형태를 가지게 된다.The present invention is a heat exchanger for absorbing the waste heat of the exhaust gas generated in the combustion chamber of the boiler is inserted into the interior of the boiler, that is, in the space inside the flue coupler located in the upper combustion chamber of the boiler separate from the top of the boiler as in the prior art It has the advantage that it does not need to make a separate cylinder for the support and the cover of the heat exchanger or the heat exchanger, and the heat exchanger is inserted into the space and the inlet and the outlet are pulled out through the inside of the flue which is coupled to the flue joint. The heat exchanger is sealed by the flue cap and the flue, so that the heat exchanger has a simple shape in appearance.

도 1은 종래기술을 도시한 단면도,1 is a cross-sectional view showing a prior art,

도 2는 도 1에 도시된 열교환기의 사시도,Figure 2 is a perspective view of the heat exchanger shown in Figure 1,

도 3은 또다른 종래기술을 도시한 단면도,3 is a cross-sectional view showing another prior art;

도 4는 본 고안에 의한 폐열회수 난방장치의 분해사시도,4 is an exploded perspective view of the waste heat recovery heating apparatus according to the present invention,

도 5는 본 고안에 의한 폐열회수 난방장치의 결합사시도,5 is a combined perspective view of the waste heat recovery heating apparatus according to the present invention,

도 6은 본 고안에 의한 폐열회수 난방장치의 단면도,6 is a cross-sectional view of the waste heat recovery heating apparatus according to the present invention,

도 7은 본 고안에 의한 난방장치에 사용되는 열교환기의 사시도이다.7 is a perspective view of a heat exchanger used in the heating apparatus according to the present invention.

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

B : 보일러 C : 연도B: Boiler C: Year

D : 상부공간 10 : 열교환기D: Upper space 10: Heat exchanger

11 : 입수구 12 : 출수구11: inlet 12: outlet

13 : 입수라인 14 : 출수라인13: acquisition line 14: extraction line

15 : 연도고정용 캡 16 : 보울트15: year fixing cap 16: bolt

17 : 밴드 18 : 구멍17: band 18: hole

L : 난방라인 L1 : 환수부L: Heating line L1: Return section

L2 : 공급부 V1,V2 : 개폐밸브L2: Supply part V1, V2: On-off valve

이하, 본 고안을 한정하지 않는 바람직한 실시예를 첨부된 도면에 의하여 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments that do not limit the present invention will be described in detail.

도 4는 본 고안에 의한 폐열회수장치의 분해사시도이고, 도 5는 결합사시도이며, 도 6은 단면도로서, 본 고안은 보일러 배기가스의 폐열을 회수하여 난방보조를 하는 폐열회수장치에 있어서, 상기 보일러(B)의 배기가스 배출을 위한 연도(C)가 설치되는 보일러(B)의 연소실 상부공간(D)내측에 삽입설치되고 입수구(11)와 출수구(12)는 상기 연도(C)를 관통하여 외부로 노출되도록 한 열교환기(10)와, 이 열교환기(10)의 입수구(11)와 보일러(B)에 연결된 난방라인(L)의 환수부(L1)에 설치된 온수 순환펌프(P)사이에 연결되는 입수라인(13)과, 상기 열교환기(10)의 출수구 (12)와 난방라인(L)의 공급부(L2)사이에 설치되는 출수라인(14)을 포함하여 이루어진다.Figure 4 is an exploded perspective view of the waste heat recovery apparatus according to the present invention, Figure 5 is a combined perspective view, Figure 6 is a cross-sectional view, the present invention is a waste heat recovery apparatus for recovering the waste heat of the boiler exhaust gas to assist the heating, Inserted inside the combustion chamber upper space (D) of the boiler (B) in which the flue (C) for exhaust gas discharge of the boiler (B) is installed, the inlet 11 and outlet 12 penetrate the flue (C) Hot water circulation pump (P) installed in the heat exchanger (10) to be exposed to the outside and the return portion (L1) of the heating line (L) connected to the inlet (11) of the heat exchanger (10) and the boiler (B). It comprises an inlet line 13 connected between, and the outlet line 14 is installed between the outlet 12 of the heat exchanger 10 and the supply part L2 of the heating line (L).

도면중 부호 '15'는 연도고정용 캡이고, 부호 '16'은 이 캡(15)을 보일러(B)의 상부에 고정시키기 위한 보울트이며, '17'은 연도(C)를 상기 캡(15)에 고정시키기 위한 밴드이고, '18'은 연도의 측부에 천공되는 구멍으로, 이 구멍(18)을 통해 열교환기(10)의 입수구(11)와 출수구(12)가 외부로 노출되어 입수라인과 출수라인에 연결될 수 있게 된다.In the figure, '15' is a cap for fixing the flue, '16' is a bolt for fixing the cap 15 to the upper part of the boiler B, and '17' is a cap for the year C. ) Is a band to be fixed to, and '18' is a hole drilled on the side of the flue, through which the inlet port 11 and the outlet port 12 of the heat exchanger 10 are exposed to the outside. It can be connected to the overflow line.

상기 입수구(11)와 출수구(12)에는 각각 입수라인(13)과 출수라인(14)이 연결구(19,19')에 의해 결합되며, 이 입수라인(13)과 출수라인(14)은 난방라인(L)에 T-조인트로 결합된다.The inlet line 11 and the outlet port 12 are respectively coupled to the inlet line 13 and the outlet line 14 by the connector (19, 19 '), the inlet line 13 and outlet line 14 is heated Coupled to the line L with a T-joint.

또한, 상기 입수라인(13)과 출수라인(14)에는 각각 개폐밸브(V1,V2)가 설치된다.In addition, on and off valves V1 and V2 are installed at the inlet line 13 and the outlet line 14, respectively.

도 7은 본 고안에 의한 열교환기를 도시한 것으로, 본 고안의 열교환기(10)는 코일형으로 이루어져 있으며, 이 열교환기(10)의 직경(ø)은 이 열교환기가 설치되는 보일러(B)의 상부공간(D)에 삽입가능한 최대의 직경으로 제작하며, 관사이의 간격(d)은 일정하게 하고 입수구(11)는 출수구(12)보다 하부에 위치하도록 코일의 내측을 통해 수직 상부로 인출한다.Figure 7 shows a heat exchanger according to the present invention, the heat exchanger 10 of the present invention is made of a coil type, the diameter (ø) of the heat exchanger 10 of the boiler (B) in which the heat exchanger is installed It is manufactured to the maximum diameter that can be inserted into the upper space (D), the spacing (d) between the pipes to be constant and the inlet 11 is drawn out vertically through the inside of the coil to be located below the outlet (12). .

이와 같이 구성된 본 고안은 보일러(B)가 가동되면서 보일러(B)의 연소실 둘레에 위치한 난방용 주 열교환기(도시안됨)에 의해 난방수가 가열됨과 동시에 연소실에서 연소되고 난 고온의 배기가스가 연도(C)를 통해 배출되기 전에 본 고안의 열교환기(10)가 설치된 상부공간(D)을 통과할 때 고온의 가스가 열교환기(10)와 접촉하면서 열교환기 내부의 물을 가열시키게 되는 것이며, 가열된 열교환기 내부의 물은 온수 순환펌프(P)에 의해 순환되어 난방라인(L)으로 공급된다.The present invention configured as described above has the heating water heated by the main heat exchanger (not shown) located around the combustion chamber of the boiler B while the boiler B is operating, and at the same time, the high-temperature exhaust gas which is burned in the combustion chamber is the flue (C). When passing through the upper space (D) in which the heat exchanger 10 of the present invention is installed before being discharged through), the hot gas comes into contact with the heat exchanger 10 to heat the water inside the heat exchanger. Water inside the heat exchanger is circulated by the hot water circulation pump (P) and supplied to the heating line (L).

이로써, 보일러에서 연소될 때 발생되는 열량을 주 열교환기에서 뿐만 아니라 그대로 배출되는 고온의 배기가스에서도 흡수함으로써 난방을 위한 보일러의 열효율을 높일 수 있게 되는 것이며, 또한 난방수를 원하는 온도로 높일때까지의 도달시간을 단축시킬 수 있으므로 버너의 가동시간을 단축하여 결국 보일러의 연료소비량도 줄일 수 있어 난방비를 절감할 수 있게 되는 것이다.Thus, by absorbing the heat generated when burning in the boiler not only in the main heat exchanger but also in the high-temperature exhaust gas discharged as it is, it is possible to increase the thermal efficiency of the boiler for heating, and also to increase the heating water to the desired temperature. Because it can shorten the arrival time of the burner, the burner operation time can be shortened, thus reducing the fuel consumption of the boiler, thereby reducing the heating cost.

또한, 본 고안은 열교환기가 보일러의 연소실에서 연소되고 난 배기가스가 배출되는 최초의 위치에 설치되어 있으므로 최대의 열교환을 이룰 수 있을 뿐만 아니라, 본 고안의 열교환기는 보일러 외부로 노출되지 않고 보일러 내부에 설치되는 것과 같아서 별도의 공간을 차지하지 않으므로 청결한 상태를 유지할 수 있으며, 이의 설치도 간단하여 각 가정에서 저렴한 비용으로 간단하게 설치할 수 있다.In addition, the present invention is because the heat exchanger is installed in the first position where the exhaust gas is discharged from the combustion chamber of the boiler to achieve the maximum heat exchange, the heat exchanger of the present invention is not exposed to the outside of the boiler, As it is installed, it does not take a separate space, so it can be kept clean, and its installation is simple, so it can be easily installed at low cost in each home.

이상 설명한 바와 같이, 본 고안은 열교환기를 보일러의 연소실 상부에 위치한 연도결합부 공간에 삽입설치하고 이 열교환기를 난방라인의 공급부와 환수부에 접속시킨 것으로, 본 고안에 의하면 보일러의 배기가스를 통해 배출되는 폐열회수장치를 위한 별도의 공간을 요구로 하지 않아 이의 설치와 유지보수가 간편하고, 그 제조비용도 저렴하여 각 가정에서 이를 용이하게 구입하여 설치함으로써 난방비를 절감할 수 있는 실용적인 효과를 갖는다.As described above, the present invention inserts and installs a heat exchanger into the flue joint space located above the combustion chamber of the boiler, and connects the heat exchanger to the supply and return portions of the heating line. It does not require a separate space for the waste heat recovery device is easy to install and maintain it, and the manufacturing cost is also low, it has a practical effect to reduce the heating cost by easily purchased and installed in each home.

Claims (3)

보일러 배기가스의 폐열을 회수하여 난방보조를 하는 폐열회수장치에 있어서,In the waste heat recovery device for recovering the waste heat of the boiler exhaust gas to assist heating, 상기 보일러(B)의 배기가스 배출을 위한 연도(C)가 설치되는 보일러의 연소실 상부공간(D)내측에 삽입설치되고 입수구(11)와 출수구(12)는 연도(C)를 관통하여 외부로 노출되도록 한 열교환기(10)와, 이 열교환기(10)의 입수구(11)와 보일러에 연결된 난방라인(L)의 환수부(L1)에 설치된 온수 순환펌프(P)사이에 연결되는 입수라인(13)과, 상기 열교환기(10)의 출수구(12)와 난방라인(L)의 공급부(L2)사이에 연결되는 출수라인(14)을 포함하여 이루어지는 것을 특징으로 하는 보일러의 폐열회수 난방장치.Inserted inside the combustion chamber upper space (D) of the boiler in which the flue (C) for exhaust gas discharge of the boiler (B) is installed and the inlet 11 and outlet 12 through the flue (C) to the outside An inlet line connected between the heat exchanger 10 to be exposed and the inlet port 11 of the heat exchanger 10 and the hot water circulation pump P installed in the return unit L1 of the heating line L connected to the boiler. And a discharge line 14 connected between the outlet 12 of the heat exchanger 10 and the supply part L2 of the heating line L, and the waste heat recovery heating apparatus of the boiler. . 제 1항에 있어서,The method of claim 1, 상기 입수라인(13)에는 개폐밸브(V2)가 설치되는 것을 특징으로 하는 보일러의 폐열회수 난방장치.Waste water recovery heating device of the boiler, characterized in that the inlet and outlet valve (V2) is installed in the inlet line (13). 제 1항에 있어서,The method of claim 1, 상기 열교환기(10)는 동파이프로 이루어진 것을 특징으로 하는 보일러의 폐열회수 난방장치.The heat exchanger 10 is a waste heat recovery heating device of the boiler, characterized in that the copper pipe.
KR2020000011493U 2000-04-22 2000-04-22 A heating system by using the thermal of exhaust gas KR200195776Y1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101941406B1 (en) * 2018-07-09 2019-01-22 조상문 Brazier type boiler having a water-tank of spiral structure
KR20190026504A (en) 2017-09-05 2019-03-13 인하대학교 산학협력단 Waste Heat Recovery Boiler for Additionally Spraying Water
KR102361919B1 (en) 2020-12-10 2022-02-14 정학석 Household boilers capable of recovering waste heat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190026504A (en) 2017-09-05 2019-03-13 인하대학교 산학협력단 Waste Heat Recovery Boiler for Additionally Spraying Water
KR101941406B1 (en) * 2018-07-09 2019-01-22 조상문 Brazier type boiler having a water-tank of spiral structure
KR102361919B1 (en) 2020-12-10 2022-02-14 정학석 Household boilers capable of recovering waste heat

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