KR20020067107A - A heat exchanger of exhaust gas - Google Patents
A heat exchanger of exhaust gas Download PDFInfo
- Publication number
- KR20020067107A KR20020067107A KR1020010007485A KR20010007485A KR20020067107A KR 20020067107 A KR20020067107 A KR 20020067107A KR 1020010007485 A KR1020010007485 A KR 1020010007485A KR 20010007485 A KR20010007485 A KR 20010007485A KR 20020067107 A KR20020067107 A KR 20020067107A
- Authority
- KR
- South Korea
- Prior art keywords
- exhaust gas
- heat
- waste heat
- recovery apparatus
- inner cylinder
- Prior art date
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- 239000002918 waste heat Substances 0.000 claims abstract description 53
- 238000011084 recovery Methods 0.000 claims abstract description 42
- 239000007789 gas Substances 0.000 claims description 58
- 239000002912 waste gas Substances 0.000 claims description 17
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 11
- 239000003546 flue gas Substances 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000498 cooling water Substances 0.000 description 13
- 239000002826 coolant Substances 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (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
Description
본 발명은 배가스 폐열 회수장치에 관한 것으로서, 특히, 엔진에서 연소되어 배출되는 고온의 배가스가 가지는 폐열을 2 단계로 회수하여 높은 회수효율을 가지며, 고온의 배가스열을 엔진으로 구동되는 GHP(Gas Engine -driven Heat Pump)시스템의 난방운전시 냉각수 가열에 사용함으로서 실외기에서의 회수열량을 크게 하여 효율적인 난방이 이루어지도록 해주는 배가스 폐열 회수장치에 관한 것이다.The present invention relates to a waste gas waste heat recovery apparatus, and in particular, to recover the waste heat of the high-temperature exhaust gas discharged from the engine in two stages to have a high recovery efficiency, GHP (Gas Engine driven by high-temperature exhaust gas heat driven by the engine) It is related with the exhaust gas waste heat recovery system which is used for heating the cooling water during heating operation of -driven Heat Pump system to increase the amount of heat recovered from the outdoor unit so that efficient heating is achieved.
일반적으로 엔진으로 천연가스,LPG 또는 등유등의 연료와 산소를 혼합시켜 연소시키고, 연료의 연소시 발생되는 폭발력에 의해 엔진에 연결 설치된 피작동기구를 작동시키게 된다. 이때 연소의 부산물로서 발생하는 배가스는 외부로 배출하게 된다. 이러한 엔진에서 배출되는 배기가스는 대개 고온 상태인데, 열펌프장치 등에서 배가스의 열은 그대로 외부로 배출하면 열효율 측면에서는 매우 낮은 열효율을 가지게 된다.In general, the engine is combusted by mixing oxygen and fuel such as natural gas, LPG or kerosene, and the operated mechanism connected to the engine is operated by the explosive power generated during the combustion of the fuel. At this time, the exhaust gas generated as a byproduct of combustion is discharged to the outside. Exhaust gas discharged from such an engine is usually in a high temperature state. If heat of exhaust gas is discharged to the outside as it is in a heat pump device, it has a very low thermal efficiency in terms of thermal efficiency.
따라서, 이러한 배가스의 폐열을 회수하여 열효율을 향상시키기 위해 많은 배가스 폐열 회수장치가 제안된 바 있다.Therefore, many exhaust gas waste heat recovery apparatuses have been proposed in order to recover waste heat of such exhaust gas and improve thermal efficiency.
도 1 은 배가스의 폐열을 회수하기 위한 종래의 배가스 폐열 회수장치를 설명하기 위한 도면이다.1 is a view for explaining a conventional waste gas waste heat recovery apparatus for recovering the waste heat of the exhaust gas.
도 1 의 배가스 폐열 회수장치는 셸-앤-튜브(shell and tube)형 배가스 폐열 회수장치를 간략하게 도시한 것으로, 엔진의 엔진 헤드블록에 설치된 배기 다기관에 연결설치된 배기관(1)의 외주에 냉각수관(2)이 설치되어 배가스와 냉각수가 서로 상호 열교환하도록 구성되어 있다.The exhaust gas waste heat recovery device of FIG. 1 briefly illustrates a shell and tube type exhaust gas waste heat recovery device, and coolant is formed on an outer circumference of an exhaust pipe 1 connected to an exhaust manifold installed at an engine head block of an engine. The pipe 2 is provided and comprised so that exhaust gas and cooling water may mutually heat-exchange.
그러나, 이러한 종래의 배가스 폐열회수장치는 고온의 배가스와 저온의 냉각수의 전열면적이 거의 같은데도 불구하고 냉각수측은 액체 상태인데 반해 배가스는 열전달계수가 낮은 기체 상태로 흐르기 때문에 열전달율이 낮아지므로 폐열 회수율이 저하되는 문제점이 있다.However, in the conventional exhaust gas waste heat recovery apparatus, although the heat transfer area of the high temperature flue gas and the low temperature coolant is almost the same, the cooling water side is in the liquid state, whereas the exhaust gas flows in a gas state having a low heat transfer coefficient, so the heat transfer rate is low, so the waste heat recovery rate is reduced. There is a problem of deterioration.
따라서, 본 발명에서는 상기 종래 기술의 문제점을 해결하기 위한 것으로, 향상된 배가스 폐열의 회수효율을 확보하여 열펌프의 실외열교환기측에 생기는 서리를 제거하고 증발온도를 높게 유지하여 낮은 외기온에서도 GHP 시스템의 난방효과를 증대시키며, 콤팩트한 장치의 구현이 가능한 배가스 폐열 회수장치를 제공하는데 그 목적이 있다.Accordingly, the present invention is to solve the problems of the prior art, to ensure the recovery efficiency of the waste gas waste heat improved to remove frost generated on the outdoor heat exchanger side of the heat pump and to maintain the evaporation temperature high heating of the GHP system even at low outside temperature It is an object of the present invention to provide an exhaust gas waste heat recovery apparatus that increases the effect and enables the implementation of a compact apparatus.
이를 위해 본 발명에 따른 배가스 폐열 회수장치는 배기스측 전열면적 증가를 위하여 핀-튜브형식의 열교환기를 채택하였는데, 튜브 내부를 냉각수가 흐르게 하고 배가스의 낮은 열전달계수 보상을 위하여 배가스측에 핀을 설치하여 전열면적을 증가시켜 열교환이 이루어지도록 하였다. 이상과 같이 핀-튜브 열교환기에서 1차적으로 열교환이 이루어진다 하더라도 배가스가 상당한 고온이므로 핀-튜브 열교환기에서 엔진 내의 공간으로 방사되는 복사열이 존재하게 되는데, 본 폐열 회수장치에서는 핀-튜브형 열교환기를 하우징 내부에 설치하여 복사열이 방사되는 것을 차단하고, 1차 핀-튜브 열교환기에서 열교환을 마친 냉각수가 한번 더 하우징 내에서 열교환이 이루어지도록 물자켓을 설치하여 2단계로 열을 회수할 수 있도록 한 것이 특징이다.To this end, the exhaust gas waste heat recovery apparatus according to the present invention adopts a fin-tube type heat exchanger for increasing the heat transfer area of the exhaust side, and installs fins on the exhaust gas side to allow the cooling water to flow inside the tube and compensate for the low heat transfer coefficient of the exhaust gas. The heat transfer area was increased to allow heat exchange. As described above, even though the heat exchange is primarily performed in the fin-tube heat exchanger, since the exhaust gas is a very high temperature, radiant heat radiated from the fin-tube heat exchanger to the space in the engine exists. It is installed inside to prevent radiant heat from radiating, and it is possible to recover the heat in two stages by installing a material jacket so that the coolant which has completed heat exchange in the primary fin-tube heat exchanger is exchanged in the housing once more. It is characteristic.
또한, 상기 하우징의 배가스 입구에는 배가스 흐름 안내핀을 설치하였는데, 이는 엔진 배기구를 나온 배가스가 폐열회수장치 내에서 유입되면서 흐름 방향으로의 단면적이 갑자기 커지는데도 불구하고 배가스의 흐름이 폭 넓게 확대되지 않고 중심부에 흐름이 집중되어 핀-튜브형 열교환기 각 구분에서 열전달이 고르게 일어나지 않아 열전달효율이 떨어지는 것을 방지하기 위함이다. 흐름 안내핀을 통하여 폐열회수장치에 유입되는 배가스는 상하좌우 고르게 확산되어 핀-튜브 열교환기 전면부에 고르게 접촉하여 원활한 열교환이 가능하도록 하였다.In addition, an exhaust gas flow guide pin is installed at the exhaust gas inlet of the housing, and the exhaust gas flow does not widen widely even though the exhaust gas exiting the engine exhaust gas flows into the waste heat recovery apparatus and the cross section in the flow direction suddenly increases. This is to prevent the heat transfer efficiency from dropping because the heat is concentrated in the center and heat transfer does not occur evenly in each section of the fin-tube type heat exchanger. The exhaust gas flowing into the waste heat recovery device through the flow guide fins is spread evenly up, down, left, and right to evenly contact the front of the fin-tube heat exchanger to enable a smooth heat exchange.
도 1 은 종래의 배가스 폐열 회수장치를 설명하기 위한 도면.1 is a view for explaining a conventional waste gas waste heat recovery apparatus.
도 2 는 본 발명에 따른 배가스 폐열 회수장치의 사시도.Figure 2 is a perspective view of the waste gas waste heat recovery apparatus according to the present invention.
도 3 은 본 발명에 따른 배가스 폐열 회수장치의 횡단면도.Figure 3 is a cross-sectional view of the waste gas waste heat recovery apparatus according to the present invention.
도 4 는 본 발명에 따른 배가스 폐열 회수장치의 종단면도.Figure 4 is a longitudinal sectional view of the waste gas waste heat recovery apparatus according to the present invention.
※ 도면의 주요부분에 대한 부호의 설명 ※※ Explanation of code about main part of drawing ※
1 : 배기관 2 : 냉각수관1: exhaust pipe 2: cooling water pipe
10-1 : 내통 10-2 : 외통10-1: inner cylinder 10-2: outer cylinder
11 : 흡기구 12 : 배기구11 intake port 12 exhaust port
13 : 물 자켓 14 : 방열공간13: water jacket 14: heat dissipation space
20 : 핀-튜브형 열교환기 30 : 냉각수 배관20 fin-tube heat exchanger 30 coolant pipe
40 : 냉각수 인입관 41 : 냉각수 배출관40: coolant inlet pipe 41: coolant discharge pipe
50-1,2 : 흐름 안내핀50-1,2: Flow guide pin
이하, 첨부된 도면을 참조하여 본 발명에 따른 배가스 폐열 회수장치의 바람직한 일실시예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the exhaust gas waste heat recovery apparatus according to the present invention.
도 2 는 본 발명에 따른 배가스 폐열 회수장치의 사시도이고, 도 3 및 4 는 본 발명에 따른 배가스 폐열 회수장치의 횡단면도 및 종단면도이다.Figure 2 is a perspective view of the waste gas waste heat recovery apparatus according to the present invention, Figures 3 and 4 are a cross-sectional view and a longitudinal cross-sectional view of the waste gas waste heat recovery apparatus according to the present invention.
도시된 바와 같이, 본 발명의 배기가스 폐열 회수장치는 배가스 배관에서의 열손실 방지를 위하여 엔진의 엔진블록에 직접 부착되고, 배가스가 흡입되는 흡기구(11)가 상단부에 설치되고, 열교환된 배가스가 배기되는 배기구(12)가 하단부에 설치되어 배가스의 폐열 회수가 진행되는 하우징(10)이 있다.As shown, the exhaust gas waste heat recovery apparatus of the present invention is directly attached to the engine block of the engine in order to prevent heat loss in the exhaust gas pipe, an inlet 11 for inlet exhaust gas is installed at the upper end, and the heat exchanged exhaust gas is There is a housing 10 through which exhaust port 12 to be exhausted is installed at the lower end and the waste heat recovery of the exhaust gas proceeds.
상기 하우징(10)은 내통(10-1)과 내통의 외주를 감싸는 외통(10-2)으로 이루어진 이중 구조로 형성되고, 내통(10-1) 내부에는 흡기구를 통해 흡기된 배가스의 열을 흡수하기 위한 1차 열교환수단이 설치된다.The housing 10 is formed in a double structure consisting of an inner cylinder 10-1 and an outer cylinder 10-2 surrounding the outer circumference of the inner cylinder, and absorbs heat of the exhaust gas sucked through the intake port inside the inner cylinder 10-1. Primary heat exchange means is installed.
또한, 내통(10-1)과 외통(10-2)사이에는 하우징(10)의 외측으로 방사되는 배가스의 복사열과 냉각수가 2차 열교환하도록 하는 2 차 열교환수단이 설치된다.In addition, a secondary heat exchange means is installed between the inner cylinder 10-1 and the outer cylinder 10-2 so that the radiant heat of the exhaust gas radiated to the outside of the housing 10 and the coolant are secondary heat exchanged.
여기서, 1차 열교환수단은 내통(10-1)내부의 상단부과 하단부에 각각 핀-튜브형 열교환기(20)를 2단으로 설치하여 구성되고, 핀-튜브형 열교환기(20)는 외통(10-2)의 일측에 연결 설치된 냉각수 인입관(40)과 외통의 하측에 연결 설치된 냉각수 배출관(41)사이에 연결 설치된 냉각수 배관(30)이 구비되어 냉각수 배관(30)을 흐르는 냉각수와 배가스의 열교환이 진행된다.Here, the primary heat exchange means is configured by installing the fin-tube heat exchanger 20 in two stages at the upper end and the lower end of the inner cylinder 10-1, respectively, and the fin-tube heat exchanger 20 is the outer cylinder 10-. 2) is provided between the cooling water inlet pipe 40 and the cooling water discharge pipe 41 is installed connected to the lower side of the outer cylinder is connected to one side of the cooling water flowing through the cooling water pipe 30 and the heat exchange between the cooling water flowing through the cooling water pipe (30) Proceed.
그리고, 2 차 열교환수단은 내통(10-1)과 외통(10-2)사이의 방열공간(14)상단부에 설치된 물자켓(13)으로 구성되고, 상기 물자켓(13)은 냉각수 인입관(40)에서 냉각수가 공급되면 냉각수 배관(30)을 통해 급수되어 1차 열교환수단인 핀-튜브 열교환기에서 1차 열교환한 냉각수가 냉각수 배관 내를 흐르면서 내통(10-1)에서 외부로 방사되는 배가스의 복사열을 다시 흡열하도록 구성된다.And, the secondary heat exchange means is composed of a jacket 13 installed on the upper end of the heat dissipation space 14 between the inner cylinder (10-1) and the outer cylinder (10-2), the jacket 13 is a coolant inlet pipe ( When the coolant is supplied from 40), the exhaust water radiated outward from the inner cylinder 10-1 while the coolant water supplied through the coolant pipe 30 and the first heat exchanger in the fin-tube heat exchanger as the primary heat exchanger flows through the coolant pipe. It is configured to endotherm radiant heat again.
그리고, 상기 하우징의 흡기구(11)와 배기구(12)는 각각 내통(10-1)과 일체형으로 설치하여 배가스는 내통 내부에서만 흐르도록 하고, 하우징의 내통(10-1) 상단부에는 흡기구(11)에서 유입되는 배가스를 내통 내부 전체에 확산시키는 확산수단으로 흐름 안내핀((50-1,2)이 설치된다.In addition, the inlet port 11 and the exhaust port 12 of the housing are respectively installed integrally with the inner cylinder 10-1 so that the exhaust gas flows only inside the inner cylinder, and the inlet 11 at the upper end of the inner cylinder 10-1 of the housing. Flow guide pins (50-1, 2) are installed as a diffusion means for diffusing the exhaust gas flowing from the inside of the inner cylinder.
상기 흐름 안내핀(50-1,2)은 좌우 대칭되게 설치되고, 안쪽에서 바깥쪽으로 하향 경사지게 설치하여 흡기구로 유입된 배가스가 내통 내의 핀-튜브 열교환기(20)전면에 고르게 확산되도록 하여 핀-튜브 열교환기와의 접촉면적을 증가시킨다.The flow guide fins 50-1 and 2 are symmetrically installed, and are inclined downward from the inside to the outside so that the exhaust gas flowing into the inlet is evenly spread on the entire surface of the fin-tube heat exchanger 20 in the inner cylinder. Increase the contact area with the tube heat exchanger.
상기의 구성으로 된 본 발명에 따른 배가스 폐열 회수장치는 배가스 폐열의 회수가 2 단계로 이루어져 배가스의 폐열 회수효율이 향상된다.The waste gas waste heat recovery apparatus according to the present invention having the above configuration has two stages of recovery of waste gas waste heat, thereby improving waste heat recovery efficiency of the waste gas.
먼저, 배가스 폐열의 1 차 회수는 하우징의 내통(10-1)내부에 설치된 1 차 열교환수단인 다수개의 핀-튜브형 열교환기(20)에 의해 이루어진다.First, the primary recovery of the waste gas waste heat is made by a plurality of fin-tube type heat exchangers 20 which are primary heat exchange means installed in the inner cylinder 10-1 of the housing.
즉, 흡기구(11)를 통해 하우징의 내통(10-1)으로 유입된 배가스는 내통 내부에 설치된 다수개의 핀-튜브형 열교환기(20)에서 냉각수와 상호 열교환하여 폐열이 회수된다.That is, the exhaust gas introduced into the inner cylinder 10-1 of the housing through the inlet 11 is heat-exchanged with the cooling water in a plurality of fin-tube type heat exchangers 20 installed inside the inner cylinder to recover waste heat.
이때, 배가스는 흡기구(11)에서 흡기됨과 동시에 제 1 및 제 2 흐름 안내핀(50-1,2)에 의해 좌우로 분산되면서 내통(10-1)전체로 확산되므로 핀-튜브형 열교환기(20)의 전면부에 골고루 확산된 상태에서 열교환되고, 배기구(12)를 통해 배기된다.At this time, the exhaust gas is inhaled at the inlet 11 and at the same time is distributed to the left and right by the first and second flow guide fins (50-1, 2) to diffuse throughout the inner tube (10-1) is fin-tube type heat exchanger (20) Heat exchanged in the state spreading evenly in the front portion of the), and is exhausted through the exhaust port (12).
따라서, 배가스가 열교환기(20)전면의 일부에서만 집중되어 유동하는데 기인하는 유효전열면적의 감소를 피할 수 있어 효율적인 열교환이 가능해지고, 이에 따라 폐열의 열회수율을 향상시킬 수 있다.Therefore, it is possible to avoid the reduction of the effective heat transfer area due to the concentration of the exhaust gas flowing in only a part of the front surface of the heat exchanger 20, thereby enabling efficient heat exchange, thereby improving the heat recovery rate of the waste heat.
그리고, 배기가스 폐열의 2 차 회수는 하우징의 내통(10-1)과 외통(10-2)사이의 방열공간(14) 상단부에 형성된 물자켓(13)에서 이루어진다.And, the secondary recovery of the waste gas waste heat is made in the jacket 13 formed in the upper end of the heat dissipation space 14 between the inner cylinder 10-1 and the outer cylinder 10-2 of the housing.
즉, 1차 열교환수단인 핀-튜브 열교환기(20)에서 1차적으로 열교환이 이루어진 배가스는 아직 상당한 고온이므로 내통과 외통 사이의 방열공간(14)으로 상당량의 복사열을 전달하게 되고, 이 복사열을 방열공간의 상단부에 설치된 물자켓(13)의 냉각수에서 2차적으로 흡열된다.That is, since the first heat exchanger in the fin-tube heat exchanger 20, which is the primary heat exchanger, is still at a considerable temperature, the exhaust gas is still transferred to a heat radiation space 14 between the inner and outer cylinders. It is secondarily endothermic in the cooling water of the jacket 13 installed on the upper end of the heat dissipation space.
따라서, 본 발명에 따른 배가스 폐열 회수장치는 배가스의 폐열 회수효율이 향상된다.Therefore, the waste gas waste heat recovery apparatus according to the present invention improves the waste heat recovery efficiency of the exhaust gas.
상술한 바와 같이 본 발명에 따른 배기가스 폐열 회수장치는 1 차 열교환수단인핀-튜브 열교환기에 의해 배가스의 폐열이 1 차 회수되고, 2 차 열교환수단인 물자켓에 의해 배가스의 복사열이 2차 회수됨으로써 배기가스가 배기되면서 낭비되는 폐열을 효율적으로 회수하게 되어 전체적인 열효율을 향상시키게 된다.As described above, in the waste gas waste heat recovery apparatus according to the present invention, the waste heat of the exhaust gas is firstly recovered by a fin-tube heat exchanger, which is a primary heat exchanger, and the radiant heat of the exhaust gas is secondaryly recovered by a jacket, which is a secondary heat exchanger. As a result, the waste heat wasted while the exhaust gas is exhausted is efficiently recovered, thereby improving the overall thermal efficiency.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010007485A KR20020067107A (en) | 2001-02-15 | 2001-02-15 | A heat exchanger of exhaust gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010007485A KR20020067107A (en) | 2001-02-15 | 2001-02-15 | A heat exchanger of exhaust gas |
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| KR20020067107A true KR20020067107A (en) | 2002-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020010007485A KR20020067107A (en) | 2001-02-15 | 2001-02-15 | A heat exchanger of exhaust gas |
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| KR (1) | KR20020067107A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5893673U (en) * | 1981-12-12 | 1983-06-24 | 株式会社クボタ | Heat exchanger |
| JPH0449622U (en) * | 1990-09-03 | 1992-04-27 | ||
| JPH0754649A (en) * | 1993-08-16 | 1995-02-28 | Sanyo Electric Co Ltd | Waste gas heat recovery device |
| KR20000019521U (en) * | 1999-04-14 | 2000-11-15 | 김창수 | A recycling device of used heat for a boiler |
-
2001
- 2001-02-15 KR KR1020010007485A patent/KR20020067107A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5893673U (en) * | 1981-12-12 | 1983-06-24 | 株式会社クボタ | Heat exchanger |
| JPH0449622U (en) * | 1990-09-03 | 1992-04-27 | ||
| JPH0754649A (en) * | 1993-08-16 | 1995-02-28 | Sanyo Electric Co Ltd | Waste gas heat recovery device |
| KR20000019521U (en) * | 1999-04-14 | 2000-11-15 | 김창수 | A recycling device of used heat for a boiler |
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