KR20160008858A - Thermoelectric generation apparatus with multi stage for waste heat - Google Patents

Thermoelectric generation apparatus with multi stage for waste heat Download PDF

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KR20160008858A
KR20160008858A KR1020140089189A KR20140089189A KR20160008858A KR 20160008858 A KR20160008858 A KR 20160008858A KR 1020140089189 A KR1020140089189 A KR 1020140089189A KR 20140089189 A KR20140089189 A KR 20140089189A KR 20160008858 A KR20160008858 A KR 20160008858A
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plate
waste heat
thermoelectric
thermoelectric generator
thermoelectric generation
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KR1020140089189A
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Korean (ko)
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KR101694979B1 (en
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김봉서
민복기
오민욱
박수동
이희웅
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한국전기연구원
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/002—Generators
    • 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 from exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy the devices using heat
    • F01N5/025—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy the devices using heat the device being thermoelectric generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20263—Heat dissipaters releasing heat from coolant

Abstract

The present invention relates to a thermoelectric generation apparatus for waste heat recovery using a thermoelectric element. More specifically, the present invention relates to a thermoelectric generation apparatus with a multistage structure for waste heat recovery which is designed to increase thermoelectric generation efficiency by first generating the first waste heat discharged from a waste heat discharge unit in a thermoelectric generation element for mid-temperature use and second generating the second waste heat discharged from the thermoelectric generation element for mid-temperature use in a thermoelectric generation element for room temperature use as the thermoelectric generation element for mid-temperature use and the thermoelectric generation element for room temperature are installed with a multistage structure in the outside of a waste heat discharge unit from which waste heat is discharged. The technical gist of the present invention is the thermoelectric generation apparatus with a multistage structure for waste heat recovery, wherein the thermoelectric generation apparatus installed in the outside of the waste heat discharge unit from which waste heat is discharged, comprises: a first plate which is divided into plural parts so that the inner side is installed closely in the outer side of the waste heat discharge unit through mutual coupling and the outer side includes a plurality of flat surfaces; a first thermoelectric generation element wherein each one side is installed closely in the flat surface of the first plate to be generated in a first temperature area; a second plate wherein the other surface of the first thermoelectric generation element is installed closely in the flat surface of the first plate, respectively, and a first cooling pin is formed in an external surface; a second thermoelectric generation element wherein each one side is installed closely in the external surface of the second plate to be generated in a second temperature area which is relatively lower than the first temperature area; a third plate wherein the other side of the second thermoelectric generation element is installed closely in the external surface of the second plate, respectively, and a second cooling pin is formed in an external surface; and a first cooling pipe installed in the third plate and configured to cool the other surface of the second thermoelectric generation element.

Description

복층 구조의 폐열 회수형 열전발전장치{Thermoelectric generation apparatus with multi stage for waste heat}BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermoelectric generation apparatus,

본 발명은 열전소자를 이용한 폐열 회수형 열전발전장치에 관한 것으로, 더욱 상세하게는 폐열이 배출되는 폐열배출부의 외측에 중온용 열전발전소자와 상온용 열전발전소자가 복층으로 설치됨에 따라 폐열배출부에서 배출되는 1차 폐열을 중온용 열전발전소자에서 1차 발전하고 중온용 열전발전소자에서 배출되는 2차 폐열을 상온용 열전발전소자에서 2차 발전함으로써 열전발전효율을 더욱 높일 수 있는 복층 구조의 폐열 회수형 열전발전장치에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a waste heat recovery type thermoelectric generator using a thermoelectric element, and more particularly, to a thermoelectric generator for a thermoelectric generator and a thermoelectric generator for a room temperature, A waste heat of a multi-layer structure capable of further increasing the efficiency of thermoelectric generation by secondary generation of primary waste heat discharged from the thermoelectric generator for middle temperature and secondary heat discharged from the thermoelectric generator for middle temperature by the secondary thermoelectric generator Type thermoelectric generator.

일반적으로 열전발전장치는 열전소자(thermoelement)의 제베크효과를 이용하여 열에너지로부터 전기에너지를 발생시키는 장치로서, 주로 자동차의 배기관, 보일러의 튜브, 전기로의 배관 등과 같이 폐열이 외부로 배출되는 폐열배출부의 외측에 설치된다. Generally, a thermoelectric generator is a device for generating electric energy from heat energy by utilizing the effect of the heat treatment of a thermoelement. The thermoelectric generator is a device for discharging waste heat discharged from the waste heat to the outside such as an exhaust pipe of an automobile, a tube of a boiler, And is installed outside the part.

이러한 종래의 열전발전장치는 폐열배출부를 따라 둘러 설치되는 열전달부재, 상기 열전달부재의 외면에 고온부 측이 접촉되게 설치되는 열전발전소자, 및 상기 열전발전소자의 저온부 측에 설치되는 냉각수단을 포함하여 구성된다. Such a conventional thermoelectric generator includes a heat transfer member which is disposed along the waste heat discharging portion, a thermoelectric generator which is provided on the outer surface of the heat transfer member so as to be in contact with the thermoelectric generator, and a cooling unit which is installed on the low temperature side of the thermoelectric generator. do.

즉, 폐열배출부에서 배출되는 폐열에 의해 열전발전소자의 고온부 측이 가열되고 외부의 냉각수단에 의해 열전발전소자의 저온부 측이 냉각됨으로써 열전발전소자의 고온부 측과 저온부 측 간의 온도 차에 의해 발전하게 된다. That is, the high temperature side of the thermoelectric generator is heated by the waste heat discharged from the waste heat discharging portion, and the low temperature side of the thermoelectric generator is cooled by the external cooling means, whereby the temperature difference between the high temperature side and the low temperature side of the thermoelectric generator is developed.

그러나 종래의 열전발전장치는 폐열배출부의 외측에 복수 개의 열전발전소자가 단층으로만 설치됨에 따라 폐열배출부에서 배출되는 폐열의 일부만을 이용하여 발전함으로써 열전발전효율이 떨어지는 문제점이 있다. However, in the conventional thermoelectric generator, since a plurality of thermoelectric power generators are provided only by a single layer on the outside of the waste heat discharging portion, there is a problem that the efficiency of thermoelectric generating power is reduced by using only a part of the waste heat discharged from the waste heat discharging portion.

즉, 열전발전소자의 경우 특정 온도 영역 대에서 발생하는 고온부 측과 저온부 측 간의 온도 차이에 의해 발전함에 따라 상기 특정 온도 영역 대보다 높은 온도를 가지는 폐열과, 상기 특정 온도 영역 대보다 낮은 온도를 가지는 폐열을 이용하지 못하므로 발전량을 높이는데 한계가 있다. That is, in the case of a thermoelectric power generator, waste heat having a temperature higher than the specific temperature region and a waste heat having a lower temperature than the specific temperature region are used due to the temperature difference between the high temperature side and the low temperature side, It is difficult to increase the power generation capacity.

국내 공개특허공보 제10-2012-0036113호, 2012.04.17.자 공개.Korean Patent Publication No. 10-2012-0036113, Apr. 17, 2012. Disclosure. 국내 등록특허공보 제10-1327735호, 2013.11.05.자 등록.Korean Registered Patent No. 10-1327735, November 31, 2013. 국내 등록특허공보 제10-1361044호, 2014.02.04.자 등록.Registered Patent Registration No. 10-1361044, Apr. 02, 2014.

본 발명은 상기한 문제점을 해소하기 위해 발명된 것으로서, 폐열배출부에서 배출되는 폐열 중에서 종래의 열전발전장치에서 사용되지 않고 버려지는 폐열을 최소화하여 열전발전함으로써 발전량을 증대시켜 열전발전효율을 높이는 복층 구조의 폐열 회수형 열전발전장치를 제공하는데 그 목적이 있다. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a thermoelectric power generation system, which minimizes the waste heat that is not used in the conventional thermoelectric generator among the waste heat discharged from the waste heat discharge unit, The present invention provides a waste heat recovery type thermoelectric generator having a structure of the present invention.

본 발명의 목적은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 또 다른 목적들은 아래의 기재로부터 명확하게 이해될 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.

상기 목적을 달성하기 위한 본 발명에 따른 복층 구조의 폐열 회수형 열전발전장치는, 폐열이 배출되는 폐열배출부의 외측에 설치되는 열전발전장치에 있어서, 복수 개로 분할 구성되어 상호 결합을 통해 내면이 상기 폐열배출부의 외면에 밀착되게 설치되고 외면에 복수 개의 평면이 구비되는 제1플레이트; 상기 제1플레이트의 평면에 각각 일면이 밀착되게 설치되어 제1온도영역에서 발전하는 제1열전발전소자; 상기 제1플레이트의 평면에 각각 상기 제1열전발전소자의 타면과 밀착되게 설치되고 외면에 제1냉각핀이 형성되는 제2플레이트; 상기 제2플레이트의 외면에 각각 일면이 밀착되게 설치되어 상기 제1온도영역보다 상대적으로 낮은 제2온도영역에서 발전하는 제2열전발전소자; 상기 제2플레이트의 외면에 각각 상기 제2열전발전소자의 타면과 밀착되게 설치되고 외면에 제2냉각핀이 형성되는 제3플레이트; 상기 제3플레이트에 설치되어 상기 제2열전발전소자의 타면을 냉각시키는 제1냉각파이프;를 포함하여 구성되는 것을 특징으로 한다. According to another aspect of the present invention, there is provided a thermoelectric generator including a waste heat recovery thermoelectric generator disposed at an outer side of a waste heat discharging unit to which waste heat is discharged, the thermoelectric generator being divided into a plurality of parts, A first plate installed in close contact with an outer surface of the waste heat discharging portion and having a plurality of planes on an outer surface thereof; A first thermoelectric generating element provided on one surface of the first plate so as to be in close contact with each other and generating electricity in a first temperature region; A second plate provided on the plane of the first plate so as to be in close contact with the other surface of the first thermoelectric power generator and having a first cooling fin formed on the outer surface thereof; A second thermoelectric generator disposed on the outer surface of the second plate so as to be in close contact with one another and generating electricity in a second temperature region relatively lower than the first temperature region; A third plate provided on the outer surface of the second plate so as to be in close contact with the other surface of the second thermoelectric power generator and having a second cooling fin formed on the outer surface thereof; And a first cooling pipe installed on the third plate and cooling the other surface of the second thermoelectric power generator.

상기한 구성에 의한 본 발명은 열전발전소자가 중온용 열전발전소자와 상온용 열전발전소자가 차례대로 적층된 형태로 구성됨에 따라 폐열배출부에서 배출되는 폐열을 최대한 많이 이용하여 열전발전에 사용함으로써 발전효율을 향상시켜 발전량을 크게 늘릴 수 있는 효과가 있다. Since the thermoelectric power generator for self-temperature thermoelectric generator and the thermoelectric generator for room temperature are stacked one after another in the present invention, the waste heat discharged from the waste heat discharger is utilized for the thermoelectric generator as much as possible, The power generation amount can be greatly increased.

도 1은 본 발명의 바람직한 실시예에 따른 복층 구조의 폐열 회수형 열전발전장치의 사시도.
도 2는 본 발명의 바람직한 실시예에 따른 복층 구조의 폐열 회수형 열전발전장치의 일측면도.
도 3은 본 발명의 바람직한 다른 실시예에 따른 복층 구조의 폐열 회수형 열전발전장치의 일측면도.1 is a perspective view of a waste heat recovery type thermoelectric generator having a multi-layer structure according to a preferred embodiment of the present invention.
2 is a side view of a waste heat recovery type thermoelectric generator of a multi-layer structure according to a preferred embodiment of the present invention.
3 is a side view of a waste heat recovery type thermoelectric generator having a multi-layer structure according to another preferred embodiment of the present invention.

본 발명에 따른 복층 구조의 폐열 회수형 열전발전장치는, 자동차의 배기관이나 보일러의 튜브나 전기로의 배관 등과 같이 폐열이 외부로 배출되는 폐열배출부의 외측에 설치되어 폐열에 의한 열전발전소자의 고온부 측과 저온부 측에 발생하는 온도 차이에 의해 발전하는 장치이다. The waste heat recovery type thermoelectric generator according to the present invention is provided on the outside of the waste heat discharging portion where the waste heat is discharged to the outside such as a tube of an automobile, a tube of a boiler or a pipe of an electric furnace, And is generated by the temperature difference generated on the low temperature side.

특히, 본 발명에 따른 복층 구조의 폐열 회수형 열전발전장치는, 열전발전소자에서 사용되지 않는 외부로 배출되는 폐열을 최소화하여 열전발전효율을 향상시킨 것이 큰 특징이다. Particularly, the waste heat recovery type thermoelectric generator of the multi-layer structure according to the present invention is characterized in that the waste heat discharged to the outside which is not used in the thermoelectric generator is minimized to improve the thermoelectric generation efficiency.

이러한 특징은, 폐열배출부의 외측에 제1플레이트가 설치되고 상기 제2플레이트의 외측에 제1온도영역에서 열전발전하는 제1열전발전소자가 설치되며 상기 제1열전발전소자의 외측에 제2플레이트가 설치되고 상기 제2플레이트의 외측에 제1온도영역보다 상대적으로 낮은 제2온도영역에서 열전발전하는 제2열전발전소자가 설치되며 상기 제2열전발전소자의 외측에 제3플레이트가 설치되는 구조에 의해 달성된다. In this case, a first plate is installed on the outside of the waste heat discharging portion, a first thermoelectric generator thermoelectricized in a first temperature region is installed outside the second plate, and a second plate is installed on the outside of the first thermoelectric generator And a second thermoelectric generator is installed outside the second plate in a second temperature range that is relatively lower than the first temperature range and a third plate is installed outside the second thermoelectric generator .

즉, 열전발전소자를 제1온도영역에서 열전발전하는 제1열전발전소자와 제2온도영역에서 열전발전하는 제2열전발전소자로 구성하여 폐열배출부에서 배출되는 상대적으로 온도가 높은 폐열을 이용하여 1차 발전하고 제1열전발전소자에서 배출되는 상대적으로 온도가 낮은 폐열을 이용하여 2차 발전하는 구조에 의한 것이다. That is, the thermoelectric generator is constituted by a first thermoelectric generator that thermally generates electricity in a first temperature range and a second thermoelectric generator that thermally generates electricity in a second temperature range, and uses the relatively high temperature waste heat discharged from the waste heat discharger to generate 1 And the second power generation is performed by using the relatively low-temperature waste heat discharged from the first thermoelectric generator.

따라서 열전발전 온도영역이 다른 두 개의 열전발전소자를 통해 폐열배출부에서 배출되는 폐열을 최대한 많이 이용하여 열전발전함에 따라 발전효율을 향상시킬 수 있다.
Therefore, the waste heat discharged from the waste heat discharging portion through the two thermoelectric power generating units having different thermoelectric generating temperature ranges is utilized as much as possible, so that the power generation efficiency can be improved according to the thermoelectric generating unit.

이하 본 발명의 바람직한 실시예들을 첨부한 도면을 참조하여 상세하게 설명하면 다음과 같다. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 바람직한 실시예에 따른 복층 구조의 폐열 회수형 열전발전장치의 사시도이고, 도 2는 본 발명의 바람직한 실시예에 따른 복층 구조의 폐열 회수형 열전발전장치의 일측면도이며, 도 3은 본 발명의 바람직한 다른 실시예에 따른 복층 구조의 폐열 회수형 열전발전장치의 일측면도이다.FIG. 1 is a perspective view of a waste heat recovery type thermoelectric generator having a multi-layer structure according to a preferred embodiment of the present invention, FIG. 2 is a side view of a waste heat recovery type thermoelectric generator having a multi-layer structure according to a preferred embodiment of the present invention, 3 is a side view of a waste heat recovery type thermoelectric generator of a multilayer structure according to another preferred embodiment of the present invention.

본 발명의 바람직한 실시예에 따른 복층 구조의 폐열 회수형 열전발전장치는, 도 1과 2에 도시된 바와 같이, 제1플레이트(100), 제1열전발전소자(200), 제2플레이트(300), 제2열전발전소자(500), 제3플레이트(600), 및 제1냉각파이프(800)를 포함하여 구성된다.
1 and 2, a waste heat recovery type thermoelectric generator having a multi-layer structure according to a preferred embodiment of the present invention includes a first plate 100, a first thermoelectric generator 200, a second plate 300 A second thermoelectric generator 500, a third plate 600, and a first cooling pipe 800.

먼저, 상기 제1플레이트(100)는 폐열배출부의 외측에 설치되어 폐열배출부에서 배출되는 폐열을 흡수하여 후술할 상기 제1열전발전소자(200)의 일면(고온부 측)으로 전달하는 구성이다. First, the first plate 100 is installed outside the waste heat discharging portion to absorb the waste heat discharged from the waste heat discharging portion and transfer the waste heat to one surface (high-temperature portion side) of the first thermoelectric generator 200 to be described later.

이를 위해 제1플레이트(100)는 내면이 폐열배출부의 외면에 밀착 설치되도록 복수 개로 분할 형성된 상태에서 상호 간의 결합을 통하여 폐열배출부의 외면과 대응되는 형상을 이루면서 외면에는 적어도 하나 이상의 평면이 구비되도록 구성된다. For this, the first plate 100 has a shape corresponding to the outer surface of the waste heat discharging portion through a mutual connection in a state where the inner surface is divided into a plurality of portions so as to be closely attached to the outer surface of the waste heat discharging portion, do.

즉, 도 1과 같이 폐열배출부가 원통관 형태인 경우에는 상호 결합에 따라 내면이 원형 형태로 이루어지고 외면에 복수 개의 평면이 구비되도록 구성되고, 도 3과 같이 폐열배출부가 사각관 형태인 경우에는 상호 결합에 따라 내면이 사각형 형태로 이루어지며 외면에 복수 개의 평면이 구비되도록 구성된다. That is, when the waste heat discharging part is a circular tube as shown in FIG. 1, the inner surface is formed in a circular shape according to mutual coupling, and the outer surface is provided with a plurality of planes. The inner surface is formed in a rectangular shape in accordance with mutual coupling and the outer surface is provided with a plurality of planes.

단, 제1플레이트(100)는 기존에 사용되고 있는 폐열배출부를 절단 등의 작업 없이 바로 적용 가능하도록 상호 결합된 상태에서 체결볼트(미도시)에 의해 체결 고정되어 폐열배출부의 외측에 견고하게 설치된다. However, the first plate 100 is fastened and fastened by fastening bolts (not shown) in a state of being coupled with each other so as to be immediately applicable without any operation such as cutting, and is installed firmly on the outside of the waste heat discharging portion .

한편, 제1플레이트(100)는 폐열배출부의 폐열이 제1열전발전소자(200)의 일면에 효율적으로 전달될 수 있도록 열전도도가 우수한 알루미늄 재질 등으로 구성된다.
The first plate 100 is made of an aluminum material or the like having excellent thermal conductivity so that the waste heat of the waste heat discharging portion can be efficiently transferred to one surface of the first thermoelectric device 200.

다음으로, 상기 제1열전발전소자(200)는 복수 개로 이루어져 제1플레이트(100)의 외면에 구비된 평면에 각각 설치되어 제1플레이트(100)와 접촉되는 일면(고온부 측)과 타면(저온부 측) 간의 온도 차이에 따라 전기에너지를 발생시키는 구성이다. Next, the first thermoelectric generators 200 are formed of a plurality of first thermoelectric generators 200. The first thermoelectric generators 200 are installed on the outer surface of the first plate 100, And the electric energy is generated in accordance with the temperature difference between the electrodes.

이를 위해 제1열전발전소자(200)는 상기 후술할 제2열전발전소자(500)에 비하여 동작온도가 상대적으로 높은 제1온도영역에서 열전발전하도록 구성된다. 이는 폐열배출부에서 배출되는 상대적으로 온도가 높은 1차 폐열을 이용하여 열전발전 효율을 높이기 위한 것이다. To this end, the first thermoelectric generator 200 is configured to thermally generate electricity in a first temperature region in which an operating temperature is relatively higher than that of the second thermoelectric generator 500 described later. This is to increase the efficiency of thermoelectric generation by using the primary heat of the relatively high temperature discharged from the waste heat discharging portion.

즉, 제1열전발전소자(200)를 상대적으로 높은 200~500℃의 제1온도영역에서 전기에너지를 발생시키는 중온용 열전발전소자로 구성하여 폐열배출부에서 1차적으로 배출되는 상대적으로 고온인 폐열을 이용하여 전기에너지를 발생시키게 된다. That is, the first thermoelectric generator 200 is configured as a thermoelectric generator for an intermediate temperature which generates electric energy in a first temperature range of relatively high temperature of 200 to 500 ° C, and a relatively high temperature waste heat To generate electric energy.

이때 열전발전소자는 고온부 측으로 전달되는 온도가 높을수록 그리고 고온부 측과 저온부 측 간의 온도 차이가 크면 클수록 발전효율이 높으므로 상대적으로 고온의 폐열을 이용하는 중온용 열전발전소자로 구성함으로써 발전효율을 높일 수 있다.
At this time, since the thermoelectric power generator has higher power generation efficiency as the temperature transmitted to the high temperature side is higher and the temperature difference between the higher temperature side and the lower temperature side is larger, the power generation efficiency can be improved by constructing the thermoelectric power plant for middle temperature using relatively high temperature waste heat.

다음으로, 상기 제2플레이트(300)는 제1열전발전소자(200)를 사이에 두고 제1플레이트(100)의 평면에 각각 제1열전발전소자(200)의 타면과 밀착되게 설치되어 제1열전발전소자(200)의 타면을 냉각시키면서 제1열전발전소자(200)의 타면에 잔존하는 2차 폐열을 흡수하여 후술할 상기 제2열전발전소자(500)의 일면으로 전달하는 구성이다. Next, the second plate 300 is installed on the other surface of the first thermoelectric element 200 so as to be in close contact with the other surface of the first thermoelectric element 200 through the first thermoelectric element 200, The secondary side heat of the first thermoelectric element 200 is absorbed while the other side of the thermoelectric element 200 is cooled and transferred to one surface of the second thermoelectric element 500 to be described later.

이를 위해 제2플레이트(300)는 제1플레이트(100)의 평면과 대응되는 내면을 가지도록 구성된다. 그리고 제2플레이트(300)는 상기 2차 폐열을 효율적으로 흡수하여 제2열전발전소자(500)의 일면으로 전달하거나 외부로 방출할 수 있도록 열전도도가 우수한 알루미늄 재질 등으로 구성된다. To this end, the second plate 300 is configured to have an inner surface corresponding to the plane of the first plate 100. The second plate 300 is made of an aluminum material or the like that has excellent thermal conductivity to efficiently absorb the secondary waste heat and transfer it to one surface of the second thermoelectric device 500 or to discharge the second waste heat to the outside.

또한, 제2플레이트(300)의 외면에는 제1냉각핀(400)이 더 구비된다. 상기 제1냉각핀(400)은 제2플레이트(300)의 외면에 일정간격으로 형성되어 공기와의 접촉면적을 확대시켜 제1열전발전소자(200)의 타면을 더욱 효과적으로 냉각시키게 된다.
In addition, a first cooling fin 400 is further provided on an outer surface of the second plate 300. The first cooling fin 400 is formed on the outer surface of the second plate 300 at a predetermined interval to enlarge a contact area with the air to cool the other surface of the first thermoelectric generator 200 more effectively.

다음으로, 상기 제2열전발전소자(500)는 복수 개로 이루어져 제2플레이트(300)의 외면에 각각 설치되어 제2플레이트(300)와 접촉되는 일면(고온부 측)과 타면(저온부 측) 간의 온도 차이에 따라 전기에너지를 발생시키는 구성이다. The second thermoelectric elements 500 are formed on the outer surface of the second plate 300 to have a temperature difference between one surface (high temperature side) and the other surface (low temperature side) And the electric energy is generated according to the difference.

이때 제2열전발전소자(500)는 상기 제1열전발전소자(200)에 비하여 동작온도가 상대적으로 낮은 제2온도영역에서 열전발전하도록 구성된다. 이는 제2플레이트(300)를 통해 제1열전발전소자(200)의 타면으로부터 전달되는 상대적으로 온도가 낮은 2차 폐열을 이용하여 열전발전하게 된다.At this time, the second thermoelectric generator 500 is configured to thermally generate electricity in a second temperature region where the operating temperature is relatively lower than that of the first thermoelectric generator 200. This results in thermoelectric power generation using secondary waste heat of relatively low temperature, which is transmitted from the other surface of the first thermoelectric element 200 through the second plate 300.

즉, 제2열전발전소자(500)를 상온~200℃의 제2온도영역에서 전기에너지를 발생시키는 상온용 열전발전소자로 구성하여 제1열전발전소자(200)의 타면에서 2차적으로 배출되는 상대적으로 저온인 폐열을 이용하여 전기에너지를 발생시키게 된다. That is, the second thermoelectric element 500 may be constituted by a thermoelectric element for room temperature which generates electric energy in a second temperature range from room temperature to 200 ° C, and is relatively discharged from the other surface of the first thermoelectric element 200 The electric energy is generated using the waste heat of low temperature.

이에 따라 제1열전발전소자(200)의 타면에 잔존하는 제2온도영역의 폐열까지도 낭비하지 않고 전달받아 열전발전에 이용함에 따라 발전효율이 향상되어 발전량을 증대시키게 된다.
Accordingly, even the waste heat of the second temperature region remaining on the other surface of the first thermoelectric generator 200 is transferred without waste, and is utilized for the thermoelectric power generation, so that the power generation efficiency is improved and the power generation amount is increased.

다음으로, 상기 제3플레이트(600)는 제2열전발전소자(500)를 사이에 두고 제2플레이트(300)의 외면에 각각 제2열전발전소자(500)의 타면과 밀착되게 설치되어 제2열전발전소자(500)의 타면을 냉각시키는 구성이다. The third plate 600 is installed on the outer surface of the second plate 300 in close contact with the other surface of the second thermoelectric element 500 through the second thermoelectric generator 500, And the other surface of the thermoelectric generator element 500 is cooled.

이를 위해 제3플레이트(600)는 제2플레이트(300)의 외면과 대응되는 내면을 가지도록 구성된다. 그리고 제3플레이트(600)는 제2열전발전소자(500)를 효율적으로 냉각시킬 수 있도록 열전도도가 우수한 알루미늄 재질 등으로 구성된다. To this end, the third plate 600 is configured to have an inner surface corresponding to the outer surface of the second plate 300. The third plate 600 is made of an aluminum material or the like having excellent thermal conductivity to efficiently cool the second thermoelectric element 500.

또한, 제3플레이트(600)의 외면에는 제2냉각핀(700)이 더 구비된다. 상기 제2냉각핀(700)은 제3플레이트(600)의 외면에 일정간격으로 형성되어 공기와의 접촉면적을 확대시켜 제2열전발전소자(500)의 타면을 효과적으로 냉각시키게 된다.
Further, a second cooling fin 700 is further provided on the outer surface of the third plate 600. The second cooling fin 700 is formed on the outer surface of the third plate 600 at a predetermined interval to enlarge a contact area with the air, thereby effectively cooling the other surface of the second thermoelectric device 500.

마지막으로, 상기 제1냉각파이프(800)는 제3플레이트(600)에 길이방향으로 관통 설치되어 제3플레이트(600)의 냉각기능을 높여 제2열전발전소자(500)의 타면을 더욱 효과적으로 냉각시키는 구성이다. Finally, the first cooling pipe 800 is installed in the third plate 600 in the longitudinal direction to increase the cooling function of the third plate 600 to cool the other surface of the second thermoelectric generator 500 more effectively .

이를 위해 제1냉각파이프(800)는 제3플레이트(600)에 길이방향으로 관통 형성된 제1파이프삽입홀(810)의 내측에 삽입 설치된 상태에서 제1파이프삽입홀(810)을 따라 지그재그 형태를 이루도록 연결어 그 일단과 타단을 통해 외부의 냉각유체가 내부로 순환 공급된다. For this, the first cooling pipe 800 is formed in a zigzag form along the first pipe insertion hole 810 while being inserted into the first pipe insertion hole 810 formed in the third plate 600 in the longitudinal direction And the external cooling fluid is circulated and supplied through the one end and the other end of the connection.

즉, 외부에서 냉각된 냉각유체가 제1냉각파이프(800)의 일단을 통해 내부로 유입된 후 내부를 따라 유동하면서 제3플레이트(600)를 냉각시킨 다음 타단을 통해 외부로 배출되는 과정을 반복하게 된다.
That is, the cooling fluid externally cooled flows into the first cooling pipe 800 through one end thereof, then flows along the inside thereof, cooling the third plate 600, and then discharging the cooling fluid to the outside through the other end .

한편, 제2플레이트(300)에도 상기 제3플레이트(600)와 같이 제1열전발전소자(200)의 타면을 효과적으로 냉각시킬 수 있도록 상기 제1냉각파이프(800)와 대응되는 제2냉각파이프(미도시)가 더 설치될 수 있다. The second plate 300 is also connected to the second cooling pipe 800 corresponding to the first cooling pipe 800 so as to effectively cool the other surface of the first thermoelectric device 200, Not shown) can be installed.

이를 위해 상기 제2냉각파이프도 제2플레이트(300)에 길이방향으로 관통 형성된 제2파이프삽입홀(미도시)의 내측에 삽입 설치된 상태에서 지그재그 형태를 이루도록 연결되어 그 일단과 타단을 통해 외부의 냉각유체가 내부로 순환 공급되면서 제2플레이트(300)를 냉각하게 된다.
For this, the second cooling pipe is connected to the second plate 300 in a zigzag form in a state of being inserted into a second pipe insertion hole (not shown) formed in the longitudinal direction through the second plate 300, And the second plate 300 is cooled while the cooling fluid is circulated and supplied to the inside.

여기서 본 발명에 따른 복층 구조의 폐열 회수형 열전발전장치는 도시하지 않았지만 폐열배출부의 길이에 따라 복수 개로 구성하여 폐열배출부의 외측에 다단 형태로 연결 설치되는 것도 가능하다. Although not shown, the multi-layered waste heat recovery type thermoelectric generator according to the present invention may have a plurality of units according to the length of the waste heat discharging unit and may be connected to the outside of the waste heat discharging unit in a multistage manner.

즉, 폐열배출부의 길이에 대응되도록 복수 개의 열전발전장치를 폐열배출부의 길이방향을 따라 다단으로 연결 배치하여 구성할 수 있다. 이에 따라 폐열배출부에서 배출되는 폐열을 낭비하지 않고 열전발전에 이용함으로써 발전효율을 향상시킬 수 있다.
That is, the plurality of thermoelectric generators may be connected and arranged in multiple stages along the longitudinal direction of the waste heat discharging unit so as to correspond to the length of the waste heat discharging unit. Accordingly, the waste heat discharged from the waste heat discharging portion can be used for the thermoelectric power generation without waste, thereby improving the power generation efficiency.

이상과 같이 본 발명에 따른 복층 구조의 폐열 회수형 열전발전장치는 중온용 열전발전소자와 상온용 열전발전소자를 통해 동시에 열전발전함에 따라 폐열배출부에서 배출되는 폐열을 최대한 많이 이용할 수 있으므로 발전효율을 크게 향상시킬 수 있다. As described above, since the waste heat recovery type thermoelectric generator according to the present invention can utilize the waste heat discharged from the waste heat discharging part as much as possible through the thermoelectric generator at the middle temperature thermoelectric generator and the room temperature thermoelectric generator at the same time, Can greatly improve.

상기한 실시예는 예시적인 것에 불과한 것으로, 당해 기술분야에 대한 통상의 지식을 가진 자라면 이로부터 다양하게 변형된 다른 실시예가 가능하다. The above-described embodiments are merely illustrative, and various modifications may be made by those skilled in the art without departing from the scope of the present invention.

따라서 본 발명의 진정한 기술적 보호범위에는 하기의 특허청구범위에 기재된 발명의 기술적 사상에 의해 상기의 실시예뿐만 아니라 다양하게 변형된 다른 실시예가 포함되어야 한다. Therefore, the true technical protection scope of the present invention should include not only the above embodiments but also various other modified embodiments according to the technical idea of the invention described in the following claims.

100: 제1플레이트
200: 제1열전발전소자
300: 제2플레이트
400: 제1냉각핀
500: 제2열전발전소자
600: 제3플레이트
700: 제2냉각핀
800: 제1냉각파이프
810: 제1파이프삽입홀100: first plate
200: first thermoelectric element
300: second plate
400: first cooling pin
500: second thermoelectric element
600: third plate
700: second cooling pin
800: first cooling pipe
810: first pipe insertion hole

Claims (7)

폐열이 배출되는 폐열배출부의 외측에 설치되는 열전발전장치에 있어서,
복수 개로 분할 구성되어 상호 결합을 통해 내면이 상기 폐열배출부의 외면에 밀착되게 설치되고 외면에 복수 개의 평면이 구비되는 제1플레이트(100);
상기 제1플레이트(100)의 평면에 각각 일면이 밀착되게 설치되어 제1온도영역에서 발전하는 제1열전발전소자(200);
상기 제1플레이트(100)의 평면에 각각 상기 제1열전발전소자(200)의 타면과 밀착되게 설치되고 외면에 제1냉각핀(400)이 형성되는 제2플레이트(300);
상기 제2플레이트(300)의 외면에 각각 일면이 밀착되게 설치되어 상기 제1온도영역보다 상대적으로 낮은 제2온도영역에서 발전하는 제2열전발전소자(500);
상기 제2플레이트(300)의 외면에 각각 상기 제2열전발전소자(500)의 타면과 밀착되게 설치되고 외면에 제2냉각핀(700)이 형성되는 제3플레이트(600);
상기 제3플레이트(600)에 설치되어 상기 제2열전발전소자(500)의 타면을 냉각시키는 제1냉각파이프(800);를 포함하여 구성되는 것을 특징으로 하는 복층 구조의 폐열 회수형 열전발전장치. A thermoelectric generator installed at the outside of a waste heat discharging portion where waste heat is discharged,
A first plate (100) divided into a plurality of parts, the first plate (100) having an inner surface closely attached to an outer surface of the waste heat discharging part through mutual coupling and having a plurality of planes on an outer surface thereof;
A first thermoelectric generator (200) installed on one surface of the first plate (100) in close contact with each other to generate electricity in a first temperature range;
A second plate 300 installed on the surface of the first plate 100 in close contact with the other surface of the first thermoelectric device 200 and having a first cooling fin 400 formed on the outer surface thereof;
A second thermoelectric generator (500) installed on the outer surface of the second plate (300) so as to be in close contact with one another and generating electricity in a second temperature region relatively lower than the first temperature region;
A third plate 600 disposed on the outer surface of the second plate 300 in close contact with the other surface of the second thermoelectric device 500 and having a second cooling fin 700 formed on the outer surface thereof;
And a first cooling pipe (800) installed on the third plate (600) for cooling the other surface of the second thermoelectric device (500). The thermoelectric generator . 제1항에 있어서,
상기 제1열전발전소자(200)는,
200~500℃ 영역에서 전기에너지를 발생시키는 중온용 열전발전소자로 구성되고,
상기 제2열전발전소자(500)는,
상온~200℃ 영역에서 전기에너지를 발생시키는 상온용 열전발전소자로 구성되는 것을 특징으로 하는 복층 구조의 폐열 회수형 열전발전장치. The method according to claim 1,
The first thermoelectric element 200 is a thermoelectric element,
Temperature thermoelectric generator for generating electric energy in the range of 200 to 500 ° C,
The second thermoelectric element 500 may be formed of,
Wherein the thermoelectric generator is composed of a thermoelectric generator for room temperature that generates electric energy in a range of room temperature to 200 ° C. 제1항에 있어서,
상기 제1플레이트(100)와 상기 제2플레이트(300) 및 상기 제3플레이트(600)는,
알루미늄 재질로 구성되는 것을 특징으로 하는 복층 구조의 폐열 회수형 열전발전장치.The method according to claim 1,
The first plate (100), the second plate (300), and the third plate (600)
Wherein the heat recovery type thermoelectric generator is composed of an aluminum material. 제1항에 있어서,
상기 제1냉각파이프(800)는,
상기 제3플레이트(600)에 길이방향으로 관통 형성된 제1파이프삽입홀(810)의 내측에 삽입된 상태에서 지그재그 형태를 이루도록 연속적으로 연결되어 일단과 타단을 통해 내부로 순환 공급되는 냉각유체에 의해 상기 제2열전발전소자(500)의 타면을 냉각시키는 것을 특징으로 하는 복층 구조의 폐열 회수형 열전발전장치.The method according to claim 1,
The first cooling pipe (800)
The first pipe insertion hole 810 is inserted into the third plate 600 in the longitudinal direction. The first pipe insertion hole 810 is continuously connected to the third plate 600 so as to form a zigzag shape. The cooling fluid is circulated through one end and the other end And cooling the other surface of the second thermoelectric generator (500). 제1항에 있어서,
상기 제2플레이트(300)에 설치되어 상기 제1열전발전소자(200)의 타면을 냉각시키는 제2냉각파이프(미도시);를 더 포함하여 구성되는 것을 특징으로 하는 복층 구조의 폐열 회수형 열전발전장치.The method according to claim 1,
And a second cooling pipe (not shown) installed on the second plate 300 for cooling the other surface of the first thermoelectric device 200. The multi- Generator. 제5항에 있어서,
상기 제2냉각파이프는,
상기 제2플레이트(300)에 길이방향으로 관통 형성된 제2파이프삽입홀(미도시)의 내측에 삽입된 상태에서 지그재그 형태를 이루도록 연속적으로 연결되어 일단과 타단을 통해 내부로 순환 공급되는 냉각유체에 의해 상기 제1열전발전소자(200)의 타면을 냉각시키는 것을 특징으로 하는 복층 구조의 폐열 회수형 열전발전장치.6. The method of claim 5,
Wherein the second cooling pipe comprises:
(Not shown) formed in a second pipe insertion hole (not shown) formed in the second plate 300 in the longitudinal direction, and are connected to each other in a zigzag shape, and are circulated and supplied to the inside through one end and the other end And the other surface of the first thermoelectric element (200) is cooled by the second thermoelectric element (200). 제1항에 있어서,
상기 열전발전장치는,
상기 폐열배출부의 길이에 대응되도록 복수 개로 구성되어 상기 폐열배출부의 외측에 다단 형태로 설치되는 것을 특징으로 하는 복층 구조의 폐열 회수형 열전발전장치. The method according to claim 1,
The thermoelectric generator includes:
And a plurality of heat exchangers are provided in a plurality of stages corresponding to the lengths of the waste heat discharging units and installed in a multi-stage structure on the outside of the waste heat discharging units.
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