KR101667212B1 - Recovery device of waste heat - Google Patents

Recovery device of waste heat Download PDF

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KR101667212B1
KR101667212B1 KR1020140134296A KR20140134296A KR101667212B1 KR 101667212 B1 KR101667212 B1 KR 101667212B1 KR 1020140134296 A KR1020140134296 A KR 1020140134296A KR 20140134296 A KR20140134296 A KR 20140134296A KR 101667212 B1 KR101667212 B1 KR 101667212B1
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South Korea
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waste heat
unit
superheating
preheating
hot water
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KR1020140134296A
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Korean (ko)
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KR20160041131A (en
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이근식
김천중
국승룡
권영순
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울산대학교 산학협력단
(주)보은
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Priority to KR1020140134296A priority Critical patent/KR101667212B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/10—Arrangements for using waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/10—Arrangements for using waste heat
    • F27D17/15—Arrangements for using waste heat using boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/20—Arrangements for treatment or cleaning of waste gases
    • F27D17/22—Arrangements for treatment or cleaning of waste gases for removing solid constituents
    • F27D17/25—Arrangements for treatment or cleaning of waste gases for removing solid constituents using cyclones
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

본 발명에 따른 폐열회수장치는, 외부에서 공급받은 냉수를 열원에서 배출되는 폐열로 가열하여 온수를 생성하는 온수부; 상기 온수부로부터 공급받은 온수를 폐열로 예열하는 예열부; 상기 예열부에서 예열된 수분 및 증기를 과열시키는 과열부; 및 상기 열원과 과열부의 사이에 설치되어 폐열을 수집하는 폐열수집부를 포함한다. 이러한 본 발명에 따른 폐열회수장치에 의하면, 폐열회수장치 내에서 체류하는 폐열의 이동방향을 제어함으로써, 폐열회수장치 내부에서 폐열이 체류하는 시간이 길어지도록 구성하여, 폐열의 손실을 최소화 할 수 있다. 또한 과열부의 하부에 파라볼라(Parabola) 형상의 폐열수집부를 설치함으로써, 과열부의 주변으로 폐열의 복사 및 대류 현상이 발생하도록 하여, 과열부의 열교환 성능을 향상시킬 수 있다.A waste heat recovering apparatus according to the present invention includes a hot water unit for generating hot water by heating cold water supplied from outside with waste heat discharged from a heat source; A preheating unit for preheating the hot water supplied from the hot water unit to waste heat; A superheating unit for superheating the preheated water and steam in the preheating unit; And a waste heat collecting unit installed between the heat source and the superheating unit to collect waste heat. According to the waste heat recovering apparatus of the present invention, by controlling the moving direction of the waste heat retained in the waste heat recovering apparatus, the waste heat recovery time in the waste heat recovering apparatus is made longer so that the loss of waste heat can be minimized . Further, by providing a parabola-shaped waste heat collecting section in the lower part of the superheating section, radiation and convection of the waste heat occur around the superheating section, thereby improving the heat exchange performance of the superheating section.

Description

폐열회수장치{Recovery device of waste heat}[0001] Recovery device of waste heat [0002]

본 발명은 폐열회수장치에 관한 것으로서, 더욱 상세하게는 폐열을 이용하여 유체를 가열시켜 폐열을 회수하는 폐열회수장치에 관한 것이다.The present invention relates to a waste heat recovery apparatus, and more particularly, to a waste heat recovery apparatus for recovering waste heat by heating a fluid using waste heat.

폐열이란 열 발생 및 사용설비에서 이용되지 못하고 버려지는 에너지로써, 각종 산업공정에서 종류와 형태가 다양하다.Waste heat is energy that can not be used in heat generation and facilities, and it is abandoned energy.

특히, 철강 산업은 고온을 필요로 하는 공정이 많아 다량의 에너지를 사용하기 때문에 그만큼 폐열도 많이 발생하므로 폐열회수를 통해 에너지 이용 효율을 개선함으로써 에너지 소비를 줄이는 대책이 필수적이다.In particular, the steel industry uses a large amount of energy due to the high number of processes requiring high temperature, and therefore, a lot of waste heat is generated. Therefore, measures to reduce energy consumption by improving the energy utilization efficiency through recovering waste heat are essential.

상기한 이유로 제철에서 발생하는 대량의 폐열을 이용한 다양한 폐열회수장치가 개발되고 있으며, 그 중 하나로 제조된 철재를 공냉할 때 방출되는 폐열을 이용해 수분 및 증기를 얻는 폐열회수장치가 제안되고 있다. For this reason, various waste heat recovery apparatuses using a large amount of waste heat generated in steel making have been developed. One of them has been proposed a waste heat recovery apparatus for obtaining water and steam using waste heat released when air is cooled.

위와 같은 폐열회수장치에 관한 기술로서 대한민국 등록실용신안 제 20-0338231호(2004.01.14)가 개시되어 있다. 여기에서는 보일러본체 내부에 과열기와 1차증발기, 2차증발기, 고압절탄기, 저압절탄기를 차례로 적층 설치하여 각각의 배관을 본체 외부로 연결하여 소결공장의 쿨러에서 발생된 약 350~400℃의 고온 공기를 덕트를 통해서 보일러 내부로 통과시켜 스팀과 온수를 생산하는 소결공장용 폐열회수장치를 제공하고 있다.As a technology relating to the waste heat recovering device as described above, Korean Utility Model Registration Utility Model No. 20-0338231 (Jan. 14, 2004) is disclosed. Here, a superheater, a primary evaporator, a secondary evaporator, a high-pressure vacuum cleaner, and a low-pressure cutter are sequentially stacked in the boiler body, and each pipe is connected to the outside of the main body. And the air is passed through a duct to the inside of the boiler to produce steam and hot water.

하지만 종래와 같은 소결공장용 폐열회수장치는 내부를 통과하는 폐열이 층류로 흐르기 때문에, 장치 내에 폐열이 충분히 수용되지 못하고 그대로 방출되므로 폐열의 열손실이 발생한다. However, in the conventional waste heat recovery apparatus for a sinter plant, since the waste heat passing through the inside flows into the laminar flow, waste heat is not sufficiently received in the apparatus, and the waste heat is directly discharged.

또한, 비교적 다량의 열을 필요로 하는 과열부에 폐열이 집중되지 못하여, 과열부에서 과열증기를 생성하는 데 있어서 성능이 떨어지는 문제점이 있다. Further, since the waste heat is not concentrated in the superheating portion requiring a relatively large amount of heat, there is a problem in that performance is deteriorated in generating superheated steam in the superheating portion.

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 창출된 것으로, 내부의 수용된 폐열의 흐름을 최적화 시키고, 폐열이 과열부에 원활하게 공급될 수 있도록 구조를 개선시킴으로써, 열교환 성능을 향상시킨 폐열회수장치를 제공하는 것에 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a waste heat recovery apparatus and a waste heat recovery apparatus which improve the heat exchange performance by optimizing the flow of waste heat received therein, And the like.

상기한 바와 같은 목적을 달성하기 위한 본 발명의 폐열회수장치는, 외부에서 공급받은 냉수를 열원에서 배출되는 폐열로 가열하여 온수를 생성하는 온수부; 상기 온수부로부터 공급받은 온수를 폐열로 예열하는 예열부; 상기 예열부에서 예열된 수분 및 증기를 과열시키는 과열부; 및 상기 열원과 과열부의 사이에 설치되어 폐열을 수집하는 폐열수집부를 포함한다.According to an aspect of the present invention, there is provided a waste heat recovery apparatus comprising: a hot water unit for generating hot water by heating cold water supplied from outside to waste heat discharged from a heat source; A preheating unit for preheating the hot water supplied from the hot water unit to waste heat; A superheating unit for superheating the preheated water and steam in the preheating unit; And a waste heat collecting unit installed between the heat source and the superheating unit to collect waste heat.

여기서 상기 폐열수집부는 파라볼라(Parabola) 형상으로서, 볼록면이 열원과 대향하고, 오목면이 과열부와 대향하도록 배치되는 것이 바람직하다.Preferably, the waste heat collecting portion is of a parabola shape, the convex surface facing the heat source, and the concave surface facing the superheating portion.

또한 상기 예열부는 하부로 갈수록 폭이 넓어지는 스커트(Skirt) 형상의 하우징과, 상기 하우징의 내측에 수용되며, 나선으로 복수회 선회되어 돔(Dome) 형상을 갖는 예열관과, 복수회 선회된 상기 예열관을 상하 방향으로 지지 고정시키는 것으로서, 원주 방향을 따라 배치되는 복수개의 지지체를 포함할 수 있다.The preheating unit may include a skirt-shaped housing having a wider width toward the lower part, a preheating tube accommodated in the housing and having a dome shape rotated a plurality of times by a spiral, And may include a plurality of supports disposed along the circumferential direction for supporting and fixing the preheating tube in the vertical direction.

또한 상기 과열부는, 상기 예열부로부터 공급받은 수분 및 증기를 폐열로 과열하는 제1과열부와, 상기 제1과열부의 하부에 상기 제1과열부와 연통하도록 연결 설치되어, 상기 제1과열부로부터 공급받은 과열증기를 폐열의 내측 공간에 설치되는 것이 바람직하다.The superheating unit may include a first superheating unit for superheating the moisture and steam supplied from the preheating unit to waste heat, a second superheating unit connected to the lower portion of the first superheating unit so as to communicate with the first superheating unit, It is preferable that the superheated steam supplied is installed in the inner space of the waste heat.

또한 상기 폐열회수장치는 상기 예열부의 상부에 상기 예열부로부터 공급받은 수분 및 증기를 회전 원심력에 의해 수분제거를 유도하는 도넛(Doughnut) 형상의 탈수부를 더 포함할 수 있다.The waste heat recovering device may further include a donut-shaped dehydrating unit for guiding the moisture and steam supplied from the preheating unit to the upper portion of the preheating unit by removing the water by rotating centrifugal force.

본 발명에 따른 폐열회수장치에 의하면, 다음과 같은 효과를 얻을 수 있다.According to the waste heat recovering apparatus of the present invention, the following effects can be obtained.

첫째, 폐열회수장치 내에서 체류하는 폐열의 이동방향을 제어함으로써, 폐열회수장치 내부에서 폐열이 체류하는 시간이 길어지도록 구성하여, 폐열의 손실을 최소화 할 수 있다.First, by controlling the moving direction of the waste heat in the waste heat recovery apparatus, the waste heat can be restrained in the waste heat recovery apparatus for a longer time, thereby minimizing waste heat loss.

둘째, 과열부의 하부에 파라볼라(Parabola) 형상의 폐열수집부를 설치함으로써, 과열부의 주변으로 폐열의 복사 및 대류 현상이 발생하도록 하여, 과열부의 열교환 성능을 향상시킬 수 있다.Secondly, by providing a parabola-shaped waste heat collecting section in the lower part of the superheating section, the heat exchange performance of the superheating section can be improved by causing radiation and convection of waste heat to the periphery of the superheating section.

도 1은 본 발명의 실시예에 따른 폐열회수장치의 사시도,
도 2는 도 1에 나타낸 폐열회수장치의 내부 구조를 도시한 부분 사시도,
도 3은 도 1에 나타낸 폐열회수장치의 제2과열부와 폐열수집부 주변의 열 흐름 상태를 도시한 정 단면도이다.1 is a perspective view of a waste heat recovery apparatus according to an embodiment of the present invention,
FIG. 2 is a partial perspective view showing the internal structure of the waste heat recovery apparatus shown in FIG. 1,
3 is a front sectional view showing a heat flow state around the second superheating section and the waste heat collecting section of the waste heat recovering apparatus shown in FIG.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

따라서 본 명세서에 기재된 실시 예와 도면에 도시된 구성은 본 발명의 가장 바람직한 실시예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들은 대체할 수 있는 균등한 변형 예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, at the time of the present application, It should be understood that variations can be made.

이하, 본 발명의 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 실시예에 따른 폐열회수장치의 사시도이고, 도 2는 도 1에 나타낸 폐열회수장치의 내부 구조를 도시한 부분 사시도이며, 도 3은 도 1에 나타낸 폐열회수장치의 제2과열부와 폐열수집부 주변의 열 흐름 상태를 도시한 정 단면도이다.FIG. 1 is a perspective view of a waste heat recovery apparatus according to an embodiment of the present invention, FIG. 2 is a partial perspective view showing the internal structure of the waste heat recovery apparatus shown in FIG. 1, Sectional view showing a state of heat flow around the superheating part and the waste heat collecting part.

도 1 및 도 2를 참조하면, 본 발명의 실시예에 따른 폐열회수장치(10)는 방출되는 장치 내의 폐열의 흐름을 최적화 시키고, 폐열이 과열부에 원활하게 공급될 수 있도록 구조를 개선시킨 것이다. 이를 위해 상기 폐열회수장치는, 온수부(100), 예열부(200), 과열부(300) 및 폐열수집부(400)를 구비한다. 여기서 상기 폐열로는, 예를 들면 제철과정에서 발생하는 대량의 폐열을 사용할 수 있으나, 이에 한정되는 것은 아니다.1 and 2, the waste heat recovery apparatus 10 according to the embodiment of the present invention improves the structure so as to optimize the flow of waste heat in the discharged apparatus and to supply the waste heat to the overheated portion smoothly . To this end, the waste heat recovery apparatus includes a hot water unit 100, a preheating unit 200, a superheating unit 300, and a waste heat collecting unit 400. As the waste heat, for example, a large amount of waste heat generated in a steel making process may be used, but is not limited thereto.

상기 온수부(100)는 외부에서 인입된 냉수를 폐열을 이용하여 가열시키는 것으로, 도 1에 도시한 바와 같이, 내측으로 폐열을 수용하는 상부하우징(110)과, 상기 상부하우징(110)의 내부에 설치되어 냉수를 이동할 수 있도록 구성한 온수관(120)을 포함하고, 상기 온수관(120)을 통해 유입된 냉수는, 상기 상부하우징(110)의 내부에 수용되어 주위를 유동하는 폐열에 의해 가열되도록 구성하는 것이 바람직하다. As shown in FIG. 1, the hot water unit 100 heats cold water drawn from the outside using waste heat. The hot water unit 100 includes an upper housing 110 for receiving waste heat inward, And the cold water introduced through the hot water pipe 120 is heated by the waste heat received in the inside of the upper housing 110 and flowing around the hot water pipe 120, .

이어서, 상기 예열부(200)는 상기 온수부(100)에서 가열된 유체를 공급받아 폐열로 가열시키는 것으로, 상기 온수부(100)의 하부에 위치하는 것이 바람직하다. 더욱 자세하게는, 상기 예열부(200)는, 하부로 갈수록 폭이 넓어지는 스커트(Skirt) 형상의 하우징(210)과, 상기 하우징(210)의 내측에 수용되며, 나선으로 복수회 선회되어 돔(Dome) 형상을 갖는 예열관(220)과, 복수회 선회된 상기 예열관(220)을 상하 방향으로 지지 고정시키는 것으로서, 원주 방향을 따라 배치되는 복수개의 지지체(230)를 포함하는 것이 바람직하다. The preheating unit 200 receives the fluid heated by the hot water unit 100 and heats it with waste heat. The preheating unit 200 is preferably located below the hot water unit 100. More specifically, the preheating unit 200 includes a housing 210 having a skirt-like shape having a wider width toward the lower portion, a housing 210 housed inside the housing 210, And a plurality of supports 230 arranged in the circumferential direction to vertically support and support the preheating tube 220 having a plurality of turns in a circumferential direction.

그리고 상기 과열부(300)는, 상기 예열부(200)로부터 공급받은 수분 및 증기를 폐열로 과열하는 제1과열부(310)와, 상기 제1과열부(310)의 하부에 상기 제1과열부(310)와 연통하도록 연결 설치되어, 상기 제1과열부(310)로부터 공급받은 과열증기를 폐열로 재과열시키는 제2과열부(320)를 포함할 수 있다. 이때 상기 제2과열부(320)는 상기 예열관(220)의 내측 공간에 설치되는 것이 바람직하다. The superheating unit 300 includes a first superheating unit 310 for superheating the moisture and steam supplied from the preheater 200 to waste heat and a second superheating unit 310 disposed below the first superheating unit 310. [ And a second superheating unit 320 connected to the first superheating unit 310 to heat the superheated steam supplied from the first superheating unit 310 to waste heat. At this time, the second superheating unit 320 may be installed in the inner space of the preheating tube 220.

상기 폐열수집부(400)는 과열부의 하부에 설치되며, 파라볼라(Parabola) 형상으로서, 볼록면(400a)이 열원(20)과 대향하고, 오목면(400b)이 과열부(300)와 대향하도록 배치된다. 도 3를 참조하면, 열원(20)으로부터 방출된 폐열이 상기 볼록면(400a)에 도달하여, 상기 볼록면(400a)을 타고 가장자리(400c)로 이동한다. 이러한 폐열은 상기 가장자리(400c)에서 일부는 상향으로 이동하고, 일부는 굴곡하여 상기 오목면(400b)이 형성하는 오목한 공간 내로 수용되어 와류를 형성한다. 상기 수용된 폐열은 오목면의 상측에서 와류에 의한 운동을 하며, 이에 따른 대류작용으로 과열부에 열을 전달한다.The waste heat collecting part 400 is installed in the lower part of the superheating part and has a parabola shape so that the convex surface 400a faces the heat source 20 and the concave surface 400b faces the superheating part 300 . Referring to FIG. 3, the waste heat emitted from the heat source 20 reaches the convex surface 400a, and the convex surface 400a travels to the edge 400c. The waste heat moves partly upwardly from the edge 400c and partly bends to be received in the concave space formed by the concave surface 400b to form a vortex. The received waste heat moves by the vortex above the concave surface and conveys heat to the superheating part by the convection action.

또한 폐열회수장치(10)는 상기 예열부(200)로부터 수분 및 증기를 공급받아,수분을 제거시킨 후, 과열부(300)에 증기를 공급하는 탈수부(500)를 더 포함 할 수 있다. 상기 탈수부(500)는 상기 예열부(200)의 상부에 위치하는 것이 바람직하며, 도넛(Doughnut)형상으로 형성되어 상기 예열부(200)로부터 공급받은 증기에 포함된 수분을 회전 원심력에 의해 제거하는 것이 바람직하다.The waste heat recovery apparatus 10 may further include a dehydrating unit 500 for receiving moisture and steam from the preheating unit 200 and removing moisture and then supplying steam to the superheating unit 300. The dewatering unit 500 is preferably disposed on the upper part of the preheater 200 and is formed in a donut shape to remove moisture contained in the steam supplied from the preheater 200 by rotating centrifugal force .

상기한 바와 같은 본 발명에 따른 폐열회수장치(10)에 의하면, 폐열회수장치(10) 내에서 체류하는 폐열의 이동방향을 제어함으로써, 폐열회수장치(10) 내부에서 폐열이 체류하는 시간이 길어지도록 구성하여, 폐열의 손실을 막을 수 있다. 또한 과열부의 하부에 파라볼라(Parabola) 형상의 폐열수집부(400)를 설치함으로써, 과열부(300)의 주변으로 폐열의 복사 및 대류 현상이 발생하도록 하여, 과열부(300)의 열교환 성능을 향상시킬 수 있다.According to the waste heat recovery apparatus 10 of the present invention as described above, by controlling the moving direction of the waste heat staying in the waste heat recovery apparatus 10, the time for the waste heat to stay in the waste heat recovery apparatus 10 is long So that loss of waste heat can be prevented. Further, by providing the parabola-shaped waste heat collecting part 400 at the lower part of the superheating part, radiation and convection of the waste heat occur around the superheating part 300, thereby improving the heat exchange performance of the superheating part 300 .

본 발명은 도면에 도시된 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 다른 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의하여 정해져야 할 것이다.While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10 : 폐열회수장치 20 : 열원
100 : 온수부 110 : 상부하우징
120 : 온수관 200 : 예열부
210 : 하우징 220 : 예열관
230 : 지지체 300 : 과열부
310 : 제1과열부 320 : 제2과열부
400 : 폐열수집부 400a : 볼록면
400b : 오목면 400c : 가장자리
500 : 탈수부10: waste heat recovery device 20: heat source
100: hot water part 110: upper housing
120: Hot water pipe 200: Preheating part
210: housing 220: preheating tube
230: Support body 300:
310: first superheating unit 320: second superheating unit
400: waste heat collecting part 400a: convex surface
400b: concave surface 400c: edge
500: dehydrating part

Claims (6)

외부에서 공급받은 냉수를 열원에서 배출되는 폐열로 가열하여 온수를 생성하는 온수부; 상기 온수부로부터 공급받은 온수를 폐열로 예열하는 예열부; 상기 예열부에서 예열된 수분 및 증기를 과열시키는 과열부; 및 상기 열원과 과열부의 사이에 설치되어 폐열을 수집하는 폐열수집부를 포함하는 폐열회수장치에 있어서,
상기 과열부는, 상기 예열부로부터 공급받은 수분 및 증기를 폐열로 과열하는 제1과열부와, 상기 제1과열부의 하부에 상기 제1과열부와 연통하도록 연결 설치되어, 상기 제1과열부로부터 공급받은 과열증기를 폐열로 재과열하는 제2과열부를 포함하고,
상기 제2과열부는 상기 예열부의 내측 공간에 설치되는 것을 특징으로 하는 폐열회수장치.A hot water unit for generating hot water by heating cold water supplied from outside with waste heat discharged from a heat source; A preheating unit for preheating the hot water supplied from the hot water unit to waste heat; A superheating unit for superheating the preheated water and steam in the preheating unit; And a waste heat collecting unit installed between the heat source and the superheating unit to collect waste heat,
The superheating unit may include a first superheating unit for superheating the moisture and steam supplied from the preheating unit to waste heat, and a second superheating unit connected to the first superheating unit to communicate with the first superheating unit, And a second superheating unit for reheating the received superheated steam to waste heat,
And the second superheating unit is installed in an inner space of the preheating unit. 청구항 1에 있어서,
상기 폐열수집부는 파라볼라(Parabola) 형상으로서, 볼록면이 열원과 대향하고, 오목면이 과열부와 대향하도록 배치되는 폐열회수장치.The method according to claim 1,
Wherein the waste heat collecting portion is of a parabola shape, the convex surface facing the heat source and the concave surface facing the superheating portion. 청구항 1 또는 청구항 2에 있어서,
상기 예열부는,
하부로 갈수록 폭이 넓어지는 스커트(Skirt) 형상의 하우징과,
상기 하우징의 내측에 수용되며, 나선으로 복수회 선회되어 돔(Dome) 형상을 갖는 예열관과,
복수회 선회된 상기 예열관을 상하 방향으로 지지 고정시키는 것으로서, 원주 방향을 따라 배치되는 복수개의 지지체를 포함하는 폐열회수장치.The method according to claim 1 or 2,
The pre-
A housing having a skirt shape having a wider width toward the lower portion,
A preheating tube accommodated inside the housing and having a dome shape turned a plurality of times with a spiral,
And a plurality of supporters disposed in the circumferential direction for vertically supporting and fixing the preheating tube rotated a plurality of times. 삭제delete 삭제delete 청구항 1 또는 청구항 2에 있어서,
상기 예열부의 상부에는 상기 예열부로부터 공급받은 수분 및 증기를 회전 원심력에 의해 수분제거를 유도하는 도넛(Doughnut) 형상의 탈수부를 더 포함하는 폐열회수장치.The method according to claim 1 or 2,
And a donut-shaped dewatering unit for guiding the moisture and the steam supplied from the preheating unit to remove moisture by rotating centrifugal force, on the upper part of the preheating unit.
KR1020140134296A 2014-10-06 2014-10-06 Recovery device of waste heat KR101667212B1 (en)

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