KR20030081612A - Plastics heat exchanger for exhaust heat withdrawal - Google Patents

Plastics heat exchanger for exhaust heat withdrawal Download PDF

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Publication number
KR20030081612A
KR20030081612A KR1020020019935A KR20020019935A KR20030081612A KR 20030081612 A KR20030081612 A KR 20030081612A KR 1020020019935 A KR1020020019935 A KR 1020020019935A KR 20020019935 A KR20020019935 A KR 20020019935A KR 20030081612 A KR20030081612 A KR 20030081612A
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South Korea
Prior art keywords
heat transfer
heat
concave
heat exchanger
sides
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KR1020020019935A
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Korean (ko)
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KR100505482B1 (en
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유성연
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유성연
주식회사 에이스랩
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Priority to KR10-2002-0019935A priority Critical patent/KR100505482B1/en
Publication of KR20030081612A publication Critical patent/KR20030081612A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/065—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing plate-like or laminated conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • 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
    • F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation

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

Abstract

PURPOSE: A plastic heat exchanger for recovering exhaust heat is provided to reduce cost, and to prevent deterioration of heat exchange performance. CONSTITUTION: A plurality of heat transfer plates(10) forming a heat exchanger are square to be easily laminated, and having pairs of corresponding sides opened to allow exhaust air or outside air to pass in one direction. A pair of circumference parts of the heat transfer plate facing each other are formed to be concave sides(11) concave more than the other circumference parts neighboring. The other pair of the circumference parts are protrusively formed to be joining sides(12). The concave sides allow exhaust air or outside air to pass. An upper side and a lower side corresponding with the concave sides and the joining sides form joining sides and concave sides naturally protruding and caving in. A heat transfer side(13) is formed on a center of the heat transfer plate. The heat transfer side is formed to be wavy and jagged in diagonal direction between the concave side and the joining side to maximize heat transfer area per unit plate so as to improve heat transfer rate and to allow turbulence to be easily generated.

Description

배기열 회수용 플라스틱 열교환기{Plastics heat exchanger for exhaust heat withdrawal}Plastic heat exchanger for exhaust heat withdrawal}

본 발명은 산업체와 상업용 건물의 공기조화장치 또는 아파트, 지하상가, 지하철 등의 환기장치에서 배출되는 배기열을 회수함으로써 냉난방 에너지를 절약할수 있는 열교환기에 관한 것으로, 특히 전열판이 박막의 플라스틱으로 성형되어 있으며 열전달이 일어나는 전열면이 물결형으로 구성되어 열교환 면적이 넓어짐과 동시에 대류열전달이 촉진될 수 있도록 한 배기열 회수용 플라스틱 열교환기에 관한 것이다.The present invention relates to a heat exchanger that can save the heating and cooling energy by recovering the exhaust heat discharged from the air conditioning device of industrial and commercial buildings or the ventilation device of the apartment, underground shopping mall, subway, etc., in particular, the heat transfer plate is formed of a thin plastic film It relates to a plastic heat exchanger for exhaust heat recovery that the heat transfer surface in which the heat transfer takes place is formed in a wavy shape so that the heat exchange area can be widened and convective heat transfer can be promoted.

근래에는 쾌적한 환경의 추구로 인하여 냉난방을 위한 공조시스템과 환기장치의 사용은 확대되었으며, 이로 인해 여름 및 겨울의 에너지 사용량이 급증하고 있는 것이었다.In recent years, the use of air conditioning and ventilation systems for heating and cooling has been expanded due to the pursuit of a pleasant environment, which has led to a surge in energy consumption in summer and winter.

특히 상기 공조시스템과 환기장치에서 나오는 배기열은 온도는 낮지만 그 양이 대단히 많음은 물론 도입되는 외기를 가열 또는 냉각하는데 직접 사용할 수 있기 때문에 배기열 회수에 대한 대책이 시급한 실정인 것이었다.In particular, since the exhaust heat from the air conditioning system and the ventilation device is low in temperature, the amount of exhaust heat is very high, and since the exhaust heat can be directly used for heating or cooling the introduced outside air, it is urgent to take measures against exhaust heat recovery.

게다가 에너지 절약의 일환으로 실내 공간은 더욱더 밀폐와 단열을 요구하게 되었고, 결과적으로 환기량이 적게 됨에 따라 실내 공기의 질은 악화되었으며, 이를 해결하고자 적절한 배기열 회수장치가 부착된 환기시설의 설치가 요구되고 있는 것이었고 이와 같은 배기열 회수장치를 사용할 경우 50∼70%의 배기열을 회수하여 냉난방에 소요되는 에너지를 상당부분 절약할 수 있는 것이었다.In addition, as part of energy saving, indoor spaces are required to be more sealed and insulated, and as a result, the amount of indoor air deteriorates as the amount of ventilation is reduced. To solve this problem, it is required to install a ventilation system equipped with an appropriate exhaust heat recovery system. When the exhaust heat recovery device is used, 50 to 70% of the exhaust heat can be recovered to save a considerable amount of energy for heating and cooling.

종래의 공조시스템에서는 회전축열식 열교환기, 히트파이프식 열교환기, 알루미늄 판형 열교환기 등이 배기열회수용으로 주로 사용되고 있으나, 이들 열교환기는 유지,관리가 어렵고 고가이기 때문에 건축설계자나 건물주가 사용을 기피하여 일부 상업용 건물에만 적용되고 있다. 따라서 가격이 저렴하며 설치가 쉽고 열전달 성능이 뛰어난 소형 열교환기로 대체되고 있는 추세이다.In the conventional air conditioning system, a rotary heat storage heat exchanger, a heat pipe type heat exchanger, and an aluminum plate heat exchanger are mainly used for exhaust heat recovery.However, these heat exchangers are difficult to maintain and manage and are expensive, so they are avoided by architects or building owners. Applicable only to some commercial buildings. Therefore, it is being replaced by a small heat exchanger that is inexpensive, easy to install, and has excellent heat transfer performance.

지금까지는 알루미늄이 배기열 회수용 열교환기의 재료로 주로 이용되어 왔으나, 상기 알루미늄을 이용하여 제작한 다수의 전열판을 적층하여 열교환기로 제작함에 있어 많은 어려움이 있는 것이었다. 즉 종래에는 다수의 전열판을 적층한 후 이 전열판을 상호간 접착할 경우 두 전열판의 테두리부를 절곡하여 어느 하나의 전열판 테두리부가 다른 전열판의 테두리부를 감싼채 접철시키므로써 작업공정이 매우 복잡하고 추가적인 인력이 소요되어 생산성이 저하되는 것이었다.Until now, aluminum has been mainly used as a material of the heat exchanger for exhaust heat recovery, but there have been many difficulties in manufacturing a heat exchanger by stacking a plurality of heat transfer plates manufactured using the aluminum. In other words, in the past, when a plurality of heat transfer plates are stacked and the heat transfer plates are bonded to each other, the process of the heat transfer is very complicated and additional manpower is required by bending the edges of the two heat transfer plates and folding the edges of the other heat transfer plates. The productivity was lowered.

이로 인해 현재는 플라스틱이나 종이 등의 다양한 비금속 재질의 사용이 증대되고 있다. 비금속 재질의 열교환기는 저가로 제작할 수 있으며, 경량화 할 수 있고, 부식의 위험이 적다는 장점을 가지고 있다. 그러나 열전도계수가 알루미늄에 비해 매우 낮기 때문에 열전달 성능이 저하되는 문제점이 있는 것이었다.As a result, the use of various non-metallic materials such as plastic or paper is increasing. Non-metal heat exchangers have the advantages of low cost, light weight, and low risk of corrosion. However, since the thermal conductivity is very low compared to aluminum, there was a problem that the heat transfer performance is reduced.

즉 비금속 재료를 이용한 종래의 플라스틱 열교환기는 아직 연구가 미비하고 무엇보다 열전달을 촉진시키기 위한 많은 연구가 수행되지 않아 일반적으로 평판-핀형의 단순한 형상으로 이루어진 것으로, 낮은 열교환 효율을 보이고 있어 배기열 회수를 통한 에너지 절약효과가 알루미늄 열교환기에 비해서 미약한 실정인 것이었다.In other words, conventional plastic heat exchangers using non-metallic materials have not been studied yet, and most of them have not been studied to promote heat transfer. Therefore, the conventional plastic heat exchanger has a simple flat plate-like shape, and shows low heat exchange efficiency. The energy saving effect was weak compared to the aluminum heat exchanger.

본 발명은 상기와 같은 문제점을 일소하기 위한 방안으로 박막의 플라스틱으로 전열판을 제작하고, 전열면을 물결모양의 요철로 성형하여 열교환 면적을 넓혀줌과 동시에 대류열전달을 촉진시키므로써 기존의 알루미늄 열교환기에 비해 가격이 훨씬 저렴한 반면 종래에 사용되고 있는 평판-핀형 플라스틱 열교환기의 문제점인 열성능 저하를 동시에 해결할 수 있도록 하는 것이다.The present invention provides a heat transfer plate made of a thin film of plastic as a way to eliminate the above problems, by forming the heat transfer surface into a wavy concave-convex to increase the heat exchange area and to promote convective heat transfer to the existing aluminum heat exchanger While the price is much lower than that, it is possible to simultaneously solve the problem of deterioration of thermal performance, which is a problem of the plate-type plastic heat exchanger used in the related art.

또한 전열판의 사방 테두리부에 요철면을 교대로 형성하므로써 상기 전열판을 90°방향의 교호로 적재한 후 상호 밀착되는 요부와 철부를 열융착하는 간단한 공정으로 열교환기를 제작할 수 있도록 하는 것이다.In addition, by forming the concave-convex surface alternately in the four corners of the heat transfer plate to the heat transfer plate to be manufactured by a simple process of heat-sealing the convex portion and the convex portion that is in close contact with each other after loading the heat transfer plate alternately in the 90 ° direction.

이러한 본 발명은 박막의 플라스틱 전열판을 물결형으로 성형하므로써 단위판당 전열면적이 넓어져 열전달량을 증가시키는 효과가 있으며, 전열판의 물결모양 요철을 90° 방향의 교호로 접합시키므로써 복잡하게 형성되는 유로에 의해 저속의 유동에서도 난류를 쉽게 발생시키게 되어 열전달 성능을 획기적으로 향상시킬 수 있는 한편 간단한 제작공정에 의해 열교환기를 제공할 수 있게 된다.The present invention has the effect of increasing the heat transfer area by increasing the heat transfer area per unit plate by forming a thin plastic heat transfer plate of the wave shape, the flow path is formed by complexly bonding the wavy irregularities of the heat transfer plate in the 90 ° direction alternately This makes it easy to generate turbulence even at low speeds, which can dramatically improve heat transfer performance and provide a heat exchanger by a simple manufacturing process.

도 1 은 본 발명이 적용된 물결형 열교환기의 사시도1 is a perspective view of a wavy heat exchanger to which the present invention is applied

도 2 는 본 발명 물결형 열교환기의 분해사시도2 is an exploded perspective view of the present invention wavy heat exchanger

도 3 은 본 발명의 배기열 회수상태를 개략적으로 나타낸 평면도3 is a plan view schematically showing an exhaust heat recovery state of the present invention;

도 4 는 도 3의 A-A선 단면도4 is a cross-sectional view taken along the line A-A of FIG.

도 5 는 도 3의 B-B선 단면도5 is a cross-sectional view taken along the line B-B of FIG.

도 6 은 본 발명의 성능평가 실시도6 is a performance evaluation of the present invention

도 7 은 본 발명의 다른 실시예 평면도7 is a plan view of another embodiment of the present invention;

[도면의 주요부분에 대한 부호의 설명][Explanation of symbols on the main parts of the drawings]

1: 열교환기 10: 전열판 11: 요입면1: heat exchanger 10: heating plate 11: recessed surface

12: 접합면 13: 전열면12: joint surface 13: heat transfer surface

본 발명의 구성은 도 1 내지 도 3 에 의해 확연하게 보여지는 것으로, 이를 근거로 하여 실시가능할 정도의 상세한 설명을 하면 다음과 같다.The configuration of the present invention is clearly shown by Figs. 1 to 3, the detailed description of the possible degree based on this is as follows.

본 발명의 열교환기(1)를 구성하는 다수의 전열판(10)은 전체적인 형상이 사각체로 적층이 용이함은 물론 적층이 완료된 후에는 어느 한 방향으로 배출공기 혹은 외부공기가 통과할 수 있도록 대응하는 어느 한쌍의 측면부가 개방된 형태를 취한다.The plurality of heat transfer plates 10 constituting the heat exchanger 1 of the present invention may be easily stacked in a rectangular shape, and the exhaust heat or external air may pass in either direction after the stacking is completed. The pair of side portions take an open form.

이를 위해 전열판(10)의 마주하는 어느 한쌍의 테두리부를 인접된 다른 테두리부 보다 함몰되게 요입면(11)으로 형성하고, 상기 요입면(11)에 인접된 다른 한쌍의 테두리부는 돌출되게 접합면(12)을 형성한다.To this end, any one pair of edges facing the heat transfer plate 10 is formed as the recessed surface 11 to be recessed than other adjacent edges, and the other pair of edges adjacent to the recessed surface 11 protrudes from the joint surface ( 12) form.

즉 전열판(10)의 사방 테두리부는 요철이 형성된 것으로, 요입면(11)을 통해서는 배출공기 혹은 외부공기가 통과될 수 있으며 요입면(11) 및 접합면(12)에 대응하는 상,하부면은 자연적으로 돌출,함몰된 형태의 접합면(12)과 요입면(11)을 형성하게 된다.That is, the four corners of the heat transfer plate 10 are formed with irregularities, through which the discharge air or external air may pass through the recessed surface 11, and the upper and lower surfaces corresponding to the recessed surface 11 and the joint surface 12. Naturally forms a protruding and recessed joining surface 12 and recessed surface 11.

상기 전열판(10)의 중앙부에는 본 발명의 핵심기술인 전열면(13)을 형성한다. 전열면(13)은 요입면(11)과 접합면(12) 사이에 대각선 방향으로 물결모양의 요철형태로 성형하여 단위판당 전열면적을 최대로 증대하므로써 열전달량을 향상시키는 동시에 난류가 쉽게 발생될 수 있도록 한다.In the central portion of the heat transfer plate 10 is formed a heat transfer surface 13 which is the core technology of the present invention. The heat transfer surface 13 is formed in the shape of a wave-shaped unevenness in the diagonal direction between the recessed surface 11 and the joint surface 12 to maximize the heat transfer area per unit plate to improve the heat transfer amount and at the same time easily generate turbulence To help.

한편 상기 전열판(10)은 폴리프로필렌(PP)과 같은 플라스틱을 주원료로 하되 종래의 알루미늄에 비해 열전도계수가 낮아 열전달 성능이 저하됨을 방지하기 위해 열전달 촉진기술을 접목하여 전열면(13)과 유동공기 사이의 대류열저항을 감소시키므로써 열전달성능을 기존의 알루미늄 열교환기에 비해서 향상시킬 수 있도록 한다.Meanwhile, the heat transfer plate 10 is made of plastic such as polypropylene (PP) as a main raw material, but the heat transfer coefficient 13 is combined with heat transfer acceleration technology in order to prevent heat transfer performance from lowering in the heat transfer coefficient compared to conventional aluminum. By reducing the convective heat resistance between the heat transfer performance can be improved over the existing aluminum heat exchanger.

이러한 구성을 갖는 전열판(10)을 다수개 적층하여 열교환기(1)를 형성함에 있어 종래 복잡한 작업공정에 의존하던 것과 달리 본 발명에서는 도 2 와 같이 전열면(13)의 물결모양이 상호 엇갈리게 90° 방향의 교호로 적층시키되 어느 하나의 전열판(10) 요입면(11)과 대응하는 다른 전열판(10)의 접합면(12)을 열융착시키는 간단한 공정으로 열교환기를 제작할 수 있어서 생산성을 향상시킬 수 있게 된다.In the present invention, unlike the conventional complicated work process in forming a heat exchanger 1 by stacking a plurality of heat transfer plates 10 having such a configuration, in the present invention, the wave shapes of the heat transfer surfaces 13 are alternately 90 as shown in FIG. 2. The heat exchanger can be manufactured by a simple process of laminating the heat exchanger of the heat transfer plate 10 of the heat transfer plate 10 and the joining surface 12 of the other heat transfer plate 10 corresponding to the heat transfer plate 10. Will be.

따라서 전열판(10)은 접합면(12)측이 밀폐된 상태이고 요입면(11)은 개방된 형태이므로 도 4 와 같이 자연적으로 공기가 유입,배출될 수 있는 유입구(14)와 유출구(15)를 형성하게 되며 상기 유입구(14)와 유출구(15)를 통해 일방향으로만 배출공기나 외부공기가 유동될 수 있게 된다.Therefore, the heat transfer plate 10 is in a state in which the junction surface 12 is sealed and the inlet surface 11 is open, so as shown in FIG. 4, an inlet 14 and an outlet 15 through which air can be naturally introduced and discharged. It forms a and through the inlet 14 and the outlet 15 it is possible to flow the discharge air or external air only in one direction.

또한 전열판(10)은 90° 방향의 교호로 적층함에 따라 유입구(14) 및 유출구(15)가 직교류상태로 설치되므로써 어느 한쌍의 요입면(11)을 통해서는 단독으로 배출공기 만을 통과시키고 인접된 다른 요입면(11)을 통해서는 외부공기를 단독으로 통과시켜 전열판(10)의 사이에서 배출공기와 유입공기가 직교류 상태로 통과하면서 상호간 열교환을 할 수 있도록 한다.In addition, as the heat transfer plate 10 is alternately stacked in the 90 ° direction, the inlet port 14 and the outlet port 15 are installed in a cross flow state, so that only the exhaust air is allowed to pass through the pair of concave inlet surfaces 11 and adjacent to each other. Through the other concave inlet surface 11 through the outside air alone to allow the heat exchange between the exhaust air and the inlet air in the cross-flow state between the heat transfer plate (10).

여기에서 전열판(10) 사이를 통과하는 배출공기와 외부공기는 물결모양의 전열면(13)에 의해 보다 복잡하게 형성된 유로를 통과하게 되므로 전열판(10) 사이에서 체류하는 시간(열교환되는 시간)이 연장되고 물결모양의 굴곡을 따라 유동하면서 저속의 유동에서도 난류를 쉽게 발생시켜 열전달 성능을 획기적으로 향상시키게 된다.Here, the discharge air and the external air passing between the heat transfer plates 10 pass through a flow path formed more complicated by the wavy heat transfer surface 13, so that the time (heat exchange time) staying between the heat transfer plates 10 is As it flows along the elongated and wavy curves, it easily generates turbulence even at low speeds, which dramatically improves heat transfer performance.

도 6 은 이러한 본 발명의 성능평가를 위해 플라스틱을 이용한 종래의 평판-핀형, 본 발명의 물결형을 설계, 제작하여 성능평가를 실시한 결과를 나타낸 것이다.Figure 6 shows the results of performing the performance evaluation by designing, manufacturing a conventional flat-pin type, the wave shape of the present invention using a plastic for the performance evaluation of the present invention.

상기 성능평가 결과에 의하면 열전달 성능과 압력손실을 동시에 고려하여 동일 송풍기 동력에서의 성능을 비교한 결과 면풍속 2.5m/sec 에서 본 발명은 열전달 촉진기술이 적용되지 않은 평판형에 비해서 열전달 성능이 41% 증가하였고, 종래에 사용되고 있는 평판-핀형에 비해서는 72% 정도 증가하였으며, 풍속이 증가함에 따라 성능이 더욱더 향상됨을 알 수 있게 된다.According to the results of the performance evaluation, the heat transfer performance and the pressure loss at the same time considering the performance of the same blower power as a result of the present invention at a surface wind speed of 2.5m / sec, the heat transfer performance is 41 compared to the flat type without heat transfer promotion technology It is increased by%, 72% compared to the flat plate-type used in the prior art, it can be seen that the performance is further improved as the wind speed increases.

한편 본 발명에서 전열판(10)의 전체적인 형상을 사각체로 실시하였지만 이에 한정되지 않고 마름모나 육각형 형상을 비롯한 다양한 형태로 실시할 수 있는 것으로, 전열판(10)의 전체적인 형상변화를 꾀하더라도 본 발명의 범주는 벗어날 수 없는 것이다.On the other hand, the overall shape of the heat transfer plate 10 in the present invention is carried out in various forms, including, but not limited to the rhombus or hexagonal shape, even if the overall shape change of the heat transfer plate 10 to the scope of the present invention Cannot escape.

또한 도 7 은 본 발명 다른 실시예의 평면도를 나타낸 것으로 물결모양의 요철로 이루어진 전열면(13)에 요철 길이방향으로 물결모양의 요철을 2차적으로 성형시킨 것으로서, 열전달 성능을 더더욱 향상시킬 수 있게 된다.In addition, Figure 7 shows a plan view of another embodiment of the present invention as a secondary shape of the wavy irregularities in the longitudinal direction of the irregularities on the heat-transfer surface 13 made of wavy irregularities, it is possible to further improve the heat transfer performance .

본 발명은 현재 대부분 버려지고 있는 막대한 양의 아파트, 상업용 건물, 지하상가, 지하철, 공장 등의 공조 및 환기 배기열을 50%∼70% 회수할 수 있으므로 에너지를 획기적으로 절약할 수 있고, 기존의 알루미늄 열교환기에 비해 가격이 훨씬 저렴한 반면 종래 사용되고 있는 평판-핀형 플라스틱 열교환기에 비해서 열성능을 50% 이상 향상시킬 수 있는 일석이조의 효과가 있게 된다.The present invention can recover 50% to 70% of the exhaust heat of the air conditioning and ventilation of the vast amount of apartments, commercial buildings, underground malls, subways, factories, etc., which are largely discarded, and thus it is possible to save energy drastically. While the price is much lower than that of the heat exchanger, it is possible to improve the thermal performance by more than 50% compared to conventional flat-pin plastic heat exchangers.

또한 플라스틱을 주원료로 하므로 재활용을 통해 환경오염을 방지할 수 있는 효과가 제공된다.In addition, since plastic is used as a main raw material, it is possible to prevent environmental pollution through recycling.

Claims (3)

박막의 플라스틱 전열판(10)의 마주하는 어느 한쌍의 테두리부가 함몰되게 요입면(11)을 형성하고,The concave indentation surface 11 is formed such that any pair of edge portions of the thin plastic heat transfer plate 10 facing each other is recessed, 상기 요입면(11)에 인접된 다른 한쌍의 마주하는 테두리부는 돌출되게 접합면(12)을 형성시키며,The other pair of opposing edge portions adjacent to the concave inlet surface 11 forms a joining surface 12 to protrude, 상기 요입면(11) 및 접합면(12) 사이에 대각선 방향으로 전열면적 증대 및 난류 발생을 위해 물결모양의 요철로 전열면(13)을 성형하는 한편,While the heat transfer surface 13 is formed of wavy convex-concave in order to increase the heat transfer area in a diagonal direction between the recessed surface 11 and the joint surface 12 and to generate turbulence, 상기 전열판(10)을 90° 방향의 교호로 적재하되 어느 하나의 전열판(10) 요입면(11)과 대응하는 다른 전열판(10)의 접합면(12)을 일체로 열융착시킨 것을 특징으로 하는 배기열 회수용 플라스틱 열교환기.The heat transfer plate 10 is alternately loaded in a 90 ° direction, but one of the heat transfer plate 10, the concave surface 11 and the joint surface 12 of the other heat transfer plate 10 corresponding to the heat-sealed integrally Plastic heat exchanger for exhaust heat recovery. 청구항 1 에 있어서,The method according to claim 1, 마주하는 어느 한쌍의 요입면(11)을 통해서는 배출공기가 통과되게 하고, 인접된 다른 한쌍의 요입면(11)을 통해서는 외부공기가 통과되게 하여 전열판(10)의 사이에서 배출공기와 외부공기를 열교환시키는 한편 상기 배출공기 및 외부공기는 전열면(13)의 물결모양 굴곡을 따라 유동하면서 난류를 발생시켜 열전달 성능을 향상시키는 것을 특징으로 하는 배기열 회수용 플라스틱 열교환기.The discharge air passes through the pair of concave indents 11 facing each other, and the external air passes through the pair of adjacent indents 11 adjacent to each other to allow the exhaust air to pass through the heat transfer plate 10. The heat exchanger and the exhaust air and the outside air flows along the wavy curve of the heat transfer surface 13 to generate turbulence to improve heat transfer performance, characterized in that the plastic heat exchanger for heat recovery. 청구항 1 에 있어서,The method according to claim 1, 전열면(13)은 요철 길이방향으로 물결모양의 요철을 2차적으로 성형시킨 것을 특징으로 하는 배기열 회수용 플라스틱 열교환기.Heat transfer surface 13 is a plastic heat exchanger for exhaust heat recovery, characterized in that the secondary convexly formed wavy irregularities in the longitudinal direction unevenness.
KR10-2002-0019935A 2002-04-12 2002-04-12 Plastics heat exchanger for exhaust heat withdrawal KR100505482B1 (en)

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KR101643044B1 (en) 2014-08-29 2016-07-29 김미배 Heat exchanger for exhaust-heat recovery

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