KR100469201B1 - Parallel flow heat exchanger - Google Patents

Parallel flow heat exchanger Download PDF

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Publication number
KR100469201B1
KR100469201B1 KR10-2001-0086584A KR20010086584A KR100469201B1 KR 100469201 B1 KR100469201 B1 KR 100469201B1 KR 20010086584 A KR20010086584 A KR 20010086584A KR 100469201 B1 KR100469201 B1 KR 100469201B1
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KR
South Korea
Prior art keywords
refrigerant
heat exchanger
header pipe
parallel flow
heat pump
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KR10-2001-0086584A
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Korean (ko)
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KR20030056380A (en
Inventor
이욱용
고철수
Original Assignee
엘지전자 주식회사
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Priority to KR10-2001-0086584A priority Critical patent/KR100469201B1/en
Publication of KR20030056380A publication Critical patent/KR20030056380A/en
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Publication of KR100469201B1 publication Critical patent/KR100469201B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0256—Arrangements for coupling connectors with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit

Abstract

본 발명은 유입된 냉매가 균일하게 분배되어 열교환 성능이 향상되는 평행유동형 열교환기에 관한 것으로, 본 발명에 따른 평행유동형 열교환기는 냉매포트(101)(102)를 통해 헤더 파이프(10)로 유입된 냉매를 고르게 분산시키는 냉매분산수단을 포함하고, 상기 냉매분산수단이 헤더 파이프(10) 내에 길이 방향으로 장착되며, 다수개의 미세통과공(20a)이 형성된 메쉬패널(20)로 이루어진다.The present invention relates to a parallel flow type heat exchanger in which the introduced refrigerant is uniformly distributed to improve heat exchange performance. The parallel flow type heat exchanger according to the present invention flows into the header pipe (10) through the refrigerant ports (101, 102). It comprises a refrigerant dispersing means for evenly dispersing, the refrigerant dispersing means is mounted in the lengthwise direction in the header pipe 10, it consists of a mesh panel 20 formed with a plurality of fine passage holes (20a).

상술한 바와 같이 구성된 본 발명에 따른 평행유동형 열교환기에 의하면 히트펌프가 냉방기로 작동되고, 열교환기가 증발기로서 작동될 경우, 하부 냉매포트(102)를 통해 이상유체 상태의 냉매가 흡입되더라도, 냉매가 메쉬패널(20)을 타고 오르면서 각 냉매튜브(12)로 고르게 분산 유입된다.According to the parallel flow type heat exchanger according to the present invention configured as described above, when the heat pump is operated as a cooler and the heat exchanger is operated as an evaporator, even if the refrigerant in the ideal fluid state is sucked through the lower refrigerant port 102, the refrigerant is meshed. While climbing up the panel 20, the refrigerant flows into the refrigerant tubes 12 evenly.

그러므로, 냉매의 고른 분산작용을 통해 난방효율에 비해 난방효율이 저하되는 현상을 방지할 수 있으며, 냉 난방간의 불균형을 해결하기 열교환기의 부피를 크게 할 필요가 없게 됨으로써, 히트펌프의 작동효율 향상에 도움이 되며, 냉 난방 전환에 따른 불균형을 해소하기 위해 그 부피를 크게할 필요가 없기 때문에 히트펌프의 상품성 및 생산성 향상에도 도움이 된다.Therefore, it is possible to prevent the phenomenon that the heating efficiency is lowered compared to the heating efficiency through the even distribution of the refrigerant, and it is not necessary to increase the volume of the heat exchanger to solve the imbalance between cold and heating, thereby improving the operating efficiency of the heat pump. It also helps to improve the commercialization and productivity of the heat pump because it does not need to increase the volume to solve the imbalance caused by the conversion of cold heating.

Description

평행유동형 열교환기{Parallel flow heat exchanger}Parallel flow heat exchanger

본 발명은 열교환기에 관한 것으로서, 보다 상세하게는 유입된 냉매가 균일하게 분배되어 열교환 성능이 향상되는 평행유동형 열교환기에 관한 것이다.The present invention relates to a heat exchanger, and more particularly, to a parallel flow type heat exchanger in which the introduced refrigerant is uniformly distributed to improve heat exchange performance.

일반적으로 평행유동형 열교환기는 도 1에 나타난 것과 같이 한쌍의 헤더 파이프(10)와, 상기 양 헤더 파이프(10)(10')를 서로 연통시켜 냉매를 유동시키는 다수개의 냉매튜브(12)와, 상기 냉매튜브(12)들 사이에 개재된 다수개의 전열핀(14)으로 이루어져 있다.In general, a parallel flow type heat exchanger, as shown in FIG. 1, has a pair of header pipes 10, a plurality of refrigerant tubes 12 for communicating refrigerant by communicating both header pipes 10, 10 ′ with each other, and It consists of a plurality of heat transfer fins 14 interposed between the refrigerant tubes (12).

여기서, 상기 헤더 파이프(10)에는 내부공간을 차단하여 유입된 냉매가 냉매튜브(12)를 통해 반대측 헤더 파이프(10')로 유동되도록 하는 다수개의 배플(baffle)(16)이 내장되어 있는데, 상기 배플(16)은 좌우 헤더 파이프(10)에서의 위치가 서로 엇갈리도록 배치된다.Here, the header pipe 10 has a plurality of baffles 16 are built in to block the internal space so that the introduced refrigerant flows to the opposite header pipe 10 'through the refrigerant tube 12. The baffles 16 are arranged such that their positions in the left and right header pipes 10 are staggered from one another.

그리고, 냉매튜브(12)는 양선단이 양 헤더 파이프(10)(10')에 삽입되는 형태로 장착되며 납작한 타원형의 단면을 가진 플랫타입으로 이루어져 있으며, 헤더 파이프(10)에는 냉매의 흡배출 위한 한쌍의 냉매포트(101)(102) 또한 구비되어 있다.In addition, the refrigerant tube 12 is mounted in a form in which both ends are inserted into both header pipes 10 and 10 ', and has a flat type having a flat oval cross section. A pair of refrigerant ports 101 and 102 are also provided.

상술한 바와 같이 구성된 평행유동형 열교환기에 의하면 배플(16)에 의해 내부가 차단된 헤더 파이프(10)(10')의 구조상, 일측 냉매포트(101)를 통해 일측 헤더 파이프(10)로 유입된 냉매가 냉매튜브(12)들을 통해 좌우 헤더 파이프(10)(10')를 왕복 순환하여 아래로 흘러내린 다음 타측 냉매포트(102)를 통해 배출되는 과정에서 주위 공기와 열교환함으로써 냉각 또는 발열작용이 이루어진다.According to the parallel flow type heat exchanger configured as described above, the refrigerant flowed into the header pipe 10 through the refrigerant port 101 on one side due to the structure of the header pipes 10 and 10 'blocked by the baffle 16. Is reciprocated through the left and right header pipes (10, 10 ') through the refrigerant tubes (12) to flow down and then cooled or exothermic by heat exchange with ambient air in the process of being discharged through the other refrigerant port (102) .

한편, 냉방 및 난방작용을 함께 행하는 히트펌프에서는 실내기의 사용목적에 따라, 증발기와 응축기의 역할이 바뀌게 된다. 즉, 히트펌프를 냉방기로 사용할 때는 실내기의 열교환기가 증발기의 역할을 하게 되며, 실외기의 열교환기가 응축기 역할을 하게되는 반면, 난방기로 사용할 때는 그 반대가 되는 것이다.On the other hand, in the heat pump that performs cooling and heating, the role of the evaporator and the condenser is changed depending on the purpose of the indoor unit. That is, when the heat pump is used as a cooler, the heat exchanger of the indoor unit acts as an evaporator, while the heat exchanger of the outdoor unit acts as a condenser, while using the heater as the opposite.

그리고 히트펌프에 설치되는 평행유동형 열교환기는, 양 헤더파이프(10)(10')가 아래 위로 배치되는 수평형(미도시) 내지는 헤더 파이프(10)(10')가 좌 우로 배치되는 수직형으로 설치되는데, 열교환기가 수직형으로 설치된 히트펌프는 사용목적에 따라 열교환효율이 달라지게 된다.The parallel flow type heat exchanger installed in the heat pump has a horizontal type (not shown) in which both header pipes 10 and 10 'are disposed up and down, or a vertical type in which the header pipes 10 and 10' are arranged left and right. The heat pump is installed vertically, the heat exchanger heat exchange efficiency will vary depending on the purpose of use.

그 이유는 열교환기로 유입되는 냉매의 상태가 난방기로서 사용되는 경우와, 냉방기로 사용되는 경우에 다르기 때문이다.The reason for this is that the state of the refrigerant flowing into the heat exchanger is different from the case used as a heater and the case used as a cooler.

즉, 히트펌프가 난방기로 사용되는 경우에 실내 열교환기는 응축기로서의 역할을 수행하게 되는데, 이때 상부 냉매포트(101)를 냉매 흡입포트로 사용하면, 압축기를 거치면서 온도와 압력이 높아진 기체 상태의 냉매(건도 1)가 유입됨으로써 냉매가 고르게 분산되어 각 냉매튜브(12)로 유입되고, 냉매튜브(12)를 거치면서 온도와 압력이 낮아진 냉매가 아래로 내려와 하부 냉매포트(102)를 통해 배출된다.That is, when the heat pump is used as a heater, the indoor heat exchanger plays a role as a condenser. At this time, when the upper refrigerant port 101 is used as a refrigerant suction port, a refrigerant in a gas state having a high temperature and pressure while passing through a compressor (Dry 1) is introduced, the refrigerant is evenly distributed and introduced into each refrigerant tube 12, the refrigerant lowered in temperature and pressure while passing through the refrigerant tube 12 is discharged down and discharged through the lower refrigerant port 102 .

그러나, 히트펌프가 냉방기로 사용되는 경우에는 실내 열교환기가 증발기로서 역할을 수행하기 때문에 도 2에 나타난 것과 같이 하부 냉매포트(102)를 통해 냉매(도면상 화살표시)가 유입되는데, 이때의 냉매는 액체와 기체가 혼합된 이상(異狀)유체상태(건도 약 0.2)이기 때문에 냉매의 유동상태가 원활하지 못해 각 냉매튜브(12)로 고르게 분해 유입되지 않는다.However, when the heat pump is used as a cooler, since the indoor heat exchanger plays a role as an evaporator, as shown in FIG. 2, a coolant (when an arrow in the drawing) flows in through the lower coolant port 102. Since the liquid and gas are mixed in an ideal fluid state (about 0.2 degree dryness), the flow state of the refrigerant is not smooth and does not evenly flow into each refrigerant tube 12.

따라서, 종래기술에 의하면 냉매의 상태변화에 따른 유동성 저하로 인해 히 트펌프의 냉 난방성능이 균일하게 전환되지 않으며, 이를 해결하기 위해 열교환기의 면적을 크게하여 열교환면적을 넓히는 등의 방법을 사용할 경우에는 결과적으로 제작비용 및 부피가 커짐으로써 히트펌프의 상품성이 저하된다는 문제점이 발생한다.Therefore, according to the prior art, the cooling and heating performance of the heat pump is not uniformly converted due to the fluidity deterioration due to the change of the state of the refrigerant. In this case, there arises a problem that the marketability of the heat pump is lowered as the manufacturing cost and volume are increased.

본 발명은 상기한 종래 문제점을 해결하고자 안출된 것으로서, 냉매의 상태변화에 상관없이 냉매가 각 냉매튜브로 고르게 분배 유동되는 구조로 이루어지는 평행유동형 열교환기의 제공을 목적으로 한다.The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a parallel flow heat exchanger having a structure in which a refrigerant is evenly distributed and flowed into each refrigerant tube regardless of a state change of the refrigerant.

도 1은 종래 평행유동형 열교환기의 구조를 나타낸 사시도이다.1 is a perspective view showing the structure of a conventional parallel flow type heat exchanger.

도 2는 종래 평행유동형 열교환기의 냉매유동상태를 단면도이다.2 is a cross-sectional view of a refrigerant flow state of a conventional parallel flow type heat exchanger.

도 3은 본 발명의 실시예에 따른 냉매분산수단의 형태를 나타낸 사시도이다.Figure 3 is a perspective view showing the form of the refrigerant dispersing means according to an embodiment of the present invention.

도 4는 본 발명의 실시예에 따른 냉매분산수단이 설치된 상태를 나타낸 단면도이다.4 is a cross-sectional view showing a state in which a refrigerant dispersing means is installed according to an embodiment of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10: 헤더 파이프 101, 102: 냉매포트10: header pipe 101, 102: refrigerant port

12: 냉매튜브 14: 냉매포트12: refrigerant tube 14: refrigerant port

16: 배플 20: 메쉬패널16: baffle 20: mesh panel

20a: 미세통과공20a: microthrough hole

상기 목적을 달성하기 위하여 제공되는 평행유동형 열교환기는 냉매 흡입포트를 통해 헤더 파이프로 유입된 냉매를 고르게 분산시키는 냉매분산수단을 포함하고, 상기 냉매분산수단이 헤더 파이프 내에 길이 방향으로 장착되며, 다수개의 미세통과공이 형성된 메쉬패널로 이루어진다.The parallel flow type heat exchanger provided to achieve the above object includes a refrigerant dispersing means for evenly dispersing the refrigerant introduced into the header pipe through the refrigerant suction port, and the refrigerant dispersing means is mounted in the header pipe in a longitudinal direction, It consists of a mesh panel formed with a micro-through hole.

이하, 본 발명의 실시예를 첨부된 도 3과 도 4를 참조로 하여 상세하게 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 3 and 4.

본 발명의 실시예에 따른 평행유동형 열교환기는 헤더 파이프(10)로 유입된 냉매를 고르게 분산시키는 냉매분산수단을 포함하여 이루어지는데, 상기 냉매분산수단은 헤더 파이프(10) 내에 길이 방향으로 장착되며, 다수개의 미세통과공(20a)이 형성된 메쉬패널(mesh panel)(20)로 이루어진다.Parallel flow heat exchanger according to an embodiment of the present invention comprises a refrigerant dispersing means for evenly dispersing the refrigerant introduced into the header pipe 10, the refrigerant dispersing means is mounted in the header pipe 10 in the longitudinal direction, It consists of a mesh panel (mesh panel) 20 in which a plurality of fine through holes 20a are formed.

여기서, 상기 미세통과공(20a)은 원형 내지는 다각형으로 이루어지며, 직경(d)이 약 1 ~ 2mm 정도로 구성된다.Here, the micro-pass hole (20a) is made of a circular or polygonal, the diameter (d) is composed of about 1 ~ 2mm.

그리고, 상기 메쉬패널(20)은 배플(16)을 중심으로 다수개가 분리 배치되며, 각 냉매튜브(12)와 수직접촉하는 구조로 장착된다.In addition, a plurality of mesh panels 20 are disposed separately around the baffle 16 and mounted in a vertical contact with each refrigerant tube 12.

상술한 바와 같이 구성된 본 발명의 실시예에 의하면 메쉬패널(20)의 특성(다공성 구조)상, 냉매포트(101)(102)를 통해 흡입되는 냉매가 메쉬패널(20)의 미세공에 흡수 전달되면서 헤더 파이프(10)의 길이방향으로 신속히 전달되고, 전달된 냉매는 메쉬패널(20)에 접한 다수개의 냉매튜브(12)로 유입된다.According to the exemplary embodiment of the present invention configured as described above, the refrigerant sucked through the refrigerant ports 101 and 102 is absorbed and transferred to the micropores of the mesh panel 20 due to the characteristics (porous structure) of the mesh panel 20. While being quickly delivered in the longitudinal direction of the header pipe 10, the delivered refrigerant is introduced into the plurality of refrigerant tubes 12 in contact with the mesh panel 20.

따라서, 본 실시예에 의하면 헤더 파이프(10) 내로 유입된 냉매의 유동효율이 향상되며, 특히 히트펌프가 냉방기로 작동되고, 열교환기가 증발기로서 작동될 경우, 하부 냉매포트(102)를 통해 이상유체 상태의 냉매가 흡입되더라도, 냉매가 메쉬패널(20)을 타고 오르면서 각 냉매튜브(12)로 유입되기 때문에, 각 냉매튜브(12)로 고르게 유입된다.Therefore, according to the present embodiment, the flow efficiency of the refrigerant introduced into the header pipe 10 is improved, in particular, when the heat pump is operated as a cooler and the heat exchanger is operated as an evaporator, the ideal fluid through the lower refrigerant port 102. Even if the coolant in the state is sucked in, the coolant flows into each coolant tube 12 while climbing up the mesh panel 20, and thus flows evenly into each coolant tube 12.

그러므로, 냉매의 고른 분산작용을 통해 난방효율에 비해 난방효율이 저하되는 현상을 방지할 수 있으며, 냉 난방간의 불균형을 해결하기 열교환기의 부피를 크게 할 필요가 없게 된다.Therefore, it is possible to prevent the phenomenon that the heating efficiency is lowered compared to the heating efficiency through the even distribution of the refrigerant, it is not necessary to increase the volume of the heat exchanger to solve the imbalance between cold heating.

이상에서 설명한 바와 같이 본 발명에 따른 평행유동형 열교환기는 냉매분산수단이 구비된 특성상, 히트펌프의 냉 난방 전환시의 효율이 일정하게 유지되도록 하기 때문에 히트펌프의 작동효율 향상에 도움이 되며, 냉 난방 전환에 따른 불균형을 해소하기 위해 그 부피를 크게할 필요가 없기 때문에 히트펌프의 상품성 및 생산성 향상에도 도움이 된다.As described above, since the parallel flow type heat exchanger according to the present invention has a refrigerant dispersing means, the efficiency of switching the heat pump of the heat pump is kept constant, which helps to improve the operating efficiency of the heat pump. It is also helpful to improve the commercialization and productivity of the heat pump because it does not need to increase the volume to solve the imbalance caused by the conversion.

Claims (3)

한쌍의 헤더 파이프와,A pair of header pipes, 상기 헤더 파이프의 측면에 형성된 관통슬롯을 통해 그 일단이 삽입되는 방식으로 헤더 파이프와 결합되는 다수개의 냉매튜브와,A plurality of refrigerant tubes coupled to the header pipe in such a manner that one end thereof is inserted through a through slot formed at a side of the header pipe; 상기 냉매튜브들 사이에 개재된 전열핀과,A heat transfer fin interposed between the refrigerant tubes; 상기 헤더 파이프에 구비된 냉매 흡입 및 토출을 위한 냉매포트와,A refrigerant port for suction and discharge of the refrigerant provided in the header pipe; 상기 헤더 파이프의 내부공간을 차단하는 배플과,A baffle for blocking an inner space of the header pipe; 상기 냉매포트를 통해 헤더 파이프로 유입된 냉매를 고르게 분산시키는 냉매분산수단을 포함하며,Refrigerant dispersing means for evenly dispersing the refrigerant flowing into the header pipe through the refrigerant port, 상기 냉매 분산수단은 상기 냉매포트로부터 흡입 및 토출되는 냉매를 분산시켜 주기 위해 상기 헤더파이프 내에 길이 방향으로 장착되며, 다수개의 미세통과공이 형성된 메쉬패널을 포함하는 것을특징으로 하는 평행유동형 열교환기. The refrigerant dispersing means is mounted in the lengthwise direction in the header pipe to disperse the refrigerant sucked in and discharged from the refrigerant port , the parallel flow heat exchanger, characterized in that it comprises a plurality of fine through-hole mesh panel formed . 삭제delete 제 1항에 있어서,The method of claim 1, 상기 메쉬패널은 상기 헤더파이프 내에서 길이 방향으로 장착되고 다수개의 미세 통과공을 수직하게 형성시켜 상기 헤더파이프에 결합된 각각의 냉매튜브와 서로 수직하게 접촉되는 것을 특징으로 하는 평행유동형 열교환기. The mesh panel is mounted in the longitudinal direction in the header pipe and a plurality of fine through-holes to form a vertical contact with each refrigerant tube coupled to the header pipe perpendicular to each other , characterized in that the vertical flow.
KR10-2001-0086584A 2001-12-28 2001-12-28 Parallel flow heat exchanger KR100469201B1 (en)

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Publication number Priority date Publication date Assignee Title
KR101406071B1 (en) 2013-05-06 2014-06-11 구일공조주식회사 Evaporator

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JPS60181590U (en) * 1984-05-14 1985-12-02 株式会社荏原製作所 Heat exchanger
JPH02213697A (en) * 1989-02-10 1990-08-24 Mitsubishi Heavy Ind Ltd Multitube type heat transfer device with fins
KR19980083890A (en) * 1997-05-20 1998-12-05 이형도 Receiver and dryer integrated condenser

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JPS5346401U (en) * 1976-09-24 1978-04-20
JPS60181590U (en) * 1984-05-14 1985-12-02 株式会社荏原製作所 Heat exchanger
JPH02213697A (en) * 1989-02-10 1990-08-24 Mitsubishi Heavy Ind Ltd Multitube type heat transfer device with fins
KR19980083890A (en) * 1997-05-20 1998-12-05 이형도 Receiver and dryer integrated condenser
KR100214833B1 (en) * 1997-05-20 1999-08-02 이형도 Condenser integrating receiver and dryer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101406071B1 (en) 2013-05-06 2014-06-11 구일공조주식회사 Evaporator

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