KR100342712B1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
KR100342712B1
KR100342712B1 KR1020000026215A KR20000026215A KR100342712B1 KR 100342712 B1 KR100342712 B1 KR 100342712B1 KR 1020000026215 A KR1020000026215 A KR 1020000026215A KR 20000026215 A KR20000026215 A KR 20000026215A KR 100342712 B1 KR100342712 B1 KR 100342712B1
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KR
South Korea
Prior art keywords
row
cooling fins
heat exchanger
bent portion
bends
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KR1020000026215A
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Korean (ko)
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KR20010105610A (en
Inventor
최규상
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구자홍
엘지전자주식회사
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Publication of KR100342712B1 publication Critical patent/KR100342712B1/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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/124—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and being formed of pins
    • 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
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/28—Safety or protection arrangements; Arrangements for preventing malfunction for preventing noise

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

Abstract

본 발명은 열 교환기에 관한 것으로서, 복수개의 냉매관으로 구성된 2열 이상의 각 열에 단독적으로 냉각 핀이 설치되고, 굴곡부를 갖는 열 교환기에 있어서,The present invention relates to a heat exchanger, wherein a cooling fin is independently provided in each row of two or more rows composed of a plurality of refrigerant pipes,

상기 각 열에 설치된 냉각 핀들이 서로 일치하도록 한 것을 특징으로 한다.It is characterized in that the cooling fins installed in each row to match each other.

또한 상기와 같은 본 발명에 의하면, 냉각 핀이 열 간에 서로 엇갈리게 되어 유효한 유로 단면적이 감소되는 것을 방지하여 유동 저항을 감소시키고, 송풍 소음을 감소시킬 수 있는 효과가 있다.In addition, according to the present invention as described above, the cooling fins are staggered from one another to prevent the effective flow path cross-sectional area is reduced, thereby reducing the flow resistance, and has the effect of reducing the blowing noise.

Description

열 교환기{ Heat exchanger }Heat exchanger

본 발명은 열 교환기에 관한 것으로서, 특히 굴곡부가 있으며 2열 이상으로 구성된 열 교환기에 있어서 굴곡부로 인하여 냉각 핀이 서로 엇갈리게 설치되어 유동 저항이 증가하여 송풍 소음이 증가되는 것을 방지할 수 있는 열 교환기에 관한 것이다.The present invention relates to a heat exchanger, and more particularly, in a heat exchanger having a bent portion and having two or more rows, in the heat exchanger, in which the cooling fins are alternately installed due to the bent portion, thereby increasing flow resistance to prevent an increase in blowing noise. It is about.

도 1은 일반적인 2열 "ㄱ"자 열 교환기의 구조를 보여주는 사시도 이다.1 is a perspective view showing the structure of a typical two-row "a" heat exchanger.

도 1을 참조하면, 일반적인 2열 "ㄱ"자형 열 교환기는 냉매가 흐르는 냉매관(101), 발생된 열을 공기 중으로 방열시키기 위한 냉각핀(102)과 이들을 고정하기 위한 고정판(103)으로 구성된다.Referring to Figure 1, the general two-row "a" shaped heat exchanger is composed of a refrigerant pipe (101) through which the refrigerant flows, a cooling fin (102) for radiating the generated heat into the air and a fixing plate (103) for fixing them do.

상기와 같이 2열 "ㄱ"자 형태의 굴곡부를 갖는 에어컨 실외기의 열 교환기는 여러 개의 냉매관(101)이 직관으로서 앞열(104), 뒷열(105)로 구성된 것에 냉각핀(102)들을 끼우고 이들을 원하는 열만큼 겹친 후 그 전체를 구부려서 "ㄱ"자 형태로 만들어진다.As described above, the heat exchanger of the air conditioner outdoor unit having a two-row “a” shaped bend inserts the cooling fins 102 into a plurality of refrigerant pipes 101 formed of a front row 104 and a rear row 105 as straight pipes. Overlap them as many as you want, then bend them all up into a "a" shape.

이때 냉각핀(102)은 각 열마다 동일한 간격으로 끼워지게 되며, 구부리는 반경이나 구부리는 각도도 일정한 규칙이 없이 에어컨 실외기 구조에 맞추어 구부리게 된다.At this time, the cooling fins 102 are inserted at equal intervals in each row, and the bending radius and the bending angle are also bent in accordance with the air conditioner outdoor unit structure without a certain rule.

도 2는 종래의 2열 "ㄱ"자형 열 교환기의 열 간 냉각 핀들의 배치 구조를 보여주는 도면이다.Figure 2 is a view showing the arrangement of the thermal cooling fins of the conventional two-row "a" shaped heat exchanger.

도 2a는 도 1의 "가"부분을 보여주기 위한 평면도이고, 도 2b는 도 1의 "나"부분을 보여주기 위한 평면도이며, 도 2c는 도 1의 "다" 부분을 보여주기 위한 평면도이다.FIG. 2A is a plan view illustrating the "a" portion of FIG. 1, FIG. 2B is a plan view illustrating the "I" portion of FIG. 1, and FIG. 2C is a plan view illustrating the "multi" portion of FIG. 1. .

도 2a 내지 2c에서 보는 바와 같이 냉매관(201)들의 굴곡부의 앞열(104)과 뒷열(105) 반경이 서로 다르기 때문에 굴곡부 이전 부분(가 부분)은 앞열(104)과 뒷열(105)의 냉각 핀이 서로 엇갈리지 않으나, 굴곡부(나 부분) 및 굴곡부가 끝나는 지점(다 부분)의 냉각 핀들은 서로 엇갈리게 된다.As shown in FIGS. 2A to 2C, since the radii of the front row 104 and the rear row 105 of the bent portions of the refrigerant pipes 201 are different from each other, the cooling part of the front row 104 and the rear row 105 is the front row 104. These are not staggered, but the cooling fins at the bend (or part) and the end of the bend (multipart) are staggered.

상기와 같이 열 간에 냉각 핀들이 서로 엇갈리게 되면 유로가 좁아지게 되어유동 저항이 증가하게 된다. 또한 유동 저항, 즉 압력 강하량은 공기 통로의 단면적에 제곱으로 증가하고, 송풍 소음은 압력 강하량에 다음 수학식 1과 같은 관계를 갖는다.As described above, when the cooling fins cross each other, the flow path is narrowed and flow resistance is increased. In addition, the flow resistance, that is, the pressure drop amount increases with the square of the cross-sectional area of the air passage, and the blowing noise has a relationship as shown in the following equation (1) to the pressure drop amount.

송풍 소음 ∝ 20 log(압력 강하량)Blowing noise ∝ 20 log (pressure drop)

상기 수학식 1과 같이 송풍 소음이 불필요하게 증가하게 되는 문제점이 있다.As shown in Equation 1, there is a problem in that the blowing noise is increased unnecessarily.

본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위해 창출된 것으로서, 굴곡부가 있으며 2열 이상으로 구성된 열 교환기에 있어서 굴곡부로 인하여 냉각 핀이 서로 엇갈리게 설치되어 유동 저항이 증가하여 송풍 소음이 증가되는 것을 방지할 수 있는 열 교환기를 제공함에 그 목적이 있다.The present invention was created to solve the problems of the prior art as described above, in the heat exchanger having a bent portion and two or more rows, the cooling fins are alternately installed due to the bent portion, so that the flow resistance is increased and the blowing noise is increased. It is an object of the present invention to provide a heat exchanger which can be prevented.

도 1은 일반적인 2열 "ㄱ"자형 열 교환기의 구조를 보여주는 사시도.1 is a perspective view showing the structure of a typical two-row "a" shaped heat exchanger.

도 2a 내지 2c는 종래의 2열 "ㄱ"자형 열 교환기의 열 간 냉각 핀들의 배치 구조를 보여주는 도면.2a to 2c show the arrangement of the thermal cooling fins of a conventional two row “a” shaped heat exchanger;

도 3a 내지 3c는 본 발명의 2열 "ㄱ"자형 열 교환기의 열 간 냉각 핀들의 배치 구조를 보여주는 도면3a to 3c show the arrangement of the intercooling fins of a two row “a” shaped heat exchanger of the invention;

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

101, 201, 301 ... 냉매관 102, 202, 302 ... 냉각핀101, 201, 301 ... refrigerant line 102, 202, 302 ... cooling fin

103 ... 고정판103 ... fixing plate

상기와 같은 목적을 달성하기 위한 본 발명의 열 교환기는,Heat exchanger of the present invention for achieving the above object,

복수개의 냉매관으로 구성된 2열 이상의 각 열에 단독적으로 냉각 핀이 설치되고, 굴곡부를 갖는 열 교환기에 있어서,In a heat exchanger having a bent portion, in which a cooling fin is independently provided in each of two or more rows composed of a plurality of refrigerant pipes,

상기 각 열에 설치된 냉각 핀들이 서로 일치하도록 한 것을 특징으로 하는 열 교환기.And the cooling fins installed in each of the rows coincide with each other.

바람직하게는, 상기 각 열에 설치된 냉각 핀들이 상기 굴곡부 이후에서 서로 일치하기 위해 상기 각 열에서 굴곡부의 길이를 그 굴곡부에서의 냉각 핀의 간격으로 나눈 나머지가 서로 같아지도록 굴곡부의 반경과 굴곡 각도를 결정하는 것을 특징으로 한다.Preferably, the radius of the bend and the angle of the bend are determined such that the cooling fins installed in each row coincide with each other after the bend so that the remainder obtained by dividing the length of the bend in each row by the interval of the cooling fins in the bend is equal to each other. Characterized in that.

더 바람직하게는, 상기 각 열에 설치된 냉각 핀들이 상기 굴곡부에서 서로 일치하기 위해 상기 각 열에서 굴곡부의 길이를 그 굴곡부에서의 냉각 핀의 간격으로 나눈 값이 서로 같아지도록 굴곡부의 반경과 굴곡 각도를 결정하는 것을 특징으로 한다.More preferably, in order that the cooling fins installed in each row coincide with each other in the bends, the radius and the bend angle of the bends are determined such that the lengths of the bends in each row are equal to each other by the interval of the cooling fins in the bends. Characterized in that.

도 3a 내지 3b는 본 발명의 2열 "ㄱ"자형 열 교환기의 열 간 냉각 핀들의 배치 구조를 보여주는 도면이다.Figures 3a to 3b is a view showing the arrangement of the thermal cooling fins of the two-row "a" shaped heat exchanger of the present invention.

도 3a 내지 3c에서 보는 바와 같이 각 열의 냉매관(301)에 구성된 냉각핀(302)들이 서로 일치되는 것을 볼 수가 있다.As shown in FIGS. 3A to 3C, it can be seen that the cooling fins 302 formed in the refrigerant pipes 301 of each row coincide with each other.

종래의 문제점에서 언급한 바와 같은 굴곡부 이후 부분에 대해서 냉각핀(302)들이 엇갈리던 것을 서로 일치시키기 위해서는 다음과 같은 수학식을 만족하도록 한다.In order to match the stagger of the cooling fins 302 with respect to the portion after the bent portion as mentioned in the conventional problem, the following equation is satisfied.

상기 수학식 2에서는 i 열의 냉각 핀의 간격,는 i 열의 굴곡 반경,는 굴곡 각도를 나타내며,는 j 열의 냉각 핀의 간격,는 i 열의 굴곡 반경을 나타낸다.In Equation 2 The thickness of the cooling fins of the i row, Is the bend radius of column i, Represents the bend angle, The spacing of the cooling fins of column j, Denotes the bending radius of column i.

즉, 각 열의 굴곡부 이후 부분에서 냉각 핀이 각 열간에 서로 어긋나는 것을방지하기 위해서는 각 열에서 굴곡부의 길이를 그 굴곡부에서의 냉각 핀의 간격으로 나눈 나머지가 서로 같아지도록 굴곡부의 반경()과 굴곡 각도()를 상기 수학식 2와 같이 결정하면 된다.That is, in order to prevent the cooling fins from deviating from each other in each row after the bent portion of each row, the radius of the bent portion may be equal to each other so that the remainder obtained by dividing the length of the bent in each row by the interval of the cooling fins in the bent portion is equal to each other. ) And bend angle ( ) May be determined as in Equation 2 above.

또한, 각 열의 냉매관(301)에 구성된 냉각 핀들이 굴곡부에서도 일치하기 위해서는 다음과 같은 수학식을 만족하도록 한다.In addition, in order for the cooling fins formed in the coolant pipes 301 of each row to match the curved portions, the following equations are satisfied.

상기 수학식 3에서는 i 열의 냉각 핀의 간격,는 i 열의 굴곡 반경,는 굴곡 각도를 나타내며,는 j 열의 냉각 핀의 간격,는 i 열의 굴곡 반경을 나타낸다.In Equation 3 The thickness of the cooling fins of the i row, Is the bend radius of column i, Represents the bend angle, The spacing of the cooling fins of column j, Denotes the bending radius of column i.

상기에서 설명한 바와 본 발명에 의하면, 냉각 핀이 열 간에 서로 엇갈리게 되어 유효한 유로 단면적이 감소되는 것을 방지하여 유동 저항을 감소시키고, 송풍 소음을 감소시킬 수 있는 효과가 있다.According to the present invention as described above, it is possible to prevent the cooling fins from being staggered from one another to reduce the effective passage cross-sectional area, thereby reducing the flow resistance and reducing the blowing noise.

Claims (3)

복수개의 냉매관으로 구성된 2열 이상의 각 열에 단독적으로 냉각 핀이 설치되고, 굴곡부를 갖는 열 교환기에 있어서,In a heat exchanger having a bent portion, in which a cooling fin is independently provided in each of two or more rows composed of a plurality of refrigerant pipes, 상기 각 열에 설치된 냉각 핀들이 서로 일치하도록 한 것을 특징으로 하는 열 교환기.And the cooling fins installed in each of the rows coincide with each other. 제 1항에 있어서,The method of claim 1, 상기 각 열에 설치된 냉각 핀들이 상기 굴곡부 이후에서 서로 일치하기 위해 상기 각 열에서 굴곡부의 길이를 그 굴곡부에서의 냉각 핀의 간격으로 나눈 나머지가 서로 같아지도록 굴곡부의 반경과 굴곡 각도를 결정하는 것을 특징으로 하는 열 교환기.In order to coincide with each other after the bent portion of the cooling fins installed in each row, the radius and the bend angle of the bent portion are determined such that the remainder obtained by dividing the length of the bent portion in each row by the interval of the cooling fins in the bent portion is equal to each other. Heat exchanger. 제 1항에 있어서,The method of claim 1, 상기 각 열에 설치된 냉각 핀들이 상기 굴곡부에서 서로 일치하기 위해 상기 각 열에서 굴곡부의 길이를 그 굴곡부에서의 냉각 핀의 간격으로 나눈 값이 서로 같아지도록 굴곡부의 반경과 굴곡 각도를 결정하는 것을 특징으로 하는 열 교환기.In order that the cooling fins installed in each row coincide with each other in the bends, the radius and the bend angle of the bends are determined so that the value obtained by dividing the lengths of the bends in each row by the interval of the cooling fins in the bends is equal to each other. heat transmitter.
KR1020000026215A 2000-05-16 2000-05-16 Heat exchanger KR100342712B1 (en)

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US20090148370A1 (en) * 2007-12-06 2009-06-11 Spencer Iii Herbert W Process to produce ammonia from urea
KR101401421B1 (en) * 2012-03-06 2014-07-01 한국에너지기술연구원 The Method of the Simultaneous Removal of NOx and N2O by the Multi Stage Reactions in Fluidized Bed Combustor
JP5640120B1 (en) * 2013-07-04 2014-12-10 コリア インスティテュート オブ エナジー リサーチＫｏｒｅａ Ｉｎｓｔｉｔｕｔｅ Ｏｆ Ｅｎｅｒｇｙ Ｒｅｓｅａｒｃｈ Simultaneous reduction method of nitrogen oxide and nitrous oxide by multistage reaction in fluidized bed combustion furnace

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