KR100941301B1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
KR100941301B1
KR100941301B1 KR1020070058928A KR20070058928A KR100941301B1 KR 100941301 B1 KR100941301 B1 KR 100941301B1 KR 1020070058928 A KR1020070058928 A KR 1020070058928A KR 20070058928 A KR20070058928 A KR 20070058928A KR 100941301 B1 KR100941301 B1 KR 100941301B1
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South Korea
Prior art keywords
heat exchange
heating water
pipe
exchange pipe
heat exchanger
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KR1020070058928A
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Korean (ko)
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KR20080110322A (en
Inventor
민태식
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주식회사 경동나비엔
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Priority to KR1020070058928A priority Critical patent/KR100941301B1/en
Priority to JP2010512059A priority patent/JP2010530054A/en
Priority to CN2008800204124A priority patent/CN101711339B/en
Priority to US12/664,818 priority patent/US20100175860A1/en
Priority to EP08753222.2A priority patent/EP2162695A4/en
Priority to PCT/KR2008/002418 priority patent/WO2008153273A1/en
Publication of KR20080110322A publication Critical patent/KR20080110322A/en
Application granted granted Critical
Publication of KR100941301B1 publication Critical patent/KR100941301B1/en
Priority to US13/654,475 priority patent/US20130062043A1/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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • F28D7/1692—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0081—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by a single plate-like element ; the conduits for one heat-exchange medium being integrated in one single plate-like element
    • 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
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements

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

Abstract

본 발명은 보일러에 적용되는 열교환기에 관한 것으로, 열교환배관을 통과하는 난방수의 유로를 길게 형성하면서도 열교환배관 사이의 간격을 좁혀 열전달효율을 향상시킬 수 있으며 제작이 간단한 열교환기를 제공하고자 함에 그 목적이 있다.The present invention relates to a heat exchanger applied to the boiler, while forming a long passage of the heating water passing through the heat exchange pipe while narrowing the distance between the heat exchange pipe to improve the heat transfer efficiency and to provide a heat exchanger with a simple manufacturing have.

이를 구현하기 위한 본 발명은, 난방수유입구와 난방수유출구 사이에 설치되어 난방수가 내부를 통과하고 연소가스와 접촉되는 변의 폭이 높이에 비해 큰 장방형의 단면을 가진 배관으로 이루어진 복수의 열교환배관부가 일정한 간격 이격되어 설치되는 열교환부; 상기 복수의 열교환배관부 사이의 간격을 일정하게 유지하기 위해 상기 열교환배관부 양측 끝단이 결합되는 제1보조판과 제2보조판; 상기 제1보조판과 제2보조판의 외측으로 각각 결합되는 제1엔드플레이트와 제2엔드플레이트;로 이루어진다.The present invention for realizing this, the plurality of heat exchange pipe portion is provided between the heating water inlet and the heating water outlet is formed of a pipe having a rectangular cross section of the width of the side that the heating water passes through the inside and the contact with the combustion gas is higher than the height Heat exchanger spaced apart at regular intervals; A first auxiliary plate and a second auxiliary plate to which both ends of the heat exchange pipe part are coupled to maintain a constant distance between the plurality of heat exchange pipe parts; And a first end plate and a second end plate coupled to the outside of the first auxiliary plate and the second auxiliary plate, respectively.

보일러, 열교환, 난방수, 보조판, 엔드플레이트 Boiler, Heat Exchanger, Heating Water, Auxiliary Board, End Plate

Description

열교환기{HEAT EXCHANGER}Heat exchanger {HEAT EXCHANGER}

도 1은 종래의 열교환기의 구조를 보여주는 정면개략도,1 is a front schematic view showing the structure of a conventional heat exchanger,

도 2(a)는 도 1의 A-A부 상세단면도,Figure 2 (a) is a detailed cross-sectional view of the A-A section of FIG.

도 2(b)는 도 1의 B-B부 상세단면도,Figure 2 (b) is a detailed cross-sectional view of the B-B section of FIG.

도 3은 본 발명의 일실시예에 의한 열교환기를 보여주는 결합사시도, 3 is a perspective view showing a heat exchanger according to an embodiment of the present invention;

도 4는 도 3의 열교환기에 대한 분해사시도, Figure 4 is an exploded perspective view of the heat exchanger of Figure 3,

도 5는 도 3의 열교환기에 대한 난방수 유로를 보여주는 단면도,5 is a cross-sectional view showing a heating water passage for the heat exchanger of FIG.

도 6은 본 발명의 다른 실시예에 의한 열교환기를 보여주는 결합사시도,6 is a perspective view showing a heat exchanger according to another embodiment of the present invention;

도 7은 도 6의 열교환기에 대한 난방수 유로를 보여주는 단면도,7 is a cross-sectional view showing a heating water flow path for the heat exchanger of FIG. 6;

도 8은 본 발명의 다른 실시예에 의한 열교환배관을 보여주는 단면도,8 is a cross-sectional view showing a heat exchange pipe according to another embodiment of the present invention;

도 9는 본 발명의 다른 실시예에 의한 열교환배관을 보여주는 단면도.9 is a cross-sectional view showing a heat exchange pipe according to another embodiment of the present invention.

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

110,410 : 제1엔드플레이트 120,420 : 난방수유입구110,410: 1st end plate 120,420: heating water inlet

130,430 : 제1보조판 200,500 : 열교환부130,430: first auxiliary plate 200,500: heat exchanger

210,510 : 제1열교환배관부 220,520 : 제2열교환배관부210,510: First heat exchange pipe part 220,520: Second heat exchange pipe part

230,530 : 제3열교환배관부 310,610 : 제2엔드플레이트230,530: 3rd heat exchange piping 310,610: second end plate

320,620 : 난방수유출구 330,630 : 제2보조판320,620: Heating water outlet 330,630: 2nd auxiliary plate

본 발명은 보일러에 적용되는 열교환기에 관한 것으로, 보다 상세하게는 열교환배관 내부를 통과하는 난방수와 배기가스와의 열전달이 효율적으로 이루어질 수 있는 열교환기에 관한 것이다.The present invention relates to a heat exchanger applied to the boiler, and more particularly to a heat exchanger that can be efficiently carried out the heat transfer of the heating water and the exhaust gas passing through the heat exchange pipe.

주지하는 바와 같이 연소실 내에서 열교환배관 내부를 따라 흐르는 난방수를 버너를 이용하여 가열할 수 있는 구성을 가진 연소기기에는 크게 보일러와 온수기 등을 들 수 있다.As is well known, a combustion apparatus having a configuration capable of heating a heating water flowing along an inside of a heat exchange pipe in a combustion chamber by using a burner may include a boiler and a water heater.

즉, 일반 가정이나 공공건물 등에 사용되는 보일러는 난방용이나 온수용으로 이용되고, 온수기는 냉수를 단시간 내에 소정의 온도로 가열하여 사용자가 편리하게 온수를 사용할 수 있도록 하는 것이다.That is, a boiler used in a general home or a public building is used for heating or hot water, and a water heater heats cold water to a predetermined temperature within a short time so that a user can conveniently use hot water.

이러한 보일러 및 온수기와 같은 연소기기는 대부분 기름 혹은 가스를 연료로 사용하여 버너를 통해 연소시킨 다음, 이 연소과정에서 발생하는 연소열을 이용하여 물을 가열하고, 이 가열된 물(온수)을 사용자의 필요에 따라 제공할 수 있는 시스템을 가지고 있다.Most combustors such as boilers and water heaters use oil or gas as fuel to combust through a burner, and then heat water using combustion heat generated during the combustion process, and the heated water (hot water) I have a system that can provide it as needed.

상기와 같은 연소기기에는 버너로부터 발생한 연소열을 흡수하기 위하여 열교환기가 구비되어 있는데, 종래부터 열교환기의 열전달효율을 향상시키기 위한 다양한 방법들이 제안되어 왔다.Such a combustion apparatus is provided with a heat exchanger to absorb the heat of combustion generated from the burner, and various methods have been proposed for improving the heat transfer efficiency of the heat exchanger.

도 1은 종래의 열교환기의 구조를 보여주는 정면개략도, 도 2(a)는 도 1의 A-A부 상세단면도, 도 2(b)는 도 1의 B-B부 상세단면도이다.Figure 1 is a front schematic view showing the structure of a conventional heat exchanger, Figure 2 (a) is a detailed cross-sectional view of the A-A section of Figure 1, Figure 2 (b) is a detailed cross-sectional view of the B-B section of FIG.

도 1, 도 2를 참조하면, 열교환기(1)는 난방수가 유입되는 난방수유입구(10), 상기 난방수유입구(10)로부터 유입된 난방수가 내부를 통과하며 표면에서 연소가스와 접촉되어 열전달이 이루어지는 다수의 열교환배관(21,22,23,24,25)으로 이루어진 열교환부(20), 상기 열교환배관(21,22,23,24,25)을 통과하면서 가열된 난방수가 유출되는 난방수유출구(30)로 이루어진다. Referring to FIGS. 1 and 2, the heat exchanger 1 has a heating water inlet 10 through which heating water is introduced, and heating water introduced from the heating water inlet 10 passes through the inside and is in contact with the combustion gas on the surface to transfer heat. The heat-exchanging part 20 which consists of a plurality of heat exchange pipes 21, 22, 23, 24, and 25, and the heating and feeding water which flows out the heated heating water while passing through the heat exchange pipes 21, 22, 23, 24, and 25. It consists of an outlet 30.

상기 난방수유입구(10)와 열교환배관(21,22,23,24,25) 및 난방수유출구(30)와 열교환배관(21,22,23,24,25)은 배관연결부(11,31)를 통해 각각 연결되어 있다.The heating water inlet 10 and the heat exchange pipes (21, 22, 23, 24, 25) and the heating water outlet 30 and the heat exchange pipes (21, 22, 23, 24, 25) are pipe connections (11, 31) Each is connected via

상기 열교환배관(21,22,23,24,25)의 단면은 연소가스가 통과하는 길이방향으로 폭이 넓고 높이가 낮은 대략 직사각형의 단면을 하고 있고, 각각의 열교환배관(21,22,23,24,25) 사이는 소정의 간격으로 이격되어 있어 그 사이로 연소가스가 통과하면서 열전달이 이루어진다.The cross section of the heat exchange pipes 21, 22, 23, 24, 25 has a substantially rectangular cross section having a wide width and a low height in the longitudinal direction through which the combustion gas passes, and each of the heat exchange pipes 21, 22, 23, 24 and 25 are spaced apart at predetermined intervals so that the heat transfer is achieved while the combustion gas passes therebetween.

상기 열교환배관(21,22,23,24,25)은 각각 상판(21a,22a,23a,24a,25a)과 하판(21b,22b,23b,24b,25b)으로 나뉘어져 있고, 상판(21a,22a,23a,24a,25a)과 하판(21b,22b,23b,24b,25b)은 양 측단의 플랜지부에서 용접결합된다.The heat exchange pipes 21, 22, 23, 24, and 25 are divided into upper plates 21a, 22a, 23a, 24a, and 25a and lower plates 21b, 22b, 23b, 24b and 25b, respectively, and upper plates 21a and 22a. And 23a, 24a and 25a and lower plates 21b, 22b, 23b, 24b and 25b are welded at flange portions at both ends.

또한 상기 열교환배관(21,22,23,24,25) 사이를 연결하는 배관연결부(31)는 측방향으로 절곡형성된 플랜지부가 형성되어 용접결합되는 제1연결부재(31a)와 제2연결부재(31b)로 이루어져 있다(난방수 입구측의 배관연결부(11)도 동일한 구조).In addition, the pipe connection portion 31 connecting the heat exchange pipes 21, 22, 23, 24, 25 is formed with a flange portion bent in the lateral direction is formed by the first connecting member 31a and the second connecting member ( 31b) (the piping connection part 11 of a heating water inlet side is the same structure).

그러나 상기와 같은 구조의 열교환기는 상판과 하판으로 이루어지는 열교환배관 및 제1연결부재/제2연결부재로 이루어지는 구조의 특성상 열교환배관 사이의 간격이 커서 열전달 효율이 떨어지는 단점이 있으며, 제조가 복잡하고 어려워 실제 보일러에 적용하기에는 어려운 문제점이 있다.However, the heat exchanger having the above structure has a disadvantage in that the heat transfer efficiency is inferior due to the large gap between the heat exchange pipes due to the characteristics of the heat exchange pipe consisting of the upper plate and the lower plate and the first connection member / the second connection member. There is a problem that is difficult to apply to the actual boiler.

본 발명은 상술한 문제점을 해결하고자 안출된 것으로, 열교환배관을 통과하는 난방수의 유로를 길게 형성하면서도 열교환배관 사이의 간격을 좁혀 열전달효율을 향상시킬 수 있으며 제작이 간단한 열교환기를 제공하고자 함에 그 목적이 있다.The present invention has been made to solve the above problems, while forming a long flow path of the heating water passing through the heat exchange pipe while narrowing the distance between the heat exchange pipes to improve the heat transfer efficiency and to provide a heat exchanger simple to manufacture its purpose There is this.

상술한 바와 같은 목적을 구현하기 위한 본 발명의 열교환기는, 난방수유입구와 난방수유출구 사이에 설치되어 난방수가 내부를 통과하고 연소가스와 접촉되는 변의 폭이 높이에 비해 큰 장방형의 단면을 가진 배관으로 이루어진 복수의 열교환배관부가 일정한 간격 이격되어 설치되는 열교환부; 상기 복수의 열교환배관부 사이의 간격을 일정하게 유지하기 위해 상기 열교환배관부 양측 끝단이 결합되는 제1보조판과 제2보조판; 상기 제1보조판과 제2보조판의 외측으로 각각 결합되는 제1엔드플레이트와 제2엔드플레이트; 로 이루어진다.Heat exchanger of the present invention for realizing the object as described above, is installed between the heating water inlet and the heating water outlet, the pipe having a rectangular cross-section with a larger width than the height of the side where the heating water passes through the contact with the combustion gas A plurality of heat exchange parts formed of spaced apart at regular intervals; A first auxiliary plate and a second auxiliary plate to which both ends of the heat exchange pipe part are coupled to maintain a constant distance between the plurality of heat exchange pipe parts; First and second end plates coupled to the outer side of the first and second subsidiary plates, respectively; Is made of.

이 경우 상기 제1보조판과 제2보조판에는 상하 일정간격으로 배관삽입구멍이 형성되고; 상기 배관삽입구멍에는 상기 복수의 열교환배관부 양측끝단이 끼워지며; 상기 열교환배관부 양측끝단과 제1,2보조판 및 제1,2엔드플레이트는 각각 브레이징 용접되는 것;으로 구성될 수 있다.In this case, pipe insertion holes are formed in the first auxiliary plate and the second auxiliary plate at regular intervals up and down; Both ends of the plurality of heat exchange pipes are fitted into the pipe insertion holes; Both ends of the heat exchange pipe and the first and second subsidiary plates and the first and second end plates may be brazed welded, respectively.

또한 상기 복수의 열교환배관부는, 일측 끝단의 열교환배관부로부터 유입된 난방수가 타측 끝단의 열교환배관부에 이르기까지 흐름 방향이 서로 반대방향으로 엇갈리면서 직렬유로를 형성하는 것이 바람직하다.In addition, the plurality of heat exchange pipe parts, it is preferable to form a series flow path while the flow direction is crossed in the opposite direction from the heating water introduced from the heat exchange pipe portion at one end to the heat exchange pipe portion at the other end.

여기서 상기 난방수유입구는 제1엔드플레이트에 형성되고, 상기 난방수유출구는 제2엔드플레이트에 형성된 것으로 구성될 수 있다.The heating water inlet may be formed in the first end plate, and the heating water inlet may be formed in the second end plate.

또한 상기 난방수유입구는 난방수가 유입되는 측의 열교환배관 외측면에 형성되고, 상기 난방수유출구는 난방수가 유출되는 측의 열교환배관 외측면에 형성되는 것으로 구성될 수 있다.In addition, the heating water inlet may be formed on the outer surface of the heat exchange pipe on the side of the heating water inlet, the heating water outlet may be formed on the outer surface of the heat exchange pipe on the side of the heating water flows out.

한편 상기 복수의 열교환배관은, 연소가스가 통과하는 입구측의 열교환배관 사이 간격이 넓고 연소가스가 통과하는 출구측 열교환배관 사이 간격이 좁아지도록 단면이 형성되는 것이 바람직하다.On the other hand, the plurality of heat exchange pipes, it is preferable that the cross section is formed so that the interval between the heat exchange pipes on the inlet side through which the combustion gas passes and the space between the outlet heat exchange pipes through which the combustion gas passes.

이하 첨부한 도면을 참조하여 본 발명의 바람직한 실시예에 대한 구성 및 작용을 상세히 설명하면 다음과 같다.Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 일실시예에 의한 열교환기를 보여주는 결합사시도, 도 4는 도 3의 열교환기에 대한 분해사시도, 도 5는 도 3의 열교환기에 대한 난방수 유로를 보여주는 단면도이다.3 is a perspective view showing a heat exchanger according to an embodiment of the present invention, Figure 4 is an exploded perspective view of the heat exchanger of Figure 3, Figure 5 is a cross-sectional view showing a heating water passage for the heat exchanger of FIG.

본 실시예는, 난방수가 유입되는 입구측에는 난방수유입구(120)가 형성된 제1엔드플레이트(110), 상기 제1엔드플레이트(110)의 내측에 결합되는 제1보조판(130), 상기 난방수유입구(120)를 통해 유입되는 난방수가 내부를 통과하면서 연소가스와의 열교환이 이루어질 수 있도록 복수의 열교환배관부(210,220,230)로 이루어진 열교환부(200), 상기 열교환부(200)에서 가열된 난방수가 유출되는 난방수 유출구(320)가 형성된 제2엔드플레이트(310), 상기 제2엔드플레이트(310)의 내측과 열교환부(200) 사이에 결합되는 제2보조판(330)으로 이루어진다.The present embodiment, the first end plate 110, the first auxiliary plate 130 is coupled to the inner side of the first end plate 110, the heating water inlet 120 is formed on the inlet side of the heating water inlet, the heating feeding Heat exchanger 200 consisting of a plurality of heat exchange pipes 210, 220, 230, and the heating water heated in the heat exchanger 200 so that the heating water introduced through the inlet 120 may pass through the heat exchange with the combustion gas. The second end plate 310 is formed with a heating water outlet 320 is discharged, the second auxiliary plate 330 is coupled between the inside of the second end plate 310 and the heat exchange unit 200.

상기 제1엔드플레이트(110)는 상기 열교환부(200)의 열교환배관 일측 끝단을 폐쇄하기 위한 평판부(110a)와 상기 평판부(110a)의 하측 끝단에서 절곡형성되어 난방수를 유입시키기 위한 절곡부(110b)로 이루어진다. 상기 절곡부(110b)에는 난방수유입구(120)가 형성되어 있다.The first end plate 110 is bent at the lower end of the plate portion 110a and the lower portion of the plate portion 110a for closing one end of the heat exchange pipe of the heat exchanger 200 and bent to introduce heating water. It consists of a part (110b). The bent portion (110b) is formed with a heating water inlet 120.

상기 제1보조판(130)과 제2보조판(330)에는 상기 열교환배관부(210,220,230)의 배관 양끝단이 삽입될 수 있도록 복수의 배관삽입구멍(130a,330a)이 상하 일정한 간격으로 각각 형성되어 있다. The first subsidiary plate 130 and the second subsidiary plate 330 are formed with a plurality of pipe insertion holes 130a and 330a at regular intervals up and down so that both ends of the pipes of the heat exchange pipes 210, 220 and 230 can be inserted. .

상기 열교환부(200)의 각 열교환배관 사이는 일정 간격 이격되어 연소가스가 통과할 수 있도록 연소가스 통과 경로(201)가 형성되어 있다.The combustion gas passage path 201 is formed between the heat exchange pipes of the heat exchange part 200 so as to allow the combustion gas to pass through a predetermined interval.

본 실시예에서 상기 열교환배관은 연소가스와의 접촉면적을 넓게 하기 위해 단면이 직사각형인 것으로 구성하였다. 그러나 단면의 형상은 이에 한하지 않고 연소가스와 접촉되는 변의 폭이 높이에 비해 큰 장방형이면 어떤 형상이든 적용가능하다. 일례로 직사각형의 모서리가 라운드(R) 형상으로 구성될 수도 있다.In this embodiment, the heat exchange pipe was configured to have a rectangular cross section in order to widen the contact area with the combustion gas. However, the shape of the cross section is not limited to this, and any shape may be applied as long as the width of the side contacting the combustion gas is larger than the height. For example, the corners of the rectangle may have a round (R) shape.

상기 열교환부(200)는 일측 끝단에 연결된 난방수유입구(120)를 통해 유입된 난방수가 통과하는 제1열교환배관부(210)가 구비된다. The heat exchange part 200 is provided with a first heat exchange pipe part 210 through which the heating water introduced through the heating water inlet 120 connected to one end thereof passes.

상기 제1열교환배관부(210)는 2개의 열교환배관(211,212)이 일측으로는 상기 제1보조판(130)의 배관삽입구멍(130a)에 삽입되고 타측으로는 제2보조판(330)의 배관삽입구멍(330a)에 삽입된다. In the first heat exchange pipe part 210, two heat exchange pipes 211 and 212 may be inserted into a pipe insertion hole 130a of the first subsidiary plate 130 on one side and a pipe insertion of the second subsidiary plate 330 on the other side. It is inserted into the hole 330a.

상기 2개의 열교환배관(211,212)은 그 사이로 연소가스가 통과할 수 있도록 일정한 간격 이격되어 설치된다. The two heat exchange pipes 211 and 212 are installed at regular intervals so as to allow combustion gas to pass therebetween.

이 경우 상기 열교환배관(211)은 넓은 금속판을 단면이 사각이 되도록 절곡형성시킨 후 측단으로 돌출된 플랜지부(211f)는 코킹(Caulking)처리하고, 브레이징 용접으로 결합시키게 된다.In this case, the heat exchange pipe 211 is formed by bending a wide metal plate so that the cross section is square, and then the flange portion 211f protruding to the side end is caulked and joined by brazing welding.

상기 열교환배관(211)의 플랜지부(211f)가 삽입될 수 있도록 제1보조판(130)과 제2보조판(330)의 배관삽입구멍(130a,330a)에는 플랜지삽입홈(130b,330b)이 형성되어 있다.Flange insertion grooves 130b and 330b are formed in the pipe insertion holes 130a and 330a of the first subsidiary plate 130 and the second subsidiary plate 330 so that the flange portion 211f of the heat exchange pipe 211 can be inserted therein. It is.

상기 돌출된 플랜지부(211f)를 별도 가공하여 제거한다면 상기 플랜지삽입홈(130b,330b)은 형성시킬 필요가 없다.If the protruding flange portion 211f is separately processed and removed, the flange insertion grooves 130b and 330b need not be formed.

상기 2개의 열교환배관(211,212)은 타측 끝단에 형성된 배관연결부(211a,212a)에서 연결되어 하측의 열교환배관(211) 내부의 난방수와 상측의 열교환배관(212) 내부의 난방수는 배관연결부(212b, 221a)를 통해 제2열교환배관부(220)로 이송된다. The two heat exchange pipes 211 and 212 are connected to the pipe connection parts 211a and 212a formed at the other end, so that the heating water inside the heat exchange pipe 211 at the lower side and the heating water inside the heat exchange pipe 212 at the upper side are connected to the pipe connection part ( 212b and 221a are transferred to the second heat exchange pipe part 220.

상기 배관연결부(211a,212a)는 열교환배관의 표면으로부터 돌출되어 용접결합되고, 이하 제2열교환배관부(220)와 제3열교환배관부(230)의 각 배관이 연결되는 배관연결부(221a,221b,221c,222a,222b,222c,231a,231b,232a)의 형상 및 결합방식도 동일하다.The pipe connection parts 211a and 212a protrude from the surface of the heat exchange pipe and are welded to each other, and the pipe connection parts 221a and 221b to which the respective pipes of the second heat exchange pipe part 220 and the third heat exchange pipe part 230 are connected. The shapes and coupling methods of 221c, 222a, 222b, 222c, 231a, 231b, and 232a are also the same.

이러한 구조에 의하면 상기 2개의 열교환배관(211,212) 사이의 간격을 좁게 형성하는 것이 가능하므로 열전달효율을 향상시킬 수 있고, 이하 제2열교환배관 부(220) 및 제3열교환배관부(230)도 동일한 구조로 이루어진다.According to such a structure, the gap between the two heat exchange pipes 211 and 212 can be formed to be narrow, thereby improving heat transfer efficiency, and the second heat exchange pipe part 220 and the third heat exchange pipe part 230 are also the same. Made of structure.

상기 제2열교환배관부(220)는 2개의 열교환배관(221,222)이 일측으로는 상기 제1보조판(130)의 배관삽입구멍(130a)에 삽입되고 타측으로는 제2보조판(330)의 배관삽입구멍(330a)에 삽입되어 일정한 간격을 유지하도록 설치된다. 상기 2개의 열교환배관(221,222)은 일측에 형성된 배관연결부(221b,222a)에서 연결되고, 제1열교환배관부(210)로부터 이송되어온 난방수가 2개의 열교환배관(221,222)으로 나뉘어져 좌측방향으로 이송되면서 연소가스와의 열교환이 이루어진 후 제3열교환배관부(230)로 이송된다.In the second heat exchange pipe part 220, two heat exchange pipes 221 and 222 are inserted into the pipe insertion hole 130a of the first auxiliary plate 130 on one side and pipe insertion of the second auxiliary plate 330 on the other side. It is inserted into the hole 330a and installed to maintain a constant gap. The two heat exchange pipes 221 and 222 are connected to the pipe connection parts 221b and 222a formed on one side, and the heating water transferred from the first heat exchange pipe part 210 is divided into two heat exchange pipes 221 and 222 and transferred to the left direction. After the heat exchange with the combustion gas is carried out is transferred to the third heat exchange pipe 230.

상기 제3열교환배관부(230)는 2개의 열교환배관(231,232)이 일측으로는 상기 제1보조판(130)의 배관삽입구멍에 삽입되고 타측으로는 제2보조판(330)의 배관삽입구멍에 삽입되어 일정한 간격을 유지하도록 설치된다. 상기 2개의 열교환배관(231,232)은 일측에 형성된 배관연결부(231b,232a)에서 연결되고, 제2열교환배관(220)로부터 이송되어온 난방수가 2개의 열교환배관(231,232)으로 나뉘어져 우측방향으로 이송되면서 연소가스와의 열교환이 이루어진 후 난방수유출구(320)를 통해 난방이 필요한 각 장소로 이송된다.The third heat exchange pipe part 230 has two heat exchange pipes 231 and 232 inserted into the pipe insertion hole of the first subsidiary plate 130 on one side and into the pipe insertion hole of the second subsidiary plate 330 on the other side. It is installed to maintain a constant interval. The two heat exchange pipes 231 and 232 are connected to the pipe connection parts 231b and 232a formed at one side, and the heating water transferred from the second heat exchange pipe 220 is divided into two heat exchange pipes 231 and 232 and is transferred to the right direction to burn. After the heat exchange with the gas is carried through the heating water outlet 320 is transferred to each place requiring heating.

상기 제2엔드플레이트(310)는 상기 제1열교환배관부(210)와 제2열교환배관부(220)의 배관 일측 끝단을 폐쇄하기 위한 평판부(310a)와 상기 평판부(310a)의 상측에서 절곡형성되어 난방수를 유출시키기 위한 절곡부(310b)로 이루어지고, 상기 절곡부(310b)에 난방수유출구(320)가 형성되어 있다.The second end plate 310 is disposed on the plate portion 310a and the plate portion 310a for closing one end of the pipes of the first heat exchange pipe portion 210 and the second heat exchange pipe portion 220. The bending portion is formed of a bent portion 310b for flowing out the heating water, and the heating water outlet 320 is formed at the bent portion 310b.

상기 제1보조판(130)과 제1엔드플레이트(110), 제2보조판(330)과 제2엔드플 레이트(310)에 열교환배관이 결합되는 방법에 대해 설명한다. The heat exchange pipe is coupled to the first subsidiary plate 130, the first end plate 110, the second subsidiary plate 330, and the second end plate 310.

각각의 열교환배관의 양측 끝단을 제1보조판(130)의 배관삽입구멍(130a)에 삽입하고, 그 외측으로 제1엔드플레이트(110)를 밀착시킨 후, 열교환배관과 제1보조판(130)의 배관삽입구멍(130a)이 접촉되는 부위(도 5의 확대도면 a부)와 제1보조판(130)과 제1엔드플레이트(110)이 접촉되는 부위(도 5의 확대도면 b부)에 각각 브레이징(Brazing) 용접을 하여 견고하게 결합시킨다.Insert both ends of each heat exchange pipe into the pipe insertion hole (130a) of the first auxiliary plate 130, close the first end plate 110 to the outside, and then close the heat exchange pipe and the first auxiliary plate 130 Brazing to the site (the enlarged drawing a part in FIG. 5) and the area where the first auxiliary plate 130 and the first end plate 110 contact the pipe insertion hole 130a (the enlarged drawing b part in FIG. 5), respectively. Brazing Weld tightly.

상기 제2보조판(330)과 제2엔드플레이트(310)에 열교환배관이 결합되는 방법도 동일하다.The same method as the heat exchange pipe is coupled to the second auxiliary plate 330 and the second end plate 310.

이와 같은 열교환기 구조에 의하면, 제1열교환배관부(210)를 통해 우측방향으로 이송된 난방수는 제2열교환배관부(220)와 제3열교환배관부(230)에서 각각 반대방향으로 재이송되면서 난방수가 통과하는 유로를 길게 형성시킬 수 있어 열전달효율을 향상시킬 수 있게 된다.According to the heat exchanger structure as described above, the heating water transferred to the right through the first heat exchange pipe 210 is re-transmitted in the opposite direction from the second heat exchange pipe 220 and the third heat exchange pipe 230, respectively. As a result, the flow passage through which the heating water passes can be formed long, thereby improving heat transfer efficiency.

상기 실시예는 난방수가 열교환배관의 좌측면에서 유입되어 우측면으로 유출되는 구조를 예시한 것이다. The embodiment illustrates a structure in which the heating water flows in from the left side of the heat exchange pipe and flows out to the right side.

이하에서는 난방수가 열교환배관의 하측에서 유입되어 상측으로 유출되는 구조를 도 6과 도 7을 참조하여 설명한다.Hereinafter, a structure in which the heating water flows in from the lower side of the heat exchange pipe and flows out will be described with reference to FIGS. 6 and 7.

도 6은 본 발명의 다른 일실시예에 의한 열교환기를 보여주는 결합사시도, 도 7은 도 6의 열교환기에 대한 난방수 유로를 보여주는 단면도이다.6 is a perspective view showing a heat exchanger according to another embodiment of the present invention, Figure 7 is a cross-sectional view showing a heating water passage for the heat exchanger of FIG.

본 실시예는, 난방수유입구(420)를 통해 유입되는 난방수가 내부를 통과하면서 연소가스와의 열교환이 이루어진 후 난방수유출구(620)로 난방수가 유출될 수 있도록 복수의 열교환배관부(510,520,530)로 이루어진 열교환부(500)가 구비된다.This embodiment, the plurality of heat exchange pipe 510, 520, 530 so that the heating water flowing through the heating water inlet 420 passes through the inside and the heat is exchanged with the combustion gas after the heating water flows out to the heating water outlet 620 It is provided with a heat exchanger 500 made of.

상기 난방수유입구(420)는 제1열교환배관부(510)의 하측 열교환배관(511)에 형성되어 있고, 상기 난방수유출구(620)는 제3열교환배관부(530)의 상측 열교환배관(532)에 형성되어 있다.The heating water inlet 420 is formed in the lower heat exchange pipe 511 of the first heat exchange pipe 510, and the heating water outlet 620 is an upper heat exchange pipe 532 of the third heat exchange pipe 530. ) Is formed.

상기 열교환배관부(510,520,530)의 각 배관 단면은 도 3 내지 도 5에서의 실시예와 동일하게 연소가스와 접촉되는 변의 폭이 높이에 비해 큰 장방형의 것이면 어떤 형상이든 적용가능하다. Each pipe cross section of the heat exchanging pipe parts 510, 520, 530 may be applied in any shape as long as the width of the side contacting the combustion gas is larger than the height as in the embodiment of FIGS.

또한 상기 열교환배관부(510,520,530)의 각 배관 사이를 연결하는 배관연결부는 그 위치를 제외하고는 도 3 내지 도 5에서의 실시예와 연결구조가 동일하게 되어 있다.In addition, the pipe connecting portion for connecting between the pipes of the heat exchange pipe 510, 520, 530 is the same as the embodiment in Figures 3 to 5 except for its position.

상기 열교환배관부(510,520,530)의 일측 끝단에는 제1보조판(430)과 제1엔드플레이트(410)가 순차로 결합되고, 타측 끝단에는 제2보조판(630)과 제2엔드플레이트(610)가 순차로 결합된다.The first subsidiary plate 430 and the first end plate 410 are sequentially coupled to one end of the heat exchange pipe 510, 520, 530, and the second subsidiary plate 630 and the second end plate 610 are sequentially connected to the other end thereof. Are combined.

상기 제1보조판(430)과 제2보조판(630)에는 도 3 내지 도 5의 실시예와 같이 배관삽입구멍(430a,630a)이 형성되어 있다. 상기 배관삽입구멍(430a,630a)은 상하 일정한 간격으로 이격되어 있어 열교환배관 사이의 간격을 일정하게 유지할 수 있도록 한다.Pipe inserting holes 430a and 630a are formed in the first subsidiary plate 430 and the second subsidiary plate 630 as shown in FIGS. 3 to 5. The pipe insertion holes 430a and 630a are spaced apart at regular intervals up and down to maintain a constant gap between the heat exchange pipes.

상기 제1엔드플레이트(410)와 제2엔드플레이트(610)는 상기 열교환배관부(510,520,530)의 양측 끝단을 폐쇄할 수 있도록 평판형상으로 이루어진다.The first end plate 410 and the second end plate 610 have a flat plate shape so as to close both ends of the heat exchange pipes 510, 520, and 530.

상기 열교환부(500)에는 난방수유입구(420)를 통해 유입된 난방수가 통과하 는 제1열교환배관부(510)가 구비된다. 상기 제1열교환배관부(510)는 2개의 열교환배관(511,512)이 제1보조판(430)과 제2보조판(630)에 결합되어 2개의 열교환배관(511,512) 사이로 연소가스가 통과할 수 있도록 일정한 간격으로 이격되어 설치된다.The heat exchange part 500 is provided with a first heat exchange pipe part 510 through which the heating water introduced through the heating water inlet 420 passes. The first heat exchange pipe part 510 has two heat exchange pipes 511 and 512 coupled to the first auxiliary plate 430 and the second auxiliary plate 630 so that combustion gas can pass between the two heat exchange pipes 511 and 512. Installed at intervals.

상기 난방수유입구(420)는 제1열교환배관부(510)중 하측의 열교환배관(511) 하면에 형성된 배관연결부(511a)에 연결된다.The heating water inlet 420 is connected to a pipe connection part 511a formed on a lower surface of the heat exchange pipe 511 of the lower side of the first heat exchange pipe part 510.

상기 2개의 열교환배관(511,512)은 일측에 형성된 배관연결부(511b,512a)에서 연결되어 하측의 열교환배관(511) 내부의 난방수와 상측의 열교환배관(512) 내부의 난방수는 제2열교환배관부(520)로 이송된다. The two heat exchange pipes 511 and 512 are connected at the pipe connection parts 511b and 512a formed at one side thereof, and the heating water inside the heat exchange pipe 511 at the lower side and the heating water inside the heat exchange pipe 512 at the upper side may be a second heat exchange pipe. Transferred to the unit 520.

상기 배관연결부(511a,511b,512a)는 열교환배관의 표면으로부터 돌출되어 용접결합되고, 제2열교환배관부(520)와 제3열교환배관부(530)의 각 배관이 연결되는 배관연결부(도면번호 미도시)의 형상 및 결합방식도 동일하다.The pipe connection parts 511a, 511b, and 512a protrude from the surface of the heat exchange pipe and are welded to each other, and a pipe connection part to which respective pipes of the second heat exchange pipe part 520 and the third heat exchange pipe part 530 are connected. Not shown) is the same shape and coupling method.

상기 제2열교환배관부(520)는 2개의 열교환배관(521,522)으로 이루어지고, 난방수 유로의 흐름은 제1열교환배관부(510)에서의 방향과 반대방향인 좌측방향이 된다. The second heat exchange pipe part 520 is composed of two heat exchange pipes 521 and 522, and the flow of the heating water flow path becomes a left direction opposite to the direction in the first heat exchange pipe part 510.

상기 제2열교환배관부(520)를 통과한 난방수는 제3열교환배관부(530)로 유입된다. 상기 제3열교환배관부(530)는 2개의 열교환배관(531,532)으로 이루어지고, 난방수는 좌측에서 우측방향으로 흘러 상측의 열교환배관(532) 상면 배관연결부에 결합된 난방수유출구(620)를 통해 유출된다.The heating water passing through the second heat exchange pipe 520 is introduced into the third heat exchange pipe 530. The third heat exchange pipe part 530 is composed of two heat exchange pipes 531 and 532, and the heating water flows from the left side to the right direction, and the heating water outlet 620 coupled to the upper surface pipe connection part of the upper heat exchange pipe 532. Spills through.

도 8은 본 발명의 다른 실시예에 의한 열교환배관을 보여주는 단면도이다.8 is a cross-sectional view showing a heat exchange pipe according to another embodiment of the present invention.

연소가스가 통과하는 열교환배관(711,712,713,714,715,716) 사이의 간격은 연소가스의 입구측(700a)이 출구측(700b)에 비해 넓은 것이 바람직하다. 즉 도 8에 도시된 바와 같이 열교환배관(711,712,713,714,715,716)의 단면은 옆으로 누운 사다리꼴 모양을 하고 있어 열교환배관(711,712,713,714,715,716) 사이의 간격은 연소가스가 유입되는 입구측(700a)에서 출구측(700b)으로 갈수록 좁아지고 있음을 알 수 있다.The interval between the heat exchange pipes 711, 712, 713, 714, 715 and 716 through which the combustion gas passes is preferably wider than the inlet side 700a of the combustion gas than the outlet side 700b. That is, as shown in FIG. 8, the cross-sections of the heat exchange pipes 711, 712, 713, 714, 715, 716 have a trapezoidal shape lying sideways so that the interval between the heat exchange pipes 711, 712, 713, 714, 715, 716 is from the inlet side 700a to the outlet side 700b where the combustion gas flows. You can see that it is getting narrower.

일반적으로 연소가스는 열교환배관의 입구에서는 고온이나 열교환배관의 출구에서는 온도가 낮아지므로 그에 따라 체적이 줄어들게 된다. 이와 같이 연소가스의 체적이 줄어들게 되면 입구와 출구측의 단면적이 동일한 경우 연소가스의 속도가 떨어지게 되므로 열전달 효율이 떨어지는 결과를 낳는다.In general, the combustion gas has a high temperature at the inlet of the heat exchange pipe, but the temperature is lowered at the outlet of the heat exchange pipe, thereby reducing the volume. As such, when the volume of the combustion gas is reduced, the velocity of the combustion gas decreases when the cross-sectional area of the inlet and the outlet side is the same, resulting in a lower heat transfer efficiency.

따라서 본 발명의 열교환배관 구조와 같이 연소가스가 넓은 입구측(700a)으로 유입되어 좁은 출구측(700b)으로 나오게 한다면 입구측(700a)에서부터 출구측(700b)에 이르기까지 연소가스 속도를 일정하게 유지할 수 있어 열전달 효율을 높일 수 있게 된다.Therefore, if the combustion gas flows into the wide inlet side 700a and exits the narrow outlet side 700b as in the heat exchange pipe structure of the present invention, the combustion gas velocity is constant from the inlet side 700a to the outlet side 700b. It can maintain the heat transfer efficiency.

도 9는 본 발명의 다른 실시예에 의한 열교환배관을 보여주는 단면도이다.9 is a cross-sectional view showing a heat exchange pipe according to another embodiment of the present invention.

도 9(a)와 같이 열교환배관(811)은 평판을 성형하여 대략 사각의 단면형상이 되도록 한 후 플랜지부(811a)를 서로 맞대어 측방향으로 돌출되도록 한 후 코킹(Caulking) 및 브레이징 용접으로 결합할 수 있다. As shown in FIG. 9 (a), the heat exchange pipe 811 is formed in a flat plate to have a substantially rectangular cross-sectional shape, and then the flanges 811a are projected laterally against each other, and then joined by caulking and brazing welding. can do.

또한 도 9(b)에서는 열교환배관(911)은 평판을 성형하여 대략 사각의 단면형상이 되도록 한 후 평판 양 끝단이 열교환배관(911)의 상면에서 플랜지부(911a)가 서로 맞대어지도록 한 후 코킹(Caulking) 및 브레이징 용접으로 결합할 수 있다. In addition, in Figure 9 (b) the heat exchange pipe 911 is formed of a flat plate to have a substantially rectangular cross-sectional shape, and then both sides of the plate to the flange portion 911a on the upper surface of the heat exchange pipe 911, and then caulking Can be combined by caulking and brazing welding.

이상, 본 발명을 실시 예를 사용하여 설명하였으나 이들 실시예는 예시적인 것에 불과하며 본 발명이 속하는 기술 분야에서 통상의 지식을 지닌 자라면 본 발명의 사상에서 벗어나지 않으면서 다양한 수정과 변경을 가할 수 있음을 이해할 수 있을 것이다.As described above, the present invention has been described using embodiments, but these embodiments are merely exemplary, and those skilled in the art may make various modifications and changes without departing from the spirit of the present invention. I can understand that.

이상에서 상세히 설명한 바와 같이 본 발명에 따른 열교환기에 의하면, 열교환배관을 통과하는 난방수의 유로를 길게 형성하면서도 열교환배관 사이의 간격을 좁혀 열전달효율을 향상시킬 수 있으며 제작이 간단한 장점이 있다.As described in detail above, according to the heat exchanger according to the present invention, while forming a long flow path of the heating water passing through the heat exchange pipe, it is possible to improve the heat transfer efficiency by narrowing the interval between the heat exchange pipes, and the manufacturing is simple.

Claims (6)

난방수가 내부를 통과하고 연소가스와 접촉되는 변의 폭이 높이에 비해 큰 장방형의 단면을 가지며, 배관연결부를 구비한 다수의 열교환배관; A plurality of heat exchange pipes each having a rectangular cross-section having a width larger than the height of the side where the heating water passes through and contacts the combustion gas; 길이방향으로 일정한 간격으로 이격된 배관삽입구멍을 갖고, 상기 배관삽입구멍에는 상기 다수의 열교환배관 각각의 양측끝단이 끼워지는 제1보조판과 제2보조판;A first auxiliary plate and a second auxiliary plate having pipe insertion holes spaced at regular intervals in a longitudinal direction, and both ends of each of the plurality of heat exchange pipes fitted into the pipe insertion holes; 난방수 유입구를 갖고 상기 제1보조판에 밀착 결합되는 제1엔드플레이트;A first end plate having a heating water inlet and tightly coupled to the first auxiliary plate; 난방수 유출구를 갖고 상기 제2보조판에 밀착 결합되는 제2엔드플레이트를 포함하고, A second end plate having a heating water outlet and tightly coupled to the second auxiliary plate; 인접하는 상기 열교환배관의 배관연결부는 서로 연결되어, 상기 난방수유입구로 유입된 난방수는 다수의 열교환배관 및 배관연결부를 통과하여 상기 난방수유출구로 유출되는 것을 특징으로 하는 보일러용 열교환기.The pipe connection portion of the adjacent heat exchange pipe is connected to each other, the heating water flowing into the heating water inlet is passed through a plurality of heat exchange pipes and pipe connection portion, the heat exchanger for the heat exchanger characterized in that the outlet. 난방수가 내부를 통과하고 연소가스와 접촉되는 변의 폭이 높이에 비해 큰 장방형의 단면을 가지며, 배관연결부를 구비한 다수의 열교환배관; A plurality of heat exchange pipes each having a rectangular cross-section having a width larger than the height of the side where the heating water passes through and contacts the combustion gas; 길이방향으로 일정한 간격으로 이격된 배관삽입구멍을 갖고, 상기 배관삽입구멍에는 상기 다수의 열교환배관 각각의 양측끝단이 끼워지는 제1보조판과 제2보조판;A first auxiliary plate and a second auxiliary plate having pipe insertion holes spaced at regular intervals in a longitudinal direction, and both ends of each of the plurality of heat exchange pipes fitted into the pipe insertion holes; 상기 제1보조판의 외측에 밀착 결합되는 제1엔드플레이트;A first end plate closely coupled to an outer side of the first auxiliary plate; 상기 제2보조판의 외측에 밀착 결합되는 제2엔드플레이트;A second end plate closely coupled to an outer side of the second auxiliary plate; 최하측 또는 최상측에 위치한 열교환배관 중 어느 하나와 연결되는 난방수유입구;A heating water inlet connected to any one of heat exchange pipes located at the lowermost or uppermost side; 최하측 또는 최상측에 위치한 열교환배관 중 다른 하나와 연결되는 난방수유출구를 포함하고,It includes a heating water outlet connected to the other of the heat exchange pipe located on the bottom or the top, 인접하는 상기 열교환배관의 배관연결부는 서로 연결되어, 상기 난방수유입구로 유입된 난방수는 다수의 열교환배관 및 배관연결부를 통과하여 상기 난방수유출구로 유출되는 것을 특징으로 하는 보일러용 열교환기.The pipe connection portion of the adjacent heat exchange pipe is connected to each other, the heating water flowing into the heating water inlet is passed through a plurality of heat exchange pipes and pipe connection portion, the heat exchanger for the heat exchanger characterized in that the outlet. 제1항 또는 제2항에 있어서, 상기 제1 엔드플레이트, 제1 보조판 및 열교환배관의 일측 끝단은 브레이징 용접되고,According to claim 1 or 2, wherein one end of the first end plate, the first auxiliary plate and the heat exchange pipe is brazed, 상기 제2 엔드플레이트, 제2 보조판 및 열교환배관의 타측 끝단은 브레이징 용접되고,The other end of the second end plate, the second auxiliary plate and the heat exchange pipe is brazed, 상기 인접하는 상기 열교환배관의 배관연결부 사이는 브레이징 용접되는 것을 특징으로 하는 보일러용 열교환기.The heat exchanger for the boiler, characterized in that the brazing welding between the adjacent pipe connection of the heat exchange pipe. 삭제delete 삭제delete 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 복수의 열교환배관은, 연소가스의 입구측의 열교환배관 사이 간격이 넓고 연소가스의 출구측 열교환배관 사이 간격이 좁아지도록 단면이 형성된 것을 특징으로 하는 보일러용 열교환기.The plurality of heat exchange pipes, the heat exchanger for the boiler, characterized in that the cross section is formed so that the interval between the heat exchange pipes on the inlet side of the combustion gas is wide and the gap between the heat exchange pipes on the outlet side of the combustion gas is narrow.
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