KR101149983B1 - A plate heat exchanger of welding type - Google Patents

A plate heat exchanger of welding type Download PDF

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Publication number
KR101149983B1
KR101149983B1 KR1020110097678A KR20110097678A KR101149983B1 KR 101149983 B1 KR101149983 B1 KR 101149983B1 KR 1020110097678 A KR1020110097678 A KR 1020110097678A KR 20110097678 A KR20110097678 A KR 20110097678A KR 101149983 B1 KR101149983 B1 KR 101149983B1
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KR
South Korea
Prior art keywords
heat transfer
heat exchanger
plate
flange
welded
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KR1020110097678A
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Korean (ko)
Inventor
조형석
안성국
성대훈
도낙수
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조형석
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Priority to KR1020110097678A priority Critical patent/KR101149983B1/en
Application granted granted Critical
Publication of KR101149983B1 publication Critical patent/KR101149983B1/en
Priority to PCT/KR2012/006937 priority patent/WO2013048021A1/en
Priority to CN201280001006XA priority patent/CN103119389A/en

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    • 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
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • F28D9/0025—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 being formed by zig-zag bend plates
    • 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
    • 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
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • 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
    • 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
    • F28F9/0243—Header boxes having a circular cross-section
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • 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
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations

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

Abstract

PURPOSE: A plate heat exchanger of a welding type is provided to simplify a manufacturing process because a heat exchanger is manufactured by forming a cut-out unit in an edge side of laminated electric heat plates and directly welding an intake pipe and discharge pipe to the cut-out unit. CONSTITUTION: A plate heat exchanger of a welding type comprises an electric heat assembly, an intake pipe(121), an discharge pipe(122), and outer plates(131,132). The electric heat assembly comprises cut-out units respectively formed in each four edges and composed of a plurality of electric heat plates laminated in up and down directions. An opening is formed in a side of the intake and discharge pipes along a longitudinal direction. The intake and discharge pipes are welded to the cut-out unit so that fluid flows and discharges through a fluid flow path. The outer plates are respectively joined to the upper and lower part of the electric heat assembly.

Description

용접식 판형 열교환기{A Plate Heat Exchanger of Welding Type}A plate heat exchanger of welding type

본 발명은 용접식 판형 열교환기에 관한 것으로, 더욱 상세하게는 적층되는 전열판의 모서리 측에 절개부를 형성하고, 유체가 유,출입되는 개구부를 갖는 유,출입 파이프를 절개부에 직접 용접하여 열교환기를 제작함으로써 열교환기의 제작을 위한 용접량을 줄여 제조공정을 단순화할 수 있는 용접식 판형 열교환기에 관한 것이다.The present invention relates to a welded plate heat exchanger, and more particularly, to form a cutout on the edge side of the heat transfer plate to be laminated, and to produce a heat exchanger by directly welding the oil and the inlet and outlet pipe having openings through which fluid flows in and out. The present invention relates to a welded plate heat exchanger capable of simplifying a manufacturing process by reducing a welding amount for manufacturing a heat exchanger.

일반적으로 열교환기는 하나의 유체(또는 가스)로부터 다른 유체로 물리적인 접촉이 없이 열을 전달하기 위한 것이다. 즉, 유체가 서로 섞이지 않고 열만 전달하는 것으로 하나의 유체를 간접적으로 가열하거나 냉각하고자 할 때 사용하는 장치이다.In general, heat exchangers are for transferring heat from one fluid (or gas) to another without physical contact. In other words, it is a device used to heat or cool one fluid indirectly by transferring only heat without fluid mixing.

이러한 열교환기는 크기가 큰 것이 효과적이며, 크기에 비례하여 열교환기의 단가가 높아진다. 따라서, 적은 비용에 의하여 큰 용량의 열교환을 하는 것이 중요한데, 열교환기의 타입 중에 Shell & Tube 타입은 크기에 비하여 아주 적은 열교환이 이루어지기 때문에 열교환 성능이 높은 판형 열교환기에 대한 개발이 많이 이루어지고 있는 실정이다.It is effective that such a heat exchanger is large in size, and the unit cost of the heat exchanger increases in proportion to the size. Therefore, it is important to perform large capacity heat exchange at a low cost. Among the types of heat exchanger, the shell & tube type has a very small heat exchange rate compared to its size, and thus many plate heat exchangers with high heat exchange performance have been developed. to be.

이러한 용접식 판형열교환기는 완전용접식과 반용접식으로 구분되며, 제조방식에 따라 진공로에서 제작되는 브레이징 제작방식과 외부에서 용접작업을 수행하는 자동용접(레이저용접, 심용접, CO2용접, Tig용접 등)으로 나뉜다. 이러한 열교환기를 사용하는 환경은 저온/저압에서 고온/고압, 소형용량에서 대형용량까지 제작이 가능하고 다양한 환경에서 적용이 가능하다.The welded plate heat exchanger is divided into full welding type and semi-welding type, and the automatic welding (laser welding, core welding, CO 2 welding, Tig) to perform the brazing production method and the welding work produced outside in the vacuum furnace according to the manufacturing method. Welding). The environment using such a heat exchanger can be manufactured from low temperature / low pressure to high temperature / high pressure, small capacity to large capacity, and can be applied in various environments.

도 1은 종래의 용접식 판형 열교환기(1)의 개략적인 구조를 나타낸 것으로, 복수 개의 전열판(10)을 적층하여 전열조립체를 형성하고, 상기 전열조립체의 상부 및 좌,우 양측에 저온측 입구/축구, 고온측 입구/출구의 역할을 하는 헤더박스(12,14,16,18)가 추가로 구비된다.1 shows a schematic structure of a conventional welded plate heat exchanger 1, in which a plurality of heat transfer plates 10 are stacked to form a heat transfer assembly, and a low temperature side inlet is provided on both top and left and right sides of the heat transfer assembly. Header boxes 12, 14, 16, and 18 that serve as / football and hot side inlet / outlet are further provided.

이러한 종래의 열교환기는 헤더박스가 추가로 부착되기 때문에 부피가 커질 뿐만 아니라 이를 위한 많은 용접작업이 필요하게 된다. 이에 따라 제조비 상승 및 생산성 저하로 판형 열교환기를 제작하기 위한 생산비용이 증가되고, 열교환기의 부피가 커질 수 밖에 없어 설치면적이 증가하는 문제점이 있었다.This conventional heat exchanger is not only bulky because the header box is additionally attached, but also requires a lot of welding work therefor. Accordingly, the production cost for manufacturing the plate heat exchanger is increased due to the increase in manufacturing cost and the decrease in productivity, and the volume of the heat exchanger is inevitably increased, resulting in an increase in the installation area.

더욱이 많은 용접 작업이 이루어지기 때문에 작업 과정에서 용접불량이 일어나 유체가 외부로 누설되어 안전사고가 발생되는 문제점이 있었다. 또한, 사각박스 형태로 부착되는 헤더박스는 고압에서 사용할 경우 크랙이 발생되는 확률이 높아 전체적인 효율을 저하시키는 문제점이 있었다.In addition, since a lot of welding work is made, there is a problem in that a welding failure occurs in the working process and a fluid accident leaks to the outside. In addition, the header box attached in the form of a rectangular box has a problem of high overall probability of cracking when used at high pressure.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 적층되는 전열판의 모서리 측에 절개부를 형성하고, 유체가 유,출입되는 개구부를 갖는 유,출입 파이프를 절개부에 직접 용접하여 열교환기를 제작함으로써 열교환기의 제작을 위한 용접량을 줄여 제조공정을 단순화함으로써 생산비용을 절감하고 생산성을 향상시킬 수 있는 용접식 판형 열교환기를 제공하는 데 있다.The present invention is to solve the above problems, by forming a cutout on the edge side of the heat transfer plate to be laminated, heat-exchanging by making a heat exchanger by directly welding the oil, the access pipe having an opening through which fluid flows in and out It is to provide a welded plate heat exchanger that can reduce production cost and improve productivity by reducing the amount of welding for fabrication of the machine.

상기와 같은 목적을 달성하기 위하여 본 발명은 사각판상의 전열면을 갖는 전열판이 적층되는 판형 열교환기에 있어서, 4개의 모서리에 각각 절개형성되는 절개부를 갖추고 유체통로가 형성되도록 상기 전열면이 서로 대향배치되어 상,하방향으로 적층되는 복수 개의 전열판으로 이루어진 전열조립체; 일측에 길이방향을 따라 절개형성되는 개구부를 갖추고, 상기 개구부를 통해 유체가 상기 유체통로 측으로 유,출입될 수 있도록 개구부 측이 유체통로와 연통되게 상기 절개부에 용접되는 유,출입 파이프; 및 상기 전열조립체의 상,하부에 각각 결합되는 외판;을 포함하는 용접식 판형 열교환기를 제공한다.In order to achieve the above object, the present invention is a plate heat exchanger in which a heat transfer plate having a heat transfer surface having a rectangular plate shape is laminated, and the heat transfer surfaces are disposed to face each other so that a fluid passage is formed with cutouts formed at four corners, respectively. A heat transfer assembly including a plurality of heat transfer plates stacked in up and down directions; An opening / exit pipe having an opening formed at one side in a longitudinal direction and welded to the cutout portion so that the opening side communicates with the fluid passage so that the fluid can flow into and out of the fluid passage through the opening; It provides a welded plate heat exchanger comprising; and an outer plate respectively coupled to the upper and lower portions of the heat transfer assembly.

바람직하게는, 상기 전열판은 양 단에 상기 전열면보다 높게 절곡형성되는 제1플랜지와 상기 전열면보다 낮게 절곡형성되는 제2플랜지가 구비되고, 상기 제1플랜지 및 제2플랜지가 서로 교대로 배치되어 상부에 배치되는 전열판의 제1플랜지와 하부에 배치되는 제2플랜지가 상호 용접될 수 있다.Preferably, the heat transfer plate is provided at both ends with a first flange bent higher than the heat transfer surface and a second flange formed bent lower than the heat transfer surface, the first flange and the second flange are alternately arranged And the first flange of the heat transfer plate disposed on the upper portion and the second flange disposed on the lower portion may be welded to each other.

바람직하게는, 상기 절개부는 상기 제1플랜지 및 제2플랜지 상에 형성될 수 있다.Preferably, the cutout may be formed on the first flange and the second flange.

바람직하게는, 상기 제1플랜지 및 제2플랜지의 상호 접합은 심용접, CO2 용접, Tig 용접 또는 자동용접 중 어느 하나로 이루어질 수 있다.Preferably, the mutual bonding of the first flange and the second flange may be made of any one of core welding, CO 2 welding, Tig welding or automatic welding.

바람직하게는, 상기 전열조립체와 외판의 사이에는 외부와의 기밀성을 높일 수 있도록 내판이 추가적으로 구비될 수 있다.Preferably, the inner plate may be additionally provided between the heat transfer assembly and the outer plate to increase airtightness with the outside.

바람직하게는, 상기 전열조립체의 상,하부에 배치되는 외판 중 어느 일측에는 상기 유,출입 파이프와 각각 연통되는 유출구 및 유입구가 구비될 수 있다.Preferably, any one side of the outer plate disposed on the upper, lower portions of the heat transfer assembly may be provided with an outlet and an inlet to communicate with the oil, the inlet and outlet pipe, respectively.

바람직하게는, 상기 절개부와 유,출입 파이프는 용접부위가 외부로 노출될 수 있다.Preferably, the cutout and the oil and the inflow pipe may be exposed to the outside of the weld.

바람직하게는, 상기 유,출입 파이프는 다각단면, 원형단면 및 이들이 조합된 단면을 갖도록 형성될 수 있다.Preferably, the flow-in and out pipes may be formed to have a polygonal cross section, a circular cross section and a cross section in combination thereof.

바람직하게는, 상기 전열조립체의 전/후/좌/우에는 유체통로를 통해 이동되는 유체가 외부로 누설되는 것을 방지할 수 있도록 측판이 추가적으로 구비될 수 있다.Preferably, the front plate of the heat transfer assembly may be additionally provided with a side plate to prevent the fluid flowing through the fluid passage to leak to the outside.

바람직하게는, 상기 전열면은 산부와 골부가 반복적으로 구비되는 엠보싱 패턴으로 형성될 수 있다.Preferably, the heat transfer surface may be formed in an embossing pattern in which the peaks and valleys are repeatedly provided.

본 발명에 의하면, 적층되는 전열판의 모서리 측에 절개부를 형성하고, 유체가 유,출입되는 개구부를 갖는 유,출입 파이프를 절개부에 직접 용접하여 열교환기를 제작함으로써 별도의 헤더박스를 부착할 필요가 없어 열교환기의 제작을 위한 용접량을 줄여 제조공정을 단순화함으로써 생산비용을 절감하고 생산성을 향상시킬 수 있는 효과가 있다.According to the present invention, there is no need to attach a separate header box by forming a cutout at the corner of the heat transfer plate to be laminated, and directly manufacturing a heat exchanger by directly welding the oil / exit pipe having openings through which fluid flows in and out. There is an effect that can reduce the amount of welding for the production of heat exchanger to simplify the manufacturing process to reduce the production cost and improve the productivity.

도 1은 종래의 용접식 판형 열교환기를 나타낸 개략도.
도 2는 본 발명에 따른 용접식 판형 열교환기를 나타낸 결합사시도.
도 3은 도 2의 분리사시도.
도 4는 본 발명에 따른 용접식 판형 열교환기에서 전열조립체를 나타낸 사시도.
도 5는 도 4의 종단면도 및 횡단면도.1 is a schematic view showing a conventional welded plate heat exchanger.
Figure 2 is a perspective view showing a welded plate heat exchanger according to the present invention.
3 is an exploded perspective view of FIG. 2;
Figure 4 is a perspective view of the heat transfer assembly in a welded plate heat exchanger according to the present invention.
5 is a longitudinal cross-sectional view and a cross-sectional view of FIG. 4.

이하, 본 발명의 바람직한 실시예를 도면을 참조하여 더욱 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

이하에서, 발명의 이해를 돕기 위해 도면부호를 부가함에 있어 동일한 구성요소에 대해서는 비록 다른 도면에 표시되었다 하더라도 동일한 도면부호를 사용하기로 한다.In order to facilitate understanding of the present invention, the same reference numerals will be used to denote the same constituent elements even if they are shown in different drawings.

본 발명의 바람직한 실시예에 따른 용접식 판형 열교환기(100)는 복수 개가 적층되어 전열조립체(A)를 구성하는 각각의 전열판(110)의 네 모서리에 절개부(114a1,114b,114c,114d)를 형성하고, 상기 절개부(114a1,114b,114c,114d)에 유체가 유출입되는 유입파이프(121) 및 유출파이프(122)를 각각 직접 용접하여 열교환기(100)를 구성함으로써 용접부위가 외부로 노출되어 용접작업이 용이하여 유체의 누설불량을 충분히 방지하고 생산성을 향상시킬 수 있다. Welded plate heat exchanger 100 according to a preferred embodiment of the present invention is a plurality of cut-out portion (114a1, 114b, 114c, 114d) in four corners of each of the heat transfer plate (110) constituting the heat transfer assembly (A) And weld the inlet pipe 121 and the outlet pipe 122 through which the fluid flows in and out of the cutouts 114a1, 114b, 114c, 114d to form a heat exchanger 100. It is easy to weld because it is exposed to prevent leakage of fluid sufficiently and improve productivity.

이와 같은 용접식 판형 열교환기(100)는 전열조립체(A), 유,출입파이프(121,122) 및 한 쌍의 외판(131,132)을 포함한다.The welded plate heat exchanger 100 includes a heat transfer assembly A, oil and flow pipes 121 and 122, and a pair of outer plates 131 and 132.

상기 전열조립체(A)는 복수 개로 구비되는 전열판(110)이 유체통로(S)를 형성하도록 일정간격 이격된 상태로 적층배치되며, 일단부가 지그재그 방식으로 용접되어 서로 다른 두 종류의 유체가 서로 섞이지 않은 상태에서 열교환이 일어날 수 있도록 한다.The heat transfer assembly (A) is arranged in a state in which a plurality of heat transfer plate 110 is spaced apart so as to form a fluid passage (S), one end is welded in a zigzag manner, the two different types of fluids are not mixed with each other. To allow heat exchange to occur.

즉, 상기 전열조립체(A)를 구성하는 복수 개의 전열판(110)은 전열면(112)을 갖는 대략 사각판상으로 구비되고, 상,하부에 적층 배치되는 다른 전열판(110)과의 접합을 위해 양 단부에 제1플랜지(116) 및 제2플랜지(118)가 구비된다.That is, the plurality of heat transfer plates 110 constituting the heat transfer assembly (A) is provided in a substantially rectangular plate shape having a heat transfer surface 112, and for bonding with other heat transfer plates 110 stacked on top and bottom. The first flange 116 and the second flange 118 are provided at the end.

상기 전열면(112)은 일정면적을 갖추어 상,하부에 대향 배치되는 전열면(112)과 짝을 이루어 유체가 이동되는 유체통로(S)를 형성하게 되며, 표면에 골부(미도시) 및 산부(미도시)가 반복적으로 형성되는 엠보싱 패턴이 형성되어 전열면적을 넓혀줌으로써 열교환 효율을 극대화시키는 것이 바람직하다.The heat transfer surface 112 has a predetermined area to form a fluid passage (S) through which the fluid is moved in pairs with the heat transfer surface 112 disposed opposite to the upper and lower sides, and the valleys (not shown) and the peak on the surface. It is preferable to maximize the heat exchange efficiency by forming an embossed pattern (not shown) repeatedly formed to widen the heat transfer area.

상기 제1플랜지(116)는 유체통로를 형성하는 전열면(112)보다 높게 절곡형성되고, 상기 제2플랜지(118)는 상기 전열면(112)보다 낮게 절곡형성된다. 이러한 제1,2플랜지는 프레스 가공에 의해 절곡형성된다.The first flange 116 is bent higher than the heat transfer surface 112 forming the fluid passage, and the second flange 118 is bent lower than the heat transfer surface 112. The first and second flanges are bent by press working.

이와 같이 제1플랜지(116) 및 제2플랜지(118)가 각각 형성된 전열판(110)은 유체가 이동하는 유체통로(S)를 형성할 수 있도록 서로 대향 배치된 상태에서 일정간격 이격배치되며, 제1플랜지(116) 및 제2플랜지(118)가 교대로 배치되는 형태로 적층된다.As such, the heat transfer plates 110 on which the first flange 116 and the second flange 118 are formed are respectively spaced apart from each other so as to form a fluid passage S through which the fluid moves. The first flange 116 and the second flange 118 are stacked in such a way that they are alternately arranged.

이에 따라, 도 5b에서 좌측을 기준으로 설명하면, 상부에 배치된 전열판(110)의 제2플랜지(118)는 하부에 배치되는 전열판의 제1플랜지(116)와 서로 면접되어 상호 접합되고, 하부에 배치되는 전열판의 제2플랜지(118)는 그 하부에 배치되는 전열판(110)의 제1플랜지(116)와 서로 면접되어 상호 접합되는 형태를 이루게 된다. Accordingly, referring to the left side in FIG. 5B, the second flange 118 of the heat transfer plate 110 disposed on the upper portion is interviewed with and joined to the first flange 116 of the heat transfer plate disposed on the lower portion thereof. The second flange 118 of the heat transfer plate is disposed in the interview with the first flange 116 of the heat transfer plate 110 is formed in the form that is mutually bonded.

이로 인해, 상기 전열조립체(A)는 전열판(110)의 양단에 각각 구비되는 제1플랜지(116) 및 제2플랜지(118)가 전열면(112)을 기준으로 반대방향으로 절곡 형성되고 제1플랜지(116) 및 제2플랜지(118)가 교대로 배치되는 형태로 적층됨으로써 전체적으로 지그재그 형상으로 상호 접합되어 일측이 개방되고 타측이 상호접합에 의해 밀폐된 유체통로(S)를 형성하게 된다.For this reason, the heat transfer assembly (A) is formed in each of the first flange 116 and the second flange 118 provided at both ends of the heat transfer plate 110 in the opposite direction relative to the heat transfer surface 112 and the first Since the flange 116 and the second flange 118 are stacked in an alternately arranged shape, the flange 116 and the second flange 118 are alternately bonded to each other in a zigzag shape to form a fluid passage S in which one side is opened and the other side is sealed by mutual bonding.

이와 같이 복수 개의 전열판(110)이 서로 적층배치되어 상기 제1플랜지(116) 및 제2플랜지(118)가 지그재그 방식의 접합을 통해 유체통로(S)가 형성된 전열조립체(A)의 전,후,좌,우 면에는 도 4 및 도 5에 도시된 바와 같이 별도의 측판(141,142)이 용접되어 유체통로(S)의 개방된 부분을 밀폐하게 된다.In this way, the plurality of heat transfer plates 110 are stacked on each other, so that the first flange 116 and the second flange 118 are before and after the heat transfer assembly A in which the fluid passage S is formed through the zigzag bonding. , Left and right sides, as shown in FIGS. 4 and 5, separate side plates 141 and 142 are welded to seal the open portion of the fluid passage S. FIG.

여기서, 상기 제1플랜지(116) 및 제2플랜지(118)의 상호 접합은 심용접, CO2용접, Tig 용접 또는 자동용접을 통해 접합하게 된다.Here, the mutual bonding of the first flange 116 and the second flange 118 is bonded through core welding, CO 2 welding, Tig welding or automatic welding.

한편, 사각판상으로 구비되는 전열판(110)은 4 개의 모서리에 각각 절개형성되는 절개부(114a1,114b,114c,114d)가 마련된다. 이러한 절개부(114a1,114b,114c,114d)에는 도 2 및 도 3에 도시된 바와 같이 상기 유입파이프(121) 및 유출파이프(122)의 측부가 접하여 용접됨으로써 상기 유체통로(S) 측으로 유체가 유출입될 수 있도록 한다. On the other hand, the heat transfer plate 110 provided in the shape of a square plate is provided with cutouts 114a1, 114b, 114c, 114d are formed in each of the four corners. As shown in FIGS. 2 and 3, the cutouts 114a1, 114b, 114c, and 114d come into contact with the side surfaces of the inflow pipe 121 and the outflow pipe 122 to weld the fluid toward the fluid passage S. Allow it to flow in and out.

여기서, 상기 유입파이프(121) 및 유출파이프(122)는 측부에 길이방향을 따라 절개형성되는 개구부(121a,122a)를 갖추어 일정길이를 갖도록 마련된다. 이에 따라, 제1플랜지(116) 및 제2플랜지(118)를 통해 일측이 밀폐된 유체통로(S)를 갖도록 지그재그 방식으로 접합된 전열조립체(A)는 나머지 개방된 부분이 상기 측판(141,142)에 의해 밀폐되어 유체가 누설되는 것이 방지되고, 상기 절개부(114a1,114b,114c,114d)에 상기 유입파이프(121) 및 유출파이프(122)가 직접 용접됨으로써 유입파이프(121) 및 유출파이프(122)의 일측에 마련된 개구부(121a,122a)를 통해 상기 유체통로(S) 측으로 유체가 유입되거나 유출될 수 있도록 한다.Here, the inflow pipe 121 and the outflow pipe 122 are provided to have a predetermined length by having openings 121a and 122a that are formed in the side portion in the longitudinal direction. Accordingly, the heat transfer assembly A joined in a zigzag manner such that one side has a sealed fluid passage S through the first flange 116 and the second flange 118 has the remaining open portions of the side plates 141 and 142. The inlet pipe 121 and the outlet pipe 122 are directly welded to the cutouts 114a1, 114b, 114c, and 114d by being sealed by the liquid, thereby preventing the leakage of fluid. Through the openings (121a, 122a) provided on one side of the 122 to allow the fluid to flow into or out of the fluid passage (S) side.

이와 같이 본 발명에 따른 용접식 판형 열교환기(100)는 전열판(110)의 네 모서리에 마련된 절개부(114a1,114b,114c,114d)에 상기 유입파이프(121) 및 유출파이프(122)가 직접 용접되어 열교환기를 구성하기 때문에 용접부위가 외부로 노출되어 작업이 매우 용이하여 생산성을 높일 수 있게 되며, 외부에서 직접 용접이 이루어지기 때문에 용접과정에서 발생되는 용접불량을 방지할 수 있게 된다.As described above, in the welded plate heat exchanger 100 according to the present invention, the inlet pipe 121 and the outlet pipe 122 are directly connected to the cutouts 114a1, 114b, 114c, and 114d provided at four corners of the heat transfer plate 110. Since the welded part constitutes a heat exchanger, the welding part is exposed to the outside, so the work is very easy to increase productivity, and since the welding is performed directly from the outside, welding defects generated during the welding process can be prevented.

한편, 도면에는 상기 유입파이프(121) 및 유출파이프(122)가 일정높이를 갖는 대략 원통형상으로 구비되고 상기 절개부(114a1,114b,114c,114d)가 이에 대응되는 원호의 형상으로 구비되는 것으로 도시하였지만 이에 한정하는 것은 아니며, 사각기둥이나 삼각기둥과 같은 다각기둥의 형태로 구비될 수도 있음을 밝혀둔다.Meanwhile, in the drawing, the inlet pipe 121 and the outlet pipe 122 are provided in a substantially cylindrical shape having a predetermined height, and the cutouts 114a1, 114b, 114c, 114d are provided in the shape of an arc corresponding thereto. Although not shown, it is not limited thereto, but it is understood that it may be provided in the form of a polygonal pillar such as a square pillar or a triangular pillar.

상기 외판(131,132)은 상기 전열판(110)보다 더 넓은 면적을 갖는 사각판상으로 구비되어 상기 전열조립체(A)의 상부측과 하부측에 각각 결합된다. 이러한 외판(131,132)은 상대적으로 두꺼운 두께를 갖도록 구비되어 본 발명에 따른 판형 열교환기가 고온/고압에서도 사용될 수 있도록 한다. 이때, 상기 한 쌍의 외판(131,132) 중 어느 일측(131)에는 상기 유입파이프(121) 및 유출파이프(122)와 연통되는 유입구(133a,133b) 및 유출구(134a,134b)를 갖는 형태로 구비된다. 여기서, 상기 유입구(133a,133b) 및 유출구(134a,134b)는 각각 2개로 구비되어 서로 다른 두 종류의 유체가 각각 유입구(133a) 및 유입파이프(121)를 통해 유체통로(S) 측으로 유입되어 다른 유입구(133b) 및 유입파이프(121)를 통해 유체통로(S) 측으로 유입된 유체와 열교환이 일어난 후 서로 다른 유출구(134a,134b)를 통해 외부로 다시 배출되도록 한다.The outer plates 131 and 132 are provided in a rectangular plate shape having a larger area than the heat transfer plate 110 and are coupled to the upper side and the lower side of the heat transfer assembly A, respectively. The outer plates 131 and 132 are provided to have a relatively thick thickness so that the plate heat exchanger according to the present invention can be used even at high temperature / high pressure. At this time, any one side 131 of the pair of outer plates (131, 132) is provided in the form having the inlet (133a, 133b) and the outlet (134a, 134b) in communication with the inlet pipe 121 and outlet pipe 122. do. Here, the inlets 133a and 133b and the outlets 134a and 134b are provided in two, respectively, and two different types of fluids are introduced into the fluid passage S through the inlets 133a and the inlet pipe 121, respectively. After the heat exchange with the fluid introduced into the fluid passage (S) through the other inlet (133b) and the inlet pipe 121 is made to be discharged again to the outside through different outlets (134a, 134b).

한편, 상기 외판(131,132)과 전열조립체(A)의 상,하부면 사이에는 외부와의 기밀성을 높일 수 있도록 도 2에 도시된 바와 같이 별도의 내판(150)이 추가적으로 구비될 수 있다. 이러한 내판(150)은 상기 외판(131,132)보다 상대적으로 얇은 두께를 갖도록 구비되며, 엠보싱 패턴으로 전열면(112)이 형성되는 전열판(110)이 외판(131,132)에 용이하게 적층될 수 있도록 지지하는 역할을 한다. 그리고, 상기 내판(150) 역시 네 모서리에 상기 유입파이프 및 유출파이프가 용접될 수 있도록 절개부(154a,154b,154c,154d)가 마련된다.
Meanwhile, a separate inner plate 150 may be additionally provided between the outer plates 131 and 132 and the upper and lower surfaces of the heat transfer assembly A to increase airtightness with the outside. The inner plate 150 is provided to have a thickness relatively thinner than the outer plate (131,132), and supports the heat transfer plate 110, the heat transfer surface 112 is formed in the embossed pattern to be easily stacked on the outer plate (131,132). Play a role. The inner plate 150 is also provided with cutouts 154a, 154b, 154c, and 154d at four corners such that the inlet pipe and the outlet pipe are welded.

본 발명에 의하면, 적층되는 전열판의 모서리 측에 절개부를 형성하고, 유체가 유,출입되는 개구부를 갖는 유,출입 파이프를 절개부에 직접 용접하여 열교환기를 제작함으로써 별도의 헤더박스를 부착할 필요가 없어 열교환기의 제작을 위한 용접량을 줄여 제조공정을 단순화함으로써 생산비용을 절감하고 생산성을 향상시킬 수 있는 효과가 있다.
According to the present invention, there is no need to attach a separate header box by forming a cutout at the corner of the heat transfer plate to be laminated, and directly manufacturing a heat exchanger by directly welding the oil / exit pipe having openings through which fluid flows in and out. There is an effect that can reduce the amount of welding for the production of heat exchanger to simplify the manufacturing process to reduce the production cost and improve the productivity.

상기에서 본 발명의 특정 실시예와 관련하여 도면을 참조하여 상세히 설명하였지만, 본 발명을 이와 같은 특정 구조에 한정하는 것은 아니다. 당 업계에서 통상의 지식을 가진 자라면 이하의 특허청구범위에 기재된 기술적 사상을 벗어나지 않고서도 용이하게 수정 또는 변경할 수 있을 것이다. 그러나 이러한 단순한 설계변형 또는 수정사항들은 모두 명백하게 본 발명의 권리범위 내에 속함을 미리 밝혀둔다.
While the foregoing is directed in detail to a particular embodiment of the invention with reference to the drawings, it is not intended to limit the invention to this specific construction. Those skilled in the art will be able to easily modify or change without departing from the technical spirit described in the claims below. However, all such simple design variations or modifications are clearly disclosed in advance within the scope of the present invention.

100 : 용접식 판형 열교환기
110 : 전열판 112 : 전열면
114a,114b,114c,114d : 절개부 116 : 제1플랜지
118 : 제2플랜지 A : 전열조립체
S : 유체통로 121 : 유입파이프
121a : 개구부 122 : 유출파이프
122a : 개구부 131,132 : 외판
133a,133b : 유입구 134a,134b : 유출구
141,142 : 측판 150 : 내판100: welded plate heat exchanger
110: heat transfer plate 112: heat transfer surface
114a, 114b, 114c, 114d: Incision 116: First flange
118: second flange A: heat transfer assembly
S: fluid passage 121: inlet pipe
121a: Opening 122: Outflow pipe
122a: opening 131,132: outer plate
133a, 133b: inlet 134a, 134b: outlet
141,142: side plate 150: inner plate

Claims (10)

사각판상의 전열면을 갖는 전열판이 적층되는 판형 열교환기에 있어서,
4개의 모서리에 각각 절개형성되는 절개부를 갖추고 유체통로가 형성되도록 상기 전열면이 서로 대향배치되어 상,하방향으로 적층되는 복수 개의 전열판으로 이루어진 전열조립체;
일측에 길이방향을 따라 절개형성되는 개구부를 갖추고, 상기 개구부를 통해 유체가 상기 유체통로 측으로 유,출입될 수 있도록 개구부 측이 유체통로와 연통되게 상기 절개부에 용접되는 유,출입 파이프; 및
상기 전열조립체의 상,하부에 각각 결합되는 외판;을 포함하는 용접식 판형 열교환기.In a plate heat exchanger in which a heat transfer plate having a heat transfer surface having a rectangular plate shape is laminated,
A heat transfer assembly having a plurality of heat transfer plates stacked in up and down directions with the heat transfer surfaces disposed to face each other such that fluid passages are formed to have cutouts formed at four corners;
An opening / exit pipe having an opening formed at one side in a longitudinal direction and welded to the cutout portion so that the opening side communicates with the fluid passage so that the fluid can flow into and out of the fluid passage through the opening; And
Welded plate heat exchanger comprising a; outer plate coupled to the upper and lower portions of the heat transfer assembly. 제 1항에 있어서,
상기 전열판은 양 단에 상기 전열면보다 높게 절곡형성되는 제1플랜지와 상기 전열면보다 낮게 절곡형성되는 제2플랜지가 구비되고, 상기 제1플랜지 및 제2플랜지가 서로 교대로 배치되어 상부에 배치되는 전열판의 제1플랜지와 하부에 배치되는 제2플랜지가 상호 용접되는 것을 특징으로 하는 용접식 판형 열교환기.The method of claim 1,
The heat transfer plate is provided at both ends with a first flange bent higher than the heat transfer surface and a second flange bent lower than the heat transfer surface, and the first flange and the second flange are alternately arranged to be disposed above Welded plate heat exchanger, characterized in that the first flange and the second flange disposed in the lower portion of the heat transfer plate are welded to each other. 제 2항에 있어서,
상기 절개부는 상기 제1플랜지 및 제2플랜지 상에 형성되는 것을 특징으로 하는 용접식 판형 열교환기.The method of claim 2,
The cut portion is welded plate heat exchanger, characterized in that formed on the first flange and the second flange. 제 2항에 있어서,
상기 제1플랜지 및 제2플랜지의 상호 접합은 심용접, CO2 용접, Tig 용접 또는 자동용접 중 어느 하나로 이루어지는 것을 특징으로 하는 용접식 판형 열교환기.The method of claim 2,
Weld plate heat exchanger, characterized in that the mutual bonding of the first flange and the second flange is any one of core welding, CO 2 welding, Tig welding or automatic welding. 제 1항에 있어서,
상기 전열조립체와 외판의 사이에는 외부와의 기밀성을 높일 수 있도록 내판이 추가적으로 구비되는 것을 특징으로 하는 용접식 판형 열교환기.The method of claim 1,
Welded plate heat exchanger characterized in that the inner plate is further provided between the heat transfer assembly and the outer plate to increase the airtightness with the outside. 제 1항에 있어서,
상기 전열조립체의 상,하부에 배치되는 외판 중 어느 일측에는 상기 유,출입 파이프와 각각 연통되는 유출구 및 유입구가 구비되는 것을 특징으로 하는 용접식 판형 열교환기.The method of claim 1,
Welded plate heat exchanger, characterized in that the one side of the outer plate disposed in the upper, lower portion of the heat transfer assembly is provided with an outlet and an inlet communicating with the oil, the inlet and outlet pipe respectively. 제 1항에 있어서,
상기 절개부와 유,출입 파이프는 용접부위가 외부로 노출되는 것을 특징으로 하는 용접식 판형 열교환기.The method of claim 1,
Welded plate heat exchanger, characterized in that the cutout and the oil, the access pipe is exposed to the outside of the weld. 제 1항에 있어서,
상기 유,출입 파이프는 다각단면, 원형단면 및 이들이 조합된 단면을 갖도록 형성되는 것을 특징으로 하는 용접식 판형 열교환기.The method of claim 1,
The oil-and-oil pipe is welded plate heat exchanger, characterized in that it is formed to have a polygonal cross section, a circular cross section and a cross section combined. 제 1항에 있어서,
상기 전열조립체의 전/후/좌/우에는 유체통로를 통해 이동되는 유체가 외부로 누설되는 것을 방지할 수 있도록 측판이 추가적으로 구비되는 것을 특징으로 하는 용접식 판형 열교환기.The method of claim 1,
Welded plate heat exchanger, characterized in that the side plate is further provided to prevent leakage of the fluid moving through the fluid passage to the front / rear / left / right of the heat transfer assembly. 제 1항에 있어서,
상기 전열면은 산부와 골부가 반복적으로 구비되는 엠보싱 패턴으로 형성되는 것을 특징으로 하는 용접식 판형 열교환기.The method of claim 1,
The heat transfer surface is a welded plate heat exchanger, characterized in that formed in the embossed pattern is provided with a peak and the valley portion repeatedly.
KR1020110097678A 2011-09-27 2011-09-27 A plate heat exchanger of welding type KR101149983B1 (en)

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PCT/KR2012/006937 WO2013048021A1 (en) 2011-09-27 2012-08-30 Welded plate heat exchanger
CN201280001006XA CN103119389A (en) 2011-09-27 2012-08-30 Welded plate heat exchanger

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