KR20230164952A - Heat exchanger manufacturing method for boiler - Google Patents
Heat exchanger manufacturing method for boiler Download PDFInfo
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- KR20230164952A KR20230164952A KR1020220064729A KR20220064729A KR20230164952A KR 20230164952 A KR20230164952 A KR 20230164952A KR 1020220064729 A KR1020220064729 A KR 1020220064729A KR 20220064729 A KR20220064729 A KR 20220064729A KR 20230164952 A KR20230164952 A KR 20230164952A
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- tube
- panel
- welding
- blister
- point
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- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000000034 method Methods 0.000 claims abstract description 89
- 238000003466 welding Methods 0.000 claims abstract description 66
- 238000012545 processing Methods 0.000 claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 238000012546 transfer Methods 0.000 claims description 28
- 238000003780 insertion Methods 0.000 claims description 21
- 230000037431 insertion Effects 0.000 claims description 21
- 238000005219 brazing Methods 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0012—Brazing heat exchangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/14—Heat exchangers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
본 발명은 프레스에서 압출된 물집판넬 사이에 구리박판을 개재한 후 레이져용접으로 가용접지점을 가공하여 보다 정밀하게 가공할 수 있고, 물집판의 외형 변형 없이 일체로 성형할 수 있는 보일러용 열교환기 제조방법에 관한 것이다.The present invention manufactures a heat exchanger for a boiler that can be processed more precisely by interposing a copper sheet between blister panels extruded from a press and then processing the tack welding points by laser welding, and can be integrally formed without deforming the external shape of the blister plate. It's about method.
Description
본 발명은 보일러용 열교환기 제조방법에 관한 것으로서, 보다 상세하게는 프레스에서 압출된 물집판넬이 물집판으로 성형시 구리박판을 물집판넬의 사이에 개재한 후 레이져용접으로 가용접지점을 용접하여 보다 정밀하게 가공할 수 있고, 물집판의 외형 변형 없이 일체로 성형할 수 있는 보일러용 열교환기 제조방법에 관한 것이다.The present invention relates to a method of manufacturing a heat exchanger for a boiler. More specifically, when a blister panel extruded from a press is molded into a blister plate, a copper sheet is interposed between the blister panels, and then the fusible welding points are welded by laser welding to achieve more precise It relates to a method of manufacturing a heat exchanger for a boiler that can be processed easily and integrally formed without deforming the external shape of the blister plate.
열교환기(Heat Exchanger)는 온도가 높은 유체로부터 전열벽을 통해서 온도가 낮은 유체에 열을 전달하는 장치이다. 즉, 서로 상이한 온도의 유체 사이에 열을 전달하도록 고안된 장치를 일컫는다.A heat exchanger is a device that transfers heat from a high temperature fluid to a low temperature fluid through a heat transfer wall. In other words, it refers to a device designed to transfer heat between fluids of different temperatures.
이러한, 열교환기는 냉장고, 에어컨, 보일러, 컴퓨터 냉각장치 등 다양한 분야에서 사용되고 있고, 열교환기가 응용되는 대표적인 냉장고는 차가워진 냉매를 냉장고 내부의 공기와 만나게 하여, 냉장고 내부의 높은 열을 차가운 냉매쪽으로 전달 할 수 있도록 고안한 장치이다. 물론 냉매와 냉장고 내부의 공기는 얇은금속 관으로 분리되어있다. 에어컨도 냉장고와 같은 원리로 프레온 가스와 같은 냉매와 방안의 공기간 열교환을 할 수 있도록 한 장치이다.These heat exchangers are used in various fields such as refrigerators, air conditioners, boilers, and computer cooling devices. Representative refrigerators in which heat exchangers are applied allow the cooled refrigerant to meet the air inside the refrigerator, thereby transferring the high heat inside the refrigerator to the cold refrigerant. It is a device designed to do this. Of course, the refrigerant and the air inside the refrigerator are separated by a thin metal tube. An air conditioner is a device that uses the same principle as a refrigerator to exchange heat between a refrigerant such as Freon gas and the air in the room.
난방 및 냉방을 목적으로 사용되는 열 교환기는 대부분이 냉매관(또는 튜브라고도 함)에 다수의 냉각 핀들이 삽입되는 형태인 핀-튜브(Fin-tube) 방식이 주종을 이루고 있고, 냉매가 냉매 관의 내부에서 순환하면서 냉매관을 통하여 외부 공기와의 열 교환이 이루어짐과 동시에 냉매관의 외측 면에 밀착 결합된 다수 개의 냉각 핀에 의해 열 교환 면적이 넓게 확대되어 열 교환이 급속하게 이루어진다.Most heat exchangers used for heating and cooling are of the fin-tube type, in which a number of cooling fins are inserted into a refrigerant pipe (or tube), and the refrigerant is pumped into the refrigerant pipe. As it circulates inside, heat exchange with external air occurs through the refrigerant pipe, and at the same time, the heat exchange area is widely expanded by a plurality of cooling fins tightly coupled to the outer surface of the refrigerant pipe, allowing rapid heat exchange.
이와 관련된 종래기술로 한국등록실용신안 제20-0284723호(2002.07.25.)에는 가정용 가스보일러의 열교환기가 개시되었다.As a related prior art, a heat exchanger for a household gas boiler was disclosed in Korea Registered Utility Model No. 20-0284723 (July 25, 2002).
상기 종래기술은, 도 1에 도시된 바와 같이, 연소실(A4) 하부에는 버너(A2)를 설치하고 상부에는 배기덕트(A3)를 설치하되, 버너(A2)와 배기덕트(A3) 사이의 연소실(A4) 내부에는 지그재그로 절곡된 물순환관(10)에 일정 간격으로 다수의 방열핀(32)을 형성한 통상의 가정용 가스보일러의 열교환기로서, 지그재그로 절곡된 물순환관(10)을 종방향으로 다수 배열하여, 각 물순환관의 양단부를 전, 후 각각의 연결관(20)에 용접이음하되, 각 물순환관(10)의 직선관부(10a)에는 일정 간격으로 방열핀(32)이 형성된 방열핀형성관(30)을 끼운 후 직선관부(10a)의 일측 단부에 끼워지는 고정판(40)의 고정부(42)에 방열핀형성관(30)의 일측 단부를 끼워서 고정한 것이 특징이다.In the prior art, as shown in FIG. 1, a burner (A2) is installed in the lower part of the combustion chamber (A4) and an exhaust duct (A3) is installed in the upper part, but the combustion chamber between the burner (A2) and the exhaust duct (A3) (A4) It is a heat exchanger of a typical household gas boiler in which a plurality of heat dissipation fins (32) are formed at regular intervals in a zigzag-bent water circulation pipe (10) inside, and the zigzag-bent water circulation pipe (10) is Arranged in multiple directions, both ends of each water circulation pipe are welded to the front and rear connection pipes 20, and heat radiation fins 32 are provided at regular intervals on the straight pipe portion 10a of each water circulation pipe 10. After inserting the formed heat dissipation fin forming tube 30, one end of the heat dissipating fin forming tube 30 is inserted and fixed to the fixing part 42 of the fixing plate 40 that is inserted into one end of the straight pipe part 10a.
다만, 상기한 종래기술은 물순환관(10)의 직선관부(10a)의 일측 단부에 끼워지는 고정판(40)에 방열핀형성관(30)이 끼움되어 고정됨으로써, 조립공정에 인력이 많이 투입되고, 상기 방열핀형성관(30)과 물순환관(10)이 분리되는 구조로 형성되어 열전달 효율이 떨어지는 문제점이 있었다.However, in the above-described prior art, the heat dissipation fin forming pipe 30 is fitted and fixed to the fixing plate 40 inserted into one end of the straight pipe portion 10a of the water circulation pipe 10, so a lot of manpower is invested in the assembly process. , there was a problem in that the heat transfer efficiency was low because the heat dissipation fin forming pipe 30 and the water circulation pipe 10 were formed in a separate structure.
본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위해 창작된 것으로 본 발명의 목적은 열전달핀과 튜브가 브레이징되어 일체로 형성되고, 물집판의 가용접시 레이져용접기에 입력된 도면을 기초로 점 용접점과, 선용접지점을 정해진 기준거리로 이격시켜 용접함으로써, 브레이징로에 투입 전 공정이 간소화되어 경제적으로 열교환기를 제조할 수 있는 보일러용 열교환기 제조방법을 제공함에 있다.The present invention was created to solve the problems of the prior art as described above. The purpose of the present invention is to form a heat transfer fin and a tube by brazing them as one piece, and to spot weld the blister plate based on a drawing input to the laser welder. By welding the points and line welding points at a set standard distance, the process before inputting the brazing furnace is simplified, thereby providing a method of manufacturing a heat exchanger for a boiler that can economically manufacture the heat exchanger.
상기한 목적을 달성하기 위한 본 발명에 의한 보일러용 열교환기 제조방법은 열매체가 지나는 튜브와, 상기 튜브의 양단부가 결합되는 물집판넬과, 상기 물집판넬의 측부에 결합되는 측부판넬과, 상기 튜브의 외주연에 결합되는 열전달핀과, 상기 물집판넬에 결합되는 소켓과, 상기 튜브의 양단부의 유로를 형성시키는 유로이음쇠를 가공하여 생산하는 부품가공공정과; 상기 열전달핀을 지그에 정해진 간격으로 안착시킨 후 상기 튜브를 상기 열전달핀의 삽입공에 강제삽입시키는 열전달핀삽입공정과; 상기 측부판넬과 튜브가 밀착된 상태로 고정한 후 가용접하는 측부판넬가공공정과; 상기 열전달핀에 결합된 튜브와, 상기 측부판넬에 결합된 튜브의 내부에 버플을 삽입시킨 후 상기 버플이 고정되도록 정량주입기로 페이스트 상태의 접합용제를 주입하는 버플삽입공정과; 상기 물집판넬을 구성하는 내외부 판넬 사이에 구리박판을 삽입시킨 후 정해진 지점을 레이저용접기로 가용접하는 물집판넬가용접공정과; 상기 물집판넬, 측부판넬, 튜브, 소켓 및 유로이음쇠를 가조립체로 결합된 상태로 고정하여 용접하는 조립가공공정과; 상기 조립가공공정에서 조립된 가조립체를 브레이징로에서 정해진 온도와 시간 동안 브레이징하는 브레이징공정;으로 이루어지고,A method of manufacturing a heat exchanger for a boiler according to the present invention to achieve the above object includes a tube through which a heat medium passes, a blister panel to which both ends of the tube are coupled, a side panel to be coupled to the side of the blister panel, and the tube. A parts processing process to produce a heat transfer fin coupled to the outer periphery, a socket coupled to the blister panel, and a flow path fitting that forms a flow path at both ends of the tube; a heat transfer fin insertion process of seating the heat transfer fins on a jig at predetermined intervals and then forcibly inserting the tube into the insertion hole of the heat transfer fin; A side panel processing process of fixing the side panel and the tube in close contact and then tack welding it; a buffle insertion process of inserting a baffle into the tube coupled to the heat transfer fin and the tube coupled to the side panel and then injecting a paste-like bonding solvent using a metering injector to fix the baffle; A blister panel tentative welding process of inserting a copper sheet between the inner and outer panels constituting the blister panel and then tack welding a designated point with a laser welder; An assembly processing process of fixing and welding the blister panel, side panel, tube, socket, and channel fitting in a combined state as a temporary assembly; It consists of a brazing process of brazing the temporary assembly assembled in the assembly processing process in a brazing furnace for a set temperature and time,
상기 물집판넬가용접공정에는 상기 레이저용접기에 입력된 도면데이터에서 내외부 판넬 사이가 밀착된 지점을 거리로 이격하여 가용접지점으로 사전에 선정하는 지점선정공정이 구비된 것을 특징으로 한다.The blister panel temporary welding process is characterized by a point selection process that selects in advance as a temporary welding point by separating the point where the inner and outer panels are in close contact from the drawing data input to the laser welder by a distance.
상기 조립가공공정에는 상기 물집판넬, 측부판넬, 튜브, 소켓 및 유로이음쇠의 결합된 상태가 고정되도록 접합용제를 주입하는 조립고정공정과, 상기 물집판넬, 측부판넬, 튜브, 소켓 및 유로이음쇠의 고정된 상태가 결합되도록 가용접하는 제2가용접공정이 구비된 것을 특징으로 한다.The assembly processing process includes an assembly and fixing process of injecting a bonding solvent to fix the combined state of the blister panel, side panel, tube, socket, and flow path fitting, and fixing the blister panel, side panel, tube, socket, and flow path fitting. It is characterized by a second tack welding process for tack welding so that the formed states are joined.
상기 가용접지점은 정해진 점으로 구성된 점 용접지점과, 정해진 길이로 연장된 선 용접지점으로 이루어진 것을 특징으로 한다.The temporary welding point is characterized by consisting of a spot welding point consisting of a fixed point and a line welding point extending to a fixed length.
상기 지점선정공정(S51)은 상기 가용접지점 간의 사이 거리가 사전에 정해진 기준이격거리를 기초로 정해지는 것을 특징으로 한다.The point selection process (S51) is characterized in that the distance between the temporary welding points is determined based on a predetermined standard separation distance.
이와 같이 본 발명에 의한 보일러용 열교환기 제조방법은 다음과 같은 효과는 브레이징로에 투입되는 물집판넬를 가공하기 위해 구리박판을 사이에 둔 내외부판낼이 서로 밀착되는 지점을 사전에 도면데이터에서 가용접지점으로 선정하여 레이져용접함으로써, 전기용접시 사람이 직접 용접지점을 선정하는 것보다 외형의 변형이 줄고, 불량율을 현저히 줄일 수 있고, 상기 가용접지점이 선 용접지점과 점 용접지점으로 구성되며 기준이격거리가 사전에 설정됨으로써, 용접시간이 대폭 줄일 수 있는 효과가 있다.As described above, the method of manufacturing a heat exchanger for a boiler according to the present invention has the following effects, in order to process the blister panel inputted into the brazing furnace, the point where the inner and outer panels with the copper sheet in between are in close contact with each other is previously designated as a fusible contact point in the drawing data. By selecting and laser welding, the deformation of the appearance is reduced and the defect rate can be significantly reduced compared to manually selecting the welding point during electric welding. The fusible welding point is composed of a line welding point and a spot welding point, and the standard separation distance is By being set in advance, the welding time can be significantly reduced.
도 1은 종래기술에 따른 가스보일러의 열교환기용 열교환기의 평면 예시도이고,
도 2는 본 발명에 따른 보일러용 열교환기 제조방법을 설명하는 순서도이며,
도 3은 본 발명에 따른 열전달핀삽입공정을 설명하는 사진이고,
도 4는 본 발명에 따른 측부판넬가공공정을 설명하는 사진이며,
도 5는 본 발명에 따른 버플삽입공정을 설명하는 사진이고,
도 6은 본 발명에 따른 물집판넬가용접공정을 설명하는 사진이며,
도 7은 본 발명에 따른 조립가공공정과, 브레이징공정을 설명하는 사진이고,
도 8은 본 발명에 따른 가용접지점을 설명하는 도면이다.1 is a plan illustration of a heat exchanger for a heat exchanger of a gas boiler according to the prior art;
Figure 2 is a flow chart explaining the method of manufacturing a heat exchanger for a boiler according to the present invention;
Figure 3 is a photograph illustrating the heat transfer fin insertion process according to the present invention,
Figure 4 is a photograph illustrating the side panel processing process according to the present invention;
Figure 5 is a photograph illustrating the buffel insertion process according to the present invention,
Figure 6 is a photograph illustrating the blister panel temporary welding process according to the present invention,
Figure 7 is a photograph illustrating the assembly processing process and brazing process according to the present invention;
Figure 8 is a diagram explaining a fusible welding point according to the present invention.
이하, 첨부된 도면을 참조하여 본 발명의 일 실시예를 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings.
본 발명에 따른 보일러용 열교환기 제조방법은, 도 2 내지 도 8에 도시된 바와 같이, 열매체가 지나는 튜브(10)와, 상기 튜브(10)의 양단부가 결합되는 물집판넬(11)과, 상기 물집판넬(11)의 측부에 결합되는 측부판넬(12)과, 상기 튜브(10)의 외주연에 결합되는 열전달핀(13)과, 상기 물집판넬(11)에 결합되는 소켓(14)과, 상기 튜브(10)의 양단부의 유로를 형성시키는 유로이음쇠(15)를 가공하여 생산하는 부품가공공정(S10)과; 상기 열전달핀(13)을 지그에 정해진 간격으로 안착시킨 후 상기 튜브(10)를 상기 열전달핀(13)의 삽입공에 강제삽입시키는 열전달핀삽입공정(S20)과; 상기 측부판넬(12)과 튜브(10)가 밀착된 상태로 고정한 후 가용접하는 측부판넬가공공정(S30)과; 상기 열전달핀(13)에 결합된 튜브(10)와, 상기 측부판넬(12)에 결합된 튜브(10)의 내부에 버플(B)을 삽입시킨 후 상기 버플(B)이 고정되도록 정량주입기로 페이스트 상태의 접합용제를 주입하는 버플삽입공정(S40)과; 상기 물집판넬(11)을 구성하는 내외부 판넬 사이에 구리박판을 삽입시킨 후 정해진 지점을 레이저용접기로 가용접하는 물집판넬가용접공정(S50)과; 상기 물집판넬(11), 측부판넬(12), 튜브(10), 소켓(14) 및 유로이음쇠(15)를 가조립체로 결합된 상태로 고정하여 용접하는 조립가공공정(S60)과; 상기 조립가공공정(S60)에서 조립된 가조립체를 브레이징로에서 정해진 온도와 시간 동안 브레이징하는 브레이징공정(S70);으로 이루어진다.As shown in FIGS. 2 to 8, the method of manufacturing a heat exchanger for a boiler according to the present invention includes a tube 10 through which a heat medium passes, a
상기 부품가공공정(S10)에는 버플(B) 등 열교환기에 필요한 다양한 부품들이 재단되고, 만들어지게 된다. 상기 유로이음쇠(15)는 반구형상으로 튜브(10) 한쌍의 외부를 감싸도록 결합되어, 한 쌍의 튜브(10)가 연결된 유로를 형성하도록 구성된다.In the parts processing process (S10), various parts necessary for the heat exchanger, such as buffels (B), are cut and made. The flow path fitting 15 is hemispherical and is coupled to surround the outside of a pair of tubes 10 to form a flow path in which the pair of tubes 10 are connected.
그리고, 상기 열전달핀삽입공정(S20)은 삽입공이 통공된 열전달핀(13)을 지그에 정해진 간격으로 안착시켜 한쪽 측부에서 상기 튜브(10)를 강제삽입하는 고정이고, 상기 측부판넬가공공정(S30)은 측부판넬(12)의 요홈에 튜브(10)가 안착된 상태를 고정한 상태에서 용접하는 공정이며, 상기 버플삽입공정(S40)에서 상기 버플(B)은 튜브(10)의 내부에 삽입되어 물이 원활히 순환되도록 튜브(10) 내부가 이물질이 침전되어 막히는 것을 방지하기 위한 구성이다.In addition, the heat transfer fin insertion process (S20) is a fixation of forcibly inserting the tube 10 from one side by seating the heat transfer pins 13 with insertion holes at predetermined intervals in a jig, and the side panel processing process (S30) ) is a welding process in which the tube 10 is seated and fixed in the groove of the side panel 12, and in the buffle insertion process (S40), the buffel (B) is inserted into the inside of the tube 10. It is designed to prevent foreign substances from settling and clogging the inside of the tube 10 so that water circulates smoothly.
또한, 상기 물집판넬가용접공정(S50)에는 상기 레이저용접기에 입력된 도면데이터에서 내외부 판넬 사이가 밀착된 지점을 정해진 거리로 이격하여 가용접지점(S)으로 사전에 선정하는 지점선정공정(S51)이 구비됨으로써, 사용자가 직접 물집판넬 제작에 관여하는 것을 최소화시켜 상기 물집판넬의 품질이 개선되게 된다.In addition, the blister panel temporary welding process (S50) includes a point selection process (S51) in which the point where the internal and external panels are in close contact from the drawing data input to the laser welder is spaced at a predetermined distance and is selected in advance as a temporary contact point (S). By being provided, the quality of the blister panel is improved by minimizing the user's direct involvement in manufacturing the blister panel.
한편, 상기 조립가공공정(S60)에는 상기 물집판넬(11), 측부판넬(12), 튜브(10), 소켓(14) 및 유로이음쇠(15)의 결합된 상태가 고정되도록 접합용제를 주입하는 조립고정공정(S61)과, 상기 물집판넬(11), 측부판넬(12), 튜브(10), 소켓(14) 및 유로이음쇠(15)의 고정된 상태가 결합되도록 가용접하는 제2가용접공정(S62)이 구비된다. 여기서 상기 제2가용접공정(S62)은 필요에 따라 페이스트 상태의 접합용제를 결합부위에 먼저 도포한 후 진행할 수 있다.Meanwhile, in the assembly processing process (S60), a joining solvent is injected to fix the combined state of the
그리고, 상기 가용접지점(S)은 정해진 점으로 구성된 점 용접지점(S1)과, 정해진 길이로 연장된 선 용접지점(S2)으로 이루어진다.In addition, the temporary welding point (S) consists of a spot welding point (S1) consisting of a fixed point, and a line welding point (S2) extending to a fixed length.
상기 지점선정공정(S51)은 상기 가용접지점(S) 간의 사이 거리가 사전에 정해진 기준이격거리(T)를 기초로 정해진다. 즉 상기 가용접지점(S) 간의 사이 거리는 기준이격거리(T)와 같거나, 기준이격거리(T) + ▽T, 보다 작게 설정되게 구성됨으로써, 물집판넬에서 용접지점이 과이격되거나, 너무 근접하여 배치되는 것을 방지하게 된다. 여기서, ▽T는 기준이격거리(T)의 최대 증가분이다.In the point selection process (S51), the distance between the welding points (S) is determined based on a predetermined reference distance (T). That is, the distance between the welding points (S) is set to be equal to the standard separation distance (T) or smaller than the standard separation distance (T) + ▽T, so that the welding points in the blister panel are overly spaced or too close to each other. This prevents placement. Here, ▽T is the maximum increase in the standard separation distance (T).
상기와 같은 구성으로 이루어진 본 발명에 따른 보일러용 열교환기 제조방법의 작용을 살펴보면 아래와 같다.The operation of the method for manufacturing a heat exchanger for a boiler according to the present invention configured as described above is as follows.
본 발명에 따른 보일러용 열교환기 제조방법은, 도 2 내지 도 8에 도시된 바와 같이, 부품가공공정(S10)에서 프레스나 재단기 등을 이용하여 튜브(10), 물집판넬(11), 측부판넬(12), 열전달핀(13), 소켓(14), 유로이음쇠(15) 및 버플(B) 등을 가공하게 된다. 그리고, 열전달핀삽입공정(S20)에서 이격간격이 정해진 지그에 상기 열전달핀(13)을 안착시킨 후 측부에서 상기 튜브(10)를 억지끼움 형식으로 삽입시키게 된다.As shown in Figures 2 to 8, the method of manufacturing a heat exchanger for a boiler according to the present invention is to manufacture the tube 10, the
그리고, 측부판넬가공공정(S30)과 버플삽입공정(S40) 및 물집판넬가용접공정(S50)을 수행하게 되는데, 상기 측부판넬가공공정(S30)과 버플삽입공정(S40) 및 물집판넬가용접공정(S50)은 서로 독립적으로 진행됨으로 버플삽입공정(S40)이 진행되며 상기 측부판넬가공공정(S30)과 물집판넬가용접공정(S50)이 수행될 수 있다.Then, the side panel processing process (S30), the baffle insertion process (S40), and the blister panel temporary welding process (S50) are performed. The side panel processing process (S30), the baffle insertion process (S40), and the blister panel temporary welding process ( Since S50) is carried out independently of each other, the baffle insertion process (S40) is carried out, and the side panel processing process (S30) and the blister panel temporary welding process (S50) can be performed.
이와 같은 측부판넬가공공정(S30)과 버플삽입공정(S40) 및 물집판넬가용접공정(S50)에서 부품이 추가로 가공된 후 가공된 물집판넬(11), 측부판넬(12), 튜브(10), 소켓(14) 및 유로이음쇠(15)를 가조립체로 결합된 상태로 고정하여 용접하는 조립가공공정(S60)을 수행한 후 가조립체를 브레이징로에서 정해진 온도와 시간 동안 브레이징하는 브레이징공정(S70)을 수행한 후 제작을 완료하게 된다.After the parts are further processed in this side panel processing process (S30), baffle insertion process (S40), and blister panel temporary welding process (S50), the processed blister panel (11), side panel (12), and tube (10) are processed. , After performing an assembly processing process (S60) in which the
이때, 상기 물집판넬가용접공정(S50)의 지점선정공정(S51)에서는 점 용접지점(S1)과 선 용접지점(S2)으로 이루어진 가용접지점(S)을 선정하기 위해 레이저용접기에 도면데이터를 입력하고, 내외부 판넬 사이가 밀착된지점을 상기 가용접지점(S)로 선정하여 물집판넬을 레이져용접기로 가용접하게 된다.At this time, in the point selection process (S51) of the blister panel temporary welding process (S50), drawing data is entered into the laser welder to select the temporary welding point (S) consisting of the spot welding point (S1) and the line welding point (S2). , the point where the inner and outer panels are in close contact is selected as the tack welding point (S), and the blister panel is tack welded with a laser welder.
이와 같이, 본 발명에 따른 보일러용 열교환기 제조방법은 약 1100℃ 정도의 온도에서 하루정도 브레이징로에서 브레이징하여 열교환기를 제조하며, 작업자가 최소화되게 관여하는 지점선정공정(S51)을 수행하여 외관의 변형이 적고, 견고한 열교환기를 제조할 수 있게 된다.As such, the method of manufacturing a heat exchanger for a boiler according to the present invention manufactures a heat exchanger by brazing it in a brazing furnace for about a day at a temperature of about 1100°C, and performs a point selection process (S51) in which workers are minimally involved to improve the appearance of the heat exchanger. It is possible to manufacture a heat exchanger with little deformation and robustness.
본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the specific preferred embodiments described above, and various modifications can be made by anyone skilled in the art without departing from the gist of the invention as claimed in the claims. Of course, such changes are within the scope of the claims.
<도면의 주요부분에 대한 부호의 설명>
10 : 튜브
11 : 물집판넬
12 : 측부판넬
13 : 열전달핀
14 : 소켓
15 : 유로이음쇠
S10 : 부품가공공정
S20 : 열전달핀삽입공정
S30 : 측부판넬가공공정
S40 : 버플삽입공정
S50 : 물집판넬가용접공정
S51 : 지점선정공정
S60 : 조립가공공정
S61 : 조립고정공정
S62 : 제2가용접공정
S70 : 브레이징공정
B : 버플
S : 가용접지점
S1 : 점 용접지점
S2 : 선 용접지점
T : 기준이격거리<Explanation of symbols for main parts of the drawing>
10: tube 11: blister panel
12: side panel 13: heat transfer fin
14: Socket 15: Euro fitting
S10: Parts processing process S20: Heat transfer pin insertion process
S30: Side panel processing process S40: Buffle insertion process
S50: Blister panel tack welding process S51: Branch selection process
S60: Assembly processing process S61: Assembly fixing process
S62: Second tack welding process S70: Brazing process
B: Buffle S: Temperature welding point S1: Spot welding point
S2: Line welding point T: Standard separation distance
Claims (4)
상기 열전달핀(13)을 지그에 정해진 간격으로 안착시킨 후 상기 튜브(10)를 상기 열전달핀(13)의 삽입공에 강제삽입시키는 열전달핀삽입공정(S20)과;
상기 측부판넬(12)과 튜브(10)가 밀착된 상태로 고정한 후 가용접하는 측부판넬가공공정(S30)과;
상기 열전달핀(13)에 결합된 튜브(10)와, 상기 측부판넬(12)에 결합된 튜브(10)의 내부에 버플(B)을 삽입시킨 후 상기 버플(B)이 고정되도록 정량주입기로 페이스트 상태의 접합용제를 주입하는 버플삽입공정(S40)과;
상기 물집판넬(11)을 구성하는 내외부 판넬 사이에 구리박판을 삽입시킨 후 정해진 지점을 레이저용접기로 가용접하는 물집판넬가용접공정(S50)과;
상기 물집판넬(11), 측부판넬(12), 튜브(10), 소켓(14) 및 유로이음쇠(15)를 가조립체로 결합된 상태로 고정하여 용접하는 조립가공공정(S60)과;
상기 조립가공공정(S60)에서 조립된 가조립체를 브레이징로에서 정해진 온도와 시간 동안 브레이징하는 브레이징공정(S70);으로 이루어지고,
상기 물집판넬가용접공정(S50)에는
상기 레이저용접기에 입력된 도면데이터에서 내외부 판넬 사이가 밀착된 지점을 정해진 거리로 이격하여 가용접지점(S)으로 사전에 선정하는 지점선정공정(S51)이 구비된 것을 특징으로 하는 보일러용 열교환기 제조방법.A tube 10 through which the heat medium passes, a blister panel 11 to which both ends of the tube 10 are coupled, a side panel 12 to be coupled to the side of the blister panel 11, and the tube 10. A part produced by processing a heat transfer fin (13) coupled to the outer periphery, a socket (14) coupled to the blister panel (11), and a flow path fitting (15) that forms a flow path at both ends of the tube (10). Processing process (S10);
A heat transfer pin insertion process (S20) of seating the heat transfer fins 13 on a jig at predetermined intervals and then forcibly inserting the tube 10 into the insertion hole of the heat transfer fin 13;
A side panel processing process (S30) in which the side panel 12 and the tube 10 are fixed in close contact and then tack-welded;
After inserting the baffle (B) into the tube (10) coupled to the heat transfer fin (13) and the tube (10) coupled to the side panel (12), a metering injector is used to fix the baffle (B). A baffle insertion process (S40) of injecting a paste-like bonding solvent;
A blister panel tentative welding process (S50) of inserting a copper sheet between the inner and outer panels constituting the blister panel 11 and then tack welding a designated point with a laser welder;
An assembly processing process (S60) of fixing and welding the blister panel (11), the side panel (12), the tube (10), the socket (14), and the flow path fitting (15) in a temporarily assembled state;
It consists of a brazing process (S70) in which the provisional assembly assembled in the assembly processing process (S60) is brazed in a brazing furnace for a set temperature and time,
In the blister panel temporary welding process (S50),
Manufacture of a heat exchanger for a boiler, characterized in that a point selection process (S51) is provided in advance to select the point where the internal and external panels are in close contact as the welding point (S) by spacing it out at a predetermined distance from the drawing data input to the laser welder. method.
상기 조립가공공정(S60)에는
상기 물집판넬(11), 측부판넬(12), 튜브(10), 소켓(14) 및 유로이음쇠(15)의 결합된 상태가 고정되도록 접합용제를 주입하는 조립고정공정(S61)과, 상기 물집판넬(11), 측부판넬(12), 튜브(10), 소켓(14) 및 유로이음쇠(15)의 고정된 상태가 결합되도록 가용접하는 제2가용접공정(S62)이 구비된 것을 특징으로 하는 보일러용 열교환기 제조방법.According to paragraph 1,
In the assembly processing process (S60),
An assembly fixing process (S61) of injecting a bonding solvent to fix the combined state of the blister panel 11, the side panel 12, the tube 10, the socket 14, and the flow path fitting 15, and the blister A second tack welding process (S62) is provided for tack welding the panel 11, the side panel 12, the tube 10, the socket 14, and the flow path fitting 15 so that the fixed state is combined. Method of manufacturing heat exchanger for boiler.
상기 가용접지점(S)은
정해진 점으로 구성된 점 용접지점(S1)과, 정해진 길이로 연장된 선 용접지점(S2)으로 이루어진 것을 특징으로 하는 보일러용 열교환기 제조방법.According to paragraph 1,
The fusible welding point (S) is
A method of manufacturing a heat exchanger for a boiler, characterized in that it consists of a point welding point (S1) consisting of a fixed point, and a line welding point (S2) extending to a fixed length.
상기 지점선정공정(S51)은
상기 가용접지점(S) 간의 사이 거리가 사전에 정해진 기준이격거리(T)를 기초로 정해지는 것을 특징으로 하는 보일러용 열교환기 제조방법.According to paragraph 3,
The branch selection process (S51) is
A method of manufacturing a heat exchanger for a boiler, characterized in that the distance between the temporary welding points (S) is determined based on a predetermined standard separation distance (T).
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