KR870002434A - Heat transfer fin (fin) of heat transfer apparatus, manufacturing method and manufacturing apparatus therefor - Google Patents

Heat transfer fin (fin) of heat transfer apparatus, manufacturing method and manufacturing apparatus therefor Download PDF

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Publication number
KR870002434A
KR870002434A KR1019860006920A KR860006920A KR870002434A KR 870002434 A KR870002434 A KR 870002434A KR 1019860006920 A KR1019860006920 A KR 1019860006920A KR 860006920 A KR860006920 A KR 860006920A KR 870002434 A KR870002434 A KR 870002434A
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South Korea
Prior art keywords
heat transfer
fin
tube
forming
pin
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KR1019860006920A
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Korean (ko)
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KR940007196B1 (en
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더블유. 애버트 로이
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폴 제이. 레미유
알칸 인터내셔널 리미티드
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes

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

Abstract

내용 없음No content

Description

열전달장치의 열전달핀(fin)과 그 제조방법 및 제조장치Heat transfer fin (fin) of heat transfer apparatus, manufacturing method and manufacturing apparatus therefor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 원통형튜브 위에 장착되는 루우프형상의 핀구조체가 제작되어지는 과정을 도시한 본 발명장치의 사시도.1 is a perspective view of the present invention showing a process in which a loop-shaped fin structure mounted on a cylindrical tube is manufactured.

제2도는 루우프형상의 핀구조체가 튜브위에 장착되는 상태를 나타내는 부분확대 사시도.2 is a partially enlarged perspective view showing a state in which a loop-shaped fin structure is mounted on a tube.

제2A도는 제2도의 2A-2A선 단면도.FIG. 2A is a cross-sectional view taken along the line 2A-2A of FIG. 2. FIG.

제2B도는 제2도의 A2A측에서 본 핀구조물에 대한 정면도.FIG. 2B is a front view of the fin structure seen from the A2A side of FIG.

제3A도는 제1도 및 제2도에 나타낸 핀집합체의 단면도.3A is a cross-sectional view of the pin assembly shown in FIG. 1 and FIG.

제3B도 내지 제3D도는 본 발명에 따른 핀의 구조에 대한 다른 실시예의 단면도.3B-3D are cross-sectional views of another embodiment of the structure of a fin according to the present invention.

도면의 주요부분에 대한 부호설명Explanation of Signs of Major Parts of Drawings

1-금속코일 2-금속스트립 3-루우프핀 4-튜브1-metal coil 2-metal strip 3-loop pin 4-tube

4a-튜브외면 5-화살표 6,7-절단로울러 8,8a,9,9a-플랜지4a tube outer 5-arrow 6,7-cut roller 8,8a, 9,9a-flange

10-핀의예비성형체 10a,10b-레그부재 10c-브릿지부재 10d-중간부재10-pin preform 10a, 10b-leg member 10c-bridge member 10d-intermediate member

10r-경사반경 10s-브릿지부재 11-슬릿트 11A-안내로울러10r-slope radius 10s-bridge member 11-slit 11A-guide roller

12,13,13a,13b-로울러 12s,13s-압착부 14-공간 15-테이블12,13,13a, 13b-roller 12s, 13s-compression 14-space 15-table

16-화살표 17-메니스커스(meniscus) 18-기어잇빨 19,20-라인16-arrow 17-meniscus 18-gear teeth 19,20-line

20A-아이들러로울러20A-idler

Claims (37)

열전달 매체가 흐르는 튜브(4)로 방열 혹은 상기 튜브로 부터 흡열하기 위하여 상기 튜브(4)상에 각날개의 핀이 방사형으로 배치되도록 일체로 된 전열체의 루우프핀체인이 상기 튜브주위에 나선식으로 감긴 열전달장치에 있어서, 상기 루우프핀(3)은 이의 대향하는 양쪽선단에서 바깥쪽으로 뻗어있는 한쌍의 설치플랜지(8,9)를 갖추고서 상호열이 전달될 수 있게 설치플랜지(8,9)부분이 튜브(4)에 결합되도록 튜브(4)둘레에 텐션을 받으며 감겨져 밀착고정되고, 상기 설치플랜지(8,9)로부터 바깥쪽으로 간격을 두고 뻗어나온 2개의 레그부재(10a,10b)가 브릿지부재(10c)에 의해 이의선단에서 상호연결되어 칫수의 크기를 갖게 한 것을 특징으로 하는 열전달장치.A looped pin chain of a heat-transfer body integrally formed so that the fins of each blade are radially disposed on the tube 4 to radiate heat to or absorb heat from the tube 4 through which the heat transfer medium flows. In the wound heat transfer apparatus, the loop pins (3) have a pair of mounting flanges (8, 9) extending outwardly from opposite opposing ends thereof so that mutual heat can be transferred. Two leg members (10a, 10b) are wound and tensioned around the tube (4) so that the part is coupled to the tube (4), the legs extending out at intervals outwardly from the installation flange (8, 9) bridge A heat transfer device, characterized in that it is interconnected at its distal end by a member (10c) to have a size of dimension. 제1항에 있어서, 루우프핀(3)은 플랜지(8,9)의 길이방향으로 약 1∼1.5% 정도 신장시키기에 충분한 텐션을 가지고서 튜브(4)둘레에 감겨지도록 된 것을 특징으로 하는 열전달장치.The heat transfer apparatus according to claim 1, wherein the loop pins 3 are wound around the tube 4 with a tension sufficient to extend about 1 to 1.5% in the longitudinal direction of the flanges 8 and 9. . 제1항에 있어서, 루우프핀(3)은 예비성형체(10)가 가공로울러(12,13) 사이를 지나면서 레그부재(10a,10b)와 브릿지부재(10c)를 갖춘 U자형 단면의 체인형으로 가공되는 것을 특징으로 하는 열전달장치.The loop pin (3) according to claim 1, wherein the loop pin (3) has a U-shaped cross-section having a leg member (10a, 10b) and a bridge member (10c) as the preform 10 passes between the processing rollers (12, 13) Heat transfer apparatus, characterized in that processed to. 제3항에 있어서, 루우프핀(3)은 플랜지의 길이방향을 약 1∼2.5%정도 신장되도록 텐션을 받는 것을 특징으로 하는 열전달장치.4. The heat transfer device according to claim 3, wherein the loop pins (3) are tensioned to extend about 1 to 2.5% of the flange in the longitudinal direction. 제3항에 있어서, 상기 핀의 레그부재(10a,10b)는 튜브(4)에 대해 원칙적으로 수직을 이루도록 한 것을 특징으로 하는 열전달장치.4. Heat transfer device according to claim 3, wherein the leg members (10a, 10b) of the fins are in principle perpendicular to the tube (4). 제1항에 있어서, 루우프핀(3)의 재질은 알루미늄인 것을 특징으로 하는 열전달장치.The heat transfer apparatus according to claim 1, wherein the material of the loop pin (3) is aluminum. 제3항에 있어서, 핀의 브릿지부재(10c)는 튜브(4)의 외면(4a)에 대해 일정한 간격을 갖는 수평을 이루도록 한 것을 특징으로 하는 열전달장치.The heat transfer apparatus according to claim 3, wherein the bridge member (10c) of the fin is made horizontal with a constant distance with respect to the outer surface (4a) of the tube (4). 제3항에 있어서, 핀의 레그부재(10a,10b)와 브릿지부재(10c)의 연결모서리부에 경사반경(10r)을 갖춘 것을 특징으로 하는 열전달장치.4. The heat transfer apparatus according to claim 3, wherein an inclination radius (10r) is provided at the connecting edges of the leg members (10a, 10b) of the fin and the bridge member (10c). 제8항에 있어서, 브릿지부재(10s)는 핀의 레그부재(10a,10b)에 중간부분으로 연결되어져 원호상을 이루도록 한 것을 특징으로 하는 열전달장치.The heat transfer apparatus according to claim 8, wherein the bridge member (10s) is connected to the leg members (10a, 10b) of the fin in an intermediate portion to form an arc shape. 제9항에 있어서, 브릿지부재(10s)는 일반적인 원호형태로 된 레그부재(10a,10b)로서 반원호형부분에 몰입되어 있는 것을 특징으로 하는 열전달장치.10. The heat transfer apparatus according to claim 9, wherein the bridge member (10s) is immersed in a semi-circular arc portion as leg members (10a, 10b) having a general arc shape. 제9항에 있어서, 핀의 레그부재(10a,10b)와 플랜지(8,9)는 상기 핀사이에서 성애가 최소로 발생되도록 적절한 크기로 설정되어지는 것을 특징으로 하는 열전달장치.10. The heat transfer apparatus according to claim 9, wherein the leg members (10a, 10b) of the fin and the flange (8, 9) are set to an appropriate size so as to minimize the generation of frost between the fins. 제11항에 있어서, 핀의 레그부재(10a,10b) 사이의 거리는 튜브(4)상에 감겨지는 핀의 나선형 열사이의 거리와 원칙적으로 같도록 된 것을 특징으로 하는 열전달장치.12. The heat transfer apparatus according to claim 11, wherein the distance between the leg members (10a, 10b) of the fin is in principle equal to the distance between the helical rows of fins wound on the tube (4). 제11항에 있어서, 튜브(4)의 외면(4a)으로 부터 핀의 브릿지부재(10c)의 최외각 까지의 거리는 상기 튜브(4)의 직경과 거의 같도록 한 것을 특징으로 하는 열전달장치.12. The heat transfer device according to claim 11, wherein the distance from the outer surface (4a) of the tube (4) to the outermost angle of the bridge member (10c) of the fin is approximately equal to the diameter of the tube (4). 열전달유체가 흐르는 튜브(4)의 온도조절용으로써 상기 튜브(4)둘레에 설치되는 핀을 성형시키기 위한 열전도 물질인 금속스트립(2)을 이용한 열전달핀의 성형방법에 있어서,In the method of forming a heat transfer fin using a metal strip (2), which is a heat conducting material for forming a fin installed around the tube (4) for controlling the temperature of the tube (4) through which a heat transfer fluid flows, (a) 상기 금속스트립(2)을 폭방향으로 관통홈을 내어 슬릿트(11)를 형성시키되 양폭선단에는 슬릿트가 없이 연속된 플랜지(8,9)부분을 형성시켜서 단면이 운하형태의 U자형을 이루는 중간 형성과정인 핀의 예비성형체(10)를 만들고,(a) forming a slit 11 by penetrating the metal strip 2 in the width direction, and forming a continuous flange (8, 9) without slit at both ends of the width so that the cross section is a canal U To make a preform (10) of the fin forming the intermediate forming process, (b) 이 핀의 예비성형체(10)를 신장가공시켜서 두 레그부재(10a,10b)와 이 레그부재(10a,10b)를 선단에서 연결시켜 주는 브릿지부재(10c)를 갖추도록 하여 루우프핀(3)으로 만든 뒤,(b) The preform 10 of this pin is elongated to provide two leg members 10a and 10b and a bridge member 10c which connects the leg members 10a and 10b at their ends. 3) then made of (c) 상기 루우프 핀(3)을 텐션을 주면서 축회전하는 튜브(4) 둘레에 감아 순차적으로 핀을 성형하는 것을 특징으로 하는 열전달핀의 성형방법.(c) The method of forming a heat transfer fin, characterized in that the loop is wound around the tube (4) axially rotated while tensioning the pin (3). 제14항에 있어서, 튜브(4)둘레에 감겨주는 루우프 핀(3)은 플랜지(8,9)의 길이로 약 1∼1.5%정도 늘어나기에 충분한 힘을 갖도록 텐션을 받도록 한 것을 특징으로 하는 열전달판의 성형방법.15. Heat transfer according to claim 14, characterized in that the loop pins (3) wound around the tube (4) are tensioned to have a sufficient force to extend by about 1 to 1.5% by the length of the flanges (8, 9). Forming method of the plate. 제14항에 있어서, 신장가공시에 금속스트립(2)에 주어지는 텐션은 플랜지의 길이로 약 1∼2.5% 늘어 나는 정도의 크기로 작용하는 것을 특징으로 하는 열전달핀의 성형방법.15. The method of forming a heat transfer fin according to claim 14, wherein the tension applied to the metal strip (2) during extension processing acts as about 1 to 2.5% of the length of the flange. 제14항에 있어서, 핀의 예비성형체(10)는 그 단면이 U자형을 이루는 것을 특징으로 하는 열전달핀의 성형방법.15. The method of claim 14, wherein the preform (10) of the fin is U-shaped in cross section. 제14항에 있어서, 슬릿트(11)는 금속스트립(2)이 로울러(6과 7)의 잇빨사이에 끼워져 나오면서 성형되며, 그에 따른 플랜지 부분에 작용하는 텐션과 슬릿트(11)의 중앙부에 상기 로울러(6,7)에 의해서 작용하는 압력을 슬릿트 부분이 숫나사 로울러에 밀착되어 나오면서 U자형태로 가공되어지도록 작용하는 것을 특징으로 하는 열전달핀의 성형방법.15. The slit 11 according to claim 14, wherein the slit 11 is shaped as the metal strip 2 is sandwiched between the teeth of the rollers 6 and 7, and accordingly the tension and the central part of the slit 11 acting on the flange portion. The method of forming a heat transfer fin, characterized in that the pressure acting by the roller (6, 7) acts to be processed in a U-shape while the slit portion comes in close contact with the male roller. 제18항에 있어서, 신장가공은 천공된 슬릿트(11)부분의 중심이 80°와 90°의 각도로 숫나사 커터로울러에 밀착될 때 이루어지도록 한 것을 특징으로 하는 열전달핀의 성형방법.19. The method of claim 18, wherein the stretching is performed when the center of the perforated slit portion is in close contact with the male screw roller at an angle of 80 ° and 90 °. 제19항에 있어서, 각도는 85°인 것을 특징으로 하는 열전달핀의 성형방법.20. The method of claim 19, wherein the angle is 85 degrees. 제18항에 있어서, 숫나사 절단로울러(6)는 중앙가공부와 이 중앙가공부의 양측에 형성시킨 플랜지를 갖추고, 금속스트립(2)은 상기 플랜지와 절단로울러(7)상에 형성된 플랜지 사이에 물려져 구동됨에 따라 당겨지도록 된 것을 특징으로 하는 열전달핀의 성형방법.19. The male threaded cutting roller (6) has a central machining portion and a flange formed on both sides of the central machining portion, and the metal strip (2) is clamped between the flange and the flange formed on the cutting roller (7). Forming method of the heat transfer fin, characterized in that pulled as driven. 제14항에 있어서, 두 레그부재(10a,10b)는 튜브(4)에 대해 수직인 것을 특징으로 하는 열전달핀의 성형방법.15. The method according to claim 14, wherein the two leg members (10a, 10b) are perpendicular to the tube (4). 제14항에 있어서, 루우프 핀(3)은 알루미늄 재질인 것을 특징으로 하는 열전달핀의 성형방법.15. The method of claim 14, wherein the loop fins are made of aluminum. 제14항에 있어서 핀의 브릿지부재(10c)는 튜브(4)의 외면(4a)에 대해 수평을 이루며 감겨지는 것을 특징으로 하는 열전달핀의 성형방법.15. The method of claim 14, wherein the bridge member (10c) of the fin is wound horizontally with respect to the outer surface (4a) of the tube (4). 제24항에 있어서, 핀의 브릿지부재(10c)는 레그부재(10a,10b)와 브릿지부재(10c)사이의 이음점이 되는 경사반경(10r)을 갖춘 것을 특징으로 하는 열전달핀의 성형방법.25. The method of claim 24, wherein the bridge member (10c) of the fin has an inclined radius (10r) that is a joint between the leg members (10a, 10b) and the bridge member (10c). 제14항에 있어서, 핀의 레그부재(10a,10b)의 선단을 연결하는 브릿지부재(10c)는 중간부재(10d)를 갖춘 것을 특징으로 하는 열전달핀의 성형방법.15. The method of claim 14, wherein the bridge member (10c) connecting the ends of the leg members (10a, 10b) of the fin comprises an intermediate member (10d). 제14항에 있어서, 브릿지부재(10s)는 일반적인 반원형태로 상기 브릿지 및 레그부재(10a,10b)에 연결되는 것을 특징으로 하는 열전달핀의 성형방법.15. The method of claim 14, wherein the bridge member (10s) is connected to the bridge and leg members (10a, 10b) in a general semicircle form. 제14항에 있어서, 레그부재(10a,10b)와 플랜지(8,9)는 성애발생을 최대한으로 억제시키기 위한 적절한 크기를 갖춘 것을 특징으로 하는 열전달핀의 성형방법.15. The method according to claim 14, wherein the leg members (10a, 10b) and the flanges (8, 9) are of an appropriate size to suppress erosion to the maximum. 제28항에 있어서, 핀의 레그부재(10a,10b)사이의 거리는 튜브(4)상에 감겨지는 핀의 나선열 사이의 거리와 같도록 된 것을 특징으로 하는 열전달핀의 성형방법.29. The method of claim 28, wherein the distance between the leg members (10a, 10b) of the fin is equal to the distance between the spiral rows of the fin wound on the tube (4). 제28항에 있어서, 튜브(4)의 외면(4a)에서 가장 외곡부의 브릿지부재(10c)에 까지의 핀의 높이는 튜브(4)의 직경과 거의 같은 것을 특징으로 하는 열전달핀의 성형방법.29. The method of claim 28, wherein the height of the fin from the outer surface (4a) of the tube (4) to the bridge member (10c) of the outermost portion is approximately equal to the diameter of the tube (4). 금속스트립(2)을 공급할 로울러(6,7)를 갖추고서 열전달핀을 성형시키기 위한 장치에 있어서,In the apparatus for forming heat transfer fins with rollers 6, 7 to supply metal strips 2, (a) 상기 금속스트립(2)에 핀의 중간형성 과정으로써 슬릿트(11)와 지지플랜지(8,9)부분을 성형시킨 핀의 예비성형체(10)를 만들도록 하기 위하여 기어잇빨(8)을 갖춘 상기 로울러(6,7).(a) Gear teeth (8) in order to form a preform (10) of the pin formed by forming the slit (11) and the support flange (8, 9) as the intermediate formation process of the pin on the metal strip (2) Equipped with the roller (6,7). (b) 상기 플랜지(8,9)가 마련된 핀의 예비성형체(10)에다 2개의 레그부재(10a,10b)와 브릿지부재(10c)를 성형시켜 루우프핀(3)을 만들기 위한 로울러(12,13),(b) Roller 12 for forming loop pin 3 by forming two leg members 10a, 10b and bridge member 10c on preform 10 of pins provided with flanges 8, 9; 13), (c) 튜브(4)를 구동 이송시키는 장치,(c) drive conveying the tube (4), (d) 상기 루우프 핀(3)을 튜브(4)의 축방향으로 나선형으로 감아주기 위한 장치 등으로 구성된 열전달핀 성형장치.(d) a heat transfer fin forming apparatus comprising a device for spirally winding the loop pin 3 in the axial direction of the tube 4. 제31항에 있어서, 금속스트립(2)을 이루는 금속코일(1)이 상기 금속스트립(2)에 슬릿트(11)가 만들어 지도록 천공되고 가공되어지기 쉽도록 하기 위하여 이 금속코일(1)이 놓여지는 테이블(15)을 갖춘 열전달핀 성형장치.32. The metal coil (1) according to claim 31, wherein the metal coil (1) constituting the metal strip (2) is made to be perforated and processed so that the slit (11) is made on the metal strip (2). Heat transfer pin forming apparatus having a table (15) to be placed. 제32항에 있어서, 중간 핀의 예비성형체(10)를 만들기 위해 금속스트립(2)에 슬릿트(11)을 성형시키기 위한 로울러(6,7)는 그 외주면에 각각부 및 凹부의 맞물림부를 갖춘것을 특징으로 하는 열전달핀의 성형장치.33. The rollers (6, 7) according to claim 32, wherein the rollers (6, 7) for forming the slit (11) on the metal strip (2) to make the preform (10) of the intermediate pins are each on its outer peripheral surface. Apparatus for forming a heat transfer fin, characterized in that it has an engaging portion of the upper and lower portions. 제33항에 있어서, 암나사 절단로울러(7)는 숫나사절단 로울러(6)와 맞물려 이 사이를 지나는 금속스트립(2)이 U자형 단면을 갖도록 하기위하여 로울러 외주면에 가공장치를 갖추도록 한 것을 특징으로 하는 열전달핀 성형장치.The female thread cutting roller (7) is provided with a processing device on the outer peripheral surface of the roller to engage the male cutting roller (6) so that the metal strip (2) passing therebetween has a U-shaped cross section. Heat transfer pin forming apparatus. 제33항에 있어서, 연속핀성형로울러(12,13)는 중간핀의 예비성형체(10)가 U자형 단면을 갖추는 루우프핀(3)으로 완성시킬 수 있도록 하기 위하여 절단로울러(6,7)의 중심선을 이은선과 서로 α각을 이루도록 중심선을 맞춘 상태로 배치되어진 것을 특징으로 하는 열전달핀 성형장치.34. The cutting roller (6, 7) of claim 33, wherein the continuous pin-forming roller (12, 13) is formed so that the preform (10) of the intermediate pin can be completed by the loop pin (3) having a U-shaped cross section. Heat transfer pin forming apparatus, characterized in that the center line and the center line to be aligned with each other to form an angle to each other. 제31항에 있어서, 루우프핀(3)은 플랜지(8,9)의 길이로 약 1∼1.5%의 신장을 보이도록 하기위해서 튜브에 감겨질때 텐션을 받고서 감겨지도록 한 것을 특징으로 하는 열전달핀 성형장치.32. The heat transfer fin molding according to claim 31, wherein the loop pins 3 are wound under tension when they are wound around the tube to show about 1 to 1.5% elongation in the length of the flanges 8 and 9. Device. 제31항에 있어서, 신장가공되는 핀은 플랜지의 길이로 약 1∼2.5% 늘어나기에 충분한 텐션을 받는 것을 특징으로 하는 열전달핀 성형장치.32. The apparatus of claim 31, wherein the fin to be stretched is subjected to tension sufficient to increase about 1 to 2.5% of the length of the flange. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019860006920A 1985-08-21 1986-08-21 Method and apparatus for making a looped fin heat exchanger KR940007196B1 (en)

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US767801 1985-08-21
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US2196186A (en) * 1936-02-14 1940-04-09 Alfred J Berg Heat exchange element and process of making same
GB800265A (en) * 1956-04-17 1958-08-20 Guy Davies Improvements in or relating to heat transfer element
US3005253A (en) * 1958-09-26 1961-10-24 Gen Electric Manufacture of heat exchange tubing
DE1402766A1 (en) * 1960-07-05 1969-01-30 Gustav Rasmussen Fa Device for helically upright winding a tape onto a rotating tube
US3134166A (en) * 1960-08-26 1964-05-26 Gen Electric Manufacture of heat exchange tubing
FR1288056A (en) * 1960-11-23 1962-03-24 Process for the manufacture of finned tubes and device for carrying out the process
US3288209A (en) * 1964-04-13 1966-11-29 Dewandre Co Ltd C Heat transmitting tubes having helical fin means
US3550235A (en) * 1968-05-15 1970-12-29 Escoa Corp Method of making a heat exchanger fin tubing
ES459078A1 (en) * 1976-05-25 1978-04-01 Carrier Corp Spine finned tube
US4184544A (en) * 1977-10-31 1980-01-22 Ullmer Harold J Apparatus and method for recovering waste heat from flue gases

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