KR20110128709A - Assembling method of tube and tube sheet of the heat exchanger - Google Patents

Assembling method of tube and tube sheet of the heat exchanger Download PDF

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Publication number
KR20110128709A
KR20110128709A KR1020100048684A KR20100048684A KR20110128709A KR 20110128709 A KR20110128709 A KR 20110128709A KR 1020100048684 A KR1020100048684 A KR 1020100048684A KR 20100048684 A KR20100048684 A KR 20100048684A KR 20110128709 A KR20110128709 A KR 20110128709A
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South Korea
Prior art keywords
tube
heat exchanger
tube sheet
sheet
shell
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KR1020100048684A
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Korean (ko)
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정대영
방광철
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주식회사 제이 티 씨
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Priority to KR1020100048684A priority Critical patent/KR20110128709A/en
Publication of KR20110128709A publication Critical patent/KR20110128709A/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F11/00—Arrangements for sealing leaky tubes and conduits
    • 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
    • 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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  • 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: An assembling method of a tube and a tube sheet of the heat exchanger is provided that the thermal stress created from tube is absorbed easily, the thermal efficiency is increased. CONSTITUTION: An assembling method of a tube and a tube sheet of the heat exchanger comprises the following steps. As to a heat exchanger(50) consisting of a shell(1) and caps(4,5), In the inside of the shell section, a tube(2) is inserted to the hole of the multiple formed in a one side of cylindrical tube sheet(3) inside. The packing is fitted in the outer circumference of the tube and it shuts tight. The fixing bolt is inserted into the female thread formed in the other side face of the tube sheet, and the tube is together put in the tube sheet by pressing the anchoring bolt in the tube sheet.

Description

열교환기의 튜브와 튜브 시트의 조립 방법{ Assembling Method of Tube and Tube Sheet of the Heat Exchanger}Assembling Method of Tube and Tube Sheet of the Heat Exchanger

본 발명은 열교환기에서 튜브와 튜브 시트를 조립시에 튜브를 튜브 시트에 끼워 밀폐시킨 후 패킹(O-ring) 및 고정 볼트로 상기 튜브를 튜브 시트에 조립하는 조립 방법에 관한 것이다.The present invention relates to an assembly method of assembling the tube to the tube sheet by packing (O-ring) and fixing bolt after sealing the tube to the tube sheet when assembling the tube and tube sheet in the heat exchanger.

본 발명은 열교환기의 튜브와 튜브 시트의 조립 방법에 관한 것으로, 보다 상세하게는 열교환기에서 튜브와 튜브 시트를 조립시에 튜브를 튜브 시트에 밀착 조립하는 조립 방법에 관한 것이다.The present invention relates to a method for assembling a tube and a tube sheet of a heat exchanger, and more particularly, to an assembly method for assembling a tube closely to a tube sheet when assembling a tube and a tube sheet in a heat exchanger.

일반적으로 냉동장치나 화학 플랜트에서 많이 사용하는 열교환기는 쉘부와 캡부(또는 "채널부"로도 호칭됨)가 결합되어 화공 유체 등의 용액의 열을 교환하는 구조로 주 구성되어 있다.In general, a heat exchanger commonly used in a refrigerating device or a chemical plant is mainly composed of a structure in which a shell part and a cap part (also called a "channel part") are combined to exchange heat of a solution such as a chemical fluid.

상기한 쉘(shell)부 내부구조는 다수의 튜브를 배열한 쉘 앤드 튜브(shell and Tube)형 열교환기가 많이 사용되며, 이 형식의 열교환기에서 열매체로 사용되는 유체는 대부분 냉각탑에서 대기와 열 교환하여 냉각되는 바, 상기 열교환기를 사용시에 대기의 미생물 및 먼지 등의 이물질이 유체내부로 유입된 후 이 이물질들 이 열교환기의 튜브 내벽에 스케일(scale)이나, 슬라임(slime) 등으로 부착함으로서 열교환기의 열 전달 성능이 저하하고 응축 압력이 상승하므로 소요 동력이 증가하게 될 뿐만 아니라 튜브가 튜브 시트에 밀착 고정된 상태에서 튜브에 열 응력이 발생하면 튜브가 열 응력을 흡수하지 못하고, 튜브가 길이 방향으로 반복적으로 팽창하여 클랙 발생을 유발하여 열 교환기의 효율을 저하시키고, 특히 튜브 외벽의 부식으로 구멍이 뚫리거나 관 내부가 막히는 등의 문제가 발생할 경우에 튜브가 튜브 시트에 용접 또는 확관 되어 있어 문제있는 일부의 튜브만을 교체하지 못하는 문제점이 있으며, 또한 튜브가 외통(Shell)과의 온도 차이에 의한 팽창계수가 달라 튜브의 팽창력으로 용접부 또는 확관부가 이탈될 수 있는 등의 문제점이 있었다.In the shell structure, a shell and tube type heat exchanger in which a plurality of tubes are arranged is frequently used. In this type of heat exchanger, most of the fluid used as a heat medium exchanges heat with the atmosphere in a cooling tower. When the heat exchanger is used, foreign matters such as microorganisms and dust in the air flow into the fluid, and then the foreign matters are attached to the inner wall of the heat exchanger by using scale or slime. As the heat transfer performance of the device decreases and the condensation pressure rises, not only does the power required increase, but when the thermal stress occurs in the tube while the tube is tightly fixed to the tube sheet, the tube cannot absorb the thermal stress and the tube length Direction, which induces cracking repeatedly, which decreases the efficiency of the heat exchanger. If a problem such as blockage occurs, the tube is welded or expanded on the tube sheet, so that only a part of the problem tube cannot be replaced. In addition, the tube has a different expansion coefficient due to a temperature difference from the shell. There was a problem such that the welded portion or expansion pipe may be separated by the expansion force of.

통상적으로 열교환기에서 튜브와 튜브 시트를 조립할 때에는 용접을 하거나 또는 확관용 공구를 사용하여 튜브를 확관하여 상기의 튜브(tube)와 튜브 시트(tube sheet)를 고정하는 방식이 많아 사용되고 있으나, 이 경우에는 튜브와 튜브 시트가 일체로 형성됨으로서, 상기 튜브가 부식되어 구멍이 나거나 또는 튜브의 내벽에 스케일(Scale)이나 슬라임(Slime)등이 부착되어 튜브가 막히는 등의 문제가 발생할 경우에 튜브를 교체하지 못하며, 또한 튜브가 외통(Shell)과의 온도 차이에 의한 팽창계수가 달라 튜브의 팽창력으로 용접부 또는 확관부가 이탈하는 등의 문제점이 있었다.In general, when assembling the tube and tube sheet in the heat exchanger, there are many methods of fixing the tube and the tube sheet by welding or expanding the tube by using an expansion tool. The tube and the tube sheet are integrally formed in the tube, and the tube is replaced when the tube is corroded and has a hole or a scale or slime is attached to the inner wall of the tube to cause the tube to be blocked. In addition, there is a problem that the tube is different from the expansion coefficient due to the temperature difference with the shell (Shell), such that the weld portion or expansion portion is separated by the expansion force of the tube.

본 발명은 상기의 문제점을 해결하고자 안출한 것으로서, 이의 발명요지는 쉘부(1)의 내부에서 대기 또는 이종(異種) 유체와 열 교환이 이루어 지도록 하는 다수의 튜브(2)를 튜브 시트(3)에 체결함에 있어서, 종래의 통상적인 방법과 달리, 본 발명은 원통형상으로 형성된 튜브 시트(3)의 일측(내측)에 형성한 다수의 구멍속으로 튜브(2)를 각각 삽입한 후 오-링 (O-ring) 형상으로 된 패킹(7)을 상기 튜브(2)의 외주면에 끼워 밀폐시킨 후, 상기한 튜브 시트(3)의 타측면(외주면)에 형성된 암 나사산으로 고정 볼트(6)를 삽입한 다음 육각 렌치(미도시)를 사용하여 고정 볼트(6)를 튜브(2)에 조여 상기 튜브(2)를 튜브 시트(3)에 밀착 조립하는 열교환기의 튜브와 튜브 시트의 조립 방법에 관한 것이다.The present invention has been made to solve the above problems, the present invention is a tube sheet (3) a plurality of tubes (2) to allow heat exchange with the atmosphere or heterogeneous fluid in the shell portion (1) In the fastening to, unlike the conventional conventional method, the present invention is to insert the tube 2 into each of the plurality of holes formed in one side (inner side) of the tube sheet 3 formed in a cylindrical shape and then the O-ring After sealing the packing 7 having an (O-ring) shape to the outer circumferential surface of the tube 2, the fixing bolt 6 is tightened with a female thread formed on the other side (outer circumferential surface) of the tube sheet 3. Inserting and then tightening the fixing bolt (6) to the tube (2) using a hexagon wrench (not shown) in the method of assembling the tube and tube sheet of the heat exchanger in close contact with the tube (2) to the tube sheet (3) It is about.

본 발명은 튜브시트에 튜브를 넣고 패킹(O-ring)을 튜브에 끼운 후 튜브와 튜브사이를 밀폐시키고 육각렌치로 고정볼트를 조여 상기 튜브가 튜브시트에 빠지지 않게 조립하는 열교환기의 튜브와 튜브 시트의 조립 방법에 관한 것인 바, 이는 구조가 간단하고 튜브로 부터 발생되는 열 응력을 용이하게 흡수하여 튜브와 튜브 시트 사이에 열 효율을 증대시키고 아울러 고장 발생시 수리가 간편할 뿐만 아니라 내구성이 양호함으로서 매우 실용적이고 경제적인 효과가 있는 것이다.The present invention is a tube and tube of the heat exchanger to put the tube in the tube sheet and the packing (O-ring) to the tube and then seal the tube and the tube and tighten the fixing bolt with a hexagon wrench so that the tube does not fall into the tube sheet. It relates to the assembly method of the sheet, which is simple in structure and easily absorbs the thermal stress generated from the tube, thereby increasing the thermal efficiency between the tube and the tube sheet, as well as easy repair and failure in case of failure By doing so, there is a very practical and economic effect.

통상적으로, 열교환기는 쉘부와 캡부(또는 "채널부"로도 호칭됨)가 결합되어 화공 유체 등의 용액의 열을 교환하는 구조로 구성되며 냉동장치나 화학플랜트 등에서 많이 사용하고 있다.In general, the heat exchanger is composed of a shell portion and a cap portion (also referred to as a "channel portion") to exchange heat of a solution such as a chemical fluid, and is widely used in a refrigerating device or a chemical plant.

본 발명은 종래의 튜브 조립 방식과 달리, 튜브 시트에 튜브를 넣고 패킹(O-ring)을 끼워 밀폐시킨 후 육각 렌치로 고정볼트를 튜브 시트에 조여 조립하는 열교환기의 튜브와 튜브 시트의 조립 방법에 관한 것이다.The present invention, unlike the conventional tube assembly method, the tube is inserted into the tube sheet and the packing (O-ring) to seal the tube and tube sheet of the heat exchanger assembly by tightening the fixing bolt to the tube sheet with a hexagon wrench. It is about.

도 1은 튜브가 내장된 쉘부와 캡부로 구성된 열교환기의 단면도이고,1 is a cross-sectional view of a heat exchanger composed of a shell part and a cap part in which a tube is embedded,

도 2는 도1의 "A"부분의 확대 단면도이며,FIG. 2 is an enlarged cross-sectional view of part “A” of FIG. 1;

도 3은 튜브가 튜브 시트에 조립된 도2의 "A"부분의 사시도이다.3 is a perspective view of portion “A” of FIG. 2 with the tube assembled into the tube sheet;

통상적으로 열교환기(50)는, 도 1에서와 같이, 쉘부(1)와 양측의 캡부(4,5)가 결합되어 화공유체 등의 용액의 열을 교환 하는 장치로서, 중앙부의 쉘부(1)와 상기 쉘부(1) 양측의 캡부(4,5)는 액체가 유동하는 통공 상태이며 이들을 플렌지(미도시)로 체결하여 원통형상으로 된 열교환기(50)를 구성하되, 상기 쉘부(1)의 양측단부에는 냉각수 주입구(10) 및 냉각수 배출구(11)가 각각 상하 방향으로 대칭되게 형성되고 , 상기 쉘부(1)의 양측 하부에는 지지대(12)가 부착되고 상기 쉘부(1)의 내부에는 공급되는 유체가 열교환기의 내부를 유동하면서 대기 또는 이종(異種) 유체와 열 교환이 이루어 지도록 하는 다수의 튜브(2)가 튜브 시트(3)에 체결되며, 아울러 상기한 쉘부(1) 양측의 캡부(4,5)에는 리키드(liquid) 또는 베이프(vapor)를 주입 및 배출하는 주입구(8)와 배출구(9)가 양측에 각각 하나씩 상하 방향으로 대칭되게 형성되어 열교환기(50)를 구성하고 있다.Typically, the heat exchanger 50, as shown in Figure 1, the shell portion 1 and the caps (4, 5) on both sides are coupled to exchange the heat of the solution, such as the chemical coagulant, the shell portion (1) And caps 4 and 5 on both sides of the shell part 1 are in a through-flow state in which liquid flows, and fasten them with a flange (not shown) to form a heat exchanger 50 having a cylindrical shape. Cooling water inlet 10 and the cooling water outlet 11 is formed in both sides end symmetrically in the vertical direction, the support 12 is attached to the lower side of the both sides of the shell portion 1 is supplied to the inside of the shell portion (1) A plurality of tubes 2 are fastened to the tube sheet 3 to allow the fluid to flow inside the heat exchanger and exchange heat with the atmosphere or heterogeneous fluid, and the caps on both sides of the shell part 1 4 and 5, the inlet 8 and the outlet 9 for injecting and discharging liquid or vapor (9) Is formed symmetrically in the vertical direction, one on each side to form a heat exchanger (50).

본 발명의 실시 방법을 상기 도면에 의거하여 상세히 설명하면 다음과 같다.Referring to the embodiment of the present invention in detail based on the drawings as follows.

상기 쉘부(1)의 내부에서 대기 또는 이종(異種) 유체와 열 교환이 이루어지도록 하는 다수의 튜브(2)를 튜브 시트(3)에 체결함에 있어서, 종래의 통상적인 방 법과 달리, 본 발명은 원통모양으로 형성된 튜브 시트(3)의 일측(내측)에 형성한 다수의 구멍속으로 먼저 원통형의 튜브(2)를 각각 삽입한 후 오-링 (O-ring)형상으로 된 패킹(7)을 상기 튜브(2)의 외주면에 긴밀하게 끼워 밀폐시킨 다음, 상기한 튜브 시트(3)의 타측면(외주면)에 형성된 암 나사산에 고정 볼트(6)를 삽입한 후 육각 렌치(미도시)로 된 공구를 사용하여 상기 고정 볼트(6)를 튜브(2)에 조임으로서, 상기 튜브(2)를 튜브 시트(3)에 긴밀하게 조립시키는 열교환기의 튜브와 튜브 시트의 조립 방법에 관한 것이다. (도2 및 도3 참조)In the fastening of a plurality of tubes (2) to the tube sheet (3) to the heat exchange with the atmosphere or heterogeneous fluid in the shell (1), unlike the conventional method, the present invention is First, the cylindrical tubes 2 are respectively inserted into a plurality of holes formed in one side (inner side) of the tube sheet 3 formed in a cylindrical shape, and then the packing 7 having an O-ring shape is opened. After tightly fitting and sealing the outer circumferential surface of the tube 2, the fixing bolt 6 is inserted into the female thread formed on the other side (outer circumferential surface) of the tube sheet 3, and then a hexagon wrench (not shown) A method of assembling a tube and tube sheet of a heat exchanger in which the fixing bolt (6) is tightened to a tube (2) using a tool to tightly assemble the tube (2) to a tube sheet (3). (See Figures 2 and 3)

본 발명은 열교환기에서 튜브를 튜브 시트에 밀폐시키는 조립 방법에 관한 것인 바, 이는 구조가 간단하고 열 효율을 증대시키며 고장 발생시 수리가 간편할 뿐만 아니라 내구성이 양호한 특징이 있는 것이다.The present invention relates to an assembly method for sealing a tube to a tube sheet in a heat exchanger, which is characterized by a simple structure, increased thermal efficiency, easy repair in the event of a failure, and good durability.

도 1은 튜브가 내장된 쉘부와 캡부로 구성된 열교환기의 단면도.1 is a cross-sectional view of a heat exchanger consisting of a shell portion and a cap portion in which a tube is embedded.

도 2는 도1의 "A"부분의 확대 단면도.FIG. 2 is an enlarged sectional view of portion “A” of FIG. 1;

도 3은 튜브가 튜브 시트에 조립된 도2의 "A"부분의 사시도.3 is a perspective view of the portion “A” of FIG. 2 with the tube assembled into the tube sheet;

※도면의 주요부분에 대한 부호의 설명※ Explanation of symbols for main parts of drawing

1 - 쉘부 2 - 튜브 3 -튜브 시트 4,5-캡부1-shell part 2-tube 3-tube sheet 4,5-cap

6-고정 볼트 7-패킹 8- 주입구 9-배출구6-screw bolt 7-packing 8- inlet 9- outlet

10-냉각수 주입구 11-냉각수 배출구 12-지지대(support)10-Coolant inlet 11-Coolant outlet 12-Support

50-열교환기50-heat exchanger

Claims (1)

쉘부(1)와 캡부(4,5)로 구성한 열교환기(50)에 있어서, 상기 쉘부(1)의 내부에서 원통형상으로 된 튜브 시트(3)의 일측에 형성된 다수의 구멍속으로 튜브(2)를 각각 삽입 후 패킹(7)을 상기 튜브(2)의 외주면에 끼워 밀폐시킨 다음, 상기한 튜브 시트(3)의 타측면에 형성된 암 나사산에 고정 볼트(6)를 삽입 후 상기 고정 볼트(6)를 튜브시트(3)에 조임으로서, 튜브(2)를 튜브 시트(3)에 조립함을 특징으로 하는 열교환기의 튜브와 튜브 시트의 조립 방법.In the heat exchanger 50 which consists of the shell part 1 and the cap parts 4 and 5, the tube 2 is carried in the inside of the said shell part 1 into the several hole formed in the one side of the tube sheet 3 made cylindrical. And insert the fixing bolt 6 into the female thread formed on the other side of the tube sheet 3 after sealing the packing 7 to the outer circumferential surface of the tube 2 after the insertion. 6) A method of assembling a tube and a tube sheet of a heat exchanger, characterized in that the tube (2) is assembled to the tube sheet (3) by tightening the tube sheet (3).
KR1020100048684A 2010-05-24 2010-05-24 Assembling method of tube and tube sheet of the heat exchanger KR20110128709A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102914181A (en) * 2012-10-30 2013-02-06 江苏科圣化工机械有限公司 Fixed tube-sheet tubular heat exchanger detached to wash
EP2685196A2 (en) 2012-07-11 2014-01-15 LG Electronics Inc. Heat exchanger
US9389026B2 (en) 2012-07-11 2016-07-12 Lg Electronics Inc. Heat exchanger
US9677819B2 (en) 2013-02-01 2017-06-13 Lg Electronics Inc. Air conditioner and heat exchanger therefor
KR20200069647A (en) * 2018-12-07 2020-06-17 최명헌 Finless type multi-tube double tube heat exchanger with tube (heat exchange tube) fitting
KR20210064970A (en) * 2019-11-26 2021-06-03 기노식 Heat exchanger of which maintenace is easy

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2685196A2 (en) 2012-07-11 2014-01-15 LG Electronics Inc. Heat exchanger
US9212852B2 (en) 2012-07-11 2015-12-15 Lg Electronics Inc. Support mechanism for a heat exchanger in an air-conditioning system
US9389026B2 (en) 2012-07-11 2016-07-12 Lg Electronics Inc. Heat exchanger
CN102914181A (en) * 2012-10-30 2013-02-06 江苏科圣化工机械有限公司 Fixed tube-sheet tubular heat exchanger detached to wash
US9677819B2 (en) 2013-02-01 2017-06-13 Lg Electronics Inc. Air conditioner and heat exchanger therefor
KR20200069647A (en) * 2018-12-07 2020-06-17 최명헌 Finless type multi-tube double tube heat exchanger with tube (heat exchange tube) fitting
KR20210064970A (en) * 2019-11-26 2021-06-03 기노식 Heat exchanger of which maintenace is easy

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