KR100435183B1 - Tube puller system - Google Patents

Tube puller system Download PDF

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Publication number
KR100435183B1
KR100435183B1 KR10-2001-0074052A KR20010074052A KR100435183B1 KR 100435183 B1 KR100435183 B1 KR 100435183B1 KR 20010074052 A KR20010074052 A KR 20010074052A KR 100435183 B1 KR100435183 B1 KR 100435183B1
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KR
South Korea
Prior art keywords
tube
hydraulic
ram
extraction
extraction tool
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KR10-2001-0074052A
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Korean (ko)
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KR20030043078A (en
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이회복
양희천
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이회복
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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
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
    • 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
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

본 발명은 셸-엔-튜브형 열교환기의 튜브 추출 시스템에 관한 것으로, 열전달 유체의 이송에 사용되는 튜브의 손상시나 성능실험을 위해 튜브를 추출하고자 할 때 용이하게 튜브를 추출할 수 있는 유압장치에 관한 것이다. 본 발명의 튜브 추출 시스템은 복동식 램형 유압실린더 어셈블리(1), 테이퍼형 추출 툴(2), 양방향 시스템 유압펌프(3)와 제어 스위치(4)로 구성된다. 유압실린더 어셈블리(1)는 2단 제어 스위치(4)의 조작에 의해 제어되는 양방향 시스템의 유압펌프(3)에 의해 작동된다. 튜브의 추출 과정은 외측램(5) 외부의 유압실에 유압유가 공급되어 외측램이 원상 복귀되면 추출 툴(2)이 추출하고자 하는 튜브에 장착할 수 있게 되고, 추출 툴이 장착되면 제어 스위치(4)의 조작으로 유압유를 내측램(6) 외부의 유압실에 공급하여 외측램이 튜브 시트쪽으로 전진하는 반작용으로 내측램의 중공에 고정되어 내측램과 일체로 움직이는 추출 툴이 후진하면서 튜브를 추출하는 것을 특징으로 한다. 본 발명의 튜브 추출 시스템은 산업 현장에서 간단하게 튜브를 제거할 수 있는 유압기기로 소수의 튜브 손상으로 열 교환기 전체를 새로 만들거나 교체할 필요가 없어서 생산 원가의 절감에 도움이 될 뿐만 아니라 단시간에 교체하여 관련 설비의 성능을 유지 할 수 있기 때문에 생산성 손실을 최대한 줄일 수 있는 효과가 있다.The present invention relates to a tube extraction system of a shell-and-tube type heat exchanger, and to a hydraulic apparatus that can easily extract a tube when the tube is used for the performance test or when the tube is used for the transfer of heat transfer fluid. It is about. The tube extraction system of the present invention consists of a double acting ram hydraulic cylinder assembly (1), a tapered extraction tool (2), a bidirectional system hydraulic pump (3) and a control switch (4). The hydraulic cylinder assembly 1 is operated by the hydraulic pump 3 of the bidirectional system controlled by the operation of the two stage control switch 4. The extraction process of the tube is supplied with hydraulic oil to the hydraulic chamber outside the outer ram 5 so that when the outer ram returns to its original position, the extraction tool 2 can be mounted on the tube to be extracted. 4) The hydraulic oil is supplied to the hydraulic chamber outside the inner ram 6 by the operation of the inner ram 6 so that the outer ram is fixed to the hollow of the inner ram in response to the tube seat. Characterized in that. The tube extraction system of the present invention is a hydraulic device that can easily remove the tube in the industrial field, so it is not only necessary to reduce the cost of production but also reduce the production cost by eliminating the need to rebuild or replace the entire heat exchanger with a few tube damages. By replacing and maintaining the performance of the relevant equipment, there is an effect that the loss of productivity can be minimized.

Description

튜브 추출 시스템{Tube puller system}Tube puller system

본 발명은 셀-엔-튜브형 열교환기의 튜브 추출 시스템에 관한 것으로, 열전달 유체의 이송에 사용되는 튜브의 손상시나 성능실험을 위해 튜브를 추출하고자 할 때 비 파괴적으로 튜브를 추출할 수 있는 유압장치에 관한 것이다. 셀-엔-튜브형 열교환기의 튜브는 제작과정에서 튜브시트와의 결합력 향상을 위하여 확관기를 이용해 확장시키기 때문에 튜브시트와 결합되는 부분은 원래의 직경보다 확관된 상태로 튜브홀 그루브에 결합되어 있다. 이와 같은 튜브를 추출하는 종래의 기술로는 공개특허공보 제 267호(1987, 7, 7)에 기술된 튜브 시트에서 튜브의 일부를 절단한 후 안내 슬리브내에 장착된 밀링 커터를 가압하여 제거하는 방법이나, 공개특허공보 제 271호(1987, 7, 11)에 기술된 추출해야할 튜브내에 슬리브를 삽입하고 튜브의 내부표면과 슬리브의 외부표면 사이에 분사장치로 결합제를 삽입하여 결합제가 응고한 후에 튜브를 견인하여 추출하는 방법이 있다. 본 발명의 튜브 추출 시스템은 유압펌프의 작동으로 유압실린더의 내측 램에 고정된 테이퍼형 추출 툴이 후진하면서 튜브를 추출하게 된다.The present invention relates to a tube extraction system of a cell-en-tube type heat exchanger, and a hydraulic apparatus capable of extracting a tube non-destructively when the tube is used for the performance test or when the tube is used for the transfer of a heat transfer fluid. It is about. Since the tube of the cell-en-tube type heat exchanger is expanded using a expander to improve the bonding force with the tube sheet in the manufacturing process, the part to be combined with the tube sheet is connected to the tube hole groove in a state where the tube sheet is expanded than the original diameter. . Conventional techniques for extracting such tubes include a method of pressing a milling cutter mounted in a guide sleeve after cutting a portion of the tube from the tube sheet described in Korean Patent Publication No. 267 (1987, 7, 7). However, after inserting the sleeve into the tube to be extracted described in Korean Patent Publication No. 271 (1987, 7, 11) and inserting the binder into the injection device between the inner surface of the tube and the outer surface of the sleeve, the binder is solidified. There is a way to extract the tow. The tube extraction system of the present invention extracts the tube while the tapered extraction tool fixed to the inner ram of the hydraulic cylinder is driven by the operation of the hydraulic pump.

본 발명은 상기와 같이 밀링 커터를 이용하거나 결합제로 결합시켜 추출하는 방법과는 달리 원격 제어할 수 있는 제어 스위치와 양방향 시스템 유압펌프의 작동에 의해서 구동되는 유압실린더 어셈블리의 내측 램에 고정된 테이퍼형 추출 툴의 전·후진에 의해 튜브를 장착하고 추출하는 특징을 갖는다. 추출 툴을 내측램과 일체로 고정시키기 위해 추출 툴 고정자를 이용하며, 테이퍼형 추출 툴은 후진시에 미끄러짐 없이 튜브를 견인 할 수 있도록 하기 위해 테이퍼의 직경이 큰 쪽으로 나사산을 경사지게 제작하여야 하며, 튜브의 직경 및 두께에 따라 추출 툴을 선택적으로 사용할 수 있도록 구비하여야 한다. 또한 추출 툴의 재질에 따라 추출과정에 크게 영향을 미치므로 추출 툴의 모양과 열처리에 주의하여야 한다.The present invention is different from the method of extracting by using a milling cutter or a binder as described above, the tapered type fixed to the inner ram of the hydraulic cylinder assembly driven by the operation of the control switch and the bidirectional system hydraulic pump that can be remotely controlled It has the characteristic of mounting and extracting a tube by forward and backward of an extraction tool. The extraction tool stator is used to fix the extraction tool integrally with the inner ram, and the tapered extraction tool should be made with the taper inclined toward the larger diameter of the taper so that the tube can be pulled without slipping when reversing. Extraction tools shall be provided for selective use in accordance with their diameter and thickness. In addition, the extraction process is greatly influenced by the material of the extraction tool, so care must be taken in the shape and heat treatment of the extraction tool.

도1은 본 발명에 의한 튜브 추출 시스템의 전체를 조립한 사시도이다.1 is a perspective view of the entire tube extraction system of the present invention assembled.

도2는 본 발명에 의한 복동식 램형 유압실린더 어셈블리의 분해 사시도이다.Figure 2 is an exploded perspective view of a double-acting ram-type hydraulic cylinder assembly according to the present invention.

도3A, B는 복동식 램형 유압실린더의 작동과정을 나타내는 확대 단면도이다.3A and B are enlarged cross-sectional views showing the operation of the double acting ram-type hydraulic cylinder.

도4는 테이퍼형 추출 툴의 확대 단면도이다.4 is an enlarged cross-sectional view of the tapered extraction tool.

〈도면의 주요부분에 대한 부호의 설명><Explanation of symbols for main parts of the drawings>

(1) 복동식 램형 유압실린더 어셈블리 (2) 추출 툴(1) Double acting ram hydraulic cylinder assembly (2) Extraction tool

(3) 양방향 시스템 유압펌프 (4) 제어 스위치(3) Bidirectional system hydraulic pump (4) Control switch

(5) 외측 램 (6) 내측 램(5) outer ram (6) inner ram

(7) 추출 툴 고정자 (8) 엔드 캡(7) extraction tool stator (8) end cap

(9) 패킹 (10) 추출 툴의 나사산(9) Packing (10) Thread of Extraction Tool

본 발명의 튜브 추출 시스템은 도1에 도시된 바와같이 복동식 램형 유압실린더 에셈블리(1), 테이퍼형 추출 툴(2), 양방향 시스템 유압펌프(3)와 제어 스위치(4)로 구성되며, 유압실린더 어셈블리는 도2에서와 같이 내·외측 램(5,6), 추출 툴 고정자(7), 상하단의 엔드 캡(8) 그리고 유압유의 누설을 방지할 수 있는 패킹(9)으로 구성된다. 유압실린더 어셈블리(1)는 2단 제어스위치(4)의 조작에 의해 제어되는 양방향 시스템의 유압펌프(3)에 의해 작동된다. 튜브의 추출 과정은 도3A에서와 같이 외측램(5) 외부의 유압실에 유압유가 공급되어 외측램이 원상 복귀되면 추출 툴(2)이 추출하고자 하는 튜브에 장착할 수 있게 되고, 추출 툴이 장착되면 제어 스위치(4)의 조작으로 도3B에서와 같이 유압유를 내측램(6) 외부의 유압실에 공급하여 외측램이 튜브 시트쪽으로 전진하는 반작용으로 내측램의 중공에 고정되어 내측램과 일체로 움직이는 추출 툴이 후진하면서 튜브를 추출하게 된다. 추출 툴이 후진하면서 튜브와 미끄러짐 없이 견인 할 수 있도록 하기 위해 추출 툴의 나사산은 도4와 같이 테이퍼의 직경이 큰 쪽으로 나사산이 경사지게 제작되어야 한다.The tube extraction system of the present invention is composed of a double acting ram hydraulic cylinder assembly 1, a tapered extraction tool 2, a bidirectional system hydraulic pump 3 and a control switch 4, as shown in FIG. The hydraulic cylinder assembly is composed of the inner and outer rams 5 and 6, the extraction tool stator 7, the upper and lower end caps 8 and the packing 9 which can prevent the leakage of hydraulic oil as shown in FIG. The hydraulic cylinder assembly 1 is operated by the hydraulic pump 3 of the bidirectional system controlled by the operation of the two-stage control switch 4. In the extraction process of the tube, as shown in FIG. 3A, when the hydraulic oil is supplied to the hydraulic chamber outside the outer ram 5 and the outer ram returns to its original position, the extraction tool 2 can be mounted on the tube to be extracted. When mounted, the hydraulic switch is supplied to the hydraulic chamber outside the inner ram 6 by the operation of the control switch 4, and the outer ram is fixed to the hollow of the inner ram in a reaction to move forward toward the tube seat. The extraction tool, which moves to the back, extracts the tube as it reverses. The thread of the extraction tool should be inclined with a larger taper diameter as shown in FIG. 4 so that the extraction tool can be pulled back with the tube while reversing.

본 발명의 튜브 추출 시스템은 산업 현장에서 간단하게 튜브를 제거 할 수 있는 유압기기로 소수의 튜브 손상으로 열 교환기 전체를 새로 만들거나 교체할 필요가 없어서 생산 원가의 절감에 도움이 될 뿐만 아니라 단 시간에 교체하여 관련 설비의 성능을 유지 할 수 있기 때문에 생산성 손실을 최대한 줄일 수 있을 것이다. 또한 본 발명의 튜브 추출 시스템은 구조가 간단하고 작동원리가 단순하기 때문에 기기의 작동 원리를 쉽게 숙지하여 현장에 적용할 수 있으며, 고장시에도 수리가 용이하고 전문적인 숙련공이 요구되지 않는다.The tube extraction system of the present invention is a hydraulic device that can easily remove the tube in the industrial field, so it is not only necessary to reduce the cost of production but also reduce the production cost because there is no need to make or replace the entire heat exchanger with a few tube damages. The loss of productivity will be reduced as much as possible by maintaining the performance of the relevant equipment by replacing it. In addition, the tube extraction system of the present invention is simple in structure and simple in operation, so that the principle of operation of the device can be easily understood and applied to the field, and in the event of a breakdown, it is easy to repair and does not require a professional skilled worker.

Claims (3)

원격 제어할 수 있는 제어 스위치(4)와 양방향 시스템 유압펌프(3)의 작동에 의해서 구동되는 유압실린더 어셈블리(1)의 내측 램(6)에 고정된 테이퍼형 추출 툴(2)의 전·후진에 의해 튜브를 장착하고 추출하는 튜브 추출 시스템Forward and backward of the tapered extraction tool 2 fixed to the inner ram 6 of the hydraulic cylinder assembly 1 driven by the operation of the control switch 4 and the bidirectional system hydraulic pump 3 which can be controlled remotely. Tube extraction system to mount and extract tubes by 1항에 있어서, 추출 툴이 내측램과 일체로 고정되도록 하기 위해 추출 툴 고정자를 사용하는 튜브 추출 시스템The tube extraction system of claim 1, wherein the extraction tool stator is used to secure the extraction tool integrally with the inner ram. 1항에 있어서, 튜브를 장착하고 후진시에 미끄러짐 없이 튜브를 견인 할 수 있도록 하기 위해 테이퍼의 직경이 큰 쪽으로 나사산을 경사지게 제작한 추출 툴을 갖는 튜브 추출 시스템The tube extraction system according to claim 1, wherein the tube extraction system has an extraction tool that mounts the tube and inclines the thread toward the larger diameter of the taper to allow the tube to be pulled without slipping on retraction.
KR10-2001-0074052A 2001-11-23 2001-11-23 Tube puller system KR100435183B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000556A (en) * 1975-11-17 1977-01-04 Ciminero Anthony S Method and apparatus for pulling tubes
US4095335A (en) * 1977-01-12 1978-06-20 Trouvay & Cauvin Automatic tube puller
US5168623A (en) * 1991-08-16 1992-12-08 Foster Wheeler Energy Corporation Tube puller tool assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000556A (en) * 1975-11-17 1977-01-04 Ciminero Anthony S Method and apparatus for pulling tubes
US4095335A (en) * 1977-01-12 1978-06-20 Trouvay & Cauvin Automatic tube puller
US5168623A (en) * 1991-08-16 1992-12-08 Foster Wheeler Energy Corporation Tube puller tool assembly

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