KR20110080236A - Hydraulic type insert and removal device for heat exchanger tube plug - Google Patents

Hydraulic type insert and removal device for heat exchanger tube plug Download PDF

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KR20110080236A
KR20110080236A KR1020100000371A KR20100000371A KR20110080236A KR 20110080236 A KR20110080236 A KR 20110080236A KR 1020100000371 A KR1020100000371 A KR 1020100000371A KR 20100000371 A KR20100000371 A KR 20100000371A KR 20110080236 A KR20110080236 A KR 20110080236A
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South Korea
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plug
heat exchanger
bar
vertical
pressure bar
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KR1020100000371A
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Korean (ko)
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KR101173819B1 (en
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김정실
박정민
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한전케이피에스 주식회사
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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
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/11—Plugs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Automatic Assembly (AREA)

Abstract

PURPOSE: A hydraulic apparatus for insertion and removal of a tube plug of a heat exchanger is provided to prevent damage to a seal portion between an expanded tube and a shell by inserting a tube plug with controlled force and speed. CONSTITUTION: A hydraulic apparatus for insertion and removal of a tube plug of a heat exchanger comprises a pressing bar(2), lock nuts(3,6), a washer(4), a supporting mechanism(5), and a plurality of vertical fixing units(7). The pressing bar is connected to the inner side of a hydraulic ram(1). The lock nuts are coupled to the front and rear positions of the pressing bar, respectively. The washer and the supporting mechanism are installed in the pressing bar behind the hydraulic ram. The vertical fixing units, which are made by fastening a vertical bar(72) and a foot(74), are radially installed on the outside of the main body(50) of the supporting mechanism.

Description

열교환기 튜브플러그의 유압 삽입 인출장치{Hydraulic Type Insert and Removal Device for Heat Exchanger Tube Plug}Hydraulic Type Insert and Removal Device for Heat Exchanger Tube Plug}

본 발명은 열교환기를 구성하는 튜브에 문제가 발생하여 해당 튜브를 폐쇄하고자 삽입하는 플러그를 삽입하거나 인출하기 위한 열교환기 튜브플러그의 유압 삽입 인출장치에 관한 것이다.The present invention relates to a hydraulic insertion take-out device of the heat exchanger tube plug for inserting or withdrawing a plug for inserting the plug to close the tube due to a problem in the tube constituting the heat exchanger.

일반적으로 유체를 냉각시키거나 가열하기 위하여 사용되는 열교환기는 쉘(Shell)과 튜브로 구성되며, 열교환의 효율을 극대화하기 위하여 튜브의 두께를 얇게 유지하도록 생산되므로, 운전 중에 마모, 부식 등의 원인에 의하여 튜브가 누설되는 경우 또는 튜브 확관부와 쉘과의 시일부에서 누설되는 경우가 있는데, 이러한 경우 계통에 사용되는 유체와 열교환용 유체가 서로 섞이게 되며 결국 열교환효율이 감소하기도 하고 오염의 문제가 발생하기도 하므로, 이를 방지하기 위한 차원에서 통상 튜브 누설현상이 발생하게 되는 경우 누설튜브의 입구와 출구를 플러그로 폐쇄하는 작업을 시행하고 있다.In general, the heat exchanger used to cool or heat the fluid consists of a shell and a tube, and is produced to keep the thickness of the tube thin to maximize the efficiency of the heat exchange. If the tube leaks or leaks from the sealing part between the tube expansion part and the shell, in this case, the fluid used in the system and the fluid for heat exchange are mixed with each other, resulting in a decrease in heat exchange efficiency and a problem of contamination. In order to prevent this, in order to prevent this, when a tube leakage phenomenon occurs, a work of closing the inlet and the outlet of the leaking tube with a plug is performed.

이러한 폐쇄작업의 기존 방식은 누설부위의 기밀정도에 따라 청동이나 튜브와 유사한 재질 등을 소재로 하여 절두원추형(切頭圓推型)의 테이퍼진 구조로 가공하여 플러그를 제작하고 이러한 플러그를 사용하여 튜브에 삽입한 다음 해머로 타격하여 강제로 압입한 다음에 튜브와 쉘, 그리고 플러그를 서로 용접하여 폐쇄하는 작업을 시행하고 있다.The existing method of closing works is to make the plug by processing the tapered structure of truncated cone shape using material similar to bronze or tube according to the airtightness of the leaked part. It is inserted into the tube, hit with a hammer to force the press, and the tube, shell and plug are welded to each other and closed.

그러나 이와 같은 종래의 폐쇄작업방식은 해머에 의한 플러그의 타격으로 충격이 발생하고 이러한 충격에 의하여 주변의 확관된 튜브와 쉘과의 시일부에 손상을 주게 되어 또 다른 누출문제를 발생시켜 큰 사고의 원인이 되기도 한다.However, such a conventional closing operation method causes an impact due to the impact of the plug by the hammer and damages the seal portion between the tube and the shell which is surrounded by the impact, which causes another leakage problem. It can also be a cause.

또한 강제로 삽입된 플러그가 폐쇄작업 중 제대로 잘 삽입되지 않아 잘못 삽입되거나 아니면 다른 필요에 의하여 이미 삽입 폐쇄된 플러그를 다시 교체하여야 하는 경우 기존 방식으로 강제 삽입된 플러그는 다시 인출할 수 있는 방법이 없는 실정이다.In addition, if a plug that is forcibly inserted is not inserted properly during the closing operation and is inserted incorrectly or if a plug that has already been inserted by another need to be replaced, there is no way to retract the plug that has been inserted in the conventional manner. It is true.

본 발명은 이와 같은 종래의 문제점을 해소하기 위하여 연구 개발이 이루어진 것으로 다음과 같은 목적을 갖는다.The present invention has been made in order to solve such a conventional problem has the following object.

본 발명의 목적은 열교환기 튜브에 플러그를 삽입하는 경우 타격방식이 아닌 유압에 의한 압입방식을 채택하여 가압력이나 압입속도를 조정하면서 삽입작업이 가능하도록 하여 확관된 튜브와 쉘과의 시일부에 손상이 끼치지 않아 누출의 염려가 없으며, 안전하게 플러그 삽입작업이 가능하도록 하고자 함에 있다.It is an object of the present invention to adopt a hydraulic press-fit method instead of a blow method when inserting a plug into a heat exchanger tube to allow insertion work while adjusting the pressing force or the press-in speed, thereby damaging the seal portion of the tube and the shell being expanded. There is no fear of leakage because of this, and it is intended to enable safe plug insertion.

본 발명의 다른 목적은 플러그의 가압이 이루어지는 가압바의 구조를 개선하여 튜브에 플러그의 삽입작업이 일단 완료되었더라도 플러그를 상기 가압바로 서로 고정한 상태에서 강제 인출이 가능하도록 하여 플러그의 교체가 용이하도록 하고자 함에 있다.Another object of the present invention is to improve the structure of the pressure bar in which the pressure is applied to the plug, so that even when the plug is inserted into the tube, the plug can be easily pulled out while the plugs are fixed to each other by the pressure bar to facilitate replacement of the plug. It is in a ship.

본 발명은 이와 같은 목적들을 달성하기 위하여 유압램의 내측에 가압바를 길게 결합 설치하고, 상기 가압바의 전방 소정위치엔 로크너트를 체결 설치하고, 상기 유압램의 후방으로서 가압바엔 와셔와 지지기구를 설치하고, 상기 가압바의 후방 위치엔 별도의 로크너트를 체결 설치하고, 상기 지지기구는 본체의 외측에 방사상으로 다수의 수직고정구를 설치하되, 상기 수직고정구는 수직바지지구, 수직바 및 후트(Foot)의 결합구성으로 이루어지는 열교환기 튜브플러그의 유압 삽입 인출장치를 제공한다.In order to achieve the above objects, the present invention provides a pressure bar coupled to the inside of the hydraulic ram for a long time, and a lock nut is installed at a predetermined position in front of the pressure bar. In the rear position of the pressing bar, the lock nut is installed and fastened, and the support mechanism is provided with a plurality of vertical fasteners radially on the outside of the main body, wherein the vertical fasteners are vertical bar supports, vertical bars and hooks ( Provided is a hydraulic insertion take-out device of the heat exchanger tube plug consisting of a coupling structure of the foot).

또한, 상기 가압바가 플러그를 가압하거나 인출하기에 적합하게 선단에 체결부를 형성하여 이루어지는 열교환기 튜브플러그의 유압 삽입 인출장치를 제공한다.In addition, the pressure bar provides a hydraulic insertion take-out apparatus of the heat exchanger tube plug formed by forming a fastening portion at the tip to be suitable for pressing or withdrawing the plug.

그리하여 본 발명에 의하면, 열교환기 튜브에 플러그를 삽입하는 경우 타격방식이 아니라 유압에 의한 압입방식으로 가압바에 의한 가압력이나 압입속도를 조정하면서 삽입작업이 가능하여 열교환기에 있어서 확관된 튜브와 쉘과의 시일부에 손상이 발생하지 않고 누출의 염려가 없으며, 안전하게 플러그 삽입작업이 가능하다.Therefore, according to the present invention, when the plug is inserted into the heat exchanger tube, the inserting operation is possible by adjusting the pressing force or the pressing speed by the pressure bar, not by the hitting method but by the hydraulic pressing method. There is no damage to the seal, there is no fear of leakage, and the plug can be inserted safely.

또한 플러그의 가압 또는 인출이 이루어지는 가압바의 선단에 체결부를 형성하여 튜브에 플러그를 삽입하는 작업은 물론, 삽입작업이 완료된 이후에라도 필요에 따라 플러그의 강제 인출이 가능하여 플러그의 교체가 용이하게 된다.In addition, by inserting the plug into the tube by forming a fastening portion at the tip of the pressure bar in which the plug is pressed or drawn out, as well as forcibly pulling out the plug as needed even after the insertion is completed, the plug can be easily replaced. .

도 1은 본 발명의 바람직한 일례로서 본 발명을 나타내는 일부 절결 측면도,
도 2는 도 1의 일부 생략 우측면도.1 is a partially cutaway side view showing the present invention as a preferred example of the present invention;
2 is a partially omitted right side view of FIG. 1;

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 예를 중심으로 상세하게 살펴보기로 한다.Hereinafter, with reference to the accompanying drawings will be described in detail centering on a preferred example of the present invention.

본 발명의 바람직한 예에 의하면, 유압램(1)의 내측에 가압바(2)를 길게 결합 설치하고, 상기 가압바(2)의 전방 소정위치엔 로크너트(3)를 체결 설치하고, 상기 유압램(1)의 후방으로서 가압바(2)엔 와셔(4)와 지지기구(5)를 설치하고, 상기 가압바(2)의 후방 위치엔 별도의 로크너트(6)를 체결 설치하고, 상기 지지기구(5)는 본체(50)의 외측에 방사상으로 다수의 수직고정구(7)를 설치하되, 상기 수직고정구(7)는 수직바지지구(70), 수직바(72) 및 후트(74)의 결합구성으로 이루어지게 된다.According to a preferred embodiment of the present invention, the pressure bar (2) is installed to the inside of the hydraulic ram 1 for a long time, the lock nut (3) is fastened to the predetermined position in front of the pressure bar (2), the hydraulic pressure The washer 4 and the support mechanism 5 are installed in the pressure bar 2 as the rear of the ram 1, and the lock nut 6 is fastened and installed at the rear position of the pressure bar 2, The support mechanism 5 is provided with a plurality of vertical fixtures 7 radially on the outside of the main body 50, the vertical fixture 7 is a vertical bar support 70, vertical bar 72 and the hook 74 Combination of the configuration will be made.

또한, 상기 가압바(2)가 플러그(8)를 가압하거나 인출하기에 적합하게 선단에 체결부(20)를 형성하여 이루어진다.In addition, the pressing bar 2 is formed by forming a fastening portion 20 at the tip suitable for pressing or withdrawing the plug (8).

또한, 상기 가압바(2)의 체결부(20)는 플러그(8)에 형성한 체결부(80)와 서로 체결이 가능하게 구성하되, 예를 들면 상기 가압바(2)의 체결부(20)는 수나사부 형태로 구성하고 상기 플러그(8)의 체결부(80)는 암나사부 형태로 구성하여 서로 나사결합에 의한 체결이 가능하게 구성할 수 있다.In addition, the fastening part 20 of the pressure bar 2 is configured to be fastened to each other and the fastening part 80 formed on the plug 8, for example, the fastening part 20 of the pressure bar (2). ) May be configured in the form of a male screw and the fastening portion 80 of the plug 8 may be configured in the form of a female screw to enable fastening by screwing together.

다음은 본 발명의 작동이 이루어지는 과정을 살펴보기로 한다.Next, the process of the operation of the present invention will be described.

우선, 열교환기의 파이프에 플러그(8)를 삽입하고자 하는 경우부터 살펴보기로 한다.First, a case in which the plug 8 is to be inserted into the pipe of the heat exchanger will be described.

가압바(2)의 선단부에 로크너트(3)를 나사결합한 상태에서 플러그(8)의 체결부(20)와 가압바(2)의 체결부(20)를 서로 체결하고 유압램(1)의 후부에 위치한 가압바(2)에 와셔(4)를 삽입하여 결합한 다음, 지지기구(5)를 결합한다.In the state where the lock nut 3 is screwed to the distal end of the pressure bar 2, the fastening part 20 of the plug 8 and the fastening part 20 of the pressure bar 2 are fastened to each other and the hydraulic ram 1 After inserting the washer (4) to the pressure bar (2) located in the rear, and then combine the support mechanism (5).

다음, 지지기구(5)의 본체(50) 외주연에 수직고정구(7)를 방사상으로 다수를 결합하되, 수직바지지구(70)를 본체(50)에 나사 결합하여 고정한 상태에서 후트(74)가 결합된 수직바(72)를 수직바지지구(70)와 나사결합한다.Next, a plurality of vertical fasteners 7 are radially coupled to the outer circumference of the main body 50 of the support mechanism 5, but the hook 74 is fixed in a state in which the vertical bar support 70 is screwed and fixed to the main body 50. The coupled vertical bar 72 is screwed with the vertical bar support (70).

이때, 수직바(72)와 수직바지지기구(70) 상호간 나사 결합되는 상호간 길이를 조절하여 방사상으로 설치되는 다수의 수직고정구(7)에 의하여 삽입하고자 하는 열교환기의 파이프의 위치와 플러그(8)의 위치를 서로 일치하도록 하면서 열교환기의 내벽과의 사이 적정위치에 플러그(8)를 포함한 유압램(1)의 위치를 고정시키게 된다.At this time, the position and the plug of the pipe of the heat exchanger to be inserted by a plurality of vertical fixtures 7 which are radially installed by adjusting the mutual length of the vertical bar 72 and the vertical bar support mechanism 70 are mutually screwed together The position of the hydraulic ram 1 including the plug 8 is fixed at an appropriate position between the inner wall of the heat exchanger while making the positions of) coincide with each other.

다음, 유압램(1)을 작동시켜 가압바(2)가 전진하면서 플러그(8)가 열교환기의파이프 내측으로 강제로 삽입시키는 작업을 수행하고 이와 같은 강제 삽입작업이 완료되면 유압램의 작동을 중단시키고 전술한 작동순서와는 반대로 작업을 행하여 결국 강제 삽입된 플러그(8)로부터 가압바(2)를 분리하여 삽입작업을 완료하게 된다.Next, the hydraulic ram 1 is operated so that the pressure bar 2 moves forward and the plug 8 forcibly inserts into the pipe of the heat exchanger. When the forced insertion is completed, the operation of the hydraulic ram is completed. Interruption is performed and the operation is performed in the reverse order to the above-described operation sequence, thereby finally removing the pressure bar 2 from the forcefully inserted plug 8 to complete the insertion operation.

그리고 열교환기의 파이프에 삽입된 플러그(8)를 인출하고자 하는 경우에는 다음과 같이 작업이 이루어지도록 한다.And if you want to take out the plug (8) inserted into the pipe of the heat exchanger to work as follows.

플러그(8)의 체결부(20)와 가압바(2)의 체결부(20)를 서로 체결하고 유압램(1)의 후부에 위치한 가압바(2)에 와셔(4)를 삽입하여 결합한 다음 지지기구(5)를 결합하고 가압바(2)의 후부엔 별도의 로크너트(6)를 체결하고, 지지기구(5)의 본체(50) 외주연에 수직고정구(7)를 방사상으로 다수를 결합하고, 수직바지지구(70)를 본체(50)에 나사 결합하여 고정한 상태에서 후트(74)가 결합된 수직바(72)를 수직바지지구(70)와 나사결합한다.The fastening part 20 of the plug 8 and the fastening part 20 of the pressure bar 2 are fastened to each other, and the washer 4 is inserted into the pressure bar 2 located at the rear of the hydraulic ram 1, and then coupled. The support mechanism 5 is coupled, and a separate lock nut 6 is fastened to the rear of the pressure bar 2, and a plurality of vertical fasteners 7 are radially attached to the outer circumference of the main body 50 of the support mechanism 5. The vertical bar 72 is coupled to the vertical bar support 70 in the state in which the hook 74 is coupled in a fixed state by screwing the vertical bar support 70 to the main body 50.

이때, 수직바(72)와 수직바지지기구(70) 상호간 나사 결합되는 상호간 길이를 조절하여 방사상으로 설치되는 다수의 수직고정구(7)에 의하여 열교환기의 내벽과의 사이 적정위치에 플러그(8)를 포함한 유압램(1)의 위치를 고정시킨 다음, 유압램(1)을 작동시켜 가압바(2)가 후진하면서 열교환기 파이프에 이미 삽입되어 있던 플러그(8)를 열교환기 파이프로부터 강제로 인출시키는 작업을 수행하고 이와 같은 강제 인출작업이 완료되면 유압램의 작동을 중단시키고 전술한 작동순서와는 반대로 작업을 행하여 결국 플러그(8)의 분리 인출작업을 완료하게 된다.At this time, the vertical bar 72 and the vertical bar support mechanism 70 by adjusting the mutual length of the screw coupling between each other by a plurality of vertical fixtures 7 which are radially installed in the appropriate position between the inner wall and the heat exchanger plug (8) After fixing the position of the hydraulic ram 1 including), the hydraulic ram 1 is operated to force the plug 8, which has already been inserted into the heat exchanger pipe, from the heat exchanger pipe while the pressure bar 2 reverses. When the drawing operation is performed and the forced drawing operation is completed, the operation of the hydraulic ram is stopped and the operation is performed in the reverse of the above-described operation sequence, thereby completing the separate drawing operation of the plug 8.

그리하여 본 발명에 의하면, 열교환기 튜브에 플러그(8)를 삽입하는 경우 타격방식이 아니라 유압램(1)에 의한 압입방식으로 가압바(2)에 의한 가압력이나 압입속도를 조정하면서 삽입작업이 가능하여 열교환기에 있어서 확관된 튜브와 쉘과의 시일부에 손상이 발생하지 않고 누출의 염려가 없게 되며, 안전하게 플러그의 삽입작업이 가능하게 된다.Therefore, according to the present invention, when the plug 8 is inserted into the heat exchanger tube, the inserting operation is possible while adjusting the pressing force or the press-in speed by the pressure bar 2 by the press-in method by the hydraulic ram 1, not the hitting method. Therefore, the seal portion between the tube and the shell expanded in the heat exchanger is not damaged and there is no fear of leakage, and the plug can be safely inserted.

또한 플러그(8)의 가압 또는 인출이 이루어지는 가압바(2)의 선단에 체결부(20)를 형성하여 튜브에 플러그(8)를 삽입하는 작업은 물론, 삽입작업이 완료된 이후에라도 필요에 따라 플러그(8)의 강제 인출이 가능하여 플러그(8)의 교체가 용이하게 된다.In addition, the fastening part 20 is formed at the tip of the pressure bar 2 in which the plug 8 is pressurized or drawn out to insert the plug 8 into the tube. Forced withdrawal of 8 can be made and replacement of the plug 8 becomes easy.

1: 유압램, 2: 가압바,
3, 6: 로크너트, 4: 와셔,
5: 지지기구, 7: 수직고정구,
8: 플러그, 50: 본체,
70: 수직바지지구, 72: 수직바,
74: 후트1: hydraulic ram, 2: pressurizing bar,
3, 6: locknut, 4: washer,
5: support mechanism, 7: vertical fixture,
8: plug, 50: main body,
70: vertical bar support, 72: vertical bar,
74: Hoot

Claims (2)

유압램(1)의 내측에 가압바(2)를 길게 결합 설치하고,
상기 가압바(2)의 전방 소정위치엔 로크너트(3)를 체결 설치하고,
상기 유압램(1)의 후방으로서 가압바(2)엔 와셔(4)와 지지기구(5)를 설치하고,
상기 가압바(2)의 후방 위치엔 별도의 로크너트(6)를 체결 설치하고,
상기 지지기구(5)는 본체(50)의 외측에 방사상으로 다수의 수직고정구(7)를 설치하되, 상기 수직고정구(7)는 수직바지지구(70), 수직바(72) 및 후트(74)의 결합구성으로 이루어지는 것을 특징으로 하는 열교환기 튜브플러그의 유압 삽입 인출장치.The pressure bar (2) is installed in the hydraulic ram (1) for a long time,
The lock nut 3 is fastened and installed at a predetermined position in front of the pressure bar 2,
A washer 4 and a support mechanism 5 are installed on the pressure bar 2 as the rear of the hydraulic ram 1,
In the rear position of the pressure bar (2) by fastening and installing a separate lock nut (6),
The support mechanism 5 is provided with a plurality of vertical fixtures 7 radially on the outside of the main body 50, the vertical fixture 7 is a vertical bar support 70, vertical bar 72 and the hook 74 Hydraulic insertion drawing device of the heat exchanger tube plug, characterized in that consisting of a). 제1항에 있어서,
상기 가압바(2)가 플러그(8)를 가압하거나 인출하기에 적합하게 선단에 체결부(20)를 형성하여 이루어지는 것을 특징으로 하는 열교환기 튜브플러그의 유압 삽입 인출장치.The method of claim 1,
The pressurizing bar (2) is a hydraulic insertion pull-out device of the heat exchanger tube plug, characterized in that formed by the fastening portion 20 to the front end suitable for pressing or withdrawing the plug (8).
KR1020100000371A 2010-01-05 2010-01-05 Hydraulic Type Insert and Removal Device for Heat Exchanger Tube Plug KR101173819B1 (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109352315A (en) * 2018-11-23 2019-02-19 伟本智能机电（上海）股份有限公司 A kind of Bowl Plug feeding press-loading apparatus
CN109396851A (en) * 2018-12-21 2019-03-01 核动力运行研究所 A kind of micro- damage of shell-and-tube heat exchanger heat-transfer pipe takes pipe device and technique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109352315A (en) * 2018-11-23 2019-02-19 伟本智能机电（上海）股份有限公司 A kind of Bowl Plug feeding press-loading apparatus
CN109352315B (en) * 2018-11-23 2022-02-18 伟本智能机电（上海）股份有限公司 Bowl-shaped plug feeding and press-fitting device
CN109396851A (en) * 2018-12-21 2019-03-01 核动力运行研究所 A kind of micro- damage of shell-and-tube heat exchanger heat-transfer pipe takes pipe device and technique
CN109396851B (en) * 2018-12-21 2023-12-15 核动力运行研究所 Micro-damage tube taking device and process for heat transfer tube of shell-and-tube heat exchanger

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