KR100283696B1 - The automatic valve lapping system - Google Patents
The automatic valve lapping system Download PDFInfo
- Publication number
- KR100283696B1 KR100283696B1 KR1019990000035A KR19990000035A KR100283696B1 KR 100283696 B1 KR100283696 B1 KR 100283696B1 KR 1019990000035 A KR1019990000035 A KR 1019990000035A KR 19990000035 A KR19990000035 A KR 19990000035A KR 100283696 B1 KR100283696 B1 KR 100283696B1
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- wrapping
- lapping
- seat
- shaft
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000004519 grease Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
본 발명은 플랜트의 장기운전이나 배관을 흐르는 유체에 이물질이 많이 섞여 흐를 경우 밸브 씨트와 디스크가 마모되어 밸브를 전폐하여도 누설이 발생하여 플랜트 사이클 효율을 저하시킨다. 플랜트의 장기운전이나 유체중에 함유된 이물질이 밸브 씨트와 디스크에 마모를 유발시켜 밸브가 누설될 경우 누설을 방지하기 위한 보수작업과 밸브를 최초로 제작할 때 씨트와 디스크를 래핑하는 래핑작업을 자동화하는데 본 발명의 목적이 있다.According to the present invention, when a large amount of foreign matter flows in a long-term operation of the plant or a fluid flowing through a pipe, the valve seat and the disc may be worn and leak even when the valve is closed, thereby reducing the plant cycle efficiency. Automated maintenance work to prevent leakage if the valve leaks due to long-term operation of the plant or foreign matter in the fluid causes wear on the valve seat and disc.It also automates the wrapping operation of wrapping the seat and disc when the valve is first manufactured. There is an object of the invention.
종래에는 수작업에 의하여 래핑을 함으로서 래핑후에도 밸브가 누설되는 작업 오차가 많이 발생하고 작업 비용이 많이 들어 비경제적이었다. 그러나, 본 발명에서는 밸브 씨트와 디스크를 래핑할 때에 씨트와 디스크가 전면적이 골고루 접촉하면서 일정하게 표면처리 되도록 일전한 힘으로 씨트를 장치와 씨트와 디스크가 원형을 그리며 돌도록 회전축이 자동적으로 중심을 잡아주는 구형 자동조심장치, 인위적으로 래핑축의 각도를 유지하는 경사각 조절장치를 개발하고, 하나의 래핑장치로서 여러 사이즈의 밸브를 래핑할 수 있도록 융통성을 주고자 하였다. 특히, 밸브를 현장에서 절단하여 공장으로 가져오지 않고 배관에 설치된 상태에서 작업이 가능하도록 하였다.In the related art, by lapping by hand, a large number of working errors occur due to leakage of the valve even after lapping, and a high working cost is uneconomical. However, in the present invention, when the valve seat and the disk are wrapped, the rotating shaft automatically rotates the center so that the seat, the disk and the disk rotate in a circular shape with a single force such that the seat and the disk are uniformly contacted with the entire surface. We developed a spherical self-aligning device to hold, an inclination angle adjusting device that artificially maintains the angle of the wrapping shaft, and gave flexibility to wrap valves of various sizes as one wrapping device. In particular, it was possible to work in a state that is installed in the pipe without cutting the valve in the field and brought to the factory.
밸브를 공장으로 반입하지 않은 플랜트 현장에서 밸브 커버만을 분해하고 밸브 래핑장치를 설치하여 자동으로 래핑작업을 수행하기 위하여 밸브 몸체위에 다양한 사이즈의 밸브에도 조립이 가능하도록 볼트홈을 가공하고, 조립용 볼트로서 밸브 몸체와 래핑장치를 고정한 후 모터에 설치된 스프링의 장력을 조절하여 래핑 디스크가 씨트를 누르는 힘의 정도를 조절하면서 씨트와 디스크가 최적 위치에서 상대운동 할 수 있도록 래핑축에 자동조심장치를 두고, 래핑축과 모터의 축간에 발생하는 각도는 유니버설 조인트에서 흡수할 수 있도록 하였으며 래핑 도중에도 밸브 내부를 검사하고 래핑 콤파운드를 주입할 수 있도록 검사공을 설치하여 모터가 회전하면서 래핑축이 임의의 각도로 변화할 수 있고, 디스크를 누르는 힘을 조절할 수 있으며, 임의로 래핑축의 각도를 변환할 수 있는 자동 밸브 래핑 방법을 개발함으로서 그동안 수작업에 의존하여 오던 밸브 래핑 기술의 혁신을 기할 수 있다.In order to disassemble the valve cover only at the plant site where the valve is not brought into the factory, and to install the valve wrapping device to perform the wrapping automatically, the bolt grooves are machined to be assembled to various sizes of valves on the valve body. After fixing the valve body and the lapping device, it is possible to adjust the tension of the spring installed on the motor to adjust the degree of force that the lapping disc presses the seat, and to have the automatic circumference device on the lapping shaft so that the seat and the disk can move relative to each other at the optimum position. The angle between the lapping shaft and the shaft of the motor can be absorbed by the universal joint.The lapping shaft can be rotated by rotating the motor while inspecting the inside of the valve and injecting the wrapping compound during lapping. Can be changed, the force to press the disc can be adjusted, and By developing an automatic valve wrapping method that can convert a wrap angle axis meantime we can talk to the hand Technical innovation of the valve wrapped ohdeon depending on.
Description
본 발명은 플랜트의 장기운전이나 배관을 흐르는 유체에 이물질이 많이 섞여 흐를 경우 밸브 씨트와 디스크가 마모되어 밸브를 전폐하여도 누설이 발생하여 플랜트 사이클 효율을 저하시킨다. 플랜트의 장기운전이나 유체중에 함유된 이물질이 밸브 씨트와 디스크에 마모를 유발시켜 밸브가 누설될 경우 누설을 방지하기 위한 보수작업과 밸브를 최초로 제작할 때 씨트와 디스크를 래핑하는 래핑작업을 자동화하는데 본 발명의 목적이 있다.According to the present invention, when a large amount of foreign matter flows in a long-term operation of the plant or a fluid flowing through a pipe, the valve seat and the disc may be worn and leak even when the valve is closed, thereby reducing the plant cycle efficiency. Automated maintenance work to prevent leakage if the valve leaks due to long-term operation of the plant or foreign matter in the fluid causes wear on the valve seat and disc.It also automates the wrapping operation of wrapping the seat and disc when the valve is first manufactured. There is an object of the invention.
본 발명은 밸브 래핑에 관한 기술이며 종래에는 수작업에 의하여 래핑을 함으로서 래핑후에도 밸브가 누설되는 작업 오차가 많이 발생하고 작업 비용이 많이 들어 비경제적이었다.The present invention relates to a valve lapping technique, and in the related art, a lapping by manual labor causes a large amount of work error in which a valve leaks even after lapping, and a high work cost.
본 발명에서는 밸브 씨트와 디스크를 래핑할 때에 씨트와 디스크가 전면적이 골고루 접촉하면서 일정하게 표면처리 되도록 일전한 힘으로 씨트를 장치와 씨트와 디스크가 원형을 그리며 돌도록 회전축이 자동적으로 중심을 잡아주는 구형 자동조심장치, 인위적으로 래핑축의 각도를 유지하는 경사각 조절장치를 개발하고, 하나의 래핑장치로서 여러 사이즈의 밸브를 래핑할 수 있도록 융통성을 주고자 하였다. 특히, 밸브를 현장에서 절단하여 공장으로 가져오지 않고 배관에 설치된 상태에서 작업이 가능하도록 하였다.According to the present invention, when the valve seat and the disk are wrapped, the axis of rotation is automatically centered so that the device and the seat and the disk rotate in a circular shape with a single force so that the seat and the disk are in uniform contact with the entire surface. We developed a spherical self-aligning device, an inclination angle adjusting device that artificially maintains the angle of the lapping shaft, and gave flexibility to wrap valves of various sizes as one lapping device. In particular, it was possible to work in a state that is installed in the pipe without cutting the valve in the field and brought to the factory.
도 1은 본 발명에 자동 밸브 래핑 장치의 일 실시예1 is an embodiment of an automatic valve wrapping apparatus according to the present invention
도 2는 본 발명에 자동 밸브 래핑 장치의 평면도Figure 2 is a plan view of the automatic valve wrapping apparatus in the present invention
* 도면의 주요부분에 대한 설명* Description of the main parts of the drawings
10 : 모터 20 : 래핑 축 30 : 밸브 몸체10 motor 20 lapping shaft 30 valve body
40 : 지지판 50 : 래핑장치 몸체 60 : 모터 지지대40: support plate 50: lapping apparatus body 60: motor support
70 : 경사각 조절장치 21 : 유니버설 조인트70: inclination angle adjusting device 21: universal joint
본 발명은 플랜트의 장기운전이나 배관을 흐르는 유체에 이물질이 많이 섞여 흐를 경우 밸브 씨트와 디스크가 마모되어 밸브를 전폐하여도 누설이 발생하여 플랜트 사이클 효율을 저하시킨다. 이와같은 밸브 누설을 방지하기 위하여는 밸브 씨트와 디스크사이에 래핑 콤파운드를 바르고 밸브씨트위에 디스클 올려 놓고 손으로 회전시켜 마모부위를 갈아내는 래핑 작업을 수행하였다. 그러나 본 발명에서는 밸브 씨트 래핑작업을 기계가 자동으로 수행하도록 발명하였다.According to the present invention, when a large amount of foreign matter flows in a long-term operation of the plant or a fluid flowing through a pipe, the valve seat and the disc may be worn and leak even when the valve is closed, thereby reducing the plant cycle efficiency. In order to prevent such valve leakage, a wrapping compound was applied between the valve seat and the disc, the disc seated on the valve seat was rotated by hand, and the lapping work was performed to change the wear area. However, in the present invention, the valve seat lapping operation is invented so that the machine automatically performs.
밸브 씨트(31)위에는 래핑 콤파운드를 바르고 디스크(23)(또는 래핑을 위하여 디스크와 동일하게 제작한 공구)를 접촉시킨 후 디스크(23)가 연결된 래핑축(20)을 일정한 속도로 회전시켜 래핑작업을 수행한다. 래핑축(20)은 래핑장치 최상부에 고정된 모터(10)가 구동하며 모터는 밸브 몸체위에 고정된 모터 지지대(60)에 지지되어 있다. 모터는 모터 지지대(60)에 스프링을 사이에 두고 체결된 볼트(12A-D)에 의하여 지지될 뿐만 아니라 밸브 씨트를 모터의 자중과 스프링의 힘으로 눌러주고 있어 항시 일정한 힘으로 밸브 씨트와 디스크가 눌린 상태에서 래핑작업이 수행된다. 이 힘은 볼트의 높이를 조절하여 스프링 힘을 조절함으로써 내려 누르는 힘의 크기를 조절할 수 있다. 씨트(31)와 디스크(23)가 진원을 그리며 래핑작업을 할 수 있도록 하기 위하여 회전축의 중간에 자동조심장치(22)가 있다. 본 자동조심장치는 밸브씨트 면과 디스크가 전면 접촉을 하면서 원형을 유지하도록 하기 위하여 씨트와 디스크의 접촉상태를 따라가며 회전축의 각도를 조절할 수 있도록 구면으로 형성되어 있다. 필요시 임의로 회전축의 각도를 조절하고자 할 때에는 자동조심장치 윗 표면에 90。각도로 4개가 배열되어 있고 최하부에 롤러가 있는 회전축 경사각 조절장치(70)의 높이를 상대적으로 조절하여 소요의 각도를 유지할 수 있다. 자동 조심작용이나 임의 회전축 제어시 고정된 모터축과 회전축(20)의 차이나는 각도는 모터와 회전축을 연결하는 유니버설 조인트(21)가 흡수한다. 래핑장치는 밸브몸체(30) 위에 원판형으로 된 지지판(40)에 ㄱ자 형으로된 볼트(41A-D)를 조임으로서 단단하게 지지된다. 밸브의 크기에 따라 유연하게 래핑작업이 가능하도록 하기 위하여 지지판 고장용 볼트홈(44A-D)은 일자형으로 길게 가공함으로서 다양한 직경의 밸브 몸체에도 적용할 수 있다. 래핑 작업도중에 밸브 내부를 검사하고 래핑콤파운드등을 주입하기 위하여 지지판(40)에는 적당한 수의 검사공(46A-D)이 있다.Lapping compound is applied on the valve seat 31 and the disk 23 (or a tool manufactured in the same manner as the disk for lapping) is contacted, and the lapping operation is performed by rotating the wrapping shaft 20 to which the disk 23 is connected at a constant speed. Do this. The wrapping shaft 20 is driven by a motor 10 fixed to the top of the wrapping device, and the motor is supported by a motor support 60 fixed on the valve body. The motor is not only supported by the bolts 12A-D fastened to the motor support 60 with the springs interposed therebetween, and the valve seat and the disc are always pressed by the force of the spring and the force of the spring. Lapping is carried out in the depressed state. This force can be adjusted by adjusting the height of the bolt to adjust the amount of force that is pushed down. In order to enable the seat 31 and the disk 23 to be wrapped in a circle, there is an automatic watch device 22 in the middle of the rotating shaft. This self-aligning device is formed in a spherical shape to adjust the angle of the rotation axis while following the contact state of the seat and the disk in order to maintain the circular shape while the valve seat surface and the disk in front contact. If necessary, if you want to adjust the angle of the rotation axis arbitrarily, four angles are arranged at 90 ° on the upper surface of the self-aligning device and the rollers at the bottom are relatively adjusted to maintain the required angle by relatively adjusting the height of the rotation axis tilt angle adjusting device 70. Can be. The difference between the fixed motor shaft and the rotating shaft 20 during the self-aligning operation or the control of the arbitrary rotating shaft is absorbed by the universal joint 21 connecting the motor and the rotating shaft. The wrapping device is firmly supported by tightening the bolts 41A-D in the shape of an L on the support plate 40 in the shape of a disc on the valve body 30. In order to enable a flexible wrapping operation according to the size of the valve, the support plate failure bolt groove 44A-D can be applied to the valve body of various diameters by processing long in a straight shape. There is an appropriate number of inspection holes 46A-D in the support plate 40 for inspecting the inside of the valve and injecting the wrapping compound during the lapping operation.
래핑축을 지지하기 위하여 베어링(51)이 있으며, 모터와 모터 지지대 사이에 스프링을 고정하기 위하여 스프링 지지판(11)등이 있다. 자동조심 장치를 지지하는 지지판을 고장하기 위한 볼트(42), 래핑 장치와 지지판을 연결하는 용접부위, 기타 여기 기술된 사항 외에도 모터에는 회전 속도를 제어하기 위한 속도 제어장치와 전기적 부속 장치들이 필연적으로 부가되어야 하고, 각 회전부위 마다 적절한 그리스 주입장치, 베어링을 지지하기위한 베어링 지지장치, 볼트에는 적절한 너트와 래핑축(20)과 래핑디스크(23)를 체결하기 위한 적절한 체결방식(예, 나사체결 또는 핀 체결)과 자동 조심장치를 축에 고정하는 방법, 유니버설 조인트와 축을 연결하는 방법등은 재래의 알려진 기술을 응용하면 되는 일이므로 여기서는 기술하지 않았다.There is a bearing 51 to support the lapping shaft, there is a spring support plate 11 and the like to fix the spring between the motor and the motor support. In addition to the bolts 42 for failure of the support plate supporting the self-aligning device, the welding portion connecting the lapping device and the support plate, and other matters described here, the motor is inevitably equipped with a speed control device and electrical accessories for controlling the rotational speed. Appropriate grease injection device for each rotating part, bearing support device for supporting the bearing, and proper fastening method for fastening the nut and the lapping shaft 20 and the lapping disk 23 to the bolt (e.g. screwing) Or pin fastening), the method of fastening the self-aligning device to the shaft, and the method of connecting the universal joint and the shaft are applicable to conventional known techniques and are not described here.
본 발명으로 플랜트에 설치된 현장에서 밸브를 절단하지 않고도 래핑을 할 수 있고, 작업 속도가 빠를 뿐만 아니라 래핑 작업의 정확도를 대폭 향상 시킴으로서 플랜트 설비 신뢰성 향상에 크게 이바지한다.According to the present invention, lapping can be performed without cutting valves in the field installed in the plant, and the work speed is not only high, but also greatly improves the accuracy of the lapping operation, thereby greatly improving plant equipment reliability.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990000035A KR100283696B1 (en) | 1999-01-04 | 1999-01-04 | The automatic valve lapping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990000035A KR100283696B1 (en) | 1999-01-04 | 1999-01-04 | The automatic valve lapping system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000050296A KR20000050296A (en) | 2000-08-05 |
| KR100283696B1 true KR100283696B1 (en) | 2001-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990000035A KR100283696B1 (en) | 1999-01-04 | 1999-01-04 | The automatic valve lapping system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030093402A (en) * | 2002-06-03 | 2003-12-11 | 백수곤 | The Method and Apparatus of Valve Lapping |
| KR102000118B1 (en) | 2019-02-19 | 2019-07-15 | 한전케이피에스 주식회사 | Lapping tool for electric tool lapping valve back seat |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102647970B1 (en) * | 2021-10-25 | 2024-03-18 | 한전케이피에스 주식회사 | A disk and a nozzle ring lapping device of a turbine valve |
-
1999
- 1999-01-04 KR KR1019990000035A patent/KR100283696B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030093402A (en) * | 2002-06-03 | 2003-12-11 | 백수곤 | The Method and Apparatus of Valve Lapping |
| KR102000118B1 (en) | 2019-02-19 | 2019-07-15 | 한전케이피에스 주식회사 | Lapping tool for electric tool lapping valve back seat |
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| Publication number | Publication date |
|---|---|
| KR20000050296A (en) | 2000-08-05 |
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