KR20100117214A - Pipe spring hanger load confidence testing method & measure jig system - Google Patents
Pipe spring hanger load confidence testing method & measure jig system Download PDFInfo
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- KR20100117214A KR20100117214A KR1020090035836A KR20090035836A KR20100117214A KR 20100117214 A KR20100117214 A KR 20100117214A KR 1020090035836 A KR1020090035836 A KR 1020090035836A KR 20090035836 A KR20090035836 A KR 20090035836A KR 20100117214 A KR20100117214 A KR 20100117214A
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- 238000012360 testing method Methods 0.000 title abstract description 4
- 238000011156 evaluation Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims 1
- 238000011179 visual inspection Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 6
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- 238000010586 diagram Methods 0.000 description 2
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- 238000007689 inspection Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/14—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads
- G01G19/18—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads having electrical weight-sensitive devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
- G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
- G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
- G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means
- G01G23/3735—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means using a digital network
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
- G01G23/38—Recording and/or coding devices specially adapted for weighing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/13—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing having piezoelectric or piezoresistive properties
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Abstract
Description
배관의 진동등에 대한 충격을 감소시키고 열팽창량의 저항력에 대한 응력을 해소하도록 배관의 형태와 무게에 따라 설계되어 설치된 탄성체인 Spring Hanger의 하중은 오랜 기간 발전소 운전조건에 의해 배관의 팽창과 수축이 반복됨으로 인하여 피로를 받게 된다. 더욱이 고온(500℃), 고압200(kg/㎠)의 극한 환경속에서 가동되는 보일러에 설치된 배관은 내열강을 사용함에도 불구하고 취약성을 갖게 되며, 탄성 한계를 지나 영구변형인 소성변형을 하게 된다. 이때 하중변동률이 25％이내에 사용되도록 한 Variable Spring Hanger와 하중변동율이 0％로 설계된 Constant Spring Hanger로 총칭하는 Spring Hanger의 역할이 매우 중요하며, 이미 탄성 영역을 벗어나 영구변형된 Hanger 뿐만 아니라 탄성 영역안에 들어있는 배관에서의 Spring Hanger의 역할은 매우 중요하다. 이는 Hanger를 설계할 때 고려한 부분과는 달리 그때 그때의 운전 환경 및 운전 조건등에 따라 설비 및 배관의 condition이 달라지고 설계 당시의 지지상태 및 배관의 변위와 이미 많은 차이를 보이고 있기 때문이다. 또한 이러한 배관 및 설비의 지지상태를 바로 알 수 있는 방법은 이 Spring Hanger를 통해서 나타나므로 Spring Hanger의 건전성을 잘 유지 하여도 배관 및 설비의 지지상태의 신뢰성을 평가하는 큰 도움이 된다. 이에 이러한 주요설비를 지지하고 그 지지의 건전성을 평가하는데 지표가 되는 "배관계의 Spring Hanger 하중 신뢰성 평가 방법 및 Measure Jig System" 에 관한 것을 고안하고자 한다.The load of the spring hanger, an elastic body designed and installed according to the shape and weight of the pipe to reduce the impact on the vibration of the pipe and to relieve the stress of the resistance of thermal expansion, is repeated for a long time. You will be tired. In addition, piping installed in a boiler operating in extreme environments of high temperature (500 ℃), high pressure 200 (kg / ㎠) is vulnerable despite the use of heat-resistant steel, plastic deformation is a permanent deformation beyond the elastic limit. At this time, the role of the variable spring hanger that allows the load variation rate to be used within 25% and the constant spring hanger that is designed with the load variation rate of 0% is very important, and it is not only in the elastic region but also in the elastic region. The role of Spring Hanger in the piping is very important. This is because, unlike the parts considered in the design of the hanger, the condition of the equipment and piping varies depending on the operating environment and the operating conditions at that time, and it is already different from the support state and the displacement of the pipe at the time of design. In addition, the way to know the support status of the pipe and equipment is shown through this spring hanger, so it is very helpful to evaluate the reliability of the support status of the pipe and equipment even if the integrity of the spring hanger is well maintained. In this regard, we intend to devise a method to evaluate the spring hanger load reliability and measure jig system of piping system, which is an indicator for supporting the main facilities and evaluating the soundness of the support.
본 발명은 여러 종류의 배관지지장치 중에서도 "배관계의 Spring Hanger 하중 신뢰성 평가 방법 및 Measure Jig System " 에 관한 것이다.The present invention relates to "Spring Hanger Load Reliability Evaluation Method and Measurement Jig System of Piping System" among various types of pipe support devices.
일반적으로 Spring Hanger, Constant Spring Hanger, Spring Support type의 배관 지지장치는 Spring 또는 Spring의 동작특성 등에 의한 열변형률이 큰 곳에 많이 사용된다.Generally, pipe support devices of spring hanger, constant spring hanger, and spring support type are frequently used in places where thermal strain is large due to spring or spring operation characteristics.
이러한 행거는 열변형률과 배관의 자중에 따라 용량 및 지지능력 또한 달라지므로 배관계의 건전성을 평가할 시 이들의 단위 개별 용량은 매우 중요한 요인이 된다. 그러므로 배관계는 개별 행거 각기의 능력에 따른 전체 System에 의한 건전성 평가를 필요로 한다. 하지만 기존의 배관지지장치나 행거의 하중을 측정하거나 건전성을 평가하는 기술은 단지 눈금을 읽는다든가 아니면 공장으로 배관지지장치류를 분리해 가져가서 고장난 부분을 수리하거나 정비하여 제작설비를 가지고 재측정하는 것이 전부여서 발전소의 계획예방정비기간동안 그 작업을 한다는 것은 사실 불가능한 것이었고, 그 후로 진보된 기술이 "배관이 설치된 상태에서 배관지지장치의 건전성 평가" 에 대한 부분이지만 배관에 설치되어있는 개별 행거에 대해 점검 방법이나 절차가 복잡하고 하중을 평가하기 위한 측정 기구등이 중량화 되어 있으 며 측정하고자 하는 배관지지장치의 형상 및 size에 따라 평가하는데 한계가 있어 어느 지지장치에도 적용가능하며, 경량화되고 System을 간소화한 본 고안을 하게 되었다.Since these hangers have different capacity and supporting capacity depending on the thermal strain and the weight of the pipe, their individual capacity is very important when evaluating the health of piping system. Therefore, piping system requires soundness assessment by the whole system according to each hanger's ability. However, the technique of measuring the load or evaluating the soundness of the existing pipe support or hanger is to read the scale or take the pipe support to the factory and repair or repair the broken part and re-measure it with the manufacturing equipment. It was virtually impossible to do the work during the planned preventive maintenance period of the power plant, and since then the advanced technology is part of the "Integrity Assessment of Piping Supports with Piping Installed", but the individual hangers installed in the piping. The inspection methods and procedures are complicated, and the measuring instruments for evaluating the load are weighted, and there is a limit to the evaluation according to the shape and size of the pipe supporting apparatus to be measured. The present invention is made to simplify the system.
발전용 배관은 전기를 제작하기위한 가장 중요한 설비임에도 불구하고 배관을 지지하고 있는 수단에 대해서 관리가 미흡했던 것이 사실이다. 그래서 본 발명은 이러한 배관지지장치인 Spring Hanger의 신뢰성을 평가하기위한 절차와 방법을 고안 확립하였으며 이때까지 Hanger의 상태를 측정할 수 없었던 Jig를 고안하여 어느 지지장치에도 신뢰성평가를 적용, 가능하도록 하여 설비의 안정과 신뢰성확립에 이바지 하는데 그 목적이 있다.Although power generation piping is the most important facility for producing electricity, it is true that the management of the means for supporting the piping is insufficient. Therefore, the present invention devised and established the procedure and method for evaluating the reliability of the spring hanger, which is such a pipe support device, and devised a jig that could not measure the state of the hanger until then, so that the reliability evaluation can be applied to any support device. The purpose is to contribute to the stability and reliability of the equipment.
발전용 배관 지지장치인 Spring Hanger의 현 상태를 정확히 진단하고 평가하면서도 실제 배관과 행거를 분해하지 않아야한다. 과거에는 배관을 별도로 지지하기 위해서 그 행거의 지지용량에 상응하는 체인블록등의 간접 지지장치를 배관의 고정부에 설치하는 공정이 포함되었는데 본 발명에서는 하부 배관을 별도로 지지하지 않아도 배관의 고정과 Spring 압축을 통한 하중 신뢰성평가가 동시에 이루어질 수 있도록 하는 장치의 고안과 Spring 가압 상부 jig와 Cylinder가 각각 존재함으로 연결부 클리어런스에 의해 측정 오차가 발생하고 각각의 설치에 따른 시간이 많이 소요되었던 부분을 대신하여 Spring 가압 상부 jig를 Cylinder와 일체화하여 가 압하는 상부 Spring 가압 Jig와, 블루투스 통신으로 길이값을 송수신하고 압력을 하중으로 변환시켜주는 Pressure Transmitter 와 Load Cell의 설치 및 Data처리 방법에 있다.While accurately diagnosing and evaluating the current status of the spring hanger, the power line piping support, the actual pipes and hangers should not be disassembled. In the past, in order to support the pipe separately, an indirect supporting device such as a chain block corresponding to the support capacity of the hanger was included in the fixing part of the pipe. Design of a device that allows simultaneous evaluation of load reliability through compression and spring press-up jig and cylinder exist, respectively, so that measurement error occurs due to connection clearance, and instead of the time-consuming part of each installation, Spring The upper spring press jig that integrates the pressurized upper jig with the cylinder and pressurizes it, and the pressure transmitter and load cell for transmitting and receiving the length value through Bluetooth communication and converting the pressure into the load, and data processing method.
본 발명은 Spring Hanger의 건전성을 평가하기에 배관을 따로 고정하는등의 별도 장비 및 공정이 필요없고, Spring 가압Jig와 Cylinder와 Load Cell이 일체화 되어있으며 경량화되어 있으므로 발전용 배관의 특징인 필수적인 고소작업에서 안전성과 운반성이 탁월하고, Jig 및Cylinder의 Connector부를 없애므로 연결부의 여유로 인한 측정 및 평가 오차를 줄일 수 있으므로 data의 신뢰도가 탁월하게 증진된다. 또한 Compact 해진 형상만큼 경량 Spring Hanger 및 배관을 연결해주는 Rod부가 짧은 Hanger에 대해서도 하중에 대한 신뢰성 평가가 가능해 진 것에 큰 효과가 있다.In order to evaluate the integrity of the spring hanger, the present invention does not require separate equipment and processes such as fixing the pipes separately, and the spring press jig, the cylinder, and the load cell are integrated and lightweight, which is essential for the operation of power generation. Excellent safety and transportability, and eliminating the connector part of Jig and Cylindrometer can reduce the measurement and evaluation error due to the margin of the connector, thereby improving the reliability of the data. In addition, the lightweight spring hanger as well as the compacted shape and the rod part connecting the pipe have a great effect on the reliability evaluation of the load even for the short hanger.
배관계의 Spring Hanger 하중 신뢰성 평가 방법 및 Measure Jig System을 첨부된 도면과 같이 설명하면 [도 1-1] 과 [도 1-2]와 같이 배관에 설치되어있는 Hanger에 대한 하중 신뢰성 평가 방법에서의 절차는 다음과 같다.When explaining the spring hanger load reliability evaluation method and the measuring jig system of the piping system as shown in the accompanying drawings, the procedure in the load reliability evaluation method for the hanger installed in the pipe as shown in [Fig. 1-1] and [Fig. 1-2]. Is as follows.
1.먼저 Spring Hanger에 대한 육안점검을 실시한다.1. First, visually inspect the spring hanger.
가. 기동상태(Hot상태)에서 배관계에 설치되어 있는 배관지지장치의 설치상태 및 장소 , 종류를 1point를 잡아서 Isometric dwg를 도시해 가며 점검하기 시작한다.end. In the starting state (Hot state), take 1 point to check the installation status, location, and type of the pipe support device installed in the piping system.
나. 이때 개별 배관지지장치의 각기 상태 및 종류, 설계 용량, 현상태를 기록해 나가기 시작한다.I. At this time, it starts to record the status, type, design capacity and status of each pipe support.
1) 현상태의 Position과 Travel Indicator의 눈금위치를 기록한다.1) Record the position of present status and the scale position of travel indicator.
2) 이때, Travel Indicator 의 눈금이 설계눈금과 20％이상 상이하다거나 Top 또는 Bottom방향으로 Touch되어 있다면 특별히 유의 하여 기록 하여야한다.2) At this time, if the scale of travel indicator is more than 20% different from the design scale or touched in the top or bottom direction, special note should be recorded.
3) 보일러 가동 정지 후 배관이 완전히 식으면 Cold상태에서 가항에서 나항까지를 순차적으로 점검한다.3) If the pipe is completely cooled after the boiler is stopped, check the ports from stern to sequential in cold condition.
4) Hot과 Cold간 점검한 상태를 토대로 하중 및 변위량에 이상이 있거나 특이한 상태를 보이는 배관지지장치에 대하여 건전성 평가 대상을 확정한다.4) Based on the inspection between hot and cold, the soundness evaluation target is determined for the pipe support device that shows abnormal or unusual condition in load and displacement.
5) 배관지지장치는 앞에서 언급했듯 배관계에 따라서 지지장치의 수량과 형식이 다르기 때문에 그 특성에 맞도록 평가를 해야하는데 가장 중요한 것은 각각의 고유한 역할과 그에 따른 지지능력을 평가하는 것이다.5) As mentioned above, the pipe support system has to be evaluated according to its characteristics because the number and type of support devices are different according to the piping system. The most important thing is to evaluate each unique role and its supporting ability.
2. 배관에 걸린 Spring Hanger 하중 신뢰성 평가 방법은 첨부된 도면과 같은 방법으로 적용하여 실시하는데 상세히 설명하면 다음과 같다.2. Spring Hanger load reliability evaluation method of pipe is applied by the same method as the attached drawings.
[도1-1]과 [도1-2]의 ① Cylinder Upper Pulling Jig 및 Upper Pulling Jig를 Spring 을 압축할 수 있도록 견고히 부착한다. 이때 [도1-1] Hanger의 ① Cylinder Upper Pulling Jig은 spring 상부를 가압하기위한 별도의 "ㄱ" 형상을 가지고 있으며 ⑤Hanger Rod의 길이가 짧더라도 측정할 수 있도록 ㄱ형상의 Spring의 걸림부분과 Cylinder가 일체화 되어있는 구조이어야 한다. [도1-1] Spring Hanger 하중 신뢰성 평가 시에는 양쪽으로 벌어져 Spring Hanger에서 탈락하는 것에 대한 안전장치로 ② Mid 수직 고정날개 Cylinder Jig를 설치하여 볼트로 고정한다. 인가된 하중을 정확히 측정하기위해 ③Load Cell을 [도1-1]과 [도1-2]의 ②Mid 수직 고정날개 Cylinder Jig 및 Cylinder하부와 ⑤Hanger Rod에 견고히 고정된 ④Upper Rod고정 Jig에 설치한다.① Cylinder Upper Pulling Jig and Upper Pulling Jig of [Figure 1-1] and [Figure 1-2] are firmly attached to compress the Spring. [Figure 1-1] ① Cylinder Upper Pulling Jig of Hanger has separate "a" shape to press spring upper part and ⑤ Hanging part and cylinder of A shape spring to measure even if length of Hanger Rod is short. Should be integrated structure. [Fig.1-1] When evaluating the reliability of spring hanger load, as a safety device against falling from the spring hanger, it is secured by bolts by installing ② mid vertical fixed wing cylinder jig. To accurately measure the applied load, install ③Load Cell on ②Mid vertical fixed wing cylinder jig of [Fig.1-1] and [Fig. 1-2], and ④Upper Rod fixing Jig which is fixed firmly to ⑤Hanger Rod.
⑤Hanger Rod에 견고히 고정된 ④Upper Rod고정 Jig는 하중 인가 시 배관을 고정함과 동시에 Spring을 가압하여 활동시킬 고정장치이다.⑤Upper Rod Fixing Jig, which is firmly fixed to Hanger Rod, is a fixing device that pressurizes the spring and at the same time to fix the pipe when load is applied.
신뢰성있는 data가 산출되도록 하기위해서 측정하고자 하는 배관지장치의 고정부와 활동부에 Test 장치를 견고히 부착하여야하는데 통신 System은 [도2]와 같다.In order to calculate reliable data, the test device must be firmly attached to the fixed part and the active part of the pipe paper device to be measured. The communication system is as shown in FIG.
[도2]의 무선 LVDT(100)는 블루투스 통신(200)을 통해 길이 값을 서로 송수신한다. 압력센서(400)는 압력이 인가되는 것을 어플리케이션보드(300)를 통해 받아드리고 그 data는 PC와 시리얼통신(500)을 통해 전송되어 data를 받아드리게 된다.The
이러한 절차와 방법으로 배관계의 Spring Hanger 하중 신뢰성 평가를 실시하며 [도1-1], [도1-2], [도2]의 Measure Jig System을 적용하여 신뢰성있는 data가 산출되며 수 있도록 하는 것이다.Through this procedure and method, Spring Hanger load reliability evaluation of piping system is carried out and reliable data can be calculated and applied by measuring Jig System of [Figure 1-1], [1-2], [Figure 2]. .
도1-1. Spring Hanger 하중 신뢰성 평가도Figure 1-1. Spring Hanger Load Reliability Evaluation Diagram
도1-2. Constant Spring Hanger 하중 신뢰성 평가도Figure 1-2. Constant Spring Hanger Load Reliability Diagram
도 2. 길이 및 압력 송수신 data 전송 방법Figure 2. Length and pressure data transmission and reception method
Claims (2)
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| KR1020090035836A KR20100117214A (en) | 2009-04-24 | 2009-04-24 | Pipe spring hanger load confidence testing method & measure jig system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101158250B1 (en) * | 2011-07-11 | 2012-06-19 | 주식회사백상 | Pipe Line Evaluation and Repair Methods using Measured Linear Coefficient |
| KR101238584B1 (en) * | 2012-01-16 | 2013-02-28 | 주식회사백상 | On-Line Evaluation Technique of the Spring Support |
| KR101285439B1 (en) * | 2013-04-15 | 2013-07-12 | 주식회사백상 | Performance Tester and the Methods of Spring Hanger |
| KR101349579B1 (en) * | 2013-08-26 | 2014-01-08 | 주식회사 한발 | The Method and Device of Preventing the Piping Sagging during Hanger Test |
| CN104827235A (en) * | 2015-05-13 | 2015-08-12 | 国网山东荣成市供电公司 | Hoisting and aligning device for welding cylindrical bar-shaped object |
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2009
- 2009-04-24 KR KR1020090035836A patent/KR20100117214A/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101158250B1 (en) * | 2011-07-11 | 2012-06-19 | 주식회사백상 | Pipe Line Evaluation and Repair Methods using Measured Linear Coefficient |
| KR101238584B1 (en) * | 2012-01-16 | 2013-02-28 | 주식회사백상 | On-Line Evaluation Technique of the Spring Support |
| WO2013109047A1 (en) * | 2012-01-16 | 2013-07-25 | 주식회사 백상 | Method and apparatus for testing performance of spring support |
| KR101285439B1 (en) * | 2013-04-15 | 2013-07-12 | 주식회사백상 | Performance Tester and the Methods of Spring Hanger |
| KR101349579B1 (en) * | 2013-08-26 | 2014-01-08 | 주식회사 한발 | The Method and Device of Preventing the Piping Sagging during Hanger Test |
| CN104827235A (en) * | 2015-05-13 | 2015-08-12 | 国网山东荣成市供电公司 | Hoisting and aligning device for welding cylindrical bar-shaped object |
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