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KR200473024Y1 - External diameter and out of roundness measurement device for pipe - Google Patents

External diameter and out of roundness measurement device for pipe Download PDF

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KR200473024Y1
KR200473024Y1 KR2020130001378U KR20130001378U KR200473024Y1 KR 200473024 Y1 KR200473024 Y1 KR 200473024Y1 KR 2020130001378 U KR2020130001378 U KR 2020130001378U KR 20130001378 U KR20130001378 U KR 20130001378U KR 200473024 Y1 KR200473024 Y1 KR 200473024Y1
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roundness
pipe
outer diameter
dial gauge
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우래연
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한전케이피에스 주식회사
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
    • G01B5/201—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring roundness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/08—Detecting presence of flaws or irregularities

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  • General Health & Medical Sciences (AREA)
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  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

본 고안은 증기터빈 인입배관 외경 및 진원도 측정기에 관한 것으로서, 증기터빈 인입배관인 증기 안내파이프에 대한 외경 및 진원도 측정작업시 주변 구조물과의 간섭발생이 방지되어질 수 있도록 하여 측정작업이 보다 원활하게 이루어질 수 있도록 하기 위한 것이다.
이를 실현하기 위한 본 고안은, "+"형상으로 제작된 본체프레임(10)의 각 외측단에는 직각으로 꺽여진 형상을 이루는 다수의 다리부(20)가 구성되고; 상기 각 다리부(20)에는 배관의 외경 및 진원도 측정을 위한 다이얼게이지(30) 및 앤빌(40)이 선택적으로 구성된 것을 특징으로 한다.The present invention relates to an outer diameter and roundness measuring instrument for a steam turbine inlet pipe, and it is possible to prevent the occurrence of interference with surrounding structures during the measurement of the outer diameter and the roundness of the steam guide pipe, which is a steam turbine inlet pipe, .
To achieve this, the present invention is characterized in that a plurality of leg portions 20 are formed at each outer end of the body frame 10, which is formed in a "+" shape, in a bent shape at right angles; And a dial gauge 30 and an anvil 40 for measuring the outer diameter and roundness of the pipe are selectively formed on each of the leg portions 20. [

Description

증기터빈 인입배관 외경 및 진원도 측정기{EXTERNAL DIAMETER AND OUT OF ROUNDNESS MEASUREMENT DEVICE FOR PIPE}TECHNICAL FIELD [0001] The present invention relates to a steam turbine inlet pipe diameter and roundness meter,

본 고안은 배관 파이프 외경 및 진원도 측정기에 관한 것으로서, 더욱 상세하게는 증기터빈에 인입되어져 있는 배관파이프에 대한 외경 및 진원도 측정이 주변 구조물가의 간섭이 발생되지 않고 용이하게 이루어질 수 있도록 하는 인입배관 외경 및 진원도 측정기에 관한 것이다.
The present invention relates to a piping pipe outer diameter and roundness measuring device, and more particularly, to a piping pipe outer diameter and a roundness measuring device for measuring an outer diameter and a roundness of a piping pipe introduced into a steam turbine, To a roundness meter.

일반적으로, 화력발전소와 같이 증기의 열에너지를 이용하여 전기와 같은 동력을 발생시키는 곳에서는 대용량 보일러(BOILER)와 증기터빈(STEAM TURBINE) 및 발전기(GENERATOR) 및 그밖의 부대설비장치의 조합으로 증기원동소(STEAM AND POWER PLANT)의 기본 사이클이 구성되어 있다.Generally, in a place where the heat energy such as a thermal power plant is used to generate power such as electricity, a combination of a large capacity boiler, a steam turbine, a generator, and other auxiliary equipment, The basic cycle of STEAM AND POWER PLANT is composed.

그중 증기터빈에는 보일러로 부터 발생된 고압의 증기가 공급되어지게 되는데, 증기의 안내를 위한 안내파이프가 이너케이싱(Inner Casing)에 장착되어지게 된다.In the steam turbine, high-pressure steam generated from the boiler is supplied. A guide pipe for guiding the steam is installed in the inner casing.

즉, 도 1 및 도 2에서와 같이 이너케이싱(1)에는 외부 보일러로 부터 공급되는 증기를 내부의 노즐박스(미도시)로 안내하기 위한 안내파이프(2)가 설치된 것을 확인할 수 있다. 도면 중 미설명 부호 3은 노즐박스의 조립이 이루어지는 조립홈을 나타낸다.1 and 2, the inner casing 1 is provided with a guide pipe 2 for guiding the steam supplied from the outer boiler to the inner nozzle box (not shown). Reference numeral 3 in the drawing denotes an assembly groove in which the nozzle box is assembled.

이러한 안내파이프(2)는 노즐박스와 조립이 이루어지는 일측단부의 증기 누설을 방지하고 조립시 끼임을 방지하기 위해 적정 간극을 유지해주어야 한다.The guide pipe 2 should maintain a proper clearance in order to prevent leakage of steam at one end of the nozzle box and the assembly of the nozzle box and to prevent the nozzle from being caught during assembly.

한편, 발전소의 계획예방정비기간시 안내파이프(2)의 건전성을 판단하기 위해 안내파이프(2)의 외경 및 진원도를 측정해야 한다.On the other hand, the outer diameter and roundness of the guide pipe 2 must be measured in order to determine the soundness of the guide pipe 2 during the planned preventive maintenance period of the power plant.

그러나, 일반적인 외경 및 진원도 측정장비인 외경 마이크로미터(4)는 조립홈(3)에 삽입이 이루어질 수 없기 때문에 도 3에서와 같이 주변 구조물과의 간섭이 발생되어지게 되고, 이에 따른 정밀한 측정작업이 이루어지지 못하는 문제점이 있었다.However, since the outer diameter micrometer 4, which is a general outer diameter and roundness measuring instrument, can not be inserted into the mounting groove 3, interference with the peripheral structure is generated as shown in FIG. 3, There is a problem that it can not be achieved.

따라서, 종래에는 밴드형태의 파이테이프를 사용하여 파이프의 원둘레만을 측정하였으며, 진원도 측정작업은 실시할 수 없었다.
Therefore, conventionally, only the circumference of a pipe was measured using a band-shaped pi-tape, and roundness measurement work could not be performed.

본 고안은 상기한 종래 인입배관 외경 측정작업에 있어서의 문제점을 개선하기 위해 제안된 것으로서, 주변 구조물과의 간섭발생을 방지하는 가운데 증기터빈에 인입된 안내파이프에 대한 외경 및 진원도 측정이 용이하게 이루어질 수 있는 측정장비를 제공함으로서 작업효율 및 측정 정밀도를 향상시키도록 하는데 목적이 있다.
The present invention has been proposed in order to solve the problems in the above-mentioned conventional pipe diameter measurement work, and it is easy to measure the outer diameter and roundness of the guide pipe drawn into the steam turbine while preventing interference with the surrounding structure It is aimed to improve the working efficiency and the measurement accuracy by providing the measuring equipment which can be used.

상기 목적을 이루기 위한 본 고안은, "+"형상으로 제작된 본체프레임의 각 외측단에는 직각으로 꺽여진 형상을 이루는 다수의 다리부가 구성되고; 상기 각 다리부에는 배관의 외경 및 진원도 측정을 위한 다이얼게이지 및 앤빌이 선택적으로 구성된 것을 특징으로 한다.
In order to achieve the above object, the present invention is characterized in that a plurality of leg portions formed at right angles are formed at each outer end of a body frame made in a "+"shape; And a dial gauge and an anvil for measuring the outer diameter and roundness of the pipe are selectively formed on the respective leg portions.

이러한 본 고안의 측정기는, 증기터빈 인입배관인 증기 안내파이프에 대한 외경 및 진원도 측정작업시 주변 구조물과의 간섭발생이 방지되어질 수 있게 됨으로 측정작업이 보다 원활하게 이루어질 수 있는 효과를 나타낸다.
The measuring instrument of the present invention can prevent the occurrence of interference with the surrounding structures during the measurement of the outer diameter and the roundness of the steam guide pipe, which is the steam turbine inlet pipe, so that the measuring operation can be performed more smoothly.

도 1은 증기터빈의 인너케이싱에 안내파이프가 인입된 상태 단면도.
도 2는 인너케이싱의 안내파이프 인입부 정면 구조도.
도 3은 종래 외경 마이크로미터를 이용한 파이프 외경 측정작업 상태도.
도 4는 본 고안의 일 실시 예에 따른 외경 및 진원도 측정기 외관 사시도.
도 5는 본 고안 측정기를 이용한 인너케이싱 안내파이프 측정작업 측면 구조도.
도 6은 본 고안 측정기를 이용한 측정작업 정면도.
도 7은 본 고안의 다른 실시 예에 따른 측정기의 앤빌 단부 확대도.
도 8은 도 7의 A부 상세 단면도.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a guide tube drawn into an inner casing of a steam turbine. FIG.
Fig. 2 is a front structural view of a guide pipe inlet portion of the inner casing. Fig.
3 is a state view of a pipe outer diameter measurement operation using a conventional outer diameter micrometer.
4 is an external perspective view of an outer diameter and roundness measuring instrument according to one embodiment of the present invention;
5 is a side view of the inner casing guiding pipe measuring operation using the present measuring instrument.
6 is a front view of a measuring operation using the present measuring instrument.
7 is an enlarged view of the anvil end of the measuring instrument according to another embodiment of the present invention;
8 is a detailed cross-sectional view of part A of Fig.

이하, 본 고안의 구체적인 실시 예를 첨부된 도 4 내지 도 8을 통해 살펴보기로 한다.Hereinafter, a specific embodiment of the present invention will be described with reference to FIGS. 4 to 8. FIG.

먼저, 본 고안의 일 실시 예에 따른 외경 및 진원도 측정기 구조를 도 4를 통해 살펴보면, "+"형상으로 제작된 본체프레임(10)의 각 외측단에는 직각으로 꺽여진 형상을 이루는 4개의 다리부(20)가 구성되고, 각 다리부(20)에는 배관의 외경 및 진원도 측정을 위한 다이얼게이지(30) 2개 및 앤빌(40) 2개가 선택적으로 구성된 것을 확인할 수 있다.Referring to FIG. 4, the structure of the outer diameter and the roundness measuring instrument according to an embodiment of the present invention will be described. In each of the outer ends of the body frame 10 formed in a "+" shape, four legs It is confirmed that two dial gauges 30 and two anvils 40 are selectively formed on each of the leg portions 20 for measuring the outer diameter and roundness of the pipe.

즉, 앤빌(40)과 다이얼게이지(30)는 쌍을 이루어 상호 대향되는 다리부(20)에 구비되어져 있는데, 앤빌(40)은 다리부(20)에 일체로 고정 구비되며, 상기 다이얼게이지(30)는 다리부(20)에 형성된 관통공에 삽입된 상태에서 위치 조절이 가능하도록 조절스크류(31)에 의해 지지되어지게 된다.That is, the anvil 40 and the dial gauge 30 are provided on the leg portions 20 which are mutually opposed to each other. The anvil 40 is integrally fixed to the leg portion 20, and the dial gauge 30 are supported by the adjusting screw 31 so as to be adjustable in a state of being inserted into the through hole formed in the leg portion 20. [

이와 같은 구조를 이루는 본 고안 측정기의 사용에 따른 작용효과를 도 5 및 도 6을 통해 살펴보기로 한다.5 and 6, the operation and effect of using the present measuring instrument having the above structure will be described.

본 고안의 외경 및 진원도 측정기는 피측정물인 증기터빈 안내파이프(2)의 외경 및 진원도 측정작업에 사용되는 것으로서, 먼저 다리부(20)의 2개소에 다이얼게이지(30)를 관통 부착시킨 상태에서 마스터링을 이용하여 "0"을 세팅한 후 세팅위치를 조절스크류(31)로 고정시킨 상태에서 안내파이프(2)의 외경 및 진원도 측정작업이 이루어지게 된다.The outer diameter and roundness measuring instrument of the present invention is used for measurement of the outer diameter and roundness of the steam turbine guide pipe 2 as a measured object. First, in a state where the dial gauge 30 is attached to two places of the leg portion 20 The outer diameter and roundness of the guide pipe 2 are measured while the setting position is fixed by the adjusting screw 31 after setting "0" by using the mastering.

즉, 이때에는 조립홈(3) 부위에 다리부(20)를 인입시켜 파이프 축방향 및 외경방향으로 서서히 이동시킴으로서 다이얼게이지(30)를 이용한 안내파이프(2)의 외경 변화를 확인할 수 있게 되고, 이에 따른 안내파이프(2)의 외경 및 진원도 측정이 가능하게 되는 것이다.
That is, at this time, the leg portion 20 is pulled in the assembly groove 3 and is gradually moved in the pipe axis direction and the outer diameter direction, so that the change of the outer diameter of the guide pipe 2 using the dial gauge 30 can be confirmed, The outer diameter and roundness of the guide pipe 2 can be measured.

한편, 도 7 및 도 8은 본 고안의 다른 실시 예에 따른 측정기 구조를 나타낸 것이다.7 and 8 show the structure of a measuring instrument according to another embodiment of the present invention.

즉, 도시된 바와 같이 앤빌(40)의 단부에는 회전용 로울러(41)가 회동방향이 자유롭도록 결합 구비되어져 있으며, 로울러(41) 외표면에는 윤활성의 테프론수지층(42)이 코팅 형성된 것을 확인할 수 있다.That is, as shown in the figure, the rotating roller 41 is coupled to the end of the anvil 40 so as to be freely rotatable, and the lubricant Teflon resin layer 42 is coated on the outer surface of the roller 41 .

이와 같은 구조를 이루게 되면, 안내파이프(2)의 외주면에 다이얼게이지(30) 및 엔빌(40)이 접촉된 상태에서 측정기를 전,후진 시키거나 회전시키는 과정에서 회전용 로울러(41)에 의해 위치 이동이 보다 원활하게 이루어질 수 있게 되어 보다 효과적인 측정작업이 이루어질 수 있게 된다.When the dial gauge 30 and the envelope 40 are in contact with the outer circumferential surface of the guide pipe 2 in this state, The movement can be performed more smoothly, and more effective measurement can be performed.

특히, 로울러(41) 표면에 테프론수지층(42)이 코팅 형성됨으로서 측정작업 과정에서 안내파이프(2) 외표면의 손상발생을 방지할 수 있는 이점을 나타내게 된다.
Particularly, since the Teflon resin layer 42 is coated on the surface of the roller 41, it is possible to prevent damage to the outer surface of the guide pipe 2 during the measuring operation.

1 : 이너케이싱 2 : 안내파이프
3 : 조립홈 4 : 외경 마이크로미터(종래)
10 : 본체프레임 20 : 다리부
30 : 다이얼게이지 31 : 조절스크류
40 : 엔빌1: inner casing 2: guide pipe
3: Assembly groove 4: Outer diameter micrometer (conventional)
10: main frame 20: leg
30: dial gauge 31: adjusting screw
40: Anvil

Claims (5)

"+"형상으로 제작된 본체프레임(10)의 각 외측단에는 직각으로 꺽여진 형상을 이루는 4개의 다리부(20)가 구성되고;
상기 각 다리부(20)에는 배관의 외경 및 진원도 측정을 위한 다이얼게이지(30) 및 앤빌(40)이 선택적으로 구성되며;
상기 다이얼게이지(30)는 다리부(20)에 형성된 관통공에 삽입된 상태에서 위치 조절이 가능하도록 조절스크류(31)에 의해 지지되어지고;
상기 앤빌(40)의 단부에는 회전용 로울러(41)가 구비되며;
상기 로울러(41) 외표면에는 윤활성의 테프론수지층(42)이 코팅 형성된 것을 특징으로 하는 증기터빈 인입배관 외경 및 진원도 측정기.Each of the outer ends of the body frame 10 made in the shape of "+" is constituted of four legs 20 having a bent shape at right angles;
A dial gauge 30 and an anvil 40 for measuring the outer diameter and roundness of the pipe are selectively formed on each of the leg portions 20;
The dial gauge 30 is supported by the adjusting screw 31 so that the position of the dial gauge 30 can be adjusted in a state where the dial gauge 30 is inserted into the through hole formed in the leg portion 20;
At the end of the anvil 40, a rotary roller 41 is provided;
Wherein a lubricating Teflon resin layer (42) is coated on the outer surface of the roller (41). 삭제delete 삭제delete 삭제delete 삭제delete
KR2020130001378U 2013-02-22 2013-02-22 External diameter and out of roundness measurement device for pipe Expired - Lifetime KR200473024Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375613A (en) * 2019-07-03 2019-10-25 郑志峰 A kind of pvc pipe size detection equipment of cyclic annular splicing kenel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000006781U (en) * 1998-09-21 2000-04-25 이구택 Roundness inspection device of steel sleeve
JP3148990B2 (en) * 1998-07-17 2001-03-26 ブラウン アンド シャープ テサ ソシエテ アノニム Electronic micrometer
JP2002005606A (en) * 2000-06-20 2002-01-09 Ibs:Kk Method and device for measuring spherical object

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3148990B2 (en) * 1998-07-17 2001-03-26 ブラウン アンド シャープ テサ ソシエテ アノニム Electronic micrometer
KR20000006781U (en) * 1998-09-21 2000-04-25 이구택 Roundness inspection device of steel sleeve
JP2002005606A (en) * 2000-06-20 2002-01-09 Ibs:Kk Method and device for measuring spherical object

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375613A (en) * 2019-07-03 2019-10-25 郑志峰 A kind of pvc pipe size detection equipment of cyclic annular splicing kenel
CN110375613B (en) * 2019-07-03 2020-12-29 湖州泰益智能科技有限公司 PVC pipe size detection equipment of annular concatenation pattern

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