KR101119825B1 - Apparatus for sensing the leak a pipe connection part using capacitive sensor - Google Patents

Apparatus for sensing the leak a pipe connection part using capacitive sensor Download PDF

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KR101119825B1
KR101119825B1 KR1020090115584A KR20090115584A KR101119825B1 KR 101119825 B1 KR101119825 B1 KR 101119825B1 KR 1020090115584 A KR1020090115584 A KR 1020090115584A KR 20090115584 A KR20090115584 A KR 20090115584A KR 101119825 B1 KR101119825 B1 KR 101119825B1
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sensor
capacitive sensor
fluid pipe
sensor mounting
leak
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KR20110059001A (en
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유홍근
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유홍근
(주)유민에쓰티
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance

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  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
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  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

본 발명은 정전용량센서를 유체관의 연결부 위치에 장착하여 유체관으로부터 리크가 발생하여 수위가 생성된 경우 그 수위를 감지하여 리크의 발생여부를 확인하도록 한 정전용량센서를 이용한 유체관 연결부의 리크감지장치를 제공하는데 그 목적이 있다.According to the present invention, a leak is generated from a fluid pipe by installing a capacitive sensor at a connection part of a fluid pipe. The purpose is to provide a sensing device.

상기한 바와 같은 목적을 달성하기 위한 본 발명은,The present invention for achieving the above object,

유체관 연결부위를 내측으로 수용하도록 하는 클램프 형태의 보호커버가 구비되고, 상기 보호커버의 중간부위에는 보호커버의 둘레를 따라서 외측으로 돌출된 환형돌출부가 일체로 형성되며, 상기 환형돌출부의 내측으로는 보호커버의 내측과 서로 연통하도록 환형의 센서장착공간부가 형성됨과 아울러, 상기 센서장착공간부의 상단에는 정전용량센서가 장착되어 구성된다.A clamp-type protection cover is provided to accommodate the fluid pipe connection portion inwardly, and an intermediate portion of the protection cover is integrally formed with an annular protrusion protruding outward along the circumference of the protection cover. An annular sensor mounting space is formed to communicate with the inner side of the protective cover, and a capacitive sensor is mounted on the top of the sensor mounting space.

Description

정전용량센서를 이용한 유체관 연결부의 리크감지장치{Apparatus for sensing the leak a pipe connection part using capacitive sensor}Apparatus for sensing the leak a pipe connection part using capacitive sensor}

본 발명은 리크감지장치에 관한 것으로, 특히 유체관의 연결부에서 발생하는 리크에 의한 수위를 정전용량센서를 이용하여 감지할 수 있도록 한 정전용량센서를 이용한 유체관 연결부의 리크감지센서에 관한 것이다.The present invention relates to a leak detection device, and more particularly, to a leak detection sensor of a fluid pipe connection part using a capacitive sensor that can detect a water level due to a leak generated at a connection part of a fluid pipe using a capacitive sensor.

일반적으로, 상수관, 난방관 등의 유체관은 내부에 흐르는 유체를 원격지의 장소로 이동시키게 되는데, 보통 수 백 미터에서 수 십 킬로미터의 길이를 가지게 된다.In general, fluid pipes such as water pipes and heating pipes move internal fluids to remote locations, which usually range from a few hundred meters to tens of kilometers in length.

이러한 유체관은 하나의 관체로만 설치될 수 없어서 일정길이의 관체를 여러개 연결하여 연장하게 되는데, 통상적으로 외부에 부식을 방지하기 위한 코팅층이 형성된 강관을 이용하게 된다.These fluid pipes can not be installed as only one pipe body to extend by connecting a plurality of pipes of a predetermined length, usually using a steel pipe formed with a coating layer to prevent corrosion.

따라서 다수개의 강관을 용접이나 기타 연결방법들에 의하여 연결함으로써 일체화시키게 되는데, 이때, 강관 내부에 흐르는 유체의 압력과 부식 등에 의해 연 결부위에서 가장 많은 리크가 발생하는 문제점이 있게 된다.Therefore, it is integrated by connecting a plurality of steel pipes by welding or other connection methods, at this time, there is a problem that the most leakage occurs at the connection site due to the pressure and corrosion of the fluid flowing in the steel pipes.

그러므로, 리크에 의해 유체의 손실을 물론, 유해성 유체인 경우 토양오염 등의 심각한 문제까지 발생한다.Therefore, not only the loss of the fluid due to the leak, but also serious problems such as soil pollution in the case of hazardous fluids.

본 발명의 목적은 상기한 바와 같은 종래의 문제점을 해결하기 위하여, 정전용량센서를 유체관의 연결부 위치에 장착하여 유체관으로부터 리크가 발생하여 수위가 생성된 경우 그 수위를 감지하여 리크의 발생여부를 확인하도록 한 정전용량센서를 이용한 유체관 연결부의 리크감지장치를 제공하는데 그 목적이 있다.An object of the present invention is to solve the conventional problems as described above, by mounting the capacitive sensor in the position of the connection portion of the fluid pipe leak occurs from the fluid pipe when the water level is generated by detecting the water level whether the leak occurs The object of the present invention is to provide a leak detection device of a fluid pipe connection using a capacitive sensor.

상기한 바와 같은 목적을 달성하기 위한 본 발명은,The present invention for achieving the above object,

유체관 연결부위를 내측으로 수용하도록 하는 클램프 형태의 보호커버가 구비되고, 상기 보호커버의 중간부위에는 보호커버의 둘레를 따라서 외측으로 돌출된 환형돌출부가 일체로 형성되며, 상기 환형돌출부의 내측으로는 보호커버의 내측과 서로 연통하도록 환형의 센서장착공간부가 형성됨과 아울러, 상기 센서장착공간부의 상단에는 정전용량센서가 장착되어 구성된 것을 특징으로 한다.A clamp-type protection cover is provided to accommodate the fluid pipe connection portion inwardly, and an intermediate portion of the protection cover is integrally formed with an annular protrusion protruding outward along the circumference of the protection cover. An annular sensor mounting space is formed to communicate with the inner side of the protective cover, and the capacitive sensor is mounted on the top of the sensor mounting space.

상기 설명한 바와 같이, 본 발명에 따른 리크감지장치는 유체관의 연결부위에 장착되어 누수되는 리크에 의해 생성되는 수위에 따라 정전용량값의 변화를 발생함으로써 경보신호를 발생할 수 있어 아주 단순한 구조에 의해 리크감지여부를 확인할 수 있다.As described above, the leak detection device according to the present invention can generate an alarm signal by generating a change in capacitance value according to the water level generated by the leaking leak mounted on the connection portion of the fluid pipe, thereby providing a very simple structure. Leak detection can be checked.

이하 본 발명에 따른 정전용량센서를 이용한 유체관 연결부의 리크감지장치를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, a leak detection device of a fluid pipe connection part using a capacitive sensor according to the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명의 구성을 나타낸 단면도로서, 내부에 물 등의 유체가 흐르는 2개 금속성 유체관(100,200)의 단부가 각각 맞닿아 용접이나 기타 연결방법들에 의하여 연결부위(300)를 형성함으로써 연결된다.Figure 1 is a cross-sectional view showing the configuration of the present invention, the ends of the two metallic fluid pipes (100, 200) through which a fluid such as water flows in contact with each other to form a connection portion 300 by welding or other connection methods Connected.

이때 연결부위(300)는 2개 유체관(100,200)의 맞닿는 부위에서 외측 둘레를 따라 모두 행해져 내부의 유체가 외부로 유출되지 않도록 한다.At this time, the connection portion 300 is all done along the outer periphery at the contact portion of the two fluid pipes (100,200) to prevent the fluid inside the outflow.

한편, 유체관(100,200)의 연결부위(300) 외측으로는 외부의 환경에 노출되지 않도록 하고, 습기 및 이물질 등이 유입되지 않도록 보호커버(400)가 씌워지는데, 이러한 보호커버(400)는 도2에서 도시한 바와 같이 클램프 형태로 형성되고, 그 중간부위에는 둘레를 따라서 환형 돌출부(410)가 형성된다.On the other hand, the outside of the connection portion 300 of the fluid pipe (100,200) is not exposed to the external environment, and the protective cover 400 is covered so that moisture and foreign matters, etc., the protective cover 400 is shown in FIG. As shown in Figure 2 is formed in the form of a clamp, the middle portion is formed with an annular projection 410 along the circumference.

이러한 환형 돌출부(410)의 내측도 내측둘레를 따라서 환형으로 파여서 센서장착공간부(420)가 형성되며, 이러한 센서장착공간부(420)는 보호커버(400)의 내측과 서로 연통된다.The inner side of the annular protrusion 410 is also dug out along the inner circumference to form a sensor mounting space 420, the sensor mounting space 420 is in communication with the inside of the protective cover 400.

따라서, 보호커버(400)의 돌출부(410)가 연결부위(300)에 위치하도록 하고, 양측이 각각 유체관(100,200)의 단부를 내측으로 수용하도록 장착됨으로써 연결부위(300)를 보호하게 되는 것이다.Therefore, the protrusion 410 of the protective cover 400 is located at the connection portion 300, and both sides are mounted to receive the ends of the fluid pipes 100 and 200, respectively, to protect the connection portion 300. .

유체관(100,200)의 연결 후 도2에서와 같이 클램프 형태로 상부커버와 하부커버로 분리된 보호커버(400)를 연결부위(300)의 외측 장착하여 보호커버(400)의 외측에 형성된 볼트체결편(401,402)에 의해 고정시키게 된다.After the connection of the fluid pipe (100,200) bolts formed on the outside of the protective cover 400 by mounting the protective cover 400 separated into the upper cover and the lower cover in the form of a clamp as shown in FIG. It is fixed by pieces 401 and 402.

이때, 보호커버(400)와 유체관(100,200)의 외측면이 맞닿은 부위에는 외부로부터 이물질이 보호커버(400)의 내부로 유입되거나 또는 보호커버(400)의 내부에서 리크된 유체가 외부로 유출되는 것을 방지하기 위하여 유체관(100,200)의 둘레를 따라 금속링 형태의 기밀부재(415,416)가 용접 등에 의하여 장착되어 있다.At this time, foreign matter flows into the protection cover 400 from the outside or leaks the fluid leaked from the inside of the protection cover 400 to the part where the outer surfaces of the protective cover 400 and the fluid pipes 100 and 200 contact. In order to prevent them from being formed, the airtight members 415 and 416 in the form of metal rings are mounted along the circumference of the fluid pipes 100 and 200 by welding or the like.

상기 연결부위(300)에서는 부식 등의 이유에 의해 유체가 누설되는 리크가 발생될 수 있는데, 이러한 리크를 감지하기 위해 센서장착공간부(420)의 상단에는 정전용량센서(500)가 상하로 세워지도록 장착된다.In the connection part 300, a leak may occur in which a fluid leaks due to corrosion or the like. In order to detect such a leak, a capacitive sensor 500 stands up and down on an upper end of the sensor mounting space 420. Mounted to lose weight.

이러한 정정용량센서(500)의 장착을 위해 센서장착공간부(420)의 상단은 외부와 관통된 센서장착홈(413)이 형성되고, 이 센서장착홈(413)에 정전용량센서(500)에 삽입되어 장착되는데, 이때 기밀을 위하여 센서장착홈(413)의 내측 둘레로는 패킹(430)이 장착된다.In order to mount the capacitive sensor 500, an upper end of the sensor mounting space 420 is formed with a sensor mounting groove 413 penetrated to the outside, and the capacitive sensor 500 is disposed in the sensor mounting groove 413. It is inserted and mounted, in which case the packing 430 is mounted around the inner circumference of the sensor mounting groove 413 for airtightness.

따라서, 패킹(430)을 매개로 하여 정전용량센서(500)가 장착되어 센서장착공간부(420)의 내외부가 기밀되는데, 이때 패킹(430)과 정전용량센서(500)는 면접촉되어 있으므로 정전용량센서(500)를 상하로 밀어넣거나 빼서 장착위치를 조절할 수 있다.Therefore, the capacitive sensor 500 is mounted through the packing 430 so that the inside and the outside of the sensor mounting space 420 are hermetically sealed, and the packing 430 and the capacitive sensor 500 are in surface contact and thus, The capacitive sensor 500 can be pushed up or down to adjust the mounting position.

또한, 센서장착홀(413)의 외측 둘레로는 하부로 돌출된 환형의 결합부(411)가 형성되고, 그 외측으로는 둘레를 따라서 나사부(412)가 형성되어 있다.In addition, an outer circumference of the sensor mounting hole 413 is formed with an annular engaging portion 411 protruding downward, and a threaded portion 412 is formed along the circumference thereof.

그리고, 센서장착홀(413)을 통해 외부로 노출된 정전용량센서(500)의 부위를 보호하기 위하여 캡 형태의 센서보호커버(600)가 장착되는데, 상기 센서보호커버(600)의 내측 하단에는 나사부(610)가 형성되어 상기 결합부(411)의 나사부(412)와 결합됨으로써 습기나 이물질 등이 유입되는 것을 방지하게 된다.In addition, a cap-type sensor protective cover 600 is mounted to protect a portion of the capacitive sensor 500 exposed to the outside through the sensor mounting hole 413, and the inner lower end of the sensor protective cover 600 is provided. The thread 610 is formed to be coupled with the threaded portion 412 of the coupling portion 411 to prevent the inflow of moisture or foreign matter.

도3은 도1의 A-A'부분의 단면도로서, 용접부위(300)에서 리크가 발생한 경우, 센서장착공간부(420)의 하측부위로 모아져서 수위를 형성하게 되며, 수위가 높아짐에 따라 정전용량센서(500)의 하단에 유체가 접촉함으로써 리크 발생여부를 확인하게 되고, 또한 수위가 더 높아지는 경우 리크가 접촉하는 면적이 변화되어 정전용량값이 변화되므로, 이 정전용량값을 별도의 제어기에서 확인하여 수위를 감지함으로써 경보신호를 발생할 수 있을 것이다.3 is a cross-sectional view taken along line AA ′ of FIG. 1, in the case where a leak occurs in the welded part 300, the water level is collected and formed at the lower part of the sensor mounting space 420 to form a water level. When the fluid is in contact with the lower end of the capacitive sensor 500, it is confirmed whether or not the leak occurs, and if the water level is higher, the area of contact with the leak is changed, so that the capacitance value is changed. The alarm signal can be generated by detecting the water level.

또한, 정전용량센서(500)의 높낮이를 조절하는 경우 그 조절된 높이에 의해 수위감지범위를 조절할 수 있게 된다.In addition, when adjusting the height of the capacitance sensor 500 it is possible to adjust the water level detection range by the adjusted height.

도1은 본 발명의 구성을 보인 단면도.1 is a cross-sectional view showing the configuration of the present invention.

도2는 보호커버의 외관도.2 is an external view of a protective cover.

도3은 도1의 A-A'부분의 단면도.3 is a cross-sectional view taken along the line AA 'of FIG. 1;

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

100,200 : 유체관 300 : 연결부위100,200: Fluid pipe 300: Connection part

400 : 보호커버 410 : 환형돌출부400: protective cover 410: annular projection

420 : 센서장착공간부 430 : 정전용량센서420: sensor mounting space 430: capacitive sensor

411 : 결합부 600 : 센서보호커버411: coupling part 600: sensor protective cover

Claims (3)

유체관 연결부위를 내측으로 수용하도록 하는 클램프 형태의 보호커버가 구비되고, 상기 보호커버의 중간부위에는 보호커버의 둘레를 따라서 외측으로 돌출된 환형돌출부가 일체로 형성되며, 상기 환형돌출부의 내측으로는 보호커버의 내측과 서로 연통하도록 환형의 센서장착공간부가 형성됨과 아울러, 상기 센서장착공간부의 상단에는 정전용량센서가 장착되어 구성된 것을 특징으로 하는 정전용량센서를 이용한 유체관 연결부의 리크감지장치.A clamp-type protection cover is provided to accommodate the fluid pipe connection portion inwardly, and an intermediate portion of the protection cover is integrally formed with an annular protrusion protruding outward along the circumference of the protection cover. The leak detection device of the fluid pipe connection using a capacitive sensor, characterized in that the annular sensor mounting space is formed so as to communicate with the inside of the protective cover, the capacitive sensor is mounted on the top of the sensor mounting space. 제1항에 있어서, 상기 센서장착공간부의 상단은 관통된 센서장착홀이 형성되고, 상기 센서장착홀에는 정전용량센서가 패킹을 매개로 하여 장착된 것을 특징으로 하는 정전용량센서를 이용한 유체관 연결부의 리크감지장치.According to claim 1, wherein the upper end of the sensor mounting space portion is formed through the sensor mounting hole, the sensor mounting hole is connected to the fluid pipe using a capacitive sensor, characterized in that the capacitive sensor is mounted via a packing medium. Leak detection device. 제2항에 있어서, 상기 센서장착홀의 외측 둘레로는 환형의 결합부가 돌출형성되며, 결합부의 외측 둘레를 따라 나사부가 형성되고, 내측 하단에 나사부가 형성된 캡 형태의 센서보호커버가 상기 결합부에 결합되어 정전용량센서의 노출된 부위를 수용하도록 구성된 것을 특징으로 하는 정전용량센서를 이용한 유체관 연결부의 리크감지장치.According to claim 2, wherein the outer periphery of the sensor mounting hole is formed in the annular engaging portion protruding, the threaded portion is formed along the outer periphery of the engaging portion, the cap protective sensor cover formed on the inner lower end of the cap is formed in the engaging portion Leak detection device of the fluid pipe connection using a capacitive sensor, characterized in that coupled to accommodate the exposed portion of the capacitive sensor.
KR1020090115584A 2009-11-27 2009-11-27 Apparatus for sensing the leak a pipe connection part using capacitive sensor KR101119825B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101656426B1 (en) 2015-05-18 2016-09-12 (주)지에스티산업 Pipe connection device having a function of detecting for gas leakage and sensing for change of pressure

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KR200412983Y1 (en) 2005-12-13 2006-04-05 주식회사 위스코 Device for detecting water leakage of joint parts of pipe checking water leakage
KR20060125151A (en) * 2005-06-02 2006-12-06 서울시립대학교 산학협력단 System for detecting water leakage of saddle ferrule
KR20090068191A (en) * 2009-03-10 2009-06-25 윤상조 Sensing device for pipe connection portion

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KR20060125151A (en) * 2005-06-02 2006-12-06 서울시립대학교 산학협력단 System for detecting water leakage of saddle ferrule
KR200412983Y1 (en) 2005-12-13 2006-04-05 주식회사 위스코 Device for detecting water leakage of joint parts of pipe checking water leakage
KR20090068191A (en) * 2009-03-10 2009-06-25 윤상조 Sensing device for pipe connection portion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101656426B1 (en) 2015-05-18 2016-09-12 (주)지에스티산업 Pipe connection device having a function of detecting for gas leakage and sensing for change of pressure

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