KR101508553B1 - Water leak detecting sensor - Google Patents

Water leak detecting sensor Download PDF

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KR101508553B1
KR101508553B1 KR20130162076A KR20130162076A KR101508553B1 KR 101508553 B1 KR101508553 B1 KR 101508553B1 KR 20130162076 A KR20130162076 A KR 20130162076A KR 20130162076 A KR20130162076 A KR 20130162076A KR 101508553 B1 KR101508553 B1 KR 101508553B1
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water
solution
film layer
coating layer
base film
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Korean (ko)
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유홍근
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(주)유민에쓰티
유홍근
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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
    • G01M3/04—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
    • 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
    • G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
    • 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
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • 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
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis

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  • Chemical Kinetics & Catalysis (AREA)
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Abstract

The present invention relates to a water leak detecting sensor, and an objective of the present invention is to provide a water leak detecting sensor capable of accurately sensing a water leak condition while lowering a water leak sensitivity by coating a water reactive coating layer on an upper portion of a conductive line, and allowing the coating layer to dissolve when a water leak occurs making leaked water enter a pair of conductive lines; thereby allowing an electric current to flow. To achieve the objective, the water leak detecting sensor comprises: a base film layer made from a film material; a pair of conductive lines laterally disposed longitudinally, and side-by-side on the base film layer; and a coating layer made from a water reactive material which dissolves in water and coated on a top surface of the base film layer to prevent the conductive lines from being exposed, wherein a first solution is created by mixing 40-60 wt% of methyl ethyl ketone (MEK) solvent and 40-60 wt% of alkyd resin; a second solution created by mixing 40-60 wt% of MEK solvent and 40-60 wt% of acryl capped alkyd resin; and the coating layer created by mixing 80-90 wt% of the first solution and 10-20 wt% of the second solution.

Description

누수 감지 센서{Water leak detecting sensor}Water leak detecting sensor

본 발명은 누수 감지 센서에 관한 것으로, 특히 물에 반응하여 누수를 감지하기 위한 누설 감지 센서에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a leak detection sensor, and more particularly, to a leak detection sensor for detecting leakage in response to water.

본 출원인은 이미 여러건의 등록 특허(10-0909242, 10-0827385 등)에서 테이프 형태로 되어 누수가 발생하기 쉬운 위치에 설치함으로써 누수 발생을 쉽게 감지할 수 있도록 하는 테이프 형태의 누수감지센서를 제안한 바 있다.The applicant of the present invention has already proposed a tape-like leak detection sensor that can easily detect the occurrence of leakage by providing a tape-like shape in a number of registered patents (10-0909242, 10-0827385, etc.) have.

도1 및 도2에 도시한 바와 같이 이러한 누수감지센서(100)는 하부부착층(120), 베이스필름층(110), 상부보호필름층(130)이 저면에서 상방으로 순차적으로 적층되어 이루어진다.As shown in FIGS. 1 and 2, the leakage sensor 100 includes a lower adhesive layer 120, a base film layer 110, and an upper protective film layer 130 sequentially stacked on the bottom surface.

하부접착층(120)은 누수가 발생되는 곳에 부착하기 위한 것으로, 접착 테이프 형태로 구성되고, 베이스필름층(110)은 도전라인(111,112)이 상부에 형성되기 위한 층으로서, 도전라인(111,112)의 패턴을 인쇄 방식에 형성하기 위해 PET, PE, PTFE, PVC 또는 기타 테프론 계열의 재질의 필름으로 형성된다.The base film layer 110 is a layer in which the conductive lines 111 and 112 are formed on the upper part and the upper part of the conductive lines 111 and 112 It is formed of a film made of PET, PE, PTFE, PVC or other Teflon series to form a pattern in a printing method.

그리고, 도전라인(111,112)은 베이스필름층(110)의 상부표면에서 서로 이격되어 길이방향으로 평행하게 스트립 형태로 배치되며, 도전성 잉크 또는 은(Silver) 화합물로 인쇄된다.The conductive lines 111 and 112 are arranged in strips parallel to each other in the longitudinal direction, spaced from each other on the upper surface of the base film layer 110, and printed with a conductive ink or silver compound.

상부보호필름층(130)은 베이스필름층(110)의 상부에 적층되어 도전라인(111,112)을 외부의 자극으로부터 보호하기 위한 층으로서, 베이스필름층(110)과 같이 PET, PE, PTFE, PVC 또는 기타 테프론 계열의 재질로 형성되며, 도전라인(111,112)에 해당하는 위치에 일정간격마다 센싱홀(131)이 관통되어 형성되도록 구성된다.The upper protective film layer 130 is a layer for protecting the conductive lines 111 and 112 from external stimuli by being laminated on the base film layer 110. The upper protective film layer 130 may be made of PET, Or other Teflon-based materials, and the sensing holes 131 are formed at predetermined intervals in positions corresponding to the conductive lines 111 and 112, respectively.

따라서, 누수가 발생하면, 누수가 발생된 위치의 센싱홀(131)을 통해 수분이 유입되어 두 도전라인(111,112)이 수분에 의해 통전되며, 원격의 제어기가 그 통전상태 즉 폐회로가 형성되는 상태를 파악하여 누수여부를 감지하고, 그에 따른 경보를 발생할 수 있게 된다.Therefore, when water leakage occurs, water is introduced through the sensing hole 131 at the position where the water leakage occurs, so that the two conductive lines 111 and 112 are energized by moisture, and the remote controller is in the energized state So that it is possible to detect the leakage and to generate an alarm accordingly.

그런데, 이러한 종래의 필름형 누수감지센서(100)는 습도가 매우 높거나 또는 결로가 발생하는 환경에서 물이 약간만 센싱홀(131)을 통해 유입되면, 곧바로 경보가 발생됨으로써 사실상 누수가 발생하지 않더라도 누수감지센서(100)가 설치된 현장에서 잦은 경보가 발생하게 된다.However, in the conventional film type leak sensor 100, when water flows into the sensing hole 131 through the sensing hole 131 in an environment where the humidity is very high or condensation occurs, an alarm is generated immediately, Frequent alarms are generated in the field where the leak sensor 100 is installed.

즉, 누수감지센서(100)의 민감도가 매우 높아 누수가 아닌 상황에서도 주위 환경에 의해 잦은 경보를 발생함으로써 작업을 중단시킨 다음 누수 여부를 확인하여야하므로 많은 인력 낭비는 물론 시간적으로나 경제적으로 이롭지 못하며, 이로인한 누수 감지의 신뢰성이 저하되는 문제점이 있다.
That is, since the sensitivity of the leakage sensor 100 is very high, it is necessary to stop the operation by stopping the operation by generating frequent alarms due to the surrounding environment even in a situation where the leakage is not present, Thereby deteriorating the reliability of leak detection.

본 발명은 종래의 이러한 문제점을 해결하고자, 물에 반응하는 코팅층을 도전라인의 상측에 코팅하여 누수가 발생하는 경우 코팅층이 용해되면서 누수된 물이 한 쌍의 도전라인으로 유입되도록 하여 통전시킴으로써 누수 민감도를 낮추면서도 누수 상태를 정확히 감지할 수 있도록 한 누수 감지 센서를 제공하는데 그 목적이 있다.
In order to solve the above-mentioned problems, the present invention has been made in order to solve such a problem, by coating a coating layer responsive to water on the upper side of a conductive line to dissolve the coating layer when water is leaked, The present invention provides a leak detection sensor that can accurately detect a leakage state while lowering the leakage.

상기의 목적을 달성하기 위한 본 발명의 누수 감지 센서는,According to an aspect of the present invention,

필름재질로 된 베이스필름층;A base film layer made of a film material;

상기 베이스필름층의 상부면에 길이방향으로 나란히 형성된 한 쌍의 도전라인;A pair of conductive lines formed on the upper surface of the base film layer in a lengthwise direction;

물에 반응하여 용해되는 물질에 의해 상기 도전라인이 외부로 노출되지 않도록 베이스필름층의 상부면에 도포되는 코팅층;으로 구성되며,And a coating layer applied to an upper surface of the base film layer so that the conductive line is not exposed to the outside by a substance dissolved in response to water,

상기 코팅층은 MEK(Methyl Ethyl Ketone) 용매 40~60 중량%와 알키드 수지 40~60 중량%를 혼합하여 제1용액을 생성하고, MEK(Methyl Ethyl Ketone) 용매 40~60 중량%와 acryl capped alkyd 수지 40~60 중량%를 혼합하여 제2용액을 생성한 다음 상기 제1용액 80~90 중량%와 제2용액 10~20 중량%을 혼합하여 형성된다.
The coating layer is formed by mixing 40 to 60% by weight of a Methyl (Methyl Ethyl Ketone) solvent and 40 to 60% by weight of an alkyd resin to produce a first solution, adding 40 to 60% by weight of a Methyl (Methyl Ethyl Ketone) 40 to 60% by weight of the first solution is mixed to produce a second solution, and then the first solution is mixed with 80 to 90% by weight and the second solution is mixed with 10 to 20% by weight.

이와같은 본 발명은 물에 용해되는 물질에 의해 도전라인 상부에 코팅층을 형성함으로써 결로 또는 미량의 물이 유입되는 경우에는 코팅층에 의해 도전라인으로 유입되는 것이 차단되기 때문에 센싱 감도를 둔화시킴으로써 오동작에 따른 잦은 경보발생을 방지하게 된다.The present invention forms a coating layer on a conductive line by a substance dissolved in water, thereby preventing the flow of condensation or a small amount of water into the conductive line due to the coating layer, thereby lowering the sensing sensitivity. Thereby preventing the occurrence of frequent alarms.

이로 인해, 오동작에 의한 잦은 경보 때문에 발생하는 작업 중단의 경우가 방지되고, 또한 경보발생에 따른 누설 여부 확인을 위한 인적, 물적, 경제적 비용이 크게 감소함과 아울러 누수 감지의 신뢰성이 향상되는 효과가 있다.
Therefore, the work stoppage due to the frequent alarm caused by the malfunction is prevented, and the human, material, and economic costs for confirming leakage according to the alarm occurrence are greatly reduced, and the reliability of the leak detection is improved. have.

도1은 공지의 누수감지장치의 분해 구조를 보인 도.
도2는 도1의 결합 단면도.
도3은 본 발명의 누수 감지 센서의 분해 구조도.
도4는 도3의 결합 단면도.1 is a view showing a disassembled structure of a known leak detection device;
2 is an assembled sectional view of Fig.
3 is an exploded view of the leak detection sensor of the present invention.
Fig. 4 is an assembled sectional view of Fig. 3; Fig.

본 발명의 첨부한 도면을 참조하여 상세히 설명한다.The present invention will be described in detail with reference to the accompanying drawings.

본 발명의 기본적인 구조는 도1 및 도2에서 이미 언급한 형태와 동일하므로, 도전라인(111,112)의 상측에서 베이스필름층(110)과 도전라인(111,112)을 덮도록 하는 코팅층(200)의 구성물질을 중심으로 설명한다.Since the basic structure of the present invention is the same as that already described in Figs. 1 and 2, the configuration of the coating layer 200 covering the base film layer 110 and the conductive lines 111 and 112 at the upper side of the conductive lines 111 and 112 Explain mainly the substance.

먼저, 누수를 감지하기 위하여 물에 용해되는 물질에 의해 도3 및 도4에서와 같이 베이스필름층(110)의 상부면에 코팅층(200)을 형성하게 되는데, 이를 위해 MEK(Methyl Ethyl Ketone) 용매 40~60 중량%와 알키드 수지 40~60 중량%를 혼합하여 제1용액을 생성한다.3 and 4, the coating layer 200 is formed on the upper surface of the base film layer 110 by using a substance soluble in water. For this purpose, a methyl ethyl ketone (MEK) 40 to 60% by weight of an alkyd resin and 40 to 60% by weight of an alkyd resin are mixed to produce a first solution.

또한 MEK(Methyl Ethyl Ketone) 용매 40~60 중량%와 acryl capped alkyd 수지 40~60 중량%를 혼합하여 제2용액을 생성한다.Also, a second solution is prepared by mixing 40 to 60% by weight of a methyl ethyl ketone (MEK) solvent and 40 to 60% by weight of an acryl capped alkyd resin.

이렇게 생성된 제1용액 80~90 중량%와 제2용액 10~20 중량%을 혼합하여 교반함으로써 코팅액을 형성하고, 이러한 코팅액을 도전라인(111,112)을 덮도록 베이스필름층(110)의 상부면에서 6~10㎛의 두께를 가지고 도포함으로써 코팅층(200)을 형성하는 것이다.The coating solution is prepared by mixing 80 to 90% by weight of the first solution thus produced with 10 to 20% by weight of the second solution and stirring to form a coating solution. The coating solution is applied to the upper surface of the base film layer 110 To form a coating layer 200 having a thickness of 6 to 10 mu m.

MEK 용매는 알키드 수지를 분산하는 역할을 하고, 알키드 수지는 물에 반응하여 녹는 성질을 가지고 있다.The MEK solvent serves to disperse the alkyd resin, and the alkyd resin melts in response to the water.

acryl capped alkyd 수지는 알키드 수지의 입자 표면에 아크릴이 코팅되어 있으므로, 물이 투과하여 알키드 수지가 녹는 시간이 지연됨으로써 결국 물과의 반응 시간을 지연시키게 된다.Acrylic capped alkyd resins are coated with acrylic on the surface of the alkyd resin, so that the time for the water to permeate and the melting of the alkyd resin is delayed, thereby delaying the reaction time with water.

따라서, 알키드 수지와 acryl capped alkyd 수지의 양을 적절히 조절함으로써 전체적으로 물에 반응하는 시간을 조절할 수 있을 것이다.Thus, by appropriately adjusting the amount of alkyd resin and acryl capped alkyd resin, the overall reaction time to water will be controlled.

이와같이 구성되는 본 발명의 누수 감지 센서를 누수 발생이 예상되는 현장에 설치하면, 센싱홀(131)을 통해 습도나 결로 등에 의한 미량의 물이 유입되는 경우에 코팅층(200)은 용해되지 않아 반응하지 않으며, 누수가 발생되어 실질적으로 물이 유입되는 경우에만 코팅층(200)이 물에 용해되어 도전라인(111,112)까지 물이 유입됨으로써 두 도전라인(111,112)이 서로 통전되어 저항값의 변화가 발생하게 된다.When the water leakage sensor of the present invention configured as described above is installed at a site where leakage is expected, the coating layer 200 is not dissolved and reacted when a small amount of water is introduced through the sensing hole 131 due to humidity, condensation, or the like Only when water is leaked and water is substantially introduced, the coating layer 200 is dissolved in water and water flows into the conductive lines 111 and 112 so that the two conductive lines 111 and 112 are electrically connected to each other, do.

이러한 도전라인(111,112)에서의 저항값 변화를 원격의 제어기가 감지하여 경보를 발생하도록 하는 것이다.The remote controller senses a change in resistance value in the conductive lines 111 and 112 and generates an alarm.

코팅층(200)이 코팅된 베이스필름층(110)의 상부에는 상부보호필름층(130)이 라미네이션에 의해 적층되어 코팅층(200)을 외부의 자극으로부터 보호하게 되는데, 베이스필름층(110)과 같이 PET, PE, PC, PTFE, PVC 또는 기타 테프론 계열의 재질로 형성되며, 도전라인(111,112)에 해당하는 위치에 일정간격마다 센싱홀(131)이 관통되어 형성되도록 구성된다.The upper protective film layer 130 is laminated on the upper part of the base film layer 110 coated with the coating layer 200 to protect the coating layer 200 from external stimuli. A sensing hole 131 is formed at a predetermined interval in a position corresponding to the conductive lines 111 and 112. The sensing hole 131 is formed at a predetermined interval.

특히 즉, 외부환경에 영향을 많이 받는 옥외에는 코팅층(200)을 보호하기 위하여 상부보호필름층(130)이 적층되는 것이 좋으며, 옥내에서는 여건에 따라 상부보호필름층(130)이 선택적으로 적층되거나 또는 적층되지 않을 수 있다.
In particular, the upper protective film layer 130 may be laminated in order to protect the coating layer 200 from being exposed to the outside environment, and the upper protective film layer 130 may be selectively laminated Or may not be laminated.

110 : 베이스필름층 111,112 : 도전라인
120 : 하부부착층 130 : 상부보호필름층
131 : 센싱홀 200 : 코팅층110: base film layer 111, 112: conductive line
120: lower adhesion layer 130: upper protection film layer
131: sensing hole 200: coating layer

Claims (3)

필름재질로 된 베이스필름층;
상기 베이스필름층의 상부면에 길이방향으로 나란히 형성된 한 쌍의 도전라인;
물에 반응하여 용해되는 물질에 의해 상기 도전라인이 외부로 노출되지 않도록 베이스필름층의 상부면에 도포되는 코팅층;으로 구성되며,
상기 코팅층은 MEK(Methyl Ethyl Ketone) 용매 40~60 중량%와 알키드 수지 40~60 중량%를 혼합하여 제1용액을 생성하고, MEK(Methyl Ethyl Ketone) 용매 40~60 중량%와 acryl capped alkyd 수지 40~60 중량%를 혼합하여 제2용액을 생성한 다음 상기 제1용액 80~90 중량%와 제2용액 10~20 중량%을 혼합하여 형성된 것을 특징으로 하는 누수 감지 센서.
A base film layer made of a film material;
A pair of conductive lines formed on the upper surface of the base film layer in a lengthwise direction;
And a coating layer applied to an upper surface of the base film layer so that the conductive line is not exposed to the outside by a substance dissolved in response to water,
The coating layer is formed by mixing 40 to 60% by weight of a Methyl (Methyl Ethyl Ketone) solvent and 40 to 60% by weight of an alkyd resin to produce a first solution, adding 40 to 60% by weight of a Methyl (Methyl Ethyl Ketone) 40 to 60% by weight of the first solution is mixed to produce a second solution, and then 80 to 90% by weight of the first solution and 10 to 20% by weight of the second solution are mixed.
제1항에 있어서, 상기 코팅층의 상부면으로는 필름재질로 된 상부보호필름층이 적층되며, 상기 상부보호필름층에는 베이스필름층의 도전라인을 상부로 노출시키기 위한 센싱홀들이 일정간격으로 형성된 것을 특징으로 하는 알칼리 누수 감지 센서.The method according to claim 1, wherein an upper protective film layer made of a film material is laminated on the upper surface of the coating layer, and sensing holes are formed in the upper protective film layer to expose the conductive lines of the base film layer And a sensor for detecting an amount of leakage. 삭제delete
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Cited By (3)

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Publication number Priority date Publication date Assignee Title
KR101830026B1 (en) * 2017-01-13 2018-02-19 이재희 Flexible stick type leak detection sensor
KR101830005B1 (en) * 2016-10-27 2018-02-19 플로우닉스 주식회사 Leak detection sensor
KR102115235B1 (en) * 2019-09-05 2020-05-26 아리울씨앤디 주식회사 Waterproof and root isolation layer water leak detection system and detectting method thereof

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JP2004093246A (en) * 2002-08-30 2004-03-25 Origin Electric Co Ltd Acid liquid leakage sensor
KR100909242B1 (en) * 2008-04-24 2009-07-27 (주)유민에쓰티 Leak sensor apparatus for sensing moisture

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JP2004093246A (en) * 2002-08-30 2004-03-25 Origin Electric Co Ltd Acid liquid leakage sensor
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101830005B1 (en) * 2016-10-27 2018-02-19 플로우닉스 주식회사 Leak detection sensor
KR101830026B1 (en) * 2017-01-13 2018-02-19 이재희 Flexible stick type leak detection sensor
KR102115235B1 (en) * 2019-09-05 2020-05-26 아리울씨앤디 주식회사 Waterproof and root isolation layer water leak detection system and detectting method thereof

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