KR102086975B1 - Chemical leak detection device using cable type sensor - Google Patents

Chemical leak detection device using cable type sensor Download PDF

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KR102086975B1
KR102086975B1 KR1020190154503A KR20190154503A KR102086975B1 KR 102086975 B1 KR102086975 B1 KR 102086975B1 KR 1020190154503 A KR1020190154503 A KR 1020190154503A KR 20190154503 A KR20190154503 A KR 20190154503A KR 102086975 B1 KR102086975 B1 KR 102086975B1
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sensor
cable
power
voltage
leak
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Korean (ko)
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김광열
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김광열
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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
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/186—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
    • 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
    • G01M3/007—Leak detector calibration, standard leaks
    • 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
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/183—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for pipe joints or seals

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  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The present invention relates to a chemical leak detection device using a cable-type sensor and, more specifically, to a chemical leak detection device using a cable-type sensor which applies a four-wire type sensor cable to identify a leak state of liquid and measure the presence of a fault at all times to improve the accuracy of leak detection and conveniently monitor device faults. The chemical leak detection device using a cable-type sensor comprises: a sensor cable including a first sensor connected to a first power line by a first detection line and a second sensor connected to a second power line by a second detection line; a power supply unit to supply power at a prescribed voltage; a variable voltage unit connected to the power supply unit to vary the voltage of supplied power to supply power to the sensor cable in accordance with a type of leak to detect; a microcomputer unit having a standard resistor connected to the sensor cable to apply a constant voltage to the first sensor and the second sensor and measure the voltage of both ends of the standard resistor to determine whether a leak is present; and a disconnection detection resistor installed between the first sensor and the second sensor of the sensor cable to generate a minute voltage on both ends of the standard resistor at all times. The microcomputer unit measures the minute voltage generated through the disconnection detection resistor to measure the occurrence of a fault at all times.

Description

케이블타입 센서를 이용한 화학물질 누액감지장치{Chemical leak detection device using cable type sensor}Chemical leak detection device using cable type sensor

본 발명은 케이블타입 센서를 이용한 화학물질 누액감지장치에 관한 것으로서, 더욱 구체적으로는 4선 타입의 센서케이블을 적용하여, 누액의 Leak 상태를 파악하면서, Fault 여부를 상시 측정할 수 있도록 구성하여, 누액감지의 정확도를 향상시키고 장치의 고장모니터링이 간편한 케이블타입 센서를 이용한 화학물질 누액감지장치에 관한 기술이다.The present invention relates to a chemical leakage sensor using a cable type sensor, and more specifically, by applying a four-wire type sensor cable, and configured to be able to always measure the fault, while grasping the leak state of the leakage, It is a technology of chemical leakage detection device using cable type sensor that improves the accuracy of leakage detection and makes it easy to monitor device failure.

일반적으로 누액감지장치는 액상으로 이루어진 화학물질의 유출여부를 감지하는 장치로서, 저장탱크 또는 화학물질이 흐르는 배관이 노화되거나, 외부충격, 부식, 온도변화에 따라 균열이 발생하여 내부의 액상유체가 외부로 유출되는 것을 신속하게 감지하여 적절한 대응이 이루어지도록 하는 것이다.In general, the leak detection device is a device for detecting the leakage of chemicals made of liquid phase, the storage tank or the pipe through which the chemical flows is aged, or cracks occur due to external impact, corrosion, temperature changes, etc. It quickly detects leakage and ensures proper response.

상기 누액감지장치는 한 쌍의 전극센서를 통해 접촉된 화학물질이 전기신호값을 변화시켜 이를 감지하여 누액여부를 판단하고 있다.The leak detection device detects leakage by detecting a chemical substance contacted through a pair of electrode sensors by changing an electric signal value.

그러나 종래의 누액감지장치는 전극센서를 통해 누액의 Leak 상태를 파악할 수 있지만, 전극센서 자체의 단선(Fault)여부를 판단하기 어렵기 때문에, 고장상태를 방치하여 누액유출에 따른 즉각적인 대응이 어려운 문제점이 있었다.However, the conventional leak detection device is able to determine the leak state of the leak through the electrode sensor, but it is difficult to determine whether the fault of the electrode sensor itself, it is difficult to immediately respond to the leakage of leakage by leaving the fault state There was this.

또한 전극센서의 구성자체도 일(一) 자 형태로 배치되는 구조여서, 외부의 노이즈가 그대로 전달되어, 전극센서의 측정 정확도가 떨어지는 문제점이 있었다.In addition, the structure of the electrode sensor itself is also arranged in a one-shaped structure, the external noise is transmitted as it is, there was a problem that the measurement accuracy of the electrode sensor is lowered.

관련 선행기술로서, 등록특허 제10-1938058호(전기분해를 이용한 리크센서장치)에는 도전성 금속인 제1전극과 제2전극이 일정한 간격으로 대향 배치되는 리크센서와, 상기 리크센서의 전극으로 전압 및 전류를 가변하여 인가하는 전압/전류 증폭부와, 상기 리크센서의 전극 사이에 흐르는 전류값을 검출하는 전류감지부와, 상기 리크센서의 제1전극 및 제2전극 사이에 인가되는 전압을 조절하여 출력하되, 설정된 전해액들의 기준분해전압 이하로 시작하여 순차적으로 높여 단계별로 출력하고, 이에 대응하여 상기 리크센서의 제1전극 및 제2전극 사이에 흐르는 전류를 검출하여 누액 여부 및 누액의 종류를 판단하는 제어부를 포함하는 기술이 개시되어 있다.As a related prior art, Patent No. 10-1938058 (Leak sensor device using electrolysis) includes a leak sensor in which a first electrode and a second electrode, which are conductive metals, are disposed to face each other at regular intervals, and a voltage as an electrode of the leak sensor. And a voltage / current amplifier for varying the current, a current sensing unit for detecting a current value flowing between the electrodes of the leak sensor, and a voltage applied between the first electrode and the second electrode of the leak sensor. And output, but gradually increasing below the reference decomposition voltage of the set electrolytes and outputting step by step, and correspondingly detects the current flowing between the first electrode and the second electrode of the leak sensor to determine whether or not the leakage Disclosed is a technique including a control unit for determining.

상기 선행기술은 리크센서의 단선 여부를 파악할 수 있는 구성이 제시되어 있지 않아, 단선 파악이 어려울 뿐더러, 제2전극이 판상구조로 되어 있어서, 노이즈 간섭문제와 누액검출 방향이 제한적이어서 신속한 누액감지가 어려운 문제점이 있다.Since the prior art does not suggest a configuration that can detect the disconnection of the leak sensor, it is difficult to identify the disconnection, and the second electrode has a plate-like structure, so that the noise leakage problem and the direction of leakage detection are limited, so that rapid leakage detection is possible. There is a difficult problem.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 4선 타입의 센서케이블을 이용하여, 화학물질의 누액여부를 신속하게 파악할 수 있도록 구성하며, 누액감지가 이루어지는 센서의 단선여부를 실시간으로 감지하여, 누액감지장치가 항시 정상작동 될 수 있도록 한 케이블타입 센서를 이용한 화학물질 누액감지장치를 제공함에 목적이 있다.The present invention has been made to solve the above problems, by using a four-wire type sensor cable, configured to quickly determine whether the leakage of chemicals, and in real time whether the sensor disconnection detection It is an object of the present invention to provide a chemical leakage detection device using a cable type sensor to detect and enable the leakage detection device to operate normally at all times.

본 발명은 제1전원선과 제1감지선으로 연결되는 제1센서와, 제2전원선과 제2감지선으로 연결되는 제2센서;로 구성되는 센서케이블과, 일정전압으로 전원을 공급하는 전원공급부와, 상기 전원공급부와 연결되어 공급전원의 전압을 가변하여 감지하고자 하는 누액의 종류에 맞게 센서케이블로 전원을 공급하는 가변전압부와, 상기 센서케이블과 표준저항이 연결되어 제1센서와 제2센서에 정전압을 인가하고, 상기 표준저항의 양단전압을 측정하여 Leak 여부를 판단하는 마이컴부와, 상시 센서케이블의 제1센서와 제2센서 사이에 설치되어 표준저항의 양단에 항시 미세전압을 발생시키는 단선감지저항;으로 이루어지고, 상기 마이컴부에서는 단선감지저항을 통해 발생되는 미세전압을 측정하여 Fault 여부를 상시 측정하는 것을 특징으로 한다.The present invention provides a sensor cable comprising a first sensor connected with a first power line and a first sensing line, a second sensor connected with a second power line and a second sensing line, and a power supply unit for supplying power at a constant voltage. And a variable voltage unit connected to the power supply unit and supplying power to a sensor cable according to the type of leakage to be detected by varying the voltage of the supply power, and connecting the sensor cable and the standard resistor to the first sensor and the second resistor. Applying a constant voltage to the sensor, and measuring the voltage across the standard resistor to determine whether the leakage and the microcomputer is always installed between the first sensor and the second sensor of the sensor cable to generate a minute voltage at both ends of the standard resistor It consists of a disconnection detection resistor, and the microcomputer is characterized in that the micro-voltage generated through the disconnection detection resistance to always measure whether or not the fault.

또한 상기 마이컴부에서는 측정된 양단전압을 디지털로 변환한 후 저항값을 비례환산 하여, 디지털 변환값이 설정된 leak기준값보다 높으면 Leak로 판단하고, 설정된 Fault기준값보다 낮으면 Fault로 판단하는 것을 특징으로 한다.In addition, the microcomputer unit converts the measured voltages of both ends into digital and then proportionally converts the resistance value, and determines that the digital conversion value is higher than the set leak reference value as a leak, and determines that it is a fault when the digital conversion value is lower than the set fault reference value. .

또한 상기 센서케이블로 공급되는 전원이 DC전원으로 이루어지되, 제1센서와 제2센서로 공급되는 DC전원의 극성이 바뀔 수 있도록 제어하는 전원극성전환부;가 더 포함되는 것을 특징으로 한다.In addition, the power supplied to the sensor cable is made of DC power, the power polarity switching unit for controlling so that the polarity of the DC power supplied to the first sensor and the second sensor;

또한 상기 센서케이블은 제1전원선, 제1감지선, 제2전원선, 제2감지선이 나선방향으로 일체로 꼬아져서 하나의 케이블 형태로 이루어지는 것을 특징으로 한다.In addition, the sensor cable is characterized in that the first power line, the first sensing line, the second power line, the second sensing line is twisted integrally in the spiral direction to form a single cable.

본 발명은 4선 타입의 센서케이블을 적용하여, 화학물질의 누액여부를 신속하게 파악할 수 있도록 하면서, 누액감지가 이루어지는 센서의 단선여부를 실시간으로 감지하여, 누액감지장치의 정상작동 상태를 유지할 수 있는 효과가 있다.The present invention by applying a four-wire sensor cable, it is possible to quickly determine whether the leakage of chemicals, while detecting the disconnection of the sensor in which the leak detection is made in real time, it is possible to maintain the normal operating state of the leak detection device It has an effect.

그리고 본 발명은 센서케이블이 제1전원선, 제1감지선, 제2전원선, 제2감지선이 나선방향으로 일체로 꼬아져서 하나의 케이블 형태로 이루어져, 컴팩트한 구조로 이루어져 설치가 용이하고, 제1감지선과 제2감지선의 감지방향에 따른 제한이 없어서 누액감지의 정확도가 향상되고, 외부 노이즈에 강한 이점을 갖는다.In the present invention, the sensor cable is twisted integrally in the spiral direction of the first power line, the first sensing line, the second power line, and the second sensing line to form a single cable shape, which is made of a compact structure and is easy to install. Since there is no restriction according to the sensing direction of the first sensing line and the second sensing line, the accuracy of leak detection is improved and has a strong advantage against external noise.

도 1은 본 발명의 케이블타입 센서를 이용한 화학물질 누액감지장치를 나타낸 구성도
도 2는 본 발명의 단선감지저항을 통해 미세전류 발생과정의 이해를 돕기 위한 전기흐름도
도 3는 본 발명의 센서케이블 구조를 나타낸 도면
도 4은 본 발명의 센서케이블 구조를 단면상태로 나타낸 도면1 is a block diagram showing a chemical leakage detection device using a cable type sensor of the present invention
Figure 2 is an electric flow diagram for helping to understand the microcurrent generation process through the disconnection sensing resistor of the present invention
3 is a view showing the structure of the sensor cable of the present invention
4 is a cross-sectional view showing the sensor cable structure of the present invention.

이하 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다. 그리고 본 발명을 설명함에 있어서, 관련된 공지기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

본 발명의 케이블타입 센서를 이용한 화학물질 누액감지장치는 도 1에 도시한 바와 같이 제1전원선(111)과 제1감지선(112)으로 연결되는 제1센서(110)와, 제2전원선(121)과 제2감지선(122)으로 연결되는 제2센서(120);로 구성되는 센서케이블(100)과, 일정전압으로 전원을 공급하는 전원공급부(200)와, 상기 전원공급부(200)와 연결되어 공급전원의 전압을 가변하여 감지하고자 하는 누액의 종류에 맞게 센서케이블(100)로 전원을 공급하는 가변전압부(300)와, 상기 센서케이블(100)과 표준저항(410)이 연결되어 제1센서(110)와 제2센서(120)에 정전압을 인가하고, 상기 표준저항(410)의 양단전압을 측정하여 Leak 여부를 판단하는 마이컴부(400)와, 상시 센서케이블(100)의 제1센서(110)와 제2센서(120) 사이에 설치되어 표준저항(410)의 양단에 항시 미세전압을 발생시키는 단선감지저항(500);으로 이루어지고, 상기 마이컴부(400)에서는 단선감지저항(500)을 통해 발생되는 미세전압을 측정하여 Fault 여부를 상시 측정하는 것을 특징으로 한다.Chemical leakage sensor using the cable type sensor of the present invention, as shown in Figure 1, the first sensor 110 and the second power source connected to the first power line 111 and the first detection line 112, A second sensor 120 connected by a line 121 and a second sensing line 122; a sensor cable 100, a power supply unit 200 for supplying power at a predetermined voltage, and the power supply unit ( A variable voltage unit 300 connected to the power supply 200 and supplying power to the sensor cable 100 according to the type of leakage to be detected by varying the voltage of the supply power, the sensor cable 100 and the standard resistor 410. Is connected to apply a constant voltage to the first sensor 110 and the second sensor 120, by measuring the voltage across both ends of the standard resistor 410 to determine whether or not the microcomputer unit 400, and always the sensor cable ( It is installed between the first sensor 110 and the second sensor 120 of the 100 to detect the disconnection to generate a minute voltage at both ends of the standard resistor 410 500; comprises, in the microcomputer unit 400 is characterized in that the measurement at all times whether Fault by measuring the fine-line voltage generated by the sense resistor 500.

본 발명의 센서케이블(100)은 2개의 전원선과 2개의 감지선으로 이루어진 4선식 케이블이 해당된다. 구체적으로는 제1전원선(111)과 제1감지선(112)으로 연결되는 제1센서(110)와, 제2전원선(121)과 제2감지선(122)으로 연결되는 제2센서(120);로 구성된다. 상기 제1센서(110)의 제1전원선(111)과 제1감지선(112)은 끝 부분이 서로 연결되어 있으며 하나의 회로를 구성한다. 상기 제2센서(120)의 제2전원선(121)과 제2감지선(122) 역시 끝 부분이 서로 연결되어 있는 형태로 되어 있어서, 센서케이블(100)은 총 2개의 회로를 구성한다.The sensor cable 100 of the present invention corresponds to a four-wire cable consisting of two power lines and two sensing lines. Specifically, the first sensor 110 connected by the first power line 111 and the first sensing line 112, and the second sensor connected by the second power line 121 and the second sensing line 122. 120, consisting of. End portions of the first power line 111 and the first sensing line 112 of the first sensor 110 are connected to each other and constitute one circuit. The second power line 121 and the second sensing line 122 of the second sensor 120 are also in the form that the ends are connected to each other, the sensor cable 100 constitutes a total of two circuits.

상기 전원공급부(200)는 누액감지장치의 전반적인 전원공급을 담당하는 구성에 해당된다. 그리고 상기 가변전압부(300)는 감지하고자 하는 누액의 종류에 맞게 전원공급부(200)의 공급전원을 가변하여 센서케이블(100)로 공급하는 구성에 해당된다.The power supply unit 200 corresponds to the configuration in charge of the overall power supply of the leak detection device. The variable voltage unit 300 corresponds to a configuration in which the supply power of the power supply unit 200 is supplied to the sensor cable 100 according to the type of leakage to be detected.

상기 마이컴부(400)는 제1센서(110)와 제2센서(120)의 저항값을 측정하여 화학물질의 Leak 여부를 판단하는 구성으로서, 구체적인 감지방법은 센서케이블(100)에 표준저항(410)이 연결되어 제1센서(110)와 제2센서(120)에 정전압을 인가하게 된다. 그리고 상기 표준저항(410)의 양단전압을 측정하게 된다. 만약 Leak가 발생하게 되면 낮아진 제1센서(110)와 제2센서(120)의 저항값으로 인해 표준저항(410)의 양단전압이 높아지기 때문에, 상기 마이컴부(400)는 내장된 ADC(Analog to Digital Converter)기능을 통해 아날로그 신호를 디지털 신호로 변환하고, 저항값으로 비례 환산한다. 이렇게 디지털 신호로 변환된 값이 설정된 Leak기준값보다 높으면 Leak로 판단하게 된다.The microcomputer 400 is a configuration for determining whether the chemical leaks by measuring the resistance values of the first sensor 110 and the second sensor 120, the specific detection method is the standard resistance ( 410 is connected to apply a constant voltage to the first sensor 110 and the second sensor 120. Then, the voltage at both ends of the standard resistor 410 is measured. If the leakage occurs, the voltage between the both ends of the standard resistor 410 is increased due to the lower resistance of the first sensor 110 and the second sensor 120, so that the microcomputer 400 has a built-in ADC (Analog to Digital Converter converts analog signal to digital signal and converts proportional to resistance value. If the value converted into the digital signal is higher than the set Leak reference value, it is determined as the Leak.

그리고 본 발명은 상기 단선감지저항(500)과 마이컴부(400)를 통해 제1센서(110)와 제2센서(120)의 단선(Fault) 여부를 상시측정할 수 있는 특징이 있다. 상기 단선감지저항(500)은 도면에 도시한 바와 같이 제1센서(110)와 제2센서(120) 사이에 설치되어 Leak상태가 아니더라도 표준저항(410)의 양단에 항시 미세전압을 발생시키게 된다. 따라서, 상기 마이컴부(400)에서는 단선감지저항(500)을 통해 발생되는 미세전압을 측정하여 Fault 여부를 판단하게 되는데, Leak 판단 과정과 동일하게 디지털 신호로 변환한 다음 변환된 값이 Fault기준값보다 낮으면 Fault로 판단하는 것이다.In addition, the present invention has the characteristic of measuring the disconnection of the first sensor 110 and the second sensor 120 at all times through the disconnection detection resistor 500 and the microcomputer unit 400. The disconnection detection resistor 500 is installed between the first sensor 110 and the second sensor 120 as shown in the drawing to generate a minute voltage at both ends of the standard resistor 410 even when not in the leak state. . Accordingly, the microcomputer unit 400 determines whether the fault is measured by measuring the minute voltage generated through the disconnection detection resistor 500. The converted value is converted to a digital signal in the same manner as the leak determination process, and then the converted value is higher than the fault reference value. If it is low, it is regarded as fault.

상기 단선감지저항(500)에 따른 미세전압 발생과정을 도 2를 통해 좀 더 상세히 설명하고자 한다. 만약, 단선감지저항(500)이 존재하지 않는다면 평상시 제1센서(110)와 제2센서(120)가 서로 전기적으로 연결되지 못하기 때문에, 전압측정이 불가능하며, Leak상태일 경우에만 표준저항(410)의 전압측정을 통해 Leak 여부만 판단할 수 있게 된다. 따라서, 본 발명은 도 2에 도시한 바와 같이 제1센서(110)와 제2센서(120)를 연결하는 형태의 단선감지저항(500)을 통해 항시 미세전류를 흘려줄 수 있게 되는 것이다.The microvoltage generation process according to the disconnection sensing resistor 500 will be described in more detail with reference to FIG. 2. If the disconnection sensing resistor 500 does not exist, since the first sensor 110 and the second sensor 120 are not electrically connected to each other, voltage measurement is impossible, and the standard resistance is only available in the leak state. Through the voltage measurement of the 410 it is possible to determine only the leak. Therefore, the present invention will allow the microcurrent to flow at all times through the disconnection detection resistor 500 in the form of connecting the first sensor 110 and the second sensor 120 as shown in FIG.

아울러, 본 발명은 상기 센서케이블(100)로 공급되는 전원이 DC전원으로 이루어지되, 제1센서(110)와 제2센서(120)로 공급되는 DC전원의 극성이 바뀔 수 있도록 제어하는 전원극성전환부(600);가 더 포함될 수 있다.In addition, the present invention, the power supplied to the sensor cable 100 is made of a DC power, the polarity of the power to control the polarity of the DC power supplied to the first sensor 110 and the second sensor 120 is changed Conversion unit 600; may be further included.

상기 전원극성전환부(600)는 DC전원의 +극성과 -극성의 방향을 반복적으로 변경하여 우천시에 접촉되는 빗물 또는 누액발생시 화학물질의 접촉과정에서 특정 극성에만 반응하는 산화현상이 어느 한쪽의 감지선에 집중되지 않도록 하여 제1감지선(112)과 제2감지선(122)의 수명을 늘릴 수 있게 되는 것이다.The power polarity switching unit 600 detects either side of the oxidation of the power supply in response to a specific polarity in the process of contacting the chemicals during rain water or leakage occurs by repeatedly changing the + polarity and-polarity directions of the DC power supply By not concentrating on the line, the lifespan of the first sensing line 112 and the second sensing line 122 can be increased.

또한 본 발명의 누액감지장치는 도면에 도시한 바와 같이 상태표시부(700), 통신부(800), 경보상태 접점부(910), 경보상태 알람부(920)를 더 포함할 수 있다. 상기 상태표시부(700)는 설정된 Leak기준값, Fault기준값, 센서 신호값을 100분율로 표시하여 관리자가 쉽게 파악하도록 되어 있으며, 상기 통신부(800)는 RS485 통신을 이용하여 또 다른 위치에 설치된 누수감지기와 함께 병렬연결되어 원격지에서 전체적인 모니터링이 이루어지도록 한 구성이다.In addition, the leak detection apparatus of the present invention may further include a status display unit 700, a communication unit 800, an alarm state contact unit 910, an alarm state alarm unit 920. The status display unit 700 is configured to display the set Leak reference value, Fault reference value, sensor signal value by 100% for easy management by the administrator, the communication unit 800 and the leak detector installed in another location using RS485 communication It is a configuration that overall monitoring is performed in remote place by parallel connection together.

그리고 상기 경보상태 접점부(910)는 마이컴부(400)에서 Leak 또는 Fault로 판단될 경우, 원격접점을 통해 경보상태를 전기신호로 전송하는 구성이며, 상기 경보상태 알람부(920)는 마이컴부(400)에서 Leak 또는 Fault로 판단될 경우, 비프음으로 경보상태를 알려주게 된다. 상기 비프음은 Leak와 Fault 상태를 구분할 수 있도록 2종류의 비프음으로 구성되는 것이 바람직하다.When the alarm state contact unit 910 is determined to be a leak or a fault in the microcomputer unit 400, the alarm state contact unit 910 is configured to transmit an alarm state as an electrical signal through a remote contact, and the alarm state alarm unit 920 is a microcomputer unit. If it is determined at (400) Leak or Fault, a beep will sound an alarm condition. The beep sound is preferably composed of two types of beep sounds to distinguish between a leak and a fault condition.

본 발명의 센서케이블(100)은 도 3에 도시한 바와 같이 제1전원선(111), 제1감지선(112), 제2전원선(121), 제2감지선(122)이 나선방향으로 일체로 꼬아져서 하나의 케이블 형태로 이루어져 있다. 이와 같이 나선형태로 꼬아진 케이블로 구성될 경우, 컴팩트한 구조로 이루어져 설치가 용이하고, 제1감지선(112)과 제2감지선(122)의 감지방향에 따른 제한이 없어서 누액감지의 정확도가 향상되고, 외부 노이즈에 강한 이점을 갖는다.In the sensor cable 100 of the present invention, as shown in FIG. 3, the first power line 111, the first sensing line 112, the second power line 121, and the second sensing line 122 are in a spiral direction. It is twisted integrally into one cable form. When the cable is twisted in a spiral shape as described above, it is easy to install due to its compact structure, and there is no limitation according to the sensing direction of the first sensing line 112 and the second sensing line 122, so that the accuracy of leakage detection Is improved, and has a strong advantage against external noise.

상기 센서케이블(100)의 구체적인 단면구조는 도 4에 도시한 바와 같이 좌,우측에는 각각 제1전원선(111)과, 제2전원선(121)이 배치되고, 상,하측에는 각각 제1감지선(112)과 제2감지선(122)이 배치되는 구조로 이루어지되, 상기 제1전원선(111)과 제2전원선(121)은 전원선을 감싸는 절연재질의 피복부(130)를 통해 제1감지선(112)과 제2감지선(122)에 비해 큰 직경을 갖게되며, 상기 제1전원선(111)과 제2전원선(121)의 피복부(130)는 서로 맞닿는 형태로 배치되고, 상기 제1감지선(112)과 제2감지선(122)은 피복부(130)의 두께에 의해 서로 이격되어 있는 형태로 배치된다.As shown in FIG. 4, the cross-sectional structure of the sensor cable 100 includes a first power line 111 and a second power line 121 on the left and right sides, respectively, and a first power line on the upper and lower sides, respectively. The sensing line 112 and the second sensing line 122 are disposed, but the first power line 111 and the second power line 121 are coated with an insulating material 130 surrounding the power line. It has a larger diameter than the first sensing line 112 and the second sensing line 122 through, the covering portion 130 of the first power line 111 and the second power line 121 is in contact with each other. The first sensing line 112 and the second sensing line 122 are disposed in the form of being spaced apart from each other by the thickness of the covering part 130.

상기와 같은 센서케이블(100)의 구조는 제1감지선(112)과 제2감지선(122)으로 누액이 효과적으로 전달될 수 있도록 하면서, 제1전원선(111)과 제2전원선(121)의 피복부(130)가 외부의 충격으로부터 보호해줄 수 있는 구조로 되어 있어서, 감지정확성은 유지한 채로 외부 충격에 의해 제1감지선(112)과 제2감지선(122)이 손상되는 것을 방지하고 강한 내구성을 갖게 되는 것이다.The structure of the sensor cable 100 as described above allows the leakage of liquid to be effectively transmitted to the first sensing line 112 and the second sensing line 122, and the first power line 111 and the second power line 121. ) Is a structure that can protect from the external shock, so that the first sensing line 112 and the second sensing line 122 is damaged by the external shock while maintaining the detection accuracy. Prevent and have a strong durability.

상기 좌,우,상,하에 대한 내용은, 설명의 편의상 특정위치의 단면기준으로 기재된 내용이므로, 단면의 위치에 따라 배치 방향이 다를 수 있지만, 제1전원선(111), 제2전원선(121), 제1감지선(112), 제2감지선(122)의 배치구조는 동일함은 물론이다.The left, right, top, and bottom of the content is described as a cross-sectional reference of a specific position for convenience of description, the arrangement direction may be different depending on the position of the cross-section, the first power line 111, the second power line ( 121, the arrangement structure of the first sensing line 112 and the second sensing line 122 is the same.

이상에서 본 발명은 상기 실시예를 참고하여 설명하였지만 본 발명의 기술사상 범위 내에서 다양한 변형실시가 가능함은 물론이다.In the above, the present invention has been described with reference to the above embodiment, but various modifications can be made within the technical scope of the present invention.

100 : 센서케이블 110 : 제1센서
111 : 제1전원선 112 : 제1감지선
120 : 제2센서 121 : 제2전원선
122 : 제2감지선 130 : 피복부
200 : 전원공급부 300 : 가변전압부
400 : 마이컴부 410 : 표준저항
500 : 단선감지저항 600 : 전원극성전환부
700 : 상태표시부 800 : 통신부
910 : 경보상태 접점부 920 : 경보상태 알람부100: sensor cable 110: first sensor
111: first power line 112: first sensing line
120: second sensor 121: second power line
122: second detection line 130: covering part
200: power supply unit 300: variable voltage unit
400: microcomputer unit 410: standard resistance
500: disconnection detection resistance 600: power polarity switching unit
700: status display unit 800: communication unit
910: alarm state contact unit 920: alarm state alarm unit

Claims (4)

제1전원선(111)과 제1감지선(112)으로 연결되는 제1센서(110)와, 제2전원선(121)과 제2감지선(122)으로 연결되는 제2센서(120);로 구성되는 센서케이블(100)과,
일정전압으로 전원을 공급하는 전원공급부(200)와,
상기 전원공급부(200)와 연결되어 공급전원의 전압을 가변하여 감지하고자 하는 누액의 종류에 맞게 센서케이블(100)로 전원을 공급하는 가변전압부(300)와,
상기 센서케이블(100)과 표준저항(410)이 연결되어 제1센서(110)와 제2센서(120)에 정전압을 인가하고, 상기 표준저항(410)의 양단전압을 측정하여 Leak 여부를 판단하는 마이컴부(400)와,
상시 센서케이블(100)의 제1센서(110)와 제2센서(120) 사이에 설치되어 표준저항(410)의 양단에 항시 미세전압을 발생시키는 단선감지저항(500);으로 이루어지고,
상기 마이컴부(400)에서는 단선감지저항(500)을 통해 발생되는 미세전압을 측정하여 Fault 여부를 상시 측정하는 것을 특징으로 하는 케이블타입 센서를 이용한 화학물질 누액감지장치
The first sensor 110 is connected to the first power line 111 and the first sensing line 112, and the second sensor 120 is connected to the second power line 121 and the second sensing line 122. Sensor cable 100, consisting of;
A power supply unit 200 for supplying power at a constant voltage,
A variable voltage unit 300 connected to the power supply unit 200 and supplying power to the sensor cable 100 according to the type of leakage to be detected by varying the voltage of the supply power;
The sensor cable 100 and the standard resistor 410 are connected to apply a constant voltage to the first sensor 110 and the second sensor 120, and determine the leakage by measuring the voltage between both ends of the standard resistor 410. The microcomputer unit 400,
It is always installed between the first sensor 110 and the second sensor 120 of the sensor cable 100, the disconnection detection resistor 500 for generating a minute voltage at both ends of the standard resistor 410;
The microcomputer 400 detects leakage of the chemical substance using a cable type sensor, characterized in that by measuring the minute voltage generated through the disconnection detection resistor 500 to constantly measure whether or not the fault.
제 1항에 있어서,
상기 마이컴부(400)에서는 측정된 양단전압을 디지털로 변환한 후 저항값을 비례환산 하여, 디지털 변환값이 설정된 leak기준값보다 높으면 Leak로 판단하고, 설정된 Fault기준값보다 낮으면 Fault로 판단하는 것을 특징으로 하는 케이블타입 센서를 이용한 화학물질 누액감지장치
The method of claim 1,
The microcomputer 400 converts the measured voltages of both ends into digital and proportionally converts the resistance value, and determines that the digital conversion value is Leak when the digital conversion value is higher than the set leak reference value, and determines that the fault is lower than the set fault reference value. Chemical leakage detection device using cable type sensor
제 1항에 있어서,
상기 센서케이블(100)로 공급되는 전원이 DC전원으로 이루어지되, 제1센서(110)와 제2센서(120)로 공급되는 DC전원의 극성이 바뀔 수 있도록 제어하는 전원극성전환부(600);가 더 포함되는 것을 특징으로 하는 케이블타입 센서를 이용한 화학물질 누액감지장치
The method of claim 1,
The power supplied to the sensor cable 100 is made of DC power, the power polarity switching unit 600 for controlling so that the polarity of the DC power supplied to the first sensor 110 and the second sensor 120 can be changed. Chemical leakage detection device using a cable-type sensor characterized in that it further comprises;
제 1항에 있어서,
상기 센서케이블(100)은 제1전원선(111), 제1감지선(112), 제2전원선(121), 제2감지선(122)이 나선방향으로 일체로 꼬아져서 하나의 케이블 형태로 이루어지는 것을 특징으로 하는 케이블타입 센서를 이용한 화학물질 누액감지장치The method of claim 1,
The sensor cable 100 is the first power line 111, the first sensing line 112, the second power line 121, the second sensing line 122 is twisted integrally in a spiral direction to form a single cable Chemical leakage detection device using a cable type sensor, characterized in that consisting of
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2777292C1 (en) * 2021-06-22 2022-08-02 Александр Александрович Пономаренко Apparatus and method for alerting of the appearance of a conductive liquid with location of the spill site
KR20230112408A (en) 2022-01-20 2023-07-27 이상철 Leak detection sensor with a function of diagnosing whether the sensing electrode is disconnected or not

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180071005A (en) * 2016-12-19 2018-06-27 (주)제일에치티에스 Detecting cable for leakage of alcohols
KR20180115385A (en) * 2017-04-12 2018-10-23 김동언 Leak sensor device using electrolysis

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180071005A (en) * 2016-12-19 2018-06-27 (주)제일에치티에스 Detecting cable for leakage of alcohols
KR20180115385A (en) * 2017-04-12 2018-10-23 김동언 Leak sensor device using electrolysis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2777292C1 (en) * 2021-06-22 2022-08-02 Александр Александрович Пономаренко Apparatus and method for alerting of the appearance of a conductive liquid with location of the spill site
KR20230112408A (en) 2022-01-20 2023-07-27 이상철 Leak detection sensor with a function of diagnosing whether the sensing electrode is disconnected or not
KR20230112446A (en) 2022-01-20 2023-07-27 이상철 Leak detection sensor with a function of diagnosing whether the sensing electrode is disconnected or not

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